NAVY MIL-H-24591 B-1994 HOISTS CHAIN PNEUMATIC LOW HEADROOM TROLLEY TYPE《有空气的最低车身内部高度推车型电动起重机》.pdf

1、INCH POUND MIL-H-24591B(SH) 28 February 1994 SUPERSEDING 19 August 1987 MIL-H-24591A(SH) (See 6.9) MILITARY SPECIFICATION HOISTS, CHAIN, PNEUMATIC, LOW HEADROOM, TROLLEY TYPE This specification is approved for use within the Naval Sea Systems Command, Department of the Navy, and is available for use

2、 by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers pneumatic, trolley type chain hoists with traverse drive, having extreme low headroom and zero load eccentricity; Hoists include a lifting unit, a traversing unit, and a pendant unit. 1.2 Cla

3、ssification. Hoists shall be of the following types or capacities as specified (see 6.2). a Type I - 2,000 pound rated load Type II - 4,000 pound rated load Type III - 6,000 pound rated load 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications an standards. The following specificat

4、ions and standards form a part of this document to the extent specified herein. otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2

5、). Unless Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 03442, 2531 Jefferson Davis Hwy., Arlington, VA 22242-5160 by using the self-addressed Standar

6、dization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 3950 DISTRIBUTION STATEMENT A Approved for public release; distribution is unlimited. a Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS

7、-,-,- - flIL-H-2459LB 999990b 1973533 bdd SPECIFICATIONS FEDERAL TT - E - 490 UU-P-268 PPP-C- 850 PPP-c-1120 MILITARY MIL- S - 901 MIL-E-917 MIL-M-3184 MIL-R-6130 MIL-P-15024 MIL-P-15024/5 - MIL-L-17331 MIL-R-20092 MIL-A-21180 MIL-P-24441 MIL-P-24441/1 - MIL-P-24441/2 - DOD-P-24648 MIL-P-26514 STAND

8、ARDS MILITARY MIL-STD-167-1 - MIL-STD-721 MIL-STD-740-1 - Enamel, Silicone Alkyd Copolymer, Semigloss (for Paper, Kraft, Wrapping. Cushioning Material, Polystyrene Expanded, Resilient Cushioning Material, Uncompressed Bound Fiber for Exterior and Interior Non-Residential Use). (for Packaging Uses).

9、Packaging. Shock Tests, H.I. (High-Impact); Shipboard Electric Power Equipment, Basic Requirements Machinery: Machinery, Equipment and Systems, Requirements for. (Naval Shipboard Use). Deck and Vehicle Mounted with Associ- ated Equipment and Provisioned (Repair Parts) Items; Packaging of. Rubber, Ce

10、llular, Chemically Blown. Plates, Tags and Bands for Identification of Plates, Identification. Lubricating Oil, Steam Turbine and Gear, Moderate Service, Rubber or Plastic Sheets and Assembled and Molded Shapes, Synthetic, Foam or Sponge, Open Cell. Aluminum-Alloy Castings, High Strength. Paint, Epo

11、xy-Polyamide, General Specification Paint, Epoxy-Polyamide, Green Primer, Formula Paint, Epoxy-Polyamide, Exterior Topcoat, Haze Primer Coating, Zinc Dust Pigmented For Exterior Polyurethane Foam, Rigid or Flexible, for Equipment. for. 150, Type I. Gray, Formula 151, Type I. Steel Surfaces (Metric)

12、Packaging. Mechanical Vibrations of Shipboard Equipment (Type I - Environmental and Type II - Internally Excited), Maintainability. Criteria of Shipboard Equipment. Definitions of Terms for Reliability and Airborne Sound Measurements and Acceptance 2 Provided by IHSNot for ResaleNo reproduction or n

13、etworking permitted without license from IHS-,-,-_I_ - * MIL-H-24591B 999990b 1973534 514 (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from the Standardization Documents Order Desk, BLDG. 4D, 700 Robbins Avenue, Philadelphia, PA 1

14、9111-5094.) 2.2 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation. Unless otherwise spec

15、ified, the issues of docu- ments not listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 143 - Standard Practice for Safeguarding Against Embrittlement of Hot Dip Galvanized Structural Steel Products and Proced

16、ure for Detecting Embrittlement. (DoD adopted) B 633 - Standard Specification for Electrodeposited Coatings B 695 - Standard Specification for Coatings of Zinc of Zinc on Iron and Steel. (DoD adopted) Mechanically Deposited on Iron and Steel. (Application for copies should be addressed to the Americ

17、an Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) STEEL STRUCTURES PAINTING COUNCIL (SSPC) Surface Preparation Specification SP-10 - Near White Blast Cleaning. (Application for copies should be addressed to the Steel Structure Painting Council, 4400 5th Avenue, Pittsbu

18、rgh, PA 15213.) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA) OSHA 2206 - OSHA Safety and Health Standards (Part 1910, Title 29 of the Code of Federal Regulations). (Application for copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington, DC 20402

19、.) (Nongovernment standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.) 2.3 Order of vrecedence. In the event of a conflict between the t

20、ext of this specification and the references cited herein the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted wi

21、thout license from IHS-,-,- - MIL-H-24591B 9799906 1973535750 . d 3. REQUIREMENTS 3.1 First article. When specified (see 6.2) , a sample shall be subjected to first article inspection (see 6.4) in accordance with 4.3. 3.2 Materials, Materials shall possess the properties necessary to withstand vibra

22、tion, shock, and other conditions specified herein. Materials for use in exposed locations subject to salt water spray shall be free from all defects and imperfections that may affect serviceability or appearance of the hoists, 3.2.1 Metals. Lightweight, high strength alloys shall be used. Aluminum-

23、 alloy castings shall be in accordance with MIL-A-21180. Magnesium alloy (does not include steel or aluminum alloys which contain less than 0.5 percent magnesium), beryllium, cast iron, pressed steel and cadmium plating in any form shall not be used. Metals used in the construction of the hoists for

24、 exposed locations shall be, to the greatest extent possible, selected from the following: (a) Steel alloys up to yield strength levels of 130 kilopounds per square inch (kpsi). (b) Aluminum castings in accordance with MIL-A (c) Corrosion resisting steel alloys 316 and 3 (d) Stainless steel alloy 17

25、-4PH, heat treated 130 KPSI. (e) Nickel-copper alloys. (f) Nickel - iron al-loys , 21180. 6L. to maximum yield strength of Permission for the use of metals or structural materials other than those listed shall be granted by the contracting activity (see 6.7). 3.2.2 Recovered materials. Unless otherw

26、ise specified herein, all equipment, material, and articles incorporated in the products covered by this specification shall be new and may be fabricated using materials produced from recovered materials to the maximum extent practicable without jeopardizing the intended use. The term “recovered mat

27、erials# means materials which have been collected or recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw materials, None of the above shall be inter- preted to mean that the use of used or rebuilt products is allowed under this specification unles

28、s otherwise specifically specified. 3.3 Safety. 3.3.1 Safety criteria and consideration, Equipment design shall consider, but not be limited to, the following (see 6.3): (a) Avoiding or eliminating identified hazards by design selection or material selection. 4 Provided by IHSNot for ResaleNo reprod

29、uction or networking permitted without license from IHS-,-,-flIL-H-24591B = 7999706 1773536 397 (b) Controlling and minimizing hazards to personnel, equipment and material which cannot be avoided or eliminated. (c) Isolating hazardous substances, parts and operations from other activities, areas, pe

30、rsonnel and incompatible materials. (d) Incorporating fail-safe design features so that failures will not cause injury to personnel or damage to equipment. (e) Locating equipment parts so that access to them by personnel during operation, maintenance, repair or adjustment shall not require exposure

31、to hazards such as chemical burns, electrical shock, cutting edges, sharp points or toxic atmospheres. maintenance, and repair instructions; and distinctive warnings of hazards on the equipment. (f) Providing warning and caution notes in operations, assembly, 3.4 Performance and characteristics. 3.4

32、.1 Tvpe I. Performance and characteristics for Type I hoist shall be as follows : (a) Rated load - not less than 2,000 pounds. (b) Lifting speed - not less than 25 feet per minute (ft/min). (c) Lift range - not less than 8 feet, unless otherwise specified (see 6.2). (d) Weight - not greater than 185

33、 pounds, excluding.chain and hook. (e) Width - not greater than 12 inches to either side of trolley center- (f) Length - 26 inches (not including optional cushion bumpers). (g) Height - Distance from underside of track to lifting surface of line. retracted load hook, minimum practicable but not grea

34、ter than 6.5 inches; in addition, other hoist projections excluding chain basket shall extend not greater than 15 inches below underside of the track. No part of hoist shall extend 4 inches above the bottom of the trolley track. (h) Rated air gauge pressure - 90 pounds per square inch (psi). (i) Air

35、 consumption - 90 to 100 standard cubic feet per minute (ft/min) at (j) Trolley track size - 5- by 3.000-inch by 10 pounds per foot (lb/ft), 5- 90 psi. by 3.284-inch by 14.75 lb/ft, 6- by 3.330-inch by 12.5 lb/ft and 6- by 3.565-inch by 17.25 lb/ft “I“ beam. (k) Trolley track radius - Trolley hoist

36、shall negotiate IS“ curves of 26- inch radius. (i) Traversing speed - not greater than 40 ft/min with rated load and air pressure on the level and 10 ft/min on 10-degree incline. 3.4.2 Tvpe II. Performance and characteristics for Type II hoist shall as follows: (a) Rated load - 4,000 pounds. (b) Lif

37、ting speed - not less than 16 ft/min. be .2). - (c) Lift range - not less than 8 feet, unless otherwise specified (see (d) Weight - not greater than 185 pounds for hoist unit, excluding chain and hook. Cumulative weight of hoist, trolley and hoist tractor units may 5 Provided by IHSNot for ResaleNo

38、reproduction or networking permitted without license from IHS-,-,-MIL-H-24591B 9999906 1973537 223 total not greater than 225 pounds with 8 feet of lift chain and hook, if readily disconnected. (e) Width - not greater than 12 inches to either side of trolley center- line. (f) Length - 26 inches (not

39、 including cushion bumpers). (9) Height - Distance from underside of track to lifting surface of retracted load hook, minimum practicable but not greater than 6.5 inches; in addition, other hoist projections excluding chain basket shall extend greater than 15 inches below underside of the track. par

40、t of hoist shall extend 4 inches above the bottom of the trolley track. No (h) Rated air gauge pressure - 90 si. (i) Air consumption - 90 to 100 ft/min at 90 psi. (j) Trolley track size - 5- by 3.000-inch by 10 lb/ft, 5- by 3.284-inch by 14.75 lb/ft, 6- by 3.330-inch by 12.5 lb/ft, 6- by 3.565-inch

41、by 17.25 lb/ft and 8- by 4.000-inch by 18.4 lb/ft “I“ beam. (k) Trolley track radius - Trolley hoist shall negotiate curves of 26- inch radius. (i) Traversing speed - pressure on the level and 10 ft/min on 10-degree incline. P not less than 40 ft/min with rated load and air 3.4.3 Tvpe 1.11. Performa

42、nce and characteristics for Type III hoist shall be as follows: (a) Rated load - not less than 6,000 pounds. (b) Lifting speed - not less than 10 ft/min. (c) Lift range - not less than 8 feet unless otherwise specified (see (d) Weight - not greater than 285 pounds, excluding chain and hook. (e) Widt

43、h - not greater than 12.5 inches to either side of trolley center- line. (f) Length - 31 inches (including optional cushion bumpers). (g) Height - Distance from underside of track to lifting surface of 6.2). retracted load hook, minimum practicable, but not greater than 9.5 inches; in addition, othe

44、r hoist projections excluding chain basket shall extend not greater than 15 inches below under side of the track. No part of hoist shall extend 4 inches above the bottom of the trolley track. (h) Rated air gauge pressure - 90 psi. (i) Air consumption - 90 to 100 standard ft/min at 90 psi. (j) Trolle

45、y track size - 8- by 4.000-inch by 18.4 lb/ft “1“ beam, adaptable to 6- by 3.330-inch by 12.5 lb/ft and 6- by 3.565-inch by 17.25 lb/ft lI“ beam. inch radius. pressure on the level and 10 ft/min on 10-degree incline. (k) Trolley track radius - Trolley hoist shall negotiate “S“ curves of 36- (i) Trav

46、ersing speed - not less than 35 ft/min with rated load and air 3.5 Incline consideration, Hoisting and traversing brakes shall be provided which shall hold the rated load on an incline of plus or minus 15 degrees with the horizontal in any direction. The hoist shall operate on a plus or minus 10-deg

47、ree incline with the horizontal in any direction, with rated load, at reduced speed, 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_. MIL-H-2459LB W 99999Ob L973538 LbT through the full lift range. 3.6 Construction. Hoist shall be in accordance w

48、ith the requirements specified herein. Components shall have adequate strength to operate satisfac- torily under the requirements specified. Parts shall be as light and compact as practicable, yet consistent with the required strength and stiffness. Rotating shafts shall be supported in antifriction

49、, lubricated or self-lubricated bushings or bearings. Shaft bushings and bearings shall be enclosed against entry of dirt, dust or foreign material. Rotating and sliding surfaces shall be lubricated. Hoist shall operate at temperatures of O through 130 degrees Fahrenheit (F) for not less than 3,000 cycles without a failure. Hoist construction shall permit chain replacement by the use of simple hand tools. against dirt, dust and water spray in a casing