1、Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-The American Society of Mechanical Engineers AN AMERICAN NATIONAL STANDARD PERFORMANCE STANDARD FOR HAND CHAIN MANUAL OPERATED GHAIN HOISTS ASME HST-
2、2-1 999 Revision of ASME HST-PM-1889 (R1 885) Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Date of Issuance: November 8, 1999 This Standard will be revised when the Society approves the issuance
3、 of a new edition. There will be no addenda or written interpretations of the requirements of this Standard issued to this edition. ASME is the registered trademark of The American Society of Mechanical Engineers. This code or standard was developed under procedures accredited as meeting the criteri
4、a for American National Standards. The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and comment that pro
5、vides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large. ASME does not “approve,“ “rate,“ or “endorse“ any item, construction, proprietary device, or activity. ASME does not take any position with respect to the validity of any patent ri
6、ghts asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expressly advised that determinatio
7、n of the validity of any such patent rights, and the risk of the infringement of such rights, is entirely their own responsibility. Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this code or s
8、tandard. ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME procedures and policies, which precludes the issuance of interpretations by individuals. No part of this document may be reproduced in any form, in an electronic retrie
9、val system or otherwise, without the prior written permission of the publisher. The American Society of Mechanical Engineers Three Park Avenue, New York, NY 10016-5990 Copyright 0 1999 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A. Copyright ASME International
10、Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOREWORD This Standard is one in a series that provide performance requirements for hoists and was originally issued in 1983. It was developed by the ASME Standards Committee HST
11、, Hoists - Overhead. It is intended to serve as a guide to manufacturers of the equipment, and to the purchasers and users of the equipment. Standards in this series are: HST-1 Electric Chain Hoists HST-2 Hand Chain Manually Operated Chain Hoists HST-3 Manually Lever Operated Chain Hoists HST-4 Elec
12、tric Wire Rope Hoists HST-5 Air Chain Hoists HST-6 Air Wire Rope Hoists This revision adds a new appendix that, in conjunction with ASME HST-2-1999, is intended to replace MIL-H-904. Suggestions for improvement of this Standard are welcome. They should be sent to The American Society of Mechanical E
13、ngineers; Attn: Secretary, HST Committee, Three Park Avenue, New York, NY 10016-5990. This Standard was approved as an American National Standard on July 12, 1999. . 111 Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without
14、license from IHS-,-,-ASME STANDARDS COMMITTEE HST Hoists - Overhead (The following is the roster of the Committee at the time of approval of this Standard.) OFFICERS A. R. Toth, Chair C. J. Gomez, Secretary COMMllTEE PERSONNEL C. J. Gomez, The American Society of Mechanical Engineers D. A. Merkel, S
15、quare D Co. E. R. Naylor, Campbell Chain R. R. Reisinger, FKI Industries, Inc. A. R. Toth, Harnischfeger Industries, Inc. F. W. Weidner, Naval Sea Systems Command V Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without licen
16、se from IHS-,-,-CONTENTS Foreword Committee Roster 1 General . 1.1 Scope . 1.2 The Appendix 1.3 Reference Standards 1.4 Definitions . 2 Performance . 2.1 General 2.2 Application 2.3 Characteristics 2.4 Operation 3 Mechanical 3.1 Design Stresses 3.2 Load Sprockets (Pocket Wheels) 3.3 Load Chain 3.4 H
17、ooks . 3.5 Load Blocks . 3.6 Brakes, Mechanical Load . 3.7 Hand Chain (Hoist) and Hand Chain (Trolley) . 3.8 Overtravel Restraint 3.9 Overload Limiting Device 3.10 Trolley 4 Load Testing. Marking. Manuals. Installation. Maintenance. and Operating Procedures 4.1 Load Testing of New Hoists 4.2 Marking
18、 . 4.3 Manual 4.4 Installation . 4.5 Maintenance and Operating Procedures 5 Typical Hoist Inquiry Data . Figure 1 Headroom. Lift. and Reach . . 111 V 5 5 5 5 6 6 6 6 6 7 7 8 2 vii Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitte
19、d without license from IHS-,-,-Tables 1 Typical Hoist Characteristics - Hook or Clevis Suspended 5 2 Typical Trolley Suspended Hoist Characteristics (Hoist Suspended From a Separate Trolley) . 6 3 Typical Trolley Hoist Characteristics (Integral) . 7 Nonmandatory Appendix A Performance Requirements f
20、or Hand Chain Manually Operated Chain Hoists Used In Marine and Other Applications as Required by the U.S. Department of Defense (DOD) 11 . Vlll Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME
21、 HST-2-1999 PERFORMANCE STANDARD FOR HAND CHAIN MANUALLY OPERATED CHAIN HOISTS 1 GENERAL 1.1 Scope (a) This Standard establishes performance require- ments for hand chain manually operated chain hoists for vertical lifting service involving material handling of freely suspended (unguided) loads, usi
22、ng welded link type load chain as a lifting medium, with one of the following types of suspension: (I) hook or clevis; (2) trolley. (b) This Standard is applicable to hoists manufactured after the date on which this Standard is issued. Differen- tial pulley and self-locking worm drive type hoists ar
23、e not covered in this Standard. (c) This Standard is not applicable to: (I) damaged or malfunctioning hoists; (2) hoists that have been misused or abused; (3) hoists that have been altered without authoriza- (4) hoists used for lifting or supporting people; (5) hoists used for the purpose of drawing
24、 both the load and the hoist up or down the hoists own wire rope; and (6) hoists used for marine and other applications as required by the Department of Defense (DOD). tion of the manufacturer or a qualified person; 1.2 The Appendix Nonmandatory Appendix A, Performance Require- ments for Hand Chain
25、Manualy Operated Chain Hoists Used in Marine and Other Applications as Required by the U.S. Department of Defense (DOD), applies to the performance requirements for hoists used in marine and other applications. The requirements stated in Ap- pendix A are in addition to the requirements of ASME HST-2
26、-1999 and shall be specifically invoked. 1.3 Reference Standards ANSI 2535.4, Product Safety Signs and Labels Publisher: National Electrical Manufacturers Association (NEMA), 1300 North 17th Street, Rosslyn, VA 22209 ANSINFPA 70, National Electrical Code Publisher: National Fire Protection Associati
27、on (NFPA), 1 Batterymarch Park, Quincy, MA 02269 ASME B30.9, Slings ASME B30. IO, Hooks ASME B30.11, Monorails and Underhung Cranes ASME B30.16, Overhead Hoists (Underhung) ASME B30.17, Overhead and Gantry Cranes (Top Running Bridge, Single Girder, and Underhung Hoist) Publisher: The American Societ
28、y of Mechanical Engi- neers (ASME International), Three Park Avenue, New York, NY 10016-5990; ASME Order Department: 22 Law Drive, Box 2300, Farifield, NJ 07007-2300 1.4 Definitions abnormal operating conditions: environmental condi- tions that are unfavorable, harmful, or detrimental to or for the
29、operation of a hoist, such as excessively high or low ambient temperatures, exposure to weather, corrosive fumes, dust laden or moisture laden atmo- spheres, and hazardous locations. ambient temperature: the temperature of the atmo- sphere surrounding the hoist. beam: an overhead standard structural
30、 shape or spe- cially fabricated shape on which a trolley operates. clevis suspended hoist: a hoist suspended by means of a clevis or eye at the top of the hoist see Fig. 1, sketch(a). hand chain: an endless loop of chain suspended from the hoist (or trolley) and used to provide motion to the load h
31、ook (or trolley) (see Fig. I). The following documents form a part of this Standard hand chain drop: the distance to the lowest point of to the extent specified herein. The latest issue shall the hand chain measured from the saddle of the load apply. hook at its upper limit of travel (see Fig. 1). C
32、opyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Y 0 I L.l .- G I II I (a) Hook or Clevis Suspended I (b) Trolley Suspended FIG. 1 HEADROOM, LIFT, AND REACH d Chain L Loa I I L Load hook at lower lim
33、it of travel (c) Trolley Suspended (integral) Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PERFORMANCE STANDARD FOR HAND CHAIN MANUALLY OPERATED CHAIN HOISTS ASME HST-2-1999 hand chain operated
34、hoist: a suspended machinery unit that, by use of manual operation, is used for lifting or lowering a freely suspended (unguided) load. hand chain overhaul: the number of feet (meters) the hand chain must travel to raise the load hook 1 ft (1 m). hand chain pull: the average force measured in pounds
35、 (kN) exerted by the operator on the hoist hand chain to lift the rated load. hand chain wheel: a wheel with formed pockets on its periphery to allow torque to be transmitted when a force is applied to the hand chain. hazardous (classijed) locations: locations where fire or explosion hazards may exi
36、st. Locations are classified depending on the properties of the flammable vapors, liquids or gases, or combustible dust or fibers that may be present, and the likelihood that a flammable or combustible concentration or quantity is present. Refer to ANSINFPA 70. headroom: headroom is measured with th
37、e load hook at its upper limit of travel, and is the distance from the saddle of the load hook to the following (see Fig. 1): (a) saddle of the top hook on hook suspended hoists; (b) saddle of clevis on clevis suspended hoists; (c) bottom of beam on trolley suspended hoists. load block: the assembly
38、 of hook or shackle, swivel, bearing, pins, sprocket, and frame suspended by the load chain. This shall include all appurtenances reeved into the load chain. load chain: the load suspension chain in the hoist consisting of a series of interwoven links formed and welded. NOTE: Hand chain and load cha
39、in properties do not conform to those shown in ASME B30.9. load hook: the hook used to connect the load to the hoist. load sprocket: a hoist component that transmits motion to the load chain. This component is sometimes called load wheel, load sheave, pocket wheel, chain wheel, or lift wheel. load s
40、uspension parts: the load suspension parts are the means of suspension (trolley, hook or clevis), the chain, the sprocket(s), the structure or housing that supports the sprocket(s), and the load block. mechanical load brake: an automatic type of brake used for holding and controlling loads. This uni
41、direc- tional device requires a force applied to the hand chain to lower the load but does not impose additional hand chain pull when lifting the load. hook latch: a mechanical device to close (bridge) the minimum radius: the smallest radius of the beam, throat opening of a hook. measured to the cen
42、ter line of the web of the beam, on which the trolley will operate. hook suspended hoist: suspension of a hoist from a trolley or rigid by of a hook at the normal operating conditions: conditions during which top of the hoist (see Fig. I). a hoist is performing functions within the scope of the orig
43、inal design. idler sprocket: a device free to rotate, that changes the direction of the load chain. This device is sometimes overloud: any load greater than the rated load. called idler wheel, idler sheave, pocket wheel, or chain parts (lines): number of lines of chain supporting the wheel. load blo
44、ck or hook. lift: the maximum vertical distance through which the load hook can travel, and the total allowable hook movement between its upper limit of travel and its lower limit of travel (see Fig. I). Lifing devices: devices that are not normally reeved into the hoist chain(s) such as supplementa
45、l devices used for hanging or attaching to the load. The weight of these devices is to be considered part of the load to be lifted. load: the total imposed weight on the load block or load hook including the weight of lifting devices. qualijied person: a person who, by possession of a recognized deg
46、ree, certificate of professional standing, or who by extensive knowledge, training, and experience has successfully demonstrated the ability to solve or resolve problems relating to the subject matter and work. rated load: the maximum load for which a hoist or trolley is designated by the manufactur
47、er. reach: the distance from the saddle of load hook at its lower limit of lift to the upper point of the headroom measurement. Reach is equal to lift plus headroom (see Fig. I). 3 Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitt
48、ed without license from IHS-,-,-ASME HST-2-1999 reeving: a system in which the load chain travels around sprockets. shall: the word shall indicates that adheren,ce to the particular requirement is necessary to conform to the Standard. should: the word should indicates a recommendation, the use of wh
49、ich depends on the facts in each situation. trolley: a wheeled mechanism from- which a hoist is suspended to provide horizontal motion of the hoist along a beam. trolley suspended hoist: a hoist suspended from a trolley. A .hoist can be connected to a trolley by hook or clevis, or the hoist can be integral with the trolley (see Fig: I). 2 PERFORMANCE 2.1 General All eq
