CN107651594B - Support load testing device for winch and testing method thereof - Google Patents
Support load testing device for winch and testing method thereof Download PDFInfo
- Publication number
- CN107651594B CN107651594B CN201710902995.4A CN201710902995A CN107651594B CN 107651594 B CN107651594 B CN 107651594B CN 201710902995 A CN201710902995 A CN 201710902995A CN 107651594 B CN107651594 B CN 107651594B
- Authority
- CN
- China
- Prior art keywords
- winch
- jacking
- extension plate
- hydraulic cylinder
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a supporting load testing device for a winch, which comprises a winding drum, a belt brake for braking the winding drum, an extension plate, a shear block, a jacking hydraulic cylinder, a jacking winch seat and a bottom plate for bearing and fixing the winch, wherein the extension plate is arranged on the extension plate; the front side edge of the extension plate is connected with the reel wall of the reel, the lower end of the extension plate is connected with the upper end of the jacking winch seat, the lower end of the jacking winch seat is propped against the upper end of the jacking hydraulic cylinder, and the lower end of the jacking hydraulic cylinder is connected to the bottom plate; the invention also discloses a method for testing the winch supporting load. The invention can save a great deal of complicated preliminary preparation work, and efficiently and simply test the support load of the winch.
Description
Technical Field
The present invention relates to a device for testing a supporting load capacity of a winch, and more particularly, to a supporting load testing apparatus for a winch and a testing method thereof.
Background
Winch is widely used in large-scale equipment in the industries of ocean engineering, electric power, mine, cement, steel, chemical industry, paper making and the like, and when the winch vertically lifts heavy objects as a crane, a belt brake is required to be equipped for safety according to design specifications.
The support load test is to detect whether the band brake has complete braking capability under winch support load. The design specification of the winch support load is generally defined as 80% of the breaking force of the steel wire rope, so the pulling force value is very large, the belt brake is used for providing the brake for supporting the load, and the capability of the belt brake is required to be tested before the winch leaves the factory so as to check whether the support load of the winch meets the design requirement.
The existing winch support load testing process is very complicated, as shown in fig. 1, a testing site with a large area is needed, four independent bases 1 are fixed on the testing site, a winch 2 is fixed on the bases 1, an A-shaped steel frame 3 is fixed on the testing site, after a steel wire rope 4 on the winch 2 bypasses the steel frame 3, a standard counterweight 5 is tied at the rope end of the steel wire rope 4, the winch 2 is started to lift the standard counterweight 5, after the standard counterweight 5 is lifted to a certain height, a belt brake 6 is closed, a power supply is turned off, then whether the belt brake 6 has a slipping phenomenon or not is observed, and if no slipping occurs, the support load capacity of the winch 2 is qualified.
However, the above test method has the following disadvantages:
1. the space required for the test site is large;
2. the winch is transported to a testing site from a production workshop, and large-scale transporting equipment is required to be used;
3. the winch has different sizes, and large financial resources, material resources and manpower are consumed to manufacture bases and steel wire ropes with different sizes;
4. the support load of each specification winch is different, and standard counterweights with different specifications are required to be equipped;
5. because the winch support load test adopts a lifting test, and the standard counterweight has large weight, the potential safety hazard exists.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a support load testing device for a winch and a testing method thereof, which can save a great deal of complicated earlier-stage preparation work and efficiently and simply test support load of a winch.
In order to achieve the above purpose, the invention adopts the following technical scheme:
in one aspect, a support load testing device for a winch comprises a winding drum, a belt brake for braking the winding drum, an extension plate, a shear block, a jacking hydraulic cylinder, a jacking winch seat and a bottom plate for bearing and fixing the winch;
the front side edge of the extension plate is connected with the reel wall of the reel, the lower end of the extension plate is connected with the upper end of the jacking winch seat, the lower end of the jacking winch seat is propped against the upper end of the jacking hydraulic cylinder, and the lower end of the jacking hydraulic cylinder is connected to the bottom plate;
the shear block is also connected to the wall of the winding drum and is arranged above the extension plate.
The drum wall is provided with a plurality of screw holes, and the front side edge of the extension plate is also provided with a plurality of screw holes with corresponding specification with the screw holes on the drum wall and connected with the screw holes through bolts and nuts.
The extension plate is provided with a fan-shaped extension plate.
The bottom plate is fixed on the bottom plate through the hook block.
The bottom plate is a steel plate.
The hook block is provided with an L-shaped hook block.
The shear block is welded on the wall of the drum.
The lower end of the extension plate is connected with the upper end of the jacking winch seat through a pin shaft.
In another aspect, a method for winch support load testing includes the steps of:
s1, a plurality of screw holes are formed in a drum wall, and a plurality of screw holes with the specification corresponding to the screw holes in the drum wall are also formed in the front side edge of the extension plate;
s2, connecting and assembling the lower end of the extension plate with the upper end of the jacking winch seat through a pin shaft;
s3, paving a steel plate on the ground in a workshop, and assembling a winch on the steel plate;
s4, clamping a bottom plate of the winch by using an L-shaped hook block, and welding and fixing the bottom plate;
s5, connecting the front side edge of the extension plate to the reel wall by using bolts and nuts to enable the jacking winch seat to vertically downwards;
s6, welding the shearing resistant block on the wall of the winding drum and arranging the shearing resistant block above the extension plate;
s7, calculating a jacking force F2 of the jacking hydraulic cylinder, wherein F2=F1 b/a, F1 is a supporting load tension, b is a rope outlet radius of the steel wire rope, and a is a distance from a jacking point of the jacking hydraulic cylinder to the center of the winding drum;
s8, closing the belt brake, jacking the hydraulic cylinder to pressurize, applying a jacking force to the lower end of the jacking winch, stopping pressurizing when the jacking force reaches an F2 value, maintaining the pressure for a plurality of seconds, and observing whether the belt brake has a slipping phenomenon or not;
s9, if the belt brake does not slip, the support load test result is qualified.
In the step S8, the dwell time is 50S-80S.
In the technical scheme, the support load testing device for the winch and the testing method thereof provided by the invention have the following beneficial effects:
1. the invention omits a great deal of complicated preliminary preparation work, such as a large-mass counterweight, a steel wire rope, a large-size base, large-size carrying equipment for transporting the winch from an assembly workshop to a test site, and the like;
2. the invention greatly reduces the test field, and can complete the test only in a space slightly larger than the winch body;
3. the invention is applicable to various winch support load tests and can be repeatedly utilized, thereby greatly saving cost and time;
4. the shearing resistant block effectively improves the stress condition of the connecting bolt between the fan-shaped extension plate and the winding drum wall;
5. the invention is efficient, simple and practical, and eliminates unsafe hidden trouble.
Drawings
FIG. 1 is a schematic diagram of a prior art support load test;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic view of the direction c of FIG. 2;
fig. 5 is a schematic view of the direction d in fig. 2.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
Referring to fig. 2 to 5, the supporting load testing device for a winch according to the present invention includes a reel 7, a belt brake 8 for braking the reel 7, an extension plate 9, a shear block 10, a lifting hydraulic cylinder 11, a lifting winch seat 12, and a bottom plate 13 for carrying and fixing the winch.
Preferably, the front side edge of the extension plate 9 is connected with the drum wall 14 of the drum 7, the angle of the lower end of the extension plate 9 is connected with the upper end of the jacking winch 12 through a pin shaft 15 to form movable connection, the lower end of the jacking winch 12 is propped against a piston rod at the upper end of the jacking hydraulic cylinder 11 to receive the jacking force and transmit the jacking force to the extension plate 9 and the drum 7, and the lower end of the jacking hydraulic cylinder 11 is fixedly connected to the bottom plate 13.
Preferably, the drum wall 14 is provided with a plurality of reserved screw holes, and the front side edge of the extension plate 9 is also provided with a plurality of screw holes with corresponding specification with the screw holes on the drum wall 14 and connected with the screw holes by bolts and nuts.
Preferably, the shear block 10 is welded to the drum wall 14 of the drum 7 and is disposed above the extension plate 9 to contact with the edge of the extension plate 9, so as to improve the stress condition of the connecting bolt between the extension plate 9 and the drum wall 14.
Preferably, the extension plate 9 is a fan-shaped extension plate, which can be suitable for the stress of the jacking force.
Preferably, the bottom plate of the winch is fixed to the bottom plate by L-shaped hook blocks 16.
Preferably, the bottom plate 13 is a steel plate for carrying a winch.
The invention provides a method for testing winch supporting load, which comprises the following steps:
s1, a plurality of reserved screw holes are formed in a drum wall 14, an extension plate 9 is manufactured, and a plurality of screw holes with the specification corresponding to the screw holes in the drum wall 14 are also formed in the front side edge of the extension plate 9;
s2, connecting and assembling a corner at the lower end of the extension plate 9 with the upper end of the jacking winch seat 12 through a pin shaft 15 to form a standard component, wherein the standard component can be reused;
s3, paving a steel plate on the ground in a workshop to serve as a bottom plate 13, and assembling the winch on the steel plate;
s4, clamping a foot plate of the winch by using an L-shaped hook block 16, and welding and fixing the foot plate on the bottom plate 13, wherein the hook block 16 can be repeatedly used;
s5, connecting the front side edge of the extension plate 9 to the drum wall 14 by bolts and nuts to enable the jacking winch seat 12 to vertically downwards;
s6, welding the shear block 10 on a drum wall 25 of the drum 7, and arranging the shear block above the extension plate 9 to be in contact with the edge of the extension plate 9;
s7, calculating a jacking force F2 of the jacking hydraulic cylinder 11, wherein F2=F1 is calculated to be b/a (the same torque is guaranteed to be applied to the belt brake 8), F1 is a supporting load tension (the value is the broken end tension of steel wire ropes with different specifications and can be referred to fixedly, F1 is 80% of the broken force), b is the rope outgoing radius of the steel wire rope (see reference numeral b in fig. 1), and a is the distance from the jacking point of the jacking hydraulic cylinder to the center of a winding drum (see reference numeral a in fig. 2);
s8, closing the belt brake 8, pressing the lifting hydraulic cylinder 11, applying a lifting force to the lower end of the lifting winch seat 12, stopping pressing when the lifting force reaches an F2 value, maintaining the pressure for about one minute (50 s-80 s), and observing whether the belt brake 8 has a slipping phenomenon or not;
s9, if the belt brake 8 does not slip, the supporting load test result is qualified.
In summary, after the winch is directly assembled on the ground which can be born by a paved steel plate in a workshop, the L-shaped hook block is used for fixing the winch footing plate on the steel ladle ground, the belt brake is closed, a fan-shaped extension plate is arranged on the wall of the winding drum, one corner of the extension plate is connected with a lifting winch seat, the lifting winch seat is lifted by a lifting hydraulic cylinder, the lifting force is calculated according to theoretical conversion, and whether the belt brake slips or not is observed.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the invention, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the invention as long as they fall within the true spirit of the invention.
Claims (6)
1. The supporting load testing device for the winch comprises a winding drum and a belt brake for braking the winding drum, and is characterized by further comprising an extension plate, a shear block, a jacking hydraulic cylinder, a jacking winch seat and a bottom plate for bearing and fixing the winch;
the front side edge of the extension plate is connected with the reel wall of the reel, the lower end of the extension plate is connected with the upper end of the jacking winch seat, the lower end of the jacking winch seat is propped against the upper end of the jacking hydraulic cylinder, and the lower end of the jacking hydraulic cylinder is connected to the bottom plate;
the shear block is also connected to the wall of the winding drum and is arranged above the extension plate,
the drum wall is provided with a plurality of screw holes, the front side edge of the extension plate is also provided with a plurality of screw holes with the specification corresponding to the screw holes on the drum wall and connected with each other through bolts and nuts,
the lower end of the extension plate is connected with the upper end of the jacking winch seat through a pin shaft,
the bottom plate of the winch is fixed on the bottom plate through the hook block,
the shear block is welded on the wall of the drum,
the support load testing device for a winch further comprises a closing band brake,
and the jacking hydraulic cylinder is used for pressurizing, the lower end of the jacking winch seat is subjected to jacking force, when the jacking force reaches an F2 value, the pressurizing is stopped, the pressure is maintained for one minute, whether the belt brake has a slipping phenomenon or not is observed, if the belt brake does not have the slipping phenomenon, a supporting load test result is qualified, wherein F2=F1 b/a is represented, F1 is supporting load pulling force, a is the distance from the jacking point of the jacking hydraulic cylinder to the center of the winding drum, and b is the rope outlet radius of the steel wire rope.
2. A support load testing apparatus for a winch according to claim 1, wherein said extension plate is provided in the form of a fan-shaped extension plate.
3. A support load testing apparatus for a winch according to claim 1, wherein said base plate is a steel plate.
4. A support load testing apparatus for a winch according to claim 1, wherein said hook block is provided in the form of an L-shaped hook block.
5. A method for testing a winch support load testing apparatus according to any one of claims 1-4, comprising the steps of:
s1, a plurality of screw holes are formed in a drum wall, and a plurality of screw holes with the specification corresponding to the screw holes in the drum wall are also formed in the front side edge of the extension plate;
s2, connecting and assembling the lower end of the extension plate with the upper end of the jacking winch seat through a pin shaft;
s3, paving a steel plate on the ground in a workshop, and assembling a winch on the steel plate;
s4, clamping a bottom plate of the winch by using an L-shaped hook block, and welding and fixing the bottom plate;
s5, connecting the front side edge of the extension plate to the reel wall by using bolts and nuts to enable the jacking winch seat to vertically downwards;
s6, welding the shearing resistant block on the wall of the winding drum and arranging the shearing resistant block above the extension plate;
s7, calculating a jacking force F2 of the jacking hydraulic cylinder, wherein F2=F1 b/a, F1 is a supporting load tension, b is a rope outlet radius of the steel wire rope, and a is a distance from a jacking point of the jacking hydraulic cylinder to the center of the winding drum;
s8, closing the belt brake, jacking the hydraulic cylinder to pressurize, applying a jacking force to the lower end of the jacking winch, stopping pressurizing when the jacking force reaches an F2 value, maintaining the pressure for a plurality of seconds, and observing whether the belt brake has a slipping phenomenon or not;
s9, if the belt brake does not slip, the support load test result is qualified.
6. The method for winch support load testing of claim 5, wherein in said step S8, the dwell time is 50S to 80S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710902995.4A CN107651594B (en) | 2017-09-29 | 2017-09-29 | Support load testing device for winch and testing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710902995.4A CN107651594B (en) | 2017-09-29 | 2017-09-29 | Support load testing device for winch and testing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107651594A CN107651594A (en) | 2018-02-02 |
| CN107651594B true CN107651594B (en) | 2023-06-20 |
Family
ID=61116724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710902995.4A Active CN107651594B (en) | 2017-09-29 | 2017-09-29 | Support load testing device for winch and testing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107651594B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205428B (en) * | 2018-10-10 | 2019-10-11 | 中国矿业大学 | Electrodeless rope type vertical shaft hoisting joint debugging test device and method |
| CN113716476A (en) * | 2020-05-26 | 2021-11-30 | 李伟伟 | Petroleum drilling winch rope clamping device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5660840B2 (en) * | 2010-10-07 | 2015-01-28 | 日本ケーブル株式会社 | Braking test device for rope pulling vehicle |
| CN102221477A (en) * | 2011-03-31 | 2011-10-19 | 煤炭科学研究总院上海分院 | Winch detection equipment used in coal mine |
| CN103376204A (en) * | 2012-04-26 | 2013-10-30 | 上海国靖机械设备有限公司 | Brake testing device of coiling block of anchor winch |
| CN203624942U (en) * | 2013-11-25 | 2014-06-04 | 南通力威机械有限公司 | Belt brake of winch |
| CN203811407U (en) * | 2014-05-14 | 2014-09-03 | 苏兆兴 | Mining winch performance testing device |
| CN106198088A (en) * | 2016-08-29 | 2016-12-07 | 武汉船用机械有限责任公司 | A kind of anchor capstan deceleration loading pilot system |
| CN207276108U (en) * | 2017-09-29 | 2018-04-27 | 上海振华重工(集团)股份有限公司 | A kind of holding load test device for winch |
-
2017
- 2017-09-29 CN CN201710902995.4A patent/CN107651594B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107651594A (en) | 2018-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103883129B (en) | A kind of steel structural roof beam installation method | |
| CN107651594B (en) | Support load testing device for winch and testing method thereof | |
| CN214167082U (en) | Special lifting device for pressure vessel | |
| CN114852866A (en) | Detection apparatus for electric block | |
| CN102659017A (en) | Steel column hoisting system | |
| CN207276108U (en) | A kind of holding load test device for winch | |
| CN205772794U (en) | A kind of suspender of revealing all the details of concrete prefabricated element | |
| CN204454235U (en) | A kind of novel many suspension centres equalizing bar device | |
| CN108545629B (en) | Utilize the construction method of tower crane lifting girder truss | |
| CN105366559A (en) | Small hoisting machine fixed on channel steel framework | |
| CN210236945U (en) | Counterweight device matched with pulley block for use | |
| CN202558444U (en) | Steel penstock hoisting balance beam device | |
| CN103884640B (en) | A kind of prestress pipe friction resistance test device and installation method thereof | |
| CN209538038U (en) | A kind of cable tension device | |
| CN106861882A (en) | The method that ball mill has bad luck lifting in building | |
| CN105113426A (en) | Cable connector and steel truss arch bridge cable connecting method | |
| CN206511798U (en) | The special hanger of large-scale component pallet | |
| CN206599375U (en) | A kind of door type steel structure hoisting instrument | |
| CN104692241A (en) | Multipurpose gantry crane rapidly-replaced hook group | |
| CN213707572U (en) | Hanging equipment used outside closed space | |
| CN204643648U (en) | Pylon and hanging basket thereof | |
| CN202912546U (en) | Special hoisting tool for grinding roller supporting roll | |
| CN219890738U (en) | Static traction test equipment for elevator without load | |
| CN205151577U (en) | Fix small -size hoisting machine on steel support of groove | |
| CN204416914U (en) | The hook assembly of high pedestal jib crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |