WO2013060025A1

WO2013060025A1 - Test equipment for hoisting mechanism

Info

Publication number: WO2013060025A1
Application number: PCT/CN2011/081520
Authority: WO
Inventors: 匡爱武; 李宇力; 张劲; 吴江; 陈华; 颜祯; 左春庚; 李美香; 颜剑
Original assignee: 中联重科股份有限公司; 湖南中联重科专用车有限责任公司
Priority date: 2011-10-28
Filing date: 2011-10-28
Publication date: 2013-05-02

Abstract

Disclosed is test equipment for a hoisting mechanism. The test equipment comprises: a base (100); a hoisting mechanism; and a tower (200) with a pulley mechanism and erected vertically on the base (100). The hoisting mechanism comprises: a rotational drive apparatus (300) installed on the base (100) and located adjacent to a first side of the tower (200); a steel cable (400), one end of which cable is connected to the rotational drive apparatus, the cable being wound around the pulley mechanism of the tower (200) and extending to an opposite second side of the tower (200); a weight (500) suspended from the other end of the steel cable (400); and a controller electrically connected to the rotational drive apparatus (300). Various working conditions for a hoisting mechanism can be tested on the test equipment by varying different weights and/or selecting different operating states for the rotational drive apparatus, thereby overcoming the restrictions of using a single overall unit, reducing test costs and increasing test efficiency.

Description

Test equipment for winch

Technical field

The present invention relates to a comprehensive test platform, and in particular to a test apparatus for a hoisting mechanism. Background technique

In engineering practice, hoisting mechanisms have a wide range of applications, such as the extensive use of various tonnage hoisting mechanisms in various lifting equipment.

At present, the hoisting mechanism is usually installed directly on the mounting position of the specific machine before being installed in the applied work place for various tests. However, this traditional test method is subject to the specific working conditions of the whole machine, so that it is not possible to flexibly adjust various working conditions to test the hoisting mechanism, often requiring different working conditions on different machines. The hoisting mechanism conducts test tests, resulting in higher test costs and lower work efficiency.

Therefore, how to realize a test device capable of comprehensively testing the hoisting mechanism to test the hoisting mechanism under different working conditions has become a technical problem to be solved in the field. Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a test apparatus for a hoisting mechanism in which the hoisting mechanism can perform comprehensive testing of the hoisting mechanism under different operating conditions.

In order to achieve the above object, the present invention provides a test apparatus for a hoisting mechanism, the test apparatus comprising: a base, a hoisting mechanism, and a tower vertically set up on the base and having a pulley mechanism, the hoisting mechanism comprising: a rotary drive on the base adjacent to the first side of the tower, one end coupled to the rotary drive and bypassing the pulley mechanism of the tower to extend to the opposite second side of the tower a wire rope, suspended by the other end of the wire rope A controller that is electrically connected to the rotary drive.

Preferably, the rotary driving device includes a rotating cylinder and a driver electrically connected to the controller and capable of driving the rotating drum, the one end of the wire rope being fixed on the rotating drum and at least the wire rope A part is wound around the rotating drum.

Preferably, the rotary drive device is a plurality, and the drive of each rotary drive device is a different type of drive.

Preferably, the testing device further comprises a guiding fixed pulley capable of guiding the wire rope, the guiding fixed pulley is disposed on the base and located between the rotary driving device and the tower, the wire rope passes the The lower side of the guide pulley extends upward.

Preferably, the position of the guide fixed pulley on the base is adjustable.

Preferably, the portion of the wire rope that extends upward through the guiding of the guide pulley extends in a vertical direction.

Preferably, the pulley mechanism comprises a first fixed pulley, a second fixed pulley and a tower fixed pulley, the first fixed pulley is located at the top of the tower and is disposed on the first side of the tower, The second fixed pulley is located at the top of the tower and is disposed on the second side of the tower, the tower top pulley is located at the top of the tower and is disposed on the first fixed pulley and In an intermediate position of the second fixed pulley, the wire rope extends around the first fixed pulley, the second fixed pulley and the top set pulley.

Preferably, the testing apparatus further includes load detecting means for detecting a load of the wire rope, the load detecting means is disposed at a top of the tower, the controller is electrically connected to the load detecting means, and The detection result of the load detecting device controls the operation or the stop of the drive.

Preferably, the test apparatus includes a mounting bracket fixedly disposed at the top of the tower, the tower top pulley being mounted on the mounting bracket by the load detecting device.

Preferably, the testing device further comprises an anti-sanding device disposed on the second side of the tower and below the second fixed pulley, the wire rope passing the second A pulley is passed through the anti-crushing device to extend downwardly to the counterweight.

Preferably, the test apparatus further includes a pedestal pulley mechanism including a support frame and a pedestal pulley, the support frame being disposed at a middle portion of the tower and from the first of the tower The side protrusions are supported by the end of the support frame, and the wire rope extends around the support pulley.

Preferably, the mounting frame is adjustable in a vertical direction at a mounting position of the first side of the tower; and/or the support bracket protrudes from the first side of the tower The height is adjustable.

Preferably, the testing device further includes a guiding member and a connecting rod, the guiding member is disposed on a second side of the tower in a vertical direction, and the first end of the connecting rod is connected to the counterweight, A second end of the link is slidably coupled to the guide.

Preferably, the length of the link is adjustable.

Preferably, the link includes a first rod having the first end, a second rod having the second end, and connected to the first rod by one of a left-handed thread and a right-handed thread and passed through the right The other of the threaded and left-handed threads is coupled to the intermediate rod of the second rod.

Preferably, the intermediate rod is a threaded tube.

Preferably, the connecting rod is telescopic.

Preferably, the guiding member is a guiding wire rope, and the second end of the connecting rod is formed in a ring shape, and the guiding wire rope extends through the annular shape.

Through the above technical solution, by adjusting different weights and/or selecting different operating states of the rotary driving device, the hoisting mechanism can be tested under various working conditions on the testing device, thereby breaking the limitation of a single machine. , to reduce the cost of the test and improve the efficiency of the test, thereby achieving the purpose of the invention.

Other features and advantages of the invention will be described in detail in the detailed description which follows. DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are in the In the drawing:

1 is a schematic view showing the overall structure of a testing device of a hoisting mechanism according to the present invention; FIG. 2 is a schematic view showing the arrangement of a load detecting device of FIG.

Figure 3 is a schematic structural view of the strut pulley mechanism of Figure 1;

Fig. 4 is a schematic view showing the structure of a preferred embodiment of the connecting rod connecting the guide member and the weight in Fig. 1. detailed description

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are intended to be illustrative and not restrictive.

In the present invention, the terms "upper and lower" as used herein generally refer to the orientation of the test apparatus of the present invention after the installation of the test apparatus of the present invention is not described.

As shown in FIG. 1, the testing apparatus of the hoisting mechanism according to the present invention includes: a base 100, a hoisting mechanism, and a tower 200 vertically set up on the base 100 and having a pulley mechanism, the hoisting mechanism comprising: a rotary drive device 300 on the base 100 and located adjacent to the first side of the tower 200, one end of which is coupled to the rotary drive device 300 and extends around the pulley mechanism of the tower 200 to extend relative to the tower 200 The second side of the wire rope 400, the counterweight 500 suspended by the other end of the wire rope 300, and a controller electrically coupled to the rotary drive unit 300.

The base 100 provides a mounting basis for the above test equipment. Typically the base 100 is a foundation to ensure a reliable and secure mounting of the test equipment. The tower 200 is fixedly positioned vertically on the base 100, and the tower 200 has a pulley mechanism to provide space for the winding extension of the wire rope of the hoisting mechanism. The tower 200 is usually assembled by modularization (the tower 200 generally includes a plurality of standard sections and a top lifting frame), so that the height of the tower 200 and the like can be adjusted according to actual needs. Count. Assembly of the tower 200 is well known in the art and will not be described in detail herein. As shown in FIG. 2, the hoisting mechanism includes: a rotary driving device 300 disposed on the base 100 and located adjacent to the first side of the tower 200. The rotary drive unit 300 is fixedly disposed on the base 100, and the rotational drive unit 300 is mounted adjacent to the tower 200 to facilitate the extension of the wire rope 400 to the pulley mechanism of the tower 200.

One end of the wire rope 400 is connected to the rotary driving device so as to be pulled by the rotary driving device, and the other end of the wire rope 400 is connected to the counterweight 500, and the counterweight 500 is raised and lowered by the rotation of the rotary driving device.

A controller (not shown) is electrically coupled to the rotary drive to control the action of the rotary drive, such as starting, accelerating, decelerating, stopping, and the like. The controller may be a PLC, a microcontroller or a microcomputer.

As can be seen from the above description of the test device of the hoisting mechanism according to the invention, the hoisting mechanism can be operated under various operating conditions on the test device by adjusting different counterweights and/or selecting different operating states of the rotary drive. The detection, thereby breaking through the limitations of a single machine, reducing the cost of testing and improving the efficiency of the test, thereby achieving the purpose of the invention.

The rotary driving device 300 may include a rotating drum 301 to allow the one end of the wire rope 400 to be fixed to the rotating drum 301 and to enable at least a portion of the wire rope 400 to be wound around the rotating drum 301. The driver 302 is used to drive the rotation of the rotary cylinder 301 to effect winding and loosening of the wire rope 400. The actuator 302 can be various devices capable of providing rotational power to drive the rotary drum 301 to rotate, such as an electric motor, a hydraulic motor or an engine.

The rotary drive device may be one, but preferably, as shown in FIG. 1, the rotary drive device 300 is plural, and the drive 302 of each rotary drive device is a different type of drive (for example, a drive of a rotary drive device) It is an electric motor, and the drive of the other rotary drive is a hydraulic motor), so that the hoisting mechanism can be tested under different working conditions.

In order to facilitate guiding the wire rope 400, as shown in FIG. 1, preferably, the testing device further includes a guiding fixed pulley 303 capable of guiding the wire rope 400, the guiding fixed pulley 303 being disposed at the The base 100 is located between the rotary driving device 300 and the tower 200, and the wire rope 400 extends upward through the lower side of the guide fixed pulley 303. The guide pulley 303 can guide the extending direction of the wire rope 400 to extend the wire rope 400 along a predetermined path to adapt to different operating conditions.

In order to adjust the use condition of the test hoisting mechanism more flexibly, preferably, the position of the guide fixed pulley 303 disposed on the base 100 is adjustable, so that the extension path of the wire rope 400 can also be different according to different work. It was adjusted.

Preferably, as shown in Fig. 1, the portion of the wire rope 400 that extends upward through the guiding of the guide pulley 303 extends in the vertical direction. However, the present invention is not limited thereto, and the portion in which the wire rope 400 is extended upward by the guide of the guide pulley 303 may also extend in a direction inclined in the vertical direction.

As described above, the tower 200 is provided with a pulley mechanism, which may be a fixed pulley, but preferably has a plurality of pulleys. As shown in FIG. 1, the pulley mechanism of the tower 200 includes a first fixed a pulley 201, a second fixed pulley 202 and a tower top pulley 203, the first fixed pulley 201 is located at the top of the tower 200 and disposed on the first side of the tower 200, the second fixed A pulley 202 is located at the top of the tower 200 and disposed on the second side of the tower 200, the tower top pulley 203 is located at the top of the tower 200 and disposed on the first fixed pulley 201 And the intermediate position of the second fixed pulley 202, the wire rope 400 extends around the first fixed pulley 201, the second fixed pulley 202 and the tower top fixed pulley 203. With this sheave mechanism, the load of the wire rope 400 can be more uniformly supported, so that the wire rope 400 is smooth and safe during the movement.

Of course, the arrangement of the pulley mechanism is not limited thereto, and for example, more pulleys, such as four, may be provided.

Preferably, as shown in FIG. 1, the test apparatus further includes a load detecting device 206 for detecting a load of the wire rope 400, the load detecting device 206 being disposed at the top of the tower 200, the controller Electrically connected to the load detecting device 206, and according to the load check The detection result of the measuring device 206 controls the operation or stop of the driver 302.

The load detecting means 206 obtains the load information of the wire rope 400 by directly or indirectly detecting the force of the wire rope 400, and transmits an electric signal indicating the load information to the controller. The controller then controls the operation or stop of the driver 302 based on the electrical signal. For example, if the load detecting device 206 determines an overload, the controller may decelerate or stop the drive 302; if the load detecting device 206 determines that it is not overloaded, the controller may cause the drive 302 to remain in normal operation.

The load detecting device 206 may be various sensors capable of detecting the force of the wire rope 400, such as a weight limiter.

The load detecting device 206 can have various mounting manners. As shown in FIGS. 1 and 2, the testing device includes a mounting bracket 204 fixedly disposed on the top of the tower 200, and the tower top pulley 203 passes the load detection. Device 206 is mounted on the mounting bracket 204. Therefore, the load of the wire rope 400 is transmitted to the tower top pulley 203, and in the process of being transmitted to the tower 200 by the load detecting device 206, the load detecting device 206 can be allowed to detect the load of the wire rope 400.

Preferably, as shown in FIG. 1, the test apparatus further includes an anti-shooting device 205 disposed on the second side of the tower 200 (ie, the side where the counterweight 500 is located) and Located below the second fixed pulley 202, the wire rope 400 passes the second fixed pulley 202 and extends downward through the anti-spinning device 205 to the counterweight 500.

By providing the anti-shocking device 205, it is possible to prevent the position of the counterweight 500 from being too high and posing a danger. The anti-shooting device can have a variety of configurations, such as a platform or a flat plate or frame structure extending from the tower 200, as long as the wire rope 400 can be allowed to pass without affecting the movement of the wire rope 400.

Further, a travel switch (not shown) is provided on the tower 200, and the travel switch is electrically connected to the controller for detecting the end position of the weight of the counterweight 500, thereby providing a safety protection function. The travel switch can be a variety of conventional travel switches.

Preferably, as shown in FIGS. 1 and 3, the test apparatus further includes a pedestal pulley mechanism 600, The bracket pulley mechanism 600 includes a support frame 601 and a bracket pulley 602 disposed at a middle portion of the tower 200 and protruding from the first side of the tower 200, the bracket pulley 602 is supported by the end of the support frame 601, and the wire rope 400 extends around the bracket pulley 602.

The support frame 601 of the frame pulley mechanism 600 is disposed in the middle of the first side of the tower 200 (shown in Fig. 1) and protrudes outward. The wire rope 400 bypasses the bracket pulley 602 on the outer side or the inner side of the bracket pulley 602, so that by adjusting the orientation and/or size parameters of the frame pulley mechanism 600, the rope exit angle of the wire rope 400 can be adjusted. In the orientation shown in Fig. 1, the rope exit angle refers to an angle between the portion of the wire rope that extends beyond the frame pulley mechanism 600 and the vertical direction. By adjusting the rope angle, it is possible to simulate the working condition of the hoisting mechanism under various working conditions, so that the hoisting mechanism can be more fully tested.

The adjustment of the frame pulley mechanism 600 can be in a variety of ways. For example, a frame pulley mechanism 600 of different size parameters can be selected. Preferably, however, in order to more flexibly achieve the adjustment of the rope angle, the mounting frame 601 is adjustable in the vertical direction at the mounting position of the first side of the tower 200; and/or The height of the support frame 601 protruding from the first side of the tower 200 is adjustable (for example, the support frame 601 includes a three-bar linkage mechanism that can adjust the height, or the support frame 601 can be driven by a mobile device to move The power of the mobile device can be derived from a power source such as an electric motor or a hydraulic motor.

As shown in FIG. 1, the counterweight 500 is suspended from the second side of the tower 200. In order to limit the degree of sway of the counterweight 500, to obtain the desired safety and reliability, preferably as shown in FIG. A guiding member 701 is disposed on a second side of the tower 200 in a vertical direction, and a first end of the connecting rod 702 is coupled to the counterweight 500, the connecting member A second end of the rod 702 is slidably coupled to the guide 701.

The guiding member 701 is disposed on the second side of the tower 200 in the vertical direction, that is, at a position adjacent to the weight 500, and the connecting rod 702 is connected between the guiding member 701 and the counterweight 500, and the connecting rod 702 can be Slidably connected to the guide member 701. Therefore, when the counterweight 500 moves up and down, The counterweight 500 can also be constrained by the link 702 to effectively limit the degree of sway of the counterweight 500 to within the allowable range.

Preferably, the length of the link 702 is adjustable to accommodate different operating conditions. Thus, the link 702 can be flexibly adapted to a variety of different test equipment, and the limit of the limit weight of the link 702 can be adjusted for the same test equipment.

The link 702 can be an elastic rod, such as a link made of an elastic material. Preferably, however, the link 702 is a rigid rod in order to be able to limit a large degree of sway.

The link 702 can be implemented in a variety of ways with an adjustable length.

As shown in FIG. 4, the link 702 includes a first rod 7021 having the first end, a second rod 7022 having the second end, and the second rod and the right-handed thread being coupled to the The first rod 7021 is coupled to the intermediate rod 7023 of the second rod 7022 by the other of the right-handed thread and the left-handed thread.

Since the intermediate rod 7023 is connected to the first rod 7021 by one of a left-hand thread and a right-hand thread, and is connected to the second rod 7022 by the other of the right-hand thread and the left-hand thread, thereby passing in different rotation directions By rotating the intermediate rod 7023, the overall length of the link 702 can be adjusted.

The intermediate rod 7023 may be a screw, and the portion where the first rod 7021 and the second rod 7022 are screwed to the intermediate rod 7023 is formed as a threaded sleeve or a threaded tube. Alternatively, the intermediate rod 7023 may be a threaded tube, and the portion of the first rod 7021 and the second rod 7022 that is threadedly coupled to the intermediate rod 7023 is formed as a threaded rod.

As another example, the link 702 can be telescopic (e.g., including a plurality of sleeves nested within each other). The guide member 701 may have various forms, for example, may be a chute disposed in a vertical direction, and the second end of the link 702 may be formed as a slider that is slidably restrained in the chute . Thus, as the counterweight 500 moves up and down, the first end of the link 702 moves with the counterweight 500, while the second end of the link 702 slides up and down along the chute within the chute.

Preferably, as shown in FIG. 1 and FIG. 4, the guiding member 701 is a guiding wire rope, and the second end of the connecting rod 702 is formed as a ring 703, and the guiding wire rope extends through the ring 703. Stretch. Thus, as the weight 500 moves up and down, the first end of the link 702 moves with the weight 500, while the ring 703 of the second end of the link 702 slides up and down along the guide wire. The guide member 701 is in the form of a guide wire rope to facilitate the sliding of the link 702.

The guide wire can be mounted on the tower 200 in a variety of ways, for example by means of a fixed hook or by means of binding.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments, and various simple modifications of the technical solutions of the present invention may be made within the scope of the technical idea of the present invention. These simple variations are within the scope of the invention.

It should be further noted that the specific technical features described in the above specific embodiments may be combined in any suitable manner without being contradictory, and are not limited to the reference relationship of the claims in the claims. . In order to avoid unnecessary repetition, the present invention will not be further described in various possible combinations.

In addition, any combination of various embodiments of the invention may be made, as long as it does not deviate from the idea of the invention, and should also be regarded as the disclosure of the invention.

Claims

Rights request

A test apparatus for a hoisting mechanism, characterized in that the test apparatus comprises: a base (100), a hoisting mechanism, and a tower (200) vertically set up on the base (100) and having a pulley mechanism, the hoisting mechanism The utility model comprises: a rotary driving device (300) disposed on the base (100) and located adjacent to the first side of the tower (200), one end of which is connected with the rotary driving device and bypasses the tower (200) a pulley mechanism extending to the opposite second side of the tower (200), a weight (500) suspended from the other end of the wire (300), and the rotary drive (300) Controller for electrical connection.

2. The testing device according to claim 1, wherein the rotary driving device

(300) comprising a rotating drum (301) and a driver (302) electrically connected to the controller and capable of driving the rotating drum (301), the one end of the wire rope (400) being fixed to the rotating drum ( 301) and winding at least a portion of the wire rope (400) on the rotating drum (301).

3. Testing device according to claim 2, characterized in that the number of rotary drives is a plurality, the drives (302) of each rotary drive being different types of drives.

4. The testing device according to claim 1, wherein the testing device further comprises a guiding fixed pulley (303) capable of guiding the wire rope (400), the guiding fixed pulley (303) being disposed on the base (100) is located between the rotary driving device (300) and the tower (200), and the wire rope (400) extends upward through the lower side of the guide fixed pulley (303).

5. Testing device according to claim 4, characterized in that the position of the guide fixed pulley (303) on the base (100) is adjustable.

The testing apparatus according to claim 4, characterized in that the portion of the wire rope (400) that extends upward through the guiding of the guide fixed pulley (303) extends in the vertical direction.

The testing device according to claim 1, wherein the pulley mechanism comprises a first fixed pulley (201), a second fixed pulley (202) and a tower fixed pulley (203), the first fixed A pulley (201) is located at the top of the tower (200) and is disposed on the first side of the tower (200), the second fixed pulley (202) is located at the top of the tower (200) And disposed on the second side of the tower (200), the tower top pulley (203) is located at the top of the tower (200) and is disposed on the first fixed pulley (201) and In the middle position of the second fixed pulley (202), the wire rope (400) extends around the first fixed pulley (201), the second fixed pulley (202) and the tower top fixed pulley (203).

8. The testing device according to claim 7, characterized in that the testing device further comprises load detecting means (206) for detecting the load of the wire rope (400), the load detecting means (206) being arranged in the At the top of the tower (200), the controller is electrically coupled to the load detecting device (206) and controls the operation or stop of the driver (302) based on the detection result of the load detecting device (206).

9. The testing device according to claim 8, characterized in that the testing device comprises a mounting bracket (204) fixedly arranged on the top of the tower (200), the tower top pulley (203) passing the A load detecting device (206) is mounted on the mounting bracket (204).

10. The testing device according to claim 7, characterized in that the testing device further comprises an anti-sanding device (205), which is arranged on the second side of the tower (200) And located below the second fixed pulley (202), the wire rope (400) passes through the second fixed pulley (202) and extends downward through the anti-shooting device (205) to the matching Heavy (500).

11. The testing apparatus according to claim 1, wherein the testing apparatus further comprises a pedestal pulley mechanism (600) including a support frame (601) and a pedestal pulley (602). The support frame (601) is disposed in the middle of the tower (200) and protrudes from the first side of the tower (200), and the bracket pulley (602) is supported by the support frame End support of (601), the wire rope (400) extending around the bracket pulley (602).

The testing device according to claim 11, characterized in that the mounting frame (601) is adjustable in a vertical direction at a mounting position of the first side of the tower (200); And/or the height at which the support frame (601) protrudes from the first side of the tower (200) is adjustable.

13. The testing device according to claim 1, wherein the testing device further comprises a guiding member (701) and a connecting rod (702), the guiding member (701) being disposed in the vertical direction on the tower a second side of the frame (200), a first end of the connecting rod (702) is coupled to the weight (500), and a second end of the connecting rod (702) is slidably coupled to the guiding member (701).

14. Testing apparatus according to claim 13, characterized in that the length of the connecting rod (702) is adjustable.

15. The testing device according to claim 14, wherein the connecting rod (702) comprises a first rod (7021) having the first end and a second rod (7022) having the second end And an intermediate rod connected to the first rod (7021) by one of a left-handed thread and a right-handed thread and connected to the second rod (7022) by the other of the right-handed thread and the left-handed thread (7023) ).

16. Test apparatus according to claim 15, characterized in that the intermediate rod (7023) is a threaded tube.

17. Testing apparatus according to claim 14, characterized in that the connecting rod (702) is telescopic.

The testing device according to any one of claims 13-17, wherein the guiding member (701) is a guiding wire rope, and the second end of the connecting rod (702) is formed into a ring shape ( 703), the guide wire extends through the ring (703).