CN220104480U - Brake testing device of field bridge crane - Google Patents
Brake testing device of field bridge crane Download PDFInfo
- Publication number
- CN220104480U CN220104480U CN202321657159.1U CN202321657159U CN220104480U CN 220104480 U CN220104480 U CN 220104480U CN 202321657159 U CN202321657159 U CN 202321657159U CN 220104480 U CN220104480 U CN 220104480U
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- brake
- bridge crane
- field bridge
- movable frame
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- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 238000005096 rolling process Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 15
- 210000001503 joint Anatomy 0.000 description 5
- 238000011056 performance test Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Control And Safety Of Cranes (AREA)
Abstract
The utility model discloses a field bridge crane braking testing device which is used for testing a brake of a field bridge crane. The field bridge crane braking testing device is small in structure, convenient to carry and transport and good in universality.
Description
Technical Field
The utility model relates to the field of field bridge cranes, in particular to a field bridge crane braking test device.
Background
On the field bridge crane, the brake is an important component, and the performance of the brake directly influences the safety and reliability of the field bridge crane, so that the performance of the brake needs to be tested frequently, and if the performance of the brake is found to be too much, the brake needs to be replaced in time so as not to influence the normal operation of the field bridge crane. The existing brake testing device is too heavy, inconvenient to carry or carry, and can only test the brake in some specific occasions, so that the universality is poor.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the field bridge crane brake testing device for testing the brake performance of the field bridge crane, which has the advantages of small structure, portability and good universality.
The utility model relates to a field bridge crane brake testing device which is used for testing a brake of a field bridge crane and comprises a base, a movable frame, a roller, an elastic piece and a driving component, wherein the movable frame is arranged on the base in a front-back sliding mode, the roller is rotatably arranged on the movable frame and is suitable for being in butt joint with one brake shoe of the brake, the driving component is arranged on the movable frame and is in driving connection with the roller, the elastic piece is arranged between the base and the movable frame and is suitable for applying forward pre-tightening action on the movable frame, a first butt joint part suitable for being in butt joint with the other brake shoe of the brake is arranged at the rear end of the base, and a second butt joint part suitable for being in butt joint with the bottom of the brake is arranged at the lower end of the base.
When the brake of the field bridge crane is required to be tested, the whole field bridge crane brake testing device is installed in the brake, specifically, the roller is abutted with one brake shoe of the brake, the first abutted part is abutted with the other brake shoe of the brake, the second abutted part is abutted with the bottom of the brake, then the brake is started, the two brake shoes of the brake apply certain clamping force to the field bridge crane brake testing device, and then the driving assembly drives the roller to rotate, so that the performance test of the brake is completed by judging whether the roller rotates or not or the rotating speed. The field bridge crane braking testing device can be integrally placed in the brake, is small in structure, is convenient to test the brake in various different occasions, and is good in universality and high in adaptability.
Further, the movable frame comprises a U-shaped installation part and a square guide part, the installation part is fixedly connected with the guide part, a guide hole matched with the guide part is formed in the base, the guide part is slidably installed in the guide hole, the roller comprises a rolling part and two rotating shaft parts positioned at two ends of the rolling part, the two rotating shaft parts are respectively fixedly connected with the rolling part, the rolling part is positioned in the installation part, the two rotating shaft parts are respectively rotatably connected with two side walls of the installation part, and the driving assembly is installed on the installation part.
Further, the drive assembly includes gear motor, first sprocket, second sprocket and chain, gear motor is located in the installation department and fix one of them on the lateral wall, gear motor's output shaft follows one of them the lateral wall stretches out outside the installation department, first sprocket is fixed on gear motor's output shaft, one of them pivot portion stretches out outside the installation department, the second sprocket is fixed stretch out outside the installation department on the pivot portion, the chain cover is established first sprocket with on the second sprocket.
Further, the gear motor is located obliquely below the rolling part and close to the guiding part.
Further, the elastic piece is a butterfly spring, and the butterfly spring is sleeved on the guide part and is located between the base and the installation part.
Drawings
FIG. 1 is a schematic side view of a field bridge crane brake testing apparatus according to an embodiment of the utility model;
FIG. 2 is a schematic side view of a field bridge crane brake test apparatus and brake in an embodiment of the utility model;
fig. 3 is a schematic top view of a field bridge crane brake testing apparatus (the base and spring are cross-sectional in order to better illustrate the structure and mating relationship of the parts) according to an embodiment of the utility model.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate an orientation or a positional relationship based on that shown in the drawings. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. In the description of the present specification, the terms "mounted," "configured to," "connected," and the like are to be construed broadly and may be mounted, configured to, or connected directly or indirectly, wherein "connected" may be a mechanical connection, an electrical connection, or a connection for transmitting power.
A field bridge crane brake test device for testing the performance of a brake of a field bridge crane according to an embodiment of the present utility model will be described with reference to fig. 1 to 3. The brake generally comprises two opposite brake shoes, namely a front brake shoe 210 and a rear brake shoe 220 in the embodiment of the utility model, and when the brake works, the two brake shoes are close to each other through a force application mechanism, and the two brake shoes clamp a braking component (such as a main shaft of a driving motor of a crane or a main shaft of a speed reducer) so as to realize a braking function.
The field bridge crane brake testing device of one embodiment of the utility model comprises: base 10, movable frame 20, cylinder 30, elastic member 40 and drive assembly. The movable frame 20 is slidably mounted on the base 10 back and forth, and the roller 30 is rotatably mounted on the movable frame 20, the roller 30 being adapted to abut one of the brake shoes, i.e. the roller 30 abuts one of the brake shoes during testing. The driving assembly is mounted on the movable frame 20 and is in driving connection with the drum 30, i.e. the driving assembly can drive the drum 30 to rotate, and the elastic member 40 is mounted between the base 10 and the movable frame 20 and is adapted to apply a forward pre-tightening action, such as a pre-tightening force, to the movable frame 20. The rear end of the base 10 is provided with a first abutment 12 adapted to abut against another brake shoe of the brake, and the lower end of the base 10 is provided with a second abutment 13 adapted to abut against the bottom of the brake.
When the brake is required to be tested, the whole field bridge crane brake test device is placed in the brake, the roller 30 is abutted against the front brake shoe 210 of the brake, the first abutting portion 12 is abutted against the rear brake shoe 220 of the brake, and the second abutting portion 13 is abutted against the bottom of the brake. Then, the brake is started, so that two brake shoes of the brake apply a certain clamping force to the field bridge crane brake testing device, a certain pressure is kept between the roller 30 and the front brake shoe 210, and the driving assembly drives the roller 30 to rotate, and as the pressure exists between the roller 30 and the front brake shoe 210, the pressure forms friction resistance for preventing the roller 30 from rotating, and the performance test of the brake can be completed by judging whether the roller 30 rotates or not or the rotating speed. For example, before a new brake is not used, a test can be performed, the clamping force, the driving force of the driving assembly and the rotating speed of the roller 30 are recorded, after the brake is used for a period of time, a test is performed again, so that the clamping force and the driving force are the same, the rotating speed of the roller 30 during the current test is recorded, and compared with the rotating speed of the roller 30 at the last time, the performance of the brake is judged according to the difference value of the two speeds. It should be noted that, according to the field bridge crane brake testing device provided by the embodiment of the utility model, a plurality of different testing methods can be adopted, so long as the testing of the brake performance can be completed, and the utility model is not limited to this.
The field bridge crane braking testing device can be integrally placed in the brake, is small in structure, is convenient to test the brake in various different occasions, and is good in universality and high in adaptability. For example, when the performance test is required for a brake which is already installed on a field bridge crane, the whole brake is not required to be detached, only the part between two brake shoes is required to be detached, and then the field bridge crane brake test device can be used for testing.
During the test, the roller 30 has a tendency to roll upward or downward relative to the front brake shoe 210 according to the different rotation directions of the roller 30, and in the present utility model, the rotation direction of the roller 30 can be controlled by the driving assembly, so that the roller 30 has a tendency to roll downward relative to the front brake shoe 210. By abutment of the second abutment 13 with the brake bottom, the roller 30 is prevented from rolling downwards, so that the position of the roller 30 relative to the front brake shoe 210 is unchanged, i.e. the roller 30 can only be rotated in situ or not. The rotation direction of the drum 30 is controlled by the driving unit, and the rotation direction of the speed reducing motor 51 of the driving unit described below is controlled.
In one embodiment, the movable frame 20 includes a U-shaped mounting portion 21 and a square guide portion 22, where the mounting portion 21 and the guide portion 22 are fixedly connected or integrally formed, the base 10 is provided with a guide hole 11 adapted to the guide portion 22, the guide portion 22 is slidably mounted in the guide hole 11, and the sliding of the movable frame 20 relative to the base 10 is achieved by the cooperation of the guide portion 22 and the guide hole 11, and in addition, since the guide portion 22 and the guide hole 11 are square, the guide portion 22 cannot rotate relative to the guide hole 11, i.e., the movable frame 20 cannot rotate relative to the base 10.
The roller 30 includes a rolling portion 31 and two shaft portions 32 located at two ends of the rolling portion 31, the two shaft portions 32 are respectively fixedly connected or integrally formed with the rolling portion 31, the rolling portion 31 is located in the mounting portion 21, and the two shaft portions 32 are respectively rotatably connected with two side walls of the mounting portion 21. The driving assembly is mounted on the mounting portion 21, specifically, the driving assembly comprises a gear motor 51, a first sprocket 52, a second sprocket 53 and a chain 54, the gear motor 51 is located in the mounting portion 21 and fixed on one of the side walls, an output shaft of the gear motor 51 extends out of the mounting portion 21 from one of the side walls, the first sprocket 52 is fixed on the output shaft of the gear motor 51, one of the rotating shaft portions 32 extends out of the mounting portion 21, the second sprocket 53 is fixedly connected with the rotating shaft portion 32 extending out of the mounting portion 21, and the chain 54 is sleeved on the first sprocket 52 and the second sprocket 53. When the gear motor 51 rotates, the first sprocket 52 is driven to rotate, the first sprocket 52 drives the second sprocket 53 to rotate through the chain 54, and the second sprocket 53 drives the drum 30 to rotate.
In one embodiment, the speed reducing motor 51 is located obliquely below the rolling portion 31 near the guide portion 22. In this way, the gear motor 51 does not contact the front brake shoe 210, and normal testing is not affected.
The elastic member 40 is a belleville spring, and the belleville spring is sleeved on the guide portion 22 and is located between the base 10 and the mounting portion 21. The belleville spring occupies small axial space and has large elasticity, thereby being beneficial to reducing the volume of the field bridge crane brake testing device.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (5)
1. The field bridge crane brake testing device is used for testing a brake of a field bridge crane and is characterized by comprising a base (10), a movable frame (20), a roller (30), an elastic piece (40) and a driving assembly, wherein the movable frame (20) is slidably installed on the base (10) front and back, the roller (30) is rotatably installed on the movable frame (20) and is suitable for being abutted with one brake shoe of the brake, the driving assembly is installed on the movable frame (20) and is in driving connection with the roller (30), the elastic piece (40) is installed between the base (10) and the movable frame (20) and is suitable for exerting a forward pre-tightening effect on the movable frame (20), a first abutting part (12) suitable for being abutted with the other brake shoe of the brake is arranged at the rear end of the base (10), and a second abutting part (13) suitable for being abutted with the bottom of the brake is arranged at the lower end of the base (10).
2. The field bridge crane braking test device according to claim 1, wherein the movable frame (20) comprises a U-shaped installation part (21) and a square guide part (22), the installation part (21) and the guide part (22) are fixedly connected, a guide hole (11) matched with the guide part (22) is formed in the base (10), the guide part (22) is slidably installed in the guide hole (11), the roller (30) comprises a rolling part (31) and two rotating shaft parts (32) positioned at two ends of the rolling part (31), the two rotating shaft parts (32) are fixedly connected with the rolling part (31) respectively, the rolling part (31) is positioned in the installation part (21), the two rotating shaft parts (32) are rotatably connected with two side walls of the installation part (21) respectively, and the driving assembly is installed on the installation part (21).
3. The field bridge crane brake testing device according to claim 2, wherein the driving assembly comprises a gear motor (51), a first sprocket (52), a second sprocket (53) and a chain (54), the gear motor (51) is located in the mounting portion (21) and fixed on one of the side walls, an output shaft of the gear motor (51) extends out of the mounting portion (21) from one of the side walls, the first sprocket (52) is fixed on the output shaft of the gear motor (51), one of the rotating shaft portions (32) extends out of the mounting portion (21), the second sprocket (53) is fixed on the rotating shaft portion (32) extending out of the mounting portion (21), and the chain (54) is sleeved on the first sprocket (52) and the second sprocket (53).
4. A field bridge crane brake testing device according to claim 3, characterized in that the gear motor (51) is located obliquely below the rolling part (31) near the guiding part (22).
5. The braking test device of a field bridge crane according to claim 2, characterized in that the elastic member (40) is a belleville spring, which is sleeved on the guiding portion (22) and is located between the base (10) and the mounting portion (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321657159.1U CN220104480U (en) | 2023-06-28 | 2023-06-28 | Brake testing device of field bridge crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321657159.1U CN220104480U (en) | 2023-06-28 | 2023-06-28 | Brake testing device of field bridge crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220104480U true CN220104480U (en) | 2023-11-28 |
Family
ID=88868344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321657159.1U Active CN220104480U (en) | 2023-06-28 | 2023-06-28 | Brake testing device of field bridge crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220104480U (en) |
-
2023
- 2023-06-28 CN CN202321657159.1U patent/CN220104480U/en active Active
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