A device for testing performance of a supporting wheel

Abstract

The application discloses a kind of support wheel performance detection devices, it is related to support wheel detection technical field.The air-tightness detection device and dynamic balance detection device are included, test wheel is installed on dynamic balance detection device, keep the rotation of test wheel during detection, air-tightness detection device includes cylinder and air-tightness detection plug, air-tightness detection plug is connected with cylinder telescopic end, air-tightness detection plug is combined with test wheel axle hole under the drive of cylinder, for carrying out air-tightness detection to test wheel while test wheel carries out dynamic balance test.The application is integrated by the setting of air-tightness detection plug and balance plate etc., air-tightness detection device and dynamic balance detection device, dynamic balance detection and air-tightness detection can be completed simultaneously in the rotation process of test wheel, without frequent transfer support wheel, greatly shorten detection time, improve detection efficiency, save the space of place occupied by two sets of equipment simultaneously, reduce detection cost.

Description

Technical Field

[0001] This invention relates to the field of track roller testing technology, specifically to a track roller performance testing device. Background Technology

[0002] Track rollers are core components of the walking system of construction machinery. Their performance directly affects the driving stability, safety, and service life of the machinery. Track rollers need to bear large loads and rotate during operation, so their dynamic balance and airtightness are key testing indicators. Poor dynamic balance will cause vibration when the track roller rotates, which will aggravate component wear and reduce the stability of equipment operation. Insufficient airtightness will lead to leakage of internal lubricating oil and the entry of external impurities, which will shorten the service life of the track roller.

[0003] Currently, the dynamic balance test and airtightness test of support rollers in existing technologies are usually carried out by two separate testing devices. The testing process is cumbersome, requires frequent transfer of support rollers, not only occupies a lot of space, but also consumes a lot of time and has poor results. Therefore, we have designed a new support roller testing device. Summary of the Invention

[0004] The purpose of this invention is to provide a track roller performance testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a track roller performance testing device, comprising:

[0006] An airtightness testing device and a dynamic balancing testing device are included. The test wheel is mounted on the dynamic balancing testing device and is kept rotating during the testing process.

[0007] The airtightness testing device includes a cylinder and an airtightness testing plug. The airtightness testing plug is connected to the telescopic end of the cylinder. Under the drive of the cylinder, the airtightness testing plug fits into the shaft hole of the test wheel, and is used to perform airtightness testing on the test wheel while the test wheel is undergoing dynamic balancing testing.

[0008] Furthermore, the mounting frame is formed by welding several rectangular tubes end to end. Support bearings are installed at both ends of the mounting frame, and the two support bearings are connected by a central shaft. A gap is maintained between the central shaft and the mounting frame. Several balance plates are also installed on the central shaft, and the center of gravity of the balance plates is fitted onto the central shaft.

[0009] Furthermore, the mounting bracket has locking blocks installed at the positions corresponding to both ends of the balance plate. The locking blocks are fixed to the mounting bracket, and a spring is installed on the top of the locking block. The other end of the spring is connected to the balance plate, and the spring is a tension spring.

[0010] Furthermore, a shaft is provided in the middle of the balance plate. The shaft is also rotatably mounted on the balance plate with its axis perpendicular to the horizontal plane. The surface of the shaft is also provided with a thread that matches the threaded groove on the inner wall of the test wheel axle.

[0011] Furthermore, the surface of the shaft is also fixed with several mounting seats, the number of which corresponds to the number of balance plates. Each mounting seat has a drive wheel rotatably mounted on its top. The mounting seat also has a space for mounting a drive source, which is used to control the drive wheel to rotate. During testing, the drive wheel and the test wheel are connected by a transmission belt.

[0012] Furthermore, the mounting frame has a side plate on one side, which is vertically arranged, and several support arms are installed on the side plate. Each support arm has a cylinder installed at its end, and an airtightness test plug is fixed to the telescopic end of the cylinder. The airtightness test plug is directly opposite the axis of the test wheel.

[0013] Furthermore, the airtightness testing plug includes a tube head, which is hollow inside. A ring-shaped protrusion is provided on the inner wall of the tube head, and an embedded connector is provided inside the tube head. The bottom of the embedded connector is threaded, and a rubber plug is screwed into the thread.

[0014] Furthermore, an embedded bearing is fixed to the inner wall of the tube head, the embedded bearing is located below the annular protrusion, the outer wall of the tube head is fixed to the embedded bearing, and the top of the tube head is locked to the annular protrusion.

[0015] Furthermore, a flux meter is also installed on the side plate, and an air tube is connected to the tube head. The other end of the air tube is connected to the flux meter, and the input end of the flux meter is connected to the air source.

[0016] Furthermore, dial indicators or micrometers are installed at both ends of the balance plate to test qualified support rollers, and the data obtained from the test of qualified support rollers is used as the subsequent testing standard.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The track roller performance testing device integrates the air tightness testing device and the dynamic balance testing device into one unit through the setting of air tightness testing plugs and balance plates. Dynamic balance testing and air tightness testing can be completed simultaneously during the rotation of the test roller, eliminating the need for frequent transfer of the track roller, greatly shortening the testing time, improving testing efficiency, and saving the space occupied by two sets of equipment, thus reducing testing costs.

[0019] Meanwhile, the device adopts an automated design that uses a cylinder to drive the airtightness testing plug for automatic and precise docking and the drive source to drive the test wheel for smooth rotation. This replaces manual operation and repeated debugging, reducing the cost of manual intervention and the probability of operational errors, while also significantly increasing the turnover speed of the testing station. From multiple dimensions such as simplifying the testing process, reducing equipment space occupation, and improving batch verification efficiency, it comprehensively improves the overall capacity and operational efficiency of support roller testing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the support roller detection state structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the support roller mounting position structure of the present invention;

[0023] Figure 4 For the present invention Figure 2 A schematic diagram of the cross-sectional structure at the centerline L.

[0024] In the diagram: 1. Side plate; 2. Mounting bracket; 3. Support arm; 4. Cylinder; 5. Air tightness test plug; 501. Pipe head; 502. Annular protrusion; 503. Embedded connector; 504. Embedded bearing; 505. Rubber plug; 6. Air pipe; 7. Flux meter; 8. Support bearing; 9. Shaft rod; 10. Balance plate; 11. Locking block; 12. Spring; 13. Insert shaft; 14. Test wheel; 15. Mounting base; 16. Drive source; 17. Drive wheel; 18. Transmission belt. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figure 1 As shown, the present invention provides a technical solution: a support roller performance testing device, including an airtightness testing device and a dynamic balance testing device. During use, the test roller 14 is mounted on the dynamic balance testing device. During the testing process, the test roller 14 is kept rotating. At the same time, the airtightness testing device is connected to the test roller 14 to test the airtightness of the test roller 14 during rotation.

[0027] like Figure 1 and Figure 2As shown, specifically, the dynamic balancing testing device includes a mounting frame 2, which is formed by welding several rectangular tubes end to end. Support bearings 8 are installed at both ends of the mounting frame 2, and two support bearings 8 are connected by a central shaft 9. A gap is maintained between the central shaft 9 and the mounting frame 2. Several balance plates 10 are also installed on the central shaft 9. The center of gravity of the balance plate 10 is fitted onto the central shaft 9, and in the idle state, the top plane of the balance plate 10 is always parallel to the horizontal plane. During operation, a test wheel 14 is installed at the center of gravity of the balance plate 10 with its axis perpendicular to the horizontal plane. When the test wheel 14 rotates, the dynamic balance state can be judged by observing the fluctuations of the balance plate 10. The balance plate 10 and the central shaft 9 are connected by bearings, self-lubricating bearings, and bushings, etc., to ensure smooth rotation between the balance plate 10 and the central shaft 9 during the test, reducing the impact caused by friction between them.

[0028] like Figure 2 and Figure 3 As shown, to ensure the smooth implementation of the above embodiments, it is necessary to understand that a locking block 11 is installed at the positions corresponding to both ends of the balance plate 10 on the mounting frame 2. The locking block 11 is fixed to the mounting frame 2 by welding, riveting or screwing, and a spring 12 is installed on the top of the locking block 11. The other end of the spring 12 is connected to the balance plate 10. With this structure, the balance plate 10 can achieve self-reset in the shaking state. In order to reduce the influence of the compression potential energy of the spring 12 on the balance plate 10, the spring 12 is a tension spring. During the operation, the tension spring should only generate tensile deformation as much as possible, reduce compression deformation and corresponding compression potential energy, reduce the rebound and impact of the compression spring on the balance plate 10 due to the release of compression potential energy, and make the balance plate 10 as stable as possible to self-reset after shaking.

[0029] like Figure 3As shown, regarding the above scheme, it is also necessary to understand that a shaft 13 is provided in the middle of the balance plate 10. The shaft 13 is also rotatably installed on the balance plate 10 with its axis perpendicular to the horizontal plane. Furthermore, the surface of the shaft 13 is provided with threads that match the threaded grooves on the inner wall of the test wheel 14. That is, during installation, the test wheel 14 is screwed onto the shaft 13, and the test wheel 14 is fixedly installed through a threaded connection. Several mounting seats 15 are also fixed on the surface of the shaft rod 9. The number of mounting seats 15 corresponds to the number of balance plates 10. Each mounting seat... The top of each of the mounting bases 15 is rotatably mounted with a drive wheel 17. A space is also provided on the mounting base 15 for mounting a drive source 16. The drive source 16 is used to control the rotation of the drive wheel 17. During testing, the drive wheel 17 is connected to the test wheel 14 via a transmission belt 18. It should be noted that because the support wheel is large in size and heavy, the transmission belt 18 needs to have sufficient friction with the test wheel 14. That is to say, there is a large tension between the drive wheel 17 and the test wheel 14. Mounting the drive wheel 17 at the shaft rod 9 can avoid the test wheel 14 from tilting due to the tension.

[0030] like Figure 1 and Figure 4 As shown, to ensure the smooth implementation of this embodiment, it is also necessary to understand that a side plate 1 is provided on one side of the mounting frame 2. The side plate 1 is vertically arranged, and several support arms 3 are installed on the side plate 1. A cylinder 4 is installed at the end of each support arm 3. An airtightness detection plug 5 is fixed at the extension end of the cylinder 4. The airtightness detection plug 5 is directly opposite the axis of the test wheel 14. When testing, the cylinder 4 extends and retracts, causing the airtightness detection plug 5 to press against the shaft hole of the support wheel, allowing air to pass through the shaft hole. The airtightness effect of the support wheel is detected by observing the amount of air passage.

[0031] like Figure 4 As shown, to ensure the smooth implementation of the above embodiments, it is necessary to understand that the airtightness testing plug 5 includes a tube head 501, which is hollow inside. A ring-shaped protrusion 502 is provided on the inner wall of the tube head 501. An embedded connector 503 is provided inside the tube head 501. The bottom of the embedded connector 503 is provided with a thread, and a rubber plug 505 is screwed into the thread. The bottom of the rubber plug 505 is set in a bevel shape and the overall diameter is larger than the diameter of the shaft hole of the support roller to be tested. When the rubber plug 505 is pressed against the shaft hole, the sealing between the rubber plug 505 and the support roller can be ensured.

[0032] In addition, an embedded bearing 504 is fixed on the inner wall of the tube head 501. The embedded bearing 504 is located below the annular protrusion 502. The outer wall of the tube head 501 is fixed to the embedded bearing 504, and the top of the tube head 501 is stuck in the annular protrusion 502 to prevent it from falling off. A flux meter 7 is also installed on the side plate 1. A gas tube 6 is connected to the tube head 501. The other end of the gas tube 6 is connected to the flux meter 7. The input end of the flux meter 7 is connected to the gas source.

[0033] With this structure, before the support roller undergoes dynamic balancing testing, the tube head 501 is placed against the shaft hole of the support roller, and then the support roller is subjected to dynamic balancing testing. During the test, even if the support roller is rotating, its airtightness can be tested, which can save a lot of time and space costs.

[0034] When the performance testing device for the support roller is in operation, the test roller 14 is first installed on the insert shaft 13 in the middle of the balance plate 10 via a threaded connection. The balance plate 10 is connected to the shaft rod 9 through components such as the support bearing 8 and can rotate smoothly. The spring 12 connected to the top of the locking block 11 on the mounting frame 2 realizes the self-reset of the balance plate 10 after shaking. Then, the cylinder 4 at the end of the support arm 3 on one side plate 1 of the mounting frame 2 extends and retracts, pushing the airtightness test plug 5 to move, so that the rubber abutment 505 inside the tube head 501 of the airtightness test plug 5 tightly fits the test. The shaft hole of the test wheel 14 is sealed. The air source is supplied to the shaft hole through the flux meter 7 on the side plate 1 and the air pipe 6 connected to the pipe head 501. The air flow is observed through the flux meter 7. Then, the drive source 16 on the mounting seat 15 on the shaft rod 9 drives the drive wheel 17 to rotate. The drive wheel 14 is driven to rotate synchronously through the transmission belt 18. The staff can judge the dynamic balance performance of the test wheel 14 by observing the fluctuation state of the balance plate 10, thereby completing the air tightness test during the rotation of the test wheel 14 and realizing the synchronous test of dynamic balance and air tightness.

[0035] It should be noted that in this device, the flux meter 7 can realize standardized testing of the airtightness of the support roller. If standardized testing of dynamic balance is required, dial indicators or micrometers can be installed at both ends of the balance plate 10. Using a qualified support roller as a reference, the runout range of the dial indicator or micrometer during the dynamic balance test of the support roller is recorded. The runout range is used as the standard to test the subsequent support rollers to be tested, so as to realize the standardized testing of dynamic balance.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A device for testing the performance of a track roller, characterized in that, include: An airtightness testing device and a dynamic balance testing device are provided. The test wheel (14) is mounted on the dynamic balance testing device and rotates during the testing process. The airtightness testing device includes a cylinder (4) and an airtightness testing plug (5). The airtightness testing plug (5) is connected to the telescopic end of the cylinder (4). The airtightness testing plug (5) is engaged with the shaft hole of the test wheel (14) under the drive of the cylinder (4) and is used to perform airtightness testing on the test wheel (14) while the test wheel (14) is undergoing dynamic balance testing.

2. The track roller performance testing device according to claim 1, characterized in that: The mounting frame (2) is formed by welding several rectangular tubes end to end. Support bearings (8) are installed at both ends of the mounting frame (2). The two support bearings (8) are connected by a shaft rod (9). There is a gap between the shaft rod (9) and the mounting frame (2). Several balance plates (10) are also installed on the shaft rod (9). The center of gravity of the balance plate (10) is fitted onto the shaft rod (9).

3. The track roller performance testing device according to claim 2, characterized in that: The mounting bracket (2) has a locking block (11) installed at both ends of the balance plate (10). The locking block (11) is fixed at the mounting bracket (2), and a spring (12) is installed on the top of the locking block (11). The other end of the spring (12) is connected to the balance plate (10). The spring (12) is a tension spring.

4. The track roller performance testing device according to claim 2, characterized in that: A shaft (13) is provided in the middle of the balance plate (10). The shaft (13) is also rotatably installed on the balance plate (10) with its axis perpendicular to the horizontal plane. The surface of the shaft (13) is also provided with a thread that matches the thread groove on the inner wall of the test wheel (14).

5. The track roller performance testing device according to claim 2, characterized in that: The surface of the shaft (9) is also fixed with several mounting seats (15). The number of mounting seats (15) corresponds to the number of balance plates (10). Each mounting seat (15) has a drive wheel (17) rotatably mounted on its top. A space is also provided on the mounting seat (15) for installing a drive source (16). The drive source (16) is used to control the drive wheel (17) to rotate. During testing, the drive wheel (17) and the test wheel (14) are connected by a transmission belt (18).

6. The track roller performance testing device according to claim 2, characterized in that: The mounting bracket (2) has a side plate (1) on one side. The side plate (1) is vertically arranged and has several support arms (3) installed on it. Each support arm (3) has a cylinder (4) installed at its end. The telescopic end of the cylinder (4) is fixed with an airtightness test plug (5). The airtightness test plug (5) is directly opposite the axis of the test wheel (14).

7. The track roller performance testing device according to claim 6, characterized in that: The airtightness test plug (5) includes a tube head (501), which is hollow inside. A ring-shaped protrusion (502) is provided on the inner wall of the tube head (501). An embedded connector (503) is provided inside the tube head (501). The bottom of the embedded connector (503) is threaded, and a rubber plug (505) is screwed into the thread.

8. The track roller performance testing device according to claim 7, characterized in that: An embedded bearing (504) is also fixed to the inner wall of the tube head (501). The embedded bearing (504) is located below the annular protrusion (502). The outer wall of the tube head (501) is fixed to the embedded bearing (504), and the top of the tube head (501) is stuck to the annular protrusion (502).

9. The track roller performance testing device according to claim 6, characterized in that: A flux meter (7) is also installed on the side plate (1), and an air pipe (6) is connected at the pipe head (501). The other end of the air pipe (6) is connected to the flux meter (7), and the input end of the flux meter (7) is connected to the air source.

10. A track roller performance testing device according to claim 4, characterized in that: The balance plate (10) is equipped with dial indicators or micrometers at both ends to test qualified support rollers, and the data obtained from the test of qualified support rollers is used as the subsequent test standard.

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