Temperature-controllable shaft sleeve bench test device

Abstract

A temperature-controllable shaft sleeve bench test device comprises a pin shaft, a left bearing seat and a right bearing seat, the left bearing seat and the right bearing seat are arranged at two ends of the pin shaft and connected with the pin shaft, the middle of the pin shaft is sleeved with a test shaft sleeve, one end of the pin shaft is provided with a middle groove, and the middle groove extends to the middle of the pin shaft. A heating resistor is arranged in the middle groove; therefore, temperature control can be achieved, the change of the friction coefficient and the abrasion loss of the workpiece is obtained under the simulated extreme temperature, the temperature in the testing machine is monitored in real time by installing a temperature sensor, and temperature controllability is achieved by feeding back the temperature of a control system. The potential failure mode and the key performance index of the shaft sleeve can be found under the simulated diversified working conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeves, in particular to a temperature-controllable shaft sleeve bench test device. Background Art

[0002] The bushing bench test is a test method for testing and evaluating bushing performance. Existing bushing bench test devices use external heating devices such as heaters, which cannot achieve self-adaptive temperature control, affecting the accuracy of the test results and have a single function. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a temperature-controllable shaft sleeve bench test device.

[0004] The technical solution adopted by the utility model to solve the technical problem is:

[0005] A temperature-controllable sleeve bench test device comprises a pin shaft, a left bearing seat and a right bearing seat which are arranged at both ends of the pin shaft and connected to the pin shaft, a test sleeve is sleeved on the middle part of the pin shaft, a middle groove is opened at one end of the pin shaft, the middle groove extends to the middle part of the pin shaft, and a heating resistor is arranged in the middle groove.

[0006] In one embodiment, an outer sleeve is sleeved on the test sleeve, a rolling bearing is sleeved on the outer sleeve, and a loading cylinder is provided on the rolling bearing.

[0007] In one embodiment, the outer ring of the test sleeve is interference fit with the outer sleeve seat.

[0008] In one embodiment, there is a gap of 0.10-0.20 mm between the inner ring of the test sleeve and the pin shaft.

[0009] In one embodiment, two ends of the inner ring of the rolling bearing are respectively connected to a left connecting block and a right connecting block, and the left connecting block and the right connecting block at one end away from the rolling bearing are connected by a connecting rod.

[0010] In one embodiment, a high-frequency oil cylinder is fixedly connected to the connecting rod.

[0011] In one embodiment, a temperature sensor is provided between the left connecting block or the right connecting block and the left bearing seat or the right bearing seat, and on the pin shaft.

[0012] In one embodiment, the temperature sensor is fixed on the pin via a clamp.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model uses a pin shaft, a left bearing seat and a right bearing seat arranged at both ends of the pin shaft and connected to the pin shaft, a test sleeve is sleeved in the middle of the pin shaft, a middle groove is opened at one end of the pin shaft, the middle groove extends to the middle of the pin shaft, and a heating resistor is arranged in the middle groove; thus, temperature control can be achieved, and the changes in the friction coefficient and wear amount of the workpiece under extreme temperature can be obtained, and the temperature inside the test machine can be monitored in real time by installing a temperature sensor, and the temperature of the system can be controlled by feedback. It can simulate various working conditions, discover the potential failure mode and key performance indicators of the sleeve, and provide a basis for design and optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0016] Figure 2 For this utility model Figure 1 A schematic diagram of the structure without the rolling bearing;

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of the outer sleeve seat structure.

[0018] In the figure: 10, pin shaft, 11, left bearing seat, 12, right bearing seat, 15, middle groove, 16, heating resistor, 20, test sleeve, 21, outer sleeve seat, 22, rolling bearing, 23, loading cylinder, 25, left connecting block, 26, right connecting block, 27, connecting rod, 30, temperature sensor. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1

[0021] like Figure 1-3 As shown, this embodiment includes a pin shaft 10, a left bearing seat 11 and a right bearing seat 12 which are arranged at both ends of the pin shaft 10 and connected to the pin shaft 10, so that the pin shaft 10 can rotate on the left bearing seat 11 and the right bearing seat 12.

[0022] A test sleeve 20 is sleeved on the middle of the pin shaft 10 . In this embodiment, there is a gap of 0.10-0.20 mm between the inner ring of the test sleeve 20 and the pin shaft 10 .

[0023] A middle groove 15 is formed at one end of the pin shaft 10 . The middle groove 15 extends to the middle of the pin shaft 10 . A heating resistor 16 is disposed in the middle groove 15 .

[0024] An outer sleeve seat 21 is sleeved on the test sleeve 20 . In this embodiment, the outer ring of the test sleeve 20 and the outer sleeve seat 21 are interference fit.

[0025] A rolling bearing 22 is sleeved on the outer sleeve seat 21 , and a loading cylinder 23 is provided on the rolling bearing 22 . In the present embodiment, the loading cylinder 23 is fixedly connected to the rolling bearing 22 .

[0026] The two ends of the inner ring of the rolling bearing 22 are respectively connected with a left connecting block 25 and a right connecting block 26 . In this embodiment, the left connecting block 25 and the right connecting block 26 are arranged at the two ends of the outer sleeve seat 21 and fixedly connected to the outer sleeve seat 21 .

[0027] The left connecting block 25 and the right connecting block 26 at one end away from the rolling bearing 22 are connected by a connecting rod 27, and a high-frequency cylinder (not shown in the figure) is fixedly connected to the connecting rod 27; in this embodiment, the output shaft of the high-frequency cylinder is fixedly connected to the connecting rod 27.

[0028] A temperature sensor 30 is provided between the left connecting block 25 or the right connecting block 26 and the left bearing seat 11 or the right bearing seat 12 and on the pin 10 . The temperature sensor 30 is fixed to the pin 10 through a clamp.

[0029] In this embodiment, the temperature sensor 30 is also connected to an external temperature control system for measuring temperature, and the external temperature control system for measuring temperature is connected to the heating resistor 16 , so that the temperature of the heating resistor 16 can be controlled by the external temperature control system for measuring temperature, thereby controlling the axial temperature of the pin shaft 10 .

[0030] Therefore, the utility model can set the required temperature through temperature control according to the test requirements to understand the performance change law of the sleeve under different temperature conditions, which can help researchers deeply understand the relationship between the performance and temperature of the sleeve. By accurately controlling and adjusting the test temperature, the actual working conditions can be simulated to a certain extent, providing important test data support for the design and optimization of the sleeve.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the technical solution of the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the spirit and scope of the technical solution of each embodiment of the utility model.

Claims

1. A temperature-controllable sleeve bench test device, characterized in that: The invention comprises a pin shaft (10), a left bearing seat (11) and a right bearing seat (12) which are arranged at both ends of the pin shaft (10) and connected to the pin shaft (10); a test sleeve (20) is sleeved on the middle part of the pin shaft (10); a middle groove (15) is opened at one end of the pin shaft (10); the middle groove (15) extends to the middle part of the pin shaft (10); a heating resistor (16) is arranged in the middle groove (15).

2. The temperature-controllable sleeve bench test device according to claim 1, characterized in that: An outer sleeve (21) is sleeved on the test shaft sleeve (20), a rolling bearing (22) is sleeved on the outer sleeve (21), and a loading oil cylinder (23) is provided on the rolling bearing (22).

3. The temperature-controllable sleeve bench test device according to claim 2, characterized in that: The outer ring of the test shaft sleeve (20) is interference fit with the outer sleeve seat (21).

4. The temperature-controllable sleeve bench test device according to claim 3 is characterized in that: There is a gap of 0.10-0.20 mm between the inner ring of the test sleeve (20) and the pin shaft (10).

5. The temperature-controllable sleeve bench test device according to claim 4 is characterized in that: The two ends of the inner ring of the rolling bearing (22) are respectively connected to a left connecting block (25) and a right connecting block (26), and the left connecting block (25) and the right connecting block (26) at one end away from the rolling bearing (22) are connected via a connecting rod (27).

6. The temperature-controllable sleeve bench test device according to claim 5, characterized in that: A high-frequency oil cylinder is fixedly connected to the connecting rod (27).

7. The temperature-controllable sleeve bench test device according to claim 6, characterized in that: A temperature sensor (30) is provided between the left connecting block (25) or the right connecting block (26) and the left bearing seat (11) or the right bearing seat (12), and on the pin shaft (10).

8. The temperature-controllable sleeve bench test device according to claim 7, characterized in that: The temperature sensor (30) is fixed on the pin shaft (10) via a clamp.

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