Dynamic and static stiffness clamp for train shock absorber

Abstract

The utility model relates to the field of train shock absorbers, and discloses a dynamic and static stiffness clamp for a train shock absorber, which comprises a shock absorber, an upper connecting rotating plate is inserted at the top end of the shock absorber, a sensor stud is mounted at the top end of the upper connecting rotating plate, a load sensor is mounted at the top end of the sensor stud, and a load sensor is mounted at the top end of the load sensor. A sensor connecting plate is inserted into the top end of the load sensor, a lower connecting rotating plate is installed at the bottom end of the shock absorber, a lower connecting sleeve is installed at the bottom end of the lower connecting rotating plate, a first screw penetrates through and is inserted into the bottom end of the load sensor, and the first screw is in threaded connection with the sensor connecting plate. According to the train shock absorber fixing device, a split connection structural form is adopted, so that the train shock absorber fixing device can adapt to train shock absorbers of different sizes when used, meanwhile, the train shock absorbers of different forms can be fixed by adjusting the orientation of the lower connecting rotating plate, and the whole device has good applicability.

Description

Technical Field

[0001] The utility model relates to the field of train shock absorbers, in particular to a static and dynamic stiffness fixture for train shock absorbers. Background Technique

[0002] Shock absorbers are widely used in the transportation industry. Their good shock absorption effect enables the carrier to smoothly transport passengers or goods to the destination. The performance of train shock absorbers has great value for train transportation. Its mechanical parameters are of milestone significance for improving the train shock absorption system. It makes the train run more smoothly and comfortably. At the same time, it improves the shock absorption system, optimizes the structural design of the shock absorber, and speeds up the development of a new generation of locomotives. Therefore, the test for measuring the static and dynamic stiffness of train shock absorbers is particularly important.

[0003] When measuring and experimenting on existing train shock absorbers, special fixtures are generally used for fixation. A single type of fixture cannot adapt to various different types of train shock absorbers. At the same time, the existing train shock absorber fixtures are generally integral fixtures and cannot be adjusted according to the different shapes of train shock absorbers. The overall device has poor applicability. For this reason, a static and dynamic stiffness fixture for train shock absorbers is proposed to solve the above problems. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a static and dynamic stiffness fixture for train shock absorbers, aiming to improve the problem that "the existing train shock absorber fixtures are generally special fixtures and have poor applicability when in use" in the existing technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a static and dynamic stiffness fixture for train shock absorbers, including a shock absorber. The top end of the shock absorber is plugged with an upper connecting rotating plate. The top end of the upper connecting rotating plate is installed with a sensor stud. The top end of the sensor stud is installed with a load sensor. The top end of the load sensor is plugged with a sensor connecting plate. The bottom end of the shock absorber is installed with a lower connecting rotating plate. The bottom end of the lower connecting rotating plate is installed with a lower connecting sleeve.

[0006] As a further description of the above technical scheme:

[0007] The bottom end of the load sensor penetrates and is plugged with a screw one. The screw one is in threaded connection with the sensor connecting plate.

[0008] As a further description of the above technical scheme:

[0009] The outer wall of the sensor stud is sleeved with a locking pad. The bottom end of the locking pad is provided with a spiral inclined surface. There are multiple groups of locking pads. The multiple groups of locking pads are rotationally arranged in an array with the center line of the sensor stud as the axis of symmetry.

[0010] As a further description of the above technical solution:

[0011] A first stop is provided at the top of the upper connecting rotating plate, and the first stop is adapted to the sensor stud.

[0012] As a further description of the above technical solution:

[0013] A second stop is provided at the bottom of the upper connecting rotating plate, and the second stop is adapted to the shock absorber.

[0014] As a further description of the above technical solution:

[0015] Multiple groups of the second stops are provided, and another group of the second stops is provided at the top of the lower connecting rotating plate.

[0016] As a further description of the above technical solution:

[0017] A boss is provided at the top of the load sensor, and a groove is provided at the bottom of the sensor connecting plate, and the boss is adapted to the groove.

[0018] As a further description of the above technical solution:

[0019] A fine-thread bolt penetrates and is inserted into the outer wall of the upper connecting rotating plate, the fine-thread bolt penetrates the top of the shock absorber, and a plurality of round nuts are threadedly connected to the outer wall of the fine-thread bolt.

[0020] As a further description of the above technical solution:

[0021] Multiple groups of the fine-thread bolts and the round nuts are provided, and another group of the fine-thread bolts and the round nuts are installed at the connection between the lower connecting rotating plate and the shock absorber.

[0022] As a further description of the above technical solution:

[0023] A second screw penetrates and is inserted into the top of the lower connecting rotating plate, and the second screw is threadedly connected to the lower connecting sleeve.

[0024] The utility model has the following beneficial effects:

[0025] 1. In the utility model, by adopting a split connection structure form, the device can adapt to train shock absorbers of different sizes during use. At the same time, for train shock absorbers of different forms, fixation can also be achieved by adjusting the orientation of the lower connecting rotating plate, and the overall device has good applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the utility model;

[0027] Figure 2 Schematic diagram of the three-dimensional structure splitting of the overall device in the present utility model;

[0028] Figure 3 Schematic diagram of the three-dimensional structure of the sensor connecting plate and the load sensor in the present utility model;

[0029] Figure 4 Schematic diagram of the three-dimensional structure section splitting of the upper connecting rotating plate in the present utility model.

[0030] Legend description:

[0031] 1. Sensor connecting plate; 101. Groove; 102. Boss; 2. Load sensor; 3. Screw one; 4. Locking washer; 5. Sensor stud; 6. Upper connecting rotating plate; 601. Stopper one; 602. Stopper two; 7. Fine-thread bolt; 8. Round nut; 9. Shock absorber; 10. Lower connecting rotating plate; 11. Lower connecting sleeve; 12. Screw two. Specific implementation manner

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0033] Refer to Figure 1 - Figure 3 As an embodiment provided by the present utility model: A static and dynamic stiffness fixture for a train shock absorber, including a shock absorber 9. The top of the shock absorber 9 is inserted with an upper connecting rotating plate 6 for fixing the top of the shock absorber 9. The top of the upper connecting rotating plate 6 is installed with a sensor stud 5 for connecting the upper connecting rotating plate 6 and the load sensor 2. The top of the sensor stud 5 is installed with a load sensor 2 for measuring the force on the shock absorber 9. The top of the load sensor 2 is inserted with a sensor connecting plate 1 for connecting with the external interface of the measuring device. The bottom of the shock absorber 9 is installed with a lower connecting rotating plate 10 for fixing the bottom of the shock absorber 9. The bottom of the lower connecting rotating plate 10 is installed with a lower connecting sleeve 11 for connecting with the measuring device. The bottom of the lower connecting sleeve 11 is provided with a threaded hole for connecting with the measuring device.

[0034] Refer to Figure 1 、 Figure 2 And Figure 4, the bottom end of the load sensor 2 penetrates and is inserted with a first screw 3 for connecting the sensor connecting plate 1 and the load sensor 2. The first screw 3 is threadedly connected to the sensor connecting plate 1. By screwing the first screw 3, the load sensor 2 can be fixed at the bottom end of the sensor connecting plate 1. A locking pad 4 for preventing the sensor stud 5 from loosening is sleeved on the outer wall of the sensor stud 5. A spiral inclined surface for locking is provided at the bottom end of the locking pad 4. There are multiple groups of locking pads 4, and the multiple groups of locking pads 4 are rotationally arranged in an array with the center line of the sensor stud 5 as the axis of symmetry. There is a clearance fit between the locking pad 4 and the sensor stud 5. After the sensor stud 5 is installed, by rotating one of the locking pads 4, the spiral inclined surfaces of the two locking pads 4 can be forced to squeeze and fit with each other, so as to realize the anti-loosening between the load sensor 2 and the upper connecting rotating plate 6. A first stop 601 for positioning the sensor stud 5 is provided at the top end of the upper connecting rotating plate 6. The first stop 601 is adapted to the sensor stud 5. When the sensor stud 5 is rotated and inserted into the upper connecting rotating plate 6 and the outer wall of the sensor stud 5 is in contact with the first stop 601, it means that the connection between the sensor stud 5 and the upper connecting rotating plate 6 is completed. A second stop 602 for positioning the upper connecting rotating plate 6 and the shock absorber 9 is provided at the bottom end of the upper connecting rotating plate 6. The second stop 602 is adapted to the shock absorber 9. By inserting the protruding part at the top end of the shock absorber 9 into the second stop 602, the positioning of the upper connecting rotating plate 6 can be realized. There are multiple groups of the second stop 602, and another group of the second stop 602 is provided at the top end of the lower connecting rotating plate 10. The lower connecting rotating plate 10 is also positioned with the shock absorber 9 through the second stop 602.

[0035] Refer to Figure 1 - Figure 3, a boss 102 for positioning the sensor connecting plate 1 is provided at the top end of the load sensor 2, and a groove 101 for accommodating the boss 102 is provided at the bottom end of the sensor connecting plate 1. The boss 102 and the groove 101 are adapted to each other. Through the cooperation between the boss 102 and the groove 101, the positioning between the sensor connecting plate 1 and the load sensor 2 can be achieved. The outer wall of the upper connecting rotating plate 6 is penetrated and inserted with a fine-thread bolt 7 for fixing the upper connecting rotating plate 6 and the shock absorber 9. The fine-thread bolt 7 penetrates the top end of the shock absorber 9. A plurality of round nuts 8 for pressing the sensor 9 are threadedly connected to the outer wall of the fine-thread bolt 7. By screwing the round nuts 8, the shock absorber 9 can be pressed to make it fit with the bottom end of the upper connecting rotating plate 6. At the same time, providing two round nuts 8 for a single fine-thread bolt 7 can effectively eliminate the thread clearance and ensure the correctness of the test. A plurality of fine-thread bolts 7 and round nuts 8 are provided. Another set of fine-thread bolts 7 and round nuts 8 are installed at the connection between the lower connecting rotating plate 10 and the shock absorber 9. The lower connecting rotating plate 10 and the shock absorber 9 are also fixed through the cooperation of the fine-thread bolt 7 and the round nut 8. A screw two 12 for fixing the lower connecting sleeve 11 penetrates and is inserted into the top end of the lower connecting rotating plate 10. The screw two 12 is in threaded connection with the lower connecting sleeve 11.

[0036] Working principle: When it is necessary to test the shock absorber 9, the upper connecting rotating plate 6 can be first inserted at the top end of the shock absorber 9 and positioned through the second stop 602. Subsequently, the fine-thread bolt 7 can be used to penetrate the upper connecting rotating plate 6 and the shock absorber 9, and the round nut 8 can be used to fix the fine-thread bolt 7 and the shock absorber 9. Then, the sensor double-headed stud 5 can be installed at the top end of the upper connecting rotating plate 6 by screwing. Then, two locking washers 4 are sleeved on the outer wall of the sensor double-headed stud 5. Then, the sensor connecting plate 1 can be first installed at the top end of the load sensor 2 by using the screw one 3, and then the load sensor 2 can be screwed and installed at the top end of the sensor double-headed stud 5. After the load sensor 2 is installed, one locking washer 4 can be rotated to drive the two locking washers 4 to rub and press against each other to achieve anti-loosening between the load sensor 2 and the upper connecting rotating plate 6.

[0037] After the upper half of the shock absorber 9 is fixed, it is necessary to first use the screw two 12 to fix the lower connecting sleeve 11 at the bottom end of the lower connecting rotating plate 10, then fit the lower connecting rotating plate 10 with the shock absorber 9, and finally use the fine-thread bolt 7 and the round nut 8 to fix the lower connecting rotating plate 10 at the bottom end of the shock absorber 9. After the sensor connecting plate 1 and the lower connecting sleeve 11 are both installed, the sensor connecting plate 1 and the lower connecting sleeve 11 can be connected to the test equipment, and then the test of the shock absorber 9 can be started.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A static and dynamic stiffness fixture for a train shock absorber, comprising a shock absorber (9), characterized in that: The top end of the shock absorber (9) is inserted with an upper connecting rotating plate (6). The top end of the upper connecting rotating plate (6) is installed with a sensor stud (5). The top end of the sensor stud (5) is installed with a load sensor (2). The top end of the load sensor (2) is inserted with a sensor connecting plate (1). The bottom end of the shock absorber (9) is installed with a lower connecting rotating plate (10). The bottom end of the lower connecting rotating plate (10) is installed with a lower connecting sleeve (11).

2. The static and dynamic stiffness fixture for a train shock absorber according to claim 1, characterized in that: The bottom end of the load sensor (2) is penetrated and inserted with a first screw (3). The first screw (3) is in threaded connection with the sensor connecting plate (1).

3. The dynamic and static stiffness fixture for a train shock absorber according to claim 1, characterized in that: The outer wall of the sensor stud (5) is sleeved with a locking pad (4). The bottom end of the locking pad (4) is provided with a spiral inclined surface. There are multiple groups of the locking pads (4). Multiple groups of the locking pads (4) are rotationally arranged in an array with the central axis of the sensor stud (5) as the symmetry axis.

4. A static and dynamic stiffness fixture for a train shock absorber according to claim 1, characterized in that: The top end of the upper connecting rotating plate (6) is provided with a first stop (601). The first stop (601) is adapted to the sensor stud (5).

5. A static and dynamic stiffness fixture for a train shock absorber according to claim 1, characterized in that: The bottom end of the upper connecting rotating plate (6) is provided with a second stop (602). The second stop (602) is adapted to the shock absorber (9).

6. The dynamic and static stiffness fixture for a train shock absorber according to claim 5, characterized in that: There are multiple groups of the second stops (602). Another group of the second stops (602) is arranged at the top end of the lower connecting rotating plate (10).

7. A static and dynamic stiffness fixture for a train shock absorber according to claim 1, characterized in that: The top end of the load sensor (2) is provided with a boss (102). The bottom end of the sensor connecting plate (1) is provided with a groove (101). The boss (102) is adapted to the groove (101).

8. A static and dynamic stiffness fixture for a train shock absorber according to claim 1, characterized in that: The outer wall of the upper connecting rotating plate (6) is penetrated and inserted with a fine-thread bolt (7). The fine-thread bolt (7) penetrates the top end of the shock absorber (9). The outer wall of the fine-thread bolt (7) is in threaded connection with a round nut (8) and the number of the round nuts (8) is multiple groups.

9. A static and dynamic stiffness fixture for a train shock absorber according to claim 8, characterized in that: There are multiple groups of the fine-thread bolt (7) and the round nut (8). Another group of the fine-thread bolt (7) and the round nut (8) is installed at the connection between the lower connecting rotating plate (10) and the shock absorber (9).

10. A static and dynamic stiffness fixture for a train shock absorber according to claim 1, characterized in that: The top end of the lower connecting rotating plate (10) is penetrated and inserted with a second screw (12). The second screw (12) is in threaded connection with the lower connecting sleeve (11).

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