A test fixture for analyzing factors affecting the sliding force of the intermediate shaft

Abstract

The utility model relates to the technical field of automobile steering systems, and discloses a test fixture for analyzing factors affecting the sliding force of an intermediate shaft, comprising a sliding pair, a surface of the sliding pair is provided with a clamp fixing mechanism, the clamp fixing mechanism comprises a lower clamp, the lower clamp is provided at the bottom of the sliding pair surface, an upper clamp is provided on the top of the lower clamp, the left end of the sliding pair is rotatably connected with an upper universal joint, and the right end of the sliding pair is rotatably connected with a lower universal joint, and the lower clamp and the upper clamp are fixed by through-holes, spring columns and spring sleeve telescopic columns provided on the surfaces of the lower clamp and the upper clamp. The assembly has a good fixing effect, and a good fixing effect can be achieved by the elastic force of the spring column. At the same time, by providing a fixing column, the spring column and the spring sleeve telescopic column can be quickly pushed out from the inside of the through-hole, and the lower clamp and the upper clamp can be quickly disassembled, so that the internal experimental device can be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile steering systems, in particular to a test tool used for analyzing factors affecting the sliding force of an intermediate shaft. Background Art

[0002] The intermediate shaft is a shaft in the car gearbox. The shaft itself is integrated with the gear. Its function is to connect the first shaft and the second shaft. By changing the shift lever, it can select different gears to mesh with, so that the second shaft can output different speeds, directions and torques. Because its shape is like a tower, it is also called "pagoda gear".

[0003] According to a test fixture for analyzing the factors affecting the sliding force of the intermediate shaft disclosed on the patent website (authorization announcement number: CN220625719U), "The utility model relates to the technical field of steering systems, specifically a test fixture for analyzing the factors affecting the sliding force of the intermediate shaft. A test fixture for analyzing the factors affecting the sliding force of the intermediate shaft includes a retaining ring and a hexagonal bolt, characterized in that: a retaining ring is sleeved on the top of the sliding shaft located on the intermediate shaft, and the outer edge of the retaining ring is connected to the sliding shaft through three hexagonal bolts; a clamping block fixture is sleeved on the outer side of the middle part of the sliding shaft. Compared with the prior art, the utility model provides a test fixture for analyzing the factors affecting the sliding force of the intermediate shaft, and the non-destructive interchangeable assembly between the spring, the slideway, the sliding shaft, and the sliding tube is realized by the retaining ring fixing fixture and the clamping block fixture, thereby reducing the influence between different batches of the same parts, improving the utilization rate of parts, reducing the test cost, and quickly finding the key parts affecting the sliding force in the sliding pair, providing a direction for further optimizing the parts."

[0004] Based on the above, the applicant believes that there are the following defects:

[0005] The test tool for analyzing the factors affecting the sliding force of the intermediate shaft includes a retaining ring and a hexagonal bolt. The retaining ring is sleeved on the top of the sliding shaft of the intermediate shaft. The outer edge of the retaining ring is connected to the sliding shaft by three hexagonal bolts. The tool is locked by a locking piece and the experiment is carried out. However, the locking and disassembly speed by the locking piece is slow, and the internal experimental shaft cannot be replaced quickly, which will increase the experimental cycle. Utility Model Content

[0006] The utility model aims to provide a test fixture for analyzing the factors affecting the sliding force of an intermediate shaft, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a test fixture for analyzing the factors affecting the sliding force of the intermediate shaft, comprising a sliding pair, the surface of which is provided with a clamping and fixing mechanism;

[0008] The clamp fixing mechanism comprises a lower clamp, the lower clamp is arranged at the bottom of the sliding pair surface, the upper clamp is arranged at the top of the lower clamp, and a rotating part is arranged at the rear ends of the lower clamp and the upper clamp, the front side of the lower clamp is fixedly connected with a connecting block 1, the top of the connecting block 1 is provided with a spring opening, the front side of the upper clamp is fixedly connected with a connecting block 2, the surface of the connecting block 2 is provided with a through opening, a spring column is fixedly connected inside the spring opening, a spring sleeve telescopic column is arranged inside the spring opening, a fixing column is arranged inside the through opening, a fixing plate is fixedly connected to the top of the fixing column, a handle is fixedly connected to the top of the fixing plate, and a telescopic column is fixedly connected to the bottom of the fixing plate, and the fixing is performed by the through opening, the spring column and the spring sleeve telescopic column arranged on the surfaces of the lower clamp and the upper clamp, and the assembly has a good fixing effect, and a good fixing effect can be achieved by the elastic force of the spring column, and at the same time, the spring column and the spring sleeve telescopic column can be quickly pushed out from the through opening by the fixing column, so that the lower clamp and the upper clamp can be quickly disassembled, thereby replacing the internal experimental device.

[0009] Preferably, the lower clamp and one end of the upper clamp are connected together through a rotating member.

[0010] Preferably, the spring column is arranged inside the spring sleeve telescopic column, four groups of the spring column and the spring sleeve telescopic column are arranged, and four groups of the spring openings are arranged.

[0011] Preferably, the fixing columns are provided in four groups, the through openings are provided in four groups, the telescopic columns are fixedly connected between the fixing plate and the second connecting block, and the telescopic columns are provided in two groups.

[0012] Preferably, the through openings and the spring openings correspond one to one.

[0013] Preferably, the left end of the sliding pair is rotatably connected to an upper universal joint, and the right end of the sliding pair is rotatably connected to a lower universal joint.

[0014] Compared with the prior art, the utility model provides a test fixture for analyzing the factors affecting the sliding force of the intermediate shaft, which has the following beneficial effects:

[0015] The test fixture for analyzing the factors affecting the sliding force of the intermediate shaft is provided with a clamp fixing mechanism, which is fixed by means of through-holes, spring columns and spring sleeve telescopic columns provided on the surfaces of the lower clamp and the upper clamp. The assembly has a good fixing effect, and a good fixing effect can be achieved through the elastic force of the spring column. At the same time, the spring column and the spring sleeve telescopic column can be quickly pushed out from the inside of the through-hole through the provided fixing column, so that the lower clamp and the upper clamp can be quickly disassembled, thereby replacing the internal experimental devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the clamping and fixing mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of a separated view of the clamping and fixing mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the spring column structure of the utility model.

[0021] In the figure: 1, sliding pair; 2, upper universal joint; 3, lower universal joint; 4, clamp fixing mechanism; 41, lower clamp; 42, upper clamp; 421, rotating member; 43, connecting block 1; 431, spring opening; 44, connecting block 2; 441, through opening; 45, spring column; 46, spring sleeve telescopic column; 47, fixed column; 48, fixed plate; 49, handle; 401, telescopic column. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The utility model provides the following technical solutions:

[0025] Embodiment 1

[0026] See also Figure 1-4 A test fixture for analyzing factors affecting the sliding force of an intermediate shaft comprises a sliding pair 1, and a clamping fixing mechanism 4 is provided on the surface of the sliding pair 1;

[0027] The clamp fixing mechanism 4 includes a lower clamp 41, which is arranged at the bottom of the surface of the sliding pair 1, an upper clamp 42 is arranged on the top of the lower clamp 41, and a rotating member 421 is arranged at the rear ends of the lower clamp 41 and the upper clamp 42. The front of the lower clamp 41 is fixedly connected to a connecting block 1 43, and a spring opening 431 is opened on the top of the connecting block 1 43. The front of the upper clamp 42 is fixedly connected to a connecting block 2 44, and a through opening 441 is opened on the surface of the connecting block 2 44. A spring column 45 is fixedly connected inside the spring opening 431, and a spring sleeve telescopic column 46 is arranged inside the spring opening 431. A fixed column 47 is arranged inside the through opening 441, and the top of the fixed column 47 The lower part of the fixing plate 48 is fixedly connected with a fixing plate 48, the top of the fixing plate 48 is fixedly connected with a handle 49, and the bottom of the fixing plate 48 is fixedly connected with a telescopic column 401. The fixing is performed through the through-hole 441, the spring column 45 and the spring sleeve telescopic column 46 provided on the surface of the lower clamp 41 and the upper clamp 42. The assembly has a good fixing effect, and the elastic force of the spring column 45 can achieve a good fixing effect. At the same time, the spring column 45 and the spring sleeve telescopic column 46 can be quickly pushed out from the inside of the through-hole 441 through the fixed column 47, so that the lower clamp 41 and the upper clamp 42 can be quickly disassembled, so as to replace the internal experimental device;

[0028] The lower clamp 41 and one end of the lower clamp 41 are connected together through a rotating member 421;

[0029] The spring column 45 is arranged inside the spring sleeve telescopic column 46, four groups of the spring column 45 and the spring sleeve telescopic column 46 are arranged, and four groups of the spring openings 431 are arranged;

[0030] There are four groups of fixed columns 47, four groups of through openings 441, and two groups of telescopic columns 401 are fixedly connected between the fixed plate 48 and the second connecting block 44;

[0031] The through opening 441 and the spring opening 431 correspond one to one;

[0032] The left end of the sliding pair 1 is rotatably connected to an upper universal joint 2, and the right end of the sliding pair 1 is rotatably connected to a lower universal joint 3.

[0033] In actual operation, when the device is used, the sliding pair 1, the upper universal joint 2 and the lower universal joint 3 to be tested are connected together and fixed by the clamp fixing mechanism 4. The angle of the clamp fixing mechanism 4 is adjusted according to the size of the device, the lower clamp 41 and the upper clamp 42 are connected together, and the spring column 45 and the spring sleeve telescopic column 46 are clamped inside the through hole 441. The lower clamp 41 and the upper clamp 42 can be connected together, and the device can be tested. When it is necessary to replace the internal components, the fixing plate 48 is pressed down by the handle 49. In coordination with the setting of the telescopic column 401, the fixed column 47 is pressed down, the spring column 45 and the spring-connected telescopic column 46 are pushed out from the inside of the through-hole 441, and pressed back into the inside of the spring hole 431. At this time, the lower clamp 41 and the upper clamp 42 can be separated, so that the sliding pair 1, the upper universal joint 2 and the lower universal joint 3 can be replaced, and experiments can be carried out on multiple groups of different components. Through the setting of this mechanism, non-destructive interchangeable assembly of multiple groups of components can be achieved, the utilization rate of parts is improved, the components can be quickly replaced and recorded, so as to quickly find out the key parts that affect the sliding force in the sliding pair 1.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A test fixture for analyzing factors affecting the sliding force of an intermediate shaft, comprising a sliding pair (1), characterized in that: The surface of the sliding pair (1) is provided with a clamping and fixing mechanism (4); The clamp fixing mechanism (4) comprises a lower clamp (41), the lower clamp (41) is arranged at the bottom of the surface of the sliding pair (1), an upper clamp (42) is arranged on the top of the lower clamp (41), a rotating member (421) is arranged at the rear ends of the lower clamp (41) and the upper clamp (42), the front side of the lower clamp (41) is fixedly connected to a connecting block 1 (43), the top of the connecting block 1 (43) is provided with a spring opening (431), and the front side of the upper clamp (42) is fixedly connected to a connecting block 2 (44), A through opening (441) is provided on the surface of the second connection block (44); a spring column (45) is fixedly connected inside the spring opening (431); a spring sleeve telescopic column (46) is arranged inside the spring opening (431); a fixed column (47) is arranged inside the through opening (441); a fixed plate (48) is fixedly connected to the top of the fixed column (47); a handle (49) is fixedly connected to the top of the fixed plate (48); and a telescopic column (401) is fixedly connected to the bottom of the fixed plate (48).

2. The test fixture for analyzing the factors affecting the sliding force of the intermediate shaft according to claim 1, characterized in that: The lower clamp (41) and one end of the lower clamp (41) are connected together via a rotating member (421).

3. The test tool for analyzing the factors affecting the sliding force of the intermediate shaft according to claim 1, characterized in that: The spring column (45) is arranged inside the spring sleeve telescopic column (46), the spring column (45) and the spring sleeve telescopic column (46) are arranged in four groups, and the spring opening (431) is arranged in four groups.

4. The test fixture for analyzing the factors affecting the sliding force of the intermediate shaft according to claim 1, characterized in that: The fixed columns (47) are provided in four groups, the through openings (441) are provided in four groups, the telescopic columns (401) are fixedly connected between the fixed plate (48) and the second connecting block (44), and the telescopic columns (401) are provided in two groups.

5. The test tool for analyzing the factors affecting the sliding force of the intermediate shaft according to claim 1, characterized in that: The through opening (441) and the spring opening (431) correspond one to one.

6. The test fixture for analyzing the factors affecting the sliding force of the intermediate shaft according to claim 1, characterized in that: The left end of the sliding pair (1) is rotatably connected to an upper universal joint (2), and the right end of the sliding pair (1) is rotatably connected to a lower universal joint (3).

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