Shafting assembly clearance measurer and measuring method

Abstract

The invention relates to the technical field of measuring devices, in particular to a shafting assembly clearance measurer and a measuring method, and the shafting assembly clearance measurer comprises a mounting frame; the supporting frame is arranged on the upper end face of the mounting frame and used for supporting a shafting assembly; the measuring component is supported on a sleeve of the shafting assembly and is used for measuring the axial displacement of a mounting shaft of the shafting assembly; the clamping assembly is arranged on the upper end face of the mounting frame, and the clamping assembly is used for clamping the shafting assembly; and the axial moving assembly is arranged on the supporting frame, and the axial moving assembly is used for pushing the mounting shaft to move in the axial direction. According to the invention, the displacement of the mounting shaft of the shafting assembly can be measured conveniently, secondary disassembly and assembly are avoided, and the reliability of the shafting assembly is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of measuring tools, and in particular to a shaft system assembly clearance measuring device and a measuring method. Background Art

[0002] All retarders installed in the middle of the vehicle's drive shaft contain a shaft assembly. Currently, the shaft assembly of the retarder is installed on the mounting shaft with two tapered roller bearings mounted back to back. The most important feature of this tapered roller bearing installation method is that there is axial play on the mounting shaft. There is no special device to measure the axial play of the mounting shaft of the shaft assembly, and the measurement of the mounting shaft play of the shaft assembly is concentrated on the retarder. If the mounting shaft play of the shaft assembly does not meet the requirements, it is necessary to rework and reassemble the retarder and then measure it again until the mounting shaft play of the shaft assembly meets the requirements. This process is too complicated and the operation is cumbersome; and the error caused by the secondary disassembly and assembly is very large, which greatly reduces the reliability of the shaft assembly of the retarder.

[0003] Therefore, a shaft system assembly clearance measuring device and a measuring method are needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a shaft system assembly clearance measuring device and a measuring method, which are convenient for measuring the installation shaft movement of the shaft system assembly, avoiding secondary disassembly and assembly, and ensuring the reliability of the shaft system assembly.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Shaft assembly clearance measuring device, including:

[0007] Mounting frame;

[0008] A support frame, the support frame is arranged on the upper end surface of the mounting frame and is used to support the shaft system assembly;

[0009] A measuring assembly, the measuring assembly being supported on a sleeve of the shafting assembly and being used to measure the axial play of the mounting shaft of the shafting assembly;

[0010] A clamping assembly, the clamping assembly is arranged on the upper end surface of the mounting frame, and the clamping assembly is used to clamp the shaft system assembly;

[0011] An axial movement component is arranged on the support frame, and the axial movement component is used to push the installation shaft to move axially.

[0012] In some embodiments, the measuring assembly includes a measuring bracket and a dial indicator. The measuring bracket can be supported on a sleeve of the shaft system assembly. The dial indicator is arranged on the measuring bracket, and the measuring head of the dial indicator can abut against the end cover of the mounting shaft end.

[0013] In some embodiments, the clamping assembly includes a clamping bracket, a clamping jaw and a first driving member, the clamping bracket is fixedly arranged on the upper end surface of the mounting frame, the clamping jaw is rotatably arranged on the clamping bracket, the first driving member is fixedly arranged on the upper end surface of the mounting frame, and the first driving member can drive the clamping jaw to rotate relative to the clamping bracket to press and clamp the shaft system assembly.

[0014] In some embodiments, the axial movement assembly includes a second driving member, a connecting rod and a moving control member. The second driving member is arranged on the bottom plate of the mounting frame. One end of the connecting rod is transmission-connected to the second driving member. The other end of the connecting rod is provided with the moving control member. The moving control member cooperates with the shaft end flange at the lower end of the mounting shaft. The second driving member can drive the moving control member to perform lifting and lowering movements through the connecting rod to drive the mounting shaft to move axially.

[0015] In some embodiments, the movable control member includes an upper plate and a lower plate connected to each other, the lower plate is arranged on the connecting rod, a U-shaped receiving groove is formed between the upper plate and the lower plate, and the shaft end flange is located in the U-shaped receiving groove.

[0016] In some embodiments, a rotation drive assembly is further included, wherein the rotation drive assembly is used to drive the installation shaft to rotate for centering.

[0017] In some embodiments, the rotation drive assembly includes a mounting seat, a third drive member and a transmission shaft. The mounting seat is fixedly disposed on an end of the connecting rod away from the second drive member. The third drive member is disposed in the mounting seat, and the third drive member is connected to the transmission shaft. The transmission shaft is transmission-connected to the movable control member. The third drive member can drive the movable control member through the transmission shaft to drive the mounting shaft to rotate.

[0018] In some embodiments, a guide plate is further included, wherein the guide plate is fixedly connected to the mounting seat, and the guide plate is sleeved on a support column of the mounting frame.

[0019] In some embodiments, a U-shaped groove is provided on the support frame for positioning the shaft system assembly.

[0020] The measuring method uses the shaft assembly clearance measuring device as described above to measure the installation shaft play of the shaft assembly, and comprises the following steps:

[0021] S1. Place the shaft assembly on the support frame;

[0022] S2, placing the measuring assembly on the sleeve of the shaft system assembly, and clamping and fixing the shaft system assembly with a clamping assembly;

[0023] S3, rotating the mounting shaft of the shaft system assembly for centering;

[0024] S4, start the axial moving component to push the installation shaft to move axially upward to the highest position, then pull the installation shaft to move axially downward to the lowest position, and the measuring component collects data at the highest position and the lowest position.

[0025] Beneficial effects of the present invention:

[0026] The present invention provides a shaft assembly clearance measuring device, wherein a support frame and a clamping assembly are installed on the upper end surface of the mounting frame, and an axial movement assembly is provided on the mounting frame. When measuring the movement of the mounting shaft of the shaft assembly, the shaft assembly is placed on the support frame and clamped and fixed by the clamping assembly, and the measuring assembly is placed on the sleeve of the shaft assembly. The mounting shaft can be driven to move axially by the axial movement assembly, so that the movement amount of the mounting shaft can be obtained by the measuring assembly. Since the shaft assembly can be directly fixed and the movement of the mounting shaft can be measured by the shaft assembly clearance measuring device, the difficulty of measurement is reduced, and the operation is convenient, thereby avoiding affecting the reliability of the shaft assembly.

[0027] A measuring method provided by the present invention uses the shaft assembly clearance measuring device as described above to measure the installation shaft movement of the shaft assembly, which is convenient for measuring the installation shaft movement of the shaft assembly, avoids secondary disassembly and assembly, and ensures the reliability of the shaft assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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 of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0029] Figure 1 It is a schematic diagram of a shaft assembly clearance measuring device of the present invention;

[0030] Figure 2 It is a cross-sectional view of the shaft system assembly.

[0031] In the figure:

[0032] 100. Shaft assembly; 101. Mounting shaft; 102. Tapered roller bearing; 103. Sleeve; 104. End cover; 105. Locking bolt; 106. Shaft end flange; 1. Mounting frame; 11. Base plate; 12. Support column; 13. Support foot; 2. Support frame; 3. Measuring assembly; 31. Dial indicator; 32. Measuring bracket; 4. Clamping assembly; 41. First drive member; 411. Support; 42. Clamping bracket; 43. Clamping claw; 5. Axial movement assembly; 51. Second drive member; 52. Connecting rod; 53. Moving control member; 531. Upper plate; 532. Lower plate; 54. Guide plate; 6. Rotary drive assembly; 61. Third drive member; 62. Mounting seat; 63. Transmission shaft. DETAILED DESCRIPTION

[0033] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0034] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0035] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0036] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0037] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0038] When measuring the shaft movement of the shaft assembly during installation, in order to facilitate operation, avoid secondary disassembly and ensure the reliability of the shaft assembly, such as Figure 1-Figure 2 As shown, the present invention provides a shaft system assembly clearance measuring device, which comprises a mounting frame 1, a support frame 2, a measuring component 3, a clamping component 4 and an axial moving component 5.

[0039] Among them, the support frame 2 is arranged on the upper end surface of the mounting frame 1, and the support frame 2 is used to support the shaft system assembly 100. The measuring component 3 is supported on the sleeve 103 of the shaft system assembly 100, and the measuring component 3 is used to measure the axial movement of the mounting shaft 101 of the shaft system assembly 100. The clamping component 4 is arranged on the upper end surface of the mounting frame 1, and the clamping component 4 is used to clamp the shaft system assembly 100. The axial moving component 5 is arranged on the support frame 2, and the axial moving component 5 is used to push the mounting shaft 101 to move along the axial direction.

[0040] Since the shaft assembly clearance measuring device can directly fix the shaft assembly 100 and measure the movement of the mounting shaft 101, the difficulty of measurement is reduced, and the operation is convenient, thus avoiding affecting the reliability of the shaft assembly 100.

[0041] In some embodiments, the measuring assembly 3 includes a measuring bracket 32 ​​and a dial indicator 31. The measuring bracket 32 ​​can be supported on the sleeve 103 of the shaft system assembly 100. The dial indicator 31 is arranged on the measuring bracket 32, and the measuring head of the dial indicator 31 can abut against the end cover 104 at the end of the installation shaft 101. Specifically, the end cover 104 is fixed to the shaft end of the installation shaft 101 by a locking bolt 105. The measuring bracket 32 ​​is sleeved on the installation shaft 101, and a slot is provided on the upper end surface of the measuring bracket 32. The dial indicator 31 is clamped in the slot, and the measuring head of the dial indicator 31 extends relative to the slot and abuts against the end cover 104. By setting the measuring bracket 32, it is convenient to install the dial indicator 31, and by using the dial indicator 31, it is possible to ensure accurate measurement of the movement of the installation shaft 101. And according to the movement, the adjustment gasket corresponding to the shaft system assembly 100 is selected and installed on the installation shaft 101. In this way, the adjustment can be completed in one go without the need to disassemble or assemble the mounting shaft 101 and the tapered roller bearing 102 .

[0042] In some embodiments, the clamping assembly 4 includes a clamping bracket 42, a clamping jaw 43 and a first driving member 41. The clamping bracket 42 is fixedly arranged on the upper end surface of the mounting frame 1, the clamping jaw 43 is rotatably arranged on the clamping bracket 42, and the first driving member 41 is fixedly arranged on the upper end surface of the mounting frame 1, and the first driving member 41 can drive the clamping jaw 43 to rotate relative to the clamping bracket 42 to press and clamp the shaft system assembly 100. In this embodiment, the first driving member 41 is a cylinder, and the first driving member 41 is fixed to the upper end surface of the mounting frame 1 through a support 411. When the shaft system assembly 100 is clamped, the cylinder is started, and the piston rod of the cylinder extends to push the clamping jaw 43 to rotate relative to the clamping bracket 42, so that the end of the clamping jaw 43 is clamped against the shaft system assembly 100 to play a fixing role. In other implementations, the clamping assembly 4 can also directly use a clamping cylinder, and no excessive restrictions are made here.

[0043] In some embodiments, the axial movement assembly 5 includes a second driving member 51, a connecting rod 52 and a moving control member 53. The second driving member 51 is arranged on the bottom plate 11 of the mounting frame 1. One end of the connecting rod 52 is connected to the second driving member 51 by transmission. The other end of the connecting rod 52 is provided with a moving control member 53. The moving control member 53 cooperates with the shaft end flange 106 at the lower end of the mounting shaft 101. The second driving member 51 can drive the moving control member 53 to move up and down through the connecting rod 52 to drive the mounting shaft 101 to move axially. Specifically, in this embodiment, the second driving member 51 is a cylinder. The cylinder is fixedly arranged on the bottom plate 11 of the mounting frame 1, and the piston rod of the second driving member 51 is connected to the connecting rod 52 through a coupling. By controlling the extension and retraction of the piston rod, the moving control member 53 can be driven to move up and down through the connecting rod 52. The moving control member 53 cooperates with the shaft end flange 106, thereby driving the shaft end flange 106 to move, and then driving the mounting shaft 101 fixedly connected to the shaft end flange 106 to move. In other embodiments, a motor-driven lead screw nut structure may be used to drive the axial movement of the mounting shaft 101 , and no further restrictions are imposed herein.

[0044] In some embodiments, the moving control member 53 includes an upper plate 531 and a lower plate 532 connected to each other, the lower plate 532 is arranged on the connecting rod 52, a U-shaped receiving groove is formed between the upper plate 531 and the lower plate 532, and the shaft end flange 106 is located in the U-shaped receiving groove. Through the above arrangement, when the second driving member 51 drives the connecting rod 52 to move upward, the lower plate 532 abuts against the shaft end flange 106, thereby pushing the shaft end flange 106 to move upward with the installation shaft 101. When the second driving member 51 drives the connecting rod 52 to move downward, the upper plate 531 abuts against the shaft end flange 106, thereby pulling the shaft end flange 106 to drive the installation shaft 101 to move downward.

[0045] In some embodiments, the shaft assembly clearance measuring device further includes a rotation drive assembly 6, which is used to drive the installation shaft 101 to rotate for centering. By providing the rotation drive assembly 6, the installation shaft 101 can be driven to rotate, so that the tapered rollers in the tapered roller bearing 102 can be evenly distributed, which plays a role in centering the installation shaft 101.

[0046] In some embodiments, the rotation drive assembly 6 includes a mounting seat 62, a third driving member 61 and a transmission shaft 63. The mounting seat 62 is fixedly arranged at one end of the connecting rod 52 away from the second driving member 51, and the third driving member 61 is arranged in the mounting seat 62, and the third driving member 61 is connected to the transmission shaft 63, and the transmission shaft 63 is in transmission connection with the moving control member 53, and the third driving member 61 can drive the moving control member 53 to drive the mounting shaft 101 to rotate through the transmission shaft 63. Specifically, in this embodiment, the third driving member 61 is a motor, and the motor cooperates with a reducer, the reducer is fixedly arranged on the mounting seat 62, and the output shaft of the reducer is connected to the transmission shaft 63. The motor drives the reducer to work, and the output shaft of the reducer drives the transmission shaft 63 to rotate, and the transmission shaft 63 drives the moving control member 53 to rotate. The lower plate 532 or the upper plate 531 of the moving control member 53 is in contact with the shaft end flange 106, and can drive the shaft end flange 106 to rotate under the action of friction. In order to ensure that the transmission shaft 63 can effectively drive the movable control member 53 to rotate, the transmission shaft 63 is a spline shaft. The transmission shaft 63 is spline-matched with the output shaft of the reducer, and the transmission shaft 63 is spline-matched with the movable control member 53.

[0047] In some embodiments, the shaft assembly clearance measuring device further includes a guide plate 54, which is fixedly connected to the mounting seat 62, and the guide plate 54 is sleeved on the support column 12 of the mounting frame 1. Specifically, in this embodiment, the mounting frame 1 is provided with four support columns 12, and four mounting holes are provided on the guide plate 54, and sliding guide sleeves are provided at the mounting holes. By providing the guide plate 54, when the second driving member 51 drives the connecting rod 52 to move, the mounting seat 62 is lifted and lowered accordingly. In this process, the guide plate 54 connected to the mounting seat 62 can only move along the axial direction of the support column 12. The cooperation between the support column 12 and the guide plate 54 can play a guiding role.

[0048] In some embodiments, a U-shaped groove is provided on the support frame 2 for positioning the shaft assembly 100. Through the above arrangement, it is convenient to quickly determine the installation position of the shaft assembly 100 on the support frame 2.

[0049] In some embodiments, a support foot 13 is installed at the lower corner of the bottom plate 11 of the mounting frame 1, and the installation height of the support foot 13 can be adjusted. When measuring the movement of the mounting shaft 101, the horizontality of the mounting frame 1 can be adjusted by adjusting the support foot 13.

[0050] This embodiment also provides a measurement method, using the above shaft assembly clearance measuring device to measure the movement of the installation shaft 101 of the shaft assembly 100, including the following steps:

[0051] S1, placing the shaft system assembly 100 on the support frame 2;

[0052] S2, placing the measuring component 3 on the sleeve 103 of the shaft system assembly 100, and clamping and fixing the shaft system assembly 100 with the clamping component 4;

[0053] S3, rotating the installation shaft 101 of the shaft system assembly 100 for centering. Specifically, the installation shaft 101 can be centered by rotating the installation shaft 101 one circle in both the clockwise direction and the counterclockwise direction;

[0054] S4, start the axial moving component 5, push the installation shaft 101 to move axially upward to the highest position, then pull the installation shaft 101 to move axially downward to the lowest position, and the measuring component 3 collects data at the highest and lowest positions.

[0055] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Shaft assembly clearance measuring device, characterized in that: include: Mounting frame (1); A support frame (2), the support frame (2) being arranged on the upper end surface of the mounting frame (1) and being used to support the shaft system assembly (100); A measuring component (3), the measuring component (3) being supported on a sleeve (103) of the shaft system assembly (100) and being used to measure the axial movement of a mounting shaft (101) of the shaft system assembly (100); A clamping assembly (4), the clamping assembly (4) being arranged on the upper end surface of the mounting frame (1), the clamping assembly (4) being used to clamp the shaft system assembly (100); An axial movement component (5), wherein the axial movement component (5) is arranged on the support frame (2), and the axial movement component (5) is used to push the installation shaft (101) to move along the axial direction.

2. The shafting assembly clearance measuring device according to claim 1, characterized in that: The measuring assembly (3) comprises a measuring bracket (32) and a dial indicator (31); the measuring bracket (32) can be supported on a sleeve (103) of the shaft system assembly (100); the dial indicator (31) is arranged on the measuring bracket (32); and the measuring head of the dial indicator (31) can abut against an end cover (104) at the end of the mounting shaft (101).

3. The shaft assembly clearance measuring device according to claim 1, characterized in that: The clamping assembly (4) comprises a clamping bracket (42), a clamping claw (43) and a first driving member (41); the clamping bracket (42) is fixedly arranged on the upper end surface of the mounting frame (1); the clamping claw (43) is rotatably arranged on the clamping bracket (42); the first driving member (41) is fixedly arranged on the upper end surface of the mounting frame (1), and the first driving member (41) can drive the clamping claw (43) to rotate relative to the clamping bracket (42) to press and clamp the shaft system assembly (100).

4. The shafting assembly clearance measuring device according to claim 1, characterized in that: The axial movement component (5) comprises a second driving member (51), a connecting rod (52) and a moving control member (53); the second driving member (51) is arranged on the bottom plate (11) of the mounting frame (1); one end of the connecting rod (52) is drivingly connected to the second driving member (51); the other end of the connecting rod (52) is provided with the moving control member (53); the moving control member (53) cooperates with the shaft end flange (106) at the lower end of the mounting shaft (101); the second driving member (51) can drive the moving control member (53) to perform lifting movement through the connecting rod (52) to drive the mounting shaft (101) to move axially.

5. The shafting assembly clearance measuring device according to claim 4, characterized in that: The movable control member (53) comprises an upper plate (531) and a lower plate (532) which are connected to each other, wherein the lower plate (532) is arranged on the connecting rod (52), and a U-shaped receiving groove is formed between the upper plate (531) and the lower plate (532), and the shaft end flange (106) is located in the U-shaped receiving groove.

6. The shaft assembly clearance measuring device according to claim 4, characterized in that: It also includes a rotation drive assembly (6), wherein the rotation drive assembly (6) is used to drive the installation shaft (101) to rotate for centering.

7. The shafting assembly clearance measuring device according to claim 6, characterized in that: The rotation drive assembly (6) comprises a mounting seat (62), a third driving member (61) and a transmission shaft (63); the mounting seat (62) is fixedly arranged at one end of the connecting rod (52) away from the second driving member (51); the third driving member (61) is arranged in the mounting seat (62), and the third driving member (61) is connected to the transmission shaft (63); the transmission shaft (63) is transmission-connected to the movable control member (53); the third driving member (61) can drive the movable control member (53) through the transmission shaft (63) to drive the mounting shaft (101) to rotate.

8. The shafting assembly clearance measuring device according to claim 7, characterized in that: It also comprises a guide plate (54), wherein the guide plate (54) is fixedly connected to the mounting seat (62), and the guide plate (54) is sleeved on the support column (12) of the mounting frame (1).

9. The shaft assembly clearance measuring device according to claim 1, characterized in that: The support frame (2) is provided with a U-shaped groove for positioning the shaft system assembly (100).

10. A measuring method, characterized in that Measuring the play of the mounting shaft (101) of the shaft assembly (100) using the shaft assembly clearance measuring device as claimed in any one of claims 1 to 9 comprises the following steps: S1. Place the shaft system assembly (100) on the support frame (2); S2, placing the measuring component (3) on the sleeve (103) of the shaft system assembly (100), and clamping and fixing the shaft system assembly (100) using the clamping component (4); S3, rotating the mounting shaft (101) of the shaft system assembly (100) for centering; S4, start the axial moving component (5), push the installation shaft (101) to move axially upward to the highest position, then pull the installation shaft (101) to move axially downward to the lowest position, and the measuring component (3) collects data at the highest position and the lowest position.

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