Shafting assembly clearance measurer

Abstract

The utility model relates to the technical field of measuring devices, in particular to a shafting assembly clearance measurer, which 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 utility model, 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] This utility model relates to the field of measuring tool technology, and in particular to a shaft assembly clearance measuring instrument. Background Technology

[0002] All retarders installed in the middle of a vehicle's driveshaft include a shaft assembly. Currently, the retarder's shaft assembly uses two tapered roller bearings mounted back-to-back on the mounting shaft. The most important characteristic of this tapered roller bearing mounting method is the existence of axial clearance in the mounting shaft. There is no dedicated device for measuring the axial movement of the mounting shaft of the shaft assembly; the movement is measured directly on the retarder itself. If the axial movement of the mounting shaft of the shaft assembly does not meet the requirements, the retarder must be reworked and reassembled before measurement, until the axial movement of the mounting shaft of the shaft assembly meets the requirements. This process is too complex and cumbersome; moreover, the error introduced by the secondary disassembly and reassembly is significant, greatly reducing the reliability of the retarder's shaft assembly.

[0003] Therefore, a shaft assembly clearance measuring instrument is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a shaft assembly clearance measuring device, which facilitates the measurement of shaft movement during installation of the shaft assembly, avoids secondary disassembly and assembly, and ensures the reliability of the shaft assembly.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Shaft assembly clearance measuring instrument, including:

[0007] Mounting rack;

[0008] A support frame, which is disposed on the upper end face of the mounting frame, is used to support the shaft assembly;

[0009] A measuring component, supported on a sleeve of the shaft assembly, is used to measure the axial movement of the mounting shaft of the shaft assembly;

[0010] A clamping assembly is disposed on the upper end face of the mounting bracket, and the clamping assembly is used to clamp the shaft assembly;

[0011] An axial movement assembly is disposed on the support frame and is used to push the mounting shaft to move axially.

[0012] In some embodiments, the measuring component includes a measuring bracket and a dial indicator. The measuring bracket is supported on a sleeve of the shaft assembly, the dial indicator is mounted on the measuring bracket, and the measuring head of the dial indicator is capable of abutting against the end cap of the mounting shaft.

[0013] In some embodiments, the clamping assembly includes a clamping bracket, a jaw, and a first driving member. The clamping bracket is fixedly disposed on the upper end face of the mounting bracket, the jaw is rotatably disposed on the clamping bracket, and the first driving member is fixedly disposed on the upper end face of the mounting bracket. The first driving member is capable of driving the jaw to rotate relative to the clamping bracket to press and clamp the shaft assembly.

[0014] In some embodiments, the axial movement assembly includes a second drive member, a connecting rod, and a movement control member. The second drive member is disposed on the base plate of the mounting bracket. One end of the connecting rod is connected to the second drive member in a transmission manner, and the other end of the connecting rod is provided with the movement control member. The movement control member cooperates with the shaft end flange at the lower end of the mounting shaft. The second drive member can drive the movement control member to perform lifting and lowering movements through the connecting rod, so as to drive the mounting shaft to move axially.

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

[0016] In some embodiments, a rotary drive assembly is further included, which drives the mounting shaft to rotate for alignment.

[0017] In some embodiments, the rotary drive assembly includes a mounting base, a third drive member, and a drive shaft. The mounting base is fixedly disposed at one end of the connecting rod away from the second drive member. The third drive member is disposed in the mounting base and connected to the drive shaft. The drive shaft is drively connected to the motion control member. The third drive member can drive the motion control member to rotate the mounting shaft via the drive shaft.

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

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

[0020] In some embodiments, a support foot is installed at the corner of the lower end of the base plate of the mounting bracket.

[0021] The beneficial effects of this utility model are:

[0022] This utility model provides a shaft assembly clearance measuring device. A support frame and clamping assembly are mounted on the upper surface of the mounting bracket, and an axial movement component is provided on the mounting bracket. When measuring the runout of the mounting shaft of the shaft assembly, the shaft assembly is placed on the support frame and clamped in place using the clamping assembly. The measuring component is then placed on the sleeve of the shaft assembly. The axial movement component drives the mounting shaft to move axially, thereby obtaining the runout amount of the mounting shaft using the measuring component. Because this shaft assembly clearance measuring device can directly fix the shaft assembly and measure the runout of the mounting shaft, the measurement difficulty is reduced, and it is easy to operate, avoiding any impact on the reliability of the shaft assembly. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a shaft assembly clearance measuring device according to the present invention;

[0025] Figure 2 This is a sectional view of the shaft assembly.

[0026] In the picture:

[0027] 100. Shaft assembly; 101. Mounting shaft; 102. Tapered roller bearing; 103. Sleeve; 104. End cover; 105. Locking bolt; 106. Shaft end flange; 1. Mounting bracket; 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 component; 411. Support; 42. Clamping bracket; 43. Gripper; 5. Axial movement assembly; 51. Second drive component; 52. Connecting rod; 53. Movement control component; 531. Upper plate; 532. Lower plate; 54. Guide plate; 6. Rotary drive assembly; 61. Third drive component; 62. Mounting base; 63. Drive shaft. Detailed Implementation

[0028] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0029] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0030] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0031] In this application, those skilled in the art will understand 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.

[0032] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0033] When measuring the shaft movement of the shaft assembly, to facilitate operation, avoid secondary disassembly and assembly, and ensure the reliability of the shaft assembly, such as... Figures 1-2 As shown, this utility model provides a shaft assembly clearance measuring device. The shaft assembly clearance measuring device includes a mounting frame 1, a support frame 2, a measuring component 3, a clamping component 4, and an axial movement component 5.

[0034] The support frame 2 is mounted on the upper surface of the mounting frame 1 and supports the shaft assembly 100. The measuring component 3 is supported on the sleeve 103 of the shaft assembly 100 and measures the axial movement of the mounting shaft 101 of the shaft assembly 100. The clamping component 4 is mounted on the upper surface of the mounting frame 1 and clamps the shaft assembly 100. The axial movement component 5 is mounted on the support frame 2 and pushes the mounting shaft 101 to move axially.

[0035] Because the shaft assembly clearance measuring instrument can directly fix the shaft assembly 100 and measure the movement of the mounting shaft 101, the measurement difficulty is reduced and the operation is convenient, thus avoiding any impact on the reliability of the shaft assembly 100.

[0036] In some embodiments, the measuring component 3 includes a measuring bracket 32 ​​and a dial indicator 31. The measuring bracket 32 ​​is supported on the sleeve 103 of the shaft assembly 100. The dial indicator 31 is mounted on the measuring bracket 32, and its measuring head abuts against the end cap 104 at the end of the mounting shaft 101. Specifically, the end cap 104 is fixed to the shaft end of the mounting shaft 101 by locking bolts 105. The measuring bracket 32 ​​is sleeved on the mounting shaft 101, and a slot is provided on the upper end face of the measuring bracket 32. The dial indicator 31 is engaged in the slot, and its measuring head extends out relative to the slot and abuts against the end cap 104. By providing the measuring bracket 32, it is convenient to install the dial indicator 31. By using the dial indicator 31, the accurate measurement of the movement of the mounting shaft 101 can be ensured. Adjusting shims of the corresponding shaft assembly 100 are selected and installed on the mounting shaft 101 according to the amount of movement. This allows for a one-time adjustment without the need for disassembly and reassembly between the mounting shaft 101 and the tapered roller bearing 102.

[0037] In some embodiments, the clamping assembly 4 includes a clamping bracket 42, a jaw 43, and a first driving member 41. The clamping bracket 42 is fixedly disposed on the upper end face of the mounting frame 1, the jaw 43 is rotatably disposed on the clamping bracket 42, and the first driving member 41 is fixedly disposed on the upper end face of the mounting frame 1. The first driving member 41 can drive the jaw 43 to rotate relative to the clamping bracket 42 to press against the clamping shaft 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 face of the mounting frame 1 by a support 411. When clamping the shaft assembly 100, the cylinder is activated, and the piston rod of the cylinder extends to push the jaw 43 to rotate relative to the clamping bracket 42, thereby causing the end of the jaw 43 to abut against and clamp the shaft assembly 100, thus achieving a fixing effect. In other embodiments, the clamping assembly 4 can also directly use a clamping cylinder, which is not limited here.

[0038] In some embodiments, the axial movement assembly 5 includes a second driving member 51, a connecting rod 52, and a movement control member 53. The second driving member 51 is mounted on the base plate 11 of the mounting frame 1. One end of the connecting rod 52 is connected to the second driving member 51, and the other end of the connecting rod 52 is provided with the movement control member 53. The movement 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 movement control member 53 to move up and down through the connecting rod 52, thereby causing the mounting shaft 101 to move axially. Specifically, in this embodiment, the second driving member 51 is a cylinder. The cylinder is fixedly mounted on the base 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 movement control member 53 can be driven to move up and down through the connecting rod 52. The movement control member 53 cooperates with the shaft end flange 106, thereby causing the shaft end flange 106 to move, and thus causing the mounting shaft 101, which is fixedly connected to the shaft end flange 106, to move axially. In other embodiments, a motor-driven lead screw and nut structure can also be used to drive the axial movement of the mounting shaft 101, without further restrictions.

[0039] In some embodiments, the movement control member 53 includes an upper plate 531 and a lower plate 532 connected to each other. The lower plate 532 is disposed on the connecting rod 52, and a U-shaped receiving groove is formed between the upper plate 531 and the lower plate 532. The shaft end flange 106 is located in the U-shaped receiving groove. With 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 mounting 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 move the mounting shaft 101 downward.

[0040] In some embodiments, the shaft assembly clearance measuring device further includes a rotary drive assembly 6, which drives the mounting shaft 101 to rotate for alignment. By providing the rotary drive assembly 6, the mounting shaft 101 can be driven to rotate, thereby ensuring that the tapered rollers in the tapered roller bearing 102 are evenly distributed, thus achieving the function of aligning the mounting shaft 101.

[0041] In some embodiments, the rotary drive assembly 6 includes a mounting base 62, a third drive member 61, and a drive shaft 63. The mounting base 62 is fixedly disposed at the end of the connecting rod 52 away from the second drive member 51. The third drive member 61 is disposed in the mounting base 62 and is connected to the drive shaft 63. The drive shaft 63 is drively connected to the motion control member 53. The third drive member 61 can drive the motion control member 53 to rotate the mounting shaft 101 via the drive shaft 63. Specifically, in this embodiment, the third drive member 61 is a motor, which works in conjunction with a reducer. The reducer is fixedly disposed on the mounting base 62, and the output shaft of the reducer is connected to the drive shaft 63. The motor drives the reducer to work, and the output shaft of the reducer drives the drive shaft 63 to rotate, which in turn drives the motion control member 53 to rotate. The lower plate 532 or the upper plate 531 of the motion control member 53 abuts against the shaft end flange 106, and under the action of friction, it can drive the shaft end flange 106 to rotate. In order to ensure that the drive shaft 63 can effectively drive the movement control component 53 to rotate, the drive shaft 63 is a splined shaft. The drive shaft 63 is splined with the output shaft of the reducer, and the drive shaft 63 is splined with the movement control component 53.

[0042] In some embodiments, the shaft assembly clearance measuring device further includes a guide plate 54, which is fixedly connected to the mounting base 62 and sleeved on the support column 12 of the mounting frame 1. Specifically, in this embodiment, the mounting frame 1 has four support columns 12, and four mounting holes are provided on the guide plate 54, with sliding guide sleeves provided at the mounting holes. By providing the guide plate 54, the mounting base 62 moves up and down as the second driving member 51 drives the connecting rod 52. During this process, the guide plate 54 connected to the mounting base 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 provides a guiding function.

[0043] In some embodiments, the support frame 2 is provided with a U-shaped groove for positioning the shaft assembly 100. This arrangement facilitates the quick determination of the installation position of the shaft assembly 100 on the support frame 2.

[0044] In some embodiments, a support foot 13 is installed at the corner of the lower end of the base plate 11 of the mounting bracket 1, and the installation height of the support foot 13 is adjustable. When measuring the movement of the mounting shaft 101, the levelness of the mounting bracket 1 can be adjusted by adjusting the support foot 13.

[0045] This embodiment also provides a measurement method for measuring the runout of the mounting shaft 101 of the shaft assembly 100 using the shaft assembly clearance measuring instrument described above, including the following steps;

[0046] S1. Place the shaft assembly 100 onto the support frame 2;

[0047] S2. Place the measuring component 3 onto the sleeve 103 of the shaft assembly 100, and clamp and fix the shaft assembly 100 using the clamping component 4.

[0048] S3. Align the mounting shaft 101 of the rotating shaft assembly 100. Specifically, the mounting shaft 101 can be aligned by rotating it one revolution in both the clockwise and counterclockwise directions.

[0049] S4. Start the axial movement component 5, push the mounting shaft 101 upward along the axial direction to the highest position, and then pull the mounting shaft 101 downward along the axial direction to the lowest position. The measuring component 3 collects data at the highest and lowest positions.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A shaft assembly clearance measuring instrument, characterized in that, include: Mounting bracket (1); Support frame (2), which is disposed on the upper end face of the mounting frame (1) and is used to support the shaft assembly (100); Measurement component (3), which is supported on the sleeve (103) of the shaft assembly (100), is used to measure the axial movement of the mounting shaft (101) of the shaft assembly (100); A clamping assembly (4) is disposed on the upper end face of the mounting bracket (1) and is used to clamp the shaft assembly (100); An axial movement assembly (5) is disposed on the support frame (2) and is used to push the mounting shaft (101) to move axially.

2. The shaft assembly clearance measuring instrument according to claim 1, characterized in that, The measuring component (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 assembly (100). The dial indicator (31) is mounted on the measuring bracket (32), and the measuring head of the dial indicator (31) can abut against the end cap (104) of the mounting shaft (101).

3. The shaft assembly clearance measuring instrument according to claim 1, characterized in that, The clamping assembly (4) includes a clamping bracket (42), a jaw (43), and a first driving member (41). The clamping bracket (42) is fixedly disposed on the upper end face of the mounting bracket (1). The jaw (43) is rotatably disposed on the clamping bracket (42). The first driving member (41) is fixedly disposed on the upper end face of the mounting bracket (1), and the first driving member (41) can drive the jaw (43) to rotate relative to the clamping bracket (42) to press and clamp the shaft assembly (100).

4. The shaft assembly clearance measuring instrument according to claim 1, characterized in that, The axial movement assembly (5) includes a second drive member (51), a connecting rod (52), and a movement control member (53). The second drive member (51) is disposed on the base plate (11) of the mounting bracket (1). One end of the connecting rod (52) is connected to the second drive member (51) in a transmission manner. The other end of the connecting rod (52) is provided with the movement control member (53). The movement control member (53) cooperates with the shaft end flange (106) at the lower end of the mounting shaft (101). The second drive member (51) can drive the movement control member (53) to perform lifting and lowering movements through the connecting rod (52) so as to drive the mounting shaft (101) to move axially.

5. The shaft assembly clearance measuring instrument according to claim 4, characterized in that, The moving control component (53) includes an upper plate (531) and a lower plate (532) connected to each other. The lower plate (532) is disposed on the connecting rod (52). A U-shaped receiving groove is formed between the upper plate (531) and the lower plate (532). The shaft end flange (106) is located in the U-shaped receiving groove.

6. The shaft assembly clearance measuring instrument according to claim 4, characterized in that, It also includes a rotary drive assembly (6) for driving the mounting shaft (101) to rotate for centering.

7. The shaft assembly clearance measuring instrument according to claim 6, characterized in that, The rotary drive assembly (6) includes a mounting base (62), a third drive member (61), and a transmission shaft (63). The mounting base (62) is fixedly disposed at one end of the connecting rod (52) away from the second drive member (51). The third drive member (61) is disposed in the mounting base (62) and is connected to the transmission shaft (63). The transmission shaft (63) is connected to the motion control member (53). The third drive member (61) can drive the motion control member (53) to rotate the mounting shaft (101) through the transmission shaft (63).

8. The shaft assembly clearance measuring instrument according to claim 7, characterized in that, It also includes a guide plate (54), which is fixedly connected to the mounting base (62) and is sleeved on the support column (12) of the mounting frame (1).

9. The shaft assembly clearance measuring instrument according to claim 1, characterized in that, The support frame (2) has a U-shaped groove for positioning the shaft assembly (100).

10. The shaft assembly clearance measuring instrument according to claim 1, characterized in that, A support foot (13) is installed at the corner of the lower end of the base plate (11) of the mounting bracket (1).

Images