Walking speed reducer bearing clearance measuring tool with adjusting function

Abstract

The invention discloses a walking speed reducer bearing clearance measuring tool with an adjusting function, and relates to the technical field of measuring tools, the walking speed reducer bearing clearance measuring tool comprises a force application assembly which comprises a linear driving piece, and the linear driving piece is arranged in the middle of a pull seat; the pull seat is connected with one end of the pull claw, and the other end of the pull claw is provided with a hook claw; the clamping assembly comprises a stress disc and a plurality of supporting pieces. The middle of the stress disc is connected with the telescopic end of the linear driving piece. A plurality of supporting pieces are arranged on the side, away from the pulling base, of the stress disc. A hook claw at the other end of the pull claw is hooked with one end of a connecting seat or a bearing seat of the speed reducer, the supporting piece abuts against the other end of the bearing seat or the connecting seat, the stress disc is driven by the linear driving piece to move in the axial direction, the distance between the supporting piece and the hook claw is reduced, and an inner ring and an outer ring of the bearing generate axial relative displacement; the axial clearance of the bearing can be accurately measured in real time through the dial indicator; and when the axial clearance of the bearing is adjusted to a designed set range, the locking round nut is fastened, and locking of the bearing is completed.

Description

Technical Field

[0001] This invention relates to the field of measuring tooling technology, and in particular to a measuring tooling for measuring the bearing clearance of a travel reducer with an adjustable function. Background Technology

[0002] Travel reducers are widely used in various mechanical equipment. Tapered roller bearings, as a core component, provide reliable radial support and axial thrust to the reducer, which is crucial for ensuring stable equipment operation. Precise adjustment of axial clearance is key to maximizing bearing performance and extending its service life. However, due to differences in the structure of travel reducers, the clearance adjustment methods during bearing assembly also vary.

[0003] Currently, the industry commonly uses the method of adjusting the tightening torque of the locking nut to adjust the axial clearance of tapered roller bearings. However, this method has significant drawbacks, as it cannot accurately detect the actual axial clearance of the bearing and is difficult to meet the requirements of high-precision assembly.

[0004] Therefore, there is an urgent need to develop a measuring fixture for the bearing clearance of a travel reducer with adjustable function, so as to achieve accurate detection of the axial clearance of tapered roller bearings. Summary of the Invention

[0005] To address the above technical problems, this invention provides a tooling for measuring the bearing clearance of a travel reducer with an adjustable function. This tooling, in conjunction with a dial indicator, enables real-time and accurate detection of the axial clearance of tapered roller bearings, thereby overcoming the accuracy deficiencies of existing adjustment methods and ensuring assembly quality.

[0006] To achieve the above objectives, the present invention provides the following solution: This invention provides a tooling for measuring the bearing clearance of a travel reducer with an adjustable function, comprising: The force-applying component includes a linear drive, a pull base, and a pull claw; the linear drive is disposed in the middle of the pull base; the pull base is connected to one end of the pull claw, and the other end of the pull claw is provided with a hook; The clamping assembly includes a force-receiving plate and multiple support members; the middle part of the force-receiving plate is connected to the telescopic end of the linear drive member; the multiple support members are provided on the side of the force-receiving plate away from the pull base.

[0007] Optionally, the linear drive includes a tightening bolt, and the pull seat has a threaded hole in the middle; the tightening bolt passes through the threaded hole and is threadedly connected to the threaded hole.

[0008] Optionally, the pull seat has at least two adjustment slots on a plane perpendicular to the axial direction of the linear drive member, and one end of the pull claw is connected to the pull seat through the adjustment slots.

[0009] Optionally, one end of the pull claw is provided with a connecting part, and the connecting part is provided with a connecting hole along the axial direction of the linear drive component; the pull claw and the pull base are connected by bolts to the adjusting groove and the connecting hole.

[0010] Optionally, the connecting portion is located on the side of the pull seat away from the clamping assembly.

[0011] Optionally, the force-receiving plate has multiple adjustment slots on a plane perpendicular to the axial direction of the linear drive member, and the support member has a first limiting section at one end near the force-receiving plate, which is slidably disposed in the adjustment slots; the limiting section has a first force-bearing surface at one end away from the pull base, which abuts against the force-receiving plate.

[0012] Optionally, the adjusting channel is a first strip-shaped channel, the axial direction of the first strip-shaped channel being perpendicular to the axial direction of the linear drive member; the first limiting segment includes a first sliding rod with a smaller diameter and a first limiting head with a larger diameter, the first sliding rod sliding through the adjusting channel; along the circumferential direction of the force-receiving disc, the size of the first limiting head is larger than the size of the adjusting channel.

[0013] Optionally, the pull claw is provided with a limiting groove along the axial direction of the linear drive member, and the circumferential edge of the force receiving disk is provided with a second limiting part, which is slidably disposed in the limiting groove.

[0014] Optionally, the limiting groove is a second strip-shaped through groove, and the second limiting part includes a second sliding rod with a smaller diameter and a second limiting head with a larger diameter. The second sliding rod slides through the limiting groove. On a plane perpendicular to the axial direction of the linear drive member, the size of the second limiting head is larger than the size of the limiting groove.

[0015] The present invention achieves the following technical effects compared to the prior art: When using the adjustable bearing clearance measuring fixture for a travel reducer provided by this invention, firstly, hook the other end of the pull claw with one end of the reducer's connecting seat or bearing seat, while simultaneously placing the support member against the other end of the bearing seat or connecting seat to form a symmetrical force-bearing support structure. Subsequently, the linear drive member drives the force-bearing disc to move axially, thereby reducing the distance between the support member and the hook claw. After the force is stably transmitted through the pull seat, it drives the connecting seat and bearing seat to drive the inner and outer rings of the bearing to produce axial relative displacement, respectively. Then, a dial indicator is placed on the other end of the bearing seat to accurately measure the axial clearance of the bearing in real time. Once the bearing axial clearance is adjusted to the designed range, the locking nut is tightened in place, thus completing the bearing clearance adjustment and locking operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. 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 effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the adjustable travel reducer bearing clearance measuring fixture of the present invention when measuring the second bearing. Figure 2 This is a cross-sectional structural schematic diagram of the adjustable travel reducer bearing clearance measuring fixture of the present invention when measuring the second bearing. Figure 3 This is a three-dimensional structural diagram of the adjustable bearing clearance measuring fixture of the present invention when measuring the first bearing. Figure 4 This is a cross-sectional view of the bearing clearance measuring fixture for the adjustable travel reducer of the present invention when measuring the first bearing.

[0018] Explanation of reference numerals in the attached drawings: 01, First bearing; 02, Second bearing; 1. Tighten bolts; 2. Pull base; 3. Adjusting bolts; 4. Force plate; 5. Support component; 6. Locking round nut; 7. Connecting seat; 8. Pull claw; 9. Bearing seat. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: like Figures 1 to 4 As shown, this embodiment provides a measuring fixture for measuring the bearing clearance of a travel reducer with an adjustable function, including: The force-applying component includes a linear drive, a pull base 2, and a pull claw 8; the linear drive is located in the middle of the pull base 2; the pull base 2 is connected to one end of the pull claw 8, and the other end of the pull claw 8 is provided with a hook; The clamping assembly includes a force-bearing plate 4 and multiple support members 5; the middle part of the force-bearing plate 4 is connected to the telescopic end of the linear drive member; multiple support members 5 are provided on the side of the force-bearing plate 4 away from the pull seat 2.

[0021] When using the adjustable bearing clearance measuring fixture for a travel reducer provided by this invention, firstly, hook the other end of the pull claw 8 to one end of the reducer's connecting seat 7 or bearing seat 9, while simultaneously placing the support member 5 against the other end of the bearing seat 9 or connecting seat 7 to form a symmetrical force support structure. Subsequently, the linear drive member drives the force-bearing disk 4 to move axially, thereby reducing the distance between the support member 5 and the hook claw. After the force is stably transmitted through the pull seat 2, it drives the connecting seat 7 and bearing seat 9 to drive the inner and outer rings of the bearing to produce axial relative displacement, respectively. Then, a dial indicator is placed on the other end of the bearing seat 9 to accurately measure the axial clearance of the bearing in real time. When the bearing axial clearance is adjusted to the design setting range, the locking nut 6 is tightened in place, thus completing the bearing clearance adjustment and locking operation.

[0022] In this specific embodiment, the linear drive includes a tightening bolt 1, and a threaded hole is provided in the middle of the pull base 2; the tightening bolt 1 passes through the threaded hole and is threadedly connected to the threaded hole. By rotating the tightening bolt 1, the length of the tightening bolt 1 extending out of the pull base 2 is changed, so that the end of the tightening bolt 1 can push the force-receiving plate 4.

[0023] In other specific embodiments, the linear drive can be a device with linear drive, such as a linear motor, a lead screw structure, a cylinder or a hydraulic cylinder, as long as it can output a linear driving force and keep the force-bearing plate 4 in the required position.

[0024] The pull base 2 has at least two adjustment slots on a plane perpendicular to the axial direction of the linear drive component. One end of the pull claw 8 is connected to the pull base 2 through the adjustment slots. The adjustment slots are strip-shaped. By adjusting the connection position between the pull claw 8 and the adjustment slot, the distance between the two pull claws 8 is changed, thereby adapting to different sizes of travel reducers.

[0025] In this specific embodiment, the pull seat 2 adopts a crossbeam structure, with an adjustment groove provided at each end of the crossbeam. In other specific embodiments, the pull seat 2 may also adopt a tripod type, cross type, or disc type structure.

[0026] One end of the pull claw 8 is provided with a connecting part, and a connecting hole is provided on the connecting part along the axial direction of the linear drive component; the pull claw 8 is connected to the pull seat 2 by bolt connecting the adjusting groove and the connecting hole. A locking part can also be provided on the side of the connecting part facing the pull seat 2. The locking part includes a third sliding rod with a smaller diameter and a third limiting head with a larger diameter. The third sliding rod slides through the adjusting groove; along the circumferential direction of the force-receiving plate 4, the size of the third limiting head is larger than the size of the adjusting groove, so that the pull claw 8 can only slide back and forth within the range of the adjusting groove and will not fall off. When tightening the bolt 1, the force between the pull seat 2 and the pull claw 8 is transmitted through the locking part.

[0027] To improve the load-bearing capacity between the pull claw 8 and the pull seat 2, the connecting part is located on the side of the pull seat 2 away from the clamping assembly. The block-shaped part extends towards the tightening bolt 1, with its bottom surface abutting against the top surface of the pull seat 2. When tightening the bolt 1, the pull claw abuts against the connecting seat 7 or bearing seat 9, and the block-shaped part abuts against the pull seat 2, enabling the pull claw 8 to withstand the reaction force of the tightening bolt 1 pressing against the force-bearing plate 4.

[0028] The force-receiving plate 4 has multiple adjustment slots on a plane perpendicular to the axial direction of the linear drive component. The support component 5 has a first limiting section at one end near the force-receiving plate 4, which is slidably disposed in the adjustment slots. The limiting section has a first force-bearing surface at the end away from the pull seat 2, which abuts against the force-receiving plate 4.

[0029] In this specific embodiment, four adjustment slots are evenly arranged on the force-receiving disk 4 along the circumference. More specifically, the adjustment slot is a first strip-shaped slot, and the axial direction of the first strip-shaped slot is perpendicular to the axial direction of the linear drive component. The first limiting section includes a first sliding rod with a smaller diameter and a first limiting head with a larger diameter. The first sliding rod slides through the adjustment slot. Along the circumference of the force-receiving disk 4, the size of the first limiting head is larger than the size of the adjustment slot. After installation, the first limiting head is larger along the circumference of the force-bearing plate 4 and smaller along the radial direction of the force-bearing plate 4, and smaller than the width of the adjusting groove. Therefore, during installation, the smaller dimension of the first limiting head can be aligned with the width of the adjusting groove. After the first limiting head passes through the adjusting groove, it can be rotated 90 degrees so that the larger dimension of the first limiting head is aligned with the width of the adjusting groove. At this time, the first limiting head and the adjusting groove form an anti-detachment limiting structure, which can facilitate the installation and disassembly of the support 5 and the force-bearing plate 4, and reduce the possibility of the support 5 falling off the force-bearing plate 4 during use.

[0030] A limiting groove is provided on the pull claw 8 along the axial direction of the linear drive component, and a second limiting part is provided on the circumferential edge of the force-receiving plate 4. The second limiting part is slidably disposed in the limiting groove. The second limiting part enables the force-receiving plate 4 to slide back and forth along the limiting groove on the pull claw 8, so that during the tightening of the bolt 1, the force-receiving plate 4 can move towards the reducer under the push of the tightening bolt 1, while preventing the force-receiving plate 4 from rotating, thus improving the safety of the tightening process.

[0031] The limiting groove is a second strip-shaped through groove. The second limiting part includes a second sliding rod with a smaller diameter and a second limiting head with a larger diameter. The second sliding rod slides through the limiting groove. On a plane perpendicular to the axial direction of the linear drive component, the size of the second limiting head is larger than the size of the limiting groove. After installation, on a plane perpendicular to the axial direction of the linear drive component, the size of the second limiting head is larger, while on the axial direction of the linear drive component, the size of the second limiting head is smaller and smaller than the width of the limiting groove. Therefore, during installation, the smaller size of the second limiting head can be aligned with the width direction of the limiting groove. After the second limiting head passes through the limiting groove, it can be rotated 90 degrees so that the larger size of the second limiting head is aligned with the width direction of the limiting groove. At this time, the second limiting head and the limiting groove form an anti-detachment limiting structure, which facilitates the installation and disassembly of the pull claw 8 and the force-bearing plate 4, and reduces the possibility of the force-bearing plate 4 falling off the pull claw 8 during use.

[0032] Since the pull claw 8 can move on the pull seat 2 to accommodate reducers of different sizes, in order to avoid the second limit head excessively restricting the displacement range of the pull claw 8, the length of the second sliding rod should not be less than the movement range of the pull claw 8 on the pull seat 2, that is, the length of the second sliding rod should not be less than the length of the adjusting groove.

[0033] When measuring the axial clearance of the first bearing 01, such as Figure 3 and 4 As shown, after adjusting the pressure range of the support 5 of the travel reducer bearing clearance measuring fixture outward through the adjustment slot on the force plate 4, place it on the upper end face of the flange of the bearing seat 9. Adjust the range of the pull claw 8 by adjusting the bolt 3 on the pull claw 8, adjust the tightening bolt 1 in the center of the pull seat 2, fix the pull claw 8 to the lower end face of the lower flange of the connecting seat 7, and then tighten the bolt 1 with a torque wrench. The axial clearance of the first bearing 01 can be measured by using a dial indicator on the upper end face of the flange of the bearing seat 9. When the bearing clearance reaches the design setting range, tighten the locking nut 6.

[0034] When measuring the axial clearance of the second bearing 02, such as Figure 1 and 2 As shown, after adjusting the pressure range of the support 5 of the travel reducer bearing clearance measuring fixture through the adjusting groove on the force plate 4, place it on the upper end face of the connecting seat 7. Adjust the range of the pull claw 8 by adjusting the adjusting bolt 3 on the pull claw 8, adjust the tightening bolt 1 in the center of the pull seat 2, fix the pull claw 8 to the lower end face of the bearing seat 9 flange, and then tighten the bolt 1 with a torque wrench. The axial clearance of the second bearing 02 can be measured by using a dial indicator on the upper end face of the bearing seat 9 flange. When the bearing clearance reaches the design setting range, tighten the locking nut 6.

[0035] When measuring different specifications of travel reducers, the range of the pull claw 8 can be changed by adjusting the bolt 3 or the length of the support 5, as described above.

[0036] The adjustable bearing clearance measuring fixture for travel reducers in this invention is compatible with various sizes and specifications of travel reducer bearing clearance measurements, achieving versatility and standardized design while ensuring interchangeability. This facilitates unified management and significantly reduces manufacturing costs. Both the force-bearing plate 4 and the pull base 2 are equipped with adjustment slots, allowing for flexible expansion of the measurement range to adapt to measurement needs in different scenarios. The support component 5 adopts a quick-change structure design, making replacement convenient and efficient, and greatly improving assembly efficiency. Utilizing a dial indicator, precise measurement of bearing clearance can be achieved. This not only allows for direct judgment of whether the bearing is properly assembled but also enables scientific adjustment of the bearing installation position based on the measurement results. This makes the bearing installation position controllable, effectively reducing the generation and circulation of defective products during assembly, ensuring overall product quality, and maximizing the optimal performance of the bearing, extending its service life.

[0037] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A tooling for measuring the bearing clearance of a travel reducer with an adjustable function, characterized in that, include: The force-applying component includes a linear drive, a pull base (2), and a pull claw (8); the linear drive is disposed in the middle of the pull base (2); the pull base (2) is connected to one end of the pull claw (8), and the other end of the pull claw (8) is provided with a hook; The clamping assembly includes a force-receiving plate (4) and multiple support members (5); the middle part of the force-receiving plate (4) is connected to the telescopic end of the linear drive member; the multiple support members (5) are provided on the side of the force-receiving plate (4) away from the pull seat (2).

2. The travel reducer bearing clearance measuring fixture with adjustment function according to claim 1, characterized in that, The linear drive includes a tightening bolt (1), and the pull seat (2) has a threaded hole in the middle; the tightening bolt (1) passes through the threaded hole and is threadedly connected to the threaded hole.

3. The travel reducer bearing clearance measuring fixture with adjustment function according to claim 1, characterized in that, The pull seat (2) has at least two adjustment slots on a plane perpendicular to the axial direction of the linear drive member, and one end of the pull claw (8) is connected to the pull seat (2) through the adjustment slots.

4. The travel reducer bearing clearance measuring fixture with adjustment function according to claim 3, characterized in that, One end of the pull claw (8) is provided with a connecting part, and a connecting hole is provided on the connecting part along the axial direction of the linear drive component; the pull claw (8) and the pull seat (2) are connected by bolts to the adjusting groove and the connecting hole.

5. The travel reducer bearing clearance measuring fixture with adjustment function according to claim 4, characterized in that, The connecting part is located on the side of the pull seat (2) away from the clamping assembly.

6. The travel reducer bearing clearance measuring fixture with adjustment function according to claim 1, characterized in that, The force-receiving plate (4) has multiple adjustment slots on a plane perpendicular to the axial direction of the linear drive member. The support member (5) has a first limiting section at one end near the force-receiving plate (4), and the first limiting section is slidably disposed in the adjustment slot. The limiting section has a first force-bearing surface at one end away from the pull seat (2), and the first force-bearing surface abuts against the force-receiving plate (4).

7. The travel reducer bearing clearance measuring fixture with adjustment function according to claim 6, characterized in that, The adjustment channel is a first strip channel, and the axial direction of the first strip channel is perpendicular to the axial direction of the linear drive member; the first limiting section includes a first sliding rod with a smaller diameter and a first limiting head with a larger diameter, and the first sliding rod slides through the adjustment channel; along the circumferential direction of the force-receiving plate (4), the size of the first limiting head is larger than the size of the adjustment channel.

8. The travel reducer bearing clearance measuring fixture with adjustment function according to claim 1, characterized in that, The pull claw (8) is provided with a limiting groove along the axial direction of the linear drive member, and the force-receiving disk (4) is provided with a second limiting part on its circumferential edge, the second limiting part being slidably disposed in the limiting groove.

9. The travel reducer bearing clearance measuring fixture with adjustment function according to claim 8, characterized in that, The limiting groove is a second strip-shaped through groove. The second limiting part includes a second sliding rod with a smaller diameter and a second limiting head with a larger diameter. The second sliding rod slides through the limiting groove. On a plane perpendicular to the axial direction of the linear drive member, the size of the second limiting head is larger than the size of the limiting groove.

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