Gearbox gear shaft concentricity detection equipment

By designing a gearbox gear shaft concentricity testing device that combines slide rails, scales, and clamping plates, the problem of traditional equipment being unable to adapt to gear shafts of different sizes has been solved, enabling fast and accurate concentricity testing and reducing maintenance and equipment costs.

CN223769441UActive Publication Date: 2026-01-06CHONGQING NANYAN IND GRP LONGJIAN MECHANICAL MANUFACT
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Patent Information

Application Number
CN202520469696.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-01-06
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

Traditional gearbox gear shaft concentricity testing equipment cannot clearly determine the location of the observed numerical deviation and is difficult to adapt to gear shafts of different widths and bore diameters, resulting in high maintenance and equipment replacement costs.

Method used

A testing device was designed, comprising a base plate, a dial indicator, a second clamping plate, and a first clamping plate. Through the combination of slide rails, scales, clamping plates, and abutments, stable clamping and flexible testing of gear shafts are achieved, adapting to gear shafts of different sizes.

Benefits of technology

It enables clear observation of the numerical deviation location of the gear shaft, saving maintenance time and equipment costs, and improving the flexibility and accuracy of testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gearbox gear shaft concentricity detection device, and relates to the technical field of gearbox gear shafts. The device comprises a placing bottom plate, a dial indicator, a second clamping plate and a first clamping plate, three groups of sliding rails are arranged at the top of the placing bottom plate at equal intervals, a graduated scale is fixed on one side of the placing bottom plate, a long rubber pad is adhered to the top of the placing bottom plate, and a short rubber pad is adhered to the bottom of a connecting plate. The end, close to the vertical central axis of the placement bottom plate, of each of the second clamping plate and the first clamping plate is fixedly provided with an abutting block, and the bottom of each of the second clamping plate and the first clamping plate is provided with two sets of sliding blocks. And meanwhile, gear shafts with different lengths, widths and aperture sizes can be quickly debugged and detected, so that the equipment investment cost and the operation time cost are saved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to gearbox gear shaft technical field, concretely is gearbox gear shaft concentricity detection equipment. BACKGROUND

[0002] Gearbox gear shaft is the key part in the automobile gearbox, it bears the important task of transmission power and change speed ratio, through the gear meshing of different tooth number on the shaft, realizes the increase and decrease of engine output speed and the change of torque, satisfies the power demand under different driving conditions. The precision and strength of gear shaft directly influence the gear shifting smoothness of gearbox, transmission efficiency and service life, thereby need to detect the data of the concentricity of gear shaft, thereby need to use the concentricity detection equipment.

[0003] However, the traditional gearbox gear shaft concentricity detection equipment, when detecting the concentricity, when the detection value is biased, the specific length position difference of the object cannot be observed more clearly, and when detecting the gear shaft of different width size and aperture size, it cannot be better adapted, so different styles of detection equipment need to be replaced. UTILITY MODEL CONTENT

[0004] Therefore, the utility model discloses gearbox gear shaft concentricity detection equipment can point out the position of the numerical deviation of gear shaft more clearly, can effectively save the maintenance time cost, can carry out the quick debugging detection to the gear shaft of different length, width and aperture size, saves the equipment investment cost and operation time cost.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: gearbox gear shaft concentricity detection equipment, including placing bottom plate, dial indicator, second clamping plate and first clamping plate, the top of placing bottom plate is equipped with three groups of slide rails at equal intervals, and one side of placing bottom plate is fixed with a scale, the top of placing bottom plate is pasted with long rubber pad, and is located between two groups of slide rails close to scale, the side of second clamping plate away from the vertical central axis of placing bottom plate is fixed with adjusting seat, and the middle part of adjusting seat is threadedly connected with second adjusting rod, and the bottom of second adjusting rod is rotatably connected with connecting plate, the bottom of connecting plate is pasted with short rubber pad, the end of second clamping plate and first clamping plate close to the vertical central axis of placing bottom plate is fixed with abutment, and the side of abutment is chamfered structure, the bottom of second clamping plate and first clamping plate is equipped with two groups of sliding blocks, and is respectively with two groups of slide rails is engaged and slides.

[0006] By adopting the technical scheme, the three groups of sliding rails are used for sliding the sliding blocks and the sliding base respectively, the scale ruler can be used for better observation of data at different positions and marking, the long rubber pad is used for stabilizing the second clamping plate in cooperation with the short rubber pad, the resisting blocks on the second clamping plate and the first clamping plate are used for stably clamping the gear shaft, and the adjusting seat is in threaded connection with the second adjusting rod, so that the long rubber pad is in abutting or separation with the short rubber pad.

[0007] Further, the sliding base is arranged outside the group of sliding rails away from the scale ruler, and a dial indicator is rotatably arranged on the top of the sliding base.

[0008] By adopting the technical scheme, the sliding base is arranged outside the group of sliding rails away from the scale ruler, so that the sliding base can stably slide along the sliding rail, and the dial indicator is rotatably arranged on the top of the sliding base, so that the detection angle of the dial indicator can be flexibly adjusted.

[0009] Further, the fixed plate is fixed to one end of the two groups of sliding rails close to the scale ruler, and the first adjusting rod is in threaded connection with the middle of the fixed plate, one end of the first adjusting rod is rotatably connected with the first clamping plate, and the other end of the first adjusting rod is fixed with the first adjusting knob.

[0010] By adopting the technical scheme, the fixed plate is fixed to one end of the two groups of sliding rails close to the scale ruler, so as to provide a stable support point for the first adjusting rod, the first adjusting rod is in threaded connection with the middle of the fixed plate, so that the first adjusting rod can be accurately linearly moved in the fixed plate, and one end of the first adjusting rod is rotatably connected with the first clamping plate, so that the first clamping plate can stably slide along the sliding rail under the pushing of the first adjusting rod.

[0011] Further, the two groups of first limiting rods are fixed to the end face of the fixed plate close to the first clamping plate and slide with the first clamping plate, and the outer sides of the two groups of first limiting rods are sleeved with springs.

[0012] By adopting the technical scheme, the first limiting rod is used for providing additional limiting and stabilizing function for the first clamping plate, the spring provides continuous elastic support for the first clamping plate, and the elastic force of the spring can assist the first clamping plate to quickly and stably return to the original position.

[0013] Further, the indicating marks are fixed to one end of the two groups of sliding blocks close to the scale ruler and located above the scale ruler.

[0014] By adopting the technical scheme, the indicating marks are fixed to one end of the two groups of sliding blocks close to the scale ruler, so that the operator can have an intuitive reference point when observing the scale ruler.

[0015] Further, the top of the second adjusting rod is fixed with a second adjusting knob, the top of the connecting plate is fixed with two groups of second limiting rods, and the two groups of second limiting rods are symmetrically arranged based on the second adjusting rod, and the two groups of second limiting rods are slidably connected with the adjusting seat.

[0016] By adopting the above technical scheme, the top of the second adjusting rod is fixed with a second adjusting knob, which enables the operator to easily control the rotation of the second adjusting rod by manually rotating the second adjusting knob, the top of the connecting plate is fixed with two groups of second limiting rods, and the two groups of second limiting rods are symmetrically arranged based on the second adjusting rod, and the two groups of second limiting rods are slidably connected with the adjusting seat, thereby ensuring that the connecting plate can maintain a stable sliding track during upward and downward movement.

[0017] To sum up, the utility model mainly has the following beneficial effects:

[0018] 1. The utility model discloses a gear shaft concentricity detection device, which comprises a base, a gear shaft, a first clamping plate, a second clamping plate, a sliding block and a stopper.

[0019] 2. The utility model discloses a gear shaft concentricity detection device, which comprises a base, a gear shaft, a first clamping plate, a second clamping plate, a sliding block and a stopper. DRAWINGS

[0020] Figure 1 It is the whole structure schematic diagram of the utility model;

[0021] Figure 2 It is the whole structure schematic diagram of the utility model;

[0022] Figure 3 It is the whole structure schematic diagram of the utility model;

[0023] Figure 4 It is the whole structure schematic diagram of the utility model;

[0024] In the diagram: 1. Base plate; 2. Slide rail; 3. Long rubber pad; 4. Scale; 5. Sliding base; 6. Dial indicator; 7. Fixing plate; 8. First adjusting rod; 9. First adjusting knob; 10. First limiting rod; 11. Spring; 12. First clamping plate; 13. Sliding block; 14. Abutment block; 15. Second clamping plate; 16. Indicator; 17. Adjusting seat; 18. Second adjusting rod; 19. Second adjusting knob; 20. Connecting plate; 21. Second limiting rod; 22. Short rubber pad. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In this embodiment:

[0027] Equipment for testing the concentricity of gearbox gear shafts, such as Figures 1-4 As shown, the device includes a base plate 1, a dial indicator 6, a second clamping plate 15, and a first clamping plate 12. Three sets of slide rails 2 are evenly spaced on the top of the base plate 1, and a scale 4 is fixed to one side of the base plate 1. A long rubber pad 3 is attached to the top of the base plate 1 and positioned between the two sets of slide rails 2 near the scale 4. An adjusting seat 17 is fixed to the side of the second clamping plate 15 away from the vertical axis of the base plate 1, and a second adjusting rod 18 is threadedly connected to the middle of the adjusting seat 17. A connecting plate 20 is rotatably connected to the bottom of the second adjusting rod 18, and a short rubber pad 22 is attached to the bottom of the connecting plate 20. A stop block 14 is fixed to the end of both the second clamping plate 15 and the first clamping plate 12 near the vertical axis of the base plate 1, and one side of the stop block 14 has a chamfered structure. Two sets of sliding blocks 13 are provided at the bottom of both the second clamping plate 15 and the first clamping plate 12, and they engage and slide with the two sets of slide rails 2 respectively.

[0028] The side of the placement base plate 1 is fixed with a scale 4, which can intuitively show the position change of the gear shaft in the detection process, and provides an accurate reference for the concentricity detection. The side of the second clamping plate 15 away from the vertical central axis of the placement base plate 1 is fixed with an adjusting seat 17, and is rotatably connected with the connecting plate 20 through the second adjusting rod 18, so that the height and position of the connecting plate 20 can be flexibly adjusted to abut against the long rubber pad 3, thereby improving the stability of clamping. The end of the second clamping plate 15 and the first clamping plate 12 close to the vertical central axis of the placement base plate 1 is fixed with an abutting block 14, and the side of the abutting block 14 is chamfered, so that the abutting block 14 can be more easily inserted into the central hole of the gear shaft, and is suitable for gear shafts with different hole diameters, thereby improving the versatility of the equipment. The bottom of the second clamping plate 15 and the first clamping plate 12 is provided with two groups of sliding blocks 13, which are respectively engaged with two groups of sliding rails 2, so that the clamping plate can stably slide along the sliding rail 2, thereby ensuring the stability and accuracy of the gear shaft in the detection process.

[0029] Referring to Figure 1 and Figure 2 , the outer side of one group of sliding rails 2 away from the scale 4 is slidably provided with a sliding base 5, and the top of the sliding base 5 is rotatably installed with a dial gauge 6.

[0030] The position of the sliding base 5 can be flexibly adjusted according to actual needs, so that the detection head of the dial gauge 6 can be aligned with different parts of the gear shaft for detection, thereby improving the flexibility and accuracy of detection. During the detection process, the operator can adjust the angle of the detection head of the dial gauge 6 by rotating it, so as to adapt to gear shafts with different widths or shapes, and ensure that the detection head of the dial gauge 6 can be in close contact with the gear shaft, thereby accurately measuring the concentricity of the gear shaft.

[0031] Referring to Figure 1 , Figure 2 and Figure 4 , one end of the two groups of sliding rails 2 close to the scale 4 is fixed with a fixed plate 7, and the middle part of the fixed plate 7 is threadedly connected with a first adjusting rod 8, one end of which is rotatably connected with the first clamping plate 12, and the other end of the first adjusting rod 8 is fixed with a first adjusting knob 9.

[0032] When the operator rotates the first adjusting knob 9, the first adjusting rod 8 will rotate, and due to the threaded connection with the fixed plate 7, it will be converted into linear movement of the first adjusting rod 8. The operator can accurately control the movement distance of the first clamping plate 12 by rotating the first adjusting knob 9, thereby realizing accurate clamping and positioning of the gear shaft.

[0033] Referring to Figure 1 , Figure 2 and Figure 4The fixed plate 7 is fixed with two groups of first limiting rods 10 near one end face of the first clamping plate 12 and slides with the first clamping plate 12, and the outer side of the two groups of first limiting rods 10 is sleeved with springs 11;

[0034] The fixed plate 7 is fixed with two groups of first limiting rods 10 near one end face of the first clamping plate 12 and slides with the first clamping plate 12, and the outer side of the two groups of first limiting rods 10 is sleeved with springs 11;

[0035] Referring to Figure 1 , Figure 2 and Figure 3 , one end of the two groups of sliding blocks 13 close to the scale 4 is fixed with an indicating mark 16 and is located above the scale 4;

[0036] The indicating mark 16 has a corresponding positional relationship with the scale 4, which can help the operator quickly and accurately determine the specific position of the first clamping plate 12 or the second clamping plate 15 on the slide rail 2.

[0037] Referring to Figure 1 and Figure 3 , the top of the second adjusting rod 18 is fixed with a second adjusting knob 19, the top of the connecting plate 20 is fixed with two groups of second limiting rods 21, and the two groups of second limiting rods 21 are symmetrically arranged based on the second adjusting rod 18 and slide with the adjusting seat 17;

[0038] The second adjusting knob 19 provides good holding feeling and operation convenience, so that the adjusting process is more accurate and efficient, and the second limiting rod 21 not only plays a limiting role to prevent the connecting plate 20 from deviating or tilting during movement, but also improves the structural rigidity and stability of the entire device.

[0039] The implementation principle of the embodiment is that: first, the placing bottom plate 1 is stably placed on a designated position, then the center hole of the gear shaft to be detected is inserted and clamped with the abutting block 14 on the first clamping plate 12, the second clamping plate 15 is pushed to slide through the two groups of sliding blocks 13 at the bottom to the sliding rail 2 at the top of the placing bottom plate 1, so that the abutting block 14 on the second clamping plate 15 is inserted and clamped with the center hole at the other end of the gear shaft, then when the second clamping plate 15 is moved, the second adjusting knob 19 is turned to drive the second adjusting rod 18 to rotate, so that the second adjusting rod 18 drives the connecting plate 20 connected therewith to move downward through the threaded connection with the adjusting seat 17, the connecting plate 20 is limited in sliding through the second limiting rod 21 at the top of two sides and the adjusting seat 17, when the connecting plate 20 is lowered, the second limiting rod 21 at the bottom of the connecting plate 20 is tightly abutted with the long rubber pad 3, so that the second clamping plate 15 has stability, then the first adjusting knob 9 is turned to drive the first adjusting rod 8 to rotate, the first adjusting rod 8 is connected with the first clamping plate 12 through the threaded connection with the fixed plate 7, so that the first clamping plate 12 slides on the sliding rail 2 through the two groups of sliding blocks 13 at the bottom, so that the abutting block 14 on the first clamping plate 12 cooperates with the abutting block 14 on the second clamping plate 15 to stably install the gear shaft, finally the dial gauge 6 on the sliding base 5 is turned to make the detection head of the dial gauge 6 contact with the gear shaft to detect the value, when the detected value has a significant difference, the specific length position of the error of the gear shaft can be intuitively seen according to the scale 4 on one side of the placing bottom plate 1, so that the gear shaft can be quickly repaired.

[0040] When the first adjusting knob 9 is rotated in the opposite direction of the above operation, the first clamping plate 12 is better reset and slides through the sliding of the two groups of first limiting rods 10 and the spring tension provided by the spring 11, so as to release the fastening and clamping of the gear shaft.

[0041] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, and the person skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification without departing from the principles and purposes of the utility model, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A gearbox pinion shaft concentricity checking apparatus, characterised in that: It includes the placement base plate (1), dial gauge (6), second clamping plate (15) and first clamping plate (12); The top of the placement base plate (1) is provided with three groups of slide rails (2) at equal intervals, and one side of the placement base plate (1) is fixed with a scale (4), the top of the placement base plate (1) is pasted with a long rubber pad (3), and is located between two groups of slide rails (2) close to the scale (4), the side of the second clamping plate (15) away from the vertical central axis of the placement base plate (1) is fixed with an adjusting seat (17), the middle part of the adjusting seat (17) is threadedly connected with a second adjusting rod (18), and the bottom of the second adjusting rod (18) is rotatably connected with a connecting plate (20), the bottom of the connecting plate (20) is pasted with a short rubber pad (22), one end of the second clamping plate (15) and the first clamping plate (12) close to the vertical central axis of the placement base plate (1) is fixed with a stop block (14), and the side of the stop block (14) is chamfered, and the bottom of the second clamping plate (15) and the first clamping plate (12) is provided with two groups of slide blocks (13) and is respectively clamped and slid with two groups of slide rails (2).

2. The gearbox gear shaft concentricity detection apparatus according to claim 1, characterized in that: The outer side of one group of slide rails (2) away from the scale (4) is slidably provided with a sliding base (5), and the top of the sliding base (5) is rotatably installed with a dial gauge (6).

3. The gearbox gear shaft concentricity detection apparatus of claim 1, wherein: One end of two groups of slide rails (2) close to the scale (4) is fixed with a fixed plate (7), the middle part of the fixed plate (7) is threadedly connected with a first adjusting rod (8), one end of the first adjusting rod (8) is rotatably connected with the first clamping plate (12), and the other end of the first adjusting rod (8) is fixed with a first adjusting knob (9).

4. A gearbox gear shaft concentricity checking apparatus according to claim 3, characterised in that: The end face of the fixed plate (7) close to the first clamping plate (12) is fixed with two groups of first limiting rods (10) and slides with the first clamping plate (12), and the outer side of the two groups of first limiting rods (10) is sleeved with a spring (11).

5. The gearbox gear shaft concentricity detection apparatus as claimed in claim 1, wherein: One end of two groups of slide blocks (13) close to the scale (4) is fixed with an indicating mark (16) and is located above the scale (4).

6. The gearbox gear shaft concentricity detection apparatus of claim 1, wherein: The top of the second adjusting rod (18) is fixed with a second adjusting knob (19), the top of the connecting plate (20) is fixed with two groups of second limiting rods (21) and is symmetrically arranged based on the second adjusting rod (18), and the two groups of second limiting rods (21) slide with the adjusting seat (17).