Transmission shaft universal joint fork ear side symmetry degree testing fixture

By designing a universal joint fork lug inspection fixture for drive shafts that includes a worktable, left and right adjustment blocks, a servo motor, and an infrared distance sensor, the problems of inconvenient installation and insufficient accuracy of existing inspection fixtures are solved, enabling rapid and accurate inspection of the universal joint fork lugs of drive shafts and improving inspection efficiency and accuracy.

CN223741525UActive Publication Date: 2025-12-30TAIZHOU LINTAI NEW TYPE COMPOUND MATERIAL CO LTD
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Patent Information

Application Number
CN202520836460.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2025-12-30
Estimated Expiration
2035-04-29

AI Technical Summary

Technical Problem

The existing universal joint fork symmetry gauge is not easy to install and adjust quickly, resulting in low detection efficiency and insufficient accuracy, which affects the detection effect of universal joint fork symmetry.

Method used

A fixture was designed that includes components such as a worktable, left and right adjustment blocks, a servo motor, an adjustment screw, and an infrared distance sensor. The drive shaft is stably installed through multi-stage mounting rods and a servo motor, and is adjusted using an adjustment screw and an electric push rod. The infrared distance sensor detects the symmetry of the fork lug side.

Benefits of technology

It enables rapid and accurate inspection of the universal joint fork side of the drive shaft, improving inspection efficiency and accuracy, and ensuring the dynamic balance of the drive shaft.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of transmission shaft universal joint fork ear side detection equipment, and discloses a transmission shaft universal joint fork ear side symmetry degree detection tool, which comprises a workbench, a left adjusting block and a right adjusting block, the workbench comprises an empty groove and a support strip, the empty groove is arranged at the middle position in the workbench, and the support strip is arranged on the left adjusting block and the right adjusting block. The supporting strip is arranged on one side of the top of the workbench, and the left-right adjusting block comprises a fixing frame, a multi-stage mounting rod, a servo motor and an adjusting screw rod. The left-right adjusting block and the lifting plate can be adjusted left and right through the servo motor, the adjusting screw rod and the positioning rod, the lifting plate can be adjusted in a lifting mode through the electric push rod and the second positioning rod, and the distance between the installation block and the transmission shaft universal joint fork lug side can be detected through the infrared distance sensor. Whether the transmission shaft universal joint fork ear side is symmetrical or not is judged according to whether the measured values are the same or not, so that the symmetry degree of the transmission shaft universal joint fork ear side can be detected accurately and quickly.
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Description

TECHNICAL FIELD

[0001] The utility model relates to transmission shaft universal joint fork ear side detection equipment technical field, concretely is a kind of transmission shaft universal joint fork ear side symmetry degree testing fixture. BACKGROUND

[0002] Transmission shaft is a high-speed rotating body with less support, widely used in power transmission field, so its dynamic balance is very important, an important factor affecting its dynamic balance is the symmetry degree of universal joint fork ear side, if universal joint fork ear side is asymmetric, vehicle will produce periodic noise during driving, the faster the speed, the louder the noise, even with the vibration of car body, the hand holding steering wheel will also feel numb.

[0003] Application No. CN202411354342.3 discloses a kind of transmission shaft universal joint fork ear side symmetry degree testing fixture, including fork ear symmetry detection mechanism including workbench, the workbench outer wall is close to the fixed connection of one side position with square frame......By this mechanism, fork ear can be quickly fixed, and position is accurately adjusted, so that fork ear is accurately inserted with U-shaped shell inside, and personnel operation is not needed, effectively improve detection efficiency and accuracy;The symmetry degree testing fixture is not convenient for quickly installing transmission shaft universal joint, so as to affect the detection efficiency of the symmetry degree of transmission shaft universal joint fork ear side, and each component needs to be adjusted, so that the detection accuracy of the symmetry degree of transmission shaft universal joint fork ear side is low, it is inconvenient to detect the symmetry degree of transmission shaft universal joint fork ear side. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of transmission shaft universal joint fork ear side symmetry degree testing fixture, to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of transmission shaft universal joint fork ear side symmetry degree testing fixture, including workbench and left-right adjusting block, the workbench includes air slot and support strip, the air slot is located at the middle position in the inside of workbench, the support strip is located at one side of the top of workbench, the left-right adjusting block includes fixed frame, multistage mounting rod, servo motor and adjusting screw rod, the fixed frame is located at the other side of the top of workbench, the multistage mounting rod is located at the top of one side of fixed frame, the servo motor is located at the bottom of the other side of fixed frame, the adjusting screw rod is located at the output end of servo motor, and adjusting screw rod is penetrated to the inside of left-right adjusting block.

[0006] Preferably, the bottom of the workbench is provided with a support frame, and one end between the fixed frame and the support strip is provided with a positioning rod one penetrating into the inside of the left-right adjusting block.

[0007] Preferably, the top of the left and right adjusting blocks is provided with a lifting plate, the top of the lifting plate is symmetrically provided with mounting blocks at both ends, one end of the two groups of mounting blocks is provided with an infrared distance sensor, the middle position of the bottom of the left and right adjusting blocks is provided with an electric push rod, and both ends of the bottom of the lifting plate are provided with positioning rods two penetrating to the bottom of the left and right adjusting blocks.

[0008] Preferably, the support strip and the fixed frame are both welded to the top of the workbench, and the multi-stage mounting rod is welded to one side of the fixed frame.

[0009] Preferably, the servo motor is detachably connected with the fixed frame through a fixing bolt, one end of the side of the support strip is provided with a bearing, and the adjusting screw rod penetrates into the bearing.

[0010] Preferably, the front end of the left and right adjusting blocks is provided with a threaded hole matched with the adjusting screw rod, and the left and right adjusting blocks are threadedly connected with the adjusting screw rod through the threaded hole.

[0011] Preferably, the support frame is detachably connected with the workbench through a fixing bolt, and the support frame is provided with anti-skid pads at four corners of the bottom.

[0012] Preferably, the two ends of the positioning rod one are welded to the fixed frame and the support strip respectively, the rear end of the left and right adjusting blocks is provided with a positioning hole one, and the positioning rod one penetrates into the inside of the positioning hole one.

[0013] Preferably, the two groups of mounting blocks are welded to the top of the lifting plate, and the infrared distance sensor is detachably connected with the mounting block through a fixing bolt.

[0014] Preferably, the middle position of the bottom of the lifting plate is provided with a connecting block, and the telescopic end of the electric push rod is connected with the connecting block, both ends of the left and right adjusting blocks are provided with positioning holes two, and the positioning rod two penetrates into the inside of the positioning hole two.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The utility model discloses a multi-stage mounting rod can install different models of transmission shaft universal joint, servo motor, adjusting screw rod and positioning rod can adjust the left and right adjusting block and lifting plate, electric push rod and positioning rod two can adjust the lifting plate, and infrared distance sensor can detect the distance between mounting block and transmission shaft universal joint fork ear side, and whether the symmetry of transmission shaft universal joint fork ear side is judged according to whether the measured value is same, and the symmetry of transmission shaft universal joint fork ear side is detected accurately and quickly. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0018] Figure 1 The structural schematic diagram of the present application.

[0019] Figure 2 The partial structural schematic diagram of the present application.

[0020] Figure 3 The sectional view of the present application.

[0021] In the figure: 1, workbench; 101, empty groove; 102, support frame; 103, support strip; 2, left and right adjusting block; 201, fixed frame; 202, multi-stage mounting rod; 203, servo motor; 204, adjusting screw; 205, positioning rod one; 3, lifting plate; 301, mounting block; 302, infrared distance sensor; 303, electric push rod; 304, positioning rod two. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application will be further described in combination with specific embodiments.

[0023] In the description of the present application, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "another end" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it is necessary to explain that, unless there are explicit provisions and limitations, the terms "mounting", "setting", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below with the drawings in the embodiments of the utility model, apparently, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0026] Please refer to Figures 1-3 The utility model provides a kind of transmission shaft universal joint fork ear side symmetry degree gauge embodiment: a kind of transmission shaft universal joint fork ear side symmetry degree gauge, including workbench 1 and left and right adjusting block 2, workbench 1 includes empty slot 101 and support strip 103, empty slot 101 is located at the middle position inside workbench 1, support strip 103 is located at the top of one side of workbench 1, by empty slot 101, left and right adjusting block 2 is conveniently adjusted, left and right adjusting block 2 includes fixed frame 201, multistage mounting rod 202, servo motor 203 and adjusting screw 204, fixed frame 201 is located at the top of the other side of workbench 1, multistage mounting rod 202 is located at the top of one side of fixed frame 201, the outside of multistage mounting rod 202 is equipped with multiple fixed grooves, and it is convenient to install detection for different models of transmission shaft universal joint, servo motor 203 is located at the bottom of the other side of fixed frame 201, adjusting screw 204 is located at the output end of servo motor 203, and adjusting screw 204 is penetrated to the inside of left and right adjusting block 2, by servo motor 203, adjusting screw 204 can be driven to rotate, and power is provided for the left and right adjustment of left and right adjusting block 2, the bottom of workbench 1 is equipped with support frame 102, and the effect of support is achieved, so that the use of symmetry degree gauge is more stable, one end between fixed frame 201 and support strip 103 is equipped with positioning rod one 205 that is penetrated to the inside of left and right adjusting block 2, and the adjustment of left and right adjusting block 2 is more stable by positioning rod one 205.

[0027] Please refer to Figure 1 And Figure 2The upper portion of the top of the left and right adjusting blocks 2 is provided with a lifting plate 3, the two ends of the top of the lifting plate 3 are symmetrically provided with mounting blocks 301, one end of the two groups of mounting blocks 301 is provided with an infrared distance sensor 302, which is convenient for installing and using the infrared distance sensor 302, the middle position of the bottom of the left and right adjusting blocks 2 is provided with an electric push rod 303, and the two ends of the bottom of the lifting plate 3 are provided with positioning rods two 304 penetrating to the bottom of the left and right adjusting blocks 2. The electric push rod 303 and the positioning rod two 304 can stably adjust the lifting of the lifting plate 3, and the transmission shaft universal joint can be quickly detected.

[0028] Please refer to Figure 1 and Figure 3 The support strip 103 and the fixed frame 201 are both welded and connected with the top of the workbench 1, so that the support strip 103 and the fixed frame 201 are fixed on the top of the workbench 1. The multi-stage mounting rod 202 is welded and connected with one side of the fixed frame 201. The servo motor 203 is detachably connected with the fixed frame 201 through fixing bolts, so that the servo motor 203 is installed on one side of the fixed frame 201. One end of one side of the support strip 103 is provided with a bearing, and the adjusting screw 204 penetrates into the bearing, so that the rotation of the adjusting screw 204 is more stable. The front end in the left and right adjusting blocks 2 is provided with a threaded hole matched with the adjusting screw 204. The left and right adjusting blocks 2 are screwed with the adjusting screw 204 through the threaded hole, so as to limit the adjusting effect and provide power for the adjustment of the left and right adjusting blocks 2. The support frame 102 is detachably connected with the workbench 1 through fixing bolts, so that the support frame 102 and the workbench 1 are installed. The support frame 102 is provided with anti-skid pads at the four corners of the bottom. The two ends of the positioning rod one 205 are welded and connected with the fixed frame 201 and the support strip 103 respectively. The rear end in the left and right adjusting blocks 2 is provided with a positioning hole one, and the positioning rod one 205 penetrates into the inside of the positioning hole one, so as to have the positioning effect and make the adjustment of the left and right adjusting blocks 2 more stable.

[0029] Please refer to Figure 1 and Figure 2 The two groups of mounting blocks 301 are welded and connected with the top of the lifting plate 3. The infrared distance sensor 302 is detachably connected with the mounting block 301 through fixing bolts, so that the infrared distance sensor 302 and the mounting block 301 are installed. The distance between the transmission shaft universal joint fork ear side and the mounting block 301 can be detected. Whether the transmission shaft universal joint fork ear side is symmetrical is judged according to whether the values are the same. The middle position of the bottom of the lifting plate 3 is provided with a connecting block, and the telescopic end of the electric push rod 303 is connected with the connecting block, so as to adjust the lifting of the lifting plate 3. The two ends in the left and right adjusting blocks 2 are provided with positioning holes two, and the positioning rod two 304 penetrates into the inside of the positioning hole two. The lifting adjustment of the lifting plate 3 by the positioning rod two 304 is more stable.

[0030] Working principle: the utility model discloses when using, switch on the power, install the transmission shaft universal joint on the outside of multistage mounting pole 202, the outside of multistage mounting pole 202 is equipped with different installation groove, can install detection to different model transmission shaft universal joint, can drive adjusting screw 204 to rotate through servo motor 203, and adjusting screw 204 and the thread hole of the inside front end of left and right adjusting block 2 are mutually matched, can drive lift plate 3 to carry out left and right adjustment, the adjustment of left and right adjusting block 2 is more stable through positioning rod one 205, through electric push rod 303 and positioning rod two 303, lift plate 3 can be carried out stable lifting adjustment, to make lift plate 3 and the bottom of transmission shaft universal joint contact, through infrared distance sensor 302, the interval between transmission shaft universal joint fork ear side and mounting block 301 can be detected, according to data, whether transmission shaft universal joint fork ear side is symmetrical can be accurately detected, if the same value, transmission shaft universal joint fork ear side is symmetrical, if the different value, it indicates that transmission shaft universal joint fork ear side is asymmetrical.

[0031] The above-mentioned is only the embodiment of the utility model, and the well-known specific structure and characteristics in the scheme are not described too much. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A symmetry gauge for the fork lug side of a universal joint drive shaft, characterized in that: The utility model provides a kind of workbench, including air slot (101) and support strip (103), air slot (101) is opened in the middle position inside workbench (1), support strip (103) is located at one side of the top of workbench (1); Left and right adjusting block (2), left and right adjusting block (2) includes fixed frame (201), multistage mounting rod (202), servo motor (203) and adjusting screw rod (204), fixed frame (201) is located at the other side of the top of workbench (1), multistage mounting rod (202) is located at the top of one side of fixed frame (201), servo motor (203) is located at the bottom of the other side of fixed frame (201), adjusting screw rod (204) is located at the output end of servo motor (203), and adjusting screw rod (204) penetrates to the inside of left and right adjusting block (2). The bottom of the workbench (1) is provided with a support frame (102), and one end between the fixed frame (201) and the support strip (103) is provided with a positioning rod one (205) penetrating to the inside of the left and right adjusting block (2).

2. The ear side symmetry degree gauge for a universal joint yoke of a propeller shaft according to claim 1, characterized in that: The top of the left and right adjusting block (2) is provided with a lifting plate (3), and the top of the lifting plate (3) is provided with two mounting blocks (301) symmetrically at both ends, one end of the two mounting blocks (301) is provided with an infrared distance sensor (302), and the middle position of the bottom of the left and right adjusting block (2) is provided with an electric push rod (303), and both ends of the bottom of the lifting plate (3) are provided with a positioning rod two (304) penetrating to the bottom of the left and right adjusting block (2).

3. The ear side symmetry degree gauge for a universal joint yoke of a propeller shaft according to claim 1, characterized in that: The support strip (103) and the fixed frame (201) are welded to the top of the workbench (1), and the multistage mounting rod (202) is welded to one side of the fixed frame (201).

4. The ear side symmetry degree gauge for a universal joint yoke of a propeller shaft according to claim 1, characterized in that: The servo motor (203) is detachably connected to the fixed frame (201) by a fixing bolt, one end of the support strip (103) is provided with a bearing, and the adjusting screw rod (204) penetrates into the bearing.

5. A universal-joint yoke ear side symmetry gauge for a propeller shaft as set forth in claim 1, characterized in that: The front end of the inside of the left and right adjusting block (2) is provided with a threaded hole matched with the adjusting screw rod (204), and the left and right adjusting block (2) is threadedly connected with the adjusting screw rod (204) through the threaded hole.

6. A universal-joint yoke ear side symmetry gauge for a propeller shaft universal joint yoke as set forth in claim 1, characterized in that: The support frame (102) is detachably connected to the workbench (1) by a fixing bolt, and the support frame (102) is provided with a non-slip pad at the four corners of the bottom.

7. A universal-joint yoke side symmetry gauge for a propeller shaft as set forth in claim 2, wherein: Both ends of the positioning rod one (205) are welded to the fixed frame (201) and the support strip (103), respectively, and the rear end of the inside of the left and right adjusting block (2) is provided with a positioning hole one, and the positioning rod one (205) penetrates into the inside of the positioning hole one.

8. A universal-joint yoke side symmetry gauge for a propeller shaft according to claim 2, characterized in that: The top of the lifting plate (3) is welded to the two mounting blocks (301), and the infrared distance sensor (302) is detachably connected to the mounting block (301) by a fixing bolt.

9. A universal-joint yoke side symmetry gauge for a propeller shaft as set forth in claim 3, characterized in that: The middle position of the bottom of the lifting plate (3) is provided with a connecting block, and the telescopic end of the electric push rod (303) is connected to the connecting block, both ends of the inside of the left and right adjusting block (2) are provided with a positioning hole two, and the positioning rod two (304) penetrates into the inside of the positioning hole two.

10. A universal-joint yoke side symmetry gauge for a propeller shaft as set forth in claim 3, characterized in that: ​

Citation Information

Patent Citations

  • Transmission shaft universal joint fork ear side symmetry degree testing fixture

    CN118857041A