Spline shaft fork ear hole symmetry degree testing fixture
By designing a key shaft fork ear puzzle testing tool that includes the installation of the bottom plate, the limit component and the control box, the problem of the existing detection device limit effect and poor detection accuracy of the existing detection device are solved, and the convenient detection and regulating operation and regulation operations are realized. Good applicability.
Patent Information
- Application Number
- CN202421303962.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing spline shaft fork ear hole symmetry detection device has poor limiting effect and detection accuracy, and is not good inapplicable, so it cannot adapt to different models of spline shaft forks.
Design a span shaft fork ear puerisidity test of the flower bonding of the bottom plate, the limited component and the control box, the limited connection of the bond shaft fork through the coordination of the electromagnet and the limit slot, and use the electric push rod and the connection to the connection. The height of the block adjustment detection rod can be detected to detect the symmetry of the ear.
The convenience of detection and adjustment operations is achieved, and the applicability is good. The corresponding limit components can be selected according to different types of flower bearing fork, which can improve the detection accuracy and limit effects.
Smart Images
Figure CN222418901U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of transmission shaft detection, and in particular relates to a symmetry detection tool for a spline shaft fork ear hole. Background Art
[0002] The spline shaft fork is an important component on the non-constant speed transmission shaft. It is made of a spline shaft and a shaft fork fixed and welded concentrically, wherein ear holes for connection are opened at the centers of the two end faces of the shaft fork. After the spline shaft fork is processed, in order to ensure its quality, the symmetry of the ear holes on both sides must be detected to avoid the problem that the spline shaft fork cannot be installed in actual use due to asymmetric or deviation in the positions of the ear holes on both sides. When the existing detection device is used, its limiting effect on the spline shaft fork and the detection accuracy of the ear holes are relatively poor. At the same time, one detection device can only perform limit detection on one model of spline shaft fork, and the overall applicability is not good. In order to solve the above problems, it is necessary to develop a spline shaft fork ear hole symmetry inspection tool with convenient detection and adjustment operation and good applicability. Utility Model Content
[0003] The utility model aims to overcome the shortcomings of the prior art and provide a spline shaft fork ear hole symmetry inspection tool which has convenient inspection and adjustment operations and good applicability.
[0004] The purpose of the utility model is achieved in this way: a spline shaft fork ear hole symmetry inspection tool, including a mounting base plate, a limit assembly and a control box, the mounting base plate as a whole is horizontally arranged, a placement groove is arranged at the center of its upper surface, and detection assemblies are symmetrically arranged on both sides of the upper surface, and an electromagnet is fixedly arranged on the bottom surface of the placement groove, and the detection assembly includes a vertical plate and a detection rod, the vertical plate is vertically fixedly arranged on the side end of the upper surface of the mounting base plate, a through groove is vertically arranged in the middle, a connecting block is vertically slidably arranged inside the through groove, an electric push rod is vertically fixedly arranged between the lower part of the connecting block and the upper surface of the mounting base plate, and a through hole matching the detection rod structure is horizontally arranged at the center, The detection rod is laterally slidable and penetrates the interior of the through hole; the limit assembly is located directly above the placement slot, and includes a placement plate and a limit block. The placement plate is made of iron, and its structure is the same as that of the placement slot, and the lower end of the placement plate is located in the placement slot, and the upper end protrudes from the placement slot and is located above the mounting base plate. The limit block is located directly above the placement plate, and its lower end is connected to the placement plate through a turntable bearing for concentric rotation, and a limit slot is vertically arranged at the center of the upper end, and the inner wall of the limit slot is provided with an internal spline that matches the outer spline structure in the spline shaft fork; the control box is located at the side end of the limit assembly and is fixedly connected to the mounting base plate, and the electromagnet and the electric push rod are electrically connected to the control box through wires.
[0005] A triangular calibration block is fixedly arranged at the middle of the front end of the outer side surface of the connection block and at the middle of the rear end of the outer side surface.
[0006] The front end and the rear end of the outer opening of the through slot are both provided with scales.
[0007] The inner end of the detection rod is conical, and an auxiliary pull rod is fixedly arranged on the outer end.
[0008] Auxiliary rotating blocks are fixedly arranged on the upper ends of both side surfaces of the limiting block.
[0009] The beneficial effects of the utility model are as follows: the utility model provides a placement slot, an electromagnet and a placement plate, and utilizes the magnetic attraction of the electromagnet on the iron placement plate after being energized to realize the limit connection between the placement plate and the placement slot. With this structure, through a detachable connection method, it is convenient to select a limit component that matches its structure according to the model of the spline shaft fork to be detected during use, thereby increasing its applicability; by providing a limit slot, the cooperation of the internal spline on the inner wall of the limit slot and the external spline on the surface of the spline shaft fork can be used to realize the vertical limit placement of the spline shaft fork as a whole; by providing a turntable bearing, the turntable bearing can be used to realize the rotational connection between the limit block and the placement plate, so that when in use, the limit block can be rotated by an external force, and then the rotation of the limit block can drive the spline shaft fork vertically placed inside the limit slot to be rotated and adjusted, so that the end face of the shaft fork end is in a flat shape with the vertical plate;
[0010] By setting a vertical plate, a through slot, a connecting block, an electric push rod, a through hole and a detection rod, when in use, the vertical sliding connection between the connecting block and the through slot can be utilized to control the unfolded length of the electric push rod, thereby adjusting the height of the connecting block, and then by moving the connecting block in the vertical direction, the detection rod sliding through the through hole at the center thereof is driven to adjust the height, so that the height of the detection rod is consistent with the ear hole on the end face of the spline shaft fork. At this point, the detection rod is horizontally moved laterally by external force to achieve the matching connection between it and the ear hole. Finally, by observing the height of the detection rods in the two detection components, the symmetry of the ear hole of the spline shaft fork can be judged (when the heights of the detection rods in the two detection components are consistent, it means that the symmetry of the spline shaft fork is qualified, and when there is a height difference between the detection rods in the two detection components, it means that the symmetry of the spline shaft fork is unqualified); in general, the utility model has the advantages of convenient detection and adjustment operation and good applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a front view of the utility model when in use.
[0012] Figure 2 It is a sectional view of the front view of the connection between the installation base plate and the limiting component in the utility model.
[0013] Figure 3It is a side view of the connection between the installation base plate and the detection component in the utility model.
[0014] In the figure: 1. Installation base plate; 11. Placement slot; 12. Electromagnet; 2. Limit assembly; 21. Placement plate; 22. Limit block; 23. Limit slot; 24. Auxiliary rotating block; 3. Control box; 4. Detection assembly; 41. Vertical plate; 42. Detection rod; 43. Through slot; 44. Connecting block; 45. Electric push rod; 46. Through hole; 47. Calibration block; 48. Auxiliary pull rod. DETAILED DESCRIPTION
[0015] The utility model is further described below in conjunction with the accompanying drawings.
[0016] Example: Figure 1 , Figure 2 , Figure 3 As shown, a spline shaft fork ear hole symmetry inspection tool comprises a mounting base plate 1, a limit assembly 2 and a control box 3, wherein the mounting base plate 1 is arranged horizontally as a whole, a placement groove 11 is arranged at the center of its upper surface, and detection assemblies 4 are symmetrically arranged on both sides of the upper surface, and an electromagnet 12 is fixedly arranged on the bottom surface of the placement groove 11, and the detection assembly 4 comprises a vertical plate 41 and a detection rod 42, wherein the vertical plate 41 is vertically fixedly arranged on the side end of the upper surface of the mounting base plate 1, and a through groove 43 is vertically arranged in the middle thereof, and a connecting block 44 is vertically slidably arranged inside the through groove 43, and an electric push rod 45 is vertically fixedly arranged between the lower part of the connecting block 44 and the upper surface of the mounting base plate 1, and a through hole 46 matching the structure of the detection rod 42 is horizontally arranged at the center, and the detection rod 42 is horizontally arranged It is slidably penetrated inside the through hole 46; the limit assembly 2 is located directly above the placement groove 11, and includes a placement plate 21 and a limit block 22. The placement plate 21 is made of iron, and its structure is the same as that of the placement groove 11. The lower end of the placement plate 21 is located in the placement groove 11, and the upper end protrudes from the placement groove 11 and is located above the mounting base plate 1. The limit block 22 is located directly above the placement plate 21, and its lower end is connected to the placement plate 21 through a turntable bearing for concentric rotation. A limit groove 23 is vertically arranged at the center of the upper end, and the inner wall of the limit groove 23 is provided with an internal spline that matches the outer spline structure in the spline shaft fork; the control box 3 is located at the side end of the limit assembly 2, and is fixedly connected to the mounting base plate 1, and the electromagnet 12 and the electric push rod 45 are both electrically connected to the control box 3 through wires.
[0017] A triangular calibration block 47 is fixedly provided in the middle of the front end of the outer side surface of the connecting block 44 and the middle of the rear end of the outer side surface. The front end and the rear end of the outer opening of the through slot 43 are provided with scales. The calibration block 47 cooperates with the scale to facilitate the quick and accurate reading of the height of the center of the detection rod 42. The inner end of the detection rod 42 is conical, and an auxiliary pull rod 48 is fixedly provided on the outer end. The conical structure can increase the smoothness of the fitting between the detection rod 42 and the ear hole, and the auxiliary pull rod 48 can assist the lateral movement of the detection rod 42. The upper ends of the two sides of the limit block 22 are fixedly provided with auxiliary rotating blocks 24. The auxiliary rotating blocks 24 can increase the convenience of the rotation operation of the limit block 22.
[0018] When the utility model is used, first, according to the model of the spline shaft fork to be detected, a limit component 2 that matches its structure is selected (that is, the inner spline of the inner wall of the limit groove 23 in the limit component 2 matches the outer spline structure on the outer surface of the spline shaft fork to be detected), and then, by using the cooperation between the placement plate 21 and the placement groove 11, the limit component 2 is placed just above the placement groove 11, and the power circuit of the electromagnet 12 is turned on through the control box 3, and the magnetic attraction of the electromagnet 12 on the iron placement plate 21 after being energized can be used to achieve the limit connection between the placement plate 21 and the placement groove 11, thereby completing the limit connection between the installation base plate 1 and the limit component 2, using This structure, through the detachable connection mode, is convenient for selecting the limit assembly 2 that matches the structure of the spline shaft fork to be tested according to the model of the spline shaft fork to be tested during use, thereby increasing its applicability; then, by utilizing the cooperation between the inner spline of the inner wall of the limit groove 23 and the outer spline on the surface of the spline shaft fork, the spline shaft fork to be tested is vertically placed in the limit groove 23, and then, by utilizing the rotational connection between the limit block 22 and the placement plate 21 through the turntable bearing, the limit block 22 can be rotated by an external force, thereby driving the spline shaft fork vertically placed inside the limit groove 23 to rotate and adjust through the rotation of the limit block 22, so that the end face of the shaft fork end is in a flat shape with the vertical plate 41; finally, by The control box 3 adjusts the unfolding length of the electric push rods 45 in the two detection components 4 respectively. At this time, by utilizing the vertical sliding connection between the connecting block 44 and the through slot 43, the height of the connecting block 44 can be adjusted by the thrust of the electric push rod 45 on the connecting block 44 when it is unfolded, and then the height of the detection rod 42 slidingly inserted in the through hole 46 at the center thereof is driven to be adjusted through the height adjustment of the connecting block 44, so that the height of the detection rod 42 is consistent with the ear hole of the spline shaft fork on the same side thereof; after completing the above operation, the detection rod 42 is horizontally moved by external force, so as to achieve the matching sleeve connection between it and the ear hole on the same side. In this process, if the detection rod 42 If the measuring rod 42 cannot be fitted with the ear hole, it means that there is a position deviation in the ear hole and it is not in the middle position of the end face of the spline shaft fork, and the workpiece is unqualified; if the measuring rod 42 can be fitted with the ear hole, the symmetry of the spline shaft fork ear hole can be detected and judged by observing the height of the measuring rod 42 in the two detecting components 4 (when the heights of the measuring rods 42 in the two detecting components 4 are the same, it means that the symmetry of the spline shaft fork ear hole is qualified; when there is a height difference between the measuring rods 42 in the two detecting components 4, it means that the symmetry of the spline shaft fork ear hole is unqualified); in general, the utility model has the advantages of convenient detection and adjustment operation and good applicability.
[0019] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of the claims of the utility model.
Claims
1. A spline shaft fork ear hole symmetry inspection tool, comprising a mounting base plate (1), a limit assembly (2) and a control box (3), characterized in that: The mounting base plate (1) is arranged horizontally as a whole, and a placement groove (11) is arranged at the center of its upper surface. The detection components (4) are symmetrically arranged on both sides of the upper surface. The bottom surface of the placement groove (11) is fixedly provided with an electromagnet (12). The detection component (4) comprises a vertical plate (41) and a detection rod (42). The vertical plate (41) is vertically fixedly arranged at the side end of the upper surface of the mounting base plate (1). A through groove (43) is vertically arranged in the middle. A connecting block (44) is vertically slidably arranged inside the through groove (43). An electric push rod (45) is vertically fixedly arranged between the lower part of the connecting block (44) and the upper surface of the mounting base plate (1). A through hole (46) matching the structure of the detection rod (42) is horizontally arranged at the center. The detection rod (42) is horizontally slidably penetrated inside the through hole (46); the limit The component (2) is located directly above the placement groove (11), and comprises a placement plate (21) and a limit block (22). The placement plate (21) is made of iron and has the same structure as the placement groove (11). The lower end of the placement plate (21) is located in the placement groove (11), and the upper end protrudes from the placement groove (11) and is located above the mounting base plate (1). The limit block (22) is located directly above the placement plate (21), and its lower end is connected to the placement plate (21) for coaxial rotation via a turntable bearing. A limit groove (23) is vertically arranged at the center of the upper end, and an inner wall of the limit groove (23) is provided with an inner spline that matches the outer spline structure in the spline shaft fork. The control box (3) is located at the side end of the limit component (2) and is fixedly connected to the mounting base plate (1). The electromagnet (12) and the electric push rod (45) are both electrically connected to the control box (3) via wires.
2. A spline shaft fork ear hole symmetry inspection tool as claimed in claim 1, characterized in that: A triangular calibration block (47) is fixedly disposed at the middle of the front end of the outer side surface of the connection block (44) and at the middle of the rear end of the outer side surface.
3. A spline shaft fork ear hole symmetry inspection tool as claimed in claim 1, characterized in that: The front end and the rear end of the outer opening of the through slot (43) are both provided with scales.
4. A spline shaft fork ear hole symmetry inspection tool as claimed in claim 1, characterized in that: The inner end of the detection rod (42) is conical, and an auxiliary pull rod (48) is fixedly provided on the outer end.
5. A spline shaft fork ear hole symmetry inspection tool as claimed in claim 1, characterized in that: Auxiliary rotating blocks (24) are fixedly arranged at the upper ends of both side surfaces of the limiting block (22).