Shaft outer joint pin hole straightness gauge
By designing a linear gauge of pin holes outside the shaft, the problem of verticality detection of pin hole positions is solved, and the precise and rapid detection of chain plates and pin hole positions is achieved, which improves the safety and life of the chain.
Patent Information
- Application Number
- CN202422213056.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-10
AI Technical Summary
During the chain production process, the perpendicularity of the pin hole position cannot be detected, resulting in uneven connections, affecting the service life and safety of the chain.
A linear gauge of the outer shaft joint pin hole is designed. Through the mating connection between the two measuring bodies, the straightness of the hole position of the chain plate and the pin shaft can be detected.
It realizes accurate and rapid detection of the distance and straightness of the pin hole and the chain plate, improves the flexibility and cost-effectiveness of the detection, and ensures the safety and life of the chain.
Smart Images
Figure CN223005463U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pin shaft hole position detection tools, in particular to a straightness gauge for the pin hole of the outer joint of a shaft. Background Art
[0002] When producing and processing a chain, the pin shaft is an important structural component. During production, mating holes are usually provided on the pin shaft for combined connection during installation. When machining the transverse holes of the pin shaft, the perpendicularity between the hole position and the central axis of the pin shaft cannot be detected. If the perpendicularity of the hole position fails to reach the perpendicular state, it will affect the mating force at the connection position, resulting in uneven force during use, affecting the service life of the chain, and there will be potential safety hazards during use. Currently, during production, the perpendicularity of the hole position cannot be detected, and a detection tool needs to be designed to solve the problem that the distance and straightness between the pin shaft hole and the chain plate cannot be detected by a general measuring tool. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a straightness gauge for the pin hole of the outer joint of a shaft, which has a simple overall structure. It is connected together by two measuring main bodies in a matching manner, and can detect the straightness of the hole position of the combined chain plate and pin shaft. It is more flexible and convenient to use, has a relatively low use cost, and is also more flexible during use, and can accurately and quickly detect the distance and straightness between the pin shaft hole and the chain plate.
[0004] The technical solution of the utility model is as follows:
[0005] A straightness gauge for the pin hole of the outer joint of a shaft, characterized in that: it includes a main body measurement and fitting seat, a combined connection and fitting threaded hole is provided on the side of the main body measurement and fitting seat, a detachable measurement and fitting column is connected at the position of the combined connection and fitting threaded hole, a pair of symmetrical hand-held avoidance and fitting grooves are respectively provided in the front and rear directions of the main body measurement and fitting seat, a chain plate placement and fitting groove that completely penetrates the overall width direction is provided at the lower end of the main body measurement and fitting seat, a chain plate main body is placed at the position of the chain plate placement and fitting groove, a pin shaft main body is provided on the chain plate main body, and the measurement and fitting column is matched with the pin hole of the outer joint of the pin shaft main body for measurement.
[0006] Further, the combined connection and fitting threaded hole completely penetrates the width direction of the main body measurement and fitting seat.
[0007] Further, a hand-held anti-slip fitting groove is provided inside the hand-held avoidance and fitting groove.
[0008] Further, a placement avoidance safety groove is provided at the upper end of the chain plate placement and fitting groove.
[0009] Furthermore, a safety protection rounded corner structure is provided at the outer edge position of the main body measurement fitting seat.
[0010] Advantages of the utility model:
[0011] The overall structure of the utility model is simple. The two measurement main bodies are cooperatively connected together, and can detect the straightness of the hole positions of the combined link plates and pins. It is more flexible and convenient to use, has a relatively low use cost, and also has strong flexibility during use, and can accurately and quickly detect the distance and straightness between the pin holes and the link plates. Description of the drawings
[0012] Figure 1 is a three-dimensional structure schematic diagram of the utility model;
[0013] Figure 2 is a front view schematic diagram of the utility model;
[0014] Figure 3 is a top view schematic diagram of the utility model;
[0015] Figure 4 is a three-dimensional structure schematic diagram of the utility model in a second direction;
[0016] In the figure: 1, main body measurement fitting seat; 2, measurement fitting column; 3, hand-held avoidance fitting groove; 4, link plate placement fitting groove; 5, placement avoidance safety groove; 6, link plate main body; 7, pin main body. Specific implementation manners
[0017] Such as Figures 1 to 4As shown in the figure, an off-axis joint pin hole linear measuring gauge includes a main body measuring and mating seat 1. The side of the main body measuring and mating seat 1 is provided with a combined connection and mating threaded hole. A detachable measuring and mating column 2 is connected to the position of the combined connection and mating threaded hole, which is more convenient for combined connection. The length of the combined position can be adjusted through the threaded mating position, so as to meet the detection and mating of off-axis joint pin holes of different specifications. A symmetrical hand-held avoidance and mating groove 3 is provided in the front and rear directions of the main body measuring and mating seat 1 respectively, which is convenient for hand-holding during use, making the cooperation more flexible during detection or measurement, and does not require placement and use on a workbench. A link plate placement and mating groove 4 that completely penetrates the overall width direction is provided at the lower end of the main body measuring and mating seat 1. A link plate main body 6 is placed at the position of the link plate placement and mating groove 4. A pin shaft main body 7 is provided on the link plate main body 6. The measuring and mating column 2 is mated with the off-axis joint pin hole on the pin shaft main body 7 for measurement. It adopts a brand-new structural design, with a simple overall structure. The two measuring main bodies are connected together by cooperation, and can detect the straightness of the hole position of the combined link plate and pin shaft. It is more flexible and convenient to use, with a relatively low use cost and strong flexibility during use, and can accurately and quickly detect the distance and straightness between the pin shaft hole and the link plate. During use, accurate data of the distance L of the pin shaft hole position can be measured according to needs, and the straightness can also be conveniently detected. The effects of both measurement and detection are achieved.
[0018] Preferably, the combined connection and mating threaded hole completely penetrates the width direction of the main body measuring and mating seat 1, which is more flexible and convenient to use, and any position in the left-right direction can be selected for use.
[0019] Preferably, a hand-held anti-slip mating groove is provided inside the hand-held avoidance and mating groove 3, which has better safety during hand-held operation.
[0020] Preferably, a placement avoidance and safety groove 5 is provided at the upper end of the link plate placement and mating groove 4, which makes the space at the placement and mating position larger and avoids the problem that some deformed link plates cannot be accurately placed in cooperation.
[0021] Preferably, a safety protection rounded corner structure is provided at the outer edge position of the main body measuring and mating seat 1, which has better safety during use and avoids the existence of sharp corner structures.
[0022] The above is the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements or replacements can still be made, and these improvements or replacements should also be regarded as the protection scope of the present invention.
Claims
1. A straightness gauge for an outer pin hole of an axle, characterized in that: The invention comprises a main body measurement matching seat (1), a side surface of the main body measurement matching seat (1) is provided with a combined connection matching threaded hole, a detachable measurement matching column (2) is connected to the position of the combined connection matching threaded hole, a symmetrical hand-held avoidance matching groove (3) is respectively provided in the front and rear directions of the main body measurement matching seat (1), a chain plate placement matching groove (4) which completely penetrates the entire width direction is provided at the lower end of the main body measurement matching seat (1), a chain plate main body (6) is placed at the position of the chain plate placement matching groove (4), a pin shaft main body (7) is provided on the chain plate main body (6), and the measurement matching column (2) cooperates with the shaft outer section pin hole on the pin shaft main body (7) to perform measurement.
2. The straightness gauge of the outer pin hole of the shaft according to claim 1, characterized in that: The combined connection matching threaded hole completely penetrates the main body measurement matching seat (1) in the width direction.
3. The straightness gauge of the outer pin hole of the shaft according to claim 1, characterized in that: A hand-held anti-slip fitting groove is provided inside the hand-held avoidance fitting groove (3).
4. The straightness gauge of the outer pin hole of the shaft according to claim 1, characterized in that: The upper end of the chain plate placement matching groove (4) is provided with a placement avoidance safety groove (5).
5. The straightness gauge of the outer pin hole of the shaft according to claim 1, characterized in that: The outer edge of the main body measurement fitting seat (1) is provided with a safety protection rounded corner structure.