Cross shaft gap detection mechanism

Abstract

The utility model discloses a universal joint pin gap detection mechanism which comprises a bottom plate, first stand columns are fixedly arranged on the two sides of the upper end of the bottom plate, a workbench is fixedly arranged at the upper ends of the first stand columns, second stand columns are fixedly arranged on the two sides of the upper end of the workbench, and a top plate is fixedly arranged at the upper ends of the second stand columns. A universal shaft is arranged between the workbench and the top plate and comprises a first connecting piece, a second connecting piece and a cross shaft, the first connecting piece is fixedly arranged in the middle of the upper end of the workbench, the second connecting piece is arranged at the upper end of the first connecting piece, and the cross shaft is arranged between the first connecting piece and the second connecting piece. A fixing mechanism used for fixing the first connecting piece and the second connecting piece is arranged between the workbench and the top plate. The universal shaft gap detection device is good in use effect, and can quickly and conveniently fix the two ends of the universal shaft, so that the universal shaft gap detection work can be conveniently and quickly performed, and the detection efficiency of the universal shaft gap detection device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection mechanisms, in particular to a cross-shaft gap detection mechanism. Background Art

[0002] A common mechanical structure, the cross shaft, also known as a cross joint or universal joint, is a component that enables variable-angle power transmission. It typically consists of two concentric shafts, one centered on the other. The connection between the two shafts is designed as a cross, meaning the two shafts intersect at a 90-degree angle. This structure enables the cross shaft to transmit torque and rotational motion between the two shafts.

[0003] In the prior art, after the cross shaft is produced, it is often necessary to check the clearance of the cross shaft after assembly to prevent the cross shaft from being easily worn due to excessive clearance. In the prior art, there are many ways to detect the clearance of the cross shaft. One of them is to fix the two ends of the universal joint assembly, and then apply force in any direction to the cross shaft, that is, to push the cross shaft to make it move. At this time, a dial indicator or a micrometer is used to press against the cross shaft, and the amount of shaking of the cross shaft can be observed to determine the installation clearance of the cross shaft. However, this method is more troublesome for fixing the cross shaft. The prior art requires multiple screws and corresponding clamps to fix the two ends of the universal joint assembly, which is inconvenient to operate. Therefore, an improved cross shaft clearance detection mechanism is needed to address this problem. Utility Model Content

[0004] The purpose of the present utility model is to provide a cross-shaft gap detection mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a cross-axis gap detection mechanism, comprising a base plate, first columns are fixedly provided on both sides of the upper end of the base plate, a workbench is fixedly provided on the upper end of the first column, second columns are fixedly provided on both sides of the upper end of the workbench, a top plate is fixedly provided on the upper end of the second column, a universal joint is provided between the workbench and the top plate, the universal joint comprises a first connecting member, a second connecting member and a cross shaft, a first connecting member is fixedly provided in the middle of the upper end of the workbench, a second connecting member is provided on the upper end of the first connecting member, a cross shaft is provided between the first connecting member and the second connecting member, and a fixing mechanism for fixing the first connecting member and the second connecting member is provided between the workbench and the top plate.

[0006] Preferably, the fixing mechanism includes a first electric push rod, a movable frame, a notch, and a limit rod. The first electric push rod is fixedly provided on the upper end of the base plate, and the movable frame is fixedly provided on the movable end of the first electric push rod. Notches are provided on both sides of the upper end of the movable frame. A limit rod is movably provided inside the notch through a rotating shaft. The movable frame passes through the through hole of the first connecting member, and then the limit rod is rotated to make the limit rod horizontal. Subsequently, the first electric push rod is contracted to move the limit rod downward, so that the first connecting member can be firmly fixed to the upper end of the workbench through the limit rod.

[0007] Preferably, when the limit rod is horizontal, the length is greater than the width of the movable frame, and the width of the movable frame can just pass through the through hole of the first connecting member. When the limit rod is horizontal, since the length of the limit rod is greater than the width of the movable frame, when the limit rod moves downward, the first connecting member is quickly fixed to the upper end of the workbench.

[0008] Preferably, the fixing mechanism also includes a second electric push rod and a limit rod. The second electric push rod is fixedly provided on the upper end of the top plate, and the limit rod is fixedly provided on the movable end of the second electric push rod. By inserting the limit rod into the interior of the second connecting member, the second connecting member can be fixed accordingly.

[0009] Preferably, a bracket is fixedly provided on one side of the upper end of the workbench, and a micrometer is provided on the upper end of the bracket. The micrometer is fitted on the cross shaft. When the first connecting member and the second connecting member are fixed, the size of the gap of the cross shaft can be judged by observing the value change of the micrometer when shaking the cross shaft.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The utility model ensures that the limit rod is horizontal, and then extends the first electric push rod to make the movable frame pass through the through hole of the first connecting member, and then rotates the limit rod to make the limit rod horizontal, and then controls the first electric push rod to retract, so that the first connecting member can be firmly fixed to the upper end of the workbench through the limit rod, and then extends the second electric push rod to make the limit rod inserted into the inside of the second connecting member, so that the fixation of the second connecting member can be completed, so that the two ends of the universal shaft can be fixed quickly and conveniently, so that the cross shaft gap detection work can be carried out quickly and conveniently, thereby improving the detection efficiency of the device.

[0012] The entire fixing process of the utility model is convenient and quick, and does not require other complicated operations, so the utility model can be easily promoted and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a cross-shaft gap detection mechanism of the present utility model;

[0014] Figure 2 This is an overall structural view of a fixing mechanism in a cross-shaft gap detection mechanism of the present invention;

[0015] Figure 3 This is an exploded view of a fixing mechanism in a cross-shaft gap detection mechanism of the present invention;

[0016] Figure 4 This is an installation view of a limit rod in a cross-shaft gap detection mechanism of the utility model.

[0017] In the figure: 1. Base plate; 2. First column; 3. Workbench; 4. Second column; 5. Top plate; 6. First connecting piece; 7. Second connecting piece; 8. Cross shaft; 9. First electric push rod; 10. Movable frame; 11. Notch; 12. Limit rod; 13. Second electric push rod; 14. Limit rod; 15. Bracket; 16. Micrometer. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-4 The utility model provides a technical solution: a cross-shaft 8 gap detection mechanism, comprising a base plate 1, first columns 2 are fixedly provided on both sides of the upper end of the base plate 1, a workbench 3 is fixedly provided on the upper end of the first column 2, second columns 4 are fixedly provided on both sides of the upper end of the workbench 3, a top plate 5 is fixedly provided on the upper end of the second column 4, a universal joint is provided between the workbench 3 and the top plate 5, and the universal joint includes a first connecting member, a second connecting member 7, and a cross-shaft 8, a first connecting member is fixedly provided at the middle part of the upper end of the workbench 3, a second connecting member 7 is provided at the upper end of the first connecting member, a cross-shaft 8 is provided between the first connecting member and the second connecting member 7, and a fixing mechanism for fixing the first connecting member and the second connecting member 7 is provided between the workbench 3 and the top plate 5.

[0020] The fixing mechanism includes a first electric push rod 9, a movable frame 10, a notch 11, and a limit rod 14. The first electric push rod 9 is fixedly provided on the upper end of the base plate 1, and the movable frame 10 is fixedly provided on the movable end of the first electric push rod 9. Notches 11 are provided on both sides of the upper end of the movable frame 10. A limit rod 14 is movably provided inside the notch 11 through a rotating shaft. The limit rod 14 passes through the through hole of the first connecting member through the movable frame 10, and then the limit rod 14 is rotated to make the limit rod 14 horizontal. Subsequently, the first electric push rod 9 is contracted to move the limit rod 14 downward. In this way, the first connecting member can be firmly fixed to the upper end of the workbench 3 through the limit rod 14;

[0021] When the limiting rod 14 is horizontal, its length is greater than the width of the movable frame 10, and the width of the movable frame 10 can just pass through the through hole of the first connecting member. When the limiting rod 14 is horizontal, since its length is greater than the width of the movable frame 10, when the limiting rod 14 moves downward, the first connecting member is quickly fixed to the upper end of the workbench 3.

[0022] The fixing mechanism also includes a second electric push rod 13 and a limiting rod 14. The second electric push rod 13 is fixedly provided on the upper end of the top plate 5, and the limiting rod 14 is fixedly provided on the movable end of the second electric push rod 13. By inserting the limiting rod 14 into the interior of the second connecting member 7, the second connecting member can be fixed accordingly.

[0023] A bracket 15 is fixedly provided on one side of the upper end of the workbench 3, and a micrometer 16 is provided on the upper end of the bracket 15. The micrometer 16 is fitted on the cross shaft 8. When the first connecting member and the second connecting member 7 are fixed, when the cross shaft 8 is shaken, the size of the gap of the cross shaft 8 can be judged by observing the value change of the micrometer 16.

[0024] Working principle: When using this device and needing to detect the clearance of the cross shaft 8, first fix the universal joint. When fixing, place the universal joint on the upper end of the workbench 3, and then translate along the workbench 3 so that the universal joint translates to the upper end of the limit rod 14 and fits with the detection end of the dial indicator 16. Then ensure that the limit rod 14 is horizontal, and then extend the first electric push rod 9 so that the movable frame 10 passes through the through hole of the first connecting piece, and then rotate the limit rod 14 to make the limit rod 14 horizontal, and then control the first electric push rod 9 to retract, so that the limit rod 14 can be firmly fixed. The first connecting member is fixed to the upper end of the workbench 3, and then the second electric push rod 13 is extended to allow the limit rod 14 to be inserted into the second connecting member 7, so that the second connecting member 7 can be fixed. In this way, the two ends of the universal joint can be fixed quickly and conveniently, so that the clearance detection of the cross shaft 8 can be carried out quickly and conveniently, thereby improving the detection efficiency of the present device. It should be noted that in order to prevent motion interference between the detection end of the micrometer 16 and the universal joint, when installing and removing the universal joint, the universal joint should be installed and removed by moving horizontally at the upper end of the workbench 3;

[0025] In this way, the entire fixing process of the device is convenient and quick, and no other complicated operations are required, so it can be easily promoted and used.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cross-shaft gap detection mechanism, comprising a base plate (1), characterized in that: A first column (2) is fixedly provided on both sides of the upper end of the bottom plate (1), a workbench (3) is fixedly provided on the upper end of the first column (2), a second column (4) is fixedly provided on both sides of the upper end of the workbench (3), a top plate (5) is fixedly provided on the upper end of the second column (4), a universal joint is provided between the workbench (3) and the top plate (5), the universal joint comprises a first connecting member, a second connecting member (7), and a cross shaft (8), a first connecting member is fixedly provided at the middle of the upper end of the workbench (3), a second connecting member (7) is provided at the upper end of the first connecting member, a cross shaft (8) is provided between the first connecting member and the second connecting member (7), and a fixing mechanism for fixing the first connecting member and the second connecting member (7) is provided between the workbench (3) and the top plate (5).

2. The cross-shaft gap detection mechanism according to claim 1, characterized in that: The fixing mechanism comprises a first electric push rod (9), a movable frame (10), a notch (11), and a limit rod (14); the first electric push rod (9) is fixedly provided at the upper end of the base plate (1); the movable frame (10) is fixedly provided at the movable end of the first electric push rod (9); notches (11) are provided on both sides of the upper end of the movable frame (10); and a limit rod (14) is movably provided inside the notch (11) via a rotating shaft.

3. The cross-shaft clearance detection mechanism according to claim 2, characterized in that: When the limiting rod (14) is horizontal, its length is greater than the width of the movable frame (10).

4. The cross-shaft gap detection mechanism according to claim 1, characterized in that: The fixing mechanism further comprises a second electric push rod (13) and a limiting rod (14); the second electric push rod (13) is fixedly provided at the upper end of the top plate (5); and the limiting rod (14) is fixedly provided at the movable end of the second electric push rod (13).

5. The cross-shaft gap detection mechanism according to claim 1, characterized in that: A bracket (15) is fixedly provided on one side of the upper end of the workbench (3), and a dial indicator (16) is provided on the upper end of the bracket (15).

Images