Device for detecting gap between chain sleeve and pin shaft

Abstract

The utility model relates to the technical field of chain production, in particular to a chain sleeve and pin shaft gap detection device which comprises a sleeve limiting structure, a hollow pin shaft fixing structure and a gap gauge, the sleeve limiting structure comprises a bottom plate, a lifting sliding block is slidably installed on the edge of the rear side of the upper surface of the bottom plate, and sleeve clamping jaws are slidably installed at the two ends of the front side of the lifting sliding block; the hollow pin shaft fixing structure comprises a base column, the base column is fixedly installed in the middle of the upper surface of the bottom plate, and supporting pieces are clamped to the two sides of the base column; and the clearance gauge is accommodated at one side of the lifting slide block. The sleeve and the hollow pin shaft are connected in a sleeved mode, the hollow pin shaft is connected to the base column in a sleeved mode, the two sleeve clamping jaws are synchronously controlled to be close to each other, the sleeve is forcibly centered and clamped, the supporting pieces on the two sides are synchronously expanded and unfolded, the hollow pin shaft is forcibly centered and limited, and meanwhile the pin shaft and the center shaft of the sleeve are completely overlapped. At this time, the gap gauge is taken out and inserted into the gap between the sleeve and the pin shaft for measurement, thereby visually obtaining accurate data.

Description

Technical Field

[0001] This utility model relates to the field of chain manufacturing technology, specifically a device for detecting the gap between a chain sleeve and a pin. Background Technology

[0002] As a transmission component, a chain is a chain structure composed of various nodes hinged together by sleeves and pins. The gap between the sleeves and pins is an important condition for ensuring the free and stable rotation of each node. In order to reduce weight, some large chain structures will design the pins as hollow structures. When the gap is too large, the sleeves and pins will wobble against each other, affecting the transmission stability. When the gap is too small, the friction between the sleeves and pins will be too large, affecting the smoothness of rotation. Therefore, it is necessary to measure the gap between the sleeves and pins during the chain production process.

[0003] The current method of gap detection involves inserting a gap gauge directly into the gap between the sleeve and the pin. This pushes the pin towards one side of the sleeve, forming a crescent-shaped gap. If the gap gauge is located off-center from the center of the crescent-shaped gap, incorrect gap size data will be obtained, and the accuracy of the detection needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a device for detecting the gap between a chain sleeve and a pin, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for detecting the gap between a chain sleeve and a pin includes:

[0007] A sleeve limiting structure, the sleeve limiting structure includes a base plate, a lifting slider is slidably installed on the rear edge of the upper surface of the base plate, and sleeve grippers are slidably installed at both ends of the front side of the lifting slider.

[0008] A hollow pin fixing structure includes a base column, which is fixedly installed on the middle of the upper surface of a base plate, and support plates are snapped onto both sides of the base column;

[0009] The gap gauge is housed on one side of the lifting slider.

[0010] Furthermore, the sleeve limiting structure also includes:

[0011] Fastening screws are fixedly installed at the four corners of the base plate;

[0012] A bubble level, wherein the bubble level is embedded in the upper surface of the base plate;

[0013] A lifting slide groove is formed on the rear edge of the upper surface of the base plate, and a lifting slider is slidably engaged in the lifting slide groove;

[0014] The first lifting screw is rotatably installed at the bottom of the lifting slide groove, and the first lifting screw is screwed into the bottom of the lifting slider.

[0015] The first worm gear is fixedly installed at the lower end of the first lifting screw;

[0016] The first worm gear meshes with one side of the first worm wheel;

[0017] The first handle is fixedly installed at the rear end of the first worm gear.

[0018] Furthermore, the sleeve limiting structure also includes:

[0019] The No. 1 internal threaded sliding sleeve is slidably engaged with both ends of the front surface of the lifting slider, and the No. 1 internal threaded sliding sleeve is fixedly installed on the rear side of the sleeve clamp.

[0020] A bidirectional lead screw is rotatably installed inside the lifting slider, and both ends of the bidirectional lead screw are screwed into a No. 1 internal threaded sleeve.

[0021] The second worm gear is fixedly sleeved in the middle of the bidirectional lead screw;

[0022] The second worm gear meshes with one side of the second worm wheel;

[0023] The second handle is fixedly installed on the upper end of the second worm gear.

[0024] Furthermore, the hollow pin fixing structure also includes:

[0025] The second lifting screw is rotatably installed inside the base column and extends into the bottom plate;

[0026] The No. 3 worm gear is fixedly installed at the lower end of the No. 2 lifting screw;

[0027] The No. 3 worm gear meshes with one side of the No. 3 worm wheel;

[0028] The No. 3 handle is fixedly installed at the front end of the No. 3 worm gear.

[0029] Furthermore, the hollow pin fixing structure also includes:

[0030] A limiting slide groove is formed on the upper surface of the base plate;

[0031] A limiting slider is fixedly installed at the lower end of the support piece, and the limiting slider is slidably engaged with the limiting groove;

[0032] The No. 2 internal threaded sliding sleeve is slidably installed inside the base column, and the No. 2 internal threaded sliding sleeve is screwed into the side surface of the No. 2 lifting screw.

[0033] The upper end of the support rod is hinged to the side surface of the No. 2 internal threaded sleeve, and the lower end of the support rod is hinged to the support plate.

[0034] Furthermore, the gap gauge includes:

[0035] A handle, which is snapped onto one side of the lifting slider;

[0036] The insert is fixedly installed on one side of the handle. The surface of one side of the insert has a stepped structure with a difference of 0.1 mm, and the alternation is a beveled structure.

[0037] Compared with the prior art, the beneficial effects of this utility model are:

[0038] Connect the sleeve and the hollow pin together, and attach the hollow pin to the base column. Simultaneously control the two sleeve jaws to move closer together, forcibly centering and clamping the sleeve. At the same time, simultaneously expand and unfold the support plates on both sides of the base column to forcibly center and limit the hollow pin, ensuring that the central axis of the pin and the sleeve completely overlap. Then, take out the gap gauge and insert it into the gap between the sleeve and the pin to measure, obtaining accurate data intuitively. This avoids directly inserting the gap gauge and squeezing the pin to one side, creating a gap that is larger in the middle and smaller on both sides, which would affect the measurement accuracy. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0040] Figure 2 This is a schematic diagram of the sleeve limiting structure in this utility model;

[0041] Figure 3 This is a schematic diagram of the hollow pin fixing structure in this utility model;

[0042] Figure 4 This is a schematic diagram of the hollow pin fixing structure in this utility model;

[0043] Figure 5 This is a schematic diagram of the gap gauge in this utility model.

[0044] In the diagram: 1. Sleeve limiting structure; 101. Base plate; 102. Fastening bolt; 103. Bubble level; 104. Lifting slide rail; 105. Lifting slider; 106. No. 1 lifting screw; 107. No. 1 worm gear; 108. No. 1 worm; 109. No. 1 handle; 110. No. 1 internal threaded sleeve; 111. Sleeve clamp; 112. Double-acting screw; 113. No. 2 worm gear; 11 4. Worm Gear No. 2; 115. Handle No. 2; 2. Hollow Pin Shaft Fixing Structure; 201. Lifting Screw No. 2; 202. Worm Gear No. 3; 203. Worm Gear No. 3; 204. Handle No. 3; 205. Limiting Slide Groove; 206. Limiting Slider; 207. Base Column; 208. Internal Threaded Sleeve No. 2; 209. Support Rod; 210. Support Plate; 3. Clearance Gauge; 301. Handle; 302. Insert Plate. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] Please see Figure 1-5 In this embodiment of the utility model, a chain sleeve and pin gap detection device includes a sleeve limiting structure 1, a hollow pin fixing structure 2, and a gap gauge 3. The sleeve limiting structure 1 includes a base plate 101, a lifting slider 105 is slidably installed on the rear edge of the upper surface of the base plate 101, and sleeve grippers 111 are slidably installed at both ends of the front side of the lifting slider 105. The hollow pin fixing structure 2 includes a base column 207, which is fixedly installed in the middle of the upper surface of the base plate 101, and support plates 210 are snapped on both sides of the base column 207. The gap gauge 3 is housed on one side of the lifting slider 105.

[0047] Specifically, the sleeve and the hollow pin are interlocked, and the hollow pin is fitted onto the base column 207. Simultaneously, the two sleeve clamps 111 are controlled to move closer to each other, forcibly centering the sleeve and clamping it. At the same time, the support plates 210 on both sides of the base column 207 are expanded and unfolded, forcibly centering the hollow pin and limiting its position. This ensures that the central axes of the pin and the sleeve are completely overlapped. At this point, the gap gauge 3 is inserted into the gap between the sleeve and the pin for measurement, providing a direct and accurate reading. This avoids directly inserting the gap gauge 3, which would push the pin to one side, creating a gap that is larger in the middle and smaller on both sides, thus affecting the measurement accuracy.

[0048] Example 1

[0049] like Figure 1-3As shown, in this embodiment, the sleeve limiting structure 1 further includes fastening screws 102, a bubble level 103, a lifting groove 104, a first lifting screw 106, a first worm gear 107, a first worm 108, and a first handle 109. The fastening screws 102 are fixedly installed at the four corners of the base plate 101; the bubble level 103 is embedded in the upper surface of the base plate 101; the lifting groove 104 is opened at the rear edge of the upper surface of the base plate 101, and a lifting slider 105 is slidably engaged in the lifting groove 104; the first lifting screw 106 is rotatably installed at the bottom of the lifting groove 104, and the first lifting screw 106 and the bottom of the lifting slider 105 are screwed together; the first worm gear 107 is fixedly installed at the lower end of the first lifting screw 106; the first worm 108 and one side of the first worm gear 107 are meshed together; and the first handle 109 is fixedly installed at the rear end of the first worm 108.

[0050] In this embodiment, when dealing with chain sleeves and pins of different sizes, the first worm gear 107 can be rotated by the first handle 109, which in turn drives the first lifting screw 106 to rotate, causing the lifting slider 105 to slide up and down in the lifting groove 104, thereby adjusting the height of the sleeve clamp 111 to adapt to sleeve structures of different heights.

[0051] like Figure 5 As shown, in this embodiment, the gap gauge 3 includes a handle 301 and an insert 302. The handle 301 is snapped onto one side of the lifting slider 105; the insert 302 is fixedly installed on one side of the handle 301. The surface of one side of the insert 302 is provided with a stepped structure that differs by 0.1 mm, and the alternation is a sloping structure.

[0052] In practice, when measuring the gap, the insert 302 is pulled out from one side of the lifting slider 105 by the handle 301 and gradually inserted into the gap between the sleeve and the pin. The gap size data is obtained by observing which step the insert 302 is inserted into.

[0053] Example 2

[0054] Based on Embodiment 1, in order to compensate for the fact that Embodiment 1 did not mention the specific limiting method of the sleeve and pin through the sleeve limiting structure 1 and the hollow pin fixing structure 2.

[0055] like Figure 1-4As shown, in this embodiment, the sleeve limiting structure 1 further includes a first internal threaded sleeve 110, a double-acting screw 112, a second worm gear 113, a second worm 114, and a second handle 115. The first internal threaded sleeve 110 is slidably engaged with both ends of the front surface of the lifting slider 105, and the first internal threaded sleeve 110 is fixedly installed on the rear side of the sleeve clamp 111. The double-acting screw 112 is rotatably installed inside the lifting slider 105, and both ends of the double-acting screw 112 are screwed and sleeved with the first internal threaded sleeve 110. The second worm gear 113 is fixedly sleeved in the middle of the double-acting screw 112. The second worm 114 meshes with one side of the second worm gear 113. The second handle 115 is fixedly installed on the upper end of the second worm 114. The hollow pin fixing structure 2 further includes a second lifting screw 201, a third worm gear 202, a third worm 203, a third handle 204, a limiting groove 205, and a limiting... The slider 206, the second internal threaded sleeve 208, and the support rod 209 are all present. The second lifting screw 201 is rotatably installed inside the base column 207 and extends into the base plate 101. The third worm gear 202 is fixedly installed at the lower end of the second lifting screw 201. The third worm 203 meshes with one side of the third worm gear 202. The third handle 204 is fixedly installed at the front end of the third worm 203. The limiting groove 205 is formed at the bottom. The upper surface of plate 101; the limiting slider 206 is fixedly installed at the lower end of the support plate 210, and the limiting slider 206 is slidably engaged with the limiting groove 205; the second internal threaded sleeve 208 is slidably installed inside the base column 207, and the second internal threaded sleeve 208 is screwed into the side surface of the second lifting screw 201; the upper end of the support rod 209 is hinged to the side surface of the second internal threaded sleeve 208, and the lower end of the support rod 209 is hinged to the support plate 210.

[0056] In specific implementation, during the limiting phase, the second worm gear 114 is rotated by the second handle 115, which in turn rotates the second worm wheel 113, thereby controlling the rotation of the bidirectional lead screw 112. This causes the first internal threaded sleeves 110 at both ends to slide synchronously, controlling the two sleeve clamps 111 to clamp and hold the sleeve for forced centering and limiting. At the same time, the third handle 204 is rotated to rotate the third worm gear 203, which in turn rotates the third worm wheel 202, thereby controlling the rotation of the second lifting lead screw 201. This synchronously controls each second internal threaded sleeve 208 to slide downward, forcing each support rod 209 to tend towards horizontal adjustment angle, thereby controlling the two support plates 210 to unfold and abut against the inner wall of the hollow pin shaft for forced centering and limiting.

[0057] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0058] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A chain bushing and pin shaft gap detection device, characterized by, include: A sleeve limiting structure (1) includes a base plate (101), a lifting slider (105) is slidably installed on the rear edge of the upper surface of the base plate (101), and sleeve grippers (111) are slidably installed at both ends of the front side of the lifting slider (105). Hollow pin fixing structure (2), the hollow pin fixing structure (2) includes a base column (207), the base column (207) is fixedly installed on the middle of the upper surface of the base plate (101), and the base column (207) is clamped with support plates (210) on both sides. Gap gauge (3), which is housed on one side of the lifting slider (105).

2. The chain sleeve and pin clearance detection device according to claim 1, characterized in that, The sleeve limiting structure (1) also includes: Fastening screws (102) are fixedly installed at the four corners of the base plate (101); A bubble level (103) is embedded in the upper surface of the base plate (101); A lifting slide (104) is provided on the rear edge of the upper surface of the base plate (101), and a lifting slider (105) is slidably engaged in the lifting slide (104). The first lifting screw (106) is rotatably installed at the bottom of the lifting slide (104), and the first lifting screw (106) is screwed into the bottom of the lifting slider (105); The first worm gear (107) is fixedly installed at the lower end of the first lifting screw (106); The first worm (108) meshes with the first worm wheel (107) on one side; The first handle (109) is fixedly installed at the rear end of the first worm (108).

3. The chain sleeve and pin clearance detection device according to claim 1 or 2, characterized in that, The sleeve limiting structure (1) also includes: The No. 1 internal threaded sliding sleeve (110) is slidably engaged with both ends of the front surface of the lifting slider (105), and the No. 1 internal threaded sliding sleeve (110) is fixedly installed on the rear side of the sleeve clamp (111). A bidirectional lead screw (112) is rotatably installed inside the lifting slider (105), and both ends of the bidirectional lead screw (112) are screwed into the first internal threaded sleeve (110). The second worm gear (113) is fixedly sleeved in the middle of the double-acting lead screw (112); The second worm (114) meshes with the second worm wheel (113) on one side; The second handle (115) is fixedly installed on the upper end of the second worm (114).

4. The chain sleeve and pin clearance detection device according to claim 1, characterized in that, The hollow pin fixing structure (2) also includes: The second lifting screw (201) is rotatably installed inside the base column (207) and extends into the bottom plate (101); The No. 3 worm gear (202) is fixedly installed at the lower end of the No. 2 lifting screw (201); The third worm gear (203) meshes with the third worm wheel (202) on one side; The No. 3 handle (204) is fixedly installed at the front end of the No. 3 worm gear (203).

5. The chain sleeve and pin clearance detection device according to claim 1 or 4, characterized in that, The hollow pin fixing structure (2) also includes: A limiting slide groove (205) is provided on the upper surface of the base plate (101); Limiting slider (206), the limiting slider (206) is fixedly installed at the lower end of the support plate (210), and the limiting slider (206) is slidably engaged with the limiting groove (205); The No. 2 internal threaded sliding sleeve (208) is slidably installed inside the base column (207), and the No. 2 internal threaded sliding sleeve (208) is screwed into the side surface of the No. 2 lifting screw (201). The upper end of the support rod (209) is hinged to the side surface of the second internal threaded sleeve (208), and the lower end of the support rod (209) is hinged to the support plate (210).

6. The chain sleeve and pin clearance detection device according to claim 1, characterized in that, The gap gauge (3) includes: A handle (301) is snapped onto one side of the lifting slider (105); Insert (302), the insert (302) is fixedly installed on one side of the handle (301), and the surface of one side of the insert (302) is provided with a stepped structure with a difference of 0.1 mm, and the alternation is a sloping structure.

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