Positioning tire for machining inner arc of mining arc tooth connecting chain ring

By designing the inner arc carcass, positioning plates and pressing plate structures, the difficulty in positioning the blanks for mineral arc teeth joints is solved, and a high-precision and stable processing process is achieved, which is suitable for blanks of different specifications.

CN222327985UActive Publication Date: 2025-01-10NINGXIA TIANDI BENNIU CHAIN
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Patent Information

Application Number
CN202421202601.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-01-10
Estimated Expiration
2034-05-29

AI Technical Summary

Technical Problem

The mining arc tooth joint links are difficult to accurately locate during the processing process, resulting in processing errors and service life problems.

Method used

Design a positioning tire for internal arc processing of mineral arc teeth link chain rings. Through the combined structure of the inner arc carcass, positioning plates, limiting bosses, small pressure plates and large pressure plates, the preliminary and secondary positioning of the blank is achieved. And it is fixed by bolts to ensure stability during processing.

Benefits of technology

It effectively reduces the difficulty of positioning the blank during the processing process, improves the processing accuracy and stability, avoids positioning errors, and is suitable for positioning blanks of different specifications, improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a positioning tire for machining an inner arc of a mining arc tooth connecting chain ring, which is used for positioning a blank for machining the mining arc tooth connecting chain ring, and comprises an inner arc tire body, an outer arc tire body and a positioning device, the positioning plate is arranged in the groove of the inner arc tire body and is matched with the arc part of the blank; the small pressing plate is installed on the inner arc tire body and abuts against the inner arc part of the blank; and the large pressing plate is mounted on the small pressing plate and clamps the surface of the outer arc part of the blank. According to the positioning tire for machining the inner arc of the mining arc toothed chain ring, preliminary positioning of a blank is completed through the inner arc tire body and the positioning plate, secondary positioning and clamping of the blank are completed through the small pressing plate and the large pressing plate, and the problem that in the prior art, the blank is difficult to position is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of processing arc toothed chain rings for mining, in particular to a positioning tire for processing inner arcs of arc toothed chain rings for mining. Background Art

[0002] Arc tooth connecting chain ring is an important part in the transmission structure of scraper conveyor in coal mines. It is a vulnerable part during use, with a high replacement frequency and large usage. Improving the quality and production efficiency of the connecting chain ring can reduce the frequency of scraper conveyor shutdown, thereby increasing the production capacity of coal mines.

[0003] The current mining arc tooth chain ring is very difficult to process due to its special shape. One of the main difficulties in processing is that the mining arc tooth chain ring has high precision requirements. During the production process, the blank of the mining arc tooth chain ring needs to be repeatedly positioned. When the positioning is inaccurate, it will cause processing errors and affect the service life of the mining arc tooth chain ring. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that the blank of the arc tooth connecting chain ring for mining is difficult to position during the processing.

[0005] In order to achieve the above-mentioned purpose, the present application proposes a positioning tire for inner arc processing of arc toothed chain rings for mining, which is used for positioning the blanks for arc toothed chain rings for mining, wherein the blank comprises: an arc portion, an outer arc portion and an inner arc portion, and the positioning tire comprises: an inner arc carcass; a positioning plate arranged in a groove of the inner arc carcass and matching the arc portion of the blank; a small pressure plate installed on the inner arc carcass and resting against the inner arc portion of the blank; a large pressure plate installed on the small pressure plate and clamping the surface of the outer arc portion of the blank; wherein the surface of the inner arc carcass is used to place the blank, and the positioning plate is installed in a groove provided on the inner arc carcass. When the blank is placed on the inner arc carcass, the arc portion is pressed against the positioning plate to complete the preliminary positioning of the blank. The small pressure plate and the large pressure plate are fixed to the inner arc carcass by bolts, wherein the small pressure plate is installed below the inner arc portion of the blank, and the pressure plate is installed above the small pressure plate and the blank, and is used to clamp the blank to prevent it from displacement during processing.

[0006] Furthermore, the inner arc carcass includes: a carcass for placing the blank; a positioning plate mounting portion arranged in the middle of the carcass for mounting the positioning plate in cooperation with the arc portion of the blank; a limiting boss arranged on the carcass for resisting the inner arc portion of the blank, the limiting boss being integrally formed with the carcass and being provided with a threaded through hole.

[0007] Furthermore, the positioning plate includes: a positioning plate limiting portion and a blank limiting portion, wherein the positioning plate limiting portion is in the shape of a rectangular parallelepiped, and its size is the same as the rectangular groove opened on the positioning plate mounting portion; the blank limiting portion is in the shape of a partial column, and the surface of the column has the same curvature as the arc portion. Since the positioning plate limiting portion is in the shape of a rectangular parallelepiped.

[0008] Furthermore, the positioning plate is installed in a rectangular groove of the installation portion, and the blank limiting portion protrudes from the surface of the inner arc carcass and is placed on the inner arc surface of the circular arc portion.

[0009] Furthermore, the small pressure plate is provided with a rectangular groove, the width of which is the same as the width of the limiting boss, and the small pressure plate is provided with a through hole that matches the limiting boss and the threaded through hole on the tire body. The small pressure plate of the present application is provided with a groove, and the groove is clamped on the limiting boss to improve the stability of the small pressure plate. At the same time, the small pressure plate is installed on the limiting boss. By increasing the thickness of the small pressure plate, its plane is higher than the surface of the blank. In this way, when installing the large pressure plate, the clamping effect of the large pressure plate on the small pressure plate can be enhanced by setting a groove on the large pressure plate.

[0010] Furthermore, the large pressure plate is provided with a groove, one end face of the groove is pressed on the limiting boss, and the other end face is pressed on the inner arc portion of the blank to be processed, and the large pressure plate is provided with a through hole matching the threaded through hole on the small pressure plate. The large pressure plate of the present application is provided with a groove, the bottom of the large pressure plate groove is fitted with the surface of the small pressure plate, and the top surface of the large pressure plate groove is fitted with the surface of the blank, while completing the clamping of the blank. The structure of the groove can increase the stability of the large pressure plate, especially when the positioning tire is rotating or other movements, the groove is stuck on the small pressure plate, which can effectively prevent the large pressure plate from displacement.

[0011] The beneficial effects of this application are:

[0012] 1. The present application relates to a positioning tire for inner arc processing of an arc toothed chain ring for mining, which completes the initial positioning of the blank by setting a limiting boss on the inner arc tire body and setting a positioning plate to cooperate with the inner arc surface of the arc toothed chain ring for mining, and then completes the secondary positioning and fastening of the blank by connecting the large pressure plate, the small pressure plate and the inner arc tire body through bolts. The structure is simple and the installation is convenient, which can effectively reduce the difficulty of positioning the blank during the processing.

[0013] 2. The small pressure plate of the present application is provided with a groove, and the groove is clamped on the limiting boss to improve the stability of the small pressure plate. At the same time, the small pressure plate is installed on the limiting boss. By increasing the thickness of the small pressure plate, its plane is higher than the surface of the blank. In this way, when installing the large pressure plate, the clamping effect of the large pressure plate on the small pressure plate can be enhanced by setting a groove on the large pressure plate.

[0014] 3. The large pressure plate of the present application is provided with a groove, the bottom of the large pressure plate groove fits with the surface of the small pressure plate, and the top surface of the large pressure plate groove fits with the surface of the blank, completing the clamping of the blank. At the same time, the structure of the groove can increase the stability of the large pressure plate, especially when the positioning tire is rotating or other movements, the groove is stuck on the small pressure plate, which can effectively prevent the large pressure plate from displacement.

[0015] 4. The positioning tire for inner arc processing of arc toothed chain rings for mining in the present application can realize the positioning of blanks of different specifications by installing small pressure plates of different thicknesses, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the assembly structure of a positioning tire for inner arc processing of arc toothed chain rings for mining in an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the structure of the inner arc boss in the embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the structure of the positioning plate in the embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of the small pressing plate in the embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of the structure of the large pressing plate in the embodiment of the present application;

[0022] Figure 6 This is a schematic diagram of the structure of the blank in the embodiment of the present application;

[0023] Description of reference numerals:

[0024] 1. Inner arc carcass; 11. Carcass; 12. Positioning plate mounting portion; 13. Limiting boss;

[0025] 2. Positioning plate; 21. Positioning plate limiting part; 22. Blank limiting part;

[0026] 3. Small pressing plate;

[0027] 4. Large pressing plate;

[0028] 5. Blank; 51. Arc portion; 52. Outer arc portion; 53. Inner arc portion. DETAILED DESCRIPTION

[0029] The following will be combined with the attached Figures 1 to 6 The embodiments of the technical solution of the present application are described in detail. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0030] like Figure 1 The present application illustrates a positioning tire for inner arc processing of arc toothed chain rings for mining, which includes: an inner arc tire body 1; a positioning plate 2 arranged in a groove of the inner arc tire body 1 and cooperating with the arc portion 51 of the blank 5; a small pressure plate 3 installed on the inner arc tire body 1 and resting against the inner arc portion 53 of the blank 5; and a large pressure plate 4 installed on the small pressure plate 3 and clamping the surface of the outer arc portion 52 of the blank 5.

[0031] In one embodiment of the present application, the inner arc carcass 1 is used to install the blank 5, and the positioning plate 2 is installed on the inner arc carcass 1, and its installation position corresponds to the arc portion 51 of the blank 5. Specifically, the portion of the positioning plate 2 that protrudes from the surface of the inner arc carcass 1 is stuck on the arc portion 51, thereby completing the preliminary positioning of the blank 5. The small pressure plate 3 and the large pressure plate 4 are fixed to the inner arc carcass 1 by bolts to complete the clamping of the blank 5.

[0032] In the prior art, the blank is usually positioned by using a rotating disc and a fixture. However, the rotating disc and the fixture have high requirements for concentricity. It is difficult for the rotation center to be consistent with the machining center of the workpiece. Any eccentricity will cause the workpiece to vibrate during rotation, affecting the machining quality. Therefore, regular maintenance and calibration of mechanical components are required to ensure their accuracy and reliability. At the same time, due to the complex tooth shape of the chain link, specially designed fixtures are required, which increases cost and complexity.

[0033] In this embodiment, since the inner arc carcass 1 and the positioning plate 2 can limit the positions of the circular arc portion 51 and the inner arc portion 53 of the blank 5, the preliminary positioning of the blank can be completed. At the same time, the small pressure plate 3 and the large pressure plate 4 are fixed on the inner arc carcass 1, the small pressure plate 3 completes the further positioning of the inner arc portion 53, and the large pressure plate 4 completes the clamping of the blank, so that the positioning and installation of the blank 5 can be realized, which solves the problem of high centering requirements of rotating discs, clamps and other devices in the prior art.

[0034] Continue to refer to Figure 1 and Figure 2The inner arc carcass 1 includes: a carcass 11 for placing the blank 5; a positioning plate mounting portion 12 arranged in the middle of the carcass 11, for mounting the positioning plate 2 in cooperation with the arc portion 51 of the blank 5; a limiting boss 13 arranged on the carcass 11, for resisting against the inner arc portion 53 of the blank 5, the limiting boss 13 is integrally formed with the carcass 11, and is provided with a threaded through hole. In this embodiment, the end face of the limiting boss 13 is tightly pressed against the inner arc portion 53 of the blank 5 to complete the limitation of the position of the blank 5.

[0035] The positioning plate mounting portion 12 is provided with a rectangular groove for cooperating with the positioning plate 2 so that the positioning plate 2 does not move during use.

[0036] Continue to refer to Figure 3 The positioning plate 2 includes: a positioning plate limiting portion 21 and a blank limiting portion 22, wherein the positioning plate limiting portion 21 is in the shape of a rectangular parallelepiped, and its size is the same as the rectangular groove opened on the positioning plate mounting portion 12; the blank limiting portion 22 is in the shape of a partial cylinder, and the surface of the cylinder has the same curvature as the arc portion 51; in this embodiment, the positioning plate limiting portion 21 is installed in the rectangular groove, which plays a role in preventing the positioning plate 2 from rotating, and the blank limiting portion 22 in the shape of a column fits tightly with the arc portion 51 of the blank 5 to limit the position of the blank 5.

[0037] Furthermore, the positioning plate 2 is installed in the rectangular groove of the mounting portion 12, and the blank limiting portion 22 protrudes from the surface of the inner arc carcass 1 and is placed on the inner arc surface of the arc portion 51. The blank is initially positioned by limiting the position of the arc portion 51 by the blank limiting portion 22.

[0038] Continue to refer to Figure 4 , the small pressing plate 3 is provided with a rectangular groove, the width of which is the same as that of the limiting boss 13, and the small pressing plate 3 is provided with a through hole that matches the limiting boss 13 and the threaded through hole on the tire body 11. In this embodiment, the small pressing plate 3 is fixed on the limiting boss 13 by screwing a bolt into the threaded through hole; the sum of the thickness of the small pressing plate 3 and the limiting boss 13 is greater than the thickness of the blank 5, so that the surface of the small pressing plate 3 is higher than the surface of the blank 5, which can not only perform secondary positioning on the blank 5, but also provide a fixed position for the groove on the large pressing plate 4; during use, the groove on the small pressing plate 3 can be stuck on the end face of the limiting boss 13 to prevent the small pressing plate 3 from being displaced during the processing of the blank 5.

[0039] Continue to refer to Figure 5The large pressing plate 4 is provided with a groove, one end face of the groove is pressed on the limiting boss 13, and the other end face is pressed on the inner arc portion 53 of the blank 5 to be processed, and the large pressing plate 4 is provided with a through hole matching the threaded through hole on the small pressing plate 3. In this embodiment, the large pressing plate 4 is fixed on the small pressing plate 3 by screwing bolts into the threaded through holes, and the groove on the large pressing plate 4 can be stuck on the protruding plane of the small pressing plate 3 relative to the blank 5 during use to prevent the large pressing plate 4 from being displaced during the processing of the blank 5.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A positioning tire for processing the inner arc of a mining arc toothed chain ring, used for positioning a blank (5) for processing a mining arc toothed chain ring, the blank (5) comprising: The invention relates to a tire having an arc portion (51), an outer arc portion (52) and an inner arc portion (53), wherein the positioning tire comprises: an inner arc tire body (1); a positioning plate (2) arranged in a groove of the inner arc tire body (1) and matching with the arc portion (51) of the blank (5); a small pressure plate (3) installed on the inner arc tire body (1) and resting against the inner arc portion (53) of the blank (5); and a large pressure plate (4) installed on the small pressure plate (3) and clamping the surface of the outer arc portion (52) of the blank (5).

2. The positioning tire for inner arc processing of arc toothed chain ring for mining according to claim 1, characterized in that: The inner arc carcass (1) comprises: a carcass (11) for placing a blank (5); a positioning plate mounting portion (12) arranged in the middle of the carcass (11) and used to cooperate with the circular arc portion (51) of the blank (5) to mount the positioning plate (2); and a limiting boss (13) arranged on the carcass (11) and used to abut against the inner arc portion (53) of the blank (5), wherein the limiting boss (13) is integrally formed with the carcass (11) and is provided with a threaded through hole.

3. The positioning tire for inner arc processing of arc toothed chain ring for mining according to claim 2, characterized in that: The positioning plate mounting portion (12) is provided with a rectangular groove.

4. The positioning tire for inner arc processing of arc toothed chain ring for mining according to claim 1 or 2, characterized in that: The positioning plate (2) comprises: a positioning plate limiting portion (21) and a blank limiting portion (22), wherein the positioning plate limiting portion (21) is in the shape of a rectangular parallelepiped, and its size is the same as the rectangular groove opened on the positioning plate mounting portion (12); the blank limiting portion (22) is in the shape of a partial column, and the surface of the column has the same curvature as the arc portion (51).

5. The positioning tire for inner arc processing of arc toothed chain ring for mining according to claim 4, characterized in that: The positioning plate limiting portion (21) is installed in the positioning plate installing portion (12), and the blank limiting portion (22) protrudes from the surface of the inner arc tire body (1) and is placed on the inner surface of the circular arc portion (51).

6. The positioning tire for inner arc processing of arc toothed chain ring for mining according to claim 1 or 2, characterized in that: The small pressing plate (3) is provided with a rectangular groove, the width of which is the same as the width of the limiting boss (13), and the small pressing plate (3) is provided with a through hole that matches the limiting boss (13) and the threaded through hole on the tire body (11).

7. The positioning tire for inner arc processing of arc toothed chain ring for mining according to claim 1 or 2, characterized in that: The large pressing plate (4) is provided with a groove, one end face of the groove is pressed on the limiting boss (13), and the other end face is pressed on the inner arc portion (53) of the blank (5) to be processed, and the large pressing plate (4) is provided with a through hole that matches the threaded through hole on the small pressing plate (3).