A new type of gear for a speed reducer

Abstract

The utility model discloses a novel gear for speed reducer, including gear body, the outer wall of gear body is fixedly connected with a plurality of gear teeth at equal distance around, the centre of gear body is passed and is established with the mounting hole, the utility model discloses a mounting mechanism is set up, when needing to replace wear -resisting ring, only need reverse rotation handle, drive second screw rod and first screw rod rotate, because first screw rod and second screw rod thread direction are opposite, make two screw plates move to the side of mutual far -away, thereby will second limit block from second limit groove, then pull wear -resisting ring to the forward side, and make first limit block separate first limit groove to the wear -resisting ring completely separate mounting hole, thereby can take down wear -resisting ring and replace, do not need to dismantle and assemble a large number of screws frequently, greatly improved the replacement efficiency of wear -resisting ring.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, specifically a novel gear for a speed reducer. Background Technology

[0002] In modern industrial production, speed reducers are widely used as important transmission equipment in various fields. Gears, as the core component of a speed reducer, directly affect its transmission efficiency, service life, and operational stability.

[0003] A search revealed that Chinese Patent CN207049287U discloses a high-wear-resistant gear for a speed reducer, comprising a gear body, a mounting hole in the middle of the gear body, an annular convex plate on the upper edge of the mounting hole, and a wear-resistant ring mounted on the annular convex plate, the wear-resistant ring being fixed to the annular convex plate by a limiting screw. Regarding the aforementioned related technology, the inventors have found at least the following problems: frequent disassembly and assembly of numerous screws is required when replacing the wear-resistant ring, resulting in low replacement efficiency. Therefore, we propose a novel gear for speed reducers. Utility Model Content

[0004] The purpose of this invention is to provide a novel gear for a speed reducer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel gear for a speed reducer, comprising a gear body, wherein multiple gear teeth are fixedly connected at equal intervals around the outer wall of the gear body, and a mounting hole is provided through the center of the gear body. A wear-resistant ring is movably inserted into the inner wall of the mounting hole, and both the front and rear sides of the wear-resistant ring extend to the outside of the mounting hole. The wear-resistant ring is connected to the gear body through a mounting mechanism, wherein the mounting mechanism includes a first limiting groove, a first limiting block, a connecting block, a second limiting groove, a fixing seat, a guide port, a first lead screw, a second lead screw, a handle, a threaded plate, and a second limiting block. Two first limiting grooves are symmetrically provided on the front side of the gear body, and the first limiting grooves are interconnected with the mounting hole.

[0006] Furthermore, the first limiting groove is internally engaged by a first limiting block, which is fixedly connected to the wear-resistant ring. Connecting blocks are movably connected to the front side of the gear body and to the top and bottom of the wear-resistant ring.

[0007] Furthermore, the connecting block is fixedly connected to the wear-resistant ring, and a second limiting groove is provided on both the left and right sides of the connecting block. A fixing seat is fixedly connected to the top and bottom of the front side of the gear body.

[0008] Furthermore, a guide opening is provided through the fixed base, and a first lead screw is rotatably connected to the right side of the inner wall of the guide opening via a bearing, and a second lead screw is fixedly connected to the left end of the first lead screw.

[0009] Furthermore, the first lead screw and the second lead screw have opposite thread directions. The left end of the second lead screw passes through the guide port and the fixed seat in sequence and extends to the outside of the fixed seat and is fixedly connected to a handle. The second lead screw is movably connected to the fixed seat. The surfaces of the first lead screw and the second lead screw are both threaded with threaded plates.

[0010] Furthermore, both the front and rear sides of the threaded plate are in active contact with and tightly fitted to the inner wall of the guide opening. The side of the threaded plate near the wear-resistant ring passes through the guide opening and extends to the outside of the guide opening. The threaded plate is in active contact with the connecting block. The second limiting block is movably engaged inside the second limiting groove. The second limiting block is fixedly connected to the threaded plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention, through its installation mechanism, allows for easy replacement of the wear ring. Simply reverse the handle to rotate the second and first lead screws. Since the threads of the first and second lead screws are opposite, the two threaded plates move away from each other, pulling the second limiting block out of the second limiting groove. Then, the wear ring is pulled forward, causing the first limiting block to disengage from the first limiting groove and the wear ring to completely disengage from the mounting hole. This allows the wear ring to be removed for replacement without the need for frequent disassembly and reassembly of numerous screws, significantly improving the efficiency of wear ring replacement.

[0013] The engagement of the first limiting block with the first limiting groove, and the engagement of the second limiting block with the second limiting groove, can securely limit the wear ring after it is installed in place, ensuring that the wear ring will not loosen or shift during the operation of the gear body, thus guaranteeing the stability and reliability of the gear operation.

[0014] The entire installation and replacement process can be completed by turning the handle. The operation is simple and easy to understand, requiring no complicated tools, which reduces the labor intensity of operators and improves work efficiency. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the gear body of this utility model;

[0018] Figure 4 This is a bottom view of the structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the wear-resistant ring of this utility model.

[0020] In the diagram: 1. Gear body; 2. Gear teeth; 3. Mounting hole; 4. Wear-resistant ring; 5. Mounting mechanism; 501. First limiting groove; 502. First limiting block; 503. Connecting block; 504. Second limiting groove; 505. Fixed seat; 506. Guide port; 507. First lead screw; 508. Second lead screw; 509. Handle; 510. Threaded plate; 511. Second limiting block. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] Please see Figures 1-5 A novel gear for a speed reducer includes a gear body 1. Multiple gear teeth 2 are fixedly connected at equal intervals around the outer wall of the gear body 1. A mounting hole 3 is opened through the center of the gear body 1. A wear-resistant ring 4 is movably inserted into the inner wall of the mounting hole 3. The wear-resistant ring 4 is made of a special alloy material with high hardness and high wear resistance. Both the front and rear sides of the wear-resistant ring 4 extend to the outside of the mounting hole 3. This structural design facilitates the installation and disassembly of the wear-resistant ring 4. The wear-resistant ring 4 is connected to the gear body 1 through a mounting mechanism 5.

[0024] The mounting mechanism 5 includes a first limiting groove 501, a first limiting block 502, a connecting block 503, a second limiting groove 504, a fixing seat 505, a guide port 506, a first lead screw 507, a second lead screw 508, a handle 509, a threaded plate 510, and a second limiting block 511. Two first limiting grooves 501 are symmetrically opened on the front side of the gear body 1, and the first limiting grooves 501 are interconnected with the mounting holes 3.

[0025] The first limiting groove 501 is internally movable and connected by the first limiting block 502. The first limiting block 502 is fixedly connected to the wear-resistant ring 4. Connecting blocks 503 are movably connected to the front side of the gear body 1 and at the top and bottom of the wear-resistant ring 4.

[0026] The connecting block 503 is fixedly connected to the wear-resistant ring 4. The connecting block 503 has a second limiting groove 504 on both the left and right sides. The top and bottom of the front side of the gear body 1 are fixedly connected to the fixing seat 505.

[0027] A guide opening 506 is provided through the fixed base 505. The right side of the inner wall of the guide opening 506 is rotatably connected to the first lead screw 507 via a bearing. The left end of the first lead screw 507 is fixedly connected to the second lead screw 508.

[0028] The first lead screw 507 and the second lead screw 508 have opposite thread directions. The left end of the second lead screw 508 passes through the guide port 506 and the fixed seat 505 in sequence and extends to the outside of the fixed seat 505 and is fixedly connected to a handle 509. The second lead screw 508 is movably connected to the fixed seat 505. The surfaces of the first lead screw 507 and the second lead screw 508 are both threaded with threaded plates 510.

[0029] Both the front and rear sides of the threaded plate 510 are in active contact with and tightly fitted to the inner wall of the guide port 506. This fitting design can effectively restrict the movement direction of the threaded plate, ensuring that it can only move along the axial direction of the screw within the guide port.

[0030] The threaded plate 510 extends through the guide port 506 and out of the guide port 506 on the side near the wear ring 4. The threaded plate 510 is in movable contact with the connecting block 503. The second limiting block 511 is movably engaged inside the second limiting groove 504. The second limiting block 511 is fixedly connected to the threaded plate 510.

[0031] In practical applications: When the wear ring 4 needs to be replaced, simply turn the handle 509 in the opposite direction to drive the second lead screw 508 and the first lead screw 507 to rotate. Since the threads of the first lead screw 507 and the second lead screw 508 are opposite, the two threaded plates 510 move to the side away from each other, thereby pulling the second limiting block 511 out of the second limiting groove 504. Then, pull the wear ring 4 forward, thereby causing the first limiting block 502 to disengage from the first limiting groove 501 and the wear ring 4 to completely disengage from the mounting hole 3. Thus, the wear ring 4 can be removed for replacement without the need for frequent disassembly and assembly of a large number of screws, which greatly improves the replacement efficiency of the wear ring 4.

[0032] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel gear for a speed reducer, comprising a gear body (1), characterized in that: Multiple gear teeth (2) are fixedly connected at equal intervals around the outer wall of the gear body (1). A mounting hole (3) is opened through the center of the gear body (1). A wear-resistant ring (4) is movably inserted into the inner wall of the mounting hole (3). The front and rear sides of the wear-resistant ring (4) extend to the outside of the mounting hole (3). The wear-resistant ring (4) is connected to the gear body (1) through a mounting mechanism (5). The mounting mechanism (5) includes a first limiting groove (501), a first limiting block (502), a connecting block (503), a second limiting groove (504), a fixing seat (505), a guide port (506), a first lead screw (507), a second lead screw (508), a handle (509), a threaded plate (510), and a second limiting block (511). Two first limiting grooves (501) are symmetrically opened on the front side of the gear body (1). The first limiting grooves (501) are interconnected with the mounting hole (3).

2. A novel gear for a speed reducer according to claim 1, characterized in that: The first limiting groove (501) is internally movable and connected by the first limiting block (502). The first limiting block (502) is fixedly connected to the wear ring (4). The gear body (1) is movably connected to the top and bottom of the wear ring (4) on the front side.

3. A novel gear for a speed reducer according to claim 2, characterized in that: The connecting block (503) is fixedly connected to the wear ring (4). The connecting block (503) has a second limiting groove (504) on both the left and right sides. The top and bottom of the front side of the gear body (1) are fixedly connected to a fixing seat (505).

4. A novel gear for a speed reducer according to claim 3, characterized in that: A guide opening (506) is provided through the fixed base (505). A first lead screw (507) is rotatably connected to the right side of the inner wall of the guide opening (506) via a bearing. A second lead screw (508) is fixedly connected to the left end of the first lead screw (507).

5. A novel gear for a speed reducer according to claim 4, characterized in that: The first lead screw (507) and the second lead screw (508) have opposite thread directions. The left end of the second lead screw (508) passes through the guide port (506) and the fixed seat (505) in sequence and extends to the outside of the fixed seat (505) and is fixedly connected to a handle (509). The second lead screw (508) is movably connected to the fixed seat (505). The surfaces of the first lead screw (507) and the second lead screw (508) are both threaded with threaded plates (510).

6. A novel gear for a speed reducer according to claim 5, characterized in that: The front and rear sides of the threaded plate (510) are in active contact with and tightly fitted to the inner wall of the guide port (506). The side of the threaded plate (510) near the wear ring (4) passes through the guide port (506) and extends to the outside of the guide port (506). The threaded plate (510) is in active contact with the connecting block (503). The second limiting groove (504) is movably engaged with the second limiting block (511). The second limiting block (511) is fixedly connected to the threaded plate (510).

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