Internal tooth gear

Abstract

The utility model provides an internal tooth gear, which relates to the technical field of gears and comprises an outer gear ring and an inner gear ring, a limiting ring is fixedly mounted on the surface of the inner wall of the outer gear ring, a positioning component is arranged on the surface of the top of the limiting ring, a limiting component is arranged on the surface of the top of the inner gear ring, the positioning component comprises two L-shaped grooves, and the two L-shaped grooves are fixedly connected with the limiting ring. The two L-shaped grooves are symmetrically formed in the surface of the top of the limiting ring in a penetrating mode, and two round holes are formed in the surfaces of the inner walls of the upper side and the lower side of each L-shaped groove in a penetrating mode. According to the internal tooth gear, not only can the whole internal tooth ring be detached, but also individual damaged convex teeth can be replaced, and resource waste caused by replacement of the whole internal tooth ring is avoided.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, and in particular to an internal gear. Background Technology

[0002] A wheel is a rotating, circular machine component with cutting teeth, or, in the case of a gear or large gear, inserting teeth. It meshes with another compatible toothed component to transmit and convert torque and speed. Gears can also be informally called gears. Gear assemblies can change the speed, torque, and direction of a power source. Gears of different sizes generate torque variations through their gear ratios, creating mechanical advantages. Gears and gear products are important basic components of mechanical equipment. The main transmission components of most complete sets of mechanical equipment are gear drives, and therefore can be considered simple machines.

[0003] In the prior art, such as the one disclosed in CN220980254U, an internal gear is provided. By setting a limiting structure, it is convenient to install or disassemble the internal gear body and the external gear cylinder. After aligning the positioning blocks on both sides of the internal gear body with the limiting groove, it is placed inside the limiting boss. Pressing down the two limiting blocks at the top causes the springs inside the limiting blocks to deform and generate elastic potential energy. Then, the internal gear body is rotated clockwise along the limiting groove until the four limiting blocks reach the limiting holes respectively. The springs return to their original shape and release the elastic force, causing the ends of the limiting blocks to spring to the outside of the limiting boss, thereby engaging the limiting blocks with the limiting boss.

[0004] However, although the internal gear can be disassembled and repaired as a whole during the use of the aforementioned patent, since the internal gear body and the convex tooth are an integral structure, only the entire internal gear can be replaced. However, when only a few teeth are damaged, replacing the entire internal gear will result in a waste of resources and increase the cost of use. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an internal gear, comprising: an external gear ring and an internal gear ring, wherein a limiting ring is fixedly installed on the inner wall surface of the external gear ring, a positioning component is provided on the top surface of the limiting ring, and a limiting component is provided on the top surface of the internal gear ring, wherein the positioning component comprises two L-shaped grooves, the two L-shaped grooves being symmetrically opened through the top surface of the limiting ring, and two circular holes being opened through the upper and lower inner wall surfaces of the two L-shaped grooves.

[0007] Furthermore, two positioning blocks are symmetrically fixedly installed on the outer wall surface of the internal toothed ring. The two positioning blocks are located inside the two L-shaped grooves. One side surface of the two positioning blocks is in movable contact with one side inner wall surface of the two L-shaped grooves. Two rectangular grooves are opened inside the two positioning blocks.

[0008] Furthermore, a limiting rod is fixedly installed on one side of the inner wall surface of each of the multiple rectangular grooves, and a movable ring is movably fitted on the outer wall surface of each of the multiple limiting rods. A limiting block is fixedly installed on one side of each of the multiple movable rings, and the end of each of the multiple limiting blocks away from the corresponding movable ring movably penetrates the other side of the inner wall surface of the multiple rectangular grooves. The interior of each of the multiple limiting blocks is hollow, and the multiple limiting blocks movably penetrate the interior of multiple circular holes.

[0009] Furthermore, springs are fixedly installed between the other side surface of the plurality of movable rings and the other side inner wall surface of the plurality of rectangular grooves, and the plurality of limiting rods are located inside the plurality of springs.

[0010] Furthermore, the limiting component includes multiple T-slots, which are formed around the top surface of the internal gear ring. T-blocks are movably fitted inside each of the multiple T-slots, and protruding teeth are fixedly installed on one side surface of each of the multiple T-blocks. Multiple threaded holes are formed around the top surface of the internal gear ring.

[0011] Furthermore, each of the multiple T-slots has a limiting plate movably fitted inside it, the bottom surface of the multiple limiting plates movably fits the top surface of the multiple T-blocks, and a positioning ring is fixedly installed on the top surface of the multiple limiting plates.

[0012] Furthermore, the top surface of the positioning ring is threaded with multiple bolts, and the multiple bolts are threadedly inserted into multiple threaded holes.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, when repairing an internal gear and needing to replace the entire internal gear, first press down multiple limit blocks. The movement of the multiple limit blocks causes multiple movable rings to move on the surface of multiple limit rods. The movement of the multiple movable rings will compress multiple springs, thus compressing the multiple springs. When the multiple limit blocks move into the interior of multiple rectangular slots, the internal gear ring is then rotated to move two positioning blocks into the interior of two L-shaped slots. When the two positioning blocks move to the other end of the two L-shaped slots, the internal gear ring can be removed. Then, a new internal gear ring is replaced. Press down the multiple limit blocks again and reset the two positioning blocks. At this time, release the multiple limit blocks. The rebound force of the multiple springs resets the multiple positioning blocks, so that the multiple positioning blocks are re-inserted into the interior of multiple round holes, thereby fixing the internal gear ring and completing the purpose of replacing the internal gear ring.

[0015] When it is necessary to replace a damaged tooth, first use a tool to unscrew multiple bolts. After unscrewing multiple bolts, the positioning ring loses its limit. Then, remove the limiting ring. The movement of the limiting ring drives multiple limiting plates to move, thereby moving multiple limiting plates out of the inside of multiple T-slots. Then, remove the damaged tooth, align the T-blocks on the surface of the new tooth with the T-slots and insert them. Move the limiting ring to insert multiple limiting plates on its bottom surface with multiple T-blocks. Finally, screw multiple bolts back into the corresponding threaded holes to complete the replacement of the tooth.

[0016] With the cooperation of the above structure, the internal gear can not only disassemble the entire internal gear ring, but also replace individual damaged convex teeth, avoiding the need to replace the entire internal gear ring and thus avoiding resource waste. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of an internal gear provided by this utility model;

[0018] Figure 2 A schematic diagram of an external gear structure for an internal gear provided by this utility model;

[0019] Figure 3 A schematic diagram of the structure of an internal gear positioning assembly provided by this utility model;

[0020] Figure 4 A cross-sectional view of an internal gear positioning block provided by this utility model;

[0021] Figure 5 An internal gear provided by this utility model Figure 3 A schematic diagram of the split structure;

[0022] Figure 6 A schematic diagram of the structure of an internal gear limiting component provided by this utility model;

[0023] Figure 7 An internal gear provided by this utility model Figure 5 A schematic diagram of the split structure.

[0024] Legend:

[0025] 1. External toothed ring; 2. Limiting ring; 3. Internal toothed ring; 4. Positioning assembly; 401. L-shaped groove; 402. Round hole; 403. Positioning block; 404. Rectangular groove; 405. Limiting rod; 406. Movable ring; 407. Spring; 408. Limiting block; 5. Limiting assembly; 501. T-shaped groove; 502. T-shaped block; 503. Raised tooth; 504. Threaded hole; 505. Limiting plate; 506. Positioning ring; 507. Bolt. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-7 This utility model provides a technical solution: an internal gear, including: an external gear ring 1 and an internal gear ring 3. A limiting ring 2 is fixedly installed on the inner wall surface of the external gear ring 1. A positioning component 4 is provided on the top surface of the limiting ring 2. A limiting component 5 is provided on the top surface of the internal gear ring 3. The positioning component 4 includes two L-shaped grooves 401. The two L-shaped grooves 401 are symmetrically opened through the top surface of the limiting ring 2. Two round holes 402 are opened through the inner wall surfaces of the upper and lower sides of the two L-shaped grooves 401.

[0028] Specifically: the two L-shaped slots 401 serve to install the two positioning blocks 403.

[0029] In one embodiment, two positioning blocks 403 are symmetrically fixedly installed on the outer wall surface of the internal toothed ring 3. The two positioning blocks 403 are located inside the two L-shaped grooves 401 respectively. One side surface of the two positioning blocks 403 is in movable contact with one side inner wall surface of the two L-shaped grooves 401. Two rectangular grooves 404 are opened inside the two positioning blocks 403.

[0030] Specifically, such as Figure 3-4 As shown: the outer wall surface of one side of the two positioning blocks 403 corresponds to and is in contact with the inner wall surface of one side of the two L-shaped grooves 401, which ensures that the inner toothed ring 3 will not wobble from side to side.

[0031] In one embodiment, a limiting rod 405 is fixedly installed on one inner wall surface of a plurality of rectangular grooves 404, and a movable ring 406 is movably fitted on the outer wall surface of a plurality of limiting rods 405. A limiting block 408 is fixedly installed on one side surface of a plurality of movable rings 406. One end of a plurality of limiting blocks 408 away from the corresponding movable ring 406 movably penetrates the other inner wall surface of a plurality of rectangular grooves 404. The interior of a plurality of limiting blocks 408 is hollow, and the plurality of limiting blocks 408 movably penetrates the interior of a plurality of circular holes 402.

[0032] Specifically, such as Figure 1 and 4 As shown: the movable ring 406 prevents the limiting block 408 from dislodging from the rectangular groove 404. The limiting block 408, together with the round hole 402, restricts the two positioning blocks 403 inside the two L-shaped grooves 401.

[0033] In one embodiment, springs 407 are fixedly installed between the other side surface of the plurality of movable rings 406 and the other side inner wall surface of the plurality of rectangular grooves 404, and the plurality of limiting rods 405 are located inside the plurality of springs 407.

[0034] Specifically, such as Figure 4 As shown: Spring 407 serves to limit the position of movable ring 406 on the surface of limit rod 405.

[0035] In one embodiment, the limiting component 5 includes a plurality of T-slots 501, which are formed around the top surface of the internal toothed ring 3. T-blocks 502 are movably fitted inside the plurality of T-slots 501. A tooth 503 is fixedly installed on one side surface of the plurality of T-blocks 502. A plurality of threaded holes 504 are formed around the top surface of the internal toothed ring 3.

[0036] Specifically, such as Figure 5 and 7 As shown: The multiple outer wall surfaces of the T-block 502 correspond to the multiple inner wall surfaces of the T-groove 501, which plays a role in ensuring the stable installation of the protruding tooth 503.

[0037] In one embodiment, a limiting plate 505 is movably fitted inside the multiple T-slots 501, the bottom surface of the multiple limiting plates 505 corresponds to the top surface of the multiple T-blocks 502, and a positioning ring 506 is fixedly installed on the top surface of the multiple limiting plates 505.

[0038] Specifically, such as Figure 3 and 6 As shown: the bottom surface of the limiting plate 505 is in contact with the top surface of the T-shaped plate, which prevents the T-shaped block 502 from shaking up and down.

[0039] In one embodiment, the top surface of the positioning ring 506 is threaded with a plurality of bolts 507, which are threadedly inserted into a plurality of threaded holes 504.

[0040] Specifically, such as Figure 5-6 As shown: Bolt 507 and threaded hole 504 serve to constrain the positioning ring 506 to the top surface of the internal toothed ring 3.

[0041] Working principle:

[0042] When repairing an internal gear, if the entire internal gear needs to be replaced, first press down multiple limit blocks 408. The movement of multiple limit blocks 408 causes multiple movable rings 406 to move on the surface of multiple limit rods 405. The movement of multiple movable rings 406 will compress multiple springs 407, thus compressing the multiple springs 407. When multiple limit blocks 408 move into the interior of multiple rectangular slots 404, then rotate the internal gear ring 3 to move two positioning blocks 403 into the interior of two L-shaped slots 401. When the two positioning blocks 403 move to the other end of the two L-shaped slots 401, the internal gear ring 3 can be removed. Then replace with a new internal gear ring 3. Press down multiple limit blocks 408 again and reset the two positioning blocks 403. At this time, release multiple limit blocks 408. Use the rebound force of multiple springs 407 to reset multiple positioning blocks 403, so that multiple positioning blocks 403 are re-inserted into the interior of multiple round holes 402, thereby fixing the internal gear ring 3 and completing the purpose of replacing the internal gear ring 3.

[0043] When it is necessary to replace the damaged tooth 503, first use a tool to unscrew the multiple bolts 507. After the multiple bolts 507 are unscrewed, the positioning ring 506 loses its limit. At this time, the limit ring 2 is taken out. The movement of the limit ring 2 drives the multiple limit plates 505 to move, thereby causing the multiple limit plates 505 to move out of the multiple T-slots 501. Then, the damaged tooth 503 is taken out. The T-blocks 502 on the surface of the new tooth 503 are aligned with the T-slots 501 and inserted. The limit ring 2 is moved to insert the multiple limit plates 505 on its bottom surface into the multiple T-blocks 502. Finally, the multiple bolts 507 are screwed back into the corresponding threaded holes 504, thereby completing the purpose of replacing the tooth 503.

[0044] With the cooperation of the above structure, the internal gear can not only disassemble the entire internal gear ring 3, but also replace individual damaged convex teeth 503, avoiding the need to replace the entire internal gear ring 3 and thus avoiding resource waste.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An internal gear, characterized in that, include: An external toothed ring (1) and an internal toothed ring (3) are provided. A limiting ring (2) is fixedly installed on the inner wall surface of the external toothed ring (1). A positioning component (4) is provided on the top surface of the limiting ring (2). A limiting component (5) is provided on the top surface of the internal toothed ring (3). The positioning component (4) includes two L-shaped grooves (401). The two L-shaped grooves (401) are symmetrically opened through the top surface of the limiting ring (2). Two round holes (402) are opened through the inner wall surfaces of the upper and lower sides of the two L-shaped grooves (401). The limiting component (5) includes a plurality of T-slots (501), which surround the top surface of the inner toothed ring (3). T-blocks (502) are movably fitted inside the plurality of T-slots (501), and protruding teeth (503) are fixedly installed on one side surface of the plurality of T-blocks (502).

2. An internal gear according to claim 1, characterized in that: Two positioning blocks (403) are symmetrically fixedly installed on the outer wall surface of the internal toothed ring (3). The two positioning blocks (403) are located inside the two L-shaped grooves (401). One side surface of the two positioning blocks (403) is in movable contact with one side inner wall surface of the two L-shaped grooves (401). Two rectangular grooves (404) are opened inside the two positioning blocks (403).

3. An internal gear according to claim 2, characterized in that: Each of the rectangular grooves (404) has a limiting rod (405) fixedly installed on one inner wall surface. Each of the limiting rods (405) has a movable ring (406) movably fitted on the outer wall surface. Each of the movable rings (406) has a limiting block (408) fixedly installed on one side surface. Each of the limiting blocks (408) has one end away from the corresponding movable ring (406) that movably passes through the other inner wall surface of the rectangular grooves (404). Each of the limiting blocks (408) is hollow inside. Each of the limiting blocks (408) movably passes through the inside of the multiple circular holes (402).

4. An internal gear according to claim 3, characterized in that: A spring (407) is fixedly installed between the other side surface of the plurality of movable rings (406) and the other side inner wall surface of the plurality of rectangular grooves (404), and the plurality of limiting rods (405) are located inside the plurality of springs (407).

5. An internal gear according to claim 1, characterized in that: The top surface of the internal toothed ring (3) is provided with a plurality of threaded holes (504).

6. An internal gear according to claim 5, characterized in that: Each of the multiple T-slots (501) has a limiting plate (505) movably fitted inside it. The bottom surface of the multiple limiting plates (505) corresponds to the top surface of the multiple T-blocks (502). A positioning ring (506) is fixedly installed on the top surface of the multiple limiting plates (505).

7. An internal gear according to claim 6, characterized in that: The top surface of the positioning ring (506) is threaded with a plurality of bolts (507), and the plurality of bolts (507) are threadedly inserted into a plurality of threaded holes (504).

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