Porous universal transmission gear

Abstract

The utility model discloses a porous universal transmission gear which comprises a hub, spokes and a gear ring, a mounting hole is formed in the center of the hub in a penetrating mode, a connecting shaft piece is fixedly connected in the mounting hole, one end of the connecting shaft piece is fixedly connected with a linkage gear, a plurality of spokes are evenly distributed on the periphery of the hub towards the gear ring in a radial mode, and the spokes are fixedly connected with the linkage gear. A plurality of first-class through holes are distributed in each spoke in the radial direction, the outer ends of the spokes are fixedly connected with the inner wall of the gear ring, a plurality of gear teeth are fixedly connected to the periphery of the gear ring, and a plurality of second-class through holes are evenly formed in the end face of the gear ring at intervals. The utility model aims to provide a transmission gear structure which is high in universality, light in weight, strong in expansibility and convenient to install and maintain.

Description

Technical Field

[0001] This utility model relates to the field of gear structure technology, specifically a multi-hole general-purpose transmission gear. Background Technology

[0002] As a core component of mechanical transmission systems, transmission gears are widely used in industrial equipment, robotics, aerospace, and automotive fields. Their function is to transmit power and motion through tooth meshing, making them a key fundamental element for realizing the conversion and distribution of mechanical energy. With the diversified development of industrial technology, the performance requirements of transmission gears in different application scenarios are becoming increasingly differentiated. For example, some scenarios require adaptation to multiple types of drive shafts (such as square shafts, keyed shafts, splined shafts, etc.) to achieve flexible connections; some lightweight scenarios (such as aerospace equipment and precision robot joints) impose strict requirements on gear weight; and some intelligent transmission systems require the integration of sensors, seals, or additional transmission modules into the gear structure to expand functionality.

[0003] However, the transmission gears in the existing technology still have the following limitations:

[0004] First, it lacks versatility. The coupling structure of traditional transmission gears is mostly a fixed design (such as only suitable for keyed or splined connections). When it is necessary to switch the type of transmission shaft (such as changing from a keyed shaft to a square shaft), it is often necessary to re-machine or replace the entire gear, resulting in high maintenance costs, low adaptation efficiency, and difficulty in meeting the needs of rapid switching between multiple types of transmission shafts.

[0005] Secondly, lightweight design is limited. The spokes of traditional gears are mostly solid structures. Although this can ensure strength, in scenarios where weight reduction is required (such as high-speed rotating equipment or mobile robots), solid spokes will increase the overall weight, thereby affecting the energy consumption, response speed and dynamic performance of the equipment.

[0006] Third, its scalability is limited. The end face of the gear ring of traditional gears usually only has simple mounting holes, and its function is relatively simple. It is difficult to flexibly integrate additional components such as end caps, seals, and sensors, and it cannot meet the functional expansion requirements of intelligent and modular transmission systems.

[0007] Fourth, installation and maintenance are inconvenient. The couplings of traditional gears are mostly one-piece structures. The connection methods with the hub (such as interference fit or bolt fastening) require special tools for disassembly and assembly, and may damage the hub or couplings, resulting in low maintenance efficiency and high operation complexity.

[0008] In view of the shortcomings of the existing technology, there is an urgent need to design a transmission gear structure that combines high versatility, lightweight, strong scalability and convenient installation and maintenance to meet the needs of diverse scenarios. Utility Model Content

[0009] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a transmission gear structure that combines high versatility, lightweight, strong expandability and convenient installation and maintenance.

[0010] The technical solution adopted by this utility model to achieve the above-mentioned objectives is as follows: a multi-hole universal transmission gear, including a hub, spokes, and a gear ring. A mounting hole is passed through the center of the hub, and a connecting shaft is fixedly connected within the mounting hole. The connecting shaft is used to fix and connect a transmission shaft, enabling the rotation of the overall gear structure through the transmission shaft. A linkage gear is fixedly connected to one end of the connecting shaft for synchronous input or output of power. The tooth surface diameter and the number of teeth on the outer circumference of the linkage gear can be customized according to actual needs. The outer circumference of the hub gear ring has several spokes evenly distributed radially, used to connect the hub and the gear ring. The thickness of a single spoke is 2-8mm, and its length is 0.5-1.5 times the radius of the hub. Each spoke has several first-type through holes distributed radially to reduce the weight of the overall gear. The outer ends of the spokes are fixedly connected to the inner wall of the gear ring. Several teeth are fixedly connected to the outer circumference of the gear ring. The end face of the gear ring has several evenly spaced second-type through holes, which can be used to fix end caps, seals, or as additional installation interfaces to enhance structural expandability.

[0011] In the above technical solution, the coupling component includes a coupling sleeve, a clamping ring, a groove ring, and a limiting ring. The coupling sleeve is slidably connected to a mounting hole in the middle of the hub. One end of the coupling sleeve protrudes from the mounting hole and is fixedly connected to a linkage gear. The linkage gear has several limiting holes. A fixing ring is fixedly connected to the hub on one side of the linkage gear. Several corresponding limiting pins are fixedly connected to the fixing ring. The limiting pins are respectively inserted into the limiting holes. The other end of the coupling sleeve protrudes from the mounting hole and is clamped. The device includes a clamping ring, with a groove ring fixedly connected to one end of the clamping ring. The coupling sleeve has a groove, and the groove ring is fitted into the groove. A limit ring is fixedly connected to the other end of the clamping ring. A limit groove is formed on the end face of the coupling sleeve, and the limit ring is fitted into the limit groove. Two sets of symmetrical positioning blocks are fixedly connected inside the clamping ring between the limit ring and the groove ring. A corresponding positioning groove is formed on the coupling sleeve on one side of the groove, and the positioning blocks are fitted into the positioning grooves respectively.

[0012] In the above technical solution, the end face of the clamp ring is provided with several evenly spaced through holes, and the side of the wheel hub is provided with several corresponding threaded holes. One end of the bolt passes through the through hole and is threaded into the threaded hole.

[0013] In the above technical solution, the clamp ring includes two sets of symmetrical semi-clamp rings. One end of the semi-clamp ring is fixedly connected to a positioning pin, and the other end of the semi-clamp ring is provided with a positioning hole. The positioning pins and positioning holes on the two sets of semi-clamp rings are inserted and connected to each other. The groove ring and the limiting ring are both formed by combining two sets of semi-circular rings, and the two sets of semi-circular rings are respectively fixedly connected inside the semi-clamp ring.

[0014] In the above technical solution, a connecting hole is provided in the middle of both the connecting sleeve and the linkage gear. The connecting hole is one of a square hole, a pin hole, a key hole, or a spline hole.

[0015] The beneficial effects of this utility model are:

[0016] 1. High versatility: The coupling sleeve supports various types of coupling holes such as square holes, pin holes, key holes, and spline holes. It can be directly adapted to different transmission shafts such as square shaft direct connection, key connection, and pin connection. It can achieve quick switching between multiple types of transmission shafts without replacing the gear body, which significantly improves the applicability of gears in different transmission scenarios.

[0017] 2. Significant weight reduction effect: The spokes adopt a radially evenly distributed structure, combined with the optimized design of thickness (2-8mm) and length (0.5-1.5 times the hub radius), and the first type of through hole is set in the radial direction of a single spoke, which not only ensures the torque transmission strength between the hub and the gear ring, but also effectively reduces the overall gear weight.

[0018] 3. Flexible expandability: Several evenly spaced second-type through holes on the end face of the gear ring can be used as mounting interfaces for fixed end caps, seals or additional transmission modules, supporting the rapid integration of functional modules and meeting the diverse expansion needs of intelligent and modular transmission systems.

[0019] 4. Convenient installation and maintenance: The coupling adopts a split clamp ring structure. The radial clamping and axial limiting of the coupling sleeve can be completed by splicing the positioning pins / holes of the half clamp ring and tightening the bolts. There is no need to disassemble the hub or gear ring, which greatly simplifies the disassembly and assembly process of the coupling and reduces the complexity and time cost of maintenance operations. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a front-view disassembly diagram of the present invention;

[0022] Figure 3 This is a rear-view disassembly diagram of the present invention;

[0023] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0024] In the diagram: 1. Hub, 2. Spokes, 3. Gear ring, 4. Mounting hole, 5. Coupling, 6. Linkage gear, 7. Type I through hole, 8. Gear tooth, 9. Type II through hole, 101. Coupling sleeve, 102. Clamp ring, 103. Slotted ring, 104. Limiting ring, 105. Limiting hole, 106. Limiting pin, 108. Groove, 109. Limiting slot, 110. Positioning block, 111. Positioning slot, 112. Through hole, 113. Threaded hole, 114. Bolt, 115. Positioning pin, 116. Positioning hole, 117. Coupling hole, 118. Fixing ring. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Please see Figure 1-4 A multi-hole universal transmission gear includes a hub 1, spokes 2, and a gear ring 3. A mounting hole 4 runs through the center of the hub 1, and a coupling 5 is fixedly connected within the mounting hole 4. The coupling 5 is used to fix and connect a transmission shaft, enabling rotation of the entire gear structure via the transmission shaft. A linkage gear 6 is fixedly connected to one end of the coupling 5 for synchronous input or output of power. The tooth surface diameter and the number of teeth 8 on the outer circumference of the linkage gear 6 can be customized according to actual needs. Several radially evenly distributed teeth 8 are present on the outer circumference of the gear ring 3 of the hub 1. Spoke 2 is used to connect hub 1 and gear ring 3. The thickness of a single spoke 2 is 2-8mm, and the length is 0.5-1.5 times the radius of hub 1. Each spoke 2 has several first-type through holes 7 distributed radially to reduce the weight of the overall gear. The outer ends of spoke 2 are fixedly connected to the inner wall of gear ring 3. Several teeth 8 are fixedly connected to the outer circumference of gear ring 3. Several evenly spaced second-type through holes 9 are opened on the end face of gear ring 3, which can be used to fix end caps, seals or as additional installation interfaces to enhance structural expandability.

[0027] In the above technical solution, the coupling component 5 includes a coupling sleeve 101, a clamping ring 102, a groove ring 103, and a limiting ring 104. The coupling sleeve 101 is slidably connected to the mounting hole 4 in the middle of the hub 1. One end of the coupling sleeve 101 passes through the mounting hole 4 and is fixedly connected to the linkage gear 6 (the coupling sleeve 101 and the linkage gear 6 are an integral structure). The linkage gear 6 has several limiting holes 105. A fixing ring 118 is fixedly connected to the hub 1 on one side of the linkage gear 6. The fixing ring 118 is fixedly connected to... Several corresponding limiting pins 106 are connected, and the limiting pins 106 are respectively inserted into the limiting holes 105. The other end of the coupling sleeve 101 passes through the mounting hole 4 and is clamped to a clamping ring 102. A retaining ring 103 is fixedly connected to one end of the clamping ring 102. A groove 108 is opened on the coupling sleeve 101, and the retaining ring 103 is fitted into the groove 108. A limiting ring 104 is fixedly connected to the other end of the clamping ring 102. A limiting groove 109 is opened on the end face of the coupling sleeve 101. The limiting ring 104 is fitted into the limiting groove 109. Two sets of symmetrical positioning blocks 110 are fixedly connected in the clamping ring 102 between the limiting ring 104 and the clamping ring 103. The coupling sleeve 101 on one side of the groove 108 is provided with a corresponding positioning groove 111, and the positioning blocks 110 are respectively fitted into the positioning groove 111. The end face of the clamping ring 102 is provided with a number of evenly spaced through holes 112, and the side of the hub 1 is provided with a number of corresponding threaded holes 113. One end of the bolt 114 passes through the through holes. The threaded connection of hole 112 is made into threaded hole 113; the clamping ring 102 includes two sets of symmetrical semi-clamping rings, one end of which is fixedly connected to a positioning pin 115, and the other end of which is provided with a positioning hole 116. The positioning pins 115 and positioning holes 116 on the two sets of semi-clamping rings are interlocked. The groove ring 103 and the limiting ring 104 are both formed by combining two sets of semi-circular rings, and the two sets of combined semi-circular rings are respectively fixedly connected inside the semi-clamping rings; in this utility model, the installation method of the coupling 5 is as follows:

[0028] First, insert the coupling sleeve 101 into the mounting hole 4 in the middle of the hub 1, with the linkage gear 6 fixed at one end of the coupling sleeve in contact with one side of the hub 1. The limiting pins 106 on the same side of the hub 1 are respectively inserted into the limiting holes 105 connected to the linkage gear 6. At the other end of the coupling sleeve 101, take two sets of half-hoops and align the positioning pin 115 (protruding end) of one set of half-hoops with the positioning hole 116 (recessed end) of the other set of half-hoops. Gently push horizontally to fully insert the positioning pin 115 into the positioning hole 116, initially closing the half-hoops, so that the two sets of half-hoops combine to form a clamping ring 102. This operation is performed on the coupling sleeve 101, and the retaining ring 103 is embedded in the coupling. Within the groove 108 of sleeve 101, ensure that the retaining ring 103 fits against the bottom of the groove 108, thereby ensuring the axial fixation of the coupling sleeve 101 within the hub 1. Simultaneously, embed the limiting ring 104 into the limiting groove 109 of the coupling sleeve 101, ensuring that the limiting ring 104 fits against the bottom of the limiting groove 109 (Note: During the mutual closing of the half-hoops, the positioning block 110 and the positioning groove 111 must correspond to each other). After the retaining ring 102 is installed on the coupling sleeve 101, ensure that the retaining ring 102 and the coupling sleeve 101 do not rotate relative to each other in the circumferential direction through the positioning block 110 and the positioning groove 111. Finally, fix the retaining ring 102 to one side of the hub 1 with bolts 114.

[0029] In the above technical solution, the coupling sleeve 101 and the linkage gear 6 are both provided with a coupling hole 117 in the middle. The coupling hole 117 is one of a square hole, a shaft pin hole, a flat key hole, or a spline hole. It is used to be compatible with different transmission shaft connection methods such as direct connection of square shaft, key connection, and pin connection, so as to improve versatility. In use, different transmission shafts can be connected by replacing the coupling part 5.

[0030] 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.

[0031] 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 multi-hole universal transmission gear, comprising a hub (1), spokes (2), and a gear ring (3), characterized in that: The hub (1) has a through hole (4) in the center. A coupling (5) is fixedly connected in the mounting hole (4). A linkage gear (6) is fixedly connected to one end of the coupling (5). The outer circumferential gear ring (3) of the hub (1) has a number of spokes (2) evenly distributed radially. Each spoke (2) has a number of first-type through holes (7) distributed radially. The outer ends of the spokes (2) are fixedly connected to the inner wall of the gear ring (3). A number of gear teeth (8) are fixedly connected to the outer circumference of the gear ring (3). The end face of the gear ring (3) has a number of evenly spaced second-type through holes (9).

2. The multi-hole universal transmission gear according to claim 1, characterized in that: The coupling (5) includes a coupling sleeve (101), a clamping ring (102), a retaining ring (103), and a limiting ring (104). The coupling sleeve (101) is slidably connected to the mounting hole (4) in the middle of the hub (1). One end of the coupling sleeve (101) passes through the mounting hole (4) and is fixedly connected to the linkage gear (6). The linkage gear (6) has several limiting holes (105). A fixing ring (118) is fixedly connected to the hub (1) on one side of the linkage gear (6). Several corresponding limiting pins (106) are fixedly connected to the fixing ring (118). The limiting pins (106) are respectively inserted into the limiting holes (105). The other end of the coupling sleeve (101) passes through the mounting hole (4) and is clamped to the clamping ring (102). A retaining ring (103) is fixedly connected to one end of the retaining ring (102). A groove (108) is provided on the connecting sleeve (101). The retaining ring (103) is fitted into the groove (108). A limiting ring (104) is fixedly connected to the other end of the retaining ring (102). A limiting groove (109) is provided on the end face of the connecting sleeve (101). The limiting ring (104) is fitted into the limiting groove (109). Two sets of symmetrical positioning blocks (110) are fixedly connected in the retaining ring (102) between the limiting ring (104) and the retaining ring (103). A corresponding positioning groove (111) is provided on the connecting sleeve (101) on one side of the groove (108). The positioning blocks (110) are respectively fitted into the positioning grooves (111).

3. The multi-hole universal transmission gear according to claim 2, characterized in that: The end face of the clamp ring (102) is provided with several evenly spaced through holes (112), and the hub (1) is provided with several corresponding threaded holes (113) on one side. One end of the bolt (114) passes through the through hole (112) and is threaded into the threaded hole (113).

4. A multi-hole universal transmission gear according to claim 3, characterized in that: The clamp ring (102) includes two sets of symmetrical half-clamp rings. One end of the half-clamp ring is fixedly connected to a positioning pin (115), and the other end of the half-clamp ring is provided with a positioning hole (116). The positioning pin (115) and the positioning hole (116) on the two sets of half-clamp rings are inserted and connected to each other.

5. A multi-hole universal transmission gear according to claim 4, characterized in that: Both the coupling sleeve (101) and the linkage gear (6) have a coupling hole (117) in the middle. The coupling hole (117) is one of a square hole, a pin hole, a key hole, or a spline hole.

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