Quick assembly positioning pin structure of transmission gear

Abstract

The utility model relates to mechanical transmission equipment technical field discloses transmission gear quick assembly positioning pin structure, including bottom plate, rotating seat and power gear, and the rotating groove is established in bottom plate top, and the rotating seat is rotatably connected in rotating groove inner wall, and the positioning slot is established in power gear outer wall, and the positioning column is fixedly connected in rotating seat top, and the sliding slot is established in the both sides of positioning column and is connected with sliding shell, and the elastic support column is equipped between sliding slot inner wall and sliding shell, and sliding shell is locked power gear by spring buckle and is inserted into positioning slot, and the moving slot is established in the top of positioning column and is connected with moving plate, and moving plate is connected with sliding shell for driving sliding shell to separate from positioning slot to unlock, and the inclined air hole is established in power gear inner wall. The utility model discloses that the spring buckle cooperation realizes gear tool -free quick assembly and dismounting, and solves the heat dissipation problem by using the airflow circulation structure, improves equipment maintenance efficiency and prolongs the life.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission equipment technology, and in particular to a quick assembly positioning pin structure for transmission gears. Background Technology

[0002] As a power transmission component in mechanical equipment, transmission gears need to be installed on specific rotating seats or shafts to realize power transmission. In the existing mechanical assembly process, the connection between transmission gears and basic components is achieved by bolt fastening, key connection or interference fit. Although these traditional connection methods can ensure the stability of the transmission gear, they require the use of professional auxiliary tools such as wrenches and screwdrivers to complete the operation during the assembly process.

[0003] When transmission gears are located in narrow or complex mechanical interior spaces, it is difficult to tighten bolts or align keyways using auxiliary tools, resulting in a time-consuming and labor-intensive assembly process. Especially when transmission gears are worn or damaged and require emergency replacement and maintenance, the cumbersome disassembly and reinstallation steps consume a lot of downtime. Existing connection structures lack a convenient design that allows for quick plugging and unplugging and self-locking without the aid of tools, which seriously affects the maintenance efficiency and production continuity of mechanical equipment.

[0004] Therefore, this utility model proposes a quick-assembly positioning pin structure for transmission gears to address the shortcomings of existing technologies. Utility Model Content

[0005] In view of the problems in the prior art, the assembly of transmission gears often requires special auxiliary tools and the connection process is cumbersome, resulting in long equipment maintenance time and low assembly efficiency. The present invention aims to provide a transmission gear quick assembly positioning pin structure with improved structure that can effectively solve the above problems.

[0006] This utility model provides a quick-assembly positioning pin structure for transmission gears, comprising: a base plate, a rotating seat, and a drive gear. The top of the base plate has a rotating groove, the rotating seat is rotatably connected to the inner wall of the rotating groove, and the outer wall of the drive gear has a positioning groove. The quick-assembly positioning pin structure for transmission gears also includes an assembly mechanism. The assembly mechanism includes a positioning post fixedly connected to the top of the rotating seat. Sliding grooves are formed on both the left and right side walls of the positioning post. A sliding shell is slidably connected to the inner wall of the sliding groove. An elastic support post is fixedly connected between the inner wall of the sliding groove and the inner wall of the sliding shell. The sliding shell is used for the elastic support post... Under the elastic force of the support column, it moves towards the opening of the sliding groove and gets stuck inside the positioning groove to prevent the power gear from disengaging. The top left and right sides of the positioning column are provided with moving grooves, which are connected to the inside of the sliding groove. A moving plate is slidably connected to the inner wall of the moving groove. The bottom end of the moving plate is fixedly connected to the top end of the sliding shell. The moving plate is used to drive the sliding shell to move in the direction where the two moving plates are adjacent under the action of external force, so as to overcome the elastic force of the elastic support column and make the sliding shell disengage from the positioning groove, thereby releasing the connection between the rotating seat and the power gear.

[0007] Preferably, a folding protective plate is fixedly connected to the inner wall of the movable groove. The folding protective plate covers the internal space of the movable groove. The folding protective plate can extend and retract as the movable plate slides. The folding protective plate is used to prevent external dust and impurities from entering the movable groove and the connected sliding groove.

[0008] Preferably, the quick assembly positioning pin structure of the transmission gear also includes a heat dissipation mechanism, which includes an oblique air guide hole opened on the inner wall of the power gear. The oblique air guide hole is designed to obliquely penetrate the power gear and is used to form an airflow channel.

[0009] Preferably, the heat dissipation mechanism further includes a flow guide shell fixedly connected to the top of the power gear and located on the side of the oblique air guide hole. The flow guide shell is streamlined and is used to guide airflow to the oblique air guide hole during the rotation of the power gear.

[0010] Preferably, the inner wall of the rotating seat is provided with a spiral air guide groove. When the power gear is fixed to the top of the rotating seat, the bottom end of the inclined air guide hole is connected to the top end of the spiral air guide groove, so that the outside air circulates in the inclined air guide hole and the spiral air guide groove.

[0011] Preferably, a lubrication groove is provided in the lower middle part of the outer wall of the rotating seat, the lubrication groove surrounds the outer periphery of the rotating seat, and the lubrication groove is used to contain lubricating oil to reduce friction.

[0012] Preferably, a mounting groove is provided in the upper middle part of the outer wall of the rotating seat, and an elastic sealing ring is fixedly connected to the inner wall of the mounting groove. The outer wall of the elastic sealing ring is tightly fitted with the inner wall of the power gear, and the elastic sealing ring is used to prevent the lubricating oil in the lubrication groove from overflowing.

[0013] Preferably, the positioning groove is a T-shaped groove, and the shape of the outer end of the sliding shell is adapted to the shape of the protruding part inside the positioning groove. When the sliding shell is engaged in the positioning groove, it restricts the power gear from disengaging from the rotating seat.

[0014] This utility model has the following beneficial effects: 1. This utility model, by setting a positioning column with an elastic support column and a sliding shell, and cooperating with the positioning groove on the inner wall of the power gear to form an automatic snap-fit ​​structure, and by utilizing the linkage control of the moving plate and the sliding shell, solves the problems of existing transmission gear assembly requiring external tools, cumbersome operation and difficult maintenance and disassembly. It achieves the goal of quickly completing the rigid connection and positioning of gears without additional tools, greatly shortening equipment downtime for maintenance and improving assembly efficiency.

[0015] 2. This utility model solves the problem of increased internal temperature and accelerated wear caused by frictional heat generation when the gear rotates at high speed by constructing a circulating heat dissipation channel composed of a guide shell, oblique air guide holes and spiral air guide grooves between the power gear and the rotating seat. It achieves the effect of actively removing the heat accumulated in the rotating parts by utilizing the airflow generated by the rotation, effectively reducing the operating temperature of the equipment, and thus extending the service life of the transmission components.

[0016] 3. This utility model solves the problem of high friction coefficient and lubrication medium overflow leading to failure of the transmission structure during long-term operation by setting a lubrication groove and a matching elastic sealing ring on the outer wall of the rotating seat. It achieves the effect of ensuring continuous lubrication of the rotating contact surface to reduce mechanical wear, while effectively preventing lubricating oil leakage and ensuring long-term stable operation of the device. Attached Figure Description

[0017] Figure 1 A perspective view of the quick assembly positioning pin structure for the transmission gear proposed in this utility model; Figure 2 This is a cross-sectional view of the base plate of the transmission gear quick assembly positioning pin structure proposed in this utility model; Figure 3 This is a schematic diagram of the base plate of the quick assembly positioning pin structure for transmission gears proposed in this utility model. Figure 4 This is a cross-sectional view of the rotating seat of the transmission gear quick assembly positioning pin structure proposed in this utility model. Figure 5 This is a cross-sectional view of the power gear of the transmission gear quick assembly positioning pin structure proposed in this utility model.

[0018] Legend: 1. Base plate; 2. Power gear; 3. Assembly mechanism; 301. Rotating groove; 302. Rotating seat; 303. Positioning column; 304. Positioning groove; 305. Sliding groove; 306. Sliding shell; 307. Elastic support column; 308. Moving groove; 309. Moving plate; 310. Folding protective plate; 4. Heat dissipation mechanism; 401. Air guide shell; 402. Angled air guide hole; 403. Spiral air guide groove; 404. Lubrication groove; 405. Installation groove; 406. Elastic sealing ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Example: Please refer to Figures 1 to 5 This utility model provides a quick assembly positioning pin structure for transmission gears, which aims to solve the structural defects of existing transmission gears that rely on external tools and are cumbersome to operate during assembly, and that the lack of heat dissipation and lubrication structure when the gears are running at high speeds leads to severe equipment wear and long maintenance downtime.

[0021] Please refer to Figure 1 , Figure 2 and Figure 3The quick-assembly positioning pin structure for the transmission gear includes a base plate 1, a rotating seat 302, and a drive gear 2. The base plate 1 serves as the mounting base for the entire device, providing a stable support surface. A rotating groove 301 is formed on the top of the base plate 1, and the rotating seat 302 is rotatably connected to the inner wall of the rotating groove 301. The rotating seat 302 rotates circumferentially within the rotating groove 301 via bearings or direct engagement, thereby driving the subsequent installed components to rotate. The drive gear 2, as the main power transmission component, is positioned above the rotating seat 302. A positioning groove 304 is formed on the outer wall of the drive gear 2. The positioning groove 304 is shaped as follows: Designated as a T-slot, the positioning groove 304 is used to cooperate with the subsequent locking components to achieve radial and axial positioning of the power gear 2. The quick assembly positioning pin structure of the transmission gear also includes an assembly mechanism 3. The assembly mechanism 3 includes a positioning post 303 fixedly connected to the top of the rotating seat 302. The positioning post 303 extends vertically upward. The outer contour shape of the positioning post 303 is adapted to the internal space shape of the positioning groove 304, so that the positioning post 303 can smoothly slide into the positioning groove 304. The initial cooperation between the positioning post 303 and the positioning groove 304 defines the relative position of the power gear 2 in the horizontal plane.

[0022] Please refer to Figure 4 The positioning post 303 has sliding grooves 305 on both its left and right side walls. A sliding shell 306 is slidably connected to the inner wall of each sliding groove 305. The sliding shell 306 acts as a movable locking element and can reciprocate linearly within the sliding groove 305. An elastic support post 307 is fixedly connected between the inner wall of the sliding groove 305 and the inner wall of the sliding shell 306. The elastic support post 307 provides a continuous outward elastic thrust. In the initial or locked state, the sliding shell 306 moves towards the opening of the sliding groove 305 under the strong elastic action of the elastic support post 307 and partially... The sliding shell 306 protrudes from the surface of the positioning post 303. When the positioning post 303 is fully slid into the positioning groove 304, the sliding shell 306 is driven by the elastic force to engage with the protruding space inside the T-shaped positioning groove 304. The shape of the sliding shell 306 matches the shape of the inside of the positioning groove 304 to form a snap-fit. The sliding shell 306, after being ejected, completes the axial and radial fixation of the power gear 2 in the positioning groove 304 by using the positioning post 303. This achieves a quick and rigid connection between the base plate 1 and the rotating seat 302 and the power gear 2, and completes the efficient assembly of the power gear 2.

[0023] Please refer to Figure 4 and Figure 5The positioning post 303 has movable grooves 308 on both the left and right sides of its top. The internal space of the movable groove 308 is connected to the internal space of the sliding groove 305. A movable plate 309 is slidably connected to the inner wall of the movable groove 308. The bottom end of the movable plate 309 passes through the connection and is fixedly connected to the top end of the sliding shell 306. The movable plate 309 serves as the force-applying end for the unlocking operation. By applying a squeezing force to the two movable plates 309 in adjacent directions, the movable plates 309 slide within the movable groove 308. Simultaneously, the movable plates 309 drive the sliding shell 306 to retract inward within the sliding groove 305. The inward movement of the sliding shell 306 overcomes the elastic force of the elastic support post 307 and compresses the elastic support post 307, causing the sliding shell 306 to completely retract within the contour range of the positioning post 303. Once the locking position of the positioning groove 304 is released, the fixing restriction on the power gear 2 is lifted. At this time, pulling the power gear 2 upward will remove it from the rotating seat 302. A folding protective plate 310 is fixedly connected to the inner wall of the moving groove 308. The folding protective plate 310 is located on the side of the moving plate 309 and covers the opening of the moving groove 308. The folding protective plate 310 can expand and contract with the movement of the moving plate 309. The folding protective plate 310 is used to seal the connection channel between the moving groove 308 and the outside world, preventing external particles from entering the moving groove 308 and the connected sliding groove 305, which could cause the sliding shell 306 or the moving plate 309 to jam. The folding protective plate 310 ensures the reliability and flexibility of the assembly mechanism 3 in long-term operation.

[0024] As a preferred embodiment, in order to solve the heat dissipation problem during gear rotation, please refer to... Figure 5 The quick assembly positioning pin structure of the transmission gear also includes a heat dissipation mechanism 4. The heat dissipation mechanism 4 includes an oblique air guide hole 402 opened on the inner wall of the power gear 2. The oblique air guide hole 402 penetrates the entire structure of the power gear 2 and is used to form a specific airflow channel when the power gear 2 rotates.

[0025] As a further preferred embodiment, in order to enhance air intake efficiency and guide airflow, the heat dissipation mechanism 4 also includes a guide shell 401 fixedly connected to the top of the power gear 2 and located on the side of the oblique air guide hole 402. The guide shell 401 has a streamlined design and is used to capture the surrounding air during the high-speed rotation of the power gear 2 and force the air to be guided to the inlet of the oblique air guide hole 402. The guide shell 401 uses the wind pressure generated by the rotation to increase the airflow velocity entering the oblique air guide hole 402.

[0026] As a further preferred embodiment, in order to achieve internal circulating cooling of the rotating parts, please refer to... Figure 4 and Figure 5The inner wall of the rotating seat 302 is provided with a spiral air guide groove 403. When the power gear 2 is fixed on the top of the rotating seat 302, the bottom outlet of the inclined air guide hole 402 is precisely aligned with the top inlet of the spiral air guide groove 403 and they are connected to each other. Outside cold air is introduced into the inclined air guide hole 402 through the guide shell 401, and then enters the spiral air guide groove 403 and flows along the spiral path in the gap between the rotating seat 302 and the base plate 1. The circulating air can continuously carry away the heat generated by the rotation friction of the rotating seat 302 relative to the base plate 1, thereby reducing the working temperature of the rotating parts.

[0027] As another preferred embodiment, in order to reduce mechanical wear and extend service life, a lubrication groove 404 is provided in the lower middle part of the outer wall of the rotating seat 302. The lubrication groove 404 is in the shape of a ring around the outer periphery of the rotating seat 302. The lubrication groove 404 is used to store lubricating oil or grease. The lubricating medium in the lubrication groove 404 can continuously lubricate the rotating contact surface during the rotation of the rotating seat 302, effectively reducing the coefficient of friction.

[0028] As a preferred embodiment, in order to prevent lubricating oil leakage from causing environmental pollution or lubrication failure, a mounting groove 405 is provided in the upper middle part of the outer wall of the rotating seat 302. An elastic sealing ring 406 is fixedly connected to the inner wall of the mounting groove 405. The elastic sealing ring 406 is preferably made of oil-resistant rubber material. The outer wall of the elastic sealing ring 406 is tightly fitted with the inner wall of the power gear 2 to form a dynamic sealing structure. The elastic sealing ring 406 is used to prevent the lubricating oil in the lubrication groove 404 from overflowing upwards, ensuring the sealing and durability of the lubrication structure.

[0029] Working principle: During the rapid assembly of the power gear 2, the base plate 1 serves as the reference plane for the assembly of the power gear 2. The rotating seat 302 remains rotatable within the rotating groove 301 at the top of the base plate 1. Two positioning posts 303, fixedly connected to the top of the rotating seat 302, are aligned and slide into the T-shaped positioning groove 304 on the outer wall of the power gear 2. During the insertion process between the power gear 2 and the rotating seat 302, sliding grooves 305 are provided on both the left and right sides of the two positioning posts 303. A sliding shell 306 is slidably connected to the inner wall of the sliding groove 305. Under the strong elastic action of the elastic support column 307 fixed between the inner wall of the sliding shell 306 and the inner wall of the sliding groove 305, the moving shell 306 maintains the tendency to push outward, so that multiple sliding shells 306 move outward on the inner wall of the sliding groove 305, thereby enabling the sliding shells 306 to be inserted into the protruding part inside the T-shaped positioning groove 304. Thus, the positioning column 303, together with the ejected sliding shells 306 and the positioning groove 304, completes the rigid connection between the base plate 1 and the rotating seat 302 and the power gear 2, and quickly completes the assembly of the power gear 2. When the power gear 2 is damaged or requires maintenance and disassembly, the top left and right sides of the positioning column 303 are provided with movable grooves 308, and the movable grooves 308 are connected to the interior of the sliding groove 305. The movable plate 309, which is fixedly connected to the top of the sliding shell 306, can slide left and right on the inner wall of the movable groove 308. By manually moving the two movable plates 309 on the top of the same positioning column 303, the two movable plates 309 are pressed together in an adjacent direction. The movable plates 309 drive the sliding shell 306 to retract inward in the sliding groove 305, reducing the force of the elastic support column 307. The outer elasticity causes the sliding shell 306 to disengage from the locking position of the positioning groove 304, thereby canceling the fixation of the sliding shell 306 on the power gear 2. During this process, the folding protective plate 310 fixedly connected to the inner wall of the moving groove 308 can prevent external impurities from entering the moving groove 308 and the sliding groove 305. Afterwards, pulling the power gear 2 upwards can remove the power gear 2. The quick assembly positioning pin structure of the transmission gear utilizes the cooperation of various components in the assembly mechanism 3 to quickly complete the assembly and disassembly of the power gear 2, reducing downtime and improving the assembly efficiency of the power gear 2. During equipment operation, the power gear 2 drives the rotating seat 302 to rotate on the top of the base plate 1. Since the inner wall of the power gear 2 has two oblique air guide holes 402 and the inner wall of the rotating seat 302 has a spiral air guide groove 403, when the power gear 2 is fixed to the top of the rotating seat 302, the oblique air guide holes 402 and the spiral air guide groove 403 are connected. This allows the guide shell 401, fixed to the top of the power gear 2 and located on the sides of the two oblique air guide holes 402, to guide the air during the rotation of the power gear 2. This allows the outside cold air to circulate within the oblique air guide holes 402 and the spiral air guide groove 403, thereby carrying away and reducing the relative volume of the rotating seat 302 to the outside air. The heat generated when the base plate 1 rotates is reduced by the lubrication groove 404 provided in the lower middle part of the outer wall of the rotating seat 302. The lubricating oil injected into the lubrication groove 404 can reduce rotational friction. The upper middle part of the outer wall of the rotating seat 302 is provided with a mounting groove 405 and an elastic sealing ring 406 is fixedly connected to the inner wall of the mounting groove 405. The elastic sealing ring 406 can prevent the lubricating oil from overflowing. The inclined air guide hole 402 and the spiral air guide groove 403 in the heat dissipation mechanism 4 of the transmission gear quick assembly positioning pin structure work together to reduce the heat between the rotating seat 302 and the base plate 1. The lubricating oil in the lubrication groove 404 reduces friction, thereby extending the service life of the transmission gear quick assembly positioning pin structure.

Claims

1. A quick-assembly positioning pin structure for transmission gears, including a base plate (1), a rotating seat (302) and a power gear (2). The top of the base plate (1) is provided with a rotating groove (301), the rotating seat (302) is rotatably connected to the inner wall of the rotating groove (301), and the outer wall of the power gear (2) is provided with a positioning groove (304). Its features are, The quick-assembly positioning pin structure of the transmission gear also includes an assembly mechanism (3). The assembly mechanism (3) includes a positioning column (303) fixedly connected to the top of the rotating seat (302). The left and right side walls of the positioning column (303) are provided with sliding grooves (305). A sliding shell (306) is slidably connected to the inner wall of the sliding groove (305). An elastic support column (307) is fixedly connected between the inner wall of the sliding groove (305) and the inner wall of the sliding shell (306). The sliding shell (306) is used for... Under the elastic force, the elastic support column (307) moves toward the opening of the sliding groove (305) and gets stuck inside the positioning groove (304) to restrict the power gear (2) from disengaging. The positioning column (303) has a moving groove (308) on both the left and right sides of its top. The moving groove (308) is connected to the inside of the sliding groove (305). The moving plate (309) is slidably connected to the inner wall of the moving groove (308). The bottom end of the moving plate (309) is fixedly connected to the top end of the sliding shell (306).

2. The quick-assembly positioning pin structure for transmission gears according to claim 1, characterized in that, A folding protective plate (310) is fixedly connected to the inner wall of the moving groove (308). The folding protective plate (310) covers the internal space of the moving groove (308) and is used to block external impurities from entering the moving groove (308) and the sliding groove (305).

3. The quick-assembly positioning pin structure for transmission gears according to claim 1, characterized in that, The quick assembly positioning pin structure of the transmission gear also includes a heat dissipation mechanism (4), which includes an oblique air guide hole (402) opened on the inner wall of the power gear (2) and the oblique air guide hole (402) penetrates the power gear (2).

4. The quick-assembly positioning pin structure for transmission gears according to claim 3, characterized in that, The heat dissipation mechanism (4) also includes a guide shell (401) fixedly connected to the top of the power gear (2) and located on the side of the inclined air guide hole (402). The guide shell (401) is used to guide the air during the rotation of the power gear (2).

5. The quick-assembly positioning pin structure for transmission gears according to claim 3, characterized in that, The inner wall of the rotating seat (302) is provided with a spiral air guide groove (403). When the power gear (2) is fixed on the top of the rotating seat (302), the inclined air guide hole (402) is connected to the spiral air guide groove (403) so that the outside air circulates in the inclined air guide hole (402) and the spiral air guide groove (403).

6. The quick-assembly positioning pin structure for transmission gears according to claim 1, characterized in that, The lower part of the outer wall of the rotating seat (302) is provided with a lubrication groove (404), which is used to contain lubricating oil to reduce friction.

7. The quick-assembly positioning pin structure for transmission gears according to claim 6, characterized in that, The upper part of the outer wall of the rotating seat (302) is provided with a mounting groove (405), and an elastic sealing ring (406) is fixedly connected to the inner wall of the mounting groove (405). The elastic sealing ring (406) is used to prevent the lubricating oil in the lubrication groove (404) from overflowing.

8. The quick-assembly positioning pin structure for transmission gears according to claim 1, characterized in that, The positioning groove (304) is a T-shaped groove, and the shape of the sliding shell (306) is adapted to the shape of the protruding part of the positioning groove (304).

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