Removable transmission mechanism

Abstract

This utility model provides a transmission mechanism that is easy to disassemble: it includes a frame, a bearing housing, and a drive shaft. The bearing housing is connected to the frame, and the drive shaft is rotatably connected to the shaft hole of the bearing housing. The bearing housing includes a support base and a clamping top. The support base is fixedly connected to the frame, and the clamping top is detachably connected to the support base. The support base and the clamping top have concave first and second arc-shaped portions on their opposite end faces, which together form the shaft hole. A bearing is connected to the drive shaft and is tightly fitted into the shaft hole. By configuring the bearing housing into two parts, a support base and a clamping top, when disassembling the drive shaft, only the clamping top needs to be removed from the support base, and the drive shaft can be directly taken out from the shaft hole without the need for specialized mechanical equipment to axially push the drive shaft, making the operation simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of vacuum safety valve technology, specifically to a transmission mechanism that is easy to disassemble. Background Technology

[0002] Off-road go-karts are small racing cars that can travel on complex terrain. They are widely applicable to beaches, mountains, forests, riverbeds, and snowfields, allowing them to travel freely without road restrictions. They provide drivers and passengers with a strong sense of excitement from bumps and jumps, and are safe, easy, and convenient to drive.

[0003] The transmission structure of off-road go-karts is relatively simple. The engine's drive wheel is connected to the driven wheel on the drive shaft via a belt or chain. The flanges at both ends of the drive shaft are connected to the half-shafts of the drive wheels. The engine drives the drive shaft to rotate, which in turn drives the drive wheels through the half-shafts. The drive shaft is rotatably connected to a bearing housing with a shaft hole. The drive shaft is fitted with a bearing, which is then pressed horizontally into the shaft hole using mechanical equipment. Due to the complex driving terrain of off-road go-karts, the drive shaft and bearings are more prone to wear. Disassembly and repair require mechanical equipment to push the drive shaft axially to push one of the bearings horizontally out of the shaft hole. After removing the flange at one end of the drive shaft, the process is repeated in reverse to remove the flange at the other end (because of the driven wheel on the drive shaft, it cannot be pushed out of the shaft hole in one direction). The entire disassembly process is very complex, requires mechanical equipment, and is time-consuming and labor-intensive. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a transmission mechanism that facilitates the disassembly and assembly of the transmission shaft.

[0005] The technical solution of this utility model is to provide a transmission mechanism that is easy to disassemble, having the following structure: The system includes a frame, a bearing housing, and a drive shaft. The bearing housing is connected to the frame, and the drive shaft is rotatably connected to the shaft hole of the bearing housing. The bearing housing includes a support base and a clamping top. The support base is fixedly connected to the frame, and the clamping top is detachably connected to the support base. The support base and the clamping top have concave first arc-shaped portions and second arc-shaped portions on their opposite end faces, which together form the shaft hole. A bearing is connected to the drive shaft, and the bearing is tightly fitted into the shaft hole.

[0006] After adopting the above structure, the easily disassembled transmission mechanism of this utility model has the following advantages compared with the prior art: The bearing housing is configured as two parts: a support base and a clamping top. When disassembling the drive shaft, simply remove the clamping top from the support base, and the drive shaft can be taken directly out of the shaft hole without the need for special mechanical equipment to radially (axially) push the drive shaft. The operation is simple and convenient. When reassembling, simply place the bearing on the drive shaft into the first arc-shaped part, and then connect the clamping top to the support base. At this time, the first arc-shaped part and the second arc-shaped part cooperate to firmly fix the bearing in the shaft hole.

[0007] Preferably, the support base has a first screw hole at each end of the first arc-shaped portion, and the clamping top has a second screw hole at each end of the second arc-shaped portion, corresponding to the first screw holes. A bolt is threaded into each of the second screw holes, and the connecting end of the bolt passes through the second screw hole and is threaded into the corresponding first screw hole. The support base and the clamping top are detachably connected by bolts, requiring only a wrench for easy assembly and disassembly.

[0008] Preferably, the first and second screw holes have a first countersunk hole and a second countersunk hole respectively at their opposite ends; the bearing housing also includes a cylindrical guide sleeve, the two ends of which are respectively inserted into the first and second countersunk holes for the bolt connection ends to pass through. The guide sleeve facilitates the alignment of the first and second screw holes, making bolt connection convenient; wherein, the sum of the depth dimensions of the first and second countersunk holes is the same as the length dimension of the guide sleeve; the outer diameter dimension of the guide sleeve is the same as the inner diameter dimension of the first and second countersunk holes; the inner diameter dimension of the guide sleeve is not less than the inner diameter dimension of the first and second screw holes.

[0009] Preferably, the support base has at least one first radial through hole on its side wall, the clamping top has a second radial through hole, and an L-shaped mounting bracket is fixedly connected to the frame. The mounting bracket has a third radial through hole corresponding to each of the first and second radial through holes. The first and second radial through holes are detachably connected to their corresponding third radial through holes by bolts. After the support base and the clamping top are connected together, they are then connected to the mounting bracket by bolts, which makes the connection between the support base and the clamping top more tight and secure.

[0010] Preferably, the top center of the clamping top seat is provided with a third screw hole, which extends vertically downward and communicates with the shaft hole. A matching screw is threaded into the third screw hole, which normally serves to prevent dust from entering. When it is necessary to remove the clamping top seat from the support base, the bolt can be unscrewed first. However, due to the tight connection between the clamping top seat and the support base, coupled with the guide sleeve, it is still difficult to remove the clamping top seat. At this point, the screw in the third screw hole can be screwed on. The connecting end of the screw will pass through the third screw hole and abut against the outer peripheral wall of the bearing inside the shaft hole. Continue to screw on with a wrench, and the screw will lift the clamping top seat, thereby removing it. The entire disassembly process only requires a wrench and does not require any other tools.

[0011] Preferably, the drive shaft is provided with a driven wheel for driving connection with the engine's drive wheel; flanges are connected to both ends of the drive shaft for connecting half shafts; there are two bearing seats, which are respectively provided on both sides of the driven wheel, and there are also two bearings, which are tightly fitted into the shaft holes of the corresponding bearing seats. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a partial sectional view of the present invention.

[0014] Figure 3 This is a schematic diagram of the bearing housing in this utility model.

[0015] Figure 4 This is a half-sectional view of the bearing housing in this utility model.

[0016] Figure 5 This is an exploded view of the bearing housing in this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Frame; 11. Mounting bracket; 111. Third radial through hole; 2. Bearing housing; 21. Support base; 211. First arc-shaped part; 212. First screw hole; 213. First countersunk hole; 214. First radial through hole; 22. Pressing top seat; 221. Second arc-shaped part; 222. Second screw hole; 223. Second countersunk hole; 224. Second radial through hole; 225. Third screw hole; 23. Shaft hole; 24. Guide sleeve; 3. Drive shaft; 31. Bearing; 32. Driven wheel; 33. Flange; 4. Bolt. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model. At the same time, the terms "first", "second", etc., are only used to distinguish the names of various components and do not have a primary or secondary relationship. Therefore, they should not be construed as limitations on this utility model.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this utility model discloses a transmission mechanism that is easy to disassemble: it includes a frame 1, a bearing housing 2, and a drive shaft 3; the bearing housing 2 is connected to the frame 1, and has a shaft hole 23; a bearing 31 is connected to the drive shaft 3, and the bearing 31 is tightly fitted in the shaft hole 23, so that the drive shaft 3 and the bearing housing 2 are rotatably connected. The bearing housing 2 includes an outer ring, an inner ring, and balls; the outer ring is tightly fitted in the shaft hole 23, the inner ring is fixedly sleeved on the drive shaft 3, and the balls are located between the outer ring and the inner ring. This is prior art, so it will not be described in detail here.

[0021] The drive shaft 3 is provided with a driven wheel 32 for driving connection with the engine's drive wheel; the two ends of the drive shaft 3 are connected with flanges 33 for connecting half shafts; there are two bearing seats 2, which are respectively set on both sides of the driven wheel 32, and there are also two bearings 31, which are tightly fitted into the shaft holes 23 of the corresponding bearing seats 2.

[0022] The bearing housing 2 includes a support base 21 and a pressing top seat 22. The support base 21 is fixedly connected to the frame 1, and the pressing top seat 22 is detachably connected to the support base 21. The support base 21 and the pressing top seat 22 are respectively provided with a concave first arc-shaped part 211 and a second arc-shaped part 221 on their opposite end faces. The first arc-shaped part 211 and the second arc-shaped part 221 surround to form the aforementioned shaft hole 23.

[0023] The support base 21 has a first screw hole 212 at each end of the first arc-shaped part 211. The pressing top seat 22 has a second screw hole 222 at each end of the second arc-shaped part 221, which passes through the upper and lower ends and corresponds one-to-one with the first screw hole 212. A bolt 4 is threaded onto the second screw hole 222. The connecting end of the bolt 4 passes through the second screw hole 222 and is threadedly connected to the corresponding first screw hole 212.

[0024] This utility model sets the bearing housing 2 into two parts: a support base 21 and a clamping top seat 22. The support base 21 and the clamping top seat 22 are detachably connected by bolts 4. When disassembling the drive shaft 3, only a wrench is needed to remove the clamping top seat 22 from the support base 21, and the drive shaft 3 can be directly taken out from the shaft hole 23 without the need for special mechanical equipment to radially push the drive shaft 3. The operation is simple and convenient. When reassembling, simply put the bearing 31 on the drive shaft 3 into the first arc-shaped part 211, and then connect the clamping top seat 22 to the support base 21 with bolts 4. At this time, the first arc-shaped part 211 and the second arc-shaped part 221 cooperate to firmly fix the bearing 31 in the shaft hole 23 again. The disassembly and assembly process is simple and convenient.

[0025] The first screw hole 212 and the second screw hole 222 are respectively provided with a first countersunk hole 213 and a second countersunk hole 223 at their opposite ends; the bearing seat 2 also includes a cylindrical guide sleeve 24, the two ends of which are respectively inserted into the first countersunk hole 213 and the second countersunk hole 223 for the connecting end of the bolt 4 to pass through.

[0026] The sum of the depths of the first countersunk hole 213 and the second countersunk hole 223 is the same as the length of the guide sleeve 24; the outer diameter of the guide sleeve 24 is the same as the inner diameter of the first countersunk hole 213 and the second countersunk hole 223; the inner diameter of the guide sleeve 24 is not less than the inner diameter of the first screw hole 212 and the second screw hole 222; the guide sleeve 24 facilitates the alignment of the first screw hole 212 and the second screw hole 222, and facilitates the connection of the bolt 4.

[0027] The support base 21 has at least one first radial through hole 214 on its side wall, and the clamping top seat 22 has a second radial through hole 224. An L-shaped mounting bracket 11 is fixedly connected to the frame 1. The mounting bracket 11 has third radial through holes 111 that correspond one-to-one with the first radial through holes 214 and the second radial through holes 224. The first radial through holes 214 and the corresponding third radial through holes 111 are connected by bolts 4 or screws, and the second radial through holes 224 and the corresponding third radial through holes 111 are connected by bolts 4 or screws. After the support base 21 and the clamping top seat 22 are connected together, they are then connected to the mounting bracket 11 by bolts 4, which makes the connection between the support base 21 and the clamping top seat 22 tighter and more secure.

[0028] The top center of the clamping top seat 22 is provided with a third screw hole 225, which extends vertically downward and connects to the shaft hole 23. The internal thread of the third screw hole 225 is connected to a matching screw, which normally serves to prevent dust from entering. When it is necessary to remove the clamping top seat 22 from the support base 21, the bolt 4 can be unscrewed with a wrench. At this time, due to the tight connection between the clamping top seat 22 and the support base 21, and the guide sleeve 24, it is still difficult to remove the clamping top seat 22. Then, the screw on the third screw hole 225 can be screwed. The connecting end of the screw will pass through the third screw hole 225 and abut against the outer peripheral wall of the bearing 31 in the shaft hole 23. Continue to screw with a wrench, and the screw will lift the clamping top seat 22, thereby removing the clamping top seat 22. The entire disassembly process only requires a wrench and does not require other tools.

[0029] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A detachable transmission mechanism, comprising a frame (1), a bearing housing (2), and a drive shaft (3), wherein the bearing housing (2) is connected to the frame (1), and the drive shaft (3) is rotatably connected to a shaft hole (23) in the bearing housing (2); characterized in that: The bearing housing (2) includes a support base (21) and a pressing top seat (22). The support base (21) is fixedly connected to the frame (1), and the pressing top seat (22) is detachably connected to the support base (21). The support base (21) and the pressing top seat (22) are respectively provided with a concave first arc-shaped part (211) and a second arc-shaped part (221) on their opposite end faces. The first arc-shaped part (211) and the second arc-shaped part (221) surround to form the shaft hole (23). A bearing (31) is connected to the drive shaft (3), and the bearing (31) is tightly fitted in the shaft hole (23). The support base (21) has a first screw hole (212) at both ends of the first arc-shaped part (211), and the pressing top seat (22) has a second screw hole (222) at both ends of the second arc-shaped part (221) that passes through its upper and lower ends and corresponds one-to-one with the first screw hole (212). A bolt (4) is threaded on the second screw hole (222), and the connecting end of the bolt (4) passes through the second screw hole (222) and is threadedly connected to the corresponding first screw hole (212). The first screw hole (212) and the second screw hole (222) are respectively provided with a first countersunk hole (213) and a second countersunk hole (223) at their opposite ends; the bearing seat (2) also includes a cylindrical guide sleeve (24), the two ends of which are respectively inserted into the first countersunk hole (213) and the second countersunk hole (223) for the connecting end of the bolt (4) to pass through.

2. The easily disassembled transmission mechanism according to claim 1, characterized in that: The support base (21) has at least one first radial through hole (214) on its side wall, the pressing top seat (22) has a second radial through hole (224) on its side wall, and an L-shaped mounting bracket (11) is fixedly connected to the frame (1). The mounting bracket (11) has a third radial through hole (111) that corresponds one-to-one with the first radial through hole (214) and the second radial through hole (224). The first radial through hole (214) and the corresponding third radial through hole (111) are detachably connected by bolts (4), and the second radial through hole (224) and the corresponding third radial through hole (111) are detachably connected by bolts (4).

3. The easily disassembled transmission mechanism according to claim 2, characterized in that: The top center of the pressing top seat (22) is provided with a third screw hole (225), which extends vertically downward and is connected to the shaft hole (23).

4. The easily disassembled transmission mechanism according to claim 1, characterized in that: The drive shaft (3) is provided with a driven wheel (32) for driving connection with the drive wheel of the engine; the two ends of the drive shaft (3) are connected with flanges (33) for connecting half shafts; there are two bearing seats (2), which are respectively set on both sides of the driven wheel (32); there are also two bearings (31), which are respectively tightly fitted in the shaft hole (23) of the corresponding bearing seat (2).

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