Semi-floating power adjusting device of small motor vehicle

By designing a semi-floating power adjustment device for small motor vehicles, the tension of the transmission belt can be adjusted using an adjusting screw. This solves the problems of transmission belt loosening during high-intensity operation and difficulty in field adjustment, reducing replacement costs and improving ease of use.

CN223991938UActive Publication Date: 2026-03-13YONGKANG MIMO IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-26
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing motor vehicle drive belts are prone to loosening during high-intensity operation, and are difficult to replace when they loosen or fall off in the field or while driving, with a lack of effective adjustment tools.

Method used

A semi-floating power adjustment device for small motor vehicles was designed, including components such as a power support, a shaft cylinder, a rotating gear plate, an adjustable support base, and an adjusting screw. The tension of the transmission belt is adjusted by rotating the adjusting screw. The structure is simple and the components can be quickly replaced when damaged.

Benefits of technology

It enables convenient adjustment of the drive belt, reduces replacement costs, and improves the convenience of field use and the precision standard of the drive belt.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a small motor vehicle semi-floating power adjusting device which comprises a power support and a shaft barrel, a driven shaft is rotatably connected in the shaft barrel, the upper end of the power support is fixedly connected with a positioning seat through a screw, the upper end of the positioning seat is fixedly connected with a power device, and the output end of the power device is fixedly connected with a rotating shaft. The semi-floating type power adjusting equipment is good in design practicability and simple in structure, when part of the structure of the semi-floating type power adjusting equipment is damaged, only bolts of the corresponding structures need to be taken out and replaced, meanwhile, the standard for precision of a transmission belt in the assembling process of the novel semi-floating type power adjusting equipment is lowered, and the production efficiency is improved. After being installed, the adjusting device can be adjusted to achieve the appropriate tightness of the transmission belt, and when the situations that the transmission belt is loosened and falls off due to too looseness occur in the field or in the driving process, the adjusting screw rod can be adjusted and rotated to push the height of the rotating fluted disc on the semi-floating power adjusting device to achieve the tightness adjustment of the transmission belt. The adjustment is convenient, simple and convenient.
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Description

Technical Field

[0001] This utility model is a semi-floating power adjustment device for small motor vehicles, belonging to the field of motor vehicle parts technology. Background Technology

[0002] In existing technology, drive belts on motor vehicles tend to loosen during high-intensity operation, and the drive belts are often assembled to extremely high precision standards. Currently, the tension of motor vehicle drive belts is adjusted by changing their length. As is well known, drive belts are not adjustable without special tools, and this design means that riding can only be accomplished by replacing the drive belt. However, this is extremely inconvenient when the drive belt becomes loose or falls off while riding in the wild, as it is difficult to find a repair shop to replace the belt. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a semi-floating power adjustment device for small motor vehicles, thereby solving the problems mentioned in the background. This utility model is highly practical and has a simple structure. When a part of the semi-floating power adjustment device is damaged, it is only necessary to remove the bolts of the corresponding structure and replace them, which is convenient for users to operate and reduces the cost of use.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a semi-floating power adjustment device for a small motor vehicle, comprising a power support and a shaft cylinder, wherein a driven shaft is rotatably connected inside the shaft cylinder, a positioning seat is fixedly connected to the upper end of the power support by screws, a power device is fixedly connected to the upper end of the positioning seat, a rotating shaft is fixedly connected to the output end of the power device, and a rotating gear is fixedly connected to the circumferential surface of the rotating shaft.

[0005] An adjustable bracket is fixedly connected to the circumference of the shaft. A coaxial fastening bolt is connected to the connecting hole on one side of the adjustable bracket and the push seat below the power bracket. An adjustable elongated hole is provided on the other side of the adjustable bracket, forming an adjustment groove. The front end of the push seat is set in the adjustment groove. The positioning hole on the side of the push seat passes through the elongated hole and is connected by a positioning screw. An adjusting screw is slidably connected to the front end of the power bracket and the adjustable bracket. A threaded hole is provided at the bottom of the adjustable bracket. The adjusting screw is screwed into the threaded hole. The top end of the adjusting screw is located below the push seat.

[0006] The front end of the shaft is rotatably connected to a belt toothed disc, the front end of the belt toothed disc is fixedly connected to a toothed disc seat, a storage box is fixedly connected to the circumferential surface of the adjusting screw, two support slide rods are fixedly connected inside the storage box, a sealing push plate is slidably connected between the two support slide rods, springs are provided on the circumferential surface of the two support slide rods, and oil outlet holes are opened at the front and rear ends of the adjusting screw.

[0007] Furthermore, a flange is fixedly connected to the front end of the shaft cylinder.

[0008] Furthermore, a brake disc seat is rotatably connected to the rear end of the shaft.

[0009] Furthermore, a rubber pad is provided between the positioning seat and the power support.

[0010] Furthermore, both the front end of the flange and the rear end of the brake disc seat are provided with through holes.

[0011] Furthermore, an oil groove is provided in the sliding groove on the surface of the adjustable bracket.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a semi-floating power adjustment device for small motor vehicles. Because it incorporates a power unit, rotating shaft, rotating gear disc, adjustable support base, power support, coaxial fastening bolts, adjusting screw, and belt gear disc, design improvements and practical use have shown that this device is highly practical and has a simple structure. When any part of the semi-floating power adjustment device is damaged, only the corresponding bolts need to be removed and replaced. Furthermore, the precision standard for the transmission belt is lowered during the assembly process; after assembly, only the adjusting device needs to be adjusted to achieve the appropriate transmission belt tension. In the event of slack or excessively loose transmission belt falling off during field operations or driving, simply adjusting the rotating adjusting screw will push the rotating gear disc on the semi-floating power adjustment device to adjust the transmission belt tension. This adjustment is convenient and simple. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a semi-floating power adjustment device for a small motor vehicle according to the present invention.

[0015] Figure 2 This is a first-view structural schematic diagram of a semi-floating power adjustment device for a small motor vehicle according to the present invention.

[0016] Figure 3 This is a second-view structural schematic diagram of a semi-floating power adjustment device for a small motor vehicle according to the present invention.

[0017] Figure 4 This is a third-view structural diagram of a semi-floating power adjustment device for a small motor vehicle according to the present invention.

[0018] Figure 5 This is an exploded structural diagram of a semi-floating power regulation device for small motor vehicles according to the present invention.

[0019] Figure 6 This is a diagram showing the downward movement of the adjusting screw of a semi-floating power adjustment device for small motor vehicles according to this utility model.

[0020] Figure 7 This is a partial structural diagram from a second perspective of the present invention: a semi-floating power adjustment device for a small motor vehicle.

[0021] Figure 8 This is a diagram showing the state of the adjusting screw of a semi-floating power adjustment device for small motor vehicles pushing the power support upward.

[0022] Figure 9 This is a first-view partial motion diagram of a semi-floating power adjustment device for a small motor vehicle according to the present invention.

[0023] Figure 10 This is a second-view partial motion diagram of a semi-floating power adjustment device for a small motor vehicle according to the present invention.

[0024] Figure 11 This is a third-view partial motion diagram of a semi-floating power adjustment device for a small motor vehicle according to the present invention.

[0025] Figure 12 This is a cross-sectional schematic diagram of the adjusting screw in a semi-floating power adjustment device for small motor vehicles according to this utility model.

[0026] In the diagram: 1-shaft cylinder, 2-flange, 3-belt gear, 300-rotating gear, 4-driven shaft, 400-rotating shaft, 5-brake disc seat, 6-gear seat, 7-adjustable bracket seat, 701-elongated hole, 8-power bracket, 801-push seat, 800-power unit, 9-coaxial fastening bolt, 900-positioning seat, 10-adjusting screw, 11-storage box, 12-sealing push plate, 13-support slide bar, 14-spring, 15-oil outlet. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] Please see Figures 1-12This utility model provides a technical solution: a semi-floating power adjustment device for a small motor vehicle, including a power support 8 and a shaft cylinder 1. A driven shaft 4 is rotatably connected inside the shaft cylinder 1. A positioning seat 900 is fixedly connected to the upper end of the power support 8 by screws. A power device 800 is fixedly connected to the upper end of the positioning seat 900. A rotating shaft 400 is fixedly connected to the output end of the power device 800. A rotating gear 300 is fixedly connected to the circumferential surface of the rotating shaft 400.

[0029] An adjustable bracket 7 is fixedly connected to the circumference of the shaft cylinder 1. A coaxial fastening bolt 9 is connected to a connecting hole on one side of the adjustable bracket 7 and the push seat 801 below the power support 8. This allows for vertical and horizontal movement with limited left and right movement. The other side of the adjustable bracket 7 has a horizontally adjustable elongated hole 701 forming an adjustment groove. The front end of the push seat 801 is positioned within this groove. A positioning hole on the side of the push seat 801 passes through the elongated hole 701 and is connected by a positioning screw. The front end of the push seat 801 can move vertically and is guided by the positioning screw. The power support 8 and the adjustable bracket 7... The front end of the adjustable bracket 7 is slidably connected to an adjusting screw 10. A threaded hole is provided at the bottom of the adjustable bracket 7, and the adjusting screw 10 is screwed into the threaded hole. The top end of the adjusting screw 10 is located below the push seat 801. By adjusting the height of the adjusting screw 10, the push seat 801 is pushed up or down to adjust the height of the rotating gear 300 on the power bracket 8, thereby completing the distance between the rotating gear 300 and the belt gear 3, and achieving the tension of the power belt. A positioning hole is provided at the center of the upper end of the adjustable bracket 7. After adjustment, it is positioned by positioning screws.

[0030] The front end of the shaft cylinder 1 is rotatably connected to a belt toothed disc 3, and the front end of the belt toothed disc 3 is fixedly connected to a toothed disc seat 6. A storage box 11 is fixedly connected to the circumferential surface of the adjusting screw 10. Two support slide rods 13 are fixedly connected inside the storage box 11. A sealing push plate 12 is slidably connected between the two support slide rods 13. Springs 14 are provided on the circumferential surface of both support slide rods 13. Oil outlet holes 15 are opened at the front and rear ends of the adjusting screw 10. This design solves the problem of the original semi-floating power adjustment device for motor vehicles, which not only transmits torque and drives the wheels to rotate, but also needs to bear part of the vehicle's weight. When the semi-floating power adjustment device is damaged, the entire component needs to be replaced, which is time-consuming, labor-intensive, and increases the cost of use.

[0031] A flange 2 is fixedly connected to the front end of the shaft cylinder 1, which can be bolted to an external device, allowing the driven shaft 4 to rotate within the shaft cylinder 1. A brake disc seat 5 is rotatably connected to the rear end of the shaft cylinder 1, which can be bolted to an external device to support the shaft cylinder 1. A rubber pad is provided between the positioning seat 900 and the power bracket 8 to protect the connection surface between the positioning seat 900 and the power bracket 8 and prevent damage from collisions during the installation of the positioning seat 900. Both the front end of the flange 2 and the rear end of the brake disc seat 5 have through holes, allowing bolts to pass through for connection and fixing to the vehicle. An oil groove is provided in the sliding groove on the surface of the adjustable bracket seat 7, so that the connection position between the adjusting screw 10 and the adjustable bracket seat 7 is lubricated, reducing friction between the adjusting screw 10 and the adjustable bracket seat 7 when the position of the adjustable bracket seat 7 needs to be adjusted.

[0032] The working principle of this specific embodiment is as follows: First, the power unit 800 is placed on the surface of the power bracket 8 and then fixedly connected by screws. The flange 2 and the brake disc seat 5 are fixedly connected to the motor vehicle parts by screws. When it is necessary to adjust the matching relationship between the power unit 800 and the belt toothed disc 3, the adjusting screw 10 needs to be loosened, and the angle between the adjustable bracket seat 7 and the power bracket 8 needs to be adjusted. Then the adjusting screw 10 is fixed, thereby completing the adjustment of the position of the belt toothed disc 3 and the rotating toothed disc 300. When it is necessary to lubricate the adjustable bracket seat 7 and the power bracket 8, the lubricating oil gun can be pushed against the sealing push plate 12 to move it inward, and then the lubricating oil in the lubricating oil can be introduced into the storage box 11, so that the lubricating oil moves through the oil outlet 15 to the screws on the surface of the adjustable bracket seat 7, the power bracket 8 and the adjusting screw 10, thereby reducing the friction between the adjustable bracket seat 7, the power bracket 8 and the adjusting screw 10.

[0033] In this specific embodiment, the adjusting screw 10 is adjusted by rotating it in the forward direction. The adjusting screw 10 moves upward in the threaded hole of the adjustable bracket seat 7. The top of the adjusting screw 10 pushes the positioning seat 900 to move upward, which in turn drives the power device 800 on the positioning seat 900 to move upward. The rotating gear 300 on the power device 800 moves upward, and the chain or transmission belt on the rotating gear 300 and the belt gear 3 becomes tighter.

[0034] In this specific embodiment, the adjusting screw 10 is rotated in reverse. The adjusting screw 10 moves downward in the threaded hole of the adjustable bracket seat 7. The top of the adjusting screw 10 drives the positioning seat 900 to move downward, and at the same time drives the power device 800 on the positioning seat 900 to move downward. The rotating gear 300 on the power device 800 moves downward, and the chain or transmission belt on the rotating gear 300 and the belt gear 3 becomes loose.

[0035] In this specific embodiment, the operator first loosens the screw on the positioning hole at the center of the upper end of the adjustable bracket 7, so that the end of the adjustable bracket 7 and the push seat 801 near the elongated hole 701 is not fixed. Then, the operator rotates the adjusting screw 10 below the adjustable bracket 7. The adjusting screw 10 moves up or down to complete the distance between the rotating gear 300 and the belt gear 3, thereby adjusting the tension of the force transmission belt.

[0036] This specific embodiment adds a power unit, a rotating shaft, a rotating gear disc, an adjustable support base, a power support, coaxial fastening bolts, an adjusting screw, and a belt gear disc. Design improvements and practical use have shown that this device is highly practical and has a simple structure. When any part of the semi-floating power adjustment device is damaged, only the corresponding bolts need to be removed and replaced. Furthermore, the precision standard for the transmission belt is lowered during the assembly of the new machine; after assembly, only the adjusting device needs to be adjusted to achieve the appropriate transmission belt tension. In the event of slack or excessively loose transmission belt falling off during field operations or travel, simply adjusting the rotating adjusting screw will push the rotating gear disc on the semi-floating power adjustment device to adjust the transmission belt tension. This adjustment is convenient and simple.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] 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 small motor vehicle semi-floating power adjustment device comprising a power support (8) and a shaft cylinder (1), characterized in that: The driven shaft (4) is rotatably connected in the shaft cylinder (1), the upper end of the power support (8) is fixedly connected with a positioning seat (900) through a screw, the upper end of the positioning seat (900) is fixedly connected with a power device (800), the output end of the power device (800) is fixedly connected with a rotating shaft (400), and the circumferential surface of the rotating shaft (400) is fixedly connected with a rotating gear disc (300). The circumferential surface of the shaft cylinder (1) is fixedly connected with an adjustable support seat (7), coaxial fastening bolts (9) are connected in the connecting holes of one end side between the adjustable support seat (7) and the pushing seat (801) below the power support (8), the other end side of the adjustable support seat (7) is provided with left and right adjustable long strip holes (701) and forms an adjusting groove, the front end of the pushing seat (801) is arranged in the adjusting groove, the positioning holes of the side of the pushing seat (801) are penetrated through the long strip holes (701) and are connected through positioning screws, the front end of the power support (8) and the adjustable support seat (7) is slidably connected with an adjusting screw rod (10), the lower side of the adjustable support seat (7) is provided with a threaded hole, the adjusting screw rod (10) is rotatably arranged in the threaded hole, and the top end of the adjusting screw rod (10) is arranged below the pushing seat (801). The front end of the shaft cylinder (1) is rotatably connected with a belt gear disc (3), the front end of the belt gear disc (3) is fixedly connected with a gear disc seat (6), the circumferential surface of the adjusting screw rod (10) is fixedly connected with a receiving box (11), two supporting slide rods (13) are fixedly connected in the receiving box (11), a sealing pushing disc (12) is slidably connected between the two supporting slide rods (13), springs (14) are arranged on the circumferential surfaces of the two supporting slide rods (13), and oil outlet holes (15) are formed in the front and rear ends of the adjusting screw rod (10).

2. A semi-floating powertrain mount for a small motor vehicle as defined in claim 1, wherein: The front end of the shaft cylinder (1) is fixedly connected with a flange plate (2).

3. A semi-floating powertrain mounting arrangement for a small motor vehicle according to claim 2, characterised in that: The rear end of the shaft cylinder (1) is rotatably connected with a brake disc seat (5).

4. A semi-floating powertrain mounting arrangement for a small motor vehicle according to claim 3, characterised in that: The positioning seat (900) and the power support (8) are provided with rubber pads.

5. A semi-floating powertrain mounting arrangement for a small motor vehicle according to claim 4, characterised in that: The front end of the flange plate (2) and the rear end of the brake disc seat (5) are both provided with through holes.

6. A semi-floating powertrain mounting arrangement for a small motor vehicle according to claim 5, wherein: An oil groove is arranged in the sliding groove on the surface of the adjustable support seat (7).