Mechanical hub odometer

Abstract

The utility model provides a kind of mechanical type hub odometer, including shell, main shaft, rotating support, reduction gear mechanism, counting mechanism and stable counterweight mechanism;Shell is axially installed on vehicle hub end cover, main shaft is installed on the axis of shell, rotating support is rotatably installed on main shaft;Reduction gear mechanism transmission is installed on the side of main shaft, and is connected with counting mechanism transmission, rotating support side wall recess and shell inner wall form guide rail groove between, stable counterweight mechanism is arranged in guide rail groove.The utility model has compact structure, can be adapted to compact hub space, can keep stable under various speeds of vehicle, improves measurement accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle mileage measurement devices, and in particular to a mechanical wheel hub odometer. Background Technology

[0002] Vehicle mileage is one of the core reference indicators for vehicle management and maintenance. When the fleet develops trailer maintenance plans, assesses trailer warranty periods, and calculates vehicle or parts rental costs, mileage is the most critical basis.

[0003] Existing in-wheel odometers are typically mounted at the end of the wheel axle, using a counting mechanism driven by the rotation of the wheel hub to record mileage. At high speeds, centrifugal force can cause the counting mechanism to tilt, affecting accuracy and stability. Furthermore, existing designs are often bulky, making them unsuitable for installation within the compact space of a wheel hub.

[0004] Some trailers are used in the transportation of hazardous chemicals such as oil tankers. Battery products should be avoided as much as possible on the trailers. The mechanical odometer does not require a power supply and has high durability and reliability in harsh weather conditions.

[0005] Therefore, how to provide a compact and stable mechanical hub odometer has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a mechanical wheel hub odometer with a compact structure that can be adapted to a compact wheel hub space, maintains stability at various vehicle speeds, and improves measurement accuracy.

[0007] The technical problem solved by this utility model is addressed by the following technical solution: A mechanical hub odometer includes: a housing, a main shaft, a rotating bracket, a reduction gear mechanism, a counting mechanism, and a stabilizing counterweight mechanism; the housing is axially mounted on a vehicle hub end cover, the main shaft is mounted on the axis of the housing, and the rotating bracket is rotatably mounted on the main shaft; the reduction gear mechanism is drivenly mounted on one side of the main shaft and is drivenly connected to the counting mechanism; a guide rail groove is formed between the side wall groove of the rotating bracket and the inner wall of the housing, and the stabilizing counterweight mechanism is disposed in the guide rail groove.

[0008] Furthermore, the reduction gear mechanism includes gear one, gear two, and gear three. Gear one meshes with gear two and gear three. Gear one is fixed on the main shaft. Gear two and gear three are rotatably connected to the rotating bracket through a rotating shaft. The diameters of gear one, gear two, and gear three increase sequentially.

[0009] Furthermore, the counting mechanism is connected to the reduction gear mechanism via a pawl and ratchet assembly. The pawl and ratchet assembly includes a pawl and a ratchet. The pawl is mounted on the rotating shaft of gear three and is connected to the ratchet, which is rotatably mounted on a rotating bracket.

[0010] Furthermore, the counting mechanism includes a bevel gear, a dial wheel group, and a carry wheel group. The dial wheel group and the carry wheel group are rotatably mounted on a rotating bracket via steel shafts. The bevel gear is coaxially arranged with the ratchet, and the bevel gear meshes with the dial wheel group, while the dial wheel group meshes with the carry wheel group.

[0011] Furthermore, the stabilizing counterweight mechanism includes a counterweight spring and a counterweight ball, with counterweight springs installed on both sides of the guide rail groove, and the counterweight ball rolling within the guide rail groove.

[0012] Furthermore, a counterweight is installed on the rotating support.

[0013] Furthermore, a label is fixed to the outer casing by screws, and the label has an observation port for the user to read the value displayed by rotating the dial.

[0014] Furthermore, an observation cover is installed on one side of the outer casing, and a sealing ring is provided between the observation cover and the outer casing.

[0015] The beneficial effects of this utility model are: This utility model provides a mechanical hub odometer with a simple structure and convenient use. It has a compact structure that can be adapted to the compact hub space. Through the compact arrangement of the reduction gear mechanism and the stabilizing counterweight mechanism, it ensures that the counting mechanism remains horizontal under the action of centrifugal force. It is suitable for various road conditions and can remain stable at various vehicle speeds, thus improving durability and measurement accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a cross-sectional view of the present invention.

[0017] In the figure: 1-Outer shell, 2-Observation cover, 3-Sealing ring, 4-Nameplate, 5-Screw, 6-Washer, 7-Nut, 8-Rotating bracket, 9-Bearing, 10-Counterweight, 11-Counterweight spring, 12-Counterweight ball, 13-Main shaft, 14-Gear shaft, 15-Gear 1, 16-Gear 2, 17-Gear 3, 18-Gear cover, 19-Pawl and ratchet assembly, 20-Pawl, 21-Ratchet, 22-Bevel gear, 24-Steel shaft, 25-Actuating wheel assembly, 26-Increment wheel assembly. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of 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 some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Reference Appendix Figures 1 to 3 This utility model provides a mechanical hub odometer, comprising: a housing 1, a main shaft 13, a rotating bracket 8, a reduction gear mechanism, a counting mechanism, and a stabilizing counterweight mechanism; the housing 1 is axially mounted on the vehicle hub end cover via a gasket 6 and a nut 7; the main shaft 13 is mounted on the axis of the housing 1; the rotating bracket 8 is rotatably mounted on the main shaft 13 via a bearing 9; the reduction gear mechanism is drivenly mounted on one side of the main shaft 13 and is drivenly connected to the counting mechanism; a guide rail groove is formed between the side wall groove of the rotating bracket 8 and the inner wall of the housing 1, the guide rail groove being a closed path; the stabilizing counterweight mechanism is disposed within the guide rail groove. The rotating bracket 8 is made of elastic synthetic resin material, and the housing 1 is cylindrical and made of stainless steel.

[0020] The reduction gear mechanism includes gear 15, gear 2 16, and gear 3 17. Gear 15 meshes with gear 3 17 through gear 2 16. Gear 15 is fixed on the main shaft 13 and is housed inside the gear cover 18. Gear 2 16 and gear 3 17 are rotatably connected to the rotating bracket 8 through a rotating shaft, and the diameters of gear 15, gear 2 16, and gear 3 17 increase sequentially.

[0021] The counting mechanism is connected to the reduction gear mechanism via a pawl and ratchet assembly 19. The pawl and ratchet assembly 19 includes a pawl 20 and a ratchet 21. The pawl 20 is mounted on the rotating shaft of the gear 3 17 and is connected to the ratchet 21, which is rotatably mounted on the rotating bracket 8.

[0022] The counting mechanism includes a bevel gear 22, a dial wheel set 25, and a carry wheel set 26. Both the dial wheel set 25 and the carry wheel set 26 are rotatably mounted on a rotating bracket 8 via a steel shaft 24. The bevel gear 22 is coaxially arranged with the ratchet 21, and the bevel gear 22 meshes with the lowest digit wheel of the dial wheel set 25. The dial wheel set 25 meshes with the carry wheel set 26. The main shaft 13 transmits power to the dial wheel set 25 as the wheels rotate, displaying the corresponding value.

[0023] The stabilizing counterweight mechanism includes a counterweight spring 11 and at least one counterweight ball 12. Counterweight springs 11 are installed on both sides of the guide rail groove. The counterweight ball 12 is rolled within the guide rail groove. When the vehicle decelerates or experiences bumps, the counterweight ball 12 rolls along the guide rail groove and compresses the spring. Under the pressure of the counterweight spring 11, the counterweight ball 12 absorbs energy, maintaining the angular stability of the rotating bracket 8 and thus keeping the odometer balanced. In this embodiment, two counterweight balls 12 are provided. The counterweight spring 11 is preferably a helical spring, and the ball is made of steel or a high-density antimagnetic material.

[0024] The rotating bracket 8 of this utility model is equipped with a counterweight 10 to maintain the rotating bracket 8 in a horizontal position.

[0025] A label 4 is fixed to the outer casing 1 by screws 5. The label 4 has an observation port for the user to read the value displayed by turning the dial 25.

[0026] An observation cover 2 is installed on one side of the outer casing 1, and a sealing ring 3 is provided between the observation cover 2 and the outer casing 1 for waterproofing and dustproofing.

[0027] This utility model provides a mechanical hub odometer with a simple structure and convenient use. It has a compact structure that can be adapted to the compact hub space. Through the compact arrangement of the reduction gear mechanism and the stabilizing counterweight mechanism, it ensures that the counting mechanism remains horizontal under the action of centrifugal force. It is suitable for various road conditions and can remain stable at various vehicle speeds, thus improving durability and measurement accuracy.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mechanical hub odometer, characterized in that, include: The device comprises a housing, a main shaft, a rotating bracket, a reduction gear mechanism, a counting mechanism, and a stabilizing counterweight mechanism. The housing is axially mounted on the vehicle wheel hub end cover, the main shaft is mounted on the axis of the housing, and the rotating bracket is rotatably mounted on the main shaft. The reduction gear mechanism is driven and mounted on one side of the main shaft and is connected to the counting mechanism. A guide rail groove is formed between the side wall groove of the rotating bracket and the inner wall of the housing, and the stabilizing counterweight mechanism is disposed in the guide rail groove.

2. The mechanical hub odometer according to claim 1, characterized in that, The reduction gear mechanism includes gear one, gear two and gear three. Gear one meshes with gear two and gear three. Gear one is fixed on the main shaft. Gear two and gear three are rotatably connected to the rotating bracket through a rotating shaft. The diameters of gear one, gear two and gear three increase sequentially.

3. A mechanical hub odometer according to claim 2, characterized in that, The counting mechanism is connected to the reduction gear mechanism via a pawl and ratchet assembly. The pawl and ratchet assembly includes a pawl and a ratchet. The pawl is mounted on the shaft of gear three and is connected to the ratchet, which is rotatably mounted on a rotating bracket.

4. A mechanical hub odometer according to claim 3, characterized in that, The counting mechanism includes a bevel gear, a dial wheel group, and a carry wheel group. The dial wheel group and the carry wheel group are rotatably mounted on a rotating bracket via steel shafts. The bevel gear is coaxially arranged with the ratchet and meshes with the dial wheel group. The dial wheel group meshes with the carry wheel group.

5. A mechanical hub odometer according to claim 1, characterized in that, The stabilizing counterweight mechanism includes a counterweight spring and a counterweight ball. The counterweight spring is installed on both sides of the guide rail groove, and the counterweight ball is rolled within the guide rail groove.

6. A mechanical hub odometer according to claim 5, characterized in that, The rotating support is equipped with a counterweight.

7. A mechanical hub odometer according to claim 1, characterized in that, A label is fixed to the outer casing with screws. The label has an observation port for the user to read the value displayed by rotating the dial.

8. A mechanical hub odometer according to claim 7, characterized in that, An observation cover is installed on one side of the outer casing, and a sealing ring is provided between the observation cover and the outer casing.

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