Transmission control mechanism of remote control toy car

Abstract

The utility model discloses a remote control toy car transmission control mechanism which comprises a transmission control shaft body, a protection mechanism is arranged on the outer wall of the transmission control shaft body, spline shafts are fixedly connected to the two ends of the protection mechanism, universal joints are connected to the outer walls of the spline shafts through splines, a lubricating mechanism is arranged in each universal joint, and the transmission control shaft body is fixedly connected with the transmission control shaft body. The lubricating mechanism comprises an oil inlet groove, an oil storage groove and an oil passing groove which are formed in the universal joint, the oil inlet groove is communicated with the oil storage groove, the oil storage groove is communicated with the oil passing groove, a threaded sealing plug is in threaded connection with the interior of the oil inlet groove, and a cross-shaped connecting disc is fixedly connected to the top of the threaded sealing plug. According to the transmission control mechanism of the remote control toy car, through the arranged lubricating assembly, an operator can more conveniently lubricate the spline shaft part of the transmission control shaft body, the spline shaft is prevented from being abraded when the transmission control shaft body rotates at a high speed, and the service life of the whole transmission control shaft is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the field of remote control toy cars, in particular to a transmission control mechanism for a remote control toy car. Background Art

[0002] The transmission control shaft is a rotating body with high speed and few supports. Therefore, its dynamic balance is crucial. Generally, the transmission shaft needs to undergo a dynamic balance test before leaving the factory and is adjusted on a balancing machine. For a front-engine rear-wheel-drive vehicle, it is the shaft that transmits the rotation of the transmission to the main reducer. It can be several sections, and the sections can be connected by universal joints. It can be applied to remote control toy cars to control the movement of the remote control toy cars.

[0003] When the transmission control shaft is connected to the universal joint, it is connected through a spline shaft. The spline connection consists of an internal spline and an external spline. When the transmission control shaft runs at high speed, it will cause friction between the spline shaft and the universal joint. Therefore, the transmission control shaft needs to be lubricated during use to avoid severe wear and damage of the transmission control shaft. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a transmission control mechanism for a remote control toy car to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A transmission control mechanism for a remote control toy car includes a transmission control shaft body. A protection mechanism is arranged on the outer wall of the transmission control shaft body. Spline shafts are fixedly connected to both ends of the protection mechanism. A universal joint is spline-connected to the outer wall of the spline shaft. A lubrication mechanism is arranged inside the universal joint. The lubrication mechanism includes an oil inlet groove, an oil storage groove and an oil passage groove opened inside the universal joint. The oil inlet groove communicates with the oil storage groove. The oil storage groove communicates with the oil passage groove. A threaded sealing plug is screwed in the oil inlet groove. A cross connection disk is fixedly connected to the top of the threaded sealing plug. A spline groove matching with the spline shaft is opened on the inner wall of the universal joint. The oil passage groove communicates with the spline groove.

[0007] As a further scheme of the utility model: The whole oil storage groove is annular, and the number of the oil passage grooves is multiple.

[0008] As a further scheme of the utility model: The protection mechanism includes a protection sleeve fixedly connected to the outer wall of the transmission control shaft body. A circular groove is opened inside the protection sleeve. A first reinforcing strip and a second reinforcing strip are arranged inside the circular groove. The first reinforcing strip is fixedly connected inside the circular groove. The first reinforcing strip and the second reinforcing strip are integrally formed.

[0009] As a further solution of the present utility model: A gear is connected to the outer wall of the protection mechanism by a flat key, and the number of gears is two.

[0010] As a further solution of the present utility model: One end of the universal joint is fixedly connected with a flange, the number of flanges is two, and a plurality of connection holes are formed in the interiors of the two flanges.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] In the present utility model, through the provided lubricating assembly, it is more convenient for the operator to lubricate the spline shaft portion of the transmission control shaft body, avoiding the wear of the spline shaft when the transmission control shaft body rotates at high speed, and effectively improving the overall service life of the transmission control shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of a transmission control mechanism for a remote control toy car;

[0014] Figure 2 It is a sectional view of a lubricating mechanism in a transmission control mechanism for a remote control toy car;

[0015] Figure 3 It is a schematic structural diagram of a protection mechanism in a transmission control mechanism for a remote control toy car.

[0016] In the figure: Transmission control shaft body 1, protection mechanism 2, universal joint 3, lubricating mechanism 4, gear 5, flange 6, protective sleeve 7, circular groove 8, first reinforcing strip 9, second reinforcing strip 10, oil inlet groove 11, threaded sealing plug 12, cross connecting plate 13, oil storage tank 14, oil through groove 15, spline groove 16. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1 to 3, in the embodiment of the present utility model, a transmission control mechanism for a remote control toy car includes a transmission control shaft body 1. A protection mechanism 2 is provided on the outer wall of the transmission control shaft body 1. Spline shafts are fixedly connected to both ends of the protection mechanism 2. A universal joint 3 is spline-connected to the outer wall of the spline shaft. A lubrication mechanism 4 is arranged inside the universal joint 3. A gear 5 is key-connected to the outer wall of the protection mechanism 2. The number of gears 5 is two. One end of the universal joint 3 is fixedly connected to a flange 6. The number of flanges 6 is two. A plurality of connection holes are opened inside both flanges 6.

[0019] As Figure 1 shown in Figure 3 , the lubrication mechanism 4 includes an oil inlet groove 11, an oil storage groove 14 and an oil passage groove 15 opened inside the universal joint 3. The oil inlet groove 11 communicates with the oil storage groove 14, and the oil storage groove 14 communicates with the oil passage groove 15. A threaded sealing plug 12 is screwed inside the oil inlet groove 11. A cross connection plate 13 is fixedly connected to the top of the threaded sealing plug 12. A spline groove 16 matching the spline shaft is opened on the inner wall of the universal joint 3. The oil passage groove 15 communicates with the spline groove 16. The oil storage groove 14 is integrally annular. The number of oil passage grooves 15 is multiple.

[0020] As Figure 1 shown in Figure 2 , the protection mechanism 2 includes a protective sleeve 7 fixedly connected to the outer wall of the transmission control shaft body 1. A circular groove 8 is opened inside the protective sleeve 7. A first reinforcing strip 9 and a second reinforcing strip 10 are arranged inside the circular groove 8. The first reinforcing strip 9 is fixedly connected inside the circular groove 8. The first reinforcing strip 9 and the second reinforcing strip 10 are integrally formed.

[0021] The protection mechanism 2 can enhance the strength of the transmission control shaft body 1 and prevent the transmission control shaft body 1 from breaking due to excessive torque. The protective sleeve 7, the first reinforcing strip 9 and the second reinforcing strip 10 are all made of manganese steel material, with high strength, and can enhance the strength of the transmission control shaft body 1 as a whole in different directions.

[0022] The working principle of the present utility model is:

[0023] When lubrication is required, the threaded sealing plug 12 is removed from the inside of the oil inlet groove 11 through the cross connection plate 13. Then, lubricating oil is injected into the inside of the oil storage groove 14 through the oil inlet groove 11. The lubricating oil then enters the inside of the spline groove 16 through the oil passage groove 15, and spreads to the spline shaft through the spline groove 16, thereby lubricating the spline shaft of the transmission control shaft and reducing the wear degree generated after the spline shaft rotates at high speed.

[0024] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A transmission control mechanism for a remote-controlled toy car, comprising a transmission control shaft body (1), characterized in that: The outer wall of the transmission control shaft body (1) is provided with a protection mechanism (2), both ends of the protection mechanism (2) are fixedly connected with a spline shaft, the outer wall of the spline shaft is spline-connected with a universal joint (3), and the interior of the universal joint (3) is provided with a lubrication mechanism (4), the lubrication mechanism (4) comprises an oil inlet groove (11), an oil storage groove (14) and an oil through groove (15) provided inside the universal joint (3), the oil inlet groove (11) is communicated with the oil storage groove (14), the oil storage groove (14) is communicated with the oil through groove (15), the interior of the oil inlet groove (11) is screw-connected with a threaded sealing plug (12), the top of the threaded sealing plug (12) is fixedly connected with a cross connection plate (13), the inner wall of the universal joint (3) is provided with a spline groove (16) matching the spline shaft, and the oil through groove (15) is communicated with the spline groove (16).

2. The transmission control mechanism of the remote control toy car according to claim 1, characterized in that: The oil storage tank (14) is annular in shape as a whole, and the number of the oil passage grooves (15) is multiple.

3. The transmission control mechanism of the remote control toy car according to claim 1, characterized in that: The protection mechanism (2) comprises a protection sleeve (7) fixedly connected to the outer wall of the transmission control shaft body (1); a circular groove (8) is provided inside the protection sleeve (7); a first reinforcement strip (9) and a second reinforcement strip (10) are provided inside the circular groove (8); the first reinforcement strip (9) is fixedly connected to the inside of the circular groove (8); and the first reinforcement strip (9) and the second reinforcement strip (10) are integrally formed.

4. The transmission control mechanism of the remote control toy car according to claim 1, characterized in that: The outer wall of the protection mechanism (2) is key-linked with gears (5), and the number of the gears (5) is two.

5. The transmission control mechanism of the remote control toy car according to claim 1, characterized in that: One end of the universal joint (3) is fixedly connected to a flange (6), the number of the flanges (6) is two, and a plurality of connection holes are provided inside the two flanges (6).

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