Gearbox

Abstract

The utility model relates to the technical field of gearbox equipment, in particular to a gearbox which comprises a shell. The input shaft is rotationally arranged in the shell, the upper end of the input shaft penetrates through the shell, and a first movable gear, a second movable gear and a third movable gear are sequentially arranged on the upper portion of the input shaft from top to bottom; the output shaft is rotationally arranged in the shell, the lower end of the output shaft penetrates through the shell, a driven gear set is arranged on the output shaft in a sliding mode, and the driven gear set comprises a first driven gear, a second driven gear and a third driven gear; the device solves the problem that a traditional gearbox is high in maintenance cost due to the complex structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to gearbox equipment technical field, concretely relates to a gearbox. BACKGROUND

[0002] The gearbox (also called the transmission) is the device for changing the output speed and torque of the power transmission system in the vehicle or the machinery. It is the important component part between the engine and the driving wheel, can adjust the power output according to the driving demand and the road condition, and promotes the efficiency and the performance.

[0003] The existing gearbox generally has problems such as complex structure, which leads to high production cost and maintenance difficulty, and the complex structure not only increases the manufacturing difficulty, but also reduces the reliability of the equipment and increases the maintenance cost. Therefore, developing a simple structure and easy-to-maintain gearbox has important practical significance. UTILITY MODEL CONTENT

[0004] The utility model discloses a gearbox, solve the problem that the maintenance cost of traditional gearbox is high because of complex structure.

[0005] The utility model solves the technical scheme that the technical problem thereof is:

[0006] The utility model provides a gearbox, including the casing, input shaft, the input shaft rotation is arranged in the casing, and the upper end of input shaft is through the casing, and the upper portion of input shaft is sequentially provided with first motion gear, second motion gear and third motion gear from top to bottom, output shaft, the output shaft rotation is arranged in the casing, and the lower end of output shaft is through the casing, and the output shaft is slidably provided with from gear set, and the from gear set includes first from gear, second from gear and third from gear.

[0007] Further, the input shaft and the output shaft are arranged in parallel.

[0008] Further, the first from gear, the second from gear and the third from gear are integrally arranged.

[0009] Further, the first motion gear is arranged correspondingly with the first from gear, the second motion gear is arranged correspondingly with the second from gear, and the third motion gear is arranged correspondingly with the third from gear.

[0010] Further, the output shaft is provided with a skeleton oil seal at the connection with the casing.

[0011] Further, the output shaft is rotationally arranged in the casing through a first bearing, and the input shaft is rotationally arranged in the casing through a second bearing.

[0012] Further, the side surface of the output shaft is provided with a sliding groove distributed along the length direction of the output shaft, and the from gear set is slidably arranged in the sliding groove.

[0013] The technical effects of the utility model are as follows:

[0014] Compared with the prior art, the gearbox reduces the number of parts, simplifies the structure of the gearbox, can effectively reduce the production cost, greatly improves the maintainability of the device, and reduces the maintenance cost of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model discloses a main body structure schematic diagram;

[0016] Figure 2 The utility model discloses A department structure amplification schematic diagram. Figure 1

[0017] Among them:

[0018] 1, shell;2, output shaft;3, input shaft;4, first bearing;5, second bearing;6, from gear group;7, first driving gear;8, second driving gear;9, third driving gear;10, skeleton oil seal;61, first from gear;62, second from gear;63, third from gear. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] Embodiment:

[0021] For example Figure 1 , 2 ​As shown, the gearbox described in the embodiment comprises a housing 1, a lubricating oil channel and an oil cavity are arranged inside the housing 1 for lubricating and cooling the internal parts, reducing wear and prolonging the service life of the gearbox; an input shaft 3 is rotatably arranged in the housing 1, and the upper end of the input shaft 3 penetrates the housing 1, the upper end of the input shaft 3 is connected with a power source, and the upper part of the input shaft 3 is sequentially provided with a first driving gear 7, a second driving gear 8 and a third driving gear 9 from top to bottom; an output shaft 2 is rotatably arranged in the housing 1, the input shaft 3 and the output shaft 2 are arranged in parallel, the lower end of the output shaft 2 penetrates the housing 1, and a driven gear set 6 is slidably arranged on the output shaft 2, the driven gear set 6 comprises a first driven gear 61, a second driven gear 62 and a third driven gear 63 arranged in one piece, the driven gear set 6 is moved from top to bottom by a shift fork, and the first driving gear 7 is engaged with the first driven gear 61, the second driving gear 8 is engaged with the second driven gear 62, and the third driving gear 9 is engaged with the third driven gear 63 in sequence, so as to change the transmission ratio and achieve the purpose of gear shifting, the device has simple structure, can effectively reduce the production cost, greatly improve the maintainability of the device, and reduce the maintenance cost of the device.

[0022] The output shaft 2 is connected with the housing 1, and a skeleton oil seal 10 is arranged at the connection position to enhance the sealing property of the device and prevent lubricating oil from leaking or dust from entering the device.

[0023] The output shaft 2 is rotatably arranged in the housing 1 through a first bearing 4, and the input shaft 3 is rotatably arranged in the housing 1 through a second bearing 5.

[0024] The side surface of the output shaft 2 is provided with a chute distributed along the length direction of the output shaft 2, and the driven gear set 6 is slidably arranged in the chute, so that the driven gear set 6 can slide along the length direction of the output shaft 2 while avoiding relative rotation between the driven gear set 6 and the output shaft 2.

[0025] Working principle

[0026] When gear shifting is needed, the driven gear set 6 is moved by the shift fork to achieve the engagement of the first driving gear 7 with the first driven gear 61, the second driving gear 8 with the second driven gear 62, and the third driving gear 9 with the third driven gear 63 in sequence, so as to change the transmission ratio and achieve the purpose of gear shifting.

[0027] The basic principle and main features of the present application and the advantages of the present application are shown and described above. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0028] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A gearbox, characterized in that, include: case; An input shaft is rotatably mounted inside a housing, with its upper end penetrating the housing. From top to bottom, a first moving gear, a second moving gear, and a third moving gear are sequentially arranged on the upper part of the input shaft. An output shaft is rotatably disposed within a housing, with its lower end penetrating the housing. A driven gear set is slidably disposed on the output shaft, the driven gear set including a first driven gear, a second driven gear, and a third driven gear.

2. The gearbox according to claim 1, characterized in that: The input and output axes are arranged in parallel.

3. A gearbox according to claim 1, characterized in that: The first driven gear, the second driven gear, and the third driven gear are integrated into one unit.

4. A gearbox according to claim 1, characterized in that: The first moving gear is configured to correspond to the first driven gear, the second moving gear is configured to correspond to the second driven gear, and the third moving gear is configured to correspond to the third driven gear.

5. A gearbox according to claim 1, characterized in that: A skeleton oil seal is provided at the connection between the output shaft and the housing.

6. A gearbox according to claim 1, characterized in that: The output shaft is rotatably mounted inside the housing via a first bearing, and the input shaft is rotatably mounted inside the housing via a second bearing.

7. A gearbox according to claim 1, characterized in that: The output shaft has grooves distributed along its length on its side, and the driven gear set is slidably disposed in the grooves.

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