CN220378829U - Tractor speed reducer - Google Patents

Abstract

The utility model belongs to the technical field of transmission devices, in particular to a tractor speed reducing device, which comprises a gear box, wherein a hydraulic motor is fixed at the input end of the gear box, the output end of the hydraulic motor is connected with the input end of the gear box, a spline housing is arranged at the output end of the gear box, the spline housing is sleeved outside a driving shaft of a tractor and is fixedly connected through a spline, two groups of sliding gears are arranged in the gear box, and a shifting fork on the two groups of sliding gears penetrates through the surface of the gear box and extends out of the gear box; the hydraulic motor is matched with the gear box to output new power to the spline housing, so that the tractor has enough traction force, and the tractor can be switched to different gears through the stop lever and is regulated to the neutral gear, and the normal operation of the tractor is not affected by the installation of the tractor.

Description

Tractor speed reducer

Technical Field

The utility model belongs to the technical field of transmission devices, and particularly relates to a tractor speed reducer.

Background

The tractor is a self-propelled power machine for dragging and driving the working machine to complete various mobile operations;

through investigation publication (bulletin) number: CN203098764U discloses a reduction gearbox mechanism of a tractor, in which a technical scheme of ' setting a high-speed gear and a low-speed gear ', wherein the mechanism adopts a duplex sliding gear to move left and right, and a shifting fork is arranged to shift the duplex sliding gear, so that the duplex sliding gear is reliably driven to the high-speed gear or reliably driven to the low-speed gear '; the speed reducing mechanism has the technical effects that the speed reducing mechanism of the tractor is increased from a one-gear type power speed changing mechanism to a two-gear type power speed changing mechanism, so that the speed reducing mechanism of the tractor is more multifunctional and standardized;

however, when the tractor is used in an environment with larger resistance, the maximum torque of the tractor is limited by the torque of the engine and the transmission of the reduction gearbox, and the condition that the maximum torque of the tractor is difficult to meet the working requirement can still occur;

in order to solve the above problems, a tractor speed reducer is proposed in the present application.

Disclosure of Invention

To solve the problems set forth in the background art. The utility model provides a tractor speed reducer which has the characteristics of increasing the output torque of a tractor and being simple to install and detach.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tractor decelerator, includes the gear box, the input department of gear box is fixed with hydraulic motor, hydraulic motor's output with the input of gear box is connected, the spline housing is installed to the output of gear box, the spline housing is established in the drive shaft outside of tractor, and through spline fixed connection, install two sets of sliding gear in the gear box, shift fork on two sets of sliding gear runs through the surface of gear box and extends to outside the gear box.

As the tractor speed reducing device, preferably, the exposed ends of the two shifting forks are respectively and fixedly connected with a gear shifting block A and a gear shifting block B, the surfaces of the gear shifting blocks A are provided with clamping grooves, the gear shifting blocks A and the gear shifting blocks B are identical in structure and are arranged in a central symmetry mode, the outer side wall of the gear box is fixedly provided with a fixing plate with a U-shaped plate-shaped structure, a baffle rod is connected in the fixing plate in a sliding mode, the outer side wall of the baffle rod corresponding to a concave position in the fixing plate is fixedly connected with a shifting rod, and one end of the shifting rod, which is far away from the baffle rod, extends into the clamping grooves.

As the tractor speed reducing device, the diameter of the poking rod is preferably smaller than the width of the clamping groove, and the outer side wall of the poking rod is in contact with one side of the gear poking block A.

As the speed reducer for the tractor, the baffle rod is preferably of an L-shaped rod member structure, and the sliding connection part of the baffle rod and the fixed plate is of a circular section.

Compared with the prior art, the utility model has the beneficial effects that:

the hydraulic motor is matched with the gear box to output new power to the spline housing, so that the tractor has enough traction force, and the tractor can be switched to different gears through the stop lever and is regulated to the neutral gear, and the normal operation of the tractor is not affected by the installation of the tractor.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a left three-dimensional structure of the present utility model;

FIG. 2 is a schematic view of the right three-dimensional structure of the present utility model;

FIG. 3 is a schematic top view of the present utility model;

in the figure: 1. a gear box; 2. a hydraulic motor; 3. a spline housing; 4. a gear shifting block A; 5. a gear shifting block B; 6. a clamping groove; 7. a fixing plate; 8. a gear lever; 9. a toggle rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1;

a tractor speed reducing device comprises a gear box 1;

in this embodiment: through investigation publication (bulletin) number: CN203098764U discloses a reduction gearbox mechanism of a tractor, in which a technical scheme of ' setting a high-speed gear and a low-speed gear ', wherein the mechanism adopts a duplex sliding gear to move left and right, and a shifting fork is arranged to shift the duplex sliding gear, so that the duplex sliding gear is reliably driven to the high-speed gear or reliably driven to the low-speed gear '; the speed reducing mechanism has the technical effects that the speed reducing mechanism of the tractor is increased from a one-gear type power speed changing mechanism to a two-gear type power speed changing mechanism, so that the speed reducing mechanism of the tractor is more multifunctional and standardized;

when the tractor is used in an environment with larger resistance and limited by the torque of the engine and the transmission of the reduction gearbox, or the condition that the maximum torque of the tractor is difficult to meet the working requirement can occur, the problem is obviously the problem which exists in reality and is difficult to solve in combination with the use, and therefore, the following improvement scheme is provided for solving the technical problem.

Further, the method comprises the following steps:

as shown in fig. 1 to 3;

in combination with the above:

the input end of a gear box 1 of the tractor speed reducing device is fixedly provided with a hydraulic motor 2, the output end of the hydraulic motor 2 is connected with the input end of the gear box 1, the output end of the gear box 1 is provided with a spline housing 3, the spline housing 3 is sleeved outside a driving shaft of the tractor and is fixedly connected through a spline, two groups of sliding gears are arranged in the gear box 1, and a shifting fork on the two groups of sliding gears penetrates through the surface of the gear box 1 and extends out of the gear box 1.

In this embodiment: the utility model is arranged at the bottom of a tractor, a driving shaft of the tractor is inserted into a spline housing 3 to pass through, when the original working torque of the tractor is insufficient, a user starts a hydraulic motor 2, the hydraulic motor 2 provides larger torque, the hydraulic motor is decelerated through a gear box 1 to output new power to the position of the spline housing 3, the hydraulic motor 2 temporarily drives the driving shaft of the tractor to ensure that the tractor has enough traction force, the user can determine to adopt the first sliding gear or the second sliding gear to engage and participate in transmission through adjusting two shifting forks, so that different output torques are achieved, and when the sliding gears are adjusted to separate to neutral gear, the spline housing 3 can rotate along with the driving shaft of the tractor, so that the normal operation of the tractor is not influenced by the installation of the utility model.

It should be noted that: existing { publication (announcement) number }: CN203098764U discloses a tractor reduction gearbox mechanism, in which a gearbox 1 proposed in the present document is disclosed, the gearbox 1 in the present document adopts the same technical means in this prior art, and two sets of sliding gears are provided in the gearbox 1.

It should be noted that: the hydraulic motor 2 is connected to an external hydraulic system.

Still further, the method comprises:

in an alternative embodiment, the exposed ends of the two shifting forks are respectively and fixedly connected with a gear shifting block A4 and a gear shifting block B5, the surfaces of the gear shifting blocks A4 are provided with clamping grooves 6, the gear shifting blocks A4 and the gear shifting blocks B5 are identical in structure and are arranged in a central symmetry mode, the outer side wall of the gear box 1 is fixedly provided with a fixing plate 7 of a U-shaped plate-shaped structure, a gear lever 8 is connected in the fixing plate 7 in a sliding mode, the gear lever 8 corresponds to a stirring rod 9 fixedly connected with the outer side wall of a concave portion in the fixing plate 7, and one end, far away from the gear lever 8, of the stirring rod 9 extends into the clamping grooves 6.

In this embodiment: through the design, a user can control the gear condition of the utility model by rotating the gear lever 8, the user rotates the gear lever 8, the gear lever 8 drives the poking rod 9 to poke the gear shifting block A4 and the poking fork on the gear shifting block A4 to move, so that the first sliding gear is meshed or separated, gear switching between neutral gear and high gear is realized, the user pushes the gear lever 8, the poking rod 9 slides into the gear shifting block B5, and then the gear lever 8 is rotated, so that the poking rod 9 drives the gear shifting block B5 and the poking fork on the gear shifting block B5 to move, so that the second sliding gear is meshed or separated, and gear switching between neutral gear and low gear is realized.

Still further, the method comprises:

in an alternative embodiment, the diameter of the tap lever 9 is smaller than the width of the clamping groove 6, and the outer side wall of the tap lever 9 is in contact with one side of the gear shifting block A4.

In this embodiment: through this design, avoid stirring rod 9 rotate the time and the gear shifting block A4 card die, be convenient for stir rod 9 rotation.

Still further, the method comprises:

in an alternative embodiment, the lever 8 is an L-shaped rod structure, and the sliding connection between the lever 8 and the fixing plate 7 is a circular cross section.

In this embodiment: through the design, a user can conveniently hold the gear lever 8 for operation, and the gear lever 8 can slide at the circular section and simultaneously rotate, so that gear switching is realized.

The working principle and the using flow of the utility model are as follows: the utility model is installed at the bottom of the tractor, the driving shaft of the tractor is inserted into the spline housing 3 to pass through, when the original working torque of the tractor is insufficient, a user starts the hydraulic motor 2, the hydraulic motor 2 provides larger torque, the hydraulic motor 1 decelerates to output new power to the position of the spline housing 3, the hydraulic motor 2 temporarily drives the driving shaft of the tractor to enable the tractor to have enough traction force, the user can determine to engage and participate in transmission by adopting a first sliding gear or a second sliding gear through adjusting two shifting forks, when in gear adjustment, the user rotates the gear lever 8, the gear lever 8 drives the shifting lever 9 to shift the shifting forks on the gear shifting block A4 and the gear shifting block A4 to move, so that the first sliding gear is engaged or separated to realize gear switching between neutral and high gear, the user pushes the gear lever 8 to slide the shifting lever 9 into the gear shifting block B5, and then rotates the gear lever 8 to drive the shifting forks on the gear shifting block B5, so that the second sliding gear is engaged or separated, thereby realizing gear switching between neutral and low gear, when the output torque of the tractor is not enough to realize normal operation, the utility model can be installed, the transmission torque is not normally, the utility model can be adjusted, the transmission torque of the tractor is not normally is influenced when the transmission is not easy to install, the transmission torque is not easy, the transmission is easy to install, the utility model is convenient to install, when the transmission is easy to install, when the transmission is not has normal, and has normal operation, when the transmission has normal operation, and can

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (4)

1. A tractor reduction gear, comprising a gear box (1), characterized in that: the hydraulic motor (2) is fixed at the input end of the gear box (1), the output end of the hydraulic motor (2) is connected with the input end of the gear box (1), the spline housing (3) is installed at the output end of the gear box (1), the spline housing (3) is sleeved outside a driving shaft of a tractor and is fixedly connected through a spline, two groups of sliding gears are installed in the gear box (1), and a shifting fork on the two groups of sliding gears penetrates through the surface of the gear box (1) and extends out of the gear box (1).

2. The tractor speed reduction device according to claim 1, wherein: two shift fork exposed ends are respectively fixedly connected with a gear shifting block A (4) and a gear shifting block B (5), a clamping groove (6) is formed in the surface of the gear shifting block A (4), the gear shifting block A (4) and the gear shifting block B (5) are identical in structure and are arranged in a central symmetry mode, a fixing plate (7) of a U-shaped plate-shaped structure is fixed on the outer side wall of the gear box (1), a gear lever (8) is connected in the fixing plate (7) in a sliding mode, the gear lever (8) corresponds to a stirring rod (9) fixedly connected with the outer side wall of a concave portion in the fixing plate (7), and one end, away from the gear lever (8), of the stirring rod (9) extends into the clamping groove (6).

3. The tractor speed reduction device according to claim 2, wherein: the diameter of the poking rod (9) is smaller than the width of the clamping groove (6), and the outer side wall of the poking rod (9) is in contact with one side of the gear poking block A (4).

4. The tractor speed reduction device according to claim 2, wherein: the baffle rod (8) is of an L-shaped rod piece structure, and the sliding connection part of the baffle rod (8) and the fixed plate (7) is of a circular section.