CN219345409U

CN219345409U - Hydraulic gear shifting mechanism

Info

Publication number: CN219345409U
Application number: CN202320631480.6U
Authority: CN
Inventors: 黄泽伟
Original assignee: Chuzhou Yueda Industrial Co ltd
Current assignee: Chuzhou Yueda Industrial Co ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-07-14
Anticipated expiration: 2033-03-28

Abstract

The utility model discloses a hydraulic gear shifting mechanism, which comprises a shell, an end cover connected to the shell, and a transmission rod rotatably arranged on the end cover, wherein one end of the transmission rod penetrates through and extends into the shell, and one end of the transmission rod positioned in the shell is fixedly connected with a swing rod; the novel winding reel comprises a transmission rod, and is characterized by further comprising a rocker arm sleeved at one end of the transmission rod, wherein the rocker arm rotates to drive the transmission rod to rotate and drive the swing rod to swing, a deflector rod is arranged on the swing rod, a winding reel part is arranged in a shell, and one end of the deflector rod is inserted into a groove formed in the winding reel part. According to the hydraulic gear shifting mechanism provided by the utility model, the swash plate can be driven to move through the change of the piston position of the servo valve, namely, the speed change and the reversing of the continuously variable transmission are realized, the gear shifting force can be greatly reduced, the adjustment can be conveniently carried out when the hydraulic gear shifting mechanism faces a heavy agricultural machine main body, namely, the operation portability can be integrally improved, and the transmission efficiency is improved.

Description

Hydraulic gear shifting mechanism

Technical Field

The utility model relates to the technical field of gearboxes, in particular to a hydraulic gear shifting mechanism.

Background

In recent years, along with the rapid development of the agricultural machinery industry, the matched components in the agricultural machinery industry are rapidly developed, and the agricultural machinery is also rapidly developed for the matching of the stepless speed changing box, which can be called as an important accessory of the agricultural machinery, the existing agricultural machinery stepless speed changing box generally performs gear shifting and reversing through a variable bevel stepless speed changer, and the stepless speed changing box omits complex and heavy gear combination variable speed transmission and only uses two groups of pulleys for variable speed transmission. Therefore, the agricultural machinery is favored.

The prior art has the following defects: and for the driven inclined-plane type stepless speed changer, the pull rod directly toggles the inclined plate to realize the speed change and reversing when in speed change and reversing, and the displacement of the stepless speed changer required by the increase of the integral weight of the agricultural machine is also increased along with the increase of the displacement of the stepless speed changer, the force for toggling the inclined plate is also increased more and more, the operation difficulty is increased, and the power transmission is influenced.

Disclosure of Invention

The utility model aims to provide a hydraulic gear shifting mechanism so as to solve the defects in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

the hydraulic gear shifting mechanism comprises a shell, an end cover connected to the shell, and a transmission rod rotatably arranged on the end cover, wherein one end of the transmission rod penetrates through and extends into the shell, and one end of the transmission rod positioned in the shell is fixedly connected with a swing rod;

the swing arm is sleeved at one end of the transmission rod, and the swing arm rotates to drive the transmission rod to rotate and drive the swing rod to swing.

In a further preferable scheme of the embodiment of the utility model, a deflector rod is arranged on the swing rod, a winding reel component is arranged in the shell, and one end of the deflector rod is inserted into a groove arranged on the winding reel component.

In a further preferable scheme of the embodiment of the utility model, a poking hole is formed at one end of the rocker arm, which is far away from the transmission rod.

In a further preferable scheme of the embodiment of the utility model, the end cover is further provided with a limit screw, the rocker arm is provided with an arc groove, and one end of the limit screw protrudes to the end cover and is inserted into the arc groove.

In a further preferred embodiment of the present utility model, a servo valve piston is further provided in the housing, and the spool member is provided inside the servo valve piston.

In a further preferred embodiment of the present utility model, the transmission rod is formed in a non-circular polygon protruding to a section of the housing.

In a further preferable scheme of the embodiment of the utility model, a movable rod is rotatably arranged on the side edge of the transmission rod, and a parallel rod parallel to the side edge of the transmission rod is rotatably arranged on the movable rod.

In the technical scheme, the hydraulic gear shifting mechanism provided by the utility model has the beneficial effects that:

according to the utility model, through the arranged transmission rod and the swing rod, the swing arm is sleeved at one end of the transmission rod, namely, the transmission rod and the swing rod can be controlled to rotate through the rotation of the external control swing arm, the internal oil path can be controlled to move, the deflector rod arranged on the swing rod can be driven to rotate, the winding reel part of the winding reel can be easily changed, the trend of the internal oil path is changed, then the servo valve piston is pushed by utilizing the oil pressure in the shell (1), the swash plate can be driven to move through the change of the position of the servo valve piston, namely, the speed change and the reversing of the continuously variable transmission are realized, the gear shifting force can be greatly reduced, the adjustment can be conveniently carried out in the face of a heavy agricultural machine main body, namely, the operation portability can be integrally improved, and the transmission efficiency is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the disclosed technology.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of the interior of the housing according to the embodiment of the present utility model;

fig. 3 is a schematic structural view of a rocker arm and a transmission rod according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of an internal structure of a servo valve piston according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a servo valve piston and rocker arm according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a housing and a rocker arm according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of a movable rod and a parallel rod according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a housing; 11. an end cap; 2. a rocker arm; 201. an arc-shaped groove; 3. a transmission rod; 201. a locking groove; 31. a torque spring; 32. swing rod; 33. a deflector rod; 4. a spool member; 5. a sealing sleeve; 6. a limit screw; 7. a servo valve piston; 41. a return spring; 301. hole pulling; 81. a movable rod; 811. parallel bars.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Referring to fig. 1 to 7, a hydraulic gear shifting mechanism includes a housing 1 and an end cover 11 connected to the housing 1, and is characterized in that: the device also comprises a transmission rod 3 rotatably arranged on the end cover 11, one end of the transmission rod 3 penetrates through and extends into the shell 1, and one end of the transmission rod 3 positioned in the shell 1 is fixedly connected with a swing rod 32;

the swing arm 2 is sleeved at one end of the transmission rod 3, and the swing arm 2 rotates to drive the transmission rod 3 to rotate and drive the swing rod 32 to swing. According to the utility model, through the transmission rod 3 and the swinging rod 32, the swinging rod 2 is sleeved at one end of the transmission rod 3, namely, the transmission rod 3 and the swinging rod 32 can be controlled to rotate by externally controlling the swinging rod 2 to rotate, the internal oil path can be controlled to move, the deflector rod 33 arranged on the swinging rod 32 can be driven to rotate, the winding reel part 4 of the winding reel part is changed, so that the trend of the internal oil path is changed, then the servo valve piston 7 is pushed by utilizing the oil pressure in the shell 1, and finally, the swash plate can be driven to move by the change of the position of the servo valve piston 7, namely, the speed change and the reversing of the continuously variable transmission are realized, the gear change force can be greatly reduced, the adjustment can be conveniently carried out in the face of a heavy agricultural machine main body, namely, the operation portability can be integrally improved, and the transmission efficiency is improved.

In a further embodiment of the present utility model, the lever 33 is disposed on the swing link 32, the spool member 4 is disposed in the housing 1, and one end of the lever 33 is inserted into a groove disposed on the spool member 4. According to the utility model, through the deflector rod 33, the force of the rotation of the swing rod 32 can be transmitted to the winding reel part 4 through the deflector rod 33, and then the power of the swing rod 32 can be transmitted to the winding reel part 4.

In the further embodiment provided by the utility model, the end of the rocker arm 2 far away from the transmission rod 3 is provided with the poking hole 301, specifically, the end of the rocker arm 2 far away from the transmission rod 3 is provided with the poking hole 301, namely, a pull rod in the prior art can be inserted into the poking hole 301, and then the poking hole 301 is pulled, so that the rocker arm 2 rotates along the position sleeved on the transmission rod 3, namely, the transmission rod 33 can be driven to rotate relatively easily, namely, the poking rod 33 arranged on the swing rod 32 can be driven to rotate, the winding reel part 4 of the winding reel part is changed, the trend of an internal oil way is changed, then the oil pressure in the shell 1 is utilized to push the servo valve piston 7, finally, the swashplate movement can be driven by the change of the position of the servo valve piston 7, namely, the speed change and the reversing of the continuously variable transmission can be realized, the gear change force can be greatly reduced, the adjustment can be facilitated in the face of a heavier agricultural machine main body, namely, the operation portability can be integrally improved, and the transmission efficiency is improved.

In a further embodiment of the present utility model, the end cover 11 is further provided with a limit screw 6, the rocker arm 2 is provided with an arc groove 201, and one end of the limit screw 6 protrudes into the end cover 11 and is inserted into the arc groove 201. Through arc wall 201 and end cover 11 that set up, can make when adjusting rocking arm 2, can carry out spacingly through the setting of arc wall 201 and end cover 11, promptly, can be convenient for rocking arm 2's rotation, be convenient for the switching-over or shift gears.

In a further provided embodiment of the utility model, a servo valve piston 7 is also provided in the housing 1, and the spool part 4 is provided inside the servo valve piston 7. The shift lever 33 arranged on the swing rod 32 can be driven to rotate, the winding reel part 4 is changed, so that the trend of an internal oil way is changed, then the oil pressure in the shell 1 is utilized to push the servo valve piston 7, finally, the swash plate can be driven to move through the change of the position of the servo valve piston 7, namely, the speed change and the reversing of the continuously variable transmission are realized, and the winding reel part 4 arranged in the embodiment can slide in the piston under the action of the shift lever 33, so that the trend of the oil way is changed, and then the piston can be pushed to move. The spool member 4 and the direction of the oil passage described in this embodiment are common knowledge and conventional technical means for those skilled in the art, and are not described in detail,

in a further embodiment of the utility model, the transmission rod 3 is formed in a non-circular polygon protruding to a section of the housing 1.

In a further embodiment of the utility model, the movable rod 81 is rotatably arranged on the side of the transmission rod 3, and the movable rod 81 is rotatably provided with a parallel rod 811 parallel to the side of the transmission rod 3.

In the present utility model, the torque spring 31 is provided outside the transmission rod 3 in a sleeved manner, and the purpose of the present utility model is to be able to return the transmission rod 3 after the transmission rod 3 rotates.

According to the utility model, the movable rod 81 is rotatably arranged on the side edge of the transmission rod 3, the parallel rod 811 which is parallel to the side edge of the transmission rod 3 is rotatably arranged on the movable rod 81, the parallel rod 811 is arranged at a place which is in contact with the rocker arm 2, then when the rocker arm 2 drives the transmission rod 3 to rotate, the parallel rod 811 can firstly contact with the parallel rod 811, then the parallel rod 811 can be abutted against the inner wall of the rocker arm 2, namely, the rocker arm 2 and the transmission rod 3 can be prevented from being directly contacted, namely, the stability between the two can be improved, and the parallel rod 811 is movably arranged, namely, the rotating force of the rocker arm 2 can be buffered, so that the rotation is more stable.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a hydraulic pressure gearshift, includes casing (1) and connects end cover (11) on casing (1), its characterized in that: the novel energy-saving device is characterized by further comprising a transmission rod (3) rotatably arranged on the end cover (11), wherein one end of the transmission rod (3) penetrates through and extends into the shell (1), and one end of the transmission rod (3) positioned in the shell (1) is fixedly connected with a swing rod (32);

the swing arm (2) is sleeved at one end of the transmission rod (3), and the swing arm (2) rotates to drive the transmission rod (3) to rotate and drive the swing rod (32) to swing.

2. A hydraulic gear shifting mechanism according to claim 1, characterized in that the rocker (32) is provided with a deflector rod (33), the housing (1) is provided with a spool part (4), and one end of the deflector rod (33) is inserted into a groove provided on the spool part (4).

3. A hydraulic shifting mechanism according to claim 1, characterized in that the end of the rocker arm (2) remote from the transmission rod (3) is provided with a poking hole (301).

4. The hydraulic gear shifting mechanism according to claim 1, wherein the end cover (11) is further provided with a limit screw (6), the rocker arm (2) is provided with an arc-shaped groove (201), and one end of the limit screw (6) protrudes into the end cover (11) and is inserted into the arc-shaped groove (201).

5. A hydraulic shift mechanism according to claim 2, characterized in that a servo valve piston (7) is further provided in the housing (1), and that the spool part (4) is provided inside the servo valve piston (7).

6. A hydraulic shift mechanism according to claim 1, characterized in that the transmission rod (3) is formed as a non-circular polygon protruding to a section of the housing (1).

7. A hydraulic shift mechanism according to claim 1, characterized in that the drive rod (3) is provided with a movable rod (81) in rotation on its side, and that the movable rod (81) is provided with a parallel rod (811) in rotation parallel to the side of the drive rod (3).