CN219827909U

CN219827909U - Multi-way valve operating mechanism for tractor

Info

Publication number: CN219827909U
Application number: CN202320392385.5U
Authority: CN
Inventors: 古光亮; 王建富; 刘召栋; 任光庆
Original assignee: Weichai Lovol Intelligent Agricultural Technology Co Ltd
Current assignee: Weichai Lovol Intelligent Agricultural Technology Co Ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-10-13
Anticipated expiration: 2033-03-06

Abstract

The utility model relates to the technical field of control of multi-way valves of tractors, in particular to a multi-way valve operating mechanism for a tractor, which comprises a mounting plate; the side plate is fixedly connected to the mounting plate; the support frame is arranged at the upper part of the side plate through a left-right rotating mechanism; the middle block is arranged on the supporting frame through a front-back rotating mechanism; one end of the operating rod is connected with the middle block; the locking device is arranged on the mounting plate and used for locking the middle block at a normal working position; the stretching mechanism is respectively connected with the middle block and the locking device and is used for driving the locking device to lock the middle block. The utility model has simple structure and comfortable operation, the operating lever can rotate in eight directions of 45 degrees of front, back, left, right, left, front, right, left, rear, left, right, rear, and the operating direction is more, and the direction of the operating lever can be locked through the locking device, so that the multi-way valve is fixed in a certain working state in an operating way.

Description

Multi-way valve operating mechanism for tractor

Technical Field

The utility model relates to the technical field of control of multi-way valves of tractors, in particular to a multi-way valve operating mechanism for a tractor.

Background

In agricultural production, the tractor is matched with agricultural tools to complete farmland operations such as farmland tillage, harrowing, seeding, pesticide spraying, fertilization, harvesting and the like, so the tractor is an indispensable power machine for realizing agricultural mechanization.

The multi-way valve of the tractor is a hydraulic oil distribution valve for providing hydraulic pressure for the agricultural implements attached to the tractor. In the prior art, a tractor needs to frequently operate an operating lever in the using process, the long-time operation of the operating lever can lead the arm of a driver to be tired, the efficiency is reduced, and the existing multi-way valve operating mechanism can only operate in front and back directions, for example, in the existing patent with the patent number of 202110798449.7, the patent name of a multi-way valve operating mechanism for a storage battery balanced forklift, as a rotating bracket can be connected with a fixed plate welding assembly in a front and back rotating and adjusting manner, a pin shaft is horizontally fixed on the rotating bracket, the root of the operating lever is rotationally sleeved on the pin shaft, the rotating axis of the rotating bracket is parallel to the rotating axis of the operating lever, namely, the rotating direction of the operating lever can only rotate in the front and back directions, and multi-direction rotation cannot be realized, so that the operating direction is less.

Disclosure of Invention

The utility model aims to provide a multiway valve operating mechanism for a tractor, which solves the problems in the prior art.

The technical scheme for solving the technical problems is as follows: a multi-way valve operating mechanism for a tractor comprises a mounting plate fixedly connected with a multi-way valve;

the side plate is fixedly connected to the mounting plate;

the support frame is arranged at the upper part of the side plate through a left-right rotating mechanism;

the middle block is arranged on the support frame through a front-back rotating mechanism;

one end of the control rod is connected with the middle block;

the locking device is arranged on the mounting plate and used for locking the middle block at a normal working position;

the stretching mechanism is respectively connected with the middle block and the locking device and is used for driving the locking device to lock the middle block.

The beneficial effects of the utility model are as follows: the utility model has simple structure and comfortable operation, the operating lever is connected with the middle block, the middle block can rotate back and forth on the supporting frame, i.e. the operating lever can rotate in the back and forth direction; the support frame can be rotated left and right on the side plate, namely the control lever can be rotated in the left and right direction, through the cooperation of the left and right rotating mechanism and the front and back rotating mechanism, the control lever can be rotated in eight directions of 45 degrees of front, back, left, right, front, right, left, back, left, right, back, the control direction is many, and the direction of the control lever can be locked through the locking device, so that the multi-way valve is fixed in a certain working state in an operating mode.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the left-right rotating mechanism comprises a shaft sleeve horizontally fixed on the upper portion of the side plate, a rotating shaft is fixedly arranged on the supporting frame, and the rotating shaft is rotatably arranged in the shaft sleeve.

The beneficial effects of adopting the further scheme are as follows: the rotation axis on the support frame is rotatably connected with the shaft sleeve on the side plate, so that the support frame can axially rotate with the axis of the rotation axis, and the support frame can rotate in the left-right direction.

Further, one end of the rotating shaft is fixedly connected with the supporting frame, and the other end of the rotating shaft penetrates through and stretches out of the shaft sleeve to be sleeved with a clamp spring.

The beneficial effects of adopting the further scheme are as follows: the arrangement of the clamp spring can limit the movement of the rotating shaft in the axial direction, and the rotating shaft is prevented from being separated from the shaft sleeve.

Further, a flat washer is sleeved on the rotating shaft, the flat washer is arranged between the clamp spring and the end part of the shaft sleeve, and two side surfaces of the flat washer are respectively connected with the clamp spring and the end surface of the shaft sleeve.

The beneficial effects of adopting the further scheme are as follows: the arrangement of the flat gasket can reduce friction between the clamp spring and the end part of the shaft sleeve, so that abrasion between the clamp spring and the end part of the shaft sleeve is reduced.

Further, the front-back rotating mechanism comprises a bolt and a nut, the support frame is U-shaped, the middle block is arranged between two side walls of the support frame, the screw rod end of the bolt sequentially penetrates through and extends out of one side wall of the support frame, the middle block and the other side wall of the support frame and then is in threaded connection with the nut, and the middle block is in rotary connection with the bolt.

The beneficial effects of adopting the further scheme are as follows: the middle block is rotatably arranged on the bolt, so that the middle block can rotate in the front-back direction, and the operating lever can rotate in the front-back direction.

Further, elastic washers are arranged between the head of the bolt and the side wall of the support frame and between the nut and the other side wall of the support frame.

The beneficial effects of adopting the further scheme are as follows: the arrangement of the elastic washer can ensure the stability of connection between the bolt and the side wall of the support frame.

Further, locking means includes the lock plunger, fixed being equipped with on the mounting panel vertical guide cylinder that sets up, the top of guide cylinder upwards passes the mounting panel, the lock plunger slides from top to bottom and establishes in the guide cylinder, just the top end both ends of lock plunger are followed respectively the top end both ends of guide cylinder stretch out, stretching mechanism's one end with the upper portion fixed connection of lock plunger, the top of intermediate piece is equipped with supplies the top male locked groove of lock plunger.

The beneficial effects of adopting the further scheme are as follows: the lock bolt can move back and forth along the axial direction of the guide cylinder under the action of the stretching mechanism, so that the intermediate block is locked under the action of the stretching mechanism.

Further, a horizontally extending pull rod is arranged on the side wall of the upper portion of the lock bolt, one end of the pull rod is fixedly connected with the side wall of the lock bolt, and one end of the stretching mechanism is connected with the pull rod.

The beneficial effects of adopting the further scheme are as follows: the setting of pull rod is convenient for the setting of stretching mechanism.

Further, the stretching mechanism is a stretching spring.

The beneficial effects of adopting the further scheme are as follows: wide source and low cost.

Further, a threaded hole is formed in the middle block, an external thread in threaded connection with the threaded hole is formed in one end of the operating rod, and a handball is arranged at the other end of the operating rod.

The beneficial effects of adopting the further scheme are as follows: the arrangement of the threaded holes facilitates connection of the operating rod and the middle block, and the arrangement of the handball ensures comfort of use of operators.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a side view of the present utility model;

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

in the drawings, the list of components represented by the various numbers is as follows:

1. a mounting plate; 2. a side plate; 3. a support frame; 4. a middle block; 5. a joystick; 6. a shaft sleeve; 7. a rotating shaft; 8. clamping springs; 9. a flat gasket; 10. a bolt; 11. a nut; 12. a spring washer; 13. a lock bolt; 14. a guide cylinder; 15. a locking groove; 16. a pull rod; 17. a tension spring; 18. a handball.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1 to 3, an embodiment of the present utility model includes a mounting plate 1 for fixed connection with a multiway valve;

the side plate 2 is fixedly connected to the mounting plate 1, and the side plate 2 and the mounting plate 1 are connected in an integrated and fixedly connected mode;

a support frame 3, wherein the support frame 3 is installed on the upper part of the side plate 2 through a left-right rotation mechanism;

the middle block 4 is arranged on the support frame 3 through a front-back rotating mechanism;

the control rod 5, one end of the control rod 5 is connected with the middle block 4, specifically, a threaded hole is formed in the middle block 4, one end of the control rod 5 is provided with an external thread which is in threaded connection with the threaded hole, the other end of the control rod 5 is provided with a handball 18, specifically, the other end of the control rod 5 is also provided with an external thread, the handball 18 is provided with a thread groove, the handball 18 and the control rod 5 are in detachable fixed connection through threads, the threaded hole is convenient for connecting the control rod 5 with the middle block 4, and the arrangement of the handball 18 ensures the comfort of the use of a user;

in addition, in other embodiments of the present utility model, a connecting plate is fixedly connected to an end of the lever 5 away from the handball 18, the lever 5 and the connecting plate may be fixedly connected by welding, and the connecting plate may be detachably and fixedly connected to the middle block 4 by a threaded connection member such as a screw, so as to facilitate installation and detachment.

A locking device mounted on the mounting plate 1 for locking the intermediate block 4 in a normal operating position;

the stretching mechanism is connected with the middle block 4 and the locking device respectively and is used for driving the locking device to lock the middle block 4, and preferably, the stretching mechanism is a stretching spring 17 and has the advantages of wide sources and low cost.

In this embodiment, the left-right rotation mechanism includes the level to be fixed in axle sleeve 6 on curb plate 2 upper portion, fixed being equipped with axis of rotation 7 on the support frame 3, axis of rotation 7 rotates to be established in the axle sleeve 6, in order to avoid axis of rotation 7 take place to remove in the axle sleeve 6, the outer wall of axis of rotation 7 with sliding butt between the inner wall of axle sleeve 6, further, the one end of axis of rotation 7 with support frame 3 fixed connection, the other end of axis of rotation 7 passes and stretches out the cover is equipped with jump ring 8 behind the axle sleeve 6. The rotation shaft 7 on the support frame 3 is rotatably connected with the shaft sleeve 6 on the side plate 2, so that the support frame 3 can axially rotate along the axis of the rotation shaft 7, the support frame 3 can rotate in the left-right direction, the movement of the rotation shaft 7 in the axial direction can be limited by the arrangement of the clamp spring 8, and the rotation shaft 7 is prevented from being separated from the shaft sleeve 6.

Further preferably, a flat washer 9 is sleeved on the rotating shaft 7, the flat washer 9 is arranged between the clamp spring 8 and the end part of the shaft sleeve 6, two side surfaces of the flat washer 9 are respectively connected with the clamp spring 8 and the end surface of the shaft sleeve 6, and friction between the clamp spring 8 and the end part of the shaft sleeve 6 can be reduced due to the arrangement of the flat washer 9, so that abrasion between the clamp spring 8 and the end part of the shaft sleeve 6 is reduced.

In this embodiment, the front-rear rotation mechanism includes a bolt 10 and a nut 11, the support frame 3 is U-shaped, the rotation shaft 7 is disposed on one side of the bottom wall of the support frame 3 away from two side walls, one end of the rotation shaft 7 is fixedly connected with the bottom wall of the support frame 3, specifically, the front-rear rotation mechanism can be integrally fixedly connected or detachably fixedly connected by means of welding, the middle block 4 is disposed between two side walls of the support frame 3, a screw end of the bolt 10 sequentially penetrates through and extends out of one side wall of the support frame 3, the middle block 4 and the other side wall of the support frame 3, then is in threaded connection with the nut 11, the middle block 4 is rotationally connected with the bolt 10, and the middle block 4 is rotationally disposed on the bolt 10, so that the middle block 4 can rotate in the front-rear direction, and further the operating lever 5 can rotate in the front-rear direction. In this embodiment, in order to reduce friction loss between the intermediate block 4 and the bolt 10, a section of the bolt 10 far away from the head portion thereof is provided with external threads to facilitate threaded connection with the nut 11, other sections are smooth surfaces, and at least one end of the intermediate block 4 sleeved with the intermediate block is a smooth surface.

In the preferred embodiment of the present embodiment, a spring washer 12 is disposed between the head of the bolt 10 and the side wall of the support frame 3 and between the nut 11 and the other side wall of the support frame 3, and the spring washer 12 is disposed to ensure the stability of the connection between the bolt 10 and the side wall of the support frame 3.

In the embodiment of the utility model, the locking device comprises a lock bolt 13, a guide cylinder 14 which is vertically arranged is fixedly arranged on the mounting plate 1, the top end of the guide cylinder 14 passes through the mounting plate 1 upwards, the lock bolt 13 is arranged in the guide cylinder 14 in a sliding way up and down, the top end and the bottom end of the lock bolt 13 respectively extend out of the top end and the bottom end of the guide cylinder 14, one end of the stretching mechanism is fixedly connected with the upper part of the lock bolt 13, a locking groove 15 for inserting the top end of the lock bolt 13 is formed in the top of the middle block 4, and the lock bolt 13 can move back and forth along the axial direction of the guide cylinder 14 under the action of the stretching mechanism, so that the middle block 4 is locked under the action of the stretching mechanism.

The upper side wall of the lock plunger 13 is provided with a horizontally extending pull rod 16, one end of the pull rod 16 is fixedly connected with the side wall of the lock plunger 13, one end of the stretching mechanism is connected with the pull rod 16, and the setting of the pull rod 16 is convenient for the setting of the stretching mechanism.

Control principle: the lever 5 and the intermediate block 4 are rotatable around the bolt 10 in the front-rear direction; when the left-right direction movement is performed, the control rod 5, the middle block 4 and the support frame 3 rotate around the shaft sleeve 6 on the side plate 2; the two directions can cooperate at the same time, thereby meeting the action in any direction. The lock bolt 13 is controlled by a tension spring 17, and the lock bolt 13 can be ejected from the guide cylinder 14 to realize locking, so that the multiway valve is operated and fixed in a certain working state.

The embodiment has simple structure and comfortable operation, the operating rod 5 is connected with the middle block 4, the middle block 4 can rotate back and forth left on the supporting frame 3, namely, the operating rod 5 can rotate in the back and forth direction; the support frame 3 can rotate left and right on the side plate 2, namely the control rod 5 can rotate in the left and right direction, through the cooperation of the left and right rotating mechanism and the front and back rotating mechanism, the control rod 5 can rotate in eight directions of 45 degrees of front, back, left, right, front, right, left, back, the control direction is many, and the direction of the control rod 5 can be locked through the locking device, so that the multi-way valve is fixed in a certain working state in an operating mode.

In the description of the present utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the system or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The multiway valve operating mechanism for the tractor is characterized by comprising a mounting plate (1) fixedly connected with the multiway valve;

the side plate (2) is fixedly connected to the mounting plate (1);

the support frame (3) is arranged at the upper part of the side plate (2) through a left-right rotating mechanism;

the middle block (4) is arranged on the supporting frame (3) through a front-back rotating mechanism;

a control lever (5), wherein one end of the control lever (5) is connected with the middle block (4);

the locking device is arranged on the mounting plate (1) and used for locking the middle block (4) at a normal working position;

the stretching mechanism is respectively connected with the middle block (4) and the locking device and is used for driving the locking device to lock the middle block (4);

the left-right rotating mechanism comprises a shaft sleeve (6) horizontally fixed at the upper part of the side plate (2), a rotating shaft (7) is fixedly arranged on the supporting frame (3), and the rotating shaft (7) is rotatably arranged in the shaft sleeve (6);

the front-back rotating mechanism comprises a bolt (10) and a nut (11), the supporting frame (3) is U-shaped, the middle block (4) is arranged between two side walls of the supporting frame (3), the screw rod end of the bolt (10) sequentially penetrates through and stretches out of one side wall of the supporting frame (3), the middle block (4) and the other side wall of the supporting frame (3) are connected with the nut (11) in a threaded mode, and the middle block (4) is connected with the bolt (10) in a rotating mode.

2. The multiway valve operating mechanism for a tractor according to claim 1, wherein one end of the rotating shaft (7) is fixedly connected with the supporting frame (3), and a clamp spring (8) is sleeved on the other end of the rotating shaft (7) after penetrating through and extending out of the shaft sleeve (6).

3. The multiway valve operating mechanism for a tractor according to claim 2, wherein a flat washer (9) is sleeved on the rotating shaft (7), the flat washer (9) is arranged between the snap spring (8) and the end part of the shaft sleeve (6), and two side surfaces of the flat washer (9) are respectively connected with the snap spring (8) and the end surface of the shaft sleeve (6).

4. The multiway valve operating mechanism for tractors according to claim 1, wherein elastic washers (12) are provided between the head of the bolt (10) and the side wall of the support frame (3) and between the nut (11) and the other side wall of the support frame (3).

5. The multiway valve operating mechanism for a tractor according to any one of claims 1 to 4, wherein the locking device comprises a lock bolt (13), a guide cylinder (14) which is vertically arranged is fixedly arranged on the mounting plate (1), the top end of the guide cylinder (14) passes through the mounting plate (1) upwards, the lock bolt (13) is arranged in the guide cylinder (14) in a sliding manner up and down, the top end and the bottom end of the lock bolt (13) respectively extend out of the top end and the bottom end of the guide cylinder (14), one end of the stretching mechanism is fixedly connected with the upper part of the lock bolt (13), and a lock groove (15) for inserting the top end of the lock bolt (13) is formed in the top of the middle block (4).

6. The multiway valve operating mechanism for a tractor according to claim 5, wherein a horizontally extending pull rod (16) is arranged on the upper side wall of the lock plunger (13), one end of the pull rod (16) is fixedly connected with the side wall of the lock plunger (13), and one end of the pull mechanism is connected with the pull rod (16).

7. A multiway valve operating mechanism for a tractor, according to any of claims 1 to 4, wherein said tension mechanism is a tension spring (17).

8. A multi-way valve operating mechanism for a tractor according to any one of claims 1 to 4, characterized in that a threaded hole is provided in the middle block (4), one end of the operating lever (5) is provided with an external thread which is in threaded connection with the threaded hole, and the other end of the operating lever (5) is provided with a handball (18).