Multi-way valve operating mechanism of tractor

Abstract

The utility model relates to the technical field of multi-way valves, in particular to a tractor multi-way valve control mechanism which comprises a soft operation portion, the soft operation portion comprises a plurality of output flexible shafts and lifting flexible shafts, axes are arranged in the output flexible shafts and the lifting flexible shafts in a sliding mode, the axes are connected with a multi-way valve, and the soft operation portion is operated. The output flexible shaft drives the multi-way valve to act, and input and output of hydraulic oil are achieved. The soft operation part is operated to drive the multi-way valve to act through the lifting soft shaft, so that the lifting arm moves up and down; the adjusting plate is exposed outside the cab, an operating handle is arranged outside the cab, use is more convenient, and people can stand outside to operate assembly and disassembly of the agricultural implement; the output control handle, the lifting control handle and the valve element of the five-way valve body are flexibly connected through the axis, and installation is easy and convenient. The operation is flexible; by means of the mode, the efficiency of mounting and dismounting of the agricultural implement is greatly improved, one person can easily complete mounting and dismounting, and safety accidents are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to multiway valve technical field especially is a tractor multiway valve operating mechanism. BACKGROUND

[0002] With the attention of the state to the agriculture and animal husbandry, the vigorous support to the agricultural machinery industry, especially the subsidy of the large horse power tractor is increased year by year, and the application of the large horse power tractor has the trend of increasing year by year.

[0003] The multiway reversing valve for tractor with the patent number CN202310941467.5 sets the connected bridge valve body, the bridge oil port is arranged in the bridge valve body, the total oil inlet, the middle through unloading oil inlet and the middle through unloading oil outlet of each reversing valve and the bridge oil port are sequentially connected;When each reversing valve is in the middle position, the oil source can be provided for the other valve groups of the main machine hydraulic system, which not only can prevent the static settlement of the lifting mechanism, improve the operation comfort and controllability, but also when the system pressure is overpressure, the spool automatically returns to the middle unloading state, which can reduce the energy consumption and protect the equipment safety, and the descent of other accessories can also be realized without power, which improves the safety and is convenient for maintenance. But the multiway reversing valve uses hard connection, and the multiway valve operation mostly uses pull rod ball head connection, which is complicated to install and heavy to operate. UTILITARY MODEL

[0004] The main purpose of the utility model is to provide a tractor multiway valve operating mechanism to solve the problems in the related art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a tractor multiway valve operating mechanism is provided, which comprises a support part and a multiway valve installed on one side of the support part, and further comprises: a soft operation part, the soft operation part comprises a plurality of output soft shafts and a lifting soft shaft, shafts are slidably arranged in the output soft shafts and the lifting soft shaft, the shafts are connected with the multiway valve, the soft operation part is operated, the multiway valve is driven by the output soft shaft to realize the input and output of hydraulic oil, the soft operation part is operated, the multiway valve is driven by the lifting soft shaft to realize the up and down movement of the lifting arm.

[0006] Further, the soft operation part further comprises a handle mounting base, a plurality of output handles, a lifting handle and a lifting soft shaft mounting bracket, the handle mounting base is fixedly installed in the tractor cab, and the lifting soft shaft mounting bracket is fixedly connected with the tractor body.

[0007] Further, the output handles are rotatably arranged on the handle mounting base, and the bottom of the output handle is fixedly connected with one end of the shaft in the output soft shaft.

[0008] Further, the lifting soft shaft is fixed on the lifting soft shaft mounting support, the lifting handle is arranged on the top of the lifting soft shaft and is rotatably connected with the tractor body, and one end of the lifting handle is fixedly connected with the shaft center in the lifting soft shaft.

[0009] Further, the support part comprises a connecting group and a bracket group, the connecting group comprises a rotating shaft, a conversion rocker arm and a connecting rod, and the bracket group comprises an adjusting bracket and a multi-way valve mounting support.

[0010] Further, the adjusting bracket and the multi-way valve mounting support are fixedly mounted on the tractor body, the other ends of the output soft shaft and the lifting soft shaft are fixedly connected with the adjusting bracket, the rotating shaft is rotatably arranged on the side of the multi-way valve mounting support, one end of the conversion rocker arm is rotatably connected with the rotating shaft, the other end of the conversion rocker arm is rotatably connected with one end of the connecting rod, and the other ends of the connecting rod are fixedly connected with the shaft centers in the output soft shaft and the lifting soft shaft.

[0011] Further, the multi-way valve comprises a valve body group and a handle group, the valve body group comprises a plurality of valve spools and a five-way valve body, and the handle group comprises a plurality of wear-resistant sleeves and a lifting external handle.

[0012] Further, the five-way valve body is fixedly arranged on the multi-way valve mounting support, the valve spools are slidably arranged in the five-way valve body and are fixedly connected with the shaft centers in the output soft shaft and the lifting soft shaft, the wear-resistant sleeves are fixedly arranged at the connecting positions of the rotating shaft and the conversion rocker arm, and the lifting external handle is rotatably connected with the five-way valve body.

[0013] Compared with the prior art, the utility model has the advantages of the following:

[0014] The utility model discloses a multi-way valve operating mechanism all adopts soft connection, further increases life, and two wear-resistant sleeves are added between each rocker arm and rotating shaft to reduce resistance, and the utility model discloses more smooth and more labor-saving to use, and the adjusting plate is exposed outside the cab, and the adjustment is more convenient, and installation is simple, and the cab outside also has operating handle, and it is more convenient to use, and a person can operate the installation and dismounting of agricultural implement outside, and the valve spool of output operating handle, lifting operating handle and five-way valve body realizes soft connection through the shaft center, and installation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole schematic view of the utility model;

[0016] Figure 2 It is the multi-way valve structure schematic view of the utility model.

[0017] Reference signs:

[0018] 1. Operating handle mounting base; 2. Output operating handle; 3. Lifting operating handle; 4. Output flexible shaft; 5. Lifting flexible shaft; 6. Lifting flexible shaft mounting bracket; 7. Rotary shaft; 8. Conversion rocker arm; 9. Connecting rod; 10. Adjusting bracket; 11. Multi-way valve mounting bracket; 12. Wear-resistant sleeve; 13. Lifting external operating handle; 14. Valve core; 15. Five-way valve body. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] This embodiment provides a multi-way valve control mechanism for a tractor, including a bracket and a multi-way valve mounted on one side of the bracket, and further including: a soft operating part, which includes a plurality of output flexible shafts 4 and lifting flexible shafts 5. Each of the output flexible shafts 4 and lifting flexible shafts 5 has a slidable shaft, and the shaft is connected to the multi-way valve. Operating the soft operating part drives the multi-way valve to move through the output flexible shafts 4, thereby realizing the input and output of hydraulic oil; operating the soft operating part drives the multi-way valve to move through the lifting flexible shafts 5, thereby realizing the up and down movement of the lifting arm.

[0021] like Figure 1 As shown, the soft control unit also includes a control handle mounting base 1, several output control handles 2, a lifting control handle 3, and a lifting flexible shaft mounting bracket 6. The control handle mounting base 1 is fixedly installed in the tractor cab, and the lifting flexible shaft mounting bracket 6 is fixedly connected to the tractor body.

[0022] The output control handles 2 are all rotatably mounted on the control handle mounting base 1, and the bottom of the output control handles 2 are fixedly connected to one end of the shaft inside the output flexible shaft 4.

[0023] The lifting flexible shaft 5 is fixedly mounted on the lifting flexible shaft mounting bracket 6. The lifting control handle 3 is located on the top of the lifting flexible shaft 5 and is rotatably connected to the tractor body. The lifting control handle 3 is fixedly connected to one end of the shaft inside the lifting flexible shaft 5.

[0024] like Figure 1 As shown, the support unit includes a connecting assembly and a frame assembly. The connecting assembly includes a rotating shaft 7, a conversion rocker arm 8, and a connecting rod 9. The frame assembly includes an adjusting bracket 10 and a multi-way valve mounting bracket 11.

[0025] The adjusting support 10 and the multi-way valve mounting support 11 are fixedly installed on the tractor body, the other ends of the output soft shaft 4 and the lifting soft shaft 5 are fixedly connected with the adjusting support 10, the rotating shaft 7 is rotatably arranged on the side surface of the multi-way valve mounting support 11, one end of the conversion rocker arm 8 is rotatably connected with the rotating shaft 7, the other end is rotatably connected with one end of the connecting rod 9, and the other end of the connecting rod 9 is fixedly connected with the shaft cores in the output soft shaft 4 and the lifting soft shaft 5.

[0026] As shown in Figure 2 , the multi-way valve comprises a valve body group and a handle group, the valve body group comprises a plurality of valve spools 14 and a five-way valve body 15, and the handle group comprises a plurality of wear-resistant sleeves 12 and a lifting external operating handle 13.

[0027] The lifting external operating handle is located outside the cab, and it is more convenient to adjust.

[0028] The five-way valve body 15 is fixedly arranged on the multi-way valve mounting support 11, the valve spools 14 are slidably arranged in the five-way valve body 15 and fixedly connected with the shaft cores in the output soft shaft 4 and the lifting soft shaft 5, the wear-resistant sleeves 12 are fixedly arranged at the connecting positions of the rotating shaft 7 and the conversion rocker arm 8, and the lifting external operating handle 13 is rotatably connected with the five-way valve body 15.

[0029] The operating mechanism fixes the output soft shaft 4 to the inner baffle of the cab through the operating handle mounting base 1, the other end of the output soft shaft 4 is fixed to the rear lifter shell through the adjusting support 10, the shaft core of the output soft shaft 4 is connected to the valve spool 14 of the five-way valve body 15 through the conversion rocker arm 8 and the connecting rod 9, and the valve spool 14 of the five-way valve body 15 is pushed to move axially in the cab by pushing and pulling the output operating handle 2 in the front and rear directions, so that the input and output of the hydraulic oil are realized. The lifting is realized by pushing and pulling the lifting operating handle 3 in the front and rear directions, driving the shaft core of the lifting soft shaft 5 to move, pushing the lifting valve spool of the five-way valve body 15 to move axially through the conversion rocker arm 8 and the connecting rod 9, inputting and outputting the hydraulic oil to the hydraulic oil cylinder, realizing the up-down movement of the lifting arm, and achieving the installation, disassembly and adjustment of the depth of the agricultural implement working. Another lifting mode is to directly push the lifting external operating handle 13 to realize the axial movement of the lifting valve spool of the five-way valve body 15, input and output the hydraulic oil to the hydraulic oil cylinder, realize the up-down movement of the lifting arm, and achieve the installation, disassembly and adjustment of the depth of the agricultural implement working.

[0030] The output operating handle 2, the lifting operating handle 3 and the valve spool 14 of the five-way valve body 15 are connected through the shaft core, which is soft connection, easy to install and flexible to operate. This mode greatly improves the efficiency of the installation and disassembly of the agricultural implement, and one person can easily complete the installation and disassembly, and the occurrence of safety accidents is reduced.

[0031] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content, or make equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change or modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. A tractor multi-way valve operating mechanism comprising a bracket portion and a multi-way valve mounted to one side of the bracket portion, characterized in that, Also include: The soft operation part includes several output soft shafts (4) and lifting soft shafts (5), the shaft center is arranged in the output soft shaft (4) and the lifting soft shaft (5), the shaft center is connected with the multi-way valve, the soft operation part is operated, the multi-way valve is driven by the output soft shaft (4), and the input and output of hydraulic oil are realized; the soft operation part is operated, the multi-way valve is driven by the lifting soft shaft (5), and the up-down movement of the lifting arm is realized.

2. The tractor multiple valve control mechanism of claim 1 wherein, The soft operation part further includes a handle mounting base (1), a plurality of output handles (2), a lifting handle (3) and a lifting soft shaft mounting bracket (6), the handle mounting base (1) is fixedly installed in the tractor cab, and the lifting soft shaft mounting bracket (6) is fixedly connected with the tractor main body.

3. The tractor multiple valve control mechanism of claim 2 wherein, The output handle (2) is rotatably arranged on the handle mounting base (1), and the bottom of the output handle (2) is fixedly connected with one end of the shaft center in the output soft shaft (4).

4. The tractor multiple valve control mechanism of claim 2 wherein, The lifting soft shaft (5) is fixedly arranged on the lifting soft shaft mounting bracket (6), the lifting handle (3) is arranged on the top of the lifting soft shaft (5), and the lifting handle (3) is rotatably connected with the tractor main body, and the lifting handle (3) is fixedly connected with one end of the shaft center in the lifting soft shaft (5).

5. The tractor multiple valve control mechanism of claim 1 wherein, The bracket part includes a connecting group and a bracket body group, the connecting group includes a rotating shaft (7), a conversion rocker arm (8) and a connecting rod (9), and the bracket body group includes an adjusting bracket (10) and a multi-way valve mounting bracket (11).

6. The tractor multiple valve control mechanism of claim 5 wherein, The adjusting bracket (10) and the multi-way valve mounting bracket (11) are fixedly installed on the tractor main body, one end of the output soft shaft (4) and the lifting soft shaft (5) is fixedly connected with the adjusting bracket (10), the rotating shaft (7) is rotatably arranged on the side of the multi-way valve mounting bracket (11), one end of the conversion rocker arm (8) is rotatably connected with the rotating shaft (7), the other end of the conversion rocker arm (8) is rotatably connected with one end of the connecting rod (9), and the other end of the connecting rod (9) is fixedly connected with the shaft center in the output soft shaft (4) and the lifting soft shaft (5).

7. The tractor multiple valve control mechanism of claim 1 wherein, The multi-way valve includes a valve body group and a handle group, the valve body group includes a plurality of valve cores (14) and a five-way valve body (15), and the handle group includes a plurality of wear-resistant sleeves (12) and a lifting external handle (13).

8. The tractor multiple valve control mechanism of claim 7 wherein, The five-way valve body (15) is fixedly arranged on the multi-way valve mounting bracket (11), the valve core (14) is slidably arranged in the five-way valve body (15), and is fixedly connected with the shaft center in the output soft shaft (4) and the lifting soft shaft (5), the wear-resistant sleeve (12) is fixedly arranged at the connection between the rotating shaft (7) and the conversion rocker arm (8), and the lifting external handle (13) is rotatably connected with the five-way valve body (15).

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