Steering hydraulic overflow valve of harvester

Abstract

The utility model provides a harvester steering hydraulic overflow valve which comprises a valve body, a three-position five-way reversing valve, a three-position four-way reversing valve and a two-position two-way reversing valve are sequentially and fixedly installed in the valve body from left to right, and the top of the three-position five-way reversing valve and the top of the three-position four-way reversing valve are each provided with two first execution unit interfaces. The three-position five-way reversing valve, the three-position four-way reversing valve, the two-position two-way reversing valve, the hydraulic one-way valve, the overflow valve and other valves are integrated in the valve body, synchronous control over lifting and steering of the header can be completed, independent control over lifting and steering of the header can be achieved, the occupied space of the valves is reduced, and the cost is reduced. And the mounting disc can be clamped and fixed through a mounting plate, a limiting plate and a clamping groove, so that the electromagnetic valve is convenient to mount, meanwhile, the direction of the valve body can be adjusted through the action of a bulge and a groove, and the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of harvester steering hydraulic overflow valve, concretely is a kind of harvester steering hydraulic overflow valve. BACKGROUND

[0002] Harvester is integrated crop harvesting machinery, can complete harvesting, threshing in one time, and grain is concentrated to storage bin, then grain is transported to transport car by conveyer belt, and the header of harvester is controlled by hydraulic system.Nowadays, the hydraulic valve of combine harvester is controlled separately by multiple valves when controlling header and harvester steering, which is not only inconvenient to operate, but also occupies large space, and is not easy to install, and it is time-consuming and laborious to maintain and maintain.

[0003] Therefore, the utility model provides a kind of harvester steering hydraulic overflow valve. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a kind of harvester steering hydraulic overflow valve to solve the problems raised in the above background art, multiple valves are integrated in the inside of valve body, can complete the synchronous control of the lifting and steering of header, can also separately control the lifting and steering of header, reduce the space occupied by multiple valves, and the electromagnetic valve is conveniently installed by mounting mechanism, and the orientation of valve body can also be adjusted, with high practicability.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a kind of harvester steering hydraulic overflow valve, including valve body, the inside of the valve body is sequentially fixed from left to right Three-position five-way directional control valve, three-position four-way directional control valve and two-position two-way directional control valve, the top of the three-position five-way directional control valve and three-position four-way directional control valve is provided with two first execution unit interfaces, the top of the two-position two-way directional control valve is provided with second execution unit interface, the front side of the valve body is provided with mounting mechanism by mounting disc, the mounting mechanism includes mounting plate, the side wall on the top end of the mounting plate is provided with installation slot, the inside of the installation slot is movably installed with limiting plate by sliding groove, the inside of the bottom end of the limiting plate and the bottom end of the installation slot are provided with clamping groove, the mounting disc is installed in the inside of clamping groove, the inner wall of the clamping groove is provided with protrusion, and the circular outer wall of the mounting disc is provided with recess at equal intervals.

[0006] Further, the first execution unit interface on the top of the three-position five-way directional control valve is fixedly installed with hydraulic one-way valve, and the hydraulic one-way valve is arranged in the inside of valve body.

[0007] Further, the bottom of the three-position five-way reversing valve is sequentially provided with a first oil outlet, a first oil inlet and a fifth port from left to right, and the bottom ends of the first oil outlet and the first oil inlet are arranged outside the valve body.

[0008] Further, the bottom of the three-position four-way reversing valve is respectively provided with a second oil inlet and a second oil outlet at two sides, the second oil inlet is fixedly communicated with the fifth port through a connecting pipe, and the bottom end of the second oil outlet is fixedly arranged outside the valve body.

[0009] Further, the bottom of the two-position two-way reversing valve is provided with a third oil inlet, the first oil inlet, the second oil inlet and the third oil inlet are communicated with each other through fixed pipes, and an overflow valve is fixedly installed on the fixed pipe between the second oil inlet and the third oil inlet.

[0010] Further, one side of the top end of the limiting plate is fixedly provided with a sliding block, the sliding block is limitingly and slidingly installed in the inner portion of the sliding groove, and an adjusting screw rod is rotatably installed in the inner portion of the sliding groove.

[0011] Further, the sliding block is screw-connected and installed on the adjusting screw rod through a screw hole formed in the inner portion of the sliding block, and a fixed knob is fixedly arranged at the bottom of the adjusting screw rod.

[0012] Further, the mounting disc is in the shape of a "T", the convex is clamped in the inner portion of the groove, and a fixed hole is formed at the position of the four corners of the mounting plate.

[0013] The three-position five-way reversing valve, the three-position four-way reversing valve, the two-position two-way reversing valve, the hydraulic one-way valve and the overflow valve are integrated in the inner portion of the valve body, synchronous control of lifting and steering of the header can be realized, the lifting and steering of the header can be separately controlled, the space occupied by the valves is reduced, the mounting disc can be clamped and fixed through the mounting plate, the limiting plate and the clamping groove, the electromagnetic valve is conveniently installed, the orientation of the valve body can be adjusted through the convex and the groove, and the utility model has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure diagram of the harvester steering hydraulic overflow valve;

[0015] Figure 2 It is a valve body structure diagram of the harvester steering hydraulic overflow valve;

[0016] Figure 3 It is a front view sectional view of the harvester steering hydraulic overflow valve;

[0017] Figure 4The utility model discloses a kind of installation plate structure diagram of harvester steering hydraulic overflow valve.

[0018] Figure 5 The utility model discloses a kind of limit plate structure diagram of harvester steering hydraulic overflow valve.

[0019] In the drawing: 1, valve body;2, first execution unit interface;3, second execution unit interface;4, first oil outlet;5, first oil inlet;6, second oil outlet;7, mounting mechanism;8, mounting disc;9, three-position five-way reversing valve;10, hydraulic check valve;11, three-position four-way reversing valve;12, two-position two-way reversing valve;13, overflow valve;14, mounting plate;15, limit plate;16, sliding groove;17, adjusting screw;18, fixed hole;19, sliding block;20, clamping groove. DETAILED DESCRIPTION

[0020] To make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] Please refer to Figures 1 to 5 The utility model provides a kind of technical scheme: a kind of harvester steering hydraulic overflow valve, including valve body 1, the inside of the valve body 1 is sequentially fixed with three-position five-way reversing valve 9, three-position four-way reversing valve 11 and two-position two-way reversing valve 12 from left to right, the top of the three-position five-way reversing valve 9 and three-position four-way reversing valve 11 is all provided with two first execution unit interfaces 2, the top of the two-position two-way reversing valve 12 is provided with second execution unit interface 3, the front side of the valve body 1 is provided with mounting mechanism 7 by mounting disc 8, the mounting mechanism 7 includes mounting plate 14, mounting groove is set on the side wall of the top end of the mounting plate 14, limit plate 15 is movably installed in the inside of the mounting groove by sliding groove 16, the inside of the bottom end of the limit plate 15 and the bottom end of mounting groove are all provided with clamping groove 20, the mounting disc 8 is installed in the inside of clamping groove 20, the inner wall of the clamping groove 20 is provided with protrusion, equidistant recess is set on the circular outer wall of the mounting disc 8, by integrating three-position five-way reversing valve 9, three-position four-way reversing valve 11 and two-position two-way reversing valve 12 in the inside of valve body 1, simultaneous cutting platform lifting and the steering of harvester can be synchronously controlled, so as to reduce the occupied space of multiple valves, and it is convenient to be quickly installed and disassembled to valve body 1 by mounting mechanism 7, limit to mounting disc 8 by the clamping effect of protrusion and recess is convenient, it is convenient to adjust the orientation of valve body 1.

[0022] The first execution unit interface 2 on the top of the three-position five-way reversing valve 9 is fixedly installed with a hydraulic check valve 10, the hydraulic check valve 10 is arranged in the inside of the valve body 1, the bottom of the three-position five-way reversing valve 9 is sequentially provided with a first oil outlet 4, a first oil inlet 5 and a fifth port from left to right, the bottom ends of the first oil outlet 4 and the first oil inlet 5 are arranged outside the valve body 1, the bottom of the three-position four-way reversing valve 11 is respectively provided with a second oil inlet and a second oil outlet 6, the second oil inlet is fixedly communicated with the fifth port through a connecting pipe, the bottom end of the second oil outlet 6 is fixedly arranged outside the valve body 1, the bottom of the two-position two-way reversing valve 12 is provided with a third oil inlet, the first oil inlet 5, the second oil inlet and the third oil inlet are communicated with each other through a fixed pipe, the fixed pipe between the second oil inlet and the third oil inlet is fixedly installed with an overflow valve 13, the lifting of the header of the harvester can be controlled through the three-position five-way reversing valve 9, the steering mechanism of the harvester is communicated with the three-position four-way reversing valve 11, which facilitates the control of the steering primary stroke of the harvester, the overflow valve 13 can be controlled to enable the two-position two-way reversing valve 12, so as to control the steering secondary stroke of the harvester, and the lifting and steering of the header of the harvester can also be controlled through the three-position five-way reversing valve 9, the three-position four-way reversing valve 11 and the two-position two-way reversing valve 12 at the same time, which has high practicability.

[0023] In the embodiment, the top end of the limiting plate 15 is fixedly provided with a sliding block 19, the sliding block 19 is slidingly installed in the inside of the sliding groove 16, an adjusting screw 17 is rotatably installed in the inside of the sliding groove 16, the sliding block 19 is screw-connected and installed on the adjusting screw 17 through a screw hole formed in the inside of the sliding block 19, a fixed knob is fixedly arranged at the bottom of the adjusting screw 17, the mounting disc 8 is in the shape of "T", the protrusion is clamped in the inside of the groove, a fixed hole 18 is formed at the four corner positions of the mounting plate 14, the limiting plate 15 is lowered by the adjusting screw 17, the mounting disc 8 is clamped and fixed by the clamping groove 20, the mounting disc 8 is limited by clamping the protrusion in the corresponding groove, the mounting disc 8 and the valve body 1 can be rotationally adjusted, and the orientation of the valve body 1 can be adjusted according to the installation position.

[0024] When the harvesting machine steering hydraulic overflow valve is used, the mounting plate 14 can be fixedly mounted at the mounting position on the harvesting machine by mounting bolts or the like in the fixed hole 18, the adjusting screw 17 is driven to rotate in the sliding groove 16 by the knob, the sliding block 19 is driven to slide in the sliding groove 16 by the adjusting screw 17, the limiting plate 15 is driven to move to one side by the sliding block 19, the valve body 1 is mounted on one side of the mounting plate 14 through the mounting disc 8, one end of the mounting disc 8 is mounted in the clamping groove 20, the valve body 1 is rotated, the orientation of the valve body 1 is adjusted, the knob and the adjusting screw 17 are reversely rotated, the sliding block 19 and the limiting plate 15 are driven to move close to the mounting disc 8 by the adjusting screw 17, and the mounting disc 8 is fixed, the protrusion is clamped in the corresponding groove, the mounting disc 8 is limited, the stability of the valve body 1 is improved, the electromagnetic valve is conveniently mounted, the practicability is high, the first execution unit interface 2 at the top of the three-position five-way directional valve 9 is fixedly communicated with the inlet and outlet of the header lifting oil cylinder through an oil pipe, the first execution unit interface 2 at the top of the three-position four-way directional valve 11 is fixedly communicated with the inlet and outlet of the first stroke of the harvesting machine steering oil cylinder through an oil pipe, the second execution unit interface 3 is fixedly communicated with the inlet and outlet of the second stroke of the harvesting machine steering oil cylinder through an oil pipe, the first oil outlet 4, the second oil outlet 6 and the first oil inlet 5 are fixedly communicated with the oil supply equipment, the three-position five-way directional valve 9, the three-position four-way directional valve 11, the two-position two-way directional valve 12, the hydraulic one-way valve 10, the overflow valve 13 and the like are integrated in the valve body 1, the synchronous control of the lifting and steering of the header can be completed, the lifting and steering of the header can be separately controlled, and the occupied space of the valves is reduced.

[0025] In addition, it should be understood that, although the present specification 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 combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A harvesting machine steering hydraulic relief valve comprising a valve body (1), characterized in that, The inside of the valve body (1) is sequentially fixedly provided with a three-position five-way directional valve (9), a three-position four-way directional valve (11) and a two-position two-way directional valve (12) from left to right, the top of the three-position five-way directional valve (9) and the three-position four-way directional valve (11) is provided with two first execution unit interfaces (2), the top of the two-position two-way directional valve (12) is provided with a second execution unit interface (3), the front side of the valve body (1) is provided with a mounting mechanism (7) through a mounting disc (8), the mounting mechanism (7) comprises a mounting plate (14), a mounting groove is formed in the side wall of the top end of the mounting plate (14), a limiting plate (15) is movably mounted in the mounting groove through a sliding groove (16), a clamping groove (20) is formed in the bottom end of the limiting plate (15) and the bottom end of the mounting groove, the mounting disc (8) is mounted in the clamping groove (20), a protrusion is arranged on the inner wall of the clamping groove (20), and a recess is equidistantly formed in the circular outer wall of the mounting disc (8).

2. A harvesting machine steering hydraulic relief valve according to claim 1, characterised in that: The top of the three-position five-way directional valve (9) is fixedly provided with a hydraulic one-way valve (10) on the first execution unit interface (2), and the hydraulic one-way valve (10) is arranged in the valve body (1).

3. A harvester steering hydraulic relief valve according to claim 2, characterised in that: The bottom of the three-position five-way directional valve (9) is sequentially provided with a first oil outlet (4), a first oil inlet (5) and a fifth port from left to right, and the bottom ends of the first oil outlet (4) and the first oil inlet (5) are arranged on the outside of the valve body (1).

4. A harvester steering hydraulic relief valve according to claim 3, characterised in that: The bottom of the three-position four-way directional valve (11) is provided with a second oil inlet and a second oil outlet (6) on both sides, the second oil inlet is fixedly communicated with the fifth port through a connecting pipe, and the bottom end of the second oil outlet (6) is fixedly arranged on the outside of the valve body (1).

5. A harvester steering hydraulic relief valve according to claim 4 wherein: The bottom of the two-position two-way directional valve (12) is provided with a third oil inlet, the first oil inlet (5), the second oil inlet and the third oil inlet are communicated with each other through fixed pipes, and an overflow valve (13) is fixedly mounted on the fixed pipe between the second oil inlet and the third oil inlet.

6. A harvesting machine steering hydraulic relief valve according to claim 1, characterised in that: One side of the top end of the limiting plate (15) is fixedly provided with a sliding block (19), the sliding block (19) is limitingly and slidingly mounted in the sliding groove (16), and an adjusting screw rod (17) is rotatably mounted in the sliding groove (16).

7. A harvester steering hydraulic relief valve according to claim 6 wherein: The sliding block (19) is screw-connected and mounted on the adjusting screw rod (17) through a screw hole formed in the inside of the sliding block (19), and a fixed knob is fixedly arranged at the bottom of the adjusting screw rod (17).

8. A harvester steering hydraulic relief valve according to claim 7, characterised in that: The mounting disc (8) is in the shape of a "T", the protrusion is clamped in the recess, and a fixed hole (18) is formed at the position of the four corners of the mounting plate (14).

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