Hanging type hydraulic oil tank of tractor

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a tractor hanging type hydraulic oil tank which comprises an oil tank body, the oil tank body comprises an oil filling cavity and an oil return cavity, and a lifting system oil suction filter is installed on one side, close to the edge of the bottom, of the oil filling cavity in a penetrating mode. A steering system oil suction filter is installed on the other side, close to the edge of the bottom, of the oil filling cavity in a penetrating mode, a total oil return filter is installed on one side, close to the edge of the bottom, of the oil return cavity in a penetrating mode, and a large-volume integrated oil tank is arranged, so that the heat dissipation problem of a hydraulic system is greatly solved, and the temperature of the hydraulic system is effectively controlled; an important link in the design of a hydraulic system is an effective means for reducing the failure rate of the hydraulic system, a built-in oil suction and return filter is arranged, a filter element is drawn out through a self-sealing valve, oil cannot flow out, and the problems of oil loss, waste and pollution caused in the process of replacing the filter element of an oil filter are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field especially is a tractor hanging type hydraulic oil tank. BACKGROUND

[0002] The traditional hydraulic oil tank includes the oil tank for the lifting system and the oil tank for the steering system, and the two oil tanks supply oil for the lifting system and the steering system respectively, so that the spatial position layout of the two oil tanks is relatively complex, and due to the space limitation, the volume of the oil tank is relatively small, which easily leads to the problems of insufficient oil absorption of the hydraulic system and too fast oil circulation to be unable to stand and radiate, resulting in the problems of excessive temperature of the oil tank, increased leakage, damaged rubber components, serious cavitation phenomenon and shortened service life of the hydraulic oil, and the hydraulic system fails.

[0003] Secondly, the filter element in the oil filter needs to be replaced in time to guarantee the use function of the oil filter, and the oil loss, waste and pollution problems are easily caused in the process of replacing the filter element of the oil filter, and therefore, the tractor hanging type hydraulic oil tank is provided. SUMMARY

[0004] The main purpose of the utility model is to provide a tractor hanging type hydraulic oil tank to solve the problems of small volume of the oil tank and oil loss, waste and pollution caused by replacement of the filter element in the background art.

[0005] In order to achieve the above purpose, according to one aspect of the utility model, a tractor hanging type hydraulic oil tank is provided, which comprises an oil tank body, the oil tank body comprises a refueling cavity and an oil return cavity, a lifting system oil suction filter is installed through the side of the refueling cavity close to the bottom edge, a steering system oil suction filter is installed through the other side of the refueling cavity close to the bottom edge, and a total oil return filter is installed through the side of the oil return cavity close to the bottom edge, the lifting system oil suction filter, the steering system oil suction filter and the total oil return filter are all filters with the same structure, a self-sealing valve, a filter element and a sealing ring are arranged in the total oil return filter shell, and the self-sealing valve is used to prevent oil loss in the process of replacing the filter element.

[0006] As a preferred technical scheme of the utility model, a partition plate is fixedly arranged in the oil tank body, the partition plate divides the oil tank body into the refueling cavity and the oil return cavity, a circular hole is formed in the middle of the partition plate, and triangular holes are formed at both ends of the bottom of the partition plate.

[0007] As a preferred technical scheme of the utility model, a refueling pipe is installed through the middle of the top of the oil tank body close to the edge, a refueling pipe breather is arranged at one end of the refueling pipe, and a low oil level oil quantity sensor is installed through the middle of the top of the refueling cavity.

[0008] As a preferred technical scheme of the utility model: the oil suction filter of the lifting system is fixedly connected with the oil suction pipe of the lifting system, and the oil suction filter of the steering system is fixedly connected with the oil suction pipe of the steering system.

[0009] As a preferred technical scheme of the utility model: the oil return pipe is fixedly installed on the side wall of the total oil return filter.

[0010] As a preferred technical scheme of the utility model: the filters in the oil suction filter of the lifting system, the oil suction filter of the steering system and the total oil return filter are all built-in.

[0011] As a preferred technical scheme of the utility model: the total oil return filter further comprises a shell, a plurality of circular oil outlet holes are arranged in an annular array on one end of the shell close to the output port, two annular grooves are arranged on one side of the oil outlet holes, the grooves are clamped with sealing washers, a sealing ring A is fixedly installed in the one end of the shell close to the output port, a deflation hole is arranged in the middle of the other end of the shell, a deflation screw is threadedly installed in the deflation hole, an input port is arranged through the shell directly below the deflation hole, a bottom cover is threadedly installed on the other end of the shell, the bottom cover is elastically connected with a filter element holder through a spring, a sealing ring B is slidably installed on the filter element holder, the sealing ring B is connected with one end of the filter element, the filter element is slidably installed in the shell, a sealing washer is arranged on one side of the filter element, the sealing washer is located between the filter element and a self-sealing valve, and the self-sealing valve is located at one end of the output port.

[0012] As a preferred technical scheme of the utility model: the self-sealing valve comprises a self-sealing spring and a self-sealing valve core, a plurality of rectangular holes are arranged in an annular array in the middle of the self-sealing valve core, the self-sealing valve core is elastically connected with the sealing ring A through the self-sealing spring, one end of the self-sealing valve core is connected with the filter element, the sealing washer is located at the connection position of the filter element and the self-sealing valve core, and the inner diameters of the sealing washers are greater than the outer diameters of the filter element and the self-sealing valve core, respectively, and the filter element and the self-sealing valve core are slidably installed in the sealing washers.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the tractor-mounted hydraulic oil tank, the large-capacity integrated oil tank is arranged, which greatly improves the heat dissipation problem of the hydraulic system, effectively controls the temperature of the hydraulic system, is an important link in the design of the hydraulic system and is an effective means to reduce the failure rate of the hydraulic system.

[0015] In the tractor-mounted hydraulic oil tank, the built-in oil suction and return filter is arranged, the filter element is extracted through the self-sealing valve, and the oil liquid cannot flow out, so that the problems of oil liquid loss and pollution caused in the process of replacing the filter element of the oil filter are effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of the overall structure of the oil tank body in the preferred embodiment of the present application;

[0017] Figure 2 is a schematic view of the top view structure of the oil tank body in the preferred embodiment of the present application;

[0018] Figure 3 is a schematic view of the sectional structure of the oil tank body in the preferred embodiment of the present application;

[0019] Figure 4 is a schematic view of the sectional structure of the filter in the preferred embodiment of the present application;

[0020] Figure 5 is a schematic view of the self-sealing valve structure in the preferred embodiment of the present application;

[0021] Figure 6 is a schematic view of the filter opening and groove structure in the preferred embodiment of the present application;

[0022] Figure 7 is a schematic view of the filter element pressing seat structure in the preferred embodiment of the present application;

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] 1, oil tank body; 2, oil filling cavity; 3, oil return cavity; 4, lifting system oil suction filter; 5, filter element; 6, total oil return filter; 7, steering system oil suction filter; 8, oil return pipe; 9, steering system oil suction pipe; 10, oil filling pipe; 11, oil filling pipe breather; 12, low oil level oil quantity sensor; 13, lifting system oil suction pipe; 14, partition plate; 15, round hole; 16, self-sealing valve; 17, self-sealing spring; 18, self-sealing valve; 19, sealing washer; 20, oil outlet hole; 21, groove; 22, sealing ring A; 23, air release hole; 24, air release screw; 25, bottom cover; 26, filter element pressing seat; 27, sealing ring B; 28, rectangular hole. DETAILED DESCRIPTION

[0025] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the present application will be described in detail below in combination with the drawings and preferred embodiments.

[0026] Please refer to Figures 1-7As shown, the embodiment aims to provide a tractor-mounted hydraulic oil tank, which comprises an oil tank body 1, the oil tank body 1 comprises a refueling cavity 2 and an oil return cavity 3, a lifting system oil suction filter 4 is installed through the side near the bottom edge of the refueling cavity 2, a steering system oil suction filter 7 is installed through the other side near the bottom edge of the refueling cavity 2, a total oil return filter 6 is installed through the side near the bottom edge of the oil return cavity 3, the lifting system oil suction filter 4, the steering system oil suction filter 7 and the total oil return filter 6 are all filters with the same structure, a self-sealing valve 16, a filter element 5 and a sealing washer 19 are arranged in the shell of the total oil return filter 6, and the self-sealing valve 16 is used to prevent oil loss during replacement of the filter element 5.

[0027] A partition plate 14 is fixedly arranged in the oil tank body 1, the partition plate 14 divides the oil tank body 1 into the refueling cavity 2 and the oil return cavity 3, a circular hole 15 is formed in the middle of the partition plate 14, triangular holes are formed at both ends of the bottom of the partition plate 14, the partition plate 14 and the circular hole 15 prolong the circulation path of the oil, and the heat dissipation effect of the oil is improved.

[0028] A refueling pipe 10 is installed through the middle of the top edge of the oil tank body 1, a refueling pipe breather 11 is arranged at one end of the refueling pipe 10, the refueling pipe breather 11 can control the pressure difference between the inside and outside of the oil tank by automatically adjusting the in and out of gas, thereby ensuring the safety of the oil tank body 1, and a low oil level oil quantity sensor 12 is installed through the middle of the top of the refueling cavity 2, so that the oil quantity in the oil tank body 1 can be monitored by the low oil level oil quantity sensor 12.

[0029] One end of the lifting system oil suction filter 4 is fixedly connected with a lifting system oil suction pipe 13, and one end of the steering system oil suction filter 7 is fixedly connected with a steering system oil suction pipe 9.

[0030] The total oil return filter 6 is fixedly installed with an oil return pipe 8, the oil return pipe 8 returns excess oil to the oil return cavity 3, which helps to maintain the pressure stability of the fuel system.

[0031] The filters in the lifting system oil suction filter 4, the steering system oil suction filter 7 and the total oil return filter 6 are all built-in.

[0032] The total oil return filter 6 further comprises a shell, a plurality of circular oil outlet holes 20 are arranged in an annular array at one end of the shell close to the output port, the annular array design can improve the oil outlet efficiency of the output port of the total oil return filter 6, two annular grooves 21 are arranged on one side of the oil outlet hole 20, the two grooves 21 are clamped with the sealing gasket 19, and a sealing ring A 22 is fixedly installed in the one end of the shell close to the output port, a gas release hole 23 is arranged in the middle of the other end of the shell, a gas release screw 24 is screwed in the gas release hole 23, an input port is arranged through the shell directly below the gas release hole 23, a bottom cover 25 is screwed on the other end of the shell, the bottom cover 25 is elastically connected with a filter element pressure seat 26 through a spring, a sealing ring B 27 is slidably installed on the filter element pressure seat 26, the sealing ring B 27 is connected with one end of the filter element 5, the filter element 5 is slidably installed in the shell, the sealing gasket 19 is arranged on one side of the filter element 5, the sealing gasket 19 is located between the filter element 5 and the self-sealing valve 16, and the self-sealing valve 16 is located at one end of the output port, and one end of the self-sealing valve 16 is elastically connected with the sealing ring A 22.

[0033] The self-sealing valve 16 comprises a self-sealing spring 17 and a self-sealing valve 18, a plurality of rectangular holes 28 are arranged in an annular array in the middle of the self-sealing valve 18, the self-sealing valve 18 is elastically connected with the sealing ring A 22 through the self-sealing spring 17, one end of the self-sealing valve 18 is connected with the filter element 5, and the sealing gasket 19 is located at the connection position of the filter element 5 and the self-sealing valve 18, and the inner diameters of the sealing gaskets 19 are greater than the outer diameters of the filter element 5 and the self-sealing valve 18, respectively, and the connection ends of the filter element 5 and the self-sealing valve 18 are slidably installed in the sealing gasket 19, the filter element pressure seat 26 and the filter element 5 are moved outward by adjusting the bottom cover 25, the self-sealing valve 18 is pushed under the action of the self-sealing spring 17, until the self-sealing valve 18 coincides with the sealing gasket 19, and the rectangular holes 28 are completely covered, the self-sealing valve 18 is closed, and the filter element 5 is extracted and the oil liquid cannot flow out.

[0034] In specific use, the oil liquid is injected into the oil tank body 1 through the oil filling pipe 10, and then the oil liquid is sucked out of the oil tank body 1 through the lifting system oil suction pipe 13 and the steering system oil suction pipe 9, the oil liquid is filtered to remove impurities when passing through the lifting system oil suction filter 4 and the steering system oil suction filter 7, the filtered oil liquid is transported to each fuel system through the oil pipe, and the excess oil liquid returns to the total oil return filter 6 through the oil return pipe 8, and then the oil liquid is injected into the oil return cavity 3 after being filtered.

[0035] The above are only the preferred embodiments of the present application, and are not intended to limit the present application in any form, although the present application has been disclosed as above with the preferred embodiments, however, it is not intended to limit the present application, any person skilled in the art, without departing from the technical scheme of the present application, can make some changes or modifications to the above disclosed technical content as equivalent embodiments, but as long as it does not deviate from the technical scheme of the present application, according to the technical essence of the present application, any modification, equivalent change and modification of the above embodiments are still within the scope of the technical scheme of the present application.

Claims

1. A tractor-mounted hydraulic oil tank, comprising a tank body (1), characterized in that: The oil tank body (1) includes an oil filling chamber (2) and an oil return chamber (3). A lifting system suction filter (4) is installed through one side of the oil filling chamber (2) near the bottom edge. A steering system suction filter (7) is installed through the other side of the oil filling chamber (2) near the bottom edge. A main return filter (6) is installed through one side of the oil return chamber (3) near the bottom edge. The lifting system suction filter (4), the steering system suction filter (7), and the main return filter (6) are all filters with the same structure. The main return filter (6) has at least a self-sealing valve (16). The self-sealing valve (16) is used to prevent oil loss during filter element replacement (5).

2. The tractor-mounted hydraulic oil tank according to claim 1, characterized in that: A partition (14) is fixedly installed inside the oil tank body (1). The partition (14) divides the oil tank body (1) into an oil filling chamber (2) and an oil return chamber (3). A round hole (15) is opened in the middle of the partition (14), and triangular holes are opened at both ends of the bottom of the partition (14).

3. The tractor-mounted hydraulic oil tank according to claim 1, characterized in that: A refueling pipe (10) is installed through the middle of the top edge of the fuel tank body (1). A refueling pipe breather (11) is provided at one end of the refueling pipe (10). A low oil level sensor (12) is installed through the middle of the top of the refueling chamber (2).

4. The tractor-mounted hydraulic oil tank according to claim 1, characterized in that: One end of the lifting system oil suction filter (4) is fixedly connected to the lifting system oil suction pipe (13), and one end of the steering system oil suction filter (7) is fixedly connected to the steering system oil suction pipe (9).

5. The tractor-mounted hydraulic oil tank according to claim 1, characterized in that: The return oil filter (6) has a return oil pipe (8) fixedly installed on its side wall.

6. The tractor-mounted hydraulic oil tank according to claim 1, characterized in that: The filters in the lifting system suction filter (4), the steering system suction filter (7), and the main return filter (6) are all built-in.

7. The tractor-mounted hydraulic oil tank according to claim 1, characterized in that: The main return oil filter (6) also includes a housing. At one end of the housing near the outlet, several circular oil outlet holes (20) are arranged in a ring array. Two annular grooves (21) are formed on one side of each oil outlet hole (20). These grooves (21) engage with sealing gaskets (19). A sealing ring A (22) is fixedly installed inside the housing at one end near the outlet. A vent hole (23) is formed in the middle of the other end of the housing. A vent screw (24) is threaded into the vent hole (23). An inlet is formed directly below the vent hole (23) and extends through the housing. The other end is fitted with a bottom cover (25) by a thread. The bottom cover (25) is elastically connected to the filter element pressure seat (26) by a spring. A sealing ring B (27) is slidably installed on the filter element pressure seat (26). The sealing ring B (27) is connected to one end of the filter element (5). The filter element (5) is slidably installed in the housing. A sealing gasket (19) is provided on one side of the filter element (5). The sealing gasket (19) is located between the filter element (5) and the self-sealing valve (16). The self-sealing valve (16) is located at one end of the outlet. One end of the self-sealing valve (16) is elastically connected to the sealing ring A (22).

8. The tractor-mounted hydraulic oil tank according to claim 7, characterized in that: The self-sealing valve (16) includes a self-sealing spring (17) and a self-sealing valve (18). The self-sealing valve (18) has several rectangular holes (28) arranged in a ring array in the middle. The self-sealing valve (18) is elastically connected to the sealing ring A (22) through the self-sealing spring (17). The bottom of the self-sealing valve (18) is connected to one end of the filter element (5). The sealing gasket (19) is located at the connection between the filter element (5) and the self-sealing valve (18). The inner diameter of the sealing gasket (19) is larger than the outer diameter of the filter element (5) and the self-sealing valve (18). The connection end of the filter element (5) and the self-sealing valve (18) is slidably installed in the sealing gasket (19).

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