CN218030930U

CN218030930U - Hydraulic transmission device capable of synchronously lifting

Info

Publication number: CN218030930U
Application number: CN202222512011.0U
Authority: CN
Inventors: 陈刚; 江峰
Original assignee: Ningbo Xincan Hydraulic Transmission Co ltd
Current assignee: Ningbo Xincan Hydraulic Transmission Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2022-12-13
Anticipated expiration: 2032-09-21

Abstract

The utility model relates to a hydraulic transmission technical field just discloses a hydraulic transmission who pushes up in step, including oil tank, oil absorption filter, gear pump, check valve one, electromagnetic directional valve, choke valve, flow distributor, hydro-cylinder, check valve two and oil return filter, the oil-out of oil tank has the oil absorption filter through the tube coupling, the oil-out of oil absorption filter has the gear pump through the tube coupling, the output of gear pump has check valve one through the tube coupling. This hydraulic transmission who pushes up in step utilizes flow distributor to shunt the fluid that gets into to fall into the fluid into the four, and send into four hydro-cylinders, realize the synchronous of four hydro-cylinders and push up, simultaneously when fluid flows, filter fluid through oil absorption filter and oil return filter, get rid of the impurity in the fluid, prevent that impurity from forming the jam in pipeline and valve body, avoid impurity to get into in the hydro-cylinder simultaneously, lead to the wearing and tearing of hydro-cylinder to damage, improved the practicality.

Description

Hydraulic transmission device capable of synchronously lifting

Technical Field

The utility model relates to a hydraulic transmission technical field specifically is a hydraulic transmission who pushes away in step.

Background

The hydraulic transmission is a transmission mode which takes liquid as a working medium to carry out energy transmission and control, and a hydraulic transmission technology is adopted on machinery, so that the structure of the machine can be simplified, the quality of the machine is reduced, the material consumption is reduced, the manufacturing cost is reduced, the labor intensity is reduced, and the working efficiency and the working reliability are improved.

A multipoint constant flow synchronous lifting hydraulic transmission device is disclosed by retrieval (CN 104454745B). The single-point lifting hydraulic transmission device comprises a large oil cylinder for lifting heavy objects, an oil return pipe connected with an oil tank is mounted at the bottom of the large oil cylinder, a throttle valve is arranged on the oil return pipe, the large oil cylinder is connected with a plunger type oil pump through an oil inlet pipe and an oil inlet one-way valve only capable of entering the large oil cylinder, a pressure-limiting overflow valve is mounted on the oil inlet pipe between the large oil cylinder and the oil inlet one-way valve, and the bottom of the plunger type oil pump is connected with the oil tank through an oil absorption one-way valve only capable of entering the plunger type oil pump; the plunger type oil pump in each single-point push hydraulic transmission device is driven by the same lever handle fixed at the same fulcrum position. In use, the large oil cylinders can realize synchronous lifting action at the same speed and stroke regardless of the same load of the large oil cylinders.

However, the existing synchronous lifting hydraulic transmission device cannot filter impurities in oil, and although the blockage in the blockage position is extruded and stirred to eliminate the blockage, the impurities flow along with the oil, so that the device is easily damaged, and the practicability is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a hydraulic transmission who pushes away in step to current that proposes in solving above-mentioned background art pushes away hydraulic transmission in step can't filter impurity in the fluid, though implement the extrusion, mix with the plug to in the jam position, in order to eliminate the jam, nevertheless impurity flows along with fluid, causes the damage of device easily, the lower problem of practicality.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hydraulic transmission who pushes up in step, includes the oil tank, the oil-out of oil tank has the oil absorption filter through the tube coupling, the oil-out of oil absorption filter has the gear pump through the tube coupling, the output of gear pump has check valve one through the tube coupling, the oil-out of check valve one has the electromagnetic directional valve through the tube coupling, the upper end of electromagnetic directional valve has the choke valve through the tube coupling, the oil-out of choke valve has flow distributor through the tube coupling, flow distributor's oil-out has the hydro-cylinder through the tube coupling, the oil-out of electromagnetic directional valve has check valve two through the tube coupling, the oil-out of check valve two has the oil return filter through the tube coupling, the oil-out of oil return filter and the right-hand member interconnect of oil tank.

Preferably, the avris of gear pump is provided with the motor, makes things convenient for the drive gear pump to rotate, extracts fluid, carries fluid.

Preferably, a pilot-operated overflow valve and a shock-resistant pressure gauge are respectively installed on a pipeline between the check valve I and the electromagnetic directional valve, so that the detection of an oil pipeline is realized, and the stability of the oil pressure is ensured.

Preferably, a three-way point is arranged between the electromagnetic directional valve and the flow distributor, and the three-way point and the flow distributor are connected with each other through a pipeline.

Preferably, the hydro-cylinder is provided with four, and four the lower extreme of hydro-cylinder passes through pipeline and flow distributor interconnect, four the upper end of hydro-cylinder is established ties each other through the pipeline, just the one end and the shock-resistant manometer interconnect of hydro-cylinder are kept away from to the pipeline, to the synchronous fluid of carrying of four hydro-cylinders, realize the synchronous of four hydro-cylinders and promote.

Preferably, air cleaner and liquid level liquid thermometer are installed respectively to the avris on oil tank surface, conveniently detect the oil tank and look over, have guaranteed transmission system's stability.

Compared with the prior art, the utility model provides a hydraulic transmission who pushes away in step possesses following beneficial effect:

this hydraulic transmission who pushes up in step utilizes flow distributor to shunt the fluid that gets into to fall into the fluid into the four, and send into four hydro-cylinders, realize the synchronous of four hydro-cylinders and push up, simultaneously when fluid flows, filter fluid through oil absorption filter and oil return filter, get rid of the impurity in the fluid, prevent that impurity from forming the jam in pipeline and valve body, avoid impurity to get into in the hydro-cylinder simultaneously, lead to the wearing and tearing of hydro-cylinder to damage, improved the practicality.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. an oil tank; 2. an oil absorption filter; 3. a gear pump; 4. a motor; 5. a one-way valve I; 6. a pilot operated relief valve; 7. a shock-proof pressure gauge; 8. an electromagnetic directional valve; 81. a tee joint point; 9. a throttle valve; 10. a flow distributor; 11. an oil cylinder; 12. a second one-way valve; 13. an oil return filter; 14. an air cleaner; 15. a liquid level liquid thermometer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a hydraulic transmission device capable of being synchronously pushed comprises an oil tank 1, an oil absorption filter 2, a gear pump 3, a one-way valve I5, an electromagnetic directional valve 8, a throttle valve 9, a flow distributor 10, an oil cylinder 11, a one-way valve II 12 and an oil return filter 13, wherein an oil outlet of the oil tank 1 is connected with the oil absorption filter 2 through a pipeline, an oil outlet of the oil absorption filter 2 is connected with the gear pump 3 through a pipeline, a motor 4 is arranged on the side of the gear pump 3, the output end of the gear pump 3 is connected with the one-way valve I5 through a pipeline, a pilot type overflow valve 6 and a shock-resistant pressure gauge 7 are respectively arranged on the pipeline between the one-way valve I5 and the electromagnetic directional valve 8, the oil outlet of the one-way valve I5 is connected with the electromagnetic directional valve 8 through a pipeline, a three-way point 81 is arranged between the electromagnetic directional valve 8 and the flow distributor 10, the three-way point 81 and the flow distributor 10 are mutually connected through a pipeline, the oil pump 3 is used for conveying the oil, the oil is filtered by the oil absorption filter 2, impurities in the oil are removed, the oil cylinder 11 is prevented from entering the oil cylinder 11, the abrasion damage is caused, and the practicability is improved;

the upper end of the electromagnetic directional valve 8 is connected with a throttle valve 9 through a pipeline, the oil outlets of the throttle valve 9 are connected with a flow distributor 10 through a pipeline, the oil outlets of the flow distributor 10 are connected with oil cylinders 11 through pipelines, the oil cylinders 11 are four, the lower ends of the four oil cylinders 11 are connected with the flow distributor 10 through pipelines, the upper ends of the four oil cylinders 11 are connected in series through pipelines, one ends of the oil cylinders 11 far away from the pipelines are connected with a shock-proof pressure gauge 7, the oil outlets of the electromagnetic directional valve 8 are connected with a check valve II 12 through pipelines, the oil outlets of the check valve II 12 are connected with an oil return filter 13, the oil outlets of the oil return filter 13 are connected with the right end of the oil tank 1, an air filter 14 and a liquid level liquid thermometer 15 are installed on the side of the surface of the oil tank 1 respectively, the flow distributor 10 is used for shunting the entering oil, the oil is divided into four parts and is sent into the four oil cylinders 11, synchronous lifting of the four oil cylinders 11 is achieved, meanwhile, the oil return pipelines are controlled through the check valve II 12, and the oil return filter 13 is used for filtering, and the oil is guaranteed, and impurities are prevented from entering the oil tank 1.

The working principle is as follows: at first, drive gear pump 3 through motor 4 and rotate, thereby extract the fluid in the oil tank 1, send into flow distributor 10 through the pipeline, thereby divide into four with fluid, and send into in four hydro-cylinders 11, realize the synchronous of four hydro-cylinders 11 and carry out the lift, filter fluid through oil absorption filter 2 simultaneously, avoid impurity to get into among the hydro-cylinder 11, the wearing and tearing damage that leads to hydro-cylinder 11, the practicality is improved, and when hydro-cylinder 11 contracts back, fluid flows back through the pipeline, carry out secondary filter through oil return filter 13, filter fluid, avoid adsorbing impurity in the fluid, install air cleaner 14 and liquid level liquid thermometer 15 on oil tank 1, conveniently detect, and avoid external impurity to get into in the oil tank 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hydraulic transmission who pushes up in step, includes oil tank (1), its characterized in that: the oil-out of oil tank (1) has oil absorption filter (2) through the tube coupling, the oil-out of oil absorption filter (2) has gear pump (3) through the tube coupling, the output of gear pump (3) has check valve (5) through the tube coupling, the oil-out of check valve (5) has electromagnetic directional valve (8) through the tube coupling, the upper end of electromagnetic directional valve (8) has choke valve (9) through the tube coupling, the oil-out of choke valve (9) has flow distributor (10) through the tube coupling, the oil-out of flow distributor (10) has hydro-cylinder (11) through the tube coupling, the oil-out of electromagnetic directional valve (8) has check valve two (12) through the tube coupling, the oil-out of check valve two (12) has oil return filter (13) through the tube coupling, the oil-out of oil return filter (13) and the right-hand member interconnect of oil tank (1).

2. The hydraulic transmission device for synchronous lifting according to claim 1, wherein: and a motor (4) is arranged on the side of the gear pump (3).

3. The hydraulic transmission device for synchronous lifting according to claim 1, wherein: and a pilot overflow valve (6) and a shock-proof pressure gauge (7) are respectively arranged on a pipeline between the one-way valve I (5) and the electromagnetic directional valve (8).

4. The hydraulic transmission device for synchronous lifting according to claim 1, wherein: a three-way point (81) is arranged between the electromagnetic directional valve (8) and the flow distributor (10), and the three-way point (81) is connected with the flow distributor (10) through a pipeline.

5. The hydraulic transmission device for synchronous lifting according to claim 1, wherein: the oil cylinder (11) is provided with four oil cylinders, the lower ends of the oil cylinders (11) are connected with the flow distributor (10) through pipelines, the upper ends of the oil cylinders (11) are connected in series through pipelines, and one ends, away from the oil cylinders (11), of the pipelines are connected with the shock-resistant pressure gauge (7) through pipelines.

6. The hydraulic transmission device for synchronous lifting according to claim 1, wherein: and an air filter (14) and a liquid level liquid thermometer (15) are respectively arranged on the side of the surface of the oil tank (1).