Gate hydraulic device

Abstract

The utility model relates to the technical field of hydraulic control, in particular to a flashboard hydraulic device. The explosion-proof hole is formed in the disc of the valve core, so that the situation that the valve body is pressed by hydraulic oil when the spring fails is effectively avoided, and the hydraulic oil can slowly flow down from the explosion-proof hole to release pressure, so that a furnace door slowly and automatically descends under the condition of self weight; an operator does not need to climb to a high furnace to process the explosion-proof assembly, so that the danger of climbing is reduced, the service life of the explosion-proof assembly is greatly prolonged, the maintenance cost is reduced, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic control, in particular to a gate hydraulic device. Background Art

[0002] Some oil cylinders need to be equipped with explosion-proof valves at the oil inlet to prevent the oil pipe from bursting when lifting heavy objects, causing the oil in the oil cylinder to leak out and the heavy objects to fall suddenly, causing accidents.

[0003] In the actual production process, when the furnace body is descending, the staff may mistakenly use the emergency button to lower the furnace door as quickly as possible. In this case, if there is a problem with the explosion-proof valve spring, the valve core may be pressed down against the valve body under sudden rapid pressure, making it impossible for the hydraulic oil above to flow downward, resulting in the equipment being unable to descend. The staff are required to climb to the top of the furnace to maintain the explosion-proof valve, which increases the safety risks of climbing. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a gate hydraulic device which reduces the danger of climbing, greatly increases the service life of explosion-proof components, reduces maintenance costs and has good practicality.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model to solve its technical problems is:

[0006] A gate hydraulic device, comprising:

[0007] A driving assembly, comprising two oil cylinders, the oil cylinders being connected to the furnace door driving, and the oil cylinders being used to drive the furnace door to move up and down;

[0008] An oil circuit assembly connected to the oil cylinder, wherein the oil circuit assembly includes a hydraulic synchronization component, and the hydraulic synchronization component is connected to the two oil cylinders through a pipeline;

[0009] An explosion-proof component is arranged in the pipeline, and the explosion-proof component includes an explosion-proof pipe, a valve body is arranged in the explosion-proof pipe, a valve core is arranged on the valve body, a guide rod is arranged on the valve core, the guide rod is penetrated on the valve body, a spring is sleeved on the guide rod, a disc is arranged on the valve core, and an explosion-proof hole is arranged on the disc.

[0010] Furthermore, the valve body is provided with an oil inlet matching the disc, and the explosion-proof hole is connected to the oil inlet to slowly relieve the pressure of the valve body.

[0011] Furthermore, the number of the explosion-proof holes is two, and the explosion-proof holes on both sides are symmetrically arranged on both sides of the disc, and the diameter of the explosion-proof holes is 2-6 mm.

[0012] Furthermore, the explosion-proof hole is obliquely arranged on the disc, the depth of the explosion-proof hole is greater than the thickness of the disc, and the oil inlet end of the explosion-proof hole is close to the edge of the disc, and the oil outlet end is close to the middle of the disc.

[0013] Furthermore, the hydraulic synchronization component includes a synchronous motor, one end of which is connected to the oil inlet pipe, and the other end is connected to the pipeline line. The two cylinders are synchronously driven by the synchronous motor, so that the furnace door connected to the cylinders performs lifting and reciprocating motion. The cylinders are connected to the oil return pipe.

[0014] Furthermore, an oil return assembly is provided between the oil return pipe and the oil inlet pipe, and the oil return assembly includes a one-way valve, a ball valve and a throttle valve, and the one-way valve, the ball valve and the throttle valve are connected in sequence through an oil pipe, the one-way valve is connected to the oil inlet pipe, and the throttle valve is connected to the oil return pipe.

[0015] Furthermore, a plurality of positioning rings are arranged on the inner wall of the explosion-proof tube, a sealing groove matching the positioning rings is arranged on the outer wall of the valve body, and the positioning rings are clamped on the sealing grooves.

[0016] Furthermore, a guide hole is provided on the valve body, the guide rod is penetrated through the valve body, a screw is provided on the free end of the guide rod, and a nut is provided on the screw to prevent the guide rod from detaching from the guide hole.

[0017] Furthermore, the valve body and the explosion-proof pipe are connected via a threaded seal.

[0018] Furthermore, the oil outlet end of the explosion-proof hole is projected onto the oil inlet, and the diameter of the oil inlet is 8-20 times the diameter of the explosion-proof hole.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides explosion-proof holes on the disc of the valve core, which effectively avoids the situation where the spring fails and the valve body is pressed by the hydraulic oil, so that the hydraulic oil can slowly flow down from the explosion-proof holes to release the pressure, so that the furnace door can automatically and slowly drop down under its own weight. There is no need for operators to climb up to such a high furnace to handle the explosion-proof components, which reduces the risk of climbing, greatly increases the service life of the explosion-proof components, reduces the maintenance cost, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a schematic diagram of a gate hydraulic device.

[0022] Figure 2 It is a schematic diagram of the explosion-proof component of the utility model.

[0023] Figure 3It is a schematic diagram of the valve body of the utility model.

[0024] Explanation of the numbers in the figure: 1. Cylinder; 2. Hydraulic synchronization component; 3. Explosion-proof component; 31. Explosion-proof pipe; 32. Valve body; 33. Valve core; 34. Disc; 35. Explosion-proof hole; 36. Guide rod; 37. Spring; 38. Nut; 39. Sealing groove; 4. Oil inlet pipe; 5. Oil return pipe; 6. Oil return component; 61. Check valve; 62. Ball valve; 63. Throttle valve. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0026] Reference Figure 1-3 As shown, a gate hydraulic device comprises:

[0027] The driving assembly includes two oil cylinders 1, wherein the oil cylinders 1 are connected to the furnace door driving, and the oil cylinders 1 are used to drive the furnace door to move up and down;

[0028] An oil circuit assembly connected to the oil cylinder 1, wherein the oil circuit assembly includes a hydraulic synchronization component 2, and the hydraulic synchronization component 2 is connected to the two oil cylinders 1 through pipelines;

[0029] An explosion-proof component 3 is arranged in the pipeline, and the explosion-proof component 3 includes an explosion-proof pipe 31, a valve body 32 is arranged in the explosion-proof pipe 31, a valve core 33 is arranged on the valve body 32, a guide rod 36 is arranged on the valve core 33, the guide rod 36 is penetrated on the valve body 32, a spring 37 is sleeved on the guide rod 36, a disc 34 is arranged on the valve core 33, and an explosion-proof hole 35 is arranged on the disc 34.

[0030] The utility model provides an explosion-proof hole 35 on the disk 34 of the valve core 33, which effectively avoids the situation where the spring 37 fails and the valve body 32 is pressed by the hydraulic oil. The hydraulic oil can slowly flow down from the explosion-proof hole 35 to release the pressure, so that the furnace door slowly and automatically descends under its own weight. There is no need for operators to climb up to such a high furnace to handle the explosion-proof component 3, which reduces the risk of climbing, greatly increases the service life of the explosion-proof component 3, reduces the maintenance cost, and has good practicality.

[0031] Furthermore, the valve body 32 is provided with an oil inlet matched with the disc 34 , and the explosion-proof hole 35 is connected with the oil inlet to slowly release pressure from the valve body 32 .

[0032] Specifically, an explosion-proof hole 35 is provided on the disc 34 of the valve core 33. When the spring 37 fails and the valve body 32 is pressed by the hydraulic oil, the hydraulic oil can slowly flow down from the small hole to release the pressure, so that the furnace body slowly descends automatically under its own weight. The operator does not need to climb up to such a high furnace to handle the explosion-proof valve, thereby reducing the danger of climbing.

[0033] Furthermore, the number of the explosion-proof holes 35 is two, and the explosion-proof holes 35 on both sides are symmetrically arranged on both sides of the disc 34, and the diameter of the explosion-proof holes 35 is 2-6 mm.

[0034] Specifically, the diameter of the explosion-proof hole 35 is 2-6 mm. Through the explosion-proof hole 35 with the above aperture, the explosion-proof valve will not divert the hydraulic oil during normal use, thereby ensuring the stable flow of the hydraulic oil.

[0035] Furthermore, the explosion-proof hole 35 is obliquely arranged on the disc 34 , the depth of the explosion-proof hole 35 is greater than the thickness of the disc 34 , and the oil inlet end of the explosion-proof hole 35 is close to the edge of the disc 34 , and the oil outlet end is close to the middle of the disc 34 .

[0036] Specifically, the oil inlet end of the explosion-proof hole 35 is close to the edge of the disc 34, and the oil outlet end is close to the middle of the disc 34, so as to increase the path length of the explosion-proof hole 35, avoid the diversion of the hydraulic oil during normal use of the explosion-proof valve, and ensure the stable flow of the hydraulic oil.

[0037] Furthermore, the hydraulic synchronization component 2 includes a synchronous motor, one end of which is connected to the oil inlet pipe 4, and the other end is connected to the pipeline line. The two cylinders 1 are synchronously driven by the synchronous motor, so that the furnace door connected to the cylinder 1 performs lifting and reciprocating motion. The cylinder 1 is connected to the oil return pipe 5.

[0038] Specifically, the furnace door descends by its own weight, and the two cylinders 1 are synchronously driven by a synchronous motor, so that the furnace door connected to the cylinder 1 performs a lifting and reciprocating motion, so that the furnace door rises or falls synchronously, ensuring the synchronous opening and closing of the furnace door in subsequent processing.

[0039] Furthermore, an oil return assembly 6 is provided between the oil return pipe 5 and the oil inlet pipe 4. The oil return assembly 6 includes a one-way valve 61, a ball valve 62 and a throttle valve 63. The one-way valve 61, the ball valve 62 and the throttle valve 63 are connected in sequence through oil pipes. The one-way valve 61 is connected to the oil inlet pipe 4, and the throttle valve 63 is connected to the oil return pipe 5.

[0040] Specifically, when the emergency ball valve 62 is used to quickly lower the furnace door, part of the air in the oil return pipe 5 may easily flow into the synchronous motor, affecting the normal use of the synchronous motor. By providing a one-way valve 61 between the oil return pipe 5 and the oil inlet pipe 4, air can be effectively prevented from flowing into the synchronous motor, thereby increasing the service life of the synchronous motor and ensuring normal production.

[0041] Furthermore, a plurality of positioning rings are arranged on the inner wall of the explosion-proof tube 31 , and a sealing groove 39 matching the positioning rings is arranged on the outer wall of the valve body 32 , and the positioning rings are clamped on the sealing groove 39 .

[0042] Specifically, the explosion-proof tube 31 is deformed to a certain extent by a clamp or an external force, so that the positioning ring on the inner wall of the explosion-proof tube 31 is sealed and connected to the sealing groove 39, which has good sealing performance and good practicality.

[0043] Furthermore, a guide hole is provided on the valve body 32, the guide rod 36 is passed through the valve body 32, a screw is provided on the free end of the guide rod 36, and a nut 38 is provided on the screw to prevent the guide rod 36 from detaching from the guide hole.

[0044] Specifically, a nut 38 is provided on the screw rod, and the distance between the disc 34 and the oil inlet of the valve body 32 can be adjusted by the nut 38 to control the flow of the hydraulic oil and ensure the stable operation of the cylinder 1.

[0045] Furthermore, the valve body 32 and the explosion-proof tube 31 are connected in a threaded seal, so that the explosion-proof tube 31 and the valve body 32 can be quickly disassembled and assembled, which is practical and convenient for replacing the valve core 33.

[0046] Furthermore, the oil outlet end of the explosion-proof hole 35 is projected onto the oil inlet, and the diameter of the oil inlet is 8-20 times the diameter of the explosion-proof hole 35 .

[0047] Specifically, the oil outlet end of the explosion-proof hole 35 is projected onto the oil inlet, so that the hydraulic oil at the explosion-proof hole 35 can slowly flow down from the small hole to relieve pressure, thereby ensuring the flow direction of the hydraulic oil. The diameter of the oil inlet is 8-20 times the diameter of the explosion-proof hole 35. When a large amount of hydraulic oil flows through the oil inlet, the explosion-proof hole 35 will not divert the hydraulic oil, thereby ensuring the stable flow of the hydraulic oil. At the same time, when pressure relief is required, the maximum pressure relief flow rate can be achieved.

[0048] Usage Process

[0049] The oil inlet pipe 4 is connected to the synchronous motor, and the synchronous motor is connected to the oil cylinder 1 through a pipeline. An explosion-proof pipe 31 is arranged on the pipeline. The two oil cylinders 1 are connected to the oil return pipe 5. The one-way valve 61, the ball valve 62 and the throttle valve 63 are connected in sequence through the oil pipe. The one-way valve 61 is connected to the oil inlet pipe 4, and the throttle valve 63 is connected to the oil return pipe 5, so as to complete the oil circuit control of the oil cylinder 1;

[0050] When the furnace body speed is decreasing, if there is a problem with the spring 37 of the explosion-proof valve body 32, the disc 34 at the top of the valve core 33 may be pressed down against the valve body 32 under the sudden rapid pressure, so that the oil above cannot flow downward, resulting in the equipment being unable to descend, and the staff need to climb to the top of the furnace to handle it, which increases the safety risks of climbing. By providing an explosion-proof hole 35 on the disc 34 of the valve core 33, it is effectively avoided that the spring 37 fails and the valve body 32 is pressed by the hydraulic oil. The hydraulic oil can slowly flow down from the small hole to release the pressure, so that the furnace body slowly and automatically descends under its own weight, and the operator does not need to climb to such a high furnace to handle the explosion-proof valve, reducing the risk of climbing.

[0051] The furnace door descends by its own weight. When the emergency ball valve 62 is used to quickly descend the furnace door, part of the air in the oil return pipe 5 may flow into the synchronous motor, affecting the normal use of the synchronous motor. By providing a one-way valve 61 between the oil return pipe 5 and the oil inlet pipe 4, air can be effectively prevented from flowing into the synchronous motor, thereby increasing the service life of the synchronous motor and ensuring normal production.

[0052] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A gate hydraulic device, characterized in that: include: A driving assembly, comprising two oil cylinders, the oil cylinders being connected to the furnace door driving, and the oil cylinders being used to drive the furnace door to move up and down; An oil circuit assembly connected to the oil cylinder, wherein the oil circuit assembly includes a hydraulic synchronization component, and the hydraulic synchronization component is connected to the two oil cylinders through a pipeline; An explosion-proof component is arranged in the pipeline, and the explosion-proof component includes an explosion-proof pipe, a valve body is arranged in the explosion-proof pipe, a valve core is arranged on the valve body, a guide rod is arranged on the valve core, the guide rod is penetrated on the valve body, a spring is sleeved on the guide rod, a disc is arranged on the valve core, and an explosion-proof hole is arranged on the disc.

2. The gate hydraulic device according to claim 1, characterized in that: The valve body is provided with an oil inlet matched with the disc, and the explosion-proof hole is communicated with the oil inlet to slowly release pressure on the valve body.

3. The gate hydraulic device according to claim 2, characterized in that: The number of the explosion-proof holes is two, and the explosion-proof holes on both sides are symmetrically arranged on both sides of the disc, and the diameter of the explosion-proof holes is 2-6 mm.

4. The gate hydraulic device according to claim 2, characterized in that: The explosion-proof hole is obliquely arranged on the disc, the depth of the explosion-proof hole is greater than the thickness of the disc, and the oil inlet end of the explosion-proof hole is close to the edge of the disc, and the oil outlet end is close to the middle of the disc.

5. The gate hydraulic device according to claim 1, characterized in that: The hydraulic synchronization component includes a synchronous motor, one end of which is connected to the oil inlet pipe, and the other end is connected to the pipeline line. The synchronous motor drives the two cylinders synchronously, so that the furnace door connected to the cylinders performs lifting and reciprocating motion. The cylinders are connected to the oil return pipe.

6. The gate hydraulic device according to claim 5, characterized in that: An oil return assembly is arranged between the oil return pipe and the oil inlet pipe, and the oil return assembly includes a one-way valve, a ball valve and a throttle valve, which are connected in sequence through an oil pipe, the one-way valve is connected to the oil inlet pipe, and the throttle valve is connected to the oil return pipe.

7. The gate hydraulic device according to claim 1, characterized in that: A plurality of positioning rings are arranged on the inner wall of the explosion-proof tube, a sealing groove matching the positioning rings is arranged on the outer wall of the valve body, and the positioning rings are clamped on the sealing grooves.

8. The gate hydraulic device according to claim 1, characterized in that: The valve body is provided with a guide hole, the guide rod is penetrated through the valve body, a screw is provided on the free end of the guide rod, and a nut is provided on the screw to prevent the guide rod from being separated from the guide hole.

9. The gate hydraulic device according to claim 1, characterized in that: The valve body and the explosion-proof pipe are connected via threaded sealing.

10. The gate hydraulic device according to any one of claims 2 or 4, characterized in that: The oil outlet end of the explosion-proof hole is projected onto the oil inlet, and the diameter of the oil inlet is 8-20 times the diameter of the explosion-proof hole.

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