Servo hydraulic device with adjustable oil inlet

Abstract

The utility model provides a servo hydraulic device with an adjustable oil inlet, which comprises a servo hydraulic device main body, a pressure control valve and a hanging bracket assembly, and a base is arranged at the lower end of the internal composition of the servo hydraulic device main body. The servo hydraulic device has the advantages that by adding the servo hydraulic device body and the hanging bracket assembly, different oil pipe oil inlet connectors are connected with a low-pressure casting machine, and the two sets of clamping semi-rings are clamped and fixed to the outer side of the oil distributing pipe to conduct auxiliary hoisting and fixing on the oil distributing pipe; oil pressure and oil quantity control of an oil way is achieved through a pressure control valve and a main flow control valve which are connected to the tail ends of the two sides of an oil outlet connecting pipe, on-off control of the oil way is achieved through a control valve connected to the rear side of an oil distribution pipe, flow control of a single way is achieved through a flow distribution control valve, and oil pressure and oil quantity adjustment can be conducted on an oil inlet; by adding the hanging bracket assembly, up-and-down and front-and-back movement adjustment can be conducted according to the installation condition.

Description

Technical Field

[0001] The utility model belongs to the technical field of servo hydraulic devices for low-pressure casting machines, and particularly relates to a servo hydraulic device with an adjustable oil inlet. Background Technique

[0002] A low-pressure casting machine is a casting device that uses low pressure to inject molten metal into a mold to form castings, and can be widely used in the production of aluminum alloy castings in the automotive, motorcycle, instrument, textile machinery, and aerospace industries. The low-pressure casting machine consists of a main machine, a hydraulic system, a pool-type holding furnace, a liquid level pressurizing device, an electrical control system, a mold cooling system, etc. Most of its control systems are hydraulic control methods, and a servo hydraulic device is required to assist in controlling it. For common low-pressure casting machines, the hydraulic oil control at the oil inlet of the used servo hydraulic device can mostly only achieve simple on-off, and cannot adjust and control the oil pressure and oil volume at the oil inlet according to the actual needs of the low-pressure casting machine, and cannot independently control different hydraulic cylinders, resulting in inconvenient adjustment problems in actual use, which is not conducive to the production and manufacturing of various castings in actual use.

[0003] In summary, there are some problems in the use of a servo hydraulic device for a low-pressure casting machine that cannot adjust the oil inlet, so it is hoped to propose a new structure to solve the above technical problems. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a servo hydraulic device with an adjustable oil inlet to solve the problems proposed in the above background technique.

[0005] The utility model is realized through the following technical solutions: A servo hydraulic device with an adjustable oil inlet, comprising: a servo hydraulic device main body, a pressure control valve, and a hanger assembly. At the lower end of the internal composition of the servo hydraulic device main body, there is a base. At the rear end above the base, there is a hydraulic oil tank. Above the hydraulic oil tank, there are several groups of oil outlet pipes. Above the oil outlet pipes, there is a pressure control valve for controlling the use of oil pressure. Above the pressure control valve, there is an oil outlet connecting pipe. At the rear side of the oil outlet connecting pipe, there is a main flow control valve for controlling the hydraulic oil volume. At the rear side of the main flow control valve, there is a branch oil pipe. Above the branch oil pipe, there is a hanger assembly for realizing lifting assistance.

[0006] As a preferred implementation manner, at the lower end of the internal composition of the hanger assembly, there are two symmetrically arranged clamping half-rings for connecting and clamping the branch oil pipe, and a rotating shaft is arranged at the upper end between the two clamping half-rings.

[0007] As a preferred embodiment, the two engaging half-rings are engaged with the sub-oil pipe and fixed by bolts. Above the rotating shaft, there is a lower telescopic suspension rod. On the left and right ends behind the sub-oil pipe, a set of control valves for controlling the on-off of the pipeline are installed through flange connections, which can be engaged with the sub-oil pipe through the engaging half-rings to assist in hoisting and fixing the sub-oil pipe and its front and rear components.

[0008] As a preferred embodiment, behind the control valve, there is a flow control valve for controlling the flow rate of a single pipeline. Behind the flow control valve, there is an oil pipe inlet joint for connecting with the hydraulic cylinder of the low-pressure casting machine, which can adjust and control the oil volume of this branch through the flow control valve and be connected and fixed with the low-pressure casting machine through the oil pipe inlet joint.

[0009] As a preferred embodiment, above the outer side of the lower telescopic suspension rod, there is an upper telescopic suspension rod. On the lower left end of the outer side of the upper telescopic suspension rod, there is a fixing threaded hole. Inside the fixing threaded hole, there is a fixing stud, and the fixing stud is in threaded fit with the fixing threaded hole.

[0010] As a preferred embodiment, above the upper telescopic suspension rod, there is a moving slider. Outside the moving slider, there is a moving suspension bracket. On the lower surface of the moving suspension bracket, there is a moving sliding groove, and the moving slider is movably fitted with the moving sliding groove.

[0011] As a preferred embodiment, on the left side surface of the moving suspension bracket, there is a through groove for assisting in fixing the moving slider. On the left side of the moving slider, there is a fixing bolt passing through the through groove;

[0012] The moving slider is fixed by screwing and tightening the fixing bolt and nut. On the right end of the moving suspension bracket, there is a mounting plate for fixedly connecting with the low-pressure casting machine, which can adjust the front and rear positions of the engaging half-rings according to the actual installation of the sub-oil pipe, enable the moving slider to slide inside the moving sliding groove, and fix the position of the moving slider by screwing and tightening the fixing bolt and nut.

[0013] After adopting the above technical solutions, the beneficial effects of the present utility model are as follows: By adding the servo hydraulic device main body and the suspension bracket assembly, connecting different oil pipe inlet joints with the low-pressure casting machine, engaging and fixing the two engaging half-rings with the outer side of the sub-oil pipe to assist in hoisting and fixing it, realizing the control of the oil pressure and oil volume of the oil circuit through the pressure control valve and the main flow control valve connected to the two ends of the oil outlet connecting pipe, realizing the on-off control of the oil circuit through the control valve connected to the rear side of the sub-oil pipe, and realizing the single-way flow control through the flow control valve, being able to adjust the oil pressure and oil volume of the oil inlet, and being able to adjust the up, down, front and back movements according to the installation situation by adding the suspension bracket assembly. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is the overall structural schematic diagram of a servo hydraulic device with an adjustable oil inlet of the present invention.

[0016] Figure 2 This is the structural schematic diagram of the servo hydraulic device main body in a servo hydraulic device with an adjustable oil inlet of the present invention.

[0017] Figure 3 For Figure 2 the enlarged view at A in

[0018] Figure 4 This is the structural schematic diagram of the hanger assembly in a servo hydraulic device with an adjustable oil inlet of the present invention.

[0019] In the figure, 100 - servo hydraulic device main body, 101 - base, 102 - oil pipe inlet joint, 103 - hydraulic oil tank, 104 - pressure control valve, 105 - oil outlet connecting pipe, 106 - main flow control valve, 107 - sub - oil pipe, 108 - control valve, 109 - sub - flow control valve;

[0020] 200 - hanger assembly, 201 - mounting plate, 202 - moving hanger, 203 - moving chute, 204 - through slot, 205 - moving slider, 206 - fixing bolt, 207 - upper telescopic suspension rod, 208 - lower telescopic suspension rod, 209 - fixing stud, 210 - engaging semi - ring. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] Please refer to Figures 1 to 4 , the present invention provides a technical solution: a servo hydraulic device with an adjustable oil inlet, including: a servo hydraulic device main body 100, a pressure control valve 104, and a hanger assembly 200. The lower end of the internal composition of the servo hydraulic device main body 100 is provided with a base 101;

[0023] Above the rear end of the base 101, there is a hydraulic oil tank 103. Above the hydraulic oil tank 103, there are several groups of oil outlet pipes. Above the oil outlet pipes, there is a pressure control valve 104 for controlling the use of oil pressure.

[0024] Above the pressure control valve 104, there is an oil outlet connecting pipe 105. At the rear side of the oil outlet connecting pipe 105, there is a main flow control valve 106 for controlling the hydraulic oil volume. At the rear side of the main flow control valve 106, there is a branch oil pipe 107. Above the branch oil pipe 107, there is a hanger assembly 200 for realizing lifting assistance.

[0025] At the lower end of the internal composition of the hanger assembly 200, there are two symmetrically arranged clamping semi - rings 210 for clamping and connecting the branch oil pipe 107. Above the two clamping semi - rings 210, there is a rotating shaft.

[0026] The two clamping semi - rings 210 are mutually clamped with the branch oil pipe 107 and are connected and fixed by bolts. Above the rotating shaft, there is a lower telescopic boom 208. At the left and right ends of the rear side of the branch oil pipe 107, there is a control valve 108 for controlling the on - off of the pipeline through flange connection. It can be clamped and connected with the branch oil pipe 107 through the clamping semi - rings 210 to assist in lifting and fixing the branch oil pipe 107 and its front and rear components.

[0027] Behind the control valve 108, there is a flow - dividing control valve 109 for controlling the flow of a single pipeline. Behind the flow - dividing control valve 109, there is an oil pipe inlet joint 102 for connecting with the hydraulic cylinder of the low - pressure casting machine. It can adjust and control the oil volume of this branch through the flow - dividing control valve 109 and be connected and fixed with the low - pressure casting machine through the oil pipe inlet joint 102.

[0028] Please refer to Figures 1 - 4 , as the first embodiment of the present utility model: First, the user clamps the two clamping semi - rings 210 to the outside of the branch oil pipe 107 and uses bolts to connect and fix the two clamping semi - rings 210 to complete the lifting and fixing of the branch oil pipe 107, and is connected and fixed with the low - pressure casting machine through the oil pipe inlet joint 102. Secondly, during use, according to the actual needs of the low - pressure casting machine, the oil pressure of the oil inlet can be controlled through the pressure control valve 104, the on - off of this oil circuit can be controlled by using the control valve 108, and the oil volume of a single oil circuit can be adjusted and controlled through the flow - dividing control valve 109 according to the needs of different hydraulic cylinders, so as to complete different adjustment and control of the low - pressure casting machine, thereby facilitating the manufacturing and production of castings.

[0029] On the outer side above the lower telescopic boom 208, there is an upper telescopic boom 207. On the left lower end of the outer side of the upper telescopic boom 207, there is a fixed threaded hole. Inside the fixed threaded hole, there is a fixed stud 209. The fixed stud 209 is in threaded fit with the fixed threaded hole.

[0030] Above the upper telescopic suspension rod 207, there is a moving slider 205. On the outside of the moving slider 205, there is a moving suspension bracket 202. On the lower surface of the moving suspension bracket 202, there is a moving chute 203. The moving slider 205 and the moving chute 203 are movably fitted with each other.

[0031] On the left side surface of the moving suspension bracket 202, there is a through groove 204 for assisting in fixing the moving slider 205. On the left side of the moving slider 205, there is a fixing bolt 206 which passes through the through groove.

[0032] The moving slider 205 is fixed by screwing the fixing bolt 206 and the nut tightly. At the right end of the moving suspension bracket 202, there is a mounting plate 201 for fixedly connecting with the low-pressure casting machine. It can adjust the front and rear positions of the clamping semi-ring 210 according to the actual installation of the sub-oil pipe 107, so that the moving slider 205 slides inside the moving chute 203, and the position of the moving slider 205 is fixed by screwing the fixing bolt 206 and the nut tightly.

[0033] Please refer to Figure 1 and Figure 4 , as the second embodiment of the present invention: Based on the above first embodiment, the user can adjust the front and rear positions of the clamping semi-ring 210 according to the actual installation of the sub-oil pipe 107, so that the moving slider 205 slides inside the moving chute 203, and the position of the moving slider 205 is fixed by screwing the fixing bolt 206 and the nut tightly. Moreover, the lower telescopic suspension rod 208 can move up and down inside the upper telescopic suspension rod 207, and the fixing stud 209 is tightened to fix the up and down position of the lower telescopic suspension rod 208 to assist in the hoisting and fixing of the sub-oil pipe 107.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A servo hydraulic device with an adjustable oil inlet, comprising: A servo hydraulic device body (100), a pressure control valve (104) and a hanger assembly (200), characterized in that: the servo hydraulic device body (100) has a base (101) at the lower end thereof; A hydraulic oil tank (103) is provided at the rear end above the base (101), a plurality of groups of oil outlet pipes are provided above the hydraulic oil tank (103), and a pressure control valve (104) for controlling oil pressure is provided above the oil outlet pipes; An oil outlet connecting pipe (105) is provided above the pressure control valve (104), a main flow control valve (106) for controlling the amount of hydraulic oil is provided at the rear side of the oil outlet connecting pipe (105), an oil distribution pipe (107) is provided at the rear side of the main flow control valve (106), and a hanger assembly (200) for auxiliary lifting is provided above the oil distribution pipe (107).

2. A servo hydraulic device with an adjustable oil inlet as claimed in claim 1, characterized in that: The hanger assembly (200) has two groups of symmetrically arranged engaging half rings (210) at its lower end for connecting and engaging the oil distribution pipe (107), and a rotating shaft is provided at the upper end between the two groups of engaging half rings (210).

3. A servo hydraulic device with an adjustable oil inlet as claimed in claim 2, characterized in that: The two groups of engaging half rings (210) and the oil distribution pipe (107) are mutually engaged and fixed by bolt connection. A lower telescopic suspension rod (208) is provided above the rotating shaft. A group of control valves (108) for controlling the on-off of the pipeline are installed at both left and right ends of the rear of the oil distribution pipe (107) through flange connection.

4. A servo hydraulic device with an adjustable oil inlet as claimed in claim 3, characterized in that: A flow control valve (109) for controlling the flow of a separate pipeline is provided behind the control valve (108), and an oil pipe oil inlet connector (102) for connecting to a hydraulic cylinder of a low-pressure casting machine is provided behind the flow control valve (109).

5. A servo hydraulic device with an adjustable oil inlet as claimed in claim 3, characterized in that: An upper telescopic suspension rod (207) is provided on the upper outer side of the lower telescopic suspension rod (208); a fixing threaded hole is provided at the lower left end of the outer side surface of the upper telescopic suspension rod (207); a fixing stud (209) is provided on the inner side of the fixing threaded hole; the fixing stud (209) is threadedly connected to the fixing threaded hole.

6. A servo hydraulic device with an adjustable oil inlet as claimed in claim 5, characterized in that: A movable slider (205) is provided above the upper telescopic suspension rod (207), a movable hanger (202) is provided outside the movable slider (205), a movable slide groove (203) is provided on the lower surface of the movable hanger (202), and the movable slider (205) and the movable slide groove (203) are movably engaged with each other.

7. A servo hydraulic device with an adjustable oil inlet as claimed in claim 6, characterized in that: The left side of the movable hanger (202) is provided with a through slot (204) for assisting the fixing of the movable slider (205); the left side of the movable slider (205) is provided with a fixing bolt (206) passing through the through slot; The movable slide block (205) is fixed by screwing a fixing bolt (206) and a nut together and tightening them, and a mounting plate (201) for fixedly connecting to a low-pressure casting machine is provided at the right end of the movable hanger (202).

Images