Oil route block for realizing mutual conversion of J079 series servo valve and D662 series servo valve
By designing a specific oil circuit block, the problems of high cost, low versatility and high failure rate of J079 series servo valves are solved, and the mutual conversion of J079 series and D662 series servo valves are realized, reducing the cost of use and faults. shortens maintenance time.
Patent Information
- Application Number
- CN202420563638.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-03-22
AI Technical Summary
Due to the high price, poor versatility, long procurement cycle and high requirements for hydraulic media cleanliness and working temperature, the J079 series servo valves cannot be replaced directly with the J079 series servo valves, resulting in poor stability and high failure rate. Mutual conversion cannot be achieved.
An oil circuit block is designed to achieve mutual conversion of the J079 series and D662 series servo valves by setting specific bolt holes, oil circuit holes and connection holes on the end faces A and end faces B of the oil circuit block. The oil circuit block is sealed with O-ring made of pyrochlore rubber or fluoroelastic rubber and is connected with 12.9-level hexagon bolts.
By installing the oil circuit block, the J079 series servo valve is converted into the D662 series type, reducing the cost of use, shortening maintenance time, and reducing the failure rate. The end face A is connected and the D662 series servo valve, and the end face B is the same size as the J079B199 servo valve. Ability to fix the connection.
Smart Images
Figure CN222526606U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of oil circuit blocks, in particular to an oil circuit block for realizing mutual conversion between J079 series servo valves and D662 series servo valves. Background Art
[0002] The oil circuit block connects, distributes and controls the flow of hydraulic oil in the hydraulic system. It is usually composed of pipes, connectors, valves, etc. During the conversion of servo valves, the oil circuit block will guide the hydraulic oil flow from the control signal to different working valves, thereby controlling the working state of the hydraulic system. The specific design and composition of the oil circuit block vary according to different hydraulic systems and servo valve types.
[0003] The J series (J079B199) servo valve is used in the AWC control system of the vertical roller mill in the rough rolling area of the hot rolling mill of steel plates. The servo valve is expensive, has poor versatility, and has a long procurement cycle. The more critical problem is that the valve has high requirements on the working environment such as the cleanliness of the hydraulic medium and the working temperature. Therefore, the valve has poor stability and a high failure rate. The D662 series servo valve does not have these problems, but the oil port position and size of the D662 series servo valve are not consistent with the J series (J079B199) servo valve, and replacement cannot be achieved. Therefore, it is necessary to design an oil circuit block to be used in combination with the D662 series servo valve to replace the J series (J079B199) servo valve. Therefore, in view of the above situation, it is urgent to develop an oil circuit block that can realize the mutual conversion between the J079 series and the D662 series servo valves to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content
[0004] The utility model aims to provide an oil circuit block for realizing mutual conversion between J079 series and D662 series servo valves, so as to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An oil circuit block for realizing mutual conversion between J079 series and D662 series servo valves comprises an oil circuit block, the top of the oil circuit block is an end surface A, and the bottom of the oil circuit block is an end surface B.
[0007] As a further solution of the utility model: four bolt holes A are provided at the four corners of the edge of the end surface A, an oil passage hole and a connecting hole A are provided in the middle of the end surface A, and the connecting hole A is used to connect and fix the servo valve.
[0008] As a further solution of the utility model: the oil circuit hole includes oil hole P, oil hole A, oil hole B, oil hole T1 and oil hole T2, the oil hole P, oil hole A, oil hole B, oil hole T1 and oil hole T2 are distributed in a "human" shape, and the oil circuit hole can be connected to the servo valve.
[0009] As a further solution of the utility model: bolt holes B are provided at the four corners of the edge of the end surface B, two relatively distributed connecting holes B are provided at the edge of the end surface B, four rectangular and equidistantly distributed oil ports are provided in the middle of the end surface B, the end surface B is the same size as the servo valve, and can be connected and fixed in conjunction with the connecting holes B.
[0010] As a further solution of the utility model: the seal used for the oil circuit block adopts an O-ring made of nitrile rubber or fluororubber, and the connecting bolts adopt 12.9 grade hexagon socket bolts.
[0011] Beneficial effects: The oil circuit block that realizes the mutual conversion between the J079 series and the D662 series servo valves can convert the servo valve to the D662 series by installing the transition oil circuit block, which can reduce the use cost, shorten the maintenance time, and reduce the failure rate. The oil port on the end face A can be connected and communicated with the servo valve (D662 series), and is provided with a connection hole A fixedly connected to the servo valve. The end face B is the same size as the servo valve (J079B199) and is provided with a connection hole B122 for mounting bolts. The oil circuit block is combined with the servo valve (D662 series) through the end face A and end face B oil ports to replace the original servo valve (J079B199), and the oil ports on the upper and lower surfaces are processed through inclined holes. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a front structural schematic diagram of the utility model.
[0013] Figure 2 It is a schematic diagram of the back structure of the utility model.
[0014] Figure 3 It is a top view of the utility model.
[0015] In the figure: 1, oil circuit block; 11, end face A; 111, bolt hole A; 112, oil circuit hole; 1121, oil hole P; 1122, oil hole A; 1123, oil hole B; 1124, oil hole T1; 1125, oil hole T2; 113, connecting hole A; 12, end face B; 121, bolt hole B; 122, connecting hole B; 123, oil port. DETAILED DESCRIPTION
[0016] Example
[0017] See also Figures 1 to 3In an embodiment of the utility model, an oil circuit block for realizing mutual conversion between J079 series and D662 series servo valves includes an oil circuit block 1, the top of the oil circuit block 1 is an end surface A11, and the bottom of the oil circuit block 1 is an end surface B12.
[0018] As a further solution of the utility model: four bolt holes A111 are opened at the four corners of the edge of the end surface A11, and an oil passage hole 112 and a connecting hole A113 are opened in the middle of the end surface A11. The connecting hole A113 is used to connect and fix the servo valve D662 series.
[0019] As a further solution of the utility model: the oil circuit hole 112 includes oil hole P1121, oil hole A1122, oil hole B1123, oil hole T11124 and oil hole T21125, the oil hole P1121, oil hole A1122, oil hole B1123, oil hole T11124 and oil hole T21125 are distributed in a "human" shape, and the oil circuit hole 112 can be connected and communicated with the servo valve D662 series.
[0020] As a further solution of the utility model: bolt holes B121 are provided at the four corners of the edge of the end surface B12, two relatively distributed connecting holes B122 are provided at the edge of the end surface B12, four rectangular and equidistantly distributed oil ports 123 are provided in the middle of the end surface B12, the end surface B12 has the same size as the servo valve J079B199, and can be connected and fixed in conjunction with the connecting holes B122.
[0021] As a further solution of the utility model: the seal used in the oil circuit block 1 adopts an O-ring made of nitrile rubber or fluororubber, and the connecting bolts adopt 12.9 grade hexagon socket bolts.
[0022] The working principle of the utility model is: when the oil circuit block realizing the mutual conversion between the J079 series and the D662 series servo valves is in use, the oil circuit hole 112 of the end face A11 can be connected and communicated with the servo valve (D662 series), and is fixedly connected with the servo valve through the provided connection hole A113, the end face B12 is the same size as the servo valve (J079B199), and is provided with a connection hole B122 for mounting bolts, the oil circuit block 1 is combined with the servo valve (D662 series) to replace the original servo valve (J079B199), the upper and lower surface oil ports are processed through oblique holes, so that the upper and lower pressure oil holes P1121 are communicated, and the oil hole A\oil hole B are communicated respectively, and the oil hole T1 and the oil hole T2 of the end face A11 are communicated with the oil return port of the end face B through the processing of the oblique hole and the side straight hole.
[0023] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An oil block for realizing mutual conversion between J079 series and D662 series servo valves, characterized by: The invention comprises an oil passage block (1), wherein the top of the oil passage block (1) is an end face A (11), the bottom of the oil passage block (1) is an end face B (12), four bolt holes A (111) are provided at the four corners of the edge of the end face A (11), an oil passage hole (112) and a connecting hole A (113) are provided at the middle of the end face A (11), and the oil passage hole (112) comprises an oil hole P (1121), an oil hole A (1122), an oil hole B (1123), an oil hole T1 (1124) and an oil hole P2 (1125). The oil hole P (1121), the oil hole A (1122), the oil hole B (1123), the oil hole T1 (1124) and the oil hole T2 (1125) are arranged in a herringbone shape, the four corners of the edge of the end surface B (12) are provided with bolt holes B (121), the edge of the end surface B (12) is provided with two relatively distributed connecting holes B (122), and the middle of the end surface B (12) is provided with four rectangular and equidistantly distributed oil ports (123).
2. The oil circuit block for realizing mutual conversion between J079 series and D662 series servo valves according to claim 1 is characterized in that: The seal used in the oil circuit block (1) is an O-ring made of nitrile rubber or fluororubber, and the connecting bolts are 12.9 grade hexagon socket bolts.