Oil supply mechanism for hydraulic tool

Abstract

The utility model relates to an oil supply mechanism for a hydraulic tool. The oil supply mechanism comprises an oil supply body, a driving installation opening and a tool installation opening. An oil supply base is detachably mounted on the oil supply main body, and an oil bag is mounted on the oil supply base; an oil suction cavity is formed in the oil supply base and communicated with the oil bag through an oil suction path, an oil suction one-way valve is arranged in the oil suction path, a first oil injection path is arranged in the oil supply base, a second oil injection path communicated with the tool mounting port is arranged in the oil supply body, one end of the first oil injection path is communicated with the second oil injection path, and the other end of the first oil injection path is communicated with the oil bag. The other end of the first oil injection path is communicated with the oil suction cavity, and an oil injection one-way valve is arranged in the first oil injection path; an oil suction assembly is arranged in the oil suction cavity and used for being connected with a driving device. An oil return way is arranged in the oil supply base, one end of the oil return way is communicated with the first oil injection way, the other end of the oil return way is communicated with the oil bag, and an oil return assembly is arranged in the oil return way. The device has the effect of being high in maintenance convenience.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic tool parts, and in particular to an oil supply mechanism for hydraulic tools. Background Art

[0002] Hydraulic tools are commonly used driving devices in the industrial field. They can be connected with various tool heads to perform corresponding industrial operations, such as hydraulic shearing tools, hydraulic crimping tools for cable connectors, or split hydraulic jacks.

[0003] For example, a Chinese patent with application number 2021105462257 discloses a hydraulic tool, including a driving device and a hydraulic component, the hydraulic component including a body, a plunger pump and a hydraulic cylinder, the body extends in a longitudinal direction, the plunger pump includes a pump chamber and a plunger, the plunger reciprocates in the pump chamber, the plunger is connected to the driving device, the hydraulic cylinder includes a hydraulic chamber and a piston, the piston reciprocates in the hydraulic chamber, the pump chamber and the hydraulic chamber are defined in the body and are arranged in series in the longitudinal direction, the pump chamber is fluidly connected to the hydraulic cylinder, wherein the hydraulic fluid storage device is used to supply the pump chamber with hydraulic fluid.

[0004] With respect to the above-mentioned related technologies, the inventors found that the oil circuits and components are concentrated in the main body. Therefore, when maintaining the oil circuits and components in the later stage, the main body needs to be removed before maintenance can be carried out. This makes disassembly time-consuming and labor-intensive, and the convenience of maintenance is low. Therefore, there are certain areas for improvement. Utility Model Content

[0005] In order to improve the convenience of maintenance, the present application provides an oil supply mechanism for a hydraulic tool.

[0006] The oil supply mechanism for a hydraulic tool provided in this application adopts the following technical solution:

[0007] An oil supply mechanism for a hydraulic tool comprises an oil supply body, a drive installation port provided on the oil supply body for installing a drive device, and a tool installation port provided on the oil supply body for installing a hydraulic tool;

[0008] The oil supply body is detachably provided with an oil supply base, and the oil supply base is provided with an oil bag;

[0009] An oil suction chamber is provided in the oil supply base, the oil suction chamber is connected to the oil bag through an oil suction passage, an oil suction one-way valve is provided in the oil suction passage, a first oil injection passage is provided in the oil supply base, a second oil injection passage communicating with the tool installation port is provided in the oil supply body, one end of the first oil injection passage is communicated with the second oil injection passage, the other end of the first oil injection passage is communicated with the oil suction chamber, and an oil injection one-way valve is provided in the first oil injection passage;

[0010] An oil suction assembly is provided in the oil suction chamber, and the oil suction assembly is used to be connected to a driving device;

[0011] An oil return circuit is arranged in the oil supply base, one end of the oil return circuit is communicated with the first oil filling circuit, the other end of the oil return circuit is communicated with the oil bag, and an oil return assembly is arranged in the oil return circuit.

[0012] Optionally, an oil shell is installed on the oil supply base, and the oil shell is covered outside the oil bag.

[0013] Optionally, the oil suction assembly includes an oil suction mounting seat, an oil suction piston and a connecting rod, the oil suction mounting seat is mounted on the oil suction chamber, the oil suction piston is slidably mounted in the oil suction chamber, the connecting rod is slidably inserted in the oil suction mounting seat, one end of the connecting rod is connected to the oil suction piston, and the other end of the connecting rod extends into the drive mounting port.

[0014] Optionally, a linkage component for connecting the linkage rod and the driving device is provided in the driving mounting port, and the linkage component includes a driving shaft rotatably installed in the driving mounting port, and a cam installed on the driving shaft, and the wheel surface of the cam abuts against the end of the linkage rod.

[0015] Optionally, an oil through hole is provided on the top surface of the oil suction piston, and the oil through hole is covered with an oil through sheet.

[0016] Optionally, the oil suction one-way valve includes an oil suction port opened on the oil suction path, an oil suction ball arranged in the oil suction port, and an oil suction valve plate for covering the oil suction port, an oil suction through hole is opened on the oil suction valve plate, and an oil suction spring is installed between the oil suction valve plate and the oil suction piston.

[0017] Optionally, the oil return assembly includes an oil return port, an oil return ball and an oil return plug, the oil return port is connected to the oil return circuit, the oil return ball is arranged in the oil return port, the oil return plug is threadedly connected to the oil return port, and the end of the oil return plug abuts against the oil return ball to close the oil return circuit.

[0018] Optionally, an oil drain circuit is provided in the oil supply base, one end of the oil drain circuit is communicated with the first oil filling circuit, and the other end of the oil drain circuit is communicated with the oil bag, and an oil drain assembly is provided on the oil supply base at the other end of the oil drain circuit.

[0019] Optionally, the oil drain assembly includes an oil drain port opened on the oil supply base, and an oil drain seat threadedly connected to the oil drain port, an oil drain ball is arranged in the oil drain seat, an oil drain plug is threadedly connected to the end of the oil drain seat, an oil drain spring is installed in the oil drain seat, one end of the oil drain spring abuts against the oil drain ball to block the other end of the oil drain path, and the other end of the oil drain spring abuts against the oil drain plug, and an oil drain hole communicating with the oil bag is opened on the oil drain seat.

[0020] Optionally, the oil return circuit is communicated with the oil drain port, and the oil return circuit is communicated with the oil bag through the oil drain port.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] In the present application, the drive mounting port of the oil supply mechanism is used to install the drive device, and the tool mounting port is used to install the hydraulic tool. The hydraulic oil supply of the hydraulic tool can be achieved through the drive device. When the oil supply mechanism needs to be repaired, it is only necessary to remove the oil supply base from the oil supply body for repair, which has the characteristic of high maintenance convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the oil supply mechanism.

[0024] Figure 2 It is a cross-sectional schematic diagram of the oil supply mechanism.

[0025] Figure 3 It is a structural diagram of the oil supply base.

[0026] Description of the accompanying drawings: 1. Oil supply body; 2. Drive mounting port; 3. Tool mounting port; 4. Oil supply base; 5. Oil bag; 6. Oil shell; 7. Oil suction chamber; 8. Oil suction check valve; 81. Oil suction port; 82. Oil suction ball; 83. Oil suction valve plate; 84. Oil suction through hole; 85. Oil suction spring; 9. Oil suction assembly; 91. Oil suction mounting seat; 92. Oil suction piston; 93. Linkage rod; 94. Drive shaft; 95. Cam; 10. First oil injection path; 11. Second oil injection path; 1 2. Oil filling check valve; 121. Oil filling port; 122. Oil filling ball; 123. Oil filling plug; 124. Oil filling spring; 13. Oil return circuit; 14. Oil return assembly; 141. Oil return port; 142. Oil return ball; 143. Oil return plug; 15. Oil drain circuit; 16. Oil drain assembly; 161. Oil drain port; 162. Oil drain seat; 163. Oil drain ball; 164. Oil drain plug; 165. Oil drain spring; 166. Oil drain hole; 17. Oil through hole; 18. Oil through sheet. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3This application is described in further detail.

[0028] An oil supply mechanism for a hydraulic tool, referring to Figure 1 As shown, it includes an oil supply body 1, a drive installation port 2 provided on the oil supply body 1 for installing a drive device, and a tool installation port 3 provided on the oil supply body 1 for installing a hydraulic tool. In one embodiment, the drive device can be a drive motor or a drive hydraulic motor. The hydraulic tool can be a hydraulic shearing tool, a hydraulic crimping tool or a split hydraulic jack, and the tool installation port 3 is set as a threaded port to facilitate threaded installation through the tool installation port 3.

[0029] Reference Figure 2 and Figure 3 As shown, the oil supply base 4 is detachably mounted on the oil supply body 1. In one embodiment, the oil supply base 4 is mounted on the oil supply body 1 by bolts, an oil bag 5 is mounted on the oil supply base 4, a mounting edge is provided at the lower end of the oil supply base 4, the oil bag 5 is sleeved on the mounting edge and fixed by a clamp, an oil shell 6 is mounted on the oil supply base 4, the oil shell 6 is coated on the outside of the oil bag 5, and the oil bag 5 is filled with hydraulic oil.

[0030] An oil suction chamber 7 is provided in the oil supply base 4, and the oil suction chamber 7 is connected to the oil bag 5 through an oil suction path. An oil suction one-way valve 8 is provided in the oil suction path. An oil suction assembly 9 is provided in the oil suction chamber 7, and the oil suction assembly 9 is used to connect with the driving device.

[0031] The oil suction assembly 9 includes an oil suction mounting seat 91, an oil suction piston 92 and a linkage rod 93. The oil suction mounting seat 91 is mounted on the oil suction chamber 7, and the oil suction piston 92 is slidably mounted in the oil suction chamber 7. An oil through hole 17 is provided on the top surface of the oil suction piston 92, and the oil through hole 17 is covered with an oil through sheet 18. The linkage rod 93 is slidably inserted in the oil suction mounting seat 91, and one end of the linkage rod 93 is connected to the oil suction piston 92, and the other end of the linkage rod 93 extends into the drive mounting port 2.

[0032] A linkage component for connecting the linkage rod 93 and the driving device is provided in the driving installation port 2. The linkage component includes a driving shaft 94 rotatably installed in the driving installation port 2, and a cam 95 installed on the driving shaft 94. The wheel surface of the cam 95 abuts against the end of the linkage rod 93.

[0033] The oil suction check valve 8 includes an oil suction port 81 opened on the oil suction path, an oil suction ball 82 arranged in the oil suction port 81, and an oil suction valve plate 83 for covering the oil suction port 81. An oil suction through hole 84 is opened on the oil suction valve plate 83. An oil suction spring 85 is installed between the oil suction valve plate 83 and the oil suction piston 92. One end of the oil suction spring 85 abuts against the oil suction piston 92, and the other end of the oil suction spring 85 abuts against the oil suction valve plate 83.

[0034] A first oil filling circuit 10 is provided in the oil supply base 4, a second oil filling circuit 11 communicating with the tool mounting port 3 is provided in the oil supply body 1, one end of the first oil filling circuit 10 is communicated with the second oil filling circuit 11, the other end of the first oil filling circuit 10 is communicated with the oil suction chamber 7, and an oil filling check valve 12 is provided in the first oil filling circuit 10.

[0035] The oil filling one-way valve 12 includes an oil filling port 121 arranged in the oil supply base 4, the oil filling port 121 is communicated with the first oil filling passage 10, an oil filling ball 122 is arranged in the oil filling port 121, an oil filling plug 123 is threadedly installed in the oil filling port 121, an oil filling spring 124 is arranged in the oil filling port 121, one end of the oil filling spring 124 abuts against the oil filling plug 123, and the other end of the oil filling spring 124 abuts against the oil filling ball 122 to block the first oil filling passage 10.

[0036] An oil return path 13 is provided in the oil supply base 4, one end of the oil return path 13 is communicated with the first oil filling path 10, the other end of the oil return path 13 is communicated with the oil bag 5, and an oil return assembly 14 is provided in the oil return path 13. The oil return assembly 14 includes an oil return port 141, an oil return ball 142 and an oil return screw plug 143, the oil return port 141 is communicated with the oil return path 13, the oil return ball 142 is provided in the oil return port 141, the oil return screw plug 143 is threadedly connected to the oil return port 141, and the end of the oil return screw plug 143 abuts against the oil return ball 142 to close the oil return path 13.

[0037] An oil leakage passage 15 is provided in the oil supply base 4, one end of the oil leakage passage 15 is communicated with the first oil injection passage 10, and the other end of the oil leakage passage 15 is communicated with the oil bag 5. An oil leakage assembly 16 is provided at the other end of the oil leakage passage 15 on the oil supply base 4. The oil leakage assembly 16 includes an oil leakage port 161 provided on the oil supply base 4, and an oil leakage seat 162 threadedly connected to the oil leakage port 161, an oil leakage ball 163 is provided in the oil leakage seat 162, an oil leakage screw plug 164 is threadedly connected to the end of the oil leakage seat 162, an oil leakage spring 165 is installed in the oil leakage seat 162, one end of the oil leakage spring 165 abuts on the oil leakage ball 163 to block the other end of the oil leakage passage 15, and the other end of the oil leakage spring 165 abuts on the oil leakage screw plug 164, and an oil leakage hole 166 communicating with the oil bag 5 is provided on the oil leakage seat 162.

[0038] It is worth noting that the oil return circuit 13 is connected to the oil drain port 161, and the oil return circuit 13 is connected to the oil bag 5 through the oil drain port 161, that is, a part of the hydraulic oil in the oil return circuit 13 will flow through the oil drain port 161. The above arrangement is used to improve the utilization rate of the space layout in the oil supply base 4.

[0039] In the present application, the driving device drives the oil suction plug to move up and down, and the hydraulic oil in the oil plug will enter the oil suction chamber 7 through the oil suction check valve 8, and then enter the second oil filling circuit 11 through the oil filling check valve 12 and the first oil filling circuit 10, and enter the hydraulic tool in the tool installation port 3 through the second oil filling circuit 11.

[0040] When the hydraulic oil in the hydraulic tool needs to be released, the oil return screw plug 143 is loosened to connect the oil return path 13 with the first oil filling path 10. At this time, the hydraulic oil in the hydraulic tool will pass through the first oil filling path 10 and the oil return path 13 and enter the oil plug for recovery.

[0041] In the present application, the oil leakage circuit 15 is connected to the first oil filling circuit 10. When the hydraulic oil can no longer be pressed into the hydraulic tool, the hydraulic oil will push the oil leakage ball 163 from the oil leakage circuit 15, pass through the oil leakage seat 162 and the oil leakage hole 166, and re-enter the oil bag 5 to complete the oil leakage process.

[0042] In the present application, when the oil supply mechanism needs to be repaired, it is only necessary to remove the oil supply base 4 from the oil supply body 1 for repair, which has the characteristic of high maintenance convenience.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An oil supply mechanism for a hydraulic tool, characterized in that: It comprises an oil supply body (1), a drive installation port (2) arranged on the oil supply body (1) for installing a drive device, and a tool installation port (3) arranged on the oil supply body (1) for installing a hydraulic tool; An oil supply base (4) is detachably mounted on the oil supply body (1), and an oil bag (5) is mounted on the oil supply base (4); An oil suction chamber (7) is provided in the oil supply base (4), the oil suction chamber (7) is connected to the oil bag (5) through an oil suction passage, an oil suction check valve (8) is provided in the oil suction passage, a first oil injection passage (10) is provided in the oil supply base (4), a second oil injection passage (11) connected to the tool mounting port (3) is provided in the oil supply body (1), one end of the first oil injection passage (10) is connected to the second oil injection passage (11), the other end of the first oil injection passage (10) is connected to the oil suction chamber (7), and an oil injection check valve (12) is provided in the first oil injection passage (10); An oil suction assembly (9) is arranged in the oil suction chamber (7), and the oil suction assembly (9) is used to be connected to a driving device; An oil return path (13) is provided in the oil supply base (4), one end of the oil return path (13) is communicated with the first oil injection path (10), the other end of the oil return path (13) is communicated with the oil bag (5), and an oil return assembly (14) is provided in the oil return path (13).

2. The oil supply mechanism for a hydraulic tool according to claim 1, characterized in that: An oil shell (6) is installed on the oil supply base (4), and the oil shell (6) is wrapped around the outside of the oil bag (5).

3. The oil supply mechanism for a hydraulic tool according to claim 1, characterized in that: The oil suction assembly (9) comprises an oil suction mounting seat (91), an oil suction piston (92) and a linkage rod (93); the oil suction mounting seat (91) is mounted on the oil suction chamber (7); the oil suction piston (92) is slidably mounted in the oil suction chamber (7); the linkage rod (93) is slidably inserted in the oil suction mounting seat (91); one end of the linkage rod (93) is connected to the oil suction piston (92); and the other end of the linkage rod (93) extends into the drive mounting port (2).

4. The oil supply mechanism for a hydraulic tool according to claim 3, characterized in that: A linkage component for connecting a linkage rod (93) and a driving device is provided in the driving installation port (2), and the linkage component comprises a driving shaft (94) rotatably mounted in the driving installation port (2), and a cam (95) mounted on the driving shaft (94), wherein a wheel surface of the cam (95) abuts against an end of the linkage rod (93).

5. The oil supply mechanism for a hydraulic tool according to claim 3, characterized in that: An oil through hole (17) is formed on the top surface of the oil suction piston (92), and the oil through hole (17) is covered with an oil through sheet (18).

6. The oil supply mechanism for a hydraulic tool according to claim 3, characterized in that: The oil suction check valve (8) comprises an oil suction port (81) provided on the oil suction path, an oil suction ball (82) arranged in the oil suction port (81), and an oil suction valve plate (83) used to cover the oil suction port (81); an oil suction through hole (84) is provided on the oil suction valve plate (83); and an oil suction spring (85) is installed between the oil suction valve plate (83) and the oil suction piston (92).

7. The oil supply mechanism for a hydraulic tool according to claim 1, characterized in that: The oil return assembly (14) comprises an oil return port (141), an oil return ball (142) and an oil return screw plug (143); the oil return port (141) is connected to the oil return passage (13); the oil return ball (142) is arranged in the oil return port (141); the oil return screw plug (143) is threadedly connected to the oil return port (141); and the end of the oil return screw plug (143) abuts against the oil return ball (142) to close the oil return passage (13).

8. The oil supply mechanism for a hydraulic tool according to claim 1, characterized in that: An oil drain path (15) is provided in the oil supply base (4), one end of the oil drain path (15) is communicated with the first oil filling path (10), and the other end of the oil drain path (15) is communicated with the oil bag (5). An oil drain assembly (16) is provided on the oil supply base (4) at the other end of the oil drain path (15).

9. The oil supply mechanism for a hydraulic tool according to claim 8, characterized in that: The oil drain assembly (16) comprises an oil drain port (161) provided on an oil supply base (4), and an oil drain seat (162) threadedly connected to the oil drain port (161); an oil drain ball (163) is arranged in the oil drain seat (162); an end of the oil drain seat (162) is threadedly connected to an oil drain screw plug (164); an oil drain spring (165) is installed in the oil drain seat (162); one end of the oil drain spring (165) abuts against the oil drain ball (163) to block the other end of the oil drain path (15); the other end of the oil drain spring (165) abuts against the oil drain screw plug (164); and an oil drain hole (166) communicating with the oil bag (5) is provided on the oil drain seat (162).

10. The oil supply mechanism for a hydraulic tool according to claim 9, characterized in that: The oil return path (13) is in communication with the oil drain port (161), and the oil return path (13) is in communication with the oil bag (5) through the oil drain port (161).

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