A presser foot oil leakage protection device of a plate shearing machine

Abstract

The utility model relates to plate shearing machine technical field, concretely to a plate shearing machine pressure foot oil leakage protection device, including the pump shaft, the pump shaft is sleeved with the shaft sleeve, one end of pump shaft is detachably connected with the dynamic ring subassembly, one side of dynamic ring subassembly is equipped with the dynamic ring seal ring, the pump shaft is passed through and is arranged in dynamic ring subassembly and dynamic ring seal ring, the shaft sleeve is sleeved with static ring subassembly, one side of static ring subassembly is equipped with the conical ring groove, one end side wall in conical ring groove is equipped with the second annular sliding slot, the opposite side wall in the second annular sliding slot all is equipped with the first annular sliding slot. The utility model through the cooperation between multiple components, can make static ring seal ring always firmly resist dynamic ring seal ring, help to prolong the service life of static ring seal ring, and can further improve the sealing effect through the second sealing gasket ring, first sealing gasket ring, avoid the situation of oil leakage, guarantee plate shearing machine shearing effect.

Description

Technical Field

[0001] This utility model relates to the field of shearing machine technology, and in particular to a shearing machine press foot oil leakage protection device. Background Technology

[0002] A shearing machine is a machine that uses one blade to reciprocate linearly relative to another blade to shear sheet metal. It employs a moving upper blade and a fixed lower blade, with a suitable blade gap, to apply shearing force to metal sheets of various thicknesses, causing the sheet metal to break and separate to the required dimensions.

[0003] As special customers increasingly demand special sheet metal processing from shearing machines (e.g., nickel plates, copper plates), these sheets generally require protection from hydraulic oil contamination. Therefore, leak-proof design is crucial, necessitating effective structural modifications to the shearing machine. Consequently, designing the pressure beam to prevent hydraulic oil leakage from contaminating the sheet metal while maintaining shearing quality is a pressing challenge in this field.

[0004] A shearing machine and a leak-proof oil-pressing device and a plate pressing method are disclosed in CN115971565B. The machine includes a pressing beam with pressing devices installed at both ends. Each pressing device includes a pressing cylinder that lowers the pressing beam, an eccentric guide wheel that guides the beam during movement, and a returning cylinder that raises the beam. Several pressing components for pressing the plate are installed at the bottom of the pressing beam. The returning cylinder and the piston rod of the pressing cylinder are non-rigidly connected to the pressing beam. This design redesigns the pressing beam and cylinder to completely prevent oil leakage from contaminating the processed plate and the worktable. This allows the shearing machine to avoid hydraulic oil leakage contamination of the plate while maintaining the shearing quality when shearing special materials (nickel plates, copper plates).

[0005] The above-mentioned technical solution, packing seal, has a simple structure, low price, and is easy to maintain. However, it suffers from large leakage and high power loss, requiring constant replenishment and replacement, which is not conducive to use. Therefore, improvements are needed. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a protective device for oil leakage from the press foot of a shearing machine.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A shearing machine press foot oil leakage protection device includes a pump shaft with a bushing fitted on it. A rotating ring assembly is detachably connected to one end of the pump shaft. A rotating ring seal is provided through one side of the rotating ring assembly. The pump shaft passes through the rotating ring assembly and the rotating ring seal. A stationary ring assembly is fitted on the bushing. A conical annular groove is provided on one side of the stationary ring assembly. A second annular groove is provided on one end sidewall of the conical annular groove. First annular grooves are provided on opposite sidewalls of the second annular groove. Four mounting slots are provided on one end sidewall of the second annular groove. Pushing mechanisms are provided in the mounting slots. An annular push plate is installed in both the second annular groove and the two first annular grooves. The four pushing mechanisms correspond to the annular push plates. A stationary ring seal is fixed to one side of the annular push plate, and the stationary ring seal abuts against the rotating ring seal.

[0009] Preferably, one end of the pump shaft abuts against a shaft pump sealing cover, a bolt is provided through the shaft pump sealing cover, one end of the pump shaft is provided with a threaded blind hole, one end of the bolt extends into the threaded blind hole, connecting plates are fixed on both sides of the shaft pump sealing cover, screws are provided through the connecting plates, one end of each screw is fixed to one end of the rotating ring assembly, a nut is screwed onto the screw, and the connecting plate is located between the nut and the rotating ring assembly.

[0010] Preferably, the pushing mechanism includes telescopic rods fixed to one side wall of the mounting groove, one end of each of the four telescopic rods being fixed to the other side of the annular push plate, and springs being sleeved on the telescopic rods, with the two ends of the springs respectively fixed to one side wall of the mounting groove and the other side of the annular push plate.

[0011] Preferably, a second sealing gasket ring and a first sealing gasket ring are respectively abutted on opposite sidewalls within the conical annular groove, and the stationary ring sealing ring is located between the second sealing gasket ring and the first sealing gasket ring.

[0012] Preferably, the opposite ends of the two connecting plates are fixed to both sides of the shaft pump sealing cover by welding.

[0013] Preferably, both the second sealing ring and the first sealing ring are made of rubber material.

[0014] The beneficial effects of this utility model are:

[0015] 1. By cooperating with components such as the pushing mechanism, the second sealing ring, the first sealing ring, and the stationary ring sealing ring, the stationary ring sealing ring is always firmly pressed against the moving ring sealing ring, which further improves the sealing effect, effectively extends the service life of the stationary ring sealing ring, reduces costs, and reduces the workload of workers.

[0016] 2. The use of bolts, screws, nuts and other components facilitates quick and easy installation and disassembly, makes it convenient to inspect and maintain the components, and greatly improves the firmness of the connection, thereby ensuring the stability of the device and improving its operational safety.

[0017] In summary, this utility model, through the cooperation of multiple components, ensures that the stationary ring seal always firmly contacts the moving ring seal, which helps to extend the service life of the stationary ring seal. Furthermore, the second sealing gasket and the first sealing gasket further enhance the sealing effect, preventing oil leakage and ensuring the shearing effect of the shearing machine. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the present invention;

[0019] Figure 2 Appendix to this utility model Figure 1 Enlarged view of point A;

[0020] Figure 3 This is a diagram showing the internal structure of the stationary ring assembly of this utility model;

[0021] Figure 4 This is an external structural diagram of the stationary ring assembly of this utility model;

[0022] In the figure: 1. Dynamic ring seal, 2. Dynamic ring assembly, 3. Connecting plate, 4. Screw, 5. Shaft pump seal cover, 6. Threaded blind hole, 7. Bolt, 8. Nut, 9. First sealing gasket ring, 10. Stationary ring assembly, 11. Shaft sleeve, 12. Pump shaft, 13. Mounting groove, 14. Telescopic rod, 15. Spring, 16. Conical ring groove, 17. Second sealing gasket ring, 18. Stationary ring seal, 19. Annular push plate, 20. First annular slide groove, 21. Second annular slide groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-4 A shearing machine press foot oil leakage protection device includes a pump shaft 12, which is a shaft for the shearing machine press foot. A bushing 11 is fitted on the pump shaft 12. One end of the pump shaft 12 is detachably connected to a dynamic ring assembly 2, which facilitates installation and fixation, makes it easy to inspect and maintain various components, and ensures the stable operation of the equipment.

[0025] In this embodiment, a rotating ring seal 1 is provided through one side of the rotating ring assembly 2, which helps to make a sealing connection, improve the sealing effect, and avoid leakage. The pump shaft 12 is provided through the rotating ring assembly 2 and the rotating ring seal 1, and the rotating ring assembly 2 and the rotating ring seal 1 move together with the pump shaft 12.

[0026] In this embodiment, a stationary ring assembly 10 is fitted onto the bushing 11. A conical annular groove 16 is provided on one side of the stationary ring assembly 10. A second annular groove 21 is provided on one end sidewall of the conical annular groove 16. A first annular groove 20 is provided on the opposite sidewall of the second annular groove 21. Four mounting grooves 13 are provided on one end sidewall of the second annular groove 21. A pushing mechanism is provided in the mounting groove 13. An annular push plate 19 is installed in both the second annular groove 21 and the two first annular grooves 20. The four pushing mechanisms correspond to the annular push plate 19. A stationary ring sealing ring 18 is fixed on one side of the annular push plate 19. The stationary ring sealing ring 18 abuts against the rotating ring sealing ring 1. The pushing mechanism can move the annular push plate 19, which can ensure that the stationary ring sealing ring 18 is always firmly in contact with the rotating ring sealing ring 1, which helps to extend the service life of the component and facilitates use.

[0027] In this embodiment, one end of the pump shaft 12 abuts against the shaft pump sealing cover 5, and a bolt 7 is provided through the shaft pump sealing cover 5. One end of the pump shaft 12 is provided with a threaded blind hole 6, and one end of the bolt 7 extends into the threaded blind hole 6. The bolt 7 is conveniently screwed in and fixed, and is convenient for installation and disassembly.

[0028] In this embodiment, connecting plates 3 are fixed on both sides of the shaft pump sealing cover 5. The opposite ends of the two connecting plates 3 are respectively fixed to the two sides of the shaft pump sealing cover 5 by welding. A screw 4 is provided through the connecting plate 3. One end of each screw 4 is fixed to one end of the rotating ring assembly 2. A nut 8 is screwed on the screw 4. The connecting plate 3 is located between the nut 8 and the rotating ring assembly 2. The shaft pump sealing cover 5 and the pump shaft 12 are aligned. The rotating ring assembly 2 is adjusted so that the screw 4 and the connecting plate 3 correspond. Then, the shaft pump sealing cover 5 and the pump shaft 12 are connected and fixed by bolts 7. Finally, the rotating ring assembly 2 and the connecting plate 3 are firmly connected by nuts 8, which can effectively fix the position of the rotating ring assembly 2.

[0029] In this embodiment, the pushing mechanism includes telescopic rods 14 fixed on one side wall of the mounting groove 13. One end of each of the four telescopic rods 14 is fixed on the other side of the annular push plate 19. Springs 15 are sleeved on the telescopic rods 14. The two ends of the springs 15 are respectively fixed on one side wall of the mounting groove 13 and the other side of the annular push plate 19. The springs 15 can push the annular push plate 19, making the stationary ring seal 18 and the moving ring seal 1 come into closer contact. The telescopic rods 14 can make the annular push plate 19 move smoothly.

[0030] In this embodiment, a second sealing gasket 17 and a first sealing gasket 9 respectively abut against opposite sidewalls within the conical annular groove 16. Both the second sealing gasket 17 and the first sealing gasket 9 are made of rubber material. The stationary ring sealing ring 18 is located between the second sealing gasket 17 and the first sealing gasket 9. The moving ring sealing ring 1 abuts against the stationary ring sealing ring 18 and can also abut against the second sealing gasket 17 and the first sealing gasket 9. The second sealing gasket 17 and the first sealing gasket 9 move along the conical annular groove 16 and can firmly abut against the stationary ring sealing ring 18 and the stationary ring assembly 10, thereby improving the sealing quality.

[0031] In this utility model, after the shearing machine press foot is installed, the shaft pump sealing cover 5 and the pump shaft 12 are aligned. The moving ring assembly 2 is adjusted so that the screw 4 and the connecting plate 3 correspond. Then, the shaft pump sealing cover 5 and the pump shaft 12 are connected and fixed by bolts 7. After that, the moving ring assembly 2 and the connecting plate 3 are firmly connected by nuts 8, which can fix the position of the moving ring assembly 2 well. The moving ring sealing ring 1 abuts against the stationary ring sealing ring 18 and can abut against the second sealing gasket ring 17 and the first sealing gasket ring 9. The second sealing gasket ring 17 and the first sealing gasket ring 9 move along the conical ring groove 16, which can firmly abut against the stationary ring sealing ring 18 and the stationary ring assembly 10, improving the sealing quality. At the same time, the spring 15 can push the annular push plate 19, making the stationary ring sealing ring 18 and the moving ring sealing ring 1 abut more tightly. The telescopic rod 14 can make the annular push plate 19 move smoothly, which can effectively avoid oil leakage.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A shearing machine press foot oil leakage protection device, comprising a pump shaft (12), characterized in that: A bushing (11) is fitted on the pump shaft (12). A rotating ring assembly (2) is detachably connected to one end of the pump shaft (12). A rotating ring seal (1) is provided through one side of the rotating ring assembly (2). The pump shaft (12) is connected through the rotating ring assembly (2) and the rotating ring seal (1). A stationary ring assembly (10) is fitted on the bushing (11). A conical annular groove (16) is provided on one side of the stationary ring assembly (10). A second annular groove (21) is provided on one end sidewall of the conical annular groove (16). (21) Each of the opposite sidewalls is provided with a first annular groove (20). The second annular groove (21) has four mounting grooves (13) on one end sidewall. The mounting groove (13) is provided with a pushing mechanism. The second annular groove (21) and the two first annular grooves (20) are jointly installed with an annular push plate (19). The four pushing mechanisms are all corresponding to the annular push plate (19). A stationary ring seal (18) is fixed on one side of the annular push plate (19). The stationary ring seal (18) and the moving ring seal (1) are in contact.

2. The oil leakage protection device for the pressure foot of a shearing machine according to claim 1, characterized in that: One end of the pump shaft (12) abuts against the shaft pump sealing cover (5), and a bolt (7) is provided through the shaft pump sealing cover (5). One end of the pump shaft (12) is provided with a threaded blind hole (6), and one end of the bolt (7) extends into the threaded blind hole (6). Connecting plates (3) are fixed on both sides of the shaft pump sealing cover (5). A screw (4) is provided through the connecting plate (3). One end of each screw (4) is fixed to one end of the moving ring assembly (2). A nut (8) is screwed onto the screw (4). The connecting plate (3) is located between the nut (8) and the moving ring assembly (2).

3. The oil leakage protection device for the pressure foot of a shearing machine according to claim 1, characterized in that: The pushing mechanism includes telescopic rods (14) fixed on one side wall of the mounting groove (13). One end of each of the four telescopic rods (14) is fixed on the other side of the annular push plate (19). A spring (15) is sleeved on the telescopic rod (14). The two ends of the spring (15) are respectively fixed on one side wall of the mounting groove (13) and the other side of the annular push plate (19).

4. The oil leakage protection device for the pressure foot of a shearing machine according to claim 1, characterized in that: The second sealing gasket ring (17) and the first sealing gasket ring (9) respectively abut against each other on opposite side walls of the conical annular groove (16), and the stationary ring sealing ring (18) is located between the second sealing gasket ring (17) and the first sealing gasket ring (9).

5. The oil leakage protection device for the pressure foot of a shearing machine according to claim 2, characterized in that: The opposite ends of the two connecting plates (3) are respectively fixed to the two sides of the shaft pump sealing cover (5) by welding.

6. The oil leakage protection device for the pressure foot of a shearing machine according to claim 4, characterized in that: Both the second sealing ring (17) and the first sealing ring (9) are made of rubber.

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