Water-cooled hydraulic punching and shearing machine

Abstract

The utility model discloses a water-cooled hydraulic punching and shearing machine, which belongs to the technical field of hydraulic punching and shearing machines and comprises a punching and shearing machine body, an oil storage tank and a water cooling system, the oil storage tank and the water cooling system are arranged in the punching and shearing machine body, the oil storage tank is connected with a pipeline of the water cooling system, an air pump is mounted on the punching and shearing machine body, and an air outlet of the air pump is connected with an air inlet pipe. The water cooling system comprises a water inlet pipe, a shell with an inner cavity structure is installed on the water inlet pipe and penetrates through the water inlet pipe, the diameter of the inner wall of the shell is larger than that of the inner wall of the water inlet pipe, one end of the air inlet pipe is connected with the shell, an air outlet is formed in the shell, and a spring is connected to the inner surface of the top wall of the shell. And one end of the spring is connected with a water blocking ball. When the water cooling system leaks cooling water due to factors such as aging of parts, the water pump can be timely prevented from continuously pumping water into the water cooling system, and continuous leakage of the cooling water is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic punching and shearing machines, in particular to a water-cooled hydraulic punching and shearing machine. Background Art

[0002] Hydraulic punching and shearing machines use hydraulic oil for hydraulic transmission. When the hydraulic punching and shearing machine works for a long time, the oil temperature of the hydraulic oil will rise. In order to keep the temperature of the hydraulic oil within a stable range, the hydraulic punching and shearing machine is generally equipped with a water cooling system.

[0003] The water cooling system of the existing water-cooled hydraulic punching and shearing machine is affected by factors such as component aging, and there is a risk of cooling water leakage in the water cooling system. Once the cooling water leaks, it will not only reduce the cooling effect of the hydraulic oil, but also cause damage to the internal structure of the hydraulic punching and shearing machine. Therefore, it is necessary to promptly stop the water pump from continuing to pump water into the water cooling system. Utility Model Content

[0004] The purpose of the utility model is to provide a water-cooled hydraulic punching and shearing machine to solve the following technical problem: when the water cooling system of the water-cooled hydraulic punching and shearing machine leaks cooling water due to factors such as aging of components, the water pump can be stopped in time from continuing to pump water into the water cooling system.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A water-cooled hydraulic punching and shearing machine comprises a punching and shearing machine body, an oil storage tank and a water cooling system arranged in the punching and shearing machine body, and the oil storage tank is connected to the water cooling system pipeline. An air pump is installed on the punching and shearing machine body, and the air outlet of the air pump is connected to the air inlet pipe. The water cooling system comprises a water inlet pipe, and a shell with an internal cavity structure is installed on the water inlet pipe. The shell passes through the water inlet pipe, and the inner wall diameter of the shell is larger than the inner wall diameter of the water inlet pipe. One end of the air inlet pipe is connected to the shell, and an air outlet is provided on the shell. A spring is connected to the inner surface of the top wall of the shell, and one end of the spring is connected to a water blocking ball, and the water blocking ball is close to the inner wall of the shell and is located below the air outlet.

[0007] As a further solution of the present invention: the lower surface of the shell is an arc-shaped structure, and the arc-shaped structure is concentric with the water-blocking ball.

[0008] As a further solution of the present invention: the water cooling system includes a water cooling box installed in the punching and shearing machine body, and a cooling pipe is installed in the water cooling box, and the cooling pipe does not contact the inner wall of the water cooling box.

[0009] As a further solution of the present invention: the cooling pipe is composed of a water pipe and a plurality of heat absorbing plates, and the heat absorbing plates are installed on the water pipe around the outer wall of the water pipe.

[0010] As a further solution of the present invention: the water cooling system includes a water tank installed in the punching and shearing machine body, a water pump and a water outlet pipe are installed on the water tank, the water outlet of the water pump is connected to the water inlet pipe, one end of the cooling pipe is connected to the water inlet pipe, and the other end of the cooling pipe is connected to the water outlet pipe.

[0011] As a further solution of the present invention: the aperture of the water inlet pipe is larger than the aperture of the water outlet pipe.

[0012] As a further solution of the present invention: an oil outlet pipe and an oil inlet pipe are installed on one side of the oil storage tank, and one end of the oil outlet pipe and one end of the oil inlet pipe are both connected to the water cooling box.

[0013] As a further solution of the present invention: the water cooling system includes a water pressure sensor installed on the inner wall of the water inlet pipe and close to the shell.

[0014] As a further solution of the present invention: an alarm is installed on the punching and shearing machine body, and the alarm is connected to the water pressure sensor circuit.

[0015] Beneficial effects of the utility model:

[0016] The utility model discloses that when the cooling water in the water-cooling system of a water-cooled hydraulic punching and shearing machine leaks due to factors such as aging of components, the water-blocking ball can block the passage of cooling water in the water inlet pipe under the action of air pressure generated by the air pump, thereby preventing the water pump from continuing to pump water into the water-cooling system, and avoiding continuous leakage of cooling water under the action of water pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the shell of the utility model;

[0020] Figure 3 This is a schematic diagram of the shutdown state of the utility model;

[0021] Figure 4 This is a schematic diagram of the cooling water leakage state of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the water cooling box of the utility model;

[0023] Figure 6 This is a schematic cross-sectional view of the water cooling box of the present utility model;

[0024] In the figure: 1. Punching and shearing machine body; 2. Water tank; 3. Water cooling box; 4. Oil tank; 5. Oil inlet pipe; 6. Oil outlet pipe; 7. Water inlet pipe; 8. Water pump; 10. Air pump; 11. Air inlet pipe; 12. Shell; 13. Water outlet pipe; 14. Spring; 15. Air outlet; 16. Water-blocking ball; 17. Cooling pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiment of the utility model to clearly and completely describe the technical solutions in the embodiment of the utility model. Obviously, the embodiment described is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, the present invention

[0026] All other embodiments obtained by persons of ordinary skill in the art without creative work are within the scope of protection of this utility model.

[0027] See also Figure 1-6 As shown, the utility model is a water-cooled hydraulic punching and shearing machine, comprising a punching and shearing machine body 1 and an oil storage tank 4 and a water cooling system arranged in the punching and shearing machine body 1, and the oil storage tank 4 is connected to the water cooling system pipeline, an air pump 10 is installed on the punching and shearing machine body 1, and the air outlet of the air pump 10 is connected to the air inlet pipe 11, the water cooling system comprises a water inlet pipe 7, a shell 12 with an internal cavity structure is installed on the water inlet pipe 7, the shell 12 passes through the water inlet pipe 7, and the inner wall diameter of the shell 12 is larger than the inner wall diameter of the water inlet pipe 7, one end of the air inlet pipe 11 is connected to the shell 12, and an outlet is provided on the shell 12. Air outlet 15, the inner surface of the top wall of the shell 12 is connected to a spring 14, one end of the spring 14 is connected to a water-blocking ball 16, and the water-blocking ball 16 is close to the inner wall of the shell 12 and is located below the air outlet 15. When the equipment is working normally, the air pressure generated by the air pump 10 and the water pressure generated by the water pump 8 are balanced in the water inlet pipe 7, so that the water-blocking ball 16 remains stationary. When cooling water leaks in the water cooling system, the water pressure in the water inlet pipe 7 decreases. When the air pressure generated by the air pump 10 remains unchanged, the water-blocking ball 16 blocks the water inlet pipe 7, thereby blocking the water pump 8 from continuing to pump water into the water cooling box 3.

[0028] The lower surface of the shell 12 is an arc-shaped structure, and the arc-shaped structure is concentric with the water-blocking ball 16 , so that the water-blocking ball 16 can fit tightly against the arc-shaped structure, thereby blocking the cooling water from entering the water-cooling box 3 .

[0029] The water cooling system includes a water cooling box 3 installed in the punching and shearing machine body 1. A cooling pipe 17 is installed in the water cooling box 3, and the cooling pipe 17 does not contact the inner wall of the water cooling box 3. Due to the obstruction of the cooling pipe 17, the hydraulic oil and the cooling water can be fully contacted, and the mixing of the hydraulic oil and the cooling water can be avoided.

[0030] The cooling pipe 17 is composed of a water pipe and a plurality of heat absorbing plates, and the heat absorbing plates are installed on the water pipe around the outer wall of the water pipe, so that the cooling water can better cool the hydraulic oil.

[0031] The water cooling system includes a water tank 2 installed in the punching and shearing machine body 1, and a water pump 8 and a water outlet pipe 13 are installed on the water tank 2. The water outlet of the water pump 8 is connected to the water inlet pipe 7, one end of the cooling pipe 17 is connected to the water inlet pipe 7, and the other end of the cooling pipe 17 is connected to the water outlet pipe 13, thereby realizing the circulation of cooling water in the water cooling tank 3.

[0032] The aperture of the water inlet pipe 7 is larger than the aperture of the water outlet pipe 13 , thereby ensuring that the cooling pipe 17 can be filled with cooling water and can fully contact the hydraulic oil in the water cooling box 3 .

[0033] An oil outlet pipe 5 and an oil inlet pipe 6 are installed on one side of the oil storage tank 4. One end of the oil outlet pipe 5 and one end of the oil inlet pipe 6 are both connected to the water cooling box 3, thereby realizing the circulation of hydraulic oil in the water cooling box 3.

[0034] The water cooling system includes a water pressure sensor installed on the inner wall of the water inlet pipe 7 and close to the housing 12. The air pressure generated by the air pump 10 is adjusted according to the water pressure measured by the water pressure sensor to ensure that the water-blocking ball 16 can maintain balance during normal operation.

[0035] An alarm is installed on the punching and shearing machine body, and the alarm is connected to the water pressure sensor circuit. When the water pressure sensor detects abnormal water pressure in the water inlet pipe 7, the alarm will immediately sound an alarm to remind the staff to turn off the power in time.

[0036] The working principle of the utility model is: when the equipment is stopped, the water resistance ball 16 in the housing 12 is located below the air outlet 15 and above the water inlet pipe 7 under the elastic force of the spring 14 (such as Figure 3 shown);

[0037] When the equipment is working, the cooling water in the water tank 2 is returned to the water tank 2 by the water pump 8 through the water inlet pipe 7, the cooling pipe 17 and the water outlet pipe 13 in sequence. At the same time, the hydraulic oil in the oil tank 4 enters the water cooling box 3 through the oil inlet pipe 5 and fully contacts with the cooling water in the cooling pipe 17, thereby reducing the temperature of the hydraulic oil. Then, the hydraulic oil is returned to the oil tank 4 through the oil outlet pipe 6.

[0038] Due to the existence of water pressure, the cooling water will generate an upward thrust on the water-blocking ball 16 at the point where the water inlet pipe 7 is penetrated by the shell 12. The air pressure generated by the air pump 10 enters the shell 12 through the air inlet pipe 11. As the aperture of the air outlet 15 becomes smaller, the gas flow rate will become faster, thereby generating downward pressure on the water-blocking ball 16. According to the water pressure generated by the water pump 8 in the water inlet pipe 7 measured by the water pressure sensor, the air pressure generated by the air pump 10 is adjusted, so that the water-blocking ball 16 reaches a balance under the combined action of water pressure and air pressure (such as Figure 3 shown);

[0039] When the cooling water in the cooling pipe 17 leaks due to factors such as aging and wear, the water pressure in the water inlet pipe 7 will decrease. Under the condition of constant air pressure, the water-blocking ball 16 will move downward until it blocks the water inlet pipe 7 (e.g. Figure 4 As shown), the water pump 8 is prevented from continuing to pump water into the water cooling box 3. At this time, the water pressure sensor detects that the water pressure in the water inlet pipe 7 is abnormal, and the alarm is activated immediately to remind the staff to turn off the power in time.

[0040] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A water-cooled hydraulic punching and shearing machine, comprising a punching and shearing machine body (1), an oil storage tank (4) and a water cooling system arranged in the punching and shearing machine body (1), wherein the oil storage tank (4) is connected to a water cooling system pipeline, characterized in that: An air pump (10) is installed on the punching and shearing machine body (1), and the air outlet of the air pump (10) is connected to an air inlet pipe (11). The water cooling system includes a water inlet pipe (7), and a shell (12) with an internal cavity structure is installed on the water inlet pipe (7). The shell (12) passes through the water inlet pipe (7), and the inner wall diameter of the shell (12) is larger than the inner wall diameter of the water inlet pipe (7). One end of the air inlet pipe (11) is connected to the shell (12), and an air outlet (15) is provided on the shell (12). The inner surface of the top wall of the shell (12) is connected to a spring (14), and one end of the spring (14) is connected to a water-blocking ball (16), and the water-blocking ball (16) is closely attached to the inner wall of the shell (12) and is located below the air outlet (15).

2. A water-cooled hydraulic punching and shearing machine according to claim 1, characterized in that: The lower surface of the shell (12) is an arc-shaped structure, and the arc-shaped structure is concentric with the water-blocking ball (16).

3. The water-cooled hydraulic punching and shearing machine according to claim 1, characterized in that: The water cooling system comprises a water cooling box (3) with an internal cavity structure installed in the punching and shearing machine body (1), a cooling pipe (17) is installed in the water cooling box (3), and the cooling pipe (17) does not contact the inner wall of the water cooling box (3).

4. A water-cooled hydraulic punching and shearing machine according to claim 3, characterized in that: The cooling pipe (17) is composed of a water pipe and a plurality of heat absorbing plates, and the heat absorbing plates are installed on the water pipe around the outer wall of the water pipe.

5. The water-cooled hydraulic punching and shearing machine according to claim 4, characterized in that: The water cooling system comprises a water tank (2) installed in the punching and shearing machine body (1); a water pump (8) and a water outlet pipe (13) are installed on the water tank (2); the water outlet of the water pump (8) is connected to the water inlet pipe (7); one end of the cooling pipe (17) is connected to the water inlet pipe (7); and the other end of the cooling pipe (17) is connected to the water outlet pipe (13).

6. The water-cooled hydraulic punching and shearing machine according to claim 5, characterized in that: The aperture of the water inlet pipe (7) is larger than the aperture of the water outlet pipe (13).

7. The water-cooled hydraulic punching and shearing machine according to claim 1, characterized in that: An oil outlet pipe (5) and an oil inlet pipe (6) are installed on one side of the oil storage tank (4), and one end of the oil outlet pipe (5) and one end of the oil inlet pipe (6) are both connected to the water cooling box (3).

8. The water-cooled hydraulic punching and shearing machine according to claim 1, characterized in that: The water cooling system includes a water pressure sensor installed on the inner wall of the water inlet pipe (7) and close to the housing (12).

9. The water-cooled hydraulic punching and shearing machine according to claim 8, characterized in that: An alarm is installed on the punching and shearing machine body (1), and the alarm is connected to the water pressure sensor circuit.

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