Hydraulic mechanical safety device

Abstract

The invention belongs to the technical field of hydraulic machinery, and discloses a hydraulic machinery safety device which comprises a base, a U-shaped support is fixedly mounted on the surface of the base, hydraulic cylinders are symmetrically arranged on the support in a penetrating mode, a lower pressing plate is fixedly connected to the ends of the hydraulic cylinders, and a blade is fixedly inserted into the bottom of the lower pressing plate. The device is provided with the guide rods, a transmission rod, air spraying holes and the like, when the device is used, the output end of the hydraulic cylinder drives the guide cylinders to move downwards on the guide rods through the lower pressing plate, the transmission rod downwards extrudes air in the guide rods, the air spraying holes are formed in the guide rods, the air spraying holes are formed in the guide rods, and the air spraying holes are formed in the guide rods. According to the gantry type hydraulic shearing machine, air flow is sprayed outwards through the air spraying holes, then accumulated metal chippings are cleaned, the sponge layer is extruded downwards after the blades complete shearing, the blades are wiped through overflowing clean water, then the temperature of the blades is lowered, and then the problem that fire disasters happen to the gantry type hydraulic shearing machine is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydraulic machinery, and particularly relates to a safety device for hydraulic machinery. Background Art

[0002] At present, a large amount of sheared metal materials are required in the fields of metal processing, automobile manufacturing and electronic industry. Therefore, most manufacturers mostly use hydraulic shears to process metal materials, taking advantage of the high production efficiency and accurate shearing effect of hydraulic shears to meet the demand for a large number of metal materials.

[0003] When a gantry-type hydraulic shear shears metal, metal chips will accumulate on the workbench surface. If the metal material to be sheared is a metal such as aluminum or magnesium with flammable properties, during the shearing process, due to the long-term friction between the blade and the metal material, its surface temperature will gradually increase over time. Moreover, during the shearing process, when the blade makes contact with the metal material for shearing, a small amount of sparks are also easily generated. When the high-temperature blade comes into contact with the sheet metal chips with a relatively low ignition point piled up on one side multiple times, or a small amount of sparks fall into the piled-up metal chips, it is extremely easy to induce the spontaneous combustion of metal chips such as aluminum and magnesium, thereby triggering a fire. Summary of the Invention

[0004] The purpose of the present invention is to provide a safety device for hydraulic machinery to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A safety device for hydraulic machinery includes a base. A U-shaped bracket is fixedly installed on the surface of the base. Hydraulic cylinders are symmetrically arranged through the bracket. The end of the hydraulic cylinder is fixedly connected with a lower pressing plate. A blade is inserted and fixed at the bottom of the lower pressing plate. Guide cylinders are symmetrically installed on both sides of the lower pressing plate. A hollow guide rod is inserted into the guide cylinder. Both ends of the guide rod are fixedly connected with the inner wall of the bracket and the top surface of the base respectively. A sliding hole is formed on the side of the guide rod close to the lower pressing plate. A connecting plate is arranged on the inner wall of the guide cylinder. The connecting plate is slidably arranged in the sliding hole. The other end of the connecting plate is fixedly connected with a transmission rod. The transmission rod is slidably arranged inside the guide rod. A second sealing sleeve is sleeved on the end of the transmission rod away from the hydraulic cylinder. Air spraying holes are equidistantly arranged on the inner wall of the guide rod close to the base.

[0006] Preferably, a water tank is arranged inside the base. A sponge layer is inserted at the water inlet of the water tank. The top surface of the sponge layer is flush with the top surface of the base. The sponge layer is located directly below the blade and is used to wrap the shearing end of the blade. Blocking plates are equidistantly and symmetrically installed inside the water tank and are used to clamp and fix the sponge layer.

[0007] Preferably, a screen is sleeved on the outer wall of one end of the guide rod close to the base, and the screen is used to cover the air injection holes.

[0008] Preferably, a U-shaped auxiliary plate is arranged between the guide rods. The auxiliary plate is located above the lower pressing plate, and connecting rods are symmetrically installed at both ends of the auxiliary plate. The other ends of the connecting rods are fixedly connected to the inner wall of the bracket. Through holes are symmetrically formed in the auxiliary plate, and transparent plastic rings are symmetrically installed on the surface of the auxiliary plate. The output end of the hydraulic cylinder passes through the transparent plastic rings and the through holes and then is connected to the lower pressing plate. The inside of the transparent plastic rings and the through holes is filled with absorbent cloth, and the absorbent cloth is in contact with the output end of the hydraulic cylinder.

[0009] Preferably, a U-shaped blocking plate is fixedly installed on one side of the outer wall of the transparent plastic ring, a color sensor is fixedly installed inside the blocking plate, the detection end of the color sensor faces the absorbent cloth, and a warning lamp is fixedly installed at the center of the surface of the auxiliary plate.

[0010] Preferably, hollow extrusion cylinders are symmetrically installed on both sides of the inner wall of the auxiliary plate, and L-shaped air outlet holes are symmetrically formed on both sides of the inside of the auxiliary plate. The air inlet of the air outlet hole is located directly above the extrusion cylinder. L-shaped extrusion rods are symmetrically installed on both sides of the lower pressing plate. The end of the extrusion rod is slidably arranged inside the extrusion cylinder, and a first sealing sleeve is fixedly installed at one end of the extrusion rod close to the extrusion cylinder.

[0011] Preferably, a connection hole is formed inside the extrusion rod, a T-shaped prompt rod is slidably arranged inside the connection hole, the prompt rod is perpendicular to the base, and a spring is arranged between the prompt rod and the connection hole. Both ends of the spring are fixedly connected to the top surface of the prompt rod and the inner wall of the connection hole respectively.

[0012] Preferably, the distance between the prompt rod and the base is less than the distance between the blade and the base, and a rubber layer is wrapped on the outer wall of the prompt rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] (1) The present invention is provided with guide rods, transmission rods, air injection holes, etc. During use, the output end of the hydraulic cylinder will drive the guide cylinder to move downward above the guide rods through the lower pressing plate, so that the transmission rod squeezes the air inside the guide rod downward, and the air flow is ejected outward through the air injection holes, thereby cleaning the accumulated metal chips. After the blade completes shearing, it will squeeze the sponge layer downward, and use the overflowing clean water to wipe the blade, thereby reducing the temperature of the blade, and further reducing the problem of fire occurrence in the gantry hydraulic shearing machine.

[0015] (2) The present invention is provided with a transparent plastic ring, a water-absorbing cloth, a color sensor, etc. When in use, the output end of the hydraulic cylinder will slide inside the transparent plastic ring, so that the leaked hydraulic oil will come into contact with the water-absorbing cloth inside the transparent plastic ring. As the adsorption time increases, the color of the water-absorbing cloth will gradually change. At this time, the installed color sensor is used to detect the color change of the water-absorbing cloth in real time. If the color change is large, the warning light will be started synchronously to remind the maintenance personnel to carry out maintenance. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a front view of the present invention;

[0018] Figure 3 is a sectional view of the present invention;

[0019] Figure 4 is a connection diagram of the guide rod and the guide cylinder of the present invention;

[0020] Figure 5 is a structural diagram of the auxiliary plate of the present invention;

[0021] Figure 6 is Figure 3 an enlarged view of part A in

[0022] Figure 7 is Figure 5 an enlarged view of part B in

[0023] In the figure: 1, lower pressing plate; 2, hydraulic cylinder; 3, connecting rod; 4, color sensor; 5, auxiliary plate; 6, sliding hole; 7, prompting rod; 8, screen; 9, base; 10, sponge layer; 11, guide rod; 12, blade; 13, guide cylinder; 14, bracket; 15, warning light; 16, water tank; 17, blocking plate; 18, extrusion cylinder; 19, connection hole; 20, spring; 21, blocking plate; 22, extrusion rod; 23, first sealing sleeve; 24, air outlet hole; 25, connecting plate; 26, transmission rod; 27, second sealing sleeve; 28, air spraying hole; 29, water-absorbing cloth; 30, transparent plastic ring; 31, through hole. Detailed Embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer toFigures 1-4 and Figure 6 As shown in Figure 6 , the present invention provides the following technical solution: A hydraulic mechanical safety device includes a base 9. A U-shaped bracket 14 is fixedly installed on the surface of the base 9. Hydraulic cylinders 2 are symmetrically penetrated through the bracket 14. The end of the hydraulic cylinder 2 is fixedly connected to a lower pressing plate 1. A blade 12 is inserted and fixed at the bottom of the lower pressing plate 1. And guide cylinders 13 are symmetrically installed on both sides of the lower pressing plate 1. A hollow guide rod 11 is penetrated through the inside of the guide cylinder 13. Both ends of the guide rod 11 are fixedly connected to the inner wall of the bracket 14 and the top surface of the base 9 respectively. And a sliding hole 6 is opened on one side of the guide rod 11 close to the lower pressing plate 1. A connecting plate 25 is arranged on the inner wall of the guide cylinder 13. The connecting plate 25 is slidably arranged in the sliding hole 6. And the other end of the connecting plate 25 is fixedly connected to a transmission rod 26. The transmission rod 26 is slidably arranged inside the guide rod 11. And a second sealing sleeve 27 is sleeved on one end of the transmission rod 26 away from the hydraulic cylinder 2. The inner wall of one end of the guide rod 11 close to the base 9 is equally spaced with air jet holes 28. A water tank 16 is opened inside the base 9. A sponge layer 10 is inserted at the water inlet of the water tank 16. The top surface of the sponge layer 10 is flush with the top surface of the base 9. And the sponge layer 10 is located directly below the blade 12. The sponge layer 10 is used to wrap the shearing end of the blade 12. Blocking plates 17 are equally spaced and symmetrically installed inside the water tank 16. The blocking plates 17 are used to clamp and fix the sponge layer 10. A screen 8 is sleeved on the outer wall of one end of the guide rod 11 close to the base 9. The screen 8 is used to cover the air jet holes 28.

[0026] Through the above technical solution, when in use, the output end of the hydraulic cylinder 2 will drive the lower pressing plate 1 and the blade 12 at the bottom of the lower pressing plate 1 to move downward. The movement of the lower pressing plate 1 will drive the guide cylinder 13 to move downward along the lower direction of the guide rod 11. While moving, the guide cylinder 13 will drive the transmission rod 26 to be pressed downward inside the guide rod 11 through the connecting rod 3. Using the second sealing sleeve 27 to compress the air inside the guide rod 11, so that it is ejected outward through the air jet holes 28 at the bottom of the guide rod 11, and the air flow is used to blow away the metal chips accumulated on both sides of the sheared object.

[0027] In addition, when the blade 12 finishes shearing, it will contact the lower sponge layer 10. Since the sponge layer 10 is clamped inside the water tank 16 by the blocking plate 17, the sponge layer 10 will gradually absorb clear water until the sponge layer 10 is fully moistened. When the high-temperature blade 12 contacts the moistened sponge layer 10, the overflowing clear water is used to wipe the blade 12 to reduce the temperature of the blade 12. At the same time, the setting of the sponge layer 10 also fills the opening of the water tank 16, so that the sheared metal chips will not fall into the inside of the water tank 16.

[0028] When the blade 12 resets, the external air will be re-injected into the inside of the guide rod 11 through the air jet holes 28. At this time, the arranged screen 8 is used to block the metal chips in the air to prevent the air jet holes 28 from being blocked.

[0029] Further, a U-shaped auxiliary plate 5 is arranged between the guide rods 11. The auxiliary plate 5 is located above the lower pressing plate 1, and connecting rods 3 are symmetrically installed at both ends of the auxiliary plate 5. The other ends of the connecting rods 3 are fixedly connected to the inner wall of the bracket 14. Through holes 31 are symmetrically formed in the auxiliary plate 5, and transparent plastic rings 30 are symmetrically installed on the surface of the auxiliary plate 5. The output end of the hydraulic cylinder 2 passes through the transparent plastic ring 30 and the through hole 31 and then is connected to the lower pressing plate 1. A water-absorbing cloth 29 is filled in the transparent plastic ring 30 and the through hole 31. The water-absorbing cloth 29 contacts the output end of the hydraulic cylinder 2. A U-shaped baffle 21 is fixedly installed on one side of the outer wall of the transparent plastic ring 30. A color sensor 4 is fixedly installed inside the baffle 21. The detection end of the color sensor 4 faces the water-absorbing cloth 29. A warning lamp 15 is fixedly installed at the center of the surface of the auxiliary plate 5.

[0030] Please refer to Figures 1-3 、 Figure 5 and Figure 7 When in use, the output end of the hydraulic cylinder 2 will slide inside the transparent plastic ring 30 and the through hole 31 on the auxiliary plate 5. At this time, the water-absorbing cloth 29 will contact the outer wall of the output end of the hydraulic cylinder 2. If the hydraulic cylinder 2 has a leakage problem, the leaked hydraulic oil will also contact the water-absorbing cloth 29 and be adsorbed by the water-absorbing cloth 29 to prevent the hydraulic oil from penetrating downward. As the adsorption time increases, the color of the water-absorbing cloth 29 will gradually change. At this time, the installed color sensor 4 is used to detect the color change of the water-absorbing cloth 29 in real time. If the color change is large, the warning lamp 15 is synchronously started to remind the maintenance personnel to perform maintenance, preventing the hydraulic oil from dripping near the sheared object and preventing flammable substances from being generated near the sheared object.

[0031] In addition, the installed baffle 21 cooperates with the auxiliary plate 5 to wrap the color sensor 4. While protecting the color sensor 4, it can also prevent dust from covering the end of the color sensor 4 and causing false alarms.

[0032] Further, hollow extrusion cylinders 18 are symmetrically installed on both sides of the inner wall of the auxiliary plate 5, and L-shaped air outlet holes 24 are symmetrically formed on both sides of the inside of the auxiliary plate 5. The air inlet of the air outlet hole 24 is located directly above the extrusion cylinder 18. L-shaped extrusion rods 22 are symmetrically installed on both sides of the lower pressing plate 1. The end of the extrusion rod 22 is slidably arranged inside the extrusion cylinder 18, and a first sealing sleeve 23 is fixedly installed at the end of the extrusion rod 22 close to the extrusion cylinder 18.

[0033] Please refer to Figures 1-3 and Figure 6When the lower pressing plate 1 moves upward and resets under the action of the hydraulic cylinder 2, the extrusion rod 22 will move upward synchronously, so that the first sealing sleeve 23 at the end of the extrusion rod 22 is embedded into the interior of the extrusion cylinder 18, and then the air inside the extrusion cylinder 18 is extruded, so that the air inside the extrusion cylinder 18 is ejected downward from the bottom of the auxiliary plate 5 through the air outlet hole 24, and in cooperation with the guide rod 11 and the air jet holes 28, the metal debris on the entire workbench surface is cleaned, further reducing the possibility of fire occurrence.

[0034] Further, a connection hole 19 is formed inside the extrusion rod 22, and a T-shaped prompt rod 7 is slidably arranged inside the connection hole 19. The prompt rod 7 is perpendicular to the base 9, and a spring 20 is arranged between the prompt rod 7 and the connection hole 19. Two ends of the spring 20 are respectively fixedly connected to the top surface of the prompt rod 7 and the inner wall of the connection hole 19. The distance between the prompt rod 7 and the base 9 is smaller than the distance between the blade 12 and the base 9, and a rubber layer is wrapped on the outer wall of the prompt rod 7.

[0035] Please refer to Figures 1-3 and Figure 6 When the lower pressing plate 1 moves downward, the extrusion rod 22 will also move downward synchronously. Since the prompt rod 7 is located below the blade 12, when the operator's hand is located below the blade 12, the prompt rod 7 will come into contact with the arm first and gradually compress the spring 20 as the downward pressing progresses. Under the action of the elastic force of the spring 20, the prompt rod 7 will gradually increase the downward pressure, so that the pressure received by the arm gradually increases, thus achieving the effect of warning and reminding. When the blade 12 resets, under the action of the spring 20, the prompt rod 7 will be pushed away from the connection hole 19 to ensure that the prompt rod 7 can come into contact with the arm first during the next shearing to achieve the prompt effect. At the same time, under normal circumstances, the downward pressing of the prompt rod 7 will also squeeze and fix the shearing object from the front and back sides of the blade 12, improving the shearing accuracy.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic machinery safety device, characterized in that : It comprises a base (9), a U-shaped bracket (14) is fixedly installed on the surface of the base (9), a hydraulic cylinder (2) is symmetrically arranged on the bracket (14), a lower pressure plate (1) is fixedly connected to the end of the hydraulic cylinder (2), a blade (12) is inserted and fixed at the bottom of the lower pressure plate (1), and guide cylinders (13) are symmetrically installed on both sides of the lower pressure plate (1), a hollow guide rod (11) is passed through the inside of the guide cylinder (13), and the two ends of the guide rod (11) are respectively fixedly connected to the inner wall of the bracket (14) and the top surface of the base (9), and the guide rod (11) A sliding hole (6) is provided on one side close to the lower pressure plate (1), and a connecting plate (25) is provided on the inner wall of the guide cylinder (13). The connecting plate (25) is slidably provided in the sliding hole (6), and the other end of the connecting plate (25) is fixedly connected to a transmission rod (26), and the transmission rod (26) is slidably provided inside the guide rod (11), and a second sealing sleeve (27) is sleeved on one end of the transmission rod (26) away from the hydraulic cylinder (2), and jet holes (28) are provided at equal intervals on the inner wall of one end of the guide rod (11) close to the base (9).

2. A hydraulic machinery safety device according to claim 2, characterized in that A water trough (16) is provided inside the base (9), a sponge layer (10) is inserted at the water inlet of the water trough (16), the top surface of the sponge layer (10) is flush with the top surface of the base (9), and the sponge layer (10) is located directly below the blade (12), the sponge layer (10) is used to wrap the shearing end of the blade (12), and blocking plates (17) are symmetrically installed at equal intervals inside the water trough (16), and the blocking plates (17) are used to clamp and fix the sponge layer (10).

3. A hydraulic machinery safety device according to claim 3, characterized in that A gauze net (8) is sleeved on the outer wall of one end of the guide rod (11) close to the base (9), and the gauze net (8) is used to cover the air injection hole (28).

4. A hydraulic machinery safety device according to claim 2, characterized in that A U-shaped auxiliary plate (5) is arranged between the guide rods (11), the auxiliary plate (5) is located above the lower pressure plate (1), and connecting rods (3) are symmetrically installed at both ends of the auxiliary plate (5), and the other end of the connecting rod (3) is fixedly connected to the inner wall of the bracket (14), and through holes (31) are symmetrically opened on the auxiliary plate (5), and a transparent plastic ring (30) is symmetrically installed on the surface of the auxiliary plate (5), and the output end of the hydraulic cylinder (2) passes through the transparent plastic ring (30) and the through hole (31) and is connected to the lower pressure plate (1), and the transparent plastic ring (30) and the through hole (31) are filled with absorbent cloth (29), and the absorbent cloth (29) is in contact with the output end of the hydraulic cylinder (2).

5. A hydraulic machinery safety device according to claim 4, characterized in that A U-shaped baffle plate (21) is fixedly mounted on one side of the outer wall of the transparent plastic ring (30), a color sensor (4) is fixedly mounted inside the baffle plate (21), a detection end of the color sensor (4) faces the absorbent cloth (29), and a warning light (15) is fixedly mounted in the center of the surface of the auxiliary plate (5).

6. A hydraulic machinery safety device according to claim 4, characterized in that : A hollow extrusion cylinder (18) is symmetrically installed on both sides of the inner wall of the auxiliary plate (5), and L-shaped air outlet holes (24) are symmetrically opened on both sides of the interior of the auxiliary plate (5), and the air inlet of the air outlet hole (24) is located directly above the extrusion cylinder (18). L-shaped extrusion rods (22) are symmetrically installed on both sides of the lower pressure plate (1), and the end of the extrusion rod (22) is slidably arranged inside the extrusion cylinder (18), and a first sealing sleeve (23) is fixedly installed on one end of the extrusion rod (22) close to the extrusion cylinder (18).

7. A hydraulic machinery safety device according to claim 6, characterized in that A connecting hole (19) is provided inside the extrusion rod (22), a T-shaped prompt rod (7) is slidably provided inside the connecting hole (19), the prompt rod (7) is perpendicular to the base (9), and a spring (20) is provided between the prompt rod (7) and the connecting hole (19), and two ends of the spring (20) are respectively fixedly connected to the top surface of the prompt rod (7) and the inner wall of the connecting hole (19).

8. A hydraulic machinery safety device according to claim 7, characterized in that The distance between the prompt rod (7) and the base (9) is smaller than the distance between the blade (12) and the base (9), and the outer wall of the prompt rod (7) is wrapped with a rubber layer.

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