Nitrogen telescopic grab telescopic mechanism

Abstract

The utility model relates to material grabbing machine technical field discloses a nitrogen telescopic material grabbing machine telescopic mechanism, including first rotary arm, second rotary arm, hinged seat, air cylinder, gas storage tank, gas storage tank and high pressure nitrogen tank, the top of cylinder body is equipped with telescopic dust cover, the bottom of gas storage tank is provided with pressure pump, and high pressure nitrogen tank is provided with air supplement pipe, and the top of gas storage tank is provided with detection pipe, and the detection pipe is provided with electric control pressure gauge. Through the setting of telescopic dust cover and heat preservation sleeve, dust can be prevented from entering the air cylinder during use, the wear of the internal components of the air cylinder is reduced, the service life of the telescopic mechanism is improved, the heat preservation sleeve can reduce the influence of external temperature on gas pressure, improve the stability of the structure in different environments, through the setting of high pressure nitrogen tank and air supplement pipe, when the gas pressure in the gas storage tank is reduced during use, automatic supplement can be carried out, and shutdown is not needed, the continuous working time is improved, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of material handling machine technology, specifically a nitrogen-gas telescopic material handling machine telescopic mechanism. Background Technology

[0002] A material handling machine is a widely used mechanical device in industrial production and logistics scenarios, primarily used for grabbing, handling, and stacking various materials. Material handling machines are typically powered by electricity or hydraulics. Electric material handling machines rely on a motor to convert electrical energy into mechanical energy, driving the transmission system to operate the material handling device. Hydraulic material handling machines use a hydraulic pump to deliver hydraulic oil to various hydraulic cylinders, driving the grab bucket, boom, and other components to achieve the grabbing, lifting, and placement of materials. Hydraulic material handling machines are powerful, flexible, and can adapt to various complex operating conditions.

[0003] Existing telescopic mechanisms for material handling machines generally use hydraulic or pneumatic systems. Nitrogen-driven telescopic cylinder assemblies have become a common telescopic mechanism for material handling machines due to their advantages of fast response, light weight, and less need for frequent starts. However, this type of pneumatic telescopic mechanism still has the following drawbacks: the stability of the gas is not high because it is greatly affected by temperature, which affects the stability of operation; in addition, when using a gas tank for nitrogen circulation, long-term use will cause some air leakage, which requires periodic replenishment. The common method of replenishment is manual, which requires machine shutdown and is time-consuming and labor-intensive. Furthermore, dust in the working environment can enter the cylinder through the piston rod, and dust can wear down the seals, affecting the sealing performance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a nitrogen-powered telescopic material handling machine telescopic mechanism, which improves operational stability, enhances dust prevention capabilities, and enables automatic air replenishment, thereby improving maintenance efficiency.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a telescopic mechanism for a nitrogen telescopic material grabber, comprising a first rotating arm, a second rotating arm, a hinge seat, a cylinder, an air storage box, an air storage tank, and a high-pressure nitrogen tank. The top of the first rotating arm and the bottom of the second rotating arm are connected by a hinge seat. A first rotating seat is installed on the outer wall of the first rotating arm, and a second rotating seat is installed on the outer wall of the second rotating arm. The cylinder is disposed between the first rotating seat and the second rotating seat. The cylinder consists of a cylinder body, a piston rod, and a piston. The top of the cylinder body is equipped with a cover, and the inner wall of the cover is equipped with multiple layers of sealing rings. The outside of the piston rod abuts against the sealing rings. The bottom of the cylinder body has symmetrically distributed air inlet and exhaust ports. The gas storage box is located outside the cylinder, the gas storage tank is located inside the gas storage box, and a fixing box is installed on the top of the gas storage box. The high-pressure nitrogen tank is located inside the fixing box.

[0006] Optionally, a telescopic dust cover is installed on the top of the cylinder body, and the telescopic dust cover is set outside the piston rod. A bottom connecting block is set at the bottom of the cylinder body, and the bottom connecting block is rotatably connected to the first rotating seat. A top connecting block is set at the top of the piston rod, and the top connecting block is rotatably connected to the second rotating seat. An insulation sleeve is set outside the cylinder body.

[0007] Optionally, a slide rail is installed on the inner wall of the gas storage tank, and a clamp is slidably connected inside the slide rail. An elastic pad is provided on the inner wall of the clamp. The gas storage tank is placed between the clamp. An adjusting screw is provided inside the slide rail. The clamp is threadedly connected to the adjusting screw. A rotating handle is provided at the end of the adjusting screw.

[0008] Optionally, a pressure pump is installed at the bottom of the air tank, with its inlet connected to the tank. An inlet pipe and an exhaust pipe are installed on the outer wall of the air tank. The inlet pipe connects to the exhaust pipe of the pressure pump, and the exhaust pipe connects to the inlet port at the bottom of the cylinder. One end of the exhaust pipe connects to the exhaust port at the bottom of the cylinder, and the other end connects to the air tank. Both the inlet and exhaust pipes are equipped with one-way solenoid valves. The air tank is externally insulated.

[0009] Optionally, the mounting box has an internal support frame, the high-pressure nitrogen tank is snapped into the inside of the support frame, and the top of the mounting box has a snap-fit ​​cover.

[0010] Optionally, the high-pressure nitrogen tank is equipped with a gas supply pipe, and a detection pipe is installed on the top of the gas storage tank. The detection pipe is connected to the gas supply pipe, and a one-way solenoid valve is installed on the gas supply pipe. An electronically controlled pressure gauge is installed on the detection pipe.

[0011] This utility model provides a nitrogen-gas telescopic material handling machine telescopic mechanism, which has the following beneficial effects: 1. The telescopic mechanism of this nitrogen telescopic material grabber, through the setting of telescopic dust cover and heat insulation sleeve, can prevent dust from entering the cylinder during use, reduce the wear of internal cylinder components, and improve the service life of the telescopic mechanism. In addition, the heat insulation sleeve can reduce the influence of external temperature on gas pressure and improve the stability of the structure in different environments.

[0012] 2. The telescopic mechanism of this nitrogen telescopic material grabber, through the setting of a high-pressure nitrogen tank and a gas replenishment pipe, can automatically replenish the gas when the gas pressure in the storage tank drops during use, without the need to stop the machine, thereby increasing the continuous working time and improving maintenance efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a schematic diagram of the rear view structure of the cylinder of this utility model; Figure 4 This is a schematic diagram of the internal structure of the cylinder of this utility model; Figure 5 This is a schematic diagram of the connection structure between the gripper and the gas storage tank of this utility model; Figure 6 This utility model Figure 4 Enlarged structural diagram of section A in the middle; In the diagram: 1. First rotating arm; 2. Second rotating arm; 3. Hinge seat; 4. First rotating seat; 5. Second rotating seat; 6. Cylinder; 61. Cylinder body; 62. Piston rod; 63. Piston; 64. Bottom connecting block; 65. Top connecting block; 66. Insulation sleeve; 67. Telescopic dust cover; 7. Gas storage box; 8. Gas storage tank; 9. Gripper; 10. Elastic pad; 11. Slide rail; 13. Rotating handle; 14. High-pressure nitrogen tank; 15. Fixing box; 16. Gas supply pipe; 17. Detection pipe; 18. Pressure pump; 19. Inlet pipe; 20. Exhaust pipe; 21. Electrically controlled pressure gauge. Detailed Implementation

[0014] 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.

[0015] Example 1 Please see Figures 1 to 6 The present invention provides a technical solution for a nitrogen telescopic material handling machine telescopic mechanism, comprising a first rotating arm 1, a second rotating arm 2, a hinge seat 3, a cylinder 6, an air storage box 7, an air storage tank 8, and a high-pressure nitrogen tank 14. The top of the first rotating arm 1 and the bottom of the second rotating arm 2 are connected by the hinge seat 3. A first rotating seat 4 is installed on the outer wall of the first rotating arm 1, and a second rotating seat 5 is installed on the outer wall of the second rotating arm 2. The cylinder 6 is disposed between the first rotating seat 4 and the second rotating seat 5. The cylinder 6 consists of a cylinder body 61, a piston rod 62 and a piston 63. The top of the cylinder body 61 is provided with a cover, and the inner wall of the cover is provided with multiple layers of sealing rings. The outside of the piston rod 62 abuts against the sealing rings. The bottom of the cylinder body 61 has symmetrically distributed air inlet and exhaust ports. The gas storage box 7 is located outside the cylinder 6, the gas storage tank 8 is located inside the gas storage box 7, the top of the gas storage box 7 is provided with a fixing box 15, and the high-pressure nitrogen tank 14 is located inside the fixing box 15.

[0016] A telescopic dust cover 67 is installed on the top of the cylinder body 61. The telescopic dust cover 67 is located outside the piston rod 62. A bottom connecting block 64 is provided at the bottom of the cylinder body 61. The bottom connecting block 64 is rotatably connected to the first rotating seat 4. A top connecting block 65 is provided on the top of the piston rod 62. The top connecting block 65 is rotatably connected to the second rotating seat 5. An insulation sleeve 66 is provided on the outside of the cylinder body 61.

[0017] A pressure pump 18 is installed at the bottom of the air tank 8, and the inlet end of the pressure pump 18 is connected to the air tank 8. An air inlet pipe 19 and an exhaust pipe 20 are installed on the outer wall of the air storage tank 7. The inlet end of the air inlet pipe 19 is connected to the exhaust end of the pressure pump 18, and the exhaust end of the air inlet pipe 19 is connected to the air inlet at the bottom of the cylinder 61. One end of the exhaust pipe 20 is connected to the exhaust port at the bottom of the cylinder 61, and the other end of the exhaust pipe 20 is connected to the air tank 8. Both the air inlet pipe 19 and the exhaust pipe 20 are equipped with one-way solenoid valves. The exterior of the air tank 8 is covered with a heat insulation layer.

[0018] Specifically, during use, compressed nitrogen is filled into the gas tank 8, and the gas tank 8 is connected to the cylinder body 61 of the cylinder 6 through the air inlet pipe 19 and the exhaust pipe 20. In addition, a pressure pump 18 is installed at the end of the air inlet pipe 19. When the telescopic mechanism is extended, the pressure pump 18 introduces the compressed nitrogen inside the gas tank 8 into the cylinder body 61 through the air inlet pipe 19. The high-pressure nitrogen pushes the piston 63 and piston rod 62 to move upward. Under the action of the top connecting block 65 at the end of the piston rod 62 hinged to the second rotating seat 5, the second rotating arm 2 is driven to rotate outward around the hinge seat 3, so that the included angle between the first rotating arm 1 and the second rotating arm 2 increases. In addition, when the piston rod 62 moves, the telescopic dust cover 67 is telescopically designed so that the piston rod 62 is always inside the telescopic dust cover 67, which provides dust protection for the piston rod 62 and the connection between the piston rod 62 and the cylinder body 61, preventing dust from entering the cylinder body 61 and causing wear to the internal components, thereby improving the service life of the cylinder 6.

[0019] In addition, when the piston rod 62 retracts, the one-way solenoid valve on the exhaust pipe 20 is opened to allow the compressed nitrogen inside the cylinder 61 to be discharged back into the gas storage tank 8 for recycling. Since the telescopic mechanism is located on the outside and the gas is affected by thermal expansion and contraction, the gas pressure may be unstable. Therefore, an insulation sleeve 66 is installed on the outside of the cylinder 61 to reduce the impact of temperature on gas pressure and improve the stability of use.

[0020] During use, the telescopic dust cover 67 and the heat insulation sleeve 66 are used to protect the telescopic mechanism and improve its stability. The gripper 9 fixes the gas tank 8, which makes it easy to disassemble and maintain the gas tank 8 regularly, thus improving the convenience of maintenance.

[0021] Example 2 Please see Figure 3 and Figure 6 The present invention provides a technical solution in which a bracket is provided inside the fixing box 15, the high-pressure nitrogen tank 14 is snapped into the inside of the bracket, the top of the fixing box 15 is provided with a snap-fit ​​cover plate, the high-pressure nitrogen tank 14 is provided with a gas supply pipe 16, the top of the gas storage tank 8 is provided with a detection pipe 17, the detection pipe 17 is connected to the gas supply pipe 16, the gas supply pipe 16 is provided with a one-way solenoid valve, and the detection pipe 17 is provided with an electronically controlled pressure gauge 21.

[0022] Specifically, since gas leaks may occur in the gas storage tank 8 and cylinder 6 during long-term use, gas replenishment is required. A high-pressure nitrogen tank 14 and a gas replenishment pipe 16 are installed on the top of the gas storage tank 8. The pressure inside the gas storage tank 8 can be monitored in real time by the electronically controlled pressure gauge 21 on the detection pipe 17. When the pressure inside the gas storage tank 8 is insufficient, the one-way solenoid valve on the gas replenishment pipe 16 is opened to replenish nitrogen from the high-pressure nitrogen tank 14 into the gas storage tank 8. When the pressure reaches the specified pressure, the one-way solenoid valve on the gas replenishment pipe 16 is closed to complete the automatic gas replenishment.

[0023] When in use, the above method can automatically replenish air to the telescopic mechanism, greatly reducing the number of downtime maintenance and achieving the goal of improving work efficiency.

[0024] 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 telescopic mechanism for a nitrogen telescopic material handling machine, comprising a first rotating arm (1), a second rotating arm (2), a hinge seat (3), a cylinder (6), an air storage box (7), an air storage tank (8), and a high-pressure nitrogen tank (14), characterized in that: The top of the first rotating arm (1) and the bottom of the second rotating arm (2) are connected by a hinge seat (3). A first rotating seat (4) is installed on the outer wall of the first rotating arm (1), and a second rotating seat (5) is installed on the outer wall of the second rotating arm (2). A cylinder (6) is located between the first rotating seat (4) and the second rotating seat (5). The cylinder (6) consists of a cylinder body (61), a piston rod (62) and a piston (63). The top of the cylinder body (61) is provided with a cover, and the inner wall of the cover is provided with multiple layers of sealing rings. The outside of the piston rod (62) abuts against the sealing rings. The bottom of the cylinder body (61) is symmetrically distributed with an air inlet and an exhaust outlet. The gas storage box (7) is located outside the cylinder (6), the gas storage tank (8) is located inside the gas storage box (7), the top of the gas storage box (7) is provided with a fixing box (15), and the high-pressure nitrogen tank (14) is located inside the fixing box (15).

2. The telescopic mechanism of a nitrogen telescopic material handling machine according to claim 1, characterized in that: A telescopic dust cover (67) is installed on the top of the cylinder (61). The telescopic dust cover (67) is located outside the piston rod (62). A bottom connecting block (64) is provided at the bottom of the cylinder (61). The bottom connecting block (64) is rotatably connected to the first rotating seat (4). A top connecting block (65) is provided on the top of the piston rod (62). The top connecting block (65) is rotatably connected to the second rotating seat (5). An insulation sleeve (66) is provided on the outside of the cylinder (61).

3. The telescopic mechanism of a nitrogen telescopic material handling machine according to claim 1, characterized in that: A slide rail (11) is installed on the inner wall of the gas storage box (7). A clamp (9) is slidably connected inside the slide rail (11). An elastic pad (10) is provided on the inner wall of the clamp (9). The gas storage tank (8) is located between the clamps (9). An adjusting screw is provided inside the slide rail (11). The clamp (9) is threadedly connected to the adjusting screw. A rotating handle (13) is provided at the end of the adjusting screw.

4. The telescopic mechanism of a nitrogen telescopic material handling machine according to claim 1, characterized in that: A pressure pump (18) is installed at the bottom of the gas storage tank (8). The air inlet of the pressure pump (18) is connected to the gas storage tank (8). An air inlet pipe (19) and an exhaust pipe (20) are installed on the outer wall of the gas storage box (7). The air inlet of the air inlet pipe (19) is connected to the exhaust of the pressure pump (18). The exhaust of the air inlet pipe (19) is connected to the air inlet at the bottom of the cylinder (61). One end of the exhaust pipe (20) is connected to the exhaust port at the bottom of the cylinder (61). The other end of the exhaust pipe (20) is connected to the gas storage tank (8). A one-way solenoid valve is installed on both the air inlet pipe (19) and the exhaust pipe (20). An insulation layer is installed on the outside of the gas storage tank (8).

5. The telescopic mechanism of a nitrogen telescopic material handling machine according to claim 1, characterized in that: The fixed box (15) is equipped with a bracket inside, and the high-pressure nitrogen tank (14) is snapped into the inside of the bracket. The fixed box (15) is equipped with a snap-on cover plate on the top.

6. The telescopic mechanism of a nitrogen telescopic material handling machine according to claim 1, characterized in that: The high-pressure nitrogen tank (14) is equipped with a gas supply pipe (16), and the top of the gas storage tank (8) is equipped with a detection pipe (17). The detection pipe (17) is connected to the gas supply pipe (16). A one-way solenoid valve is installed on the gas supply pipe (16), and an electric pressure gauge (21) is installed on the detection pipe (17).

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