Hydraulic lifting device for mine

Abstract

The utility model discloses a mine hydraulic lifting device which comprises a device base, a supporting frame is arranged above the device base, a hydraulic cylinder is installed at the top end of the supporting frame, a cross arm is installed at the top of the supporting frame in a sliding mode, a winch is installed on one side of the bottom end of the cross arm, a steel cable is wound in the winch, and a hydraulic cylinder is installed at the bottom end of the steel cable. The bottom end of the steel cable extends to the position below the winch and is fixedly provided with a lifting hook, supports are fixed to the two sides of the bottom end of the winch, supporting rods are installed on the outer walls of the supports through rotating shafts, positioning clamping plates are fixed to one ends of the supporting rods, and small motors are installed on the outer walls of the sides, away from the supporting rods, of the supports. According to the utility model, the steel cable is limited and guided, so that the steel cable is not easy to shake in the hoisting process, the hidden dangers of binding loosening, unhooking and falling to hurt people are reduced, the abrasion of the steel cable is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic lifting devices, specifically a hydraulic lifting device for mining. Background Technology

[0002] Hydraulic lifting devices for mining are widely used in mines and mining sites. They are mainly used for lifting and moving various heavy materials and equipment. Driven by a hydraulic system, they are easy to operate, highly flexible, and safe, which can significantly improve production efficiency and ensure work safety.

[0003] Hydraulic lifting devices typically use winches and steel cables to lift goods. However, during the lifting process, the steel cables are prone to swaying. This swaying can cause the center of gravity of the lifted object to shift, leading to loosening of the bindings or even disengagement, posing a risk of falling objects and injuring people. Swaying can also cause the hook or connecting parts to be subjected to asymmetrical tension, increasing the risk of disengagement or rope breakage. Furthermore, during the swaying process, the steel cable repeatedly rubs against components such as pulleys and winch housings, accelerating the wear of the wire rope surface and shortening its service life. Therefore, improvements are urgently needed. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic lifting device for mining to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic lifting device for mining, comprising a device base, a support frame above the device base, a hydraulic cylinder mounted on the top of the support frame, a cross arm slidably mounted on the top of the support frame, a winch mounted on one side of the bottom end of the cross arm, and a steel cable wound inside the winch, the bottom end of the steel cable extending to the bottom of the winch and fixed with a hook, supports fixed on both sides of the bottom end of the winch, a support rod mounted on the outer wall of the support through a rotating shaft, and a positioning clamp fixed at one end of the support rod, a small motor mounted on the outer wall of the support away from the support rod, and the output end of the small motor fixedly connected to the support rod.

[0006] Preferably, the inner wall of the positioning clamp near the steel cable is provided with an arc groove, and the surface of the arc groove is provided with a ball groove, and the inside of the ball groove is provided with guide balls.

[0007] Preferably, a transverse guide rail is fixed to the top of the device base, and a lead screw is installed inside the transverse guide rail. A movable seat is fitted outside the lead screw, and the movable seat is threadedly engaged with the lead screw. The movable seat is fixedly connected to the support frame by bolts, and is used to drive the support frame to move horizontally along the transverse guide rail.

[0008] Preferably, a servo motor is installed on the outer wall of one end of the transverse guide rail, and the output end of the servo motor is fixedly connected to the lead screw to drive the lead screw to rotate.

[0009] Preferably, one end of the cross arm extends to the outside of the support frame and is fixedly connected to the output end of the hydraulic cylinder.

[0010] Preferably, the positioning clamps are provided in two sets and are symmetrically distributed along the steel cable, and the positioning clamps are long strip structures, which facilitates the limiting of the steel cable from both sides.

[0011] Preferably, one end of the guide ball extends to the outside of the ball groove and contacts the outer surface of the steel cable, which facilitates further limiting and guiding of the steel cable.

[0012] Preferably, cylinders are installed on the outer walls of both sides of the device base, and positioning feet are installed at the output end of the cylinders to facilitate positioning of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] During the lifting process, a small motor drives the support rod to rotate, causing the positioning clamps to rotate to both sides of the steel cable. The positioning clamps limit the movement of the steel cable, reducing its sway. Furthermore, the guide balls inside the ball groove contact the outer surface of the steel cable, further positioning and guiding it to keep it vertical. The guide balls and the steel cable make rolling contact, resulting in low frictional resistance. By limiting and guiding the steel cable, the cable is less prone to swaying during lifting, reducing the risk of loosening, disengagement, or falling and causing injury. It also reduces wear and tear on the steel cable, extending its service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the horizontal arm extension structure of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a top view enlarged cross-sectional schematic diagram of the positioning clamp of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the transverse guide rail of this utility model.

[0020] In the diagram: 1. Device base; 2. Transverse guide rail; 3. Movable seat; 4. Support frame; 5. Hydraulic cylinder; 6. Cross arm; 7. Winch; 8. Steel cable; 9. Hook; 10. Cylinder; 11. Positioning support foot; 12. Support; 13. Small motor; 14. Support rod; 15. Positioning clamp; 16. Arc groove; 17. Ball groove; 18. Guide ball; 19. Lead screw; 20. Servo motor. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of this utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-5 An embodiment of this utility model is provided: a hydraulic lifting device for mining, including a device base 1, a support frame 4 is provided above the device base 1, a hydraulic cylinder 5 is installed at the top of the support frame 4, a cross arm 6 is slidably installed at the top of the support frame 4, a winch 7 is installed on one side of the bottom end of the cross arm 6, and a steel cable 8 is wound inside the winch 7, with the bottom end of the steel cable 8 extending to the bottom of the winch 7 and fixed with a hook 9.

[0024] Specifically, when using this device in a mine, goods are hoisted by hook 9 at the bottom of steel cable 8. Then, the winch 7 is controlled to wind up steel cable 8 to lift and hoist the goods upward. The winch 7 is an existing product, and its internal structure and principle will not be described in detail.

[0025] The bottom of the winch 7 is fixed with two supports 12 on both sides. A support rod 14 is installed on the outer wall of the support 12 via a rotating shaft, and a positioning clamp 15 is fixed at one end of the support rod 14. A small motor 13 is installed on the outer wall of the support 12 away from the support rod 14, and the output end of the small motor 13 is fixedly connected to the support rod 14.

[0026] Specifically, the small motor 13 drives the support rod 14 to rotate, causing the positioning clamp 15 to rotate to both sides of the steel cable 8. The positioning clamp 15 limits the steel cable 8, thereby reducing the swaying amplitude of the steel cable 8.

[0027] The inner wall of the positioning clamp 15 near the steel cable 8 is provided with an arc groove 16, and the surface of the arc groove 16 is provided with a ball groove 17, and the inside of the ball groove 17 is provided with a guide ball 18.

[0028] Furthermore, the guide balls 18 inside the ball groove 17 contact the outer surface of the steel cable 8. The guide balls 18 further position and guide the steel cable 8, keeping it in a vertical position. The guide balls 18 and the steel cable 8 are in rolling contact, resulting in low frictional resistance. By limiting and guiding the steel cable 8, the steel cable 8 is less likely to sway during hoisting, reducing the risk of loose binding, disengagement, and falling that could cause injury. It also reduces wear on the steel cable 8 and extends its service life.

[0029] The top of the device base 1 is fixed with a transverse guide rail 2, and a lead screw 19 is installed inside the transverse guide rail 2. A movable seat 3 is fitted on the outside of the lead screw 19. The movable seat 3 is threadedly engaged with the lead screw 19. The movable seat 3 is fixedly connected to the support frame 4 by bolts.

[0030] A servo motor 20 is installed on the outer wall of one end of the transverse guide rail 2, and the output end of the servo motor 20 is fixedly connected to the lead screw 19.

[0031] Specifically, the hydraulic cylinder 5 drives the horizontal arm 6 to extend, thereby adjusting the lateral position of the hoisting. The servo motor 20 drives the lead screw 19 to rotate, causing the movable seat 3 to drive the support frame 4 to move along the transverse guide rail 2, thereby adjusting the longitudinal position of the hoisting and facilitating the hoisting of goods to the required position.

[0032] One end of the cross arm 6 extends to the outside of the support frame 4 and is fixedly connected to the output end of the hydraulic cylinder 5;

[0033] There are two sets of positioning clamps 15, which are symmetrically distributed along the steel cable 8, and the positioning clamps 15 are long strip structures;

[0034] One end of the guide ball 18 extends to the outside of the ball groove 17 and contacts the outer surface of the steel cable 8;

[0035] Cylinders 10 are installed on the outer walls of both sides of the device base 1, and positioning feet 11 are installed at the output end of the cylinders 10. The cylinders 10 drive the feet 11 to move down to the ground to position the device. The bottom of the device base 1 is also equipped with casters to facilitate moving the device.

[0036] In this embodiment, the following steps are taken: First, the goods are hoisted using the hook 9 at the bottom of the steel cable 8. Second, the winch 7 is controlled to wind up the steel cable 8, lifting the goods upwards. The winch 7 is an existing product, and its internal structure and principle will not be described in detail. During the hoisting process, the small motor 13 drives the support rod 14 to rotate, causing the positioning clamp 15 to rotate to both sides of the steel cable 8. The positioning clamp 15 limits the movement of the steel cable 8, reducing its sway. Furthermore, the guide balls 18 inside the ball groove 17 contact the outer surface of the steel cable 8, further positioning the steel cable 8. The guide ball 18 keeps the steel cable 8 in a vertical position, and the guide ball 18 makes rolling contact with the steel cable 8, resulting in low frictional resistance. By limiting and guiding the steel cable 8, it is not easy for the steel cable 8 to sway during the hoisting process, reducing the risk of loose binding, disengagement, falling and injuring people. It also reduces the wear of the steel cable 8 and extends its service life. Then, the hydraulic cylinder 5 drives the horizontal arm 6 to extend, which can adjust the lateral position of the hoisting. The servo motor 20 drives the lead screw 19 to rotate, which causes the movable seat 3 to drive the support frame 4 to move along the transverse guide rail 2, which can adjust the longitudinal position of the hoisting, making it easy to hoist the goods to the required position.

[0037] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A hydraulic lifting device for mining, comprising a device base (1), a support frame (4) disposed above the device base (1), and a hydraulic cylinder (5) mounted on the top of the support frame (4), characterized in that, A cross arm (6) is slidably mounted on the top of the support frame (4). A winch (7) is mounted on one side of the bottom end of the cross arm (6). A steel cable (8) is wound inside the winch (7). The bottom end of the steel cable (8) extends to the bottom of the winch (7) and is fixed with a hook (9). Supports (12) are fixed on both sides of the bottom end of the winch (7). A support rod (14) is mounted on the outer wall of the support (12) through a rotating shaft. A positioning clamp (15) is fixed at one end of the support rod (14). A small motor (13) is mounted on the outer wall of the support (12) away from the support rod (14). The output end of the small motor (13) is fixedly connected to the support rod (14).

2. The hydraulic lifting device for mining according to claim 1, characterized in that: The positioning clamp (15) has an arc groove (16) on the inner wall near the steel cable (8), and the surface of the arc groove (16) is provided with a ball groove (17), and the inside of the ball groove (17) is provided with a guide ball (18).

3. The hydraulic lifting device for mining according to claim 1, characterized in that: The top of the device base (1) is fixed with a transverse guide rail (2), and a lead screw (19) is installed inside the transverse guide rail (2). A movable seat (3) is fitted on the outside of the lead screw (19). The movable seat (3) is threadedly engaged with the lead screw (19). The movable seat (3) is fixedly connected to the support frame (4) by bolts.

4. A hydraulic lifting device for mining according to claim 3, characterized in that: A servo motor (20) is installed on the outer wall of one end of the transverse guide rail (2), and the output end of the servo motor (20) is fixedly connected to the lead screw (19).

5. A hydraulic lifting device for mining according to claim 1, characterized in that: One end of the cross arm (6) extends to the outside of the support frame (4) and is fixedly connected to the output end of the hydraulic cylinder (5).

6. A hydraulic lifting device for mining according to claim 1, characterized in that: The positioning clamps (15) are provided in two sets and are symmetrically distributed along the steel cable (8), and the positioning clamps (15) are long strip structures.

7. A hydraulic lifting device for mining according to claim 2, characterized in that: One end of the guide ball (18) extends to the outside of the ball groove (17) and contacts the outer surface of the steel cable (8).

8. A hydraulic lifting device for mining according to claim 1, characterized in that: Cylinders (10) are installed on the outer walls on both sides of the device base (1), and positioning feet (11) are installed at the output end of the cylinders (10).

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