Lifting device of raise boring machine
By designing a lifting and lowering device for the raise boring rig and using a motor to drive the screw to rotate to achieve the lifting and lowering of the universal wheel, the problem of the raise boring rig requiring large lifting equipment to be transported is solved, achieving efficient and convenient movement and reducing costs.
Patent Information
- Application Number
- CN202423145651.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-12-19
AI Technical Summary
The raise boring rig requires large lifting equipment for transportation during the movement process, resulting in high transportation costs and inconvenience.
A raising and lowering device for a raise boring rig was designed, which included a base, a slide, a movable cavity, a protective frame, a motor, a screw, a limit rod, a slider and a universal wheel structure. The motor drives the screw to rotate to realize the lifting and movement of the universal wheel, reducing the dependence on lifting equipment.
The mobility of the raise boring rig is improved, the transportation cost is reduced, and stable movement can be achieved without the need for large lifting equipment.
Smart Images
Figure CN223387245U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mining equipment, in particular to a raising borer lifting and lowering device. Background Art
[0002] The raise boring rig uses the drill rig's electric motor to drive a hydraulic motor, which in turn drives a swivel. This hydraulic power transmits torque to the drilling system, driving the drill pipe and drill bit to rotate. Under the weight on bit (WOB), the pilot drill bit or reaming drill bit rolls or slides slightly along the rock face at the bottom of the well. Simultaneously, the main engine's oil cylinder generates axial tension, which acts on the pilot drill bit or reaming drill bit through the power unit and drill pipe. This causes the pilot drill bit's cutter to roll under the WOB, generating impact loads that cause the cutter teeth to press, squeeze, and shear the rock, crushing it.
[0003] In the prior art, when a raise boring machine is used and moved, it is usually carried out by multiple workers. However, since the frame is too high and the volume is too heavy, it is not conducive to transportation. Large lifting equipment is required for transportation and movement, which increases the transportation cost. Utility Model Content
[0004] The utility model aims to solve the problem in the prior art that a raise boring rig is inconvenient to move and requires large lifting equipment for transportation and movement, and proposes a raising boring rig lifting and lowering device.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A raising and lowering device for a raise boring rig comprises a base, on which a raise boring rig is fixedly mounted, a slide groove and a movable cavity respectively provided at the bottom end of the base, a protective frame provided on all four sides of the base, a motor provided inside the protective frame, a screw and a limit rod provided in the slide groove, a first slider and a second slider provided on the screw and the limit rod respectively, a fixed plate provided on the first slider, a rotating bearing provided on the fixed plate, and a universal wheel provided on the rotating bearing.
[0007] Preferably, the chute and the movable cavity are both opened around the base, the movable cavity and the chute are both rectangular, and the width of the movable cavity is greater than the width of the chute.
[0008] Preferably, the protective frame is fixedly connected to the base, the motor is fixedly installed in the protective frame, the motor is fixedly connected to the base, and the output end of the motor is fixedly connected to the screw.
[0009] Preferably, the screw rod and the limiting rod are arranged in bilateral symmetry, the screw rod is rotatably connected to the base, and the limiting rod is fixedly connected to the base.
[0010] Preferably, the first slider and the second slider are both arranged in a rectangular shape, the first slider is threadedly connected to the screw rod, the second slider is slidably connected to the limit rod, and both ends of the fixed plate are fixedly connected to the first slider and the second slider respectively.
[0011] Preferably, the rotating bearing is fixedly connected to the fixed plate, the universal wheel is fixedly connected to the rotating bearing, and a locking structure is provided on the universal wheel.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] 1. In the utility model, a liftable universal wheel structure is provided around the base. The screw is driven to rotate by a motor. The threaded connection between the screw and the first slider and the limiting effect of the limit rod on the movement of the slider are utilized to accurately control the lifting and lowering of the universal wheel. There is no need to use a lifting device to move the device, which greatly improves the convenience of movement and reduces the cost of handling and moving. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a structural diagram of a raising and lowering device for a raise boring machine proposed in the present utility model;
[0015] Figure 2 This is a structural schematic diagram of the base of a raise boring rig landing device proposed in the utility model;
[0016] Figure 3 This is a partial cross-sectional view of the base of a raise boring rig landing device proposed in the utility model;
[0017] Figure 4 This is a partial detail diagram of the raising and lowering device of the raise boring machine proposed in the utility model.
[0018] In the picture:
[0019] 1. Base; 2. Raise boring machine; 3. Slide; 4. Movable cavity; 5. Protective frame; 6. Motor; 7. Screw; 8. Limit rod; 9. First slider; 10. Second slider; 11. Fixed plate; 12. Rotating bearing; 13. Universal wheel. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0021] Reference Figures 1-4A raising and lowering device for a raise boring rig includes a base 1, on which a raise boring rig 2 is fixedly mounted, a chute 3 and a movable cavity 4 are respectively provided at the bottom end of the base 1, a protective frame 5 is provided on all sides of the base 1, a motor 6 is provided inside the protective frame 5, a screw 7 and a limit rod 8 are provided in the chute 3, a first slider 9 and a second slider 10 are respectively provided on the screw 7 and the limit rod 8, a fixing plate 11 is provided on the first slider 9, a rotating bearing 12 is provided on the fixing plate 11, and a universal wheel 13 is provided on the rotating bearing 12.
[0022] Furthermore, the slide groove 3 and the movable cavity 4 are both opened around the base 1, and the movable cavity 4 and the slide groove 3 are both rectangular. The slide groove 3 provides installation space for the screw rod 7 and the limit rod 8, and its rectangular shape limits the movement trajectory of the slider, ensuring that the first slider 9 can make stable axial linear motion along the screw rod 7 during the transmission process, and at the same time the second slider 10 can slide smoothly along the limit rod 8; the width of the movable cavity 4 is larger than the width of the slide groove 3, ensuring that the first slider 9 and the second slider 10 will not fall off the base 1, and the width of the slide groove 3 can allow the universal wheel 13 to be retracted into the movable cavity 4 through the slide groove 3 during the rising process.
[0023] Furthermore, the protective frame 5 is fixedly connected to the base 1, and the motor 6 is fixedly installed in the protective frame 5. The protective frame 5 can effectively block dust and debris from entering the inside of the motor 6, preventing them from interfering with the normal operation of the motor 6, while ensuring that the motor 6 is stably installed and can effectively drive the screw 7 to rotate; the motor 6 is fixedly connected to the base 1, and the output end of the motor 6 is fixedly connected to the screw 7.
[0024] Furthermore, the screw rod 7 and the limit rod 8 are arranged symmetrically on the left and right. The symmetrical arrangement enables the fixed plate 11 to move smoothly in a straight line under the drive of the screw rod 7 and the limiting cooperation of the limit rod 8; the screw rod 7 is rotatably connected to the base 1, and the limit rod 8 is fixedly connected to the base 1.
[0025] Furthermore, the first slider 9 and the second slider 10 are both arranged in a rectangular shape, the first slider 9 is threadedly connected to the screw 7, the second slider 10 is slidably connected to the limit rod 8, and the two ends of the fixed plate 11 are fixedly connected to the first slider 9 and the second slider 10 respectively. The rectangular slider shape can better fit the rectangular slide groove 3, ensuring the stability of sliding and connection, and through the cooperation of the first slider 9, the second slider 10 and the screw 7 and the limit rod 8, the fixed plate 11 and the universal wheel 13 thereon are driven to perform accurate lifting and lowering actions.
[0026] Furthermore, the rotating bearing 12 is fixedly connected to the fixed plate 11, and the universal wheel 13 is fixedly connected to the rotating bearing 12, which allows the universal wheel 13 to rotate freely and flexibly in all directions, so that the device can easily change its direction of travel during movement; a locking structure is provided on the universal wheel 13, and the locking structure is a prior art. When the universal wheel 13 needs to be locked, the threaded sleeve is rotated to insert the rod into the slot on the wheel body, thereby fixing the wheel body; when the lock needs to be released, the threaded sleeve is reversed to move the rod out of the slot; the universal wheel 13 can withstand large external forces without sliding in the locked state, ensuring that the device is in a stable static state during operation, providing a solid foundation for the high-precision operation of the raise drilling rig.
[0027] The functional principle of this utility model can be explained through the following operation modes:
[0028] In actual use, when the entire raise boring rig landing device needs to be moved, the motor 6 is controlled to rotate forward, and the motor 6 drives the screw 7 to rotate, causing the first slide 9 to move downward along the screw 7, and the second slide 10 to slide downward along the limit rod 8 at the same time, thereby driving the fixed plate 11 to move downward. As the fixed plate 11 moves downward, it drives the rotating bearing 12 and the universal wheel 13 to move downward until the universal wheel 13 passes through the movable cavity 4 and extends below the base 1 to contact the ground. The base 1 is lifted upward by the reverse force, and then the device can be pushed to move flexibly to the designated location by relying on the universal wheel 13. The universal wheel 13 is then locked by the locking structure to ensure the device is placed stably. The motor 6 is then controlled to rotate in the reverse direction, causing the first slide 9 and the second slide 10 to move upward, driving the universal wheel 13 on the fixed plate 11 to move upward, causing the universal wheel to be retracted into the movable cavity 4, and the base 1 to be stably placed on the ground, facilitating subsequent raise boring rig operations. If the device needs to be moved again at a different location, the universal wheel 13 can be unlocked and the above movement operation can be repeated.
[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A raising and lowering device for a raise boring machine, comprising a base (1), characterized in that: A raise boring machine (2) is fixedly mounted on the base (1), a chute (3) and a movable cavity (4) are respectively provided at the bottom end of the base (1), a protective frame (5) is provided on all four sides of the base (1), a motor (6) is provided inside the protective frame (5), a screw (7) and a limit rod (8) are provided inside the chute (3), a first slider (9) and a second slider (10) are respectively provided on the screw (7) and the limit rod (8), a fixed plate (11) is provided on the fixed plate (11), a rotating bearing (12) is provided on the rotating bearing (12), and a universal wheel (13) is provided on the rotating bearing (12).
2. The raise boring machine landing device according to claim 1, characterized in that: The chute (3) and the movable cavity (4) are both arranged around the base (1); the movable cavity (4) and the chute (3) are both rectangular; the width of the movable cavity (4) is greater than the width of the chute (3).
3. The raising and lowering device of the raise boring machine according to claim 1, characterized in that: The protective frame (5) is fixedly connected to the base (1), the motor (6) is fixedly installed in the protective frame (5), the motor (6) is fixedly connected to the base (1), and the output end of the motor (6) is fixedly connected to the screw (7).
4. The raising and lowering device of the raise boring machine according to claim 1, characterized in that: The screw rod (7) and the limiting rod (8) are arranged in a bilaterally symmetrical manner. The screw rod (7) is rotatably connected to the base (1), and the limiting rod (8) is fixedly connected to the base (1).
5. The raising and lowering device of the raise boring machine according to claim 1, characterized in that: The first slider (9) and the second slider (10) are both arranged in a rectangular shape. The first slider (9) is threadedly connected to the screw rod (7), the second slider (10) is slidably connected to the limit rod (8), and the two ends of the fixed plate (11) are fixedly connected to the first slider (9) and the second slider (10) respectively.
6. The raising and lowering device of the raise boring machine according to claim 1, characterized in that: The rotating bearing (12) is fixedly connected to the fixed plate (11), the universal wheel (13) is fixedly connected to the rotating bearing (12), and a locking structure is provided on the universal wheel (13).