A self-propelled lifting device
The design of the self-propelled lifting equipment enables the automatic lifting and fixing of the U-shaped steel canopy, solving the problems of high strength and safety risks associated with manual installation during underground construction, and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG TANGKOU COAL
- Filing Date
- 2025-10-17
- Publication Date
- 2026-08-04
AI Technical Summary
The installation of U-shaped steel canopy support in underground mines relies on manual labor, resulting in high labor intensity, low efficiency, and safety risks, which affect production efficiency and threaten life and health.
Design a self-propelled lifting device that integrates a lifting mechanism and is driven by a power unit. Combined with a lifting arm and a support arm mechanism, it can automatically lift and fix a U-shaped steel canopy, reducing manual intervention.
It improves the construction safety and efficiency of underground U-shaped steel canopy support, reduces manpower consumption, and enhances the accuracy and safety of construction.
Smart Images

Figure CN224592153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of general-purpose underground machinery, and in particular to a self-propelled lifting device. Background Technology
[0002] U-shaped steel canopies, a type of canopy support, are widely used in the support of medium-deep roadways in coal mines. However, currently, most of the installation work on these canopies relies on manual labor. Specifically, underground workers must first lift the U-shaped steel canopy to the installation position and then secure it with clamps. Due to the high height and heavy weight of the U-shaped steel canopy's top beam, the labor intensity for workers during construction is extremely high, the construction safety risks are significant, and the construction efficiency is low. These issues result in lengthy implementation times and high risks, not only affecting normal underground production and reducing production efficiency but also threatening the lives and health of underground workers.
[0003] There is currently no corresponding solution to the above problems. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a self-propelled lifting device that can be self-propelled and integrated underground to replace manual operation in lifting steel sheds and improve operational safety.
[0005] The equipment includes a frame, which is the assembly base of the equipment. A walking unit is installed under the frame, and the walking unit is powered by a power unit. That is, the equipment can be driven to move by outputting power through the power unit; A parking mechanism is also installed under the frame; That is, the auxiliary control of the parking mechanism can keep the equipment stable, thus providing a stable support foundation for the lifting operation; The frame is equipped with an electrical control unit and a power unit, and the electrical control unit and the power unit are connected by signals. A lifting arm mechanism and a support arm mechanism are provided at the front of the frame; The lifting arm mechanism and the support arm mechanism are rotatably mounted on the frame via a horizontal slewing mechanism, which is powered by the power unit. That is, the lifting arm mechanism and the support arm mechanism can rotate horizontally on the frame; The lifting arm mechanism includes a lifting arm body hinged to a slewing mechanism, and a lifting cylinder is also hinged between the lifting arm body and the slewing mechanism. That is, the lifting arm body can be lifted by the action of the lifting cylinder; The lifting arm body is provided with a vertical rotation mechanism at the front; a mechanical gripper is hinged to the rotor of the vertical rotation mechanism; and an angle adjustment cylinder is provided between the mechanical gripper and the rotor of the vertical rotation mechanism. That is, the mechanical gripper can be rotated by the vertical rotation mechanism to change its orientation angle, that is, the orientation angle of the mechanical gripper in the left and right direction; the angle adjustment cylinder can control the orientation angle of the mechanical gripper in the front and back direction. In other words, the rotation of the horizontal slewing mechanism, in conjunction with the lifting cylinder, lifts the lifting arm body, thereby controlling the basic position of the mechanical gripper within the tunnel. After the basic position of the mechanical gripper is determined, its vertical rotation mechanism can control the orientation angle of the mechanical gripper in the left and right directions, and the angle adjustment cylinder can control the orientation angle of the mechanical gripper in the front and back directions. This enables the mechanical gripper to achieve a wide range of multi-angle displacement control within the tunnel, meeting the lifting and assembly requirements and precision of the U-shaped steel shed.
[0006] The support arm mechanism includes a support arm body hinged to a rotary mechanism, and a lifting cylinder is also hinged between the support arm body and the rotary mechanism. That is, the lifting of the support arm body can be controlled by the action of the lifting cylinder; The lifting arm body is provided with a vertical rotation mechanism at the front; an assembly base is fixedly provided on the rotor of the vertical rotation mechanism, and a planar rotation mechanism is also provided on the assembly base. The planar rotary mechanism is equipped with a support unit, and the support unit is powered by a locking cylinder.
[0007] In other words, based on the lifting arm mechanism, i.e. the mechanical gripper, one side of the shed is fixed and lifted, while the other side of the shed can be supported and positioned by the support arm mechanism, thereby achieving stable lifting of the equipment and limiting the equipment during lifting to prevent the equipment from rotating and injuring people.
[0008] The beneficial effects of this utility model are: it solves the problem of relying on manual labor in underground U-shaped steel canopy support engineering in the prior art, and realizes highly integrated underground steel canopy lifting construction. It can reduce manpower consumption, improve construction efficiency, and especially improve construction safety. Attached Figure Description
[0009] Figure 1 This is a structural schematic diagram of a self-propelled lifting device according to the present invention, and also a structural schematic diagram of Embodiment 8; Figure 2 This is a schematic diagram of the structure of Embodiment 9 of the self-propelled lifting device described in this utility model; Figure 3This is an enlarged view of the lifting arm mechanism; Figure 4 Based on Figure 3 A schematic diagram of the lifting arm's operation; Figure label: 1-Walking Unit 2-Parking Mechanism 3-Electrical Control Unit 4-Power Unit 5-Horizontal Rotation Mechanism 6-Lifting Cylinder 7-Lifting Arm Body 71-Secondary Telescopic Arm 8-Support Arm Body 81-Constraint Frame 82-Constraint Wheel 9-Adjusting Cylinder 10-Vertical Rotation Mechanism 11-Plane Rotation Mechanism 12-Mechanical Grip The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0010] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The self-propelled lifting device of this utility model includes a frame, which is the assembly base of the device. A walking unit 1 is provided under the frame, and the walking unit 1 is powered by a power unit 4. That is, the equipment can be driven to move by outputting power through power unit 4; A parking mechanism 2 is also provided under the frame; That is, the auxiliary control of the parking mechanism 2 can keep the equipment stable, thus providing a stable support foundation for the lifting operation; The frame is equipped with an electrical control unit 3 and a power unit 4, and the electrical control unit 3 and the power unit 4 are connected by signals. A lifting arm mechanism and a support arm mechanism are provided at the front of the frame; The lifting arm mechanism and the support arm mechanism are rotatably mounted on the frame via a horizontal slewing mechanism 5, which is powered by the power unit 4. That is, the lifting arm mechanism and the support arm mechanism can rotate horizontally on the frame; The lifting arm mechanism includes a lifting arm body 7 hinged to a rotary mechanism, and a lifting cylinder 6 is also hinged between the lifting arm body 7 and the rotary mechanism. That is, by the action of the lifting cylinder 6, the lifting arm body 7 can be lifted; The lifting arm body 7 is provided with a vertical rotation mechanism 10 at the front; a mechanical gripper 12 is hinged on the rotor of the vertical rotation mechanism 10; and an angle adjustment cylinder 9 is provided between the mechanical gripper 12 and the rotor of the vertical rotation mechanism 10. That is, the mechanical gripper 12 can be rotated by the vertical rotation mechanism 10 to change its orientation angle, that is, the orientation angle of the mechanical gripper 12 in the left and right directions; the angle adjustment cylinder 9 can control the orientation angle of the mechanical gripper 12 in the front and back directions. In other words, the rotation of the horizontal slewing mechanism 5, in conjunction with the lifting cylinder 6, lifts the lifting arm body 7, thereby controlling the basic position of the mechanical gripper 12 within the tunnel. After the basic position of the mechanical gripper 12 is positioned, its vertical rotation mechanism 10 can control the orientation angle of the mechanical gripper 12 in the left and right directions, and the angle adjustment cylinder 9 can control the orientation angle of the mechanical gripper 12 in the front and back directions. This enables the mechanical gripper 12 to achieve a wide range of multi-angle displacement control within the roadway, meeting the lifting and assembly requirements and precision of the U-shaped steel shed.
[0011] The support arm mechanism includes a support arm body 8 hinged to a rotary mechanism, and a lifting cylinder 6 is also hinged between the support arm body 8 and the rotary mechanism. That is, by the action of the lifting cylinder 6, the lifting of the support arm body 8 can be controlled; The lifting arm body 7 is provided with a vertical rotation mechanism 10 at the front; an assembly base is fixedly provided on the rotor of the vertical rotation mechanism 10, and a planar rotation mechanism 11 is also provided on the assembly base. The planar rotary mechanism 11 is equipped with a support unit, and the support unit is powered by a locking cylinder.
[0012] In other words, based on the lifting arm mechanism, namely the mechanical gripper 12, one side of the canopy is fixed and lifted, while the other side of the canopy can be supported and positioned by the support arm mechanism, thereby achieving stable lifting of the equipment and limiting the equipment during lifting to prevent the equipment from rotating and injuring people.
[0013] In Example 1, the walking unit 1 is a walking track.
[0014] The effect achieved is to adapt to the underground roadway surface, making the equipment move stably, especially facilitating slope travel.
[0015] In Example 2, the parking mechanism 2 is located at the front and rear of the vehicle frame, including a parking hydraulic cylinder fixedly installed at the corner of the bottom surface of the frame, and the piston end of the parking hydraulic cylinder is provided with a parking column foot.
[0016] Furthermore, the parking hydraulic cylinders are arranged in pairs, and the parking support is a parking plate or a wooden block, which is fixedly installed between the two parking hydraulic cylinders. Alternatively, each hydraulic cylinder may be equipped with a separate parking support.
[0017] The effect achieved is to support the stable operation of the equipment, improve the accuracy and safety of operations, and prevent vibration and displacement of the equipment during operation.
[0018] In Example 3, the power unit 4 is a downhole hydraulic power unit or a mechanical pump station is configured on the frame.
[0019] This achieves the effect of facilitating power connection for equipment and better meeting fire and explosion prevention requirements.
[0020] Example 4: The rotary mechanism includes a rotary support fixedly mounted on the frame, a rotating sleeve rotatably mounted on the rotary support, the rotating sleeve being powered by a power unit 4, and an assembly panel being mounted on the rotating sleeve.
[0021] Preferably, the lifting arm body 7, the support arm body 8, and the lifting cylinder 6 are respectively hinged on their respective mounting panels.
[0022] Preferably, the power unit 4 is powered by a rotating disk or a worm gear mechanism, thereby driving the rotating sleeve to rotate.
[0023] The result is that the equipment rotates smoothly and seamlessly.
[0024] In Example 5, a secondary telescopic arm 71 is sleeved inside the lifting arm body 7; the secondary telescopic arm 71 is driven and controlled to extend and retract by a secondary telescopic hydraulic cylinder fixedly installed at its tail end inside the lifting arm.
[0025] This results in a longer lifting stroke for the lifting arm.
[0026] In Example 6, the mechanical gripper 12 includes a gripper base, on which multiple grippers are movably arranged, and the multiple grippers are divided into at least two groups facing each other; each group of grippers is powered and connected to a clamping hydraulic cylinder; that is, driving the gripper base can drive the grippers to move in opposite directions to lock. The gripper base is also provided with a clamping hydraulic cylinder, and the piston of the clamping hydraulic cylinder is positioned between the opposing grippers.
[0027] That is, after the gripper locks, the hydraulic cylinder pushes forward to further secure the object being locked.
[0028] In Example 7, the facade rotation mechanism 10 is hinged to the front end face of the support arm body 8, and an adjusting cylinder 9 is also provided between the facade rotation mechanism 10 and the support arm body 8.
[0029] This achieves the effect of fine-tuning the pitch angle of the support unit at the front.
[0030] Example 8, refer to the accompanying drawings in the specification. Figure 1 The support unit is a constraint frame 81 with hinges on both sides, and the locking cylinder is located between the two constraint frames 81.
[0031] This achieves the effect of fully locking the steel shed.
[0032] Example 9, refer to the accompanying drawings in the specification. Figure 2 The support unit is a set of constraint wheels 82 arranged opposite to each other, that is, the gap between the two constraint wheels 82 is used for the nesting and limiting of the steel shed side frame; The locking cylinder is mounted on the wheel frame of the two constraint wheels 82, and the wheel frame is movably mounted on the outer shell of the support unit.
[0033] That is, by pushing the locking cylinder, the wheel frame, i.e. the constraint wheel 82, moves towards the mechanical gripper 12, so as to achieve a more convenient locking of the steel shed.
[0034] Preferably, the electrical control unit 3 integrates a control unit, which connects to each action unit via solenoid valve signals to achieve semi-automatic operation; the control unit is also connected to a remote controller to achieve remote control.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A self-propelled lifting device, comprising a frame, with a traveling unit disposed beneath the frame, the traveling unit being powered by a power unit, characterized in that: A parking mechanism is also installed under the frame; The frame is equipped with an electrical control unit and a power unit, and the electrical control unit and the power unit are connected by signals. A lifting arm mechanism and a support arm mechanism are provided at the front of the frame; The lifting arm mechanism and the support arm mechanism are rotatably mounted on the frame via a horizontal slewing mechanism, which is powered by the power unit. The lifting arm mechanism includes a lifting arm body hinged to a slewing mechanism, and a lifting cylinder is also hinged between the lifting arm body and the slewing mechanism. The lifting arm body is provided with a vertical rotation mechanism at the front; a mechanical gripper is hinged to the rotor of the vertical rotation mechanism; and an angle adjustment cylinder is provided between the mechanical gripper and the rotor of the vertical rotation mechanism. The support arm mechanism includes a support arm body hinged to a rotary mechanism, and a lifting cylinder is also hinged between the support arm body and the rotary mechanism. The lifting arm body is provided with a vertical rotation mechanism at the front; an assembly base is fixedly provided on the rotor of the vertical rotation mechanism, and a planar rotation mechanism is also provided on the assembly base. The planar rotary mechanism is equipped with a support unit, and the support unit is powered by a locking cylinder.
2. A self-propelled lifting device according to claim 1, characterised in that The walking unit is a walking track.
3. A self-propelled lifting device according to claim 1, characterized in that The parking mechanism is located at the front and rear of the vehicle frame, and includes a parking hydraulic cylinder fixedly installed at the corner of the bottom surface of the frame, and the piston end of the parking hydraulic cylinder is provided with a parking column foot.
4. A self-propelled lifting device according to claim 1, characterized in that The power unit is either a downhole hydraulic power source or a mechanical pump station mounted on the frame.
5. A self-propelled lifting device according to claim 1, characterized in that The rotary mechanism includes a rotary support fixedly mounted on the frame, a rotating sleeve rotatably mounted on the rotary support, the rotating sleeve being powered by a power unit, and an assembly panel being mounted on the rotating sleeve.
6. A self-propelled lifting device according to claim 1, characterized in that The lifting arm body is fitted with a secondary telescopic arm; the extension and retraction of the secondary telescopic arm is driven and controlled by a secondary telescopic cylinder fixedly installed at its tail end inside the lifting arm.
7. A self-propelled lifting device according to claim 1, characterized in that The mechanical gripper includes a gripper base, on which multiple grippers are movably mounted, and the multiple grippers are arranged in at least two groups facing each other; each group of grippers is powered and connected to a clamping hydraulic cylinder. The gripper base is also provided with a clamping hydraulic cylinder, and the piston of the clamping hydraulic cylinder is positioned between the opposing grippers.
8. A self-propelled lifting device according to claim 1, characterized in that The facade rotation mechanism is hinged to the front end face of the support arm body, and an adjusting cylinder is also provided between the facade rotation mechanism and the support arm body.
9. A self-propelled lifting device according to claim 1, characterized in that The support unit is a constraint frame with hinges on both sides, and the locking cylinder is located between the two constraint frames.
10. A self-propelled lifting device according to claim 1, characterized in that The support unit is a set of constraint wheels arranged opposite each other, that is, the gap between the two constraint wheels is used for the nesting and limiting of the steel shed side frame; The locking cylinder is mounted on the wheel frame of the two constraint wheels, and the wheel frame is movably mounted on the outer shell of the support unit.