A portal jib carrier

Abstract

The application relates to the technical field of carrier vehicles, in particular to a portal frame carrier, which comprises a tracked vehicle body, a support lifting platform, a heavy oil cylinder, an alloy baffle, a lateral moving platform, a top beam limiting assembly and a double-side stabilizing assembly, the heavy oil cylinder is installed in the inside of the tracked vehicle body, the output end of the heavy oil cylinder is fixedly connected with the bottom surface of the support lifting platform, the support lifting platform is slidingly connected to the inside of the tracked vehicle body, the alloy baffle is fixedly connected to the bottom of the support lifting platform, and the lateral moving platform is movably connected to the two sides of the bottom of the support lifting platform. The portal frame carrier of the application realizes six-degree-of-freedom omnibearing constraint on the portal frame, effectively limits the movement and rotation of the portal frame in each direction during transportation, and under the joint action of linear constraints in three directions, the pitching, yawing and rolling of the portal frame are naturally limited, so that the damage risk of the portal frame itself is reduced, and the equipment versatility is improved.

Description

Technical Field

[0001] This application relates to the field of transport vehicle technology, and in particular to a gantry-type transport vehicle. Background Technology

[0002] The longwall mining face is the core area for raw coal production. To achieve efficient and continuous mining, hydraulic supports are commonly used to support and manage the roadway roof, creating a safe working space. To address these issues, advanced hydraulic supports have emerged. These are self-moving mechanized support devices that can provide strong and uniform support to the roadway roof in rows.

[0003] A search revealed that CN208650905U discloses a tracked support transport vehicle. The vehicle is moved to the front of the support to be transported, the Π-shaped structure at the rear of the frame is aligned with the support, and the lifting mechanism lowers the shovel plate. The vehicle then moves backward, shoveling a portion of the support onto the shovel plate. A support pulling mechanism then extends most of the support onto the shovel plate, while the lifting mechanism moves upward to lift the support. A rear limiting device extends to fix the support and prevent lateral swaying. The tracked walking mechanism moves smoothly to transport the support to the correct position. During unloading, the limiting device retracts, the lifting mechanism lowers the rear of the shovel plate, and the support pulling mechanism extends, changing from pulling to pushing, to push the support out, while simultaneously automatically disengaging.

[0004] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist that need improvement: the hoisting of the above-mentioned device is a semi-rigid connection. When the vehicle is moving, the vibration of the engine, the impact generated by the contact between the track and the ground, and the inertial force of the starting and stopping of the traveling mechanism will be directly transmitted to the support. The support is a huge mass body with great inertia. The vibration frequency of the vehicle and the natural frequency of the support may couple, causing resonance and exacerbating the shaking. These shaking and displacements not only reduce transportation efficiency and safety, but may also damage the precision hydraulic components, valve blocks and pipelines of the support. Utility Model Content

[0005] This application provides a gantry support transport vehicle to improve the following technical problem: the vibration frequency of the vehicle may couple with the natural frequency of the support, causing resonance and resulting in increased shaking. These shaking and displacements not only reduce transportation efficiency and safety, but may also damage the precision hydraulic components, valve blocks and pipelines of the support.

[0006] This application provides a gantry-type support transport vehicle, which adopts the following technical solution: A gantry crane transporter includes a tracked vehicle body, a crane lifting platform, a heavy-duty hydraulic cylinder, an alloy baffle, a lateral moving platform, a top beam limiting assembly, and a double-sided stabilizing assembly. The heavy-duty hydraulic cylinder is installed inside the tracked vehicle body, and its output end is fixedly connected to the bottom surface of the crane lifting platform. The crane lifting platform is slidably connected to the inner side of the tracked vehicle body. The alloy baffle is fixedly connected to the bottom of the crane lifting platform. The lateral moving platform is movably connected to both sides of the bottom of the crane lifting platform. The top beam limiting assembly is installed on both sides of the top of the crane lifting platform. The double-sided stabilizing assembly is installed on the inner side of the lateral moving platform.

[0007] In one feasible technical solution of this application, the middle part of the support platform is provided with a placement groove for placing the gantry support.

[0008] In one feasible technical solution of this application, the top beam limiting assembly includes a snap-fit ​​plate, a horizontal plate, a sliding block, a hydraulic cylinder, and a linear shaft. The horizontal plate is fixedly connected to the outside of the support platform, the snap-fit ​​plate is slidably connected to the inside of the support platform, the hydraulic cylinder is installed on the outside of the horizontal plate, and the output end of the hydraulic cylinder is fixedly connected to the surface of the sliding block. The sliding block is slidably connected to the outside of the linear shaft and fixedly connected to one side of the snap-fit ​​plate. Both sides of the linear shaft are fixedly connected to the outer surface of the horizontal plate.

[0009] In one feasible technical solution of this application, the dual-sided stabilizing assembly includes a wedge-shaped clamp, a blind hole, and a compression spring. The wedge-shaped clamp is slidably connected inside the lateral moving platform and is used to clamp the two side pillars of the gantry bracket. The blind hole is located on one side of the lateral moving platform located on the wedge-shaped clamp. The two sides of the compression spring are fixedly connected to the opposite side surfaces of the wedge-shaped clamp and the lateral moving platform, respectively.

[0010] In one feasible technical solution of this application, the top of the lateral moving platform is further provided with a DC motor, a bidirectional screw and a limiting post. The DC motor is installed on the outside of the alloy baffle. The bidirectional screw is fixedly connected to the outside of the output end of the DC motor, and the external thread surface of the bidirectional screw is screwed to the top of the lateral moving platform. The limiting post penetrates the interior of the lateral moving platform and is fixedly connected to the surface of the alloy baffle.

[0011] In one feasible technical solution of this application, the interior of the lateral moving platform is provided with threaded grooves and through holes that are adapted to the dimensions of the bidirectional screw and the limiting post.

[0012] In one feasible technical solution of this application, the support platform is provided with anti-slip texture on one side surface of the placement groove to prevent slippage.

[0013] In summary, this application includes at least one of the following beneficial technical effects: This device effectively restricts the movement and rotation of the portal frame in all six degrees of freedom during transportation by constraining it in all directions, thus completely solving the displacement problem. During operation, the sliding block and clamping plate are driven by a hydraulic cylinder to actively and rigidly clamp the top beam of the portal frame, eliminating gaps in this direction. Under the action of the compression spring, the wedge-shaped clamps continuously and adaptively clamp the two side supports of the frame, achieving a bidirectional constraint effect and ensuring that no lateral displacement occurs under any inertial force. Under the combined action of linear constraints in three directions, the pitch, yaw, and roll of the frame are naturally restricted, thereby reducing the risk of damage to the frame itself and enhancing the versatility of the equipment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of the gantry support transport vehicle according to an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the inner side of the connection between the tracked vehicle body and the support platform in an embodiment of this application.

[0017] Figure 3 This is a diagram showing the extended effect of the snap-fit ​​plate in an embodiment of this application.

[0018] Figure 4 This is a schematic diagram of the structure of the double-sided stabilizing component in the embodiments of this application.

[0019] Figure 5 This is a cross-sectional view of the lateral moving platform in an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures: 1. Tracked chassis; 2. Support platform; 3. Heavy-duty hydraulic cylinder; 4. Alloy baffle; 5. Lateral movement platform; 6. Top beam restraint assembly; 61. Clip-on plate; 62. Horizontal plate; 63. Sliding block; 64. Hydraulic cylinder; 65. Linear shaft; 7. Double-sided stabilizing assembly; 71. Wedge-shaped clamp; 72. Blind hole; 73. Compression spring; 8. Mounting slot; 9. DC motor; 10. Bidirectional screw; 11. Limiting post; 12. Threaded groove; 13. Through hole; 14. Anti-slip texture. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a gantry-type support transport vehicle. (Refer to...) Figures 1 to 5 The gantry crane transporter includes a tracked vehicle body 1, a crane lifting platform 2, a heavy-duty hydraulic cylinder 3, an alloy baffle 4, a lateral moving platform 5, a top beam limiting assembly 6, and a double-sided stabilizing assembly 7. The heavy-duty hydraulic cylinder 3 is installed inside the tracked vehicle body 1, and the output end of the heavy-duty hydraulic cylinder 3 is fixedly connected to the bottom surface of the crane lifting platform 2. The crane lifting platform 2 is slidably connected to the inner side of the tracked vehicle body 1. The alloy baffle 4 is fixedly connected to the bottom of the crane lifting platform 2. The lateral moving platform 5 is movably connected to the bottom two sides of the crane lifting platform 2. The top beam limiting assembly 6 is installed on the top two sides of the crane lifting platform 2. The double-sided stabilizing assembly 7 is installed on the inner side of the lateral moving platform 5.

[0025] The heavy-duty hydraulic cylinder 3 itself acts as a flexible buffer element, which can absorb and attenuate most of the high-frequency vibrations and instantaneous impacts from the tracked walking system and the engine, avoiding the hard impacts caused by rigid connections.

[0026] The support platform 2 has a mounting slot 8 in the middle for placing the gantry frame.

[0027] The top beam limiting assembly 6 includes a snap-fit ​​plate 61, a horizontal plate 62, a sliding block 63, a hydraulic cylinder 64, and a linear shaft 65. The horizontal plate 62 is fixedly connected to the outside of the support platform 2. The snap-fit ​​plate 61 is slidably connected to the inside of the support platform 2. The hydraulic cylinder 64 is installed on the outside of the horizontal plate 62, and the output end of the hydraulic cylinder 64 is fixedly connected to the surface of the sliding block 63. The sliding block 63 is slidably connected to the outside of the linear shaft 65 and fixedly connected to one side of the snap-fit ​​plate 61. Both sides of the linear shaft 65 are fixedly connected to the outer surface of the horizontal plate 62.

[0028] The dual-sided stabilizing assembly 7 includes a wedge-shaped clamp 71, a blind hole 72, and a compression spring 73. The wedge-shaped clamp 71 is slidably connected inside the lateral moving platform 5 and is used to clamp the two side pillars of the gantry bracket. The blind hole 72 is located on one side of the lateral moving platform 5 located on the wedge-shaped clamp 71. The two sides of the compression spring 73 are fixedly connected to the opposite side surfaces of the wedge-shaped clamp 71 and the lateral moving platform 5, respectively.

[0029] Compression spring 73 provides a pre-tensioned, retractable clamping force. When encountering slight vibrations or minor changes in bracket dimensions, wedge-shaped clamps 71 can move slightly to cushion the impact. This flexible contact significantly reduces the risk of damage to the bracket surface and internal precision components.

[0030] The top of the lateral moving platform 5 is also equipped with a DC motor 9, a bidirectional screw 10 and a limiting post 11. The DC motor 9 is installed on the outside of the alloy baffle 4. The bidirectional screw 10 is fixedly connected to the outside of the output end of the DC motor 9, and the outer thread surface of the bidirectional screw 10 is screwed to the top of the lateral moving platform 5. The limiting post 11 penetrates the interior of the lateral moving platform 5 and is fixedly connected to the surface of the alloy baffle 4.

[0031] The interior of the lateral moving platform 5 is provided with threaded grooves 12 and through holes 13 that are adapted to the dimensions of the bidirectional screw 10 and the limiting post 11.

[0032] The support platform 2 is located on one side of the placement groove 8 and has anti-slip texture 14 to prevent slipping.

[0033] Upon arrival at the destination, the reverse operation is performed: hydraulic cylinder 64 retracts and releases the top beam, heavy-duty cylinder 3 slowly descends to place the support in place, and finally DC motor 9 reverses to retract the lateral moving platform 5, allowing the vehicle to drive away.

[0034] The general process of using the gantry crane transporter according to this embodiment is as follows: The operator drives the tracked vehicle 1, positioning it over the gantry frame to be transported, ensuring the frame is approximately within the placement slot 8 area in the middle of the frame lifting platform 2. The DC motor 9 is started, driving the bidirectional screw 10 to rotate. Since the bidirectional screw 10 engages with the threaded groove 12 on the top of the lateral moving platform 5, and the lateral moving platform 5 is restricted to horizontal movement by the limiting post 11 through the through hole 13, the two lateral moving platforms 5 move towards or away from each other, adjusting their spacing so that the inner double-sided stabilizing components 7 can be aligned with the expected clamping positions of the two side supports of the gantry frame. The heavy-duty hydraulic cylinder 3 is extended, pushing the frame lifting platform 2 upwards along the inner side of the tracked vehicle 1, thereby smoothly lifting the gantry frame placed in the placement slot 8 off the ground. The alloy baffle 4 reinforces the structure during lifting. After lifting is complete, the hydraulic cylinder 64 of the top beam limiting component 6 is activated. Hydraulic cylinder 64 pushes sliding block 63 to slide along linear axis 65, thereby driving clamping plate 61 to move inward, ultimately firmly clamping the top beam of the portal frame from both sides, effectively preventing forward and backward movement during transportation. When the frame is stable on both sides, wedge-shaped clamping blocks 71, under the preload of compression spring 73, press tightly against the two side supports of the portal frame. The flexible nature of the spring ensures a constant clamping force and adapts to minor shape deviations, absorbing vibration. Blind hole 72 provides travel space and guidance for the movement of wedge-shaped clamping blocks 71. At this time, the portal frame is completely fixed by the anti-slip texture 14 of the mounting groove 8, the rigid clamping of the top beam limiting component 6, and the flexible clamping of the double-sided stabilizing component 7. The equipment can then be transported, and the heavy-duty hydraulic cylinder 3 itself also plays a role in buffering vibration.

[0035] The beneficial technical effects of the gantry-type transport vehicle according to the embodiments of this application are roughly as follows: This device effectively restricts the movement and rotation of the portal frame in all six degrees of freedom during transportation, completely solving the displacement problem. During operation, the hydraulic cylinder 64 drives the sliding block 63 and the clamping plate 61 to actively and rigidly clamp the top beam of the portal frame, eliminating gaps in this direction. The wedge-shaped clamp 71, under the action of the compression spring 73, continuously and adaptively clamps the two side supports of the frame, achieving a bidirectional constraint effect and ensuring that no lateral displacement occurs under any inertial force. The combined linear constraints in three directions naturally limit the pitch, yaw, and roll of the frame, thereby reducing the risk of damage to the frame itself and enhancing the equipment's versatility.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A gantry-type support transport vehicle, characterized in that, The system includes a tracked vehicle body (1), a support lifting platform (2), a heavy-duty hydraulic cylinder (3), an alloy baffle (4), a lateral moving platform (5), a top beam limiting assembly (6), and a double-sided stabilizing assembly (7). The heavy-duty hydraulic cylinder (3) is installed inside the tracked vehicle body (1), and the output end of the heavy-duty hydraulic cylinder (3) is fixedly connected to the bottom surface of the support lifting platform (2). The support lifting platform (2) is slidably connected to the inner side of the tracked vehicle body (1). The alloy baffle (4) is fixedly connected to the bottom of the support lifting platform (2). The lateral moving platform (5) is movably connected to the bottom two sides of the support lifting platform (2). The top beam limiting assembly (6) is installed on the top two sides of the support lifting platform (2). The double-sided stabilizing assembly (7) is installed on the inner side of the lateral moving platform (5).

2. The gantry crane transport vehicle according to claim 1, characterized in that, The support platform (2) is provided with a mounting slot (8) for placing the gantry frame in the middle.

3. The gantry crane transport vehicle according to claim 1, characterized in that, The top beam limiting assembly (6) includes a snap-fit ​​plate (61), a horizontal plate (62), a sliding block (63), a hydraulic cylinder (64), and a linear shaft (65). The horizontal plate (62) is fixedly connected to the outside of the support platform (2). The snap-fit ​​plate (61) is slidably connected to the inside of the support platform (2). The hydraulic cylinder (64) is installed on the outside of the horizontal plate (62), and the output end of the hydraulic cylinder (64) is fixedly connected to the surface of the sliding block (63). The sliding block (63) is slidably connected to the outside of the linear shaft (65) and fixedly connected to one side of the snap-fit ​​plate (61). The two sides of the linear shaft (65) are fixedly connected to the outer surface of the horizontal plate (62).

4. The gantry crane transport vehicle according to claim 1, characterized in that, The dual-sided stabilizing assembly (7) includes a wedge-shaped clamp (71), a blind hole (72), and a compression spring (73). The wedge-shaped clamp (71) is slidably connected inside the lateral moving platform (5) and is used to clamp the two side pillars of the gantry bracket. The blind hole (72) is located on one side of the lateral moving platform (5) located on the wedge-shaped clamp (71). The two sides of the compression spring (73) are fixedly connected to the opposite side surfaces of the wedge-shaped clamp (71) and the lateral moving platform (5), respectively.

5. The gantry crane transport vehicle according to claim 4, characterized in that, The top of the lateral moving platform (5) is also provided with a DC motor (9), a bidirectional screw (10) and a limiting post (11). The DC motor (9) is installed on the outside of the alloy baffle (4). The bidirectional screw (10) is fixedly connected to the outside of the output end of the DC motor (9), and the external thread surface of the bidirectional screw (10) is screwed to the top of the lateral moving platform (5). The limiting post (11) penetrates the interior of the lateral moving platform (5) and is fixedly connected to the surface of the alloy baffle (4).

6. The gantry crane transport vehicle according to claim 5, characterized in that, The interior of the lateral moving platform (5) is provided with threaded grooves (12) and through holes (13) that are adapted to the size of the bidirectional screw (10) and the limiting post (11).

7. The gantry crane transport vehicle according to claim 2, characterized in that, The support platform (2) located on one side of the placement groove (8) has anti-slip texture (14) to prevent slipping.

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