Vehicle-mounted limiting structure based on large-size transportation

Abstract

The utility model relates to big piece goods transportation technical field especially relates to a vehicle -mounted limiting structure based on big piece transportation, including the base frame that bears on the transport flat -car, at least two groups set up the lateral limiting component of two sides of base frame, at least two groups set up the longitudinal limiting component of two ends of base frame before and after, and a plurality of distribution is on the bottom support and lateral clamping component of base frame, the utility model discloses through the combination of horizontal, longitudinal and bottom support etc. multiple components, realized accurate location to wind power equipment in X, Y, Z three directions, all components can be according to the size and shape of equipment and carry out flexible adjustment, and the versatility is strong, and combined the rigid locking of screw drive and the flexible self -adaptation of hydraulic, universal hinge, can provide enough constraint force, can avoid stress concentration to cause damage to wind power equipment surface, and the structure is stable, and main adjusting mechanism all adopts manual mechanical operation, reduced use and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of heavy cargo transportation technology, and in particular to a vehicle-mounted limiting structure for heavy cargo transportation. Background Technology

[0002] Wind power equipment, such as blades and towers, is characterized by its extra-long, extra-heavy, and irregular shape. Its center of gravity is complex and its structural rigidity is limited. During road transportation, it faces complex working conditions such as changing road conditions and inertial impacts. Its fixing and limiting are the key to ensuring the safety of the equipment and public transportation.

[0003] Existing technologies mostly use steel wire ropes and chains in conjunction with chain hoists for direct binding, which has the following drawbacks: 1) The fastening force is not easy to quantify and control. Too tight a force may damage the equipment, while too loose a force may cause it to loosen. 2) In order to adapt to the equipment's contour, a large amount of filler is often required, making installation cumbersome and unreliable. 3) The limiting points are mostly fixed hooks welded to the base, which cannot be flexibly adjusted according to the equipment's size and center of gravity, resulting in low versatility.

[0004] Therefore, in view of the three major defects of the existing technology, namely, difficulty in controlling the fastening force, reliance on filler to adapt to the contour, and inflexible adjustment of the fixed limiting point, which leads to cumbersome installation, low reliability and poor versatility, a vehicle-mounted limiting structure based on the transportation of large items can be designed, which can actively adapt to the shape of the equipment, provide multi-directional reliable limiting and is easy to adjust. Utility Model Content

[0005] In order to overcome the three major defects of existing technologies, namely, difficulty in controlling the fastening force, reliance on filler to adapt to the contour, and inflexible adjustment of the fixed limit point, which lead to cumbersome installation, low reliability and poor versatility.

[0006] The technical solution of this utility model is as follows: a vehicle-mounted limiting structure based on heavy-duty transportation, including a base frame supported on a transport flatbed truck, at least two sets of lateral limiting components on both sides of the base frame, at least two sets of longitudinal limiting components at the front and rear ends of the base frame, and several bottom support and lateral clamping components distributed on the base frame. The lateral limiting components include a lateral slide rail fixedly installed on the side of the base frame, a sliding base that slides with the lateral slide rail, a lifting column vertically fixed on the sliding base, a lateral adjusting screw threaded with the sliding base, and a handwheel fixedly connected to one end of the lateral adjusting screw. The top of the lifting column is hinged to a multi-directional adjusting arm through a hinge shaft, and the end of the multi-directional adjusting arm is connected to a contour pressure head through a universal ball joint. The longitudinal limiting assembly includes a buffer pressure cylinder fixed to the upper end of the base frame, and a push plate fixedly connected to the end of the piston rod of the buffer pressure cylinder; The bottom support and lateral clamping assembly includes a bottom support base, a pin seat fixedly connected to the side of the bottom support base, a lateral clamping arm hinged in the pin seat, and a locking bolt threaded into the bottom support base and the lateral clamping arm.

[0007] Preferably, the base frame includes two parallel main longitudinal beams, multiple crossbeams fixedly connected between the two main longitudinal beams, and reinforcing ribs welded to the connection between the main longitudinal beams and the crossbeams. The upper surfaces of the main longitudinal beams and the crossbeams are provided with a matrix-distributed array of positioning holes.

[0008] Preferably, the lifting column is a sleeve structure, including an outer tube fixedly connected to the sliding base, and an inner column sleeved inside the outer tube and capable of vertical extension and retraction. The outer tube and the inner column are fixed in relative position by a through-hole column pin.

[0009] Preferably, the multi-directional adjusting arm consists of a first connecting rod, a second connecting rod, and an adjusting screw sleeve. The adjusting screw sleeve has threads with opposite directions at both ends, which are threaded to the first connecting rod and the second connecting rod respectively. The conforming pressure head consists of a pressure head base and a polymer wear-resistant liner.

[0010] Preferably, the buffer hydraulic cylinder is a self-locking hydraulic cylinder, and is equipped with a manual pump station connected via an oil pipe.

[0011] Preferably, the lower part of the bottom support is fixed with a positioning pin that matches the positioning hole array on the base frame.

[0012] Preferably, a rubber guard plate is bolted to the end of the lateral clamping arm.

[0013] The beneficial effects of this utility model are as follows: By combining multiple components such as lateral, longitudinal and bottom support, precise positioning of wind power equipment in the X, Y and Z directions is achieved. All components can be flexibly adjusted according to the size and shape of the equipment, which is highly versatile. It combines the rigid locking of screw drive with the flexible self-adaptation of hydraulic and universal joint, which can provide sufficient restraint force and avoid stress concentration that could damage the surface of the wind power equipment. The structure is stable and ensures safety and stability under harsh working conditions during the transportation of large items. The main adjustment mechanisms are all operated manually (such as handwheel, screw, manual pump station), which does not require external power and complex sensors, thus reducing the cost of use and maintenance. Attached Figure Description

[0014] Figure 1 The diagram shown is a first three-dimensional structural schematic of the vehicle-mounted limiting structure based on the transportation of large items according to this utility model. Figure 2 The diagram shown is a three-dimensional structural diagram of the base frame in the vehicle-mounted limiting structure for heavy-duty transportation of this utility model. Figure 3The diagram shown is a three-dimensional structural schematic of the longitudinal limiting component in the vehicle-mounted limiting structure for heavy-duty transportation of this utility model. Figure 4 The diagram shown is a three-dimensional structural schematic of the multi-directional adjusting arm in the vehicle-mounted limiting structure for heavy-duty transportation of this utility model. Figure 5 The diagram shown is a three-dimensional structural schematic of the first lateral limiting component in the vehicle-mounted limiting structure for heavy-duty transportation of this utility model. Figure 6 The diagram shown is a first three-dimensional structural schematic of the bottom support and lateral clamping components in the vehicle-mounted limiting structure for heavy-duty transportation of this utility model. Figure 7 The diagram shown is a second three-dimensional structural diagram of the bottom support and lateral clamping components in the vehicle-mounted limiting structure for heavy-duty transportation of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 1. Base frame; 101. Main longitudinal beam; 102. Crossbeam; 103. Reinforcing rib; 104. Array of positioning holes; 2. Lateral limiting assembly; 201. Handwheel; 202. Lateral adjusting screw; 203. Sliding base; 204. Outer tube; 205. Inner column; 206. Multi-directional adjusting arm; 2061. First connecting rod; 2062. Second connecting rod; 2063. Adjusting screw sleeve; 207. Lateral slide rail; 208. Column pin; 209. Universal ball joint; 210. Contouring pressure head; 3. Longitudinal limiting assembly; 301. Buffer pressure cylinder; 302. Push plate; 4. Bottom support and lateral clamping assembly; 401. Positioning pin; 402. Bottom support seat; 403. Locking bolt; 404. Lateral clamping arm; 405. Pin seat; 406. Rubber guard plate. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Example 1: Transport limiting device for wind turbine blades Please see Figure 1 -and Figure 6This utility model provides an embodiment: a vehicle-mounted limiting structure for heavy-duty transportation, including a base frame 1 supported on a transport flatbed truck, at least two sets of lateral limiting components 2 disposed on both sides of the base frame 1, at least two sets of longitudinal limiting components 3 disposed at the front and rear ends of the base frame 1, and several bottom support and lateral clamping components 4 distributed on the base frame 1. The lateral limiting components 2 include a lateral slide rail 207 fixedly installed on the side of the base frame 1, a sliding base 203 slidably engaged with the lateral slide rail 207, a lifting column vertically fixed on the sliding base 203, a lateral adjusting screw 202 threadedly engaged with the sliding base 203, and a handwheel 201 fixedly connected to one end of the lateral adjusting screw 202; the top of the lifting column is hinged to a multi-directional adjusting arm 206 via a hinge shaft, and the end of the multi-directional adjusting arm 206 is connected to a contour pressure head 210 via a universal ball joint 209. The longitudinal limiting component 3 includes a buffer pressure cylinder 301 fixed to the upper end of the base frame 1, and a push plate 302 fixedly connected to the end of the piston rod of the buffer pressure cylinder 301. The bottom support and lateral clamping assembly 4 includes a bottom support base 402, a pin seat 405 fixedly connected to the side of the bottom support base 402, a lateral clamping arm 404 hinged in the pin seat 405, and a locking bolt 403 threadedly engaged with the bottom support base 402 and the lateral clamping arm 404.

[0018] The base frame 1 includes two parallel main longitudinal beams 101, multiple cross beams 102 fixedly connected between the two main longitudinal beams 101, and reinforcing ribs 103 welded to the connection between the main longitudinal beams 101 and the cross beams 102. The upper surfaces of the main longitudinal beams 101 and the cross beams 102 are provided with a matrix-distributed array of positioning holes 104.

[0019] Meanwhile, the lifting column is a sleeve structure, including an outer tube 204 fixedly connected to the sliding base 203, and an inner column 205 sleeved inside the outer tube 204 and capable of vertical extension and retraction. The outer tube 204 and the inner column 205 are fixed in relative position by a through column pin 208. The multi-directional adjusting arm 206 is composed of a first connecting rod 2061, a second connecting rod 2062 and an adjusting screw sleeve 2063. The adjusting screw sleeve 2063 has threads with opposite directions at both ends, which are threaded to the first connecting rod 2061 and the second connecting rod 2062 respectively. The contouring pressure head 210 is composed of a pressure head base and a polymer wear-resistant liner.

[0020] In addition, the buffer hydraulic cylinder 301 is a self-locking hydraulic cylinder and is equipped with a manual pump station connected by an oil pipe. The lower part of the bottom support 402 is fixed with a positioning pin 401 that cooperates with the positioning hole array 104 on the base frame 1. The end of the lateral clamping arm 404 is fixedly connected with a rubber guard plate 406 by bolts.

[0021] During operation, the base frame 1 is fixed to the bearing surface of the standard transport flatbed by high-strength bolts. The base frame 1 is formed by welding two parallel main longitudinal beams 101, multiple cross beams 102 fixedly connected between the two main longitudinal beams 101, and several reinforcing ribs 103 welded to the connection between the main longitudinal beams 101 and the cross beams 102, forming a solid bearing foundation. The upper surfaces of all the main longitudinal beams 101 and cross beams 102 are evenly distributed with positioning hole arrays 104. During transportation, the bottom support and lateral clamping assembly 4 is first inserted into the hole of the base frame 1 through the positioning pin 401 at its lower part to achieve initial positioning. The wind turbine blade is placed in the V-groove at the top of the bottom support 402. Then, the locking bolt 403 is loosened, and the lateral clamping arm 404 is driven to rotate around the pin seat 405 so that the rubber guard plate 406 at its end gently contacts the side of the blade. Finally, the lateral clamping arm 404 is locked by the locking bolt 403 to complete the bottom support and initial lateral constraint of the blade. Next, adjust the two sets of transverse limiting components 2. The transverse slide rail 207 of the component is fixed to the outside of the main longitudinal beam 101 of the base frame 1 by bolts. Loosen the column pin 208 and adjust the height of the inner column 205 of the lifting column in the outer tube 204 so that the multi-directional adjusting arm 206 on it is roughly aligned with the web of the blade. Rotate the handwheel 201 to drive the sliding base 203 to move along the transverse slide rail 207 through the transverse adjusting screw 202, so that the contouring pressure head 210 is close to the blade. Then, rotate the adjusting screw sleeve 2063 of the multi-directional adjusting arm 206 to change the arm length composed of the first connecting rod 2061 and the second connecting rod 2062. Finally, the polymer wear-resistant liner of the contouring pressure head 210 is made to fit the blade surface with a suitable angle and pressure. The universal ball joint 209 connecting the end of the multi-directional adjusting arm 206 and the contouring pressure head 210 ensures that the pressure head can adapt to the complex curved surface of the blade.

[0022] Finally, adjust the longitudinal limiting components 3 located at the root and tip of the blade, operate the manual pump station to supply oil to the buffer hydraulic cylinder 301, so that its piston rod extends and pushes the push plate 302 fixed at the end of the piston rod to press against the end of the blade. The self-locking function of the hydraulic cylinder can maintain the thrust, while the hydraulic medium itself has a certain buffering and shock absorption effect.

[0023] Example 2: Transport limiting device for wind turbine tower Because the tower has a cylindrical structure, its center of gravity is stable but it is prone to rolling. Therefore, the bottom support and the lateral clamping assembly 4 must be arranged in pairs to hold the tower from both sides. The top V-shaped groove of the bottom support 402 is changed to an arc shape, and its area is increased. The rubber guard plate 406 at the end of the lateral clamping arm 404 is also changed to a concave arc surface accordingly (see...). Figure 7 ).

[0024] The function of the lateral limiting component 2 is to work in conjunction with the bottom component to form an "embracing" constraint, adjusting the multi-directional adjusting arm 206 to a roughly horizontal state, so that the contouring pressure head 210 applies a constraint force from the upper side of the tower to prevent it from jumping.

[0025] The arrangement of the longitudinal limiting component 3 is similar to that in Embodiment 1, and is used to prevent the tower from moving back and forth during transportation. Since the end face of the tower is flat, the push plate 302 can be designed as a flat steel plate.

[0026] Example 3: Transport limiter for mixed loading This embodiment describes the simultaneous transport of wind turbine blades and associated nacelle components on the same base frame 1.

[0027] In this case, the modular advantage of this utility model is fully demonstrated. Limiting components suitable for different equipment can be independently arranged in different areas of the base frame 1. For example, in the front half of the frame, components for fixing the blades are arranged in the manner of Embodiment 1; in the rear half of the frame, more bottom support and lateral clamping components 4 and a lateral limiting component 2 that adjusts the lifting column to the lowest position can be installed to fix the regularly shaped cabin body.

[0028] The operation of each component does not interfere with each other, and all components are quickly positioned and installed through the positioning hole array 104 on the base frame 1, which greatly improves transportation efficiency and vehicle versatility.

[0029] Through the above steps, and by combining multiple components such as lateral, longitudinal, and bottom supports, precise positioning of the wind turbine in the X, Y, and Z directions is achieved. All components can be flexibly adjusted according to the size and shape of the equipment, offering strong versatility. Combining the rigid locking of screw drive with the flexible self-adaptation of hydraulic and universal joints, it provides sufficient constraint force while avoiding stress concentration that could damage the surface of the wind turbine. The structure is stable, ensuring safety and stability under harsh conditions during the transport of large items. The main adjustment mechanisms are all manually operated, requiring no external power or complex sensors, thus reducing usage and maintenance costs. This addresses the three major shortcomings of existing technologies: difficulty in controlling fastening force, reliance on filler to adapt to the contour, and fixed limiting points that cannot be flexibly adjusted, leading to cumbersome installation, low reliability, and poor versatility.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A vehicle-mounted limiting structure for heavy-duty transportation, comprising a base frame (1) supported on a transport flatbed truck, at least two sets of lateral limiting components (2) disposed on both sides of the base frame (1), at least two sets of longitudinal limiting components (3) disposed at the front and rear ends of the base frame (1), and a plurality of bottom support and lateral clamping components (4) distributed on the base frame (1), characterized in that: The lateral limiting assembly (2) includes a lateral slide rail (207) fixedly installed on the side of the base frame (1), a sliding base (203) that slides with the lateral slide rail (207), a lifting column that is vertically fixed on the sliding base (203), a lateral adjusting screw (202) that is threaded with the sliding base (203), and a handwheel (201) fixedly connected to one end of the lateral adjusting screw (202); the top of the lifting column is hinged to a multi-directional adjusting arm (206) through a hinge shaft, and the end of the multi-directional adjusting arm (206) is connected to a contour pressure head (210) through a universal ball joint (209); The longitudinal limiting component (3) includes a buffer pressure cylinder (301) fixed to the upper end of the base frame (1) and a push plate (302) fixedly connected to the end of the piston rod of the buffer pressure cylinder (301). The bottom support and side clamping assembly (4) includes a bottom support base (402), a pin seat (405) fixedly connected to the side of the bottom support base (402), a side clamping arm (404) hinged in the pin seat (405), and a locking bolt (403) threadedly engaged with the bottom support base (402) and the side clamping arm (404).

2. The vehicle-mounted limiting structure for heavy-duty transportation according to claim 1, characterized in that: The base frame (1) includes two parallel main longitudinal beams (101), multiple cross beams (102) fixedly connected between the two main longitudinal beams (101), and reinforcing ribs (103) welded to the connection between the main longitudinal beams (101) and the cross beams (102). The upper surfaces of the main longitudinal beams (101) and the cross beams (102) are provided with a matrix-distributed array of positioning holes (104).

3. The vehicle-mounted limiting structure for heavy-duty transportation according to claim 1, characterized in that: The lifting column is a sleeve structure, including an outer tube (204) fixedly connected to the sliding base (203) and an inner column (205) sleeved inside the outer tube (204) and capable of vertical extension and retraction. The outer tube (204) and the inner column (205) are fixed in relative position by a through column pin (208).

4. The vehicle-mounted limiting structure for heavy-duty transportation according to claim 1, characterized in that: The multi-directional adjusting arm (206) is composed of a first connecting rod (2061), a second connecting rod (2062) and an adjusting screw sleeve (2063). The adjusting screw sleeve (2063) has threads with opposite directions at both ends, which are threaded to the first connecting rod (2061) and the second connecting rod (2062) respectively. The contouring pressure head (210) is composed of a pressure head base and a polymer wear-resistant liner.

5. The vehicle-mounted limiting structure for heavy-duty transportation according to claim 1, characterized in that: The buffer hydraulic cylinder (301) is a self-locking hydraulic cylinder and is equipped with a manual pump station connected via an oil pipe.

6. The vehicle-mounted limiting structure for heavy-duty transportation according to claim 2, characterized in that: The lower part of the bottom support (402) is fixed with a positioning pin (401) that cooperates with the positioning hole array (104) on the base frame (1).

7. The vehicle-mounted limiting structure for heavy-duty transportation according to claim 1, characterized in that: The end of the lateral clamping arm (404) is fixedly connected to a rubber guard plate (406) by bolts.

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