A hydraulic lifting steel pipe conveying vehicle
By adopting a multi-point limiting guide wheel and guide rail structure and a motor helical gear reducer drive on the steel pipe conveying vehicle, the problems of jamming and shaking during the steel pipe lifting process are solved, and the stable and smooth conveying of steel pipes is achieved.
Patent Information
- Application Number
- CN202521867173.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-03
- Estimated Expiration
- 2035-09-01
AI Technical Summary
Existing steel pipe transport vehicles suffer from problems when lifting large steel pipes, such as guide columns that are not perpendicular or parallel, causing jamming and shaking. They also have large inertia and poor stability when starting or stopping, and the steel sand wears down the guide columns, affecting the smoothness of lifting and lowering.
The guide wheel and guide rail structure with multi-point limiting is adopted. The walking wheels are driven by a motor and helical gear reducer. The support plate made of polytetrafluoroethylene and the hydraulic cylinder lifting device are used to ensure the stable lifting of the steel pipe.
It improves the smoothness and stability of steel pipe lifting, reduces guide wheel wear, avoids the impact of steel sand entering, and ensures the smooth operation of steel pipe during start-up and shutdown.
Smart Images
Figure CN224450226U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pipeline transportation equipment technology, specifically a hydraulic lifting steel pipe transportation vehicle. Background Technology
[0002] When performing rust removal and corrosion protection on steel pipes, the pipes are transported either manually by rolling or using a dedicated steel pipe transport vehicle. For larger steel pipes with a diameter of 500mm or more, steel pipe transport vehicles are often used. The operation involves two transport vehicles, spaced approximately 6 meters apart to ensure stability during lifting. The vehicles move along tracks and employ a hydraulic lifting system. Lifting is achieved by a hydraulic cylinder supporting two balancing guide columns on either side. The vehicle travels via a motor-driven reducer and chain-driven wheels. The steel pipes are stored on two longer tracks parallel to and above the transport vehicle platform, allowing the transport vehicle to pass underneath the pipes.
[0003] However, existing pipe transport vehicles use a single lifting cylinder with vertical parallel guide columns on both sides. Prolonged use can lead to safety hazards: Because the steel pipes are heavy, they roll left and right as the transport vehicle lifts, colliding with the lifting device. Over time, the guide columns may become misaligned or non-parallel, causing jamming and swaying during lifting, resulting in poor pipe lifting smoothness. Furthermore, when used in conjunction with shot blasting processes, the steel pipe transport vehicle approaches the shot blasting machine closely. This proximity causes small amounts of steel shot to fall around the guide columns. After a period of use, this steel shot can be carried into the guide column bushings by the up-and-down movement of the guide columns, causing wear and jamming, further reducing the smoothness of pipe lifting. In addition, when carrying heavy steel pipes, there will be a large inertia at the moment of starting or stopping. When the pipe transport vehicle moves back and forth by being driven by a chain, the chain drive itself has a certain degree of starting jamming, which will cause even greater inertia at the moment of starting or stopping the steel pipe, making the stability of the pipe transport vehicle poor when starting and stopping. Utility Model Content
[0004] To address the issue of low smoothness in existing pipe lifting and lowering technologies, this utility model provides a hydraulic lifting steel pipe conveying vehicle.
[0005] Therefore, the specific technical solution adopted by this utility model is as follows:
[0006] This utility model provides a hydraulic lifting steel pipe conveying vehicle, characterized in that it includes:
[0007] The base has multiple sets of wheels at the bottom and two sets of fixed brackets at intervals on the top.
[0008] The lifting device includes a mounting frame, a mounting base, guide wheels, a guide rail, and a hydraulic cylinder. The hydraulic cylinder is fixedly mounted on the base, and the output shaft of the hydraulic cylinder is fixedly connected to the mounting frame. The mounting frame is located between two sets of fixed frames. Multiple sets of mounting bases are fixedly mounted at intervals along the vertical direction on both sides of the mounting frame. The guide wheels are rotatably mounted on the mounting bases. A guide rail is fixedly mounted on the fixed frame, and the guide rail abuts against the guide wheels.
[0009] A bracket, which is disposed on top of the mounting bracket;
[0010] A power unit is mounted on the base and is used to drive the walking wheels to rotate.
[0011] Preferably, the power unit includes a motor and a helical gear reducer. The helical gear reducer is fixedly mounted on the base. The motor is fixedly connected to the helical gear reducer, and the output shaft of the motor is driven by the helical gear reducer. The traveling wheels are coaxially fixedly mounted with shaft members, which are rotatably mounted on the base. The output shaft of the helical gear reducer is driven by the shaft members on a set of traveling wheels.
[0012] Preferably, the walking wheels are arranged in pairs, with a rotating shaft between each pair of walking wheels, and each end of the rotating shaft is fixedly connected to an axle on a set of walking wheels.
[0013] Preferably, the top of the bracket is provided with two support plates arranged in a V-shape on both sides, and the support plates are made of polytetrafluoroethylene.
[0014] Preferably, each set of fixed frames is provided with two sets of guide rails at intervals, and each set of guide rails abuts against two sets of guide wheels.
[0015] Preferably, the maximum stroke of the hydraulic cylinder output shaft is 300mm.
[0016] Preferably, a hydraulic station is provided on the base, and the hydraulic station is connected to the hydraulic cylinder through an oil pipe.
[0017] Preferably, the mounting bracket includes a top plate, a first side plate, and a second side plate. The first side plate and the second side plate are fixed to the bottom of the top plate, and two of each are provided. The two sets of first side plates and the two sets of second side plates are arranged alternately to form an installation space. The upper end of the hydraulic cylinder is located in the installation space and connected to the top plate. The mounting seat is fixedly installed on the first side plate.
[0018] The advantages of adopting the above technical solution are:
[0019] 1. When the hydraulic cylinder lifts the steel pipe on the mounting frame, the guide wheels on both sides of the mounting frame rise along the guide rails. The guide rails on both sides provide multi-point limiting guidance for the guide wheels and the mounting frame, ensuring smooth and stable pipe lifting and avoiding the impact of steel sand on the operation of the guide wheels and guide rails.
[0020] 2. The steel pipe conveyor base adopts a direct connection between the motor and the helical gear reducer to the traveling wheels, making it more stable when starting or stopping. Attached Figure Description
[0021] 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.
[0022] Figure 1 A schematic diagram of the structure of this utility model is shown;
[0023] Figure 2 A partial structural schematic diagram of this utility model is shown;
[0024] Figure 3 A partial cross-sectional view of the present invention is shown;
[0025] Figure 4 A partial structural schematic diagram of the bracket of this utility model is shown.
[0026] The components include: 1. Base; 2. Walking wheel; 201. Shaft member; 3. Fixing frame; 301. Guide rail; 4. Mounting frame; 401. Guide wheel; 402. Top plate; 403. First side plate; 404. Second side plate; 5. Bracket; 501. Support plate; 6. Hydraulic cylinder; 7. Motor 1; 8. Rotating shaft; 9. Hydraulic station. Detailed Implementation
[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0028] like Figure 1-4As shown in the figure, this utility model discloses a hydraulic lifting steel pipe conveying vehicle, including a base 1, a lifting device, a bracket 5, and a power unit. The bottom of the base 1 is provided with multiple sets of traveling wheels 2, and the top of the base 1 is fixedly provided with two sets of fixed frames 3 at intervals. The lifting device includes a mounting frame 4, a mounting seat, a guide wheel 401, a guide rail 301, and a hydraulic cylinder 6. The hydraulic cylinder 6 is fixedly provided on the base 1, and the output shaft of the hydraulic cylinder 6 is fixedly connected to the mounting frame 4. The mounting frame 4 is located between the two sets of fixed frames 3. Multiple sets of mounting seats are fixedly provided at intervals along the vertical direction on both sides of the mounting frame 4. The guide wheel 401 is rotatably provided on the mounting seat. The fixed frame 3 is fixedly provided with a guide rail 301, and the guide rail 301 abuts against the guide wheel 401. The bracket 5 is provided on the top of the mounting frame 4, and the power unit is provided on the base 1 and is used to drive the traveling wheels 2 to rotate.
[0029] In at least one embodiment, the power unit includes a motor 7 and a helical gear reducer. The helical gear reducer is fixedly mounted on the base 1. The motor 7 is fixedly connected to the helical gear reducer, and the output shaft of the motor 7 is driven by the helical gear reducer. The traveling wheels 2 are coaxially fixedly mounted with shaft members 201. The shaft members 201 are rotatably mounted on the base 1. The output shaft of the helical gear reducer is driven by the shaft members 201 on a set of traveling wheels 2. When the pipeline transport vehicle is moved, the motor 7 is started. The motor 7 is equipped with a frequency converter, which drives the shaft members 201 and the traveling wheels 2 to rotate through the helical gear reducer, thereby controlling the traveling direction and speed of the steel pipe transport vehicle, enabling it to start or stop slowly.
[0030] In at least one embodiment, the walking wheels 2 are arranged in pairs, with a rotating shaft 8 between each pair of walking wheels 2. The rotating shaft 8 is located between two adjacent sets of walking wheels 2, and each end of the rotating shaft 8 is fixedly connected to a shaft member 201 on one set of walking wheels 2. The rotating shaft 8 connects the shaft members 201 on the two sets of walking wheels 2, so that the motor 7 simultaneously drives the walking wheels 2 at both ends of the rotating shaft 8 to move.
[0031] In at least one embodiment, two support plates 501 arranged in a V-shape are provided on both sides of the top of the bracket 5. The support plates 501 are made of polytetrafluoroethylene (PTFE) and are connected and fixed to the bracket 5 by countersunk screws. When the steel pipe is placed on the bracket 5, it abuts against the top of the support plate 501. The soft properties and non-stick properties of the PTFE support plate 501 can effectively prevent the bracket 5 of the hydraulically lifted steel pipe conveyor from directly abutting against the steel pipe, thereby preventing damage to the surface of the steel pipe. In addition, the two support plates 501 arranged in a V-shape can limit the steel pipe and prevent the steel pipe from rolling accidentally.
[0032] In at least one embodiment, each set of fixed frames 3 is provided with two sets of guide rails 301 at intervals. Each set of guide rails 301 abuts against two sets of guide wheels 401. The two sets of guide rails 301 on each set of fixed frames 3 abut against and guide the two sets of guide wheels 401, thereby limiting the lifting and lowering of the mounting frame 4 at multiple points and ensuring that the mounting frame 4 drives the steel pipe to lift and lower stably.
[0033] In at least one embodiment, the maximum stroke of the output shaft of the hydraulic cylinder 6 is 300mm, which enables a single hydraulic cylinder 6 to lift and jack heavy steel pipes stably within the stroke, ensuring safe and stable lifting.
[0034] In at least one embodiment, the mounting frame 4 includes a top plate 402, a first side plate 403, and a second side plate 404. The first side plate 403 and the second side plate 404 are fixed to the bottom of the top plate 402, and there are two of each. The two sets of first side plates 403 and the two sets of second side plates 404 are arranged alternately to form an installation space. The upper end of the hydraulic cylinder 6 is located in the installation space and connected to the top plate 402. The mounting seat is fixedly installed on the first side plate 403. The installation space formed by the top plate 402, the first side plate 403, and the second side plate 404 covers the hydraulic cylinder 6 to prevent steel sand and other materials from falling into the hydraulic cylinder 6 and to ensure the smooth operation of the hydraulic cylinder 6.
[0035] In at least one embodiment, the hydraulic station 9 includes a second motor, a piston pump, an oil tank, an oil suction pipe, an oil return pipe, and an oil delivery pipe. The oil tank is fixedly installed at the rear end of the base 1. The second motor and the piston pump are both fixedly installed at the top of the oil tank. The second motor is connected to the piston pump via a coupling. The piston pump draws hydraulic oil from the oil tank through the oil suction pipe and delivers high-pressure oil to the hydraulic cylinder 6 through the oil delivery pipe. The hydraulic cylinder 6 discharges the low-pressure oil after work back to the oil tank through the oil return pipe. The hydraulic station 9 ensures that the hydraulic cylinder 6 effectively lifts the steel pipe on the mounting bracket 4.
[0036] When transporting and lifting large-sized steel pipes, two transport vehicles are arranged at intervals, and the wheels 2 at the bottom of the base 1 of each transport vehicle travel along the track. The steel pipe is placed on the brackets 5 on top of the base 1 of the two transport vehicles. The two sets of brackets 5 support both ends of the steel pipe. Then, the power unit on the base 1 drives the wheels 2 to rotate, thereby moving the base 1 along the track. The synchronous movement of the two sets of bases 1 provides stable transport of the steel pipe. When lifting the steel pipe, the hydraulic cylinder 6 in the lifting device is activated. The output shaft of the hydraulic cylinder 6 drives the mounting frame 4 to rise vertically, thereby lifting the steel pipe. During the rise, the guide wheel 401 on the mounting frame 4 abuts against the guide rail 301 on the fixed frame 3 and moves upward along the guide rail 301. The guide rail 301 limits the guide wheel 401 and the mounting frame 4, thereby controlling and balancing the lifting device to ensure smooth lifting of the steel pipe and prevent the lifting device from tilting and the steel pipe from slipping. To prevent the lifting device from tilting, the lifting device of the conveyor is equipped with eight guide wheels 401. Each guide wheel 401 is equipped with two cylindrical roller bearings, which can withstand the gravity generated by the left and right swaying of the steel pipe and the weight of the steel pipe itself. When the steel sand falls into the guide rail 301, it will fall downwards and will not affect the normal limit of the guide rail 301. The guide rail 301 is vertically installed on the fixed frame 3, and there are two sets on each side of the fixed frame 4 for balancing the guide wheels 401 for positioning and guidance. In order to prevent the guide rail 301 from bending or displacing after long-term use, a 20mm steel plate is welded on the fixed frame 3, and the guide rail 301 is welded to the 20mm steel plate. The bracket 5 is connected and fixed to the mounting frame 4 by bolts or other detachable methods. Different specifications of bracket 5 can be replaced according to the diameter of the steel pipe being conveyed. The bracket 5 can also be designed with a V-shaped angle according to different pipe diameters to prevent the steel pipe from rolling left and right during the lifting process due to the steel pipe diameter being too small because the angle is too large.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A hydraulic lift pipe trolley, characterized by: include The base has multiple sets of wheels at the bottom and two sets of fixed brackets at intervals on the top. The lifting device includes a mounting frame, a mounting base, guide wheels, a guide rail, and a hydraulic cylinder. The hydraulic cylinder is fixedly mounted on the base, and the output shaft of the hydraulic cylinder is fixedly connected to the mounting frame. The mounting frame is located between two sets of fixed frames. Multiple sets of mounting bases are fixedly mounted at intervals along the vertical direction on both sides of the mounting frame. The guide wheels are rotatably mounted on the mounting bases. A guide rail is fixedly mounted on the fixed frame, and the guide rail abuts against the guide wheels. A bracket, which is disposed on top of the mounting bracket; A power unit is mounted on the base and is used to drive the walking wheels to rotate.
2. The hydraulic lift pipe carrier vehicle according to claim 1, wherein: The power unit includes a motor and a helical gear reducer. The helical gear reducer is fixedly mounted on the base. The motor is fixedly connected to the helical gear reducer, and the output shaft of the motor is driven by the helical gear reducer. The walking wheels are coaxially fixedly mounted with shaft members, which are rotatably mounted on the base. The output shaft of the helical gear reducer is driven by the shaft members on a set of walking wheels.
3. The hydraulic lift pipe hauler of claim 2, wherein: The wheels are arranged in pairs, with a pivot between each pair of wheels. The two ends of the pivot are fixedly connected to the axle members on each of the pairs of wheels.
4. The hydraulic lift pipe hauler of claim 1, wherein: The bracket has two support plates arranged in a V-shape on both sides of its top, and the support plates are made of polytetrafluoroethylene.
5. The hydraulic lift pipe cart according to claim 4, wherein: Each set of fixed frames is equipped with two sets of guide rails at intervals, and each set of guide rails abuts against two sets of guide wheels.
6. The hydraulic lift pipe hauler of claim 1, wherein: The maximum stroke of the hydraulic cylinder output shaft is 300mm.
7. The hydraulic lift pipe hauler of claim 1, wherein: A hydraulic station is installed on the base, and the hydraulic station is connected to the hydraulic cylinder through oil pipes.
8. The hydraulic lift pipe hauler of claim 1, wherein: The mounting frame includes a top plate, a first side plate, and a second side plate. The first side plate and the second side plate are fixed to the bottom of the top plate, and there are two of each. The two sets of first side plates and the two sets of second side plates are arranged alternately to form an installation space. The upper end of the hydraulic cylinder is located in the installation space and connected to the top plate. The mounting seat is fixedly installed on the first side plate.