A sliding assembly for large diameter pipe installation

Abstract

This utility model discloses a sliding combination device for installing large-diameter pipes, including a mobile trolley. The mobile trolley includes a chassis with multiple parallel slide rails along its front-to-back direction. Two sets of sliders slide within the slide rails. One set of sliders has a left baffle and a left support plate fixedly connected to it, and the other set of sliders has a right baffle and a right support plate fixedly connected to it. The left and right baffles are perpendicular to the chassis; the left and right support plates are parallel to the chassis. The left and right support plates are arranged front and rear, and each has a rack fixedly connected to one side facing the other. Both racks mesh with a cylindrical gear, which is driven to rotate by a first rotating mechanism. The first rotating mechanism includes a horizontal rotating shaft and a vertical rotating shaft. A first bevel gear is fixedly connected to the horizontal rotating shaft, and a second bevel gear is fixedly connected to the vertical rotating shaft. The first and second bevel gears mesh with each other. The cylindrical gear is fixedly connected to the vertical rotating shaft. The horizontal rotating shaft is driven to rotate by a first motor or a first handwheel. This utility model can clamp pipes of different diameters.

Description

Technical Field

[0001] This utility model relates to the field of pipeline construction technology, and in particular to a sliding combination device for the installation of large-diameter pipelines. Background Technology

[0002] Large-diameter pipelines refer to pipelines with a large diameter, widely used in industry, construction, and other fields. They are typically used to transport large quantities of liquids, gases, or solid materials, meeting the needs of engineering projects. These pipelines can be made of materials such as steel, plastic, and fiberglass, possessing high load-bearing capacity and corrosion resistance. Currently, due to limited installation space, special equipment such as cranes cannot enter, often necessitating the use of sliding combination devices for moving large-diameter pipelines to reduce construction difficulty. During movement and hoisting, large-diameter pipelines are prone to swaying, tilting, or even overturning, requiring additional stabilization measures. Indoor lifting equipment (such as small forklifts, manual / electric hoists, and hydraulic lift trucks) may lack the lifting capacity, lifting height, and range of motion sufficient for handling large-diameter pipelines. When handling pipes of different diameters, handling equipment (such as forklifts) may overturn under excessive load or improper operation. Summary of the Invention

[0003] This utility model provides a sliding combination device for installing large-diameter pipes to solve the technical problems existing in the prior art.

[0004] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is as follows:

[0005] A sliding assembly for installing large-diameter pipes includes a mobile trolley, which has a chassis for supporting the pipe. Multiple parallel slide rails are provided on the chassis along the front-to-back direction. Two sets of sliders are slidably fitted within the slide rails. One set of sliders has a left baffle and a left support plate fixedly connected to it, and the other set of sliders has a right baffle and a right support plate fixedly connected to it. The left and right baffles are perpendicular to the chassis; the left and right support plates are parallel to the chassis. The left and right support plates are arranged front to back, and racks are fixedly connected to each of them on opposite sides. Both racks mesh with a cylindrical gear, which is driven to rotate by a first rotating mechanism.

[0006] The first rotating mechanism includes a horizontal rotating shaft and a vertical rotating shaft. A first bevel gear is fixedly connected to the horizontal rotating shaft, and a second bevel gear is fixedly connected to the vertical rotating shaft. The first bevel gear and the second bevel gear mesh with each other. A cylindrical gear is fixedly connected to the vertical rotating shaft. The horizontal rotating shaft is driven to rotate by a first motor or a first handwheel.

[0007] When the cylindrical gear rotates in the forward direction, the left and right support plates move in opposite directions, causing the left and right baffles to move in opposite directions to clamp the pipe. When the cylindrical gear rotates in the reverse direction, the left and right support plates move in opposite directions, causing the left and right baffles to move in opposite directions to release the pipe.

[0008] Furthermore, the first motor is a finite torque motor.

[0009] Furthermore, when the horizontal rotating shaft is driven by the first handwheel, the first rotating mechanism is provided with a positioning pin for limiting the rotation of the horizontal rotating shaft; a plurality of positioning pin holes A are arranged circumferentially along the horizontal rotating shaft on the side of the chassis opposite to the first handwheel, and a positioning pin hole B opposite to the positioning pin hole A is provided on the first handwheel. When the handwheel is rotated to the position, the positioning pin passes through the positioning pin hole B of the first handwheel and is inserted into the positioning pin hole A on the side of the chassis to fix the handwheel; before the handwheel is rotated, the positioning pin is pulled out.

[0010] Furthermore, the first handwheel is a circular disc handwheel, with multiple locating pin holes B arranged circumferentially on the circular disc of the first handwheel.

[0011] Furthermore, the chassis is also equipped with a lifting clamping structure for clamping the pipe downwards. The lifting clamping structure includes: a fixed frame perpendicular to the chassis, a ball screw installed parallel to the fixed frame, a horizontal clamping plate fixed to the nut of the ball screw, and a second motor or a second handwheel that drives the screw of the ball screw to rotate. When the horizontal clamping plate presses the pipe downwards, the clamping plate contacts the inner surface of the pipe.

[0012] Furthermore, the lifting and clamping structure is located at the front and / or rear end of the chassis; an electric push rod that can extend and retract forward and backward is provided at the front and / or rear end of the chassis, and the lower end of the lifting and clamping structure is fixedly connected to the extension end of the electric push rod.

[0013] Furthermore, the slider has balls embedded in its surface that mates with the slide rail.

[0014] Furthermore, the slide is equipped with ball guide grooves to guide the rolling direction of the balls.

[0015] Furthermore, the slide is a dovetail groove or an inverted T-shaped groove, and the lower cross section of the slider is a dovetail or inverted T-shaped shape that matches the dovetail groove or inverted T-shaped groove.

[0016] Furthermore, the number of front and rear sliding tracks on the chassis is ≥2.

[0017] The advantages and positive effects of this utility model are:

[0018] In this invention, by setting a horizontal rotating shaft and a vertical rotating shaft, when the horizontal rotating shaft is driven to rotate, it sequentially drives the vertical rotating shaft to rotate through the first bevel gear and the second bevel gear, which in turn drives the cylindrical gear to rotate. When the cylindrical gear rotates in the forward direction, the left and right support plates move in opposite directions, thereby clamping the pipe. When the cylindrical gear rotates in the reverse direction, the left and right support plates move in opposite directions, thereby releasing the pipe. This achieves pipe fixation, prevents the pipe from falling during movement, and improves work safety.

[0019] In this invention, a lifting clamping structure that clamps the pipe downwards is fixed to the chassis, thereby pressing the pipe downwards and further strengthening its fixation. This invention also allows for moving the pressure plate inside the pipe and pressing against the inner wall, as well as adjusting the distance between the support plates on the left and right sides. This allows for clamping pipes of different diameters, expanding the device's applicability. It can transport pipes of various diameters.

[0020] In this invention, when the horizontal rotating shaft is driven by the first handwheel, the limiting function is achieved through the mutual cooperation between the first handwheel, the positioning pin, the positioning pin hole A, and the positioning pin hole B. This prevents the support plate from rotating in the opposite direction due to the weight of the pipe, thus better supporting the pipe and improving safety. Attached Figure Description

[0021] Figure 1 This is a perspective view of a sliding combination device for installing large-diameter pipes according to the present invention;

[0022] Figure 2 This is a schematic diagram of a left and right clamping mechanism according to the present invention;

[0023] Figure 3 This is a schematic diagram of a lifting and clamping structure according to the present invention;

[0024] Figure 4 for Figure 1 Enlarged view of part A;

[0025] Figure 5 for Figure 3 Enlarged view of part B.

[0026] Legend:

[0027] 1. Chassis; 2. Roller; 3. Handwheel; 4. Locating pin; 5. Crank handle; 6. Horizontal rotating shaft; 7. First bevel gear; 8. Second bevel gear; 9. Vertical rotating shaft; 10. Cylindrical gear; 11. Left support plate; 12. Slider; 13. Slide rail; 14. Right support plate; 15. Left baffle; 16. Right baffle; 17. Rack; 18. Fixing bracket; 19. Second handwheel; 20. Screw of ball screw; 21. Rear horizontal clamp; 22. Front horizontal clamp; 23. Ball guide groove; 24. Ball; 25. Ball retainer; 26. Locating pin hole A; 27. Locating pin hole B. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0029] In the description of this utility model, the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; or an electrical connection or signal transmission. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0030] Please see Figures 1 to 5 A sliding assembly for installing large-diameter pipes includes a mobile trolley. The mobile trolley includes a chassis 1 for carrying the pipe and rollers 2 mounted under the chassis 1. The chassis 1 has multiple parallel slide rails 13 along the front-rear direction. Two sets of sliders 12 are slidably fitted in the slide rails 13. A left baffle 15 and a left support plate 11 are fixedly connected to one set of sliders 12, and a right baffle 16 and a right support plate 14 are fixedly connected to the other set of sliders 12. The left baffle 15 and the right baffle 16 are perpendicular to the chassis 1. The left support plate 11 and the right support plate 14 are parallel to the chassis 1. The left support plate 11 and the right support plate 14 are arranged front to back. Both of them have racks 17 fixedly connected to their opposite sides. Both racks 17 mesh with a cylindrical gear 10, which is driven to rotate by a first rotating mechanism.

[0031] The first rotating mechanism includes a horizontal rotating shaft 6 and a vertical rotating shaft 9. A first bevel gear 7 is fixedly connected to the horizontal rotating shaft 6, and a second bevel gear 8 is fixedly connected to the vertical rotating shaft 9. The first bevel gear 7 and the second bevel gear 8 mesh with each other. A cylindrical gear 10 is fixedly connected to the vertical rotating shaft 9. The horizontal rotating shaft 6 is driven to rotate by a first motor or a first handwheel.

[0032] The chassis 1 has a bearing hole through which the vertical rotating shaft 9 passes; the vertical rotating shaft 9 can be mounted on the chassis 1 via a bearing disposed in the bearing hole. The vertical rotating shaft 9 is fixedly connected to the inner ring of the bearing, and the outer ring of the bearing is fixedly connected to the chassis 1. The vertical rotating shaft 9 is rotatably connected to the chassis 1.

[0033] The chassis 1 has a vertical plate for mounting a horizontal rotating shaft 6. The vertical plate is perpendicular to the bottom surface of the chassis 1 and has bearing holes. The horizontal rotating shaft 6 can be rotatably connected to the vertical plate through a bearing installed in the bearing hole. The horizontal rotating shaft 6 is fixedly connected to the inner ring of the bearing, and the outer ring of the bearing is fixedly connected to the vertical plate. The horizontal rotating shaft 6 is rotatably connected to the vertical plate.

[0034] The chassis 1 also has holes or slots to accommodate the horizontal rotating shaft 6, the first bevel gear 7, and the second bevel gear 8; the horizontal rotating shaft 6 can be mounted on the chassis 1 via bearings. The horizontal rotating shaft 6 is rotatably connected to the chassis 1.

[0035] When the horizontal rotating shaft 6 is driven to rotate, the horizontal rotating shaft 6 drives the vertical rotating shaft 9 to rotate through the first bevel gear 7 and the second bevel gear 8 in sequence, which in turn drives the cylindrical gear 10 to rotate.

[0036] When the cylindrical gear 10 rotates in the forward direction, the left support plate 11 and the right support plate 14 move towards each other in the left and right directions; and cause the left baffle 15 and the right baffle 16 to move towards each other in the left and right directions to clamp the pipe; when the cylindrical gear 10 rotates in the reverse direction, the left support plate 11 and the right support plate 14 move in opposite directions in the left and right directions; and cause the left baffle 15 and the right baffle 16 to move in opposite directions in the left and right directions to release the pipe.

[0037] Two sets of sliders 12 that slide in cooperation with slide rail 13, a left baffle 15 and a left support plate 11 fixedly connected to one set of sliders 12, and a right baffle 16 and a right and left support plate 11 fixedly connected to the other set; racks 17 installed on opposite sides of the left support plate 11 and the right support plate 14, cylindrical gears 10 meshing with the two racks 17 and the first rotating mechanism together constitute the left and right clamping mechanism of the pipe.

[0038] Preferably, the first motor can be a finite-angle torque motor. The forward and reverse rotation of the finite-angle torque motor is controlled by a conventional forward and reverse circuit. A finite-angle torque motor is a servo motor in which the stator windings are energized with DC current and the rotor directly drives the load within a limited angle. It features a small electromechanical time constant and large angular acceleration. The position servo system formed by it and a sensor has a large output torque and high positioning accuracy.

[0039] Preferably, when the horizontal rotating shaft 6 is driven by the first handwheel, the first rotating mechanism may be provided with a positioning pin 4 for limiting the rotation of the horizontal rotating shaft 6; a plurality of positioning pin holes A26 are arranged circumferentially along the horizontal rotating shaft 6 on the side of the chassis 1 opposite to the first handwheel, and a positioning pin hole B27 opposite to the positioning pin hole A26 is provided on the first handwheel. When the handwheel is rotated to the position, the positioning pin 4 passes through the positioning pin hole B27 of the first handwheel and is inserted into the positioning pin hole A26 on the side of the chassis 1 to fix the handwheel; before the handwheel is rotated, the positioning pin 4 is pulled out.

[0040] Preferably, the first handwheel can be a circular disc handwheel, and multiple positioning pin holes B27 can be arranged circumferentially on the circular disc of the first handwheel.

[0041] Preferably, the chassis 1 may also be equipped with a lifting clamping structure for clamping the pipe downwards. The lifting clamping structure includes: a fixed frame 18 perpendicular to the chassis 1, a ball screw installed parallel to the fixed frame 18, a horizontal clamping plate fixed to the nut of the ball screw, and a second motor or a second handwheel 19 for driving the screw 20 of the ball screw to rotate. When the horizontal clamping plate presses the pipe downwards, the clamping plate contacts the inner surface of the pipe.

[0042] Preferably, the lifting and clamping structure can be located at the front end and / or rear end of the chassis 1. Specifically, when lifting and clamping structures are located at both the front and rear ends of the chassis 1, a telescopic electric push rod is provided at the front and / or rear ends of the chassis 1, and the lower end of the lifting and clamping structure is fixedly connected to the telescopic end of the electric push rod. The horizontal clamping plate of the lifting and clamping structure located at the front end is called the front horizontal clamping plate 22, and the horizontal clamping plate of the lifting and clamping structure located at the rear end is called the rear horizontal clamping plate 21.

[0043] The left baffle 15 and the right baffle 16 move in opposite directions, and the pipe lifting is placed on the left support plate 11 and the right support plate 14 of the moving trolley, and is located between the left baffle 15 and the right baffle 16. The electric push rod is driven to insert the front horizontal clamp 22 and the rear horizontal clamp 21 into the pipe.

[0044] Preferably, the second motor can be a finite torque motor.

[0045] Preferably, the slider 12 may have a ball bearing 24 embedded in its surface that mates with the slide rail 13.

[0046] Preferably, the slide 13 may be provided with a ball guide groove 23 to guide the rolling direction of the ball 24.

[0047] Preferably, the slide 13 can be a dovetail groove or an inverted T-shaped groove, and the lower cross section of the slider 12 is a dovetail shape or an inverted T-shaped shape that cooperates with the dovetail groove or the inverted T-shaped groove.

[0048] Preferably, the number of front slide rails 13 and the number of rear slide rails 13 of the chassis 1 can both be ≥2.

[0049] The structure and working principle of this utility model are further illustrated below with a preferred embodiment:

[0050] A sliding assembly for installing large-diameter pipes is characterized by comprising a mobile trolley, the mobile trolley including a chassis 1 for carrying the pipe and rollers 2 mounted below the chassis 1. The chassis 1 has multiple parallel slide rails 13 along its front-to-back direction. Two sets of sliders 12 are slidably fitted within the slide rails 13. One set of sliders 12 is fixedly connected to a left baffle 15 and a left support plate 11, and the other set of sliders 12 is fixedly connected to a right baffle 16 and a right support plate 14. The left baffle 15 and right baffle 16 are perpendicular to the chassis 1; the left support plate 11 and right support plate 14 are parallel to the chassis 1; the left support plate 11 and right support plate 14 are arranged front-to-back, and both have racks 17 fixedly connected to their opposite sides. Both racks 17 mesh with a cylindrical gear 10, which is driven to rotate by a first rotating mechanism.

[0051] The first rotating mechanism includes a horizontal rotating shaft 6 and a vertical rotating shaft 9. A first bevel gear 7 is fixedly connected to the horizontal rotating shaft 6, and a second bevel gear 8 is fixedly connected to the vertical rotating shaft 9. The first bevel gear 7 and the second bevel gear 8 mesh with each other. A cylindrical gear 10 is fixedly connected to the vertical rotating shaft 9. The horizontal rotating shaft 6 is driven to rotate by a first handwheel.

[0052] When the cylindrical gear 10 rotates in the forward direction, the left support plate 11 and the right support plate 14 move towards each other in the left and right directions; and cause the left baffle 15 and the right baffle 16 to move towards each other in the left and right directions to clamp the pipe; when the cylindrical gear 10 rotates in the reverse direction, the left support plate 11 and the right support plate 14 move in opposite directions in the left and right directions; and cause the left baffle 15 and the right baffle 16 to move in opposite directions in the left and right directions to release the pipe.

[0053] The horizontal rotating shaft 6 is driven by a first handwheel. The chassis 1 is provided with a positioning pin 4 to limit the rotation of the horizontal rotating shaft 6. Several positioning pin holes A26 are arranged around the horizontal rotating shaft 6 on the side of the chassis 1 opposite to the first handwheel. The first handwheel is provided with a positioning pin hole B27 opposite to the positioning pin hole A26. The first handwheel is provided with a handwheel disc 3 and a crank 5. The positioning pin holes B27 are evenly distributed around the handwheel disc 3. The positioning pin holes A26 are evenly distributed around the horizontal rotating shaft 6. If there are n positioning pin holes B27 and m positioning pin holes A26, the positioning accuracy can reach 360 / mn degrees.

[0054] After the handwheel is rotated to the correct position, the positioning pin 4 passes through the positioning pin hole B27 of the first handwheel and is inserted into the positioning pin hole A26 on the side of the chassis 1 to fix the handwheel; before rotating the handwheel, pull out the positioning pin 4.

[0055] The chassis 1 is also equipped with a lifting clamping structure for clamping the pipe downwards. The lifting clamping structure includes: a fixed frame 18 perpendicular to the chassis 1, a ball screw installed parallel to the fixed frame 18, a horizontal clamping plate fixed to the nut of the ball screw, and a second handwheel 19 for driving the screw 20 of the ball screw to rotate.

[0056] The ball screw 20 is fixed to the upper and lower sides of the fixed frame 18 by bearings.

[0057] The slider 12 has balls 24 embedded in its surface that mates with the slide rail 13. A ball retainer 25 is mounted on the surface of the slider 12.

[0058] The slide 13 is provided with a ball guide groove 23 to guide the rolling direction of the ball 24.

[0059] The slide 13 is an inverted T-shaped groove, and the lower section of the slider 12 is an inverted T-shaped section that matches the inverted T-shaped groove.

[0060] The chassis 1 has two front slide rails 13 and two rear slide rails 13.

[0061] The aforementioned chassis 1, roller 2, handwheel 3, positioning pin 4, crank handle 5, horizontal rotating shaft 6, first bevel gear 7, second bevel gear 8, vertical rotating shaft 9, cylindrical gear 10, left support plate 11, slider 12, slide rail 13, right support plate 14, left baffle 15, right baffle 16, rack 17, fixing frame 18, second handwheel 19, ball screw 20, rear horizontal clamping plate 21, front horizontal clamping plate 22, ball 24, ball retainer 25, ball guide groove 23, first motor, second motor, limited angle torque motor, etc., all adopt applicable devices and structures in the prior art, or adopt devices and structures in the prior art and construct them using conventional technical means.

[0062] The embodiments described above are only used to illustrate the technical ideas and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. The patent scope of this utility model should not be limited by these embodiments. That is, any equivalent changes or modifications made to the spirit disclosed in this utility model still fall within the patent scope of this utility model.

Claims

1. A sliding assembly device for installing large-diameter pipes, characterized in that, The device includes a mobile trolley, which includes a chassis for carrying pipes. The chassis has multiple parallel slide rails along the front-to-back direction. Two sets of sliders are slidably fitted within the slide rails. One set of sliders has a left baffle and a left support plate fixed to it, and the other set of sliders has a right baffle and a right support plate fixed to it. The left and right baffles are perpendicular to the chassis. The left and right support plates are parallel to the chassis. The left and right support plates are arranged front and back, and both of them have racks fixed to their opposite sides. Both racks mesh with a cylindrical gear, which is driven to rotate by a first rotating mechanism. The first rotating mechanism includes a horizontal rotating shaft and a vertical rotating shaft. A first bevel gear is fixedly connected to the horizontal rotating shaft, and a second bevel gear is fixedly connected to the vertical rotating shaft. The first bevel gear and the second bevel gear mesh with each other. A cylindrical gear is fixedly connected to the vertical rotating shaft. The horizontal rotating shaft is driven to rotate by a first motor or a first handwheel. When the cylindrical gear rotates in the forward direction, the left and right support plates move in opposite directions, causing the left and right baffles to move in opposite directions to clamp the pipe. When the cylindrical gear rotates in the reverse direction, the left and right support plates move in opposite directions, causing the left and right baffles to move in opposite directions to release the pipe.

2. The sliding assembly device for installing large-diameter pipes according to claim 1, characterized in that, The first motor is a finite torque motor.

3. The sliding assembly device for installing large-diameter pipes according to claim 1, characterized in that, When the horizontal rotating shaft is driven by the first handwheel, the first rotating mechanism is provided with a positioning pin for limiting the rotation of the horizontal rotating shaft; a number of positioning pin holes A are arranged circumferentially along the horizontal rotating shaft on the side of the chassis opposite to the first handwheel, and a positioning pin hole B opposite to the positioning pin hole A is provided on the first handwheel. When the handwheel is rotated to the position, the positioning pin passes through the positioning pin hole B of the first handwheel and is inserted into the positioning pin hole A on the side of the chassis to fix the handwheel; before the handwheel is rotated, the positioning pin is pulled out.

4. The sliding assembly device for installing large-diameter pipes according to claim 3, characterized in that, The first handwheel is a circular disc handwheel, with multiple locating pin holes B arranged circumferentially on the circular disc of the first handwheel.

5. The sliding assembly device for installing large-diameter pipes according to claim 1, characterized in that, The chassis is also equipped with a lifting clamping structure for clamping the pipe downwards. The lifting clamping structure includes: a fixed frame perpendicular to the chassis, a ball screw installed parallel to the fixed frame, a horizontal clamping plate fixed to the nut of the ball screw, and a second motor or a second handwheel that drives the screw of the ball screw to rotate. When the horizontal clamping plate presses the pipe downwards, the clamping plate contacts the inner surface of the pipe.

6. The sliding assembly device for installing large-diameter pipes according to claim 5, characterized in that, The lifting and clamping structure is located at the front and / or rear end of the chassis; an electric push rod that can extend and retract is provided at the front and / or rear end of the chassis, and the lower end of the lifting and clamping structure is fixedly connected to the extension end of the electric push rod.

7. The sliding assembly device for installing large-diameter pipes according to claim 1, characterized in that, The slider has balls embedded in its surface that mates with the slide rail.

8. The sliding assembly device for installing large-diameter pipes according to claim 7, characterized in that, The slide is equipped with ball guide grooves to guide the rolling direction of the balls.

9. The sliding assembly device for installing large-diameter pipes according to claim 1, characterized in that, The slide is a dovetail groove or an inverted T-shaped groove, and the lower section of the slider is a dovetail or inverted T-shaped shape that matches the dovetail groove or inverted T-shaped groove.

10. The sliding assembly device for installing large-diameter pipes according to claim 1, characterized in that, The number of front and rear tracks of the chassis is ≥2.

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