PE pipe horizontal conveying device

Abstract

This utility model discloses a horizontal conveying device for PE pipes, relating to the technical field of PE pipe conveying equipment. The device includes a traction frame, within which are several sets of crawler conveying mechanisms and a hydraulic system. Each crawler conveying mechanism includes a frame, a conveyor track, a drive unit, an upper adjusting idler assembly, a lower pressure roller assembly, and a lower floating roller assembly. The lower pressure roller assembly includes a roller shaft, a bearing housing, and a pressure sensor. The pressure sensor's detection surface contacts the wall of the mounting groove, sensing contact pressure and generating a pressure signal that is transmitted to a controller. The controller signal is connected to the hydraulic system. This utility model, by setting up the crawler conveying mechanism and the hydraulic system, allows the lower pressure roller assembly to detect the pressure signal and control the distance driven by the hydraulic cylinder to clamp the pipe. The upper adjusting idler assembly tensions the conveyor track, and the lower floating roller assembly adaptively clamps the pipe, avoiding insufficient or excessive clamping force and slippage.

Description

Technical Field

[0001] This utility model relates to the technical field of PE pipe conveying equipment, specifically a horizontal conveying device for PE pipes. Background Technology

[0002] A traction machine is a device that drives the horizontal transport of PE pipes. During the production of PE pipes, they are extruded from the die of an extruder. The extruded material is connected and fixed together with the traction pipe. The traction pipe pulls the material through the sizing sleeve, vacuum box and cooling box in sequence to complete the sizing, shaping and cooling. The movement of the pipe in the above process is all carried out by the traction machine.

[0003] When pulling large-diameter pipes, a tracked traction machine is generally used to provide traction force by contacting the pipe surface with the track. Traditional tracked traction machines mostly clamp directly with the track. If the clamping force is not well controlled, it can easily cause pipe deformation and slippage during the traction process. Therefore, we have further optimized and improved the control direction of the clamping force to address slippage and provide a horizontal conveying device for PE pipes. Utility Model Content

[0004] The purpose of this invention is to provide a horizontal conveying device for PE pipes, which solves the problem of controlling the clamping force of the tracked traction machine on the surface of the pipe.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PE pipe horizontal conveying device, including a traction machine frame, the front and back of the traction machine frame are provided with coaxially distributed inlet and outlet, the traction machine frame is provided with a number of track conveying mechanisms and hydraulic devices, the track conveying mechanisms are horizontally distributed, and the number of track conveying mechanisms are driven by the hydraulic devices to clamp and convey the pipe along the inlet to outlet direction.

[0006] The tracked conveyor mechanism includes a frame, a conveyor track, a drive unit, an upper adjusting idler assembly, a lower pressure roller assembly, and a lower floating roller assembly. The conveyor track is mounted on roller shafts at both ends of the frame and is driven to rotate by the drive unit. The upper adjusting idler assembly contacts the upper surface of the conveyor track. The lower pressure roller assembly is distributed at both ends of the conveyor track and contacts the lower surface of the conveyor track. The lower floating roller assembly is distributed between the lower pressure roller assemblies and contacts the lower surface of the conveyor track.

[0007] The lower pressure roller assembly includes a roller shaft, a bearing housing, and a pressure sensor. The two ends of the roller shaft are installed with the bearing housing. The pressure sensor is fixed on the top of the bearing housing. The bearing housing and the pressure sensor are installed in the mounting groove of the frame. The detection surface of the pressure sensor contacts the wall of the mounting groove to sense the contact pressure and generate a pressure signal, which is then transmitted to the controller. The controller signal is connected to the hydraulic device.

[0008] Preferably, several groups of the tracked conveyor mechanisms are arranged in a ring array within the traction frame in the axial direction from the inlet to the outlet.

[0009] Preferably, the upper adjusting roller assembly is spaced along the conveying direction of the conveyor belt;

[0010] The upper adjustable idler assembly includes a second roller shaft, a second bearing seat, and an adjusting screw. The two ends of the second roller shaft are installed with the second bearing seat. The second bearing seat is installed in the adjusting groove of the frame. The adjusting screw is threaded on the frame, and the end of the adjusting screw extends into the adjusting groove and is rotatably connected to the second bearing seat. The adjusting screw is distributed along the adjusting direction of the second bearing seat in the adjusting groove.

[0011] Preferably, the lower floating roller assemblies are spaced apart along the conveying direction of the conveyor belt;

[0012] The floating roller assembly includes a roller shaft three, a bearing seat three, a spring, and a movable rod. The two ends of the roller shaft three are installed with the bearing seat three. The bearing seat three is installed in the adjustment groove of the frame. The movable rod is movably installed on the crossbeam of the frame, and the end of the movable rod is fixed on the bearing seat three. The spring is distributed between the crossbeam of the frame and the bearing seat three and is fitted on the movable rod. The roller shaft three floats along the axial direction of the movable rod by the elastic support of the spring.

[0013] Preferably, the end of the frame is assembled with a linear guide rail provided on the traction machine frame via a slider, and the linear guide rail is distributed along the driving direction of the hydraulic device.

[0014] Preferably, the hydraulic device includes two sets of hydraulic cylinders symmetrically arranged on the track conveyor mechanism, the cylinder body of the hydraulic cylinder is fixed on the crossbeam inside the traction machine frame, and the piston rod of the hydraulic cylinder is fixed on the frame.

[0015] This utility model has the following beneficial effects:

[0016] This invention incorporates a tracked conveyor mechanism and a hydraulic system. The pressure signal detected by the lower pressure roller assembly is the pressure transmitted to the roller shaft after the pipe contacts the conveyor track and is monitored by a pressure sensor. The pressure signal controls the distance driven by the hydraulic cylinder to clamp the pipe. The upper adjusting roller assembly tensions the conveyor track, and the lower floating roller assembly adapts to clamping the pipe, avoiding problems such as insufficient or excessive clamping force and slippage. Attached Figure Description

[0017] Figure 1 This is a front view of the present utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the traction machine frame of this utility model;

[0019] Figure 3 This is a perspective view of the location of the tracked conveyor mechanism of this utility model;

[0020] Figure 4 This is a right view of the tracked conveyor mechanism of this utility model at its location;

[0021] Figure 5 This is a front view of the tracked conveyor mechanism of this utility model at its location.

[0022] In the diagram: 1. Traction machine frame; 11. Inlet; 12. Outlet; 13. Linear guide rail; 2. Tracked conveyor mechanism; 21. Frame; 211. Mounting slot; 212. Adjustment slot; 213. Slider; 22. Conveyor track; 23. Drive unit; 24. Upper adjusting idler assembly; 241. Roller shaft two; 242. Bearing seat two; 243. Adjusting screw; 25. Lower pressure roller assembly; 251. Roller shaft one; 252. Bearing seat one; 253. Pressure sensor; 26. Lower floating roller assembly; 261. Roller shaft three; 262. Bearing seat three; 263. Spring; 264. Movable rod; 3. Hydraulic device; 31. Hydraulic cylinder; 4. Pipe; 5. Controller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-5 As shown, this utility model provides a technical solution: a PE pipe horizontal conveying device, including a traction frame 1, with an inlet 11 and an outlet 12 coaxially distributed on the front and back of the traction frame 1, and a plurality of track conveying mechanisms 2 and a hydraulic device 3 inside the traction frame 1. The track conveying mechanisms 2 are horizontally distributed, and the plurality of track conveying mechanisms 2 are arranged in a ring array in the traction frame 1 around the axial direction from the inlet 11 to the outlet 12. The plurality of track conveying mechanisms 2 are driven by the hydraulic device 3 to clamp and convey the pipe 4 along the direction from the inlet 11 to the outlet 12.

[0025] The tracked conveyor mechanism 2 includes a frame 21, a conveyor track 22, a drive unit 23, an upper adjusting roller assembly 24, a lower pressure roller assembly 25, and a lower floating roller assembly 26. The conveyor track 22 is mounted on roller shafts at both ends of the frame 21 and is driven to rotate by the drive unit 23. The upper adjusting roller assembly 24 contacts the upper surface of the conveyor track 22. The lower pressure roller assembly 25 is distributed at both ends of the conveyor track 22 and contacts the lower surface of the conveyor track 22. The lower floating roller assembly 26 is distributed between the lower pressure roller assemblies 25 and contacts the lower surface of the conveyor track 22.

[0026] The end of the frame 21 is assembled with the linear guide rail 13 provided on the traction machine frame 1 via the slider 213. The linear guide rail 13 is distributed along the driving direction of the hydraulic device 3.

[0027] The upper adjustable idler assembly 24 is spaced along the conveying direction of the conveyor belt 22; the upper adjustable idler assembly 24 includes a second roller shaft 241, a second bearing seat 242, and an adjusting screw 243. The two ends of the roller shaft 241 are installed with the second bearing seat 242. The second bearing seat 242 is installed in the adjusting groove 212 of the frame 21. The adjusting screw 243 is threaded on the frame 21, and the end of the adjusting screw 243 extends into the adjusting groove 212 and is rotatably connected to the second bearing seat 242. The adjusting screw 243 is distributed along the adjusting direction of the second bearing seat 242 in the adjusting groove 212.

[0028] The lower pressure roller assembly 25 includes a roller shaft 251, a bearing housing 252, and a pressure sensor 253. The two ends of the roller shaft 251 are installed with the bearing housing 252. The pressure sensor 253 is fixed on the top of the bearing housing 252. The bearing housing 252 and the pressure sensor 253 are installed in the mounting groove 211 of the frame 21. The detection surface of the pressure sensor 253 contacts the wall of the mounting groove 211 to sense the contact pressure and generate a pressure signal, which is then transmitted to the controller 5. The controller 5 is connected to the hydraulic device 3.

[0029] The lower floating roller assembly 26 is spaced along the conveying direction of the conveyor belt 22; the lower floating roller assembly 26 includes a roller shaft 261, a bearing seat 262, a spring 263 and a movable rod 264. The two ends of the roller shaft 261 are installed with the bearing seat 262. The bearing seat 262 is installed in the adjustment groove 212 of the frame 21. The movable rod 264 is movably installed on the crossbeam of the frame 21, and the end of the movable rod 264 is fixed on the bearing seat 262. The spring 263 is distributed between the crossbeam of the frame 21 and the bearing seat 262 and is fitted on the movable rod 264. The roller shaft 261 floats axially along the movable rod 264 through the elastic support of the spring 263.

[0030] The hydraulic device 3 includes two sets of hydraulic cylinders 31 symmetrically arranged on the track conveyor mechanism 2. The cylinder body of the hydraulic cylinder 31 is fixed on the crossbeam inside the traction frame 1, and the piston rod of the hydraulic cylinder 31 is fixed on the frame 21.

[0031] During traction, the pressure signal detected by the lower pressure roller assembly 25 is the pressure transmitted from the pipe 4 to the conveyor belt 22 after contact with the pipe 4 and indirectly monitored by the pressure sensor 253 on the roller shaft 251. The pressure signal can indicate the position of the conveyor belt 22 and is fed back to the controller 5 to control the driving distance of the hydraulic cylinder 31 to clamp the pipe 4. The upper adjusting roller assembly 24 is used to tension the conveyor belt 22, and the lower floating roller assembly 26 is used to adapt to clamping the pipe 4, avoiding insufficient or excessive clamping force and slippage.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PE pipe horizontal conveying device comprising a tractor frame (1), the front and back of which are provided with coaxially distributed inlet (11) and outlet (12), characterized in that: The traction frame (1) is provided with several sets of track conveying mechanisms (2) and hydraulic devices (3). The track conveying mechanisms (2) are distributed horizontally. The several sets of track conveying mechanisms (2) are driven by the hydraulic devices (3) to clamp and convey the pipe (4) along the direction from the inlet (11) to the outlet (12). The track conveyor mechanism (2) includes a frame (21), a conveyor track (22), a drive device (23), an upper adjusting roller assembly (24), a lower pressure roller assembly (25), and a lower floating roller assembly (26). The conveyor track (22) is mounted on the roller shafts at both ends of the frame (21) and is driven to rotate by the drive device (23). The upper adjusting roller assembly (24) contacts the upper surface of the conveyor track (22). The lower pressure roller assembly (25) is distributed at both ends of the conveyor track (22) and contacts the lower surface of the conveyor track (22). The lower floating roller assembly (26) is distributed between the lower pressure roller assemblies (25) and contacts the lower surface of the conveyor track (22). The lower pressure roller assembly (25) includes a roller shaft (251), a bearing seat (252), and a pressure sensor (253). The two ends of the roller shaft (251) are installed with the bearing seat (252). The pressure sensor (253) is fixed on the top of the bearing seat (252). The bearing seat (252) and the pressure sensor (253) are installed in the mounting groove (211) of the frame (21). The detection surface of the pressure sensor (253) contacts the wall of the mounting groove (211), senses the contact pressure, and generates a pressure signal that is transmitted to the controller (5). The controller (5) is connected to the hydraulic device (3).

2. A PE pipe horizontal conveying apparatus according to claim 1, characterized in that: Several sets of the tracked conveyor mechanisms (2) are arranged in a ring array within the traction frame (1) along the axial direction from the inlet (11) to the outlet (12).

3. The PE pipe horizontal conveying apparatus according to claim 1, characterized in that: The upper adjustable idler roller assembly (24) is spaced along the conveying direction of the conveyor belt (22); The upper adjusting roller assembly (24) includes a second roller shaft (241), a second bearing seat (242), and an adjusting screw (243). The two ends of the second roller shaft (241) are installed with the second bearing seat (242). The second bearing seat (242) is installed in the adjusting groove (212) of the frame (21). The adjusting screw (243) is threaded on the frame (21), and the end of the adjusting screw (243) extends into the adjusting groove (212) and is rotatably connected to the second bearing seat (242). The adjusting screw (243) is distributed along the adjusting direction of the second bearing seat (242) in the adjusting groove (212).

4. The PE pipe horizontal conveying apparatus according to claim 1, characterized in that: The lower floating roller assembly (26) is spaced along the conveying direction of the conveyor belt (22); The floating roller assembly (26) includes a roller shaft three (261), a bearing seat three (262), a spring (263), and a movable rod (264). The two ends of the roller shaft three (261) are installed with the bearing seat three (262). The bearing seat three (262) is installed in the adjustment groove (212) of the frame (21). The movable rod (264) is movably installed on the crossbeam of the frame (21), and the end of the movable rod (264) is fixed on the bearing seat three (262). The spring (263) is distributed between the crossbeam of the frame (21) and the bearing seat three (262) and is fitted on the movable rod (264). The roller shaft three (261) floats axially along the movable rod (264) through the elastic support of the spring (263).

5. The PE pipe horizontal conveying apparatus according to claim 1, characterized in that: The end of the frame (21) is assembled with a linear guide rail (13) provided on the traction machine frame (1) via a slider (213), and the linear guide rail (13) is distributed along the driving direction of the hydraulic device (3).

6. A PE pipe horizontal conveying apparatus according to claim 1, characterized in that: The hydraulic device (3) includes two sets of hydraulic cylinders (31) symmetrically arranged on the track conveyor mechanism (2). The cylinder body of the hydraulic cylinder (31) is fixed on the cross frame inside the traction machine frame (1), and the piston rod of the hydraulic cylinder (31) is fixed on the frame (21).

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