Crawler-type pipe-conveying device

Abstract

The application relates to a caterpillar pipe conveying device, which comprises a horizontally arranged first conveying mechanism, a horizontally arranged second conveying mechanism above the first mechanism, a driving mechanism for driving the first conveying mechanism and the second conveying mechanism to operate, a conveying channel for arranging pipes is formed between the first conveying mechanism and the second conveying mechanism, the first conveying mechanism comprises a first caterpillar wheel and a plurality of first pressing plate assemblies, the first pressing plate assembly comprises a first mounting seat and a first pressing plate detachably mounted on the first mounting seat, the second conveying mechanism comprises a second caterpillar wheel and a plurality of second pressing plate assemblies corresponding to the plurality of first pressing plate assemblies one by one, the second pressing plate assembly comprises a second mounting seat and a second pressing plate detachably mounted on the second mounting seat. The application has the effect of reducing the shaking or deviation of the pipes in the conveying process.

Description

Technical Field

[0001] This application relates to the field of pipe conveying, and more particularly to a tracked pipe conveying device. Background Technology

[0002] Welded pipe forming process refers to the process of rolling flat plates into the desired tubular shape using a series of forming rollers, then welding their edges together, and finally producing the final steel pipe through processes such as sizing and finishing. In related technologies, after welding, the pipes are typically transported using roller conveyors or belt conveyors. This involves the rolling of multiple rollers to propel the pipe forward, or relying on the friction between the belt and the pipe for transport. Regarding these technologies, the inventors believe that the aforementioned conveying methods lack effective fixation and positioning of the pipes. During transport, the pipes are prone to swaying and shifting, resulting in poor transport stability and failing to meet the requirements of scenarios with high transport precision. Utility Model Content

[0003] To reduce the swaying or deviation of pipe fittings during transportation, this application provides a tracked pipe fitting transportation device.

[0004] The tracked pipe fitting conveying device provided in this application adopts the following technical solution: A tracked pipe fitting conveying device includes a horizontally arranged first conveying mechanism, a horizontally arranged second conveying mechanism above the first mechanism, and a drive mechanism for driving the first and second conveying mechanisms. A conveying channel for arranging pipe fittings is formed between the first and second conveying mechanisms. The first conveying mechanism includes a first track wheel and a plurality of first pressure plate assemblies uniformly arranged on the surface of the first track wheel along its length. Each first pressure plate assembly includes a first mounting seat arranged on the surface of the first track wheel and a first pressure plate detachably mounted on the first mounting seat. The second conveying mechanism includes a second track wheel and a plurality of second pressure plate assemblies mounted on the second track wheel and corresponding one-to-one with the plurality of first pressure plate assemblies. Each second pressure plate assembly includes a second mounting seat arranged on the surface of the second track wheel and a second pressure plate detachably mounted on the second mounting seat.

[0005] By adopting the above technical solution, in the welded pipe production process, the operator arranges the pipe fittings output by the welding machine at the input end of the conveying channel, that is, the pipe fittings are arranged in the middle of the first pressure plate of the first conveying mechanism, so that the lower end face of the pipe fitting abuts against the upper end face of a first pressure plate assembly and the upper end face of the pipe fitting abuts against the upper end face of the corresponding second pressure plate assembly. Then, the drive mechanism is started, so that the first conveying mechanism and the second conveying mechanism run in opposite directions at the same speed. Multiple first pressure plate assemblies and second pressure plate assemblies cooperate one by one with the operation of the first conveying mechanism and the second conveying mechanism to clamp the pipe fittings, thereby achieving stable conveying of the pipe fittings and effectively reducing the shaking or deviation of the pipe fittings during the conveying process.

[0006] Optionally, the first pressure plate includes a first abutting portion for the lower end face of the pipe fitting to abut against and two first snap-fit ​​portions connected to both ends of the first abutting portion, and the first mounting base has two first snap-fit ​​grooves for the two first snap-fit ​​portions to be arranged respectively.

[0007] By adopting the above technical solution, the first abutting part of the first pressure plate abuts against the lower end face of the pipe fitting. Since the surface of the first pressure plate is relatively rough, it generates a large friction force when in contact with the pipe fitting, thereby enabling the pipe fitting to be pulled to move along the conveying direction of the first conveying mechanism during the pipe fitting production process. The two first snap-fit ​​parts are respectively closely connected with the two first snap-fit ​​grooves of the first mounting seat, realizing the detachable installation of the first pressure plate and the first mounting seat, which facilitates the replacement of the first pressure plate after it is worn.

[0008] Optionally, the second pressure plate includes a second abutting portion for the lower end face of the pipe fitting to abut against, and two second snap-fit ​​portions connected to both ends of the second abutting portion. The second mounting base has two second snap-fit ​​grooves for the two second snap-fit ​​portions to be arranged respectively.

[0009] By adopting the above technical solution, the second abutting part of the second pressure plate abuts against the upper end face of the pipe fitting and cooperates with the first abutting part of the first pressure plate to limit the pipe fitting. Since the surface of the second pressure plate is relatively rough, it generates a large friction force when in contact with the pipe fitting, thereby enabling the pipe fitting to be pulled to move along the conveying direction of the second conveying mechanism during the pipe fitting production process. The two second snap-fit ​​parts are respectively closely connected with the two second snap-fit ​​grooves of the second mounting seat, realizing the detachable installation of the second pressure plate and the second mounting seat, which facilitates the replacement of the second pressure plate after it is worn.

[0010] Optionally, the first track wheel includes a first frame, a first drive shaft arranged at one end of the first frame, a second drive shaft arranged at the other end of the first frame and parallel to the first drive shaft, and a first chain arranged on the first drive shaft and the second drive shaft; the first frame is provided with a first adjustment assembly for adjusting the horizontal position of the second drive shaft; the first adjustment assembly includes a first lead screw arranged on the first frame and extending parallel to the conveying direction of the pipe, and a first nut installed at the end of the second drive shaft and threadedly engaged with the first lead screw.

[0011] By adopting the above technical solution, the specific structure of the first track wheel is disclosed. The drive mechanism drives the first transmission shaft to rotate, thereby driving the operation of the first track and the second transmission shaft. The tension of the first chain is adjusted by the first adjustment component to ensure the stable operation of the first conveying mechanism, thereby ensuring the stability of pipe conveying.

[0012] Optionally, the second track wheel includes a second frame arranged above the first frame, a third drive shaft arranged at one end of the second frame, a fourth drive shaft arranged at the other end of the second frame and parallel to the third drive shaft, and a second chain arranged on the third drive shaft and the fourth drive shaft; the second frame is provided with a second adjustment assembly for adjusting the horizontal position of the fourth drive shaft; the second adjustment assembly includes a second lead screw arranged on the second frame and extending parallel to the conveying direction of the pipe, and a second nut installed at the end of the fourth drive shaft and threadedly engaged with the second lead screw.

[0013] By adopting the above technical solution, the specific structure of the second track wheel is disclosed. The tension of the second chain is adjusted by the second adjustment component to ensure the stable operation of the second conveying mechanism, thereby ensuring the stability of pipe conveying.

[0014] Optionally, the drive mechanism includes a drive motor for driving the first drive shaft to rotate, a first transmission component mounted on the first drive shaft, a second transmission component mounted on the third drive shaft, and a transmission box connecting the first transmission component and the second transmission component.

[0015] By adopting the above technical solution, the drive motor drives the first transmission shaft to rotate, thereby driving the first track and the second transmission shaft to rotate. The first transmission component rotates coaxially with the first transmission shaft and, through the transmission box, causes the second transmission component to drive the third transmission shaft to rotate coaxially in the opposite direction. This realizes the reverse operation of the drive motor driving the first track wheel and the second track wheel, thereby realizing the conveying of pipes and ensuring the stability and reliability of power transmission.

[0016] Optionally, a lifting adjustment structure for adjusting the spacing of the conveying channels is provided between the first conveying mechanism and the second conveying mechanism. The lifting adjustment structure includes a vertically arranged trapezoidal lead screw, a third nut arranged on the side of the first conveying mechanism and threadedly engaged with the trapezoidal lead screw, a first handwheel for driving the third nut to rotate, a fourth nut arranged on the side of the second conveying mechanism and threadedly engaged with the trapezoidal lead screw, and a second handwheel for driving the fourth nut to rotate.

[0017] By adopting the above technical solution, the operator can rotate the first handwheel and the second handwheel to move the first nut and the second nut on the trapezoidal screw, thereby flexibly adjusting the distance between the conveying channels of the first conveying mechanism and the second conveying mechanism to meet the conveying needs of pipe fittings of different sizes.

[0018] Optionally, the lifting and adjusting structure further includes a guide column arranged parallel to the trapezoidal lead screw, the first conveying mechanism having a first column sleeve that cooperates with the guide column, and the second conveying mechanism having a second column sleeve that cooperates with the guide column.

[0019] By adopting the above technical solution and setting a guide column parallel to the trapezoidal screw, the first conveying mechanism and the second conveying mechanism cooperate with the guide column through the first column sleeve and the second column sleeve respectively, which can provide guidance for the lifting and lowering adjustment of the first conveying mechanism and the second conveying mechanism, and improve the stability and accuracy of the first conveying mechanism and the second conveying mechanism when adjusting the height.

[0020] Optionally, the number of guide columns is two and they are symmetrically arranged on both sides of the trapezoidal lead screw. The first conveying mechanism has two first column sleeves that cooperate with the two guide columns one by one, and the second conveying mechanism has two second column sleeves that cooperate with the two guide columns one by one.

[0021] By adopting the above technical solution, two guide columns symmetrically arranged on both sides of the trapezoidal lead screw are set up. The first conveying mechanism and the second conveying mechanism cooperate with the guide columns through two first column sleeves and two second column sleeves, which helps to further improve the stability of the first conveying mechanism and the second conveying mechanism during lifting and adjusting.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. A tracked pipe fitting conveying device, comprising a first conveying mechanism, a first driving mechanism, a second conveying mechanism, and a second driving mechanism; in the welded pipe production process, the operator arranges the pipe fitting output from the welding machine at the input end of the conveying channel, that is, the pipe fitting is arranged in the middle of the first pressure plate of the first conveying mechanism, so that the lower end face of the pipe fitting abuts against the upper end face of a first pressure plate assembly and the upper end face of the pipe fitting abuts against the upper end face of the corresponding second pressure plate assembly. Then, the driving mechanism is started, so that the first conveying mechanism and the second conveying mechanism run in opposite directions at the same speed. Multiple first pressure plate assemblies and second pressure plate assemblies cooperate one by one with the operation of the first conveying mechanism and the second conveying mechanism to clamp the pipe fitting, thereby achieving stable conveying of the pipe fitting and effectively reducing the shaking or deviation of the pipe fitting during the conveying process; 2. The first abutting part of the first pressure plate abuts against the lower end face of the pipe fitting. Since the surface of the first pressure plate is relatively rough, it generates a large friction force when in contact with the pipe fitting, thereby enabling the pipe fitting to be pulled along the conveying direction of the first conveying mechanism during the pipe fitting production process; the two first snap-fit ​​parts are respectively closely fitted with the two first snap-fit ​​grooves of the first mounting seat, realizing the detachable installation of the first pressure plate and the first mounting seat, which is convenient for replacing the first pressure plate after it is worn. 3. The second abutting part of the second pressure plate abuts against the upper end face of the pipe fitting and cooperates with the first abutting part of the first pressure plate to limit the pipe fitting. Since the surface of the second pressure plate is relatively rough, it generates a large friction force when in contact with the pipe fitting, thereby pulling the pipe fitting to move along the conveying direction of the second conveying mechanism during the pipe fitting production process. The two second snap-fit ​​parts are respectively closely connected with the two second snap-fit ​​grooves of the second mounting seat, realizing the detachable installation of the second pressure plate and the second mounting seat, which is convenient for replacing the second pressure plate after it is worn. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the tracked pipe conveying device in the embodiments of this application.

[0024] Figure 2 This is a cross-sectional schematic diagram of the first and second conveying mechanisms working together to clamp the pipe fitting in an embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the structure of the first adjustment component and the second adjustment component in the embodiments of this application.

[0026] Figure 4 This is a schematic diagram of the structure of the first pressure plate assembly in the embodiments of this application.

[0027] Figure 5 This is a schematic diagram of the structure of the second pressure plate assembly in the embodiments of this application.

[0028] Figure 6This is a schematic diagram showing the cooperation between the drive mechanism and the first track wheel and the second track wheel in an embodiment of this application.

[0029] Figure 7 This is a schematic diagram of the lifting and adjusting structure in the embodiments of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. First conveying mechanism; 11. First track wheel; 111. First frame; 1111. First extension plate; 1112. Third nut; 1113. First handwheel; 1114. First limiting part; 1115. First sleeve; 112. First drive shaft; 113. Second drive shaft; 114. First chain; 115. First adjusting assembly; 1151. First lead screw; 1152. First nut; 12. First pressure plate assembly; 121. First mounting base; 1211. First locking groove; 122. First pressure plate; 1221. First abutment part; 1222. First locking part; 2. Second conveying mechanism; 21. Second track wheel; 211. Second frame; 2111, Second extension plate; 2112, Fourth nut; 2113, Second handwheel; 2114, Second limiting part; 2115, Second column sleeve; 212, Third drive shaft; 213, Fourth drive shaft; 214, Second chain; 215, Second adjusting assembly; 2151, Second lead screw; 2152, Second nut; 22, Second pressure plate assembly; 221, Second mounting base; 2211, Second snap-fit ​​groove; 222, Second pressure plate; 2221, Second abutment part; 2222, Second snap-fit ​​part; 3, Drive mechanism; 31, Drive motor; 32, First transmission component; 33, Second transmission component; 34, Transmission box; 4, Conveying channel; 5, Trapezoidal lead screw; 6, Guide column. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0032] This application discloses a tracked pipe fitting conveying device. (Refer to...) Figure 1 The tracked pipe conveying device includes a horizontally arranged first conveying mechanism 1, a horizontally arranged second conveying mechanism 2 above the first conveying mechanism 1, and a drive mechanism 3 for driving the first conveying mechanism 1 and the second conveying mechanism 2. A conveying channel 4 for arranging pipes is formed between the first conveying mechanism 1 and the second conveying mechanism 2.

[0033] Reference Figure 1 and Figure 2The first conveying mechanism 1 includes a first track wheel 11 and a plurality of first pressure plate assemblies 12 mounted on the first track wheel 11. The first track wheel 11 includes a first frame 111, a first drive shaft 112 arranged at one end of the first frame 111, a second drive shaft 113 arranged at the other end of the first frame 111 and parallel to the first drive shaft 112, and a first chain 114 arranging the first drive shaft 112 and the second drive shaft 113.

[0034] Reference Figure 1 and Figure 3 The first frame 111 has a vertically arranged first extension plate 1111 on the side near the second drive shaft 113. A first adjustment assembly 115 for adjusting the horizontal position of the second drive shaft 113 is provided on the first extension plate 1111. The first adjustment assembly 115 includes a first lead screw 1151 arranged on the first extension plate 1111 and extending parallel to the conveying direction of the pipe, and a first nut 1152 installed at the end of the second drive shaft 113 and threadedly engaged with the first lead screw 1151. In this embodiment, there are two first adjustment assemblies 115, symmetrically arranged at both ends of the second drive shaft 113.

[0035] Reference Figure 3 and Figure 4 The first pressure plate assembly 12 includes a first mounting base 121 disposed on the surface of the first track wheel 11 and a first pressure plate 122 detachably mounted on the first mounting base 121. The first pressure plate 122 includes a first abutting portion 1221 for the lower end face of the pipe fitting to abut against, and two first snap-fit ​​portions 1222 connected to both ends of the first abutting portion 1221. The first mounting base 121 has two first snap-fit ​​grooves 1211 for the two first snap-fit ​​portions 1222 to be respectively arranged. In this embodiment, the first mounting base 121 is welded to the surface of the first track wheel 11.

[0036] Reference Figure 1 and Figure 2 The second conveying mechanism 2 includes a second track wheel 21 and a plurality of second pressure plate assemblies 22 mounted on the second track wheel 21 and corresponding one-to-one with a plurality of first pressure plate assemblies 12. The second track wheel 21 includes a second frame 211, a third drive shaft 212 arranged at one end of the second frame 211 and parallel to the first drive shaft 112, a fourth drive shaft 213 arranged at the other end of the second frame 211 and parallel to the third drive shaft 212, and a second chain 214 arranging the third drive shaft 212 and the fourth drive shaft 213.

[0037] Reference Figure 1 and Figure 3The second frame 211 has a vertically arranged second extension plate 2111 on the side near the fourth drive shaft 213. A second adjustment assembly 215 for adjusting the horizontal position of the fourth drive shaft 213 is provided on the second extension plate 2111. The second adjustment assembly 215 includes a second lead screw 2151 arranged on the second extension plate 2111 and extending parallel to the conveying direction of the pipe, and a second nut 2152 installed at the end of the fourth drive shaft 213 and threadedly engaged with the second lead screw 2151. In this embodiment, there are two second adjustment assemblies 215, symmetrically arranged at both ends of the fourth drive shaft 213.

[0038] Reference Figure 3 and Figure 5 The second pressure plate assembly 22 includes a second mounting base 221 disposed on the surface of the second track wheel 21 and a second pressure plate 222 detachably mounted on the second mounting base 221. The second pressure plate 222 includes a second abutment portion 2221 for abutting the lower end face of the pipe fitting and two second snap-fit ​​portions 2222 connected to both ends of the second abutment portion 2221. The second mounting base 221 has two second snap-fit ​​grooves 2211 for respectively accommodating the two second snap-fit ​​portions 2222. In this embodiment, the second mounting base 221 is welded to the surface of the second track wheel 21.

[0039] Reference Figure 6 The drive mechanism 3 includes a drive motor 31 that drives the first drive shaft 112 to rotate, a first transmission component 32 mounted on the end of the first drive shaft 112, a second transmission component 33 mounted on the end of the third drive shaft 212, and a transmission box 34 connecting the first transmission component 32 and the second transmission component 33. In this embodiment, both the first transmission component 32 and the second transmission component 33 are universal joints.

[0040] Reference Figure 1 and Figure 7 A lifting adjustment structure for adjusting the spacing of the conveying channel 4 is provided between the first frame 111 and the second frame 211. The lifting adjustment structure includes a vertically arranged trapezoidal lead screw 5, a third nut 1112 arranged on the side of the first frame 111 and threadedly engaged with the trapezoidal lead screw 5, a first handwheel 1113 driving the third nut 1112 to rotate, a fourth nut 2112 arranged on the side of the second frame 211 and threadedly engaged with the trapezoidal lead screw 5, and a second handwheel 2113 driving the fourth nut 2112 to rotate. The first frame 111 has a first limiting part 1114 for accommodating the third nut 1112 and the first handwheel 1113. The second frame 211 has a second limiting part 2114 for accommodating the fourth nut 2112 and the second handwheel 2113.

[0041] Reference Figure 7The trapezoidal lead screw 5 has guide columns 6 arranged parallel to it on its side. The first frame 111 has a first sleeve 1115 that mates with the guide columns 6, and the second frame 211 has a second sleeve 2115 that mates with the guide columns 6. In this embodiment, there are two guide columns 6, symmetrically arranged on both sides of the trapezoidal lead screw 5. The first conveying mechanism 1 has two first sleeves 1115 that mate with each of the two guide columns 6, and the second conveying mechanism 2 has two second sleeves 2115 that mate with each of the two guide columns 6.

[0042] The implementation principle of a tracked pipe conveying device according to an embodiment of this application is as follows: In the welded pipe production process, the operator arranges the pipe output from the welding machine at the input end of the conveying channel 4, that is, the pipe is arranged in the middle of the first pressure plate 122 of the first conveying mechanism 1, so that the lower end face of the pipe abuts against the upper end face of a first pressure plate assembly 12 and the upper end face of the pipe abuts against the upper end face of the corresponding second pressure plate assembly 22. Then, the drive mechanism 3 is started, so that the first conveying mechanism 1 and the second conveying mechanism 2 run in opposite directions at the same speed. Multiple first pressure plate assemblies 12 and second pressure plate assemblies 22 cooperate one by one with the operation of the first conveying mechanism 1 and the second conveying mechanism 2 to clamp the pipe, thereby realizing the stable conveying of the pipe and reducing the shaking or deviation of the pipe during the conveying process.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tracked pipe fitting conveying device, characterized in that, The system includes a horizontally arranged first conveying mechanism (1), a horizontally arranged second conveying mechanism (2) above the first conveying mechanism, and a drive mechanism (3) for driving the first conveying mechanism (1) and the second conveying mechanism (2); a conveying channel (4) for arranging pipe fittings is formed between the first conveying mechanism (1) and the second conveying mechanism (2); the first conveying mechanism (1) includes a first track wheel (11) and a plurality of first pressure plate assemblies (12) evenly arranged on the surface of the first track wheel (11) along the length direction of the first track wheel (11), the first pressure plate assemblies (12) 2) Includes a first mounting seat (121) arranged on the surface of the first track wheel (11) and a first pressure plate (122) detachably mounted on the first mounting seat (121); the second conveying mechanism (2) includes a second track wheel (21) and a plurality of second pressure plate assemblies (22) mounted on the second track wheel (21) and corresponding one-to-one with a plurality of first pressure plate assemblies (12), the second pressure plate assembly (22) includes a second mounting seat (221) arranged on the surface of the second track wheel (21) and a second pressure plate (222) detachably mounted on the second mounting seat (221).

2. The tracked pipe conveying device according to claim 1, characterized in that, The first pressure plate (122) includes a first abutting part (1221) for the lower end face of the pipe fitting to abut against, and two first snap-fit ​​parts (1222) connected to both ends of the first abutting part (1221). The first mounting base (121) has two first snap-fit ​​grooves (1211) for the two first snap-fit ​​parts (1222) to be arranged respectively.

3. The tracked pipe conveying device according to claim 1, characterized in that, The second pressure plate (222) includes a second abutment portion (2221) for the lower end face of the pipe fitting to abut against, and two second snap-fit ​​portions (2222) connected to both ends of the second abutment portion (2221). The second mounting base (221) has two second snap-fit ​​grooves (2211) for the two second snap-fit ​​portions (2222) to be arranged respectively.

4. The tracked pipe conveying device according to claim 1, characterized in that, The first track wheel (11) includes a first frame (111), a first drive shaft (112) arranged at one end of the first frame (111), a second drive shaft (113) arranged at the other end of the first frame (111) and parallel to the first drive shaft (112), and a first chain (114) arranged on the first drive shaft (112) and the second drive shaft (113); the first frame (111) is provided with a first adjustment assembly (115) for adjusting the horizontal position of the second drive shaft (113); the first adjustment assembly (115) includes a first lead screw (1151) arranged on the first frame (111) and extending along the conveying direction parallel to the pipe, and a first nut (1152) installed at the end of the second drive shaft (113) and threadedly engaged with the first lead screw (1151).

5. A tracked pipe conveying device according to claim 4, characterized in that, The second track wheel (21) includes a second frame (211) arranged above the first frame (111), a third drive shaft (212) arranged at one end of the second frame (211), a fourth drive shaft (213) arranged at the other end of the second frame (211) and parallel to the third drive shaft (212), and a second chain (214) arranged on the third drive shaft (212) and the fourth drive shaft (213); the second frame (211) is provided with a second adjustment assembly (215) for adjusting the horizontal position of the fourth drive shaft (213); the second adjustment assembly (215) includes a second lead screw (2151) arranged on the second frame (211) and extending parallel to the conveying direction of the pipe, and a second nut (2152) installed at the end of the fourth drive shaft (213) and threadedly engaged with the second lead screw (2151).

6. A tracked pipe conveying device according to claim 5, characterized in that, The drive mechanism (3) includes a drive motor (31) that drives the first drive shaft (112) to rotate, a first transmission component (32) mounted on the first drive shaft (112), a second transmission component (33) mounted on the third drive shaft (212), and a transmission box (34) connecting the first transmission component (32) and the second transmission component (33).

7. A tracked pipe conveying device according to claim 1, characterized in that, A lifting adjustment structure for adjusting the spacing of the conveying channel (4) is provided between the first conveying mechanism (1) and the second conveying mechanism (2). The lifting adjustment structure includes a vertically arranged trapezoidal screw (5), a third nut (1112) arranged on the side of the first conveying mechanism (1) and threadedly engaged with the trapezoidal screw (5), a first handwheel (1113) for driving the third nut (1112) to rotate, a fourth nut (2112) arranged on the side of the second conveying mechanism (2) and threadedly engaged with the trapezoidal screw (5), and a second handwheel (2113) for driving the fourth nut (2112) to rotate.

8. A tracked pipe conveying device according to claim 7, characterized in that, The lifting and adjusting structure also includes a guide column (6) arranged parallel to the trapezoidal lead screw (5), the first conveying mechanism (1) has a first column sleeve (1115) that cooperates with the guide column (6), and the second conveying mechanism (2) has a second column sleeve (2115) that cooperates with the guide column (6).

9. A tracked pipe conveying device according to claim 8, characterized in that, The number of guide columns (6) is two and they are symmetrically arranged on both sides of the trapezoidal lead screw (5). The first conveying mechanism (1) has two first column sleeves (1115) that cooperate with the two guide columns (6) one by one. The second conveying mechanism (2) has two second column sleeves (2115) that cooperate with the two guide columns (6) one by one.

Images