Hydraulic jacking trolley mechanism for welding

Abstract

The invention belongs to the technical field of welding auxiliary tools, and discloses a hydraulic jacking trolley mechanism for welding, which comprises a transport trolley, the transport trolley comprises a frame body, a support frame and a guide rail, the support frame is mounted on the frame body, and the hydraulic jacking trolley mechanism further comprises a jacking mechanism arranged on the frame body; the elastic supporting cylinder is arranged on the supporting frame and used for supporting the jacking mechanism; the clamping assemblies are symmetrically mounted at the bottom of the jacking mechanism; according to the scheme, the first hydraulic rod is operated to extend, under the action of the self weight of the first hydraulic rod and the tension of the tension spring, the first hydraulic rod firstly drives the supporting seat to move downwards, is supported on the guide rail and replaces a roller on the frame body, and then the output end of the first hydraulic rod pushes the gasket to move upwards and enables the tension spring to be stretched; and meanwhile, the gasket groove can jack up the supporting frame and the adjusting assembly after being in contact with the dome, so that the problem that the trolley roller is accidentally loosened in the locking and jacking process is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding auxiliary tooling, in particular to a hydraulic lifting trolley mechanism for welding. Background Art

[0002] Penstock is a pipe structure specially designed to withstand internal or external pressure, commonly found in water conservancy projects, energy transmission and industrial fields.

[0003] The existing solution is to use a hydraulic lifting trolley with an electric trolley + roller structure to transport the workpiece. A hydraulic locking device is installed at the bottom of the trolley to lock the roller and fix it on the track. The hydraulic system applies uniform pressure to lift the workpiece and align it with the front section of the steel pipe. Due to the complex on-site construction environment, factors such as ground vibration and slight deformation of the track may cause the locking device to loosen accidentally. Once the roller is unlocked, the trolley may be displaced during the hydraulic lifting process, which will seriously affect the accuracy of the steel pipe docking and may even cause safety accidents. Therefore, in order to solve the above problems, a hydraulic lifting trolley mechanism for welding is proposed. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a hydraulic lifting trolley mechanism for welding, which solves the problem that the trolley rollers may accidentally loosen during the locking and lifting process.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydraulic lifting trolley mechanism for welding, comprising a transport trolley, the transport trolley comprising a frame body, a support frame and a guide rail, the support frame being mounted on the frame body, and further comprising: a lifting mechanism, which is arranged on the frame body; an elastic support cylinder, which is arranged on the support frame for supporting the lifting mechanism; a clamping assembly, which is symmetrically mounted at the bottom of the lifting mechanism; a transmission assembly, which is mirror-imaged at the bottom of the elastic support cylinder and can move upward with the elastic support cylinder to drive the clamping assembly to clamp the guide rail;

[0006] An adjustment assembly, which is installed on the top of the support frame and is used to lift the pressure steel pipe;

[0007] The lifting mechanism comprises a hydraulic rod 1 movably mounted on the frame body and penetrating the frame body, a support seat capable of supporting on the guide rail is fixedly connected to the bottom of the hydraulic rod 1, a gasket is arranged on the top of the hydraulic rod 1, and a tension spring mounted on the outside of the hydraulic rod 1 is fixedly connected between the bottom of the gasket and the upper surface of the frame body;

[0008] When the hydraulic rod is extended, the support seat can be supported on the guide rail and then the support frame can be lifted upward.

[0009] Preferably, a gasket groove is provided on the top of the gasket, and a dome is provided on the support frame, which is located directly above the gasket groove and can cooperate with the gasket groove.

[0010] Preferably, a limiting cylinder sleeved on the outside of the hydraulic rod is fixedly connected to the support frame, and the elastic supporting cylinder is sleeved in the limiting cylinder. The elastic supporting cylinder is also sleeved on the outside of the hydraulic rod to support the gasket so that it has an upward trend.

[0011] Preferably, in the initial state, a gap is left between the top of the gasket and the support frame;

[0012] The gasket can move upward and break away from the limiting cylinder, and at this time, the top of the elastic supporting cylinder is blocked by the limiting cylinder and cannot move upward.

[0013] Preferably, a positioning ring located outside the hydraulic rod is further provided at the top of the frame body, and a positioning hole capable of being sleeved on the outside of the positioning ring is provided at the bottom of the support frame.

[0014] Preferably, the transmission assembly includes a spring telescopic rod fixedly connected to the bottom of the elastic support tube, the bottom of the spring telescopic rod extends to the bottom of the frame body and is fixedly connected to a connecting frame, the bottom of the connecting frame abuts against the top of the support seat, and the transmission assembly also includes a column fixedly connected to both ends of the connecting frame, and a protruding column is fixedly connected to the column.

[0015] Preferably, the clamping assembly comprises a spring combination cam symmetrically arranged on the same side of the bottom of the support seat and in a compressed state, an annular tube is fixedly connected to the top of the spring combination cam, and a guide groove is opened inside the annular tube;

[0016] The column is movably sleeved inside the annular cylinder, and the column is initially located at the bottom of the guide groove and can slide in the guide groove;

[0017] When the support seat moves downward, the spring telescopic rod is extended by its own elastic force and can keep the connecting frame in contact with the support seat. After the support seat is stuck on the guide rail, the spring telescopic rod is fully extended, and the elastic support tube can drive the transmission assembly to move upward a distance less than the vertical distance at both ends of the guide groove.

[0018] Preferably, the adjustment assembly comprises a support bracket movably mounted on the top of the support frame, a ball bearing is arranged at the bottom of the support bracket, the support bracket contacts the top of the hydraulic rod 1 through the ball bearing, and a hydraulic rod 2 for pushing the support bracket to move horizontally and a hydraulic rod 3 for pushing the support bracket to move longitudinally are also arranged between the support bracket and the support frame;

[0019] The output ends of the hydraulic rod 2 and the hydraulic rod 3 are both provided with round balls, and the other ends of the two are fixedly mounted on the support frame.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The above scheme extends the hydraulic rod 1 and under the action of its own weight and the tension of the tension spring, the hydraulic rod 1 will first drive the support seat downward and support it on the guide rail and replace the roller on the frame body. Then the output end of the hydraulic rod 1 will push the gasket upward and stretch the tension spring. At the same time, the gasket groove will contact the dome and lift up the support frame and the adjustment component, thereby solving the problem that the trolley roller will accidentally loosen during the locking and lifting process.

[0022] In the above scheme, when the hydraulic rods are operated to lift the support frame, the operator can also adjust the height of the support frame by pushing each hydraulic rod to make the gasket groove in the dome, so as to properly adjust the angle of the pressure steel pipe on the adjustment assembly;

[0023] The above scheme drives the spring telescopic rod to extend when the support seat moves downward. When the support seat is supported on the guide rail, the elastic support tube will be reset by its own elastic force due to the upward movement of the gasket and drive the transmission assembly to move upward as a whole, thereby causing the convex column to move upward inside the guide groove. At this time, the spring combination cam will rotate under the action of its own elastic force and abut against the side of the guide rail, further ensuring the stability of the device on the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the top planar structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the side plan structure of the present invention;

[0027] Figure 4 It is a partial cross-sectional structural schematic diagram of the side surface of the frame body of the present invention;

[0028] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0029] Figure 6 It is a partial cross-sectional structural schematic diagram of the elastic support tube of the present invention;

[0030] Figure 7 The figure is a disassembled diagram of the transmission assembly of the present invention;

[0031] Figure 8 It is a top cross-sectional view of the mainspring assembly cam of the present invention;

[0032] Fig. 9 It is a schematic diagram of the disassembled structure of the transport platform of the present invention;

[0033] Fig.10 It is a bottom view structural schematic diagram of the adjustment assembly of the present invention.

[0034] In the figure: 1. transport trolley; 11. frame body; 111. positioning ring; 12. support frame; 121. dome; 122. limiting cylinder; 123. positioning hole; 13. guide rail; 2. lifting mechanism; 21. hydraulic rod one; 22. gasket; 221. gasket groove; 23. support seat; 24. tension spring; 3. elastic support cylinder; 4. transmission assembly; 41. spring telescopic rod; 42. connecting frame; 43. column; 44. convex column; 5. clamping assembly; 51. spring combination cam; 52. annular cylinder; 53. guide groove; 6. adjustment assembly; 61. support bracket; 611. ball bearing; 62. hydraulic rod two; 63. hydraulic rod three. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figures 1 to 10 As shown, the present invention provides a hydraulic jacking trolley mechanism for welding, including a transport trolley 1, the transport trolley 1 includes a frame body 11, a support frame 12 and a guide rail 13, the support frame 12 is installed on the frame body 11, and also includes: a jacking mechanism 2, which is arranged on the frame body 11; an elastic support cylinder 3, which is arranged on the support frame 12 for supporting the jacking mechanism 2; a clamping assembly 5, which is symmetrically installed at the bottom of the jacking mechanism 2; a transmission assembly 4, which is mirror-imaged and arranged at the bottom of the elastic support cylinder 3 and can move upward with the elastic support cylinder 3 to drive the clamping assembly 5 to clamp the guide rail 13; an adjustment assembly 6, which is installed on the top of the support frame 12 for lifting the pressure steel pipe;

[0037] The lifting mechanism 2 includes a hydraulic rod 21 movably mounted on the frame body 11 and penetrating the frame body 11, a support seat 23 capable of supporting on the guide rail 13 is fixedly connected to the bottom of the hydraulic rod 21, a gasket 22 is arranged on the top of the hydraulic rod 21, and a tension spring 24 mounted on the outside of the hydraulic rod 21 is fixedly connected between the bottom of the gasket 22 and the upper surface of the frame body 11;

[0038] The hydraulic rod 1 21 is extended to support the support seat 23 on the guide rail 13 and then lift the support frame 12 upward;

[0039] A gasket groove 221 is formed on the top of the gasket 22, and a dome 121 is provided on the support frame 12, which is located directly above the gasket groove 221 and can cooperate with the gasket groove 221;

[0040] By adopting the above scheme, by running the hydraulic rod 21 to extend and under the action of the weight of the hydraulic rod 21 and the tension of the tension spring 24, the hydraulic rod 21 will first drive the support seat 23 downward and support it on the guide rail 13 and replace the roller on the frame body 11, and then the output end of the hydraulic rod 21 will push the gasket 22 upward and stretch the tension spring 24, and at the same time, the gasket groove 221 will also contact the dome 121 to lift the support frame 12 and the adjustment component 6, thereby solving the problem that the trolley roller will accidentally loosen during the locking and lifting process;

[0041] It is worth noting that, since the hydraulic rod 21 is sleeved on the frame body 11, when the hydraulic rod 21 is extended and the bottom of the support seat 23 is stuck on the guide rail 13, the extension of the hydraulic rod 21 supports the support frame 12, the adjustment component 6 and the pressure steel pipe above, while the frame body 11 is still supported by the rollers at the bottom, thereby reducing the lifting pressure of several groups of hydraulic rods 21.

[0042] like Figure 1-Figure 7 and Figure 9-10 As shown, the support frame 12 is fixedly connected with a limit cylinder 122 sleeved on the outside of the hydraulic rod 1 21, and the elastic support cylinder 3 is sleeved in the limit cylinder 122. The elastic support cylinder 3 is also sleeved on the outside of the hydraulic rod 1 21 to support the gasket 22 so that it has an upward trend;

[0043] In the initial state, there is a gap between the top of the gasket 22 and the support frame 12; the gasket 22 can move upward and break away from the limiting cylinder 122, and at this time, the top of the elastic support cylinder 3 is blocked by the limiting cylinder 122 and cannot move upward;

[0044] The top of the frame body 11 is also provided with a positioning ring 111 located outside the hydraulic rod 21, and the bottom of the support frame 12 is provided with a positioning hole 123 that can be sleeved on the outside of the positioning ring 111;

[0045] By adopting the above scheme, when the hydraulic rod 21 is running to lift the support frame 12, the operator can also adjust the height of each hydraulic rod 21 to push the support frame 12 up. At this time, the dome 121 will slide in the gasket groove 221 to adapt to the inclination of the support frame 12, so as to avoid the situation that the support frame 12 is twisted and deformed due to the different heights of each hydraulic rod 21, and at the same time, the angle of the support frame 12 and the pressure steel pipe on the adjustment component 6 can be appropriately adjusted;

[0046] It is worth noting that when the support frame 12 is reset after adjusting the angle, the downward movement of the support frame 12 will drive the positioning holes 123 downward to snap into the outside of the positioning ring 111, so that the device support frame 12 can be accurately reset.

[0047] like Figure 1 and Figure 4-Figure 8As shown, the transmission assembly 4 includes a spring telescopic rod 41 fixedly connected to the bottom of the elastic support tube 3, the bottom of the spring telescopic rod 41 extends to the bottom of the frame body 11 and is fixedly connected to a connecting frame 42, the bottom of the connecting frame 42 abuts against the top of the support seat 23, and the transmission assembly 4 also includes a column 43 fixedly connected to both ends of the connecting frame 42, and a convex column 44 is fixedly connected to the column 43;

[0048] The clamping assembly 5 includes a spring assembly cam 51 symmetrically arranged on the same side of the bottom of the support seat 23 and in a compressed state, an annular tube 52 is fixedly connected to the top of the spring assembly cam 51, and a guide groove 53 is opened inside the annular tube 52;

[0049] The column 43 is movably sleeved inside the annular cylinder 52, and the column 43 is initially located at the bottom of the guide groove 53 and can slide in the guide groove 53;

[0050] When the support seat 23 moves downward, the spring telescopic rod 41 is stretched by its own elastic force and can keep the connecting frame 42 in contact with the support seat 23. After the support seat 23 is stuck on the guide rail 13, the spring telescopic rod 41 is fully stretched, and the elastic support tube 3 can drive the transmission assembly 4 to move upward by a distance less than the vertical distance between the two ends of the guide groove 53.

[0051] By adopting the above scheme, the spring telescopic rod 41 is extended when the support seat 23 moves downward. When the support seat 23 is supported on the guide rail 13, the elastic support tube 3 is reset by its own elastic force due to the upward movement of the gasket 22 and drives the transmission assembly 4 to move upward as a whole, thereby causing the protruding column 44 to move upward inside the guide groove 53. At this time, the spring combination cam 51 will rotate under the action of its own elastic force and abut against the side of the guide rail 13, further ensuring the stability of the device on the guide rail 13.

[0052] like Figure 1-Figure 4 , Fig. 9 and Fig.10 As shown, the adjustment assembly 6 includes a support bracket 61 movably mounted on the top of the support frame 12, a ball member 611 is provided at the bottom of the support bracket 61, the support bracket 61 contacts the top of the hydraulic rod 1 21 through the ball member 611, and a hydraulic rod 2 62 for pushing the support bracket 61 to move horizontally and a hydraulic rod 3 63 for pushing the support bracket 61 to move longitudinally are also provided between the support bracket 61 and the support frame 12;

[0053] The output ends of the hydraulic rod 2 62 and the hydraulic rod 3 63 are both provided with round balls, and the other ends of both are fixedly mounted on the support frame 12;

[0054] By adopting the above scheme, the output ends of hydraulic rod 2 62 and hydraulic rod 3 63 are both round balls, which can reduce the friction between the output ends of hydraulic rod 2 62 and hydraulic rod 3 63 and the support bracket 61. At the same time, when hydraulic rod 2 62 and hydraulic rod 3 63 stop running, both of them can also play a good positioning effect on support bracket 61, ensuring the stability of the device during installation.

[0055] The working principle and use process of the present invention:

[0056] When the hydraulic rod 21 is running and extended, under the action of its own weight and the tension of the tension spring 24, the hydraulic rod 21 will first drive the support seat 23 downward and support it on the guide rail 13 and replace the roller on the frame body 11. Then, the output end of the hydraulic rod 21 will push the gasket 22 upward and stretch the tension spring 24. At the same time, the gasket groove 221 will also contact the dome 121 to lift the support frame 12 and the adjustment component 6.

[0057] When the hydraulic rod 121 is operated to lift the support frame 12, the operator can also adjust the height of each hydraulic rod 121 to push the support frame 12 up, so that the gasket groove 221 and the dome 121 slide relative to each other, thereby appropriately adjusting the angle of the pressure steel pipe on the adjustment assembly 6;

[0058] At the same time, when the support seat 23 moves downward, the spring telescopic rod 41 will also extend. When the support seat 23 is supported on the guide rail 13, due to the upward movement of the gasket 22, the elastic support tube 3 will be reset by its own elastic force and drive the transmission assembly 4 to move upward as a whole, thereby causing the protruding column 44 to move upward inside the guide groove 53. At this time, under the action of the elastic force of the spring combination cam 51 itself, it will rotate and abut against the side of the guide rail 13, further ensuring the stability of the device on the guide rail 13.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic lifting trolley mechanism for welding, comprising a transport trolley (1), wherein the transport trolley (1) comprises a frame body (11), a support frame (12) and a guide rail (13), wherein the support frame (12) is mounted on the frame body (11), and is characterized in that: Also includes: A lifting mechanism (2) is arranged on the frame body (11); An elastic support cylinder (3) is arranged on the support frame (12) and is used to support the lifting mechanism (2); A clamping assembly (5) is symmetrically mounted on the bottom of the lifting mechanism (2); A transmission assembly (4), which is mirror-imaged and disposed at the bottom of the elastic support tube (3) and can move upward along with the elastic support tube (3) to drive the clamping assembly (5) to clamp the guide rail (13); An adjusting assembly (6) mounted on the top of the support frame (12) for supporting the pressure steel pipe; The lifting mechanism (2) comprises a hydraulic rod (21) movably mounted on the frame body (11) and penetrating the frame body (11); a support seat (23) capable of being supported on the guide rail (13) is fixedly connected to the bottom of the hydraulic rod (21); a gasket (22) is arranged on the top of the hydraulic rod (21); a tension spring (24) mounted on the outside of the hydraulic rod (21) is fixedly connected between the bottom of the gasket (22) and the upper surface of the frame body (11); The hydraulic rod 1 (21) is extended to support the support seat (23) on the guide rail (13) and then lift the support frame (12) upward.

2. The hydraulic lifting trolley mechanism for welding according to claim 1, characterized in that: The gasket (22) is provided with a gasket groove (221) at the top, and the support frame (12) is provided with a dome (121) located directly above the gasket groove (221) and capable of cooperating with the gasket groove (221).

3. The hydraulic lifting trolley mechanism for welding according to claim 1, characterized in that: The support frame (12) is fixedly connected with a limiting cylinder (122) which is sleeved on the outside of the hydraulic rod (21); the elastic supporting cylinder (3) is sleeved in the limiting cylinder (122); the elastic supporting cylinder (3) is also sleeved on the outside of the hydraulic rod (21) to support the gasket (22) so that it has an upward trend.

4. The hydraulic lifting trolley mechanism for welding according to claim 3 is characterized in that: In the initial state, a gap is left between the top of the gasket (22) and the support frame (12); The gasket (22) can move upward and break away from the limiting cylinder (122), and at this time, the top of the elastic support cylinder (3) is blocked by the limiting cylinder (122) and cannot move upward.

5. The hydraulic lifting trolley mechanism for welding according to claim 1, characterized in that: The top of the frame body (11) is also provided with a positioning ring (111) located outside the hydraulic rod (21), and the bottom of the support frame (12) is provided with a positioning hole (123) that can be sleeved on the outside of the positioning ring (111).

6. The hydraulic lifting trolley mechanism for welding according to claim 1, characterized in that: The transmission assembly (4) comprises a spring telescopic rod (41) fixedly connected to the bottom of the elastic support tube (3); the bottom of the spring telescopic rod (41) extends to below the frame body (11) and is fixedly connected to a connecting frame (42); the bottom of the connecting frame (42) abuts against the top of the support seat (23); the transmission assembly (4) further comprises a column (43) fixedly connected to both ends of the connecting frame (42); a convex column (44) is fixedly connected to the column (43).

7. The hydraulic lifting trolley mechanism for welding according to claim 6, characterized in that: The clamping assembly (5) comprises a spring assembly cam (51) symmetrically arranged on the same side of the bottom of the support seat (23) and in a compressed state, an annular tube (52) being fixedly connected to the top of the spring assembly cam (51), and a guide groove (53) being provided inside the annular tube (52); The column (43) is movably sleeved inside the annular cylinder (52), and the column (43) is initially located at the bottom of the guide groove (53) and can slide in the guide groove (53); When the support seat (23) moves downward, the spring telescopic rod (41) is stretched by its own elastic force and can keep the connecting frame (42) in contact with the support seat (23). After the support seat (23) is stuck on the guide rail (13), the spring telescopic rod (41) is fully stretched, and the elastic support tube (3) can drive the transmission assembly (4) to move upward by a distance that is smaller than the vertical distance between the two ends of the guide groove (53).

8. The hydraulic lifting trolley mechanism for welding according to claim 7, characterized in that: The adjustment assembly (6) comprises a support bracket (61) movably mounted on the top of the support frame (12); a ball bearing (611) is arranged at the bottom of the support bracket (61); the support bracket (61) contacts the top of the hydraulic rod 1 (21) via the ball bearing (611); a hydraulic rod 2 (62) for pushing the support bracket (61) to move horizontally and a hydraulic rod 3 (63) for pushing the support bracket (61) to move longitudinally are also arranged between the support bracket (61) and the support frame (12); The output ends of the hydraulic rod 2 (62) and the hydraulic rod 3 (63) are both provided with round balls, and the other ends of both are fixedly mounted on the support frame (12).

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