Trolley for assembling and welding pressure steel pipes in hole

Abstract

The utility model discloses a trolley for assembling and welding pressure steel pipes in a hole, and relates to the technical field of steel pipe welding auxiliary equipment. Comprising a trolley frame body connected to a track in a sliding mode, and an adjusting base is arranged on the trolley frame body; the driving wheel assembly is fixed on the trolley frame body; the driven wheel assembly is movably connected to the trolley frame body; the distance adjusting mechanism comprises an adjusting nut and an adjusting lead screw, one end of the adjusting lead screw is connected with the driven wheel assembly, and the other end of the adjusting lead screw penetrates through the adjusting seat to be connected with the adjusting nut; the driven wheel assembly at the end of the adjusting lead screw is driven to move by rotating the adjusting nut, and the distance between the driven wheel assembly and the driving wheel assembly is changed. The device is simple in structure, convenient to use and capable of adjusting the distance according to the size of a steel pipe stiffening ring, so that the steel pipes with different sizes can be borne, and the requirements of assembly and welding of pressure steel pipes with different stiffening rings can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe welding auxiliary equipment, and particularly relates to a trolley for butt welding of penstocks in a tunnel. Background Art

[0002] A pumped-storage power station is a type of hydropower station that pumps water to an upper reservoir during low electricity load periods and releases the water to a lower reservoir to generate electricity during high electricity load periods, also known as a storage-type hydropower station. It can convert the excess electricity during low grid loads into high-value electricity during peak grid loads. It is also suitable for frequency modulation and phase modulation, stabilizing the frequency and voltage of the power system, and is suitable for emergency standby. It can also improve the efficiency of thermal power plants and nuclear power plants in the system.

[0003] Penstocks are a relatively common water diversion method used in the construction of pumped-storage power stations. In existing penstock installation projects, butt welding of two sections has been achieved. After butt welding, a trolley is required as an auxiliary device for the circumferential welding of the penstock. The function of the trolley is to carry the two penstocks after butt welding and drive the two steel pipes to perform circular motion, thereby facilitating the circumferential welding. However, due to the differences in the sizes of the stiffening rings of the penstocks, the existing trolleys cannot make adaptive adjustments according to the sizes of the stiffening rings, resulting in low versatility and thus reducing the welding efficiency of the penstocks. Summary of the Utility Model

[0004] The utility model aims to solve the technical problem that the existing trolleys cannot make adaptive adjustments according to the sizes of the steel pipe stiffening rings, resulting in low versatility and thus reducing the welding efficiency of the penstocks. The purpose is to provide a trolley for butt welding of penstocks in a tunnel, which has a simple structure and is easy to use. It can adjust the spacing according to the size of the steel pipe stiffening ring, thereby realizing the bearing function for steel pipes of different sizes and meeting the butt welding requirements of penstocks with different stiffening rings.

[0005] The utility model is achieved by the following technical solutions:

[0006] The utility model provides a trolley for butt welding of penstocks in a tunnel, comprising:

[0007] A trolley frame body, slidably connected to the track, and an adjustment seat is arranged on the trolley frame body;

[0008] A driving wheel assembly, fixed on the trolley frame body;

[0009] A driven wheel assembly, movably connected to the trolley frame body;

[0010] A spacing adjustment mechanism, comprising an adjustment nut and an adjustment screw rod. One end of the adjustment screw rod is connected to the driven wheel assembly, and the other end passes through the adjustment seat and is connected to the adjustment nut;

[0011] By rotating the adjusting nut, the driven wheel assembly at the end of the adjusting screw rod is driven to move, changing the distance between the driven wheel assembly and the driving wheel assembly.

[0012] Further, the bogie frame body includes traveling wheels, connecting beams, bearing plates and frame webs. Frame webs are provided at both ends of the connecting beam. Traveling wheels are installed at the lower part of the frame webs, and bearing plates are installed at the top of the frame webs.

[0013] Further, limit blocks are provided on both sides of the driven wheel assembly on the bearing plate.

[0014] Further, the driving wheel assembly includes a power source, a driving wheel frame and a driving wheel. The driving wheel frame is fixed on the bogie frame body. The driving wheel is rotatably connected to the driving wheel frame, and the driving wheel is connected to the power source.

[0015] Further, the driving wheel frame includes a driving wheel frame web and a driving wheel frame bottom plate. The driving wheel frame bottom plate is fixed on the bogie frame body. The driving wheel frame web is vertically connected to the driving wheel frame bottom plate, and the driving wheel is rotatably connected to the driving wheel frame web.

[0016] Further, a driving wheel frame reinforcing plate is also provided on the outer side of the driving wheel frame web.

[0017] Further, the driven wheel assembly includes a driven wheel and a driven wheel frame. The driven wheel frame is fixed on the bogie frame body. The driven wheel is rotatably connected to the driven wheel frame.

[0018] Further, the driven wheel frame includes a driven wheel frame web and a driven wheel frame bottom plate. The driven wheel frame bottom plate is fixed on the bogie frame body. The driven wheel frame web is vertically connected to the driven wheel frame bottom plate, and the driven wheel is rotatably connected to the driven wheel frame web.

[0019] Further, a driven wheel frame reinforcing plate is also provided on the outer side of the driven wheel frame web.

[0020] Further, heavy-duty universal balls are provided on both the driving wheel assembly and the driven wheel assembly.

[0021] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0022] 1. The utility model drives the movement of the driven wheel assembly at the end of the adjusting screw rod by rotating the adjusting nut, changes the distance between the driven wheel assembly and the driving wheel assembly, and after adjustment, fixes and connects the driving wheel assembly and the bogie frame body with a pin shaft. Then, the assembled steel pipe is placed between the driven wheel assembly and the driving wheel assembly to carry the steel pipe. The driving wheel rotates to drive the steel pipe to rotate, so as to perform welding under rotation. The device has a simple structure and is easy to use. The distance can be adjusted according to the size of the steel pipe stiffening ring, so as to achieve the bearing effect on steel pipes of different sizes, and can meet the requirements of assembly and welding of different stiffening ring penstocks.

[0023] 2. The utility model can strengthen the webs of the driving wheel frame and the driven wheel frame through the reinforcing plates of the driving wheel frame and the reinforcing plates of the driven wheel frame, and improve the stability of the driving wheel frame and the driven wheel frame.

[0024] 3. When assembling and welding the penstock, since the penstock rotates on the driving wheel and the driven wheel, the penstock will move along the axis direction of the tunnel. The utility model can limit the movement of the penstock along the axis direction of the tunnel through the heavy-duty universal balls installed on the driving wheel and the driven wheel. Brief Description of the Drawings

[0025] The drawings described herein are used to provide a further understanding of the embodiments of the utility model, form a part of this application, and do not limit the embodiments of the utility model. In the drawings:

[0026] Figure 1 is the front view structural schematic diagram of the utility model;

[0027] Figure 2 is the side view of the utility model;

[0028] Figure 3 is the front view of the bogie frame body;

[0029] Figure 4 is the side view of the bogie frame body;

[0030] Figure 5 is the front view of the driven wheel;

[0031] Figure 6 is the cross-sectional view of the driven wheel;

[0032] Figure 7 is the front view of the driving wheel;

[0033] Figure 8 is the cross-sectional view of the driving wheel.

[0034] The reference signs and corresponding component names in the drawings:

[0035] 100 - Rail, 200 - Frame body of the trolley, 201 - Limit block, 202 - Traveling wheel, 203 - Traveling wheel shaft, 204 - Connecting beam, 205 - Adjusting seat, 206 - Bearing plate, 207 - Web plate of the frame, 300 - Adjusting nut, 400 - Adjusting screw rod, 500 - Heavy-duty universal ball, 600 - Driven wheel assembly, 601 - Driven wheel, 602 - Web plate of the driven wheel frame, 603 - Driven wheel bearing, 604 - Reinforcing plate of the driven wheel frame, 605 - Driven wheel shaft, 606 - Bottom plate of the driven wheel frame, 700 - Driving wheel assembly, 701 - Power source, 702 - Web plate of the driving wheel frame, 703 - Driving wheel bearing, 704 - Reinforcing plate of the driving wheel frame, 705 - Bottom plate of the driving wheel frame, 706 - Driving wheel, 707 - Driving wheel shaft. Detailed implementation mode

[0036] In order to make the purpose, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with the embodiments and the drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and do not limit the present utility model.

[0037] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present utility model. However, it is obvious to those of ordinary skill in the art that the present utility model does not have to adopt these specific details. In other embodiments, well-known structures, circuits, materials or methods are not specifically described in order to avoid obscuring the present utility model.

[0038] Throughout the specification, references to "one embodiment", "embodiment", "one example" or "example" mean that a particular feature, structure or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present utility model. Thus, the phrases "one embodiment", "embodiment", "one example" or "example" appearing throughout the specification do not necessarily all refer to the same embodiment or example. In addition, the specific features, structures or characteristics may be combined in any suitable combination and / or sub-combination in one or more embodiments or examples. In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] In the description of the present utility model, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the application product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0040] At the same time, the terms "set", "assembled", "connected", and "joined" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Embodiment

[0042] This embodiment provides a trolley for butt welding of penstocks in a tunnel, as Figure 1 - Figure 2 shown, including:

[0043] The trolley frame body 200 is slidably connected to the track 100, and an adjustment seat 205 is provided on the trolley frame body 200;

[0044] The driving wheel assembly 700 is fixed on the trolley frame body 200;

[0045] The driven wheel assembly 600 is movably connected to the trolley frame body 200;

[0046] The spacing adjustment mechanism includes an adjustment nut 300 and an adjustment screw rod 400. One end of the adjustment screw rod 400 is connected to the driven wheel assembly 600, and the other end passes through the adjustment seat 205 and is connected to the adjustment nut 300;

[0047] By rotating the adjustment nut 300, the driven wheel assembly 600 at the end of the adjustment screw rod 400 is driven to move, changing the spacing between the driven wheel assembly 600 and the driving wheel assembly 700.

[0048] When the utility model is in use, the driven wheel assembly 600 at the end of the adjusting screw rod 400 is driven to move by rotating the adjusting nut 300, the distance between the driven wheel assembly 600 and the driving wheel assembly 700 is changed, and after the adjustment is in place, the driving wheel assembly 700 is fixedly connected to the bogie frame body 200 with a pin shaft. Then, the assembled steel pipe is placed between the driven wheel assembly 600 and the driving wheel assembly 700 to carry the steel pipe. The driving wheel 706 rotates to drive the steel pipe to rotate, so as to perform welding under rotation. The device has a simple structure and is convenient to use. The distance can be adjusted according to the size of the steel pipe stiffening ring, so as to realize the bearing of steel pipes of different sizes, and can meet the requirements of assembling and welding of different stiffening ring penstocks.

[0049] In one or more embodiments of the present utility model, as Figure 3 and 4 shown, the bogie frame body 200 includes traveling wheels 202, connecting beams 204, bearing plates 206 and frame webs 207. The connecting beams 204 are provided with frame webs 207 at both ends. The traveling wheels 202 are installed at the lower part of the frame webs 207, and the bearing plates 206 are installed at the top of the frame webs 207. Among them, the traveling wheels 202 are installed on the traveling wheel shafts 203, and both ends of the traveling wheel shafts 203 are connected to the frame webs 207 on both sides. The connecting beam 204 adopts a U-shaped structure to connect the frame webs 207 on the left and right sides into a whole. The bottom surface of the connecting beam 204 is about 100 mm away from the bottom plate of the tunnel, which can meet the requirement that the bogie frame body 200 travels on the track 100 and is convenient for the trolley to withdraw from under the penstock after the assembling and welding are completed.

[0050] As a preferred implementation manner, limit blocks 201 are provided on both sides of the driven wheel assembly 600 on the bearing plate 206. As Figure 3 and 4 shown, the limit blocks 201 are installed at the positions on both sides of the driven wheel assembly 600 and fixed on the bogie frame body 200. The limit blocks 201 are used to control the sliding of the driven wheel assembly 600 on the bogie frame body 200.

[0051] In one or more embodiments of the present utility model, as Figure 7 and 8 shown, the driving wheel assembly 700 includes a power source 701, a driving wheel frame and a driving wheel 706. The driving wheel frame is fixed on the bogie frame body 200, the driving wheel 706 is rotatably connected to the driving wheel frame, and the driving wheel 706 is connected to the power source 701. The function of the driving wheel frame is to realize the installation of the driving wheel 706. The power source 701 is composed of a motor and a reducer, which provides rotational power for the driving wheel 706. The output end of the motor + reducer is connected to the driving wheel shaft 707 of the driving wheel 706 by a key, and the motor rotates to drive the driving wheel 706 to rotate.

[0052] Specifically, the driving wheel frame includes a driving wheel frame web 702 and a driving wheel frame bottom plate 705. The driving wheel frame bottom plate 705 is fixed on the bogie frame body 200. The driving wheel frame web 702 is vertically connected to the driving wheel frame bottom plate 705, and the driving wheel 706 is rotatably connected to the driving wheel frame web 702. Among them, the driving wheel frame bottom plate 705 is connected to the bogie frame body 200 through fasteners. The driving wheel 706 is connected to the driving wheel shaft 707, and both ends of the driving wheel shaft 707 are connected to the driving wheel frame web 702 through driving wheel bearings 703.

[0053] As a preferred embodiment, a driving wheel frame reinforcing plate 704 is further provided on the outer side of the driving wheel frame web 702. The setting of the driving wheel frame reinforcing plate 704 can strengthen the driving wheel frame web 702 and improve the stability of the driving wheel frame.

[0054] In one or more embodiments of the present invention, as Figure 5 and 6 shown, the driven wheel assembly 600 includes a driven wheel 601 and a driven wheel frame. The driven wheel frame is fixed on the bogie frame body 200, and the driven wheel 601 is rotatably connected to the driven wheel frame. The function of the driven wheel frame is to realize the installation of the driven wheel 601.

[0055] Specifically, the driven wheel frame includes a driven wheel frame web 602 and a driven wheel frame bottom plate 606. The driven wheel frame bottom plate 606 is fixed on the bogie frame body 200. The driven wheel frame web 602 is vertically connected to the driven wheel frame bottom plate 606, and the driven wheel 601 is rotatably connected to the driven wheel frame web 602. Among them, the driven wheel frame web 602 is connected to one end of the adjusting screw rod 400. After adjustment, the driven wheel frame bottom plate 606 is connected to the bogie frame body 200 through fasteners. The driven wheel 601 is connected to the driven wheel shaft 605, and both ends of the driven wheel shaft 605 are connected to the driven wheel frame web 602 through driven wheel bearings 603.

[0056] As a preferred embodiment, a driven wheel frame reinforcing plate 604 is further provided on the outer side of the driven wheel frame web 602. The setting of the driven wheel frame reinforcing plate 604 can strengthen the driven wheel frame web 602 and improve the stability of the driven wheel frame.

[0057] In one or more embodiments of the present invention, heavy-duty universal balls 500 are provided on both the driving wheel assembly 700 and the driven wheel assembly 600. Specifically, as Figure 2As shown, the heavy-duty universal ball 500 (bottom-mounted type) has a model number of MYL-38. Select a suitable heavy-duty universal ball 500 according to the diameter size of the penstock. The universal balls are assembled on both sides of the driven wheel 601 through fasteners, and on the other side of the driving wheel 706 where the power source 701 is installed. Two pieces are installed on each side, and the included angle between the two pieces is 90 degrees. The heavy-duty universal ball 500 is set to be used when assembling and welding the penstock. Since the penstock rotates on the driving wheel 706 and the driven wheel 601, the penstock will move along the axis direction of the tunnel. By means of the heavy-duty universal balls 500 (bottom-mounted type) installed on the driving wheel 706 and the driven wheel 601, the movement of the penstock along the axis direction of the tunnel can be restricted.

[0058] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A trolley for assembling and welding penstocks in a tunnel, characterized in that, Comprising: A carriage frame body (200), slidably connected to a track (100), and an adjustment seat (205) is provided on the carriage frame body (200); A driving wheel assembly (700), fixed to the carriage frame body (200); A driven wheel assembly (600), movably connected to the carriage frame body (200); A spacing adjustment mechanism, including an adjustment nut (300) and an adjustment screw rod (400), one end of the adjustment screw rod (400) is connected to the driven wheel assembly (600), and the other end passes through the adjustment seat (205) and is connected to the adjustment nut (300); By rotating the adjustment nut (300), the driven wheel assembly (600) at the end of the adjustment screw rod (400) is driven to move, changing the spacing between the driven wheel assembly (600) and the driving wheel assembly (700).

2. The trolley for butt welding of penstocks in a cave according to claim 1, characterized in that The carriage frame body (200) includes traveling wheels (202), connecting beams (204), bearing plates (206) and frame body webs (207). Frame body webs (207) are provided at both ends of the connecting beam (204). Traveling wheels (202) are installed at the lower part of the frame body webs (207), and bearing plates (206) are installed at the top of the frame body webs (207).

3. The trolley for butt welding of penstocks in a cave according to claim 2, characterized in that Limit blocks (201) are provided on the bearing plate (206) on both sides of the driven wheel assembly (600).

4. A trolley for butt welding of penstocks in a tunnel according to claim 1, characterized in that, The driving wheel assembly (700) includes a power source (701), a driving wheel frame and a driving wheel (706). The driving wheel frame is fixed to the carriage frame body (200), the driving wheel (706) is rotatably connected to the driving wheel frame, and the driving wheel (706) is connected to the power source (701).

5. The trolley for butt welding of penstocks in the tunnel according to claim 4, characterized in that, The driving wheel frame includes a driving wheel frame web (702) and a driving wheel frame bottom plate (705). The driving wheel frame bottom plate (705) is fixed to the carriage frame body (200), the driving wheel frame web (702) is vertically connected to the driving wheel frame bottom plate (705), and the driving wheel (706) is rotatably connected to the driving wheel frame web (702).

6. The trolley for butt welding of penstocks in a cave according to claim 5, characterized in that, A driving wheel frame reinforcing plate (704) is further provided on the outer side of the driving wheel frame web (702).

7. A trolley for butt welding of penstocks in a tunnel according to claim 1, characterized in that, The driven wheel assembly (600) includes a driven wheel (601) and a driven wheel frame. The driven wheel frame is fixed to the carriage frame body (200), and the driven wheel (601) is rotatably connected to the driven wheel frame.

8. A trolley for butt welding of penstocks in a tunnel according to claim 7, characterized in that, The driven wheel frame includes a driven wheel frame web (602) and a driven wheel frame bottom plate (606). The driven wheel frame bottom plate (606) is fixed to the carriage frame body (200), the driven wheel frame web (602) is vertically connected to the driven wheel frame bottom plate (606), and the driven wheel (601) is rotatably connected to the driven wheel frame web (602).

9. The trolley for butt welding of penstock in the hole according to claim 8, characterized in that, A driven wheel frame reinforcing plate (604) is further provided on the outer side of the driven wheel frame web (602).

10. The trolley for butt welding of penstocks in a tunnel according to claim 1, wherein, Heavy-duty universal balls (500) are provided on both the driving wheel assembly (700) and the driven wheel assembly (600).

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