CN209936259U

CN209936259U - Welding roller frame

Info

Publication number: CN209936259U
Application number: CN201920501758.1U
Authority: CN
Inventors: 张剑焜; 卓宏明
Original assignee: Zhejiang International Maritime College
Current assignee: Zhejiang International Maritime College
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-01-14
Anticipated expiration: 2029-04-15

Abstract

The utility model discloses a welding roller frame has solved the big problem of current welding roller frame power consumption that can altitude mixture control. The energy-saving device comprises an upper machine base and a lower machine base, wherein a supporting wheel is arranged on the upper machine base, a lifting device for driving the upper machine base to lift is arranged on the lower machine base, the lifting device is provided with a hydraulic energy storage loop, and when the lifting device descends, the hydraulic energy storage loop stores energy; when the lifting device ascends, the hydraulic energy storage loop releases energy. When the lifting device descends, part of energy in the lifting device is stored in the hydraulic energy storage loop and plays a role in buffering; when the lifting device rises again, the hydraulic energy storage circuit releases the stored energy to serve as auxiliary power, and the overall energy consumption of the welding roller frame is reduced.

Description

Welding roller frame

Technical Field

The utility model relates to a welding auxiliary assembly technical field, concretely relates to welding roller frame.

Background

The welding roller frame is commonly used for welding an inner circular seam and an outer circular seam of a cylindrical workpiece and welding an inner longitudinal seam and an outer longitudinal seam, the welding roller frame simplifies the welding process and improves the safety and sanitary conditions of welding, and patent publication No. CN105414871A discloses a high-regulation welding roller frame, the height of the welding roller frame can be regulated through a lifting cylinder, but the welding roller frame is mainly used on some workpieces with larger tonnage, and a large amount of energy is consumed when the welding roller frame is lifted, so the operation cost of the welding roller frame is very high and is difficult to popularize.

SUMMERY OF THE UTILITY MODEL

The problem that the welding roller frame power consumption is big for solving current but altitude mixture control, the utility model provides a welding roller frame with energy storage function.

The utility model adopts the technical scheme as follows:

the welding roller frame comprises an upper machine base and a lower machine base, wherein the upper machine base is provided with a supporting wheel, the lower machine base is provided with a lifting device for driving the upper machine base to lift, the lifting device is provided with a hydraulic energy storage loop, and when the lifting device descends, the hydraulic energy storage loop stores energy; when the lifting device ascends, the hydraulic energy storage loop releases energy.

The hydraulic energy storage loop comprises an oil pump, an oil tank, a two-position three-way reversing valve, wherein the two-position three-way reversing valve comprises an oil inlet, an oil outlet and an oil return port, and the oil return port is sequentially connected with an oil inlet of an energy accumulator, a reversing valve and the oil pump.

An oil outlet of the oil pump is connected with an overflow valve.

The upper machine base is provided with a roller seat, the roller seat is provided with a clamp-shaped frame, and two ends of the clamp-shaped frame are provided with supporting wheels.

The bottom of the lower machine base is provided with a roller mechanism, the roller mechanism comprises a roller and a transmission shaft connected with the roller, and one end of the transmission shaft is connected with a power device.

The roller mechanism is provided with a hydraulic braking energy storage loop.

The hydraulic braking energy storage loop comprises a second oil tank, a pump motor and a three-position four-way reversing valve, the three-position four-way reversing valve comprises a first oil port, a second oil port, a third oil port and a fourth oil port, the second oil tank is connected with the first oil port, the second oil port and the third oil port are connected with the pump motor, and the fourth oil port is connected with a second energy accumulator.

And a two-position two-way reversing valve is also connected between the pump motor and the three-position four-way reversing valve.

The utility model has the advantages that:

when the lifting device descends, part of energy in the lifting device is stored in the hydraulic energy storage loop and plays a role in buffering; when the lifting device rises again, the hydraulic energy storage circuit releases the stored energy to serve as auxiliary power, and the overall energy consumption of the welding roller frame is reduced.

Drawings

Fig. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the lifting device of the present invention.

Fig. 3 is a schematic diagram of the energy storage of the descending hydraulic circuit of the lifting device.

Fig. 4 is a schematic diagram of the lifting device of the present invention for releasing energy from the hydraulic circuit.

Fig. 5 is a schematic diagram of the hydraulic braking energy storage circuit in a uniform speed or static state.

Fig. 6 is a schematic diagram of the hydraulic braking energy storage circuit of the present invention braking at the uniform speed in the forward state.

Fig. 7 is a schematic diagram of the hydraulic braking energy storage circuit of the present invention for backward starting.

Fig. 8 is a schematic diagram of the hydraulic braking energy storage circuit of the present invention braking at a constant speed in a retreating state.

Fig. 9 is a schematic diagram of the forward start of the hydraulic brake energy storage circuit of the present invention.

Fig. 10 is a schematic diagram of the hydraulic brake energy storage circuit of the present invention in failure.

The hydraulic brake system comprises an upper machine base 1, a lower machine base 2, a supporting wheel 3, a lifting device 4, a hydraulic energy storage loop 5, an oil pump 51, an oil tank 52, a two-position three-way reversing valve 53, an oil port A, an oil outlet B, an oil return port C, a first energy accumulator 54, a reversing valve 55, an overflow valve 56, a roller seat 6, a pincerlike frame 7, a roller mechanism 8, a roller 81, a transmission shaft 82, a power device 83, a check ring 7, a sealing ring 8, a hydraulic brake energy storage loop 9, a second oil tank 91, a pump motor 92, a three-position four-way reversing valve 93, an oil port D, an oil port E, an oil port F, an oil port G, an energy accumulator 94 and a two-position two-way reversing valve 95.

Detailed Description

The invention will be further explained with reference to the following embodiments and drawings:

in the embodiment, as shown in fig. 1, the welding roller frame includes an upper base 1 and a lower base 2, a support wheel 3 is arranged on the upper base 1, a lifting device 4 for driving the upper base 1 to lift is arranged on the lower base 2, the lifting device 4 is provided with a hydraulic energy storage circuit 5, and when the lifting device 4 descends, the hydraulic energy storage circuit 5 stores energy; when the lifting device 4 ascends, the hydraulic energy storage loop 5 releases energy. The lifting device 4 is a hydraulic cylinder, when a piston rod of the hydraulic cylinder descends, partial energy of the hydraulic cylinder is stored in the hydraulic energy storage loop, and meanwhile, the hydraulic cylinder plays a role in buffering; when the hydraulic cylinder rises again, the stored energy is released by the hydraulic energy storage loop and used as auxiliary power to push the piston rod of the hydraulic cylinder to rise, so that the overall energy consumption of the welding roller frame is reduced.

In the embodiment, as shown in fig. 2, 3, and 4, the hydraulic energy storage circuit 5 includes an oil pump 51, an oil tank 52, a two-position three-way directional valve 53, the two-position three-way directional valve 53 includes an oil inlet a, an oil outlet B, and an oil return port C, and the oil return port C is sequentially connected to an oil inlet of an energy storage 54, a directional valve 55, and the oil pump 51.

In the embodiment, as shown in fig. 2, 3 and 4, a relief valve 56 is connected to an oil outlet of the oil pump 51. The pressure maintaining function of the overflow valve 56 is to ensure the stability and reliability of the pressure in the system.

In the embodiment, as shown in fig. 1, a roller seat 6 is arranged on the upper machine base 1, a pincer-shaped frame 7 is arranged on the roller seat 6, and support wheels 3 are arranged at two ends of the pincer-shaped frame 7. The pincerlike frame 7 is fixed with a power device which can drive the pincerlike frame 7 to rotate, and the pincerlike frame 7 is rotated to realize the matching with the cylinders with different diameters.

In an embodiment, as shown in fig. 1, a roller mechanism 8 is disposed at the bottom of the lower base 2, the roller mechanism 8 includes a roller 81 and a transmission shaft 82 connected to the roller 81, and one end of the transmission shaft 82 is connected to a power device 83. The rollers 81 can be mounted on the guide rails, and the welding assembly of workpieces is realized by adjusting the distance between the front and rear roller frames, so that the hoisting is avoided.

In an embodiment, as shown in fig. 5, 6, 7, 8 and 9, the roller mechanism 8 is provided with a hydraulic brake charging circuit 9. The hydraulic braking energy storage loop 9 comprises a second oil tank 91, a pump motor 92 and a three-position four-way reversing valve 93, the three-position four-way reversing valve 93 comprises a first oil port D, a second oil port E, a third oil port F and a fourth oil port G, the second oil tank 91 is connected with the first oil port D, the second oil port E and the third oil port F are connected with the pump motor 92, and the fourth oil port G is connected with a second energy accumulator 94. Pump motor 92 may be bi-directional and accumulator 94 may be connected to an overflow valve.

In an embodiment, as shown in fig. 10, a two-position two-way reversing valve 95 is further connected between the pump motor 92 and the three-position four-way reversing valve 93. When the hydraulic brake energy storage circuit 9 fails, the two-position two-way reversing valve 95 is opened manually, electromagnetically or in other modes. At this time, the two ports of the pump motor 92 are directly communicated; the pump motor 92, whether rotating in the forward or reverse direction, is idling, and the roller frame can still move normally.

The embodiment is shown in fig. 3 ~ and fig. 9, and specifically includes the following steps:

FIG. 3 shows that the hydraulic cylinder gradually contracts as the workpiece and the working device move downwards by the weight of the workpiece and the working device, the two-position three-way reversing valve 53 keeps the left position, and the first energy storage device 54 stores energy;

(II) in the figure 4, the hydraulic cylinder gradually extends, the two-position three-way reversing valve 53 keeps the right position, the oil pump works 51, and the first energy accumulator 54 releases energy to complete the lifting of the workpiece;

(III) in FIG. 5, when the roller mechanism 8 is in a constant speed running or stopping state, the three-position four-way reversing valve 93 is in a middle position, and the pump motor 92 does not work;

(IV) as shown in FIG. 6, when braking is started in a uniform-speed forward state, the three-position four-way reversing valve 93 is in a lower position, at this time, the pump motor starts to work under the driving of inertia of the roller frame, hydraulic oil discharged from an oil outlet of the pump motor enters the second energy accumulator 94 through the three-position four-way reversing valve 93, and the other oil port of the pump motor sucks oil from the second oil tank 91 through the three-position four-way reversing valve 93;

(V) in fig. 7, when the vehicle starts to move backwards, the three-position four-way reversing valve 93 is in the lower position, hydraulic oil in the second energy storage 94 enters the pump motor 92 through the three-position four-way reversing valve 93 to drive the pump motor 92 to work, and the pump motor 92 drives the wheels to rotate, so that the backward auxiliary driving is realized. The hydraulic oil discharged by the pump motor returns to the second oil tank 91 through the three-position four-way reversing valve 93;

(VI) when the brake is started in the uniform-speed backward state shown in the figure 8, the three-position four-way reversing valve 93 is in an upper position, the pump motor 92 starts to work under the driving of inertia of the roller frame, hydraulic oil discharged from an oil outlet of the pump motor 92 enters the second energy accumulator 94 through the three-position four-way reversing valve 93, and the other oil outlet of the pump motor 92 sucks oil from an oil tank through the three-position four-way reversing valve 93;

and (seventhly) when the vehicle starts to move forward and is started in a static state, the three-position four-way reversing valve 93 is in an upper position, hydraulic oil in the second energy storage 94 enters the pump motor 92 through the three-position four-way reversing valve 93 to drive the pump motor 92 to work, and the pump motor 92 drives wheels to rotate so as to realize forward auxiliary driving. The hydraulic oil discharged from the pump motor 92 is returned to the second oil tank 91 through the three-position four-way selector valve 93.

It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And that such obvious changes and modifications are within the scope of the present invention as defined by the appended claims.

Claims

1. Welding roller frame, its characterized in that: the energy-saving device comprises an upper base (1) and a lower base (2), wherein a supporting wheel (3) is arranged on the upper base (1), a lifting device (4) for driving the upper base (1) to lift is arranged on the lower base (2), the lifting device (4) is provided with a hydraulic energy storage loop (5), and when the lifting device (4) descends, the hydraulic energy storage loop (5) stores energy; when the lifting device (4) rises, the hydraulic energy storage circuit (5) releases energy.

2. The welding roller frame of claim 1, wherein: hydraulic pressure energy storage circuit (5) include oil pump (51), an oil tank (52), two tee bend switching-over valves (53) include oil inlet (A), oil-out (B) and oil return opening (C), the oil return opening (C) connects gradually the oil inlet of an energy storage ware (54), switching-over valve (55), oil pump (51).

3. The welding roller frame of claim 2, wherein: an oil outlet of the oil pump (51) is connected with an overflow valve (56).

4. The welding roller frame of claim 1, wherein: the upper machine base (1) is provided with a roller seat (6), the roller seat (6) is provided with a clamp-shaped frame (7), and two ends of the clamp-shaped frame (7) are provided with supporting wheels (3).

5. The welding roller frame of claim 1, wherein: lower frame (2) bottom is equipped with gyro wheel mechanism (8), gyro wheel mechanism (8) are including gyro wheel (81) and transmission shaft (82) of connecting gyro wheel (81), power device (83) are connected to the one end of transmission shaft (82).

6. The welding roller frame of claim 5, wherein: the roller mechanism (8) is provided with a hydraulic braking energy storage loop (9).

7. The welding roller frame of claim 6, wherein: the hydraulic braking energy storage loop (9) comprises a second oil tank (91), a pump motor (92) and a three-position four-way reversing valve (93), wherein the three-position four-way reversing valve (93) comprises a first oil port (D), a second oil port (E), a third oil port (F) and a fourth oil port (G), the second oil tank (91) is connected with the first oil port (D), the second oil port (E), the third oil port (F) is connected with the pump motor (92), and the fourth oil port (G) is connected with a second energy accumulator (94).

8. The welding roller frame of claim 7, wherein: and a two-position two-way reversing valve (95) is also connected between the pump motor (92) and the three-position four-way reversing valve (93).