CN209494787U - A kind of adjustable cylinder of backhaul - Google Patents

Abstract

The utility model relates to cylinder technical fields, more particularly to a kind of adjustable cylinder of backhaul, including cylinder barrel, mounting base, limit shaft, piston rod, linear bearing, anti-bull stick and output link block, cylinder barrel bottom is fixed on equipped with the first port being connected to the first gas chamber, it is controlled and is opened and closed by rubber sleeve valve, limit shaft is penetrated in cylinder barrel and is connect with first piston disk, mechanical position limitation adjusting nut is arranged on the axis body outside cylinder barrel, the second port being connected to the second gas chamber is equipped at the top of limit shaft, cylinder barrel bottom sidewall is equipped with the third port being connected to third gas chamber, top land is connect with second piston disk, bottom is connect after being pierced by cylinder barrel bottom with anti-bull stick top, linear bearing is fixed on mounting base side wall, anti-bull stick is connect after passing through linear bearing with output link block.This case structure is simple, and cylinder is divided into three gas chambers by two piston plates, by the control to the first gas chamber, realizes the adjusting of return hydraulic cylinder, adjusting is easy to operate, and production cost is low, easy to promote and utilize.

Description

A kind of adjustable cylinder of backhaul

Technical field

The utility model relates to cylinder technical field more particularly to a kind of adjustable cylinders of backhaul.

Background technique

In existing welding equipment, according to the difference of welding demand, need to match the welding cylinder of different backhauls, but existing Some welding cylinders or return hydraulic cylinder are non-adjustable, when the demand of welding changes, need replacing new cylinder or even if Cylinder itself has backhaul regulatory function, but air cylinder structure is complicated, at high cost, and backhaul adjusting is complicated for operation, is unfavorable for welding Connect the large scale application of manufacturer.

Utility model content

For the problems of the prior art, the utility model provides a kind of adjustable cylinder of backhaul.

To realize the above technical purpose, the technical solution of the utility model is:

A kind of adjustable cylinder of backhaul, including cylinder barrel, mounting base, limit shaft, piston rod, linear bearing, anti-bull stick and defeated Link block out, the cylinder barrel bottom are fixed at the top of mounting base, are successively arranged first piston disk from top to bottom inside the cylinder barrel With second piston disk, cylinder barrel inner space is divided into the first gas chamber, by the first piston disk and second piston disk from top to bottom Two gas chambers and third gas chamber, the cylinder barrel top sidewall are equipped with the first port, and first port is connected to the first gas chamber, and by The control opening and closing of rubber sleeve valve, the limit shaft are penetrated in cylinder barrel from the top of cylinder barrel and are connect with first piston disk, and the limit shaft is located at It is arranged with mechanical position limitation adjusting nut on axis body outside cylinder barrel, is equipped with the second port, second gas at the top of the limit shaft Mouth is connected to the second gas chamber, and the cylinder barrel bottom sidewall is equipped with third port, and the third port is connected to third gas chamber, described Piston rod is set to inside cylinder barrel, and top is connect with second piston disk, and bottom is connect after being pierced by cylinder barrel bottom with anti-bull stick top, institute It states linear bearing and is vertically arranged and is fixed on mounting base side wall, the anti-bull stick passes through bottom and output link block after linear bearing Connection.

Preferably, the cylinder barrel is aluminium alloy cylinder barrel

From the above, it can be seen that the utility model has following advantages: the utility model structure is simple, passes through two Piston plate will be divided into three gas chambers inside cylinder barrel, by the control to the first gas chamber, realize the adjusting of return hydraulic cylinder, Not only adjust easy to operate, and production cost is low, easy to promote and utilize.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the B-B direction cut-away view of Fig. 1.

Appended drawing reference: 1. cylinder barrels, 2. mounting bases, 3. limit shafts, 4. piston rods, 5. linear bearings, 6. anti-bull sticks, 7. outputs Link block, 8. first piston disks, 9. second piston disks, 10. first gas chambers, 11. second gas chambers, 12. third gas chambers, 13. first Port, 14. first ports, 15. first ports, 16. rubber sleeve valves, 17. mechanical position limitation adjusting nuts.

Specific embodiment

A specific embodiment of the utility model is described in detail combined with Figure 1 and Figure 2, but not to the power of the utility model Benefit requires to do any restriction.

As depicted in figs. 1 and 2, the adjustable cylinder of a kind of backhaul, including cylinder barrel 1, mounting base 2, limit shaft 3, piston rod 4, The top of mounting base 2 is fixed in linear bearing 5, anti-bull stick 6 and output link block 7,1 bottom of cylinder barrel, inside cylinder barrel 1 from top to bottom according to It is secondary to be equipped with first piston disk 8 and second piston disk 9, first piston disk 8 and second piston disk 9 by cylinder barrel inner space from top to bottom It is divided into the first gas chamber, the second gas chamber and third gas chamber (the first gas chamber 10 for being formed when dashed box part is cylinder operation in Fig. 2, the Two gas chambers 11 and third gas chamber 12), 1 top sidewall of cylinder barrel is equipped with the first port 13, and the first port 13 is connected to the first gas chamber 10, And controlled and opened and closed by rubber sleeve valve 16, limit shaft 3 is penetrated in cylinder barrel 1 from the top of cylinder barrel 1 and is connect with first piston disk 8, and limit shaft 3 It is arranged with mechanical position limitation adjusting nut 17 on axis body outside the cylinder barrel, is equipped with the second port 14, the second port at the top of limit shaft 3 14 are connected to the second gas chamber 11, and 1 bottom sidewall of cylinder barrel is equipped with third port 15, and third port 15 is connected to third gas chamber 12, living Stopper rod 4 is set to inside cylinder barrel 1, and top is connect with second piston disk 9, and bottom is pierced by behind 1 bottom of cylinder barrel and connects at the top of anti-bull stick 6 It connects, linear bearing 5 is vertically arranged and is fixed on 2 side wall of mounting base, and anti-bull stick 6 passes through bottom and output connection after linear bearing 5 Block 7 connects.Wherein, cylinder barrel can use aluminum alloy material.

When concrete application, mounting base 2 is used to for cylinder being fixed on welding equipment, and output link block 7 is lived for connecting The component of stopper rod driving.

The working principle of the utility model are as follows: cylinder barrel is divided by first piston disk and second piston disk inside cylinder barrel Three gas chambers, i.e. the first gas chamber, the second gas chamber and third gas chamber；

Out when journey, by the second port to the second gas chamber air inlet, piston rod is moved down, the third port outlet of third gas chamber；

When backhaul, when opening rubber sleeve valve manually, by the first port, it is empty that the biggish compression of air pressure is passed through to the first gas chamber Gas, the first gas chamber become larger, and rubber sleeve valve is closed, the closing of the first gas chamber；By third port to third gas chamber air inlet, when the second gas chamber Port outside outlet when, piston rod rises, and since the first gas chamber has become larger, the lifting position of piston rod is limited and becomes smaller, To realize that the position of return hydraulic cylinder is adjusted.Simultaneously because the first gas chamber is the gas compartment, risen in the return stroke of piston rod To good buffer function.In above-mentioned working principle, as shown in Fig. 2, by adjusting mechanical position limitation adjusting nut 17 and limit Axis cooperation, controls the size of the first gas chamber, to realize the specific setting of return hydraulic cylinder position.

In conclusion the utility model has the advantage that the utility model structure is simple, by two piston plates by gas It is divided into three gas chambers inside cylinder cylinder barrel, by the control to the first gas chamber, realizes the adjusting of return hydraulic cylinder, not only adjusts behaviour Make simplicity, and production cost is low, it is easy to promote and utilize.

It is understood that being merely to illustrate the utility model above with respect to the specific descriptions of the utility model and not being It is limited to technical solution described in the utility model embodiment.Those skilled in the art should understand that still can be with It modifies to the utility model or equivalent replacement, to reach identical technical effect；Needs are used as long as meeting, all in this reality Within novel protection scope.

Claims (2)

1. a kind of adjustable cylinder of backhaul, it is characterised in that: including cylinder barrel, mounting base, limit shaft, piston rod, linear bearing, prevent Bull stick and output link block, the cylinder barrel bottom are fixed at the top of mounting base, are successively arranged the inside the cylinder barrel from top to bottom Cylinder barrel inner space is divided into first by one piston plate and second piston disk, the first piston disk and second piston disk from top to bottom Gas chamber, the second gas chamber and third gas chamber, the cylinder barrel top sidewall are equipped with the first port, and first port and the first gas chamber connect It is logical, and controlled and opened and closed by rubber sleeve valve, the limit shaft is penetrated in cylinder barrel from the top of cylinder barrel and is connect with first piston disk, the limit Axle position is arranged with mechanical position limitation adjusting nut on the axis body outside the cylinder barrel, the second port is equipped at the top of the limit shaft, described Second port is connected to the second gas chamber, and the cylinder barrel bottom sidewall is equipped with third port, and the third port and third gas chamber connect Logical, the piston rod is set to inside cylinder barrel, and top is connect with second piston disk, and bottom is pierced by behind cylinder barrel bottom and anti-bull stick top Connection, the linear bearing are vertically arranged and are fixed on mounting base side wall, the anti-bull stick pass through after linear bearing bottom with it is defeated Link block connects out.

2. the adjustable cylinder of backhaul according to claim 1, it is characterised in that: the cylinder barrel is aluminium alloy cylinder barrel.