CN201241890Y

CN201241890Y - Single-acting multiplying-power air cylinder

Info

Publication number: CN201241890Y
Application number: CNU2008201631580U
Authority: CN
Inventors: 孙光锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-19
Filing date: 2008-08-19
Publication date: 2009-05-20
Anticipated expiration: 2018-08-19

Abstract

The utility model relates to a single-acting double-power cylinder, wherein air can only get into a steel mesh welding equipment from one direction, and output pressure is one time increased. One ends of a front cylinder and a rear cylinder are connected with a connecting piece, and the other ends are connected with a front cover and a rear cover, and the front cover, the rear cover and a supporting stand are fixed to be an integral body with piston air cavities E, F by a draw rod, a draw rod nut and a bolt, and a front piston which is fixed with a sealing ring and a front piston rod is matched with the piston air cavity E in a sliding way, and a rear piston which is fixed with a sealing ring and a rear piston rod is matched with the piston air cavity F in a sliding way, and a spring is further sleeved on the front piston rod, and a through hole is arranged in the middle of the rear piston rod to form an air cavity G. An escape hole R2 and an air inlet P are arranged on the front cover and the rear cover, and exhaust ports R1 are arranged among the front cylinder, the rear cylinder and the connecting piece. The single-acting double-power cylinder has little gas-use capacity, which saves energy. A bearing, a bearing shaft and a buffer ring are further mounted on the front piston rod and the rear piston rod, and the front and the rear pistons are led to smoothly run, which have little resistance and have no impact. The single-acting double-power cylinder not only improves the welding quality and has high working efficiency, but also improves the service span of the cylinder.

Description

Single action times strength cylinder

Technical field

The utility model relate to use in a kind of full gas control cylinder, particularly steel wire welding equipment can only be from the single action times strength cylinder of a direction air inlet.

Background technique

Patent No. CN03200428.1 " reinforcing bar molding machine series connection add air cylinder ", though a kind of two air chambers that make cylinder form series connection also are provided, thus the delivery pressure of cylinder is doubled, required pressure when satisfying welding, raising welding quality.Though upper, middle and lower three pores are arranged on the cylinder liner of this cylinder, this three pore promptly is that inlet hole is again an air outlet hole, does not have fixing separately inlet hole, gas is mixed interfere with each other, and also need provide bigger air demand simultaneously.

Summary of the invention

Technical problem to be solved in the utility model is: a kind of single action times strength cylinder is provided, can only be few from a direction air inlet and gas consumption, the delivery pressure of cylinder doubles and the manufacturing efficiency height, and the rear cylinder of stopping the supple of gas or steam can automatically reset, and improves welding quality, long service life.

The technical scheme in the invention for solving the above technical problem is: single action times strength cylinder, by preceding, one end of back cylinder barrel is connected with link, its the other end with before, bonnet connects, and use pull bar, pull-rod nut, before bolt is incited somebody to action, bonnet, support is fixed into band piston air cavity E, the integral body of F, be fixed with seal ring, the secondary piston of secondary piston bar and piston air cavity E are sliding to be joined, be fixed with seal ring, the back piston of back piston bar and piston air cavity F be sliding join form, also be with spring on the described secondary piston bar, there is through hole to form air cavity G in the middle of the described back piston bar, relief opening R2 is arranged on the described protecgulum, suction port P is arranged on the described bonnet, described before, relief opening R1 is arranged between back cylinder barrel and link.

Compared with prior art, advantage of the present utility model is: upper cover of piston rod has spring before this, and the secondary piston bar can automatically reset under the effect of spring after stopping air inlet, and operating rate is fast, efficient is high.The annular row gas port R1 of the suction port P on the bonnet, the relief opening R2 on the protecgulum, forward and backward cylinder barrel jointing place has simple function, special-purpose into and out of pore, the inlet, outlet functional separation is not mixed hand over together, so gas consumption noiseless, that loss of energy makes full use of this cylinder is little, energy-conservation.Bearing and buffer shaft, buffer ring are installed on forward and backward piston rod, forward and backward piston are operated steadily, resistance is little, do not have bump, thereby guarantee the stable working life that prolongs cylinder again of welding quality.Air cavity is arranged in the middle of the back piston bar, and cylinder ventilation air inlet can enter rear gas chamber and the back piston bar promotes back piston with the time-division two-way, is promoted by the back piston bar that its power of secondary piston is big, speed is fast again, and energy is fully used.

Description of drawings

Fig. 1, sectional view of the present utility model (off working state).

Fig. 2, structural representation of the present utility model.

Fig. 3, sectional view of the present utility model (working state).

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

The front and back ends of forward and backward

cylinder barrel

6,14 respectively with the protecgulum 5 that has relief opening R2, have bonnet 19 drive fits of suction port P.

Link 12 has four uniform vents for the middle stepped shaft that shoulder hole is arranged on one end periphery.

Back, the front end of forward and backward cylinder barrel all fasten on the link 12 that has O RunddichtringO 11, and form the relief opening R1 of annular in the joint and communicate with vent on the link.

The rear end of forward and backward

piston rod

2,13 is tightly fixed with forward and backward

piston

8,15 respectively and links into an integrated entity.Have the secondary piston 8 of seal ring 9, wear ring 10 and have the back piston 15 of seal ring 9, be slidingly matched with forward and backward

cylinder barrel

6,14 respectively, and form piston air cavity E and piston air cavity F.

Also be with spring 7 on the secondary piston bar 2, be connected with bearing 4, protecgulum 5 endoporus places are connected with dust ring 3, be connected with buffer ring 18 in the groove of bonnet 19 openings, have through hole to form air cavity G in the middle of the step-like back piston bar 13, the threaded end of back piston bar is connected with buffer shaft 17, O RunddichtringO 16 and cooperates with back piston 15.

Four-pull-rod 21 connects into integral body with forward and backward

lid

5,19 respectively, and supporting frame 20 and bonnet is linked into an integrated entity with four bolts 23 at bonnet 19 places, as shown in Figure 3 by the pull-rod nut 22 at two ends.

Threaded end at secondary piston bar 2 also is connected with nut 1.

During use, as initial phase diagram 1 cylinder no-output, when cylinder is ventilated, gas enters in bonnet 19 chambeies from the suction port P on the bonnet 19, wherein a part of air inlet enters the air cavity G in the back piston bar 13, promoting back piston 15 drive back piston bars 13 under the effect of air-inlet cavity H air pressure travels forward, meanwhile the gas of air cavity G also moves forward in the back piston bar 13, promoting secondary piston 8 moves forward, while piston air cavity E, gas in the F is by R1, the R2 relief opening is discharged, make secondary piston bar 2 produce double pressure, the thrust that overcomes spring 7 travels forward and carries out welding processing, as shown in Figure 2.

Work as completion of processing, when turning off source of the gas, the P suction port does not have air inlet, and then secondary piston bar 2 automatically resets under spring 7 power effects and is returned to original state, as shown in Figure 1.

Claims

1, a kind of single action times strength cylinder, by preceding, back cylinder barrel (6), (14) a end is connected with link (12), its the other end with before, bonnet (5), (19) connect, and with pull bar (21), pull-rod nut (22), before bolt (23) is incited somebody to action, bonnet, support (20) is fixed into band piston air cavity E, the integral body of F, be fixed with seal ring (9), the secondary piston (8) of secondary piston bar (2) is joined with piston air cavity E is sliding, be fixed with seal ring (9), the back piston (19) of back piston bar (13) and piston air cavity F be sliding join form, it is characterized in that also being with on the described secondary piston bar (2) spring (7), there is through hole to form air cavity G in the middle of the described back piston bar (13), described protecgulum has relief opening R2 on (5), described bonnet has suction port P on (19), described before, back cylinder barrel (6), (14) and between link (12) relief opening R1 is arranged.

2, single action according to claim 1 times strength cylinder is characterized in that link (12) for the middle stepped shaft that shoulder hole is arranged, has four uniform vents to communicate with relief opening R1 on the end periphery.

3, single action according to claim 1 times strength cylinder is characterized in that the threaded end of back piston bar (13) is connected with buffer shaft (17), O RunddichtringO (16), is connected with bearing (4) on the secondary piston bar (2).

4, single action according to claim 1 times strength cylinder is characterized in that being connected with buffer ring (18) in the groove of bonnet (19) opening, protecgulum (5) endoporus place is connected with dust ring (3).

5, single action according to claim 1 times strength cylinder is characterized in that also being connected with on the secondary piston (8) wear ring (10).