CN209430837U - A kind of push type hydraulic executer - Google Patents

Abstract

The utility model discloses a kind of push type hydraulic executers, including cylinder body, tail-hood, cylinder cap, piston, push rod, crank, shaft, connector sleeve, valve and cover plate assembly, it is characterized in that, tail-hood O-ring and cylinder cap O-ring are respectively equipped between cylinder body and tail-hood and cylinder cap, cylinder body, enclosed construction is formed between tail-hood and cylinder cap three, the first Y-shaped ring is successively arranged between inboard wall of cylinder block and piston, wear-resisting supporting part and the second Y-shaped ring, one end of push rod is fixedly connected with piston by round nut, the connection of the other end and crank of push rod is adjusted by adjusting nut and link block, link block is flexibly connected by connecting pin and the second circlip with crank, the connection of crank and shaft is fixed by flat key；The utility model uses piston multi-stage sealed and the oil cylinder of enclosed construction, thus guarantee the operation of actuator and the adjusting of valve, opening and closing, the service life of extension actuator and valve.

Description

A kind of push type hydraulic executer

Technical field

The utility model relates to the driving device of valve, in particular to a kind of push type hydraulic executers.

Background technique

In industries such as petroleum, natural gas, chemical industry, the hydraulic executer of valve for various mesohigh valve opening and closings has two Kind, one is straight stroke valve actuators, do executing agency by hydraulic cylinder, realize and move back and forth；Another kind is angular travel valve Actuator does executing agency by hydraulic motor, realizes rotary motion；And straight stroke valve actuator is commonly used at present, it is by valve Actuator controls two indoor oil pressure of working chamber by a reversal valve to drive piston rod, to realize the closing of valve Or it opens.

There are sealing problems for existing actuator, cause oil pressure insufficient due to leaking, actuator is caused not to be able to satisfy valve Opening and closing requirement and hydraulic oil pollution, the regulation performance and stability of actuator directly influence the adjusting of valve, opening and closing.

Utility model content

It is multi-stage sealed and closed using piston the purpose of this utility model is to provide a kind of push type hydraulic executer The oil cylinder of structure extends the service life of actuator and valve to guarantee the operation of actuator and the adjusting of valve, opening and closing.

The utility model in order to solve the above technical problems, adopts the following technical scheme that a kind of push type hydraulic executer, packet Include cylinder body, the tail-hood set on cylinder body both ends and cylinder cap, set on the intracorporal piston of cylinder, through the push rod and push rod of piston and cylinder cap The crank of connection, the shaft connecting with crank are connected with the rotating shaft connector sleeve, the valve connecting with connector sleeve and are used to support cylinder The cover plate assembly of body is respectively equipped with tail-hood O-ring and cylinder cap O-ring, institute between the cylinder body and the tail-hood and the cylinder cap It states and forms enclosed construction between cylinder body, the tail-hood and the cylinder cap three, successively set between the inboard wall of cylinder block and piston There are the first Y-shaped ring, wear-resisting supporting part and the second Y-shaped ring, one end of the push rod is fixedly connected with the piston by round nut, The connection of the other end of the push rod and the crank is adjusted by adjusting nut and link block, and the link block passes through connecting pin It is flexibly connected with the second circlip with the crank, the crank and the connection of the shaft are fixed by flat key.

Using above technical scheme, the utility model is had the advantage that

The utility model is using multi-sealed, double O-rings, double-Y shaped circle and wear-resisting supporting part, gray iron, tail-hood composition Enclosed construction, significantly guarantee sealing performance, meet the opening and closing requirement of valve, also prevent hydraulic oil pollution；The adjusting of setting Nut can be adjusted the stroke of push rod, so as to adjust the opening and closing angle of valve；Crank is connect with shaft by flat key, is promoted Rotational stabilization guarantees valve opening and closing performance.

It is close that multilayer is equipped with as advanced optimizing for the utility model, between the push rod and the piston and the cylinder cap Seal.

Using above technical scheme, the setting of multi-layer sealed circle is further ensured that sealing performance.

As advanced optimizing for the utility model, the tail-hood is equipped with adjusting screw rod and lock-nut, the adjusting One end of screw rod runs through the tail-hood and puts in the inner cavity of the cylinder body, is equipped between the lock-nut and the tail-hood hydraulic Sealing ring.

Using above technical scheme, adjusting screw rod plays the role of limit to piston, adjusts the stroke of push rod, so as to adjust The opening and closing angle of valve.

As advanced optimizing for the utility model, the cover plate assembly includes upper cover plate and lower cover plate, the upper cover plate The positioning pin for cylinder body positioning is equipped with the lower cover plate.

As advanced optimizing for the utility model, between the upper cover plate and the lower cover plate by the first supporting element, Second supporting element and third supports support, and fixed by the first nut, the second nut and third nut.

As advanced optimizing for the utility model, it is respectively equipped between the upper cover plate and the lower cover plate and shaft Bushing and lower bushing, the upper cover plate is run through in shaft one end, and is positioned by circular gasket and the first circlip.

Using above technical scheme, upper cover plate, lower cover plate the mode that is connected and fixed be Quick Release mounting means, therefore convenient for flat When maintenance, replacement；On the one hand the setting of upper bushing, lower bushing plays the role of positioning to shaft, on the other hand extend shaft Service life.

Detailed description of the invention

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

Fig. 2 is the top view of the utility model.

In figure: 1, first supporting element, 2, tail-hood, 3, tail-hood O-ring, 4, cylinder body, 5, round nut, the 6, first Y-shaped ring, 7, resistance to Grind supporting part, the 8, second Y-shaped ring, 9, cylinder cap O-ring, the 10, second supporting element, 11, adjusting nut, 12, link block, 13, adjusting Screw rod, 14, lock-nut, 15, hydraulic sealing ring, 16, push rod, 17, cylinder cap, 18, third supporting element, the 19, first circlip, 20, Circular gasket, 21, upper bushing, 22, crank, the 23, second circlip, 24, connecting pin, 25, flat key, 26, lower bushing, 27, connector sleeve, 28, third nut, 29, enclosed construction, the 30, first nut, 31, positioning pin, 32, upper cover plate, 33, lower cover plate.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As depicted in figs. 1 and 2, in this specific embodiment, the utility model provides a kind of push type hydraulic executer, Including cylinder body 4, the tail-hood 2 set on 4 both ends of cylinder body and cylinder cap 17, the piston in cylinder body 4, pushing away through piston and cylinder cap 17 Bar 16, the shaft connecting with crank 22, is connected with the rotating shaft connector sleeve 27 and connector sleeve 27 at the crank 22 connecting with push rod 16 The valve of connection and the cover plate assembly for being used to support cylinder body 4, which is characterized in that the cylinder body 4 and the tail-hood 2 and the cylinder cap Tail-hood O-ring 3 and cylinder cap O-ring 9 are respectively equipped between 17, between 17 three of the cylinder body 4, the tail-hood 2 and the cylinder cap Enclosed construction 29 is formed, is successively arranged the first Y-shaped ring 6, wear-resisting supporting part 7 and the 2nd Y between 4 inner wall of cylinder body and piston Type circle 8, one end of the push rod 16 are fixedly connected with the piston by round nut 5, the other end of the push rod 16 with it is described The connection of crank 22 is adjusted by adjusting nut 11 and link block 12, and the link block 12 passes through connecting pin 24 and the second circlip 23 It is flexibly connected with the crank 22, the crank 22 and the connection of the shaft are fixed by flat key 25.

With the above arrangement, the present embodiment is using multi-sealed, double O-rings, double-Y shaped circle and wear-resisting supporting part 7, cylinder body 4, Cylinder cap 17, tail-hood 2 constitute enclosed construction 29, significantly guarantee sealing performance, meet the opening and closing requirement of valve, also prevent hydraulic Oily pollution；The adjusting nut 13 of setting can be adjusted the stroke of push rod 16, so as to adjust the opening and closing angle of valve；Crank 22 It is connect with shaft by flat key 25, promotes rotational stabilization, guarantee valve opening and closing performance.

Further, multi-layer sealed circle is equipped between the push rod 16 and the piston and the cylinder cap 17；Multi-layer sealed circle Setting be further ensured that sealing performance.

Further, the tail-hood 2 is equipped with adjusting screw rod 13 and lock-nut 14, and one end of the adjusting screw rod 13 is run through The tail-hood 2 and the inner cavity for putting in the cylinder body 4 are equipped with hydraulic sealing ring 15 between the lock-nut 14 and the tail-hood 2； Adjusting screw rod 13 plays the role of limit to piston, the stroke of push rod 16 is adjusted, so as to adjust the opening and closing angle of valve.

Further, the cover plate assembly includes upper cover plate 32 and lower cover plate 33, the upper cover plate 32 and the lower cover plate 33 It is equipped with the positioning pin 31 for the cylinder body 4 positioning, passes through the first support between the upper cover plate 32 and the lower cover plate 33 Part 1, the second supporting element 10 and third supporting element 18 support, and fixed by the first nut 30, the second nut and third nut 28, Upper bushing 21 and lower bushing 26 are respectively equipped between the upper cover plate 32 and the lower cover plate 33 and shaft, institute is run through in shaft one end Upper cover plate 32 is stated, and is positioned by circular gasket 20 and the first circlip 19；Upper cover plate 32, lower cover plate 33 the mode that is connected and fixed be Quick Release mounting means, therefore convenient for maintenance, replacement usually；On the one hand the setting of upper bushing 21, lower bushing 26 is played shaft On the other hand the effect of positioning extends the service life of shaft.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of push type hydraulic executer including cylinder body (4), the tail-hood (2) set on cylinder body (4) both ends and cylinder cap (17), is set In piston, the push rod (16) for running through piston and cylinder cap (17), the crank (22) being connect with push rod (16) and song in cylinder body (4) The shaft of handle (22) connection is connected with the rotating shaft connector sleeve (27), the valve connecting with connector sleeve (27) and is used to support cylinder body (4) cover plate assembly, which is characterized in that be respectively equipped with tail between the cylinder body (4) and the tail-hood (2) and the cylinder cap (17) Lid O-ring (3) and cylinder cap O-ring (9) form envelope between the cylinder body (4), the tail-hood (2) and the cylinder cap (17) three Closed type structure (29), the cylinder body (4) are successively arranged the first Y-shaped ring (6), wear-resisting supporting part (7) and between inner wall and piston Two Y-shaped rings (8), one end of the push rod (16) are fixedly connected with the piston by round nut (5), the push rod (16) it is another The connection of one end and the crank (22) is adjusted by adjusting nut (11) and link block (12), and the link block (12) passes through company Outbound (24) and the second circlip (23) are flexibly connected with the crank (22), and the crank (22) and the connection of the shaft pass through Flat key (25) is fixed.

2. a kind of push type hydraulic executer according to claim 1, which is characterized in that the push rod (16) and the work Multi-layer sealed circle is equipped between plug and the cylinder cap (17).

3. a kind of push type hydraulic executer according to claim 1, which is characterized in that the tail-hood (2), which is equipped with, adjusts Screw rod (13) and lock-nut (14) are saved, one end of the adjusting screw rod (13) through the tail-hood (2) and puts in the cylinder body (4) inner cavity is equipped with hydraulic sealing ring (15) between the lock-nut (14) and the tail-hood (2).

4. a kind of push type hydraulic executer according to claim 1, which is characterized in that the cover plate assembly includes upper cover Plate (32) and lower cover plate (33), the upper cover plate (32) and the lower cover plate (33) are equipped with for the cylinder body (4) positioning Positioning pin (31).

5. a kind of push type hydraulic executer according to claim 4, which is characterized in that the upper cover plate (32) with it is described By the first supporting element (1), the second supporting element (10) and third supporting element (18) support between lower cover plate (33), and pass through first Nut (30), the second nut and third nut (28) are fixed.

6. a kind of push type hydraulic executer according to claim 4 or 5, which is characterized in that the upper cover plate (32) and Upper bushing (21) and lower bushing (26) are respectively equipped between the lower cover plate (33) and shaft, the upper cover plate is run through in shaft one end (32), it and by circular gasket (20) and the first circlip (19) positions.