CN212791503U - Commutator of high-pressure airless spraying machine - Google Patents

Abstract

The utility model discloses a high-pressure airless sprayer commutator, including the switching-over plunger, the left end of switching-over plunger is connected with hydraulic pressure plunger through the signal extension pole, the fixed cover in switching-over plunger periphery is equipped with the switching-over piston, switching-over plunger periphery cover is equipped with fixed casing, the periphery fixedly connected with shell of fixed casing, the switching-over piston slides and sets up inside fixed casing, a plurality of first oilholes and second oilhole have been seted up on the shell, first oilhole and second oilhole distribute in the left and right sides of switching-over piston, the utility model discloses simple structure, the connection of each part is stable, and motion conduction sensitivity is high, long service life.

Description

Commutator of high-pressure airless spraying machine

Technical Field

The utility model relates to a plunger pump technical field specifically is high-pressure airless sprayer commutator.

Background

A spray coater is a special coating device adopting a spray coating technology, and the principle is to control airflow to instantly push a gas distribution reversing device to reverse, so that a piston of a pneumatic motor can stably and continuously reciprocate. The plunger pump is an important component in the spray coater, and the plunger pump can change the volume of a sealed working cavity to absorb and press oil by means of the reciprocating motion of the plunger in a cylinder body. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like. The reversing plunger assembly is an important assembly in the plunger pump, but the existing reversing plunger assembly mostly has the problems of complex structure, short service life and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-pressure airless sprayer commutator to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the commutator of the high-pressure airless spraying machine comprises a reversing plunger, wherein the left end of the reversing plunger is connected with a hydraulic plunger through a signal connecting rod, a reversing piston is fixedly sleeved on the periphery of the reversing plunger, a fixed shell is sleeved on the periphery of the reversing plunger, an outer shell is fixedly connected to the periphery of the fixed shell, the reversing piston is slidably arranged inside the fixed shell, a plurality of first oil holes and second oil holes are formed in the outer shell, and the first oil holes and the second oil holes are distributed on the left side and the right side of the reversing piston.

Preferably, the periphery of the hydraulic plunger is fixedly sleeved with a hydraulic piston, and the periphery of the hydraulic piston is sleeved with a piston ring.

Preferably, a compression nut is arranged at the right end of the hydraulic plunger, and the compression nut is fixedly sleeved on the periphery of the signal connecting rod.

Preferably, the left end of signal joint pole extends to inside the hydraulic pressure plunger, turn right from a left side in proper order and be equipped with fixation nut and bulge loop in the signal joint pole periphery, the bulge loop sets up at the gland nut left end, be connected with the spring between bulge loop and the fixation nut, the spring suit is in the signal joint pole periphery.

Preferably, the right end of the reversing plunger is provided with a locknut, the right end of the signal joint rod penetrates through the reversing plunger, and the locknut is fixedly sleeved on the periphery of the signal joint rod.

Preferably, the right end in the shell is provided with a buffer gasket opposite to the signal connecting rod.

Compared with the prior art, the beneficial effects of the utility model are that: the reversing plunger piston is manufactured by adopting a high-frequency sealing heat treatment process, has higher mechanical strength, effectively reduces the abrasion influence caused by high-frequency operation of parts, and prolongs the service life of the assembly; by arranging the spring, when displacement is generated between the signal connecting rod and the hydraulic plunger, the spring plays a role in buffering, the reversing sensitivity is improved, and abrasion caused by collision between components is reduced; the buffer washer is arranged to play a role in buffering, and the signal connecting rod is prevented from directly impacting the shell to cause abrasion. The utility model discloses simple structure, the connection of each part is stable, and motion conduction sensitivity is high, long service life.

Drawings

FIG. 1 is a schematic structural diagram of a commutator of a high-pressure airless sprayer;

FIG. 2 is a schematic diagram of the internal structure of the commutator of the airless sprayer.

In the figure: the hydraulic control device comprises a 1-reversing plunger, a 2-signal connecting rod, a 3-hydraulic plunger, a 4-fixed shell, a 5-shell, a 6-reversing piston, a 7-first oil hole, a 8-second oil hole, a 9-hydraulic piston, a 10-piston ring, a 11-gland nut, a 12-convex ring, a 13-fixed nut, a 14-spring and a 15-locknut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: high-pressure airless sprayer commutator, including switching-over plunger 1, the left end of switching-over plunger 1 links up pole 2 through the signal and is connected with hydraulic pressure plunger 3, the fixed cover in switching-over plunger 1 periphery is equipped with reversing piston 6, the fixed casing 4 of switching-over plunger 1 periphery cover, the periphery fixedly connected with shell 5 of fixed casing 4, reversing piston 6 slides and sets up inside fixed casing 4, a plurality of first oilholes 7 and second oilhole 8 have been seted up on shell 5, first oilhole 7 and second oilhole 8 distribute in the left and right sides of reversing piston 6, and the switching-over plunger adopts the manufacturing of high frequency seal heat treatment technology, has higher mechanical strength, has effectively reduced the wearing and tearing influence that the part high frequency operation brought, improves subassembly life.

The periphery of the hydraulic plunger 3 is fixedly sleeved with a hydraulic piston 9, and the periphery of the hydraulic piston 9 is sleeved with a piston ring 10.

And a compression nut 11 is arranged at the right end of the hydraulic plunger 3, and the compression nut 11 is fixedly sleeved on the periphery of the signal joint rod 2.

The left end of signal joint pole 2 extends to inside 3 hydraulic ram, turn right from a left side in proper order that the periphery of signal joint pole 2 is equipped with fixation nut 13 and bulge loop 12, bulge loop 12 sets up at gland nut 11 left end, be connected with spring 14 between bulge loop 12 and the fixation nut 13, spring 14 suit is in the periphery of signal joint pole 2, and through setting up spring 14, when producing the displacement between signal joint pole 2 and hydraulic ram 3, play the cushioning effect through spring 14, improve switching-over sensitivity, reduce the wearing and tearing that the collision produced between the part.

The right end of the reversing plunger piston 1 is provided with a locknut 15, the right end of the signal joint rod 2 penetrates through the reversing plunger piston 1, and the locknut 15 is fixedly sleeved on the periphery of the signal joint rod 2.

The right end in the shell 5 is provided with a buffer gasket 16 right opposite to the signal connecting rod 2, and the buffer gasket 16 is arranged to play a buffer role, so that the signal connecting rod 2 is prevented from directly impacting the shell 5 to cause abrasion.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. High-pressure airless sprayer commutator, including switching-over plunger (1), its characterized in that: the left end of switching-over plunger (1) links up pole (2) through the signal and is connected with hydraulic pressure plunger (3), the fixed cover in switching-over plunger (1) periphery is equipped with reversing piston (6), switching-over plunger (1) periphery cover is equipped with fixed casing (4), the periphery fixedly connected with shell (5) of fixed casing (4), reversing piston (6) slide and set up inside fixed casing (4), a plurality of first oilholes (7) and second oilhole (8) have been seted up on shell (5), first oilhole (7) and second oilhole (8) distribute in the left and right sides of reversing piston (6).

2. The high-pressure airless sprayer commutator according to claim 1, characterized in that: the hydraulic plunger (3) is fixedly sleeved with a hydraulic piston (9) in the periphery, and a piston ring (10) is sleeved on the periphery of the hydraulic piston (9).

3. The high-pressure airless sprayer commutator according to claim 1, characterized in that: the right end of the hydraulic plunger (3) is provided with a compression nut (11), and the compression nut (11) is fixedly sleeved on the periphery of the signal connecting rod (2).

4. The high-pressure airless sprayer commutator according to claim 3, characterized in that: the left end of signal joint pole (2) extends to inside hydraulic pressure plunger (3), turn right from a left side and fix the cover in proper order and be equipped with fixation nut (13) and bulge loop (12) signal joint pole (2) periphery, bulge loop (12) set up at gland nut (11) left end, be connected with spring (14) between bulge loop (12) and fixation nut (13), spring (14) suit is in signal joint pole (2) periphery.

5. The high-pressure airless sprayer commutator according to claim 4, characterized in that: the reversing plunger (1) is provided with locknut (15) at the right end, the right end of signal joint pole (2) runs through reversing plunger (1), locknut (15) fixed suit is in signal joint pole (2) periphery.

6. The high-pressure airless sprayer commutator according to claim 1, characterized in that: and a buffer gasket (16) which is right opposite to the signal connecting rod (2) is arranged at the right end in the shell (5).

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