CN217728604U - Special tool for re-assembling piston type pneumatic actuator - Google Patents

Abstract

The utility model relates to a piston pneumatic actuator reinstallation specialized tool. At present, the used shaft seal overflow adjusting door is different from other pneumatic doors, the newly-installed sealing ring has complete size, is soft and has enough elasticity, enough friction force is formed between the newly-installed sealing ring and the inner wall of an air chamber, and enough force is needed to overcome the friction force generated by a five-stage sealing ring in order to be installed in place again. The utility model provides a piston pneumatic actuator reinstalls specialized tool, its constitution includes: the steel ring is characterized by comprising full-wire long bolts (1), a round steel ring (2) and channel steel (3), wherein two sides of the round steel ring are connected with supporting plates (4), two round holes which are the same in inner diameter size and symmetrical in center are respectively formed in the supporting plates and the channel steel, and the full-wire long bolts respectively penetrate through the round holes in the channel steel and the supporting plates; the side of the full-thread long bolt is respectively screwed with a full-thread nut A (5) and a full-thread nut B (6), wherein the full-thread nut A is arranged above the supporting plate, and the full-thread nut B is arranged below the channel steel. The utility model discloses be applied to the thermoelectricity field.

Description

Special tool for re-assembling piston type pneumatic actuator

The technical field is as follows:

the utility model relates to a piston pneumatic actuator reinstalls specialized tool.

Background art:

in the field of thermoelectricity, the health condition of a rod and a universal joint of a large-machine LVDT displacement sensor and a small-machine LVDT is required to be checked regularly. And executing countermeasures, newly adding a pressure transmitter of the large-machine alternating-current lubricating oil pump, and eliminating the defect that the interlocking test oil pump is not in linkage starting. When the machine side equipment of the #6 machine set is inspected and passes through the shaft seal overflow valve, the condition that an air source leaks from the bottom of the pneumatic valve can occur, and the diaphragm of the pneumatic actuator is aerated and needs to be disassembled for maintenance.

At present, the shaft seal overflow adjusting valve is different from other pneumatic valves, an imported VALTEK product is adopted, the structure of the shaft seal overflow adjusting valve is completely different from that of a conventional pneumatic actuator, a spring is arranged in a pneumatic valve cover cap but a diaphragm is not arranged, the pneumatic valve cover cap is provided with two rotary discs, five sealing rings are respectively installed at different positions in a progressive mode, the bottom of an air chamber is fixed by an O-shaped clamping ring with extremely high elasticity, namely the sealing principle is realized by the sealing ring instead of the traditional diaphragm. Meanwhile, the newly-installed sealing ring is complete in size, soft and elastic, enough friction force is formed between the newly-installed sealing ring and the inner wall of the air chamber, and enough force is needed to overcome the friction force generated by the five-stage sealing ring in order to be installed in place again. Therefore, special tools and enough force are needed in the disassembling process, and multiple persons are required to cooperate with each other to realize the disassembling goal.

The invention content is as follows:

the utility model aims at providing a piston pneumatic actuator reinstallation specialized tool.

The above purpose is realized by the following technical scheme:

the utility model provides a piston pneumatic actuator reinstalls specialized tool, its constitution includes: the steel ring is characterized by comprising full-wire long bolts, a circular steel ring and channel steel, wherein two sides of the circular steel ring are connected with supporting plates, two circular holes which are the same in inner diameter size and symmetrical in center are respectively formed in the supporting plates and the channel steel, and the full-wire long bolts respectively penetrate through the circular holes in the channel steel and the supporting plates;

the side of the full-thread long bolt is respectively screwed with a full-thread nut A and a full-thread nut B, wherein the full-thread nut A is arranged above the supporting plate, and the full-thread nut B is arranged below the channel steel;

and a gasket is arranged between the channel steel and the full-thread nut B, and an anti-skid pad is arranged at the end part of the channel steel.

The piston type pneumatic actuator is a special tool for assembling, the anti-skid pad on the channel steel is contacted with the actuator body cylinder body, so that the channel steel is used as a stressed fixed end;

the circular steel ring is sleeved at the piston type moving end of the actuator body.

The special tool for the re-assembly of the piston type pneumatic actuator is characterized in that the channel steel can adopt an angle steel or round steel structure.

The utility model has the advantages that:

1. the utility model discloses a circular contact stress surface that can even atress, its circular steel ring edge part symmetry extends the backup pad of two enough intensity as the stress point, full silk long bolt through two enough intensities and the channel-section steel (angle steel, the round steel all can) of a enough intensity are connected, the channel-section steel end adds slipmat and the contact of executor body position, as the stiff end atress, through two full silk bolts of evenly screwing gradually, draw close between circular steel and the channel-section steel, thereby make the executor piston remove the end and tightly combine with executor body cylinder body gradually, will remove end and cylinder body and link together with former dress fixed screw, the repacking work is accomplished.

2. The utility model discloses a this specialized tool, the purpose provides the stable high strength pulling force of controllable for overcome the flexible elasticity that new sealing washer deformation produced, but fundamentally prevents the airtight air chamber and the personnel injury that the in-process caused because of sideslipping and the apparatus fracture of reinstallation. Such piston-type pneumatic actuators are used in more than a hundred applications at texas power plants.

3. The utility model discloses have extensive range of application, still can expand electric actuator according to different needs in the motor coil repacking technology of taking one's place, various model electric actuator have more than 5000 in tezhou power plant, according to this specialized tool design principle, all can use after the adjustment not unidimensional, practical value is very high.

4. The utility model discloses make repacking work become unusual smooth, not only guaranteed installation quality, also furthest's assurance operation in-process personnel's safety.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a schematic structural diagram of the present invention.

In the figure: 1. full-wire long bolt, 2, circular steel ring, 3, channel-section steel, 4, backup pad, 5, full-wire nut A,6, full-wire nut B,7, gasket, 8, slipmat, 9, executor body cylinder body, 10, the piston of executor body remove end, 11, fixed screw.

The specific implementation mode is as follows:

example 1:

the utility model provides a piston pneumatic actuator reinstalls specialized tool, its constitution includes: the steel ring is characterized by comprising full-wire long bolts 1, a round steel ring 2 and channel steel 3, wherein two sides of the round steel ring are connected with supporting plates 4, two round holes which are the same in inner diameter size and symmetrical in center are formed in the supporting plates and the channel steel respectively, and the full-wire long bolts penetrate through the round holes in the channel steel and the supporting plates respectively; the side of the full-thread long bolt is respectively screwed with a full-thread nut A5 and a full-thread nut B6, wherein the full-thread nut A is arranged above the supporting plate, and the full-thread nut B is arranged below the channel steel; and a gasket 7 is arranged between the channel steel and the full-wire nut B, and an anti-skid pad 8 is arranged at the end part of the channel steel. The adoption can evenly be atred circular contact stress surface, and its circular steel ring edge part symmetry extends the backup pad of two enough intensity as the stress point, and full silk long bolt through two enough intensities is connected with a channel-section steel (angle steel, round steel homoenergetic) of enough intensity, and the channel-section steel end adds slipmat and executor body position contact, as the stiff end atress. The controllable stable high-strength tension is used for overcoming the flexible elasticity generated by the deformation of a new sealing ring, and the damage to a closed air chamber and personnel caused by sideslip and instrument fracture in the process of reassembly can be fundamentally prevented.

Example 2:

according to the tool special for reassembling the piston type pneumatic actuator, disclosed by the embodiment 1, the anti-skidding pad on the channel steel is in contact with the actuator body cylinder body 9, so that the channel steel is used as a stressed fixed end; the circular steel ring is sleeved at the piston type moving end 10 of the actuator body. The cylinder shell can be sleeved with a circular steel ring, a full-wire long bolt is added, channel steel with enough strength is added at the end of the actuator body, 2 round holes with the same inner diameter and central symmetry are formed in the two ends of the full-wire long bolt and the two ends of the channel steel and are connected through a full-wire screw rod, and a new sealing ring is enabled to be uniformly deformed and reset through a screw in a screwing-in nut.

Claims (3)

1. The utility model provides a piston pneumatic actuator reinstalls specialized tool which characterized by: the composition comprises: the steel ring is characterized by comprising full-wire long bolts, a circular steel ring and channel steel, wherein two sides of the circular steel ring are connected with supporting plates, two circular holes which are the same in inner diameter size and symmetrical in center are respectively formed in the supporting plates and the channel steel, and the full-wire long bolts respectively penetrate through the circular holes in the channel steel and the supporting plates;

a full-thread nut A and a full-thread nut B are screwed into two sides of the full-thread long bolt respectively, wherein the full-thread nut A is installed above the supporting plate, and the full-thread nut B is installed below the channel steel;

and a gasket is arranged between the channel steel and the full-thread nut B, and an anti-skid pad is arranged at the end part of the channel steel.

2. The special tool for the piston type pneumatic actuator refitting of claim 1, wherein: the anti-skid pad on the channel steel is contacted with the cylinder body of the actuator body, so that the channel steel is used as a stressed fixed end;

the circular steel ring is sleeved at the piston type moving end of the actuator body.

3. The special tool for the piston type pneumatic actuator refitting of claim 2, wherein: the channel steel can adopt an angle steel or round steel structure.

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