CN203228166U - Piston pump valve seat extractor - Google Patents

Abstract

The utility model relates to a plunger pump disk seat extractor, constitute by flowing back spring holder checkpost and pull-out mechanism, flowing back spring holder checkpost is connected two cards by the connecting axle and is constituteed, flowing back spring holder checkpost rear portion draw-in groove links to each other with the lead screw head, there is positioner inside the flowing back spring holder, pull-out mechanism is by the lead screw, the bottom plate, and a support, the copper sheathing, a bearing, hand wheel and gland nut etc. constitute, bottom plate and support threaded connection, the lead screw passes through the centre bore of bottom plate, set up the locating hole on the bottom plate, the copper sheathing is threaded connection with the lead screw, the hand wheel passes through key fixed connection by first keyway and second keyway with the copper sheathing, a bearing, the hand wheel passes through gland nut. The utility model discloses the extractor is used for the operation of taking out of plunger pump disk seat.

Description

Piston pump valve seat extractor

technical field

The utility model relates to a maintenance tool for a hydraulic end of a plunger pump, in particular to a valve seat extractor for a plunger pump.

Background technique

The valve seat is the core component of the hydraulic end of the plunger pump. Due to the deformation of the cloth sealing rubber ring, the stickiness of the valve seat due to a small amount of oil in the conveying liquid, and the valve seat itself inside the liquid end, there is no good point of force, etc. , There is a problem that it is difficult to take out during the maintenance of the liquid end. When the valve seat is stuck, the following methods are often used to remove the valve seat:

1. Use the method of vigorously tapping, but sometimes this method does not work, and it will deform and damage the cloth rubber ring.

2. Disassemble the drain spring seat, and then take it out with a percussion valve extractor, but this method is time-consuming and laborious, and the operation stability is poor. Improper use may easily cause damage to the valve seat thread.

3. Use the method of tightening the screw of the drain spring seat with the sleeve wrench, and turn the whole valve seat to take it out. This method is not only laborious, but also deforms the drain spring seat.

Existing problems: Although the valve seat can be taken out by using the above methods, the actual operation will damage the valve seat and the discharge spring seat to varying degrees, and it is time-consuming and labor-intensive.

Utility model content

Aiming at the defects of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a plunger pump valve seat remover, which can remove the valve seat conveniently and quickly without damaging the cloth rubber and the drain spring seat.

In order to solve the above technical problems, the plunger pump valve seat extractor of the utility model is composed of a drain spring seat clip 1 and a pull-out mechanism, wherein the above liquid discharge spring seat clip 1 is composed of two cards 3 connected by a connecting shaft 2, The slot 5 at the rear of the drainage spring seat clamp 1 is connected to the lead screw head 6. There is a positioning device 4 inside the drainage spring clamp 1. The pull-out mechanism consists of a screw 7, a bottom plate 8, a screw 10, a bracket 11, a copper sleeve 12, The bearing 13, the hand wheel 14 and the compression nut 16 are composed of the base plate 8 and the bracket 11 fixedly connected by the screw 10, the lead screw 7 passes through the center hole 18 of the base plate 8, the lead screw 7 and the center hole 18 are clearance fit, the base plate 8 The positioning hole 9 is set on the top, the copper sleeve 12 is threadedly connected with the lead screw 7, the handwheel 14 and the copper sleeve 12 are fixedly connected by the first keyway 17 and the second keyway 19 through keys, and the copper sleeve 12, the bearing 13, and the handwheel 14 pass through The compression nut 16 on the copper sleeve 12 is fixedly connected with the bracket 11 .

As an improvement of the extractor of the present utility model, a handle 15 is installed on the hand wheel 14 .

Compared with the current technical solution, the utility model has the beneficial effect of the plunger pump valve seat extractor: the utility model extractor only needs to clamp the clip on the discharge spring seat, connect the pull-out mechanism at the back, and pull the pull-out mechanism After positioning, the valve seat can be easily taken out by turning the hand wheel, and a valve seat at the hydraulic end is short; the utility model extractor is stable, simple and convenient to operate, saves equipment maintenance time, reduces labor intensity of workers, and reduces personnel and device security risks.

Description of drawings

Fig. 1 is the structural representation of the valve seat extractor of the plunger pump of the present invention;

Fig. 2 is a sectional view along line A-A in Fig. 1;

Fig. 3 is a sectional view along line B-B in Fig. 1;

Fig. 4 is a sectional view along line C-C in Fig. 1;

Fig. 5 is a sectional view of the copper sleeve;

Figure 6 is a left view of the handwheel;

Figure 7 is a left side view of the bottom plate.

Detailed ways

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

As shown in Figure 1, the valve seat extractor of the plunger pump of the utility model is composed of two parts, the clip 1 of the discharge spring seat and the pull-out mechanism. The drain spring clip 1 is composed of a connecting shaft 2 connecting two cards 3, the front card 3 (as shown in Figure 2), and the rear card slot 5 (as shown in Figure 3). The pull-out mechanism consists of a lead screw 7, a bottom plate 8 (as shown in Figure 7), a bracket 11, a copper sleeve 12 (as shown in Figure 5), a bearing 13, a hand wheel 14 (as shown in Figure 6) and a compression nut 16 The bottom plate 8 and the bracket 11 are fixedly connected by screws 10, the lead screw 7 passes through the center hole 18 of the bottom plate 8, the lead screw 7 and the center hole 18 are clearance fit, the positioning hole 9 on the bottom plate 8 is pressed against the valve seat on the pump body The flange screw is a clearance fit, the copper sleeve 12 and the lead screw 7 are threaded, the handwheel 14 and the copper sleeve 12 are fixedly connected by the first keyway 17 and the second keyway 19 through keys, the copper sleeve 12, the bearing 13, and the handwheel 14 It is fixedly connected with the bracket 11 through the compression nut 16 on the copper sleeve 12 .

Open the card 3 at the front of the drain spring seat clip 1, clamp the drain spring seat clip 1 in the gap between the drain spring seat and the drain valve plate, and put the screw head 6 (as shown in Figure 4) into the drain spring seat clip 1. Rotate 90° counterclockwise in the slot 5 at the rear end, the screw head 6 is stuck on the positioning device 4, turn the handle 15 counterclockwise to position the positioning hole 9 of the bottom plate 8 on the valve seat compression flange screw, and continue to rotate counterclockwise Handle 15 can be pulled out valve seat.

Claims (2)

1. plunger displacement pump valve seat extractor, formed by discharge opeing spring base clamp (1) and exhaustion mechanism, it is characterized in that: described discharge opeing spring base clamp (1) is connected to form two cards (3) by connecting axle (2), discharge opeing spring base clamp (1) rear portion draw-in groove (5) links to each other with leading screw head (6), there is positioner (4) discharge opeing spring clip (1) inside, exhaustion mechanism is by leading screw (7), base plate (8), screw (10), support (11), copper sheathing (12), bearing (13), handwheel (14) and clamp nut (16) are formed, base plate (8) is fixedlyed connected by screw (10) with support (11), leading screw (7) passes through the centre bore (18) of base plate (8), leading screw (7) is matched in clearance with centre bore (18), locating hole (9) is set on the base plate (8), copper sheathing (12) and leading screw (7) are for being threaded, handwheel (14) is fixedlyed connected copper sheathing (12) with copper sheathing (12) by key with second keyway (19) by first keyway (17), bearing (13), handwheel (14) is fixedlyed connected with support (11) by the clamp nut (16) on the copper sheathing (12).

2. plunger displacement pump valve seat extractor according to claim 1 is characterized in that: the last handle (15) of installing of described handwheel (14).

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