Special tool for aligning crosshead of vertical plunger pump

Abstract

The utility model relates to the technical field of crosshead installation and alignment, in particular to a special tool for vertical plunger pump crosshead alignment, which comprises a base. The rear end of the base is fixedly connected with a pressing rod, the rear end of the pressing rod is provided with a lead screw, the outer surface of the lead screw is in threaded connection with the pressing nut, the front end of the pressing nut is provided with a locking nut, the locking nut is in threaded connection with the lead screw, and the rear position of the outer surface of the lead screw is in sliding connection with the top sleeve; the pressing nut is rotated on the lead screw, the top sleeve moves towards the opposite direction of the base, meanwhile, the sliding rod on the lead screw slides in the sliding groove in the top sleeve, the tool special for crosshead alignment is fastened, and the problems that a crowbar or a screwdriver pries the stress face of a crosshead slide way to conduct alignment, the working face of the crosshead slide way is prone to being damaged, and the working efficiency of the crosshead slide way is affected are solved. And the alignment data is not accurate enough, so that the reinstallation precision of the equipment is reduced, and the service life of the equipment is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cross head installation alignment technical field especially, a kind of vertical plunger pump cross head alignment special tool. BACKGROUND

[0002] High-pressure vertical plunger pump, vertical reciprocating compressor are widely used in oil refining chemical production device, these two kinds of equipment after long period operation, cross head slide wear, clearance exceeds standard, equipment in the process of operation, vibration, oil temperature exceeds standard, cross head slide shoe serious wear and tear etc.

[0003] High-pressure vertical plunger pump, vertical reciprocating compressor overhaul, usually need to pry or screwdriver from cross head slide force surface pry and carry out alignment, not only easy to damage cross head slide working surface, alignment data are not accurate enough, lead to reduce the back loading precision of equipment, further influence equipment service life.

[0004] Therefore, aiming at the above-mentioned problem that using pry or screwdriver from cross head slide force surface pry and carry out alignment, not only easy to damage cross head slide working surface, alignment data are not accurate enough, lead to reduce the back loading precision of equipment, further influence equipment service life, a vertical plunger pump cross head alignment special tool can be designed to quickly, accurately align high-pressure vertical plunger pump, vertical reciprocating compressor cross head, and not damage cross head slide. INVENTION CONTENTS

[0005] In order to overcome the problem that using pry or screwdriver from cross head slide force surface pry and carry out alignment, not only easy to damage cross head slide working surface, alignment data are not accurate enough, lead to reduce the back loading precision of equipment, further influence equipment service life.

[0006] The technical scheme of the utility model is as follows: a vertical plunger pump cross head alignment special tool, including base, further including pressure nut and top sleeve, the rear end of base is fixedly connected with pressure rod, the rear end of pressure rod is provided with screw rod, the outer surface of screw rod is threadedly connected with pressure nut, the front end of pressure nut is provided with locking nut, locking nut is threadedly connected with screw rod, the outer surface of screw rod is slidably connected with top sleeve at rear position, the inside of top sleeve is respectively provided with sliding groove on upper side and lower side, the rear end of screw rod is fixedly connected with limit block, limit block is respectively fixedly connected with sliding block on upper side and lower side, sliding block is slidably connected with sliding groove.

[0007] Preferably, the base and the pressing rod are welded together by gas welding, and then the base end is abutted on the secondary stress surface of the cross head slide during use, the pressing nut is rotated on the lead screw, the top sleeve moves in the opposite direction of the base, the slide rod on the lead screw slides in the sliding groove on the top sleeve, the cross head alignment tool is fastened, the locking nut can be rotated to make the pressing nut and the top sleeve more stable, the base is made of copper alloy material, the pressing rod, the top sleeve and the lead screw are made of low carbon steel, and the pressing nut and the locking nut are made of 35CrMo.

[0008] Preferably, the inside of the pressing rod is provided with a hollow groove one, and the upper and lower sides of the pressing rod are respectively provided with a hollow groove two, and the inside of the hollow groove two is slidably connected with a slide rod.

[0009] Preferably, the inside of the pressing rod is movably connected with a top block, and the top block is fixedly connected with the lead screw.

[0010] Preferably, one end of the slide rod close to the top block is connected with a clamping block, and the upper and lower sides of the inside of the pressing rod are respectively fixedly connected with a plurality of springs.

[0011] Preferably, the spring is fixedly connected with the clamping block, and the upper and lower sides of the top block are respectively provided with a recess, and the recess is movably connected with the clamping block.

[0012] Preferably, the lower end of the top sleeve is fixedly connected with a tape box, the inside of the tape box is rotatably connected with a rotating rod, and the left end of the rotating rod is fixedly connected with a rotating block.

[0013] Preferably, the outer surface of the rotating rod is movably connected with a soft tape, the front end of the tape box is provided with a pulling block, and the pulling block is connected with the soft tape.

[0014] The utility model discloses a beneficial effect:

[0015] Through the base and the pressing rod are welded together by gas welding, and then the base end is abutted on the secondary stress surface of the cross head slide during use, the pressing nut is rotated on the lead screw, the top sleeve moves in the opposite direction of the base, the slide rod on the lead screw slides in the sliding groove on the top sleeve, the cross head alignment tool is fastened, the locking nut can be rotated to make the pressing nut and the top sleeve more stable, can be fast, accurate to high -pressure vertical -type piston pump, vertical -type reciprocating compressor cross head is aligned, and cross head slide is not damaged. DRAWINGS

[0016] Figure 1 The utility model discloses a kind of vertical -type piston pump cross head alignment tool three-dimensional structure schematic diagram of special use for showing as the utility model;

[0017] Figure 2 The utility model discloses a kind of vertical -type piston pump cross head alignment tool three-dimensional structure schematic diagram of special use for showing as the utility model;

[0018] Figure 3 A vertical plunger pump crosshead alignment special tool is shown in the perspective view of the vertical plunger pump crosshead alignment special tool of the utility model.

[0019] Figure 4 A vertical plunger pump crosshead alignment special tool is shown in the perspective view of the vertical plunger pump crosshead alignment special tool of the utility model.

[0020] Mark 1, base; 2, pressure rod; 3, pressure nut; 4, locking nut; 5, top sleeve; 6, screw rod; 7, empty slot one; 8, empty slot two; 9, sliding rod; 10, clamping block; 11, spring; 12, top block; 13, groove; 14, limit block; 15, sliding block; 16, sliding groove; 17, tape box; 18, rotating rod; 19, soft tape; 20, pull block; 21, rotating block. DETAILED DESCRIPTION

[0021] The utility model is further explained in connection with the drawings and examples.

[0022] Please refer to Figures 1-4 The utility model provides a kind of vertical plunger pump crosshead alignment special tool, including base 1;Still including pressure nut 3 and top sleeve 5, the rear end of base 1 is fixedly connected with pressure rod 2, the rear end of pressure rod 2 is provided with screw rod 6, the outer surface of screw rod 6 is threadedly connected with pressure nut 3, the front end of pressure nut 3 is provided with locking nut 4, locking nut 4 is threadedly connected with screw rod 6, the outer surface of screw rod 6 is slidably connected with top sleeve 5 at rear position, the inside of top sleeve 5 is respectively provided with sliding groove 16 on upper and lower sides, the rear end of screw rod 6 is fixedly connected with limit block 14, the upper and lower sides of limit block 14 are respectively fixedly connected with sliding block 15, sliding block 15 is slidably connected with sliding groove 16, base 1 and pressure rod 2 are welded together using gas welding mode, when using, base 1 is topped on the secondary stress surface of crosshead slide, by rotating pressure nut 3 on screw rod 6, top sleeve 5 is advanced to base 1 in reverse direction, while sliding rod 9 on screw rod 6 is slid in sliding groove 16 on top sleeve 5, crosshead alignment special tool is fastened, locking nut 4 can also be rotated to make pressure nut 3 and top sleeve 5 more stable.

[0023] Please refer to Figures 2-3 In the embodiment, the inside of pressure rod 2 is provided with empty slot one 7, the upper and lower sides of pressure rod 2 are respectively provided with empty slot two 8, sliding rod 9 is slidably connected in the inside of empty slot two 8, sliding rod 9 is slid in empty slot two 8, top block 12 is movably connected in the inside of pressure rod 2, top block 12 is fixedly connected with screw rod 6, screw rod 6 replaces base 1 by top block 12, one end of sliding rod 9 close to top block 12 is connected with clamping block 10, the upper and lower sides in the inside of pressure rod 2 are respectively fixedly connected with multiple springs 11, clamping block 10 moves in pressure rod 2 by spring 11.

[0024] Please refer to Figures 4-2 In the embodiment, the spring 11 is fixedly connected with the clamping block 10, recesses 13 are respectively arranged on the upper and lower sides of the top block 12, the recesses 13 are movably connected with the clamping block 10, the recesses 13 and the clamping block 10 are used to fix the top block 12 and the pressing rod 2, the lower end of the top sleeve 5 is fixedly connected with a tape box 17, a rotating rod 18 is movably connected in the tape box 17, the left end of the rotating rod 18 is fixedly connected with a rotating block 21 penetrating through the tape box 17, rotating the rotating block 21 can drive the rotating rod 18 to rotate in the tape box 17, a soft tape 19 is movably connected with the outer surface of the rotating rod 18, a pulling block 20 is arranged at the front end of the tape box 17, the pulling block 20 is connected with the soft tape 19, and pulling the pulling block 20 can pull the soft tape 19 out of the tape box 17.

[0025] In the working process, the base 1 and the pressing rod 2 are welded together by gas welding, the base 1 is used to abut against the secondary stress surface of the cross head slide in use, the top sleeve 5 is moved in the opposite direction of the base 1 by rotating the pressing nut 3 on the lead screw 6, the sliding rod 9 on the lead screw 6 slides in the sliding groove 16 on the top sleeve 5, the cross head alignment tool is fastened, the pressing nut 3 and the top sleeve 5 can be more stably fixed by rotating the locking nut 4, when the base 1 needs to be replaced, the clamping block 10 and the spring 11 are moved by pulling the sliding rod 9 outward, the top block 12 is pulled out of the pressing rod 2, the top block 12 on the lead screw 6 is inserted into the pressing rod 2 in the installation process, the clamping block 10 and the spring 11 are lifted by the top block 12, then the clamping block 10 is clamped into the recess 13 to fix the top block 12, the rotating rod 18 is rotated in the tape box 17 by rotating the rotating block 21, and the soft tape 19 is pulled out of the tape box 17 by pulling the pulling block 20 to assist in measurement.

[0026] Through the above steps, the base 1 and the pressing rod 2 are welded together by gas welding, the base 1 is used to abut against the secondary stress surface of the cross head slide in use, the top sleeve 5 is moved in the opposite direction of the base 1 by rotating the pressing nut 3 on the lead screw 6, the sliding rod 9 on the lead screw 6 slides in the sliding groove 16 on the top sleeve 5, the cross head alignment tool is fastened, the pressing nut 3 and the top sleeve 5 can be more stably fixed by rotating the locking nut 4, to solve the problem that, when the high-pressure vertical piston pump and the vertical reciprocating compressor are overhauled, a lever or a screwdriver is usually used to pry the cross head slide from the stress surface to align, which not only easily damages the working surface of the cross head slide, but also makes the alignment data not accurate enough, thereby reducing the reinstallation precision of the equipment and affecting the service life of the equipment.

Claims

1. A special tool for aligning the crosshead of a vertical plunger pump, comprising a base (1); characterized in that: It also includes a pressure nut (3) and a top sleeve (5). The rear end of the base (1) is fixedly connected to a pressure rod (2). The rear end of the pressure rod (2) is provided with a screw rod (6). The outer surface of the screw rod (6) is threadedly connected to the pressure nut (3). The front end of the pressure nut (3) is provided with a locking nut (4). The locking nut (4) is threadedly connected to the screw rod (6). The outer surface of the screw rod (6) is slidably connected to the top sleeve (5) at the rear position. The upper and lower sides of the top sleeve (5) are respectively provided with sliding grooves (16). The rear end of the screw rod (6) is fixedly connected to a limit block (14). The upper and lower sides of the limit block (14) are respectively fixedly connected to sliders (15). The sliders (15) are slidably connected to the sliding grooves (16).

2. The special tool for aligning the crosshead of a vertical plunger pump according to claim 1, characterized in that: The pressure rod (2) has a slot 1 (7) inside, and slots 2 (8) are opened on the upper and lower sides of the pressure rod (2). A sliding rod (9) is slidably connected inside the slot 2 (8).

3. A special tool for aligning the crosshead of a vertical plunger pump according to claim 2, characterized in that: The pressure rod (2) has a movable internal connection to a top block (12), which is fixedly connected to the lead screw (6).

4. A special tool for aligning the crosshead of a vertical plunger pump according to claim 3, characterized in that: The sliding rod (9) is connected to a locking block (10) at one end near the top block (12), and multiple springs (11) are fixedly connected to the upper and lower sides of the pressure rod (2).

5. A special tool for aligning the crosshead of a vertical plunger pump according to claim 4, characterized in that: The spring (11) is fixedly connected to the locking block (10), and the top block (12) has grooves (13) on its upper and lower sides respectively, and the grooves (13) are movably connected to the locking block (10).

6. A special tool for aligning the crosshead of a vertical plunger pump according to claim 1, characterized in that: The lower end of the top sleeve (5) is fixedly connected to the measuring tape box (17), and the measuring tape box (17) is rotatably connected to the rotating rod (18). The left end of the rotating rod (18) passes through the measuring tape box (17) and is fixedly connected to the rotating block (21).

7. A special tool for aligning the crosshead of a vertical plunger pump according to claim 6, characterized in that: A flexible measuring tape (19) is movably connected to the outer surface of the rotating rod (18), and a pull block (20) is provided at the front end of the measuring tape box (17), which is connected to the flexible measuring tape (19).

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