CN214394017U

CN214394017U - Screw compressor rotor dismounting device

Info

Publication number: CN214394017U
Application number: CN202022324422.8U
Authority: CN
Inventors: 张俊忠; 纪禄; 李文蔚
Original assignee: China National Chemical Engineering Third Construction Co Ltd
Current assignee: China National Chemical Engineering Third Construction Co Ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-10-15
Anticipated expiration: 2030-10-19

Abstract

The utility model relates to a screw compressor rotor dismounting device. The screw compressor rotor dismounting device comprises a fixed frame and a support frame, wherein the fixed frame is positioned above the support frame, an ejection mechanism is detachably connected in the fixed frame, a shell with a male rotor and a female rotor is placed in the support frame, the telescopic end of the ejection mechanism is respectively contacted with the ends of the male rotor and the female rotor, and the ejection mechanism simultaneously ejects the male rotor and the female rotor out of the shell; the ejection mechanisms are two groups of jacks; the support frame comprises a support cross beam, two ends of the support cross beam are respectively connected with a support longitudinal beam, the lower ends of the support cross beam and the support longitudinal beam are respectively and fixedly connected with support legs, and the number of the support legs is four; this screw compressor rotor dismounting device, simple structure, convenient operation uses in a flexible way, need not to cut the support bearing and can take out the negative and positive rotor, has saved the maintenance cost for the maintenance progress.

Description

Screw compressor rotor dismounting device

Technical Field

The utility model belongs to the technical field of the rotor is dismantled, concretely relates to screw compressor rotor dismounting device.

Background

The screw air compressors are arranged in devices of chemical industry, petroleum, chemical fertilizer, pharmacy and the like according to the requirements of production processes, if the temperature of the screw air compressors is ultrahigh or impurities enter the screw air compressors in the operation process, the female rotor and the male rotor are easy to be occluded and blocked, and the female rotor and the male rotor are difficult to take out of the shell during disassembly and maintenance. In the traditional method, a sledge hammer or a copper bar is adopted to impact the male and female rotors to forcibly eject a shell, or a bearing supporting the male and female rotors is cut to take out the male and female rotors, and the two traditional methods are easy to damage parts, so that economic loss is caused, and the overhaul time is long. Therefore, how to draw the blocked male rotor and the blocked female rotor out of the compressor shell smoothly, safely and economically becomes a technical problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, reasonable in design's screw compressor rotor dismounting device just for solving above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a screw compressor rotor dismounting device, includes mount and support frame, the mount is located the top of support frame, the inside of mount can be dismantled and be connected with ejection mechanism, and the casing that has male rotor and female rotor is placed in the support frame, ejection mechanism's flexible end contacts with the end of male rotor and female rotor respectively, ejection mechanism is simultaneously with male rotor and female rotor ejection casing.

As a further optimization scheme of the utility model, ejection mechanism is two sets of jacks.

As the utility model discloses a further optimization scheme, the support frame includes supporting beam, supporting beam's both ends are connected with the support longeron respectively, supporting beam and the lower extreme of supporting longeron are fixedly connected with supporting leg respectively, the quantity of supporting leg is four groups.

As the utility model discloses a further optimization scheme, the support frame still includes a set of support time crossbeam and two sets of support time longerons, support time longeron and be located support the below of longeron, support time crossbeam and be located support cross beam's below, support time crossbeam and two sets of support time longerons and be connected adjacent supporting leg respectively.

As a further optimization scheme of the utility model, the lower terminal surface fixedly connected with connecting plate of supporting leg, the connecting plate has the wheel through connecting bolt connection.

As the utility model discloses a further optimization scheme, the mount includes four group's support columns, the support column is fixed in respectively the up end of supporting beam and support longeron, the outer fixed surface of upper end of support column is connected with the longeron, the quantity of longeron is two sets of, and is two sets of the longeron is located respectively the top of supporting the longeron is two sets of fixedly connected with girder between the longeron, the lower terminal surface of girder with ejection mechanism can dismantle the connection.

As the utility model discloses a further optimization scheme, the lower terminal surface of girder is provided with the fixed slot, ejection mechanism card is gone into and is hung in the fixed slot.

As the utility model discloses a further optimization scheme, supporting beam fixedly connected with pushes away and draws the handle, the push-and-pull is including the handle, the both ends difference fixedly connected with of handle connects the vertical pole, and is two sets of connect still fixedly connected with between the vertical pole and connect the horizontal pole.

The beneficial effects of the utility model reside in that: the device of the utility model adopts the jack to slowly press the male rotor and the female rotor at the same time, and the force is simultaneously applied and is uniform, so that the male rotor and the female rotor are simultaneously pressed out from the shell, thereby avoiding the risk of impacting other parts when a sledge hammer or a copper bar is used for impact; the male and female rotors can be taken out without cutting the supporting bearing, so that the overhaul cost is saved, and the overhaul progress is accelerated; the dismounting device is wide in practicability, and can also be used for dismounting pump equipment, valves and the like and repeatedly used.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic top view of fig. 1 according to the present invention;

fig. 3 is a schematic side view of fig. 1 according to the present invention.

In the figure: 1. a fixed mount; 101. a main beam; 102. fixing grooves; 103. a stringer; 104. a support pillar; 2. a housing; 3. a male rotor; 4. a support frame; 401. a support beam; 402. supporting legs; 403. a connecting plate; 404. supporting the secondary beam; 405. supporting a secondary longitudinal beam; 406. supporting the longitudinal beam; 5. a wheel; 6. a jack; 7. a female rotor; 8. a connecting bolt; 9. pushing and pulling the handle; 901. a handle; 902. connecting the cross bars; 903. and connecting the longitudinal rods.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

Example 1

As shown in fig. 1-3, a screw compressor rotor dismounting device includes a fixed frame 1 and a supporting frame 4, the fixed frame 1 is located above the supporting frame 4, an ejection mechanism is detachably connected inside the fixed frame 1, a casing 2 with a male rotor 3 and a female rotor 7 is placed in the supporting frame 4, a telescopic end of the ejection mechanism is respectively contacted with ends of the male rotor 3 and the female rotor 7, and the ejection mechanism simultaneously ejects the male rotor 3 and the female rotor 7 out of the casing 2.

In the embodiment, the ejection mechanism has two forms, i.e. the ejection mechanism is a group of jacks, the end heads of the ejection mechanism are connected with an n-shaped ejection structure, the two end heads of the lower part of the ejection structure are respectively contacted with the end heads of the male rotor 3 and the female rotor 7, and the male rotor 3 and the female rotor 7 are extruded under the action of the jacks; secondly, the ejection mechanisms are two groups of jacks 6, and the latter is selected for description in the embodiment; the support frame 4 comprises a support cross beam 401, two ends of the support cross beam 401 are respectively connected with support longitudinal beams 406, the lower ends of the support cross beam 401 and the support longitudinal beams 406 are respectively and fixedly connected with support legs 402, and the number of the support legs 402 is four; the support frame 4 further comprises a group of support secondary cross beams 404 and two groups of support secondary longitudinal beams 405, the support secondary longitudinal beams 405 are located below the support longitudinal beams 406, the support secondary cross beams 404 are located below the support cross beams 401, and the support secondary cross beams 404 and the two groups of support secondary longitudinal beams 405 are respectively connected with adjacent support legs 402; the lower end face of the supporting leg 402 is fixedly connected with a connecting plate 403, and the connecting plate 403 is connected with a wheel 5 through a connecting bolt 8; the fixed frame 1 comprises four groups of supporting columns 104, the supporting columns 104 are respectively fixed on the upper end surfaces of the supporting cross beam 401 and the supporting longitudinal beams 406, the outer surface of the upper end of each supporting column 104 is fixedly connected with two longitudinal beams 103, the two longitudinal beams 103 are respectively positioned above the supporting longitudinal beams 406, a main beam 101 is fixedly connected between the two longitudinal beams 103, and the lower end surface of the main beam 101 is detachably connected with the ejection mechanism; a fixing groove 102 is formed in the lower end face of the main beam 101, and the ejection mechanism is clamped in the fixing groove 102 to be suspended; the supporting cross beam 401 is fixedly connected with a push-pull handle 9, the push-pull handle 9 comprises a handle 901, two ends of the handle 901 are respectively and fixedly connected with connecting longitudinal rods 903, and a connecting cross rod 902 is fixedly connected between the two groups of connecting longitudinal rods 903.

Manufacturing a support frame 4: the supporting beam 401 is made of 50 x 50H-shaped steel, and a short section with the length of 1000mm is cut; the supporting longitudinal beam 406 is made of 50 x 50H-shaped steel, 2 short sections with the length of 1000mm are cut out and respectively welded with the supporting cross beam 401 to form an n-shaped groove frame with three equal edges, so that a screw compressor to be overhauled is placed on the supporting longitudinal beam 406 from an opening of the groove frame; the supporting legs 402 are made of 50 x 50H-shaped steel, 4 short sections with the length of 800mm are cut out and respectively welded below the n-groove frame; the supporting secondary cross beam 404 is made of a steel pipe with the diameter of 48mm, a short section with the length of 1000mm is cut out, and the short section is welded between the two supporting legs 402 below the supporting cross beam 401 and is one fourth away from the bottoms of the supporting legs 402, so that the supporting legs 402 are prevented from being stressed and contracted, and the dismounting device is prevented from inclining; the supporting secondary longitudinal beam 405 is made of a steel pipe with the diameter of 48mm, 2 short sections with the length of 1000mm are cut out and respectively welded between the two supporting legs 402 below the two supporting longitudinal beams and at a position which is one fourth of the distance from the bottom of the supporting leg 402, so that the supporting leg 402 is prevented from being stressed and contracted to cause the inclination of the dismounting device; the connecting plate 403 is made into a rectangular block by adopting a steel plate with the thickness of 10mm, the size of the rectangular block is made according to the size of the connecting plate of the finished

wheel

5, 4 connecting bolt 8 holes are formed in the connecting plate 403, and the 4 connecting plates 403 are respectively welded below the supporting legs 402; the finished wheel 5 is mounted under the connection plate 403 and is firmly connected by the connection bolt 8.

Manufacturing the fixing frame 1: the supporting column 104 is made of 50 x 50H-shaped steel, 4 short sections with the length of 400mm are cut out and are respectively welded on the supporting beam 401; the longitudinal beam 103 is made of 50 x 50H-shaped steel, 2 short sections with the length of 200mm are cut out and respectively welded on the supporting columns 104; the main beam 101 is made of 50 x 50H-shaped steel, 1 short section with the length of 1000mm and 2 short sections with the length of 200mm are cut, 1 short section with the length of 1000mm is welded between the two

longitudinal beams

103, and 2 short sections with the length of 200mm are respectively welded on two sides of the two longitudinal beams 103; the fixing groove 102 is made of 30 x 30 angle steel, 2 short sections with the length of 100mm are cut out and welded in the middle of the main beam 101, the distance between the 2 short sections is determined according to the diameter of a base of the jack 6, and the fixing groove 102 is used for hanging the jack 6.

Manufacturing the push-pull handle 9: the handle 901 is made of a phi 48 steel pipe, and 1 short section with the length of 800mm is cut; the connecting longitudinal rod 903 is made of a steel pipe with the diameter of 33 mm, 2 short sections with the length of 500mm are cut out, one ends of the 2 short sections are inclined by 30 degrees and are respectively welded on the side surface of the supporting beam 401, and the other ends of the short sections are welded with the handle 901; the connecting cross rod 902 is made of phi 33 steel pipes, 1 short section with the length of 500mm is cut out, the short sections are welded in the middle of the connecting longitudinal rod 903, and the connecting cross rod 902 is used for enhancing the strength of the connecting longitudinal rod 903.

It should be noted that the surface of the casing 2 has a frame body, and the frame body can be erected on the support longitudinal beam 406, if the frame body does not exist, an external clamp is needed to be used in cooperation, the device is applied to the maintenance process of the screw type air compressor of an air compression station of a certain ammonia synthesis device in the first experiment, and the female rotor and the male rotor are smoothly taken out of the casing.

This screw compressor rotor dismounting device, when using, will wait that the screw compressor frame of disassembling establishes on the support longeron 406 of the both sides of support frame 4, hangs the base of two jacks 6 respectively in fixed slot 102, and the head of jack 6 withstands the shaft end portion of female rotor 7 and male rotor 3 respectively, starts two jacks 6 simultaneously, makes female rotor 7 and male rotor 3 extrude from compressor housing 2 simultaneously, and whole device is comparatively practical.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a screw compressor rotor dismounting device, its characterized in that, includes mount (1) and support frame (4), mount (1) is located the top of support frame (4), the inside of mount (1) can be dismantled and is connected with ejection mechanism, places in support frame (4) casing (2) that have male rotor (3) and female rotor (7), ejection mechanism's flexible end contacts with the end of male rotor (3) and female rotor (7) respectively, ejection mechanism is simultaneously with male rotor (3) and female rotor (7) ejection casing (2).

2. The screw compressor rotor disassembly apparatus of claim 1, wherein: the ejection mechanisms are two groups of jacks (6).

3. The screw compressor rotor disassembly apparatus of claim 2, wherein: the support frame (4) comprises a support beam (401), the two ends of the support beam (401) are respectively connected with a support longitudinal beam (406), the lower ends of the support beam (401) and the support longitudinal beam (406) are respectively fixedly connected with support legs (402), and the number of the support legs (402) is four.

4. The screw compressor rotor disassembly apparatus of claim 3, wherein: the support frame (4) further comprises a set of support secondary cross beam (404) and two sets of support secondary longitudinal beams (405), the support secondary longitudinal beams (405) are located below the support longitudinal beams (406), the support secondary cross beam (404) is located below the support cross beam (401), and the support secondary cross beam (404) and the two sets of support secondary longitudinal beams (405) are respectively connected with adjacent support legs (402).

5. The screw compressor rotor disassembly apparatus of claim 4, wherein: the lower terminal surface fixedly connected with connecting plate (403) of supporting leg (402), connecting plate (403) are connected with wheel (5) through connecting bolt (8).

6. The screw compressor rotor disassembly apparatus of claim 5, wherein: the fixing frame (1) comprises four groups of supporting columns (104), the supporting columns (104) are fixed on the upper end faces of the supporting cross beams (401) and the supporting longitudinal beams (406) respectively, the outer surface of the upper end of each supporting column (104) is fixedly connected with the longitudinal beams (103), the number of the longitudinal beams (103) is two, the longitudinal beams (103) are located above the supporting longitudinal beams (406) respectively and are two groups, the longitudinal beams (103) are fixedly connected with the main beams (101), and the lower end faces of the main beams (101) are detachably connected with the ejection mechanisms.

7. The screw compressor rotor disassembly apparatus of claim 6, wherein: the lower end face of the main beam (101) is provided with a fixing groove (102), and the ejection mechanism is clamped in the fixing groove (102) to be suspended.

8. The screw compressor rotor disassembly apparatus of claim 7, wherein: the supporting cross beam (401) is fixedly connected with a push-pull handle (9), the push-pull handle (9) comprises a handle (901), two ends of the handle (901) are respectively and fixedly connected with connecting longitudinal rods (903), and a connecting cross rod (902) is fixedly connected between the two groups of connecting longitudinal rods (903).