CN214723869U

CN214723869U - Quick assembly and disassembly tool for core assembly of expansion machine

Info

Publication number: CN214723869U
Application number: CN202023234037.0U
Authority: CN
Inventors: 吴立群; 肖宏远; 庞彦斌; 沈孝; 潘俊辉
Original assignee: Hangzhou Hangyang Expander Co ltd
Current assignee: Hangzhou Hangyang Expander Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-16
Anticipated expiration: 2030-12-29

Abstract

The utility model provides an expander core assembly quick assembly disassembly instrument, include: the sliding frame is arranged on the cold box support, and a slide way is arranged at the bottom of the sliding frame; the two ends of the U-shaped ring are respectively connected with the rolling assemblies, and the U-shaped ring can horizontally move along the slide way through the rolling assemblies under the action of external force; the U-shaped ring is detachably connected with the movement assembly through a connecting piece. The quick disassembling tool for the core assembly of the expansion machine improves the installation precision of the core assembly, avoids damaging key parts such as a sealing piece, an installation matching surface and the like in the installation process, and ensures the working performance of the expansion machine; adopt the connecting piece to realize that U-shaped ring and core assembly's dismantlement are connected, convenient operation has improved dismouting efficiency, when changing core assembly operation, can reduce the improvement of whole device and produce the loss. And the structure is simple, the installation is convenient, and the device is particularly suitable for working environments with narrow space, small models and the like.

Description

Quick assembly and disassembly tool for core assembly of expansion machine

Technical Field

The utility model belongs to the technical field of assembly and disassembly tools, concretely relates to quick assembly and disassembly tools of expander core assembly.

Background

The expander is a mechanical device which obtains cold energy by utilizing the principle that mechanical work is output outwards when compressed gas is expanded and depressurized to reduce the temperature of the gas. When a gas has a certain pressure and temperature, the gas has potential energy represented by the pressure and kinetic energy represented by the temperature, and the two energies are collectively called internal energy. The expansion machine mainly has the function of consuming internal energy of gas by utilizing the gas to do adiabatic expansion to do work externally in the expansion machine, so that the pressure and the temperature of the gas are greatly reduced, and the purposes of refrigeration and cooling are achieved.

The core of the expander is an important component of the expander, and needs to be pushed into the shell of the expander during installation and closely assembled with components in the shell so as to ensure the tightness of the interior of the expander. However, in the installation process, the core is too far into the casing or too much force is applied when pushing, which easily causes damage to key parts such as sealing parts inside the casing, matching surfaces of the core and other components, and the like, and therefore, the installation accuracy of the core is particularly important. In addition, when the expansion machine works, the impeller in the core needs to rotate at a high speed, the impeller is easy to wear after long-term use, the core needs to be replaced to ensure the normal use of the expansion machine, and the disassembly and assembly speed of the core directly influences the working efficiency of the expansion machine.

The traditional machine core assembly is generally disassembled and assembled by adopting hoisting tools such as a travelling crane and an electric hoist, and has low installation precision and higher danger. Although there has been technical scheme to improve the dismouting device of core among the prior art, the device structure is complicated, and manufacturing cost is higher, and the dismouting process is loaded down with trivial details, and is consuming time longer, influences the work efficiency of expander.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the above-mentioned prior art, the utility model provides an expander core assembly quick assembly disassembly instrument, easy dismounting, the installation accuracy is high, and simple structure, and is with low costs.

An expander core assembly quick assembly disassembly instrument includes:

the sliding frame is arranged on the cold box bracket; the bottom of the sliding frame is provided with a slideway;

the two ends of the U-shaped ring are respectively connected with a rolling assembly, and the U-shaped ring can horizontally move along the slide way through the rolling assemblies under the action of external force;

the U-shaped ring is detachably connected with the movement assembly through the connecting piece.

According to the disassembling tool, the core assembly is connected with the U-shaped ring through the connecting piece, the rolling component is arranged, the U-shaped ring can move along the slide way under the action of external force, the core assembly is moved into the shell of the expansion machine or moved out of the shell, and the disassembling tool is convenient to operate, high in installation precision, simple in structure and low in cost.

Preferably, the sliding frame comprises a vertical plate and a bottom plate connected with the vertical plate, and the bottom plate is horizontally positioned between two ends of the U-shaped ring; the two sides of the vertical plate on the bottom plate form the slide ways respectively; the two rolling assemblies are in one-to-one correspondence with the two slideways and are in rolling connection with the corresponding slideways.

Preferably, one end of the bottom plate, which is far away from the cold box support, is bent upwards to form a limiting structure of the slideway; and when the U-shaped ring carrying the movement assembly moves away from the cold box, the rolling component is prevented from being separated from the slide way to cause danger.

Preferably, the vertical plate is of a right-angled triangle structure, one right-angled side of the vertical plate is connected with the cold box bracket, and the bottom plate is connected with the other right-angled side of the vertical plate; the vertical plate with the triangular structure is adopted, so that the dismounting tool is stable in structure, and danger is avoided.

As a further preference, the lower end of one right-angle side of the vertical plate is integrally formed with an installation plate, and the installation plate is perpendicular to the vertical plate; the upper end of the cold box is connected with the cold box bracket through a fixed seat; the mounting plate with between the cold box support, the fixing base with the riser with all realize connecting through the bolt between the cold box support.

The fixed seat consists of a fixed plate and two connecting plates which are integrally formed, and the two connecting plates are respectively and vertically connected with the middle part of the fixed plate side by side; the vertical plate is located between the two connecting plates, the vertical plate, the connecting plates and the connecting plates are connected through two bolts and fixed through matched nuts, and the two bolts are arranged at intervals. And two ends of the fixed plate are respectively connected with the cold box bracket through bolts.

The fixing seat and the mounting plate are arranged, so that the connection area of the vertical plate and the cold box support is increased, the firmness of the connection of the dismounting tool and the cold box support is improved, and the mounting risk is reduced.

Preferably, the rolling assembly includes:

the fixed shaft horizontally penetrates through one end of the U-shaped ring;

the rolling bearing is sleeved on one end of the fixed shaft positioned in the U-shaped ring, and the other end of the fixed shaft is fixed by a nut; the rolling bearing is positioned on the slideway and is in rolling connection with the slideway. When the U-shaped ring is acted by external force, the rolling bearings roll along the corresponding slide ways to realize the horizontal movement of the U-shaped ring.

Preferably, the fixed shaft is further provided with a retaining ring, and the retaining ring is positioned on one side, away from the U-shaped ring, of the rolling bearing; the retainer ring is used for limiting the rolling bearing, and prevents the rolling bearing from falling off from the fixed shaft, so that the U-shaped ring and the movement assembly connected with the U-shaped ring fall off.

Preferably, the connector comprises:

the upper end of the bolt is connected with the U-shaped ring;

a draw rod nut;

the upper end and the lower end of the pull rod nut are respectively in threaded connection with the lower end of the bolt and the upper end of the screw rod, and the threads of the bolt and the screw rod are arranged in opposite directions;

and a screw hole matched with the screw rod is formed in the top of the machine shell of the machine core assembly.

The bolt, the pull rod nut and the screw rod are sequentially connected to form the connecting piece; when the movement assembly is connected or separated, the pull rod nut is rotated to enable the screw rod to rotate upwards or downwards so as to screw out of the screw hole in the top of the movement assembly shell, so that the operation is convenient, and the dismounting efficiency is improved

In addition, the bolt used by the connecting piece and the bolt used by the fixed seat and the mounting plate can have the same specification or different specifications.

In order to further ensure the stability of the connection of the movement assembly, the U-shaped rings can be arranged in a plurality of numbers, the corresponding rolling components, the connecting pieces and the screw holes on the shell of the movement assembly are also correspondingly arranged, and the screw holes are arranged at intervals.

Preferably, the bottom of the U-shaped ring is horizontally provided with a U-shaped groove with an opening at one side, the width of the U-shaped groove is smaller than the diameter of the head of the bolt, the head is positioned on the upper side of the U-shaped groove, and the lower end of the bolt penetrates through the U-shaped groove and is connected with the pull rod nut; when the connecting piece is installed, the bolt is clamped in from the opening of the U-shaped groove, so that the installation is convenient.

As a further preference, the upper side of the U-shaped groove is provided with a limiting groove matched with the head of the bolt, and the thickness of the limiting groove is smaller than that of the top of the U-shaped ring; the limiting groove is used for limiting the bolt and preventing the bolt from being separated from the U-shaped ring.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an expander core assembly quick assembly disassembly instrument realizes that the dismouting that the U-shaped ring drove the core assembly through mutually supporting of roll subassembly and slide removes, has improved the installation accuracy of core assembly, has avoided causing the destruction to key positions such as sealing member, and installation fitting surface in the installation, has guaranteed the working property of expander. In addition, the connecting component consisting of the bolt, the draw-bar nut and the screw rod is adopted to realize the detachable connection of the U-shaped ring and the core assembly, the operation is convenient, the dismounting efficiency is improved, and the yield increasing loss of the whole device can be reduced when the core assembly is replaced. Just the utility model discloses an assembly and disassembly tools simple structure, easy to assemble is particularly useful for the narrow and small operational environment in space, the condition such as cell type.

Drawings

Fig. 1 is an exploded view of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

fig. 3 is another schematic structural diagram of the embodiment of the present invention;

fig. 4 is a schematic structural view of a U-shaped ring according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a fixing base in an embodiment of the present invention;

fig. 6 is the schematic diagram of the utility model discloses when being applied to core assembly dismouting process.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As shown in fig. 1-6, a quick disassembling tool for an expander movement assembly comprises a sliding frame 7, a U-shaped ring 5 and a connecting piece 6;

the sliding frame 7 is arranged on a bracket of the cold box 003 and is used for providing support for the movement of the movement assembly 002; the sliding frame 7 comprises a vertical plate 1 and a bottom plate 2 connected with the vertical plate 1;

riser 1 is the right triangle structure, and its first right-angle side and cold box 003 leg joint adopt the riser 1 of triangle-shaped structure, make assembly and disassembly tools 001 structure firm, effectively avoid dangerous emergence.

The lower end of the first right-angle edge of the vertical plate 1 is integrally formed with a mounting plate 4, and the mounting plate 4 is perpendicular to the vertical plate 1; the upper end of the cold box is connected with a bracket of a cold box 003 through a fixed seat 3; between mounting panel 4 and the cold box 003 support, all realize being connected through bolt 9 between fixing base 3 and riser 1 and the cold box 003 support.

The fixed seat 3 consists of a fixed plate 18 and two connecting plates 19 which are integrally formed, and the two connecting plates 19 are respectively and vertically connected with the middle part of the fixed plate 18 side by side; the vertical plate 1 is positioned between the two connecting plates 19, the three connecting plates are connected through two bolts 9 and fixed by matched nuts 12, and the two bolts 9 are arranged at intervals. Two ends of the fixed plate 18 are respectively connected with the bracket of the cold box 003 through bolts 9.

Above-mentioned fixing base 3 and mounting panel 4's setting has increased the connection area of riser 1 and cold box 003 support, has improved assembly and disassembly tools 001 and cold box 003 leg joint's fastness, reduces the installation risk.

Bottom plate 2 is connected with the second right-angle side, and the both sides of riser 1 form a slide respectively on bottom plate 2, and bottom plate 2 level lies in between the both ends of U-shaped ring 5.

Two ends of the U-shaped ring 5 are respectively connected with a rolling component 8, and the rolling component 8 comprises a fixed shaft 15 and a rolling bearing 14; a first end of the fixed shaft 15 horizontally penetrates through one end of the U-shaped ring 5 and is positioned in the U-shaped ring 5, the rolling bearing 14 is sleeved on the first end, and a second end of the fixed shaft 15 is fixed by the nut 12;

the two rolling bearings 14 are respectively positioned on the two slideways, and when the U-shaped ring 5 is acted by external force, the rolling bearings 14 press the corresponding slideways to roll, so that the U-shaped ring 5 is driven to horizontally move along the sliding frame 7.

The fixed shaft 15 is also provided with a retaining ring 13, and the retaining ring 13 is positioned on one side of the rolling bearing 14 away from the U-shaped ring 5; the retainer ring 13 is used for limiting the rolling bearing 14, and preventing the rolling bearing from falling off from the fixed shaft 15, so that the U-shaped ring 5 and the movement assembly 002 connected with the U-shaped ring fall off.

One end of the bottom plate 2, which is far away from the bracket of the cold box 003, is bent upwards to form a limiting structure of the slideway; prevent the rolling component 8 from separating from the slideway and causing danger when the U-shaped ring 5 carrying the movement assembly 002 moves away from the cold box 003.

The U-shaped ring 5 is detachably connected with the core assembly 002 through a connecting piece 6, and the connecting piece 6 comprises a bolt 9, a draw bar nut 10 and a screw rod 11; the upper end of the bolt 9 is connected with the U-shaped ring 5, the upper end and the lower end of the pull rod nut 10 are respectively in threaded connection with the lower end of the bolt 9 and the upper end of the screw rod 11, and the threads of the bolt 9 and the screw rod 11 are arranged in a reverse direction; the top of the machine shell of the machine core assembly 002 is provided with a screw hole matched with the screw rod 11.

The bolt 9, the pull rod nut 10 and the screw rod 11 are sequentially connected to form a connecting piece 6; when connecting or separating core assembly 002, rotate pull rod nut 10, make screw rod 11 rotatory upwards or downwards, and then screw at the top of the core assembly 002 casing of back-out, convenient operation improves dismouting efficiency.

The U-shaped ring 5 can be provided with a plurality of corresponding rolling components 8, connecting pieces 6 and screw holes on the machine shell of the machine core assembly 002, and the plurality of screw holes are arranged at intervals, so that the stability of the machine core assembly 002 in the installation process is further improved, and the installation precision and the safety are improved.

A U-shaped groove 16 with an opening at one side is horizontally arranged at the bottom of the U-shaped ring 5, the width of the U-shaped groove 16 is smaller than the diameter of the head of the bolt 9, the head is positioned at the upper side of the U-shaped groove 16, and the lower end of the bolt 9 penetrates through the U-shaped groove 16 and is connected with the pull rod nut 10; when the connecting piece 6 is installed, the bolt 9 is clamped in from the opening of the U-shaped groove 16, so that the installation is convenient.

The upper side of the U-shaped groove 16 is provided with a limiting groove 17 matched with the head of the bolt 9, and the thickness of the limiting groove 17 is smaller than that of the top of the U-shaped ring 5; the limiting groove 17 is used for limiting the bolt 9 and preventing the bolt from being separated from the U-shaped ring 5.

The above embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not 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. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides an expander core assembly quick assembly disassembly instrument which characterized in that includes:

2. The quick disassembling and assembling tool for the core assembly of the expansion machine according to claim 1, wherein the sliding frame comprises a vertical plate and a bottom plate connected with the vertical plate, and two sides of the vertical plate on the bottom plate form one of the slide ways respectively.

3. The expander movement assembly quick dismounting tool according to claim 2, wherein one end of the bottom plate, which is far away from the cold box support, is bent upwards to form a limiting structure of the slideway.

4. The quick disassembling and assembling tool for the core assembly of the expansion machine according to claim 2, wherein the vertical plate is of a right-angled triangle structure, one right-angled side of the vertical plate is connected with the cold box bracket, and the bottom plate is connected with the other right-angled side of the vertical plate.

5. The expander movement assembly quick release tool of claim 1, wherein the rolling assembly comprises:

the fixed shaft horizontally penetrates through one end of the U-shaped ring;

the rolling bearing is sleeved on one end of the fixing shaft, which is positioned in the U-shaped ring; the rolling bearing is positioned on the slideway and is in rolling connection with the slideway.

6. The expander movement assembly quick dismounting tool according to claim 5, wherein a retainer ring is further arranged on the fixed shaft, and the retainer ring is positioned on one side of the rolling bearing, which is far away from the U-shaped ring.

7. The expander movement assembly quick release tool of claim 1, wherein the connector comprises:

the upper end of the bolt is connected with the U-shaped ring;

a draw rod nut;

8. The quick disassembling and assembling tool for the core assembly of the expansion machine according to claim 7, wherein a U-shaped groove with an opening at one side is horizontally arranged at the bottom of the U-shaped ring, the width of the U-shaped groove is smaller than the diameter of the head of the bolt, the head is positioned at the upper side of the U-shaped groove, and the lower end of the bolt penetrates through the U-shaped groove and is connected with the pull rod nut.

9. The quick assembling and disassembling tool for the core assembly of the expansion machine according to claim 8, wherein a limiting groove matched with the head is formed in the upper side of the U-shaped groove, and the thickness of the limiting groove is smaller than that of the top of the U-shaped ring.