CN110615021A - Heat exchanger assembling and transporting method adopting air cushion transporting equipment - Google Patents
Heat exchanger assembling and transporting method adopting air cushion transporting equipment Download PDFInfo
- Publication number
- CN110615021A CN110615021A CN201910676036.4A CN201910676036A CN110615021A CN 110615021 A CN110615021 A CN 110615021A CN 201910676036 A CN201910676036 A CN 201910676036A CN 110615021 A CN110615021 A CN 110615021A
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- CN
- China
- Prior art keywords
- air cushion
- heat exchanger
- transportation
- body structure
- tray support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/0026—Propulsion aids
Abstract
The invention discloses a heat exchanger assembling and transporting method adopting air cushion transporting equipment, which belongs to the technical field of equipment transportation, and adopts the working condition that the air cushion transporting equipment is used for simultaneously assembling and transporting a plurality of section heat exchangers; at different time intervals, the main vehicle body structure of the air cushion transportation equipment is respectively matched with the tray supports below the heat exchangers at different assembly sections; realize the transportation of a plurality of heat exchangers between different equipment worker sections, air cushion transportation equipment includes: a main body structure, an air cushion, a tray support; the pressure of the air cushion suspension transportation equipment to the ground is small, so that the damage to the ground of a factory building is reduced; the transportation of a plurality of heat exchangers between different assembly work sections is realized. Compared with the traditional overhead crane transportation between different sections, the air cushion transportation is convenient and flexible, and the relative bearing capacity is larger.
Description
Technical Field
The invention belongs to the technical field of equipment assembly and transportation, relates to an air cushion suspension transport vehicle, and particularly relates to assembly and transportation for a heat exchanger assembly workshop section.
Background
Air cushion suspension transport vehicles are a new type of load transport solution, which is used in more and more fields. In the past, the factory building crown block is adopted for hoisting and transporting between the heat exchanger assembling sections, the transporting process is limited by the heat exchanger structure and the factory building crown block equipment, the operation process is not convenient, the safety conditions of the site which is required to be guaranteed by crown block transporting are more, and the cost of the whole crown block system is high.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: the heat exchanger assembling and transporting method adopting the air cushion transporting equipment is provided, and the air cushion transporting equipment is adopted to realize the efficient and flexible transportation work of the heat exchanger between different work sections through corresponding transportation modes under the condition that a plurality of heat exchangers need to be transported back and forth between different assembling work sections in the transporting process.
(II) technical scheme
In order to solve the technical problem, the heat exchanger assembling and transporting method adopting the air cushion transporting equipment is characterized by comprising the following steps: in each assembly working section of the heat exchanger, the left side and the right side of the bottom of the heat exchanger are respectively provided with a tray bracket of air cushion transportation equipment; the main vehicle body structures of the two air cushion transport devices can be respectively matched with the tray supports at the bottoms of the left side and the right side of the heat exchanger of each assembly workshop section; at different time intervals, the main vehicle body structure of the air cushion transportation equipment is respectively matched with the tray supports below the heat exchangers at different assembly sections; the transportation of a plurality of heat exchangers among different assembly work sections is realized; wherein the air cushion transport equipment includes: the device comprises a main vehicle body structure, a pneumatic control system, an air cushion, a tray support, a pressure reducing valve and universal wheels; the front end and the rear end of the lower part of the main vehicle body structure are provided with air cushions which can be inflated and expanded, and the airfoil surface of the air cushion adjacent to the bottom surface is provided with a plurality of small holes; the pneumatic control system comprises two pressure reducing valves and a pipeline for connecting the air source, the pressure reducing valves and the air cushion, and the pressure reducing valves are switched on and off to control the floating state of the air cushion; four corners of the bottom of the main vehicle body structure are respectively provided with a universal wheel, and the main vehicle body structure provides supporting force and serves as a travelling wheel when the air cushion is not inflated and expanded; the tray support comprises a flat plate and two side plates, and the height of each side plate is smaller than the height of the inflated air cushion and larger than the height of the inflated air cushion before inflation; the width of the flat plate is greater than the width of the main vehicle body structure; the tray support has a plurality of, and the quantity of tray support is greater than the quantity of main vehicle body structure.
Preferably, the method comprises the specific definition:
when the parts of the heat exchanger are assembled at the first assembling working section, the heat exchanger is fixed with the tray bracket; when the assembly of the working section is finished and the air cushion transportation equipment needs to be moved to the next working section for continuous assembly, the parts of the air cushion transportation equipment except the tray support are pushed to the lower part of the tray support through universal wheels at the bottom; opening the pressure reducing valve to supply air to the air cushion, and inflating and floating the air cushion to drive the tray support to move upwards to leave the ground; pushing the air cushion transportation equipment to integrally transport the heat exchanger and the tray support to the next working section; closing the pressure reducing valve to enable the air cushion to exhaust and descend; the tray support falls to the ground; pulling the main body structure 1 out from under the pallet jack; the part of the air cushion transport apparatus other than the tray support is then subjected to transport work for the next group of heat exchangers or for the heat exchangers of other assembly stations.
Further, the air cushion transport apparatus further comprises a handrail; the rear end of the upper surface of the main vehicle body structure is provided with a handrail, and when the empty vehicle moves or the air cushion floats and moves, the handrail is pushed by hands to move.
Further, the pressure reducing valve of the air cushion transportation equipment is a manual pressure reducing valve.
Further, the air cushion section of the air cushion transportation equipment is circular.
Further, the air cushion transportation equipment tray support still includes preceding riser.
Further, the air cushion transportation equipment tray support still includes the structure that can be with heat exchanger fixed connection.
(III) advantageous effects
The invention provides a heat exchanger assembling and transporting method adopting air cushion transport equipment, which is realized by adopting an air cushion suspension transport vehicle to transport the heat exchanger equipment, utilizing the air cushion transport vehicle to float heavy objects and utilizing a manual pushing mode. The whole transportation system has lower cost, safe and environment-friendly transportation process, strong reliability and flexible and simple transportation operation.
Compared with the prior art, in the technical scheme provided by the invention, the pressure of the air cushion suspension transport vehicle to the ground is low, and the damage to the ground of a factory building is reduced; compared with the traditional overhead traveling crane transportation, the air cushion transportation has larger relative bearing capacity; the scheme can finish the transportation work of the heat exchanger between assembly work sections, and the air cushion has the characteristic of flexibility, so that the relative impact is small in the transportation process.
In each assembly working section of the heat exchanger, the left side and the right side of the bottom of the heat exchanger are provided with a tray bracket for assembling and transporting equipment in the heat exchanger working section; at different time intervals, the main vehicle body structure of the air cushion transportation equipment is respectively matched with the tray supports below the heat exchangers at different assembly sections; the transportation of a plurality of heat exchangers between different assembly work sections is realized. Compared with the traditional overhead crane transportation between different sections, the air cushion transportation is convenient and flexible, and the relative bearing capacity is larger.
Drawings
Fig. 1 is a top view of the air mattress transport apparatus of the present invention.
Fig. 2 is a schematic view of the left side of the air mattress transport apparatus of the present invention.
Fig. 3 is a bottom schematic view of the air mattress transport apparatus of the present invention.
Fig. 4 is a schematic view of the transportation process of the air cushion transportation equipment and the heat exchanger of the invention.
Wherein: 1-main vehicle body structure, 2-pneumatic control system, 3-air cushion, 4-tray support, 5-manual pressure reducing valve, 6-universal wheel, 7-handrail, 8-heat exchanger.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
An assembly and transportation device for a heat exchanger workshop section, comprising: the device comprises a main vehicle body structure 1, a pneumatic control system 2, an air cushion 3, a tray support 4, a pressure reducing valve and universal wheels 6; the upper surface and the lower surface of the main vehicle body structure 1 provide mounting and fastening interfaces for other parts; air cushions 3 are arranged at the front end and the rear end of the lower part of the main vehicle body structure 1, the air cushions can be inflated and expanded, and the airfoil surfaces of the air cushions 3 adjacent to the bottom surface are provided with a plurality of small holes; when the air cushion is inflated and expanded, the main vehicle body structure can be lifted; the pneumatic control system 2 is arranged behind the main vehicle body structure 1 and comprises two pressure reducing valves and pipelines for connecting an air source, the pressure reducing valves and the air cushion, and the pressure reducing valves are switched on and off to control the floating state of the air cushion 3; four corners of the bottom of the main vehicle body structure are respectively provided with a universal wheel 6, and the main vehicle body structure 1 provides supporting force and serves as a travelling wheel when the air cushion is not inflated and expanded; the tray support comprises a flat plate and two side plates, and the height of each side plate is smaller than the height of the inflated air cushion and larger than the height of the inflated air cushion before inflation; the sleepiness of the flat plate is greater than the width of the main vehicle body structure; the tray support has a plurality of, and the quantity of tray support is greater than the quantity of main vehicle body structure.
Further, an armrest 7 is also included; the rear end of the upper surface of the main vehicle body structure 1 is provided with a handrail 7, and when the empty vehicle moves or the air cushion floats and moves, the handrail 7 is pushed by hand to move.
Further, the pressure reducing valve is a manual pressure reducing valve 5.
Further, include 2 groups one kind and be used for heat exchanger workshop section equipment transportation, can be used for the left and right sides bottom of heat exchanger respectively.
As shown in fig. 1 to 4, the air cushion transportation equipment for transporting heat exchangers in an assembly station is used for flexibly transporting a plurality of heat exchangers 8 in different assembly stations, and comprises: the device comprises a main vehicle body structure 1, a pneumatic control system 2, an air cushion 3, a tray support 4, a manual pressure reducing valve 5, universal wheels 6 and armrests 7.
The main vehicle body structure 1 is a main bearing part, and the upper surface and the lower surface of the main vehicle body structure provide mounting and fastening interfaces for other parts;
air cushions 3 are arranged at the front end and the rear end of the lower part of the main vehicle body structure 1, the air cushions 3 are arranged at the lower part of the main vehicle body structure 1, when the air cushions 3 are inflated, the main vehicle body structure 1 is lifted, and a uniform air film can be formed between the air cushions 3 and the ground so as to reduce the friction force between the air cushion transportation equipment and the ground.
The pneumatic control system 2 is arranged in a control box at the rear part of the main vehicle body structure 1, and the pneumatic control system 2 controls the normal work of the whole gas circuit system.
The pneumatic control system 2 provides corresponding logic control for the whole air cushion equipment, comprises two manual pressure reducing valves 5 and pipelines, and can manually adjust the pressure reducing valves so as to control the floating state of the air cushion 3 of the whole air cushion transportation system;
four corners of the bottom of the main vehicle body structure 1 are respectively provided with a universal wheel 6 which is used for providing supporting force for the main vehicle body structure 1 and is responsible for walking when an empty vehicle moves;
the rear end of the upper surface of the main vehicle body structure 1 is provided with a handrail 7, and when the empty vehicle moves or the whole system moves by air cushion floating, the handrail 7 can be pushed by hand to move.
A heat exchanger assembling and transporting method adopting air cushion transporting equipment is used for transporting a plurality of heat exchangers between different assembling work sections.
A heat exchanger assembly transportation method using air cushion transportation equipment, the method comprising the following steps:
in each assembly working section of the heat exchanger, the left side and the right side of the bottom of the heat exchanger are provided with a tray bracket for assembling and transporting equipment in the heat exchanger working section; the main vehicle body structures 1 of the two air cushion transport devices can be respectively matched with the tray supports at the bottoms of the left side and the right side of the heat exchanger of each assembly workshop section; in different time periods, the main vehicle body structure 1 of the air cushion transportation equipment is respectively matched with the tray supports below the heat exchangers in different assembly sections; the transportation of a plurality of heat exchangers between different assembly work sections is realized.
A heat exchanger assembly transportation method using air cushion transportation equipment, the method comprising the following steps:
when the parts of the heat exchanger 8 are assembled at the first assembling working section, the heat exchanger 8 is fixed with the tray support 4;
when the assembly of the working section is finished and the air cushion transportation equipment needs to be moved to the next working section for continuous assembly, the parts of the air cushion transportation equipment except the tray support are pushed to the lower part of the tray support through the universal wheels 6 at the bottom; the pressure reducing valve is opened to supply air to the air cushion, the air cushion 3 is inflated and floats, and the tray support 4 is driven to move upwards to leave the ground; pushing the air cushion transportation equipment to integrally transport the heat exchanger 8 and the tray support 4 to the next working section; closing the pressure reducing valve 5 to enable the air cushion 3 to exhaust and descend; the tray support 4 falls to the ground; pulling the main body structure 1 out from under the pallet jack; the parts of the air cushion transport apparatus other than the tray support carry out the transport work of the heat exchanger 8 of the next group or the transport work of the heat exchanger 8 of the other assembly stations.
The air cushion transportation equipment for transporting in the heat exchanger assembly workshop section of the invention has the following operation processes:
when the parts of the heat exchanger 8 are assembled on the tray support 4, after one workshop section is assembled and needs to be moved to the next workshop section for continuous assembly, the air cushion transportation equipment is pushed to the position below the tray support to be transported through the universal wheels 6 at the bottom; the main air path is opened to start air supply for the system, the manual pressure reducing valve 5 on the pneumatic control system 2 is adjusted, the air cushion 3 is adjusted to be inflated and floated, and the tray support 4 is driven to move upwards to leave the ground after the air cushion system is stably floated through fine adjustment of the manual pressure reducing valve 5. After the tray support 4 leaves the ground, the entire load heat exchanger is carried by pushing the handrail 7 on the main vehicle body structure 1. When the pallet is transported to the next working section, the manual pressure reducing valve 5 of the pneumatic control system 2 is adjusted to be closed, so that the air cushion 3 is exhausted and descends, and the pallet support 4 falls to the ground. The main body structure 1 is pulled out from under the pallet support for the transport work of the next group of heat exchangers 8.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A heat exchanger assembling and transporting method using air cushion transport equipment, which is characterized by comprising the following steps:
in each assembly working section of the heat exchanger, the left side and the right side of the bottom of the heat exchanger are respectively provided with a tray bracket of air cushion transportation equipment;
the main vehicle body structures (1) of the two air cushion transport devices can be respectively matched with the tray supports at the bottoms of the left side and the right side of the heat exchanger of each assembly workshop section; in different time periods, the main vehicle body structure (1) of the air cushion transportation equipment is respectively matched with the tray supports below the heat exchangers in different assembly sections; the transportation of a plurality of heat exchangers among different assembly work sections is realized;
wherein the air cushion transport equipment includes: the device comprises a main vehicle body structure (1), a pneumatic control system (2), an air cushion (3), a tray support (4), a pressure reducing valve and universal wheels (6); air cushions (3) are arranged at the front end and the rear end of the lower part of the main vehicle body structure (1), the air cushions can be inflated and expanded, and a plurality of small holes are formed in the air cushions (3) and the airfoil surface adjacent to the bottom surface;
the pneumatic control system comprises two pressure reducing valves and a pipeline for connecting the air source, the pressure reducing valves and the air cushion, and the pressure reducing valves are switched on and off to control the floating state of the air cushion; four corners of the bottom of the main vehicle body structure are respectively provided with a universal wheel (6), and the main vehicle body structure provides supporting force and serves as a travelling wheel when the air cushion is not inflated and expanded;
the tray support comprises a flat plate and two side plates, and the height of each side plate is smaller than the height of the inflated air cushion and larger than the height of the inflated air cushion before inflation; the width of the flat plate is greater than the width of the main vehicle body structure; the tray support has a plurality of, and the quantity of tray support is greater than the quantity of main vehicle body structure.
2. A method of assembling and transporting a heat exchanger using air cushion transport equipment according to claim 1, wherein the method comprises the steps defined specifically as:
when the parts of the heat exchanger (8) are assembled at the first assembling working section, the heat exchanger (8) is fixed with the tray bracket (4);
when the assembly of the working section is finished and the air cushion transportation equipment needs to be moved to the next working section for continuous assembly, the parts of the air cushion transportation equipment except the tray support are pushed to the lower part of the tray support through universal wheels (6) at the bottom; the pressure reducing valve is opened to supply air to the air cushion, and the air cushion is inflated to float, so that the tray support (4) is driven to move upwards to leave the ground; pushing the air cushion transportation equipment to integrally transport the heat exchanger (8) and the tray support (4) to the next working section; closing the pressure reducing valve (5) to enable the air cushion (3) to be exhausted and descend; the tray support (4) falls to the ground; pulling the main body structure 1 out from under the pallet jack;
the parts of the air cushion transport device other than the tray support are then subjected to transport work for the next group of heat exchangers (8) or for the heat exchangers (8) of other assembly stations.
3. A method of heat exchanger assembly transportation using an air cushion transport apparatus as claimed in claim 1, wherein the air cushion transport apparatus further comprises handrails (7); the rear end of the upper surface of the main vehicle body structure is provided with a handrail, and when the empty vehicle moves or the air cushion floats and moves, the handrail is pushed by hands to move.
4. The heat exchanger assembly transportation method using air cushion transportation equipment according to claim 1, wherein the pressure reducing valve of the air cushion transportation equipment is a manual pressure reducing valve (5).
5. The method for assembling and transporting a heat exchanger by using an air cushion transport apparatus as claimed in claim 1, wherein the air cushion transport apparatus has a circular cross-section.
6. The method for assembling and transporting a heat exchanger by using an air cushion transport device as claimed in claim 1, wherein the air cushion transport device tray support further comprises a front vertical plate.
7. The method for assembling and transporting a heat exchanger using an air cushion transport device as claimed in claim 1, wherein the air cushion transport device tray support further comprises a structure capable of being fixedly connected with the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910676036.4A CN110615021B (en) | 2019-07-25 | 2019-07-25 | Heat exchanger assembling and transporting method adopting air cushion transporting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910676036.4A CN110615021B (en) | 2019-07-25 | 2019-07-25 | Heat exchanger assembling and transporting method adopting air cushion transporting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110615021A true CN110615021A (en) | 2019-12-27 |
| CN110615021B CN110615021B (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910676036.4A Active CN110615021B (en) | 2019-07-25 | 2019-07-25 | Heat exchanger assembling and transporting method adopting air cushion transporting equipment |
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| CN (1) | CN110615021B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203460918U (en) * | 2013-08-05 | 2014-03-05 | 山东豪迈机械制造有限公司 | Combined air cushion carrier |
| US20140262565A1 (en) * | 2013-03-12 | 2014-09-18 | Hunter Engineering Company | Portable Wheel Rolling Apparatus |
| CN204868042U (en) * | 2015-06-19 | 2015-12-16 | 北京特种机械研究所 | A air cushion transportation equipment that is used for special lathe to carry and accurate butt joint |
| CN105398443A (en) * | 2015-11-05 | 2016-03-16 | 北京特种机械研究所 | Collaborative air-cushion floating transporting vehicle |
| CN205634202U (en) * | 2016-03-30 | 2016-10-12 | 无锡双赢利金属制品科技有限公司 | Gas back punch piece and air cushion handling device thereof |
| EP3260348A1 (en) * | 2015-02-19 | 2017-12-27 | Hitachi, Ltd. | Device and method for mounting equipment under floor of rail vehicle |
| GB2556073A (en) * | 2016-11-17 | 2018-05-23 | St Neots Prec Limited | Moveable platform |
| CN108382385A (en) * | 2018-03-15 | 2018-08-10 | 北京特种机械研究所 | A kind of air cushion suspended transport vehicle wheel group protective device |
-
2019
- 2019-07-25 CN CN201910676036.4A patent/CN110615021B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140262565A1 (en) * | 2013-03-12 | 2014-09-18 | Hunter Engineering Company | Portable Wheel Rolling Apparatus |
| CN203460918U (en) * | 2013-08-05 | 2014-03-05 | 山东豪迈机械制造有限公司 | Combined air cushion carrier |
| EP3260348A1 (en) * | 2015-02-19 | 2017-12-27 | Hitachi, Ltd. | Device and method for mounting equipment under floor of rail vehicle |
| CN204868042U (en) * | 2015-06-19 | 2015-12-16 | 北京特种机械研究所 | A air cushion transportation equipment that is used for special lathe to carry and accurate butt joint |
| CN105398443A (en) * | 2015-11-05 | 2016-03-16 | 北京特种机械研究所 | Collaborative air-cushion floating transporting vehicle |
| CN205634202U (en) * | 2016-03-30 | 2016-10-12 | 无锡双赢利金属制品科技有限公司 | Gas back punch piece and air cushion handling device thereof |
| GB2556073A (en) * | 2016-11-17 | 2018-05-23 | St Neots Prec Limited | Moveable platform |
| CN108382385A (en) * | 2018-03-15 | 2018-08-10 | 北京特种机械研究所 | A kind of air cushion suspended transport vehicle wheel group protective device |
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| CN110615021B (en) | 2021-02-09 |
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