CN211539260U

CN211539260U - Heat exchanger repairing device

Info

Publication number: CN211539260U
Application number: CN201922202925.5U
Authority: CN
Inventors: 张佳; 张文梨; 黄威; 刘波; 康扬; 罗兴涛; 刘爽
Original assignee: Gree Electric Appliances Inc of Zhuhai; Gree Wuhan Electric Appliances Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Gree Wuhan Electric Appliances Co Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-09-22
Anticipated expiration: 2029-12-10

Abstract

The utility model provides a heat exchanger reprocesses device relates to air conditioner technical field, has solved the heat exchanger that exists among the prior art and has reprocessed the expand tube in-process, and operator's intensity of labour is great, the lower technical problem of efficiency moreover. The device comprises a motor, a guide frame and an expansion rod; the expansion rod is connected with the guide frame and can enter a copper pipe of the heat exchanger for pipe expansion; the motor can drive the guide frame and the expansion rod to face or be far away from the heat exchanger. The utility model discloses a motor drives the expander roll removal and realizes reprocessing the expand tube operation of copper pipe to heat exchanger, and is lower to operator's requirement, greatly reduced operator's intensity of labour, also can raise the efficiency simultaneously, can reduce the operator quantity of reprocessing the post. In addition, the repair of the heat exchanger is changed from complete manual operation to automatic operation driven by a motor, so that the pipe expanding operation is easy to control, and the repair consistency is realized.

Description

Heat exchanger repairing device

Technical Field

The utility model belongs to the technical field of the air conditioner technique and specifically relates to a device is reprocessed to heat exchanger is related to.

Background

In the production and turnover process of the air conditioner heat exchanger (including a condenser and an evaporator), the phenomena of copper pipe flattening, bruising and the like are easy to occur, which can affect the integral heat exchange performance and the service life of the air conditioner. In order to improve the product quality and reduce the possible loss, the copper pipe which is flattened and damaged by collision needs to be drawn and repaired.

The existing tube drawing and repairing is to use a manual air gun by an operator to perform tube drawing, tube replacement and tube expansion operations on a copper tube, wherein the tube expansion operation is particularly important. The expanding tube expands the diameter of the copper tube, so that the copper tube is tightly combined with the fins, the looseness is avoided, and the heat conducting performance of the heat exchanger is improved, so that good heat transfer and heat conduction are ensured. The pipe expanding operation process has higher requirement on the skill of an operator, the labor intensity of the operator is higher, and the efficiency is lower. The copper pipe of the horizontal air-conditioning heat exchanger is generally a long straight pipe, and the possibility of automatic pipe expansion operation of repair is provided.

The applicant has found that the prior art has at least the following technical problems:

in the tube expanding process of the prior heat exchanger repair, the labor intensity of operators is high, and the efficiency is low.

Disclosure of Invention

An object of the utility model is to provide a heat exchanger reprocesses device to solve the heat exchanger that exists among the prior art and reprocess the expand tube in-process, operator's intensity of labour is great, the lower technical problem of efficiency moreover. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a heat exchanger repairing device, which comprises a motor, a guide frame and an expansion rod; the expansion rod is connected with the guide frame and can enter a copper pipe of the heat exchanger for pipe expansion; the motor can drive the guide frame and the expansion rod to face or be far away from the heat exchanger.

Optionally, the guide frame comprises a guide template and a guide rod; the expansion rod is connected with the guide template; the guide template is sleeved with the guide rod; the guide template and the guide rod are enclosed into a rectangular framework structure.

Optionally, the number of the guide rods is two, and the guide rods are located on two sides of the framework structure; the two guide rods are parallel to the expansion rod.

Optionally, the motor drives the guide frame to move by rotating a lead screw; the rotary screw rod is positioned between the two guide rods and is parallel to the two guide rods.

Optionally, the rotary screw rod is further connected with a bolt fixing plate, and the bolt fixing plate is detachably connected with the guide frame.

Optionally, the bolt fixing plate is connected with the guide template through a screw, and the bolt fixing plate is in clearance fit with the guide rod.

Optionally, the guide template can fix at least two expansion rods.

Optionally, the heat exchanger repair device further comprises a fixing frame capable of fixing the heat exchanger.

Optionally, a receiver is further connected to the fixed frame, and the receiver can limit the movement of the expansion rod.

Optionally, the heat exchanger reconditioning device further comprises a workbench; the workbench can bear the guide frame, the fixing frame and the heat exchanger.

Any technical scheme can at least produce the following technical effects:

the utility model discloses a motor drives the expander roll removal and realizes reprocessing the expand tube operation of copper pipe to heat exchanger, lower to operator's requirement, only need put, take heat exchanger can, solved and reprocessed the post and need experienced the problem of abundant operator, greatly reduced operator's intensity of labour, also can raise the efficiency simultaneously, can reduce the operator quantity of reprocessing the post. In addition, the repair of the heat exchanger is changed from complete manual operation to automatic operation driven by a motor, so that the pipe expanding operation is easy to control, the repair difficulty and the experience requirements of operators are reduced, and the repair consistency is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of a heat exchanger reconditioning device;

FIG. 2 is a first side view of the heat exchanger reconditioning device;

FIG. 3 is a second side view of the heat exchanger reconditioning device;

fig. 4 is a perspective view of the heat exchanger reconditioning device.

In the figure 1, a motor; 11. rotating the lead screw; 12. a bolt fixing plate; 2. a guide frame; 21. guiding the template; 22. a guide bar; 23. a track; 3. expanding rods; 4. a fixed mount; 5. a receiver; 6. a work table; 61. a support; 62. a connecting seat; 7. a heat exchanger.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a heat exchanger reprocesses device, as shown in fig. 1-4, including motor 1, leading truck 2 and expander roll 3. The expansion rod 3 is connected with the guide frame 2, and synchronous movement of the expansion rod 3 and the guide frame 2 is realized. The expansion rod 3 is also provided with an expansion head, the expansion rod 3 can enter the copper pipe of the heat exchanger 7 to expand the pipe, and the repair operation of the heat exchanger is realized after the copper pipe is expanded. Motor 1 can drive leading truck 2 and expander roll 3 towards or keep away from heat exchanger 7, and when motor 1 drove leading truck 2 and moved towards heat exchanger 7, expander roll 3 also moved to heat exchanger 7 in step. Before motor 1 drives the expander roll 3 and removes to heat exchanger 7, treat the copper pipe of expand tube with expander roll 3 position and heat exchanger 7 and align, motor 1 promotes expander roll 3 and removes the back, has just accomplished the expand tube operation to the copper pipe, then reverses motor 1, drives leading truck 2 and removes to the direction of keeping away from heat exchanger 7, and expander roll 3 withdraws from in the copper pipe, can take back heat exchanger 7, accomplishes the expand tube operation to changing back copper pipe. The utility model discloses a motor 1 drives the expander roll 3 and removes the expander roll operation that realizes reprofiling the copper pipe to heat exchanger 7, lower to operator's requirement, only need put, take heat exchanger 7 can, solved and reprocessed the post and need experienced operator's problem, greatly reduced operator's intensity of labour, also can raise the efficiency simultaneously, can reduce the operator's quantity of reprocessing the post. In addition, the copper pipe repairing of the heat exchanger 7 is changed from complete manual operation to automatic operation driven by the motor 1, so that the pipe expanding operation is easy to control, the repairing difficulty and the experience requirements of operators are reduced, and the repairing consistency is realized.

As an alternative embodiment, as shown in fig. 1, 2 and 4, the guide frame 2 includes a guide template 21 and a guide rod 22, and the guide frame 2 is used for fixing the expansion rod 3 and driving the expansion rod 3 by the motor 1. The guide template 21 is two plate-shaped structures which are oppositely arranged, and the expansion rod 3 is connected with the guide template 21; the expansion rod 3 can be connected with the guide template 21 in an interference fit mode. The expansion rod 3 is also fixed by the guide template 21 in an interlocking structure mode (the head of the expansion rod 3 is provided with a groove, after the expansion rod 3 passes through the first guide template 21, the second guide template 21 is pulled by external force to cause the two guide templates 21 to be staggered, and the clamping groove of the expansion rod 3 is fixed at the staggered position of the second guide template 21, so that the expansion rod 3 and the guide templates 21 are fixed, and the fixing mode is the same as that of the existing pipe expander). The guide template 21 and the guide rod 22 are sleeved with each other, the guide template 21 is provided with a through hole, and the through hole is in clearance fit with the guide rod 22, so that the sleeve connection and fixation between the guide template 21 and the guide rod 22 are realized. The guide templates 21 and the guide rods 22 are enclosed to form a rectangular framework structure, the guide templates 21 and the guide rods 22 are perpendicular to each other, the guide templates 21 and the guide rods 22 form the length and the width of the rectangular framework structure, and when the guide templates 21 and the guide rods 22 are sleeved, the guide templates 21 can be added in front of the two guide templates 21, so that the guide rods 22 and the expansion rods 3 can be better fixed. The number of the guide rods 22 is two, and the two guide rods 22 are located on two sides of the framework structure, and the two guide rods 22 can be more beneficial to guiding the expansion rod 3. Two guide bars 22 are all parallel to each other with the expander roll 3, avoid the expander roll 3 to take place the skew at the removal in-process, influence the expand tube operation to the copper pipe.

As an alternative embodiment, as shown in fig. 1, 2, and 4, the motor 1 drives the guide frame 2 to move through the rotating screw 11, a motor shaft of the motor 1 is connected to the rotating screw 11 in a key manner, the rotating screw 11 is driven to rotate synchronously after the motor 1 rotates, and a structure similar to a ball nut pair (the same as the principle of the ball screw) is provided on the rotating screw 11, so that the rotating motion can be converted into a linear motion of the ball nut pair, and the guide frame 2 is driven to move synchronously and linearly through the ball nut pair. Rotatory lead screw 11 is located between two guide bars 22 to be parallel to each other with two guide bars 22, preferred rotatory lead screw 11 is located the intermediate position of two guide bars 22, thereby whole leading truck 2's atress is more even, realizes that rotatory lead screw 11 better drives the removal of leading truck 2, is difficult to take place the skew. Rotatory lead screw 11 still is connected with bolt fastening board 12, bolt fastening board 12 is provided with the internal thread, with rotatory lead screw threaded connection, thereby can realize that the rotary motion of rotatory lead screw 11 turns into the linear motion of bolt fastening board 12, bolt fastening board 12 also can set up the arc helicla flute that matches with rotatory lead screw 11, and fill the ball in inside, thereby be rolling friction between rotatory lead screw 11 and the bolt fastening board 12, realize the transmission of motor 1 to leading truck 2 more easily. The bolt fixing plate 12 is detachably connected with the guide frame 2, so that the matched guide frame 2 can be replaced conveniently according to different types of heat exchangers 7. Bolt fastening board 12 and guide template 21 screwed connection have realized bolt fastening board 12 to the drive of guide template 21, and bolt fastening board 12 carries out clearance fit with guide bar 22 to can interact each other between bolt fastening board 12 and the guide bar 22, make guide bar 22 play the effect of direction. Preferably, a rail 23 is further provided on the table 6 directly below the guide bar 22, and the rail 23 abuts against the bolt securing plate 12, so that the friction force of the movement of the bolt securing plate 12 is reduced, and the motor 1 can more easily drive the guide die plate 21 and the expansion bar 3 to move by rotating the screw rod 11 and the bolt securing plate 12.

As an alternative embodiment, the guide template 21 can fix at least two expansion rods 3, and at least two circular holes matched with the expansion rods 3 in size can be formed in the guide template 21, so as to install and fix at least two expansion rods 3. During actual operation, can be according to the copper pipe quantity and the position that need carry out the expand tube operation among the heat exchanger 7, the expander roll 3 of the same quantity is installed to the relevant position at guide template 21 to can realize once the expand tube operation to many copper pipes, and original manual repair process need be repeated to carry out repeated expand tube operation to each copper pipe, realized the promotion by a wide margin of repairing efficiency. Simultaneously, when many copper pipes all need the expand tube, because manual expand tube at every turn can only expand a pipe, lead to appearing the expand tube degree of depth nonconformity of different copper pipes, fin not hard up etc. unusually, behind two expander rolls 3 can be fixed at least to direction template 21, just once can realize the expand tube of many copper pipes, the displacement of expander roll 3 is the same moreover, has guaranteed that the expand tube degree of depth of every copper pipe is unanimous, the fin can not appear not become flexible etc. unusually.

As an alternative embodiment, as shown in fig. 1 to 4, the heat exchanger repairing apparatus further includes a fixing frame 4, the fixing frame 4 can move according to the position of the expansion rod 3 to align with the expansion rod 3, the fixing frame 4 can fix the heat exchanger 7, and preferably, the fixing frame 4 is a C-shaped groove structure with two parallel sides, and can be connected with the heat exchanger 7 by clamping, or can be connected with the heat exchanger 7 by screws or the like. Still be connected with receiver 5 on the mount 4, receiver 5 and mount 4 mutually perpendicular play the effect of base, and is the same with current expand tube receiver structure to match with the size of expander roll 3, expander roll 3 can block expander roll 3 with receiver 5 butt and carry out further movement after moving to heat exchanger 7, avoid the expander roll in-process expander roll 3 the removal distance too far away, the removal that expander roll 3 can be injectd to receiver 5 promptly. The heat exchanger repairing device also comprises a workbench 6; the table 6 can support the guide frame 2, the fixing frame 4, and the heat exchanger 7, and the table 6 is located below the guide frame 2, the fixing frame 4, and the heat exchanger 7. The frame of the table 6 can also be fixed to the motor 1 by means of a screw connection. The workbench 6 supports the fixing frame 4 through the support 61, the workbench is fixedly connected with the support 61 through bolts, and the fixing frame 4 and the support 61 can be fixed through clamping, bolt connection and the like. In addition, workstation 6 is bolted connection still has connecting seat 62, sets up on the connecting seat 62 because the through-hole that guide bar 22 matches (the height of through-hole, size and guide bar 22 match), and guide bar 22 can be with through-hole interference fit, and connecting seat 62 has realized fixing the one end of guide bar 22, is favorable to guide bar 22 to better play the guide effect to guide template 21 and expander roll-out 3. The expanding rod 3, the expanding head and the receiver 5 are replaced, so that the expanding requirements of copper pipes with different diameters can be met; meanwhile, the sizes of the fixing frames 4 (namely the spacing distance between the two fixing frames 4 and the length of the fixing frames 4) are adjusted, and the expansion of the heat exchangers 7 with different sizes and specifications can be realized, so that the universality of the repair device is improved.

The utility model provides a heat exchanger reprocesses device working process as follows: firstly, the tube drawing and replacing are carried out on the copper tube which is flattened and damaged by collision, and then the heat exchanger 7 is fixed on the fixed frame 4. And installing the same number of expansion rods 3 at corresponding through hole positions on the guide template 21 according to the position of the copper pipe subjected to pipe replacement. The positions of the fixed frame 4, the receiver and the heat exchanger 7 are adjusted on the support 61, so that the positions of the expansion rod 3, the copper pipe of the heat exchanger 7 and the receiver are aligned with each other. Starting the motor 1, the motor 1 drives the rotary screw rod 11 to rotate, and pushes the bolt fixing plate 12 to move towards the heat exchanger 7, so as to drive the guide template 21 and the expansion rod 3 connected with the guide template to move towards the heat exchanger 7. Then the expanding rod 3 enters the inside of the copper pipe for expanding the pipe until the expanding rod 3 abuts against the receiver 5, and the expanding of the copper pipe is completed. And finally, the motor 1 rotates reversely, the expansion rod 3 is taken out of the copper pipe, and the heat exchanger 7 is taken out of the fixed frame 4.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A heat exchanger repairing device is characterized by comprising a motor, a guide frame and an expansion rod; the expansion rod is connected with the guide frame and can enter a copper pipe of the heat exchanger for pipe expansion; the motor can drive the guide frame and the expansion rod to face or be far away from the heat exchanger.

2. The heat exchanger reprocessing apparatus according to claim 1, wherein said guide frame includes a guide template and a guide bar; the expansion rod is connected with the guide template; the guide template is sleeved with the guide rod; the guide template and the guide rod are enclosed into a rectangular framework structure.

3. The heat exchanger reprocessing apparatus according to claim 2, wherein said guide bars are two in number and located on both sides of said framework structure; the two guide rods are parallel to the expansion rod.

4. The heat exchanger reprocessing device according to claim 2, wherein said motor moves said guide frame by rotating a lead screw; the rotary screw rod is positioned between the two guide rods and is parallel to the two guide rods.

5. The heat exchanger reprocessing device according to claim 4, wherein a bolt fixing plate is further connected to said rotary lead screw, and said bolt fixing plate is detachably connected to said guide frame.

6. The heat exchanger reprocessing device according to claim 5, wherein said bolt securing plate is in screw connection with said guide template, said bolt securing plate being in clearance fit with said guide bar.

7. The heat exchanger rework device of claim 2, wherein the guide template is capable of securing at least two of the expansion rods.

8. The heat exchanger reconditioning device of any one of claims 1-7, further comprising a fixture, said fixture capable of securing said heat exchanger.

9. The heat exchanger reprocessing apparatus according to claim 8, wherein a receiver is further connected to said fixture, said receiver being capable of limiting movement of said expander rod.

10. The heat exchanger rehabilitation apparatus according to claim 8, further comprising a work bench; the workbench can bear the guide frame, the fixing frame and the heat exchanger.