CN108031759B - Tube expander - Google Patents
Tube expander Download PDFInfo
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- CN108031759B CN108031759B CN201711244429.5A CN201711244429A CN108031759B CN 108031759 B CN108031759 B CN 108031759B CN 201711244429 A CN201711244429 A CN 201711244429A CN 108031759 B CN108031759 B CN 108031759B
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- Prior art keywords
- expansion rod
- expander
- expansion
- tube
- flaring
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- 230000007246 mechanism Effects 0.000 claims abstract description 116
- 239000002184 metal Substances 0.000 claims abstract description 18
- 239000000725 suspension Substances 0.000 claims description 40
- 230000005540 biological transmission Effects 0.000 claims description 38
- 238000003825 pressing Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention provides a tube expander, comprising: a working bottom plate; the rack body is arranged on the working bottom plate; the workbench mechanism is arranged on the working bottom plate, and the heat exchanger of the pipe to be expanded is arranged on the workbench mechanism; the expansion rod hanging mechanism is provided with a plurality of expansion rods and is arranged on the frame main body in a lifting manner, so that each expansion rod extends into the corresponding heat exchange tube of the heat exchanger to expand the heat exchange tube. The tube expander solves the problem of lower efficiency of the mode of processing the metal tube of the heat exchanger in the prior art.
Description
Technical Field
The invention relates to the field of heat exchanger processing, in particular to a tube expander.
Background
In the production process of the heat exchanger, the metal tube and the fins sleeved on the metal tube are tightly combined together, so that good heat transfer and heat conduction can be ensured, and the heat exchanger is light in weight and long in service life.
At present, the method adopted by people is to insert the expansion rod with the ball head into the metal pipe manually to expand the metal pipe, then withdraw the expansion rod, only one pipe can be expanded at a time, the labor intensity is high, and the production efficiency is low. And for the metal tube expansion of the large-scale heat exchanger, it is very difficult to have a tube expander which can expand the metal tube of the large-scale heat exchanger more than once and is convenient for the production of the heat exchanger.
Similarly, when the metal pipe is flared, the flaring device is manually utilized to flare, only one pipe can be flared at a time, the labor intensity is high, and the production efficiency is low. And the flaring of the metal tube of the large-scale heat exchanger is very difficult, and the flaring efficiency is lower.
In addition, in the prior art, the heat exchanger is difficult to position, the positioning effect of the heat exchanger cannot be guaranteed, and then when the expansion rod is utilized to expand the metal tube of the heat exchanger, or when the expander is utilized to expand the metal tube, the expander cannot accurately extend into the metal tube, so that the expansion rod and the expanding quality and the expanding tube and the expanding efficiency are reduced.
Disclosure of Invention
The invention mainly aims to provide a tube expander, which aims to solve the problem that the efficiency of a mode for processing a metal tube of a heat exchanger in the prior art is low.
In order to achieve the above object, the present invention provides a tube expander comprising: a working bottom plate; the rack body is arranged on the working bottom plate; the workbench mechanism is arranged on the working bottom plate, and the heat exchanger of the pipe to be expanded is arranged on the workbench mechanism; the expansion rod hanging mechanism is provided with a plurality of expansion rods and is arranged on the frame main body in a lifting manner, so that each expansion rod extends into the corresponding heat exchange tube of the heat exchanger to expand the heat exchange tube.
Further, the working table mechanism comprises a plurality of mounting parts for mounting the heat exchangers, and the working table mechanism is rotatably mounted on the working bottom plate so as to enable the expansion rod hanging mechanism to perform expansion treatment on the heat exchange tubes of the heat exchangers positioned on the corresponding mounting parts when each mounting part moves to a preset expansion tube position.
Further, the tube expander further comprises a door plate compressing mechanism, wherein the door plate compressing mechanism is arranged on the working bottom plate, and when each installation part is positioned at a preset tube expanding position, at least part of the door plate compressing mechanism is compressed on the heat exchanger positioned on the corresponding installation part.
Further, the tube expander further comprises: the flaring mechanism is arranged on the frame main body; the workbench mechanism comprises a plurality of mounting parts for mounting the heat exchanger and is rotatably mounted on the working bottom plate; when each mounting part moves to a preset flaring position, the flaring mechanism is used for flaring the heat exchange tube of the heat exchanger positioned on the corresponding mounting part.
Further, the flaring mechanism comprises a flaring device, the flaring device is provided with a flaring head for flaring the end part of the heat exchange tube, and the flaring head is movably arranged along the vertical direction so as to perform flaring treatment on the end part of the heat exchange tube.
Further, the expansion rod hanging mechanism and the flaring mechanism are respectively positioned on two opposite sides of the frame main body.
Further, the flaring mechanism includes: and a clamping assembly, at least part of which is telescopically arranged, the clamping assembly being pressed against the heat exchanger located on the respective mounting portion when the respective mounting portion is located in the predetermined flaring position.
Further, the tube expander further comprises: the expansion rod transmission assembly is arranged on the frame main body and comprises an expansion rod transmission screw rod which extends along the vertical direction, and the expansion rod transmission screw rod is arranged on the expansion rod suspension mechanism in a penetrating way so that the expansion rod suspension mechanism moves along the expansion rod transmission screw rod.
Further, the number of the expansion rod transmission screws is two, and the two expansion rod transmission screws are respectively arranged at the two opposite ends of the expansion rod hanging mechanism in a penetrating way.
Further, a fixed block is arranged on the working bottom plate, the frame main body is provided with a main beam, one end of the expansion rod transmission screw rod is fixed on the fixed block, and the other end of the expansion rod transmission screw rod is fixed on the main beam.
The pipe expander comprises a working bottom plate, a frame main body and a working table mechanism, wherein the frame main body and the working table mechanism are arranged on the working bottom plate, and when a heat exchanger needs to be expanded, the heat exchanger to be expanded is arranged on the working table mechanism, so that the positioning of the heat exchanger is realized, and the positioning effect of the heat exchanger can be ensured; in addition, the tube expander further comprises an expansion rod hanging mechanism, the expansion rod hanging mechanism is provided with a plurality of expansion rods, the expansion rod hanging mechanism is installed on the frame main body in a lifting mode, so that each expansion rod stretches into the corresponding heat exchange tube of the heat exchanger to expand the heat exchange tube, the expansion rod hanging mechanism of the tube expander can automatically perform tube expansion operation, labor intensity of workers is reduced, and the expansion rods can simultaneously perform tube expansion operation on the heat exchange tubes, and production efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 shows a schematic perspective view of an embodiment of a tube expander according to the present invention;
fig. 2 shows a front view of an embodiment of a tube expander according to the present invention;
fig. 3 shows a perspective view of a door plate hold-down mechanism of a tube expander according to the present invention;
fig. 4 shows a front view of the flaring mechanism of the tube expander according to the present invention;
FIG. 5 shows a cross-sectional view at A-A of the flaring mechanism of FIG. 4;
fig. 6 shows a schematic perspective view of the expander suspension mechanism of the expander of fig. 1;
FIG. 7 shows a front view of the expander suspension mechanism of the expander of FIG. 1;
FIG. 8 shows a top view of the expander suspension mechanism of the expander of FIG. 1;
FIG. 9 shows a cross-sectional view of the expander of FIG. 8 in section B-B of the expander suspension mechanism; and
fig. 10 shows an enlarged partial view of the expander of fig. 9 at i of the expander suspension mechanism.
Wherein the above figures include the following reference numerals:
1. a working bottom plate; 2. a frame body; 20. a main beam; 21. controlling the electric box assembly; 22. an operating platform; 3. a workbench mechanism; 30. a mounting part; 4. a door plate pressing mechanism; 52. an expansion rod hanging mechanism; 50. an expansion rod; 6. a flaring mechanism; 60. a mouth expander; 600. expanding the mouth; 61. a clamping assembly; 7. an expansion rod transmission assembly; 70. the expansion rod drives a screw rod; 510. a first expansion rod template; 511. a second expansion rod template; 512. the expansion rod adjusts the base; 513. the expansion rod adjusts the cross beam; 5130. a first lock plate slide rail; 514. the expansion rod adjusts a screw rod; 5140. the expansion rod adjusts the driven gear; 515. an expansion rod adjusting nut; 516. the expansion rod adjusts a driving motor; 5161. the expansion rod adjusts a transmission chain; 517. an expansion rod adjusting mounting plate; 518. the expansion rod adjusts the tensioning chain wheel; 519. the expansion rod adjusts the compression wheel; 520. a first expansion rod suspension assembly; 5200. a first expansion rod; 5201. a first expansion rod locking plate; 5202. a head; 5203. a first expansion rod hanging hole; 5204. a first expansion rod lock hole; 5205. a first expansion rod shielding part; 5206. a first lock plate driving cylinder; 521. a second expansion rod suspension assembly; 5210. a second expansion rod; 5211. a second expansion rod locking plate; 5215. a second lock plate driving cylinder; 522. the expansion rod supports the bracket.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The present invention provides a tube expander, please refer to fig. 1 to 10, comprising: a work base plate 1; the rack body 2, the rack body 2 is installed on the working bottom plate 1; the workbench mechanism 3 is arranged on the working bottom plate 1, and the heat exchanger of the tube to be expanded is arranged on the workbench mechanism 3; the expansion rod hanging mechanism 52 has a plurality of expansion rods 50, and the expansion rod hanging mechanism 52 is liftably mounted on the frame body 2 so that each expansion rod 50 extends into a corresponding heat exchange tube of the heat exchanger to expand the heat exchange tube.
The pipe expander comprises a working bottom plate 1, a frame main body 2 and a workbench mechanism 3, wherein the frame main body 2 and the workbench mechanism 3 are arranged on the working bottom plate 1, and when a heat exchanger needs to be expanded, the heat exchanger to be expanded is arranged on the workbench mechanism 3, so that the positioning of the heat exchanger is realized, and the positioning effect of the heat exchanger can be ensured; in addition, the tube expander further comprises an expansion rod hanging mechanism 52, the expansion rod hanging mechanism 52 is provided with a plurality of expansion rods 50, the expansion rod hanging mechanism 52 is arranged on the frame main body 2 in a lifting mode, so that each expansion rod 50 stretches into the corresponding heat exchange tube of the heat exchanger to expand the heat exchange tube, the expansion rod hanging mechanism 52 of the tube expander can automatically perform tube expansion operation, labor intensity of workers is reduced, and the expansion rods 50 can simultaneously perform tube expansion operation on the heat exchange tubes, and production efficiency is improved.
The heat exchange tube of the heat exchanger is a metal tube.
In the present embodiment, as shown in fig. 1, the table mechanism 3 includes a plurality of mounting portions 30 for mounting the heat exchangers, and the table mechanism 3 is rotatably mounted on the work base plate 1 to cause the expander hanging mechanism 52 to perform the expander process for the heat exchange tubes of the heat exchangers located on the respective mounting portions 30 when the respective mounting portions 30 are moved to predetermined expander positions.
In order to secure the heat exchanger, as shown in fig. 3, the tube expander further comprises a door pressing mechanism 4, wherein the door pressing mechanism 4 is mounted on the working base plate 1, and when each mounting portion 30 is located at a predetermined tube expanding position, at least part of the door pressing mechanism 4 is pressed against the heat exchanger located on the corresponding mounting portion 30. The arrangement avoids the deviation of the position of the heat exchanger in the tube expansion process, ensures the positioning effect of the heat exchanger, and further improves the accuracy, quality and efficiency of tube expansion operation by accurately extending the expansion rod into the heat exchange tube when the expansion rod is used for expanding the metal tube of the heat exchanger.
In order to perform flaring operation on the heat exchange tube passing through the tube expander, as shown in fig. 2, the tube expander further comprises a flaring mechanism 6, and the flaring mechanism 6 is mounted on the frame main body 2; the workbench mechanism 3 comprises a plurality of mounting parts for mounting the heat exchanger, and the workbench mechanism 3 is rotatably mounted on the working base plate 1; the flaring mechanism 6 is used to perform flaring treatment for the heat exchange tubes of the heat exchanger located on the respective mounting portions when the respective mounting portions are moved to the predetermined flaring positions. The flaring mechanism 6 can automatically perform flaring operation, so that the labor intensity of workers is reduced, and the production efficiency is improved.
In particular, as shown in fig. 4, the flaring mechanism 6 includes a flaring device 60, the flaring device 60 has a flaring head 600 for flaring the end of the heat exchange tube, and the flaring head 600 is movably disposed in the vertical direction to perform flaring treatment on the end of the heat exchange tube.
In this embodiment, the expansion rod hanging mechanism 52 and the flaring mechanism 6 are respectively located at opposite sides of the frame main body 2, and after the expansion rod hanging mechanism 52 completes the expansion of the heat exchange tube, the workbench mechanism 3 rotates 180 ° and moves to a predetermined flaring position, thereby further completing the flaring of the heat exchange tube.
To fix the heat exchanger, only to complete the flaring operation of the heat exchange tube, the flaring mechanism 6 comprises a clamping assembly 61, at least part of the clamping assembly 61 being telescopically arranged, the clamping assembly 61 being pressed against the heat exchanger located on the respective mounting portion 30 when the respective mounting portion 30 is located in the predetermined flaring position. The positioning effect of the heat exchanger is guaranteed through the arrangement, and when the flaring device is utilized to flare the heat exchange tube of the heat exchanger, the flaring device can accurately stretch into the replacement tube, and the flaring quality and the flaring efficiency are improved.
In order to move the expander suspension mechanism 52 in a predetermined direction, the expander further includes an expander transmission assembly 7, the expander transmission assembly 7 being provided on the frame body 2, the expander transmission assembly 7 including an expander transmission screw 70, the expander transmission screw 70 extending in a vertical direction, the expander transmission screw 70 being provided to pass through the expander suspension mechanism 52 to move the expander suspension mechanism 52 along the expander transmission screw 70.
In specific implementation, the number of the expansion rod transmission screws 70 is two, and the two expansion rod transmission screws 70 are respectively arranged at the opposite ends of the expansion rod suspension mechanism 52 in a penetrating way, so that the smoothness and stability of the movement process of the expansion rod suspension mechanism 52 are ensured.
In order to mount and fix the expansion link driving screw 70, a fixing block is provided on the work floor 1, the frame body 2 has a main beam 20, one end of the expansion link driving screw 70 is fixed on the fixing block, and the other end of the expansion link driving screw 70 is fixed on the main beam 20.
In this embodiment, as shown in fig. 2, the tube expander includes a control box assembly 21, and the control box assembly 21 is connected to the work floor 1 and is detachably provided. The control electric box assembly 21 is used for controlling the on and off of a power supply, the automatic starting and stopping of a tube expander, the up-and-down movement and emergency stop of the tube expander and the alarm.
In this embodiment, as shown in fig. 2, the tube expander further includes an operation platform 22, and the operation platform 22 is fixedly connected to the frame main body 2.
In this embodiment, referring to fig. 6 to 10, the expander suspension mechanism 52 includes a first expander suspension element 520, and the first expander suspension element 520 includes: a first expansion rod die plate 510 for suspending a plurality of first expansion rods 5200, the plurality of first expansion rods 5200 being used for performing a tube expansion operation on a first group of metal tubes of the heat exchanger located on the table mechanism; the first expansion rod lock plate 5201 is adjustably mounted above the first expansion rod die plate 510 in position for shielding the head 5202 of the first expansion rod 5200 to stop the first expansion rod 5200 on the first expansion rod die plate 510.
This expansion rod hangs mechanism 52 through setting up first expansion rod template and hangs a plurality of first expansion rods in order to carry out the operation of expanding tube to a plurality of heat transfer tubes to, adopt first expansion rod jam plate to fix a plurality of first expansion rods, and then, a plurality of first expansion rods can realize carrying out the operation of expanding tube to a plurality of heat transfer tubes simultaneously, have improved production efficiency, have reduced staff's intensity of labour, and have guaranteed the reliability of carrying out the operation of expanding tube to the heat transfer tube.
In order to install the first expansion rod 5200, the first expansion rod template 510 is provided with a first expansion rod hanging hole 5203 for the first expansion rod 5200 to pass through, the first expansion rod hanging hole 5203 is a step hole, and a head 5202 of the first expansion rod 5200 is limited on the step of the first expansion rod hanging hole 5203.
In order to realize the stopping function on the first expansion rod 5200, the first expansion rod locking plate 5201 is provided with a plurality of first expansion rod locking holes 5204, and a first expansion rod shielding part 5205 for shielding the head 5202 of the first expansion rod 5200 is formed between two adjacent first expansion rod locking holes 5204; the first expansion rod lock plate 5201 is movably disposed above the first expansion rod die plate 510 such that the first expansion rod shielding portion 5205 is shielded above the corresponding first expansion rod hanging hole 5203 or is moved away from above the first expansion rod hanging hole 5203.
To drive the first expansion rod lock plate 5201, the first expansion rod suspension assembly 520 further includes a first lock plate driving cylinder 5206, a piston rod of the first lock plate driving cylinder 5206 is connected to the first expansion rod lock plate 5201 to drive the first expansion rod lock plate 5201 to move so that the first expansion rod lock plate 5201 shields or evades the head 5202 of the first expansion rod 5200.
To mount and secure the second expander die plate 511 and the first expander lock plate 5201, the first expander suspension assembly 520 includes an expander adjustment beam 513, with both the first expander die plate 510 and the first expander lock plate 5201 mounted on the expander adjustment beam 513.
In particular embodiments, the expansion rod adjusting beam 513 is provided with a first lock plate slide 5130, the first lock plate slide 5130 has a first lock plate slide slot, and the first expansion rod lock plate 5201 is slidably mounted in the first lock plate slide slot.
In this embodiment, the expansion rod suspension mechanism further includes a second expansion rod suspension assembly 521, the second expansion rod suspension assembly 521 being disposed below the first expansion rod suspension assembly 520, the first expansion rod suspension assembly 520 being movably disposed with respect to the second expansion rod suspension assembly 521.
In particular embodiments, the second expansion rod hanging assembly 521 includes a second expansion rod template 511 and a second expansion rod lock plate 5211, the second expansion rod template 511 is used to hang a plurality of second expansion rods 5210, and the plurality of second expansion rods 5210 are used to expand a second group of metal tubes of the heat exchanger located on the table mechanism; the second expander lock plate 5211 is adjustably mounted above the second expander die plate 511 for shielding the head of the second expander to stop the second expander against the second expander die plate 511.
In order to install the second expansion rod 5210, a hanging hole for the second expansion rod 5210 to pass through is formed in the second expansion rod template 511, the second expansion rod hanging hole is a step hole, and the head of the second expansion rod 5210 is limited on the step of the first expansion rod hanging hole.
In order to achieve the stopping effect on the second expansion rod, the second expansion rod locking plate 5211 is provided with a plurality of second expansion rod locking holes, and a second expansion rod shielding part for shielding the head of the second expansion rod 5210 is formed between two adjacent second expansion rod locking holes; the second expander lock plate 5211 is movably disposed above the second expander die plates 511 such that the second expander shielding portions are shielded above or removed from the respective second expander suspension apertures.
To drive the second expansion rod lock plate 5211, the second expansion rod suspension assembly 521 further includes a second lock plate driving cylinder 5215, and a piston rod of the second lock plate driving cylinder 5215 is connected to the second expansion rod lock plate 5211 to drive the second expansion rod lock plate 5211 to move so that the second expansion rod lock plate 5211 shields or avoids the head of the second expansion rod.
To mount and secure the second expansion cylinder die plate 511 and the second expansion cylinder lock plate 5211, the second expansion cylinder suspension assembly 521 further includes an expansion cylinder adjustment base 512, and the second expansion cylinder die plate 511 and the second expansion cylinder lock plate 5211 are mounted on the expansion cylinder adjustment base 512.
The expansion rod suspension mechanism further comprises an expansion rod support bracket 522, wherein the expansion rod support bracket 522 is arranged below the second expansion rod suspension assembly 521, and a plurality of first expansion rods 5200 and a plurality of second expansion rods are all arranged on the expansion rod support bracket 522 in a penetrating manner, so that the expansion rod support bracket 522 supports the plurality of first expansion rods 5200 and the plurality of second expansion rods.
In order to achieve the moving movement of the first expansion die plate 510 relative to the second expansion die plate 511, the expansion-rod adjusting mechanism further comprises an expansion-rod adjusting screw 514, the expansion-rod adjusting screw 514 being rotatably mounted on the expansion-rod adjusting cross beam 513; the expansion rod adjusting nut 515 is matched with the expansion rod adjusting screw rod 514, the expansion rod adjusting nut 515 is arranged on the expansion rod adjusting base 512, and the expansion rod adjusting screw rod 514 is arranged in the expansion rod adjusting nut 515 in a penetrating mode, so that the expansion rod adjusting cross beam 513 moves in the vertical direction under the driving of the expansion rod adjusting screw rod 514.
In particular, the number of expansion rod adjusting screws 514 is two, and the two expansion rod adjusting screws 514 are respectively arranged at two opposite ends of the second expansion rod template 511.
In this embodiment, the expansion rod adjusting mechanism further includes an expansion rod adjusting driving motor 516, the expansion rod adjusting driving motor 516 is mounted on the expansion rod adjusting cross beam 513, an expansion rod adjusting driving gear is disposed on an output shaft of the expansion rod adjusting driving motor 516, an expansion rod adjusting driven gear 5140 is disposed on the expansion rod adjusting screw 514, and an expansion rod adjusting transmission chain 5161 is sleeved on the expansion rod adjusting driving gear and the expansion rod adjusting driven gear 5140.
In specific implementation, the number of the expansion rod adjusting driven gears 5140 is two, namely a first expansion rod adjusting driven gear and a second expansion rod adjusting driven gear, and the two expansion rod adjusting driven gears 5140 are respectively arranged at the upper ends of the two expansion rod driving lead screws.
When the height of the first expansion rod template 510 relative to the second expansion rod template 511 is adjusted, the expansion rod adjusting driving motor 516 drives the expansion rod adjusting driving gear to rotate, and the expansion rod adjusting driving gear synchronously rotates the expansion rod adjusting driven gear 5140 under the action of the expansion rod adjusting transmission chain 5161, so that the expansion rod adjusting driven gear 5140 drives the expansion rod adjusting screw 514 to move, and the first expansion rod template 510 moves along the vertical direction.
In order to install the fixed expansion rod adjusting driving motor 516, the expansion rod adjusting mechanism further comprises an expansion rod adjusting mounting plate 517, the expansion rod adjusting mounting plate 517 is mounted on the expansion rod adjusting cross beam 513, and the expansion rod adjusting driving motor 516 is mounted on the expansion rod adjusting cross beam 513.
In this embodiment, the expansion rod adjusting mechanism further includes an expansion rod adjusting tension sprocket 518, and the expansion rod adjusting tension sprocket 518 is disposed inside the expansion rod adjusting transmission chain 5161 and engaged with the expansion rod adjusting transmission chain 5161. By the arrangement, the tension of the expansion rod adjusting transmission chain 5161 is ensured, and further, the expansion rod adjusting transmission chain is reliably transmitted.
In particular, the expansion rod adjusting mechanism comprises a first expansion rod adjusting tensioning sprocket assembly and a second expansion rod adjusting tensioning sprocket assembly, the first expansion rod adjusting tensioning sprocket assembly is arranged on one side close to the first expansion rod adjusting driven gear, the second expansion rod adjusting tensioning sprocket assembly is arranged on one side close to the second expansion rod adjusting driven gear, and each expansion rod adjusting tensioning sprocket assembly comprises two expansion rod adjusting tensioning sprockets 518.
In this embodiment, the expansion rod adjusting mechanism further includes an expansion rod adjusting and pressing wheel 519, and the expansion rod adjusting and pressing wheel 519 is disposed outside the expansion rod adjusting and driving chain 5161 and pressed against the expansion rod adjusting and driving chain 5161. Therefore, the wrap angle of the expansion rod adjusting driving gear is increased, so that the transmission of the expansion rod adjusting transmission chain is stable, and the expansion rod adjusting transmission chain is prevented from falling off.
In specific implementation, the number of the expansion rod adjusting and compressing wheels 519 is two, and the two expansion rod adjusting and compressing wheels 519 are respectively positioned at two sides of the expansion rod adjusting and driving gear. In this way, the stress on the two sides of the expansion rod adjusting transmission chain 5161 pressed by the expansion rod adjusting pressing wheel 519 is the same, and the reliable transmission of the expansion rod adjusting transmission chain is ensured.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
the pipe expander comprises a working bottom plate 1, a frame main body 2 and a workbench mechanism 3, wherein the frame main body 2 and the workbench mechanism 3 are arranged on the working bottom plate 1, and when a heat exchanger needs to be expanded, the heat exchanger to be expanded is arranged on the workbench mechanism 3, so that the positioning of the heat exchanger is realized, and the positioning effect of the heat exchanger can be ensured; in addition, the tube expander further comprises an expansion rod hanging mechanism 52, the expansion rod hanging mechanism 52 is provided with a plurality of expansion rods 50, the expansion rod hanging mechanism 52 is arranged on the frame main body 2 in a lifting mode, so that each expansion rod 50 stretches into the corresponding heat exchange tube of the heat exchanger to expand the heat exchange tube, the expansion rod hanging mechanism 52 of the tube expander can automatically perform tube expansion operation, labor intensity of workers is reduced, and the expansion rods 50 can simultaneously perform tube expansion operation on the heat exchange tubes, and production efficiency is improved.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of being practiced otherwise than as specifically illustrated and described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A tube expander, comprising:
a work floor (1);
the rack main body (2), the rack main body (2) is installed on the working bottom plate (1);
the workbench mechanism (3), the workbench mechanism (3) is arranged on the working bottom plate (1), and the heat exchanger of the pipe to be expanded is arranged on the workbench mechanism (3);
an expansion rod suspension mechanism (52) having a plurality of expansion rods (50), the expansion rod suspension mechanism (52) being liftably mounted on the frame body (2) such that each expansion rod (50) extends into a corresponding heat exchange tube of the heat exchanger to expand the heat exchange tube;
the expander suspension mechanism (52) comprises a first expander suspension assembly (520), the first expander suspension assembly (520) comprising:
a first expansion rod template (510) for suspending a plurality of first expansion rods (5200), wherein the plurality of first expansion rods (5200) are used for performing pipe expansion operation on a first group of metal pipes of the heat exchanger positioned on the workbench mechanism (3);
the first expansion rod locking plate (5201) is adjustably arranged above the first expansion rod template (510) in position and is used for shielding the head (5202) of the first expansion rod (5200) so as to stop the first expansion rod (5200) on the first expansion rod template (510).
2. A tube expander as claimed in claim 1, wherein the table means (3) comprises a plurality of mounting portions (30) for mounting the heat exchangers, the table means (3) being rotatably mounted on the work base plate (1) to cause the expander suspension mechanism (52) to expand the heat exchange tubes of the heat exchangers located on the respective mounting portions (30) when each of the mounting portions (30) is moved to a predetermined expander position.
3. Tube expander according to claim 2, characterized in that it further comprises a door plate compression mechanism (4), said door plate compression mechanism (4) being mounted on said work floor (1), at least part of said door plate compression mechanism (4) being compressed against said heat exchanger on the respective mounting portion (30) when the respective mounting portion (30) is in said predetermined tube expansion position.
4. The tube expander of claim 1, further comprising:
the flaring mechanism (6) is arranged on the frame main body (2); the workbench mechanism (3) comprises a plurality of mounting parts (30) for mounting the heat exchanger, and the workbench mechanism (3) is rotatably mounted on the working bottom plate (1); when each mounting part (30) moves to a preset flaring position, the flaring mechanism (6) is used for flaring the heat exchange tube of the heat exchanger positioned on the corresponding mounting part (30).
5. Tube expander according to claim 4, characterized in that the flaring mechanism (6) comprises a flaring device (60), the flaring device (60) having a flaring head (600) for flaring the end of the heat exchange tube, the flaring head (600) being arranged movable in a vertical direction for flaring the end of the heat exchange tube.
6. Tube expander as claimed in claim 4, wherein said expander suspension mechanism (52) and said flaring mechanism (6) are located on opposite sides of said frame body (2), respectively.
7. Tube expander as claimed in claim 4, wherein said flaring mechanism (6) comprises:
-a clamping assembly (61), at least part of the clamping assembly (61) being telescopically arranged, the clamping assembly (61) pressing against the heat exchanger located on the respective mounting portion (30) when the respective mounting portion (30) is located in the predetermined flared position.
8. The tube expander of claim 1, further comprising:
the expansion rod transmission assembly (7), the expansion rod transmission assembly (7) is arranged on the frame main body (2), the expansion rod transmission assembly (7) comprises an expansion rod transmission screw (70), the expansion rod transmission screw (70) extends along the vertical direction, and the expansion rod transmission screw (70) is arranged on the expansion rod suspension mechanism (52) in a penetrating way, so that the expansion rod suspension mechanism (52) moves along the expansion rod transmission screw (70).
9. Tube expander according to claim 8, wherein there are two expander drive screws (70), two expander drive screws (70) being threaded at opposite ends of the expander suspension mechanism (52), respectively.
10. Tube expander according to claim 8, characterized in that the work floor (1) is provided with a fixed block, the frame body (2) has a main beam (20), one end of the expander drive screw (70) is fixed on the fixed block, and the other end of the expander drive screw (70) is fixed on the main beam (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711244429.5A CN108031759B (en) | 2017-11-30 | 2017-11-30 | Tube expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711244429.5A CN108031759B (en) | 2017-11-30 | 2017-11-30 | Tube expander |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108031759A CN108031759A (en) | 2018-05-15 |
| CN108031759B true CN108031759B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711244429.5A Active CN108031759B (en) | 2017-11-30 | 2017-11-30 | Tube expander |
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| Country | Link |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817243A (en) * | 2018-08-10 | 2018-11-16 | 珠海格力智能装备有限公司 | Door apparatus and electric tube expander with it |
| CN110405093B (en) * | 2019-08-15 | 2020-12-15 | 珠海格力智能装备有限公司 | Hang expander roll structure and have its electric tube expander |
| CN111299439B (en) * | 2020-04-07 | 2022-03-01 | 珠海格力智能装备有限公司 | Automatic positioning structure and expanding tube flaring system |
| CN111570641B (en) * | 2020-05-25 | 2022-09-27 | 珠海格力智能装备有限公司 | Pipe orifice aligning device and pipe expander with same |
| CN113145755A (en) * | 2021-04-16 | 2021-07-23 | 珠海格力智能装备有限公司 | Door plant mechanism, electric tube expander and production line |
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