CN219924204U - Fin tube bending device for refrigerator heat exchanger - Google Patents
Fin tube bending device for refrigerator heat exchanger Download PDFInfo
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- CN219924204U CN219924204U CN202320679684.7U CN202320679684U CN219924204U CN 219924204 U CN219924204 U CN 219924204U CN 202320679684 U CN202320679684 U CN 202320679684U CN 219924204 U CN219924204 U CN 219924204U
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- bending
- heat exchanger
- wheel
- refrigerator heat
- lining sheet
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- 238000005452 bending Methods 0.000 title claims abstract description 97
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Bending Of Plates, Rods, And Pipes (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a finned tube bending device for a refrigerator heat exchanger, which comprises a power cylinder and a traction motor, and is characterized in that the power cylinder is connected with a rotating platform through a power transmission pair, a bending tube wheel is arranged on the rotating platform, and an inner lining sheet is arranged in cooperation with the bending tube wheel; the lining sheet is formed by connecting a plurality of single pieces in series one by one, is positioned in the movable chute and driven by the traction motor, and has two stations of a near point and a far point with the pipe bending wheel. The heat exchanger forming mechanism which is quick and efficient and does not need to disassemble and assemble the die in the process is obtained through a group of variant lining piece designs with the shapes determined by the station characteristics; the detachable design of the forming die meets the requirement of the same equipment on processing different specifications of bending pipelines; the bending size is accurate and the operation is convenient.
Description
Technical Field
The utility model relates to a fin tube processing equipment technology, in particular to a fin tube bending device for a refrigerator heat exchanger.
Background
There are various methods and devices for bending the finned tube of the heat exchanger, such as a bent tube die for obliquely seeding fins disclosed in patent publication No. CN104384263A, wherein a fixed pin shaft is vertically and fixedly connected between a top plate and a platform; the supporting roller is cylindrical and vertically sleeved on a fixed pin shaft between the top plate and the platform, and can rotate around the fixed pin shaft; the auxiliary roller is cylindrical and is vertically arranged between the top plate and the platform; the supporting roller and the auxiliary roller are oppositely arranged in parallel, and annular semicircular grooves are respectively arranged at the same height position; the metal tube to be bent can pass through the annular semicircular grooves opposite to the supporting rollers and the auxiliary rollers in a clearance way; the movable bolt is vertically inserted into the top plate, the auxiliary roller and the platform hole in a clearance way, and the auxiliary roller can rotate around the movable bolt; the end of the bending rod is connected to the fixed pin shaft between the top plate and the supporting roller and can rotate around the fixed pin shaft; the lower end face of the bent rod body is provided with a limiting plate. As another example, patent publication number is CN111283031A, a fin tube bender is disclosed, comprising a machine base, a feeding device and a bending device; the feeding device can fix, push or rotate the pipeline; the bending device is provided with an R-changing mechanism, a deflection mechanism and a rotating piece. The distance between the screw rod and the axis of the base is adjusted by arranging the R-changing mechanism, and any bending radius is adjusted; the self-adaptive force of the pipe is matched with the internal structure of the deflection mechanism during pipe bending to deflect reversely to the rotation direction of the rotating piece, so that the dent of the pipe surface generated during pipe bending is reduced.
The disclosed techniques are designed for products with fins after bending first, and some products can only be bent to a fixed size, and when the diameter of the bent product is changed, a large number of accessories are required to be replaced, even a new device is required to be completed, and the problem of bending the products with fins and tubes integrally formed is not solved well, mainly the problem of quick die withdrawal.
Disclosure of Invention
The utility model aims to solve the problems and provide a finned tube bending device for a refrigerator heat exchanger, which has the characteristics of multiple functions, accurate bending size, simplicity in operation, high efficiency, no need of replacing and middle die dismounting for the same product, high automation or semi-automation degree and the like.
The technical problems of the utility model are mainly solved by the following technical proposal: the finned tube bending device for the refrigerator heat exchanger comprises a power cylinder and a traction motor and is characterized in that the power cylinder is connected with a rotating platform through a power transmission pair, a bending tube wheel is arranged on the rotating platform, and an inner lining sheet is arranged in cooperation with the bending tube wheel; the lining sheet is formed by connecting a plurality of single pieces in series one by one, is positioned in the movable chute and driven by the traction motor, and has two stations of a near point and a far point with the pipe bending wheel.
In the foregoing fin tube bending device for a heat exchanger of a refrigerator, preferably, a detachable connection structure is provided between the bending wheel and the rotating platform.
In the foregoing fin tube bending device for a heat exchanger of a refrigerator, preferably, a detachable connection structure is formed between the inner lining sheet and the movable chute.
In the foregoing fin tube bending device for a heat exchanger of a refrigerator, preferably, the fin tube bending device has an equal number of bent tube positioning grooves along the length direction of the bent tube wheel and the inner liner.
In the foregoing fin tube bending device for a heat exchanger of a refrigerator, preferably, a plurality of segments of the inner lining sheet are integrally formed into a half cylinder, and the inner lining sheet forms a half cylinder structure from a position near a bending wheel.
In the foregoing fin tube bending device for a heat exchanger of a refrigerator, preferably, the bending wheel is arranged perpendicular to the rotating platform through a bracket, and a bending baffle is connected to one side of the bracket.
In the foregoing fin tube bending device for a heat exchanger of a refrigerator, preferably, the power transmission pair includes a rack connected to the power cylinder, a gear meshed with the rack, and the gear is fixed to the rotating platform.
In the foregoing fin tube bending device for a heat exchanger of a refrigerator, preferably, the moving chute includes semicircular rails at both ends and a linear rail connected to the semicircular rails at both ends, and a plurality of individual pieces of the lining sheet are flexibly connected to each other and connected to the traction motor through a chain and a traction wheel.
In the fin tube bending device for the refrigerator heat exchanger, preferably, the number of single piece of the inner lining piece is more than or equal to 3.
The refrigerator heat exchanger is compact in structure and small in bent pipe radius, and is designed in a bending device. In order to ensure that radial deformation of the finned tube is minimized in the bending deformation process, the finned tube needs to be wrapped in a preset inner (lining)/outer (bending wheel) accommodating groove in the bending process, and the bending wheel and the lining are matched to form an accommodating groove which is consistent with the pipe diameter of a part required to be bent of the finned tube.
According to the technical scheme, according to the principle that the position relation among objects is only considered according to topology and the shape and the size of the objects are not considered, and the problem that when the radius of an elbow is smaller than that of an inner lining mould, after 180 bending deformation, a heat exchanger cannot be taken out of the inner lining mould is solved, the inner lining mould is designed into a multi-piece combined structure formed by connecting a plurality of single pieces in series one by one, after 180-degree bending forming is completed, all inner lining pieces of the inner lining mould are connected through flexibility, and then are driven by a traction motor to be in an unfolding state at a storage position in a movable chute, so that the heat exchanger is smoothly taken out of a containing groove of the inner lining mould and an elbow wheel.
The device realizes the clamping, bending, loosening, resetting and positive and negative rotation of the lining mould relative to the pipe bending wheel through the power cylinder and the traction motor, and the power cylinder controls the running data of the rotating platform through the power transmission pair (rack-gear), thereby ensuring the accuracy of parameters such as bending points, bending angles and the like. The elbow wheel and the length direction of the lining sheet are provided with equivalent and equidistant elbow positioning grooves, so that the single-tube and multi-tube structure heat exchanger can be processed.
The lining sheets in the device are integrated into a semi-cylindrical structure, and are matched with the pipe bending wheel to form a near-point station and a far-point station: the semi-cylindrical structure formed by the position of the lining sheet close to the pipe bending wheel can bend the fin pipes, and the fin pipes are arranged in a straight line when far away from the pipe bending wheel, so that a heat exchanger unloading space is provided.
Further, the detachable connecting structures are arranged between the pipe bending wheel and the rotating platform and between the lining sheet and the movable sliding groove, and heat exchanger products with different specifications and models of pipe diameters can be processed respectively.
The number of single pieces of the lining sheets of the device is more than or equal to 3, a smaller displacement space can be obtained, and the fins are not affected in the forming process.
Compared with the prior art, the utility model has the beneficial effects that: the heat exchanger forming mechanism which is quick and efficient and does not need to disassemble and assemble the die in the process is obtained through a group of variant lining piece designs with the shapes determined by the station characteristics; the detachable design of the forming die meets the requirement of the same equipment on processing different specifications of bending pipelines; the bending size is accurate and the operation is convenient.
Drawings
FIG. 1 is a schematic view of a molded body part structure according to the present utility model.
Fig. 2 is a schematic view of an initial state structure of the present utility model.
FIG. 3 is a schematic view of the fitting part of the lining sheet and the movable chute of the present utility model.
Fig. 4 is a schematic view of a fin single tube structure as a processed product of the present utility model.
FIG. 5 is a schematic view of a fin tube structure as a processed product of the present utility model.
Fig. 6 is an electrical control diagram of the present utility model.
In the figure: 1. the pipe bending baffle plate is characterized by comprising a pipe bending baffle plate, a rotating platform, a gear, a rack, a traction motor, a moving chute, a traction wheel, an inner lining sheet, a pipe bending wheel, a bracket and a finned pipe.
Detailed Description
The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.
Referring to fig. 1 and 2, a finned tube bender for a refrigerator heat exchanger according to the present embodiment comprises a power cylinder, a traction motor 5 and a controller.
The power cylinder is connected with the rotary platform 2 through a power transmission pair, the power transmission pair comprises a rack 4 connected with the power cylinder, a gear 3 meshed with the rack 4, and the gear 3 is fixed with the rotary platform 2.
The rotating platform 2 is provided with a pipe bending wheel 9, and an inner lining 8 is matched with the pipe bending wheel 9. Wherein the pipe bending wheel 9 is arranged perpendicular to the rotary platform 2 through a bracket 10, one side of the bracket 10 is connected with a pipe bending baffle plate 1, and the pipe bending baffle plate 1 is used as an initial positioning and pushing plate of the finned tube 11. The pipe bending wheel 9 and the rotating platform 2 are of a detachable connection structure.
The lining 8 is formed by connecting 4 single pieces in series one by one, the lining 8 is positioned in the moving chute 6 and driven by the traction motor 5, and the lining 8 and the pipe bending wheel 9 are provided with a near point station and a far point station. The 4 pieces of the inner liner sheet 8 are integrally formed in a semi-cylindrical shape, and the diameter of the semi-cylindrical shape corresponds to the diameter of the required bending portion of the fin tube 11. The liner sheet 8 forms a semi-cylindrical structure from the position close to the pipe bending wheel 8.
The movable chute 6 comprises semicircular tracks at two ends and linear tracks connected with the semicircular tracks at two ends, 4 piece parts of the lining sheet 8 are flexibly connected through connecting pieces such as steel ropes, and the two outermost lining sheets 8 are connected with the traction motor 5 through chains and traction wheels 7. The 4 pieces are aligned when the lining sheet 8 is at a distance from the pipe bending wheel 8. The connecting bodies between the lining sheet 8 and the movable sliding chute 6 are all detachable connecting structures, and can be replaced according to the finned tubes 11 with different specifications.
The length direction of the pipe bending wheel 9 and the inner lining sheet 8 is provided with the pipe bending positioning grooves with equal number and equal radius, and the embodiment is provided with 3 positioning grooves, so that the fin single pipe as shown in figure 4, the fin two pipes as shown in figure 5 and the fin three pipes can be processed.
The fin tube 11 bending work flow is controlled as shown in fig. 6:
and in the initial state, the finned tube 11 to be bent is leaned against the positions of the pipe bending wheel 9 and the pipe bending baffle plate 1, the clamping button is pressed, and the traction motor 5 is reversed to drive the four pipe lining sheets 8 to return to the circular arcs corresponding to the pipe bending wheel 9, so that the pipe bending lining mechanism is formed.
The bending button is pressed down, the power cylinder pushes the rack 4, the rack 4 is meshed with the gear 3, the gear 3 drives the rotating platform 2 to enable the pipe bending lining mechanism to rotate, and pipe bending action is completed.
After the pipe bending wheel 9 rotates in place, a 'relax' button is pressed, the traction motor 5 is started to drive the four pieces of lining sheets 8 to move towards the storage position of the movable chute 6, the gap between the lining sheets 8 and the pipe bending wheel 9 is increased, and the bent finned tube 11 is taken out. Subsequently, the reset button is pressed, the power cylinder is retracted, and the rotary platform 2 is returned to the initial state.
When the size of the bent pipe is replaced, the bent pipe wheel 9 and the fixed bolt of the bent pipe lining mechanism on the rotating platform 2 can be detached, and the bent pipe wheel and the bent pipe lining mechanism can be integrally taken down for replacement.
The above embodiments are illustrative of the present utility model, and not limiting, and any simple modified structure of the present utility model in the refrigerator finned tube evaporator technology is within the scope of the present utility model.
Claims (9)
1. The finned tube bending device for the refrigerator heat exchanger comprises a power cylinder and a traction motor (5) and is characterized in that the power cylinder is connected with a rotating platform (2) through a power transmission pair, a bending tube wheel (9) is arranged on the rotating platform, and an inner lining sheet (8) is arranged in cooperation with the bending tube wheel; the lining sheet is formed by connecting a plurality of single pieces in series one by one, is positioned in the movable chute (6) and driven by the traction motor, and has two stations of a near point and a far point with the pipe bending wheel.
2. The fin tube bending device for the refrigerator heat exchanger according to claim 1, wherein a detachable connection structure is arranged between the bending wheel (9) and the rotating platform (2).
3. The finned tube bending device for the refrigerator heat exchanger according to claim 1, wherein a detachable connecting structure is arranged between the lining sheet (8) and the movable sliding groove (6).
4. A finned tube bending device for a refrigerator heat exchanger according to claim 1, wherein there are an equal number of tube bending positioning grooves along the length of the tube bending wheel (9) and inner lining sheet (8).
5. The fin tube bending device for a refrigerator heat exchanger according to claim 1, wherein a plurality of pieces of the lining sheet (8) are integrated into a semi-cylinder, and the lining sheet forms a semi-cylinder structure from a position close to a bending wheel (9).
6. A finned tube bending device for a refrigerator heat exchanger according to claim 1, wherein the bending wheel (9) is arranged perpendicular to the rotating platform (2) through a bracket (10), and a bending baffle (1) is connected to one side of the bracket.
7. The fin tube bending apparatus for a refrigerator heat exchanger according to claim 1, wherein the power transmission pair comprises a rack (4) connected with the power cylinder, a gear (3) meshed with the rack, and the gear is fixed with the rotating platform (2).
8. The finned tube bending device for the refrigerator heat exchanger according to claim 1, wherein the movable sliding chute (6) comprises semicircular tracks at two ends and linear tracks connected with the semicircular tracks at two ends, a plurality of individual pieces of the lining sheet (8) are flexibly connected, and the movable sliding chute is connected with the traction motor (5) through a chain and a traction wheel (7).
9. The fin tube bending device for a refrigerator heat exchanger according to claim 1, wherein the number of single pieces of the lining sheet (8) is not less than 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320679684.7U CN219924204U (en) | 2023-03-30 | 2023-03-30 | Fin tube bending device for refrigerator heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320679684.7U CN219924204U (en) | 2023-03-30 | 2023-03-30 | Fin tube bending device for refrigerator heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219924204U true CN219924204U (en) | 2023-10-31 |
Family
ID=88499481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320679684.7U Active CN219924204U (en) | 2023-03-30 | 2023-03-30 | Fin tube bending device for refrigerator heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219924204U (en) |
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2023
- 2023-03-30 CN CN202320679684.7U patent/CN219924204U/en active Active
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