CN216262854U

CN216262854U - U-shaped pipe bending device of heat exchanger

Info

Publication number: CN216262854U
Application number: CN202122962814.1U
Authority: CN
Inventors: 王永一; 杜顺洪
Original assignee: Sichuan Tongyi Thermal Equipment Co ltd
Current assignee: Sichuan Tongyi Thermal Equipment Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-12
Anticipated expiration: 2031-11-29

Abstract

The utility model provides a U-shaped pipe bending device of a heat exchanger, which comprises a machine body, a fixed wheel, a screw, a U-shaped support plate and an auxiliary guide block, wherein the fixed wheel is of a round table structure, a plurality of groups of parallel first limiting grooves are formed in the circumferential direction of the fixed wheel to be clamped into a pipe body, the notch of each first limiting groove is gradually enlarged along the axial direction of the fixed wheel, and the screw sequentially penetrates through the fixed wheel and the machine body; the auxiliary guide block is in threaded connection with an adjusting rod, the two sides of the U-shaped support plate are provided with strip-shaped adjusting grooves, the two ends of the adjusting rod penetrate through the strip-shaped adjusting grooves respectively and are fixed through nuts, the two front ends of the U-shaped support plate are fixedly connected with screw threads, the fixing wheel is located between the U-shaped support plates, and the screw is connected with a power device to drive the fixing wheel and the U-shaped support plates to rotate synchronously. The bending device can bend and process pipe bodies with different pipe diameters and angles through the multi-type first limiting grooves of the fixed wheels without replacing separate tools, and is convenient to operate, lower in cost and wider in application range.

Description

U-shaped pipe bending device of heat exchanger

Technical Field

The utility model relates to the technical field of heat exchangers, in particular to a U-shaped pipe bending device of a heat exchanger.

Background

The heat exchanger is an energy-saving equipment for transferring heat between two or more kinds of fluid with different temperatures, and is used for transferring heat from the fluid with higher temperature to the fluid with lower temperature, so that the temperature of the fluid reaches the corresponding index to meet the requirements of process conditions or be used for heating.

The connecting pipe of the heat exchanger needs to be bent for multiple times to form a plurality of U-shaped reciprocating structures, so that space is saved, the pipe diameters of pipes of different types of the heat exchanger are different, the application range of the existing bending device is single, the same bending tool can only bend one type of bent pipe and cannot bend various types of bent pipes with different radii, therefore, in production, different bending tools need to be matched for replacement and use aiming at the different types of bent pipes, each bending tool needs to be specially manufactured according to the size of the steel pipe needing to be bent, the production cost is greatly increased, inconvenience is brought to production, and the bending work efficiency of various types of steel pipes is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a U-shaped pipe bending device of a heat exchanger, which can meet the requirements of steel pipes with various bending pipe diameters, saves the operation time, reduces the production cost and has wider application range.

The embodiment of the utility model is realized by the following technical scheme: a U-shaped pipe bending device of a heat exchanger comprises a machine body, a fixed wheel, a screw, a U-shaped support plate and an auxiliary guide block, wherein the fixed wheel is of a round platform structure, a plurality of groups of parallel first limiting grooves are formed in the circumferential direction of the fixed wheel to be clamped into a pipe body, the notch of each first limiting groove is gradually enlarged along the axial direction of the fixed wheel, and the screw sequentially penetrates through the fixed wheel and the machine body; the auxiliary guide block is in threaded connection with an adjusting rod, strip-shaped adjusting grooves are formed in two sides of the U-shaped support plate, two ends of the adjusting rod penetrate through the strip-shaped adjusting grooves respectively and are fixed through nuts, two front ends of the U-shaped support plate are fixedly connected with the screw in a threaded mode, the fixing wheel is located between the U-shaped support plates, and the screw is connected with a power device to drive the fixing wheel and the U-shaped support plates to rotate synchronously.

Further, power device includes the box, the screw rod lower extreme runs through the box, be equipped with driving motor in the box, driving motor is connected with the driving gear, the screw rod cup joint be fixed with driving gear engaged with driven gear.

The auxiliary pipe feeding assembly comprises a strip-shaped fixed block, a first slide rail, a second slide rail, a mounting block, a first air cylinder and a second air cylinder; a plurality of groups of second limiting grooves corresponding to the first limiting grooves are formed in the strip-shaped fixing block, and the strip-shaped fixing block is tangent to the fixing wheel; the bar fixed block with first slide rail is detachable connection, first slide rail with the installation piece slides and links to each other, first cylinder is fixed in installation piece one end, and its flexible end with first slide rail is fixed mutually, the installation piece with the second slide rail slides and links to each other, just the second cylinder with the installation piece rear end is fixed, promotes bar fixed block antedisplacement or retreat.

Furthermore, the first slide rail is vertical perpendicular to the second slide rail.

Further, first slide rail is dovetail groove structure, the bar fixed block install mounting screw in order with first slide rail links to each other.

Furthermore, a lifting column is arranged on the machine body, a groove opening is formed in the end face of the lifting column to support the pipe body, and the lifting column is arranged at the tail end of the auxiliary pipe feeding assembly.

Furthermore, one end of the auxiliary guide block is provided with a semicircular groove, and the auxiliary guide block is a linear strip block.

The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects: compared with the prior art, the first limiting grooves of different types on the fixed wheel are matched with the auxiliary guide blocks, so that the pipe bodies with different pipe diameters can be clamped and bent, a tool does not need to be replaced, the structure is simple, the processing cost is reduced, the operation is convenient, and the application range is wide.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic front structural view of a U-shaped pipe bending device of a heat exchanger according to embodiment 1 of the present invention;

FIG. 2 is a top view of the U-shaped pipe bending device of the present invention;

fig. 3 is a schematic structural view of an auxiliary inlet pipe assembly according to the present invention.

Icon: 1-machine body, 2-fixed wheel, 21-first limit groove, 3-U-shaped support plate, 31-strip-shaped adjusting groove, 4-adjusting rod, 5-auxiliary guide block, 6-screw rod, 7-power device, 71-driving motor, 72-driving gear, 73-driven gear, 74-box body, 8-auxiliary pipe feeding assembly, 81-first air cylinder, 82-mounting block, 83-first slide rail, 831-mounting screw, 84-strip-shaped fixing block, 841-second limit groove, 85-second slide rail, 86-second air cylinder and 9-lifting column.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Example 1

To further explain below with reference to specific embodiments, referring to fig. 1 to 3, embodiment 1 is a U-shaped tube bending device for a heat exchanger, which includes a machine body 1, and further includes a fixed pulley 2, a screw 6, a U-shaped support plate 3, and an auxiliary guide block 5, where the fixed pulley 2 is a circular truncated cone structure, and the fixed pulley 2 is circumferentially provided with a plurality of sets of parallel first limiting grooves 21 to be clamped into a tube body, and a notch of each first limiting groove 21 is gradually enlarged along an axial direction of the fixed pulley 2, and the screw 6 sequentially passes through the fixed pulley 2 and the machine body 1; the auxiliary guide block 5 is in threaded connection with an adjusting rod 4, two sides of the U-shaped support plate 3 are respectively provided with a strip-shaped adjusting groove 31, two ends of the adjusting rod 4 respectively penetrate through the strip-shaped adjusting grooves 31 to be fixed through nuts, two front ends of the U-shaped support plate 3 are in threaded connection and fixed with a screw 6, the fixed wheel 2 is positioned between the U-shaped support plates 3, the screw 6 is connected with a power device 7 to drive the fixed wheel 2 and the U-shaped support plate 3 to synchronously rotate, specifically, when the bending device is used, a proper first limiting groove 21 on a fixed table is selected to be clamped in according to the pipe diameter of a pipe body to be bent, the auxiliary guide block 5 is enabled to move up and down along the adjusting rod 4 to be adjusted to a horizontal plane which is equal to the corresponding first limiting groove 21, the adjusting rod 4 moves forwards along the strip-shaped adjusting grooves 31 until the front end of the pipe body is propped to fix the pipe body, the power device 7 drives the screw 6 to rotate, so that the fixed wheel 2 and the U-shaped support plate 3 synchronously rotate, the pipe body rotates 90 degrees along the shape of first spacing groove 21 and then forms the U-shaped to the realization is bent the U type of heat exchanger's copper pipe and is operated, and this bending device can also satisfy the copper pipe of different pipe diameters and bend, and the suitability is good and with low costs, convenient operation.

Power device 7 in this embodiment includes

box

74, and 6 lower extremes of screw rod run through box 74, is equipped with driving motor 71 in the box 74, and driving motor 71 is connected with driving gear 72, and screw rod 6 cup joints and is fixed with driven gear 73 with driving gear 72 engaged with, and is specific, and driving motor 71 passes through driving gear 72 and gives driven gear 73 with power transmission to driven gear 73 drives screw rod 6 and rotates, and driving gear 72 and driven gear 73 all adopt conical gear.

The embodiment further comprises an auxiliary pipe feeding assembly 8, wherein the auxiliary pipe feeding assembly 8 comprises a strip-shaped fixed block 84, a first slide rail 83, a second slide rail 85, a mounting block 82, a first air cylinder 81 and a second air cylinder 86; a plurality of groups of second limiting grooves 841 corresponding to the first limiting grooves 21 are formed in the strip-shaped fixing block 84, and the strip-shaped fixing block 84 is tangent to the fixed wheel 2; the strip-shaped fixing block 84 is detachably connected with the first slide rail 83, the first slide rail 83 is slidably connected with the mounting block 82, the first cylinder 81 is fixed at one end of the mounting block 82, the telescopic end of the mounting block is fixed with the first slide rail 83, the mounting block 82 is connected with the second slide rail 85 in a sliding way, and the second cylinder 86 is fixed to the rear end of the mounting block 82 to push the bar-shaped fixing block 84 forward or backward, specifically, before the pipe body is bent when the fixed wheel 2 rotates, the second cylinder 86 pushes the mounting block 82 to move towards the fixed wheel 2 side along the second slide rail 85 until the second limiting groove 841 on the strip-shaped fixed block 84 contacts the pipe body, when the fixed wheel 2 rotates, the first air cylinder 81 extends out synchronously to drive the strip-shaped fixing block 84 to move along with the bending of the pipe body, the pipe body and the strip-shaped fixing block 84 complete feeding operation, the straight-line section structure of a U-shaped pipe finished product is also ensured, and the strip-shaped fixing block 84 can be detached and replaced according to specific use.

The first slide rail 83 and the second slide rail 85 in this embodiment are vertical and perpendicular, and specifically, the structure of the two slide rails realizes that the strip-shaped fixing block 84 can reach any position on the plane, so that the limit is wider.

First slide rail 83 in this embodiment is the forked tail groove shaped structure, and bar fixed block 84 installs mounting screw 831 in order to link to each other with first slide rail 83, and is concrete, and this structure makes first slide rail 83 comparatively firm and smooth-going with being connected of installation piece 82, and bar fixed block 84 dismouting change is also comparatively convenient.

Be equipped with lift post 9 on organism 1 in this embodiment, 9 terminal surfaces of lift post are opened there is notch in order to support the body, and lift post 9 locates supplementary advance tub 8 tail ends of subassembly, and is concrete, lift post 9 highly chooses for use the second spacing groove 841 decision on first spacing groove 21 on the tight pulley 2 and the bar fixed block 84 according to the body, lift post 9 highly all the time with first spacing groove 21 and the second spacing groove 841 of body position on same horizontal plane, three point contact can be stabilized and the angle accuracy after improving the body and bending, prevent deviating excessively.

In this embodiment, one end of the auxiliary guide block 5 is provided with a semicircular groove, and the auxiliary guide block 5 is a linear bar, specifically, the semicircular groove of the auxiliary guide block 5 can be in closer contact with a circular tube, so that the friction force is improved, the possibility of relative rotation is reduced, the linear length of the auxiliary guide block 5 is 15cm-20cm, and the linear structure of the front end of the U-shaped tube formed by the tube body is ensured.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a heat exchanger's U type pipe bending device, includes organism (1), its characterized in that: the pipe body fixing device is characterized by further comprising a fixed wheel (2), a screw (6), a U-shaped support plate (3) and an auxiliary guide block (5), wherein the fixed wheel (2) is of a circular truncated cone structure, a plurality of groups of parallel first limiting grooves (21) are formed in the circumferential direction of the fixed wheel (2) to be clamped into a pipe body, the notches of the first limiting grooves (21) are gradually increased along the axial direction of the fixed wheel (2), and the screw (6) sequentially penetrates through the fixed wheel (2) and the machine body (1);

the auxiliary guide block (5) is in threaded connection with an adjusting rod (4), strip adjusting grooves (31) are formed in two sides of the U-shaped support plate (3), two ends of the adjusting rod (4) penetrate through the strip adjusting grooves (31) respectively and are fixed through nuts, two front ends of the U-shaped support plate (3) are fixedly connected with the screw rod (6) through threads, the fixed wheel (2) is located between the U-shaped support plates (3), and the screw rod (6) is connected with a power device (7) to drive the fixed wheel (2) and the U-shaped support plates (3) to rotate synchronously.

2. The U-shaped pipe bending apparatus for a heat exchanger according to claim 1, wherein: the power device (7) comprises a box body (74), the lower end of the screw rod (6) penetrates through the box body (74), a driving motor (71) is arranged in the box body (74), the driving motor (71) is connected with a driving gear (72), and the screw rod (6) is fixedly connected with a driven gear (73) meshed with the driving gear (72) in a sleeved mode.

3. The U-shaped pipe bending apparatus for a heat exchanger according to claim 1, wherein: the auxiliary pipe feeding device is characterized by further comprising an auxiliary pipe feeding assembly (8), wherein the auxiliary pipe feeding assembly (8) comprises a strip-shaped fixing block (84), a first sliding rail (83), a second sliding rail (85), an installation block (82), a first air cylinder (81) and a second air cylinder (86);

a plurality of groups of second limiting grooves (841) corresponding to the first limiting grooves (21) are formed in the strip-shaped fixing block (84), and the strip-shaped fixing block (84) is tangent to the fixed wheel (2);

bar fixed block (84) with first slide rail (83) are detachable connection, first slide rail (83) with installation piece (82) slide and link to each other, first cylinder (81) are fixed in installation piece (82) one end, and its flexible end with first slide rail (83) are fixed mutually, installation piece (82) with second slide rail (85) slide and link to each other, just second cylinder (86) with installation piece (82) rear end is fixed, promotes bar fixed block (84) antedisplacement or retreat.

4. The U-shaped pipe bending apparatus for a heat exchanger according to claim 3, wherein: the first sliding rail (83) is vertical to the second sliding rail (85).

5. The U-shaped pipe bending apparatus for a heat exchanger according to claim 3, wherein: the first sliding rail (83) is of a dovetail groove-shaped structure, and a mounting screw (831) is mounted on the strip-shaped fixing block (84) to be connected with the first sliding rail (83).

6. The U-shaped pipe bending apparatus for a heat exchanger according to claim 3, wherein: the machine body (1) is provided with a lifting column (9), the end face of the lifting column (9) is provided with a groove opening to support the pipe body, and the lifting column (9) is arranged at the tail end of the auxiliary pipe feeding assembly (8).

7. The U-shaped pipe bending apparatus for a heat exchanger according to claim 1, wherein: one end of the auxiliary guide block (5) is provided with a semicircular groove, and the auxiliary guide block (5) is a linear strip block.