A heat exchanger baffle tube hole burr removal device

Abstract

The utility model discloses a device for removing burrs from the tube holes of a heat exchanger baffle. The device comprises a frame, an electric drill mounting base is fixedly connected to the surface of the frame, fixing screws are arranged on the surface of the electric drill mounting base, a low-speed electric drill is mounted on the surface of the electric drill mounting base via fixing screws, a handle is fixedly connected to the front end of the frame, an electric drill switch is arranged at one end of the handle, legs are arranged on the surface of the frame, and a chamfering knife is arranged at the output end of the low-speed electric drill. The staff only needs to hold the handle in front to easily chamfer each tube hole on the baffle through the device, so as to achieve the purpose of removing burrs and slag on both sides of the tube hole. In addition, by using the device, the occupation time of the drilling machine can be reduced, the manufacturing cost is greatly reduced, and the production efficiency is also improved.

Description

Technical Field

[0001] The utility model generally relates to the field of mechanical processing, and in particular to a device for removing burrs from baffle tube holes of a heat exchanger. Background Art

[0002] The baffle is a component installed inside the heat exchanger shell. Its function is to lengthen the flow of hot fluid inside the shell, thereby increasing the heat exchange effect, and at the same time it supports and positions the heat exchange tubes.

[0003] The baffles are cut by CNC laser cutting machines, and the tube holes are cut by laser perforation. There are cutting burrs and slag on both sides. In order to avoid scratches on the outer surface of the heat exchange tube during the process of inserting the heat exchange tube, the burrs on both sides of the baffle tube holes must be removed.

[0004] Traditionally, burr removal is done by chamfering with a radial drilling machine, but the processing speed of the drilling machine is slow. In addition, there are a large number of pipe holes on the baffle, which causes the drilling machine to be occupied for a long time, seriously affecting the drilling operation of other parts, resulting in high production costs. In addition, the radial drilling machine also has requirements for the size of the baffle when processing pipe hole chamfers. The chamfering of large-diameter baffles cannot be completed in one go, and the baffle needs to be moved to a fixed position multiple times, resulting in low processing efficiency.

[0005] In order to solve the above technical problems, it is urgent to design a burr removal device for the baffle tube holes of a heat exchanger to save costs and improve efficiency for enterprises. Utility Model Content

[0006] In view of this, in order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model provides a device for removing burrs from baffle tube holes of a heat exchanger.

[0007] The utility model discloses a burr removal device for baffle tube holes of a heat exchanger, the device comprises a frame, an electric drill mounting base is fixedly connected to the surface of the frame, fixing screws are arranged on the surface of the electric drill mounting base, a low-speed electric drill is mounted on the surface of the electric drill mounting base through the fixing screws, a handle is fixedly connected to the front end of the frame, an electric drill switch is arranged at one end of the handle, legs are arranged on the surface of the frame, and a chamfering cutter is arranged at the output end of the low-speed electric drill.

[0008] The utility model discloses a device for removing burrs from tube holes of baffles of a heat exchanger. A balancing block is fixedly connected to one end of the frame away from the handle.

[0009] The utility model discloses a burr removal device for baffle tube holes of a heat exchanger, wherein a crossbeam is fixedly connected to the surface of the frame, a stud is threadedly connected to the surface of the crossbeam, the stud passes through the crossbeam and is fixedly connected to the support leg, and an adjusting nut is threadedly connected to the surface of the stud.

[0010] The utility model discloses a device for removing burrs from tube holes of baffles of a heat exchanger. One end of the support leg away from the frame is fixedly connected with a roller.

[0011] The utility model discloses a device for removing burrs from baffle tube holes of a heat exchanger. The frame and the legs are symmetrically distributed as a whole, and the electric drill mounting base is located in the middle of the frame.

[0012] The utility model discloses a device for removing burrs from tube holes of baffles of a heat exchanger. The chamfering knife is of detachable design, and a plurality of balancing blocks are provided and fixed on the surface of the frame through the fixing screws.

[0013] The utility model discloses a heat exchanger baffle tube hole burr removal device, which is convenient for a worker to operate by holding a handle in front, and then chamfering each tube hole on the baffle to achieve the purpose of removing burrs and slag on both sides of the tube hole. In addition, by using the device, the occupancy time of the drilling machine can be reduced, the manufacturing cost is greatly reduced, and the production efficiency is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present invention, the implementation methods of the present invention will be further illustrated and described based on the following drawings. These drawings are only used to more conveniently and specifically describe the implementation methods of the present invention rather than to limit the present invention.

[0015] Figure 1 It is a structural schematic diagram of a heat exchanger baffle tube hole burr removal device according to the utility model;

[0016] Figure 2 This is a structural schematic diagram of a frame of a heat exchanger baffle tube hole burr removal device according to the utility model;

[0017] Figure 3 A schematic diagram of the structure of an electric drill mounting base of a heat exchanger baffle tube hole burr removal device according to the utility model; and

[0018] Figure 4 It is a right side view of a frame of a heat exchanger baffle tube hole burr removal device described in the utility model. DETAILED DESCRIPTION

[0019] like Figure 1 and Figure 4As shown, the utility model provides a burr removal device for the baffle tube holes of a heat exchanger, the device includes a frame 3, an electric drill mounting base 5 is fixedly connected to the surface of the frame 3, a fixing screw 4 is arranged on the surface of the electric drill mounting base 5, a low-speed electric drill 10 is installed on the surface of the electric drill mounting base 5 through the fixing screw 4, a handle 2 is fixedly connected to the front end of the frame 3, an electric drill switch 1 is arranged at one end of the handle 2, a support leg 12 is arranged on the surface of the frame 3, and a chamfering cutter 9 is arranged at the output end of the low-speed electric drill 10.

[0020] In a preferred embodiment, the low-speed electric drill 10 is mounted on the surface of the frame 3 by fixing screws 4, and then the baffle is fixed on the ground below the low-speed electric drill. The staff presses the electric drill switch 1 by holding the handle 2 to start the low-speed electric drill 10, and then presses the low-speed electric drill 10 downward with the position where the legs 12 touch the ground as a fulcrum to perform chamfering. This design is convenient for staff to operate and has lower costs. In actual operation, the staff only needs to hold the handle 2 in front to easily chamfer each pipe hole on the baffle through the device, so as to achieve the purpose of removing burrs and slag on both sides of the pipe hole. In addition, the use of this device can reduce the occupancy time of the drilling machine, greatly reduce the manufacturing cost, and also improve production efficiency.

[0021] In another preferred embodiment, Figure 1 As shown, a balance block 8 is fixedly connected to one end of the frame 3 away from the handle 2, and the balance block 8 arranged on the rear side of the frame 3 can greatly reduce the force used by the staff when lifting the handle 2 based on the lever principle, thereby reducing labor intensity.

[0022] In another preferred embodiment, Figure 2 As shown, the surface of the frame 3 is fixedly connected with a crossbeam 13, the surface of the crossbeam 13 is threadedly connected with a stud 6, the stud 6 passes through the crossbeam 13 and is fixedly connected with the support leg 12, and the surface of the stud 6 is threadedly connected with an adjustment nut 7. By adjusting the position of the adjustment nut 7 on the stud 6, the stud 6 is driven to move up and down in the crossbeam 13 to achieve the purpose of adjusting the height of the support leg 12, so that the chamfering cutter 9 is perpendicular to the processing plane when contacting the baffle, so that it is more convenient for the staff to remove the burrs on the surface of the pipe hole.

[0023] In another preferred embodiment, Figure 2 As shown, the end of the leg 12 away from the frame 3 is fixedly connected with a roller 11. Through the roller 11, the staff can push and pull the handle 2, and the frame 3 can move on the surface of the baffle with the help of the roller 11, thereby chamfering each tube hole on the baffle, further improving the processing efficiency and making the staff's operation more labor-saving.

[0024] In another preferred embodiment, Figure 1 As shown, the frame 3 and the legs 12 are symmetrically distributed as a whole, and the electric drill mounting base 5 is located in the middle of the frame 3. The symmetrically designed frame 3 can make the low-speed electric drill 10 be placed more stably and have better stability when moving.

[0025] In another preferred embodiment, Figure 2 As shown, the chamfering cutter 9 is of detachable design, and the balancing block 8 can be provided with multiple pieces, and fixed on the surface of the frame 3 by the fixing screws 4. The common baffle tube hole diameter is φ13mm to φ25mm, and the thickness is 6mm to 30mm. By replacing electric drills of different powers and matching chamfering cutters 9 of different angles and diameters, burrs and slags generated by laser cutting of various baffles can be removed. At the same time, by adding or subtracting the number of balancing blocks 8, it is possible to better cooperate with the low-speed electric drill 10 to achieve balanced and stable operation.

[0026] It should be noted that in the context of the present invention, the "left end" and "right end" of each connecting rod refer to relative positions, which are defined only for the convenience of describing the present invention and should not be considered as limitations of the present invention. When the relative positions change, the original "left end" can be considered as the "right end", and the original "right end" can be considered as the "left end".

[0027] A large number of specific examples are provided in the embodiments provided herein, and it should be understood that these examples are only for the purpose of describing the embodiments of the present invention in detail and are not intended to limit the present invention. The embodiments of the present invention can be practiced without these specific examples. In some embodiments, structures and / or technologies known to those skilled in the art are not shown in detail so as not to obscure the understanding of the present invention.

[0028] Although preferred embodiments of the present invention have been shown and described herein, it is readily understood by those skilled in the art that these embodiments are provided by way of example only. Those skilled in the art will now think of various changes, modifications and substitutions without departing from the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein are optionally used to implement the present invention. It is intended to define the scope of the present invention by the claims, and thus cover structures and their equivalents within the scope of these claims.

Claims

1. A heat exchanger baffle tube hole burr removal device, characterized in that: The device comprises a frame (3), an electric drill mounting base (5) is fixedly connected to the surface of the frame (3), a fixing screw (4) is arranged on the surface of the electric drill mounting base (5), a low-speed electric drill (10) is mounted on the surface of the electric drill mounting base (5) via the fixing screw (4), a handle (2) is fixedly connected to the front end of the frame (3), an electric drill switch (1) is arranged at one end of the handle (2), a support leg (12) is arranged on the surface of the frame (3), and a chamfering cutter (9) is arranged at the output end of the low-speed electric drill (10).

2. The heat exchanger baffle tube hole burr removal device according to claim 1, characterized in that: One end of the frame (3) away from the handle (2) is fixedly connected to a balance block (8).

3. The heat exchanger baffle tube hole burr removal device according to claim 1, characterized in that: A crossbeam (13) is fixedly connected to the surface of the frame (3), a stud (6) is threadedly connected to the surface of the crossbeam (13), the stud (6) passes through the crossbeam (13) and is fixedly connected to the support leg (12), and an adjusting nut (7) is threadedly connected to the surface of the stud (6).

4. The heat exchanger baffle tube hole burr removal device according to claim 1, characterized in that: One end of the support leg (12) away from the frame body (3) is fixedly connected to a roller (11).

5. The heat exchanger baffle tube hole burr removal device according to claim 1, characterized in that: The frame (3) and the legs (12) are symmetrically distributed as a whole, and the electric drill mounting base (5) is located in the middle of the frame (3).

6. The heat exchanger baffle tube hole burr removal device according to claim 2, characterized in that: The chamfering cutter (9) is of detachable design, and a plurality of balancing blocks (8) are provided and fixed to the surface of the frame (3) via the fixing screws (4).

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