Tube penetrating machine for heat exchanger tube plate

Abstract

The utility model discloses a tube penetrating machine for a tube plate of a heat exchanger, which comprises a bottom frame and a cover frame covered on the bottom frame, a lower roller pair is rotatably mounted in the bottom frame, an upper roller pair is rotatably mounted in the cover frame, the upper roller pair and the lower roller pair are axially parallel, and the upper roller pair and the lower roller pair clamp a tube and convey the tube through rotation of at least one of the upper roller pair and the lower roller pair. The device can save manpower, and has the advantages of high efficiency, high safety and capability of greatly reducing manpower and labor intensity.

Description

Technical Field

[0001] The utility model relates to the field of tube threading machines, in particular to a tube threading machine for a heat exchanger tube sheet. Background Art

[0002] At present, the installation of heat exchange tubes on the tube sheet of industrial heat exchangers is carried out manually. Due to the long length of the metal tubes, it requires the cooperation of multiple people, and the tail pipe is assisted by wooden sticks. The installation efficiency is low and the labor intensity is high. Utility Model Content

[0003] The utility model provides a tube threading machine for a heat exchanger tube sheet, so as to solve the problem of low efficiency caused by the need for cooperation of multiple persons when installing heat exchange tubes on the heat exchanger tube sheet in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The tube threading machine for heat exchanger tube sheet comprises a bottom frame and a cover frame mounted on the bottom frame, wherein a lower roller pair is rotatably mounted in the bottom frame, and an upper roller pair is rotatably mounted in the cover frame at a position corresponding to the lower roller pair of the bottom frame, wherein the axes of the upper and lower roller pairs are parallel, and at least one of the upper and lower roller pairs is driven by a motor, and the upper and lower roller pairs clamp the tube and transmit the tube by rotating at least one of the upper and lower roller pairs.

[0006] Furthermore, the frame walls on both sides of the bottom frame and the cover frame located in the pipe transmission direction are respectively provided with guide openings.

[0007] Furthermore, a frame wall on one side of the cover frame is hinged to a corresponding side frame wall of the bottom frame via a flip hinge, and a frame wall on the other side of the cover frame is locked to a corresponding side frame wall of the bottom frame via a quick lock.

[0008] When the utility model is working, the cover frame is closed on the bottom frame and then locked up and down by means of a quick lock, the upper and lower rollers are driven to rotate by a motor, and the pipe is inserted from the guide opening of the frame wall on one side in the same direction of the cover frame and the bottom frame, and the pipe is sent to the guide opening on the other side under the side effect of the upper and lower rollers, thereby realizing the pipe holding and transmission, and the guide openings on both sides can stabilize the direction and posture during the pipe transmission process, thereby realizing accurate and efficient pipe threading.

[0009] Compared with the prior art, the utility model can save manpower, and only one person is needed to operate the equipment and another person is needed to assist. The utility model is used to thread the tube sheet, which has the advantages of high efficiency, high safety, and greatly reduced manpower and labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0012] like Figure 1 As shown, this embodiment discloses a tube threading machine for a heat exchanger tube sheet, comprising a bottom frame 1 and a cover frame 2 of a profile frame structure, wherein the left side frame wall of the cover frame 2 is hingedly connected to the left side frame wall of the bottom frame 1 through a flip hinge 3, so that the cover frame 2 can be rotatably covered on the bottom frame 1. A quick lock 4 is provided on the right side frame wall of the cover frame 2, and a lock seat of the quick lock is provided on the right side frame wall of the bottom frame 1, and when the cover frame 2 is covered on the bottom frame 1, the quick lock 4 is locked on the lock seat.

[0013] A lower rotating roller pair is rotatably installed in the bottom frame 1, and the lower rotating roller pair includes three groups of lower rotating rollers 5 whose axes are horizontal to the left and right. One end of the axis in the same direction of each lower rotating roller 5 is coaxially fixedly connected with a lower pulley 6. The three lower pulleys 6 are connected by a synchronous belt transmission, and one of the lower pulleys is driven by a first motor installed on the bottom frame 1. Therefore, the three lower rotating rollers 5 can be controlled to rotate synchronously by controlling the first motor.

[0014] An upper roller pair is rotatably installed in the cover frame 2, and the upper roller pair includes three groups of upper rollers 7 whose axes are horizontal to the left and right. When the cover frame 2 is covered on the bottom frame 1, the upper rollers 7 in the upper roller pair and the lower rollers 5 in the lower roller pair are in one-to-one correspondence and are opposite to each other up and down, and there is a gap between the upper rollers 7 and the lower rollers 5 that are opposite to each other up and down. An upper pulley is coaxially fixedly connected to one end of the axis in the same direction of each upper roller 7, and the three upper pulleys are connected through a synchronous belt transmission, and one of the upper pulleys is driven by a second motor 8 installed on the cover frame 2, so that the three upper rollers 7 can be controlled to rotate synchronously by controlling the second motor 8.

[0015] The front and rear side frame walls of the bottom frame 1 are respectively fixed with guide openings 9, which include a rectangular seat and three circular arc recesses on the top surface of the rectangular seat that are horizontally distributed left and right and open upward. The front and rear side frame walls of the cover frame 2 are respectively fixed with guide openings of the same structure, but the guide opening of the cover frame 2 opens downward. When the cover frame 2 is covered on the bottom frame 1, the circular arc recesses in the guide openings 9 of the frame walls of the cover frame 2 and the bottom frame 1 in the same direction correspond to each other and are connected to form a full circular opening.

[0016] During operation, the cover frame 2 is covered on the bottom frame 1, and the tube insertion hole of the heat exchanger tube sheet is aligned with the full circular opening formed by the docking of the guide opening of the rear frame wall. Then, the tube is inserted between the cover frame 2 and the bottom frame 1 through the full circular opening formed by the docking of the guide opening of the front frame wall. The rotating upper and lower roller pairs are used to move the tube backward to pass through the guide opening of the rear frame wall. After passing through, the tube is inserted into the tube insertion hole of the heat exchanger tube sheet, thereby realizing the holding and transmission of the tube.

[0017] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. The embodiments described in the present invention are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. Such combinations should also be regarded as the contents disclosed in the present disclosure as long as they do not violate the concept of the present invention. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0018] The present invention is not limited to the specific details in the above-mentioned embodiments. Within the technical concept of the present invention and without departing from the design concept of the present invention, various modifications and improvements made to the technical solution of the present invention by technical personnel in this field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A tube threading machine for a heat exchanger tube sheet, characterized in that: The utility model comprises a bottom frame and a cover frame which is mounted on the bottom frame, wherein a lower roller pair is rotatably mounted in the bottom frame, and an upper roller pair is rotatably mounted in the cover frame at a position corresponding to the lower roller pair of the bottom frame, the axes of the upper and lower roller pairs are parallel, at least one of the upper and lower roller pairs is driven by a motor, the upper and lower roller pairs clamp the pipe and at least one of the upper and lower roller pairs rotates to transmit the pipe.

2. The tube threading machine for heat exchanger tube sheet according to claim 1, characterized in that: The frame walls on both sides of the bottom frame and the cover frame, which are located in the pipe transmission direction, are respectively provided with guide openings.

3. The tube threading machine for heat exchanger tube sheet according to claim 1, characterized in that: One side frame wall of the cover frame is hinged to the corresponding side frame wall of the bottom frame through a flip hinge, and the other side frame wall of the cover frame is locked to the corresponding side frame wall of the bottom frame through a quick lock.

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