Push rod plate for rolling core rod of heat exchange tube

Abstract

The push rod plate for rolling the core rod of heat exchange pipe is characterized by that a first through hole is formed in the center of the base, an installation groove is formed on one side surface of the base outside the through hole, connecting arms are arranged on the upper and lower ends of one side of the limiting arm, a semicircular groove is arranged in the center of the other side surface of the limiting arm, the two limiting arms are connected with the left and right sides of the installation groove through the connecting arms and the rotatable shafts, and the second through hole is formed when the other side of the two limiting arms is closed. The push rod plate has the advantages of convenient installation, easy removal and maintenance, low cost and long service life.

Description

Technical Field

[0001] This utility model relates to a pusher plate for rolling mandrels in heat exchanger tubes. Background Technology

[0002] The original pusher plate was a square iron block through which the mother tube could pass. After the mother tube passed through, two protruding, outward-folding iron hoops closed to form a flared opening, which held the mother tube in place. Together with the pusher carriage, the mother tube was continuously pushed forward to achieve rolling of the mother tube at a pre-set processing rate. The constant impacts during the rolling process could easily damage the pusher plate. Utility Model Content

[0003] The purpose of this invention is to solve existing technical problems by proposing a pusher plate for rolling mandrels in heat exchange tubes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a pusher plate for rolling mandrels in heat exchange tubes, including a base and a limiting arm, a first through hole is opened in the center of the base, an installation groove is opened on one side of the base outside the through hole, a connecting arm is provided at both the upper and lower ends of one side of the limiting arm, a semi-circular groove is provided in the center of the other side of the limiting arm, the two limiting arms are connected to the left and right rotatable shafts of the installation groove through the connecting arm, and a second through hole is formed when the other side of the two limiting arms is closed.

[0005] Furthermore, the inner diameter of the second through hole is smaller than that of the first through hole.

[0006] Furthermore, one side of the upper connecting arm of the limiting arm is attached to the inner wall of the mounting groove, and one side of the lower connecting arm of the limiting arm is attached to the inner wall of the mounting groove. One rotating shaft passes through the upper connecting arm and is rotatably connected to the inner wall of the mounting groove, and another rotating shaft passes through the lower connecting arm and is rotatably connected to the inner wall of the mounting groove.

[0007] Furthermore, the mounting slot is square.

[0008] Furthermore, the base is disc-shaped.

[0009] Furthermore, the outer sides of the two limiting arms form the mother tube pressure surface.

[0010] Furthermore, the inner sides of the two limiting arms are in contact with the bottom surface of the mounting groove.

[0011] Furthermore, the pusher plate can be connected to a screw-driven push assembly.

[0012] The advantages of this utility model are: simple structure, convenient and quick installation, and reduced impact force, which improves service life. Attached Figure Description

[0013] Figure 1 This is a closed front view.

[0014] Figure 2 To open the main view.

[0015] Figure 3 This is the rear view.

[0016] Figure 4 This is a schematic diagram of the base structure. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Example 1 combined with appendix Figure 1-4 A pusher plate for rolling mandrels for heat exchange tubes includes a base 1 and a limiting arm 2. A first through hole 3 is opened in the center of the base 1. An installation groove 4 is opened on one side of the base 1 outside the through hole. Connecting arms 5 are provided at both the upper and lower ends of one side of the limiting arm 2. A semi-circular groove 6 is provided in the center of the other side of the limiting arm. The two limiting arms are connected to the left and right rotatable shafts of the installation groove through the connecting arms. When the other side of the two limiting arms is closed, a second through hole 7 is formed.

[0019] The pusher plate used for rolling mandrels in heat exchange tubes has a second through hole with a smaller inner diameter than the first through hole.

[0020] The pusher plate used for rolling the mandrel of heat exchanger tube has an upper connecting arm side that fits against the inner wall of the mounting groove, and a lower connecting arm side that fits against the inner wall of the mounting groove. One rotating shaft 8 passes through the upper connecting arm and is rotatably connected to the inner wall of the mounting groove, and another rotating shaft passes through the lower connecting arm and is rotatably connected to the inner wall of the mounting groove.

[0021] The pusher plate used for rolling mandrels in heat exchange tubes has a square mounting groove.

[0022] The pusher plate used for rolling mandrels into heat exchange tubes has a disc-shaped base.

[0023] The pusher plate used for rolling the mandrel in heat exchange tubes has two limiting arms forming the mother tube pressing surface on its outer side.

[0024] The pusher plate used for rolling mandrels in heat exchange tubes has two limit arms whose inner sides are in contact with the bottom surface of the mounting groove.

[0025] A pusher plate used for rolling mandrels into heat exchange tubes; the pusher plate can be connected to a screw-driven push assembly.

[0026] The pusher plate used for rolling mandrels in heat exchanger tubes has a simple structure, is easy and quick to install, and reduces impact force, thus increasing service life.

[0027] The pusher plate used for rolling mandrels in heat exchanger tubes has a limiting arm thickness that does not exceed the depth of the mounting groove.

[0028] The pusher plate used for rolling mandrels in heat exchange tubes has interlocking protrusions and grooves on the other side of the two limiting arms to prevent movement during impact from increasing the impact force.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pusher plate for rolling mandrels in heat exchanger tubes, comprising a base and a limiting arm, characterized in that: The base has a first through hole in the center, and an installation groove is provided on one side of the base outside the through hole. The upper and lower ends of one side of the limiting arm are provided with connecting arms, and the center of the other side of the limiting arm is provided with a semi-circular groove. The two limiting arms are connected to the left and right sides of the installation groove through the connecting arms. When the other side of the two limiting arms is closed, a second through hole is formed.

2. The pusher plate for rolling mandrels in heat exchanger tubes according to claim 1, characterized in that: The inner diameter of the second through hole is smaller than that of the first through hole.

3. The pusher plate for rolling mandrels in heat exchanger tubes according to claim 1, characterized in that: The upper connecting arm of the limiting arm is attached to the inner wall of the mounting groove, and the lower connecting arm of the limiting arm is attached to the inner wall of the mounting groove. One rotating shaft passes through the upper connecting arm and is rotatably connected to the inner wall of the mounting groove, and the other rotating shaft passes through the lower connecting arm and is rotatably connected to the inner wall of the mounting groove.

4. The pusher plate for rolling mandrels in heat exchanger tubes according to claim 3, characterized in that: The mounting slot is square.

5. The pusher plate for rolling mandrels in heat exchanger tubes according to claim 1, characterized in that: The base is disc-shaped.

6. The pusher plate for rolling mandrels in heat exchanger tubes according to claim 1, characterized in that: The outer sides of the two limiting arms form the pressure surface of the main tube.

7. The pusher plate for rolling mandrels in heat exchanger tubes according to claim 6, characterized in that: The inner sides of the two limit arms are in contact with the bottom surface of the mounting groove.

8. The pusher plate for rolling mandrels in heat exchanger tubes according to claim 1, characterized in that: The push rod plate can be connected to the screw-driven push assembly.

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