Conveniently detachable self-made puller

Abstract

A homemade puller for easy disassembly includes a pump body end cover and a shaft mounted on the pump body end cover, as well as two channel steels and two screw rods. The two screw rods are threaded to both ends of the pump body end cover. The two channel steels are mounted on the outer ends of the two screw rods and are symmetrically arranged on the upper and lower sides of the two screw rods. The two channel steels are detachably connected, and each of the outer ends of the two screw rods is threaded with a limiting nut to prevent the two channel steels from loosening from the screw rods. A jack is placed between the shaft and the two channel steels. This homemade puller allows for easy removal of the shaft from the pump body end cover.

Description

Technical Field

[0001] This utility model relates to the field of disassembly tools, specifically to a homemade puller that facilitates disassembly. Background Technology

[0002] Melt pumps are mainly used for conveying, pressurizing, and metering high-temperature, high-viscosity polymer melts. They are widely used abroad in the extrusion molding of plastics, resins, rubber, and synthetic fibers, such as in granulation, film, pipe, sheet, plate, synthetic fiber, optical fiber, medical plastic catheters, and machinery manufacturing. With the increasing development of the machinery industry, melt pumps are gradually being adopted and applied in the Chinese market. After prolonged use, maintenance of melt pumps is an essential step. Melt pumps generally consist of a pump body end cover and a shaft mounted on the end cover. Due to the tight connection between the shaft and the pump body end cover, it is generally impossible to disassemble the shaft manually. Therefore, a homemade puller that can easily remove the shaft from the pump body end cover is needed. Utility Model Content

[0003] The present invention aims to solve the above-mentioned technical problems by providing a homemade puller that is easy to disassemble, which can easily remove the shaft from the pump body end cover.

[0004] To solve the above-mentioned technical problems, the present invention provides a self-made puller that is easy to disassemble, as a technical solution:

[0005] The system includes a pump body end cover and a shaft mounted on the pump body end cover, as well as two channel steels and two screw rods. The two screw rods are threaded to both ends of the pump body end cover. The two channel steels are installed on the outer ends of the two screw rods and are symmetrically arranged on the upper and lower sides of the two screw rods. The two channel steels are detachably connected, and the outer ends of the two screw rods are threaded with limiting nuts to prevent the two channel steels from loosening from the two screw rods. A jack is placed between the shaft and the two channel steels.

[0006] The two channel steels are connected by two sets of bolts.

[0007] Each bolt group includes a connecting bolt and a connecting nut; the bottom end of the connecting bolt passes through the two channel steels and is threadedly connected to the connecting nut.

[0008] Both of the channel steels are provided with adjustment grooves; the bottom end of the connecting bolt passes through the adjustment grooves of the two channel steels and is threadedly connected to the connecting nut.

[0009] Both sets of bolts are located between the two screws, and each set of bolts rests against the side of the two screws.

[0010] A washer is placed between the limiting nut and the two channel steels.

[0011] The technical effects that this utility model can achieve are:

[0012] 1. This utility model constructs a platform that facilitates the ejection of the shaft by using two screws and two channel steels. A jack is placed between the shaft and the two channel steels, and the shaft can be ejected outward by using the jack, making the disassembly of the shaft relatively convenient.

[0013] 2. This utility model makes reasonable use of the threaded hole of the pump body end cover, and the screw is connected to the pump body end cover through the threaded hole;

[0014] 3. The two channel steels of this utility model are connected by connecting bolts and connecting nuts, so the distance between the two channel steels can be adjusted, thus making it suitable for screws of different diameters. In addition, the position of the two sets of bolts can also be adjusted by designing adjustment grooves, making it highly adaptable. Attached Figure Description

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0016] Figure 1 This is a schematic diagram of the structure of a self-made puller that is easy to disassemble according to this utility model;

[0017] Figure 2 This is a schematic diagram of a homemade puller that is easy to disassemble (without a jack).

[0018] Figure 3 yes Figure 2 Enlarged view of part A;

[0019] Figure 4 yes Figure 2 Exploded view;

[0020] Figure 5 This is a cross-sectional view of a homemade puller that is easy to disassemble according to this utility model;

[0021] Figure 6 yes Figure 5 Enlarged view of part B. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] See Figures 1 to 6 .

[0024] A self-made puller that is easy to disassemble includes a pump body end cover 1 and a shaft 2 mounted on the pump body end cover 1. It also includes two channel steels 4 and two screw rods 3. The two screw rods 3 are threaded to both ends of the pump body end cover 1. The two channel steels 4 are mounted on the outer ends of the two screw rods 3, and are symmetrically arranged on the upper and lower sides of the two screw rods 3. The two channel steels 4 are detachably connected, specifically, by two sets of bolts. Each bolt set includes a connecting bolt 11 and a connecting nut 12, with the bottom end of the connecting bolt 11 passing through the two channel steels 4. The connecting nut 12 is threadedly connected to the connecting bolt 11. More specifically, both channel steels 4 are provided with adjustment grooves 13, and the bottom end of the connecting bolt 11 passes through the adjustment grooves 13 of the two channel steels 4 and is threadedly connected to the connecting nut 12. In this utility model, the two channel steels 4 are connected by the connecting bolt 11 and the connecting nut 12, which can be used for screws 3 of different diameters. The design of the adjustment grooves 13 can adjust the position of the two sets of bolts, making it more versatile. Preferably, both sets of bolts are located between the two screws 3, and the two sets of bolts are respectively against the sides of the two screws 3.

[0025] Both screw rods 3 have threaded connections at their outer ends to limit nuts 5 to prevent the two channel steels 4 from loosening from the screw rods 3. A jack 6 is placed between the shaft 2 and the two channel steels 4. Specifically, a washer 21 is placed between the limit nut 5 and the two channel steels 4. This utility model limits the channel steels 4 by limiting the channel steels 4, so that during the process of the jack 6 pushing the shaft 2, the two channel steels 4 can provide abutment surface for the jack 6, so that the shaft 2 can be pushed outward by the jack 6.

[0026] During normal application, since the threaded hole diameters of many pump body end covers 1 are not the same, it is necessary to equip them with screws 3 of different diameters. The two channel steels 4 are connected by connecting bolts 11 and connecting nuts 12, which can accommodate screws 3 of different diameters. Furthermore, since the spacing between the threaded holes at both ends of many pump body end covers 1 is not the same, an adjustment groove 13 is designed to adjust the position of the two sets of bolts. This utility model has a simple structure and strong applicability.

Claims

1. A homemade puller that is easy to disassemble, comprising a pump body end cover (1) and a shaft (2) mounted on the pump body end cover (1), characterized in that: It also includes two channel steels (4) and two screw rods (3); the two screw rods (3) are respectively threaded to both ends of the pump body end cover (1); the two channel steels (4) are installed on the outer ends of the two screw rods (3), and the two channel steels (4) are symmetrically arranged on the upper and lower sides of the two screw rods (3); the two channel steels (4) are detachably connected, and the outer ends of the two screw rods (3) are threaded with limiting nuts (5) to prevent the two channel steels (4) from loosening from the two screw rods (3); a jack (6) is placed between the shaft (2) and the two channel steels (4).

2. The homemade puller that is easy to disassemble according to claim 1, characterized in that: The two channel steels (4) are connected by two sets of bolts.

3. A homemade puller that is easy to disassemble according to claim 2, characterized in that: Each bolt group includes a connecting bolt (11) and a connecting nut (12); the bottom end of the connecting bolt (11) passes through the two channel steels (4) and is threadedly connected to the connecting nut (12).

4. A homemade puller that is easy to disassemble according to claim 3, characterized in that: Both of the channel steels (4) are provided with adjustment grooves (13); the bottom end of the connecting bolt (11) passes through the adjustment grooves (13) of the two channel steels (4) and is threadedly connected to the connecting nut (12).

5. A homemade puller that is easy to disassemble according to claim 2, characterized in that: Both sets of bolts are located between the two screws (3), and the two sets of bolts are respectively against the sides of the two screws (3).

6. A homemade puller that is easy to disassemble according to claim 1, characterized in that: A washer (21) is placed between the limiting nut (5) and the two channel steels (4).

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