A screw-type puller device suitable for disassembling shaftless through equipment

Abstract

The utility model discloses a spiral formula puller device suitable for dismantling shaftless penetrating equipment, including installation crossbeam, transmission mechanism, hook body mechanism and be equipped with left support column and right support column on installation crossbeam, among them, installation crossbeam central position place is equipped with longitudinal through -hole, transmission mechanism includes screw rod, rotary handle III and nut block, and screw rod passes through longitudinal through -hole vertical penetration installation crossbeam, and is fixedly connected with limit piece on the upper and lower sides of screw rod respectively who wears out longitudinal through -hole, and the end of transmission mechanism is connected hook body mechanism, and hook body mechanism includes at least two hook bodies, and hook body is connected with nut block through connecting plate, the upper end of left support column is equipped with rotary handle I, and the upper end of right support column is equipped with rotary handle II, and through respectively tightening rotary handle I and rotary handle II, realize left support column, right support column and the stable connection of installation crossbeam. The device is suitable for dismantling shaftless penetrating equipment, completes directional drawing, solves the problem that shaftless penetrating equipment can not be stressed stably.

Description

Technical Field

[0001] This utility model relates to a spiral puller device, specifically a spiral puller device suitable for disassembling shaftless through-hole equipment, belonging to the technical field of mechanical parts loading and unloading tools. Background Technology

[0002] Currently, traditional pullers are commonly used pulling tools in mechanical repair. Their typical structure includes a central screw, a center point, and 2-3 adjustable claw hooks. During operation, the center point presses against the shaft-like structure of the part to be pulled (serving as a support point), while the claw hooks grip the outer circumference of the part. Rotating the central screw drives the claw hooks to pull the part out of the equipment. This structure relies on a "shaft-like through-hole structure" as a support point and is suitable for equipment with a through-hole shaft, such as bearings and pulleys. However, traditional pullers are not suitable for equipment without a through-hole shaft (such as a self-locking drill bit).

[0003] The prior art CN219649789U discloses a "three-jaw puller tool for preventing disengagement," which mainly solves the problems of existing three-jaw pullers where, when the outer diameter of a cylindrical part is large, multiple people are needed to install the pullers, and if disengagement occurs, it can easily injure the user, posing a safety hazard; and the uneven force between the puller and the cylindrical part at three points can easily cause it to fall off, resulting in damage to the cylindrical part and the three-jaw puller. CN108262714A discloses an "adjustable multi-jaw synchronous puller," which mainly solves the problem that the initial installation of each claw is very inconvenient when clamping the puller, requiring two people to cooperate, which affects work efficiency.

[0004] Therefore, there is an urgent need for a spiral puller device suitable for disassembling shaftless through-hole devices (such as self-locking heads of electric drills). Summary of the Invention

[0005] To address the limitations of existing technologies in disassembling shaftless penetrating devices, this invention proposes a spiral puller device suitable for such disassembly. This solution, through the installation of a crossbeam, transmission mechanism, hook mechanism, left support column, and right support column, is suitable for shaftless penetrating devices, enabling directional pulling and solving the problem of unstable force distribution in these devices.

[0006] To achieve the above technical objectives, the following technical solution is proposed: The purpose of this technical solution is to provide: a spiral puller device suitable for disassembling shaftless through-hole equipment, comprising a mounting beam, a transmission mechanism, a hook mechanism for hooking the component to be pulled out, and a left support column and a right support column vertically mounted on the mounting beam; wherein, A longitudinal through hole is provided at the center of the mounting beam; The transmission mechanism includes a screw, a rotary handle III, and a nut block. The screw passes vertically through a longitudinal through hole to the mounting beam, and limit components are fixedly connected to the upper and lower sides of the screw that exit the longitudinal through hole. The upper end of the screw is equipped with a rotary handle III, and the lower end of the screw is fitted with a nut block. The hook mechanism includes at least two hooks, which are connected to the nut block via a connecting plate; The upper end of the left support column is equipped with a rotating handle I, and the upper end of the right support column is equipped with a rotating handle II. The rotating handle I and rotating handle II are tightened to achieve a stable connection between the left support column, the right support column and the mounting beam.

[0007] Preferably, the screw is located between the left support column and the right support column.

[0008] Preferably, the left support column, screw, and right support column are arranged in parallel. This arrangement ensures that the device is easy and convenient to install, has high assembly accuracy, and guarantees the stability of the corresponding structure. On the other hand, it ensures that the corresponding moving parts are subjected to uniform force, avoids stress concentration, slows down the wear rate, and extends the service life of the corresponding moving parts.

[0009] Preferably, both the left and right support columns are provided with transverse through holes. One end of the mounting beam passes through the transverse through hole on the left support column and extends outward, while the other end of the mounting beam passes through the transverse through hole on the right support column and extends outward. The upper ends of both the left and right support columns are provided with threaded holes, which are perpendicular to and communicate with the transverse through holes. The lower ends of rotating handles I and II are respectively provided with studs, which are threaded into the threaded holes. This arrangement allows for flexible adjustment of the positions of the left and right support columns on the mounting beam and their distance from the studs according to the shape and position of the equipment body and the component to be pulled (the specific position of the left support column on the mounting beam can be adjusted and fixed by rotating handle I, and the specific position of the right support column on the mounting beam can be adjusted and fixed by rotating handle II), thereby improving the effectiveness of the pulling operation.

[0010] Preferably, the connecting plate and the hook body are connected in a movable manner, and the connecting plate and the nut block are connected in a movable manner.

[0011] Preferably, there are three hooks, and the distance between adjacent hooks is equal.

[0012] Preferably, the lower end of the left support column is provided with a left anti-slip component, and the lower end of the right support column is provided with a right anti-slip component.

[0013] Preferably, the left support column and the left anti-slip component are integrally formed, and the right support column and the right anti-slip component are integrally formed.

[0014] In this technical solution, the "shaftless through-hole device" can also be called a "non-through-hole rotating shaft device", which specifically refers to a device that has a rotating shaft, but the rotating shaft does not penetrate the device.

[0015] The working principle of this technical solution is as follows: When the handle III is rotated, the screw rotates, thereby driving the nut block to rise along the thread (gradually approaching the direction of the mounting beam); the upward movement of the nut block, in turn, drives the connecting plate to move upward; through the transmission of force, the upward movement of the connecting plate, in turn, drives the hook body to move upward, and the connecting plate and the hook body will hook the part to be pulled out during the upward process and form a tight force relationship, so that the part to be pulled out moves away from the equipment body, and finally realizes the disassembly of the shaftless through-hole equipment.

[0016] The positional relationships such as "upper", "lower", "between", "both sides", "one end", and "the other end" involved in this technical solution are defined according to the actual usage conditions and are conventional terms in this technical field, as well as conventional terms used by those skilled in the art in actual use.

[0017] In the description of this technical solution, it should be noted that, unless otherwise explicitly specified and limited, the terms "setting" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The beneficial technical effects of adopting this technical solution are as follows: I. This utility model is applicable to shaftless through-hole equipment: it breaks through the dependence of traditional pullers on "shaft-type support points", and achieves stable support by pressing the equipment body of the component to be pulled with the left support column and the right support column, which can effectively pull out shaftless through-hole components such as electric drill self-locking heads; II. In the process of pulling, this utility model can effectively protect the integrity of the equipment to be pulled: the anti-slip parts of the left and right support columns are in flexible contact with the equipment body, avoiding damage to the equipment shell caused by the lack of support points in traditional pullers; Third, this utility model is highly efficient and stable in operation: the symmetrical structure of the hook mechanism with the left and right support columns ensures balanced force, reduces the risk of slippage, and improves the pulling efficiency by more than 30%. Fourth, this utility model has strong versatility: by adjusting the size of the hook mechanism and the spacing between the left and right support columns, it can be adapted to different models of shaftless penetrating equipment, thus having a wide range of applications. Attached Figure Description

[0019] Figure 1This is a diagram showing the working state of this utility model; Figure 2 This is a top view of the present invention; Figure 3 This is a front view of the component to be removed in Example 1; Figure 4 This is a perspective view of the component to be removed in Example 1; In the diagram: 1. Install the crossbeam; 101. Longitudinal through hole; 2. Left support column; 201. Left anti-slip component; 3. Transmission mechanism, 301. Screw, 302. Rotary handle III, 303. Nut block; 4. Right support column; 401. Right anti-slip component; 5. Rotating handle I, 6. Rotating handle II, 7. Hook mechanism, 8. Limiting component, 9. Connecting plate, 10. Body of shaftless through-hole equipment, 11. Component to be pulled out, 12. Rotating shaft. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] Example 1 This embodiment provides: a suitable device for disassembling a shaftless, through-type spiral puller, such as... Figure 1-2 As shown, it includes a mounting beam 1, a transmission mechanism 3, a hook mechanism 7, and a left support column 2 and a right support column 4 vertically mounted on the mounting beam 1; wherein, Mounting beam 1: A longitudinal through hole 101 is provided at the center position for the transmission mechanism 3 to pass through it; Transmission mechanism 3 includes a screw 301, a rotating handle Ⅲ 302, and a nut block 303. The screw 301 vertically penetrates the mounting beam 1 through a longitudinal through hole 101. Limiting components 8 are fixedly connected (e.g., welded) to the upper and lower sides of the screw 301 that protrudes from the longitudinal through hole 101. In one specific embodiment, the limiting component 8 is an annular ring, with the inner side of the annular ring welded to the outer side of the screw 301. The outer diameter of the annular ring is larger than the inner diameter of the longitudinal through hole 101, thereby limiting the screw 301 within the longitudinal through hole 101 for rotational movement. The upper end of the screw 301 is provided with a rotating handle Ⅲ 302, and the lower end of the screw 301 is fitted with a nut block 303 (the screw 301 has external threads, and the nut block 303 has internal threads that mate with the external threads). During operation, the screw 301 rotates under the action of the rotating handle Ⅲ302. At this time, the two limiting members 8 are used to vertically limit the screw 301 (that is, to ensure that the screw 301 does not move up and down relative to the mounting beam 1 during rotation, but only rotates). The upper limiting member 8 is used to prevent the screw 301 from moving down, and the lower limiting member 8 is used to prevent the screw 301 from moving up). The nut block 303 moves upward along the thread under the action of the screw 301's rotation. It should be noted that some equipment to be disassembled cannot lock its shaft when the machine is stopped. When using this device to disassemble such equipment, in order to prevent the nut block 303 from rotating synchronously with the screw 301, external force is required to assist in disassembly. In this case, the nut block can be prevented from rotating synchronously with the screw by holding the hook mechanism 7 or placing a stick between the two hooks in the hook mechanism 7 to fix the hook mechanism 7.

[0022] Hook mechanism 7: Used to hook the part 11 to be pulled . Hook mechanism 7 includes at least two hooks, which are connected to the nut block 303 via connecting plate 9. In a preferred embodiment, there are three hooks, and the distance between adjacent hooks is equal to ensure uniform pulling force (uniform force at three points), thus better completing the pulling operation. During operation, hook mechanism 7 is used to hook the part 11 to be pulled (e.g., ... Figure 3-4 (as shown); the shape of the hook body is adapted to the shape of the part to be pulled 11 (e.g., the self-locking head of an electric drill) (e.g., it can be designed as an arc-shaped hook or an adjustable claw) to firmly grip the part to be pulled 11, and can be designed as an adjustable structure according to the size of the part to be pulled 11 to grip shaftless parts such as the self-locking head of an electric drill. Left support column 2 and right support column 4: The upper end of the left support column 2 is equipped with a rotating handle I5, and the upper end of the right support column 4 is equipped with a rotating handle II6. The rotating handles I5 and II6 are tightened to achieve a stable connection between the left support column 2, the right support column 4 and the mounting beam 1. Both the left support column 2 and the right support column 4 are rigid rod-shaped structures, symmetrically distributed on both sides of the mounting beam 1. Both the left support column 2 and the right support column 4 have transverse through holes through which the mounting beam 1 passes. Simultaneously, both the left support column 2 and the right support column 4 have threaded holes at their ends. The lower ends of the rotating handles I5 and II6 are respectively equipped with studs, which are threaded into the threaded holes at the ends of the left support column 2 and the right support column 4.

[0023] The working principle involved is as follows: I. Device Debugging and Installation Stage: First, loosen the rotating handles I5 and II6. Based on the machine body of the equipment to be operated and the part to be pulled 11, adjust the specific positions of the left support column 2 and the right support column 4 on the installation beam 1 and their distance from the screw 301. Then, tighten the rotating handles I5 and II6. The rotation of the rotating handles I5 and II6 will drive the screw down until it contacts the beam, so that the left support column 2 and the right support column 4 are pressed against the installation beam 1 to prevent movement. The left support column 2 and the right support column 4 are directly pressed against the machine body 10 of the shaftless penetrating equipment (such as the housing of an electric drill) to form a stable reaction force support point to prevent the tool from deviating. At the same time, hook the hook body onto the part to be pulled 11.

[0024] II. Device Operation Stage: When rotating handle Ⅲ302, the screw 301 rotates, causing the nut block 303 to rise along the thread (gradually approaching the mounting beam 1); the upward movement of the nut block 303 (the direction of movement of the nut block 303 is determined by the thread direction and rotation direction on the screw 301) then drives the connecting plate 9 to move upward; through the transmission of force, the upward movement of the connecting plate 9 then drives the hook body to move upward, and the connecting plate 9 and the hook body will hook the part to be pulled 11 during the upward process and form a tight force relationship, so that the part to be pulled moves away from the machine body, and finally realizes the disassembly of the shaftless through-hole device.

[0025] This embodiment replaces the traditional puller's "top-tightening shaft structure" support method with "left support column 2 and right support column 4 pressing against the equipment body". Combined with the directional pulling of the hook mechanism 7, it solves the problem that shaftless through-hole equipment cannot be stably stressed.

[0026] Example 2 Based on Example 1, this example further specifies the following to improve the stability of the drawing operation and the effectiveness of force transmission: The connecting plate 9 is connected to the hook body in a movable manner, and the connecting plate 9 is also connected to the nut block 303 in a movable manner.

[0027] In one specific implementation, when there are three hooks, there are six connecting plates 9. The connecting plates 9 are divided into three groups, with one group of connecting plates 9 corresponding to one hook. One side of the hook is connected to a connecting plate 9, and the other side of the hook is connected to a connecting plate 9. One end of the connecting plate 9 is connected to the hook in a movable manner, and the other end is connected to the upper mounting seat of the nut block 303 in a movable manner. Specifically, the movable connection can be achieved through the rotating shaft 12.

[0028] Example 3 Based on Examples 1-2, this example further limits the following features to improve the stability of the drawing operation and prevent the device from shifting: The lower end of the left support column 2 is provided with a left anti-slip component 201, and the lower end of the right support column 4 is provided with a right anti-slip component 401. The anti-slip component can be a rubber pad or a serrated structure.

[0029] More preferably, the anti-slip component is a horizontal plate with a rubber pad, and the left support column 2 is integrally formed with the horizontal plate. This integral forming design can improve the overall structure and durability of the device to a certain extent.

[0030] During operation, the anti-slip components of the left support column 2 and right support column 4 directly press against the body 10 of the shaftless penetrating device (such as the casing of an electric drill), forming a stable reaction force support point. The horizontal plate increases the contact area, thereby ensuring the stability of the support point.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spiral puller device suitable for disassembling shaftless through-hole equipment, characterized in that, It includes a mounting beam (1), a transmission mechanism (3), a hook mechanism (7) for hooking the part to be pulled (11), and a left support column (2) and a right support column (4) vertically mounted on the mounting beam (1); wherein, A longitudinal through hole (101) is provided at the center of the mounting beam (1); The transmission mechanism (3) includes a screw (301), a rotary handle III (302) and a nut block (303). The screw (301) passes vertically through the longitudinal through hole (101) and is mounted on the crossbeam (1). Limiting components (8) are fixedly connected to the upper and lower sides of the screw (301) that pass through the longitudinal through hole (101). The upper end of the screw (301) is provided with a rotary handle III (302), and the lower end of the screw (301) is fitted with a nut block (303). The hook mechanism (7) includes at least two hooks, which are connected to the nut block (303) via a connecting plate (9); The upper end of the left support column (2) is provided with a rotating handle I (5), and the upper end of the right support column (4) is provided with a rotating handle II (6).

2. The spiral puller device for disassembling shaftless through-hole equipment according to claim 1, characterized in that, The screw (301) is located between the left support column (2) and the right support column (4).

3. The spiral puller device for disassembling shaftless through-hole equipment according to claim 1, characterized in that, The left support column (2), screw (301) and right support column (4) are arranged in parallel.

4. The spiral puller device for disassembling shaftless through-hole equipment according to claim 1, characterized in that, Both the left support column (2) and the right support column (4) are provided with transverse through holes. One end of the mounting beam (1) passes through the transverse through hole on the left support column (2) and extends outward. The other end of the mounting beam (1) passes through the transverse through hole on the right support column (4) and extends outward. The upper ends of the left support column (2) and the right support column (4) are provided with threaded holes, which are perpendicular to and connected to the transverse through holes; The lower ends of the rotating handle I (5) and rotating handle II (6) are respectively provided with studs, which are fitted into the threaded holes through the threaded structure.

5. The spiral puller device for disassembling shaftless through-hole equipment according to any one of claims 1-4, characterized in that, The connecting plate (9) is connected to the hook body in a movable manner, and the connecting plate (9) is connected to the nut block (303) in a movable manner.

6. The spiral puller device for disassembling shaftless through-hole equipment according to any one of claims 1-4, characterized in that, There are three hooks, and the distance between adjacent hooks is equal.

7. The spiral puller device for disassembling shaftless through-hole equipment according to any one of claims 1-4, characterized in that, The lower end of the left support column (2) is provided with a left anti-slip component (201), and the lower end of the right support column (4) is provided with a right anti-slip component (401).

8. The spiral puller device for disassembling shaftless through-hole equipment according to claim 7, characterized in that, The left support column (2) and the left anti-slip component (201) are integrally formed, and the right support column (4) and the right anti-slip component (401) are integrally formed.

Images