Loader engine crankshaft sealing ring dismounting device

Abstract

The utility model discloses a dismounting device for a sealing ring of a crankshaft of a loading machine engine, which belongs to the technical field of mechanical maintenance tools and comprises a positioning disc used for fixing the sealing ring of the crankshaft and a small puller mounted at the upper end of the positioning disc, and the small puller is movably mounted at the upper end of the positioning disc. A self-tapping screw and a connecting part are connected and fastened with a hole groove in the upper end of a sealing ring, then an adjusting screw rod is installed, after the adjusting screw rod is in place, an operation tool is used for rotating a hexagonal adjusting part at the end, the interior of the hexagonal adjusting part abuts against the inner side of the sealing ring installation position, and the installation shell and the crankshaft sealing ring are separated from the interior of a sealing ring installation cavity; under the condition that a tool is not used for damaging the sealing ring, the sealing ring is taken out, if the adjusting screw rod is inconvenient to operate, the adjusting screw rod can be replaced by a small puller, and operation and disassembly are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical maintenance tools, in particular to a device for removing a crankshaft sealing ring of a loader engine. Background Art

[0002] Loaders are earthmoving machines widely used in construction projects such as highways, railways, buildings, hydropower stations, ports, and mines. They are primarily used for shoveling bulk materials such as soil, sand, gravel, lime, and coal, but can also perform light excavation of ore and hardened soil. By replacing various auxiliary working devices, they can also perform bulldozing, lifting, and loading and unloading of other materials such as wood. The loader engine crankshaft is a critical component, responsible for ensuring the proper functioning of the piston and transmitting the loader's power. During engine crankshaft installation, the internal sealing ring plays a particularly important role. However, due to severe wear, it requires regular replacement to ensure proper engine operation.

[0003] Since the sealing ring is embedded in the engine crankshaft sealing ring installation cavity, when maintenance personnel replace the sealing ring, they need to use tools to use brute force to deform the sealing ring before they can remove it, which increases the difficulty of the work, is time-consuming and labor-intensive, and easily causes wear on the crankshaft end. Utility Model Content

[0004] The utility model aims to provide a device for removing the crankshaft sealing ring of a loader engine, so as to solve the technical problem in the background technology that maintenance personnel need to use tools and brute force to deform the sealing ring before removing it when replacing it, which increases the difficulty of the work.

[0005] In order to achieve the above purpose, the specific technical solution of the utility model is as follows: a loader engine crankshaft seal ring removal device, comprising

[0006] A positioning plate for fixing a crankshaft sealing ring, and a small puller mounted on the upper end of the positioning plate, wherein the small puller is movably mounted on the upper end of the positioning plate;

[0007] The positioning plate includes a mounting shell and a connecting portion that is slidably installed in the middle of the mounting shell. The connecting portion is slidably installed in an adjustment slot opened at the upper end of the mounting shell. A positioning nut is installed at the outer center of the mounting shell. The positioning nut is welded and installed on the outer surface of the mounting shell, and an adjusting screw is installed on the outside. The adjusting screw thread is installed in the middle of the positioning nut.

[0008] Preferably, the adjusting screw is installed through the positioning plate, and a hexagonal adjusting portion is fixedly installed on the end thereof.

[0009] Preferably, the connecting portion includes a moving rod movably mounted inside the adjustment slots of the mounting shells on both sides, a clamping head is provided on both sides of the moving rod, and a mounting hole is provided in the middle of the moving rod.

[0010] Preferably, a rotating disk is installed inside the mounting shell, and arc-shaped sliding grooves are evenly opened on the upper end of the rotating disk. The angle of the rotating disk is adjusted by an adjusting part installed in the inner cavity of the mounting shell.

[0011] Preferably, the adjusting part includes a worm wheel fixedly mounted on the upper end of the rotating disk and a worm mounted on one side of the worm wheel. The worm is mounted on the inner wall of the inner cavity of the mounting shell on the other side through a bearing. A drive rod is mounted on one side of the worm, and the drive rod is movably inserted on one side of the worm.

[0012] Preferably, a connector is provided at one end of the driving rod, and a connecting groove matching the connector is provided at one side of the worm, and the connecting groove and the connecting head match in size and shape.

[0013] The utility model provides a loader engine crankshaft sealing ring removal device with the following advantages:

[0014] The loader engine crankshaft sealing ring removal device is characterized in that when the crankshaft sealing ring needs to be removed, it is connected and fastened to the upper end hole groove of the sealing ring through self-tapping screws and a connecting part, and then an adjusting screw is installed. After it is in place, an operating tool is used to rotate the hexagonal adjusting part at the end so that its inside presses against the inner side of the sealing ring installation part, and the mounting shell and the crankshaft sealing ring are separated from the inside of the sealing ring installation cavity. The sealing ring can be taken out without using tools to damage the sealing ring. If the adjusting screw is inconvenient to operate, the adjusting screw can be replaced with a small puller to facilitate operation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the positioning plate structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the connecting portion structure of the utility model;

[0019] Figure 4This is a schematic diagram of the internal structure of the installation shell of the utility model;

[0020] Figure 5 For the utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0021] Explanation of the marks in the figure: 100, small puller; 200, positioning plate; 210, mounting shell; 220, adjusting slot; 230, connecting part; 231, moving rod; 232, mounting hole; 240, positioning nut; 250, adjusting part; 251, worm gear; 252, worm; 253, driving rod; 254, connecting slot; 255, connecting head; 260, rotating disk; 261, arc-shaped slide groove; 300, adjusting screw; 310, hexagonal adjusting part. DETAILED DESCRIPTION

[0022] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0025] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0026] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0027] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a loader engine crankshaft seal ring removal device of the present invention in conjunction with the accompanying drawings.

[0028] like Figure 1-Figure 5 As shown, the utility model is a loader engine crankshaft sealing ring removal device, including a positioning plate 200 for fixing the crankshaft sealing ring, and a small puller 100 installed on the upper end of the positioning plate 200 for pulling the positioning plate 200. The small puller 100 is movably installed on the upper end of the positioning plate 200 for pulling the positioning plate 200 to move.

[0029] The positioning disk 200 includes a mounting shell 210 for connecting and installing with the crankshaft sealing ring and a connecting portion 230 slidably installed in the middle of the mounting shell 210 for connecting the mounting shell 210 and the crankshaft sealing ring. The connecting portion 230 is slidably installed in the adjustment groove 220 opened at the upper end of the mounting shell 210. A positioning nut 240 is installed at the outer center of the mounting shell 210. The positioning nut 240 is welded and installed on the outer surface of the mounting shell 210, and an adjusting screw 300 is installed on the outside for pushing the mounting shell 210 to drive the crankshaft sealing ring to move. The adjusting screw 300 is threadedly installed in the middle of the positioning nut 240. The adjusting screw 300 passes through the positioning disk 200 and is fixedly installed at the end with a hexagonal adjustment portion 310 for easy rotation by the user.

[0030] When the crankshaft sealing ring needs to be disassembled, it is connected and fastened to the upper end hole groove of the sealing ring through the self-tapping screw and the connecting part 230, and then the adjusting screw 300 is installed. After it is in place, the hexagonal adjusting part 310 at the end is rotated with an operating tool so that its inside presses against the inner side of the sealing ring installation. The mounting shell 210 and the crankshaft sealing ring are separated from the inside of the sealing ring installation cavity. The sealing ring is taken out without using tools to damage the sealing ring. If the adjusting screw 300 is inconvenient to operate, the adjusting screw 300 can be replaced with a small puller 100 for easy operation and disassembly.

[0031] A rotating disk 260 is installed inside the mounting shell 210 for driving the connecting part 230 to move. The upper end of the rotating disk 260 is evenly provided with arc-shaped sliding grooves 261 for installing the connecting part 230. The connecting part 230 adjusts its position through the arc-shaped sliding grooves 261, and the rotating disk 260 adjusts its angle through the adjusting part 250 installed in the inner cavity of the mounting shell 210.

[0032] The connecting part 230 includes a movable rod 231 movably mounted inside the adjustment slot 220 of the mounting shell 210 on both sides. Both sides of the movable rod 231 are provided with a clamping head for limiting the movable rod 231. The middle part of the movable rod 231 is provided with a mounting hole 232 for self-tapping screws to pass through for installation and fixation.

[0033] The adjusting part 250 includes a worm gear 251 fixedly mounted on the upper end of the rotating disk 260 for driving the rotating disk 260 to rotate, and a worm 252 mounted on one side of the worm gear 251 for driving the worm gear 251 to rotate. The worm gear 252 is mounted on the inner wall of the inner cavity of the mounting shell 210 on the other side through a bearing. A driving rod 253 for adjusting the rotation of the worm gear 252 is installed on one side of the worm gear 252, and the driving rod 253 is movably inserted on one side of the worm gear 252.

[0034] When it comes to sealing rings of different sizes, the worm 252 can be turned to adjust the worm wheel 251 to rotate, thereby driving the rotating disk 260 fixed at the lower end to rotate, and the arc-shaped slide groove 261 opened at the upper end drives the connecting part 230 movably installed inside to move, and then the connecting part 230 can be moved along the position of the adjustment groove 220. After adjusting to the appropriate position, it is tightened with self-tapping screws. It is easy to adjust, simple to operate, and has a wider range of applications.

[0035] Furthermore, the mounting hole 232 may have a certain length so as to fine-tune the position of the self-tapping screw at the hole position of the crankshaft sealing ring to avoid the situation where the self-tapping screw is misplaced and cannot be installed.

[0036] Furthermore, a connecting head 255 for connecting to the worm 252 is provided at one end of the driving rod 253, and a connecting groove 254 matching the connecting head 255 is provided on one side of the worm 252. The connecting groove 254 and the connecting head 255 match in size and shape, which facilitates the rotation of the worm 252 and can be pulled out when not in use for easy use.

[0037] The working principle of a loader engine crankshaft sealing ring removal device: when the crankshaft sealing ring needs to be removed, it is connected and fastened to the upper end hole groove of the sealing ring through the self-tapping screw and the connecting part 230, and then the adjusting screw 300 is installed. After it is in place, the hexagonal adjustment part 310 at the end is rotated using an operating tool so that its inside presses against the inner side of the sealing ring installation part, and the mounting shell 210 and the crankshaft sealing ring are separated from the inside of the sealing ring installation cavity. The sealing ring is taken out without using tools to damage the sealing ring. If the adjusting screw 300 is inconvenient to operate, the adjusting screw 300 can be replaced with a small puller 100 for easy operation and disassembly.

[0038] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A loader engine crankshaft seal removal device, characterized by: include A positioning plate (200) for fixing a crankshaft sealing ring, and a small puller (100) mounted on the upper end of the positioning plate (200), wherein the small puller (100) is movably mounted on the upper end of the positioning plate (200); A positioning plate (200) includes a mounting shell (210) and a connecting portion (230) slidably mounted in the middle of the mounting shell (210), wherein the connecting portion (230) is slidably mounted in an adjustment slot (220) provided at the upper end of the mounting shell (210), a positioning nut (240) is mounted at the outer center of the mounting shell (210), the positioning nut (240) is welded to the outer surface of the mounting shell (210), and an adjusting screw (300) is mounted on the outer side, wherein the adjusting screw (300) is threadedly mounted in the middle of the positioning nut (240).

2. The loader engine crankshaft seal ring removal device according to claim 1, characterized in that: The adjusting screw (300) is installed through the positioning plate (200), and a hexagonal adjusting portion (310) is fixedly installed on the end thereof.

3. The loader engine crankshaft seal ring removal device according to claim 2, characterized in that: The connecting portion (230) comprises a moving rod (231) movably mounted inside the adjustment slots (220) of the mounting shells (210) on both sides, a clamping head is provided on both sides of the moving rod (231), and a mounting hole (232) is provided in the middle of the moving rod (231).

4. The loader engine crankshaft seal ring removal device according to claim 3, characterized in that: A rotating disk (260) is installed inside the mounting shell (210), and arc-shaped sliding grooves (261) are evenly opened on the upper end of the rotating disk (260). The angle of the rotating disk (260) is adjusted by an adjusting portion (250) installed in the inner cavity of the mounting shell (210).

5. The loader engine crankshaft seal ring removal device according to claim 4, characterized in that: The adjusting portion (250) comprises a worm wheel (251) fixedly mounted on the upper end of the rotating disk (260) and a worm (252) mounted on one side of the worm wheel (251); the worm (252) is mounted on the inner wall of the inner cavity of the mounting shell (210) on the other side via a bearing; a driving rod (253) is mounted on one side of the worm (252); and the driving rod (253) is movably inserted into one side of the worm (252).

6. The loader engine crankshaft seal ring removal device according to claim 5, characterized in that: A connecting head (255) is provided at one end of the driving rod (253), and a connecting groove (254) matching the connecting head (255) is provided at one side of the worm (252). The connecting groove (254) and the connecting head (255) match in size and shape.

Images