A hydraulic pulley disassembly device

Abstract

The utility model discloses a hydraulic pulley disassembly device, which belongs to the field of mechanical assembly technology, and includes a fixed clamping sleeve, a screw, a base and a hydraulic jack; the fixed clamping sleeves are two, and the inner wall has a shape that matches the outer wall of the pulley, and the fixed clamping sleeves are connected through a connecting structure; the rear end of the fixed clamping sleeve is provided with a threaded hole, and a screw is threadedly connected with it; the threaded holes are multiple and evenly arranged; the base has a through hole, the screw passes through the through hole, and a nut is threadedly connected to the screw on the rear side of the through hole; the rear end of the hydraulic jack is fixedly installed on the base. Compared with the prior art, the utility model can easily realize the disassembly of the pulley and avoid the risk of deformation and damage of the hub.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical assembly, in particular to a hydraulic belt pulley disassembly device. Background Art

[0002] Pulleys are a common mechanical transmission device, belonging to the disc hub type parts, usually installed on the journal of mechanical equipment. It consists of a hub and a belt, and can transfer power from one shaft to another. Pulleys are widely used in various mechanical equipment in hot-rolled strip mills, mainly for long-distance power transmission. Pulleys in the field of hot-rolled strip are generally relatively large in size, and the manufacturing process is generally based on casting and forging. Generally, the larger size is made of cast iron material with good casting performance; the smaller size is generally made of forged steel material.

[0003] Pulley transmission can mitigate load impact and has the function of overload protection, which can not only avoid damage caused by impact during mechanical transmission, but also ensure the stability of mechanical transmission. However, during the continuous operation of mechanical transmission, damage to the hub and the connecting shaft is inevitable, so it is necessary to replace the hub and the bearings on the connecting shaft, or repair the connecting shaft, etc., which requires the hub and the connecting shaft to be separated. The commonly used disassembly method is to use tools such as copper rods and sledgehammers to knock and disassemble them with external force. During the disassembly process, it is very easy to damage the gear teeth on the hub or cause the gear teeth to deform.

[0004] Therefore, there is an urgent need for a hydraulic pulley disassembly device to reduce the risk of damage during the disassembly process. Utility Model Content

[0005] The technical task of the utility model is to provide a hydraulic pulley disassembly device to address the deficiencies of the above prior art, which can easily realize the disassembly of the pulley without being damaged by external forces.

[0006] The technical solution of the utility model to solve the technical problem is: a hydraulic pulley disassembly device, characterized in that: it includes a fixed clamping sleeve, a screw rod, a base and a hydraulic jack; the fixed clamping sleeves are two, the inner walls have a shape that matches the outer wall of the pulley, and the fixed clamping sleeves are connected through a connecting structure; the rear end of the fixed clamping sleeve is provided with a threaded hole, and a screw rod is threadedly connected with the screw rod; the threaded holes are multiple and evenly arranged; the base has a through hole, the screw rod passes through the through hole, and a nut is threadedly connected to the screw rod on the rear side of the through hole; the rear end of the hydraulic jack is fixedly installed on the base.

[0007] Furthermore, the above-mentioned connection structure is a connection bolt, and a connection hole is provided on the edge of the fixed clamping sleeve. After the two fixed clamping sleeves are assembled, the connection bolt is fixed through the connection hole.

[0008] Furthermore, the above-mentioned fixing clamping sleeve is semi-annular.

[0009] Furthermore, the connecting bolts and connecting holes are multiple and symmetrically arranged.

[0010] Furthermore, there are 4 threaded holes.

[0011] Compared with the prior art, the utility model has the following outstanding beneficial effects:

[0012] 1. The utility model locks the pulley through a semicircular fixed clamping sleeve connected to the base by a connecting rod on the disassembly device, and pushes the connecting shaft out of the pulley through the hydraulic jack on the base, thereby avoiding the problems of wheel hub deformation and damage caused by external force impact during the disassembly process;

[0013] 2. The utility model can easily realize the disassembly of the pulley, reduce the labor cost and operation risk, and effectively save the equipment maintenance cost;

[0014] 3. Simple structure, low cost and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the use state of the utility model.

[0017] Figure 3 It is an exploded stereogram of the utility model.

[0018] Figure 4 It is an exploded stereogram of the utility model in use state.

[0019] Explanation of the reference numerals: 1. fixing clamping sleeve, 2. screw rod, 3. base, 4. nut, 5. connecting bolt, 6. connecting hole, 7. threaded hole, 8. hydraulic jack, 9. connecting shaft, 10. pulley. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments of the specification. In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will appreciate, 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 descriptions are considered to be exemplary and non-restrictive in nature.

[0021] In the following embodiments, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model application can be understood according to the specific circumstances.

[0022] For better description, the direction toward the pulley is the front, and the opposite direction is the back, that is, Figure 1 The left side is the front, and the opposite side is the back. It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "end", "side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the utility model application 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 limiting the embodiments of the utility model application.

[0023] like Figures 1 to 4 As shown, the utility model is a hydraulic pulley disassembly device, which includes a fixed clamping sleeve 1, a screw rod 2, a base 3 and a hydraulic jack 8.

[0024] There are two fixed clamping sleeves 1, and the inner wall has a shape that matches the outer wall of the pulley 10. After the two fixed clamping sleeves 1 are assembled, the inner wall is engaged with the outer wall of the pulley 10 to clamp the pulley 10. The fixed clamping sleeves 1 are connected by a connecting structure. In this embodiment, the connecting structure is a connecting bolt 5, and the fixed clamping sleeve 1 is semi-annular, and a connecting hole 6 is provided on the edge. After the two fixed clamping sleeves 1 are assembled, the connecting bolt 5 is fixed through the connecting hole 6 to achieve the clamping of the pulley 10. There are multiple connecting bolts 5 and connecting holes 6, which are arranged symmetrically.

[0025] The rear end of the fixed clamping sleeve 1 is provided with a threaded hole 7, and a screw rod 2 is threadedly connected thereto. The threaded holes 7 are multiple and evenly arranged, and in this embodiment, there are 4. The base 3 has a through hole, and the screw rod 2 passes through the through hole. The screw rod 2 at the rear side of the through hole is threadedly connected to a nut 4, so that the distance between the base 3 and the fixed clamping sleeve 1 can be adjusted.

[0026] The rear end of the hydraulic jack 8 is fixedly mounted on the base 3 .

[0027] When in use, the fixed clamping sleeve 1 is engaged with the pulley 10, the two fixed clamping sleeves 1 are assembled and fixed by the connecting bolts 5, the pulley 10 is locked, the base 3 is connected to the screw rod 2, and the distance between the base 3 and the fixed clamping sleeve 1 is adjusted by the nut 4. The front end of the hydraulic jack 8 supports the connecting shaft 9, and the connecting shaft 9 is pushed out from the pulley 10 by the hydraulic jack 8 on the base, so that the pulley can be easily disassembled without being damaged by external forces.

[0028] The utility model can easily realize the disassembly of the pulley, avoids the problems of wheel hub deformation and damage caused by external force impact during the disassembly process of the pulley, and effectively saves equipment maintenance costs.

[0029] It should be noted that matters not described in detail in this embodiment are well-known technologies in the art.

[0030] The above description is only for the purpose of describing the present invention in detail for the specific implementation purpose of the present invention. For those skilled in the art, various obvious changes made to the present invention without departing from the spirit and scope of the present invention are within the protection scope of the present invention.

Claims

1. A hydraulic pulley disassembly device, characterized in that: It includes a fixed clamping sleeve, a screw, a base and a hydraulic jack; there are two fixed clamping sleeves, the inner wall of which has a shape that matches the outer wall of the pulley, and the fixed clamping sleeves are connected through a connecting structure; the rear end of the fixed clamping sleeve is provided with a threaded hole, and a screw is threadedly connected with it; there are multiple threaded holes, which are evenly arranged; the base has a through hole, the screw passes through the through hole, and a nut is threadedly connected to the screw on the rear side of the through hole; the rear end of the hydraulic jack is fixedly installed on the base.

2. The hydraulic pulley disassembly device according to claim 1, characterized in that: The connection structure is a connection bolt, and a connection hole is provided at the edge of the fixed clamping sleeve. After the two fixed clamping sleeves are assembled, the connection bolt is fixed through the connection hole.

3. The hydraulic pulley disassembly device according to claim 1, characterized in that: The fixing clamping sleeve is semi-annular.

4. The hydraulic pulley disassembly device according to claim 2, characterized in that: There are multiple connecting bolts and connecting holes, which are symmetrically arranged.

5. The hydraulic pulley disassembly device according to claim 1, characterized in that: There are four threaded holes.

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