Auxiliary device for quickly replacing speed reducer

Abstract

The utility model discloses an auxiliary device for quickly replacing a speed reducer, which is used for separating the speed reducer from a tray above the speed reducer and comprises a jacking mechanism which is arranged below the tray and is used for driving the tray to lift so as to disassemble the speed reducer, a limiting mechanism used for keeping connection with the jacking mechanism is arranged at the position, matched with the driving end of the jacking mechanism, of the tray. The jacking mechanism comprises a supporting frame, a jack and an extension rod connected with the jacking end of the jack, the jack is fixed to the supporting frame, and when the speed reducer is disassembled, the tray is jacked up through cooperation of the extension rod and the limiting mechanism, so that the tray is separated from the speed reducer; the tray and parts above the tray are jacked up through the jacking mechanism, so that the tray is separated from the speed reducer, the positions of the tray before and after moving are kept uniform, the speed reducer can be quickly disassembled and assembled, the equipment difficulty is reduced, and the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball mills, in particular to an auxiliary device for quickly replacing a speed reducer. Background Art

[0002] The EM medium-speed ball mill can be used for grinding coal, petroleum coke, gypsum, limestone, bentonite, clay, phosphate and other minerals. When the mill is running, the raw materials enter the mill from the feeding pipe at the upper center. The raw materials after grinding are dried by the hot air entering from the air nozzle ring and are transported to the separator. The unqualified large particles fall back to the grinding area for re-grinding until they reach the appropriate particle size. The qualified pulverized coal is transported to the powder collector through the separator.

[0003] When the mill is running, the motor drives the speed reducer to work through the coupling. Due to the long-term operation of the mill, the internal components of the speed reducer are severely worn, resulting in the sun gear or the planetary carrier falling off or other problems. When the speed reducer needs to be removed outside the mill or returned to the factory for repair, it is necessary to separate the speed reducer from the components above the tray. The existing disassembly methods mostly remove the components above the tray and then lift and disassemble the speed reducer, which increases the disassembly process time and is not convenient for the assembly of the speed reducer after repair. Summary of the Utility Model

[0004] Technical Objective: Aiming at the deficiencies in the disassembly of the speed reducer of the existing ball mill, the utility model discloses an auxiliary device for quickly replacing the speed reducer.

[0005] Technical Solution: To achieve the above technical objective, the utility model adopts the following technical solution:

[0006] An auxiliary device for quickly replacing a speed reducer is used to separate the speed reducer from the upper tray. The auxiliary device includes a jacking mechanism arranged below the tray for driving the tray to lift and disassemble the speed reducer. The tray is provided with a limiting mechanism at the position where it cooperates with the driving end of the jacking mechanism to maintain the connection with the jacking mechanism. The jacking mechanism includes a support frame, a jack and an extension rod connected to the jacking end of the jack. The jack is fixed on the support frame. When disassembling the speed reducer, the extension rod cooperates with the limiting mechanism to lift the tray and separate the tray from the speed reducer.

[0007] Preferably, the limiting mechanism of the utility model includes a reserved opening formed on the tray. The reserved opening is on the same axis as the extension rod. When disassembling the speed reducer, the end of the extension rod moves upward under the drive of the jack and enters the reserved opening.

[0008] Preferably, a detachable sealing cover plate is arranged at the reserved opening of the utility model to block the reserved opening through the sealing cover plate.

[0009] Preferably, the number of the jacking mechanisms of the utility model is 4 groups, which are symmetrically arranged under the tray along the diagonal direction of the tray.

[0010] Beneficial effects: An auxiliary device for quickly replacing a speed reducer disclosed by the utility model has the following beneficial effects:

[0011] 1. The utility model jacks up the tray and the components above the tray through the jacking mechanism, realizes the separation of the tray and the speed reducer, keeps the position of the tray unified before and after moving, can quickly disassemble and assemble the speed reducer, reduces the equipment difficulty, and thus improves the efficiency.

[0012] 2. The utility model is provided with a limiting mechanism on the tray, which can accurately limit the position of the tray, avoid skew during the jacking separation process, and ensure the stability of the lifting process and the operation safety.

[0013] 3. The limiting mechanism of the utility model uses the reserved opening and the end part of the extension rod to cooperate for limiting, with a simple structure, convenient operation and good reliability. Description of the drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art.

[0015] Figure 1 It is the overall structure diagram of the present utility model;

[0016] Among them, 1 - speed reducer, 2 - tray, 3 - support frame, 4 - jack, 5 - extension rod, 6 - reserved opening. Specific embodiments

[0017] Now, reference will be made in detail to the embodiments of the present disclosure, one or more examples of which are set forth below. Each embodiment and example is provided by way of explanation of the apparatus, composition, and materials of the present disclosure, and not by way of limitation. On the contrary, the following description provides a convenient illustration for implementing the exemplary embodiments of the present disclosure. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the teachings of the present disclosure without departing from the scope or spirit of the present disclosure. For example, features shown or described as part of one embodiment can be combined with another embodiment to yield yet another embodiment. It is intended that the present disclosure cover such modifications and variations that fall within the scope of the appended claims and their equivalents. Other objects, features, and aspects of the present disclosure are disclosed or are apparent from the following detailed description. It is to be understood by those of ordinary skill in the art that this discussion is only a description of exemplary embodiments and is not intended to limit the broader aspects of the present disclosure.

[0018] Such as Figure 1As shown in the figure, the utility model relates to an auxiliary device for quickly replacing a speed reducer, which is used to separate the speed reducer 1 from the tray 2 above. The auxiliary device includes a jacking mechanism arranged below the tray 2 for driving the tray 2 to lift and disassemble the speed reducer. The tray 2 is provided with a limiting mechanism at the position where it cooperates with the driving end of the jacking mechanism to maintain the connection with the jacking mechanism. The jacking mechanism includes a support frame 3, a jack 4, and an extension rod 5 connected to the jacking end of the jack 4. The jack 4 is fixed on the support frame 3. When disassembling the speed reducer 1, the tray 2 is lifted by the cooperation of the extension rod 5 and the limiting mechanism, so that the tray 2 is separated from the speed reducer 1. Then, the speed reducer 1 can be removed outside the ball mill for maintenance. At the same time, during this process, the position of the tray in the vertical direction remains unchanged, which is convenient for the subsequent centering of the speed reducer installation, reduces the assembly difficulty, and shortens the maintenance time.

[0019] The limiting mechanism of the utility model includes a reserved opening 6 opened on the tray 2. The reserved opening 6 is on the same axis as the extension rod 5. The reserved opening 6 can specifically adopt a round hole structure with a diameter larger than that of the extension rod 5 to reduce the docking difficulty. When disassembling the speed reducer 1, the end of the extension rod 5 moves upward under the drive of the jack and enters the reserved opening 6. A detachable sealing cover plate is arranged at the reserved opening 6 of the utility model to block the reserved opening through the sealing cover plate. When the speed reducer 1 needs to be disassembled, the connection and positioning between the tray 2 and the extension rod 5 are quickly completed through the reserved opening 6, and the offset generated when the tray 2 is separated from the speed reducer 1 is avoided. Specifically, the number of the jacking mechanisms of the utility model is 4 groups, which are symmetrically arranged below the tray 2 along the diagonal direction of the tray. The jacks 4 of the four groups of jacking mechanisms act synchronously to drive the tray 2 to move smoothly.

[0020] When the utility model is in use, the support frame 3 is fixed on the ground. The support frame 3 can use a steel pipe with a circular plate welded at the bottom surface, and the circular plate is used to form a stable support at the bottom. The jack 4 is fixed at the upper end of the steel pipe. The extension rod enters the ball mill to jack up the tray 2, so that the tray 2 and the components on the tray move upward together to achieve separation from the speed reducer 1, so that the speed reducer 1 can be taken out for maintenance.

Claims

1. An auxiliary device for quickly replacing a speed reducer, which is used to realize the separation of the speed reducer (1) from the upper tray (2), and is characterized in that, It includes a jacking mechanism arranged below the tray (2) for driving the tray (2) to lift and lower for the disassembly of the speed reducer. The tray (2) is provided with a limiting mechanism at the position where it cooperates with the driving end of the jacking mechanism to maintain connection with the jacking mechanism; the jacking mechanism includes a support frame (3), a jack (4), and an extension rod (5) connected to the jacking end of the jack (4). The jack (4) is fixed on the support frame (3). When disassembling the speed reducer (1), the tray (2) is jacked up through the cooperation of the extension rod (5) and the limiting mechanism, so that the tray (2) is separated from the speed reducer (1).

2. The auxiliary device for quickly replacing a speed reducer according to claim 1, characterized in that, The limiting mechanism includes a reserved opening (6) opened on the tray (2). The reserved opening (6) is on the same axis as the extension rod (5). When disassembling the speed reducer (1), the end of the extension rod (5) moves upward under the drive of the jack and enters the reserved opening (6).

3. The auxiliary device for quickly replacing a speed reducer according to claim 2, characterized in that A detachable sealing cover plate is arranged at the reserved opening (6) to block the reserved opening through the sealing cover plate.

4. An auxiliary device for quickly replacing a speed reducer according to claim 1, characterized in that, The number of the jacking mechanisms is 4 groups, which are symmetrically arranged below the tray along the diagonal direction of the tray (2).

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