liner locking mechanism

Abstract

This utility model relates to the field of crusher technology, specifically to a liner locking mechanism, including a moving jaw body and a moving jaw plate on a crusher. Two slide rails are welded to the left and right sides of the moving jaw body, or two slide rails are directly machined onto the moving jaw body. The two sides of the moving jaw plate slide down along the two sets of slide rails, and the lower end contacts a lower wedge block fixed at the bottom of the moving jaw body. A detachable cover plate is located at the top of the moving jaw body, blocking the high end of the moving jaw plate. The position of the moving jaw plate is fixed by the cooperation of the cover plate, the lower wedge block, and the slide rails. The structure is simple, easy to operate, and highly safe.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, specifically to a liner locking mechanism. Background Technology

[0002] The working process of a jaw crusher involves a drive motor rotating a pulley, which in turn drives an eccentric shaft to rotate. This causes the moving jaw to oscillate periodically, resulting in periodic changes in the crushing chamber and the compression of the material within it. The crushing action is achieved by the moving jaw liner repeatedly moving closer to and further away from the fixed jaw liner. During this repeated compression process, both the fixed and moving jaw liners experience varying degrees of wear. Typically, both the moving and fixed jaw liners need to be replaced approximately every three months.

[0003] Traditionally, the fixed jaw plate and moving jaw plate were secured to the fixed jaw body and moving jaw body respectively using T-bolts, disc springs, and wedges. Each time the moving jaw liner was replaced, numerous lifting tools had to be prepared in advance. Replacement required a full day of downtime for the main machine, and maintenance workers also needed to enter the crushing chamber to remove the T-bolts and wedges. This not only consumed a significant amount of manpower and was inconvenient and unsafe, but also increased the cost of operating the main machine for the customer.

[0004] The current state of the closest existing technology:

[0005] Patent CN202022003368.7, entitled "A Jaw Crusher with an Easily Replaceable Moving Jaw Plate," is the closest to the prior art, disclosing a method for quickly replacing the moving jaw plate of a crusher. The above solution has the following drawbacks:

[0006] 1) This solution adds a mounting plate between the moving jaw plate and the moving jaw body for fixing and locking; this increases the cost of the main unit and reduces the efficiency of replacement.

[0007] 2) The proposed solution adds a spring structure to lock the moving jaw plate and the mounting plate. When the crusher is working, a large amount of dust will accumulate inside the spring structure, causing it to fail and making it impossible to remove the moving jaw plate. This is not conducive to replacing the moving jaw plate. Utility Model Content

[0008] (I) Technical Issues

[0009] The present invention aims to at least solve the problem of achieving efficient replacement of the moving jaw plate by adopting a simpler structure in the prior art.

[0010] (II) Technical Content

[0011] This solution provides a liner locking mechanism, achieved through the following specific technical means: including the moving jaw body and moving jaw plate on the crusher, wherein:

[0012] There is a slide rail on each side of the movable jaw body;

[0013] The two sets of slide rails on both sides of the movable jaw plate slide, and the lower wedge block fixed at the bottom end of the passive jaw body component at the bottom end of the movable jaw plate blocks and limits it.

[0014] A cover plate is detachably provided at the top of the moving jaw body to block and limit the top of the moving jaw plate.

[0015] Preferred technical solution 1: The cover plate is fixed to the top of the two sets of slide rails by screws.

[0016] Preferred technical solution 2: The cover plate is pressed onto the top side end face of the moving jaw plate by passing a screw through it at the top of the moving jaw plate.

[0017] Preferred technical solution 3: The moving jaw plate is in close contact with the moving jaw body.

[0018] (III) Technical Effects

[0019] The above structure gives this solution the following advantages:

[0020] 1. The replacement structure of the moving jaw plate of the crusher is simple and easy to operate, which improves the replacement efficiency and reduces maintenance costs;

[0021] 2. The replacement of the moving jaw plate of the crusher does not require maintenance personnel to enter the crushing chamber to perform the replacement operation, which improves the reliability, safety and convenience of the moving jaw plate replacement operation. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a longitudinal sectional view of the plan;

[0024] Figure 2 This is a side view of the design.

[0025] Figure 3 This is a cross-sectional view of the present design.

[0026] Among them, 1. Screw, 2. Tightening bolt, 3. Cover plate, 4. Slide rail, 5. Moving jaw plate, 6. Moving jaw body, 7. Lower wedge block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-3 The liner locking mechanism includes the moving jaw body 6 and the moving jaw plate 5 on the crusher. The above is the existing structure of the crusher, wherein:

[0029] Two slide rails 4 are welded to the left and right sides of the moving jaw body 6, or two slide rails 4 are directly machined onto the moving jaw body 6; the two sides of the moving jaw plate 5 extend into the grooves of the two sets of slide rails 4 and slide from top to bottom along the two sets of slide rails 4 (the slide rails 4 are provided so that the moving jaw plate 5 can be installed smoothly). The inner wall of the moving jaw plate 5 contacts the outer wall of the moving jaw body 6, and the lower end face of the moving jaw plate 5 contacts the lower wedge block 7 fixed at the bottom of the moving jaw body 6. The lower wedge block 7 supports and fixes the moving jaw plate 5 and blocks and limits the lower end position of the moving jaw plate 5. The lower wedge block 7 can be integrally formed with the moving jaw body 6, or it can be detachably assembled with the moving jaw body 6.

[0030] A cover plate 3 is detachably mounted on the top of the movable jaw body 6. The cover plate 3 blocks the high end of the movable jaw plate 5. The position of the movable jaw plate 5 is fixed by the cooperation of the cover plate 3, the lower wedge block 7 and the slide rail 4.

[0031] When the moving jaw plate 5 needs to be replaced, the maintenance worker does not need to enter the crushing chamber to replace the moving jaw plate. The maintenance worker can directly remove the cover plate 3 from the top of the crushing chamber with a tool and then pull out the moving jaw plate 5. The pulling action can be assisted by tools.

[0032] In one set of embodiments

[0033] Please see Figure 1 The cover plate 3 is fixed to the top of the two sets of slide rails 4 by screws 1. Specifically, the screws 1 pass through the through hole on the cover plate 3 and are screwed into the threaded hole at the top of the slide rail 4 to fix the cover plate 3 (the cover plate 3 and screws 1 are used to fix the moving jaw plate 5 to improve the replacement efficiency of the moving jaw plate 5).

[0034] In one set of embodiments

[0035] Please see Figure 1 Meanwhile, a threaded hole is opened on the cover plate 3 corresponding to the top of the movable jaw plate 5, or an internal threaded sleeve is fixed through the hole opened on the cover plate 3 corresponding to the top of the movable jaw plate 5. After the tightening bolt 2 passes through the threaded hole or the internal threaded sleeve, it is pressed onto the top side end face of the movable jaw plate 5 to press and fix the movable jaw plate 5.

[0036] The fixed moving jaw plate 5 adopts a cover plate 3 and bolt structure, eliminating the spring locking structure in the existing solution and improving the reliability and safety of the main equipment.

[0037] In one set of embodiments

[0038] Please see Figure 1 If there are two moving jaw plates 5, after the first one is installed in place, the second moving jaw plate 5 is placed on top of the first moving jaw plate 5, and then the cover plate 3 is installed.

[0039] During use, this solution requires daily maintenance of each component according to the established maintenance plan to ensure its working condition. After the crusher has been working for a period of time, if the moving jaw plate 5 shows significant wear and needs to be replaced, remove the cover plate 3 from the two slide rails 4, take the moving jaw plate 5 out of the slide rails 4, and replace it with a new moving jaw plate 5.

[0040] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0041] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liner locking mechanism comprising a moving jaw body member (6) and a moving jaw plate (5) on a crusher, characterized by: There are two slide rails (4) on the left and right sides of the moving jaw body (6); The two sides of the moving jaw plate (5) slide in from top to bottom along the two sets of slide rails (4), and the lower end contacts the lower wedge block (7) fixed at the bottom end of the moving jaw body (6); A cover plate (3) is detachably mounted on the top of the moving jaw body (6), and the cover plate (3) is positioned at the high end of the moving jaw plate (5).

2. The liner locking mechanism of claim 1, wherein: The cover plate (3) is fixed to the top of the two sets of slide rails (4) by screws (1).

3. The liner locking mechanism of claim 2, wherein: Meanwhile, there is a threaded hole on the cover plate (3) corresponding to the top of the moving jaw plate (5), and a tightening bolt (2) is pressed through the threaded hole onto the top side end face of the moving jaw plate (5).

4. The liner locking mechanism of claim 1, wherein: The movable jaw plate (5) is in contact with the movable jaw body (6).

5. The liner locking mechanism of claim 1, wherein: The lower wedge block (7) and the moving jaw body (6) are detachably installed.

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