An eccentric locking type housing for a crusher
The eccentric locking shell structure solves the problem of loose fastening between the crusher drive mechanism and the shell, achieving a tight fit between the drive mechanism and the damping block under high-frequency vibration, reducing noise and the risk of loosening, and improving the operational reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU GUCHUAN MASCH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-19
AI Technical Summary
The existing crusher's drive mechanism and casing are fastened in a cumbersome and ineffective way, which causes them to loosen under high-frequency vibration and weakens the noise reduction effect of the silent casing.
The device adopts an eccentric locking housing structure. Through the cooperation of the locking cover and the eccentric locking rod, the drive mechanism and the shock absorber are tightly fitted. The rotation of the eccentric locking rod squeezes the connecting block, making the shock absorber and the drive mechanism in close contact. The device is then fixed with bolts to form a stable mechanical locking structure.
The increased tightness between the drive mechanism and the housing reduces loosening and noise caused by high-frequency vibration, thereby improving the operational stability and noise reduction effect of the equipment.
Smart Images

Figure CN224378997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fastening technology for the silent body and shell of an excavator breaker hammer, and in particular to an eccentric locking shell for a breaker. Background Technology
[0002] In the field of crushing equipment, the outer shell is the core load-bearing structure, and its performance is directly related to the stability and durability of the whole machine operation. When crushing hard materials such as ore and construction waste, the crusher will generate severe vibration and impact and high-frequency load. The internal drive mechanism needs to continuously output power under high-intensity working conditions. Therefore, it is necessary to provide stable assembly space for the internal drive mechanism, shock absorption components, etc., to ensure the reliability of equipment operation.
[0003] Currently, the drive mechanism and the housing are fastened with clamp bolts and pads. This method is not only cumbersome to assemble, but also cannot achieve effective fit and fastening between the body and the shock absorber. When the breaker is in operation, the insufficient fixing strength will cause the body to shake inside the silent housing, directly weakening the noise reduction effect of the silent housing and preventing it from playing its due functional value.
[0004] To address the above problems, an eccentric locking housing for crushers is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an eccentric locking housing for a crusher, which aims to improve the problem that the drive mechanism cannot be tightly fitted with the shock absorber in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An eccentric locking housing for a crusher includes a housing, a drive mechanism installed inside the housing, a crushing cone installed inside the drive mechanism, and a clamping assembly provided on the top of the drive mechanism.
[0008] The clamping assembly includes two locking covers, which are respectively installed on the front and rear sides of the housing. An eccentric locking rod is installed between the two locking covers. A connecting block is provided at the bottom of the eccentric locking rod. Two guide rods are fixedly connected to the bottom of the connecting block. A pressure block is provided at the bottom of the connecting block. A shock-absorbing block is fixedly connected to the side of the pressure block away from the connecting block. Multiple bolts are threaded on the inner side of the locking cover, and a limit plate is threaded on the outer side of the multiple bolts.
[0009] As a further description of the above technical solution:
[0010] A mounting plate is fixedly connected to the outer side of the outer casing;
[0011] As a further description of the above technical solution:
[0012] The eccentric locking rod abuts against the connecting block, and the shock-absorbing block abuts against the driving mechanism;
[0013] As a further description of the above technical solution:
[0014] The outer side of the eccentric locking rod is rotatably connected to the inside of the limiting plate, and the connecting block is slidably connected to the outer side of the limiting plate;
[0015] As a further description of the above technical solution:
[0016] The outer side of the eccentric locking rod is rotatably connected to the inside of the housing;
[0017] As a further description of the above technical solution:
[0018] The bolt is threaded on the outside and connected to the inside of the housing.
[0019] As a further description of the above technical solution:
[0020] The outer side of the guide rod is slidably connected to the inside of the pressure block;
[0021] As a further description of the above technical solution:
[0022] A washer is fixedly connected to the side of the bolt near the locking cover, and the washer abuts against the locking cover.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, the locking cover and the eccentric locking rod cooperate with each other to drive the eccentric locking rod to rotate. The eccentric structure of the locking cover compresses the connecting block, causing the connecting block to produce linear displacement and push the pressure block and the shock absorber block to move. This enhances the tightness of the fit between the shock absorber block and the drive mechanism. Finally, the locking cover is fastened to the equipment shell with bolts to form a stable mechanical locking structure, which effectively resists the risk of loosening caused by the high-frequency vibration of the crusher, thereby reducing the noise generated by the drive mechanism shaking inside the shell. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of an eccentric locking type outer shell for a crusher proposed in this utility model;
[0026] Figure 2 This is a three-dimensional schematic diagram of a drive mechanism for an eccentric locking housing of a crusher proposed in this utility model.
[0027] Figure 3This is a structural cross-sectional diagram of a drive mechanism for an eccentric locking housing of a crusher proposed in this utility model.
[0028] Figure 4 This is a schematic diagram of the structure of a locking cover for an eccentric locking type shell of a crusher proposed in this utility model;
[0029] Figure 5 This is a three-dimensional schematic diagram of an eccentric locking rod for an eccentric locking type housing for a crusher, as proposed in this utility model.
[0030] Legend:
[0031] 1. Outer shell; 2. Crushing cone; 3. Mounting plate; 4. Drive mechanism; 5. Locking cover; 6. Eccentric locking rod; 7. Connecting block; 8. Pressure block; 9. Shock absorber block; 10. Guide rod; 11. Gasket; 12. Bolt; 13. Limiting plate. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figures 1-5 The present invention provides an embodiment of an eccentric locking housing for a crusher, comprising a housing 1, a drive mechanism 4 installed inside the housing 1, a crushing cone 2 installed inside the drive mechanism 4, and a clamping assembly provided on the top of the drive mechanism 4. The housing 1 is used to protect the drive mechanism 4 inside it, the drive mechanism 4 is used to drive the crushing cone 2 to work, and the clamping assembly is used to tightly fit the drive mechanism 4 with the housing 1, thereby reducing the generation of shaking and thus reducing noise.
[0034] The clamping assembly includes two locking covers 5, which are respectively installed on the front and rear sides of the outer shell 1. An eccentric locking rod 6 is installed between the two locking covers 5. A connecting block 7 is provided at the bottom of the eccentric locking rod 6. Two guide rods 10 are fixedly connected to the bottom of the connecting block 7. A pressure block 8 is provided at the bottom of the connecting block 7. A shock-absorbing block 9 is fixedly connected to the side of the pressure block 8 away from the connecting block 7. Multiple bolts 12 are threadedly connected to the inner side of the locking cover 5. A limit plate 13 is threadedly connected to the outer side of the multiple bolts 12. The hexagonal structure on the inner side of the locking cover 5 and the outer side of the eccentric locking rod 6 cooperate with each other. The locking cover 5 can drive the eccentric locking rod 6 to rotate. After the eccentric locking rod 6 rotates, its eccentric part will contact the connecting block 7, so that the connecting block 7 slides towards the pressure block 8, thereby squeezing the pressure block 8 and the shock-absorbing block 9, so that the shock-absorbing block 9 fits tightly with the drive mechanism 4. Finally, the locking cover 5 is fixed to the outer side of the outer shell 1 by the bolts 12, thereby fixing the eccentric locking rod 6 and keeping it stable inside the outer shell 1.
[0035] Reference Figures 1-5 An mounting plate 3 is fixedly connected to the outer side of the outer casing 1, which can fix the outer casing 1 to the outside of the machine. The eccentric locking rod 6 abuts against the connecting block 7, and the shock absorber 9 abuts against the drive mechanism 4. The rotation of the eccentric locking rod 6 drives the connecting block 7 to move, and then the connecting block 7 indirectly pushes the shock absorber 9 to move, so that the shock absorber 9 and the drive mechanism 4 are tightly fitted. The outer side of the eccentric locking rod 6 is rotatably connected to the inside of the limiting plate 13. The limiting plate 13 is used to support the eccentric locking rod 6, so that the eccentric locking rod 6 rotates stably inside the outer casing 1. The connecting block 7 is slidably connected to the outside of the limiting plate 13. On the side, the limiting plate 13 is used to limit the sliding direction of the connecting block 7, so that it can only slide in the vertical direction. The outer side of the eccentric locking rod 6 is rotatably connected to the inside of the outer shell 1. The outer side of the bolt 12 is threadedly connected to the inside of the outer shell 1. The outer side of the guide rod 10 is slidably connected to the inside of the pressure block 8. The guide rod 10 is used to guide the sliding direction of the pressure block 8, so that it moves along the direction of the guide rod 10. A washer 11 is fixedly connected to the side of the bolt 12 near the locking cover 5. The washer 11 abuts against the locking cover 5. By setting the washer 11, the anti-loosening effect can be enhanced, and the phenomenon of bolt 12 loosening caused by high-frequency vibration of the crusher can be reduced.
[0036] Working principle: The locking cover 5 and the eccentric locking rod 6 are mutually adapted to each other, so that the locking cover 5 can drive the eccentric locking rod 6 to rotate. This causes the eccentric part of the eccentric locking rod 6 to squeeze the connecting block 7 by rotating, thereby causing the connecting block 7 to move. Then, it squeezes the pressure block 8 and the shock absorber 9, making the contact between the shock absorber 9 and the drive mechanism 4 tighter. Finally, the locking cover 5 is fixed to the outside of the outer shell 1 by bolts 12, so as to ensure that the clamping state remains stable and avoid clamping failure caused by frequent operation of the crusher.
[0037] Finally, it should be noted that the above description is only 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 in detail 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. An eccentric locking type housing for a crusher, comprising a housing (1), characterized in that: The outer shell (1) is equipped with a drive mechanism (4), a crushing cone (2) is installed inside the drive mechanism (4), and a clamping component is provided on the top of the drive mechanism (4). The clamping assembly includes two locking covers (5), which are respectively installed on the front and rear sides of the outer shell (1). An eccentric locking rod (6) is installed between the two locking covers (5). A connecting block (7) is provided at the bottom of the eccentric locking rod (6). Two guide rods (10) are fixedly connected to the bottom of the connecting block (7). A pressure block (8) is provided at the bottom of the connecting block (7). A shock-absorbing block (9) is fixedly connected to the side of the pressure block (8) away from the connecting block (7). Multiple bolts (12) are threadedly connected to the inner side of the locking cover (5). A limit plate (13) is threadedly connected to the outer side of the multiple bolts (12).
2. An eccentric locking housing for a crusher as claimed in claim 1, characterized in that: An mounting plate (3) is fixedly connected to the outer side of the outer shell (1).
3. An eccentric locking housing for a crusher as claimed in claim 1, characterized in that: The eccentric locking rod (6) abuts against the connecting block (7), and the shock-absorbing block (9) abuts against the driving mechanism (4).
4. An eccentric locking housing for a crusher as claimed in claim 1, characterized in that: The eccentric locking rod (6) is rotatably connected to the inside of the limiting plate (13) on the outside, and the connecting block (7) is slidably connected to the outside of the limiting plate (13).
5. An eccentric locking housing for a crusher as claimed in claim 1, characterized in that: The eccentric locking rod (6) is rotatably connected to the outside of the housing (1).
6. An eccentric locking housing for a crusher as claimed in claim 1, characterized in that: The bolt (12) is threaded on the outside and connected to the inside of the outer casing (1).
7. An eccentric locking housing for a crusher as claimed in claim 1, characterized in that: The guide rod (10) is slidably connected to the inside of the pressure block (8) on the outside.
8. An eccentric locking housing for a crusher as claimed in claim 7, characterized in that: A washer (11) is fixedly connected to the side of the bolt (12) near the locking cover (5), and the washer (11) abuts against the locking cover (5).