Coal crushing device

Abstract

The utility model discloses a coal crushing device, which belongs to the technical field of coal processing and comprises a crusher body, a vertical sleeve is fixed at the top end of the crusher body, a receiving hopper is vertically and slidably mounted on the outer side of the vertical sleeve, and hydraulic cylinders for controlling the receiving hopper to ascend and descend are arranged on two sides of the top of the crusher body. And a buffer mechanism is arranged between the output end of the hydraulic cylinder and the bottom of the receiving hopper. The vertical sleeve is arranged at the top end of the crusher body and is in vertical sliding connection with the material receiving hopper, the material receiving hopper can be controlled to ascend by starting the hydraulic cylinder, so that the material receiving height can be adjusted, a traditional overall lifting mode is replaced, adjustment and use are more convenient, and the crushing efficiency is improved. Through a buffering mechanism composed of the sliding sleeves, the fixing blocks, the springs, the dampers and the sliding rods, buffering protection can be carried out during blanking or when the bucket collides with the hopper, the impact force of the hopper is reduced, the hopper is effectively protected, and the service life of the receiving hopper is prolonged.

Description

Technical Field

[0001] This utility model relates to a crushing device, and more particularly to a coal crushing device, belonging to the field of coal processing technology. Background Technology

[0002] Coal crushing is a crucial step in coal processing. Its main purpose is to break coal from large lumps into suitable particle sizes to meet the requirements of subsequent processing and utilization. During coal washing, in order to better separate coal according to its density and other characteristics, the raw coal needs to be crushed to a certain particle size range. Generally, most coal is required to be crushed to below 50mm. For processes such as coal gasification and liquefaction, finer coal particle sizes (such as less than 6mm) are beneficial to the chemical reaction and improve conversion efficiency.

[0003] In the prior art, such as the utility model application with application number 202322263850.8, a coal crushing device is disclosed. In order to solve the problems that the existing coal crushing devices are large in size, inconvenient to adjust, cannot adapt well to different environments and processing workshops, and have poor mobility, which brings inconvenience to coal production, the height of the crushing barrel can be adjusted by extending and retracting the telescopic rod, thereby meeting the usage requirements of different heights and facilitating application in different production environments and workshops. At the same time, the rolling of the rollers can drive the device to move, thereby improving the flexibility of the device, reducing the physical labor of operators, and bringing convenience to use.

[0004] The above-mentioned applications still have shortcomings:

[0005] Due to the large size and weight of the crusher, it is inconvenient to control the overall lifting of the crusher. In addition, in some large coal yards, loaders are used for feeding. The impact force when the material falls is large, and the bucket is prone to bumping into the side of the receiving bucket, causing damage to the receiving bucket and affecting its service life.

[0006] Therefore, a coal crushing device was designed to optimize the above-mentioned problems. Utility Model Content

[0007] The main objective of this invention is to provide a coal crushing device to solve the problems mentioned in the background art.

[0008] The objective of this utility model can be achieved by adopting the following technical solution:

[0009] A coal crushing device includes a crusher body, a vertical sleeve fixed to the top of the crusher body, a receiving hopper vertically slidably installed on the outer side of the vertical sleeve, hydraulic cylinders for controlling the lifting and lowering of the receiving hopper are provided on both sides of the top of the crusher body, a buffer mechanism is provided between the output end of the hydraulic cylinder and the bottom of the receiving hopper, and an expansion mechanism is provided on the outer side of the top of the receiving hopper.

[0010] Preferably, the inner side of the top of the vertical sleeve is provided with a bevel, and the outer side of the vertical sleeve is in close contact with the inner side of the receiving hopper.

[0011] Preferably, the buffer mechanism includes a sliding sleeve, a fixed block, a spring, and a damper. The sliding sleeve is fitted on the outer side of the bottom end of the receiving hopper. Fixed blocks are fixed on both sides of the sliding sleeve. The output end of the hydraulic cylinder is fixedly connected to the bottom of the fixed block. A spring is provided between the fixed block and the top side of the receiving hopper, and a damper is provided between the fixed block and the bottom side of the receiving hopper.

[0012] Preferably, a sliding rod is vertically slidably mounted on the fixed block, and the top end of the sliding rod is fixedly connected to the receiving hopper.

[0013] Preferably, both sides of the receiving hopper are provided with protrusions, and the bottom of the protrusions is horizontal and connected to the top of the spring and the damper respectively.

[0014] Preferably, the expansion mechanism includes a surrounding panel and a positioning component. The surrounding panels are respectively hinged to the outside of the top of the receiving hopper, and a positioning component is provided between adjacent surrounding panels.

[0015] Preferably, the positioning component includes a sleeve, a wire rope, and a rod. The sleeve is fixed to one end of the outer side of the enclosure, the wire rope is installed at the other end of the outer side of the enclosure, and each wire rope is equipped with a rod that plugs into the sleeve.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model features a vertical sleeve installed at the top of the crusher body, with the vertical sleeve and the receiving hopper vertically slidingly connected. The receiving hopper can be raised by starting the hydraulic cylinder to adjust the receiving height, replacing the traditional overall lifting method and making adjustment and use more convenient.

[0018] 2. This utility model uses a buffer mechanism composed of a sliding sleeve, a fixed block, a spring, a damper, and a sliding rod to buffer and protect the material when it is falling or when the bucket collides with the hopper, reducing the impact force on the hopper, effectively protecting the hopper and improving its service life.

[0019] 3. This utility model has an expansion mechanism consisting of a surrounding plate, a sleeve, a wire rope, and a rod at the top of the receiving hopper. The volume of the receiving hopper can be adjusted according to the size of the bucket, effectively preventing each piece from falling out, and making it more practical. Attached Figure Description

[0020] Figure 1 This is a front sectional view of the present invention;

[0021] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a diagram showing the expanded capacity of the receiving hopper of this utility model.

[0023] Figure 4 This is a diagram showing the initial state of the receiving hopper of this utility model.

[0024] In the picture: 1. Crusher body;

[0025] 2. Vertical sleeve;

[0026] 3. Receiving hopper;

[0027] 4. Hydraulic cylinder;

[0028] 5. Buffer mechanism; 501. Sliding sleeve; 502. Fixing block; 503. Spring; 504. Damper; 505. Sliding rod;

[0029] 6. Expansion mechanism; 601. Enclosure panel; 602. Insert sleeve; 603. Wire rope; 604. Insert rod. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0031] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Example 1

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a coal crushing device, including a crusher body 1, a vertical sleeve 2 fixed at the top of the crusher body 1, a receiving hopper 3 vertically slidably installed on the outside of the vertical sleeve 2, hydraulic cylinders 4 for controlling the lifting and lowering of the receiving hopper 3 are provided on both sides of the top of the crusher body 1, a buffer mechanism 5 is provided between the output end of the hydraulic cylinder 4 and the bottom of the receiving hopper 3, and an expansion mechanism 6 is provided on the outside of the top of the receiving hopper 3.

[0037] When using a loader for feeding, if the capacity of the loader bucket is greater than that of the receiving hopper 3, the expansion mechanism 6 can be used to increase the capacity of the top of the receiving hopper 3 to prevent material from falling. During the feeding process, there is a certain drop between the material and the receiving hopper 3. When the coal block impacts the top of the receiving hopper 3, the buffer mechanism 5 is used for buffer protection. If the bucket causes pressure on the receiving hopper 3 when tilting, the buffer mechanism 5 can also be used to reduce the pressure caused by the receiving hopper 3. In addition, according to the usage requirements, the hydraulic cylinder 4 can be activated to control the lifting and lowering of the receiving hopper 3.

[0038] Example 2

[0039] The solution in Example 1 will be further described below with reference to its specific working method.

[0040] like Figure 2 As shown, in a preferred embodiment, based on the above method, the inner side of the top of the vertical sleeve 2 is provided with a slope, and the outer side of the vertical sleeve 2 is in close contact with the inner side of the receiving hopper 3. The slope of the top of the vertical sleeve 2 can effectively prevent the accumulation of coal, and the close contact between the outer side of the vertical sleeve 2 and the receiving hopper 3 can prevent coal powder from spilling.

[0041] like Figure 2 , Figure 3 and Figure 4As shown, in a preferred embodiment, based on the above method, the buffer mechanism 5 further includes a sliding sleeve 501, a fixing block 502, a spring 503, and a damper 504. The sliding sleeve 501 is sleeved on the outer side of the bottom end of the receiving hopper 3. Fixing blocks 502 are fixed on both sides of the sliding sleeve 501. The output end of the hydraulic cylinder 4 is fixedly connected to the bottom of the fixing block 502. A spring 503 is provided between the fixing block 502 and the top side of the receiving hopper 3. A damper 504 is provided between the fixing block 502 and the bottom side of the receiving hopper 3.

[0042] During the material receiving process, after the coal block impacts the top of the receiving hopper 3, the spring 503 reduces the impact force generated by the material contacting the receiving hopper 3. In addition, if the bucket causes pressure when it contacts the receiving hopper 3, the spring 503 can deform so that the receiving hopper 3 can move downward and reduce the damage to the receiving hopper 3.

[0043] like Figure 3 As shown, in a preferred embodiment, based on the above method, a sliding rod 505 is further provided vertically on the fixing block 502. The top end of the sliding rod 505 is fixedly connected to the receiving hopper 3. The use of the sliding rod 505 can ensure that the receiving hopper 3 can only slide vertically.

[0044] like Figure 3 As shown, in a preferred embodiment, based on the above method, both sides of the receiving hopper 3 are provided with protrusions, and the bottom of the protrusions is horizontal and connected to the top of the spring 503 and the damper 504 respectively. The use of the protrusions can facilitate the stable installation and positioning of the spring 503 and the damper 504.

[0045] like Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the expansion mechanism 6 further includes a surrounding plate 601 and a positioning component. The surrounding plates 601 are respectively hinged to the outer side of the top of the receiving hopper 3, and a positioning component is provided between adjacent surrounding plates 601.

[0046] When expanding the capacity of the receiving hopper 3, the surrounding plate 601 is flipped upwards to form a rectangle, thereby increasing the volume of the receiving hopper 3. Then, the position of the surrounding plate 601 is fixed using the positioning component. In addition, for the convenience of feeding, only the three sets of surrounding plates 601 at the top of the receiving hopper 3 can be erected to form a c-shape.

[0047] like Figure 3 and Figure 4As shown, in a preferred embodiment, based on the above method, the positioning component further includes a sleeve 602, a wire rope 603, and a rod 604. The sleeve 602 is fixed to one end of the outer side of the enclosure 601, and the wire rope 603 is installed on the other end of the outer side of the enclosure 601. Each wire rope 603 is equipped with a rod 604 that is inserted into the sleeve 602.

[0048] After the enclosure panel 601 is erected, the insert rod 604 is inserted into the insert sleeve 602 at the end of another set of enclosure panels 601 to position the two adjacent sets of enclosure panels 601.

[0049] Example 3

[0050] The solutions in Embodiments 1 and 2 will be further described below with reference to their specific working methods.

[0051] When using a loader for loading, if the loader bucket capacity is greater than the receiving hopper 3 capacity, the side panels 601 are flipped upwards to form a rectangle. Then, the insert rod 604 is inserted into the sleeve 602 at the end of another set of side panels 601 to position the two adjacent sets of side panels 601. Alternatively, for easier loading, only the three sets of side panels 601 at the top of the receiving hopper 3 can be erected to form a U-shape, and then the insert rod 604 and sleeve 602 are used for positioning. During the material drop process, there is a certain drop between the material and the receiving hopper 3. When the coal block impacts the top of the receiving hopper 3, the spring 503 reduces the impact force generated by the material hitting the receiving hopper 3. In addition, if the bucket causes pressure on the receiving hopper 3, the spring 503 can deform to allow the receiving hopper 3 to move downwards, reducing damage to the receiving hopper 3. During use, the hydraulic cylinder 4 can also be activated to control the lifting and lowering of the receiving hopper 3 and adjust the height of the receiving point according to the usage requirements.

[0052] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A coal breaking device comprising a breaker body (1), characterised in that: The top end of the crusher body (1) is fixed with a vertical sleeve (2), the outer side of the vertical sleeve (2) is vertically slidably installed with a receiving hopper (3), the two sides of the top of the crusher body (1) are provided with hydraulic cylinders (4) for controlling the lifting of the receiving hopper (3), a buffer mechanism (5) is arranged between the output end of the hydraulic cylinder (4) and the bottom of the receiving hopper (3), and the outer side of the top of the receiving hopper (3) is provided with an expansion mechanism (6).

2. A coal breaking device as claimed in claim 1, characterised in that: The inner side of the top end of the vertical sleeve (2) is provided with a slope, and the outer side of the vertical sleeve (2) is attached to the inner side of the receiving hopper (3).

3. A coal breaking device as claimed in claim 2, characterised in that: The buffer mechanism (5) comprises a sliding sleeve (501), a fixed block (502), a spring (503) and a damper (504), the sliding sleeve (501) is sleeved on the outer side of the bottom end of the receiving hopper (3), the two sides of the sliding sleeve (501) are fixed with the fixed block (502), the output end of the hydraulic cylinder (4) is fixedly connected with the bottom of the fixed block (502), the spring (503) is arranged between the side top of the receiving hopper (3) and the fixed block (502), and the damper (504) is arranged between the side bottom of the receiving hopper (3) and the fixed block (502).

4. A coal breaking device as claimed in claim 3, characterised in that: A sliding rod (505) is vertically slidably arranged on the fixed block (502), and the top end of the sliding rod (505) is fixedly connected with the receiving hopper (3).

5. A coal breaking device as claimed in claim 4, characterised in that: The two sides of the receiving hopper (3) are provided with protrusions, and the bottom ends of the protrusions are horizontally connected with the top ends of the spring (503) and the damper (504) respectively.

6. A coal breaking device as claimed in claim 5, characterised in that: The expansion mechanism (6) comprises a surrounding plate (601) and a positioning assembly, the surrounding plate (601) is hingedly installed on the outer side of the top of the receiving hopper (3), and the positioning assembly is arranged between adjacent surrounding plates (601).

7. A coal breaking device as claimed in claim 6, characterised in that: The positioning assembly comprises a plug sleeve (602), a steel wire rope (603) and a plug rod (604), the plug sleeve (602) is fixed on one end of the outer side of the surrounding plate (601), the steel wire rope (603) is installed on the other end of the outer side of the surrounding plate (601), and the plug rod (604) is installed on the steel wire rope (603).

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