Hammer crusher

Abstract

The utility model discloses a hammer crusher, which belongs to the technical field of material crushing and specifically comprises a shell, a hammer component and a sieve plate, the hammer component and the sieve plate are arranged in the shell, a dredging component is arranged below the sieve plate and comprises dredging rods and a driving mechanism, the number of the dredging rods corresponds to that of holes of the sieve plate, and the driving mechanism controls the dredging rods to be inserted into or separated from the holes of the sieve plate. The dredging assembly is arranged in the machine shell, when the holes of the sieve plate are blocked and in the shutdown state, the driving mechanism controls the dredging rod to eject broken stones in the holes of the sieve plate out, blockage in the holes of the sieve plate can be cleared away without taking out the sieve plate when the sieve plate is blocked, time and labor are saved, and the cleaning efficiency is improved. And the cleaning efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of material crushing, and particularly relates to a hammer crusher. Background Technique

[0002] A hammer crusher is a device that crushes materials in an impact form, and is divided into two forms: single rotor and double rotor. Hammer crushers are mainly used in industrial sectors such as cement, chemical industry, electric power, and metallurgy to crush medium-hard materials, such as medium crushing or fine crushing of materials with larger particle sizes such as limestone, slag, coke, and coal.

[0003] The existing hammer crusher mainly includes a casing, a rotor arranged inside the casing, and a motor for driving the rotor to rotate. A counterattack lining plate is also arranged on the inner wall of the casing; a feed pipe is arranged at the top of the casing, and a sieve plate is arranged at the bottom of the casing; several hammers are arranged on the rotor. When in use, the motor is started, and the motor drives the rotor to rotate, so as to drive the hammers on the rotor to rotate. Then, materials are put into the casing, and the materials are crushed by the high-speed impact of the rotating hammers. At the same time, a part of the materials impact the counterattack lining plate under the action of the hammers, and the counterattack lining plate gives the materials a reaction force, so that the materials move in the reverse direction and collide with the hammers again to achieve crushing. The crushed materials fall onto the sieve plate and are screened by the sieve plate. The materials with larger particle sizes remain on the sieve plate and continue to be crushed by the hammers.

[0004] For a crusher, in order to ensure the service life of the sieve plate, it is necessary to ensure that the sieve plate has a high strength. The common practice in the industry is to increase the thickness of the sieve plate to enhance its service life. For small crushers, the thickness of the sieve plate will be more than 3 cm. This will cause that in the actual use process, affected by the degree of self-crushing of the materials or the water content of the materials, etc., the materials are likely to get stuck in the holes of the sieve plate, resulting in the accumulation of materials in the casing. And limited by the hammer assembly part, the distance between the hammer assembly and the sieve plate is small, and it will be time-consuming and laborious to take out the sieve plate for cleaning. Content of the Utility Model

[0005] The purpose of the utility model is to provide a hammer crusher to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, a technical solution adopted by the utility model is: a hammer crusher, including a casing, a hammer assembly and a sieve plate arranged therein. A dredging assembly is arranged below the sieve plate, and the dredging assembly includes dredging rods corresponding to the number of holes in the sieve plate and a driving mechanism for controlling the dredging rods to insert into or disengage from the holes of the sieve plate.

[0007] Preferably, multiple dredging rods are commonly fixed on a movable base, and the driving mechanism controls the dredging rods to insert into or disengage from the holes of the sieve plate by lifting or lowering the movable base.

[0008] Preferably, the driving mechanism includes a fixed base and a lifting component, and the movable base is slidably connected to the fixed base to fix its running direction.

[0009] Preferably, the lifting component includes a rotating shaft and an eccentric block fixed thereon, and the movable base realizes the lifting of the movable base through the contact of the eccentric block therewith.

[0010] Preferably, the dredging rods are divided into multiple groups, and each group of dredging rods is respectively fixed on a movable base. The multiple movable bases are jointly slidably connected to the fixed base, and each movable base is controlled by a lifting component respectively.

[0011] Preferably, a reinforcing rib is fixed between any two dredging rods in each group of dredging rods.

[0012] Preferably, the top surface of the reinforcing rib is an arc surface.

[0013] Preferably, the dredging component is detachably connected to the casing.

[0014] Preferably, a set of tracks is fixed inside the casing, and a sliding groove / slider for cooperating with the tracks is arranged on the fixed base.

[0015] Preferably, a lever is fixed at the end of the rotating shaft.

[0016] The beneficial effects of the present utility model: In this solution, by setting a dredging component, when the holes in the sieve plate are blocked, in the state of shutdown, the driving mechanism is used to control the dredging rod to eject the crushed stones in the holes of the sieve plate. This solution can clean the blockage in the holes of the sieve plate without removing the sieve plate when the sieve plate is blocked, which saves time and effort and effectively improves the cleaning efficiency;

[0017] Among them, by rotating the rotating shaft, the eccentric block contacts the movable base, and the movable base drives the dredging rod to rise to dredge the sieve plate. This setting has a simple structure, low cost, and simple operation;

[0018] Among them, by setting the dredging rods, lifting components and movable bases in multiple groups, the dredging component is divided into multiple parts. Although the operation frequency is increased, it can make the dredging steps more labor-saving, and then make this product applicable to more specifications of crushers;

[0019] Among them, by setting the reinforcing ribs, the overall strength between each group of dredging rods can be enhanced, the possibility of bending and damage can be reduced, and. By setting the top surface of the reinforcing rib as an arc surface, the crushed materials can be prevented from accumulating thereon;

[0020] Among them, by setting the detachable connection between the dredging component and the casing, the whole dredging component can be circulated among multiple crusher devices, reducing the usage quantity and thus reducing the overall cost of the enterprise. Brief Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the connection structure of each component inside the casing of the present utility model;

[0023] Figure 3 is a schematic diagram of the connection relationship between the dredging component and the casing in the present utility model;

[0024] Figure 4 is a schematic diagram of the structure of the dredging component in the present utility model;

[0025] Figure 5 is a schematic diagram of the structure of the movable base in the present utility model;

[0026] In the figure: 1, casing; 101, access door; 2, sieve plate; 3, movable base; 31, dredging rod; 32, reinforcing rib; 33, guiding hole; 34, abutting plate; 4, fixed base; 41, guiding rod; 42, rotating shaft; 43, eccentric block; 44, shaft seat; 45, lever; 46, track; 47, support seat. Detailed Embodiment

[0027] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the scope of protection of the present utility model more clearly defined.

[0028] Embodiment:

[0029] Refer to Figure 1 , Figure 2 , a hammer crusher, including a casing 1, a hammer head assembly and a sieve plate 2 disposed therein. A dredging component is arranged below the sieve plate 2. The dredging component includes a dredging rod 31 corresponding to the number of holes in the sieve plate 2 and a driving mechanism for controlling the insertion or detachment of the dredging rod 31 from the holes in the sieve plate 2. An access door 101 is provided on the casing 1 to facilitate the disassembly of the dredging component. The shape of the access door 101 is set to fit the cross-sectional shape of the entry direction of the dredging component. The access door 101 can be hung on the casing 1 through a bolt or opened by means of horizontal sliding, horizontal flipping, etc. for convenience.

[0030] Refer to Figure 3 , Figure 4 and Figure 5, the dredging component includes a movable base 3 and a driving mechanism. The driving mechanism includes a fixed base 4 and a lifting component. The driving mechanism controls the dredging rod 31 to insert into or disengage from the holes of the sieve plate 2 by lifting or lowering the movable base 3. Among them, multiple guide rods 41 are fixed on the fixed base 4, and multiple guide holes 33 corresponding to the number of the guide rods 41 are formed on the movable base 3. The movable base 3 is slidably connected to the fixed base 4 through the insertion connection of the guide rods 41 and the guide holes 33 to fix its running direction.

[0031] Among them, referring to Figure 3 , Figure 4 and Figure 5 , the dredging rods 31 are divided into multiple groups, and each group of dredging rods 31 is respectively fixed on a movable base 3. The multiple movable bases 3 are jointly slidably connected to the fixed base 4. Each movable base 3 is respectively controlled by a lifting component. The lifting component includes a rotating shaft 42 and multiple eccentric blocks 43 fixed thereon. Multiple shaft seats 44 are arranged on the fixed base 4. The shaft seats 44 play a role in fixing the rotating shaft 42 without affecting its rotation. Multiple abutting plates 34 are fixed on the movable base 3. The lifting of the movable base 3 is realized by the abutment of the eccentric blocks 43 and the abutting plates 34. Among them, a reinforcing rib 32 is fixed between any two dredging rods 31 in each group of dredging rods 31, and the top surface of the reinforcing rib 32 is an arc surface. At the same time, a lever 45 is fixed at the end of the rotating shaft 42 to facilitate manual rotation of the rotating shaft 42. The rotating shaft 42 passes through the access door 101, and a hole / slot is formed on the access door 101 that will not abut against the rotating shaft 42 or the lever 45 during its opening and closing process.

[0032] Among them, referring to Figure 3 , Figure 4 , a set of tracks 46 are fixed in the casing 1. A chute for cooperating with the tracks 46 is arranged on the fixed base 4. In this embodiment, the tracks 46 are two cylindrical rods. The arrangement of the cylindrical rods is to prevent materials from accumulating on them and affecting the sliding effect of the dredging component when taking out and putting in on the tracks 46. At the same time, multiple support seats 47 are fixed in the casing 1. The two ends of the tracks 46 are fixed by being lapped in the support seats 47.

[0033] Working principle and process:

[0034] When using the product in this solution, first complete the installation of the dredging component, that is, place it on the track 46. The dredging component can be placed in the casing 1 for a long time, or it can be placed when needed. When it is detected that the sieve plate 2 is blocked, the lever 45 can be manually pulled to drive the eccentric block 43 to rotate. Through the contact between the eccentric block 43 and the contact plate 34, the movable base 3 rises, and then the dredging rod 31 completes the dredging of the sieve plate 2. When the dredging component is not needed, it can be placed in the casing 1 or taken out and stored.

[0035] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A hammer crusher, characterized in that: It comprises a casing (1), a hammer assembly and a sieve plate (2) disposed therein, wherein a dredging assembly is disposed below the sieve plate (2), and the dredging assembly comprises dredging rods (31) whose number corresponds to the holes of the sieve plate (2) and a driving mechanism for controlling the dredging rods (31) to be inserted into or separated from the holes of the sieve plate (2); A plurality of the dredging rods (31) are fixed together on a movable base (3), and the driving mechanism controls the dredging rods (31) to be inserted into or separated from the holes of the screen plate (2) by lifting or lowering the movable base (3); The driving mechanism comprises a fixed base (4) and a lifting assembly, and the movable base (3) is slidably connected to the fixed base (4) to achieve fixation of its running direction; The lifting assembly comprises a rotating shaft (42) and an eccentric block (43) fixed thereon, and the movable base (3) is lifted and lowered by the interference between the eccentric block (43) and the rotating shaft. The dredging rods (31) are divided into a plurality of groups and each group of dredging rods (31) is fixed on a movable base (3), the plurality of movable bases (3) are slidably connected to a fixed base (4), and each movable base (3) is controlled by a lifting assembly; The movable base is a hollow structure, and the fixed base is hollow; A pull rod (45) is fixed to the end of the rotating shaft (42); The dredging component is detachably connected to the casing (1).

2. A hammer crusher according to claim 1, characterized in that: A reinforcing rib (32) is fixed between any two dredging rods (31) in each group of dredging rods (31).

3. A hammer crusher according to claim 2, characterized in that: The top surface of the reinforcing rib (32) is a curved surface.

4. A hammer crusher according to claim 1, characterized in that: A set of rails (46) is fixed in the housing (1), and a slide groove / slider used in conjunction with the rails (46) is provided on the fixed base (4).

Images