Crushing device

Abstract

The utility model belongs to the field of crushing devices, and provides a crushing device which comprises a machine shell and a crushing assembly installed in the machine shell, a feeding port is formed in the top face of the machine shell, a material collecting box is inserted in the machine shell in a sliding mode, and a downward pressing mechanism is further arranged in the machine shell and located between the feeding port and the crushing assembly. After raw materials are fed into the machine shell from the feeding port, the driving unit in the pressing mechanism can drive the movable plate to move from top to bottom, so that the raw materials are in full contact with the crushing assembly, the phenomenon that the raw materials idle on the crushing assembly is avoided, and the crushing efficiency of the raw materials is improved.

Description

Technical Field

[0001] The utility model relates to the field of crushing devices, in particular to a crushing device. Background Art

[0002] The main component of gypsum powder is calcium sulfate dihydrate, which is a very important industrial raw material. It is widely used in building materials, chemical industry, agriculture and other fields. The production process of gypsum powder is generally ore storage-crushing-grinding-calcination-dehydration packaging.

[0003] When existing crushing devices crush gypsum raw materials, most of them just put the raw materials into the feed port of the equipment. However, during the crushing period, the raw materials are gradually moved down and crushed only by their own gravity. Not only does it have the defect of low crushing efficiency, but some raw materials will also idle on the crushing roller. Therefore, it is necessary to design corresponding technical solutions to solve the existing technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a crushing device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A crushing device comprises a casing and a crushing assembly installed in the casing, a feed port is arranged on the top surface of the casing, a receiving box is slidably inserted in the casing, a pressing mechanism is also arranged in the casing between the feed port and the crushing assembly, the pressing mechanism comprises a fixed frame, a movable plate, a telescopic unit, a baffle and a driving assembly, the fixed frame is fixedly mounted on the top surface of the inner cavity of the casing, the movable plate is movably mounted in the fixed frame through a plurality of telescopic units, a rectangular hole is opened on the movable plate, baffles are symmetrically mounted on both sides of the rectangular hole on the bottom surface of the movable plate, the baffles are rotatably arranged by a pin shaft, a return torsion spring is also sleeved on the pin shaft, the driving assembly is used to provide power for the movable plate to move from top to bottom, and an intermittent feeding mechanism is also installed in the casing at a position corresponding to the feed port.

[0007] As a further solution of the utility model: the telescopic unit includes a plurality of telescopic rods symmetrically mounted on a movable plate, the top ends of the telescopic rods pass through the top surface of the casing and are mounted with limit plates, and a return spring is also sleeved on the rod body of the telescopic rod located between the limit rod and the casing.

[0008] As a further solution of the utility model: the driving assembly includes a pair of rotating members symmetrically rotatably arranged in the casing, and the rotation trajectory of the rotating members interferes with the movement trajectory of the movable plate.

[0009] As a further solution of the utility model: the intermittent feeding mechanism includes a material storage bin fixedly installed in the casing, a rotating shaft rotatably arranged in the material storage bin and a roller coaxially fixedly installed thereon, the rotating shaft is driven by a motor arranged outside the casing, a material drop opening is provided at the bottom of the material storage bin, and a slot is provided on the roller.

[0010] As a further solution of the utility model: the rotating member is coaxially fixedly mounted on the rotating shaft.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with a downward pressing mechanism. When the raw materials are put into the casing from the feed port, the driving unit in the downward pressing mechanism can drive the movable plate to move from top to bottom, so that the raw materials are fully in contact with the crushing components, avoiding the phenomenon of idling of the raw materials on the crushing components, and improving the crushing efficiency of the raw materials.

[0013] 2. The utility model provides an intermittent feeding mechanism, which can intermittently put an appropriate amount of gypsum raw materials onto the crushing component. Compared with the prior art of directly putting the raw materials onto the crushing component, the utility model avoids the influence of raw material accumulation on the crushing efficiency and further improves the crushing efficiency of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall stereogram of a crushing device;

[0015] Figure 2 It is a schematic diagram of the internal structure of a crushing device;

[0016] Figure 3 A cross-sectional view of a casing in a crushing device;

[0017] In the figure: 1- housing, 2- crushing assembly, 3- feed port, 4- receiving box, 5- fixed frame, 6- movable plate, 7- rectangular hole, 8- baffle, 9- pin shaft, 10- rotating part, 11- telescopic rod, 12- spring, 13- limit plate, 14- material storage bin, 15- rotating shaft, 16- roller, 17- slot, 18- drop port, 19- motor. DETAILED DESCRIPTION

[0018] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0019] See also Figure 1-3 A crushing device is used for crushing gypsum raw materials. People skilled in the art should be able to understand that the crushing device can also be used for crushing other solid materials, and the present invention is not limited in this regard.

[0020] Specifically, it includes a casing 1 and a crushing assembly 2 installed in the casing 1, the top surface of the casing 1 is provided with a feed port 3, and a material receiving box 4 is slidably inserted in the casing 1, and a pressing mechanism is also provided between the feed port 3 and the crushing assembly 2 in the casing 1, and the pressing mechanism includes a fixed frame 5, a movable plate 6, a telescopic unit, a baffle 8 and a driving assembly, the fixed frame 5 is fixedly installed on the top surface of the inner cavity of the casing 1, the movable plate 6 is movably installed in the fixed frame 5 through a plurality of telescopic units, and a rectangular hole is opened on the movable plate 6 7. The bottom surface of the movable plate 6 is located on both sides of the rectangular hole 7 and baffles 8 are symmetrically installed. The baffles 8 are rotatably arranged by a pin shaft 9, and a return torsion spring is also sleeved on the pin shaft 9. The driving assembly is used to provide power for the movable plate 6 to move from top to bottom. By setting a downward pressing mechanism, when the raw material is put into the casing 1 from the feed port 3, the driving unit in the downward pressing mechanism can drive the movable plate 6 to move from top to bottom, so that the raw material is fully in contact with the crushing assembly 2, avoiding the phenomenon of idling of the raw material on the crushing assembly 2, and improving the crushing efficiency of the raw material.

[0021] The telescopic unit includes a plurality of telescopic rods 11 symmetrically mounted on the movable plate 6. The top ends of the telescopic rods 11 penetrate the top surface of the housing 1 and are mounted with limit plates 13. The telescopic rods 11 are located between the limit rods and the housing 1 and are also sleeved with return springs 12.

[0022] The driving assembly includes a pair of rotating members 10 symmetrically rotatably arranged in the housing 1 . Specifically, the cross section of the rotating member 10 is a cam-shaped structure, and the rotation trajectory of the rotating member 10 interferes with the movement trajectory of the movable plate 6 .

[0023] In addition, an intermittent feeding mechanism is also installed at the position corresponding to the feed port 3 in the casing 1, and the intermittent feeding mechanism includes a feeding bin 14 fixedly installed in the casing 1, a rotating shaft 15 rotatably arranged in the feeding bin 14, and a roller 16 coaxially fixedly installed thereon, and the rotating shaft 15 is driven by a motor 19 arranged outside the casing 1, and a feeding port 18 is provided at the bottom of the feeding bin 14, and a slot 17 is provided on the roller 16. By setting up the intermittent feeding mechanism, an appropriate amount of gypsum raw material can be intermittently added to the crushing component 2. Compared with directly adding the raw material to the crushing component 2 in the prior art, the influence of raw material accumulation on the crushing efficiency is avoided, and the crushing efficiency of the raw material is further improved.

[0024] Preferably, the rotating member 10 is coaxially fixedly mounted on the rotating shaft 15. With such an arrangement, there is no need to provide an additional driving element to drive the rotation of the rotating member 10, thereby reducing the power consumed during the operation of the device.

[0025] Specifically, when the device is used to crush the gypsum raw material, the raw material is first placed in the feed port 3, and then the motor 19 and the crushing mechanism are controlled to operate simultaneously. When the motor 19 drives the rotating shaft 15 to rotate, the slot 17 on the roller 16 can push an appropriate amount of raw material to the bottom of the storage bin 14, and the raw material falls on the crushing assembly 2 through the drop port 18, thereby realizing intermittent feeding of the raw material. In addition, when the slot 17 on the roller 16 rotates from top to bottom, the movable plate 6 is moved between the rotating member 10 and the plurality of elastic units. Under the action of the groove 17, it moves from bottom to top. When the slot 17 moves to the position of the drop port 18, the movable plate 6 rises to the highest position. At this time, the material bin 14 passes through the rectangular hole 7 and drives the two baffles 8 to flip. The raw material can fall onto the crushing component 2 through the gap between the two baffles 8. Conversely, in the process of the slot 17 moving from bottom to top, the movable plate 6 moves downward, and the two baffles 8 reverse under the action of the return torsion spring and close the rectangular hole 7. The movable plate 6 cooperates with the baffle 8 to apply downward pressure on the raw material, thereby accelerating the crushing of the raw material.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A crushing device, comprising a housing (1) and a crushing assembly (2) installed in the housing (1), characterized in that: The top surface of the casing (1) is provided with a feed port (3), and a receiving box (4) is slidably inserted in the casing (1). A pressing mechanism is also provided in the casing (1) between the feed port (3) and the crushing assembly (2), and the pressing mechanism comprises a fixed frame (5), a movable plate (6), a telescopic unit, a baffle (8) and a driving assembly. The fixed frame (5) is fixedly mounted on the top surface of the inner cavity of the casing (1), and the movable plate (6) is movably mounted in the fixed frame (5) through a plurality of telescopic units. A rectangular hole (7) is provided on the movable plate (6), and baffles (8) are symmetrically mounted on the bottom surface of the movable plate (6) on both sides of the rectangular hole (7). The baffles (8) are rotatably arranged by a pin shaft (9), and a return torsion spring is also sleeved on the pin shaft (9). The driving assembly is used to provide power for the movable plate (6) to move from top to bottom. An intermittent feed mechanism is also installed in the casing (1) at a position corresponding to the feed port (3).

2. The crushing device according to claim 1, characterized in that: The telescopic unit comprises a plurality of telescopic rods (11) symmetrically mounted on a movable plate (6); the top ends of the telescopic rods (11) penetrate the top surface of the housing (1) and are mounted with limit plates (13); and a return spring (12) is sleeved on the rod body of the telescopic rod (11) located between the limit rod and the housing (1).

3. The crushing device according to claim 1, characterized in that: The driving assembly comprises a pair of rotating members (10) symmetrically arranged in the housing (1), and the rotational tracks of the rotating members (10) interfere with the movement track of the movable plate (6).

4. The crushing device according to claim 1, characterized in that: The intermittent feeding mechanism comprises a material storage bin (14) fixedly mounted in a housing (1), a rotating shaft (15) rotatably mounted in the material storage bin (14), and a roller (16) coaxially fixedly mounted thereon, wherein the rotating shaft (15) is driven by a motor (19) disposed outside the housing (1), a material drop opening (18) is provided at the bottom of the material storage bin (14), and a slot (17) is provided on the roller (16).

5. The crushing device according to claim 3, characterized in that: The rotating member (10) is coaxially fixedly mounted on the rotating shaft (15).

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