Vertical shaft type crusher

Abstract

The utility model discloses a vertical shaft type crusher which comprises a machine frame, a crushing cavity is installed on the top of the machine frame, a rotor body and a material lining are arranged in the crushing cavity, a feeding opening is formed above the rotor body, a conical feeding hopper is arranged above the feeding opening, the feeding opening is connected with the crushing cavity and the conical feeding hopper, and a material distributing disc is arranged on the lower portion in the conical feeding hopper. The vertical shaft type crusher has the advantages that the vertical shaft type crusher is capable of effectively preventing broken stones from overflowing to the material distribution disc during rapid material falling, so that the material distribution disc is prevented from being blocked; the material is thrown out by the rotor and impacts the material distribution disc, so that the material distribution disc is abraded too quickly; the failure rate is low and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of sand making equipment, in particular to a vertical shaft crusher. Background Art

[0002] Vertical shaft crusher, also known as vertical shaft impact sand making machine, is a new generation of sand making equipment. Compared with previous hammer crushers, double roller crushers and other equipment, it has the characteristics of high sand output rate and good finished product particle shape. It is widely used in sand and gravel, mineral processing, cement and other industries.

[0003] The core component of the vertical shaft crusher is the rotor body. When the material is fed into the rotor body by the distributor, it enters different emission channels under the action of centrifugal force, and is accelerated to 60-75m / s under the centrifugal force and ejected, impacting the vortex crushing chamber for strong self-crushing. In order to achieve uniform material distribution, the existing vertical shaft crusher generally has a distribution plate at the bottom of the feed hopper and above the rotor body, and uses the distribution plate to distribute the material by self-spin. Such as the vertical shaft crusher disclosed in Chinese patent CN 216631096 U. The distribution plate is directly arranged above the rotor body. When the feeding speed is too fast, the crushed stone will fill the middle cavity of the rotor and overflow to the distribution plate, causing the distribution plate to get stuck; in addition, the fast-rotating rotor will throw out the high-speed moving aggregate, which will hit the distribution plate after rebounding from the material lining. Long-term collision causes the distribution plate to wear too quickly and reduce its service life. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a vertical shaft crusher.

[0005] The technical solution adopted by the utility model is:

[0006] A vertical shaft crusher comprises a frame, a crushing chamber is installed on the top of the frame, a rotor body and a material lining are arranged in the crushing chamber, a feeding port is arranged above the rotor body, a feed hopper is arranged above the feeding port, the feeding port connects the crushing chamber and the feed hopper, a discharge port is arranged at the bottom of the feed hopper, a dividing plate is arranged at the lower end inside, a feed pipe is arranged in the feeding port, and the inner diameter of the discharge port is smaller than the inner diameter of the feed pipe; the discharge port, the feed pipe and the rotor body are coaxially arranged, the lower end of the feed pipe is inserted into the drop hole of the rotor body and a distance is arranged with the inner wall of the drop hole.

[0007] Furthermore, a feed pipe protective plate is provided above the feed pipe, and the feed pipe protective plate includes a protective plate bracket fixedly installed in the feeding port and a feed protective pipe detachably installed on the protective plate bracket, and the inner diameter of the feed protective pipe is larger than the inner diameter of the discharge port and smaller than the inner diameter of the feed pipe.

[0008] Providing a feed pipe guard plate can reduce the wear of the material on the inner wall of the feed pipe and facilitate replacement of the feed pipe when it is worn.

[0009] Furthermore, the lower end of the feed protection tube can be freely inserted into the feed pipe, thereby further reducing the wear of the material on the inner wall of the feed pipe.

[0010] Furthermore, the feed protection tube is inserted into the feed tube to a depth of 5-10 mm, so that the feed tube is protected and replaced easily when worn.

[0011] Furthermore, the feed protection tube is detachably connected to the protection plate bracket by bolts, so that the feed protection tube can be easily replaced.

[0012] Furthermore, the feed pipe is detachably mounted in the feed port through a feed pipe bracket, so that the feed pipe can be replaced when it is worn.

[0013] Furthermore, the feed pipe is inserted into the rotor body blanking hole to a depth of 20-50 mm, so as to ensure that the material enters the interior of the rotor body and facilitate replacement of the feed pipe when it is worn.

[0014] The beneficial effects of the utility model are as follows: by setting the feed pipe, the material is evenly distributed by the distribution plate and then falls into the rotor body through the feed pipe, which can effectively prevent the crushed stones from overflowing onto the distribution plate during rapid material dropping, causing the distribution plate to get stuck; and the material is thrown out by the rotor and hits the distribution plate, causing the distribution plate to wear too quickly. The vertical shaft crusher of the utility model has a lower failure rate and a longer service life of the distribution plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the vertical shaft crusher of this application. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings and a preferred implementation manner.

[0017] See also Figure 1 A vertical shaft crusher comprises a frame 1, a crushing chamber is installed on the top of the frame 1, a rotor body 3 and a material lining 2 are arranged in the crushing chamber, a feeding port 8 is arranged above the rotor body 3, a feed hopper 4 is arranged above the feeding port 8, the feeding port 8 connects the crushing chamber and the feed hopper 4, a discharge port 41 is arranged at the bottom of the feed hopper 4, a dividing plate 5 is arranged at the lower end inside, a feed pipe 7 and a feed pipe protective plate 6 are arranged in the feeding port 8, the feed pipe protective plate 6 comprises a protective plate bracket fixedly installed in the feeding port and a feed protective pipe 61 detachably installed on the protective plate bracket, the inner diameter of the feed protective pipe is larger than the inner diameter of the discharge port and smaller than the inner diameter of the feed pipe; the dividing plate 5, the discharge port 41, the feed protective pipe 6, the feed pipe 7 and the rotor body 3 are coaxially arranged, that is, the center lines are located on the same axis; the lower end of the feed protective pipe 61 can be slidably inserted into the feed pipe 7, and the lower end of the feed pipe 7 is inserted into the blanking hole of the rotor body 3 and a distance is set with the inner wall of the blanking hole.

[0018] In specific implementation, the feed port 8 can be designed as a section of circular pipe installed at the center of the top cover of the crushing chamber. The feed hopper 4 is a conical hopper. The lower end of the conical feed hopper 4 is connected to the upper end of the feed port 8.

[0019] The depth of the feed protection tube 6 inserted into the feed tube 7 is 5-10mm. In order to facilitate the disassembly and assembly of the feed tube, the protective disc bracket is preferably divided into a fixed part and a detachable part, the fixed part is welded to the inner wall of the feed port 8, and the detachable part is respectively connected to the fixed part and the feed protection tube 61 by bolts. There are at least three protective disc brackets, which are evenly distributed along the circumference of the feed port, and the outer peripheral surface of the feed protection tube 61 is provided with a feed protection tube mounting plate corresponding to the protective disc bracket, which is used to penetrate the bolts.

[0020] The feed pipe 7 is detachably mounted in the feed port 8 through a feed pipe bracket. The lower end of the feed pipe is inserted into the rotor body drop hole, and the insertion depth is 20-50 mm. There are at least three feed pipe brackets, which are evenly distributed along the circumference of the feed port. The feed pipe brackets are welded to the inner wall of the feed port 8, and the feed pipe 7 is connected to the feed pipe brackets by bolts. The outer circumference of the feed pipe 7 is provided with a feed pipe mounting plate corresponding to the feed pipe brackets, which is used to penetrate the bolts.

[0021] When the utility model is used, the material is dispersed by the distribution plate 5 and then falls into the feed protection tube 61 from the discharge port 41, and then falls into the rotor body through the feed pipe 7, thereby solving the technical problems of the existing crusher that the distribution plate is easy to get stuck and wears too fast, resulting in a reduced service life.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention, and these improvements and modifications are also within the protection scope of the present invention.

Claims

1. A vertical shaft crusher, comprising a frame (1), characterized in that: A crushing chamber is installed on the top of the frame (1), a rotor body (3) and a material lining (2) are arranged in the crushing chamber, a feeding port (8) is arranged above the rotor body (3), a feeding hopper (4) is arranged above the feeding port (8), the feeding port connects the crushing chamber and the feeding hopper (4), a discharge port (41) is arranged at the bottom of the feeding hopper (4), a material distribution plate (5) is arranged at the lower end inside, a feed pipe (7) is arranged in the feeding port (8), and the inner diameter of the discharge port (41) is smaller than the inner diameter of the feed pipe (7); the discharge port (41), the feed pipe (7) and the rotor body (3) are coaxially arranged, and the lower end of the feed pipe (7) is inserted into the drop hole of the rotor body (3) and a distance is set between the lower end of the feed pipe (7) and the inner wall of the drop hole.

2. A vertical shaft crusher according to claim 1, characterized in that: A feed pipe protection plate (6) is provided above the feed pipe (7), the feed pipe protection plate (6) comprising a protection plate bracket fixedly mounted in the feed port (8) and a feed protection pipe (61) detachably mounted on the protection plate bracket, the inner diameter of the feed protection pipe (61) being larger than the inner diameter of the discharge port (41) and smaller than the inner diameter of the feed pipe (7).

3. A vertical shaft crusher according to claim 2, characterized in that: The lower end of the feed protection tube (61) is freely inserted into the feed pipe (7).

4. A vertical shaft crusher according to claim 3, characterized in that: The depth of the feed protection tube (61) inserted into the feed pipe (7) is 5-10 mm.

5. A vertical shaft crusher according to claim 2, characterized in that: The feed protection pipe (61) is detachably connected to the protection plate bracket by bolts.

6. A vertical shaft crusher according to claim 1, characterized in that: The feed pipe (7) is detachably mounted in the feed port (8) via a feed pipe bracket.

7. A vertical shaft crusher according to claim 6, characterized in that: The depth of the feed pipe (7) inserted into the blanking hole of the rotor body (3) is 20-50 mm.

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