Vertical shaft impact crusher and sand making system

Abstract

The present invention discloses a vertical shaft impact crusher and sand making system, including: a frame assembly; a crushing mechanism, including a rotor assembly, used to eject materials into a crushing chamber for crushing; the axis of the rotor assembly is arranged vertically; a main shaft assembly, used for transmission; a transmission system, including a reducer, a base located below the crushing mechanism, and a motor installed horizontally on the base, the input shaft of the reducer and the output shaft of the reducer are arranged at 90 degrees for reversing transmission; the output end of the motor is connected to the input end of the reducer through a first coupling, and the output end of the reducer is connected to the main shaft assembly through a second coupling. The motor is installed horizontally and can be suitable for selecting and installing a high-voltage motor. The motor selection is more convenient, avoiding the situation where the power of the low-voltage motor installed vertically does not match, and then a single high-voltage motor can be used to meet the power requirements of the equipment, avoiding the problem of difficult adjustment of current consistency caused by the arrangement of dual low-voltage motors, and effectively reducing the power distribution cost.

Description

Technical Field

[0001] The present invention relates to the technical field of crushers, and in particular to a vertical shaft impact crusher and a sand making system. Background Art

[0002] The vertical shaft impact crusher is a common fine crusher in the building materials industry, and is often used for material crushing or shaping. The material enters the rotor assembly through the upper feed hopper, and the rotor assembly ejects the material into the crushing chamber through the circumferentially arranged launch ports for crushing. The vertical shaft impact crusher has a large throughput and a high motor power configuration, usually with a total power of hundreds of kilowatts, and is developing in the direction of large-scale development with increasingly larger power configurations. It generally uses a V-belt drive system.

[0003] High-power V-belt transmission has high cost and low reliability. The current V-belt transmission system has high power configuration, large V-belt consumption, and higher requirements for pulley processing accuracy. In actual applications, a single motor is used for low power and a dual motor is used for high power. Two motors drive a main shaft assembly at the same time, which makes it more difficult to make the current difference between the two motors consistent. The greater the power configuration, the higher the requirements for the V-belt transmission system and the lower the reliability. The tension of the V-belt is difficult to adjust and is easy to burn. The dual-motor layout makes the total volume of the equipment large and occupies a large space. Secondly, due to installation space and installation requirements, only low-voltage motors can be installed vertically, while high-voltage motors cannot be installed. However, high-power low-voltage motors have high manufacturing requirements, and because low-voltage motors need to be equipped with transformers, high-voltage motors can be directly connected to the power supply circuit, with lower power distribution costs. The power distribution cost of using low-voltage motors is higher.

[0004] On the other hand, vertical shaft impact crushers have many vulnerable parts, and how to improve their service life and crushing efficiency is also a major obstacle to their development. Summary of the invention

[0005] The invention provides a vertical shaft impact crusher and a sand making system to solve the technical problems of large volume and high power distribution cost of the existing vertical shaft impact crusher using V-belt transmission and dual motor layout.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A vertical shaft impact crusher, comprising:

[0008] A frame assembly, used as a support;

[0009] The crushing mechanism comprises a crushing chamber mounted on the frame assembly and a rotor assembly disposed in the crushing chamber, wherein the rotor assembly is used to eject materials into the crushing chamber for crushing; the axis of the rotor assembly is arranged vertically;

[0010] A main shaft assembly is arranged vertically and connected to the rotor assembly for transmission;

[0011] The transmission system includes a reducer, a base located below the crushing mechanism, and a motor horizontally installed on the base, the power of the motor matches the vertical shaft impact crusher, the input shaft of the reducer and the output shaft of the reducer are arranged at 90 degrees for reversing transmission; the output end of the motor is connected to the input end of the reducer via a first coupling, and the output end of the reducer is drivingly connected to the main shaft assembly via a second coupling.

[0012] As a further improvement of the above technical solution, the rotor assembly includes:

[0013] A rotor body connected to the main shaft assembly, wherein the rotor body is provided with a first launch port and a second launch port for ejecting materials, wherein the first launch port and the second launch port are radially spaced and distributed on the rotor body to provide different ejection speeds;

[0014] The impact block is used to impact with the material to crush the material. The impact block is installed on the rotor body at a preset angle to impact the impacted material into the crushing chamber.

[0015] As a further improvement of the above technical solution, the first launch ports are symmetrically distributed in pairs on the rotor body, and the second launch ports are symmetrically distributed in pairs on the rotor body.

[0016] As a further improvement of the above technical solution, the rotor assembly also includes a flow channel plate for protecting the rotor body, the flow channel plate is divided into multiple wear zones according to the degree of wear, and the flow channel plate is composed of multiple plates connected to each corresponding to the wear zone.

[0017] As a further improvement of the above technical solution, a mounting plate for mounting the impact block is provided on the rotor body, and a mounting groove is provided on the mounting plate in the axial direction; a limiting protrusion is protruded from the mounting surface of the impact block to match the mounting groove; a fixing block is installed on the rotor body to press and fix the impact block on the mounting plate.

[0018] As a further improvement of the above technical solution, positioning protrusions are protruded from the upper edge and the lower edge of the counter-attack block, and the height of the mounting plate matches the distance between the two positioning protrusions of the counter-attack block.

[0019] As a further improvement of the above technical solution, the rotor body is provided with a plurality of groups of impact blocks and a plurality of groups of throwing heads in radially symmetrical distribution along the circumferential direction, and the number of the throwing heads matches the number of the impact blocks.

[0020] As a further improvement of the above technical solution, the main shaft assembly includes a main drive shaft, a bearing sleeved on the main drive shaft, a mounting tube sleeved outside the main drive shaft, and a lower pressure cover arranged at the bottom of the main drive shaft, and the lower pressure cover is provided with an oil return chamber.

[0021] As a further improvement of the above technical solution, a liquid level gauge connected to the oil return chamber is provided on one side of the lower pressure cover.

[0022] According to another aspect of the present invention, there is also provided a sand making system, which is applied with any of the vertical shaft impact crushers described above.

[0023] The present invention has the following beneficial effects: the main shaft assembly of the vertical shaft crusher is installed vertically, the motor is installed horizontally on a base below the crushing mechanism, the reducer is installed on the base, the reduction ratio of the reducer meets the use requirements of the equipment, and the input shaft and output shaft of the reducer are arranged at 90 degrees, the motor is connected to the reducer input shaft through the first coupling for power reversal to the output shaft and connected to the main shaft assembly through the second coupling; the use of a universal transmission shaft transmission is more reliable and has a longer service life than the existing V-belt transmission method, and can effectively reduce the radial force of the main shaft assembly and improve the main shaft assembly The force distribution of the main shaft and the motor shaft can be improved, thereby increasing the life of the main shaft assembly and the motor; the motor is installed horizontally, so it is suitable for selecting and installing a high-voltage motor, which makes motor selection more convenient and avoids the power mismatch of the low-voltage motor installed vertically. A single high-voltage motor can be used to meet the power demand of the equipment, avoiding the problem of difficult adjustment of current consistency caused by the arrangement of dual low-voltage motors, and effectively reducing the power distribution cost; compared with the existing vertical shaft crusher, the vertical shaft crusher of this structure has the same equipment height and width, and the equipment length is significantly reduced, the structure is more compact, and the space occupancy is reduced.

[0024] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 It is a schematic diagram of the structure of an existing vertical shaft crusher;

[0027] Figure 2 is a cross-sectional view of a vertical shaft crusher according to a preferred embodiment of the present invention;

[0028] Figure 3is a front view of a vertical shaft crusher according to a preferred embodiment of the present invention;

[0029] Figure 4 is a top view of a vertical shaft crusher according to a preferred embodiment of the present invention;

[0030] Figure 5 is a side view of a vertical shaft crusher according to a preferred embodiment of the present invention;

[0031] Figure 6 is a schematic diagram of the transmission system structure of a preferred embodiment of the present invention;

[0032] Figure 7 is a cross-sectional view of a rotor assembly of a preferred embodiment of the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the counterattack block of a preferred embodiment of the present invention;

[0034] Fig. 9 is a schematic diagram of the rotor assembly structure of a preferred embodiment of the present invention;

[0035] Fig.10 is a cross-sectional view of a main shaft assembly of a preferred embodiment of the present invention;

[0036] Fig.11 is a top view of a rotor assembly according to a preferred embodiment 1 of the present invention;

[0037] 1. Bracket 2. Crushing chamber 3. Rotor assembly 31. Rotor body 32. Impact block 33. Plate 36. Distributor cone 37. Wedge block 38. Throwing head 39. Fixed block 4. Main shaft assembly 41. Lower pressure cover 42. Mounting cylinder 43. Main transmission shaft 44. Bearing 45. Liquid level gauge 5. Base 6. Lid opening device 7. Transmission system 71. Motor 72. First coupling 73. Speed ​​reducer 74. Second coupling 75. Base 8. Shock-absorbing pad DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] Reference Figures 1 to 10 The preferred embodiment of the present invention provides a vertical shaft impact crusher, comprising:

[0040] The frame assembly is used as a support; it includes a bracket 1 and a base 5;

[0041] The crushing mechanism comprises a crushing chamber 2 mounted on a frame assembly and a rotor assembly 3 disposed in the crushing chamber 2. The rotor assembly 3 is used to eject materials into the crushing chamber 2 for crushing. The axis of the rotor assembly 3 is arranged vertically.

[0042] The main shaft assembly 4 is arranged vertically and connected to the rotor assembly 3 for transmission;

[0043] The transmission system 7 includes a reducer 73, a base 75 located below the crushing mechanism, and a motor 71 horizontally installed on the base 75. The power of the motor 71 matches the vertical shaft impact crusher. The input shaft of the reducer 73 and the output shaft of the reducer 73 are arranged at 90 degrees for reversing transmission. The output end of the motor 71 is connected to the input end of the reducer 73 via a first coupling 72, and the output end of the reducer 73 is drivingly connected to the main shaft assembly 4 via a second coupling 74.

[0044] Among them, the rotor assembly 3 is located above the main shaft assembly 4, the crushing chamber 2 is connected to the base 5 by bolts, the base 5 is installed on the bracket 1 through the shock-absorbing pad 8, the main shaft assembly 4 is installed on the base 5, and the outer periphery of the crushing chamber 2 is installed with a cover opening device 6, which is used to connect the first coupling 72 and the second coupling 74 with the hopper and other mechanisms. Preferably, a universal transmission shaft is used; the working principle of the vertical shaft crusher of this embodiment can be realized by referring to the existing technology. After the material is put into the crushing mechanism through the top of the equipment, the high-speed rotating rotor assembly 3 rotates and ejects part of the material to collide and crush it, and the material is output from the bottom and then recycled and put into the top for crushing and sand making;

[0045] It can be understood that the main shaft assembly 4 of the vertical shaft crusher is installed vertically; the motor 71 is installed horizontally on the base 75 located below the crushing mechanism, and the reducer 73 is installed on the base 75. The reduction ratio of the reducer 73 meets the equipment use requirements and the input shaft and output shaft of the reducer 73 are arranged at 90 degrees. The motor 71 is connected to the input shaft of the reducer 73 through the first coupling 72 for power reversing to the output shaft and connected to the main shaft assembly 4 through the second coupling 74; the use of a universal transmission shaft transmission is more reliable and has a longer service life than the existing V-belt transmission method, and can effectively reduce the radial force of the main shaft assembly 4 and improve the main shaft assembly. The force distribution of the main shaft assembly 4 and the motor 71 shaft is improved, thereby increasing the life of the main shaft assembly 4 and the motor 71; the motor 71 is installed horizontally, so it is suitable for selecting and installing a high-voltage motor 71, and the selection of the motor 71 is more convenient, avoiding the power mismatch of the vertically installed low-voltage motor 71, and then a single high-voltage motor 71 can be used to meet the power demand of the equipment, avoiding the problem of difficult adjustment of current consistency caused by the arrangement of two low-voltage motors 71, and effectively reducing the power distribution cost; compared with the existing vertical shaft crusher, the vertical shaft crusher of this structure has the same equipment height and width, and the equipment length is significantly reduced, the structure is more compact, and the space occupancy is reduced.

[0046] In this embodiment, the rotor assembly 3 includes:

[0047] The rotor body 31 is connected to the main shaft assembly 4. The rotor body 31 is provided with a first launching port and a second launching port for ejecting materials. The first launching port and the second launching port are radially spaced and distributed on the rotor body 31 to provide different ejection speeds.

[0048] The impact block 32 is used to collide with the material to crush the material. The impact block 32 is installed on the rotor body 31 at a preset angle to impact the impacted material into the crushing chamber 2.

[0049] Compared with the existing structure in which the launch ports are evenly arranged around the circumference, the first launch port and the second launch port of the rotor assembly 3 of this embodiment are at different distances from the axis of the rotor assembly 3. The material ejection speed of the first launch port arranged near the outer side of the rotor body 31 is higher than the material ejection speed of the second launch port near the inner side of the rotor body 31. The two groups of launch ports can eject two groups of material flows at different speeds. In addition to colliding with the impact block 32 and impacting into the crushing chamber 2 to produce collision and crushing, the two groups of material flows also produce violent collisions due to the speed difference, thereby accelerating the crushing speed of the material and greatly improving energy utilization and work efficiency.

[0050] The first launch ports are symmetrically distributed in pairs on the rotor body 31, and the second launch ports are symmetrically distributed in pairs on the rotor body 31, so that the two groups of materials with different speeds are ejected more evenly during the operation of the rotor assembly 3, thereby improving the material crushing efficiency.

[0051] In this embodiment, a mounting plate for mounting the impact block 32 is provided on the rotor body 31, and a mounting groove is opened in the axial direction of the mounting plate; a mounting surface of the impact block 32 is protruded to form a limiting protrusion for matching the mounting groove; a fixing block 39 for pressing and fixing the impact block 32 on the mounting plate is installed on the rotor body 31; specifically, the impact block 32 is installed on the rotor body 31 by embedding the limiting protrusion into the mounting groove, and the mounting groove can limit the movement of the impact block 32, and further by installing the fixing block 39 on the rotor body 31, the impact block 32 is pressed against the rotor body 31 on the working surface of the impact block 32, thereby completing the installation and fixation of the impact block 32; through the structural restriction positioning and the combination of the card block positioning method, the difficulty of disassembly and assembly caused by the impact block 32 fixed by bolts is avoided, and the problem of long disassembly and assembly time affecting work efficiency due to the fast wear and high replacement frequency of the impact block 32 is effectively solved;

[0052] Furthermore, positioning protrusions are formed on the upper edge and the lower edge of the counter-attack block 32, and the height of the mounting plate matches the distance between the two positioning protrusions of the counter-attack block 32, thereby providing assembly positioning and axially limiting the installed counter-attack block 32 to prevent movement. Through the matching structure of the limiting protrusion and the mounting groove, the matching structure of the positioning protrusion and the mounting plate, and the setting of the fixing block 39, portable installation is completed while realizing multi-degree-of-freedom restrictions on the counter-attack block 32.

[0053] In this embodiment, the rotor assembly 3 also includes a dividing cone 36 and a flow plate for protecting the rotor body 31. The flow plate is divided into a plurality of wear zones according to the degree of wear. The wear zones are divided according to the different degrees of wear of each zone during actual use of the flow plate in the prior art. The flow plate of this embodiment is composed of a plurality of plates 33 connected to each corresponding to each wear zone. The material is input from the hopper of the equipment to the crushing mechanism and then divided by the dividing cone 36. Part of the material is divided by the flow plate to each launch port for ejection and crushing. The flow plate is used to guide the material and prevent the rotor body 31 from being worn. After the material is input into the crushing mechanism, the wear of each area on the flow plate is not the same. In this embodiment, the flow plate is divided into a plurality of wear zones in combination with the wear condition of the flow plate in the existing equipment. The flow plate is designed to be spliced ​​by a plurality of plates 33. The corresponding plates 33 can be replaced individually according to the wear condition during use without the need for overall replacement, thereby reducing costs.

[0054] The rotor body 31 is provided with slots corresponding to the plates 33 , and the plates 33 are connected to the rotor body 31 for replacement. A wedge 37 is installed on the rotor body 31 to fix the plates 33 .

[0055] In this embodiment, the main shaft assembly 4 includes a main transmission shaft 43, a bearing 44 sleeved on the main transmission shaft 43, a mounting tube 42 sleeved outside the main transmission shaft 43, and a lower pressure cover 41 arranged at the bottom of the main transmission shaft 43. The lower pressure cover 41 is provided with an oil return chamber for returning oil to ensure that the main shaft assembly 4 is in good working condition.

[0056] Furthermore, a liquid level gauge 45 connected to the oil return chamber is provided on one side of the lower gland 41. The liquid level gauge 45 is used to observe the oil return condition inside the lower gland 41, thereby ensuring the normal operation of the lubrication system.

[0057] On the other hand, a sand making system is also provided, which is applied with the vertical shaft crusher of this embodiment.

[0058] Embodiment 1

[0059] In this embodiment, reference Fig.11, a plurality of groups of impact blocks 32 and a plurality of groups of throwing heads 38 are arranged on the rotor body 31 in a radially symmetrical distribution along the circumferential direction, and the number of throwing heads 38 matches that of the impact blocks 32. Specifically, three groups of identical symmetrical structures are evenly distributed on the circumference of the rotor body 31 of this embodiment, and the rotor assembly 3 can rotate clockwise or counterclockwise to avoid damage to the rotor assembly 3 caused by the wrong direction of the motor 71. In addition, the flow channel plate of this embodiment is further designed as three groups of plates 33, and each group of plates 33 is radially symmetrically distributed. When the wearing parts corresponding to one rotation direction (impact blocks 32, flow channel plates) are severely worn, the equipment can be reversed, thereby reducing the frequency of equipment repair and maintenance, extending the equipment startup time, and improving the utilization rate of wearing parts.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vertical shaft impact crusher, characterized in that: include: A frame assembly, used as a support; The crushing mechanism comprises a crushing chamber (2) mounted on the frame assembly and a rotor assembly (3) arranged in the crushing chamber (2), wherein the rotor assembly (3) is used to eject materials into the crushing chamber (2) for crushing; the axis of the rotor assembly (3) is arranged vertically; A main shaft assembly (4) is arranged vertically and connected to the rotor assembly (3) for transmission; A transmission system (7) comprises a reducer (73), a base (75) located below the crushing mechanism, and a motor (71) mounted horizontally on the base (75); the power of the motor (71) matches that of the vertical shaft impact crusher; the input shaft of the reducer (73) and the output shaft of the reducer (73) are arranged at 90 degrees for reversing transmission; the output end of the motor (71) is connected to the input end of the reducer (73) via a first coupling (72); the output end of the reducer (73) is drivingly connected to the main shaft assembly (4) via a second coupling (74); The rotor assembly comprises a rotor body (31) connected to the main shaft assembly (4); a first launching port and a second launching port for ejecting materials are arranged on the rotor body (31); the first launching port and the second launching port are radially spaced and distributed on the rotor body (31) to provide different ejection speeds; the rotor assembly also comprises an impact block (32) for colliding with materials to crush the materials; the impact block (32) is installed on the rotor body (31) at a preset angle to counter-attack the impacted materials into the crushing chamber (2); The rotor body (31) is provided with a plurality of groups of impact blocks (32) distributed in a radially symmetrical manner along the circumferential direction, and a plurality of groups of material throwing heads (38) distributed in a radially symmetrical manner along the circumferential direction, wherein the number of the material throwing heads (38) matches the number of the impact blocks (32).

2. The vertical shaft impact crusher according to claim 1, characterized in that: The first launching ports are symmetrically distributed in pairs on the rotor body (31), and the second launching ports are symmetrically distributed in pairs on the rotor body (31).

3. The vertical shaft impact crusher according to claim 1, characterized in that: The rotor assembly (3) further comprises a flow channel plate for protecting the rotor body (31), wherein the flow channel plate is divided into a plurality of wear zones according to the degree of wear, and the flow channel plate is composed of a plurality of plate members (33) respectively connected to each of the wear zones.

4. The vertical shaft impact crusher according to claim 1, characterized in that: The rotor body (31) is provided with a mounting plate for mounting the impact block (32), and a mounting groove is provided on the mounting plate in the axial direction; a mounting surface of the impact block (32) is protruding to form a limiting protrusion for matching with the mounting groove; and a fixing block (39) for pressing and fixing the impact block (32) on the mounting plate is installed on the rotor body (31).

5. The vertical shaft impact crusher according to claim 4, characterized in that: Positioning protrusions are protruded from the upper edge of the counter-attack block (32) and the lower edge of the counter-attack block (32), and the height of the mounting plate matches the distance between the two positioning protrusions of the counter-attack block (32).

6. The vertical shaft impact crusher according to claim 1, characterized in that: The main shaft assembly (4) comprises a main transmission shaft (43), a bearing (44) sleeved on the main transmission shaft (43), a mounting cylinder (42) sleeved outside the main transmission shaft (43), and a lower pressure cover (41) arranged at the bottom of the main transmission shaft (43), wherein the lower pressure cover (41) is provided with an oil return chamber.

7. The vertical shaft impact crusher according to claim 6, characterized in that: A liquid level gauge (45) communicating with the oil return chamber is provided on one side of the lower pressure cover (41).

8. A sand making system, characterized in that: The invention relates to a vertical shaft impact crusher according to any one of claims 1 to 7.

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