Crushing and screening all-in-one machine with adjustable tooth roller spacing
By adding adjustment pads and adjustment screws to the crushing and screening integrated machine, the adjustable spacing between the screening roller and the crushing roller is achieved, which solves the problem of equipment blockage, improves adaptability and processing volume selectivity, and ensures the smooth operation of the equipment.
Patent Information
- Application Number
- CN202422222589.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-09-11
AI Technical Summary
In the existing crushing and screening integrated machine, the spacing between the screening roller and the crushing roller is fixed, which leads to the equipment being easily blocked when the particle size of the raw coal increases or the processing volume increases.
By adding an adjustment pad between the screen chassis and the crusher chassis, and changing the distance between the two boxes by adjusting the screw rotation, thereby adjusting the gap between the screen roller and the crusher roller, the adjustable screening channel is achieved.
It solves the problem of blockage in the crushing and screening machine, improves the adaptability and processing volume selectivity of the equipment, makes the operation more convenient and fast, and ensures the smooth and reliable operation of the equipment.
Smart Images
Figure CN222930881U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a crushing and screening integrated machine with adjustable spacing between toothed rollers, belonging to the technical field of fully-mechanized mining equipment for underground coal mine working faces. Background Art
[0002] Crushers are widely used in the fields of ore dressing, building materials, iron and steel, road and bridge, and chemical industry, etc., and are mainly used for crushing massive hard materials. The crushing and screening integrated machine has many advantages such as simple manufacture, convenient maintenance, low energy consumption, high efficiency, small over-crushing amount, and uniform product particle size. Cooperating with equipment such as a self-advancing tail, it can adapt to various harsh working conditions such as uneven undulation of the fully-mechanized mining face floor, and has become an indispensable important equipment for supporting the shearer and the conveyor to realize intelligent fully-mechanized mining. The self-advancing tail cooperates with the belt conveyor to be used for the rapid pushing and correct lapping of the conveyor and the belt conveyor in the underground working face, meeting the needs of high progress and rapid advancement of the working face.
[0003] The existing crushing and screening integrated machine is composed of a crushing roller, a screening roller and an outer connecting box body. The whole set of equipment straddles the self-advancing tail, and the hydraulic cylinder pulls the rollers on both sides of the box body, enabling the equipment to move back and forth along the guide rail on the self-advancing tail. According to different processing capacities, one set of crushing rollers can be equipped with one set or two sets of screening rollers. During operation, after the shearer lifts the cut raw coal to a certain height through the conveyor, it is sent to the screening section of the crushing and screening integrated machine. The large pieces of raw coal cannot pass through the gaps between the two continuously rotating screening rollers or between the screening roller and the crushing roller, and are deflected by the screening roller to the middle of the two crushing rollers, and are crushed by the two crushing rollers. The small pieces of raw coal pass through the gaps between the two screening rollers or between the screening roller and the crushing roller and fall onto the belt in the middle of the self-advancing tail, and are combined with the raw coal crushed by the crushing roller and transported out of the crushing and screening integrated machine. Since the screening roller is added before the crushing roller, the crushing and screening integrated machine can pre-screen the small pieces in the raw coal, greatly reducing the over-crushing rate of the raw coal, and at the same time greatly improving the processing capacity of the equipment, enabling the processing capacity of a single device to reach more than 4500T per hour.
[0004] However, for the existing crushing and screening integrated machine equipped with one set or two sets of screening rollers, the spacing between the screening rollers or between the screening roller and the crushing roller is fixed, that is, the size of the passage for the screening roller to screen small pieces of raw coal is fixed. In this case, if the proportion of small-grained raw coal mined by the crushing and screening integrated machine is relatively large or the hourly processing capacity is increased, too many small pieces of raw coal cannot pass through the gaps between the two screening rollers or between the screening roller and the crushing roller for screening in time. A small part of them is pushed to the middle of the two crushing rollers for over-crushing, and most of them will gradually accumulate on the screening roller, causing the crushing and screening integrated machine to be blocked, greatly affecting the processing capacity and normal operation of the equipment. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a crushing and screening integrated machine with adjustable tooth roll spacing. An adjusting cushion plate is added between the screening machine box body or between the screening machine box body and the crusher box body, and the spacing between the screening rolls or between the screening rolls and the crushing rolls is adjusted by a lead screw, so that the passage for screening small pieces of raw coal by the screening rolls is increased. This not only completely solves the blockage problem of the crushing and screening integrated machine, but also makes the single crushing and screening integrated machine have a wider adaptability in the selection of processing capacity. The operation of adjusting the spacing between the tooth rolls is more convenient and fast, thus solving the above problems existing in the background technology.
[0006] The technical solution of the utility model is as follows:
[0007] A crushing and screening integrated machine with adjustable tooth roll spacing includes an adjusting cushion plate, an adjusting lead screw, a right-handed cover plate, a left-handed cover plate, a screening machine box body and a crusher box body. The screening machine box body and the crusher box body are arranged from right to left. A screening roll is arranged in the screening machine box body to match the crushing roll in the crusher box body; a right-handed cover plate and a left-handed cover plate are respectively installed on the left inner side of the screening machine box body and the right inner side of the crusher box body. An adjusting lead screw is arranged between the right-handed cover plate and the left-handed cover plate. The two ends of the adjusting lead screw are respectively of left-handed and right-handed thread structures. The right-handed thread at one end is connected to the right-handed cover plate through the through hole of the screening machine box body, and the left-handed thread at the other end is connected to the left-handed cover plate through the through hole of the crusher box body; a plurality of vertically arranged adjusting cushion plates are arranged on the adjusting lead screw. When the adjusting lead screw rotates forward and backward, the distance between the screening machine box body and the crusher box body can be conveniently adjusted, so as to change the gap between the screening roll in the screening machine box body and the crushing roll in the crusher box body, achieving the purpose of adjusting the size of the passage for the screening roll to screen small pieces of raw coal.
[0008] Furthermore, the adjusting lead screw, the right-handed cover plate and the left-handed cover plate are installed between the screening machine box body and the crusher box body. The adjusting cushion plate is inserted from the outside of the screening machine box body and the crusher box body. The adjusting lead screw is tightened to make the screening machine box body and the crusher box body close to each other and clamp the adjusting cushion plate. Finally, the screening machine box body, the crusher box body and the adjusting cushion plate are firmly fixed with fastening bolts.
[0009] Furthermore, after the spacing of the screening roll is adjusted, the screening machine box body and the crusher box body are fixed to the following self-propelled shearer tail frame with bolts.
[0010] Furthermore, an adjusting lead screw notch is provided on the adjusting cushion plate, and the adjusting lead screw passes through the adjusting lead screw notch. The adjusting lead screw notch is convenient for inserting the adjusting cushion plate from the outside between the screening machine box body and the crusher box body.
[0011] Furthermore, a weight-reducing hole is provided on the adjusting cushion plate to reduce the overall weight of the adjusting cushion plate.
[0012] Furthermore, a plurality of notches are also provided on the adjusting cushion plate to avoid the bolts between the screening machine box body and the crusher box body.
[0013] A tooth roll spacing adjustable crushing and screening integrated machine, comprising an adjusting cushion plate, an adjusting lead screw, a right-handed cover plate, a left-handed cover plate, a screening machine box body and a crusher box body. The screening machine box body and the crusher box body are arranged from right to left. Two screening rolls are arranged in the screening machine box body and are matched with the crushing roll in the crusher box body. The two screening rolls are respectively arranged in the left box body and the right box body in the screening machine box body. The right-handed cover plate and the left-handed cover plate are respectively installed on the inner sides of the left box body and the right box body between the two screening rolls. An adjusting lead screw is arranged between the right-handed cover plate and the left-handed cover plate. The two ends of the adjusting lead screw are respectively of left and right-handed thread structures. The right-handed thread at one end is connected with the right-handed cover plate through the through hole of the right box body, and the left-handed thread at the other end is connected with the left-handed cover plate through the through hole of the left box body. A plurality of vertically arranged adjusting cushion plates are arranged on the adjusting lead screw. When the adjusting lead screw rotates forward and backward, the distance between the left box body and the right box body in the screening machine box body can be conveniently adjusted, so as to change the gap between the two screening rolls in the screening machine box body, and the purpose of adjusting the size of the passage for screening small-sized raw coal by the screening rolls is achieved.
[0014] Further, the adjusting lead screw, the right-handed cover plate and the left-handed cover plate are installed between the left box body and the right box body in the screening machine box body. The adjusting cushion plate is inserted from the outside between the left box body and the right box body of the screening machine box body. The adjusting lead screw is tightened to make the left box body and the right box body of the screening machine box body close to each other and clamp the adjusting cushion plate. Finally, the left box body, the right box body and the adjusting cushion plate are firmly fixed with fastening bolts.
[0015] Further, after the spacing of the screening rolls is adjusted, the screening machine box body and the crusher box body are fixed to the following self-propelled shearer tail frame with bolts.
[0016] Further, the adjusting cushion plate is provided with an adjusting lead screw notch, and the adjusting lead screw passes through the adjusting lead screw notch. The adjusting lead screw notch is convenient for inserting the adjusting cushion plate from the outside between the left box body and the right box body of the screening machine box body.
[0017] Further, the adjusting cushion plate is provided with weight-reducing holes to reduce the overall weight of the adjusting cushion plate.
[0018] Further, the adjusting cushion plate is also provided with a plurality of notches for avoiding the bolts between the left box body and the right box body.
[0019] The beneficial effects of the present utility model are as follows: On the basis of the original box frame of the integrated crushing and screening machine, by adding a plurality of adjusting pads between two screening machine boxes or a single screening machine box and the crusher box, rotating the adjusting screw rod will change the distance between the two boxes, thereby increasing the gap between two screening rollers or a single screening roller and the crushing roller, achieving the purpose of increasing the passage for screening small-sized raw coal by the screening roller. This not only completely solves the blockage problem of the integrated crushing and screening machine, enabling the integrated crushing and screening machine to operate stably and reliably, but also makes the single integrated crushing and screening machine have a wider adaptability in the selection of processing capacity, and the operation of adjusting the distance between the toothed rollers is more convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 FIG. 1 is a schematic structural diagram of Embodiment 1 of the present utility model;
[0021] Figure 2 FIG. 2 is a schematic side view of the structure of Embodiment 2 of the present utility model;
[0022] Figure 3 FIG. 3 is a schematic diagram of the adjustment structure of the present utility model;
[0023] Figure 4 FIG. 4 is a schematic diagram of the adjusting pad of the present utility model;
[0024] Figure 5 FIG. 5 is a schematic diagram of the adjusting screw rod of the present utility model;
[0025] In the figures: adjusting pad 1, adjusting screw rod 2, right-handed cover plate 3, left-handed cover plate 4, screening machine box 5, crusher box 6, adjusting screw rod notch 7, weight reduction hole 8. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] The present utility model will be further described below with reference to the accompanying drawings through embodiments.
[0027] Refer to the attached Figure 1 、 3, 4 and 5, Example 1, A crushing and screening integrated machine with adjustable tooth roll spacing, comprising an adjusting shim 1, an adjusting screw 2, a right-handed cover plate 3, a left-handed cover plate 4, a screening machine box 5 and a crusher box 6. The screening machine box 5 and the crusher box 6 are arranged from right to left. A screening roll is arranged in the screening machine box 5 and is matched with the crushing roll in the crusher box 6. The right-handed cover plate 3 and the left-handed cover plate 4 are respectively installed on the left inner side of the screening machine box 5 and the right inner side of the crusher box 6. The adjusting screw 2 is arranged between the right-handed cover plate 3 and the left-handed cover plate 4. The two ends of the adjusting screw 2 are respectively of left-handed and right-handed thread structures. The right-handed thread at one end is connected to the right-handed cover plate 3 through the through hole of the screening machine box 5, and the left-handed thread at the other end is connected to the left-handed cover plate 4 through the through hole of the crusher box 6. A plurality of vertically arranged adjusting shims 1 are arranged on the adjusting screw 2. When the adjusting screw 2 rotates forward and backward, the distance between the screening machine box 5 and the crusher box 6 can be conveniently adjusted, so as to change the gap between the screening roll in the screening machine box 5 and the crushing roll in the crusher box 6, and achieve the purpose of adjusting the size of the passage for screening small pieces of raw coal by the screening roll.
[0028] The adjusting screw 2, the right-handed cover plate 3 and the left-handed cover plate 4 are installed between the screening machine box 5 and the crusher box 6. The adjusting shim 1 is inserted from the outside of the screening machine box 5 and the crusher box 6. The adjusting screw 2 is tightened to make the screening machine box 5 and the crusher box 6 close and clamp the adjusting shim 1, and the screening machine box 5, the crusher box 6 and the adjusting shim 1 are fixed firmly through fastening bolts.
[0029] After the spacing of the screening roll is adjusted, the screening machine box 5 and the crusher box 6 are fixed to the following self-propelled shearer tail frame with bolts.
[0030] Refer to the appendix Figure 4 , The adjusting shim 1 is provided with an adjusting screw notch 7, and the adjusting screw 2 passes through the adjusting screw notch 7. The adjusting screw notch 7 is convenient for inserting the adjusting shim 1 from the outside between the screening machine box 5 and the crusher box 6.
[0031] Refer to the appendix Figure 4 , The adjusting shim 1 is provided with a weight-reducing hole 8 to reduce the overall weight of the adjusting shim 1.
[0032] Refer to the appendix Figure 4 , The adjusting shim 1 is also provided with a plurality of notches for avoiding the bolts between the screening machine box 5 and the crusher box 6.
[0033] Refer to the appendix Figure 2 、 3, 4 and 5, Embodiment 2, a crushing and screening integrated machine with adjustable tooth roll spacing, comprising an adjusting shim 1, an adjusting screw 2, a right-handed cover plate 3, a left-handed cover plate 4, a screening machine housing 5 and a crusher housing 6. The screening machine housing 5 and the crusher housing 6 are arranged from right to left. Two screening rolls are arranged in the screening machine housing 5 and are matched with the crushing roll in the crusher housing 6. The two screening rolls are respectively arranged in the left and right boxes in the screening machine housing 5. The right-handed cover plate 3 and the left-handed cover plate 4 are respectively installed on the inner sides of the left and right boxes between the two screening rolls. The adjusting screw 2 is arranged between the right-handed cover plate 3 and the left-handed cover plate 4. The two ends of the adjusting screw 2 are respectively left and right-handed thread structures. The right-handed thread at one end is connected to the right-handed cover plate 3 through the through hole of the right box, and the left-handed thread at the other end is connected to the left-handed cover plate 4 through the through hole of the left box. A plurality of vertically arranged adjusting shims 1 are arranged on the adjusting screw 2. When the adjusting screw 2 is rotated forward and backward, the distance between the left and right boxes in the screening machine housing 5 can be conveniently adjusted, so as to change the gap between the two screening rolls in the screening machine housing 5, and the purpose of adjusting the size of the passage for screening small raw coal by the screening rolls is achieved.
[0034] The adjusting screw 2, the right-handed cover plate 3 and the left-handed cover plate 4 are installed between the left and right boxes in the screening machine housing 5. The adjusting shim 1 is inserted from the outside between the left and right boxes of the screening machine housing 5. The adjusting screw 2 is tightened to make the left and right boxes of the screening machine housing 5 approach and clamp the adjusting shim 1, and the left box, the right box and the adjusting shim 1 are fixed firmly through the fastening bolts.
[0035] After the spacing of the screening rolls is adjusted, the screening machine housing 5 and the crusher housing 6 are fixed to the following self-propelled shearer tail frame with bolts.
[0036] Refer to the appendix Figure 4 , an adjusting screw notch 7 is provided on the adjusting shim 1, and the adjusting screw 2 passes through the adjusting screw notch 7. The adjusting screw notch 7 is convenient for inserting the adjusting shim 1 from the outside between the left and right boxes of the screening machine housing 5.
[0037] Refer to the appendix Figure 4 , a weight-reducing hole 8 is provided on the adjusting shim 1 to reduce the overall weight of the adjusting shim 1.
[0038] Refer to the appendix Figure 4 , a plurality of notches are also provided on the adjusting shim 1 to avoid the bolts between the left and right boxes.
Claims
1. A crushing and screening machine with adjustable tooth roller spacing, characterized in that: The invention comprises an adjustment pad (1), an adjustment screw (2), a right-handed cover plate (3), a left-handed cover plate (4), a screening machine housing (5) and a crushing machine housing (6), wherein the screening machine housing (5) and the crushing machine housing (6) are arranged from right to left, a screening roller is arranged in the screening machine housing (5) to match the crushing roller in the crushing machine housing (6); the right-handed cover plate (3) and the left-handed cover plate (4) are respectively installed on the left inner side of the screening machine housing (5) and the right inner side of the crushing machine housing (6). A left-handed cover plate (4) and a right-handed cover plate (3) are provided between the left-handed cover plate (4). The two ends of the adjusting screw (2) are left-handed and right-handed thread structures respectively. The right-handed thread at one end is connected to the right-handed cover plate (3) through a through hole of a screening machine housing (5), and the left-handed thread at the other end is connected to the left-handed cover plate (4) through a through hole of a crusher housing (6). A plurality of vertically arranged adjustment pads (1) are provided on the adjusting screw (2).
2. The integrated crushing and screening machine with adjustable tooth roller spacing according to claim 1, characterized in that: The adjusting screw (2) and the right-handed cover plate (3) and the left-handed cover plate (4) are installed between the screening machine housing (5) and the crushing machine housing (6). The adjusting pad (1) is inserted from the outside of the screening machine housing (5) and the crushing machine housing (6). The adjusting screw (2) is tightened to bring the screening machine housing (5) and the crushing machine housing (6) closer together and clamp the adjusting pad (1). The screening machine housing (5), the crushing machine housing (6) and the adjusting pad (1) are firmly fixed by tightening bolts.
3. A crushing and screening machine with adjustable tooth roller spacing, characterized in that: The invention comprises an adjustment pad (1), an adjustment screw (2), a right-rotating cover plate (3), a left-rotating cover plate (4), a screening machine housing (5) and a crushing machine housing (6). The screening machine housing (5) and the crushing machine housing (6) are arranged from right to left. Two screening rollers are arranged in the screening machine housing (5) to match the crushing roller in the crushing machine housing (6); the two screening rollers are respectively arranged in the left housing and the right housing of the screening machine housing (5); the inner side of the left housing and the inner side of the right housing between the two screening rollers are A right-handed cover plate (3) and a left-handed cover plate (4) are respectively installed inside the box body; an adjusting screw (2) is arranged between the right-handed cover plate (3) and the left-handed cover plate (4); both ends of the adjusting screw (2) are left-handed and right-handed thread structures; the right-handed thread at one end is connected to the right-handed cover plate (3) through a through hole of the right box body, and the left-handed thread at the other end is connected to the left-handed cover plate (4) through a through hole of the left box body; and a plurality of vertically arranged adjusting pads (1) are arranged on the adjusting screw (2).
4. The integrated crushing and screening machine with adjustable tooth roller spacing according to claim 3 is characterized in that: The adjusting screw (2) and the right-handed cover plate (3) and the left-handed cover plate (4) are installed between the left case and the right case in the screening machine case (5). The adjusting pad (1) is inserted from the outside between the left case and the right case of the screening machine case (5). The adjusting screw (2) is tightened to bring the left case and the right case of the screening machine case (5) closer together and clamp the adjusting pad (1). The left case, the right case and the adjusting pad (1) are fixed firmly by tightening bolts.