Hovering scraper device for cleaning accumulated material on a slide plate

Abstract

The utility model discloses a kind of material-accumulating plate accumulated material cleaning can hover scraper device, including scraper assembly, telescopic component and two connecting rod components;Telescopic component is fixed in movable frame bottom, its bottom end is connected with scraper assembly, telescopic component is through inside shrink and lift scraper assembly, and can be reset by spring in telescopic component;Two connecting rod components are symmetrically set on the left and right two sides outer wall of movable frame, its bottom side is connected with telescopic component to drive telescopic component to shrink, its top side is extended to movable frame outside along transverse, and is abutted by external structure, drive two connecting rod components drive telescopic component to shrink;The device realizes that accumulated material cleaning device of material-accumulating plate is lifted to hover operation to scraper in non-operation time, reduce the influence of accumulated material cleaning on green ball material flow on material-accumulating plate, and it is simple lightweight design scheme for structure;And the improved mode does not increase new driving component, avoid the influence of the complexity of device caused by newly added weight and kinetic energy supply.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary facilities for pellet production, and in particular to a hovering scraper device for cleaning accumulated material on a chute. Background Technology

[0002] During pellet production, green pellets are discharged from the disc pelletizer and fall onto a chute, rolling along the chute into the conveyor belt. During transfer, the green pellets fall from the conveyor belt back onto the chute and then into a roller screen. After screening, the green pellets pass through the chute into the chain grate. Because green pellets contain moisture and have low strength, loose material may stick and accumulate on the chute during operation, affecting the flow of green pellets and compromising their strength. Therefore, timely cleaning of the accumulated material on the chute is necessary.

[0003] Currently, chute material cleaning devices utilize a combination of oscillation and movement to drive an assembly with a scraper fixed at the bottom to scrape away accumulated material on the chute. To ensure complete cleaning, the scraper blade must remain in contact with the chute. However, since the material accumulation on the chute is not continuous, after cleaning a section, the scraper needs to wait for the device to move to the next area to be cleaned; this period is the non-operating time. Considering that the scraper's contact with the chute inevitably affects the flow of green pellets on the chute, raising the scraper and suspending it in mid-air during non-operating time would reduce this impact.

[0004] Because the chute has a large working surface and the chute material cleaning device has a long arm, directly adding a drive component to the existing scraper structure would significantly increase the complexity of the cleaning device due to the added weight and power supply. Therefore, it is necessary to improve the existing scraper assembly with a lightweight drive structure to enable the scraper to be raised and suspended during non-operational periods. Utility Model Content

[0005] The purpose of this invention is to provide a suspended scraper device for cleaning accumulated material on a chute, which solves the above-mentioned problems.

[0006] Therefore, the technical solution of this utility model is as follows:

[0007] A suspended scraper device for cleaning accumulated material on a chute includes a scraper assembly, a telescopic assembly, and two connecting rod assemblies mounted on a movable frame. The telescopic assembly includes a lifting rod, a movable sleeve, and a fixed sleeve. The lifting rod is vertically positioned and its bottom is fixedly connected to the scraper assembly. The movable sleeve is fitted onto the outside of the lifting rod with an annular gap, and the two are fixedly connected at their bottom sides. The lower side of the fixed sleeve is fitted onto the outside of the lifting rod and is movably inserted into the annular gap. The upper side of the fixed sleeve passes through and is fixed to the bottom plate of the movable frame, and its top has an open end plate with an adjusting nut fixed thereon. (The last sentence appears to be incomplete and possibly refers to a different device.) The screw's bottom end is threaded into the adjusting nut and passes through the end plate opening to the inside of the fixed sleeve; a top block is fixed to the bottom end of the hand-tightening screw, and a spring connects the top block and the lifting rod; two connecting rod assemblies are symmetrically arranged on the left and right outer walls of the movable frame; the connecting rod assembly includes a long connecting rod, a short connecting rod, and a right-angle connecting rod; the right-angle connecting rod is set with its right-angle vertex facing upwards and is rotatably connected to the movable frame; the short connecting rod and the long connecting rod are arranged vertically, with the top end of the short connecting rod hinged to the rear end of the right-angle connecting rod and the bottom end hinged to the top end of the long connecting rod; the bottom end of the long connecting rod is hinged to the top side of the movable sleeve.

[0008] Furthermore, the scraper assembly includes a scraper and a scraper retainer; the scraper retainer has a scraper slot at its bottom, so that the scraper is inserted and fixed in the scraper slot with the blade pointing vertically downward.

[0009] Furthermore, the top side of the movable sleeve is provided with an annular boss, and multiple bolt blind holes are evenly distributed along the circumferential direction on the side wall of the annular boss, so that the bottom end of the long connecting rod is hinged to any two symmetrically arranged bolt blind holes, thereby making the relative installation direction of the scraper assembly adjustable.

[0010] Furthermore, a strip-shaped through hole is provided on the body of the long connecting rod, and at least two pins are inserted into the strip-shaped through hole. The multiple pins are vertically fixed to the outer wall of the movable frame in an up-and-down spacing manner to guide the long connecting rod to move vertically up and down.

[0011] Furthermore, a top wheel is rotatably installed on the front end of each of the two right-angle connecting rods. The outer edge of the top wheel is located outside the rod end, and the front end of the right-angle connecting rod abuts against the outer structure through the top wheel and rolls vertically along the wall of the outer structure.

[0012] Furthermore, a connecting flange is provided on the outer wall of the fixed sleeve, and the connecting flange is fixed to the bottom surface of the movable frame by bolts evenly distributed along the circumference.

[0013] Compared with existing technologies, this suspended scraper device for cleaning accumulated material on a chute enables the scraper to be raised and suspended during non-operating hours, reducing the impact of accumulated material cleaning on the flow of raw pellets on the chute. It is also a simple and lightweight design. Furthermore, since this improvement does not add any new drive components, it avoids the impact on the complexity of the device caused by the addition of weight and power supply. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the suspended scraper device for cleaning accumulated material on the chute of this utility model, which is set on the movable frame.

[0015] Figure 2 This is a partial structural diagram of the suspended scraper device for cleaning accumulated material on a chute, which is set on a movable frame according to the present invention.

[0016] Figure 3 This is a schematic diagram of the installation structure of the suspended scraper device for cleaning accumulated material on the chute of this utility model on the material cleaning device for the chute;

[0017] Figure 4 This is a partially enlarged schematic diagram showing the installation method of the suspended scraper device for cleaning accumulated material on the chute of this utility model. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the following embodiments are by no means intended to limit the present invention.

[0019] See Figure 1 and Figure 2 The suspended scraper device for cleaning accumulated material on the chute is connected to the movable component 17 and is specifically installed on the movable frame 171 of the movable component 17; specifically, the device includes a scraper assembly, a telescopic assembly and two connecting rod assemblies.

[0020] The scraper assembly includes a scraper 1 and a scraper fixing member 2; wherein, the scraper fixing member 2 is composed of an upper connecting part and a lower connecting part, the upper connecting part has an upper connecting hole, and the bottom of the lower connecting part has a scraper slot; the scraper 1 is arranged with the blade vertically downward, its top end is inserted into the scraper slot, and it is detachably fixed to the scraper fixing member 2 by two bolts that are spaced apart.

[0021] The telescopic assembly includes a lifting rod 3, a movable sleeve 5, a fixed sleeve 7, a spring 16, a top block 15, and a hand screw 13.

[0022] The lifting rod 3 is vertically arranged, and a connecting hole is opened at its bottom end. The bottom end of the lifting rod 3 is fixedly connected to the upper connecting part of the scraper fixing part 2 by bolts passing through the connecting hole and the upper connecting hole. The movable sleeve 5 is a cylindrical body with an annular boss on the top side. Its inner diameter is larger than the outer diameter of the lifting rod 3, so that the movable sleeve 5 is sleeved on the outside of the lifting rod 3 with an annular gap. At the same time, the two are fixedly connected by first fixing bolts 4 that are vertically inserted into the movable sleeve 5 and the side wall of the movable sleeve 3 in sequence. In order to reduce the weight of the movable sleeve 5, it is preferable that a through groove is also symmetrically opened on its bottom side.

[0023] The fixed sleeve 7 is a cylindrical body with an end plate on its top side. Its outer diameter is smaller than the inner diameter of the movable sleeve 5, and its inner diameter is larger than the outer diameter of the lifting rod 3. The lower side of the fixed sleeve 7 is fitted onto the outside of the lifting rod 3 and is movably inserted into the aforementioned annular space gap. Thus, the lifting rod 3 and the movable sleeve 5 reciprocate relative to the fixed sleeve 7 using the annular space gap. In order to connect the fixed sleeve 7 to the bottom of the movable frame 171, a connecting flange is provided on the upper outer wall of the fixed sleeve 7. Correspondingly, a through hole is opened on the bottom plate of the movable frame 171, so that the top side of the fixed sleeve 7 extends into the movable frame 171 through the through hole. The connecting flange of the fixed sleeve 7 is fixed to the bottom surface of the movable frame 171 by multiple bolts evenly distributed along the circumference.

[0024] A through hole is provided at the center of the end plate of the fixed sleeve 7, and an adjusting nut 14 coaxially arranged with the through hole is welded and fixed at the edge of the through hole, so that the bottom end of the hand screw 13 is threaded into the adjusting nut 14 and can be rotated to pass through the inside of the fixed sleeve 7; the top block 15 is set inside the fixed sleeve 7, and its top end is fixed to the bottom end of the hand screw 13, so that the relative position of the top block 15 inside the fixed sleeve 7 can be adjusted by adjusting the length of the bottom end of the hand screw 13 screwed into the fixed sleeve 7; the spring 16 is set inside the fixed sleeve 7, and it is vertically arranged with its top end fixed to the bottom of the top block 15 and its bottom end fixed to the top of the lifting rod 3.

[0025] In practical applications, when the hand-tightening bolt 13 is screwed down to increase the length into the fixing sleeve 7, the top block 15 moves down accordingly, increasing the compression of the spring 16; when the hand-tightening bolt 13 is screwed up to decrease the length into the fixing sleeve 7, the top block 15 moves up accordingly, decreasing the compression of the spring 16.

[0026] Two linkage assemblies are symmetrically arranged on the left and right outer walls of the movable frame 171; each linkage assembly includes a long link 8, a short link 9, and a right-angle link 10; the right-angle link 10 is attached to the outer wall of the movable frame 171 with its right-angle vertex facing upward, and is rotatably connected to the movable frame 171 by a screw 12 passing through the right-angle vertex; the short link 9 and the long link 8 are arranged vertically from top to bottom; the top end of the short link 9 is hinged to the rear end of the right-angle link 10, and its bottom end is hinged to the top end of the long link 8; the bottom end of the long link 8 is hinged to the annular boss sidewall on the top side of the movable sleeve 5 by a second fixing bolt 6.

[0027] As a preferred technical solution of this embodiment, multiple bolt blind holes are evenly distributed along the circumferential direction on the side wall of the annular boss of the movable sleeve 5, so that the bottom end of the long connecting rod 8 is fixed in any one or two bolt blind holes symmetrically arranged on the side wall of the annular boss by the second fixing bolt 6, so that the relative installation direction of the scraper 1 is adjustable.

[0028] To ensure that the long connecting rod 8 in the linkage assembly reciprocates in the vertical direction, a strip-shaped through hole is provided on the rod body of the long connecting rod 8, and two pins are inserted in the strip-shaped through hole. The two pins are vertically fixed to the outer wall of the movable frame 171 on the corresponding side in an alternating manner to form a guide structure to ensure that the long connecting rod 8 moves up and down in a vertical position.

[0029] As a preferred technical solution of this embodiment, a top wheel 11 is rotatably provided on the inner side of the front end of each of the two right-angle connecting rods 10. The outer edge of the top wheel 11 is located on the outer side of the rod end, so that the front end of the right-angle connecting rod 10 abuts against the outer structure through the top wheel 11 and rolls vertically along the wall of the outer structure.

[0030] See Figure 3In practical applications, the hovering scraper device 20 is installed on the chute material accumulation cleaning device. Specifically, the chute material accumulation cleaning device includes a sliding assembly 17, a long arm 18, a chain assembly 19, a traveling assembly 21, a second drive mechanism 22, and a first drive mechanism 23. The first drive mechanism 23 is located at one end of the long arm 18 and drives the long arm 18 to reciprocate on the chute. The traveling assembly 21 is located at the other end of the long arm 18 to provide support and assist the long arm in its swinging motion on the chute. The chain assembly 19 is mounted on the long arm 18 and employs a chain drive mechanism. The chain, which is set along the length of the long arm 18, is driven to rotate by the second drive mechanism 22. The sliding component 17 is sleeved on the outside of the long arm 18 and fixedly connected to the chain so as to reciprocate along the length of the long arm 18 by means of the chain rotation drive. The hovering scraper device 20 is set at the bottom of the sliding frame 171 of the sliding component 17, and its scraper blade abuts against the chute plate. During the swinging process of the long arm 18 and the sliding process of the sliding component 17, the sliding component 17 synchronously drives the hovering scraper device 20 to move to the designated position of the chute plate, so as to use the scraper to clean the accumulated material on the chute plate.

[0031] See Figure 4 The working principle of the suspended scraper device for cleaning accumulated material on the chute is described below.

[0032] During the material cleaning process, the hovering scraper device 20 moves back and forth relative to the long arm 18 with the sliding component 17; in this state, the bottom blade of the scraper 1 rests against the chute plate.

[0033] After the accumulated material is cleared, the hovering scraper device 20 returns to the standby position, specifically located next to the traveling assembly 21. Specifically, during the process of the hovering scraper device 20 moving to the side of the traveling assembly 21, the front ends of the two right-angle connecting rods 10 of the two linkage assemblies first abut against the mounting frame of the traveling assembly 21 via the top wheel 11. Then, as the distance further shortens, the top wheel 11 rolls downward on the side wall of the mounting frame, and the right-angle connecting rods 10 rotate counterclockwise, driving the short rod 9 and the long rod 8 to move upward. At this time, the lifting rod 3 and the movable sleeve 5 move upward relative to the fixed sleeve 7, and the scraper 1 is lifted to separate from the chute. Since the spring 16 inside the fixed sleeve 7 is compressed during the above process, when the hovering scraper device 20 leaves the standby position and starts working, under the action of the spring 16, the lifting rod 3 and the movable sleeve 5 will drive the scraper 1 to return to the state of abutting against the chute, and at the same time, the two linkage assemblies also return to their positions, and the spring 16 returns to its original position.

Claims

1. A hovering scraper device for cleaning accumulated material on a chute, characterized in that, The system includes a scraper assembly, a telescopic assembly, and two connecting rod assemblies mounted on the movable frame. The telescopic assembly includes a lifting rod (3), a movable sleeve (5), and a fixed sleeve (7). The lifting rod (3) is vertically positioned and its bottom is fixedly connected to the scraper assembly. The movable sleeve (5) is fitted onto the outside of the lifting rod (3) with an annular gap, and the two are fixedly connected at their bottom sides. The fixed sleeve (7) is fitted onto the outside of the lifting rod (3) at its bottom side and is movably inserted into the annular gap. The upper side of the fixed sleeve (7) is inserted through and fixed to the bottom plate of the movable frame, and its top has an open end plate with an adjusting nut (14) fixed thereon. The bottom end of the hand screw (13) is threaded into the adjusting nut (14) and passes through... The end plate has an opening that extends into the inside of the fixed sleeve (7); a top block (15) is fixed at the bottom of the hand screw (13), and a spring (16) is connected between the top block (15) and the lifting rod (3); two connecting rod assemblies are symmetrically arranged on the outer walls of the left and right sides of the movable frame; the connecting rod assembly includes a long connecting rod (8), a short connecting rod (9) and a right-angle connecting rod (10); the right-angle connecting rod (10) is set with its right-angle vertex facing upward and is rotatably connected to the movable frame; the short connecting rod (9) and the long connecting rod (8) are set vertically, with the top of the short connecting rod (9) hinged to the rear end of the right-angle connecting rod (10) and the bottom end hinged to the top of the long connecting rod (8); the bottom end of the long connecting rod (8) is hinged to the top side of the movable sleeve.

2. The suspended scraper device for cleaning accumulated material on a chute according to claim 1, characterized in that, The scraper assembly includes a scraper (1) and a scraper fixing member (2); the scraper fixing member (2) has a scraper slot at the bottom, so that the scraper (1) is inserted and fixed in the scraper slot with the blade vertically downward.

3. The suspended scraper device for cleaning accumulated material on a chute according to claim 1, characterized in that, The top side of the movable sleeve (5) is provided with an annular boss, and multiple bolt blind holes are evenly distributed along the circumferential direction on the side wall of the annular boss, so that the bottom end of the long connecting rod (8) is hinged to any two bolt blind holes that are symmetrically arranged, so that the relative installation direction of the scraper assembly can be adjusted.

4. The suspended scraper device for cleaning accumulated material on a chute according to claim 1, characterized in that, A strip-shaped through hole is provided on the body of the long connecting rod (8), and at least two pins are inserted in the strip-shaped through hole. Multiple pins are vertically fixed to the outer wall of the movable frame in an up-and-down interval manner to guide the long connecting rod (8) to move vertically up and down.

5. The suspended scraper device for cleaning accumulated material on a chute according to claim 1, characterized in that, A top wheel (11) is rotatably installed on the front end of each of the two right-angle connecting rods (10). The outer edge of the top wheel (11) is located outside the rod end, and the front end of the right-angle connecting rod (10) abuts against the outer structure through the top wheel (11) and rolls vertically along the wall of the outer structure.

6. The suspended scraper device for cleaning accumulated material on a chute according to claim 1, characterized in that, The outer wall of the fixed sleeve (7) is provided with a connecting flange, which is fixed to the bottom surface of the movable frame by bolts evenly distributed along the circumference.

Images