Automatic adjusting sweeper for canvas conveying belt

Abstract

The utility model discloses an automatic adjusting sweeper for a canvas conveying belt, which comprises a mounting seat, a scraper and a tensioning device, the scraper is connected with the mounting seat through a rotating shaft, and the rotating shaft is fixedly connected with the scraper; the tensioning device comprises bearing seats, an adjusting rod and a balancing weight, and the bearing seats are located at the two ends of the mounting seat; the two ends of the rotating shaft extend outwards and are connected with the bearing seats; the two adjusting rods are fixedly connected with the two ends of the rotating shaft correspondingly. The adjusting rod is located on the side close to the conveying belt. The balancing weight is arranged on the adjusting rod and is configured to be adjustable along the axial position of the adjusting rod; during use, the scraper is attached to the surface of the conveying belt under the action of the balancing weight and the adjusting rod. According to the sweeper, the scraper is tightly attached to the conveying belt through the self weight of the balancing weight, so that the conveying belt is cleaned, the influence of pollutants such as dust on the sweeper can be effectively avoided, the sweeping effect is guaranteed, and the maintenance requirement is reduced.

Description

Technical Field

[0001] This utility model relates to the field of conveyor belt cleaning technology, specifically to an automatic adjustment and cleaning device for canvas conveyor belts. Background Technology

[0002] Conveyor belt cleaners are mainly classified into mechanical and electric types according to their working principle. They are also classified by structure, including scraper type, rotary type, water spray type, and brush type. Furthermore, they are classified by material, including polyester-ammonia cleaners, nickel-titanium-aluminum alloy cleaners, and alloy rubber cleaners. Canvas conveyor belts use polyester-ammonia cleaners, but these require manual adjustment after a period of use.

[0003] CN 205526456 U discloses a cleaner for a belt conveyor, including a rotating shaft with multiple scrapers fixedly mounted on it by bolts. The rotating shaft is mounted on a vertical plate, which is fixedly mounted on a cleaner mounting plate. A scraper tensioning device is installed between the rotating shaft and the cleaner mounting plate. The tensioning device is a compression spring tensioning device, which achieves automatic compensation and vibration reduction through a spring structure and can maintain a stable contact pressure.

[0004] In dusty environments such as mines, dust and other contaminants can easily enter moving parts such as springs, adjusting nuts, and tie rods, causing springs to jam or lose elasticity. This affects the automatic compensation function, leading to unstable contact pressure between the scraper and the conveyor belt and reduced cleaning efficiency. Therefore, a conveyor belt cleaner suitable for dusty environments such as mines is needed. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides an automatic adjustment and cleaning device for canvas conveyor belts. It converts the weight of the counterweight into automatic clamping of the conveyor belt, eliminating the influence of dust and other contaminants, and greatly improving the stability and service life of the cleaning device.

[0006] Specifically, this utility model is implemented as follows:

[0007] An automatic adjustment and cleaning device for a canvas conveyor belt includes: a mounting base, a scraper, and a tensioning device. The scraper is connected to the mounting base via a rotating shaft, and the rotating shaft is fixedly connected to the scraper. The tensioning device includes:

[0008] Bearing housings are located at both ends of the mounting base; the two ends of the rotating shaft extend outward and are connected to the bearing housings.

[0009] Two adjusting rods are provided, and each is fixedly connected to both ends of the rotating shaft; the adjusting rods are located on the side closer to the conveyor belt;

[0010] A counterweight is mounted on the adjusting rod and is configured to be adjustable along the axial direction of the adjusting rod. In use, the scraper adheres to the surface of the conveyor belt under the action of the counterweight and the adjusting rod.

[0011] Furthermore, the adjusting rod is provided with several positioning holes along the axial direction, and the counterweight is connected to the positioning holes via hooks.

[0012] Furthermore, the adjusting rod is provided with a rack along the axial direction, and the counterweight is detachably connected to the gear through an adjusting assembly, wherein the gear meshes with the rack; the adjusting assembly is used to lock the position of the gear on the rack.

[0013] Furthermore, the adjustment component includes:

[0014] A limiting shaft is connected to the gear and is used to drive the gear to rotate; the counterweight is connected to the limiting shaft.

[0015] A first connecting piece is disposed on one side of the gear, and one end of the limiting shaft is connected to the first connecting piece;

[0016] The second connecting piece is located on the other side of the gear and is connected to the first connecting piece; the other end of the limiting shaft is connected to the second connecting piece.

[0017] A locking unit is used to lock the position of the gear on the rack.

[0018] Furthermore, the locking unit includes:

[0019] A first square hole is provided on the second connecting piece and is adapted to the first square block on the limiting shaft. When the first square block is located in the first square hole, the gear is in a locked state.

[0020] A spring is sleeved on one end of the limiting shaft near the second connecting piece. The limiting shaft is provided with a stop part, and the spring is located between the second connecting piece and the stop part.

[0021] The limiting shaft is provided with a second square block, the gear is provided with a second square hole in the middle, and the position of the limiting shaft in the axial direction is adjustable.

[0022] Furthermore, a mounting groove is provided on the inner side of the second connecting piece, and the spring is located in the mounting groove.

[0023] Furthermore, the rack is an annular rack with dust-blocking components fixed on both sides, which are used to prevent pollutants from entering the rack.

[0024] Furthermore, the dust-blocking component includes:

[0025] Mounting plates are provided on both sides of the rack;

[0026] Dustproof flexible brushes are densely distributed on the mounting plate to prevent contaminants from entering the rack.

[0027] Furthermore, a limiting member is provided at one end of the limiting shaft extending out of the second connecting piece, and a sleeve is provided at the top of the counterweight. The sleeve is fitted onto one end of the limiting shaft extending out of the second connecting piece, so that the counterweight is located between the limiting member and the second connecting piece.

[0028] Furthermore, a handle for rotating the limiting shaft is provided at the end of the limiting shaft away from the second connecting piece.

[0029] The working principle of this utility model:

[0030] In use, a counterweight is installed on the adjusting rod. Under the action of the counterweight's gravity, the scraper is driven to adhere to the conveyor belt. The counterweight and adjusting rod amplify the pressure, increasing the scraping force, thereby cleaning the surface of the conveyor belt with the scraper. The pressure (scraping force) is determined by the position of the counterweight. Depending on different situations, the position of the counterweight on the adjusting rod is adjusted, thereby adjusting the lever arm length and producing different scraping forces.

[0031] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0032] (1) The automatic adjustment cleaner for canvas conveyor belt provided by this utility model uses the weight of the counterweight to make the scraper fit tightly against the conveyor belt, thereby achieving cleaning of the conveyor belt.

[0033] (2) It can effectively solve the impact of dust and other pollutants on the sweeper, ensure the cleaning effect, and reduce maintenance needs.

[0034] (3) The lever arm length can be adjusted by adjusting the position of the counterweight on the adjusting rod, thereby adjusting the pressure of the scraper on the conveyor belt and adapting to different working conditions. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the automatic adjustment and cleaning device for the canvas conveyor belt in Example 1;

[0036] Figure 2 This is a schematic diagram of the operation of the automatic adjustment cleaner for the canvas conveyor belt in Example 1;

[0037] Figure 3 This is a schematic diagram showing the usage status of the automatic adjustment cleaner for the canvas conveyor belt in Example 1;

[0038] Figure 4 This is a schematic diagram of the automatic adjustment and cleaning device for the canvas conveyor belt in Example 2;

[0039] Figure 5 This is a schematic diagram of the adjusting rod in Example 2;

[0040] Figure 6 This is an exploded view of the adjusting rod in Example 2;

[0041] Figure 7 This is a cross-sectional view of the adjustment component in the locked state in Embodiment 2;

[0042] Figure 8 This is a schematic diagram of the adjustment component's operation when the locking state is released in Example 2;

[0043] Figure 9 This is a cross-sectional view of the adjustment component when the locking state is released in Embodiment 2;

[0044] Figure 10 This is a schematic diagram of the state of the counterweight block when it moves in Example 1.

[0045] Figure label:

[0046] 1-Mounting base; 2-Bearing housing; 3-Rotating shaft; 4-Scraper; 5-Adjusting rod; 51-Positioning hole; 52-Rack; 6-Counterweight; 61-Hook; 62-Socket; 7-Conveyor belt; 8-Adjusting assembly; 81-Limiting shaft; 811-First square block; 812-Second square block; 813-Stop; 82-First connecting piece; 83-Second connecting piece; 831-First square hole; 832-Mounting groove; 84-Gear; 841-Second square hole; 85-Spring; 86-Handle; 87-Limiting component; 9-Dustproof component; 91-Mounting plate; 92-Dustproof flexible baffle. Detailed Implementation

[0047] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0048] Example 1

[0049] like Figure 1-3 As shown, this embodiment provides an automatic adjustment cleaner for canvas conveyor belts. It is mounted on the outlet end of the conveyor belt 7 via a mounting base 1. Its scraper 4 has its blades tightly fitted against the conveyor belt 7, scraping off dirt from the conveyor belt 7 to achieve the purpose of cleaning the conveyor belt 7. Specifically, the cleaner is equipped with a tensioning device to ensure that the scraper 4 is in close contact with the conveyor belt 7, thereby ensuring its cleaning effect.

[0050] Specifically, in this embodiment, the tensioning device includes: bearing seats 2, adjusting rods 5, and counterweights 6. Two bearing seats 2 are provided, located at both ends of the rotating shaft 3 of the scraper 4. The two ends of the rotating shaft 3 extend outwards and are coaxially mounted with the bearing seats 2. The bearing seats 2 support the rotating shaft 3, preventing it from bending due to prolonged stress after extending to both sides. Two adjusting rods 5 are provided, located on both sides of the conveyor belt 7, and on the side of the scraper 4 closest to the conveyor belt 7. The two adjusting rods 5 are fixed to both ends of the rotating shaft 3, and the rotating shaft 3 is fixedly connected to the scraper 4. The counterweights 6 are located on the adjusting rods 5. The adjusting rods 5, under the influence of the weight of the counterweights 6, drive the scraper 4 to rotate towards the conveyor belt 7, thereby conforming to the surface of the conveyor belt 7. The pressure of the scraper 4 on the conveyor belt 7 is affected by the size of the counterweight 6 and the length of the lever arm. Therefore, several positioning holes 51 are provided axially on the adjusting rod 5. The counterweight 6 is connected to the positioning holes 51 through the hook 61. By hanging the counterweight 6 to different positioning holes 51, the pressure of the scraper 4 can be adjusted to meet different usage requirements.

[0051] Example 2

[0052] Because the adjustment method of positioning hole 51 has poor precision and is not linear enough, it is easy for the pressure of scraper 4 to be unable to adapt to the conveyor belt 7. In order to improve the pressure adjustment range and precision, such as Figure 4 As shown, this embodiment provides an automatic adjustment cleaner for canvas conveyor belts. The counterweight 6 is adjusted using a gear and rack mechanism and is equipped with a locking component to fix the counterweight 6.

[0053] like Figure 5-9As shown, in this embodiment, an annular rack 52 is provided on the adjusting rod. A gear 84 and an adjusting component 8 are provided inside the rack 52. The gear 84 meshes with the rack 52, and the adjusting component 8 is connected to the gear 84. The adjustment component 8 enables the movement and locking of the gear 84. Specifically, the adjusting component 8 includes: a limiting shaft 81, a first connecting piece 82, a second connecting piece 83, and a locking unit. The first connecting piece 82 and the second connecting piece 83 are respectively disposed on both sides of the rack 52 and are fixedly connected, thereby surrounding the gear 84 between them. The locking unit includes: a first square hole 831, a first square block 811, a spring 85, a second square block 812, and a second square hole 841. Both the first square block 811 and the second square block 812 are mounted on a limiting shaft 81. The first square hole 831 is located on a second connecting piece 83, and the second square hole 841 is located in the middle of a gear 84. The limiting shaft 81 passes through the gear 84, allowing the first square block 811 to be located within the first square hole 831 and the second square block 812 to be located within the second square hole 841, enabling the limiting shaft 81 to move axially. A mounting groove 832 is provided at one end of the second connecting piece 83 near the first connecting piece 82. The mounting groove 832 is coaxial with the first square hole 831 and is used to mount the spring 85. The spring 85 is sleeved on the end of the limiting shaft 81 near the second connecting piece 83. A stop portion 813 is provided on the limiting shaft 81, and the spring 85 is located between the second connecting piece 83 and the stop portion 813.

[0054] A limiting member 87 (bolt) is provided at one end of the limiting shaft 81 extending out of the second connecting piece 83. A sleeve 62 is provided on the top of the counterweight 6. The sleeve 62 is fitted onto one end of the limiting shaft 81 extending out of the second connecting piece 83 and locked with the limiting member 87 (bolt), so that the counterweight 6 is fixed between the limiting member 87 and the second connecting piece 83, thereby realizing the installation of the counterweight 6.

[0055] Furthermore, a handle 86 is provided at the end of the limiting shaft 81 away from the second connecting piece 83 to allow rotation of the limiting shaft 81. Figure 7-10 As shown, when the limiting shaft 81 is pressed and pushed by the handle 86, the spring 85 is compressed. At this time, the first square block 811 disengages from the first square hole 831, while the second square block 812 remains inside the second square hole 841. The limiting shaft 81 is then rotatable. When the limiting shaft 81 rotates, the limiting action of the second square block 812 and the second square hole 841 drives the gear 84 to move along the rack 52. Conversely, when the spring 85 returns to its original position, the first square block 811 enters the first square hole 831, and the second square block 812 remains inside the second square hole 841. At this time, the limiting shaft 81 is locked by the second connecting piece 83 and cannot rotate, thus fixing the gear 84 in its current position.

[0056] Furthermore, to reduce the entry of dust and other contaminants into the gear rack, dust baffles 9 are fixed on both sides of the rack 52. Each dust baffle 9 includes a mounting plate 91 and several flexible dust baffles 92. The mounting plate 91 is used to connect with the edge of the rack 52. The flexible dust baffles 92 are densely distributed on the mounting plate 91 and are arranged in two symmetrical layers. They can be made of flexible materials such as rubber, silicone, and polyurethane, and can bend with the deformation of the contact surface to form a physical barrier, preventing dust, debris, etc. from entering the rack 52. Because they are made of flexible materials, the limiting shaft 81 can pass through the flexible dust baffles 92 during movement, avoiding obstruction of the limiting shaft 81.

[0057] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. An automatic canvas conveyor belt conditioning cleaner comprising: The mounting base (1), scraper (4), and tensioning device are provided. The scraper (4) is connected to the mounting base (1) via a rotating shaft (3), and the rotating shaft (3) is fixedly connected to the scraper (4). The tensioning device comprises: The bearing housing (2) is located at both ends of the mounting base (1); the two ends of the rotating shaft (3) extend outward and are connected to the bearing housing (2); Two adjusting rods (5) are provided and are fixedly connected to both ends of the rotating shaft (3); the adjusting rods (5) are located on the side close to the conveyor belt (7); A counterweight (6) is provided on the adjusting rod (5) and is configured to be adjustable along the axial direction of the adjusting rod (5); in use, the scraper (4) adheres to the surface of the conveyor belt (7) under the action of the counterweight (6) and the adjusting rod (5); The adjusting rod (5) is provided with a rack (52) along the axial direction. The counterweight (6) is detachably connected to the gear (84) through the adjusting assembly (8). The gear (84) meshes with the rack (52). The adjusting assembly (8) is used to lock the position of the gear (84) on the rack (52). The adjustment component (8) includes: The limiting shaft (81) is connected to the gear (84) and is used to drive the gear (84) to rotate. The counterweight (6) is connected to the limiting shaft (81). The first connecting piece (82) is disposed on one side of the gear (84), and one end of the limiting shaft (81) is connected to the first connecting piece (82); The second connecting piece (83) is located on the other side of the gear (84) and is connected to the first connecting piece (82). The other end of the limiting shaft (81) is connected to the second connecting piece (83). A locking unit is used to lock the position of the gear (84) on the rack (52).

2. The automatic canvas belt cleaning device of claim 1, wherein The locking unit includes: The first square hole (831) is provided on the second connecting piece (83) and is adapted to the first square block (811) on the limiting shaft (81). When the first square block (811) is located in the first square hole (831), the gear (84) is in a locked state. A spring (85) is sleeved on one end of the limiting shaft (81) near the second connecting piece (83). The limiting shaft (81) is provided with a stop (813). The spring (85) is located between the second connecting piece (83) and the stop (813). The limiting shaft (81) is provided with a second square block (812), and the gear (84) is provided with a second square hole (841) in the middle. The position of the limiting shaft (81) in the axial direction is adjustable.

3. The automatic adjustment and cleaning device for canvas conveyor belts as described in claim 2, characterized in that, The second connecting piece (83) has an inner mounting groove (832), and the spring (85) is located in the mounting groove (832).

4. The automatic canvas belt cleaning device of claim 1, wherein The rack (52) is an annular rack with dust-blocking components (9) fixed on both sides. The dust-blocking components (9) are used to block pollutants from entering the rack (52).

5. The automatic canvas belt cleaning device of claim 4, wherein, The dustproof component (9) includes: Mounting plates (91) are provided on both sides of the rack (52); Dustproof flexible baffles (92) are densely distributed on the mounting plate (91) to prevent contaminants from entering the rack (52).

6. The canvas conveyor belt automatic adjusting cleaner of claim 1, wherein, The limiting shaft (81) has a limiting member (87) at one end extending from the second connecting piece (83), and a sleeve (62) is provided on the top of the counterweight (6). The sleeve (62) is sleeved on one end of the limiting shaft (81) extending from the second connecting piece (83) so that the counterweight (6) is located between the limiting member (87) and the second connecting piece (83).

7. The canvas conveyor belt automatic adjusting cleaner of claim 1, wherein The end of the limiting shaft (81) away from the second connecting piece (83) is provided with a handle (86) for rotating the limiting shaft (81).

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