Synchronous lifting mechanism and coal leveling device

Abstract

The utility model relates to the technical field of coal leveling equipment, in particular to a synchronous lifting mechanism and a coal leveling device. The synchronous lifting mechanism comprises a lifting frame, a first driving assembly and a rope set. The lifting frame is slidably arranged on the main body frame; a first lifting point and a second lifting point are respectively arranged at the lower ends of the left and right sides of the lifting frame; a first reversing wheel set and a second reversing wheel set are arranged at the upper end of the left side of the lifting frame, and a third reversing wheel set is arranged at the upper end of the right side; the rope group comprises a first connecting rope and a second connecting rope; the first driving assembly is located at the left lower end of the lifting frame; one end of the first connecting rope is connected with the first driving assembly, and the other end is wound on the first reversing wheel set and connected with the first lifting point; one end of the second connecting rope is connected with the first driving assembly, the other end of the second connecting rope is sequentially wound around the second reversing wheel set and the third reversing wheel set and connected with the second lifting point, and the first driving assembly drives the first connecting rope and the second connecting rope to move synchronously so that the left end and the right end of the lifting frame can move synchronously.

Description

Technical Field

[0001] This utility model relates to the technical field of coal leveling equipment, specifically to a synchronous lifting mechanism and a coal leveler. Background Technology

[0002] Coal trucks are prohibited from spilling coal during transit. Against this backdrop, some regions still rely on manual coal leveling operations, but intelligent coal leveling equipment is gradually emerging. Common coal leveling equipment on the market mainly uses a lifting mechanism composed of trapezoidal screw jacks and a frame-like structure to drive a scraper mechanism to perform the coal leveling work within the truck bed. Typically, trapezoidal screw jacks are installed on both sides of the frame. These jacks are heavy-duty equipment; under heavy loads, insufficient lubrication and inconsistent motor output can lead to inconsistent lifting speeds on both sides, causing serious problems such as frame skewing and guide wheel derailment, threatening the safe operation of the equipment. Utility Model Content

[0003] (I) The problem to be solved by this utility model is that when the trapezoidal screw jacks on both sides of the frame are set under heavy load conditions, the lifting speed on both sides of the frame is inconsistent due to insufficient lubrication, inconsistent motor output, etc., which in turn causes the frame to tilt or the guide wheel to derail.

[0004] (II) Technical Solution

[0005] To solve the above-mentioned technical problems, one embodiment of the present invention provides a synchronous lifting mechanism for a coal leveler, wherein the coal leveler includes a main frame and the synchronous lifting mechanism includes: a lifting frame, a first drive assembly and a rope assembly;

[0006] The lifting frame is slidably mounted on the main frame; the lower ends of the left and right sides of the lifting frame are respectively provided with a first lifting point and a second lifting point; the upper end of the left side of the lifting frame is provided with a first reversing wheel group and a second reversing wheel group, and the upper end of the right side is provided with a third reversing wheel group.

[0007] The rope assembly includes a first connecting rope and a second connecting rope; the first drive assembly is located at the lower left end of the lifting frame; one end of the first connecting rope is connected to the first drive assembly, and the other end is wound around the first reversing wheel assembly and connected to the first lifting point; one end of the second connecting rope is connected to the first drive assembly, and the other end is wound around the second reversing wheel assembly and the third reversing wheel assembly in sequence and connected to the second lifting point; the first drive assembly drives the first connecting rope and the second connecting rope to move synchronously.

[0008] Furthermore, the first connecting rope and the second connecting rope are spaced apart along the front-rear direction of the lifting frame.

[0009] Furthermore, the first reversing wheel assembly includes a first reversing wheel and a second reversing wheel; the first reversing wheel and the second reversing wheel are spaced apart along the left-right direction of the lifting frame, and are also spaced apart along the up-down direction of the lifting frame.

[0010] Furthermore, the first connecting rope and the first lifting point, as well as the second connecting rope and the second lifting point, are connected by length adjusting components.

[0011] Furthermore, multiple rope groups are provided, and all the rope groups are arranged sequentially at intervals along the front and rear direction of the lifting frame, and all the rope groups are connected to the first drive component; the lifting frame is correspondingly provided with the first lifting point, the second lifting point, the first reversing wheel group, the second reversing wheel group and the third reversing wheel group.

[0012] Furthermore, the first drive component is a synchronous electric hoist group corresponding to the rope group, or the first drive component is a synchronous winch group corresponding to the rope group.

[0013] Furthermore, it also includes a fall protection component; the fall protection component is disposed on the main frame, the lifting frame has a first limit position and a second limit position, and the fall protection component is used to connect with the lifting frame when the lifting frame is in the first limit position and / or the second limit position.

[0014] Another embodiment of this utility model provides a coal leveler, including the synchronous lifting mechanism described in any of the above embodiments.

[0015] Furthermore, the coal leveler also includes a scraper mechanism, which is mounted on the synchronous lifting mechanism, and the working width of the scraper mechanism is adjustable.

[0016] Furthermore, it also includes a side cleaning mechanism, which is mounted on the main frame and used to clean the sides of the carriage.

[0017] The beneficial effects of this utility model are:

[0018] This utility model provides a synchronous lifting mechanism for a coal leveler. The coal leveler includes a main frame, and the synchronous lifting mechanism includes a lifting frame, a first drive assembly, and a rope assembly. The lifting frame is slidably mounted on the main frame. A first lifting point and a second lifting point are respectively provided at the lower ends of the left and right sides of the lifting frame. A first reversing wheel assembly and a second reversing wheel assembly are provided at the upper end of the left side of the lifting frame, and a third reversing wheel assembly is provided at the upper end of the right side. The rope assembly includes a first connecting rope and a second connecting rope. The first drive assembly is located at the lower end of the left side of the lifting frame. One end of the first connecting rope is connected to the first drive assembly, and the other end is wound around the first reversing wheel assembly and connected to the first lifting point. One end of the second connecting rope is connected to the first drive assembly, and the other end is wound around the second reversing wheel assembly and the third reversing wheel assembly in sequence and connected to the second lifting point. The first drive assembly drives the first connecting rope and the second connecting rope to move synchronously.

[0019] Since the first drive assembly drives the first connecting rope and the second connecting rope to move synchronously, and the first suspension point connected to the first connecting rope and the second suspension point connected to the second connecting rope are distributed at the left and right ends of the lifting frame, the left and right ends of the lifting frame can move synchronously under the action of the first drive assembly, the first connecting rope and the second connecting rope. Compared with the prior art, it can effectively avoid problems such as jamming caused by the asynchronous movement of the left and right sides of the lifting frame due to lubrication issues and other factors. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the synchronous lifting mechanism and the main frame provided in this embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the synchronous lifting mechanism provided in an embodiment of the present utility model;

[0023] Figure 3 This is a structural diagram of the scraper mechanism and the side-sweeping mechanism.

[0024] Figure 4 This is a schematic diagram of the scraper mechanism, in which... Figure 4 The moving scraper extends out of the receiving space;

[0025] Figure 5This is a schematic diagram of the scraper mechanism, in which... Figure 5 The moving scraper retracts into its accommodating space;

[0026] Figure 6 A schematic diagram of the scraper mechanism from another perspective;

[0027] Figure 7 A structural schematic diagram of the scraper mechanism from a third-person perspective;

[0028] Figure 8 for Figure 7 A cross-sectional view from the perspective of the middle AA (analogous to ...

[0029] Figure 9 A structural schematic diagram of the scraper mechanism from a fourth-person perspective;

[0030] Figure 10 for Figure 9 A cross-sectional view from the perspective of a BB (Black-White) camera.

[0031] Icons: 11-Main frame; 12-Lifting frame; 121-First lifting point; 122-Second lifting point; 123-First reversing wheel assembly; 124-First reversing wheel; 125-Second reversing wheel; 126-Second reversing wheel assembly; 127-Third reversing wheel assembly; 13-Rope assembly; 131-First connecting rope; 132-Second connecting rope; 14-First drive assembly; 15-Length adjusting component; 16-Fall protection assembly;

[0032] 2-Scraper mechanism; 21-Fixed scraper assembly; 211-Accommodation space; 212-Front scraper; 213-Rear scraper; 22-Moving scraper; 231-Drive motor; 232-Gear; 233-Rack; 241-Second guide rail; 242-Second guide wheel assembly; 243-Guide slide; 244-First guide rail; 245-First guide wheel assembly;

[0033] 3-Side cleaning mechanism; 31-Mounting base; 32-Slide bar; 33-Sliding seat; 34-Cleaning component. Detailed Implementation

[0034] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] like Figures 1 to 10As shown, one embodiment of this utility model provides a synchronous lifting mechanism for a coal leveler. The coal leveler includes a main frame 11, and the synchronous lifting mechanism includes a lifting frame 12, a first drive assembly 14, and a rope assembly 13. The lifting frame 12 is slidably mounted on the main frame 11. The lower ends of the left and right sides of the lifting frame 12 are respectively provided with a first lifting point 121 and a second lifting point 122. The upper end of the left side of the lifting frame 12 is provided with a first reversing wheel assembly 123 and a second reversing wheel assembly 126, and the upper end of the right side is provided with a third reversing wheel assembly 127. The rope assembly 13 includes a first... A first connecting rope 131 and a second connecting rope 132 are provided; a first drive assembly 14 is located at the lower left end of the lifting frame 12; one end of the first connecting rope 131 is connected to the first drive assembly 14, and the other end is wound around the first reversing wheel set 123 and connected to the first suspension point 121; one end of the second connecting rope 132 is connected to the first drive assembly 14, and the other end is wound around the second reversing wheel set 126 and the third reversing wheel set 127 in sequence and connected to the second suspension point 122; the first drive assembly 14 drives the first connecting rope 131 and the second connecting rope 132 to move synchronously.

[0036] The synchronous lifting mechanism provided in this embodiment is used in a coal leveler. The coal leveler includes a main frame 11 and a scraper mechanism 2, etc. The scraper mechanism 2 is mounted on the aforementioned synchronous lifting mechanism, which is slidably installed on the main frame 11 and can slide vertically on the main frame 11. The aforementioned synchronous lifting mechanism includes a lifting frame 12, a first drive assembly 14, and a rope assembly 13. The lifting frame 12 is a square frame welded from several steel sections, which is used to support the scraper mechanism 2 used for coal leveling. The lower left and lower right ends of the lifting frame 12 are respectively provided with a first lifting point 121 and a second lifting point 122. The first lifting point 121 and the second lifting point 122 can be formed by opening holes or setting lifting rings, etc. The upper left end of the lifting frame 12 is provided with a first reversing wheel group 123 and a second reversing wheel group 126. The first reversing wheel group 123 and the first lifting point 121 are located in the same vertical plane. The upper right end of the lifting frame 12 is provided with a third reversing wheel group 127. The second reversing wheel group 126, the third reversing wheel group 127 and the second lifting point 122 are located in the same vertical plane. The first drive assembly 14 is fixed on the main frame 11, and the first drive assembly 14 is located below the left side of the lifting frame 12. No matter how the lifting frame 12 is raised or lowered, the first drive assembly 14 is always located below the left side of the lifting frame 12. The aforementioned rope assembly 13 includes a first connecting rope 131 and a second connecting rope 132, both of which are steel wire ropes. One end of the first connecting rope 131 is fixed to the winch of the first drive assembly 14, and the other end extends upward, then extends downward after being reversed by the first reversing pulley group 123, connecting to the first lifting point 121. One end of the second connecting rope 132 is fixed to the winch of the first drive assembly 14, and the other end extends upward, then extends to the right after being reversed by the second reversing pulley group 126, and then extends downward after being reversed by the third reversing pulley group 127, connecting to the second lifting point 122. In use, the first drive assembly 14 drives the first connecting rope 131 and the second connecting rope 132 to move synchronously, thereby enabling the lifting frame 12 to slide up and down on the main frame 11.

[0037] The synchronous lifting mechanism provided in this embodiment enables the first driving component 14 to drive the first connecting rope 131 and the second connecting rope 132 to move synchronously. The first lifting point 121 connected to the first connecting rope 131 and the second lifting point 122 connected to the second connecting rope 132 are distributed at the left and right ends of the lifting frame 12. Therefore, under the action of the first driving component 14, the first connecting rope 131 and the second connecting rope 132, the left and right ends of the lifting frame 12 can move synchronously. Compared with the prior art, it can effectively avoid problems such as jamming caused by the asynchronous movement of the left and right sides of the lifting frame 12 due to lubrication issues and other factors.

[0038] Preferably, the synchronous lifting mechanism provided in this embodiment of the present invention, such as... Figure 1 and Figure 2As shown, the first connecting rope 131 and the second connecting rope 132 are spaced apart along the front and rear direction of the lifting frame 12 to facilitate the arrangement of the first connecting rope 131 and the second connecting rope 132.

[0039] The synchronous lifting mechanism provided in this embodiment of the utility model, such as Figure 1 and Figure 2 As shown, the first reversing wheel group 123 includes a first reversing wheel 124 and a second reversing wheel 125; the first reversing wheel 124 and the second reversing wheel 125 are spaced apart along the left and right directions of the lifting frame 12, and are also spaced apart along the up and down directions of the lifting frame 12.

[0040] In this embodiment, the first reversing wheel 124 and the second reversing wheel 125 are located in the same vertical plane. The horizontal line extending to the right through the center of the first reversing wheel 124 and the vertical line extending downward through the center of the second reversing wheel 125 can intersect at a point and the two lines are perpendicular. The first connecting rope 131 first changes direction through the first reversing wheel 124, and then changes direction through the second reversing wheel 125 before extending downward. After changing direction through the first reversing wheel 124, the first connecting rope 131 can extend horizontally to the right or to the upper right. By arranging the first reversing wheel 124 and the second reversing wheel 125 to change the direction of the first connecting rope 131, the first drive assembly 14 and the lifting frame 12 can be separated by a certain distance, which facilitates the arrangement of the first drive assembly 14 and the lifting frame 12.

[0041] Optionally, in this embodiment, the second reversing wheel group 126 includes a third reversing wheel, and the third reversing wheel group 127 includes a fourth reversing wheel. The first reversing wheel 124, the second reversing wheel 125, the third reversing wheel and the fourth reversing wheel are all fixed pulleys rotatably mounted on the lifting frame 12.

[0042] The synchronous lifting mechanism provided in this embodiment of the utility model, such as Figure 1 and Figure 2 As shown, the first connecting rope 131 and the first lifting point 121, as well as the second connecting rope 132 and the second lifting point 122, are connected by length adjusting members 15.

[0043] Preferably, in this embodiment, connecting the first lifting point 121 and the first connecting rope 131, and connecting the second lifting point 122 and the second connecting rope 132 via the length adjusting member 15, reduces the difficulty of adjusting the rope knots of the first connecting rope 131 and the second connecting rope 132. The aforementioned length adjusting member 15, a fine-tuning bolt, is a fastener used to achieve precise position adjustment. Optionally, the aforementioned length adjusting member 15 can also be a precision lead screw or a flexible coupling, etc.

[0044] The synchronous lifting mechanism provided in this embodiment of the utility model, such as Figure 1 and Figure 2As shown, multiple rope groups 13 are provided, and all rope groups 13 are arranged sequentially at intervals along the front and rear direction of the lifting frame 12, and all rope groups 13 are connected to the first drive assembly 14; the lifting frame 12 is provided with a first lifting point 121, a second lifting point 122, a first reversing wheel group 123, a second reversing wheel group 126 and a third reversing wheel group 127.

[0045] In this embodiment, to improve the stability of the lifting frame 12, multiple rope groups 13 can be provided, and all rope groups 13 are connected to the first drive assembly 14 to avoid problems such as tilting when the lifting frame 12 moves. Each rope group 13 needs to be equipped with a first suspension point 121, a second suspension point 122, a first reversing wheel group 123, a second reversing wheel group 126, and a third reversing wheel group 127. For example, in this embodiment, the synchronous lifting mechanism is configured with two sets of rope groups 13. One set of rope groups 13 is located on the front side of the lifting frame 12, and the other set of rope groups 13 is located on the rear side of the lifting frame 12. The lower ends of the left front side and the left rear side of the lifting frame 12 are provided with first lifting points 121, the lower ends of the right front side and the right rear side are provided with second lifting points 122, the upper ends of the left front side and the upper ends of the left rear side are provided with first reversing wheel groups 123 and second reversing wheel groups 126, and the upper ends of the right front side and the upper ends of the right rear side are provided with third reversing wheel groups 127. The first drive assembly 14 is a synchronous electric hoist assembly composed of two electric hoists; the first connecting rope 131 on the front side is wound around... A first reversing wheel assembly 123 is located at the upper left front side and connected to a first suspension point 121 at the lower left front side. A second connecting rope 132 is wound around the second reversing wheel assembly 126 at the upper left front side and the third reversing wheel assembly 127 at the upper right front side and connected to a second suspension point 122 at the lower right front side. A first connecting rope 131 is wound around the first reversing wheel assembly 123 at the upper left rear side and connected to a first suspension point 121 at the lower left rear side. A second connecting rope 132 is wound around the second reversing wheel assembly 126 at the upper left rear side and the third reversing wheel assembly 127 at the upper right rear side and connected to a second suspension point 122 at the lower right rear side. Preferably, to improve balance, the two rope assemblies 13 are arranged opposite each other, i.e., along the lifting frame 12 from front to back, they are, in sequence, the second connecting rope 132, the first connecting rope 131, and the second connecting rope 132.

[0046] The synchronous lifting mechanism provided in this embodiment of the utility model has a first drive component 14 that is a synchronous electric hoist group corresponding to the rope group 13, or a synchronous winch group corresponding to the rope group 13. The synchronous electric hoist group includes multiple synchronously rotating electric hoists, and the synchronous winch group includes multiple synchronously rotating winches. By using electric hoists or winches to drive the first connecting rope 131 and the second connecting rope 132, the equipment has high operating efficiency, simple structure, and low maintenance workload.

[0047] The synchronous lifting mechanism provided in this embodiment of the utility model, such as Figure 1 As shown, it also includes a fall protection component 16; the fall protection component 16 is disposed on the main frame 11, the lifting frame 12 has a first limit position and a second limit position, and the fall protection component 16 is used to connect with the lifting frame 12 when the lifting frame 12 is in the first limit position and / or the second limit position.

[0048] In this embodiment, the fall arrestor 16 is used to prevent the lifting frame 12 from falling; the highest point of the lifting frame 12 on the main frame 11 is the first extreme position, and the lowest point of the lifting frame 12 on the main frame 11 is the second extreme position; when the lifting frame 12 is in the first extreme position, the fall arrestor 16 is connected to the lifting frame 12 and prevents the lifting frame 12 from falling due to malfunctions or other factors; when the lifting frame 12 is in the second extreme position, the fall arrestor 16 is connected to the lifting frame 12 and prevents the lifting frame 12 from falling due to malfunctions or other factors.

[0049] Optionally, in this embodiment, the fall arrestor 16 can be an electric latch, and the lifting frame 12 is provided with a socket that cooperates with the electric latch; or, the fall arrestor 16 can also be a telescopic tow bar or a tow plate, etc.

[0050] Another embodiment of this utility model provides a coal leveler, including the synchronous upgrading mechanism described in any of the above embodiments.

[0051] The coal leveler provided in this embodiment of the utility model, such as Figures 1 to 10 As shown, the coal leveler also includes a scraper mechanism 2, which is mounted on the synchronous lifting mechanism. The working width of the scraper mechanism 2 is adjustable.

[0052] In this embodiment, the coal leveler includes a connecting frame and a scraper mechanism 2. The connecting frame is slidably mounted on a lifting frame 12, and the sliding direction of the connecting frame on the lifting frame 12 is vertical. The lifting frame 12 is used to increase the stroke of the scraper mechanism 2. Typically, coal transport cars are divided into open wagons and container wagons, which have different widths. To ensure that the scraper mechanism 2 can be compatible with both types of wagons, the working width of the scraper mechanism 2 used for coal leveling is adjustable.

[0053] The coal leveler provided in this embodiment of the utility model, such as Figures 3 to 10 As shown, the scraper mechanism 2 includes a second drive assembly and two movable scrapers 22; the second drive assembly is connected to at least one of the movable scrapers 22 and is used to drive the two movable scrapers 22 to move relative to each other, so as to adjust the working width of the scraper mechanism 2.

[0054] The scraper mechanism 2 described above includes a second drive assembly and two movable scrapers 22. The second drive assembly can be driven to one of the movable scrapers 22 or to both movable scrapers 22 simultaneously. In this embodiment, the latter is preferred. The two movable scrapers 22 are driven to move relative to each other by the second drive assembly, thereby making the working width of the scraper mechanism 2 adjustable so that the scraper mechanism 2 can be adapted to both types of carriages.

[0055] The coal leveler provided in this embodiment of the utility model, such as Figures 3 to 10 As shown, the scraper mechanism 2 also includes a fixed scraper assembly 21; the fixed scraper assembly 21 has a receiving space 211, and two movable scrapers 22 are slidably disposed in the receiving space 211. The second drive assembly drives the two movable scrapers 22 to move along the width direction of the fixed scraper assembly 21, so that the two movable scrapers 22 extend or retract into the receiving space 211.

[0056] In this embodiment, the scraper mechanism 2 further includes a fixed scraper assembly 21, which is fixedly mounted on the connecting frame. The second drive assembly simultaneously drives the two movable scrapers 22 to move, and the fixed assembly drives the two movable scrapers 22 to move towards or away from each other, thereby reducing the time required to adjust the working width of the scraper mechanism 2. The fixed scraper assembly 21 has a receiving space 211, in which the two movable scrapers 22 can be housed, protecting the movable scrapers 22 when they are not in use and preventing coal particles from getting stuck in them, which could cause the movable scrapers 22 to jam during movement. Preferably, the second drive assembly is also located in the receiving space 211 to prevent coal particles from affecting the second drive assembly.

[0057] Furthermore, in this embodiment, the fixed scraper assembly 21 includes a front scraper 212 and a rear scraper 213, which are spaced apart in the front-to-back direction and are both fixed to the connecting frame. The front scraper 212 and the rear scraper 213 cooperate to achieve multi-level leveling, which can improve the leveling efficiency and uniformity. The accommodating space 211 is formed between the front scraper 212 and the rear scraper 213, thereby maximizing the utilization of the internal space of the scraper mechanism 2 and improving the overall integrity of the equipment. Since the accommodating space 211 is located between the front scraper 212 and the rear scraper 213, both ends of the accommodating space 211 are open in the width direction, so the moving scraper 22 can extend or retract into the accommodating space 211 from both ends in the width direction of the accommodating space 211.

[0058] In this embodiment, the width of the fixed scraper assembly 21 is the initial working width of the scraper mechanism 2. The working width of the fixed scraper assembly 21 is set as L1, and the working width of the movable scraper 22 is set as L2. Then, the working width adjustment range L of the scraper mechanism 2 is L1≤L≤L1+2*L2.

[0059] Optionally, in this embodiment, a detachable comb plate is provided below the front scraper 212, the rear scraper 213, and the two movable scrapers 22. The comb plate is used for leveling coal, and can be replaced when the comb plate is severely worn.

[0060] The coal leveler provided in this novel embodiment, such as Figures 3 to 10 As shown, the scraper mechanism 2 further includes a first guide component for limiting the movement of the scraper 22; and / or; the second drive component includes a drive motor 231, a gear 232 and a rack 233; the gear 232 is located at the output end of the drive motor 231, and the drive motor 231 drives the gear 232 to rotate; the rack 233 is connected to the scraper 22, and the rack 233 meshes with the gear 232; the scraper mechanism 2 further includes a second guide component for limiting the movement of the rack 233.

[0061] In this embodiment, the second driving assembly includes a drive motor 231, a gear 232, and a rack 233. As mentioned above, two movable scrapers 22 are provided, and the second driving assembly simultaneously drives the two movable scrapers 22 to move towards or away from each other. Correspondingly, two racks 233 are also provided, each corresponding to one of the two movable scrapers 22. The movable scrapers 22 are fixedly mounted on their respective racks 233. The drive motor 231 is fixed to the connecting frame, and at least the output shaft of the drive motor 231 is located within the receiving space 211. The gear 232 is located on the output shaft of the drive motor 231. Both racks 233 mesh with the gear 232, and the tooth surfaces of the two racks 233 are arranged opposite each other. The rotation of the drive motor 231 can drive the two racks 233 to move towards or away from each other, thereby achieving the purpose of the second driving assembly driving the two movable scrapers 22 to move towards or away from each other. By using a drive motor 231 in conjunction with gears 232 and racks 233, the structure is simple, low-cost, and highly reliable. It can also drive two moving scrapers 22 to move synchronously, resulting in high adjustment efficiency.

[0062] It is understood that in this embodiment, the second drive component can also be a telescopic cylinder, such as a pneumatic cylinder or a hydraulic cylinder. Each movable scraper 22 is provided with a corresponding telescopic cylinder. The telescopic cylinder can also achieve the purpose of driving the movable scraper 22 to move along the width direction of the fixed scraper component 21 in this embodiment. The telescopic cylinders of the two movable scrapers 22 can be controlled synchronously or independently, depending on the actual usage.

[0063] In this embodiment, in order to ensure the stability of the moving scraper 22 during movement, the scraper mechanism 2 is also provided with a first guide component and / or a second guide component; preferably, the scraper mechanism 2 includes a first guide component and a second guide component in this embodiment.

[0064] The first guide assembly includes a second guide rail 241 and a second guide wheel set 242 corresponding to the movable scraper 22. The second guide wheel set 242 is disposed on the corresponding movable scraper 22. The second guide rail 241 is fixed in the receiving space 211 and extends along the width direction of the fixed scraper assembly 21. The second guide wheel set 242 is slidably connected to the second guide rail 241. The second guide rail 241 and the second guide wheel set 242 cooperate to guide and limit the movable scraper 22, thereby ensuring the stability of the movable scraper 22 when sliding in the receiving space 211, and preventing the scraper mechanism 2 from malfunctioning due to the large load on the movable scraper 22 during coal leveling operations. The second guide wheel set 242 includes a second wheel frame and multiple second guide wheels. The second guide wheels are rotatably disposed on the second wheel frame and arranged along the width direction of the second wheel frame. The second guide wheel set 242 is provided on both sides of the movable scraper 22 in the front and rear directions. The second guide rail 241 has an elongated structure and is correspondingly and fixed to the front scraper 212 and the rear scraper 213, specifically the side of the front scraper 212 opposite to the rear scraper 213 and the side of the rear scraper 213 opposite to the front scraper 212. The second guide rail 241 is shared by the second guide wheel assemblies 242 on the same side of the two moving scrapers 22 to reduce costs and facilitate layout.

[0065] The second guiding component includes a guide slide 243 corresponding to the rack 233. The guide slide 243 is fixed within the receiving space 211 and extends along the width direction of the fixed scraper assembly 21. The rack 233 is slidably disposed within the corresponding guide slide 243. The guide slide 243 is used to limit the rack 233. The guide slide 243 is located within the receiving space 211 and is fixedly connected to the aforementioned connecting frame. The guide slide 243 extends along the width direction of the fixed scraper assembly 21. By limiting the rack 233 with the guide slide 243, the stability of the rack 233 when sliding within the receiving space 211 can be ensured, and the retractable scraper mechanism 2 can be prevented from malfunctioning due to excessive load on the moving scraper 22 during coal leveling operations. The guide slide 243 can be a U-shaped structure, which can cover the three sides of the rack 233 without teeth; however, since the rack 233 also needs to be connected to the movable scraper 22, in order to increase the connection area between the rack 233 and the movable scraper 22, thereby increasing the connection strength between the rack 233 and the scraper, the guide slide 243 in this embodiment is preferably an L-shaped structure, which cooperates with the top surface and the side away from the teeth of the rack 233 to limit the rack 233, and the bottom surface of the rack 233 is connected to the movable scraper 22.

[0066] The second guide assembly also includes a first guide rail 244 and a first guide wheel set 245 corresponding to the rack 233; the first guide wheel set 245 is disposed on the corresponding rack 233; the first guide rail 244 is fixed in the accommodating space 211 and extends along the width direction of the fixed scraper assembly 21; the first guide wheel set 245 is slidably connected to the first guide rail 244.

[0067] In this embodiment, the second guide assembly includes a first guide rail 244 and a first guide wheel set 245. The first guide wheel set 245 is connected to the corresponding rack 233. The upper end of the first guide wheel set 245 is connected to the lower end of the rack 233 to avoid affecting the engagement between the rack 233 and the guide slide 243. The lower end of the first guide wheel set 245 is connected to the movable scraper 22. The first guide wheel set 245 is slidably connected to the first guide rail 244. Through the engagement of the first guide wheel set 245 and the first guide rail 244, the stability of the rack 233 when sliding within the accommodating space 211 can be ensured, and the retractable scraper mechanism 2 can be prevented from malfunctioning due to excessive load on the movable scraper 22 during coal leveling operations.

[0068] In this embodiment, the first guide rail 244 is preferably an H-beam, thus having two oppositely arranged grooves. The first guide rail 244 is located within the receiving space 211, and its upper end face is fixedly connected to the connecting frame. The first guide wheel assembly 245 includes a first wheel frame and multiple first guide wheels. The first guide wheels are arranged in two rows along the height direction of the first wheel frame, with multiple first guide wheels in each row. The first guide wheels in each row are arranged along the width direction of the first wheel frame, and all first guide wheels are rotatably mounted on the first wheel frame. One row of first guide wheels is located within the aforementioned grooves, while the other row of first guide wheels engages with the lower end face of the first guide rail 244. Since two racks 233 are provided, the two first guide wheel assemblies 245 directly connected to the racks 233 can share one first guide rail 244, thereby reducing costs and facilitating arrangement. Preferably, in this embodiment, to further improve the stability of the rack 233, each rack 233 is provided with two sets of first guide wheel sets 245. One set of first guide wheel sets 245 is directly connected to the rack 233, and the other set of first guide wheel sets 245 is connected to the movable scraper 22. The two sets of guide wheel sets are arranged opposite to each other and both cooperate with the first guide rail 244. By limiting the rack 233 with the two sets of first guide wheel sets 245, the stability of the rack 233 can be greatly improved.

[0069] The coal leveler provided in this embodiment of the utility model, such as Figure 3 As shown, it also includes a side cleaning mechanism 3, which is mounted on the main frame 11 and is used to clean the sides of the carriage.

[0070] In this embodiment, the side cleaning mechanism 3 is located at both ends of the scraper mechanism 2 in the width direction, specifically at the end of the movable scraper 22, for cleaning the short sides of the car body to prevent coal from spilling from the sides. The side cleaning mechanism 3 includes a mounting base 31, a sliding base 33, and a cleaning component 34. The mounting base 31 is fixed to the end of the movable scraper 22, and a sliding rod 32 is provided on the mounting base 31, which can slide vertically on the mounting base 31. The sliding base 33 is fixed to the lower part of the sliding rod 32, and the cleaning component 34 is fixed to the sliding base 33. The sliding base 33 is used to contact the side of the car body, and preferably, the lower surface of the sliding base 33 is provided with rollers. The cleaning component 34 includes two cleaning scrapers, which are fixed to the sliding base 33 and arranged in a ">" shape to push the coal on the side of the car body into the car body. Optionally, the cleaning component 34 can also be electric, etc.

[0071] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0072] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0073] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A synchronous lifting mechanism for a coal leveler, the coal leveler comprising a main frame (11), characterized in that, The synchronous lifting mechanism includes: a lifting frame (12), a first drive assembly (14), and a rope assembly (13); The lifting frame (12) is slidably mounted on the main frame (11); the lower ends of the left and right sides of the lifting frame (12) are respectively provided with a first lifting point (121) and a second lifting point (122); the upper end of the left side of the lifting frame (12) is provided with a first reversing wheel group (123) and a second reversing wheel group (126), and the upper end of the right side is provided with a third reversing wheel group (127); The rope assembly (13) includes a first connecting rope (131) and a second connecting rope (132); the first drive assembly (14) is located at the lower left side of the lifting frame (12); one end of the first connecting rope (131) is connected to the first drive assembly (14), and the other end is wound around the first reversing wheel assembly (123) and connected to the first lifting point (121); one end of the second connecting rope (132) is connected to the first drive assembly (14), and the other end is wound around the second reversing wheel assembly (126) and the third reversing wheel assembly (127) in sequence and connected to the second lifting point (122); the first drive assembly (14) drives the first connecting rope (131) and the second connecting rope (132) to move synchronously.

2. The synchronous lifting mechanism according to claim 1, characterized in that, The first connecting rope (131) and the second connecting rope (132) are spaced apart along the front and rear direction of the lifting frame (12).

3. The synchronous lifting mechanism according to claim 1, characterized in that, The first reversing wheel assembly (123) includes a first reversing wheel (124) and a second reversing wheel (125); the first reversing wheel (124) and the second reversing wheel (125) are spaced apart along the left and right directions of the lifting frame (12), and are also spaced apart along the up and down directions of the lifting frame (12).

4. The synchronous lifting mechanism according to claim 1, characterized in that, The first connecting rope (131) is connected to the first lifting point (121) and the second connecting rope (132) is connected to the second lifting point (122) by length adjusting member (15).

5. The synchronous lifting mechanism according to any one of claims 1 to 4, characterized in that, Multiple rope groups (13) are provided, and all rope groups (13) are arranged sequentially at intervals along the front and rear direction of the lifting frame (12), and all rope groups (13) are connected to the first drive component (14); the lifting frame (12) is provided with the first lifting point (121), the second lifting point (122), the first reversing wheel group (123), the second reversing wheel group (126) and the third reversing wheel group (127).

6. The synchronous lifting mechanism according to claim 5, characterized in that, The first drive component (14) is a synchronous electric hoist group corresponding to the rope group (13), or the first drive component (14) is a synchronous winch group corresponding to the rope group (13).

7. The synchronous lifting mechanism according to claim 1, characterized in that, It also includes a fall arrestor (16); the fall arrestor (16) is disposed on the main frame (11), the lifting frame (12) has a first limit position and a second limit position, and the fall arrestor (16) is used to connect with the lifting frame (12) when the lifting frame (12) is in the first limit position and / or the second limit position.

8. A coal leveler, characterized in that, Includes the synchronous lifting mechanism as described in any one of claims 1 to 7.

9. The coal leveler according to claim 8, characterized in that, The coal leveler also includes a scraper mechanism (2), which is mounted on the synchronous lifting mechanism. The working width of the scraper mechanism (2) is adjustable.

10. The coal leveler according to claim 8, characterized in that, It also includes a side cleaning mechanism (3), which is mounted on the main frame (11) and is used to clean the sides of the carriage.

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