Adjusting device of coal plough

Abstract

The utility model relates to the technical field of coal plough adjustment, in particular to an adjusting device of a coal plough, which comprises a coal plough plate and a support roller, when the coal plough works, the coal plough plate is contacted with a feeding belt surface of a conveying belt, and the support roller is contacted with a feeding back surface of the conveying belt. The coal plough comprises a supporting vertical plate and a supporting bottom plate, a vertical sliding groove is formed in the supporting vertical plate, a sliding column is arranged on the vertical sliding groove in a sliding mode, a first electric cylinder is fixedly installed on the supporting vertical plate, and an output shaft of the first electric cylinder is connected with the sliding column; the coal plough body comprises a coal plough frame, a coal plough plate is fixedly installed on one side of the coal plough frame, the other side of the coal plough frame is rotatably installed on a supporting vertical plate with a sliding column as the axis, an installation plate is fixedly installed at the bottom of the coal plough frame and connected with a supporting plate through a telescopic connecting assembly, and the two ends of the connecting assembly are hinged to the installation plate and the supporting plate respectively. The coal plough device solves the technical problem that the coal plough device can automatically adjust the coal plough position according to conveying belts with different heights and thicknesses.

Description

Technical Field

[0001] The utility model relates to the technical field of coal plow adjustment, in particular to an adjustment device for a coal plow. Background Art

[0002] Coal plows are widely used in coal conveying systems. They consist of a drive unit, plowshare, frame, and supporting components. The plowshares plow the coal on the conveyor belt into coal collection boxes on both sides of the conveyor belt. Existing coal plows are fixed structures and can only plow coal on conveyor belts at a fixed height, which has certain limitations.

[0003] The Chinese utility model patent, entitled "Coal Plough Adjustment Device," with publication number CN220412014U, has been published. The patent covers a belt conveyor, a base, a coal plough body, a rocker arm, a pull rod, a drive mechanism, and a buffer assembly. The base spans the upper side of the belt conveyor, and a downward-facing, U-shaped rocker arm is hinged to one side of the base. When the drive mechanism is operating, the upper end of the rocker arm swings right, causing the coal plough body to fall. After the coal plough body contacts the upper surface of the belt conveyor, if the drive mechanism continues to operate, the buffer assembly and the pull rod move relative to each other. The buffer assembly prevents the underside of the coal plough body from being squeezed against the upper surface of the belt conveyor, potentially damaging the belt conveyor. This ensures safety and efficiency.

[0004] However, for conveyor belts of different heights or thicknesses, there will still be a gap between the coal plow body and the conveyor belt, resulting in a decrease in the coal plowing efficiency. Utility Model Content

[0005] The purpose of the present application is to provide an adjustment device for a coal plow, which solves the technical problem of automatically adjusting the coal plow position according to conveyor belts of different heights and thicknesses.

[0006] In order to solve the above technical problems, the solution adopted by this application is as follows:

[0007] A coal plow adjustment device includes a coal plow, wherein the coal plow includes a coal plow plate and a support roller. When the coal plow is working, the coal plow plate contacts the feeding belt surface of the conveyor belt, and the support roller contacts the feeding back surface of the conveyor belt.

[0008] Preferably, the coal plow includes a supporting vertical plate and a supporting bottom plate, the supporting vertical plate is provided with a vertical slide groove, a sliding column is slidably provided on the vertical slide groove, a first electric cylinder is fixedly installed on the supporting vertical plate, and the output shaft of the first electric cylinder is connected to the sliding column; the coal plow body includes a coal plow frame, one side of the coal plow frame is fixedly installed with a coal plow plate, and the other side is rotatably installed on the sliding column, and is rotatably installed on the supporting vertical plate with the sliding column as the axis.

[0009] Preferably, a mounting plate 15 is fixedly mounted on the bottom of the other side of the coal plow frame, and the mounting plate 15 is connected to the support plate through a retractable connecting assembly, wherein both ends of the connecting assembly are hinged to the mounting plate 15 and the support plate respectively.

[0010] Preferably, a coal plow position detection mechanism is provided on the support bottom plate, and the coal plow position detection mechanism includes a support seat, and a vertically movable displacement component is provided on the support seat, and a clamping plate is connected to the top of the displacement component, and a positioning convex plate is provided above the clamping plate, and a contact sensor is fixedly installed on the top surface of the positioning convex plate, and an elastic member is connected between the positioning convex plate and the clamping plate, and the conveyor belt is located between the positioning convex plate and the clamping plate.

[0011] Preferably, a positioning concave plate is provided on the connecting plate, and when the coal plow is working, the positioning concave plate is fitted with the positioning convex plate.

[0012] Preferably, the connecting assembly includes a skateboard, one end of the skateboard is rotatably connected to the connecting plate, and the other end of the skateboard is slidably connected to the connecting groove plate, the sliding direction of the skateboard is consistent with the length direction of the connecting groove plate, and the connecting groove plate is rotatably mounted on the support plate at one end away from the skateboard, and a third electric cylinder is fixedly mounted on the connecting groove plate, and a fixed block is provided on the push rod head of the third electric cylinder, and the push rod is fixed to the skateboard through the fixed block.

[0013] Preferably, the displacement assembly includes a screw, the screw thread is installed on the top of the support seat, the top of the screw is rotatably connected to the bottom of the splint, a guide block is rotatably installed on the screw, the guide block is slidably connected to the support seat, a limiting groove is provided on the support seat, and the guide block is located in the limiting groove of the support seat.

[0014] Preferably, a guide column is fixedly connected to the bottom of the positioning protrusion, and the guide column passes through the clamping plate and slidably matches with the sliding hole provided on the top of the support seat.

[0015] Preferably, a coal plow auxiliary plate is slidably arranged on the plate surface of the coal plow frame close to the coal plow plate, the shape of the coal plow auxiliary plate is consistent with the shape of the coal plow plate, and the plowing surface of the coal plow auxiliary plate is arranged parallel to the plowing surface of the coal plow plate; when the coal plow device is working, the bottom surface of the coal plow auxiliary plate contacts the feeding belt surface of the conveyor belt.

[0016] Preferably, at least one sliding column is fixedly installed on the top of the coal plow auxiliary plate, and the sliding column slides to match the sliding hole provided on the coal plow frame. A second spring is provided on the outer sleeve of the sliding column, and the two ends of the second spring are respectively fixedly connected to the coal plow frame and the coal plow auxiliary plate.

[0017] The technical solution of this application has at least the following advantages and beneficial effects:

[0018] Through the simultaneous operation of the first, second and third electric cylinders, the swing angle of the coal plowing plate is automatically adjusted according to the thickness of the conveyor belt, thereby realizing the coal plowing function with conveyor belts of different thicknesses;

[0019] By making the first and second electric cylinders work and the third electric cylinder not work, the height position of the coal plow is automatically adjusted according to the height of the conveyor belt, thereby realizing the coal plowing function with conveyor belts of different heights;

[0020] By arranging a coal plowing auxiliary plate at the rear end of the coal plowing plate, the coal dust particles leaked from the coal plowing plate are plowed and collected again. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the device from a top-down perspective.

[0023] Figure 3 It is a structural schematic diagram of the device from a left perspective.

[0024] Figure 4 It is a schematic cross-sectional structural diagram of the connecting components of the device.

[0025] Figure 5 It is a schematic cross-sectional structural diagram of the elastic part of the device.

[0026] Figure 6 This is a schematic cross-sectional view of the secondary coal plowing structure of the device.

[0027] Figure 7 This is a schematic cross-sectional view of the secondary coal plowing structure of the device from another angle.

[0028] In the figure: 1-coal plow, 11-support plate, 12-second electric cylinder, 13-coal plow plate, 14-coal plow frame, 15-mounting plate, 16-connecting assembly, 17-support plate, 18-support roller, 19-connecting rod, 2-first electric cylinder, 3-coal plow position detection mechanism, 31-support seat, 32-screw, 33-guide block, 34-clamping plate, 35-first spring, 36-positioning convex plate, 37-contact sensor, 4-secondary coal plow structure, 41-coal plow auxiliary plate, 42-sliding column, 43-second spring, 38-positioning concave plate, 161-slide plate, 162-connecting groove plate, 163-third electric cylinder. DETAILED DESCRIPTION

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the scope of protection of the present application.

[0030] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. If the orientation or position relationship indicated by the terms "center", "upper", "lower", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship when the product of the application is used, it is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the application. It should also be noted that, unless otherwise explicitly specified and limited, if the terms "set", "install", "connect" appear, they should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0031] Embodiment

[0032] Please refer to Figure 1-Figure 5 The utility model provides a kind of adjusting device of plough coal machine, based on the improvement of existing plough coal machine ontology structure.

[0033] The existing plough coal machine 1 ontology includes support plate 11 (support plate 11 is set as support bottom plate and support vertical plate respectively), second electric cylinder 12, plough coal plate 13, plough coal frame 14, mounting plate 15, support plate 17, support roller 18, connecting rod 19.

[0034] Specifically, the support bottom plate side is fixedly installed with the support vertical plate, the top of the support vertical plate is rotatably installed with the second electric cylinder 12, the driving shaft of the second electric cylinder 12 is rotatably connected with the plough coal frame 14, one side of the plough coal frame 14 is fixedly connected with the plough coal plate 13, the other side of the plough coal frame 14 is rotatably installed on the support vertical plate;When plough coal machine 1 works, the second electric cylinder 12 starts, the driving shaft of the second electric cylinder 12 is stretched out to drive the plough coal frame 14 to swing near one end of the plough coal plate 13, so that the plough coal plate 13 swings and abuts with the feeding belt surface of the lower conveying belt, and the coal material on the conveying belt is separated and collected.

[0035] A mounting plate 15 is fixedly connected to the bottom surface of the coal plow frame 14 near one end of the support vertical plate. Mounting plate 15 is connected to support plate 17 via a connecting plate. The ends of the connecting plate are hinged to mounting plate 15 and support plate 17, respectively. Support plate 17 is rotatably provided with multiple support rollers 18. Multiple connecting blocks are fixedly mounted on the support bottom plate. These connecting blocks are rotatably connected to one end of a connecting rod 19, the other end of which is rotatably connected to support plate 17. When the coal plow 1 is operating, mounting plate 15 swings with coal plow frame 14, driving support plate 17 to move via the connecting plate. The connecting rod supports the movement of support plate 17, and support rollers 18 abut against the back of the conveyor belt, supporting the conveyor belt that transports coal and ensuring the proper fit between coal plow plate 13 and the conveyor belt.

[0036] The difference between this embodiment and the prior art is that:

[0037] In this embodiment, in order to adapt to conveyor belts of different thicknesses, in this embodiment, the mounting plate 15 is connected to the support plate 17 through a connecting assembly 16; a coal plow adjustment device also includes a coal plow 1 position detection mechanism for determining whether the coal plow 1 is in contact with the belt surface, a height adjustment mechanism for adjusting the height of the coal plow 1, and a connecting assembly 16 for adjusting the thickness of the belt clamped by the coal plow 1.

[0038] The height adjustment mechanism includes a first electric cylinder 2 and a vertical slide.

[0039] Unlike the prior art, the support plates are equipped with vertical slides. A sliding post is located between the two vertical slides of the support plates. The output shaft of the first electric cylinder 2 is connected to the sliding post, which propels the sliding post up and down. The other side of the coal plow frame 14 is pivotally mounted on the sliding post, relying on the sliding post as a carrier to achieve its pivotal mounting on the support plates. Under the action of the first cylinder, the coal plow frame 14, along with its connected plow plate 13 and support plate 17, can all move up and down.

[0040] Through height adjustment, coal plowing can be achieved on conveyor belts at different heights.

[0041] In the prior art, the plow plate 13 and the support plate 17 are connected through the mounting plate 15 and the connecting plate, wherein the two ends of the connecting plate are hinged to the mounting plate 15 and the connecting plate respectively, and the connection length between the plow plate 13 and the support plate 17 determines the clamping thickness between the plow plate 13 and the support plate 17.

[0042] Based on this, in order to further realize the coal plowing work on the conveyor belts with different thicknesses, in this embodiment, the connecting assembly 16 is used to replace the connecting plate in the prior art.

[0043] Specifically, the connecting assembly includes a slide plate 161 , a connecting slot plate 162 , and a third electric cylinder 163 .

[0044] The bottom of the plow coal frame 14 is fixed with a mounting plate 15, one end of a sliding plate 161 is rotatably connected with the mounting plate 15, the other end of the sliding plate 161 is slidably connected with a connecting groove plate 162, the sliding direction of the sliding plate 161 is consistent with the length direction of the connecting groove plate 162, the end of the connecting groove plate 162 away from the sliding plate 161 is rotatably installed on a supporting plate 17, the connecting groove plate 162 is fixedly installed with a third electric cylinder 163, the head of the push rod of the third electric cylinder 163 is provided with a fixed block, and the push rod is fixed on the sliding plate 161 through the fixed block. The extension and contraction of the connecting assembly is driven by the working of the third electric cylinder 163, so as to change the connecting length of the plow coal plate 13 and the supporting plate 17, so as to realize clamping of the conveying belt with different thicknesses.

[0045] When the plow coal device 1 is adjusted by the first electric cylinder 2 and the second electric cylinder 12, the mounting plate 15 will also change the angle position along with the plow coal frame 14, so as to drive the sliding plate 161 to displace, at this time, the third electric cylinder 163 also works, and according to the displacement amount of the sliding plate 161, the driving shaft of the third electric cylinder 163 is driven to displace by the same displacement amount, so that when the sliding plate 161 displaces, the connecting groove plate 162 does not displace, so as to ensure that the supporting plate 17 and the supporting roller 18 still abut against the feeding back surface of the conveying belt in the subsequent connecting state, so as to ensure that the position of the supporting roller 18 does not change when the angle position of the plow coal plate 13 in the plow coal device body changes, and the adjustment accuracy is ensured.

[0046] The plow coal device position detection mechanism 3 comprises a displacement assembly, an elastic member, a clamping plate 34, a positioning convex plate 36 and a positioning concave plate 38.

[0047] Different from the prior art, the supporting bottom plate is provided with a supporting seat 31, the displacement assembly is vertically arranged on the supporting seat 31, and the clamping plate 34 fixed at the top of the displacement component is driven to move up and down, the clamping plate 34 and the positioning convex plate 36 above it are connected through the elastic member, and a clamping jaw structure which can be elastically clamped is formed, wherein the positioning convex plate 36 and the clamping plate 34 respectively constitute two clamping jaw plates of the clamping jaw structure, the elastic member applies a clamping force to the clamping jaw plates, and the plate surfaces of the two clamping jaw plates formed by the elastic member clamp the two surfaces of the conveying belt respectively, and the elastic clamping interval is the thickness of the conveying belt.

[0048] In addition, the top surface of the positioning convex plate 36 has a positioning convex, which is matched with the positioning concave surface in the positioning concave plate 38, and the positioning concave plate 38 is fixedly arranged on the mounting plate 15 which can change the angle, when the plow coal device 1 normally plows coal, the plow coal device 1 is attached to the conveying belt, the positioning convex plate 36 and the positioning concave plate 38 will contact and match in shape; when the plow coal device 1 is not attached to the conveying belt, the positioning convex plate 36 and the positioning concave plate 38 on the positioning concave-convex surface will be staggered due to the inconsistent angle, and cannot match in shape.

[0049] In addition, a contact sensor 37 is fixedly installed on the positioning surface of the positioning convex plate 36. When the positioning concave plate 38 contacts the positioning convex plate 36 in shape matching, the contact sensor 37 sends a contact signal to the control system of the coal plow 1, prompting the staff that the coal plow 1 is normally fitted with the conveyor belt; on the contrary, when the contact sensor 37 does not contact the positioning concave plate 38, it sends a non-contact signal, prompting the staff that the coal plow 1 is not fitted with the conveyor belt, and the coal plow 1 cannot work at this time.

[0050] Preferably, when the thickness of the belt changes, the height adjustment mechanism and the connecting assembly 16 work simultaneously, so that the coal plow 1 can adapt to belts of different thicknesses and keep in contact with them, thereby achieving normal coal plowing; at this time, the position detection mechanism of the coal plow 1 determines whether the coal plow 1 is in normal contact with the conveyor belt by whether the positioning concave plate 38 and the positioning convex plate 36 are in matching contact.

[0051] If it does not fit properly, the staff needs to readjust the displacement parameters of the height adjustment structure and the connecting component 16 . In some specific embodiments, the displacement component is preferably configured as a screw rod 32 and a guide block 33 .

[0052] Specifically, the screw rod 32 is threadedly mounted on the top of the support base 31. The top of the screw rod 32 is rotatably connected to the bottom of the clamping plate 34, ensuring that when the screw rod 32 rotates and moves up and down, its rotation does not interfere with the clamping plate 34. A guide block 33 is rotatably mounted on the screw rod 32. The guide block 33 is slidably connected to a limiting slide groove provided in the support base 31 to ensure the verticality of the screw rod 32 during displacement. A handle is fixedly mounted on the bottom end of the screw rod 32 to facilitate manual rotation.

[0053] Furthermore, two guide posts are fixed to the bottom of the positioning plate 36. These posts extend through the clamping plate 34 and slide into the sliding holes provided on the top of the support base 31, ensuring that the clamping plate 34 does not rotate and only moves up and down. The guide posts and elastic member are positioned so as not to interfere with the conveyor belt held between the clamping plate 34 and the positioning plate 36. Furthermore, the friction between the conveyor belt, the clamping plate 34, and the positioning plate 36 is minimal, allowing the conveyor belt to maintain normal conveying operation.

[0054] The elastic member is preferably configured as a first spring 35 .

[0055] Please refer to Figure 6-Figure 7 In some feasible embodiments, a secondary coal plowing structure is further provided on the plate surface of the coal plowing frame 14 close to the coal plowing plate 13 , and the secondary coal plowing structure includes a coal plowing auxiliary plate 41 , a sliding column 42 , and a second spring 43 .

[0056] Furthermore, the coal plow sub-plate 41 is slidably arranged on the plate surface of the coal plow frame 14 close to the coal plow plate 13. The shape of the coal plow sub-plate 41 is consistent with the shape of the coal plow plate 13, and the plowing surface of the coal plow sub-plate 41 is arranged parallel to the plowing surface of the coal plow plate 13; when the coal plow is working, the bottom surface of the coal plow sub-plate 41 contacts the feeding belt surface of the conveyor belt.

[0057] At least one sliding column 42 is fixedly installed on the top of the coal plow auxiliary plate 41, and the sliding column 42 slides to match the sliding hole set on the coal plow frame 14. A second spring 43 is provided on the outer sleeve of the sliding column 42. The two ends of the second spring 43 are respectively fixedly connected to the coal plow frame 14 and the coal plow auxiliary plate 41 to apply elastic force to them.

[0058] Preferably, because the conveyor belt itself has a certain elasticity, it will deform under the gravity of the coal material. The abutment of the support roller 18 on the back of the conveyor belt can reduce most of the gaps between the plow plate 13 and the conveyor belt. However, some fine coal dust particles will still leak to the other end of the conveyor belt. Therefore, a plow coal layer is formed again by the plow coal sub-plate 41 with the same shape behind the plow coal plate 13 to collect the leaked coal dust particles; the bottom surface of the plow coal sub-plate 41 exceeds the bottom surface of the plow coal plate 13. When it abuts against the conveyor belt, the plow coal sub-plate 41 moves up and retracts due to the elastic force of the second spring 43, so that the bottom surfaces of the plow coal sub-plate 41 and the plow coal plate 13 are both in abutment with the conveyor belt, but the plow coal sub-plate 41 has a greater abutment force under the action of the elastic force, which can reduce the gap between the abutment with the conveyor belt again and realize the function of collecting coal dust particles.

[0059] Thus far, various embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details known in the art have been omitted. Based on the above description, those skilled in the art will fully understand how to implement the technical solutions of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An adjustment device for a coal plow, comprising a coal plow (1), characterized in that: The coal plow (1) includes a coal plow plate (13) and a support roller (18). When the coal plow (1) is in operation, the coal plow plate (13) contacts the feeding surface of the conveyor belt, and the support roller (18) contacts the feeding back surface of the conveyor belt. The coal plow (1) includes a support vertical plate and a support bottom plate, a vertical slide groove is provided on the support vertical plate, a sliding column is slidably provided on the vertical slide groove, a first electric cylinder (2) is fixedly installed on the support vertical plate, and an output shaft of the first electric cylinder (2) is connected to the sliding column; the coal plow (1) body includes a coal plow frame (14), a coal plow plate (13) is fixedly installed on one side of the coal plow frame (14), and the other side is rotatably installed on the sliding column, and is rotatably installed on the support vertical plate with the sliding column as the axis; A mounting plate (15) is fixedly mounted on the bottom of the other side of the coal plow frame (14), and the mounting plate (15) is connected to the support plate (17) via a retractable connecting assembly (16), wherein both ends of the connecting assembly (16) are hinged to the mounting plate (15) and the support plate (17) respectively.

2. The adjustment device for a coal plow according to claim 1, characterized in that: A coal plow position detection mechanism (3) is provided on the support bottom plate, and the coal plow position detection mechanism (3) includes a support seat (31). A vertically movable displacement component is provided on the support seat (31). A clamping plate (34) is connected to the top of the displacement component. A positioning convex plate (36) is provided above the clamping plate (34). A contact sensor (37) is fixedly installed on the top surface of the positioning convex plate (36). An elastic member is connected between the positioning convex plate (36) and the clamping plate (34). The conveyor belt is located between the positioning convex plate (36) and the clamping plate (34). A positioning concave plate (38) is provided on the mounting plate (15). When the coal plow is working, the positioning concave plate (38) is matched and fitted with the positioning convex plate (36).

3. The adjustment device for a coal plow according to claim 1, characterized in that: The connecting assembly (16) includes a slide plate (161), one end of the slide plate (161) is rotatably connected to the mounting plate (15), and the other end of the slide plate (161) is slidably connected to the connecting slot plate (162). The sliding direction of the slide plate (161) is consistent with the length direction of the connecting slot plate (162). The end of the connecting slot plate (162) away from the slide plate (161) is rotatably mounted on the support plate (17). A third electric cylinder (163) is fixedly mounted on the connecting slot plate (162). A fixed block is provided on the push rod head of the third electric cylinder (163), and the push rod is fixed to the slide plate (161) through the fixed block.

4. The adjustment device for a coal plow according to claim 2, characterized in that: The coal plow position detection mechanism (3) includes a displacement assembly, which includes a screw (32). The screw (32) is threadedly mounted on the top of the support seat (31). The top of the screw (32) is rotatably connected to the bottom of the clamping plate (34). A guide block (33) is rotatably mounted on the screw (32). The guide block (33) is slidably connected to the support seat (31). A limiting slide groove is provided on the support seat (31), and the guide block (33) is located in the limiting slide groove of the support seat (31).

5. The adjustment device for a coal plow according to claim 2, characterized in that: The bottom of the positioning convex plate (36) is fixedly connected with a guide column, and the guide column passes through the clamping plate (34) and is slidably matched with the sliding hole provided on the top of the support seat (31).

6. The adjustment device for a coal plow according to claim 1, characterized in that: A coal plowing auxiliary plate (41) is slidably provided on the plate surface of the coal plowing frame (14) close to the coal plowing plate (13); the shape of the coal plowing auxiliary plate (41) is consistent with the shape of the coal plowing plate (13); the plowing surface of the coal plowing auxiliary plate (41) is arranged parallel to the plowing surface of the coal plowing plate (13); when the coal plowing device is working, the bottom surface of the coal plowing auxiliary plate (41) contacts the feeding belt surface of the conveyor belt.

7. The adjustment device for a coal plow according to claim 6, characterized in that: At least one sliding column (42) is fixedly installed on the top of the coal plow auxiliary plate (41), and the sliding column (42) is slidably matched with a sliding hole provided on the coal plow frame (14). A second spring (43) is provided on the outer sleeve of the sliding column (42), and the two ends of the second spring (43) are respectively fixedly connected to the coal plow frame (14) and the coal plow auxiliary plate (41).

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