Mine slope mower

By combining the mowing knife with the spider crane, the telescopic boom and track of the spider crane is used to efficiently clean up the slope grass, solving the problems of low efficiency and poor safety on the slope, and improving the greening effect.

CN223080545UActive Publication Date: 2025-07-11MENGCAO ECOLOGICAL ENVIRONMENT (GRP) CO LTD
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Patent Information

Application Number
CN202420234657.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-31
Publication Date
2025-07-11
Estimated Expiration
2034-01-31

AI Technical Summary

Technical Problem

The existing lawn mowers have low efficiency in mowing on gentle slopes and slopes, high labor intensity, and pose safety hazards. The grass on the slopes is difficult to clean up in time, affecting the greening effect.

Method used

Combining the mowing knife with the spider crane, the grass on the slope is cut from bottom to top through the multiple telescopic booms and mowing components of the spider crane, and continuous mowing is carried out through the tracks on the top of the slope.

Benefits of technology

It solves the problem that grass is difficult to clean on slopes, improves the efficiency of mowing, reduces labor intensity, ensures safety, and improves the greening effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mine side slope mowers, and discloses a mine side slope mowing machine which comprises a spider crane moving to the slope top of a mine side slope. The plurality of telescopic lifting arms can stretch and retract on the main lifting arm; a mowing assembly is installed on the pin shaft, when the main lifting arm and the telescopic lifting arms swing downwards, the main lifting arm and the telescopic lifting arms can be flush with the slope surface of the side slope, and the mowing assembly can be located on the slope surface of the side slope; when the telescopic suspension arms retract, the mowing assembly can cut grass on the slope surface from bottom to top; the mowing assembly comprises a fixing plate, and a connector is fixedly mounted in the center of the upper surface of the fixing plate; the mowing assembly further comprises two fin plates, and two sets of cutter bodies are installed on the side walls of the two sides of each fin plate. According to the utility model, when the plurality of telescopic suspension arms contract inwards, the mowing assembly can cut grass on a slope surface from bottom to top, so that the problem of mowing grass on a gentle slope and a slope on a mine slope, especially the problem of mowing barren grass on the slope, is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of mine slope lawn mowers, and particularly relates to a mine slope lawn mower. Background Technique

[0002] The goals of mine restoration are mostly old open-pit mines that have been out of production for decades. Due to the long time, the equipment and requirements in each period are different, and the planning is not unified, resulting in the slopes at each level and each section not being straight, with different bending conditions, different lengths, different slopes (i.e., slopes) with different angles (the steepest is greater than 60 degrees), different lengths of slopes, and there are also potholes.

[0003] Existing lawn mowers are suitable for use on slopes with relatively gentle and flat terrain. Therefore, in such cases, the lawn mowing efficiency is relatively high.

[0004] However, as the labor cost increases year by year, the number of personnel in the greening and reclamation team is small (about 50 people), and the maintenance area is very large (mostly around 16 square kilometers). Even in areas with relatively gentle slopes, there is no formed lawn mower, the grass cutting efficiency is low, the labor intensity is high, and the grass cannot be cut in time. Especially for the grass on slopes, when workers stand on the slope and use a large grass cutting sickle to cut the grass, they will be in danger due to unstable center of gravity. The grass on the slope cannot be thoroughly cleaned in a short time, and the old yellow grass on individual steep slopes cannot be cleaned in time, blocking the newly grown green grass. From a distance, it forms a desolate scene, affecting the greening effect.

[0005] Therefore, it is urgent to solve the problem of grass cutting on gentle slopes and slopes, especially the problem of cutting wild grass on slopes. Based on this, the inventor wants to combine the grass cutting knife with a spider crane to solve the problem that there is no formed mine slope lawn mower on the slopes (side slopes) of mines or it is difficult for personnel to stand and cut the grass.

[0006] For this reason, the inventor now proposes a mine slope lawn mower. Content of the Utility Model

[0007] Aiming at the deficiencies of the prior art, the utility model provides a mine slope lawn mower to solve the problems raised in the background technique: as the labor cost increases year by year, the number of personnel in the greening and reclamation team is small (about 50 people), the maintenance area is very large (mostly around 16 square kilometers), even in areas with relatively gentle slopes, there is no formed lawn mower, the grass cutting efficiency is low, the labor intensity is high, the grass cannot be cut in time, especially the grass on slopes. When workers stand on the slope and use a large grass cutting sickle to cut the grass, they will be in danger due to unstable center of gravity. The grass on the slope cannot be thoroughly cleaned in a short time, and the old yellow grass on individual steep slopes cannot be cleaned in time, blocking the newly grown green grass. From a distance, it forms a desolate scene, affecting the greening effect.

[0008] To achieve the above object, the utility model provides the following technical solutions:

[0009] A grass cutter for a mine slope includes a spider crane moved to the top of the mine slope, which includes a body, crawlers arranged on both sides of the body, a rotary machine installed on one side of the top of the body, a main boom hinged to the rotary machine, a main boom hydraulic lifting cylinder installed between the rotary machine and the main boom, a plurality of telescopic booms installed on the main boom, a U-shaped fixing sleeve installed on the outermost telescopic boom, and a pin shaft installed on the U-shaped fixing sleeve;

[0010] Among them, the main boom and the plurality of telescopic booms swing up and down around the rotary machine through the main boom hydraulic lifting cylinder;

[0011] Among them, the main boom and the plurality of telescopic booms swing left and right through the rotary machine and under the connection of the main boom hydraulic lifting cylinder;

[0012] Among them, the plurality of telescopic booms extend and contract on the main boom; it is characterized in that: a grass cutting assembly is installed on the pin shaft, and when the main boom and the plurality of telescopic booms swing downwards, it is flush with the slope surface of the slope, and the grass cutting assembly is located on the slope surface of the slope;

[0013] When the plurality of telescopic booms contract, the grass cutting assembly cuts the grass on the slope from bottom to top;

[0014] Among them, the grass cutting assembly includes a fixing plate, a connecting head is fixedly installed at the center of the upper surface of the fixing plate, an installation hole is opened on the connecting head, the connecting head is snap-fitted in the U-shaped fixing sleeve, and after snap-fitting, the pin shaft is inserted and installed between the U-shaped fixing sleeve and the installation hole of the connecting head;

[0015] The grass cutting assembly further includes two wing plates, the two wing plates are respectively fixedly installed at both ends of the fixing plate, and two groups of cutter bodies are installed on both side walls of the wing plate.

[0016] Preferably, both groups of the cutter bodies are cutter heads, and the two cutter heads are respectively fixedly installed at the upper and lower parts of the side wall of the wing plate.

[0017] Preferably, each group of the cutter heads is equidistantly distributed in the length direction of the side wall of the wing plate.

[0018] Preferably, each of the cutter heads is triangular.

[0019] Preferably, each of the cutter heads is an isosceles triangle or an equilateral triangle.

[0020] Preferably, cutting edges are opened on both side walls of each of the cutter heads.

[0021] Preferably, the edge angle of each said blade is 14 - 20°.

[0022] Preferably, the mowing assembly further includes two steering wheels, and the two steering wheels are symmetrically and fixedly installed on both sides of the lower surface of the fixing plate.

[0023] Preferably, the spider crane further includes two sets of traveling wheels, the two sets of traveling wheels are respectively rotatably installed on both sides of the machine body, and the two crawlers are respectively sleeved on the corresponding sets of traveling wheels;

[0024] The spider crane further includes four fixing frames, and the four fixing frames are respectively fixedly installed at the four corners of the machine body;

[0025] The spider crane further includes four spider legs, and the four spider legs are respectively hinged and installed in the corresponding fixing frames;

[0026] The spider crane further includes four hydraulic cylinders, and the four hydraulic cylinders are respectively installed between the fixing frames and the spider legs. Beneficial effects

[0027] The utility model provides a mowing machine for a mine slope, and has the following beneficial effects:

[0028] First, in the utility model, multiple telescopic jibs can be telescoped on the main jib; a mowing assembly is installed on the pin shaft. When the main jib and the multiple telescopic jibs swing downward, they can be flush with the slope surface of the slope, and the mowing assembly can be located on the slope surface of the slope;

[0029] When the multiple telescopic jibs contract inward, the mowing assembly can cut the grass on the slope from bottom to top, thus solving the problem of mowing the grass on gentle slopes and slopes in the mine slope, especially the problem of mowing the weeds on the slope.

[0030] Second, in the utility model, after the weeds on one side of the slope are cut, the rotary machine rotates the main jib and the multiple telescopic jibs to make the main jib and the multiple telescopic jibs perpendicular to the machine body. By using the two crawlers, the spider crane can move on the top of the slope of the slope. After the movement is completed, repeating the above actions can sequentially cut the weeds on the slope of the slope;

[0031] Therefore, the mowing machine for the mine slope not only solves the problem that there is no formed mowing machine on the slope of the mine, but also solves the problem that personnel cannot stand on the slope of the mine to mow the grass.

[0032] Third, in the utility model, the mowing assembly can be conveniently installed or disassembled on the U-shaped fixing sleeve through the pin shaft;

[0033] Moreover, the mowing assembly can freely deflect according to the terrain of the slope through the movable cooperation between the connecting head and the pin shaft, so that the mowing assembly can change with the change of the slope terrain, in order to better mow the weeds on the slope.

[0034] IV. In the present utility model, the cutter head is the preferred structure of the cutter body, and the mowing assembly can mow the weeds on the slope through two groups of cutter heads.

[0035] V. In the present utility model, the triangular cutter head is easier to mow grass.

[0036] VI. In the present utility model, the cutter head in the shape of an isosceles triangle or an equilateral triangle is a better structure.

[0037] VII. In the present utility model, cutting edges are provided on both side walls of the cutter head, and the edge angle of each cutting edge is 14 - 20°. 14 - 20° is the minimum edge angle, and the cutting edge is very sharp, suitable for cutting softer objects;

[0038] Therefore, the edge angle of 14 - 20° is the optimal range value of the cutting edge.

[0039] VIII. In the present utility model, when the mowing assembly fits the slope, the two idler wheels can be on the slope, and the mowing assembly can float up and down according to the terrain of the slope under the action of the two idler wheels, so that the mowing assembly can adapt to slopes of different terrains. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is the front view schematic diagram of the present utility model;

[0041] Figure 2 is the three - dimensional schematic diagram of the mowing assembly of the present utility model;

[0042] Figure 3 is the bottom three - dimensional schematic diagram of the mowing assembly of the present utility model;

[0043] Figure 4 is the three - dimensional schematic diagram after the telescopic boom in the spider crane of the present utility model is extended;

[0044] Figure 5 is Figure 4 the enlarged three - dimensional schematic diagram of part A in

[0045] Figure 6 is the three - dimensional schematic diagram after the telescopic boom in the spider crane of the present utility model is retracted.

[0046] In the figure: 10, spider crane; 101, machine body; 102, rotating machine; 103, main boom; 104, main boom hydraulic lifting cylinder; 105, telescopic boom; 106, U-shaped fixing sleeve; 107, pin shaft; 108, walking wheel; 109, crawler track; 110, fixing frame; 111, spider leg; 112, hydraulic cylinder; 20, mowing assembly; 201, fixing plate; 202, connecting head; 203, fin plate; 204, cutter head; 205, directional wheel. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0048] The targets of mine restoration are mostly old open-pit mines that have been shut down for decades. Due to their age, the equipment and requirements of each period are different, and the planning is not unified, resulting in the slopes of each level and section being not straight, with different curvatures and lengths. The angles of the slopes (i.e., slopes) vary (the steepest is greater than 60 degrees), the lengths of the slopes vary, and there are potholes.

[0049] Existing lawn mowers are suitable for use in conditions where the slope is relatively gentle and relatively flat. Therefore, in such conditions, the efficiency of mowing is relatively high.

[0050] However, with the increasing labor costs year by year, the greening and reclamation team has a small number of personnel (about 50 people), and the maintenance area is very large (mostly around 16 square kilometers). Even in areas with gentle slopes, there are no mature lawn mowers, and the mowing efficiency is low, the labor intensity is high, and the grass cannot be mowed in time, especially the grass on the slope. When the staff stand on the slope and use a large mowing sickle to mow the grass, it will be dangerous due to the unstable center of gravity. The grass on the slope cannot be completely cleaned in a short time, and the aging yellow grass on some steep slopes cannot be cleaned in time, blocking the newly grown green grass. From a distance, it forms a barren scene, affecting the greening effect.

[0051] Therefore, there is an urgent need to solve the problem of mowing gentle slopes and slopes, especially the problem of mowing weeds on slopes. Based on this, the inventor wants to combine a mower with a spider crane to solve the problem that there is no formed mine slope mower or it is difficult for personnel to stand and mow on the slope (slope) of the mine.

[0052] Among them, the main components of the spider crane include the car body, main arm, telescopic arm, rotating mechanism, lifting mechanism, etc.

[0053] The main boom is the main load-bearing structure of the spider crane. The slewing mechanism can drive the rotation of the main boom. The telescopic boom can be telescoped as needed to adapt to different lifting requirements. The hoisting mechanism is responsible for lifting or lowering the main boom and the telescopic boom to the required height.

[0054] In order to solve the above technical problems, the inventor has adopted the following technical solutions, which are specifically as follows:

[0055] As Figures 1-6 shown, the present utility model provides a technical solution:

[0056] A grass cutter for a mine slope includes a spider crane 10 that can move to the top of the mine slope. The spider crane 10 includes a body 101, crawlers 109 arranged on both sides of the body 101, a slewing machine 102 installed on one side of the top of the body 101, a main lifting boom 103 hinged to the slewing machine 102, a main lifting boom hydraulic lifting cylinder 104 installed between the slewing machine 102 and the main lifting boom 103, a plurality of telescopic lifting booms 105 installed on the main lifting boom 103, a U-shaped fixing sleeve 106 installed on the outermost telescopic lifting boom 105, and a pin shaft 107 installed on the U-shaped fixing sleeve 106;

[0057] Among them, the main lifting boom 103 and the plurality of telescopic lifting booms 105 can swing up and down around the slewing machine 102 through the main lifting boom hydraulic lifting cylinder 104;

[0058] Among them, the main lifting boom 103 and the plurality of telescopic lifting booms 105 can swing left and right through the slewing machine 102 and under the connection of the main lifting boom hydraulic lifting cylinder 104;

[0059] Among them, the plurality of telescopic lifting booms 105 can be telescoped on the main lifting boom 103; a grass cutting assembly 20 is installed on the pin shaft 107. When the main lifting boom 103 and the plurality of telescopic lifting booms 105 swing downward, they can be flush with the slope surface of the slope, and the grass cutting assembly 20 can be located on the slope surface of the slope;

[0060] When the plurality of telescopic lifting booms 105 contract inward, the grass cutting assembly 20 can cut the grass on the slope surface from bottom to top, thus solving the grass cutting problems on gentle slopes and slopes of mine slopes, especially the grass cutting problem of wild grass on slopes;

[0061] At the same time, after the wild grass on one side of the slope is cut, the slewing machine 102 rotates the main lifting boom 103 and the plurality of telescopic lifting booms 105 so that the main lifting boom 103 and the plurality of telescopic lifting booms 105 are perpendicular to the body 101. Using the two crawlers 109, the spider crane 10 moves on the top of the slope. After the movement is completed, repeat the above actions again to cut the wild grass on the slope of the slope in sequence.

[0062] Therefore, in this embodiment, not only the problem that there is no formed lawn mower on the slope of the mine is solved, but also the problem that personnel cannot stand on the slope of the mine to mow the grass is solved.

[0063] In this embodiment, it should be noted that the main boom 103 and the plurality of telescopic booms 105 can swing up and down around the rotary machine 102 through the main boom hydraulic lifting cylinder 104;

[0064] The main boom 103 and the plurality of telescopic booms 105 can swing left and right through the rotary machine 102 and under the connection of the main boom hydraulic lifting cylinder 104;

[0065] And the plurality of telescopic booms 105 can be telescoped on the main boom 103, which are all functions of the spider crane 10 itself. Moreover, the model of the spider crane 10 can be freely purchased in the market according to the actual needs of technicians. And for those skilled in the art, all the functions of the spider crane 10 itself are common knowledge. Therefore, the inventor will not elaborate too much on the spider crane 10 and its components here.

[0066] In order to optimize the structure of the mowing assembly 20, in this embodiment, the mowing assembly 20 includes a fixing plate 201. A connecting head 202 is fixedly installed at the center of the upper surface of the fixing plate 201. An installation hole is provided on the connecting head 202. The connecting head 202 can be snap-fitted into the U-shaped fixing sleeve 106. And after snap-fitting, the pin shaft 107 can be inserted between the installation holes of the U-shaped fixing sleeve 106 and the connecting head 202;

[0067] The mowing assembly 20 further includes two wing plates 203. The two wing plates 203 are respectively fixedly installed at both ends of the fixing plate 201. Two groups of cutter bodies are installed on both side walls of the wing plates 203.

[0068] In this embodiment, the mowing assembly 20 can be conveniently installed or disassembled on the U-shaped fixing sleeve 106 through the pin shaft 107;

[0069] And the mowing assembly 20 can freely deflect according to the terrain of the slope through the movable cooperation between the connecting head 202 and the pin shaft 107, so that the mowing assembly 20 can change with the change of the slope terrain to better mow the weeds on the slope. Embodiment Two

[0070] As Figures 1-6 shown, it is improved on the basis of Embodiment One:

[0071] In order to embody the structure of the spider crane 10, further, the spider crane 10 further includes two sets of traveling wheels 108, the two sets of traveling wheels 108 are respectively rotatably installed on both sides of the body 101, and two crawler belts 109 are respectively sleeved on the corresponding sets of traveling wheels 108;

[0072] The spider crane 10 further includes four fixing frames 110, and the four fixing frames 110 are respectively fixedly installed at the four corners of the body 101;

[0073] The spider crane 10 further includes four spider legs 111, and the four spider legs 111 are respectively hinged and installed in the corresponding fixing frames 110;

[0074] The spider crane 10 further includes four hydraulic cylinders 112, and the four hydraulic cylinders 112 are respectively installed between the fixing frames 110 and the spider legs 111.

[0075] In this embodiment, the two sets of traveling wheels 108 can drive the movement of the corresponding crawler belts 109, each fixing frame 110 is used to support the corresponding spider leg 111, and the spider crane 10 can achieve stable support through the four spider legs 111;

[0076] Moreover, each spider leg 111 can be retracted and extended through the corresponding hydraulic cylinder 112. Embodiment Three

[0077] As Figures 1-6 shown, on the basis of Embodiment One, the improvement is as follows:

[0078] In order to optimize the structure of the two sets of cutter bodies, in this embodiment, further, the two sets of cutter bodies are both cutter heads 204, and the two sets of cutter heads 204 are respectively fixedly installed at the upper and lower parts of the side wall of the wing plate 203.

[0079] In this embodiment, the cutter head 204 is the preferred structure of the cutter body, and moreover, the mowing assembly 20 can mow the weeds on the slope through the two sets of cutter heads 204.

[0080] In order to optimize the distribution of the two sets of cutter heads 204, in this embodiment, further, each set of cutter heads 204 is evenly distributed along the length direction of the side wall of the wing plate 203. Embodiment Four

[0081] As Figures 1-6 shown, on the basis of Embodiment Three, the improvement is as follows:

[0082] In order to better optimize the specific structure of each cutter head 204 and make the cutter head 204 easier to mow grass, in this embodiment, further, each cutter head 204 is triangular.

[0083] In this embodiment, the triangular cutter head 204 is more conducive to mowing grass.

[0084] In order to further optimize the triangular structure of each cutter head 204, in this embodiment, furthermore, each cutter head 204 is an isosceles triangle or an equilateral triangle.

[0085] In this embodiment, the cutter head 204 in the shape of an isosceles triangle or an equilateral triangle has a better structure. Embodiment Five

[0086] As Figures 1-6 shown, based on Embodiment Four for improvement:

[0087] In order to optimize the cutting effect of each cutter head 204, in this embodiment, furthermore, cutting edges are provided on the side walls on both sides of each cutter head 204.

[0088] In order to optimize the sharpness of the cutting edges, in this embodiment, furthermore, the edge angle of each cutting edge is 14 - 20°.

[0089] In this embodiment, 14 - 20° is the minimum edge angle, and the cutting edges are very sharp, suitable for cutting softer objects;

[0090] Therefore, the edge angle of 14 - 20° is the optimal range value for the cutting edges.

[0091] In order to further optimize the sharpness of the cutting edges, in this embodiment, furthermore, the edge angle of each cutting edge is 20 - 34°.

[0092] In this embodiment, for most knives, the edge angles within the range of 20 - 34° are relatively sharp and are also suitable for softer things.

[0093] For example: the edge angles of pocket knives, fruit knives, hunting knives and some outdoor knives are mostly within this range.

[0094] In order to further optimize the sharpness of the cutting edges, in this embodiment, furthermore, the edge angle of each cutting edge is 34 - 44°.

[0095] In this embodiment, 34 - 44° is the angle range suitable for most knives, with both sharpness and strong edge retention, and is easy to be sharpened again. Embodiment Six

[0096] As Figures 1-6 shown, based on Embodiment One for improvement:

[0097] In order to further optimize the structure of the mowing assembly 20, in this embodiment, further, the mowing assembly 20 further includes two steering wheels 205, and the two steering wheels 205 are symmetrically and fixedly installed on both sides of the lower surface of the fixing plate 201.

[0098] In this embodiment, when the mowing assembly 20 is attached to a slope, the two steering wheels 205 can be on the slope, and the mowing assembly 20 can float up and down according to the terrain of the slope under the action of the two steering wheels 205, so that the mowing assembly 20 can adapt to slopes of different terrains.

[0099] In summary, the working process of the present utility model is as follows:

[0100] The main boom 103 and the plurality of telescopic booms 105 can swing up and down around the rotary machine 102 by means of the main boom hydraulic lifting cylinder 104;

[0101] The main boom 103 and the plurality of telescopic booms 105 can swing left and right through the rotary machine 102 and under the connection of the main boom hydraulic lifting cylinder 104;

[0102] The plurality of telescopic booms 105 can be telescoped on the main boom 103; the mowing assembly 20 is installed on the pin shaft 107. When the main boom 103 and the plurality of telescopic booms 105 swing downward, they can be flush with the slope surface of the slope, and the mowing assembly 20 can be located on the slope surface of the slope;

[0103] When the plurality of telescopic booms 105 retract inward, the mowing assembly 20 can cut the grass on the slope from bottom to top, thus solving the problem of mowing on gentle slopes and slopes of mine slopes, especially the problem of mowing wild grass on slopes;

[0104] At the same time, after the wild grass on one side of the slope is cut, the rotary machine 102 rotates the main boom 103 and the plurality of telescopic booms 105 so that the main boom 103 and the plurality of telescopic booms 105 are perpendicular to the body 101. Using the two crawlers 109, the spider crane 10 moves on the top of the slope of the slope. After the movement is completed, repeat the above actions again to sequentially cut the wild grass on the slope of the slope.

[0105] Therefore, it not only solves the problem that there is no formed mowing machine on the slopes of mines, but also solves the problem that personnel cannot stand on the slopes of mines to mow grass.

[0106] The two sets of walking wheels 108 can drive the corresponding crawlers 109 to move. Each fixing frame 110 is used to support the corresponding spider leg 111. The spider crane 10 can achieve stable support through the four spider legs 111;

[0107] Moreover, each spider leg 111 can be retracted and extended through the corresponding hydraulic cylinder 112;

[0108] The mowing assembly 20 can be conveniently installed or disassembled on the U-shaped fixing sleeve 106 through the pin shaft 107;

[0109] Moreover, the mowing assembly 20 can be freely deflected according to the terrain of the slope through the movable cooperation between the connecting head 202 and the pin shaft 107, so that the mowing assembly 20 can change with the change of the slope terrain to better mow the weeds on the slope;

[0110] The cutter head 204 is the preferred structure of the cutter body, and the mowing assembly 20 can mow the weeds on the slope through two groups of cutter heads 204;

[0111] Each cutter head 204 is triangular. The triangular cutter head 204 is easier to mow grass. Each cutter head 204 is an isosceles triangle or an equilateral triangle. The cutter head 204 in the shape of an isosceles triangle or an equilateral triangle is a better structure;

[0112] Blades are provided on both side walls of each cutter head 204. The edge angle of each blade is 14 - 20°. 14 - 20° is the minimum edge angle. The blade is very sharp and suitable for cutting softer objects;

[0113] Therefore, the edge angle of 14 - 20° is the optimal range value for the blade;

[0114] The edge angle of each blade can also be 20 - 34°. For most tools, the edge angle in the range of 20 - 34° is relatively sharp and also suitable for softer things;

[0115] The edge angle of each blade can also be 34 - 44°. 34 - 44° is the angle range suitable for most tools, with both sharpness and strong edge retention, and is easy to be sharpened again;

[0116] When the mowing assembly 20 is in contact with the slope, the two idler wheels 205 can be on the slope, and the mowing assembly 20 can float up and down according to the terrain of the slope under the action of the two idler wheels 205, so that the mowing assembly 20 can adapt to slopes of different terrains.

[0117] The above different embodiments can be combined, replaced, and used in combination with each other.

[0118] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0119] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mine slope lawn mower, including a spider crane (10) moved to the top of the mine slope, which includes a body (101), crawlers (109) arranged on both sides of the body (101), a rotary machine (102) installed on one side of the top of the body (101), a main boom (103) hinged to the rotary machine (102), a main boom hydraulic lifting cylinder (104) installed between the rotary machine (102) and the main boom (103), a plurality of telescopic booms (105) installed on the main boom (103), a U-shaped fixing sleeve (106) installed on the outermost telescopic boom (105), and a pin shaft (107) installed on the U-shaped fixing sleeve (106); Among them, The main boom (103) and the plurality of telescopic booms (105) swing up and down around the rotary machine (102) through the main boom hydraulic lifting cylinder (104); Among them, the main boom (103) and the plurality of telescopic booms (105) swing left and right through the rotary machine (102) and under the connection of the main boom hydraulic lifting cylinder (104); Among them, the plurality of telescopic booms (105) telescope on the main boom (103); it is characterized in that: a lawn mowing assembly (20) is installed on the pin shaft (107). When the main boom (103) and the plurality of telescopic booms (105) swing downward, they are flush with the slope surface of the slope, and the lawn mowing assembly (20) is located on the slope surface of the slope; When the plurality of telescopic booms (105) contract, the lawn mowing assembly (20) cuts the grass on the slope surface from bottom to top; Among them, the lawn mowing assembly (20) includes a fixing plate (201). A connecting head (202) is fixedly installed at the center of the upper surface of the fixing plate (201). An installation hole is opened on the connecting head (202). The connecting head (202) is snap-fitted into the U-shaped fixing sleeve (106). After snap-fitting, the pin shaft (107) is inserted and installed between the U-shaped fixing sleeve (106) and the installation hole of the connecting head (202); The lawn mowing assembly (20) further includes two wing plates (203). The two wing plates (203) are respectively fixedly installed at both ends of the fixing plate (201). Two groups of cutter bodies are installed on both side walls of the wing plate (203).

2. The lawn mower for a mine slope according to claim 1, characterized in that: Both groups of the cutter bodies are cutter heads (204). The two groups of cutter heads (204) are respectively fixedly installed at the upper and lower parts of the side wall of the wing plate (203).

3. The lawn mower for a mine slope according to claim 2, characterized in that: Each group of cutter heads (204) is equidistantly distributed in the length direction of the side wall of the wing plate (203).

4. The grass cutter for a mine slope according to claim 3, characterized in that: Each cutter head (204) is triangular in shape.

5. The lawn mower for a mine slope according to claim 4, characterized in that: Each cutter head (204) is an isosceles triangle or an equilateral triangle.

6. The lawn mower for a mine slope according to claim 4, wherein: Cutting edges are opened on both side walls of each cutter head (204).

7. The grass cutter for a mine slope according to claim 6, characterized in that: The edge opening angle of each cutting edge is 14 - 20°.

8. The grass cutter for a mine slope according to claim 1, wherein: The lawn mowing assembly (20) further includes two idler wheels (205). The two idler wheels (205) are symmetrically and fixedly installed on both sides of the lower surface of the fixing plate (201).

9. The grass cutter for a mine slope according to claim 1, characterized in that: The spider crane (10) further includes two sets of traveling wheels (108), and the two sets of traveling wheels (108) are respectively rotatably installed on both sides of the machine body (101), and the two crawlers (109) are respectively sleeved on the corresponding sets of traveling wheels (108); The spider crane (10) further includes four fixing frames (110), and the four fixing frames (110) are respectively fixedly installed at the four corners of the machine body (101); The spider crane (10) further includes four spider legs (111), and the four spider legs (111) are respectively hinged and installed in the corresponding fixing frames (110); The spider crane (10) further includes four hydraulic cylinders (112), and the four hydraulic cylinders (112) are respectively installed between the fixing frames (110) and the spider legs (111).