CN112813910A - Hand-held small-sized pavement hard snow ice layer crusher and using method thereof - Google Patents
Hand-held small-sized pavement hard snow ice layer crusher and using method thereof Download PDFInfo
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- CN112813910A CN112813910A CN202011616900.0A CN202011616900A CN112813910A CN 112813910 A CN112813910 A CN 112813910A CN 202011616900 A CN202011616900 A CN 202011616900A CN 112813910 A CN112813910 A CN 112813910A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
- E01H5/12—Apparatus or implements specially adapted for breaking, disintegrating, or loosening layers of ice or hard snow with or without clearing or removing ; Roughening ice or hard snow by means of tools
Abstract
The invention relates to the field of snow and ice removing machinery, in particular to a hand-held small-sized pavement hard snow ice layer crusher and a using method thereof, the hand-held small-sized pavement hard snow ice layer crusher comprises a frame, a driving piece and a reduction gearbox transmission mechanism, wherein the driving piece and the reduction gearbox transmission mechanism are arranged on the frame; the driving piece drives the front crushing hobbing cutter mechanism and the rear crushing hobbing cutter mechanism to crush the ice layer, and meanwhile, the acting force of the front crushing hobbing cutter mechanism and the road surface counteracts the acting force of the rear crushing hobbing cutter mechanism and the road surface to drive the rack to walk; the invention has the beneficial effects that: the driving piece drives the front crushing hob mechanism and the rear crushing hob mechanism to crush the ice layer; the operation is simple, safe and reliable, and can be operated by one person.
Description
Technical Field
The invention relates to the field of snow and ice removing machinery, in particular to a hand-held small-sized pavement hard snow ice layer crusher and a using method thereof.
Background
Snow removal in winter is always an important work of urban environmental sanitation management departments, particularly, the cleaning of hardened snow and an ice layer formed after new loose snow is repeatedly rolled by vehicles and pedestrians is a great problem, the hardened snow and the ice layer cover areas such as high-speed railway stations, school districts, urban streets and the like, the industrial production and the life of people are greatly influenced, and the loss caused each year is hundreds of millions.
At present, the most common snow removal methods used in various countries of the world are summarized in two ways, namely, a thawing method and a mechanical method.
The fusion method is divided into a thermal method, a physical method and a chemical method. Snow removal by thermal methods relies on heating to melt accumulated snow or ice on the road surface. The thermal method has high cleaning rate, but is difficult to popularize in a large area due to high energy consumption and high cost. In the United states and some European countries, an electric heating method is used in a small range, and when bridges are built and roads are built, electric conduction and heating equipment is buried under the road surface in advance, and snow is melted by heat conduction. The physical snow removal means that natural anti-skid materials such as sand, slag and the like are used for achieving the purposes of removing ice and snow. Firstly, they are easily embedded in snow or ice layers to achieve the purpose of skid resistance; in addition, the heat absorption performance of the material is good, and the effect of heat absorption and snow melting can be achieved under the irradiation of strong light in winter. The initial cost of using the anti-skid materials is low, but the cleaning is needed after a large amount of the anti-skid materials are used, the workload is large, and even the urban sewer is silted up, so the physical method is rarely applied to the snow removal work of urban roads. Snow removal by a chemical method is common snow melting by using a snow melting agent, and the principle is that the snow melting agent is used for reducing the freezing temperature of water, melting new snow in the snow falling process and preventing the snow from freezing. The snow-removing agent has serious environmental pollution, has great damage to roads, bridges, vehicles, plants and the like, and is only used in a local small range at present. Generally, the melting method is not suitable for cleaning hardened accumulated snow on the road surface due to large energy consumption and heavy pollution.
Snow removal by a mechanical method is to directly remove ice and snow by a mode of doing work by equipment. The mechanical snow removal has the advantages of flexibility, no limitation of air temperature and no environmental pollution. The mechanical snow removing method can be divided into snow blowing, snow throwing, snow pushing, snow sweeping, rolling vibration type snow removing and the like.
The snow blowing is that high-speed gas flow discharged by a turbojet engine is utilized to generate micro low pressure on the surface of a snow layer, so that accumulated snow is separated from the ground and is blown away by the high-speed gas flow, the maximum revolution number is 9000 revolutions per minute, the exhaust temperature is higher than 645 ℃, the pressure of a main nozzle is about 2 tons, the aviation fuel consumption is huge, and the snow blowing is generally applied to airport snow removal. Its advantages are high efficiency, flexible application, thorough cleaning and suitability for different snow conditions. The snow cleaning method has the disadvantages of high noise, difficult maintenance, huge working consumption, difficult fuel supply, high use cost and serious heat damage to the road surface, and the China civil aviation administration does not recommend the snow cleaning method to be used in airports any more in recent years.
Snow throwing refers to a snow removing mode of throwing loose snow on a road surface by a rotary snow throwing rotor, and the snow removing mode is generally adopted under the condition that the snowfall is very thick (generally more than 200 mm). The snow throwing device is suitable for cleaning loose snow just below, snow on the road surface can not be cleared up generally by snow throwing, and subsequent other modes are matched for clearing. The snow throwing rotor does not contact the road surface at all, so that the effect of removing hardened snow is poor.
Snow pushing refers to a snow removing method of pushing accumulated snow on a road surface to two sides of the road surface by a snow pushing shovel, and is mostly adopted under the condition of not very thick snow (generally, the accumulated snow thickness is more than 40 and less than 200 mm). The snow shovel has poor adaptability to the road surface due to uneven road surface, a gap exists between the snow shovel and the road surface, snow removal is not thorough, the snow shovel has poor effect on clearing hardened accumulated snow, and finally manual clearing is needed; the snow shovel has low profiling capability and protection capability on the road surface, and particularly has great damage on uneven road surfaces and low-grade road surfaces.
The snow sweeping is to sweep snow to the roadside by utilizing a rotary rolling brush, is mainly suitable for thin floating snow or residual snow after snow throwing, and can thoroughly remove thin (generally less than 40 mm) uncompacted accumulated snow. The whole device comprises an integral frame, a hydraulic pipeline, a rolling shaft, a rolling brush, a control circuit and the like, power is sourced from a vehicle or an independent hydraulic pump, the total length of the device is within 3 meters, and the device works at a low rotating speed of about 500 revolutions per minute. The roll brush device may be fixed to the front, middle or rear of the vehicle. The rolling brush can swing left and right to work at a certain deflection angle to realize left-side snow sweeping or right-side snow sweeping, the sweeping material usually adopts nylon wires or fine steel wires are doped in nylon wire bundles according to a certain proportion and interval, and the structure, the material and the like of the snow sweeping rolling brush are only preliminarily researched at present. The rolling brush is generally arranged at the front part of a vehicle, and the snow sweeping rolling brush usually jolts up and down when running at high speed for snow removal, and the jolt amplitude is larger sometimes and even generates resonance, so that the rolling brush is controlled by adopting a proper structure; the whole snow sweeping rolling brush device is generally heavy, and a rolling brush structure bears complex vibration working conditions during working, so that structural parts can be fatigued and failed; the kinematics and the dynamic characteristics of the rolling brush are not deeply researched, and the problems directly influence the snow sweeping effect and are to be further deeply researched.
Rolling vibration type snow removal can be divided into: the three types of the shovel chopping type, the static grinding fracturing type and the vibrating type are as follows: (1) the shoveling and chopping type is a working part consisting of a multi-edge cutter, and carries out chopping motion on the ice layer on the road along with the rotation of a crankshaft; (2) rolling, wherein the rolling mainly comprises rolling a hard snow layer on a road surface by the gravity of a working roller, irregular cutting edges are arranged on the circumferential surface of the working roller, the whole working roller is arranged at the front end of a main machine and is used for crushing the ice and snow layer on the road surface along with the advance of the main machine; (3) in the vibration type, the deicing tool generates horizontal thrust by the circular motion of the high-speed eccentric block, generates vertical incision force by the motion of the convex block, and has the function of crushing an ice and snow layer by the synthesis of various forces. The three modes are not good in adaptability with the road surface, rigid in contact and poor in road surface profiling effect, when the ice and snow on the road are tightly combined with the road surface, the ice and snow can be separated from the road surface by large mechanical force, but the road surface is easy to damage due to overlarge mechanical force, so that the effect of removing the compacted hard snow layer on the road surface is not good.
In a word, large-scale snow removing equipment on the market at present is to compaction hard snow or ice layer in actual work, because ice and snow kind is various, and the road surface unevenness leads to these equipment to drive the road surface not thoroughly, can cause the damage to the road surface unavoidably moreover, and small region's such as pedestrian's cross walk snow and ice layer can't be cleared up to large-scale snow removing equipment in addition. Large snow cleaning equipment has high energy consumption, poor economy, inflexible operation and high equipment cost. The working part of the existing small-sized snow removing equipment is mainly a rolling brush, a brush body is made of plastic wires, the rigidity is small, the shearing force is weak, only loose snow and floating snow just under the brush body can be cleaned, and hard snow and ice layers compacted by pedestrians and vehicles cannot be treated.
Disclosure of Invention
The invention aims to provide a hand-held small-sized pavement hard snow ice layer crusher and a using method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a hand-held small-sized pavement hard snow ice layer crusher comprises a rack, a driving piece and a reduction gearbox transmission mechanism, wherein the driving piece and the reduction gearbox transmission mechanism are installed on the rack; the driving piece drives the front crushing hobbing cutter mechanism and the rear crushing hobbing cutter mechanism to crush ice layers, and meanwhile, the acting force of the front crushing hobbing cutter mechanism and the road surface counteracts the acting force of the rear crushing hobbing cutter mechanism and the road surface to drive the rack to walk.
As a further scheme of the invention: the contact area of the front crushing hobbing cutter mechanism and the road surface is larger than that of the rear crushing hobbing cutter mechanism and the road surface, and two ends of the rack are provided with handrails and installation positions capable of loading walking parts.
As a still further scheme of the invention: the input end and the output end of the reduction gearbox transmission mechanism are respectively provided with a transmission shaft and an output shaft which are connected through a gear pair, the transmission shaft is connected with a driving piece through a belt transmission mechanism, and the output shaft is connected with a front crushing hobbing cutter mechanism and a rear crushing hobbing cutter mechanism through a chain transmission mechanism.
As a still further scheme of the invention: the belt transmission mechanism comprises a belt wheel set and a transmission belt connected with the belt wheel set.
As a still further scheme of the invention: and a protective cover is arranged on the periphery of the belt transmission mechanism.
As a still further scheme of the invention: and the transmission shaft and the output shaft are both arranged in the transmission mechanism of the reduction gearbox through a bearing seat.
As a still further scheme of the invention: the driving piece comprises an engine and a clutch, and the engine is connected with the input end of the transmission mechanism of the reduction gearbox through the clutch.
As a still further scheme of the invention: the front crushing hobbing cutter mechanism and the rear crushing hobbing cutter mechanism both comprise a disc shaft and a plurality of disc blades arranged on the disc shaft at intervals.
As a still further scheme of the invention: the walking part comprises a rotating shaft and a conveying wheel arranged on the rotating shaft through a bearing, and the conveying wheel is connected with a sleeve arranged on the rack through the rotating shaft.
As another technical scheme provided by the invention: the use method of the hand-held small pavement hard snow ice layer crusher comprises the following steps: mounting a walking piece at the bottom of the frame, and driving the frame to a construction position through the walking piece; unloading the walking piece; and starting the driving piece, wherein the driving piece drives the front crushing hobbing cutter mechanism and the rear crushing hobbing cutter mechanism to crush the ice layer through the reduction gearbox transmission mechanism respectively.
Compared with the prior art, the invention has the beneficial effects that: the driving piece drives the front crushing hob mechanism and the rear crushing hob mechanism to crush the ice layer; the snow-breaking snow-removing machine is simple to operate, safe and reliable, can be operated by one person and has high ice-breaking snow-removing efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a hand-held small pavement hard snow ice layer crusher in a non-working state in the embodiment of the invention.
Fig. 2 is a first structural schematic diagram of the working state of the hand-held small-sized pavement hard snow ice layer crusher in the embodiment of the invention.
Fig. 3 is a schematic structural diagram of the working state of the hand-held small-sized pavement hard snow ice layer crusher in the embodiment of the invention.
FIG. 4 is a schematic structural diagram of a belt transmission mechanism and a reduction gearbox transmission mechanism in an embodiment of the invention.
Fig. 5 is a schematic structural diagram of the front and rear crushing hob mechanisms in the embodiment of the invention.
Fig. 6 is a schematic structural view of a transport wheel in an embodiment of the invention.
In the drawings: 1. a handrail; 2. a gasoline engine; 3. a frame; 4. a hanging position of the transport wheels; 5. a reduction gearbox transmission mechanism; 6. a transport wheel; 7. a protective cover; 8. a sleeve; 9. a belt drive mechanism; 10. a chain transmission mechanism; 11. a front crushing hob mechanism; 12. a rear crushing hob mechanism; 13. a shaft I; 14. a shaft II; 15. a shaft III; 16. a helical gear; 17. a bearing seat; 18. a small belt pulley; 19. a large belt pulley; 20. a disc blade; 21. a lower bearing seat; 22. a pin hole; 23. and a half shaft.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Referring to fig. 1-3, in the embodiment of the invention, a hand-held small-sized pavement hard snow ice layer crusher comprises a frame 3, and a driving member and a reduction gearbox transmission mechanism 5 which are installed on the frame 3, wherein the driving member is in transmission connection with an input end of the reduction gearbox transmission mechanism 5, a front crushing hob mechanism 11 and a rear crushing hob mechanism 12 which are in transmission connection with an output end of the reduction gearbox transmission mechanism 5 are respectively installed at two ends of the bottom of the frame 3, and a walking member which drives the frame to move is detachably installed at the middle part of the bottom of the frame 3; the driving piece drives the front crushing hobbing cutter mechanism 11 and the rear crushing hobbing cutter mechanism 12 to crush the ice layer, and meanwhile, the acting force of the front crushing hobbing cutter mechanism and the road surface counteracts the acting force of the rear crushing hobbing cutter mechanism and the road surface to drive the rack to walk.
As shown in fig. 5, each of the front crushing hob mechanism and the rear crushing hob mechanism includes a disc shaft and a plurality of disc blades 20 mounted on the disc shaft at intervals; each disc shaft is mounted to the bottom of the frame 3 by a lower bearing mount 21. 8 cutter teeth are uniformly distributed on the circumference of each disk blade 20, each cutter tooth is spirally staggered with each other, and hard alloy tooth edges are welded on the cutter teeth; all the cutter teeth form a helix. As shown in fig. 2 and 6, the walking part comprises a rotating shaft and a transport wheel 6 mounted on the rotating shaft through a bearing, and the transport wheel 6 is connected with a sleeve 8 arranged on the frame through the rotating shaft; the rotating shaft is provided with a half shaft 23, and the half shaft 23 is provided with a bolt hole 22 for fixing the half shaft 23 and the sleeve 8.
Furthermore, the contact area between the front crushing hob mechanism and the road surface is larger than that between the rear crushing hob mechanism and the road surface, namely the length of the front crushing hob mechanism is larger than that of the rear crushing hob mechanism; the plurality of disc blades 20 of the front crushing hobbing cutter mechanism rotate in the forward direction, the plurality of disc blades 20 of the rear crushing hobbing cutter mechanism rotate in the reverse direction, and the driving force generated by the front crushing hobbing cutter mechanism is greater than the resistance generated by the rear crushing hobbing cutter mechanism to form the power for the rack to walk.
In conclusion, the driving piece drives the front crushing hobbing cutter mechanism and the rear crushing hobbing cutter mechanism to crush the ice layer; the operation is simple, safe and reliable, the operation can be carried out by one person, and the ice breaking and snow removing efficiency is high; when moving, drive the frame through the transport wheel, can adapt to narrow road surface and the bad environment of road conditions condition.
Referring to fig. 1 and 3, in another embodiment of the present invention, handrails 1 and installation positions capable of loading walking members are provided at both ends of the frame.
The installation position is as transport wheel department of hanging 4 carry transport wheel 6 when leading broken hobbing cutter mechanism 11 and rearmounted broken hobbing cutter mechanism 12 operation, after the operation, take off transport wheel 6 from transport wheel department of hanging 4 to install the frame bottom, because the radius of rotation of transport wheel 6 is greater than the radius of rotation of leading broken hobbing cutter mechanism 11 and rearmounted broken hobbing cutter mechanism 12, consequently, after installing transport wheel 6, it supports leading broken hobbing cutter mechanism 11 and rearmounted broken hobbing cutter mechanism 12 and breaks away from the road surface, transport wheel 6 drives the frame walking.
Referring to fig. 1 and 3, in another embodiment of the present invention, the driving member includes an engine and a clutch, the engine is connected to the input end of the transmission mechanism of the reduction gearbox through the clutch, the engine adopts a gasoline engine 2, the clutch adopts a friction clutch, and the friction clutch is connected to the input end of the transmission mechanism 5 of the reduction gearbox through a belt transmission mechanism 9.
The gasoline engine has the advantages of horizontal bar four-stroke, rated power of 2.5 kilowatts, rated rotating speed of 1000 revolutions per minute, small volume and mass of the gasoline engine, simple and convenient use and operation and high cost performance. As shown in fig. 4, the belt transmission mechanism 9 includes a small belt pulley 18 installed at the output end of the friction clutch, a large belt pulley 19 installed at the input end of the reduction gearbox transmission mechanism 5, and a transmission belt connecting the small belt pulley 18 and the large belt pulley 19. The gasoline engine 2 is in transmission connection with a small belt pulley 19 through a friction clutch. The transmission belt adopts 3 SPB type narrow V belts, the height of the narrow V belts is large, the friction surface is large, a steel wire rope is used as a tensile body, the bearing capacity is improved by 2 times on average, and the transmission belt is suitable for the ice and snow crusher which is equipment with large requirement on transmission power and compact transmission space. The belt transmission is stable and has low noise during working, can buffer and absorb vibration, and if the belt is overloaded during working, the belt can slip on the large belt wheel and the small belt wheel, thereby preventing the damage of weak parts and playing a safety protection role. The transmission ratio of the belt transmission mechanism is selected to be 1: 4.
In order to ensure the operation safety of the hand-held small-sized pavement hard snow ice layer crusher during working, a protective cover 7 is additionally arranged on the periphery of the belt transmission mechanism.
Referring to fig. 3-4, in another embodiment of the present invention, a transmission shaft and an output shaft connected through a gear pair are respectively installed at an input end and an output end of the transmission mechanism of the reduction gearbox, and both the transmission shaft and the output shaft are installed in the transmission mechanism of the reduction gearbox through a bearing seat 17; the transmission shaft is connected with a driving piece through a belt transmission mechanism 9, and the output shaft is connected with a front crushing hobbing cutter mechanism and a rear crushing hobbing cutter mechanism through a chain transmission mechanism 10. The belt transmission mechanism comprises a belt wheel set and a transmission belt connected with the belt wheel set.
Specifically, the transmission mechanism of the reduction gearbox comprises a transmission shaft I13, and output shafts II14 and III15 respectively; the gear pair consists of a plurality of helical gears 16 which are meshed with each other; power is input from the shaft I13, power is output from the shaft II14 and the shaft III15, power of the shaft II14 is output to the rear crushing hob mechanism, and power of the shaft III15 is output to the front crushing hob mechanism. The front crushing hobbing cutter mechanism is the main working end of the whole equipment, the chain transmission of the power output of the shaft III15 is bilateral output and drives the disc blade of the front crushing hobbing cutter mechanism to rotate forward, and the chain transmission of the power output of the shaft II14 is unilateral output and drives the disc blade of the rear crushing hobbing cutter mechanism to rotate reversely.
The belt transmission mechanism 9 comprises a small belt wheel 18 arranged at the output end of the friction clutch, a large belt wheel 19 arranged at the input end of the reduction gearbox transmission mechanism 5, and a V belt connecting the small belt wheel 18 and the large belt wheel 19. The chain transmission mechanism comprises a driven chain wheel arranged on a disc shaft, driving chain wheels respectively arranged on a shaft II14 and a shaft III15, and a chain connecting the driving chain wheels and the driven chain wheels. The chain transmission mechanism can work under low-speed, heavy-load and low-temperature conditions and in a bad environment where ice and snow fly, the chain transmission mechanism is accurate in average transmission ratio, high in transmission power, small in acting force acting on the shaft and the bearing, high in transmission efficiency and capable of reaching 0.95-0.97. The transmission ratio of the chain transmission between the shafts II14 and III15 and the respective crushing and hobbing cutter mechanisms is 2:1, the rotating speed of the disc blade of the rear crushing and hobbing cutter mechanism is 25 revolutions per minute, the rotating speed of the disc blade of the front crushing and hobbing cutter mechanism is the same, and the rotating directions are opposite.
Furthermore, a coupler is arranged between the input end of the reduction gearbox transmission mechanism and the large belt wheel 19, an elastic sliding block coupler is selected as the coupler, the elastic sliding block coupler has large radial displacement and angular displacement compensation amount, nominal torque and allowable rotating speed are large, the lowest allowable working temperature can reach 35 ℃ below zero, and the device is suitable for being used by ice and snow removing equipment under the low-temperature condition in winter.
Referring to fig. 1-3, in another embodiment of the present invention, a method for using the walking-type small pavement hard snow ice layer crusher comprises the following steps: mounting a walking piece at the bottom of the frame 3, and driving the frame to a construction position through the walking piece; unloading the walking piece; and starting the driving piece, wherein the driving piece drives the front crushing hobbing cutter mechanism and the rear crushing hobbing cutter mechanism to crush the ice layer through the reduction gearbox transmission mechanism respectively.
The driving piece works, power is respectively transmitted to the front crushing hobbing cutter mechanism and the rear crushing hobbing cutter mechanism through the output end of the transmission mechanism of the reduction gearbox, and the front crushing hobbing cutter mechanism and the rear crushing hobbing cutter mechanism perform ice breaking operation; two crushing hobbing cutter mechanisms are arranged, so that the efficiency of ice breaking operation is improved, more effective ice crushing can be realized, the two crushing hobbing cutter mechanisms can adapt to a complex road surface, and hard snow and an ice layer on the road surface can be fully crushed through reverse rotation of the two crushing hobbing cutter mechanisms. The effective cutter width of the front-mounted crushing hob mechanism is 840mm, the width of the rear-mounted crushing hob mechanism is 600mm, and under the condition of the same diameter, the width of the front-mounted crushing hob mechanism is wider, so that the ice surface reaction force received by the front-mounted crushing hob mechanism is greater than that of the rear-mounted crushing hob mechanism, and therefore the whole equipment is driven to move forward. The equipment can control the advancing direction by holding the handrail by hands by operating personnel, and is simple and efficient to operate.
The working principle of the invention is as follows: the driving piece drives the front crushing hobbing cutter mechanism 11 and the rear crushing hobbing cutter mechanism 12 to crush the ice layer, and meanwhile, the acting force of the front crushing hobbing cutter mechanism and the road surface counteracts the acting force of the rear crushing hobbing cutter mechanism and the road surface to drive the rack to walk.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A hand-held small-sized pavement hard snow ice layer crusher comprises a rack, a driving piece and a reduction gearbox transmission mechanism, wherein the driving piece and the reduction gearbox transmission mechanism are installed on the rack; the driving piece drives the front crushing hobbing cutter mechanism and the rear crushing hobbing cutter mechanism to crush ice layers, and meanwhile, the acting force of the front crushing hobbing cutter mechanism and the road surface counteracts the acting force of the rear crushing hobbing cutter mechanism and the road surface to drive the rack to walk.
2. A hand-held small-sized pavement hard snow ice layer crusher as claimed in claim 1, wherein handrails and mounting positions capable of loading walking members are provided at both ends of the frame.
3. A hand-held small-sized pavement hard snow ice layer crusher as claimed in claim 1, wherein the input end and the output end of the reduction gearbox transmission mechanism are respectively provided with a transmission shaft and an output shaft which are connected through a gear pair, the transmission shaft is connected with a driving piece through a belt transmission mechanism, and the output shaft is connected with the front crushing hobbing cutter mechanism and the rear crushing hobbing cutter mechanism through a chain transmission mechanism.
4. A hand held small pavement hard snow ice crusher as claimed in claim 3 wherein said belt drive comprises a pulley set and a belt connecting the pulley set.
5. A hand held small pavement hard snow ice crusher as claimed in claim 3 wherein a protective cover is mounted around the belt drive.
6. A hand-held small-sized pavement hard snow ice layer crusher as claimed in claim 3, wherein the transmission shaft and the output shaft are both mounted in the transmission mechanism of the reduction gearbox through a bearing seat.
7. A hand-held small-sized pavement hard snow ice layer crusher as claimed in claim 1, wherein said driving member comprises an engine and a clutch, said engine is connected with the input end of the transmission mechanism of the reduction gearbox through the clutch.
8. A hand held small pavement hard snow ice crusher according to claim 1, wherein said forward crushing hob mechanism and said rearward crushing hob mechanism each comprise a disc shaft and a plurality of disc blades mounted on said disc shaft at intervals.
9. A hand-held small-sized pavement hard snow ice layer crusher as claimed in claim 1, wherein said walking member comprises a rotating shaft and a transport wheel bearing-mounted on the rotating shaft, and said transport wheel is connected with a sleeve provided on the frame through the rotating shaft.
10. A method of using a hand held small pavement hard snow ice crusher as claimed in any one of claims 1 to 9, comprising the steps of: mounting a walking piece at the bottom of the frame, and driving the frame to a construction position through the walking piece; unloading the walking piece; and starting the driving piece, wherein the driving piece drives the front crushing hobbing cutter mechanism and the rear crushing hobbing cutter mechanism to crush the ice layer through the reduction gearbox transmission mechanism respectively.
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