CN215545415U - Lithium battery steel rail cutting machine - Google Patents

Abstract

The utility model relates to a cutting machine, in particular to a lithium battery steel rail cutting machine, which comprises a handle assembly, a cutting assembly, a connecting assembly and a transmission assembly, and further comprises: the cutting assembly is fixed on the outer rotor motor through the connecting assembly, and the transmission assembly is respectively connected with the outer rotor motor and the cutting assembly, so that the outer rotor motor drives the cutting assembly to work; the connecting seat is fixed on the outer rotor motor and is respectively positioned at two sides of the outer rotor motor together with the cutting assembly; the battery component is detachably arranged on the connecting seat; the switch assembly is arranged on the connecting seat; two ends of the handle component are respectively fixed on the connecting seat and the outer rotor motor; and the controller is arranged at one end of the outer rotor motor and is electrically connected with the outer rotor motor, the battery assembly and the switch assembly respectively. The lithium electric steel rail cutting machine provided by the utility model adopts the outer rotor motor, and has the advantages of large output torque, light weight, convenience in use and labor saving.

Description

Lithium battery steel rail cutting machine

Technical Field

The utility model relates to a cutting machine, in particular to a lithium battery steel rail cutting machine.

Background

The steel rail cutting machine is used for cutting a railway or a ground drop steel rail, and a lithium battery is mainly used as a power supply because the steel rail cutting machine is mostly operated in business. The prior portable steel rail cutting machine has large volume, heavy weight, inconvenient use and small output torque.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a lithium battery steel rail cutting machine which is small in size, light in weight, large in output torque, convenient to use and labor-saving, and the specific technical scheme is as follows:

lithium electricity rail cutting machine includes handle assembly, cutting assembly, coupling assembling and drive assembly, still includes: the cutting assembly is fixed on the outer rotor motor through the connecting assembly, and the transmission assembly is respectively connected with the outer rotor motor and the cutting assembly so that the outer rotor motor drives the cutting assembly to work; the connecting seat is fixed on the outer rotor motor and is respectively positioned at two sides of the outer rotor motor together with the cutting assembly; the battery component is detachably arranged on the connecting seat; the switch assembly is arranged on the connecting seat; two ends of the handle assembly are respectively fixed on the connecting seat and the outer rotor motor; and the controller is arranged at one end of the outer rotor motor and is electrically connected with the outer rotor motor, the battery assembly and the switch assembly respectively.

By adopting the technical scheme, the outer rotor motor can output larger torque and reduce the volume and weight of the motor because the diameter of the rotor is larger than that of the traditional inner rotor, namely the force arm is larger.

Meanwhile, the motor is used as a mounting base, and all components are mounted around the outer rotor motor, so that connecting parts are reduced, the weight is reduced, the structure is simpler, the number of parts is less, and the cost is lower.

Preferably, the outer rotor motor includes: the air conditioner comprises a machine shell, a top cover, a bottom cover, a stator, a rotor and a filter, wherein the top of the machine shell is provided with an air outlet hole; the stator comprises a stator core, a winding and a stator frame, the stator frame is fixed on the bottom cover, and the winding is fixed on the stator frame through the stator core; the rotor comprises a permanent magnet, a rotating ring, fan blades and a motor shaft, the permanent magnet annular array is fixed on the inner circular surface of the rotating ring and is arranged opposite to the stator core, the motor shaft is fixed at the top of the rotating ring through the fan blades, the motor shaft is respectively connected with the stator frame and the top cover in a rotating mode, and the fan blades are arranged opposite to the air outlet and are arranged around the motor shaft annular array; the filter is fixed on the bottom cover and filters air entering the air inlet hole on the bottom cover; the lateral surface of casing is equipped with a plurality of mount pad, the connecting seat with handle component all with the mount pad is connected.

The fan blades are integrated on the rotor to realize synchronous rotation, the fan blades discharge hot air through the air outlet holes in the shell, air filtered by the filter is pumped into the motor when the fan blades are used for exhausting air, the stator part is cooled, the winding is kept at a lower temperature, long-time continuous work is further stably carried out, and the filter filters iron powder and sundries to avoid damaging the motor.

Preferably, the method further comprises the following steps: the connecting shaft is arranged on the stator frame through a second bearing and a third bearing and is connected with the motor shaft; the motor shaft is mounted on the top cover through a first bearing.

Preferably, the filter comprises: the filter is installed in the filter cover, the filter cover is installed on the bottom cover, and a plurality of filter holes are formed in the filter cover.

Furthermore, the filter plate includes the filter screen board of a plurality of different mesh numbers, and sets gradually.

Preferably, the magnetic filter further comprises a magnetic ring, wherein the magnetic ring is fixed in the filter cover and is positioned between the filter plate and the bottom cover.

Preferably, the bottom of the controller is provided with a plurality of radiating fins and connecting studs, the controller is installed on the filter through the connecting studs, and the radiating fins are arranged opposite to the air inlet holes, so that the radiating fins are radiated when the air inlet holes supply air.

By adopting the technical scheme, the controller dissipates heat by means of the fan blades of the motor, the utilization rate of the fan blades is greatly improved, the heat dissipation of the motor can be ensured, the heat dissipation of the controller is realized, multiple purposes of one fan blade are realized, the structure is simplified, a heat dissipation system is formed, and reliable heat dissipation is realized. Because the calorific capacity of the controller is less than that of the motor, the influence of air after the controller radiates on the radiation of the motor is small, the radiation problem of the existing controller is solved, and the radiation effect of the controller is improved.

Preferably, the connecting seat comprises a battery fixing plate and a handle fixing plate which are both fixed on the outer rotor motor, the top of the handle fixing plate is further fixed at the bottom of the battery fixing plate, the battery assembly is detachably mounted on the battery fixing plate, one end of the handle assembly is fixed on the handle fixing plate, and the switch assembly is mounted on the handle fixing plate.

The connecting seat is mounted with the battery assembly, the handle assembly and the switch assembly, and the structure is simplified.

Preferably, the battery module includes: a lithium battery; the lithium battery is arranged in the battery box; the socket is fixed at the bottom of the battery box and is electrically connected with the lithium battery, and the socket is arranged opposite to the plug arranged on the battery fixing plate; the battery fixing plate comprises a battery box, fixing blocks and a fixing frame, wherein the fixing blocks are fixed at the bottom of the battery box and symmetrically provided with two fixing chutes, and the fixing chutes are movably inserted at two sides of the battery fixing plate; the anti-falling shaft is fixed at the top of the battery box and is positioned on one side of one fixed block; the anti-disengaging hook is rotatably installed on the anti-disengaging shaft, and is provided with a wrench part and a hook part, wherein the hook part is positioned at one end of the fixed sliding chute and is arranged opposite to the locking groove on the battery fixing plate; the torsion spring is movably inserted on the anti-falling shaft and is respectively connected with the fixed block and the anti-falling hook, so that the hook part of the anti-falling hook is kept inserted in the locking groove.

The battery pack is simple in structure, the anti-disengaging hook can ensure that the battery does not fall off when in use, and meanwhile, the battery pack is convenient to disassemble and assemble.

Preferably, the protection device further comprises: the insulating cover is arranged on the battery fixing plate and is positioned above the plug; the first side plate is fixed on one side of the battery fixing plate, and a first sliding groove is formed in the first side plate; the second side plate is fixed on the other side of the battery fixing plate, a second sliding groove corresponding to the first sliding groove is formed in the second side plate, and the first side plate and the second side plate are respectively located on two sides of the insulating cover; a protective cover slidably mounted in the first sliding groove and the second sliding groove; a spring mounted in the first sliding groove and the second sliding groove, and connected with the protective cover, and pushing the protective cover to the upper side of the plug.

Through adopting above-mentioned technical scheme, protection device is used for the protection plug, and the safety cover is located the top of plug when not packing into battery pack, avoids the plug to be damaged, warp etc. by the bruise, prevents that the plug after the deformation can not insert on battery pack's socket.

Preferably, the switch assembly comprises a switch handle and a press switch, two ends of the switch handle are fixed on the handle fixing plate, and the press switch is fixed on the switch handle.

Compared with the prior art, the utility model has the following beneficial effects:

the lithium electric steel rail cutting machine provided by the utility model adopts the outer rotor motor, and has the advantages of large output torque, light weight, convenience in use and labor saving.

Drawings

FIG. 1 is a schematic structural diagram of a lithium electric rail cutting machine;

FIG. 2 is a front view of a lithium electric rail cutter;

FIG. 3 is a schematic diagram of the structure of the lithium electric rail cutter after the first enclosure and the second enclosure are assembled;

fig. 4 is a schematic structural view of an outer rotor motor;

fig. 5 is a sectional view of the outer rotor motor;

fig. 6 is a bottom view of the outer rotor motor;

fig. 7 is an exploded structure view of an outer rotor motor;

FIG. 8 is a schematic view of the structure of the bottom cover;

FIG. 9 is a schematic view of the structure of the rotor;

FIG. 10 is a schematic view of a stator frame;

FIG. 11 is a schematic view of the filter cap;

fig. 12 is an exploded view of the assembly of the battery pack, the outer rotor motor, the controller and the connecting socket;

fig. 13 is a schematic structural view of a battery pack;

FIG. 14 is a schematic illustration of an exploded configuration of the protective device;

FIG. 15 is a schematic view of the structure of the protection device mounted on the connecting base;

FIG. 16 is a schematic view of the structure of the protective cover;

fig. 17 is a schematic configuration diagram of the controller.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings.

As shown in fig. 1 to 17, the lithium electric rail cutting machine includes a handle assembly, a cutting assembly, a connecting assembly, a transmission assembly, an external rotor motor 1, a connecting seat, a battery assembly 7 and a switch assembly. The cutting assembly is fixed on the outer rotor motor 1 through the connecting assembly, and the transmission assembly is respectively connected with the outer rotor motor 1 and the cutting assembly, so that the outer rotor motor 1 drives the cutting assembly to work; the connecting seat is fixed on the outer rotor motor 1, and the connecting seat and the cutting assembly are respectively positioned at two sides of the outer rotor motor 1; the battery component 7 is detachably arranged on the connecting seat; the switch component is arranged on the connecting seat; two ends of the handle component are respectively fixed on the connecting seat and the outer rotor motor 1; and the controller 68, the controller 68 is installed at one end of the external rotor motor 1, and the controller 68 is electrically connected with the external rotor motor 1, the battery assembly 7 and the switch assembly respectively.

The outer rotor motor 1 can output larger torque and reduce the volume and weight of the motor because the diameter of the rotor 3 is larger than that of the rotor 3 of the traditional inner rotor 3, namely the moment arm is larger.

Meanwhile, the motor is used as a mounting base, and all components are mounted around the outer rotor motor 1, so that connecting parts are reduced, the weight is reduced, the structure is simpler, the number of parts is less, and the cost is lower.

As shown in fig. 4 to 11, the external rotor motor 1 includes a casing 11, a top cover 12, a bottom cover 13, a stator 2, a rotor 3, or a filter 4. The top cover 12 and the bottom cover 13 are fixed on the mounting seat 111 of the casing 11 by screws and are coaxial with the casing 11, the top of the casing 11 connected with the top cover 12 is provided with a plurality of air outlet holes 112, and the air outlet holes 112 are elongated holes. The casing 11 is cylindrical, the wall thickness of the casing 11 can be made thinner, for example, the wall thickness can be made to be 2-6mm, the weight can be effectively reduced, the mounting seat 111 is convenient to mount the top cover 12 and the bottom cover 13, the strength of the casing 11 can be improved, and the mounting seat 111 can be connected with other parts of the cutting machine, so that the motor is convenient to assemble. Be equipped with fixing through hole 113 on mount pad 111, fixing through hole 113 can alleviate the weight of mount pad 111, and fixing through hole 113's both ends are equipped with the internal thread, conveniently pass through screw fixation top cap 12 and bottom 13.

The casing 11 can be made of aluminum section, and has light total weight and good heat dissipation performance.

The top cover 12 and the bottom cover 13 are also made of aluminum, and the weight is light, so that the weight of the motor is reduced.

As shown in fig. 5 and 7, the stator 2 includes a stator core 21, a winding 20, and a stator frame 22, the stator frame 22 is fixed to the bottom cover 13 by screws, the winding 20 is fixed to the stator frame 22 by the stator core 21, and the stator core 21 and the winding 20 are the stator 2, which can reduce the volume and weight.

As shown in fig. 10, the stator frame 22 includes a stator fixing plate 222 and stator posts 221, the stator posts 221 are fixed on the stator fixing plate 222, and the stator fixing plate 222 is mounted on the bottom cover 13 by screws. The fixed disc is used for fixing, the stator column 221 is used for installing the stator core 21, and the structure is stable.

As shown in fig. 9, the rotor 3 includes a permanent magnet 33, a rotating ring 30, a fan blade 31 and a motor shaft 32, and the permanent magnet 33 is fixed on the inner circumferential surface of the rotating ring 30 in an annular array and is disposed opposite to the stator core 21. The rotating ring 30, the fan blades 31 and the motor shaft 32 are of an integral structure, the motor shaft 32 and the rotating ring 30 are coaxially arranged, the fan blades 31 are positioned at the top of the rotating ring 30, the motor shaft 32 is positioned at the top of the fan blades 31, and the fan blades 31 are opposite to the air outlet holes 112 and are arranged in an annular array around the motor shaft 32; the motor shaft 32 is mounted on the top cover 12 by means of a first bearing 25 and can also be connected to the stator frame 22 by means of a bearing.

Because the rotor 3 of the outer rotor motor 1 is sleeved on the stator 2, the diameter of the rotor 3 of the outer rotor 3 is larger than that of the rotor 3 of the inner rotor 3 with the same size, the outer rotor motor 1 can provide larger output torque, and in the motor with the same diameter, the torque provided by the outer rotor 3 is larger without changing the volume, so that under the condition of outputting the same torque, the diameter of the outer rotor motor 1 can be smaller, the structure is more compact, and the weight is lighter.

In some embodiments, the motor shaft 32 is rotatably connected to the stator frame 22 through the connecting shaft 23, wherein the stator frame 22 includes a stator fixing plate 222 and a stator post 221, the stator post 221 is fixed on the stator fixing plate 222, the stator post 221 and the stator fixing plate 222 are an integral structure, and the stator fixing plate 222 is mounted on the bottom cover 13 through screws. The stator column 221 is provided at both ends thereof with a second bearing 26 and a third bearing 27, respectively, and a backing ring 24 is further provided between the second bearing 26 and the third bearing 27, the backing ring 24 being in contact with inner rings of the second bearing 26 and the third bearing 27. The connecting shaft 23 is mounted on the second bearing 26 and the third bearing 27, and is fixedly connected with the motor shaft 32, and is coaxial therewith.

The connecting shaft 23 penetrates through the whole stator 2, so that the stability is better, the radial bearing capacity of the motor shaft 32 is improved, and the motor shaft 32 can stably rotate on the axis.

In some embodiments, the connecting shaft 23 is further mounted on the bottom cover 13 through a fourth bearing 28, and the fourth bearing 28 can improve concentricity of the connecting shaft 23 and the stator 2, improve stability of the connecting shaft 23, and reduce axial deviation caused by radial force.

The connecting shaft 23 is positioned through the bottom cover 13, so that the stability is better, the concentricity of the stator 2 and the rotor 3 during assembly can be ensured, the assembly is more convenient, and the assembly efficiency is improved.

The bottom cover 13 is provided with a plurality of air inlet holes 132, and the filter 4 is fixed on the bottom cover 13 and used for filtering air, so that other impurities after iron powder enter the motor to protect the motor. The air inlet openings 132 are circular arc-shaped openings and are arranged in an annular array. An outlet hole 133 is further formed at an edge of the bottom cover 13 for inserting a wire. The wire outlet 133 is provided with a rubber ring, which seals the wire with the wire outlet 133 and prevents air from entering the motor through the wire outlet 133 without being filtered.

As shown in fig. 5 and 7, the filter 4 includes: the filter plate is movably arranged in the filter cover 40, the filter cover 40 is arranged on the bottom cover 13 through screws, a plurality of filter holes 402 are formed in the filter cover 40, and the filter holes 402 are arranged in an annular array. The filter cover 40 fixes the filter plate, so that the filter plate is convenient to disassemble and assemble and replace.

One side of the filter cover 40 is provided with a wire passing groove 403, and the wire passing groove 403 is arranged opposite to the wire outlet hole 133.

The filter can be changed according to in service behavior, guarantees good air inlet performance, and then guarantees reliable heat dissipation. The filter cover 40 is mounted on the bottom cover 13 through screws, so that the filter plate can be conveniently replaced.

The filter includes the filter screen board of a plurality of different mesh numbers, and sets gradually. Specifically, the filter comprises three layers of filter screen plates, wherein a coarse filter screen plate, a medium filter screen plate and a fine filter screen plate are sequentially arranged from the filter cover 40 to the bottom cover 13, so that the step-by-step filtration is performed, the filter effect is ensured, the service life of the filter screen plates is prolonged, and the replacement times are reduced.

The bottom of the bottom cover 13 is provided with a first positioning ring 131; the bottom of the filter cover 40 is provided with a second positioning ring 401, the second positioning ring 401 is opposite to the first positioning ring 131, and the filter screen plate is located in the first positioning ring 131 and the second positioning ring 401.

The first positioning ring 131 and the second positioning ring 401 can limit the position of the filter plate, so that the filter plate always covers the air inlet 132 without position deviation, and therefore air entering the motor is filtered by the filter plate, and the motor is effectively protected.

In some embodiments, a magnetic ring 43 is further included, and the magnetic ring 43 is fixed in the filter cover 40 and located between the filter plate and the bottom cover 13.

The magnetic ring 43 can adsorb the tiny iron powder passing through the filter screen plate through magnetic force, so that the motor is protected, and the maintenance time of the motor is prolonged. The mesh number of the filter screen plate cannot be too small, otherwise, the wind resistance is large, the air suction is difficult, and the heat dissipation is poor, so that iron powder with a small diameter cannot be filtered, the iron powder enters the interior of the motor and can be gathered on the permanent magnet 33, the work is influenced, regular cleaning is needed, fine iron powder can be effectively prevented from entering the interior of the motor through the magnetic ring 43, the cleaning time of the motor is prolonged, the faults of the motor can be effectively reduced, the maintenance frequency is reduced, and the use is convenient.

The fan blade 31 is integrated on the rotor 3 to realize synchronous rotation, the fan blade 31 discharges hot air through the air outlet 112 on the casing 11, the air filtered by the filter 4 is pumped into the motor when the fan blade 31 exhausts, the stator 2 part is radiated, the winding 20 is kept at a lower temperature, and then the long-time continuous work is stably carried out, the filter 4 filters iron powder and sundries, and the motor is prevented from being damaged.

As shown in fig. 17, the controller 68 is provided with a plurality of heat sinks 681 and connecting studs 682 at the bottom thereof, the controller 68 is mounted on the filter 4 through the connecting studs 682, and the heat sinks 681 are disposed opposite to the air inlet holes 132, so that the heat sinks 681 are radiated when the air is introduced into the air inlet holes 132.

The controller 68 dissipates heat by means of the fan blades 31 of the motor, so that the utilization rate of the fan blades 31 is greatly improved, the heat dissipation of the motor can be ensured, the heat dissipation of the controller 68 is realized, multiple purposes of one fan blade 31 are realized, the structure is simplified, a heat dissipation system is formed, and reliable heat dissipation is realized. Because the heating value of the controller 68 is less than that of the motor, the influence of the air after the heat dissipation of the controller 68 on the heat dissipation of the motor is small, the heat dissipation problem of the existing controller 68 is solved, and the heat dissipation effect of the controller 68 is improved.

As shown in fig. 12, the connection base includes a battery fixing plate 77 and a handle fixing plate 64, the battery fixing plate 77 and the handle fixing plate 64 are both fixed on a mounting base 111 on the outer rotor motor 1, the top of the handle fixing plate 64 is also fixed at the bottom of the battery fixing plate 77, the battery assembly 7 is detachably mounted on the battery fixing plate 77, one end of the handle assembly is fixed on the handle fixing plate 64, and the switch assembly is mounted on the handle fixing plate 64.

The connecting seat realizes the installation with battery pack 7, handle subassembly and switch module, has simplified the structure.

As shown in fig. 12 and 13, the battery assembly 7 includes: a lithium battery; a battery case 71 in which a lithium battery is mounted; a socket 73, wherein the socket 73 is fixed at the bottom of the battery box 71 and is electrically connected with the lithium battery, and the socket 73 is arranged opposite to the plug 78 arranged on the battery fixing plate 77; the fixing blocks 74 are fixed at the bottom of the battery box 71 and are symmetrically arranged, the fixing blocks 74 are provided with fixing chutes 741, and the fixing chutes 741 are movably inserted into two sides of the battery fixing plate 77; the anti-falling shaft 76 is fixed at the top of the battery box 71, and the anti-falling shaft 76 is positioned at one side of one fixed block 74; the anti-disengaging hook 75 is characterized in that the anti-disengaging hook 75 is rotatably arranged on the anti-disengaging shaft 76, a wrench part 751 and a hook part 752 are arranged on the anti-disengaging hook 75, and the hook part 752 is positioned at one end of the fixed sliding groove 741 and is opposite to a locking groove 771 on the battery fixing plate 77; the torsion spring 72, the torsion spring 72 is movably inserted on the anti-drop shaft 76 and is respectively connected with the fixing block 74 and the anti-drop hook 75, so that the hook portion 752 of the anti-drop hook 75 is kept inserted in the locking groove 771.

The battery component 7 has a simple structure, the anti-falling hook 75 can ensure that the battery does not fall off when in use, and the disassembly and the assembly are convenient. The battery assembly 7 is disassembled by removing the hook portion 752 from the locking groove 771 by the trigger portion 751, and then extracting the battery assembly 7. The battery component 7 has a simple structure, the anti-falling hook 75 can ensure that the battery does not fall off when in use, and the disassembly and the assembly are convenient.

The top of battery box 71 is equipped with bracelet 711 and display screen 712, and display screen 712 shows parameters such as electric quantity.

As shown in fig. 14 to 16, the protection device further includes: an insulating cover 85, the insulating cover 85 being mounted on the battery fixing plate 77 and located above the plug 78; a first side plate 82, the first side plate 82 is fixed at one end of the battery fixing plate 77, and a first sliding groove 821 is arranged on the first side plate 82; a second side plate 84, the second side plate 84 is fixed on the other side of the battery fixing plate 77, a second sliding groove 841 corresponding to the first sliding groove 821 is arranged on the second side plate 84, and the first side plate 82 and the second side plate 84 are respectively positioned on two sides of the insulating cover 85; a protective cover 81, the protective cover 81 being slidably fitted in the first and second sliding grooves 821, 841; and a spring 83, the spring 83 being installed in the first and second sliding grooves 821 and 841 and connected to the shield 81 to push the shield 81 above the plug 78.

As shown in fig. 16, the protective cover 81 is U-shaped, the sliding plates 812 are symmetrically disposed on both sides of the protective cover 81, the positioning plates 813 are disposed on the sliding plates 812, the sliding plates 812 and the positioning plates 813 are movably inserted into the first sliding groove 821 and the second sliding groove 841, the positioning plates 813 limit the up-and-down movement of the insulating cover 85, the protective cover 81 can slide in the first sliding groove 821 and the second sliding groove 841 in a horizontal state by sliding, and both ends of the spring 83 are respectively pressed on one side of the sliding groove and the positioning plates 813.

A closing plate 84 is mounted on each of the first side plate 82 and the second side plate 84, and the closing plate 84 closes the first sliding groove 821 and the second sliding groove 841 to prevent the spring 83 from being disengaged from the first sliding groove 821 and the second sliding groove 841.

The protection device is used for protecting the plug 78, and the protection cover 81 is positioned above the plug 78 when the battery pack 7 is not installed, so that the plug 78 is prevented from being damaged, deformed and the like, and the deformed plug 78 is prevented from being inserted into the socket 73 of the battery pack 7.

The battery fixing plate 77 is further symmetrically provided with two supporting guide rails 772, the supporting guide rails 772 reduce the contact area between the battery box 71 and the battery fixing plate 77, the friction force is reduced, and the battery assembly 7 is convenient to disassemble and assemble.

The wire guide cover 67 is further included, and the wire guide cover 67 is installed on the first side plate 82, is arranged opposite to the wire passing groove 403, and is used for protecting a wire connected with the controller 68 by the motor.

The switch assembly comprises a switch handle 62 and a press switch 63, wherein the switch handle 62 is U-shaped, two ends of the switch handle 62 are fixed on a handle fixing plate 64, and the press switch 63 is fixed on the switch handle 62.

The handle assembly comprises a handle pipe 61, a first connector 65 and a second connector 66, the handle pipe 61 is formed by bending a steel pipe, two ends of the handle pipe 61 are fixed on the handle fixing plate 64 through the first connector 65 respectively, and are fixed on the mounting seat 111 at the bottom of the machine shell 11 through the second connector 66.

The connection assembly includes a first fixing case 54, a second fixing case 58, a first housing 59, and a second housing 53, the first fixing case 54 is fixed to the outer rotor motor 1, the second fixing case 58 is mounted on the first fixing case 54 by screws, the first housing 59 is fixed to the first fixing case 54, and the second housing 53 is fixed to the second fixing case 58. Wherein the position of the second stationary shell 58 can be adjusted to achieve the tension of the multi-wedge belt 56.

The cutting assembly comprises a main shaft 50, a cutting blade 51 and a protective cover 52, wherein the cutting blade 51 is installed on the main shaft 50, the main shaft 50 is installed on the protective cover 52 through a bearing, the cutting blade 51 is also positioned in the protective cover 52, and the protective cover 52 is installed on a second fixed shell 58.

The transmission assembly comprises a driving pulley 57, a driven pulley 55 and a plurality of wedge belts 56, wherein the driving pulley 57 is installed on the motor shaft 32, the driven pulley 55 is installed on the main shaft 50, and the plurality of wedge belts 56 are respectively connected with the driving pulley 57 and the driven pulley 55.

The connecting assembly, the cutting assembly and the transmission assembly are existing mature products and are not described in detail.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, which shall fall within the scope of the appended claims.

Claims (10)

1. Lithium electricity rail cutting machine, including handle assembly, cutting assembly, coupling assembling and drive assembly, its characterized in that still includes:

the cutting assembly is fixed on the outer rotor motor through the connecting assembly, and the transmission assembly is respectively connected with the outer rotor motor and the cutting assembly so that the outer rotor motor drives the cutting assembly to work;

the connecting seat is fixed on the outer rotor motor and is respectively positioned at two sides of the outer rotor motor together with the cutting assembly;

the battery component is detachably arranged on the connecting seat;

the switch assembly is arranged on the connecting seat;

two ends of the handle assembly are respectively fixed on the connecting seat and the outer rotor motor; and

the controller is installed at one end of the outer rotor motor and is electrically connected with the outer rotor motor, the battery assembly and the switch assembly respectively.

2. A lithium electric rail cutter according to claim 1, characterized in that the external rotor motor comprises: the air conditioner comprises a machine shell, a top cover, a bottom cover, a stator, a rotor and a filter, wherein the top of the machine shell is provided with an air outlet hole;

the stator comprises a stator core, a winding and a stator frame, the stator frame is fixed on the bottom cover, and the winding is fixed on the stator frame through the stator core;

the rotor comprises a permanent magnet, a rotating ring, fan blades and a motor shaft, the permanent magnet annular array is fixed on the inner circular surface of the rotating ring and is arranged opposite to the stator core, the motor shaft is fixed at the top of the rotating ring through the fan blades, the motor shaft is respectively connected with the stator frame and the top cover in a rotating mode, and the fan blades are arranged opposite to the air outlet and are arranged around the motor shaft annular array;

the filter is fixed on the bottom cover and filters air entering the air inlet hole on the bottom cover;

the lateral surface of casing is equipped with a plurality of mount pad, the connecting seat with handle component all with the mount pad is connected.

3. The lithium electric rail cutter according to claim 2, further comprising: the connecting shaft is arranged on the stator frame through a second bearing and a third bearing and is connected with the motor shaft;

the motor shaft is mounted on the top cover through a first bearing.

4. A lithium electric rail cutter according to claim 2, characterized in that the filter comprises: the filter is installed in the filter cover, the filter cover is installed on the bottom cover, and a plurality of filter holes are formed in the filter cover.

5. A lithium electric steel rail cutting machine according to claim 4, characterized in that the filter plate includes a plurality of filter screen plates with different mesh numbers, and the filter screen plates are arranged in sequence.

6. A lithium electric steel rail cutting machine according to claim 4, characterized in that, further comprises a magnetic ring, the magnetic ring is fixed in the filter cover and is located between the filter plate and the bottom cover.

7. The lithium battery steel rail cutting machine according to claim 2, wherein a plurality of cooling fins and connecting studs are arranged at the bottom of the controller, the controller is mounted on the filter through the connecting studs, and the cooling fins are arranged opposite to the air inlet holes, so that the cooling fins are cooled when air enters the air inlet holes.

8. A lithium electric steel rail cutting machine according to claim 1, wherein the connecting base includes a battery fixing plate and a handle fixing plate both fixed to the outer rotor motor, the top of the handle fixing plate is further fixed to the bottom of the battery fixing plate, the battery assembly is detachably mounted on the battery fixing plate, one end of the handle assembly is fixed to the handle fixing plate, and the switch assembly is mounted on the handle fixing plate.

9. A lithium battery steel rail cutter according to claim 8, characterized in that the battery pack comprises:

a lithium battery;

the lithium battery is arranged in the battery box;

the socket is fixed at the bottom of the battery box and is electrically connected with the lithium battery, and the socket is arranged opposite to the plug arranged on the battery fixing plate;

the battery fixing plate comprises a battery box, fixing blocks and a fixing frame, wherein the fixing blocks are fixed at the bottom of the battery box and symmetrically provided with two fixing chutes, and the fixing chutes are movably inserted at two sides of the battery fixing plate;

the anti-falling shaft is fixed at the top of the battery box and is positioned on one side of one fixed block;

the anti-disengaging hook is rotatably installed on the anti-disengaging shaft, and is provided with a wrench part and a hook part, wherein the hook part is positioned at one end of the fixed sliding chute and is arranged opposite to the locking groove on the battery fixing plate;

the torsion spring is movably inserted on the anti-falling shaft and is respectively connected with the fixed block and the anti-falling hook, so that the hook part of the anti-falling hook is kept inserted in the locking groove.

10. A lithium electric rail cutter according to claim 9, characterized by further comprising a protection device, the protection device comprising:

the insulating cover is arranged on the battery fixing plate and is positioned above the plug;

the first side plate is fixed on one side of the battery fixing plate, and a first sliding groove is formed in the first side plate;

the second side plate is fixed on the other side of the battery fixing plate, a second sliding groove corresponding to the first sliding groove is formed in the second side plate, and the first side plate and the second side plate are respectively located on two sides of the insulating cover;

a protective cover slidably mounted in the first sliding groove and the second sliding groove;

a spring mounted in the first sliding groove and the second sliding groove, and connected with the protective cover, and pushing the protective cover to the upper side of the plug.

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