CN110447408B

CN110447408B - Modular installation structure of chain saw

Info

Publication number: CN110447408B
Application number: CN201910619536.4A
Authority: CN
Inventors: 金银刚; 陈洁; 李鹏
Original assignee: Zhejiang YAT Electrical Appliance Co Ltd
Current assignee: Zhejiang YAT Electrical Appliance Co Ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2024-05-07
Anticipated expiration: 2039-07-10
Also published as: CN110447408A

Abstract

The invention discloses a modularized mounting structure of a chain saw, which belongs to the field of electric tools and garden tools, wherein the chain saw comprises a shell, the shell comprises a right shell and a left shell, a motor gear assembly, a motor switch and a power cord are arranged in the shell, the motor gear assembly comprises a stator assembly, one end of the switch is connected with the stator assembly, the other end of the switch is connected with the power cord, the motor gear assembly, the motor switch and the power cord form a switch power cord motor gear assembly module, the switch power cord motor gear assembly module is integrally mounted on the shell, components in the chain saw are modularized, the mounting steps are simplified, the mounting difficulty is reduced, the automatic mounting is realized, and the mounting efficiency is improved.

Description

Modular installation structure of chain saw

[ Field of technology ]

The invention relates to the field of electric tools and garden tools, in particular to a modularized mounting structure of a chain saw.

[ Background Art ]

The chain saw is a woodworking electric tool for sawing by using a rotary chain saw blade, along with the improvement of the living standard of people, the requirement on environmental protection is higher and higher, thereby promoting the rapid development of the garden industry, along with the development and popularization of mechanical tools, the chain saw rapidly occupies the market by the characteristics of energy conservation, portability and the like, becomes an essential electric tool for pruning garden plants, the demand is larger and larger, the components contained in the chain saw are more, the components are mainly locked on a shell through auxiliary materials such as screws and the like in the assembly of the chain saw at present, the logistics and warehouse cost are increased, the installation difficulty is higher, the steps are complex, the manual installation is mainly relied on, only a small part of the components can be assembled by the machine, the automation degree is low, the production and assembly efficiency is seriously influenced, the automatic installation is not facilitated, meanwhile, the metal materials such as the screws are easy to rust and fall off, the potential safety hazard and the maintenance cost in the use process are increased, the adverse factors are used, the development of the chain saw is limited, and the chain saw is difficult to adapt to the rapid market competition.

[ Invention ]

The invention aims to solve the technical problems that the components in the chain saw are modularized, the installation steps are simplified, the installation difficulty is reduced, the automatic installation is realized, and the installation efficiency is improved.

The invention solves the technical problems and adopts the technical scheme that:

The utility model provides a chain saw modularization mounting structure, chain saw includes the casing, and the casing includes right casing and left casing, is equipped with motor gear subassembly, switch and power cord in the casing, and motor gear subassembly includes stator assembly, and the one end and the stator assembly of switch are connected, and the other end and the power cord of switch are connected, and motor gear subassembly, motor switch and power cord constitute switching power cord motor gear subassembly module, and switching power cord motor gear subassembly module is whole to be installed on the casing.

By adopting the structure, the power line, the switch and the motor gear assembly are firstly installed to form the module, then the module is wholly installed on the shell, the module is installed in a modularized mode, the installation process is simplified, the installation difficulty is reduced, the unmanned workshop machine assembly line operation is facilitated, the installation efficiency and the installation accuracy are improved, automation can be completely realized no matter the module is built or installed on the shell, the labor force is replaced by a machine, the labor intensity is reduced, the labor cost is saved, the automation degree is improved, and the future development requirement and trend of the manufacturing industry are met.

Preferably, a power line fixing groove for fixing a power line is formed in the inner side of the right casing, and a horizontal S-shaped limiting group and a vertical S-shaped limiting group for clamping the power line are arranged in the power line fixing groove.

The power line is firmly locked in the power line fixing groove along the arrangement direction through the horizontal S-shaped limit group and the vertical S-shaped limit group in an omnibearing manner, so that the locking of the power line is firmer, and the power line in the shell can not be pulled even if a larger force is used for dragging the power line outside, thereby further improving the stability of a switch and a motor gear assembly in the module in the shell.

Preferably, the power line fixing groove comprises an upper S-shaped rib position and a lower S-shaped rib position which are identical in shape, longitudinal raised strips are arranged on the inner sides of the upper S-shaped rib position and the lower S-shaped rib position, a horizontal S-shaped limit group for clamping the power line is formed by the raised strips, a longitudinal first upper rib is arranged at the bottom of the horizontal fixing groove, a longitudinal second upper rib and a longitudinal third upper rib are arranged at the corresponding position of the horizontal fixing groove on the left casing, the first upper rib, the second upper rib and the third upper rib form a vertical S-shaped limit group, and the power line is locked in a horizontal plane and a vertical plane by utilizing the characteristic of highest stability of a triangle, so that the power line cannot loosen in every direction.

Preferably, the motor gear assembly comprises a wind shield and an output shaft, wherein the wind shield and the output shaft are arranged on the shell, the output shaft penetrates out of the right shell, stud holes are formed in the wind shield, and studs corresponding to the stud holes are arranged on the inner side of the right shell.

The output shaft of the motor gear assembly penetrates through the right shell, meanwhile, the stud of the right shell extends out to penetrate through the stud hole of the wind shield at one end, the combined structure has a guiding installation effect, the installation of the whole assembly module is more accurate and rapid, the installation efficiency is improved, the stud connection mode structure is compact, and the space is saved.

As the preference, be equipped with the switch groove on the right casing, switch and switch inslot wall interference connection, the switch card is gone into in the switch groove, utilizes the size interference fit of switch and switch groove, firmly fixes the switch, is difficult for droing, has cancelled traditional screw and clamp plate lock and has paid the mode, has simplified installation material and step, has reduced the installation degree of difficulty, improves the installation degree of accuracy, is favorable to realizing automatic installation.

Preferably, the shell is internally provided with an oil tank assembly and a pump assembly, one end of the pump assembly is connected with the oil tank assembly through a first oil pipe, the other end of the pump assembly is connected with a second oil pipe, the oil tank assembly, the pump assembly, the first oil pipe and the second oil pipe form an oil circuit assembly module, and the oil circuit assembly module is integrally mounted on the right shell.

The oil tank, the oil pipe and the pump assembly are connected to form the oil circuit assembly module, the whole module is mounted on the right casing, the mounting process is simplified, the mounting difficulty is reduced, the unmanned workshop machine assembly line operation is facilitated, the mounting efficiency and accuracy are improved, automation can be completely realized no matter the module is built or mounted on the casing, the labor is replaced by a machine, the labor intensity is reduced, the labor cost is saved, the automation degree is improved, and the future development requirement and trend of the manufacturing industry are met.

Preferably, the pump assembly is provided with a first mounting hole and a second mounting hole which are positioned at two sides of the pump assembly, the diameter of the first mounting hole is larger than that of the second mounting hole, and the inner side of the right shell is provided with a first pump assembly mounting column matched with the first mounting hole and a second pump assembly mounting column matched with the second mounting hole.

The mounting column on the inner side of the right casing and the mounting hole on the pump assembly are matched to have the function of guiding mounting, meanwhile, the diameters of the two mounting holes are different, the mounting direction of the pump is guaranteed not to be misplaced, the mounting efficiency and the mounting accuracy are improved, the mounting modularization is realized, the mounting process is simplified, and the automatic mounting is facilitated.

Preferably, the inner side of the right casing is provided with an oil pipe mounting column, the oil pipe mounting column is provided with a through hole extending to the outer side of the right casing along the axial direction, and the free end of the second oil pipe which is not connected with the pump assembly is sleeved on the oil pipe mounting column and is sealed and fixed with the oil pipe mounting column.

The second oil pipe is directly connected with the oil pipe mounting column on the right shell by utilizing the self size, the locking screw structure is canceled, materials are saved, the operation is simple, the mounting process is simplified, and the automatic mounting is facilitated.

Preferably, the right casing is provided with an end cover assembly module, the end cover assembly module is connected with the right casing in a buckling manner, the end cover assembly module comprises an end cover and a sealing gasket arranged in the end cover, a third mounting hole is formed in the sealing gasket, a sealing gasket mounting column matched with the third mounting hole is arranged on the end cover, and the third mounting hole is in interference connection with the sealing gasket mounting column.

The assembly is characterized in that after the components in the cover plate assembly are assembled to form the module, the module is assembled on the outer side of the right casing in a modularized manner, automatic assembly is facilitated, lubricating oil flows out of the right casing through an oil pipe under the action of the pump assembly to prevent rust and lubrication of a guide plate and a chain, lubricating oil flows into an end cover and flows out of the end cover, a sealing gasket is arranged in the end cover, the sealing gasket can block an oil outlet on the guide plate, the sealing gasket is assembled on the end cover to cancel viscose water fixation, the sealing gasket is assembled on the end cover more firmly by utilizing the elastic characteristic of the sealing gasket, the assembly cost is saved, and the production efficiency is improved.

As the preference is equipped with the axle sleeve on the end cover, the hole of axle sleeve is oval type structure, compares in the circular type structure that uses now, and oval type structure can avoid because the material piece warp when moulding plastics the axle sleeve, makes the hole dislocation between bolt and the axle sleeve, leads to the end cover subassembly difficult to install.

Preferably, the left casing comprises a plate-shaped casing and an outer casing arranged on the plate-shaped casing and covered outside the chain saw motor, the left casing is provided with a handle part, one end of the outer casing, far away from the plate-shaped casing, is provided with a motor rear cover, the motor rear cover is provided with a first handle, the motor rear cover is provided with a rotary buckle, the side wall of the outer casing is provided with a horizontal clamping groove which is matched and locked with the rotary buckle and is provided with an opening at one side, and the rotary buckle is fixedly connected with the handle part after being screwed into the horizontal clamping groove.

The locking of motor rear cover and left casing adopts rotatory buckle to connect the form, has reduced the installation material in current bolted connection etc. and behind rotatory buckle screw in horizontal draw-in groove, first handle and handle portion fixed connection prevent that the motor rear cover from rotating relative dustcoat, and the locking effect is better more firm, can not appear the protection casing and appear landing or drop the phenomenon in the dustcoat in the use.

Preferably, the motor rear cover inner wall is provided with a guide reinforcing rib for mounting the motor rear cover, the upper end of the guide reinforcing rib protrudes out of the upper edge of the motor rear cover, and the guide reinforcing rib of the motor rear cover is inserted into the outer cover of the left shell during mounting, so that the motor rear cover has a guide positioning function, the mounting accuracy is improved, and automatic mounting is facilitated.

Preferably, the shell is provided with a protection plate, the protection plate is connected with the shell in a buckling manner, the protection plate is provided with a mounting part, the mounting part comprises a positioning groove and a buckle arranged at the notch of the positioning groove, the outer side of the left shell is provided with a mounting groove, a positioning column matched with the positioning groove is arranged in the mounting groove, the positioning column is inserted into the positioning groove for mounting and positioning, and the bottom of the mounting groove is provided with a clamping groove matched with the buckle close to the positioning column.

When the protection plate is installed, the positioning column is inserted into the positioning groove to be positioned and pre-installed, after the positioning column is properly positioned, the positioning column is continuously inserted downwards, the third buckle is clamped into the third clamping groove, the protection plate is installed and locked on the left shell, the traditional screw is replaced by the third buckle for installation, the operation is simpler, more convenient and more firm, the operation is easy, the positioning column and the positioning groove are matched to have an installation guiding function, and the installation automation is facilitated.

These features and advantages of the invention will be disclosed in more detail in the following detailed description and accompanying drawings.

[ Description of the drawings ]

The invention is further described with reference to the accompanying drawings:

FIG. 1 is a schematic view of a chain saw of the present invention in a perspective view;

FIG. 2 is a schematic view of the inside perspective of the right housing of the inventive chain saw;

FIG. 3 is a schematic view of the perspective of the accessory on the left housing of the inventive chain saw;

FIG. 4 is a schematic view of the invention motor gear assembly and oil circuit assembly mounted on the right housing;

FIG. 5 is a schematic perspective view of the motor gear assembly of the present invention mounted on the right housing;

FIG. 6 is an exploded view of the inventive power cord switch motor gear assembly;

FIG. 7 is a schematic perspective view of a rear bracket of the motor of the invention;

Fig. 8 is a schematic perspective view of another view of the rear bracket of the motor according to the present invention.

Fig. 9 is an enlarged view of part of the invention at a in fig. 8.

Fig. 10 is a schematic perspective view of the invention grip brush.

FIG. 11 is a schematic view of the oil circuit assembly of the present invention mounted on a right housing.

Fig. 12 is a schematic view of the inventive fuel tank.

Fig. 13 is a schematic view of the rubber gasket structure in the fuel tank cap of the invention.

Fig. 14 is a schematic perspective view of an inventive pump assembly.

Fig. 15 is a schematic view showing the structure of the invention adjusting lever assembly installed on the outer side of the right casing.

FIG. 16 is a schematic view of the structure of the inventive adjustment lever assembly.

FIG. 17 is a schematic view of an inventive chain saw and guide plate mounting structure.

Fig. 18 is an exploded view of the right housing outer mounting member of the invention.

Fig. 19 is an exploded view of the end cap assembly of the present invention.

Fig. 20 is a schematic view of the outer side of the left casing of the invention.

[ Detailed description ] of the invention

The technical solutions of the embodiments of the invention are explained and illustrated below with reference to the drawings of the embodiments of the invention, but the embodiments described below are only preferred embodiments of the invention, not all. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention.

In the following description, directional or positional relationships such as the terms "inner", "outer", "upper", "lower", "left", "right", etc., are presented for convenience in describing the embodiments and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

As shown in fig. 1 to 20, a chain saw mounting structure, which comprises a housing, the housing includes left casing 1 and right casing 2, be equipped with power cord switch motor gear assembly in the casing, power cord switch motor gear assembly includes motor gear assembly, with the switch 32 of motor gear assembly' S stator assembly 344 connecting wire connection and connect the power cord 33 at the switch 32 other end, be equipped with the oversheath 331 of direct injection moulding on the power cord 33, motor gear assembly includes output shaft 371 and deep bead 31, the one end of output shaft 371 passes right casing 2, be equipped with rotatory supporter between output shaft 371 and the right casing 2, rotatory supporter in this embodiment is the fourth bearing, be equipped with the fourth bearing hole in the right casing 2, the deep bead is outside wheel and fourth bearing hole interference fit, fourth bearing in-wheel and output shaft 371 transition fit, be equipped with stud hole 311 on the deep bead 31, the right casing 2 inboard is equipped with the double-screw bolt 22 that corresponds with stud hole 311, establish the inboard and switch groove 23 of switch 32 lateral wall interference contact with, establish the horizontal S type power cord fixed slot 24 of the fixed power cord of both ends opening on the right casing inboard and establish the oversheath fixed slot of the power cord fixed slot 4 on the casing lateral wall 331 of blocking on the right casing.

By adopting the structure, the power line 33, the switch 32 and the motor gear assembly are firstly installed to form an assembly module, and then the whole assembly is installed on the shell, so that the installation modularization is realized, the installation process is simplified, the installation difficulty is reduced, the installation efficiency and accuracy are improved, and the automatic installation is facilitated. The output shaft 371 of motor gear assembly passes right casing 2, the double-screw bolt 22 of right casing 2 stretches out at outer one end and passes the double-screw bolt hole 311 of deep bead 31 simultaneously, this integrated configuration has the direction installation effect, make the installation of whole subassembly module more accurate swift, and improved installation effectiveness, stud 22 connected mode structure is compact, save space, motor gear assembly installs behind right casing 2, with switch 32 card income switch groove 23, utilize the size interference fit of switch 32 and switch groove 23, firmly fix switch 32, be difficult for droing, it is fixed to lock power cord 33 card income level S type power cord fixed slot 24, make power cord 33 can not rock from top to bottom in the vertical direction, the horizontal direction also be difficult for being stretched, the locking is firm, oversheath 331 on the power cord 33 is direct injection molding on power cord 33, with power cord 33 integrated into one piece, processing is convenient, reduce the material, oversheath 331 card income outer protection cord fixed slot 4, utilize self size and outer protection cord fixed slot 4 to cooperate the back, power cord 33 in the casing can not be pulled, stability of the part in the motor casing has been guaranteed, install the degree of accuracy and the installation effectiveness of installing the clamp plate 33 or the installation, the realization is easy to take advantage of the installation step, the improvement of the installation difficulty of installing the clamp plate in the automatic mounting mode, the step is simplified, and the realization of installing step has been reduced.

As shown in fig. 2, 4,5 and 11, the power cord fixing groove 24 includes an upper S-shaped rib position and a lower S-shaped rib position with the same shape, a raised line 241 perpendicular to the power cord 33 is provided on the inner side of the upper S-shaped rib position, a raised line 241 perpendicular to the power cord 33 is provided on the inner side of the lower S-shaped rib position, the raised line 241 is in interference fit with the power cord 33, the raised line 241 forms a horizontal S-shaped limit group, as shown in fig. 11, a first upper rib 242 along the width direction of the wavy power cord fixing groove 24 is provided at the bottom of the wavy power cord fixing groove 24, as shown in fig. 3, a second upper rib 243 and a third upper rib 244 parallel to the first upper rib 242 are provided at the corresponding position of the wavy power cord fixing groove 24 on the left casing 1, and the first upper rib 242, the second upper rib 243 and the third upper rib 244 form a vertical S-shaped limit group.

The horizontal S-shaped limit group and the vertical S-shaped limit group firmly lock the power cord 33 in the power cord fixing groove 24, so that the locking of the power cord 33 is firmer, and the power cord 33 in the casing is not pulled even if the power cord 33 outside is dragged by a larger force, thereby further improving the stability of the switch 32 and the motor gear assembly in the casing.

As shown in fig. 6, the chain saw motor gear assembly comprises a stator assembly 34, the stator assembly 34 comprises a motor rear bracket 341 arranged at the rear side of a stator assembly 344 and a carbon brush 342 arranged on the motor rear bracket 341, the carbon brush 342 is arranged in a brush holder 343, a brush holder mounting block is arranged on the motor rear bracket 341, a brush holder groove 3411 is arranged in the brush holder mounting block, the brush holder 343 is inserted into the brush holder groove 3411, the brush holder 343 is in clearance contact with the inner wall of the brush holder groove 3411, a fixing rib 3411a for fixing the brush holder 343 is arranged on the inner wall of the brush holder groove 3411, and as shown in fig. 8 and 9, a front buckle 3433 for clamping the front edge of an opening 3411c and a rear buckle 3434 for clamping the rear edge of the opening 3411c are arranged on the side wall of the brush holder 343.

The brush holder 343 is inserted into the brush holder groove 3411 of the motor rear bracket 341, the outer wall of the brush holder 343 is in interference contact with the fixing ribs 3411a in the brush holder groove 3411, the brush holder 343 is firmly fixed in the brush holder groove 3411, the brush holder 343 cannot shake, an opening 3411c is formed in the side wall of the brush holder groove 3411, the brush holder 343 is buckled on the brush holder groove 3411 through the front buckle 3433 and the rear buckle 3434, the front and rear of the brush holder 343 can be prevented from moving without using other auxiliary limiting modes, the stability of the brush holder 343 is improved, installation materials such as bolts and gaskets are saved, the installation steps of the brush holder 343 are simplified, and the installation efficiency is improved. The fixing rib 3411a is used for supporting the brush holder 343 in the brush holder groove 3411, the brush holder 343 and the brush holder groove 3411 have more larger gaps and are not in direct contact, and meanwhile, the opening 3411c is arranged on the side wall of the brush holder groove 3411, so that heat dissipation of the carbon brush 342 is facilitated, the service life of the carbon brush 342 is prolonged, the protecting frequency of the carbon brush 342 is reduced, and the dismounting frequency of the chain saw is reduced.

In order to further improve the heat dissipation performance of the carbon brush 342, as shown in fig. 9 and 10, a first wire passing groove 3432 through which the brush braid of the carbon brush 342 passes is provided on the brush holder 343, and a second wire passing groove 3411b is provided on the brush holder groove 3411 at a position corresponding to the first wire passing groove 3432, and an edge line of the second wire passing groove 3411b is outside an edge line of the first wire passing groove 3432.

The arrangement of the wire passing groove is favorable for outward heat dissipation of the carbon brush 342 and the brush braid, and meanwhile the wire passing groove size on the brush holder groove 3411 is larger than the wire passing groove size on the brush holder 343, so that the phenomenon that the brush braid is melted due to heating of the brush braid in the operation process of the motor, and the carbon brush 342 cannot normally touch the commutator 3513 to cause burning is prevented.

In order to make the carbon brush 342 closely contact with the commutator 3513 on the rotor assembly 351 so as to input and output current, as shown in fig. 6 and 7, a torsion spring 345 is disposed on the rear motor bracket 341, which abuts against the carbon brush 342, a torsion spring mounting post 3412 into which the torsion spring 345 is inserted and a torsion spring clamping groove 3414 abutting against a free end of the torsion spring 345 are disposed on the rear motor bracket 341 near the first wire passing groove 3432, and the other free end of the torsion spring 345 abuts against the carbon brush 342 through the second wire passing groove 3411b and the first wire passing groove 3432.

As shown in fig. 7 and 9, a wire clamping groove 3413 is formed in the rear bracket near the mounting block of the brush holder 343, and the male terminal 3423 of the carbon brush 342 is connected with the female terminal 3441 of the stator assembly 344 and then clamped into the wire clamping groove 3413 for fixing.

The stator assembly 344 and the carbon brush 342 are connected through the male terminal 3423 and the female terminal 3441, so that current flows into the carbon brush 342 through the electronic assembly, and the current is clamped into the clamping wire groove 3413 to be fixed after connection, so that the stator assembly 344 and the carbon brush 342 are fixed on the motor rear support 341, the carbon brush 342 cannot slide back and forth in the brush holder 343, the terminal is directly clamped into the clamping wire groove 3413 to be fixed by utilizing the size of the terminal, the operation is simple, materials are saved, the installation difficulty is simplified, and the automatic installation is facilitated.

As shown in fig. 6, the wind shield 31 is disposed on a side of the stator assembly 344 away from the motor rear support 341, the motor gear assembly further includes a rotor assembly 35 connected to the stator assembly 34 for cooperation, the rotor assembly 35 is disposed on a side of the wind shield 31 away from the stator assembly 344, the rotor assembly 35 includes a rotor assembly 351, a front shaft 3511 and a rear shaft 3512 are disposed on the rotor assembly 351, a first bearing is disposed on the rear shaft 3512, a second bearing is disposed on the front shaft 3511, a pinion 3514 is disposed on the front shaft, the motor rear support 341 includes a cylindrical rear seat, a first bearing hole is disposed inside the cylindrical rear seat, the rear shaft 3512 and the first bearing are in interference connection with the first bearing hole after passing through the wind shield 31 and the rotor assembly 351, a commutator 3513 is disposed on the rear shaft 3512, and the carbon brush 342 is in contact with the commutator 3513.

The connection and installation of the stator assembly 344 and the rotor assembly 351 are realized through the connection mode, the carbon brush 342 is in contact with the commutator 3513, the external current is transmitted to the rotor assembly 351, the rotor assembly 351 is made into an electrified conductor, the whole motor rotates in the magnetic field of the stator assembly 344, the chain saw is driven to rotate, and the working principle of the motor is the prior art and is not repeated.

As shown in fig. 6, a support plate 36 is disposed on a side of the rotor assembly 35 away from the stator assembly 34, a second bearing hole is disposed on a side of the support plate 36 close to the rotor assembly 351, a front shaft 3511 passes through the second bearing hole, the second bearing is disposed in the second bearing hole, positioning posts, namely, first positioning posts 312 are disposed at four corners of the wind deflector 31, positioning holes 362 are disposed at positions corresponding to the first positioning posts 312 on four corners of the support plate 36, the first positioning posts 312 are inserted into the positioning holes 362 to position the wind deflector 31 and the support plate 36, a first buckle 313 is disposed on the wind deflector 31, a first clamping groove 363 is disposed at a position corresponding to the first buckle 313 of the support plate 36, and the first buckle 313 is buckled into the first clamping groove 363 to connect the wind deflector 31 and the support plate 36.

Before the backup pad 36 is installed on the deep bead 31, insert the locating hole 362 on the deep bead 31 first location preinstallation in the first reference column 312 on the backup pad 36 earlier, improve the accuracy of installation, adopt the buckle to connect between deep bead 31 and the backup pad 36, compare in present bolted connection, the buckle is connected more firmly, saves the material, has reduced installation step and degree of difficulty, improves installation effectiveness, is favorable to automatic installation.

As shown in fig. 6, the motor gear assembly further includes an output shaft group 37, the output shaft group 37 includes an output shaft 371, a first key slot 3711 provided with a mounting key is provided on the output shaft 371, a large gear 373 is sleeved at a position where the first key slot 3711 of the output shaft 371 is located, a second key slot 3731 is provided on an inner wall of a gear hole of the large gear 373, one end of the key 372 is disposed in the first key slot 3711, the other end of the key 372 is disposed in the second key slot 3731, a shaft slot 3712 is provided outside the first key slot 3711 of the output shaft 371, a snap spring 374 is provided in the shaft slot 3712, a third bearing is provided at an outer side of the shaft slot 3712, a third bearing hole is provided at an end of the support plate 36 adjacent to the output shaft 371, a dust cover 38 is sleeved on the output shaft 371 engaged with the small gear 3514, the dust cover 38 is in snap connection with the support plate 36, a second snap fastener 381 is provided on the dust cover 38, a second snap fastener 364 is provided at a position corresponding to the second snap fastener 381, and the second snap fastener 381 is snapped into the second snap groove 364.

When the rotor rotates, the rotation of the pinion 3514 on the front shaft 3511 of the rotor assembly 351 drives the large gear 373 to rotate, the large gear 373 and the output shaft 371 are circumferentially fixed through keys, the rotation of the large gear 373 is transmitted to the output shaft 371, the output shaft 371 is driven to rotate, the dust cover 38 and the support plate 36 are connected through buckles, the connection is firmer, materials are saved, the installation steps and the difficulty are reduced, the installation efficiency is improved, and the automatic installation is facilitated.

In order to slow down the abrasion of the chain saw and maintain the normal operation of the chain saw, lubricating oil needs to be added to rotating parts frequently, as shown in fig. 11 to 13, an oil path assembly 5 is further arranged in the casing, the oil path assembly 5 comprises an oil tank 51, a pump assembly 53 connected with the oil tank 51 through a first oil pipe 52 and a second oil pipe 54 connected with the pump assembly 53, as shown in fig. 14, the pump assembly 53 comprises a pump body 531, a first mounting hole 532 and a second mounting hole 533, the diameter of the first mounting hole 532 is larger than that of the second mounting hole 533, an oil pipe mounting column 25, a first pump assembly mounting column 210 matched with the first mounting hole 532 and a second pump assembly mounting column 211 matched with the second mounting hole 533 are arranged on the inner side of the right casing 2, the pump assembly 53 is fixed on the right casing 2 through the first pump assembly mounting column 210 and the second pump assembly mounting column 211, a through hole extending to the outer side of the right casing 2 along the axial direction is arranged on the oil pipe mounting column 25, and the free end of the second oil pipe 54 is sleeved on the oil pipe mounting column 25 to be sealed and fixed with the oil pipe mounting column 25.

The oil tank 51, the oil pipe and the pump assembly 53 are connected to form an oil circuit assembly module, the whole module is mounted on the right casing 2, the second oil pipe 54 is directly connected with the oil pipe mounting column 25 on the right casing 2 by utilizing the self size, the locking screw structure is canceled, materials are saved, the operation is simple, the mounting column on the inner side of the right casing 2 and the mounting hole on the pump assembly 53 are matched to have the function of guiding mounting, meanwhile, the diameters of the two mounting holes are different, the mounting direction of the pump is guaranteed not to be misplaced, the mounting efficiency and the mounting precision are improved by the arrangement, the mounting modularization is realized, the mounting process is simplified, and the automatic mounting is facilitated.

In order to simplify the mounting portion 71, as shown in fig. 12, a through hole is provided in the bottom of the oil tank 51, and one end of the first oil pipe 52 is inserted into the through hole and is connected to the through hole in a sealed manner, and the outer peripheral diameter of the end of the first oil pipe 52 inserted into the through hole is not smaller than the diameter of the through hole.

At present, when the first oil pipe 52 is connected to the through hole at the bottom of the oil tank 51, the sealing gasket 11ab needs to be added between the first oil pipe 52 and the through hole, in this embodiment, sealing is realized through the size of the first oil pipe 52 and the through hole, materials are reduced, production and installation costs are reduced, direct insertion is realized, production and installation efficiency is improved, and automatic installation is convenient to realize.

As shown in fig. 14, the pump assembly 53 is further provided with a first port 534 connected to the other end of the first oil pipe 52 and a second port 535 connected to the second oil pipe 54, and the other end, i.e., the free end, of the second oil pipe 54 is connected to the oil pipe mounting post 25 on the right housing.

The first interface 534 that the pump links to each other with first oil pipe 52 is low pressure environment, inhale the oil in the oil tank 51 in the pump through first oil pipe 52 from the oil tank 51, the second interface 535 that links to each other with second oil pipe 54 department is high pressure environment, discharge the lubricating oil in the pump outside the casing through second oil pipe 54 and provide lubrication for baffle 9 and chain 8, according to actual service conditions, adjust the rotational speed of pump, thereby adjust the oil absorption and play oil velocity, make its lubrication best, the diameter size of two mounting holes of pump is different simultaneously, can distinguish first interface 534 and second interface 535 better more fast, avoid being connected with the mistake with first oil pipe 52 and second oil pipe 54.

As shown in fig. 12 and 13, the oil tank 51 is provided with an oil tank cover 511, the top wall of the oil tank cover 511 is provided with a third ventilation hole 5111, a rubber sealing pad 512 is arranged between the oil tank cover 511 and the oil tank 51, the rubber sealing pad 512 is provided with a one-way ventilation hole 5121, the one-way ventilation hole 5121 comprises a first ventilation hole 5121a close to the oil tank cover 511 for guiding gas into the oil tank 51 and a second ventilation hole 5121b for preventing lubricating oil from flowing out, the first ventilation hole 5121a is connected with the second ventilation hole 5121b, the central axis of the first ventilation hole 5121a is overlapped with the central axis of the second ventilation hole 5121b, and the diameter of the first ventilation hole 5121a is larger than that of the second ventilation hole 5121 b.

The one-way air vent 5121 has the function of a one-way valve, air enters the fuel tank cover 511 through the third air vent 5111, and air enters the fuel tank 51 through the first air vent 5121a with larger diameter at the upper side of the one-way air vent 5121 so as to balance the internal air pressure and the external air pressure of the fuel tank 51, but lubricating oil in the fuel tank 51 cannot flow out, and the sealing gasket 11ab and the air vent valve function are combined into one, so that the one-way valve is not independently arranged on the fuel tank cover 511, the structure is simple, the material and warehouse cost are reduced, the installation step is simplified, and the production and assembly efficiency is improved.

In order to make the installation more convenient, as shown in fig. 12 and 13, the inner side of the fuel tank cap 511 is provided with an upper groove, the rubber ring is provided with a convex rib 5122 matched with the upper groove on the inner side of the fuel tank cap 511, the convex rib 5122 is clamped into the upper groove on the inner side of the fuel tank cap 511, the convex rib 5122 of the sealing gasket 11ab is in interference connection with the groove of the fuel tank cap 511, the sealing effect is good, the connection is firm, the falling off is difficult, the self size matching is utilized, the installation materials are saved, and the automatic installation is facilitated.

As shown in fig. 2, 3 and 20, the left casing 1 includes a plate-shaped casing 11 and a cylindrical casing 12 covered outside the motor, the plate-shaped casing 11 and the casing 12 are integrally formed, the plate-shaped casing 11 and the right casing 2 are locked by screws, guide ribs 26 for guiding the left casing to adjust the installation position are arranged on the inner sides of the side walls around the right casing 2, in the automatic installation process, the tool presses the left casing 2 and the right casing 2 after the left casing 1 is placed at the approximate position on the right casing 2 by a manipulator, the guide ribs 26 guide the left casing 1 to automatically adjust the installation position, and then the screws are locked by an automatic screw locking machine, so that automatic production is realized.

For the complete motor of the chain saw casing, as shown in fig. 3, the outer casing 12 of the left casing 1 is provided with a motor back cover 6, the motor back cover 6 comprises a cylindrical motor back cover body 61 with a back wall and a first handle 62, a rotary buckle 611 is arranged in the motor back cover body 61, an alpha included angle is formed between the radial direction of the rotary buckle 611 on the cylinder and the symmetry axis of the first handle 62, an alpha is not smaller than 10 degrees and not larger than 90 degrees, an arc-shaped guide reinforcing rib 612 is arranged on the inner wall of the motor back cover body 61, the upper end of the guide reinforcing rib 612 protrudes out of the upper edge of the motor back cover body 61, a horizontal clamping groove 121 matched and locked with the rotary buckle 611 is arranged on the side wall of the outer casing 12, an opening for screwing in the rotary buckle 611 is arranged on one end side surface of the horizontal clamping groove 121, a baffle for limiting the rotary buckle 611 to unscrew is arranged on the other end surface of the horizontal clamping groove 121, a limit rib (not shown in the figure) is arranged in the horizontal clamping groove 121, a lifting hand is arranged on the plate-shaped casing 11, and after the rotary buckle 611 is clamped into the horizontal clamping groove 121, the first handle 62 is locked with a part screw.

During installation, the guide reinforcing rib 612 of the motor rear cover 6 is inserted into the outer cover 12 of the left machine shell, so that an alpha included angle is formed between the first handle 62 and the hand-held part of the left machine shell, then the first handle alpha angle is rotated, the rotary buckle 611 on the motor rear cover 6 is screwed into the horizontal clamping groove 121 on the left machine shell 1 to be fixedly locked, the horizontal clamping groove 121 is provided with a limiting rib (not shown in the figure) so that the motor rear cover 6 just rotates to the alpha angle, the first handle 62 and the handle part are aligned and locked, the motor rear cover 6 and the left machine shell 1 are locked in a mode of combining the screw and the buckle, installation materials are reduced, the locking effect is better and firmer, and the falling phenomenon cannot occur in the use process.

In order to block the wood dust generated in the cutting process, as shown in fig. 1 and 3, a protection plate 7 perpendicular to the plate-shaped shell 11 of the left shell is arranged on the left shell 1, a mounting part 71 is arranged on the protection plate 7, the mounting part 71 comprises a positioning groove 711 and a third buckle 712 arranged at the notch of the positioning groove 711, a mounting groove 14 is arranged on the outer side of the left shell 1, a positioning column matched with the positioning groove 711, namely a second positioning column 141 is arranged in the mounting groove 14, the second positioning column 141 is inserted into the positioning groove 711 for mounting and positioning, and a third clamping groove 142 matched with the third buckle 712 is arranged at the bottom of the mounting groove 14 close to the second positioning column 141.

When the protection plate 7 is installed, the second positioning column 141 is inserted into the positioning groove 711 for positioning and pre-installation, after the position is proper, the second positioning column 141 is continuously inserted downwards, so that the buckle is clamped into the third clamping groove 142, the protection plate 7 is installed and locked on the left machine shell 1, the traditional screw installation is replaced by the buckle connection, the operation is simpler, more convenient and more firm, the operation is easy, and the cooperation of the second positioning column 141 and the positioning groove 711 has an installation guiding function, so that the installation automation is facilitated.

As shown in fig. 15, 17 and 18, a sprocket 81 for installing the chain 8 is arranged at one end of the output shaft 371 penetrating out of the right casing 2, a guide plate 9 for supporting the chain 8 is arranged in the chain 8, an adjusting rod 101 assembly 10 for driving the guide plate 9 to move forwards and backwards is arranged between the right casing 2 and the guide plate 9, an adjusting rod 101 assembly mounting groove 27 and a limiting boss 28 of the adjusting rod 101 assembly are arranged at the outer side of the right casing 2, as shown in fig. 16, the adjusting rod 101 assembly 10 comprises an adjusting rod 101 with a second handle 1011, a pressure spring 102 sleeved on the adjusting rod 101 and a tightening nut 103 arranged at one end far from the second handle 1011 and connected with the guide plate 9, a fixed gasket 104 for resisting the pressure spring 102 is arranged on the adjusting rod 101 near the tightening nut 103, a movable gasket 105 for resisting the other end of the pressure spring 102 is sleeved on the adjusting rod 101 near one end of the second handle 1011, a resisting part for resisting the movable gasket 105 is arranged in the adjusting rod 101 assembly mounting groove 27, an end cover assembly 11a for covering the chain 8 and the guide plate 9 is arranged on the right casing 2, the end cover assembly 11a is connected with the right casing 2, and the end cover assembly 11a is fastened with the right casing 2 through a bolt nut assembly.

During installation, firstly, the adjusting rod assembly 10 is installed on the outer side of the right casing 2, when the guide plate 9 and the chain 8 are installed, the chain wheel 81 is installed on the output shaft 371 through the nut, the adjusting rod 101 is pulled towards the limiting boss 28, the pressure spring 102 is compressed, and the second handle 1011 is stirred to be fixed on the limiting boss 28, then the guide plate 9 is installed on the tensioning nut 103, one end of the chain 8 is installed on the chain wheel 81, after other parts are installed on the guide plate 9, the second handle 1011 is peeled off from the limiting boss 28, the pressure spring 102 is opened, the adjusting rod 101 drives the tensioning nut 103 to slide in the direction away from the limiting boss 28 under the action of the elasticity of the pressure spring 102, the guide plate 9 is driven to slide, and therefore, after the chain 8 is tensioned to a proper position, the end cover assembly 11a is buckled, the end cover assembly 11a and the guide plate 9 are fastened on the right casing 2 in a pressing mode, when the chain 8 is loosened in the use process, the guide plate 9 is rocked, the chain 8 is tensioned again, the chain is tensioned by the chain adjusting mechanism, the whole spring tensioning mechanism is adopted, the mechanism is compact, the chain can be adjusted at any time, labor and cost is saved, production and operation is simplified, and production efficiency is improved.

In order to lubricate and cool the guide plate 9 and the chain 8 in the working process of the chain saw, oil outlet holes are formed in the guide plate 9 at positions corresponding to through holes of the oil pipe mounting columns 25, the end cover assembly 11a comprises an end cover 11aa, in order to prevent lubricating oil from flowing into the end cover 11aa and flowing out of the end cover 11aa, sealing gaskets 11ab for sealing the lubricating oil are arranged at positions corresponding to the oil outlet holes in the inner side of the end cover 11aa, when the end cover 11aa is pressed, the sealing gaskets 11ab can block the oil outlet holes in the guide plate 9, as shown in fig. 19, third mounting holes 11ac are formed in the sealing gaskets 11ab, sealing ring mounting columns 11ad matched with the third mounting holes 11ac are arranged on the end cover 11aa, the third mounting holes 11ac are in interference connection with the sealing ring mounting columns 11ad, the sealing gaskets 11ab are installed on the end cover 11aa in a cancelled mode of being fixed by viscose, the sealing gaskets are installed on the end cover 11aa more firmly by utilizing the elastic characteristics of the sealing gaskets, and the production efficiency is improved.

In order to facilitate the bolt to pass out of the guide plate 9, as shown in fig. 18, a sleeve hole is arranged on the end cover 11aa, in order to facilitate the sliding of the bolt, a sleeve 11ae sleeved on the bolt is arranged in the sleeve hole, the bolt passes out of an inner hole of the sleeve 11ae, the sleeve 11ae is in interference connection with the sleeve hole, the inner hole of the sleeve 11ae is of an oval structure, and compared with the currently used round structure, the oval structure can avoid deformation of a material part during injection molding of the sleeve 11ae, so that the hole between the bolt and the sleeve 11ae is misplaced, and the end cover assembly 11a is difficult to install.

In order to limit the movement range of the tension nut 103, limiting blocks for limiting the movement range of the tension nut 103 are arranged on the adjusting rods 101 on two sides of the tension nut 103, so that the movement range of the guide plate 9 is determined, and the chain 8 is prevented from being broken or loosened.

In order to enable the adjustment lever 101 assembly 10 to meet the use requirement in the integrated spring tensioning mechanism, the preparation of the adjustment lever 101 assembly 10 in this embodiment includes the following steps:

s1: bending one end of the rod-shaped adjusting lever 101 into a second handle 1011;

S2: placing the tensioning nut 103 at one end far away from the second handle 1011, and punching the adjusting rods 101 at two sides of the tensioning nut 103 to form a limit block;

S3: after the fixed gasket 104 is arranged on the adjusting rod 101, the pressure spring 102 is sleeved, and then the movable gasket 105 is sleeved, so that the installation of the adjusting rod 101 assembly 10 can be completed.

The adjusting rod 101 assembly 10 is simple in preparation method, convenient to process and high in practicability.

In order to facilitate accurate positioning of the machine shell in the automatic production process, as shown in fig. 17, the right machine shell 2 is provided with three machine shell positioning grooves 29, so that complicated shapes are not needed to be used for positioning, the difficulty in positioning the machine tool and the manufacturing cost are reduced, and abnormal conditions in the automatic production are reduced.

After the whole machine is installed, the power line 33 is powered on, the switch 32 is turned on, the rotor assembly 351 starts to operate, the pinion 3514 on the rotor assembly drives the large gear 373, the gear 373 drives the output shaft 371 again, the output shaft 371 drives the sprocket 81, the sprocket 81 drives the chain 8 to operate, and the chain 8 cuts wood.

Meanwhile, the worm on the output shaft 371 drives the turbine teeth on the pump assembly 53 to operate, and after the pump assembly 53 operates, lubricating oil in the oil tank 51 is conveyed to the oil outlet on the right casing 2 through the oil pipe to lubricate and cool the chain 8.

While the invention has been described in terms of specific embodiments, it will be appreciated by those skilled in the art that the invention is not limited thereto but includes, but is not limited to, the drawings and the description of the specific embodiments. Any modifications which do not depart from the functional and structural principles of the invention are intended to be included within the scope of the appended claims.

Claims

1. The utility model provides a chain saw modularization mounting structure, the chain saw includes the casing, the casing includes right casing and left casing, is equipped with motor gear subassembly, switch and power cord in the casing, motor gear subassembly includes stator assembly, its characterized in that: one end of the switch is connected with the stator assembly, the other end of the switch is connected with the power line, the motor gear assembly, the motor switch and the power line form a switch power line motor gear assembly module, and the switch power line motor gear assembly module is integrally mounted on the shell; a power line fixing groove for fixing a power line is formed in the inner side of the right casing, and a horizontal S-shaped limiting group and a vertical S-shaped limiting group for clamping the power line are arranged in the power line fixing groove; the power line fixing groove comprises an upper S-shaped rib position and a lower S-shaped rib position which are identical in shape, longitudinal raised strips are arranged on the inner sides of the upper S-shaped rib position and the lower S-shaped rib position, the raised strips form a horizontal S-shaped limit group for clamping a power line, a longitudinal first upper rib is arranged at the bottom of the power line fixing groove, a longitudinal second upper rib and a longitudinal third upper rib are arranged at the corresponding position of the left shell upper power line fixing groove, and the first upper rib, the second upper rib and the third upper rib form a vertical S-shaped limit group; the brush holder is provided with a first wire passing groove for the brush braid of the carbon brush to pass through, a second wire passing groove is arranged at a position corresponding to the first wire passing groove on the brush holder groove, and the edge line of the second wire passing groove is outside the edge line of the first wire passing groove; the size of the wire passing groove on the brush holder groove is larger than that of the wire passing groove on the brush holder.

2. The modular mounting structure of a chain saw as set forth in claim 1, wherein: the motor gear assembly comprises a wind shield and an output shaft, wherein the wind shield and the output shaft are arranged on the shell, the output shaft penetrates out of the right shell, stud holes are formed in the wind shield, and studs corresponding to the stud holes are arranged on the inner side of the right shell.

3. The modular mounting structure of a chain saw as set forth in claim 1, wherein: the right shell is provided with a switch groove, and the switch is in interference connection with the inner wall of the switch groove.

4. The modular mounting structure of a chain saw as set forth in claim 1, wherein: still be equipped with oil tank subassembly and pump unit in the casing, pump unit's one end is connected with oil tank subassembly through first oil pipe, and pump unit's the other end is connected with the second oil pipe, and oil tank subassembly, pump unit, first oil pipe and second oil pipe constitute oil circuit subassembly module, with oil circuit subassembly module integral erection to right casing.

5. The modular mounting structure of a chain saw as set forth in claim 4, wherein: the pump assembly is provided with a first mounting hole and a second mounting hole which are positioned on two sides of the pump assembly, the diameter of the first mounting hole is larger than that of the second mounting hole, and the inner side of the right shell is provided with a first pump assembly mounting column matched with the first mounting hole and a second pump assembly mounting column matched with the second mounting hole.

6. The modular mounting structure of a chain saw as set forth in claim 5, wherein: the inside oil pipe erection column that is equipped with of right casing is equipped with on the oil pipe erection column and extends to the through-hole in the right casing outside along axial direction, and the free end cover that the second oil pipe was not connected with the pump assembly is on the oil pipe erection column and with oil pipe erection column seal fixed.

7. The modular mounting structure of a chain saw as set forth in claim 6, wherein: the right casing is equipped with end cover subassembly module outward, end cover subassembly module is connected with right casing buckle, end cover subassembly module includes the end cover and establishes the sealed pad in the end cover, be equipped with the third mounting hole on the sealed pad, be equipped with on the end cover with third mounting hole complex sealed pad erection column, third mounting hole and sealed pad erection column interference connection.

8. The chain saw mounting structure as set forth in claim 7, wherein: the end cover is provided with a shaft sleeve, and an inner hole of the shaft sleeve is of an elliptic structure.

9. The modular mounting structure of a chain saw as set forth in claim 1, wherein: the left casing comprises a plate-shaped casing body and an outer casing body which is arranged on the plate-shaped casing body and covers the outer side of a chain saw motor, a handle part is arranged on the left casing body, a motor rear cover is arranged at one end, far away from the plate-shaped casing body, of the outer casing body, a first handle is arranged on the motor rear cover, a rotary buckle is arranged on the motor rear cover, a horizontal clamping groove which is matched and locked with the rotary buckle and is provided with one side opening is formed in the side wall of the outer casing body, and after the rotary buckle is screwed into the horizontal clamping groove, the first handle is fixedly connected with the handle part.

10. The modular mounting structure of chain saw as set forth in claim 9, wherein: the motor rear cover inner wall is provided with a guide reinforcing rib for mounting the motor rear cover, and the upper end of the guide reinforcing rib protrudes out of the upper edge of the motor rear cover.

11. The modular mounting structure of a chain saw as set forth in claim 1, wherein: be equipped with the guard plate on the casing, the guard plate is connected with the casing buckle, be equipped with the installation department on the guard plate, the installation department includes the constant head tank and establishes the buckle in constant head tank notch department, the left side casing outside is equipped with the mounting groove, is equipped with in the mounting groove with constant head tank complex reference column, the reference column inserts the installation location in the constant head tank, and the mounting groove bottom is close to reference column department and is equipped with buckle complex draw-in groove.