CN204843129U - Electric circular saw - Google Patents
Electric circular saw Download PDFInfo
- Publication number
- CN204843129U CN204843129U CN201520465113.9U CN201520465113U CN204843129U CN 204843129 U CN204843129 U CN 204843129U CN 201520465113 U CN201520465113 U CN 201520465113U CN 204843129 U CN204843129 U CN 204843129U
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- piston
- connecting rod
- piston cylinder
- saw
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Abstract
This patent belongs to the device field of saw cutting, an electric circular saw is specifically disclosed, including the fastening at the epaxial saw bit of the output of motor, the portion of gripping and the guard shield that have accommodation space, the motor is fixed in the portion of gripping, the guard shield is fixed in the portion of gripping, the guard shield is located the top of saw bit, still include first connecting rod, the second connecting rod, a piston, piston cylinder and trachea, the one end of first connecting rod is fixed on the saw bit, the other end is articulated with the one end of second connecting rod, the other end of second connecting rod is articulated with the piston, piston and piston cylinder phase -match, piston cylinder axial motion is followed to the piston, the piston cylinder is fixed in the portion of gripping, the upper portion of piston cylinder is equipped with the gas pocket, air passing hole and the sealed intercommunication of piston cylinder are worn to tracheal one end, the saw bit is aimed at to the other end. This patent need not to establish in addition power device, can accomplish the cooling to the saw bit.
Description
Technical field
The utility model belongs to saw cutting device field, particularly relates to a kind of electric circular saw.
Background technology
Electric circular saw is a kind of conventional sawing electric tool, general is all be fastened on output shaft by securing member by saw blade, rotary work is carried out under the drive of motor, electric circular saw mainly comprises circular saw blade, the saw blade of electric circular saw to be arranged on rotationally on casing and to be driven by motor, casing is also provided with guard shield, prevents saw blade from hurting operating personnel.But electric circular saw is when the work of cutting, and often its contact surface can produce a large amount of heats.Very easily scald the people made with a chainsaw, in addition, along with the rising of temperature, saw blade also can become more fragile, even causes the fracture of saw blade, reduces the service life of saw blade.
In order to solve the heating problem of electric saw, in prior art, often through adding a cooling device on electric saw, saw blade is cooled.Number of patent application is the patent of CN201410202863.7, disclose a kind of electric saw with water cooling function, comprise electric saw body, electricity hydraulic giant, water inlet, piston, switch, jet pipe and sprinkler head, it is characterized in that, in electric saw body one side, the position of saw blade is provided with electric hydraulic giant, the upper end of electric hydraulic giant is provided with water inlet, the piston with sealing process is provided with in water inlet, the front end of electric hydraulic giant is provided with jet pipe, the front end of jet pipe is provided with sprinkler head, the switch of electricity hydraulic giant is connected to the intrinsic motor of electric saw by wire, like this when this body running of electric saw, open the switch on electric hydraulic giant, water in electricity hydraulic giant will be sprayed on the saw blade of electric saw body by jet pipe and sprinkler head uniformly, thus reduce the temperature of saw blade, extend the service life of saw blade.Its shortcoming is: 1. the storage capacity of electric hydraulic giant is limited, and work can face the problem of cooling water deficiency often; 2. what electric hydraulic giant needs were extra sets up a motor, and cost is high, the wasting of resources.
Utility model content
The purpose of this utility model is to provide a kind of electric circular saw, to generate heat serious problem to solve electric circular saw.
In order to solve the problems of the technologies described above, the utility model provides a kind of electric circular saw, comprise the saw blade be fastened on the output shaft of motor, there is grip part and the guard shield of spatial accommodation, motor is fixed in grip part, guard shield is fixed on grip part, guard shield is positioned at the top of saw blade, also comprise first connecting rod, second connecting rod, piston, piston cylinder and tracheae, one end of first connecting rod is fixed on saw blade, one end of the other end and second connecting rod is hinged, the other end of second connecting rod and piston hinge, piston and piston cylinder match, piston is along piston cylinder axially-movable, piston cylinder is fixed on grip part, the top of piston cylinder is provided with pore, the inlet end of tracheae is communicated with piston cylinder through pore, saw blade bottom is aimed in outlet side.
Principle of the present utility model is, one end of first connecting rod is fixed on saw blade, one end of the other end and second connecting rod is hinged, the other end of second connecting rod and piston hinge, so, first connecting rod, second connecting rod and piston composition planar linkage mechanism, saw blade rotates, and drives first connecting rod to rotate, and connecting rod drives piston to move reciprocatingly in piston cylinder, gas after piston compression, is cooled saw blade through tracheae by pore.
The beneficial effects of the utility model are, air-cooled mode is adopted to cool saw blade, without the need to considering the problem of cooling fluid, in addition, the utility model, by the rotation of saw blade itself, utilizes planar linkage principle, drive piston compression gas, without the need to separately establishing motor, cost is lower, and has saved the loss of the energy.
Further, tracheae is gooseneck.Gooseneck has excellent resistance to circumnutating property and fatigue durability, as required, is adjusted the position of air pipe outlet by bending tracheae.Carry out air-cooled to high temperature place emphatically on the one hand, strengthen the effect of cooling; On the other hand, after completing cutting operation, the position of air pipe outlet can be adjusted to blow away the chip produced when electric circular saw cuts.
Further, motor is single phase series motor.Single phase series motor belongs to AC and DC dual-purpose motor, and it both can use AC power work, also can use dc source work.
Further, the gas outlet of tracheae is provided with filter screen.Electric circular saw is when cutting article, and can produce a lot of chips, filter screen can well prevent chip from entering into tracheae, avoids chip to block tracheae.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the schematic perspective view of the saw blade part of the embodiment of the utility model electric circular saw;
Fig. 2 is the front view of the saw blade part of the embodiment of the utility model electric circular saw.
Detailed description of the invention
Reference numeral during accompanying drawing illustrates is: saw blade 1, first connecting rod 2, piston cylinder 3, gooseneck 4, second connecting rod 5.
The present embodiment provides a kind of electric circular saw, comprise single phase series motor, saw blade 1, there is grip part and the guard shield of spatial accommodation, single phase series motor is fixed in grip part, guard shield is fixed on grip part, and saw blade 1 is fixed on the output shaft of single phase series motor, and guard shield is positioned at the top of saw blade 1.
As shown in Figure 1 and Figure 2, also comprise first connecting rod 2, second connecting rod 5, piston, piston cylinder 3 and gooseneck 4, one end of first connecting rod 2 is fixed on saw blade 1, one end of the other end and second connecting rod 5 is hinged, the other end of second connecting rod 5 and piston hinge, piston and piston cylinder 3 match, and piston axially can do piston movement along piston cylinder 3.First connecting rod 2, second connecting rod 5 and piston composition planar linkage mechanism.Piston cylinder 3 is fixed on grip part, and the top of piston cylinder 3 is provided with pore, and one end of gooseneck 4 seals with piston cylinder 3 through pore and is communicated with, and the other end aims at the bottom of saw blade 1.When saw blade 1 rotates, drive first connecting rod 2 to rotate, then drive piston to move reciprocatingly in piston cylinder 3, the gas after piston compression, is cooled saw blade through gooseneck 4 by pore.The gas outlet of gooseneck 4 is provided with filter screen, and electric circular saw is when cutting article, and can produce a lot of chips, filter screen can well prevent chip from entering into gooseneck 4, avoids chip to block gooseneck 4.
During specific works, start the switch of single phase series motor, cutting article can be treated and carry out cutting operation.Gooseneck has excellent resistance to circumnutating property and fatigue durability, in cutting process, is adjusted the position of gooseneck 4 gas outlet by bending gooseneck 4.Carry out air-cooled to high temperature place emphatically on the one hand, strengthen the effect of cooling; After completing cutting operation, the position of gooseneck 4 gas outlet can be adjusted to blow away the chip produced when electric circular saw cuts.
Relative to traditional type of cooling, air-cooled mode is adopted to cool saw blade, without the need to considering the problem of cooling fluid; In addition, by the rotation of saw blade 1 itself, utilize planar linkage principle, drive piston compression gas, without the need to separately establishing motor, cost is lower, and has saved the loss of the energy.
Above-described is only preferred embodiment of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite not departing from the utility model structure; some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.
Claims (4)
1. an electric circular saw, comprise the saw blade be fastened on the output shaft of motor, there is grip part and the guard shield of spatial accommodation, motor is fixed in grip part, guard shield is fixed on grip part, guard shield is positioned at the top of saw blade, it is characterized in that, also comprise first connecting rod, second connecting rod, piston, piston cylinder and tracheae, one end of first connecting rod is fixed on saw blade, one end of the other end and second connecting rod is hinged, the other end of second connecting rod and piston hinge, piston and piston cylinder match, piston is along piston cylinder axially-movable, piston cylinder is fixed on grip part, the top of piston cylinder is provided with pore, the inlet end of tracheae is communicated with piston cylinder through pore, saw blade is aimed in outlet side.
2. electric circular saw as claimed in claim 1, it is characterized in that, tracheae is gooseneck.
3. electric circular saw as claimed in claim 1, it is characterized in that, motor is single phase series motor.
4. electric circular saw as claimed in claim 1, it is characterized in that, the gas outlet of tracheae is provided with filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520465113.9U CN204843129U (en) | 2015-07-02 | 2015-07-02 | Electric circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520465113.9U CN204843129U (en) | 2015-07-02 | 2015-07-02 | Electric circular saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204843129U true CN204843129U (en) | 2015-12-09 |
Family
ID=54733726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520465113.9U Expired - Fee Related CN204843129U (en) | 2015-07-02 | 2015-07-02 | Electric circular saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204843129U (en) |
-
2015
- 2015-07-02 CN CN201520465113.9U patent/CN204843129U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160702 |