CN107914247A - A kind of electromagnetic type electric pick - Google Patents
A kind of electromagnetic type electric pick Download PDFInfo
- Publication number
- CN107914247A CN107914247A CN201711364045.7A CN201711364045A CN107914247A CN 107914247 A CN107914247 A CN 107914247A CN 201711364045 A CN201711364045 A CN 201711364045A CN 107914247 A CN107914247 A CN 107914247A
- Authority
- CN
- China
- Prior art keywords
- movable core
- connecting rod
- type electric
- seat plate
- electric pick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/06—Means for driving the impulse member
- B25D11/064—Means for driving the impulse member using an electromagnetic drive
Abstract
The invention discloses a kind of electromagnetic type electric pick, including barrel-type casing, the enclosure interior front end is equipped with fore beam, rear end is equipped with back seat plate, before, electromagnetic coil is installed between back seat plate, the electromagnetic coil is set to hollow cavity structure, movable core is equipped with the hollow cavity structure, movable core front end is installed with connecting rod, the connecting rod uses non-magnetic material, the connecting rod of non-magnetic material can prevent the decrease of electromagnetic force, the connecting rod passes through fore beam, the movable core rear end is installed with resetting apparatus, the resetting apparatus passes through back seat plate, rearward end is equipped with positioning seat corresponding with resetting apparatus rearward end in the housing, the connecting rod front end is covered by drill point to be connected with pick rod, the change-over switch that common current is transformed into pulse current is equipped with the power control circuit.The configuration of the present invention is simple, energy consumption is low, and noise is small, low manufacture cost, service life length, easy to maintenance.
Description
Technical field
The present invention relates to power tools technology field, more particularly to a kind of electromagnetic type electric pick.
Background technology
Electric pick currently on the market, includes the various product of home and abroad, is all to show power source with motor, by various tooth
The complicated transmission mechanism of wheel composition converts rotational motion to the straight reciprocating motion of pick rod, and complicated, manufacture is of high cost, easily
Abrasion, high failure rate, maintenance is inconvenient, and high energy consumption, noise are big.
The content of the invention
In order to solve technical problem present in above-mentioned background technology, the present invention provides a kind of electromagnetic type electric pick, by straight
The electromagnetic force that line moves back and forth directly drives pick rod to make straight reciprocating motion, ties as power source by movable core in coil
Structure is simple, and low manufacture cost, energy consumption is low, and noise is small.
The technical proposal of the invention is realized in this way：
A kind of electromagnetic type electric pick, including barrel-type casing, the enclosure interior cavity front end are equipped with fore beam, and rear end is equipped with back seat
Plate, the housing rear end portion are equipped with handle, which is equipped with power switch, sets power control circuit in handle, its feature exists
Electromagnetic coil is installed between the forward and backward seat board, the electromagnetic coil is set to hollow cavity structure, the hollow cavity structure
Interior to be equipped with movable core, the movable core front end is installed with connecting rod, which is non-magnetic material, and the connecting rod is worn
Fore beam is crossed, the movable core rear end is installed with resetting apparatus, which passes through back seat plate, rearward end in the housing
Equipped with positioning seat corresponding with resetting apparatus rearward end, the connecting rod front end is covered by drill point to be connected with pick rod, the power supply
The change-over switch that common current is transformed into pulse current is equipped with control circuit.
Preferably, the resetting apparatus includes release link, resets lid, return springs, and the release link is fixedly arranged on activity
On iron core rear end face, and back seat plate is passed through, the reset is covered on another termination of release link, and the return springs are sheathed on multiple
On the bar of position, one end is covered against back seat plate, the other end against reset.
Preferably, the return springs use compression spring.
Preferably, the periphery of the electromagnetic coil is equipped with secured core, to electromagnetic wire among the front end of the secured core
Circle hollow cavity extends one section of inner race section of entering, and is hollow structure among the inner race section, the connecting rod passes through inner race section, described
Secured core rearward end is equipped with through hole, and the movable core is arranged on the rear end of inner race section, and gap is left between inner race section, institute
State movable core and pass through secured core rearward end through hole.
Preferably, the secured core is composed of a fixed connection by sleeve and end cap, and the end cap includes inner race section, the inner sleeve
Portion is arranged on the inside of end cap.
Preferably, the secured core and movable core use silicon steel sheet.
Preferably, the gap between the movable core and inner race section is 5~10mm.
Preferably, the centre of the fore beam and back seat plate is equipped with wear-resisting, heat safe axle sleeve.
The operation principle of the present invention：Power switch is pulled, is powered on, change-over switch is powered, and has pulse on electromagnetic coil
Voltage, movable core produce the electromagnetic force to travel forward, which passes to pick rod by connecting rod and drill point set, make pick rod
Make impact movement forward.After pulse voltage vanishing, electromagnetic force disappears, and resetting apparatus is moved rearwards movable core, when multiple
When position device rearward end is collided with positioning seat, movable core moves after stopping, and is returned to initial position.Second pulse voltage at this time
Electromagnetic coil both ends are added to, repeat above-mentioned movement, so in cycles, pick rod constantly back and forth impacts, and reaches the mesh of broken object
's.The electric pick beating frequency of the present invention is up to 1800~3600 beats/min.
The beneficial effects of the invention are as follows：Simple in structure, energy consumption is low, and noise is small, low manufacture cost, service life length, maintenance
It is convenient.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention；
Fig. 2 is secured core structure diagram.
In figure：1st, housing, 2, fore beam, 3, axle sleeve I, 4, back seat plate, 5, shaft sleeve II, 6, electromagnetic coil, 7, secured core,
701st, end cap, 7011, inner race section, 702, sleeve, 7021, through hole, 8, connecting rod, 9, movable core, 10, drill point set, 11, pick
Pricker, 12, release link, 13, reset lid, 14, return springs, 15, positioning seat, 16, handle, 17, power switch, 18, conversion opens
Close.
Embodiment
As shown in Figure 1, 2, the embodiment of the present invention includes barrel-type casing 1, and 1 internal cavities front end of housing is equipped with fore beam 2, after
End is equipped with back seat plate 4, and axle sleeve 3 is equipped among fore beam 2, is equipped with axle sleeve 5 among back seat plate 4, axle sleeve 4 and axle sleeve 5 are resistance to
Mill, high temperature resistant material.
Electromagnetic coil 6 is fixedly connected between fore beam 2, back seat plate 4, the periphery of electromagnetic coil 6 is equipped with secured core 7,
Secured core 7 is composed of a fixed connection by sleeve 702 and end cap 701, and the inner side of end cap 701 is equipped with inner race section 7011, the inner race section
It is hollow structure among 7011, electromagnetic coil 6 is hollow cavity structure, is equipped with movable core 9 in the hollow cavity structure, activity
Iron core 9 is arranged on the rear end of inner race section 7011, and gap L, L 10mm are left between inner race section 7011, and 9 front end of movable core is consolidated
Equipped with connecting rod 8, which uses non-magnetic material, and the connecting rod 8 of non-magnetic material can prevent the decrease of electromagnetic force, even
Extension bar 8 is connected through the axle sleeve I 3 among inner race section 7011, fore beam 2, front end by drill point set 10 with pick rod 11；
7 rearward end of secured core is equipped with through hole 7021, and the movable core 9 passes through 7 rearward end through hole 7021 of secured core, activity
9 rear end of iron core is installed with release link 12, and through the shaft sleeve II 5 among back seat plate 4,12 another termination of release link is set the release link 12
Have and reset lid 13, be arranged with return springs 14 between back seat plate 4 and reset lid 13 in release link 12, rearward end is set in housing 1
There is positioning seat 15,15 position of positioning seat is corresponding with resetting lid 13.
1 rearward end of housing is equipped with handle 16, which is equipped with power switch 17, and power supply control electricity is set in handle 16
Road, the change-over switch 18 that common current is transformed into pulse current is equipped with power control circuit.
As preference, secured core 7 and movable core 9 use silicon steel sheet magnetic conductive material.
As preference, return springs 14 use compression spring.
The present embodiment operation principle is as follows：Power switch 17 is pulled, is powered on, change-over switch 18 is powered, electromagnetic coil 6
On have a pulse voltage, movable core 9 produces the electromagnetic force to travel forward, which passes through connecting rod 8 and drill point set 10 transmits
To pick rod 11, pick rod 11 is set to make impact movement forward.After pulse voltage vanishing, electromagnetic force disappears, by return springs 14
Elastic force, be moved rearwards movable core 9 by release link 12, when resetting lid 13 and positioning seat 15 and colliding, movable core 9 stops
Moved after only, be returned to initial position.Second pulse voltage is added to 6 both ends of electromagnetic coil again at this time, repeats above-mentioned movement, so
In cycles, the constantly reciprocal impact of pick rod 11, achievees the purpose that broken object.This electric pick beating frequency is up to 1800~3600
Beat/min.
The above, is only the preferred embodiments of the disclosure, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of electromagnetic type electric pick, including barrel-type casing, the enclosure interior cavity front end is equipped with fore beam, and rear end is equipped with back seat
Plate, the housing rear end portion are equipped with handle, which is equipped with power switch, sets power control circuit in handle, its feature exists
Electromagnetic coil is installed between the forward and backward seat board, the electromagnetic coil is set to hollow cavity structure, the hollow cavity structure
Interior to be equipped with movable core, the movable core front end is installed with connecting rod, which is non-magnetic material, and the connecting rod is worn
Fore beam is crossed, the movable core rear end is installed with resetting apparatus, which passes through back seat plate, rearward end in the housing
Equipped with positioning seat corresponding with resetting apparatus rearward end, the connecting rod front end is covered by drill point to be connected with pick rod, the power supply
The change-over switch that common current is transformed into pulse current is equipped with control circuit.
A kind of 2. electromagnetic type electric pick according to claim 1, it is characterised in that：The resetting apparatus includes release link, answers
Position lid, return springs, the release link is fixedly arranged on movable core rear end face, and passes through back seat plate, and the reset is covered on
Another termination of release link, the return springs are sheathed in release link, and one end is covered against back seat plate, the other end against reset.
A kind of 3. electromagnetic type electric pick according to claim 2, it is characterised in that：The return springs use compression spring.
A kind of 4. electromagnetic type electric pick according to claim 3, it is characterised in that：The periphery of the electromagnetic coil, which is equipped with, to be fixed
Iron core, enters one section of inner race section to the extension of electromagnetic coil hollow cavity among the front end of the secured core, among the inner race section
For hollow structure, the connecting rod passes through inner race section, and the secured core rearward end is equipped with through hole, and the movable core is arranged on interior
The rear end in set portion, and gap is left between inner race section, the movable core passes through secured core rearward end through hole.
A kind of 5. electromagnetic type electric pick according to claim 4, it is characterised in that：The secured core is consolidated by sleeve and end cap
Fixed connection composition, the end cap include inner race section, which is arranged on the inside of end cap.
A kind of 6. electromagnetic type electric pick according to claim 4, it is characterised in that：The secured core and movable core are adopted
Use silicon steel sheet.
A kind of 7. electromagnetic type electric pick according to claim 4, it is characterised in that：Between the movable core and inner race section
Gap is 5~10mm.
8. any electromagnetic type electric pick according to claim 1 to 7, it is characterised in that：The fore beam and back seat plate
Centre is equipped with wear-resisting, heat safe axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711364045.7A CN107914247A (en) | 2017-12-18 | 2017-12-18 | A kind of electromagnetic type electric pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711364045.7A CN107914247A (en) | 2017-12-18 | 2017-12-18 | A kind of electromagnetic type electric pick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107914247A true CN107914247A (en) | 2018-04-17 |
Family
ID=61893413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711364045.7A Pending CN107914247A (en) | 2017-12-18 | 2017-12-18 | A kind of electromagnetic type electric pick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107914247A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581965A (en) * | 2018-04-23 | 2018-09-28 | 中山绿威科技有限公司 | Electric hammer and its control method |
| CN110897566A (en) * | 2019-12-06 | 2020-03-24 | 肇庆市衡艺实业有限公司 | Working head lifting mechanism of working machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3030910A1 (en) * | 1979-08-17 | 1981-03-26 | Dobson Park Industries Ltd., Nottingham, Nottinghamshire | Percussion tool with spring driven hammer - has magnetic coupling between hydraulic piston and impact piston |
| JPH07164350A (en) * | 1993-12-10 | 1995-06-27 | Nippon Steel Corp | Electromagnetic hammer |
| CN1255416A (en) * | 1998-12-03 | 2000-06-07 | 希尔蒂股份公司 | Manually-operated drill and/or chiselling machine |
| CN101092027A (en) * | 2007-07-16 | 2007-12-26 | 孙玉坤 | Electrical percussive tool |
| CN101239458A (en) * | 2008-03-19 | 2008-08-13 | 桐乡市嘉程电子机械有限公司 | Electric steel nail gun |
| CN102225542A (en) * | 2011-06-02 | 2011-10-26 | 浙江大学 | Electric hammer drill having magnetic impact mechanism and effects of buffer and energy storage |
| CN105945870A (en) * | 2016-01-21 | 2016-09-21 | 甄立新 | hand-held electromagnetic hammer |
| CN207807634U (en) * | 2017-12-18 | 2018-09-04 | 付国华 | A kind of electromagnetic type electric pick |
-
2017
- 2017-12-18 CN CN201711364045.7A patent/CN107914247A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3030910A1 (en) * | 1979-08-17 | 1981-03-26 | Dobson Park Industries Ltd., Nottingham, Nottinghamshire | Percussion tool with spring driven hammer - has magnetic coupling between hydraulic piston and impact piston |
| JPH07164350A (en) * | 1993-12-10 | 1995-06-27 | Nippon Steel Corp | Electromagnetic hammer |
| CN1255416A (en) * | 1998-12-03 | 2000-06-07 | 希尔蒂股份公司 | Manually-operated drill and/or chiselling machine |
| CN101092027A (en) * | 2007-07-16 | 2007-12-26 | 孙玉坤 | Electrical percussive tool |
| CN101239458A (en) * | 2008-03-19 | 2008-08-13 | 桐乡市嘉程电子机械有限公司 | Electric steel nail gun |
| CN102225542A (en) * | 2011-06-02 | 2011-10-26 | 浙江大学 | Electric hammer drill having magnetic impact mechanism and effects of buffer and energy storage |
| CN105945870A (en) * | 2016-01-21 | 2016-09-21 | 甄立新 | hand-held electromagnetic hammer |
| CN207807634U (en) * | 2017-12-18 | 2018-09-04 | 付国华 | A kind of electromagnetic type electric pick |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581965A (en) * | 2018-04-23 | 2018-09-28 | 中山绿威科技有限公司 | Electric hammer and its control method |
| CN110897566A (en) * | 2019-12-06 | 2020-03-24 | 肇庆市衡艺实业有限公司 | Working head lifting mechanism of working machine |
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