CN104174895B - A kind of Simple hand electric drill - Google Patents
A kind of Simple hand electric drill Download PDFInfo
- Publication number
- CN104174895B CN104174895B CN201410330495.4A CN201410330495A CN104174895B CN 104174895 B CN104174895 B CN 104174895B CN 201410330495 A CN201410330495 A CN 201410330495A CN 104174895 B CN104174895 B CN 104174895B
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- Prior art keywords
- casing
- sheath body
- polyether
- motor
- ether
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/001—Housing of the drill, e.g. handgrip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/008—Gear boxes, clutches, bearings, feeding mechanisms or like equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
- B29C2045/0008—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements the fibres being oriented randomly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
- B29C2045/776—Measuring, controlling or regulating of velocity or pressure of moulding material determining the switchover point to the holding pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2271/00—Use of polyethers, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof, as reinforcement
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of Simple hand electric drill, including the casing and the torque set installed in casing front end by left casing and right casing fastening, drill chuck, the motor and transmission assembly of motor output shaft are provided with the upper end of casing, motor gear is arranged with motor output shaft, the travelling gear and travelling gear that power transmission shaft is provided with transmission assembly and is connected with power transmission shaft are engaged with motor gear, power transmission shaft covers through torque and is connected with drill chuck, switch assembly is installed in the middle part of casing, the bottom of casing is provided with illuminating lamp and battery pack, being fixed in the middle part of casing has handle sheath body, casing rear end, which is fixed, rear sheath body, sheath body rear end offers some heat emission holes afterwards, wherein, sheath body is made up of polyether-ether-ketone composite material afterwards, possess good mechanical property and electrical insulation properties, and open up multiple heat emission holes on rear sheath body, enhance thermal diffusivity, be conducive to the normal operation of electric hand drill internal mechanism and improve the service life of electric hand drill.
Description
Technical field
The invention belongs to electric tool technical field, it is related to a kind of Simple hand electric drill.
Background technology
Electric drill is the drilling machine that power is done using electricity, is the conventional products in electric tool, is mainly used in building, fills
Repair, family expenses, the field such as medical treatment, for scraping material surface or pierce object.In addition, also develop has corresponding offshore drill in the world
Equipment is visited, for reconnoitring for Marine Geology and mineral products.
The operation principle of electric drill is that the rotor of electromagnetic rotating formula or electromagnetic reciprocating low capacity motor does magnetic field and cut
Acting operating is cut, apparatus for work is driven by transmission mechanism, the power of drill bit is increased with moving gear, preferably pierces object.Electricity
Brill can be divided into electric hand drill, impact drill, hammer drill, and electric hand drill purposes in real life is relatively more, use wide, acceptable basis
Specific purposes carries out certain transformation to structure.
Torch of the prior art is drilled with diversified forms, patent of invention (notification number is CN202934160U) and discloses one
Plant " electric drill for carrying spirit bubble ", the electric drill includes the components, the electricity such as drill chuck, torque set inner ring, motor, casing, spirit bubble
The entirety of structure relatively succinct but its casing operationally for a closing is bored, thermal diffusivity is bad, the heat produced during each organisation operations
Amount is gathered in casing internal, may influence the normal activity of work package.
In summary, it is not enough, it is necessary to design a kind of good Simple hand of reasonable in design, thermal diffusivity on existing structure to solve
Electric drill.
The content of the invention
The purpose of the present invention is there is above mentioned problem for existing technology, it is proposed that a kind of reasonable in design, thermal diffusivity is good
Simple hand electric drill.
The purpose of the present invention can be realized by following technical proposal：A kind of Simple hand electric drill, including by left casing and the right side
It is provided with casing and torque set, the drill chuck installed in casing front end that casing is fastened, the upper end of the casing
The motor and transmission assembly of translator output shaft, the motor is connected by motor output shaft with transmission assembly, described
The biography that power transmission shaft is provided with inside motor gear, the transmission assembly and is connected with power transmission shaft is arranged with motor output shaft
Moving gear and travelling gear and motor gear intermeshing, the front end of the transmission assembly is connected and described with torque external threading
Power transmission shaft is covered through torque and is connected with drill chuck, and switch assembly, the bottom of the casing are provided with the middle part of the casing
Illuminating lamp and battery pack, the switch assembly, illuminating lamp, motor, battery pack electrical connection and formation closed-loop path, institute are inside installed
State casing upper end and offer to be provided with the first groove and the second groove, the first groove in spirit bubble, the second groove and be provided with
Magnet and the second groove edge extend internally and have lug, and the casing rear end, which is fixed, rear sheath body, with switch in the middle part of the casing
The opposite side of assembly, which is fixed, handle sheath body, and the rear sheath body both sides offer some 3rd grooves and rear sheath body rear end respectively
Some heat emission holes are offered, the handle sheath body is provided with some fins, wherein, the rear sheath body is by polyether-ether-ketone composite material
It is made, the polyether-ether-ketone composite material is made up of following parts by weight composition：Polyether-ether-ketone：50-80 parts, polyether sulfone：10-25
Part, 5-25 parts of reinforcing fiber, heat filling：25-40 parts, coupling agent：0.2-3 parts, antioxidant：0.3-2 parts.
Sheath body is a part for electric drill machine shell afterwards, plays a part of skeleton, in practice it has proved that, rear sheath body uses the plastics of high-quality
It is prepared from stronger practicality, and plastics are insulators, with good electrical safety sense.But, current rear enclosure
Shell is mostly made of PC+PBT materials or ABS material, and it is high-strength that the performance such as intensity, high temperature resistant, wearability can not all meet electric drill
The job requirements of degree.Therefore, the present invention after sheath body be made of polyether-ether-ketone composite material, polyether-ether-ketone be a kind of crystallinity,
The super heat-resisting thermoplastic resin of fragrant family of opaque, shallow tea ash color, with high intensity, high-modulus, high temperature resistant, rub resistance, resistance to
The features such as chemical attack, dimensionally stable and easy processing, temperature is used for a long time up to 250 DEG C, short-period used temperature is up to 300
DEG C, the short time hardly decomposes at 400 DEG C, and the loss of strength under high temperature is smaller, good stability of the dimension.In addition, polyethers
Ether ketone also has good fire retardancy, is unique resin without adding fire retardant in thermoplastic resin.Prepared with polyether-ether-ketone
Rear sheath body can meet electric drill high intensity, more permanent job requirements, and use environment is more extensive.But this hair
Bright in order to prepare, thermal diffusivity is good, the more permanent electric drill of service life, selects polyether-ether-ketone and polyether sulfone, reinforcing fiber, heat conduction
The auxiliary materials such as filler are blended, to improve the performances such as its rigidity, impact strength, high temperature resistant and dimensional stability, forming properties
More superior polyether-ether-ketone composite material, so as to which combination property more superior rear sheath body is made, thermal diffusivity is good, to meet
Electric drill high intensity, more permanent job requirements, extend the service life of electric drill.
Polyether sulfone is that sulphur atom is in highest oxidation state in a kind of non-crystalline type thermoplastic high temperature engineering plastics, its structure,
Sulfone group, which is in ehter bond in higher contraposition resonances, molecule, allows adjacent segment rotary motion, determines that it has machinery strong
The premium properties such as the temperature dependency of degree is small, processing characteristics is good, heat-resist, chemical resistance is good, fire retardant, and it
Cost is only the 1/5 of polyether-ether-ketone.Therefore, by polyether-ether-ketone with it is polyethersulfone blended, with the increase of polyether sulfone parts by weight, altogether
The melt index increase of mixed thing, improves the fluidity of molten of polyether-ether-ketone, reduces the viscosity of polyether-ether-ketone, improve polyethers
The processing characteristics of ether ketone, moreover, the mechanics such as heat resistance, fracture strength and elongation at break of polyether-ether-ketone composite material after blending
Performance and anti-flammability improve more obvious.But, polyether-ether-ketone is partially compatible system with polyether sulfone, and compatibility is poor, therefore,
Polyether sulfone addition should not be excessive, it is necessary to which control is within the scope of the present invention.
In a kind of above-mentioned Simple hand electric drill, the reinforcing fiber is carbon fiber, glass fibre, ultrafine titanium oxide fiber
In one or more, a diameter of 0.1-0.5 μm of the reinforcing fiber, draw ratio be (8-15)：1.In polyethers ether of the present invention
Reinforcing fiber is added in ketone composite, makes polyether-ether-ketone composite material that there is excellent creep resistant, wet-heat resisting, ageing-resistant and anti-
Impact property, can also increase substantially stretching and the bending strength of composite, and the more preferable composite of performance is made.
Wherein, the ultrafine titanium oxide fiber in above-mentioned reinforcing fiber has high intensity, high activity, chemical stability etc. excellent
Performance, with stronger micro- reinforcement, micro- wear-resisting effect, the polyether-ether-ketone of filling ultrafine titanium oxide fiber is shown preferably
Anti-friction wear-resistant characteristic and heat resistance.In addition, ultrafine titanium oxide fiber can improve the incipient melting temperature and steepest of polyether-ether-ketone
Fusion temperature so that the polyether-ether-ketone in composite maintains the crystallinity close with pure polyether-ether-ketone, improves composite
Heat resistance.Therefore, the present invention is more highly preferred to ultrafine titanium oxide fiber and carbon fiber or glass fibre compounding use, and enhancing is poly-
The combination property of polyetherether ketone composite.
In a kind of above-mentioned Simple hand electric drill, the heat filling is AlN, Si3N4, one kind in BN, MgO, SiC or
A variety of, the particle diameter of the heat filling is 60-120 mesh.It is made up that rear sheath body heat conductivility is poor of polyether-ether-ketone, thermal diffusivity is bad,
The heat that electric drill long-time high intensity is produced when operating can be gathered in casing internal, so that the normal activity of work package is influenceed,
It is unfavorable for the job requirements of electric drill long-time high intensity, can also influences the service life of electric drill.And above-mentioned heat filling of the invention
Excellent insulating property, and with the capacity of heat transmission higher than polyether-ether-ketone, these heat fillings and polyether-ether-ketone are carried out effective
Compound Machining, the polyether-ether-ketone composite material prepared possesses good heat conductivility, so that polyether-ether-ketone composite material system
Into the thermal diffusivity of rear sheath body improve, it is to avoid the aggregation of temperature in casing, so as to meet the operation need of electric drill long-time high intensity
Ask, improve the temperature in use of electric drill and extend the service life of electric drill.And heat filling can also significantly improve polyethers
The shock resistance of ether ketone composite and crocking resistance, while the rigidity and dimensional stability of raising polyether-ether-ketone composite material,
To ensure that the rear sheath body that polyether-ether-ketone composite material is made can meet the job requirements of electric drill high intensity, durability is improved.
Consumption, species, crystal formation, grain size and the distribution of heat filling, surface physical and chemical performance, complex method etc. are all determined
The heat conductivility of polyether-ether-ketone composite material.The high heat filling of above-mentioned thermal conductivity is selected to make the heat conductivility of composite
Greatly improve.And in terms of heat filling consumption, heat filling loading of the same race is less and when being dispersed in polyether-ether-ketone,
Because conductive particle does not contact with each other, there is no great influence on the heat conduction of polyether-ether-ketone composite material, continue to increase heat conduction
Contacted with each other between amount of filler, each conductive particle, form thermal conducting path, i.e. heat along the higher filler of thermal conductivity in polyethers
Transmitted inside ether ketone, further increase heat filling consumption, just has more thermal conducting paths in direction of heat flow and formed, during unit
The interior heat increase by polyether-ether-ketone composite material cross section, strengthens the heat conduction of material, certainly, when heat filling consumption
During more than certain value, the thermal conductivity increase of polyether-ether-ketone composite material tends towards stability or stops increasing.In addition, being filled out in identical heat conduction
In the case of material, heat filling particle diameter is too small, and number necessarily increases, specific surface area increase, and the too small heat filling of particle diameter
More binomial interfaces are had in the conduction distance of composition, the thermal resistance at binomial interface is big, and the scattering of phonon is serious.Therefore, select
One or more in the above-mentioned heat filling of the present invention, and by the particle diameter of heat filling and consumption control within the scope of the present invention,
To ensure the thermal conductivity and mechanical property of polyether-ether-ketone composite material.
In a kind of above-mentioned Simple hand electric drill, the coupling agent is one kind in silane coupler, titanate coupling agent.
The addition of coupling agent not only contributes to reinforcing fiber and is uniformly scattered in polyether-ether-ketone matrix, and heat filling can also be entered
Row surface is modified, and its one end is combined with the surface of heat filling in modes such as certain bond valences, and the other end can be with polyether-ether-ketone
Group reacts, and serves the effect of " bridge joint " heat filling and polyether-ether-ketone matrix, to improve polyether-ether-ketone composite material
Heat conductivility and mechanical property.
The present invention is also added into antioxidant in polyether-ether-ketone composite material, and the addition of antioxidant is primarily to suppress empty
Oxygen in gas improves the guarantor of physical property after composite is heated in aerobic air to the oxygenolysis of composite
Stay.The antioxidant is also the one or more in commercially available common antioxidant, such as：Antioxidant CA, antioxidant 164, antioxygen
Agent DNP, antioxidant MB.
In a kind of above-mentioned Simple hand electric drill, the preparation method of the rear sheath body comprises the following steps：
S1, by the constituent and its parts by weight of above-mentioned rear sheath body raw material is weighed, and polyether-ether-ketone is placed in vacuum and done
In dry 6-10h at 100-140 DEG C in dry case；
S2, the above-mentioned raw material weighed is well mixed and be added in the barrel of injection machine, be heated to molten condition；
S3, by the raw material of above-mentioned molten condition by nozzle injection after in the mould of sheath body, after being obtained through pressurize, cooling
Sheath body.
Because polyether-ether-ketone has certain hydroscopicity, therefore, polyether-ether-ketone is dried place in step S1 of the present invention
Reason, is well mixed in the barrel for putting into injection machine with other raw materials, prevents the secondary moisture absorption of polyether-ether-ketone immediately after drying.
In a kind of above-mentioned Simple hand electric drill, hopper section temperature in step S2 in the preparation method of the rear sheath body
For 360-380 DEG C, stage casing temperature is 420-450 DEG C, and back segment temperature is 400-430 DEG C.The glass transition temperature of polyether-ether-ketone is about
140 DEG C, fusing point is about 340 DEG C, and the mechanical property of its composite depends on crystalline condition, although multiple in polyether-ether-ketone of the present invention
Match somebody with somebody the small polyether sulfone of temperature dependency and improve the reinforcing fiber of polyether-ether-ketone crystallinity, but processing temperature is still influence
One of key factor of crystalline condition of polyether-ether-ketone composite material, so as to affect the mechanical property of composite.Therefore, plus
The temperature control of barrel is particularly important for the mechanical property of composite during work.If temperature is too low, polyether-ether-ketone is multiple
Condensation material melting effect is bad, poor fluidity, the result easily loose in forming process, and if temperature is too high, melt is cold
The generation of nucleus is mainly homogeneous nucleation when but, and crystalline rate is slow, and big spherocrystal is easily generated in product, product fragility is caused
Increase, reduces mechanical property.With reference to the component and its parts by weight compounded in polyether-ether-ketone composite material of the present invention, the present invention
It it is 360-380 DEG C by hopper section temperature control, stage casing temperature control is 420-450 DEG C, back segment temperature control is 400-430
DEG C when fluidity of molten it is good, injection molding effect is good, and product surface is smooth, during melt cooling the generation of nucleus be mainly out-phase into
Core, crystalline rate is fast, and crystal is small and uniform, so as to be conducive to improving its mechanical property.
In a kind of above-mentioned Simple hand electric drill, mold temperature is described in step S3 in the preparation method of the rear sheath body
180-220 DEG C, injection pressure is 100-130MPa, and injection time is 2-7s, and dwell pressure is 70-100MPa, and the dwell time is
15-40s, cool time is 15-30s.It is influenced by temperature because polyether-ether-ketone composite material is crystallized, in a mold the long period
More than glass transition temperature, be conducive to the growth of nucleus and growing up for crystal, when mould is more than 180 DEG C, polyethers ether
The crystal growth of ketone composite is good, and crystallization is more complete, and structure is relatively stable, good stability of the dimension, meanwhile, mold temperature
Holding also can strengthen the crystallization of polyether-ether-ketone composite material, so that its strand arranged regular, intermolecular force is strengthened,
Be conducive to improving its mechanical property, but, mold temperature is too high, much larger than glass transition temperature, is then unfavorable for polyether-ether-ketone
Composite nucleus growth, cooling need to be shaped with fixture after depanning, be unfavorable for producing in enormous quantities, therefore, and mold temperature control exists
It is more suitable in the range of 180-220 DEG C.Equally, injection pressure, time, dwell pressure, time and cool time are all that influence is poly-
The key factor of polyetherether ketone composite combination property, the present invention is by injection pressure, time, when dwell pressure, time and cooling
Between control within the above range, the mechanical property of its product is good, and energy consumption is small, and substandard products are few.
In a kind of above-mentioned Simple hand electric drill, the push rod of energy controlled motor forward and backward is also equipped with the middle part of the casing
And the two ends of push rod are each passed through left casing and right casing, the push rod, motor, switch assembly, battery pack are electrically connected and formed
Closed-loop path.
In a kind of above-mentioned Simple hand electric drill, charge assembly, the charging are also equipped with the bottom of the casing
Assembly electrically connects with battery pack and forms closed-loop path.
Compared with prior art, the present invention has following advantage：
1. the present invention is simple in construction, easily operated；Multiple heat emission holes are opened up on the rear sheath body of casing rear end, radiating is enhanced
Property, be conducive to the normal operation of electric hand drill internal mechanism and improve the service life of electric hand drill.
2. the rear sheath body in Simple hand electric drill of the present invention is made up of polyether-ether-ketone composite material, possesses good mechanical property
And electrical insulation properties.
3. the present invention has compounded polyether sulfone and increasing in the polyether-ether-ketone composite material of rear sheath body of Simple hand electric drill is prepared
Strong fiber, improves the processing characteristics of composite, improves intensity, wet-heat resisting, the ageing-resistant and impact resistance of composite
The mechanical properties such as energy, so that the performance of sheath body is more preferably, more robust after product.
4. the present invention has compounded appropriate thermal conductivity in the polyether-ether-ketone composite material of rear sheath body of Simple hand electric drill is prepared
The heat filling that rate rate is high, particle diameter is suitable, makes sheath body after product possess good heat conductivility, so that the thermal diffusivity of rear sheath body
Improve, it is to avoid the temperature aggregation in casing, meet the job requirements of electric drill long-time high intensity, improve the temperature in use of electric drill
With the service life for extending electric drill.
5. the technological parameter of the rear sheath body in strict control Simple hand electric drill of the invention, to ensure the synthesis of sheath body after product
Performance, reduces energy consumption and defect rate.
Brief description of the drawings
Fig. 1 is the explosive view of a preferred embodiment of the present invention.
Fig. 2 is the structural representation of right casing in a preferred embodiment of the present invention.
Fig. 3 is the structural representation of rear sheath body in a preferred embodiment of the present invention.
Fig. 4 is the structural representation of handle sheath body in a preferred embodiment of the present invention.
In figure, 11, left casing；12nd, right casing；13rd, the first groove；14th, the second groove；141st, lug；20th, torque set；
30th, drill chuck；40th, motor；41st, motor output shaft；42nd, motor gear；50th, transmission assembly；51st, power transmission shaft；61st, switch total
Into；62nd, illuminating lamp；63rd, battery pack；64th, push rod；65th, charge assembly；70th, spirit bubble；80th, magnet；90th, rear sheath body；91st,
Three grooves；92nd, heat emission hole；100th, handle sheath body；101st, fin.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in Figures 1 to 4, this Simple hand electric drill include the casing that is fastened by left casing 11 and right casing 12 and
The motor 40 of motor output shaft 41 is provided with torque set 20, drill chuck 30 installed in casing front end, the upper end of casing
And transmission assembly 50, motor 40 is connected with transmission assembly 50 by motor output shaft 41, is arranged on motor output shaft 41
Have and power transmission shaft 51 and the travelling gear being connected with power transmission shaft 51 and transmission are installed inside motor gear 42, transmission assembly 50
Gear is intermeshed with motor gear 42, and the front end of transmission assembly 50 is threadedly coupled with torque set 20 and power transmission shaft 51 passes through power
Square set 20 is simultaneously connected with drill chuck 30, is provided with the middle part of casing in switch assembly 61, the bottom of casing and is provided with illuminating lamp
62 and battery pack 63, switch assembly 61, illuminating lamp 62, motor 40, battery pack 63 electrically connect and form closed-loop path, on casing
End offers and spirit bubble 70 is provided with the first groove 13 and the second groove 14, the first groove 13, is set in the second groove 14
There is magnet 80 and the edge of the second groove 14 extends internally and has lug 141, casing rear end, which is fixed, rear sheath body 90, with opening in the middle part of casing
Closing the opposite side of assembly 61 and fixing has handle sheath body 100, the rear both sides of sheath body 90 offer respectively multiple 3rd grooves 91 and after
Sheath body end after 90s offers multiple heat emission holes 92, and handle sheath body 100 is provided with multiple fins 101.
The casing of this Simple hand electric drill is combined by left casing 11 and right casing 12, easy to disassemble, can be recognized in time
The installation of electric hand drill internal structure and service condition, can find and solve the very first time when going wrong, and be conducive to maintenance
Personnel carry out regularly checking and maintenance to electric hand drill.
Motor 40, switch assembly 61, battery pack 63 are electrically connected, by the running of the controlled motor 40 of switch assembly 61, are electricity
Machine 40 provides operation power.Passed to when motor 40 is rotated by the travelling gear engaged with motor gear 42 by power is exported
Moving gear, further imparts power to the drill bit in power transmission shaft 51 and drill chuck 30, thus drilled, the correlation such as scraping
Work.Battery pack 63 includes many pieces of batteries closely, and so design had both increased the capacity of battery pack 63, during continuation of the journey
Between it is long, can have certain protective effect to battery again so that battery life is extended, further improve electric hand drill work
Ability.
Casing bottom is provided with illuminating lamp 62, and user can also carry out a series of brill under the inadequate environment of light
Hole, scraping operations, are unaffected, and disclosure satisfy that the demand of varying environment.
Electric hand drill top horizontal bubble 70 installation make it that precision is more increased when electric hand drill works, regulation level when angle more
Accurately, it is ensured that electric hand drill accuracy is good, working stability, the generation of mistake, efficiency high are reduced.In addition, also being installed at the top of electric hand drill
There is magnet 80, it is convenient to pick up the parts such as screw, bolt, part can be got out in advance, need not operationally lose time to seek
Look for, further improve the operating efficiency of electric hand drill.Magnet 80 is arranged in the second groove 14, the upper lug 141 of the second groove 14
Setting can prevent magnet 80 from dropping accidentally, it is to avoid influence be produced on work, while also avoiding in work high above the ground to user
Or periphery personnel damage.
It is noted that casing rear end, which is fixed, rear sheath body 90, and rear sheath body end after 90s offers multiple heat emission holes 92,
Heat emission hole 92 is communicated by the hole of casing rear end with casing internal, and heat is produced when electric hand drill works to be distributed by heat emission hole 92
Into external environment, heat will not be assembled, and do not interfere with the normal operation of electric hand drill internal mechanism, improve to a certain extent
The service life of electric hand drill.The both sides of sheath body 90 offer multiple 3rd grooves 91, casing middle part and the phase of switch assembly 61 respectively afterwards
The side of the back of the body, which is fixed, a handle sheath body 100 and handle sheath body 100 is provided with multiple fins 101, the 3rd groove 91 and fin 101
Set and cause whole electric hand drill good appearance, and with certain anti-skidding effect.
Preferably, the push rod 64 of the energy forward and backward of controlled motor 40 and the two ends difference of push rod 64 are also equipped with the middle part of casing
Through left casing 11 and right casing 12, push rod 64, motor 40, switch assembly 61, battery pack 63 electrically connect and form closed-loop path.
The setting of push rod 64 is easy in practical operation, according to the forward and backward of job requirement controlled motor 40, expand making for electric hand drill
With function, different demands can also be met.
It is further preferred that the assembly 65 that charges is also equipped with the bottom of casing, charging assembly 65 and the electricity of battery pack 63
Connect and form closed-loop path.The capacity of battery pack 63 of electric hand drill is limited after all, can be connected by the assembly 65 that charges with external power supply
Fetch and charged to battery pack 63, it is ensured that the related work such as the capacity of battery pack 63 can at any time be drilled for electric hand drill, scraping.
Above-mentioned rear sheath body 90 is made up of polyether-ether-ketone composite material, and the polyether-ether-ketone composite material is by following parts by weight
Composition is constituted：Polyether-ether-ketone：50-80 parts, polyether sulfone：10-25 parts, 5-25 parts of reinforcing fiber, heat filling：25-40 parts, coupling
Agent：0.2-3 parts, antioxidant：0.3-2 parts.
Table 1：The constituent and its parts by weight of sheath body after 1-5 of the embodiment of the present invention
Embodiment 1：
The grain of heat filling in raw material, raw material is weighed by the constituent and its parts by weight of sheath body after embodiment 1 in table 1
Footpath is 60 mesh, and a diameter of 0.1 μm of reinforcing fiber, draw ratio is 8：1, and by raw material polyether-ether-ketone be placed in vacuum drying chamber in
10h is dried at 100 DEG C.Then the raw material weighed is well mixed and is added in the barrel of injection machine, control hopper section
Temperature is 360 DEG C, and stage casing temperature is 420 DEG C, and back segment temperature is 400 DEG C, and raw material is heated into molten condition.Then by molten
The raw material of state is after nozzle injection to temperature is 180 DEG C in the mould of sheath body, and injection pressure is 100MPa, and injection time is
7s.After the completion of injection under 70MPa pressure pressurize 40s, finally cool down 30s obtain rear sheath body.
Embodiment 2：
The grain of heat filling in raw material, raw material is weighed by the constituent and its parts by weight of sheath body after embodiment 2 in table 1
Footpath is 80 mesh, and a diameter of 0.3 μm of reinforcing fiber, draw ratio is 10：1, and raw material polyether-ether-ketone is placed in vacuum drying chamber
In dry 8h at 110 DEG C.Then the raw material weighed is well mixed and is added in the barrel of injection machine, control hopper section
Temperature is 370 DEG C, and stage casing temperature is 430 DEG C, and back segment temperature is 420 DEG C, and raw material is heated into molten condition.Then by molten
The raw material of state is after nozzle injection to temperature is 200 DEG C in the mould of sheath body, and injection pressure is 110MPa, and injection time is
5s.After the completion of injection under 80MPa pressure pressurize 30s, finally cool down 25s obtain rear sheath body.
Embodiment 3：
The grain of heat filling in raw material, raw material is weighed by the constituent and its parts by weight of sheath body after embodiment 3 in table 1
Footpath is 90 mesh, and a diameter of 0.2 μm of reinforcing fiber, draw ratio is 10：1, and raw material polyether-ether-ketone is placed in vacuum drying chamber
In dry 8h at 120 DEG C.Then the raw material weighed is well mixed and is added in the barrel of injection machine, control hopper section
Temperature is 375 DEG C, and stage casing temperature is 435 DEG C, and back segment temperature is 425 DEG C, and raw material is heated into molten condition.Then by molten
The raw material of state is after nozzle injection to temperature is 210 DEG C in the mould of sheath body, and injection pressure is 120MPa, and injection time is
5s.After the completion of injection under 90MPa pressure pressurize 25s, finally cool down 20s obtain rear sheath body.
Embodiment 4：
The grain of heat filling in raw material, raw material is weighed by the constituent and its parts by weight of sheath body after embodiment 4 in table 1
Footpath is 100 mesh, and a diameter of 0.4 μm of reinforcing fiber, draw ratio is 12：1, and raw material polyether-ether-ketone is placed in vacuum drying chamber
In dry 8h at 130 DEG C.Then the raw material weighed is well mixed and is added in the barrel of injection machine, control hopper section
Temperature is 370 DEG C, and stage casing temperature is 440 DEG C, and back segment temperature is 410 DEG C, and raw material is heated into molten condition.Then by molten
The raw material of state is after nozzle injection to temperature is 190 DEG C in the mould of sheath body, and injection pressure is 115MPa, and injection time is
6s.After the completion of injection under 90MPa pressure pressurize 20s, finally cool down 20s obtain rear sheath body.
Embodiment 5：
The grain of heat filling in raw material, raw material is weighed by the constituent and its parts by weight of sheath body after embodiment 5 in table 1
Footpath is 120 mesh, and a diameter of 0.5 μm of reinforcing fiber, draw ratio is 15：1, and raw material polyether-ether-ketone is placed in vacuum drying chamber
In dry 6h at 140 DEG C.Then the raw material weighed is well mixed and is added in the barrel of injection machine, control hopper section
Temperature is 380 DEG C, and stage casing temperature is 450 DEG C, and back segment temperature is 430 DEG C, and raw material is heated into molten condition.Then by molten
The raw material of state is after nozzle injection to temperature is 220 DEG C in the mould of sheath body, and injection pressure is 130MPa, and injection time is
2s.After the completion of injection under 100MPa pressure pressurize 15s, finally cool down 15s obtain rear sheath body.
Rear sheath body progressive made from embodiment 1-5 can be tested, test result is as shown in table 2.
Table 2：Sheath body the performance test results after made from 1-5 of the embodiment of the present invention
As known from Table 2, the rear enclosure shell intensity being made up of polyether-ether-ketone composite material, the mechanical property such as fault growth rate is excellent
It is different, and by adding heat filling, the capacity of heat transmission of rear sheath body is improved, improve the thermal diffusivity of rear sheath body, it is to avoid casing
Interior temperature aggregation.
Rear sheath body made from the embodiment of the present invention is applied in Simple hand electric drill of the present invention, and rear sheath body rear end is opened up
Have multiple heat emission holes, heat emission hole is communicated by the hole of casing rear end with casing internal, by the rear sheath body with the capacity of heat transmission and
Using cooperatively for the heat emission hole that sheath body rear end is opened up afterwards, so that the thermal diffusivity of rear sheath body is improved, makes electric hand drill be produced when working
Heat can be dispersed into external environment in time, it is to avoid the temperature aggregation in casing, do not interfere with the normal of electric hand drill internal mechanism
Running, meets the job requirements of electric drill long-time high intensity, the temperature in use for improving electric drill and the use longevity for extending electric drill
Life.
This Simple hand electric drill is easy to operate, rational in infrastructure and is easy to examine maintenance, perfect heat-dissipating when using, service life
It is long.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (3)
1. a kind of Simple hand electric drill, including the casing fastened by left casing and right casing and the power installed in casing front end
Square set, drill chuck；
The motor and transmission assembly of motor output shaft are provided with the upper end of casing, the motor is exported by motor
Axle is connected with transmission assembly, is arranged with the motor output shaft inside motor gear, the transmission assembly and is provided with biography
Moving axis and the travelling gear and travelling gear that are connected with power transmission shaft are intermeshed with motor gear, before the transmission assembly
End is connected with torque external threading and the power transmission shaft covers through torque and is connected with drill chuck；
Casing upper end offers and spirit bubble is provided with the first groove and the second groove, the first groove, is set in the second groove
There is magnet and the second groove edge extends internally and has lug, switch assembly is installed in the middle part of casing；
The side opposite with switch assembly, which is fixed, in the middle part of casing handle sheath body, and handle sheath body is provided with some fins；
Illuminating lamp and battery pack, the switch assembly, illuminating lamp, motor, battery pack electrical connection are installed in the bottom of casing
And form closed-loop path；
Casing rear end, which is fixed, rear sheath body, if rear sheath body both sides offer some 3rd grooves respectively and rear sheath body rear end is offered
Dry heat emission hole；
The rear sheath body is made up of polyether-ether-ketone composite material, and the polyether-ether-ketone composite material is by following parts by weight into packet
Into：Polyether-ether-ketone：60 parts, polyether sulfone：15 parts, a diameter of 0.2 μm, draw ratio be 10：1 ultrafine titanium oxide fiber：15 parts, grain
Footpath is 90 20 parts of mesh BN heat fillings, and particle diameter is 90 10 parts of mesh SiC heat fillings, silane coupler：1 part, antioxidant：1 part；
The rear sheath body, which is prepared by the following method, to be formed：
S1, by the constituent and its parts by weight of above-mentioned rear sheath body raw material is weighed, and polyether-ether-ketone is placed in vacuum drying chamber
It is interior at 120 DEG C dry 8h；
S2, the above-mentioned raw material weighed is well mixed and be added in the barrel of injection machine, be heated to molten condition, wherein, material
Cylinder feed zone temperature is 375 DEG C, and stage casing temperature is 435 DEG C, and back segment temperature is 425 DEG C；
S3, by the raw material of above-mentioned molten condition by nozzle injection to temperature be 210 DEG C after sheath body mould in, injection pressure
For 120MPa, injection time is 5s, after the completion of injection under 90MPa pressure pressurize 25s, finally cool down 20s obtain rear sheath body.
2. a kind of Simple hand electric drill according to claim 1, it is characterised in that being also equipped with the middle part of the casing can control
The push rod of the motor forward and backward and two ends of push rod are each passed through left casing and right casing, the push rod, motor, switch assembly, electricity
Pond group electrically connects and forms closed-loop path.
3. a kind of Simple hand electric drill according to claim 1, it is characterised in that be also equipped with the bottom of the casing
Charge assembly, and the charging assembly electrically connects with battery pack and forms closed-loop path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410330495.4A CN104174895B (en) | 2014-07-11 | 2014-07-11 | A kind of Simple hand electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410330495.4A CN104174895B (en) | 2014-07-11 | 2014-07-11 | A kind of Simple hand electric drill |
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| Publication Number | Publication Date |
|---|---|
| CN104174895A CN104174895A (en) | 2014-12-03 |
| CN104174895B true CN104174895B (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410330495.4A Active CN104174895B (en) | 2014-07-11 | 2014-07-11 | A kind of Simple hand electric drill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108015322A (en) * | 2017-12-12 | 2018-05-11 | 重庆浪尖渝力科技有限公司 | Multifunction drill |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6431289B1 (en) * | 2001-01-23 | 2002-08-13 | Black & Decker Inc. | Multi-speed power tool transmission |
| US8251158B2 (en) * | 2008-11-08 | 2012-08-28 | Black & Decker Inc. | Multi-speed power tool transmission with alternative ring gear configuration |
| CN101508833A (en) * | 2008-11-28 | 2009-08-19 | 上海锦湖日丽塑料有限公司 | Chemically-resistant excellent PC//ABS alloy |
| JP5389495B2 (en) * | 2009-03-27 | 2014-01-15 | 株式会社スギノマシン | Air driven drill device |
| CN101735554B (en) * | 2009-12-31 | 2012-08-29 | 长沙理工大学 | Polyetheretherketone composite material, preparation method and application thereof |
| JP6106593B2 (en) * | 2011-10-03 | 2017-04-05 | 出光興産株式会社 | Polycarbonate resin composition |
| CN202934160U (en) * | 2012-12-05 | 2013-05-15 | 浙江明磊工具实业有限公司 | Electric driller provided with spirit bubble |
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Address after: 315145 Zhejiang city of Ningbo province Yinzhou District Binhai Investment Center East Yin Road No. 188 Patentee after: Zhejiang Minglei lithium energy technology Co., Ltd Address before: 315145 Zhejiang city of Ningbo province Yinzhou District Binhai Investment Center East Yin Road No. 188 Patentee before: ZHEJIANG MINGLEI TOOLS INDUSTRY Co.,Ltd. |