CN104160597B - Direct acting driving means - Google Patents

Abstract

The present invention provides a kind of direct acting driving means, the shell structure of described direct acting driving means (1) is, sweep need to arrange on conventional housing periphery the necessity protruding step-like ring-type carrier utilizing the mould of beading machine support and when crimping press-fits the necessity of sheet rubber of use sandwiched, can carry out in the front operation receiving gear-box (3) in shell (2) to the upper connection wiring substrate (92) of binding post (11b) and the wiring operation of adapter (91), simplify assembling operation.The shell structure of this direct acting driving means (1) is configured to, it is formed with storage reduction gearing component (12) respectively and the gear incorporating section (31) of motor (11) and motor incorporating section (32) at cylindric gear-box (3), utilization is formed at the concave part (311) of gear incorporating section (31) and is formed at the groove portion (61) of motor incorporating section (32) side via concavity lining (6), the arc surface of gear-box (3) is formed the concave groove of the connection of configuration power supply part, the inflow path for making aqueous sealant (7) flow into when wrapping embedding shell (2) can be formed.

Description

Direct acting driving means

Technical field

The present invention relates to the shell structure of a kind of direct acting driving means (straight device), described direct acting driving means bag Include: storage motor and the gear-box of reduction gearing component, bag be embedded in outside this gear-box cylinder lid shell, be provided with right Its open side carries out the base plate of the bearing block closed.

Background technology

In general, this direct acting driving means is in most cases used in the environment making a very bad impression enclosure interior In, under such circumstances, worry that the liquids and gases such as moisture, oil, dust, etchant gas, liquid fuel flow into enclosure interior, So needing to be set to prevent above-mentioned substance from flowing into, and the internal mechanism including motor is implemented the sealing knot of protection Structure.

All the time, it is known that the direct acting driving means of following shell structure, the shell of storage motor is assembled the most respectively The gear-box of the reduction gearing component of the rotation of (cover) and storage transmission motor, via binding post leading to motor Line fairlead (opening) interior filling sealing agent, and all ends between shell with gear-box engage part adhesive sheet rubber etc., Crimping also crimps the Zhou Duan (with reference to Fig. 2 of patent documentation 1, Fig. 1, Fig. 5 of patent documentation 2) sealing shell.

But, in the direct acting driving means of these shell structures, gear-box is only used to receive reducing gear the most specially Taking turns component and formed, wire fairlead is also made only on gear-box.It addition, motor is separating with the inner peripheral surface of shell It is built installation under state, is particularly configured on the outer peripheral face of the motor case of motor, offers and cut one portion The wiring hole divided and formed, the binding post being connected with the line end of magnet exciting coil via this wiring hole erects towards foreign side and sets Put, make binding post (supply lines) extend via in the region, broad space that the circumferential surface sections with this wiring hole is formed, After using flexible print cable to assemble housing, this binding post is made to become the fairlead part of gear-box and away from motor Position is connected with wire, and then fairlead is sealed by recycling sealant.

It is to say, in the structure of patent documentation 1, gear-box (7) is formed with the fairlead of tubular, specially In the structure of profit document 2, in fairlead (the rubber hole extension 1021) company of configuration of the upper one-body molded tubular of rubber layer (102) Connect device (105).

Therefore, for filling and the relation of sealing sealant (24,106), the wiring needs being connected with wire are by wiring Position is located at hole inner bottom part after drawing from the fairlead being in motor side and carry out the wiring operations such as soldering again, has and is difficult to The problem carrying out wiring operation.Particularly in the structure of patent documentation 2, make binding post (supply lines 303) to fairlead (rubber Hole extension 1021) hole bottom extend and make its front end pass, therefore, have binding post through time the finished product such as bend The unfavorable condition that rate is deteriorated, working performance reduces, thus exists and must make rubber layer (102) and gear-box (molded parts 11) point It is split into type assembling and causes components number to become many, need assembling operation time such shortcoming.

It addition, the most simply make motor be contained when separating with the inner peripheral surface of shell, therefore passing through Crimping crimping and during with gearbox seals, it is impossible to guarantee the shell structure rigidity to crimping direction, it is necessary to make outside crimping position The Zhou Duanyuan of shell and gear-box is prominent to periphery is formed as step-like, thus is provided for when above-mentioned crimping crimps supporting Ring-type carrier, in this sealing structure formed by crimping crimping, not only exist can not be by the periphery of whole housing Face is formed without the cylindrical shape of ring-type carrier, but also is difficult to crimp sealing completely, it is necessary to coated with resins sealant covers Exterior surface thus be reliably prevented fluid flow into this structure on problem.And, at the most not supporting motor In the shell structure of outer peripheral face, also leave such as in course of conveying by during intense impact induce motor holding intensity Problem and the problem bad to the action of workpiece, cause stream at aging, the bond-crack of sheet rubber etc. because of crimping crimping position In the case of body enters, worry that the binding post exposing in space in the enclosure occurs corrosion or short circuit, damage motor function.

Prior art literature

Patent documentation

Patent documentation 1:(Japan) Unexamined Patent 3-89826 publication

Patent documentation 2:(Japan) JP 2003-97660 publication

Summary of the invention

Invent technical problem to be solved

The present invention in order to sweep as above problem and make, its object is to provide one can simplify direct acting drive dress The assembling operation put, and can guarantee that the holding improving the rigid of whole shell structure and raising motor is strong simultaneously Degree, the shell structure of direct acting driving means of tightness.

By the record of this specification, the more specific object of the present invention will be apparent from.

For solving the means of technical problem

In order to solve above-mentioned technical problem, the technological means that the present invention uses constitutes as follows, i.e. direct acting driving means is being justified In the shell of cover shape, arrange: gear-box, the reduction gearing component of the rotation of its storage motor and this motor of transmission；The end Plate, it is located at the open side of shell, is used for installing bearing block, and the storage of this bearing block links linkedly with described reduction gearing component And the direct acting axle of movement of can retreating；Described motor has binding post, this binding post from cut motor case a part and The wiring hole formed, is connected with the line end of magnet exciting coil, and erects setting outward, and described gear-box has configuration reducing gear Gear incorporating section and the configuration motor incorporating section of motor of wheel component and be formed as cylindric, by the circular arc of its any width Face opening thus concave part concavely when forming section view in described gear incorporating section, make described motor incorporating section when section view For C-shaped thus form peristome, on the other hand, at the corresponding position of the described base plate opposed with described concave part, be provided for The wire powered to described binding post is drawn out to the wire outlet of outside, and by this wiring hole of covering and be formed as concavity To close the concavity lining of the rubber properties of described peristome, so that described binding post runs through prominent state and is arranged on described Wiring hole position, is arranged in peristome thus forms the concave groove being connected together with described concave part, make described shell bag It is embedded under the state outside described gear-box, utilizes inner circumferential face, concavity lining and the concave part of shell, formed and draw from described wire Outlet flows into the inflow path of aqueous sealant.

Invention effect

The sealing structure of the direct acting driving means of the present invention is a kind of via being provided with the base plate of bearing block to being accommodated in circle Motor in the shell of cover shape and gear-box carry out the direct acting driving means sealed, but owing to being formed with receipts in gear-box Receive the motor incorporating section of motor, it is possible to when firmly bag is embedding, utilize motor incorporating section to motor Outer peripheral face (with the inner circumferential plane-plane contact of motor incorporating section) and the outer surface of side, gear incorporating section (connect with the inner peripheral surface face of shell Touch) carry out assembling holding, in this condition, only it is arranged on electricity by being passed in concavity lining by projecting binding post The peristome of motivation incorporating section, it becomes possible to cover wiring hole and the closed peristome of motor case, formed with recessed on gear-box The concave groove that groove portion is connected together.Therefore, by gear-box storage front operation in the enclosure, it is possible to by wiring substrate and Adapter is connected to from the binding post that concavity lining highlights thus is arranged in concave groove, and can easily carry out and lead The wiring operation of line, it is possible to simplify assembling operation.And, after this wiring, only by shell bag is embedded in outside gear-box, with regard to energy Enough be supported in the state lower seal of enclosure bottom at motor and be maintained in motor incorporating section, formed be used for making aqueous close The inflow path that envelope agent flows into, and motor incorporating section can be utilized to accept crimp force when supporting bead crimps.

As a result of which it is, the Zhou Duanyuan completely without the shell and gear-box making crimping position as in the past is prominent to periphery Go out and be formed as step-like, and be provided with when crimping the ring-type carrier carrying out supporting, it is not required that use when crimping press-fits Sandwiched sheet rubber, it is possible to relative to the inner peripheral surface of the shell aqueous sealant of adhesive solidification securely, match with this, the most same Time guarantee to improve the rigid of whole shell structure and improve the holding intensity of motor, tightness, even if at bearing block Leading section be concatenated under the state being supported on workpiece side and impacted from outside, it is also possible to eliminate induction to the action of workpiece not Good misgivings.

Accompanying drawing explanation

Fig. 1 is the side view of the direct acting driving means representing embodiment of the present invention.

Fig. 2 is the front view of the direct acting driving means representing embodiment of the present invention.

Fig. 3 is the overall longitudinal section of the shell structure representing direct acting driving means.

Fig. 4 is the overall sectional elevation of the shell structure representing concavity hub sections.

Fig. 5 is the structure chart representing concavity lining, and Fig. 5 (A) is face side axonometric chart, and Fig. 5 (B) is rear side axonometric chart, Fig. 5 (C) is front view, and Fig. 5 (D) is top view, and Fig. 5 (E) is side view, and Fig. 5 (F) is longitudinal section.

Fig. 6 is the assembling decomposing schematic representation of direct acting driving means.

Detailed description of the invention

Hereinafter, based on accompanying drawing, the direct acting device that embodiment of the present invention is preferably come example is carried out in detail Describe in detail bright.

Fig. 1 is the side view of direct acting driving means, and Fig. 2 is its front view, and Fig. 3 is the housing knot representing direct acting driving means The overall sectional view of structure, Fig. 4 is the overall sectional elevation of the shell structure representing concavity hub sections.As shown in these figures, 1 is Direct acting driving means, this direct acting driving means 1 is made up of the shell 2 of cylinder lid, gear-box 3, base plate 4 and bearing block 5, above-mentioned Gear-box 3 is received the motor 11 such as PM type (permanent-magnet type) stepping motor, DC motor in shell 2 and transmits this motor 11 The reduction gearing component 12 of rotation, above-mentioned base plate 4 is located at the open side of shell 2, and above-mentioned bearing block 5 is accommodated with and is arranged on this end On plate 4, the direct acting axle 51 of movement of can retreating.For motor 11, DC motor, BLDC(Brushless can be used Direct Current: brushless direct-current) the known various motor such as motor, but in the present embodiment, have employed and can open Ring controls and is becoming favourable PM type (permanent-magnet type) stepping motor of present aspect.

Motor 11 includes: have the motor of the tubular as yoke of one group of coil rack 111 and magnet exciting coil 112 Shell 113；The rotor 114 of the inner circumferential side of motor case 113 can be arranged in rotatably；It is arranged in center and the one of rotor 114 The rotary shaft 115 rotated；Via flange 117, the base end side of rotary shaft 115 is implemented the bearing 116 of bearing supporting.

On the outer peripheral face of motor case 113, erect to housing foreign side from the wiring hole 11a cutting one part and formed Being provided with binding post 11b, this binding post 11b is to connect the coiling end of magnet exciting coil 112 in the way of the extraction of outside.

It is the round barrel cover shape of U shape that shell 2 is had when section view by week face 21 and bottom surface sections 22, open side Nose lip, compared with being built the base plate 4 of installation together with gear-box 3, further stretches out formation.This nose lip exists Make the state (not having the state of crimping) that the week face inner peripheral surface of 21 separates with the peripheral part of the upper side of discoideus base plate 4 Under, skewed by crimping inwardly side's about 45 ° of one-tenth of bending, thus form bevelled peripheral edge portion 23, keep being fixed up by base plate 4. Utilize the inner peripheral surface in this bevelled peripheral edge portion 23 and the peripheral part of the upper side of base plate 4, form the ∠ shape area of space of about 45 ° 23a, is configured to inflow region, forms the upper surface side to base plate 4 and pours into and fill the undertaking recess 71 of aqueous sealant 7.Separately Outward, the bottom surface sections 22 in shell 2, it is equipped with the discoideus sheet rubber 8a of its inner circumferential barrel dliameter size, at gear-box 3 and base plate Ring-type rubber seal 8b it is folded with between 4.

Gear-box 3 is integrally formed as cylindrical shape by resin material.Resin material can arbitrarily select, and adopts in the present embodiment With the high glass fiber reinforced plastics of intensity.In this gear-box 3, it is integrally formed with gear incorporating section 31 and motor is received Receiving portion 32, inner cylinder region is deviateed its center and is offered, and described gear incorporating section 31 configures is appointed by the gear of defined amount The reduction gearing component 12 that the reducing gear that meaning is combined into is constituted, described motor incorporating section 32 is configured with motor 11.Gear Structure in addition to can using the structure of the spur gear combining defined amount as in this embodiment, it is also possible to according to Purposes uses fluctuation gear mechanism, planetary gears.And, in the inside of gear-box 3, in order to support direct acting rotatably The base end part of axle 51 and each gear shaft, and recipient place supporting motor 11(motor case 113) upper surface and Zhou Duanyuan, shape Become the supporting carrier 33 being gone out the concavity mounting groove that the shape with them adapts by cutting.Motor incorporating section 32 Inner peripheral surface be formed as, when intercalation motor 11, carry out with the state of the outer peripheral face of the most opposed supports electric casing 113 Assemble and keep.Aqueous sealant is preferably capable chasing after the resin with flexibility of the coefficient of thermal expansion from metallic casing.In this reality Execute in example, employ and be there is appropriateness epoxy resin that is flexible and that hardened by mixing major ingredient and sclerosing agent.

As shown in Figure 4, the inner cylinder region that the perisporium of cylindric gear-box 3 is offered across bias, make side be formed For heavy wall, opposite side is formed as thin-walled.

At the heavy section of the perisporium of gear-box 3, cut outer circumferential surface section in gear incorporating section 31 and define concave part 311. I.e., as shown in Figure 6, in the outer circumferential surface section of gear-box 3, in the thick cylinder side of its eccentric openings cylinder, offer the arc surface of any width, Thus concave part 311 concavely when being formed at section view in gear incorporating section 31.

And, at the heavy section of the perisporium of gear-box 3, define peristome 321 in motor incorporating section 32.That is, such as figure 4, shown in Fig. 6, approximately C-shaped shape when this motor incorporating section 32 is set to section view and define peristome 321, at this peristome The wiring hole 11a and binding post 11b of motor case 113 is configured in 321.The external end edge making this peristome 321 slightly bloats, and makes Gear-box 3 is closely contacted the inner peripheral surface of shell 2 and carries out intercalation.

It addition, at the corresponding position of the base plate 4 opposed with concave part 311, be provided with for by leading of powering to binding post 11b Line 9 is drawn out to the wire outlet 41 of outside, and this wire outlet 41 is formed as same shape with the inner peripheral surface of concave part 311.

Bearing block 5 has the step can installed within running through the installing hole 42 being arranged on base plate 4 at its base end side Shape, arranges the installation portion 5a installed on oriented workpiece in the front that direct acting axle 51 protrudes/submerges, and bearing block 5 passes through on the whole Brass material is formed as cylindric, and this bearing block 5 is applicable to the leading section (valve body) of direct acting axle 51 is arranged in gas, liquid etc. Fluid piping valve chamber in and controlled the device of flow by the discharge orifice that open and close valve is indoor.In bearing block 5, it is provided with straight Moving axis 51, parts of bearings 53 and rotary shaft 52, described direct acting axle 51 is formed and a part of semilune cutting (D カ ッ ト) is formed For the threaded portion 511 as non-circular female thread of arc-shaped, described parts of bearings 53 has corresponding with this direct acting axle 51 embedding Closing tolerance and sliding guidance threaded portion 511, described rotary shaft 52 is in screw spindle part externally threaded with the conduct that threaded portion 511 screws togather The base end side of 521 is formed with the connection shaft portion 522 highlighted outward from bearing block 5.

Reduction gearing component 12(12b is installed in connection shaft portion 522), by the base end side of bearing block 5 with can be rotatably The state being bearing in supporting carrier 33 is embedded within running through the installing hole being arranged on base plate 4.Thus, direct acting axle 51 is configured to So-called feed screw mechanism can be utilized back and forth to drive, i.e. along with the rotation of rotary shaft 115 and via reduction gearing structure Part 12(12b) and the rotary shaft 52 that linked linkedly rotate, retreat so that the state rotated by restriction is screwed feeding Mobile so that it is highlight/to submerge relative to bearing block 5 in front end.

It should be noted that about remaining concrete structure of above-mentioned feed screw mechanism and function, with the Shen of the application That ask someone previously to have applied for, in the content described in the disclosed Publication as Japanese Unexamined Patent Publication 2010-266016 publication be Consistent, therefore omit the description.

Fig. 5 (A)～Fig. 5 (F) is the structure chart representing concavity lining 6, and as shown in these figures, concavity lining 6 utilizes groove portion 61 and carrier 62, it is integrally formed as indulging by elastomeric material covering the face shaping of wiring hole 11a and closed peristome 321 Generally L-shaped shape when section view, described groove portion 61 makes inner circumferential surface be formed as the side of the inner peripheral surface same shape with concave part 311 The substantially concavity of apparent time, described carrier 62 accepts aqueous sealant 7.The wiring hole 11a phase with motor case 113 in groove portion 61 To bottom surface sections be formed as having protuberance 611,611 and the thin binding post breakthrough part 612 of thickness, described protuberance 611,611 is formed For the flexure plane corresponding with the bottom surface sections in groove portion 61, the amount with size corresponding with the thickness of slab of motor case 113 is prominent from the back side, inserts Closing its periphery osculum in entering wiring hole 11a, described binding post breakthrough part 612 is recessed from the back side, so that binding post 11b is easy Pass between protuberance 611,611.It addition, carrier 62 is formed as the inclined plane tilted downwards towards the week facial 21 of shell 2. The front-end edge of rising portions and the front-end edge of carrier 62 of the both sides, groove portion 61 of concavity lining 6 are formed as and the side face of shell 2 The flexure plane that the inner peripheral surface in portion 21 is in close contact.

It is to say, the bottom surface sections in groove portion 61 is formed, by recessed with the thickness that the bottom surface on its surface Yu concave part 311 is coplanar When shape lining 6 is installed to wiring hole 11a position, even being spaced irregular binding post 11b, it is also possible to do not occur in its front end Through the binding post breakthrough part 612 that thickness is thin in the case of bending.From this state, protuberance 611,611 is being inserted into wiring hole When installing concavity lining 6 in 11a, groove portion 61 connects with concave part 311, forms concave groove together with concave part 311.This concavity The power supply part that groove is configured to the wire 9 powered to binding post 11b, adapter 91 and wiring substrate 92 etc. are arranged in groove is joined Put region, when wrapping embedding shell 2, two open ends (that is, the front-end edge of the rising portions of the both sides, groove portion 61 of concavity lining 6 with And the front-end edge of the rising portions of concave part 311 both sides) and the inner peripheral surface close contact of week face 21, when mounting base 4, this is recessed Shape groove connects with accepting recess 71 via wire outlet 41, becomes the ostium 72 flowing into aqueous sealant 7, thus forms stream Enter path.

It addition, in the present embodiment, as shown in Fig. 3, Fig. 6, the bottom surface of concave part 311 is made to sink to and be formed as step-like, The side, groove portion 61 making concave part 311 bottom surface is coplanar with bottom surface, groove portion 61, in both docking junctions, forms erection and joins Line substrate 92 mounting groove positioning it, wiring substrate 92 is connected to the binding post that the bottom surface sections from groove portion 61 is prominent On 11b.

Then, based on the decomposing schematic representation shown in Fig. 6, the package assembly of direct acting driving means is illustrated.First, make For front operation,

(1) bottom surface sections 22 in shell 2 lays sheet rubber 8a.

(2) rotor 114 can be rotationally mounted on motor 11, by making the front end of binding post 11b through wiring Post breakthrough part 612, is arranged on wiring hole 11a position by concavity lining 6.

(3) base end side of bearing block 5 is inserted the installing hole 42 of base plate 4, step-like by slightly highlight from installing hole 42 Zhou Duanyuan riveting (カ シ メ) of (ring-type) is fixed into and expands shape, in bearing block 5, will make screw spindle part 521 and screw thread The direct acting axle 51 that portion 511 screws togather inserts parts of bearings 53, and receives together with pad 54 and install.

(4) by reduction gearing component 12(12a, 12b, 12c) it is fixed on the shape on reduction gearing 12a, 12c with fulcrum State, is positioned in the gear incorporating section 31 of gear-box 3.

As assembling and load the rear operation of these parts,

(1) while the two sides of concavity lining 6 being inserted and the two sides of sliding contact peristome 321, by electronic Machine 11 inserts in the motor incorporating section 32 being positioned in gear-box 3.

(2) wiring substrate 92 is positioned in from the prominent binding post 11b of binding post breakthrough part 612 of concavity lining 6 also Carry out soldering and carry out wiring, base side-connector 91, and the adapter 91 of plug-in mounting wire 9 side wherein are installed on wiring substrate 92.

(3) state drawn from wire outlet 41 with wire 9, makes shell 2 bag be embedded in outside gear-box 3.

(4) the connection shaft portion 522 that will be projected into base plate 4 rear side is inserted to support the mounting slotted eye of carrier 33, makes to lead Line outlet 41 is positioned at the correspondence position of the concave part 311 of gear-box 3, thus will be provided with the base plate 4 of bearing block 5 across rubber Glue sealing member 8b is positioned in the upper surface of gear-box 3.

It should be noted that the assembling sequence of above-mentioned package assembly is arbitrary.

After completing to assemble, as final operation,

(5) by from open side nose lip inwardly side's crimping of the prominent shell 2 of base plate 4, bevelled peripheral edge portion 23 is formed Fastening teeth roller box 3, makes bearing block 5 be in upside, makes aqueous sealant 7 flow into and accepts recess 71 and connect with this undertaking recess 71 Ostium 72 and be allowed to solidify, thus complete assembling operation.

In embodiments of the present invention constructed as disclosed above, now, in the shell 2 of cylinder lid, storage tool There are the motor 11 from binding post 11b prominent for wiring hole 11a and gear-box 3, and are fitted with the base plate being mounted with bearing block 5 4 and seal, but, in the shell structure of the direct acting driving means 1 of the present invention, gear-box 3 has configuration reduction gearing Gear incorporating section 31 and the motor incorporating section 32 of configuration motor 11 of component 12 and be formed as cylindric, by it with the widest The arc surface opening of degree, thus the concave part 311 concavely when gear incorporating section 31 defines in section view, and make motor receive Receiving portion 32 is C-shaped when section view thus forms peristome 321.

Further, at the corresponding position of the base plate 4 opposed with concave part 311, it is provided for leading of powering to binding post 11b Line 9 is drawn out to the wire outlet 41 of outside, and by covering this wiring hole 11a and be formed as concavity with closed peristome 321 , the concavity lining 6 of rubber properties so that binding post 11b runs through prominent state and is arranged on wiring hole 11a position, and join Put at peristome 321 thus form the concave groove that groove portion 61 is connected together with concave part 311, be embedded in gear making shell 2 bag Under state outside case 3, utilize inner circumferential face, concavity lining 6 and the concave part 311 of shell 2, formed and flow into from wire outlet 41 The inflow path (ostium 72) of aqueous sealant 7.

When constituting in this way, it is a kind of via being provided with the base plate 4 of bearing block 5 shell to being accommodated in cylinder lid Motor 11 in 2 and gear-box 3 carry out the direct acting driving means sealed, but owing to being formed with storage in gear-box 3 The motor incorporating section 32 of motor 11, it is possible to when wrapping embedding protection securely, utilize motor incorporating section 32 To the outer surface of the outer peripheral face (with the inner circumferential plane-plane contact of motor incorporating section 32) of motor 11 and side, gear incorporating section 31 (with The inner circumferential plane-plane contact of shell 2) carry out assemble keep, in this condition, only by by projecting binding post 11b at concavity The binding post breakthrough part 612 of lining 6 passes and is arranged on the peristome 321 of motor incorporating section 32, it becomes possible to cover electronic The wiring hole 11a of casing 113 and closed peristome 321, form groove portion 61 on gear-box 3 and be connected together with concave part 311 Concave groove.Therefore, in the front operation that gear-box 3 is accommodated in shell 2, it is possible to wiring substrate 92 and adapter 91 are connected Receive from the prominent binding post 11b of concavity lining 6, thus be arranged in the concave groove being made up of groove portion 61 and concave part 311, Further, it is possible to the position near motor 11 easily carries out the wiring operation between wire 9, it is possible to simplify to assemble and make Industry.

And, after this wiring, only by shell 2 bag is embedded in outside gear-box 3, it becomes possible to formed and be used for making aqueous sealing The inflow path (ostium 72) that agent 7 flows into, not only so, additionally it is possible to it is supported in the bottom surface of shell 2 and close at motor 11 Envelope is maintained under the state in motor incorporating section 32, by the whole region of outer surface of motor case 113 to receive with motor The mode that the inner peripheral surface in portion 32 is in close contact stores, and makes the inner peripheral surface of shell 2 and the outer peripheral face of gear-box 3 closely connect Touch, be i.e. formed as described double sealing structure, it is possible to the pressure when utilizing motor incorporating section 32 to accept supporting bead crimping Under the state of relay, bending forms bevelled peripheral edge portion 23.

As a result of which it is, completely without as in the past, make the Zhou Duanyuan of the shell at crimping position and gear-box to periphery Highlight and be formed as step-like, arrange and utilize the mould of beading machine to carry out the ring-type carrier supported, it is not necessary to press-fit at crimping Time use sandwiched sheet rubber, it is possible to make whole housing miniaturization.

And, it is possible to utilize the aqueous sealant 7 being flowed into ostium 72 to fully seal wiring substrate 92 power supply part such as grade, And can match with relative to the inner peripheral surface of the shell 2 aqueous sealant of adhesive solidification securely 7, make inner space completely without, Guarantee improve the rigid of whole shell structure and improve the holding intensity of motor 11, tightness, even if at axle simultaneously The leading section of bearing 5 is concatenated under the state being supported on workpiece side, is impacted from outside, it is also possible to induction moved workpiece Make bad this misgivings to eliminate.

Accept further, since concavity lining 6 is provided with the aqueous sealant 7 to bottom surface sections 22 side being flowed into shell 2 Carrier 62, and be shaped generally as L shape when section view, therefore, it is possible to make the bottom surface of carrier 62 have and motor The end face of incorporating section 32 together and be laid on shell 2 bottom surface sections 22 sheet rubber 8a be in close contact thus keep concavity lining 6 Function, further, it is possible to make the outer peripheral face of carrier 62 be in close contact, as the end of ostium 72 with the inner circumferential face of shell 2 Face carrys out function, therefore, it is possible to utilize the aqueous sealant 7 flowed into, is reliably being in close contact by concavity lining 6 and is protecting Assemble when holding in ostium 72.

It is additionally, since the inner circumferential face close contact of carrier 62 and the week facial 21 of shell 2, and from the end in groove portion 61 Bottom surface sections 22 side (in figure 3 for lower section) being formed obliquely facing to front end to shell 2, therefore, it is possible to make groove portion 61 hold Connect side, portion 62 and be formed as expanding shape, and easily carry out the operation of wiring substrate 92 plug-in mounting on binding post 11b and pass through Soldering implement wiring operation, the inclined plane of carrier 62 can by flow into aqueous sealant 7 from the inner peripheral surface side of shell 2 to Wiring substrate 92 side is filled, it is possible to prevents bubble, and can be in close contact securely.

Further, since on the bottom surface of the bottom surface of concavity lining 6 and concave part 311, be provided with across respective bottom surface The wiring substrate 92 being connected with binding post 11b, therefore, the face that erects of the both sides, groove portion 61 of concavity lining 6 and concave part 311 liang The face that erects of side carrys out function when loading wiring substrate 92 as spigot surface, it is possible to be positioned at the front end of binding post 11b In the through hole of the wiring substrate 92 that the arrangement (six roots of sensation) with binding post 11b is correspondingly arranged, it is possible to be allowed in the feelings not bent Easily pass through under condition, it is possible to easily carry out loading operation.It is additionally, since wiring substrate 92 to be configured to across concavity lining 6 and two bottom surfaces of concave part 311 and the state that is in close contact, therefore, without compromising on formed by groove portion 61 and concave part 311 The function as power supply part configuring area of concave groove, it is possible to when guaranteeing the inflow path of ostium 72, will lead Line 9 and adapter 91 are accommodated in concave groove.

It addition, shell 2 makes its nose lip further stretch out formation compared with base plate 4, by this nose lip at it Under the state that inner peripheral surface separates with the peripheral part of the upper side of base plate 4, inwardly side is bent into skewed and forms bevelled peripheral edge portion 23, utilize this bevelled peripheral edge portion 23 to keep fixing base plate 4, and, by formed by the inner peripheral surface in bevelled peripheral edge portion 23 and base plate 4 ∠ shape area of space 23a is configured to the inflow region of aqueous sealant 7.

When constituting in this way, in the upper surface side of base plate 4, bevelled peripheral edge portion 23 erects, it is possible to formation makes aqueous close Envelope agent 7 flows into the undertaking recess 71 filled, only by making aqueous sealant 7 flow into this undertaking recess 71, it becomes possible to to tilt Under the state that thicker thickness corresponding to the width that circumference 23 erects is adhesively fixed, reliably seal and accept the whole of recess 71 Individual region.Therefore, it is not only able to utilize the aqueous sealant 7 being flowed in ∠ shape area of space 23a reliably bond and seal The inner peripheral surface in bevelled peripheral edge portion 23 and the top circumferential surface of base plate 4, additionally it is possible to boning simultaneously and sealing it is arranged on the end with erecting The joint periphery between bearing block 5 on plate 4.

It is additionally, since and flows into the undertaking recess 71 of aqueous sealant 7 and connect with wire outlet 41, therefore, it is possible to make stream Enter and flow in flowing into path (ostium 72) from wire outlet 41 to the aqueous sealant 7 accepting recess 71, or, it is possible to The aqueous sealant 7 being flowed in inflow path (ostium 72) from wire outlet 41 is utilized to fill up in undertaking recess 71, Sealing operation can be easily carried out in one procedure.

Therefore, with the situation phase of the open side nose lip crimping shell 2 via sheet rubber inwardly side's crimping in the past like that Ratio, it is possible to sweep the misgivings that the laminating produced because of crimping is bad, it is not necessary to coat tree on whole of housing after fabrication Fat sealant, it is possible to make housing be formed as reliably and seal structure.

Description of reference numerals

1 direct acting driving means

11 motor

11a wiring hole

11b binding post

111 coil racks

112 magnet exciting coils

113 motor cases

114 rotors

115 rotary shafts

116 bearings

117 flanges

12 reduction gearing components

2 shells

21 weeks faces

22 bottom surface sections

23 bevelled peripheral edge portions

23a ∠ shape area of space

3 gear-boxes

31 gear incorporating sections

311 concave parts

32 motor incorporating sections

321 peristomes

33 supporting carriers

4 base plates

41 wire outlets

42 installing holes

5 bearing blocks

5a installation portion

51 direct acting axles

511 threaded portions

52 rotary shafts

521 screw spindle part

522 connection shaft portions

53 parts of bearings

54 pads

6 concavity linings

61 groove portions

611 protuberances

612 binding post breakthrough parts

62 carriers

7 aqueous sealants

71 accept recess

72 ostiums

8a sheet rubber

8b sheet rubber

9 wires

91 adapters

92 wiring substrates

Claims (6)

1. the shell structure of a direct acting driving means, it is characterised in that described direct acting driving means includes:

Cylindric shell, it includes week face, bottom surface sections and opening；

Gear-box, it is located in described shell, and receives the reduction gear of the rotation of motor and this motor of transmission；

Base plate, it is located at the open side of described shell, and is provided with bearing block；

Direct acting axle, it is accommodated in described bearing block, and links linkedly with described reduction gear；

Described motor has the binding post that the line end with magnet exciting coil is connected, and described binding post is from being formed at described motor Motor case on wiring hole stretch out outward,

Described gear-box has the gear incorporating section configuring described reduction gear and the motor receipts configuring described motor Receive portion, and be formed as cylindric, in a part for the cylindric perisporium of described gear-box, in the position shape of described gear incorporating section Become fluted portion, and be formed with peristome in the position of described motor incorporating section,

On described base plate, being correspondingly formed wire outlet with described concave part, this wire outlet is used for will be to described The wire that binding post is powered is drawn out to outside,

At the described peristome of described motor incorporating section, it is configured with to cover described wiring hole and be formed as concavity and opens to close this The concavity lining of the rubber properties of oral area, described binding post is prominent to the groove portion of this concavity lining through described concavity lining, Further, the described groove portion of described concavity lining connects with described concave part, forms concave groove,

When described shell bag is embedded in outside described gear-box, utilize the inner peripheral surface of described all faces of described shell, institute State the described groove portion of concavity lining and described concave part, form the inflow making aqueous sealant flow into from described wire outlet and lead to Road.

2. the shell structure of direct acting driving means as claimed in claim 1, it is characterised in that

Described concavity lining includes carrier, and this carrier accepts the aqueous sealant of the bottom surface sections side being flowed into described shell.

3. the shell structure of direct acting driving means as claimed in claim 2, it is characterised in that

Described carrier is in close contact with the described inner peripheral surface of described shell, and, described carrier is from the end of this concavity lining Oblique towards the bottom surface sections inclination of described shell towards the described inner peripheral surface of described shell.

4. the shell structure of direct acting driving means as claimed in claim 1, it is characterised in that

In bottom surface and the bottom surface of described concave part of described concavity lining, it is provided with connects with described across bottom surface described in the two The wiring substrate that terminal connects.

5. the shell structure of direct acting driving means as claimed in claim 1, it is characterised in that

Described shell includes the nose lip further stretched out compared with described base plate, is the most just bent into by this nose lip Skewed and form bevelled peripheral edge portion, utilize this bevelled peripheral edge portion to keep fixing described base plate, and, by this bevelled peripheral edge portion The area of space that inner peripheral surface and described base plate are formed is configured to the inflow region of aqueous sealant.

6. the shell structure of direct acting driving means as claimed in claim 5, it is characterised in that

Utilizing described bevelled peripheral edge portion and described base plate to form the undertaking recess making aqueous sealant flow into, this undertaking recess is constituted For connecting with described wire outlet, the aqueous sealant flowing into undertaking recess flows in described inflow path.