CN103166414B - Motor and use the concrete vibration stick of this motor - Google Patents

Abstract

The invention discloses motor and use the concrete vibration stick of this motor, wherein, brush motor, the rotor comprising stator, rotating shaft and be fixed in rotating shaft, described rotating shaft support by bearing, described rotating shaft is provided with rectification sub-member, and the brush assembly of electric of correspondence, described motor rear end supports the clutch shaft bearing of described rotating shaft between rotor and rectification sub-member, described rotor and rectification sub-member, brush assembly of electric are divided and be interposed between in two different spaces, to make described rectification sub-member, brush assembly of electric is in space outside described clutch shaft bearing.And disclose a kind of method improving brush motor service behaviour.Also disclose a kind of concrete vibration stick using above-mentioned brush motor, the pipeline type cavity connects in the space outside described clutch shaft bearing and described liner system.The present invention just effectively can meet the Specifications of vibrating spear without the need to any external equipment.

Description

Motor and use the concrete vibration stick of this motor

Technical field

The present invention relates to a kind of internal concrete vibrator, particularly relate to a kind of internal motor concrete vibration stick; And also relate to a motor.

Background technology

Concrete vibration stick (hereinafter referred to as vibrating spear), also known as concrete vibration bar, internal concrete vibrator, immersible concrete vibrator etc., during work, the barred body of vibrating spear is inserted inside concrete, its vibration wave is directly passed to concrete, realizes when pouring concrete builds, get rid of bubble wherein, make firm by ramming, concrete compaction is combined, eliminate the phenomenons such as concrete honeycomb, pitted skin, to improve its intensity, ensure the quality of concrete component.In order to effectively achieve the above object, according to associated specifications, the vibration frequency of concrete vibration stick requires at more than 167Hz, belong to high speed vibrator, if provide vibration power source in a rotative pattern, when not carrying out frequency conversion (speed change) to rotational power source, its rotating speed should at 10000rpm(rev/min, r/m) more than.Therefore, realize this type of concrete vibration stick, what first need solution is obtain the vibration frequency meeting above-mentioned requirements, i.e. rotating speed problem; Next is can long-time reliably working under particular circumstances.

The concrete vibration stick generally used now comprises motor external and internal motor.Along with the needs of the development of technology, the Miniaturization Design of equipment and environmental protection and energy saving etc., the concrete vibration stick of internal motor progressively substitutes motor external concrete vibration stick.Internal motor concrete vibration stick is arranged in the barred body of vibrating spear by providing the motor of vibration power source, and drive the vibrating mechanism in barred body, reach the object to barred body vibration, in specific implementation, described vibrating mechanism generally realizes (structure principle chart that Fig. 6 provides the vibrational system that described vibrating mechanism is formed) with eccentric block.In use, the barred body of concrete vibration stick is inserted inside concrete and carry out work.Due to barred body structure, size, especially the restriction of its inner space, present known this kind of concrete vibration stick, generally adopt the comparatively simple synchronous or asynchronous ac motor (as squirrel-cage alternating current motor) of structure as power source, because the rotating speed of this type of alternating current motor is by the restriction (such as China's frequency of supply is 50Hz) of ac frequency, therefore its rotating speed is low.In order to reach applicable vibration frequency, frequency-conversion processing must be carried out.The first adopts the rotation output of mechanical frequency conversion (speed change) structure to motivation to carry out speed change, improves the rotary speed of eccentric block, and to reach corresponding vibration frequency, this kind equipment, due to complex structure, uses few.Another kind of is be that more than 167Hz (rotating speed of alternating current motor can be made to reach 10000rpm) is exported and powers to concrete vibration stick, to meet the demands by special frequency-variable electronic control appliance by frequency of supply frequency conversion.Therefore need to adopt different frequency conversion control devices or control method according to different frequency of supplies, output frequency.

In the vibrating spear of above-mentioned two kinds of structures, due to the vibrating spear adopting frequency-variable electronic device to realize, its barred body structure is simple, it is the technical scheme that domestic and international high-end concrete vibration stick generally adopts, the advantage of this kind of vibrating spear is that barred body is as consumable accessory, structure is simple, and replacement cost is relatively low, and can Reusability as the high frequency conversion control device of cost (general every platform price reach several thousand even up to ten thousand yuans).But, although the frequency-variable electronic control appliance of this kind of vibrating spear can be reused, but because adopting frequency-variable electronic technology, it often has higher requirement to operational environment, and the construction environment in construction site is severe, dust and humidity high, and the equipment transportation in work progress, the management maintenance in use procedure are slightly improper etc. all extremely easily causes fragile frequency-variable electronic control appliance to damage, and cause purchasing, operation and maintenance cost is high.Meanwhile, because it comprises two parts, all very inconvenient in equipment transportation, use procedure, often need two personal synergics just can finish the work; On the other hand, because it can only use alternating current work, the power supply etc. for construction site is proposed requirement, and often needing to connect up or arrange generating equipment accordingly could work, and is extremely not easy to carrying out of construction working.

Due to DC motor, its rotating speed is not by the impact of frequency of supply, both its rotating speed can have been made easily to reach 10000rpm by existing conventional electric motor designing technique, therefore someone proposes the power source of the conventional DC motor of utilization as electric motor built-in concrete vibration stick.

Chinese utility model patent application 98229657.6(title: Electromachime built-in insertion type concrete vibrator) disclose the technical scheme adopting conventional DC motor to realize; common DC motor directly loads in airtight barred body by it; because barred body when using inserts in concrete; in order to protect motor; simultaneously also in order to carry out insulation; ensure that it can work, barred body must be carried out good sealing.But during DC motor work, brush and commutator are (also known as commutator, Commutator) can electric spark be produced between and form high temperature (its temperature exceed rotor many) and cannot dispel the heat, wear of brush produces powder (dust) etc. and cannot discharge, and extremely easily causes the damage of assembly and the destruction of insulation property such as brush, commutator, rotor, stator that are in same enclosure space.Due to the limited space in barred body, brush is because its inner space is little and the existence of the parts such as rotor, stator and cause installing inconvenience, and the impact of high temperature and brush dust also makes insulation processing difficulty, even cannot process.And, brush and commutator are in the course of the work, need constantly on its working face, to form oxide-film and reduce wearing and tearing, corresponding oxidation environment (need certain oxygen and humidity, generally common air just can provide such oxidation environment) cannot be provided in confined space.The poor practicability of this technical scheme reality, cannot realize can actual " vibrating spear " used, and one start just may burn out.

Chinese utility model patent application 200520018353.0(title: integrated concrete vibrating spear of brushless DC motor system) disclose the technical scheme adopting brushless DC motor to realize.Although it solves the above-mentioned defect in conventional DC motor, but the Hall element cooperating of the Brushless DC Motor Controller special due to the need of work of brushless DC motor and detection motor turned position state, because barred body space and environmental limit Brushless DC Motor Controller can only be arranged on outside, and be connected with brushless DC motor by cable, and Hall element must be arranged in barred body and with the Brushless DC Motor Controller of outside and is connected, the whole equipment of this structure is also made up of (barred body and Brushless DC Motor Controller) two parts, result in the defect similar with using the technical scheme of alternating current motor, just Brushless DC Motor Controller volume is relatively little.On the other hand, in construction, changed power causes very greatly current of electric to alter a great deal, and the shock-resistant ability of frequency-variable electronic control appliance electronic component is poor; And Hall element is more fragile, very easily damage under complicated and severe construction environment, and because barred body is in air-tight state, the high temperature of the work formation of motor also can reduce the working life of Hall element greatly, even causes damage to it.Meanwhile, its cost is also relatively high.For these reasons, adopt the vibrating spear poor practicability of this technical scheme, actual use value is not high yet.

To sum up can find out, because barred body size restrictions causes limited space in barred body, when not needing external equipment, existing correlation technique is difficult to realize common motor directly to implant vibrating spear barred body to realize Specifications.

Summary of the invention

In view of above defect, technical problem to be solved by this invention is to provide a kind of without the need to external equipment, and volume is little, structure is simple, can meet the internal motor concrete vibration stick of practice of construction instructions for use.

And a kind of brush motor that can normally work in a limited space is provided.

And provide a kind of method improving brush motor service behaviour.

The technical solution used in the present invention is:

A kind of brush motor, the rotor comprising stator, rotating shaft and be fixed in rotating shaft, described rotating shaft support by bearing, described rotating shaft is provided with rectification sub-member, and the brush assembly of electric of correspondence, described motor rear end supports the clutch shaft bearing of described rotating shaft between rotor and rectification sub-member, described rotor and rectification sub-member, brush assembly of electric is divided and is interposed between in two different spaces, and to make described rectification sub-member, brush assembly of electric is in space outside described clutch shaft bearing; And comprise an air circulation system, the space articulation at described air circulation system and described rectification sub-member, brush assembly of electric place; Described air circulation system comprises Forced Air Convection parts, convection current air channel, the air circulation being full of air and storage cavity; Described air circulation system comprises a filtration members further, and described filtration members is arranged on described air circulation and stores in cavity, and described air circulation and storage cavity are separated into the second cavity, the 3rd cavity; Described convection current air channel comprises the first air channel be communicated with the 3rd cavity in the space at described rectification sub-member, brush assembly of electric place; Through the second air channel that described second cavity is communicated with the space at described rectification sub-member, brush assembly of electric place by described Forced Air Convection parts.

Preferably, the space at described rectification sub-member, brush assembly of electric place and a cavity connects, have gas in described cavity, and described gas forms the oxidation environment forming oxide-film when being beneficial to described rectification sub-member, brush assembly of electric work.

A kind of concrete vibration stick, comprises barred body, is provided with vibrational system, for described vibrational system provides the electric motor system of power, the liner system be connected with described barred body, described electric motor system is foregoing brush motor in barred body; Pipeline type cavity is had in described liner system; Space outside the described clutch shaft bearing at described rectification sub-member, brush assembly of electric place and the pipeline type cavity connects in described liner system; And comprising a filtration members, ducting assembly and Forced Air Convection parts, described Forced Air Convection parts are between the space and described ducting assembly at described rectification sub-member, brush assembly of electric place; Described filtration members is arranged in described pipeline type cavity, and described pipeline type cavity is separated into the second cavity being positioned at liner system front end, the 3rd cavity being positioned at liner system rear end; Described ducting assembly comprises the infundibulate back cavity being positioned at front end, is arranged on the return duct that bottom back cavity, through ducting assembly is communicated with outside it; Opening is located at ducting assembly front side and the discharge be communicated with the collecting pipe being positioned at ducting assembly rear end; Return duct, discharge are crisscross arranged on ducting assembly, and the wall from different directions through ducting assembly is not still communicated with each other; Described collecting pipe is connected with blast pipe, and described blast pipe is communicated with described 3rd cavity through described filtration members; Described blast pipe, ducting assembly form return flow line in the pipeline type cavity of liner system; Described Forced Air Convection parts are arranged on the end in barred body, and the interval between described gas forced convertion parts and barred body shell forms exhaust passage; The space at described rectification sub-member, brush assembly of electric place is communicated with the 3rd cavity by described exhaust passage, discharge, collecting pipe, blast pipe; The space of described second cavity with described rectification sub-member, brush assembly of electric place is communicated with through Forced Air Convection parts by return flow line, return duct, back cavity; Under the effect of described Forced Air Convection parts described rectification sub-member, brush assembly of electric place space in dust-laden hot gas through described 3rd cavity, second cavity heat radiation, through described filtration members dust removal by filtration, again enter the space at described rectification sub-member, brush assembly of electric place.

Preferably, the vibration gyroaxis of described vibrational system is connected with the rotating shaft of described motor, and described vibration gyroaxis runs through the second bearing and by described second bearings, is furnished with eccentric part respectively in described second bearing both sides.

Preferably, the eccentric part outside described second bearing is be arranged on the eccentric block on described vibration gyroaxis; The barycenter of described motor rotor departs from the rotation of described rotating shaft, forms the eccentric part be positioned at inside described second bearing.

Preferably, the described vibration gyroaxis inside described second bearing arranges an eccentric block; The barycenter of described two eccentric blocks and the barycenter of described motor rotor are positioned at the homonymy of rotation.

Preferably, comprise one further and be arranged on power control system in liner system interior conduit type cavity, described power control system is connected with feed cable, and powers for described electric motor system; Described power control system comprises a control switch or transducer, and described control switch or transducer are fixed in the pipeline type cavity near liner system front end and described barred body connecting portion.

Preferably, described power control system comprises memory circuit, transducer, and described transducer is magnetoresistive sensor; Described memory circuit is connected with feed cable, and described memory circuit is connected with described magnetoresistive sensor by control line, and described memory circuit is connected with described electric motor system by motor cable; The operating state of described magnetoresistive sensor is slipped over by the magnetic element being positioned at liner system outside and controls.

Improve a method for brush motor service behaviour, in order to improve the service behaviour of brush motor in closed environment, the rectification sub-member of described motor, brush assembly of electric are moved on to outside the space residing for rotor; By the space articulation at an air circulation system and described rectification sub-member, brush assembly of electric place; Described air circulation system comprises Forced Air Convection parts, convection current air channel, the air circulation being full of air and storage cavity; Described air circulation system comprises a filtration members further, and described filtration members is arranged on described air circulation and stores in cavity, and described air circulation and storage cavity are separated into the second cavity, the 3rd cavity; Described convection current air channel comprises the first air channel be communicated with the 3rd cavity in the space at described rectification sub-member, brush assembly of electric place; Through the second air channel that described second cavity is communicated with the space at described rectification sub-member, brush assembly of electric place by described Forced Air Convection parts.

Circulated and/or filtration treatment by the gas in space residing for described rectification sub-member, brush assembly of electric, for described rectification sub-member, brush assembly of electric provide suitable operational environment.

With regard to technique effect: the brush motor realized based on technique scheme effectively improves its service behaviour under closed environment, effective guarantee its normally work.Using brush motor as power source, the internal motor concrete vibration stick that adopts above-mentioned technological means to realize, its rotating speed can reach 11000-12000rpm, even higher, effectively meets the Specifications of concrete vibration stick.Just existing alternating current can be used to carry out work, even can directly use storage battery power supply work.According to repetition test, utilize the concrete vibration stick that technique scheme realizes, can fault-free more than continuous operation 200h, if the accessory selecting performance more superior (as bearing etc.), the no-failure operation life-span can also be provided further; And also can not be able to damage when continuing the longer idle period.The present invention adopts brush motor to embed barred body, achieves without the need to special frequency conversion control device, directly utilizes the electric power of any frequency normally to work, and directly uses direct current to carry out work, such as, adopt carry-along storage battery to carry out work.For alternating current, only need a simple bridge rectifier both can realize work (if adopt silicon steel sheet winding type stator, also can work without the need to rectification).Preferred use DC motor, its power consumption is little, and volume is little, and torque is large, and the exciting force of formation is strong, is well positioned to meet relevant design index." choosing " type of employing vibrational system, can form desirable circular vibration model ---barred body end is zero shake a little not by exciting force, exciting force concentrate be applied to barred body front end vibration head on, and to vibrate as vibration free end, effectively strengthen the exciting force of barred body, and long service life.

Accompanying drawing explanation

In order to more clearly describe related art scheme involved in the present invention, the accompanying drawing related to below gives simple declaration, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

The structural representation of Fig. 1 concrete vibration stick one of the present invention embodiment;

The partial structurtes schematic diagram of Fig. 2 another embodiment of concrete vibration stick of the present invention;

The structural representation of Fig. 3 clutch shaft bearing cover;

The front view of Fig. 4 fan;

The front view of Fig. 5 ducting assembly;

Concrete vibration stick vibrational system schematic diagram in Fig. 6 prior art;

The schematic diagram of vibrational system one embodiment in Fig. 7 the present invention;

The schematic diagram of another embodiment of vibrational system in Fig. 8 the present invention;

Fig. 9 is the structural representation of Fig. 7 embodiment;

Figure 10 is the structural representation of Fig. 8 embodiment;

The silicon steel structure schematic diagram of electric motor structure one embodiment in Figure 11 the present invention;

The rotor structure schematic diagram of another embodiment of electric motor structure in Figure 12 the present invention;

The structural representation of Figure 13 liner system terminus inner parts;

The theory diagram of power control system one embodiment in Figure 14 the present invention;

The theory diagram of another embodiment of power control system in Figure 15 the present invention;

The structure principle chart of a kind of transducer that power control system one embodiment uses in Figure 16 the present invention;

The structure principle chart of a kind of control switch that another embodiment of power control system uses in Figure 17 the present invention.

Description of reference numerals:

1. vibrational system; 11. first eccentric blocks; 110. eccentric block; 12. eccentric block fastening bolts; 13. vibration gyroaxises; 14. second bearings; 141. first load-bearing bearings; 142. second load-bearing bearings; 15. second eccentric blocks; 2. electric motor system; 21. rotors; 2101. lug boss; 2102. slot for winding; 2103. barycenter adjusting hole; 2104. low-density slot wedge; 2105. high density slot wedge; 211. little Quality Mgmt Dept; 212. large Quality Mgmt Dept; 22. stators; 23. rotating shafts; 230. shaft hole; 24. clutch shaft bearing covers; 241. wire casing; 25. clutch shaft bearings; 3. brush assembly of electric; 31. supports; 32. rectification sub-members; 33. brush carriers; 34. brushes; 4. air circulation system; 40. air compressor machines; 401. puff prot; 402. air entry; 41. first cavitys; 42. fans; 421. insulation cushion; 422. fan fastening bolts; 4220. fan fastener hole; 423. connector; 424. flabellum; 425. guard ring; 43. exhaust passages; 44. ducting assemblies; 441. back cavity; 442. return duct; 443. discharge; 444. collecting pipe; 45. barriers; 46. blast pipes; 47. second cavitys; 48. filtration members; 49. the 3rd cavitys; 5. barred body; 51. vibration head; 52. shells; 6. liner system; 61. first connectors; 610. return flow line; 62. hose retainer; 63. flexible pipes; 64. end caps; 641. second connectors; 642. thread guard; 7. power-supply controller of electric; 71. control switchs; 711. vibrating sensor; 7111. insulation crust; 7112. pendulum; 7113. elastomeric element; 712. shake control switches; 7114. touch control electrode; 7121. housing; 7122. vibration hammer; 7123. reply parts; 7124. push type memory switch; 7125. button; 72. control lines; 73. motor cable; 74. feed cables.

Embodiment

For the ease of those skilled in the art's a further understanding of the present invention, and the technical scheme be clearly familiar with described in the application, complete, correlation technique content of the present invention is disclosed fully, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, apparently, described embodiment only gives a part of embodiment of the present invention to enumerate mode, understands the present invention and core concept thereof for helping.Based on the embodiment in the present invention; those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite; and/or when not deviating from the present invention's spirit and essence thereof; even if make various corresponding change and distortion according to the present invention, but these change accordingly and distortion all should belong to the present invention's scope required for protection.

The relational language that the present invention relates to defines or remarks additionally as follows:

Motor is (English: Electricmotor), electric energy to be become the machine of mechanical energy, by the rotor turns of electromagnetic induction drive motors, and by the external output mechanical energy of rotor, can be divided into DC motor and alternating current motor.Brush motor is a type wherein, it comprises brush DC motors, series excitation type AC/DC motor, it is all realize external electric energy to flow to rotor by the cooperation of brush and commutator, the basic structure of the two is identical or close, can utilize interchange or direct current work, just different structures exports at cost and effective power exists certain difference.

Centrifugal force (Centrifugalforce), refers to produce because object rotates depart from the power of pivot, also refers to that one in rotating reference frame is depending on showing power, and it makes object leave rotating shaft along radial direction outwards to depart from, and numerical value equals centripetal force but direction is contrary.In the present invention, centrifugal force is produced by the eccentric part rotated.The barycenter of described eccentric part, not on rotation, comprises the parts that eccentric block etc. has eccentric structure.

Exciting force (Excitationforce), makes it vibrative power by vibration machine stimulus movement parts and test specimen.In the present invention, produce centrifugal force by the eccentric part rotated in vibrational system, form the exciting force of vibrational system.

The present invention, by moving on to outside the space residing for rotor by the rectification sub-member of described motor, brush assembly of electric, in order to improve the service behaviour of brush motor in closed environment, thus achieves a kind of method improving brush motor service behaviour.Further, circulated and/or filtration treatment by the gas in space residing for described rectification sub-member, brush assembly of electric, for described rectification sub-member, brush assembly of electric provide suitable operational environment.And thus achieve a kind of brush motor, and the internal motor concrete vibration stick utilizing described brush motor to realize.

Give the example of embody rule and realization below by way of example:

As shown in Figure 1, concrete vibration stick comprises barred body 5, and the liner system 6 be connected with barred body 5.

Barred body 5 is by shell 52 and set gradually vibrational system 1 within it, provide the rectification sub-member 32 to its electric energy transmitting on the electric motor system 2 of power, electric motor system 2 to form with the section components in brush assembly of electric 3 and air circulation system 4 for vibrational system 1.Particularly:

The shell 52 forward end place of barred body 5 is vibration head 51, namely vibration head 51 is the front end packaged unit of barred body 5, also be that barred body 5 vibrates the maximum position of amplitude in the course of work, that the strongest position of exciting force is applied to concrete, therefore it should have higher intensity, shock-resistant and wear-resistant to realize.Meanwhile, generally for the total quality increasing barred body 5, different counterweights can be adopted as required.Vibration head 51 can adopt any known technology to be connected with shell 52.End, shell 52 rear end is the connecting portion carrying out with the first connector 61 of liner system 6 being mechanically connected.In actual applications, shell 52 and vibration head 51 all adopt steel part, therefore can adopt be threaded (and waterproof sealing can be carried out by seal washer), so that assembly and disassembly, certainly, if technique allows, the two can be fabricated to a global facility, improve its mechanical strength, sealing effectiveness, and reduce number of components; Correspondingly, can be that the connecting portion be connected with the first connector 61 adopts any known technology to realize by shell 52 rear end, as adopt screw thread, card falcon or other can realize the syndeton (and waterproof sealing can be carried out by seal washer) that is tightly connected, or even be adapted to carry out welded structure, bonding structure etc.

Inner at shell 52, vibrational system 1 is " choosing " type structure of single load-bearing bearing, it adopts one group of load-bearing bearing to be supported on the vibration gyroaxis that its both sides are fixed with eccentric part respectively---and namely one group of load-bearing bearing " is chosen " and is played a pair eccentric part, and the centrifugal force produced passes to the shell 52 of barred body 5.Due to the restriction of existing bearing mnanufacture technology, and it is large to vibrate the exciting force produced, the undercapacity of single load-bearing bearing, adopt multiple load-bearing bearing to combine formation bearing assembly during actual use to realize, what adopt in the embodiment of the application is that the load-bearing bearing group (i.e. the second bearing 14) that 3 load-bearing bearings are formed realizes, certainly, can also as required, the load-bearing bearing of other quantity be adopted to realize.In the embodiment that Fig. 1 provides, the concrete structure of vibrational system 1 is, the second bearing 14 that the vibration gyroaxis 13 be mechanically connected with rotating shaft 23 is made up of three load-bearing bearings supports, and the second bearing 14 is fixed on shell 52 inwall, and rotating shaft 23, vibration gyroaxis 13 rotation are point-blank; The vibration gyroaxis 13 in the outside (near side, barred body 5 front end) of the second bearing 14 is fixedly connected with the first eccentric block 11 by eccentric block fastening bolt 12, the vibration gyroaxis 13 of the inner side (near electric motor system 2 side) of the second bearing 14 is fixedly connected with the second eccentric block 15 by eccentric block fastening bolt 12, two eccentric blocks 11,15 are positioned at the same side of vibration gyroaxis 13 rotation, and the barycenter line of the two preferably can be made to be in same plane with vibration gyroaxis 13 rotation; Further, the centrifugal force produced when described two eccentric blocks 11,15 rotate is identical or close relative to the moment of the second bearing 14.Further, the rotor centroid of described electric motor system 2 departs from the rotation of rotating shaft 23, form eccentric rotor (preferably, rotor centroid and eccentric block barycenter are positioned at rotation homonymy, and be preferably positioned at the plane that eccentric block barycenter determines with vibration gyroaxis 13 rotation), described eccentric rotor forms an eccentric part, electric motor system 2 and vibrational system 1 are effectively integrated, produce centrifugal force when rotated, to strengthen the exciting force that vibrational system 1 produces, can reduce even to cancel the second eccentric block 15, thus reduce parts and taking excellent intracorporeal space, the Appropriate application to the useful space in barred body 5 is realized under the prerequisite not reducing exciting force, or need according to design and barred body 5 length can be made to be reduced, meet different application demands, the related art scheme of its specific implementation describes in detail later separately.In order to increase eccentric mass, can also when proof strength by vibration gyroaxis 13 be also the eccentric part with eccentric structure, such as adopt and vibration gyroaxis 13 is partly or entirely made semi-cylindrical, what adopt in Fig. 1 is that the vibration gyroaxis 13 in the outside of the second bearing 14 is made semi-cylindrical.Although vibrational system 1 adopts above-mentioned " choosing " type structure in the embodiment that Fig. 1 provides, in fact, it can also be that other that provide hereinafter " choose " type structure, can also adopt traditional " lifting " type structure (principle as shown in Figure 6).Certainly described vibrational system 1 can also adopt other exciting modes existing to realize.

Electric motor system 2 adopts brush motor, and it is made up of stator 22, rotating shaft 23 and the rotor 21, rectification sub-member 32, brush assembly of electric 3 etc. be fixed in rotating shaft 23.Described rotor 21 is formed by rotor core and around the armature winding (rotor windings) on rotor core, in order to reduce eddy current, rotor core is made up of the silicon steel plate stacking that multi-disc is insulated from each other, iron core there is the slot for winding put for armature winding, each commutator segment of described rectification sub-member 32 is electrically connected with each armature winding respectively, to be powered to armature winding by rectification sub-member 32.Namely second this bearing of bearing 14(that described rotating shaft 23 is arranged on described barred body 5 front end is the spring bearing of electric motor system 2 rotating shaft 23, it is again the spring bearing that vibrational system 1 vibrates gyroaxis 13, the two unification, simplified structure, reduce taking the barred body confined space), the clutch shaft bearing 25 of rear end supported, rectification sub-member 32 in described rotating shaft 23 and brush assembly of electric 3, be arranged in the space of (barred body 5 end side) outside clutch shaft bearing 25, namely clutch shaft bearing 25 is between rotor 21 and rectification sub-member 32, brush assembly of electric 3.In Fig. 1, rectification sub-member 32 is positioned at rotating shaft 23 rear end, and relevant position correspondence arranges brush assembly of electric 3, and brush assembly of electric 3 is fixed on the inwall of shell 52.Brush assembly of electric 3 comprises one by the support 31 of insulating properties, the brush carrier 33 be fixed on support 31, the brush 34 be placed in brush carrier 33.Support 31 is for having the hard material making of certain just deformability, the thick printed circuit board (PCB) of general use, with fixing brush carrier 33, be connected as overall to be fixed with miscellaneous part (shell 52 as in the present invention) of brush assembly of electric 3 simultaneously, brush carrier 33 is splendid attire and keeps the mechanical guide groove of brush 34 position, general is also the path (also have and be connected directly between on brush 34 by service cable) that brush 34 is connected with external circuit, it ensures that brush 34 can move freely along the radial direction of rectification sub-member 32 within it, and less contact resistance can be kept with brush 34, therefore it is the support of brush 34, location and power supply part, service cable is connected on brush carrier 33, and brush 34 generally applies pressure by elastomeric elements such as springs, with rectification sub-member 32 sliding contact, realizes powering to rectification sub-member 32.Brush 34 generally uses carbon brush.Due to the outside general naked layer of brush assembly of electric 3, therefore guarantee the insulation of brush assembly of electric 3 and shell 52 and miscellaneous part, the position of installing brush assembly of electric 3 at shell 52 inwall arranges insulating barrier, generally can by laying insulating paper and soaking insulating varnish.

Pass through technique scheme, when without the need to increasing additional components, rectification sub-member 32, brush assembly of electric 3 are moved on to beyond rotor 21 working space, contribute to produce high-temperature gas that electric spark causes between brush 34 and rectification sub-member 32 and waste gas can be exported heat radiation, brush 34 wearing and tearing produce powder and also can be discharged (by the space heat elimination in the liner system 6 of connection barred body 5 or discharge, if be also convenient to dispel the heat accordingly or pump-down process as the brush motor of common brush motor or other types).Now brush 34, rectification sub-member 32 are isolated from rotor 21, stator 22 and are in different physical spaces by clutch shaft bearing 25; can not to burn bad rotor 21, stator 22 and insulating protective layer thereof because of the high temperature of brush 34, rectification sub-member 32 and electric spark, brush dust also can not affect the service behaviour of electric motor system.Effectively expanded the restriction of barred body 5 built-in motor system 2 installing space by this structure, brush assembly of electric 3 has enough broad space to install in clutch shaft bearing 25 outside, is also convenient to carry out effective insulation processing to this space.Also be convenient to by other spaces that are extraneous or that be communicated with for providing corresponding oxidation environment (oxygen and humidity) at working face formation oxide-film in brush 34 and rectification sub-member 32 course of work; Also for the use of follow-up air circulation system 4 is laid a good foundation; Shortened the spacing of the two bearings of two ends of rotor supporting revolving shaft 23 by this technological means, reduce the disturbance of inner rotating shaft 23, especially for have the motor of eccentric rotor, vibrating motor the performance of rotating shaft disturbance rejection aspect more remarkable.Installing, safeguard and changing in the process of brush 34, the process that the replacing can carrying out associate components in brush assembly of electric 3 quickly without the need to dismantling the parts such as bearing, rotating shaft 23 and rotor 21 is connected with relevant cables, provides operating efficiency.Effectively improve the service behaviour of brush motor and the convenience of installation and maintenance, ensure that the brush motor in concrete vibration stick can normally work for a long time, for the realization of its Specifications is laid a good foundation.

Be electrically connected with the armature winding on rotor 21 in order to ensure rectification sub-member 32, Fig. 3 provides the structural representation of clutch shaft bearing cover 24, it comprises the shaft hole 230 of centrally axis, rotating shaft 23 is through described shaft hole 230, clutch shaft bearing cover 24 is socketed in rotating shaft 23, overlap 24 outside wall parallel at clutch shaft bearing on central axis, offer wire casing 241, pass for the connecting line of rectification sub-member 32 with epitrochanterian armature winding, and avoid the damage of the clutch shaft bearing 25 pairs of connecting lines assembled, generally directly the enamelled wire forming armature winding is directly connected on rectification sub-member 32 through described wire casing 241, the quantity of described wire casing carries out matched design according to the design of motor, ordinary circumstance symmetric design 4 can meet the demands completely, clutch shaft bearing 25 is socketed in rotating shaft 23 outer wall.Achieve clutch shaft bearing 25 and the connection of rotating shaft 23 easily by described clutch shaft bearing cover 24, also ensure that rectification sub-member 32 is electrically connected with the reliable of armature winding.

Stator 22 is fixed on shell 52 inwall, and for brush DC motors, described stator 22 can adopt permanent magnet---permanently magnetic stator, or form by stator core and around the excitation winding (stator winding) on stator core---winding type stator.

The inwall that described permanently magnetic stator can adopt cylinder type or tile fragment type permanent magnet to be fixed on shell 52 in the mode such as bonding is formed, certainly, also can adopt and output stator slot at shell 52 inwall and fix permanent magnet, or by support etc., permanent magnet is fixed on shell 52 inwall.Described stator can be made up of polylith permanent magnet combination.

As the technical scheme of winding type stator, described stator core is directly made up of a part for steel casing 52, by at shell 52 internal placement slot for winding, and stator winding is formed stator around the home in described slot for winding, the advantage of this technical scheme is that stator 22 and shell 52 are an inseparable entirety, job stability is strong, not fragile, but is not easy to implement.As another technical scheme that described stator 22 realizes, described winding type stator is fixed on the inwall of shell 52 as an individual components.As a kind of implementation of this technical scheme, described stator core adopts the upper layout slot for winding at arc surface steel plate, by stator winding around the home in slot for winding.As its another kind of implementation, adopt and to meet at the internal diameter of external diameter and shell 52 and intermittently coordinate (in fact interference fit also can), internal diameter meets the steel pipe (may also be iron pipe) that stator design requires, mill out whole slot for windings required for a complete stator to put corresponding stator winding at outer wall of steel pipe (and/or inwall), form stator; The groove of through described steel pipe inside and outside wall is outputed between different slot for winding, but institute's groove is not through whole stator in the vertical, namely between adjacent slot for winding, leaving a small amount of steel pipe is not formed through stator various piece (electromagnet poles) magnetic pole connecting part by described groove, is that the stator of a motor forms an interconnective entirety; Usually can form stator steel pipe two ends or two ends and the centre steel pipe walls magnetic poles connecting portion that respectively stays one 2 ~ 8mm wide.The stator adopting this technical scheme to be formed can load in shell and to be fixed by overall time easily, although there is the existence of magnetic pole connecting part, but because it is very tiny, little to the flux loss of stator various piece (electromagnet poles), impact can not be formed to whole motor performance, and, owing to there is described magnetic pole connecting part, whole stator is a fixing entirety, in the vibrating spear course of work and in collision, all can not form stator structure and destroy, enhance stability and the reliability of the performance of whole vibrating spear, and the radial thickness of stator 22 can be reduced, thus reduce taking excellent intracorporeal space.Certainly, also the material without magnetic conductivity can be adopted to carry out the various piece (namely replacing the groove between stator various piece) of connecting stator, also stator can be made to form an entirety, from performance perspective, this is optimal design, but this obviously can increase technology difficulty and cost aspect, and it is not the improvement of respective motor performance is not remarkable, therefore preferred from cost angle.As the application of scale, the preferably direct stator core being made said structure by mould.Described stator winding and rotor windings can adopt shunt excitation formula, series excitation formula and compound-wound to be connected, if conditions permit also can adopt separated exciting, but adopt shunt excitation formula, series excitation formula as the preferred version of concrete vibration stick.

For there being brush alternating current motor, i.e. series excitation type alternating current motor, its stator 22 can adopt the winding type stator in above-mentioned brush DC motors, and, stator winding and rotor windings adopt cascaded structure (being similar to aforesaid series excitation formula), namely stator winding and rotor windings are by brush 34, rectification sub-member 32 forms series loop, stator winding and the current phase in rotor windings synchronously change, because the remanent magnetism of ordinary steel or iron is high, also eddy current can be formed, thus loss electric energy, although the stator structure of above-mentioned brush DC motors can realize the work of series excitation type alternating current motor, but energy transformation ratio is low, reduce the power of motor, therefore, stator core should adopt and be similar to rotor core, form with silicon steel plate stacking insulated from each other.Therefore adopt series excitation type AC electrical chance to increase process complexity and cost, simultaneously because stator core adopts the silicon steel sheet laminated, when equal-wattage, also can cause the increase of barred body 5 size.Therefore, as the present invention, preferably adopt brush DC motors.

In actual embody rule, in order to simplify parts and be convenient to installation and maintenance, simultaneously also for gaining in strength, the entirety that the rotating shaft 23 of motor and vibration gyroaxis 13 are made up of same rotating shaft.When electric motor system 2 works, the heat that rotor 21 and stator 22 part produce is dispelled the heat by outside clammy concrete by shell 52.On the Design of Rotation of electric motor system 2, can existing mature technology be adopted, the Design of Rotation of above-mentioned brush motor is met 11000-12000rpm, even higher.

Liner system 6 forms primarily of the end cap 64 of flexible pipe 63, the first connector 61 be tightly connected with the shell 52 of barred body 5 by flexible pipe 63, flexible pipe 63 latter end, described connected mode, according to different connection materials, adopts any known, connected mode of adapting with it.In the embodiment that Fig. 1 provides, the first connector 61 adopts thread seal to be connected with shell 52, in the use procedure of vibrating spear, workmen's hand hose line controls barred body insertion, proposition and the position in concrete and moves and state transformation, flexible pipe 63, when meeting certain bending flexibility, also must possess higher intensity.In order to ensure the reliability that flexible pipe 63 is connected with the first connector 61, first connector 61 has with the connecting portion of fastening hose 63 and is connected frictional force for increasing and strengthens the annular groove connecting sealing effectiveness, outside this connecting portion flexible pipe 63, be provided with hose retainer 62 pairs of flexible pipes 63 carries out fastening, strengthens bonding strength and sealing effectiveness.The pipeline type cavity be communicated with is formed in flexible pipe 63, first connector 61 inside, the cable of powering for electric motor system 2 (is simplification accompanying drawing, do not draw in FIG) penetrate from end cap 64 and be connected to electric motor system 2 by this pipeline type cavity and provide cheaply, cable also can be protected not damaged simultaneously; In addition, air is full of or other contain the gas of oxygen and steam (object is to increase the humidity of gas) in this pipeline type cavity, thus be formed with the oxidation environment forming oxide-film when being beneficial to described rectification sub-member, brush assembly of electric work, directly be communicated with the space residing for brush assembly of electric 3 with rectification sub-member 32, there is provided heat radiation, dust discharge passage for it and meet its oxide-film formed air ambient, said process can be realized by the mode of free convection.Thus more effectively guarantee electric motor system 2 close barred body 5 in normal, effectively work.Further, in this liner system 6, the control system (for simplifying accompanying drawing, not drawing in FIG) opened and closed for controlling electric motor system 2 can also be set.But described end cap 64 can be the seal member for seal tube 63, also can be to have waterproof to enter the parts that can ensure pipeline type cavity in air turnover liner system 6.

Certainly described liner system 6 also can not adopt the above-mentioned technical scheme with flexible pipe 63, and adopts hard straight tube, but liner system 6 length of this technical scheme can be subject to certain present, and uses and migration shows slightly constant.

In order to improve the operational environment of electric motor system 2 further, also comprise one and be arranged on air circulation system 4 in barred body 5 end and liner system 6, it comprises Forced Air Convection parts, convection current air channel, air circulation and stores cavity, and air filter module etc.; Described convection current air channel comprises the first air channel, the second air channel.Pipeline type cavity in described liner system 6 is communicated with the space at rectification sub-member 32, brush assembly of electric 3 place, to realize the space articulation at air circulation system 4 and rectification sub-member 32, brush assembly of electric 3 place.Pipeline type cavity in described liner system 6 forms air circulation and stores cavity.

In the embodiment that Fig. 1 provides, described air circulation system 4 comprises, what be arranged on barred body 5 end is fixed on rotating shaft 23 rear end end face for carrying out the return flow line 610 formed in the pipeline type cavity of the fan 42 of forced convertion, the ducting assembly 44 being arranged on fan 42 afterbody, liner system 6 inside and the second cavity 47, the 3rd cavity 49 that are separated out by filtration members 48 wherein to air, and forms the air motion in direction as shown by arrows in FIG. wherein; Described second cavity 47, the 3rd cavity 49 form air circulation and store cavity; Described fan 42 is as Forced Air Convection parts.Particularly:

Fan 42 is aerofoil fan, is fixed on rotating shaft 23 rear end end face by fan fastening bolt 422, and has rotating shaft 23 rotary actuation and form the air-flow blowing brush assembly of electric 3; Owing to being provided with rectification sub-member 32 in rotating shaft 23 rear end, for ease of insulation, preferably on the end face of rotating shaft 23 rear end, be provided with the insulation cushion 421 with insulating effect; For the ease of the air motion around brush assembly of electric 3, be convenient to heat radiation and dust emission, between fan 42, rectification sub-member 32, have a gap to form the first cavity 41; The exhaust passage 43 that gap outside fan 42 and between shell 52 is formed.In order to contribute to the motion of air-flow in exhaust passage 43, preferably, fan 42 adopts the structure of band guard ring 425.As Figure 1 and Figure 4, fan 42 comprises flabellum 424, be positioned at and fix in the middle part of fan 42 and the connector 423 driving flabellum 424 to rotate, to be arranged on the fan fastener hole 4220 for provided with fan fastening bolt 422 at connector 423 center, be positioned at the guard ring 425 of flabellum 424 end, by this structure, when fan 42 rotates, the air motion of fan 42 inside and outside (outside guard ring 425) can not influence each other, thus forms contrary air motion direction inside and outside fan 42.

Be close at fan 42 rear but do not affect fan 42 rotate ducting assembly 44, the circulation that ducting assembly 44 is air provides operation passage, and it adopts structure illustrated in fig. 5.Ducting assembly 44 is a funnel-like part, and the first cavity 41 is communicated with the 3rd cavity 49 by respectively, be communicated with the second cavity 47 by the first cavity 41.Shown in composition graphs 1, Fig. 5, it comprises the infundibulate back cavity 441 being positioned at front end, is arranged on the return duct 442 that bottom back cavity 441, through ducting assembly 44 is communicated with outside; Opening is located at ducting assembly 44 front side and the discharge 443 be communicated with the collecting pipe 444 being positioned at ducting assembly 44 rear end; Return duct 442, discharge 443 are crisscross arranged on ducting assembly 44, and the wall from different directions through ducting assembly 44 is not still communicated with each other, realize utilizing ducting assembly 44 to carry out dredging of different motion direction air-flow in a narrow space.The size of number according to throughput of return duct 442, discharge 443, the acquisition range required design of air-flow, shown in Fig. 5 is the 4 groups of return ducts 442, the discharge 443 that are crisscross arranged.Simultaneously, for the application scenarios that some are other, the aperture position of the shape of back cavity 441, discharge 443 suitably can be adjusted, as back cavity 441 is in ducting assembly 44 front end face center and through front end face center, and the opening of discharge 443 is also distributed in ducting assembly 44 front end face, namely the opening of discharge 443 and back cavity 441 are all on end face; Or the opening of discharge 443 is positioned at the side etc. of ducting assembly 44.In the embodiment that Fig. 1 provides, the back cavity 441 of ducting assembly 44 is just to the working face of fan 42 flabellum 424, and the exhaust passage 43 that the opening of discharge 443 is formed with the gap outside fan 42 and between shell 52 is through, ducting assembly 44 trailing flank is provided with barriers 45, it is prevent on rear side of the gas leakage of exhaust passage 43 to ducting assembly 44 on the one hand, is also that ducting assembly 44 is fixed on shell 52 inwall on the other hand; For the ease of realizing, can adopt and be cut in outside the opening inner side of discharge 443 (near ducting assembly 44 central side) lateral surface that guard ring 425(can be circumscribed guard ring 425, may also be medial surface, can also be the position between guard ring 425 superolateral surface and medial surface), can effectively avoid the air-flow on flabellum 424 all to derive from back cavity 441 like this, and the air-flow outside guard ring 425 can enter discharge 443.Collecting pipe 444 is connected with blast pipe 46, the filtration members 48 that blast pipe 444 passes the second cavity 47 and is arranged in liner system 6, enters the 3rd cavity 49; Certainly also can adopt and collecting pipe 444 and blast pipe 46 are made an entirety, namely collecting pipe 444 prolongation meets said structure requirement; But because blast pipe 46 generally can through a part for flexible pipe 63 in liner system 6, and flexible pipe 63 in the course of the work can because bending to the motion of barred body 5 and control, therefore, if liner system 6 has need bending flexible pipe 63, blast pipe 46 also preferably adopts flexible pipe.In blast pipe 46, ducting assembly 44 and liner system 6, form return flow line 610 between pipeline type cavity (cavity mainly in the first connector 61), return flow line 610 is communicated with return duct 442.Described filtration members 48 can adopt sponge, micropore cardboard etc. that dust can be stoped to pass through and have the material making of excellent air permeability, and the position of filtration members 48 can be arranged flexibly.3rd cavity 49 is obviously greater than the second cavity 47 under normal circumstances.If when certainly needing the length dimension shortening barred body 5 further, also ducting assembly 44 can be moved on in liner system 6.The air circulation convection current adopting above-mentioned ducting assembly 44 to have effectively achieved for relative complex in a limited space provides feasible air channel, and described air channel also can be applicable to the circulative convection that other field realizes all kinds of fluid.

During work, under the forced convertion effect of fan 42, containing dust in first cavity 41, waste gas is discharged to the discharge 443 of fan 42 rear end with the air carrying heat under the effect of fan 42 from the exhaust passage 43 outside fan 42, and the collecting pipe 444 in ducting assembly 44, the 3rd cavity 49 in liner system 6 delivered to by the blast pipe 46 be connected with collecting pipe 444, due to the effect of fan 42, pressure reduction is formed in filtration members 48 both sides, the cold air of the 3rd cavity 49 filters out after dust etc. through filtration members 48 and enters the second cavity 47, and through return flow line 610, return duct 442, back cavity 441 enters fan 42 and blows to brush assembly of electric 3, first cavity 41 at rectification sub-member 32 place.In this way, forcibly to carrying out forced convertion dedusting, heat radiation containing dust, high-temperature gas in first cavity 41 at brush assembly of electric 3, rectification sub-member 32 place, and introduce new accelerating oxidation film formed required there is corresponding humidity oxygen-containing gas (actual use in for having the air of certain humidity, make it the work being beneficial to electric motor system 2.

In this embodiment, the first air channel that the space (comprising the space of the first cavity 41) at described rectification sub-member 32, brush assembly of electric 3 place is communicated with the 3rd cavity 49 is made up of exhaust passage 43, discharge 443, collecting pipe 444, blast pipe 46.Through fan 42, the second air channel that described second cavity 47 is communicated with the space (comprising the space of the first cavity 41) at described rectification sub-member 32, brush assembly of electric 3 place is made up of return flow line 610, return duct 442, back cavity 441 etc.

Certainly, described air circulation system 4 is except being applied in embodiments of the invention, electric motor system or the generator system of other types can also be applied independently in, also directly or after slightly adjusting based on its thinking can be applied to other equipment or field, to carry out in the applied environment of air (or other gases, liquid) circulation, filtration.For other application beyond concrete vibration stick, the 3rd described cavity 49 can be completely with open, or without the need to filtration members 48, independent tubes also can be adopted to realize blast pipe 46, return flow line 610(respectively) dock with the space opening that space outerpace or other meet application demand.

Fig. 2 provides the partial structurtes of another embodiment of concrete vibration stick; Compared with the embodiment provided with Fig. 1, its difference is to improve Forced Air Convection parts, by air compressor machine 40 as Forced Air Convection parts, namely the fan 42 in embodiment is provided to be realized by air compressor machine 40 Fig. 1, air compressor machine 40 is fixed on shell 52 inwall, and the rectification sub-member 32 of getting along well in rotating shaft 23 contacts, outside air compressor machine 40, between shell 52 inwall, form exhaust passage 43.The air entry 402 of air compressor machine 40 is arranged in the back cavity 441 of ducting assembly 44, puff prot 401 is positioned at the first cavity 41, to brush assembly of electric 3, rectification sub-member 32 delivery air, the dust-laden hot gas of the first cavity 41 is forced to enter into discharge 443 through exhaust passage 43, formation air presses the flow direction circulation in figure shown in arrow, reaches forced circulation object.Air compressor machine 40 can with electric motor system 2 common source.Because the forced flow performance of air compressor machine 40 pairs of air is strong, can obtain than fan 42 better air circulation effect.

The technical scheme of the brush motor that Fig. 1-Fig. 5 provides and the brush motor that comprises air circulation system 4 can independent utility, and now shell 52 is equivalent to common motor shell; Also may be used on other operational environments needing motor and equipment.

The vibrational system operation principle of eccentric block " lifted " by two load-bearing bearings that the vibrational system that Fig. 6 provides existing concrete vibrating spear adopts, rotor 21 rotor 21 being arranged on the electric motor system 2 in barred body is supported between clutch shaft bearing 25 and the second load-bearing bearing 142 by rotating shaft 23, and ensures rotating shaft 23 flexible rotating under the effect of rotor 21; Vibration gyroaxis 13 two ends are supported by the first load-bearing bearing 141, second load-bearing bearing 142 respectively, vibration gyroaxis 13 between the first load-bearing bearing 141, second load-bearing bearing 142 is fixed with eccentric block 110, vibration gyroaxis 13 connection rotating shaft 23, barycenter A due to eccentric block 110 departs from the pivot center of vibration gyroaxis 13, vibrates gyroaxis 13 and eccentric block 110 High Rotation Speed generation centrifugal force f under the driving of rotating shaft 23 _a, and by the first load-bearing bearing 141, second load-bearing bearing 142, centrifugal force being passed to barred body, excitation barred body forms circular vibration, makes barred body externally provide exciting force.Due to the structure of this " lifting ", need at least two on the one hand (in fact, due to the restriction of existing bearing technology, first load-bearing bearing 141, second load-bearing bearing 142 combines by 2 load-bearing bearings the two groups of bearings formed respectively) be symmetricly set on the both sides of eccentric block, parts must be caused many, occupy space limited in barred body more or cause barred body to be extended, also increasing cost.The more important thing is, centrifugal force f in this structure _abe applied to the diverse location of the shell of barred body by the 142 liang of group bearing dispersions of the first load-bearing bearing 141, second load-bearing bearing, be unfavorable for forming the circular vibration in ideal model, weaken the exciting force that barred body produces; On the other hand, due to centrifugal force f _aby the directed force F that vibration gyroaxis 13 applies the first load-bearing bearing 141, second load-bearing bearing 142 _l1, F _l2be positioned at eccentric block 13 side, the distribution of force causing the first load-bearing bearing 141, second load-bearing bearing 142 is uneven, accelerates its concentrated wear, shortens the useful life of bearing.In this kind of vibrational system, some technical schemes also arrange the bearing of a support motor rotary shaft 23 in addition, generally in order to simplify this bearing of incomplete structure of barred body inner part, and are supported by the second load-bearing bearing 142 countershaft 23.In addition, for this kind of vibrational system provides the electric motor system of power to adopt traditional balancing motor, the barycenter of its rotor is positioned on the rotation of rotating shaft 23, its exciting force has merely eccentric block 110 to rotate the centrifugal force produced to be provided, its vibrational system is separated completely with providing the electric motor system of power for it, increases the volume of equipment and also can weaken the exciting force of barred body due to electric motor system balanced rotation inertia.

Based on the vibrational system that existing common balancing motor realizes, the Chinese patent application 200620136704.2(title that the applicant successively submits to: environmental protection general electric motor mass ratio vibrator), 201210570115.5(title: motor vibrator) disclose by the rotor of electric motor system being made eccentric rotor (rotor centroid departs from the rotation of rotor), directly utilize the rotation of electric motor system itself to form centrifugal force, and externally provide exciting force.And disclose corresponding technical scheme in the above application, as space is limited in this no longer repeated description, only carry out corresponding brief description in conjunction with following embodiment.

Fig. 7 provides the schematic diagram of vibrational system one embodiment used in the present invention, and Fig. 9 provides the structural representation realizing its principle; In this embodiment, the rotor 21 of electric motor system is an eccentric rotor, be positioned at the side of the second bearing 14, it comprises separation and the little Quality Mgmt Dept 211 of rotating shaft 23 both sides, large Quality Mgmt Dept 212, make the barycenter B of rotor 21 depart from the rotation of rotating shaft 23, form centrifugal force when rotor 21 rotates, thus form vibrating motor, thus the quality of rotor 21 is also effectively incorporated in vibrational system, effectively strengthen exciting force.The vibration gyroaxis 13 of the opposite side of the second bearing 14 is provided with the first eccentric block 11, vibration gyroaxis 13 is connected with rotating shaft 23, and there is identical rotation, the barycenter A of the first eccentric block 11, the barycenter B of rotor 21 and above-mentioned rotation are in same plane, and the centrifugal force f that when rotating, barycenter A, barycenter B are formed _a, f _bbe applied to the second bearing 14 both sides symmetrically, form the second bearing 14 couples of barred body 5 shell 52 applied pressure F _l, thus the exciting force that formation barred body 5 externally provides.Type vibrational system that this structure is still formed " choosing ", when in this, as the vibrational system of vibrating spear and electric motor system, compared with adopting the vibrating spear of traditional structure, when overall mass is identical, the present invention can provide larger exciting force.In other words, obtain identical exciting force, the technical scheme that the present embodiment is relative and traditional, required parts are less, overall mass also can be lighter.

Fig. 8 provides the schematic diagram of another embodiment of vibrational system used in the present invention, and Figure 10 provides the structural representation realizing its principle.In vibrational system, the centrifugal force formed due to rotor 21 may be not enough, therefore, needs to configure the second eccentric block 15 in rotor 21 side, to form stronger centrifugal force.In this embodiment, similar to the embodiment that Fig. 7, Fig. 9 provide, be placed in by first eccentric block 11 outside second bearing 14, the rotor 21 of the second eccentric block 15 and bias is placed in inside the second bearing 14, and its barycenter A, C, B and rotating shaft 23, the rotation vibrating gyroaxis 13 are positioned at same plane.It rotates the centrifugal force f formed _awith f _c, f _bbe applied to the pressure F the second bearing 14 being formed the second bearing 14 pairs of barred body 5 shells 52 symmetrically _l.Said structure is still " choosing " type vibrational system.

When specific design, the centrifugal force generally formed the second bearing 14 both sides is identical or close relative to the moment of the second bearing 14, meanwhile, can by the barycenter B of eccentric rotor near the second bearing 14, to reduce the impact of centrifugal force on clutch shaft bearing 25.

Adopt the vibrational system of said structure, the vibrational system of " choosing " type structure, centrifugal force is placed in the second bearing 14(load-bearing bearing respectively) both sides, its stability is strong, and mechanical strength is high.Vibrational system concentrates on the second bearing 14 pairs of shells 52 to barred body 5 shell 52 applied pressure and applies pressure F _l, effectively make use of the centrifugal force that vibrational system produces, form desirable circular vibration model ---barred body 5 end is do not shake a little by zero of exciting force, and exciting force is concentrated and is applied in the vibration head 51 of barred body front end, and vibrates as vibration free end, effectively strengthens the exciting force of barred body 5.When meeting same exciting force, it at least saves a load-bearing bearing relative to traditional " lifting " type, reduces quality and the volume of eccentric block, effectively can reduce its occupying barred body space, can realize the barred body of smaller szie.Meanwhile, useful life is also longer.The electric motor system of employing eccentric rotor also further reduces the parts in vibrating spear, reduces taking excellent intracorporeal space, thus can reduce the size of barred body as required.Needing again to illustrate, choose " vibrational system of type structure can be directly used in the second bearing 14 both sides and arrange that eccentric block realizes, and be not necessarily use the electric motor system with eccentric rotor, corresponding technique effect can be realized equally.

In order to realize above-mentioned eccentric rotor, can adopt and adopt the material of different densities to make the little Quality Mgmt Dept 211 of rotor, large Quality Mgmt Dept 212.Or adopt following scheme to realize: Figure 11 provides a kind of silicon steel structure schematic diagram realizing eccentric rotor iron core; Described silicon steel sheet has the slot for winding 2102 putting armature winding, in armature winding electric current effect under form the lug boss 2101 of magnetic pole, by getting multiple barycenter adjusting hole 2103 on the lug boss 2101 forming the little Quality Mgmt Dept of rotor 211, thus the silicon steel sheet realizing side in contrast forms large Quality Mgmt Dept 212.Certainly, also by filling the material of different densities to adjust the distribution of its barycenter in barycenter adjusting hole 2103, the little Quality Mgmt Dept 211 formed, large Quality Mgmt Dept 212 are not limited to the effect shown in figure.Figure 12 provides the rotor structure schematic diagram that another kind realizes eccentric rotor; In figure, being realized by the slot wedge of different densities, forming epitrochanterian little Quality Mgmt Dept 211 by assembling low-density slot wedge 2104 on the slot for winding of rotor, the slot for winding of rotor is assembling high density slot wedge 2105 form the large Quality Mgmt Dept 212 of rotor.Such as, described high density slot wedge 2105 adopts at least one such as tungsten, lead high density material to make; Described low-density slot wedge 2104 adopts the low density materials such as wood, bamboo, plastics or foamed plastic, low-density foamed metal or low-density alloy to make.

Figure 13 gives the structural representation of the internal part of liner system 6 end, as one application, in figure, jointly forms the end cap 64 in above-described embodiment with the second connector 641, thread guard 642.Flexible pipe 63 end connects the second connector 641 front end of hollow, and the second connector 641 rear end connects thread guard 642.The connected mode that described connected mode adopts flexible pipe 63 similar to the first connector 61, just the second connector 641 is stressed little, can without the need to hose retainer; Also can adopt and be threaded.Penetrate liner system 6 by thread guard 642 end and provide electric energy to electric motor system 2 connecting the feed cable 74 of external power source.And based on said structure, in liner system 6, configure corresponding power control system as required.Certainly, power control system also can be set directly in the pipeline type cavity of the liner system 6 of the embodiment that Fig. 1-3 provides, and the embodiment that Figure 13 provides is a kind of application special case.

Figure 14 provides a kind of theory diagram of embodiment of power control system; The feed cable 74 connecting external power source is connected a memory circuit, the control line 72 of memory circuit connects a transducer, the motor cable 73 of memory circuit connects electric motor system, the control signal can be able to sent here transducer due to memory circuit is remembered and keeps, and its working power can by obtaining from feed cable 74.Suppose that original operating states is power down state, a control impuls (simply can be interpreted as and be connected by two control lines 72) is sent once to memory circuit by transducer, feed cable 74 and motor cable 73 are connected and keep by memory circuit, power to electric motor system, electric motor system is started working; When closing electric motor system, send a control signal pulse by transducer to memory circuit, feed cable 74 and motor cable 73 disconnect and keep by memory circuit.Thus achieve by the control of transducer to motor operating state.With reference to Figure 13, Figure 14, be placed in by power-supply controller of electric 7 in second connector 641, motor cable 73 is connected on electric motor system by the pipeline type cavity in flexible pipe 63 and the first connector 61; Now transducer be equivalent to a control switch be fixed on flexible pipe 63 front end near with the connecting portion of the first connector 61 near the position of control switch 71 place (namely in Fig. 2), control line 72 passes through flexible pipe 63 and is connected with transducer.During use, hand-held barred body 5 end or flexible pipe 63 front end, trigger sensor before putting into concrete or when putting into, vibrating spear is started working, and barred body 5 is put into the corresponding position of concrete and constructed by release hose 63; Pack up flexible pipe 63 and pull out barred body 5, when barred body 5 leaves concrete or after leaving, trigger sensor, vibrating spear quits work.Above-mentioned work one people can operate, and convenient and reliable, has hommization, the use of convenient construction personnel.

Described transducer can be one of known any vibrating sensor, magnetoresistive sensor, photoelectric sensor, and certain touch sensor also can realize, but due to the particularity of construction site, does not generally adopt.Figure 16 provides a kind of structure principle chart of vibrating sensor, described vibrating sensor 711 comprises insulation crust 7111, be arranged on touch control electrode 7114 wherein, elastomeric element 7113 one end of conduction connects pendulum 7112, the other end is fixed on insulation crust 7111 inwall, make described pendulum 7112 can touch touch control electrode 7114 when vibrating, elastomeric element 7113, touch control electrode 7114 are connected with control line 72 respectively.Described vibrating sensor is fixed on the position at control switch 71 place shown in Fig. 2, by knocking the flexible pipe 63 pipe outer wall of correspondence position, pendulum 7112 is touched touch control electrode 7114 and is resetted under the elastic force of elastomeric element 7113 immediately, control impuls can be sent to memory circuit, realize the switch control rule to electric motor system.Certainly, if pendulum 7112 magnetic material or ferrimagnet are made, can as a kind of magnetoresistive sensor.

Simple and easy and the reliable magnetoresistive sensor as another kind, adopt a magnetron, the two poles of the earth of magnetron are connected with control line 72, magnetron is under the magnet effect of flexible pipe 63 outside, its the two poles of the earth are in the operating state of conducting, when magnet is removed, its two poles of the earth are in the operating state of disconnection, thus realize controlling.Magnetron is fixed on the position at control switch 71 place shown in Fig. 2, during work, holds a magnet and slip over or near flexible pipe 63 outer wall residing for magnetron, can transmit control signal to memory circuit, realize the switch control rule to electric motor system.

Described photoelectric sensor can adopt and be similar to pendulum in Figure 16 to block optocoupler or photodiode realizes.

Figure 15 provides the embodiment theory diagram of another kind of power control system; Being connected with electric motor system by a push type memory switch receives on feed cable 74, and push type memory switch can be mechanical switch, can be also electronic memory switch, be characterized in, when pressing switch, the state of its work remains unchanged.Suppose that push type memory switch reset condition is off, when pressing push type memory switch button 7125 once, it is in conducting state, and keeps; Again press push type memory switch button 7125 once, be then in off-state, and keep.Push type memory switch directly can be fixed on the position at control switch 71 place shown in Fig. 2, and by button 7125 towards flexible pipe 63 wall, an aperture can be opened for control button 7125 on flexible pipe 63, and carry out waterproof sealing process.Because construction environment humidity is high, this mode poor stability, certainly, if control switch other switches such as () key switch, knife switch, soft-touch controls to be arranged on beyond flexible pipe 63 end or liner system 6 also can, but inconvenient operation in work progress can be caused like this.Preferably, be improved to based on described push type memory switch the switch knocking shake control, Figure 17 provides its technical scheme improved.Push type memory switch 7124 is set in housing 7121, one vibration hammer 7122 be connected with reply parts 7123 is set above button 7125, and a position-limit mechanism is set, guarantee that vibration hammer 7122 can only swing up and down, the control switch of described improvement is fixed on the position at control switch 71 place shown in Fig. 2, by knocking the flexible pipe 63 pipe outer wall of correspondence position, vibration hammer 7122 can knock button 7125, and reset under the effect of replying parts 7123, realize controlling push type memory switch by vibration mode.Certainly, the described switch knocking shake control can also be, a spacing travel mechanism is set above button 7125, vibration hammer 7122 is placed in spacing travel mechanism, enables freely move up and down along spacing travel mechanism and can oppress button 7125, when knocking, due to inertia, vibration hammer 7122 knocks button 7125, and naturally resets, and realizes controlling push type memory switch by vibration mode.

In addition, above-mentioned power control system can also adopt other known control modes to realize, as the voice activated control etc. of remote-control switching system, characteristic frequency.

In the above-described embodiments, if employing brush DC motors, and the external power used is alternating current, only need connect a bridge rectifier in motor cable 73 or feed cable 74 can power to DC motor, if now external power is that direct current also can ensure DC motor work.Liner system 6 put into by this bridge rectifier, preferably puts into the second connector 641.

Certainly, the present invention also can have other various embodiments, and when without the need to any creative work, related art scheme in the different embodiments of above-mentioned different embodiment or each part can also be carried out being used alone or reconfiguring, to obtain the technical scheme of other embodiments.

Above the embodiment of the present invention is described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the related art scheme of the brush motor provided in technique scheme can independently use, and can be applied to and brush hair motor, now, described commutator is the collector ring (or electric brush slip ring) on generator, and other part-structures can be identical or part is identical, as space is limited, no longer superfluously to state at this.The explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (9)

1. a brush motor, the rotor comprising stator, rotating shaft and be fixed in rotating shaft, described rotating shaft support by bearing, described rotating shaft is provided with rectification sub-member, and the brush assembly of electric of correspondence, it is characterized in that, described motor rear end supports the clutch shaft bearing of described rotating shaft between rotor and rectification sub-member, described rotor and rectification sub-member, brush assembly of electric are divided and be interposed between in two different spaces, to make described rectification sub-member, brush assembly of electric is in space outside described clutch shaft bearing; And comprise an air circulation system, the space articulation at described air circulation system and described rectification sub-member, brush assembly of electric place; Described air circulation system comprises Forced Air Convection parts, convection current air channel, the air circulation being full of air and storage cavity; Described air circulation system comprises a filtration members further, and described filtration members is arranged on described air circulation and stores in cavity, and described air circulation and storage cavity are separated into the second cavity, the 3rd cavity; Described convection current air channel comprises the first air channel be communicated with the 3rd cavity in the space at described rectification sub-member, brush assembly of electric place; Through the second air channel that described second cavity is communicated with the space at described rectification sub-member, brush assembly of electric place by described Forced Air Convection parts.

2. motor as claimed in claim 1, is characterized in that, the space at described rectification sub-member, brush assembly of electric place and a cavity connects, forms the oxidation environment forming oxide-film when being beneficial to described rectification sub-member, brush assembly of electric work in described cavity.

3. a concrete vibration stick, comprise barred body, vibrational system is provided with in barred body, for described vibrational system provides the electric motor system of power, the liner system be connected with described barred body, it is characterized in that, described electric motor system comprises stator, rotating shaft and the rotor be fixed in rotating shaft, described rotating shaft support by bearing, described rotating shaft is provided with rectification sub-member, and the brush assembly of electric of correspondence, described motor rear end supports the clutch shaft bearing of described rotating shaft between rotor and rectification sub-member, by described rotor and rectification sub-member, brush assembly of electric divides and is interposed between in two different spaces, to make described rectification sub-member, brush assembly of electric is in the space outside described clutch shaft bearing, pipeline type cavity is had in described liner system, space outside the described clutch shaft bearing at described rectification sub-member, brush assembly of electric place and the pipeline type cavity connects in described liner system, and comprising a filtration members, ducting assembly and Forced Air Convection parts, described Forced Air Convection parts are between the space and described ducting assembly at described rectification sub-member, brush assembly of electric place, described filtration members is arranged in described pipeline type cavity, and described pipeline type cavity is separated into the second cavity being positioned at liner system front end, the 3rd cavity being positioned at liner system rear end, described ducting assembly comprises the infundibulate back cavity being positioned at front end, is arranged on the return duct that bottom back cavity, through ducting assembly is communicated with outside it, opening is located at ducting assembly front side and the discharge be communicated with the collecting pipe being positioned at ducting assembly rear end, return duct, discharge are crisscross arranged on ducting assembly, and the wall from different directions through ducting assembly is not still communicated with each other, described collecting pipe is connected with blast pipe, and described blast pipe is communicated with described 3rd cavity through described filtration members, described blast pipe, ducting assembly form return flow line in the pipeline type cavity of liner system, described Forced Air Convection parts are arranged on the end in barred body, and the interval between described gas forced convertion parts and barred body shell forms exhaust passage, the space at described rectification sub-member, brush assembly of electric place is communicated with the 3rd cavity by described exhaust passage, discharge, collecting pipe, blast pipe, the space of described second cavity with described rectification sub-member, brush assembly of electric place is communicated with through Forced Air Convection parts by return flow line, return duct, back cavity, under the effect of described Forced Air Convection parts described rectification sub-member, brush assembly of electric place space in dust-laden hot gas through described 3rd cavity, second cavity heat radiation, through described filtration members dust removal by filtration, again enter the space at described rectification sub-member, brush assembly of electric place.

4. vibrating spear as claimed in claim 3, it is characterized in that, the vibration gyroaxis of described vibrational system is connected with the rotating shaft of described motor, and described vibration gyroaxis runs through the second bearing and by described second bearings, is furnished with eccentric part respectively in described second bearing both sides.

5. vibrating spear as claimed in claim 4, it is characterized in that, the eccentric part outside described second bearing is be arranged on the eccentric block on described vibration gyroaxis; The barycenter of described motor rotor departs from the rotation of described rotating shaft, forms the eccentric part be positioned at inside described second bearing.

6. vibrating spear as claimed in claim 5, is characterized in that, the described vibration gyroaxis inside described second bearing arranges an eccentric block; The barycenter of described two eccentric blocks and the barycenter of described motor rotor are positioned at the homonymy of rotation.

7. the vibrating spear according to any one of claim 3-6, is characterized in that, comprise one further and be arranged on power control system in liner system interior conduit type cavity, described power control system is connected with feed cable, and powers for described electric motor system; Described power control system comprises a control switch or transducer, and described control switch or transducer are fixed in the pipeline type cavity near liner system front end and described barred body connecting portion.

8. vibrating spear as claimed in claim 7, it is characterized in that, described power control system comprises memory circuit, transducer, and described transducer is magnetoresistive sensor; Described memory circuit is connected with feed cable, and described memory circuit is connected with described magnetoresistive sensor by control line, and described memory circuit is connected with described electric motor system by motor cable; The operating state of described magnetoresistive sensor is slipped over by the magnetic element being positioned at liner system outside and controls.

9. improve a method for brush motor service behaviour, in order to improve the service behaviour of brush motor in closed environment, it is characterized in that, the rectification sub-member of described motor, brush assembly of electric are moved on to outside the space residing for rotor; By the space articulation at an air circulation system and described rectification sub-member, brush assembly of electric place; Described air circulation system comprises Forced Air Convection parts, convection current air channel, the air circulation being full of air and storage cavity; Described air circulation system comprises a filtration members further, and described filtration members is arranged on described air circulation and stores in cavity, and described air circulation and storage cavity are separated into the second cavity, the 3rd cavity; Described convection current air channel comprises the first air channel be communicated with the 3rd cavity in the space at described rectification sub-member, brush assembly of electric place; Through the second air channel that described second cavity is communicated with the space at described rectification sub-member, brush assembly of electric place by described Forced Air Convection parts.