CN110454443A - A kind of device of safety-type anti-automobile assembly welding Iine mechanical seal galvano-cautery - Google Patents
A kind of device of safety-type anti-automobile assembly welding Iine mechanical seal galvano-cautery Download PDFInfo
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- CN110454443A CN110454443A CN201910811242.1A CN201910811242A CN110454443A CN 110454443 A CN110454443 A CN 110454443A CN 201910811242 A CN201910811242 A CN 201910811242A CN 110454443 A CN110454443 A CN 110454443A
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- Prior art keywords
- shaft
- holder support
- brush holder
- bristle
- brush
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- 238000003466 welding Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 14
- 238000001514 detection method Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 229920001651 Cyanoacrylate Polymers 0.000 description 1
- 239000004830 Super Glue Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Brushes (AREA)
Abstract
The invention belongs to mechanical equipment maintenance technology fields, in particular to a kind of device of safety-type anti-automobile assembly welding Iine mechanical seal galvano-cautery, spring mechanism is provided between brush holder support and bristle, pass through the opposite contact slide between shaft and bristle, spring is set stretching vibration to occur actively to drive bristle not stop to change to the exposure level on shaft cylindrical surface, improve the degree that electrostatic in shaft is transferred, simultaneously by adjusting of the screw rod to brush holder support right end position, so as to adjust the exposure level between the bristle and shaft external cylindrical surface of brush holder support left end.
Description
Technical field
The invention belongs to mechanical equipment maintenance technology field, in particular to a kind of safety-type anti-automobile assembly welding Iine machinery is close
Seal the device of galvano-cautery.
Background technique
Shaft is the basic element of character of steam feed pump, and impeller, the stationary situation of feed pump ontology are equipped in shaft
Axially rotation impeller rotation offer driving force pushes water to lower rotary shaft, to realize the transmission of water.Therefore shaft and water supply
It pumps and certainly exists gap between the sound of ontology, high pressure water has leakage by the gap, this is just needed by machinery
It seals to solve leakage problem, mechanical seal uses very extensive, the quality direct relation of mechanical seal in electricity power enterprise
To the performance and used life of equipment, thus find out Reasons for mechanical seal and corrective measure be guarantee enterprise safety operation,
Improve the vital task of service life of equipment.Wherein, because of working environment electrification occurs for metal material used in mechanical seal
Reaction is learned, and a major reason for causing leakproofness to decline.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of safety-type anti-automobile assembly welding Iine mechanical seal galvano-cautery
Device, including along length direction be front and back to horizontally disposed shaft, further include brush, brush includes brush holder support, brush holder support
It is located at the position above shaft on shaft and is provided with several bristles, bristle is along length direction downwards against the outer of shaft
On cylindrical surface, spring and hair brush base are provided between bristle and brush holder support shaft, bristle is connected to brush along length direction top
The lower surface of hair seat, several springs are fixedly connected on the upper surface of hair brush base along length direction one end, and the other end is fixed to be connected
It is connected to the lower surface of brush holder support shaft.
As preferred: shaft side is fixedly installed fixing seat, and level just forward extends out on the vertical leading flank of fixing seat
There is cylindrical pivot, pivot front end is provided with limited block,
It is located at the horizontal circle column sets of holes that bristle right side opening is equipped with before and after shaft on brush holder support shaft, pivot is just horizontal
It is just inserted in sets of holes forward, while shaft abuts against forward the vertical trailing flank of limited block and abuts against fixation backward simultaneously
The vertical leading flank of seat, brush can be swung by fixed center axis of pivot in perpendicular,
It is fixedly installed supporting block on the right side of fixing seat, is offered in supporting block through the vertical of supporting block upper and lower surface
First threaded hole is connected through a screw thread cooperation in the first threaded hole and is inserted with screw rod, and the bottom end of screw rod extends downwardly supporting block
Lower surface is simultaneously resisted against on brush holder support shaft upper surface at position of keeping right straight down, by screw rod in vertical in the first threaded hole
Reciprocating screw is mobile, thus drive brush in perpendicular using pivot be fixed center axis occur to swing so as to adjust bristle and
Exposure level between the external cylindrical surface of shaft,
As preferred: it is equipped with elastomeric layer positioned at the positive front side of bristle region and/or positive rear side on brush holder support shaft,
Bristle lower end will be far from brush holder support compared to the lower surface of elastomeric layer, and the lower surface of elastomeric layer is compared to hair brush base
It lower surface will be always far from brush holder support；
As preferred: close front position is helicitic texture, level on the trailing flank of limited block on the external cylindrical surface of pivot
Just concave shape is based on helicitic texture at the second threaded hole forward, and pivot is threadedly coupled cooperation and is inserted in the second threaded hole, thus
Realize being detachably connected between pivot and limited block；
As preferred: supporting block is connected on the right side of fixing seat, and supporting block bottom is kept right and extended downwardly at position
Vertical connecting plate offers the through-hole through connecting plate or so plate face on connecting plate, the shaft current lead stretched out on brush to
The right side wears support by through-hole and upward by connecting plate.
Detailed description of the invention
Fig. 1 be the structural schematic diagram of the device of safety-type anti-automobile assembly welding Iine mechanical seal galvano-cautery of the invention (just
View), the arrow of circular arc line is shaft axial direction rotation direction,
Fig. 2 is the top view of attached drawing 1,
Fig. 3 is in the present invention, shaft, bristle, hair brush base, spring, elastomeric layer, the relative positional relationship between brush holder support
Schematic diagram (left view on the basis of attached drawing 1),
Fig. 4 be between shaft and bristle with respect to contact slide when enlarged structure schematic diagram,
Fig. 5 is the schematic view of the mounting position of the device of anti-mechanical seal galvano-cautery of the invention, as shown in figure 5, therein
Mechanical seal ring is fixedly installed on pump housing side wall, and is sheathed on shaft axle body, mechanical seal ring inner cavity and shaft cylindrical surface
Between play the role of fluid-tight filled with sealing water, therefore, if leakproofness between mechanical seal ring and shaft cylindrical surface due to
Galvano-cautery and if declining, will lead to the sealing water exudation in sealing ring inner cavity and pump intracorporal high-temperature water and penetrate into mechanical seal
In sealing water water body in ring inner cavity, high-temperature water will lead to the rising of sealing water water temperature after penetrating into, this point is in embodiment below
Part can further be discussed in detail,
The part that dotted-line ellipse circle is drawn in Fig. 5 is the position of brush upper bristle contact shaft,
Wherein, 1-shaft, 2-fixing seats, 21-pivots, 22-limited blocks, the 221-the second threaded hole, 3-brush holder supports,
31-bristles, 32-sets of holes, 33-shaft current leads, 34-elastomeric layers, 35-springs, 36-hair brush bases, 4-supports
Block, the 41-the first threaded hole, 42-connecting plates, 421-through-holes, 5-screw rods, 6-mechanical seal rings, the 7-pump housings.
Specific embodiment
It should be noted that word "front", "rear", "left", "right" used in description of the invention refer in attached drawing 1
Direction, "inner" and "outside" refer respectively to the direction towards or away from geometric center of specific component, these are merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
As shown in the picture, the device of safety-type anti-automobile assembly welding Iine mechanical seal galvano-cautery of the invention includes solid first
The fixing seat 2 of 1 side of shaft is set calmly, shaft 1 is front and back to horizontally disposed along length direction, fixing seat 2 it is vertical
The horizontal length direction that just forward extending out is sagittal cylindrical pivot 21 on leading flank, is provided on the front end of pivot 21
Limited block 22 close to front position is helicitic texture on the external cylindrical surface of pivot 21, just recessed forward on the rear end face of limited block 22
It falls into and forms the second horizontal threaded hole 221, be based on helicitic texture, pivot 21 is threadedly coupled cooperation and is inserted in the second threaded hole 221
In to realizing being detachably connected between pivot 21 and limited block 22,
Further include brush in device, brush includes brush holder support 3, by 1 visual angle of attached drawing, brush holder support 3 be length direction be left and right to
Horizontal strip rectangular parallelepiped structure is provided with vertical bristle 31, bristle 31 at the position of 3 left end of brush holder support on 3 bottom surface of brush holder support
Vertical spring 35 and horizontal hair brush base 36 are provided between 3 shaft of brush holder support, bristle 31 connects along length direction top
It is connected to the lower surface of hair brush base 36, several springs 35 are fixedly connected on the upper surface of hair brush base 36 along length direction one end,
The other end is fixedly connected on the bottom surface of 3 shaft of brush holder support,
Bristle 31 is along length direction downwards against the external cylindrical surface of (that section for stretching out shell on heat pump) shaft 1
On, it is fixed with elastomeric layer 34 respectively positioned at the positive front side of 31 region of bristle and positive rear side on 3 bottom surface of brush holder support, elasticity
Material layer 34 is that (elastic flame rubber layer can be adhered to the bottom of 3 left end of brush holder support to elastic flame rubber layer by super glue, make
After over time, brush holder support 3 can be disassembled, the residual rubber layer shovel at this be fallen, then adhere to new rubber), bullet
The lower surface of property material layer 34 will be always far from brush holder support 3 compared to the lower surface of hair brush base 36, and 31 lower end of each bristle phase again
Than in the lower surface of elastomeric layer 34, far from brush holder support 3, the bottom of elastomeric layer 34 is not contacted with the external cylindrical surface of shaft 1
(by the visual angle of attached drawing 1,3),
It is located at the horizontal circle column sets of holes that 31 area's right side opening of bristle is equipped with the vertical side before and after shaft on 3 shaft of brush holder support
32, pivot 21 is just horizontal to be just inserted in forward in sets of holes 32, and shaft is and same forward against the vertical trailing flank to limited block 22
Shi Xianghou passes through the installation of limited block 22 against the vertical leading flank to fixing seat 2, avoid brush holder support 3 and occur along pivot 21
The front and back of length direction slides, and brush holder support 3 can be in perpendicular that fixed center axis is swung with pivot 21,
It is fixedly connected with supporting block 4 on the right side of fixing seat 2, is offered in supporting block 4 through 4 upper and lower surface of supporting block
The first vertical threaded hole 41, cooperation is connected through a screw thread in the first threaded hole 41 and is inserted with screw rod 5, the bottom end of screw rod 5 to
The lower lower surface for stretching out supporting block 4 is simultaneously resisted against at position to the right on 3 shaft of brush holder support straight down, by screw rod 5 in first
Vertical reciprocating screw in threaded hole 41 is mobile, to drive brush holder support 3 in perpendicular with pivot 21 for fixed center axis hair
It is raw to swing so as to adjust the exposure level between bristle 31 and the external cylindrical surface of shaft 1,
Supporting block 4 is connected on the right side of fixing seat 2,4 bottom of supporting block keep right extend downwardly at position it is vertical
Connecting plate 42 offers the through-hole 421 through 42 or so plate face of connecting plate on connecting plate 42, stretched out on brush for ground connection
Shaft current lead 33 wears to the right support by through-hole 421 and upward by connecting plate 42, shaft 1, shaft current lead 33, brush
Bar 3, hair brush base 36, bristle 31, spring 35 are all made of conductive mental section, wherein hair brush base 36 using overall quality compared with
Light thin plate or hollow pedestal.
In the present solution, the effect of screw rod 5 mainly includes two aspects that first is that by the adjusting to 3 right end position of brush holder support, to adjust
It relative position between 1 external cylindrical surface of bristle 31 and shaft of whole 3 left end of brush holder support can be by after 31 active time of bristle has been grown
Cause bristle 31 to shorten in abrasion, 3 right end of brush holder support can be raised by being revolved on screw rod 5 at this time, reduce by 3 left end of brush holder support, from
And the exposure level between 1 external cylindrical surface of bristle 31 and shaft is increased, the electrostatic in shaft 1 can sufficiently be shifted by brush
Fall,
Second is, when removing entire brush holder support 3 from the device, first moves down screw rod 5 and pushes 3 right end of brush holder support, make brush holder support 3
Left end, which is upturned, is sufficiently far from shaft 1, then screws off limited block 22, and brush holder support 3 is pulled away forward from pivot 21.It operates in this way
It is very fast to allow for the speed ratio that shaft 1 axially rotates, pulls out brush holder support 3 if in the case where 3 left end of brush holder support is close to shaft 1
Under, once 3 left end of brush holder support is touched with 1 external cylindrical surface of shaft at this time, brush holder support 3 be likely to by 1 centrifugal force of shaft act on and
It is out of control to be ejected, personnel or equipment are got to, so first making brush holder support 3 far from shaft 1 as far as possible before dismantling brush holder support 3；
Bristle 31 is not connected on 3 shaft of brush holder support directly in this programme, but makes brush holder support by the installation for bristle 31
3 shafts connect the hair brush base 36 of lighter in weight by spring 35, and bristle 31 on hair brush base 36 again by extending downwardly.In this way, in electricity
During the electrostatic transfer in shaft 1 is fallen on the cylindrical surface that brush bristle 31 touches shaft 1, between shaft 1 and bristle 31
Reaction force caused by opposite contact slide is acted on the hair brush base 36 of lightweight by metal bristle 31, due to actual conditions
Under, that section of shaft 1 that shell is stretched out on heat pump is exposed in air, and the environment of on-site unavoidably will cause one in air
The sundries such as a little dust, fibers adhere at random to be accumulated on the cylinder axial plane of this section of shaft 1, year in year out will necessarily be in the section
The cylindrical face surface of shaft forms corresponding lug boss, therefore can be driven and be brushed by metal bristle 31 in the axial rotation of shaft 1
Hair 36 generating period of seat (far from the 1 section center of circle of shaft) be displaced by a small margin, hair brush base 36 is connected with spring 35 again, because
This displacement of this hair brush base 36 can further promote one small contraction of generation of spring 35 (to be equivalent to and assign 35 1, spring not
Big elastic potential energy), and spring 35 needs to discharge elastic potential energy by stretching vibration small size several times after shrinking,
This stretching vibration several times of spring 35 drives bristle 31 not stop paying out the exposure level on 1 cylindrical surface of shaft in turn and actively
It is raw to change, it is found by the applicant that: this bristle 31 is continuous to 1 exposure level of shaft (bristle 31 contacts always with 1 cylindrical surface of shaft)
The situation that ground back and forth changes by a small margin can promote the electrostatic in shaft 1 to be shifted by bristle 31 to a greater degree, extend
The service life of shaft 1 and whole device,
Such as the situation of attached drawing 4: when the axial rotation of shaft 1 makes the contact of bristle 31 slip over the lug boss in shaft 1, Ji Ketong
It crosses metal bristle 31 and the reaction force far from the 1 section center of circle of shaft is generated to lightweight hair brush base 36, hair brush base 36 occurs
Corresponding displacement, i.e., corresponding small contraction occurs for spring 35；Shaft 1 continues axial rotation, i.e. bristle 31 leaves lug boss and arrives
Up to (opposite) regular smooth place, at this point, spring 35 is carrying out stretching vibration repeatedly also actively to drive bristle 31
The exposure level on 1 cylindrical surface of shaft is not stopped to change,
If having lacked spring 35, but bristle 31 is directly fixed on brush holder support 3, on the one hand due to brush holder support 3
Quality is generally all bigger, and reaction force caused by the opposite contact slide between shaft 1 and bristle 31 passes through metal plug
Hair 31 can not almost make brush holder support 3 generate displacement (and bristle 31 can only be made to be further bent)；On the other hand, shaft 1 is axial turns
It moves after so that bristle 31 is left lug boss arrival (opposite) regular smooth place, bristle 31 can recover immediately original state, and there is no upper
The case where stating " not stopping to change to the exposure level on 1 cylindrical surface of shaft ",
In actual operation, " without spring 35 and hair brush base 36, bristle 31 is directly vertical from 3 lower surface of brush holder support for first use
Extend downwardly " traditional brush, stretch out on the steam feed pump operated normally to on-site 1 section of shaft of shell shift it is quiet
(radial diameter of shaft 1 is 15 centimetres, 3000 revs/min of 1 revolving speed of shaft, and the operation power of pump is 13000kW, place for electric treatment
During reason, 31 bottom end of bristle is in contact with 1 cylindrical surface of shaft always):
Brush starts to shift electrostatic originally, and detection observes that the sealing water water temperature in this equipment is 49.2 DEG C,
After continuous service 45 days (first stage), detection observes that the sealing water water temperature in this equipment is 50.3 DEG C,
Continuous service 45 days (second stage) again, detection observed that the sealing water water temperature in this equipment is 51.8 DEG C,
45 days (phase III) of operation is continued for, detection observes that the sealing water water temperature in this equipment is 53.7 DEG C,
Be calculated: the increasing extent of temperature Δ of sealing water in the first stage is 50.3-49.2=1.1 DEG C,
The increasing extent of temperature Δ of second stage is 51.8-50.3=1.5 DEG C
The increasing extent of temperature Δ of phase III is 53.7-51.8=1.9 DEG C
As it can be seen that not only sealing water entirety water temperature is improving with the operation of equipment, increasing extent of temperature Δ it is also increasing (from
1.1 DEG C to 1.5 DEG C, again to 1.9 DEG C), this is because during this period, the galvano-cautery degree that shaft 1 is subject to gradually deepening, i.e. attached drawing
The leakproofness at the place of drawing a circle is gradually reduced in 5, and the intracorporal high-temperature water of chamber of pump is caused to penetrate into sealing water water body by galvano-cautery notch
Flow be correspondingly gradually increased；
At this point, the brush quickly changed with spring 35 and lightweight hair brush base 36 in the present embodiment replaces above-mentioned traditional brush
It is (initial with above-mentioned traditional brush bristle 31 and 1 cylindrical surface of shaft in the initial contact degree on bristle 31 and 1 cylindrical surface of shaft
Exposure level is consistent), transfer electrostatic treatment, operating condition and fortune are carried out to the same section of shaft 1 same on same steam feed pump
Row parameter remains unchanged (31 bottom end of bristle is in contact with 1 cylindrical surface of shaft always):
Brush starts to shift electrostatic originally, and detection observes that the sealing water water temperature in this equipment is 53.7 DEG C,
After continuous service 45 days (first stage), detection observes that the sealing water water temperature in this equipment is 55.6 DEG C,
Continuous service 45 days (second stage) again, detection observed that the sealing water water temperature in this equipment is 57.4 DEG C,
45 days (phase III) of operation is continued for, detection observes that the sealing water water temperature in this equipment is 59.4 DEG C,
Be calculated: the increasing extent of temperature Δ of sealing water in the first stage is 55.6-53.7=1.9 DEG C,
The increasing extent of temperature Δ of second stage is 57.4-55.6=1.8 DEG C
The increasing extent of temperature Δ of phase III is 59.4-57.4=2 DEG C
As it can be seen that after replacing with the brush of the present embodiment, under equipment is run as usual, although sealing water water temperature is also rising,
The increasing extent of temperature Δ in each stage has been held essentially constant, and is only slightly improved in the phase III, but traditional brush that is also far from
Under it is so obvious in each stage.This is because irreversibly having occurred one at 1 sealing of shaft when using traditional brush before
The decline of fixed galvano-cautery, leakproofness caused by the galvano-cautery can make to pump the sealing that intracorporal high-temperature water constantly penetrates into low temperature
Water causes the constant for being mixed into high-temperature water in sealing water water body to rise, and water temperature increases；But after changing the brush of the present embodiment,
Although sealing water entirety water temperature is rising, the ascensional range Δ in each stage has not changed substantially (is similarly to object
The concept of " speed " and " acceleration " in reason), this is absolutely proved, under the action of the brush of the present embodiment, at 1 sealing of shaft into
The degree that galvano-cautery occurs for one step has become very small, and leakproofness is not destroyed further substantially, so high-temperature water is also
It is to enter sealing water water body according to original flow, flow does not increase substantially,
As it can be seen that in contrast, the brush with spring 35 and hair brush base 36 in this programme is really in terms of antistatic corrosion
There is better effect compared to traditional brush.
In addition, when one is adjusted the exposure level between 1 external cylindrical surface of bristle 31 and shaft of 3 left end of brush holder support,
The position for needing to stand by screw rod 5 operates screw rod 5, be not readily observed in this way 3 left end bottom of brush holder support relative to turn
1 axial plane of axis position (inherently connect plus bristle 31 in 3 bottom of brush holder support, the blocking of brush holder support 3 cause to observe it is more difficult, one
When carrying out spiral lifting operation to the screw rod 5 above supporting block 4, in the observation visual angle substantially such as attached drawing 1 of 3 left end of brush holder support
The inclined arrow in lower section to the left), accidentally 3 left end of brush holder support can be put too low, the bottom at 3 left end of brush holder support is caused directly to be pressed
On 1 axial plane of shaft (bristle 31 is very thin, is not have respective support power), not only it is easy that 1 axial plane of shaft is caused to wear,
The smoothness for reducing by 1 axial plane of shaft, can also generate stronger rub to the bristle 31 between 1 axial plane of brush holder support 3 and shaft and press active force
Bristle 31 bent or break, such situation occur often after, will lead to 1 deformation of shaft, make under 1 intensity of shaft
Drop, reduces the operation stability and service life of equipment,
In this regard, the elastic flame rubber layer being arranged in this programme is flexible material, the presence of elastic flame rubber layer is avoided
Very stiff and demanding direct relative friction, mill between 1 axial plane of 3 bottom surface of said circumstances lower brush shaft and shaft (the two is irony profile)
Damage also slows down the curved pressure degree suffered between 1 axial plane of 3 bottom surface of brush holder support and shaft of said circumstances lower bristle 31, has operated
Shaft 1 is moved towards after screw rod 5 immediately and observes position of 3 left end of brush holder support relative to 1 axial plane of shaft, is such as the discovery that such case, it can be again
Improve 3 left end of brush holder support slightly 5 backspin of screw rod,
To sum up, the present apparatus destatics that high-efficient, at low cost, structure is simple, one can also operate,
In addition, from the point of view of attached drawing 1, if occurring to skid between screw rod 5 and the first threaded hole 41 moves up screw rod 5, brush holder support 3
Left end can also fall and lead to the unfavorable situation in the preceding paragraph, and from this point of view, the setting of elastic flame rubber layer is also to have
It is necessary.
Claims (6)
1. a kind of device of safety-type anti-automobile assembly welding Iine mechanical seal galvano-cautery, it is characterised in that: the device includes
Shaft (1) and brush, the shaft (1) are front and back to horizontally disposed along length direction；The brush includes brush holder support (3),
It is located at the position above the shaft (1) on brush holder support (3) shaft and is provided with several bristles (31), bristle (31) edge
Length direction downwards against on the external cylindrical surface of the shaft (1), the bristle (31) and the brush holder support (3) shaft it
Between be provided with spring (35) and hair brush base (36), the bristle (31) is connected to the hair brush base along length direction top
(36) lower surface, several springs (35) are fixedly connected on the upper of the hair brush base (36) along length direction one end
Surface, the other end are fixedly connected on the lower surface of the brush holder support (3) shaft.
2. the device of safety-type anti-automobile assembly welding Iine mechanical seal galvano-cautery as described in claim 1, it is characterised in that: institute
It further include the fixing seat (2) for being fixed at the shaft (1) side, the vertical front side of the fixing seat (2) in the device stated
It is horizontal on face just to forward extend out cylindrical pivot (21), limited block (22) are provided on the front end of the pivot (21),
It is located at the horizontal circle cylindrical sleeve that the bristle (31) right side opening is equipped with before and after the shaft on brush holder support (3) shaft
Hole (32), the pivot (21) is just horizontal to be just inserted in forward in the sets of holes (32), and the brush holder support (3) can put down vertically
It is swung in face with the pivot (21) for fixed center axis,
It is fixedly installed supporting block (4) on the right side of the fixing seat (2), offers on the supporting block (4) through the support
Vertical first threaded hole (41) of block (4) upper and lower surface is connected through a screw thread cooperation in first threaded hole (41) and plugs
Have screw rod (5), the bottom end of the screw rod (5) extends downwardly the lower surface of the supporting block (4) and is resisted against straight down described
It keeps right on brush holder support (3) shaft at position, is moved by the vertical reciprocating screw in the screw rod (5) the first threaded hole of Yu Suoshu (41)
It is dynamic, thus drive the brush holder support (3) in perpendicular with the pivot (21) be fixed center axis occur to swing so as to adjust
Exposure level between the bristle (31) and the external cylindrical surface of the shaft (1).
3. the device of safety-type anti-automobile assembly welding Iine mechanical seal galvano-cautery as described in claim 1, it is characterised in that: institute
It states and is equipped with elastomeric layer (34) positioned at the positive front side of the bristle (31) region and/or positive rear side on brush holder support (3) shaft,
Bristle (31) lower end will be far from the brush holder support (3) compared to the lower surface of the elastomeric layer (34), and the elasticity
It the lower surface of material layer (34) will be always far from the brush holder support (3) compared to the lower surface of the hair brush base (36).
4. the device of safety-type anti-automobile assembly welding Iine mechanical seal galvano-cautery as claimed in claim 2, it is characterised in that: institute
Stating on the external cylindrical surface of pivot (21) close to front position is helicitic texture, just recessed forward on the rear end face of the limited block (22)
It falls into and forms horizontal the second threaded hole (221), based on the helicitic texture, the pivot (21) is threadedly coupled cooperation and is inserted in
In second threaded hole (221), to realize being detachably connected between the pivot (21) and the limited block (22).
5. the device of safety-type anti-automobile assembly welding Iine mechanical seal galvano-cautery as claimed in claim 2, it is characterised in that: institute
It states supporting block (4) to be connected on the right side of the fixing seat (2), supporting block (4) bottom is kept right and extended downwardly at position
Have vertical connecting plate (42), the through-hole through the connecting plate (42) left and right plate face is offered on the connecting plate (42)
(421), the shaft current lead (33) stretched out on the brush is worn to the right by the through-hole (421) and by the connecting plate
(42) upward support.
6. the device of safety-type anti-automobile assembly welding Iine mechanical seal galvano-cautery as claimed in claim 2, it is characterised in that: institute
Shaft is stated forward against the vertical trailing flank to the limited block (22), and simultaneously backward against erecting to the fixing seat (2)
Straight leading flank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111266558A (en) * | 2020-02-17 | 2020-06-12 | 管冰倩 | Shakeout treatment method after valve casting molding |
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| JPH054488A (en) * | 1991-06-26 | 1993-01-14 | Mutoh Ind Ltd | Pressing mechanism for paper moving plotter paper |
| CN101147309A (en) * | 2004-06-18 | 2008-03-19 | 莫戈公司 | Electrical contact technology and methodology for the manufacture of large-diameter electrical slip rings |
| CN201113686Y (en) * | 2007-06-18 | 2008-09-10 | 祺骅股份有限公司 | Motor shaft grounding screw thread structure |
| KR20140101949A (en) * | 2013-02-13 | 2014-08-21 | 현대중공업 주식회사 | Shaft grounding apparatus of ship |
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| CN111266558A (en) * | 2020-02-17 | 2020-06-12 | 管冰倩 | Shakeout treatment method after valve casting molding |
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