CN116428364A - Spindle sealing mechanism for needling machine - Google Patents
Spindle sealing mechanism for needling machine Download PDFInfo
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- CN116428364A CN116428364A CN202310692242.0A CN202310692242A CN116428364A CN 116428364 A CN116428364 A CN 116428364A CN 202310692242 A CN202310692242 A CN 202310692242A CN 116428364 A CN116428364 A CN 116428364A
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- 238000007789 sealing Methods 0.000 title claims abstract description 93
- 230000007246 mechanism Effects 0.000 title claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 45
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 40
- 238000005192 partition Methods 0.000 claims abstract description 21
- 238000013016 damping Methods 0.000 claims description 14
- 238000010030 laminating Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 229920001875 Ebonite Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 238000003491 array Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000011835 investigation Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Architecture (AREA)
- Fluid Mechanics (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to the technical field of sealing equipment, in particular to a main shaft sealing mechanism for a needling machine, which comprises: the sealing assembly comprises an annular outer shell sleeved on the outer side of the main shaft body, and an annular boss is fixedly connected to the upper part of the inner wall of the annular outer shell; the cross section of the annular sealing piece is shaped like a Chinese character ''; the upper part of the annular pressing piece is slidably arranged in the inner cavity of the sliding groove and is driven to move by hydraulic oil; the annular cover plate compresses an annular sealing element positioned on the lower side of the annular partition plate from bottom to top; the beneficial effects are as follows: through the inner wall fixedly connected with annular boss at annular shell body, annular compressing tightly piece extrusion annular sealing piece makes the interior ring deformation of annular sealing piece and closely laminate with main shaft body surface to form good sealedly, but the oil feed pressure through monitoring the oiling mouth investigation this device's sealed effect in real time, and the oil pressure of controlling the hydraulic oil pocket inner chamber through external oil pump can quick adjustment resume annular sealing piece to the sealing of main shaft.
Description
Technical Field
The invention relates to the technical field of sealing equipment, in particular to a main shaft sealing mechanism for a needling machine.
Background
The main shaft of the needling machine is used for driving the needle beam, and the needle beam drives a needle bed (also called a needle plate) fixed with the needle beam to needle the nonwoven fiber web layer passing below the needle beam to form a nonwoven product.
In the prior art, a sealing element is arranged between a main shaft and a main shaft box of the needling machine, and the sealing element is tightly pressed by an annular plate so as to prevent lubricating liquid in the main shaft box from leaking when the rotating shaft moves.
However, at present, the main shaft frequently generates vibration during working, so that a fastener on the sealing element is loosened, the sealing effect between the sealing element and the main shaft is reduced during long-time working, and the inspection is difficult. Therefore, the invention provides a spindle sealing mechanism for a needling machine, which is used for solving the problems.
Disclosure of Invention
The invention aims to provide a spindle sealing mechanism for a needling machine, which aims to solve the problem that the spindle sealing element in the background art is difficult to check when loose.
In order to achieve the above purpose, the present invention provides the following technical solutions: a spindle seal mechanism for a needling machine, comprising:
the sealing assembly comprises an annular outer shell sleeved on the outer side of the main shaft body, an annular boss is fixedly connected to the upper part of the inner wall of the annular outer shell, a hydraulic oil cavity and a sliding groove are respectively formed in the annular boss, a damping small hole communicated with the hydraulic oil cavity is formed in the bottom of the sliding groove, and an oil injection nozzle communicated with the inner cavity of the hydraulic oil cavity is fixedly connected to the outer side of the annular outer shell;
the annular partition plate is positioned in the middle of the inner cavity of the annular outer shell, annular sealing elements are arranged on the upper side and the lower side of the annular partition plate in a laminating mode, the two annular sealing elements are symmetrically distributed, and the cross section of each annular sealing element is shaped like ;
the annular pressing piece is arranged above the annular partition plate and is positioned between the annular sealing piece and the annular boss, the cross section of the annular pressing piece is trapezoidal and is pressed into the annular sealing piece positioned on the upper side of the annular partition plate from top to bottom, and the upper part of the annular pressing piece is slidably arranged in the inner cavity of the sliding groove and is driven to move by hydraulic oil;
the annular cover plate is fixed on the lower end face of the annular outer shell, and the annular cover plate compresses tightly an annular sealing piece positioned on the lower side of the annular partition plate from bottom to top.
Preferably, the damping small holes are arranged in a plurality and distributed in an annular array at the bottom of the sliding groove, two concentric extending flanges are arranged at the opening of the lower end of the sliding groove and fixedly connected with the lower surface of the annular boss, the upper end of the annular boss is fixedly connected with a plug ring, and the plug ring extends to the upper part of the annular outer shell.
Preferably, the upper surface fixedly connected with annular seat of annular clamp, the upper surface fixedly connected with of annular seat has two concentric deformation rings that set up, and two the cross-section of deformation ring personally submits symmetrical slope setting, deformation ring slidable mounting is in the slip recess inner chamber and laminating with the inside wall of slip recess, deformation ring is made by the hard rubber material that can take place miniature elastic deformation.
Preferably, the cross section setting of annular baffle is "T" font that the level was placed, and the lateral wall of annular baffle is laminated with the inside wall of annular shell body, annular caulking groove that is used for inlaying the sealing washer has been seted up to the lateral wall of annular baffle, a plurality of sunken grooves that are annular array and distribute have been seted up to the side that annular seal is close to annular baffle, the both sides inner wall of annular seal all inclines to set up, and the incline direction is opposite.
Preferably, the inner cavity of the sliding groove is provided with an oil retainer, the oil retainer is positioned between the two deformation rings, and the oil retainer covers the opening end of the damping small hole from bottom to top and is attached to the bottom of the sliding groove.
Preferably, the lower surface fixedly connected with reset spring of oil retainer, the spring constant head tank has been seted up to the upper surface of annular seat, reset spring's lower extreme fixed mounting is in the inner chamber of spring constant head tank, the breach groove has all been seted up at the inside and outside both sides edge of oil retainer, breach groove and reset spring all are provided with a plurality ofly and are annular array and distribute.
Preferably, the lower end fixedly connected with lower flange of annular shell body, through bolt fixed connection between annular apron and the lower flange, the upper surface fixedly connected with of annular apron has two concentric guide flanges that set up, two the slope setting that the one side that the guide flange kept away from each other is symmetrical is personally submitted, two the guide flange all from bottom to top impresss the inside that is located the annular seal of annular baffle below, and the side of guide flange compresses tightly the laminating with the inside wall of annular seal.
Preferably, the upper end of main shaft body is provided with the headstock, the upper portion of headstock is provided with the connecting seat that is used for installing the headstock, fixedly between headstock and the connecting seat be provided with the stiffening plate, the inner chamber of headstock is all inserted from bottom to top to the upper end of main shaft body and the upper end of grafting ring, the upper end fixedly connected with flange of annular shell body, pass through bolt fixed connection between upper flange and the headstock, and the junction is provided with annular pad.
Preferably, the lower extreme of main shaft body is provided with the supporting seat, and main shaft body and supporting seat movable through connection, the upper surface of supporting seat is provided with first holding ring, the top of first holding ring is provided with the second holding ring, the outside of main shaft body is located to first holding ring and the equal movable sleeve of second holding ring.
Preferably, the first positioning ring is fixedly connected with the supporting seat through a first bolt, the second positioning ring is fixedly connected with the first positioning ring through a second bolt, a space is reserved between the second positioning ring and the first positioning ring, and bearings are arranged on the inner sides of the first positioning ring and the second positioning ring.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the inner wall of the annular outer shell is fixedly connected with the annular boss, the inner part and the lower side of the annular boss are respectively provided with the hydraulic oil cavity and the sliding groove, the inner side and the lower side of the annular outer shell are respectively communicated, the outer side of the annular outer shell is provided with the oil injection nozzle for introducing hydraulic oil into the inner cavity of the hydraulic oil cavity, the lower side of the annular boss is provided with the annular pressing piece, the annular pressing piece is driven by the hydraulic oil in the inner cavity of the sliding groove to move downwards, the annular pressing piece extrudes the annular sealing piece to enable the inner ring of the annular sealing piece to deform and tightly adhere to the surface of the main shaft body so as to form good sealing, when the connecting bolt of the device loosens, the extrusion force between the annular sealing piece and the annular pressing piece changes, the oil pressure of the inner cavity of the hydraulic oil cavity can be changed along with the annular pressing piece, the sealing effect of the device can be checked in real time by monitoring the oil inlet pressure of the oil injection nozzle, and the sealing of the annular sealing piece to the main shaft can be quickly regulated and recovered through the oil pressure of the inner cavity of the outer oil pump.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is an exploded view of the seal assembly of the present invention;
FIG. 3 is a schematic view showing the connection of the main shaft body and the supporting seat structure;
FIG. 4 is a schematic view of the annular outer housing structure of the present invention in semi-section;
FIG. 5 is an enlarged schematic view of the structure A in the drawing of the present invention;
FIG. 6 is a schematic view of the interior of the annular outer housing structure of the present invention;
FIG. 7 is a schematic illustration of the annular barrier and annular seal arrangement of the present invention;
FIG. 8 is a schematic perspective view of the oil slinger of the present invention;
FIG. 9 is a schematic view of the inside of the annular compression member of the present invention;
FIG. 10 is a schematic view of the inside of the annular cover plate structure of the present invention.
In the figure: 1. a seal assembly; 2. a main shaft body; 3. an annular outer housing; 31. an annular boss; 32. a hydraulic oil chamber; 33. a sliding groove; 34. damping pinholes; 35. an extension flange; 36. a plug ring; 37. an oil filling nozzle; 38. an upper flange; 39. a lower flange; 4. an annular partition plate; 41. an annular caulking groove; 5. an annular seal; 51. a concave groove; 6. an annular pressing member; 61. an annular seat; 62. a deformation ring; 63. a spring positioning groove; 7. an annular cover plate; 71. a guide flange; 8. oil slinger; 81. a notch groove; 82. a return spring; 9. a support base; 91. a first positioning ring; 92. a second positioning ring; 93. a first bolt; 94. a second bolt; 10. a spindle box; 11. an annular pad; 12. a connecting seat; 13. and reinforcing plates.
Detailed Description
In order to make the objects, technical solutions, and advantages of the present invention more apparent, the embodiments of the present invention will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present invention, are intended to be illustrative only and not limiting of the embodiments of the present invention, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.
Referring to fig. 1 to 10, the present invention provides a technical solution:
in one embodiment, a spindle sealing mechanism for a needling machine includes: a sealing assembly 1, an annular partition 4, an annular compression member 6 and an annular cover plate 7.
Specifically, the seal assembly 1 comprises an annular outer shell 3 sleeved outside the main shaft body 2, a gap is reserved between the annular outer shell 3 and the main shaft body 2, an annular boss 31 is fixedly connected to the upper portion of the inner wall of the annular outer shell 3, a hydraulic oil cavity 32 and a sliding groove 33 are respectively formed in the inner side and the lower side of the annular boss 31, a damping small hole 34 communicated with the hydraulic oil cavity 32 is formed in the bottom of the sliding groove 33, the aperture of the damping small hole 34 is small, hydraulic oil in the inner cavity of the hydraulic oil cavity 32 can slowly enter the inner cavity of the sliding groove 33, an oil injection nozzle 37 communicated with the inner cavity of the hydraulic oil cavity 32 is fixedly connected to the outer side of the annular outer shell 3, the oil injection nozzle 37 is used for injecting hydraulic oil into the inner cavity of the hydraulic oil cavity 32, the oil pressure of the inner cavity of the hydraulic oil cavity 32 can be controlled by an oil pump connected with the oil injection nozzle 37, and a pressure gauge for detecting the oil pressure is further arranged outside the oil pressure gauge so as to be convenient for observation of workers;
secondly, the annular partition plate 4 is positioned in the middle of the inner cavity of the annular outer shell 3, annular sealing elements 5 are respectively arranged on the upper side and the lower side of the annular partition plate 4 in a laminating mode, the two annular sealing elements 5 are symmetrically distributed, the cross section of each annular sealing element 5 is shaped like a Chinese character '', each annular sealing element 5 is made of a hard rubber material, the annular sealing elements 5 can deform to a certain extent so as to change the inner diameter of each annular sealing element 5, and when the edges of the annular sealing elements 5 deform due to the fact that the inner parts of the annular sealing elements 5 are pressed, the annular sealing elements 5 can press and laminate the main shaft body 2, so that the sealing effect on the main shaft body 2 is improved;
further, the annular pressing piece 6 is arranged above the annular partition plate 4 and is positioned between the annular sealing piece 5 and the annular boss 31, the cross section of the annular pressing piece 6 is trapezoidal and is pressed into the annular sealing piece 5 positioned on the upper side of the annular partition plate 4 from top to bottom, the upper part of the annular pressing piece 6 is slidably arranged in the inner cavity of the sliding groove 33 and is driven to move by hydraulic oil, when the oil pressure of the inner cavity of the hydraulic oil cavity 32 is increased, the hydraulic oil can push the annular pressing piece 6 to move downwards in the inner cavity of the sliding groove 33, and at the moment, the annular pressing piece 6 is pressed into the inner groove of the annular sealing piece 5 positioned on the upper side of the annular partition plate 4, and the annular sealing piece 5 is extruded by the annular pressing piece 6 to deform, so that the annular pressing piece is tightly attached to the surface of the main shaft body 2;
secondly, annular apron 7 is fixed in the lower terminal surface of annular shell body 3, and annular apron 7 compresses tightly the annular sealing member 5 that is located annular baffle 4 downside from bottom to top, and annular apron 7's setting is used for avoiding annular sealing member 5 and annular baffle 4 to receive annular to compress tightly 6 to push down and take place to remove downwards, and then avoids annular sealing member 5 and annular baffle 4 to break away from annular shell body 3 inner chamber.
In the second embodiment, in order to increase the service life of the annular sealing member 5, the damping small holes 34 are arranged in a plurality of annular arrays and distributed at the bottom of the sliding groove 33, so that the oil pressure at each position of the inner cavity of the sliding groove 33 is stable and uniform, two concentric extending flanges 35 are arranged at the opening of the lower end of the sliding groove 33, the extending flanges 35 are fixedly connected with the lower surface of the annular boss 31, the extending flanges 35 are used for extending the slidable distance of the annular pressing member 6, when the annular sealing member 5 is worn for a long time, the annular pressing member 6 can continuously move downwards and continuously press the annular sealing member 5, the annular sealing member 5 is further deformed and attached to the surface of the spindle body 2, the service life of the annular sealing member 5 is prolonged, the upper end of the annular boss 31 is fixedly connected with a plugging ring 36, and the plugging ring 36 extends to the upper side of the annular outer casing 3.
In the third embodiment, based on the second embodiment, in order to drive the annular pressing member 6 to move down and slide, the present application further has an annular seat 61 fixedly connected with the upper surface of the annular pressing member 6, two concentrically arranged deformation rings 62 fixedly connected with the upper surface of the annular seat 61, and the cross sections of the two deformation rings 62 are symmetrically inclined, the deformation rings 62 are slidably mounted in the inner cavity of the sliding groove 33 and are attached to the inner wall of the sliding groove 33, the deformation rings 62 are made of hard rubber materials capable of undergoing micro elastic deformation, as shown in fig. 5, when hydraulic oil in the inner cavity of the hydraulic oil cavity 32 enters the inner cavity of the sliding groove 33 through the damping small holes 34, hydraulic oil is located between the two deformation rings 62, the deformation rings 62 can be tightly attached to the inner wall of the sliding groove 33 under the pressure of the hydraulic oil, at this time, the annular seat 61 is subjected to the pressure of the hydraulic oil and moves down, and then the annular pressing member 6 is driven to move down, and the hydraulic oil in the inner cavity of the sliding groove 33 is always kept tightly attached to the inner wall of the sliding groove 33 when the inner cavity of the sliding groove 33 slides.
On the basis of embodiment four, in order to avoid annular seal 5 to incline, the cross section setting of annular baffle 4 of this application is the "T" font that the level was placed, and annular baffle 4's lateral wall and annular shell 3's inside wall laminating, annular caulking groove 41 that is used for inlaying the sealing washer has been seted up to annular baffle 4's lateral wall, as shown in fig. 4 and 7, annular baffle 4 fills up between two annular seal 5, annular baffle 4's lateral wall and annular shell 3 inner wall laminating back, annular baffle 4 only can slide in the upper and lower direction, thereby can fix a position annular seal 5, avoid annular seal 5 surface to be pressed unbalance and lead to self to take place the slope, a plurality of recess 51 that are annular array distribution are seted up to annular seal 5 one side that is close to annular baffle 4, annular seal 5's both sides inner wall all inclines to set up, and the incline direction is opposite, setting up of recess 51 is used for increasing annular seal 5's deformation degree, thereby ensure that annular seal 5 can deform and reduce self internal diameter after compressing tightly 6 extrusion, thereby carry out closely laminating with main shaft body 2.
On the basis of the fifth embodiment, in order to avoid the annular pressing member 6 sliding upwards and being far away from the annular sealing member 5, the oil retainer 8 is arranged in the inner cavity of the sliding groove 33, the oil retainer 8 is located between the two deformation rings 62, the oil retainer 8 covers the opening end of the damping small hole 34 from bottom to top and is attached to the bottom of the sliding groove 33, as shown in fig. 5, hydraulic oil in the inner cavity of the hydraulic oil cavity 32 can push the oil retainer 8 to move downwards and smoothly enter the inner cavity of the sliding groove 33, and when the hydraulic oil in the inner cavity of the sliding groove 33 wants to flow upwards and enter the inner cavity of the hydraulic oil cavity 32, the oil retainer 8 can block the damping small hole 34, so that the reverse flow of the hydraulic oil is blocked, the annular pressing member 6 can be continuously subjected to the pressure of the hydraulic oil, and the situation that the annular pressing member 6 and the annular sealing member 5 are far away from each other and the sealing effect of the annular sealing member 5 on the main shaft body 2 is prevented from being poor is ensured.
Embodiment six, on the basis of embodiment five, in order to reset oil retainer 8, this application still has at oil retainer 8's lower fixed surface be connected with reset spring 82, spring constant head tank 63 has been seted up to annular seat 61's upper surface, reset spring 82's lower extreme fixed mounting is in spring constant head tank 63's inner chamber, notch groove 81 has all been seted up at oil retainer 8's inside and outside both sides edge, notch groove 81 and reset spring 82 all are provided with a plurality of and are annular array and distribute, reset spring 82's setting can reset oil retainer 8, ensure that oil retainer 8 remains throughout to the lower extreme opening cover of damping aperture 34, the setting of notch groove 81 ensures that leave the breach between oil retainer 8 edge and deformation ring 62, for hydraulic oil normally gets into sliding groove 33 inner chamber.
In order to avoid the separation of the annular partition plate 4 and the annular sealing member 5 from the inner cavity of the annular outer housing 3, the annular sealing member is further provided with a lower flange 39 fixedly connected to the lower end of the annular outer housing 3, the annular cover plate 7 is fixedly connected with the lower flange 39 through bolts, two concentrically arranged guide flanges 71 are fixedly connected to the upper surface of the annular cover plate 7, the sides of the two guide flanges 71, which are far away from each other, are symmetrically arranged in an inclined manner, the two guide flanges 71 are pressed into the annular sealing member 5 below the annular partition plate 4 from bottom to top, the side surfaces of the guide flanges 71 are tightly pressed and attached to the inner side wall of the annular sealing member 5, the guide flanges 71 act like the annular pressing member 6, the guide flanges 71 are used for pressing the annular sealing member 5 below the annular partition plate 4, but the annular cover plate 7 does not move, and the pressing force between the annular cover plate 7 and the annular sealing member 5 is realized by the downward movement of the annular pressing member 6.
The eighth embodiment is based on the seventh embodiment, the present application further has a headstock 10 disposed at an upper end of the main shaft body 2, a connecting seat 12 for mounting the headstock 10 is disposed at an upper portion of the headstock 10, a stiffening plate 13 is fixedly disposed between the headstock 10 and the connecting seat 12, an upper end of the main shaft body 2 and an upper end of the plugging ring 36 are both inserted into an inner cavity of the headstock 10 from bottom to top, the plugging ring 36 is directly contacted with the headstock 10, the main shaft body 2 is not directly contacted with the headstock 10, friction force applied to the main shaft body 2 during movement can be reduced, in addition, as shown in fig. 4, the structure inside the annular outer casing 3 only has the annular sealing member 5 directly contacted with a surface of the main shaft body 2, so that the main shaft body 2 can be prevented from colliding with an external hard object during vibration, and damage to the main shaft body 2 can be avoided, an upper end of the annular outer casing 3 is fixedly connected with an upper flange 38, the upper flange 38 is fixedly connected with the headstock 10 through bolts, and an annular pad 11 is disposed at a connecting position, the annular pad 11 is pressed by the upper flange 38 and the headstock 10, and the sealing performance between the upper flange 38 and the headstock 10 can be improved.
Embodiment nine, on the basis of embodiment eight, in order to lead to the lower extreme of main shaft body 2, this application still has and is provided with supporting seat 9 at the lower extreme of main shaft body 2, and main shaft body 2 and supporting seat 9 movable through connection, the upper surface of supporting seat 9 is provided with first holding ring 91, the top of first holding ring 91 is provided with second holding ring 92, the outside of main shaft body 2 is located to the equal movable sleeve of first holding ring 91 and second holding ring 92, through first bolt 93 fixed connection between first holding ring 91 and the supporting seat 9, leave the interval between second holding ring 92 and the first holding ring 91 through second bolt 94 fixed connection, first holding ring 91 and second holding ring 92 inboard all are provided with the bearing, as shown in fig. 3, supporting seat 9, first holding ring 91 and second holding ring 92 all are used for carrying out the location to main shaft body 2, avoid main shaft body 2 to take place the slope, and the position of second holding ring 92 can be adjusted through twisting second bolt 94, can also guarantee that main shaft body 2 is crooked in each other evenly between the main shaft body 2, avoid the atress body 2 to take place simultaneously.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a spindle seal mechanism for needling machine which characterized in that: comprising the following steps:
the sealing assembly (1), the sealing assembly (1) comprises an annular outer shell (3) sleeved on the outer side of the main shaft body (2), an annular boss (31) is fixedly connected to the upper portion of the inner wall of the annular outer shell (3), a hydraulic oil cavity (32) and a sliding groove (33) are respectively formed in the inner portion and the lower side of the annular boss (31), a damping small hole (34) communicated with the hydraulic oil cavity (32) is formed in the bottom of the sliding groove (33), and an oil injection nozzle (37) communicated with the inner cavity of the hydraulic oil cavity (32) is fixedly connected to the outer side of the annular outer shell (3);
the annular partition plate (4), the annular partition plate (4) is located in the middle of the inner cavity of the annular outer shell (3), annular sealing pieces (5) are arranged on the upper side and the lower side of the annular partition plate (4) in a fitting mode, the two annular sealing pieces (5) are symmetrically distributed, and the cross section of each annular sealing piece (5) is shaped like a Chinese character '';
the annular pressing piece (6) is arranged above the annular partition plate (4) and is positioned between the annular sealing piece (5) and the annular boss (31), the cross section of the annular pressing piece (6) is trapezoidal and is pressed into the annular sealing piece (5) positioned on the upper side of the annular partition plate (4) from top to bottom, and the upper part of the annular pressing piece (6) is slidably arranged in the inner cavity of the sliding groove (33) and is driven to move by hydraulic oil;
the annular cover plate (7), the lower terminal surface that annular cover plate (7) was fixed in annular shell body (3), annular cover plate (7) compresses tightly annular sealing member (5) that are located annular baffle (4) downside from bottom to top.
2. The spindle sealing mechanism for a needling machine as set forth in claim 1, wherein: the damping small holes (34) are formed in a plurality of grooves and distributed in an annular array at the bottoms of the sliding grooves (33), two concentric extending flanges (35) are arranged at the openings of the lower ends of the sliding grooves (33), the extending flanges (35) are fixedly connected with the lower surfaces of the annular bosses (31), the upper ends of the annular bosses (31) are fixedly connected with inserting rings (36), and the inserting rings (36) extend to the upper side of the annular outer shell (3).
3. A spindle sealing mechanism for a needling machine as set forth in claim 2 wherein: the upper surface fixedly connected with annular seat (61) of annular clamp (6), the upper surface fixedly connected with of annular seat (61) has two concentric deformation ring (62) that set up, and two deformation ring (62) transversal slope setting of personally submitting symmetry, deformation ring (62) slidable mounting is in the inside wall laminating of sliding groove (33) inner chamber and with sliding groove (33), deformation ring (62) are made by the hard rubber material that can take place miniature elastic deformation.
4. A spindle sealing mechanism for a needling machine as defined in claim 3, wherein: the cross section setting of annular baffle (4) is "T" font that the level was placed, and the lateral wall of annular baffle (4) is laminated with the inside wall of annular shell body (3), annular caulking groove (41) that are used for inlaying the sealing washer have been seted up to the lateral wall of annular baffle (4), a plurality of sunken grooves (51) that are annular array and distribute have been seted up to a side that annular seal (5) is close to annular baffle (4), the both sides inner wall of annular seal (5) all inclines to set up, and the incline direction is opposite.
5. The spindle sealing mechanism for a needling machine as set forth in claim 4, wherein: the inner cavity of the sliding groove (33) is provided with an oil retainer (8), the oil retainer (8) is positioned between the two deformation rings (62), and the oil retainer (8) covers the opening end of the damping small hole (34) from bottom to top and is attached to the bottom of the sliding groove (33).
6. The spindle sealing mechanism for a needling machine as set forth in claim 5, wherein: the oil retainer is characterized in that a reset spring (82) is fixedly connected to the lower surface of the oil retainer (8), a spring positioning groove (63) is formed in the upper surface of the annular seat (61), the lower end of the reset spring (82) is fixedly arranged in the inner cavity of the spring positioning groove (63), notch grooves (81) are formed in the edges of the inner side and the outer side of the oil retainer (8), and the notch grooves (81) and the reset spring (82) are all arranged in a plurality of annular arrays.
7. The spindle sealing mechanism for a needling machine as set forth in claim 6, wherein: the lower end fixedly connected with lower flange (39) of annular shell body (3), pass through bolt fixed connection between annular apron (7) and lower flange (39), the upper surface fixedly connected with of annular apron (7) two guide flange (71) that set up with one heart, two guide flange (71) are the slope setting of symmetry is personally submitted to the side that keeps away from each other, two guide flange (71) all from bottom to top impress the inside that is located annular sealing member (5) of annular baffle (4) below, and the side of guide flange (71) compresses tightly the laminating with the inside wall of annular sealing member (5).
8. The spindle sealing mechanism for a needling machine as set forth in claim 7, wherein: the novel spindle comprises a spindle body (2), and is characterized in that a spindle box (10) is arranged at the upper end of the spindle body (2), a connecting seat (12) for installing the spindle box (10) is arranged at the upper part of the spindle box (10), a stiffening plate (13) is fixedly arranged between the spindle box (10) and the connecting seat (12), the upper end of the spindle body (2) and the upper end of an inserting ring (36) are inserted into an inner cavity of the spindle box (10) from bottom to top, an upper flange (38) is fixedly connected with the upper end of an annular outer shell body (3), the upper flange (38) is fixedly connected with the spindle box (10) through bolts, and an annular pad (11) is arranged at the connecting position.
9. The spindle sealing mechanism for a needling machine as set forth in claim 8, wherein: the lower extreme of main shaft body (2) is provided with supporting seat (9), and main shaft body (2) and supporting seat (9) movable through connection, the upper surface of supporting seat (9) is provided with first holding ring (91), the top of first holding ring (91) is provided with second holding ring (92), the outside of main shaft body (2) is located to the equal movable sleeve of first holding ring (91) and second holding ring (92).
10. The spindle sealing mechanism for a needling machine as set forth in claim 9, wherein: the novel positioning device is characterized in that the first positioning ring (91) is fixedly connected with the supporting seat (9) through a first bolt (93), the second positioning ring (92) is fixedly connected with the first positioning ring (91) through a second bolt (94), a gap is reserved between the second positioning ring (92) and the first positioning ring (91), and bearings are arranged on the inner sides of the first positioning ring (91) and the second positioning ring (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310692242.0A CN116428364B (en) | 2023-06-13 | 2023-06-13 | Spindle sealing mechanism for needling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310692242.0A CN116428364B (en) | 2023-06-13 | 2023-06-13 | Spindle sealing mechanism for needling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116428364A true CN116428364A (en) | 2023-07-14 |
| CN116428364B CN116428364B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310692242.0A Active CN116428364B (en) | 2023-06-13 | 2023-06-13 | Spindle sealing mechanism for needling machine |
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| FR2033778A5 (en) * | 1970-01-28 | 1970-12-04 | Inst Fiz Metallov | |
| CN103016736A (en) * | 2012-12-20 | 2013-04-03 | 四川日机密封件股份有限公司 | Hydraulic/air pressure controlled mechanical seal device |
| JP2016080544A (en) * | 2014-10-17 | 2016-05-16 | 新日鐵住金株式会社 | Seal structure and external pressure load-testing machine having the same |
| CN206246676U (en) * | 2016-11-16 | 2017-06-13 | 广州石井力展新型建筑材料有限公司 | A kind of rotation axis seal structure |
| CN107588200A (en) * | 2017-10-17 | 2018-01-16 | 江苏金龙科技股份有限公司 | The main-shaft spindle head sealing device of needing machine |
| CN108426036A (en) * | 2018-05-17 | 2018-08-21 | 苏州宝骅密封科技股份有限公司 | A kind of adjustable apex combustion seal of sealed pressure |
| CN111365461A (en) * | 2020-03-17 | 2020-07-03 | 江苏丰尚智能科技有限公司 | Thermal compression sealing device |
-
2023
- 2023-06-13 CN CN202310692242.0A patent/CN116428364B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2033778A5 (en) * | 1970-01-28 | 1970-12-04 | Inst Fiz Metallov | |
| CN103016736A (en) * | 2012-12-20 | 2013-04-03 | 四川日机密封件股份有限公司 | Hydraulic/air pressure controlled mechanical seal device |
| JP2016080544A (en) * | 2014-10-17 | 2016-05-16 | 新日鐵住金株式会社 | Seal structure and external pressure load-testing machine having the same |
| CN206246676U (en) * | 2016-11-16 | 2017-06-13 | 广州石井力展新型建筑材料有限公司 | A kind of rotation axis seal structure |
| CN107588200A (en) * | 2017-10-17 | 2018-01-16 | 江苏金龙科技股份有限公司 | The main-shaft spindle head sealing device of needing machine |
| CN108426036A (en) * | 2018-05-17 | 2018-08-21 | 苏州宝骅密封科技股份有限公司 | A kind of adjustable apex combustion seal of sealed pressure |
| CN111365461A (en) * | 2020-03-17 | 2020-07-03 | 江苏丰尚智能科技有限公司 | Thermal compression sealing device |
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| Publication number | Publication date |
|---|---|
| CN116428364B (en) | 2023-08-18 |
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