CN203828830U - Rotary buffer with hydraulic damping adjustable - Google Patents

Abstract

A rotary buffer with hydraulic damping adjustable comprises a shaft sleeve capable of being filled with damping oil and a rotary shaft rotationally matched with the shaft sleeve in a sealed mode and capable of disturbing flow of the damping oil. Two rotary wing plates of the rotary shaft are respectively sleeved with a one-way oil passing valve plate to be in sliding fit with the wall of an inner cavity of the shaft sleeve. Two oil separation ribs making abutting contact with the rotary shaft and limiting the rotation ranges of the rotary wing plates are arranged on the wall of the inner cavity of the shaft sleeve. A bearing shaft is arranged at the rear end of the rotary shaft and in sleeved fit with a bearing hole formed in the bottom of the inner cavity of the shaft sleeve. An adjusting hole is formed in the axial direction of the rotary shaft from front to back, and an adjusting screw rod is inserted in the adjusting hole from the front end of the rotary shaft and connected with the adjusting hole in a sealed mode. The portions, on the two sides of each rotary wing plate, of the rotary are respectively provided with a throttling port for communicating the inner cavity of the shaft sleeve with the adjusting hole in the radial direction, and oil passing gaps between the throttling ports and the adjusting screw rod and an oil passing gap between the adjusting hole and the adjusting screw rod can be adjusted by rotating the adjusting screw rod. Because the adjusting screw rod is fixed in the rotary shaft, the adjusting screw rod is not used for positioning or supporting the rotary shaft. Therefore, the length of the rotary buffer with hydraulic damping adjustable is greatly reduced, and the rotary buffer with hydraulic damping adjustable is simpler in structure and more convenient and reliable to assemble or adjust.

Description

The rotary buffer that a kind of hydraulic damping is adjustable

Technical field

The utility model relates to the hydraulic damping buffer that water-closet bowl cover plate is used, particularly the adjustable rotary buffer of a kind of hydraulic damping.

Background technology

Water-closet bowl cover plate mostly adopts the velocity of rotation of hydraulic damping buffer adaptation cover plate at present, the function that starts fast and slowly cover to realize cover plate, the governor motion of existing hydraulic damping buffer is all arranged on buffer afterbody, therefore buffer length is longer, this design is unfavorable for the miniaturization of buffer, and governor motion likely can touch and be shifted because of external force in assembling process, or rotate and affect degree of regulation because of rotating shaft in the course of the work, cause the inconsistent problem of rotating speed of the buffer of batch production, while causing cover plate to turn over buffering under rotation, because differing, left and right torsion produces shake, cover plate buffering is steady not.

A kind of damper as disclosed in Chinese utility model patent (CN201445457U), comprise by gland 1 and be encapsulated in the damping oil in housing 7, axle core 5 and valve block 6, housing 7 inwalls are at least axially provided with a convex tendon that extends to axle core 5 surfaces, axle core 5 surfaces are at least axially provided with a block 5.2 that extends to inner walls, valve block 6 swings and is enclosed within the axial placed cavity 5.6 arranging of block 5.2, the set screw 9 of housing 7 rear ends and damping adjusting power is tightly connected, by set screw 9 axial rotary displacements, adjust the size in the axial end damping oil passing gap of set screw 9 axial ends and axle core 5 and block 5.2, in adjustment housings 7, act on the oil size of hydraulic damping power of damping shaft core 5, rotating speed when the 5 damping work of regulating shaft core, thereby realize the adjusting of the speed of axle core 5 damping work, realize the adjusting of cover plate buffer time length, thisly in housing 7 rear ends, set screw 9 is set and has increased the axial length of damper, be unfavorable for the Miniaturization Design of damper, and set screw 9 is exposed to housing 7 rear ends, the inner circular hole of set screw 9 is for positioning supports axle core 5 rear ends simultaneously, this makes to touch and be shifted because of external force in the assembling process of damper, or set screw 9 is stressed and rotational displacement while may back shaft cores 5 rotating.

For another example the disclosed a kind of regulatable buffer of Chinese utility model patent (CN2580897Y), cylindrical shell 1 inner chamber is equipped with axle core 2, the inner chamber of cylindrical shell 1 is provided with two symmetrical supporting slices 6, on axle core 2, be provided with shim 7 and blade 8, wherein inner chamber is divided into pressurized chamber and not subjected to pressure chamber by supporting slice 6, shim 7, blade 8, the rear portion of cylindrical shell 1 is provided with conditioning chamber 11, the rear end of conditioning chamber 11 is provided with adjustable bonnet 12, and the pressurized chamber in cylindrical shell 1 and not subjected to pressure chamber have respectively convection holes 13 to be communicated with conditioning chamber 11; Although regulate the space of conditioning chamber 11 to regulate the flow of convection holes 13 by rotating bonnet 12, make the inner chamber of cylindrical shell 1 adjustable to axle core 2 hydraulic damping power, realize axle core 2 rotating speeds adjustable, make the time of closet cover plate buffering adjustable; The setting of convection holes 13, need to increase the dividing plate between inner chamber and the conditioning chamber 11 of separating cylindrical shell 1, and bonnet 12 is connected to form conditioning chamber 11 with cylindrical shell 1 back-end sealing nut and has also increased the axial length of buffer, therefore the assembly space that takies cover plate of this buffer is larger, is unfavorable for the Miniaturization Design of product.

For another example the adjustable damper of the disclosed a kind of rotating speed of Chinese utility model patent (CN202118173U), can coordinate with axle sleeve 20 sealed rotational also containing the axle sleeve 20, that can fill damping oil can the mobile rotating shaft 10 of disturbance damping oil, between rotating shaft 10 and axle sleeve 20, be provided with at least one unidirectional fuel tap sheet 30 of crossing, axle sleeve 20 one end are provided with a seal 40 that can move axially to regulate axle sleeve 20 inner chamber length, in rotating shaft 10, be embedded a nut 50, one set screw 60 screws and is connected with this nut 50 through seal 40, and seal 40 is linked with rotating shaft 10; Seal 40 together rotates with rotating shaft 20, regulates gap length between the two by screw 60, and the mobile pressure of damping adjusting oil changes the damping force of damping oil countershaft 10, reaches the object of rotating shaft 10 rotating speeds and rotation time adjusting; This damper is because being connected interlock with rotating shaft 10 by screw 60 at seal 40, and by screw 60 regulate seal 40 with the spacing of rotating shaft 10 in axle sleeve 20 to regulate speed oil, realize the function of rotational speed regulation; The problem of its existence is: seal 40 in the interior interlock of axle sleeve 20, may cause screw 60 loosening and seal 40 and the axial spacing of rotating shaft 10 are changed with rotating shaft 10, and axle sleeve 20 rear ends arrange seal 40 and also increased the length of damper.

Utility model content

For addressing the above problem, the utility model is intended to propose the adjustable rotary buffer of a kind of hydraulic damping, the choke valve of one damping adjusting oil through-flow flow in whole axle sleeve is only set in rotating shaft, length of the present utility model is greatly reduced, once and throttle valve opening regulate fixing after, choke valve duty is affected by assembling of the present utility model or duty no longer.

For reaching above-mentioned purpose, the rotary buffer that a kind of hydraulic damping is adjustable, containing the axle sleeve that can fill damping oil, one with sleeve sealing can the disturbance damping oil mobile rotating shaft that is rotatably assorted also, on two rotor plates of rotating shaft, each cover has a unidirectional fuel tap sheet excessively and bore sleeve wall to be slidably matched, bore sleeve wall is provided with two oil removal muscle of conflicting with rotating shaft and limiting rotor plate rotation amplitude, it is characterized in that: rotating shaft rear end is provided with the dead eye fit that a bolster and bore sleeve bottom is provided with; Axially going up by being provided with an adjustment hole after forward direction of rotating shaft, an adjusting screw(rod) is inserted adjustment hole and is tightly connected with it by rotating shaft front end; The rotating shaft footpath of each rotor plate both sides is upwards respectively provided with the restriction of a connection bore sleeve and adjustment hole, rotate adjusting screw(rod) adjustable its with restriction, adjustment hole between mistake oil-gap size.

On described adjusting screw(rod), comprise spiral shell head section, external thread section and round rod segment, adjustment hole comprises for the trepanning of adjusting screw(rod) quick insertion, connects the screwed hole coordinating, the jack that supplies round rod segment fit for external thread section; Described restriction communicates with jack, and round rod segment pastes to touch with restriction and coordinates; Rotate adjusting screw(rod), round rod segment moves axially in jack, and the aperture that adjusting joint head piece coordinates with round rod segment synchronously realizes effective passage section between restriction with adjusting joint head piece flow, to regulate the rotating speed of rotating shaft under damping work.

Described jack axially connects bolster, and restriction axially communicates with bolster.Regulate by the oil duct flow of restriction, jack and dead eye, restriction, regulate the rotating speed of rotating shaft under damping work.

Described jack axial rearward end is not arranged on bolster.

Described adjusting screw(rod) is provided with an annular groove, and in annular groove, sheathed one makes the trepanning of adjusting screw(rod) and rotating shaft form the O RunddichtringO of sealing; Make to form sealing between adjusting screw(rod) and rotating shaft by O RunddichtringO, avoid damping oil to flow out through restriction, adjustment hole.

Described annular groove is arranged in the spiral shell head section of adjusting screw(rod); This set can make in adjusting screw(rod) quick insertion adjustment hole, and adjusting screw(rod) rotates several teeth, can make adjusting screw(rod) be threaded with rotating shaft and form sealing.

Described rotating shaft is provided with one and connects with bore sleeve opening sleeve the change being rotatably assorted, and the bottom of rotor plate and bore sleeve bottom surface are slidably matched, the top of described rotor plate withchange inner ring surface connects, and inner ring surface coordinates with the top slide of oil removal muscle; Rotor plate footpath is upwards provided with one for the valve pool of fuel tap sheet was installed, crossing fuel tap sheet radially conflicts and coordinates with bore sleeve wall and valve pool respectively, rotating shaft rotating linkage is crossed fuel tap sheet and between two cell walls, is swung in valve pool, in the middle of crossing fuel tap sheet, be provided with an oil-through hole, on valve pool one sidewall, edge is provided with two valve ports that misplace with oil-through hole, on another sidewall of valve pool, can pass through fast valve block and rotor plate along being provided with through-flow mouthful with oil-through hole contraposition, crossing fuel tap sheet damping oil while separating with valve port.When a direction is rotated in rotating shaft, sleeve lining was stirred fuel tap sheet and was swung to valve pool sidewall shutoff valve port, and damping oil cannot pass through fuel tap sheet; Reversion rotating shaft, fuel tap sheet is struck and separates with valve port to another sidewall of valve pool excessively, and damping oil passes through fast from crossing fuel tap sheet.

On described bore sleeve bottom surface, two oil removal muscle sides are arranged with a pair of lower axial end face that makes rotor plate and form the oil unloading trough in gap; When the rotor plate of rotating shaft slips over oil unloading trough, the damping oil between rotor plate two sides can pass through fast, damping oil to rotor plate without flowed friction, make cover plate upper climb over journey in undamped and very light.

Described inner ring surface is provided with a pair of through-flow groove of opening oil removal muscle both sides oil circuit in the time of the non-damping rotary of rotating shaft.The first half term of turning under the second half of on the cover board turning over and cover plate, when the top of oil removal muscle slips over through-flow groove, damping oil in whole bore sleeve can be logical by through-flow concentrated flow, and oil removal muscle without hydraulic damping power, makes the first half term of turning under the second half of turning on cover plate and cover plate quick and light to damping oil.

Described bore sleeve opening is also welded with a gland, between gland and change, also cover has gasket ring and sealing ring, gland, gasket ring and sealing ring form rotating shaft sealing the black box at bore sleeve, make the change rotary seal of rotating shaft at axle sleeve leading section by sealing assembly.

The beneficial effects of the utility model are: by rotating the aperture of adjusting screw(rod) control itself and restriction, adjustment hole, Flow Velocity excessively while regulating rotating shaft damping work, change the hydraulic pressure difference of the damping oil between rotor plate two sides, the size of the hydraulic damping power of damping adjusting oil to rotor plate, the velocity of rotation of control rotating shaft; Because the complete sealing thread of adjusting screw(rod) is fastened in rotating shaft axle, and adjusting screw(rod) is not used in location or the support of rotating shaft, and therefore the utility model length reduces greatly, structure is more simple, assembling or regulate more convenient; After adjusting screw(rod) regulates and is fixed in rotating shaft, the state of adjusting screw(rod) is not subject to the impact of rotating shaft assembling or duty and is shifted, and regulatory function is more reliable.

Brief description of the drawings

Fig. 1 is three-dimensional assembling structure decomposing schematic representation one of the present utility model.

Fig. 2 is three-dimensional assembling structure decomposing schematic representation two of the present utility model.

Fig. 3 is the perspective view of the utility model axle sleeve.

Fig. 4 is the perspective view of the utility model rotating shaft.

Fig. 5 is the front view of the utility model rotating shaft.

Fig. 6 is the top view of the utility model rotating shaft.

Fig. 7 is the STRUCTURE DECOMPOSITION cutaway view of the utility model adjusting screw(rod) and rotating shaft assembling.

Fig. 8 is the structure cutaway view of the omnidistance forward undamped of the utility model rotating shaft work.

Fig. 9 is the structure cutaway view of the utility model rotating shaft revolution the second half damping work.

Figure 10 is the structure cutaway view under the utility model undamped adjustment state.

Figure 11 is the structure cutaway view under the utility model damping adjustment state.

Figure 12 is the structure cutaway view under another embodiment the utility model undamped adjustment state.

Figure 13 is the structure cutaway view under another embodiment the utility model damping adjustment state.

Accompanying drawing mark in figure: 10. axle sleeve; 11. bore sleeves; 110. inner chamber bottom surfaces; 12. oil removal muscle; 13. dead eyes; 14. oil unloading troughs; 20. rotating shaft; 21. changes; 211. inner ring surface; 212. through-flow grooves; 22. rotor plates; 221. lower surface; 23. valve pools; 231. valve port; 232. through-flow mouthfuls; 24. bolsters; 30. cross fuel tap sheet; 31. oil-through holes; 40. black box; 41. sealing rings; 42. gasket rings; 43. glands; 50. adjusting screw(rod); 51. round rod segments; 52. external thread sections; 53. spiral shell head sections; 531. annular groove; 54.O RunddichtringO; 60. adjustment hole; 61. jacks; 62. screwed holes; 63. trepannings; 70. restriction.

Detailed description of the invention

Below in conjunction with drawings and Examples, the utility model is further illustrated.

embodiment mono-(it is axial that adjustment hole connects rotating shaft).

As fig. 1, fig. 2with figure 10the shown adjustable rotary buffer of a kind of hydraulic damping, it is mainly made up of axle sleeve 10, rotating shaft 20, mistake fuel tap sheet 30, black box 40 and adjusting screw(rod) 50.

As fig. 2, fig. 3with fig. 4shown in ,the bore sleeve 11 of axle sleeve 10 of the present utility model rotates for supporting revolving shaft 20, two oil removal muscle 12 Central Symmetries are arranged on the chamber wall of bore sleeve 11, it is fixing that oil removal muscle 12 extends to inner chamber bottom surface 110 from the peristome of inner chamber 11, bore sleeve 11 bottom centre are provided with the dead eye 13 rotating for supporting revolving shaft 20 end support axles 24, this dead eye 13 does not connect axle sleeve 10 bottoms, on the inner chamber bottom surface 11 of axle sleeve 10, two oil removal muscle 12 sides are arranged with a pair of oil unloading trough 14.

As fig. 2～Fig. 7shown in ,the top of rotating shaft 20 of the present utility model is provided with one and connects with axle sleeve 10 inner chamber 11 opening sleeves the change 21 being rotatably assorted, in rotating shaft 20, the bottom of rotor plate 22 is connected with the inner ring surface 211 of change 21, the lower surface 221 of rotor plate 22 can be slidably matched with inner chamber bottom surface 110, inner ring surface 211 can coordinate with the top slide of oil removal muscle 12, inner ring surface 111 is provided with a pair of through-flow groove 212 of opening oil removal muscle 12 both sides oil circuits in the time of rotating shaft 20 non-damping rotary, rotor plate 12 footpaths are upwards provided with one for the unidirectional valve pool 23 of crossing fuel tap sheet 30 is installed, crossing fuel tap sheet 30 radially conflicts and coordinates with bore sleeve 11 walls and valve pool 23 respectively, rotating shaft 20 rotating linkages are crossed fuel tap sheet 30 and between two cell walls, are swung in valve pool 23, in the middle of crossing fuel tap sheet 30, be provided with an oil-through hole 31, on valve pool 23 1 sidewalls, edge is provided with two valve ports 232 that misplace with oil-through hole 31, on valve pool 23 another sidewalls along being provided with and through-flow mouthfuls 231 of oil-through hole 31 contrapositions, when crossing fuel tap sheet 30 and separating with valve port 232, damping oil can pass through fuel tap sheet 30 and rotor plate 22 fast, rotating shaft 20 ends are provided with one can merge the bolster 24 being rotatably assorted with the dead eye of axle sleeve 10 inner chamber 11 bottoms 13 covers.

As fig. 1, fig. 2, fig. 4~ fig. 7with figure 10shown in, design core of the present utility model is: the axially upper of rotating shaft 20 inserted adjustment hole 60 and be tightly connected with it by rotating shaft front end by being provided with adjustment hole 60, one adjusting screw(rod)s 50 after forward direction; Rotating shaft 20 footpaths of each rotor plate 22 both sides are upwards respectively provided with the restriction 70 of a connection bore sleeve 11 and adjustment hole 60, wherein on adjusting screw(rod) 50, comprise spiral shell head section 53, external thread section 52 and round rod segment 51, adjustment hole 60 comprises for the trepanning 63 of adjusting screw(rod) 50 quick insertions, connects the screwed hole 62 coordinating, the jack 61 that supplies round rod segment 51 fits for external thread section 52; Jack 61 axially connects bolster 24, and restriction 70 axially communicates with bolster 24; On adjusting screw(rod) 50, spiral shell head section 53 is provided with an annular groove 531, and in annular groove 531, sheathed one makes the trepanning 63 of adjusting screw(rod) 50 and rotating shaft 20 form the O RunddichtringO 54 of sealing; Restriction 70 communicates with jack 61, and round rod segment 51 pastes to touch with restriction 70 and coordinates; Rotate adjusting screw(rod) 50 adjustable its with restriction 70, jack 61 between mistake oil-gap.

As fig. 1, fig. 2with figure 10shown in, first adjusting screw(rod) 50 is sealedly connected in the axial adjustment hole 60 of rotating shaft 20, again in the unidirectional excessively valve pool 23 that fuel tap sheet 30 is placed on rotating shaft 20 rotor plates 22, then entirety is inserted in the bore sleeve 11 of axle sleeve 20, the chamber wall of valve block 30 edges and bore sleeve 11 circumferentially pastes to touch and is slidably matched, the lower surface 221 of rotor plate 22 is pasted to touch with the inner chamber bottom surface of axle sleeve 20 110 and is slidably matched, each rotor plate 22 is between two oil removal muscle 12, two oil removal muscle 12 are conflicted and limit rotor plate 22 rotation amplitudes on bore sleeve 11 walls and with rotating shaft 20, in rotating shaft 20, change 21 is rotatably assorted with inner chamber 11 openings, and the inner ring surface 211 of change 21 in oil removal muscle 12 tops and rotating shaft 20 pastes to touch and is slidably matched, oil removal muscle 12 radially pastes to touch with the diametric plane of rotating shaft 20 and is slidably matched, therefore two oil removal muscle 12 are separated into two oil pockets that can store damping oil axle sleeve, the bolster 24 of rotating shaft 20 ends merges and is rotatably assorted with the dead eye of axle sleeve 10 bottoms 13 covers, dead eye 13 bottom surfaces are pressed on cylindrical section 51 tops of adjusting screw(rod) 50, be that cylindrical section 51 is blocked oil circuit between each restriction 70 completely, then by black box 40, the change 21 of rotating shaft 20 is sealed in axle sleeve 10, gasket ring 41 is placed on to change 21 outer ring surfaces, again sealing ring 41 is placed on and on gasket ring 21, seals up change 21 and bore sleeve 11 openings, then gland 43 is pressed into inner chamber 11 openings and adopts crest to melt and be welded and fixed, complete assembling of the present utility model.

Describe the concrete enforcement action of operation principle of the present utility model below in detail.

As figure 10shown in, make it block jack 61 and restriction 70 by turning adjusting screw(rod) 50, the oil pocket of two damping oils that are separated into by oil removal muscle 12 cannot be communicated with, and damping oil is limited in this oil pocket, and lavatory lid (not shown in FIG.) is connected in rotating shaft 20.

As fig. 8, Fig. 3, Fig. 4 and Figure 10shown in, climbing on cover plate in journey, the 11 walls motions of the relative bore sleeve of rotating shaft 20 swung with valve port 232 fuel tap sheet 30 to separate, damping oil can be fast from oil-through hole 31 by through-flow mouthful 231, cross fuel tap sheet 30 both sides damping oils and pass through fast; And when the rotor plate 22 in rotating shaft 20 slips over the oil unloading trough 14 on bore sleeve bottom surface 110, damping oil passes through from oil unloading trough 14 fast, therefore, when the first half term of on the cover board overturning, damping oil without flowed friction, therefore turns over first half term very light to rotor plate 22 on cover plate; While turning over the second half on cover plate, oil removal muscle 12 slips over the through-flow groove 212 on the inner ring surface 211 of change 21 in rotating shaft 20, the oil pocket of two damping oils that axle sleeve 10 is separated into by oil removal muscle 12 is communicated with by through-flow groove 212, damping oil can flow freely in the bore sleeve of whole axle sleeve 10 11, make damping oil to rotor plate 22 without hydraulic damping power, in the overall process of therefore turning on above-mentioned cover plate, damping oil countershaft 20 is without hydraulic damping power, therefore on cover plate, turns over whole process very brisk convenient.

As fig. 9, Fig. 3, Fig. 4 and Figure 10shown in, turning under cover plate in front process, the relative bore sleeve 11 wall motions of rotating shaft 20 made fuel tap sheet 30 swing envelope person's valve port 232, damping oil can pass through from oil-through hole 31 fast, be that damping oil cannot pass through fuel tap sheet 30 and rotor plate 22 both sides, but oil removal muscle 12 oppositely slips over the through-flow groove 212 on the inner ring surface 211 of change 21 in rotating shaft 20, damping oil flows freely in bore sleeve 11 by through-flow groove 212, the oil pocket of two damping oils that axle sleeve 10 is separated into by oil removal muscle 12 is communicated with by through-flow groove 212, damping oil is to form hydraulic pressure at bore sleeve 11, damping oil to rotor plate 22 without hydraulic damping power, in the first half term of therefore turning under above-mentioned cover plate, damping oil countershaft 20 is without hydraulic damping power, rotating shaft 20 can quick rotation, cover plate lower upset fast, paste and touch the second half that moment enters cover plate upset with inner ring surface 211 when oil removal muscle 12 and through-flow groove 212 stagger, oil removal muscle 12 is divided into two oil pockets that limit damping oil bore sleeve 11 fast, and swing envelope person's valve port 232 owing to crossing fuel tap sheet 30, therefore oil-through hole 31 is closed, damping oil only can slowly pass through in the oil unloading trough 14 from the inner chamber bottom surface 110 of axle sleeve 10, therefore damping oil produces hydraulic damping power and rotating shaft 20 is slowly rotated rotor plate 22 and mistake fuel tap sheet 30, realize the slow drop overturning under the second half of cover plate, therefore under cover plate, switching process is first quick and back slow.

As figure 10 and Fig. 3, Fig. 4shown in, because the second half of overturning under cover plate is because damping oil only can slowly pass through in the oil unloading trough 14 from axle sleeve 10 inner chamber bottom surfaces 110, damping oil produces hydraulic damping power and makes the slow rotation of rotating shaft 20 with certain speed rotor plate 22 and mistake fuel tap sheet 30, if need to regulate the velocity of rotation of rotating shaft 20 damping duties, need the size of the generation hydraulic damping power to rotor plate 22 of damping adjusting oil; As figureshown in 11, screwdriver inserts trepanning 63, counter-rotates adjusting screw(rod) 50 by rotation spiral shell head section 53, external thread section 52 coordinates with screwed hole 62 makes adjusting screw(rod) 50 move to trepanning 63 directions, round rod segment 51 bottom faces of adjusting screw(rod) 50 and dead eye 13 bottom surfaces slowly separate and form gap and round rod segment 51 radial surfaces are slowly opened throttle orifice 70, make the damping oil can be by flowing between each throttle orifice 70 and dead eye 13, jack 61; Round rod segment 51 determines that with the aperture of throttle orifice 70 damping oil is by the flow of throttle orifice 70, adjust in this way the oil pressure of the damping oil in axle sleeve 10 inner chambers 11, change the size of damping oil to rotor plate 22 hydraulic damping power, regulate the rotating speed of rotating shaft 20, realize the cover plate damping adjustable object of reversal rate that falls slowly.

In adjusting screw(rod) 50, be installed in the adjustment hole 60 of rotating shaft, operating it need to use screwdriver insertion to turn, therefore after regulating, in assembling process of the present utility model, can not be shifted again, and can in rotating shaft 20 work, not have external force yet and can make its displacement, therefore the damping speed thing of rotating shaft 20 of the present utility model regulates very accurately, after batch production, can ensure the uniformity of product function.

embodiment bis-(it is axial that adjustment hole does not connect rotating shaft).

As figure 12 and Figure 13 shown in, the difference of the present embodiment and embodiment mono-is: jack 61 axial rearward end are not arranged on bolster 24, and adjustment hole 60 does not penetrate into 24 of bolsters, and restriction 70 still communicates by jack 61; In the time that adjusting screw(rod) 50 contacts round rod segment 51 bottom faces and jack 61, the round rod segment 51 of adjusting screw(rod) 50 is closed blocking-up throttle orifice 70 completely, makes cannot communicate between each throttle orifice 70, and the velocity of rotation of now rotating shaft 20 is fixed; In the time that rotation adjusting screw(rod) 50 makes its round rod segment 51 form gap with jack 61 bottoms and each restriction 70 simultaneously, each restriction 70 is connected by jack 61, round rod segment 51 determines that with the aperture of restriction 70 damping oil passes through the flow rate speed of jack 61 at each restriction 70, adjust in this way the oil pressure of the damping oil in axle sleeve 10 inner chambers 11, change the size of damping oil to rotor plate 22 hydraulic damping power, regulate the rotating speed of rotating shaft 20, realize the cover plate damping adjustable object of reversal rate that falls slowly.

Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, those skilled in the art, in the situation that not departing from spirit and scope of the present utility model, can also make various conversion or variation, therefore, all technical schemes that are equal to also should belong to category of the present utility model, are limited by each claim.

Claims (10)

1. the rotary buffer that hydraulic damping is adjustable, containing the axle sleeve that can fill damping oil, one with sleeve sealing can the disturbance damping oil mobile rotating shaft that is rotatably assorted also, on two rotor plates of rotating shaft, each cover has a unidirectional fuel tap sheet excessively and bore sleeve wall to be slidably matched, bore sleeve wall is provided with two oil removal muscle of conflicting with rotating shaft and limiting rotor plate rotation amplitude, it is characterized in that: rotating shaft rear end is provided with the dead eye fit that a bolster and bore sleeve bottom is provided with; Axially going up by being provided with an adjustment hole after forward direction of rotating shaft, an adjusting screw(rod) is inserted adjustment hole and is tightly connected with it by rotating shaft front end; The rotating shaft footpath of each rotor plate both sides is upwards respectively provided with the restriction of a connection bore sleeve and adjustment hole, rotate adjusting screw(rod) adjustable its with restriction, adjustment hole between mistake oil-gap.

2. the adjustable rotary buffer of a kind of hydraulic damping as claimed in claim 1, it is characterized in that: on described adjusting screw(rod), comprise spiral shell head section, external thread section and round rod segment, adjustment hole comprises for the trepanning of adjusting screw(rod) quick insertion, connects the screwed hole coordinating, the jack that supplies round rod segment fit for external thread section; Described restriction communicates with jack, and round rod segment pastes to touch with restriction and coordinates.

3. the adjustable rotary buffer of a kind of hydraulic damping as claimed in claim 2, is characterized in that: described jack axially connects bolster, and restriction axially communicates with bolster.

4. the adjustable rotary buffer of a kind of hydraulic damping as claimed in claim 2, is characterized in that: described jack axial rearward end is not arranged on bolster.

5. the adjustable rotary buffer of a kind of hydraulic damping as claimed in claim 2, is characterized in that: described adjusting screw(rod) is provided with an annular groove, and in annular groove, sheathed one makes the trepanning of adjusting screw(rod) and rotating shaft form the O RunddichtringO of sealing.

6. the adjustable rotary buffer of a kind of hydraulic damping as claimed in claim 5, is characterized in that: described annular groove is arranged in the spiral shell head section of adjusting screw(rod).

7. the adjustable rotary buffer of a kind of hydraulic damping as claimed in claim 1, it is characterized in that: described rotating shaft is provided with one and connects with bore sleeve opening sleeve the change being rotatably assorted, the bottom of rotor plate and bore sleeve bottom surface are slidably matched, the top of described rotor plate withchange inner ring surface connects, and inner ring surface coordinates with the top slide of oil removal muscle; Rotor plate footpath is upwards provided with one for the valve pool of fuel tap sheet was installed, crossing fuel tap sheet radially conflicts and coordinates with bore sleeve wall and valve pool respectively, rotating shaft rotating linkage is crossed fuel tap sheet and between two cell walls, is swung in valve pool, in the middle of crossing fuel tap sheet, be provided with an oil-through hole, on valve pool one sidewall, edge is provided with two valve ports that misplace with oil-through hole, on another sidewall of valve pool, can pass through fast valve block and rotor plate along being provided with through-flow mouthful with oil-through hole contraposition, crossing fuel tap sheet damping oil while separating with valve port.

8. the adjustable rotary buffer of a kind of hydraulic damping as claimed in claim 7, is characterized in that: on described bore sleeve bottom surface, two oil removal muscle sides are arranged with a pair of lower axial end face that makes rotor plate and form the oil unloading trough in gap.

9. the adjustable rotary buffer of a kind of hydraulic damping as claimed in claim 7, is characterized in that: described inner ring surface is provided with a pair of through-flow groove of opening oil removal muscle both sides oil circuit in the time of the non-damping rotary of rotating shaft.

10. the adjustable rotary buffer of a kind of hydraulic damping as claimed in claim 7, it is characterized in that: described bore sleeve opening is also welded with a gland, between gland and change, also cover has gasket ring and sealing ring, and gland, gasket ring and sealing ring form rotating shaft sealing the black box at bore sleeve.