CN202579454U - Speed governing device used for hydraulic steady speed device and hydraulic steady speed device - Google Patents
Speed governing device used for hydraulic steady speed device and hydraulic steady speed device Download PDFInfo
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- CN202579454U CN202579454U CN 201220112718 CN201220112718U CN202579454U CN 202579454 U CN202579454 U CN 202579454U CN 201220112718 CN201220112718 CN 201220112718 CN 201220112718 U CN201220112718 U CN 201220112718U CN 202579454 U CN202579454 U CN 202579454U
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- piston rod
- hydraulic pressure
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Abstract
The utility model discloses a speed governing device used for a hydraulic steady speed device and the hydraulic steady speed device. The speed governing device comprises a piston, a piston rod provided with a buffering channel of hydraulic oil and a speed governing piece. A cone frustum shape current governing cavity is arranged in the buffering channel, the speed governing piece is provided with a cone frustum shape current governing portion, the current governing portion can reciprocate in the current governing cavity, and gaps between the outer wall of the current governing portion and the inner wall of the current governing cavity can be changed by the current governing portion in movement. The steady speed device comprises a cylinder body provided with an oil storage cavity, plugs used for plugging the front end and the back end of the cylinder body, a piston used for dividing the oil storage cavity into a front cavity and a back cavity, a piston rod fixed on the piston, a speed governing piece and a return spring. The cone frustum shape current governing cavity is arranged in the buffering channel, the speed governing piece is provided with a cone frustum shape speed governing portion, the speed governing portion can reciprocate in the current governing cavity, and the gasps between the outer wall of the current governing portion and the inner wall of the current governing cavity can be changed by the speed governing portion in movement. The speed governing device and the hydraulic steady speed device are reasonable and compact in structure and stable and reliable in performance, and effectively reduce manufacturing cost.
Description
Technical field
The utility model belongs to the damping device technical field, is specifically related to a kind of speed regulating mechanism and hydraulic pressure speed stabilization machine that is used for the hydraulic pressure speed stabilization machine.
Background technique
The hydraulic pressure speed stabilization machine is used for the processing of needs such as automatic drilling machine, machined into, milling machine processing one step, and a stepping stabilized speed is advanced and used on each mechanism or the machinery equipment of work.
At present; Hydraulic pressure speed stabilization machine maximum problem in application is exactly short problem in working life, because its reciprocating frequency is very high, parts depreciation is fast; General hydraulic pressure speed stabilization machine will leakage of oil in using less than year, has had a strong impact on the working life of hydraulic pressure speed stabilization machine.
For addressing the above problem, Chinese patent CN201696294U discloses a kind of speed stabilization machine, and it comprises axle, outer tube; Axle is positioned at outer tube, and outside the end protruded tube of axle, the other end that joins with axle in the outward appearance is provided with interior pipe; Axle is arranged with oil sac outward near an end of interior pipe; Oil sac is the bag shape of an annular, on pipe and the axle, is provided with piston between axle and the interior pipe in the opening end of oil sac is arranged on; This speed stabilization machine can be regulated from speed stabilizing between the 0.25-300kg, but speed stabilization machine uses oil sac as Sealing owing to there is not oil storage tank, repeatedly use this speed stabilization machine after, fluid can permeate with inwall from the outer wall of oil sac, sealing is variation gradually; In addition, comparatively serious to piston wear in this speed stabilization machine using process, the bearing pressure of an end this speed stabilization machine after the time reduces.Simultaneously, this speed stabilization machine complex structure, manufacturing and assembly cost are higher.
Chinese patent CN200978848Y discloses a kind of hydraulic pressure speed stabilization machine; It comprises outer shell, inner casing and is installed in the said outer shell and an end stretches out the piston rod of said outer shell; In said inner casing, be provided with and the contacted piston of said piston rod; Between said piston and upper end cap, be provided with oil sealing and Returnning spring, to realize the steady feeding and the sealing of piston rod.But in actual application, the sealing effect of this speed stabilization machine is relatively poor, and after using a period of time, fluid has certain infiltration from the position that piston rod cooperates with upper end cap.
The model utility content
First purpose of the utility model provide a kind of structure comparatively rationally, the comparatively reliable and stable speed regulating mechanism that is used for the hydraulic pressure speed stabilization machine of performance.
It is comparatively reasonable that second purpose of the utility model provides a kind of structure, the hydraulic pressure speed stabilization machine that performance is comparatively reliable and stable.
The technological scheme that realizes the utility model purpose is: a kind of speed regulating mechanism that is used for the hydraulic pressure speed stabilization machine comprises piston, is provided with the piston rod of hydraulic oil buffer channel and is used to regulate hydraulic oil the big or small speed governing part of flow when flowing through buffer channel; Be provided with the accent stream chamber of truncated cone in the said buffer channel; Said speed governing part is provided with the truncated cone that matches with said accent stream cavity shape and transfers stream portion; Said speed governing portion can move back and forth in transferring the stream chamber, and in moving, changes and transfer stream portion's outer wall and accent to flow the gap between the cavity wall.
In the technique scheme, said piston is fixed on the piston rod, and said hydraulic oil buffer channel is arranged in the piston rod and is communicated with space, both sides, piston front and back.
In the technique scheme, also be provided with the return port that is positioned at the piston rod outside on the said piston, be provided with an one-way valve in each return port.
In the technique scheme, said each return port and piston rod laterally arrange.
The technological scheme that realizes another purpose of the utility model is: a kind of hydraulic pressure speed stabilization machine, comprise the cylinder body, the plug that is used for shutoff cylinder body rear and front end that are provided with shoe cream room, be used for shoe cream room be separated into ante-chamber and back cavity piston, be fixed on piston rod on the piston, when being used to regulate hydraulic oil and flowing through buffer channel the flow size the speed governing part and be used to the Returnning spring that piston provides reseting elasticity; Be provided with the accent stream chamber of truncated cone in the said buffer channel; Said speed governing part is provided with the truncated cone that matches with said accent stream cavity shape and transfers stream portion; Said speed governing portion can move back and forth in transferring the stream chamber, and in moving, changes and transfer stream portion's outer wall and accent to flow the gap between the cavity wall.
In the technique scheme, said piston is fixed on the piston rod, and said hydraulic oil buffer channel is arranged in the piston rod and is communicated with the ante-chamber and the back cavity of both sides, piston front and back.
In the technique scheme, also be provided with the return port that is positioned at the piston rod outside on the said piston, be provided with an one-way valve in each return port.
In the technique scheme, said each return port and piston rod laterally arrange.
In the technique scheme, said accent stream chamber is arranged on the side end wall that piston rod is arranged in liquid storage cylinder, and the accent that the medial extremity that said speed governing part is arranged in cylinder body inserts piston rod flows the chamber.
In the technique scheme, the outboard end of said speed governing part stretches out outside the cylinder body.
The utlity model has positive effect: structure is comparatively rationally compact, and it is convenient and stable and reliable for performance to regulate, and process for machining and manufacturing is comparatively simplified, and effectively promotes total quality and has reduced manufacture cost.
Description of drawings
Fig. 1 is a kind of sectional structure schematic representation of speed regulating mechanism in the utility model;
Fig. 2 is a kind of sectional structure schematic representation of first kind of structure of hydraulic pressure speed stabilization machine in the utility model;
Fig. 3 is a kind of sectional structure schematic representation of second kind of structure of hydraulic pressure speed stabilization machine in the utility model;
Fig. 4 is a kind of sectional structure schematic representation of the third structure of hydraulic pressure speed stabilization machine in the utility model.
Embodiment
(embodiment 1, speed regulating mechanism)
Fig. 1 is a kind of sectional structure schematic representation of speed regulating mechanism in the utility model, has shown a kind of embodiment of speed regulating mechanism in the utility model.
Present embodiment is a kind of speed regulating mechanism that is used for the hydraulic pressure speed stabilization machine, sees shown in Figure 1ly, comprises piston 3, is provided with the piston rod 4 of hydraulic oil buffer channel 41 and is used to regulate hydraulic oil the speed governing part 5 of the size of flow when flowing through buffer channel 41; Be provided with the accent stream chamber 411 of truncated cone in the said buffer channel 41; Said speed governing part 5 is provided with the truncated cone that matches with said accent stream chamber 411 shapes and transfers stream portion 51; Said speed governing portion can move back and forth in transferring stream chamber 411, and in moving, changes and transfer stream portion's 51 outer walls and accent to flow the gap between 411 inwalls of chamber.
Said piston 3 is fixed on the piston rod 4, and said hydraulic oil buffer channel 41 is arranged in the piston rod 4 and is communicated with space, both sides, piston 3 front and back.Also be provided with the return port 31 that is positioned at piston rod 4 outsides on the said piston 3, be provided with an one-way valve 32 in each return port 31.Said each return port 31 laterally arranges with piston rod 4.Each one-way valve 32 comprises the steel ball 321 and the return springs 322 that are used for shutoff return port 31, and said return springs 322 is arranged on the side of steel ball 321 near speed governing part 5.
Piston rod 4 is provided with the jack 43 that is communicated with buffer channel at it in the present embodiment on an end end wall of speed governing part 5; Said speed governing part 5 inserts in this jack 43; The outer wall of said speed governing part 5 is provided with outside thread district 52, and the inwall of said jack 43 is provided with internal threaded regions 44, and said speed governing part 5 is screwed onto in the jack 43; And make it transfer stream portion 51 transferring in the stream chamber 411 in the journey to move back and forth revolving to move past, thereby realize regulating the technique effect of flow.
Present embodiment overflows 43 for fear of hydraulic oil from jack, also between speed governing part 5 outer walls and jack 43 inwalls, is provided with O-ring seal 100.
(embodiment 2, hydraulic pressure speed stabilization machine)
Fig. 2 is a kind of sectional structure schematic representation of first kind of structure of hydraulic pressure speed stabilization machine in the utility model, has shown first kind of embodiment of hydraulic pressure speed stabilization machine in the utility model.
Present embodiment is a kind of hydraulic pressure speed stabilization machine; See shown in Figure 2ly, comprise the cylinder body 1, the plug 2 that is used for shutoff cylinder body 1 rear and front end that are provided with shoe cream room 11, be used for shoe cream room 11 be separated into ante-chamber 12 and back cavity 13 piston 3, be fixed on piston rod 4 on the piston 3, when being used to regulate hydraulic oil and flowing through buffer channel 41 the flow size speed governing part 5 and be used to the Returnning spring 6 that piston 3 provides reseting elasticity; Be provided with the accent stream chamber 411 of truncated cone in the said buffer channel 41; Said speed governing part 5 is provided with the truncated cone that matches with said accent stream chamber 411 shapes and transfers stream portion 51; Said speed governing portion can move back and forth in transferring stream chamber 411, and in moving, changes and transfer stream portion's 51 outer walls and accent to flow the gap between 411 inwalls of chamber.
Said piston 3 is fixed on the piston rod 4, and said hydraulic oil buffer channel 41 is arranged in the piston rod 4 and is communicated with the ante-chamber 12 and back cavity 13 of both sides, piston 3 front and back.
Also be provided with the return port 31 that is positioned at piston rod 4 outsides on the said piston 3, be provided with an one-way valve 32 in each return port 31.Each one-way valve 32 comprises the steel ball 321 and the return springs 322 that are used for shutoff return port 31, and said return springs 322 is arranged on the side of steel ball 321 near speed governing part 5.Said each return port 31 laterally arranges with piston rod 4.
Piston rod 4 is provided with the jack 43 that is communicated with buffer channel at it in the present embodiment on an end end wall of speed governing part 5; Said speed governing part 5 inserts in this jack 43; The outer wall of said speed governing part 5 is provided with outside thread district 52, and the inwall of said jack 43 is provided with internal threaded regions 44, and said speed governing part 5 is screwed onto in the jack 43; And make it transfer stream portion 51 transferring in the stream chamber 411 in the journey to move back and forth revolving to move past, thereby realize regulating the technique effect of flow.
Present embodiment overflows 43 for fear of hydraulic oil from jack, also between speed governing part 5 outer walls and jack 43 inwalls, is provided with O-ring seal 100.
(embodiment 3, hydraulic pressure speed stabilization machine)
Fig. 3 is a kind of sectional structure schematic representation of second kind of structure of hydraulic pressure speed stabilization machine in the utility model, has shown second kind of embodiment of hydraulic pressure speed stabilization machine in the utility model.
Present embodiment and embodiment 2 are basic identical, and difference is: see shown in Figure 3ly, the center of two plugs 2 is provided with slide opening, and said speed governing part 5 passes this slide opening and stretches out outside the cylinder body 1.Also be provided with on the speed governing part 5 outside stretching out cylinder body 1 in addition and bear part 200, in actual use, can self be fixed on the external equipment through bearing part 200.
Present embodiment not only can pressure-bearing but also can have been born, and was a kind of multifunctional type speed stabilization machine, when being used to produce lathes, can select to bear still pressure-bearing mode as required, can effectively reduce integral body and take up room.
(embodiment 4, hydraulic pressure speed stabilization machine)
Fig. 4 is a kind of sectional structure schematic representation of the third structure of hydraulic pressure speed stabilization machine in the utility model, has shown the third embodiment of hydraulic pressure speed stabilization machine in the utility model.
Present embodiment and embodiment 2 are basic identical, and difference is: see shown in Figure 4ly, comprise that also one bears bar 7 through what the mode of being spirally connected was fixedly connected with piston rod 4; Said two plug 2 centers be equipped with slide opening, the said bar 7 that bears passes the slide opening of the plug 2 that is adjacent and stretches out outside the cylinder body; Said bar 7 centers that bear are provided with the open-work that runs through along axial direction; The medial extremity of said speed governing part 5 is arranged in the open-work that bears bar 7 and makes it transfer stream portion 51 to extend into transfers stream chamber 411, and the outboard end of said speed governing part 5 stretches out outside the cylinder body 1.
The said part 7 that bears stretches out the outer side of cylinder body 1 and also is provided with the portion of bearing 200, in actual use, can self be fixed on the external equipment through bearing part 200.
In the present embodiment; The outer wall of said speed governing part 5 is provided with outside thread district 52; Said bearing in part 7 open-works is provided with internal threaded regions 71; Said speed governing part 5 can make it transfer stream portion 51 in transferring stream chamber 411, to move back and forth front and back through the mode of in bearing part 7 open-works, rotating, thereby realizes regulating the technique effect of flow.
Present embodiment not only can pressure-bearing but also can have been born, and was a kind of multifunctional type speed stabilization machine, when being used to produce lathes, can select to bear still pressure-bearing mode as required, can effectively reduce integral body and take up room.
Obviously, the foregoing description of the utility model only be for explain clearly that the utility model does for example, and be not to be qualification to the mode of execution of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation that these connotations that belong to the utility model are extended out or change still belong to the protection domain of the utility model.
Claims (10)
1. a speed regulating mechanism that is used for the hydraulic pressure speed stabilization machine comprises piston (3), is provided with the piston rod (4) of hydraulic oil buffer channel (41) and is used to regulate hydraulic oil the big or small speed governing part (5) of flow when flowing through buffer channel (41); It is characterized in that: the accent stream chamber (411) that is provided with truncated cone in the said buffer channel (41); Said speed governing part (5) is provided with the truncated cone that matches with said accent stream chamber (411) shape and transfers stream portion (51); Said speed governing portion can move back and forth in transferring stream chamber (411), and in moving, changes and transfer stream portion's (51) outer wall and accent to flow the gap between the inwall of chamber (411).
2. the speed regulating mechanism that is used for the hydraulic pressure speed stabilization machine according to claim 1 is characterized in that: said piston (3) is fixed on the piston rod (4), and said hydraulic oil buffer channel (41) is arranged in the piston rod (4) and is communicated with space, both sides, piston (3) front and back.
3. the speed regulating mechanism that is used for the hydraulic pressure speed stabilization machine according to claim 2 is characterized in that: also be provided with the return port (31) that is positioned at piston rod (4) outside on the said piston (3), be provided with an one-way valve (32) in each return port (31).
4. the speed regulating mechanism that is used for the hydraulic pressure speed stabilization machine according to claim 3 is characterized in that: said each return port (31) laterally arranges with piston rod (4).
5. hydraulic pressure speed stabilization machine, comprise the cylinder body (1), the plug (2) that is used for shutoff cylinder body (1) rear and front end that are provided with shoe cream room (11), be used for shoe cream room (11) be separated into ante-chamber (12) and back cavity (13) piston (3), be fixed on piston rod (4) on the piston (3), when being used to regulate hydraulic oil and flowing through buffer channel (41) the flow size speed governing part (5) and be used to the Returnning spring (6) that piston (3) provides reseting elasticity; It is characterized in that: the accent stream chamber (411) that is provided with truncated cone in the said buffer channel (41); Said speed governing part (5) is provided with the truncated cone that matches with said accent stream chamber (411) shape and transfers stream portion (51); Said speed governing portion can move back and forth in transferring stream chamber (411), and in moving, changes and transfer stream portion's (51) outer wall and accent to flow the gap between the inwall of chamber (411).
6. hydraulic pressure speed stabilization machine according to claim 5 is characterized in that: said piston (3) is fixed on the piston rod (4), and said hydraulic oil buffer channel (41) is arranged in the piston rod (4) and is communicated with the ante-chamber (12) and the back cavity (13) of both sides, piston (3) front and back.
7. hydraulic pressure speed stabilization machine according to claim 6 is characterized in that: also be provided with the return port (31) that is positioned at piston rod (4) outside on the said piston (3), be provided with an one-way valve (32) in each return port (31).
8. hydraulic pressure speed stabilization machine according to claim 7 is characterized in that: said each return port (31) laterally arranges with piston rod (4).
9. hydraulic pressure speed stabilization machine according to claim 5; It is characterized in that: said accent stream chamber (411) is arranged on the side end wall that piston rod (4) is arranged in liquid storage cylinder, and the accent that the medial extremity that said speed governing part (5) is arranged in cylinder body (1) inserts piston rod (4) flows chamber (411).
10. hydraulic pressure speed stabilization machine according to claim 9 is characterized in that: the outboard end of said speed governing part (5) stretches out outside the cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220112718 CN202579454U (en) | 2012-03-23 | 2012-03-23 | Speed governing device used for hydraulic steady speed device and hydraulic steady speed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220112718 CN202579454U (en) | 2012-03-23 | 2012-03-23 | Speed governing device used for hydraulic steady speed device and hydraulic steady speed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579454U true CN202579454U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220112718 Expired - Fee Related CN202579454U (en) | 2012-03-23 | 2012-03-23 | Speed governing device used for hydraulic steady speed device and hydraulic steady speed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635598A (en) * | 2012-03-23 | 2012-08-15 | 施亨庆 | Hydraulic speed regulator and speed regulating mechanism for same |
| CN106151158A (en) * | 2015-03-26 | 2016-11-23 | 北京航天试验技术研究所 | A kind of voltage stabilizing output cylinder |
-
2012
- 2012-03-23 CN CN 201220112718 patent/CN202579454U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635598A (en) * | 2012-03-23 | 2012-08-15 | 施亨庆 | Hydraulic speed regulator and speed regulating mechanism for same |
| CN106151158A (en) * | 2015-03-26 | 2016-11-23 | 北京航天试验技术研究所 | A kind of voltage stabilizing output cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20150323 |
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| EXPY | Termination of patent right or utility model |