CN202914615U - Bidirectional speed regulator - Google Patents
Bidirectional speed regulator Download PDFInfo
- Publication number
- CN202914615U CN202914615U CN 201220590931 CN201220590931U CN202914615U CN 202914615 U CN202914615 U CN 202914615U CN 201220590931 CN201220590931 CN 201220590931 CN 201220590931 U CN201220590931 U CN 201220590931U CN 202914615 U CN202914615 U CN 202914615U
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- piston
- front cover
- steel ball
- piston rod
- way valve
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Abstract
The utility model relates to a speed regulator, in particular to a bidirectional speed regulator which is widely used in the mechanical industry such as guide rails of a machine tool and main shaft moving. A cylinder barrel is arranged between a shell and a front end cover. A piston is arranged in the cylinder barrel. A piston rod is arranged in the piston in an inserted mode and penetrates through the front end cover to extend outwards. An oil path communicated with the right side of the piston is arranged in the shell and communicated with the portion, in the front end cover, of the cylinder barrel through a backflow pipe. A steel ball is arranged in the oil path, and a spring is arranged between the steel ball and the backflow pipe. A separation sleeve is arranged between the spring and the steel ball. A forward moving throttle valve and a retreating throttle valve, which are communicated with the oil path, are respectively arranged on the upper portion of the shell. A front stop block is arranged on the head portion of the piston rod, and a rear stop block is arranged at the middle end of the piston rod and on the left side of the front end cover. The bidirectional speed regulator is simple in structure, convenient to operate and capable of improving work efficiency and precision, and has an adjustment function.
Description
Technical field
The utility model is a kind of speed stabilization machine, and particularly a kind of two-way speed stabilization machine is widely used in the machinery industries such as machine tool guideway, main axle moving.
Background technique
Speed stabilization machine of the prior art is also referred to as damped cylinder, often have complex structure, but using effect is not good enough, affects working efficiency, causes inconvenient operation.
Chinese patent 200920242036.5, a kind of speed stabilization machine is disclosed, comprise axle, outer tube, axle is positioned at outer tube, and outside the axle one end protruded tube, the other end that joins with axle in the outer tube is provided with inner tube, and axle is provided with oil sac near an end overcoat of inner tube, and oil sac is the bag-shaped of an annular, the opening end of oil sac is arranged on inner tube and the axle, is provided with piston between axle and the inner tube.This structure is relatively complicated, and the upper inconvenience that exists of operation.
Summary of the invention
Model utility mainly is to solve the deficiencies in the prior art, and a kind of compact structure is provided, and is easy to operate, the high two-way speed stabilization machine of running precision.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of two-way speed stabilization machine, comprise housing and front cover, be provided with cylinder barrel between described housing and front cover, be provided with piston in the described cylinder barrel, be plugged with piston rod in the described piston, described piston rod passes front cover and stretches out, be provided with the oil circuit that is connected with the piston right side in the described housing, described oil circuit is connected with cylinder barrel in the front cover by reflow pipe, be provided with steel ball in the described oil circuit, be provided with spring between described steel ball and reflow pipe, be provided with separation sleeve between described spring and steel ball, the top of described housing is respectively equipped with advancing throttle valve and moving back throttle valve of being connected with oil circuit, and the head of described piston rod is provided with positive stop, the middle-end of described piston rod is provided with backstop, and described backstop is located at the left side of front cover.
Speed stabilization machine (damped cylinder) housing is fixed, is applied an active force of turning left direction at the piston rod positive stop, this moment the assemblies such as piston rod and piston thereupon toward left movement, this moment, the hydraulic oil of cylinder body inner carrier both sides began to flow.When the hydraulic oil in the cylinder barrel of piston left side passes through front cover, angle coupling, return tube, one-way valve, because the effect of the impact force that one-way valve inner spring pressure and running of hydraulic power oil cause, steel ball tightly seals main passage, left side in the housing, hydraulic oil can only flow to into throttle valve by one-way valve inner spring, separation sleeve, turn throttle valve turncap, tapered spool upper-lower position in the capable of regulating throttle valve, namely adjust the size of throttle flow rate sectional area, when sectional area is large, hydraulic fluid flow rate is large, piston rod and piston assembly movement velocity are just fast, otherwise speed is just slow.Hydraulic oil is by after advancing throttle valve, minute two-part, and first portion enters moves back throttle valve, has an amount of hydraulic oil to flow through according to spool aperture size, enters in the cylinder barrel of piston right side by moving back throttle valve side separation sleeve, spring, housing oil circuit; Second portion (major component) enters the hydraulic oil of one-way valve because the positive pressure in piston left side and the negative pressure on one-way valve right side, by move back throttle valve side steel ball, separation sleeve backs down spring, hydraulic oil enters in the cylinder barrel of piston right side by the housing oil circuit.Being designed with an one-way valve at the additional oil circuit of housing is communicated with piston right side cylinder barrel, because the existence of piston rod, piston both sides flow volume is also unequal, when the past left movement of the assemblies such as piston rod and piston, piston right side cylinder barrel inner volume changes than piston left side cylinder barrel inner volume and changes greatly, can form larger negative pressure in the cylinder barrel of right side, and the one-way valve steel ball that housing replenishes on the oil circuit will be opened, the hydraulic oil that replenishes in the oil circuit is directly entered in the cylinder barrel of piston right side, to keep roughly balance of pressure.Like this, the movement velocity can come by regulating throttle valve control piston bar and piston assembly under the effect of external force when piston rod and piston assembly move to left realizes stepless speed regulation.
Apply an active force toward right at the piston rod backstop, the assemblies such as piston rod and piston are thereupon toward right motion at this moment, and this moment, the hydraulic oil of cylinder body inner carrier both sides began to flow.At this moment, the one-way valve that housing replenishes on the oil circuit is closed owing to the oil pressure effect, when the hydraulic oil in the cylinder barrel of piston right side enters when moving back throttle valve side one-way valve by the housing oil circuit, because the effect of the impact force that one-way valve inner spring pressure and running of hydraulic power oil cause, steel ball tightly seals main passage, right side in the housing, hydraulic oil can only pass through the one-way valve inner spring, separation sleeve flows to and moves back throttle valve, the throttle valve turncap is moved back in turn, tapered spool upper-lower position in the capable of regulating throttle valve, namely adjust the size of throttle flow rate sectional area, when sectional area was large, hydraulic fluid flow rate was large, piston rod and piston assembly movement velocity are just fast, otherwise speed is just slow.Hydraulic oil is by after moving back throttle valve, minute two-part, and first portion enters into throttle valve, has an amount of hydraulic oil to flow through according to spool aperture size, enters in the cylinder barrel of piston left side by advancing throttle valve side separation sleeve, spring, return tube; Second portion (major component) enters into the hydraulic oil of throttle valve side one-way valve because the negative pressure in the positive pressure on piston right side and one-way valve left side, by advance throttle valve side steel ball, separation sleeve backs down spring, hydraulic oil enters in the cylinder barrel of piston left side by return tube.Like this, when piston rod and piston assembly move to right, can move back the movement velocity that throttle valve comes control piston bar and piston assembly by adjusting under the effect of external force, realize stepless speed regulation.
Because the existence of piston rod, piston both sides flow volume is also unequal, replenish oil pipe (oil pipe connects an external additional fuel tank) so need to arrange one at the housing place, when the past left movement of piston, piston right side Volume Changes is larger than the piston left side, and insufficient section replenishes hydraulic oil by replenishing oil pipe to the piston right side.Otherwise when the past right motion of piston, piston right side redundance flows back to additional fuel tank by replenishing oil pipe.
As preferably, described reflow pipe is connected with front cover by angle coupling, between described reflow pipe and angle coupling, be connected by the one-way valve joint respectively between reflow pipe and housing, described front cover fixes by the front cover pressing plate, be provided with limited ring between described front cover pressing plate and backstop, the outer side wall of described housing is provided with the one-way valve control nut that is connected with oil circuit, be provided with the one-way valve steel ball between described one-way valve control nut and oil circuit, be provided with the one-way valve separation sleeve between described one-way valve steel ball and one-way valve control nut, be provided with check valve spring between described one-way valve separation sleeve and one-way valve control nut, be provided with the adjusting steel ball in the right side of described piston and the oil circuit, described adjusting steel ball is regulated the location by the positioning screw parent phase that is located in the oil circuit.
As preferably, be provided with guide ring between described piston and cylinder barrel, between described piston and cylinder barrel, seal mutually by height lip oil sealing between front cover and piston rod, be provided with oilless bearing between described front cover and piston rod.
As preferably, the bottom of described housing is provided with the makeup oil pipe joint that is connected with the piston right side, and described makeup oil pipe joint is connected with additional oil pipe.
As preferably, described piston rod and piston are fastened by fastening screw trip bolt.
As preferably, be fastened by pull bar between described front cover and housing.
Therefore, a kind of two-way speed stabilization machine that the utility model provides, simple in structure, have regulatory function, easy to operate, promote working efficiency and precision.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is sectional structure schematic representation of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: as depicted in figs. 1 and 2, a kind of two-way speed stabilization machine, comprise housing 1 and front cover 2,2 of described housing 1 and front covers are provided with cylinder barrel 3, be provided with piston 4 in the described cylinder barrel 3, be plugged with piston rod 5 in the described piston 4, described piston rod 5 passes front cover 2 and stretches out, be provided with the oil circuit 6 that is connected with piston 4 right sides in the described housing 1, described oil circuit 6 is connected with cylinder barrel 3 in the front cover 2 by reflow pipe 7, be provided with steel ball 8 in the described oil circuit 6,7 of described steel ball 8 and reflow pipes are provided with spring 9,8 of described spring 9 and steel balls are provided with separation sleeve 10, the top of described housing 1 is respectively equipped with advancing throttle valve 11 and moving back throttle valve 12 of being connected with oil circuit 6, the head of described piston rod 5 is provided with positive stop 12, and the middle-end of described piston rod 5 is provided with backstop 13, and described backstop 13 is located at the left side of front cover 2.Described reflow pipe 7 is connected with front cover 2 by angle coupling 14,14 of described reflow pipe 7 and angle couplings, reflow pipe 7 is connected by one-way valve joint 15 respectively with 1 of housing, described front cover 2 fixes by front cover pressing plate 16,13 of described front cover pressing plate 16 and backstops are provided with limited ring 17, the outer side wall of described housing 1 is provided with the one-way valve control nut 27 that is connected with oil circuit 6, described one-way valve control nut 27 and 6 of oil circuits are provided with one-way valve steel ball 28, described one-way valve steel ball 28 and 27 on nut of one-way valve control are provided with one-way valve separation sleeve 29, described one-way valve separation sleeve 29 and 27 on nut of one-way valve control are provided with check valve spring 30, be provided with in the right side of described piston 4 and the oil circuit 6 and regulate steel ball 31, described adjusting steel ball 31 is regulated the location mutually by the setscrew nut 32 that is located in the oil circuit 6.3 of described piston 4 and cylinder barrels are provided with guide ring 18, and described piston 4 passes through the 19 mutually sealings of height lip oil sealing with 3 of cylinder barrels, front cover 2 and 5 in piston rod, and 5 in described front cover 2 and piston rod are provided with oilless bearing 20.The bottom of described housing 1 is provided with the makeup oil pipe joint 22 that is connected with piston 4 right sides, and described makeup oil pipe joint 22 is connected with additional oil pipe 23.Described piston rod 5 is fastened by fastening screw trip bolt 24 with piston 4.1 of described front cover 2 and housing are fastened by pull bar 25.
Claims (6)
1. two-way speed stabilization machine, it is characterized in that: comprise housing (1) and front cover (2), be provided with cylinder barrel (3) between described housing (1) and front cover (2), be provided with piston (4) in the described cylinder barrel (3), be plugged with piston rod (5) in the described piston (4), described piston rod (5) passes front cover (2) and stretches out, be provided with the oil circuit (6) that is connected with piston (4) right side in the described housing (1), described oil circuit (6) is connected with cylinder barrel (3) in the front cover (2) by reflow pipe (7), be provided with steel ball (8) in the described oil circuit (6), be provided with spring (9) between described steel ball (8) and reflow pipe (7), be provided with separation sleeve (10) between described spring (9) and steel ball (8), the top of described housing (1) is respectively equipped with advancing throttle valve (11) and moving back throttle valve (12) of being connected with oil circuit (6), the head of described piston rod (5) is provided with positive stop (12), the middle-end of described piston rod (5) is provided with backstop (13), and described backstop (13) is located at the left side of front cover (2).
2. a kind of two-way speed stabilization machine according to claim 1, it is characterized in that: described reflow pipe (7) is connected with front cover (2) by angle coupling (14), between described reflow pipe (7) and angle coupling (14), be connected by one-way valve joint (15) respectively between reflow pipe (7) and housing (1), described front cover (2) fixes by front cover pressing plate (16), be provided with limited ring (17) between described front cover pressing plate (16) and backstop (13), the outer side wall of described housing (1) is provided with the one-way valve control nut (27) that is connected with oil circuit (6), be provided with one-way valve steel ball (28) between described one-way valve control nut (27) and oil circuit (6), be provided with one-way valve separation sleeve (29) between described one-way valve steel ball (28) and one-way valve control nut (27), be provided with check valve spring (30) between described one-way valve separation sleeve (29) and one-way valve control nut (27), be provided with in the right side of described piston (4) and the oil circuit (6) and regulate steel ball (31), described adjusting steel ball (31) is regulated the location mutually by the setscrew nut (32) that is located in the oil circuit (6).
3. a kind of two-way speed stabilization machine according to claim 1 and 2, it is characterized in that: be provided with guide ring (18) between described piston (4) and cylinder barrel (3), between described piston (4) and cylinder barrel (3), seal mutually by height lip oil sealing (19) between front cover (2) and piston rod (5), be provided with oilless bearing (20) between described front cover (2) and piston rod (5).
4. a kind of two-way speed stabilization machine according to claim 1 and 2, it is characterized in that: the bottom of described housing (1) is provided with the makeup oil pipe joint (22) that is connected with piston (4) right side, and described makeup oil pipe joint (22) is connected with additional oil pipe (23).
5. a kind of two-way speed stabilization machine according to claim 1 and 2 is characterized in that: described piston rod (5) is fastened by fastening screw trip bolt (24) with piston (4).
6. a kind of two-way speed stabilization machine according to claim 1 and 2 is characterized in that: be fastened by pull bar (25) between described front cover (2) and housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220590931 CN202914615U (en) | 2012-11-12 | 2012-11-12 | Bidirectional speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220590931 CN202914615U (en) | 2012-11-12 | 2012-11-12 | Bidirectional speed regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914615U true CN202914615U (en) | 2013-05-01 |
Family
ID=48162934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220590931 Expired - Fee Related CN202914615U (en) | 2012-11-12 | 2012-11-12 | Bidirectional speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485512A (en) * | 2017-08-29 | 2017-12-19 | 范师华 | A kind of intellectual nursing bed hydraulic regulation action bars |
| CN114877005A (en) * | 2022-04-13 | 2022-08-09 | 山东阿诺达汽车零件制造有限公司 | Variable damping device of valve plate-free piston matched single-layer pipe small-hole damper |
-
2012
- 2012-11-12 CN CN 201220590931 patent/CN202914615U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485512A (en) * | 2017-08-29 | 2017-12-19 | 范师华 | A kind of intellectual nursing bed hydraulic regulation action bars |
| CN114877005A (en) * | 2022-04-13 | 2022-08-09 | 山东阿诺达汽车零件制造有限公司 | Variable damping device of valve plate-free piston matched single-layer pipe small-hole damper |
| CN114877005B (en) * | 2022-04-13 | 2023-10-17 | 山东阿诺达汽车零件制造有限公司 | Variable damping device of valve-plate-free piston matched single-layer pipe small-hole damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20131112 |