CN202326814U - Two-way no-return mechanism - Google Patents
Two-way no-return mechanism Download PDFInfo
- Publication number
- CN202326814U CN202326814U CN2011203611390U CN201120361139U CN202326814U CN 202326814 U CN202326814 U CN 202326814U CN 2011203611390 U CN2011203611390 U CN 2011203611390U CN 201120361139 U CN201120361139 U CN 201120361139U CN 202326814 U CN202326814 U CN 202326814U
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- China
- Prior art keywords
- friction pair
- spring
- dribbling
- road
- input shaft
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Abstract
The utility model discloses a two-way no-return mechanism comprising an input shaft with a ball passage and a pushing disk with a ball passage, which is sleeved on the input shaft with the ball passage, wherein the end part of the pushing disk with the ball passage is in sleeve joint with an output shaft; a left end cover is connected to the output shaft, and a right end cover is connected to the input shaft with the ball passage; the left end cover and the right end cover are connected with a casing so as to form a cavity body of a no-return mechanism; a rotor of a friction pair is sleeved on the pushing disk with the ball passage in the cavity body of the no-return mechanism, the rotor of the friction pair is provided with the stators of the friction pair at intervals, one ends of the stators of the friction pair are connected with the right end cover, and the other ends of the stators are connected with a spring seat; a spring is arranged on the spring seat, and the spring and a positioning platform of the output shaft are connected in a sleeve-joint way; and corrugated springs are arranged between the stators of the friction pair, which are positioned in the ring direction of the casing, and on the outer circumferential walls of the rotor of the friction pair and the spring seat. According to the mechanism, the effective separation of the rotor and the stators of the friction pair is ensured, the frictional loss is reduced, and the efficiency is enhanced; and when the MX action of active moment does not exist, the friction pair is pressed by the spring, and the output shaft is locked.
Description
Technical field
The utility model relate to mechanical field driven system with pure machinery, two-way, realize initiatively driving driven, the mechanism that the driven nothing that can not drive active is returned.
Background technique
The electromagnet friction disk type and pure machinery, wedge block type, roller type, the ratchet-type that are adopted at present do not have return mechanism, and the voussoir of Purely mechanical, roller, ratchet all have when running well and contact the sliding friction problem with fixed block.In the structure shown in Figure 1: be equipped with the push-plate 13 in dribbling road on the dribbling road input shaft 15, an end of the push-plate 13 in dribbling road and output shaft 1 be suit mutually.Original structure is not provided with alley and steel ball between input shaft and push-plate; When operation, input shaft need be removed the friction pair that compresses, and just must offset the pressure of saucer spring 16 with electromagnet power; And let the spring 10 multiple pressures distance h that contracts, let the separative space of friction pair.Original structure can not guarantee evenly separating of friction plate 11 because ripple spring 19 is not set, and is often pressing friction pair moving plate 12 because gravity or vibration cause make friction pair stator 11 draw close to a side, and is producing friction.Voussoir, roller, pawl type are pushed aside on one side, can freely rotate, and the another side frictional loss still exists.
The model utility content
The purpose of the utility model provides a kind of two-way no return mechanism, this mechanism can reduce the frictional loss of mechanism, has guaranteed effective separation of friction pair moving plate, friction pair stator, has reduced frictional loss, has improved efficient.
The purpose of the utility model realizes through following technical proposals.
A kind of two-way no return mechanism comprises dribbling road input shaft and is set in the dribbling road push-plate on the dribbling road input shaft that the end of the push-plate in dribbling road is socketed with output shaft; On said output shaft, be connected with left end cap, on dribbling road input shaft, be connected with right end cap through the input shaft angle bearing through the output shaft angle bearing; Left end cap, right end cap and housing connect into a no return mechanism cavity;
Be set with the friction pair moving plate on the push-plate in dribbling road in the said no return mechanism cavity; The friction pair moving plate is arranged at intervals with the friction pair stator; One end and the right end cap of friction pair stator join; The other end and the spring seat of friction pair stator join, and spring seat is provided with spring, and the positioning table of spring and output shaft joins; Between the friction pair stator of said housing hoop location, the periphery wall of friction pair moving plate and spring pedestal is provided with the ripple spring.
The utility model is further characterized in that:
Said friction pair moving plate and right end cap abutted surface are provided with spacer.
Said friction pair stator and spring seat join and are provided with the saucer spring between the push-plate in end, spring seat and dribbling road.
Saidly be provided with packing ring between ripple spring and the spring on the spring seat periphery wall.
Input shaft middle part, said dribbling road is provided with flange plate, is provided with curved respectively three alleys that are uniformly distributed with at the flange plate interior edge face, and steel ball is arranged in the alley.
The middle part and the tail end of the flange plate left side input shaft of said dribbling road input shaft are respectively arranged with steel ball.
The characteristics of the utility model are:
1) replaced electromagnet with the input shaft in steel ball, dribbling road push-plate and dribbling road;
2) owing to increased the ripple spring, thereby solve the reliable separation of friction pair moving plate, friction pair stator, reduced frictional loss.
The utility model be need not be automatically controlled pure machine two-way do not have return mechanism, when driving shaft has initiatively moment loading, in the normal direction movement process, because moment M initiatively
XEffect makes the steel ball climbing; The push-plate that the active moment of utilization dribbling road input shaft will be dribbled through steel ball is pushed the spring that is pressed on the friction pair open, and the pushing certain distance at first compresses little butterfly spring and abdicates the gap that friction plate separates; The ripple spring makes the gap divide equally, and guarantees the sound separation.Because ripple spring (or little spring) is arranged, in operation process, guaranteed effective separation of friction pair moving plate, friction pair stator, reduced frictional loss, improved efficient; At dereliction braking torque M
XDo the time spent, spring compresses friction pair, and output shaft is locked.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the B-B sectional view of Fig. 1.
Fig. 3 is the C-C sectional view of Fig. 2.
Fig. 4 is input shaft and push-plate relative movement schematic representation.
Force analysis figure when Fig. 5 is input shaft and push-plate relative movement.
Among the figure: 1, output shaft; 2, left end cap; 3, housing; 4, spring seat; 5, steel ball; 6, outer spacer; 7, right end cap; 8, spring collar; 9, output shaft angle bearing; 10, spring; 11, friction pair stator; 12, friction pair moving plate; 13, the push-plate in dribbling road; 14, input shaft angle bearing; 15, dribbling road input shaft; 16, saucer spring; 17, steel ball; 18, packing ring; 19, ripple spring; 20, interior spacer.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is further specified.
As shown in Figure 1, this a kind of two-way no return mechanism comprises dribbling road input shaft 15 and is set in the push-plate 13 in the dribbling road on the dribbling road input shaft 15 that the end of the push-plate 13 in dribbling road is socketed with output shaft 1; On output shaft 1, be connected with left end cap 2, on dribbling road input shaft 15, be connected with right end cap 7 through input shaft angle bearing 14 through output shaft angle bearing 9; Left end cap 2, right end cap 7 connect into a no return mechanism cavity with housing 3 (wounded in the battle keyway); Be set with friction pair moving plate 12 (circumferentially locating) in the no return mechanism cavity on the push-plate 13 (splined) in dribbling road through the spline and the push-plate 13 in dribbling road; Friction pair moving plate 12 is arranged at intervals with friction pair stator 11 (circumferentially locating through spline and housing 3); One end and the right end cap 7 of friction pair stator 11 join; The other end of friction pair stator 11 and spring seat 4 join, and spring seat 4 is provided with spring 10 (or dish spring), and spring 10 joins with the positioning table of output shaft 1; Between the friction pair stator 11 of housing 3 hoops location, the periphery wall of friction pair moving plate 12 and spring pedestal 4 is provided with ripple spring 19.
In the present embodiment, spacer 20 in friction pair moving plate 12 is provided with right end cap 7 abutted surfaces, right end cap 7 is provided with outer spacer 6 with housing 3 abutted surfaces; Be provided with spring collar 8 between left end cap 2 and the output shaft 1.
In the present embodiment, friction pair stator 11 and spring seat 4 join and are provided with saucer spring 16 between the push-plate 13 in end, spring seat 4 and dribbling road.
In the present embodiment, be provided with packing ring 18 between ripple spring 19 and the spring 10 on spring seat 4 periphery walls, packing ring 18 is used to limit the position of ripple spring 19.
As shown in Figure 2, be dribbling road input shaft 15 alley schematic cross-sections, dribbling input shaft 15 middle parts, road are provided with flange plate, are provided with three alleys of curved distribution respectively at the flange plate interior edge face, and steel ball 5 is arranged in the alley.The middle part and the tail end of the flange plate left side input shaft of dribbling road input shaft 15 are respectively arranged with steel ball 17 (seeing shown in Figure 1).
The working principle of the utility model:
1. original state: because the effect of giving pressure of spring 10; After compressing a certain amount of ripple spring 19 and saucer spring 16, will compress with the circumferential friction pair moving plate 12 of locating of the push-plate 13 usefulness splines in dribbling road with the friction pair stator 11 of the circumferential location of housing 3 usefulness splines again.Output shaft 1 is locked by friction pair.Give under the tight power effect at saucer spring 16, the push-plate 13 in dribbling road compresses steel ball 5 all the time, saucer spring 16 and the active force of ripple spring 19 active forces much smaller than spring 10, and push-plate 13 radial locations that steel ball 17 will be dribbled are seen shown in Fig. 1 structural drawing.A place installing and fixing a little among Fig. 1 for this mechanism.
2. work as dribbling road input shaft 15 at input torque M
XWhen (direction is not limit) effect was rotated down, because the push-plate 13 in dribbling road is pinned and can not rotate by friction pair, steel ball 5 was at dribbling road input shaft 15 active force F=M
X(under 3 * r) effects, the push-plate 13 of being dribbled relatively by position shown in Figure 3 turns over several angle 2raf to ÷, sees shown in Figure 4.Steel ball 5 rotation processes are climbed along alley, and the push-plate 13 in dribbling road was axially pushed away certain distance h (usually less than alley climbing height H), and the push-plate 13 in dribbling road is moved axially; Earlier saucer spring 16 is flattened, through the elastic force of the spring 10 of spring seat 4 equilibrium pressure on friction pair, again that spring 10 compressions are a certain amount of; Remove the pressure of 11 of friction pair moving plates 12, the secondary stator of static friction, make between spring seat 4 and friction plate certain interval to occur, let friction plate that Separation is arranged; Ripple spring 19 is divided equally the gap as far as possible; Let friction pair moving plate 12, the secondary stator 11 of static friction freelyr separate, thereby loss minimizing relatively, efficient improves relatively.Under the steel ball 5 on the dribbling road input shaft 15 drives; The push-plate 13 in dribbling road moves certain distance h; Compression saucer spring 16 lets friction pair moving plate 12, the secondary stator 11 of static friction separate with spring 10; Spline big on the push-plate 13 through the dribbling road drives friction pair moving plate 12, and spline drive output shaft 1 little on the push-plate 13 through the dribbling road rotates together.
3. M when dribbling road input shaft 15 no input torques
X=0, to see shown in Figure 5ly, steel ball 5 loses active force F=M
X÷ (3 * r
0)=0 ÷ (3 * r
0)=0 just loses axial force F
n=F ÷ tga=0.Spring seat 4 is got back to initial position with the push-plate 13 in dribbling road under the power effect of spring 10, with output shaft 1 locking.When positive and negative output torque all can't be rotated less than friction torque, if output shaft 1 has axial pressure, frictional force is strengthened, more can not rotate.
Should note following problems during assembling:
1, at first, depress A value when producing regulation friction torque condition with frock housing 3 guaranteeing dish spring 10 given in regulation.
B value when 2, under compressing steel ball 5 conditions, suitably compressing saucer spring 16.
3,, confirm that outer spacer 6 and interior spacer 20 values guarantee right end cap, to the pressure of giving of spring 10, guarantee that simultaneously saucer spring 16 is given pressure also to be adjacent to housing 3 right-hand members on the one hand according to the relative dimensions of A, B value product shell 3 and right end cap 7.
Claims (6)
1. a two-way no return mechanism is characterized in that, comprises dribbling road input shaft (15) and is set in the push-plate (13) in the dribbling road in dribbling road input shaft (15), and the end of the push-plate (13) in dribbling road is socketed with output shaft (1); Upward be connected with left end cap (2) at said output shaft (1), go up at dribbling road input shaft (15) and be connected with right end cap (7) through input shaft angle bearing (14) through output shaft angle bearing (9); Left end cap (2), right end cap (7) connect into a no return mechanism cavity with housing (3);
Be set with friction pair moving plate (12) on the push-plate (13) in dribbling road in the said no return mechanism cavity; Friction pair moving plate (12) is arranged at intervals with friction pair stator (11); One end of friction pair stator (11) and right end cap (7) join; The other end of friction pair stator (11) and spring seat (4) join, and spring seat (4) is provided with spring (10), and spring (10) joins with the positioning table of output shaft (1); Between the friction pair stator (11) of said housing (3) hoop location, the periphery wall of friction pair moving plate (12) and spring seat (4) is provided with ripple spring (19).
2. a kind of two-way no return mechanism according to claim 1 is characterized in that, said friction pair moving plate (12) is provided with interior spacer (20) with right end cap (7) abutted surface, and right end cap (7) is provided with outer spacer (6) with housing (3) abutted surface.
3. a kind of two-way no return mechanism according to claim 1 is characterized in that, said friction pair stator (11) and spring seat (4) join and be provided with saucer spring (16) between the push-plate (13) in end, spring seat (4) and dribbling road.
4. a kind of two-way no return mechanism according to claim 1 is characterized in that, saidly is being provided with packing ring (18) between ripple spring (19) and the spring (10) on spring seat (4) periphery wall.
5. a kind of two-way no return mechanism according to claim 1 is characterized in that, said dribbling road input shaft (15) middle part is provided with flange plate, is provided with curved respectively three alleys that are uniformly distributed with at the flange plate interior edge face, and steel ball (5) is arranged in the alley.
6. according to claim 1 or 5 described a kind of two-way no return mechanisms, it is characterized in that the middle part and the tail end of the flange plate left side input shaft of said dribbling road input shaft (15) are respectively arranged with steel ball (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203611390U CN202326814U (en) | 2011-09-23 | 2011-09-23 | Two-way no-return mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203611390U CN202326814U (en) | 2011-09-23 | 2011-09-23 | Two-way no-return mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326814U true CN202326814U (en) | 2012-07-11 |
Family
ID=46438794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203611390U Expired - Lifetime CN202326814U (en) | 2011-09-23 | 2011-09-23 | Two-way no-return mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326814U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673725A (en) * | 2016-03-02 | 2016-06-15 | 庆安集团有限公司 | Automatic clutch device with constant-power flow direction |
| CN105673726A (en) * | 2016-03-02 | 2016-06-15 | 庆安集团有限公司 | Steel ball slope-type no-return device |
| CN113775667A (en) * | 2021-09-10 | 2021-12-10 | 庆安集团有限公司 | Non-return clutch device |
| CN114893514A (en) * | 2022-05-19 | 2022-08-12 | 太重煤机有限公司 | Intelligent coaxial wet-type electromagnetic brake |
-
2011
- 2011-09-23 CN CN2011203611390U patent/CN202326814U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673725A (en) * | 2016-03-02 | 2016-06-15 | 庆安集团有限公司 | Automatic clutch device with constant-power flow direction |
| CN105673726A (en) * | 2016-03-02 | 2016-06-15 | 庆安集团有限公司 | Steel ball slope-type no-return device |
| CN105673725B (en) * | 2016-03-02 | 2018-04-03 | 庆安集团有限公司 | It is a kind of to determine power flow direction automatic clutch device |
| CN105673726B (en) * | 2016-03-02 | 2018-04-03 | 庆安集团有限公司 | A kind of steel ball ramp type is without return mechanism |
| CN113775667A (en) * | 2021-09-10 | 2021-12-10 | 庆安集团有限公司 | Non-return clutch device |
| CN114893514A (en) * | 2022-05-19 | 2022-08-12 | 太重煤机有限公司 | Intelligent coaxial wet-type electromagnetic brake |
| CN114893514B (en) * | 2022-05-19 | 2023-09-12 | 太重煤机有限公司 | Intelligent coaxial wet electromagnetic brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |