CN101092998A - Heavy overrunning clutch - Google Patents
Heavy overrunning clutch Download PDFInfo
- Publication number
- CN101092998A CN101092998A CN 200710111387 CN200710111387A CN101092998A CN 101092998 A CN101092998 A CN 101092998A CN 200710111387 CN200710111387 CN 200710111387 CN 200710111387 A CN200710111387 A CN 200710111387A CN 101092998 A CN101092998 A CN 101092998A
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- ratchet wheel
- jacking block
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Abstract
This invention discloses a gravity-centrifugal force overriding clutch including a driving claw wheel, a driven ratch sleeve, in which a connection structure connected with a drive device is set on the driving claw wheel with claws, ratches are set on the internal circle wall of the driven ratch sleeve, the claws can be jointed with the ratches acted by gravity and centrifugal force and drawn back into the profile line of the driving claw wheel and installed on it breaking joint with the ratch on the driven ratch sleeve.
Description
Technical field
The invention provides a kind of free wheel device that beam pumping unit uses.
Background technique
The U.S. has just used the spring free wheel device on beam pumping unit as far back as the fifties, but because pumping unit will open, cut out once in a jig frequency, and the jig frequency of per minute is at 6-15 time, continuous operation like this, in the not long time, spring damages because of tired.Therefore, this kind free wheel device can not be used widely.China's situ part field test had used the magnet-type free wheel device in 2000, the magnet-type clutch still has been big leap ahead compared with the spring clutch on the life-span, still, and as time passes, the magnetic of magnet can reduce gradually, thereby makes that this free wheel device is ineffective.
Summary of the invention
The objective of the invention is to improve deficiency of the prior art, provide the utilize gravity and the centrifugal force acting in conjunction of a kind of its long service life, reliable performance to realize the heavy-duty overrunning clutch that unidirectional power transmits.
The object of the present invention is achieved like this:
Heavy-duty overrunning clutch provided by the invention comprises initiatively ratchet wheel, a driven ratchet sleeve, described active ratchet wheel is provided with and the drive unit connection structure connecting, on described active ratchet wheel, be provided with bluff piece, on the inner peripheral wall of described driven ratchet sleeve, be provided with ratchet, described bluff piece can engage with the described ratchet that is provided with on the inner peripheral wall of described driven ratchet sleeve under gravity and the centrifugal action, and in the outer contour of the described active ratchet wheel of retractable with driven ratchet sleeve on ratchet be installed on the described active ratchet wheel with being disengaged.
Concrete, two optimized technical scheme can be arranged.
Scheme one is: can swingingly be connected with bluff piece around hinging shaft by hinging structure on the circumference of active ratchet wheel, the described ratchet on described bluff piece on the described active ratchet wheel and the described driven ratchet sleeve lining is complementary.
Scheme two is: be provided with sliding motion structure on the circumference of active ratchet wheel, it is the sliding channel that upwards is provided with in the footpath of active ratchet wheel, is provided with the slip bluff piece in this sliding channel, and the described ratchet on described slip bluff piece and the described driven ratchet sleeve lining is complementary.
Heavy-duty overrunning clutch provided by the invention, take in the shaft shoulder and the hole that also are provided with mutual coupling on the sidewall of active ratchet wheel and driven ratchet sleeve, is provided with ball grooves on the end face of the shaft shoulder and/or hole shoulder, and rolling element is set therein.
On two end faces of the driven ratchet sleeve of ratchet wheel initiatively that combine, be installed with sealing cover.
Have a gap between the end face of the inner side surface of described sealing cover and described active ratchet wheel, do not contact each other with assurance.
On an adjacent face of described active ratchet wheel and driven ratchet sleeve, be provided with the corresponding described shaft shoulder and hole shoulder, the shaft shoulder betwixt and/or hole shoulder are provided with described ball grooves, the described rolling element that is arranged in this ball grooves contacts with the end face of the shaft shoulder and hole shoulder, opposite side at described active ratchet wheel connects firmly a bearing cap by spiro connection structure, be provided with described ball grooves on the shoulder of the corresponding hole of this bearing cap and adjacent with it driven ratchet carriage, the described rolling element that is arranged in this ball grooves contacts with the end face that take in the convex shoulder and the hole of bearing cap.
Described ball bearing has a distance between the ratchet of described driven ratchet sleeve inner ring zigzag fashion step.
Heavy-duty overrunning clutch provided by the invention is by the overdrive clutch between gravity and centrifugal force realization active ratchet wheel and the driven ratchet sleeve, and it is simple in structure, and reliable operation, particularly life-span are all longer than spring of the prior art and magnet-type free wheel device.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is embodiment's the main sectional structure schematic representation of a kind of structure of heavy-duty overrunning clutch provided by the invention;
Fig. 2 is the side sectional structure schematic representation of heavy-duty overrunning clutch shown in Figure 1;
Fig. 1 a is embodiment's the main sectional structure schematic representation of the another kind of structure of heavy-duty overrunning clutch provided by the invention;
Fig. 1 c is for having the structural representation of the another kind of structure of spring on the very heavy jacking block among Fig. 1 a;
Fig. 2 a is the side sectional structure schematic representation of the heavy-duty overrunning clutch shown in Fig. 1 a;
Fig. 3 is the structural representation of the beam pumping unit of this heavy-duty overrunning clutch of use.
Embodiment
As shown in Figure 1, 2, among the embodiment provided by the invention, heavy-duty overrunning clutch comprise one initiatively ratchet wheel be also referred to as initiatively ratchet wheel 3, a driven ratchet sleeve, driven in the present embodiment ratchet sleeve is a Vee pulley V 1, initiatively ratchet wheel 3 is provided with and the drive unit connection structure connecting, this linkage structure is to offer a keyway axis hole, the output shaft that is provided with driving device motor 0 that mates in this keyway axis hole at the center of active ratchet wheel 3.On the circumference of active ratchet wheel 3, can be connected with bluff piece around the ground of hinging shaft swing by hinging structure, be also referred to as very heavy jacking block 2, on the inner peripheral wall of driven ratchet sleeve 1, be provided with ratchet 4, initiatively in the concentric cylindrical shell of being located at driven ratchet sleeve 1 of ratchet wheel 3, initiatively the bluff piece 2 on the ratchet wheel 3 is complementary with ratchet 10 on driven ratchet sleeve 1 inwall.
Bluff piece is also referred to as very heavy jacking block 2 here and is installed in initiatively that ratchet wheel is on the motive power wheel 3, and initiatively ratchet wheel 3 is connected on the output shaft 0 of motor by key 01 again.The working principle of this heavy-duty overrunning clutch is: when motor does not rotate, be positioned at the very heavy jacking block 2 of the lower half portion on the active ratchet wheel 3, can open automatically under the self gravitation effect, withstand the sawtooth stepped shape ratchet on Vee pulley V 1 inner ring.And when motor rotates, because the free-ended centrifugal force that acts on the very heavy jacking block 2 during high speed rotating makes jack can stay open state, and make the very heavy jacking block of not opening open, withstand the ratchet 4 on vee-pulley 1 inner ring, realize power is delivered to by motor the purpose of Vee pulley V.
As shown in Figure 3, the heavy-duty overrunning clutch in the present embodiment is applied on the drive pulley in the beam pumping unit in oil field.When the pumping unit upstroke, because spin balancing weighs the 17 anti-Vee pulley Vs 1 that drag of potential energy that quicken release, when making its rotating speed surmount the rotating speed of motor, and very heavy jacking block 2 is drawn in automatically, thereby realize the unidirectional delivery of power.
On the sidewall of active ratchet wheel 3 and Vee pulley V one side, also be provided with the shaft shoulder 31 and the hole shoulder 12 of mutual coupling, on the end face of hole shoulder 12, be provided with ball grooves, rolling element 6 is set therein.Being provided with dustproof sheet in the outer end of this side is sealing cover 5, its by screw on the side of Vee pulley V 1, and its inner side surface and initiatively have a gap a between the end face of ratchet wheel 3.On another sidewall of active ratchet wheel 3, be provided with bearing cap 6, connect firmly by being spirally connected between bearing cap 6 and the active ratchet wheel 3.Be provided with ball grooves between the hole shoulder of this bearing cap 6 and adjacent with it Vee pulley V 1, also be provided with rolling element 6 therein.Be provided with dustproof sheet 5 in the outside of bearing cap 6, similarly, it connects firmly on side, Vee pulley V 1 ground by screw, and and the end face of active ratchet wheel 3 between be provided with the gap.
On two end faces of active ratchet wheel that combines and driven ratchet sleeve, two sealing covers 5 are fixed on the end face of vee-pulley 1, on sealing cover 5, correspondingly are provided with the center hole that makes that motor output shaft stretches out by screw.
Surface friction drag when ball bearing 6 moves mutually in order to reduce active ratchet wheel and Vee pulley V is provided with.
Must consider during design:
1, the hinging shaft place of very heavy jacking block 2 rotating fixed ends is fixing reliable, and it is little to accomplish to rotate frictional resistance simultaneously, enables to draw in freely under gravity and centrifugal action or open.
Initiatively should be provided with groove 32 on the side surface of the motive power wheel 3 at the place, very heavy jacking block 2 places on the ratchet wheel 3, its shape and size are: when very heavy jacking block 2 draws in, very heavy jacking block 2 is just in time in the profile line 33 of motive power wheel, and near the interior step 34 of motive power wheel, when very heavy jacking block 2 was opened, a side 21 of very heavy jacking block 2 was near the another side 35 of motive power wheel 3.The length of the number of very heavy jacking block 2 and very heavy jacking block 2 must guarantee opening under gravity, the centrifugal action under the reliable premise, is good with quantity and the length thereof that reduces very heavy jacking block.Very heavy jacking block open direction, decide by the motor sense of rotation of on-the-spot pumping unit.
2, the length of the zigzag fashion step of vee belt belt wheel 1 inner ring must guarantee to reduce the length of step under the prerequisite that very heavy jacking block 2 can in time open.
3, the screw thread of bearing cap 8 and motive power wheel 3 links and must align, reliably.The outer end of bearing cap 6 suitably is provided with and dashes the hole, facilitates the use punching pin it is dismantled, installs.
4, dustproof sheet 5 must guarantee that the dust rainwater can not enter free wheel device inside.Be connected on the vee-pulley 1 with screw, and do not contact, to guarantee not rub motive power wheel 3 with motive power wheel 3.
5, ball bearing 6,9 has suitable distance from Vee pulley V inner ring zigzag fashion step, clings very heavy jacking block 2 to avoid butter.
Requirement of strength when 6, main stressed member must guarantee work, safety coefficient is suitably got greatly.
Shown in Fig. 1 a, 2a, among another embodiment provided by the invention, heavy-duty overrunning clutch also comprise one initiatively ratchet wheel be also referred to as motive power wheel 3, a driven ratchet sleeve, driven in the present embodiment ratchet sleeve is a Vee pulley V 1, motive power wheel 3 is provided with and the drive unit connection structure connecting, this linkage structure is to offer a keyway axis hole, the output shaft that is provided with driving device motor 0 that mates in this keyway axis hole at the center of active ratchet wheel 3.On the circumference of active ratchet wheel 3, be provided with sliding motion structure, it is the sliding channel 11 that upwards is provided with in the footpath of active ratchet wheel, in this sliding channel, be provided with slip bluff piece 2, pass through sliding motion structure, in sliding channel 11, be provided with the slip bluff piece, be also referred to as very heavy jacking block 2, on the inner peripheral wall of driven ratchet sleeve 1, be provided with ratchet 4, initiatively ratchet wheel 3 is located in the cylindrical shell of driven ratchet sleeve 1 with one heart, and initiatively bluff piece 2 on the ratchet wheel 3 and the ratchet 4 on driven ratchet sleeve 1 inwall are complementary.
Bluff piece, being also referred to as very heavy jacking block 2 here, to be installed in ratchet wheel initiatively be that motive power wheel 3 is connected on the output shaft 0 of motor by key 01 again in the slideway on the motive power wheel 3.The working principle of this heavy-duty overrunning clutch is: when motor does not rotate, be positioned at the very heavy jacking block 2 of the lower half portion on the motive power wheel 3, can skid off along slideway automatically under the self gravitation effect, withstand the sawtooth stepped shape ratchet on Vee pulley V 1 inner ring.And when motor rotates, because the centrifugal force that acts on the very heavy jacking block 2 during high speed rotating makes jack can keep withstanding the state of the sawtooth stepped shape ratchet on Vee pulley V 1 inner ring, and make the very heavy jacking block that does not skid off slideway open, withstand the ratchet 4 on vee-pulley 1 inner ring, realize power is delivered to by motor the purpose of Vee pulley V.
As shown in Figure 3, the heavy-duty overrunning clutch in the present embodiment is applied on the drive pulley in the beam pumping unit in oil field identical with embodiment 1.When the pumping unit upstroke, because spin balancing weighs the anti-Vee pulley Vs 1 that drag of potential energy that 17 acceleration discharge, when making its rotating speed surmount the rotating speed of motor, and make very heavy jacking block 2 withdrawal sliding channels automatically, draw in, thus the unidirectional delivery of realization power.
On the sidewall of motive power wheel 3 and Vee pulley V 1 one sides, also be provided with the shaft shoulder 5 and the hole shoulder 16 of mutual coupling, on the end face of hole shoulder 16, be provided with ball grooves, rolling element 6 is set therein.Being provided with dustproof sheet in the outer end of this side is sealing cover 7, and it on the side of Vee pulley V 1, and has a gap a by screw between the end face of its inner side surface and motive power wheel 3.On another sidewall of motive power wheel 3, be provided with bearing cap 8, connect firmly by being spirally connected between bearing cap 8 and the motive power wheel 3.Be provided with ball grooves between the hole shoulder of this bearing cap 8 and adjacent with it Vee pulley V 1, also be provided with rolling element 9 therein.Be provided with dustproof sheet 10 in the outside of bearing cap 8, similarly, it connects firmly on the side of Vee pulley V 1 by screw, and and the end face of motive power wheel 3 between be provided with gap a.
On two end faces of active ratchet wheel that combines and driven ratchet sleeve, two sealing covers 7,10 are fixed on the end face of vee-pulley 1, on sealing cover 7,10, correspondingly are provided with the center hole that makes that motor output shaft stretches out by screw.
The surface friction drag of ball bearing 6 and 9 in order to reduce motive power wheel and Vee pulley V and to move mutually is provided with.
Dustproof sheet the 7, the 10th prevents that dust, rainwater from entering the inner permanent proper functioning of clutch that guarantees of clutch and being provided with.
Must consider during design:
1, very heavy jacking block 2 is slidably mounted in the sliding channel, will accomplish that simultaneously sliding friction is little, enables to slip into freely or skid off under gravity and centrifugal action sliding channel.
The sliding channel that is provided with 11 of the motive power wheel 3 at the place, very heavy jacking block 2 places on the motive power wheel 3, its shape and size are: when very heavy jacking block 2 slips into slideway, very heavy jacking block 2 is just in time in the profile line 12 of motive power wheel, and near the interior step 13 of motive power wheel sliding way, when very heavy jacking block 2 front portions skid off slideway, the side 14 at the rear portion of very heavy jacking block 2 near sliding channel on the motive power wheel 3 side 15, promptly very heavy jacking block 2 can not be deviate from sliding channel fully.The length of the number of very heavy jacking block 2 and very heavy jacking block 2 must guarantee opening under gravity, the centrifugal action under the reliable premise, can both make the clutch proper functioning safely and unlikely damage when wherein any one very heavy jacking block works independently.The stress surface of very heavy jacking block is decided by the motor sense of rotation of on-the-spot pumping unit.
2, the length of the zigzag fashion step of vee belt belt wheel 1 inner ring must guarantee to reduce the length of step under the prerequisite that very heavy jacking block 2 can in time open.
3, the screw thread of bearing cap 8 and motive power wheel 3 links and must align, reliably.The outer end of bearing cap 8 suitably is provided with and dashes the hole, facilitates the use punching pin it is dismantled, installs.
4, dustproof sheet 7,10 must guarantee that the dust rainwater can not enter free wheel device inside.Be connected on the vee-pulley 1 with screw, and do not contact, to guarantee not rub motive power wheel 3 with motive power wheel 3.
5, ball bearing 6,9 has suitable distance from Vee pulley V inner ring zigzag fashion step, enters in very heavy jacking block 2 slideways to avoid butter.
Requirement of strength when 6, main stressed member must guarantee work, safety coefficient is suitably got greatly.
7,, can between very heavy jacking block 2 and sliding channel 11, increase spring 18 is set, shown in Fig. 1 c, so that very heavy jacking block can be opened immediately when motor speed under the big situation of lower or frictional resistance.
Driving link and the clutch between the driven member that heavy-duty overrunning clutch provided by the invention can also be used for having relatively the various structures of different rotating speeds connect.
When motor drives was made circular movement, the force analysis on the very heavy jacking block was as follows about the very heavy jacking block of heavy-duty overrunning clutch:
As shown in Figure 1, when very heavy jacking block ran to the circumference peak, the power that act on the very heavy jacking block this moment had self gravitation, and direction also has centrifugal force vertically downward, and direction vertically upward.As can be known, gravity is the unfavorable factor that stops very heavy jacking block to be opened at this point, and any position of circumference acts on the centrifugal force on the very heavy jacking block, direction always straight outwardly, therefore, centrifugal force is always opened the power of very heavy jacking block.
By deriving, the ratio that can obtain acting on centrifugal force and gravity on the very heavy jacking block is:
Analyze above-mentioned formula, as can be known: force rate is directly proportional with the radius of very heavy jacking block circular movement, with square being directly proportional of motor speed.Force rate is big more, and the power of opening very heavy jacking block is big more.
Look into " oil recovery technique handbook the 4th fascicle table 1-18 motor technology standard, the motor speed that various pumping unit uses is in 490-1400 rev/min scope; Look into handbook table 1-14 Fuliang formula pumping unit technical specification again, the motor pulley diameter of various pumping unit when different strokes per minute is in the scope of 102-560 millimeter.Get least favorable and open the parameter of very heavy jacking block and carry out the calculating of force rate, get the motor of minimum speed, promptly the rotating speed of motor is 490 rev/mins; Get minimum motor pulley diameter and equal 102 millimeters, button goes the parts that account for such as v belt, and the circular motion radius of very heavy jacking block is 0.033 meter.
The above-mentioned above-mentioned formula of parameter substitution of opening very heavy jacking block that is most disadvantageous in is got:
Aforementioned calculation is that parameter that very heavy jacking block is opened in overall being most disadvantageous in of all pumping units of getting is carried out force rate and calculated, and under above-mentioned worst force rate (promptly 8.54 times), when heavy-duty overrunning clutch was worked, the power of opening very heavy jacking block was enough.And know that the power of opening very heavy jacking block is not become with the growth of pumping unit operating time, and spring and magnetic type free wheel device to open the power of very heavy jacking block be to reduce gradually with the growth of operating time, the ability of finally losing the job.Thus, can further prove heavy-duty overrunning clutch provided by the invention superior part compared with prior art.
Claims (10)
1, a kind of heavy-duty overrunning clutch, it is characterized in that: comprise initiatively ratchet wheel, a driven ratchet sleeve, described active ratchet wheel is provided with and the drive unit connection structure connecting, on described active ratchet wheel, be provided with bluff piece, on the inner peripheral wall of described driven ratchet sleeve, be provided with ratchet, described bluff piece can engage with the described ratchet that is provided with on the inner peripheral wall of described driven ratchet sleeve under gravity and the centrifugal action, and in the outer contour of the described active ratchet wheel of retractable and be installed on the described active ratchet wheel with ratchet on the driven ratchet sleeve with being disengaged.
2, heavy-duty overrunning clutch according to claim 1, it is characterized in that: can swingingly be connected with bluff piece around hinging shaft by hinging structure on the circumference of described active ratchet wheel, the described ratchet on described bluff piece on the described active ratchet wheel and the described driven ratchet sleeve lining is complementary.
3, heavy-duty overrunning clutch according to claim 1, it is characterized in that: on the circumference of described active ratchet wheel, be provided with sliding motion structure, it is the sliding channel that upwards is provided with in the footpath of active ratchet wheel, be provided with the slip bluff piece in this sliding channel, the described ratchet on described slip bluff piece and the described driven ratchet sleeve lining is complementary.
4, heavy-duty overrunning clutch according to claim 2, it is characterized in that: the side surface of the active ratchet wheel at the place, bluff piece place on the described active ratchet wheel is provided with groove, its shape and size are: when described bluff piece draws in, it is just in time in the profile line of active ratchet wheel, and near the interior step of active ratchet wheel, when bluff piece was opened, the one side was near a side of active ratchet wheel.
5, heavy-duty overrunning clutch according to claim 3, it is characterized in that: the described bluff piece on the described active ratchet wheel is the described sliding channel that is provided with on the active ratchet wheel at place, very heavy jacking block place, its shape and size are: when very heavy jacking block slips into sliding channel, very heavy jacking block is just in time in the outer contour of active ratchet wheel, and near the interior step of sliding channel on the active ratchet wheel, when very heavy jacking block front portion skids off slideway and ratchet that the inner peripheral wall of described driven ratchet sleeve is provided with engages, the side at the rear portion of very heavy jacking block is near the side of sliding channel on the active ratchet wheel, and promptly very heavy jacking block can not be deviate from sliding channel fully; Perhaps,
Described bluff piece on the described active ratchet wheel is the described sliding channel that is provided with on the active ratchet wheel at place, very heavy jacking block place, its shape and size are: when very heavy jacking block slips into sliding channel, very heavy jacking block is just in time in the outer contour of active ratchet wheel, and near the interior step of sliding channel on the active ratchet wheel, when very heavy jacking block front portion skids off slideway and ratchet that the inner peripheral wall of described driven ratchet sleeve is provided with engages, the side at the rear portion of very heavy jacking block is near the side of sliding channel on the active ratchet wheel, and promptly very heavy jacking block can not be deviate from sliding channel fully; Between very heavy jacking block and sliding channel, increase spring is set.
6, according to one of them described heavy-duty overrunning clutch of claim 1 to 4, it is characterized in that: the shaft shoulder and the hole shoulder that on the sidewall of described active ratchet wheel and driven ratchet sleeve, also are provided with mutual coupling, on the end face of the shaft shoulder and/or hole shoulder, be provided with ball grooves, rolling element is set therein.
7, according to one of them described heavy-duty overrunning clutch of claim 1 to 4, it is characterized in that: on two end faces of active ratchet wheel that combines and driven ratchet sleeve, be provided with sealing cover.
8, heavy-duty overrunning clutch according to claim 7 is characterized in that: have a gap between the end face of the inner side surface of described sealing cover and described active ratchet wheel, do not contact each other with assurance.
9, according to claim 7 or 8 described heavy-duty overrunning clutch, it is characterized in that: on an adjacent face of described active ratchet wheel and driven ratchet sleeve, be provided with the corresponding described shaft shoulder and hole shoulder, the shaft shoulder betwixt and/or hole shoulder are provided with described ball grooves, the described rolling element that is arranged in this ball grooves contacts with the end face of the shaft shoulder and hole shoulder, opposite side at described active ratchet wheel connects firmly a bearing cap by spiro connection structure, be provided with described ball grooves on the shoulder of the corresponding hole of this bearing cap and adjacent with it driven ratchet carriage, the described rolling element that is arranged in this ball grooves contacts with the end face that take in the convex shoulder and the hole of bearing cap.
10, heavy-duty overrunning clutch according to claim 9 is characterized in that: have a distance between the ratchet of described ball bearing and described driven ratchet sleeve inner ring zigzag fashion step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710111387 CN101092998A (en) | 2006-06-21 | 2007-06-19 | Heavy overrunning clutch |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610086857.5 | 2006-06-21 | ||
| CN 200610086857 CN1873249A (en) | 2006-06-21 | 2006-06-21 | Heavy-duty overrunning clutch |
| CN 200710111387 CN101092998A (en) | 2006-06-21 | 2007-06-19 | Heavy overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101092998A true CN101092998A (en) | 2007-12-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710111387 Pending CN101092998A (en) | 2006-06-21 | 2007-06-19 | Heavy overrunning clutch |
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| Country | Link |
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| CN (1) | CN101092998A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708689B (en) * | 2009-10-31 | 2013-08-21 | 陈巧青 | Sliding block unidirectional control device of automobile energy-saving sliding device |
| CN108662035A (en) * | 2018-07-25 | 2018-10-16 | 北京电子工程总体研究所 | A kind of mono-directional overrun clutch |
| CN108925525A (en) * | 2018-07-25 | 2018-12-04 | 那艳龙 | A kind of mountain forest river bank is camped with summer mosquito traping and killing equipment |
| CN109099074A (en) * | 2018-09-25 | 2018-12-28 | 彭力 | Equipment with freewheel clutch |
-
2007
- 2007-06-19 CN CN 200710111387 patent/CN101092998A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708689B (en) * | 2009-10-31 | 2013-08-21 | 陈巧青 | Sliding block unidirectional control device of automobile energy-saving sliding device |
| CN108662035A (en) * | 2018-07-25 | 2018-10-16 | 北京电子工程总体研究所 | A kind of mono-directional overrun clutch |
| CN108925525A (en) * | 2018-07-25 | 2018-12-04 | 那艳龙 | A kind of mountain forest river bank is camped with summer mosquito traping and killing equipment |
| CN108925525B (en) * | 2018-07-25 | 2021-03-05 | 佛山市顺德区民益环保服务有限公司 | Summer mosquito trapping and killing equipment for mountain forest river side camping |
| CN109099074A (en) * | 2018-09-25 | 2018-12-28 | 彭力 | Equipment with freewheel clutch |
| CN109099074B (en) * | 2018-09-25 | 2020-01-24 | 江苏通微电机科技有限公司 | Device with overrunning clutch |
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