CN204592192U - A kind of manual cam mechanism in rotary moving - Google Patents
A kind of manual cam mechanism in rotary moving Download PDFInfo
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- CN204592192U CN204592192U CN201520222514.1U CN201520222514U CN204592192U CN 204592192 U CN204592192 U CN 204592192U CN 201520222514 U CN201520222514 U CN 201520222514U CN 204592192 U CN204592192 U CN 204592192U
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Abstract
The utility model discloses a kind of manual cam mechanism in rotary moving, comprise and mutually be socketed and be cam canister (1) and the holding cylinder (2) of slight interference cooperation, can carry out between cam canister (1) and holding cylinder (2) relative rotating freely movement; Described cam canister (1) is deformable plastic thin-wall parts; Also comprise the curvilinear groove (4) of pin (3) and restriction cam canister (1) and holding cylinder (2) relative movement orbit.The manual cam of the one that the utility model provides mechanism in rotary moving, the cam canister of plastic thin-wall parts (1) is utilized to have the feature of larger Young's modulus, when cam canister (1) is socketed with holding cylinder (2), self-adaptative adjustment coordinates to slight interference, be aided with pin (3) to coordinate with the slight interference of curvilinear groove (4), and then do not improve or suitably reduce and also can ensure Smaller load self-locking and good operating handle to the requirement of machining accuracy, effective production control cost.
Description
Technical field
The utility model relates to the executive component of telescopic adjustment, specifically refers to a kind of manual cam mechanism in rotary moving.
Background technique
Operator depend on feel when controlling manual mechanism in rotary moving, therefore higher to the requirement of operating handle when use manual operating device or mechanism.Between moving member and fixed component, be interference fit and magnitude of interference is excessive time, increase operating force and be unfavorable for that the Smooth Rotation of moving member moves; When being Spielpassung between moving member and fixed component, the Smaller load self-locking in process in rotary moving cannot being realized, also cannot eliminate backlash phenomenon; Between moving member with fixed component for slight interference coordinate time, magnitude of interference is less and minimum interference amount is zero, certain inertial forces is there is in the relative movement of now moving member and fixed component, externally applied forces exceedes inertial forces, and then the two carries out relative in rotary moving, externally applied forces does not exceed inertial forces then the two self-locking, and now operating handle is best.Mostly be by improving constantly machining accuracy to pursue best feel in prior art, but the raising of required precision is unfavorable for production control cost.Therefore, need to propose a kind of manual cam mechanism in rotary moving, reduce and also can ensure Smaller load self-locking and good operating handle to the requirement of machining accuracy, effective production control cost.
Model utility content
The purpose of this utility model is to provide a kind of manual cam mechanism in rotary moving, reduces and also can ensure Smaller load self-locking and good operating handle to the requirement of machining accuracy, effective production control cost.
The utility model is achieved through the following technical solutions: a kind of manual cam mechanism in rotary moving, comprises mutually be socketed and being cam canister and the holding cylinder of slight interference cooperation, can carry out relative rotating freely movement between cam canister and holding cylinder; Described cam canister is deformable plastic thin-wall parts.
The utility model cam cylinder is mutually socketed with holding cylinder and forms slight interference and coordinates, therefore there is stress between the barrel of cam canister and the barrel of holding cylinder, stress makes to produce inertial forces when cam canister and holding cylinder generation relative movement, and this inertial forces is for realizing Smaller load self-locking and comfortable operating handle.On the other hand, cam canister is the plastic thin-wall parts that Young's modulus is larger, the feature of easy resiliently deformable when utilizing plastic thin-wall parts to be subject to external force, the magnitude of interference self-adaptative adjustment that slight interference is coordinated, and then do not improve or suitably reduce and also can realize cam canister to the requirement of machining accuracy and coordinate with the slight interference of holding cylinder.
Described cam canister and holding cylinder are mutually socketed and form slight interference and coordinate, and manual rotation cam canister or holding cylinder are to apply external force, and external force overcomes the inertial forces that cam canister and holding cylinder relative movement produce, and realizes the relative movement of cam canister and holding cylinder; External force is less than the inertial forces that cam canister and holding cylinder relative movement produce, and realizes the self-locking of mechanism.Cam canister can be straight line vertically relative to the movement locus of holding cylinder, can be the curve circumferentially rotated, and also can be at axial, that circumference is all important arbitrary curve.If movement locus is straight line vertically, cam canister is relative to holding cylinder linear telescopic; If movement locus is the curve circumferentially rotated, cam canister rotates relative to holding cylinder; If movement locus is that cam canister is relative to holding cylinder precession or back-out at axial, that circumference is all important arbitrary curve.On the other hand, cam canister and holding cylinder are that slight interference coordinates, and the inertial forces produced when less both the events of magnitude of interference are relatively in rotary moving is less, now needs externally applied forces to be of moderate size.Need externally applied forces to be presented as operating handle, when hand rotation cam canister or holding cylinder, the two Smooth Rotation moves and can realize Smaller load self-locking at an arbitrary position, eliminates backlash phenomenon, also possesses comfortable operating handle.
Described thin-wall part refers to that maximum diameter is less than or equal to the tubular construction of 15 with the ratio of individual layer wall thickness, and thin-wall part mainly comprises single thin layer wall pieces, double-layer thin wall part.Described cam canister and the socket mode of holding cylinder have overcoat, inner sleeve, outer nested, the various ways such as to be nested with: jacket structure refers to that cam canister is single thin layer wall pieces and cam canister is coated at holding cylinder; Interior nested structure refers to that cam canister is single thin layer wall pieces and is placed on holding cylinder in cam canister; Outer nested structure refers to that the cam canister of individual layer barrel is nested between the double-deck barrel of holding cylinder; Be nested with structure and refer to that the holding cylinder of individual layer barrel is nested between the double-deck barrel of cam canister.Described outer nested or be nested with structure cam cylinder and have at least place's slight interference to coordinate with holding cylinder.Structure that is nested, that be nested with is comparatively complicated outward, and overcoat, interior nested structure are simple and can meet stability of a system requirement, therefore preferably overcoat or interior nested structure.The mode of socket can be selected according to actual needs, as: telescopical lens barrel is interior nested structure preferably.Cam canister and holding cylinder be socketed with various ways but the identical and structural similarity of principle, therefore be hereafter only described in detail for overcoat, interior nested structure, other socket modes repeat no more.
When described cam canister and holding cylinder are socketed, the contacting side of cam canister is the first cylinder, and the contacting side of holding cylinder is the second cylinder.Because cam canister is plastic thin-wall parts and cam canister coordinates with holding cylinder slight interference, so the surface of contact of the first cylinder and the second cylinder interacts.First cylinder or the second cylinder can be smooth cylinders, can be the projection faces arranging protuberance, also can be the recessed cylinders arranging recess; The contact of the first cylinder and the second cylinder can be the contact of two smooth cylinders, can be the protuberance outer surface in projection face and the contact of smooth cylinder, can be the outer surface of recessed cylinder and the contact of smooth cylinder, also can be the contact of corresponding recess in the protuberance in projection face and recessed cylinder.Any one way of contact is all the resiliently deformables utilizing cam canister, makes cam canister and level and smooth in rotary moving of holding cylinder and provides comfortable operating handle.
Described slight interference cooperation refers to the interference fit that magnitude of interference is less, and maximum interference amount is 0.1mm, and minimum interference amount is 0mm.Described cam canister, holding cylinder are processed separately, carry out socket assembling again and form slight interference cooperation after machining.Magnitude of interference when cam canister, holding cylinder independence is theoretical magnitude of interference, and the magnitude of interference during socket of cam canister, holding cylinder is actual magnitude of interference, and the requirement that the actual magnitude of interference after socket meets slight interference cooperation can meet whole mechanism performance requirement.Described cam canister is the plastic thin-wall parts that Young's modulus is large, and the resiliently deformable that during socket, cam canister can occur to stretch or shrink is to adapt to assembling mode: during jacket structure, the barrel of cam canister is stretched, and magnitude of interference reduces; During interior nested structure, the barrel of cam canister is compressed, and magnitude of interference reduces.The structure of plastic thin-wall parts makes theoretical magnitude of interference be greater than actual magnitude of interference, and when therefore actual production machining cam cylinder or holding cylinder, suitable reduction machining accuracy also can realize cam canister and coordinate with the slight interference of holding cylinder.Reduce machining accuracy, be both conducive to enhancing productivity, be conducive to again reducing cost of production.
Further, the pin formed with the portion of being fixedly connected with primarily of groove joint is also comprised; Described groove joint and cam canister are slidably connected, and the portion that is fixedly connected with is fixedly connected with holding cylinder.
Described pin is fixed relative to holding cylinder: the fixing then cam canister of holding cylinder relative to pin or holding cylinder in rotary moving, and then realize precession or the back-out of cam canister; Cam canister is fixing, and then pin is in rotary moving relative to cam canister together with holding cylinder, and then realizes precession or the back-out of holding cylinder.
Described pin is equivalent to be arranged on the protuberance on the second cylinder, first cylinder of cam canister can arrange the groove being equivalent to recess or the boss being equivalent to protuberance, cam canister is moved along the track of groove or boss, and then limits the relative movement orbit of cam canister and holding cylinder.Described first cylinder also can be smooth cylinder, pin contacts the area of contact that can reduce cam canister and holding cylinder with the first cylinder, when between cam canister and holding cylinder, magnitude of interference is certain, regulate area of contact also can regulate two-way interaction's power, thus be convenient to adjust rotation dynamics to the comparatively comfortable scope of operating handle.
The reasonable working of plastics of the preferred selflubricating of described pin, makes being slidably connected of cam canister and pin more steadily smooth.
Further, the barrel of described cam canister is provided with curvilinear groove, the groove joint of pin to be connected in curvilinear groove and to form slight interference with curvilinear groove and coordinates.
Limited the track of cam canister and holding cylinder relative movement by the connection of pin and curvilinear groove in the utility model, cam canister is relevant with the structure of curvilinear groove to the track of holding cylinder relative movement, being slidably connected of pin and curvilinear groove, can realize step-less adjustment or gear regulates.On the other hand, due to the part that curvilinear groove is cam canister, so also easily there is resiliently deformable under external force in the cell wall of curvilinear groove, and the groove joint of pin to be stuck in curvilinear groove and to form slight interference with curvilinear groove and coordinates, after the cell wall generation resiliently deformable of curvilinear groove, active force is applied to the groove joint of pin, realize Smaller load self-locking, eliminate backlash phenomenon.Cam canister coordinates with holding cylinder slight interference and realizes Smaller load self-locking and comfortable operation feel, curvilinear groove coordinates with pin slight interference and realizes Smaller load self-locking and comfortable operation feel, both principles are identical, realizing complementing each other in Smaller load self-locking and comfortable operation feel.
Described curvilinear groove can be groove, also can be the groove at the bottom of reserved slit.Described curvilinear groove can be independently cell body, also can be the cell body of end-to-end.Described curvilinear groove can seamlessly transit, and also can comprise multiple pars convoluta.
Further, described curvilinear groove comprises conduit and is arranged on the gear protuberance on conduit, and conduit, gear protuberance coordinate with the groove joint slight interference of pin respectively, and the magnitude of interference of conduit and groove joint is greater than the magnitude of interference of gear protuberance and groove joint.
The gear that described gear protuberance is used for when cam canister rotates relative to holding cylinder regulates.Because the diameter of gear protuberance is larger than the width of conduit, the magnitude of interference of conduit and groove joint is greater than the magnitude of interference of gear protuberance and groove joint, so when pin enters gear protuberance from conduit or enters conduit from gear protuberance, the change of the Interaction Force of pin and curvilinear groove is presented as the feel of manipulation, makes operator experience the change of gear.
Further, the holding cylinder annex of auxiliary positioning is also comprised; Described holding cylinder annex is flexible positioning piece or non-resilient locating piece.
Described holding cylinder annex is used for auxiliary positioning, and when especially the surface of contact of cam canister and holding cylinder is less, auxiliary cam cylinder and the coaxial socket of holding cylinder, guarantee stability when cam canister is in rotary moving relative to holding cylinder.
Further, described flexible positioning piece is O shape rubber ring, and O shape rubber ring sleeve is connected between cam canister and holding cylinder.
In the utility model, cam canister is coated at holding cylinder, then O shape rubber ring sleeve is connected in holding cylinder, and auxiliary cam cylinder is in rotary moving coaxial with holding cylinder all the time on the one hand, carries out auxiliary positioning when can also move to distalmost end or most proximal end to cam canister on the other hand.
Further, described non-resilient locating piece is screw, and the quantity of screw is two or more; Described screw distributes along the circumference etc. of holding cylinder.
One end of described screw and holding cylinder are twisted and are connect, and the other end of screw is connected with cam canister, regulated make cam canister coaxial with holding cylinder by screw.In the utility model, plural screw can be distributed in the same circumference of holding cylinder, also can be distributed in the difference circumference of holding cylinder.Preferred plural screw is distributed in the same circumference of holding cylinder, convenient adjustment and processing.When the quantity of screw is two, two bolt axis are symmetricly set in the circumference of holding cylinder; When the quantity of screw is three, 120 °, adjacent screw interval is arranged in the circumference of holding cylinder; When the quantity of screw is four, 90 °, adjacent screw interval is arranged in the circumference of holding cylinder; By that analogy.The quantity of the preferred screw of the utility model is three, and the structure of three screws simply and easily regulate.
Described screw can select identical structure with pin, is convenient to simplification and the standardization of component, and then effectively controls cost.
Further, described curvilinear groove is curved, and one end is near the bottom of holding cylinder, and the other end is away from the bottom of holding cylinder; The quantity of described gear protuberance is N+1, and conduit is divided into N number of pilot trench road by N+1 the gear protuberance be arranged on conduit, and N is positive integer.
Described curvilinear groove is curved, one end near the bottom of holding cylinder and the other end away from the bottom of holding cylinder, curvilinear groove one end bottom holding cylinder is near-end, and curvilinear groove one end bottom holding cylinder is far-end, and pin moves to near-end then cam canister precession holding cylinder; Pin moves to far-end then cam canister back-out holding cylinder.The arc curve groove that preferred stage casing seamlessly transits, arc is a part for cam canister oblique section profile line.Described arc can be dextrorotation also can be upwards that dextrorotation declines, and pin curvilinear groove arcuately rises gently or declines gently, and realize the cam canister back-out smooth relative to holding cylinder or precession, concrete structure can be selected according to actual conditions.
In the utility model, curvilinear groove is divided into N section by N+1 gear protuberance: if N=1, then two gear protuberances are separately positioned on near-end and the far-end of curvilinear groove; If N=2, then three gear protuberances are separately positioned on any place of the near-end of curvilinear groove, far-end and centre; If N=3, then four gear protuberances are separately positioned on any two places of the near-end of curvilinear groove, far-end and centre; By that analogy.Curvilinear groove is divided into N section by preferred N+1 gear protuberance, and back-out amount or the precession amount of the corresponding cam canister of adjacent two gear protuberances are equal: if N=1, then two gear protuberances are separately positioned on near-end and the far-end of curvilinear groove; If N=2, then three gear protuberances are separately positioned on the near-end of curvilinear groove, far-end and mid point; If N=3, then four gear protuberances are separately positioned on the near-end of curvilinear groove, far-end and trisection point; By that analogy.
Further, the quantity of described curvilinear groove is two or more; Described curvilinear groove along cam canister circumference in the same way and equidistantly distribute.
The quantity of described curvilinear groove is two or more and is conducive to the stable of structure along the circumferential decile of cam canister.A corresponding curvilinear groove of pin, curvilinear groove is provided with the interference being beneficial to and avoiding movement locus in the same way.Preferably three curvilinear grooves are in the same way and along the circumferential decile of cam canister.
Further, described cam canister is coated at holding cylinder and the diameter in the portion that is fixedly connected with of pin is more than or equal to the diameter of groove joint; Or, be placed on holding cylinder in cam canister and the diameter of the groove joint of pin is more than or equal to the diameter in the portion of being fixedly connected with.
When described cam canister is coated at holding cylinder, the diameter in the portion that is fixedly connected with of pin is more than or equal to the diameter of groove joint; When being placed on holding cylinder in cam canister, the diameter of the groove joint of pin is more than or equal to the diameter in the portion of being fixedly connected with, and this structure is to ensure that pin is greater than abaxial one end near one end of axle, prevents slippage or the loss of pin.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) cam canister in the utility model and holding cylinder are the socket that coordinates of slight interference and cam canister is plastic thin-wall parts, utilize plastic thin-wall parts Young's modulus large, by the feature of the easy resiliently deformable of external force, reduce the requirement to machining accuracy, also can realize Smaller load self-locking and comfortable operating handle.
(2) curvilinear groove and the pin of slight interference cooperation are set in the utility model, utilize the slip of pin in curvilinear groove to limit the movement locus of cam canister relative to holding cylinder, utilize the feature of the cell wall elastically deformable of curvilinear groove to reduce further the requirement of machining accuracy simultaneously and ensure the realization of Smaller load self-locking and comfortable feel.
(3) set up gear protuberance in the utility model, meet Smaller load self-locking and gear control simultaneously.
Accompanying drawing explanation
Structural representation when Fig. 1 a is the utility model employing jacket structure.
Positive view when Fig. 1 b is the utility model employing jacket structure.
Structural representation when Fig. 2 a is nested structure in the utility model adopts.
Positive view when Fig. 2 b is nested structure in the utility model adopts.
Structural representation when Fig. 3 a is the utility model employing outer nested structure.
Positive view when Fig. 3 b is the utility model employing outer nested structure.
Fig. 4 a is the structural representation that the utility model adopts when being nested with structure.
Fig. 4 b is the positive view that the utility model adopts when being nested with structure.
When Fig. 5 is the utility model employing jacket structure, the surface of contact of the first cylinder and the second cylinder is the sectional view of smooth cylinder.
Fig. 6 a be the utility model when adopting jacket structure the first cylinder be smooth cylinder and the second cylinder is the sectional view in projection face.
Fig. 6 b be the utility model when adopting jacket structure the first cylinder be projection face and the second cylinder is the sectional view of smooth cylinder.
Fig. 7 a be the utility model when adopting jacket structure the first cylinder be recessed cylinder and the second cylinder is the sectional view of smooth cylinder.
Fig. 7 b be the utility model when adopting jacket structure the first cylinder be smooth cylinder and the second cylinder is the sectional view of recessed cylinder.
Fig. 8 a be the utility model when adopting jacket structure the first cylinder be recessed cylinder and the second cylinder is the sectional view in projection face.
Fig. 8 b be the utility model when adopting jacket structure the first cylinder be projection face and the second cylinder is the sectional view of recessed cylinder.
Sectional view when Fig. 9 is the utility model employing jacket structure and arranges pin.
Sectional view when Figure 10 is the interior nested structure of the utility model employing and arranges O shape rubber ring.
Sectional view when Figure 11 is the interior nested structure of the utility model employing and arranges screw.
When Figure 12 is nested structure in the utility model adopts, cam canister arranges the structural representation of waveform curvilinear groove.
Figure 13 a be cam canister a curvilinear groove on the structural representation of two gear protuberances is set.
Figure 13 b is the structural representation that first-class point of the curvilinear groove of cam canister arranges three gear protuberances.
Figure 13 c is the structural representation that first-class point of the curvilinear groove of cam canister arranges four gear protuberances.
Figure 14 is that on cam canister three curvilinear grooves are in the same way but the structural representation of unequally distributed blades.
Figure 15 is that on cam canister three curvilinear grooves are in the same way and the structural representation be equally spaced.
When Figure 16 a is nested structure in the utility model adopts, cam canister screws out schematic diagram to most amphi position relative to holding cylinder.
When Figure 16 b is nested structure in the utility model adopts, cam canister screws out positive view to most amphi position relative to holding cylinder.
Wherein: 1-cam canister, the 11-the first cylinder, 2-holding cylinder, the 21-the second cylinder, 3-pin, 31-groove joint, 32-fixed connecting plate, 4-curvilinear groove, 41-conduit, 42-gear protuberance, 51-O shape rubber ring, 52-screw.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but mode of execution of the present utility model is not limited thereto.
Embodiment 1:
The manual cam of the one mechanism in rotary moving of the present embodiment, mainly be achieved through the following technical solutions: a kind of manual cam mechanism in rotary moving, comprise the cam canister 1 for plastic thin-wall parts and holding cylinder 2, cam canister 1 and holding cylinder 2 are mutually socketed and form slight interference and coordinate, the surface of contact of cam canister 1 and holding cylinder 2 interacts and produces inertial forces, and external force cam canister 1 or holding cylinder 2 being applied to overcome to inertial forces can make the relative movement such as cam canister 1 and holding cylinder 2 are moved, rotation.Cam canister 1 is the plastic thin-wall parts of easy resiliently deformable, produces resiliently deformable when being socketed with holding cylinder 2 because slight interference coordinates the internal stress that produces, and the magnitude of interference after utilizing this feature that cam canister 1 and holding cylinder 2 can be made to be socketed produces self-adaptative adjustment.Therefore, when requiring operating handle identical, the requirement to machining accuracy can be reduced.
Described cam canister 1 and the socket mode of holding cylinder 2 have overcoat, inner sleeve, outer nested, the various ways such as to be nested with: jacket structure as shown in Figure 1 a, 1 b, cam canister 1 is for single thin layer wall pieces and cam canister 1 is coated at holding cylinder 2; Nested structure in as shown in Fig. 2 a, Fig. 2 b, cam canister 1 is single thin layer wall pieces and is placed on holding cylinder 2 in cam canister 1; Outer nested structure as shown in Figure 3 a, 3 b, the cam canister 1 of individual layer barrel is nested between the double-deck barrel of holding cylinder 2; As shown in Fig. 4 a, Fig. 4 b, be nested with structure, the holding cylinder 2 of individual layer barrel is nested between the double-deck barrel of cam canister 1.Structure that is nested, that be nested with is comparatively complicated outward, and overcoat, interior nested structure are simple and can meet stability of a system requirement, therefore preferably overcoat or interior nested structure.The mode of socket can be selected according to actual needs, as: telescopical lens barrel is interior nested structure preferably.When described cam canister 1 is socketed with holding cylinder 2, the contacting side of cam canister 1 is the first cylinder 11, and the contacting side of holding cylinder 2 is the second cylinder 21.
Embodiment 2:
The present embodiment does further optimization on the basis of embodiment 1, if the surface of contact of the first cylinder 11 and the second cylinder 21 is smooth cylinder.As shown in Figure 5, during the utility model employing jacket structure, the surface of contact of the first cylinder 11 and the second cylinder 21 is smooth cylinder.Now, cam canister 1 relative to the movement locus of holding cylinder 2 be straight line vertically or the curve circumferentially rotated or axially, all important arbitrary curve of circumference.In the utility model adopts, nested structure is identical with adopting the principle of jacket structure, therefore repeats no more.
If the contact of the first cylinder 11 and the second cylinder 21 is contacts of smooth cylinder and protuberance outer surface: as shown in Figure 6 a, the utility model adopt jacket structure time the first cylinder 11 be smooth cylinder and the second cylinder 21 for arranging the projection face of protuberance; Or, as shown in Figure 6 b, when the utility model adopts jacket structure the surface of contact of the first cylinder 11 be arrange protuberance projection face and the second cylinder 21 is smooth cylinder.In the utility model adopts, nested structure is identical with adopting the principle of jacket structure, therefore repeats no more.
If the contact of the first cylinder 11 and the second cylinder 21 is smooth cylinders and the contact being provided with recess cylinder: as shown in Figure 7a, when the utility model adopts jacket structure, the first cylinder 11 is for arranging the recessed cylinder of recess and the second cylinder 21 is smooth cylinder; Or, as shown in Figure 7b, the utility model adopt jacket structure time the first cylinder 11 be smooth cylinder and the second cylinder 21 for arranging the recessed cylinder of recess.In the utility model adopts, nested structure is identical with adopting the principle of jacket structure, therefore repeats no more.
If the contact of the first cylinder 11 and the second cylinder 21 is contacts of protuberance and corresponding recess: as shown in Figure 8 a, when the utility model adopts jacket structure, the first cylinder 11 is provided with recess and the second cylinder 21 is provided with corresponding protuberance; Or as shown in Figure 8 b, when the utility model adopts jacket structure, the first cylinder 11 is provided with protuberance and the second cylinder 21 is provided with corresponding recess.In the utility model adopts, nested structure is identical with adopting the principle of jacket structure, therefore repeats no more.
Other parts of the present embodiment are identical with embodiment 1, therefore repeat no more.
Embodiment 3:
The present embodiment does further optimization on the basis of embodiment 1, and further, a kind of manual cam mechanism in rotary moving, also comprises primarily of groove joint 31 and the pin 3 being fixedly connected with portion 32 composition; Described groove joint 31 is slidably connected with cam canister 1, is fixedly connected with portion 32 and is fixedly connected with holding cylinder 2.As shown in Figure 9, the utility model adopts jacket structure and sectional view when arranging pin 3, pin 3 for being arranged on the protuberance of the second cylinder 21, the first cylinder 11 for smooth cylinder and smooth cylinder contact with pin 3.In the utility model adopts, nested structure is identical with adopting the principle of jacket structure, therefore repeats no more.Other parts of the present embodiment are identical with embodiment 1, therefore repeat no more.
Embodiment 4:
The present embodiment does further optimization on the basis of embodiment 3, further, the barrel of described cam canister 1 is provided with curvilinear groove 4, and the groove joint 31 of pin 3 to be connected in curvilinear groove 4 and to form slight interference with curvilinear groove 4 and coordinates.Described curvilinear groove 4 is for being arranged on the recess of the first cylinder 11, and the groove joint 31 of pin 3 is connected in curvilinear groove 4 and also can slides in curvilinear groove 4.As shown in Fig. 1 a, Fig. 1 b, Fig. 2 a, Fig. 2 b, other parts of the present embodiment are identical with embodiment 3, therefore repeat no more.
Embodiment 5:
The present embodiment does further optimization on the basis of embodiment 4, further, the gear protuberance 42 that described curvilinear groove 4 comprises conduit 41 and is arranged on conduit 41, conduit 41, gear protuberance 42 coordinate with groove joint 31 slight interference of pin 3 respectively, and conduit 41 is greater than the magnitude of interference of gear protuberance 42 and groove joint 31 with the magnitude of interference of groove joint 31.
By described in the utility model, curvilinear groove 4, pin 3 independent processing separately in actual production processing, the diameter of pin 3 groove joint 31 is machined to 3.1mm, and the width of curvilinear groove 4 conduit 41 part is machined to 3mm, and the diameter of gear protuberance 42 is machined to 3.05mm.Now, pin 3 and the theoretical magnitude of interference of conduit 41 are 0.1mm and pin 3 is 0.05mm with the theoretical magnitude of interference of gear protuberance 42, after practical set, because of the cell wall generation resiliently deformable of curvilinear groove 4, pin 3 and the actual magnitude of interference of conduit 41 are less than 0.1mm and pin 3 is less than 0.05mm with the actual magnitude of interference of gear protuberance 42.Other parts of the present embodiment are identical with embodiment 4, therefore repeat no more.
Embodiment 6:
The present embodiment does further optimization on the basis of embodiment 5, and further, a kind of manual cam mechanism in rotary moving, also comprises the holding cylinder annex of auxiliary positioning; Described holding cylinder annex is flexible positioning piece or non-resilient locating piece.
As shown in Figure 10, described flexible positioning piece is that O shape rubber ring 51, O shape rubber ring 51 is socketed between cam canister 1 and holding cylinder 2.
As shown in figure 11, described non-resilient locating piece is screw 52, and the quantity of screw 52 is two or more; Described screw 52 divides distribution along the circumference etc. of holding cylinder 2.The quantity of screw 52 is two, and two screw 52 axisymmetric are arranged in the circumference of holding cylinder 2.The quantity of screw 52 is three, and 120 °, adjacent screw 52 interval is arranged in the circumference of holding cylinder 2.When the quantity of screw 52 is four, 90 °, adjacent screw 52 interval is arranged in the circumference of holding cylinder 2.When the quantity of screw 52 is more than five and five, situation and screw 52 quantity are that the situation of two or three or four is identical, therefore repeat no more.Other parts of the present embodiment are identical with embodiment 5, therefore repeat no more.
Embodiment 7:
The present embodiment does further optimization on the basis of embodiment 4, and further, as shown in figure 12, described curvilinear groove 4 is in end to end waveform.Pin 3 slides in corrugated curvilinear groove 4, the spinning in and out that cam canister 1 is reciprocal relative to the movement locus of holding cylinder 2.Other parts of the present embodiment are identical with embodiment 4, therefore repeat no more.
Embodiment 8:
The present embodiment does further optimization on the basis of embodiment 4, and further, described curvilinear groove 4 is curved, and one end is near the bottom of holding cylinder 2, and the other end is away from the bottom of holding cylinder 2; The quantity of described gear protuberance 42 is N+1, and conduit 41 is divided into N number of pilot trench road 41, N to be positive integer by N+1 the gear protuberance 42 be arranged on conduit 41.As depicted in fig. 13 a, N=1, two gear protuberances 42 are separately positioned on near-end and the far-end of curvilinear groove 4.N=2, three gear protuberances 42 are separately positioned on any place of the near-end of curvilinear groove 4, far-end and centre, as illustrated in fig. 13b, arrange three gear protuberances 42 preferably three gear protuberances 42 be separately positioned on the near-end of curvilinear groove 4, far-end and mid point.N=3, four gear protuberances 42 are separately positioned on any two places of the near-end of curvilinear groove 4, far-end and centre, as shown in figure 13 c, arrange four gear protuberances 42 preferably four gear protuberances 42 be separately positioned on the near-end of curvilinear groove 4, far-end and trisection point.The situation of N >=4 is identical with the situation of N=2 or N=3, therefore repeats no more.
As shown in Fig. 1 a, Fig. 1 b, Fig. 2 a, Fig. 2 b, pin 3 proximally moves along curvilinear groove 4, cam canister 1 precession holding cylinder 2, and when pin 3 moves to near-end, cam canister 1 is threaded to the most peri position relative to holding cylinder 2.As shown in Figure 16 a, Figure 16 b, pin 3 distally moves along curvilinear groove 4, and cam canister 1 screws out holding cylinder 2, and when pin 3 moves to far-end, cam canister 1 is threaded to the most amphi position relative to holding cylinder 2.
Other parts of the present embodiment are identical with embodiment 4, therefore repeat no more.
Embodiment 9:
The present embodiment does further optimization on the basis of embodiment 8, and further, the quantity of described curvilinear groove 4 is two or more, multiple curvilinear groove 4 along cam canister circumferential Unequal distance or be equally spaced.As shown in figure 14, three curvilinear grooves 4 along cam canister circumference in the same way but unequally distributed blades.As shown in figure 15, three curvilinear grooves 4 along cam canister circumference in the same way and be equally spaced.Other parts of the present embodiment are identical with embodiment 8, therefore repeat no more.
Embodiment 10:
The present embodiment does further optimization on the basis of embodiment 4, and further, as shown in Figure 1, described pin 3 is arranged along holding cylinder 2 radial direction, and the diameter near holding cylinder 2 axis end is more than or equal to the diameter away from holding cylinder 2 axis end.If when cam canister 1 is coated at holding cylinder 2, the portion that is fixedly connected with 32 of pin 3 is close holding cylinder 2 end, then the diameter in the portion that is fixedly connected with 32 of pin 3 is more than or equal to the diameter of groove joint 31; If be placed on holding cylinder 2 in cam canister 1, the groove joint 31 of pin 3 is that then the diameter of the groove joint 31 of pin 3 is more than or equal to the diameter in the portion of being fixedly connected with 32 near holding cylinder 2 end.Other parts of the present embodiment are identical with embodiment 4, therefore repeat no more.
The above; it is only preferred embodiment of the present utility model; not do any pro forma restriction to the utility model, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present utility model, all falls within protection domain of the present utility model.
Claims (10)
1. a manual cam mechanism in rotary moving, is characterized in that: comprise and mutually be socketed and be cam canister (1) and the holding cylinder (2) of slight interference cooperation, can carry out relative rotating freely movement between cam canister (1) and holding cylinder (2); Described cam canister (1) is deformable plastic thin-wall parts.
2. the manual cam of one according to claim 1 mechanism in rotary moving, is characterized in that: also comprise primarily of groove joint (31) and the pin (3) being fixedly connected with portion (32) and forming; Described groove joint (31) and cam canister (1) are slidably connected, and are fixedly connected with portion (32) and are fixedly connected with holding cylinder (2).
3. the manual cam of one according to claim 2 mechanism in rotary moving, it is characterized in that: the barrel of described cam canister (1) is provided with curvilinear groove (4), the groove joint (31) of pin (3) to be connected in curvilinear groove (4) and to form slight interference with curvilinear groove (4) and coordinates.
4. the manual cam of one according to claim 3 mechanism in rotary moving, it is characterized in that: described curvilinear groove (4) comprises conduit (41) and is arranged on the gear protuberance (42) on conduit (41), conduit (41), gear protuberance (42) coordinate with groove joint (31) slight interference of pin (3) respectively, and conduit (41) is greater than the magnitude of interference of gear protuberance (42) and groove joint (31) with the magnitude of interference of groove joint (31).
5. the manual cam of the one according to claim 1-4 any one mechanism in rotary moving, is characterized in that: the holding cylinder annex also comprising auxiliary positioning; Described holding cylinder annex is flexible positioning piece or non-resilient locating piece.
6. the manual cam of one according to claim 5 mechanism in rotary moving, is characterized in that: described flexible positioning piece is O shape rubber ring (51), and O shape rubber ring (51) is socketed between cam canister (1) and holding cylinder (2).
7. the manual cam of one according to claim 5 mechanism in rotary moving, is characterized in that: described non-resilient locating piece is screw (52), and the quantity of screw (52) is two or more; Described screw (52) divides distribution along the circumference etc. of holding cylinder (2).
8. the manual cam of one according to claim 4 mechanism in rotary moving, is characterized in that: described curvilinear groove (4) is curved, and one end is near the bottom of holding cylinder (2), and the other end is away from the bottom of holding cylinder (2); The quantity of described gear protuberance (42) is N+1, and conduit (41) is divided into N number of pilot trench road (41) by N+1 the gear protuberance (42) be arranged on conduit (41), and N is positive integer.
9. the manual cam of the one mechanism in rotary moving according to claim 3 or 4 or 8, is characterized in that: the quantity of described curvilinear groove (4) is two or more; Described curvilinear groove (4) along cam canister (1) circumference in the same way and equidistantly distribute.
10. the manual cam of the one according to Claims 2 or 3 or 4 or 8 mechanism in rotary moving, is characterized in that: described cam canister (1) is coated at holding cylinder (2) and the diameter in the portion that is fixedly connected with (32) of pin (3) is more than or equal to the diameter of groove joint (31); Or, be placed on holding cylinder (2) in cam canister (1) and the diameter of the groove joint (31) of pin (3) is more than or equal to the diameter of the portion of being fixedly connected with (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520222514.1U CN204592192U (en) | 2015-04-14 | 2015-04-14 | A kind of manual cam mechanism in rotary moving |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520222514.1U CN204592192U (en) | 2015-04-14 | 2015-04-14 | A kind of manual cam mechanism in rotary moving |
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| CN204592192U true CN204592192U (en) | 2015-08-26 |
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| CN201520222514.1U Active CN204592192U (en) | 2015-04-14 | 2015-04-14 | A kind of manual cam mechanism in rotary moving |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159390A (en) * | 2019-06-03 | 2019-08-23 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump that can reduce installation deformation |
| CN110507511A (en) * | 2019-06-24 | 2019-11-29 | 段志 | A kind of telescoping mechanism |
| CN110750045A (en) * | 2019-10-08 | 2020-02-04 | 维沃移动通信有限公司 | Wearable device |
| CN114265169A (en) * | 2021-12-17 | 2022-04-01 | 武汉振光科技有限公司 | One-way continuous rotation adjusting cam barrel device |
-
2015
- 2015-04-14 CN CN201520222514.1U patent/CN204592192U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159390A (en) * | 2019-06-03 | 2019-08-23 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump that can reduce installation deformation |
| CN110507511A (en) * | 2019-06-24 | 2019-11-29 | 段志 | A kind of telescoping mechanism |
| CN110507511B (en) * | 2019-06-24 | 2024-08-23 | 段志 | Telescopic mechanism |
| CN110750045A (en) * | 2019-10-08 | 2020-02-04 | 维沃移动通信有限公司 | Wearable device |
| CN114265169A (en) * | 2021-12-17 | 2022-04-01 | 武汉振光科技有限公司 | One-way continuous rotation adjusting cam barrel device |
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