CN215267956U - Motor with self-locking function, linear actuator and lifting platform - Google Patents

Motor with self-locking function, linear actuator and lifting platform Download PDF

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Publication number
CN215267956U
CN215267956U CN202121066053.5U CN202121066053U CN215267956U CN 215267956 U CN215267956 U CN 215267956U CN 202121066053 U CN202121066053 U CN 202121066053U CN 215267956 U CN215267956 U CN 215267956U
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self
friction
locking
motor
locking mechanism
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陈理钢
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Zhejiang Jiecang Linear Motion Technology Co Ltd
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Zhejiang Jiecang Linear Motion Technology Co Ltd
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Abstract

The utility model discloses a motor, linear actuator and lift platform with self-locking function belongs to the self-lock device field, the utility model discloses motor with self-locking function include the shell, locate driver in the shell, with the end cover of shell butt joint still includes and receives driver control pivoted drive shaft and setting are in the self-locking mechanism of drive shaft periphery, self-locking mechanism includes annular installation department and sets up the friction portion of annular installation department inner circle, annular installation department with friction portion integrated into one piece, self-locking mechanism with end cover interference fit, so that friction portion with the periphery of drive shaft offsets and to radial direction's self-locking power is applyed to the drive shaft.

Description

Motor with self-locking function, linear actuator and lifting platform
[ technical field ] A method for producing a semiconductor device
The utility model relates to a self-lock device field especially relates to motor, linear actuator and lift platform with self-locking function.
[ background of the invention ]
The motor is a power element capable of outputting torque. Generally, a motor can be arranged in various devices to drive the devices to run, such as lifting, rotating and moving, when the devices need to be kept still, the motor is in a standby state or a closed state, the power output is stopped, and if an external force acts on the tangential direction of a driving shaft of the motor, the devices can be lifted, rotated and moved, so that the use experience of users can be influenced.
[ Utility model ] content
The utility model aims to solve the technical problem that overcome prior art not enough and propose the motor that has self-locking function.
In order to solve the technical problem, the utility model adopts the following technical scheme:
motor with self-locking function, including the shell, locate driver in the shell, with the end cover of shell butt joint still includes and receives driver control pivoted drive shaft is in with the setting the self-locking mechanism of drive shaft periphery, self-locking mechanism includes annular installation department and sets up the friction portion of annular installation department inner circle, the annular installation department with friction portion integrated into one piece, self-locking mechanism with end cover interference fit, so that friction portion with the periphery of drive shaft offsets and to radial direction's self-locking power is applyed to the drive shaft.
On the basis of the scheme, at least one friction part is arranged on the inner ring of the annular installation part, the self-locking mechanism further comprises a notch defined by the friction part, and the notch extends to the annular installation part from the central part of the self-locking mechanism.
On the basis of the above scheme, the friction part comprises a friction base body with a friction surface and an elastic base body arranged between the friction base body and the annular mounting part.
On the basis of the scheme, the friction surface of the friction base body is in a concave arc shape matched with the driving shaft, and the friction surface and the annular mounting part are arranged concentrically.
On the basis of the scheme, the friction base body and the annular installation part are at least provided with two elastic base bodies, and the two ends of the friction base body are provided with the elastic base bodies.
On the basis of the scheme, the end cover is provided with a mounting groove, and the self-locking mechanism is in interference fit with the mounting groove.
On the basis of the scheme, the inner wall of the mounting groove and one of the annular mounting parts are provided with clamping grooves, and the other one of the mounting groove and the annular mounting parts is provided with clamping blocks matched with the clamping grooves.
On the basis of the scheme, the inner wall of the mounting groove is provided with a convex top block, and the top block corresponds to the friction part.
The linear actuator comprises the motor with the self-locking function.
A lifting platform comprising the linear actuator described above.
The utility model has the advantages that:
the utility model discloses a motor with self-locking function, self-locking mechanism has been established to the cover in its drive shaft, thereby can produce the self-locking force of effect in the drive epaxial, so that the drive shaft can stop fast or avoid the drive shaft reversal to appear under the exogenic action, the annular installation department is continuous annular structure, through the interference fit with the end cover, can guarantee to produce the effort of capacity between friction portion and the drive shaft, produce and hinder drive shaft pivoted frictional force, make friction portion ability and drive shaft in close contact with, can rotate or have when the rotation trend at the drive shaft between the two, produce and hinder drive shaft pivoted frictional force, in order to realize the drive shaft auto-lock, the annular installation department sets up with friction portion integrated into one piece, can make things convenient for self-locking mechanism's production.
Furthermore, the inner ring of annular installation portion sets up at least one friction portion at the interval, self-locking mechanism still include by the incision that friction portion injectd, the incision is certainly self-locking mechanism's central part extends to annular installation portion. The number of the friction parts can be one or more, after the self-locking mechanism is installed in the motor, the self-locking mechanism is extruded to deform, the friction parts can elastically deform towards the direction of the cut, and the deformation direction of the friction parts is consistent with the rotation direction of the driving shaft, so that a large self-locking force can be generated when the driving shaft rotates reversely; when the driving shaft stops, the friction part can keep the deformation state unchanged, and if an external force acting on the reverse rotation direction of the driving shaft exists, the driving shaft can be driven by overcoming the force required by the friction part to recover the deformation in the current state, so that the self-locking device has better self-locking capability; and the friction part has the tendency of recovering deformation after deformation, and can generate acting force acting in the tangential direction of the driving shaft, thereby better braking or self-locking the driving shaft.
Further, the friction portion includes a friction base having a friction surface and an elastic base disposed between the friction base and the annular mounting portion. The friction surface of the friction base body has a large friction coefficient, considerable acting force can be generated between the friction base body and the driving shaft, and the elastic base body can deform so that the friction part can conveniently deform in different directions to generate acting force in different directions.
Furthermore, the friction surface of the friction base body is in a concave arc shape matched with the driving shaft, and the friction surface and the annular mounting part are concentrically arranged. The circle center of the friction surface is also positioned on the axis of the driving shaft at the same time, so that the friction surface can be in better contact with the driving shaft, the local abrasion of the friction surface is reduced, and the friction part can still be tightly attached to the driving shaft after being deformed.
Further, the friction base member with be equipped with two elastic matrix at least between the annular installation department, the both ends of friction base member all are equipped with elastic matrix. A plurality of elastic base bodies can increase the deformability of friction portion, so can cooperate the drive shaft of different specifications to can increase self-locking mechanism to the self-locking power of drive shaft, set up the both ends protrusion that can avoid the friction base body at the elastic base body at friction base body both ends, friction portion is the fretwork form, and whole self-locking mechanism's appearance is more pleasing to the eye.
Furthermore, the end cover is provided with a mounting groove, and the self-locking mechanism is in interference fit with the mounting groove. The self-locking mechanism is arranged on the end cover through interference fit with the mounting groove and is relatively fixed with the end cover, so that self-locking force can be applied to the driving shaft when the driving shaft rotates or has a rotation trend.
Furthermore, the inner wall of mounting groove with one of them of annular installation department is equipped with the screens groove, another be equipped with the screens piece that the screens groove matches. Through the cooperation of screens groove and screens piece, can carry out better rotation spacing to self-locking mechanism, also can conveniently install self-locking mechanism in the mounting groove simultaneously.
Further, the mounting groove inner wall is equipped with convex kicking block, the kicking block corresponds friction portion sets up. The top block may increase the interference of the friction portion, thereby increasing the self-locking force to the drive shaft.
The utility model also discloses a linear actuator, including foretell motor that has self-locking function, linear actuator can be at linear direction output power, and the drive object goes up and down, and when linear actuator was static, the object also can remain static, and can not make the drive shaft overturn and make the object descend because of external force.
The utility model also discloses a lift platform, including foretell linear actuator, lift platform passes through foretell linear actuator, and the lift process is comparatively stable, can not descend because of the accident to guarantee that user's use is experienced.
These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.
[ description of the drawings ]
The invention will be further explained with reference to the drawings:
fig. 1 is a schematic structural diagram of a motor according to an embodiment of the present invention;
fig. 2 is an exploded view of a motor according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram a of the self-locking mechanism in the embodiment of the present invention;
fig. 4 is a schematic structural diagram B of the self-locking mechanism in the embodiment of the present invention;
fig. 5 is a schematic structural diagram C of the self-locking mechanism in the embodiment of the present invention;
fig. 6 is a schematic structural diagram D of the self-locking mechanism in the embodiment of the present invention;
fig. 7 is a schematic structural diagram E of the self-locking mechanism in the embodiment of the present invention;
fig. 8 is a schematic structural view F of the self-locking mechanism in the embodiment of the present invention;
fig. 9 is a schematic structural diagram G of the self-locking mechanism in the embodiment of the present invention;
FIG. 10 is an enlarged schematic view at A in FIG. 2;
fig. 11 is a schematic structural diagram of an end cap according to an embodiment of the present invention.
Reference numerals:
the drive comprises a shell 100, a driver 110, an end cover 120, a drive shaft 130, a mounting groove 140, a clamping groove 150 and a top block 160;
the self-locking mechanism 200, the annular mounting part 210, the friction part 220, the friction base 221, the elastic base 222, the friction surface 223, the notch 230 and the clamping block 240.
[ detailed description ] embodiments
The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1 to 3, the embodiment of the utility model discloses motor with self-locking function, including shell 100, locate driver 110 in the shell 100, end cover 120 with the butt joint of shell 100, still include and receive driver 110 control pivoted drive shaft 130 and set up self-locking mechanism 200 in drive shaft 130 periphery, self-locking mechanism 200 includes annular installation department 210 and sets up the friction portion 220 at annular installation department 210 inner circle, annular installation department 210 and friction portion 220 integrated into one piece, self-locking mechanism 200 and end cover 120 interference fit to make friction portion 220 offset and exert radial direction's self-locking power to drive shaft 130 with the periphery of drive shaft 130.
The utility model discloses a motor with self-locking function, the cover has been established self-locking mechanism 200 on its drive shaft 130, thereby can produce the self-locking power of acting on drive shaft 130, so that drive shaft 130 can stop fast or avoid drive shaft 130 to appear the reversal under the exogenic action, when self-locking mechanism 200 does not set up on end cover 120, with self-locking mechanism 200 suit on drive shaft 130, there is certain clearance between friction portion 220 and the drive shaft 130, once self-locking mechanism 200 and end cover 120 accomplish the cooperation, make friction portion 220 extruded towards drive shaft 130 direction through the interference fit of the two, and offset with drive shaft 130;
annular installation portion 210 is continuous loop configuration, through the interference fit with end cover 120, can guarantee to produce the effort of the capacity between friction portion 220 and the drive shaft 130, produce and hinder drive shaft 130 pivoted frictional force, make friction portion 220 can with drive shaft 130 in close contact with, can rotate or have the rotation trend between the two at drive shaft 130, produce and hinder drive shaft 130 pivoted frictional force, in order to realize the auto-lock to drive shaft 130, annular installation portion 210 sets up with friction portion 220 integrated into one piece, can make things convenient for the production of self-locking mechanism 200.
In order to facilitate the installation of the self-locking mechanism 200, at least one friction part 220 is arranged on the inner ring of the annular installation part 210, the self-locking mechanism further comprises a notch 230 defined by the friction part 220, the notch 230 extends from the central part of the self-locking mechanism 200 to the annular installation part 210, the number of the friction parts 220 can be one or more, after the self-locking mechanism 200 is installed in a motor, the self-locking mechanism is extruded to deform, the friction part 220 can elastically deform towards the notch 230, and the deformation direction of the friction part 220 is consistent with the rotation direction of the driving shaft 130, so that a larger self-locking force can be generated when the driving shaft 130 rotates reversely; when the driving shaft 130 stops, the friction part 220 can keep the deformation state unchanged, and at this time, if there is an external force acting on the driving shaft 130 in the reverse direction, the driving shaft 130 can be driven by overcoming the force required by the friction part 220 to recover the deformation in the current state, so that the driving shaft 130 has a better self-locking capability; the friction portion 220 has a tendency of recovering deformation after deformation, and generates an acting force acting in the tangential direction of the driving shaft 130, so that the driving shaft 130 can be better braked or self-locked.
The surface of the friction part 220 contacting with the driving shaft 130 is a friction surface 223, the friction surface 223 has a large friction coefficient and can generate considerable acting force with the driving shaft 130, the friction surface 223 can be worn in continuous friction after long-time use, the self-locking performance of the self-locking mechanism 200 can be reduced rapidly after the wear degree is large, in order to reduce the wear degree of the friction surface 223, the friction surface 223 is arranged in a concave arc shape capable of being matched with the driving shaft 130, and the friction surface 223 and the annular mounting part 210 are arranged concentrically, namely, the circle center of the friction surface 223 is located on the axis of the driving shaft 130, so that the friction surface 223 can be ensured to be in better contact with the driving shaft 130, the local wear of the friction surface 223 is reduced, and after the friction part 220 is deformed, the friction surface 223 can also keep close fit with the driving shaft 130.
The utility model discloses in, friction portion 220 is including friction base member 221 and elastic matrix body 222, friction surface 223 sets up on friction base member 221, elastic matrix body 222 is located between friction base member 221 and the annular installation department 210, can produce the effort opposite with deformation direction when deformation after deformation or have the deformation trend, and apply the effort on drive shaft 130 through friction base member 221, elastic matrix body 222 deformation is convenient, in order to make things convenient for friction portion 220 to not equidirectional deformation, produce not equidirectional effort.
Referring to fig. 3 to 8, based on the above embodiment, in another embodiment of the present invention, at least two elastic bases 222 are disposed between the friction base 221 and the annular mounting portion 210, and there is a gap between the elastic bases 222 of each friction portion 220 to facilitate the deformation of the elastic bases 222, so as to increase the deformation capability of the friction portion 220, and the larger the deformation degree of the elastic bases 222 is, the larger the self-locking force generated by the elastic bases to the driving shaft 130 is.
The elastic base bodies 222 are arranged at the two ends of the friction base body 221, so that the two ends of the friction base body 221 can be prevented from protruding, and the appearance of the whole self-locking mechanism 200 is more attractive.
Referring to fig. 3 and 4, on the basis of the above embodiment, in another embodiment of the present invention, the self-locking mechanism 200 includes two friction portions 220, and the self-locking mechanism 200 can unidirectionally self-lock the driving shaft 130.
The unidirectional self-locking means that when the driving shaft 130 rotates in the first direction, the self-locking mechanism 200 does not or only generates a small acting force on the driving shaft 130, and when the driving shaft 130 rotates in the reverse direction, the self-locking mechanism 200 generates a large acting force on the driving shaft 130. By setting the self-locking mechanism 200 to be one-way self-locking, the loss of the self-locking mechanism 200 can be reduced.
In this embodiment, the two elastic bases 222 at the two ends of the friction base 221 have different lengths, and the two friction portions 220 are centrosymmetric with respect to the center of the circular mounting portion 210. Since the self-locking mechanism 200 is an integrally formed part, the whole materials thereof are the same, and the friction base 221 and the driving shaft 130 are concentrically arranged, so that if the lengths of the two elastic bases 222 are different, the difficulty of deformation of the friction portion 220 to both sides is also different, so as to realize unidirectional self-locking of the driving shaft 130.
The following are exemplary: the longer elastic base 222 is arranged away from the other elastic base 222, and the friction part 220 is easier to deform towards the elastic base 222 on the shorter side; if a longer elastomeric matrix 222 is disposed adjacent to another elastomeric matrix 222, the friction portion 220 is more easily deformed toward the longer elastomeric matrix 222. In this way, the acting forces applied to the driving shaft 130 in the forward rotation and the reverse rotation are different, so that the one-way self-locking of the driving shaft 130 can be realized.
Of course, the number of friction portions may be larger, three (e.g., fig. 4), four, etc.
Referring to fig. 5 to 7, on the basis of the above embodiment, in another embodiment of the present invention, the self-locking mechanism 200 includes two friction portions 220, and the self-locking mechanism 200 can bidirectionally self-lock the driving shaft 130.
The bidirectional self-locking means that the acting force of the self-locking mechanism 200 on the driving shaft 130 is unchanged regardless of whether the driving shaft 130 rotates forwards or backwards, and the direction of the acting force is opposite to the rotating direction of the driving shaft 130. Through setting up self-locking mechanism 200 to two-way auto-lock, can make drive shaft 130 stop fast to improve the control accuracy of motor, when can avoid the motor stall state simultaneously, drive shaft 130 rotates under the exogenic action power.
Referring to fig. 5 and 6, the two elastic bases 222 at the two ends of the friction base 221 have the same length, and the opposite friction surfaces 223 are symmetrically arranged through the center line of the circle center of the annular mounting portion 210, and because the two elastic bases 222 have the same length and are symmetrically arranged, the problem that the friction portion 220 is easier or more difficult to deform towards one side does not exist, so that the bidirectional self-locking of the driving shaft 130 can be realized.
Referring to fig. 7, if the lengths of the two elastic bases 222 at the two ends of the friction base 221 are different, and the two friction portions 220 are symmetrically disposed with respect to one center line of the self-locking mechanism 200, bidirectional self-locking of the driving shaft 130 may be achieved. The following are exemplary: when the driving shaft 130 rotates forward, one of the friction parts 220 is more easily deformed toward the rotation direction of the driving shaft 130, and the other friction part 220 is less easily deformed toward the rotation direction, and when the driving shaft 130 rotates backward, the two friction parts 220 are deformed in opposite directions, so that the total amount of force of the two friction parts 220 resisting the rotation of the driving shaft 130 is the same regardless of the forward rotation or the backward rotation of the driving shaft 130.
Referring to fig. 8 and 9, unlike the above-described embodiment, in another embodiment of the present invention, the self-locking mechanism 200 includes a friction portion 220.
In fig. 8, the elastic bases 222 at the two ends of the friction base 221 have the same length, and are symmetrically arranged relative to the friction surface 223 through the center line of the circular mounting portion 210, the two elastic bases 222 are arc-shaped, when the driving shaft 130 rotates, one end of the friction base 221 approaches to the other end, and in the process, the friction force between the friction base 221 and the driving shaft 130 is gradually increased. Further, the driving shaft 130 is rotated in the normal direction or the reverse direction, and the degrees of the friction base 221 and the elastic base 222 are the same, so that the driving shaft 130 can be bidirectionally self-locked.
In fig. 9, the friction portion 220 includes a plurality of elastic bases 222, the plurality of elastic bases 222 are distributed between the friction base 221 and the annular mounting portion 210 in an annular array, the shape of the elastic base 222 is arc, and the plurality of elastic bases 222 and the friction base 221 form a spiral friction portion 220 to achieve one-way self-locking of the driving shaft 130. If the rotation direction of the driving shaft 130 is the same as the rotation direction of the friction portion 220, the friction portion 220 may generate a large force to the driving shaft 130.
Referring to fig. 10 and 11, based on the above embodiment, in another embodiment of the present invention, a mounting structure of the self-locking mechanism 200 is specifically described.
A mounting groove 140 is formed on the end cap 120 toward one side of the housing 100, and the self-locking mechanism 200 is mounted in the mounting groove 140 and is in interference fit with the mounting groove 140 to maintain relative fixation with the end cap 120, so as to apply a self-locking force to the driving shaft 130 when the driving shaft 130 rotates or has a tendency to rotate. The mounting groove 140 can accommodate the self-locking mechanism 200, so that the self-locking mechanism 200 is prevented from being exposed, and the end cover 120 can shield dust particles from entering the mounting groove 140 to influence the normal state of the self-locking mechanism 200.
In order to limit the rotation of the self-locking mechanism 200 relative to the end cover 120, the inner wall of the mounting groove 140 is provided with a clamping groove 150, the periphery of the annular mounting portion 210 is provided with a clamping block 240, and the clamping block 240 can be clamped into the clamping groove 150, so that the rotation of the self-locking mechanism 200 relative to the end cover 120 can be limited under the cooperation effect of the clamping block 240 and the clamping groove 150 even if the self-locking mechanism 200 is not in interference fit with the mounting groove 140. Meanwhile, the positioning block 240 and the positioning groove 150 can also play a guiding role, so that the self-locking mechanism 200 can be conveniently installed in the installation groove 140. Of course, the locking groove 150 may be disposed on the outer circumference of the annular mounting portion 210, and the locking block 240 may be disposed on the inner wall of the mounting groove 140.
In order to increase the acting force between the friction part 220 and the driving shaft 130, the inner wall of the mounting groove 140 is provided with a protruding top block 160, and the top block 160 is arranged corresponding to the friction part 220, so that the interference of the friction part 220 can be increased, the elastic potential energy of the friction part 220 is improved, and the self-locking force to the driving shaft 130 is increased.
The embodiment of the utility model provides a linear actuator is still disclosed, including foretell motor that has self-locking function, linear actuator can be at linear direction output power, and the drive object goes up and down, and when linear actuator was static, the object also can remain static, and can not make the drive shaft overturn and make the object descend because of external force.
The linear actuator consists of a motor, a worm wheel and an upright post, the motor drives the worm wheel through a driving shaft (worm), the screw rod in the upright post is controlled to rotate through the worm wheel so as to control the upright post to stretch, and the self-locking mechanism can also be arranged on a hub of the worm wheel to self-lock the worm wheel and can also be arranged on the screw rod to self-lock the screw rod.
The embodiment of the utility model provides a still disclose lift platform, lift platform includes the elevating platform and drives the drive division of elevating platform lift action, and drive division is foretell linear actuator, and the elevating platform lift process is comparatively stable, can not descend because of the accident to guarantee that user's use is experienced.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (10)

1. Motor with self-locking function, its characterized in that includes the shell, locates driver in the shell, with the end cover that the shell docks, still including receiving driver control pivoted drive shaft is in with the setting the self-locking mechanism of drive shaft periphery, self-locking mechanism includes annular installation department and sets up the friction portion of annular installation department inner circle, the annular installation department with friction portion integrated into one piece, self-locking mechanism with end cover interference fit, so that friction portion with the periphery of drive shaft offsets and to the radial direction's self-locking power is applyed to the drive shaft.
2. The motor with self-locking function of claim 1, wherein the inner ring of the annular mounting portion is provided with at least one friction portion, and the self-locking mechanism further comprises a notch defined by the friction portion, and the notch extends from a central portion of the self-locking mechanism to the annular mounting portion.
3. The motor having a self-locking function according to claim 2, wherein the friction portion includes a friction base having a friction surface and an elastic base disposed between the friction base and the annular mounting portion.
4. The motor with self-locking function as claimed in claim 3, wherein the friction surface of the friction base is in a concave arc shape matching with the driving shaft, and the friction surface is concentrically arranged with the annular mounting portion.
5. The motor with the self-locking function according to claim 3, wherein at least two elastic bases are arranged between the friction base and the annular mounting portion, and the elastic bases are arranged at two ends of the friction base.
6. The motor with self-locking function of claim 1, wherein the end cap is provided with a mounting groove, and the self-locking mechanism is in interference fit with the mounting groove.
7. The motor with self-locking function as claimed in claim 6, wherein one of the inner wall of the mounting groove and the annular mounting portion is provided with a locking groove, and the other is provided with a locking block matched with the locking groove.
8. The motor with self-locking function of claim 6, wherein the inner wall of the mounting groove is provided with a protruding top block, and the top block is arranged corresponding to the friction part.
9. Linear actuator, characterized in that it comprises a motor with self-locking function according to any one of claims 1 to 8.
10. A lifting platform comprising the linear actuator of claim 9.
CN202121066053.5U 2021-05-18 2021-05-18 Motor with self-locking function, linear actuator and lifting platform Active CN215267956U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121066053.5U CN215267956U (en) 2021-05-18 2021-05-18 Motor with self-locking function, linear actuator and lifting platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121066053.5U CN215267956U (en) 2021-05-18 2021-05-18 Motor with self-locking function, linear actuator and lifting platform

Publications (1)

Publication Number Publication Date
CN215267956U true CN215267956U (en) 2021-12-21

Family

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Application Number Title Priority Date Filing Date
CN202121066053.5U Active CN215267956U (en) 2021-05-18 2021-05-18 Motor with self-locking function, linear actuator and lifting platform

Country Status (1)

Country Link
CN (1) CN215267956U (en)

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