CN220629153U - Magnetic driver and magnetic driving transmission line - Google Patents

Abstract

The utility model discloses a magnetic driver and a magnetic driver transmission line, wherein the magnetic driver comprises a rotor main body, a plurality of groups of pulleys and at least one self-adaptive structure, the pulleys can be rotatably arranged on the rotor main body, the plurality of groups of pulleys are distributed along the transmission direction of the magnetic driver, and a gap is reserved between two pulleys in at least one group of pulleys for assembling external guide parts; at least one pulley is movably connected to the mover body through an adaptive structure for providing an elastic force toward the gap for the corresponding pulley, so that the pulley is elastically supported to the external guide member. The technical scheme of the utility model can solve the technical problem of severe vibration of the mover when the mover passes through the arc section of the guide rail.

Description

Magnetic driver and magnetic driving transmission line

Technical Field

The utility model relates to the technical field of magnetic drive conveying, in particular to a magnetic drive and a magnetic drive transmission line.

Background

The precise motion control technology is a core technology of high-end equipment and advanced manufacturing industry, is an important means for realizing fine processing and improving the product quality and the production efficiency, and is widely applied to the industries of automatic production lines, packaging, transportation, assembly automation and the like at present. The traditional driving system is driven by adopting a rotating motor, and the driving system has the advantages of complex structure, low precision and high failure rate, and is difficult to realize a precise motion control technology. The linear motor is a transmission device which directly converts electric energy into linear motion mechanical energy without any intermediate conversion mechanism.

Compared with a rotary motor, the linear motor has the following main characteristics: firstly, the structure is simple, and the linear motor does not need an additional device for changing the rotary motion into the linear motion, so that the structure of the system is greatly simplified, and the weight and the volume are greatly reduced; secondly, the positioning accuracy is high, and the linear motor can realize direct transmission at the place needing linear motion, so that various positioning errors caused by intermediate links can be eliminated, and if microcomputer control is adopted, the positioning accuracy of the whole system can be greatly improved; and thirdly, the reaction speed is high, the sensitivity is high, and the follow-up property is good. The linear motor is easy to support the rotor by magnetic suspension, so that a certain air gap is kept between the rotor and the stator all the time without contact, the contact friction resistance between the stator and the rotor is eliminated, and the sensitivity, the rapidity and the follow-up performance of the system are greatly improved; fourth, the work is safe and reliable, long-lived. The linear motor can realize non-contact transmission force, and the mechanical friction loss is almost zero, so that the linear motor has few faults and long service life, and is free from maintenance, thereby being safe and reliable in work and capable of adopting the linear motor to realize the precise motion control technology.

The linear motor generally comprises a runner, when the runner moves, the runner needs to be matched with a guide rail through a plurality of pulley blocks to guide the movement of the runner, a gap between two pulleys in the pulley blocks is fixed, and when the runner passes through an arc section of the guide rail, the runner can vibrate severely due to the influence of centrifugal force, which can certainly influence the positioning accuracy and stability of the runner on the guide rail.

Disclosure of Invention

The embodiment of the utility model provides a magnetic driver and a magnetic driving transmission line, which can solve the technical problem of severe vibration of the mover when the mover passes through an arc section of a guide rail.

In a first aspect, embodiments of the present utility model provide a magnetic drive comprising:

a mover body;

the pulleys are rotatably arranged on the rotor main body, are distributed along the transmission direction of the magnetic driver, and a gap is reserved between two pulleys in at least one group of pulleys for assembling external guide parts; and

at least one self-adapting structure, at least one pulley is through self-adapting structure swing joint in the active cell main part, self-adapting structure is used for corresponding the pulley provides towards the elasticity of clearance, makes the pulley elastic support in outside direction part.

Optionally, in some embodiments of the present utility model, the adaptive structure includes a mounting block and an elastic member, the mounting block is slidably connected to the mover body along an extension direction of an elastic force borne by the pulley, the pulley is rotatably connected to the mounting block, and two ends of the elastic member are respectively abutted to the mounting block and the mover body.

Optionally, in some embodiments of the present utility model, the pulley is disposed on a first side of the mover body, a second side of the mover body is provided with a chute corresponding to the mounting block, the mounting block is slidably embedded in the chute, and the first side and the second side are opposite sides of the mover body;

the bottom surface of spout is equipped with the through-hole, the pulley passes through the through-hole rotation connect in the installation piece.

Optionally, in some embodiments of the present utility model, a side surface of the mover body is further provided with a limiting channel, the limiting channel is communicated with the chute, and the adaptive structure further includes a fastener, and the fastener is assembled in the limiting channel;

the elastic piece is arranged in the limiting channel and the sliding groove, the mounting block is provided with a guide post, the first end of the elastic piece is sleeved outside the guide post, and the second end of the elastic piece is abutted to the fastening piece.

Optionally, in some embodiments of the present utility model, the plurality of sets of pulleys includes a first pulley set and at least two sets of second pulley sets, and the second pulley sets are disposed on two opposite sides of the first pulley set;

the first pulley block comprises a first inner pulley and a first outer pulley, the second pulley block comprises a second inner pulley and a second outer pulley, the first inner pulley and the second inner pulley are positioned at the inner side of the gap, and the first outer pulley and the second outer pulley are positioned at the outer side of the gap;

the second outer side pulley is movably connected with the rotor main body through the self-adaptive structure.

Optionally, in some embodiments of the present utility model, the first inner pulley and the second inner pulley are distributed in an arc shape, and a center of the arc is located on a side of the first inner pulley away from the first outer pulley.

Optionally, in some embodiments of the utility model, an extension line of a connecting line of the first outer pulley and the first inner pulley passes through a center of the circular arc.

Optionally, in some embodiments of the present utility model, the direction of the elastic force provided by the adaptive structure to the second outer pulley passes through the center of the circular arc.

Optionally, in some embodiments of the present utility model, the adjacent side of the first pulley block is provided with the second pulley block;

the plurality of groups of pulleys further comprise third pulley blocks, and the second pulley blocks and the third pulley blocks are distributed in a staggered manner in two opposite sides of the first pulley block;

the third pulley block comprises a third inner pulley and a third outer pulley, the third inner pulley is positioned at the inner side of the gap, and the third outer pulley is positioned at the outer side of the gap;

the third inner pulley is movably connected with the rotor main body through the self-adaptive structure.

Alternatively, in some embodiments of the utility model, the first outer pulley and the third outer pulley are disposed co-linearly.

Optionally, in some embodiments of the utility model, the direction of the elastic force provided by the adaptive structure to the third inner sheave is perpendicular to the connecting line of the first outer sheave and the third outer sheave.

In a second aspect, an embodiment of the present utility model provides a magnetic drive transmission line, including:

a magnetic drive as described above; and

and the guide rail is arranged corresponding to the gap, and the pulley is abutted against the guide rail.

According to the technical scheme, the pulleys and the rotor main body are movably connected through the self-adaptive structure, the self-adaptive structure can provide elasticity towards the gap for the corresponding pulleys, so that the pulleys are elastically supported on the external guide part, vibration of the rotor can be buffered, the technical problem of severe vibration of the rotor when the rotor passes through the arc section of the guide rail is effectively solved, the pulleys can be stably abutted on the guide rail through elasticity, stability of the rotor on the guide rail is improved, and positioning accuracy of the rotor on the guide rail is effectively guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a magnetic drive transmission line according to an embodiment of the present utility model;

FIG. 2 is a schematic top view of a magnetic drive transmission line according to an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of area A of FIG. 2;

FIG. 4 is an enlarged schematic view of region B of FIG. 2;

FIG. 5 is a schematic diagram of an exploded view of the adaptive structure of a magnetic drive according to an embodiment of the present utility model;

FIG. 6 is a schematic perspective view of a mover body according to an embodiment of the present utility model;

fig. 7 is a schematic perspective view of a mover body according to another embodiment of the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the technical solutions should be considered that the combination does not exist and is not within the scope of protection claimed by the present utility model.

Referring to fig. 1, an embodiment of the present utility model provides a magnetic drive transmission line, which includes a magnetic drive sub-100, a stator 300 and a guide rail 400, wherein the magnetic drive sub-100 is slidably connected to the guide rail 400, and the guide rail 400 is used for guiding the movement of the magnetic drive sub-100. The magnetic driver 100 is provided with a permanent magnet array 130, the stator 300 is provided with coils (not shown), and the corresponding coils of the stator 300 are activated and energized to excite, so that excitation magnetic fields generated by the corresponding coils interact in the permanent magnetic fields generated by the permanent magnet array 130 to form thrust, and the mover generates translational motion.

Referring to fig. 2 to 4, the magnetic drive sub 100 includes a sub-body 110, a plurality of sets of pulleys 120, and at least one adaptive structure 200.

The pulleys 120 are rotatably provided to the mover body 110, the plurality of sets of pulleys 120 are distributed along a transmission direction of the magnetic drive mover 100, and a gap 121 is provided between two pulleys 120 of at least one set of pulleys 120 for assembling external guide members. In this embodiment, the guide rail 400 is disposed corresponding to the gap 121, such that the two pulleys 120 in each set of pulleys 120 are respectively located at two opposite sides of the guide rail 400, and the pulleys 120 abut against the guide rail 400, so that the magnetic driver 100 is slidably connected to the guide rail 400.

At least one pulley 120 is movably coupled to the mover body 110 through an adaptive structure 200, and the adaptive structure 200 is used to provide an elastic force to the corresponding pulley 120 toward the gap 121, so that the pulley 120 is elastically supported to an external guide part.

According to the embodiment of the utility model, the pulley 120 and the rotor main body 110 are movably connected by the self-adaptive structure 200, the self-adaptive structure 200 can provide the elastic force towards the gap 121 for the corresponding pulley 120, so that the pulley 120 is elastically supported on an external guide part, vibration of the rotor can be buffered, the technical problem of severe vibration of the rotor when the rotor passes through the circular arc section 420 of the guide rail 400 is effectively solved, the pulley 120 can be stably abutted on the guide rail 400 by the elastic force, the stability of the rotor on the guide rail 400 is improved, and the positioning precision of the rotor on the guide rail 400 is effectively ensured.

Specifically, as shown in fig. 5, the adaptive structure 200 includes a mounting block 210 and an elastic member 220, the pulley 120 is rotatably connected to the mounting block 210, the mounting block 210 is slidably connected to the mover body 110 along an extension direction of an elastic force borne by the pulley 120, and two ends of the elastic member 220 are respectively abutted to the mounting block 210 and the mover body 110. Through the above arrangement, the pulley 120 is rotatably provided on the mover body 110, and the elastic member 220 may provide the corresponding pulley 120 with an elastic force toward the gap 121, so that the pulley 120 is elastically supported on the external guide member.

In the embodiment of the present utility model, the elastic member 220 may be a spring, and of course, the elastic member 220 may be other elastic components according to the actual situation and specific requirements, which is not limited only herein.

Specifically, referring to fig. 5 to 7, the pulley 120 is disposed on a first side of the mover body 110, and the runner 111 is disposed on a second side of the mover body 110 corresponding to the mounting block 210, where the first side and the second side are opposite sides of the mover body 110. In this embodiment, the pulley 120 may be disposed on the bottom surface of the mover body 110, and the chute 111 may be disposed on the top surface of the mover body 110.

The mounting block 210 is slidably inserted into the chute 111, so that the mounting block 210 is slidably connected to the mover body 110 along the direction of the elastic force applied by the pulley 120. With this structure, the sliding connection of the mounting block 210 can be realized without adding an additional slide rail, so that the cost can be saved and the assembly difficulty can be reduced.

The bottom surface of the chute 111 is provided with a through hole 112, and the pulley 120 is rotatably connected to the mounting block 210 through the through hole 112. Under this structure, the installation block 210 is hidden inside the rotor main body 110, and the pulley 120 and the installation block 210 are connected by the through hole 112, so that the structure is compact, which is beneficial to the miniaturization design of the magnetic driving sub 100. In this embodiment, pulley 120 may be, but is not limited to being, rotatably coupled to mounting block 210 by a shaft.

It will be appreciated that, according to the actual situation and the specific requirement, the mounting block 210 may also be slidably connected to the first side (bottom surface) of the mover body 110 through a sliding rail, and the pulley 120 may be directly rotatably connected to the mounting block 210 through a rotating shaft, where the sliding manner of the mounting block 210 and the mounting manner of the pulley 120 are not limited only.

Specifically, referring to fig. 5 to 7, the side surface of the mover body 110 is further provided with a limiting channel 113, the limiting channel 113 is communicated with the chute 111, and the adaptive structure 200 further includes a fastener 230, wherein the fastener 230 is assembled in the limiting channel 113. The elastic member 220 is disposed in the limiting channel 113 and the chute 111, the mounting block 210 is provided with a guide post 211, a first end of the elastic member 220 is sleeved outside the guide post 211, and a second end of the elastic member 220 abuts against the fastener 230. With this structure, the elastic member 220 can be limited, so as to prevent the elastic member 220 from shifting, and effectively improve the reliability of the adaptive structure 200.

Specifically, referring to fig. 3 and 4, the plurality of sets of pulleys 120 includes a first pulley block 122 and at least two sets of second pulley blocks 123, and the second pulley blocks 123 are disposed on two opposite sides of the first pulley block 122. Wherein the first pulley block 122 includes a first inner pulley 1221 and a first outer pulley 1222, the second pulley block 123 includes a second inner pulley 1231 and a second outer pulley 1232, the first inner pulley 1221 and the second inner pulley 1231 are located inside the gap 121, and the first outer pulley 1222 and the second outer pulley 1232 are located outside the gap 121. The second outer side pulley 1232 is movably connected to the rotor main body 110 through the self-adaptive structure 200, namely, the second outer side pulley 1232 can be elastically supported on an outer guide part by means of the elasticity of the self-adaptive structure 200, so that vibration of the rotor is buffered, the technical problem that the rotor severely vibrates when passing through the circular arc section 420 of the guide rail 400 is effectively solved, the elasticity can enable the second outer side pulley 1232 to be stably abutted to the guide rail 400, stability of the rotor on the guide rail 400 is improved, and positioning accuracy of the rotor on the guide rail 400 is effectively guaranteed.

It should be noted that, in the magnetic driving unit 100 according to the embodiment of the present utility model, not all the pulleys 120 are elastically supported on the external guiding parts by the adaptive structure 200, so that the reliability of the sliding connection of the magnetic driving unit 100 can be ensured. If all the pulleys 120 are elastically supported to the external guide member by the adaptive structure 200, the shaking of the magnetic driving element 100 is easily caused, which is disadvantageous in solving the vibration problem of the magnetic driving element 100.

In the embodiment of the present utility model, the magnetic driving device 100 is provided with two sets of second pulley blocks 123, and the two sets of second pulley blocks 123 are respectively disposed on two opposite sides of the first pulley block 122, and of course, according to the selection of practical situations and the specific requirement setting, the magnetic driving device 100 may be provided with more second pulley blocks 123, and the number of the second pulley blocks 123 is not limited only.

Specifically, the second pulley blocks 123 are symmetrically disposed on opposite sides of the first pulley block 122, that is, the plurality of sets of pulleys 120 includes a plurality of sets of second pulley blocks 123, and the number of second pulley blocks 123 on one side of the first pulley block 122 is the same as the number of second pulley blocks 123 on the other side. Through the arrangement, when the magnetic driving device passes through the arc section 420 of the guide rail 400, the buffering uniformity of the magnetic driving device 100 can be improved, the buffering effect is greatly improved, the stability of the rotor on the guide rail 400 is improved, and the positioning accuracy of the rotor on the guide rail 400 is effectively ensured.

Specifically, referring to fig. 3 and 4, the first inner pulley 1221 and the second inner pulley 1231 are distributed in an arc shape, and the center of the arc is located on the side of the first inner pulley 1221 away from the first outer pulley 1222. In this embodiment, an extension line of a connecting line of the first outer pulley 1222 and the first inner pulley 1221 passes through the center of the circular arc.

As shown in fig. 3, when the magnetic driver 100 moves to the straight line segment 410 of the guide rail 400, the first inner pulley 1221 abuts against the inner side of the straight line segment 410 of the guide rail 400, the first outer pulley 1222 and the second outer pulleys 1232 abut against the outer side of the straight line segment 410 of the guide rail 400, and the pulley 120 is sufficient to provide a good guiding effect for the magnetic driver 100 because there is no influence of centrifugal force, so that the stability of the movement of the magnetic driver 100 in the straight line segment 410 of the guide rail 400 can be ensured. As shown in fig. 4, when the magnetic driver 100 moves to the circular arc section 420 of the guide rail 400, the first inner side pulley 1221 and the second inner side pulleys 1231 on both sides are distributed in a circular arc shape and can be adapted to the inner side shape of the circular arc section 420 of the guide rail 400, so that the first inner side pulley 1221 and the second inner side pulleys 1231 on both sides stably contact with the inner side of the circular arc section 420 of the guide rail 400, the first inner side pulley 1221 and the second inner side pulleys 1231 on both sides can perform a good guiding function on the circular arc section 420 of the guide rail 400, and the second outer side pulley 1232 also contacts with the outer side of the circular arc section 420 of the guide rail 400 due to the elastic force of the adaptive structure 200, and the first outer side pulley 1222 contacts with the outer side of the circular arc section 420 of the guide rail 400 to perform a circular arc shape, so that the first outer side pulley 1222 and the second outer side pulley 1232 can perform a good guiding function on the circular arc section 420 of the guide rail 400.

Specifically, as shown in fig. 4, the direction of the elastic force provided by the adaptive structure 200 to the second outer pulley 1232 passes through the center of the circular arc. Through the above arrangement, the elastic force provided by the adaptive structure 200 for the second outer pulley 1232 is the same as the direction of the centrifugal force, so that the vibration phenomenon caused by the centrifugal force can be buffered better.

Specifically, referring to fig. 3 and fig. 4, the adjacent side of the first pulley block 122 is provided with a second pulley block 123, that is, the adjacent two sides of the first pulley block 122 are provided with the second pulley block 123. The pulley sets 120 further comprise a third pulley set 124, and the second pulley set 123 and the third pulley set 124 are staggered in two opposite sides of the first pulley set 122; the third pulley block 124 includes a third inner pulley 1241 and a third outer pulley 1242, the third inner pulley 1241 being located inside the gap 121, the third outer pulley 1242 being located outside the gap 121; the third inner pulley 1241 is movably connected to the rotor main body 110 through the self-adaptive structure 200, that is, the third inner pulley 1241 can be elastically supported on an external guiding part by means of the elasticity of the self-adaptive structure 200, so that vibration of the rotor is buffered, the technical problem that the rotor severely vibrates when passing through the circular arc section 420 of the guide rail 400 is improved to a certain extent, the third inner pulley 1241 can be stably abutted to the guide rail 400 by the elasticity, the stability of the rotor on the guide rail 400 is improved, and the positioning precision of the rotor on the guide rail 400 is effectively ensured.

It should be noted that, the magnetic driver 100 is easy to displace inward during the process of moving the circular arc section 420 of the guide rail 400 to the linear section 410, and the third inner pulley 1241 can be elastically supported by the external guiding part by means of the elastic force of the adaptive structure 200, so as to play a role of buffering and prevent the mover from vibrating.

In the embodiment of the present utility model, the magnetic driving sub 100 is provided with two sets of third pulley blocks 124, the two sets of third pulley blocks 124 are respectively located at one side of the corresponding second pulley block 123 far away from the first pulley block 122, of course, according to the selection of practical situations and the specific requirement setting, the magnetic driving sub 100 can be provided with more third pulley blocks 124, as long as the second pulley block 123 and the third pulley block 124 are ensured to be staggered on two opposite sides of the first pulley block 122, and the number of the third pulley blocks 124 is not limited only.

Specifically, the third pulley blocks 124 are symmetrically disposed on opposite sides of the first pulley block 122, that is, the plurality of sets of pulleys 120 includes a plurality of sets of third pulley blocks 124, and the number of third pulley blocks 124 on one side of the first pulley block 122 is the same as the number of third pulley blocks 124 on the other side. Through the arrangement, when the linear section 410 of the guide rail 400 passes, the uniformity of the displacement buffering of the magnetic driver 100 can be improved, the buffering effect is greatly improved, the stability of the rotor on the guide rail 400 is improved, and the positioning accuracy of the rotor on the guide rail 400 is effectively ensured.

Specifically, the first outer pulley 1222 and the third outer pulley 1242 are disposed in line, and a line of the first outer pulley 1222 and the third outer pulley 1242 is perpendicular to a connecting line of the first inner pulley 1221 and the first outer pulley 1222, and a line of the first outer pulley 1222 and the third outer pulley 1242 is parallel to the linear section 410 of the guide rail 400. As shown in fig. 3, when the magnetic driver 100 moves to the straight section 410 of the guide rail 400, the third inner pulley 1241 abuts against the inner side of the straight section 410 of the guide rail 400 and the third outer pulley 1242 abuts against the outer side of the straight section 410 of the guide rail 400 due to the elastic force of the adaptive structure 200, so that the stability of the movement of the magnetic driver 100 in the straight section 410 of the guide rail 400 can be ensured. As shown in fig. 4, when the magnetic driver 100 moves to the arc section 420 of the guide rail 400, due to the elastic force of the adaptive structure 200, the third inner pulley 1241 is also abutted against the inner side of the arc section 420 of the guide rail 400, so that the first inner pulley 1221 and the second inner pulleys 1231 and the third inner pulley 1241 on both sides thereof are distributed in an arc shape and are adapted to the inner side shape of the arc section 420 of the guide rail 400, the first inner pulley 1221 and the second inner pulleys 1231 and the third inner pulley 1241 on both sides thereof are stably abutted against the inner side of the arc section 420 of the guide rail 400, the first inner pulley 1221 and the second inner pulleys 1231 and the third inner pulley 1241 on both sides thereof can play a good guiding role on the arc section 420 of the guide rail 400, and the third outer pulley 1242 is arranged at intervals from the arc section 420 of the guide rail 400.

Specifically, as shown in fig. 3, the direction of the elastic force provided by the adaptive structure 200 to the third inner pulley 1241 is perpendicular to the connecting line of the first outer pulley 1222 and the third outer pulley 1242, i.e., the direction of the elastic force provided by the adaptive structure 200 to the third inner pulley 1241 is perpendicular to the straight line segment 410 of the guide rail 400. By the arrangement, the direction of the elastic force provided by the adaptive structure 200 for the third inner pulley 1241 is perpendicular to the straight line segment 410 of the guide rail 400, so that the displacement of the straight line segment 410 towards the inner side can be buffered better.

In the embodiment of the present utility model, as shown in fig. 3, when the magnetic driver 100 moves along the straight line segment 410 of the guide rail 400, the first inner pulley 1221 and the two third inner pulleys 1241 abut against the inner side of the guide rail 400, and the first outer pulley 1222, the two second outer pulleys 1232 and the two third outer pulleys 1242 abut against the outer side of the guide rail 400, so that the adaptive structure 200 provides the elastic force for the third inner pulley 1241 to be perpendicular to the straight line segment 410 of the guide rail 400, the adaptive structure 200 provides the elastic force for the second outer pulleys 1232 to be inclined with respect to the straight line segment 410 of the guide rail 400, and the component force of the elastic force received by the second outer pulleys 1232 in the direction perpendicular to the straight line segment 410 of the guide rail 400 is insufficient to support the elastic force received by the third inner pulleys 1241, so that when the magnetic driver 100 moves along the straight line segment 410 of the guide rail 400, the number of pulleys 120 providing rigid support needs to be increased on the outer side, so that the number of the outer pulleys 120 providing rigid support is greater than the number of the inner pulleys 120 providing rigid support, so that the adaptive structure 200 provides the stability of the magnetic driver 100 along the straight line segment 410 can be ensured.

Preferably, as shown in fig. 3, when the magnetic driver 100 moves along the straight line segment 410 of the guide rail 400, the number of pulleys 120 that the magnetic driver 100 contacts against the inner side of the guide rail 400 is at least three, wherein at least one pulley 120 (a first inner pulley 1221) that can provide rigid support, and at least two pulleys 120 (a third inner pulley 1241) that can provide elastic support with an action direction perpendicular to the straight line segment 410 are included; the number of pulleys 120 of the magnetic driver 100 abutting against the outer side of the guide rail 400 is at least five, wherein the magnetic driver comprises at least three pulleys 120 (a first outer pulley 1222 and a third outer pulley 1242) capable of providing rigid support and at least two pulleys 120 (a second outer pulley 1232) capable of providing elastic force with an action direction inclined to the straight line section 410, so that at least eight pulleys 120 of the magnetic driver 100 abutting against the guide rail 400 in the straight line section 410 of the guide rail 400 is ensured, and the stability of the magnetic driver 100 in the guide rail 400 is ensured.

In the embodiment of the present utility model, as shown in fig. 4, when the magnetic driver 100 moves along the circular arc section 420 of the guide rail 400, the first inner pulley 1221, the two second inner pulleys 1231 and the two third inner pulleys 1241 are abutted against the inner side of the guide rail 400, and the first outer pulley 1222 and the two second outer pulleys 1232 are abutted against the outer side of the guide rail 400, so that the problem that the second outer pulley 1232 just on the outer side is elastically supported on the guide rail 400 easily causes insufficient rigidity to turn over the magnetic driver 100 occurs, and in order to avoid this, the number of pulleys 120 capable of providing rigid support needs to be increased on the inner side to improve the support of the magnetic driver 100, thereby ensuring the stability of the magnetic driver 100 on the circular arc section 420 of the guide rail 400.

Preferably, as shown in fig. 4, when the magnetic driver 100 moves in the arc section 420 of the guide rail 400, the number of pulleys 120 that the magnetic driver 100 contacts against the inner side of the guide rail 400 is at least five, wherein at least three pulleys 120 (a first inner pulley 1221 and a second inner pulley 1231) that can provide rigid support, and at least two pulleys 120 (a third inner pulley 1241) that can provide elastic force that acts in a direction away from the center of the arc section 420 are included; the number of the pulleys 120 of the magnetic driver 100 abutting against the outer side of the guide rail 400 is at least three, wherein the magnetic driver comprises at least one pulley 120 (a first outer pulley 1222) capable of providing rigid support and at least two pulleys 120 (a second outer pulley 1232) capable of providing elastic force with an action direction towards the center of the circular arc section 420, so that at least eight pulleys 120 of the magnetic driver 100 in the circular arc section 420 of the guide rail 400 are abutted against the guide rail 400, and the stability of the magnetic driver 100 in the guide rail 400 is ensured.

Specifically, the rotor main body 110 is a cast integral part, and the rotor main body 110 adopts a cast integral structure, so that the strength and the bearing capacity of the magnetic driver 100 can be greatly improved.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (12)

1. A magnetic drive comprising:

a mover body;

the pulleys are rotatably arranged on the rotor main body, are distributed along the transmission direction of the magnetic driver, and a gap is reserved between two pulleys in at least one group of pulleys for assembling external guide parts; and

at least one self-adapting structure, at least one pulley is through self-adapting structure swing joint in the active cell main part, self-adapting structure is used for corresponding the pulley provides towards the elasticity of clearance, makes the pulley elastic support in outside direction part.

2. The magnetic drive of claim 1, wherein the adaptive structure includes a mounting block slidably coupled to the mover body in an extending direction of the elastic force received by the pulley, the pulley is rotatably coupled to the mounting block, and both ends of the elastic member are respectively abutted to the mounting block and the mover body.

3. The magnetic drive of claim 2, wherein the pulley is disposed on a first side of the mover body, a second side of the mover body is provided with a chute corresponding to the mounting block, the mounting block is slidably disposed in the chute, and the first side and the second side are opposite sides of the mover body;

the bottom surface of spout is equipped with the through-hole, the pulley passes through the through-hole rotation connect in the installation piece.

4. The magnetic drive of claim 3, wherein the side of the mover body is further provided with a limiting channel, the limiting channel being in communication with the chute, the adaptive structure further comprising a fastener, the fastener fitting within the limiting channel;

the elastic piece is arranged in the limiting channel and the sliding groove, the mounting block is provided with a guide post, the first end of the elastic piece is sleeved outside the guide post, and the second end of the elastic piece is abutted to the fastening piece.

5. The magnetic drive of any of claims 1-4, wherein the plurality of sets of pulleys comprises a first pulley set and at least two sets of second pulley sets, the second pulley sets being disposed on opposite sides of the first pulley set;

the first pulley block comprises a first inner pulley and a first outer pulley, the second pulley block comprises a second inner pulley and a second outer pulley, the first inner pulley and the second inner pulley are positioned at the inner side of the gap, and the first outer pulley and the second outer pulley are positioned at the outer side of the gap;

the second outer side pulley is movably connected with the rotor main body through the self-adaptive structure.

6. The magnetic drive of claim 5, wherein the first inner pulley and the second inner pulley are distributed in an arc shape, and a center of the arc is located on a side of the first inner pulley away from the first outer pulley.

7. The magnetic drive of claim 6, wherein an extension of a connection line of the first outer pulley and the first inner pulley passes through a center of the circular arc.

8. The magnetic drive of claim 6, wherein the direction of the spring force provided by the adaptive structure to the second outboard pulley passes through the center of the arc.

9. The magnetic drive of claim 5, wherein the second pulley block is disposed adjacent to the first pulley block;

the plurality of groups of pulleys further comprise third pulley blocks, and the second pulley blocks and the third pulley blocks are distributed in a staggered manner in two opposite sides of the first pulley block;

the third pulley block comprises a third inner pulley and a third outer pulley, the third inner pulley is positioned at the inner side of the gap, and the third outer pulley is positioned at the outer side of the gap;

the third inner pulley is movably connected with the rotor main body through the self-adaptive structure.

10. The magnetic drive of claim 9, wherein the first outer pulley and the third outer pulley are disposed co-linearly.

11. The magnetic drive of claim 10, wherein the spring force provided by the adaptive structure to the third inner sheave is directed perpendicular to the line connecting the first outer sheave and the third outer sheave.

12. A magnetic drive transmission line, comprising:

a magnetic drive as claimed in any one of claims 1 to 11; and

and the guide rail is arranged corresponding to the gap, and the pulley is abutted against the guide rail.