CN220492794U - Motor-driven electric screw rod structure - Google Patents
Motor-driven electric screw rod structure Download PDFInfo
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- CN220492794U CN220492794U CN202321284213.2U CN202321284213U CN220492794U CN 220492794 U CN220492794 U CN 220492794U CN 202321284213 U CN202321284213 U CN 202321284213U CN 220492794 U CN220492794 U CN 220492794U
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- mounting plate
- motor
- screw
- screw rod
- shell
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- 239000000428 dust Substances 0.000 claims description 21
- 230000033001 locomotion Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a motor-driven electric screw rod structure, which comprises a shell, a first mounting plate, a second mounting plate, a driving motor and a screw rod structure, wherein the first mounting plate is arranged on the shell; wherein, one side of the shell is provided with a sliding strip; one surface of the first mounting plate is in sliding connection with the sliding strip, and the other surface of the first mounting plate is provided with a plurality of groups of mounting holes; the second mounting plate is fixedly connected to one end of the first mounting plate and protrudes towards the direction of the shell; the driving motor is arranged in the shell, the first end of the screw rod structure is fixedly connected with the second mounting plate, and the second end of the screw rod structure is slidably connected in an output shaft of the driving motor; in the in-process of using, driving motor rotates in order to force the reciprocal flexible of lead screw structure, at flexible in-process, also forces first mounting panel and second mounting panel to carry out reciprocating motion for the casing, and is used for the first mounting panel to assemble outside function module, and the cylinder of lead screw structure can not atress form the extrusion, and then does not appear lead screw structure and driving motor installation stability variation, concentricity decline condition.
Description
Technical Field
The utility model relates to the field of electric screw rod structures, in particular to a motor-driven electric screw rod structure.
Background
With the development of society, the research and application of the motor are further promoted, and the screw rod structure motor has the characteristic of converting the rotary motion of the motor into the linear motion, and can be well developed and applied in the machine tool manufacturing; the traditional screw rod structure motor mainly comprises a motor main body, a screw rod structure and a screw rod nut sleeved on the screw rod structure, wherein the screw rod structure is connected with a rotating shaft of the motor main body through a coupler, the motor main body works and rotates and drives the screw rod structure to rotate, and the screw rod nut can linearly and reciprocally slide in an external sliding groove to realize conversion from rotary motion to linear motion; however, in the above structure, the lead screw nut is responsible for installing the external functional module, and the weight of the lead screw nut to the lead screw structure is further increased, if the weight of the external functional module is large, the lead screw structure is easy to bend at this time, and the connection stability between the lead screw structure and the motor main body is affected, the concentricity of the lead screw structure and the motor structure cannot be ensured, and the working stability of the motor is affected; therefore, there is a need for an electric screw structure with a more reasonable structure to solve the above-mentioned drawbacks.
Disclosure of Invention
Aiming at the technical problems that in the prior art, the connection between the screw rod structure and a motor main body is unstable and the concentricity is reduced due to the increase of weight in the process of assembling an external functional module by an electric screw rod structure, the utility model provides a novel solution.
In order to achieve the above object, the present utility model provides a motor-driven type electric screw structure, comprising:
a sliding strip is arranged on one side of the shell;
one surface of the first mounting plate is in sliding connection with the sliding strip, and the other surface of the first mounting plate is provided with a plurality of groups of mounting holes;
the second mounting plate is fixedly connected to one end of the first mounting plate and protrudes towards the shell;
the driving motor is arranged in the shell, a first end of the screw rod structure is fixedly connected with the second mounting plate, and a second end of the screw rod structure is slidably connected in an output shaft of the driving motor;
the screw rod structure stretches along the axial direction along with the rotation of the driving motor so as to drive the first mounting plate and the second mounting plate to reciprocate.
As an improvement of the utility model, the driving motor comprises a rotor with a cavity and a screw nut, one end of the rotor is connected with the main control board, the other end of the rotor is provided with a nut sleeve, the screw nut is assembled in the nut sleeve, the screw nut is sleeved on a rod body of the screw structure, and the cavity accommodates the screw structure.
As an improvement of the utility model, the outer side of the rotor is also provided with a magnetic cylinder structure in a surrounding manner, the position corresponding to the magnetic cylinder structure in the shell is also provided with a stator mechanism, and the stator mechanism is electrically connected with the main control board.
As an improvement of the utility model, the driven motor also comprises a plurality of groups of bearing structures, the outer sides of the bearing structures are fixedly connected with the section bar of the shell, and the inner sides of the bearing structures are sleeved on the outer sides of the nut sleeves.
As an improvement of the utility model, a plurality of groups of grooves are also arranged in the circumferential direction of the nut, and the bottoms of the grooves are attached to the inner side of the bearing structure.
As an improvement of the utility model, the inner wall of the opening, which is used for avoiding the screw rod structure and extends out, of the shell is also provided with a thread structure, a spiral cover matched with the thread structure is also provided, and the middle part of the spiral cover is provided with an extending-out hole for extending out the screw rod structure.
As an improvement of the utility model, the diameter of the opening end face is the same as the outer diameter of the bearing, and one side of the rotary cover close to the rotor is abutted against the bearing structure positioned outside.
As an improvement of the utility model, a chute is arranged on one surface of the first mounting plate close to the shell, and the sliding strip is arranged in the chute to slide.
As an improvement of the utility model, the utility model further comprises a telescopic dust cover, wherein the telescopic dust cover is sleeved on the screw rod structure, the first end of the dust cover is fixedly connected with the second mounting plate, and the second end of the dust cover is fixedly connected with one surface of the spiral cover, which is far away from the rotor.
As an improvement of the utility model, the telescopic dust cover is in a cone shape in section as a whole, and is formed by a plurality of telescopic joints, the telescopic joints are connected back and forth, and any telescopic joint is accommodated in the adjacent telescopic joint along with the retraction of the screw rod structure.
The beneficial effects of the utility model are as follows: compared with the prior art, the motor-driven electric screw rod structure provided by the utility model comprises a shell, a first mounting plate, a second mounting plate, a driving motor and a screw rod structure; wherein, one side of the shell is provided with a sliding strip; one surface of the first mounting plate is in sliding connection with the sliding strip, and the other surface of the first mounting plate is provided with a plurality of groups of mounting holes; the second mounting plate is fixedly connected to one end of the first mounting plate and protrudes towards the direction of the shell; the driving motor is arranged in the shell, the first end of the screw rod structure is fixedly connected with the second mounting plate, and the second end of the screw rod structure is slidably connected in an output shaft of the driving motor; the driving motor rotates to force the screw rod structure to stretch back and forth, in the stretch back and forth process, the first mounting plate and the second mounting plate are also forced to do reciprocating motion relative to the shell, and the first mounting plate is used for assembling an external functional module, the cylindrical surface of the screw rod structure cannot be stressed to form extrusion, and further the situation that the mounting stability of the screw rod structure and the driving motor is poor and concentricity is reduced does not occur.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is an exploded view of the present utility model;
FIG. 3 is a cross-sectional view of the present utility model;
fig. 4 is an exploded view of the structure of the driving motor of the present utility model.
The main reference numerals are as follows:
1. a housing; 11. an opening; 12. a thread structure; 13. screwing the cover; 131. a protruding hole;
14. sliding the strip;
2. a first mounting plate; 21. a chute;
3. a second mounting plate;
4. a driving motor; 41. a rotor; 42. a screw nut; 43. a nut sleeve; 431. a groove;
44. a magnetic cylinder structure; 45. a bearing mechanism;
5. a screw rod structure;
6. a telescopic dust cover.
Detailed Description
In order to more clearly illustrate the utility model, the utility model is further described below with reference to the accompanying drawings.
In the following description, details of selected examples are given to provide a more thorough understanding of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. It should be understood that the detailed description is intended to illustrate the utility model, and is not intended to limit the utility model.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
With the development of society, the research and application of the motor are further promoted, and the screw rod structure motor has the characteristic of converting the rotary motion of the motor into the linear motion, and can be well developed and applied in the machine tool manufacturing; the traditional screw rod structure motor mainly comprises a motor main body, a screw rod structure and a screw rod nut sleeved on the screw rod structure, wherein the screw rod structure is connected with a rotating shaft of the motor main body through a coupler, the motor main body works and rotates and drives the screw rod structure to rotate, and the screw rod nut can linearly and reciprocally slide in an external sliding groove to realize conversion from rotary motion to linear motion; however, in the above structure, the lead screw nut is responsible for installing the external functional module, and the weight of the lead screw nut to the lead screw structure is further increased, if the weight of the external functional module is large, the lead screw structure is easy to bend at this time, and the connection stability between the lead screw structure and the motor main body is affected, the concentricity of the lead screw structure and the motor structure cannot be ensured, and the working stability of the motor is affected; therefore, there is a need for an electric screw structure with a more reasonable structure to solve the above-mentioned drawbacks.
In order to solve the above technical problems, the present utility model provides a motor-driven electric screw structure, please refer to fig. 1 to 4, which includes a housing 1, a first mounting plate 2, a second mounting plate 3, a driving motor 4 and a screw structure 5; wherein, one side of the shell 1 is provided with a sliding strip 14; one surface of the first mounting plate 2 is in sliding connection with the sliding strip slide 14, and the other surface of the first mounting plate is provided with a plurality of groups of mounting holes; the second mounting plate 3 is fixedly connected to one end of the first mounting plate 2 and protrudes towards the direction of the shell, and the second mounting plate 3 can be naturally provided with mounting holes on any surface, so that any functional component can be assembled on the first mounting plate 2 and/or the second mounting plate 3 according to actual requirements; the driving motor 4 is arranged in the shell 1, a first end of the screw rod structure 5 is fixedly connected with the second mounting plate 3, and a second end of the screw rod structure is slidably connected in an output shaft of the driving motor 4; the driving motor 4 rotates to force the screw rod structure 5 to stretch back and forth, in the stretch back and forth process, also force the first mounting panel 2 and the second mounting panel 3 to reciprocate for the casing, and be used for the first mounting panel 2 to assemble outside function module, the cylinder of screw rod structure 5 can not atress form the extrusion, under the condition that first mounting panel 2 and second mounting panel 3 mutually fixed fit, the main bearing surface is the sliding connection part of sliding strip 14 and first mounting panel 2, and then screw rod structure 5 and driving motor 4 installation stability variation does not appear, concentricity decline condition for the whole work of electronic screw structure is more stable.
In a specific scheme, the driving motor 4 comprises a rotor 41 with a cavity and a screw nut 42, one end of the rotor 41 is connected with the main control board, the other end of the rotor is provided with a nut sleeve 43, the screw nut 42 is assembled in the nut sleeve 43, the screw nut 42 is sleeved on a rod body of the screw structure 5, and the cavity accommodates the screw structure 5; the main control board comprises coding components such as a code disc, a code deflection chip, a PCB (printed circuit board) and the like and is used for controlling the rotation number and the rotation direction of the rotor 41 so as to be converted into a required reciprocating path distance; the screw nut 42 is a ball screw nut, the outer side of the screw nut 42 is fixedly assembled in the nut sleeve 43, the outer side of the screw nut 42 and the nut sleeve 43 keep static to rotate along with the rotor 41 under the driving of magnetic force, and the screw 5 structure is driven to realize reciprocating extension, and the screw 5 structure is driven to fixedly arrange the second mounting plate 3 to reciprocate in the extension process, and at the moment, the first mounting plate 2 fixedly connected with the second mounting plate 3 slides back and forth on one side of the shell 1; and the rotor and the screw rod structure 5 can be connected without adopting a coupler, so that the product cost is reduced, and the problem of insufficient concentricity caused by insufficient accuracy of the coupler is solved.
More specifically, the outer side of the rotor 41 is also provided with a magnetic cylinder structure 44 in a surrounding manner, and the position in the shell 1 corresponding to the magnetic cylinder structure is also provided with a stator structure (not shown), and the stator structure is electrically connected to the main control board; the main control board encodes through the staff, inputs the power instruction, and stator structure provides magnetic force, and magnetic cylinder structure 44 is driving the rotor and rotates, and rotor 41 rotates and then makes the first end of lead screw structure 5 can reciprocating motion in the cavity, and the second end then provides the power of push-and-pull to second mounting panel 3, and the second mounting panel 3 that first mounting panel 2 then follows reciprocates.
In order to further increase the structural rationality of the rotation of the rotor 42, in this embodiment, the driving motor 4 further includes a plurality of groups of bearing structures 45, the outer sides of the bearing structures 45 are fixedly connected to the section bar of the housing 1, and the inner sides are sleeved on the outer sides of the nut sleeves 43; on the one hand, the bearing structure 45 is sleeved on the cylindrical surface of the nut sleeve 43, so that the whole support of the rotor 42 is realized, the rotor 42 can be stably assembled in the shell 1 without deviation, the concentricity of the rotor 42 and the screw rod structure 5 is ensured, and the flow property of the rotor 41 is further ensured; preferably, the bearing structure 45 adopts a ball bearing type, so that the smoothness is higher, and the flow of reciprocating motion is further improved.
In order to make the overall structure more compact, in this embodiment, the nut sleeve 43 is further provided with a plurality of groups of grooves 431 in the direction, and the bottoms of the grooves 431 are attached to the inner side of the bearing structure 45; it will be appreciated that the provision of the recess 431 not only further increases the stability of assembly, but also further maintains a better concentricity, and the collar formed by the recess 431 is also able to conform to the bearing structure 45 for ease of installation.
In this embodiment, in order to make dust invade into the housing 1 during rotation, which causes bad performance influence, in this embodiment, the inner wall of the opening 1 where the housing 1 dodges the screw rod structure 5 and protrudes is further provided with a threaded structure 12, a screw cap 13 adapted to the threaded structure 12 is further provided, and an extending hole 131 for the screw rod structure to protrude is provided in the middle of the screw cap 13; the shell 1 is sealed through the spiral cover 13, so that the stability of the screw rod structure 13 and the driving motor 4 is further ensured.
In a more preferable scheme, the diameter of the end face of the opening 1 is the same as the outer diameter of the bearing structure 45, and one side of the rotary cover 13, which is close to the rotor 41, is propped against the bearing structure 45 positioned outside; the screw cap 13 is enlarged corresponding to the opening 11, and the convex ring formed by the groove 431 further provides a tightening supporting point by pressing one surface of the bearing structure 15 by the screw cap 13, so that the structure is more compact.
In this embodiment, a sliding groove 21 is formed on one surface of the first mounting plate 2 close to the housing, and the sliding strip 14 slides in the sliding groove 21; it will be appreciated that the arrangement of the chute 21 can further ensure the sliding flow of the first mounting plate 2.
In order to cope with different use environments, dust prevention is necessary for the external part of the screw rod structure 5, dust accumulation is easy to occur, and dust is caused to retract into the shell 1 along with the screw rod structure, so in the embodiment, the device further comprises a telescopic dust cover 6, the telescopic dust cover 6 is sleeved on the screw rod structure 5, a first end of the telescopic dust cover 6 is fixedly connected with the second mounting plate 2, and a second end of the telescopic dust cover 6 is fixedly connected with one surface of the rotary cover 131 away from the rotor 41; the middle part of flexible dirt proof boot 6 can realize freely stretching out and drawing back, and carries out the cage to lead screw structure 5 part, prevents the invasion of dust.
In a specific scheme, the whole telescopic dust cover 6 is cone-shaped in section and is formed by a plurality of telescopic joints, the telescopic joints are connected back and forth, and any telescopic joint is accommodated in the adjacent telescopic joint along with the telescopic accommodation of the screw rod structure; it is easy to understand that the telescopic joint at the tail end has the largest volume, and all telescopic joints except the telescopic joint can be accommodated, the telescopic performance of the screw rod structure cannot be affected, the whole structure can be smaller, and the telescopic joint is further applied to industries, laser cutting, robot fields and the like with higher volume requirements.
The utility model has the advantages that:
1) The driving motor rotates to force the screw rod structure to reciprocate and stretch out and draw back, in the process of stretching and draw back, the first mounting plate and the second mounting plate are also forced to reciprocate relative to the shell, the first mounting plate is used for assembling an external functional module, the cylindrical surface of the screw rod structure cannot be stressed to form extrusion, under the condition that the first mounting plate and the second mounting plate are mutually fixedly matched, the main stress surface is a sliding connection part of the sliding strip and the first mounting plate, further, the situation that the mounting stability of the screw rod structure and the driving motor is poor and the concentricity is reduced is avoided, and the whole work of the electric screw rod structure is more stable;
2) The rotor of the driving motor and the screw nut can form a good matching structure, synchronous rotation between the rotor and the screw nut is realized, errors are reduced, precision is improved, force control is facilitated, and the device is suitable for the field of high-precision positioning;
3) Reasonable assembly is carried out through the casing formation between rotor and the stator structure for the product has the characteristic that the structure is small and exquisite.
The above disclosure is only a few specific embodiments of the present utility model, but the present utility model is not limited thereto, and any changes that can be thought by those skilled in the art should fall within the protection scope of the present utility model.
Claims (10)
1. A motor-driven, electrically powered lead screw structure, comprising:
a sliding strip is arranged on one side of the shell;
one surface of the first mounting plate is in sliding connection with the sliding strip, and the other surface of the first mounting plate is provided with a plurality of groups of mounting holes;
the second mounting plate is fixedly connected to one end of the first mounting plate and protrudes towards the shell;
the driving motor is arranged in the shell, a first end of the screw rod structure is fixedly connected with the second mounting plate, and a second end of the screw rod structure is slidably connected in an output shaft of the driving motor;
the screw rod structure rotates along with the driving motor and stretches along the axial direction, so that the first mounting plate and the second mounting plate are driven to reciprocate.
2. The motor-driven electric screw structure according to claim 1, wherein the driving motor comprises a rotor with a cavity and a screw nut, one end of the rotor is connected with the main control board, the other end of the rotor is provided with a nut sleeve, the screw nut is assembled in the nut sleeve, the screw nut is sleeved on a rod body of the screw structure, and the cavity accommodates the screw structure.
3. The motor-driven type electric screw rod structure according to claim 2, wherein a magnetic cylinder structure is further arranged on the outer side of the rotor in a surrounding mode, a stator structure is further arranged in the housing at a position corresponding to the magnetic cylinder structure, and the stator structure is electrically connected to the main control board.
4. A motor-driven electric screw structure according to claim 3, wherein the driven motor further comprises a plurality of groups of bearing structures, the outer sides of the bearing structures are fixedly connected to the section bar of the shell, and the inner sides of the bearing structures are sleeved on the outer sides of the nut sleeves.
5. The motor-driven type electric screw structure according to claim 4, wherein a plurality of groups of grooves are further formed in the circumferential direction of the nut, and the bottoms of the grooves are attached to the inner side of the bearing structure.
6. The motor-driven electric screw structure according to claim 5, wherein the housing is formed with an opening at a position where the screw structure extends out while avoiding the screw structure, a threaded structure is further provided on an inner wall of the opening, a screw cap adapted to the threaded structure is further provided, and an extending hole for extending out of the screw structure is provided in a middle portion of the screw cap.
7. The motor-driven type electric screw structure according to claim 6, wherein the diameter of the opening end face is the same as the outer diameter of the bearing structure, and the side of the screw cap close to the rotor abuts against the bearing structure located outside.
8. The motor-driven type electric screw structure according to claim 7, wherein a sliding groove is formed in a surface, close to the shell, of the first mounting plate, and the sliding strip is placed in the sliding groove to slide.
9. The motor-driven type electric screw rod structure according to claim 8, further comprising a telescopic dust cover, wherein the telescopic dust cover is sleeved on the screw rod structure, a first end of the telescopic dust cover is fixedly connected with the second mounting plate, and a second end of the telescopic dust cover is fixedly connected to one surface of the rotary cover, which is far away from the rotor.
10. The motor-driven type electric screw structure according to claim 9, wherein the telescopic dust cover is formed by a plurality of telescopic joints, the telescopic joints are connected back and forth, and any telescopic joint is accommodated in an adjacent telescopic joint following retraction of the screw structure.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321284213.2U CN220492794U (en) | 2023-05-25 | 2023-05-25 | Motor-driven electric screw rod structure |
| JP2023002091U JP3243249U (en) | 2023-05-25 | 2023-06-15 | Motorized electric lead screw structure |
| TW112206500U TWM650352U (en) | 2023-05-25 | 2023-06-26 | Motor-driven electric screw structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321284213.2U CN220492794U (en) | 2023-05-25 | 2023-05-25 | Motor-driven electric screw rod structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220492794U true CN220492794U (en) | 2024-02-13 |
Family
ID=87562050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321284213.2U Active CN220492794U (en) | 2023-05-25 | 2023-05-25 | Motor-driven electric screw rod structure |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3243249U (en) |
| CN (1) | CN220492794U (en) |
| TW (1) | TWM650352U (en) |
-
2023
- 2023-05-25 CN CN202321284213.2U patent/CN220492794U/en active Active
- 2023-06-15 JP JP2023002091U patent/JP3243249U/en active Active
- 2023-06-26 TW TW112206500U patent/TWM650352U/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JP3243249U (en) | 2023-08-14 |
| TWM650352U (en) | 2024-01-11 |
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