CN213176688U - Lead screw assembly of straight line module - Google Patents
Lead screw assembly of straight line module Download PDFInfo
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- CN213176688U CN213176688U CN202021841069.4U CN202021841069U CN213176688U CN 213176688 U CN213176688 U CN 213176688U CN 202021841069 U CN202021841069 U CN 202021841069U CN 213176688 U CN213176688 U CN 213176688U
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Abstract
The utility model discloses a lead screw assembly of sharp module, including base, servo motor and screw rod, threaded connection has the transmission seat on the screw rod, two turning positions in the inside bottom of base locate the spacing of equal bolt fixedly connected with of department, and the top of spacing all sets up flutedly, two turning positions fixedly connected with kellies in the bottom of transmission seat, and the inside of kellies is slided and is inlayed the ball to the ball slides and inlays in the recess. The utility model discloses in, carry out the transmission through the screw rod to the transmission seat position, the transmission seat is in the motion process, and the linkage connecting rod moves, and the ball rolls promptly in the recess, changes sliding friction power and is rolling friction, and the influence that reduction friction brought the device, simultaneously, because the recess is to the limiting displacement of ball for carry out the same transform of sliding friction that the level was spacing to the transmission and produce rolling friction, further reduce the influence of friction to the device, the hoisting device performance.
Description
Technical Field
The utility model relates to a sharp module technical field especially relates to a lead screw assembly of sharp module.
Background
The linear module has several names, namely a linear module, a rectangular coordinate robot, a linear sliding table and the like, and is an automatic upgrading unit of a linear guide rail, a linear motion module and a ball screw linear transmission mechanism; the linear and curvilinear motion of the load can be realized through the combination of all the units, so that the automation of the light load is more flexible and the positioning is more accurate.
The existing linear module still has certain defects in the using process, although the friction of the linear module using the ball screw is small in the using process, the balls inside the linear module are used for a long time, and the linear module is not convenient to replace when being worn, so that the precision of the linear module is reduced, and the use is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lead screw assembly of sharp module has solved among the prior art ball and has produced the not convenient to change after wearing and tearing, and the big, the poor problem of precision of wearing and tearing.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a lead screw assembly of sharp module, includes the base, the top bolt fixedly connected with apron of base, horizontal one end one side of base is provided with servo motor, and the inside of base rotates and is connected with the screw rod, and the transmission is connected between servo motor and the screw rod, threaded connection has the transmission seat on the screw rod, two turning positions in the inside bottom of base locate the equal spacing of bolt fixedly connected with of department, and the top of spacing all seted up the recess, two turning positions fixedly connected with kellies in the bottom of transmission seat, and the inside cunning of kellies has the ball to the ball cunning inlays in the recess.
Preferably, spacing strip cross-section is right angle arrow structure, and arrow point one end is towards the base, through bolt fixed connection to spacing strip is isometric with the setting of base.
Preferably, the cross section of the groove is of an arc structure, the arc is of a major arc shape, and the opening end of the groove is parallel to the diameter.
Preferably, one end of the clamping rod close to the ball is of a major arc C-shaped structure, the cross section of the clamping rod is of a minor arc C-shaped structure, the thickness of the clamping rod is smaller than the diameter of the ball, and the ball is connected to the inner side of the clamping rod in a rolling mode.
Preferably, the central axes of the limiting strip and the clamping rod are positioned on the same straight line, and the clamping rod is fixedly connected with the transmission seat to form a 45-degree chamfer structure.
Preferably, the base cross-section is U-shaped structure, and has the clearance between base and the apron, the transmission seat slides in the clearance, and up end and lower terminal surface do not all contact between with base and the apron.
Preferably, one end of the screw rod, which is close to the servo motor, is sleeved with a third gear disc, and the output shaft of the servo motor is sleeved with another third gear disc.
Preferably, the base is close to servo motor horizontal one end fixedly connected with regulating box, and the inside two gear sets that are provided with of regulating box, one is coaxial in two gear sets is provided with first toothed disc and third toothed disc, and meshes the transmission between the third toothed disc on first toothed disc and the screw rod.
Preferably, the other of the two gear sets is coaxially provided with a second gear disc and a third gear disc, and the second gear disc and the third gear disc on the screw are in meshing transmission.
Preferably, one side of the adjusting box, which is close to the servo motor, is provided with a horizontal straight groove opening, an output shaft of the servo motor penetrates through the straight groove opening and extends to the inside of the adjusting box, a third gear disc on the output shaft of the servo motor is arranged corresponding to the third gear disc in the two gear sets, a hydraulic rod is fixedly connected to the adjusting box, is perpendicular to the axial direction of the output shaft of the servo motor and is parallel to the straight groove opening, and the output end of the hydraulic rod is fixedly connected with the servo motor.
The utility model discloses possess following beneficial effect at least:
1. the transmission seat is driven by the screw rod, the linkage connecting rod moves in the moving process of the transmission seat, the ball rolls in the groove, sliding friction force is changed into rolling friction, the influence of friction on the device is reduced, and meanwhile, the sliding friction generated at the position for horizontally limiting the transmission is changed into rolling friction due to the limiting effect of the groove on the ball, so that the influence of the friction on the device is further reduced, and the performance of the device is improved.
2. When servo motor transmitted first toothed disc, because the speed is the same, and first toothed disc diameter is greater than the third toothed disc, thereby third toothed disc pivoted number of turns is more than first toothed disc, therefore can carry out more swift transmission to the transmission seat on the screw rod, and when meshing between changing second toothed disc and the third toothed disc, under the same transmission effect, the second toothed disc rotated the number of turns and is greater than the third toothed disc, thereby make the third toothed disc can obtain higher precision at the rotation in-process, promote the controllability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Figure 1 shows an isometric view of a lead screw assembly of the present invention;
FIG. 2 shows a partial cross-sectional block diagram of the lead screw assembly of the present invention;
FIG. 3 shows a base structure view of the screw assembly of the present invention;
fig. 4 shows a gear train structure diagram of the screw assembly of the present invention.
In the figure: 1. a base; 2. a cover plate; 3. a transmission seat; 4. an adjusting box; 5. a servo motor; 6. a hydraulic lever; 7. a straight notch; 8. a screw; 9. a limiting strip; 10. a groove; 11. a clamping rod; 12. a ball bearing; 13. a first gear plate; 14. a second gear wheel disc; 15. a third gear plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
as shown in fig. 1 to 4, the present embodiment provides a lead screw assembly of a linear module, which includes: base 1, base 1's top bolt fixedly connected with apron 2, base 1's horizontal one end one side is provided with servo motor 5, and base 1's inside is rotated and is connected with screw rod 8, the transmission is connected between servo motor 5 and the screw rod 8, threaded connection has transmission seat 3 on the screw rod 8, two turning positions department equal bolt fixedly connected with spacing 9 in base 1's inside bottom, and the top of spacing 9 all seted up recess 10, two turning positions fixedly connected with kelly 11 in transmission seat 3's bottom, and the inside cunning of kelly 11 has ball 12, and ball 12 cunning inlays in recess 10.
Specifically, as shown in fig. 2-3, the cross-section of the limiting strip 9 is a right-angle arrow-shaped structure, and arrow head one end faces the base 1, through bolt fixed connection, and the equal length setting of the limiting strip 9 and the base 1, the cross-section of the groove 10 is an arc-shaped structure, and the arc is a major arc, and the open end of the groove 10 is parallel to the diameter setting, the one end of the clamping rod 11 close to the ball 12 is a major arc-shaped C-shaped structure, and the cross-section of the clamping rod 11 is a minor arc-shaped C-shaped structure, and the thickness of the clamping rod 11 is smaller than the diameter of the ball 12, the ball 12 is connected in the inner side of the clamping rod 11 in a rolling manner, the central axes of the limiting strip 9 and the clamping rod 11 are located on the same straight.
Example 2:
the difference between this embodiment and embodiment 1 is that, as shown in fig. 1-3, the cross section of the base 1 is U-shaped, a gap is formed between the base 1 and the cover 2, the transmission seat 3 slides in the gap, and neither the upper end surface nor the lower end surface is in contact with the base 1 and the cover 2.
Meanwhile, one end of the screw 8 close to the servo motor 5 is sleeved with a third gear disc 15, the output shaft of the servo motor 5 is sleeved with another third gear disc 15, one horizontal end of the base 1 close to the servo motor 5 is fixedly connected with an adjusting box 4, two gear sets are arranged in the adjusting box 4, one of the two gear sets is coaxially provided with a first gear disc 13 and a third gear disc 15, the first gear disc 13 is in meshing transmission with the third gear disc 15 on the screw 8, the other one of the two gear sets is coaxially provided with a second gear disc 14 and a third gear disc 15, the second gear disc 14 is in meshing transmission with the third gear disc 15 on the screw 8, one side of the adjusting box 4 close to the servo motor 5 is provided with a horizontal straight notch 7, the output shaft of the servo motor 5 penetrates through the straight notch 7 and extends into the adjusting box 4, the third gear disc 15 on the output shaft of the servo motor 5 is arranged corresponding to the third gear disc 15 in the two gear sets, the adjusting box 4 is fixedly connected with a hydraulic rod 6 which is perpendicular to the axial direction of an output shaft of the servo motor 5 and is parallel to the straight notch 7, and the output end of the hydraulic rod 6 is fixedly connected with the servo motor 5.
When the hydraulic device works, the servo motor 5 is started to rotate, the output shaft of the servo motor 5 is in transmission connection with the third gear disc 15 to rotate, the servo motor 5 respectively transmits the first gear disc 13 and the second gear disc 14 at two sides through the regulation and control of the hydraulic rod 6, when the servo motor 5 transmits the first gear disc 13, as the linear speeds of the first gear disc 13 and the third gear disc 15 sleeved on the screw rod 8 are the same, but the diameter of the first gear disc 13 is larger than that of the third gear disc 15, so that the number of rotating turns of the third gear disc 15 is larger than that of the first gear disc 13, the transmission seat 3 on the screw rod 8 can be transmitted more quickly, and when the meshing between the second gear disc 14 and the third gear disc 15 is replaced, the number of rotating turns of the second gear disc 14 is larger than that of the third gear disc 15 under the same transmission effect, so that the third gear disc 15 can obtain higher accuracy in the rotating process, the controllability is improved; screw rod 8 slides in the inside of rotation in-process transmission seat 3 at base 1, and simultaneously, 11 inboard inlays the ball 12 of establishing and rolls in the inside recess 10 of spacing 9 of kelly, because ball 12 is on a parallel with kelly 11 both sides all with the recess between 10 laminating, make ball 12 carry on spacingly to transmission seat 3's position simultaneously, all change transmission seat 3 and external connection's mode into roll connection with this, the frictional force between transmission seat 3 and the device has been reduced, and simultaneously, when ball 12 or recess 10 took place wearing and tearing, can accomplish convenient change after taking off its bolt.
To sum up, the utility model discloses a screw rod transmits transmission seat position, changes the sliding friction power into rolling friction, reduces the influence that the friction brought to the device, simultaneously, because the limiting displacement of recess to the ball makes the sliding friction who carries out horizontal spacing position production to the transmission change into rolling friction equally, further reduces the influence of friction to the device, promotes the device performance; simultaneously, utilize the transmission cooperation of first toothed disc, second toothed disc, third toothed disc to obtain higher precision, promote the nature controlled.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a lead screw assembly of straight line module, includes base (1), top bolt fixedly connected with apron (2) of base (1), horizontal one end one side of base (1) is provided with servo motor (5), and the inside of base (1) rotates and is connected with screw rod (8), and the transmission is connected between servo motor (5) and screw rod (8), threaded connection has transmission seat (3) on screw rod (8), its characterized in that, two equal bolt fixedly connected with spacing (9) of the inside bottom position department of base (1), and the top of spacing (9) all sets up fluted (10), two corner position fixedly connected with kelly (11) in bottom of transmission seat (3), and the inside sliding of kelly (11) has ball (12) to ball (12) sliding inlays in recess (10).
2. The screw assembly according to claim 1, wherein the cross section of the limiting strip (9) is in a right-angle arrow-shaped structure, one end of the arrow faces the base (1) and is fixedly connected with the base through a bolt, and the limiting strip (9) is arranged at equal length with the base (1).
3. A screw assembly according to claim 1, wherein the groove (10) is arc-shaped in cross-section, and the arc is a major arc, and the open end of the groove (10) is arranged parallel to the diameter.
4. A screw assembly as recited in claim 1, wherein the end of the clamping rod (11) near the ball (12) is in a C-shaped structure with a major arc shape, the cross section of the clamping rod (11) is in a C-shaped structure with a minor arc shape, the thickness of the clamping rod (11) is smaller than the diameter of the ball (12), and the ball (12) is connected with the inner side of the clamping rod (11) in a rolling manner.
5. The screw assembly according to claim 2, wherein the central axes of the limiting strip (9) and the clamping rod (11) are located on the same straight line, and the clamping rod (11) and the transmission seat (3) are fixedly connected at a position with a 45-degree chamfer angle.
6. The screw assembly according to claim 1, wherein the base (1) is of a U-shaped cross section, a gap is formed between the base (1) and the cover plate (2), the transmission seat (3) slides in the gap, and the upper end surface and the lower end surface are not in contact with the base (1) and the cover plate (2).
7. The screw assembly according to claim 1, characterized in that one end of the screw (8) close to the servo motor (5) is sleeved with a third gear disc (15), and the output shaft of the servo motor (5) is sleeved with another third gear disc (15).
8. The screw assembly according to claim 1, wherein an adjusting box (4) is fixedly connected to one end of the base (1) close to the horizontal direction of the servo motor (5), two gear sets are arranged inside the adjusting box (4), a first gear disc (13) and a third gear disc (15) are coaxially arranged on one of the two gear sets, and the first gear disc (13) and the third gear disc (15) on the screw (8) are in meshing transmission.
9. Screw assembly according to claim 8, wherein the other of the two gear sets is coaxially provided with a second toothed disc (14) and a third toothed disc (15), and the second toothed disc (14) and the third toothed disc (15) on the screw (8) are in meshing transmission.
10. The screw assembly according to claim 8, wherein a horizontal straight notch (7) is formed in one side of the adjusting box (4) close to the servo motor (5), an output shaft of the servo motor (5) penetrates through the straight notch (7) and extends into the adjusting box (4), a third gear disc (15) on the output shaft of the servo motor (5) is arranged corresponding to the third gear disc (15) in the two gear sets, a hydraulic rod (6) which is perpendicular to the axial direction of the output shaft of the servo motor (5) and parallel to the straight notch (7) is fixedly connected to the adjusting box (4), and the output end of the hydraulic rod (6) is fixedly connected to the servo motor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021841069.4U CN213176688U (en) | 2020-08-28 | 2020-08-28 | Lead screw assembly of straight line module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021841069.4U CN213176688U (en) | 2020-08-28 | 2020-08-28 | Lead screw assembly of straight line module |
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| Publication Number | Publication Date |
|---|---|
| CN213176688U true CN213176688U (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021841069.4U Active CN213176688U (en) | 2020-08-28 | 2020-08-28 | Lead screw assembly of straight line module |
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| CN (1) | CN213176688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024020837A1 (en) * | 2022-07-27 | 2024-02-01 | 宁德时代新能源科技股份有限公司 | Winding needle assembly and winding device |
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2020
- 2020-08-28 CN CN202021841069.4U patent/CN213176688U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024020837A1 (en) * | 2022-07-27 | 2024-02-01 | 宁德时代新能源科技股份有限公司 | Winding needle assembly and winding device |
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