CN211501492U - Transmission structure for lifting system and lifting system for electric lifting platform - Google Patents
Transmission structure for lifting system and lifting system for electric lifting platform Download PDFInfo
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- CN211501492U CN211501492U CN201921384720.7U CN201921384720U CN211501492U CN 211501492 U CN211501492 U CN 211501492U CN 201921384720 U CN201921384720 U CN 201921384720U CN 211501492 U CN211501492 U CN 211501492U
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Abstract
The utility model provides a transmission structure for operating system relates to mechanical elevating gear technical field, has solved among the operating system through single-stage worm gear speed reduction transmission, the poor technical problem of single-stage worm gear self-locking between driving piece and the lead screw. The device comprises a self-locking worm and gear mechanism and a reduction gear set, wherein the self-locking worm and gear mechanism is connected with a driving device, the self-locking worm and gear mechanism is in transmission connection with the reduction gear set, the reduction gear set is connected with an executing mechanism, and the reduction gear set can reduce the torque transmitted to the worm and gear mechanism by the executing mechanism so as to increase the self-locking capacity of the self-locking worm and gear mechanism. The utility model is used for promote worm gear's auto-lock ability.
Description
Technical Field
The utility model belongs to the technical field of mechanical elevating gear technique and specifically relates to a transmission structure for operating system and operating system for electric lift platform are related to.
Background
An existing electric lifting table or lifting platform is generally provided with a lifting system at a telescopic position of the electric lifting table or lifting platform so as to lift a table top or a platform, wherein the lifting system generally comprises a driver and at least one linear driving device, the top of the linear driving device is connected with a motor shell, and the driver is arranged in the motor shell; the linear driving device comprises an outer tube and an inner tube which slide relatively, the outer tube is fixedly connected with the motor shell, a base with a threaded hole in the center is installed in an inner hole of the inner tube, a lead screw is connected with the inner thread of the threaded hole, the driving end of the lead screw is connected with a rotating shaft of the driver, and the driver drives the lead screw to rotate, so that the base and the inner tube move along the length direction of the lead screw, and the lifting action of the linear driving device is realized.
The applicant has found that the prior art has at least the following technical problems:
in the existing lifting system, a driving piece and a screw rod are in speed reduction transmission through a single-stage worm gear, and the self-locking force difference of the single-stage worm gear is poor;
when the worm wheel and the worm in the existing lifting system are subjected to single-stage speed reduction, the bearing force between the worm wheel and the worm is large, and the abrasion degree is large;
the existing lifting system is not closed, and the noise generated when a driver operates or a transmission structure is relatively high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a transmission structure and electrical lift platform for operating system to there is through single-stage worm gear reduction transmission, the poor technical problem of single-stage worm gear self-locking between driving piece and the lead screw among the operating system in solving prior art. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of transmission structure for operating system, including auto-lock worm gear mechanism, reduction gear group and fourth gear, auto-lock worm gear mechanism is connected with drive arrangement, and auto-lock worm gear mechanism is connected with the reduction gear group transmission, and reduction gear group is connected with actuating mechanism through the fourth gear, and the fourth gear sets up with the worm is coaxial from auto-lock worm gear mechanism, and reduction gear group can reduce the moment of torsion that actuating mechanism passed to auto-lock worm gear mechanism in order to increase auto-lock worm gear mechanism auto-lock ability.
Alternatively or preferably, the reduction gear set is at least one stage of reduction mechanism.
Optionally or preferably, the reduction gear set comprises a first gear, a second gear and a third gear, the first gear is coaxially connected with a worm wheel of the self-locking worm and gear mechanism, the first gear is meshed with the second gear and forms a first-stage reduction, the third gear is coaxially connected with the second gear, the third gear is meshed with a fourth gear to form a second-stage reduction, and the fourth gear is connected with the executing mechanism.
Alternatively or preferably, the first gear and the worm wheel are in an integrally formed structure or are connected through a rotating shaft;
the second gear and the third gear are of an integrally formed structure or are connected through a rotating shaft.
Optionally or preferably, the third gear and the fourth gear are both bevel gears, the fourth gear is arranged above the self-locking worm gear mechanism, and the fourth gear and the worm of the self-locking worm gear mechanism are coaxially arranged.
Alternatively or preferably, the worm of the self-locking worm and gear mechanism is arranged vertically, the worm is connected with the driving device, and the second gear is arranged on one side of the first gear, which is close to the worm axis.
Optionally or preferably, the self-locking worm and gear mechanism comprises a worm and at least two worm gears, the worm gears being distributed along the circumferential direction of the worm; the first gear, the second gear and the third gear form a transmission main body mechanism, and each worm gear is connected with the fourth gear through the transmission main body mechanism.
Alternatively or preferably, the transmission body mechanism is located between the fourth gear and the drive means.
Optionally or preferably, the transmission structure for a lifting system further comprises: the outer tube body, the driving device, the self-locking worm and gear mechanism and the reduction gear set are located in the outer tube body.
A lifting system for an electric lifting platform comprises a transmission structure for the lifting system.
The utility model provides a pair of transmission structure for operating system uses auto-lock worm gear mechanism and reduction gear group combination, and reduction gear group can change turning moment, makes actuating mechanism pass to the moment of torsion between worm wheel 2 and worm 1 and diminishes, and auto-lock worm gear mechanism can support heavier object through the self-locking action of self, has strengthened auto-lock worm gear mechanism's auto-lock ability.
The utility model discloses preferred technical scheme can also produce following technological effect at least:
1. the driving device is directly arranged in the outer tube body, noise generated by the driving device in the closed space is isolated by the outer tube body, and the noise transmitted to the outside by the driving device is small;
2. the utility model discloses a fourth gear and auto-lock worm gear mechanism's the coaxial setting of worm, this mode of setting make drive arrangement set up direction and elevating gear direction of motion syntropy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a transmission structure for an elevator system according to an embodiment of the present invention;
fig. 2 is a partially enlarged view of a transmission structure for an elevator system according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a connection between a worm gear and a plurality of transmission main mechanisms of a transmission structure for a lifting system according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating a connection between a single-group transmission main mechanism and a worm gear of a transmission structure for an elevator system according to an embodiment of the present invention
Fig. 5 is a schematic view of an external structure of a lifting system for an electric lifting table or a lifting platform according to an embodiment of the present invention;
fig. 6 is a sectional view of a transmission structure for a lifting system according to an embodiment of the present invention, showing a lifting system for an electric lifting table or a lifting platform;
in the figure 1, a worm; 2. a worm gear; 3. a first gear; 4. a second gear; 5. a third gear; 6. a fourth gear; 7. an outer tubular body; 8. an electric motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the utility model provides a transmission structure for operating system, including auto-lock worm gear mechanism, reduction gear group and fourth gear 6, wherein, auto-lock worm gear mechanism is connected with drive arrangement, and auto-lock worm gear mechanism is connected with the reduction gear group transmission, and reduction gear group is connected with actuating mechanism through the fourth gear, and fourth gear 6 sets up with auto-lock worm gear mechanism's worm is coaxial, and reduction gear group can reduce the moment of torsion that actuating mechanism passed to auto-lock worm gear mechanism in order to increase auto-lock worm gear mechanism auto-lock ability. The utility model discloses use auto-lock worm gear mechanism and reduction gear group combination, reduction gear group can change turning torque, makes actuating mechanism pass to worm wheel 2 and worm 1 within a definite time the moment of torsion diminish, and auto-lock worm gear mechanism can support heavier object through the self-locking action of self, has strengthened auto-lock worm gear mechanism's auto-lock ability.
As an alternative embodiment, referring to fig. 2, 3 and 4, the reduction gear set is at least one stage of reduction mechanism. The reduction gear set comprises a plurality of groups of reduction gears, so that the transmission structure of the lifting system achieves the actual reduction effect.
As an alternative embodiment, referring to fig. 2, 3 and 4, the reduction gear set comprises a first gear 3, a second gear 4 and a third gear 5, the first gear 3 is coaxially connected with the worm wheel 2 of the self-locking worm and gear mechanism, the first gear 3 is meshed with the second gear 4, the first gear and the second gear form a first-stage reduction, the third gear 5 is coaxially connected with the second gear 4, the third gear 5 is meshed with the fourth gear 6 to form a second-stage reduction, and the fourth gear 6 is connected with the actuator.
Specifically, the device adopts a two-stage speed reducing mechanism.
Specifically, in the device, the third gear 5 and the fourth gear 6 are respectively bevel gears, the first gear 3 and the second gear 4 are meshed with each other and form primary speed reduction, the first gear 3 and the second gear 4 are respectively coaxially connected with the worm gear 2 and the small bevel gear, and the small bevel gear and the large bevel gear form secondary speed reduction.
The first gear 3 and the worm wheel are of an integrally formed structure or are connected through a rotating shaft;
the second gear 4 and the third gear 5 are of an integral structure or are connected through a rotating shaft.
As an alternative embodiment, referring to fig. 2, 3 and 6, the third gear 5 and the fourth gear 6 are both bevel teeth, the fourth gear 6 is arranged above the self-locking worm gear and worm mechanism, and the fourth gear 6 is arranged coaxially with the worm 1 of the self-locking worm gear and worm mechanism. The device transmits force to the actuating mechanism through the reduction gear set along the direction parallel to the output shaft of the motor 8.
Specifically, the worm 1 is connected with an output shaft of the motor 8 in the same direction, the worm 1 transmits force to the large bevel gear through the worm wheel 2, the first gear 3, the second gear 4 and the small bevel gear, an axis around which the large bevel gear rotates can be parallel to an axis of the worm 1, and the large bevel gear rotates and drives the executing mechanism to do telescopic motion, so that the output shaft of the motor 8 and a rotating shaft of the large bevel gear are in the same direction.
Specifically, referring to fig. 6, the axis around which the big bevel gear rotates is collinear with the axis of the worm 1, which makes the big bevel gear connected with the executing structure and the output shaft of the motor 8 on the same straight line, so that the driving structure and the transmission structure of the device can be arranged along a straight line.
The axis around which the big bevel gear rotates and the axis of the worm 1 in the device can also be crossed, so that the executing structure inclines towards a certain angle.
Referring to fig. 2, 3 and 4, the worm 1 of the self-locking worm and gear mechanism is vertically arranged, the worm 1 is connected with the driving device, and the second gear 4 is arranged on one side of the first gear 3 close to the worm axis.
As an alternative embodiment, referring to fig. 2, 3 and 4, the self-locking worm gear mechanism comprises a worm and at least two worm wheels, and the worm wheels 2 are distributed along the circumferential direction of the worm; the first gear 3, the second gear 4 and the third gear 5 form a transmission body mechanism, and each worm gear is respectively connected with the fourth gear 6 through the transmission body mechanism. According to the transmission mode, a transmission main body mechanism is formed by the first gear 3, the second gear 4 and the third gear 5, is connected with the worm gear 2 and the fourth gear 6, and drives the fourth gear 6 to rotate.
The device can adopt one group or a plurality of groups of transmission main body mechanisms to connect the worm wheel 2 and the fourth gear 6.
In particular, referring to fig. 4, the manner in which the worm wheel 2 is connected to a set of transmission body mechanisms is shown.
Specifically, referring to fig. 3, the worm wheel 2 and the worm 1 are connected with two sets of transmission main body mechanisms, and the worm wheel 2 and the fourth gear 6 are connected with each other by adopting the multiple sets of transmission main body mechanisms.
The device does not limit the number of the transmission main body mechanisms, and can increase or reduce the number of the transmission main body mechanisms according to actual requirements.
Referring to fig. 2, the transmission body mechanism is located between the fourth gear 6 and the drive means. The self-locking worm gear mechanism and the reduction gear set are arranged in the gear box.
As an alternative embodiment, referring to fig. 5 and 6, the transmission structure for the lifting system further includes: the outer tube body 7, the driving device, the self-locking worm and gear mechanism and the reduction gear set are positioned in the outer tube body 7. The driving device is directly arranged in the outer tube body, noise generated by the driving device in the space closed is isolated by the outer tube body, and the noise transmitted to the outside by the driving device is small.
A lifting system for an electric lifting platform comprises a transmission structure for the lifting system. Above-mentioned electric lift table or lift system for elevating platform adopt this structure can make worm gear structure's auto-lock ability stronger to bear the weight of bigger object, above-mentioned electric lift table or lift system drive structure and transmission structure can follow a straight line setting simultaneously, just so can directly pack into in the table leg of electric table and make electric lift table outward appearance succinct.
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 any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A transmission structure for a lifting system is characterized by comprising a self-locking worm gear mechanism, a reduction gear set and a fourth gear (6), wherein,
the self-locking worm and gear mechanism is connected with the driving device, the self-locking worm and gear mechanism is in transmission connection with the reduction gear set, the reduction gear set is connected with the executing mechanism through the fourth gear (6), the fourth gear (6) and the worm of the self-locking worm and gear mechanism are coaxially arranged, and the reduction gear set can reduce the torque transmitted to the self-locking worm and gear mechanism by the executing mechanism so as to increase the self-locking capacity of the self-locking worm and gear mechanism.
2. The transmission structure for a hoist system according to claim 1, wherein the reduction gear train is at least one stage reduction mechanism.
3. The transmission structure for the lifting system according to claim 2, wherein the reduction gear set comprises a first gear (3), a second gear (4) and a third gear (5), the first gear (3) is coaxially connected with a worm wheel of the self-locking worm and gear mechanism, the first gear (3) is meshed with the second gear (4) and forms a first-stage reduction, the third gear (5) is coaxially connected with the second gear (4), the third gear (5) is meshed with the fourth gear (6) to form a second-stage reduction, and the fourth gear (6) is connected with the actuator.
4. The transmission structure for the lifting system according to claim 3, wherein the first gear (3) and the worm gear are of an integrally formed structure or are connected through a rotating shaft;
the second gear (4) and the third gear (5) are of an integrally formed structure or are connected through a rotating shaft.
5. The transmission structure for the lifting system according to claim 3, wherein the third gear (5) and the fourth gear (6) are both bevel gears, the fourth gear (6) is arranged above the self-locking worm gear mechanism, and the fourth gear (6) is arranged coaxially with the worm of the self-locking worm gear mechanism.
6. The transmission structure for a lifting system according to claim 3, wherein the worm of the self-locking worm gear mechanism is vertically arranged, the worm is connected with the driving device, and the second gear (4) is arranged on one side of the first gear (3) close to the worm axis.
7. The transmission structure for a lifting system according to any one of claims 3 to 6, wherein the self-locking worm gear mechanism comprises a worm and at least two worm wheels, the worm wheels being distributed in a circumferential direction of the worm; the first gear (3), the second gear (4) and the third gear (5) form a transmission main body mechanism, and each worm gear is connected with the fourth gear (6) through the transmission main body mechanism.
8. Transmission structure according to claim 7, characterized in that said transmission body mechanism is located between said fourth gear (6) and said driving means.
9. The transmission structure for a lifting system according to claim 1, further comprising: the outer tube body (7), the driving device, the self-locking worm and gear mechanism and the reduction gear set are located in the outer tube body (7).
10. A lifting system for a motorized lift table, comprising the transmission structure for a lifting system of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921384720.7U CN211501492U (en) | 2019-08-23 | 2019-08-23 | Transmission structure for lifting system and lifting system for electric lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921384720.7U CN211501492U (en) | 2019-08-23 | 2019-08-23 | Transmission structure for lifting system and lifting system for electric lifting platform |
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| Publication Number | Publication Date |
|---|---|
| CN211501492U true CN211501492U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921384720.7U Active CN211501492U (en) | 2019-08-23 | 2019-08-23 | Transmission structure for lifting system and lifting system for electric lifting platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388418A (en) * | 2019-08-23 | 2019-10-29 | 善思科技(宁波)有限公司 | A kind of jacking system drive mechanism |
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2019
- 2019-08-23 CN CN201921384720.7U patent/CN211501492U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388418A (en) * | 2019-08-23 | 2019-10-29 | 善思科技(宁波)有限公司 | A kind of jacking system drive mechanism |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220402 Address after: 315000 No. 77, Beihai Road, Jiangbei District, Ningbo City, Zhejiang Province Patentee after: NINGBO JIANGYU ELECTRIC APPLIANCE CO.,LTD. Address before: 315000 floor 4, building 1, No. 77, Beihai Road, Jiangbei District, Ningbo City, Zhejiang Province Patentee before: Shansi Technology (Ningbo) Co.,Ltd. |
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| TR01 | Transfer of patent right |