CN212429637U - Rotary driving device with controllable rotation angle - Google Patents
Rotary driving device with controllable rotation angle Download PDFInfo
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- CN212429637U CN212429637U CN202020659278.0U CN202020659278U CN212429637U CN 212429637 U CN212429637 U CN 212429637U CN 202020659278 U CN202020659278 U CN 202020659278U CN 212429637 U CN212429637 U CN 212429637U
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- connecting rod
- limiting block
- rotary driving
- worm wheel
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Abstract
The utility model discloses a rotary driving device with controllable rotation angle, which comprises a rotary driving body and a limiting device, wherein the limiting device is connected to the rotary driving body; the rotary driving body comprises a power element, a worm, a rotary support and a shell, the rotary support comprises a worm wheel, an inner ring and a ball, and the limiting device comprises a connecting rod, a limiting block, a limiting device, a limiting seat and a plurality of mounting seats; the limiting seat is arranged on the inner end surface of the shell, the limiting block is arranged in the rotary driving body, the upper arc surface and the lower arc surface of the limiting seat are respectively contacted with the inner hole of the inner ring and the outer arc surface of the limiting seat, and the left end and the right end of the limiting block are respectively provided with a limiting stopper; the mount pad is the recess on the worm wheel installation face A, and the upper segment setting of connecting rod is in the mount pad and is connected with the worm wheel through the screw, hypomere and stopper fixed connection. This novel rotation driving device can accurate control rotation driving device's rotation angle, realizes rotation driving device under partial operating mode low-angle rotation's user demand.
Description
Technical Field
The utility model belongs to novel rotary drive device's structural design belongs to machinery.
Background
The rotary driving device is a novel rotary mechanism and plays an important role and position in the engineering machinery industry. The main components of a typical form of swing drive are: worm, rotary support, shell, motor, bearing, etc. The product has wide application range, and can be used for heavy-duty flat-plate transport vehicles, container cranes, truck cranes, mining machinery, overhead working vehicles, radar devices, sun-tracking solar power generation systems, engineering machinery, new energy fields and the like.
The general rotation driving requirements of the rotation driving device meet 360-degree one-circle or multi-circle rotation, but for partial use occasions, only partial rotation angle is required to be driven, namely the rotation angle is less than 360 degrees. For example, the slewing drive for a solar power generation system requires only a range of rotation angles of ± 50 ° to 60 °, and does not require rotation angles of 60 ° to 300 °. The unnecessary rotation angle will cause energy waste, so it is urgent to design a rotation driving device with controllable rotation angle.
Disclosure of Invention
The utility model aims to solve the problem that a controllable rotary driving device of corner is provided, it can realize rotary driving device low-angle (be less than 360) rotatory user demand under partial operating mode through stopper, the accurate control rotary driving device's of stopper rotation angle, and it is extravagant to reduce the unnecessary energy. And simultaneously, the utility model discloses swing drive's life prolongs greatly. In addition, the utility model discloses slewing drive device's application range is great.
The utility model relates to a rotary driving device with controllable rotation angle, which comprises a rotary driving body and a limiting device, wherein the limiting device is connected to the rotary driving body; the rotary driving body comprises a power element, a worm, a rotary support and a shell, the rotary support comprises a worm wheel, an inner ring and a ball, and the limiting device comprises a connecting rod, a limiting block, a limiting device, a limiting seat and a plurality of mounting seats; the limiting seat is arranged on the inner end surface of the shell, the limiting block is arranged in the rotary driving body, the upper arc surface and the lower arc surface of the limiting seat are respectively contacted with the inner hole of the inner ring and the outer arc surface of the limiting seat, and the left end and the right end of the limiting block are respectively provided with a limiting stopper; the mount pad is the recess on the worm wheel installation face A, and the upper segment setting of connecting rod is in the mount pad and is connected with the worm wheel through the screw, hypomere and stopper fixed connection.
Furthermore, the limiting seat is composed of a middle circular arc section and a left straight line section and a right straight line section, and two ends of the circular arc section are respectively connected with the left straight line section and the right straight line section.
Furthermore, the arc section in the middle of the limiting seat is concentric with the inner ring.
Further, the number n of the mounting seats is set according to the rotation angle alpha, and n is INT (360 DEG/alpha), namely an integer value of (360 DEG/alpha); alpha is the included angle between the center line of the connecting rod at the left limit position and the center line of the connecting rod at the right limit position.
Further, the right end face of the connecting rod is not higher than the mounting face A of the worm wheel.
Furthermore, the mounting seat is a U-shaped groove, and the circular arc and the two side edges at the upper end of the connecting rod are tightly matched with the U-shaped groove.
Further, the lower section of the connecting rod is pressed on the right end face of the limiting block and is fixedly connected with the limiting block through a fixing screw and a positioning pin.
Furthermore, a U-shaped groove is formed in the limiting block, the lower section of the connecting rod is embedded in the groove, the circular arc and the two side edges of the lower end of the connecting rod are tightly matched with the groove, and the connecting rod is fixed on the limiting block through a fixing screw.
Further, the power element is a hydraulic motor or an electric motor.
The utility model discloses rotation driving device's advantage is: the rotation angle of the rotary driving device is accurately controlled through a limiting block and a limiting device, the use requirement of the rotary driving device for small-angle (less than 360 degrees) rotation under partial working conditions is met, and unnecessary energy waste is reduced; the worm wheel is full-tooth, namely, teeth are arranged in one circle, only a part of gear teeth work under the working condition of small-angle rotation, and all the teeth can participate in the work by adjusting the working area of the gear teeth of the worm wheel, so that the service life of the rotary driving device is greatly prolonged; compared with the hard limiting through a mechanical device, the limiting stopper can enable the rotation angle of the drive to be within a control range, and the rotary drive and even the damage of a host caused by collision are avoided; the limiter is positioned in the rotary driving device, so that more installation space of the host cannot be occupied, and the structure is compact; meanwhile, the inner space is closed, so that the limiting stopper and the components thereof are protected to a certain extent and cannot be damaged by external force; fifthly, if cancel behind stopper, stopper and the connecting rod, this novel rotary drive device is the same with ordinary rotary drive device, can realize 360 rotations to enlarged the utility model discloses rotary drive device's application range.
Drawings
Fig. 1 is a front view of the swing drive apparatus of the present invention;
FIG. 2 is a right side view of FIG. 1;
fig. 3 is a schematic view of the corner of the swing driving device of the present invention.
Detailed Description
Example 1
As shown in fig. 1, 2 and 3, the rotation angle controllable rotation driving device of the present invention includes a rotation driving body and a limiting device, wherein the limiting device is connected to the rotation driving body; the rotary driving body comprises a power element 11, a worm 15, a rotary support and a shell 19, the rotary support comprises a worm wheel 18, an inner ring 17 and balls 16, and the limiting device comprises a connecting rod 22, a limiting block 25, a limiting device 26, a limiting seat 27 and a plurality of mounting seats 28; the limiting seat 27 is arranged on the inner end surface of the shell 19, the limiting block 25 is arranged in the rotary driving body, the upper arc surface and the lower arc surface of the limiting block 25 are respectively contacted with the inner hole of the inner ring 17 and the outer arc surface of the limiting seat 27, and the left end and the right end of the limiting block 25 are respectively provided with a limiting device 26; the mounting seat 28 is a groove on the mounting surface A of the worm wheel 18, the upper section of the connecting rod 22 is arranged in the mounting seat 28 and connected with the worm wheel 18 through a screw 23, and the lower section of the connecting rod is fixedly connected with the limiting block 25.
The utility model discloses a stop device has realized controlling rotary drive device's rotation angle, and its theory of operation is: when the power element 11 works and the worm 15 drives the worm wheel 18 to rotate, the worm wheel 18 drives the limiting block 25 to rotate through the connecting rod 22, when the power element rotates to a certain angle, the limiting block 26 on one side of the limiting block 25 contacts the limiting seat 28, and the limiting block 26 triggers a switch for cutting off the power element 11, so that the rotation of the rotation driving device is stopped. Then, the worm 15 of the power element 11 drives the worm wheel 18 to rotate reversely, the stopper 26 on the other side of the stopper 25 contacts the stopper seat 28, and the stopper 26 triggers the switch for cutting off the power element 11, so that the rotation of the rotation driving device is stopped, and the control of the rotation angle of the rotation driving device is realized.
Example 2
The utility model discloses among the rotary drive device: the limiting seat 27 is composed of a middle circular arc section, a left straight line section and a right straight line section, and two ends of the circular arc section are respectively connected with the left straight line section and the right straight line section.
The arc section in the limiting seat 27 is used for providing a guiding track for the rotation of the limiting block 25, and the left and right straight sections are used for triggering the limiting device 26 to enable the rotary driving device to stop rotating.
Example 3
The utility model discloses among the rotary drive device: the arc section in the middle of the limiting seat 27 is concentric with the inner ring 17.
The arc section in the middle of the limiting seat 27 is concentric with the inner ring 17, so that the distance between the inner hole of the inner ring 17 and the outer arc surface of the limiting seat 27 is kept unchanged, the upper side surface and the lower side surface of the limiting block 25 can be always kept in contact with the inner ring 17 and the limiting seat 27 in the rotating process, and the stable reliability of rotation is realized.
Example 4
The utility model discloses among the rotary drive device: the number n of the mounting seats 28 is set according to the rotation angle α, n being INT (360 °/α), i.e. (360 °/α) an integer number; alpha is the angle between the centre line of the connecting rod 22 in the left extreme position and the centre line of the connecting rod 22 in the right extreme position.
As can be seen from fig. 3, the left limit position refers to a left straight line segment where the left stopper 26 touches the stopper seat 27, the right limit position refers to a right straight line segment where the right stopper 26 touches the stopper seat 27, and α is an included angle between a center line of the connecting rod 22 at the left limit position and a center line of the connecting rod 22 at the right limit position, which is a rotation angle of the swing driving device. The specific value of the rotation angle alpha is determined according to the rotation angle required by the use working condition of the rotary driving device.
The utility model discloses in: the worm wheel 18 will engage with the worm 15 in the working area of the rotation angle α, and after the slewing drive has been in operation for a while, the teeth of the worm wheel 18 in the range α will be worn out and affect the operation. At this time, the connecting rod 22 is loosened to rotate the worm wheel 18, so that the connecting rod 22 is fixedly connected with the other mounting seat 28, and the teeth which are not operated before on the worm wheel 18 participate in the operation until the connecting rod 22 is fixedly connected with all the mounting seats 28, so that all the teeth on the worm wheel 18 participate in the operation, and the service life of the slewing drive device is greatly prolonged.
Example 5
The utility model discloses among the rotary drive device: the right end face of the connecting rod 22 is not higher than the mounting face a of the worm wheel 18.
After the connecting rod 22 is installed, the right end face of the connecting rod is not higher than the installation face A of the worm wheel 18, so that the interference on the installation of the host machine is avoided. Similarly, the fixing screw 23 should be lower than the mounting surface a of the worm wheel 18 to avoid interference to the installation of the host.
Example 6
The utility model discloses among the rotary drive device: the mounting seat 28 is a U-shaped groove, and the arc and two sides of the upper end of the connecting rod 22 are tightly matched with the U-shaped groove.
In order to prevent the connecting rod 22 from rotating to cause the inconsistent rotation angles of the worm wheel 18 and the limiting block 25, the connecting rod 22 is well matched with the U-shaped groove of the mounting seat 28 and has a positioning function, so that the consistency of the rotation angles of the worm wheel 18 and the limiting block 25 is ensured.
Example 7
The utility model discloses among the rotary drive device: the connecting rod 22 and the limiting block 25 are connected in the following two ways: the lower section of the connecting rod 22 is pressed on the right end face of the limiting block 25 and is fixedly connected with the limiting block 25 through a fixing screw 23 and a positioning pin 24; and a U-shaped groove is formed in the limiting block 25, the lower section of the connecting rod 22 is embedded in the groove, the circular arc and the two side edges of the lower end of the connecting rod are tightly matched with the groove, and the connecting rod 22 is fixed on the limiting block 25 through a fixing screw 23.
In order to prevent the connecting rod 22 and the limiting block 25 from rotating, two connection modes are adopted: firstly, the connecting rod is fixed on a limiting block 25 through a fixing screw 23 and a positioning pin 24, and the positioning pin 24 is used for preventing the connecting rod from rotating; secondly, the U-shaped groove on the limiting block 25 and the fixing screw 23 fix the connecting rod on the limiting block 25, and the U-shaped groove is used for preventing the connecting rod from rotating.
After the fixing screw 23 and the positioning pin 24 are installed, the surface of the fixing screw should be lower than the installation surface A of the worm wheel 18, so that the interference on the installation of the host machine is avoided.
Example 8
The utility model discloses among the rotary drive device: the power element 11 is a hydraulic motor or an electric motor.
The worm 15 and the slewing bearing are both arranged in the shell 19, balls 16 are arranged in raceways of the worm 15 and the worm wheel 18, the inner ring 17 is connected with the shell 19 and a host machine through screws, and the right end face of the inner ring 17 is lower than the mounting surface A of the worm wheel 18; the power element 11 is connected with a worm 15, the worm 15 is meshed with a worm wheel 18, and the worm wheel 18 is an outer ring and rotates around an inner ring 17 through a ball 16. Because the connecting rod 22 is not connected with the inner ring 17, when the worm wheel 18 drives the limiting block 25 to rotate through the connecting rod 22, the inner ring 17 is fixed and does not rotate. The stopper 26 may control an oil circuit switch or a motor switch of the hydraulic motor.
The utility model discloses rotation driving device's advantage is: the rotation angle of the rotary driving device is accurately controlled through a limiting block and a limiting device, the use requirement of the rotary driving device for small-angle (less than 360 degrees) rotation under partial working conditions is met, and unnecessary energy waste is reduced; the worm wheel is full-tooth, namely, teeth are arranged in one circle, only a part of gear teeth work under the working condition of small-angle rotation, and all the teeth can participate in the work by adjusting the working area of the gear teeth of the worm wheel, so that the service life of the rotary driving device is greatly prolonged; compared with the hard limiting through a mechanical device, the limiting stopper can enable the rotation angle of the drive to be within a control range, and the rotary drive and even the damage of a host caused by collision are avoided; the limiter is positioned in the rotary driving device, so that more installation space of the host cannot be occupied, and the structure is compact; meanwhile, the inner space is closed, so that the limiting stopper and the components thereof are protected to a certain extent and cannot be damaged by external force; fifthly, if cancel behind stopper, stopper and the connecting rod, this novel rotary drive device is the same with ordinary rotary drive device, can realize 360 rotations to enlarged the utility model discloses rotary drive device's application range.
Claims (9)
1. A rotary driving device with a controllable rotation angle is characterized in that: the device comprises a rotary driving body and a limiting device, wherein the limiting device is connected to the rotary driving body; the rotary driving body comprises a power element (11), a worm (15), a rotary support and a shell (19), the rotary support comprises a worm wheel (18), an inner ring (17) and balls (16), and the limiting device comprises a connecting rod (22), a limiting block (25), a limiting device (26), a limiting seat (27) and a plurality of mounting seats (28); the limiting seat (27) is arranged on the inner end surface of the shell (19), the limiting block (25) is arranged in the rotary driving body, the upper arc surface and the lower arc surface of the limiting block (25) are respectively contacted with the inner hole of the inner ring (17) and the outer arc surface of the limiting seat (27), and the left end and the right end of the limiting block (25) are respectively provided with a limiting stopper (26); the mounting seat (28) is a groove on the mounting surface A of the worm wheel (18), the upper section of the connecting rod (22) is arranged in the mounting seat (28) and is connected with the worm wheel (18) through a screw (23), and the lower section of the connecting rod is fixedly connected with the limiting block (25).
2. The swing drive apparatus according to claim 1, wherein: the limiting seat (27) consists of a middle circular arc section and a left and a right straight line sections, and two ends of the circular arc section are respectively connected with the left and the right straight line sections.
3. The swing drive apparatus according to claim 2, wherein: the arc section in the middle of the limiting seat (27) is concentric with the inner ring (17).
4. The swing drive apparatus according to claim 1, wherein: the number n of the mounting seats (28) is set according to the rotation angle alpha, and n is INT (360 DEG/alpha), namely an integer value of (360 DEG/alpha); alpha is an included angle between the center line of the connecting rod (22) at the left limit position and the center line of the connecting rod (22) at the right limit position.
5. The swing drive apparatus according to claim 1, wherein: the right end face of the connecting rod (22) is not higher than the mounting face A of the worm wheel (18).
6. The swing drive apparatus according to claim 1, wherein: the mounting seat (28) is a U-shaped groove, and the circular arc and two side edges at the upper end of the connecting rod (22) are tightly matched with the U-shaped groove.
7. The swing drive apparatus according to claim 1, wherein: the lower section of the connecting rod (22) is pressed on the right end face of the limiting block (25) and is fixedly connected with the limiting block (25) through a fixing screw (23) and a positioning pin (24).
8. The swing drive apparatus according to claim 1, wherein: a U-shaped groove is formed in the limiting block (25), the lower section of the connecting rod (22) is embedded in the groove, the circular arc and the two side edges of the lower end of the connecting rod are tightly matched with the groove, and the connecting rod (22) is fixed on the limiting block (25) through a fixing screw (23).
9. The swing drive apparatus according to claim 1, wherein: the power element (11) is a hydraulic motor or an electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020659278.0U CN212429637U (en) | 2020-04-27 | 2020-04-27 | Rotary driving device with controllable rotation angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020659278.0U CN212429637U (en) | 2020-04-27 | 2020-04-27 | Rotary driving device with controllable rotation angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212429637U true CN212429637U (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020659278.0U Active CN212429637U (en) | 2020-04-27 | 2020-04-27 | Rotary driving device with controllable rotation angle |
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| Country | Link |
|---|---|
| CN (1) | CN212429637U (en) |
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2020
- 2020-04-27 CN CN202020659278.0U patent/CN212429637U/en active Active
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