Driving device with locking structure

Abstract

The utility model discloses a driving device with a locking structure, which comprises a seat body, a transmission shaft, a driving motor and the locking structure, the driving motor and the locking structure are arranged in a mounting cavity in the seat body, a guide tooth row is arranged in the mounting cavity, the mounting cavity is in transmission meshing with an output gear of the driving motor through the guide tooth row, and the locking structure is connected with an output shaft of the driving motor; the transmission shaft is provided with a transmission end and a connecting end, the transmission end is connected with the clamp, and the connecting end is provided with a rack and is in transmission meshing with the output gear through the rack; the driving motor drives the transmission shaft to slide to a designated position along the direction of the guide tooth row, the transmission control clamp performs clamping or loosening, and an output shaft of the driving motor is locked through a locking head of the locking structure. Therefore, through the driving motor and the transmission shaft, the action of the clamping hand is accurately transmitted and controlled, and the driving motor is braked through the locking structure, so that the braking safety of the driving motor under the condition of heavy load is ensured, the energy consumption is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of drive control equipment technology, and in particular to a drive device with a locking structure. Background Technology

[0002] During the assembly of a wind turbine, large clamping devices are typically used to hold the two sides of the blades and assemble them onto the hub. The clamping and releasing actions of the clamps are controlled by a drive unit.

[0003] As attached Figure 1 As shown, the hydraulic cylinder 1' is currently the most commonly used drive device for driving the gripper b' to clamp the wind turbine blade. However, the control process of the hydraulic cylinder 1' on the gripper b' is not precise enough, so the control accuracy of the gripper b'' is limited and cannot meet the high-precision assembly requirements of the wind turbine blade.

[0004] In addition, some systems use a drive motor to drive the gripper to clamp the fan blades. However, existing drive motors only provide simple drive control for the gripper and rely solely on their built-in automatic brake for braking. The working principle of the automatic brake is based on a combination of electromagnetic effect and mechanical friction, which cannot achieve immediate stopping. Especially when the motor load is large, the braking capacity of its own electrical brake is very limited, the braking timeliness is insufficient, the safety and reliability are difficult to guarantee, the energy consumption is high, and the working efficiency of the entire system is affected. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a drive device with a locking structure.

[0006] The purpose of this utility model is achieved by the following technical solution: a driving device with a locking structure, including a base, a transmission shaft, a driving motor and a locking structure disposed in the mounting cavity of the base, wherein a guide gear is disposed in the mounting cavity and meshes with the output gear of the driving motor through the guide gear, and the locking structure is connected to the output shaft of the driving motor;

[0007] The drive shaft has a drive end and a connecting end. The drive end is connected to a gripper, and the connecting end is provided with a rack and engages with the output gear through the rack. This allows the drive motor to drive the drive shaft and slide together along the guide gear row to a designated position. The transmission controls the gripper to clamp or release, and the locking head of the locking structure locks the output shaft of the drive motor.

[0008] Furthermore, the locking structure has an advancing / retreating mechanism and a locking motor. The advancing / retreating mechanism is connected to the locking motor. The output shaft of the locking motor is provided with a first locking head. The output shaft of the drive motor is provided with a second locking head. The advancing / retreating mechanism drives the locking motor to move in the direction of the drive motor, and the locking motor drives the first locking head to rotate and lock onto the second locking head.

[0009] Furthermore, the forward and backward mechanism is configured as a hydraulic cylinder or a pneumatic cylinder, and the piston rod of the hydraulic cylinder or pneumatic cylinder is fixedly connected to the locking motor to drive the first locking head of the locking motor to move closer to or away from the second locking head.

[0010] Furthermore, the mounting cavity has a first cavity and a second cavity, the first cavity extending axially along the seat body, and the second cavity being disposed on one side of the first cavity and connected to it; the drive motor and locking structure are disposed in the second cavity, and the transmission shaft is disposed in the first cavity.

[0011] Furthermore, there are two second cavities, which are respectively arranged on the upper and lower sides of the first cavity and each is equipped with the drive motor and locking structure; the gear rack is arranged on the cavity wall of the second cavity and extends along the axial direction of the seat, and the output gear of the drive motor meshes with the gear rack of the second cavity accordingly;

[0012] The rack has teeth on its upper and lower sides, which respectively mesh with the output gears of the drive motors in the two second cavities.

[0013] Furthermore, the connecting end of the drive shaft is provided with a positioning groove, which is provided in accordance with the tooth patterns on the upper and lower sides of the rack.

[0014] Furthermore, a coaxial limiting cavity is provided at one end of the first cavity, and the end of the rack is movably disposed in the limiting cavity.

[0015] Furthermore, a fixing ring is provided at one end of the seat, and a cavity opening is provided at the other end that communicates with the first cavity. The limiting cavity is provided at the end of the first cavity near the fixing ring, and the transmission shaft passes through the cavity opening into the first cavity and the limiting cavity.

[0016] Furthermore, the wall of the second cavity is provided with a sliding groove, and the drive motor and locking structure are slidably mounted on the sliding groove via a slide block.

[0017] Furthermore, the forward and backward mechanism has a drive rod and an elastic link. One end of the elastic link is connected to the drive rod, and the other end is connected to the locking motor, so that the drive rod drives the elastic link and controls the first locking head of the locking motor to move closer to or further away from the second locking head through the elastic link.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This application provides a drive device with a locking structure. The drive motor and the transmission shaft are movably mounted in the base. The drive motor meshes with the rack of the transmission shaft and the guide gear in the base through the output gear. This allows the drive motor to synchronously drive the transmission shaft when it moves back and forth along the guide gear, thereby achieving the purpose of controlling the clamping or releasing action of the gripper through the transmission shaft. Compared with the previous implementation method of using a hydraulic cylinder to drive and control the action of the gripper, this application embodiment can control the action of the gripper more accurately through the guiding effect of the guide gear, and the operation is simpler and more convenient.

[0020] In addition, a locking structure is provided in the housing. The locking head of the locking structure locks the output shaft of the drive motor. Compared with the previous method of relying solely on the electric brake of the motor for braking and locking, the technical solution of this application can immediately lock the output shaft of the drive motor through the locking structure to brake the drive motor, ensuring the braking safety of the drive motor under heavy load, while also reducing the energy consumption of the drive motor and improving the overall working efficiency of the drive device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a hydraulic cylinder driving a gripper to clamp a fan blade in existing technology;

[0022] Figure 2 This is an exploded view of the structure of the base, transmission shaft, drive motor and locking structure in the first embodiment of this utility model;

[0023] Figure 3 This is a perspective sectional view of the driving device in the first embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram showing the connection between the driving device and the gripper in the first embodiment of this utility model;

[0025] Figure 5 This is an exploded view of the drive motor, locking structure, locking head and slide in the first embodiment of this utility model;

[0026] Figure 6 This is an exploded view of the drive motor, locking structure, locking head and slide in the second embodiment of this utility model.

[0027] In the picture:

[0028] 01. Drive unit; 10. Base; 101. First cavity; 1011. Limiting cavity; 102. Second cavity; 1021. Guide gear rack; 1022. Slide groove; 103. Fixing ring; 104. Cavity opening; 20. Drive shaft; 201. Drive end; 202. Connecting end; 2021. Positioning slot; 203. Rack; 30. Drive motor; 301. Output gear; 31. Second locking head; 32. Slide; 40. Locking structure; 401. Advance / retract mechanism; 4011. Drive rod; 4012. Elastic connecting rod; 402. Locking motor; 4021. First locking head; b. Grip. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] First Embodiment

[0031] like Figures 2-5 As shown, a drive device with a locking structure is used to drive the clamping or releasing action of the gripper b. Of course, the drive device 01 can also be used to drive other mechanical actions, not limited to the application of controlling the action of the gripper b. The drive device 01 with the locking structure 40 includes a base 10, a transmission shaft 20, a drive motor 30, and a locking structure 40. The base 10 has a mounting cavity, and the drive motor 30 and the locking structure 40 are movably mounted in the mounting cavity. Specifically, the mounting cavity includes a first cavity 101 and a second cavity 102. The first cavity 101 extends axially along the base 10, that is, the space of the first cavity 101 expands in the sliding direction of the drive motor 30 and the locking structure 40.

[0032] like Figure 3 As shown, there are two second cavities 102, which are respectively arranged on the upper and lower sides of the first cavity 101, and are connected to the first cavity 101. The walls of both second cavities 102 are provided with guide tooth rows 1021, which extend along the axial direction of the seat 10 on the cavity wall of the second cavity 102.

[0033] The second cavity 102 has a sliding groove 1022 on one side of the guide tooth row 1021. The sliding groove 1022 is aligned with the guide tooth row 1021. Therefore, the drive motor 30 and the locking structure 40 can be slidably mounted on the second cavity 102 by providing a sliding base 32.

[0034] like Figure 2As shown, to facilitate the installation of the drive device 01, a retaining ring 103 for matching and installing with the fixed shaft is provided at one end of the base 10. The other end of the base 10 is provided with a cavity 104 that communicates with the first cavity 101. Therefore, the drive shaft 20 can be slidably installed in the first cavity 101 through the cavity 104 of the base 10.

[0035] The drive shaft 20 has a drive end 201 and a connecting end 202. The drive end 201 of the drive shaft 20 is used to connect the gripper b. When the drive shaft 20 slides in the first cavity 101 of the seat 10, it will synchronously drive the gripper b. The connecting end 202 of the drive shaft 20 is provided with a rack 203. The rack 203 has corresponding teeth on both sides. The connecting end 202 of the drive shaft 20 is provided with positioning slots 2021 at the corresponding positions of the teeth on both sides of the rack 203.

[0036] like Figure 3 As shown, the first cavity 101 has a coaxial limiting cavity 1011 at one end near the seat 10 where the fixing ring 103 is provided. When the drive shaft 20 is slidably installed in the first cavity 101, the end of its rack 203 is movably positioned in the limiting cavity 1011. The limiting cavity 1011 has the function of limiting and guiding the rack 203 of the drive shaft 20, making the sliding action of the drive shaft 20 in the first cavity 101 more precise and stable.

[0037] When the drive motor 30 and the locking structure 40 are installed in the second cavity 102, the output gear 301 of the drive motor 30 can mesh with the guide gear row 1021 on the cavity wall. Therefore, the output shaft of the installed drive motor 30 is arranged perpendicular to the guide gear row 1021, and the locking structure 40 is connected to the output shaft of the drive motor 30.

[0038] like Figures 2-3 As shown, after the drive motor 30 is started, the output gear 301 of the drive motor 30 meshes with the guide gear row 1021 and rolls along the direction of the guide gear row 1021, and the drive motor 30 drives the locking structure 40 to slide together along the direction of the guide gear row 1021 and the slide groove 1022.

[0039] Since the two second cavities 102 are located on both sides of the first cavity 101, the drive motors 30 installed in the two second cavities 102 are also correspondingly arranged on both sides of the transmission shaft 20. The output gears 301 of the two drive motors 30 are correspondingly engaged with the toothed teeth on both sides of the rack 203 of the transmission shaft 20, and the drive motors 30 drive the transmission shaft 20 to slide together along the direction of the first cavity 101 through the output gears 301. The positioning slots 2021 on the connecting end 202 of the transmission shaft 20 guide and stabilize the transmission engagement between the output gears 301 and the rack 203 of the drive motors 30, improving the stability and accuracy of the transmission engagement between the output gears 301 and the rack 203. Since the transmission end 201 of the transmission shaft 20 is connected to the gripper b, the transmission shaft 20 synchronously drives the gripper b. As the transmission shaft 20 reciprocates within the first cavity 101, it can correspondingly drive the gripper b to perform clamping or loosening actions.

[0040] More specifically, when the drive motor 30 is started, the output gear 301 of the drive motor 30 meshes with the guide gear rack 1021 on both sides and the rack 203 of the transmission shaft 20. Since the guide gear rack 1021 on the base 10 is fixedly set, the output gear 301 can only roll along the direction of the guide gear rack 1021. Through the transmission meshing action of the output gear 301 and the rack 203, the transmission shaft 20 moves together with the output gear 301, thereby causing the drive motor 30, the locking structure 40 and the transmission shaft 20 to slide back and forth along the direction of the guide gear rack 1021.

[0041] In this embodiment, the transmission end 201 of the transmission shaft 20 is connected to the gripper b. Therefore, when the drive motor 30 drives the transmission shaft 20 to slide along the guide tooth row 1021 toward the cavity 104 of the seat 10, it is used to control the gripper b to perform a clamping action. When the drive motor 30 drives the transmission shaft 20 to slide along the guide tooth row 1021 toward the limiting cavity 1011 or the fixing ring 103 of the seat 10, it is used to control the gripper b to perform a releasing action.

[0042] When the drive motor 30 stops, the drive motor 30 is de-energized and the output gear 301 stops rotating. The output gear 301 and the rack 203 slide together to the designated position on the guide gear row 1021. For example, when the output gear 301 of the drive motor 30 rolls to the end of the second cavity 102 near the limiting cavity 1011, it controls the gripper b to remain in a released state. When the output gear 301 of the drive motor 30 rolls to the end of the second cavity 102 near the cavity opening 104, it controls the gripper b to remain in a clamped state. The locking structure 40 then locks the output shaft of the drive motor 30 through the locking head. Then, the locking structure 40 receives the stop signal of the drive motor 30 and locks the output shaft of the drive motor 30 through the locking head.

[0043] like Figure 3 , 5 As shown, the locking principle of the locking structure 40 on the drive motor 30 is further described. The locking structure 40 has an advancing and retreating mechanism 401 and a locking motor 402. Both the advancing and retreating mechanism 401 and the locking motor 402 are slidably mounted on the slide groove 1022 of the second cavity 102 through the slide block 32 and slide together with the drive motor 30.

[0044] The advancing and retreating mechanism 401 uses a hydraulic cylinder or a pneumatic cylinder. The piston rod of the hydraulic cylinder or pneumatic cylinder is fixedly connected to the locking motor 402, thereby driving the locking motor 402 to reciprocate linearly towards the drive motor 30 via the hydraulic cylinder or pneumatic cylinder.

[0045] The output shaft of the locking motor 402 is provided with a first locking head 4021, and the output shaft of the drive motor 30 is provided with a second locking head 31. The first locking head 4021 on the locking motor 402 of the installed locking structure 40 can be arranged relative to the second locking head 31.

[0046] When the forward and backward mechanism 401 controls the locking motor 402 to move closer to or further away from the drive motor 30, it also causes the first locking head 4021 to move closer to or further away from the second locking head 31. When the first locking head 4021 moves closer to the second locking head 31, the locking motor 402 drives the first locking head 4021 to rotate and engage with the second locking head 31 in a rotating latching lock, thereby locking the output shaft of the drive motor 30.

[0047] In this way, the drive motor 30 and the transmission shaft 20 are movably mounted in the base 10, and the drive motor 30 meshes with the rack 203 of the transmission shaft 20 and the guide gear row 1021 in the base 10 through the output gear 301. This allows the drive motor 30 to synchronously drive the transmission shaft 20 when it reciprocates along the guide gear row 1021, thereby achieving the purpose of controlling the clamping or loosening action of the gripper b through the transmission shaft 20. Compared with the previous implementation method of using a hydraulic cylinder to drive and control the action of the gripper b, the embodiment of this application can control the action of the gripper b more precisely through the guiding effect of the guide gear row 1021, and the operation is simpler and more convenient.

[0048] In addition, a locking structure 40 is provided inside the base 10. The locking head of the locking structure 40 locks the output shaft of the drive motor 30. Compared with the previous method of relying solely on the electric brake of the motor for braking and locking, the technical solution of this application can immediately lock the output shaft of the drive motor 30 through the locking structure 40 to brake the drive motor 30, ensuring the braking safety of the drive motor 30 under heavy load, while also reducing the energy consumption of the drive motor 30 and improving the overall working efficiency of the drive device 01.

[0049] Second Embodiment

[0050] like Figure 6 As shown, the difference between this embodiment and the first embodiment lies in the design of the locking structure's advance and retreat mechanism 401. The rest are the same and will not be described in detail here.

[0051] Specifically, the forward / reverse mechanism 401 has a drive rod 4011 and an elastic connecting rod 4012. A telescopic spring is sleeved on the elastic connecting rod 4012, and one end of the elastic connecting rod 4012 is connected to the drive rod 4011 for transmission, while the other end of the elastic connecting rod 4012 is connected to the locking motor 402. The output shaft of the locking motor 402 is provided with a first locking head 4021, and the output shaft of the drive motor 30 is provided with a second locking head 31. In the installed locking structure 40, the first locking head 4021 on the locking motor 402 can be arranged relative to the second locking head 31.

[0052] The drive rod 4011, driven by the driver, transmits power to the elastic link 4012, causing the elastic link 4012 to move the locking motor 402 and the first locking head 4021 closer to or further away from the second locking head 31. When the first locking head 4021 approaches the second locking head 31, the locking motor 402 drives the first locking head 4021 to rotate and engage with the second locking head 31 in a rotating latching lock, thereby locking the output shaft of the drive motor 30. Furthermore, by sleeved with a telescopic spring on the elastic link 4012, the first locking head 4021 can be separated from the second locking head 31 and then reset, preventing the first locking head 4021 from interfering with the operating drive motor 30 and the second locking head 31.

[0053] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A drive device with a locking structure, characterized in that, The device includes a base, a drive shaft, a drive motor and a locking structure, a mounting cavity disposed within the base, a guide gear rack within the mounting cavity, and a drive gear rack that meshes with the output gear of the drive motor. The locking structure is connected to the output shaft of the drive motor. The drive shaft has a drive end and a connecting end. The drive end is connected to a gripper, and the connecting end is provided with a rack and engages with the output gear through the rack. This allows the drive motor to drive the drive shaft and slide together along the guide gear row to a designated position. The transmission controls the gripper to clamp or release, and the locking head of the locking structure locks the output shaft of the drive motor.

2. The drive device with a locking structure as described in claim 1, characterized in that, The locking structure has an advancing / retreating mechanism and a locking motor. The advancing / retreating mechanism is connected to the locking motor. The output shaft of the locking motor is provided with a first locking head. The output shaft of the drive motor is provided with a second locking head. The advancing / retreating mechanism drives the locking motor to move in the direction of the drive motor, and the locking motor drives the first locking head to rotate and lock onto the second locking head.

3. The drive device with a locking structure as described in claim 2, characterized in that, The advancing and retreating mechanism is configured as a hydraulic cylinder or a pneumatic cylinder, and the piston rod of the hydraulic cylinder or pneumatic cylinder is fixedly connected to the locking motor to drive the first locking head of the locking motor to move closer to or away from the second locking head.

4. The drive device with a locking structure as described in any one of claims 1-3, characterized in that, The mounting cavity has a first cavity and a second cavity. The first cavity extends along the axial direction of the base, and the second cavity is located on one side of the first cavity and is connected to it. The drive motor and locking structure are located in the second cavity, and the transmission shaft is located in the first cavity.

5. The drive device with a locking structure as described in claim 4, characterized in that, The second cavity has two parts, which are respectively arranged on the upper and lower sides of the first cavity and each is equipped with the drive motor and the locking structure; the gear rack is arranged on the cavity wall of the second cavity and extends along the axial direction of the seat, and the output gear of the drive motor meshes with the gear rack of the second cavity accordingly; The rack has teeth on its upper and lower sides, which respectively mesh with the output gears of the drive motors in the two second cavities.

6. The drive device with a locking structure as described in claim 5, characterized in that, The connecting end of the drive shaft is provided with a positioning groove, which is set to correspond to the tooth patterns on the upper and lower sides of the rack.

7. The drive device with a locking structure as described in claim 4, characterized in that, One end of the first cavity is provided with a coaxial limiting cavity, and the end of the rack is movably disposed in the limiting cavity.

8. The drive device with a locking structure as described in claim 7, characterized in that, One end of the seat is provided with a fixing ring, and the other end is provided with a cavity that communicates with the first cavity. The limiting cavity is provided at the end of the first cavity near the fixing ring, and the drive shaft passes through the cavity into the first cavity and the limiting cavity.

9. The drive device with a locking structure as described in claim 4, characterized in that, The wall of the second cavity is provided with a sliding groove, and the drive motor and locking structure are slidably mounted on the sliding groove via a slide block.

10. The drive device with a locking structure as described in claim 2, characterized in that, The forward and backward mechanism has a drive rod and an elastic link. One end of the elastic link is connected to the drive rod, and the other end is connected to the locking motor, so that the drive rod drives the elastic link and controls the first locking head of the locking motor to move closer to or further away from the second locking head through the elastic link.

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