Internal control speed regulation type electric bolt

Abstract

The utility model relates to the technical field of electric bolts, and discloses an internal control speed regulation type electric bolt which comprises a base and a controller arranged on the base, lead screws and a pin shaft which are arranged in parallel are installed on the base, the lead screws are arranged on the two sides of the pin shaft respectively, one end of the pin shaft penetrates out of the base in a sliding mode, and a supporting plate is arranged at the other end of the pin shaft. The base is further provided with a motor electrically connected to the controller, an output shaft of the motor rotationally penetrates out of the base along the side deviating from the penetrating-out side of the pin shaft, the end, penetrating out of the base, of the output shaft of the motor is sleeved with a transmission gear, and the ends, on the same side as the output shaft of the motor, of the two lead screws rotationally penetrate out of the base. The ends, penetrating out of the base, of the transmission gears are sleeved with driven gears, and the two driven gears are engaged with the transmission gears correspondingly. The electric bolt has the effect of improving the use stability of the electric bolt.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electric latches, in particular to an internal control speed regulation type electric latch. BACKGROUND

[0002] As a key safety locking device, the electric latch is widely used in automatic unhooking and locking systems of mechanical equipment. With the continuous improvement of industrial automation level, the demand for electric latches is increasing, especially in the scene of wheel loader lifting operation, the safety and reliability of which directly affect the production efficiency and safety. At the same time, modern industrial scenes have higher requirements for the functional diversification of electric latches. Not only the basic locking and unlocking needs are met, but also stronger environmental adaptability and higher operation precision are required.

[0003] In order to realize the effective extension and retraction of the pin shaft, the traditional technology mainly relies on pneumatic or hydraulic drive form, and the fluid pressure directly acts on the pin shaft to achieve the required power transmission through the change of fluid pressure.

[0004] However, in the scene requiring high-precision positioning, the traditional electric latch insertion speed completely depends on the fluid pressure change rate. This characteristic determines that it is difficult to flexibly adjust the speed parameter, so that in the case of handling different weight or resistance load, the lack of flexible speed regulation mechanism causes the performance to be unstable due to the change of load, which increases the risk of damage to the electric latch itself and its matching components, thereby reducing the reliability and service life of the electric latch. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the use stability of the electric latch, the application provides an internal control speed regulation type electric latch.

[0006] The internal control speed regulation type electric latch provided by the application adopts the following technical scheme:

[0007] An internal control speed regulation type electric latch, comprising a base and a controller arranged on the base, a lead screw and a pin shaft arranged in parallel are installed on the base, one lead screw is arranged on each side of the pin shaft, one end of the pin shaft slides out of the base, and a support plate is arranged on the other end, the support plate is rotatably sleeved on the two lead screws through threads, a motor electrically connected to the controller is further arranged on the base, an output shaft of the motor rotates out of the base on the side away from the pin shaft, a transmission gear is sleeved on the end portion of the output shaft rotating out of the base, the end portions of the two lead screws on the same side of the output shaft of the motor rotate out of the base, and a driven gear is sleeved on the end portion of the output shaft rotating out of the base, and the two driven gears are meshingly arranged between the transmission gear.

[0008] Through the above technical scheme, under the precise control of the controller, the motor drives the transmission gear to rotate, and the driven gear meshing with the transmission gear drives the lead screw to rotate synchronously, so that the supporting plate moves along the lead screw, and then pushes or pulls the pin shaft to complete the extension and retraction operation process. This design based on gear set and double lead screw can effectively ensure the stability of movement and the accuracy of position, avoid the instability problem caused by pressure fluctuation in the traditional fluid driving mode, and improve the operation stability and reliability of the whole system. At the same time, the introduction of the controller can adjust the motor speed according to the actual demand, so as to flexibly adjust the moving speed of the pin shaft, meet the use requirements under different working conditions, and greatly improve the use stability of the electric bolt.

[0009] Optionally, a nut is arranged between the supporting plate and the lead screw, a through hole is formed in the supporting plate for the lead screw to pass through, the nut penetrates through the through hole and is installed on the supporting plate, and the nut is sleeved on the lead screw through thread rotation.

[0010] Through the above technical scheme, the design of the nut penetrating through the through hole simplifies the assembly process, so that the supporting plate can be more conveniently installed on the lead screw, improves the assembly efficiency, and the arrangement of the nut can effectively enhance the connection stability between the supporting plate and the lead screw, reduce the possibility of radial shaking and wear of the supporting plate during rotation with the lead screw, thereby improving the stability of the whole device operation, and further improving the operation precision and reliability of the electric bolt.

[0011] Optionally, a limit switch electrically connected to the controller is arranged on the base, the limit switch is located on the side of the lead screw away from the pin shaft, and one is arranged at each end along the length direction of the lead screw, a baffle is connected to the nut near the limit switch, the baffle is sleeved on the lead screw, and the side near the limit switch extends between the two limit switches, when the pin shaft reaches the preset maximum or minimum position, the baffle triggers the limit switch at the corresponding position, and the controller cuts off the motor current.

[0012] Through the above technical scheme, when the pin shaft reaches the preset maximum or minimum position, the baffle will touch the corresponding limit switch, and then the controller will cut off the motor current, effectively preventing the pin shaft from exceeding the safe travel range, avoiding mechanical structure damage caused by excessive extension and retraction, and improving the safety and reliability of the equipment operation. At the same time, this design can also reduce the overload risk of the motor and prolong the service life of the whole electric bolt system.

[0013] Optionally, an extension button and a retraction button electrically connected to the controller are installed on the side wall of the base, and are respectively used for controlling the outward extension and inward retraction of the pin shaft.

[0014] By adopting the above technical scheme, the added extension button and retraction button enable the user to intuitively and simply control the extension and retraction action of the pin shaft, and the locking and releasing process of the bolt can be completed without complex operation procedures, thereby significantly improving the human-computer interaction experience of the equipment. Meanwhile, the design simplifies the input mode of the control system instruction, helps to reduce the possibility of misoperation, and further improves the working reliability of the electric bolt.

[0015] Optionally, a hand rotating rod is arranged on the end of the lead screw extending out of the base, which facilitates manual driving of the lead screw to rotate in the case of power failure.

[0016] By adopting the above technical scheme, in the case of power failure, the lead screw can be driven to rotate by manually rotating the hand rotating rod. This design ensures that manual extension and retraction operation of the pin shaft can still be realized in the case of power supply abnormality or emergency, thereby improving the reliability and applicability of the electric bolt.

[0017] Optionally, a heat dissipation assembly is arranged on the controller, which includes a heat dissipation fin and a heat dissipation fan, the heat dissipation fin is mounted on the side wall of the controller, and the heat dissipation fan is mounted in the heat dissipation fin.

[0018] By adopting the above technical scheme, the heat dissipation assembly arranged on the controller can effectively reduce the temperature accumulation problem of the controller during operation, and reduce the risk of overloading of the controller. Specifically, the heat dissipation fin increases the surface area in contact with air, promoting heat dissipation, and the heat dissipation fan further accelerates air flow, improving heat dissipation efficiency. This not only prolongs the service life of the controller, but also ensures its stable operation in high temperature environment, thereby improving the reliability of the entire electric bolt system.

[0019] Optionally, a chamfer is arranged around the end of the pin shaft extending out of the base.

[0020] By adopting the above technical scheme, the chamfer arranged around the end of the pin shaft can effectively reduce the knocking phenomenon between the pin shaft and the edge of the target hole during insertion or extraction, improve the smoothness of the insertion and extraction process, and reduce wear caused by impact force, thereby prolonging the service life of the pin shaft.

[0021] Optionally, a cover is arranged on the base, and rubber waterproof rings are arranged on the opening parts of the cover.

[0022] By adopting the above technical scheme, the cover can effectively protect the components in the base, prevent external dust, impurities or liquid from entering the inside of the base, and improve the environmental adaptability of the entire electric bolt. Meanwhile, the rubber waterproof rings further enhance the sealing performance of the opening parts, prevent water from seeping in from the gaps, improve the overall waterproof performance of the equipment, and prolong the service life of the electric bolt.

[0023] To sum up, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Under the precise control of the controller, the motor drives the transmission gear to rotate, and through the meshing of the driven gear, it drives the lead screw to rotate synchronously, thereby moving the support plate along the lead screw, and then pushing or pulling the pin shaft to complete the extension and retraction operation process. This design based on gear set and double lead screw can effectively ensure the stability of movement and the accuracy of position, avoid the instability problem caused by pressure fluctuation in traditional fluid-driven mode, and improve the operation stability and reliability of the whole system. At the same time, the introduction of the controller makes it possible to adjust the motor speed according to actual needs, thereby flexibly adjusting the moving speed of the pin shaft to meet the use requirements under different working conditions. The internal control speed regulation type electric bolt greatly improves the use stability of the electric bolt;

[0025] 2. The design of the threaded nut through hole simplifies the assembly process, making it easier to install the support plate on the lead screw, improving the assembly efficiency, and the threaded nut can effectively enhance the connection stability between the support plate and the lead screw, reducing the possibility of radial shaking and wear of the support plate during rotation with the lead screw, thereby improving the stability of the whole device operation, further improving the operation precision and reliability of the electric bolt;

[0026] 3. When the pin shaft reaches the preset maximum or minimum position, the striker will touch the corresponding limit switch, and then the controller will cut off the motor current, effectively preventing the pin shaft from exceeding the safe travel range, avoiding mechanical structure damage caused by excessive extension and retraction, and improving the safety and reliability of the equipment operation. At the same time, this design can also reduce the overload risk of the motor and prolong the service life of the whole electric bolt system. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall structure schematic diagram of the embodiment of the present application.

[0028] Figure 2 is the schematic diagram of the position relationship between the controller, lead screw, pin shaft and motor in the embodiment of the present application.

[0029] Figure 3 is the schematic diagram of the connection relationship between the heat sink, heat dissipation fan and controller in the embodiment of the present application.

[0030] Figure 4 is the exploded view of the position relationship between the cover, transmission gear, driven gear and base in the embodiment of the present application.

[0031] BRIEF DESCRIPTION OF DRAWINGS:

[0032] 1, base; 11, extend button; 12, retract button; 2, cover; 21, rubber waterproof ring; 3, controller; 4, screw rod; 41, hand rotating rod; 5, pin shaft; 51, chamfer; 52, support plate; 521, through hole; 522, nut; 523, striker; 6, motor; 7, heat dissipation assembly; 71, heat dissipation fin; 72, heat dissipation fan; 8, transmission assembly; 81, transmission gear; 82, driven gear; 9, limit switch. DETAILED DESCRIPTION

[0033] The following will be described in detail with reference to the accompanying drawings Figures 1-4 The application is further described in detail.

[0034] The application discloses an internal control speed regulating type electric bolt.

[0035] Referring to Figure 1 , Figure 2 and Figure 3 , an internal control speed regulating type electric bolt comprises a base 1, a cover 2 is arranged on the base 1, and the cover 2 is connected to the base 1 by bolts. The base 1 in the cover 2 is provided with a controller 3, a screw rod 4, a pin shaft 5 and a motor 6, the controller 3 is installed on one side of the base 1, and the controller 3 is provided with a heat dissipation assembly 7. The screw rod 4, the pin shaft 5 and the motor 6 are arranged in parallel, one screw rod 4 is arranged on each side of the pin shaft 5, and the two screw rods 4 are rotatably connected to the base 1 by bearings. One end of the pin shaft 5 slides out of the base 1 along the length direction of the base 1, and a chamfer 51 is formed on the end portion of the pin shaft 5 out of the base 1. The other end of the pin shaft 5 is fixedly provided with a support plate 52, and the support plate 52 is rotatably sleeved on the two screw rods 4 by threads. The output shaft of the motor 6 is located on the side of the motor 6 away from the pin shaft 5 and extending out of the base 1, the end portions of the two screw rods 4 and the output shaft of the motor 6 are rotatably arranged out of the base 1, and a transmission assembly 8 is arranged between the end portions of the three.

[0036] Referring to Figure 2 , the controller 3 is provided with five input and output ports, the functions of the input and output ports can be freely set according to the needs of the users, the motor 6 is connected to the ports of the controller 3 by wires, so as to be controlled by the controller 3. The motor 6 in the application adopts a brushless direct current servo motor, the motor 6 has the excellent performance of fast response speed, low energy consumption and controllability, and can finely control the rotating speed of the output shaft according to the control of the controller 3. The motor 6 is installed on the base 1 by bolts.

[0037] Referring to Figure 2Under the accurate control of the controller 3, the output shaft of the motor 6 rotates at a preset speed, and then the rotating output shaft of the motor 6 drives the lead screws 4 to rotate synchronously through the transmission assembly 8. Under the guiding and limiting of the two lead screws 4, the support plate 52 converts the rotary motion of the lead screws 4 into axial motion, so as to move along the lead screws 4, and then push or pull the pin shaft 5 to complete the extension and retraction operation process.

[0038] With reference to Figure 3 The heat dissipation assembly 7 comprises heat dissipation fins 71 and a heat dissipation fan 72. The heat dissipation fins 71 are installed on the side wall of the controller 3 on the side facing the center of the base 1. The heat dissipation fan 72 is installed in the heat dissipation fins 71 and embedded in the inner center of the heat dissipation fins 71, so as to timely discharge the heat of the controller 3, reduce the risk of overloading of the controller 3, and drive the air circulation in the cover 2, so that the motor 6 is also cooled, thereby also reducing the risk of overloading of the motor 6.

[0039] With reference to Figure 2 A nut 522 is arranged between the support plate 52 and the lead screw 4. The support plate 52 is provided with a through hole 521 for the lead screw 4 to pass through. The nut 522 penetrates the through hole 521 and is installed on the support plate 52 by bolts. The nut 522 is sleeved on the lead screw 4 by screwing.

[0040] With reference to Figure 2 A limit switch 9 is installed on the side of the base 1 away from the controller 3. The limit switch 9 is electrically connected to the controller 3. One limit switch 9 is installed on each end of the lead screw 4 along the length direction by bolts. A striker 523 is fixedly arranged on the nut 522 near the limit switch 9. The striker 523 is sleeved on the lead screw 4 and extends to between the two limit switches 9 on the side close to the limit switch 9. The distance between the two limit switches 9 matches the stroke of the pin shaft 5. When the pin shaft 5 reaches the preset maximum or minimum position, the striker 523 triggers the limit switch 9 at the corresponding position, and the controller 3 cuts off the current of the motor 6.

[0041] With reference to Figure 4 In order to conveniently control the extension and retraction of the pin shaft 5, an extension button 11 and a retraction button 12 electrically connected to the controller 3 are installed on the side wall of the base 1. The extension button 11 and the retraction button 12 are respectively used to control the outward extension and inward retraction of the pin shaft 5. The key parts of the extension button 11 and the retraction button 12 extend out of the cover 2.

[0042] With reference to Figure 4The transmission assembly 8 is located in the cover 2 and comprises a transmission gear 81 and driven gears 82. The transmission gear 81 is fixedly sleeved on the output shaft end portion of the motor 6 rotating out of the base 1. The two lead screws 4 are both provided with an end portion rotating out of the base 1 on the same side of the output shaft of the motor 6. Each of the lead screws 4 is provided with a driven gear 82, which is fixedly sleeved on the end portion of the lead screw 4 rotating out of the base 1. The two driven gears 82 are respectively located on the two sides of the transmission gear 81 in the axial direction and are both in meshing arrangement with the transmission gear 81.

[0043] With reference to Figure 4 In order to improve the reliability of the electric latch, the end portion of the lead screw 4 sleeved with the driven gear 82 extends out of the cover 2, and the end portion extending out of the cover 2 is fixedly provided with a hand rotating rod 41, so as to facilitate the rotation of the lead screw 4 by hand in the case of power failure.

[0044] With reference to Figure 4 In order to improve the pressure resistance of the electric latch, the opening portions on the cover 2 are all fixedly sleeved with rubber waterproof rings 21.

[0045] The implementation principle of the internal control speed regulation type electric latch is that, under the accurate control of the controller 3, the output shaft of the motor 6 rotates at a preset speed, and then the motor 6 drives the transmission gear 81 to rotate, and the lead screw 4 is driven to rotate synchronously through the driven gear 82 in meshing arrangement therewith. Under the guidance and limitation of the two lead screws 4, the support plate 52 converts the rotary motion of the lead screw 4 into axial motion, so as to move along the lead screw 4, and then push or pull the pin shaft 5 to complete the extension and retraction operation process.

[0046] The design based on the gear set and the double lead screws 4 can effectively ensure the motion stability and the position accuracy, avoid the instability problem caused by pressure fluctuation in the traditional fluid driving mode, and improve the operation stability and reliability of the whole system. At the same time, the introduction of the controller 3 makes it possible to adjust the rotating speed of the motor 6 according to actual needs, so as to flexibly adjust the moving speed of the pin shaft 5, and meet the use requirements under different working conditions.

[0047] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An internally controlled speed-regulated electric bolt, characterized in that The utility model provides a kind of control device for pin shaft, including base (1) and be set on the controller (3) of base (1), the base (1) is mounted with parallelly arranged screw rod (4) and pin shaft (5), the screw rod (4) is located pin shaft (5) both sides and is provided with one, one end of pin shaft (5) slides and passes out base (1), the other end is provided with support plate (52), support plate (52) is rotatably set on two screw rods (4) by thread, motor (6) is further provided on the base (1), and the output shaft of motor (6) is rotatably passed out base (1) along the side away from pin shaft (5), and transmission gear (81) is sleeved on the end portion passed out base (1), and the end portion passed out base (1) is rotatably set with driven gear (82) on both sides of the output shaft of motor (6) and screw rod (4), and driven gear (82) is rotatably set with transmission gear (81) between two.

2. The electric bolt according to claim 1, wherein Support plate (52) and screw rod (4) are provided with nut (522) between, the through hole (521) for screw rod (4) is opened in support plate (52), nut (522) penetrates through through hole (521) and is installed on support plate (52), and nut (522) is rotatably set on screw rod (4) by thread.

3. The electrically operated bolt as claimed in claim 2, wherein Limit switch (9) is electrically connected with controller (3) and is provided on the base (1), limit switch (9) is located on the side of screw rod (4) away from pin shaft (5), and one is provided along the length direction both ends of screw rod (4), and nut (522) close to limit switch (9) side is connected with baffle (523), baffle (523) is rotatably set on screw rod (4), and close to limit switch (9) side extends between two limit switches (9), when pin shaft (5) reaches preset maximum or minimum position, limit switch (9) of corresponding position is triggered by baffle (523), and the current of motor (6) is cut off by controller (3).

4. The electrically operated latch of claim 1 wherein The side wall of base (1) is mounted with extension button (11) and retraction button (12) electrically connected with controller (3), respectively for controlling pin shaft (5) to extend outward and retract inward.

5. The electrically operated latch of claim 1, wherein, Hand rotating rod (41) is provided on the end portion of screw rod (4) extending out of base (1), which facilitates manual driving of screw rod (4) in the case of power failure.

6. The electrically operated latch of claim 1, wherein The controller (3) is provided with a heat dissipation assembly (7), which includes a heat sink (71) and a heat dissipation fan (72), the heat sink (71) is installed on the side wall of the controller (3), and the heat dissipation fan (72) is installed in the heat sink (71).

7. The electrically operated latch of claim 1 wherein A chamfer (51) is annularly provided on the end portion of the pin shaft (5) passing out of the base (1).

8. The electrically powered latch of claim 1, wherein A cover (2) is provided on the base (1), and rubber waterproof rings (21) are provided on the opening parts of the cover (2).

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