An emergency self-rescue device for a power mechanism and a power mechanism

Abstract

The application discloses an emergency self-rescue device for a power mechanism and the power mechanism. The emergency self-rescue device comprises a clutch mechanism and a driving mechanism. The clutch mechanism is installed on a connecting shaft of the power mechanism. The clutch mechanism has a first working state and a second working state. In the first working state, the clutch mechanism is separated from the connecting shaft, and the connecting shaft independently moves. In the second working state, the clutch mechanism drives the connecting shaft to move synchronously. The driving mechanism is installed on the clutch mechanism to drive the connecting shaft of the power mechanism to work. The application can realize quick replacement of power and is suitable for emergency self-rescue of various power mechanisms.

Description

Technical Field

[0001] This invention relates to a power mechanism, and more particularly to an emergency self-rescue device and power mechanism for a power mechanism. Background Technology

[0002] When a motor suddenly fails, the load it drives stops working, and replacing or repairing the motor in a short time is impossible, leading to work interruption and low efficiency. Therefore, there is an urgent need for a self-rescue device to quickly switch the load equipment to a temporary working state when the motor fails. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, the present invention provides an emergency self-rescue device for power mechanisms, capable of rapid power replacement, and applicable to emergency self-rescue in various types of power mechanisms.

[0004] An emergency self-rescue device for a power mechanism according to an embodiment of the present invention includes:

[0005] A clutch mechanism is mounted on the connecting shaft of a power mechanism. The clutch mechanism has a first working state and a second working state. In the first working state, the clutch mechanism is separated from the connecting shaft, and the connecting shaft operates independently. In the second working state, the clutch mechanism drives the connecting shaft to operate synchronously.

[0006] A drive mechanism is mounted on the clutch mechanism to drive the connecting shaft of the power mechanism.

[0007] According to an embodiment of the present invention, an emergency self-rescue device for a power mechanism includes a clutch mechanism with two operating states. In the first operating state, it does not interfere with the connecting shaft of the power mechanism, ensuring the load operates normally under the drive of the power mechanism. When the power mechanism suddenly fails, the clutch mechanism can switch to the second operating state, acting on the connecting shaft to drive it synchronously. Simultaneously, with the cooperation of the drive mechanism, the power generated by the drive mechanism can be transmitted to the connecting shaft via the clutch mechanism, quickly switching the load equipment to a temporary operating state and ensuring the normal operation of the load. Ultimately, through the cooperation of the clutch mechanism and the drive mechanism, rapid power replacement is achieved, making it suitable for emergency self-rescue of various power mechanisms.

[0008] In some embodiments of the present invention, the clutch mechanism includes:

[0009] A bevel gear, which is mounted on the connecting shaft and coaxially arranged with the connecting shaft;

[0010] A main bevel gear is disposed above the connecting shaft and is arranged perpendicularly to the driven bevel gear. The main bevel gear has a third working state and a fourth working state. In the third working state, there is a distance between the main bevel gear and the driven bevel gear. In the fourth working state, the main bevel gear and the driven bevel gear are engaged.

[0011] A connecting rod, the bottom end of which is coaxially connected to the main bevel gear, and the top end of which is connected to the drive mechanism;

[0012] A transmission mechanism is connected to the connecting rod, and the transmission mechanism is used to drive the connecting rod to move up and down so that the main bevel gear switches back and forth between the third working state and the fourth working state.

[0013] In some embodiments of the present invention, the transmission mechanism includes:

[0014] A guide sleeve is fixedly installed above the connecting shaft and arranged perpendicularly to the connecting shaft.

[0015] A sliding support is installed in the guide sleeve, which can move up and down. The top of the outer wall of the sliding support is provided with a rack arranged along the axial direction of the sliding support.

[0016] The first gear is mounted on one side of the guide sleeve and meshes with the rack;

[0017] A first worm gear mechanism is coaxially connected to the first gear to drive the first gear to rotate;

[0018] The connecting rod is rotatably mounted in the sliding support, and the bottom end of the connecting rod passes through the sliding support and connects to the main bevel gear.

[0019] In some embodiments of the present invention, a sliding key for guidance is provided on the outer wall of the sliding support.

[0020] In some embodiments of the present invention, a rotary bearing for radial support and a planar thrust bearing for axial support are provided between the sliding support and the connecting rod, and the rotary bearing and the planar thrust bearing together constrain the connecting rod on the sliding support.

[0021] In some embodiments of the present invention, the drive mechanism is a second worm gear mechanism fixedly installed above the clutch mechanism. The second worm gear includes a second worm and a second turbine connected to each other. The second turbine is connected to the connecting rod so that the connecting rod can rotate synchronously with the second turbine, and the connecting rod can move up and down relative to the second turbine.

[0022] In some embodiments of the present invention, the upper end of the connecting rod is provided with a spline, and the second turbine in the second worm gear is provided with a groove in the middle that mates with the spline.

[0023] In some embodiments of the present invention, a housing is further included, wherein a first receiving cavity is defined within the housing and can be mounted around the connecting shaft, a second receiving cavity communicating with the first receiving cavity is provided on the side wall of the housing, the clutch mechanism is installed in the first receiving cavity and the second receiving cavity, and a mounting seat for mounting the drive mechanism is provided on the outside of the housing opposite to the second receiving cavity.

[0024] According to an embodiment of the present invention, a power mechanism includes a motor, a speed reducer, and the aforementioned emergency self-rescue device, wherein the connecting shaft is the input shaft of the speed reducer.

[0025] According to an embodiment of the present invention, a power mechanism can achieve emergency self-rescue when the motor fails, reduce the occurrence of accidents, and improve the service life of the connected mechanical equipment.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] Figure 1 This is a schematic diagram showing the usage status of the emergency self-rescue device of the present invention;

[0028] Figure 2 yes Figure 1 A cross-sectional view along the vertical direction and through the entire axial direction of the device;

[0029] Figure 3 yes Figure 1 A schematic diagram with the outer shell removed;

[0030] Figure 4 yes Figure 3 A cross-sectional view along the vertical direction and through the entire axial direction of the device;

[0031] Figure 5 yes Figure 4 A cross-sectional view along the AA direction;

[0032] Figure 6 yes Figure 2 A schematic diagram of the clutch disengagement state;

[0033] Figure 7 yes Figure 2 A schematic diagram of the clutch engagement state;

[0034] Figure 8This is a schematic diagram of the emergency self-rescue device of the present invention;

[0035] Figure 9 This is a structural schematic diagram of the emergency self-rescue device of the present invention from another perspective;

[0036] Figure 10 This is a schematic diagram of the clutch mechanism of the present invention;

[0037] Figure 11 This is a schematic diagram of the driving mechanism of the present invention;

[0038] Figure 12 yes Figure 11 A sectional view along the vertical direction and through the radial direction of the bevel gear;

[0039] Figure 13 This is a schematic diagram of the connection between the connecting rod and the transmission mechanism in the clutch mechanism of the present invention;

[0040] Figure 14 yes Figure 13 A sectional view along the vertical direction and through the axial direction of the connecting rod.

[0041] In the picture:

[0042] 100 emergency self-rescue devices;

[0043] Clutch mechanism 10;

[0044] Bevel gear set 11; main bevel gear 111; driven bevel gear 112;

[0045] Link 12; Spline 121;

[0046] Transmission mechanism 13; guide sleeve 131; sliding support 132; sliding key 1321; first gear 133; first worm gear mechanism 134; first worm 1341; first worm 1342; bearing assembly 135; rotary bearing 1351; planar thrust bearing 1352; rack 136;

[0047] Drive mechanism 20; second worm gear 21; second turbine 22;

[0048] Housing 30; First receiving cavity 31; Second receiving cavity 32;

[0049] Mounting base 40;

[0050] Connector 50;

[0051] Motor 200;

[0052] Gearbox 300;

[0053] Connecting shaft 400. Detailed Implementation

[0054] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0055] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0056] The following is for reference. Figures 1-14 An emergency self-rescue device 100 for a power mechanism according to an embodiment of the present invention is described, comprising: a clutch mechanism 10 and a drive mechanism 20.

[0057] Reference Figures 1 to 14 As shown, the clutch mechanism 10 is mounted on the connecting shaft 400 of the power mechanism. The clutch mechanism 10 has a first working state and a second working state. In the first working state, the clutch mechanism 10 is separated from the connecting shaft 400, and the connecting shaft 400 operates independently. In the second working state, the clutch mechanism 10 can drive the connecting shaft 400 to operate synchronously. The drive mechanism 20 is mounted on the clutch mechanism 10 and is used to provide power to drive the clutch mechanism 10 and the connecting shaft 400 to work. Specifically, when the clutch mechanism 10 is in the second working state, under the action of the drive mechanism 20 and the clutch mechanism 10, the connecting shaft 400 can continue to provide power to the load so that when the power source fails, the load equipment can be quickly switched to a temporary working state as soon as possible to ensure the stability of the load operation.

[0058] Understandably, when the power mechanism is working normally, it provides power to the load, and the entire clutch mechanism 10 is in its first working state. At this time, neither the clutch mechanism 10 nor the drive mechanism 20 exerts force on the connecting shaft 400 in the power mechanism, allowing the connecting shaft 400 to drive the load independently under the action of the power mechanism. If a fault occurs, such as a failure of the power source in the power mechanism, the clutch mechanism 10 can be switched from the first working state to the second working state. The clutch mechanism 10 connects to the connecting shaft 400, allowing the connecting shaft 400 to move synchronously with the clutch mechanism 10. Then, the drive mechanism 20 is controlled to continue operating. Under the action of the clutch mechanism 10, the power generated by the drive mechanism 20 can continue to be transmitted to the connecting shaft 400, ensuring that the connecting shaft 400 can continue to provide power to the load. This allows for a rapid switch of the load equipment to a temporary working state in case of power source failure, ensuring the normal operation of the load. Afterward, the working state of the load can be controlled by the drive mechanism 20.

[0059] Accordingly, when the load needs to be stopped or the power mechanism needs to be replaced, the drive mechanism 20 can be controlled to stop working, and the clutch mechanism 10, connecting shaft 400, and load will also stop working. Then, the clutch mechanism 10 is controlled to switch from the second working state to the first working state. At this time, the clutch mechanism 10 is separated from the connecting shaft 400, which does not affect subsequent related maintenance and replacement operations.

[0060] According to an embodiment of the present invention, an emergency self-rescue device for a power mechanism includes a clutch mechanism with two operating states. In the first operating state, it does not interfere with the connecting shaft of the power mechanism, ensuring the load operates normally under the drive of the power mechanism. When the power mechanism suddenly fails, the clutch mechanism can switch to the second operating state, acting on the connecting shaft to drive it synchronously. Simultaneously, with the cooperation of the drive mechanism, the power generated by the drive mechanism can be transmitted to the connecting shaft via the clutch mechanism, quickly switching the load equipment to a temporary operating state and ensuring the normal operation of the load. Ultimately, through the cooperation of the clutch mechanism and the drive mechanism, rapid power replacement is achieved, making it suitable for emergency self-rescue of various power mechanisms.

[0061] In some embodiments of the present invention, reference is made to... Figures 1 to 14As shown, the clutch mechanism 10 may include a bevel gear set 11, a connecting rod 12, and a transmission mechanism 13. The bevel gear set 11 includes a main bevel gear 111 and a driven bevel gear 112. The driven bevel gear 112 is mounted on the connecting shaft 400 and is coaxially arranged with the connecting shaft 400, and can rotate synchronously with the connecting shaft 400. The main bevel gear 111 is located above the connecting shaft 400, and the main bevel gear 111 and the driven bevel gear 112 are arranged perpendicularly. The main bevel gear 111 has a third working state and a fourth working state. In the third working state, there is a distance between the main bevel gear 111 and the driven bevel gear 112, that is, the main bevel gear 111 and the driven bevel gear 112 are in a non-meshing state, and the main bevel gear 11 disengages upward from the driven bevel gear 112. In the fourth working state, the main bevel gear 111 and the driven bevel gear 112 are engaged. The bottom end of connecting rod 12 is coaxially connected to the main bevel gear 111, and the top end of connecting rod 12 is connected to the drive mechanism 20. Under the drive of the drive mechanism 20, connecting rod 12 and the main bevel gear 111 at its bottom will rotate synchronously, thereby driving the bevel gear 112 and the connecting shaft 400 to rotate, so as to continue to provide power to the load. Transmission mechanism 13 is connected to connecting rod 12 to drive connecting rod 12 to move up and down, so that the main bevel gear 111 switches back and forth between the third working state and the fourth working state.

[0062] Understandably, when the power mechanism is working normally, the entire clutch mechanism 10 is in the first working state, and the main bevel gear 111 is in the third working state, that is, the main bevel gear 111 and the driven bevel gear 112 are not meshed, and the power mechanism normally provides power to the load through the connecting shaft 400. When a sudden failure of the power mechanism is detected, the transmission mechanism 13 can be controlled to switch the main bevel gear 111 from the third working state to the fourth working state. Specifically, the transmission mechanism 13 is started, driving the connecting rod 12 and the main bevel gear 111 at its bottom end to move downward (i.e., towards the connecting shaft 400 / driven bevel gear 112) until the main bevel gear 111 and the driven bevel gear 112 mesh; then, the drive mechanism 20 at the top of the connecting rod 12 is started. Under the action of the connecting rod 12 and the bevel gear set 11, the drive mechanism 20 can continue to provide power to the connecting shaft 400 to quickly switch the load equipment to a temporary working state and ensure the normal operation of the connected load.

[0063] Conversely, the transmission mechanism 13 can be controlled to switch the main bevel gear 111 from the fourth working state to the third working state. Specifically, the transmission mechanism 13 is activated to drive the connecting rod 12 and its bottom end, the main bevel gear 111, upward (i.e., away from the connecting shaft 400 / driven bevel gear 112) until the main bevel gear 111 and driven bevel gear 112 are separated and a certain distance apart. The distance between the main bevel gear 111 and driven bevel gear 112 satisfies the requirement that they switch from a meshing state to a non-meshing state, and the position of the main bevel gear 111 does not affect the rotation of the driven bevel gear 112.

[0064] It should be noted that, referring to Figure 6 and Figure 7 As shown, the transmission mechanism 13 can drive the connecting rod 12 and the main bevel gear 111 to move downwards or upwards (i.e., towards or away from the connecting shaft 400) in a direction perpendicular to the connecting shaft 400, so that the main bevel gear 111 and the secondary bevel gear 112 can switch back and forth between the two states of engagement and disengagement. At the same time, the top end of the connecting rod 12 can pass through the drive mechanism 20 and extend above the drive mechanism 20. When the drive mechanism 20 is not working (i.e., the drive mechanism 20 is not moving), the connecting rod 12 and the main bevel gear 111 at its bottom end can also move upwards or downwards relative to the drive mechanism 20 under the drive of the transmission mechanism 13.

[0065] Considering that the bevel gear 112 is mounted on the connecting shaft 400 and can rotate synchronously with the connecting shaft 400 under the drive of the power mechanism, when the power mechanism suddenly fails, the state of the bevel gear 112 may not be the same as the state when the main bevel gear 111 last disengaged from it. If the transmission mechanism 13 is directly controlled to drive the connecting rod 12 and the main bevel gear 111 to move downward, tooth breakage may occur (i.e. the main bevel gear 111 and the bevel gear 112 cannot mesh directly). To address this issue and improve meshing accuracy, in the event of a sudden power mechanism failure, the driven bevel gear 112 will stop rotating synchronously with the connecting shaft 400. First, the drive mechanism 20 can be controlled to operate, driving the main bevel gear 111 to rotate until it reaches a position where it can directly mesh with the stationary driven bevel gear 112 when moving downwards. Next, the drive mechanism 20 is stopped, and the transmission mechanism 13 is controlled to move the connecting rod 12 downwards, allowing the main bevel gear 111 to mesh with the driven bevel gear 112. After meshing, the drive mechanism 20 is then activated again to continue transmitting power to the connecting shaft 400 under the action of the clutch mechanism 10, quickly switching the load equipment to a temporary operating state. The detection of the rotational position can be achieved using sensors and proximity switches, but this is not the focus of this invention and will not be detailed here. The key is that it enables rotational position detection and ensures proper meshing.

[0066] In some embodiments of the present invention, reference is made to... Figures 1 to 14As shown, the transmission mechanism 13 may include: a guide sleeve 131, a sliding support 132, a first gear 133, and a first worm gear mechanism 134. The guide sleeve 131 is fixedly installed above the connecting shaft 400 and is arranged perpendicular to the connecting shaft 400. The sliding support 132 is movably installed in the guide sleeve 131. The top of the outer wall of the sliding support 132 is provided with a rack 136 arranged along the axial direction of the sliding support 132. The first gear 133 is installed on one side of the guide sleeve 131 and meshes with the rack 136. The first worm gear mechanism 134 is coaxially connected to the first gear 133 to drive the first gear 133 to rotate. The connecting rod 12 is rotatably installed in the sliding support 132, and the bottom end of the connecting rod 12 passes through the sliding support 132 and is connected to the main bevel gear 111. The first worm gear mechanism 134 includes a first worm 1341 and a first worm 1342 that cooperate with each other. It can achieve a large speed ratio and prevent reverse transmission, thereby preventing the first gear 133 from rotating in the opposite direction, thus ensuring the stability of the entire device.

[0067] It is understandable that when the first worm gear mechanism 134 is working, the first gear 133 will rotate synchronously. Since the position of the first gear 133 is fixed, under the action of the rack 136 meshing with it, the sliding support 132, the connecting rod 12 mounted on the sliding support 132, and the main bevel gear 111 at the bottom of the connecting rod 12 will move up and down synchronously. That is, these components will move synchronously towards or away from the connecting shaft 400 (or from the bevel gear 112), realizing the back-and-forth switching of the main bevel gear 111 between the third working state and the fourth working state.

[0068] Because the first gear 133 and the rack 136 engage with toothed teeth, the vertical movement distance is more precise. Furthermore, the use of a first worm gear mechanism 134 for control, which has a self-locking function, effectively prevents the influence of reverse transmission force on other components of the clutch mechanism 10 during transmission.

[0069] In some embodiments of the present invention, reference is made to... Figures 11 to 13 As shown, a sliding key 1321 for guidance is provided on the outer wall of the sliding support 132. Specifically, the sliding key 1321 can be a plurality of protruding guide blocks provided on the outer wall of the sliding support 132. The plurality of guide blocks can be evenly distributed along the circumference of the sliding support 132, and each guide block is arranged along the axial direction of the sliding support 132. Correspondingly, a guide groove is provided on the inner wall of the guide sleeve 131 to cooperate with the guide blocks. Under the action of the guide blocks and the guide groove, the sliding support 132 can be ensured to move up and down along the axial direction of the guide sleeve 131. At the same time, it can also prevent rotation during the up and down movement, providing a good foundation for the subsequent meshing of the main bevel gear 111 and the driven bevel gear 112.

[0070] In some embodiments of the present invention, reference is made to... Figure 11 and Figure 12 As shown, a rotary bearing 1351 for radial support and a planar thrust bearing 1352 for axial support are provided between the sliding support 132 and the connecting rod 12. The rotary bearing 1351 and the planar thrust bearing 1352 together constrain the connecting rod 12 on the sliding support 132.

[0071] Specifically, there can be two rotary bearings 1351. The upper and lower parts of the inner wall of the sliding support 132 are respectively provided with first limiting grooves for installing the rotary bearings 1351. The two rotary bearings 1351 are respectively installed in the two first limiting grooves. There is one planar thrust bearing 1352. The inner wall of the sliding support 132 is provided with a second limiting groove below the lower first limiting groove. The planar thrust bearing 1352 is installed in the second limiting groove. The bottom end of the connecting rod 12 passes through the two rotary bearings 1351 and the planar thrust bearing 1352 in sequence and is installed in the sliding support 132. After extending out of the sliding support 132, it is coaxially connected with the main bevel gear 111.

[0072] Understandably, the rotary bearing 1351 provides radial support, and the planar thrust bearing 1352 provides axial support. The three bearings work together to constrain the connecting rod 12 onto the sliding support 132, so that the connecting rod 12 can move up and down with the sliding support 132, and can also rotate relative to the sliding support 132 to drive the rotation of the main bevel gear 111 at its bottom end, thereby driving the driven bevel gear 112 and the connecting shaft 400 and ensuring the reliability of the transmission of the emergency self-rescue device.

[0073] In some embodiments of the present invention, reference is made to... Figure 1 , Figures 8 to 12 As shown, the drive mechanism 20 may include a second worm gear mechanism fixedly mounted above the clutch mechanism 10. The second worm gear mechanism includes a second worm 21 and a second turbine 22 that cooperate with each other. The second turbine 22 is coaxially connected to the connecting rod 12 so that the connecting rod 12 can rotate synchronously with the second turbine 22, and the connecting rod 12 can move up and down relative to the second turbine 22.

[0074] Understandably, referring to Figure 1 and Figure 7When the clutch mechanism 10 is in its second operating state, i.e., the main bevel gear 111 and the driven bevel gear 112 are engaged, the rotation of the second worm gear 21 will drive the second turbine gear 22 to rotate. Consequently, the connecting rod 12 inside the second turbine gear 22 will rotate along with it. Simultaneously, the main bevel gear 111 at the bottom of the connecting rod 12 will drive the driven bevel gear 112 to rotate. Since the connecting shaft 400 is coaxial with the driven bevel gear 112, the connecting shaft 400 will inevitably rotate synchronously with the driven bevel gear 112, ultimately realizing the transmission of power from the drive mechanism 20 to the connecting shaft 400. The second worm gear mechanism uses a commonly used existing worm gear mechanism, which can achieve a large speed ratio while preventing reverse transmission, thereby preventing the reverse rotation of components such as the connecting rod 12 and the connecting shaft 400, ensuring the stability of the entire device.

[0075] In some embodiments of the present invention, reference is made to... Figure 4 and Figure 13 As shown, the upper end of the connecting rod 12 is provided with a spline 121, and the second turbine 22 has a groove in the middle that mates with the spline 121. Specifically, the spline 121 can be similar to the sliding key 1321 mentioned above, and can be a plurality of protruding strip-shaped limiting blocks provided on the upper outer side wall of the connecting rod 12. The plurality of limiting blocks are evenly distributed along the circumference of the connecting rod, and each limiting block is arranged along the axial direction of the connecting rod. Correspondingly, the groove in the second turbine 22 is also a strip-shaped groove. Under the action of the limiting blocks and the strip-shaped groove, when the second turbine 22 rotates, the connecting rod 12 can rotate synchronously with the second turbine 22; when the second turbine 22 is stationary, the connecting rod 12 can also move up and down relative to the second turbine 22, and no radial rotation will occur during the up and down movement.

[0076] Understandably, when it is necessary to adjust the angle of the main bevel gear 111 or transmit power to the connecting shaft 400, the second worm gear 21 can be activated, and the second turbine 22 will rotate accordingly. Under the action of the limiting block and the strip-shaped groove, the connecting rod 12, the bevel gear set, and the connecting shaft 400 can be driven to rotate better, thereby realizing power transmission. When it is necessary to control the main bevel gear 111 to disengage from the secondary bevel gear 112, the drive mechanism 20 does not work, and only the first worm gear mechanism 134 is activated. The first gear 133 rotates under the drive of the first worm gear mechanism 134, and then, under the action of the rack 136, the entire sliding support 132, including the connecting rod 12 inside it and the main bevel gear 111 at the bottom of the connecting rod 12, moves upward so that the main bevel gear 111 disengages from the secondary bevel gear 112. When the sliding support 132, the connecting rod 12, and the main bevel gear 111 move upward, the entire drive mechanism 20 remains stationary, that is, the upper end of the connecting rod 12 will move upward relative to the second turbine 22.

[0077] In some embodiments of the present invention, reference is made to... Figures 1 to 14As shown, it may also include a housing 30, which defines a first receiving cavity 31 that can surround and be fitted onto the connecting shaft 400. A second receiving cavity 32 that is perpendicularly connected to the first receiving cavity 31 is provided on the side wall of the housing 30. The clutch mechanism 10 is installed in the first receiving cavity 31 and the second receiving cavity 32. A mounting seat 40 for mounting the drive mechanism 20 is provided on the outside of the housing 30 opposite to the second receiving cavity 32. The second turbine 22 in the drive mechanism 20 is mounted on the mounting seat 40 through a connector 50.

[0078] Specifically, the entire housing 30 has a T-shaped structure. A through hole is formed on the housing 30 along its axial direction. The diameter of the through hole is greater than the sum of the diameter of the bevel gear 112 and twice the thickness of the main bevel gear 111. The space formed by this through hole is the first receiving cavity 31. A first through hole is formed on the housing 30 along its radial direction, communicating with the through hole. The inner diameter of the upper section of the first through hole is greater than the inner diameter of the lower section. The space formed by the first through hole is the second receiving cavity. A guide sleeve 131 is fitted into the lower section of the first through hole. A sliding support 132 is installed inside the guide sleeve 131, and a connecting rod 12 is installed inside the sliding support 132. The main bevel gear 111 is installed in the through hole and connected to the lower end of the connecting rod 12 that passes through the sliding support 132. The bevel gear 112 and the connecting shaft 400 are arranged in the through hole. The second turbine 22 is installed in the mounting base 40 above the sliding support 132 via a connector 50. The upper end of the connecting rod 12 passes through the second turbine 22. Among them, an upper rotary bearing is also provided between the connecting parts 50 and 40 to ensure that the second turbine 22 can rotate normally. The upper rotary bearing is used for radial support.

[0079] Of course, the housing 30 can be designed separately, or the housing in the power mechanism can be modified accordingly to realize the installation of the above-mentioned emergency self-rescue device.

[0080] In summary, the clutch mechanism of this invention adopts a first worm gear mechanism and a gear and rack configuration, which is both self-locking and increases the guiding distance during engagement, making it easy to implement. The drive mechanism adopts a second worm gear mechanism and a bevel gear transmission, which is self-locking and can achieve a large transmission ratio. Through the cooperation between the various components, the integration of the drive rescue is greatly improved, making it a universal drive module that simplifies system complexity and saves costs.

[0081] Reference Figures 1 to 14 As shown, a power mechanism according to an embodiment of the present invention includes a motor 200, a reducer 300 and the aforementioned emergency self-rescue device 100, with the connecting shaft 400 being the input shaft of the reducer 300.

[0082] According to an embodiment of the present invention, a power mechanism can achieve emergency self-rescue when the motor fails, reduce the occurrence of accidents, and improve the service life of the connected mechanical equipment.

[0083] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0084] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0085] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0086] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0087] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0088] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An emergency self-rescue device for a power mechanism, characterized in that, include: A clutch mechanism is mounted on the connecting shaft of a power mechanism. The clutch mechanism has a first working state and a second working state. In the first working state, the clutch mechanism is separated from the connecting shaft, and the connecting shaft operates independently. In the second working state, the clutch mechanism drives the connecting shaft to operate synchronously. A drive mechanism, which is mounted on the clutch mechanism, to drive the connecting shaft of the power mechanism. The clutch mechanism includes: A bevel gear, which is mounted on the connecting shaft and coaxially arranged with the connecting shaft; A main bevel gear is disposed above the connecting shaft and is arranged perpendicularly to the driven bevel gear. The main bevel gear has a third working state and a fourth working state. In the third working state, there is a distance between the main bevel gear and the driven bevel gear. In the fourth working state, the main bevel gear and the driven bevel gear are engaged. A connecting rod, the bottom end of which is coaxially connected to the main bevel gear, and the top end of which is connected to the drive mechanism; A transmission mechanism is connected to the connecting rod, and the transmission mechanism is used to drive the connecting rod to move up and down so that the main bevel gear switches back and forth between the third working state and the fourth working state; The transmission mechanism includes: A guide sleeve is fixedly installed above the connecting shaft and arranged perpendicularly to the connecting shaft. A sliding support is installed in the guide sleeve, which can move up and down. The top of the outer wall of the sliding support is provided with a rack arranged along the axial direction of the sliding support. The first gear is mounted on one side of the guide sleeve and meshes with the rack; A first worm gear mechanism is coaxially connected to the first gear to drive the first gear to rotate; The connecting rod is rotatably mounted in the sliding support, and the bottom end of the connecting rod passes through the sliding support and connects to the main bevel gear.

2. The emergency self-rescue device for a power mechanism according to claim 1, characterized in that, The outer wall of the sliding support is provided with a sliding key for guidance.

3. An emergency self-rescue device for a power mechanism according to claim 1, characterized in that, A rotary bearing for radial support and a planar thrust bearing for axial support are provided between the sliding support and the connecting rod. The rotary bearing and the planar thrust bearing together constrain the connecting rod on the sliding support.

4. An emergency self-rescue device for a power mechanism according to claim 1, characterized in that, The drive mechanism is a second worm gear mechanism fixedly installed above the clutch mechanism. The second worm gear includes a second worm and a second turbine connected to each other. The second turbine is connected to the connecting rod so that the connecting rod can rotate synchronously with the second turbine, and the connecting rod can move up and down relative to the second turbine.

5. An emergency self-rescue device for a power mechanism according to claim 4, characterized in that, The upper end of the connecting rod is provided with a spline, and the second turbine in the second worm gear is provided with a groove in the middle that mates with the spline.

6. An emergency self-rescue device for a power mechanism according to claim 1, characterized in that, It also includes a housing, which defines a first receiving cavity that can surround and be fitted onto the connecting shaft. The side wall of the housing is provided with a second receiving cavity that communicates with the first receiving cavity. The clutch mechanism is installed in the first receiving cavity and the second receiving cavity. The housing is provided with a mounting seat for installing the drive mechanism at a position opposite to the second receiving cavity.

7. A power mechanism, comprising a motor and a reducer, characterized in that, It also includes the emergency self-rescue device as described in any one of claims 1 to 6, wherein the connecting shaft is the input shaft of the reducer.

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