Lifting device and method of hoisting thereof

Abstract

The embodiment of the application provides a lifting device and a hoisting method thereof, wherein the lifting device comprises a shell, a first driving gear shaft, a first driven gear, a second driving gear shaft, a second driven gear shaft and an intermediate gear shaft arranged in the shell; the first driving gear shaft, the second driving gear shaft, the second driven gear shaft and the intermediate gear shaft are arranged in parallel; the gear part of the first driving gear shaft is arranged in mesh with the first driven gear to provide a first torque; the gear part of the second driving gear shaft is arranged in mesh with the gear part of the second driven gear shaft to provide a second torque different from the first torque; the gear part of the second driven gear shaft is arranged in mesh with the gear part of the intermediate gear shaft, and the shaft part of the intermediate gear shaft is sleeved with the first driven gear and is fixedly connected through a key to transmit different torques, so that the working efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of portable lifting device technology, specifically to a lifting device and its lifting method. Background Technology

[0002] In scenarios such as fire rescue, stage construction, outdoor installation, and industrial maintenance, there is often a need to lift and move materials of a certain weight. However, the use of large hoisting equipment is impractical. This has led to the widespread adoption of lifting equipment that uses general-purpose power tools such as electric drills to lift and move materials. However, the efficiency of lifting equipment in practical applications still needs to be improved.

[0003] Against this backdrop, how to improve the working efficiency of equipment has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, embodiments of this application provide a lifting device and a lifting method thereof to improve work efficiency.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions.

[0006] In a first aspect, embodiments of this application provide a lifting device, including: case; The first driving gear shaft, the first driven gear, the second driving gear shaft, the second driven gear shaft, and the intermediate gear shaft are disposed inside the housing; The first driving gear shaft, the second driving gear shaft, the second driven gear shaft, and the intermediate gear shaft are all arranged in parallel. The gear portion of the first driving gear shaft meshes with the first driven gear to provide a first torque; the gear portion of the second driving gear shaft meshes with the gear portion of the second driven gear shaft to provide a second torque, which is different from the first torque; the gear portion of the second driven gear shaft meshes with the gear portion of the intermediate gear shaft, and the first driven gear is sleeved on the shaft portion of the intermediate gear shaft and fixedly connected by a key to transmit different torques.

[0007] Optionally, the gear ratio between the gear portion of the first driving gear shaft and the second driven gear is 1:2, the gear ratio between the gear portion of the second driving gear shaft and the gear portion of the second driven gear shaft is 1:9, and the gear ratio between the gear portion of the second driven gear shaft and the gear portion of the intermediate gear shaft is 1:1.

[0008] Optionally, the first drive wheel shaft has a first connecting boss at its shaft end along the axial direction, and the second drive wheel shaft has a second connecting boss at its shaft end along the axial direction.

[0009] Optionally, the lengths of the first connecting boss and the second connecting boss are 1 / 3 to 1 / 2 of the shaft length; The outer peripheral surface shapes of the first connecting boss and the second connecting boss are matched with the output end of the power source, and are used to snap the output end of the power source.

[0010] Optionally, it also includes: a traction component disposed inside the housing, the traction component being fixedly sleeved on the shaft portion of the second driven gear shaft along the axial direction, the axis of which coincides with the axis of the second driven gear shaft.

[0011] Optionally, the traction component is provided with a traction groove for receiving the rope.

[0012] Optionally, it may also include: a first descent component and a second descent component disposed inside the housing; The first descent component is axially sleeved on the shaft portion of the intermediate gear shaft and fixedly connected to the shaft portion of the intermediate gear shaft; wherein, the shaft portion of the intermediate gear shaft passes through the first descent component, and both sides of the first descent component are supported by bearings on the inner wall of the housing; The second descent component is axially sleeved on the shaft portion of the second drive gear shaft and fixedly connected to the shaft portion of the second drive gear shaft; wherein, the shaft portion of the second drive gear shaft passes through the second descent component, and the two sides of the second descent component are supported on the inner wall of the housing by bearings.

[0013] Optionally, the first descent component is in an idle state in the clockwise rotation direction of the intermediate gear shaft; the first descent component is in a locked state in the counterclockwise rotation direction of the intermediate gear shaft to provide descent resistance.

[0014] Optionally, the second descent component is in an idle state in the clockwise rotation direction of the second drive gear shaft; the second descent component is in a locked state in the counterclockwise rotation direction of the second drive gear shaft to provide descent resistance.

[0015] Optionally, the first and second slow-descent components have the same structure and are provided with friction elements inside, which are used to contact the cavity wall of the inner cavity in the locked state.

[0016] Secondly, embodiments of this application provide a lifting method applied to the lifting equipment described in the first aspect above, the method comprising: When the power source drives the first drive gear shaft to rotate counterclockwise, the gear part of the first drive gear shaft drives the first driven gear to rotate clockwise. The first driven gear is fixed to the intermediate gear shaft by a key connection, driving the intermediate gear shaft to rotate clockwise synchronously. The gear part of the intermediate gear shaft meshes with the gear part of the second driven gear shaft, driving the second driven gear shaft to rotate counterclockwise, thereby driving the traction component to perform a lifting operation. When the power source drives the first driving gear shaft to rotate clockwise, the gear portion of the first driving gear shaft drives the first driven gear to rotate counterclockwise. The first driven gear is fixed to the intermediate gear shaft via a key connection, driving the intermediate gear shaft to rotate counterclockwise synchronously. The gear portion of the intermediate gear shaft meshes with the gear portion of the second driven gear shaft, driving the second driven gear shaft to rotate clockwise, thereby driving the traction component to perform a descent operation. Simultaneously, based on the counterclockwise rotation of the intermediate gear shaft, the first descent component sleeved on the intermediate gear shaft is in a locked state, providing descent resistance to the intermediate gear shaft. Furthermore, the gear portion of the second driven gear shaft meshes with the gear portion of the second driving gear shaft, driving the second driving gear shaft to rotate counterclockwise. Based on the counterclockwise rotation of the second driving gear shaft, the second descent component sleeved on the second driving gear shaft is in a locked state, providing descent resistance to the second driving gear shaft. or, When the power source drives the second drive gear shaft to rotate clockwise, the gear part of the second drive gear shaft meshes with the gear part of the second driven gear shaft, causing the second driven gear shaft to rotate counterclockwise, and the second driven gear shaft drives the traction component to perform a lifting operation; When the power source drives the second driving gear shaft to rotate counterclockwise, the gear portion of the second driving gear shaft meshes with the gear portion of the second driven gear shaft, causing the second driven gear shaft to rotate clockwise. The second driven gear shaft then drives the traction component to perform a descent operation. Simultaneously, based on the clockwise rotation of the second driving gear shaft, the second descent component sleeved on the second driving gear shaft is locked, providing descent resistance to the second driving gear shaft. Furthermore, the gear portion of the second driven gear shaft meshes with the gear portion of the intermediate gear shaft, causing the intermediate gear shaft to rotate counterclockwise. Based on the counterclockwise rotation of the intermediate gear shaft, the first descent component sleeved on the intermediate gear shaft is locked, providing descent resistance to the intermediate gear shaft.

[0017] The lifting device provided in this application embodiment includes a housing; a first driving gear shaft, a first driven gear, a second driving gear shaft, a second driven gear shaft, and an intermediate gear shaft disposed inside the housing; wherein the first driving gear shaft, the second driving gear shaft, the second driven gear shaft, and the intermediate gear shaft are all arranged in parallel; the gear portion of the first driving gear shaft meshes with the first driven gear to provide a first torque; the gear portion of the second driving gear shaft meshes with the gear portion of the second driven gear shaft to provide a second torque, the second torque being different from the first torque; the gear portion of the second driven gear shaft meshes with the gear portion of the intermediate gear shaft, and the first driven gear is sleeved on the shaft portion of the intermediate gear shaft and fixedly connected by a key connection to transmit different torques.

[0018] As can be seen, the lifting device in this application embodiment can output different torques through the first driving gear shaft and the first driven gear, as well as the second driving gear shaft and the second driven gear shaft, which are set inside the housing, thereby meeting different hoisting requirements, reducing the energy loss of the device, and correspondingly improving the working efficiency of the lifting device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a cross-sectional schematic diagram of the lifting device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the power output path of the lifting device provided in the embodiments of this application. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] As described in the background section, scenarios such as fire rescue, stage engineering, outdoor installation, and industrial maintenance often require the lifting and handling of materials of a certain weight. However, the use of large hoisting equipment is impractical. This has led to the widespread adoption of lifting equipment based on general-purpose power tools such as electric drills to lift and handle materials. However, the working efficiency of lifting equipment in practical applications still needs to be improved.

[0023] This is because current lifting equipment typically uses single-stage gear transmission, driven by only one power source. However, in actual use, the lifting requirements for materials vary in weight. When lifting materials of different weights using a single-stage gear transmission driven by a single power source, significant energy loss occurs for materials with large weight differences. This makes it difficult to balance the lifting speed and load capacity of the lifting equipment, thereby reducing its working efficiency.

[0024] In view of this, embodiments of this application provide an improved lifting device, including a housing; a first driving gear shaft, a first driven gear, a second driving gear shaft, a second driven gear shaft, and an intermediate gear shaft disposed inside the housing; wherein the first driving gear shaft, the second driving gear shaft, the second driven gear shaft, and the intermediate gear shaft are all arranged in parallel; the gear portion of the first driving gear shaft meshes with the first driven gear to provide a first torque; the gear portion of the second driving gear shaft meshes with the gear portion of the second driven gear shaft to provide a second torque, the second torque being different from the first torque; the gear portion of the second driven gear shaft meshes with the gear portion of the intermediate gear shaft, and the first driven gear is sleeved on the shaft portion of the intermediate gear shaft and fixedly connected by a key connection to transmit different torques.

[0025] As can be seen, the lifting device in this application embodiment can output different torques through the first driving gear shaft and the first driven gear, as well as the second driving gear shaft and the second driven gear shaft, which are set inside the housing, thereby meeting different hoisting requirements, reducing the energy loss of the device, and correspondingly improving the working efficiency of the lifting device.

[0026] Based on the above ideas Figure 1 An exemplary cross-sectional schematic diagram of a lifting device according to an embodiment of this application is shown. For example... Figure 1 As shown, the lifting device may include: a housing 1, a first driving gear shaft 2, a first driven gear 3, a second driving gear shaft 4, a second driven gear shaft 5, and an intermediate gear shaft 6 disposed inside the housing 1. Wherein, Figure 1 The first driving gear shaft 2 and the first driven gear 3 are located in the dotted circle section, while the second driving gear shaft 4, the second driven gear shaft 5, and the intermediate gear shaft 6 are located in the dashed circle section. Figure 1The first driving gear shaft 2, the first driven gear 3, and the second driving gear shaft 4 are not specifically shown; the positions indicated by the arrows are only used to indicate where the first driving gear shaft 2, the first driven gear 3, and the second driving gear shaft 4 are located.

[0027] In this embodiment, the first driving gear shaft 2, the second driving gear shaft 4, the second driven gear shaft 5, and the intermediate gear shaft 6 are all arranged in parallel. Moreover, to meet the lifting requirements of materials of different weights, the first driving gear shaft 2 and the second driving gear shaft 4 can provide different torques based on a power source. The power source can be, for example, an electric drill.

[0028] In an optional example, to enable the power source to drive different gear shafts, the end of the shaft portion of the first drive wheel shaft 2 in this embodiment may be provided with a first connecting boss along the axial direction. Figure 1 The solid circle corresponding to the position of the first drive wheel shaft 2 is provided at the end of the shaft of the second drive wheel shaft 4 along the axial direction. Figure 1 The actual circled position corresponds to the second drive wheel axle 4.

[0029] In an optional implementation, the lengths of the first connecting boss and the second connecting boss can be 1 / 3 to 1 / 2 of the shaft length. If the lengths of the first and second connecting bosses are too small, they may not be compatible with the length of the power source output end, easily causing damage during lifting operations, or even leading to the detachment of the power source and a safety accident. If the lengths of the first and second connecting bosses are too large, they may exceed the length of the power source output end, affecting the normal accommodation and movement of the power source output end within the mounting hole. Therefore, after comprehensively considering factors such as the size of the power source output end, the size of the gear shaft, manufacturing costs, and the interaction between the two, the embodiments of this application set the lengths of the first and second connecting bosses to 1 / 3 to 1 / 2 of the shaft length. For example, the length of the first connecting boss can be 1 / 3, 2 / 5, 3 / 7, 3 / 8, or 1 / 2 of the shaft length, etc.

[0030] Furthermore, to ensure compatibility between the connecting boss and the output end of the power source, the outer peripheral surface shapes of the first and second connecting bosses in this embodiment can match the output end of the power source for engaging the output end. The outer peripheral surface shapes of the first and second connecting bosses can be, for example, square, hexagonal, D-shaped, etc., and this embodiment does not impose any limitations on this, as long as the outer peripheral surface shape of the connecting bosses (including the first and second connecting bosses) located at the end of the shaft is compatible with the output end of the power source.

[0031] To ensure the stability of the lifting equipment's movement, the first driving gear shaft 2, the second driving gear shaft 4, the second driven gear shaft 5, and the intermediate gear shaft 6 in this embodiment can be integrally formed gear shafts. The gear portion of the first driving gear shaft 2 can mesh with the first driven gear 3 to provide a first torque. The gear portion of the second driving gear shaft 4 can mesh with the gear portion of the second driven gear shaft 5 to provide a second torque. The second torque is different from the first torque.

[0032] Furthermore, in order to achieve multi-stage gear transmission, in this embodiment, the gear portion of the second driven gear shaft 5 can mesh with the gear portion of the intermediate gear shaft 6, and the first driven gear 3 can be sleeved on the shaft portion of the intermediate gear shaft 6 and fixedly connected by a key connection to transmit different torques.

[0033] As can be seen, the lifting device in this embodiment of the application is driven by the intermediate gear shaft 6, which can cascade the first driving gear shaft 2, the first driven gear 3, the second driving gear shaft 4, and the second driven gear shaft 5, and the torque provided by the multi-stage gears does not affect each other.

[0034] In an optional example, the gear ratio between the gear portion of the first driving gear shaft 2 and the second driven gear 3 can be 1:2, the gear ratio between the gear portion of the second driving gear shaft 4 and the gear portion of the second driven gear shaft 5 can be 1:9, and, in order to ensure that the gear portion of the intermediate gear shaft meshing with the gear portion of the second driven gear shaft 5 does not affect the rotation of the second driven gear shaft, the gear ratio between the gear portion of the second driven gear shaft and the gear portion of the intermediate gear shaft can be 1:1.

[0035] It should be noted that the gear ratio in the embodiments of this application is determined based on the number of gears. Moreover, when the first driving gear shaft and the second driving gear shaft are connected in series through an intermediate gear shaft, the speed ratio between the first driving gear shaft 2 and the first driven gear can be 1:18, while the second driving gear shaft 4 and the second driven gear shaft 5 can be connected without an intermediate gear shaft, so the speed ratio between the second driving gear shaft 4 and the second driven gear shaft is still 1:9.

[0036] In some embodiments, see Figure 1 As shown, in order to realize the lifting operation of the lifting equipment, the lifting equipment in this embodiment of the application may further include a traction component 7 disposed inside the housing. The traction component 7 may be fixedly sleeved on the shaft portion of the second driven gear shaft 5 along the axial direction, and its axis coincides with the axis of the second driven gear shaft, so that the traction component can be driven to rotate based on the rotation of the second driven gear shaft 5.

[0037] To facilitate understanding of the transmission of the traction component by the first and second drive gear shafts, Figure 2 An exemplary diagram illustrating the power output path of a lifting device is shown. (For example...) Figure 2 As shown, the solid arrow indicates the power output path of the power source driving the first drive gear shaft to rotate, and the dashed arrow indicates the power output path of the power source driving the second drive gear shaft to rotate.

[0038] When the power source drives the first drive gear shaft 2 to rotate, the gear part of the first drive gear shaft 2 drives the first driven gear 3 to rotate. Since the first driven gear 3 is fixed to the intermediate gear shaft 6 by a key connection, it can drive the intermediate gear shaft 6 to rotate. Since the gear part of the intermediate gear shaft 6 meshes with the gear part of the second driven gear shaft 5, it can drive the second driven gear shaft 5 to rotate. In turn, the second driven gear shaft 5 drives the traction component 7 to rotate.

[0039] When the power source drives the second drive gear shaft 4 to rotate, the gear part of the second drive gear shaft 4 meshes with the gear part of the second driven gear shaft 5, thereby driving the second driven gear 5 to rotate, and then the second driven gear shaft 5 drives the traction component 7 to rotate.

[0040] In an optional implementation, the traction component 7 may be provided with a traction groove 8 for accommodating the rope, so that when the second driven gear shaft 5 rotates, it drives the traction component 7 to rotate synchronously, thereby lifting and lowering the heavy object by winding and unwinding the rope.

[0041] In some embodiments, see Figure 1 As shown, in order to ensure the safety of the lifting equipment during the lifting operation and to avoid the risk of falling objects due to the sudden disconnection of the power source, the lifting equipment in this embodiment may also include a first slow-descent component 9 and a second slow-descent component 10 disposed inside the housing.

[0042] The first deceleration component 9 is axially sleeved on the shaft portion of the intermediate gear shaft 6 and fixedly connected to the shaft portion of the intermediate gear shaft 6, thereby reducing the rotational speed of the intermediate gear shaft 6. The shaft portion of the intermediate gear shaft 6 can pass through the first deceleration component 9, and both sides of the first deceleration component 9 can be supported by bearings on the inner wall of the housing 1 to ensure the stability of the first deceleration component 9.

[0043] The second descent component 10 is axially sleeved on the shaft portion of the second drive gear shaft 5 and fixedly connected to the shaft portion of the second drive gear shaft 5, thereby reducing the rotational speed of the second drive gear shaft 5. The shaft portion of the second drive gear shaft 5 passes through the second descent component 10, and both sides of the second descent component 10 are supported by bearings on the inner wall of the housing 1 to ensure the stability of the second descent component 10.

[0044] In an optional implementation, the shaft portion of the intermediate gear shaft 6 passes through the first descent component 9, which can be in an idle state in the clockwise rotation direction of the intermediate gear shaft 6; conversely, the first descent component 9 can be in a locked state in the counterclockwise rotation direction of the intermediate gear shaft 6 to provide descent resistance.

[0045] In an optional implementation, the shaft portion of the second drive gear shaft 4 passes through the second descent member 10. The second descent member 10 can be in an idle state in the clockwise rotation direction of the second drive gear shaft 4; conversely, the second descent member 10 can be in a locked state in the counterclockwise rotation direction of the second drive gear shaft 4 to provide descent resistance.

[0046] See Figure 2 As shown, when the power source drives the first driving gear shaft 2 to rotate counterclockwise, with the gear portion of the first driving gear shaft 2 meshing with the first driven gear 3, the first driven gear 3 rotates clockwise. Driven by the first driven gear 3, the intermediate gear shaft 6 can rotate clockwise synchronously. The first deceleration component 9 can be in an idle state in the clockwise rotation direction of the intermediate gear shaft, so the rotational speed of the intermediate gear shaft 6 is not affected by the first deceleration component 9. At the same time, when the gear portion of the first intermediate gear shaft 6 meshes with the gear portion of the second driven gear shaft 5, the second driven gear shaft 5 rotates counterclockwise driven by the intermediate gear shaft 6. Furthermore, when the gear portion of the second driven gear shaft 5 meshes with the gear portion of the second driving gear shaft 4, the second driving gear shaft 4 rotates clockwise driven by the second driven gear shaft 5. The second deceleration component 10 will also be in an idle state, so the rotational speed of the second driving gear shaft 4 is not affected by the second deceleration component 10.

[0047] When the first driving gear shaft 2 rotates clockwise, the intermediate gear shaft 6 can rotate counterclockwise synchronously driven by the first driven gear 3. The first deceleration component 9 can be locked, and the rotational speed of the intermediate gear shaft 6 is affected by the deceleration resistance of the first deceleration component 9, resulting in a decrease in rotational speed. Simultaneously, driven by the intermediate gear shaft 6, the second driven gear shaft 5 rotates clockwise, and driven by the second driven gear shaft 5, the second driving gear shaft 4 rotates counterclockwise. The second deceleration component 10 can be locked, and the rotational speed of the second driving gear shaft 4 is affected by the deceleration resistance of the second deceleration component 10, resulting in a decrease in rotational speed.

[0048] Similarly, when the second driving gear shaft 4 rotates clockwise, the second descent component 10 is in an idle state, so the rotational speed of the second driving gear shaft 4 is not affected by the second descent component 10. At the same time, driven by the second driving gear shaft 4, the second driven gear shaft 5 rotates counterclockwise; driven by the second driven gear shaft 5, the intermediate gear shaft 6 rotates clockwise, and the first descent component 9 is also in an idle state, so the rotational speed of the intermediate gear shaft 6 is not affected by the first descent component 9.

[0049] When the second driving gear shaft 4 rotates counterclockwise, the second descent component 10 is locked, and the rotational speed of the second driving gear shaft 4 is affected by the descent resistance of the second descent component 10, resulting in a decrease in rotational speed. Simultaneously, driven by the second driving gear shaft 4, the second driven gear shaft 5 rotates clockwise; driven by the second driven gear shaft 5, the intermediate gear shaft 6 rotates counterclockwise, and the first descent component is also locked. Therefore, the rotational speed of the intermediate gear shaft 6 is affected by the descent resistance of the first descent component 9, resulting in a decrease in rotational speed.

[0050] In an optional example, to ensure transmission synchronization, the first deceleration component 9 and the second deceleration component 10 in this embodiment have the same structure. Furthermore, to ensure that the first deceleration component 9 provides deceleration resistance to the intermediate gear shaft 6 in the locked state, thereby reducing its rotational speed, and that the second deceleration component 10 provides deceleration resistance to the second drive gear shaft 4 in the locked state, thereby reducing its rotational speed, friction elements may be provided inside the first deceleration component 9 and the second deceleration component 10 in this embodiment. Figure 1 (not shown in the image), the friction element is used to contact the cavity wall of the inner cavity in the locked state.

[0051] To achieve contact between the friction element and the cavity wall of the deceleration component, in this embodiment, the friction element can be driven by the movement of the deceleration component to perform centrifugal motion. This centrifugal friction element then contacts the cavity wall of the deceleration component, providing deceleration resistance. For example, the intermediate gear shaft 6 drives the first deceleration component 9 to rotate counterclockwise, thus locking the first deceleration component 9. The friction element inside performs centrifugal motion under counterclockwise rotation, contacting the cavity wall of the first deceleration component 9 and generating deceleration resistance opposite to the direction of movement of the intermediate gear shaft 6. This suppresses the counterclockwise rotation of the intermediate gear shaft 6, thereby reducing its operating speed.

[0052] As can be seen, the lifting device of this application embodiment can output different torques through the first driving gear shaft and the first driven gear, as well as the second driving gear shaft and the second driven gear shaft, which are set inside the housing, thereby meeting different hoisting requirements, reducing the energy loss of the device, and correspondingly improving the working efficiency of the lifting device.

[0053] As an optional implementation, this application embodiment also provides a lifting method, wherein the method described below can be considered as the method steps to be performed based on the above-mentioned lifting equipment to achieve lifting and lowering. The method includes: When the power source drives the first drive gear shaft to rotate counterclockwise, the gear part of the first drive gear shaft drives the first driven gear to rotate clockwise. The first driven gear is fixed to the intermediate gear shaft by a key connection, driving the intermediate gear shaft to rotate clockwise synchronously. The gear part of the intermediate gear shaft meshes with the gear part of the second driven gear shaft, driving the second driven gear shaft to rotate counterclockwise, thereby driving the traction component to perform a lifting operation. When the power source drives the first driving gear shaft to rotate clockwise, the gear portion of the first driving gear shaft drives the first driven gear to rotate counterclockwise. The first driven gear is fixed to the intermediate gear shaft via a key connection, driving the intermediate gear shaft to rotate counterclockwise synchronously. The gear portion of the intermediate gear shaft meshes with the gear portion of the second driven gear shaft, driving the second driven gear shaft to rotate clockwise, thereby driving the traction component to perform a descent operation. Simultaneously, based on the counterclockwise rotation of the intermediate gear shaft, the first descent component sleeved on the intermediate gear shaft is in a locked state, providing descent resistance to the intermediate gear shaft. Furthermore, the gear portion of the second driven gear shaft meshes with the gear portion of the second driving gear shaft, driving the second driving gear shaft to rotate counterclockwise. Based on the counterclockwise rotation of the second driving gear shaft, the second descent component sleeved on the second driving gear shaft is in a locked state, providing descent resistance to the second driving gear shaft. or, When the power source drives the second drive gear shaft to rotate clockwise, the gear part of the second drive gear shaft meshes with the gear part of the second driven gear shaft, causing the second driven gear shaft to rotate counterclockwise, and the second driven gear shaft drives the traction component to perform a lifting operation; When the power source drives the second driving gear shaft to rotate counterclockwise, the gear portion of the second driving gear shaft meshes with the gear portion of the second driven gear shaft, causing the second driven gear shaft to rotate clockwise. The second driven gear shaft then drives the traction component to perform a descent operation. Simultaneously, based on the clockwise rotation of the second driving gear shaft, the second descent component sleeved on the second driving gear shaft is locked, providing descent resistance to the second driving gear shaft. Furthermore, the gear portion of the second driven gear shaft meshes with the gear portion of the intermediate gear shaft, causing the intermediate gear shaft to rotate counterclockwise. Based on the counterclockwise rotation of the intermediate gear shaft, the first descent component sleeved on the intermediate gear shaft is locked, providing descent resistance to the intermediate gear shaft.

[0054] As can be seen, the lifting method of this application embodiment can output different torques through the first driving gear shaft and the first driven gear, as well as the second driving gear shaft and the second driven gear shaft, which are set inside the housing of the lifting equipment, thereby meeting different lifting requirements, reducing the energy loss of the equipment, and correspondingly improving the working efficiency of the lifting equipment.

[0055] The foregoing describes multiple embodiment schemes provided by the embodiments of this application. The optional methods described in each embodiment scheme can be combined and cross-referenced with each other without conflict, thereby extending to a variety of possible embodiment schemes. These can all be considered as the embodiment schemes disclosed and published by the embodiments of this application.

[0056] While the embodiments disclosed above are described in this application, this application is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of this application; therefore, the scope of protection of this application should be determined by the scope defined in the claims.

Claims

1. A lifting device, characterized in that, include: case; The first driving gear shaft, the first driven gear, the second driving gear shaft, the second driven gear shaft, and the intermediate gear shaft are disposed inside the housing; The first driving gear shaft, the second driving gear shaft, the second driven gear shaft, and the intermediate gear shaft are all arranged in parallel. The gear portion of the first driving gear shaft meshes with the first driven gear to provide a first torque; the gear portion of the second driving gear shaft meshes with the gear portion of the second driven gear shaft to provide a second torque, which is different from the first torque; the gear portion of the second driven gear shaft meshes with the gear portion of the intermediate gear shaft, and the first driven gear is sleeved on the shaft portion of the intermediate gear shaft and fixedly connected by a key to transmit different torques.

2. The lifting device according to claim 1, characterized in that, The gear ratio between the gear portion of the first driving gear shaft and the second driven gear is 1:2, the gear ratio between the gear portion of the second driving gear shaft and the gear portion of the second driven gear shaft is 1:9, and the gear ratio between the gear portion of the second driven gear shaft and the gear portion of the intermediate gear shaft is 1:

1.

3. The lifting device according to claim 1, characterized in that, The first drive wheel shaft has a first connecting boss at its shaft end along the axial direction, and the second drive wheel shaft has a second connecting boss at its shaft end along the axial direction.

4. The lifting device according to claim 3, characterized in that, The lengths of the first connecting boss and the second connecting boss are 1 / 3 to 1 / 2 of the shaft length; The outer peripheral surface shapes of the first connecting boss and the second connecting boss are matched with the output end of the power source, and are used to snap the output end of the power source.

5. The lifting device according to claim 1, characterized in that, Also includes: The traction component is disposed inside the housing and is fixedly sleeved on the shaft portion of the second driven gear shaft along the axial direction, with its axis coinciding with the axis of the second driven gear shaft.

6. The lifting device according to claim 5, characterized in that, The traction component is provided with a traction groove for accommodating the rope.

7. The lifting device according to claim 1, characterized in that, Also includes: The first and second slow-descent components are disposed inside the housing; The first descent component is axially sleeved on the shaft portion of the intermediate gear shaft and fixedly connected to the shaft portion of the intermediate gear shaft; wherein, the shaft portion of the intermediate gear shaft passes through the first descent component, and both sides of the first descent component are supported by bearings on the inner wall of the housing; The second descent component is axially sleeved on the shaft portion of the second drive gear shaft and fixedly connected to the shaft portion of the second drive gear shaft; wherein, the shaft portion of the second drive gear shaft passes through the second descent component, and the two sides of the second descent component are supported on the inner wall of the housing by bearings.

8. The lifting device according to claim 7, characterized in that, The first descent component is in an idle state in the clockwise rotation direction of the intermediate gear shaft; the first descent component is in a locked state in the counterclockwise rotation direction of the intermediate gear shaft to provide descent resistance.

9. The lifting device according to claim 7, characterized in that, The second descent component is in an idle state in the clockwise rotation direction of the second drive gear shaft; the second descent component is in a locked state in the counterclockwise rotation direction of the second drive gear shaft to provide descent resistance.

10. The lifting device according to claim 7, characterized in that, The first and second slow-descent components have the same structure and are equipped with friction elements inside, which are used to contact the cavity wall of the inner cavity in the locked state.

11. A lifting method, characterized in that, The method, applied to the lifting device according to any one of claims 1 to 10, comprises: When the power source drives the first drive gear shaft to rotate counterclockwise, the gear part of the first drive gear shaft drives the first driven gear to rotate clockwise. The first driven gear is fixed to the intermediate gear shaft by a key connection, driving the intermediate gear shaft to rotate clockwise synchronously. The gear part of the intermediate gear shaft meshes with the gear part of the second driven gear shaft, driving the second driven gear shaft to rotate counterclockwise, thereby driving the traction component to perform a lifting operation. When the power source drives the first driving gear shaft to rotate clockwise, the gear portion of the first driving gear shaft drives the first driven gear to rotate counterclockwise. The first driven gear is fixed to the intermediate gear shaft via a key connection, driving the intermediate gear shaft to rotate counterclockwise synchronously. The gear portion of the intermediate gear shaft meshes with the gear portion of the second driven gear shaft, driving the second driven gear shaft to rotate clockwise, thereby driving the traction component to perform a descent operation. Simultaneously, based on the counterclockwise rotation of the intermediate gear shaft, the first descent component sleeved on the intermediate gear shaft is in a locked state, providing descent resistance to the intermediate gear shaft. Furthermore, the gear portion of the second driven gear shaft meshes with the gear portion of the second driving gear shaft, driving the second driving gear shaft to rotate counterclockwise. Based on the counterclockwise rotation of the second driving gear shaft, the second descent component sleeved on the second driving gear shaft is in a locked state, providing descent resistance to the second driving gear shaft. or, When the power source drives the second drive gear shaft to rotate clockwise, the gear part of the second drive gear shaft meshes with the gear part of the second driven gear shaft, causing the second driven gear shaft to rotate counterclockwise, and the second driven gear shaft drives the traction component to perform a lifting operation; When the power source drives the second driving gear shaft to rotate counterclockwise, the gear portion of the second driving gear shaft meshes with the gear portion of the second driven gear shaft, causing the second driven gear shaft to rotate clockwise. The second driven gear shaft then drives the traction component to perform a descent operation. Simultaneously, based on the clockwise rotation of the second driving gear shaft, the second descent component sleeved on the second driving gear shaft is locked, providing descent resistance to the second driving gear shaft. Furthermore, the gear portion of the second driven gear shaft meshes with the gear portion of the intermediate gear shaft, causing the intermediate gear shaft to rotate counterclockwise. Based on the counterclockwise rotation of the intermediate gear shaft, the first descent component sleeved on the intermediate gear shaft is locked, providing descent resistance to the intermediate gear shaft.

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