Lifting device
By coordinating the fixing components, truss, actuation mechanism, and electromagnetic power-off brake of the lifting device, the problem of low efficiency in handling heavy objects in workshops without bridge cranes was solved, achieving efficient handling of heavy objects and normal operation of the production process.
Patent Information
- Application Number
- CN202422197846.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-09-09
AI Technical Summary
In factories where bridge cranes have not been installed, existing technologies are inefficient and disrupt the production process when heavy objects need to be moved.
A lifting device is provided, including a fixing component, a truss, an actuation mechanism, an electromagnetic de-energizer, and a controller. The controller controls the actuation mechanism and the electromagnetic de-energizer to achieve the rotation and position fixation of the truss, and the lifting mechanism is used to move heavy objects.
In factories without overhead cranes, efficient handling of heavy objects is achieved, improving handling efficiency and reducing the impact on the production process.
Smart Images
Figure CN223892307U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of lifting equipment technology, and more particularly to a lifting device. Background Technology
[0002] During product manufacturing in factories, it is often necessary to move molds, raw materials, and finished products. Existing factories typically have overhead cranes installed above workshops, warehouses, and material yards for material handling. The bridge of the overhead crane runs longitudinally along tracks laid on elevated structures on both sides, making full use of the space beneath the bridge for material handling.
[0003] However, some factory buildings were not designed to accommodate heavy-duty moving activities and therefore did not include structures for installing bridge cranes. However, later in the factory's operation, when heavy objects need to be moved, the lack of a bridge crane necessitates manual labor or driving a crane truck into the factory, resulting in low efficiency and disruption to normal production processes. Summary of the Invention
[0004] This application provides a lifting device that solves the technical problem of moving heavy objects in factories that do not have a structure for installing a bridge crane.
[0005] This application provides a lifting device comprising: a fixing member; a truss; a first shaft, one end of which is connected to the end of the truss and rotatably connected to the fixing member; a second shaft, one end of which is connected to the end of the truss and rotatably connected to the fixing member; an actuation mechanism mounted on the fixing member and connected to the second shaft, configured to drive the second shaft to rotate; an electromagnetic power-off brake mounted on the fixing member and connected to the first or second shaft, configured to clamp the first or second shaft when power is off; a lifting mechanism connected to the truss; and a controller, the actuation mechanism and the electromagnetic power-off brake being connected to a power source via the controller; the controller being configured to control the energization and de-energization of the actuation mechanism and the electromagnetic power-off brake, and the rotation direction of the output end of the actuation mechanism; wherein the axis of the first shaft coincides with the axis of the second shaft, and both the axis of the first shaft and the axis of the second shaft are vertically aligned.
[0006] In one possible implementation, the actuation mechanism includes: a motor mounted on the fixture and electrically connected to the controller; and a reduction gear assembly, the input of which is connected to the shaft of the motor, and the output of which is connected to the second shaft.
[0007] In one possible implementation, the reduction assembly includes: a first gear mounted on the shaft of the motor; and a second gear mounted on the second shaft and meshing with the first gear; wherein the number of teeth on the first gear is less than the number of teeth on the second gear.
[0008] In one possible implementation, the motor is a DC motor; the controller includes a first switch, a second switch, and a third switch that are linked together; the first and second connection points of the first switch are both connected to the positive terminal of the power supply, and the third connection point of the first switch is connected to the electromagnetic power-off brake; the first and second connection points of the second switch are respectively connected to the positive and negative terminals of the power supply, and the first and second connection points of the third switch are respectively connected to the negative and positive terminals of the power supply; the third connection points of the second and third switches are both connected to the actuation mechanism; when the controller is in a first state, the third connection point of the first switch is connected to the first connection point, the third connection point of the second switch is connected to the first connection point, and the third connection point of the third switch is connected to the first connection point; when the controller is in a second state, the third connection point of the first switch is connected to the second connection point, the third connection point of the second switch is connected to the second connection point, and the third connection point of the third switch is connected to the second connection point; when the controller is in a third state, the first, second, and third switches are all in an open state.
[0009] In one possible implementation, the lifting device further includes: a rail disposed on the bottom surface of the truss; and the lifting mechanism includes an electric hoist slidably mounted on the rail.
[0010] In one possible implementation, the lifting device further includes: a first baffle connected to one end of the track; and a second baffle connected to the end of the track away from the first baffle.
[0011] In one possible implementation, the first axis is located above the truss, and the second axis is located below the truss.
[0012] The technical solutions provided in this application embodiment have at least the following technical effects:
[0013] The lifting device provided in this application includes a fixing component, a truss, a first shaft, a second shaft, an actuation mechanism, an electromagnetic de-energizer, a lifting mechanism, and a controller. The fixing component is used to install itself onto the wall or structural steel column of a factory building. When using this lifting device to lift a heavy object, the controller first controls the actuation mechanism, causing it to rotate the truss above the heavy object via the second shaft. Then, the controller de-energizes the actuation mechanism and the electromagnetic de-energizer, causing the electromagnetic de-energizer to clamp the first shaft, thus fixing the position of the truss. Finally, the lifting mechanism is controlled to lift the heavy object. When using this lifting device to move a heavy object after it has been lifted, the controller first controls the actuation mechanism, causing it to rotate the truss above the destination via the second shaft. Then, the controller de-energizes the braking mechanism and the electromagnetic de-energizer, causing the electromagnetic de-energizer to clamp the first shaft, thus fixing the position of the truss. Finally, the lifting device is controlled to lower the heavy object. This lifting device can be installed on the walls or structural steel columns of a factory building, enabling the handling of heavy objects in factories where it is not possible to install a bridge crane. Furthermore, the handling process can be controlled via a controller, achieving high handling efficiency. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a front view of a lifting device provided in an embodiment of this application;
[0016] Figure 2 A schematic diagram of a lifting device without a lifting mechanism provided in an embodiment of this application;
[0017] Figure 3 A circuit diagram of a controller provided in one embodiment of this application. Detailed Implementation
[0018] 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 some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0019] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., 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 the embodiments of this application and for 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 application. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0020] This application provides a lifting device, such as... Figures 1 to 3 As shown, the lifting device includes a fixing component 100, a truss 200, a first shaft 300a, a second shaft 300b, an actuation mechanism 400, an electromagnetic de-energizer 500, a lifting mechanism 600, and a controller 700.
[0021] The fastener 100 can be installed on a wall or a structural steel column. When the fastener 100 is installed on a wall, it can be installed using expansion bolts; when the fastener 100 is installed on a structural steel column, it can be installed by welding or bolting.
[0022] One end of the first shaft 300a is connected to the end of the truss 200, and the first shaft 300a is rotatably connected to the fixed member 100. One end of the second shaft 300b is connected to the end of the truss 200, and the second shaft 300b is rotatably connected to the fixed member 100. The truss 200 can rotate on the fixed member 100 via the first shaft 300a and the second shaft 300b. The axis of the first shaft 300a coincides with the axis of the second shaft 300b, and both the axes of the first shaft 300a and the second shaft 300b are vertically aligned.
[0023] The actuation mechanism 400 is mounted on the fixed member 100 and is connected to the second shaft 300b for transmission, and is configured to drive the second shaft 300b to rotate. The actuation mechanism 400 drives the truss 200 to rotate as a whole through the second shaft 300b, while the first shaft 300a connected to the truss 200 rotates on the fixed member 100.
[0024] An electromagnetic power-off brake 500 is mounted on the fixing member 100 and connected to a first shaft 300a or a second shaft 300b. The electromagnetic power-off brake 500 is configured to clamp the first shaft 300a or the second shaft 300b when power is lost. By clamping the first shaft 300a or the second shaft 300b, the electromagnetic power-off brake 500 can stop the truss 200 from rotating and fix the position of the truss 200, preventing the truss 200 from swinging and posing a safety hazard to workers. For example, in... Figure 1 and Figure 2 In the lifting device shown, the electromagnetic power failure brake 500 is installed on the fixing member 100 and connected to the first shaft 300a. When the power is cut off, the electromagnetic power failure brake 500 clamps the first shaft 300a, thereby stopping the truss 200 from rotating and keeping its position fixed.
[0025] The lifting mechanism 600 is connected to the truss 200 and is used to lift and lower heavy objects.
[0026] The actuation mechanism 400 and the electromagnetic power-off brake 500 are connected to the power supply via a controller 700; the controller 700 is configured to control the energization and de-energization of the actuation mechanism 400 and the electromagnetic power-off brake 500, as well as the rotation direction of the output terminal of the actuation mechanism 400.
[0027] When the controller 700 energizes the actuator 400 and the electromagnetic de-energizing brake 500, the electromagnetic de-energizing brake 500 releases either the first shaft 300a or the second shaft 300b, allowing the fixed member 100 to rotate. The output end of the actuator 400 rotates, driving the second shaft 300b to rotate. Furthermore, the controller 700 can control the rotation direction of the truss 200 by controlling the rotation direction of the brake mechanism's output end.
[0028] Specifically, such as Figure 1 and Figure 2 As shown, the fixing member 100 includes a base plate 110, and a first shaft 300a bearing 120, a second shaft 300b bearing 130, an actuator seat 140, and a brake seat 150 disposed on the base plate 110. Bearings are mounted on both the first shaft 300a and the second shaft 300b. The bearing on the first shaft 300a is located within the first shaft 300a bearing 120, and the bearing on the second shaft 300b is located within the second shaft 300b bearing 130. An electromagnetic de-energizer 500 is mounted on the actuator seat 140. An actuation mechanism 400 is mounted on the actuator seat 140.
[0029] When using this lifting device to lift heavy objects, firstly, the controller 700 controls the actuator 400, causing the actuator 400 to drive the truss 200 to rotate above the heavy object via the second shaft 300b. Then, the controller 700 controls the actuator 400 and the electromagnetic de-energizer 500 to de-energize, causing the electromagnetic de-energizer 500 to clamp the first shaft 300a, thus fixing the position of the truss 200. Finally, the lifting mechanism 600 is controlled to lift the heavy object. When using this lifting device to move heavy objects after they have been lifted, firstly, the actuator 400 is controlled, causing the actuator 400 to drive the truss 200 to rotate above the destination via the second shaft 300b. Then, the controller 700 controls the braking mechanism and the electromagnetic de-energizer 500 to de-energize, causing the electromagnetic de-energizer 500 to clamp the first shaft 300a, thus fixing the position of the truss 200. Finally, the lifting device is controlled to lower the heavy object.
[0030] This lifting device can be installed on the walls or structural steel columns of a factory building, enabling the handling of heavy objects in factories where it is not possible to install a bridge crane. Furthermore, the handling process can be controlled via the controller 700, achieving high handling efficiency.
[0031] Continue to refer to Figure 1 and Figure 2 In some embodiments of this application, the actuation mechanism 400 includes a motor 410 and a reduction gear assembly 420. The motor 410 is mounted on the fixture 100 and electrically connected to a controller 700. The motor 410 is connected to a power source via the controller 700, which can control the energization and de-energization of the motor 410 and control the rotation direction of the motor 410's shaft. The input end of the reduction gear assembly 420 is connected to the shaft of the motor 410, and the output end of the reduction gear assembly 420 is connected to a second shaft 300b.
[0032] When the truss 200 needs to rotate, the operator uses the controller 700 to energize the motor 410 and the electromagnetic de-energizer 500. The electromagnetic de-energizer 500 releases either the first shaft 300a or the second shaft 300b. The power output from the motor 410's shaft is transmitted to the second shaft 300b via the reduction gear 420, causing the second shaft 300b to rotate and drive the truss 200 to rotate. When the truss 200 reaches above the load or the destination, the operator uses the controller 700 to de-energize the motor 410 and the electromagnetic de-energizer 500. The motor 410's shaft stops rotating, and the electromagnetic de-energizer 500 engages either the first shaft 300a or the second shaft 300b, stopping the truss 200's rotation and maintaining its fixed position.
[0033] Specifically, the reduction assembly 420 includes a first gear 421 and a second gear 422. The first gear 421 is mounted on the shaft of the motor 410; the second gear 422 is mounted on the second shaft 300b and meshes with the first gear 421; wherein the number of teeth of the first gear 421 is less than the number of teeth of the second gear 422.
[0034] When the motor 410 is powered on, the shaft of the motor 410 drives the first gear 421 to rotate, and the second gear 422 rotates under the drive of the first gear 421. The second gear 422 drives the second shaft 300b to rotate, thus realizing the power transmission of the motor 410 to the second shaft 300b. Furthermore, the power of the motor 410 is reduced in speed through the first gear 421 and the second gear 422, causing the truss 200 to rotate slowly.
[0035] Of course, the reduction assembly 420 is not limited to the above structure and can also be in other structural forms. For example, the reduction assembly 420 includes a first pulley, a second pulley, and a belt; the first pulley is mounted on the shaft of the motor 410, the second pulley is mounted on the second shaft 300b, and the belt is wound around the first pulley and the second pulley; and the diameter of the first pulley is smaller than the diameter of the second pulley.
[0036] In some embodiments of this application, the motor 410 is a DC motor 410, and the controller 700 includes a first switch 710, a second switch 720, and a third switch 730 that are linked together, see reference. Figure 3 The first connection point 711 and the second connection point 712 of the first switch 710 are both connected to the positive terminal of the power supply, and the third connection point 713 of the first switch 710 is connected to the electromagnetic power-off brake 500; the first connection point 721 and the second connection point 722 of the second switch 720 are respectively connected to the positive and negative terminals of the power supply, the first connection point 731 and the second connection point 732 of the third switch 730 are respectively connected to the negative and positive terminals of the power supply, and the third connection points 723 of the second switch 720 and the third connection point 733 of the third switch 730 are both connected to the actuation mechanism 400.
[0037] When the controller 700 is in the first state, the third connection point 713 of the first switch 710 is connected to the first connection point 711, the third connection point 723 of the second switch 720 is connected to the first connection point 721, and the third connection point 733 of the third switch 730 is connected to the first connection point 731. At this time, the rotation direction of the shaft of the motor 410 is the first direction, and the electromagnetic power-off brake 500 is in the state of releasing the first shaft 300a or the second shaft 300b. When the controller 700 is in the second state, the third connection point 713 of the first switch 710 is connected to the second connection point 712, the third connection point 723 of the second switch 720 is connected to the second connection point 722, and the third connection point 733 of the third switch 730 is connected to the second connection point 732. At this time, the rotation direction of the shaft of the motor 410 is the second direction, which is opposite to the first direction, and the electromagnetic power-off brake 500 is in the state of releasing the first shaft 300a or the second shaft 300b. When the controller 700 is in the third state, the first switch 710, the second switch 720 and the third switch 730 are all in the off state; at this time, the shaft of the motor 410 stops rotating, and the electromagnetic de-energizer 500 clamps the first shaft 300a or the second shaft 300b.
[0038] like Figure 1 and Figure 2 As shown, the first shaft 300a is located above the truss 200, and the second shaft 300b is located below the truss 200. Since the second gear 422 is mounted on the second shaft 300b, and the first gear 421 meshes with the second gear 421, the first gear 421 and the second gear 422 are also located below the truss 200. This lower mounting position of the first gear 421 and the second gear 422 makes it easier for workers to apply grease to the first gear 421 and the second gear 422.
[0039] Reference Figure 1 and Figure 2 In some embodiments of this application, the lifting device further includes a track 800 disposed on the bottom surface of the truss 200; the lifting mechanism 600 includes an electric hoist that is slidably mounted on the track 800.
[0040] When truss 200 rotates to a position above the load, ready to lift it, the operator first slides the electric hoist along track 800 until it is directly above the load. Then, the operator lowers the hoist's hook and attaches it to the load. Finally, the operator raises the hook to lift the load. When truss 200 rotates to its destination, ready to lower the load, the operator first slides the electric hoist along track 800 until it is directly above the destination. Then, the operator lowers the hook until the load reaches the ground. Finally, the operator detaches the hook from the load and raises it.
[0041] Furthermore, continue to refer to Figure 1 and Figure 2 The lifting device also includes a first baffle 900a and a second baffle 900b. The first baffle 900a is connected to one end of the track 800, and the second baffle 900b is connected to the end of the track 800 away from the first baffle 900a. Both the first baffle 900a and the second baffle 900b are used to block the lifting device and prevent it from sliding off the end of the track 800.
[0042] Of course, the lifting mechanism 600 is not limited to an electric hoist and can also have other structures. For example, the lifting mechanism 600 can be a manual hoist connected to the truss 200.
[0043] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.
[0044] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.
Claims
1. A lifting device, characterized in that, include: Fasteners; truss; A first shaft, one end of which is connected to the end of the truss, and the first shaft is rotatably connected to the fixing member; A second shaft, one end of which is connected to the end of the truss, and the second shaft is rotatably connected to the fixing member; An actuation mechanism is mounted on the fixing member and is connected to the second shaft for transmission, and is configured to drive the second shaft to rotate; An electromagnetic power failure brake is mounted on the fixing member and connected to the first shaft or the second shaft, and the electromagnetic power failure brake is configured to grip the first shaft or the second shaft when power is lost. A lifting mechanism, which is connected to the truss; as well as A controller is provided, through which the actuation mechanism and the electromagnetic power-off brake are connected to a power source; the controller is configured to control the energization and de-energization of the actuation mechanism and the electromagnetic power-off brake, as well as the rotation direction of the output end of the actuation mechanism; The axis of the first shaft coincides with the axis of the second shaft, and both the axis of the first shaft and the axis of the second shaft are vertically arranged.
2. The lifting device according to claim 1, characterized in that, The actuation mechanism includes: An electric motor is mounted on the fixture and is electrically connected to the controller. A speed reduction assembly, wherein the input end of the speed reduction assembly is connected to the rotating shaft of the motor, and the output end of the speed reduction assembly is connected to the second shaft.
3. The lifting device according to claim 2, characterized in that, The deceleration component includes: A first gear is mounted on the shaft of the motor; The second gear is mounted on the second shaft and meshes with the first gear; The number of teeth on the first gear is less than the number of teeth on the second gear.
4. The lifting device according to claim 2 or 3, characterized in that, The motor is a DC motor; The controller includes a first switch, a second switch, and a third switch that are linked together. The first connection point and the second connection point of the first switch are both connected to the positive terminal of the power supply, and the third connection point of the first switch is connected to the electromagnetic power-off brake. The first connection point and the second connection point of the second switch are respectively connected to the positive and negative terminals of the power supply, the first connection point and the second connection point of the third switch are respectively connected to the negative and positive terminals of the power supply, and the third connection point of both the second switch and the third switch are connected to the actuation mechanism. When the controller is in the first state, the third connection point of the first switch is connected to the first connection point, the third connection point of the second switch is connected to the first connection point, and the third connection point of the third switch is connected to the first connection point; when the controller is in the second state, the third connection point of the first switch is connected to the second connection point, the third connection point of the second switch is connected to the second connection point, and the third connection point of the third switch is connected to the second connection point; when the controller is in the third state, the first switch, the second switch, and the third switch are all in the off state.
5. The lifting device according to claim 1, characterized in that, Also includes: A track, which is disposed on the bottom surface of the truss; The lifting mechanism includes an electric hoist, which is slidably mounted on the track.
6. The lifting device according to claim 5, characterized in that, Also includes: A first baffle is connected to one end of the track; A second baffle is connected to the end of the track away from the first baffle.
7. The lifting device according to claim 3, characterized in that, The first axis is located above the truss, and the second axis is located below the truss.