Electric capstan capable of being hung for use

Abstract

The invention provides an electric capstan capable of being used in a hanging mode, the electric capstan comprises an electric motor (1), a winch drum (2) and a gear speed reduction structure (7) which are coaxially arranged in sequence, a first vertical supporting plate (15) and a second vertical supporting plate (16) rotatably support the winch drum (2), a rotating shaft (39) of the electric motor (1) is connected with an electromagnetic brake structure (6), and the rotating shaft (39) is used for driving the gear speed reduction structure (7) to rotate at the same time. The transmission shaft (17) and the winding drum (2) are coaxially sleeved; the first upward extension part (15.1) and the second upward extension part (16.1) are oppositely inclined and close to each other to form an inverted V shape, and the tail ends of the first upward extension part (15.1) and the second upward extension part (16.1) are connected with a hook (5); the gear speed reduction structure (7) and the electromagnetic brake structure (6) serve as components of a brake scheme at the same time; according to the electric capstan, the load capacity is improved, and the safety is high.

Description

Technical Field

[0001] The invention relates to the technical field of winches, in particular to an electric winch that can be used for hanging. Background Art

[0002] The electric winch that can be used for hanging has the characteristics of hanging use. The heavy objects can be lifted by rotating the winch drum or the rope drum. However, after the heavy object is lifted, the weight of the heavy object is completely applied to the winch drum by the traction rope. Once the winch drum is reversed, there is a possibility that the heavy object will fall, resulting in a safety hazard.

[0003] The current electric winches that can be used for hanging mainly adopt a parallel solution, that is, the motor shaft and the hoisting drum are arranged in parallel up and down. For example, the authorization announcement number CN209721438U is an electric hoist with a double brake structure. Its specification paragraph 0019 records that "the rotation of the long shaft 8 drives the rotation of the guide sprocket 9, thereby enabling the chain 11 suspended on the guide sprocket 9 to achieve lifting and sliding. The lifting and lowering of the chain 11 realizes the lifting and lowering of the heavy object hoisted on the hook. When the heavy object is hoisted to the specified height, the first brake 4 and the second brake 6 brake at the same time so that the braking action of the first brake 4 reduces the speed of the left output end of the dual-speed motor 13 until it stops, and the braking action of the second brake 5 reduces the speed of the gear shaft 6 until it stops. The electric hoist 100 is driven by the electric hoist 200, and the electric hoist 100 is driven by the electric hoist 200. The electric hoist 100 is driven by the electric hoist 200, and the electric hoist 100 is driven by the electric hoist 200. The electric hoist 100 is driven by the electric hoist 200, and the electric hoist 100 is driven by the electric hoist 200. The electric hoist 100 is driven by the electric hoist 200, and the electric hoist 100 is driven by the electric hoist 200. The electric hoist 100 is driven by the electric hoist 200, and the electric hoist 100 is driven by the electric hoist 200. The electric hoist 100 is driven by the electric hoist 200, and the electric hoist 100 is driven by the electric hoist 200. The electric hoist 100 is driven by the electric hoist 200, and the electric hoist 100 is driven by the electric hoist 200.

[0004] Although some solutions have proposed the idea of ​​unifying the axis, for example, a multifunctional electric winch that can be used as an electric hoist with the publication number CN115490174A mainly relies on two-stage deceleration and reverse mechanical braking. Specifically, please refer to paragraph 0023 of its specification, which states that "when the power is cut off and the work stops, the weight drives the movable gear ring 23 through the wire rope 17, and the movable gear ring 23 drives the planetary gear 24 to rotate. At this time, due to the different number of teeth of the outer gear ring 22 and the movable gear ring 23, the planetary gear 24 cannot rotate around the outer gear ring 22, and a one-way interlocking is generated to realize the differential reverse mechanical Braking", in addition, the aforementioned patent application scheme needs to detachably install a hook assembly 35 when it is converted into a hanging use state. Specifically, please refer to paragraph 0021 of its specification which records "a detachable hook assembly 35 is fixed on the frame 9, and the hook assembly 35 is located in the lead-out direction of the electric winch wire rope. The hook assembly 35 consists of a hook 39 and a protective hook 40, and the hook 39 and the protective hook 40 are correspondingly hinged on the connecting rod". The hook assembly 35 mainly realizes the disassembly and assembly functions and the hanging functions, and is not designed for how to increase the load capacity under the hanging situation.

[0005] Therefore, the applicant will conduct further research and propose an electric winch that can be used for hanging, which is beneficial to improving the load capacity and has higher safety. Summary of the invention

[0006] The embodiment of the present invention provides an electric winch that can be used for hanging, which is beneficial to improving the load capacity and has higher safety.

[0007] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0008] An electric winch that can be used for hanging includes an electric motor, a hoisting drum and a gear reduction structure that are coaxially arranged in sequence. The electric motor drives the hoisting drum to rotate through the gear reduction structure. A traction rope connected to a hook is wound on the hoisting drum. A first vertical support plate is provided between the electric motor and the hoisting drum. A second vertical support plate is provided between the hoisting drum and the gear reduction structure. The first vertical support plate and the second vertical support plate rotatably support the hoisting drum and are connected to a plurality of connecting columns. An end of the rotating shaft of the electric motor away from the hoisting drum is connected to an electromagnetic brake structure. The other end of the rotating shaft is connected to the gear reduction structure through a transmission shaft. The transmission shaft is coaxially sleeved with the hoisting drum. The output end of the gear reduction structure is connected to the hoisting drum.

[0009] A first upward extension portion is provided at the upper end of the first vertical support plate, and a second upward extension portion is provided at the upper end of the second vertical support plate. The first upward extension portion and the second upward extension portion are inclined toward each other and close to each other in an inverted V shape, and a hook is connected at the end;

[0010] The electromagnetic brake structure includes an electromagnetic coil, a static disc, a dynamic disc, and a base which are sequentially arranged along the axial direction. One end of the electric motor is connected to the base to fix the electromagnetic brake structure on one end of the electric motor. The dynamic disc is limited between the static disc and the base. One end of the rotating shaft passes through the base and is connected to the dynamic disc. The static disc is provided with an elastic member, which is used to press the static disc against the dynamic disc to brake the dynamic disc. One end of the electromagnetic coil is electrically connected to the positive pole of the electric motor, and the other end of the electromagnetic coil is electrically connected to the negative pole of the electric motor. When the electric motor is powered on, the electromagnetic coil is powered on at the same time to make the static disc release the dynamic disc. When the electric motor is powered off, the electromagnetic coil is powered off at the same time, and the elastic member presses the static disc against the dynamic disc again to brake the dynamic disc.

[0011] The gear reduction structure and the electromagnetic brake structure are both components of the braking solution. When the electric motor is powered off and traction is stopped, the gear reduction structure uses the reduction ratio to provide deceleration resistance, and the electromagnetic coil is powered off at the same time to allow the elastic member to press the static plate against the dynamic plate again to brake the dynamic plate.

[0012] In some embodiments, a rope guide frame is further included, a first mounting portion is provided at the lower end of the first vertical support plate, a second mounting portion is provided at the lower end of the second vertical support plate, and the rope guide frame is connected to the first mounting portion and the second mounting portion respectively.

[0013] In some embodiments, the first mounting portion is bent outward to form a first mounting surface, the second mounting portion is bent outward to form a second mounting surface, and the top surface of the rope guide frame is connected to the first mounting surface and the second mounting surface respectively.

[0014] In some embodiments, the first vertical support plate and the second vertical support plate are both made of a single plate that is bent to form corresponding parts: the corresponding first vertical support plate is a single plate that is bent to form a first upward extending portion and a first mounting portion, and the portion between the first upward extending portion and the first mounting portion rotationally supports one end of the hoisting cylinder; the corresponding second vertical support plate is a single plate that is bent to form a second upward extending portion and a second mounting portion, and the portion between the second upward extending portion and the second mounting portion rotationally supports the other end of the hoisting cylinder.

[0015] In some embodiments, the gear reduction structure adopts a planetary gear reduction structure, and when the electric motor is powered off and stops traction, the planetary gear reduction structure provides self-locking.

[0016] In some embodiments, the electromagnetic brake structure includes a coil seat, which is provided with an annular groove, in which the electromagnetic coil is installed, and connecting rods are provided between the coil seat and the base. Each connecting rod passes through the stator plate and is connected between the coil seat and the base. The connecting rods also serve as guide rods for the movement of the stator plate. An elastic member is provided between the stator plate and the coil seat.

[0017] In some embodiments, an end cap is provided at one end of the electric motor, and the end cap is connected to the base.

[0018] In some embodiments, the end is configured as two vertical connection parts arranged vertically in parallel, namely the first vertical connection part and the second vertical connection part. The first vertical connection part and the second vertical connection part are respectively provided with pin holes, and the hook passes through the pin shaft into the pin hole to connect the first vertical connection part and the second vertical connection part.

[0019] In some embodiments, the portion of the first vertical support plate that rotatably supports the hoisting drum, the first vertical connection portion, the second vertical connection portion, and the portion of the second vertical support plate that rotatably supports the hoisting drum are arranged parallel to each other.

[0020] In some embodiments, a cover is also included, which is respectively provided with an upper outlet for the end connection hook and a lower outlet for the traction rope to enter and exit. The electric winch is connected to an external cable to power the electric winch and / or the cover is provided with a battery to power it.

[0021] The present disclosure provides an electric winch that can be used for hanging. On the one hand, in terms of mechanical structure, it is optimized for improving load capacity, that is, a first upward extension portion is provided at the upper end of the first vertical support plate, and a second upward extension portion is provided at the upper end of the second vertical support plate. The first upward extension portion and the second upward extension portion are inclined toward each other and close to each other in an inverted V shape, and a hook is connected at the end, so that the force distribution is more reasonable, which is conducive to bearing a larger load, thereby providing mechanical safety redundancy. On the other hand, the present disclosure not only optimizes the mechanical structure, but also ensures that the hoisting drum is not easy to reverse and drop the hoisted objects through a technical solution, that is, the braking solution consists of two parts, which are coaxially arranged and are respectively located at both ends of the electric winch. Specifically, the electromagnetic brake structure and the gear reduction structure are respectively located on both sides of the hoisting drum. The gear reduction structure and the electromagnetic brake structure are also components of the braking solution. When the electric motor is powered off and the traction is stopped, the gear reduction structure uses the reduction ratio to provide a deceleration resistance, and the electromagnetic coil is powered off at the same time to allow the elastic member to press the static disk against the moving disk again to brake the moving disk. In this way, the gear reduction structure and the electromagnetic brake structure are used together as a braking solution and are located on the same axial direction. This optimizes the force and can better cope with large load situations. That is, the solution disclosed in the present invention is conducive to achieving large loads and is therefore conducive to improving load capacity.

[0022] In addition, the electromagnetic coil only needs to be powered on and off, and does not require complex circuits such as control chips to operate, and the power on and off of the electromagnetic coil is synchronized with the electric motor, which is also conducive to improving reliability and ease of use, while also having lower costs.

[0023] The working process can be referred to as follows: when the power is off, the gear reduction structure will quickly stop the winch drum due to the deceleration resistance. At the same time, the static plate also moves quickly toward the dynamic plate due to the elastic member. In this way, the gear reduction structure and the electromagnetic brake structure work together to finally brake the winch. Although the load borne by the winch drum still acts on the gear reduction structure at this time, it is not enough to pull. When the power is restored, the electric motor will pull the winch drum again. Moreover, regardless of whether the electric motor rotates forward or reverse, the braking scheme has no requirements on the rotation direction of the electric motor. The braking reliability is high and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of an electric winch that can be used for hanging.

[0025] Figure 2 The present invention is a schematic diagram of the electrical connection wiring of an electric winch that can be used for hanging (when the cover is separated).

[0026] Figure 3 The present invention is a three-dimensional schematic diagram of an electric winch that can be used for hanging after the cover is removed.

[0027] Figure 4 It is a three-dimensional schematic diagram of a support structure consisting of a first vertical support plate and a second vertical support plate.

[0028] Figure 5 The present invention is a top view of an electric winch that can be used for hanging after the cover is removed.

[0029] Figure 6 It is the AA section view.

[0030] Figure 7 The utility model is a three-dimensional schematic diagram of an electric winch which can be used for hanging after the cover shell is dismantled and the coil seat is removed.

[0031] Description of the accompanying drawings: 1-electric motor, 2-hoisting drum, 3-traction rope, 4-hook, 5-hook, 6-electromagnetic brake structure, 7-gear reduction structure, 8-electromagnetic coil, 9-static plate, 10-moving plate, 11-base, 12-elastic member, 13-positive electrode, 14-negative electrode, 15-first vertical support plate, 15.1-first upward extension part, 15.2-first vertical connection part, 15.3-first installation part, 16-second vertical support plate, 16.1-second upward extension part, 16.2-second vertical connection part, 16.3-second mounting part, 17-transmission shaft, 18-guide rope frame, 19-coil seat, 20-annular groove, 21-connecting rod, 22-end cover, 23-pin shaft, 24-cover, 25-upper outlet, 26-battery, 27-spline sleeve, 28-wire control connector, 29-connecting cable, 30-controller, 31-relay, 32-receiver, 33-connecting seat, 34-clutch handle, 35-matching hole, 36-connecting column, 37-weight reduction hole, 38-lower outlet, 39-rotating shaft, 40-output end, 41-hole. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0033] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0034] Traditional electric winches are generally installed on vehicles for use. A solid base is provided on the vehicle to fix the electric winch. Although it can only move with the vehicle, it can achieve a larger load capacity. Although the traditional electric winch that can be hung is easy to move, it is generally used in light load scenarios. The present disclosure is optimized for load capacity and has better safety, so that the present disclosure has the advantages of the first two electric winches, thereby expanding the application scenarios to the case of using on vehicles with larger loads. In short, the use of the present disclosure is more flexible and less limited, so it is suitable for more application scenarios.

[0035] like Figures 1 to 7 As shown, the embodiment of the present disclosure provides an electric winch that can be used for hanging. In this example, the electric winch that can be used for hanging can be controlled by wire control or remote control. Specifically, it includes a receiver 32, a wire control connector 28, a connecting cable 29, and a controller 30. The wire control connector 28 is electrically connected to the receiver 32, and the connecting cable 29 is between the wire control connector 28 and the controller 30. The connecting cable 29 can be plugged and electrically connected to the controller 30 and the wire control connector 28, so as to form a wired signal transmission. The controller 30 is used for the user to operate and send a signal. After the signal is received by the receiver 32, the receiver 32 controls the relay 31 to turn on, so that the electric motor 1 is powered on and rotated. If the relay 31 is connected to different terminals, the electric motor 1 rotates in different directions, that is, the two directions of forward and reverse rotation are realized. For the remote control solution, the receiver 32 can be provided with a receiving antenna and a signal receiving circuit, and the controller 30 is provided with a sending antenna and a signal sending circuit. The controller 30 is used for the user to operate and send a wireless signal. After receiving the wireless signal, the receiver 32 controls the relay 31 to turn on, so that the electric motor 1 is powered on and rotated. For the switch between wired control and remote control, a switch button can be set on the controller 30. Of course, other solutions are also possible. For example, when the controller 30 is electrically connected to the connecting cable 29, it automatically switches to wired control. Such a switching design is conventional and will not be described in detail here. The technical solution of wire control or remote control can adopt existing technology.

[0036] like Figure 1 , 2 As shown, the electric winch that can be used for hanging includes a cover 24, so that the internal structure is protected by the cover 24. The cover 24 is formed by splicing two upper and lower shells, and the cover 24 is respectively provided with an upper outlet 25 for connecting the end hook 5 and a lower outlet 38 for the traction rope 3 to enter and exit. The electric winch is connected to an external cable to power the electric winch and / or the cover 24 is provided with a battery 26 for powering the electric winch, and the battery 26 is, for example, a rechargeable lithium battery 26, and the external cable can be connected to a vehicle battery for power supply.

[0037] The hook 4 is used to be fixed as a supporting point of the winch, and the traction rope 3 is connected with a hook 5, which is used to connect the towed object. Therefore, under the support of the supporting point, the electric motor 1 is started, and the hook 5 moves the towed object to one side of the supporting point.

[0038] The electric winch disclosed in the present invention can be placed vertically for use, that is, used as a common electric winch, and can also be placed horizontally for use.

[0039] like Figure 3 , 56 shows an electric winch that can be used for hanging after the cover 24 is removed, including an electric motor 1, a hoisting drum 2 and a gear reduction structure 7 that are coaxially arranged in sequence. The electric motor 1 drives the hoisting drum 2 to rotate through the gear reduction structure 7. A traction rope 3 connected to a hook 4 is wound on the hoisting drum 2. A first vertical support plate 15 is provided between the electric motor 1 and the hoisting drum 2. A second vertical support plate 16 is provided between the hoisting drum 2 and the gear reduction structure 7. The first vertical support plate 15 and the second vertical support plate 16 rotatably support the hoisting drum 2 and are connected to a plurality of connecting columns. 36. The electric motor 1 is mounted on the first vertical support plate 15, and the gear reduction structure 7 is mounted on the second vertical support plate 16. The end of the rotating shaft 39 of the electric motor 1 away from the hoisting drum 2 is connected to the electromagnetic brake structure 6. The other end of the rotating shaft 39 is connected to the gear reduction structure 7 via a transmission shaft 17. The transmission shaft 17 is coaxially sleeved with the hoisting drum 2. The output end 40 of the gear reduction structure 7 is connected to the hoisting drum 2. In this example, the output end 40 of the gear reduction structure 7 is connected to the hoisting drum 2 via a spline transmission, so that it can withstand a larger load.

[0040] The first vertical support plate 15 and the second vertical support plate 16 rotatably support the hoisting drum 2. For example, bearings are respectively provided on the first vertical support plate 15 and the second vertical support plate 16, and the hoisting drum 2 is rotatably connected with the first vertical support plate 15 and the second vertical support plate 16 by fitting with the bearing sleeves.

[0041] like Figure 3 , 4 As shown, the upper end of the first vertical support plate 15 is provided with a first upward extension portion 15.1, and the upper end of the second vertical support plate 16 is provided with a second upward extension portion 16.1. The first upward extension portion 15.1 and the second upward extension portion 16.1 are inclined toward each other and close to each other in an inverted V shape, and are connected with a hook 5 at the end.

[0042] In some embodiments, Figure 3 , 4 As shown, it also includes a rope guide frame 18. The lower end of the first vertical support plate 15 is provided with a first mounting portion 15.3, and the lower end of the second vertical support plate 16 is provided with a second mounting portion 16.3. The rope guide frame 18 is connected to the first mounting portion 15.3 and the second mounting portion 16.3 respectively.

[0043] In some embodiments, Figure 3 , 4 As shown, the first mounting portion 15.3 is bent outward to form a first mounting surface, the second mounting portion 16.3 is bent outward to form a second mounting surface, and the top surface of the rope guide frame 18 is connected to the first mounting surface and the second mounting surface respectively. With this design, on the one hand, it is convenient to connect the rope guide frame 18, and on the other hand, the bending outward is conducive to avoiding compression of the inlet and outlet width of the traction rope 3, and it is also conducive to a wider axial rope winding area of ​​the winch drum 2.

[0044] In some embodiments, Figure 3 , 4 As shown, the first vertical support plate 15 and the second vertical support plate 16 are both formed by bending a plate to form corresponding parts, for example, a metal plate is bent: the corresponding first vertical support plate 15 is a plate bent to form a first upward extending portion 15.1 and a first mounting portion 15.3, and the portion between the first upward extending portion 15.1 and the first mounting portion 15.3 rotatably supports one end of the hoisting drum 2; the corresponding second vertical support plate 16 is a plate bent to form a second upward extending portion 16.1 and a second mounting portion 16.3, and the portion between the second upward extending portion 16.1 and the second mounting portion 16.3 rotatably supports the other end of the hoisting drum 2.

[0045] In order to optimize the force, it is beneficial to bear large loads, such as Figure 3 , 4 As shown, the end is configured as two vertical connection parts arranged vertically in parallel, namely the first vertical connection part 15.2 and the second vertical connection part 16.2. The first vertical connection part 15.2 and the second vertical connection part 16.2 are respectively provided with pin holes, and the hook 4 passes through the pin shaft 23 to connect the first vertical connection part 15.2 and the second vertical connection part 16.2.

[0046] In order to allow the hook 4 to have a free movement margin, so as to facilitate the adjustment of the hook 4, the hook 4 is provided with a connecting seat 33, and the hook 4 can rotate circumferentially relative to the connecting seat 33. A connecting portion is provided at the lower part of the connecting seat 33, and the hook 4 passes through the connecting portion and enters the pin 23 to connect the first vertical connecting part 15.2 and the second vertical connecting part 16.2. The hook 4 together with the connecting seat 33 can swing around the pin 23. Similarly, in order to allow the hook 5 to have a free movement margin, so as to facilitate the adjustment of the hook 5, in the present disclosure, the hook 5 is also provided with a connecting seat 33.

[0047] In order to optimize the force, it is beneficial to bear large loads, such as Figure 3 , 4 As shown, the portion of the first vertical support plate 15 that rotatably supports the hoisting drum 2, the first vertical connection portion 15.2, the second vertical connection portion 16.2, and the portion of the second vertical support plate 16 that rotatably supports the hoisting drum 2 are arranged parallel to each other.

[0048] like Figure 6 , 7As shown, the electromagnetic brake structure 6 includes an electromagnetic coil 8, a static disc 9, a dynamic disc 10, and a base 11 which are arranged in sequence along the axial direction. One end of the electric motor 1 is connected to the base 11 to fix the electromagnetic brake structure 6 on one end of the electric motor 1. The dynamic disc 10 is restricted between the static disc 9 and the base 11. One end of the rotating shaft 39 passes through the base 11 and is connected to the dynamic disc 10. The static disc 9 is provided with an elastic member 12, which is used to press the static disc 9 against the dynamic disc 10 to brake the dynamic disc 10. One end of the electromagnetic coil 8 is electrically connected to the positive pole 13 of the electric motor 1, and the other end of the electromagnetic coil 8 is electrically connected to the negative pole 14 of the electric motor 1. When the electric motor 1 is energized, the electromagnetic coil 8 is energized at the same time to make the static disc 9 release the dynamic disc 10, that is, the static disc 9 is attracted by the electromagnetic coil 8 and moves to the side away from the dynamic disc 10, thereby releasing the dynamic disc 10. The preferred solution is to make the static disc 9 farther away, so that the static disc 9 and the dynamic disc 10 will be completely separated. When the electric motor 1 is powered off, the electromagnetic coil 8 is also powered off, and the elastic member 12 presses the static plate 9 against the dynamic plate 10 again to brake the dynamic plate 10. Figure 2 As shown, since both ends of the electromagnetic coil 8 are led out from a hole 41, the hole 41 is used to realize "one end of the electromagnetic coil 8 is electrically connected to the positive pole 13 of the electric motor 1, and the other end of the electromagnetic coil 8 is electrically connected to the negative pole 14 of the electric motor 1".

[0049] The forward and reverse rotation of the electric motor 1 is based on the switching of the positive and negative poles 14 by the relay 31 when power is supplied, and the forward and reverse rotation technology of the electric motor 1 is known. However, no matter whether the electric motor 1 rotates forward or reverse, the electromagnetic coil 8 is energized to generate electromagnetic attraction on the stator 9.

[0050] like Figure 6 As shown, the electromagnetic brake structure 6 includes an electromagnetic coil 8, a static disc 9, a dynamic disc 10, and a base 11 which are arranged in sequence along the axial direction. The dynamic disc 10 is confined between the static disc 9 and the base 11. One end of the rotating shaft 39 passes through the base 11 and is connected to the dynamic disc 10. The dynamic disc 10 is provided with a splined internal gear ring. A spline sleeve 27 is sleeved on one end of the rotating shaft 39. One end of the rotating shaft 39 is sleeved and connected to the dynamic disc 10 through the spline sleeve 27. When the electric motor 1 is powered on, the dynamic disc 10 rotates together with the rotating shaft 39. When the electric motor 1 is powered off, the dynamic disc 10 brakes the rotating shaft 39. Since the transmission shaft 17 is connected to the rotating shaft 39, the transmission shaft 17 is also braked and fixed. Since the gear reduction structure 7 bears a certain force, the load on the winch drum 2 that is circumferentially transmitted to the transmission shaft 17 through the gear reduction structure 7 has been weakened. Then, when the transmission shaft 17 is braked and fixed, the winch drum 2 is also reliably fixed.

[0051] In some embodiments, when the elastic member 12 presses the static plate 9 against the dynamic plate 10 again to brake the dynamic plate 10, the base 11 is also used to support the dynamic plate 10, that is, the static plate 9 and the base 11 clamp the dynamic plate 10 together, so that the rotating shaft 39 does not need to bear the axial force, which is beneficial to protecting the electric motor 1 and the gear reduction structure 7.

[0052] In some embodiments, Figure 6 As shown, the electromagnetic brake structure 6 includes a coil seat 19, and the coil seat 19 is provided with an annular groove 20, and the electromagnetic coil 8 is installed in the annular groove 20. A connecting rod 21 is provided between the coil seat 19 and the base 11. Each connecting rod 21 passes through the stator 9 and is connected between the coil seat 19 and the base 11. The connecting rod 21 also serves as a guide rod for the movement of the stator 9. An elastic member 12 is provided between the stator 9 and the coil seat 19, and the elastic member 12 is a spring. With this design, the structural reliability is higher. In addition, the provision of the annular groove 20 is conducive to the installation of the electromagnetic coil 8 on the one hand, and on the other hand, Figure 4 As shown, the annular groove 20 is opened toward one side of the static disk 9, and the annular groove 20 can be used to focus the magnetic lines of force, so that the electromagnetic attraction of the electromagnetic coil 8 to the static disk 9 is better and more directional.

[0053] In order to facilitate production, Figure 5 , 6 As shown, an end cover 22 is provided at one end of the electric motor 1 , and the end cover 22 is connected to the base 11 .

[0054] In some embodiments, Figure 6 As shown, the gear reduction structure 7 adopts a planetary gear reduction structure 7. When the electric motor 1 is powered off and stops traction, the planetary gear reduction structure 7 provides self-locking. On the one hand, the planetary gear reduction structure 7 has better coaxiality, and on the other hand, the self-locking property can be used together with the electromagnetic brake structure 6 to improve the load capacity and safety.

[0055] The clutch scheme of the gear reduction structure 7 can adopt the existing technology, and a clutch handle 34 is generally provided to realize manual operation of the clutch.

[0056] In this disclosure, Figure 6 As shown, the gear reduction structure 7 and the electromagnetic brake structure 6 are both components of the braking solution. When the electric motor 1 is powered off and stops traction, the gear reduction structure 7 uses the reduction ratio to provide deceleration resistance, and the electromagnetic coil 8 is powered off at the same time to allow the elastic member 12 to press the static plate 9 against the dynamic plate 10 again to brake the dynamic plate 10.

[0057] In some embodiments, Figure 1 , 2As shown, for a more beautiful appearance and / or to protect the structure, a cover shell 24 can be added. In order to operate the clutch handle 34, the cover shell 24 is provided with a matching hole 35 for the clutch handle 34 to be exposed.

[0058] In some embodiments, Figure 3 , 4 As shown, under the premise of ensuring the strength design requirements, the first upward extending portion 15.1 and the second upward extending portion 16.1 can be further optimized, that is, weight-reducing holes 37 are provided to reduce the weight.

[0059] When understanding the present invention, if necessary, the above structure can refer to other embodiments / appendices. Figure 1 And understand, no further elaboration here.

[0060] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be thought of by any person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An electric winch that can be used for hanging, comprising an electric motor (1), a hoisting drum (2) and a gear reduction structure (7) that are coaxially arranged in sequence, the electric motor (1) drives the hoisting drum (2) to rotate through the gear reduction structure (7), a traction rope (3) connected to a hook (4) is wound on the hoisting drum (2), a first vertical support plate (15) is provided between the electric motor (1) and the hoisting drum (2), a second vertical support plate (16) is provided between the hoisting drum (2) and the gear reduction structure (7), the first vertical support plate (15) and the second vertical support plate (16) rotatably support the hoisting drum (2) and are connected to a plurality of connecting columns (36), characterized in that: An end of the rotating shaft (39) of the electric motor (1) away from the hoist drum (2) is connected to an electromagnetic brake structure (6); the other end of the rotating shaft (39) is connected to a gear reduction structure (7) via a transmission shaft (17); the transmission shaft (17) and the hoist drum (2) are coaxially sleeved; and an output end (40) of the gear reduction structure (7) is connected to the hoist drum (2); A first upward extending portion (15.1) is provided at the upper end of the first vertical support plate (15), and a second upward extending portion (16.1) is provided at the upper end of the second vertical support plate (16); the first upward extending portion (15.1) and the second upward extending portion (16.1) are arranged to be inclined towards each other and close to each other in an inverted V shape, and are connected to hooks (5) at the ends; The electromagnetic brake structure (6) comprises an electromagnetic coil (8), a static disk (9), a dynamic disk (10), and a base (11) which are arranged in sequence along the axial direction. One end of the electric motor (1) is connected to the base (11) to fix the electromagnetic brake structure (6) on one end of the electric motor (1). The dynamic disk (10) is restricted between the static disk (9) and the base (11). One end of the rotating shaft (39) passes through the base (11) and is connected to the dynamic disk (10). The static disk (9) is provided with an elastic member (12) which is used to adjust the static disk (10). 9) presses the moving disc (10) to brake the moving disc (10), one end of the electromagnetic coil (8) is electrically connected to the positive pole (13) of the electric motor (1), and the other end of the electromagnetic coil (8) is electrically connected to the negative pole (14) of the electric motor (1). When the electric motor (1) is powered on, the electromagnetic coil (8) is simultaneously powered on to make the stationary disc (9) release the moving disc (10). When the electric motor (1) is powered off, the electromagnetic coil (8) is simultaneously powered off, and the elastic member (12) presses the stationary disc (9) against the moving disc (10) again to brake the moving disc (10); The gear reduction structure (7) and the electromagnetic brake structure (6) are both components of the braking solution. When the electric motor (1) is powered off and stops traction, the gear reduction structure (7) uses the reduction ratio to provide a deceleration resistance, and the electromagnetic coil (8) is powered off at the same time so that the elastic member (12) presses the static plate (9) against the dynamic plate (10) again to brake the dynamic plate (10).

2. The electric winch that can be used for hanging according to claim 1 is characterized in that: It also includes a rope guide frame (18), a first mounting portion (15.3) is provided at the lower end of the first vertical support plate (15), a second mounting portion (16.3) is provided at the lower end of the second vertical support plate (16), and the rope guide frame (18) is connected to the first mounting portion (15.3) and the second mounting portion (16.3) respectively.

3. The electric winch that can be used for hanging according to claim 2 is characterized in that: The first mounting portion (15.3) is bent outward to form a first mounting surface, and the second mounting portion (16.3) is bent outward to form a second mounting surface. The top surface of the rope guide frame (18) is connected to the first mounting surface and the second mounting surface respectively.

4. The electric winch that can be used for hanging according to claim 2 or 3 is characterized in that: The first vertical support plate (15) and the second vertical support plate (16) are both formed by bending a plate to form corresponding parts: the first vertical support plate (15) is a plate formed by bending a first upward extension part (15.1) and a first mounting part (15.3), and the part between the first upward extension part (15.1) and the first mounting part (15.3) rotatably supports one end of the hoisting drum (2); the second vertical support plate (16) is a plate formed by bending a second upward extension part (16.1) and a second mounting part (16.3), and the part between the second upward extension part (16.1) and the second mounting part (16.3) rotatably supports the other end of the hoisting drum (2).

5. The electric winch that can be used for hanging according to claim 1 is characterized in that: The gear reduction structure (7) adopts a planetary gear reduction structure (7). When the electric motor (1) is powered off and stops traction, the planetary gear reduction structure (7) provides self-locking.

6. The electric winch that can be used for hanging according to claim 1 is characterized in that: The electromagnetic brake structure (6) comprises a coil seat (19), the coil seat (19) is provided with an annular groove (20), an electromagnetic coil (8) is installed in the annular groove (20), a connecting rod (21) is provided between the coil seat (19) and the base (11), each connecting rod (21) passes through a static disk (9) and is connected between the coil seat (19) and the base (11), the connecting rod (21) also serves as a guide rod for the movement of the static disk (9), and an elastic member (12) is provided between the static disk (9) and the coil seat (19).

7. The electric winch that can be used for hanging according to claim 1 or 6, characterized in that: An end cover (22) is provided at one end of the electric motor (1), and the end cover (22) is connected to the base (11).

8. The electric winch that can be used for hanging according to claim 1 is characterized in that: The end is provided with two vertical connection parts arranged vertically in parallel, namely a first vertical connection part (15.2) and a second vertical connection part (16.2). The first vertical connection part (15.2) and the second vertical connection part (16.2) are respectively provided with pin holes, and the hook (4) passes through the pin hole through the pin shaft (23) to connect the first vertical connection part (15.2) and the second vertical connection part (16.2).

9. The electric winch that can be used for hanging according to claim 8 is characterized in that: The portion of the first vertical support plate (15) that rotatably supports the hoist drum (2), the first vertical connection portion (15.2), the second vertical connection portion (16.2), and the portion of the second vertical support plate (16) that rotatably supports the hoist drum (2) are arranged parallel to each other.

10. The electric winch that can be used for hanging according to claim 1 is characterized in that: The invention also comprises a cover (24), wherein the cover (24) is provided with an upper outlet (25) for connecting the end hook (5) and a lower outlet (38) for the traction rope (3) to enter and exit, the electric winch is connected to an external cable to power the electric winch and / or the cover (24) is provided with a battery (26) to power it.

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