Braking device of bilateral driving mechanism of steel wire rope electric hoist

Abstract

The utility model provides a brake device of a bilateral driving mechanism of a steel wire rope electric hoist. The brake device for the bilateral driving mechanism of the steel wire rope electric hoist comprises a bottom plate; the two rotating frames are fixedly connected to the positions, close to the two sides, of the top of the bottom plate correspondingly, and a winding wheel is rotationally connected between the two rotating frames through a bearing; and the two supporting frames are fixedly connected to the positions, close to the two sides, of the top of the bottom plate correspondingly, driving assemblies are installed on the faces, opposite to each other, of the two supporting frames correspondingly, limiting gears are installed at the output ends of the driving assemblies correspondingly, and brake discs are fixedly connected to the other ends of the limiting gears correspondingly. According to the brake device of the bilateral driving mechanism of the steel wire rope electric hoist, the locking function of the winding wheel is added through the design, when the winding wheel stops hoisting a heavy object, the winding wheel is locked through the matching of the locking gear and the limiting gear, and the safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to double -sided drive electric hoist brake technical field especially relates to steel wire rope electric hoist double -sided drive mechanism brake device. BACKGROUND

[0002] Electric hoist is a kind of special hoisting equipment, is installed on headstock, gantry crane, electric hoist has small volume, light weight, simple operation, convenient to use etc., is used in industrial and mining enterprises, warehouse, wharf etc.

[0003] In order to increase the safety of double drive mechanism electric hoist, generally adopts brake device to brake and lock electric hoist, if the equipment power failure or failure can assist electric hoist safe stop to place heavy drop or equipment out of control.

[0004] And the brake device of existing double -sided electric hoist mostly is single mechanical friction brake, and the stability of friction brake is poor, and lack locking structure when electric hoist stops lifting heavy, if brake failure is prone to safety accident.

[0005] Therefore, it is necessary to provide steel wire rope electric hoist double -sided drive mechanism brake device to solve the above technical problems. SUMMARY

[0006] The utility model provides steel wire rope electric hoist double -sided drive mechanism brake device, solve the problem that single mechanical friction brake lacks locking structure when electric hoist stops lifting heavy if friction brake failure is prone to safety accident.

[0007] To solve the above technical problems, the steel wire rope electric hoist double -sided drive mechanism brake device provided by the utility model comprises a bottom plate;

[0008] Two rotating frames, two rotating frames are fixedly connected at the positions near the two sides on the top of the bottom plate, and a winding wheel is rotatably connected between the two rotating frames through a bearing;

[0009] Two support frames, two support frames are fixedly connected at the top of the bottom plate near both sides, the opposite side of two support frames is provided with a drive assembly, the output end of drive assembly is provided with a limiting gear, the other end of limiting gear is fixedly connected with a brake disc, the other end of brake disc is fixedly connected with a rotating shaft, the position near the bottom of the opposite side of two support frames is provided with a first telescopic rod, the telescopic end of first telescopic rod is provided with a locking gear, the other end of locking gear is fixedly connected with a limiting rod, the outer surface of limiting rod is slidably connected with a movable frame, the support frame and rotating frame are provided with a mounting shell, the front and back of mounting shell are fixedly connected with a second telescopic rod, the telescopic end of second telescopic rod is provided with a friction ring through a fixed ring.

[0010] The two ends of the rotating frame are connected through a shaft and a bearing, the other end of the rotating shaft is connected with the bearings at the two ends of the winding wheel, the locking gear is located below the limiting gear, the bottom of the movable frame is connected with the top of the bottom plate, and the locking gear is located below the limiting gear and is connected with the limiting gear when locking is required.

[0011] Preferably, the top of the bottom plate is provided with a protective cover, and the top of the bottom plate is provided with a mounting hole near the four corners.

[0012] The protective cover wraps the equipment on the bottom plate.

[0013] Preferably, the front of the protective cover is provided with a control box, and the front of the control box is rotatably connected with a box door.

[0014] The inside of the control box is provided with a power switch, a remote control device and a controller for controlling the operation of the device.

[0015] Preferably, the top of the bottom plate is provided with a mounting hole, and two slide rods are mounted in the mounting hole.

[0016] Preferably, the outer surfaces of the two slide rods are slidably connected with a sliding ring, and the top of the sliding ring is provided with an auxiliary ring.

[0017] The auxiliary ring is made of wear-resistant material.

[0018] Preferably, the drive assembly comprises a protective shell with ventilation holes, a servo motor is mounted in the protective shell, and a rotating rod is mounted on the output end of the servo motor through an angle sensor.

[0019] The other end of the rotating rod is connected with the limiting gear.

[0020] Compared with the related art, the steel wire rope electric hoist double-sided drive mechanism brake device has the following beneficial effects:

[0021] The utility model provides a steel wire rope electric hoist double side drive mechanism brake device, in order to increase the locking effect of double side drive electric hoist, brake disc and limit gear are installed through the pivot between drive assembly and winding wheel, then locking gear is installed between movable frame and support frame through first telescopic link and limit rod, can lock when winding wheel stops working through locking gear and limit gear butt joint, and friction ring can contact brake disc through the promotion of second telescopic link, can contact brake disc through friction ring when winding wheel needs to stop, makes winding wheel deceleration until stop, increase the locking function of winding wheel through the design, when winding wheel hoist heavy object stops, through locking gear and limit gear cooperate and lock winding wheel, increase safety. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The structure schematic diagram of a preferred embodiment of the steel wire rope electric hoist double side drive mechanism brake device provided by the utility model is provided.

[0023] Figure 2 The structure schematic diagram of the slide bar provided by the utility model is provided.

[0024] Figure 3 The structure schematic diagram of the servo motor provided by the utility model is provided. Figure 2 The enlarged view of A shown in the figure is provided.

[0025] Figure 4 The enlarged view of B shown in the figure is provided. Figure 2 The enlarged view of B shown in the figure is provided.

[0026] Figure 5 The structure schematic diagram of the servo motor provided by the utility model is provided.

[0027] Marked number in the figure: 1, bottom plate, 2, mounting hole, 3, support frame, 4, drive assembly, 401, protective shell, 402, air hole, 403, servo motor, 404, angle sensor, 405, rotating rod, 5, installation shell, 6, rotating frame, 7, protective cover, 8, control box, 9, box door, 10, first telescopic link, 11, slide bar, 12, winding wheel, 13, mounting, 14, friction ring, 15, second telescopic link, 16, fixed ring, 17, brake disc, 18, slip ring, 19, pivot, 20, bearing, 21, movable frame, 22, limit rod, 23, locking gear, 24, limit gear, 25, auxiliary ring. DETAILED DESCRIPTION

[0028] The utility model will be further described below in connection with the drawings and embodiment.

[0029] Please combine with the reference Figure 1 , Figure 2 , Figure 3 , Figure 4 And Figure 5,in, Figure 1 A schematic diagram of a preferred embodiment of the braking device for the dual-side drive mechanism of the wire rope electric hoist provided by this utility model; Figure 2 A schematic diagram of the slide bar is provided for this utility model; Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown; Figure 4 Provided for this utility model Figure 2 An enlarged view of point B shown; Figure 5 This utility model provides a structural schematic diagram of a servo motor. The braking device of the double-sided drive mechanism of the wire rope electric hoist includes: a base plate 1;

[0030] Two rotating frames 6 are fixedly connected to the top of the base plate 1 near both sides, and a winding wheel 12 is rotatably connected between the two rotating frames 6 through a bearing 20.

[0031] Two support frames 3 are fixedly connected to the top of the base plate 1 near both sides. A drive assembly 4 is installed on the opposite side of each support frame 3. A limit gear 24 is installed at the output end of each drive assembly 4. A brake disc 17 is fixedly connected to the other end of each limit gear 24. A rotating shaft 19 is fixedly connected to the other end of each brake disc 17. A first telescopic rod 10 is installed on the opposite side of each support frame 3 near the bottom. A locking gear 23 is installed at the telescopic end of each first telescopic rod 10. A limit rod 22 is fixedly connected to the other end of each locking gear 23. A movable frame 21 is slidably connected to the outer surface of each limit rod 22. An installation shell 5 is installed between each support frame 3 and the rotating frame 6. A second telescopic rod 15 is fixedly connected to the front and back of each installation shell 5. A friction ring 14 is installed at the telescopic end of each second telescopic rod 15 through a fixing ring 16.

[0032] The two ends of the rotating frame 6 are connected by a shaft and bearing 20. The other end of the rotating shaft 19 is connected to the bearings at both ends of the winding wheel 12. The locking gear 23 is located below the limiting gear 24. The bottom of the movable frame 21 is connected to the top of the base plate 1. The locking gear 23 is located at the limiting gear 24 and the two mesh when locking is required. The friction ring 14 corresponds to the brake disc 17. The two friction rings 14 can wrap around the brake disc 17.

[0033] A protective cover 7 is installed on the top of the base plate 1, and mounting holes 2 are provided on the top of the base plate 1 near the four corners.

[0034] The protective cover 7 encloses the equipment on the base plate 1, and the mounting holes 2 facilitate fixing the base plate 1 in the corresponding position.

[0035] A control box 8 is installed on the front of the protective cover 7, and a box door 9 is rotatably connected to the front of the control box 8.

[0036] The door 9 is equipped with a lock, and the control box 8 contains a power switch, remote control equipment, and a controller for operating the equipment.

[0037] The top of the base plate 1 is provided with an installation opening 13, and two sliding rods 11 are installed inside the installation opening 13;

[0038] The two ends of the slide rod 11 are connected to the two sides of the inner wall of the mounting port 13, respectively.

[0039] The outer surfaces of the two slide rods 11 are slidably connected to a slip ring 18, and an auxiliary ring 25 is installed on the top of the slip ring 18;

[0040] The auxiliary ring 25 is made of wear-resistant material and can assist the movement of the steel wire.

[0041] The drive assembly 4 includes a protective shell 401 with a vent 402. A servo motor 403 is installed inside the protective shell 401. A rotating rod 405 is installed at the output end of the servo motor 403 through an angle sensor 404.

[0042] The other end of the rotating rod 405 is connected to the limiting gear 24, and the vent 402 assists in heat dissipation.

[0043] The working principle of the braking device of the double-sided drive mechanism of the wire rope electric hoist provided by this utility model is as follows:

[0044] A brake disc 17 and a limiting gear 24 are mounted between the drive assembly 4 and the take-up reel 12 via a rotating shaft 19. A locking gear 23 is then mounted between the movable frame 21 and the support frame 3 via a first telescopic rod 10 and a limiting rod 22. The locking gear 23 and the limiting gear 24 engage to lock the take-up reel 12 when it stops working. The friction ring 14 contacts the brake disc 17 via a second telescopic rod 15. When the take-up reel 12 needs to stop, the friction ring 14 contacts the brake disc 17, causing the take-up reel 12 to decelerate until it stops. In actual use... When the winding reel 12 needs to be decelerated, only the two sets of second telescopic rods 15 need to be activated. The friction between the friction ring 14 and the brake disc 17 will assist the winding reel 12 in decelerating. After the winding reel 12 has come to a complete stop, the two first telescopic rods 10 will activate and engage the locking gear 23 and the limiting gear 24 to lock the winding reel 12. When it is necessary to release the restriction, simply push the locking gear 23 and the limiting gear 24 to separate to release the lock. Then the friction ring 14 and the brake disc 17 will gradually separate to release the brake and allow the winding reel 12 to resume operation.

[0045] Compared with related technologies, the braking device of the double-sided drive mechanism of the wire rope electric hoist provided by this utility model has the following beneficial effects:

[0046] To enhance the locking effect of the dual-sided drive electric hoist, a brake disc 17 and a limiting gear 24 are installed between the drive assembly 4 and the winding reel 12 via a rotating shaft 19. A locking gear 23 is then installed between the movable frame 21 and the support frame 3 via a first telescopic rod 10 and a limiting rod 22. The locking gear 23 and the limiting gear 24 engage to lock the winding reel 12 when it stops working. Meanwhile, the friction ring 14 contacts the brake disc 17 via the push of the second telescopic rod 15. When the winding reel 12 needs to stop, the friction ring 14 contacts the brake disc 17, causing the winding reel 12 to decelerate until it stops. This design enhances the locking function of the winding reel 12. When the winding reel 12 stops carrying a heavy load, the locking gear 23 and the limiting gear 24 work together to lock the winding reel 12, increasing safety.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A braking device for a double-sided drive mechanism of a wire rope electric hoist, characterized in that, include: Base plate; Two rotating frames are fixedly connected to the top of the base plate near both sides, and a winding wheel is rotatably connected between the two rotating frames via bearings; Two support frames are fixedly connected to the top of the base plate near both sides. A drive assembly is mounted on the opposite side of each support frame. A limit gear is mounted on the output end of each drive assembly, and a brake disc is fixedly connected to the other end of each limit gear. A rotating shaft is fixedly connected to the other end of each brake disc. A first telescopic rod is mounted on the opposite side of each support frame near the bottom. A locking gear is mounted on the telescopic end of each first telescopic rod, and a limit rod is fixedly connected to the other end of each locking gear. A movable frame is slidably connected to the outer surface of each limit rod. A mounting shell is installed between each support frame and the rotating frame. A second telescopic rod is fixedly connected to the front and back of each mounting shell. A friction ring is mounted on the telescopic end of each second telescopic rod via a fixing ring.

2. The braking device for the double-sided drive mechanism of the wire rope electric hoist according to claim 1, characterized in that, A protective cover is installed on the top of the base plate, and mounting holes are provided at the four corners of the top of the base plate.

3. The braking device for the double-sided drive mechanism of the wire rope electric hoist according to claim 2, characterized in that, A control box is mounted on the front of the protective cover, and a door is rotatably connected to the front of the control box.

4. The braking device for the double-sided drive mechanism of the wire rope electric hoist according to claim 1, characterized in that, The top of the base plate has an installation opening, and two sliding rods are installed inside the installation opening.

5. The braking device for the dual-side drive mechanism of the wire rope electric hoist according to claim 4, characterized in that, The outer surfaces of the two slide rods are slidably connected with slip rings, and an auxiliary ring is installed on the top of the slip rings.

6. The braking device for the double-sided drive mechanism of the wire rope electric hoist according to claim 1, characterized in that, The drive assembly includes a protective shell with vents, and a servo motor is installed inside the protective shell. The output end of the servo motor is connected to a rotating rod via an angle sensor.

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