Winch safety brake and winch

Abstract

The utility model provides a safety brake of a winch, which comprises a turntable component, a brake component, a brake component, a brake component and a brake component, and the turntable component comprises a main shaft, an outer turntable and a driving wheel, the locking device comprises a base, a deflection frame provided with a brake disc and a driving structure, the deflection frame is hinged to the base, and the deflection frame provided with the brake disc is arranged on the peripheral side of the outer rotating disc; and the outer gear ring is arranged at one end of the winch, the outer gear ring is connected with the driving wheel in a meshed mode, and when the driving structure drives the deflection frame to deflect so that the brake disc can abut against the outer wall of the outer rotating disc, the driving wheel stops rotating to generate retarding force to stop rotation of the winch. According to the utility model, the braking of the rotary disc assembly by the locking device replaces the direct braking of the winding drum structure, the reverse resistance of the outer gear ring and the driving wheel is utilized to realize the braking of the winding drum, and the technical requirements on braking equipment are reduced while the braking requirement is met, so that the cost of the equipment is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of winches, and in particular relates to a winch safety brake and a winch. Background Art

[0002] The hoisting mechanism on the crane is driven by a motor for lifting and hook dropping. In actual operation, the motor needs to rotate forward to drop the hook from a high altitude. After the hook hooks the weight, the motor reverses to perform the lifting action. During the lifting process, a braking device is required for auxiliary control. However, most of the structures in the prior art directly brake the drum body structure, and the investment cost of the braking equipment is high.

[0003] For example, the existing invention application number 202222777101.2 discloses a winch braking device for providing braking force for the drum of the winch body, the winch body is arranged on the platform of the operating machinery, and includes a bracket, a brake belt assembly and a driving device, the bracket and the driving device are both arranged on the winch body or on the platform, the brake belt assembly surrounds the outside of the drum, one end of the brake belt assembly is connected to the winch body or the platform, and the other end of the brake belt assembly is connected to the driving end of the driving device, and an elastic pulling member is arranged between the outer side of the upper semicircle of the brake belt assembly and the bracket; the driving device is used to enable the brake belt assembly to tighten or release the drum, and when the driving device drives the brake belt assembly to release the drum, the elastic pulling member drives the brake belt assembly away from the drum. In this application, the braking device still controls the braking of the reel body. If braking is required, a higher braking torque must be applied. However, due to the requirements of the braking equipment for the reel body structure, achieving a high braking torque places higher technical requirements on the brake pad performance of the braking equipment, increasing the equipment investment cost. Summary of the invention

[0004] The utility model provides a winch safety brake, aiming to solve the problem that the brake equipment is currently limited by the structure of the drum body and higher technical requirements must be put forward for the brake equipment in order to achieve a high braking torque, thereby increasing the equipment investment cost.

[0005] The utility model is implemented in this way: a winch safety brake comprises:

[0006] A turntable assembly, the turntable assembly comprising a main shaft and an outer turntable and a driving wheel arranged on the main shaft;

[0007] A locking device, wherein a brake disc is disposed on the locking device and the brake disc abuts against an outer wall of the outer rotating disc;

[0008] The outer gear ring is arranged on the winch and is meshedly connected with the driving wheel. When the brake disc abuts against the outer wall of the outer rotating disc, the driving wheel stops rotating and generates a blocking force to stop the rotation of the winch.

[0009] Preferably, the turntable assembly comprises two sets of bearing seats, and the main shaft is assembled on the bearing seats;

[0010] The driving wheel and the outer rotating disk are arranged on the main shaft between the bearing seats.

[0011] Preferably, the locking device comprises a base, a deflection frame and a driving structure;

[0012] The deflection frame comprises a first deflection frame and a second deflection frame, wherein the first deflection frame and the second deflection frame are respectively hingedly connected to the base;

[0013] The driving structure comprises a reset assembly and a pull rod assembly, both ends of the pull rod assembly are respectively connected to the first deflection frame, one end of the reset assembly is hinged to the first deflection frame, and the other end is hinged to the second deflection frame.

[0014] Preferably, the brake disc is respectively arranged on the first deflection frame and the second deflection frame, and the brake disc is driven to approach or move away from the outer rotating disc under the traction of the driving structure.

[0015] Preferably, a lifting motor is also provided on the base, and the lifting motor is hingedly connected to the pull rod assembly.

[0016] The utility model also provides a hoist adopting the hoist safety brake as described above, the hoist comprises a driving mechanism and a drum;

[0017] One end of the drum is connected to the driving mechanism, and the winch safety brake is arranged at the end of the drum away from the driving mechanism.

[0018] Preferably, a first flange and a second flange are respectively provided at both ends of the reel, the reel is connected to the power output shaft of the driving mechanism via the first flange, and the outer gear ring is arranged on the outer edge of the second flange.

[0019] Preferably, the outer gear ring is arranged in the middle section of the reel, and the outer gear ring is meshingly connected with the driving wheel.

[0020] Preferably, the main shaft rotation axis is parallel to the reel rotation axis.

[0021] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0022] 1. The winch safety brake provided by the utility model utilizes a locking device to brake the turntable assembly instead of directly braking the drum structure, and utilizes the reverse resistance of the outer gear ring and the driving wheel to brake the drum, thereby meeting the braking needs while reducing the technical requirements for the braking equipment, thereby reducing the cost of the equipment.

[0023] 2. The winch safety brake provided by the utility model meets the needs of high braking torque by increasing the friction area of ​​the outer turntable and the material of the brake disc. By adopting this structural optimization, the defect that the traditional disc structure can only use high-performance brake materials is avoided, and the cost of the brake equipment is further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model is a schematic structural diagram of a winch and a winch safety brake.

[0025] Figure 2 It is a schematic structural diagram of an outer gear ring and a turntable assembly provided by the utility model.

[0026] Figure 3 It is a structural schematic diagram of a turntable assembly and a locking device provided by the utility model.

[0027] Figure 4 It is a structural schematic diagram of the middle locking device provided by the utility model.

[0028] Figure 5 It is a schematic diagram of the structure of the turntable assembly provided by the utility model.

[0029] Figure 6 It is a schematic diagram of the top view structure of the turntable assembly provided by the utility model.

[0030] Description of reference numerals:

[0031] 100, reel; 110, first flange; 120, second flange; 200, driving mechanism;

[0032] 300, locking device; 310, base; 320, brake disc; 330, lifting motor; 341, first deflection frame; 342, second deflection frame; 350, reset assembly; 360, pull rod assembly; 361, deflection rod; 362, deflection shaft; 363, pull rod;

[0033] 400, turntable assembly; 410, outer turntable; 420, bearing seat; 430, main shaft; 440, driving wheel;

[0034] 500. External gear ring. DETAILED DESCRIPTION

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0036] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] The utility model embodiment provides a winch safety brake, such as Figure 1-Figure 6 As shown, the winch safety brake is applied to the braking process of the drum 100, including:

[0038] The turntable assembly 400 includes an outer turntable 410 , a bearing seat 420 , a main shaft 430 and a driving wheel 440 . The main shaft 430 is assembled on two sets of parallel bearing seats 420 . The driving wheel 440 and the outer turntable 410 are both arranged on the main shaft 430 .

[0039] The locking device 300 includes a base 310, a brake disc 320, a deflection frame and a driving structure. The deflection frame includes a first deflection frame 341 and a second deflection frame 342. The first deflection frame 341 and the second deflection frame 342 are respectively hingedly connected to the base 310. The brake disc 320 is respectively arranged on the first deflection frame 341 and the second deflection frame 342. The driving structure drives the first deflection frame 341 and the second deflection frame 342 to approach each other so that the brake disc 320 generates a blocking force on the outer rotating disk 410 located between the first deflection frame 341 and the second deflection frame 342, thereby achieving the purpose of limit locking.

[0040] The outer gear ring 500 is disposed at one end of the winch, and the outer gear ring 500 is meshedly connected with the driving wheel 440 .

[0041] In this embodiment, the drum 100 is a drum structure of a winch in the prior art, wherein a first flange 110 and a second flange 120 are respectively provided at both ends of the drum 100, and the second flange 120 is connected to a driving mechanism 200 of a winch in the prior art, and the driving mechanism 200 mainly generates power to drive the drum 100 to recover or release the traction rope, and the outer gear ring 500 is arranged on the peripheral side of the first flange 110. Under normal conditions, when the drum 100 rotates, the outer gear ring 500 drives the driving wheel 440 to rotate synchronously.

[0042] The present application replaces direct braking of the reel 100 structure with braking of the turntable assembly 400 by the locking device 300, and utilizes the reverse resistance of the outer gear ring 500 and the driving wheel 440 to achieve braking of the reel 100, thereby meeting the braking needs while lowering the technical requirements for the braking equipment, thereby reducing the cost of the equipment.

[0043] The base 310 is fixed on the equipment platform where the winch is arranged, and the bearing seat 420 is also fixed on the corresponding equipment platform. A lifting motor 330 is also provided on the base 310. The traction force generated by the lifting motor 330 in the vertical direction drives the driving mechanism to deflect.

[0044] The driving wheel 440 and the outer turntable 410 are arranged on the main shaft 430 between the two groups of bearing seats 420. The brake discs 320 provided on the first deflection frame 341 and the second deflection frame 342 are distributed on the circumference of the outer turntable 410. The friction force of the brake discs 320 on the outer turntable 410 is used to achieve limit locking. In the actual design process, the need for high braking torque can be met by increasing the friction area of ​​the outer turntable 410 and the material of the brake discs 320. By adopting this structural optimization, the defect that the traditional disc structure can only use high-performance braking materials is avoided, thereby reducing the cost of the braking equipment.

[0045] As a preferred implementation in this embodiment, the driving structure includes a reset assembly 350 and a pull rod assembly 360. Both ends of the reset assembly 350 and the pull rod assembly 360 are connected to the first deflection frame 341 and the second deflection frame 342 respectively.

[0046] The pull rod assembly 360 includes a deflection rod 361 , a deflection shaft 362 and a pull rod 363 . The deflection shaft 362 is disposed at one end of the deflection rod 361 . Both ends of the deflection shaft 362 extend out of the deflection rod 361 and are rotatably connected to the top end of the second deflection frame 342 .

[0047] One end of the deflection rod 361 away from the deflection shaft 362 is hinged to the lifting rod of the lifting motor 330 .

[0048] One end of the pull rod 363 is hinged to the end of the deflection rod 361 away from the lifting motor 330 , and the other end is hinged to the first deflection frame 341 .

[0049] The reset component 350 has the same structure as the spring telescopic rod in the prior art. One end of the reset component 350 is hinged to the first deflection frame 341 , and the other end is hinged to the second deflection frame 342 .

[0050] When the lifting rod of the lifting motor 330 performs lifting motion, the deflection rod 361 first pulls the deflection rod 361 to deflect around the deflection axis 362 under the action of the lifting force, and the pull rod 363 pulls the first deflection frame 341 to move closer to or away from the second deflection frame 342 under the deflection action. During the deflection of the deflection rod 361 around the deflection axis 362, the second deflection frame 342 will also move closer to or away from the first deflection frame 341 due to the deflection force on the top, thereby limiting or unlocking the brake disc 320 to the outer rotating disc 410.

[0051] In this embodiment, the lifting motor 330 and the brake disc 320 are both existing technologies. Under the traction of the lifting motor 330, the driving mechanism drives the deflection frame to deflect, so that the brake disc 320 produces a braking effect similar to a drum brake, thereby achieving the purpose of safe locking.

[0052] The embodiment of the utility model further provides a winch, the winch includes a drum 100, a driving mechanism 200 and the above-mentioned winch safety brake. In the present application, the structures of the drum 100 and the driving mechanism 200 are basically the same as those of the prior art. The driving mechanism 200 also includes prior art equipment such as a deceleration component and a driving motor, which will not be described in detail here. The winch safety brake is added at one end of the drum 100 away from the driving mechanism 200 to meet the braking needs of the winch;

[0053] In addition, the outer gear ring 500 can also be arranged in the middle section of the reel 100, and the outer gear ring 500 is engaged with the driving wheel 440 to achieve limited braking.

[0054] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0055] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A winch safety brake, characterized in that: include: A turntable assembly (400), the turntable assembly (400) comprising a main shaft (430) and an outer turntable (410) and a driving wheel (440) arranged on the main shaft (430); A locking device (300), wherein a brake disc (320) is provided on the locking device (300), and the brake disc (320) abuts against an outer wall of an outer rotating disc (410); An outer gear ring (500) is arranged on the winch, and the outer gear ring (500) is meshedly connected with the driving wheel (440). When the brake disc (320) abuts against the outer wall of the outer rotating disc (410), the driving wheel (440) stops rotating to generate a blocking force to stop the rotation of the winch.

2. A winch safety brake according to claim 1, characterized in that: The turntable assembly (400) comprises two sets of bearing seats (420), and the main shaft (430) is assembled on the bearing seats (420); The driving wheel (440) and the outer turntable (410) are arranged on the main shaft (430) between the bearing seats (420).

3. A winch safety brake according to claim 2, characterized in that: The locking device (300) comprises a base (310), a deflection frame and a driving structure; The deflection frame comprises a first deflection frame (341) and a second deflection frame (342), wherein the first deflection frame (341) and the second deflection frame (342) are respectively hingedly connected to the base (310); The driving structure comprises a reset assembly (350) and a pull rod assembly (360), wherein both ends of the pull rod assembly (360) are respectively connected to the first deflection frame (341), and one end of the reset assembly (350) is hinged to the first deflection frame (341), and the other end is hinged to the second deflection frame (342).

4. A winch safety brake according to claim 3, characterized in that: The brake disc (320) is respectively arranged on the first deflection frame (341) and the second deflection frame (342), and the brake disc (320) is driven to approach or move away from the outer rotating disc (410) under the traction of the driving structure.

5. A winch safety brake according to claim 4, characterized in that: The base (310) is also provided with a lifting motor (330), and the lifting motor (330) is hingedly connected to the pull rod assembly (360).

6. A winch using the winch safety brake according to claim 5, characterized in that: The hoist comprises a driving mechanism (200) and a drum (100); One end of the drum (100) is connected to the driving mechanism (200), and the hoisting machine safety brake is arranged on the peripheral side of the drum (100).

7. A winch as claimed in claim 6, characterized in that: The reel (100) is provided with a first flange (110) and a second flange (120) at both ends thereof, the reel (100) is connected to a power output shaft of a driving mechanism (200) via the first flange (110), and the outer gear ring (500) is arranged on the outer edge of the second flange (120).

8. A winch as claimed in claim 6, characterized in that: The outer gear ring (500) is arranged at the middle section of the reel (100), and the outer gear ring (500) is meshingly connected with the driving wheel (440).

9. A winch as claimed in claim 7 or 8, characterized in that: The rotation axis of the main shaft (430) is parallel to the rotation axis of the reel (100).

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