Torsion limiter convenient to overhaul

Abstract

The torsion limiter comprises a machine body, a chain wheel arranged outside the machine body, a brake pad arranged at the top end of the chain wheel, a pressing plate and an assembly, an elastic piece is arranged at the top end of the pressing plate, a plum-blossom-shaped pad is arranged at the top end of the elastic piece, a retaining nut is arranged at the top end of the plum-blossom-shaped pad, and the assembly is used for integrating a plurality of components. Through the arrangement of the pressing plate, the elastic piece, the plum blossom pad and the assembly, the pressing plate, the elastic piece and the plum blossom pad are sequentially stacked, then the adjusting bolt is inserted into the round hole of the second fixing block in a penetrating mode and connected with the connecting column in a threaded penetrating mode, and the pressing plate, the elastic piece and the plum blossom pad form a whole. When the torsion limiter is disassembled and overhauled, the pressing plate, the elastic piece and the plum blossom pad are disassembled as a whole, so that the number of disassembled parts of the torsion limiter is reduced, the torsion limiter is disassembled more quickly, and meanwhile, when the torsion limiter is stored, the situation that the parts are lost due to numerous parts is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to torsion limiter technical field, especially in kind of torsion limiter convenient for overhauling. BACKGROUND

[0002] Torsion limiter is the component connected with the driving machine and the working machine, is used for overload protection, prevents the equipment of mechanical damage.

[0003] Friction type torsion limiter is through the deformation of elastic sheet, realizes the protection action, and friction type torsion limiter is composed of body, two brake pads, pressing plate, chain wheel, multiple elastic sheets, plum blossom pad and stop screw nut etc., two brake pads are arranged at the both sides of chain wheel, and the pressing plate, multiple elastic sheets and plum blossom pad are all arranged between one brake pad and stop screw nut, so when carrying out torsion limiter overhaul, multiple components such as stop screw nut, pressing plate, multiple elastic sheets and plum blossom pad need to be disassembled one by one, and after disassembling, the multiple scattered components are stored, and there will be the condition of partial components loss due to mistake, which influences the reassembly of torsion limiter after overhaul. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of torsion limiters convenient for overhauling to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of torsion limiter convenient for overhauling, including body, the outside of the body is provided with chain wheel, the top of the chain wheel is provided with brake pad for extruding chain wheel, further including:

[0006] Pressing plate, the pressing plate is arranged at the top of brake pad, the top of the pressing plate is provided with elastic sheet for elastic deformation, the top of the elastic sheet is provided with plum blossom pad for limiting the movement of elastic sheet, the top of the plum blossom pad is provided with stop screw nut for limiting the movement of plum blossom pad;

[0007] Assembly, the assembly is arranged at the outer wall of pressing plate, and the assembly is used for the integration of multiple components.

[0008] Preferably, the assembly includes connecting column and adjusting bolt, the top of the connecting column is provided with circular groove, and the adjusting bolt is inserted into the circular groove.

[0009] Preferably, the inner wall of the circular groove is provided with internal thread, and the thread of the outer wall of the adjusting bolt is engaged with the internal thread.

[0010] Preferably, the outer wall of the pressing plate is fixedly connected with first fixed block, the top of the first fixed block is fixedly connected with the bottom of connecting column, and the outer wall of the plum blossom pad is fixedly connected with second fixed block for installing adjusting bolt.

[0011] Preferably, the top end of the second fixing block is provided with a round hole, and the adjusting bolt is connected with the round hole.

[0012] Preferably, the pressing plate, the elastic sheet and the star washer are sequentially arranged.

[0013] The technical effects and advantages of the present application are as follows:

[0014] The present application utilizes the arrangement of the pressing plate, the elastic sheet, the star washer and the combined part, sequentially stacks the pressing plate, the elastic sheet and the star washer, then inserts the adjusting bolt into the round hole of the second fixing block and threadedly connects with the connecting column, thereby forming an integral whole of the pressing plate, the elastic sheet and the star washer, so that when the torque limiter is disassembled for maintenance, the pressing plate, the elastic sheet and the star washer are disassembled as a whole, thereby reducing the number of disassembled parts of the torque limiter, making the disassembly more convenient, and reducing the loss of parts during storage. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective structural schematic view of the present application.

[0016] Figure 2 It is a front view structural schematic view of the present application.

[0017] Figure 3 It is a perspective structural schematic view of the pressing plate and the star washer of the present application.

[0018] Figure 4 It is a perspective structural schematic view of the pressing plate of the present application.

[0019] Figure 5 It is a perspective structural schematic view of the star washer of the present application.

[0020] In the figure: 1, machine body; 2, chain wheel; 3, brake pad; 4, pressing plate; 5, elastic sheet; 6, star washer; 7, stop nut; 8, combined part; 81, connecting column; 82, adjusting bolt; 83, first fixing block; 84, second fixing block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] The present application provides a torque limiter Figures 1-5The utility model provides a kind of torsion limiter facilitating maintenance, including body 1, the outside of body 1 is provided with sprocket 2, the top of sprocket 2 is provided with brake pad 3 for extruding sprocket 2, further including:

[0023] pressing plate 4, pressing plate 4 is provided at the top of brake pad 3, the top of pressing plate 4 is provided with spring 5 for elastic deformation, the top of spring 5 is provided with key washer 6 for limiting the movement of spring 5, the top of key washer 6 is provided with stop nut 7 for limiting the movement of key washer 6;

[0024] assembly 8, assembly 8 is provided at the outer wall of pressing plate 4, and assembly 8 is used for integration of multiple components.

[0025] Specifically, pressing plate 4, spring 5 and key washer 6 are sequentially provided.

[0026] Further, body 1, sprocket 2, brake pad 3, pressing plate 4, spring 5, key washer 6 and stop nut 7 constitute the existing friction type torsion limiter, one end of body 1 is rod-shaped, a thread is formed in the outer wall thereof, for threaded engagement and installation of stop nut 7, two brake pads 3 are provided, respectively located at the bottom end and the top end of sprocket 2, pressing plate 4, spring 5, key washer 6 and stop nut 7 are sequentially stacked from bottom to top, spring 5 is provided with a plurality of springs according to the required elastic force, the top of key washer 6 is a flat surface, so that stop nut 7 is placed, key washer 6 is composed of a disc and a plurality of protrusions, the plurality of protrusions are equally spaced around the outer wall of the disc, the protrusions and the disc are integrally formed, and the circular size formed by the outer edge of the protrusions is larger than the size of the stop nut 7.

[0027] Specifically, assembly 8 includes connecting column 81 and adjusting bolt 82, a circular groove is formed in the top of connecting column 81, adjusting bolt 82 is inserted into the circular groove, an internal thread is formed in the inner wall of the circular groove, and the thread on the outer wall of adjusting bolt 82 is engaged with the internal thread, the outer wall of pressing plate 4 is fixedly connected with first fixed block 83, the top of first fixed block 83 is fixedly connected with the bottom end of connecting column 81, the outer wall of key washer 6 is fixedly connected with second fixed block 84 for installing adjusting bolt 82, a circular hole is formed in the top of second fixed block 84, and adjusting bolt 82 is connected with the circular hole.

[0028] Further, the assembly 8 is provided in two groups, the two groups of assemblies 8 are symmetrically arranged, two first fixing blocks 83 are symmetrically arranged on the outer wall of the pressing plate 4, and two second fixing blocks 84 are symmetrically arranged on the end of the protrusion of the star washer 6, the first fixing block 83 is fixed with the outer wall of the pressing plate 4 by welding, the second fixing block 84 is fixed with the end of the protrusion by welding, the position of the circular hole corresponds to the position of the connecting column 81, the position where the connecting column 81 is connected with the first fixing block 83 is fixed by welding, the diameter of the circular hole is 1.5 times of the outer diameter of the connecting column 81, the inner wall of the circular hole is a smooth inner wall, the adjusting bolt 82 is composed of a head and a shank, the thread on the outer wall of the shank of the adjusting bolt 82 is engaged with the internal thread of the circular groove of the connecting column 81, the size of the head of the adjusting bolt 82 is 1.2 times of the diameter of the circular hole, the depth of the shank of the adjusting bolt 82 extending into the circular groove of the connecting column 81 determines the number of the elastic sheets 5, at this time, the star washer 6 is only stacked on the top end of the elastic sheet 5, and no further pressure is applied to the elastic sheet 5, the star washer 6 is extruded by rotating the retainer nut 7, the connecting column 81 is inserted into the circular hole, at this time, the retainer nut 7 pushes the star washer 6 to extrude the elastic sheet 5, thereby the degree of extrusion of the elastic sheet 5 is determined according to the position of the retainer nut 7, and the torque of the torque limiter is adjusted.

[0029] When the torque limiter is installed, the number of the elastic sheets 5 is selected according to the requirement, then the pressing plate 4, the plurality of elastic sheets 5 and the star washer 6 are stacked and placed, the position of the star washer 6 and the pressing plate 4 is adjusted, so that the second fixing block 84 is located directly above the first fixing block 83, at this time, the adjusting bolt 82 is inserted into the circular hole of the second fixing block 84, and is connected with the circular groove of the connecting column 81 by thread insertion, the pressing plate 4, the plurality of elastic sheets 5 and the star washer 6 form an integrated elastic component, finally, the brake pad 3, the sprocket 2, the brake pad 3, the elastic component and the retainer nut 7 are stacked in sequence, and the installation of the torque limiter is completed, when the torque limiter needs to be repaired and disassembled, the disassembly is performed in sequence, in the process of disassembling the entire component, the total number of parts does not change, but the elastic component integrates the pressing plate 4, the elastic sheet 5 and the star washer 6, and the disassembly and installation are more time-saving and labor-saving, and the loss of parts is not easy after disassembly.

[0030] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A torsion limiter facilitating maintenance, comprising a machine body (1), the outer part of said machine body (1) is provided with a sprocket (2), the top end of said sprocket (2) is provided with a brake shoe (3) for pressing the sprocket (2), characterized in that, Also include: The pressing plate (4) is arranged at the top end of the brake pad (3), the top end of the pressing plate (4) is provided with a spring plate (5) for elastic deformation, the top end of the spring plate (5) is provided with a plum pad (6) for limiting the movement of the spring plate (5), the top end of the plum pad (6) is provided with a stop nut (7) for limiting the movement of the plum pad (6); The assembly (8) is arranged on the outer wall of the pressing plate (4), and the assembly (8) is used for the integration of multiple components.

2. The torque limiter of claim 1, wherein The assembly (8) includes a connecting column (81) and an adjusting bolt (82), the top end of the connecting column (81) is provided with a circular groove, and the adjusting bolt (82) is inserted into the circular groove.

3. A torque limiter for facilitating maintenance according to claim 2, wherein The inner wall of the circular groove is provided with an internal thread, and the thread on the outer wall of the adjusting bolt (82) is engaged with the internal thread.

4. A torque limiter for facilitating maintenance according to claim 3, wherein The outer wall of the pressing plate (4) is fixedly connected with a first fixed block (83), the top end of the first fixed block (83) is fixedly connected with the bottom end of the connecting column (81), and the outer wall of the plum pad (6) is fixedly connected with a second fixed block (84) for mounting the adjusting bolt (82).

5. A torque limiter for facilitating maintenance according to claim 4, wherein The top end of the second fixed block (84) is provided with a circular hole, and the adjusting bolt (82) is connected with the circular hole.

6. The easy access torque limiter of claim 1, wherein, The pressing plate (4), the spring plate (5) and the plum pad (6) are arranged in sequence.

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