CN213839341U - Wet torque limiter - Google Patents

Abstract

The utility model relates to a wet-type torque limiter, include: an actuator; the actuating mechanism is connected with the input side; the actuating mechanism includes: the device comprises a cylinder body, a piston, a disc spring, a sealing ring, a threaded jacking pin and a floating disc; the device also comprises a supporting mechanism; the support mechanism includes: the inner gear ring, the support flange and the friction plate group are arranged on the outer side of the inner gear ring; also comprises a rotating body; the rotating body is connected with the output side; the rotating body includes: a rotating seat and a dual sheet; the dual piece is connected with the rotating seat through a spline and can move axially relative to the rotating seat; the dual sheets and the friction sheet group are arranged at intervals and are arranged between the actuating mechanism and the supporting mechanism; the rotating body is supported on the actuating mechanism through a first seal and a first bearing and is limited by a first clamp spring to prevent axial movement; the rotating body is supported on the supporting mechanism through a second seal and a second bearing and is limited by a second clamp spring to prevent axial movement; the torque is adjusted through the hydraulic oil, the pressure and the torque are in a linear relation, and the operation is simple and convenient.

Description

Wet torque limiter

Technical Field

The utility model relates to a be applied to the torque limiter who connects prime mover and working machine, especially relate to the structure of this torque limiter.

Background

With the continuous development of science and technology, the demand for adding a safety protection torque limiter in a mechanical transmission part is increasing day by day.

The safety protection torque limiter in the prior art usually uses mechanical type adjustment torque, and in the past, fatigue damage of parts is easily caused in adjustment and installation, and maintenance cost is increased. And the mechanical torque adjustment operation is complex, the precision degree is low, and the requirements of modern safety parts are not met.

Disclosure of Invention

The utility model discloses the technical problem that needs to solve provides a wet-type torque limiter, aims at solving foretell problem.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model discloses wet-type torque limiter, include: an actuator; the actuating mechanism is connected with the input side; the actuating mechanism comprises: the device comprises a cylinder body, a piston, a disc spring, a sealing ring, a threaded jacking pin and a floating disc; the piston is arranged in the cylinder groove, is sealed by a sealing ring and can move axially relative to the cylinder groove; the disc spring is arranged between the piston and the floating disc and can apply force to the floating disc; the threaded jacking pin can limit the axial position of the piston; further comprising: a support mechanism; the supporting mechanism includes: the inner gear ring, the support flange and the friction plate group are arranged on the outer side of the inner gear ring; the friction plate group is connected to the inner gear ring through a spline and can move axially relative to the inner gear ring; the supporting mechanism is connected with the actuating mechanism through a screw and a nut; also comprises a rotating body; the rotating body is connected with the output side; the rotating body includes: a rotating seat and a dual sheet; the dual piece is connected with the rotating seat through a spline and can move axially relative to the rotating seat; the dual sheets and the friction sheet group are arranged at intervals and are arranged between the actuating mechanism and the supporting mechanism; the rotating body is supported on the actuating mechanism through a first seal and a first bearing and is limited by a first clamp spring to prevent axial movement; the rotating body is supported on the supporting mechanism through the second seal and the second bearing and is limited by the second clamp spring to prevent axial movement.

Compared with the prior art, the beneficial effects of the utility model are that: the torque is adjusted through the hydraulic oil, the pressure and the torque are in a linear relation, and the operation is simple and convenient. Meanwhile, the problem of fatigue damage of parts generated in mechanical adjustment and assembly is reduced, and the maintenance cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

as shown in fig. 1, the wet torque limiter of the present invention includes: an actuator; the actuating mechanism is connected with the input side; the actuating mechanism comprises: the device comprises a cylinder body 12, a piston 14, a disc spring 13, a sealing ring 15, a threaded ejector pin 19 and a floating disc 10; the piston 14 is arranged in a groove of the cylinder body 12, is sealed by a sealing ring 15 and can move axially relatively; the disc spring 13 is arranged between the piston 14 and the floating disc 10 and can apply force to the floating disc 10; the threaded top pin 19 can limit the axial position of the piston 14; further comprising: a support mechanism; the supporting mechanism includes: the inner gear ring 7, the support flange 5 and the friction plate group 8; the friction plate group 8 is connected to the inner gear ring 7 through a spline and can move axially relative to the inner gear ring; the supporting mechanism is connected with the actuating mechanism through a screw 6 and a nut 11; also comprises a rotating body; the rotating body is connected with the output side; the rotating body includes: a rotating seat 1 and a dual piece 9; the dual piece 9 is connected with the rotary seat 1 through a spline and can move axially relatively; the dual sheets 9 and the friction sheet group 8 are arranged at intervals and are arranged between the actuating mechanism and the supporting mechanism; the rotating body is supported on the actuating mechanism through a first seal 18 and a first bearing 17 and limited by a first clamp spring 16 to prevent axial movement; the rotating body is supported on the supporting mechanism through the second seal 2 and the second bearing 4 and is limited by the second clamp spring 3, so that axial movement is prevented.

The utility model discloses a theory of operation is: the screw top pin 19 is used for pushing against the conical surface of the piston 14, so that the disc spring 13 generates elastic force to apply force on the floating disc 10, and the friction force is generated between the friction plate group 8 and the dual plate 9 due to the action of the elastic force, so that the torque is transmitted. When overload or mechanical failure exceeds the initially set torque value, the rotating seat 1 drives the dual plate 9 through the spline and limits the transmitted torque in a slipping manner with the friction plate group 8. After the machine load returns to normal, the dual plate 9 and the friction plate group 8 are automatically pressed and reset under the elastic force generated by the disc spring 13, so that the damage of a transmission system is prevented.

When the torque needs to be adjusted, hydraulic oil is communicated with the port A, the piston is pushed to move rightwards, the disc spring 13 is pressed tightly to generate elastic force, the force is applied to the floating disc 10 to enable the dual plate 9 and the friction plate set 8 to generate friction force, and the pressure of the hydraulic oil and the elastic force are in a linear relation, so that the torque is adjusted. When the set torque is reached, the threaded knock pin 19 is used to knock against the conical surface of the piston 14, limiting the movement of the piston and completing the adjustment.

Claims (1)

1. A wet torque limiter, comprising: an actuator; the actuating mechanism is connected with the input side; the actuating mechanism comprises: the device comprises a cylinder body, a piston, a disc spring, a sealing ring, a threaded jacking pin and a floating disc; the piston is arranged in the cylinder groove, is sealed by a sealing ring and can move axially relative to the cylinder groove; the disc spring is arranged between the piston and the floating disc and can apply force to the floating disc; the threaded jacking pin can limit the axial position of the piston; further comprising: a support mechanism; the supporting mechanism includes: the inner gear ring, the support flange and the friction plate group are arranged on the outer side of the inner gear ring; the friction plate group is connected to the inner gear ring through a spline and can move axially relative to the inner gear ring; the supporting mechanism is connected with the actuating mechanism through a screw and a nut; also comprises a rotating body; the rotating body is connected with the output side; the rotating body includes: a rotating seat and a dual sheet; the dual piece is connected with the rotating seat through a spline and can move axially relative to the rotating seat; the dual sheets and the friction sheet group are arranged at intervals and are arranged between the actuating mechanism and the supporting mechanism; the rotating body is supported on the actuating mechanism through a first seal and a first bearing and is limited by a first clamp spring to prevent axial movement; the rotating body is supported on the supporting mechanism through the second seal and the second bearing and is limited by the second clamp spring to prevent axial movement.

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