Unlock instant, AI-driven research and patent intelligence for your innovation.

Surface contact type sliding shifting fork device and sliding shifting fork method

A surface contact, plane technology, applied in the direction of transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of product scrap, increase in matching clearance, shorten the overall service life of the product, etc., to improve the service life, avoid line Contact, avoid mutual wear effect

Active Publication Date: 2019-09-27
BEIJING MECHANICAL EQUIP INST
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the wear is large, the fit gap will increase accordingly, resulting in product scrapping and shortening the overall service life of the product

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Surface contact type sliding shifting fork device and sliding shifting fork method
  • Surface contact type sliding shifting fork device and sliding shifting fork method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A specific embodiment of the present invention discloses a surface contact sliding fork device, such as figure 1 and figure 2 As shown, the sliding fork device includes a ball screw, a screw nut 2, a transmission pin 3 and an output shaft 5, and a first transfer block 4 and a second transfer block with the same structure are arranged between the transmission pin 3 and the output shaft 5. Connection block 6; lead screw nut 2 is rollingly connected with ball screw 1, transmission pin 3 is fixedly connected with lead screw nut 2, and drive pin 3 is provided with a boss; the boss is connected with the first transfer block 4 and the second transfer block The inner surfaces of 6 are in surface contact; the output shaft 5 is provided with a U-shaped opening fork structure, and there is a U-shaped opening fork structure between the outer surfaces of the first adapter block 4 and the second adapter block 6. surface contact.

[0032] Specifically, the surface contact shift for...

Embodiment 2

[0039] This embodiment provides a surface-contact sliding fork device, the structure of which is basically the same as that of the surface-contact sliding fork device provided in Embodiment 1, the only difference being that the shape of the boss on the transmission pin 3 is cylindrical. Correspondingly, the inner surfaces of the first adapter block 4 and the second adapter block 6 are also cylindrical, and the cylindrical boss cooperates with the first adapter block 4 and the second adapter block 6 to form a sliding vice.

[0040] Specifically, the boss of the drive pin 3 in this embodiment is provided with a cylindrical surface; the inner surfaces of the first adapter block 4 and the second adapter block 6 are respectively the first cylindrical surface and the second cylindrical surface; the first The outer surfaces of the adapter block 4 and the second adapter block 6 are respectively provided with a first plane and a second plane; the boss forms a cylindrical surface pair w...

Embodiment 3

[0044] This embodiment provides a surface-contact sliding fork method. Embodiment 1 is used to provide a surface-contact sliding fork device. The surface-contact sliding fork method includes the following steps:

[0045] Step S1: the ball screw 1 rotates under the action of external force, and the screw nut 2 and the transmission pin 3 make a linear motion along the axis of the ball screw 1;

[0046] Step S2: The transmission pin 3 cooperates with the first spherical surface and the second spherical surface of the first adapter block 4 and the second adapter block 6 to form a spherical pair, and drives the output shaft 5 to rotate.

[0047] It should be noted that in step S2, when the output shaft 5 undergoes pitch or yaw deformation under the action of an external load, the first adapter block 4 and the second adapter block 6 will pitch or yaw relative to the transmission pin 3 Movement, the spherical pair prevents the deformation of the output shaft 5 from being transmitted ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a surface contact type sliding shifting fork device and a sliding shifting fork method, and belongs to the technical field of shifting fork devices. The technical problem that the abrasion is serious due to the fact that an existing transmission pin is in line contact with the shifting fork device is solved. The surface contact type sliding shifting fork device comprises a ball screw, a screw nut, a transmission pin, an output shaft, a first switching block and a second switching block, wherein the first switching block and the second switching block are of the same structure; the lead screw nut is in rolling connection with the ball screw, the transmission pin is fixedly connected with the lead screw nut, and the transmission pin is provided with a boss; the boss is in surface contact with the inner side surfaces of the first adapter block and the second adapter block; and the output shaft is provided with a U-shaped opening shifting fork structure, and the U-shaped opening shifting fork structure is in surface contact with the outer side surfaces of the first switching block and the second switching block. According to the surface contact type sliding shifting fork device, the transmission pin of the sliding shifting fork device is in surface contact with the output shaft, so that mutual contact and mutual abrasion are avoided, and the service life of products can be effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of fork devices, in particular to a surface-contact sliding fork device and a sliding fork method. Background technique [0002] The fork structure is widely used in rotary actuators, and one of the common motion types is the ball screw plus fork. The motor directly or indirectly drives the ball screw to rotate, and the screw nut converts the rotation into linear motion, driving the output shaft with the fork structure to rotate. Usually, a transmission pin is used to drive the movement of the shift fork, and the transmission pin cooperates with the opening of the shift fork through a cylindrical surface, and there is a line contact between the two. The transmission pin and the lead screw nut can be divided into two parts, which are fixedly connected, or combined into one part, which is a nut with cylindrical features. [0003] The transmission pin with cylindrical surface features is used to directly driv...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16H25/22
CPCF16H25/2204
Inventor 余东东马俊王皓王凯刘超魏厚震
Owner BEIJING MECHANICAL EQUIP INST