CN109647898B

CN109647898B - Cross universal coupling with axial buffering and limiting device

Info

Publication number: CN109647898B
Application number: CN201811594010.7A
Authority: CN
Inventors: 陈兰奎; 杨成林; 周斌; 彭声龙; 涂明
Original assignee: Jiujiang Xinlian Chuandong Machinery Co ltd
Current assignee: Jiujiang Xinlian Chuandong Machinery Co ltd
Priority date: 2018-12-25
Filing date: 2018-12-25
Publication date: 2023-08-25
Anticipated expiration: 2038-12-25
Also published as: CN109647898A

Abstract

The utility model provides a take axial buffering and stop device's cross universal joint, includes the welding fork of welding fixed at spline shaft one end, and the welding fork is equipped with the terminal surface key through the cross axle assembly flange fork, be equipped with the fixed plate in the welding fork through hexagonal screw fixation, the one end of fixed plate through bolt fixed connection guide arm, be equipped with packing ring and the spring of suit on the guide arm in the spline shaft, the outside cover of spline shaft is equipped with the spline housing, the one end fixedly connected with spacing pipe of spline housing is equipped with the stop collar of suit on the guide arm in the spacing pipe, is equipped with the dish spring in the stop collar, and the one end of dish spring is equipped with the guide pin bushing, and the one end of guide pin bushing is equipped with the fender lid of fixing on the stop collar through hexagonal screw fixation, the one end fixedly connected with middle takeover of spacing pipe, the one end connection 1# welding fork of middle takeover. The invention can ensure that the universal shaft runs more safely and stably and has lower noise.

Description

Cross universal coupling with axial buffering and limiting device

Technical Field

The invention relates to an Oldham coupling with an axial buffering and limiting device.

Background

The universal coupling is used for connecting the rolling mill and the speed reducer in rolling equipment, and the universal coupling is required to be made into a spline pair to meet the expansion and contraction requirements due to the variation of the specifications of rolled steel, and the spline pair moves axially along with the rolling mill due to the axial impact force of a roller in the rolling process of a rolled product, so that relative axial movement is generated between spline internal teeth and a spline shaft, the abrasion of the spline pair is accelerated, and the service life of the total universal shaft is greatly reduced.

Disclosure of Invention

The invention aims to provide the cross universal coupling with the axial buffering and limiting device, which solves the problem that the prior equipment has relative axial movement between spline internal teeth and a spline shaft, so that the abrasion of a spline pair is accelerated, and the service life of the total universal shaft is greatly reduced.

The technical scheme who takes in order to realize above-mentioned purpose is, a cross universal joint who takes axial buffering and stop device, including the welding fork of welded fastening in spline shaft one end, the welding fork is through the flange fork of cross axle assembly connection, is equipped with the terminal surface key on the flange fork, be equipped with the fixed plate in the welding fork through hexagonal screw fixation, the one end of fixed plate through bolt fixed connection guide arm, be equipped with packing ring and the spring of suit on the guide arm in the spline shaft, the outside cover of spline shaft is equipped with the spline housing, the one end fixedly connected with spacing pipe of spline housing, is equipped with the stop collar of suit on the guide arm in the spacing pipe, is equipped with the dish spring in the stop collar, and the one end of dish spring is equipped with the guide pin bushing, and the one end of guide pin bushing is equipped with the fender lid through hexagonal screw fixation on the stop collar, and the one end of fender lid is equipped with the nut of suit on the guide arm, the one end fixedly connected with middle takeover, the one end connection of middle takeover connects 1# welding fork, and 1# welding fork is connected 1# flange fork through 1# cross axle assembly.

3 pins are uniformly fixed on the side wall of the limiting pipe through socket head cap screws, pin holes matched with the 3 pins are formed in the side wall of the limiting sleeve, limiting through holes communicated with the inner side of the limiting sleeve are formed in the bottom of the pin holes, pin through holes are formed in the centers of the pins, one ends of the pin through holes are communicated with the limiting through holes, and an oil cup is arranged at the other ends of the pin through holes.

Advantageous effects

Compared with the prior art, the invention has the following advantages.

1. The axial impact force can be effectively reduced, the abrasion of the spline pair caused by the axial movement of the universal shaft is reduced, and the service lives of the spline pair and the whole universal shaft are greatly prolonged;

2. the universal shaft can be operated more safely and stably, and the noise is smaller.

Drawings

The present invention is described in further detail below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 at A-A in accordance with the present invention;

FIG. 3 is a schematic view of the structure of the stop collar of the present invention;

FIG. 4 is a schematic view of a guide bar according to the present invention;

fig. 5 is a schematic structural view of a guide sleeve in the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

The cross universal coupler with the axial buffering and limiting device comprises a welding fork head 4 fixedly welded at one end of a spline shaft 9, the welding fork head 4 is connected with a flange fork head 2 through a cross shaft assembly 3, an end face key 1 is arranged on the flange fork head 2, a fixing plate 5 is fixedly arranged in the welding fork head 4 through a hexagonal screw 20, the fixing plate 5 is fixedly connected with one end of a guide rod 6 through a bolt 19, a gasket 7 and a spring 8 sleeved on the guide rod 6 are arranged in the spline shaft 9, a spline sleeve 10 is sleeved outside the spline shaft 9, a limiting tube 14 is fixedly connected with one end of the spline sleeve 10, a limiting sleeve 11 sleeved on the guide rod 6 is arranged in the limiting tube 14, a disc spring 12 is arranged in the limiting sleeve 11, a guide sleeve 13 is arranged at one end of the disc spring 12, a blocking cover 24 fixed on the limiting sleeve 11 through a hexagonal screw 25 is arranged at one end of the guide sleeve 13, a nut 15 sleeved on the guide rod 6 is fixedly connected with an intermediate connecting tube 16, one end of the intermediate connecting tube 16 is connected with a fork head 17 # 1, and one end of the intermediate connecting tube 16 is connected with a cross head 17 # 1 and # 1 through a cross shaft assembly 29.

3 pins 21 are uniformly fixed on the side wall of the limiting pipe 14 through socket head cap screws 22, pin holes (26) matched with the 3 pins 21 are formed in the side wall of the limiting sleeve 11, limiting through holes 27 communicated with the inner side of the limiting sleeve 11 are formed in the bottoms of the pin holes 26, pin through holes 28 are formed in the centers of the pins 21, one ends of the pin through holes 28 are communicated with the limiting through holes 27, and oil cups 23 are arranged at the other ends of the pin through holes 28.

The working principle of the invention is that the hard damage to the spline shaft 9 and the spline sleeve 10 caused by the axial impact force of the rolling mill at the driving end is reduced by the double buffer action of the spring 8 and the butterfly spring 12, the abnormal damage of the spline shaft 9 and the spline sleeve 10 is effectively protected, and meanwhile, the function of a stabilizer is realized for the operation of the whole universal shaft system.

Claims

1. The cross universal coupler with the axial buffering and limiting device comprises a welding fork head (4) fixedly welded at one end of a spline shaft (9), the welding fork head (4) is connected with a flange fork head (2) through a cross shaft assembly (3), an end face key (1) is arranged on the flange fork head (2), the cross universal coupler is characterized in that a fixing plate (5) is fixedly arranged in the welding fork head (4) through a hexagon screw (20), the fixing plate (5) is fixedly connected with one end of a guide rod (6) through a bolt (19), a gasket (7) and a spring (8) sleeved on the guide rod (6) are arranged in the spline shaft (9), a spline sleeve (10) is sleeved at the outer side of the spline shaft (9), a limiting tube (14) is fixedly connected at one end of the spline sleeve (10), a limiting sleeve (11) sleeved on the guide rod (6) is arranged in the limiting tube (14), a spring (12) is arranged in the limiting sleeve (11), one end of the disc spring (12) is provided with a guide sleeve (13), one end of the guide sleeve (13) is provided with one end of the guide sleeve (24) which is fixedly connected with one end of the guide rod (24) through a hexagon screw (25) on the limiting cap (11), one end of the guide rod (24) is fixedly connected with the middle connecting tube (16), one end of the middle connecting pipe (16) is connected with a No. 1 welding fork head (17), and the No. 1 welding fork head (17) is connected with a No. 1 flange fork head (18) through a No. 1 cross shaft assembly (29); the utility model discloses a stopper pipe, including spacing pipe (14), fixed pipe is embedded evenly on the lateral wall of spacing pipe (14), be equipped with on the lateral wall of stop collar (11) with 3 pin (21) matched with cotter hole (26), the bottom of cotter hole (26) is equipped with spacing through-hole (27) of intercommunication stop collar (11) inboard, pin (21) center is equipped with pin through-hole (28), the one end and the spacing through-hole (27) of pin through-hole (28) are linked together, the other end of pin through-hole (28) is equipped with oil cup (23).