CN210173150U

CN210173150U - Crankshaft finishing machine center structure with self-protection function

Info

Publication number: CN210173150U
Application number: CN201920977324.9U
Authority: CN
Inventors: Junjie Guan; 关俊杰; Zhongsong Guan; 管仲嵩; Qingyan Shang; 尚清艳
Original assignee: Liaoning Kechuang Heavy Crankshaft Co Ltd
Current assignee: Liaoning Kechuang Heavy Crankshaft Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-03-24
Anticipated expiration: 2029-06-27

Abstract

The utility model relates to a top structure of crankshaft finishing machine with self preservation protects function, including support frame, top body and driving sprocket, its technical essential is: the supporting frame is a U-shaped frame, a centre body is assembled on two vertical arms of the U-shaped frame by utilizing a front bearing assembly and a rear bearing assembly, the transmission chain wheel is connected with the centre body part between the two vertical arms by utilizing a flat key, the front bearing assembly comprises a front end fixing sleeve, a concentric bearing sleeve, a thrust ball bearing I, two deep groove ball bearings arranged in parallel, a front gland, a front sealing cover and the like, and the end face of the thrust ball bearing I protrudes out of the concentric bearing sleeve and is attached to the front end face of the transmission chain wheel; the rear bearing assembly comprises a rear end fixing sleeve, a cylindrical roller bearing, a thrust ball bearing II, a rear gland, a rear sealing cover and the like. The utility model discloses inside preventing that the polishing pearl from getting into top structure, reducing top wearing and tearing probability, showing improve equipment life.

Description

Crankshaft finishing machine center structure with self-protection function

Technical Field

The utility model relates to a finishing machine top device for bent axle, especially a bent axle finishing machine top structure with self preservation protects the function.

Background

The finishing machine tip is used for driving the crankshaft to rotate in the finishing groove filled with finishing beads in the finishing process, and the following problems exist in the process: the finishing beads are easy to enter the tip structure, so that the rotating part of the tip is abraded, even the tip is forced to stop working and stop, the service life of the tip structure is greatly shortened, and the working efficiency of the finishing machine is influenced.

Disclosure of Invention

The utility model aims at providing a solve the top structure of crankshaft finishing machine that has the self preservation and protect function of above-mentioned problem, prevent that the finishing pearl from getting into inside the top structure of finishing machine, reduce top wearing and tearing probability, showing improve equipment life.

The technical scheme of the utility model is that:

the utility model provides a top structure of crankshaft finishing machine with self preservation protects function, includes support frame, top body and driving sprocket, and its technical essential is: the supporting frame is a U-shaped frame, the centre body is assembled on two vertical arms of the U-shaped frame by utilizing a front bearing assembly and a rear bearing assembly, the transmission chain wheel is connected with the centre body part between the two vertical arms by utilizing a flat key, the front bearing assembly consists of a front end fixing sleeve fixed on the supporting frame, a concentric bearing sleeve welded at the end of the front end fixing sleeve close to the transmission chain wheel, a thrust ball bearing I arranged between the concentric bearing sleeve and the peripheral surface of the centre body, two deep groove ball bearings arranged between the front end fixing sleeve and the peripheral surface of the centre body in parallel, a bearing spacing pad arranged between the thrust ball bearing I and the deep groove ball bearing adjacent to the thrust ball bearing I, a front gland arranged at the front side of the front end fixing sleeve, and a front sealing cover connected with the front gland, the end surface of the thrust ball bearing I protrudes out of the concentric bearing sleeve and is attached to the front end surface of the transmission chain wheel, the, the top surface of the annular pressing table is attached to the end surface of the deep groove ball bearing;

the rear bearing assembly is composed of a rear end fixing sleeve fixed on the support frame, a cylindrical roller bearing, a thrust ball bearing II and a rear gland which are sequentially arranged in the rear end fixing sleeve, a chain wheel spacing pad arranged between the cylindrical roller bearing and the rear end face of the transmission chain wheel, and a rear sealing cover fixed on the rear gland, wherein the rear gland is provided with a limiting stop corresponding to the thrust ball bearing II, the rear end fixing sleeve is provided with a positioning groove corresponding to the rear gland, and the rear gland is fixedly connected with the rear end fixing sleeve.

According to the crankshaft finishing machine center structure with the self-protection function, the front circumferential section of the center body is connected with the shifting fork sleeve through the flat key, and the movable center body used for supporting and driving the crankshaft to rotate in the finishing machine is welded outside the shifting fork sleeve.

According to the crankshaft finishing machine center structure with the self-protection function, the center body is provided with the limiting boss corresponding to the deep groove ball bearing close to the front gland.

According to the crankshaft finishing machine tip structure with the self-protection function, the right-angle supporting plate is arranged at the top of the supporting frame corresponding to the front bearing assembly and the rear bearing assembly, the compressed air buffer chamber is arranged on the lower surface of the right-angle supporting plate, the air inlet used for being connected with a compressed air source is formed in the top of the compressed air buffer chamber, and the plurality of air nozzles facing the front bearing assembly or the rear bearing assembly are uniformly arranged at the lower part of the compressed air buffer chamber so as to blow away impurity particles and the like falling to the front bearing assembly and the rear bearing assembly at regular time, so that the tip is prevented from entering the front bearing assembly and the rear bearing.

The utility model has the advantages that:

the utility model discloses before utilizing, the back bearing assembly is assembled on U type frame, guarantees the working property of top structure, utilizes before simultaneously, the back bearing assembly realizes sealed to top structure's rotating part, avoids the finishing pearl to get into inside the top structure of finishing machine, reduces the probability that top transmission part is worn and torn greatly, is showing the life who improves top structure, effectively improves the work efficiency of finishing machine, reduces the maintenance cost.

Drawings

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

FIG. 2 is a view showing the usage state of the present invention;

fig. 3 is a view from a in fig. 1.

In the figure: 1. the bearing comprises a support frame, 2 air inlets, 3 right-angle support plates, 4 compressed air buffer chambers, 5 air nozzles, 6 rear end fixing sleeves, 7 rear sealing covers, 8 rear pressing covers, 9 thrust ball bearings II, 10 cylindrical roller bearings, 11 tip bodies, 12 transmission chain wheels, 13 flat keys, 14 concentric bearing sleeves, 15 front end fixing sleeves, 16 crankshafts, 17 thrust ball bearings I and 18 bearing spacing pads, 19 deep groove ball bearings, 20 shifting fork sleeves, 21 front sealing covers, 22 flat keys and 23 chain wheel spacing pads.

Detailed Description

As shown in fig. 1-3, the crankshaft finishing machine center structure with the self-protection function comprises a support frame 1, a center body 11 and a transmission chain wheel 12. The supporting frame 1 is a U-shaped frame, the tip body 11 is assembled on two vertical arms of the U-shaped frame by utilizing front and rear bearing assemblies, and the transmission chain wheel 12 is connected with the tip body part between the two vertical arms by utilizing a flat key 13. The front circumferential section of the center body 11 is connected with a shift fork sleeve 20 by a flat key 22, and a movable center body 21 for supporting and driving the crankshaft 16 to rotate in the finishing machine is welded outside the shift fork sleeve 20.

The front bearing assembly comprises a front end fixing sleeve 15 fixed on the support frame 1, a concentric bearing sleeve 14 welded to the front end fixing sleeve 15 and close to the end of the transmission chain wheel 12, a thrust ball bearing I17 arranged between the concentric bearing sleeve 14 and the outer peripheral surface of the tip body 11, two deep groove ball bearings 19 arranged between the front end fixing sleeve 14 and the outer peripheral surface of the tip body 11 in parallel, a bearing spacing pad 18 arranged between the thrust ball bearing I17 and the deep groove ball bearing 19 adjacent to the thrust ball bearing I17, a front gland 20 arranged on the front side of the front end fixing sleeve 15, and a front sealing cover 21 connected with the front gland 20. The terminal surface protrusion of thrust ball bearing I17 is in concentric bearing housing 15 and with the laminating of the preceding terminal surface of drive sprocket 12, preceding gland 19 inboard is equipped with the annular that stretches into in the fixed cover 15 of front end and presses the platform, the top surface and the 19 terminal surface laminating of deep groove ball bearing that the platform was pressed to the annular. The centre body 11 is provided with a limiting boss corresponding to the deep groove ball bearing 19 close to the front gland 20.

The rear bearing assembly consists of a rear end fixing sleeve 6 fixed on the support frame 1, a cylindrical roller bearing 10, a thrust ball bearing II 9, a rear gland 8, a chain wheel spacing pad 23 and a rear sealing cover 7, wherein the cylindrical roller bearing 10, the thrust ball bearing II 9 and the rear gland 8 are sequentially arranged in the rear end fixing sleeve 6, the chain wheel spacing pad 23 is arranged between the cylindrical roller bearing 10 and the rear end face of the transmission chain wheel 12, and the rear sealing cover 7 is fixed on. The rear gland 8 is provided with a limit stop corresponding to the thrust ball bearing II 9, the rear end fixing sleeve 6 is provided with a positioning groove corresponding to the rear gland 8, and the rear gland 8 is fixedly connected with the rear end fixing sleeve 6. The longitudinal sections of the front fixing sleeve 15, the rear fixing sleeve 6 and the shifting fork sleeve 20 are respectively T-shaped, so that the positioning is convenient.

The position that the support frame 1 top corresponds preceding, back bearing assembly is equipped with right angle backup pad 3, the lower surface of right angle backup pad 3 is equipped with compressed air surge chamber 4, the top of compressed air surge chamber 4 is equipped with air inlet 2 that is used for connecting compressed air source, the lower part of compressed air surge chamber 4 evenly is equipped with a plurality of air jets 5 towards preceding bearing assembly or back bearing assembly.

When the center body 11 is used, the front bearing assembly and the rear bearing assembly are assembled on the U-shaped frame, the rotating performance of the center and the working performance of resisting axial force are ensured, the front sealing cover 21 and the rear sealing cover 7 are used for realizing front sealing and rear sealing, the smooth beads are prevented from entering the center structure, and the use is reliable; in addition, a plurality of air nozzles 5 are utilized to blow away impurity particles and the like falling on the front bearing assembly and the rear bearing assembly at regular time, so that the impurity particles and the like are prevented from entering the front bearing assembly and the rear bearing assembly to abrade the tip.

Claims

1. The utility model provides a top structure of crankshaft finishing machine with self preservation protects function, includes support frame, top body and driving sprocket, its characterized in that: the supporting frame is a U-shaped frame, the centre body is assembled on two vertical arms of the U-shaped frame by utilizing a front bearing assembly and a rear bearing assembly, the transmission chain wheel is connected with the centre body part between the two vertical arms by utilizing a flat key, the front bearing assembly consists of a front end fixing sleeve fixed on the supporting frame, a concentric bearing sleeve welded at the end of the front end fixing sleeve close to the transmission chain wheel, a thrust ball bearing I arranged between the concentric bearing sleeve and the peripheral surface of the centre body, two deep groove ball bearings arranged between the front end fixing sleeve and the peripheral surface of the centre body in parallel, a bearing spacing pad arranged between the thrust ball bearing I and the deep groove ball bearing adjacent to the thrust ball bearing I, a front gland arranged at the front side of the front end fixing sleeve, and a front sealing cover connected with the front gland, the end surface of the thrust ball bearing I protrudes out of the concentric bearing sleeve and is attached to the front end surface of the transmission chain wheel, the, the top surface of the annular pressing table is attached to the end surface of the deep groove ball bearing;

2. The crankshaft finishing machine center structure with self-protection function of claim 1, wherein: the movable center is characterized in that the front circumferential section of the center body is connected with a shifting fork sleeve through a flat key, and a movable center body used for supporting and driving a crankshaft to rotate in the finishing machine is welded outside the shifting fork sleeve.

3. The crankshaft finishing machine center structure with self-protection function of claim 1, wherein: and the top body is provided with a limiting boss corresponding to the deep groove ball bearing close to the front gland.

4. The crankshaft finishing machine center structure with self-protection function of claim 1, wherein: the position that the carriage top corresponds preceding, back bearing assembly is equipped with the right angle backup pad, the lower surface of right angle backup pad is equipped with the compressed air surge chamber, the top of compressed air surge chamber is equipped with the air inlet that is used for connecting compressed air source, the lower part of compressed air surge chamber evenly is equipped with a plurality of air jets towards preceding bearing assembly or back bearing assembly.