CN219152451U

CN219152451U - Radial polishing device for eccentric differential compensation of crankshaft of air compressor

Info

Publication number: CN219152451U
Application number: CN202223504134.6U
Authority: CN
Inventors: 周启仁
Original assignee: Yancheng Lianfeng Electromechanical Co ltd
Current assignee: Yancheng Lianfeng Electromechanical Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-09
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses an eccentric differential compensation radial polishing device for a crankshaft of an air compressor, which comprises a base, a rotating mechanism and a polishing mechanism, wherein the polishing mechanism comprises a linear module, a connecting table, a telescopic mechanism and a belt type polishing machine, the belt type polishing machine comprises a polishing support, a polishing motor and a polishing belt, one end of the polishing support is hinged on the connecting table, two ends of the telescopic mechanism are respectively hinged with the connecting table and the polishing support, the polishing belt is rotatably arranged on one side of the polishing support through three driving wheels, the three driving wheels are arranged in a triangle shape, and an output shaft of the polishing motor is connected with any driving wheel. Through installing telescopic machanism between belt-type polishing machine and connection platform, when belt-type polishing machine along bent axle axial displacement, change belt-type polishing machine's the position of impressing through telescopic machanism to realize the automatic polishing to the bent axle, improved polishing efficiency, reduced workman's intensity of labour, avoided polishing dust to workman's influence, ensured that the workman is healthy.

Description

Radial polishing device for eccentric differential compensation of crankshaft of air compressor

Technical Field

The utility model relates to the technical field of crankshaft machining, in particular to an eccentric differential compensation radial polishing device for an air compressor crankshaft.

Background

The crankshaft is the main moving part in the air compressor, and the machining process mainly comprises the steps of blank casting, forging, rough and finish turning, strengthening treatment and the like. Burrs and turning marks exist on the surface of the crankshaft after cutting, and the service life of the air compressor is greatly reduced if the defects are not eliminated before the crankshaft is assembled.

In order to improve the quality of the crankshaft, it is necessary to polish the radial direction of the crankshaft. The polishing can improve and control the surface roughness of the crankshaft journal, reduce the friction of the crankshaft journal, thereby generating larger power and prolonging the service life of the air compressor.

The existing treatment method is that two ends of a crankshaft are fixed on chucks, the driving mechanism drives the chucks to rotate so that the crankshaft rotates, and then a polishing mechanism is manually driven to contact with the crankshaft to polish the crankshaft. After finishing the polishing of a journal, it is necessary to manually move to the journal downward. Not only is time and labor wasted, but also the polishing efficiency is low; and the worker continues to operate the polishing mechanism, dust generated by polishing may also cause occupational diseases.

Disclosure of Invention

The utility model aims to provide a radial polishing device for eccentric differential compensation of an air compressor crankshaft, which aims to solve the technical problems in the background art, and the purpose of the utility model is realized by the following technical scheme:

the eccentric differential compensation radial polishing device for the crankshaft of the air compressor comprises a base, a rotating mechanism and a polishing mechanism, wherein the rotating mechanism comprises a main shaft box, a guide rail and a tailstock, the guide rail is arranged on the base, the main shaft box is fixed at one end of the guide rail, and the tailstock is slidably arranged on the guide rail through a sliding block; the polishing mechanism comprises a linear module, a connecting table, a telescopic mechanism and a belt polishing machine, wherein the linear module is arranged on the base in parallel with the guide rail, and the connecting table is arranged on the linear module; the belt polishing machine comprises a polishing support, a polishing motor and a polishing belt, one end of the polishing support is hinged to the connecting table, two ends of the telescopic mechanism are respectively hinged to the connecting table and the polishing support, the polishing belt is rotatably installed on one side of the polishing support through three driving wheels, the three driving wheels are arranged in a triangular mode, the polishing motor is fixed to the polishing support, and an output shaft of the polishing motor is connected with any driving wheel.

Further, the main shaft box comprises a main shaft, a rotating motor, a rotating bracket and a three-jaw chuck, wherein the main shaft is rotatably arranged on the rotating bracket, an output shaft of the rotating motor is fixedly connected with the main shaft, and the three-jaw chuck is fixed at one end, close to a tailstock, of the main shaft.

Further, the polishing support comprises a long rod and a short rod, one end of the long rod is hinged with the connecting table, and the short rod is vertically fixed at one end of the long rod far away from the connecting table.

Further, three driving wheels are respectively installed at the middle of the long bar and at both ends of the short bar.

Further, a guide groove is formed in the middle of the long rod, a spring is installed in the guide groove, the driving wheel is slidably installed in the guide groove, and the driving wheel is located on one side, close to the connecting table, of the spring.

Further, the telescopic mechanism is an electric push rod.

Further, the polishing belt is an alumina polishing belt.

The technical scheme provided by the embodiment of the application has at least the following technical effects or advantages:

through installing telescopic machanism between belt-type polishing machine and connection platform, when belt-type polishing machine along bent axle axial displacement, change belt-type polishing machine's the position of impressing through telescopic machanism to realize the automatic polishing to the bent axle, improved polishing efficiency, reduced workman's intensity of labour, avoided polishing dust to workman's influence, ensured that the workman is healthy.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a front view of an embodiment of the present application;

FIG. 4 is a right side view of an embodiment of the present application;

FIG. 5 is a schematic view of a polishing mechanism according to an embodiment of the present application;

fig. 6 is a partial enlarged view of fig. 5.

The symbols in the drawings are: 1. a base; 2. a spindle box; 21. a main shaft; 22. a rotating electric machine; 23 rotating the bracket; 24. a three-jaw chuck; 3. a guide rail; 31. a slide block; 4. a tailstock; 41. a hand wheel; 5. a linear module; 6. a connection station; 7. a telescoping mechanism; 8. a belt polisher; 81. polishing the support; 811. a long rod; 812. a short bar; 813. a guide groove; 814. a spring; 815. a plug pin; 82. polishing a motor; 83. a driving wheel; 84. a polishing belt; 9. and (3) a crankshaft.

Detailed Description

In order that the manner in which the above recited features of the present utility model can be better understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The eccentric differential compensation radial polishing device for the air compressor crankshaft as shown in figures 1-6 comprises a base 1, a rotating mechanism and a polishing mechanism. A rotating mechanism for clamping and rotating the crankshaft 9 and a polishing mechanism for polishing the crankshaft by moving in the axial direction of the crankshaft 9 are installed in parallel on the base 1.

As shown in fig. 1, 3 and 4, the rotating mechanism includes a headstock 2, a guide rail 3 and a tailstock 4, the guide rail 3 is fixed to the base 1 by bolts, and the headstock 2 is fixed to the left end of the guide rail 3. The spindle box 2 comprises a spindle 21, a rotating motor 22, a rotating bracket 23 and a three-jaw chuck 24, wherein the rotating bracket 23 is a rectangular shell, two ends of the spindle 21 are rotatably arranged on the rotating bracket 23 through bearing seats, and the rotating motor 22 is fixed at the upper end of the rotating bracket 23 so as to avoid interference with a polishing mechanism. The left end of the main shaft 21 is fixedly provided with a belt pulley, the output shaft of the rotating motor 22 is fixedly provided with a belt pulley, and the two belt pulleys are connected through a belt, so that the main shaft is driven to rotate. A three-jaw chuck 24 is fixed to the right end of the main shaft 21. The tailstock 4 is slidably mounted on the guide rail 3 through a sliding block 31, the tailstock 4 is a conical ejector rod at the top, the ejector rod is mounted on an adjusting seat capable of moving left and right, and the adjusting seat can be driven to move left and right through a hand wheel 41. The slide block 31 and the adjusting seat are provided with locking devices, so that the tailstock 4 is prevented from moving in the working process.

When the crank shaft 9 is used, the left end of the crank shaft 9 is clamped through the three-jaw chuck 24, the sliding block 31 is moved to enable the ejector rod to be in contact with the right end of the crank shaft 9, the sliding block is locked, the ejector rod is continuously pushed to the left through the hand wheel 41, and the adjusting seat is locked, so that the tailstock 4 plays a supporting role on the crank shaft 9. The structure and principle of the rotating mechanism are the same as the rotating clamping structure of the machine tool, and are not described in detail here.

As shown in fig. 1 to 4, the polishing mechanism includes a linear module 5, a connection table 6, a telescopic mechanism 7, and a belt polisher 8, and the linear module 5 is mounted on the base 1 parallel to the guide rail 3. The linear module 5 is a screw linear module, and the rectangular connecting table 6 is arranged on a sliding block of the screw linear module through bolts.

As shown in fig. 5 and 6, the belt polisher 8 includes a polishing support 81, a polishing motor 82, a driving wheel 83, and a polishing belt 84. The polishing bracket 81 is formed by connecting a long rod 811 and a short rod 812, the left end of the long rod 811 is hinged to the rear side of the upper end of the connecting table 6 through a rotating shaft, and the short rod 812 is vertically fixed to the right end of the long rod 811 to form an L-shaped structure, so that the polishing bracket 81 is prevented from interfering with the crankshaft 9.

The rotation shaft of the three driving wheels 83 is installed on one side of the polishing support 81 through bearings, the three driving wheels 83 are respectively located at two ends of the short rod 812 and the middle of the long rod 811, and the polishing belt 84 is wound between the three driving wheels 83, so that the polishing belt 84 is triangular, and the lower side of the polishing belt 84 is convenient to be attached to the crankshaft 9. The polishing motor 84 is installed in the upper end of quarter butt 812, and the output shaft of polishing motor 84 is connected with the drive wheel 83 of quarter butt 812 upper end, and polishing motor 84 rotates and drives polishing area 84 rotation, realizes polishing action. Preferably, the drive wheel 83 is provided with a flange on both sides to prevent the polishing belt 84 from slipping off. The polishing belt 84 is an alumina abrasive belt.

As shown in fig. 6, the long rod 811 has a hollow structure, a guide groove 813 is provided in the middle of the long rod 811, a bolt 815 penetrating through the right end of the guide groove 813 is installed, the rotation shaft of the driving wheel 83 on the long rod 811 is slidably installed in the guide groove 813, and a spring 814 is installed between the rotation shaft of the driving wheel 83 and the bolt 815. When the polishing belt 84 is stressed, the driving wheel 83 presses the spring 814 to shrink, so that buffering of the polishing belt 84 is achieved, and damage to the polishing belt 84 is avoided.

The telescopic mechanism 7 is an electric push rod, two ends of the electric push rod are respectively hinged with the connecting table 6 and the middle lower part of the long rod 811, when the electric push rod stretches, the polishing support 81 moves upwards, the polishing belt 84 is separated from the crankshaft 9, and when the electric push rod contracts, the polishing support 81 moves downwards, and the polishing belt 84 is attached to the crankshaft 9.

When the belt polishing machine is used, the crankshaft 9 is arranged on the rotating mechanism, the belt polishing machine 8 is moved to one end of the crankshaft 9, the belt polishing machine 8 is started, the electric push rod is regulated to enable the polishing belt 84 to be abutted against the crankshaft 9, and the linear module 5 drives the belt polishing machine 8 to slide along the surface of the crankshaft 9, so that radial polishing of the crankshaft 9 is realized.

When moving to the connecting rod journal, the electric push rod stretches to enable the belt polishing machine 8 to ascend, and polishing at the crankshaft journal is achieved through the action of the spring. Here, the switching position of the crank journal can be marked by installing a photoelectric sensor so as to realize the control of the electric push rod.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an eccentric poor radial burnishing device of mending of air compressor machine bent axle, includes base, rotary mechanism and polishing mechanism, rotary mechanism includes headstock, guide rail and tailstock, the guide rail is installed on the base, the headstock is fixed the one end of guide rail, the tailstock passes through slider slidable mounting on the guide rail, its characterized in that: the polishing mechanism comprises a linear module, a connecting table, a telescopic mechanism and a belt polishing machine, wherein the linear module is arranged on the base in parallel to the guide rail, and the connecting table is arranged on the linear module; the belt polishing machine comprises a polishing support, a polishing motor and a polishing belt, one end of the polishing support is hinged to the connecting table, two ends of the telescopic mechanism are hinged to the connecting table and the polishing support respectively, the polishing belt is rotatably installed on one side of the polishing support through three driving wheels, the three driving wheels are arranged in a triangular mode, the polishing motor is fixed to the polishing support, and an output shaft of the polishing motor is connected with any one driving wheel.

2. The device for polishing the eccentric differential radial compensation of the crankshaft of the air compressor according to claim 1, wherein the spindle box comprises a spindle, a rotating motor, a rotating bracket and a three-jaw chuck, the spindle is rotatably arranged on the rotating bracket, an output shaft of the rotating motor is fixedly connected with the spindle, and the three-jaw chuck is fixed at one end, close to the tailstock, of the spindle.

3. The device for polishing the eccentric differential complement radial direction of the crankshaft of an air compressor according to claim 1, wherein the polishing support comprises a long rod and a short rod, one end of the long rod is hinged with the connecting table, and the short rod is vertically fixed at one end of the long rod far away from the connecting table.

4. The device for polishing the eccentric differential complement radial direction of the crankshaft of an air compressor according to claim 3, wherein three driving wheels are respectively arranged in the middle of the long rod and at two ends of the short rod.

5. The device for polishing the eccentric differential compensation radial direction of the crankshaft of the air compressor according to claim 4, wherein a guide groove is formed in the middle of the long rod, a spring is installed in the guide groove, the driving wheel is slidably installed in the guide groove, and the driving wheel is located on one side, close to the connecting table, of the spring.

6. The device for polishing the eccentric differential compensation radial direction of a crankshaft of an air compressor according to claim 1, wherein the telescopic mechanism is an electric push rod.

7. The air compressor crankshaft eccentric differential radial polishing device of claim 1, wherein the polishing belt is an alumina abrasive belt.