CN213902207U

CN213902207U - Main journal tapering detection device of bent axle

Info

Publication number: CN213902207U
Application number: CN202023176161.6U
Authority: CN
Inventors: 贺永明; 赵吴博
Original assignee: Chongqing Dawang Crankshaft Machinery Manufacturing Co ltd
Current assignee: Chongqing Dawang Crankshaft Machinery Manufacturing Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-06
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to a main journal tapering detection device of bent axle, including examining test table, examine test table and go up fixed mounting and be used for carrying out the V type supporting shoe that supports to two main journals of bent axle, examine test table and still install the positioning mechanism who is used for carrying out the centering location to the bent axle, examine test table and install two detection cylinders, it is located the outside of V type supporting shoe to detect the cylinder, the piston rod that detects the cylinder has the supporting shoe through mounting panel fixed mounting, fixed mounting has the stand on the supporting shoe, the upper end fixed mounting of stand has laser range finding sensor. The utility model has the advantages of simple structure, convenient use and high efficiency.

Description

Main journal tapering detection device of bent axle

Technical Field

The utility model relates to a bent axle technical field especially relates to a main journal tapering detection device of bent axle.

Background

The crankshaft is the most important component in the engine. It takes the force from the connecting rod and converts it into torque to be output by the crankshaft and drive other accessories on the engine. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, gas inertia force of periodic variation and reciprocating inertia force, so that the crankshaft is subjected to the action of bending and twisting load. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the surface of the journal needs to be wear-resistant, work uniformly and balance well.

After the production and processing of the crankshaft are finished, in order to assemble in the later period, the taper of the main journal of the crankshaft needs to be detected, the detection is complex at present, manual detection is carried out, the efficiency is low, and the precision is low.

Disclosure of Invention

To the not enough of above-mentioned prior art, the technical problem that this patent application will solve provides a simple structure, facilitates the use, efficient main journal tapering detection device of bent axle.

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

the utility model provides a main journal tapering detection device of bent axle, is including examining test table, examine test table and go up fixed mounting and be used for carrying out the V type supporting shoe that supports to two main journals of bent axle, examine test table and still install the positioning mechanism who is used for carrying out the centering location to the bent axle, examine test table and install two detection cylinders, the detection cylinder is located the outside of V type supporting shoe, the piston rod that detects the cylinder has the supporting shoe through mounting panel fixed mounting, fixed mounting has the stand on the supporting shoe, the upper end fixed mounting of stand has laser range finding sensor.

The detection plate is fixedly provided with a guide rail, the guide rail is arranged on the outer side of the V-shaped supporting block, and the lower end of the supporting block is provided with a sliding groove in sliding fit with the guide rail.

The positioning mechanism comprises a detection plate, a positioning mechanism wrapping block and a lifting cylinder, wherein the positioning mechanism wrapping block is fixedly arranged on the detection plate, the lifting cylinder is positioned on the outer side of the guide rail, the upper end of a piston rod of the lifting cylinder is fixedly connected with the detection plate through a box body, and a moving mechanism for driving the positioning plate to move is arranged in the box body.

Wherein, moving mechanism installs the lead screw in the box including rotating, the outside fixed mounting of box has the motor, the output shaft of motor passes the box with the one end fixed connection of lead screw, the lower extreme of box is followed the length direction of lead screw is provided with the spout, the lead screw is double-end lead screw, the spiral opposite direction from the centre to both ends of lead screw, connect the cooperation soon on the lead screw and have two nuts, the lower extreme fixed mounting of nut has the connecting block of sliding fit in the spout, the lower extreme of connecting block with locating plate fixed connection.

Wherein, the detection cylinder and the lifting cylinder are both double-acting cylinders.

To sum up, the utility model has the advantages of simple structure, facilitate the use, it is efficient.

Drawings

Fig. 1 is a schematic structural view of a device for detecting taper of a main journal of a crankshaft.

Fig. 2 is a front view of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "upper, lower" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

As shown in fig. 1-2, a device for detecting taper of main journals of crankshafts comprises a detection table 1, wherein a V-shaped support block 3 for supporting two main journals of a crankshaft 2 is fixedly installed on the detection table, a positioning mechanism for centering and positioning the crankshaft is further installed on the detection table, two detection cylinders 4 are installed on the detection table, the detection cylinders are located on the outer sides of the V-shaped support blocks, support blocks 6 are fixedly installed on piston rods of the detection cylinders through mounting plates 5, stand columns 7 are fixedly installed on the support blocks, and laser ranging sensors 8 are fixedly installed at the upper ends of the stand columns.

Therefore, the main journal of the crankshaft is placed on the V-shaped supporting block, the crankshaft is centered and positioned by the positioning mechanism, then the laser ranging sensor is driven by the detection cylinder to move, and the taper of the conical surface of the main journal of the crankshaft is detected by the laser ranging sensor.

The detection plate is fixedly provided with a guide rail 9, the guide rail is arranged on the outer side of the V-shaped supporting block, and the lower end of the supporting block is provided with a sliding groove in sliding fit with the guide rail. The motion of the laser ranging sensor is limited, and the reliability of detection is improved.

The positioning mechanism comprises two lifting cylinders 11 fixedly mounted on the detection plate, the lifting cylinders are located on the outer sides of the guide rails, the upper ends of piston rods of the lifting cylinders are fixedly connected through a box body 12, and a moving mechanism used for driving a positioning plate 13 to move is mounted in the box body. The lifting cylinder drives the box body to move, and the crankshaft is conveniently taken and placed.

Wherein, moving mechanism installs lead screw 14 in the box including rotating, the outside fixed mounting of box has motor 15, the output shaft of motor passes the box with the one end fixed connection of lead screw, the lower extreme of box is followed the length direction of lead screw is provided with the spout, the lead screw is double-end lead screw, the spiral to opposite from the centre to both ends of lead screw, connect the cooperation soon on the lead screw to have two nuts, the lower extreme fixed mounting of nut has the connecting block of sliding fit in the spout, the lower extreme of connecting block with locating plate fixed connection. The motor drives the lead screw to rotate, and the lead screw drives the nut block to move towards the direction close to or away from each other, so as to drive the positioning plate to move to position the crankshaft.

Wherein, the detection cylinder and the lifting cylinder are both double-acting cylinders. Is convenient to use.

Specifically, the device also comprises a PLC (programmable logic controller), S7-200, wherein the two laser ranging sensors are used for detecting the taper of the main journal of the crankshaft, the laser ranging sensors are connected with a display screen through a signal transmitting end and a signal receiving end, a data processing unit and a communication unit are arranged in the display screen and used for outputting detection data on the display screen, and an operator can obtain whether the taper is qualified or not through comparing the detected data with standard data.

The principle is as follows:

the main journal of the crankshaft is placed on the V-shaped supporting block, the crankshaft is centered and positioned by the positioning mechanism, then the laser ranging sensor is driven to move by the detection cylinder, and the taper of the conical surface of the main journal of the crankshaft is detected by the laser ranging sensor.

Finally, it should be noted that: various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, to the extent that such modifications and variations of the present invention fall within the scope of the present claims and their equivalents, it is intended that the present invention encompass such modifications and variations as well.

Claims

1. The utility model provides a main journal tapering detection device of bent axle, its characterized in that, is including examining the test table, examine on the test table fixed mounting have be used for carrying out the V type supporting shoe that supports to two main journals of bent axle, examine and still install the positioning mechanism who is used for carrying out the centering location to the bent axle on the test table, examine and install two detection cylinders on the test table, the detection cylinder is located the outside of V type supporting shoe, the piston rod that detects the cylinder has the supporting shoe through mounting panel fixed mounting, fixed mounting has the stand on the supporting shoe, the upper end fixed mounting of stand has laser range finding sensor.

2. The device for detecting the taper of the main journal of the crankshaft as claimed in claim 1, wherein a guide rail is further fixedly mounted on the detection table, the guide rail is disposed outside the V-shaped support block, and a sliding groove slidably engaged with the guide rail is formed at a lower end of the support block.

3. The device for detecting the taper of the main journal of the crankshaft as claimed in claim 1, wherein the positioning mechanism comprises two lifting cylinders fixedly mounted on the detection plate, the lifting cylinders are located outside the guide rails, the upper ends of piston rods of the lifting cylinders are fixedly connected through a box body, and a moving mechanism for driving the positioning plate to move is mounted in the box body.

4. The device for detecting the taper of the main journal of the crankshaft as claimed in claim 3, wherein the moving mechanism comprises a lead screw rotatably mounted in a box body, a motor is fixedly mounted on the outer side of the box body, an output shaft of the motor penetrates through the box body and is fixedly connected with one end of the lead screw, a sliding groove is formed in the lower end of the box body along the length direction of the lead screw, the lead screw is a double-headed lead screw, the rotation directions of the lead screw from the middle to the two ends are opposite, two nuts are screwed on the lead screw and matched, a connecting block in the sliding groove is fixedly mounted at the lower end of each nut, and the lower end of the connecting block is fixedly connected with the positioning plate.

5. The apparatus as claimed in claim 1, wherein the detection cylinder and the lifting cylinder are both double-acting cylinders.