CN211347179U

CN211347179U - Crankshaft hot-mounting flange torque detection device

Info

Publication number: CN211347179U
Application number: CN202020425008.3U
Authority: CN
Inventors: 丛建臣; 孙军; 王磊; 邓军伟
Original assignee: Tianrun Industrial Technology Co ltd; Shandong University of Technology
Current assignee: Tianrun Industrial Technology Co ltd; Shandong University of Technology
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-08-25
Anticipated expiration: 2030-03-27

Abstract

The utility model provides a crankshaft hot-fix flange torque detection device, be equipped with base and main shaft clamp plate, be equipped with T type groove on the base, T type inslot is equipped with T type nut, the base still is equipped with V type support and connecting rod reference column, T type nut cooperation on V type support passes through fastener and the base, the main shaft clamp plate is connected with V type support through compressing tightly the pillar, be equipped with the flange rather than hot-fix on the bent axle, be equipped with the moment of torsion connection dish on the flange, the flange is detachable fixed connection with the moment of torsion connection dish, be equipped with on the moment of torsion connection dish and prevent changeing the connecting hole, still be equipped with the torque multiplier on the moment of torsion connection dish, the moment of torsion connection dish is connected through preventing changeing the. The technical problem that the existing hot-mounted flange is difficult to detect the torque, the phenomenon that a flywheel drives a flange to idle easily occurs, and engine faults are caused is solved. The utility model discloses but wide application in the moment of torsion detection of crankshaft hot flange.

Description

Crankshaft hot-mounting flange torque detection device

Technical Field

The utility model relates to a torque detection device especially relates to a crankshaft hot flange torque detection device.

Background

The crankshaft is one of main parts of the piston engine, and has complex processing technology and high use requirement. The mode of assembly on the bent axle after the flange heating is usually adopted to the part light truck diesel engine in the existing market prevents the relative rotation between the two, for taking into account processing cost and product quality simultaneously in the drawing design, certain machining tolerance scope is all set for with the bent axle diameter of assembling to the flange internal diameter, because flange internal diameter and the bent axle journal of assembling are all in the scope of drawing design in the actual processing, but machining tolerance is inconsistent, the two adopts under the difficult circumstances that detects of flange moment of torsion behind the interference fit, the flywheel drives the phenomenon of flange idle running in the use can appear, cause engine failure, bring unnecessary economic loss for customer and producer.

Disclosure of Invention

The utility model discloses to current hot-packing flange moment of torsion be difficult to detect the easy phenomenon that appears the flywheel and drive the idle rotation of flange, cause engine fault's technical problem, provide a rational in infrastructure, make simple, convenient operation, detect the high crankshaft hot-packing flange moment of torsion detection device of accuracy.

For this, the technical scheme of the utility model, a crankshaft hot-fix flange torque detection device is equipped with locating component, and the bent axle is fixed on locating component, is equipped with rather than the flange of hot-fix on the bent axle, is equipped with the moment of torsion connection dish on the flange, and the flange is detachable fixed connection with the moment of torsion connection dish, is equipped with on the moment of torsion connection dish to prevent changeing the connecting hole, still is equipped with the torque multiplier on the moment of torsion connection dish, and the moment of torsion connection dish is connected through preventing changeing the connecting hole with the torque multiplier, is equipped with the torque wrench who has predetermineeed.

Preferably, the positioning assembly comprises a base and a main shaft pressing plate, a T-shaped groove is formed in the base, a T-shaped nut is arranged in the T-shaped groove, the base is further provided with a V-shaped support and a connecting rod positioning column, the V-shaped support is matched with the T-shaped nut on the base through a fastening piece, and the main shaft pressing plate is connected with the V-shaped support through a pressing support.

Preferably, the compression support column comprises a fixed compression support column and a movable compression support column which are respectively arranged on two sides of the crankshaft on the V-shaped support, the fixed compression support column is detachably and fixedly connected with the V-shaped support, the movable compression support column is connected with the V-shaped support through a rotating shaft, and a U-shaped groove is formed in the joint of the main shaft pressing plate and the compression stud.

Preferably, the main shaft pressure plate is further provided with a compression screw.

Preferably, a connecting rod positioning seat is arranged between the connecting rod positioning column and the base, the connecting rod positioning seat is connected with a T-shaped nut on the base through an inner hexagon screw, and a connecting rod positioning sleeve is arranged between the connecting rod positioning column and the connecting rod positioning seat.

Preferably, the surface of the V-shaped support is a copper-plated surface.

Preferably, the number of the V-shaped supports is two, the two V-shaped supports are respectively arranged at main journals with the same size at the foremost end and the rearmost end of the crankshaft, and the connecting rod positioning column is arranged at the rearmost connecting rod journal.

Preferably, the connecting hole on the torque connecting disc is polygonal.

Preferably, the torque multiplier is fixed on a reaction force arm support, the reaction force arm support is fixedly installed on the base, and the reaction force arm support is parallel to the bottom surface of the reaction force arm.

The utility model has the advantages that,

(1) the crankshaft is fixed on the base through the V-shaped support, the connecting rod positioning column and the main shaft pressing plate, the torque of the torque wrench is preset, and the torque of the hot-assembled flange on the crankshaft can be easily measured by matching the torque connecting disc and the torque multiplier;

(2) in order to prevent the flange from idling, only whether the flange reaches a design value after hot assembly needs to be determined, a specific bearable torque value does not need to be determined, the torque wrench can preset the torque value according to the design value, whether the flange torque meets the design requirement is further determined, the cost is low, the operation is simple, and the measuring efficiency is high;

(3) the joint of the main shaft pressing plate and the compression stud is a U-shaped groove, the movable compression strut is connected with the V-shaped support through a rotating shaft, the movable compression strut can swing around the rotating shaft, and after detection is finished, the movable compression strut can be swung out of the U-shaped groove of the main shaft pressing plate only by loosening a nut on the movable compression strut, so that quick disassembly and assembly are realized, and the detection efficiency can be greatly improved;

(4) be equipped with T type groove on the base, V type support and connecting rod positioning seat pass through T type nut and install on the base, can remove according to different bent axle sizes and change the interval, have improved the commonality of device.

Drawings

FIG. 1 is a schematic view of an assembly structure of an embodiment of the present invention;

FIG. 2 is a schematic view of the A-direction structure of FIG. 1;

fig. 3 is a schematic view of the structure of fig. 1 in the direction B.

The symbols in the drawings illustrate that:

1. a base; a T-shaped nut; 3. a socket head cap screw; a V-shaped support; 5. a straight pin; 6. the support is movably pressed; 7. a main shaft pressing plate; 8. a hexagonal nut; 9. a compression screw; 10. a reaction arm support; 11. fixing the compression support; 12. a connecting rod positioning column; 13. a connecting rod positioning sleeve; 14. tightening the screw; 15. a connecting rod positioning seat; 16. a torque connection disc; 17. a torque multiplier; 18. a torque wrench; 19. and (4) plating the copper surface.

Detailed Description

The present invention will be further described with reference to the following examples.

As shown in figures 1-3, a crankshaft hot flange torque detection device is provided with a positioning assembly, the positioning assembly comprises a base 1 and a main shaft pressing plate 7, the base 1 is a casting piece, firm, reliable, firm and durable, a T-shaped groove is arranged on the base 1, a T-shaped nut 2 is arranged in the T-shaped groove, two V-shaped supports 4 and a connecting rod positioning column 12 are further arranged on the base 1, the two V-shaped supports 4 are respectively arranged at main shaft necks with the same size as the front end and the rear end of a crankshaft, the connecting rod positioning column 12 is arranged at the last connecting rod journal, the V-shaped support 4 is connected with the T-shaped nut 2 on the base 1 through an inner hexagon screw 3, compression supports are arranged on the two sides of the crankshaft on the V-shaped support 4, one side of the V-shaped support is a fixed compression support 11 connected with the V-shaped support 4 through a thread, the other side is a movable compression, the main shaft pressing plate 7 is provided with a U-shaped groove at the joint with the compression stud, the movable compression strut 6 can swing around the straight pin 5, and after detection is completed, the movable compression strut can be swung out of the U-shaped groove of the main shaft pressing plate only by loosening a nut on the movable compression strut, so that quick disassembly and assembly are realized, and the detection efficiency can be greatly improved. The main shaft pressing plate 7 is connected with the V-shaped supports 4 through pressing pillars to realize the pressing of the crankshaft main shaft, a pressing screw 9 is further arranged on the main shaft pressing plate 7 and used for assisting in pressing the crankshaft main shaft, and in order to ensure that the crankshaft journal is not damaged during detection, copper plating is carried out on the surfaces of the two V-shaped supports 4 to form copper plating surfaces 19; be equipped with connecting rod positioning seat 15 on the base 1, connecting rod positioning seat 15 is connected with T type nut 2 on the base 1 through hexagon socket head cap screw 3, is equipped with connecting rod position sleeve 13 in the connecting rod positioning seat 15, and connecting rod position sleeve 13 is connected with connecting rod reference column 12 for protection connecting rod reference column 12, extension fixture life, connecting rod reference column 12 support are in bent axle connecting rod journal department, realize bent axle angular orientation location.

The flange adopts the mode of hot dress to install on the bent axle earlier, place the bent axle on V type support 4 again, make main shaft clamp plate 7 compress tightly the bent axle on V type support 4 through the adjustment hold-down stud, the flange end adopts high strength bolt fastening connection torque connection pad 16, torque connection pad 16 prevents through the square at center that the commentaries on classics connecting hole is connected with torque multiplier 17, can avoid the relative rotation of the two, guarantee the accurate transmission of moment of torsion, facilitate processing installation again, torque multiplier 17's the reaction arm of force is fixed on reaction arm of force support 10, reaction arm of force support 10 passes through holding screw 14 fixed mounting on base 1, reaction arm of force support 10 is parallel with torque multiplier 17's reaction arm of force bottom surface.

The torque wrench 18 is a high-precision torque wrench and is installed on the torque multiplier 17, the high-precision torque wrench sets an input torque value in advance according to a drawing design value to apply a certain torque to the torque multiplier 17, the torque multiplier 17 enables the set small torque input from the torque wrench 18 to be amplified in a linear multiple and then output, the torque output by the torque multiplier 17 is applied to a crankshaft flange through the torque connecting disc 16 until a clicking sound is heard by the torque wrench 18, torque detection is completed, and next flange torque value detection is conducted. The unloading of the torque from the torque multiplier 17 indicates that the crankshaft flange is rotating.

Before the device is used, the T-shaped nut 2 is fastened and installed after the position of the T-shaped nut on the base 1 is adjusted according to the length of the crankshaft, the flange is detected in the opposite direction of the crankshaft rotating in the engine during detection, and the device is used for detecting to ensure that a finished crankshaft after installation of the flange can meet or exceed the theoretical torque during design quickly and effectively.

This device can satisfy the flange moment of torsion detection of the finished product bent axle of the engine hot assembly flange of the different models of present host computer factory design, the utility model discloses simple structure, convenient operation has reduced check out test set purchasing cost, can effectively avoid the idling phenomenon that the flange moment of torsion does not reach the design value and cause behind the hot dress, very big avoided the finished product trouble, improved the finished product reliability.

However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. The utility model provides a crankshaft hot-fix flange torque detection device, its characterized in that, it is equipped with locating component, and the bent axle is fixed locating component is last, be equipped with the flange rather than hot-fix on the bent axle, be equipped with the torque connection pad on the flange, the flange with the torque connection pad is detachable fixed connection, be equipped with on the torque connection pad and prevent changeing the connecting hole, still be equipped with the torque multiplier on the torque connection pad, the torque connection pad with the torque multiplier is connected through preventing changeing the connecting hole, be equipped with the torque wrench who has predetermine the moment of torsion on the torque multiplier.

2. The crankshaft hot flange torque detection device according to claim 1, wherein the positioning assembly comprises a base and a spindle pressing plate, a T-shaped groove is formed in the base, a T-shaped nut is arranged in the T-shaped groove, the base is further provided with a V-shaped support and a connecting rod positioning column, the V-shaped support is matched with the T-shaped nut on the base through a fastening piece, and the spindle pressing plate is connected with the V-shaped support through a compression support.

3. The crankshaft hot flange torque detection device according to claim 2, wherein the compression pillars comprise fixed compression pillars and movable compression pillars, the fixed compression pillars and the movable compression pillars are respectively disposed on two sides of the crankshaft on the V-shaped support, the fixed compression pillars are detachably and fixedly connected with the V-shaped support, and the movable compression pillars are connected with the V-shaped support through a rotating shaft.

4. The crankshaft shrink flange torque detection device of claim 2, wherein a compression screw is further provided on the main shaft pressure plate.

5. The crankshaft hot flange torque detection device according to claim 2, wherein a connecting rod positioning seat is disposed between the connecting rod positioning column and the base, the connecting rod positioning seat is connected to a T-shaped nut on the base through a socket head cap screw, and a connecting rod positioning sleeve is disposed between the connecting rod positioning column and the connecting rod positioning seat.

6. The crankshaft shrink flange torque detection device of claim 2, wherein the V-shaped carrier surface is a copper plated surface.

7. The crankshaft shrink-fit flange torque detection device according to claim 2, wherein the number of the V-shaped supports is two, the two V-shaped supports are respectively disposed at main journals with the same size at the foremost end and the rearmost end of the crankshaft, and the connecting rod positioning column is disposed at the rearmost connecting rod journal.

8. The crankshaft shrink-fit flange torque detection device according to claim 2, wherein the anti-rotation connection holes on the torque connection disc are polygonal.

9. The crankshaft hot flange torque detection device according to claim 2, wherein the torque multiplier is fixed on a reaction arm support, the reaction arm support is fixedly mounted on the base, and the reaction arm support is parallel to the bottom surface of the reaction arm.