CN219413237U

CN219413237U - Positioning device for crankshaft connecting piece

Info

Publication number: CN219413237U
Application number: CN202320765549.4U
Authority: CN
Inventors: 袁新宇; 冯冬
Original assignee: WUHU RUIHE ELECTROMECHANICAL CO LTD
Current assignee: WUHU RUIHE ELECTROMECHANICAL CO LTD
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-07-25
Anticipated expiration: 2033-04-10

Abstract

The utility model discloses a positioning device of a crankshaft connecting piece, which comprises a crankshaft connecting piece body and a flywheel, wherein a flange is fixed at one end of the crankshaft connecting piece body, which is connected with the flywheel, corresponding mounting holes are formed in the upper side and the lower side of the flywheel and the flange, fixing bolts are inserted into the corresponding mounting holes in the flywheel and the flange, one end of each fixing bolt, which is positioned at the outer side of the flange, is connected with a nut through a threaded structure, reinforcing sheets are sleeved at the outer side of the connecting position of each fixing bolt and the nut, clamping rods are fixed at the upper end and the lower end of the inner side of each reinforcing sheet, clamping grooves are formed in the upper side and the lower side of the connecting position of the flange and the fixing bolts, and elastic gaskets are fixedly bonded on the inner wall of one side, which is far away from each clamping groove. The positioning device of the crankshaft connecting piece can play a role in reinforcing the bolts on the flange plate so as to improve the connection firmness of the flange plate and the flywheel, thereby ensuring the stability of the crankshaft during positioning.

Description

Positioning device for crankshaft connecting piece

Technical Field

The utility model relates to the technical field of crankshafts, in particular to a positioning device of a crankshaft connecting piece.

Background

The crankshaft is the most important component in an engine. The engine is used for bearing the force transmitted by the connecting rod, converting the force into torque, outputting the torque through the crankshaft and driving other accessories on the engine to work. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, periodically-changed gas inertia force and reciprocating inertia force, so that the crankshaft is subjected to bending torsion load. Therefore, the crankshaft is required to have enough strength and rigidity, and the journal surface needs to be wear-resistant, uniform in work and good in balance.

At present, the rear end of the crankshaft is arranged on the flywheel through the flange plate in the process of installation, and the nuts are screwed down again by utilizing the positioning of the two fixing bolts, but as the crankshaft bears great torque and bending moment in the rotary motion, the bolts on the flange plate are easy to generate certain wire withdrawal phenomenon after being influenced by acting force for a long time, so that the connection firmness of the flange plate and the flywheel can be reduced, and the stability of the crankshaft in positioning is influenced.

Disclosure of Invention

The utility model aims to provide a positioning device for a crankshaft connecting piece, which solves the problem that when a crankshaft is installed on a flywheel through a flange in the installation process, bolts on the flange are easy to take out a certain wire phenomenon after being influenced by acting force for a long time, so that the connection firmness of the flange and the flywheel is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a positioner of bent axle connecting piece, includes bent axle connecting piece body and flywheel, the one end that bent axle connecting piece body and flywheel are connected is fixed with the flange, both sides all are equipped with corresponding mounting hole about flywheel and the flange, it has fixing bolt to alternate in the corresponding mounting hole on flywheel and the flange, fixing bolt is located the one end in the flange outside and is connected with the nut through the helicitic texture, just fixing bolt and the junction outside cover of nut are equipped with the reinforcement piece, the inboard upper and lower both ends of reinforcement piece all are fixed with the draw-in lever, just the upper and lower both sides of flange and fixing bolt junction all are equipped with the draw-in groove, the bonding is fixed with the elastic pad on the one side inner wall that the draw-in groove kept away from mutually.

Preferably, the outer end of the clamping rod is of a barb structure, and a notch which is matched with the barb structure at the outer end of the clamping rod is arranged on the inner wall of one side of the clamping groove opposite to the elastic pad.

Preferably, a connecting block is fixed on one side corresponding to the clamping rod, a fixed shaft is inserted in the connecting block, and an inserting hole which is matched with the fixed shaft in structure is arranged at the position, corresponding to the connecting block, of the outer side of the flange.

Preferably, a first magnet block is fixed at the inner end of the fixed shaft, and a second magnet block is arranged on the bottom inner wall of the jack.

Preferably, a plurality of elastic clamping blocks are fixedly arranged on the outer wall of the inner end of the fixed shaft in a surrounding manner, and clamping grooves matched with the elastic clamping block structures are formed in the side inner walls of the insertion holes.

Preferably, a gasket is fixed on the inner side of the reinforcing sheet, and the gasket is mutually attached to the outer side of the nut.

Compared with the prior art, the utility model has the beneficial effects that: the positioning device of the crankshaft connecting piece can play a role in reinforcing the bolts on the flange plate so as to improve the connection firmness of the flange plate and the flywheel, thereby ensuring the stability of the crankshaft during positioning. When the crankshaft connecting piece body of the device is connected with the flywheel through the flange, the flange and the flywheel can be connected and fixed through the fixing bolts and the nuts, and the reinforcing piece arranged on the outer side of the joint of the bolts and the nuts can drive the clamping rod to be clamped into the corresponding clamping groove, so that a good reinforcing effect is achieved when the nuts are fixed on the bolts, and the flange is connected with the flywheel more firmly.

Drawings

FIG. 1 is a schematic diagram of a positioning device for a crankshaft connecting piece according to the present utility model;

FIG. 2 is a schematic view of a structure of a reinforcing plate and flange connection of a positioning device for a crankshaft connecting piece according to the present utility model;

fig. 3 is an enlarged schematic view of the positioning device of the crankshaft connecting piece in fig. 2.

In the figure: 1. a crankshaft connecting member body; 2. a flywheel; 3. a flange; 4. a fixing bolt; 5. a nut; 6. a reinforcing sheet; 7. a clamping rod; 8. a clamping groove; 9. an elastic pad; 10. a gasket; 11. a fixed shaft; 12. a connecting block; 13. a jack; 14. a first magnet block; 15. a second magnet block; 16. and an elastic clamping block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1-3, the present utility model provides a technical solution: a positioning device of a crankshaft connecting piece comprises a crankshaft connecting piece body 1 and a flywheel 2, wherein a flange 3 is fixed at one end of the crankshaft connecting piece body 1 connected with the flywheel 2, corresponding mounting holes are formed in the upper side and the lower side of the flywheel 2 and the flange 3, a fixing bolt 4 is inserted in each corresponding mounting hole in the flywheel 2 and the flange 3, one end of the fixing bolt 4, which is positioned at the outer side of the flange 3, is connected with a nut 5 through a threaded structure, a reinforcing piece 6 is sleeved at the outer side of the connecting part of the fixing bolt 4 and the nut 5, the reinforcing piece 6 is of an annular sheet-shaped structure, clamping rods 7 are welded and fixed at the upper end and the lower end of the inner side of the reinforcing piece 6, clamping grooves 8 are formed in the upper side and the lower side of the connecting part of the flange 3 and the fixing bolt 4, an elastic cushion 9 is adhered and fixed on the inner wall of one side, which is far away from the clamping grooves 8, the elastic cushion 9 is made of elastic rubber material, the fixing bolt 4 can be inserted into the corresponding mounting hole on the flange 3 and the flywheel 2 and fixed by the nut 5, the reinforcing sheet 6 can be sleeved outside the joint of the fixing bolt 4 and the nut 5 to ensure that the clamping rod 7 is clamped into the clamping groove 8, and the elastic pad 9 can be synchronously extruded to stabilize the clamping rod 7 in the clamping process, so that the reinforcing sheet 6 can play a role in reinforcing the nut 5, the firmness of the connection of the flange 3 and the flywheel 2 is improved, the nut 5 is prevented from being influenced by the acting force caused by the crankshaft connecting piece body 1 for a long time, a certain wire withdrawal phenomenon is easy to occur on the fixing bolt 4, the stability of the crankshaft connecting piece body 1 during positioning is further ensured, the outer end of the clamping rod 7 is of a barb structure, a notch matched with the barb structure at the outer end of the clamping rod 7 is arranged on the inner wall of one side of the clamping groove 8 opposite to the elastic pad 9, the notch on the inner wall of the clamping groove 8 is positioned at the inner end, the clamping rod 7 with the structure can extend into the clamping groove 8 through the extrusion elastic pad 9 until the clamping rod 7 drives the barb on the inner end to be clamped in the notch on the inner wall of the clamping groove 8, so that the clamping rod 7 can be more firmly inserted into the clamping groove 8, the reinforcing effect of the reinforcing sheet 6 on the nut 5 is ensured, the connecting block 12 is fixedly welded on one side corresponding to the clamping rod 7, the connecting block 12 is positioned at one end outside the clamping groove 8, the fixed shaft 11 is inserted into the connecting block 12, the jack 13 which is matched with the fixed shaft 11 in structure is arranged at the outer side of the flange 3 and corresponds to the connecting block 12, the first magnet block 14 is fixed at the inner end of the fixed shaft 11, the second magnet block 15 is arranged on the bottom inner wall of the jack 13, the fixed shaft 11 with the structure can be inserted into the jack 13 through the connecting block 12, the first magnet block 14 and the second magnet block 15 are utilized to absorb each other through magnetic acting force, so that the firmness of the fixed shaft 11 when the fixed shaft 11 is inserted into the clamping groove 8 is further improved, the reinforcing effect of the reinforcing piece 6 on the nut 5 is better, a plurality of elastic clamping blocks 16 are fixedly arranged on the outer wall of the inner end of the fixed shaft 11 in a surrounding mode, clamping grooves matched with the elastic clamping blocks 16 in structure are formed in the side inner wall of the insertion hole 13, the elastic clamping blocks 16 can be synchronously driven to be extruded into the clamping grooves on the side inner wall of the insertion hole 13 when the fixed shaft 11 of the structure extends into the insertion hole 13, the firmness of the clamping and fixing of the fixed shaft 11 is improved, a good anti-loosening effect is achieved, the gasket 10 is fixed on the inner side of the reinforcing piece 6, the gasket 10 is mutually attached to the outer side of the nut 5, the gasket 10 of the structure enables the reinforcing piece 6 to be attached to the outer side of the nut 5, so that a gap is not easy to generate between the two to ensure the effect of the reinforcing sheet 6 during reinforcing.

Working principle: when the positioning device of the crankshaft connecting piece is used, firstly, when the crankshaft connecting piece body 1 is connected with the flywheel 2 through the flange 3, the fixing bolt 4 is inserted into the corresponding mounting hole on the flange 3 and the flywheel 2 and is fixed through the nut 5, after the fixing of the nut 5 is completed, the reinforcing piece 6 is sleeved outside the connecting position of the fixing bolt 4 and the nut 5, the clamping rod 7 is driven to extend into the clamping groove 8 and extrude the elastic pad 9 in the process of sleeved the reinforcing piece 6 until the reinforcing piece 6 drives the gasket 10 to be abutted against the outer side of the nut 5, the clamping rod 7 synchronously clamps the barb at the inner end in the notch on the inner wall of the clamping groove 8, so that the clamping rod 7 is fixedly clamped in the clamping groove 8, at the moment, the fixing shaft 11 is inserted into the jack 13 through penetrating through the connecting block 12 until the fixing shaft 11 drives the first magnet block 14 to be in magnetic adsorption fixation with the second magnet block 15, and the elastic clamping block 16 is also driven to be extruded in the clamping groove on the inner wall of the jack 13 side in the process of the fixing shaft 11, and after the fixing shaft 11 is fastened on the connecting block 12, the series of connecting pieces 3 is completed, and the connecting piece 3 and the flywheel 2 is further firmly connected with the connecting piece 3 is completed.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a positioner of bent axle connecting piece, includes bent axle connecting piece body (1) and flywheel (2), one end that bent axle connecting piece body (1) and flywheel (2) are connected is fixed with flange (3), its characterized in that: the flywheel comprises a flywheel body, a flywheel (2) and a flange (3), wherein corresponding mounting holes are formed in the upper side and the lower side of the flywheel body, a fixing bolt (4) is inserted in each corresponding mounting hole in the flywheel body (2) and the flange (3), one end of each fixing bolt (4) located on the outer side of the flange (3) is connected with a nut (5) through a threaded structure, a reinforcing sheet (6) is sleeved on the outer side of the joint of each fixing bolt (4) and the nut (5), clamping rods (7) are respectively fixed at the upper end and the lower end of the inner side of each reinforcing sheet (6), clamping grooves (8) are respectively formed in the upper side and the lower side of the joint of each flange (3) and each fixing bolt (4), and elastic pads (9) are bonded and fixed on the inner wall of one side, away from each clamping groove (8).

2. The positioning device for a crankshaft connecting piece according to claim 1, wherein: the outer end of the clamping rod (7) is of a barb structure, and a notch matched with the barb structure at the outer end of the clamping rod (7) is formed in the inner wall of one side, opposite to the elastic pad (9), of the clamping groove (8).

3. The positioning device for a crankshaft connecting piece according to claim 1, wherein: a connecting block (12) is fixed on one side corresponding to the clamping rod (7), a fixed shaft (11) is inserted in the connecting block (12), and an inserting hole (13) which is matched with the fixed shaft (11) in structure is formed in the position, corresponding to the connecting block (12), of the outer side of the flange (3).

4. A positioning device for a crankshaft connecting member as claimed in claim 3, wherein: the inner end of the fixed shaft (11) is fixed with a first magnet block (14), and the bottom inner wall of the jack (13) is provided with a second magnet block (15).

5. A positioning device for a crankshaft connecting member as claimed in claim 3, wherein: a plurality of elastic clamping blocks (16) are fixedly arranged on the outer wall of the inner end of the fixed shaft (11) in a surrounding mode, and clamping grooves matched with the elastic clamping blocks (16) in structure are formed in the side inner walls of the insertion holes (13).

6. The positioning device for a crankshaft connecting piece according to claim 1, wherein: the inner side of the reinforcing sheet (6) is fixed with a gasket (10), and the gasket (10) is mutually attached to the outer side of the nut (5).