CN209990796U

CN209990796U - Tool structure for driving flywheel to rotate in engine test

Info

Publication number: CN209990796U
Application number: CN201822257314.6U
Authority: CN
Inventors: 钱霞美; 张小伟; 武雷雷
Original assignee: According To Shanghai Science And Technology Group Ltd By Share Ltd
Current assignee: According To Shanghai Science And Technology Group Ltd By Share Ltd
Priority date: 2018-12-30
Filing date: 2018-12-30
Publication date: 2020-01-24
Anticipated expiration: 2028-12-30

Abstract

The utility model discloses a tool structure for driving a flywheel to rotate in engine testing, which comprises a disk-shaped body, wherein an avoidance hole is arranged at the middle position of the disk-shaped body; the more than one driving pins are arranged along the radial direction of the rotating shaft and are vertically connected with the disk-shaped body; and more than one rotating fastener which takes the lightening hole of the flywheel as a positioning hole and can fasten and connect the disk-shaped body and the flywheel into a whole.

Description

Tool structure for driving flywheel to rotate in engine test

Technical Field

The utility model relates to a drive structure for engine test, drive flywheel pivoted frock structure when concretely relates to is used for engine test.

Background

When the engine is tested, the testing equipment adopts the motor to drive the crankshaft of the engine to rotate, the actual working condition of the engine is simulated to carry out online testing, and then the flywheel of the engine product is required to be installed on the crankshaft of the engine.

In practical use, the clamping jaw clamping mode has some defects, for example, crankshaft signal detection of a product flywheel is completed through participation of a crankshaft signal detection surface adjacent to a product flywheel tooth surface, in such a case, the clamping jaw tooth for clamping can block the crankshaft signal detection, and further, acquisition of related detection data and real evaluation of related performance of a transmission engine can be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome among the prior art not enough to the fixed form of product flywheel, provide a drive flywheel pivoted frock structure in being arranged in the engine test.

The technical problem to be solved can be implemented by the following technical scheme.

A tool structure for driving a flywheel to rotate in engine testing is characterized by comprising

The middle of the disc-shaped body is provided with an avoidance hole; and

more than one driving pin, the more than one driving pin is arranged along the radial direction of the rotating shaft and is vertically connected with the disk-shaped body; and

and the at least one rotary fastener takes the lightening hole of the flywheel as a positioning hole and can fasten and connect the disk-shaped body and the flywheel into a whole.

As a preferred embodiment of the present invention, the lightening holes are waist-shaped holes; the rotary fastener comprises a positioning base and a limiting pin, wherein one end of the limiting pin is inserted into the positioning base, the other end of the limiting pin is inserted into the disc surface of the disc-shaped body, the rotary fastener is also provided with a rotary pressing plate for screwing, and the long edge of the rotary pressing plate is smaller than the long edge of the kidney-shaped hole and larger than the short edge of the kidney-shaped hole; and an elastic part is padded between the rotary pressure plate and the disc surface of the flywheel disc.

As a further preferred embodiment, the elastic member is an elastic washer which is fitted around a fastening shaft of the rotating fastener.

As a further improvement of the present invention, the drive pin penetrates the disk surface of the disk-shaped body and extends to both sides of the disk surface.

As a further improvement of the technical scheme, the surface of the disk-shaped body is provided with a damping component protruding out of the disk surface of the disk-shaped body.

As a further improvement of the technical scheme, the disc surface of the disc-shaped body is provided with a hollow hole.

As another preferred embodiment of the present invention, the tool structure includes three driving pins uniformly arranged along the radial direction of the rotating shaft, and three rotating fasteners.

The technical scheme is adopted, the tool structure for driving the flywheel to rotate in the engine test aims to overcome the defect that the crankshaft of the engine driven by the existing test equipment can affect the detection of the crankshaft signal, and the provided process flywheel driving thought is used as the supplement of the existing driving form, is suitable for the forms of more engines and is convenient for the engine test.

Drawings

Fig. 1 is a schematic structural diagram of a tool structure for driving a flywheel to rotate in an engine test and an installation of the tool structure and the flywheel in an embodiment 1 of the present invention;

FIG. 2 is a structural schematic view in another direction of FIG. 1;

fig. 3 is a schematic structural view of a tool for driving a flywheel to rotate in an engine test according to embodiment 2 of the present invention;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a sectional view taken along line A-A in FIG. 4;

fig. 6 is a schematic structural view of a tool for driving a flywheel to rotate in an engine test according to embodiment 3 of the present invention;

FIG. 7 is a structural schematic view in another direction of FIG. 6;

FIG. 8 is a schematic view of the application of the tooling structure of the present invention;

in the figure: 1. 11, 31, a craft disc 2, a rotary pressure plate 3, a rotary pin 4, a drive pin 5, a limit pin 6, a product flywheel 7, a tooth surface 8, a crankshaft signal detection surface 9, a damping pad 10, rotary drive plates 110, 120, a drive tooth 12, a hollow hole 13, drive equipment 21, a lightening hole 22, a mounting base 23, an elastic washer

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings.

Example 1:

as shown in fig. 1 and 2, the improvement of the present invention is based on using a form of process flywheel to drive the rotation of the engine crankshaft to further complete the subsequent tests. The process disc 11 is placed on one side of a crankshaft signal detection surface 8 of the product flywheel 6, one end of a rotating pin 3 of a plurality of rotating fasteners is positioned through an installation base 22 by means of a plurality of kidney-shaped lightening holes 21 on the product flywheel 6, and the other end (the disc surface at one end of a tooth surface 7) is limited through a rotating pressure plate 2; the product flywheel 6 and the process disc 11 are tightly connected into a whole by screwing the rotary pressure plate 2.

On the other hand, a group of three drive pins 4 is evenly distributed on the disk surface. The surface of the craft disc 11 is also provided with a hollow hole 12.

Example 2:

as shown in fig. 3 to 5, compared with embodiment 1, the tooling structure has no hollow hole on the disk surface.

For stable installation, the mounting base 22 is connected to the process disk 1 via a limit pin 5.

When the device is used, the rotating pin 3 is manually shifted to rotate, the limiting pin 5 limits the rotating angle of the rotating pin 3, the rotating pressure plate 2 is enabled to have 2 rotating positions for pressing and releasing, the product flywheel is rotationally pressed by the rotating pressure plate 2 and the deformation of the elastic lining object on the lower portion of the rotating pressure plate, one end of the driving pin 4 enters the pin hole of the product flywheel, and the other end of the driving pin is in driving connection with equipment, so that the preparation work of the driving crankshaft is completed.

Example 3:

the tooling structure shown in fig. 6 to 8 also shows different forms of the process disc 31, wherein the disc surface is provided with through holes and vibration reduction pads are arranged in the through holes. Wherein the shock absorbing pad 9 is protruded from the disc surface to maintain the flexibility and shock absorbing requirement when each rigid member is contacted in the subsequent application.

As in the previous embodiment, the long circular rotary press plate 2 is rotated and pressed tightly by the rotary press plate and the flywheel by means of the extrusion deformation of the elastic washer 23 sleeved on the rotating shaft, and the process plate and the flywheel are tightly combined. Further, the driving pin 4 inserted between the dialing teeth 110 and 120 is driven by the rotating dialing plate 10 driven by the driving device 13, so as to realize the connection with the process disk, and the process disk is pre-installed on a product flywheel starting the automatic gear and is used for dialing the process disk to drive the crankshaft of the engine to rotate, so that the test is carried out.

As the kidney-shaped holes (the lightening holes 21) of the automatic gear flywheels of the product are formed in a plurality of automatic gear flywheels, the automatic gear flywheels are not machined with high precision, are light and thin, and are generally not provided with threaded holes, the technical scheme ingeniously meets the requirement of connection of a driving engine by means of a kidney-shaped hole pre-installation process disc on the flywheels for the test requirement of cold test. On the other hand, the long side of the rotary press plate 2 is smaller than the long side of the kidney-shaped hole and larger than the short side of the kidney-shaped hole, so that the installation or the disassembly in different rotation positions can be conveniently realized.

This configuration accomplishes the test by driving the engine crankshaft in rotation using a process flywheel. The diversity of the driving forms can be increased, and the flywheel can adapt to different forms of engine products.

Claims

1. A tool structure for driving a flywheel to rotate in engine testing is characterized by comprising a disc-shaped body, wherein an avoidance hole is formed in the middle of the disc-shaped body; and

2. The tool structure for driving the flywheel to rotate in the engine test according to claim 1, wherein the lightening holes are kidney-shaped holes; the rotary fastener comprises a positioning base and a limiting pin, wherein one end of the limiting pin is inserted into the positioning base, the other end of the limiting pin is inserted into the disc surface of the disc-shaped body, the rotary fastener is also provided with a rotary pressing plate for screwing, and the long edge of the rotary pressing plate is smaller than the long edge of the kidney-shaped hole and larger than the short edge of the kidney-shaped hole; and an elastic part is padded between the rotary pressure plate and the disc surface of the flywheel disc.

3. The tooling structure for driving the flywheel to rotate in the engine test according to claim 2, wherein the elastic member is an elastic washer which is sleeved on a fastening shaft of the rotating fastener.

4. The tooling structure for driving the flywheel to rotate in the engine test according to claim 1, wherein the driving pin penetrates through the disc surface of the disc-shaped body and extends towards two sides of the disc surface.

5. The tooling structure for driving the flywheel to rotate in the engine test according to claim 1, wherein a damping part protruding out of the disc surface is arranged on the surface of the disc.

6. The tooling structure for driving the flywheel to rotate in the engine test according to claim 1, wherein a hollow hole is formed in the disc surface of the disc-shaped body.

7. The tooling structure for driving the flywheel to rotate in the engine test according to claim 1, wherein the tooling structure comprises three driving pins uniformly arranged along the radial direction of the rotating shaft and three rotating fasteners.