CN210180418U

CN210180418U - Portable EPS reduction gears clearance detection device

Info

Publication number: CN210180418U
Application number: CN201921276424.5U
Authority: CN
Inventors: Dashun Li; 李大顺
Original assignee: Hubei Henglong Kaiwanbi Electric Steering System Co Ltd
Current assignee: Hubei Henglong Kaiwanbi Electric Steering System Co Ltd; Hubei Henglong and KYB Automobile Electric Steering System Co Ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-03-24
Anticipated expiration: 2029-08-07

Abstract

The utility model discloses a portable EPS reduction gears clearance detection device, including first bottom plate, balancing piece, reduction gears assembly and second bottom plate, the top fixed connection of hexagon socket head cap screw and first bottom plate is passed through to the bottom of second bottom plate, and the top fixed connection of hexagon socket head cap screw and second bottom plate is passed through to the bottom of reduction gears assembly, and the inside of reduction gears assembly rotates and is connected with the worm, and the top of worm runs through the second bottom plate and extends to the top of second bottom plate, the utility model relates to an automobile steering technical field. This portable EPS reduction gears clearance detection device can realize providing one kind and can adapt to any occasion, need not the power, low price, easy operation and portable worm gear clearance detection device to satisfy the product worm gear clearance and can control in reasonable scope when producing, thereby promote the product percent of pass, the field analysis work of abnormal sound or after-sales return among the specially adapted road durability test.

Description

Portable EPS reduction gears clearance detection device

Technical Field

The utility model relates to an auto steering technical field specifically is a portable EPS reduction gears clearance detection device.

Background

Electric Power Steering (EPS) is the development direction of an automobile Steering system, and on one hand, the EPS technology is guided by energy-saving and environment-friendly policy and regulation, and on the other hand, the EPS technology belongs to upgrading type and trend type configuration.

However, the EPS adopts a worm and gear speed reducing mechanism to achieve the purposes of speed reduction and torque increase, a worm and gear generate heat under the action of a large load, the thermal expansion rate of a worm gear material nylon is obviously higher than that of a worm, the clearance between the worm and the gear is reduced after the worm thermally expands, the rolling power is increased, after the EPS travels for a certain distance, the worm and gear material is abraded, the clearance between the worm and the gear is indirectly increased, abnormal sound is generated, the clearance can be controlled in an interval when the EPS is produced, abnormal sound is generated when the EPS is too large, the steering performance is influenced when the EPS is too small, and a device for detecting the clearance between the worm and the gear is lacked.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a portable EPS reduction gears clearance detection device has solved current auto steering reduction gears and has lacked the device influence that detects to the worm gear clearance and turn to the performance problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a portable EPS retarding mechanism gap detection device comprises a first base plate, a balancing block, a retarding mechanism assembly and a second base plate, the bottom of the second bottom plate is fixedly connected with the top of the first bottom plate through an inner hexagon screw, the bottom of the speed reducing mechanism assembly is fixedly connected with the top of the second bottom plate through an inner hexagon screw, a worm is rotatably connected in the speed reducing mechanism assembly, the top end of the worm penetrates through the second bottom plate and extends to the top of the second bottom plate, the interior of the speed reducing mechanism assembly is rotatably connected with a worm wheel output shaft, one worm wheel output shaft penetrates through the balance block and extends to one side of the balance block, the worm wheel output shaft extends to one end of one side of the balance block and one end of the worm extending to one side of the second bottom plate are both rotatably connected with a locking nut, and the surface of the worm is fixedly connected with a worm spring chuck on the bottom plate of the second bottom plate.

Preferably, the surface of the worm and the inner part of the speed reducing mechanism assembly are fixedly connected with a worm wheel, and one side of the locking nut is fixedly connected with a locking handle.

Preferably, the surface of the worm wheel output shaft and the other side of the balance block are fixedly connected with an output shaft spring chuck, and the surface of the output shaft spring chuck is fixedly connected with an output shaft spring chuck sleeve.

Preferably, the top of the balance block is movably connected with a weight, and one side of the top of the first bottom plate is fixedly connected with a mounting column.

Preferably, one side of the surface of the mounting column is fixedly connected with a mounting block through a hand-twisting screw, and one side of the mounting block is fixedly connected with a lever meter through the hand-twisting screw.

Preferably, the weight has a weight of 1 KG.

Advantageous effects

The utility model provides a portable EPS reduction gears clearance detection device. Compared with the prior art, the method has the following beneficial effects:

(1) the portable EPS reducing mechanism clearance detection device is fixedly connected with the top of a first base plate through the bottom of a second base plate through an inner hexagon screw, the bottom of a reducing mechanism assembly is fixedly connected with the top of the second base plate through an inner hexagon screw, a worm is rotatably connected inside the reducing mechanism assembly, the top end of the worm penetrates through the second base plate and extends to the top of the second base plate, a worm wheel output shaft is rotatably connected inside the reducing mechanism assembly, one end of the worm wheel output shaft penetrates through a balance block and extends to one side of the balance block, one end of the worm wheel output shaft extending to one side of the balance block and one end of the worm extending to one side of the second base plate are both rotatably connected with a locking nut, a worm spring chuck is fixedly connected on the surface of the worm and the base plate of the second base plate, a worm wheel is fixedly connected on the surface and the inside of the reducing mechanism assembly, and one, the utility model discloses a worm wheel durability test device, including worm wheel output shaft, the surface of worm wheel output shaft and be located the opposite side fixedly connected with output shaft collet chuck of balancing piece, the fixed surface of output shaft collet chuck is connected with output shaft collet chuck cover, the top swing joint of balancing piece has the weight, one side fixedly connected with erection column at first bottom plate top, one side on erection column surface is through turning round hand screw fixedly connected with installation piece, one side of installation piece is through turning round hand screw fixedly connected with lever table, can realize providing one kind and can adapt to any occasion, need not the power, low price, easy operation and portable worm gear clearance detection device, thereby satisfy the product worm gear clearance can be controlled at reasonable within range when producing, thereby promote the product qualification rate, in the field analysis work of abnormal sound or after-sale return among the specially adapted road durability test.

(2) This portable EPS reduction gears clearance detection device, the inside fixedly connected with worm wheel that just is located the reduction gears assembly through the surface of worm, one side fixedly connected with locking handle of lock nut, the setting up of locking handle can realize providing certain holding power when rotating to screw up lock nut, has reduced the force that the hand need exert.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

fig. 3 is a side view of the structure of the present invention.

In the figure: 1-a first bottom plate, 2-a balance block, 3-a speed reducing mechanism assembly, 4-a second bottom plate, 5-a hexagon socket screw, 6-a worm, 7-a worm gear output shaft, 8-a locking nut, 9-a worm spring chuck, 10-a worm gear, 11-a locking handle, 12-an output shaft spring chuck, 13-an output shaft spring chuck sleeve, 14-a weight, 15-an installation column, 16-a hand-twisting screw, 17-an installation block and 18-a lever meter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a portable EPS reducing mechanism clearance detection device can be adapted to any occasion, does not need a power supply, is low in price, is simple to operate and is portable, thereby satisfying the requirement that the clearance between a worm wheel 10 and a worm 6 can be controlled within a reasonable range during production of a product, thereby improving the product qualification rate, and is particularly suitable for field analysis work of abnormal sound or after-sale return parts in road durability tests, the portable EPS reducing mechanism clearance detection device comprises a first base plate 1, a balance block 2, a reducing mechanism assembly 3 and a second base plate 4, wherein a plurality of lightening holes are formed in the balance block 2, the distance from the center of a weight 14 to the center line of an output shaft is 100mm, the top of the balance block 2 is movably connected with the weight 14, the weight 14 is 1KG, one side of the top of the first base plate 1 is fixedly connected with a mounting column 15, one side of the surface of the mounting column 15 is fixedly connected with a mounting block, one side of the mounting block 17 is fixedly connected with a lever indicator 18 through a hand-twisting screw 16, the bottom of the second bottom plate 4 is fixedly connected with the top of the first bottom plate 1 through an inner hexagon screw 5, the surface of the worm 6 is fixedly connected with a worm wheel 10 positioned in the reduction mechanism assembly 3, one side of the locking nut 8 is fixedly connected with a locking handle 11, six surfaces of the locking nut 8 are respectively provided with a locking hole, the bottom of the reduction mechanism assembly 3 is fixedly connected with the top of the second bottom plate 4 through the inner hexagon screw 5, the interior of the reduction mechanism assembly 3 is rotatably connected with the worm 6, the top end of the worm 6 penetrates through the second bottom plate 4 and extends to the top of the second bottom plate 4, the interior of the reduction mechanism assembly 3 is rotatably connected with a worm wheel output shaft 7, the surface of the worm wheel output shaft 7 and the other side positioned on the balance block 2 are fixedly connected with an output shaft spring chuck 12, the output shaft spring chuck 12 and the spring worm chuck, an output shaft spring clamp sleeve 13 is fixedly connected to the surface of the output shaft spring clamp 12, one end of the worm gear output shaft 7 penetrates through the balance block 2 and extends to one side of the balance block 2, one end of the worm gear output shaft 7 extending to one side of the balance block 2 and one end of the worm 6 extending to one side of the second bottom plate 4 are both rotatably connected with a locking nut 8, and the surface of the worm 6 and the bottom plate positioned on the second bottom plate 4 are fixedly connected with a worm spring clamp 9.

During the use, set up a plurality of shrink grooves on the worm collet chuck 9, worm collet chuck 9 external diameter is taper fit, makes the movement of worm collet chuck 9 axis direction when lock nut 8 locks, and the radial direction motion of worm collet chuck 9 to press from both sides worm 6 and worm wheel output shaft 7 tightly, for 100MM point through the arm of force and join in marriage 1 KG's weight 14 and produce 1 N.m's moment of torsion, accord with the industry standard, through trigonometric function calculate worm wheel 10 and worm 6 the clearance distance can, just so accomplished whole work.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a portable EPS reduction gears clearance detection device, includes first bottom plate (1), balancing piece (2), reduction gears assembly (3) and second bottom plate (4), the top fixed connection of hexagon socket head cap screw (5) and first bottom plate (1) is passed through to the bottom of second bottom plate (4), its characterized in that: the bottom of the speed reducing mechanism assembly (3) is fixedly connected with the top of the second bottom plate (4) through an inner hexagon screw (5), a worm (6) is rotatably connected inside the speed reducing mechanism assembly (3), the top end of the worm (6) penetrates through the second bottom plate (4) and extends to the top of the second bottom plate (4), a worm wheel output shaft (7) is rotatably connected inside the speed reducing mechanism assembly (3), one worm wheel output shaft (7) penetrates through the balance block (2) and extends to one side of the balance block (2), one end of the worm wheel output shaft (7) extending to one side of the balance block (2) and one end of the worm (6) extending to one side of the second bottom plate (4) are both rotationally connected with a locking nut (8), and a worm spring chuck (9) is fixedly connected to the surface of the worm (6) and the bottom plate positioned on the second bottom plate (4).

2. The portable EPS reduction mechanism gap detection device according to claim 1, characterized in that: the worm gear type speed reducer is characterized in that a worm wheel (10) is fixedly connected to the surface of the worm (6) and located inside the speed reducing mechanism assembly (3), and a locking handle (11) is fixedly connected to one side of the locking nut (8).

3. The portable EPS reduction mechanism gap detection device according to claim 1, characterized in that: an output shaft spring chuck (12) is fixedly connected to the surface of the worm wheel output shaft (7) and located on the other side of the balance block (2), and an output shaft spring chuck sleeve (13) is fixedly connected to the surface of the output shaft spring chuck (12).

4. The portable EPS reduction mechanism gap detection device according to claim 1, characterized in that: the top of the balance block (2) is movably connected with a weight (14), and one side of the top of the first bottom plate (1) is fixedly connected with a mounting column (15).

5. The portable EPS reduction mechanism gap detection device according to claim 4, characterized in that: one side on the surface of the mounting column (15) is fixedly connected with a mounting block (17) through a hand-twisting screw (16), and one side of the mounting block (17) is fixedly connected with a lever meter (18) through the hand-twisting screw (16).

6. The portable EPS reduction mechanism gap detection device according to claim 4, characterized in that: the weight (14) is 1 KG.