CN208686838U - In one kind, light commercial vehicle turn to high-intensitive countershaft assembly - Google Patents
In one kind, light commercial vehicle turn to high-intensitive countershaft assembly Download PDFInfo
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- CN208686838U CN208686838U CN201821147158.1U CN201821147158U CN208686838U CN 208686838 U CN208686838 U CN 208686838U CN 201821147158 U CN201821147158 U CN 201821147158U CN 208686838 U CN208686838 U CN 208686838U
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- telescopic shaft
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Abstract
The utility model discloses in one kind, light commercial vehicle turns to high-intensitive countershaft assembly, it is related to automotive steering structure technical field, for solving in one kind, the intermediate propeller shaft of light commercial vehicle leads to the problem of serious wear and installation trouble due to large torque, it includes telescopic shaft and telescopic, first segment fork is connected on the left of telescopic, the second section of telescopic shaft right side termination fork, the first segment fork is connected by cross-bearing and third section fork, the second section fork is connected by cross-bearing and Section of four fork, more track grooves are equipped on the inside of the telescopic, the telescopic shaft set there are two protrusion axle elastic spring, the telescopic shaft is equipped with the ball retainer that can be moved axially between axle elastic spring, the multiple steel balls that can be freely rotated and not fall off are equipped in the track groove of the ball retainer 9, the utility model The advantages of simple with installation, steering wheel adjusting force is small, the degree of wear low increase service life.
Description
Technical field
The utility model relates to automotive steering structure technical field, more particularly in one kind, light commercial vehicle turns
To high-intensitive countershaft assembly.
Background technique
Automobile steering drive shaft assembly is that the operating force of steering wheel and direction are passed to diverter, to realize that vehicle turns
To important security personnel's component, the intermediate propeller shaft of steering drive axle assembly be complete in general, the steering wheel of light commercial vehicle
The important component that position adjustment and wheel steering are realized, while vehicle is travelled in certain bumpy sections, driver's cabin has
Driver's cabin needs to overturn when lower vibration, vehicle carry out maintenance and repair, so among in design vehicle steering drive axle assembly
Shaft portion need to have biggish contraction range and higher intensity.
In general at present, the telescopic shaft that the intermediate propeller shaft of the steering drive axle assembly of light commercial vehicle is and telescopic be
It can be mutually shifted by spline pair mating connection, thus generated needed for achieving the purpose that intermediate propeller shaft, but due to flower
Key teeth face contact face is larger, and telescopic and resistance caused by telescopic shaft are big in cooperation, professional standard its contractility 100N, so
It is that adjustment force is greater than 150N adjusting steering wheel, so that steering wheel comfort level in adjustment is poor, simultaneously because telescopic shaft and flexible
The contact surface of set is big, it is easy to cause lubricating grease to be not easy to cover contact surface comprehensively and cause to be unable to sufficient lubrication, so that using
Abrasion aggravation, service life reduce in the process, and design has among ball-type steering axles in the prior art regarding to the issue above
Transmission shaft, but current following problem exists in the prior art: (1) in the steering procedure of steel ball, steel ball and steel ball
Mounting groove is prone to wear under the action of large torque, so that generating gap between steel ball and steel ball mounting groove, torque is caused to transmit
Decline and the case where generate abnormal sound, and current ball retainer general in the prior art be substantially welded in it is flexible upper or straight
Connect on telescopic shaft setting steel ball mounting groove so that the trouble in production installation, the intensity of the telescopic shaft of production and telescopic without
Method reach general in, intensity needed for the intermediate propeller shaft of the steering drive axle assembly of light commercial vehicle, while for a long time due to big
So that telescopic shaft quick abrasion, need to directly replace telescopic shaft, replacement cost is high for the effect of torque.
Therefore, it has studied in view of the above technical problems in one kind, light commercial vehicle turns to high-intensitive countershaft assembly.
Utility model content
The purpose of this utility model is that: in order to solve in one kind, the intermediate propeller shaft of light commercial vehicle is due to large torque
Lead to the problem of serious wear and installation trouble, the utility model is provided in one kind, light commercial vehicle turns to high-intensitive jackshaft
Assembly.
The utility model specifically uses following technical scheme to achieve the goals above:
In one kind, light commercial vehicle turn to high-intensitive countershaft assembly, including telescopic shaft and telescopic, connect on the left of telescopic
It is connected to first segment fork, the second section of telescopic shaft right side termination fork, first segment fork is connected by cross-bearing and third section fork, the second section
Fork is connected by cross-bearing and Section of four fork, and track groove is equipped on the inside of the telescopic, is radially provided with two on the telescopic shaft
A axle elastic spring, the telescopic shaft is equipped with the ball retainer that can be moved axially between axle elastic spring, described
More sliding recess one are equipped on telescopic shaft between axle elastic spring, the ball retainer is equipped with more track grooves,
The telescopic shaft and ball retainer are slidably connected by sliding recess one and track groove, and two rows of energy are equipped in the track groove certainly
By the multiple steel balls for rotating and not falling off, the track groove is identical as track groove, and telescopic shaft is connected with telescopic by steel ball.
Further, the telescopic right end has sealing ring, and elastic locating sleeve and dustband are fixed on by sealing ring
On telescopic, preventing impurity from entering telescopic shaft and telescopic by installation sealing ring and dustband influences service life, simultaneously
Such mounting means is convenient and simple.
Further, the telescopic shaft is equipped with 4 symmetrical sliding recess one, and the ball retainer is equipped with 4 rollings
Road slot is equipped with steel ball in 2 track grooves, and steel ball has 4, is to allow ball retainer and flexible using 4 track grooves
It is more stable between axis, but it is to come to be able to satisfy required sliding effect while having loss of weight because of two that only two, which are equipped with steel ball,
Effect.
Further, the track groove is equipped with lubricating grease, so that the movement that steel ball more lubricates between track groove.
Further, the track groove uses bicircular arcs structure, and the steel ball and track groove contact point are 30 degree of cambered surface
Position reduces the contact area of steel ball and track groove in this manner, reduces frictional force, reduced abrasion, which increases, to be made
With the service life, while making have a fixed gap between steel ball and track groove, convenient for storage lubricating oil, guarantees sufficiently to moisten when steel ball movement
It is sliding.
Further, the first segment fork is connected by welding with telescopic, and the second section fork passes through welding phase with telescopic shaft
Even.
Further, the material of the telescopic shaft, telescopic and ball retainer is all made of whole carburizing and quenching processing,
Surface hardness is 58HRC or more, and material core structure hardness is 25-32HRC, and telescopic shaft raceway is integrally wear-resisting, intensity is high, resistance to
Impact force is strong；
Further, the axis the distance between two elastic springs are 20mm-30mm, and distance range setting is smaller,
Enable ball retainer small range mobile, steel ball activity is separated but does not influence the structure of the utility model.
Further, the steel ball is grouped with 0.02mm, by segmenting the size of steel ball, controls the gap for the axle sleeve that stretches,
Gap is small, guarantees low in initial gap, promotes the service life of product.
The beneficial effects of the utility model are as follows:
1. in one of the utility model, light commercial vehicle turn to high-intensitive countershaft assembly, pass through the centre of steel-ball type
The frictional force between telescopic shaft and telescopic that axle assembly reduces, reduces steering wheel adjusting force, reduces the degree of wear, so that
The comfort level raising of adjustment direction disk increases service life, while sliding recess one and ball retainer being arranged on telescopic shaft
On the match mode of connection of track groove connect telescopic shaft and ball retainer, ball retainer is done in a certain range
While linear motion is not so that steel ball link together, facilitate installing and dismounting, so that even if serious wear only needs to change steel
Ball retainer, reduces use cost.
2. being provided with sealing ring and dustband on telescopic and elastic locating sleeve avoiding impurity and enters telescopic shaft and stretch
The case where contracting set, service life is increased, while dustband and elastic locating sleeve being fixed on telescopic by sealing ring, made
Obtain sealing ring and the more convenient installation of dustband and elastic locating sleeve.
3. the telescopic shaft is equipped with 4 symmetrical sliding recess one, the ball retainer is equipped with 4 track grooves, institute
It states and is equipped with steel ball in 2 track grooves, it is to allow between ball retainer and telescopic shaft more using 4 track grooves that steel ball, which has 4,
Stablize, but it is to come to be able to satisfy required sliding effect while having weight loss effect because of two that only two, which are equipped with steel ball, is dropped
The load-bearing burden of low intermediate bearing, which lowers, increases service life.
4. the track groove increases lubricating grease, simultaneously because track groove uses bicircular arcs structure, the steel ball and track groove
The position that contact point is 30 degree of cambered surface, so being reduced in the contact area for reducing steel ball and track groove in this way
Frictional force, due to such design while reduced abrasion increases service life, track groove contacted with steel ball between can exist
Some gaps guarantee sufficient lubrication when steel ball movement convenient for storage lubricating oil.
5. the first segment fork is connected by welding with telescopic, the second section fork is connected by welding with telescopic shaft, so that
It is firm more to stablize.
6. in general at present, light commercial vehicle steering shaft countershaft assembly, since some materials needs remove when production
For material so the strength of materials reduces, production efficiency is low, and telescopic shaft described in the utility model, telescopic and ball retainer
Material is all made of whole carburizing and quenching processing, and surface hardness is 58HRC or more, and material core structure hardness is 25-32HRC,
Telescopic shaft raceway is integrally wear-resisting, intensity is high, and impact resistance is strong, so that service life increases high production efficiency, reduces and is produced into
Sheet and use cost.
7. the axis the distance between two elastic springs are 20mm-30mm, distance range setting is smaller, so that steel ball
Retainer energy small range is mobile, and steel ball activity is separated but does not influence the structure of the utility model, so that stretching in the utility model
It is preferably slided between contracting axis and telescopic by steel ball.
8. the steel ball is grouped with 0.02mm, by segmenting the size of steel ball, the gap for the axle sleeve that stretches is controlled, gap is small,
Guarantee low in initial gap, promotes the service life of product.
Detailed description of the invention
Fig. 1 is in one kind, light commercial vehicle turns to the structural schematic diagram of high-intensitive countershaft assembly；
Fig. 2 is in one kind, light commercial vehicle turns to the sectional view of high-intensitive countershaft assembly telescopic shaft and telescopic；
Fig. 3 is in one kind, light commercial vehicle turns to the schematic diagram of high-intensitive countershaft assembly telescopic shaft and ball retainer；
Fig. 4 is in one kind, light commercial vehicle turns to the schematic diagram of high-intensitive countershaft assembly telescopic shaft；
Fig. 5 is in one kind, light commercial vehicle turns to the contact point schematic diagram of high-intensitive countershaft assembly steel ball and track groove.
Appended drawing reference: 1- third section fork, 2- cross-bearing, 3- first segment fork, 4- telescopic shaft, 5- telescopic, the second section of 6-
Fork, Section four of 7- fork, 8- elastic spring, 9- steel ball, 10- ball retainer, 11- elastic locating sleeve, 12- dustband, 13- are close
Seal, 101- track groove, 401- sliding recess one, two grooves one of 402-.
Specific embodiment
It is practical new to this below with reference to following embodiment in order to which those skilled in the art better understand the utility model
Type is described in further detail.
Embodiment 1
As shown in Fig. 1 to 3, the present embodiment provides in one kind, light commercial vehicle turns to high-intensitive countershaft assembly, including stretches
Contracting axis 4 and telescopic 5, are connected with first segment fork 3 on the left of the telescopic 5,4 the second section of right side termination of telescopic shaft fork 6,
The first segment fork 3 is connect by cross-bearing 2 with third section fork 1, and the second section fork 6 passes through cross-bearing 2 and Section four
Fork 7 connects, and more track grooves 101 are equipped on the inside of the telescopic 5, are radially provided with two grooves 1 on the telescopic shaft 4,
The axle elastic spring 8 of protrusion there are two setting is inlayed on the groove 1, the telescopic shaft 4 is equipped with can be in axle-steel silk
It is recessed to be equipped with 4 slidings on the telescopic shaft 4 between axle elastic spring 8 for the ball retainer 10 moved axially between retaining ring 8
Slot 1, the ball retainer 10 are equipped with 4 track grooves 101, and the telescopic shaft 4 and ball retainer 10 pass through sliding
Groove one and track groove 101 are slidably connected, and 4 that can be freely rotated and not fall off are respectively equipped in described two track grooves 101
Steel ball 9, the track groove 101 is identical as track groove 101, and telescopic shaft 4 and telescopic 5 are connected by steel ball 9.
5 right end of telescopic has sealing ring 13, and elastic locating sleeve 11 and dustband 12 are fixed on by sealing ring 13
On telescopic 5.
Function introduction: the installation process in the countershaft assembly structure of the utility model passes through ball retainer 10 flexible
Sliding recess 1 on axis 4 is connect with the track groove 101 of ball retainer 10, and two elastic springs are installed on telescopic shaft 4
8, so that ball retainer 10 can only move reciprocatingly between elastic spring 8, then two on ball retainer 10 piece are rolled
4 steel balls 9 are installed respectively, steel ball 9 can be freely rotated but not fall off, and telescopic shaft 4 is installed in telescopic 5, is made in road slot 101
It obtains steel ball 9 to connect with the track groove 101 in telescopic 5, has sealing ring 13 in 5 right end of telescopic, sealing ring 13 will be elastic
Positioning sleeve 11 and dustband 12 are fixed on telescopic 5, are installed simple and convenient.
Telescopic shaft 4 is moved linearly in the track groove of flexible axle sleeve using 2 groups of 8 steel balls 9 on ball retainer 10,
Ball retainer 10 can do small range linear motion when telescopic shaft moves in a straight line so that steel ball is not assembled in elastic spring
It gathers together, the track groove that the track groove of simultaneous retractable axis can drive steel ball 9 to drive telescopic 5 does twist motion, thus real
The transmitting of existing steering wheel operation power.
Embodiment 2
As shown in Figs. 1-5, in order to keep steel ball 9 and the contact surface of track groove 101 smaller, frictional force is smaller, and the present embodiment exists
Further improvement has been done on the basis of embodiment 1, specific as follows:
The track groove 101 uses bicircular arcs structure, the position that the steel ball 9 is 30 degree of cambered surface with 101 contact point of track groove
It sets, the track groove 101 on telescopic 5 and the track groove 101 on ball retainer are equipped with lubricating grease, and lubricating grease can be in 8 He of steel ball
It is stored in 101 contact gap of track groove, lubricant effect can be made more preferably more long.
Embodiment 3
As shown in Figs. 1-5, in order to keep the service life of the utility model more long, shock resistance dynamics is stronger, wear-resisting durability
Stronger, the present embodiment has done further improvement on the basis of embodiment 2, specific as follows:
Telescopic shaft 4 described in the utility model, flexible 5 sets and ball retainer 10 material be all made of whole carburizing and quench
Fire processing, so that material surface hardness is 58HRC or more, material core structure hardness is 25-32HRC, two steel of the axis
The distance between silk retaining ring (8) is 20mm-30mm, and the steel ball 9 is grouped with 0.02mm, first between steel ball 9 and track groove 101
Beginning gap is consistent substantially.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model
Scope of patent protection be subject to claims, equivalent structure made by all descriptions with the utility model becomes
Change, similarly should be included in the protection scope of the utility model.
Claims (9)
1. in one kind, light commercial vehicle turn to high-intensitive countershaft assembly, including telescopic shaft (4) and telescopic (5), telescopic
(5) left side is connected with first segment fork (3), and telescopic shaft (4) second section of right side termination pitches (6), and the first segment fork (3) passes through
Cross-bearing (2) is connect with third section fork (1), and the second section fork (6) is connect by cross-bearing (2) with Section of four fork (7),
It is characterized by: be equipped with more track grooves (101) on the inside of the telescopic (5), be radially provided on the telescopic shaft (4) two it is recessed
Slot one (402) is inlayed on the groove one (402) and is set there are two the axle elastic spring (8) of protrusion, on the telescopic shaft (4)
Equipped with the ball retainer (10) that can be moved axially between axle elastic spring (8), in axle-steel silk on the telescopic shaft (4)
More sliding recess one (401) are equipped between retaining ring (8), the ball retainer (10) is equipped with more track grooves (101), institute
It states telescopic shaft (4) to be slidably connected by the road slot (101) that sliding recess one and ball retainer (10) roll, the track groove
(101) the multiple steel balls (9) that can be freely rotated and not fall off, telescopic shaft (4) and telescopic (5) is equipped in connect by steel ball (9)
It connects.
2. in one kind according to claim 1, light commercial vehicle turn to high-intensitive countershaft assembly, it is characterised in that: institute
Telescopic (5) right end is stated equipped with sealing ring (13), elastic locating sleeve (11) is fixed on by sealing ring (13) with dustband (12) to be stretched
On contracting set (5).
3. in one kind according to claim 1, light commercial vehicle turn to high-intensitive countershaft assembly, it is characterised in that: institute
Telescopic shaft (4) are stated equipped with 4 symmetrical sliding recess one (401), the ball retainer (10) is equipped with 4 track grooves
(101), two rows of steel balls (9) are equipped in the track groove (101), every row's steel ball (9) there are 4.
4. in one kind according to claim 1, light commercial vehicle turn to high-intensitive countershaft assembly, it is characterised in that:
The track groove (101) in track groove (101) and ball retainer (10) on telescopic (5) is equipped with lubricating grease.
5. in one kind according to claim 1, light commercial vehicle turn to high-intensitive countershaft assembly, it is characterised in that: institute
It states track groove (101) and uses bicircular arcs structure, the position that the steel ball (9) is 30 degree of cambered surface with track groove (101) contact point.
6. in one kind according to claim 1, light commercial vehicle turn to high-intensitive countershaft assembly, it is characterised in that: institute
It states first segment fork (3) to be connected by welding with telescopic (5), the second section fork (6) is connected by welding with telescopic shaft (4).
7. in one kind according to claim 1, light commercial vehicle turn to high-intensitive countershaft assembly, it is characterised in that: institute
The material surface hardness for stating telescopic shaft (4), telescopic (5) and ball retainer (10) is 58HRC or more, and material core structure is hard
Degree is 25-32HRC.
8. in one kind according to claim 1, light commercial vehicle turn to high-intensitive countershaft assembly, it is characterised in that: institute
It is 20mm-30mm that axis, which is stated, with the distance between two elastic springs (8).
9. in one kind according to claim 1, light commercial vehicle turn to high-intensitive countershaft assembly, it is characterised in that: institute
Steel ball (9) is stated to be grouped with 0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821147158.1U CN208686838U (en) | 2018-07-19 | 2018-07-19 | In one kind, light commercial vehicle turn to high-intensitive countershaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821147158.1U CN208686838U (en) | 2018-07-19 | 2018-07-19 | In one kind, light commercial vehicle turn to high-intensitive countershaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208686838U true CN208686838U (en) | 2019-04-02 |
Family
ID=65881143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821147158.1U Active CN208686838U (en) | 2018-07-19 | 2018-07-19 | In one kind, light commercial vehicle turn to high-intensitive countershaft assembly |
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| Country | Link |
|---|---|
| CN (1) | CN208686838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202876A (en) * | 2021-04-30 | 2021-08-03 | 中国重汽集团济南动力有限公司 | Transmission shaft assembly for commercial vehicle with long wheelbase |
| CN114412935A (en) * | 2021-12-27 | 2022-04-29 | 北方重工集团有限公司 | Ball type steering transmission shaft structure of passenger car |
-
2018
- 2018-07-19 CN CN201821147158.1U patent/CN208686838U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202876A (en) * | 2021-04-30 | 2021-08-03 | 中国重汽集团济南动力有限公司 | Transmission shaft assembly for commercial vehicle with long wheelbase |
| CN114412935A (en) * | 2021-12-27 | 2022-04-29 | 北方重工集团有限公司 | Ball type steering transmission shaft structure of passenger car |
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