CN207554765U - A kind of ball type anti-attrition gasket construction - Google Patents
A kind of ball type anti-attrition gasket construction Download PDFInfo
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- CN207554765U CN207554765U CN201721693016.0U CN201721693016U CN207554765U CN 207554765 U CN207554765 U CN 207554765U CN 201721693016 U CN201721693016 U CN 201721693016U CN 207554765 U CN207554765 U CN 207554765U
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- oscillating lever
- jackshaft
- ball
- level
- lever bearing
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- Earth Drilling (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a kind of ball type anti-attrition gasket constructions, including jackshaft, needle bearing, ball-type anti-attrition gasket, the needle bearing is mounted on the installation step inside Oscillating lever bearing right end, the Oscillating lever bearing is sleeved on jackshaft stage casing, the jackshaft right end is set with level-one gear wheel, the ball-type anti-attrition gasket is sleeved between level-one gear wheel and Oscillating lever bearing on jackshaft, the level-one gear wheel is connected rotor, and the Oscillating lever bearing left end is fixedly connected with hammer shelves clutch.Using ball-type anti-attrition flat shim between the utility model level-one gear wheel and Oscillating lever bearing, Oscillating lever bearing inside needle bearing can accommodate more lubricant greases, and the probability that jackshaft rotation drives Oscillating lever bearing to swing can decline；Position movement before and after Oscillating lever bearing, makes the gap of Oscillating lever bearing, ball-type anti-attrition gasket, level-one gear wheel be varied down under contact condition, coefficient of friction very little, the probability for Oscillating lever bearing being driven to swing during level-one bull gear drive can be obviously reduced.
Description
Technical field
The utility model is related to electric hammer fields, particularly relate to a kind of ball type anti-attrition gasket construction.
Background technology
Flat shim is used between prior art level-one gear wheel and Oscillating lever bearing（Gap 0.1-0.3mm）, in Oscillating lever bearing
Portion's copper sheathing.It is using to after 5 hours, since oil content reduction is not enough lubrication, meeting when jackshaft rotates in copper sheathing
The swing of Oscillating lever bearing is driven, Oscillating lever bearing has front and rear position movement, makes Oscillating lever bearing, flat shim, level-one gear wheel
Gap becomes smaller or even the contact condition in face and face, and coefficient of friction is larger, and gear wheel can drive the rotation of flat shim in rotation
With the swing of Oscillating lever bearing.There is slight hammering while user works under " seeking loopholes " state and may appear in brill at this time
Phenomenon（Band of referred to as seeking loopholes hammers phenomenon into shape）If at this moment drilled on the steel plate with fluted drill will accelerate drill bit abrasion and damage and
The design service life of machine is not achieved in the reduced lifetime of Oscillating lever bearing.
Invention content
The purpose of this utility model is to provide a kind of ball type anti-attrition gasket construction, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the utility model provides following technical solution：A kind of ball type anti-attrition gasket construction, packet
Jackshaft, needle bearing, ball-type anti-attrition gasket are included, the needle bearing is mounted on the installation step inside Oscillating lever bearing right end
On, the Oscillating lever bearing is sleeved on jackshaft stage casing, and the jackshaft right end is set with level-one gear wheel, the ball-type anti-attrition gasket
It is sleeved on jackshaft between level-one gear wheel and Oscillating lever bearing, the level-one gear wheel is connected rotor, the pendulum
Rod bearing left end is fixedly connected with hammer shelves clutch, and the hammer shelves clutch sleeve is on jackshaft.
Preferably, whole smearing lubricating grease of the jackshaft, the needle bearing inside add in lubricating grease.
Preferably, steel ball is set between the level-one gear wheel and jackshaft, and the steel ball size is Φ 3mm, the steel
Ball is mounted in the corresponding groove of jackshaft, and the steel ball is connected with level-one gear wheel endoporus interference fit.
Preferably, the fit clearance between the ball-type anti-attrition flat shim and Oscillating lever bearing and level-one gear wheel is 0.1mm
To 0.3mm.
Compared with prior art, the beneficial effects of the utility model are as follows：
The utility model provides a kind of ball type anti-attrition gasket construction, and ball is used between level-one gear wheel and Oscillating lever bearing
Type anti-attrition flat shim（Gap 0.1-0.3mm）, Oscillating lever bearing inside needle bearing, the internal clearance of needle bearing can accommodate
More lubricant greases, can play better lubrication, and the probability that jackshaft rotation drives Oscillating lever bearing to swing can decline；Pendulum shaft
Position movement after brought forward, makes the gap of Oscillating lever bearing, ball-type anti-attrition gasket, level-one gear wheel be varied down under contact condition, this
When three parts between contact contacted by original face with face and become a little contact with putting, in addition there is the lubrication of lubricating grease, grind
Coefficient very little is wiped, the probability for Oscillating lever bearing being driven to swing during level-one bull gear drive can be obviously reduced.It is using to 30 hours
It just will appear the phenomenon that seeking loopholes band hammer afterwards, have reached the design service life of machine at this time.
Description of the drawings
Fig. 1 is a kind of ball type anti-attrition gasket construction sectional view.
In figure：1st, jackshaft；2nd, needle bearing；3rd, ball-type anti-attrition gasket；4th, Oscillating lever bearing；5th, shelves clutch is hammered into shape；6th, one
Grade gear wheel；7th, steel ball；8th, rotor.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of technical solution：A kind of ball type anti-attrition gasket construction, including in
Countershaft 1, needle bearing 2, ball-type anti-attrition gasket 3, the needle bearing 2 are mounted on the installation step inside 4 right end of Oscillating lever bearing
On, the Oscillating lever bearing 4 is sleeved on 1 stage casing of jackshaft, 1 right end of the jackshaft suit level-one gear wheel 6, the ball-type anti-attrition
Gasket 3 is sleeved between level-one gear wheel 6 and Oscillating lever bearing 4 on jackshaft 1, and the level-one gear wheel 6, which is connected, to be turned
Son 8,4 left end of Oscillating lever bearing are fixedly connected with hammer shelves clutch 5, and the hammer shelves clutch 5 is sleeved on jackshaft 1.It is described
1 whole smearing lubricating grease of jackshaft, 2 inside of needle bearing add in lubricating grease.The level-one gear wheel 6 and jackshaft 1 it
Between set steel ball 7,7 a diameter of Φ 3mm of steel ball, the steel ball 7 be mounted on 1 corresponding groove of jackshaft in, the steel ball 7
It is interference fitted and connects with 6 endoporus of level-one gear wheel.Between the ball-type anti-attrition flat shim 3 and Oscillating lever bearing 4 and level-one gear wheel 6
Fit clearance for 0.1 to 0.3mm.
Embodiment：
1. assembling process：The tooling of needle bearing 2 is pressed into Oscillating lever bearing 4, forms a widgets, and in needle bearing
Lubricating grease is added in 2；1 whole smearing lubricating grease of jackshaft, then 4 widgets of Oscillating lever bearing are inserted in jackshaft 1；By ball-type anti-attrition
Gasket 3 is inserted in jackshaft 1；Steel ball 7 is packed into jackshaft 1；Level-one gear wheel 6 is inserted in jackshaft 1 and is oriented to shelves, then be put into togerther
Level-one gear wheel 6 is press-fit into place by special tooling.
2. motion principle：The rotation of rotor 8 drives level-one gear wheel 6 to rotate；Level-one gear wheel 6 passes through steel ball 7 and interference volume
Cooperation drive jackshaft 1 rotate；Jackshaft 1 drives hammer shelves clutch 5 to rotate；Hammer shelves clutch 5 drives Oscillating lever bearing 4 to revolve
Turn, swing, generate hammering function.
Ball-type anti-attrition flat shim 3 is used between level-one gear wheel 6 and Oscillating lever bearing 4（Gap 0.1-0.3mm）, Oscillating lever bearing
4 inside needle bearings 2, the internal clearance of needle bearing 2 can accommodate more lubricant greases, can play better lubrication,
The probability that the rotation of jackshaft 1 drives Oscillating lever bearing 4 to swing can decline；Before and after Oscillating lever bearing 4 position movement, make Oscillating lever bearing 4,
Ball-type anti-attrition gasket 3, level-one gear wheel 6 gap be varied down under contact condition, the contact between three parts is by original at this time
Face contacted with face become a little with put contact, in addition there is the lubrication of lubricating grease, coefficient of friction very little, level-one gear wheel 6 rotates
When drive Oscillating lever bearing 4 swing probability can be obviously reduced.It just will appear the phenomenon that seeking loopholes band hammer after using to 30 hours,
The design service life of machine is had reached at this time.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case of the principle and spirit for not departing from the utility model, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of ball type anti-attrition gasket construction, including jackshaft（1）, needle bearing（2）, ball-type anti-attrition gasket（3）, it is special
Sign is, the needle bearing（2）Mounted on Oscillating lever bearing（4）On installation step inside right end, the Oscillating lever bearing（4）Set
Mounted in jackshaft（1）Stage casing, the jackshaft（1）Right end is set with level-one gear wheel（6）, the ball-type anti-attrition gasket（3）It is located at
Level-one gear wheel（6）And Oscillating lever bearing（4）Between be sleeved on jackshaft（1）On, the level-one gear wheel（6）Be connected rotor
（8）, the Oscillating lever bearing（4）Left end is fixedly connected with hammer shelves clutch（5）, the hammer shelves clutch（5）It is sleeved on jackshaft（1）
On.
A kind of 2. ball type anti-attrition gasket construction according to claim 1, which is characterized in that the jackshaft（1）It is whole
Root smears lubricating grease, the needle bearing（2）Inside adds in lubricating grease.
A kind of 3. ball type anti-attrition gasket construction according to claim 1, which is characterized in that the level-one gear wheel
（6）And jackshaft（1）Between steel ball is set（7）, the steel ball（7）A diameter of Φ 3mm, the steel ball（7）Mounted on jackshaft
（1）In corresponding groove, the steel ball（7）With level-one gear wheel（6）Endoporus interference fit connection.
A kind of 4. ball type anti-attrition gasket construction according to claim 1, which is characterized in that the ball-type anti-attrition plain cushion
Piece（3）With Oscillating lever bearing（4）With level-one gear wheel（6）Between fit clearance for 0.1 to 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721693016.0U CN207554765U (en) | 2017-12-07 | 2017-12-07 | A kind of ball type anti-attrition gasket construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721693016.0U CN207554765U (en) | 2017-12-07 | 2017-12-07 | A kind of ball type anti-attrition gasket construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554765U true CN207554765U (en) | 2018-06-29 |
Family
ID=62666262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721693016.0U Active CN207554765U (en) | 2017-12-07 | 2017-12-07 | A kind of ball type anti-attrition gasket construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554765U (en) |
-
2017
- 2017-12-07 CN CN201721693016.0U patent/CN207554765U/en active Active
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