CN208057749U - A kind of Overloading protective coupling and shredder - Google Patents
A kind of Overloading protective coupling and shredder Download PDFInfo
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- CN208057749U CN208057749U CN201820506066.1U CN201820506066U CN208057749U CN 208057749 U CN208057749 U CN 208057749U CN 201820506066 U CN201820506066 U CN 201820506066U CN 208057749 U CN208057749 U CN 208057749U
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Abstract
The utility model discloses a kind of Overloading protective coupling and shredders, belong to shredder technical field.It includes adjusting nut, first end cover, spring, spring base, steel ball, baffle ring, thrust ball bearing and second end cover, spring base offers connecting hole along central axis, it connects internal surface of hole and is equipped with the first keyway, spring base is equipped with several first through hole and is arranged concentrically with connecting hole, spring built in first through hole, one end of spring is against first end cover, and the other end is against steel ball；Second end cover is corresponding with first through hole quantity equipped with the second through-hole, and steel ball is resisted against on the second through-hole；Thrust ball bearing is placed in second end cover, by retainer ring spacing；Adjusting nut top pressure holds out against steel ball in first end cover, by applying pressure.The utility model is simple in structure, can provide torsion transmission, safe and reliable, is applicable in the axis connection of various models, and install, convenient disassembly.
Description
Technical field
The utility model belongs to shredder technical field, more specifically to a kind of Overloading protective coupling and tears up
Machine.
Background technology
Shredder be exactly it is a kind of be used as machine fine crushing, be generally used for handling crude raw material or leftover pieces, make
Its size is more tiny.Representative example is made after being melted as raw material after tearing up the leftover pieces of plastics or rubber
Grain, for remaking plastic bottle, tire or dustbin etc..Shredder is applied to plastics recovery and regenerates industry, is usually used in giving up
Product heavy caliber PE plastic pipes bundled are packaged the broken of plastic film, big pile plastic sheet and Head material.But current shredder
To be directly connected to by shaft coupling and cutter shaft using speed reducer, many times shredder encounter during the work time tear it is motionless
When, then can cause speed reducer want rotation but torn part blocked with cutter and babinet it is inactive, if worker does not have found in time
Damage can be generated to speed reducer and cutter, motor overload when serious and damage.
In order to solve the above technical problems, through retrieval, patent document 1：Chinese patent CN201610420540.4 is disclosed
A kind of antioverloading shaft coupling, it includes shell, driving disc spacing pressing, steel ball, gasket, spring and follower disk, shell is separate structure
Component, positioned at fifty-fifty of left and right end, shell is tightened by bolts, driving disc spacing pressing and follower disk pairing be placed in housing cavity it
In, the axial hole built in the two is coaxial, on the faying face of driving disc spacing pressing and follower disk on the same circumference be evenly distributed with 6~12 pairing and
If pit, it is semicircle to be located at pit in active side surface, and the pit being located in servo-actuated side surface is blind cylindrical hole, is matched
To pit in placement be made of steel ball, gasket and spring the antioverloading structure of embedded elastic bearing.Patent document 2：In
State patent CN201110256824.1 discloses a kind of overload protection type coupling, including left connector sleeve, plane bearing, steel ball
Ball, butterfly spring, right connector sleeve, fixed plate, stud, adjusting bolt, the invention are equipped with symmetrical left connector sleeve and right company
The flange position of female connector, left connector sleeve and right connector sleeve is relatively close, left connector sleeve and outside point above and below the flange of right connector sleeve
Fixed plate there are one connecting is installed by plane bearing, is fixed by stud between each two fixed plates of upper and lower both sides,
Left connector sleeve is respectively arranged with steel ball up and down with right connector sleeve, and through-hole, the outer end of through-hole are arranged on the flange face of right connector sleeve
It is provided with adjusting bolt, in the through-hole of adjusting bolt end, is provided with butterfly spring, butterfly spring fitting compresses steel ball.Patent
Document 3：Chinese patent CN201210534650.5 discloses a kind of overload protection type coupling, it is by left connector sleeve and connector
Sleeve connection is fixed together, and the fixed ring gear of installation is installed at adapter sleeve inner port position, between the internal tooth of ring gear
External toothing is set, face-flange is provided between external toothing and adapter sleeve, the two sides riveting of face-flange is fixed with friction
Piece, right connector sleeve is connected and fixed by the interstitial hole of external toothing and the centre of face-flange, in the port part of adapter sleeve
Fixed end cap is installed in position by bolt, and butterfly spring is provided on the right connector sleeve between end cap and external toothing.Patent document
4：Chinese patent CN201520244092.8 discloses a kind of limit power shaft coupling, including left semi-coupler and right semi-coupler,
It is characterized in that have the spaced steel ball ball groove that several concave on the interface of left semi-coupler, steel ball ball groove two-by-two
Between by on interface radially concave and the sliding slot of arc connects；It is provided on right semi-coupler and steel ball
Ball groove corresponding through-hole is equipped with steel ball between one end and steel ball ball groove of through-hole, be equipped with spring in through-hole, through-hole it is another
Clamp nut is installed in end；Patent document 5：Chinese patent CN99210909.4 discloses a kind of drilling machine safety clutch
Device, including gear, gear bush, steel ball, spring, half-clutch device, axis, thrust ball bearing, fulcrum bearing, key, stop washer, spiral shell
Mother, when load is less than limit value, which plays the role of shaft coupling, and when the load is large, which plays the work of clutch
With, and can be with the reduction of load, the automatic effect for restoring shaft coupling, can safeguard protection drilling machine parts.
By the structure for analyzing above-mentioned patent, it is found that on the one hand due to the limitation of structure, shaft coupling replacement is caused to be torn open
Unload difficulty；The torque of another aspect shaft coupling can not be adjusted, and cause the range that product uses more single.
Invention content
1. to solve the problems, such as
After being installed for existing shaft coupling, the problem of difficult and torque can not be adjusted, this practicality are dismantled when replacing
A kind of novel Overloading protective coupling of offer, it is simple in structure, torsion transmission can be provided, it is safe and reliable, it is applicable in various types
Number axis connection, and install, convenient disassembly.
The utility model also provides a kind of shredder with above-mentioned Overloading protective coupling, when shredder is blocked by object
When, shaft coupling can play protection speed reducer and cutter, avoid speed reducer and tool damage.
2. technical solution
To solve the above-mentioned problems, technical solution used by the utility model is as follows：
A kind of Overloading protective coupling of the utility model, including adjusting nut, first end cover, spring, spring base, steel ball
Ball, baffle ring, thrust ball bearing and second end cover, the spring base offer connecting hole along central axis, and connection internal surface of hole is set
There are the first keyway, spring base to be equipped with several first through hole and be arranged concentrically with connecting hole, spring built in first through hole, spring
One end is against first end cover, and the other end is against steel ball；The second end cover is equipped with the second through-hole and first through hole quantity pair
It answers, steel ball is resisted against on the second through-hole；The thrust ball bearing is placed in second end cover, by retainer ring spacing；The adjusting spiral shell
Female top pressure holds out against steel ball in first end cover, by applying pressure.
In a kind of possible embodiment of the utility model, the side of the adjusting nut is equipped with opening, and opening is set
There is threaded hole, bolt is set in threaded hole, by bolt to prevent the relative rotation of nut and fastener, plays the work(of locking
Energy.
In a kind of possible embodiment of the utility model, the first end cover is equipped with fixed groove and first through hole
Quantity corresponds to, and axle sleeve is welded on the inside of first end cover, and the width of axle sleeve is 2-3 times of first end cover width.
In a kind of possible embodiment of the utility model, the diameter D1 of the first through hole is more than the straight of the second through-hole
Diameter D2, and the diameter D3 of steel ball is slightly larger than the diameter D2 of the second through-hole.
In a kind of possible embodiment of the utility model, the diameter of the second through-holes of diameter D1=of the first through hole
D2+ (0.1-0.15) mm, and diameter D2+ (0.05-0.08) mm of the second through-holes of diameter D3=of steel ball.
In a kind of possible embodiment of the utility model, the outer diameter of the baffle ring is more than the outer diameter of thrust ball bearing,
Baffle ring is installed in second end cover.
In a kind of possible embodiment of the utility model, the axle sleeve offers the second keyway on the inside of axis.
In a kind of possible embodiment of the utility model, the spring is torque spring.
The utility model additionally provides a kind of shredder, including shredder ontology, speed reducer and shaft coupling, the shaft coupling
For above-mentioned Overloading protective coupling.
3. advantageous effect
Compared with the prior art, the beneficial effects of the utility model are：
(1) Overloading protective coupling of the utility model comprising adjusting nut, first end cover, spring, spring base, steel
Pearl ball, baffle ring, thrust ball bearing and second end cover, these components constitute split type shaft coupling, wherein adjusting nut and first
End cap not only can be used for adjusting the load of shaft coupling, meet requirement, and can transmit high torque；The side of dismounting simultaneously
Just, the speed for replacing maintenance is improved, ensures the normal production of enterprise；
(2) Overloading protective coupling of the utility model, is arranged bolt on adjusting nut, by bolt to prevent nut
With the relative rotation of fastener, the function of locking is played, shaft coupling is effectively prevented and generates loosening during high-speed rotation；
(3) Overloading protective coupling of the utility model, is welded with axle sleeve on the inside of first end cover, and the width of axle sleeve is the
2-3 times of one endcap width so that axle sleeve stretches out first end cover, and axle sleeve has wear-resisting property well, prevents first end cover from grinding
Damage；
(4) Overloading protective coupling of the utility model, wherein the diameter D1 of first through hole are more than the diameter of the second through-hole
D2, and the diameter D3 of steel ball is slightly larger than the diameter D2 of the second through-hole, such design ensure that steel ball will not be completely into
In first through hole, while steel ball will not be completely into the second through-hole so that steel ball is in stress always, avoids
It is stuck to there is steel ball；
(5) shredder of the utility model, is equipped with Overloading protective coupling, and the shaft coupling is by speed reducer and cutter shaft
Connection, adjusting nut to suitable position, when shredder works, cutter shaft, which is encountered object and blocked, tears motionless, and shaft coupling starts work
Make, the steel ball under spring is skidded, and the cutter shaft of shredder does not turn, speed reducer normal work, and can adjust spiral shell according to demand
Mother can exchange the load that shaft coupling skidding is born, to protect speed reducer and cutter injury-free；
(6) the utility model is simple in structure, reasonable design, easily fabricated.
Description of the drawings
The technical solution of the utility model is described in further detail below with reference to drawings and examples, still
It should be known that these attached drawings only design for task of explanation, therefore not as the restriction of the scope of the utility model.In addition,
Unless otherwise indicated, these attached drawings are meant only to conceptually illustrate structure construction described herein, without to carry out to scale
It draws.
Fig. 1 is the structural schematic diagram of the utility model Overloading protective coupling；
Fig. 2 is the structural schematic diagram of the utility model shredder.
Description of symbols in figure：
10, adjusting nut；101, threaded hole；11, first end cover；111, fixed groove；112, axle sleeve；113, the second key
Slot；12, spring；13, spring base；131, connecting hole；132, the first keyway；133, first through hole；14, steel ball；15, baffle ring；
16, thrust ball bearing；17, second end cover；171, the second through-hole；18, shredder ontology；19, speed reducer.
Specific implementation mode
Hereafter to the detailed description of the exemplary embodiment of the utility model with reference to attached drawing, which forms the one of description
Part has been shown as example the enforceable exemplary embodiment of the utility model in the figure.Although these exemplary realities
Example is applied to be described in sufficient detail so that those skilled in the art can implement the utility model, it is to be understood that it can be realized
His embodiment and can various changes can be made to the utility model in the case where not departing from the spirit and scope of the utility model.Hereafter
Required the scope of the utility model is not limited to the more detailed description of the embodiments of the present invention, and only
The description of the characteristics of in order to be illustrated and not limit to the utility model and feature, to propose to execute the utility model
Best mode, and it is sufficient to make those skilled in the art that can implement the utility model.Therefore, the scope of the utility model only by
Appended claims limit.
Hereafter the detailed description of the utility model and example embodiment are more fully understood in combination with attached drawing, wherein this reality
It is identified by reference numeral with novel element and feature.
Referring to Fig. 1, Fig. 2, the Overloading protective coupling of a preferred embodiment according to the present utility model is described, wherein Fig. 1
For the Overloading protective coupling structural schematic diagram of the present embodiment 1；Fig. 2 is the shredder structural schematic diagram of the present embodiment 2.
Embodiment 1
As shown in Figure 1, a kind of Overloading protective coupling of the present embodiment, including adjusting nut 10, first end cover 11, spring
12, spring base 13, steel ball 14, baffle ring 15, thrust ball bearing 16 and second end cover 17, spring base 13 are offered along central axis
Connecting hole 131,131 inner surface of connecting hole are equipped with the first keyway 132, set on spring base 13 there are four first through hole 133 and with even
It connects hole 131 to be arranged concentrically, four first through hole 133 are located on four quadrantal points, spring 12, bullet built in first through hole 133
Spring 12 is torque spring 12, and one end of spring 12 is against first end cover 11, and the other end is against steel ball 14；It is set in second end cover 17
There is the second through-hole 171 corresponding with 133 quantity of first through hole, steel ball 14 is resisted against on the second through-hole 171；Thrust ball bearing 16 is set
In in second end cover 17, limited by baffle ring 15；10 top pressure of adjusting nut holds out against steel ball in first end cover 11, by applying pressure
Ball 14.
When the shaft coupling of the present embodiment is installed in place and makees normal torque transmission, under the elastic bearing of spring 12, steel ball
Ball 14 is between spring base 13 and second end cover 17, once it overloads, moment hair between spring base 13 and second end cover 17
Raw nonsynchronous relative motion, i.e., spring base 13 is static, and second end cover 17 continues to rotate, and steel ball 14 overcomes spring 12 at this time
Elastic force and be fully sunk in first through hole 133, to complete overload protection, entire protection act is quick, reliable, avoids overloading
Damage to corollary equipment.When overload eliminate after, in the case where the elastic force of spring 12 pushes, steel ball 14 is in time from the of spring base 13
It is popped up in one through-hole 133 so that second end cover 17 and 13 synchronous rotary of spring base.
The shaft coupling of the present embodiment is for connecting the output shafts such as 19 motor of speed reducer, under the drive of output shaft, shaft coupling
Device high-speed rotation, therefore, shaft coupling need to carry out anti-loosening processing, specifically：The side of adjusting nut 10 is equipped with opening, opening
Place is equipped with threaded hole 101, and bolt is arranged in threaded hole 101, by bolt to prevent the relative rotation of nut and fastener, plays
The function of locking.
As shown in Figure 1, first end cover 11 is corresponding with 133 quantity of first through hole equipped with fixed groove 111, first end cover 11
Inside is welded with axle sleeve 112, and the width of axle sleeve 112 is 2-3 times of 11 width of first end cover, and bottom bracket axle 112 is on the inside of axis
Offer the second keyway 113.
The axle sleeve 112 it is well known that shaft coupling during high speed operation, can constantly rub, thus it requires axle sleeve 112 has
There are high intensity and anti-brittle failure, inventor is by a large amount of experiment and analyzes, and the constituent mass percentage of axle sleeve 112 is：C：
0.23-0.25%, Mn：0.55-0.78%, Si：0.20-0.36%, Co：0.39-0.58%, Cr：1.2-1.5%, V：1.1-
1.2%, Ni：0.85-1.02%, S：≤ 0.020%, P：≤ 0.020%, surplus Fe；Wherein meet Cwt+Mnwt=Siwt+
Cowt, the blank of axle sleeve 112 is by the first stage：Room temperature~580 DEG C：Blank is heated to 580 DEG C by room temperature, heating time is
45-55min；Second stage：580 DEG C~780 DEG C：Blank is heated to 780 DEG C by 580 DEG C, control heating time is 15-
20min keeps the temperature 60-80min；Phase III：780 DEG C~1250 DEG C：Blank is heated to 1250 DEG C by 780 DEG C, control heating
Time is 60-70min, keeps the temperature 40-45min；Fourth stage：1250 DEG C~1350 DEG C：Blank is heated to 1350 by 1250 DEG C
DEG C, control heating time is 15-20min, keeps the temperature 30-40min, it is heat treated after blank inside to be nearly free from be crackle,
Body tissue is fine and close.
In addition, the diameter D1 of first through hole 133 is more than the diameter D2 of the second through-hole 171, and the diameter D3 of steel ball 14 is omited
More than the diameter D2 of the second through-hole 171, specifically：The diameter D2+ of the second through-holes of diameter D1=171 of first through hole 133
0.1mm, and the diameter D2+0.08mm of the second through-holes of diameter D3=171 of steel ball 14.The diameter D3 of steel ball 14 is less than first
The diameter D1 of through-hole 133, therefore, in the second through-hole of entrance 171 that steel ball 14 can be much smoother.
In the present embodiment, the outer diameter of baffle ring 15 is more than the outer diameter of thrust ball bearing 16, and baffle ring 15 is installed on second end cover
In 17, since thrust ball bearing 16 needs to work in the state of oil refill, in shaft coupling high-speed rotation, it will certainly make
It is thrown away at lubricating oil, therefore, baffle ring 15 needs have wear-resisting property and sealing performance well, under such performance condition,
The constituent mass percentage of baffle ring 15 is：Iron 94-95%, carbon 0.3-0.5%, copper 1.5-2%, nickel 2.5-3%, manganese 0.2-
0.3%, other impurity components are less than 1%, and it is 100% that weight ratio, which weighs,.
Embodiment 2
As shown in Fig. 2, the utility model additionally provides a kind of shredder, including shredder ontology 18, speed reducer 19 and connection
Axis device, shaft coupling are the Overloading protective coupling of embodiment 1.
It is equipped with Overloading protective coupling, and by speed reducer 19 and cutter axis connection, adjusting nut 10 arrives to be closed the shaft coupling
Right position is set, and when shredder works, cutter shaft, which is encountered object and blocked, tears motionless, and shaft coupling is started to work, the steel ball under spring 12
Ball 14 skids, and the cutter shaft of shredder does not turn, and speed reducer 19 works normally, and can according to demand, and adjusting nut 10 can be adjusted
The load that shaft coupling skidding is born is changed, to protect speed reducer 19 and cutter injury-free.
Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing
Shown in also be the utility model one of embodiment, actual structure is not limited to this.So if this field
Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design
Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (9)
1. a kind of Overloading protective coupling, which is characterized in that including adjusting nut (10), first end cover (11), spring (12), bullet
Spring abutment (13), steel ball (14), baffle ring (15), thrust ball bearing (16) and second end cover (17), the spring base (13) is in
Mandrel line offers connecting hole (131), and connecting hole (131) inner surface is equipped with the first keyway (132), and spring base (13) is if be equipped with
It does first through hole (133) and is arranged concentrically with connecting hole (131), spring (12) built in first through hole (133), the one of spring (12)
End is against first end cover (11), and the other end is against steel ball (14)；The second end cover (17) be equipped with the second through-hole (171) with
First through hole (133) quantity corresponds to, and steel ball (14) is resisted against on the second through-hole (171)；The thrust ball bearing (16) is placed in
In second end cover (17), limited by baffle ring (15)；Adjusting nut (10) top pressure is pressed in first end cover (11) by applying
Power holds out against steel ball (14).
2. Overloading protective coupling according to claim 1, which is characterized in that the side of the adjusting nut (10) is equipped with
Opening, opening are equipped with threaded hole (101), bolt are arranged in threaded hole (101).
3. Overloading protective coupling according to claim 2, which is characterized in that the first end cover (11), which is equipped with, fixes
Groove (111) is corresponding with first through hole (133) quantity, and axle sleeve (112) is welded on the inside of first end cover (11), axle sleeve (112)
Width is 2-3 times of first end cover (11) width.
4. Overloading protective coupling according to claim 3, which is characterized in that the diameter D1 of the first through hole (133)
More than the diameter D2 of the second through-hole (171), and the diameter D3 of steel ball (14) is slightly larger than the diameter D2 of the second through-hole (171).
5. Overloading protective coupling according to claim 4, which is characterized in that the diameter D1 of the first through hole (133)
Diameter D2+ (0.1-0.15) mm of=the second through-hole (171), and the second through-holes of diameter D3=(171) of steel ball (14) is straight
Diameter D2+ (0.05-0.08) mm.
6. Overloading protective coupling according to claim 5, which is characterized in that the outer diameter of the baffle ring (15) is more than thrust
The outer diameter of ball bearing (16), baffle ring (15) are installed in second end cover (17).
7. Overloading protective coupling according to claim 6, which is characterized in that the axle sleeve (112) is opened on the inside of axis
Equipped with the second keyway (113).
8. Overloading protective coupling according to claim 7, which is characterized in that the spring (12) is torque spring.
9. a kind of shredder, including shredder ontology (18), speed reducer (19) and shaft coupling, which is characterized in that the shaft coupling
For claim 1 to 8 any one of them Overloading protective coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820506066.1U CN208057749U (en) | 2018-04-10 | 2018-04-10 | A kind of Overloading protective coupling and shredder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820506066.1U CN208057749U (en) | 2018-04-10 | 2018-04-10 | A kind of Overloading protective coupling and shredder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057749U true CN208057749U (en) | 2018-11-06 |
Family
ID=63985068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820506066.1U Active CN208057749U (en) | 2018-04-10 | 2018-04-10 | A kind of Overloading protective coupling and shredder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827802A (en) * | 2019-03-12 | 2019-05-31 | 北京铁城信诺工程检测有限公司 | Sand replacement method measures compactness with taking indigenous equipment |
-
2018
- 2018-04-10 CN CN201820506066.1U patent/CN208057749U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827802A (en) * | 2019-03-12 | 2019-05-31 | 北京铁城信诺工程检测有限公司 | Sand replacement method measures compactness with taking indigenous equipment |
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