CN203431048U - Overloading-breakage preventing transmission shaft - Google Patents
Overloading-breakage preventing transmission shaft Download PDFInfo
- Publication number
- CN203431048U CN203431048U CN201320547827.5U CN201320547827U CN203431048U CN 203431048 U CN203431048 U CN 203431048U CN 201320547827 U CN201320547827 U CN 201320547827U CN 203431048 U CN203431048 U CN 203431048U
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- connecting body
- coupling
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- bolt
- bearing
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Abstract
The utility model discloses an overloading-breakage preventing transmission shaft which comprises a first half coupling, a second half coupling, a first connecting body, a second connecting body, a sleeve and a safety pin. The left end of the first half coupling is in key connection with a gear box input shaft, and the right end of the second half coupling is in key connection with a main motor output shaft. The right side of the first half coupling is fixedly connected with the second connecting body through a bolt, a shaft head is welded at the left end of the first connecting body and can be inserted into a cavity shaft inside the right end of the second connecting body to be axially fixed and rotate radially, and the right end of the first connecting body is fixedly connected with the second half coupling through a bolt. The overloading-breakage preventing transmission shaft can serve as a substitute of large-torque transmission shafts used by grinding devices or other heavy machines, the safety and the reliable performance of the devices are improved, and relevant devices and workers can be well protected against damaged or harmed. In addition, the maintenance cost and the maintenance time can be greatly decreased, the production efficiency is effectively improved, and the brought economic benefit is very considerable.
Description
Technical field
The utility model relates to a kind of transmission shaft that prevents overload fracture.
Background technique
The milling equipment main drive shaft output torque of current domestic use is large, stressed complexity, operating mode is severe, once because of overload or fatigue failure cause axle fracture, two sections of axles of fracture can fall downwards because of Action of Gravity Field, the impact producing easily causes main equipment to damage, and personnel casualty accidents likely occurs, and to user, brings serious loss; And more renew axle, and goods and materials waste is larger, changes workload also very large, the expense that wastes time and energy fund, and delay the production time, the needed time that resumes production is longer.
Therefore invent a kind of transmission shaft that can prevent that overload from rupturing and become technical barrier urgently to be resolved hurrily.
Summary of the invention
The utility model is for the proposition of above problem, and a kind of transmission shaft that prevents overload fracture of research and design, large in order to solve existing transmission shaft output torque, stressed complexity, operating mode is severe, once because of overload or fatigue failure cause axle fracture, two sections of axles of fracture can fall downwards because of Action of Gravity Field, the impact producing easily causes main equipment to damage, and the shortcoming of personnel casualty accidents likely occurs.The technological means that the utility model adopts is as follows:
A transmission shaft that prevents overload fracture, comprising: half-coupling one and half-coupling two, the left end of described half-coupling one is connected with key with gearbox input shaft, and half-coupling two right-hand members and main motor output shaft link together with key, characterized by further comprising: connecting body one, connecting body two, cover and safety pin, described half-coupling one right side has been bolted to connection connecting body two, the left end of described connecting body one is welded with spindle nose, described spindle nose can insert the right-hand member internal cavities axial restraint of connecting body two, radial rotary, described connecting body one right-hand member is fixed together by bolt and half-coupling two, described connecting body one and connecting body two adpting flange places are 180 ° and arrange two safety pins, each safety pin is furnished with cover and axle end baffle plate, described each cover is that cup-like structure arranged in pairs forms dress, two-part of described paired glass holder are fixed together by safety pin and axle end baffle plate.
As preferred described half-coupling one and half-coupling two, adopt drum-shaped tooth type.
In cavity as preferred described connecting body two, be provided with two bearings, between described two bearings, be provided with distance ring three, the bearing outer ring left side of described left end is provided with distance ring two, inner ring left side is provided with round nut and the lock washer being connected with connecting body one left end spindle nose axial restraint, described connecting body two passes on left bolt having closed end cap, and described end cap makes bearing outer ring axially locating by distance ring two; The right-hand member of the bearing of described right-hand member is provided with slider, and described slider is to bearing outer ring axially locating, and slider outside is provided with O-ring seals, and inner side is provided with lip-type packing; The flange connections of described connecting body one and connecting body two is provided with sealing gasket.
As preferred described bearing, it is selfaligning roller bearing; Described O-ring seals is located in the groove in slider outside, and lip-type packing is located at slider inner side and is realized its axially locating by means of the shaft shoulder of connecting body one.
As having tapped hole and circular hole on the outer wall of preferred described connecting body two and distance ring three, in this position, plug screw is installed, described tapped hole and circular hole and plug screw support the use, and are circumferentially laid with three groups.
As being folded with distance ring one between preferred described half-coupling two and connecting body one.
Outside as preferred described cover and safety pin is provided with a safety cover.
Bolt bearing as preferred described half-coupling one and connecting body two is provided with bolt and nut packing ring; The bolt bearing of described half-coupling two and connecting body one is provided with bolt and nut packing ring; The bearing of described safety pin and two paired glass holders is provided with bolt washer.
Compared with the prior art, the utlity model has following advantage:
1, when safety pin is stressed, cross after major rupture, each parts can short time smooth running, the Security that is very beneficial for improving equipment.
2, when safety pin is stressed, cross after major rupture, can be very fast change the use that fixedly works on of new safety pin, from economizing on resources, angle is considered, after overload breakage, the part of scrapping is fewer than traditional spindle, greatly saved maintenance time and the maintenance fund of transmission shaft, can resume production rapidly, to improving production capacity, had very great help.
3, the moment of torsion that transmits two of connecting body one and connecting bodys by safety pin, the safety pin that can be cut by changing difference cross section is controlled the maximum delivered moment of torsion of transmission shaft.
A kind of transmission shaft that prevents overload fracture described in the utility model; can provide alternative for the high pulling torque transmission shaft that milling equipment or other heavy-duty machine equipment are used; the safety and reliability of raising equipment; can protect better relevant device and personnel to preserve from; and can greatly reduce maintenance cost and engineering time; obviously having reduced the equipment off-time can resume production fast, and the economic benefit of bringing is considerable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, half-coupling one, 2, half-coupling two, 3, bolt and nut packing ring, 4, distance ring one; 5, connecting body one, 6, connecting body two, 7, cover, 8, safety pin; 9, bolt washer axle end baffle plate, 10, safety cover, 11, end cap, 12, lock washer; 13, distance ring two, 14, bearing, 15, distance ring three; 16, slider, 17, lip-type packing, 18, O-ring seals; 19, sealing gasket, 20, round nut, 21, plug screw.
Embodiment
As shown in Figure 1, a kind of transmission shaft that prevents overload fracture, comprising: half-coupling 1, half-coupling 22, connecting body 1, connecting body 26, overlap 7 and safety pin 8, the left end of described half-coupling 1 is connected with key with gearbox input shaft, half-coupling 22 right-hand members and main motor output shaft link together with key, by described half-coupling 1 and the half-coupling 22 that prevents the transmission shaft two ends of overload fracture, realize the transmission of moment of torsion from main motor to gear-box, and then driving arrangement work, described half-coupling one 1 right sides have been bolted to connection connecting body 26, make the moment of torsion of connecting body 26 can pass to half-coupling 1, the left end of described connecting body 1 is welded with spindle nose, the spindle nose of described connecting body 1 can insert the right-hand member internal cavities axial restraint of connecting body 26, radial rotary, after being only fixedly connected with by spindle nose with connecting body 26, described connecting body 1 can relatively rotate (not transmitting torque), described connecting body 1 is a long hollow shaft, can realize long apart from moment of torsion transmission, described connecting body one 5 right-hand members are fixed together by bolt and half-coupling 22, make the moment of torsion of described half-coupling 22 can pass to connecting body 1, described connecting body 1 and connecting body 26 adpting flange places are 180 ° and arrange two safety pins 8, each safety pin 8 is furnished with cover 7 and axle end baffle plate, described each cover 7 is that cup-like structure arranged in pairs forms dress, two-part of described paired glass holder 7 are fixed together by safety pin 8 and axle end baffle plate, connecting body 1 and connecting body 26 are realized moment of torsion transmission by overlapping 7 after being fixedly connected with safety pin 8, safe and reliable operation that can support equipment, and by the fracture of safety pin 8, protect main equipment under special circumstances.
Described half-coupling 1 and half-coupling 22 adopt drum-shaped tooth type.In the cavity of described connecting body 26, be provided with two bearings 14, between described two bearings 14, be provided with distance ring 3 15, bearing 14 left sides, outer ring of described left end are provided with distance ring 2 13, inner ring left side is provided with round nut 20 and the lock washer 12 being connected with connecting body one 5 left end spindle nose axial restraints, when described connecting body 1 and connecting body 26 relatively rotate, spindle nose can drive inner ring and round nut 20 and lock washer 12 rotations of two matched bearings 14.
Described connecting body 26 passes on left bolt having closed end cap 11, described end cap 11 makes bearing 14 outer ring axially locating by distance ring 2 13, part in connecting body 26 cavitys is played to proofing dust and protecting effect simultaneously, and the lubricating grease in connecting body 26 cavitys can not revealed to left end; The right-hand member of the bearing 14 of described right-hand member is provided with slider 16,16 pairs of bearings of described slider, 14 outer ring axially locating, and slider 16 outsides are provided with O-ring seals 18, and inner side is provided with lip-type packing 17, the lubricating grease in connecting body 26 cavitys can not revealed to right-hand member; The flange connections of connecting body 1 and connecting body 26 is provided with sealing gasket 19, and described sealing gasket 19 plays proofing dust and protecting effect.
Described bearing 14 is two selfaligning roller bearings; Described O-ring seals 18 is located in the groove in slider 16 outsides, and lip-type packing 17 is located at slider 16 inner sides and is realized its axially locating by means of the shaft shoulder of connecting body one.On the outer wall of described connecting body 26 and distance ring 3 15, have tapped hole and circular hole, in this position, plug screw 21 is installed, described tapped hole and circular hole and plug screw 21 support the use, circumferentially be laid with three groups, plug screw 21 can be opened, and by tapped hole and circular hole, to injecting lubricating grease in connecting body 26 cavitys, bearing 14 is carried out necessary lubricated.
Between described half-coupling 22 and connecting body 1, be provided with distance ring 1.The outside of described cover 7 two ends safety pins 8 is respectively provided with a safety cover 10, and safety cover 10 is used for ensuring safety and does not have bolt washer after pin 8 fracture and collapse and to hurt people and equipment.
The bolt bearing of described half-coupling 1 and connecting body 26 is provided with bolt and nut packing ring 3; The bolt bearing of described half-coupling 22 and connecting body 1 is provided with bolt and nut packing ring 3, described bolt and nut packing ring 3 is used for expanding the area of contact of bolt bolt and fastener half-coupling 1, half-coupling 22, connecting body 1 and connecting body 26 fixedly time, reduce fastening force the stress of fastener is concentrated, prevent from damaging fastener; The bearing of described safety pin 8 and two paired glass holders 7 is provided with bolt washer 9, and described bolt washer 9 is used for expanding safety pin 8 and the area of contact of overlapping the fixed plate of 7 both sides, reduces fastening force the stress of fixed plate is concentrated, and prevents that in using process, fixed plate damages; The spindle nose of connecting body 1 and round nut 20 fixed connection places are provided with lock washer 12, described lock washer 12 increases the area of contact of round nut 20 and bearing 14 inner ring sidewalls, be convenient to round nut 20 by the spindle nose of connecting body 1 the inner chamber axial restraint at connecting body 26, when connecting body 1 and connecting body two are relatively rotated, connecting body 1 can be not separated with connecting body two.
When normal operation, half-coupling 1, half-coupling 22, connecting body 1, connecting body 26 are made the as a whole transmitting torque that together rotates, and each component are without relative movement, when equipment occurs that special circumstances overlond running surpasses the limit of safety pin 8, safety pin 8 is subject to shear fracture, can realize the effect of protection main equipment, electrical system is sent signal shutdown simultaneously, in safety pin 8 fractures, arrive in the blink of main motor stopping, connecting body 1 and connecting body 26 relatively rotate, the spindle nose of connecting body 1 drives selfaligning roller bearing 14 inner rings in connecting body 26 cavitys, together with the lock washer 12 that axle head locking is used with round nut with round nut 20, rotate, a whole like this transmission shaft can not become because of overload breakage two sections and drop respectively or by equipment whipping, but keep the smooth running at short notice of each component, realize its safe and reliable effect.
Reuse while repairing, only two new safety pins 8 need to be resetted and can resume production, unlike traditional transmission shaft, will change whole transmission shaft, former transmission shaft is scrapped, greatly saved maintenance time and the maintenance fund of transmission shaft, can resume production rapidly, to improving production capacity, had very great help.
During adjustment equipment, described a kind of very easy control of maximum delivered moment of torsion that prevents the transmission shaft of overload fracture, in the situation that miscellaneous part allows, the shear(ing) area that only need to redesign safety pin 8 is just passable, and the convenient safe torque of revising adapts to different operating conditions.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; according to the technical solution of the utility model and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection domain of the present utility model.
Claims (8)
1. a transmission shaft that prevents overload fracture, comprising: half-coupling one (1) and half-coupling two (2), the left end of described half-coupling one (1) is connected with key with gearbox input shaft, and half-coupling two (2) right-hand members and main motor output shaft link together with key, characterized by further comprising: connecting body one (5), connecting body two (6), cover (7) and safety pin (8), described half-coupling one (1) right side has been bolted to connection connecting body two (6), the left end of described connecting body one (5) is welded with spindle nose, described spindle nose can insert the right-hand member internal cavities axial restraint of connecting body two (6), radial rotary, described connecting body one (5) right-hand member is fixed together by bolt and half-coupling two (2), described connecting body one (5) and connecting body two (6) adpting flange places are 180 ° and arrange two safety pins (8), each safety pin (8) is furnished with cover (7) and axle end baffle plate, described each cover (7) is that cup-like structure arranged in pairs forms dress, two-part of described paired glass holder (7) are fixed together by safety pin (8) and axle end baffle plate.
2. a kind of transmission shaft that prevents overload fracture according to claim 1, is characterized in that: described half-coupling one (1) and half-coupling two (2) adopt drum-shaped tooth type.
3. a kind of transmission shaft that prevents overload fracture according to claim 1, it is characterized in that: in the cavity of described connecting body two (6), be provided with two bearings (14), between described two bearings (14), be provided with distance ring three (15), left side, the bearing of described left end (14) outer ring is provided with distance ring two (13), inner ring left side is provided with round nut (20) and the lock washer (12) being connected with connecting body one (5) left end spindle nose axial restraint, described connecting body two (6) passes on left bolt having closed end cap (11), described end cap (11) makes bearing (14) outer ring axially locating by distance ring two (13), the right-hand member of the bearing of described right-hand member (14) is provided with slider (16), and described slider (16) is to bearing (14) outer ring axially locating, and slider (16) outside is provided with O-ring seals (18), and inner side is provided with lip-type packing (17), the flange connections of described connecting body one (5) and connecting body two (6) is provided with sealing gasket (19).
4. a kind of transmission shaft that prevents overload fracture according to claim 3, is characterized in that: described bearing (14) is selfaligning roller bearing; Described O-ring seals (18) is located in the groove in slider (16) outside, and lip-type packing (17) is located at slider (16) inner side and is realized its axially locating by means of the shaft shoulder of connecting body one (5).
5. a kind of transmission shaft that prevents overload fracture according to claim 3, it is characterized in that: on the outer wall of described connecting body two (6) and distance ring three (15), have tapped hole and circular hole, in this position, plug screw (21) is installed, described tapped hole and circular hole and plug screw (21) support the use, and are circumferentially laid with three groups.
6. a kind of transmission shaft that prevents overload fracture according to claim 1, is characterized in that: between described half-coupling two (2) and connecting body one (5), be folded with distance ring one (4).
7. a kind of transmission shaft that prevents overload fracture according to claim 1, is characterized in that: the outside of described cover (7) and safety pin (8) is provided with a safety cover (10).
8. a kind of transmission shaft that prevents overload fracture according to claim 1, is characterized in that: the bolt bearing of described half-coupling one (1) and connecting body two (6) is provided with bolt and nut packing ring (3); The bolt bearing of described half-coupling two (2) and connecting body one (5) is provided with bolt and nut packing ring (3); Described safety pin (8) is provided with bolt washer (9) with the bearing of two paired glass holders (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547827.5U CN203431048U (en) | 2013-09-03 | 2013-09-03 | Overloading-breakage preventing transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547827.5U CN203431048U (en) | 2013-09-03 | 2013-09-03 | Overloading-breakage preventing transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431048U true CN203431048U (en) | 2014-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320547827.5U Withdrawn - After Issue CN203431048U (en) | 2013-09-03 | 2013-09-03 | Overloading-breakage preventing transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431048U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438114A (en) * | 2013-09-03 | 2013-12-11 | 大连华锐重工集团股份有限公司 | Drive shaft capable of preventing overload fracture |
| CN105805178A (en) * | 2014-12-30 | 2016-07-27 | 上海新喆机电技术发展有限公司 | Coupler |
| CN109307018A (en) * | 2018-11-07 | 2019-02-05 | 哈尔滨广瀚动力技术发展有限公司 | A kind of speed reducer overload protecting mechanism |
| CN109578452A (en) * | 2019-01-14 | 2019-04-05 | 哈尔滨广瀚动力传动有限公司 | A kind of adjustable super torsion protection structure of high-speed overload shafting |
-
2013
- 2013-09-03 CN CN201320547827.5U patent/CN203431048U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438114A (en) * | 2013-09-03 | 2013-12-11 | 大连华锐重工集团股份有限公司 | Drive shaft capable of preventing overload fracture |
| CN105805178A (en) * | 2014-12-30 | 2016-07-27 | 上海新喆机电技术发展有限公司 | Coupler |
| CN109307018A (en) * | 2018-11-07 | 2019-02-05 | 哈尔滨广瀚动力技术发展有限公司 | A kind of speed reducer overload protecting mechanism |
| CN109578452A (en) * | 2019-01-14 | 2019-04-05 | 哈尔滨广瀚动力传动有限公司 | A kind of adjustable super torsion protection structure of high-speed overload shafting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140212 Effective date of abandoning: 20150527 |
|
| RGAV | Abandon patent right to avoid regrant |