CN105485283A - Anti-overloading transmission device of power output shaft - Google Patents
Anti-overloading transmission device of power output shaft Download PDFInfo
- Publication number
- CN105485283A CN105485283A CN201610100587.2A CN201610100587A CN105485283A CN 105485283 A CN105485283 A CN 105485283A CN 201610100587 A CN201610100587 A CN 201610100587A CN 105485283 A CN105485283 A CN 105485283A
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- China
- Prior art keywords
- block
- transmission shaft
- slide block
- transmission
- sensing slide
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H35/00—Gearings or mechanisms with other special functional features
- F16H35/10—Arrangements or devices for absorbing overload or preventing damage by overload
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to an anti-overloading transmission device of a power output shaft. The anti-overloading transmission device comprises a transmission shaft, a transmission block, a sensing sliding block, an internal thread block and a leaf spring. An external thread is arranged on the transmission shaft. A transmission hole with the diameter larger than that of the transmission shaft is arranged on the sensing sliding block. The sensing sliding block is arranged on the transmission block in a slidable mode. An internal thread matched with the external thread on the transmission shaft is arranged on the internal thread block. The internal thread block is arranged on the wall of the transmission hole. The leaf spring is arranged on the transmission block. The elastic free end of the leaf spring presses the sensing sliding block to move towards one side of the transmission shaft. Engagement transmission is performed on the internal thread block and the transmission shaft through the internal thread and the external thread, and the transmission block is driven to move. When transmission of the transmission block is larger than torque transmitted by engagement of the internal thread and the external thread, the transmission shaft idles. The anti-overloading transmission device has the advantages that overload damage of a power source caused when the transmission shaft is clamped due to engagement and cannot rotate is avoided, and damage to the transmission shaft is avoided.
Description
Technical field
The present invention relates to the overload protection field to pto＝power take-off, particularly relate to a kind of antioverloading transmission device of pto＝power take-off.
Background technique
At present, the rotating band dynamic load of the pto＝power take-off that a lot of machinery is passed through is moved, and when making load movement be obstructed due to some faults, pto＝power take-off just can not drive load movement, occurs overload phenomenon.And now as pto＝power take-off continues driven loads, the damage of the power source driving pto＝power take-off motion, the overload burning of such as drive motor will be caused, also can cause damage to transmission shaft simultaneously, thus cause greater loss.
Summary of the invention
The object of the present invention is to provide a kind of transmission shaft that can prevent transshipping stop motion when occurring, to the antioverloading transmission device of a kind of pto＝power take-off of load transmission.
For achieving the above object, the antioverloading transmission device of pto＝power take-off of the present invention, comprise transmission shaft, drive block, sensing slide block, internal thread block and reed, described transmission shaft is provided with outside thread, described sensing slide block is provided with the driving hole that a diameter is greater than transmission shaft, this sensing slide block is slidably arranged on drive block, described internal thread block is provided with the internal thread suitable with outside thread on transmission shaft, this internal thread block is arranged on the hole wall of driving hole, , described reed is arranged on drive block, the elastic free side pressure sensing slide block of this reed moves to transmission shaft side, in internal thread block and transmission shaft pass through, outside thread carries out engagement driving, drive drive block moves, within the transmission of drive block is greater than, when outside thread engages the moment of torsion transmitted, transmission shaft dallies.
Further, drive block front end is provided with chute, sensing skid is arranged in this chute.
In order to optimize the stability of apparatus of the present invention, drive block is provided with a through hole, this through hole is arranged on the groove bottom of chute and through along rear direction, and connects with the driving hole on sensing slide block, and transmission shaft is rotatably through driving hole and through hole.
A preferred chute plan of establishment is dovetail groove, and the corresponding bi-side of described sensing slide block are the inclined-plane suitable with dovetail groove, and sensing slide block is slidably arranged in dovetail groove by this inclined-plane.
This external chute also can be set to T-slot, and the corresponding both sides of described sensing slide block are the boss suitable with this T-slot, and sensing slide block is slidably arranged in T-slot by boss.
For making reed have good elasticity, described reed is bent into the projection of an elastically deformable, and drive block is fixed in one end, and one end forms elastic free end, and this elastic free side pressure is touched on sensing slide block.Reed produces larger elastic force by the resiliently deformable of described projection and makes to be connected to internal thread block on sensing slide block and transmission shaft carries out closely thread engagement transmission.
In order to ensure the compacting to sensing slide block of reed, sensing slide block is also provided with a square opening, the elastic free end of reed is placed in this square opening, and is pressed on the side hole wall of square opening, and the internal thread block being connected to sensing slide block is closely engaged by internal and external threads with transmission shaft.
Driving hole on preferred sensing slide block is circular hole, also can be waist shaped hole or square hole.
The antioverloading transmission device of pto＝power take-off of the present invention, drive block is driven to move by sensing slide block with engaging of screw thread, and by reed compacting sensing slide block, when engagement is stuck, drive sensing slide block to move by reed, ensure that transmission shaft continues to rotate, prevent transmission shaft stuck owing to engaging, cannot rotate and cause the overload of power source to damage, and damage is caused to transmission shaft.
Accompanying drawing explanation
Fig. 1 is the scheme of installation of the antioverloading transmission device of pto＝power take-off.
Fig. 2 is the structural representation of the antioverloading transmission device of pto＝power take-off.
Fig. 3 is the thread engagement schematic diagram on transmission shaft and sensing slide block.
Fig. 4 is drive block structural representation.
In figure: 1 is drive block, 11 is through holes, and 12 is dovetail groove bottom surfaces, and 2 is reeds, and 21 is the projections of elastically deformable on reed, and 3 is transmission shafts, and 31 is outside threads, and 4 is sensing slide blocks, and 41 is square holes, and 42 is sensing slide block circular holes, and 5 is internal thread blocks, and 51 is internal threads.
Embodiment
As shown in Figure 1, Figure 2, Figure 4 shows, the invention provides a kind of transmission device preventing transmission shaft from can stop transmission when transshipping and occurring.This device is primarily of drive block 1, transmission shaft 3, sensing slide block 4 and reed 2 form, and transmission shaft 3 is provided with outside thread 31, and the front-end face of drive block 1 is provided with chute, dovetail groove is arranged to by chute in the present embodiment, meanwhile, this chute also can be arranged to T-slot, when being arranged to T-slot, the corresponding both sides of sensing slide block are the boss suitable with T-slot, and sensing slide block is slidably arranged in T-slot by boss.The corresponding bi-side of sensing slide block 4 are the inclined-plane suitable with dovetail groove, sensing slide block 4 is slidably arranged in dovetail groove by this inclined-plane, sensing slide block 4 is provided with the driving hole that a diameter is greater than transmission shaft 3, this driving hole can be arranged to different shapes, such as circular hole, waist shaped hole and square hole, need ensure that transmission shaft can pass through this driving hole.Driving hole in the present embodiment is arranged to circular hole 42, internal thread block 5 is being provided with along on the circular hole 42 side hole wall of sensing slide block 4 moving direction, internal thread block 5 is provided with the internal thread 51 suitable with outside thread on transmission shaft 31, outside thread 31 on transmission shaft 3 engages each other with the internal thread 51 on the internal thread block 5 on sensing slide block, drive block 1 is provided with a through hole 11, this through hole 11 is arranged on the groove bottom 12 of dovetail groove, and the through drive block 1 in trailing flank direction, and connect with the circular hole 42 on sensing slide block 4, transmission shaft 3 is rotatably through circular hole 42 and through hole 11, as Fig. 3.
Reed 2 is fixed on a side of drive block 1, reed 2 is bent into the projection 21 of an elastically deformable, one end is fixed on drive block 1, the other end forms elastic free end, this elastic free end is placed in a square hole 41 being arranged on sensing slide block 4, and be pressed on the side hole wall of square hole 42, make to be connected on sensing slide block 4 internal thread block 5 closely engaged by internal and external threads with transmission shaft 3.
Pto＝power take-off is connected with transmission shaft 3, the rotation of pto＝power take-off drives transmission shaft 3 to rotate, because the internal thread block 5 on sensing slide block 4 keeps engaging with the outside thread 31 on transmission shaft 4, the rotation of transmission shaft 3 can drive sensing slide block 4 and the drive block 1 that is connected with sensing slide block 4 moves, and controls moving forward and backward of drive block 1 and sensing slide block 4 by rotating and reverse of transmission shaft 3.
In drive block 1 movement process, when the retard motion of drive block 1, internal thread 51 due to the internal thread block 5 on sensing slide block 4 is engaged by the outside thread 31 in reed 2 compacting also transmission shaft, when sensing slide block 4 stop motion, now transmission shaft 3 still continues to keep power provide and rotate, the elastic force of the convex portion 21 of elastically deformable on the reed 2 that the rotation of transmission shaft 3 overcomes compacting sensing slide block 4, the elastic free end band of reed 2 is moved sensing slide block 4 and is outwards ejected, internal thread block 5 departs from the outside thread groove on transmission shaft 3 and engages, transmission shaft 3 is rotated further, when transmission shaft 3 turns an angle, sensing slide block 4 is subject to the elastic force of projection 21 part of the elastically deformable on reed 2, elastic free end again rebounds and suppresses sensing slide block 4, internal thread block 5 falls in the outside thread groove on transmission shaft 3 again, again engage.Repeat said process, the telescopic process of sensing slide block 4 is driven by reed 2, ensure that transmission shaft 3 and sensing slide block 4 remain the engagement of intermittent repetition and depart from engagement action, ensure that transmission shaft 3 continues to rotate, prevent due to drive block 1 and sensing slide block 4 stop mobile causing the outside thread 31 on transmission shaft 1 with engage between internal thread block 5 stuck, transmission shaft 3 stops operating, and pto＝power take-off is transshipped, causes damage to pto＝power take-off.
Claims (8)
1. the antioverloading transmission device of a pto＝power take-off, it is characterized in that: comprise transmission shaft, drive block, sensing slide block, internal thread block and reed, described transmission shaft is provided with outside thread, described sensing slide block is provided with the driving hole that a diameter is greater than transmission shaft, this sensing slide block is slidably arranged on drive block, described internal thread block is provided with the internal thread suitable with outside thread on transmission shaft, this internal thread block is arranged on the hole wall of driving hole, , described reed is arranged on drive block, the elastic free side pressure sensing slide block of this reed moves to transmission shaft side, in internal thread block and transmission shaft pass through, outside thread carries out engagement driving, drive drive block moves, within the transmission of drive block is greater than, when outside thread engages the moment of torsion transmitted, transmission shaft dallies.
2. the antioverloading transmission device of pto＝power take-off according to claim 1, is characterized in that: described drive block front end is provided with chute, and sensing skid is arranged in this chute.
3. the antioverloading transmission device of pto＝power take-off according to claim 2, it is characterized in that: described drive block is provided with a through hole, this through hole is arranged on the groove bottom of chute and through along rear direction, and connect with the driving hole on sensing slide block, transmission shaft is rotatably through driving hole and through hole.
4. the antioverloading transmission device of pto＝power take-off according to claim 2, it is characterized in that: described chute is dovetail groove, the corresponding bi-side of described sensing slide block are the inclined-plane suitable with dovetail groove, and sensing slide block is slidably arranged in dovetail groove by this inclined-plane.
5. the antioverloading transmission device of pto＝power take-off according to claim 1, is characterized in that: described chute is T-slot, and the corresponding both sides of described sensing slide block are the boss suitable with T-slot, and sensing slide block is slidably arranged in T-slot by boss.
6. the antioverloading transmission device of pto＝power take-off according to claim 1, it is characterized in that: described reed is bent into the projection of an elastically deformable, drive block is fixed in one end, and one end forms elastic free end, and this elastic free side pressure is touched on sensing slide block.
7. the antioverloading transmission device of pto＝power take-off according to claim 1, it is characterized in that: described sensing slide block is also provided with a square opening, the elastic free end of reed is placed in this square opening, and be pressed on the side hole wall of square opening, the internal thread block being connected to sensing slide block is closely engaged by internal and external threads with transmission shaft.
8. the antioverloading transmission device of pto＝power take-off according to claim 1, is characterized in that: the driving hole on described sensing slide block is circular hole, also can be waist shaped hole or square hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610100587.2A CN105485283B (en) | 2016-02-24 | 2016-02-24 | A kind of antioverloading transmission device of power output shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610100587.2A CN105485283B (en) | 2016-02-24 | 2016-02-24 | A kind of antioverloading transmission device of power output shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105485283A true CN105485283A (en) | 2016-04-13 |
| CN105485283B CN105485283B (en) | 2018-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610100587.2A Active CN105485283B (en) | 2016-02-24 | 2016-02-24 | A kind of antioverloading transmission device of power output shaft |
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| CN (1) | CN105485283B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118149151A (en) * | 2024-05-09 | 2024-06-07 | 华能济南黄台发电有限公司 | Small-flow overload-prevention multi-valve cage regulating valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3368433A (en) * | 1965-11-24 | 1968-02-13 | Model Shop Associates Inc | Quick releasable nut |
| CN1094348A (en) * | 1993-04-23 | 1994-11-02 | 范朝来 | A kind of quick and slow speed screw driving system |
| CN1117018A (en) * | 1994-08-18 | 1996-02-21 | 范朝来 | Rapid rising-falling jack |
| US5713242A (en) * | 1995-07-20 | 1998-02-03 | Atrion Medical Products, Inc. | Actuating mechanism for fluid displacement and pressurizing device |
| WO2015051615A1 (en) * | 2013-10-10 | 2015-04-16 | 何少敦 | Sliding block type electric push rod |
| CN205383236U (en) * | 2016-02-24 | 2016-07-13 | 南京康尼新能源汽车零部件有限公司 | Transmission of power output shaft's antioverloading |
-
2016
- 2016-02-24 CN CN201610100587.2A patent/CN105485283B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3368433A (en) * | 1965-11-24 | 1968-02-13 | Model Shop Associates Inc | Quick releasable nut |
| CN1094348A (en) * | 1993-04-23 | 1994-11-02 | 范朝来 | A kind of quick and slow speed screw driving system |
| CN1117018A (en) * | 1994-08-18 | 1996-02-21 | 范朝来 | Rapid rising-falling jack |
| US5713242A (en) * | 1995-07-20 | 1998-02-03 | Atrion Medical Products, Inc. | Actuating mechanism for fluid displacement and pressurizing device |
| WO2015051615A1 (en) * | 2013-10-10 | 2015-04-16 | 何少敦 | Sliding block type electric push rod |
| CN205383236U (en) * | 2016-02-24 | 2016-07-13 | 南京康尼新能源汽车零部件有限公司 | Transmission of power output shaft's antioverloading |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118149151A (en) * | 2024-05-09 | 2024-06-07 | 华能济南黄台发电有限公司 | Small-flow overload-prevention multi-valve cage regulating valve |
| CN118149151B (en) * | 2024-05-09 | 2024-09-24 | 华能济南黄台发电有限公司 | Small-flow overload-prevention multi-valve cage regulating valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105485283B (en) | 2018-02-23 |
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