CN109973605A - A kind of mechanical pulling force overload protection arrangement - Google Patents
A kind of mechanical pulling force overload protection arrangement Download PDFInfo
- Publication number
- CN109973605A CN109973605A CN201910289485.3A CN201910289485A CN109973605A CN 109973605 A CN109973605 A CN 109973605A CN 201910289485 A CN201910289485 A CN 201910289485A CN 109973605 A CN109973605 A CN 109973605A
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- CN
- China
- Prior art keywords
- overload protection
- protection arrangement
- pulling force
- steering engine
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- F16H2035/103—Arrangements or devices for absorbing overload or preventing damage by overload with drive interruption by structural failure of overload preventing means, e.g. using shear pins
Abstract
The present invention devises a kind of mechanical pulling force overload protection arrangement.Its institute's particular content by: pulling force overload protection arrangement is made of tension sensor 1, overload protection arrangement 2；Overload protection arrangement specifically includes that shell a, short connecting rod b, long connecting rod c, hawser connecting shaft d, central spill spin block e, long axis f, steering engine g, steering engine arm h, preloading spring i, fixing seat j, limit sleeve k；For the prior art, advantage for present invention are as follows: 1) present invention greatly reduces intermediate transmission device, keep structure more compact, simple, volume is smaller using symmetrical link mechanism；2) present invention using steering engine as trigger device, overload protection arrangement in a triggered can under the action of the pulling force of both ends automatic work, it is simple, convenient, may be implemented to automate；3) present invention is using mechanical triggering and transmission device, strong antijamming capability, high reliablity.
Description
Technical field
The invention belongs to technical field of mechanical transmission, it relates to a kind of mechanical pulling force overload protection arrangement.
Background technique
During machine driving, when the load in transmission system has been more than the nominal load of system, it can cause tight
The consequence of weight, less serious case's part distortion, stuck fracture, serious person can cause great safety accident.Therefore, overload protection arrangement exists
Play particularly important role during machine driving.Traditional frictional drive and the connection itself for relying on friction to realize are just
With overload protection function.They realize that the process of overload protective function is equal are as follows: when frictional force reaches the limit values, contact with each other
Two components between occur relative motion i.e. skid.This kind of overload protection arrangement in use for some time, bearing capacity meeting
There is apparent decline, and organization volume is larger, disadvantage is more obvious.There are also a kind of device such as shaft coupling, fixed pin etc., this
The process of class device realization overload protective function are as follows: when the power or torque transmitted in device are more than rated load, key therein
Or pin etc. will appear failure by shear and then disconnect.This kind of device smaller scope of application, as fixed pin etc. is mainly answered
For the inside of mechanism, after destroying, replacement gets up to be more troublesome；As the device of shaft coupling etc is then mainly to apply
In the connection of the output shaft and transmission device of motor.Third class is the overload protection arrangement of electromagnetic type, and this kind of device realizes overload
The process of protective effect are as follows: when original state, dynamic and static contact is kept closed, and the load in system increases, and electric current increases,
When load is more than the rated load of system, electric current increaseds to over rated current, is returned using the thermal expansion deformation of bimetal leaf
Bullet realizes the disconnection of dynamic and static contact, i.e. overload protection.After used a period of time, bearing capacity also will appear change to this kind of device
Change, for different bimetal leafs, the bearing capacity of device has certain difference, and is easy to be influenced by external environment.
Summary of the invention
Based on the above background, the present invention devises a kind of mechanical pulling force overload protection arrangement.
As shown in Figure 1, pulling force overload protection arrangement is made of tension sensor 1, overload protection arrangement 2；
As shown in Figure 2, overload protection arrangement specifically includes that shell a, short connecting rod b, long connecting rod c, hawser connecting shaft d, center
Spill spin block e, long axis f, steering engine g, steering engine arm h, preloading spring i, fixing seat j, limit sleeve k；
These components together constitute a whole set of pulling force overload protection arrangement.
The present invention has the advantages that
1, the present invention greatly reduces intermediate transmission device, keeps structure more tight using symmetrical link mechanism
It gathers, simply, volume is smaller；
2, for the present invention using steering engine as trigger device, overload protection arrangement in a triggered can be in the work of both ends pulling force
It is simple, convenient with lower automatic work, it may be implemented to automate；
3, the present invention is using mechanical triggering and transmission device, strong antijamming capability, high reliablity；
Detailed description of the invention
Fig. 1 is the overall structure and composition schematic diagram of pulling force overload protection arrangement；
1 is tension sensor in figure, and 2 be overload protection arrangement；
Fig. 2 is the internal structure and composition schematic diagram of overload protection arrangement；
A is shell in figure, and b is short connecting rod, and c is long connecting rod, and d is hawser connecting shaft, and e is central spill spin block, and f is long axis, g
For steering engine, h is steering engine arm, and i is preloading spring, and j is fixing seat, and k is limit sleeve；
Fig. 3 is the course of work schematic diagram of overload protection arrangement；
Wherein, figure (a) is the initial state of overload protection arrangement, and figure (b) is when the steering engine in overload protection arrangement receives
Steering engine arm rotates after to instruction, i.e., state when will break connecting rod dead point, and figure (c) is pulling force effect of the central spill spin block in hawser
State when lower rotation, figure (d) are that hawser connecting shaft is separated with central spill spin block, and state when falling on above limit sleeve, scheme
(e) failure by shear is generated for limit sleeve, hawser and hawser connecting shaft moves downwardly together simultaneously to be separated with overload protection arrangement
State；
Specific embodiment
It below will be in conjunction with Figure of description, the course of work of the invention to be explained in detail, so as to this field
Technical staff for the understanding of the present invention, to make more specific define to protection scope of the present invention.Below with reference to
The example of attached drawing description is exemplary, and for explaining only the invention, but is not construed as limiting the claims.
As shown in Figure 1, the present invention is a kind of mechanical pulling force overload protection arrangement.When originally, overload protection arrangement
Shown in state such as Fig. 3 (a).The top of overload protection arrangement is connect by hawser and threaded rod with tension sensor；Bottom end is then
It is to be connected by the target of hawser and lower section.Short connecting rod b and long connecting rod c is stable under the action of preloading spring i to be in one
On straight line, that is, it is in dead point state.When tension sensor 1 (see Fig. 1) detects that the power transmitted in device has been more than setting value, just
Steering engine g (see Fig. 2) of the meeting into overload protection arrangement issues instruction, so that steering engine arm h is rotated, to break short connecting rod b and length
The dead point state that connecting rod c is formed (see Fig. 3 (b)).Then, under the action of the hawser upper pulling force of both ends, in overload protection arrangement
Central spill spin block e (see Fig. 2) starts to rotate, and hawser connecting shaft d gradually glides along the track on shell a (see Fig. 3 (c)).It
Afterwards, hawser connecting shaft d (see Fig. 2) is separated with center spill spin block e, and the top of limit sleeve k is snapped down to along the inclined-plane on shell a
(see Fig. 3 (d)).Finally, limit sleeve k (see Fig. 2) generates failure by shear, and in the power of lower section hawser and hawser connecting shaft d
Effect is lower to be separated with overload protection arrangement generation.So far, overload protection arrangement work is completed.
The example of embodiment described above, the only present invention to explain its function, it is intended that help this field
Technical staff understands core of the invention thought, and non-present invention feasibility embodiment is unique.It should be pointed out that for this skill
For the ordinary person in art field, under the premise of not departing from the principle of the invention and spirit, the present invention can also be carried out related
Improvement and modification, these improvement and modification should all be contemplated as falling within claims of the invention.
Claims (5)
1. a kind of mechanical pulling force overload protection arrangement as described in claim 1, it is characterised in that: pulling force overload protection dress
It sets and greatly reduces intermediate transmission device using symmetrical link mechanism, keep structure more compact, simple, volume is more
It is small.
2. a kind of mechanical pulling force overload protection arrangement as described in claim 1, which is characterized in that pulling force overload protection dress
Set using steering engine as trigger device, overload protection arrangement upon being triggered, can under the action of the pulling force of both ends automatic work,
It is simple, convenient, it may be implemented to automate.
3. a kind of mechanical pulling force overload protection arrangement as described in claim 1, which is characterized in that use mechanical touching
Hair and transmission device, increase the anti-interference ability of overload protection arrangement, improve its reliability.
4. a kind of mechanical pulling force overload protection arrangement as described in claim 1, which is characterized in that the pulling force overload
Protective device is made of tension sensor 1, overload protection arrangement 2.
5. a kind of mechanical pulling force overload protection arrangement as described in claim 1, which is characterized in that the overload protection
Device is by shell a, short connecting rod b, long connecting rod c, hawser connecting shaft d, central spill spin block e, long axis f, steering engine g, steering engine arm h, preload
Spring i, fixing seat j, limit sleeve k composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289485.3A CN109973605B (en) | 2019-04-11 | 2019-04-11 | Mechanical tension overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289485.3A CN109973605B (en) | 2019-04-11 | 2019-04-11 | Mechanical tension overload protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109973605A true CN109973605A (en) | 2019-07-05 |
| CN109973605B CN109973605B (en) | 2020-10-30 |
Family
ID=67084161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910289485.3A Expired - Fee Related CN109973605B (en) | 2019-04-11 | 2019-04-11 | Mechanical tension overload protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973605B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111583578A (en) * | 2020-05-23 | 2020-08-25 | 宁波锦锐能源科技有限公司 | Set up photovoltaic power generation early warning device on high-order inclined plane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202346535U (en) * | 2011-11-23 | 2012-07-25 | 上海东锐风电技术有限公司 | Fan elevator with mechanical overload protection |
| CN202869720U (en) * | 2012-10-17 | 2013-04-10 | 广州赛宝计量检测中心服务有限公司 | Mechanical overload protection device of S-shaped pull-press type force cell sensor |
| CN205446451U (en) * | 2015-12-29 | 2016-08-10 | 武汉正通传动技术有限公司 | Push -pull effort excess loading protector |
| CN107986164A (en) * | 2017-09-27 | 2018-05-04 | 河南省大方重型机器有限公司 | A kind of steel wire rope overload protection arrangement |
| CN207370028U (en) * | 2017-07-28 | 2018-05-18 | 桐乡市绿康净菜配送有限公司 | A kind of beam machine overload protecting mechanism |
-
2019
- 2019-04-11 CN CN201910289485.3A patent/CN109973605B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202346535U (en) * | 2011-11-23 | 2012-07-25 | 上海东锐风电技术有限公司 | Fan elevator with mechanical overload protection |
| CN202869720U (en) * | 2012-10-17 | 2013-04-10 | 广州赛宝计量检测中心服务有限公司 | Mechanical overload protection device of S-shaped pull-press type force cell sensor |
| CN205446451U (en) * | 2015-12-29 | 2016-08-10 | 武汉正通传动技术有限公司 | Push -pull effort excess loading protector |
| CN207370028U (en) * | 2017-07-28 | 2018-05-18 | 桐乡市绿康净菜配送有限公司 | A kind of beam machine overload protecting mechanism |
| CN107986164A (en) * | 2017-09-27 | 2018-05-04 | 河南省大方重型机器有限公司 | A kind of steel wire rope overload protection arrangement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111583578A (en) * | 2020-05-23 | 2020-08-25 | 宁波锦锐能源科技有限公司 | Set up photovoltaic power generation early warning device on high-order inclined plane |
| CN111583578B (en) * | 2020-05-23 | 2022-06-03 | 南京盛之华能源科技有限公司 | Set up photovoltaic power generation early warning device on high-order inclined plane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109973605B (en) | 2020-10-30 |
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Granted publication date: 20201030 |
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