CN202659840U - Mechanical swing overload preventing device - Google Patents
Mechanical swing overload preventing device Download PDFInfo
- Publication number
- CN202659840U CN202659840U CN 201220190750 CN201220190750U CN202659840U CN 202659840 U CN202659840 U CN 202659840U CN 201220190750 CN201220190750 CN 201220190750 CN 201220190750 U CN201220190750 U CN 201220190750U CN 202659840 U CN202659840 U CN 202659840U
- Authority
- CN
- China
- Prior art keywords
- swing
- rod
- driving shaft
- pendulum
- drive link
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a mechanical swing overload preventing device which comprises a driving shaft, a transmission rod, a swing rod, a driven rod, a swing claw and a swing claw spring, wherein the driving shaft is in connection with the transmission rod through a key, the driving shaft is in rotating connection with the swing rod, the transmission rod is provided with the swing claw with meshed gears, the swing rod is provided with a groove port matched with the meshed gears at a corresponding position of the swing rod and the meshed gears of the swing claw, the swing rod is in meshed connection with the transmission rod through the meshed gears and the groove port matched with the meshed gears, one end of the swing claw spring is in connection with the driven rod, and the other end of the swing claw spring is in connection with the swing claw. According to the mechanical swing overload preventing device, the meshed gears are embedded with the groove port on the swing rod through the swing claw spring, the swing rod and the swing claw break the meshed relation when the driven rod can not do a reciprocating motion, and therefore power transmission to the driven rod is stopped, and damage of a mechanism caused by overload is avoided.
Description
Technical field
The utility model relates to a kind of overload protective device, particularly relates to the high machinery of a kind of performance reliability and swings overload protective device.
Background technique
Must fully pay attention to the safe operation of mechanism in the Machine Design, the phenomenon that prevents human injury or damage mechanical component occurs, for example the lifting part at hoist must prevent from reversing under load, cause the lifting thing to fall to injuring by a crashing object suddenly the result of workman or damage goods, so mechanism or effective break with enough self-lock abilities should be set in swivel-chain, for preventing that machinery from damaging because swinging overload, machinery then need to be installed in machinery swing overload protective device, yet existing swing overload device is difficult to be installed on and swings in the machinery, this is because traditional swing overload device volume is larger, weight is heavier, cause driving force to increase, it is large to take up room.
Summary of the invention
The purpose of this utility model be provide in order to address the above problem a kind of take up room little, performance reliability is high, cost is low, the mechanical swing overload protective device of easy-to-install.
The utility model is achieved through the following technical solutions:
A kind of machinery swings overload protective device, comprise driving shaft, drive link, fork, follower lever, pendulum pawl and pendulum latch spring, described driving shaft is connected by key with described drive link, described driving shaft and described fork are rotationally connected, pendulum pawl with engaging tooth is installed on the described drive link, place corresponding with described pendulum pawl engaging tooth on the described fork is provided with the notch that matches with described engaging tooth, described fork and described drive link are connected with a joggle by engaging tooth and the notch that matches with it, one end of described pendulum latch spring is connected with described follower lever, and the other end of described pendulum latch spring is connected with described pendulum pawl.
Fork is fastened on the driving shaft with key, drive link can move freely on driving shaft, and be equipped with one with the pendulum pawl of engaging tooth at drive link, the pendulum latch spring makes the notch on engaging tooth and the fork chimeric, when follower lever can not move reciprocatingly, just break away from meshing relation between fork and the pendulum pawl, then just stopped the transmission of power to follower lever, thus can avoid mechanism to damage because of overload.
That described driving shaft is provided with the back-up ring that drive link is carried out axially locating as further improvement of the utility model.
The beneficial effects of the utility model are:
By fork is fastened on the driving shaft with key, drive link can move freely on driving shaft, and be equipped with one with the pendulum pawl of engaging tooth at drive link, the pendulum latch spring makes the notch on engaging tooth and the fork chimeric, when follower lever can not move reciprocatingly, just break away from meshing relation between fork and the pendulum pawl, then just stopped the transmission of power to follower lever, thus can avoid mechanism to damage because of overload.
Description of drawings
Fig. 1 is the structural representation that the utility model machinery swings overload protective device.
Among the figure: the 1-drive link, 2-puts pawl, 3-pendulum pawl eccentric shaft, the 4-engaging tooth, the 5-fork, 6-puts latch spring, 7-follower lever, 8-driving shaft, 9-back-up ring.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments:
As shown in Figure 1, the utility model machinery swings overload protective device, comprise driving shaft 8, drive link 1, fork 5, follower lever 7, pendulum pawl 2 and pendulum latch spring 6, pendulum pawl 2 is provided with pendulum pawl eccentric shaft 3, driving shaft 8 and drive link 1 are connected by key, driving shaft 8 is rotationally connected with fork 5, pendulum pawl with engaging tooth 4 is installed on the drive link 1, place corresponding with pendulum pawl engaging tooth 4 on the fork 5 is provided with the notch (not shown) that matches with described engaging tooth 4, fork 5 and drive link 1 are connected with a joggle by engaging tooth 4 and the notch (not shown) that matches with it, one end of pendulum latch spring 6 is connected with follower lever 7, and the other end of pendulum latch spring 6 is connected with pendulum pawl 2.Driving shaft 8 is provided with the back-up ring 9 that drive link 1 is carried out axially locating.
Fork 5 usefulness keys are fastened on the driving shaft 8, drive link 1 can move freely on driving shaft 8, and be equipped with one with the pendulum pawl 2 of engaging tooth 4 at drive link 1, pendulum latch spring 6 makes engaging tooth 4 chimeric with the notch (not shown) on the fork 5, when follower lever 7 can not move reciprocatingly, just break away from meshing relation between fork 5 and the pendulum pawl 2, so just stopped to the transmission of power of follower lever 7, damage because of overload thereby can avoid swinging machinery.
Claims (2)
1. a machinery swings overload protective device, it is characterized in that: comprise driving shaft, drive link, fork, follower lever, pendulum pawl and pendulum latch spring, described driving shaft is connected by key with described drive link, described driving shaft and described fork are rotationally connected, pendulum pawl with engaging tooth is installed on the described drive link, place corresponding with described pendulum pawl engaging tooth on the described fork is provided with the notch that matches with described engaging tooth, described fork and described drive link are connected with a joggle by engaging tooth and the notch that matches with it, one end of described pendulum latch spring is connected with described follower lever, and the other end of described pendulum latch spring is connected with described pendulum pawl.
2. machinery according to claim 1 swings overload protective device, and it is characterized in that: described driving shaft is provided with the back-up ring that drive link is carried out axially locating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220190750 CN202659840U (en) | 2012-05-02 | 2012-05-02 | Mechanical swing overload preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220190750 CN202659840U (en) | 2012-05-02 | 2012-05-02 | Mechanical swing overload preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659840U true CN202659840U (en) | 2013-01-09 |
Family
ID=47454749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220190750 Expired - Fee Related CN202659840U (en) | 2012-05-02 | 2012-05-02 | Mechanical swing overload preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111051689A (en) * | 2018-02-07 | 2020-04-21 | 国立大学法人东京大学 | Wave receiving mechanism |
-
2012
- 2012-05-02 CN CN 201220190750 patent/CN202659840U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111051689A (en) * | 2018-02-07 | 2020-04-21 | 国立大学法人东京大学 | Wave receiving mechanism |
| CN111051689B (en) * | 2018-02-07 | 2021-03-30 | 国立大学法人东京大学 | Wave receiving mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20130502 |