CN2491653Y - Rotary shift mechanism having axial limit and overforce protection - Google Patents
Rotary shift mechanism having axial limit and overforce protection Download PDFInfo
- Publication number
- CN2491653Y CN2491653Y CN 01246781 CN01246781U CN2491653Y CN 2491653 Y CN2491653 Y CN 2491653Y CN 01246781 CN01246781 CN 01246781 CN 01246781 U CN01246781 U CN 01246781U CN 2491653 Y CN2491653 Y CN 2491653Y
- Authority
- CN
- China
- Prior art keywords
- screw rod
- rotation positioning
- screw bolt
- positioning pin
- utility
- 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 - Lifetime
Links
Images
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model relates to a rotating and shifting mechanism for axially spacing and preventing overpower. The mechanism comprises a screw bolt, two ends of the screw bolt is provided with a fixed seat and a bearing, a nut slider is coupled on the screw bolt, one end of the screw bolt is provided with an axial locating mechanism, the other end is provided with a handle or a clutch, polish-rod portions arranged at two ends of a screw-thread section of the screw bolt are respectively sleeved a spacing spring for overpower prevention. The utility model adopts rotational energy of the screw bolt to drive a sliding block to axially move with loads, and thereby the nut slider can realize axial moving and spacing with loads and overpower prevention. The utility model has the advantages of simple structure, low cost, reliable axial locating and maintenance avoiding, and further the utility model can be widely applied to the machinery field.
Description
(1) technical field:
The utility model relates to a kind of rotational displacement mechanism, the rotational displacement mechanism of particularly a kind of axial limiting and exertin protection.
(2) background technique:
Present general rotating machinery only can be realized radially transmission mostly, and does not possess displacement of axial zone load and axial exertin protection limit function; The load forces that discharges the system scope that transfinites of losing that event of overload is leaned on bearing pins or parts often if take place in mechanism.
(3) summary of the invention:
The purpose of this utility model is to overcome the problem that prior art exists, and the rotational displacement mechanism that provides a kind of axial limiting and exertin to protect can realize that on-load is axially displaced by rotating, and has axial limiting and reliable exertin protective function simultaneously.
For achieving the above object, the utility model adopts following technical proposals:
The rotational displacement mechanism of a kind of axial limiting and exertin protection; the fixed base and the bearing that comprise screw rod, screw rod two ends; it is characterized in that nut slider of coupling on the screw rod; one end of screw rod has axially locating mechanism; and the other end has handle or coupling, anti-exertin limit spring of each suit of polished rod position, screw flight section two ends.
The structure of axially locating mechanism can be designed as: the fixing rotation positioning pin of planting in the end of screw rod, the rotation positioning pin is in the circular trough of the gasket ring of fixedlying connected with fixed base, covers circular trough and spacing to the rotation positioning pin by gland.
The structure of axially locating mechanism also can be designed as: the fixing rotation positioning pin of planting in the end of screw rod, on the screw rod at rotation positioning pin place, put a rotation positioning ring, each is supported by an one direction thrust bearing respectively in the both sides of rotation positioning ring, two one direction thrust bearings are placed in the circular trough of fixed base, and are covered and one direction thrust bearing is located by gland.
The utility model has following conspicuous characteristics and advantage compared with prior art: by screw rod coupling nut slider, can move axially by drive nut slide block on-load by the rotation of screw rod in the utility model; One end of screw rod has axially locating mechanism, and screw rod can axially be located under axial load; Each suit of polished rod position, screw flight section two ends is prevented the exertin limit spring, can make the nut slider on-load move axially spacing and the exertin protection.The utility model is simple in structure, and cost is low, and axially locating is reliable, and is non-maintaining, but in the mechanical field extensive use.
(4) description of drawings:
Fig. 1 is an embodiment's of the utility model a structural representation.
Fig. 2 is another embodiment's of the utility model a structural representation.
(5) embodiment:
Embodiment one: referring to Fig. 1; the rotational displacement mechanism of this axial limiting and exertin protection includes the fixed base 12,10 and the bearing 4,9 at screw rod 7, screw rod 7 two ends; nut slider 6 of screw rod 7 couplings; one end of screw rod has axial means; and the other end has handle 8, and an anti-exertin limit spring 5,11 is respectively overlapped at polished rod position, screw rod 7 thread section two ends.The structure of axially locating mechanism is: the fixing rotation positioning pin 3 of planting in the end of screw rod 7, rotation positioning pin 3 is in the circular trough of the gasket ring 2 of fixedlying connected with fixed base 12, cover circular trough and spacing to rotation positioning pin 3 by gland 1, gland 1 is fixedlyed connected with fixed base 12 by screw 13.This example belongs to manual drives.
Embodiment two: referring to Fig. 2; this axial limiting is identical with last example basically with the rotational displacement mechanism of exertin protection; institute's difference is: the structure of axially locating mechanism is: the fixing rotation positioning pin 3 of planting in the end of screw rod 7; on the screw rod 7 at rotation positioning pin 3 places, put a rotation positioning ring 15; each is supported by an one direction thrust bearing 14,16 respectively in the both sides of rotation positioning ring 15; two one direction thrust bearings 14,16 are placed in the circular trough of fixed base 12, and are covered and one direction thrust bearing 14,16 is located by gland 1.One end of screw rod 7 connects coupling 17 by key 18, then can be driven by driving mechanism by motor.
Claims (3)
1. the rotational displacement mechanism of axial limiting and exertin protection; the fixed base (12,10) and the bearing (4,9) that comprise screw rod (7), screw rod (7) two ends; it is characterized in that a upward coupling nut slider (6) of screw rod (7); one end of screw rod (7) has axially locating mechanism; and the other end has handle (8) or coupling (17), an anti-exertin limit spring of each suit of polished rod position, thread section two ends (5,11) of screw rod (7).
2. the rotational displacement mechanism of axial limiting according to claim 1 and exertin protection; the structure that it is characterized in that axially locating mechanism is: the fixing rotation positioning pin (3) of planting in the end of screw rod (7); rotation positioning pin (3) is in the circular trough of the gasket ring (2) of fixedlying connected with fixed base (12), covers circular trough and spacing to rotation positioning pin (3) by gland (1).
3. the rotational displacement mechanism of axial limiting according to claim 1 and exertin protection; the structure that it is characterized in that axially locating mechanism is: the fixing rotation positioning pin (3) of planting in the end of screw rod (7); on the screw rod (7) that rotation positioning pin (3) is located, put a rotation positioning ring (15); each is supported by an one direction thrust bearing (14,16) respectively in the both sides of rotation positioning ring (15); two one direction thrust bearings (14,16) are placed in the circular trough of fixed base (12), and are covered and one direction thrust bearing (14,16) is located by gland (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246781 CN2491653Y (en) | 2001-07-30 | 2001-07-30 | Rotary shift mechanism having axial limit and overforce protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246781 CN2491653Y (en) | 2001-07-30 | 2001-07-30 | Rotary shift mechanism having axial limit and overforce protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2491653Y true CN2491653Y (en) | 2002-05-15 |
Family
ID=33657738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01246781 Expired - Lifetime CN2491653Y (en) | 2001-07-30 | 2001-07-30 | Rotary shift mechanism having axial limit and overforce protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2491653Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216048A (en) * | 2015-10-16 | 2016-01-06 | 苏州杰威尔精密机械有限公司 | Pipe fitting cutter sweep |
| CN109744957A (en) * | 2017-11-06 | 2019-05-14 | 青岛海尔洗碗机有限公司 | A kind of shutter member switch apparatus for adjusting force and dish-washing machine |
| CN111397795A (en) * | 2020-05-14 | 2020-07-10 | 红旗仪表（长兴）有限公司 | Multi-surface pressure gauge |
-
2001
- 2001-07-30 CN CN 01246781 patent/CN2491653Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216048A (en) * | 2015-10-16 | 2016-01-06 | 苏州杰威尔精密机械有限公司 | Pipe fitting cutter sweep |
| CN109744957A (en) * | 2017-11-06 | 2019-05-14 | 青岛海尔洗碗机有限公司 | A kind of shutter member switch apparatus for adjusting force and dish-washing machine |
| CN111397795A (en) * | 2020-05-14 | 2020-07-10 | 红旗仪表（长兴）有限公司 | Multi-surface pressure gauge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209408492U (en) | Steering engine and robot | |
| CN105207404A (en) | Electric push rod | |
| CN2491653Y (en) | Rotary shift mechanism having axial limit and overforce protection | |
| US7753137B2 (en) | Hand-held power tool | |
| CN100468917C (en) | Automobile alternator integral pulley assembly | |
| CN210764154U (en) | Vehicle-mounted lifting mechanism | |
| CA1260857A (en) | Shaft aligned backstop for a reducer | |
| CN2589740Y (en) | Disc clutch | |
| CN209724903U (en) | A kind of compensation hovering mechanism | |
| CN2158465Y (en) | Shaft coupling | |
| CN208764252U (en) | A kind of speed reducer | |
| CN2283732Y (en) | Improvement cam mating electric rock drill | |
| CN2908919Y (en) | Polish rod driver | |
| CN220102011U (en) | Dual-protection solar tracking speed reducer | |
| CN2223386Y (en) | Centrifugal pulley | |
| CN201860215U (en) | Power transmission device | |
| CN217478962U (en) | Electric jack | |
| CN2900933Y (en) | Ball screw rod push-pull device | |
| CN2529088Y (en) | Constant torque star unloading valve | |
| CN2628796Y (en) | Electric clutch | |
| CN103195909A (en) | Conical-surface synchronous meshing gear | |
| CN216478524U (en) | Coupler capable of reducing separation phenomenon of transmission shaft | |
| CN2524416Y (en) | Asynchronous motor with external rotor for washing machine | |
| CN216588599U (en) | Central driving structure of shield | |
| CN2186822Y (en) | Friction ball differential mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110730 Granted publication date: 20020515 |