CN101994803A - Lifting nut pair with wear detector - Google Patents
Lifting nut pair with wear detector Download PDFInfo
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- CN101994803A CN101994803A CN2010105509109A CN201010550910A CN101994803A CN 101994803 A CN101994803 A CN 101994803A CN 2010105509109 A CN2010105509109 A CN 2010105509109A CN 201010550910 A CN201010550910 A CN 201010550910A CN 101994803 A CN101994803 A CN 101994803A
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- nut
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- lifting
- driving
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Abstract
The invention discloses a lifting nut pair with a wear detector. A driving group comprises a driving nut, a driving bracket and a safety upper shifting fork, wherein the driving nut is installed on the driving bracket through a bolt; and the safety upper shifting fork is connected with the driving nut through a bolt. A driven group comprises a safety lower shifting fork, a safety nut and an electric appliance detection switch, wherein the safety lower shifting fork is connected with the safety nut through a bolt; the electric appliance detection switch is installed on the driving bracket; and the safety nut and the driving nut are indirectly connected with each other through the safety upper shifting fork and the safety lower shifting fork. The driving group and the driven group are installed on a lifting screw; and a clearance is left between the safety lower shifting fork and the safety nut. In the invention, the wear between the screw and the nuts is utilized to generate the clearance, and a proximity switch is used as a detecting element for detecting the preset clearance, notifying a control system to give an alarm and reminding an operator of the necessary maintenance and replacement, thereby greatly facilitating the operation, preventing the equipment from sudden failures and raising the safety factor.
Description
Technical field
The present invention relates to a kind of detection device, be specifically related to a kind of lifting nut pair of belt wear detection device.
Background technique
Lifting drive system mainly is made up of trapezoidal screw, lifting nut, drive unit, counterweight etc.The slide lifting drives power and is driven through worm reducer by AC motor, by screw-nut body with transmission of power to slide and upset dish, by the linear rail guiding, realize the elevating movement of slide and upset dish.Screw mandrel adopts trapezoidal screw, and feed screw nut pair and worm reducer all have auto-lock function, and slide can accurately be located the arbitrary position in range.
Lifting nut mainly is made up of nut frame, drive nut and jam nut.When drive nut is long-term use in during wear and tear overrun, jam nut contacts with threads of lead screw, thereby prevents that slide from dropping.Because jam nut and leading screw friction locking must could run well behind the replacing drive nut, thereby the security incident that causes because of the nut wearing and tearing in preventing to use for a long time.
Although being provided with the jam nut device prevents from security incident to occur because of nut has worn and torn.But because jam nut and leading screw friction locking must could run well behind the replacing drive nut.Change nut after each replacing jam nut and the leading screw friction locking and comparatively bother, do not have the lifting nut of special band detection device so far.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, and a kind of easy-to-operat is provided, and avoids the lifting nut pair of the belt wear detection device that equipment breaks down suddenly simultaneously, has solved the technical problem that the nut wearing and tearing can't detect.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of lifting nut pair of belt wear detection device, this pair of nut comprises active set and driven group, active set comprises fork on drive nut, driving arm, the safety, and wherein drive nut is installed on the driving arm by bolt, also is connected with drive nut by bolt and go up fork safely; Driven group comprises safety fork, jam nut and electrical equipment detecting switch down, and wherein fork is connected with jam nut by bolt under the safety, and the electrical equipment detecting switch is installed on the driving arm, and jam nut is connected by the upper and lower fork of safety indirectly with drive nut; Active set and driven group are installed on the elevating screw, and safety leaves the gap between fork and the jam nut down, rotate by elevating screw and make the drive nut lifting, drive nut by driving arm with transmission of power.
Further technological scheme is:
Described gap is 1/4th of a pitch.
Described electrical equipment detecting switch is connected with electrical apparatus control system.
The electrical equipment detecting switch be have normally opened contact near switch.
The electrical equipment detecting switch is installed on the spring, is connected with driving arm by spring again, and the working stroke of spring is less than the gap.
Compared with prior art, the invention has the beneficial effects as follows: the lifting nut pair that a kind of belt wear detection device is provided, this device utilizes the wearing and tearing between leading screw and the nut to produce the gap, adopt simultaneously near switch as Detecting element, detect the gap of presetting, the notice control system is reported to the police, remind the operator to keep in repair and to change, greatly facilitate operation, also avoided equipment to break down suddenly simultaneously, improved safety coefficient.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The present invention is further elaborated below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of lifting nut pair of belt wear detection device, this pair of nut comprises active set and driven group, active set comprises fork 3 on drive nut 1, driving arm 2, the safety, wherein drive nut 1 is installed on the driving arm 2 by bolt, also is connected with drive nut 1 by bolt and go up fork 3 safely; Driven group comprises safety down fork 4, jam nut 5 and electrical equipment detecting switch 6 (have normally opened contact near switch), wherein fork 4 is connected with jam nut 5 by bolt under the safety, electrical equipment detecting switch 6 is installed on the spring 8, be connected with driving arm 2 by spring 8, the working stroke of spring 8 is less than gap 7 again.Electrical equipment detecting switch 6 is connected with electrical apparatus control system, and jam nut 5 is connected by the upper and lower fork 3,4 of safety indirectly with drive nut 1; Active set and driven group are installed on the elevating screw, and safety leaves the gap between fork 4 and the jam nut 5 down, and gap 7 is roughly 1/4th of pitch.Make drive nut 1 lifting by the elevating screw rotation, drive nut 1 passes through driving arm 2 with transmission of power, thereby realizes the equipment load lifting function; Simultaneously, jam nut 5 is elevating movement together also, still, owing to connect by fork between jam nut 5 and the drive nut 1, so 5 of jam nuts are done uncharged elevating movement.In use, drive nut 1 is under loading, and the thread form of screw thread can be worn, and this moment, driven group relative position was constant, and active set will descend for driven relatively group, and the amount of decline is the amount that is worn.When the amount that descends exceeded setting value, the electrical equipment detecting switch was thrown off, and electrical apparatus control system is made warning, and prompting must be changed nut and can normally use.
Claims (5)
1. the lifting nut pair of a belt wear detection device, it is characterized in that: this pair of nut comprises active set and driven group, active set comprises fork (3) on drive nut (1), driving arm (2), the safety, wherein drive nut (1) is installed on the driving arm (2) by bolt, also is connected with drive nut (1) by bolt and go up fork (3) safely; Driven group comprises safety fork (4), jam nut (5) and electrical equipment detecting switch (6) down, wherein fork (4) is connected with jam nut (5) by bolt under the safety, electrical equipment detecting switch (6) is installed on the driving arm (2), and jam nut (5) is connected by the upper and lower fork of safety (3,4) indirectly with drive nut (1); Active set and driven group are installed on the elevating screw, and safety leaves gap (7) between fork (4) and the jam nut (5) down, rotate by elevating screw and make drive nut (1) lifting, and drive nut (1) passes through driving arm (2) with transmission of power.
2. the lifting nut pair of belt wear detection device according to claim 1 is characterized in that: described gap (7) are 1/4th of pitch.
3. the lifting nut pair of belt wear detection device according to claim 1 is characterized in that: described electrical equipment detecting switch (6) is connected with electrical apparatus control system.
4. the lifting nut pair of belt wear detection device according to claim 1 is characterized in that: electrical equipment detecting switch (6) be have normally opened contact near switch.
5. the lifting nut pair of belt wear detection device according to claim 1, it is characterized in that: electrical equipment detecting switch (6) is installed on the spring (8), be connected with driving arm (2) by spring (8), the working stroke of spring (8) is less than gap (7) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105509109A CN101994803A (en) | 2010-11-19 | 2010-11-19 | Lifting nut pair with wear detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105509109A CN101994803A (en) | 2010-11-19 | 2010-11-19 | Lifting nut pair with wear detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101994803A true CN101994803A (en) | 2011-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105509109A Pending CN101994803A (en) | 2010-11-19 | 2010-11-19 | Lifting nut pair with wear detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101994803A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604716A (en) * | 2013-11-27 | 2014-02-26 | 广州铁路职业技术学院 | Screw rod spiral groove accelerated wear tester and test method thereof |
| CN104308201A (en) * | 2014-10-10 | 2015-01-28 | 荣成锻压机床有限公司 | Heavy vertical lathe crossbeam lifting safety protection device |
| CN104909297A (en) * | 2015-05-05 | 2015-09-16 | 安徽省安庆市汉城电子通讯有限公司 | Worm wheel lead screw lifter provided with abrasion detecting device |
| CN105329804A (en) * | 2015-11-24 | 2016-02-17 | 重庆红亿机械有限公司 | Safety alarm system for bracket mechanism of car lifting jacks |
| CN105329805A (en) * | 2015-11-24 | 2016-02-17 | 重庆红亿机械有限公司 | Car lifting machine |
| CN105947927A (en) * | 2016-06-28 | 2016-09-21 | 昆山洺九机电有限公司 | Lifting mechanism based on double-layer motor |
| CN107673154A (en) * | 2017-11-17 | 2018-02-09 | 安道利佳智能科技（北京）股份公司 | Elevator power safety arrangement for disabled |
| CN111776917A (en) * | 2020-07-15 | 2020-10-16 | 江西奥陟机电科技有限公司 | Lead screw elevator safety driving device and lead screw elevator thereof |
-
2010
- 2010-11-19 CN CN2010105509109A patent/CN101994803A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604716A (en) * | 2013-11-27 | 2014-02-26 | 广州铁路职业技术学院 | Screw rod spiral groove accelerated wear tester and test method thereof |
| CN104308201A (en) * | 2014-10-10 | 2015-01-28 | 荣成锻压机床有限公司 | Heavy vertical lathe crossbeam lifting safety protection device |
| CN104909297A (en) * | 2015-05-05 | 2015-09-16 | 安徽省安庆市汉城电子通讯有限公司 | Worm wheel lead screw lifter provided with abrasion detecting device |
| CN105329804A (en) * | 2015-11-24 | 2016-02-17 | 重庆红亿机械有限公司 | Safety alarm system for bracket mechanism of car lifting jacks |
| CN105329805A (en) * | 2015-11-24 | 2016-02-17 | 重庆红亿机械有限公司 | Car lifting machine |
| CN105947927A (en) * | 2016-06-28 | 2016-09-21 | 昆山洺九机电有限公司 | Lifting mechanism based on double-layer motor |
| CN107673154A (en) * | 2017-11-17 | 2018-02-09 | 安道利佳智能科技（北京）股份公司 | Elevator power safety arrangement for disabled |
| CN107673154B (en) * | 2017-11-17 | 2023-09-08 | 安道利佳智能科技（北京）股份公司 | Elevator power failure safety protection device |
| CN111776917A (en) * | 2020-07-15 | 2020-10-16 | 江西奥陟机电科技有限公司 | Lead screw elevator safety driving device and lead screw elevator thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110330 |