CN115448124A - Wedge block lifting mechanism and lifting assembly - Google Patents
Wedge block lifting mechanism and lifting assembly Download PDFInfo
- Publication number
- CN115448124A CN115448124A CN202110642142.8A CN202110642142A CN115448124A CN 115448124 A CN115448124 A CN 115448124A CN 202110642142 A CN202110642142 A CN 202110642142A CN 115448124 A CN115448124 A CN 115448124A
- Authority
- CN
- China
- Prior art keywords
- lifting
- wedge block
- wedge
- rod
- mechanism according
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 description 2
- 240000004282 Grewia occidentalis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/42—Slack adjusters mechanical non-automatic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention belongs to the technical field of safety tongs lifting, and particularly relates to a wedge block lifting mechanism and a lifting assembly. The wedge block lifting mechanism comprises a lifting rod, a first limiting piece, a wedge block lifting seat, a stroke adjusting elastic piece and a second limiting piece, wherein the first limiting piece, the wedge block lifting seat, the stroke adjusting elastic piece and the second limiting piece are sequentially sleeved outside the lifting rod along the lifting direction of the lifting rod; the wedge block lifting seat is used for being connected with the wedge block in a linkage mode. The wedge block lifting mechanism can self-adaptively adjust the movable stroke of the wedge block by utilizing the stroke adjusting elastic piece so as to realize the safe braking of an elevator car by contacting and rubbing with an elevator guide rail.
Description
Technical Field
The invention belongs to the technical field of safety tongs lifting, and particularly relates to a wedge block lifting mechanism and a lifting assembly.
Background
The safety gear lifting mechanism is an important component in the safety system of an elevator. When the elevator breaks down, the safety gear wedge blocks are pulled by the lifting rods connected with the speed limiter steel wire rope, and when the safety gear wedge blocks are tightly attached to the guide rail, friction self-locking upward movement is generated, so that the safety gear clamps the guide rail to brake the car.
In the existing connection mode between the lifting rod and the wedge block, the movable stroke of the wedge block is limited by the mutual influence when the lifting stroke of the lifting rod is adjusted or the double sets of safety tongs are overlapped, and the synchronism of the safety tongs in linkage is easily influenced.
In order to solve the synchronism of the safety tongs wedge block, the structure of the lifting wedge block needs to be improved.
Disclosure of Invention
Based on the above disadvantages and shortcomings of the prior art, it is an object of the present invention to provide a wedge lifting mechanism and a lifting assembly.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
a wedge block lifting mechanism comprises a lifting rod, a first limiting piece, a wedge block lifting seat, a stroke adjusting elastic piece and a second limiting piece, wherein the first limiting piece, the wedge block lifting seat, the stroke adjusting elastic piece and the second limiting piece are sequentially sleeved outside the lifting rod along the lifting direction of the lifting rod; the wedge block lifting seat is used for being in linkage connection with the wedge block.
Preferably, the wedge block lifting seat is provided with a mounting hole, and a fixing piece penetrates through the mounting hole to be fixedly mounted with the wedge block.
Preferably, the mounting hole is a waist-shaped hole.
As a preferred scheme, the number of the mounting holes is two, and the two mounting holes are symmetrically distributed on two sides of the lifting rod.
Preferably, the stroke adjusting elastic member is a compression spring, a belleville spring or a combination of the compression spring and the belleville spring.
As a preferred scheme, the first limiting piece and the second limiting piece are both nuts or nut combinations, and the lifting rod has a first external thread and a second external thread which respectively correspond to the first limiting piece and the second limiting piece.
As a preferred scheme, the lifting rod comprises a plurality of rod bodies which are connected in sequence, and adjacent rod bodies are fixedly connected through lengthened nuts.
Preferably, the end of the lifting rod is provided with a convex block, and the cross section of the convex block is in a hexagonal, quadrangular or triangular structure.
Preferably, the diameter of the circumscribed circle of the projection is smaller than the diameter of the pull rod.
The invention also provides a wedge block lifting assembly which is applied to lifting of a plurality of sets of wedge blocks distributed along the lifting direction of the lifting rod, each set of wedge block is correspondingly provided with the wedge block lifting mechanism in any scheme, and the lifting rods of the adjacent wedge block lifting mechanisms are fixedly connected through lengthened nuts.
Compared with the prior art, the invention has the beneficial effects that:
the wedge block lifting mechanism can self-adaptively adjust the movable stroke of the wedge block by utilizing the stroke adjusting elastic piece so as to realize the safe braking of the elevator car by contacting and rubbing with the elevator guide rail.
The wedge block lifting assembly provided by the invention realizes synchronous lifting of a plurality of sets of wedge blocks distributed along the lifting direction of the lifting rod, ensures the synchronism of the wedge blocks of the safety tongs, and improves the braking safety of an elevator car.
Drawings
Fig. 1 is a schematic structural view of a wedge pulling mechanism according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a wedge lifting assembly according to embodiment 1 of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will explain the embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
Example 1:
the wedge block lifting mechanism of the embodiment is applied to wedge block lifting of safety tongs, and safety braking of an elevator car is achieved.
As shown in fig. 1, the wedge block lifting mechanism of the present embodiment includes a lifting rod 1, and a first limiting member 2, a wedge block lifting seat 3, a stroke adjusting elastic member 4, and a second limiting member 5, which are sequentially sleeved outside the lifting rod 1 along a lifting direction (i.e., a vertical direction) of the lifting rod, wherein an upper end and a lower end of the stroke adjusting elastic member 4 respectively abut against the second limiting member 5 and the wedge block lifting seat 3; the wedge block lifting seat 3 is used for being connected with a wedge block in a linkage manner.
Specifically, the wedge lifter 3 of the embodiment has a mounting hole 30, through which a fixing member (such as a bolt or a screw or a pin) passes to be fixedly mounted with the wedge of the elevator safety gear, so as to realize the linkage connection between the wedge lifter and the wedge. The number of the mounting holes 30 is two, and the mounting holes are symmetrically distributed on two sides of the lifting rod, so that the stability of lifting is guaranteed. In addition, the mounting hole 30 of the present embodiment is a waist-shaped hole, which is convenient for adjusting the mounting position of the adaptive wedge and has good adaptability. The shape of the mounting hole can be round hole or other common hole-shaped structures besides the waist-shaped hole exemplified in the embodiment.
The stroke adjusting elastic part 4 of the embodiment is a compression spring, and can adaptively adjust the movable stroke of a wedge block so that the safety braking of an elevator car is realized by the contact friction between the wedge block and an elevator guide rail, and the processing and the forming are convenient.
In the present embodiment, the first limiting member 2 and the second limiting member 5 are both nut combinations, such as two nut combinations shown in fig. 1, but the number of the nuts is not limited to two, and may be one or three, and the like, and specifically, the adjustment may be performed according to the actual application requirement, and a gasket is disposed between the nuts; correspondingly, the lifting rod 1 is provided with a first external thread and a second external thread which respectively correspond to the first limiting piece 2 and the second limiting piece 5; the setting of two locating parts realizes that voussoir draws seat and stroke adjustment elastic component spacing.
As shown in fig. 2, the wedge block lifting assembly of this embodiment is applied to lifting two sets of wedge blocks (the number is not limited to two sets, and can be specifically adjusted according to actual application requirements) distributed along the lifting direction of a lifting rod, each set of wedge block is correspondingly provided with the wedge block lifting mechanism of this embodiment, and the lifting rods of adjacent wedge block lifting mechanisms are fixedly connected through a lengthened nut 6, so as to realize synchronous lifting of the two sets of wedge blocks. The bottom end of the bottommost lifting rod extends downwards to form a coaxial bump 10, the cross section of the bump is of a hexagonal structure, and the diameter of a circumscribed circle of the bump is smaller than that of the lifting rod, so that the lifting rod is convenient to position and install. In addition, the cross section of the bump can be in a four-corner or triangular structure.
Example 2:
the wedge lifting mechanism of the present embodiment is different from embodiment 1 in that:
the lifting rod comprises a plurality of rod bodies which are connected in sequence, and adjacent rod bodies are fixedly connected through lengthened nuts, so that the lifting rod is convenient to mount;
correspondingly, the wedge block lifting assembly of the embodiment adopts the wedge block lifting mechanism of the embodiment;
other structures can refer to embodiment 1.
Example 3:
the wedge lifting mechanism of the present embodiment is different from embodiment 1 in that:
the stroke adjusting elastic part can also adopt a disc spring or a combination of a compression spring and the disc spring, and can also realize the self-adaptive adjustment of the movable stroke of the wedge block, thereby meeting the requirements of different application occasions.
Correspondingly, the wedge block lifting assembly of the embodiment adopts the wedge block lifting mechanism of the embodiment;
other structures can refer to embodiment 1.
The foregoing has outlined rather broadly the preferred embodiments and principles of the present invention and it will be appreciated that those skilled in the art may devise variations of the present invention that are within the spirit and scope of the appended claims.
Claims (10)
1. A wedge block lifting mechanism is characterized by comprising a lifting rod, a first limiting piece, a wedge block lifting seat, a stroke adjusting elastic piece and a second limiting piece, wherein the first limiting piece, the wedge block lifting seat, the stroke adjusting elastic piece and the second limiting piece are sequentially sleeved outside the lifting rod along the lifting direction of the lifting rod; the wedge block lifting seat is used for being in linkage connection with the wedge block.
2. A wedge lifting mechanism according to claim 1, wherein the wedge lifting shoe has mounting holes through which fasteners extend to fixedly mount the wedge.
3. A wedge lifting mechanism according to claim 2, wherein the mounting hole is a slotted hole.
4. A wedge lifting mechanism according to claim 2 or 3, wherein there are two of said mounting holes and said mounting holes are symmetrically disposed on opposite sides of said lifting rod.
5. A wedge lifting mechanism according to claim 1, wherein said stroke adjustment resilient member is a compression spring, a belleville spring or a combination of a compression spring and a belleville spring.
6. A wedge lifting mechanism according to claim 1, wherein the first and second limiting members are each a nut or a combination of nuts, and the lifting rod has first and second external threads corresponding to the first and second limiting members, respectively.
7. A wedge block lifting mechanism according to claim 1, wherein the lifting rod comprises a plurality of rod bodies connected in sequence, and adjacent rod bodies are fixedly connected through an elongated nut.
8. A wedge lifting mechanism according to claim 1 wherein the end of the lifting rod has a protrusion with a hexagonal, tetragonal or triangular cross-section.
9. A wedge pulling mechanism according to claim 8, wherein the diameter of the circumscribed circle of the projection is smaller than the diameter of the pull rod.
10. A wedge block lifting assembly is applied to lifting of a plurality of sets of wedge blocks distributed along the lifting direction of a lifting rod, and is characterized in that each set of wedge block is correspondingly provided with a wedge block lifting mechanism according to any one of claims 1 to 9, and the lifting rods of adjacent wedge block lifting mechanisms are fixedly connected through lengthened nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110642142.8A CN115448124B (en) | 2021-06-09 | 2021-06-09 | Wedge lifting mechanism and lifting assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110642142.8A CN115448124B (en) | 2021-06-09 | 2021-06-09 | Wedge lifting mechanism and lifting assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115448124A true CN115448124A (en) | 2022-12-09 |
| CN115448124B CN115448124B (en) | 2024-05-07 |
Family
ID=84295299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110642142.8A Active CN115448124B (en) | 2021-06-09 | 2021-06-09 | Wedge lifting mechanism and lifting assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115448124B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058256A1 (en) * | 2014-10-16 | 2016-04-21 | 邹家春 | Weightless safety clamp |
| CN207312863U (en) * | 2017-10-11 | 2018-05-04 | 肇庆富士通电梯有限公司 | A kind of dual-wedge synchronous safety pincers |
| CN207511631U (en) * | 2017-10-31 | 2018-06-19 | 天津乐驰电梯配件有限公司 | A kind of elevator safety gear with shock-absorbing function |
| CN212292413U (en) * | 2020-09-27 | 2021-01-05 | 杭州沪宁电梯部件股份有限公司 | Integrated brake device for elevator |
| CN217577898U (en) * | 2021-06-09 | 2022-10-14 | 杭州沪宁电梯部件股份有限公司 | Wedge block lifting mechanism and lifting assembly |
-
2021
- 2021-06-09 CN CN202110642142.8A patent/CN115448124B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058256A1 (en) * | 2014-10-16 | 2016-04-21 | 邹家春 | Weightless safety clamp |
| CN207312863U (en) * | 2017-10-11 | 2018-05-04 | 肇庆富士通电梯有限公司 | A kind of dual-wedge synchronous safety pincers |
| CN207511631U (en) * | 2017-10-31 | 2018-06-19 | 天津乐驰电梯配件有限公司 | A kind of elevator safety gear with shock-absorbing function |
| CN212292413U (en) * | 2020-09-27 | 2021-01-05 | 杭州沪宁电梯部件股份有限公司 | Integrated brake device for elevator |
| CN217577898U (en) * | 2021-06-09 | 2022-10-14 | 杭州沪宁电梯部件股份有限公司 | Wedge block lifting mechanism and lifting assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115448124B (en) | 2024-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110616811A (en) | Bidirectional guide rail friction pendulum type shock insulation support with anti-pulling function | |
| CN217577898U (en) | Wedge block lifting mechanism and lifting assembly | |
| CN202379552U (en) | Elevator safety protection device | |
| CN115448124A (en) | Wedge block lifting mechanism and lifting assembly | |
| CN106838467A (en) | A kind of suspension rod and fastener for being applied to antidetonation suspension and support | |
| CN106132865A (en) | Seismic events damps and intermediate support for escalator and the lateral of moving elevator | |
| CN205076605U (en) | Elevator guide rail's mounting structure | |
| CN102514994A (en) | Safety protection device for elevator | |
| CN216904216U (en) | Suspension device for adjusting deflection angle of flat traveling cable | |
| CN211228910U (en) | Bidirectional guide rail friction pendulum type shock insulation support with anti-pulling function | |
| CN215516249U (en) | Brake assembly for safety protection device | |
| CN214652835U (en) | One-way safety tongs | |
| CN106995173B (en) | The restored method of restraint device, the elevator for having restraint device and restraint device | |
| CN208895933U (en) | A kind of anti-loose fastening device | |
| CN109911738B (en) | Large tonnage instantaneous safety tongs | |
| CN208623024U (en) | A kind of locking wire mechanism of electric connector | |
| CN114284972B (en) | Suspension device for adjusting deflection angle of flat trailing cable and adjusting method | |
| CN215626013U (en) | Bidirectional safety tongs | |
| CN208605543U (en) | Buffer unit | |
| CN202048077U (en) | Anti-looseness nut component | |
| CN220300062U (en) | Fixing device for elevator maintenance | |
| JP2017137154A (en) | Elevator | |
| CN209443631U (en) | Rope board supporting structure and the glass curtain wall for using the rope board supporting structure | |
| CN215716488U (en) | Ceiling keel joint | |
| CN211034136U (en) | Novel portal frame for constructional engineering construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |