CN115448124B - Wedge lifting mechanism and lifting assembly - Google Patents
Wedge lifting mechanism and lifting assembly Download PDFInfo
- Publication number
- CN115448124B CN115448124B CN202110642142.8A CN202110642142A CN115448124B CN 115448124 B CN115448124 B CN 115448124B CN 202110642142 A CN202110642142 A CN 202110642142A CN 115448124 B CN115448124 B CN 115448124B
- Authority
- CN
- China
- Prior art keywords
- lifting
- wedge
- rod
- limiting part
- stroke adjusting
- 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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Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 240000004282 Grewia occidentalis Species 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 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 description 1
- 239000010959 steel Substances 0.000 description 1
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 lifting of safety tongs, and particularly relates to a wedge lifting mechanism and a lifting assembly. The wedge lifting mechanism comprises a lifting rod, a first limiting part, a wedge lifting seat, a stroke adjusting elastic part and a second limiting part, wherein the first limiting part, the wedge lifting seat, the stroke adjusting elastic part and the second limiting part are sequentially sleeved outside the lifting rod along the lifting direction of the lifting rod, and two ends of the stroke adjusting elastic part respectively lean against the second limiting part and the wedge lifting seat; the wedge lifting seat is used for being connected with the wedge in a linkage way. According to the wedge lifting mechanism, the stroke adjusting elastic piece is utilized to adaptively adjust the movable stroke of the wedge, so that the wedge contacts with the elevator guide rail to realize the safety braking of the elevator car.
Description
Technical Field
The invention belongs to the technical field of lifting of safety tongs, and particularly relates to a wedge lifting mechanism and a lifting assembly.
Background
Safety gear lifting mechanisms are an important component in elevator safety systems. When the elevator breaks down, the safety tongs wedge block is pulled by the pulling rod connected with the speed limiter steel wire rope, and when the safety tongs wedge block is clung to the guide rail, friction self-locking upward movement is generated, so that the safety tongs clamp the guide rail to brake the car.
The existing connection mode between the lifting rod and the wedge block is limited by the mutual influence of the lifting stroke adjustment of the lifting rod or the superposition of the double safety tongs, so that the synchronism of the safety tongs during linkage is easily influenced.
In order to solve the problem of synchronicity of the wedge blocks of the safety tongs, the lifting wedge block structure needs to be improved.
Disclosure of Invention
Based on the above-mentioned drawbacks and disadvantages of the prior art, an object of the present invention is to provide a wedge pulling mechanism and a pulling assembly.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the wedge lifting mechanism comprises a lifting rod, a first limiting part, a wedge lifting seat, a stroke adjusting elastic part and a second limiting part, wherein the first limiting part, the wedge lifting seat, the stroke adjusting elastic part and the second limiting part are sequentially sleeved outside the lifting rod along the lifting direction of the lifting rod, and two ends of the stroke adjusting elastic part respectively lean against the second limiting part and the wedge lifting seat; the wedge lifting seat is used for being connected with the wedge in a linkage way.
Preferably, the wedge lifting seat is provided with a mounting hole, and the mounting hole is penetrated by the fixing piece so as to be fixedly mounted with the wedge.
Preferably, the mounting hole is a kidney-shaped hole.
As an optimal scheme, the number of the mounting holes is two, and the 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 an optimal scheme, the first limiting piece and the second limiting piece are nuts or nut combinations, and the lifting rod is provided with first external threads and second external threads which respectively correspond to the first limiting piece and the second limiting piece.
As an optimal scheme, the lifting rod comprises a plurality of rod bodies which are connected in sequence, and the adjacent rod bodies are fixedly connected through lengthening 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, tetragonal or triangular structure.
Preferably, the diameter of the circumscribing circle of the lug is smaller than that of the Yu Dila rods.
The invention also provides a wedge lifting assembly, which is applied to lifting of a plurality of sets of wedges distributed along the lifting direction of the lifting rod, wherein each set of wedges is correspondingly provided with the wedge lifting mechanism according to any scheme, and the lifting rods of adjacent wedge lifting mechanisms are fixedly connected through lengthening nuts.
Compared with the prior art, the invention has the beneficial effects that:
According to the wedge lifting mechanism, the stroke adjusting elastic piece is utilized to adaptively adjust the movable stroke of the wedge, so that the wedge contacts with the elevator guide rail to realize the safety braking of the elevator car.
The wedge lifting assembly disclosed by the invention realizes synchronous lifting of a plurality of sets of wedges distributed along the lifting direction of the lifting rod, ensures the synchronicity of the wedges of the safety tongs and improves the braking safety of an elevator car.
Drawings
FIG. 1 is a schematic view of a wedge pulling mechanism according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a wedge pulling assembly according to embodiment 1 of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
Example 1:
The wedge lifting mechanism is applied to wedge lifting of safety tongs, and safety braking of an elevator car is achieved.
As shown in fig. 1, the wedge pulling mechanism of the embodiment comprises a pulling rod 1, and a first limiting piece 2, a wedge pulling seat 3, a stroke adjusting elastic piece 4 and a second limiting piece 5 which are sequentially sleeved outside the pulling rod 1 along the pulling direction (i.e. the vertical direction) of the pulling rod, wherein the upper end and the lower end of the stroke adjusting elastic piece 4 are respectively abutted against the second limiting piece 5 and the wedge pulling seat 3; the wedge lifting seat 3 is used for being connected with the wedge in a linkage way.
Specifically, the wedge pulling seat 3 of the present embodiment has a mounting hole 30 through which a fixing member (for example, a bolt or a screw or a pin) penetrates to be fixedly mounted with the wedge of the safety gear of the elevator, so as to realize linkage connection between the wedge pulling seat and the wedge. The two mounting holes 30 in this embodiment are symmetrically distributed on two sides of the lifting rod, so as to ensure the stability of lifting. In addition, the mounting hole 30 in this embodiment is a kidney-shaped hole, so that it is convenient to adapt to the adjustment of the mounting position of the wedge block, and has good adaptability. The shape of the mounting hole can be round holes or other commonly used hole-shaped structures besides the kidney-shaped hole in the embodiment.
The stroke adjusting elastic piece 4 of the embodiment is a compression spring, and the movable stroke of the wedge block can be adjusted in a self-adaptive mode, so that the contact friction between the wedge block and the elevator guide rail can realize the safe braking of the elevator car, and the processing and forming are convenient.
The first limiting piece 2 and the second limiting piece 5 in this embodiment are nut combinations, such as two nut combinations shown in fig. 1, but the number of nuts is not limited to two, and may be one, three, etc., specifically, the first limiting piece and the second limiting piece can be adjusted according to actual application requirements, and gaskets are arranged between the nuts; correspondingly, the lifting rod 1 has a first external thread and a second external thread corresponding to the first stop 2 and the second stop 5, respectively; and the two limiting parts are arranged to realize the limiting of the wedge lifting seat and the stroke adjusting elastic part.
As shown in fig. 2, the wedge lifting assembly of the embodiment is applied to lifting of two sets of wedges distributed along the lifting direction of the lifting rod (the number is not limited to two, and the number can be specifically adjusted according to practical application requirements), each set of wedges is correspondingly provided with the wedge lifting mechanism of the embodiment, and the lifting rods of adjacent wedge lifting mechanisms are fixedly connected through the extension nut 6, so that synchronous lifting of the two sets of wedges is realized. The bottom of the bottommost lifting rod is provided with a coaxial lug 10 in a downward extending mode, the cross section of the lug is of a hexagonal structure, the diameter of a circumcircle of the lug is smaller than that of a Yu Dila rod, and positioning and mounting of the lifting rod are facilitated. The cross section of the bump may be in a square or triangular structure.
Example 2:
The wedge pulling mechanism of this embodiment is different from embodiment 1 in that:
The lifting rod comprises a plurality of sections of rod bodies which are connected in sequence, and the adjacent rod bodies are fixedly connected through extension nuts, so that the lifting rod is convenient to install;
Correspondingly, the wedge lifting assembly of the embodiment adopts the wedge lifting mechanism of the embodiment;
Other structures can be referred to embodiment 1.
Example 3:
The wedge pulling mechanism of this embodiment is different from embodiment 1 in that:
The stroke adjusting elastic piece can also adopt a disc spring or the 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 lifting assembly of the embodiment adopts the wedge lifting mechanism of the embodiment;
Other structures can be referred to embodiment 1.
The foregoing is only illustrative of the preferred embodiments and principles of the present invention, and changes in specific embodiments will occur to those skilled in the art upon consideration of the teachings provided herein, and such changes are intended to be included within the scope of the invention as defined by the claims.
Claims (3)
1. The wedge lifting mechanism is characterized by comprising a lifting rod, a first limiting part, a wedge lifting seat, a stroke adjusting elastic part and a second limiting part, wherein the first limiting part, the wedge lifting seat, the stroke adjusting elastic part and the second limiting part are sequentially sleeved outside the lifting rod along the lifting direction of the lifting rod, and two ends of the stroke adjusting elastic part respectively lean against the second limiting part and the wedge lifting seat; the wedge lifting seat is used for being connected with the wedge in a linkage way;
The wedge lifting seat is provided with a mounting hole, and the wedge lifting seat penetrates through the mounting hole through the fixing piece so as to be fixedly mounted with the wedge;
The mounting hole is a kidney-shaped hole;
the two mounting holes are symmetrically distributed on the two sides of the lifting rod;
The stroke adjusting elastic piece is a compression spring, a belleville spring or a combination of the compression spring and the belleville spring;
the lifting rod comprises a plurality of sections of rod bodies which are connected in sequence, and the adjacent rod bodies are fixedly connected through lengthening nuts;
the end part of the lifting rod is provided with a lug, and the section of the lug is in a hexagonal, four-corner or triangular structure;
the diameter of the circumcircle of the lug is smaller than that of a Yu Dila rod.
2. A wedge pulling mechanism according to claim 1, wherein the first and second stop members are nuts or a combination of nuts, and the pull rod has first and second external threads corresponding to the first and second stop members, respectively.
3. A wedge lifting assembly for lifting a plurality of sets of wedges distributed along the lifting direction of a lifting rod, characterized in that each set of wedges is correspondingly provided with a wedge lifting mechanism as claimed in any one of claims 1-2, and the lifting rods of adjacent wedge lifting mechanisms are fixedly connected through extension 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 CN115448124A (en) | 2022-12-09 |
| CN115448124B true CN115448124B (en) | 2024-05-07 |
Family
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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 |
|---|---|
| CN115448124A (en) | 2022-12-09 |
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