CN115321388B - Swing arm lifting arm connector device and tower crane - Google Patents
Swing arm lifting arm connector device and tower crane Download PDFInfo
- Publication number
- CN115321388B CN115321388B CN202211112788.6A CN202211112788A CN115321388B CN 115321388 B CN115321388 B CN 115321388B CN 202211112788 A CN202211112788 A CN 202211112788A CN 115321388 B CN115321388 B CN 115321388B
- Authority
- CN
- China
- Prior art keywords
- boom
- joint bearing
- flange seat
- connector device
- felt
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a movable arm lifting arm connector device and a tower crane, which comprise a flange seat, an inner clamping spring and a joint bearing, wherein the inner clamping spring and the joint bearing are respectively arranged on the flange seat, the joint bearing is attached to the side surfaces of the inner clamping spring, and sealing pieces are arranged in sealing grooves of the flange seat at two ends of the joint bearing. The movable arm and boom connector device can ensure that the connection point is sufficiently lubricated when the boom works, reduce the friction coefficient when the boom changes amplitude, and is convenient to install and replace; the joint bearing adopted has a aligning function, and can solve the problem that the coaxiality tolerance value of two connecting points of the crane arm and the upper support is large.
Description
Technical Field
The invention relates to a movable arm lifting arm connector device and a tower crane, and belongs to the technical field of tower cranes.
Background
The connection point of the crane boom and the upper support is a joint point in the tower crane. In the operation of the tower crane, the connection point of the crane boom and the upper support needs to support the crane boom for carrying out lifting, and the crane boom can rotate in the amplitude-changing process. Therefore, the design of the joint points directly influences the working performance of the crane.
The connecting point structure of the lifting arm and the upper support is generally of a cylindrical sliding bearing type structure, as shown in fig. 1, the upper support 5 is connected with the lifting arm 3 through a pin shaft 2, a bearing 4 is arranged between the pin shaft 2 and the lifting arm 3, grease is added through an oil cup 1 when grease is required to be added, the structure has the advantages of simple structure and lower cost, but poor lubrication is also caused, the shaft and a bearing bush are bonded, indentation is formed in the bearing bush when the stress is large, the friction coefficient between the shaft and the bearing bush is large, the sliding bearing is inconvenient to install and replace, the aligning function is not realized, the bearing is in direct contact with finishing air, and floating dust particles in the air easily enter a contact area of the shaft and the bearing bush, so that the damage of the bearing is accelerated and the like.
Disclosure of Invention
The invention provides a movable arm and boom connector device and a tower crane aiming at the problems existing in the prior art.
In order to achieve the above purpose, the movable arm lifting arm connector device comprises a flange seat, an inner clamp spring and a joint bearing, wherein the inner clamp spring and the joint bearing are respectively arranged on the flange seat, the joint bearing is attached to the side surfaces of the inner clamp spring, and sealing pieces are arranged in sealing grooves of the flange seat at two ends of the joint bearing.
As an improvement, felt is arranged in the sealing grooves at two ends of the flange seat.
As improvement, a first felt and a shaft sleeve are arranged in a sealing groove at the left end of the flange seat, and the shaft sleeve penetrates through an inner hole of the joint bearing and supports the first felt.
As improvement, a second felt and a check ring are arranged in the right end sealing groove of the flange seat, and the check ring supports the second felt.
As an improvement, an outer clamp spring is arranged on the right side of the retainer ring.
As an improvement, a baffle is arranged at the right end of the flange seat.
As an improvement, the left and right sides of the knuckle bearing are filled with grease.
In addition, the invention also provides a tower crane, and the movable arm and boom connector device is arranged on the tower crane.
The tower crane comprises a boom and an upper support, the boom connector device being mounted between the boom and the upper support.
As an improvement, the movable arm-crane arm connector device is connected with the crane arm through a second pin roll, and the movable arm-crane arm connector device is connected with the upper support through a bolt.
Compared with the prior art, the movable arm and boom connector device can ensure that the connection point is sufficiently lubricated when the boom works, reduce the friction coefficient when the boom changes amplitude, and is convenient to install and replace; the joint bearing adopted has a aligning function, and can solve the problem that the coaxiality tolerance value of two connecting points of the crane arm and the upper support is large.
Drawings
FIG. 1 is a schematic view of a prior art cylindrical slide bearing type structure;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is an A-A view of the present invention;
FIG. 4 is a schematic diagram of the use structure of the present invention;
in the figure: 1. the device comprises an oil cup, 2, a first pin roll, 3, a boom, 4, a bearing, 5, an upper support, 6, a flange seat, 7, a first felt, 8, an inner clamping spring, 9, a shaft sleeve, 10, a joint bearing, 11, a second felt, 12, an outer clamping spring, 13, a retainer ring, 14, a baffle, 15, a bolt, 16, a boom connector device, 17 and a second pin roll.
Detailed Description
The present invention will be described in further detail below in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in this description of the invention are for the purpose of describing particular embodiments only and are not intended to be limiting of the invention.
In the description of the present invention, it should be understood that the azimuth or positional relationship indicated by the terms "left", "right", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the protection content of the present invention.
As shown in fig. 2, 3 and 4, the boom-up connector device comprises a flange seat 6, an inner clamping spring 8 and a joint bearing 10, wherein the joint bearing 10 has a certain aligning function and can compensate coaxiality tolerance of a middle plate hole of an ear plate of an upper support seat, the inner clamping spring 8 and the joint bearing 10 are respectively arranged on the flange seat 6, the joint bearing 10 is attached to the side surfaces of the inner clamping spring 8, and sealing pieces are arranged in sealing grooves of the flange seats 6 at two ends of the joint bearing 10.
As an improvement of the embodiment, felt is installed in the sealing grooves at two ends of the flange seat 6. Specifically, as shown in fig. 3, a first felt 7 and a shaft sleeve 9 are installed in a sealing groove at the left end of the flange seat 6, and the shaft sleeve 9 penetrates through an inner hole of the knuckle bearing 10 and supports the first felt 7; the sealing groove at the right end of the flange seat 6 is internally provided with a second felt 11 and a retainer ring 13, the retainer ring 13 supports the second felt 11, the right side of the retainer ring 13 is provided with an outer clamp spring 12, the right end of the flange seat 6 is provided with a baffle 14, and the sealing groove is reasonable in structure and convenient to install and replace.
As an improvement of the embodiment, the left and right sides of the joint bearing 10 are filled with grease, the joint bearing 10 is sealed in a sealed cavity filled with grease, so that dust in air is effectively isolated from entering the joint bearing 10, the lubrication environment of the joint bearing 10 can be well protected, and the service life of the joint bearing 10 is prolonged.
In combination with the illustration of fig. 3, during installation, the inner clamp spring 8 and the knuckle bearing 10 are installed on the flange seat 6, the knuckle bearing 10 is attached to the side face of the inner clamp spring 8, then the first felt 7 and the second felt 11 are installed, then the shaft sleeve 9 passes through the inner hole of the knuckle bearing 10, the first felt 7 is supported, the first felt 7 is enabled to be filled in the left end sealing groove of the flange seat 6 to play a sealing role, the check ring 13 is enabled to be installed at the right end of the shaft sleeve 9 and is enabled to be fastened by the outer clamp spring 12, the second felt 11 is enabled to be filled in the right end sealing groove of the flange seat 6 to play a sealing role, and finally the baffle 14 is installed at the right end of the flange seat 6, so that the installation of the movable arm-jack connector device is completed. It should be noted that, before installing the first felt 7 and the second felt 11, a certain amount of grease is filled and sealed on the left and right sides of the knuckle bearing 10 for lubrication of the knuckle bearing 10.
In addition, the invention also provides a tower crane, and the movable arm and boom connector device is arranged on the tower crane.
As an improvement of the embodiment, the tower crane comprises a boom 3 and an upper support 5, said boom connector means 16 being mounted between the boom 3 and the upper support 5. As a further development of the embodiment, the boom arm connector device 16 is connected to the boom 3 by means of a second pin 17, and the boom arm connector device 16 is connected to the upper support 5 by means of a bolt 15.
Specifically, in the present invention, as shown in fig. 4, the boom arm connector device 16 is mounted on the upper support 5, the boom arm connector device 16 is connected with the boom 3 through the pin two 17, the boom assembly with the boom arm connector device 16 mounted thereon is placed on the lug plate of the upper support 5, the bolt holes on the lug plate of the upper support are aligned with the bolt holes on the boom arm connector device 16, the bolt 15 is penetrated, and the moment is tightened and pulled, thereby completing the mounting.
If manufacturing errors exist in the lug plates of the movable arm-crane arm connector device 16 mounted on the upper support 5, the arm support can be mounted through the aligning function of the joint bearing 10, and the working requirements of the crane arm 3 are met.
According to the invention, the cylindrical sliding bearing structure is changed into the joint bearing type connecting structure, so that the connection between the crane arm and the upper support is realized when the tower crane works, the lubricating property is good, the friction coefficient during rotation is reduced, and the installation and the disassembly are convenient.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (6)
1. The movable arm lifting arm connector device is characterized by comprising a flange seat (6), an inner clamping spring (8) and a joint bearing (10), wherein the inner clamping spring (8) and the joint bearing (10) are respectively arranged on the flange seat (6), the joint bearing (10) is attached to the side surface of the inner clamping spring (8), and felts are arranged in sealing grooves of the flange seat (6) at two ends of the joint bearing (10);
a first felt (7) and a shaft sleeve (9) are arranged in a sealing groove at the left end of the flange seat (6), and the shaft sleeve (9) penetrates through an inner hole of the knuckle bearing (10) and supports the first felt (7); a second felt (11) and a check ring (13) are arranged in a sealing groove at the right end of the flange seat (6), and the check ring (13) supports the second felt (11); grease is filled and sealed at the left side and the right side of the joint bearing (10).
2. A boom connector apparatus according to claim 1, characterized in that the right side of the retainer ring (13) is provided with an outer snap spring (12).
3. A boom connector apparatus according to claim 1 or 2, characterized in that the right end of said flange seat (6) is fitted with a baffle (14).
4. A tower crane having a boom connector apparatus as claimed in any one of claims 1 to 3 mounted thereon.
5. A tower crane according to claim 4, comprising a boom (3) and an upper support (5), said boom connector means (16) being mounted between the boom (3) and the upper support (5).
6. Tower crane according to claim 5, wherein the boom arm connector means (16) is connected to the boom (3) by means of a second pin (17), and the boom arm connector means (16) is connected to the upper support (5) by means of a bolt (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211112788.6A CN115321388B (en) | 2022-09-14 | 2022-09-14 | Swing arm lifting arm connector device and tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211112788.6A CN115321388B (en) | 2022-09-14 | 2022-09-14 | Swing arm lifting arm connector device and tower crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115321388A CN115321388A (en) | 2022-11-11 |
| CN115321388B true CN115321388B (en) | 2023-06-06 |
Family
ID=83929072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211112788.6A Active CN115321388B (en) | 2022-09-14 | 2022-09-14 | Swing arm lifting arm connector device and tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115321388B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09219951A (en) * | 1996-02-15 | 1997-08-19 | Matsushita Seiko Co Ltd | Bearing device for motor |
| CN201850084U (en) * | 2010-10-08 | 2011-06-01 | 长沙中联重工科技发展股份有限公司 | Connecting structure for crane boom and upper support and crane provided therewith |
| CN203428822U (en) * | 2013-08-15 | 2014-02-12 | 纽科伦（新乡）起重机有限公司 | Marine crane and rotary support structure of arm support thereof |
-
2022
- 2022-09-14 CN CN202211112788.6A patent/CN115321388B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115321388A (en) | 2022-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115321388B (en) | Swing arm lifting arm connector device and tower crane | |
| CN214888435U (en) | Bearing seat sealing structure | |
| CN104454956A (en) | Work vehicle chassis articulation joint | |
| CN201034121Y (en) | Porous lateral-binding transmission shaft intermediate supporting structure | |
| CN214530159U (en) | Universal ear seat | |
| CN216278991U (en) | High-lubrication fabric lining joint bearing | |
| CN213117121U (en) | Composite hinge with three rotational degrees of freedom | |
| CN211994996U (en) | Forklift steering axle | |
| CN210800051U (en) | Mechanical sealing element sealing structure | |
| CN210240327U (en) | Bearing positioning assembly positioning equipment | |
| CN214837871U (en) | Graphite composite bush bearing | |
| CN220204423U (en) | Four-point contact ball type slewing bearing with sealing structure | |
| CN216842668U (en) | Hub bearing convenient to install and fix | |
| CN217753398U (en) | Maintenance-free balanced suspension assembly | |
| CN220081913U (en) | Automobile balance shaft support | |
| CN113137466B (en) | Hanging device for gear box of aircraft engine | |
| CN219564689U (en) | Ball pin assembly and vehicle | |
| CN216618282U (en) | Bearing with dustproof and anti-pollution functions | |
| CN216552166U (en) | Pressing plate device for central pivot and central pivot tool comprising same | |
| CN218761290U (en) | Rotary gear box output end sealing structure, gear box and wind generating set | |
| CN218750990U (en) | Steering bridge connecting rod structure and engineering machinery | |
| CN216929760U (en) | Bearing seat with thrust structure | |
| CN213598397U (en) | Turnover pair, turnover arm and turnover table | |
| CN217355322U (en) | Novel brake shell with mounting structure | |
| CN220682072U (en) | Traction frame adopting ball pin structure and mining dump truck |
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 |