CN113415742B - Crane telescopic boom sliding block assembly - Google Patents
Crane telescopic boom sliding block assembly Download PDFInfo
- Publication number
- CN113415742B CN113415742B CN202110880976.2A CN202110880976A CN113415742B CN 113415742 B CN113415742 B CN 113415742B CN 202110880976 A CN202110880976 A CN 202110880976A CN 113415742 B CN113415742 B CN 113415742B
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- inner cavity
- wall
- block
- frame
- sliding block
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- 230000006835 compression Effects 0.000 claims abstract description 24
- 238000007906 compression Methods 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 14
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses a telescopic arm sliding block assembly of a crane, which belongs to the technical field of telescopic arms of cranes and comprises an outer telescopic part, an inner telescopic part, a sliding block, a compression spring and a frame, wherein the frame is arranged on the outer wall of the inner telescopic part, an adjusting mechanism is inserted in the inner cavity of the frame in a sliding way, the compression spring is arranged between the adjusting mechanism and the inner cavity of the frame, the outer wall of the adjusting mechanism is connected with the sliding block, the outer wall of one side of the sliding block, which is far away from the adjusting mechanism, is attached to the inner wall of the outer telescopic part, when the compression spring is compressed through the downward movement of the mounting frame, air in the frame is extruded into the inner cavity of the mounting box, a moving plate is pushed upwards, and when the compression spring is compressed to a large extent, two groups of conducting plates are attached to each other, so that an electromagnet is powered off, a repulsive force between the electromagnet and a magnetic block can be moved in the inner cavity of the mounting frame, the compression degree of the compression spring is reduced, the thrust born by the sliding block is reduced, and abrasion caused by the sliding block is reduced.
Description
Technical Field
The invention relates to the technical field of telescopic booms of cranes, in particular to a sliding block assembly of a telescopic boom of a crane.
Background
The telescopic boom of the crane is an important component part in the crane, the sliding block is a part in the telescopic boom, in order to improve the use effect of the sliding block, the sliding block can be in self-adaptive contact with the telescopic boom, an elastic element is installed at the sliding block, the mode is disclosed in the publication of the telescopic boom sliding block assembly of the automobile crane with the application number of CN200710049912.8, however, in the self-adaptive process of the sliding block, the elastic element is compressed, the spring element is compressed, the thrust born by the sliding block is increased, the pressure of the contact surface of the sliding block and other areas is increased, the abrasion amplitude of the sliding block is increased, and the service life of the sliding block is influenced, so that the telescopic boom sliding block assembly of the crane is proposed.
Disclosure of Invention
The invention aims to provide a telescopic boom slider assembly of a crane, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the telescopic boom sliding block assembly of the crane comprises an outer telescopic part, an inner telescopic part, a sliding block, a compression spring and a frame, wherein the frame is arranged on the outer wall of the inner telescopic part, an adjusting mechanism is inserted in the inner cavity of the frame in a sliding mode, the compression spring is arranged between the adjusting mechanism and the inner cavity of the frame, the outer wall of the adjusting mechanism is connected with the sliding block, and the outer wall of one side, far away from the adjusting mechanism, of the sliding block is attached to the inner wall of the outer telescopic part.
Preferably, the adjustment mechanism comprises a mounting frame which is inserted in the inner cavity of the frame in a sliding manner, a supporting block is inserted in the inner cavity of the mounting frame in a sliding manner, one side outer wall of the supporting block, which is far away from the mounting frame, is connected with one side outer wall of the sliding block, which is close to the mounting frame, of the supporting block, an electromagnet is arranged on one side outer wall of the supporting block, which is close to the mounting frame, a magnetic block is arranged in the inner cavity of the mounting frame, a mounting box is arranged on the outer wall of the frame, the mounting box is communicated with the inner cavity of the frame through an opening, a moving plate is arranged in the inner cavity of the mounting box in a sliding manner, conductive sheets are arranged on the top outer wall of the top of the moving plate and the top of the inner cavity of the mounting box, and the conductive sheets are electrically connected with the electromagnet.
Preferably, the rubber plate is installed to frame inner chamber bottom, the rubber plate inner chamber is filled with air, and the mounting box communicates with the rubber plate inner chamber through the opening.
Preferably, the outer wall of the top of the installation box is in threaded connection with an adjusting screw, the bottom end of the adjusting screw extends into the inner cavity of the installation box and is connected with a movable plate, and the outer wall of the bottom of the movable plate is connected with the outer wall of the top of the upper conductive sheet.
Preferably, a limiting block is movably arranged at the bottom of the inner cavity of the mounting frame, and the outer wall of the top of the limiting block is attached to the outer wall of the bottom of the supporting block.
Preferably, the installing port is set up to installing frame bottom inner wall, the stopper bottom is inserted in the inner chamber of installing port, the sliding block is installed to the stopper outer wall, the spout has been seted up to the installing port inner chamber, and the sliding block slides and insert in the inner chamber of spout, and installs reset spring between sliding block and the spout inner chamber, installing frame inner chamber bottom slidable mounting has the fixed block, the fixed slot with fixed block assorted is seted up to the stopper outer wall, and the one end that the fixed block is close to the stopper is inserted in the inner chamber of fixed slot, the installing slot has been seted up to installing frame bottom outer wall, the pull block has been inserted in the sliding of installing slot inner chamber bottom, install the stay cord between pull block top outer wall and the fixed block outer wall, the briquetting is installed to the frame inner chamber, and the briquetting is located the below of pull block.
Preferably, the guide block is installed on the outer wall of the pressing block, the guide groove is formed in the connecting part of the frame and the pressing block, the guide block is inserted into the inner cavity of the guide groove in a sliding mode, and the connecting spring is installed between the guide block and the inner cavity of the guide groove.
Compared with the prior art, the invention has the beneficial effects that:
1. when the compression springs are compressed through the downward movement of the mounting frame, air in the frame is extruded into the inner cavity of the mounting box, the moving plate is pushed upwards, when the compression springs are compressed to a large extent, the two groups of conducting plates are attached, the electromagnet is powered off, repulsive force between the electromagnet and the magnetic block disappears, the supporting block can move in the inner cavity of the mounting frame, the compression degree of the compression springs is reduced, the thrust born by the sliding block is reduced, and abrasion of the sliding block is reduced;
2. the supporting blocks are supported through the limiting blocks, so that the supporting blocks can move only when the compression springs are compressed to a large extent, and the triggering accuracy of the adjusting mechanism is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of an adjustment mechanism of the present invention;
FIG. 3 is a schematic diagram of a connection structure between a mounting frame and a support block according to the present invention;
FIG. 4 is a schematic cross-sectional view of the mounting box of the present invention.
In the figure: 1. an outer extension portion; 2. an inner telescoping portion; 3. a slide block; 4. a compression spring; 5. an adjusting mechanism; 51. a mounting frame; 52. a support block; 53. an electromagnet; 54. a magnetic block; 55. a mounting box; 56. a moving plate; 57. a rubber plate; 58. briquetting; 59. a mounting port; 510. a limiting block; 511. a fixed block; 512. a mounting groove; 513. pulling blocks; 514. a conductive sheet; 515. a movable plate; 516. adjusting a screw; 6. and a frame.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
the invention provides a technical scheme that: referring to fig. 1, the telescopic arm sliding block assembly of the crane comprises an outer telescopic part 1, an inner telescopic part 2, a sliding block 3, a compression spring 4 and a frame 6;
referring to fig. 1 and 2, a frame 6 is mounted on the outer wall of an inner telescopic part 2, an adjusting mechanism 5 is slidably inserted in the inner cavity of the frame 6, a compression spring 4 is mounted between the adjusting mechanism 5 and the inner cavity of the frame 6, the outer wall of the adjusting mechanism 5 is connected with a sliding block 3, the outer wall of one side of the sliding block 3 far away from the adjusting mechanism 5 is attached to the inner wall of the outer telescopic part 1, and due to the action of the compression spring 4, the sliding block 3 can be in self-adaptive contact with a telescopic arm in the same manner as the working mode proposed in the disclosure of an automobile crane telescopic arm sliding block assembly with the application number of CN 200710049912.8;
referring to fig. 2 and 4, the adjusting mechanism 5 includes a mounting frame 51 slidably inserted in an inner cavity of the frame 6, a supporting block 52 is slidably inserted in the inner cavity of the mounting frame 51, an outer wall of one side of the supporting block 52 away from the mounting frame 51 is connected with an outer wall of one side of the sliding block 3 close to the mounting frame 51, an electromagnet 53 is mounted on an outer wall of one side of the supporting block 52 close to the mounting frame 51, a magnetic block 54 is mounted in the inner cavity of the mounting frame 51, a mounting box 55 is mounted on an outer wall of the frame 6, the mounting box 55 is communicated with the inner cavity of the frame 6 through an opening, a moving plate 56 is slidably mounted in the inner cavity of the mounting box 55, conductive plates 514 are mounted on the top outer wall of the top of the moving plate 56 and the top of the inner cavity of the mounting box 55, the upper conductive plates 514 are electrically connected with the electromagnet 53, the lower conductive plates 514 are electrically connected with an external power supply, and in a process of self-adapting contact of the sliding block 3, when the sliding block 3 moves into the inner cavity of the frame 6, the compressing spring 4 compresses, air in the frame 6 is extruded into the inner cavity of the mounting box 55, the moving plate 56 is pushed upwards until the compressing spring 4 is compressed to a large extent, the repulsive force is made to be attached to the two groups of conductive plates 514, the electromagnet 53 is attached to the inner cavity of the electromagnet 53, the electromagnet 53 is electrically conductive plates and the electromagnet 53 is electrically connected with the electromagnet 53, the inner cavity of the electromagnet 52, and the compressing spring 4 is compressed, and the inner cavity is compressed tightly;
referring to fig. 2, a rubber plate 57 is installed at the bottom of the inner cavity of the frame 6, the inner cavity of the rubber plate 57 is filled with air, the installation box 55 is communicated with the inner cavity of the rubber plate 57 through an opening, the compression spring 4 is compressed, the rubber plate 57 is extruded, the air in the rubber plate 57 enters the inner cavity of the installation box 55 to push the moving plate 56, and the air is ensured to enter the inner cavity of the installation box 55;
referring to fig. 2 and 4, an adjusting screw 516 is screwed to the top outer wall of the mounting box 55, the bottom end of the adjusting screw 516 extends into the inner cavity of the mounting box 55 and is connected to the movable plate 515, and the bottom outer wall of the movable plate 515 is connected to the top outer wall of the upper conductive sheet 514, so that the distance between the two groups of conductive sheets 514 can be adjusted.
Example 2:
referring to fig. 2 and 3, based on embodiment 1, a limiting block 510 is movably mounted at the bottom of the inner cavity of the mounting frame 51, and the outer wall of the top of the limiting block 510 is attached to the outer wall of the bottom of the supporting block 52, so as to support the supporting block 52, so that the supporting block 52 cannot automatically move to the inner cavity of the mounting frame 51;
referring to fig. 3, an inner wall of a bottom of a mounting frame 51 is provided with a mounting opening 59, a bottom end of a limiting block 510 is inserted into an inner cavity of the mounting opening 59, a sliding block is mounted on an outer wall of the limiting block 510, a sliding groove is provided in the inner cavity of the mounting opening 59, the sliding block is inserted into the inner cavity of the sliding groove in a sliding manner, a return spring is mounted between the sliding block and the inner cavity of the sliding groove, a fixed block 511 is mounted on the bottom of the inner cavity of the mounting frame 51 in a sliding manner, the fixed block 511 is mounted in the inner cavity of the mounting frame 51 through a spring, a fixed groove matched with the fixed block 511 is provided on the outer wall of the limiting block 510, one end of the fixed block 511 close to the limiting block 510 is inserted into the inner cavity of the fixed groove, a mounting groove 512 is provided on the outer wall of the bottom of the mounting frame 51, a pull block 513 is inserted at the bottom of the inner cavity of the mounting groove 512 in a sliding manner, a pull rope is arranged between the outer wall of the top of the pull block 513 and the outer wall of the fixed block 511, a pressing block 58 is arranged in the inner cavity of the frame 6, the pressing block 58 is positioned below the pull block 513, when the compression spring 4 is compressed, the mounting frame 51 moves into the inner cavity of the frame 6, the pull block 513 is contacted with the pressing block 58, the pull block 513 is pushed upwards, the pull rope is pulled, the fixed block 511 is moved out of the inner cavity of the fixed groove, the limiting block 510 can move in the inner cavity of the mounting opening 59, the supporting block 52 can move when the compression spring 4 is compressed to a large extent, and the triggering accuracy of the regulating mechanism 5 is ensured;
referring to fig. 2, a guide block is installed on the outer wall of the pressing block 58, a guide groove is formed at the connection part of the frame 6 and the pressing block 58, the guide block is slidably inserted into the inner cavity of the guide groove, a connecting spring is installed between the guide block and the inner cavity of the guide groove, the guide block, the guide groove and the connecting spring are not protruded in the figure, when the pulling block 513 is pushed upwards to be unable to move, and the compression spring 4 is continuously compressed, the pressing block 58 can move in the inner cavity of the frame 6 through the sliding of the guide block, and normal operation of the device is not affected;
compared with the embodiment 1, the mounting port 59, the limiting block 510 and other parts are added, so that the supporting block 52 can move when the compression spring 4 is compressed to a large extent, and the triggering accuracy of the adjusting mechanism 5 is ensured.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The telescopic boom sliding block assembly of the crane comprises an outer telescopic part (1), an inner telescopic part (2), a sliding block (3), a compression spring (4) and a frame (6), and is characterized in that: the frame (6) is arranged on the outer wall of the inner telescopic part (2), an adjusting mechanism (5) is slidably inserted into the inner cavity of the frame (6), a compression spring (4) is arranged between the adjusting mechanism (5) and the inner cavity of the frame (6), the outer wall of the adjusting mechanism (5) is connected with the sliding block (3), one side outer wall of the sliding block (3) far away from the adjusting mechanism (5) is attached to the inner wall of the outer telescopic part (1), the adjusting mechanism (5) comprises a mounting frame (51) slidably inserted into the inner cavity of the frame (6), a supporting block (52) is slidably inserted into the inner cavity of the mounting frame (51), one side outer wall of the supporting block (52) far away from the mounting frame (51) is connected with one side outer wall of the sliding block (3) close to the mounting frame (51), an electromagnet (53) is arranged on one side outer wall of the supporting block (52) close to the mounting frame (51), a magnetic block (54) is arranged in the inner cavity of the mounting frame (6), a mounting box (55) is arranged on the outer wall of the sliding block (55) and is communicated with the inner cavity of the frame (6), a top inner cavity (56) is arranged on the sliding plate (56), the upper side conducting strip (514) is electrically connected with the electromagnet (53), adjusting screw (516) is connected to the outer wall of the top of the installation box (55) in a threaded manner, the bottom end of the adjusting screw (516) extends into the inner cavity of the installation box (55) and is connected with the movable plate (515), the outer wall of the bottom of the movable plate (515) is connected with the outer wall of the top of the upper side conducting strip (514), a limiting block (510) is movably arranged at the bottom of the inner cavity of the installation frame (51), the outer wall of the top of the limiting block (510) is attached to the outer wall of the bottom of the supporting block (52), an installation opening (59) is formed in the inner wall of the bottom of the installation frame (51), the bottom end of the limiting block (510) is inserted into the inner cavity of the installation opening (59), a sliding block is installed on the outer wall of the limiting block (510), a sliding block is arranged in the inner cavity of the installation opening (59), the sliding block is slidingly inserted into the inner cavity of the sliding groove, a reset spring is installed between the sliding block and the inner cavity of the sliding block (511), the inner cavity of the installation frame (51) is slidingly provided with a fixed block (511), the outer wall of the fixed block (510) is fixedly arranged on the inner wall of the inner cavity of the sliding block (511), one end of the sliding block is close to the inner cavity of the sliding block (512), a pull rope is arranged between the outer wall of the top of the pull block (513) and the outer wall of the fixed block (511), a pressing block (58) is arranged in the inner cavity of the frame (6), and the pressing block (58) is positioned below the pull block (513).
2. The crane telescoping arm slide assembly of claim 1 wherein: the rubber plate (57) is installed at the bottom of the inner cavity of the frame (6), the inner cavity of the rubber plate (57) is filled with air, and the installation box (55) is communicated with the inner cavity of the rubber plate (57) through an opening.
3. The crane telescoping arm slide assembly of claim 1 wherein: the guide block is arranged on the outer wall of the pressing block (58), a guide groove is formed in the connecting position of the frame (6) and the pressing block (58), the guide block is inserted into the inner cavity of the guide groove in a sliding mode, and a connecting spring is arranged between the guide block and the inner cavity of the guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110880976.2A CN113415742B (en) | 2021-08-02 | 2021-08-02 | Crane telescopic boom sliding block assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110880976.2A CN113415742B (en) | 2021-08-02 | 2021-08-02 | Crane telescopic boom sliding block assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113415742A CN113415742A (en) | 2021-09-21 |
| CN113415742B true CN113415742B (en) | 2023-06-23 |
Family
ID=77718707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110880976.2A Active CN113415742B (en) | 2021-08-02 | 2021-08-02 | Crane telescopic boom sliding block assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113415742B (en) |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE286849T1 (en) * | 1999-04-29 | 2005-01-15 | Terex Demag Gmbh & Co Kg | CRANE WITH A TELESCOPIC BOOM |
| AT409485B (en) * | 1999-05-18 | 2002-08-26 | Winter Udo Ing Mag | TELESCOPIC BOOM FOR A VEHICLE OR A LIFT |
| DE102005006118A1 (en) * | 2005-02-10 | 2006-08-24 | Grove U.S. Llc | Self-adjusting slider for telescopic crane jib |
| CN101376485B (en) * | 2007-08-29 | 2010-12-22 | 四川长江工程起重机有限责任公司 | Telescopic arm slipper block component of crane truck |
| JP5625309B2 (en) * | 2009-10-13 | 2014-11-19 | コベルコクレーン株式会社 | boom |
| CN201598123U (en) * | 2009-12-14 | 2010-10-06 | 北汽福田汽车股份有限公司 | Supporting slide block and device with box-shaped suspension arm |
| CN201962001U (en) * | 2010-11-04 | 2011-09-07 | 三一汽车起重机械有限公司 | Slide-block assembly of crane telescopic arm, crane telescopic arm and crane |
| CN102229413A (en) * | 2011-05-25 | 2011-11-02 | 三一汽车起重机械有限公司 | Latch-type telescopic boom and crane with telescopic boom |
| CN202369300U (en) * | 2011-12-15 | 2012-08-08 | 中国矿业大学 | Self-adjustment sliding block component for clearances among horizontal supporting legs of crane |
| CN205114864U (en) * | 2015-10-13 | 2016-03-30 | 北汽福田汽车股份有限公司 | Hoist cantilever crane and lubricating arrangement thereof |
| CN205045764U (en) * | 2015-10-26 | 2016-02-24 | 福建省威盛机械发展有限公司 | Clearance adjustment device between flexible arm |
| CN207918315U (en) * | 2018-03-06 | 2018-09-28 | 太原科技大学 | A kind of electromagnetic type slide block device applied to telescopic arm |
| CN208327202U (en) * | 2018-04-25 | 2019-01-04 | 中船绿洲镇江船舶辅机有限公司 | A kind of adjustable telescopic arm slide block structure |
| CN108749753B (en) * | 2018-06-05 | 2021-03-02 | 李嘉斌 | Magnetic car crash shock absorber |
| CN208500191U (en) * | 2018-06-29 | 2019-02-15 | 贵州黔力重工有限公司 | A kind of tower crane trolley preventing wire rope from falling slot device |
| CN109867217B (en) * | 2019-03-28 | 2020-05-26 | 武汉理工大学 | Two-way linkage type crane buffer device |
| CN110803487B (en) * | 2019-10-05 | 2021-04-16 | 绍兴迪艾仕机械设计有限公司 | Self-cleaning device of roller-hearth heat treatment furnace for bearing treatment |
| CN111030370B (en) * | 2019-12-20 | 2021-03-05 | 无锡新大力电机有限公司 | Motor with electromagnetic brake |
| CN212151412U (en) * | 2020-03-26 | 2020-12-15 | 三一汽车制造有限公司 | Boom assembly and crane |
| CN111977528B (en) * | 2020-09-25 | 2021-04-20 | 重庆鼎山起重设备有限公司 | Crane with cantilever adjusting mechanism |
-
2021
- 2021-08-02 CN CN202110880976.2A patent/CN113415742B/en active Active
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| Publication number | Publication date |
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| CN113415742A (en) | 2021-09-21 |
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