CN114933252A - Adjustable sliding block assembly and telescopic boom - Google Patents
Adjustable sliding block assembly and telescopic boom Download PDFInfo
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- CN114933252A CN114933252A CN202210771734.4A CN202210771734A CN114933252A CN 114933252 A CN114933252 A CN 114933252A CN 202210771734 A CN202210771734 A CN 202210771734A CN 114933252 A CN114933252 A CN 114933252A
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- sliding block
- adjustable
- arm section
- block
- fixed
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- 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
- B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
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- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention provides an adjustable sliding block assembly, which comprises an adjuster, an adjustable sliding block and a fixed seat, wherein the adjuster is arranged on the adjustable sliding block; the regulator comprises a regulating piece and a regulating block which are movably connected; the adjusting block and the adjustable slide block are provided with saw-toothed structures which are matched with each other along the moving direction of the adjusting piece; the regulator is installed on the fixing base, is equipped with the spacing frame that is used for placing adjustable slider on the fixing base, makes adjustable slider follow the sawtooth direction of height of cockscomb structure motion in the adjustment process. The invention also provides a telescopic arm support provided with the adjustable sliding block assembly, which comprises an inner arm section and an outer arm section which are connected in a sliding manner; the fixing seat is integrally arranged at the tail end of the inner arm section, and the limiting frame is arranged on the side wall of the inner arm section; one side of the adjustable sliding block, which is far away from the sawtooth-shaped structure, is contacted with the inner side wall of the outer arm section. When the adjustable sliding block is abraded, the adjustable sliding block is lifted through the inclined plane of the sawtooth-shaped structure, so that the gap between the adjustable sliding block and the inner side wall of the telescopic arm support is adjusted, and the replacement frequency of the sliding block is reduced.
Description
Technical Field
The invention relates to the technical field of construction equipment, in particular to an adjustable sliding block assembly and a telescopic arm support.
Background
In large-scale construction equipment, in order to adjust the spatial position of an actuating mechanism in a tunnel, a telescopic boom is often used for adjusting the stroke of the actuating mechanism.
And in order to reduce the friction between the arm sections of the telescopic arm frame, a sliding block is arranged inside the telescopic arm frame. The existing telescopic boom sliding block is generally and directly fixedly connected to the tail of the small boom and the front of the large boom, only an arm support end cover can be opened for replacement when the sliding block is worn too much and needs to be replaced, even some sliding blocks without end covers can only be replaced by detaching the boom through hoisting equipment, the work is troublesome and laborious, and the project progress is delayed.
The adjustable sliding block assembly in the prior art has the defects that the space occupancy rate of the adjustable sliding block assembly is too large due to the complex adjusting mechanism, so that the structural strength of the telescopic arm frame is influenced due to the too large gap between the arm sections for installing the adjustable sliding block assembly.
In summary, there is a need for an adjustable sliding block assembly and a telescopic boom to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide an adjustable sliding block assembly and a telescopic arm support, and aims to solve the problem of sliding block abrasion in the use process of the telescopic arm support.
In order to achieve the purpose, the invention provides an adjustable sliding block assembly which comprises an adjuster, an adjustable sliding block and a fixed seat; the regulator comprises a regulating part and a regulating block which are movably connected and is used for realizing the movement of the regulating block along the length direction of the regulating part; the adjusting block and the adjustable sliding block are provided with sawtooth structures which are matched with each other along the moving direction of the adjusting piece; the regulator is installed on the fixing base, and the fixing base is provided with a limiting frame for placing the adjustable sliding block, so that the adjustable sliding block moves along the sawtooth height direction of the sawtooth structure in the regulating process.
Preferably, the fixing seat further comprises an adjusting block support, and one side of the adjusting block, which is far away from the adjustable sliding block, is in support contact with the adjusting block.
Preferably, one side of the adjusting block, which is far away from the adjustable sliding block, is provided with a connecting portion, the adjusting block support is provided with a sliding groove for extending out of the connecting portion, and one end of the connecting portion, which extends out of the adjusting block support, is movably connected with the adjusting part.
Preferably, one side of the adjustable sliding block, which is far away from the adjusting block, is provided with a first oil groove.
The invention also provides a telescopic arm support which is provided with the adjustable sliding block assembly, wherein the telescopic arm support comprises an inner arm section and an outer arm section which are connected in a sliding manner; the fixed seat is integrally arranged at the tail end of the inner arm section, and the limiting frame is arranged on the side wall of the inner arm section; one side of the adjustable sliding block, which is far away from the sawtooth-shaped structure, is contacted with the inner side wall of the outer arm section.
Preferably, a detachable cover plate and a first oil cup are arranged on the side wall of the outer arm section; and the detachable cover plate is provided with a through hole for mounting the first oil cup.
Preferably, the front end of the outer arm section is detachably provided with a fixed sliding block assembly.
Preferably, the fixed slide block assembly comprises a slide block retainer and a fixed slide block, and one end of the slide block retainer is provided with a flange plate used for being connected with the outer arm section; the periphery of the sliding block retainer is provided with a plurality of mounting grooves for placing the fixed sliding blocks, so that the fixed sliding blocks are positioned between the side wall of the inner arm section and the side wall of the outer arm section.
Preferably, the fixed sliding block assembly further comprises a sealing ring and a sealing plate; a plurality of mounting holes are correspondingly formed in the flange plate and the sealing plate one by one and used for inserting connecting pieces to realize the connection of the fixed sliding block assembly and the outer arm section; the sealing ring is positioned between the flange plate and the closing plate.
Preferably, a plurality of oil cup assemblies are arranged on the side wall of the front end of the outer arm section, and each oil cup assembly comprises a second oil cup, a special-shaped bolt and a special-shaped nut which are coaxially communicated; the fixed sliding block is provided with a fixed groove for mounting the special-shaped nut;
one side of the fixed sliding block, which is close to the inner arm section, is provided with a second oil groove; and the second oil groove is communicated with the fixed groove.
The technical scheme of the invention has the following beneficial effects:
(1) according to the invention, the adjustable slide block assembly comprises the adjusting block and the adjustable slide block which are matched through the saw-toothed structure, when the adjustable slide block is abraded, the adjusting block is driven by the adjusting part to move, and the adjustable slide block is lifted through the inclined plane of the saw-toothed structure, so that the gap between the adjustable slide block and the inner side wall of the telescopic arm frame is adjusted, and the frequency of slide block replacement is reduced.
(2) According to the invention, the limiting frame is arranged in the fixed seat, and the adjustable sliding block cannot move in the horizontal direction and can only be lifted in the vertical direction under the action of the limiting frame, so that the gap between the adjustable sliding block and the inner side wall of the outer arm section is adjusted.
(3) According to the invention, the longitudinal height adjustment of the adjustable sliding block can be realized through the plurality of sawtooth inclined surfaces in the sawtooth-shaped structure, the adjustment height is determined through the sawtooth height, and compared with a common wedge block adjustment mode, the wedge block height adjusting device has the advantage that the higher height adjustment can be realized through a smaller adjustment stroke; therefore, the overall space occupancy rate of the adjustable slide block assembly can be reduced, and the problem that the strength of the arm support is influenced by overlarge installation clearance of the adjustable slide block assembly between the outer arm section and the inner arm section is avoided.
(4) In the invention, the adjusting block support is arranged on one side of the adjusting block, which is far away from the adjustable sliding block, so that the adjusting block can move stably, and the bending of the adjusting piece caused by the pressure of the adjusting block is avoided, thereby increasing the adjusting operation resistance between the adjusting piece and the adjusting block.
(5) According to the adjustable sliding block assembly, the connecting part is arranged on one side, away from the adjustable sliding block, of the adjusting block, the sliding groove used for extending out of the connecting part is formed in the adjusting block support, and one end, extending out of the adjusting block support, of the connecting part is movably connected with the adjusting piece, so that the adjustable sliding block assembly is compact in structure, and the space occupancy rate of the adjustable sliding block assembly is reduced.
(6) According to the invention, the detachable cover plate is arranged on the outer arm section of the telescopic arm support, when the adjustable sliding block needs to be replaced, the replacement can be realized by opening the detachable cover plate, the telescopic arm support does not need to be detached through hoisting equipment, and the maintenance efficiency is improved.
(7) According to the invention, the fixed sliding block assembly comprises a sliding block retainer and a fixed sliding block, a plurality of mounting grooves for placing the fixed sliding block are formed in the periphery of the sliding block retainer, and the fixed sliding block is limited by the mounting grooves and is positioned between the side wall of the inner arm section and the side wall of the outer arm section; when the fixed sliding blocks are replaced, the plurality of fixed sliding blocks can be integrally pulled out of the arm support through the sliding block retainer, and after the fixed sliding blocks are replaced, the plurality of fixed sliding blocks can be simultaneously pushed into gaps between the inner arm joint and the outer arm joint through the sliding block retainer to be installed, so that the disassembly and assembly time of the fixed sliding blocks is shortened, and the maintenance efficiency is improved.
(8) According to the telescopic arm support, the sealing ring is located between the flange plate and the sealing plate, and is arranged at the front end of the outer arm section, so that the loss of lubricating grease in the telescopic arm support can be reduced, and meanwhile, various external liquids and dust are brought back into the telescopic arm support when the inner arm section extends out and retracts, and parts in the telescopic arm support are corroded; in addition, the adjustable sliding block or the fixed sliding block can be prevented from being abraded when external stones and gravels enter the space between the inner arm section and the outer arm section.
(9) According to the invention, the fixed slider is provided with the fixed groove for installing the special-shaped nut, the special-shaped nut is clamped in the fixed groove because the outer peripheral surface of the special-shaped nut is a non-cylindrical surface, the special-shaped bolt is rotated when the special-shaped bolt is in threaded connection with the special-shaped nut, the special-shaped nut cannot rotate along with the special-shaped bolt due to the limiting effect of the fixed groove, the special-shaped bolt and the special-shaped nut can be fastened and connected, and the fixed slider and the outer arm section are fixedly connected.
(10) In the invention, oil grooves are respectively arranged on the adjustable sliding block and the fixed sliding block, the outer arm section is provided with the oil cup, lubricating grease can be injected between the sliding block and the side wall of the arm section, and the friction resistance of the telescopic arm frame during expansion is reduced.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural diagram of a telescopic boom in an embodiment of the present application;
FIG. 2 is an enlarged detail view of portion I in FIG. 1 of the present application;
FIG. 3 is an exploded view of an adjustable slide assembly at the trailing end of an outer arm joint in an embodiment of the present application;
FIG. 4 is an enlarged detail view of section II in FIG. 1 in the embodiment of the present application;
FIG. 5 is an exploded view of the outer arm section forward end fixed slide assembly in an embodiment of the present application;
FIG. 6 is a schematic structural diagram of the fixed slider shown in FIG. 5 according to an embodiment of the present application;
FIG. 7 is an axial view of a telescopic boom according to an embodiment of the present application;
the oil cup assembly comprises an adjuster 1, an adjuster 1.1, an adjusting part 1.2, an adjusting block 1.2.1, a connecting part 2, an adjustable sliding block 2.1, an oil groove I, an oil cup 3, a fixing seat 3.1, a limiting frame 3.2, an adjusting block support 4, an adjustable sliding block assembly 5, an inner arm joint 5.1, an oil cylinder partition plate 6, an outer arm joint 6.1, a detachable cover plate 6.2, an oil cup I, an oil cup assembly 6.3, an oil cup II, an oil cup 6.3.2, a special-shaped bolt 6.3.3, a special-shaped nut 7, a fixed sliding block assembly 7.1, a sliding block retainer 7.1.1, a flange plate 7.1.2, a mounting groove 7.2, a fixed sliding block 7.2.1, a fixed groove 7.2, an oil groove II, an oil groove 7.3, a sealing ring 7.4 and a sealing plate.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Example (b):
referring to fig. 1 to 7, an adjustable slide block assembly and a telescopic boom are provided in this embodiment, which are applied to adjustment and replacement of a slide block of a telescopic boom when the slide block is worn.
Referring to fig. 1 and fig. 7, in this embodiment, an adjustable slide block assembly 4 is disposed on the upper and lower sides of the tail end of the telescopic boom support, the telescopic boom support includes an inner boom section 5 and an outer boom section 6 which are connected in a sliding manner, and the adjustable slide block assembly 4 is located between the side wall of the inner boom section 5 of the telescopic boom support and the side wall of the outer boom section 6, i.e., the adjustable slide block assembly 4 is disposed on both the upper and lower sides of the inner boom section 5 and the outer boom section 6, so that the inner boom section 5 and the outer boom section 6 are subjected to uniform stress when sliding relatively to each other, and the motion is stable. The number of the adjustable slide block assemblies 4 can also be adjusted according to requirements, such as the upper side, the lower side, the left side and the right side of the tail end of the telescopic arm support are provided, and the like.
Referring to fig. 2, the adjustable slide block assembly 4 includes an adjuster 1, an adjustable slide block 2, and a fixing base 3; the adjuster 1 comprises an adjusting piece 1.1 and an adjusting block 1.2 which are movably connected, and is used for realizing the movement of the adjusting block 1.2 along the length direction of the adjusting piece 1.1; the adjusting block 1.2 and the adjustable slide block 2 are provided with sawtooth structures which are matched with each other along the moving direction of the adjusting piece 1.1; regulator 1 installs on fixing base 3, be equipped with the spacing frame 3.1 that is used for placing adjustable slider 2 on fixing base 3, make adjustable slider 2 move along the sawtooth direction of height of zigzag structure in accommodation process, when 2 tops of adjustable slider during owing to long-time friction attenuate, accessible regulating part 1.1 drives regulating block 1.2 and moves to 2 left sides, adjustable slider 2 is under spacing frame 3.1's effect, can't move at the horizontal direction, only can raise along vertical direction, thereby realize the clearance adjustment between the inside wall of adjustable slider 2 and outer arm festival 6.
Through a plurality of sawtooth inclined planes in the sawtooth structure, can realize adjustable slider 2's vertical altitude mixture control, the height-adjusting passes through the high definite of sawtooth, compares with ordinary voussoir adjustment mode, has the advantage that the higher altitude mixture control of accessible less regulation stroke realization. Therefore, the overall space occupancy rate of the adjustable slide block assembly 4 can be reduced, and the problem that the strength of the arm support is influenced due to the overlarge installation clearance of the adjustable slide block assembly 4 between the outer arm section 6 and the inner arm section 5 is avoided.
The adjusting part 1.1 can adopt a linear motion actuating mechanism, such as a small-sized hydraulic cylinder and the like, in the embodiment, the adjusting part 1.1 is an adjusting bolt in threaded connection with the fixing seat 3, the adjusting bolt is in threaded connection with the adjusting block 1.2, the position of the adjusting block 1.2 is changed by changing the threaded connection position of the adjusting bolt and the adjusting block 1.2, so that the height position of the adjustable sliding block 2 is adjusted, a complex control system is not required to be arranged to realize the action of the linear motion actuating mechanism, and the reliability is high.
One side that adjustable slider 2 was kept away from to regulating block 1.2 is equipped with connecting portion 1.2.1, be equipped with on the regulating block supports 3.2 and be used for stretching out connecting portion 1.2.1's spout, connecting portion 1.2.1 stretch out regulating block support 3.2's one end and regulating part 1.1 swing joint (threaded connection in this embodiment), are convenient for make adjustable slider subassembly 4's compact structure.
One side that adjustable slider 2 kept away from regulating block 1.2 is equipped with oil groove 2.1, is convenient for deposit lubricating grease, realizes the lubrication between adjustable slider 2 and the arm festival lateral wall, reduces adjustable slider 2 and the arm festival and takes place relative motion's resistance to reduce the wearing and tearing of adjustable slider 2 itself through the lubrication.
In the embodiment, the two fixing seats 3 are integrally arranged on the upper side and the lower side of the tail end of the inner arm section 5, and the limiting frames 3.1 are arranged on the upper side wall and the lower side wall of the inner arm section 5; the adjusting piece 1.1 is arranged on the oil cylinder partition plate 5.1 of the inner arm section 5, and one side of the adjustable sliding block 2, which is far away from the sawtooth-shaped structure, is in contact with the inner side wall of the outer arm section 6, as shown in fig. 2 and 3. The adjustable sliding blocks 2 are arranged between the upper contact surface and the lower contact surface of the inner arm section 5 and the outer arm section 6, so that the inner arm section 5 is stressed uniformly when sliding inside the outer arm section 6, and the movement is stable.
When the height of the adjustable sliding block 2 is adjusted, a wrench extends into the tail end of the outer arm section 6, and the adjusting piece 1.1 is rotated.
The side wall of the outer arm section 6 is provided with a detachable cover plate 6.1 and an oil cup I6.2; and a through hole for installing a first oil cup 6.2 is formed in the detachable cover plate 6.1. In the embodiment, a detachable cover plate 6.1 is arranged at the tail end of the outer arm section 6, and when the telescopic arm support is in a contracted state, the adjustable slide block 2 is positioned below the detachable cover plate 6.1; in the using process, lubricating grease can be injected into the oil groove I2.1 of the adjustable sliding block 2 through the oil cup I6.2; when the height of the adjustable slide block 2 has been adjusted to the extreme position (i.e. when the adjusting block 1.2 is in the extreme position on the left side in fig. 2), the detachable cover plate 6.1 is opened to replace the adjustable slide block 2.
Referring to fig. 1 and 7, the front end of the outer arm section 6 is detachably provided with a fixed slide block assembly 7, the fixed slide block assembly 7 at the front end of the outer arm section 6 is matched with the adjustable slide block assembly 4 at the tail end of the inner arm section 5, so that the inner arm section 5 is prevented from being in direct contact with the side wall of the outer arm section 6, the adjustable slide block assembly 4 and the fixed slide block assembly 7 are only worn when the telescopic arm frame stretches, and the structural strength of the telescopic arm frame cannot be adversely affected.
Referring to fig. 4 and 5, the fixed slide block assembly 7 comprises a slide block retainer 7.1 and a fixed slide block 7.2, the slide block retainer 7.1 is sleeved outside the inner arm section 5, and one end of the slide block retainer 7.1 is provided with a flange plate 7.1.1 used for being connected with the outer arm section 6, so that the slide block retainer 7.1 is prevented from moving along with the extension and retraction of the inner arm section 5; the slider holder 7.1 is equipped with a plurality of mounting grooves 7.1.2 that are used for placing solid fixed sliding block 7.2 all around, realizes limiting displacement to solid fixed sliding block 7.2 through mounting groove 7.1.2, makes solid fixed sliding block 7.2 be located between the lateral wall of inner arm festival 5 and the lateral wall of outer arm festival 6. When the fixed sliding blocks 7.2 are replaced, the fixed sliding blocks 7.2 can be pulled out of the arm support through the sliding block retainer 7.1, and after the fixed sliding blocks 7.2 are replaced, the fixed sliding blocks 7.2 can be pushed into the gap between the inner arm section 5 and the outer arm section 6 through the sliding block retainer 7.1 for installation.
The fixed sliding block assembly 7 further comprises a sealing ring 7.3 and a sealing plate 7.4; a plurality of mounting holes are correspondingly formed in the flange plate 7.1.1 and the seal plate 7.4 one by one and used for inserting connecting pieces to realize the connection of the fixed sliding block assemblies 7 and the outer arm sections 6; the sealing ring 7.3 is positioned between the flange plate 7.1.1 and the seal plate 7.4, the sealing ring 7.3 is arranged at the front end of the outer arm section 6, so that the loss of lubricating grease can be reduced, and meanwhile, various external liquids and dust are brought back to the inside of the telescopic arm frame when the inner arm section 5 extends out and retracts, and parts in the telescopic arm frame are corroded; in addition, the adjustable sliding block 2 or the fixed sliding block 7.2 can be prevented from being abraded by external stones and gravels entering between the inner arm section 5 and the outer arm section 6.
A plurality of oil cup assemblies 6.3 are arranged on the side wall of the front end of the outer arm section 6, each oil cup assembly 6.3 comprises an oil cup II 6.3.1, a special-shaped bolt 6.3.2 and a special-shaped nut 6.3.3 which are coaxially communicated, in order to realize the communication of the oil cup II 6.3.1, the special-shaped bolt 6.3.2 and the special-shaped nut 6.3.3 are of hollow structures, and the oil cup II 6.3.1, the special-shaped bolt 6.3.2 and the special-shaped nut 6.3.3 are all in threaded connection; the fixing slider 7.2 is provided with a fixing groove 7.2.1 for mounting the special-shaped nut 6.3.3, the outer peripheral surface of the special-shaped nut 6.3.3 is a non-cylindrical surface, when the special-shaped nut 6.3.3 is clamped in the fixing groove 7.2.1, the special-shaped bolt 6.3.2 is rotated when the special-shaped bolt 6.3.3 is in threaded connection with the special-shaped nut 6.3.3, the special-shaped nut 6.3.3 cannot rotate along with the special-shaped bolt 6.3.2 due to the limiting effect of the fixing groove 7.2.1, and the fastening connection between the special-shaped bolt 6.3.2 and the special-shaped nut 6.3.3 can be realized; so as to realize the fixed connection between the fixed sliding block 7.2 and the outer arm section 6.
The adjustable sliding block 2 and the fixed sliding block 7.2 are made of MC nylon materials, and can be heated and softened when the special-shaped nut 6.3.3 is arranged on the fixed sliding block 7.2, and then the special-shaped nut 6.3.3 is extruded into the fixed groove 7.2.1 of the fixed sliding block 7.2 through extrusion equipment, so that the special-shaped nut 6.3.3 is installed.
An oil groove II 7.2.2 is formed in one side, close to the inner arm section 5, of the fixed sliding block 7.2; the second oil groove 7.2.2 is communicated with the fixed groove 7.2.1, and lubricating grease can be sequentially injected into the special-shaped bolt 6.3.2, the special-shaped nut 6.3.3, the fixed groove 7.2.1 and the second oil groove 7.2.2 from the second oil cup 6.3.1, so that lubrication between the fixed sliding block 7.2 and the inner arm section 5 is realized.
The use method of the adjustable slide block assembly and the telescopic arm frame is as follows:
mounting of adjustable slide block assembly 4 and fixed slide block assembly 7
The fixing seats 3 of the two adjustable sliding block assemblies 4 are integrally arranged on the upper side and the lower side of the tail end of the inner arm section 5, the adjuster 1 is installed on the inner arm section 5 and is in threaded connection with the adjusting block 1.2 for 3-4 circles, the adjustable sliding block 2 is placed on the adjusting block 1.2, and the adjustable sliding block 2 and the adjusting block 1.2 can be fixed through a simple means (such as a fixing rope I);
sequentially sleeving a sliding block retainer 7.1, a sealing ring 7.3 and a sealing plate 7.4 for fixing the sliding block assembly 7 at the front end of the inner arm section 5;
the inner arm section 5 extends into the outer arm section 6, when the adjustable sliders 2 at the upper side and the lower side of the tail end of the inner arm section 5 enter between the inner arm section 5 and the outer arm section 6 and cannot fall off (usually, the length of the adjustable slider 2 entering the outer arm section 6 accounts for 1/4 of the total length of the adjustable slider 2), a first fixing rope outside the adjustable slider 2 is removed, when the inner arm section 5 extends into the outer arm section 6 by about half of the length, a slider holder 7.1, a sealing ring 7.3 and a sealing plate 7.4 are moved to the front end of the outer arm section 6, a plurality of fixing sliders 7.2 are placed into the slider holder 7.1, and special-shaped nuts 6.3.3 are arranged in fixing grooves 7.2.1 of the fixing sliders 7.2; the fixed sliding blocks 7.2 are simply fixed in the circumferential direction of the sliding block retainer 7.1 through the second fixed rope; the inner arm section 5 drives the sealing ring 7.3 to push the sliding block retainer 7.1 into the outer arm section 6, when all the fixed sliding blocks 7.2 are squeezed between the inner arm section 5 and the outer arm section 6 and cannot fall off (usually, the fixed sliding blocks 7.2 enter 1/4 with the length of the outer arm section 6 accounting for the total length of the fixed sliding blocks 7.2), the fixed rope II can be removed, and the sealing plate 7.4, the sealing ring 7.3, the flange plate 7.1.1 and the end part of the outer arm section 6 are fixedly connected through bolts; a special-shaped bolt 6.3.2 is arranged on the outer arm section 6, so that the special-shaped bolt 6.3.2 is in threaded connection with a special-shaped nut 6.3.3 in a fixed sliding block 7.2; installing a second oil cup 6.3.1 on the special-shaped bolt 6.3.2 to complete the installation of the fixed sliding block component 7;
before the tail end of the inner arm section 5 extends into the tail end of the outer arm section 6, a detachable cover plate 6.1 is covered, an oil cup I6.2 is installed on the detachable cover plate 6.1, then the tail end of the inner arm section 5 extends into the tail end of the outer arm section 6, the adjustable slide block 2 is moved to the detachable cover plate 6.1 of the outer arm section 6, and the installation of the adjustable slide block assembly 4 is completed;
and finally, lubricating grease is injected through the first oil cup 6.2 and the second oil cup 6.3.1, so that the sliding block and the side wall of the arm joint are lubricated.
(II) adjustment of the adjustable slide block component 4 in the using process
When the contact surface between the adjustable sliding block 2 in the adjustable sliding block component 4 and the outer arm section 6 is abraded, the tail end cover of the outer arm section 6 is opened, the adjusting piece 1.1 is screwed by stretching a wrench, the adjusting block 1.2 moves along the left side of the graph 2, the adjustable sliding block 2 is lifted, and therefore the gap adjustment between the inner side wall of the adjustable sliding block 2 and the inner side wall of the outer arm section 6 is achieved.
(III) part replacement of adjustable slide block assembly 4 and fixed slide block assembly 7
When the thickness of the adjustable sliding block 2 can not meet the use requirement even if adjusted by the adjuster 1, the detachable cover plate 6.1 is opened, the worn adjustable sliding block 2 is taken out, a new adjustable sliding block 2 is put in, the detachable cover plate 6.1 is covered, and the adjusting piece 1.1 of the adjuster 1 is adjusted to the initial position.
When the thickness of the fixed sliding block 7.2 in the fixed sliding block assembly 7 can not meet the use requirement, the special-shaped bolt 6.3.2 of the oil cup assembly 6.3 is unscrewed from the fixed sliding block 7.2, then the sealing plate 7.4, the sealing ring 7.3 and the flange plate 7.1.1 are disassembled, the sliding block retainer 7.1 is integrally pulled out by stretching out the inner arm section 5, the worn fixed sliding block 7.2 is replaced, and then the fixed sliding block assembly 7 is installed according to the first part.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An adjustable sliding block component is characterized by comprising an adjuster (1), an adjustable sliding block (2) and a fixed seat (3); the adjuster (1) comprises an adjusting piece (1.1) and an adjusting block (1.2) which are movably connected, and the adjusting block (1.2) is used for moving along the length direction of the adjusting piece (1.1); the adjusting block (1.2) and the adjustable sliding block (2) are provided with sawtooth structures which are matched with each other along the movement direction of the adjusting piece (1.1); the regulator (1) is installed on the fixing seat (3), and a limiting frame (3.1) for placing the adjustable sliding block (2) is arranged on the fixing seat (3), so that the adjustable sliding block (2) moves along the sawtooth height direction of the sawtooth structure in the regulating process.
2. Adjustable slide assembly according to claim 1, wherein the fixed seat (3) further comprises an adjustment block support (3.2), wherein the side of the adjustment block (1.2) remote from the adjustable slide (2) is in contact with the adjustment block support (3.2).
3. The adjustable slide assembly according to claim 2, wherein a connecting portion (1.2.1) is provided on a side of the adjusting block (1.2) away from the adjustable slide (2), a sliding slot for extending out of the connecting portion (1.2.1) is provided on the adjusting block support (3.2), and one end of the connecting portion (1.2.1) extending out of the adjusting block support (3.2) is movably connected with the adjusting member (1.1).
4. An adjustable slide assembly as claimed in any one of claims 1 to 3, wherein the side of the adjustable slide (2) remote from the adjustment block (1.2) is provided with a first oil groove (2.1).
5. A telescopic boom provided with an adjustable slide assembly (4) according to any of claims 1 to 4, characterized in that the telescopic boom comprises an inner boom section (5) and an outer boom section (6) slidably connected; the fixed seat (3) is integrally arranged at the tail end of the inner arm section (5), and the limiting frame (3.1) is arranged on the side wall of the inner arm section (5); one side of the adjustable sliding block (2) far away from the sawtooth-shaped structure is in contact with the inner side wall of the outer arm section (6).
6. The telescopic arm support according to claim 5, wherein a detachable cover plate (6.1) and a first oil cup (6.2) are arranged on the side wall of the outer arm section (6); and a through hole for installing the first oil cup (6.2) is formed in the detachable cover plate (6.1).
7. A telescopic arm support according to claim 5 or 6, characterized in that the front end of the outer arm section (6) is detachably provided with a fixed slide block assembly (7).
8. A telescopic boom support according to claim 7, characterized in that the fixed slide assembly (7) comprises a slide holder (7.1) and a fixed slide (7.2), one end of the slide holder (7.1) is provided with a flange plate (7.1.1) for connecting with the outer boom section (6); the periphery of the sliding block retainer (7.1) is provided with a plurality of mounting grooves (7.1.2) for placing the fixed sliding blocks (7.2), so that the fixed sliding blocks (7.2) are positioned between the side wall of the inner arm section (5) and the side wall of the outer arm section (6).
9. A telescopic boom according to claim 8, characterized in that the fixed slide assembly (7) further comprises a sealing ring (7.3) and a closing plate (7.4); a plurality of mounting holes are correspondingly formed in the flange plate (7.1.1) and the sealing plate (7.4) one by one and used for inserting connecting pieces to realize the connection of the fixed sliding block assembly (7) and the outer arm section (6); the sealing ring (7.3) is positioned between the flange plate (7.1.1) and the closing plate (7.4).
10. The telescopic boom support according to claim 9, wherein a plurality of oil cup assemblies (6.3) are arranged on the side wall of the front end of the outer boom section (6), and the oil cup assemblies (6.3) comprise two oil cups (6.3.1), a special-shaped bolt (6.3.2) and a special-shaped nut (6.3.3) which are coaxially communicated; a fixing groove (7.2.1) for installing the special-shaped nut (6.3.3) is arranged on the fixing sliding block (7.2);
one side of the fixed sliding block (7.2) close to the inner arm joint (5) is provided with a second oil groove (7.2.2); and the second oil groove (7.2.2) is communicated with the fixed groove (7.2.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210771734.4A CN114933252A (en) | 2022-06-30 | 2022-06-30 | Adjustable sliding block assembly and telescopic boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210771734.4A CN114933252A (en) | 2022-06-30 | 2022-06-30 | Adjustable sliding block assembly and telescopic boom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114933252A true CN114933252A (en) | 2022-08-23 |
Family
ID=82868132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210771734.4A Pending CN114933252A (en) | 2022-06-30 | 2022-06-30 | Adjustable sliding block assembly and telescopic boom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114933252A (en) |
-
2022
- 2022-06-30 CN CN202210771734.4A patent/CN114933252A/en active Pending
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