CN212269285U - Telescopic arm sliding guide assembly of crane - Google Patents
Telescopic arm sliding guide assembly of crane Download PDFInfo
- Publication number
- CN212269285U CN212269285U CN202021900811.4U CN202021900811U CN212269285U CN 212269285 U CN212269285 U CN 212269285U CN 202021900811 U CN202021900811 U CN 202021900811U CN 212269285 U CN212269285 U CN 212269285U
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- guide
- telescopic arm
- sliding block
- clamping seat
- slider
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Abstract
The utility model discloses a flexible arm sliding guide subassembly of hoist, including being fixed in the slider direction subassembly on every section flexible arm barrel of hoist, and be fixed in the direction cassette on every section flexible arm head bottom, flexible arm contracts the state entirely, be located on the outer wall of the flexible arm barrel of inner circle, be located on the inner wall of the flexible arm barrel of outermost circle, and all be provided with a set of slider direction subassembly on the inner wall of other flexible arm barrels on outer, every slider direction subassembly on its outer wall of the flexible arm barrel of inner circle section all stretches into between two adjacent slider direction subassemblies on its inner wall of the flexible arm barrel of outer lane section, and the direction boss on the flexible arm direction cassette of outer lane section stretches into in the guiding hole on the flexible arm direction cassette of inner circle section. The utility model discloses can bear the pressure of flexible arm barrel, when flexible arm is flexible, have the flexible purpose of direction, guarantee that flexible arm is flexible smooth and easy.
Description
Technical Field
The utility model relates to a flexible arm technical field of hoist specifically is a flexible arm of hoist slip direction subassembly.
Background
The existing crane is composed of sliding blocks, pressing plates and bolts among all sections of telescopic arms, a tongue plate, an adjusting bolt support, an adjusting bolt and the like are adopted below arm heads of all sections of telescopic arms, the principle is that the sliding blocks are fixed on the inner wall of a cylinder body of each section of telescopic arm and are distributed in sequence along the circumference of the inner wall of the cylinder body of the telescopic arm as required, one end of each sliding block protrudes out of the cylinder body of the telescopic arm and is hung on the arm head plate, then the pressing plates are used for pressing the sliding blocks, and the pressing plates are connected with the arm head plates through the bolts, so that the purpose of fixing the sliding blocks is. The tongue board below the arm head is welded below the telescopic arm head, and the adjusting bolt supports are welded on two sides of the tongue board. When the adjusting bolt support is used, the tongue plate stays between the two adjusting bolt supports of the front telescopic arm, the adjusting bolts and nuts are installed on the two adjusting bolt supports, and the gap between the tongue plate and the two adjusting bolt supports of the front telescopic arm is controlled by adjusting the extending distance of the adjusting bolts.
However, the above structure has disadvantages: 1. the types of the sliding blocks are more, and the requirement on the arrangement sequence is high; 2. the sliding block has no guiding function, and when the telescopic arms retract, certain gap errors can be caused among all the telescopic arms, so that the lifting performance is influenced; 3. the barrel clearance error after the telescopic arm of the crane contracts the arm easily causes the bending of the adjusting bolt, and is not beneficial to the long-time use of the adjusting bolt.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a flexible arm sliding guide subassembly of hoist is provided with slider direction subassembly and direction cassette, has higher intensity, can bear the pressure of flexible arm barrel, when flexible arm is flexible, has the flexible purpose of direction, guarantees that flexible arm is flexible smooth and easy.
The technical scheme of the utility model is that:
a sliding guide assembly for telescopic arms of a crane comprises a slider guide assembly fixed on each telescopic arm cylinder of the crane and a guide clamping seat fixed at the bottom end of the arm head plate of each telescopic arm, wherein under the fully contracted state of a plurality of telescopic arms, a group of slider guide assemblies are arranged on the outer wall of the telescopic arm cylinder at the innermost circle, the inner wall of the telescopic arm cylinder at the outermost circle and the outer wall of the inner walls of other telescopic arm cylinders, and each group of slider guide assemblies is adjacent to the position of the corresponding telescopic arm head; each group of sliding block guide assemblies comprise a plurality of sliding block guide assemblies, each sliding block guide assembly is of a long strip-shaped structure, the axis of each sliding block guide assembly is parallel to the axis of the corresponding telescopic arm cylinder, the distance from the front ends of the sliding block guide assemblies in each group of sliding block guide assemblies to the arm head of the corresponding telescopic arm is equal, and the distance between every two adjacent sliding block guide assemblies in each group of sliding block guide assemblies is equal to the width of the sliding block guide assembly; the top of the guide clamping seat is fixedly connected to the bottom end of the arm head plate of the corresponding section of telescopic arm, a guide boss and a guide hole are arranged on the bottom of the guide clamping seat, the guide boss protrudes towards the extending arm direction of the telescopic arm, and the guide hole penetrates through the guide clamping seat and the guide boss along the axial direction of the telescopic arm; when the cylinder body of one section of telescopic arm is fully contracted to the inner ring of the other section of telescopic arm cylinder body, each slide block guide assembly on the outer wall of the inner ring section of telescopic arm cylinder body extends into a position between two adjacent slide block guide assemblies on the inner wall of the outer ring section of telescopic arm cylinder body, and the guide boss on the outer ring section of telescopic arm guide clamping seat extends into the guide hole on the inner ring section of telescopic arm guide clamping seat.
Each sliding block guide component comprises a sliding block support fixed on the inner wall or the outer wall of the telescopic arm cylinder, a front sliding block connected with the top end of the sliding block support, two side sliding blocks respectively connected with two opposite long side surfaces of the sliding block support, and a locking plate, one end of the front sliding block is provided with a clamping block extending downwards, the locking plate is positioned at one end of the sliding block support and is fixedly connected with the sliding block support, the fixture block of the front slider is clamped between the locking plate and the slider support, two long side surfaces of the slider support are both provided with upward step surfaces, one end part of each side slider, facing the inner side surface of the slider support and adjacent to the locking plate, is provided with a limiting lug, the limiting lug is clamped between the locking plate and the slider support, the top end of the limiting lug is contacted with the front slider, and the two side sliders are respectively clamped between the corresponding step surfaces and the front slider; and the sliding block support, the front sliding block and the two side sliding blocks are provided with lubricating channels which are communicated with each other.
And a group of sliding block guide assemblies on each section of telescopic arm cylinder body are fixed on the arc-shaped inner wall area or the arc-shaped outer wall area at the bottom of the corresponding telescopic arm cylinder body.
The height of the guide clamping seat of the multiple sections of telescopic arms is gradually reduced from the telescopic arm of the inner ring to the telescopic arm of the outer ring, so that when two adjacent sections of telescopic arms are fully contracted, the guide boss on the guide clamping seat of the telescopic arm of the outer ring stretches into the guide hole on the guide clamping seat of the telescopic arm of the inner ring.
The guide boss on the guide clamping seat is a square conical guide boss, and the cross-sectional area of the inner end of the square conical guide boss connected to the guide clamping seat is larger than that of the outer end of the square conical guide boss; the guide hole on the guide clamping seat is a square conical guide hole which is matched and connected with the conical guide boss of the guide clamping seat on the adjacent telescopic arm.
The utility model has the advantages that:
(1) the outer wall of the traditional telescopic arm cylinder body is in direct contact with a sliding block, the friction force is large, the damage to the sliding block is large, the telescopic arm cylinder body and the adjacent telescopic arm cylinder body are not in contact, the sliding block guide assembly and the sliding block guide assembly are used for contact guiding, the contact area between the sliding block guide assembly and the sliding block guide assembly on the two adjacent telescopic arm cylinder bodies, and between the telescopic arm cylinder body and the sliding block guide assembly on the adjacent telescopic arm cylinder body is small, the friction force is small, the telescopic arm is ensured to be stretched smoothly, and meanwhile, the sliding block guide assembly is high in strength and can bear the pressure of the telescopic arm cylinder body;
(2) the sliding blocks on the existing telescopic arm cylinder are sequentially distributed along the circumference of the inner wall of the telescopic arm cylinder, and the telescopic arms easily cause the width of an annular gap between two adjacent telescopic arms to be inconsistent in the arm-retracting movement process, so that the sliding blocks are easily abraded unevenly, and the service life of the sliding blocks is shortened; according to the telescopic boom, the sliding block guide assemblies on the telescopic booms of two adjacent sections of telescopic booms pass through in a staggered mode, so that the gap error caused by the telescopic boom can be corrected, the telescopic boom cylinder body is prevented from being damaged by the gap error, and meanwhile, in the full-stretching process, the high-strength sliding block guide assemblies can support the telescopic boom cylinder body of the inner ring;
(3) the utility model discloses all be fixed with the direction cassette on every section of flexible arm, when flexible arm contracts completely, the direction cassette on each section of flexible arm is established ties and is pegged graft the cooperation, can improve intensity, and direction boss and guiding hole are the toper structure simultaneously, have certain guide effect;
(4) the sliding block guide assembly is provided with a lubricating channel, so that lubricating oil can be rapidly added, and the friction between the sliding block guide assemblies is reduced;
(5) the auxiliary arm is arranged in the telescopic arm barrel, the guide clamping seat is arranged in the auxiliary arm barrel, and the auxiliary arm is arranged in the telescopic arm barrel.
Drawings
Fig. 1 is a schematic structural view of the sliding guide assembly on each section of the telescopic boom of the present invention.
Fig. 2 is a schematic view of the fitting structure of the slider guide assembly in the fully retracted state of the present invention.
Fig. 3 is an exploded view of the slider guide assembly of the present invention.
Fig. 4 is a schematic structural diagram of the guiding clamping seat of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a sliding guide assembly for telescopic arms of a crane comprises a slider guide assembly 2 fixed on each telescopic arm cylinder 1 of the crane and a guide clamping seat 4 fixed on the bottom end of each telescopic arm head plate 3, wherein in a fully contracted state of a plurality of telescopic arms, a group of slider guide assemblies 2 are arranged on the outer wall of the telescopic arm cylinder 1 at the innermost circle, the inner wall of the telescopic arm cylinder 1 at the outermost circle and the outer walls of other telescopic arm cylinders 1, and each group of slider guide assemblies 2 is adjacent to the position corresponding to one telescopic arm head;
each group of sliding block guiding assemblies 2 comprises a plurality of sliding block guiding assemblies, one group of sliding block guiding assemblies 2 on each section of telescopic arm cylinder body 1 is fixed on an arc-shaped inner wall area or an arc-shaped outer wall area of the bottom of the corresponding telescopic arm cylinder body 1, each sliding block guiding assembly 2 is of a long strip-shaped structure, the axis of each sliding block guiding assembly 2 is parallel to the axis of the corresponding section of telescopic arm cylinder body 1, the distance from the front end of each sliding block guiding assembly 2 to the arm head of the corresponding section of telescopic arm is equal, and the distance between two adjacent sliding block guiding assemblies 2 in each group of sliding block guiding assemblies is equal to the width of the sliding block guiding assembly 2;
the top of the guide clamping seat 4 is fixedly connected to the bottom end of the corresponding telescopic arm head plate 3, a guide boss 41 and a guide hole 42 are arranged on the bottom of the guide clamping seat 4, the guide boss 41 protrudes towards the extending arm direction of the telescopic arm, the guide hole 42 penetrates through the guide clamping seat 4 and the guide boss 41 along the axial direction of the telescopic arm, the height of the guide clamping seat 4 of the telescopic arms of the multiple sections is gradually reduced from the telescopic arm of the inner ring to the telescopic arm of the outer ring, so that when two adjacent sections of telescopic arms are fully contracted, the guide boss 41 on the guide clamping seat 4 of the telescopic arm of the outer ring extends into the guide hole 42 on the guide clamping seat 4 of the telescopic arm of the inner ring;
when one section of telescopic arm cylinder body 1 is fully contracted to the inner ring of the other section of telescopic arm cylinder body 1, each slide block guide assembly 2 on the outer wall of the inner section of telescopic arm cylinder body 1 extends into a position between two adjacent slide block guide assemblies 2 on the inner wall of the outer section of telescopic arm cylinder body 1, and the guide boss 41 on the outer section of telescopic arm guide clamping seat 4 extends into the guide hole 42 on the inner section of telescopic arm guide clamping seat 4.
Wherein each slide block guiding component 2 comprises a slide block support 21 fixed on the inner wall or the outer wall of the telescopic arm cylinder 1 and a front slide block 22 connected with the top end of the slide block support 21, the two side sliders 23 and the locking plate 24 are respectively connected to two opposite long side surfaces of the slider support 21, one end of the front slider 22 is provided with a clamping block 25 extending downwards, the locking plate 24 is positioned at one end of the slider support 21 and is fixedly connected with the slider support 21, the clamping block 25 of the front slider is clamped between the locking plate 24 and the slider support 21, two long side surfaces of the slider support are both provided with an upward step surface 26, one end part of each side slider 23, facing the inner side surface of the slider support and adjacent to the locking plate, is provided with a limiting bump 27, the limiting bump 27 is clamped between the locking plate 24 and the slider support 21, the top end of the limiting bump 27 is contacted with the front slider 22, and the two side sliders 23 are respectively clamped between the corresponding step surface 26 and the front slider 22; the slide block support 21, the front slide block 22 and the two side slide blocks 23 are all provided with lubricating channels 28, and the lubricating channels 28 are communicated with each other.
The guide boss 41 on the guide clamping seat 4 is a square conical guide boss, and the cross-sectional area of the inner end of the square conical guide boss connected to the guide clamping seat is larger than that of the outer end of the square conical guide boss; the guide hole 42 on the guide clamping seat 4 is a square conical guide hole which is matched and connected with the conical guide boss of the guide clamping seat 4 on the adjacent telescopic arm.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a flexible arm of hoist slip direction subassembly which characterized in that: the telescopic arm head plate comprises a slider guide assembly fixed on each section of telescopic arm cylinder of the crane and a guide clamping seat fixed at the bottom end of the arm head plate of each section of telescopic arm, wherein a group of slider guide assemblies are arranged on the outer wall of the innermost telescopic arm cylinder, the inner wall of the outermost telescopic arm cylinder and the outer walls of other telescopic arm cylinders in a fully contracted state of the plurality of sections of telescopic arms, and each group of slider guide assemblies is adjacent to the position of the corresponding section of telescopic arm head; each group of sliding block guide assemblies comprise a plurality of sliding block guide assemblies, each sliding block guide assembly is of a long strip-shaped structure, the axis of each sliding block guide assembly is parallel to the axis of the corresponding telescopic arm cylinder, the distance from the front ends of the sliding block guide assemblies in each group of sliding block guide assemblies to the arm head of the corresponding telescopic arm is equal, and the distance between every two adjacent sliding block guide assemblies in each group of sliding block guide assemblies is equal to the width of the sliding block guide assembly; the top of the guide clamping seat is fixedly connected to the bottom end of the arm head plate of the corresponding section of telescopic arm, a guide boss and a guide hole are arranged on the bottom of the guide clamping seat, the guide boss protrudes towards the extending arm direction of the telescopic arm, and the guide hole penetrates through the guide clamping seat and the guide boss along the axial direction of the telescopic arm; when the cylinder body of one section of telescopic arm is fully contracted to the inner ring of the other section of telescopic arm cylinder body, each slide block guide assembly on the outer wall of the inner ring section of telescopic arm cylinder body extends into a position between two adjacent slide block guide assemblies on the inner wall of the outer ring section of telescopic arm cylinder body, and the guide boss on the outer ring section of telescopic arm guide clamping seat extends into the guide hole on the inner ring section of telescopic arm guide clamping seat.
2. A crane jib sliding guide assembly as claimed in claim 1 wherein: each sliding block guide component comprises a sliding block support fixed on the inner wall or the outer wall of the telescopic arm cylinder, a front sliding block connected with the top end of the sliding block support, two side sliding blocks respectively connected with two opposite long side surfaces of the sliding block support, and a locking plate, one end of the front sliding block is provided with a clamping block extending downwards, the locking plate is positioned at one end of the sliding block support and is fixedly connected with the sliding block support, the fixture block of the front slider is clamped between the locking plate and the slider support, two long side surfaces of the slider support are both provided with upward step surfaces, one end part of each side slider, facing the inner side surface of the slider support and adjacent to the locking plate, is provided with a limiting lug, the limiting lug is clamped between the locking plate and the slider support, the top end of the limiting lug is contacted with the front slider, and the two side sliders are respectively clamped between the corresponding step surfaces and the front slider; and the sliding block support, the front sliding block and the two side sliding blocks are provided with lubricating channels which are communicated with each other.
3. A crane jib sliding guide assembly as claimed in claim 1 wherein: and a group of sliding block guide assemblies on each section of telescopic arm cylinder body are fixed on the arc-shaped inner wall area or the arc-shaped outer wall area at the bottom of the corresponding telescopic arm cylinder body.
4. A crane jib sliding guide assembly as claimed in claim 1 wherein: the height of the guide clamping seat of the multiple sections of telescopic arms is gradually reduced from the telescopic arm of the inner ring to the telescopic arm of the outer ring, so that when two adjacent sections of telescopic arms are fully contracted, the guide boss on the guide clamping seat of the telescopic arm of the outer ring stretches into the guide hole on the guide clamping seat of the telescopic arm of the inner ring.
5. A crane jib sliding guide assembly as claimed in claim 1 wherein: the guide boss on the guide clamping seat is a square conical guide boss, and the cross-sectional area of the inner end of the square conical guide boss connected to the guide clamping seat is larger than that of the outer end of the square conical guide boss; the guide hole on the guide clamping seat is a square conical guide hole which is matched and connected with the conical guide boss of the guide clamping seat on the adjacent telescopic arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021900811.4U CN212269285U (en) | 2020-09-03 | 2020-09-03 | Telescopic arm sliding guide assembly of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021900811.4U CN212269285U (en) | 2020-09-03 | 2020-09-03 | Telescopic arm sliding guide assembly of crane |
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| CN212269285U true CN212269285U (en) | 2021-01-01 |
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| CN202021900811.4U Active CN212269285U (en) | 2020-09-03 | 2020-09-03 | Telescopic arm sliding guide assembly of crane |
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| CN (1) | CN212269285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960301A (en) * | 2020-09-03 | 2020-11-20 | 安徽柳工起重机有限公司 | Telescopic arm sliding guide assembly of crane |
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2020
- 2020-09-03 CN CN202021900811.4U patent/CN212269285U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960301A (en) * | 2020-09-03 | 2020-11-20 | 安徽柳工起重机有限公司 | Telescopic arm sliding guide assembly of crane |
| CN111960301B (en) * | 2020-09-03 | 2024-06-25 | 安徽柳工起重机有限公司 | Crane telescopic boom sliding guide assembly |
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