CN202390167U - Cantilever crane clearance adjusting device, cantilever crane and engineering machinery - Google Patents

Cantilever crane clearance adjusting device, cantilever crane and engineering machinery Download PDF

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Publication number
CN202390167U
CN202390167U CN2011205482572U CN201120548257U CN202390167U CN 202390167 U CN202390167 U CN 202390167U CN 2011205482572 U CN2011205482572 U CN 2011205482572U CN 201120548257 U CN201120548257 U CN 201120548257U CN 202390167 U CN202390167 U CN 202390167U
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CN
China
Prior art keywords
jib
slide block
double
arm tube
screw bolt
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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.)
Expired - Fee Related
Application number
CN2011205482572U
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Chinese (zh)
Inventor
张斌
佘玲娟
邓伟
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Zoomlion Heavy Industry Science and Technology Co Ltd
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Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zoomlion Heavy Industry Science and Technology Co Ltd filed Critical Zoomlion Heavy Industry Science and Technology Co Ltd
Priority to CN2011205482572U priority Critical patent/CN202390167U/en
Application granted granted Critical
Publication of CN202390167U publication Critical patent/CN202390167U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The arm support comprises a first arm barrel (1) and a second arm barrel (2) sleeved on the first arm barrel, the arm support gap adjusting device comprises a sliding block (3) arranged between the first arm barrel and the second arm barrel, the arm support gap adjusting device further comprises at least two adjusting sleeves (5) and studs (4) with the same number as the adjusting sleeves, the at least two adjusting sleeves are fixedly arranged on the second arm barrel in parallel, the axes of the adjusting sleeves are perpendicular to the end faces of the sliding block, grooves (12) are formed in the sliding block, internal threads matched with the external threads of the corresponding studs are formed in the adjusting sleeves, and the studs are screwed into the corresponding adjusting sleeves and extend into the grooves of the sliding block. Through above-mentioned cantilever crane clearance adjustment device, can adjust the clearance between slider and the arm section of thick bamboo and can conveniently change the slider.

Description

Jib slack adjuster, jib and construction machinery and equipment
Technical field
The utility model relates to engineering machinery field, particularly, and the jib and the construction machinery and equipment that relate to the jib slack adjuster and comprise this jib slack adjuster.
Background technology
Aerial platform is when work, and each saves arm and need stretch out successively; During end-of-job, each saves arm needs withdrawal successively.In said process, relative motion can take place between the arm tube of adjacent segments arm, for guaranteeing that its relative motion is smooth and easy and between adjacent arm tube, wearing and tearing, between two adjacent arm tubes, slide block is set usually.
Fig. 1 and Fig. 2 have shown the structural representation of existing jib slack adjuster.As depicted in figs. 1 and 2; Slide block 3 is fixedly mounted on the second arm tube of arranging around the first arm tube 12 through bolt 13 and nut 14; And between the first arm tube 1 and the second arm tube 2, wherein baffle plate 9 is fixed on the said slide block 3, and slide block 3 is through two bolts 13 and nut 14 fixed installations.The defective that above-mentioned jib slack adjuster exists is: 1) owing to slide block 3 is fixedly mounted on the second arm tube 2 through bolt 13 and nut 14; So when because assembly error and producing the gap between slide block 3 and the first arm tube 1 or because wearing and tearing and between slide block 3 and the first arm tube 1 during the generation gap; Can not compensate these gaps; And the existence in these gaps can cause the arm tube in telescopic process, to produce vibration, influences the reliability of jib and construction machinery and equipment.2) when cause owing to assembly error slide block 3 and the first arm tube 1 cooperate tension or since jib be out of shape cause slide block 3 and the first arm tube 1 cooperate tension the time, can not adjust slide block 3, thereby cause jib work not steady.3) after slide block 3 wearing and tearing, must the first arm tube 1 be removed and could change slide block 3, so the replacing of slide block 3 is relatively more difficult.
The utility model content
The purpose of the utility model provide a kind of can adjusting slider and the arm tube between gap and jib and the construction machinery and equipment that is convenient for changing the jib slack adjuster of slide block and comprises this jib slack adjuster.
To achieve these goals; The utility model provides a kind of jib slack adjuster; Said jib comprises the first arm tube and is set in the second arm tube on the said the first arm tube that said jib slack adjuster comprises the slide block that is arranged between said the first arm tube and the said second arm tube, wherein; Said jib slack adjuster also comprises at least two regulating sleeves and the double-screw bolt identical with the quantity of said regulating sleeve; Said at least two regulating sleeves are fixedly mounted on the said second arm tube in parallel to each other, and the axis of said regulating sleeve is vertical with the end face of said slide block, is provided with groove in the said slide block; Be provided with the negative thread that the outside thread with cooresponding double-screw bolt matees each other in the said regulating sleeve, said double-screw bolt screws in the cooresponding regulating sleeve and stretches in the groove of said slide block.
Preferably, the quantity of the groove of said slide block is identical with the quantity of said regulating sleeve, and said double-screw bolt stretches in the corresponding groove of said slide block.
Preferably, be provided with spacer between the sidewall of the groove of said slide block and the said double-screw bolt, this spacer captive joint with said slide block and with said double-screw bolt free-running fit, be formed with boss on the said double-screw bolt, this boss is against the end face of said spacer.
Preferably; This jib slack adjuster also comprises baffle plate; This baffle plate is provided with the circular hole identical with the quantity of said regulating sleeve; The end face of said slide block is provided with holding tank, and said baffle plate is contained in the said holding tank and with said slide block captives joint, and said spacer passes in the groove that said circular hole inserts said slide block and with said baffle plate captives joint.
Preferably, said slide block is an oblong.
Preferably, said double-screw bolt is provided with jam nut, and this jam nut is locked said double-screw bolt.
In addition, the utility model also provides a kind of jib, and wherein, this jib comprises the jib slack adjuster that the utility model provides.
Preferably, said jib slack adjuster is arranged on the head of the said the first arm tube and the second arm tube.
Preferably, said jib slack adjuster is a plurality of, and these a plurality of jib slack adjusters are symmetric arrangement on the said the first arm tube and the second arm tube.
In addition, the utility model also provides a kind of construction machinery and equipment, and wherein, this project machinery comprises the jib that the utility model provides.
The jib slack adjuster that provides according to the utility model; Can promote slide block through the rotation of double-screw bolt moves inward; Thereby when because assembly error and producing the gap between slide block and the first arm tube or because wearing and tearing and between slide block and the first arm tube during the generation gap; Can compensate these gaps, thereby avoid the arm tube in telescopic process, to produce vibration, guarantee the reliability of jib and construction machinery and equipment.In addition; When cause owing to assembly error slide block and the first arm tube cooperate tension or since jib be out of shape cause slide block and the first arm tube cooperate tension the time; Can adjust slide block through past inner rotary double-screw bolt, thus the stationarity of assurance jib work.Moreover, after slider wear, only need the double-screw bolt back-out just can be changed slide block, so the replacing of slide block is more convenient.
Other feature and advantage of the utility model will partly specify in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of specification sheets, is used to explain the utility model with the following specific embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is that the master of existing jib slack adjuster looks scheme drawing;
Fig. 2 is the schematic top plan view of existing jib slack adjuster;
Fig. 3 is that the master of the jib slack adjuster that provides of the utility model looks scheme drawing;
Fig. 4 is the schematic top plan view of the jib slack adjuster that provides of the utility model;
Fig. 5 is the part-structure decomposing schematic representation of the jib slack adjuster that provides of the utility model.
Description of reference numerals
1: the first arm tube; 2: the second arm tubes; 3: slide block; 4: double-screw bolt; 5: regulating sleeve; 6: jam nut; 7: spacer; 8: boss; 9: baffle plate; 10: circular hole; 11: holding tank; 12: groove; 13: bolt; 14: nut; 15: fastener hole.
The specific embodiment
Be elaborated below in conjunction with the specific embodiment of accompanying drawing to the utility model.Should be understood that the specific embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
Extremely shown in Figure 5 like Fig. 3; The utility model provides a kind of jib slack adjuster; Said jib comprises the first arm tube 1 and is set in the second arm tube 2 on the said the first arm tube 1 that said jib slack adjuster comprises the slide block 3 that is arranged between said the first arm tube 1 and the said second arm tube 2, wherein; Said jib slack adjuster also comprises at least two regulating sleeves 5 and the double-screw bolt 4 identical with the quantity of said regulating sleeve 5; Said at least two regulating sleeves 5 are fixedly mounted on the said second arm tube 2 in parallel to each other, and the axis of said regulating sleeve 5 is vertical with the end face of said slide block 3, are provided with groove 12 in the said slide block 3; Be provided with the negative thread that the outside thread with cooresponding double-screw bolt 4 matees each other in the said regulating sleeve 5, said double-screw bolt 4 screws in the cooresponding regulating sleeve 5 and stretches in the groove 12 of said slide block 3.
The jib slack adjuster that provides according to the utility model; Can promote slide block 3 through the rotation of double-screw bolt 4 moves inward; Thereby when because assembly error and producing the gap between slide block 3 and the first arm tube 1 or because wearing and tearing and between slide block 3 and the first arm tube 1 during the generation gap; Can compensate these gaps, thereby avoid the arm tube in telescopic process, to produce vibration, guarantee the reliability of jib and construction machinery and equipment.In addition; When cause owing to assembly error slide block 3 and the first arm tube 1 cooperate tension or since jib be out of shape cause slide block 3 and the first arm tube 1 cooperate tension the time; Can adjust slide block 3 through past inner rotary double-screw bolt 4, thus the stationarity of assurance jib work.Moreover, after slide block 3 wearing and tearing, only need double-screw bolt 4 back-outs just can be changed slide block 3, so the replacing of slide block 3 is more convenient.
Usually, the quantity of the groove 12 of said slide block 3 is identical with the quantity of said regulating sleeve 5, and said double-screw bolt 4 stretches in the corresponding groove 12 of said slide block 3.
Slide block 3 adopts the abrasion resistant nylon material to process usually; In order to improve the strained condition of slide block 3, improve the load-carrying capacity of slide block 3, preferably; Be provided with spacer 7 between the sidewall of the groove 12 of said slide block 3 and the said double-screw bolt 4; This spacer 7 captive joint with said slide block 3 and with said double-screw bolt 4 free-running fits, be formed with boss 8 on the said double-screw bolt 4, this boss 8 is against the end face of said spacer 7.Spacer 7 adopts metallic material to process usually, and spacer 7 can be captiveed joint with slide block 3 through for example welding or bonding mode.Thereby when double-screw bolt 4 rotated inward, double-screw bolt 4 can promote spacer 7 and move inward, moved inward thereby drive slide block 3, and the gap between slide block 3 and the first arm tube 1 is compensated; When double-screw bolt 4 during toward inner rotary, spacer 7 moves with slide block 3 outward, avoid slide block 3 cooperate with the first arm tube 1 tension.
Preferably; This jib slack adjuster also comprises baffle plate 9; This baffle plate 9 is provided with the circular hole 10 identical with the quantity of said regulating sleeve 5; The end face of said slide block 3 is provided with holding tank 11, and said baffle plate 9 is contained in the said holding tank 11 and with said slide block 3 captives joint, and said spacer 7 passes in the groove 12 that said circular hole 10 inserts said slide block 3 and with said baffle plate 9 captives joint.Like this, can come dispersive stress, avoid stress too concentrated through baffle plate 9.Baffle plate 9 adopts metallic material to process usually.Said baffle plate 9 can take various suitable modes to captive joint with slide block 3, for example welding or bonding mode.Spacer 7 can be captiveed joint with baffle plate 9 through the mode of for example welding.
Said slide block 3 can be various suitable shapes, for example oblong.
Just double-screw bolt 4 is locked for the rear that puts in place in double-screw bolt 4 rotations, it is loosening to avoid double-screw bolt 4 to take place, and preferably, said double-screw bolt 4 is provided with jam nut 6, and this jam nut 6 is with said double-screw bolt 4 lockings.Particularly, after double-screw bolt 4 rotations put in place, on double-screw bolt 4, jam nut 6 is tightened, made it against regulating sleeve 5.
Regulating sleeve 5 can take various suitable modes to be fixedly mounted on the second arm tube 2, for example the mode of welding.
The end of double-screw bolt 4 is provided with fastener hole 15 usually, to utilize instrument easily double-screw bolt 4 is screwed in or screws out.It is circular that the groove 12 that is provided with in the slide block 3 is generally, to mate with double-screw bolt 4.
The quantity of regulating sleeve 5 and double-screw bolt 4 is selected according to concrete needs, and for example, regulating sleeve 5 can be two with double-screw bolt 4.
The first arm tube 1 of said jib and the structure of the second arm tube 2 are conventionally known to one of skill in the art, repeat no more at this.Need to prove that the arm tube of jib can be for a plurality of, and are not limited to the first arm tube 1 and the second arm tube 2.
In addition, the utility model also provides a kind of jib, and this jib comprises the jib slack adjuster that the utility model provides.
Said jib slack adjuster can be arranged on each position of arm tube as required, and for fear of the excessive rigid displacement of jib head, preferably, said jib slack adjuster is arranged on the head of the said the first arm tube 1 and the second arm tube 2.
For can be reposefully to the fore and aft motion channeling conduct of the first arm tube 1, preferably, said jib slack adjuster be a plurality of, and these a plurality of jib slack adjusters are symmetric arrangement on the said the first arm tube 1 and the second arm tube 2.
In addition, the utility model also provides a kind of construction machinery and equipment, and wherein, this project machinery comprises the jib that the utility model provides.Said construction machinery and equipment can need to use the machinery of jib for elevating fire truck, aerial platform etc.
The jib slack adjuster that the utility model provides has following advantage:
1) the jib slack adjuster that provides according to the utility model; Can promote slide block 3 through the rotation of double-screw bolt 4 moves inward; Thereby when because assembly error and producing the gap between slide block 3 and the first arm tube 1 or because wearing and tearing and between slide block 3 and the first arm tube 1 during the generation gap; Can compensate these gaps, thereby avoid the arm tube in telescopic process, to produce vibration, guarantee the reliability of jib and construction machinery and equipment.
2) when cause owing to assembly error slide block 3 and the first arm tube 1 cooperate tension or since jib be out of shape cause slide block 3 and the first arm tube 1 cooperate tension the time; Can adjust slide block 3 through past inner rotary double-screw bolt 4, thus the stationarity of assurance jib work.
3) after slide block 3 wearing and tearing, only need double-screw bolt 4 back-outs just can be changed slide block 3, so the replacing of slide block 3 is more convenient.
4) can be through jam nut 6 easily with double-screw bolt 4 lockings, it is loosening to avoid double-screw bolt 4 to take place.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned embodiment; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model, these simple variant all belong to the protection domain of the utility model.
Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up through any suitable manner.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between the various embodiment of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.

Claims (10)

1. jib slack adjuster; Said jib comprises the first arm tube (1) and is set in the second arm tube (2) on the said the first arm tube (1); Said jib slack adjuster comprises the slide block (3) that is arranged between said the first arm tube (1) and the said second arm tube (2); It is characterized in that; Said jib slack adjuster also comprises at least two regulating sleeves (5) and the double-screw bolt (4) identical with the quantity of said regulating sleeve (5); Said at least two regulating sleeves (5) are fixedly mounted on the said second arm tube (2) in parallel to each other, and the axis of said regulating sleeve (5) is vertical with the end face of said slide block (3), is provided with groove (12) in the said slide block (3); Be provided with the negative thread that the outside thread with cooresponding double-screw bolt (4) matees each other in the said regulating sleeve (5), said double-screw bolt (4) screws in the cooresponding regulating sleeve (5) and stretches in the groove (12) of said slide block (3).
2. jib slack adjuster according to claim 1 is characterized in that, the quantity of the groove (12) of said slide block (3) is identical with the quantity of said regulating sleeve (5), and said double-screw bolt (4) stretches in the corresponding groove (12) of said slide block (3).
3. jib slack adjuster according to claim 2; It is characterized in that; Be provided with spacer (7) between the sidewall of the groove (12) of said slide block (3) and the said double-screw bolt (4); This spacer (7) captive joint with said slide block (3) and with said double-screw bolt (4) free-running fit, be formed with boss (8) on the said double-screw bolt (4), this boss (8) is against the end face of said spacer (7).
4. jib slack adjuster according to claim 3; It is characterized in that; This jib slack adjuster also comprises baffle plate (9); This baffle plate (9) is provided with the circular hole (10) identical with the quantity of said regulating sleeve (5); The end face of said slide block (3) is provided with holding tank (11), and said baffle plate (9) is contained in the said holding tank (11) and with said slide block (3) captives joint, and said spacer (7) passes in the groove (12) that said circular hole (10) inserts said slide block (3) and with said baffle plate (9) captives joint.
5. according to any described jib slack adjuster in the claim 1 to 4, it is characterized in that said slide block (3) is an oblong.
6. according to any described jib slack adjuster in the claim 1 to 4, it is characterized in that said double-screw bolt (4) is provided with jam nut (6), this jam nut (6) is locked said double-screw bolt (4).
7. a jib is characterized in that, this jib comprises according to any described jib slack adjuster in the claim 1 to 6.
8. jib according to claim 7 is characterized in that, said jib slack adjuster is arranged on the head of the said the first arm tube (1) and the second arm tube (2).
9. jib according to claim 7 is characterized in that, said jib slack adjuster is a plurality of, and these a plurality of jib slack adjusters are gone up symmetric arrangement at the said the first arm tube (1) and the second arm tube (2).
10. a construction machinery and equipment is characterized in that, this project machinery comprises according to any described jib in the claim 7 to 9.
CN2011205482572U 2011-12-23 2011-12-23 Cantilever crane clearance adjusting device, cantilever crane and engineering machinery Expired - Fee Related CN202390167U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205482572U CN202390167U (en) 2011-12-23 2011-12-23 Cantilever crane clearance adjusting device, cantilever crane and engineering machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205482572U CN202390167U (en) 2011-12-23 2011-12-23 Cantilever crane clearance adjusting device, cantilever crane and engineering machinery

Publications (1)

Publication Number Publication Date
CN202390167U true CN202390167U (en) 2012-08-22

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CN2011205482572U Expired - Fee Related CN202390167U (en) 2011-12-23 2011-12-23 Cantilever crane clearance adjusting device, cantilever crane and engineering machinery

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CN (1) CN202390167U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104872102A (en) * 2015-06-12 2015-09-02 武汉理工大学 Spraying machine
CN105836681A (en) * 2016-05-17 2016-08-10 安徽铜冠机械股份有限公司 Telescopic arm of arm-type lifting platform car

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104872102A (en) * 2015-06-12 2015-09-02 武汉理工大学 Spraying machine
CN105836681A (en) * 2016-05-17 2016-08-10 安徽铜冠机械股份有限公司 Telescopic arm of arm-type lifting platform car

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120822

Termination date: 20151223

EXPY Termination of patent right or utility model