CN202594667U - Tail telescopic arm for lifting arm of automobile crane - Google Patents
Tail telescopic arm for lifting arm of automobile crane Download PDFInfo
- Publication number
- CN202594667U CN202594667U CN 201220154691 CN201220154691U CN202594667U CN 202594667 U CN202594667 U CN 202594667U CN 201220154691 CN201220154691 CN 201220154691 CN 201220154691 U CN201220154691 U CN 201220154691U CN 202594667 U CN202594667 U CN 202594667U
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- China
- Prior art keywords
- arm
- tailstock
- telescopic boom
- framework
- orienting lug
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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
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Abstract
The utility model relates to a tail telescopic arm for a lifting arm of an automobile crane. The tail telescopic arm comprises a tailstock (1), an arm sleeve (2) connected with the tailstock (1), and a guide block (3) which is arranged on the arm sleeve (2) and used for guiding a trolley roller, wherein the tailstock (1) and the arm sleeve (2) are split; the tailstock (1) is inverted U-shaped; and a sliding block in contact with an inner arm of an upper-section telescopic arm is arranged on the outer side of the tailstock (1). The motion stability of the telescopic arms is improved.
Description
One, technical field
The utility model relates to a kind of afterbody telescopic boom of lifting arm, especially a kind of afterbody telescopic boom that is applicable to the lifting arm that is used on the car hosit.
Two, background technology
Car hosit is widely used in engineering construction and daily life as handling machinery, so car hosit is one a construction machinery and equipment; Lifting arm is the vitals of car hosit; In the lifting arm of existing car hosit, adopt the box arm configuration at existing car hosit jib, for guaranteeing the normal flexible and rationally stressed of jib more; The jib afterbody all is designed with back top shoe and side slide; The most inboard jib that the arm head sheave particularly is housed is because oad is minimum, and the arrangement space of slide block is limited, and particularly the semi-girder of the moulding weld seam of the steel rope of afterbody telescopic jib, jib assembly, afterbody rope permanent seat etc. is all in this layout.Is five joint arm afterbodys and arm tubes one integral body, the first slide block fixed frame of on the side at jib rear portion, burn-oning, then with slide block through being bolted in the fixed frame, fixed frame plays and is the spacing effect of slide block.But this structure need be welded four slider frames separately and carried out slide block and fix on afterbody riser behind the jib, because the side slide height is higher, slider frame thickness is less; In the hoisting arm expansion process; Because side skin friction is bigger in side slide and the four joint arms, often causes the side slide metaboly, and the adjustment of inconvenient arm backlash; Simultaneously because five joint arm afterbodys and arm tube are an integral body; Making is made troubles to following process, in the arm tube, does not make the guide piece of moving of car simultaneously, makes moving of car not steady.
Three, summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of the utility model provides a kind of afterbody telescopic boom that is used for the car hosit lifting arm, has therefore improved the stationarity of moving between the telescopic boom.
For achieving the above object; The technical scheme that the utility model is taked is: the arm tube that include tailstock, connects with tailstock, be located at the orienting lug that is used for trolley idler wheels guiding on the arm tube; Tailstock and arm tube are set to split type; Tailstock is set to inverted U-shaped, the lateral surface of tailstock be provided with on the slide block that connects of the inner arm contact of joint telescopic boom.
Be assembled together this afterbody telescopic boom and last joint telescopic boom; Owing to designed tailstock, arm tube and orienting lug; Through split production and slide block, improved the precision of afterbody telescopic boom and last joint telescopic boom assembling, reduced the gap between the assembling of afterbody telescopic boom and last joint telescopic boom; Make moving of car also steady, therefore improved the stationarity of moving between the telescopic boom.
The utility model has designed, and tailstock is arranged on the rear end of arm tube and is set to connect with the arm tube through welding manner.
The utility model has designed, and the two ends of orienting lug are set to the inclined-plane respectively, and orienting lug is arranged in the arm tube and is set to and connects with the trolley idler wheels contact, the height h2 of orienting lug be set to trolley idler wheels on depth of groove h1 corresponding.
The utility model has designed; Tailstock is set to include framework, fixed block, side slide, top shoe and pad, and framework is set to inverted U-shaped, and the sidewall of framework is provided with cavity; Be provided with at the circular arc position, both sides of the crossbeam of framework and put groove; In the cavity of the sidewall of framework, be provided with fixed block, side slide is set to through bolt and fixed block, in the groove of the circular arc position of framework, is provided with top shoe; Lower surface at side slide and top shoe is provided with pad, and side slide and top shoe are set to connect with the inner arm contact of last joint telescopic boom.
Four, description of drawings
Fig. 1 is the scheme drawing of the utility model:
Fig. 2 is the right elevation of Fig. 1:
Fig. 3 is the structural representation of dolly.
Five, the specific embodiment
Accompanying drawing is an embodiment of the utility model, specifies present embodiment in conjunction with accompanying drawing, includes tailstock 1 and arm tube 2, and it is split type that tailstock 1 and arm tube 2 are set to, and tailstock 1 is arranged on the rear end of arm tube 2 and is set to connect with arm tube 2 through welding manner.
In the present embodiment; Tailstock 1 is set to include framework 19, fixed block 18, side slide 11, top shoe 10 and pad 12, and framework 19 is set to inverted U-shaped, and the sidewall of framework 19 is provided with cavity; Be provided with at the circular arc position, both sides of the crossbeam of framework 19 and put groove; In the cavity of the sidewall of framework 19, be provided with fixed block 18, side slide 11 is set to through bolt and fixed block 18, in the groove of the circular arc position of framework 19, is provided with top shoe 10; Lower surface at side slide 11 and top shoe 10 is provided with pad 12, and side slide 11 is set to connect with the inner arm contact of last joint telescopic boom with top shoe 10.
In the present embodiment, also include orienting lug 3, the two ends of orienting lug 3 are set to the inclined-plane respectively, and orienting lug 3 is arranged in the arm tube 2 and is set to and connects with the trolley idler wheels contact, the height h2 of orienting lug 3 be set to trolley idler wheels on depth of groove h1 corresponding.
Be installed in the fixed block on the tailstock 1 18, side slide 11, top shoe 10 and pad 12 on the framework 19; And then tailstock 1 and arm tube 2 through welding manner be linked together; Again with the telescopic boom assembling of hanging oneself; Through the height of bearing cap shim 12, make side slide 11 contact connection with the telescopic boom of hanging oneself with top shoe 10.
In the present embodiment, the welding assembly is direct and arm tube assembly butt welding system after the assembly processing and fabricating is accomplished, and simultaneously at the afterbody welding orienting lug of arm tube, accomplishes the manufacturing process of whole jib, changes assembling over to.When assembling, slide block is installed in the afterbody top shoe seat of back, be adjusted to design gaps through installing bearing cap shim additional; Side slide is simultaneously spacing with it by the square hole of holding successfully in advance on the riser through being bolted to above the riser, and through bearing cap shim side clearance is adjusted.Crane arm support can ceaselessly stretch when work, and the dolly of jib in-to-in telescopic oil cylinder termination also can be thereupon in five joint arm afterbody turnover.When jib reached certain distance, dolly was withdrawn into above the four joint arms, in this process from five joint arm afterbodys; Dolly moves with respect to five joint arms under the effect of the side guiding of the inboard side guide plate of five joint arms backward, and spacer contacts earlier with middle orienting lug among the figure; On the inclined-plane at orienting lug rear portion, slowly fall then; Because h1=h2, when the rearmost end of spacer landing to orienting lug, under the roller contact surface just with four joint arms under the frid face contact; Whole process is the process of tangent contact, thereby does not steadily have impact; Otherwise when jib retracted to certain distance, getting on the bus to get into five joint arm afterbodys from four joint arms.In this process, dolly is under the side directional tagging of five joint arm guide plates, with respect to travelling forward of five joint arms; Spacer contacts earlier with orienting lug, on the inclined-plane at orienting lug rear portion, slowly rises then, because h1=h2; When spacer slides to the last plane of orienting lug, under the roller contact surface just with five the joint arms under the frid face contact, its path of motion is as shown in the figure; Whole motion process also is tangent contact, thereby also is steadily not have to impact.
The utlity model has following characteristics:
1, owing to designed tailstock 1, arm tube 2 and orienting lug 3; Through split production and slide block; Improved the precision of afterbody telescopic boom and last joint telescopic boom assembling; Reduce the gap between the assembling of afterbody telescopic boom and last joint telescopic boom, made moving of car also steady, therefore improved the stationarity of moving between the telescopic boom.
2, because tail structure is designed to the welding of segmentation assembly; Process operations such as this back segment assembly can punch after having welded easily, tapping have been avoided after in the past the sort of whole jib weld, and the huge jib preface of changing a job is carried out the complicated process that postwelding is processed again; Work capacity and labour intensity have been reduced; Improved make efficiency, the ingenious design of afterbody riser---both can do spacing use, can use for top shoe forms the permanent seat baffle plate naturally again for side slide; Utilize the structure of plate efficiently, simplified design.
3, the riser during this structure can effectively utilize with in the side slide of below the semi-girder steel rope of five joint arms is played supporting role, be beneficial to the assembling of steel rope simultaneously, prevent that the joint of steel rope landing to five in the fitting process arm and four from saving in the side gap of arms.
4, dolly head roller is along with the flexible of jib can be steadily reliably from five joint arm afterbody turnover; Reduced the impact of steel part to nylon pulley; Prolonged roller service life; Guarantee the reliability of jib work, also avoided the violent jitter phenomenon that causes because of the roller motion in the hoisting arm expansion process.
5, the afterbody assembly has adopted two riser structures, and afterbody " wall thickness " is strengthened, and the offside guide plate is arranged easily, the guiding of two sides when having made things convenient for dolly turnover jib.
6, thereby this structure can be adjusted the gap between adjusting arm and the arm to slide block easily through the service adjustment pad, has effectively avoided side-bend and downwarp after arm stretches out.
7, because this structure back segment side respectively is furnished with two side slides, thereby whole jib can guarantee when flexible well neutrality, avoided the torsion phenomenon after jib assembles.
In being used for the afterbody telescopic boom technical field of car hosit lifting arm; Every arm tube 2 that connects with tailstock 1 that includes; Be located at the orienting lug 3 that is used for the trolley idler wheels guiding on the arm tube 2; Tailstock 1 is set to split type with arm tube 2; Tailstock 1 is set to inverted U-shaped, the lateral surface of tailstock 1 be provided with on the technology contents of the slide block that connects of the inner arm contact of joint telescopic boom all in the protection domain at the utility model.
Claims (4)
1. afterbody telescopic boom that is used for the car hosit lifting arm; It is characterized in that: include tailstock (1), the arm tube (2) that connects with tailstock (1), be located at the orienting lug (3) that is used for the trolley idler wheels guiding on the arm tube (2); Tailstock (1) and arm tube (2) are set to split type; Tailstock (1) is set to inverted U-shaped, is provided with the slide block that connects with the inner arm contact of last joint telescopic boom at the lateral surface of tailstock (1).
2. the afterbody telescopic boom that is used for the car hosit lifting arm according to claim 1; It is characterized in that: tailstock (1) is arranged on the rear end of arm tube (2) and is set to connect with arm tube (2) through welding manner.
3. the afterbody telescopic boom that is used for the car hosit lifting arm according to claim 1; It is characterized in that: the two ends of orienting lug (3) are set to the inclined-plane respectively, and orienting lug (3) is arranged in the arm tube (2) and is set to and connects with the trolley idler wheels contact, the height h2 of orienting lug (3) be set to trolley idler wheels on depth of groove h1 corresponding.
4. the afterbody telescopic boom that is used for the car hosit lifting arm according to claim 1; It is characterized in that: tailstock (1) is set to include framework (19), fixed block (18), side slide (11), top shoe (10) and pad (12); Framework (19) is set to inverted U-shaped; The sidewall of framework (19) is provided with cavity; Be provided with at the circular arc position, both sides of the crossbeam of framework (19) and put groove; In the cavity of the sidewall of framework (19), be provided with fixed block (18), side slide (11) is set in the groove of the circular arc position of framework (19), be provided with top shoe (10) through bolt and fixed block (18); Lower surface at side slide (11) and top shoe (10) is provided with pad (12), and side slide (11) and top shoe (10) are set to connect with the inner arm contact of last joint telescopic boom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220154691 CN202594667U (en) | 2012-04-13 | 2012-04-13 | Tail telescopic arm for lifting arm of automobile crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220154691 CN202594667U (en) | 2012-04-13 | 2012-04-13 | Tail telescopic arm for lifting arm of automobile crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202594667U true CN202594667U (en) | 2012-12-12 |
Family
ID=47312227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220154691 Expired - Fee Related CN202594667U (en) | 2012-04-13 | 2012-04-13 | Tail telescopic arm for lifting arm of automobile crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202594667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417391A (en) * | 2015-11-30 | 2016-03-23 | 齐齐哈尔轨道交通装备有限责任公司 | Lifting device |
-
2012
- 2012-04-13 CN CN 201220154691 patent/CN202594667U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417391A (en) * | 2015-11-30 | 2016-03-23 | 齐齐哈尔轨道交通装备有限责任公司 | Lifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20130413 |