CN104210966A - Crane jib - Google Patents
Crane jib Download PDFInfo
- Publication number
- CN104210966A CN104210966A CN201410433358.3A CN201410433358A CN104210966A CN 104210966 A CN104210966 A CN 104210966A CN 201410433358 A CN201410433358 A CN 201410433358A CN 104210966 A CN104210966 A CN 104210966A
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- CN
- China
- Prior art keywords
- pulley
- shaft
- crane
- adapter shaft
- fixed
- Prior art date
- 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.)
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Abstract
The invention discloses a crane jib. The crane jib solves the problems that a jib connecting bearing and pulley sets are prone to being abraded, and the service life is short. The crane jib comprises a first pulley set, a second pulley set, composite connecting bearings and a crane jib body. The first pulley set and the second pulley set are fixed to the end of the crane rib body through a pulley shaft, pulleys are arranged on the pulley shaft in a sleeved mode, and lubricating oil is arranged on the contact face of the pulleys and the pulley shaft. The composite connecting bearings comprise connecting shafts, shaft sleeves, end covers and fixed clamping plates, the connecting shafts are sleeved with the shaft sleeves, and the shaft sleeves are rotatably fixed to the connecting shafts through the end covers on the two sides. Partition layers are arranged between the connecting shafts and the shaft sleeves, rolling steel balls facilitating rolling are arranged in the partition layers, and lubricating oil is poured into the partition layers. The connecting shafts are arranged on the root of the crane jib body in a penetrating mode, and are fixed to the crane jib body through fixed cover plates on the two sides of the connecting shafts, and the service life of the jib connecting bearing and the pulley sets is prolonged.
Description
Technical field
The present invention relates to a kind of crane boom.
Background technology
Hoisting crane on harbour and crane arm rotate and upper and lower tilting for a long time because arm lifts weight, the connection bearing of crane arm root and end sleeve have the assembly pulley of lifting rope all to rub seriously, cause bearing damage, often need to change connection bearing, maintenance cost is high, and maintenance intervals is short.
Summary of the invention
The object of the present invention is to provide a kind of connection bearing and assembly pulley all to rotate smooth and easy, wear and tear little crane boom.
For reaching this object, the present invention by the following technical solutions:
A kind of crane boom, comprise first, second assembly pulley, composite joint bearing and crane arm, described first, second assembly pulley is fixed on crane arm end by sheave shaft, on described sheave shaft, cover has pulley, pulley and sheave shaft contact surface are provided with lubricating oil, described composite joint bearing comprises adapter shaft, axle sleeve, end cap and fixing chuck plate, described axle sleeve is enclosed within described adapter shaft, and be fixed on adapter shaft by the end cap of both sides is rotating, interlayer is provided with between described adapter shaft and axle sleeve, the convenient rolling steel ball rolled is provided with in described interlayer, and filling has lubricating oil, described adapter shaft is through on crane arm root, and be fixed on crane arm by the securing cover plate of adapter shaft both sides.
Further, first, second assembly pulley described sheave shaft both sides be provided with axle clamping plate, be provided with spacer between pulley on described sheave shaft, axle clamping plate and between each pulley, described both sides axle clamping plate is all installed with bolt pulley, axle clamping plate and spacer are secured together.
Further, described end cap and axle sleeve are fixed together by flathead screw, described fixing card are also provided with the bolt of fixing composite joint bearing.
Further, described sheave shaft both sides are provided with lubricating cup, are connected with oil inlet after described lubricating cup, and the other end of oil inlet leads in the shoe cream room that on each pulley, correspondence is offered.
Further, the side of described adapter shaft is also provided with lubricating cup, is connected with oil inlet after described lubricating cup, and the oil inlet other end leads in rolling GL, the face that described end cap contacts with adapter shaft is provided with the seal ring of sealing lubricating oil.
Beneficial effect of the present invention is: the connection bearing of described crane arm adopts composite joint bearing, interlayer is provided with between axle sleeve in composite joint bearing and adapter shaft, be provided with the rolling steel ball of convenient rolling in interlayer, be also provided with lubricating oil, composite joint bearing is rotated smooth and easy, wear and tear little, composite joint bearing long service life, save maintenance cost, also lubricating oil is provided with between the pulley of first, second assembly pulley described and sheave shaft, the wearing and tearing of assembly pulley are also little, in addition described adapter shaft and sheave shaft are provided with lubricating cup, conveniently add lubricating oil.
Accompanying drawing explanation
Fig. 1 is the birds-eye view of the crane boom that the specific embodiment of the invention provides;
Fig. 2 is the cutaway view of the composite joint bearing of the crane boom that the specific embodiment of the invention provides;
Fig. 3 is the cutaway view of the first assembly pulley of the crane boom that the specific embodiment of the invention provides;
Fig. 4 is the cutaway view of the second assembly pulley of the crane boom that the specific embodiment of the invention provides.
In figure, 1, crane arm; 2, composite joint bearing; 21, adapter shaft; 22, axle sleeve; 23, interlayer; 24, end cap; 241, seal ring; 25, flathead screw; 26, fixing chuck plate; 3, the first assembly pulley; 4, the second assembly pulley; 5, pulley; 51, shoe cream room; 6, sheave shaft; 7, lubricating cup; 71, oil inlet; 8, axle clamping plate; 9, spacer ring; 10, bolt.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
As shown in Figure 1, described a kind of crane boom comprise first, second assembly pulley 3,4, composite joint bearing 2 and crane arm 1, first, second assembly pulley 3,4 described is fixed on the end of crane arm 1 by sheave shaft 6, described composite joint bearing 2 is fixed on crane arm 1 root by adapter shaft 21, and the both sides of described crane arm 1 root are respectively provided with a composite joint bearing 2.
As shown in Figure 2, described composite joint bearing 2 comprises adapter shaft 21, axle sleeve 22, end cap 24 and fixing chuck plate 26, described axle sleeve 22 is enclosed within described adapter shaft 21, and the end cap 24 be fixed on by flathead screw 25 by both sides on axle sleeve 22, rotatingly be fixed on adapter shaft 21, interlayer 23 is provided with between described axle sleeve 22 and adapter shaft 21, the convenient rolling steel ball rolled is provided with in described interlayer 23, and filling has lubricating oil, described end cap 24 and the contact surface of adapter shaft 21 are provided with the seal ring 241 preventing oil leakage, the right side of described adapter shaft 21 is provided with lubricating cup 7, lubricating cup 7 rear end is connected with oil inlet 71, described oil inlet 71 is communicated in described compartment 23, can be make-up oil in compartment 23, the two ends of described adapter shaft 21 are also provided with fixing chuck plate 26, described fixing chuck plate 26 is also fixed with the bolt 10 be fixed together by described composite joint bearing 2.
As Fig. 3, shown in Fig. 4, described first, second assembly pulley 3, 4 comprise pulley 5, sheave shaft 6, spacer ring 9 and axle clamping plate 8, described pulley 5 is rotating to be arranged on sheave shaft 6, spacer ring 9 is provided with between described pulley 5, ensure that each pulley 5 rotates separately, the two ends of described sheave shaft 6 are also provided with the axle clamping plate 8 be clamped on by pulley 5 on sheave shaft 6, also spacer ring 23 is provided with between described axle clamping plate 8 and pulley 5, described axle clamping plate 8 is also provided with for fixing bolt 10, the two ends of described sheave shaft 6 are also provided with lubricating cup 7, lubricating cup 7 rear end is connected with oil inlet 71, described oil inlet 71 is communicated in the shoe cream room 51 that on described pulley 5, correspondence is offered, lubrication pulley action can be played to make-up oil in shoe cream room 51, described first assembly pulley 3 is provided with four pulleys 5, described second assembly pulley 4 is provided with two pulleys 5, on two pulleys 5 of described second assembly pulley 4 and the first assembly pulley 3, two pulley 5 places in the outer part in a straight line.
Below only describe the present invention with embodiment, but the present invention is not limited to above-mentioned size and outward appearance illustration, more should form any restriction of the present invention.As long as any improvement do the present invention or modification all belong within the protection domain of the claims in the present invention opinion.
Claims (5)
1. a crane boom, it is characterized in that: comprise first, second assembly pulley, composite joint bearing and crane arm, described first, second assembly pulley is fixed on crane arm end by sheave shaft, on described sheave shaft, cover has pulley, pulley and sheave shaft contact surface are provided with lubricating oil, described composite joint bearing comprises adapter shaft, axle sleeve, end cap and fixing chuck plate, described axle sleeve is enclosed within described adapter shaft, and be fixed on adapter shaft by the end cap of both sides is rotating, interlayer is provided with between described adapter shaft and axle sleeve, the convenient rolling steel ball rolled is provided with in described interlayer, and filling has lubricating oil, described adapter shaft is through on crane arm root, and be fixed on crane arm by the securing cover plate of adapter shaft both sides.
2. crane boom according to claim 1, it is characterized in that: first, second assembly pulley described sheave shaft both sides be provided with axle clamping plate, be provided with spacer between pulley on described sheave shaft, axle clamping plate and between each pulley, described both sides axle clamping plate is provided with bolt pulley, axle clamping plate and spacer are secured together.
3. crane boom according to claim 1, is characterized in that: described end cap and axle sleeve are fixed together by flathead screw, described fixing card is also provided with the bolt of fixing composite joint bearing.
4. crane boom according to claim 1 and 2, is characterized in that: described sheave shaft both sides are provided with lubricating cup, are connected with oil inlet after described lubricating cup, and the other end of oil inlet leads in lubricant reservoir that each pulley is offered.
5. crane boom according to claim 1, it is characterized in that: the side of described adapter shaft is also provided with lubricating cup, be connected with oil inlet after described lubricating cup, the oil inlet other end leads in rolling GL, the face that described end cap contacts with adapter shaft is provided with the seal ring of sealing lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410433358.3A CN104210966A (en) | 2014-08-28 | 2014-08-28 | Crane jib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410433358.3A CN104210966A (en) | 2014-08-28 | 2014-08-28 | Crane jib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104210966A true CN104210966A (en) | 2014-12-17 |
Family
ID=52092951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410433358.3A Pending CN104210966A (en) | 2014-08-28 | 2014-08-28 | Crane jib |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104210966A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534019A (en) * | 2014-12-31 | 2015-04-22 | 无锡市新华起重工具有限公司 | Grab bucket balance weight expanding sleeve type fixing structure |
| CN112520617A (en) * | 2020-10-27 | 2021-03-19 | 武汉船用机械有限责任公司 | Pulley assembly and winch |
-
2014
- 2014-08-28 CN CN201410433358.3A patent/CN104210966A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534019A (en) * | 2014-12-31 | 2015-04-22 | 无锡市新华起重工具有限公司 | Grab bucket balance weight expanding sleeve type fixing structure |
| CN112520617A (en) * | 2020-10-27 | 2021-03-19 | 武汉船用机械有限责任公司 | Pulley assembly and winch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |