CN210029820U - Five-section telescopic arm telescopic mechanism of lorry-mounted crane - Google Patents
Five-section telescopic arm telescopic mechanism of lorry-mounted crane Download PDFInfo
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- CN210029820U CN210029820U CN201920593429.4U CN201920593429U CN210029820U CN 210029820 U CN210029820 U CN 210029820U CN 201920593429 U CN201920593429 U CN 201920593429U CN 210029820 U CN210029820 U CN 210029820U
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Abstract
The utility model discloses a lorry crane five sections telescopic boom telescopic machanism, basic arm, two sections arms, three sections arms, four sections arms, five sections arms including flexible hydro-cylinder and the mutual nested assembly, the piston rod and the basic arm of flexible hydro-cylinder are connected, the cylinder body and the two sections arms of flexible hydro-cylinder are connected, be connected with first cable structure between basic arm and the two sections arms, be connected with second cable structure between basic arm and the three sections arm, be connected with third cable structure between two sections arms and the four sections arm, be connected with fourth cable structure and fifth cable structure between three sections arm and the five sections arm. The utility model discloses five sections telescopic boom telescopic machanisms of lorry crane construct design ingenious, can reduce whole car weight, and hydro-cylinder simple structure, cost and reliability obtain improving, and five sections davits can realize synchronous flexible, and flexible fast, the operating efficiency is high, and the davit fault rate is low, and the reliability improves.
Description
Technical Field
The utility model relates to a multistage hydro-cylinder control technical field, concretely says so and relates to a five flexible arm telescopic machanisms of lorry crane.
Background
The boom telescoping mechanism of the conventional five-section boom lorry-mounted crane basically adopts the following two types:
1. the two-stage telescopic oil cylinder drives two telescopic arms, the mechanical stroke valve controls the sequence of the oil cylinder, and the zipper drives the rest two telescopic arm structures: the disadvantages of this structure are: the double-stage cylinder has a large self weight, so that the mass of the whole vehicle can be increased; the mechanical stroke valve of the oil cylinder has high requirements on the machining and assembly of the oil cylinder, so that the failure probability of the mechanical stroke valve is high, once the mechanical stroke valve fails, the suspension arm cannot retract or stretch out, the user experience is seriously influenced, the maintenance cost is high, and the whole suspension arm needs to be disassembled;
2. the two-stage telescopic oil cylinder drives two sections of telescopic arms, the sequence valve controls the sequence of the oil cylinders, and the zipper drives the rest two sections of telescopic arm structures: the disadvantages of this structure are: the sequence valve has large energy loss to a hydraulic system, and increases the operation cost.
Therefore, the present inventors have made extensive studies on how to design a five-section telescopic boom telescopic mechanism of a lorry-mounted crane, which can solve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a five sections telescopic boom telescopic machanisms of lorry-mounted crane, its structural design is ingenious, can reduce whole car weight, and hydro-cylinder simple structure, cost and reliability obtain improving, and five sections davits can realize synchronous flexible, and flexible fast, the operating efficiency is high, and the davit fault rate is low, and the reliability improves.
In order to realize the technical scheme, the utility model provides a flexible arm telescopic machanism of five sections of lorry crane, basic arm, two sections arms, three sections arms, four sections arms, five sections arms including flexible hydro-cylinder and the mutual nested assembly, the piston rod and the basic arm of flexible hydro-cylinder are connected, the cylinder body and the two sections arms of flexible hydro-cylinder are connected, be connected with first cable structure between basic arm and the two sections arms, be connected with second cable structure between basic arm and the three sections arms, be connected with third cable structure between two sections arms and the four sections arms, be connected with fourth cable structure and fifth cable structure between three sections arms and the five sections arms.
The utility model discloses lorry crane five sections telescopic boom telescopic machanisms, wherein first cable structure include that the three section arm stretches the arm rope row and install in telescopic cylinder's first rope sheave, the one end that the arm rope row was stretched to the three section arm is fixed in basic arm afterbody, the other end that the arm rope row was stretched to the three section arm is walked around first rope sheave after-fixing in three section arm afterbody.
The utility model discloses lorry crane five sections telescopic boom telescopic machanisms, wherein be provided with the hydro-cylinder support on the cylinder body of flexible hydro-cylinder, first rope sheave install in on the hydro-cylinder support.
The utility model discloses five sections telescopic boom telescopic machanisms of lorry-mounted crane, wherein second cable structure includes that three sections arms contract the arm cable and be fixed in the second rope sheave of two sections arm afterbody, the one end that three sections arms contracted the arm cable is fixed in basic arm head, the other end that three sections arms contracted the arm cable is walked around second rope sheave after-fixing in three sections arm afterbody.
The utility model discloses five sections telescopic boom telescopic machanisms of lorry-mounted crane, wherein third cable structure includes four sections arm stretching cables and is fixed in the third rope sheave of three sections arm heads, the one end of four sections arm stretching cables is fixed in four sections arm afterbody, the other end of four sections arm stretching cables is walked around third rope sheave after-fixing in two sections arm heads.
The utility model discloses lorry crane five sections telescopic boom telescopic machanism, wherein fourth cable structure includes five sections arm stretching guys and is fixed in the fourth rope sheave of four sections arm heads, the one end of five sections arm stretching guys is fixed in five sections arm afterbody, the other end of five sections arm stretching guys is walked around the fourth rope sheave after-fixing in three sections arm heads.
The utility model discloses lorry crane five sections telescopic boom telescopic machanisms, wherein fifth cable structure includes that five sections arms contract the arm cable, is fixed in the fifth rope sheave of three sections arm afterbody and be fixed in sixth rope sheave on the hydro-cylinder support, the one end that five sections arms contracted the arm cable is fixed in on the link of five sections arm head settings, five sections arms contract the other end of arm cable and walk around fifth rope sheave and sixth rope sheave after-fixing in three sections arm afterbody.
The utility model discloses five sections telescopic boom telescopic machanisms of lorry-mounted crane, wherein the link is including being fixed in the adjusting bolt and the half wheel of five sections arm heads, half wheel pass through the screw thread with adjusting bolt spiro union is in the same place, the one end that five sections arm contracted the arm cable is fixed in half take turns to.
The utility model discloses five sections flexible arm telescopic machanisms of lorry crane, wherein the piston rod of flexible hydro-cylinder through the round pin axle with basic arm is articulated, the cylinder body of flexible hydro-cylinder through the round pin axle with two sections arms are articulated.
After the scheme is adopted, the utility model discloses lorry crane five sections telescopic boom telescopic machanisms have following beneficial effect:
1. the basic arm and four telescopic arms, namely a second-section arm, a third-section arm, a fourth-section arm and a fifth-section arm, are driven to drive the second-section arm through a telescopic oil cylinder, and the third-section arm, the fourth-section arm and the fifth-section arm are driven by a first, second, third, fourth and fifth inhaul cable structure to realize synchronous telescopic of the fourth-section telescopic arm; the telescopic oil cylinder has a simple structure, and the cost and the reliability can be improved; the four telescopic arms realize complete synchronous telescopic, the telescopic speed is high, and the operation efficiency is high; the four telescopic arms are telescopic without hydraulic valve lock control and are completely driven by the first, second, third, fourth and fifth zipper structures, so that the failure rate of the five telescopic arms is reduced, and the reliability is improved;
2. the five-section arm extension arm zipper is used as the four-section arm contraction arm zipper at the same time, so that the number of zipper structures is reduced, and the space required by zipper structure arrangement is reduced.
Drawings
FIG. 1 is a schematic view of a five-section telescopic boom telescopic mechanism of the lorry-mounted crane of the utility model;
fig. 2 is a schematic view of the three-dimensional structure of the five-section telescopic boom telescopic mechanism of the lorry-mounted crane of the utility model.
Detailed Description
As shown in fig. 1 and 2, the utility model discloses lorry crane five sections telescopic boom telescopic machanism include telescopic cylinder 1 and the basic arm 2 of mutual nested assembly, two sections arm 3, three section arm 4, four sections arm 5, five sections arm 6, telescopic cylinder 1's piston rod is articulated through first round pin axle 7 and basic arm 2, telescopic cylinder 1's cylinder body is articulated through second round pin axle 8 and two sections arm 3, be connected with first cable structure between basic arm 2 and the two sections arm 3, be connected with second cable structure between basic arm 2 and the three section arm 4, be connected with third cable structure between two sections arm 3 and the four sections arm 5, be connected with fourth cable structure and fifth cable structure between three sections arm 4 and the five sections arm 6.
The first cable structure comprises a three-section arm extending arm rope row 9 and a first rope pulley 10 arranged on the telescopic oil cylinder 1, an oil cylinder support 11 is arranged on a cylinder body of the telescopic oil cylinder 1, and the first rope pulley 10 is arranged on the oil cylinder support 11. One end of the three-section arm extending arm rope row 9 is fixed at the tail part of the basic arm 2, and the other end of the three-section arm extending arm rope row 9 is fixed at the tail part of the three-section arm 4 after bypassing the first rope pulley 10.
The second cable structure comprises a three-section arm telescopic arm cable 12 and a second rope pulley 13 fixed at the tail of the two-section arm 3, one end of the three-section arm telescopic arm cable 12 is fixed at the head of the basic arm 2, and the other end of the three-section arm telescopic arm cable 12 is fixed at the tail of the three-section arm 4 after bypassing the second rope pulley 13.
The third cable structure comprises a four-section arm extending cable 14 and a third rope pulley 15 fixed at the head of the three-section arm 4, one end of the four-section arm extending cable 14 is fixed at the tail of the four-section arm 5, and the other end of the four-section arm extending cable 14 is fixed at the head of the two-section arm 3 after bypassing the third rope pulley 15.
The fourth cable structure comprises a five-section arm extending cable 16 and a fourth rope pulley 17 fixed at the head of the four-section arm 5, one end of the five-section arm extending cable 16 is fixed at the tail of the five-section arm 6, and the other end of the five-section arm extending cable 16 is fixed at the head of the three-section arm 4 after bypassing the fourth rope pulley 17.
The fifth cable structure comprises a five-section arm contraction arm cable 18, a fifth rope wheel 19 fixed at the tail of the three-section arm 4 and a sixth rope wheel 20 fixed on the oil cylinder support 11, one end of the five-section arm contraction arm cable 18 is fixed on a connecting frame 21 arranged at the head of the five-section arm 6, the connecting frame 21 comprises an adjusting bolt 22 and a half wheel 23 fixed at the head of the five-section arm 6, the half wheel 23 is connected with the adjusting bolt 22 in a threaded mode through threads, and one end of the five-section arm contraction arm cable 18 is fixed on the half wheel 23. The other end of the five-section arm retracting cable 18 is fixed at the tail part of the three-section arm 4 after passing around a fifth rope pulley 19 and a sixth rope pulley 20.
When the cylinder body of the telescopic oil cylinder 1 is telescopic, the cylinder rod and the basic arm 2 are kept static, and the cylinder body performs telescopic motion and drives the two-section arm 3 to perform telescopic motion together.
When the cylinder body of the telescopic oil cylinder 1 extends out, the two-section arm 3 is driven to extend forwards, the first rope pulley 10 on the oil cylinder support 11 extends forwards, and the three-section arm 4 is driven to extend forwards through the three-section arm extending arm rope row 9. When the three-section arm 4 extends forwards, the third rope pulley 15 at the head of the three-section arm 4 drives the four-section arm 5 to extend through the four-section arm extension arm zipper 14. When the four-section arm 5 extends forwards, the fourth rope pulley 17 at the head of the four-section arm 5 drives the five-section arm 6 to extend through the five-section arm extension zipper 16.
When the cylinder body of the telescopic oil cylinder 1 retracts, the cylinder body can drive the two-section arm 3 to retract, when the two-section arm 3 retracts, the first rope pulley 10 can drive the three-section arm 4 to retract through the three-section arm retraction arm zipper 12, when the three-section arm 4 retracts, the fifth rope pulley 19 drives the five-section arm 6 to retract through the five-section arm retraction arm zipper 18, when the five-section arm 6 retracts, the tail of the five-section arm 6 drives the five-section arm extension arm zipper 16 to move, and the five-section arm extension arm zipper 16 drives the four-section arm 5 to retract through the fourth rope pulley 17.
The utility model discloses lorry crane five sections telescopic boom telescopic machanism with basic arm 2 and four sections telescopic boom namely two sections of arms 3, three sections of arms 4, four sections of arms 5, five sections of arms 6 through a telescopic cylinder 1 drive two sections of arms 3, and three sections of arms 4, four sections of arms 5 and five sections of arms 6 are driven by first cable structure, second cable structure, third cable structure, fourth cable structure, fifth cable structure and are realized four sections of telescopic boom synchronous telescope, adopt single-stage telescopic cylinder 1 dead weight little, can reduce whole car weight; the telescopic oil cylinder 1 is simple in structure, and the cost and the reliability can be improved; the four telescopic arms of the two-section arm 3, the three-section arm 4, the four-section arm 5 and the five-section arm 6 realize complete synchronous telescopic, the telescopic speed is high, and the working efficiency is high; the four telescopic arms are telescopic without hydraulic valve lock control and are completely driven by a first cable structure, a second cable structure, a third cable structure, a fourth cable structure and a fifth zipper structure, so that the fault rate of the five telescopic arms is reduced, and the reliability is improved; in addition, the five-section arm extension arm zipper 16 is used as a four-section arm contraction arm zipper, so that the number of zipper structures is reduced, and the space required by zipper structure arrangement is reduced.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (9)
1. The utility model provides a lorry crane five sections telescopic boom telescopic machanisms, its characterized in that, includes telescopic cylinder and mutual nested basic arm, two sections arms, three sections arms, four sections arms, five sections arms of assembling, telescopic cylinder's piston rod and basic arm are connected, telescopic cylinder's cylinder body and two sections arms are connected, be connected with first cable structure between basic arm and the two sections arms, be connected with second cable structure between basic arm and the three sections arms, be connected with third cable structure between two sections arms and the four sections arms, be connected with fourth cable structure and fifth cable structure between three sections arms and the five sections arms.
2. The lorry-mounted crane five-section telescopic boom telescoping mechanism according to claim 1, wherein the first cable structure comprises a three-section boom extension boom rope row and a first rope pulley mounted on the telescopic cylinder, one end of the three-section boom extension boom rope row is fixed on the tail portion of the basic boom, and the other end of the three-section boom extension boom rope row is fixed on the tail portion of the three-section boom after bypassing the first rope pulley.
3. The lorry-mounted crane five-section telescopic arm telescopic mechanism according to claim 2, wherein a cylinder support is arranged on a cylinder body of the telescopic cylinder, and the first rope pulley is mounted on the cylinder support.
4. The lorry-mounted crane five-section telescopic boom telescoping mechanism as claimed in claim 3, wherein the second cable structure comprises a three-section boom telescopic boom cable and a second rope pulley fixed at the tail part of the two-section boom, one end of the three-section boom telescopic boom cable is fixed at the head part of the basic boom, and the other end of the three-section boom telescopic boom cable is fixed at the tail part of the three-section boom after bypassing the second rope pulley.
5. The truck-mounted crane five-section telescopic boom telescoping mechanism as claimed in claim 4, wherein the third cable structure comprises a four-section boom cable and a third rope pulley fixed at the head of the three-section boom, one end of the four-section boom cable is fixed at the tail of the four-section boom, and the other end of the four-section boom cable is fixed at the head of the two-section boom after bypassing the third rope pulley.
6. The lorry-mounted crane five-section telescopic boom telescoping mechanism according to claim 5, wherein the fourth cable structure comprises a five-section boom extension cable and a fourth rope pulley fixed on the head of the four-section boom, one end of the five-section boom extension cable is fixed on the tail of the five-section boom, and the other end of the five-section boom extension cable is fixed on the head of the three-section boom after bypassing the fourth rope pulley.
7. The lorry-mounted crane five-section telescopic boom telescoping mechanism according to claim 6, wherein the fifth cable structure comprises a five-section boom retracting boom cable, a fifth cable pulley fixed at the tail of the three-section boom and a sixth cable pulley fixed on the oil cylinder support, one end of the five-section boom retracting boom cable is fixed on a connecting frame arranged at the head of the five-section boom, and the other end of the five-section boom retracting boom cable is fixed at the tail of the three-section boom after bypassing the fifth cable pulley and the sixth cable pulley.
8. The truck crane five-section telescopic boom telescoping mechanism as claimed in claim 7, wherein the connecting frame comprises an adjusting bolt fixed on the head of the five-section boom and a half wheel, the half wheel is screwed with the adjusting bolt through a thread, and one end of the five-section boom retracting boom cable is fixed on the half wheel.
9. The lorry-mounted crane five-section telescopic boom telescopic mechanism as claimed in claim 1, wherein a piston rod of the telescopic oil cylinder is hinged to the basic boom through a pin shaft, and a cylinder body of the telescopic oil cylinder is hinged to the second boom through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920593429.4U CN210029820U (en) | 2019-04-26 | 2019-04-26 | Five-section telescopic arm telescopic mechanism of lorry-mounted crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920593429.4U CN210029820U (en) | 2019-04-26 | 2019-04-26 | Five-section telescopic arm telescopic mechanism of lorry-mounted crane |
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| CN210029820U true CN210029820U (en) | 2020-02-07 |
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| CN201920593429.4U Active CN210029820U (en) | 2019-04-26 | 2019-04-26 | Five-section telescopic arm telescopic mechanism of lorry-mounted crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002351A (en) * | 2019-04-26 | 2019-07-12 | 江苏宏昌天马物流装备有限公司 | Five section telescopic arm telescoping mechanism of lorry-mounted crane |
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- 2019-04-26 CN CN201920593429.4U patent/CN210029820U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002351A (en) * | 2019-04-26 | 2019-07-12 | 江苏宏昌天马物流装备有限公司 | Five section telescopic arm telescoping mechanism of lorry-mounted crane |
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