CN211393651U

CN211393651U - Tower arm support rod of crawler crane

Info

Publication number: CN211393651U
Application number: CN201922069981.6U
Authority: CN
Inventors: 肖华; 薛振; 刘威; 杨慧杰
Original assignee: Villead Mechanical Design Xuzhou Co ltd
Current assignee: Weierlide (Xuzhou) Construction Machinery Technology Research Institute Co.,Ltd.
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-09-01
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a tower arm support rod of a crawler crane, which comprises a base, wherein a main arm is arranged on the surface of the upper end of the base close to the middle position, an auxiliary arm is arranged on the main arm, a first rotating shaft is arranged between the main arm and the auxiliary arm, a winding shaft is arranged on the surface of the left end of the main arm close to the lower end position, a first support rod is arranged on the surface of the left end of the main arm close to the upper end position, a second support rod is arranged on the upper end of the auxiliary arm, a pulley is arranged on the second support rod, a rope is arranged between the pulley and the auxiliary arm, and a buffer rod is arranged between the first support; the utility model discloses can alleviate the pulling force that the rope received, prevent that the rope from damaging because the pulling force is too big, can play fine supporting role to main arm and fly jib for equipment is more stable, is difficult for empting, and the fly jib can be better with the object hoist, and by the gravity that the object transmitted on the fly jib, can be shared by vaulting pole two and vaulting pole one, makes the gravity that it received littleer.

Description

Tower arm support rod of crawler crane

Technical Field

The utility model belongs to the crawler crane field specifically is a crawler crane tower arm vaulting pole.

Background

The crawler crane is a mobile movable arm crane with a crawler running device, and comprises a movable arm, a rotary table and other metal structures, a lifting, rotating, amplitude-changing and running mechanism and the like, wherein the lifting and amplitude-changing mechanism adopts a winding drum to wind a steel rope, a fetching device is lifted and the movable arm is lifted and amplitude-changing by pitching through a complex pulley block, a rotary table type supporting device is adopted as a rotary mechanism, and the mechanism has two driving modes: 1. the integrated drive is realized by passing the power of the internal combustion engine through a hydraulic coupler and a power distribution box and then respectively operating a clutch to enable each mechanism to move; 2. the power is driven by an internal combustion engine generator set, and the mechanism is driven to move by the power through each motor and transmission part, so that the lifting and loading-unloading mechanism is suitable for lifting, loading and unloading operations of industry and forestry;

the existing crawler crane tower arm support rod has certain defects when in use, the auxiliary arm is not easy to pull up heavy objects, the crane has poor stability during working, and the rope is easy to break.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a crawler crane tower arm vaulting pole mainly solves following problem:

1) the small rod and the spring are arranged in the buffer rod, so that when tension comes, the small rod can be pulled out by the rope, the spring can be stretched outwards, and correspondingly, the spring can generate inward elastic force in the stretching process to enable the small rod to contract inwards, so that the tension applied to the rope can be reduced, and the technical problem that the existing rope is easy to break is solved;

2) the hydraulic telescopic rods are arranged at the bottom ends of the main arm and the auxiliary arm, so that the auxiliary arm can be well supported, the three-support-rod-matched rope can provide backward tension for the main arm, and the first hydraulic telescopic rod can well support the third support rod, so that the equipment is more stable and is not easy to topple over, and the technical problem of poor stability of the existing crane during working is solved;

3) the motor drives the winding shaft to rotate, so that the rope can be well wound on the winding shaft, upward pulling force can be generated on the auxiliary arm through the two supporting rods in a matching mode, the auxiliary arm can better lift an object, the gravity transmitted by the object on the auxiliary arm can be shared by the two supporting rods and the one supporting rod, the gravity received by the auxiliary arm is smaller, and the technical problem that the existing auxiliary arm is not easy to pull up a heavy object is solved.

The purpose of the utility model can be realized by the following technical scheme:

a tower arm support rod of a crawler crane comprises a base, wherein a main arm is arranged on the surface of the upper end of the base close to the middle position, an auxiliary arm is arranged on the main arm, a first rotating shaft is arranged between the main arm and the auxiliary arm, a winding shaft is arranged on the surface of the left end of the main arm close to the lower end position, a first support rod is arranged on the surface of the left end of the main arm close to the upper end position, a second support rod is arranged on the upper end of the auxiliary arm, a pulley is arranged on the second support rod, a rope is arranged between the pulley and the auxiliary arm, a buffer rod is arranged between the first support rod and the second support rod, the buffer rod comprises a sleeve and a small rod, a groove is formed in the right end of the sleeve, a spring is arranged between the left side wall and the small rod in the groove, a third support rod is arranged on the left side of the main arm, a first hydraulic, and rollers are arranged at the front end and the rear end of the second rotating shaft, and sliding grooves are formed between the rollers and the auxiliary arms.

As a further aspect of the present invention: the main arm is movably mounted with the auxiliary arm through a first rotating shaft, and the auxiliary arm rotates around the first rotating shaft within a range of 30-180 degrees.

As a further aspect of the present invention: the winding shaft is movably mounted with the main arm through a support, a motor is arranged at one end of the winding shaft, and one end of the rope is wound on the winding shaft.

As a further aspect of the present invention: the second hydraulic telescopic rod is movably mounted with the auxiliary arm through a second rotating shaft matched with the sliding groove, and the left end of the second hydraulic telescopic rod and the main arm are fixedly mounted.

As a further aspect of the present invention: the small rod is movably arranged in the groove.

As a further aspect of the present invention: the pulley and the support rod II are movably arranged.

The utility model has the advantages that:

the utility model discloses a be provided with the buffer beam, when the fly jib just pulled up the object the moment, can produce very big pulling force, buffer beam can be fine at this moment alleviate the pulling force, the pulling force comes temporarily, the little pole can be outwards pulled out by the rope, the spring can be outwards stretched this moment, relatively, the spring can produce inside elasticity in tensile process, make the little pole inwards shrink, thereby can alleviate the pulling force that the rope received, prevent that the rope from damaging because the pulling force is too big;

in the process that the auxiliary arm is slowly raised, the hydraulic telescopic rod II can slowly extend to play a good supporting role for the auxiliary arm, the brace rod three-matched rope can provide backward pulling force for the main arm, and the hydraulic telescopic rod I can play a good supporting role for the brace rod three, so that the equipment is more stable and is not easy to topple;

the utility model discloses it is rotatory that well motor can drive the spool, and the winding that makes the rope can be fine is on the spool, can produce an ascending pulling force to the fly jib through two cooperation vaulting poles one of vaulting poles for the fly jib can be better with the object hoist, and by the gravity that the object transmitted on the fly jib, can be shared by vaulting pole two and vaulting pole one, makes the gravity that it received littleer.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the buffer rod structure of the present invention;

fig. 3 is a schematic structural view of the middle hydraulic telescopic rod of the present invention.

FIG. 1, base; 2. a main arm; 3. an auxiliary arm; 4. a first rotating shaft; 5. a spool; 6. a first support rod; 7. a second support rod; 8. a pulley; 9. a rope; 10. a buffer rod; 11. a sleeve; 12. a groove; 13. a small rod; 14. a spring; 15. a third support rod; 16. a first hydraulic telescopic rod; 17. a second hydraulic telescopic rod; 18. a second rotating shaft; 19. a roller; 20. a chute.

Detailed Description

As shown in fig. 1-3, a tower arm brace rod of a crawler crane comprises a base 1, a main arm 2 is arranged on the upper end surface of the base 1 near the middle position, an auxiliary arm 3 is arranged on the main arm 2, a first rotating shaft 4 is arranged between the main arm 2 and the auxiliary arm 3, a spool 5 is arranged on the left end surface of the main arm 2 near the lower end position, a first brace rod 6 is arranged on the left end surface of the main arm 2 near the upper end position, a second brace rod 7 is arranged on the upper end of the auxiliary arm 3, a pulley 8 is arranged on the second brace rod 7, a rope 9 is arranged between the pulley 8 and the auxiliary arm 3, a buffer rod 10 is arranged between the first brace rod 6 and the second brace rod 7, the buffer rod 10 comprises a sleeve 11 and a small rod 13, a groove 12 is arranged on the sleeve 11, a spring 14 is arranged between the left side wall inside the groove 12 and the small rod 13, a third brace rod 15 is arranged on the left side of, the upper end of the second hydraulic telescopic rod 17 is provided with a second rotating shaft 18, the front end and the rear end of the second rotating shaft 18 are both provided with idler wheels 19, and a sliding groove 20 is formed between each idler wheel 19 and the auxiliary arm 3.

Main arm 2 is through pivot one 4 and 3 movable mounting of fly jib, and fly jib 3 revolutes pivot one 4 rotation range and is 30-180, and the one end of spool 5 is provided with the motor, and the one end winding of rope 9 is on spool 5, and hydraulic telescoping rod two 17 cooperates spout 20 and fly jib 3 movable mounting through pivot two 18, and hydraulic telescoping rod two 17 left ends and main arm 2 fixed mounting, little pole 13 movable mounting are inside recess 12, pulley 8 and two 7 movable mounting of vaulting pole.

A tower arm supporting rod of a crawler crane is characterized in that during operation, a folded auxiliary arm 3 is firstly unfolded, a roller 19 in a sliding groove 20 drives a rotating shaft II 18 to move leftwards, then a hydraulic telescopic rod II 17 is fixed, then an object is hung at the leftmost end of the auxiliary arm 3, then the auxiliary arm 3 is slowly lifted, the hydraulic telescopic rod II 17 can slowly extend and can well support the auxiliary arm 3 to prevent the auxiliary arm 3 II from being damaged due to overweight, then a motor can drive a winding shaft 5 to rotate, a rope 9 can be well wound on the winding shaft 5, an upward pulling force can be generated on the auxiliary arm 3 by matching a supporting rod I6 through a supporting rod II 7, the auxiliary arm 3 can better lift the object, the gravity transmitted by the object on the auxiliary arm 3 can be shared by the supporting rod II 7 and the supporting rod I6 to enable the gravity borne by the supporting rod II 7 to be smaller, a supporting rod III 15 can well fix a main arm 2 through the rope 9, at equipment during operation, stay bar three 15 cooperation rope 9 can provide backward pulling force for main arm 2, make equipment more stable, be difficult for empting, and hydraulic telescoping rod 16 can play fine supporting role to stay bar three 15, when the fly jib 3 in the twinkling of an eye of just pulling up the object, can produce very big pulling force, rope 9 can damage because the pulling force is too big, buffer beam 10 can be fine the release pulling force this moment, the pulling force comes temporarily, little pole 13 can be pulled out by rope 9 outwards, spring 14 can be outwards stretched this moment, it is relative, spring 14 can produce inside elasticity at tensile in-process, make little pole 13 inwards shrink, thereby can alleviate the pulling force that rope 9 received.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims

1. The tower arm supporting rod of the crawler crane is characterized by comprising a base (1), wherein a main arm (2) is arranged on the upper end surface of the base (1) close to the middle position, an auxiliary arm (3) is arranged on the main arm (2), a first rotating shaft (4) is arranged between the main arm (2) and the auxiliary arm (3), a winding shaft (5) is arranged on the left end surface of the main arm (2) close to the lower end position, a first supporting rod (6) is arranged on the left end surface of the main arm (2) close to the upper end position, a second supporting rod (7) is arranged on the upper end of the auxiliary arm (3), a pulley (8) is arranged on the second supporting rod (7), a rope (9) is arranged between the pulley (8) and the auxiliary arm (3), a buffer rod (10) is arranged between the first supporting rod (6) and the second supporting rod (7), and the buffer rod (10) comprises a sleeve (11) and a, recess (12) have been seted up to sleeve pipe (11) right-hand member, be provided with spring (14) between recess (12) inside left side wall and small pole (13), main arm (2) left side is provided with vaulting pole three (15), vaulting pole three (15) left side is provided with hydraulic telescoping rod one (16), main arm (2) right-hand member is provided with hydraulic telescoping rod two (17), hydraulic telescoping rod two (17) upper end is provided with pivot two (18), both ends all are provided with gyro wheel (19) around pivot two (18), be provided with spout (20) between gyro wheel (19) and auxiliary arm (3).

2. A tower stay of crawler crane according to claim 1, wherein the primary arm (2) is movably mounted to the secondary arm (3) by a first rotation axis (4), and the secondary arm (3) rotates about the first rotation axis (4) within a range of 30-180 °.

3. The tower arm brace of the crawler crane according to claim 1, wherein the spool (5) is movably installed with the main arm (2) through a bracket, one end of the spool (5) is provided with a motor, and one end of the rope (9) is wound on the spool (5).

4. The tower boom brace of the crawler crane as claimed in claim 1, wherein the second hydraulic telescopic rod (17) is movably mounted with the auxiliary boom (3) through a second rotating shaft (18) and a sliding chute (20), and the left end of the second hydraulic telescopic rod (17) is fixedly mounted with the main boom (2).

5. A crawler crane tower boom brace according to claim 1, characterized in that the small bar (13) is movably mounted inside the groove (12).

6. A crawler crane tower boom brace according to claim 1, characterized in that the pulley (8) and the second brace (7) are movably mounted.