CN217076781U

CN217076781U - Hoisting mechanism based on excavator movable arm

Info

Publication number: CN217076781U
Application number: CN202220313563.6U
Authority: CN
Inventors: 黄金辉; 吴金锋; 侯文峰; 赵光; 夏炎; 宋吉
Original assignee: Xuzhou XCMG Excavator Machinery Co Ltd
Current assignee: Xuzhou XCMG Excavator Machinery Co Ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-07-29
Anticipated expiration: 2032-02-16

Abstract

The utility model discloses a hoisting mechanism based on excavator swing arm, including the swing arm, the swing arm top is provided with the fixing base, be provided with the crossbeam on the fixing base, the front end of crossbeam is connected in the top of swing arm, the rear end of crossbeam is installed and is risen to hoist, the one end of swing arm is provided with jack-up hook system; the lifting hook system comprises a pulley block and a lifting hook, wherein a guide pulley is arranged at the top of the pulley block, baffles are arranged on two sides of the guide pulley, a fixed pulley is arranged below the guide pulley, a movable pulley is arranged below the fixed pulley, and the bottom of the movable pulley is connected with the lifting hook; and a steel wire rope is arranged on the lifting winch. The mechanism can effectively enhance the lifting capacity of the mechanism through the crossbeam and the fixing seat arranged at the top, meets the multifunctional use requirement of the mechanism, further realizes multiple purposes in special engineering construction, and has simple structure and convenient operation.

Description

Hoisting mechanism based on excavator movable arm

Technical Field

The utility model belongs to the technical field of engineering machine tool, concretely relates to hoisting mechanism based on excavator swing arm.

Background

The excavator is widely applied in the engineering field and is one of the necessary products for engineering construction. Some working conditions needing to be hoisted can appear in construction, the hoisting and hoisting operation capability of the original excavator working device is poor, and the effect of the excavator working device in the construction operation needing to be hoisted is very limited.

At present, a common method for modifying an excavator is to carry out hoisting operation through an excavator bucket or add a special hoisting mechanism on the excavator bucket, the hoisting capability of the method is far inferior to that of other hoisting equipment with the same tonnage, the operation is very inconvenient, and certain potential safety hazards are caused. For example, CN105113560A discloses a working device with excavating and hoisting functions, wherein a hoisting device is fixed at the front end of a movable arm, and during excavating operation, the hoisting device is in an idle state, and during hoisting operation, a bucket is in an idle state, and during operation, the idle device can cause a safety hazard.

Disclosure of Invention

The utility model aims to prior art's is not enough, the utility model aims to provide a hoist mechanism based on excavator swing arm to excavator equipment is the basis, makes its overhead hoist that can satisfy special operating mode through changing less spare part under the prerequisite that does not change the excavator performance, replaces partial lifting device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a hoisting mechanism based on a movable arm of an excavator comprises the movable arm, wherein a fixed seat is arranged at the top of the movable arm, a cross beam is arranged on the fixed seat, the front end of the cross beam is connected to the top of the movable arm, and a hoisting winch is arranged at the rear end of the cross beam; a lifting hook system is arranged at one end of the movable arm; the lifting hook system comprises a pulley block and a lifting hook, wherein a guide pulley is arranged at the top of the pulley block, baffles are arranged on two sides of the guide pulley and are connected with the guide pulley and the movable arm through a pin shaft, a fixed pulley is arranged below the guide pulley, a movable pulley is arranged below the fixed pulley, and the bottom of the movable pulley is connected with the lifting hook; and a steel wire rope is arranged on the lifting winch, and is led out from the lifting winch, penetrates through the pulley block and is fixed on one side of the fixed pulley.

The mechanism can effectively enhance the lifting capacity of the mechanism through the cross beam and the fixing seat arranged at the top, meets the multifunctional use requirement of the mechanism, further realizes multiple purposes in special engineering construction, has simple structure and convenient operation, avoids potential safety hazards during lifting, and has lifting capacity far exceeding that of the same tonnage.

Optionally, a round hole is formed in the middle of the bottom of the cross beam, and a hole is formed in the fixing seat and connected with the cross beam through a fixing bolt.

The mode through the bolt can effectively improve the production process, has simplified the assembling process of this mechanism, and easy dismounting, easily repairs, can change the inefficacy part fast, has remain certain flexibility simultaneously to in the different job sites of cooperation, in later stage technical upgrade, it is also very convenient to update the part.

Optionally, the front end of the cross beam is fixedly connected with the top of the movable arm through a bolt.

The through hole used by the bolt connection is simple to process, simple in structure, convenient to disassemble and assemble and low in use cost.

Optionally, the outline of the baffle is larger than the outline of the outer circle of the upper half part of the guide pulley, the baffle is provided with a mounting hole, and the mounting hole and the center hole of the guide pulley are concentrically arranged.

The baffle not only can make leading pulley avoid external striking, and the baffle is leading pulley's main frame, has effectively played the supporting role to leading pulley, and can also prevent that wire rope from droing, excellent in use effect.

Optionally, the movable arm further includes a support arranged at an end of the movable arm, the baffle plates are provided with positioning holes, the support is provided with a stop rod, and the stop rod simultaneously penetrates through the positioning holes on the two baffle plates.

The stop lever is inserted into the two positioning holes so as to further fix the movable arm and the pulley block, and meanwhile, the structure is simple and the installation is convenient.

Optionally, the baffle is further provided with three limiting holes, three sleeves are further arranged between the two baffles, the sleeves are fixedly connected with the baffles through bolts and nuts, the length of each sleeve is larger than the width of each guide pulley, and the steel wire rope penetrates between each guide pulley and the corresponding limiting sleeve.

The sleeve can make and keep the certain distance between two flanges to guide pulley installs between two baffles, and three sleeve makes two baffles connect more firmly through inside bolt and nut simultaneously, and the stability when supplementary promotion this mechanism lifts by crane.

Optionally, the pin shaft is further provided with two retaining rings, and the two retaining rings are respectively located on two sides of the baffle.

The retaining ring can be matched with the pin shaft to play a role in fixing, and is good in force bearing effect, stable in structure and convenient to use.

Optionally, a movable arm hole is formed in the support, the pin shaft penetrates through the movable arm hole to enable the baffle, the guide pulley and the support to be connected, and the guide pulley is rotatably mounted in the support by taking the pin shaft as a center.

The guide pulley can flexibly rotate inside the baffle so that the mechanism can adjust the angle between the lifting hook system and the movable arm, and is suitable for various conditions during construction in a construction site.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the mechanism can effectively enhance the lifting capacity of the mechanism through the cross beam and the fixed seat arranged at the top, meets the multifunctional use requirement of the mechanism, further realizes multiple purposes in special engineering construction, has simple structure and convenient operation, avoids potential safety hazard during lifting, and has lifting capacity far exceeding that of lifting equipment with the same tonnage;

2. the mode through the bolt can effectively improve the production process, has simplified the assembling process of this mechanism, and easy dismounting, easily repairs, can change the inefficacy part fast, has remain certain flexibility simultaneously to in the different job sites of cooperation, in later stage technical upgrade, it is also very convenient to update the part.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the bracket of the present invention;

FIG. 3 is a schematic structural view of the baffle of the present invention;

fig. 4 is a schematic structural view of the pulley block of the present invention;

FIG. 5 is a schematic view of the structure of the present invention for guiding the sliding down;

reference numerals: 1. a movable arm; 2. a cross beam; 3. hoisting and hoisting; 4. a fixed seat; 5. a guide pulley; 6. a wire rope; 7. a pulley block; 8. a hook; 9. a baffle plate; 10. a sleeve; 11. a gear lever; 12. a support; 13. a pin shaft; 14. a baffle ring; 15. a movable arm hole; 16. a bolt; 17. a nut; 18. a fixed pulley; 19. a movable pulley; 101. mounting holes; 102. a limiting hole; 103. and (7) positioning the holes.

Detailed Description

The technical solution of the present invention will be described in detail and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the present invention are shown. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Referring to fig. 1-5, a lifting mechanism based on a movable arm of an excavator comprises a movable arm 1, a fixed seat 4 is arranged at the top of the movable arm 1, a cross beam 2 is arranged on the fixed seat 4, the front end of the cross beam 2 is connected to the top of the movable arm 1, and a lifting winch 3 is arranged at the rear end of the cross beam 2; one end of the movable arm 1 is provided with a lifting hook 8 system; the lifting hook 8 system comprises a pulley block 7 and a lifting hook 8, wherein the top of the pulley block 7 is provided with a guide pulley 5, two sides of the guide pulley 5 are provided with baffle plates 9, the baffle plates 9 are connected with the guide pulley 5 and the movable arm 1 through a pin shaft 13, a fixed pulley 18 is arranged below the guide pulley 5, a movable pulley 19 is arranged below the fixed pulley 18, and the bottom of the movable pulley 19 is connected with the lifting hook 8; a steel wire rope 6 is arranged on the hoisting winch 3, and the steel wire rope 6 is led out from the hoisting winch 3, passes through the pulley block 7 and is fixed on one side of the fixed pulley 18; the mechanism can effectively enhance the lifting capacity of the mechanism through the cross beam 2 and the fixing seat 4 arranged at the top, meets the multifunctional use requirement of the mechanism, further realizes multiple purposes in special engineering construction, has simple structure and convenient operation, avoids potential safety hazards when being lifted, and has lifting capacity far exceeding that of the lifting equipment with the same tonnage.

The bottom intermediate position of crossbeam 2 is provided with the round hole, sets up the hole on fixing base 4 and is connected with crossbeam 2 through fixing bolt, can effectively improve the production process through the mode of bolt, has simplified the assembling process of this mechanism, and easy dismounting, easily repair, can change the inefficacy part fast, has remain certain flexibility simultaneously to in the different job sites of cooperation, in later stage technical upgrade, it is also very convenient to update the part.

The front end of the beam 2 is fixedly connected with the top of the movable arm 1 through the bolt 16, and the through hole used by the bolt 16 is simple to process, simple in structure, convenient to disassemble and assemble and low in use cost.

The baffle 9 profile is greater than the first outer circle profile of leading pulley 5, is provided with mounting hole 101 on the baffle 9, and mounting hole 101 sets up with the centre bore of leading pulley 5 is concentric, and baffle 9 not only can make leading pulley 5 avoid external striking, and baffle 9 is leading pulley 5's main frame, has effectively played the supporting role to leading pulley 5, and can also prevent that wire rope 6 from droing, excellent in use effect.

The movable arm 1 further comprises a support 12 arranged at the end part of the movable arm 1, positioning holes 103 are formed in the baffle plates 9, a stop lever 11 is arranged on the support 12, the stop lever 11 simultaneously penetrates through the positioning holes 103 in the two baffle plates 9, and the stop lever 11 is inserted into the two positioning holes 103 so as to further fix the movable arm 1 and the pulley block 7.

The baffle plates 9 are also provided with three limiting holes 102, three sleeves 10 are arranged between the two baffle plates 9, the sleeves 10 are fixedly connected with the baffle plates 9 through bolts 16 and nuts 17, the length of each sleeve 10 is larger than the width of each guide pulley 5, and the steel wire rope 6 penetrates between each guide pulley 5 and each limiting sleeve 10; the sleeve 10 can keep a certain distance between two flanges so that the guide pulley 5 is installed between two baffles 9, and meanwhile, the three sleeves 10 enable the two baffles 9 to be connected more stably through the bolts 16 and the nuts 17 inside, so that the stability of the mechanism during hoisting is improved in an auxiliary manner.

The pin shaft 13 is further provided with two retaining rings 14, the two retaining rings 14 are respectively positioned on two sides of the baffle 9, and the retaining rings 14 can be matched with the pin shaft 13 to play a fixing role, have a good bearing effect and are stable in structure and convenient to use.

The support 12 is provided with a movable arm hole 15, a pin shaft 13 is inserted into the movable arm hole 15, the mounting hole 101 and a central hole of the guide pulley 5, the guide pulley 5 is rotatably mounted in the support 12 by taking the pin shaft 13 as a center, and the guide pulley 5 can flexibly rotate inside the baffle 9, so that the mechanism can adjust the angle between the lifting hook 8 system and the movable arm 1 and is suitable for various conditions during construction in a construction site.

The baffle 9, the sleeve 10, the stop lever, the bolt 16 and the nut 17 are combined to provide a guide function for the steel wire rope 6; the boom 1 in the present application may be replaced with a boom having a box-shaped cross section or a truss cross section, instead of the boom 1 of the excavator, and the same effect can be obtained.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.

Claims

1. A hoisting mechanism based on a movable arm of an excavator is characterized by comprising the movable arm, wherein a fixed seat is arranged at the top of the movable arm, a cross beam is arranged on the fixed seat, the front end of the cross beam is connected to the top of the movable arm, a hoisting winch is installed at the rear end of the cross beam, and a hoisting hook system is arranged at one end of the movable arm; the lifting hook system comprises a pulley block and a lifting hook, wherein a guide pulley is arranged at the top of the pulley block, baffles are arranged on two sides of the guide pulley and are connected with the guide pulley and the movable arm through a pin shaft, a fixed pulley is arranged below the guide pulley, a movable pulley is arranged below the fixed pulley, and the bottom of the movable pulley is connected with the lifting hook; and a steel wire rope is arranged on the lifting winch, and is led out from the lifting winch, penetrates through the pulley block and is fixed on one side of the fixed pulley.

2. The hoisting mechanism based on the movable arm of the excavator as claimed in claim 1, wherein a round hole is formed in the middle of the bottom of the cross beam, and a hole is formed in the fixing seat and connected with the cross beam through a fixing bolt.

3. The hoisting mechanism based on the movable arm of the excavator as claimed in claim 1, wherein the front end of the cross beam is fixedly connected with the top of the movable arm through a bolt.

4. The hoisting mechanism based on the movable arm of the excavator as claimed in claim 1, wherein the baffle plate has a profile larger than an outer circle profile of an upper half portion of the guide pulley, and the baffle plate is provided with a mounting hole which is concentric with a central hole of the guide pulley.

5. The hoisting mechanism based on the excavator boom of claim 1, wherein the boom further comprises a bracket arranged at the end of the boom, positioning holes are arranged on the baffles, and a stop rod is arranged on the bracket and simultaneously passes through the positioning holes on the two baffles.

6. The hoisting mechanism based on the excavator movable arm as claimed in claim 1, wherein three limiting holes are further formed in the baffle, three sleeves are further arranged between the two baffles, the sleeves are fixedly connected with the baffle through bolts and nuts, the length of each sleeve is greater than the width of the guide pulley, and the steel wire rope penetrates between the guide pulley and the limiting sleeve.

7. The hoisting mechanism based on the movable arm of the excavator as claimed in claim 1, wherein the pin shaft is further provided with two retaining rings, and the two retaining rings are respectively positioned at two sides of the baffle.

8. The hoisting mechanism based on the excavator movable arm as claimed in claim 5, wherein the bracket is provided with a movable arm hole, the pin shaft penetrates through the movable arm hole to connect the baffle, the guide pulley and the bracket, and the guide pulley is rotatably mounted in the bracket by taking the pin shaft as a center.