CN219217469U

CN219217469U - Leveling mechanism for overhead working truck

Info

Publication number: CN219217469U
Application number: CN202320477230.1U
Authority: CN
Inventors: 李朋; 李佳; 孔超; 王建虎; 胡方旭
Original assignee: Shandong Beijun Heavy Industry Co ltd
Current assignee: Shandong Beijun Heavy Industry Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-06-20
Anticipated expiration: 2033-03-14

Abstract

The utility model discloses a leveling mechanism of an overhead working truck, which relates to the technical field of overhead working trucks and comprises a base for supporting equipment, wherein a rotary table for providing lifting power is fixedly arranged on the upper surface of the base, one end of the rotary table is provided with a support arm, one end of the support arm is provided with a leveling device, the upper surface of the leveling device is fixedly connected with a damping device for damping and buffering, and the upper surface of the damping device is fixedly connected with a working bucket. This overhead working truck leveling mechanism, in the leveling in-process, promote the slider through the bracing piece and slide to promote the piston through the push rod and remove in the inner tube is inside, thereby promote hydraulic oil and flow through logical groove round trip, form damping force to the piston through the frictional force between logical groove, spring and the hydraulic oil, make the vibration energy that produces change into fluid heat energy, distribute to the atmosphere, thereby reach the function that reduces vibrations, improve the stability of working bucket, reduce the emergence of incident.

Description

Leveling mechanism for overhead working truck

Technical Field

The utility model relates to the technical field of overhead working vehicles, in particular to a leveling mechanism of an overhead working vehicle.

Background

The overhead working truck is mainly widely applied to the field of overhead working trucks such as electric power, street lamps, municipal administration, gardens, traffic, advertisements and the like, and currently, the overhead working truck on the market mainly comprises manned overhead working trucks. In the leveling process of the overhead working truck, the ground of the platform is required to be always in a horizontal state so as to ensure stable and safe operation.

Publication number CN103058104B discloses a working bucket leveling mechanism of an overhead working truck, which has the function of enabling a working bucket to rotate smoothly at a larger angle relative to a forearm, but the device has the following defects that vibration can be generated in the leveling process, the working bucket has poor stability during leveling, safety accidents are easy to occur, and unnecessary loss is caused.

Therefore, the utility model provides a leveling mechanism of an overhead working truck, which aims to solve the problems.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a leveling mechanism for an overhead working truck, which has the functions of reducing vibration and improving the stability of a working bucket and solves the problems.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides an aerial working vehicle leveling mechanism, includes the base that is used for supporting equipment, the last fixed surface of base installs the revolving platform that is used for providing lift power, the one end of revolving platform is provided with the support arm, the one end of support arm is provided with levelling device, the last fixed surface of levelling device is connected with damping device's shock attenuation buffering, damping device's last fixed surface is connected with the working bucket, damping device includes the base table, the lower fixed surface of base table is connected at levelling device's upper surface, the spout has been seted up to the upper surface of base table, the inner chamber fixedly connected with of spout is used for absorbing the shock-absorbing column of vibratory force, the one end fixedly connected with of shock-absorbing column is used for at the inside gliding slider of spout, the surface sliding connection of slider is at the inner chamber of spout, the surface hinge of slider has the bracing piece, the upper end hinge of bracing piece has the supporting bench, the upper surface fixed connection of supporting bench is at the lower surface of working bucket, the lower surface fixed surface of spout is connected with the reset block that is used for supplementary buffering, the lower surface fixed surface of reset block is connected at the upper surface of base table.

Preferably, the reset block comprises an upper connecting plate, the lower surface of the upper connecting plate is fixedly connected to the lower surface of the supporting table, the lower surface of the upper connecting plate is provided with a lower connecting plate, the lower surface of the lower connecting plate is fixedly connected to the center of the upper surface of the bottom table, arc-shaped grooves are formed in the lower surface of the upper connecting plate and the upper surface of the lower connecting plate, and steel balls are slidingly connected to the inner portion of the arc-shaped grooves.

Preferably, the shock-absorbing column comprises a shell, the fixed surface of shell is connected in the inside of spout, the inner chamber one end fixedly connected with inner tube of shell, logical groove has been seted up on the surface of inner tube, the inner chamber surface fixedly connected with spring of inner tube, the one end fixedly connected with piston of spring, the surface of piston and the inner wall sliding connection of inner tube, the fixed surface of piston is connected with the push rod, the one end of push rod extends to the outside of shell and with the outer wall swing joint of shell, the one end fixed connection of push rod is at the surface of slider, the inside packing of shell and inner tube has damping oil.

Preferably, the upper surface of the lower connecting plate is provided with an elastic block, and the upper surface of the elastic block is arranged on the lower surface of the upper connecting plate.

Preferably, the surface of the shell is fixedly connected with an oil seal, and the surface of the oil seal is connected to the side wall of the push rod in a sliding manner.

Preferably, one end of the inner cylinder is fixedly connected with a support column, and one end of the support column is fixedly connected with the other end of the inner cavity of the shell.

Advantageous effects

The utility model provides a leveling mechanism for an overhead working truck. Compared with the prior art, the device has the following

The beneficial effects are that:

1. this overhead working truck leveling mechanism, in the leveling in-process, promote the slider through the bracing piece and slide to promote the piston through the push rod and remove in the inner tube is inside, thereby promote hydraulic oil and flow through logical groove round trip, form damping force to the piston through the frictional force between logical groove, spring and the hydraulic oil, make the vibration energy that produces change into fluid heat energy, distribute to the atmosphere, thereby reach the function that reduces vibrations, improve the stability of working bucket, reduce the emergence of incident.

2. This overhead working truck leveling mechanism, through the cooperation work of arc wall and steel ball, carries out supplementary buffering, limits the steel ball rolling range through the setting of arc wall, makes things convenient for the steel ball to roll and resumes the normal position after buffering simultaneously, and the setting through the elastic block conveniently assists pulling upper connecting plate and lower connecting plate and resets to the effect of improving equipment practicality has been reached.

Drawings

FIG. 1 is a schematic plan view of the present utility model;

FIG. 2 is a schematic perspective view of a shock absorbing device according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a shock absorbing device according to the present utility model;

fig. 4 is a schematic cross-sectional view of a shock strut according to the present utility model.

In the figure: 1. a base; 2. a rotary table; 3. a working bucket; 4. a support arm; 5. leveling means; 6. a damping device; 61. a base table; 62. a support table; 63. a chute; 64. a slide block; 65. a support rod; 66. a shock-absorbing column; 67. a reset block; 661. a housing; 662. an inner cylinder; 663. a through groove; 664. a support column; 665. a spring; 666. a piston; 667. a push rod; 668. an oil seal; 671. an upper connecting plate; 672. a lower connecting plate; 673. an arc-shaped groove; 674. steel balls; 675. and an elastic block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

referring to fig. 1 to 4, a leveling mechanism for an overhead working truck comprises a base 1 for supporting equipment, a rotary table 2 for providing lifting power is fixedly arranged on the upper surface of the base 1, one end of the rotary table 2 is provided with a support arm 4, one end of the support arm 4 is provided with a leveling device 5, the upper surface of the leveling device 5 is fixedly connected with a damping device 6 for damping and buffering, the upper surface of the damping device 6 is fixedly connected with a working bucket 3, the damping device 6 comprises a base table 61, the lower surface of the base table 61 is fixedly connected with the upper surface of the leveling device 5, a sliding groove 63 is formed on the upper surface of the base table 61, a damping column 66 for absorbing vibration force is fixedly connected with an inner cavity of the sliding groove 63, one end of the damping column 66 is fixedly connected with a sliding block 64 for sliding in the sliding groove 63, the surface of the sliding block 64 is slidingly connected with the inner cavity of the sliding groove 63, the surface of the sliding block 64 is hinged with a supporting rod 65, the upper end of the supporting rod 65 is hinged with a supporting table 62, the upper surface of the supporting table 62 is fixedly connected with the lower surface of the working bucket 3, the lower surface of the sliding groove 63 is fixedly connected with a reset block 67 for auxiliary buffering, the lower surface of the reset block 67 is fixedly connected with the upper surface of the bottom table 61, the shock absorption column 66 comprises a shell 661, the surface of the shell 661 is fixedly connected with the inside of the sliding groove 63, one end of an inner cavity of the shell 661 is fixedly connected with an inner cylinder 662, a through groove 663 is formed in the surface of the inner cylinder 662, the inner cavity surface of the inner cylinder 662 is fixedly connected with a spring 665, one end of the spring 665 is fixedly connected with a piston 666, the surface of the piston 666 is in sliding connection with the inner wall of the inner cylinder 662, one end of the push rod 667 extends to the outside of the shell 661 and is movably connected with the outer wall of the shell 661, one end of the push rod 667 is fixedly connected with the surface of the sliding block 64, damping oil is filled in the shell 661 and the inner cylinder 662, one end of the inner cylinder 662 is fixedly connected with a supporting column 664, and one end of the supporting column 664 is fixedly connected with the other end of the inner cavity of the shell 661.

In this embodiment, in the leveling process, the supporting rod 65 pushes the sliding block 64 to slide, so that the pushing rod 667 pushes the piston 666 to move inside the inner cylinder 662, so that hydraulic oil is pushed to flow back and forth through the through groove 663, and a damping force is formed on the piston 666 by friction force among the through groove 663, the spring 665 and the hydraulic oil, so that generated vibration energy is converted into oil thermal energy and emitted into the atmosphere, thereby achieving the function of reducing vibration, improving the stability of the working bucket 3, reducing the occurrence of safety accidents, supporting the inner cylinder 662 through the arrangement of the supporting column 664, and improving the installation stability of the inner cylinder 662.

Embodiment two:

referring to fig. 1-4, the present embodiment provides a technical solution based on the first embodiment: the reset block 67 includes an upper connection plate 671, the lower surface of the upper connection plate 671 is fixedly connected to the lower surface of the support table 62, the lower surface of the upper connection plate 671 is provided with a lower connection plate 672, the lower surface of the lower connection plate 672 is fixedly connected to the center of the upper surface of the bottom table 61, the lower surface of the upper connection plate 671 and the upper surface of the lower connection plate 672 are both provided with arc grooves 673, steel balls 674 are slidingly connected in the arc grooves 673, the upper surface of the lower connection plate 672 is provided with an elastic block 675, the upper surface of the elastic block 675 is arranged on the lower surface of the upper connection plate 671, the surface of the housing 661 is fixedly connected with an oil seal 668, and the surface of the oil seal 668 is slidingly connected to the side wall of the push rod 667.

In this embodiment, auxiliary buffering is performed through the cooperation of the arc-shaped groove 673 and the steel ball 674, the rolling range of the steel ball 674 is limited through the arrangement of the arc-shaped groove 673, meanwhile, the steel ball 674 is convenient to recover after rolling buffering, the upper connecting plate 671 and the lower connecting plate 672 are conveniently pulled to reset in an auxiliary manner through the arrangement of the elastic block 675, damping oil is sealed through the arrangement of the oil seal 668, and the damping oil is prevented from flowing out of the inside of the shell 661.

And all that is not described in detail in this specification is well known to those skilled in the art.

During operation, in the leveling process, the sliding block 64 is pushed to slide through the supporting rod 65, thereby pushing the piston 666 to move in the inner cylinder 662 through the pushing rod 667, thereby pushing hydraulic oil to flow back and forth through the through groove 663, the piston 666 is shifted to form damping force through friction force among the through groove 663, the spring 665 and the hydraulic oil, so that generated vibration energy is converted into oil heat energy and is emitted into the atmosphere, thereby achieving the function of reducing vibration, improving the stability of the working bucket 3, carrying out auxiliary buffering through the cooperation of the arc groove 673 and the steel ball 674, limiting the rolling range of the steel ball 674 through the arrangement of the arc groove 673, simultaneously facilitating the restoration of the original position after the rolling buffering of the steel ball 674, and conveniently assisting in pulling the reset of the upper connecting plate 671 and the lower connecting plate 672 through the arrangement of the elastic block 675.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an aerial working car leveling mechanism, includes base (1) that are used for supporting equipment, its characterized in that: the lifting device is characterized in that a rotary table (2) for providing lifting power is fixedly arranged on the upper surface of the base (1), a support arm (4) is arranged at one end of the rotary table (2), a leveling device (5) is arranged at one end of the support arm (4), a damping device (6) for damping and buffering is fixedly connected to the upper surface of the leveling device (5), and a working bucket (3) is fixedly connected to the upper surface of the damping device (6);

the damping device (6) comprises a base table (61), the lower surface fixed connection of base table (61) is at the upper surface of levelling device (5), spout (63) have been seted up to the upper surface of base table (61), the inner chamber fixedly connected with of spout (63) is used for absorbing shock-absorbing cylinder (66), the one end fixedly connected with of shock-absorbing cylinder (66) is used for at the gliding slider (64) in the inside of spout (63), the surface sliding connection of slider (64) is at the inner chamber of spout (63), the surface of slider (64) articulates there is bracing piece (65), the upper end of bracing piece (65) articulates there is brace table (62), the upper surface fixed connection of brace table (62) is at the lower surface of working fill (3), the lower surface fixed connection of spout (63) is used for supplementary buffering reset block (67), the lower surface fixed connection of reset block (67) is at the upper surface of base table (61).

2. The overhead working truck leveling mechanism of claim 1 wherein: the reset block (67) comprises an upper connecting plate (671), the lower surface of the upper connecting plate (671) is fixedly connected to the lower surface of the supporting table (62), the lower surface of the upper connecting plate (671) is provided with a lower connecting plate (672), the lower surface of the lower connecting plate (672) is fixedly connected to the center of the upper surface of the bottom table (61), arc-shaped grooves (673) are formed in the lower surface of the upper connecting plate (671) and the upper surface of the lower connecting plate (672), and steel balls (674) are connected to the inner parts of the arc-shaped grooves (673) in a sliding mode.

3. The overhead working truck leveling mechanism of claim 1 wherein: the shock-absorbing column (66) comprises a shell (661), the surface fixed connection of shell (661) is in the inside of spout (63), inner tube (662) are fixedly connected with to inner chamber one end of shell (661), logical groove (663) have been seted up on the surface of inner tube (662), inner tube surface fixed connection of inner tube (662) has spring (665), the one end fixedly connected with piston (666) of spring (665), the surface of piston (666) and the inner wall sliding connection of inner tube (662), the surface fixed connection of piston (666) has push rod (667), the one end of push rod (667) extends to the outside of shell (661) and with the outer wall swing joint of shell (661), the one end fixed connection of push rod (667) is at the surface of slider (64), the intussuseption of shell (661) and inner tube (662) is filled with damping oil.

4. An overhead working truck leveling mechanism according to claim 2 wherein: the upper surface of the lower connecting plate (672) is provided with an elastic block (675), and the upper surface of the elastic block (675) is arranged on the lower surface of the upper connecting plate (671).

5. A leveling mechanism for an overhead working truck according to claim 3 wherein: the surface of shell (661) is fixedly connected with oil blanket (668), the surface sliding connection of oil blanket (668) is on the lateral wall of push rod (667).

6. A leveling mechanism for an overhead working truck according to claim 3 wherein: one end of the inner cylinder (662) is fixedly connected with a support column (664), and one end of the support column (664) is fixedly connected with the other end of the inner cavity of the shell (661).