CN220521450U

CN220521450U - Novel excavator energy-saving device and excavator

Info

Publication number: CN220521450U
Application number: CN202321575411.4U
Authority: CN
Inventors: 李勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2024-02-23
Anticipated expiration: 2033-06-20

Abstract

The utility model discloses a novel excavator energy-saving device and an excavator, wherein a counterweight chamber is arranged on the other side of an excavator body, a counterweight block is arranged in the counterweight chamber, a counterweight oil cylinder is connected below the counterweight block, a first rod cavity is arranged in the counterweight oil cylinder, and a first rodless cavity is arranged below the first rod cavity. When the weight of the balancing weight acts on the piston rod in the weight balancing cylinder, the pressure oil of the weight balancing cylinder acts on the second rodless cavity, so that the second rodless cavity has an upward thrust to offset the downward weight of the movable arm, the bucket rod and the bucket rod, when the movable arm needs to be lifted upwards, the weight balancing weight acts on the piston rod in the weight balancing cylinder downwards, the weight balancing cylinder generates the pressure oil to offset the dead weights of the movable arm, the bucket rod and the bucket rod, and the dead weight of the working device is not needed to be lifted by redundant power load in working hours of the excavator. Thereby reducing the energy consumption and achieving the purposes of energy conservation and consumption reduction.

Description

Novel excavator energy-saving device and excavator

Technical Field

The utility model relates to the technical field of excavators, in particular to a novel energy-saving device of an excavator and the excavator.

Background

The excavator is an earth machine which uses a bucket to excavate materials higher or lower than a bearing surface and is filled into a transport vehicle or unloaded to a storage yard, the excavated materials mainly comprise soil, coal, silt and soil and rock after pre-loosening, the excavator is an irreplaceable machine in various construction industries, but when the excavator works, a great deal of energy sources are required to be consumed, so that the excavator is convenient to operate and safe to operate in order to save energy consumption and reduce environmental pollution, and the energy conservation and consumption reduction of the excavator are also continuously researched, so that the excavator is used for novel energy-saving devices and the excavator.

When the existing excavator works, the movable arm mechanism is required to drive the bucket rod and the bucket to lift and descend continuously to realize normal work of the excavator, however, the movable arm, the bucket rod and the bucket mechanism of the excavator are very heavy, so that a working device of the excavator needs to consume a large amount of energy each time of lifting so as to overcome the dead weight of the excavator, and more energy is wasted, and therefore, the novel excavator energy-saving device and the excavator are provided.

Disclosure of Invention

The utility model aims to provide a novel energy-saving device for an excavator and the excavator, which aim to solve the problems that in the prior art, as the prior excavator needs a movable arm mechanism to drive a bucket rod and a bucket to continuously lift and descend to realize normal work of the excavator, the weight of the movable arm, the bucket rod and the bucket mechanism of the excavator is large, so that a large amount of energy is consumed for each lifting of a working device of the excavator to overcome the self weight, and more energy is wasted.

In order to achieve the above purpose, the present utility model provides the following technical solutions: novel excavator energy-saving device and excavator include:

the excavator comprises an excavator body, wherein a movable arm oil cylinder is arranged on one side of the excavator body, a movable arm is connected to the upper side of the movable arm oil cylinder, a counterweight chamber is arranged on the other side of the excavator body, a counterweight block is arranged in the counterweight chamber, a counterweight oil cylinder is connected to the lower side of the counterweight block, a first rod cavity is arranged in the counterweight oil cylinder, and a first rodless cavity is arranged below the first rod cavity;

the connecting pipeline is arranged below the counterweight oil cylinder and the movable arm oil cylinder, and the middle parts of the counterweight oil cylinder and the movable arm oil cylinder are connected with a multi-way valve;

the second rodless cavity is arranged in the movable arm oil cylinder, and a second rod cavity is arranged above the second rodless cavity.

Preferably, a telescopic structure is formed between the counterweight cylinder and the counterweight block, and the counterweight block is matched with the cross section size of the counterweight chamber.

Preferably, a telescopic structure is formed between the movable arm oil cylinder and the movable arm, and the movable arm is movably connected with the excavator body.

Preferably, the size of the inner cavity of the counterweight cylinder is equal to the sum of the sizes of the first rod-shaped cavity and the first rod-free cavity, and the size of the inner cavity of the movable arm cylinder is equal to the sum of the sizes of the second rod-free cavity and the second rod-shaped cavity.

Preferably, the first rodless cavity is communicated with the second rodless cavity through a pipeline, and the first rod cavity is connected with the second rod cavity through a connecting pipeline and a multi-way valve.

An excavator, comprising: the movable arm is characterized in that a bucket rod is arranged on one side of the movable arm, and a bucket is connected below the bucket rod.

Compared with the prior art, the utility model provides the novel energy-saving device for the excavator and the excavator, which have the following beneficial effects:

when the weight of the balancing weight acts on the piston rod in the balancing weight oil cylinder, the pressure oil of the balancing weight oil cylinder acts on the second rodless cavity, so that the second rodless cavity has an upward thrust to offset the downward weight of the movable arm, the bucket rod and the bucket rod, and the self-weight lifting of the working device does not need to be carried out excessively when the excavator works, thereby achieving the purposes of saving oil and reducing energy and avoiding the problem that the conventional excavator needs to drive the bucket rod and the bucket to realize the normal work of the excavator through continuous lifting and descending when the excavator works, however, the weight of the movable arm, the bucket rod and the bucket mechanism of the excavator is very large, so that the working device of the excavator needs to consume a large amount of energy to overcome the self-weight every time, and the problem of consuming more energy is wasted.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a connection structure of a counterweight cylinder and a boom cylinder according to the present utility model;

fig. 3 is a schematic diagram of a connection structure between a counterweight chamber and a counterweight in a second embodiment of the utility model.

In the figure: 1. an excavator body; 2. a movable arm; 3. a bucket rod; 4. a bucket; 5. a boom cylinder; 6. a counterweight chamber; 7. balancing weight; 8. a counterweight cylinder; 9. a first rod-shaped cavity; 10. a first rodless cavity; 11. a connecting pipe; 12. a multiway valve; 13. a second rodless cavity; 14. the second has a rod cavity.

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.

1-2, a novel energy-saving device for an excavator includes: the excavator comprises an excavator body 1, wherein a movable arm oil cylinder 5 is arranged on one side of the excavator body 1, a movable arm 2 is connected above the movable arm oil cylinder 5, a telescopic structure is formed between the movable arm oil cylinder 5 and the movable arm 2, and the movable arm 2 is movably connected with the excavator body 1; the movable arm oil cylinder 5 can drive the movable arm 2 to lift through the expansion of the movable arm oil cylinder, so that the lifting operation of the excavator is facilitated; the other side of the excavator body 1 is provided with a counterweight chamber 6, a counterweight 7 is arranged in the counterweight chamber 6, a counterweight oil cylinder 8 is connected below the counterweight 7, a first rod cavity 9 is arranged in the counterweight oil cylinder 8, a telescopic structure is formed between the counterweight oil cylinder 8 and the counterweight 7, and the cross section size of the counterweight 7 is matched with that of the counterweight chamber 6; the counterweight cylinder 8 can drive the counterweight 7 to lift, so that the counterweight 7 can carry out counterweight work on the excavator to ensure the working stability of the excavator; a boom 2, wherein an arm 3 is arranged on one side of the boom 2, and a bucket 4 is connected below the arm 3; a first rodless cavity 10 is arranged below the first rod cavity 9; a connecting pipe 11 installed between the counterweight cylinder 8 and the boom cylinder 5, the connecting pipe 11, a second rodless cavity 13 provided inside the boom cylinder 5, and a second rod cavity 14 provided above the second rodless cavity 13; the size of the inner cavity of the counterweight cylinder 8 is equal to the sum of the sizes of the first rod-shaped cavity 9 and the first rod-free cavity 10, and the size of the inner cavity of the movable arm cylinder 5 is equal to the sum of the sizes of the second rod-free cavity 13 and the second rod-shaped cavity 14; the first rodless cavity 10 is communicated with the second rodless cavity 13 through the connecting pipeline 11, so that when the piston rod of the balancing weight 7, which is acted in the balancing weight oil cylinder 8 by gravity, enables the pressure oil of the balancing weight oil cylinder 8 to act on the second rodless cavity 13, and enables the second rodless cavity 13 to have an upward thrust to offset the downward weight of the movable arm 2, the bucket rod 3 and the bucket 4, so that the excavator does not need the lifting of the dead weight of the redundant power load working device during working, thereby reducing the energy consumption and achieving the purposes of energy conservation and consumption reduction.

Referring to fig. 3, in the second embodiment, nitrogen springs are added to two sides above the counterweight 7 on the basis of the first embodiment, when the excavator works to lift the boom 2, the counterweight 7 applies downward force of the springs, so that the weight of the counterweight 7 and the downward force of the springs are approximately equal to the weights of the boom 2, the arm 3 and the bucket 4, and the counterweight cylinder 8 and the pipeline 11 act on the rodless cavity 13 to provide an upward thrust force to the boom cylinder 5 so as to offset the weight of the boom 2 and the bucket 4 of the arm 3, thereby reducing energy loss during lifting of the excavator movable arm, achieving the purposes of saving energy and reducing consumption, and avoiding the difficulty in offsetting the weights of the boom 2, the arm 3 and the bucket 4 by self gravity when the weight of the counterweight 7 is insufficient due to the reasons of volume and the like.

Working principle: when the novel excavator energy-saving device and the excavator are used, firstly, when the excavator body 1 works, hydraulic oil is conveyed into a pipeline from a hydraulic oil tank through a hydraulic pump, then pressure oil is injected into a first rod cavity 9 through a multi-way valve 12, so that the pressure of the first rod cavity 10 is increased, hydraulic oil in the first rod cavity 10 is conveyed into a second rod cavity 13 through a connecting pipeline 11, at the moment, a piston rod in a movable arm oil cylinder 5 is pushed to rise, meanwhile, a movable arm 2, a bucket rod 3 and a bucket 4 are driven to rise, meanwhile, the gravity of a balancing weight 7 acts on the piston rod in a balancing weight oil cylinder 8, the pressure oil of the balancing weight oil cylinder 8 acts on the second rod cavity 13, the second rod cavity 13 has an upward thrust, the thrust can offset the downward weights of the movable arm 2, the bucket rod 3 and the bucket 4, and the self-weight of the excavator is not required to be lifted by an unnecessary power load working device, so that the energy consumption is reduced, and the energy consumption is reduced. When the multi-way valve 12 injects hydraulic oil into the second rod cavity 14, the piston rod in the second rod cavity 14 descends, hydraulic oil in the second rodless cavity 13 is conveyed into the first rodless cavity 10 through the connecting pipeline 11, and at the moment, the hydraulic rod in the first rod cavity 9 pushes the balancing weight 7 to ascend and return to complete lifting work of the movable arm 2 once. The nitrogen springs can be added to the two sides above the balancing weight 7 according to the need, when the balancing weight 7 is insufficient in weight due to the volume and the like, the balancing weight 7 is given a downward acting force through the elasticity of the nitrogen springs, so that the weight of the balancing weight 7 plus the downward acting force of the springs is approximately equal to the weight of the movable arm 2, the bucket rod 3 and the bucket 4, and the situation that the weight of the movable arm 2, the bucket rod 3 and the bucket 4 is difficult to offset through the gravity of the balancing weight 7 due to insufficient weight of the balancing weight 7 in special situations is avoided. When the excavator work movable arm 2 is lifted, the balancing weight 7 applies downward acting force of a spring, and the upward thrust is acted on the rodless cavity 13 through the balancing weight oil cylinder 8 and the pipeline 11 to the movable arm oil cylinder 5, so that the dead weights of the movable arm 2 and the bucket arm 3 and the bucket 4 are counteracted, the energy loss during lifting of the excavator work movable arm is reduced, and the purposes of energy conservation and consumption reduction are achieved.

This is the work principle of this novel excavator economizer and excavator.

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 a novel excavator energy-saving device which characterized in that includes:

the excavator comprises an excavator body (1), wherein a movable arm oil cylinder (5) is arranged on one side of the excavator body (1), a movable arm (2) is connected to the upper side of the movable arm oil cylinder (5), a counterweight chamber (6) is arranged on the other side of the excavator body (1), a counterweight block (7) is arranged in the counterweight chamber (6), a counterweight oil cylinder (8) is connected to the lower side of the counterweight block (7), a first rod cavity (9) is arranged in the counterweight oil cylinder (8), and a first rodless cavity (10) is arranged below the first rod cavity (9);

the connecting pipeline (11) is arranged below the counterweight oil cylinder (8) and the movable arm oil cylinder (5), and the middle parts of the counterweight oil cylinder (8) and the movable arm oil cylinder (5) are connected with a multi-way valve;

and a second rodless cavity (13) which is arranged in the movable arm oil cylinder (5), and a second rod cavity (14) is arranged above the second rodless cavity (13).

2. The novel energy-saving device for the excavator according to claim 1, wherein a telescopic structure is formed between the counterweight cylinder (8) and the counterweight (7), and the cross section size of the counterweight (7) is matched with that of the counterweight chamber (6).

3. The novel energy-saving device for the excavator according to claim 1, wherein a telescopic structure is formed between the movable arm oil cylinder (5) and the movable arm (2), and the movable arm (2) is movably connected with the excavator body (1).

4. The novel energy-saving device for the excavator according to claim 1, wherein the size of the inner cavity of the counterweight cylinder (8) is equal to the sum of the sizes of the first rod-shaped cavity (9) and the first rod-free cavity (10), and the size of the inner cavity of the movable arm cylinder (5) is equal to the sum of the sizes of the second rod-free cavity (13) and the second rod-shaped cavity (14).

5. The novel energy-saving device for the excavator according to claim 1, wherein the first rodless cavity (10) is communicated with the second rodless cavity (13) through a connecting pipeline (11), and the first rod cavity (9) is connected with the multi-way valve (12) and the second rod cavity (14) through pipelines.

6. The novel energy-saving device for the excavator according to claim 1, wherein nitrogen springs are arranged on two sides above the balancing weight (7), and the nitrogen springs can increase downward acting force for the balancing weight (7).

7. An excavator, comprising: the movable arm (2), arm (3) are installed to one side of movable arm (2), and the below of arm (3) is connected with scraper bowl (4).