CN209837133U - Movable arm gravity counteracting mechanism of excavator - Google Patents
Movable arm gravity counteracting mechanism of excavator Download PDFInfo
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- CN209837133U CN209837133U CN201920425037.7U CN201920425037U CN209837133U CN 209837133 U CN209837133 U CN 209837133U CN 201920425037 U CN201920425037 U CN 201920425037U CN 209837133 U CN209837133 U CN 209837133U
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- 230000005484 gravity Effects 0.000 title claims abstract description 96
- 230000008602 contraction Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Operation Control Of Excavators (AREA)
Abstract
The utility model relates to an excavator specifically is a movable arm gravity of excavator offsets mechanism. The swing arm gravity counteracting arm is connected to the lower end of the swing arm, the swing arm gravity counteracting arm and the swing arm large arm form a lever type structure, a fulcrum of the lever type structure is a pin shaft position where the swing arm large arm is hinged to a frame platform, and a swing arm mechanism gravity counteracting counter weight is arranged on the swing arm gravity counteracting arm. The utility model discloses do not need extra drive mechanism, structural safety is high, and the maintenance cost is low, can increase at any time or reduce the counter weight and realize offsetting each other of swing arm mechanism gravity according to the operating mode is required, strong adaptability, the adjustment of also being convenient for can realize the swing arm mechanism and promote and the energy-conserving demand of the full operating mode that descends, and energy-conserving effect is obvious.
Description
Technical Field
The utility model relates to an excavator specifically is a movable arm gravity of excavator offsets mechanism.
Background
When the excavator is used for excavating, working conditions such as excavating, unloading and the like are required to be realized through ceaselessly lifting and descending the movable arm mechanism. However, the excavator's actuator has a very large mass, which requires a large amount of additional energy to overcome the additional weight, and thus a large amount of energy is consumed. In order to reduce such energy consumption, various energy-saving excavators, such as hybrid excavators and energy storage excavators, have been disclosed in the prior art. However, these energy-saving excavators have large application limitation and high failure rate, and cannot be widely popularized at present. Meanwhile, the excavator with the energy accumulator has the main principle that the energy accumulator is used for absorbing potential energy of descending of a movable arm, and the absorbed energy is released to the lifting of the movable arm to play a role in assisting the lifting of the movable arm, but the energy accumulator cannot adapt to other working conditions of the excavator, such as leveling work, slope cutting work, fine work and the like, due to the fact that the absorbed energy is too large, meanwhile, the energy accumulator also has some safety problems and can bring potential safety hazards, and the energy-saving excavators have the defects of being complex in structure, high in cost, difficult to maintain and the like at present.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a swing arm gravity offset mechanism of excavator, offset the arm through swing arm gravity, realize that part or whole offset excavator swing arm mechanism's gravity to realize that swing arm mechanism promotes and the energy-conserving demand of the full operating mode that descends.
The utility model provides a technical scheme that its technical problem adopted is:
a movable arm gravity counteracting mechanism of an excavator comprises a movable arm large arm, wherein the lower end of the movable arm large arm is connected with the movable arm gravity counteracting arm, the movable arm gravity counteracting arm and the movable arm large arm form a lever type structure, a fulcrum of the lever type structure is a pin shaft part of the movable arm large arm hinged with a frame platform, and a movable arm mechanism gravity counteracting counter weight is arranged on the movable arm gravity counteracting arm.
Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, beneficial effect is:
the energy-saving lifting mechanism has the advantages that an additional transmission mechanism is not needed, the structural safety is high, the maintenance cost is low, the gravity of the movable arm mechanism can be offset by increasing or reducing the counter weight at any time according to the working condition, the adaptability is strong, the adjustment is convenient, the full-working-condition energy-saving requirements of lifting and descending of the movable arm mechanism can be met, and the energy-saving effect is obvious.
Preferably, the present invention further provides:
the movable arm gravity counteraction arm comprises a fixed section and a movable section, one end of the fixed section is fixedly connected with the movable arm, the other end of the fixed section is hinged with the movable section, a first adjusting oil cylinder is hinged between the fixed section and the movable section, and the angle of the movable section of the movable arm gravity counteraction arm is adjusted through the expansion and contraction of the first adjusting oil cylinder.
The movable arm gravity counteraction arm comprises a fixed section and a movable section, one end of the fixed section is fixedly connected with the movable arm, the other end of the fixed section is hinged with the movable section, a first adjusting oil cylinder is hinged between the movable section and the movable arm, and the angle of the movable section of the movable arm gravity counteraction arm is adjusted through the expansion and contraction of the first adjusting oil cylinder.
The movable arm gravity counteraction arm comprises a fixed section, a movable section and a telescopic section, one end of the fixed section is fixedly connected with the movable arm, the other end of the fixed section is hinged with the movable section, a telescopic oil cylinder is arranged in the movable section, one end of the telescopic oil cylinder is connected with the movable section, the other end of the telescopic oil cylinder is connected with the telescopic section, and one end of the telescopic section is located in the movable section.
The movable arm gravity counteracting arm comprises a fixed section and a plurality of movable sections, and the movable sections are sequentially hinged; one end of the fixed section is fixedly connected with the movable arm, the other end of the fixed section is hinged with the first movable section, a second adjusting oil cylinder is hinged between every two adjacent movable sections, and the angle of the corresponding movable section is adjusted through the stretching of the second adjusting oil cylinder.
Drawings
Fig. 1 is a schematic diagram of the basic structure of the embodiment of the present invention;
FIG. 2 is a schematic structural view of embodiment 1;
FIG. 3 is a schematic structural view of example 2;
FIG. 4 is a schematic structural view of embodiment 3;
FIG. 5 is a schematic structural view of example 4;
in the figure: a frame platform 1; a boom 2; a pin shaft 3; a boom cylinder 4; a boom arm cylinder 5; a boom arm 6; a boom bucket cylinder 7; a bucket 8; a boom gravity compensation arm 9; an actuator weight counterbalance 10; a first adjusting cylinder 11; a boom gravity compensation arm fixing section 12; a movable arm gravity counteracting arm movable section 13; a hinge shaft 14; a telescopic cylinder 15; a boom gravity compensation boom telescoping section 16; a second adjusting cylinder 17; an actuator 18.
Detailed Description
The present invention will be described in detail with reference to the following embodiments shown in the drawings.
The basic structure form of the movable arm gravity offset mechanism of the excavator is shown in fig. 1, the movable arm mechanism 18 of the excavator is composed of a movable arm big arm 2, a pin shaft 3, a movable arm big arm oil cylinder 4, a movable arm small arm oil cylinder 5, a movable arm small arm 6, a movable arm bucket oil cylinder 7 and a bucket 8, in the basic structure, the lower end of the movable arm big arm 2 is connected with a movable arm gravity offset arm 9, the movable arm gravity offset arm 9 and the movable arm big arm 2 form a lever type structure, the fulcrum of the lever type structure is the pin shaft 3 position of the movable arm big arm 2 hinged with a frame platform 1, and the end part of the movable arm gravity offset arm 9 is provided with a movable arm mechanism gravity offset counterweight. The basic structure is convenient for the production and transformation of the existing excavator, is beneficial to utilizing the structure and reduces the manufacturing cost.
Based on the above basic structure, the following embodiments may be preferred:
in embodiment 1, as shown in fig. 2, the boom gravity counteracting arm 9 is composed of a boom gravity counteracting arm fixed section 12 and a boom gravity counteracting arm movable section 13, one end of the boom gravity counteracting arm fixed section 12 is fixedly connected to the boom arm 2, the other end of the boom gravity counteracting arm fixed section 12 is hinged to the boom gravity counteracting arm movable section 13 through a hinge shaft 14, a first adjusting cylinder 11 is hinged between the boom gravity counteracting arm fixed section 12 and the boom gravity counteracting arm movable section 13, and the angle of the boom gravity counteracting arm movable section 13 is adjusted by the expansion and contraction of the first adjusting cylinder 11, so that the boom mechanism gravity counteracting counterweight 10 is raised or lowered. The embodiment 1 can better meet the energy-saving requirement of the excavator under various working conditions, and can meet the requirement on the height of the excavator during working and transportation.
Embodiment 2, as shown in fig. 3, is different from embodiment 1 in that both ends of the first adjusting cylinder 11 are respectively hinged between the boom 2 and the boom gravity counteracting arm moving section 13, and this structure can shorten the size of the boom gravity counteracting arm fixing section 12, so that the structure is more compact, and at the same time, the angle adjusting range of the boom gravity counteracting arm moving section 13 is facilitated.
In embodiment 3, as shown in fig. 4, the boom gravity counteracting arm 9 is composed of three sections, namely a boom gravity counteracting arm fixed section 12, a boom gravity counteracting arm movable section 13, and a boom gravity counteracting arm telescopic section 16, one end of the boom gravity counteracting arm fixed section 12 is fixedly connected to the boom big arm 2, the other end of the boom gravity counteracting arm fixed section 12 is hinged to the boom gravity counteracting arm movable section 13, a first adjusting cylinder 11 is hinged between the boom gravity counteracting arm fixed section 12 and the boom gravity counteracting arm movable section 13, a telescopic cylinder 15 is arranged in the boom gravity counteracting arm movable section 13, one end of the telescopic cylinder 15 is connected to the boom gravity counteracting arm movable section 13, the other end of the telescopic cylinder 15 is connected to the boom gravity counteracting arm telescopic section 16, and one end of the gravity counteracting arm telescopic section 16 is located in the boom gravity counteracting arm movable section 13. In embodiment 3, the height of the boom gravity compensation arm 9 and the boom gravity compensation weight 10 can be adjusted by the first adjustment cylinder 11, and the position of the boom gravity compensation weight 10 can be axially adjusted by the telescopic cylinder 15, thereby enhancing the general performance of the excavator.
Embodiment 4, as shown in fig. 5, the boom gravity counteracting arm 9 is composed of three sections, namely, a boom gravity counteracting arm fixed section 12, a boom gravity counteracting arm first movable section 13a, and a boom gravity counteracting arm second movable section 13b, one end of the boom gravity counteracting arm fixed section 12 is fixedly connected to the boom arm 2, the other end of the boom gravity counteracting arm fixed section 12 is hinged to the boom gravity counteracting arm first movable section 13a, and the boom gravity counteracting arm first movable section 13a is hinged to the boom gravity counteracting arm second movable section 13 b; a first adjusting oil cylinder 11 is hinged between the movable arm gravity counteracting arm fixed section 12 and the movable arm gravity counteracting arm first movable section 13a, a second adjusting oil cylinder 17 is hinged between the movable arm gravity counteracting arm first movable section 13a and the movable arm gravity counteracting arm second movable section 13b, the angle of the movable arm gravity counteracting arm first movable section 13a and the angle of the whole movable section behind the movable arm gravity counteracting arm first movable section 13a are adjusted through the stretching of the first adjusting oil cylinder 11, and the angle of the movable arm gravity counteracting arm second movable section 13b is adjusted through the stretching of the second adjusting oil cylinder 17. Embodiment 4 can not only adjust the height of the main body part of the boom gravity compensation arm 9 through the first adjustment cylinder 11, but also adjust the height of the boom gravity compensation counterweight 10 through the second adjustment cylinder 17 alone, thereby enhancing the energy saving requirement of the excavator under more different working conditions.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (5)
1. The utility model provides a movable arm gravity offset mechanism of excavator, includes the big arm of movable arm, its characterized in that: the lower end of the movable arm big arm is connected with a movable arm gravity counteracting arm, the movable arm gravity counteracting arm and the movable arm big arm form a lever type structure, a fulcrum of the lever type structure is a pin shaft part hinged with the movable arm big arm and the frame platform, and a movable arm mechanism gravity counteracting counter weight is arranged on the movable arm gravity counteracting arm.
2. The boom gravity cancellation mechanism of an excavator according to claim 1, wherein: the movable arm gravity counteraction arm comprises a fixed section and a movable section, one end of the fixed section is fixedly connected with the movable arm, the other end of the fixed section is hinged with the movable section, a first adjusting oil cylinder is hinged between the fixed section and the movable section, and the angle of the movable section of the movable arm gravity counteraction arm is adjusted through the expansion and contraction of the first adjusting oil cylinder.
3. The boom gravity cancellation mechanism of an excavator according to claim 1, wherein: the movable arm gravity counteraction arm comprises a fixed section and a movable section, one end of the fixed section is fixedly connected with the movable arm, the other end of the fixed section is hinged with the movable section, a first adjusting oil cylinder is hinged between the movable section and the movable arm, and the angle of the movable section of the movable arm gravity counteraction arm is adjusted through the expansion and contraction of the first adjusting oil cylinder.
4. The boom gravity cancellation mechanism of an excavator according to claim 1, wherein: the movable arm gravity counteraction arm comprises a fixed section, a movable section and a telescopic section, one end of the fixed section is fixedly connected with the movable arm, the other end of the fixed section is hinged with the movable section, a telescopic oil cylinder is arranged in the movable section, one end of the telescopic oil cylinder is connected with the movable section, the other end of the telescopic oil cylinder is connected with the telescopic section, and one end of the telescopic section is located in the movable section.
5. The boom gravity cancellation mechanism of an excavator according to claim 1, wherein: the movable arm gravity counteracting arm comprises a fixed section and a plurality of movable sections, and the movable sections are sequentially hinged; one end of the fixed section is fixedly connected with the movable arm, the other end of the fixed section is hinged with the first movable section, a second adjusting oil cylinder is hinged between every two adjacent movable sections, and the angle of the corresponding movable section is adjusted through the stretching of the second adjusting oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425037.7U CN209837133U (en) | 2019-04-01 | 2019-04-01 | Movable arm gravity counteracting mechanism of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425037.7U CN209837133U (en) | 2019-04-01 | 2019-04-01 | Movable arm gravity counteracting mechanism of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209837133U true CN209837133U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920425037.7U Withdrawn - After Issue CN209837133U (en) | 2019-04-01 | 2019-04-01 | Movable arm gravity counteracting mechanism of excavator |
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| Country | Link |
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| CN (1) | CN209837133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797791A (en) * | 2019-04-01 | 2019-05-24 | 董志强 | The swing arm gravity of excavator offsets mechanism |
-
2019
- 2019-04-01 CN CN201920425037.7U patent/CN209837133U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797791A (en) * | 2019-04-01 | 2019-05-24 | 董志强 | The swing arm gravity of excavator offsets mechanism |
| CN109797791B (en) * | 2019-04-01 | 2024-05-28 | 董志强 | Swing arm gravity counteracting mechanism of excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191224 Effective date of abandoning: 20240528 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191224 Effective date of abandoning: 20240528 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |