CN205348248U - Adopt variable area hydraulic accumulator's balanced type swing arm economizer system - Google Patents
Adopt variable area hydraulic accumulator's balanced type swing arm economizer system Download PDFInfo
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- CN205348248U CN205348248U CN201521045805.4U CN201521045805U CN205348248U CN 205348248 U CN205348248 U CN 205348248U CN 201521045805 U CN201521045805 U CN 201521045805U CN 205348248 U CN205348248 U CN 205348248U
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- hydraulic cylinder
- variable area
- swing arm
- balance hydraulic
- rear end
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Abstract
The utility model discloses an adopt variable area hydraulic accumulator's balanced type swing arm economizer system, including first balanced hydraulic pressure jar and the balanced hydraulic pressure jar of second, the no rod end of first balanced hydraulic pressure jar and the no rod end intercommunication of the balanced hydraulic pressure jar of second, the have rod end and the rod end that has of the balanced hydraulic pressure jar of second of first balanced hydraulic pressure jar feed through, no rod end and the no rod end intercommunication variable area hydraulic accumulator of the balanced hydraulic pressure jar of second, adjustable overflow valve and the manometer of first balanced hydraulic pressure jar, variable area hydraulic accumulator includes the casing, is equipped with elastic diaphragm in the casing, and the elastic diaphragm below is equipped with the push rod that has the inclined plane, and the push rod is connected with the piston, adjustable overflow valve connection oil tank. The utility model discloses can stabilize additional force for the swing arm provides, realize that the high efficiency of recovered energy is recycled.
Description
Technical field
This utility model belongs to mechanical field, particularly relates to a kind of balanced type swing arm energy conserving system adopting variable area hydraulic accumulator.
Background technology
Hydraulic crawler excavator is in the course of the work, it is frequent that swing arm swings up and down comparison, hydraulic digger operating device Heavy Weight, inertia are big, produce to be emptied for preventing boom cylinder epicoele too fast because swing arm declines, speed governing is carried out typically via main valve throttling, but during retarding braking, the substantial amounts of potential energy overwhelming majority of equipment is converted into heat energy at main valve restriction, not only causes energy dissipation, also results in system temperature rising and the reduction in hydraulic component life-span.
Section hydraulic excavator arranges energy storage equipment to solve the problems referred to above, but the equilibrant that its energy-storage hydraulic cylinder provides all can change by a relatively large margin, and excavator swing arm to transfer the power of institute's feedback relative stable with the required power that rises, system capacity organic efficiency and system stationarity are all further improved: when swing arm declines, along with accumulator supercharging pressure is gradually increased, the equilibrant of energy-storage hydraulic cylinder is transitioned into greatly from little.When initial topping up, the pressure of accumulator is less, and considerable part potential energy is converted into heat energy by throttling；When swing arm rises, accumulator tapping pressure is gradually reduced, and the auxiliary force that energy-storage hydraulic cylinder provides reduces by a relatively large margin, and the power of former boom cylinder increases accordingly.
Utility model content
For solving the problems referred to above, this utility model provides a kind of balanced type swing arm energy conserving system adopting variable area hydraulic accumulator.This utility model have employed variable area hydraulic accumulator, it is ensured that the pressure in accumulator is basically unchanged, even if swing arm decline process balances hydraulic cylinder power output is basicly stable, improves energy recovery efficiency and system stationarity；When swing arm rises, under the effect of variable area hydraulic accumulator steady pressure, balance hydraulic cylinder piston stretches out, and provides for swing arm and stablizes additional force, reduces the power output of boom cylinder, it is achieved the efficient recycling recovered energy.
For reaching above-mentioned technique effect, the technical solution of the utility model is:
A kind of balanced type swing arm energy conserving system adopting variable area hydraulic accumulator, including the first balance hydraulic cylinder and the second balance hydraulic cylinder；The rear end of the first balance hydraulic cylinder and the rear end connection of the second balance hydraulic cylinder, the rod end of the first balance hydraulic cylinder and the rod end connection of the second balance hydraulic cylinder；The rear end of the first balance hydraulic cylinder and the rear end of the second balance hydraulic cylinder are hinged on the bearing pin of excavator swing arm, and the rod end of the first balance hydraulic cylinder and the rod end of the second balance hydraulic cylinder are hinged on the bearing pin of excavator turntable；The rear end of the first balance hydraulic cylinder and the rear end connection variable area hydraulic accumulator of the second balance hydraulic cylinder, adjustable overflow valve and Pressure gauge；Described variable area hydraulic accumulator includes housing, is provided with elastic diaphragm in housing, and elastic diaphragm is connected with the push rod with inclined plane, and push rod is connected to piston；Being pressure regulating cavity between elastic diaphragm and piston, pressure regulating cavity is communicated with low-pressure reservoir；For connection chamber below piston, connection chamber connects the rear end of the first balance hydraulic cylinder and the rear end of the second balance hydraulic cylinder；Adjustable overflow valve connects fuel tank.
Further improving, described push rod connects piston by connecting rod.
Further improving, described push rod is hemispherical.
This utility model, in swing arm decline accumulation of energy process, have employed variable area hydraulic accumulator, it is ensured that the pressure in accumulator is basically unchanged, even if swing arm decline process balances hydraulic cylinder power output is basicly stable, improves energy recovery efficiency and system stationarity；When swing arm rises, under the effect of variable area hydraulic accumulator steady pressure, balance hydraulic cylinder piston stretches out, and provides for swing arm and stablizes additional force, reduces the power output of boom cylinder, it is achieved the efficient recycling recovered energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of variable area hydraulic accumulator.
Detailed description of the invention
Embodiment 1
A kind of balanced type swing arm energy conserving system adopting variable area hydraulic accumulator as shown in Figure 1, including the first balance hydraulic cylinder 4 and the second balance hydraulic cylinder 6；The rear end of the first balance hydraulic cylinder 4 and the rear end connection of the second balance hydraulic cylinder 6, the rod end of the first balance hydraulic cylinder 4 and the rod end connection of the second balance hydraulic cylinder 6；The rear end of the first balance hydraulic cylinder 4 and the rear end of the second balance hydraulic cylinder 6 are hinged on the bearing pin of excavator swing arm, and the rod end of the first balance hydraulic cylinder 4 and the rod end of the second balance hydraulic cylinder 6 are hinged on the bearing pin of excavator turntable；The rear end of the first balance hydraulic cylinder 4 and the rear end connection variable area hydraulic accumulator 3 of the second balance hydraulic cylinder 6, adjustable overflow valve 1 and Pressure gauge 2.The former boom cylinder 5 of hydraulic crawler excavator is installed in original mode, will not be subject to the impact of native system.
As in figure 2 it is shown, variable area hydraulic accumulator 3 includes housing 31, being provided with elastic diaphragm 32 in housing 31, elastic diaphragm 32 is connected with the push rod 34 with inclined plane, and push rod 34 is connected to piston 33；Adjustable overflow valve 1 connects fuel tank.Being pressure regulating cavity 36 between elastic diaphragm 32 and piston 33, pressure regulating cavity 36 is communicated with low-pressure reservoir；For connection chamber 37 below piston 33, connection chamber 37 connects the rear end of the first balance hydraulic cylinder 4 and the rear end of the second balance hydraulic cylinder 6.Push rod 34 connects piston 33 by connecting rod 35.Push rod 34 is hemispherical.Push rod 34 also can be replaced inverted truncated cone etc., and other has the shape of inclined plane.
Principle of the present utility model is that piston 33 is under pressure, and drives and moves on push rod 34, and elasticity of compression barrier film 32 makes the pressure of elastic diaphragm 32 superjacent air space increase, carries out accumulation of energy.Being wrapped up gradually by elastic diaphragm 32 while push rod 34 elasticity of compression barrier film 32, the contact surface of elastic diaphragm 32 and push rod 34 sidewall gives push rod 34 power obliquely, to offset the partial elastic barrier film 32 pressure to push rod 34 upper surface.Along with push rod 34 progressively elasticity of compression barrier film 32, it is more deep to be absorbed in elastic diaphragm 32, gives push rod 34 power obliquely more big, and namely along with the increase of pressure, the effective pressure area of push rod 34 is tapered into by elastic diaphragm 32, thus maintaining the stability to piston 33 thrust.During pressure regulating cavity 36 pressurized, volume reduces, and makes the past low-pressure reservoir of hydraulic oil (or other liquid or gas etc.) circulation of inside；Make elastic diaphragm 32 can carry out deformation simultaneously.
It is as follows that this swing arm energy conserving system realizes energy-conservation specific works principle:
1, energy conserving system is closed
When boom cylinder shrinks completely, making the opening standard-sized sheet of adjustable overflow valve 1, energy conserving system is closed.
2, energy conserving system is in opening
(1) transfer
When swing arm is transferred, the piston retraction of balance hydraulic cylinder, by rodless cavity hydraulic oil supercharging and by cartridge storage in variable area hydraulic accumulator 3, variable area hydraulic accumulator 3 topping up but pressure are basically unchanged, it is achieved the high efficiente callback of energy and ensure the stationarity of system.
(2) rise
When swing arm rises, variable area accumulator 3 discharges stable high voltage hydraulic oil and delivers to balance hydraulic cylinder rodless cavity by pipeline, and auxiliary force is stablized in the rising offer for swing arm, it is achieved the efficient recycling recovered energy.
The explanation of above example is only intended to help to understand core concept of the present utility model；Simultaneously for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this specification content should not be construed as restriction of the present utility model.
Claims (3)
1. the balanced type swing arm energy conserving system adopting variable area hydraulic accumulator, it is characterised in that include the first balance hydraulic cylinder (4) and the second balance hydraulic cylinder (6)；The rear end of the first balance hydraulic cylinder (4) and the rear end connection of the second balance hydraulic cylinder (6), the rod end of the first balance hydraulic cylinder (4) and the rod end connection of the second balance hydraulic cylinder (6)；The rear end of the first balance hydraulic cylinder (4) and the rear end of the second balance hydraulic cylinder (6) are hinged on the bearing pin of excavator swing arm, and the rod end of the first balance hydraulic cylinder (4) and the rod end of the second balance hydraulic cylinder (6) are hinged on the bearing pin of excavator turntable；The rear end of the first balance hydraulic cylinder (4) and rear end connection variable area hydraulic accumulator (3) of the second balance hydraulic cylinder (6), adjustable overflow valve (1) and Pressure gauge (2)；Described variable area hydraulic accumulator (3) includes housing (31), elastic diaphragm (32) it is provided with in housing (31), elastic diaphragm (32) is connected with the push rod (34) with inclined plane, and push rod (34) is connected to piston (33)；It is pressure regulating cavity (36) between elastic diaphragm (32) and piston (33), pressure regulating cavity (36) connection low-pressure reservoir；Piston (33) lower section is connection chamber (37), and connection chamber (37) connects the rear end of the first balance hydraulic cylinder (4) and the rear end of the second balance hydraulic cylinder (6)；Adjustable overflow valve (1) connects fuel tank.
2. the balanced type swing arm energy conserving system adopting variable area hydraulic accumulator as claimed in claim 1, it is characterised in that described push rod (34) connects piston (33) by connecting rod (35).
3. the balanced type swing arm energy conserving system adopting variable area hydraulic accumulator as claimed in claim 1, it is characterised in that described push rod (34) is hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521045805.4U CN205348248U (en) | 2015-12-15 | 2015-12-15 | Adopt variable area hydraulic accumulator's balanced type swing arm economizer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521045805.4U CN205348248U (en) | 2015-12-15 | 2015-12-15 | Adopt variable area hydraulic accumulator's balanced type swing arm economizer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205348248U true CN205348248U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521045805.4U Expired - Fee Related CN205348248U (en) | 2015-12-15 | 2015-12-15 | Adopt variable area hydraulic accumulator's balanced type swing arm economizer system |
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| Country | Link |
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| CN (1) | CN205348248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401607A (en) * | 2015-12-15 | 2016-03-16 | 福建工程学院 | Balanced type movable arm energy-saving system with variable-area hydraulic energy accumulator |
-
2015
- 2015-12-15 CN CN201521045805.4U patent/CN205348248U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401607A (en) * | 2015-12-15 | 2016-03-16 | 福建工程学院 | Balanced type movable arm energy-saving system with variable-area hydraulic energy accumulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20181215 |