CN202706092U - Excavator quartering hammer cantilever damping connection arm - Google Patents
Excavator quartering hammer cantilever damping connection arm Download PDFInfo
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- CN202706092U CN202706092U CN 201220140672 CN201220140672U CN202706092U CN 202706092 U CN202706092 U CN 202706092U CN 201220140672 CN201220140672 CN 201220140672 CN 201220140672 U CN201220140672 U CN 201220140672U CN 202706092 U CN202706092 U CN 202706092U
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Abstract
The utility model discloses an excavator quartering hammer cantilever damping connection arm which comprises a damping device. The damping device comprises two sections of piston type casings which are in serial connection and a hydraulic nitrogen accumulator, wherein an annular rubber body and a hydraulic oil cylinder are arranged in the first section of piston type casing, the hydraulic oil cylinder is arranged in the ring center of the annular rubber body, a hydraulic oil cylinder body and a piston rod are respectively fixed at two ends of the first section of piston type casing, the hydraulic oil cylinder is hydraulically connected with an externally-arranged liquid nitrogen accumulator through an oil pipe, and a spring is positioned in the second section of piston type casing. Due to three-level joint damping design, vibration of an excavator quartering hammer in operation is effectively reduced, an excavator body is stable, vibration noise is small, an excavator is protected, fault rate of the excavator is reduced, and the service life of the excavator is prolonged.
Description
Technical field
The invention belongs to the constructional engineering machinery field, particularly relate to a kind of digging machine disintegrating hammer cantilever damping linking arm.
Background technology
The crushing function of excavator is that the maximum of excavator outside its data mining duty expanded, use face is more and more wider, mainly undertake the tasks such as urban renewal, road rebuilding, dilapidated house dismounting, national defense construction and post-disaster reconstruction, in nation-building, play very important effect.The mechanical shock that excavator produces when crushing operation not only apparatus for work, hydraulic system, motor and the impact of whole car body on excavator is very large, and, abominable noise, vibrations working environment harm operating personnel's physical and mental health, mood anxiety, agitation can appear in the operating personnel.The probability that the long-term excavator of carrying out crushing operation breaks down is higher than the machinery of digging operation far away, apparatus for work crack deformation, the loosening leakage of oil of hydraulic system, hydraulic actuator leakage of oil flexural deformation often appear, the loosening bonding of each connecting circuit is on fire and the electrical equipment original paper burns out, car body welding position crackle etc., more throughout the year than the excavator lost of life 1/3rd that is used for digging operation, fault rate is high by 60%---and 80%, had a strong impact on application life and the construction operation progress of equipping.
The utility model content
The purpose of this utility model is to provide a kind of digging machine disintegrating hammer cantilever damping linking arm, and is large to solve the rigidity vibrations when the operation of existing digging machine disintegrating hammer, the high and high problem of noise of fault rate.
For achieving the above object, the technical solution adopted in the utility model is: digging machine disintegrating hammer cantilever damping linking arm, comprise damping device, and this damping device comprises two sections series connections piston type housing and hydraulic pressure nitrogen accumulator together; Be provided with ring-shaped rubber body and hydraulic jack in the first paragraph piston type housing, this hydraulic jack places the ring of ring-shaped rubber body intracardiac, described cylinder body of hydraulic oil cylinder and piston rod are separately fixed at the two ends of first paragraph piston type housing, and described hydraulic jack carries out hydraulic connecting by oil pipe and external liquid nitrogen accumulator; Be provided with spring in the described second segment piston type housing.
Described first paragraph piston type housing adopts the mode series connection that shares piston combination to be in the same place with second segment piston type housing, described piston combination comprises upper piston cylinder chamber and lower piston cylinder chamber, the uncovered part opposite direction in described upper piston cylinder chamber and lower piston cylinder chamber; Described first paragraph piston type housing comprises the hollow piston connector, and the upper piston cylinder chamber of this hollow piston connector and piston combination is connected; Described second segment piston type housing comprises the piston connector, and the cylinder chamber, bottom of this piston connector and piston combination is connected.
The cylinder body of described hydraulic jack is fixed on the inboard top of hollow piston connector, the piston rod of hydraulic jack acts on the diapire in piston combination upper piston cylinder chamber, is designed with locating convex block in the diapire contact site in liquid presses piston pole and piston combination upper piston cylinder chamber.
Described spring is Rectangular Spring.
The position, outer ring of the upper piston cylinder chamber diapire of described piston combination and the piston cylinder chamber diapire of piston connector is equipped with ring-shaped rubber pad.
The top, the outside of described hollow piston connector is provided with some upper hangers uniformly; Lower end, the described piston connector outside is provided with some lower hangers uniformly.
This programme adopts the piston type telescopic slide to connect; " three grades of associating dampings " design that Rectangular Spring damping, ring-shaped rubber damping combine with the damping of hydraulic pressure nitrogen accumulator; shock momentum when effectively reducing the digging machine disintegrating hammer operation; make car body more steadily and vibrating noise little; played the effect of protection excavator; reduce the fault rate of excavator, prolong the application life of excavator.Simultaneously, broken impact force and damper elastic acting force merge, and two power unification strength increase, and the crushing operation effect is further improved, and has improved operating efficiency.
Description of drawings
Fig. 1, be the perspective view of the damping device of quartering hammer cantilever of the present invention;
Fig. 2, be the top view of Fig. 1;
Fig. 3, be that the A-A of Fig. 2 is to sectional view.
The specific embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
As shown in Figure 1-Figure 3, digging machine disintegrating hammer cantilever damping linking arm of the present invention, comprise damping device, this damping device comprises two sections series connections piston type housing and liquid nitrogen accumulator together, be provided with ring-shaped rubber body 4 and hydraulic jack 9 in the first paragraph piston type housing, this hydraulic jack 9 places the ring of ring-shaped rubber body 4 intracardiac, the cylinder body of hydraulic jack 9 and piston rod be the fixing two ends of first paragraph piston type housing respectively, and hydraulic jack 9 carries out the hydraulic pressure (not shown) by oil pipe 10 and external liquid nitrogen accumulator and is connected; Be provided with spring 5 in the described second segment piston type housing.Ring-shaped rubber body 4 is annular acrylonitrile-butadiene rubber, and spring 5 is Rectangular Spring.
First paragraph piston type housing and second segment piston type housing adopt the mode that shares piston combination 1 to be serially connected, and piston combination comprises upper piston cylinder chamber and lower piston cylinder chamber, the uncovered part opposite direction in upper piston cylinder chamber and lower piston cylinder chamber.First paragraph piston type housing comprises hollow piston connector 2, and this hollow piston connector 2 is connected with the upper piston cylinder chamber of piston combination 1; Second segment piston type housing comprises piston connector 3, and this piston connector 3 is connected with the cylinder chamber, bottom of piston combination 1.The cylinder body of hydraulic jack 9 is fixed on hollow piston connector 2 inboard tops, the piston rod of hydraulic jack acts on the diapire in piston combination 1 upper piston cylinder chamber, diapire contact site in liquid presses piston pole and piston combination 1 upper piston cylinder chamber is designed with locating convex block, guarantees location and guiding when work.
The top, the outside of hollow piston connector 2 is provided with some upper hangers 6 uniformly; Lower end, piston connector 3 outside is provided with some lower hangers 7 uniformly.In actual applications, damping device is fixedly connected with working arm of excavating machine by upper hanger 6 respectively, by lower hanger 7 quartering hammer is fixed on this damping device, thereby forms quartering hammer cantilever damping linking arm.
The concrete syndeton of damping device is: the lower piston cylinder chamber of piston combination 1 is embedded in the piston cylinder chamber of piston connector 3, Rectangular Spring is assemblied in the inner chamber that forms between the lower piston cylinder chamber of piston connector 3 and piston combination 1, two connector precompressed Rectangular Springs.In the upper piston cylinder chamber of piston combination 1 single-action hydrocylinder and annular acrylonitrile-butadiene rubber are housed.Single-action hydrocylinder fixedly be to be fixed on 2 inboard tops on the hollow type piston connector by 4 high-strength bolts, the hydraulic piston rod end acts directly on the diapire of piston combination, contact site at liquid presses piston pole and piston combination 1 is designed with locating convex block, guarantee location and guiding when work, the fluid pressure line of hydraulic jack 9 is located on the working arm of excavator, nitrogen accumulator (not shown) be installed on excavator hydraulic rotary motor around; The installation of annular acrylonitrile-butadiene rubber is that the junction steel plate that is bolted annular acrylonitrile-butadiene rubber body both sides is realized.The anti-even at the cost of one's life junction steel plate of rubber ring is bolted on the diapire of steel bushing piston combination and steel bushing formula connector.
In digging operation, the quartering hammer impact reactive force acts on the piston connector 3 of damping linking arm, after the amplitude of vibration of decaying under the Rectangular Spring 5 flexible effects, shake frequently, power is passed to piston combination 1, the hydraulic jack 9 in piston combination 1 upper piston cylinder chamber at first plays a role under by the effect of nitrogen accumulator, shaking force acts on the piston rod of hydraulic jack, piston rod compression hydraulic oil, hydraulic oil enters compressed nitrogen air bag in the oil pocket of nitrogen accumulator by hydraulic oil pipe 10, thereby compressed nitrogen makes volume-diminished.When shaking force was downward, compressed nitrogen exapnsion forced the air bag space to become large, and the oil pocket space diminishes, hydraulic oil enters in the oil pocket of hydraulic jack through pipeline, hydraulic oil extruding hydraulic cylinder piston rod forces piston rod to the purpose that is issued to damping, and this moment, damping effect was better.When excavator becomes large to the pressure of quartering hammer or vibration amplitude when larger, the annular acrylonitrile-butadiene rubber is started working, the power that the Rectangular Spring transmission comes acts on hydraulic jack and the damping rubber block simultaneously, vibrations are after further frequency and amplitude of vibration are shaken in decay under hydraulic jack and the rubber effect, shaking force after the decay passes to hollow type piston connector, and hollow type piston connector is connected on the working arm of excavator by upper hanger.When whole gravity of excavator be pressed onto on the quartering hammer or the model of apolegamy damping arm hour, the piston base of hollow piston connector and piston combination will prop up on the diapire in piston cylinder chamber of piston connector and piston combination, for preventing the stiff dough collsion damage of steel and steel, the position, outer ring of the top cylinder chamber diapire of piston combination 1 and the piston cylinder chamber diapire of piston connector 3 is equipped with ring-shaped rubber pad 8, avoids the very stiff and demanding damage that produces.The impact reactive force of quartering hammer plays effect and the target of protection excavator, reduction operating personnel degree of fatigue through passing on the excavator after the decay step by step.
It is very ripe at present that this invents applied every technology, be widely used in each field, glissando design science is reasonable, simple in structure, easy operating, safe and reliable, stable performance, can make according to the quartering hammer of different model the damping linking arm device of different size, be applicable to each model excavator, can apply on a large scale, have stronger practicality, feasibility.
Claims (7)
1. a digging machine disintegrating hammer cantilever damping linking arm comprises damping device, it is characterized in that, this damping device comprises two sections series connections piston type housing and hydraulic pressure nitrogen accumulator together; Be provided with ring-shaped rubber body and hydraulic jack in the first paragraph piston type housing, this hydraulic jack places the ring of ring-shaped rubber body intracardiac, described cylinder body of hydraulic oil cylinder and piston rod are separately fixed at the two ends of first paragraph piston type housing, and described hydraulic jack carries out hydraulic connecting by oil pipe and external liquid nitrogen accumulator; Be provided with spring in the described second segment piston type housing.
2. according to digging machine disintegrating hammer cantilever damping linking arm claimed in claim 1, it is characterized in that, described first paragraph piston type housing adopts the mode series connection that shares piston combination to be in the same place with second segment piston type housing, described piston combination comprises upper piston cylinder chamber and lower piston cylinder chamber, the uncovered part opposite direction in described upper piston cylinder chamber and lower piston cylinder chamber; Described first paragraph piston type housing comprises the hollow piston connector, and the upper piston cylinder chamber of this hollow piston connector and piston combination is connected; Described second segment piston type housing comprises the piston connector, and the cylinder chamber, bottom of this piston connector and piston combination is connected.
3. according to digging machine disintegrating hammer cantilever damping linking arm claimed in claim 2, it is characterized in that, the cylinder body of described hydraulic jack is fixed on the inboard top of hollow piston connector, the piston rod of hydraulic jack acts on the diapire in piston combination upper piston cylinder chamber, is designed with locating convex block in the diapire contact site in liquid presses piston pole and cylinder chamber, piston combination top.
4. according to each described digging machine disintegrating hammer cantilever damping linking arm among the claim 1-3, it is characterized in that described spring is Rectangular Spring.
5. according to each described digging machine disintegrating hammer cantilever damping linking arm among the claim 2-3, the position, outer ring of the upper piston cylinder chamber diapire of described piston combination and the piston cylinder chamber diapire of piston connector is equipped with ring-shaped rubber pad.
6. according to digging machine disintegrating hammer cantilever damping linking arm claimed in claim 5, it is characterized in that the position, outer ring of the upper piston cylinder chamber diapire of described piston combination and the piston cylinder chamber diapire of piston connector is equipped with ring-shaped rubber pad.
7. according to digging machine disintegrating hammer cantilever damping linking arm claimed in claim 6, it is characterized in that the top, the outside of described hollow piston connector is provided with some upper hangers uniformly; Lower end, the described piston connector outside is provided with some lower hangers uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220140672 CN202706092U (en) | 2012-03-28 | 2012-03-28 | Excavator quartering hammer cantilever damping connection arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220140672 CN202706092U (en) | 2012-03-28 | 2012-03-28 | Excavator quartering hammer cantilever damping connection arm |
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| Publication Number | Publication Date |
|---|---|
| CN202706092U true CN202706092U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220140672 Expired - Lifetime CN202706092U (en) | 2012-03-28 | 2012-03-28 | Excavator quartering hammer cantilever damping connection arm |
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| CN (1) | CN202706092U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619250A (en) * | 2012-03-28 | 2012-08-01 | 路长顺 | Damping connection arm for quartering hammer cantilever of excavator |
| CN108824541A (en) * | 2018-07-09 | 2018-11-16 | 安徽美琳建筑材料有限公司 | A kind of construction material noise reduction quartering hammer |
| CN110761275A (en) * | 2019-11-06 | 2020-02-07 | 甘肃喜匠智能设备科技有限公司 | Novel breaking hammer |
-
2012
- 2012-03-28 CN CN 201220140672 patent/CN202706092U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619250A (en) * | 2012-03-28 | 2012-08-01 | 路长顺 | Damping connection arm for quartering hammer cantilever of excavator |
| CN102619250B (en) * | 2012-03-28 | 2015-04-08 | 路长顺 | Damping connection arm for quartering hammer cantilever of excavator |
| CN108824541A (en) * | 2018-07-09 | 2018-11-16 | 安徽美琳建筑材料有限公司 | A kind of construction material noise reduction quartering hammer |
| CN110761275A (en) * | 2019-11-06 | 2020-02-07 | 甘肃喜匠智能设备科技有限公司 | Novel breaking hammer |
| CN110761275B (en) * | 2019-11-06 | 2021-07-06 | 甘肃喜匠智能设备科技有限公司 | Novel breaking hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130130 Effective date of abandoning: 20150408 |
|
| RGAV | Abandon patent right to avoid regrant |