CN202175980U - Vibrational energy absorbing device of evacuator crushing hammer - Google Patents
Vibrational energy absorbing device of evacuator crushing hammer Download PDFInfo
- Publication number
- CN202175980U CN202175980U CN2011202947258U CN201120294725U CN202175980U CN 202175980 U CN202175980 U CN 202175980U CN 2011202947258 U CN2011202947258 U CN 2011202947258U CN 201120294725 U CN201120294725 U CN 201120294725U CN 202175980 U CN202175980 U CN 202175980U
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- absorber
- piston rod
- cylinder body
- piston
- end cap
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Abstract
A vibrational energy absorbing device of an evacuator crushing hammer comprises a large arm, a small arm, a vibrating hydraulic cylinder and a crushing hammer assembly and is characterized by further comprising an absorber, a cylinder body of the absorber is fixed on the inner wall of the small arm, and a piston rod of the absorber is connected to the rear end face of a vibration hydraulic cylinder. The vibrational energy absorbing device of the evacuator crushing hammer has the advantages of adopting a vibration energy absorber to convert energy generated by a vibration source into heat through liquid flowing damping and eradicating hidden hazards causing vibration of a complete evacuator.
Description
Technical field
The utility model relates to a kind of vibrational energy absorption plant, and particularly a kind of quartering hammer reversal of vibrations that is used for demolishing buildings can absorption plant.
Background technology
Digging machine disintegrating hammer is widely used in demolishing buildings and block fragmentation at present, and the broken energy that needs during owing to work is bigger, thereby quartering hammer adopts fluid pressure type.Hydraulic breaking hammer mainly is made up of vibrating hydraulic cylinder and quartering hammer assembly, and vibrating hydraulic cylinder piston drill steel compresses the high pressure nitrogen stored energy in the backhaul accelerator; Because the endergonic speed of high pressure nitrogen is much slower than vibrational energy speed; Therefore impact shock just takes place in the quartering hammer cylinder body, because quartering hammer is fixed on the forearm of excavator, vibrational energy will be propagated through big arm through forearm; Cause complete machine oscillation, form hazard of vibration.
Summary of the invention
The utility model technical problem to be solved is will provide a kind of can quartering hammer be produced reverse vibrational energy absorption, and converts heat energy release into, prevents the vibrational energy propagation, solves the problem of excavator complete machine oscillation.
The utility model technical problem to be solved is to realize like this; Device comprises big arm, forearm, vibrating hydraulic cylinder, quartering hammer assembly; Its characteristic also is to comprise absorber, and the cylinder body of absorber is fixed on the forearm inwall, and the piston rod of absorber is connected with the rear end face of vibrating hydraulic cylinder.
Described absorber comprises: cylinder body, absorption piston, piston rod, back-moving spring, nut assembly are formed, and absorption piston is positioned at the inner chamber of cylinder body and is sealed and matched with internal chamber wall, and the end cap end face of absorption piston is connected with piston rod; Piston rod and cylinder body end face seal; There is nut assembly the piston rod end, between cylinder body end face and nut assembly back-moving spring is arranged, and back-moving spring is enclosed within on the piston rod; The one of which end is connected with the end cap of cylinder body, and the other end is connected with nut assembly.
Described absorption piston comprises: damping housing, slide block, balancing spring, trimmer, end cap are formed; Slide block is positioned at damping housing inner chamber and is sealed and matched with internal chamber wall; Slide block one side is connected with balancing spring one end; The balancing spring other end is connected with end cap, and there is spill port at the center of end cap, between end cap and damping housing trimmer is arranged.
Beneficial effect: because when having adopted said structure, piston rod to receive extraneous vibration power Fz, piston vibrates left; Fluid receives vibrational energy; Vibrational energy makes pressure oil hinder helicla flute-pressure drop passage-S2-plenum chamber through liquid and returns rod chamber, forms the interior circulation of flow, thereby converts vibrational energy into heat energy through the liquid flow damping; Eliminate the energy source influence that causes complete machine oscillation, solved technical problem to be solved by this invention.
Advantage: 1, the timely absorbed oscillation ability of self-setting function, reduced reverse impact force to complete machine, vibration damping is timely, effective.
2, the wave of oscillation is conditioned the slide block counteracting, has avoided the interference to vibration source, and the vibration damping precision is high.
Description of drawings
Fig. 1 is the structure chart of the utility model.
Fig. 2 is the structure chart of the utility model absorber.
Fig. 3 is the absorption structure of piston figure of the utility model.
Among the figure: 1, big arm; 2, forearm; 3, absorber; 4, vibrating hydraulic cylinder; 5, quartering hammer assembly; 6, cylinder body; 7, absorption piston; 8, piston rod; 9, back-moving spring; 10, nut assembly; 7a, damping housing; 7b, slide block; 7c, balancing spring; 7d, trimmer; 7e, end cap.
The specific embodiment
Embodiment, device comprise big arm 1, forearm 2, vibrating hydraulic cylinder 4, quartering hammer assembly 5, and its characteristic also is to comprise absorber 3, and the cylinder body 6 of absorber is fixed on forearm 2 inwalls, and the piston rod 8 of absorber 3 is connected with the rear end face of vibrating hydraulic cylinder 4.
Described absorber comprises: cylinder body 6, absorption piston 7, piston rod 8, back-moving spring 9, nut assembly 10 are formed; Absorption piston 7 is positioned at the inner chamber of cylinder body 6 and is sealed and matched with internal chamber wall; The end cap end face of absorption piston is connected with piston rod 8, piston rod 8 and cylinder body 6 end face seals, and there is nut assembly 10 piston rod 8 ends; 10 of cylinder body 6 end faces and nut assemblies have back-moving spring 9; Back-moving spring 9 is enclosed within on the piston rod 8, and the one of which end is connected with the end cap of cylinder body 6, and the other end is connected with nut assembly 10.
Described absorption piston comprises: damping housing 7a, slide block 7b, balancing spring 7c, trimmer 7d, end cap 7e form; Slide block 7b is positioned at damping housing 7a inner chamber and is sealed and matched with internal chamber wall; Slide block 7b one side is connected with balancing spring 7c one end; The balancing spring 7c other end is connected with end cap 7e, and there is spill port B ' at the center of end cap 7e, between end cap 7e and damping housing 7a trimmer 7d is arranged.
Operating principle: vibrating hydraulic cylinder piston drives and rebounds after the quartering hammer assembly is in strike pause stage to piston impact; Get into and impact the backhaul stage; Produce vibrational energy and provide the rear end of the cylinder block face to pass to the absorber piston bar, when piston rod received vibration force Fz, absorption piston vibrated left; Fluid receives vibrational energy; Vibrational energy converts extraneous vibration power Fz to pressure signal and is divided into two-way through the effective area of rodless cavity: one road P1z goes out the size of vibration force through the S1 end of the ripple receiver hole A entering slide block 2 that shakes of damping housing according to the effective area measuring of S1.Another road pressure signal P 1 and flow Q1 get into the liquid resistance channel C of damping housing simultaneously, return rod chamber through liquid resistance helicla flute pressure drop passage and plenum chamber D, form the interior circulation of flow.S1, S2 through slide block compare, and its difference and pressure balance device be Balance Treatment again, confirm that finally slide block in this optimum position constantly, reaches the purpose of being eliminated vibration force by hydraulic damping fully, protection sorts of systems plateau.
Claims (3)
1. the vibrational energy absorption plant of a digging machine disintegrating hammer comprises: big arm, forearm, vibrating hydraulic cylinder, quartering hammer assembly; Its characteristic also is to comprise absorber; The cylinder body of absorber is fixed on the forearm inwall, and the piston rod of absorber is connected with the rear end face of vibrating hydraulic cylinder.
2. device according to claim 1 is characterized in that, described absorber comprises: cylinder body, absorption piston, piston rod, back-moving spring, nut assembly are formed; Absorption piston is positioned at the inner chamber of cylinder body and is sealed and matched with internal chamber wall; The end cap end face of absorption piston is connected with piston rod, piston rod and cylinder body end face seal, and there is nut assembly the piston rod end; Between cylinder body end face and nut assembly back-moving spring is arranged; Back-moving spring is enclosed within on the piston rod, and the one of which end is connected with the end cap of cylinder body, and the other end is connected with nut assembly.
3. device according to claim 2; It is characterized in that described absorption piston comprises: damping housing, slide block, balancing spring, trimmer, end cap are formed, and slide block is positioned at damping housing inner chamber and is sealed and matched with internal chamber wall; Slide block one side is connected with balancing spring one end; The balancing spring other end is connected with end cap, and there is spill port at the center of end cap, between end cap and damping housing trimmer is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202947258U CN202175980U (en) | 2011-08-05 | 2011-08-05 | Vibrational energy absorbing device of evacuator crushing hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202947258U CN202175980U (en) | 2011-08-05 | 2011-08-05 | Vibrational energy absorbing device of evacuator crushing hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202175980U true CN202175980U (en) | 2012-03-28 |
Family
ID=45865868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202947258U Expired - Fee Related CN202175980U (en) | 2011-08-05 | 2011-08-05 | Vibrational energy absorbing device of evacuator crushing hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202175980U (en) |
-
2011
- 2011-08-05 CN CN2011202947258U patent/CN202175980U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20120328 Termination date: 20140805 |
|
| EXPY | Termination of patent right or utility model |