CN202804900U - Hydraulic balance weight device for high speed reciprocating motion component - Google Patents
Hydraulic balance weight device for high speed reciprocating motion component Download PDFInfo
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- CN202804900U CN202804900U CN 201220492021 CN201220492021U CN202804900U CN 202804900 U CN202804900 U CN 202804900U CN 201220492021 CN201220492021 CN 201220492021 CN 201220492021 U CN201220492021 U CN 201220492021U CN 202804900 U CN202804900 U CN 202804900U
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- cylinder
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- high speed
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- working cylinder
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Abstract
The utility model discloses a hydraulic balance weight device for a high speed reciprocating motion component. The hydraulic balance weight device for the high speed reciprocating motion component comprises a driving cylinder and a driven cylinder which are fixed on a machine frame and are filled with media. A piston rod of the driving cylinder is connected with a reciprocating motion component driven by a power source. A piston rod of the driven cylinder is connected with a balance weight piece. A first connecting pipe is connected between cylinder barrels arranged on the ends, without the rods, of the driving cylinder and the driven cylinder. The media filled in the driving cylinder and the driven cylinder flow in the cylinder barrels arranged on the ends, without the rods, of the driving cylinder and the driven cylinder. A second connecting pipe is connected between cylinder barrels arranged on the ends, with the rods, of the driving cylinder and the driven cylinder. The media filled in the driving cylinder and the driven cylinder flow in the cylinder barrels arranged on the ends, with the rods, of the driving cylinder and the driven cylinder. The balancing weight piece is driven by the media filled in the cylinder barrels arranged on the ends, with the rods, of the driving cylinder and the driven cylinder to perform a reciprocation motion along a direction opposite to a reciprocation motion direction of the piston rod of the driving cylinder. The hydraulic balance weight device for the high speed reciprocating motion component has the advantage that the incompressibility of the working media filled in the cylinder barrels of the driving working cylinder and the driven working cylinder is used to transmit force in a mode of rigidity to drive weightless sides to move synchronously, and therefore the 'weightlessness' of balancing weight sides and instability of the system in operation are avoided completely.
Description
Technical field
[0001] the utility model relates to the weight-balancing device of plant equipment, especially relates to a kind of hydraulic counterweight device for the high speed reciprocating member.
Background technology
At machinery industry, the weight for balance vertical (or inclination) high speed reciprocating member reduces transfer motion power, adopts the counterweight balancing device of various versions more.But common bascule commonly used often adopts chain or steel wire rope to connect, and can occur the phenomenon of counterweight " weightlessness " during greater than acceleration of gravity at the driving part acceleration, causes the whole system fluctuation of service.
In view of the foregoing, at present, numerical control honing machines etc. move at a high speed, the plant equipment of frequent commutation does not all adopt weight-balancing device, in order to overcome gravity and the movement inertia that promotes its parts that move both vertically, adopted larger drive motors, its reason mainly by following some: 1, acceleration (greater than 1g) that need to be higher owing to move both vertically and frequent commutation (moving both vertically commutation nearly more than 100 beats/mins), therefore require parts that higher endurance impact strength and long replacement cycle are arranged, common bascule adopts steel wire rope-pulley gear or chain-chain gear apparatus hanging balancing to weigh, complex structure, huge, owing to the overall structure limited space of machine is difficult to adopt; 2, because the acceleration the during commutation of the active movement parts (such as main shaft) of numerical control honing machine often surpasses acceleration of gravity 1g, the balancing weight acceleration that relies on gravity to descend is acceleration of gravity, when rising, can cause master end hypergravity acceleration balancing weight instantaneous " weightlessness ", accelerate to when synchronous with driving part by acceleration of gravity Deng it, instantaneously again the driving parts such as main shaft are impacted, be that revolution is tens thousand of to 1,000,000 situation adopting the digital control system coded pulse, this impact will make the control step-out, system's unstability.If force counterweight and driving part synchronous, because the restriction of complete machine structure will be very difficult.3, because move both vertically at a high speed acceleration (greater than 1g) that need to be higher and commutate frequently (moving both vertically commutation nearly more than 100 beats/mins), the sensitiveness of alternate stress being impacted in view of steel wire rope or chain, require steel wire rope or chain as the balance connector, also obviously can not meet the demands of short duration service life.
Summary of the invention
The purpose of this utility model is the defective for the prior art existence, a kind of hydraulic counterweight device for the high speed reciprocating member is provided, this device can reduce transfer motion power, acceleration when improving commutation, counterweight " weightlessness " and the system's unstability of having avoided common bascule to cause during greater than acceleration of gravity at the driving part acceleration.
For achieving the above object, the utility model can be taked following technical proposals:
Hydraulic counterweight device for the high speed reciprocating member described in the utility model, it comprises and is fixed on active working cylinder and the passive working cylinder that is filled with working media on the frame, the piston rod of described active working cylinder is connected with the reciprocating member that is driven by power source through connector, and the piston rod of described passive working cylinder is connected with balancing weight; Be connected with the first connecting leg between the rear end cylinder barrel of described active working cylinder and passive working cylinder, working media of filling flows in the rear end cylinder barrel of two working cylinders in it, be connected with the second connecting leg between the rod end cylinder barrel of described active working cylinder and passive working cylinder, working media of filling flows in the rod end cylinder barrel of two cylinders in it; Do under the driving of described balancing weight working media in two working cylinder rod end cylinder barrels and the initiatively reciprocating motion of working cylinder piston bar opposite direction.
Described working media is the various liquid such as mineral oil, emulsion or water.
Be respectively arranged with reciprocating member upper limit position sensor, balancing weight upper limit position sensor and balancing weight lower position sensor in described frame.
Described the second connecting leg is connected with the external pressure medium box through by-pass valve control.
If working media adopts the liquid such as mineral oil, emulsion, water, need to connect overflow pipe on described the first connecting leg, be provided with overflow valve on the overflow pipe.
Be provided with cooler on the described frame, described cooler is connected respectively with the first connecting leg and the second connecting leg.
The utility model has the advantage of the Incoercibility of utilizing liquid-working-medium in the initiatively working cylinder and passive working cylinder cylinder barrel, rigid of transmission power forces " counterweight " side to be synchronized with the movement, and has avoided " weightlessness " of counterweight side fully and system's " unstability " when working.Because hydraulic drive has been very ripe technology, can bear the impact of very large power and frequent commutation, compared with traditional enclosed steel wire rope-pulley or sprocket wheel-chain transmission system, easy for installation, long service life, make the transmission device of at a high speed frequent commutation adopt balance weight system to become a reality, greatly reduce driving power, energy conservation and consumption reduction effects is remarkable.This device is used for vertical internal cylindrical honing machine, can make vertical back and forth drive motors power reduce by 50%, make whole machine installation power reduce about 32%, unit was pressed two classes of productions in 1 year, compare nearly 30,000 yuan of year saving electricity charge with other honing machine of same specification, energy-saving effect is very remarkable.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
The specific embodiment
Hydraulic counterweight device for the high speed reciprocating member described in the utility model can be realized by two kinds of connected modes: rod end suspension type (embodiment 1) and rod end bearing pressure type (embodiment 2).
Embodiment 1:
As shown in Figure 1, hydraulic counterweight device for the high speed reciprocating member described in the utility model, it comprises and is fixed on active working cylinder 3 and the passive working cylinder 4 that is filled with working media 2 on the frame 1, initiatively the piston rod 5 of working cylinder 3 is connected with the reciprocating member 6 that is driven by power source through connector, and the piston rod 7 of passive working cylinder 4 is connected with balancing weight 8; Initiatively be connected with the first connecting leg 9 between the rear end cylinder barrel of working cylinder 3 and passive working cylinder 4, working media of filling flows in the rear end cylinder barrel of two working cylinders in it, initiatively be connected with the second connecting leg 10 between the rod end cylinder barrel of working cylinder 3 and passive working cylinder 4, working media of filling flows in the rod end cylinder barrel of two working cylinders in it; Do under the driving of balancing weight 8 working media in two working cylinder rod end cylinder barrels and the initiatively reciprocating motion of working cylinder piston bar 5 opposite directions.
During work, the piston rod 5 that power source drives reciprocating member 6 drive active working cylinders pumps, piston actuated top working media flows in two working cylinder rear end cylinder barrels, the bottom working media flows in two cylinder rod end cylinder barrels, the piston that drives passive working cylinder moves round about with the active working cylinder piston, the gravity of balancing weight 8 puts on passive working cylinder piston, balances most of gravity of vertical or inclination reciprocating member 6 by the second connecting leg 10 through underpiston medium again.
Initiatively the working media 2 of working cylinder 3 and the 4 interior fillings of passive working cylinder can be the various liquid such as mineral oil, emulsion, water.
Because hydraulic cylinder is when operation, can there be internal and outernal leakage in various degree, although reciprocating member 6 is not subjected to the impact that working media leaks in the working cylinder, but balancing weight 8 is owing to be suspended on the piston rod of passive working cylinder, the leakage of working media can cause balancing weight 8 to depart from former allocation whereabouts, when acquiring a certain degree, machine just can't be worked, so be respectively arranged with reciprocating member upper limit position sensor 11 in frame 1, balancing weight upper limit position sensor 12 and balancing weight lower position sensor 13, can in time correct this deviation, make balancing weight 8 playback.When machine assembles, the upper limit position sensor 11 of reciprocating member 6 is installed according to design attitude, while is according to the stroke of reciprocating member 6, corresponding upper limit position sensor 12 and the lower position sensor 13 that balancing weight 8 is installed, when reciprocating member 6 is positioned at upper limit position, whether detection balancing weight 8 makes it depart from desired location because leaking outside in the medium in the working cylinder and drops to the lower position, if so, then needs to replenish medium lifting balancing weight 8 to upper limit position in working cylinder.
The second connecting leg 10 is connected with the external pressure medium box through by-pass valve control 14.When dielectric leakage in working cylinder, the original position of balancing weight 8 dropped to setting value, by-pass valve control 14 was opened, and the external pressure medium is added in the working cylinder rod end, balancing weight 8 is risen set back, and closed to the desired location late gate, stopped to replenish.By-pass valve control 14 can be magnetic valve, hydraulic operated valve, pneumatic operated valve or motor-driven valve.
Be connected with overflow pipe on the first connecting leg 9, be provided with overflow valve 15 at overflow pipe; When by-pass valve control 14 was opened to the additional medium of two cylinder rod ends, overflow valve 15 was opened, and the interior unnecessary working media of two working cylinder rear end cylinder barrels is overflowed return medium box; When stopping to replenish medium, this valve cuts out, and overflow valve 15 can be magnetic valve, hydraulic operated valve, pneumatic operated valve or motor-driven valve.
Be provided with cooler 16 on the frame 1, the cooling line of cooler 16 is connected with the first connecting leg 9 and the second connecting leg 10 respectively.Use when working media need to cool off, the two-way medium can share one or respectively adopt a cooler.
Embodiment 2:
As shown in Figure 2, hydraulic counterweight device for the high speed reciprocating member described in the utility model, it comprises and is fixed on active working cylinder 3 and the passive working cylinder 4 that is filled with working media 2 on the frame 1, because reciprocating member 6 and balancing weight 8 are to be pressed in respectively on active working cylinder 3 and the passive working cylinder 4, for making the main shaft stress balance that drives reciprocating member 6, and the structure of simplification device, initiatively working cylinder 3 is a pair of cylinder body that inner cavity of cylinder is communicated with respectively about in the of two, piston rod 5 synchronization actions of two cylinder bodies, be connected with the reciprocating member 6 that is driven by power source by connector, the piston rod 7 of passive working cylinder 4 is connected with balancing weight 8; Initiatively be connected with the first connecting leg 9 between the rear end cylinder barrel of working cylinder 3 and passive working cylinder 4, working media of filling flows in the rear end cylinder barrel of two active working cylinders and a passive working cylinder in it, initiatively be connected with the second connecting leg 10 between the rod end cylinder barrel of working cylinder 3 and passive working cylinder 4, working media of filling flows in the rod end cylinder barrel of two active working cylinders and a passive working cylinder in it; Do under the driving of balancing weight 8 working media in the rod end cylinder barrel and the initiatively reciprocating motion of working cylinder piston bar 5 opposite directions.
Because the counter weight device (present embodiment) of rod end bearing pressure type is identical with the underslung counter weight device of rod end (above-described embodiment 1) principle, form also basic identical, so but its structure reference example 1 repeat no more.
In like manner, according to the difference of use occasion, it is multi-form that the utility model can also be combined into identical other of function.
Claims (6)
1. hydraulic counterweight device that is used for the high speed reciprocating member, it is characterized in that: it comprises and is fixed on active working cylinder (3) and the passive working cylinder (4) that is filled with working media (2) on the frame (1), the piston rod (5) of described active working cylinder (3) is connected with the reciprocating member (6) that is driven by power source through connector, and the piston rod (7) of described passive working cylinder (4) is connected with balancing weight (8); Be connected with the first connecting leg (9) between the rear end cylinder barrel of described active working cylinder (3) and passive working cylinder (4), working media of filling flows in the rear end cylinder barrel of two working cylinders in it, be connected with the second connecting leg (10) between the rod end cylinder barrel of described active working cylinder (3) and passive working cylinder (4), working media of filling flows in the rod end cylinder barrel of two cylinders in it; Do under the driving of described balancing weight (8) working media in two working cylinder rod end cylinder barrels and the initiatively reciprocating motion of working cylinder piston bar (5) opposite direction.
2. the hydraulic counterweight device for the high speed reciprocating member according to claim 1, it is characterized in that: described working media (2) is mineral oil, emulsion or water.
3. the hydraulic counterweight device for the high speed reciprocating member according to claim 1 is characterized in that: be respectively arranged with reciprocating member upper limit position sensor (11), balancing weight upper limit position sensor (12) and balancing weight lower position sensor (13) in described frame (1).
4. the hydraulic counterweight device for the high speed reciprocating member according to claim 1, it is characterized in that: described the second connecting leg (10) is connected with the external pressure medium box through by-pass valve control (14).
5. the hydraulic counterweight device for the high speed reciprocating member according to claim 4 is characterized in that: be connected with overflow pipe on described the first connecting leg (9), be provided with overflow valve (15) at overflow pipe.
6. the hydraulic counterweight device for the high speed reciprocating member according to claim 1, it is characterized in that: be provided with cooler (16) on the described frame (1), described cooler (16) is connected respectively with the first connecting leg (9) and the second connecting leg (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492021 CN202804900U (en) | 2012-09-25 | 2012-09-25 | Hydraulic balance weight device for high speed reciprocating motion component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492021 CN202804900U (en) | 2012-09-25 | 2012-09-25 | Hydraulic balance weight device for high speed reciprocating motion component |
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| Publication Number | Publication Date |
|---|---|
| CN202804900U true CN202804900U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220492021 Withdrawn - After Issue CN202804900U (en) | 2012-09-25 | 2012-09-25 | Hydraulic balance weight device for high speed reciprocating motion component |
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| CN (1) | CN202804900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825539A (en) * | 2012-09-25 | 2012-12-19 | 郑州大地机械制造有限公司 | Hydraulic counter weight device applied to high-speed reciprocating motion component |
| CN108519179A (en) * | 2018-03-29 | 2018-09-11 | 江南大学 | A kind of measuring device and method of the practical peak torque of motor |
-
2012
- 2012-09-25 CN CN 201220492021 patent/CN202804900U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825539A (en) * | 2012-09-25 | 2012-12-19 | 郑州大地机械制造有限公司 | Hydraulic counter weight device applied to high-speed reciprocating motion component |
| CN102825539B (en) * | 2012-09-25 | 2016-02-10 | 郑州大地机械制造有限公司 | For the hydraulic counterweight device of high speed reciprocating member |
| CN108519179A (en) * | 2018-03-29 | 2018-09-11 | 江南大学 | A kind of measuring device and method of the practical peak torque of motor |
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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: 20130320 Effective date of abandoning: 20160210 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |