CN212717478U - Energy-saving hydraulic device of walking beam furnace - Google Patents
Energy-saving hydraulic device of walking beam furnace Download PDFInfo
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- CN212717478U CN212717478U CN202021478067.3U CN202021478067U CN212717478U CN 212717478 U CN212717478 U CN 212717478U CN 202021478067 U CN202021478067 U CN 202021478067U CN 212717478 U CN212717478 U CN 212717478U
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Abstract
The utility model provides an energy-saving hydraulic device of a walking beam furnace, which comprises a lifting hydraulic cylinder, a rod cavity and a rodless cavity; a gravitational potential energy storage cylinder; the pressure cylinder comprises a cylinder body, a piston arranged in the cylinder body and a baffle ring plate arranged in the cylinder body, the piston comprises a large end and a small end which are vertically connected, the small end of the piston can penetrate through the baffle ring plate, the large end of the piston cannot penetrate through the baffle ring plate, the cylinder body is divided into three chambers by the piston and the baffle ring plate, and the three chambers are respectively communicated with a rod chamber, a rodless chamber and a gravitational potential energy storage cylinder; the large end of the piston is matched with the inner wall of the cylinder body, the outer wall of the baffle ring plate is matched with the inner wall of the cylinder body, and the small end of the piston is matched with the inner wall of the baffle ring plate. The energy-saving hydraulic device enables the hydraulic oil in the lifting hydraulic cylinder of the lifting walking beam to be recycled, absorbs the gravitational potential energy in time when the hydraulic cylinder descends, converts the gravitational potential energy into kinetic energy, reduces the energy loss of a hydraulic system, and improves the utilization rate of the hydraulic oil.
Description
Technical Field
The utility model relates to a hydraulic pressure energy-conserving technical field especially relates to an energy-saving hydraulic means of marching type heating furnace.
Background
The walking beam furnace is also a continuous furnace, which moves according to a certain track (usually a rectangular track) by a special walking mechanism to make the steel material in the furnace advance step by step. Generally, the walking beam type heating furnace completes heating and conveying of a billet through a cycle of ascending, advancing, descending and retreating of the walking beam.
When the walking beam rises to support the steel billet, the lifting hydraulic cylinder needs to overcome all loads to do work, the power output is very large, and the thrust required by the walking beam during transverse moving is relatively small; when the steel billet descends, the lifting hydraulic cylinder bears negative load under the action of gravity, the hydraulic system provides back pressure to enable the walking beam to descend stably, and the working condition causes the power output of the hydraulic system to be extremely unbalanced and the hydraulic system to generate heat, so that energy waste is caused.
Therefore, there is a need to develop an energy-saving hydraulic device for a walking beam furnace, which can recycle the hydraulic oil in the hydraulic cylinder for lifting the walking beam, and can absorb the gravitational potential energy of the walking beam when the walking beam descends in time and convert the gravitational potential energy into kinetic energy, thereby reducing the energy loss of the hydraulic system and improving the utilization rate of the hydraulic oil.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art or the correlation technique.
Therefore, the utility model provides an energy-saving hydraulic means of walking beam furnace.
In view of this, the utility model provides an energy-saving hydraulic means of walking beam furnace, energy-saving hydraulic means of walking beam furnace includes:
the lifting hydraulic cylinder comprises a rod cavity and a rodless cavity;
a gravitational potential energy storage cylinder;
the boosting cylinder comprises a cylinder body, a piston arranged in the cylinder body and a baffle ring plate arranged in the cylinder body, the piston comprises a large end and a small end which are vertically connected, the small end of the piston can penetrate through the baffle ring plate, the large end of the piston cannot penetrate through the baffle ring plate, the cylinder body is divided into three chambers by the piston and the baffle ring plate, and the three chambers are respectively communicated with the rod chamber, the rodless chamber and the gravitational potential energy storage cylinder;
the large end of the piston is matched with the inner wall of the cylinder body, the outer wall of the baffle ring plate is matched with the inner wall of the cylinder body, and the small end of the piston is matched with the inner wall of the baffle ring plate.
Furthermore, the pressure cylinder further comprises a front end cover and a rear end cover, the front end cover is located at one end, close to the large end of the piston, of the cylinder body, and the rear end cover is arranged at the other end of the cylinder body.
Further, the distance between the baffle ring plate and the rear end cover is greater than the length of the small end of the piston.
Further, the front end cover, the cylinder body and the large head end of the piston enclose a first chamber, and the first chamber is communicated with the rodless cavity.
Further, a displacement sensor is arranged in the first chamber.
Furthermore, a second chamber is defined by the big head end of the piston, the cylinder body and the baffle ring plate, and is communicated with the gravitational potential energy storage cylinder.
Furthermore, a third chamber is defined by the small end of the piston, the cylinder body, the baffle ring plate and the rear end cover, and is communicated with the rod chamber.
Furthermore, the pressure cylinder also comprises a spring, one end of the spring is connected with the front end cover, and the other end of the spring is connected with the large head end of the piston.
Further, the energy-saving hydraulic device of the walking beam furnace further comprises:
and the energy supplementing cylinder is communicated with the gravitational potential energy storage cylinder.
The utility model provides a technical scheme can include following beneficial effect:
the lifting hydraulic cylinder is connected with the stepping beam and communicated with the pressure cylinder, so that hydraulic oil in the lifting hydraulic cylinder can be recycled, and the pressure cylinder is communicated with the gravitational potential energy storage cylinder, so that gravitational potential energy generated when the stepping beam descends is absorbed in time, and kinetic energy is converted into kinetic energy again when the stepping beam ascends, thereby reducing energy loss of a hydraulic system and improving the utilization rate of the hydraulic oil.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a schematic diagram of an energy-saving hydraulic device of a walking beam furnace according to an embodiment of the present invention;
fig. 2 shows a cross-sectional view of a pressurized cylinder according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:
1 lifting hydraulic cylinder, 101 rodless cavities, 102 rod cavities, 2 walking beams, 3 gravitational potential energy storage cylinders, 4 energy supplement cylinders, 5 pressure cylinders, 501 front end covers, 502 cylinder bodies, 503 springs, 504 pistons, 5041 large-head ends, 5042 small-head ends, 505 baffle ring plates, 506 rear end covers, 507 third cavities, 508 second cavities, 509 first cavities, 510 displacement sensors and 6 reversing valves.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Examples
Fig. 1 shows a schematic diagram of an energy-saving hydraulic device of a walking beam furnace according to an embodiment of the present invention.
As shown in fig. 1, the present embodiment proposes an energy-saving hydraulic apparatus for a walking beam furnace, which includes:
the lifting hydraulic cylinder 1 comprises a rod cavity 102 and a rodless cavity 101;
a gravitational potential energy storage cylinder 3;
the booster cylinder 5 comprises a cylinder body 502, a piston 504 arranged in the cylinder body 502 and a baffle ring plate 505 arranged in the cylinder body 502, wherein the piston 504 comprises a large head end 5041 and a small head end 5042 which are vertically connected, the small head end 5042 of the piston 504 can penetrate through the baffle ring plate 505, the large head end 5041 of the piston 504 cannot penetrate through the baffle ring plate 505, the piston 504 and the baffle ring plate 505 divide the cylinder body 502 into three chambers, and the three chambers are respectively communicated with the rod chamber 102, the rodless chamber 101 and the gravitational potential energy storage cylinder 3;
the large end 5041 of the piston 504 is matched with the inner wall of the cylinder 502, the outer wall of the baffle ring plate 505 is matched with the inner wall of the cylinder 502, and the small end 5042 of the piston 504 is matched with the inner wall of the baffle ring plate 505.
It should be noted that the arrangement that the large end 5041 of the piston 504 is matched with the inner wall of the cylinder 502, the outer wall of the baffle ring plate 505 is matched with the inner wall of the cylinder 502, and the small end 5042 of the piston 504 is matched with the inner wall of the baffle ring plate 505 can ensure that the pressure cylinder 5 is divided into three chambers by the piston 504 and the baffle ring plate 505.
The lifting hydraulic cylinder 1 is connected with the walking beam 2, the rodless cavity 101 and the rod cavity 102 of the lifting hydraulic cylinder 1 are communicated with the pressure cylinder 5, so that hydraulic oil in the lifting hydraulic cylinder 1 can be repeatedly utilized, the pressure cylinder 5 is communicated with the gravitational potential energy storage cylinder 3, so that gravitational potential energy generated when the walking beam 2 descends is timely absorbed, kinetic energy is converted into kinetic energy again when the walking beam 2 ascends, the energy loss of a hydraulic system is reduced, and the utilization rate of the hydraulic oil is improved.
It should be noted that the gravitational potential energy storage cylinder 3 is an accumulator.
Further, the energy-saving hydraulic means of marching type heating furnace of this embodiment reforms transform on current equipment basis can, simple structure, it is convenient to reform transform, improves the economic nature of product.
Further, the energy-saving hydraulic device of the walking beam furnace further comprises:
and the energy supplementing cylinder 4 is communicated with the gravitational potential energy storage cylinder 3.
The energy supplementing cylinder 4 is installed in an oil path of the gravitational potential energy storage cylinder 3, and if the gravitational potential energy storage cylinder 3 has pressure loss and flow loss, the energy supplementing cylinder 4 supplements pressure and flow to the gravitational potential energy storage cylinder 3 so as to enable the gravitational potential energy storage cylinder 3 to adapt to working flow and pressure.
Fig. 2 shows a cross-sectional view of a pressurized cylinder according to an embodiment of the present invention.
As shown in FIG. 2, the booster cylinder 5 further includes a front end cap 501 and a rear end cap 506, the front end cap 501 being located at one end of the cylinder body 502 near the large end 5041 of the piston 504, and the rear end cap 506 being provided at the other end of the cylinder body 502.
The front end cover 501 and the rear end cover 506 are arranged to seal the chambers at the two ends of the cylinder 502, so as to achieve a sealing effect.
Further, the distance between baffle ring plate 505 and rear end cap 506 is greater than the length of small end 5042 of piston 504.
The distance between the baffle ring plate 505 and the rear end cover 506 is larger than the length of the small end 5042 of the piston 504, so that the small end 5042 does not touch the rear end cover 506, the small end 5042 of the piston 504 is more easily jacked up after pressure is applied to a chamber where the small end 5042 of the piston 504 is located, the whole operation of the energy-saving hydraulic device of the stepping heating furnace is facilitated, and the operation of the piston 504 is smoother.
Further, the front end cap 501, the cylinder 502, and the large head end 5041 of the piston 504 enclose a first chamber 509, and the first chamber 509 communicates with the rod-less chamber 101.
Further, a displacement sensor 510 is disposed in the first chamber 509.
The displacement of the large end 5041 of the piston 504 can be obtained by arranging the displacement sensor 510, the pressure in the first chamber 509 is calculated according to the displacement of the piston 504, and the pressure in the first chamber 509 is corrected, so that the pressure in the first chamber 509 is more accurate, and the lifting speed of the lifting hydraulic cylinder 1 is favorably controlled.
Further, the large end 5041 of the piston 504, the cylinder 502, and the blocker plate 505 enclose a second chamber 508, and the second chamber 508 communicates with the gravitational potential energy storage cylinder 3.
Further, the small end 5042 of the piston 504, the cylinder 502, the retainer plate 505, and the rear end cap 506 enclose a third chamber 507, and the third chamber 507 is communicated with the rod chamber 102.
It should be noted that a switching valve 6 is provided in a conduit communicating the rod chamber 102 and the third chamber 507.
When the lifting hydraulic cylinder 1 works, hydraulic oil is firstly filled in the gravitational potential energy storage cylinder 3, when the lifting hydraulic cylinder 1 rises (lifts a stepping beam), the gravitational potential energy storage cylinder 3 provides pressure for the second chamber 508, the reversing valve 6 provides pressure for the third chamber 507, so that the piston 504 moves towards the first chamber 509 and further compresses the first chamber 509, the first chamber 509 provides pressure for the rodless chamber 101 and further enables the lifting hydraulic cylinder 1 to lift the stepping beam upwards, when the lifting hydraulic cylinder 1 descends (the stepping beam descends), the reversing valve 6 provides pressure for the rod chamber 102, so that the rodless chamber 101 provides pressure for the first chamber 509, and further enables the piston 504 to move towards the second chamber 508 and the third chamber 507 and further compress the second chamber 508, the pressure in the second chamber 508 is recovered by the gravitational potential energy storage cylinder 3 and is reserved for the next lifting of the lifting hydraulic cylinder 1, and the energy utilization rate is repeatedly increased, the function of energy saving and pressure increasing is realized.
Further, the pressure increasing cylinder 5 further includes a spring 503, one end of the spring 503 is connected to the front end cover 501, and the other end of the spring 503 is connected to the large end 5041 of the piston 504.
The lifting hydraulic pressure 1 cylinder is connected to the walking beam 2.
The spring 503 is set to provide a buffer force for the lifting of the hydraulic lifting cylinder 1, which is beneficial to the stable lifting and descending of the walking beam 2 and improves the motion stability of the walking beam 2.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (9)
1. The energy-saving hydraulic device for the walking beam furnace is characterized by comprising:
the lifting hydraulic cylinder comprises a rod cavity and a rodless cavity;
a gravitational potential energy storage cylinder;
the boosting cylinder comprises a cylinder body, a piston arranged in the cylinder body and a baffle ring plate arranged in the cylinder body, the piston comprises a large end and a small end which are vertically connected, the small end of the piston can penetrate through the baffle ring plate, the large end of the piston cannot penetrate through the baffle ring plate, the cylinder body is divided into three chambers by the piston and the baffle ring plate, and the three chambers are respectively communicated with the rod chamber, the rodless chamber and the gravitational potential energy storage cylinder;
the large end of the piston is matched with the inner wall of the cylinder body, the outer wall of the baffle ring plate is matched with the inner wall of the cylinder body, and the small end of the piston is matched with the inner wall of the baffle ring plate.
2. The energy-saving hydraulic device for the walking beam furnace according to claim 1, wherein the pressurizing cylinder further comprises a front end cover and a rear end cover, the front end cover is located at one end of the cylinder body close to the large end of the piston, and the rear end cover is arranged at the other end of the cylinder body.
3. The energy-saving hydraulic device for the walking beam furnace according to claim 2, wherein the distance between the baffle ring plate and the rear end cover is greater than the length of the small end of the piston.
4. The energy-saving hydraulic device for a walking beam furnace according to claim 2, wherein the front end cover, the cylinder and the large head end of the piston define a first chamber, and the first chamber is communicated with the rodless chamber.
5. The energy-saving hydraulic device for the walking beam furnace according to claim 4, wherein a displacement sensor is disposed in the first chamber.
6. The energy-saving hydraulic device for the walking beam furnace according to claim 2, wherein the big end of the piston, the cylinder body and the baffle ring plate enclose a second chamber, and the second chamber is communicated with the gravitational potential energy storage cylinder.
7. The energy-saving hydraulic apparatus for a walking beam furnace according to claim 2, wherein the small end of the piston, the cylinder, the baffle ring and the rear end cover define a third chamber, and the third chamber is in communication with the rod chamber.
8. The energy-saving hydraulic device for the walking beam furnace according to claim 2, wherein the pressure cylinder further comprises a spring, one end of the spring is connected with the front end cover, and the other end of the spring is connected with the big head end of the piston.
9. The energy-saving hydraulic device for the walking beam furnace according to any one of claims 1 to 8, further comprising:
and the energy supplementing cylinder is communicated with the gravitational potential energy storage cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021478067.3U CN212717478U (en) | 2020-07-24 | 2020-07-24 | Energy-saving hydraulic device of walking beam furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021478067.3U CN212717478U (en) | 2020-07-24 | 2020-07-24 | Energy-saving hydraulic device of walking beam furnace |
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| Publication Number | Publication Date |
|---|---|
| CN212717478U true CN212717478U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021478067.3U Active CN212717478U (en) | 2020-07-24 | 2020-07-24 | Energy-saving hydraulic device of walking beam furnace |
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| Country | Link |
|---|---|
| CN (1) | CN212717478U (en) |
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- 2020-07-24 CN CN202021478067.3U patent/CN212717478U/en active Active
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