CN112196860A - Winding drum oil circuit device and control method thereof - Google Patents
Winding drum oil circuit device and control method thereof Download PDFInfo
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- CN112196860A CN112196860A CN202011050026.9A CN202011050026A CN112196860A CN 112196860 A CN112196860 A CN 112196860A CN 202011050026 A CN202011050026 A CN 202011050026A CN 112196860 A CN112196860 A CN 112196860A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/32—Tongs or gripping means specially adapted for reeling operations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/027—Check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1485—Special measures for cooling or heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
- F15B2013/004—Cartridge valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to the technical field of plate coiling equipment, in particular to a winding drum oil circuit device and a control method thereof. The hydraulic oil from the circulating pump continuously cools the jaw cylinder, so that the service environment of the jaw cylinder is improved, and the service life of the jaw cylinder is prolonged; the four-way rotary joint can complete the conversion of five oil ways, simplify the hydraulic control loop and the rotary joint and reduce the cost.
Description
Technical Field
The invention relates to the technical field of plate reeling equipment, in particular to a winding drum oil circuit device and a control method thereof.
Background
The existing oil circuit device of the winding drum and the control method thereof comprise that an expansion and contraction cylinder is arranged between a rotary joint and a drum sleeve, the drum sleeve is provided with a lantern ring, oil circuits are arranged in the drum sleeve and the lantern ring, an external rubber pipe is arranged on the lantern ring to be connected with a sector plate provided with a jaw cylinder, hydraulic oil respectively reaches the expansion and contraction cylinder and the drum sleeve through the rotary joint and the lantern ring to the jaw cylinder through hydraulic loop control, so as to realize the expansion and contraction functions of the expansion and contraction cylinder and the jaw cylinder clamping function, as shown in figures 1 and 2, wherein figure 1 is a front view of the oil circuit device of the winding drum in the; FIG. 2 is a schematic diagram of a control of a prior art oil circuit device of a winding drum, in which a rotary joint has three oil circuit joints, a diameter expansion joint of the winding drum supplies oil, and a diameter reduction joint of the winding drum returns oil to realize diameter expansion of the winding drum; the jaw clamping joint is supplied with oil to clamp the strip steel by the jaw, and the two-position reversing valves in the hydraulic diagram shown in figure 2 are both in the a position. Oil is returned from the reel diameter expansion joint, and oil is supplied to the reel diameter reduction joint to realize diameter reduction of the reel; the jaw clamps the joint to return oil, so that the jaw loosens the strip steel, and the two-position reversing valves in the hydraulic diagram shown in figure 2 are both in the b position. However, in practical application, the sealing of the piston of the jaw cylinder is in a high-temperature steel coil environment for a long time, so that the aging failure of the sealing is easily accelerated, the jaw cylinder leaks oil, and the production efficiency and the quality of a strip steel product are affected.
Disclosure of Invention
The invention aims to provide a winding drum oil circuit device and a control method thereof, which solve the technical problem that the jaw cylinder seal is short in service life under a high-temperature environment all the time and realize real-time cooling of the jaw cylinder.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a winding drum oil circuit device comprises an expansion and contraction cylinder, a rotary joint arranged at the front end of the expansion and contraction cylinder and a cylinder sleeve arranged at the rear end of the expansion and contraction cylinder, wherein the rear end of the cylinder sleeve is connected with a lantern ring, the rear end of the lantern ring is connected with a sector plate, a jaw cylinder is arranged in the sector plate, and a joint first passage, a joint second passage, a joint third passage and a joint fourth passage are arranged in the rotary joint; a first barrel sleeve passage, a second barrel sleeve passage and a third barrel sleeve passage are arranged in the barrel sleeve; a lantern ring first passage, a lantern ring second passage and a lantern ring third passage are arranged in the lantern ring;
the first joint passage is communicated with a rodless cavity of the expansion and contraction cylinder;
the joint second passage is communicated with a rod cavity of the expansion cylinder;
the third joint passage is communicated with the rodless cavity of the jaw cylinder through the first sleeve passage and the first sleeve ring passage;
the fourth joint passage is communicated with an oil passage inlet on the outer wall of the jaw cylinder barrel through a barrel sleeve second passage and a sleeve ring second passage;
the first joint passage is communicated with an oil passage outlet of the outer wall of the jaw cylinder barrel through a one-way valve, a barrel sleeve third passage and a sleeve ring third passage.
Preferably, the first loop passage and the jaw cylinder rodless cavity, the second loop passage and the jaw cylinder outer wall oil path inlet, and the third loop passage and the jaw cylinder outer wall oil path outlet are communicated by adopting external rubber tubes.
Preferably, the number of the jaw cylinders is multiple, and oil passages on the outer wall of the cylinder barrel of the jaw cylinder are in a series structure.
Preferably, the check valve is a cartridge type structure check valve.
The invention also provides a control method based on the winding drum oil circuit device, which comprises the following steps:
expansion and contraction of the expansion and contraction cylinder:
the hydraulic oil of the main pump flows to a rodless cavity of the expansion and contraction cylinder through a first joint passage, the hydraulic oil of the main pump flows to a rod cavity of the expansion and contraction cylinder through a second joint passage, the rod cavity of the expansion and contraction cylinder supplies oil, and the rodless cavity returns oil, so that the expansion of the expansion and contraction cylinder is realized;
the hydraulic oil of the main pump flows to a rodless cavity of the expansion and contraction cylinder through a first joint passage, the hydraulic oil of the main pump flows to a rod cavity of the expansion and contraction cylinder through a second joint passage, the rod cavity of the expansion and contraction cylinder returns oil, and the rodless cavity supplies oil to realize the contraction of the expansion and contraction cylinder;
clamping and loosening of the jaw cylinder:
the hydraulic oil of the main pump flows to a rodless cavity of the jaw cylinder through a third joint passage, a first sleeve passage and a first sleeve ring passage, and supplies oil to the rodless cavity of the jaw cylinder to clamp the jaw cylinder;
hydraulic oil in a rodless cavity of the jaw cylinder passes through the lantern ring first passage, the cylinder sleeve first passage and the joint third passage, and the oil return tank realizes the loosening of the jaw cylinder;
and (3) cooling the jaw cylinder:
and hydraulic oil of the circulating pump flows through the joint fourth passage, the sleeve second passage and the sleeve ring second passage to the oil way inlet of the outer wall of the jaw cylinder barrel, and then flows through the sleeve ring third passage, the sleeve third passage, the one-way valve and the joint first passage oil return tank from the oil way outlet of the outer wall of the jaw cylinder barrel, so that the jaw cylinder is cooled.
The oil circuit device of the winding drum comprises a stretching and shrinking cylinder, a rotary joint arranged at the front end of the stretching and shrinking cylinder and a sleeve arranged at the rear end of the stretching and shrinking cylinder, wherein the rear end of the sleeve is connected with a lantern ring, three oil circuits are arranged on the sleeve and the lantern ring, the rear end of the lantern ring is connected to a sector plate, a jaw cylinder is arranged in the sector plate, and the oil circuits in the sleeve and the lantern ring are communicated with the oil circuits in the sector plate through an external rubber pipe. The rotary joint is of a four-way structure. The oil path channel between the expansion cylinder and the cylinder sleeve is communicated by adopting a transition joint. The first passage of the rotary joint is communicated with the rodless cavity of the expansion and contraction cylinder, the second passage of the rotary joint is communicated with the rod cavity of the expansion and contraction cylinder, and the third passage of the rotary joint is communicated with the rodless cavity of the jaw cylinder through the first passage of the sleeve and the lantern ring. And the fourth passage of the rotary joint is communicated with the oil passage inlet of the outer wall of the jaw cylinder barrel through the sleeve and the second passage of the lantern ring.
The jaw cylinders are multiple, and oil passages on the outer wall of the cylinder barrel of the jaw cylinders are of a series structure;
the first passage of the rotary joint is communicated with an oil passage outlet on the outer wall of the jaw cylinder barrel through a third passage of the check valve, the sleeve and the sleeve ring;
a control method based on a winding drum oil circuit device comprises expansion and contraction cylinder hydraulic control, jaw cylinder clamping hydraulic control and jaw cylinder cooling hydraulic control; the hydraulic control of the expansion and contraction cylinder adopts main pump hydraulic oil to flow to the expansion and contraction cylinder through a pressure reducing valve, a one-way valve, a two-position reversing valve cross position and a one-way throttle valve, oil is supplied to a rod cavity of the expansion and contraction cylinder, and oil is returned without the rod cavity;
the jaw cylinder clamping hydraulic control adopts main pump hydraulic oil to flow to the jaw cylinder through a two-position reversing valve parallel position and a one-way throttle valve to supply oil to a rodless cavity of the jaw cylinder;
when the two-position reversing valve crosses the position in the hydraulic control of the collapsible cylinder, the jaw cylinder cooling hydraulic control adopts circulating pump hydraulic oil to pass through the two-position reversing valve parallel position and the one-way throttle valve to reach the outer wall of the jaw cylinder barrel, the one-way valve, the rodless cavity of the collapsible cylinder and the rotary joint first channel oil return tank;
when the two-position reversing valve in the expansion and contraction cylinder hydraulic control is in a cross position, the jaw cylinder clamps the parallel position of the two-position reversing valve in the hydraulic control, and the jaw cylinder cools the parallel position of the two-position reversing valve in the hydraulic control to simultaneously act.
When the two-position reversing valve is in parallel position in the hydraulic control of the expansion and contraction cylinder, the rodless cavity of the expansion and contraction cylinder supplies oil, the rod cavity returns oil, and the jaw cylinder cools and hydraulically controls the two-position reversing valve to be in a cross position and to act simultaneously.
The invention changes the rotary joint of three oil way joints into four oil way joints; meanwhile, a one-way valve is arranged on the expansion and contraction cylinder; and a cylinder sleeve and a sector plate oil passage are correspondingly added, so that hydraulic oil of the hydraulic circulating pump is introduced into the outer ring of the jaw cylinder, and sealed cooling is realized.
Compared with the prior art, the invention has the following beneficial effects:
in the winding drum oil circuit device and the control method thereof, hydraulic oil from a circulating pump is controlled by a hydraulic valve to pass through a rotary joint, an expansion and contraction cylinder, a cylinder sleeve and an external rubber pipe to the outer wall of a cylinder barrel of a jaw cylinder in a sector plate, and the hydraulic oil circulates from the outer wall of the cylinder barrel to an oil tank through another external rubber pipe, the cylinder sleeve, a one-way valve, a rodless cavity oil circuit of the expansion and contraction cylinder, the rotary joint and the hydraulic valve, so that the aim of continuously cooling the jaw cylinder is fulfilled, the sealing working environment of a piston of the jaw cylinder is improved, and the service. The oil supply of the rodless cavity of the expansion and contraction cylinder is realized, when the oil returns from the rod cavity, the oil supply of the hydraulic oil from the circulating pump is stopped under the control of the hydraulic valve, and meanwhile, the oil supply of the rodless cavity of the expansion and contraction cylinder is blocked and does not enter the jaw cylinder in the sector plate due to the reverse stopping function of the one-way valve between the cylinder sleeve and the expansion and contraction cylinder, so that the normal expansion and contraction functions of the expansion and contraction cylinder are ensured, the four-way rotary joint is realized to complete the conversion of five oil ways, a hydraulic control loop and the rotary joint are simplified.
Drawings
FIG. 1 is a front view of a prior art spool oil circuit arrangement;
FIG. 2 is a schematic diagram of a prior art spool oil circuit arrangement control;
FIG. 3 is a front view of the spool oil circuit arrangement of the present invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a D-D view at the collar of FIG. 3;
FIG. 6 is a K-K plot of FIG. 5;
FIG. 7 is another front view of the spool oil circuit arrangement of the present invention;
FIG. 8 is a schematic view of a portion (sector plate inner jaw cylinder oil passage) of FIG. 7;
FIG. 9 is a schematic control diagram of the spool oil circuit arrangement of the present invention;
in the figure, 1: rotary joint, 1-1: connector first path, 1-2: connector second path, 1-3: connector third path, 1-4: joint fourth path, 2: expansion and contraction cylinder, 3: transition joint, 4: barrel sleeve, 5: collar, 6: jaw cylinder, 7: sector plate, 8, 9, 10: external oil pipe, 8-1: a collar-on oil pipe joint, 8-2: oil pipe joint on sector plate, 11-1, 11-2, 11-3: two-position directional control valve, 12: one-way throttle valve, 13: pressure reducing valve, 14, 15: check valve, 16, 17, 18: is externally connected with an oil pipe connecting hole.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description.
Example 1
As shown in fig. 3-8, a winding drum oil circuit device comprises an expansion cylinder 2 installed on a sleeve 4 provided with three passages, wherein a four-passage rotary joint 1 is installed at the other end of the expansion cylinder 2, a three-passage lantern ring 5 is installed at the other end of the sleeve 4, three external oil pipes 8, 9 and 10 are installed on the lantern ring 5 to a sector plate 7, and a plurality of jaw cylinders 6 are installed in the sector plate 7. A joint first passage 1-1, a joint second passage 1-2, a joint third passage 1-3 and a joint fourth passage 1-4 are arranged in the rotary joint 1; a first barrel sleeve passage, a second barrel sleeve passage and a third barrel sleeve passage are arranged in the barrel sleeve 4; a first lantern ring passage, a second lantern ring passage and a third lantern ring passage are arranged in the lantern ring 5;
the first joint passage 1-1 is communicated with a rodless cavity of the expansion cylinder 2;
the joint second passage 1-2 is communicated with a rod cavity of the expansion cylinder 2;
the third joint passage 1-3 is communicated with a rodless cavity of the jaw cylinder 6 through a sleeve first passage and a sleeve ring first passage;
the fourth joint passage 1-4 is communicated with an oil way inlet on the outer wall of the jaw cylinder barrel through a second sleeve passage and a second sleeve ring passage;
the first joint passage 1-1 is communicated with an oil passage outlet on the outer wall of the jaw cylinder barrel through a one-way valve 15, a barrel sleeve third passage and a sleeve ring third passage.
The first passage of the lantern ring is communicated with a rodless cavity of the jaw cylinder 6, the second passage of the lantern ring is communicated with an oil path inlet of the outer wall of the cylinder barrel of the jaw cylinder, and the third passage of the lantern ring is communicated with an oil path outlet of the outer wall of the cylinder barrel of the jaw cylinder by external rubber pipes 8, 9 and 10.
The jaw cylinders 6 are multiple, and oil passages on the outer wall of the cylinder barrel of the jaw cylinders are of a series structure.
The one- way valves 14 and 15 are plug-in type structure one-way valves.
The inner hole for placing the jaw cylinder is formed in the sector plate 7, different oil ducts are formed in the sector plate, the jaw cylinder is operated and cooled, namely, the hole for installing the jaw cylinder and the oil ducts are formed in the sector plate, the oil ducts are respectively connected with the external oil pipes 8, 9 and 10 through the external oil pipe connecting holes 16, 17 and 18, the external oil pipes 8 are connected with the oil ways of the lantern ring 5 and the sector plate 7 through the three external oil pipes 8, 9 and 10, and the external oil pipes 8 are respectively connected with the lantern ring 5 and the sector plate 7 through the lantern ring oil pipe connector 8-1 and the sector plate oil pipe connector 8-2.
The oil path channel between the expansion cylinder 2 and the cylinder sleeve 4 is communicated by a transition joint 3.
The invention also provides a control method based on the winding drum oil circuit device, which comprises the following steps:
expansion and contraction of the expansion and contraction cylinder 2:
the hydraulic oil of the main pump flows to a rodless cavity of the expansion and contraction cylinder through a first passage 1-1 of a connector, the hydraulic oil of the main pump flows to a rod cavity of the expansion and contraction cylinder through a second passage 1-2 of the connector, the rod cavity of the expansion and contraction cylinder supplies oil, and the rodless cavity returns oil, so that the expansion of the expansion and contraction cylinder is realized;
the hydraulic oil of the main pump flows to a rodless cavity of the expansion and contraction cylinder through a first joint passage 1-1, the hydraulic oil of the main pump flows to a rod cavity of the expansion and contraction cylinder through a second joint passage 1-2, the rod cavity of the expansion and contraction cylinder returns oil, and the rodless cavity supplies oil to realize the contraction of the expansion and contraction cylinder;
clamping and loosening of the jaw cylinder:
the hydraulic oil of the main pump flows to a rodless cavity of the jaw cylinder 6 through the third joint passage 1-3, the first sleeve passage and the first sleeve ring passage, and supplies oil to the rodless cavity of the jaw cylinder to clamp the jaw cylinder;
hydraulic oil in a rodless cavity of the jaw cylinder passes through the lantern ring first passage, the sleeve first passage and the joint third passage 1-3, and the oil return tank realizes the loosening of the jaw cylinder 6;
and (3) cooling the jaw cylinder:
the hydraulic oil of the circulating pump flows through the joint fourth passage 1-4, the sleeve second passage and the sleeve ring second passage to the outer wall of the jaw cylinder barrel, and then flows through the sleeve ring third passage, the sleeve third passage, the one-way valve 15 and the joint first passage 1-1 from the outer wall of the jaw cylinder barrel to return to the oil tank, so that the jaw cylinder is cooled.
As shown in FIG. 9, the hydraulic oil from the circulating pump flows through the position a of the two-position directional control valve 11-1 to the outer wall of the cylinder barrel of the jaw cylinder 6 and then flows through the one-way valve 15, the one-way throttle valve 12 and the position a oil return tank of the two-position directional control valve 11-2, the hydraulic oil from the main pump flows through the two-position directional control valve 11-3 and the one-way throttle valve 12 to the jaw cylinder piston, and the hydraulic oil from the main pump flows through the pressure reducing valve 13, the one-way valve 14, the two-position directional control valve 11-2 and the one-way throttle.
When the oil way of the winding drum is controlled, hydraulic oil (the pressure is 12-14mpa) from a main pump passes through a pressure reducing valve 13, a one-way valve 14, an a-position cross position of a two-position reversing valve 11-2, a one-way throttle valve 12, a first joint channel 1-1 and a second joint channel 1-2 to realize oil supply of a rod cavity of the expansion and contraction cylinder and oil return of a rodless cavity, so that the diameter of the winding drum is expanded. Meanwhile, hydraulic oil from a main pump passes through the a-position parallel position of the two-position reversing valve 11-3, the one-way throttle valve 12, the third joint channel 1-3, the first sleeve channel and the first sleeve ring channel, and then is externally connected with an oil pipe 8 to a rodless cavity of the jaw cylinder in the sector plate, so that the jaw cylinder is clamped. Meanwhile, hydraulic oil (with the pressure of 0.3-0.6mpa) from a circulating pump flows through the a-position parallel position of the two-position reversing valve 11-1, then flows through the joint fourth passage 1-4, the sleeve second passage and the sleeve second passage, flows to one side of the outer wall of the cylinder barrel of the jaw cylinder in the sector plate from the external oil pipe 9, flows out of the other side of the outer wall of the cylinder barrel and enters the outer wall of the cylinder barrel of the next jaw cylinder, flows out of the outer wall of the cylinder barrel of the last jaw cylinder through the external oil pipe 9, the sleeve third passage and the sleeve third passage, passes through the one-way valve 15 arranged in the expansion and contraction cylinder, and flows through the a-position cross oil return tank connected with the first passage 1-1, the one-way throttle valve 12 and the two-position reversing valve 11-. The purpose that when the winding drum expands the diameter and the jaw cylinder is clamped, the hydraulic oil of the circulating pump continuously cools the jaw cylinder is achieved, so that the jaw clamping tape head and the winding drum expanded-diameter steel coil are met, and steel rolling production is achieved in the cooling jaw cylinder sealing environment.
The hydraulic oil pressure from the main pump passes through a pressure reducing valve 13, a one-way valve 14, a b-position parallel position of a two-position reversing valve 11-2, a one-way throttle valve 12, a first joint channel 1-1 and a second joint channel 1-2 to realize oil return of a rod cavity and oil supply of a rodless cavity of the expansion and contraction cylinder, so that the diameter of the winding drum is reduced. At the moment, hydraulic oil needing to be fed from the circulating pump stops being supplied to the fourth channel of the rotary joint through the b-position cross position of the two-position reversing valve 11-1, and meanwhile, due to the reverse stopping function of the one-way valve 15 in the expansion and contraction cylinder, the hydraulic oil from the main pump is blocked at the one-way valve and does not flow to the third channel of the cylinder sleeve and the third channel of the lantern ring, so that the safety and the stability of the circulating oil system of the jaw cylinder are realized. Meanwhile, when hydraulic oil from the main pump is at the b-position cross position of the two-position reversing valve 11-3, the rodless cavity hydraulic oil of the jaw cylinder flows through the external oil pipe 8, the first channel of the sleeve and the first channel of the lantern ring, the third channel 1-3 of the joint, the one-way throttle valve 12 and the through-position cross position oil return tank. Thereby realizing that the jaw cylinder loosens the belt head, the winding drum shrinks, and the coil is unloaded under the condition of stopping cooling the jaw cylinder.
A pressing strip is arranged above the jaw cylinder, a spring is arranged below the pressing strip, and the jaw cylinder is supplied with oil through a rodless cavity and overcomes the resistance of the spring; when the rodless cavity is not supplied with oil, the jaw cylinder is reset by the force of the spring, and the oil returns to the oil tank.
The hydraulic oil from the circulating pump continuously cools the jaw cylinder, so that the service environment of the jaw cylinder is improved, and the service life of the jaw cylinder is prolonged; the four-way rotary joint can complete the conversion of five oil ways, simplify the hydraulic control loop and the rotary joint and reduce the cost. Usage units may be used to improve equipment maintenance capabilities. Manufacturers can improve the equipment capacity and competitiveness.
Conventional technical knowledge in the art can be used for the details which are not described in the present invention. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. A winding drum oil circuit device comprises an expansion and contraction cylinder, a rotary joint arranged at the front end of the expansion and contraction cylinder and a cylinder sleeve arranged at the rear end of the expansion and contraction cylinder, wherein the rear end of the cylinder sleeve is connected with a lantern ring, the rear end of the lantern ring is connected with a sector plate, and a jaw cylinder is arranged in the sector plate; a first barrel sleeve passage, a second barrel sleeve passage and a third barrel sleeve passage are arranged in the barrel sleeve; a lantern ring first passage, a lantern ring second passage and a lantern ring third passage are arranged in the lantern ring;
the first joint passage is communicated with a rodless cavity of the expansion and contraction cylinder;
the joint second passage is communicated with a rod cavity of the expansion cylinder;
the third joint passage is communicated with the rodless cavity of the jaw cylinder through the first sleeve passage and the first sleeve ring passage;
the fourth joint passage is communicated with an oil passage inlet on the outer wall of the jaw cylinder barrel through a barrel sleeve second passage and a sleeve ring second passage;
the first joint passage is communicated with an oil passage outlet of the outer wall of the jaw cylinder barrel through a one-way valve, a barrel sleeve third passage and a sleeve ring third passage.
2. The oil circuit device of the winding drum as claimed in claim 1, wherein the first passage of the lantern ring is communicated with the rodless cavity of the jaw cylinder, the second passage of the lantern ring is communicated with the oil circuit inlet of the outer wall of the cylinder barrel of the jaw cylinder, and the third passage of the lantern ring is communicated with the oil circuit outlet of the outer wall of the cylinder barrel of the jaw cylinder by external rubber pipes.
3. The oil circuit device of the winding drum as claimed in claim 1, wherein the jaw cylinders are multiple, and the oil circuits on the outer walls of the cylinder barrels of the jaw cylinders are in a series structure.
4. The spool oil passage device of claim 1, wherein the check valve is a cartridge-type structure check valve.
5. A control method based on the reel oil circuit device of claim 1, comprising the following steps:
expansion and contraction of the expansion and contraction cylinder:
the hydraulic oil of the main pump flows to a rodless cavity of the expansion and contraction cylinder through a first joint passage, the hydraulic oil of the main pump flows to a rod cavity of the expansion and contraction cylinder through a second joint passage, the rod cavity of the expansion and contraction cylinder supplies oil, and the rodless cavity returns oil, so that the expansion of the expansion and contraction cylinder is realized;
the hydraulic oil of the main pump flows to a rodless cavity of the expansion and contraction cylinder through a first joint passage, the hydraulic oil of the main pump flows to a rod cavity of the expansion and contraction cylinder through a second joint passage, the rod cavity of the expansion and contraction cylinder returns oil, and the rodless cavity supplies oil to realize the contraction of the expansion and contraction cylinder;
clamping and loosening of the jaw cylinder:
the hydraulic oil of the main pump flows to a rodless cavity of the jaw cylinder through a third joint passage, a first sleeve passage and a first sleeve ring passage, and supplies oil to the rodless cavity of the jaw cylinder to clamp the jaw cylinder;
hydraulic oil in a rodless cavity of the jaw cylinder passes through the lantern ring first passage, the cylinder sleeve first passage and the joint third passage, and the oil return tank realizes the loosening of the jaw cylinder;
and (3) cooling the jaw cylinder:
and hydraulic oil of the circulating pump flows through the joint fourth passage, the sleeve second passage and the sleeve ring second passage to the oil way inlet of the outer wall of the jaw cylinder barrel, and then flows through the sleeve ring third passage, the sleeve third passage, the one-way valve and the joint first passage oil return tank from the oil way outlet of the outer wall of the jaw cylinder barrel, so that the jaw cylinder is cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011050026.9A CN112196860B (en) | 2020-09-29 | 2020-09-29 | Winding drum oil circuit device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011050026.9A CN112196860B (en) | 2020-09-29 | 2020-09-29 | Winding drum oil circuit device and control method thereof |
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| CN112196860B CN112196860B (en) | 2022-11-22 |
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| CN101776101A (en) * | 2009-12-29 | 2010-07-14 | 中国重型机械研究院有限公司 | Self cooling and lubrication type frequently reciprocating hydraulic cylinder |
| CN101780891A (en) * | 2009-11-12 | 2010-07-21 | 无锡五冶金属压延有限公司 | Expansion and reduction rotary joint device of a steel belt hydraulic coiler |
| CN102506254A (en) * | 2011-09-30 | 2012-06-20 | 莱芜钢铁集团有限公司 | Crossover coupler for hydraulic oil circuits and reeling machine |
| CN103008392A (en) * | 2012-12-31 | 2013-04-03 | 衡阳中钢衡重设备有限公司 | Collapsible power assembly for coiler mandrel |
| CN204025213U (en) * | 2014-07-29 | 2014-12-17 | 上海宝钢工业技术服务有限公司 | The cooling of high temperature cylinder plunger and leakage releasing structure |
| CN208810836U (en) * | 2018-08-28 | 2019-05-03 | 上海宝骜工业技术服务有限公司 | A kind of improved strip coiling machine hollow shaft of oil circuit |
| CN210944329U (en) * | 2019-11-27 | 2020-07-07 | 莱芜钢铁集团有限公司 | Oil circuit device for jaw of winding drum |
| CN112303058A (en) * | 2020-10-23 | 2021-02-02 | 艾默斯智能科技(深圳)有限公司 | Hydraulic cylinder and hot runner device with same |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3577831A (en) * | 1969-06-27 | 1971-05-04 | Charles L Brinkman | Positioning device with automatic return stroke |
| JPH10180337A (en) * | 1996-11-06 | 1998-07-07 | Kotobuki Sangyo Kk | Interval regulating mechanism in driving device and roll guide |
| CN101780891A (en) * | 2009-11-12 | 2010-07-21 | 无锡五冶金属压延有限公司 | Expansion and reduction rotary joint device of a steel belt hydraulic coiler |
| CN101776101A (en) * | 2009-12-29 | 2010-07-14 | 中国重型机械研究院有限公司 | Self cooling and lubrication type frequently reciprocating hydraulic cylinder |
| CN102506254A (en) * | 2011-09-30 | 2012-06-20 | 莱芜钢铁集团有限公司 | Crossover coupler for hydraulic oil circuits and reeling machine |
| CN103008392A (en) * | 2012-12-31 | 2013-04-03 | 衡阳中钢衡重设备有限公司 | Collapsible power assembly for coiler mandrel |
| CN204025213U (en) * | 2014-07-29 | 2014-12-17 | 上海宝钢工业技术服务有限公司 | The cooling of high temperature cylinder plunger and leakage releasing structure |
| CN208810836U (en) * | 2018-08-28 | 2019-05-03 | 上海宝骜工业技术服务有限公司 | A kind of improved strip coiling machine hollow shaft of oil circuit |
| CN210944329U (en) * | 2019-11-27 | 2020-07-07 | 莱芜钢铁集团有限公司 | Oil circuit device for jaw of winding drum |
| CN112303058A (en) * | 2020-10-23 | 2021-02-02 | 艾默斯智能科技(深圳)有限公司 | Hydraulic cylinder and hot runner device with same |
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| Publication number | Publication date |
|---|---|
| CN112196860B (en) | 2022-11-22 |
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