CN112431834A - Frame locking device of row straightening machine - Google Patents
Frame locking device of row straightening machine Download PDFInfo
- Publication number
- CN112431834A CN112431834A CN202011384774.0A CN202011384774A CN112431834A CN 112431834 A CN112431834 A CN 112431834A CN 202011384774 A CN202011384774 A CN 202011384774A CN 112431834 A CN112431834 A CN 112431834A
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- locking
- rod
- connecting rod
- end cover
- piston
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- 238000007789 sealing Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/02—Releasable fastening devices locking by rotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
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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
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
- F15B15/068—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the helical type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/89—Use of a hydraulic action
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Actuator (AREA)
Abstract
The invention discloses a rack locking device of a row of straightening machines, which comprises a lock body arranged on a first rack and a cylinder body, wherein the cylinder body is arranged on a second rack corresponding to the lock body; the cylinder body is arranged on the top plate, the locking piston rod is arranged in the cylinder body, and the central axis of the locking piston rod is superposed with the central axis of the central through hole of the lock body; the locking piston rod sequentially comprises a locking head, a connecting rod, a piston connecting rod and a guide rod from outside to inside, and more than two axial guide grooves are uniformly distributed on the surface of the guide rod along the circumference; each guide groove is divided into three sections, the head end and the tail end are provided with straight grooves along the axial direction, and the middle part is provided with 1/4 circles of spiral grooves; a piston is arranged at the piston connecting rod and is matched with the cylinder body; the invention has compact mechanism, high locking speed, high efficiency, large locking force and high reliability, and can improve the roll changing speed and the automation level of the in-row straightening machine.
Description
Technical Field
The invention relates to a locking device used in automatic combination of racks under the scheme that a row of straightening machines adopt racks which can move along the axial direction of straightening rollers.
Background
In the row straightening machine with the axial moving and roll changing mode of the frame, the combined frame mainly comprises a transmission side frame, an operation side frame, a guide rail, a locking device and the like. The operation side frame is generally designed to be movable, and is axially separated from the transmission side frame along the guide rail during roll changing; during the straightening operation, the operation side frame and the transmission side frame are in a folded state. In order to ensure the requirements of rigidity and position precision of the combined rack after folding and reduce the adverse effects of pressing down transmission connection position precision, rack vibration and the like caused by the deformation and displacement of the middle part of the rack, the locking device is utilized to realize the connection and fixation between the middle parts of the transmission side rack and the operation side rack.
In order to simplify the operation in the automatic combination of the frames of the in-row straightening machine, improve the roll changing speed and the roll changing efficiency and improve the automation level of the in-row straightening machine, a novel automatic locking device of the frames of the in-row straightening machine is urgently needed.
Disclosure of Invention
Aiming at the problems, the invention discloses a rack locking device of a row of straightening machines, which adopts hydraulic full-automatic locking operation, has high speed and high reliability, can improve the roll changing speed and the automation level of the row of straightening machines, is favorable for improving the rigidity of the rack and reducing the deformation of a cross beam of the rack.
In order to achieve the aim, the rack locking device of the row straightening machine comprises a lock body arranged on a first rack and a cylinder body, wherein the cylinder body is arranged on a second rack corresponding to the lock body;
a circular hole section and a rectangular hole section are continuously arranged in the lock body; wherein the opening side of the rectangular hole faces the locking piston rod;
the cylinder body consists of a front end cover, a cylinder barrel and a rear end cover which are sequentially sealed, and the front end cover and the rear end cover are provided with central holes;
the locking piston rod sequentially comprises a locking head, a connecting rod, a piston connecting rod and a guide rod from outside to inside, and more than two axial guide grooves are uniformly distributed on the surface of the guide rod along the circumference; each guide groove is divided into three sections, the head section and the tail section are straight grooves along the axial direction, and the middle section is 1/4 circles of spiral grooves; a piston is arranged at the piston connecting rod and is matched with the cylinder barrel; the connecting rod device is arranged in a central hole of the front end cover; the guide rod is assembled in a central hole of the rear end cover; positioning balls are arranged on the rear end cover corresponding to the guide groove sections;
the locking head is a truncated trapezoidal frustum or a rectangular platform, wherein the large bottom side of the truncated trapezoidal frustum is arranged at the front end of the connecting rod, and the center of the truncated trapezoidal frustum is coaxial with the axis of the connecting rod; the big bottom of the trapezoid frustum or the bottom of the rectangle platform is matched with the diameters of the rectangular hole and the circular hole section of the rectangular hole section; the height of the trapezoidal frustum or the rectangular platform is smaller than the length of the circular hole section.
In order to achieve the aim, the invention discloses a locking method of a rack locking device of a row of straightening machines, which comprises the following steps:
1) initially, the locking piston rod is in a retraction state;
2) when high-pressure oil is communicated with the side of the rodless cavity of the cylinder body and the side of the rod cavity is communicated with the oil return pipe, the piston drives the locking piston rod to extend out under the action of the oil pressure of the rodless cavity;
when the first section of the guide groove is finished, the locking head of the locking piston rod is positioned outside the lock body; the locking piston rod continues to extend out, and the middle section of the guide groove is finished at the outer side of the lock body; the locking piston rod continues to extend until the locking piston rod enters the lock body and contacts with the inner surface of the side wall of the bottom of the lock body;
3) the piston contacts with the front end cover, and the locking piston rod 2 stops extending;
4) the rodless cavity side of the cylinder body is connected with the oil return port, the rod cavity side is communicated with the high-pressure oil port, and high-pressure oil enters the rod cavity to drive the piston and lock the piston rod to retract; the spiral part of the guide groove reversely passes through the ball, and the locking piston rod reversely rotates for 90 degrees along the central axis in the circular hole section; the locking piston rod continues to retract, the end face of the locking head connected with the connecting rod is contacted with the inner wall of the lock body, and the oil pressure acting on the piston is transmitted to the lock body through the locking piston rod, so that the first rack and the second rack are locked.
The roller changing device has the advantages of compact mechanism, high locking speed, high efficiency, large locking force and high reliability, can improve the roller changing speed and the automation level of the row of straightening machines, and is favorable for improving the rigidity of the rack and reducing the deformation of the cross beam of the rack.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the invention A-A;
FIG. 3 is a schematic view of a portion of the present invention;
FIG. 4 is a cross-sectional view of the invention B-B;
FIG. 5 is a schematic view of a portion of the present invention;
FIG. 6 is a schematic view of a portion of the present invention;
FIG. 7 is a schematic view of a portion of the present invention;
FIG. 8 is a schematic view of a portion of the present invention;
fig. 9 is a schematic diagram of the working principle of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings.
The invention relates to a rack locking device of a row straightening machine, which comprises a lock body arranged on a first rack and a cylinder body, wherein the cylinder body is arranged on a second rack corresponding to the lock body;
the lock body is internally and continuously provided with a circular hole section and a rectangular hole section, preferably, a conical hole section, a circular hole section and a rectangular hole section; wherein the opening side of the rectangular hole faces the locking piston rod;
the cylinder body consists of a front end cover, a cylinder barrel and a rear end cover which are sequentially sealed, and the front end cover and the rear end cover are provided with central holes;
the locking piston rod sequentially comprises a locking head, a connecting rod, a piston connecting rod and a guide rod from outside to inside, and more than two axial guide grooves are uniformly distributed on the surface of the guide rod along the circumference; each guide groove is divided into three sections, the head section and the tail section are straight grooves along the axial direction, and the middle section is 1/4 circles of spiral grooves; a piston is arranged at the piston connecting rod and is matched with the cylinder barrel; the connecting rod device is arranged in a central hole of the front end cover; the guide rod is assembled in a central hole of the rear end cover; positioning balls are arranged on the rear end cover corresponding to the guide groove sections;
the locking head is a truncated trapezoidal frustum or a rectangular platform, wherein the large bottom side of the truncated trapezoidal frustum is arranged at the front end of the connecting rod, and the center of the truncated trapezoidal frustum is coaxial with the axis of the connecting rod; the big bottom of the trapezoid frustum or the bottom of the rectangle platform is matched with the diameters of the rectangular hole and the circular hole section of the rectangular hole section; the height of the trapezoidal frustum or the rectangular platform is smaller than the length of the circular hole section.
The invention will be further described with reference to the accompanying drawings.
As shown in the attached figures 1-9, the invention relates to a rack locking device of a row of straightening machines, which comprises: the locking mechanism comprises a lock body 1, a locking piston rod 2, a front end cover 3, a cylinder body 8, a piston 6, a piston nut 7, a ball seat 9, a rodless cavity oil port 11, a rodless cavity 12, a rod cavity oil inlet 4, a rod cavity 5, a first sealing ring 18, a second sealing ring 17, a third sealing ring 16, a fourth sealing ring 14, a fifth sealing ring 15, a first ball 20, a second ball 21, a third ball 22, a rack 19 and a top plate 13.
The locking piston rod consists of a locking head 2-1, a connecting rod 2-2, a piston connecting rod 2-3 and a guide rod 2-4, wherein three axial guide grooves, namely a first guide groove 2-5, a second guide groove 2-6 and a third guide groove 2-7, are uniformly distributed on the surface of the guide rod along the circumference; each guide groove is divided into three sections, the head end and the tail end are provided with straight grooves along the axial direction, and the middle part is provided with 1/4 circles of spiral grooves;
one end of the front end cover 3 is connected with one end of the cylinder body 8, and the central through hole of the front end cover is communicated with the central through hole of the cylinder body 8; the rear end cover 10 is arranged at the other end of the cylinder body 8; a connecting rod 2-2 for locking the piston rod 2 is arranged in a central hole of the front end cover 3, and a first sealing ring 18 and a second sealing ring 17 are arranged between the connecting rod 2-2 and the front end cover 3 at one time; a piston 6 and a piston nut 7 are arranged between the piston connecting rod 2-3 and the cylinder body 8, and the piston connecting rod 2-3 penetrates through central through holes of the piston 6 and the piston nut 7; one end of the piston 6 is connected with the connecting rod 2-2, and the other end is connected with the piston nut 7; a third sealing ring 16 and a fourth sealing ring 14 are arranged between the piston 6 and the cylinder 8; a fifth sealing ring 15 is arranged between the piston 6 and the locking piston rod 2; a guide rod 2-4 of the locking piston rod 2 is arranged in a central hole of a rear end cover 10, a ball seat 9 is arranged between the guide rod 2-4 and the rear end cover 10, the outer surface of the ball seat 9 is connected with the rear end cover 10, three grooves are uniformly distributed on the inner surface of the ball seat 9 along the circumference, and a first ball 20, a second ball 21 and a third ball 22 are arranged among the grooves, a first guide groove 2-5, a second guide groove 2-6 and a third guide groove 2-7 on the guide rod; a cavity formed by the cylinder body 8 and the guide rod 2-2 part of the locking piston rod 2 is a rod cavity 5; the rod cavity oil port 4 is arranged on the front end cover 3 and is communicated with the rod cavity 5; a cavity formed by the cylinder 8 and the guide rod 2-4 of the locking piston rod 2 is a rodless cavity 12; the rodless cavity oil port 11 is arranged on the rear end cover 10 and is communicated with the rodless cavity 12;
three sections of through holes, namely a conical hole 1-1, a circular hole 1-2 and a rectangular hole 1-3, are arranged in the lock body 1; one end of a conical hole 2-1 of the lock body 1 is connected with the frame 19;
the cylinder body 8 is arranged on the top plate 13, and the central axis of the locking piston rod 2 is superposed with the central axis of the central through hole of the lock body 1;
the working principle of one embodiment of the invention is as follows:
initially, the locking piston rod 2 is in a retracted state with one end of its guide rod 2-4 in contact with the rear end cap 10.
When the rodless cavity oil port 11 is communicated with high-pressure oil, and the rod cavity oil port 4 is communicated with an oil return pipe, the high-pressure oil enters the rodless cavity 12 from the rodless cavity oil port 11, and the piston 6 drives the locking piston rod 2 to extend out under the action of the oil pressure of the rodless cavity 12.
The first ball 20, the second ball 21 and the third ball 22 arranged in the groove of the ball seat 9 respectively slide relative to the first guide groove 2-5, the second guide groove 2-6 and the third guide groove 2-7 on the guide rod 2-4;
after 1/4 turns of the helical guide groove portion pass the ball, the locking piston rod 2 is rotated 90 ° along the central axis;
then, the piston 6 contacts with the front end cover 3, and the locking piston rod 2 stops extending;
the lock body 1 moves towards the locking piston rod 2 along with the frame 19, the locking head 2-1 of the locking piston rod 2 is inserted into the lock body 1 from the rectangular hole 1-3 of the lock body 1 until contacting with the inner surface of the conical hole 1-1, and the frame 19 stops;
the rodless cavity oil port 11 is connected with an oil return port, the rod cavity oil port 4 is communicated with a high-pressure oil port, and high-pressure oil enters the rod cavity 5 to drive the piston 6 and the locking piston rod 2 to retract; the spiral part of the guide groove reversely passes through the ball, and the locking piston rod 2 reversely rotates for 90 degrees along the central axis; the locking piston rod 2 continues to retract, the end face of the locking head 2-1 connected with the connecting rod 2-2 is contacted with the inner wall of the lock body 1, and the oil hydraulic pressure acting on the piston 6 is transmitted to the lock body 1 through the locking piston rod 2, so that the frame 19 connected with the lock body is locked. When the roller changing operation is needed, the locking piston rod 2 extends out under the action of oil pressure, the spiral guide groove and the ball act, so that the locking piston rod 2 rotates 90 degrees, the lock body 1 moves along with the rack 19 to be separated from the locking piston rod 2, and the unlocking operation of the rack 19 is completed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (1)
1. The utility model provides a in bank straightener frame locking device which characterized in that: the lock comprises a lock body arranged on a first frame and a cylinder body which is arranged on a second frame corresponding to the lock body, wherein a locking piston rod is arranged in the cylinder body, and the central axis of the locking piston rod is superposed with the central axis of a central through hole of the lock body;
a circular hole section and a rectangular hole section are continuously arranged in the lock body; wherein the opening side of the rectangular hole faces the locking piston rod;
the cylinder body consists of a front end cover, a cylinder barrel and a rear end cover which are sequentially sealed, and the front end cover and the rear end cover are provided with central holes;
the locking piston rod sequentially comprises a locking head, a connecting rod, a piston connecting rod and a guide rod from outside to inside, and more than two axial guide grooves are uniformly distributed on the surface of the guide rod along the circumference; each guide groove is divided into three sections, the head section and the tail section are straight grooves along the axial direction, and the middle section is 1/4 circles of spiral grooves; a piston is arranged at the piston connecting rod and is matched with the cylinder barrel; the connecting rod device is arranged in a central hole of the front end cover; the guide rod is assembled in a central hole of the rear end cover; positioning balls are arranged on the rear end cover corresponding to the guide groove sections;
the locking head is a truncated trapezoidal frustum or a rectangular platform, wherein the large bottom side of the truncated trapezoidal frustum is arranged at the front end of the connecting rod, and the center of the truncated trapezoidal frustum is coaxial with the axis of the connecting rod; the big bottom of the trapezoid frustum or the bottom of the rectangle platform is matched with the diameters of the rectangular hole and the circular hole section of the rectangular hole section; the height of the trapezoidal frustum or the rectangular platform is smaller than the length of the circular hole section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011384774.0A CN112431834A (en) | 2020-11-30 | 2020-11-30 | Frame locking device of row straightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011384774.0A CN112431834A (en) | 2020-11-30 | 2020-11-30 | Frame locking device of row straightening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112431834A true CN112431834A (en) | 2021-03-02 |
Family
ID=74698152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011384774.0A Pending CN112431834A (en) | 2020-11-30 | 2020-11-30 | Frame locking device of row straightening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112431834A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309937A (en) * | 2021-07-28 | 2021-08-27 | 浙江索特重工科技有限公司 | High-temperature-resistant hydraulic lock with wedge-shaped chuck |
-
2020
- 2020-11-30 CN CN202011384774.0A patent/CN112431834A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309937A (en) * | 2021-07-28 | 2021-08-27 | 浙江索特重工科技有限公司 | High-temperature-resistant hydraulic lock with wedge-shaped chuck |
| CN113309937B (en) * | 2021-07-28 | 2021-10-15 | 浙江索特重工科技有限公司 | High-temperature-resistant hydraulic lock with wedge-shaped chuck |
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