WO2018072228A1 - 一种垂直提升系统过卷缓冲装置及方法 - Google Patents
一种垂直提升系统过卷缓冲装置及方法 Download PDFInfo
- Publication number
- WO2018072228A1 WO2018072228A1 PCT/CN2016/103942 CN2016103942W WO2018072228A1 WO 2018072228 A1 WO2018072228 A1 WO 2018072228A1 CN 2016103942 W CN2016103942 W CN 2016103942W WO 2018072228 A1 WO2018072228 A1 WO 2018072228A1
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- WIPO (PCT)
- Prior art keywords
- buffer
- hydraulic cylinder
- piston rod
- lifting container
- hydraulic
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/04—Mining-hoist cars or cages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/02—Hoistway equipment mounted in head-frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/08—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
Definitions
- the invention relates to the technical field of weight lifting, and in particular to a vertical lifting system over-buffering device and method.
- the mine shaft hoisting system Compared with other vertical shaft hoisting systems, the mine shaft hoisting system has the characteristics of large capacity, fast running speed, continuous use and large damage caused by over-winding. Therefore, it is necessary to set corresponding over-volume buffering device for the mine shaft hoisting system.
- it is generally accepted and adopted in the mine shafting system is a friction energy absorption type over-volume buffer device and a steel belt plastic deformation energy absorption type over-volume buffer device. Friction-absorbing energy-type over-buffering devices, due to environmental changes, such as temperature, humidity, and media, can cause changes in the coefficient of friction, which ultimately limits its effectiveness.
- the steel strip plastic deformation energy absorption type over-volume buffer device has the braking performance affected by the steel strip steel, and the steel strip is elongated and thinned during braking, and the steel strip becomes thin and easy to break when subjected to high-speed impact;
- the final bearing mechanism of the device is also a steel strip. If the steel strip breaks, the cage will fall back after reaching the highest point, which may cause the rope to be broken and fall.
- Announcement No. CN2570232 is a utility model patent of “vertical lifting system over-winding distance internal plastic deformation backstop buffer device”.
- the utility model belongs to a steel belt plastic deformation energy absorption type over-volume buffer device, and the device is provided with two fixed Hollow sleeve, there are slidable hollow slides in the sleeve, two The root sliding column is traversed by a beam; the steel strip which can be plastically deformed passes through the hollow sleeve and the sliding column, and the two ends are mounted and coupled to the sleeve; each of the sliding columns is provided with a set of pressure rollers, which are slippery.
- the device is a buffer device that is installed and used in an over-winding distance, absorbs the kinetic energy of the lifting container by plastic deformation of the metal material, and prevents the lifting container from falling backward.
- the recovery process of the buffer device is extremely complicated and takes a long time.
- the invention patent of "a mine shaft lifting system over-rolling buffer device" disclosed in CN102674107A the steel belt buffer portion and the hydraulic buffer portion and the restoring portion thereof are sequentially hinged on both ends of the front and rear beams, and the hydraulic buffer portion
- the beam moves with the articulated buffer cylinder, the pressure in the buffer cylinder rises and reaches the overflow pressure set by the connected hydraulic pumping station system to start the overflow energy absorption for the main energy absorption buffer;
- the steel strip in the part is plastically deformed to assist the energy absorption buffer.
- the main energy absorbing portion is the hydraulic buffer portion
- the steel strip in the buffer portion of the steel strip is less deformed and receives less force, so it is not easily broken; even if accidental breakage occurs
- the hydraulic cushioning portion can also stop the lifting container. This effectively ensures the reliability of the over-the-counter buffer device.
- the invention patent combines the steel belt buffer with the hydraulic buffer to make the mechanical system more complicated, the system components increase the production cost; and, because the hydraulic system is too complicated, there are many problems that need to be improved.
- the embodiments of the present invention are expected to provide a vertical lifting system over-winding buffer device and method, which are safe and reliable, and have fast recovery, simple structure and low cost.
- An embodiment of the present invention provides a vertical lifting system over-rolling buffer device, the vertical lifting system including a derrick and a lifting container; the derrick is provided with a hydraulic buffer device, and the hydraulic sluice is The punching device includes at least one buffer hydraulic cylinder and a buffer pressure roller disposed corresponding to the buffer hydraulic cylinder;
- the buffer hydraulic cylinder is mounted on the derrick, and a piston rod of the buffer hydraulic cylinder is horizontally disposed, an outer end of the piston rod faces the lifting container; and the buffer pressure roller is horizontally fixed to the outside of the lifting container
- the wall has an arcuate surface facing the piston rod of the buffer cylinder.
- the at least one buffer hydraulic cylinder is uniformly disposed on the derrick from bottom to top, and the piston rods of the respective buffer hydraulic cylinders are aligned in an initial state in an initial state.
- the outer end surface of the piston rod of the buffer hydraulic cylinder is provided with a replaceable wear resistant material.
- the replaceable wear-resistant material is a wear-resistant steel strip; the two ends of the wear-resistant steel strip are respectively fixed to the outer end faces of the piston rods of the two buffer hydraulic cylinders adjacent to each other.
- the derrick comprises four support columns, each of which is provided with the buffer hydraulic cylinder, and the piston rods of the buffer hydraulic cylinder are all facing the outer side wall of the lifting container.
- the device is further provided with a column and a beam, the column is fixed on the derrick, the beam can slide up and down on the column; the beam is provided with a claw supporting the lifting container.
- the device is further provided with a metal material plastic deformation buffering device
- the metal material plastic deformation buffering device comprises a buffer metal strip and a deforming member; the buffer metal strip is fixed on the column, and the deforming member is fixed on the column
- the deforming member causes plastic deformation of the buffer metal strip when the rising of the lifting container causes the beam to rise.
- the deformation component is a deformation pressure roller set provided on the beam;
- the deformation pressure roller set includes three deformation pressure rollers arranged up and down, and one end of the buffer metal tape is fixed at one end of the column. The other end is fixed to the other end of the column through the three deformation rollers, and the buffer metal strip has an S shape in the three deformation rollers.
- the embodiment of the invention further provides a vertical lifting system over-volume buffering method, the method comprising:
- the lifting container When the lifting container is raised to a predetermined position and continues to rise in inertia, the lifting container presses the piston rod of the buffer hydraulic cylinder disposed on the vertical lifting system derrick from the horizontal direction;
- the piston rod of the squeezed buffer cylinder is returned to its original position or against the outer side wall of the lifting container.
- the restoring the piston rod of the squeezed buffer hydraulic cylinder to return to the initial position or against the outer side wall of the lifting container comprises:
- the lifting container continues to rise in inertia, and the buffer roller fixed to the outer side wall of the lifting container returns to the initial position of the piston rod of the buffer cylinder of the current position when returning to the initial position of the piston rod of the buffer cylinder of the current position. Position or against the outer side wall of the lifting container.
- the restoring the piston rod of the squeezed buffer hydraulic cylinder to return to the initial position or against the outer side wall of the lifting container comprises:
- the lifting container continues to rise in inertia, and the buffer roller fixed to the outer side wall of the lifting container returns to the initial position of the piston rod of the buffer hydraulic cylinder at the current position, and returns to the initial position of the piston rod of the buffer hydraulic cylinder below the current position. position.
- the method further includes:
- hydraulic oil of a preset pressure is set.
- the vertical lifting system includes a derrick and a lifting container; the derrick is provided with a hydraulic buffering device, and the hydraulic buffering device comprises at least one buffering hydraulic cylinder and The buffer hydraulic cylinder is correspondingly disposed with a buffer pressure roller; the buffer hydraulic cylinder is mounted on the derrick, and a piston rod of the buffer hydraulic cylinder is horizontally disposed, and an outer end of the piston rod faces the lifting container; The buffer pressure roller is horizontally fixed to the outer side wall of the lifting container, and the circular arc surface faces the piston rod of the buffer hydraulic cylinder; it can be seen that the vertical lifting system over-rolling buffer device and method of the embodiment of the invention realize friction by the hydraulic cylinder The energy-absorbing over-winding buffer, during the buffering process, the braking force is gradually increased, and the braking process of the hydraulic cylinder is convenient to control and the braking force is convenient to adjust, in addition to increasing the braking force by increasing the pressure of the hydraulic pipeline,
- FIG. 1 is a front elevational view showing a scrolling device of a vertical lifting system according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of an isometric view of a scroll lifting device of a vertical lifting system according to an embodiment of the present invention
- FIG. 3 is a schematic view of a cross beam of a vertical lifting system in a buffer according to an embodiment of the present invention
- FIG. 4 is a schematic view of a hydraulic system in a scroll lifting device of a vertical lifting system according to an embodiment of the present invention
- Figure 5 is a schematic view 1 of the operation of the buffer hydraulic cylinder in the over-winding buffer device of the vertical lifting system according to the embodiment of the present invention
- FIG. 6 is a second schematic view of the operation of the buffer hydraulic cylinder in the over-winding buffer device of the vertical lifting system according to the embodiment of the present invention.
- FIG. 7 is a schematic flow chart of a method for buffering a vertical lifting system according to an embodiment of the present invention.
- An embodiment of the present invention provides a vertical lifting system over-volume buffering device, the vertical lifting system including a derrick and a lifting container; the derrick is provided with a hydraulic buffering device, the hydraulic damping device comprising at least one buffer hydraulic cylinder and The buffer hydraulic cylinder is correspondingly disposed with a buffer pressure roller; the buffer hydraulic cylinder is mounted on the derrick, and a piston rod of the buffer hydraulic cylinder is horizontally disposed, and an outer end of the piston rod faces the lifting container; The buffer pressure roller is horizontally fixed to the outer side wall of the lifting container, and the circular arc surface faces the piston rod of the buffer hydraulic cylinder.
- the lifting container is a general term for a bucket, a cage, a bucket, etc., for loading minerals, waste rock, vermiculite, and a container for transporting people and other materials; the lifting container can be used in the derrick under the action of a vertical lifting system
- the four support columns enclose the space vertically up and down.
- the initial position of the piston rod of the buffer hydraulic cylinder is the outer end surface
- the buffering roller is disposed on the outer side wall of the lifting container, and the buffering roller is disposed on the outer side wall of the lifting container, and protrudes from the outer side wall of the lifting container, so during the lifting of the lifting container,
- the buffer press roller presses the piston rod of the buffer hydraulic cylinder, causing the piston rod to retract until the lifting container kinetic energy is reduced to the piston rod retracting that is unable to squeeze the buffer hydraulic cylinder;
- the circular arc surface of the buffer pressure roller faces the piston rod of the buffer hydraulic cylinder in that a horizontal force component can be obtained from a vertical direction force applied by the lifting container, thereby the piston rod of the buffer hydraulic cylinder Extrusion occurs; otherwise, only the vertical force exerts a shear or bending moment on the piston rod of the buffer cylinder, damaging the piston rod.
- the working principle of the hydraulic buffer device is that when the buffer roller presses the piston rod of the buffer hydraulic cylinder, the pressure of the buffer hydraulic cylinder needs to be overcome, thereby consuming the upward kinetic energy of the lifting container; meanwhile, the pressure of the buffer hydraulic cylinder is In addition to preventing the upward movement of the lifting container, the potential energy of the lifting container can be overcome, and the downward movement of the lifting container can be prevented, that is, the buffering hydraulic cylinder has a braking effect on the movement of the lifting container;
- each of the buffer hydraulic cylinders is evenly disposed on the derrick from bottom to top, and the piston rods of the buffer cylinders are aligned in an initial state in an initial state; thus, when the lifting container continues to rise, it will go from bottom to top.
- the piston rods of the respective buffer hydraulic cylinders are sequentially pressed, so that the hydraulic buffer device can generate multiple times of multi-point braking, and a good braking effect can be ensured.
- each of the buffer cylinders can also actively extend the piston rod to withstand the lifting.
- the outer side wall of the container generates a frictional braking effect between the buffer hydraulic cylinder and the lifting container during the ascending or descending of the lifting container.
- the buffer cylinder to generate a braking effect by the piston rod against the outer side wall of the lifting container:
- Solution 1 After the buffer pressure roller is away from the position of the piston rod of the lowermost buffer hydraulic cylinder, the piston rod of the lowermost buffer hydraulic cylinder protrudes outward until the lifting capacity is supported The outer side wall of the device or returning to the initial position, and so on, the piston rod of the buffer hydraulic cylinder will protrude outward after being pressed away from the buffer pressure roller until it abuts against the outer side wall of the lifting container or back In the initial position; thus, when the lifting container moves up or down, the piston rod of the buffer hydraulic cylinder will rub against the outer side wall of the lifting container, preventing the movement of the lifting container, the magnitude of the friction force and the buffer hydraulic cylinder The pressure is related.
- the principle that the piston rod of the buffer hydraulic cylinder protrudes outward is: in a hydraulic pipe connecting the buffer hydraulic cylinder, a hydraulic oil of a preset pressure is provided, and the preset pressure is sufficient for the piston rod to be outward Extending to a predetermined position and capable of overcoming a certain applied pressure, when the kinetic energy of the upward movement of the lifting container is sufficiently large, the buffer pressure roller of the outer side wall of the lifting container can overcome the preset pressure, and the hydraulic oil flows out a buffer hydraulic cylinder, the piston rod of the buffer hydraulic cylinder is retracted; when the buffer pressure roller is away from a position of a piston rod that presses the buffer hydraulic cylinder, hydraulic oil of a preset pressure is returned to the buffer hydraulic cylinder, The piston rod of the buffer hydraulic cylinder will re-extend until it abuts against the outer side wall of the lifting container or returns to the initial position;
- a hydraulic valve connected to the buffer hydraulic cylinder may be provided with a relief valve, and when the kinetic energy of the upward movement of the lifting container is sufficiently large, hydraulic oil flows back from the overflow valve to the oil tank; It is equipped with a hydraulic pump and an accumulator to maintain the preset pressure in the hydraulic pipe so that the hydraulic oil can smoothly return to the buffer hydraulic cylinder.
- Solution 2 when the lifting container continues to increase inertia to a position corresponding to the sub-lower buffer hydraulic cylinder above the lowermost buffer hydraulic cylinder, the buffer pressure roller will squeeze the piston rod retraction of the lower lower buffer hydraulic cylinder
- the lowermost buffer hydraulic cylinder will extend outwardly from the piston rod after the piston rod of the secondary lower buffer hydraulic cylinder is retracted until it abuts against the outer side wall of the lifting container or returns to the initial position, and so on.
- the buffer hydraulic cylinder below the current position of the buffer press roller will extend outwardly from the piston rod after the piston rod of the upper buffer hydraulic cylinder is retracted until it abuts against the outer side wall of the lifting container or returns to the initial position.
- the principle that the piston rod of the buffer hydraulic cylinder protrudes outward is: sub-lower buffering After the piston rod of the hydraulic cylinder is squeezed by the buffer pressure roller, the hydraulic oil flows out of the lower buffer hydraulic cylinder. Since the hydraulic pressure of the preset pressure is set in the entire hydraulic pipeline, the piston rod of the lowermost buffer hydraulic cylinder is in a free state. That is, the pressure inside the buffer cylinder is the smallest, so the hydraulic oil flowing out from the lower buffer cylinder pushes the hydraulic oil in the pipe into the lowermost buffer cylinder;
- the outer end surface of the piston rod of the buffer hydraulic cylinder may be provided with a replaceable wear-resistant material, so that the piston rod of the buffer hydraulic cylinder is not worn;
- the replaceable wear-resistant material may be a wear-resistant steel strip, the wear-resistant steel strip is easy to take, and the performance is excellent; the two ends of the wear-resistant steel strip are respectively fixed to the piston rods of two buffer hydraulic cylinders adjacent to each other.
- the outer end surface can reduce the wear of the piston rod of the buffer hydraulic cylinder on the one hand, and can also smoothly enter the position of the piston rod of the buffer hydraulic cylinder on the other hand; the wear-resistant steel strip can also Is a whole piece, connected to each buffer hydraulic cylinder;
- the wear-resistant steel strip may be selected from steel strips having a high surface hardness, such as steel strips made of high carbon steel, such as 65# steel, 65Mn steel, etc., and steel strips and surfaces made of low carbon steel.
- the treatment method such as surface carburization, etc., is not specifically developed.
- the derrick includes four support columns, each of which is provided with the buffer hydraulic cylinder, and the piston rods of the buffer hydraulic cylinder are all facing the outer side wall of the lifting container;
- the large braking force and the symmetrical distribution of the braking force contribute to the stability of the entire vertical lifting system.
- the device is further provided with a column and a beam; the column is fixed on the derrick, and the beam can be up and down on the column Sliding; thus, when the lifting container continues to rise in inertia and hits the beam after reaching the predetermined position, the beam has the feature of freely sliding up and down, thereby offsetting The impact force of the lifting container.
- the beam is provided with a claw supporting the lifting container; the lifting container is supported by the claw of the beam after reaching the predetermined position.
- the lifting container and the beam are fixed together, and the rising inertia of the lifting container becomes the free sliding of the beam on the column, greatly reducing the impact of the rising inertia of the lifting container on the entire vertical lifting system. And destruction;
- the upper end of the claw is hinged with the beam, and the inner side of the lower end of the claw is provided with a tapered surface, which makes the lifting container rise into the claw when the inertia rises.
- the lower end of the claw is rotated outward, that is, in a direction away from the lifting container;
- the outer side wall of the lifting container is provided with a protruding claw beam, and
- the supporting claw is further provided with a claw capable of rotating outward a reset spring that is reset by the return spring after the claw beam rises past the tapered surface, and the claw clamps the claw beam, thereby holding the
- the lifting container is such that the lifting container and the beam move integrally to avoid repeated impact.
- the device is further provided with a metal material plastic deformation buffering device, the metal material plastic deformation buffering device comprising a buffer metal strip and a deforming member; the buffer metal strip is fixed on the column The deforming member is disposed on the beam, and the deforming member causes plastic deformation of the buffer metal strip when the lifting container is raised in inertia to drive the beam to rise;
- the material of the buffer metal strip may be steel, the steel material is convenient to take, and the comprehensive performance is excellent, especially the plastic deformation ability and the tensile strength are better; more specifically, it may be ordinary low carbon steel, preferably plasticity, and Steel with a certain tensile strength, such as Q235A;
- the deformation component is a deformation pressure roller set disposed on the beam
- the deformation pressure roller group includes three deformation pressure rollers arranged up and down, and one end of the buffer metal tape is fixed at one end of the column. The other end is fixed to the other end of the column through the three deformation rollers, and the buffer metal strip has an S shape in the three deformation rollers; thus, when the beam moves up and down, The three deformation pressing rollers cause plastic deformation of the buffer metal strip, and a large amount of energy is consumed due to overcoming the plastic deformation, thus consuming the upward kinetic energy of the lifting container;
- the thickness of the buffer metal strip is gradually increased from bottom to top, such that the higher the lifting of the lifting container, the more kinetic energy is consumed to overcome the plastic deformation of the buffer metal strip, and the plastic deformation can be achieved. Better braking effect.
- FIG. 1 is a front elevational view of a scrolling device for a vertical lifting system according to an embodiment of the present invention
- FIG. 2 is a schematic view showing a perspective view of a scrolling device for a vertical lifting system according to an embodiment of the present invention
- Vertical lifting system over-the-roll buffer device including hydraulic buffer device and metal material plastic deformation buffer device; two sets of buffer devices work together, the buffer effect is better, safe and reliable.
- the hydraulic buffer device is mainly used, and the metal material plastic deformation buffer device is supplemented, which will be introduced separately below.
- the hydraulic buffer device includes a derrick 1 including four support columns, each of which is provided with a buffer hydraulic cylinder 14, and each of the support columns is provided with five buffer hydraulic cylinders 14
- the five buffer hydraulic cylinders 14 are arranged in the vertical direction on the support column with the same pitch.
- the outer end faces of the piston rods disposed on the buffer cylinders are provided with wear-resistant steel strips 12.
- the buffer hydraulic cylinders on the same support column of the derrick 1 use the entire wear-resistant steel strip 12, which is resistant to The steel strips 12 are respectively fixed to the piston rods of the respective buffer cylinders.
- a lifting container 5 is arranged in a space surrounded by four supporting columns of the derrick 1, and the lifting container 5 can be used in the four supporting columns of the derrick 1 under the action of a vertical lifting system.
- the circular arc surface faces the buffer hydraulic cylinder 14, such that the circular arc surface
- the punching roller 7 can convert the rising kinetic energy into a horizontal direction of the piston rod of the buffer cylinder 14.
- the buffer press roller 7 Since the surface of the buffer press roller 7 is relatively severe in operation and is easily damaged, the buffer press roller 7 is designed to be detachable; correspondingly, the lift container 5 is provided with a press roller lug 6, the buffer pressure a roller 7 is detachably assembled in the presser roller seat 6;
- the press roller lug 6 is provided with a mounting hole matched with the buffer press roller 7, and one end of the buffer press roller 7 is inserted into the mounting hole, and then fixed by other auxiliary and detachable fixing methods, such as It can be fixed with a set screw (the auxiliary fixing method is not shown in the figure).
- the hydraulic buffer device is further provided with two beams 2 and four columns 3, the column 3 is fixed on the derrick, and the beam 2 can slide up and down on the column; thus, when the lifting container arrives When the inertia rises after the predetermined position, the beam 2 is hit, and the beam 2 has the feature of being able to slide up and down freely, thereby offsetting the impact force of the lifting container 5.
- the beam 2 is provided with a claw 9 for supporting the lifting container 5, and the outer side wall of the lifting container 5 is provided with a claw beam 8 corresponding to the claw 9 so that the lifting container 5 reaches a predetermined position. Supported by the claws 9; in addition, in order not to interfere with the buffer cylinder 14 and the cushioning roller 7, the positions of the claws 9 and the claw beams 8 are avoided from the buffer cylinder 14 and the buffer The position of the pressure roller 7, such as the claw beam 8 is disposed at the middle of the upper end of the outer side wall of the lifting container 5, and the buffer pressure roller 7 is disposed at both sides of the upper end of the outer side wall of the lifting container 5.
- the claw 9 is hinged to the beam 2, and the inner side of the lower end is provided with a tapered surface, and a return spring 10 is provided.
- a return spring 10 is provided.
- the upper end of the derrick 1 is provided with an upper bracket 13 , and the upper bracket 13 is provided with a slot for accommodating the wear-resistant steel strip 12 , and the upper end of the wear-resistant steel strip 12 is disposed in the slot. Wear-resistant steel strip The upper end position of 12 is limited.
- the metal material plastic deformation buffer device includes a buffer metal strip 4 and a deforming member.
- the beams 2 are each provided with a deforming member, which is a deforming pressure roller group 11 provided on the beam 2, and the deforming roller group 11 includes upper and lower rows.
- a three-shaped pressure roller each of the four columns is provided with a buffer metal strip 4, one end of the buffer metal strip 4 is fixed at one end of the column 3, and the other end is fixed at the end by the three deformation rollers
- the buffer metal strip 4 has an S-shape in the three deformation rollers; thus, when the beam 2 moves up and down, the three deformation rollers will cause the buffer metal strip 4 plastic deformation occurs, which consumes a large amount of energy due to overcoming the plastic deformation, thus consuming the upward kinetic energy of the lifting container 5;
- the material of the buffer metal strip 4 may be low carbon steel
- the thickness of the buffer metal strip 4 is gradually increased from bottom to top, that is, special custom processing is required; thus, the higher the rising of the lifting container 5, the more kinetic energy is consumed to overcome the buffer metal. With the plastic deformation of the belt 4, a better braking effect can also be achieved.
- FIG. 4 is a schematic view of a hydraulic system in a scroll lifting device of a vertical lifting system according to an embodiment of the present invention
- FIG. 5 is a schematic view showing the operation of a buffer hydraulic cylinder in a scroll lifting device of a vertical lifting system according to an embodiment of the present invention
- Embodiment 2 is a schematic diagram of the operation of the buffer hydraulic cylinder in the vertical lifting system over-buffering device; as shown in FIGS.
- the hydraulic system in the vertical lifting system over-the-roll buffer device of the embodiment of the present invention includes a buffer hydraulic cylinder 14- 1, 14-2, 14-3, 14-4, 14-5, check valves 16, 18, 19, 21, 22, 24, 25, relief valves 17, 20, 23, 27, hydraulic pump 26, Accumulator 28; correspondingly, the operation process of the hydraulic system according to the embodiment of the present invention is as follows:
- the buffer pressing roller 7 When the lifting container 5 is lifted to the predetermined position and continues to rise in inertia, the buffer pressing roller 7 first presses the piston rod of the buffering hydraulic cylinder 14-1, since the pressing force of the buffering pressing roller 7 is greater than the overflow The preset pressure of the flow valve 27, the hydraulic oil of the buffer hydraulic cylinder 14-1 flows back to the oil tank through the overflow valve 27, and the piston rod of the buffer hydraulic cylinder 14-1 is retracted;
- the buffer press roller 7 presses the piston rod of the buffer hydraulic cylinder 14-2, and the hydraulic oil of the buffer hydraulic cylinder 14-2 is forced to flow out, since the upper buffer hydraulic cylinder 14-3 is filled with hydraulic pressure inside.
- the buffer hydraulic cylinder below the current position of the buffer press roller 7 will extend outwardly from the piston rod after the piston rod of the upper buffer hydraulic cylinder is retracted until it abuts against the outer side wall of the lifting container 5 or Return to the initial position;
- the hydraulic pump 26, the accumulator 28 is used to maintain a preset pressure of the hydraulic pipe in the hydraulic system, so that the hydraulic oil can smoothly return to the buffer hydraulic cylinder.
- FIG. 7 is a schematic flowchart diagram of a vertical lifting system over-volume buffering method according to an embodiment of the present invention, where the method includes:
- Step 701 When the lifting container is raised to a predetermined position and continues to rise in inertia, the lifting container presses the piston rod of the buffer hydraulic cylinder disposed on the vertical lifting system derrick from the horizontal direction;
- the vertical lifting system comprises a derrick and a lifting container, the derrick comprises four supporting columns; the lifting container can be surrounded by four supporting columns of the derrick under the action of a vertical lifting system Vertically rising up and down;
- the vertical lifting system derrick is provided with a buffer hydraulic cylinder, and the piston rod of the buffer hydraulic cylinder is horizontally disposed;
- the lifting container When the lifting container is raised to a predetermined position and continues to rise in inertia, the lifting container presses the piston rod of the buffer hydraulic cylinder disposed on the vertical lifting system derrick from the horizontal direction;
- the outer side wall of the lifting container is provided with a buffer pressure roller, and the buffer pressure roller presses the piston rod of the buffer hydraulic cylinder from the horizontal direction during the ascending container lifting; thus, the pressure of the buffer hydraulic cylinder needs to be overcome. Therefore, it also consumes the upward kinetic energy of the lifting container and acts as a buffer for lifting the lifting container.
- Step 702 Restore the piston rod of the squeezed buffer cylinder back to the initial position or against the outer side wall of the lifting container.
- Solution 1 When the lifting container continues to increase in inertia, and the buffer pressure roller fixed to the outer side wall of the lifting container leaves the outer end surface of the piston rod of the buffer hydraulic cylinder at the current position, the piston of the buffer hydraulic cylinder of the current position is restored. Returning the rod to the initial position or against the outer side wall of the lifting container;
- the principle of restoring the piston rod of the buffer cylinder of the current position to the initial position or against the outer side wall of the lifting container is: hydraulic oil provided with a preset pressure in the hydraulic pipe connecting the buffer hydraulic cylinder, The preset pressure is sufficient for the piston rod to extend outwardly and overcome a certain applied pressure.
- the buffering roller of the outer side wall of the lifting container can overcome the preset.
- Solution 2 when the lifting container continues to increase in inertia, and the buffer roller fixed to the outer side wall of the lifting container presses the piston rod of the buffer hydraulic cylinder at the current position each time, the piston of the buffer hydraulic cylinder below the current position is restored. Returning the rod to the initial position or against the outer side wall of the lifting container;
- the principle of restoring the piston rod of the buffer cylinder of the current position to the initial position or against the outer side wall of the lifting container is: the hydraulic rod of the buffer cylinder of the current position is squeezed by the buffer roller
- the buffer hydraulic cylinder that flows out of the current position because the hydraulic pressure of the preset pressure is set in the entire hydraulic pipe, and the piston rod of the buffer hydraulic cylinder below the current position is in a free state, that is, the pressure inside the buffer hydraulic cylinder below the current position is The smallest, so the hydraulic oil flowing out of the buffer hydraulic cylinder at the current position pushes the hydraulic oil in the pipeline into the buffer hydraulic cylinder below the current position;
- a hydraulic pressure of a preset pressure is provided in a hydraulic pipe connecting the buffer hydraulic cylinder; thus, the piston rod of the buffer cylinder that recovers the squeeze can be recovered.
- hydraulic oil of a predetermined pressure may be supplied to a hydraulic pipe connecting the buffer hydraulic cylinder by means of a hydraulic pump and an accumulator, so that the piston rod of the buffer hydraulic cylinder is extended outward to a predetermined position; a relief valve of a preset pressure is installed in a pipe between the buffer hydraulic cylinder and the oil tank, and the buffer hydraulic cylinder is only when an external force received by the piston rod of the buffer hydraulic cylinder is greater than a preset pressure of the relief valve The piston rod will retract.
- the vertical lifting system over-rolling buffer device and method of the embodiment of the invention realizes the friction energy-absorbing type over-winding buffer through the hydraulic cylinder, in the buffering process, the braking force is gradually increased, and the braking process of the hydraulic cylinder is convenient to control and the braking force is adjusted.
- Convenient in addition to increasing the braking force by increasing the pressure of the hydraulic pipeline, it is also possible to further increase the braking force by increasing the number of hydraulic cylinders, which is safe, reliable, quick to recover, simple in structure, and low in cost.
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Description
Claims (12)
- 一种垂直提升系统过卷缓冲装置,所述垂直提升系统包括井架和提升容器;所述井架上设置有液压缓冲装置,所述液压缓冲装置包括至少一个缓冲液压缸和与所述缓冲液压缸对应设置的缓冲压辊;所述缓冲液压缸安装于所述井架上,且所述缓冲液压缸的活塞杆水平设置,所述活塞杆的外端朝向所述提升容器;所述缓冲压辊水平固定于所述提升容器外侧壁,且圆弧面朝向所述缓冲液压缸的活塞杆。
- 根据权利要求1所述的垂直提升系统过卷缓冲装置,其中,所述至少一个缓冲液压缸从下至上均匀设置于所述井架,且各缓冲液压缸的活塞杆在初始状态下外端面对齐。
- 根据权利要求2所述的垂直提升系统过卷缓冲装置,其中,所述缓冲液压缸的活塞杆的外端面设有可更换耐磨材料。
- 根据权利要求3所述的垂直提升系统过卷缓冲装置,其中,所述可更换耐磨材料为耐磨钢带;所述耐磨钢带两端分别固定于上下相邻的两个缓冲液压缸的活塞杆的外端面。
- 根据权利要求1所述的垂直提升系统过卷缓冲装置,其中,所述井架包括四个支撑柱,所述四个支撑柱上均设有所述缓冲液压缸,所述缓冲液压缸的活塞杆均朝向所述提升容器的外侧壁。
- 根据权利要求1至5任一项所述的垂直提升系统过卷缓冲装置,其中,所述装置还设有立柱和横梁,所述立柱固定在所述井架上,所述横梁能在所述立柱上上下滑动;所述横梁设有托住所述提升容器的托爪。
- 根据权利要求6所述的垂直提升系统过卷缓冲装置,其中,所述装置还设有金属材料塑性变形缓冲装置,所述金属材料塑性变形缓冲装置包括缓冲金属带和变形部件;所述缓冲金属带固定于所述立柱上,所 述变形部件固定于所述横梁上;所述提升容器惯性上升带动所述横梁上升时,所述变形部件使所述缓冲金属带产生塑性变形。
- 根据权利要求7所述的垂直提升系统过卷缓冲装置,其中,所述变形部件为设在所述横梁上的变形压辊组;所述变形压辊组包括三个上下排布的变形压辊,所述缓冲金属带一端固定在所述立柱一端,另一端穿过所述三个变形压辊后固定在所述立柱的另一端,所述缓冲金属带在所述三个变形压辊中的形状为S形。
- 一种垂直提升系统过卷缓冲方法,所述方法包括:当提升容器提升到预定位置后继续惯性上升时,所述提升容器从水平方向挤压设置于所述垂直提升系统井架上的缓冲液压缸的活塞杆;恢复被挤压的缓冲液压缸的活塞杆回到初始位置或顶住所述提升容器的外侧壁。
- 根据权利要求9所述的方法,其中,所述恢复被挤压的缓冲液压缸的活塞杆回到初始位置或顶住所述提升容器的外侧壁,包括:所述提升容器继续惯性上升,且固定在所述提升容器外侧壁的缓冲压辊每次离开当前位置的缓冲液压缸的活塞杆外端面时,恢复当前位置的缓冲液压缸的活塞杆回到初始位置或顶住所述提升容器的外侧壁。
- 根据权利要求9所述的方法,其中,所述恢复被挤压的缓冲液压缸的活塞杆回到初始位置或顶住所述提升容器的外侧壁,包括:所述提升容器继续惯性上升,且固定在所述提升容器外侧壁的缓冲压辊每次挤压当前位置的缓冲液压缸的活塞杆时,恢复当前位置下方的缓冲液压缸的活塞杆回到初始位置。
- 根据权利要求9至11任一项所述的方法,其中,所述方法还包括:在连接所述缓冲液压缸的液压管道中,设置预设压力的液压油。
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CN107010508B (zh) * | 2017-05-26 | 2022-11-25 | 上海峻腾建设工程有限公司 | 一种水气缓冲电梯井 |
CN108487929A (zh) * | 2018-04-24 | 2018-09-04 | 中煤科工集团南京设计研究院有限公司 | 一种煤矿新型防撞梁装置 |
CN113896070A (zh) * | 2021-10-12 | 2022-01-07 | 安徽兴国电子科技有限公司 | 一种基于连续阻力式的电梯轿厢紧急制动装置 |
CN116692646B (zh) * | 2023-06-20 | 2024-02-27 | 徐州中矿科光机电新技术有限公司 | 一种超深井提升容器用缓冲托罐装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB869853A (en) * | 1956-11-09 | 1961-06-07 | Plowright Brothers Ltd | Improvements in or relating to winding gear |
JP2003182944A (ja) * | 2001-11-16 | 2003-07-03 | Inventio Ag | エレベータ昇降路内に配置された駆動ユニットと制御ユニットとを有するエレベータ装置 |
CN2570232Y (zh) * | 2002-06-27 | 2003-09-03 | 周克家 | 垂直提升系统过卷距离内塑变逆止缓冲装置 |
CN102674107A (zh) * | 2012-06-05 | 2012-09-19 | 太原理工大学 | 一种矿山立井提升系统过卷缓冲装置 |
CN202657793U (zh) * | 2012-06-25 | 2013-01-09 | 徐州泰荣煤矿设备有限公司 | 钢带式缓冲托罐装置 |
CN203582222U (zh) * | 2013-09-26 | 2014-05-07 | 江苏河谷矿业科技发展有限公司 | 立井提升过卷过放缓冲保护装置 |
CN204454212U (zh) * | 2015-01-15 | 2015-07-08 | 武汉市云竹机电新技术开发有限公司 | 一种用于矿井的托罐装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US725491A (en) * | 1902-09-06 | 1903-04-14 | John G Scott | Elevator. |
US4635907A (en) * | 1983-07-11 | 1987-01-13 | Otis Elevator Company | Hydraulic buffer for elevators |
JP2002145545A (ja) * | 2000-11-09 | 2002-05-22 | Mitsubishi Electric Corp | エレベータの終端安全装置及びこの終端安全装置を使用したエレベータの保守方法 |
EP1312575B1 (de) | 2001-11-16 | 2008-03-26 | Inventio Ag | Aufzugsanlage mit im Aufzugsschacht angeordneter Antriebseinheit und Steuerungseinheit |
CN101402438B (zh) * | 2008-11-13 | 2010-09-08 | 周克家 | 绳式柔性提升过速过卷保护缓冲制动系统 |
US10150649B2 (en) * | 2013-06-07 | 2018-12-11 | Technological Resources Pty. Limited | Overwind conveyance drop protection |
CN104016206B (zh) | 2014-06-04 | 2017-01-25 | 张纬 | 矿井提升系统用阻尼式过放缓冲装置 |
CN204342220U (zh) * | 2014-12-24 | 2015-05-20 | 江苏正基电梯部件有限公司 | 一种防突降的升降电梯井道 |
CN205367385U (zh) * | 2016-02-29 | 2016-07-06 | 徐州中泰煤矿安全设备制造有限公司 | 一种过卷过放缓冲托罐装置 |
-
2016
- 2016-10-17 CN CN201610905872.1A patent/CN106564808B/zh active Active
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Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB869853A (en) * | 1956-11-09 | 1961-06-07 | Plowright Brothers Ltd | Improvements in or relating to winding gear |
JP2003182944A (ja) * | 2001-11-16 | 2003-07-03 | Inventio Ag | エレベータ昇降路内に配置された駆動ユニットと制御ユニットとを有するエレベータ装置 |
CN2570232Y (zh) * | 2002-06-27 | 2003-09-03 | 周克家 | 垂直提升系统过卷距离内塑变逆止缓冲装置 |
CN102674107A (zh) * | 2012-06-05 | 2012-09-19 | 太原理工大学 | 一种矿山立井提升系统过卷缓冲装置 |
CN202657793U (zh) * | 2012-06-25 | 2013-01-09 | 徐州泰荣煤矿设备有限公司 | 钢带式缓冲托罐装置 |
CN203582222U (zh) * | 2013-09-26 | 2014-05-07 | 江苏河谷矿业科技发展有限公司 | 立井提升过卷过放缓冲保护装置 |
CN204454212U (zh) * | 2015-01-15 | 2015-07-08 | 武汉市云竹机电新技术开发有限公司 | 一种用于矿井的托罐装置 |
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