CN117047644B - Spherical filter screen inner surface polishing equipment of slurry circulating pump - Google Patents

Spherical filter screen inner surface polishing equipment of slurry circulating pump Download PDF

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Publication number
CN117047644B
CN117047644B CN202311322325.7A CN202311322325A CN117047644B CN 117047644 B CN117047644 B CN 117047644B CN 202311322325 A CN202311322325 A CN 202311322325A CN 117047644 B CN117047644 B CN 117047644B
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China
Prior art keywords
rod
telescopic
axis
polishing
middle position
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CN202311322325.7A
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Chinese (zh)
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CN117047644A (en
Inventor
吴胜
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Yancheng Chuangzhong Machinery Manufacturing Co ltd
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Yancheng Chuangzhong Machinery Manufacturing Co ltd
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Publication of CN117047644A publication Critical patent/CN117047644A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
    • B24B29/04—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for rotationally symmetrical workpieces, e.g. ball-, cylinder- or cone-shaped workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B11/00—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor
    • B24B11/02—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0092—Grinding attachments for lathes or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention relates to the field of grinding, in particular to a polishing device for the inner surface of a spherical filter screen of a slurry circulating pump, which comprises a bracket, a polishing mechanism, a lifting platform, a clamping mechanism and a driving mechanism, wherein the bracket is arranged along a first axis extending vertically, and a spherical workpiece is placed on the lifting platform; the plurality of clamping mechanisms are uniformly distributed around the first axis in the circumferential direction, each clamping mechanism comprises a driving rod, a telescopic jacking column, a transmission assembly and a shearing rod group, and the driving rods are vertically arranged and are slidably arranged on the bracket along the radial direction of the first axis; the telescopic jacking columns are distributed in the vertical direction; two adjacent telescopic jacking columns are connected through a fork rod group; the driving mechanism enables the driving rod to be close to the spherical workpiece, so that the spherical workpiece is tightly propped by the plurality of telescopic jacking columns in a surrounding manner; the transmission assembly enables the lifting platform to rise to enable a plurality of telescopic jacking columns positioned in the middle to jack up the spherical workpiece on the same circumferential surface passing through the center of the sphere, so that the polishing mechanism can conveniently polish the inner surface of the spherical workpiece.

Description

Spherical filter screen inner surface polishing equipment of slurry circulating pump
Technical Field
The invention relates to the field of grinding, in particular to a polishing device for the inner surface of a spherical filter screen of a slurry circulating pump.
Background
In the intelligent manufacturing equipment industry, a slurry circulating pump is one of very important equipment in desulfurization system equipment of a thermal power plant. The filter screen arranged at the inlet of the slurry circulating pump is used for filtering slurry, and the impurities in the slurry of the intercepting and absorbing tower, such as an anti-corrosion lining layer, scaling substances, inner parts of the tower, and the like, are removed, so that the flow-through parts of the slurry circulating pump and the anti-corrosion lining of the slurry pipeline are protected, and the spray pipeline and the spray nozzle are prevented from being blocked. The filter screen shape that slurry circulating pump entrance set up has multiple, and wherein, spherical filter screen is along with the live time increases, and the internal surface easily produces corrosion, need carry out polishing treatment to it, but because of spherical work piece is difficult to fix, work piece easily produces not hard up when polishing it, and then leads to polishing inhomogeneous. For example, chinese patent application publication No. CN108000342a discloses a ball polishing device, which fixes a ball by arranging four polishing components, but has high requirement for position distribution of the four polishing components, and is easy to cause rotation of the ball during polishing, and is not suitable for polishing the inner surface of the ball.
Disclosure of Invention
The invention provides a polishing device for the inner surface of a spherical filter screen of a slurry circulating pump, which aims to solve the problem that the existing sphere polishing device is unreliable in fixation.
The invention relates to a polishing device for the inner surface of a spherical filter screen of a slurry circulating pump, which adopts the following technical scheme:
the utility model provides a spherical filter screen internal surface polishing equipment of thick liquid circulating pump for polishing spherical work piece, includes support, grinding machanism, elevating system, clamping mechanism and actuating mechanism, and the support sets up along vertical first axis, and elevating system includes lift platform, and lift platform is installed in the support with sliding from top to bottom; the spherical workpiece is placed on the lifting platform and synchronously moves along with the lifting platform; the plurality of clamping mechanisms are uniformly distributed around the first axis, each clamping mechanism comprises a driving rod, a telescopic jacking column, a transmission assembly and a shearing fork rod group, and the driving rods are vertically arranged and slidably arranged on the bracket along the direction perpendicular to the first axis; the plurality of telescopic jacking columns extend along the direction perpendicular to the first axis, the plurality of telescopic jacking columns are distributed along the vertical direction, the telescopic jacking columns positioned at the middle position in the plurality of telescopic jacking columns are fixedly connected with the driving rod, other telescopic jacking columns can be slidably arranged on the driving rod along the vertical direction and synchronously move with the driving rod, and part of the telescopic jacking columns positioned above the middle position and part of the telescopic jacking columns positioned below the middle position are symmetrically distributed about the telescopic jacking columns at the middle position; adjacent two telescopic jacking columns are connected through a shearing fork rod group, and the shearing fork rod group enables other telescopic jacking columns to synchronously approach to the telescopic jacking column positioned at the middle position; the upper surface of the lifting platform is coplanar with the lowest telescopic jack-prop and is connected with the lowest telescopic jack-prop, the distance between the telescopic jack-prop at the middle position and the first axis is a first distance, the distance between the lowest telescopic jack-prop and the telescopic jack-prop at the middle position is a second distance, and in an initial state, the first distance is equal to the second distance; the driving mechanism drives the driving rod to move to a position close to the first axis direction until the telescopic jack post positioned at the middle position is abutted against the spherical workpiece; the transmission assembly transmits the movement of the driving rod in the direction close to the first axis to enable the lifting platform to move upwards, and the movement displacement of the lifting platform and the telescopic top column positioned at the middle position is equal; the polishing mechanism is positioned above the spherical workpiece and polishes the inner surface of the spherical workpiece after the clamping mechanism clamps the spherical workpiece.
Further, each telescopic jack post comprises a sleeve, a slide bar and an elastic piece, the slide bar and the sleeve extend along the radial direction of the first axis and are connected through the elastic piece, and the slide bar is positioned on one side of the sleeve close to the first axis and is in sliding connection with the sleeve; the transmission assembly comprises a linkage rod, a first piston cylinder and an oil pipe, wherein the linkage rod is vertically arranged and positioned on one side of the driving rod, which is close to the first axis, and is positioned in the same radial direction of the first axis with the driving rod, and the linkage rod can be slidably arranged on the bracket along the radial direction of the first axis; the sleeve of the telescopic jack post positioned at the middle position is fixedly connected with the driving rod, the slide bar of the telescopic jack post positioned at the middle position is fixedly connected with the linkage rod, and the telescopic jack posts positioned at other positions can slide up and down and can pass through the linkage rod in a radial sliding manner along the first axis; the first piston cylinder is filled with hydraulic oil, one end of the first piston cylinder is connected with the linkage rod, the other end of the first piston cylinder is fixed on the bracket, and the first piston cylinder is extruded when the linkage rod moves towards the direction close to the first axis; the lifting mechanism further comprises a hydraulic cylinder and a lifting rod, the hydraulic cylinder is fixed on the frame and positioned below the lifting platform, the lifting rod is installed on the hydraulic cylinder in a vertically sliding manner, and the lifting platform is fixed at the upper end of the lifting rod; one end of the oil pipe is communicated with the interior of the first piston cylinder, the other end of the oil pipe is communicated with the interior of the hydraulic cylinder, hydraulic oil in the first piston cylinder enters the hydraulic cylinder through the oil pipe under the extrusion of the linkage rod, and hydraulic oil entering the hydraulic cylinder pushes the lifting rod to move upwards, and the displacement of the radial inward movement of the linkage rod along the first axis is equal to the displacement of the upward movement of the lifting platform by configuring the compression ratio of the first piston cylinder and the hydraulic cylinder.
Further, the driving mechanism comprises a connecting rod ring and a screw rod, the connecting rod ring is coaxial with the first axis, the connecting rod ring is formed by encircling a plurality of connecting rods around vertically extending hinge shafts from beginning to end, the hinge shafts of the connecting rod ring are sequentially and alternately a first hinge shaft and a second hinge shaft, the number of the connecting rods is twice that of the clamping mechanisms, and the number of the first hinge shafts and the second hinge shafts are equal to that of the clamping mechanisms.
Further, each first hinge shaft is slidably mounted to the bracket along a radial direction of the first axis, and each second hinge shaft is connected to a driving rod of a clamping mechanism.
Further, a screw seat is arranged on the bracket, the screw rod extends along the radial direction of the first axis and is in threaded fit with the screw seat, and one end of the screw rod is rotationally connected with a second hinge shaft; the screw rod is rotated to drive one of the second hinge shafts to move in the direction close to the first axis, so that all the second hinge shafts respectively drive the driving rods connected with the second hinge shafts to move in the direction close to the first axis under the transmission of the connecting rods.
Further, a plurality of pushing rods are arranged on the outer circumference of the lifting platform, the number of the pushing rods is the same as that of the clamping mechanisms, and each pushing rod is slidably connected with a telescopic pushing column of one clamping mechanism, which is located below, along the radial direction of the first axis.
Further, two scissor rod groups are respectively positioned at two sides of the telescopic jack post around the first axis in the circumferential direction, each scissor rod group consists of a plurality of scissor units, each scissor unit consists of two supporting rods, the midpoints of the two supporting rods are hinged and are third hinge points, and the end parts of the supporting rods of the two adjacent scissor units are hinged; each third hinge point is connected with a sleeve of one telescopic jack post, and the length of the supporting rod of the scissor unit is gradually increased along the upward or downward direction from the telescopic jack post positioned at the middle position, so that the distance between the telescopic jack posts positioned closer to the middle position is smaller.
Further, the polishing mechanism comprises a motor, a transmission shaft, a plurality of telescopic rods and polishing plates, wherein the motor is fixed on the support, the transmission shaft is rotatably and vertically slidably arranged on the support, and the plurality of telescopic rods are circumferentially distributed along the transmission shaft and are connected with the transmission shaft; the polishing device comprises a plurality of polishing plates, wherein each polishing plate is connected corresponding to one telescopic rod; the motor controls the transmission shaft to rotate and move up and down, so that the transmission shaft drives the grinding plate to polish the inner surface of the spherical workpiece through the telescopic rod.
The beneficial effects of the invention are as follows: the polishing equipment for the inner surface of the spherical filter screen of the slurry circulating pump clamps the spherical workpiece by adopting a plurality of clamping mechanisms distributed around the first axis, so that the spherical workpiece has a better clamping effect in the circumferential direction; in addition, as the lifting platform and the telescopic jack post positioned at the lowest part are coplanar in the initial state, and the transmission assembly enables the movement displacement of the lifting platform to be equal to the movement displacement of the telescopic jack post positioned at the middle position; when the telescopic jack posts positioned at the middle positions are abutted with the spherical workpiece, the lifting platform is lifted to enable the telescopic jack posts positioned at the middle positions to be coplanar with the horizontal plane of the spherical workpiece passing center, and the telescopic jack posts positioned at the middle positions of the clamping mechanisms are abutted against the same circumferential surface of the spherical workpiece passing center at the same time, so that the spherical workpiece is clamped and simultaneously the spherical workpiece is prevented from rotating; meanwhile, the distribution height of the telescopic jacking columns in the vertical direction is equal to the diameter of the spherical workpiece, and the telescopic jacking columns tightly jack the spherical workpiece in a surrounding mode; and because the part of the telescopic jacking columns positioned above the middle position and the part of the telescopic jacking columns positioned below the middle position are symmetrically distributed about the telescopic jacking columns at the middle position, the acting forces of the telescopic jacking columns on the upper part and the lower part of the spherical workpiece are equal, and the spherical workpiece is prevented from moving in the vertical direction.
Further, the distribution density of the telescopic jacking columns at the middle part of the spherical workpiece is larger than that at the upper end and the lower end of the spherical workpiece, and the larger the compression amount of the telescopic jacking columns at the middle position is, the larger the jacking force on the spherical workpiece is, and the more difficult the spherical workpiece is to loose.
Furthermore, the polishing equipment for the inner surface of the spherical filter screen of the slurry circulating pump is suitable for spherical workpieces with different sizes, clamping can be completed only by rotating the screw, and the polishing equipment is simple to operate and convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view showing the overall structure of an embodiment of a polishing apparatus for the inner surface of a spherical screen of a slurry circulation pump according to the present invention;
FIG. 2 is a schematic view showing the overall structure of an embodiment of a polishing apparatus for the inner surface of a spherical screen of a slurry circulation pump according to the present invention;
FIG. 3 is another schematic view showing the overall structure of an embodiment of a polishing apparatus for the inner surface of a spherical screen of a slurry circulation pump according to the present invention;
FIG. 4 is an enlarged schematic view of FIG. 3 at A;
FIG. 5 is an exploded view showing the overall structure of an embodiment of a polishing apparatus for the inner surface of a spherical screen of a slurry circulation pump according to the present invention;
FIG. 6 is a schematic view of a lifting mechanism in an embodiment of a polishing apparatus for the inner surface of a spherical screen of a slurry circulation pump according to the present invention;
FIG. 7 is a schematic view of a polishing mechanism in an embodiment of a polishing apparatus for the inner surface of a spherical screen of a slurry circulation pump according to the present invention;
FIG. 8 is a schematic view of a clamping mechanism in an embodiment of a polishing apparatus for the inner surface of a spherical screen of a slurry circulation pump according to the present invention;
FIG. 9 is an exploded view of a clamping mechanism in an embodiment of a polishing apparatus for an inner surface of a spherical screen of a slurry circulation pump according to the present invention
FIG. 10 is an enlarged schematic view of FIG. 9B;
in the figure: 100. a bracket; 110. a screw seat; 120. a slideway; 200. a polishing mechanism; 210. a motor; 220. a transmission shaft; 230. a telescopic rod; 240. polishing the plate; 300. a lifting mechanism; 310. a lifting platform; 311. pushing the push rod; 312. a circular groove; 320. a lifting rod; 330. a hydraulic cylinder; 400. a clamping mechanism; 410. a driving rod; 420. a telescopic jack post; 421. a sleeve; 422. a slide bar; 423. a connecting rod; 424. a limiting ring; 430. a transmission assembly; 431. a linkage rod; 432. a first piston cylinder; 433. an oil pipe; 440. a scissors fork set; 441. a brace rod; 500. a driving mechanism; 510. a link ring; 520. a screw; 600. a spherical workpiece.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of a polishing apparatus for an inner surface of a spherical screen of a slurry circulation pump according to the present invention, for polishing a spherical workpiece 600, as shown in fig. 1 to 10, comprises a stand 100, a polishing mechanism 200, a lifting mechanism 300, a clamping mechanism 400 and a driving mechanism 500,
the bracket 100 is disposed along a vertically extending first axis,
the lifting mechanism 300 includes a lifting platform 310, and the lifting platform 310 is slidably mounted on the support 100 up and down;
the spherical workpiece 600 is placed on the lifting platform 310 and moves up and down synchronously with the lifting platform 310; specifically, the lifting platform 310 is provided with a circular groove 312, and the circular groove 312 is coaxial with the first axis, and is used for placing the spherical workpiece 600 and enabling the center of the sphere of the spherical workpiece 600 to pass through the first axis;
the clamping mechanisms 400 are uniformly distributed circumferentially around the first axis, each clamping mechanism 400 comprises a driving rod 410, a telescopic jack 420, a transmission assembly 430 and a scissor rod group 440, and the driving rods 410 are vertically arranged and are slidably arranged on the bracket 100 along the radial direction of the first axis; the plurality of telescopic jacking columns 420 extend along the radial direction of the first axis, the plurality of telescopic jacking columns 420 are distributed along the vertical direction, the telescopic jacking columns 420 positioned at the middle position of the plurality of telescopic jacking columns 420 are fixedly connected with the driving rod 410, the other telescopic jacking columns 420 slide along the vertical direction and are synchronously and movably arranged on the driving rod 410 along the radial direction of the first axis along with the driving rod 410, and part of the telescopic jacking columns 420 positioned above the middle position and part of the telescopic jacking columns 420 positioned below the middle position are symmetrically distributed about the telescopic jacking columns 420 at the middle position; specifically, the end of each telescopic jack post 420 is provided with a square sliding block, the driving rod 410 is provided with a vertically extending sliding groove, the sliding blocks at the end of the telescopic jack post 420 at the middle position are fixed on the sliding groove, and the end of the telescopic jack post 420 at other positions can be installed on the sliding groove in an up-down sliding manner; the two adjacent telescopic jacking columns 420 are connected through the scissor rod group 440, when the telescopic jacking column 420 positioned at the lowest or uppermost part of the scissor rod group 440 is closed to the telescopic jacking column 420 positioned at the middle position, the telescopic jacking columns 420 positioned at other positions are closed to the telescopic jacking column 420 positioned at the middle position synchronously, and when the telescopic jacking column 420 positioned at the lowest or uppermost part of the scissor rod group is far away from the telescopic jacking column 420 positioned at the middle position, the telescopic jacking columns 420 positioned at other positions are far away from the telescopic jacking column 420 positioned at the middle position synchronously; the upper surface of the lifting platform 310 is coplanar with the lowest telescopic jack-prop 420 and is connected with the lowest telescopic jack-prop 420, the distance between one end, close to the first axis, of the telescopic jack-prop 420 at the middle position and the first axis is a first distance, the distance between the lowest telescopic jack-prop 420 and the telescopic jack-prop 420 at the middle position is a second distance, and in an initial state, the first distance is equal to the second distance;
the driving mechanism 500 drives the driving rod 410 to move to a position close to the first axis direction, and the telescopic jack post 420 positioned at the middle position is abutted against the spherical workpiece 600; the transmission assembly 430 transmits the movement of the driving rod 410 in the direction approaching to the first axis to move the lifting platform 310 upwards, and the movement displacement of the lifting platform 310 is equal to the movement displacement of the telescopic jack post 420 positioned at the middle position; further, the telescopic jack posts 420 positioned at the middle position are abutted against the spherical workpiece 600 along the direction of horizontally passing through the sphere center of the spherical workpiece 600, and meanwhile, the distribution height of the telescopic jack posts 420 in the vertical direction is equal to the diameter of the spherical workpiece 600, and the telescopic jack posts 420 tightly press the spherical workpiece 600 in a surrounding manner; and because the part of the telescopic jack posts 420 positioned above the middle position and the part of the telescopic jack posts 420 positioned below the middle position are symmetrically distributed about the telescopic jack posts 420 at the middle position, the acting forces of the telescopic jack posts 420 on the upper part and the lower part of the spherical workpiece 600 are equal, and the spherical workpiece 600 is prevented from moving in the vertical direction.
The polishing mechanism 200 is located above the spherical workpiece 600 and polishes the inner surface of the spherical workpiece 600 after the clamping mechanism 400 clamps the spherical workpiece 600.
In this embodiment, each telescopic jack 420 includes a sleeve 421, a sliding rod 422 and an elastic member (not shown in the figure), the sliding rod 422 and the sleeve 421 extend along the radial direction of the first axis and are connected by the elastic member, the sliding rod 422 is located on one side of the sleeve 421 near the first axis and is slidably connected with the sleeve 421, and a square sliding block is disposed at the end of the sleeve 421. The length of the sliding rod 422 extending out of the sleeve 421 and the deformation length of the elastic member are long enough, so that after the sliding rod 422 of the telescopic jack post 420 located at the middle position abuts against the spherical workpiece 600, and when the driving rod 410 further moves towards the direction close to the first axis to press the telescopic jack post 420 located at the middle position, the telescopic jack posts 420 located at other positions can abut against the spherical workpiece 600. The transmission assembly 430 includes a linkage rod 431, a first piston cylinder 432 and an oil pipe 433, wherein the linkage rod 431 is vertically disposed and located at one side of the driving rod 410 near the first axis and located in the same radial direction of the first axis as the driving rod 410, the linkage rod 431 is slidably mounted on the bracket 100 along the radial direction of the first axis, specifically, a plurality of slide ways 120 extending along the radial direction of the first axis are disposed on the bracket 100, and the driving rod 410 and the linkage rod 431 of each clamping mechanism 400 are slidably mounted on the same slide way 120; the sleeve 421 of the telescopic jack 420 positioned at the middle position is fixedly connected with the driving rod 410, the slide rod 422 of the telescopic jack 420 positioned at the middle position is fixedly connected with the linkage rod 431, and the telescopic jacks 420 at other positions can slide up and down and can pass through the linkage rod 431 in a radial direction of the first axis in a sliding manner; the first piston cylinder 432 is filled with hydraulic oil, one end of the first piston cylinder 432 is connected with the linkage rod 431, the other end of the first piston cylinder 432 is fixed on the bracket 100, and the first piston cylinder 432 is extruded when the linkage rod 431 moves towards the first axis direction; specifically, the first piston cylinder 432 includes a cylinder body and a piston rod, both of which are located at a side of the linkage rod 431 close to the first axis, and the cylinder body is located at a side of the piston rod close to the first axis and is slidably sealed with the piston rod, the cylinder body is connected with the bracket 100, the piston rod is connected with the linkage rod 431, and hydraulic oil in the cylinder body is extruded through the piston rod when the linkage rod 431 moves in a direction close to the first axis; the lifting mechanism 300 further comprises a hydraulic cylinder 330 and a lifting rod 320, wherein the hydraulic cylinder 330 is fixed on the frame and positioned below the lifting platform 310, the lifting rod 320 is installed on the hydraulic cylinder 330 in a vertically sliding manner and is in sliding sealing with the hydraulic cylinder 330, and hydraulic oil is filled in the hydraulic cylinder 330; the lifting platform 310 is fixed at the upper end of the lifting rod 320; one end of the oil pipe 433 is communicated with the inside of the first piston cylinder 432, the other end of the oil pipe 433 is communicated with the inside of the hydraulic cylinder 330, hydraulic oil in the first piston cylinder 432 enters the hydraulic cylinder 330 through the oil pipe 433 under the extrusion of the linkage rod 431, and the hydraulic oil entering the hydraulic cylinder 330 pushes the lifting rod 320 to move upwards, and the displacement of the radial inward movement of the linkage rod 431 along the first axis is equal to the displacement of the upward movement of the lifting platform 310 by configuring the compression ratio of the first piston cylinder 432 and the hydraulic cylinder 330. The oil pipe 433 is provided with a throttle valve (not shown) for controlling the on-off and flow rate of the oil pipe 433.
In this embodiment, the driving mechanism 500 includes a link ring 510 and a screw 520, where the link ring 510 is coaxial with the first axis, the link ring 510 is formed by enclosing a plurality of links around vertically extending hinge shafts from end to end, the hinge shafts of the link ring 510 are sequentially and alternately a first hinge shaft and a second hinge shaft, the number of the links is twice as many as the number of the clamping mechanisms 400, the number of the first hinge shaft and the second hinge shaft is equal to the number of the clamping mechanisms 400, for example, 6 clamping mechanisms 400 are provided, the link ring 510 is in a regular dodecagon shape, and 6 corresponding first hinge shafts and 6 second hinge shafts are provided; each first hinge shaft is slidably mounted to the bracket 100 along a radial direction of the first axis, and each second hinge shaft is connected to a driving rod 410 passing through the slideway 120 on the bracket 100 and connected to one clamping mechanism 400; the bracket 100 is provided with a screw seat 110, a screw 520 extends along the radial direction of the first axis and is in threaded fit with the screw seat 110, and one end of the screw 520 is rotationally connected with a second hinge shaft; the screw 520 is rotated to drive one of the second hinge shafts to move in the direction close to the first axis by rotating the screw 520, so that all the second hinge shafts respectively drive the driving rods 410 connected with the second hinge shafts to move in the direction close to the first axis under the transmission of the connecting rods.
In this embodiment, the lifting platform 310 is provided with a plurality of push rods 311 on the outer circumference, the number of push rods 311 is the same as that of the clamping mechanisms 400, and each push rod 311 is slidably connected to the telescopic jack 420 of one clamping mechanism 400 located at the lowest position along the radial direction of the first axis. Specifically, a connecting rod 423 is disposed at an end of the sleeve 421 of the lowermost telescopic jack post 420, which is far away from the sliding rod 422, and the connecting rod 423 passes through the driving rod 410 and is slidably connected to the jack rod 311 along the radial direction of the first axis.
In this embodiment, two scissor rod sets 440 are respectively located at two sides of the telescopic jack 420 around the first axis, each scissor rod set 440 is composed of a plurality of scissor units, each scissor unit is composed of two supporting rods 441, the middle points of the two supporting rods 441 are hinged around a third hinge shaft, and the end parts of the supporting rods 441 of two adjacent scissor units are hinged; a limiting ring 424 is sleeved outside the sleeve 421 of each telescopic jack post 420, each third hinge shaft is connected with the limiting ring 424 sleeved outside one telescopic jack post 420, and the length of the stay 441 of the scissor unit is gradually increased along the upward or downward direction from the telescopic jack post 420 positioned at the middle position, so that the distance between the telescopic jack posts 420 which are closer to the middle position is smaller; further, the distribution density of the telescopic jack-prop 420 at the middle part of the spherical workpiece 600 is larger than the distribution density at the upper end and the lower end of the spherical workpiece 600, and the larger the compression amount of the telescopic jack-prop 420 at the middle position is, the larger the jacking force to the spherical workpiece 600 is, and the more difficult the spherical workpiece 600 is to loose.
In this embodiment, the polishing mechanism 200 includes a motor 210, a transmission shaft 220, a telescopic rod 230 and a polishing plate 240, the motor 210 is fixed on the bracket 100, the transmission shaft 220 is rotatably and slidably mounted on the bracket 100 up and down, the telescopic rod 230 has a plurality of telescopic rods 230, and the plurality of telescopic rods 230 are circumferentially distributed along the transmission shaft 220 and are connected with the transmission shaft 220; a plurality of sanding plates 240, each sanding plate 240 being coupled to one of the telescoping rods 230; the motor 210 rotates and moves up and down by controlling the driving shaft 220 such that the driving shaft 220 drives the polishing plate 240 to polish the inner surface of the spherical workpiece 600 through the telescopic rod 230.
In the polishing device for the inner surface of the spherical filter screen of the slurry circulating pump, in the initial state, the first interval and the second interval are equal, and the spherical workpiece 600 is placed on the lifting platform 310. And the screw 520 is rotated afterwards, so that the screw 520 drives one of the second hinge shafts to move in the direction close to the first axis, and all the second hinge shafts respectively drive the driving rods 410 connected with the second hinge shafts to move in the direction close to the first axis under the transmission of the connecting rods. The driving rod 410 drives the linkage rod 431 to synchronously move towards the direction close to the first axis by extruding the telescopic jack-up column 420 positioned at the middle position, the linkage rod 431 drives the lifting platform 310 to synchronously move upwards by extruding the hydraulic oil in the first piston cylinder 432, and when the lifting platform 310 moves upwards, the push rod 311 pushes the telescopic jack-up column 420 positioned at the lowest position to move upwards, and the telescopic jack-up column 420 positioned at the lowest position drives the telescopic jack-up columns 420 positioned at the middle position except the other telescopic jack-up columns positioned at the middle position to be close by the shearing fork rod group 440. Until the slide bar 422 of the telescopic jack 420 positioned at the middle position is abutted with the spherical workpiece 600, the screw 520 is continuously rotated to enable the driving rod 410 to move towards the direction close to the first axis, the telescopic jack 420 positioned at the middle position is extruded, meanwhile, the telescopic jacks 420 positioned at other positions can be abutted with the spherical workpiece 600, and in the process, the slide bar 422 of the telescopic jack 420 positioned at the middle position is not moved any more, the linkage rod 431 is not moved any more, and the lifting platform 310 keeps the current position. Until the driving rod 410 cannot move further towards the direction close to the first axis, the rotation of the screw 520 is stopped, the screw 520 is self-locked under the threaded fit with the threaded seat 110, so that the driving rod 410 keeps the current position and pushes the telescopic jacking column 420 to jack the spherical workpiece 600. After the plurality of clamping mechanisms 400 clamp the spherical workpiece 600, the grinding mechanism 200 begins to polish the inner surface of the spherical workpiece 600. When the workpiece needs to be disassembled, only the screw 520 is required to be rotated along the opposite direction, so that the screw 520 drives one of the second hinge shafts to move away from the first axis direction, and all the second hinge shafts respectively drive the driving rods 410 connected with the second hinge shafts to move towards the direction close to the first axis direction under the transmission of the connecting rods, and the driving rods 410 drive the telescopic jacking columns 420 to be away from the spherical workpiece 600.
Since the lifting platform 310 and the telescopic jack-up column 420 positioned at the lowest are coplanar in the initial state, and the displacement of the movement of the lifting platform 310 is equal to the displacement of the movement of the telescopic jack-up column 420 positioned at the middle position by the transmission component 430; when the telescopic jack-prop 420 positioned at the middle position is abutted with the spherical workpiece 600, the lifting platform 310 is lifted to enable the telescopic jack-prop 420 positioned at the middle position to be coplanar with the horizontal plane passing through the sphere center of the spherical workpiece 600, the telescopic jack-props 420 positioned at the middle position of the plurality of clamping mechanisms 400 are abutted with the same circumferential surface passing through the sphere center of the spherical workpiece 600 at the same time, and the spherical workpiece 600 is clamped and the rotation of the spherical workpiece 600 is avoided; meanwhile, the distribution height of the plurality of telescopic jacking columns 420 in the vertical direction is equal to the diameter of the spherical workpiece 600, and the plurality of telescopic jacking columns 420 tightly jack the spherical workpiece 600 in a surrounding manner; the part of the telescopic jack posts 420 positioned above the middle position and the part of the telescopic jack posts 420 positioned below the middle position are symmetrically distributed about the telescopic jack posts 420 at the middle position, so that the acting forces of the plurality of telescopic jack posts 420 on the upper part and the lower part of the spherical workpiece 600 are equal, and the spherical workpiece 600 is prevented from moving in the vertical direction; and the spherical workpiece 600 is clamped in the circumferential direction with a better clamping effect by the combined action of the plurality of clamping mechanisms 400. The shearing fork rod group 440 makes the distribution density of the telescopic jack posts 420 at the middle part of the spherical workpiece 600 larger than the distribution density at the upper and lower ends of the spherical workpiece 600, and the larger the compression amount of the telescopic jack posts 420 near the middle position is, the larger the jacking force to the spherical workpiece 600 is, and the less looseness is generated to the spherical workpiece 600.
The polishing equipment for the inner surface of the spherical filter screen of the slurry circulating pump is suitable for spherical workpieces 600 with different sizes, and can enable the telescopic jack-prop 420 positioned at the middle position to prop against the horizontal position passing through the center of the sphere for the spherical workpieces 600 with different sizes.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (9)

1. The utility model provides a ball filter screen internal surface polishing equipment of thick liquid circulating pump which characterized in that: the polishing device comprises a bracket, a polishing mechanism, a lifting mechanism, a clamping mechanism and a driving mechanism, wherein the bracket is arranged along a vertical first axis; the spherical workpiece is placed on the lifting platform and synchronously moves along with the lifting platform; the plurality of clamping mechanisms are uniformly distributed around the first axis, each clamping mechanism comprises a driving rod, a telescopic jacking column, a transmission assembly and a shearing fork rod group, and the driving rods are vertically arranged and slidably arranged on the bracket along the direction perpendicular to the first axis; the plurality of telescopic jacking columns extend along the direction perpendicular to the first axis, the plurality of telescopic jacking columns are distributed along the vertical direction, the telescopic jacking columns positioned at the middle position in the plurality of telescopic jacking columns are fixedly connected with the driving rod, other telescopic jacking columns can be slidably arranged on the driving rod along the vertical direction and synchronously move with the driving rod, and part of the telescopic jacking columns positioned above the middle position and part of the telescopic jacking columns positioned below the middle position are symmetrically distributed about the telescopic jacking columns at the middle position; adjacent two telescopic jacking columns are connected through a shearing fork rod group, and the shearing fork rod group enables other telescopic jacking columns to synchronously approach to the telescopic jacking column positioned at the middle position; the upper surface of the lifting platform is coplanar with the lowest telescopic jack-prop and is connected with the lowest telescopic jack-prop, the distance between the telescopic jack-prop at the middle position and the first axis is a first distance, the distance between the lowest telescopic jack-prop and the telescopic jack-prop at the middle position is a second distance, and in an initial state, the first distance is equal to the second distance; the driving mechanism drives the driving rod to move to a position close to the first axis direction until the telescopic jack post positioned at the middle position is abutted against the spherical workpiece; the transmission assembly transmits the movement of the driving rod in the direction close to the first axis to enable the lifting platform to move upwards, and the movement displacement of the lifting platform and the telescopic top column positioned at the middle position is equal; the polishing mechanism is positioned above the spherical workpiece and polishes the inner surface of the spherical workpiece after the clamping mechanism clamps the spherical workpiece;
each telescopic jack post comprises a sleeve, a slide bar and an elastic piece, wherein the slide bar and the sleeve extend along the radial direction of the first axis and are connected through the elastic piece, and the slide bar is positioned on one side of the sleeve close to the first axis and is in sliding connection with the sleeve; the transmission assembly comprises a linkage rod, a first piston cylinder and an oil pipe, wherein the linkage rod is vertically arranged and positioned on one side of the driving rod, which is close to the first axis, and is positioned in the same radial direction of the first axis with the driving rod, and the linkage rod can be slidably arranged on the bracket along the radial direction of the first axis; the sleeve of the telescopic jack post positioned at the middle position is fixedly connected with the driving rod, the slide bar of the telescopic jack post positioned at the middle position is fixedly connected with the linkage rod, and the telescopic jack posts positioned at other positions can slide up and down and can pass through the linkage rod in a radial sliding manner along the first axis; the first piston cylinder is filled with hydraulic oil, one end of the first piston cylinder is connected with the linkage rod, the other end of the first piston cylinder is fixed on the bracket, and the first piston cylinder is extruded when the linkage rod moves towards the direction close to the first axis; the lifting mechanism further comprises a hydraulic cylinder and a lifting rod, the hydraulic cylinder is fixed on the frame and positioned below the lifting platform, the lifting rod is installed on the hydraulic cylinder in a vertically sliding manner, and the lifting platform is fixed at the upper end of the lifting rod; one end of the oil pipe is communicated with the interior of the first piston cylinder, the other end of the oil pipe is communicated with the interior of the hydraulic cylinder, hydraulic oil in the first piston cylinder enters the hydraulic cylinder through the oil pipe under the extrusion of the linkage rod, and hydraulic oil entering the hydraulic cylinder pushes the lifting rod to move upwards, and the displacement of the radial inward movement of the linkage rod along the first axis is equal to the displacement of the upward movement of the lifting platform by configuring the compression ratio of the first piston cylinder and the hydraulic cylinder.
2. The apparatus for polishing the inner surface of a spherical screen of a slurry circulation pump according to claim 1, wherein: the driving mechanism comprises a connecting rod ring and a screw rod, the connecting rod ring is coaxial with the first axis, the connecting rod ring is formed by encircling a plurality of connecting rods around vertically extending hinge shafts from beginning to end, the hinge shafts of the connecting rod ring are sequentially and alternately a first hinge shaft and a second hinge shaft, the number of the connecting rods is twice the number of the clamping mechanisms, and the number of the first hinge shafts and the second hinge shafts are equal to the number of the clamping mechanisms.
3. The apparatus for polishing the inner surface of a spherical screen of a slurry circulation pump according to claim 2, wherein: each first hinge shaft is slidably mounted on the bracket along the radial direction of the first axis, and each second hinge shaft is connected with a driving rod of one clamping mechanism.
4. A spherical screen inner surface polishing apparatus for a slurry circulation pump as set forth in claim 3, wherein: the bracket is provided with a thread seat, the screw rod extends along the radial direction of the first axis and is in threaded fit with the thread seat, and one end of the screw rod is rotationally connected with a second hinge shaft; the screw rod is rotated to drive one of the second hinge shafts to move in the direction close to the first axis, so that all the second hinge shafts respectively drive the driving rods connected with the second hinge shafts to move in the direction close to the first axis under the transmission of the connecting rods.
5. The apparatus for polishing the inner surface of a spherical screen of a slurry circulation pump according to claim 1, wherein: the outer circumference of the lifting platform is provided with a plurality of pushing rods, and the number of the pushing rods is the same as that of the clamping mechanisms.
6. The apparatus for polishing an inner surface of a spherical screen of a slurry circulation pump according to claim 5, wherein: each push rod is slidably connected with a telescopic push column of a clamping mechanism, which is positioned at the lowest part, along the radial direction of the first axis.
7. The apparatus for polishing the inner surface of a spherical screen of a slurry circulation pump according to claim 1, wherein: the two shearing fork rod groups are respectively positioned at two sides of the telescopic jack post around the first axial line in the circumferential direction, each shearing fork rod group is composed of a plurality of shearing fork units, each shearing fork unit is composed of two supporting rods, the midpoints of the two supporting rods are hinged and are third hinge points, and the end parts of the supporting rods of the two adjacent shearing fork units are hinged.
8. The apparatus for polishing the inner surface of a spherical screen of a slurry circulation pump according to claim 7, wherein: each third hinge point is connected with a sleeve of one telescopic jack post, and the length of the supporting rod of the scissor unit is gradually increased along the upward or downward direction from the telescopic jack post positioned at the middle position, so that the distance between the telescopic jack posts positioned closer to the middle position is smaller.
9. The apparatus for polishing the inner surface of a spherical screen of a slurry circulation pump according to claim 1, wherein: the polishing mechanism comprises a motor, a transmission shaft, a plurality of telescopic rods and polishing plates, wherein the motor is fixed on the support, the transmission shaft is rotatably and vertically slidably arranged on the support, and the plurality of telescopic rods are circumferentially distributed along the transmission shaft and are connected with the transmission shaft; the polishing device comprises a plurality of polishing plates, wherein each polishing plate is connected corresponding to one telescopic rod; the motor controls the transmission shaft to rotate and move up and down, so that the transmission shaft drives the grinding plate to polish the inner surface of the spherical workpiece through the telescopic rod.
CN202311322325.7A 2023-10-13 2023-10-13 Spherical filter screen inner surface polishing equipment of slurry circulating pump Active CN117047644B (en)

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CN114453990A (en) * 2022-04-12 2022-05-10 徐州中顺尚奕机械制造有限公司 Mixed cleaning type heat expansion type metal surface omnibearing nondestructive rust removing processing device
CN218697449U (en) * 2022-10-20 2023-03-24 温州扬宏阀门有限公司 Practice thrift spheroid burnishing machine in space
CN116604366A (en) * 2023-05-17 2023-08-18 浙江多马阀门科技有限公司 Fixing assembly and method for processing valve element of ball valve

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Publication number Priority date Publication date Assignee Title
US5011207A (en) * 1987-08-03 1991-04-30 Stevens S Scott Robotic end effector for grasping objects
US8534728B1 (en) * 2012-11-19 2013-09-17 Harris Corporation Adaptive robotic gripper
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CN208163130U (en) * 2018-04-04 2018-11-30 周雅莉 A kind of spherical work-piece clamping device
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