CN115042121B - Assembly tool and process for quick-change valve rod - Google Patents
Assembly tool and process for quick-change valve rod Download PDFInfo
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- CN115042121B CN115042121B CN202210914122.6A CN202210914122A CN115042121B CN 115042121 B CN115042121 B CN 115042121B CN 202210914122 A CN202210914122 A CN 202210914122A CN 115042121 B CN115042121 B CN 115042121B
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- 238000000034 method Methods 0.000 title claims abstract description 7
- 230000006978 adaptation Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Valve Housings (AREA)
- Lift Valve (AREA)
Abstract
The invention belongs to the technical field of valve rod assembly, in particular to an assembly tool and a process for quickly replacing a valve rod, aiming at the problem that a valve body with a clamping ring cannot be disassembled when an existing assembly device is disassembled and replaced, the invention provides the following scheme. According to the invention, when the valve rod is replaced, the retainer ring of the valve rod is only required to be pressed down by controlling the pressing device, the electric push rod III is started after the retainer ring is exposed, the retainer ring can be cut off, and then the retainer ring of the valve rod and related parts can be removed one by one.
Description
Technical Field
The invention relates to the technical field of valve rod assembly, in particular to an assembly tool and process for quickly replacing a valve rod.
Background
The valve rod is an important valve component and is used for transmission, the upper part is connected with an actuating mechanism or a handle, and the lower part directly drives the valve core to move or rotate so as to realize the valve opening and closing or adjusting function. As is well known, valve stems and valve stem brackets are typically designed as interference fits, with the valve stem being fitted into the valve stem bracket. In the prior art, when the valve rod is replaced, the check ring sleeved on the outer wall of the top end of the valve rod is pressed down by a socket wrench, and then the check ring and the compression spring can be removed after the check ring is removed.
Through searching, the patent with the Chinese patent application number of CN204449848U discloses a simple valve rod assembly machine which comprises a fixed seat, a workbench, an upright post, a guide pressing block, a top seat, a compression rod and a driving device from bottom to top; the workbench is positioned on the fixed seat and fixed relative to the fixed seat; the upright post is arranged between the fixed seat and the top seat and is fixedly connected with the fixed seat and the top seat; the guide pressing block is fixedly connected with the compression rod, and the acting end of the compression rod acts on the guide pressing block downwards; at least two pinholes have still been seted up to the bottom of direction briquetting, and the hole depth direction of pinhole is unanimous with the direction of compression pole: although the device can be used for clamping, screwing, pulling and the like the valve rod of the valve body, the valve body with the clamping ring cannot be detached at all when the valve body is detached and replaced.
Disclosure of Invention
The invention provides an assembly fixture for quickly replacing a valve rod, which comprises a fixed seat, a valve rod bracket and a valve rod, wherein the fixed seat is internally provided with a cavity and is integrally in a cuboid structure, the valve rod bracket and the valve rod are fixed above the fixed seat and are to be replaced and disassembled, a valve rod retainer ring and a clamping ring are respectively sleeved on the circumferential outer wall of the valve rod close to the top end, a clamping device matched with the valve rod is arranged in the middle of the upper surface of the fixed seat, a vertical supporting frame is fixed on the upper surface of the fixed seat close to one end of the fixed seat, a top plate is fixed on the top end of the supporting frame, and a pressing device is arranged on the lower surface of the top plate; the clamping ring is used for pressing down the valve rod check ring sleeved on the circumferential outer wall of the valve rod close to the top end so as to expose the clamping ring, so that the clamping ring can be conveniently taken out; the upper surface of the fixing seat is fixedly provided with a groove-shaped upright post with an opening facing the valve rod support, a boss sliding block is connected in a sliding way in a sliding groove of the groove-shaped upright post, a through sliding hole is formed in the middle of one side of the boss sliding block, which is close to the valve rod support, a sliding supporting rod is connected in a sliding way in one side, which is close to the clamping ring, of the boss sliding block, two mutually symmetrical cutter rods are fixedly arranged at two sides of the sliding supporting rod, which are close to one end of the clamping ring, and the distance between the two cutter rods is matched with the diameter of the clamping ring, so that the clamping ring can be accurately cut off when the cutter rods are pushed in; an electric push rod III connected with the sliding supporting rod is fixed on one side, far away from the cutter bar, of the boss sliding block, and an electric push rod II is fixed between the lower surface of the boss sliding block and the upper surface of the fixing seat; through the setting of two cutter bars cooperation push device, can be when changing the valve rod, only need control push device to press the valve rod retaining ring down earlier, start electric putter three after exposing the snap ring again can be with the snap ring excision, later can demolish valve rod retaining ring and relevant spare part one by one.
As the preferred in the invention, the said clamping device includes the bearing block fixed on inner wall of bottom of the fixed seat, and the top of the bearing block rotates and connects with the support tube, the top of the support tube is fixed with the rotary disk, there are three arcuate holes distributed symmetrically in the center on the rotary disk, the circumference outer wall of the rotary disk is cup jointed with the self-locking ratchet, and the top inner wall of the fixed seat locates near the edge of the self-locking ratchet and has stopping and supporting rods, one end of stopping and supporting rod far away from self-locking ratchet stretches out of the side of the fixed seat; the stop supporting rod is convenient to be pressed manually to help the self-locking ratchet to unlock; the lower surface of the self-locking ratchet wheel is fixedly provided with a concentric driven gear ring, a gear motor is fixed below the edge of the inner wall of the bottom of the fixed seat, which is close to the driven gear ring, and the top end of an output shaft of the gear motor is fixedly provided with a driving gear meshed with the driven gear ring; the rotating disc can be driven to rotate positively and negatively by controlling the positive and negative rotation of the gear motor, and the clamping device can be used for fixing the valve rod in a tightening manner by matching with the arrangement of the arc-shaped holes with gradually changed distances between the two ends and the circle center.
As the preferred part of the invention, the middle part of the upper surface of the fixed seat is provided with a round hole, the circumferential edge of the round hole is provided with three guide holes which are distributed in a central symmetry way about the round hole, the guide holes are communicated with the round hole, the three guide holes are all in sliding connection with positioning pull rods which are integrally in an L-shaped structure, the vertical rod parts of the positioning pull rods are inserted into the inner wall of the bottom of the valve rod, the upper surfaces of the horizontal rods of the three positioning pull rods are all fixed with sliding blocks, both sides of each sliding block are provided with guide sliding rails which point to the circle center of the round hole, and the lower surface of each positioning pull rod is fixed with a round rod which is inserted into the arc hole; through the setting of the round bar in inserting the arc hole, when rotating the rotary disk, can drive three location pull rod and remove all around, can fix the relative position of valve rod and location pull rod this moment.
In the invention, preferably, the groove bottom of the groove-shaped upright post and the supporting frame are provided with mutually overlapped strip-shaped sliding holes, and a gap is reserved between the inner wall of the strip-shaped sliding hole and the outer wall of the electric push rod III; ensure that the electric push rod III can freely and smoothly move up and down so as to ensure that the cutter bar moves to the correct height.
As the preferable choice of the invention, the said hold-down device includes the first electric putter fixed on lower surface of roof, the bottom of the extension rod of the first electric putter is fixed with the C-shaped briquetting, and the lower surface of the C-shaped briquetting rotates and connects with the supporting ring, the lower surface of the supporting ring is fixed with three Z-shaped supporting rods distributed in flaring structure equidistantly, the bottom of three Z-shaped supporting rods is fixed with the same check ring clamping piece, and the shape of the inner race of the check ring clamping piece is clamped with appearance of the check ring of the valve stem; the outer diameter of the retainer ring clamping piece is smaller than the diameter of the inner ring of the valve rod bracket; the pressing device can be pressed down for a sufficient distance when the valve rod check ring is driven to press down, so that the cutter rod has a sufficient operation space.
In the invention, preferably, the inner ring of the retainer ring clamping piece is arranged into a hexagonal hole structure, and the retainer ring clamping piece is a magnetic piece and can adsorb the valve retainer ring.
As the invention, preferably, the circumference outer wall of the C-shaped pressing block is fixed with three equidistant anti-slip clamping blocks, and the top circumference edge of the supporting ring is reserved with an anti-slip ring matched with the anti-slip clamping blocks, so that the supporting ring can be lifted and rotated on the lower surface of the C-shaped pressing block all the time.
In the invention, preferably, the upper surface of the supporting ring is provided with a ball groove concentric with the supporting ring, and a plurality of balls are arranged in the ball groove, so that the friction resistance between the supporting ring and the C-shaped pressing block is reduced.
As the invention is preferable, a plurality of stirring rods which are distributed at equal intervals are fixed on the circumferential outer wall of the supporting ring, when the top end of the valve rod is provided with the threaded screw, the stirring rods can be stirred to drive the valve rod check ring to rotate, and then the upper and lower positions of the valve rod check ring are moved.
An assembly process for a quick-change valve stem, comprising the steps of:
step one: the integral valve rod of the valve rod to be detached and replaced and the valve rod bracket are fixed on a clamping device above the fixed seat; before fixing, ensuring that the vertical rods of the three positioning pull rods are gathered in a middle round hole, sleeving the hole at the bottom of the valve rod on the vertical rods of the three positioning pull rods, and starting the gear motor in the forward direction;
step two: under the action of the speed reducing motor and the rotating disc, the three positioning pull rods are quickly driven to move around by matching with the arrangement of the round rods, and the relative positions of the valve rod and the positioning pull rods are fixed at the moment;
step three: controlling the extension rod of the first electric push rod in the pressing device to extend, namely slowly buckling the valve rod check ring by the check ring clamping piece, and then continuously controlling the extension rod of the first electric push rod to extend, so that the valve rod check ring can be pressed down to expose the clamp ring;
step four: then the second electric push rod is started to adjust the height of the cutter bar to be consistent with the height of the clamping ring, and the third electric push rod is started to push out the cutter bar so as to cut off the clamping ring; and then the valve rod check rings and related parts are removed one by one.
The beneficial effects of the invention are as follows:
1. through the arrangement of the two cutter bars matched with the pressing device, when the valve rod is replaced, the pressing device is controlled to press down the valve rod check ring, the electric push rod III is started after the clamp ring is exposed, the clamp ring can be cut off, and then the valve rod check ring and related parts can be removed one by one;
2. the rotating disc can be driven to rotate positively and negatively by controlling the positive and negative rotation of the gear motor, and the clamping device can realize the tightness fixation of the valve rod and the adjustment of clamping force by matching with the arrangement of the arc-shaped holes with the distance between the two ends and the circle center gradually changing.
3. Through the setting of the round bar in inserting the arc hole, when rotating the rotary disk, can drive three location pull rod and remove all around, can fix the relative position of valve rod and location pull rod this moment.
Drawings
FIG. 1 is a schematic diagram of the whole structure of an assembly fixture for quick-change valve rods according to the present invention;
FIG. 2 is a schematic structural view of an assembling fixture clamping device for quick-change valve rods according to the present invention;
FIG. 3 is a schematic view of a rotary disk in an assembly tooling for quick-change valve stems according to the present invention;
FIG. 4 is a block diagram of a hold-down device of an assembly fixture for quick-change valve stems according to the present invention;
FIG. 5 is an assembly view of a mechanism for removing a snap ring in an assembly fixture for quick-change valve stems according to the present invention;
FIG. 6 is a front view of an assembly fixture for quick-change valve stems according to the present invention;
FIG. 7 is a partial cross-sectional view taken along line A-A in FIG. 6 of an assembly fixture for quick-change valve stems in accordance with the present invention;
FIG. 8 is an overall structure diagram of the snap ring in the assembly fixture for quick-change valve rods.
In the figure: 1. a fixing seat; 2. a guide hole; 3. a valve stem; 4. a valve stem bracket; 5. a pressing device; 51. the retainer ring clamping piece; 52. a Z-shaped strut; 53. an anti-slip clamping block; 54. c-shaped pressing blocks; 55. an electric push rod I; 56. a backing ring; 57. a toggle rod; 6. a top plate; 7. a support frame; 8. a boss slider; 9. a sliding support rod; 10. a cutter bar; 11. a trough-type upright post; 12. an electric push rod II; 13. a rotating disc; 14. a guide rail; 15. a sliding block; 16. positioning a pull rod; 17. a drive gear; 18. a speed reducing motor; 19. self-locking ratchet wheels; 20. a driven gear ring; 21. an arc-shaped hole; 22. a stop abutment rod; 23. a slide hole; 24. an electric push rod III; 25. a valve rod retainer ring; 26. a bar-shaped slide hole; 27. and a clasp.
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.
Referring to fig. 1-8, an assembly fixture for quick-changing valve rods comprises a fixed seat 1 with a rectangular structure in the whole cavity, a valve rod bracket 4 and a valve rod 3, wherein the valve rod bracket 4 and the valve rod 3 are fixed above the fixed seat 1 and are to be replaced and detached, a valve rod check ring 25 and a clamping ring 27 are respectively sleeved on the circumference outer wall of the valve rod 3 near the top end, a clamping device matched with the valve rod 3 is arranged in the middle of the upper surface of the fixed seat 1, a vertical supporting frame 7 is fixed on the upper surface of the fixed seat 1 near one end of the upper surface, a top plate 6 is fixed on the top end of the supporting frame 7, and a pressing device 5 is arranged on the lower surface of the top plate 6; the valve rod retainer ring 25 sleeved on the circumferential outer wall of the valve rod 3 close to the top end is pressed down to expose the retainer ring 27, so that the retainer ring 27 can be taken out conveniently; the upper surface of the fixed seat 1 is fixed with a groove-shaped upright post 11 with an opening facing the valve rod support 4 on one side close to the support frame 7, a boss sliding block 8 is connected in a sliding way in a sliding groove of the groove-shaped upright post 11, a through sliding hole 23 is formed in the middle of one side of the boss sliding block 8 close to the valve rod support 4, a sliding supporting rod 9 is connected in a sliding way on one side of the sliding hole 23 close to the clamping ring 27, two mutually symmetrical cutter rods 10 are fixed on two sides of the sliding supporting rod 9 close to one end of the clamping ring 27, and the distance between the two cutter rods 10 is matched with the diameter of the clamping ring 27, so that the clamping ring 27 can be accurately cut off when the cutter rods 10 are pushed in; an electric push rod III 24 connected with the sliding supporting rod 9 is fixed on one side of the boss sliding block 8 far away from the cutter bar 10, and an electric push rod II 12 is fixed between the lower surface of the boss sliding block 8 and the upper surface of the fixed seat 1; through the setting of two cutter bars 10 cooperation push device 5, can be when changing valve rod 3, only need control push device 5 to press down valve rod retaining ring 25 earlier, start electric putter three 24 again after exposing snap ring 27 and can excision snap ring 27, later can demolish valve rod retaining ring 25 and relevant spare part one by one.
Referring to fig. 2-3, the clamping device comprises a bearing seat fixed on the inner wall of the bottom of the fixed seat 1, the top of the bearing seat is rotatably connected with a supporting pipe, the top end of the supporting pipe is fixedly provided with a rotary disk 13, three arc-shaped holes 21 which are symmetrically distributed in the center are formed in the rotary disk 13, the circumferential outer wall of the rotary disk 13 is sheathed with a self-locking ratchet wheel 19, the inner wall of the top of the fixed seat 1 is positioned near the edge of the self-locking ratchet wheel 19 and is provided with a stop supporting rod 22, and one end of the stop supporting rod 22, which is far away from the self-locking ratchet wheel 19, extends out of the side surface of the fixed seat 1; the self-locking ratchet wheel 19 is helped to be unlocked by manually pressing the retaining support rod 22; a concentric driven gear ring 20 is fixed on the lower surface of the self-locking ratchet wheel 19, a gear motor 18 is fixed below the edge of the inner wall of the bottom of the fixed seat 1, which is close to the driven gear ring 20, and a driving gear 17 meshed with the driven gear ring 20 is fixed at the top end of an output shaft of the gear motor 18; the rotating disk 13 can be driven to rotate positively and negatively by controlling the positive and negative rotation of the gear motor 18, and the clamping device 5 can be fixed on the valve rod 3 in a tightening manner by matching with the arrangement of the arc-shaped holes 21 with gradually changed distances between the two ends and the circle center.
Referring to fig. 2-3, a round hole is formed in the middle of the upper surface of the fixing seat 1, three guide holes 2 which are distributed in a central symmetry manner with respect to the round hole are formed in the circumferential edge of the round hole, the guide holes 2 are communicated with the round hole, positioning pull rods 16 which are integrally in an L-shaped structure are connected in a sliding manner in the three guide holes 2, vertical rod parts of the positioning pull rods 16 are inserted into the inner wall of the bottom of the valve rod 3, sliding blocks 15 are fixed on the upper surfaces of horizontal rods of the three positioning pull rods 16, guide sliding rails 14 which point to the circle center of the round hole are arranged on two sides of each sliding block 15, and round rods which are inserted into arc-shaped holes 21 are fixed on the lower surface of each positioning pull rod 16; by arranging the round rod inserted into the arc-shaped hole 21, when the rotary disk 13 is rotated, the three positioning pull rods 16 can be driven to move around, and the relative positions of the valve rod 3 and the positioning pull rods 16 can be fixed.
Referring to fig. 7, the bottom of the groove-shaped upright post 11 and the supporting frame 7 are provided with mutually overlapped strip-shaped sliding holes 26, and a gap is reserved between the inner wall of each strip-shaped sliding hole 26 and the outer wall of the electric push rod III 24; ensuring that the third electric push rod 24 can freely and smoothly move up and down to ensure that the cutter bar 10 moves to the correct height.
Referring to fig. 4, the pressing device 5 includes an electric push rod one 55 fixed on the lower surface of the top plate 6, a C-shaped pressing block 54 is fixed at the bottom end of an extension rod of the electric push rod one 55, a supporting ring 56 is rotatably connected to the lower surface of the C-shaped pressing block 54, three Z-shaped supporting rods 52 distributed equidistantly and having a flaring structure are fixed on the lower surface of the supporting ring 56, the same retaining ring clamping piece 51 is fixed at the bottom ends of the three Z-shaped supporting rods 52, and the shape of the inner ring of the retaining ring clamping piece 51 is clamped with the shape of the valve rod retaining ring 25; the outer diameter of the retainer clip 51 is smaller than the diameter of the inner ring of the valve rod bracket 4; ensuring that the hold-down device 5 can be held down a sufficient distance when the valve stem retainer 25 is pushed down, so that the cutter bar 10 has sufficient operating space.
Referring to fig. 6-8, the inner ring of the retainer ring clamping piece 51 is arranged to be of a hexagonal hole-shaped structure, the retainer ring clamping piece 51 is a magnetic piece, the valve retainer ring 25 can be adsorbed, three equidistantly distributed anti-slip clamping blocks 53 are fixed on the circumferential outer wall of the C-shaped pressing block 54, an anti-slip ring matched with the anti-slip clamping blocks 53 is reserved at the circumferential edge of the top of the supporting ring 56, the supporting ring 56 can be lifted and rotated on the lower surface of the C-shaped pressing block 54 all the time, ball grooves concentric with the supporting ring 56 are formed in the upper surface of the supporting ring 56, a plurality of balls are arranged in the ball grooves, and friction resistance between the supporting ring 56 and the C-shaped pressing block 54 is reduced.
Referring to fig. 6-8, a plurality of toggle rods 57 distributed at equal intervals are fixed on the circumferential outer wall of the supporting ring 56, and when a threaded opening is arranged at the top end of the valve rod 3, the toggle rods 57 can be toggled to drive the valve rod check ring 25 to rotate, so that the valve rod check ring 25 moves up and down.
An assembly process for a quick-change valve stem, comprising the steps of:
step one: the integral valve rod 3 of the valve rod 3 to be detached and replaced and the valve rod bracket 4 are fixed on a clamping device above the fixed seat 1; before fixing, ensuring that the vertical rods of the three positioning pull rods 16 are gathered in a middle round hole, sleeving the hole at the bottom of the valve rod 3 on the vertical rods of the three positioning pull rods 16, and then starting the gear motor 18 in the forward direction;
step two: under the action of the speed reducing motor 18 and the rotary disk 13, the three positioning pull rods 16 are quickly driven to move around by matching with the arrangement of the round rods, and the relative positions of the valve rod 3 and the positioning pull rods 16 are fixed at the moment;
step three: the extension rod of the first electric push rod 55 in the pressing device is controlled to extend, namely the retainer ring clamping piece 51 slowly clamps the valve rod retainer ring 25, and then the extension rod of the first electric push rod 55 is controlled to extend, so that the valve rod retainer ring 25 can be pressed down to expose the retainer ring 27;
step four: the second electric push rod 12 is started again to adjust the height of the cutter bar 10 to be consistent with the height of the clamping ring 27, and the third electric push rod 24 is started again to push out the cutter bar 10 so as to cut off the clamping ring 27; the stem retainer 25 and associated components are then removed one by one.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The utility model provides an assembly fixture for quick change valve rod, is including establishing fixing base (1) that the cavity is whole to be cuboid structure and fixing in the middle of fixing base (1) top wait to trade valve rod support (4) and valve rod (3) dismantled, and valve rod (3) circumference outer wall is close to the top and has cup jointed valve rod retaining ring (25) and snap ring (27) respectively, its characterized in that, the upper surface middle part of fixing base (1) is provided with the clamping device with valve rod (3) looks adaptation, and the upper surface of fixing base (1) is close to wherein one end is fixed with vertical support frame (7), and the top of support frame (7) is fixed with roof (6), and the lower surface of roof (6) is provided with pushing device (5); the upper surface of the fixing seat (1) is positioned at one side close to the supporting frame (7) and is fixedly provided with a groove-shaped upright post (11) with an opening facing the valve rod support (4), a boss sliding block (8) is connected in a sliding way in the groove of the groove-shaped upright post (11), a through sliding hole (23) is formed in the middle of one side of the boss sliding block (8) close to the valve rod support (4), a sliding supporting rod (9) is connected in a sliding way in one side of the sliding hole (23) close to the clamping ring (27), two mutually symmetrical cutter bars (10) are fixedly arranged at one end of two sides of the sliding supporting rod (9) close to the clamping ring (27), the distance between the two cutter bars (10) is matched with the diameter of the clamping ring (27), an electric pushing rod III (24) connected with the sliding supporting rod (9) is fixedly arranged at one side of the boss sliding block (8) far away from the cutter bars (10), and an electric pushing rod II (12) is fixedly arranged between the lower surface of the boss sliding block (8) and the upper surface of the fixing seat (1).
The pressing device (5) comprises an electric push rod I (55) fixed on the lower surface of the top plate (6), a C-shaped pressing block (54) is fixed at the bottom end of an extension rod of the electric push rod I (55), a supporting ring (56) is rotatably connected to the lower surface of the C-shaped pressing block (54), three Z-shaped supporting rods (52) which are equidistantly distributed and are in a flaring structure are fixed on the lower surface of the supporting ring (56), the same check ring clamping piece (51) is fixed at the bottom ends of the three Z-shaped supporting rods (52), and the shape of the inner ring of the check ring clamping piece (51) is clamped with the shape of the valve rod check ring (25); the outer diameter of the retainer ring clamping piece (51) is smaller than the diameter of the inner ring of the valve rod bracket (4).
2. The assembly fixture for the quick-change valve rod according to claim 1, wherein the clamping device comprises a bearing seat fixed on the inner wall of the bottom of the fixed seat (1), the top of the bearing seat is rotationally connected with a supporting pipe, the top end of the supporting pipe is fixedly provided with a rotating disk (13), three arc-shaped holes (21) which are distributed in a central symmetry manner are formed in the rotating disk (13), a self-locking ratchet wheel (19) is sleeved on the outer circumferential wall of the rotating disk (13), a retaining support rod (22) is arranged on the inner wall of the top of the fixed seat (1) and is positioned close to the edge of the self-locking ratchet wheel (19), and one end of the retaining support rod (22) away from the self-locking ratchet wheel (19) extends out of the side surface of the fixed seat (1); the stop lever (22) is convenient to be manually pressed to help the self-locking ratchet wheel (19) to unlock; the lower surface of the self-locking ratchet wheel (19) is fixedly provided with a concentric driven gear ring (20), a gear motor (18) is fixed below the edge of the inner wall of the bottom of the fixing seat (1) close to the driven gear ring (20), and a driving gear (17) meshed with the driven gear ring (20) is fixed at the top end of an output shaft of the gear motor (18).
3. The assembly fixture for the quick-change valve rod according to claim 2, wherein a round hole is formed in the middle of the upper surface of the fixing seat (1), three guide holes (2) which are distributed in a central symmetry mode with respect to the round hole are formed in the circumferential edge of the round hole, the guide holes (2) are communicated with the round hole, positioning pull rods (16) which are integrally in an L-shaped structure are connected in the three guide holes (2) in a sliding mode, vertical rod portions of the positioning pull rods (16) are inserted into the inner wall of the bottom of the valve rod (3), sliding blocks (15) are fixed on the upper surface of a horizontal rod of each of the three positioning pull rods (16), guide sliding rails (14) which point to the circle center of the round hole are arranged on two sides of each sliding block (15), and round rods inserted into arc-shaped holes (21) are fixed on the lower surface of each positioning pull rod (16).
4. The assembly fixture for the quick-change valve rod according to claim 3, wherein the groove bottom of the groove-shaped upright post (11) and the supporting frame (7) are provided with mutually overlapped strip-shaped sliding holes (26), and a gap is reserved between the inner wall of each strip-shaped sliding hole (26) and the outer wall of the electric push rod III (24).
5. The assembly fixture for the quick-change valve rod according to claim 4, wherein the inner ring of the retainer ring clamping piece (51) is arranged into a hexagonal hole-shaped structure, and the retainer ring clamping piece (51) is a magnetic piece.
6. The assembly fixture for the quick-change valve rod according to claim 5, wherein three anti-slip clamping blocks (53) distributed at equal intervals are fixed on the circumferential outer wall of the C-shaped pressing block (54), and an anti-slip ring matched with the anti-slip clamping blocks (53) is reserved at the circumferential edge of the top of the supporting ring (56), so that the supporting ring (56) can be lifted and rotated on the lower surface of the C-shaped pressing block (54) all the time.
7. The assembly fixture for the quick-change valve rod according to claim 6, wherein the upper surface of the supporting ring (56) is provided with a ball groove concentric with the supporting ring (56), and a plurality of balls are arranged in the ball groove.
8. The assembly fixture for the quick-change valve rod according to claim 7, wherein a plurality of toggle rods (57) distributed equidistantly are fixed on the circumferential outer wall of the supporting ring (56).
9. An assembling process for a quick-change valve rod, which uses the assembling tool for the quick-change valve rod according to claim 8, and is characterized by comprising the following steps:
step one: the integral valve rod (3) of the valve rod (3) to be detached and replaced and the valve rod bracket (4) are fixed on a clamping device above the fixed seat (1); before fixing, ensuring that the vertical rods of the three positioning pull rods (16) are gathered in a middle round hole, sleeving the hole at the bottom of the valve rod (3) on the vertical rods of the three positioning pull rods (16), and then starting the gear motor (18) forward;
step two: under the action of a speed reducing motor (18) and a rotating disc (13), the three positioning pull rods (16) are quickly driven to move around by matching with the arrangement of the round rods, and the relative positions of the valve rod (3) and the positioning pull rods (16) are fixed at the moment;
step three: the extension rod of the first electric push rod (55) in the pressing device is controlled to extend, namely the retainer ring clamping piece (51) slowly clamps the valve rod retainer ring (25), and then the extension rod of the first electric push rod (55) is controlled to extend continuously, so that the valve rod retainer ring (25) can be pressed down to expose the retainer ring (27);
step four: the second electric push rod (12) is started again to adjust the height of the cutter bar (10) to be consistent with the height of the clamping ring (27), and the third electric push rod (24) is started again to push out the cutter bar (10) so as to cut off the clamping ring (27); and then the valve rod check ring (25) and related parts are removed one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210914122.6A CN115042121B (en) | 2022-08-01 | 2022-08-01 | Assembly tool and process for quick-change valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210914122.6A CN115042121B (en) | 2022-08-01 | 2022-08-01 | Assembly tool and process for quick-change valve rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115042121A CN115042121A (en) | 2022-09-13 |
| CN115042121B true CN115042121B (en) | 2023-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210914122.6A Active CN115042121B (en) | 2022-08-01 | 2022-08-01 | Assembly tool and process for quick-change valve rod |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5097580A (en) * | 1990-07-02 | 1992-03-24 | Story Albert J | Apparatus for installing and removing valve stems |
| CN103056826A (en) * | 2012-12-25 | 2013-04-24 | 镇江中船设备有限公司 | diesel engine air valve lock clamp dismounting tool |
| CN108406352A (en) * | 2018-02-08 | 2018-08-17 | 江西久旺汽车配件制造有限公司 | A kind of brake drum anvil hole processing and fixing device and method |
| CN208495833U (en) * | 2018-07-04 | 2019-02-15 | 绍兴市杭亿机械有限公司 | It is a kind of for processing the work piece holder of valve body |
| CN211193737U (en) * | 2019-10-25 | 2020-08-07 | 中广核核电运营有限公司 | Fixing device for valve element assembly |
| CN216618695U (en) * | 2021-09-24 | 2022-05-27 | 上海美科阀门有限公司 | Valve with detachable valve rod |
-
2022
- 2022-08-01 CN CN202210914122.6A patent/CN115042121B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5097580A (en) * | 1990-07-02 | 1992-03-24 | Story Albert J | Apparatus for installing and removing valve stems |
| CN103056826A (en) * | 2012-12-25 | 2013-04-24 | 镇江中船设备有限公司 | diesel engine air valve lock clamp dismounting tool |
| CN108406352A (en) * | 2018-02-08 | 2018-08-17 | 江西久旺汽车配件制造有限公司 | A kind of brake drum anvil hole processing and fixing device and method |
| CN208495833U (en) * | 2018-07-04 | 2019-02-15 | 绍兴市杭亿机械有限公司 | It is a kind of for processing the work piece holder of valve body |
| CN211193737U (en) * | 2019-10-25 | 2020-08-07 | 中广核核电运营有限公司 | Fixing device for valve element assembly |
| CN216618695U (en) * | 2021-09-24 | 2022-05-27 | 上海美科阀门有限公司 | Valve with detachable valve rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115042121A (en) | 2022-09-13 |
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