CN114248158B - Online grinding device for coupling hole for rotor - Google Patents

Online grinding device for coupling hole for rotor Download PDF

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Publication number
CN114248158B
CN114248158B CN202111596337.XA CN202111596337A CN114248158B CN 114248158 B CN114248158 B CN 114248158B CN 202111596337 A CN202111596337 A CN 202111596337A CN 114248158 B CN114248158 B CN 114248158B
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China
Prior art keywords
assembly
grinding
power
pin
fixing seat
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Active
Application number
CN202111596337.XA
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Chinese (zh)
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CN114248158A (en
Inventor
张跃普
徐新燕
刘运智
杨立民
王文冉
刘敬贤
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Hebei Guoyuan Electrical Co ltd
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Hebei Guoyuan Electrical Co ltd
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Priority to CN202111596337.XA priority Critical patent/CN114248158B/en
Publication of CN114248158A publication Critical patent/CN114248158A/en
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    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/06—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally
    • B24B5/10—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally involving a horizontal tool spindle
    • 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
    • B24B37/00—Lapping machines or devices; Accessories
    • B24B37/02—Lapping machines or devices; Accessories designed for working surfaces of revolution
    • 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
    • B24B41/067—Work supports, e.g. adjustable steadies radially supporting 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
    • B24B47/04—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing only
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/35—Accessories
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention relates to an on-line grinding device of a coupling hole for a rotor, which is arranged on a coupling of the rotor to grind a bolt hole, and comprises a fixed seat assembly arranged on the coupling, a grinding head assembly which is arranged in the bolt hole in a penetrating way and can change the diameter, and a power assembly which is connected between the fixed seat assembly and the grinding head assembly and can drive the grinding head assembly to feed and rotate along the length direction of the bolt hole. The grinding device is small in structure, can realize online grinding, and can change diameter conveniently according to use requirements.

Description

Online grinding device for coupling hole for rotor
Technical Field
The invention relates to the technical field of grinding, in particular to an online grinding device for a coupling hole for a rotor.
Background
At present, the grinding or repairing work of holes can be involved in various industries such as power stations, steel, petrifaction and biomass, for example, the following conditions needing grinding or repairing exist in bolt holes of couplings: (1) The modification of the optical axis of the heating low-pressure rotor in winter and the matching of the bolt holes of the original medium-pressure rotor coupler are processed, and the matching of the bolt holes of the low-pressure rotor and the original medium-pressure rotor coupler is processed after the pure-setting state is recovered in summer; (2) Disassembling a rotor coupling and repairing bolt holes during overhaul of a unit; (3) In the on-site modification of the coupler bolts of the unit, related pin type bolts, bamboo joint bolts and the like are modified into hydraulic bolts, and bolt hole reaming needs to be ground and repaired; (4) The novel machine set rotor coupling field connection needs to process the reserved amount of bolt holes, particularly the steam engine ends and the motor ends of different material suppliers, and according to the requirements of the use industry and the use working conditions, the grinding or repairing work of the holes is commonly carried out on a lathe or a boring machine, so that the problems that the equipment is heavy and inconvenient to carry, online operation cannot be realized, the reaming efficiency is low, the debugging is complex, and the novel machine set rotor coupling field connection is not convenient and fast and is suitable for operation with different hole diameters and the like exist.
Disclosure of Invention
In order to solve the problems, the invention provides an online grinding device for a coupling hole for a rotor, which is small in structure, can realize online grinding, can be changed in diameter conveniently according to use requirements, and has a good use effect.
The technical scheme adopted by the invention is as follows: an online grinding device for a coupling hole for a rotor is arranged on a coupling of the rotor so as to grind a bolt hole of the coupling, and comprises a fixed seat assembly arranged on the coupling and a grinding head assembly which is arranged in the bolt hole in a penetrating manner and can be changed in diameter; the grinding head assembly comprises a rack body with a central hole formed inside, a grinding strip assembly movably mounted on the outer surface of the rack body, a mandrel penetrating in the central hole, and a power portion mounted at one end of the mandrel and used for driving the mandrel to move along the axis of the central hole in a reciprocating mode, a plurality of groups of conical surfaces are formed on the outer surface of the mandrel at intervals, the grinding head assembly further comprises a plurality of groups of overhead pins arranged between the grinding strip assembly and the conical surfaces, the mandrel moves in a reciprocating mode and drives the overhead pins to slide along the conical surfaces, and the grinding strip assembly is pushed to rise and fall to change the diameter.
As a further limitation to the above technical solution, the fixing base assembly includes a fixing base body mounted on the coupler in an erected manner, and an optical axis passing through the fixing base body; the fixing seat comprises a fixing seat body and a power assembly, wherein the fixing seat body is provided with a bolt hole, the fixing seat body is provided with a fixing seat hole, the power assembly is connected to the fixing seat hole, the fixing seat body is provided with a bolt hole, the fixing seat body is provided with a fixing seat body, the power assembly is connected to the fixing seat body, the fixing seat body is provided with a fixing seat, the fixing seat body is provided with a fixing hole, the power assembly is connected to the fixing seat body, the fixing seat body is provided with a fixing base body, the fixing base body is provided with a fixing base body, the power assembly is connected to the fixing base body, the fixing base body is provided with a fixing seat, the fixing base body is provided with a bolt hole, the fixing base body is provided with a fixing seat, the power assembly is connected to the fixing plate, the optical axis, the power assembly and the grinding head assembly are enclosed to form a transverse U shape, and the optical axis reciprocates along the length direction of the bolt hole.
As a further limitation to the above technical solution, a longitudinal displacement adjusting assembly is connected between the power assembly and the fixed plate.
As a further limitation to the above technical solution, the longitudinal displacement adjusting assembly includes a movable plate mounted on the fixed plate, and two longitudinal long grooves arranged in parallel and opened on the movable plate, the movable plate is movably connected to the fixed plate via bolts penetrating through the longitudinal long grooves, and the power assembly is mounted on the movable plate.
As a further limitation to the above technical solution, the power assembly includes a power source, and a steering assembly mounted between the power source and the grinding head assembly, the steering assembly includes a first gear shaft in transmission connection with the power source, and a first bevel gear mounted on the first gear shaft; the grinding head comprises a first gear shaft, a second gear shaft and a second bevel gear, wherein the first gear shaft is arranged on the grinding head, the second gear shaft is perpendicular to the first gear shaft, the second bevel gear is mounted on the second gear shaft and is in meshing transmission with the first bevel gear, and the second gear shaft is in transmission connection with the grinding head assembly.
As further injectd to above-mentioned technical scheme, power portion include one end with the tail-end connection of support body spiro union, in the last spout of having seted up of tail-end connection, power portion still including wear to locate in the spout and with the cylindric lock that the dabber is connected to and the cover is located on the cylindric lock and have the nut of outer tooth screw thread, power portion still locates including the cover on the tail-end connection and with the bracelet of the outer tooth screw thread spiro union of nut revolves soon the bracelet, via the nut drives the cylindric lock in slide in the spout, and then drive the dabber is followed the axis reciprocating motion of centre bore.
As a further limitation to the above technical solution, a tail rod assembly is connected between the tail joint and the second gear shaft in a transmission manner.
As the further limitation to the technical scheme, the tail rod component comprises a body and a connector formed at one end of the body, a stepped shaft is formed between the body and the connector, the tail rod component further comprises a pressure spring sleeved on the stepped shaft and a mounting head rotatably sleeved on the connector, and the mounting head is quickly inserted on the tail connector.
As the further limited to above-mentioned technical scheme, in the ring gear has been seted up to the internal surface of bracelet, power portion still including install in thread bush in the tail-end connector, and with the round pin spring that the thread bush is connected, the round pin spring include with the body of thread bush spiro union, and install in this internal spring and round pin head, the round pin head with the setting is put to the ring gear card.
As a further limitation to the above technical solution, the grinding bar assemblies are arranged in a plurality of groups on the outer surface of the frame body at intervals, each grinding bar assembly comprises a base inserted on the frame body and a sand bar fixed on the base, a second positioning pin is arranged on the base at the bottom of the sand bar, and two ends of each base are connected via a positioning ring respectively.
According to the on-line grinding device for the coupling hole for the rotor, the structure is small and exquisite through the arrangement of the fixing base assembly, the grinding head assembly with the variable diameter and the power assembly, the on-line grinding of the coupling hole can be realized, the spindle with the multiple groups of conical surfaces formed on the outer surface at intervals, the power part and the multiple groups of top pins are arranged through the frame body, the grinding strip assembly, the spindle, the power part and the multiple groups of top pins, the power part drives the spindle to reciprocate along the axis of the central hole, the top pins are driven to drive the grinding strip assembly to lift and fall to change the diameter, the structure is simple, the diameter can be changed conveniently according to use requirements, and the use effect is good.
Drawings
FIG. 1 is a front view of an in-line grinding apparatus for a coupling hole for a rotor according to the present invention;
FIG. 2 is a top view of an in-line grinding apparatus for a coupling hole for a rotor according to the present invention;
FIG. 3 isbase:Sub>A sectional view taken along line A-A of FIG. 1;
FIG. 4 is a right side view of an in-line grinding apparatus for a coupling hole for a rotor according to the present invention;
FIG. 5 is a sectional view taken along line B-B of FIG. 4;
FIG. 6 is a schematic view of the assembly of the grinding head assembly and the tail rod assembly;
FIG. 7 is a front view of FIG. 6;
FIG. 8 is a sectional view taken along line C-C of FIG. 7;
FIG. 9 is a right side view of FIG. 7;
FIG. 10 is a cross-sectional view taken along line D-D of FIG. 7;
fig. 11 is a partial enlarged view of fig. 5 at E.
In the figure:
1-a fixed seat assembly, 11-a fixed seat body, 111-a fixed hole, 12-an optical axis, 13-a fixed plate, 14-a handle, 15-a binder, 16-a movable plate, 2-a grinding head assembly, 21-a frame body, 211-a central hole, 22-a grinding bar assembly, 221-a base body, 222-a sand bar, 223-a second positioning pin, 224-a positioning ring, 23-a mandrel, 231-a conical surface, 24-a power part, 241-a tail joint, 2411-a sliding groove, 2412-a first positioning pin, 2413-an L-shaped clamping groove, 242-a cylindrical pin, 243-a nut, 244-a hand ring, 245-a threaded sleeve, 246-a pin spring, 25-an overhead pin, 251-a plane, 252-a bevel surface, 3-a power assembly, 31-a power source, 32-a first gear shaft, 33-a first bevel gear, 34-a second gear shaft, 35-a second bevel gear, 36-a fixed pin, 37-a shell, 37-a fixed pin, 38-a bearing, 39-a spacer sleeve, 310-a stop hole, 311-a pin hole, 312-a transverse pin, 312-a spring, 4-a tail rod assembly, 41-a pin shaft pin, 43-a mounting head body, 44-a mounting head-a short spring, 51-a short spring, and a short spring.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
Examples
As shown in fig. 1 to 5, an online grinding device for a coupling hole of a rotor is mounted on a coupling 5 of the rotor to grind a bolt hole 51 of the coupling 5, and includes a fixing seat assembly 1 mounted on the coupling 5, and a grinding head assembly 2 capable of changing diameter and disposed in the bolt hole 51 in a penetrating manner, and further includes a power assembly 3 connected between the fixing seat assembly 1 and the grinding head assembly 2 and capable of driving the grinding head assembly 2 to feed and rotate along the length direction of the bolt hole 51, and the online grinding device is small in structure and capable of realizing online grinding of the coupling 5 hole through the fixing seat assembly 1, the grinding head assembly 2 capable of changing diameter and the power assembly 3. Of course, the on-line grinding device for rotor coupling holes of the present embodiment can grind not only the bolt holes 51 of the coupling 5 but also other holes in other cases.
As shown in fig. 1 to 5, the fixing base assembly 1 includes a fixing base body 11 mounted on the coupler 5, and an optical axis 12 penetrating through the fixing base body 11, and further includes a fixing plate 13 fixed at a free end of the optical axis 12, specifically, two sets of through holes are provided on the fixing base body 11, in order to avoid rotation of the optical axis 12, the optical axis 12 is parallel arranged and respectively penetrates through two corresponding through holes, the free end of the optical axis 12 is fixed on the fixing plate 13, and it can be ensured that the center distance between the two optical axes 12 is relatively fixed.
As shown in fig. 1 to 4, the fixing base body 11 is mounted on the outer circle of the coupler 5, specifically, the fixing base body 11 is fixed to the coupler 5 through the binding device 15, in this embodiment, fixing holes 111 with rectangular openings are formed in two sides of the fixing base body 11 in an inclined manner, the binding device 15 is a double-groove ratchet binding device, the double-groove ratchet binding device is wound on the outer circle of the coupler 5, and two ends of the double-groove ratchet binding device are respectively fixed to the fixing holes 111, preferably, the bandwidth of the double-groove ratchet binding device is 50mm.
In this embodiment, the power assembly 3 is connected to the fixing plate 13, the optical axis 12, the power assembly 3 and the polishing head assembly 2 form a horizontal U shape, and the optical axis 12 reciprocates along the fixing base body 11 to drive the polishing head assembly 2 to feed along the length direction of the bolt hole 51 via the power assembly 3. As shown in fig. 1 and fig. 4 and fig. 5, for the convenience of adjustment, a longitudinal displacement adjusting assembly is connected between the power assembly 3 and the fixed plate 13, specifically, the longitudinal displacement adjusting assembly includes a movable plate 16 mounted on the fixed plate 13 and two parallel longitudinal slots formed on the movable plate 16, the movable plate 16 is movably connected to the fixed plate 13 via bolts inserted into the longitudinal slots, the power assembly 3 is mounted on the movable plate 16, and specifically, four bolts are inserted into the longitudinal slots two by two.
As shown in fig. 1, 4, and 5 in conjunction with fig. 11, the power assembly 3 includes a power source 31, and a steering assembly installed between the power source 31 and the grinding head assembly 2, the steering assembly includes a first gear shaft 32 connected to the power source 31 in a transmission manner, a first bevel gear 33 installed on the first gear shaft 32, a second gear shaft 34 installed perpendicular to the first gear shaft 32, and a second bevel gear 35 installed on the second gear shaft 34 and engaged with the first bevel gear 33 in a transmission manner, the second gear shaft 34 and the grinding head assembly 2 are connected in a transmission manner via a quad-snap, in this embodiment, the power source 31 is an electric tool using a power source or a pneumatic motor using an air source, an output end of the power source 31 is provided with an external hexagonal joint, an input end of the first gear shaft 32 is provided with an internal hexagonal hole, and an output end of the power source 31 is directly inserted into the internal hexagonal hole of the first gear shaft 32, in order to avoid longitudinal movement of the power source 31, the power source 31 is partially inserted into a housing 36 of the steering assembly, and in order to avoid axial movement of the power source 31, a fixing pin 37 is installed between the power source 31 and the steering assembly.
In this embodiment, in order to radially position the first gear shaft 32 and the second gear shaft 34, bearings 38 are installed between the first gear shaft 32 and the second gear shaft 34 and the housing 36 at corresponding positions, respectively, in order to axially position the first gear shaft 32 and the second gear shaft 34, spacers 39 respectively fitted over the first gear shaft 32 and the second gear shaft 34 are installed between both end surfaces of the housing 36, in order to prevent foreign objects from entering the first bevel gear 33 and the second bevel gear 35, dust-proof seal rings are installed in the corresponding spacers 39, and a hole stopper 310 is installed at an upper portion of the spacer 39 of the first gear shaft 32 to prevent the spacer 39 from axially shifting and the first gear shaft 32 from axially shifting.
As shown in fig. 6 to 8, the grinding head assembly 2 includes a frame body 21 having a central hole 211 therein, a grinding strip assembly 22 movably mounted on an outer surface of the frame body 21, a mandrel 23 penetrating the central hole 211, and a power unit 24 mounted at one end of the mandrel 23 for driving the mandrel 23 to reciprocate along an axis of the central hole 211, a plurality of sets of conical surfaces 231 are formed at intervals on the outer surface of the mandrel 23 along an axial direction of the mandrel 23, the grinding head assembly 2 further includes a plurality of sets of top pins 25 disposed between the grinding strip assembly 22 and the conical surfaces 231, and the reciprocating motion of the mandrel 23 drives the top pins 25 to slide along the conical surfaces 231 at corresponding positions to push the grinding strip assembly 22 to rise and fall for diameter reduction. In this embodiment, to avoid the falling off of the mandrel 23, the plug is installed on the frame body 21.
In this embodiment, the conical surfaces 231 and the overhead pins 25 are four groups, one surface of each overhead pin 25 contacting the grinding strip assembly 22 is a plane 251, one surface contacting the conical surface 231 at the corresponding position is an inclined surface 252, one surface of the plane 251 is used for supporting the grinding strip assembly 22, one surface of the inclined surface 252 is used for matching with the conical surface 231, so as to limit the overhead pin 25 at the corresponding position, and a through hole for inserting the part of the overhead pin 25 at the corresponding position is formed in the frame body 21.
As shown in fig. 7 and fig. 8, the power portion 24 includes a tail joint 241 having one end screwed with the frame body 21, a sliding slot 2411 is formed on the tail joint 241, the power portion 24 further includes a cylindrical pin 242 penetrating through the sliding slot 2411 and connected with the core shaft 23, and a nut 243 sleeved on the cylindrical pin 242 and having an external thread, the power portion 24 further includes a hand ring 244 sleeved on the tail joint 241 and screwed with the external thread of the nut 243, the hand ring 244 is screwed, the cylindrical pin 242 is driven by the nut 243 to slide in the sliding slot 2411, and further the core shaft 23 is driven to reciprocate along an axis of the central hole 211, so as to make the positioning more firm, and a first positioning pin 2412 is installed at a screwed part between the frame body 21 and the tail joint 241.
In this embodiment, a ring gear is disposed on an inner surface of the bracelet 244, the power portion 24 further includes a threaded sleeve 245 installed in the tail connector 241, and a pin spring 246 connected to the threaded sleeve 245, the pin spring 246 includes a compression spring and a pin head, the pin head is clamped with the ring gear, the compression force of the compression spring and the pop-up force of the pin head can be adjusted by adjusting the screwing depth of the threaded sleeve 245, when the bracelet 244 rotates, the pin spring 246 is clamped between teeth of the ring gear, and the positioning and the misoperation of the bracelet 244 can be realized by adjusting the compression force of the compression spring and the pop-up force of the pin head.
In this embodiment, the grinding strip assemblies 22 are a plurality of groups installed at intervals on the outer surface of the frame body 21, each grinding strip assembly 22 includes a base 221 inserted into the frame body 21, and a sand strip 222 fixed on the base 221, a second positioning pin 223 is installed on the base 221 at the bottom of the sand strip 222, two ends of each base 221 are connected via a positioning ring 224, specifically, the grinding strip assemblies 22 are five groups, the frame body 21 is provided with a rectangular groove for the base 221 to insert, the base 221 is also provided with a rectangular groove for the sand strip 222 to fix, specifically, the sand strip 222 is bonded in the rectangular groove, two ends of the second positioning pin 223 extend out of two sides of the base 221 and are clamped with the inner end surface of the frame body 21, so as to avoid axial movement of the base 221, in this embodiment, two ends of each base 221 are provided with hook grooves respectively for the positioning ring 224 to be embedded into and connect two ends of each base 221 separately, specifically, each positioning ring 224 is surrounded by a whole ring compression spring.
In this embodiment, the five groups of sand bars 222 are all diamond sand bars, and in order to realize different grinding roughnesses, the mesh numbers of the sand bars 222 are respectively 80 meshes, 200 meshes and 400 meshes, so that the sand bars can be replaced as required to realize the functions of rough grinding, semi-fine grinding and fine grinding.
In this embodiment, in order to facilitate the quick connection between the power assembly 3 and the polishing head assembly 2 and avoid the unsmooth rotation and jamming of the polishing head assembly 2, a tail rod assembly 4 is connected between the tail joint 241 and the second gear shaft 34 in a transmission manner, as shown in fig. 5 to 10, the tail rod assembly 4 includes a body 41 and a connector 42 formed at one end of the body 41, a stepped shaft is formed between the body 41 and the connector 42, the tail rod assembly 4 further includes a pressure spring 43 sleeved on the stepped shaft and a mounting head 44 rotatably sleeved on the connector 42, and the mounting head 44 is quickly inserted into the tail joint 241.
Specifically, a mounting hole is formed in the polishing head assembly 2, the mounting head 44 is mounted in the mounting hole in a universal rotation manner, an L-shaped slot 2413 communicated with the mounting hole is formed in the polishing head assembly 2 at the mounting hole, a pin 45 capable of being clamped in the L-shaped slot 2413 is mounted on the mounting head 44, a pin hole 46 is formed at the other end of the body 41, and a pin spring assembly connected with the pin hole 46 in a matching manner is mounted on the power assembly 3.
In this embodiment, the outer surfaces of the mounting head 44 and the connecting head 42 are both arranged in a spherical shape, the connecting head 42 is connected with the mounting head 44 via a short pin 47, so that the polishing head assembly 2 can move and rotate along the bolt hole 51 without being clamped by the fixed side of the tail rod assembly 4, a stepped hole is formed in the second gear shaft 34, the pin spring assembly comprises a transverse pin 311, one end of which is mounted in the stepped hole, and the other end of which is matched with the pin hole 46, and a spring 312, which can enable the transverse pin 311 to slide in and out of the pin hole 46 in an overhead manner.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any technical solutions that are equivalent or changed according to the technical idea of the present invention by those skilled in the art within the technical scope of the present invention are also covered by the present invention.

Claims (2)

1. The utility model provides an online grinder in shaft coupling hole for rotor installs on the shaft coupling of rotor, in order to right the bolt hole of shaft coupling grinds its characterized in that:
the grinding head comprises a fixed seat assembly arranged on the coupler and a grinding head assembly which is arranged in the bolt hole in a penetrating mode and can change diameters; the power assembly is connected between the fixing seat assembly and the grinding head assembly and can drive the grinding head assembly to feed and rotate along the length direction of the bolt hole;
the grinding head assembly comprises a frame body with a central hole formed inside, a grinding strip assembly movably mounted on the outer surface of the frame body, a mandrel penetrating the central hole, and a power part mounted at one end of the mandrel and used for driving the mandrel to reciprocate along the axis of the central hole, wherein multiple groups of conical surfaces are formed on the outer surface of the mandrel at intervals along the axis direction of the mandrel;
the fixing seat assembly comprises a fixing seat body and an optical axis, wherein the fixing seat body is erected on an outer circle of the coupler, and the optical axis penetrates through the fixing seat body; the fixing seat body is fixed with a coupler through a binding device, the power assembly is connected to the fixing plate, the optical shaft, the power assembly and the grinding head assembly are enclosed to form a transverse U shape, the optical shaft reciprocates along the fixing seat body and drives the grinding head assembly to feed along the length direction of the bolt hole through the power assembly;
a longitudinal displacement adjusting assembly is connected between the power assembly and the fixed plate, the longitudinal displacement adjusting assembly comprises a movable plate mounted on the fixed plate and two longitudinal long grooves arranged in parallel and arranged on the movable plate, the movable plate is movably connected to the fixed plate through bolts penetrating through the longitudinal long grooves, and the power assembly is mounted on the movable plate;
the power assembly comprises a power source and a steering assembly arranged between the power source and the grinding head assembly, and the steering assembly comprises a first gear shaft in transmission connection with the power source and a first bevel gear arranged on the first gear shaft; the power part comprises a tail joint with one end connected with the rack body in a threaded manner, a chute is formed in the tail joint, the power part further comprises a cylindrical pin penetrating through the chute and connected with the core shaft and a nut sleeved on the cylindrical pin and provided with an outer thread, the power part further comprises a hand ring sleeved on the tail joint and connected with the outer thread of the nut in a screwing manner, the hand ring drives the cylindrical pin to slide in the chute through the nut, so as to drive the core shaft to reciprocate along the axis of the central hole, a gear ring is formed on the inner surface of the hand ring, the power part further comprises a threaded sleeve installed in the tail joint and a pin spring connected with the threaded sleeve, the pin spring comprises a body in threaded connection with the threaded sleeve, a spring and a pin head installed in the body, and the pin head and the gear ring are clamped;
the tail rod component comprises a body and a connector formed at one end of the body, a stepped shaft is formed between the body and the connector, the tail rod component further comprises a pressure spring sleeved on the stepped shaft and a mounting head rotatably sleeved on the connector, and the mounting head is quickly inserted on the tail joint.
2. The on-line grinding device for the coupling hole of the rotor as claimed in claim 1, wherein: the grinding strip assemblies are arranged on multiple groups of the outer surface of the frame body at intervals, each grinding strip assembly comprises a base body and a sand strip, the base body is inserted into the frame body, the sand strip is fixed on the base body, a second positioning pin is arranged on the base body at the bottom of the sand strip, and two ends of each base body are connected through positioning rings respectively.
CN202111596337.XA 2021-12-24 2021-12-24 Online grinding device for coupling hole for rotor Active CN114248158B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111596337.XA CN114248158B (en) 2021-12-24 2021-12-24 Online grinding device for coupling hole for rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111596337.XA CN114248158B (en) 2021-12-24 2021-12-24 Online grinding device for coupling hole for rotor

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CN114248158A CN114248158A (en) 2022-03-29
CN114248158B true CN114248158B (en) 2023-01-17

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06339855A (en) * 1993-05-31 1994-12-13 Speedfam Co Ltd Surface polishing device having sun gear raising and lowering mechanism
CN207824655U (en) * 2018-01-10 2018-09-07 广州市海乐精密机械有限责任公司 Cycloidal Wheel dead axle honing head
CN212265510U (en) * 2020-03-18 2021-01-01 郑乐辉 Valve online maintenance device
CN213054109U (en) * 2020-09-14 2021-04-27 华能武汉发电有限责任公司 Portable high-low side valve grinding machine
CN214351673U (en) * 2021-02-02 2021-10-08 重庆羿新机械有限公司 Honing device for multiple connecting rods of motorcycle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06339855A (en) * 1993-05-31 1994-12-13 Speedfam Co Ltd Surface polishing device having sun gear raising and lowering mechanism
CN207824655U (en) * 2018-01-10 2018-09-07 广州市海乐精密机械有限责任公司 Cycloidal Wheel dead axle honing head
CN212265510U (en) * 2020-03-18 2021-01-01 郑乐辉 Valve online maintenance device
CN213054109U (en) * 2020-09-14 2021-04-27 华能武汉发电有限责任公司 Portable high-low side valve grinding machine
CN214351673U (en) * 2021-02-02 2021-10-08 重庆羿新机械有限公司 Honing device for multiple connecting rods of motorcycle

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