CN117052872A - Grinding head structure of grinding machine - Google Patents
Grinding head structure of grinding machine Download PDFInfo
- Publication number
- CN117052872A CN117052872A CN202311108400.XA CN202311108400A CN117052872A CN 117052872 A CN117052872 A CN 117052872A CN 202311108400 A CN202311108400 A CN 202311108400A CN 117052872 A CN117052872 A CN 117052872A
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- Prior art keywords
- transmission
- gear
- output
- reduction gearbox
- grinding
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- 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
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- 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
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/047—Grinding heads for working on plane surfaces
-
- 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
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
- B24B7/186—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like with disc-type tools
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/03—Gearboxes; Mounting gearing therein characterised by means for reinforcing gearboxes, e.g. ribs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to a grinding head structure of a grinding machine, which comprises a reduction gearbox, wherein output shaft sleeves with lower ends extending out of the reduction gearbox are vertically arranged on two sides of the reduction gearbox respectively, the lower ends of the output shaft sleeves are connected with transmission gear boxes, four output transmission shafts with lower ends penetrating out of the transmission gear boxes and used for mounting grinding discs are uniformly distributed on the periphery of the transmission gear boxes, and the output transmission shafts on the same transmission gear box rotate in the same direction; the reduction gearbox is provided with a driving shaft driven by a first motor, and the driving shaft drives the output shaft sleeve to rotate through a first gear pair respectively; the two sides of the reduction gearbox are respectively provided with a second motor, the second motors are connected with an input transmission shaft arranged at the center of the transmission gearbox through transmission connecting sleeves penetrating into the output shaft sleeve, and the input transmission shaft synchronously drives the output transmission shaft to synchronously rotate through a second gear pair. The grinding head of the grinder has compact structure, is beneficial to adjusting the grinding load and improves the grinding efficiency.
Description
Technical Field
The invention relates to a grinding head structure of a grinder.
Background
Floor grinders are known and are used to polish or grind floor surfaces, with the aim of producing a flat and/or glossy floor surface, or with the aim of refreshing such surfaces that are deteriorated or have been damaged by, for example, wear.
The existing grinding machine has the following defects:
firstly, the reduction gearbox of the floor grinding machine is connected with the transmission gearbox through the output shaft sleeve, and the upper part and the lower part of the output shaft sleeve are usually provided with a deep groove ball bearing to realize the rotary connection with the reduction gearbox, so that the output shaft sleeve can bear the axial thrust from the transmission gearbox in the use process of the floor grinding machine, and the damage speed of the deep groove ball bearing is easily aggravated.
Secondly, the transmission gear box in the existing grinding machine usually adopts an upper layer and a lower layer of gear structure, for example, patent CN210859750U, and a planetary gear layer is further arranged on the upper side of the transmission gear layer and is lubricated by pumping oil; and the running direction of the output shaft in the transmission gear layer generally adopts a running mode of two forward rotations and two reverse rotations, so that the number of gears is further increased. On one hand, the fault rate of the gear box is increased intangibly due to the fact that the gears are more; on the other hand, the two-forward and two-reverse running modes are also unfavorable for improving the grinding efficiency. Moreover, the existing grinding wing plate adopts double-motor input, which is not beneficial to controlling the load of the grinding machine.
Meanwhile, the key groove of the input shaft of the transmission gear box is easy to damage, and after the key groove is damaged, the input shaft needs to be replaced, so that the key groove is troublesome to maintain and is unfavorable for prolonging the service life.
In addition, the water pipe used for connecting the spray header in the gear box cover of the existing grinding machine is fixed on the inner wall of the gear box cover through viscose. After the service time is long, or when the grinding working condition is poor, the water pipe is easy to fall off from the inner wall of the gear box cover, and the normal use of the grinding machine is affected.
Disclosure of Invention
The invention aims to provide a grinding head structure of a grinding machine, which is compact in structure, is beneficial to adjusting the grinding load and improves the grinding efficiency.
The technical scheme of the invention is as follows: the grinding head structure of the grinding machine comprises a reduction gearbox, wherein output shaft sleeves with lower ends extending out of the reduction gearbox are vertically arranged on two sides of the reduction gearbox respectively, the lower ends of the output shaft sleeves are connected with transmission gear boxes, four output transmission shafts with lower ends penetrating out of the transmission gear boxes and used for mounting grinding discs are uniformly distributed on the periphery of the transmission gear boxes, and the output transmission shafts on the same transmission gear box rotate in the same direction; the reduction gearbox is provided with a driving shaft driven by a first motor, and the driving shaft drives the output shaft sleeve to rotate through a first gear pair respectively; the two sides of the reduction gearbox are respectively provided with a second motor, the second motors are connected with an input transmission shaft arranged at the center of the transmission gearbox through transmission connecting sleeves penetrating into the output shaft sleeve, and the input transmission shaft synchronously drives the output transmission shaft to synchronously rotate through a second gear pair.
Further, the upper part of the output shaft sleeve penetrates through the top plate of the reduction gearbox and is rotationally connected with the top plate of the reduction gearbox through a thrust ball bearing and a deep groove ball bearing, and the lower part of the output shaft sleeve is rotationally connected with the bottom plate of the reduction gearbox through the deep groove ball bearing.
Further, the first gear pair comprises a driving gear arranged on the driving shaft, the middle parts of the output shaft sleeves are all fixed with driven gears, the driving gear is meshed with the driven gears on the output shaft sleeves positioned on one side through a first transition gear, and the driving gear is meshed with the driven gears on the output shaft sleeves positioned on the other side through a first transition gear and a second transition gear.
Further, the lower extreme of output axle sleeve is installed the connection pad, the fixed disk is installed to the lower extreme of connection pad, the week portion of fixed disk is provided with the location through-hole along the circumferencial direction interval, the roof upper surface of the drive gear box of output transmission shaft place all is provided with location through-hole matched with location convex part.
Further, the first motor is arranged in the middle of the front side of the reduction gearbox, the first motor is connected with the driving shaft through the first speed reducer, and the second motor is connected with the transmission connecting sleeve through the second speed reducer.
Further, key grooves are respectively formed in two sides of the end portion, penetrating out of the transmission gearbox, of the input transmission shaft.
Further, the upper part of the input transmission shaft is rotationally connected with a top plate of the transmission gear box through a deep groove ball bearing, and the lower part of the input transmission shaft is rotationally connected with a bottom plate of the transmission gear box through a tapered roller bearing and a deep groove ball bearing; the upper part of the output transmission shaft is rotationally connected with the top plate of the transmission gear box through a tapered roller bearing and a deep groove ball bearing, and the lower part of the output transmission shaft is rotationally connected with the bottom plate of the transmission gear box through a deep groove ball bearing.
Further, the second gear pair comprises an input gear fixed on the input transmission shaft, two sides of the input gear are respectively meshed with an intermediate gear, and front and rear sides of the intermediate gear are respectively meshed with an output gear fixed on the corresponding output transmission shaft.
Further, an oil filling port is arranged on a top plate of the transmission gear box, and an oil filling plug is arranged on the top plate; an oil drain port is arranged on a bottom plate of the transmission gear box, and an oil drain plug with a magnet is arranged on the oil drain port.
Further, a gear box cover is arranged on the outer sides of the reduction gearbox and the transmission gear box, through holes for penetrating water pipes are formed in the side wall of the upper portion of the rear side of the gear box cover, and water pipe fixing rings are fixed on the inner wall of the upper portion of the gear box cover at intervals along the circumferential direction of the inner wall; the dust suction pipe assembly is installed on the rear side of the top plate of the gear box cover, and penetrates into the gear box cover.
Compared with the prior art, the invention has the following advantages:
1. the reduction gearbox of the grinding machine is provided with the thrust ball bearing on the output shaft sleeve to be matched with the deep groove ball bearing, so that the axial stress of the output shaft sleeve is improved.
2. The mill is driven by three motors to help adjust the load of the mill. And a positioning through hole is formed in the fixed disc, so that the fixed disc is convenient to position and assemble when matched with the transmission gear boxes, and the included angle of the grinding disc between the two transmission gear boxes is conveniently adjusted.
3. The transmission gear box of the grinding machine is beneficial to improving the grinding efficiency by rotating the four output transmission shafts in the same direction. By eliminating the planet layer gears and the four output transmission shafts rotating in the same direction, the number of gears is reduced, and the failure rate is effectively reduced.
4. The input transmission shaft of the transmission gear box of the grinder adopts a double-key-groove structure, so that after one key groove is damaged, the other key groove is replaced, the replacement of the input transmission shaft is reduced, and the service life is prolonged.
5. The gearbox housing of the grinding machine helps to secure the water pipe and prevent the water pipe from falling out of the gearbox housing. In addition, the strength of the gear box cover is improved by arranging the reinforcing rib plate in the gear box cover.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a bottom view of the present invention;
FIG. 3 is a schematic view of the structure of the present invention with the gear case cover removed;
FIG. 4 is a cross-sectional view of the reduction gearbox of the present invention;
FIG. 5 is a schematic view of a first gear pair of the present invention;
FIG. 6 is an enlarged view of the output sleeve and bearing of the present invention mated;
FIG. 7 is a schematic view of the transmission gear box structure of the present invention;
FIG. 8 is a schematic view of the transmission gear box of the present invention with the top plate removed;
FIG. 9 is a cross-sectional view of the transmission gearbox of the present invention;
FIG. 10 is an enlarged partial view of the transmission gearbox of the present invention;
FIG. 11 is a partial enlarged view of a transmission gearbox of the present invention;
FIG. 12 is a schematic view of the gear case cover structure of the present invention;
FIG. 13 is a cross-sectional view of the gear case cover of the present invention;
in the figure: 100-a reduction gearbox 120-an output shaft sleeve 121-a thrust ball bearing 122-a deep groove ball bearing 123-a deep groove ball bearing 124-an upper bearing seat 125-a lower bearing seat 126-a driven gear 130-a driving shaft 131-a driving gear 132-a first transition gear 133-a second transition gear 140-a connecting disc 150-a fixed disc 151-a positioning through hole 160-a first motor 161-a first speed reducer 170-a second motor 171-a second speed reducer 180-a connecting sleeve;
200-a transmission gear box 211-a positioning convex part 212-an oiling plug 213-an oil drain plug 214-a supporting column 215-a threaded hole 220-an input transmission shaft 221-a key groove 222-a deep groove ball bearing 223-a tapered roller bearing 224-a deep groove ball bearing 225-an input gear 226-an intermediate gear 230-an output transmission shaft 231-a tapered roller bearing 232-a deep groove ball bearing 233-a deep groove ball bearing 234-an output gear 240-a top bearing seat 250-a bottom bearing seat 260-a millstone;
300-a gear box cover 311-a mounting hole 312-a fixing ring 313-a reinforcing rib plate 314-a motor mounting hole 315-a fixing plate 316-a lifting lug frame 317-a lamp bracket 320-a dust absorption pipe assembly 330-a dust cover.
Detailed Description
In order to make the above features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Referring to fig. 1 to 13
The grinding head structure of the grinder comprises a reduction gearbox 100, wherein output shaft sleeves 120 with lower ends extending out of the reduction gearbox are vertically arranged on two sides of the reduction gearbox respectively, the lower ends of the output shaft sleeves are connected with a transmission gear box 200, four output transmission shafts 230 with lower ends penetrating out of the transmission gear box and used for mounting grinding discs 260 are uniformly distributed on the periphery of the transmission gear box, and the output transmission shafts on the same transmission gear box rotate in the same direction, so that the grinding efficiency is improved; the reduction gearbox is provided with a driving shaft 130 driven by a first motor 160, the driving shaft drives the output shaft sleeves to rotate respectively through a first gear pair, and the rotation directions of the two output shaft sleeves are opposite; the two sides of the reduction gearbox are respectively provided with a second motor 170, the second motor is connected with an input transmission shaft 220 arranged at the center of the transmission gearbox through a transmission connecting sleeve 180 penetrating into the output shaft sleeve, the input transmission shaft is in rotary connection with the output shaft sleeve and matched with the output shaft sleeve, and the input transmission shaft drives the synchronous driving output transmission shaft to synchronously rotate through a second gear pair. The use of three motors facilitates adjustment of the mill load by counter-rotation.
In this embodiment, in order to ensure the axial stress of the output shaft sleeve, the upper portion of the output shaft sleeve passes through the top plate of the reduction gearbox, and is rotationally connected with the top plate of the reduction gearbox through the thrust ball bearing 121 and the deep groove ball bearing 122, and the lower portion of the output shaft sleeve is rotationally connected with the bottom plate of the reduction gearbox through the deep groove ball bearing 123. Specifically, the thrust ball bearing 121 is below the upper and deep groove ball bearings 122.
In this embodiment, in order to better mount each bearing, an upper bearing seat 124 for mounting a thrust ball bearing 121 and a deep groove ball bearing 122 is fixed to the top plate of the reduction gearbox, and a lower bearing seat 125 for mounting a deep groove ball bearing 123 is fixed to the bottom plate of the reduction gearbox.
In this embodiment, in order to drive the output shaft sleeve to rotate, the first gear pair includes a driving gear 131 disposed on the driving shaft, the driven gears 126 are fixed in the middle of the output shaft sleeve, the driving gear is meshed with the driven gear on the output shaft sleeve on one side via a first transition gear 132, and the driving gear is meshed with the driven gear on the output shaft sleeve on the other side via a first transition gear 132 and a second transition gear 133. So that the rotation directions of the two output shaft sleeves are opposite.
In this embodiment, the driving shaft is disposed in the middle of the front side of the reduction gearbox, and the driving shaft and the driving gear form a gear shaft. The driving gear 131, the driven gear 126, the first transition gear 132, and the second transition gear 133 may all be spur gears.
In this embodiment, in order to be connected with the drive gear box of the grinding machine, drive the drive gear box to rotate, the connection pad 140 is installed to the lower extreme of output axle sleeve, the fixed disk 150 is installed to the lower extreme of connection pad, the circumference of fixed disk is provided with location through-hole 151 along the circumferencial direction interval, the roof upper surface of the drive gear box of the position of output transmission shaft all is provided with the location convex part 211 with location through-hole matched with. Therefore, the positioning through hole is matched with the positioning convex part to finish the installation and positioning of the transmission gear box, thereby being convenient for positioning and assembly and adjusting the angle of the transmission gear box.
In another embodiment, the first motor is disposed in the middle of the front side of the reduction gearbox, the first motor is connected with the driving shaft through the first reducer 161, and the second motor is connected with the transmission connection sleeve through the second reducer 171.
In this embodiment, in order to ensure the load, the first motor and the second motor are permanent magnet motors respectively.
In this embodiment, an oil filling hole is installed on a top plate of the reduction gearbox, and a plug is screwed on the top plate.
In this embodiment, two sides of the end portion of the input transmission shaft penetrating out of the transmission gearbox are respectively provided with a key groove 221, so that after one key groove is damaged, the other key groove is replaced for connection.
In this embodiment, in order to improve the axial stress of the input transmission shaft, the upper part of the input transmission shaft is rotationally connected with the top plate of the transmission gearbox through a deep groove ball bearing 222, and the lower part of the input transmission shaft is rotationally connected with the bottom plate of the transmission gearbox through a tapered roller bearing 223 and a deep groove ball bearing 224; specifically, the tapered roller bearing 23 is on the upper side of the deep groove ball bearing 24.
In this embodiment, in order to improve the axial stress of the output transmission shaft, the upper portion of the output transmission shaft is rotationally connected with the top plate of the transmission gearbox through the tapered roller bearing 231 and the deep groove ball bearing 232, and the lower portion of the output transmission shaft is rotationally connected with the bottom plate of the transmission gearbox through the deep groove ball bearing 233. Specifically, the tapered roller bearing 231 is on the lower side of the deep groove ball bearing 232, and the deep groove ball bearing 233 is a double groove deep groove ball bearing.
In this embodiment, a top bearing seat 240 for installing a tapered roller bearing 231 and a deep groove ball bearing 232 is disposed in a top plate of the transmission gear box where the output transmission shaft is located, and an upper portion of the top bearing seat penetrates out of the top plate of the transmission gear box to form a positioning protrusion 211, and the top bearing seat is fixed on the top plate of the gear box through bolts. The bottom plate of the transmission gear box where the output transmission shaft is located is provided with a bottom bearing seat 250 for the deep groove ball bearing 233.
In this embodiment, in order to better realize the co-rotation of the four output transmission shafts, reduce the number of gears and reduce the failure rate, the second gear pair includes an input gear 225 fixed on the input transmission shaft, two sides of the input gear are respectively meshed with an intermediate gear 226, and front and rear sides of the intermediate gear are respectively meshed with an output gear 234 fixed on the corresponding output transmission shaft. Thereby reducing the number of gears and simultaneously enabling the four output transmission shafts to rotate in the same direction.
In this embodiment, the input gear, the intermediate gear and the output gear are all helical gears. The input gear and the input transmission shaft form a gear shaft.
In this embodiment, in order to facilitate the replacement of the lubricating oil, an oil filling port is provided on the top plate of the transmission gearbox and an oil filling plug 212 is installed; an oil drain port is arranged on the bottom plate of the transmission gear box, and an oil drain plug 213 with a magnet is arranged on the oil drain port so as to adsorb metal scraps in oil through the magnet.
In this embodiment, in order to improve the strength of the gear box, the gear box body is reinforced, a plurality of support columns 214 are fixed on the bottom plate of the inner cavity of the transmission gear box, and threaded holes 215 for connecting with the top plate of the transmission gear box through bolts are formed at the upper ends of the support columns, so that the connection strength of the top plate of the gear box body and the gear box body is improved.
In the embodiment, four millstones on one transmission gear box are arranged in the positive direction, and four millstones on the other transmission gear box are arranged in the positive direction inclined by 45 degrees, so that the millstones on the two transmission gear boxes are staggered, and interference during rotation is avoided. See fig. 2.
In this embodiment, in order to facilitate the grinding process of the grinder from dust generation, a gear box cover 300 is provided outside the reduction box and the transmission gear box. In order to reduce dust in the gear box cover, the upper side wall of the rear side of the gear box cover is provided with through holes 311 for penetrating water pipes, and the upper inner wall of the gear box cover is fixedly provided with water pipe fixing rings 312 at intervals along the circumferential direction of the inner wall so as to enable the water pipes to penetrate through the fixing rings, fix the water pipes and prevent the water pipes from falling off the gear box cover in the grinding process.
In this embodiment, in order to facilitate the connection with the dust collection device to suck out the generated dust, the dust collection tube assembly 320 is mounted on the rear side of the top plate of the gear box cover, and the dust collection tube assembly penetrates into the gear box cover so as to cooperate with the dust collection device to collect the dust in the gear box cover.
In this embodiment, in order to better improve the strength of the gear box cover, two circles of reinforcing rib plates 313 are arranged on the inner wall of the gear box cover from top to bottom at intervals, and the reinforcing rib plates protrude inwards to the inner wall of the gear box cover.
In this embodiment, the top plate of the gear box cover is provided with a motor mounting hole 314, so that the first motor and the second motor pass through. In order to better fix the gear case cover, a fixing plate 315 is installed at the lower side of the top plate of the gear case cover, and a lifting lug frame 316 penetrated from the top plate of the gear case cover is respectively fixed at both sides of the fixing plate, thereby being connected with the grinder through the lifting lug frame.
In this embodiment, in order to install the illumination lamp on the gear case cover, a lamp holder 317 is installed at the top front portion of the gear case cover so as to install the illumination lamp on the lamp holder.
In this embodiment, in order to improve the dust-proof effect of the gear case cover, the lower portion of the gear case cover is sleeved with a dust cover 330, the dust cover is sleeved outside the gear case cover, and the dust cover is made of a rubber material.
The foregoing is only illustrative of the present invention, and it will be appreciated by those skilled in the art that, based upon the teachings herein, changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of the invention and its intended scope as defined by the appended claims.
Claims (10)
1. The grinding head structure of the grinding machine comprises a reduction gearbox and is characterized in that output shaft sleeves with lower ends extending out of the reduction gearbox are vertically arranged on two sides of the reduction gearbox respectively, the lower ends of the output shaft sleeves are connected with transmission gear boxes, four output transmission shafts with lower ends penetrating out of the transmission gear boxes and used for mounting grinding discs are uniformly distributed on the periphery of the transmission gear boxes, and the output transmission shafts on the same transmission gear box rotate in the same direction; the reduction gearbox is provided with a driving shaft driven by a first motor, and the driving shaft drives the output shaft sleeve to rotate through a first gear pair respectively; the two sides of the reduction gearbox are respectively provided with a second motor, the second motors are connected with an input transmission shaft arranged at the center of the transmission gearbox through transmission connecting sleeves penetrating into the output shaft sleeve, and the input transmission shaft synchronously drives the output transmission shaft to synchronously rotate through a second gear pair.
2. The grinding bit structure of claim 1, wherein the upper portion of the output shaft sleeve passes through the top plate of the reduction gearbox and is rotatably connected with the top plate of the reduction gearbox through a thrust ball bearing and a deep groove ball bearing, and the lower portion of the output shaft sleeve is rotatably connected with the bottom plate of the reduction gearbox through a deep groove ball bearing.
3. The grinding bit structure of a grinding machine according to claim 1 or 2, wherein the first gear pair comprises a driving gear arranged on the driving shaft, the driven gears are fixed in the middle of the output shaft sleeve, the driving gear is meshed with the driven gears on the output shaft sleeve on one side through a first transition gear, and the driving gear is meshed with the driven gears on the output shaft sleeve on the other side through the first transition gear and a second transition gear.
4. The grinding head structure of a grinder according to claim 1, wherein the lower end of the output shaft sleeve is provided with a connecting disc, the lower end of the connecting disc is provided with a fixed disc, the periphery of the fixed disc is provided with positioning through holes at intervals along the circumferential direction, and the upper surface of a top plate of the transmission gear box where the output transmission shaft is located is provided with positioning convex parts matched with the positioning through holes.
5. The grinding bit structure of claim 1, 2 or 4, wherein the first motor is disposed at a front middle portion of the reduction gearbox, the first motor is connected to the driving shaft via a first reduction gear, and the second motor is connected to the transmission connection sleeve via a second reduction gear.
6. The grinder bit structure according to claim 1, wherein two sides of an end portion of the input transmission shaft penetrating the transmission gear case are respectively provided with a key groove.
7. The grinding bit structure of claim 1, 2, 4 or 6, wherein the upper part of the input transmission shaft is rotatably connected with the top plate of the transmission gear box through a deep groove ball bearing, and the lower part of the input transmission shaft is rotatably connected with the bottom plate of the transmission gear box through a tapered roller bearing and a deep groove ball bearing; the upper part of the output transmission shaft is rotationally connected with the top plate of the transmission gear box through a tapered roller bearing and a deep groove ball bearing, and the lower part of the output transmission shaft is rotationally connected with the bottom plate of the transmission gear box through a deep groove ball bearing.
8. The grinding bit structure of claim 1, wherein the second gear pair includes an input gear fixed to the input transmission shaft, two sides of the input gear are respectively engaged with an intermediate gear, and front and rear sides of the intermediate gear are respectively engaged with output gears fixed to the corresponding output transmission shafts.
9. The grinding bit structure of a grinding machine according to claim 1 or 8, wherein an oil filling port is arranged on a top plate of the transmission gear box and an oil filling plug is arranged on the top plate; an oil drain port is arranged on a bottom plate of the transmission gear box, and an oil drain plug with a magnet is arranged on the oil drain port.
10. The grinding bit structure of a grinder according to claim 1, wherein a gear case cover is provided at an outer side of the reduction gearbox and the transmission gear case, a through hole for penetration of a water pipe is provided at an upper side wall of a rear side of the gear case cover, and water pipe fixing rings are fixed to an upper inner wall of the gear case cover at intervals along a circumferential direction of the inner wall; the dust suction pipe assembly is installed on the rear side of the top plate of the gear box cover, and penetrates into the gear box cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311108400.XA CN117052872A (en) | 2023-08-31 | 2023-08-31 | Grinding head structure of grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311108400.XA CN117052872A (en) | 2023-08-31 | 2023-08-31 | Grinding head structure of grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117052872A true CN117052872A (en) | 2023-11-14 |
Family
ID=88660792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311108400.XA Pending CN117052872A (en) | 2023-08-31 | 2023-08-31 | Grinding head structure of grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117052872A (en) |
-
2023
- 2023-08-31 CN CN202311108400.XA patent/CN117052872A/en active Pending
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