Transmission device of upper grinding disc of grinding machine
By designing a transmission device on the grinding machine and utilizing a combination structure of bearings and bearing covers, the problem of motor spindle deflection and shaking caused by the large upper grinding disc mechanism was solved, achieving stable rotation of the upper grinding disc mechanism and ensuring the normal operation of the grinding machine.
Patent Information
- Application Number
- CN202423116332.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-17
AI Technical Summary
When the large and heavy upper grinding disc mechanism is suspended on the motor spindle, it can easily cause the motor spindle to deflect and shake, affecting the normal operation of the grinding machine.
A transmission device for a grinding disc on a grinding machine is designed, including a main shaft, a driven wheel, a transmission seat, and bearings. By setting the bearings between the main shaft and the transmission seat, and setting bearing covers at both ends of the transmission seat for sealing, impurities are prevented from entering, ensuring the stable rotation of the main shaft.
It effectively prevents the spindle from deflecting and shaking, ensures the stable rotation of the upper grinding disc mechanism, and guarantees the normal operation of the grinding machine.
Smart Images
Figure CN223719249U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a transmission device, concretely relates to a transmission device of grinding disc on grinder. BACKGROUND
[0002] The grinder is a kind of commonly used grinding and polishing mechanical equipment, is widely used in the surface treatment process of metal, glass, ceramic and other materials.The polishing disc or polishing cloth for grinding and polishing is arranged on the workbench of the grinder, so that the polishing disc or polishing cloth reciprocatingly rubs on the surface of product, thereby removing the scratch and flaw on the surface of product, and also improving the smoothness and flatness of the surface of product.
[0003] The upper grinding disc mechanism of general grinder is suspended on the motor-driven main shaft, is rotated by the motor-driven main shaft, and grinds and polishes the surface of metal, ceramic, glass and other products.But for some large volume, heavy upper grinding disc mechanism suspended on the motor main shaft, in the working process, the main shaft of motor is prone to deflection, shaking, even damages the motor, seriously affects the normal operation of grinder. UTILITY MODEL CONTENTS
[0004] The technical problem to be solved by the utility model is: how to drive large volume, heavy upper grinding disc mechanism to grind product without causing the deflection and shaking of the main shaft of motor, and ensure the normal operation of grinding work.
[0005] In view of the above problems, the technical scheme provided by the utility model is: a transmission device of grinding disc on grinder, including main shaft, driven wheel, transmission seat and bearing, the top of the main shaft is fixedly connected with the driven wheel, and the outer side of the driven wheel is provided with an annular groove recessed inwardly;The main shaft includes shaft body and shaft seat, the shaft seat is integrally formed at the lower end of the shaft body, the bearing is sleeved on the shaft body of the main shaft, and the transmission seat is sleeved on the bearing.
[0006] Preferably, the transmission seat includes seat body, seat along and limiting ring, the seat body is circular tubular, the seat along is integrally formed on the outer side of the seat body, and the limiting ring is integrally formed on the inner side of the seat body.
[0007] Preferably, the bearing includes upper bearing and lower bearing, the upper bearing includes upper inner ring and upper outer ring, both the upper inner ring and the upper outer ring are circular ring, and the height of the upper inner ring is greater than the height of the upper outer ring;The lower bearing includes lower inner ring and lower outer ring, both the lower inner ring and the lower outer ring are circular ring, and the height of the lower inner ring is greater than the height of the lower outer ring.
[0008] Preferably, the upper inner ring of the upper bearing and the lower inner ring of the lower bearing are connected with the main shaft in interference fit, the upper outer ring of the upper bearing and the lower outer ring of the lower bearing are connected with the seat body of the transmission seat in interference fit;And the bottom of the upper outer ring is in abutment with the top of the limiting ring of the transmission seat, and the top of the lower outer ring is in abutment with the bottom of the limiting ring of the transmission seat.
[0009] Preferably, the bearing cover comprises an upper bearing cover and a lower bearing cover, the upper bearing cover comprises an upper cover body and an upper cover edge, the upper cover edge is integrally formed on the outer side of the lower end of the upper cover body, and the upper cover edge is provided with a through mounting hole; the lower bearing cover comprises a lower cover body and a lower cover edge, the lower cover edge is integrally formed on the outer side of the upper end of the lower cover body, and the lower cover edge is provided with a through mounting hole.
[0010] Preferably, the upper cover body of the upper bearing cover is sleeved on the upper inner ring of the upper bearing, the upper cover edge of the upper bearing cover is fixedly connected with the top of the seat body of the transmission seat; the lower cover body of the lower bearing cover is sleeved on the lower inner ring of the lower bearing, and the lower cover edge of the lower bearing cover is fixedly connected with the bottom of the seat body of the transmission seat.
[0011] Preferably, the top and the bottom of the seat body of the transmission seat are respectively provided with mounting holes corresponding to the mounting holes of the upper cover edge and the lower cover edge, the upper bearing cover is sleeved on the upper end of the main shaft, bolts pass through the mounting holes of the upper cover edge and the top of the seat body of the transmission seat, and the upper bearing cover is fixedly connected with the top of the transmission seat; the lower bearing cover is sleeved on the lower end of the main shaft, bolts pass through the mounting holes of the lower cover edge and the bottom of the seat body of the transmission seat, and the lower bearing cover is fixedly connected with the bottom of the transmission seat.
[0012] The beneficial technical effects of the utility model are as follows: by arranging the main shaft and the transmission seat of large diameter on the transmission device, and arranging the bearing between the main shaft and the transmission seat of the transmission device, the transmission device can prevent the main shaft from producing deflection and shaking when driving the upper mill disc mechanism to rotate. The bearing cover arranged on the two ends of the transmission seat seals the bearing, prevents dust and other impurities from entering the bearing, and prevents the running of the transmission device from being affected. Therefore, by arranging the transmission device between the motor and the upper mill disc mechanism, and driving the upper mill disc mechanism to rotate through the transmission device, the upper mill disc mechanism can always maintain a stable working state. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a whole structure schematic view of the embodiment one;
[0014] Figure 2 It is an exploded schematic view of the embodiment one; Figure 1
[0015] Figure 3 It is an exploded schematic view of the bearing and the bearing cover of the embodiment one;
[0016] Figure 4 It is a three-dimensional structure schematic view of the transmission seat of the embodiment one;
[0017] Figure 5 It is the transmission device in the embodiment one;
[0018] In the figure: shaft body 11, shaft seat 12, seat body 21, seat along 22, limiting ring 23, inner ring 31, outer ring 32, annular groove 321, upper cover body 41, upper cover along 42, upper inner ring 51, upper outer ring 52, lower inner ring 61, lower outer ring 62, upper cover body 71, upper cover along 72, motor 81, driving wheel 82, belt 9. DETAILED DESCRIPTION
[0019] The utility model will be further described below in combination with examples and drawings: Example one
[0020] As shown in Figure 1 , Figure 2 and Figure 3 , the transmission device comprises a main shaft, a driven wheel, a transmission seat and a bearing. Among them, the main shaft comprises a shaft body 11 and a shaft seat 12, the shaft seat 12 is integrally formed at the lower end of the shaft body 11, the driven wheel comprises an inner ring 31 and an outer ring 32, and the outer ring 32 is integrally formed on the outer side of the inner ring 31. The inner ring 31 is provided with a through mounting hole, the top of the shaft body 11 of the main shaft is provided with a mounting hole corresponding to the mounting hole of the inner ring 31, and the bolt passes through the mounting hole to fixedly connect the driven wheel on the main shaft. The outer side of the outer ring 32 is provided with an annular groove 321 recessed inwardly, and in the embodiment, the outer side of the outer ring 32 is provided with two annular grooves 321 arranged in parallel with each other.
[0021] As shown in Figure 3 and Figure 4 , the transmission seat comprises a seat body 21, a seat along 22 and a limiting ring 23, the seat body 21 is a circular tube, the seat along 22 is integrally formed on the outer side of the seat body 21, and the limiting ring 23 is integrally formed on the inner side of the seat body 21. The bearing comprises an upper bearing and a lower bearing, the upper bearing and the lower bearing are both sleeved on the shaft body 11 of the main shaft, and the transmission seat is sleeved on the upper bearing and the lower bearing. Among them, the upper bearing comprises an upper inner ring 51 and an upper outer ring 52, the upper inner ring 51 and the upper outer ring 52 are both circular rings, and the height of the upper inner ring 51 is greater than the height of the upper outer ring 52. The lower bearing comprises a lower inner ring 61 and a lower outer ring 62, the lower inner ring 61 and the lower outer ring 62 are both circular rings, and the height of the lower inner ring 61 is greater than the height of the lower outer ring 62.
[0022] As shown in Figures 1 to 4As shown, the upper inner ring 51 of the upper bearing and the lower inner ring 61 of the lower bearing are connected with the main shaft in an interference fit, and the upper outer ring 52 of the upper bearing and the lower outer ring 62 of the lower bearing are connected with the seat body 21 of the transmission seat in an interference fit. The limiting ring 23 forms an annular stepped structure with the seat body 21, and the bottom of the upper outer ring 52 is in abutment with the top of the limiting ring 23 of the transmission seat, and the top of the lower outer ring 62 is in abutment with the bottom of the limiting ring 23 of the transmission seat. In this embodiment, the shaft body 11 is divided into three sections according to the different outer diameters of the shaft body 11, and the outer sides of the adjacent two sections of the shaft body 11 also form annular stepped structures. The bottoms of the upper inner ring 51 of the upper bearing and the lower inner ring 61 of the lower bearing are in abutment with the two annular stepped structures on the shaft body 11, and the annular stepped structures on the outer side of the shaft body 11 and the inner side of the transmission seat together limit the upper bearing and the lower bearing in the vertical direction.
[0023] In order to prevent impurities such as dust from entering the bearing and affecting the operation of the transmission device, bearing covers are arranged at both ends of the transmission seat, and the bearing covers are sleeved on the shaft body 11 to seal the bearings. The bearing covers include an upper bearing cover and a lower bearing cover. The upper bearing cover includes an upper cover body 41 and an upper cover flange 42, the upper cover flange 42 is integrally formed on the outer side of the lower end of the upper cover body 41, and the upper cover flange 42 is provided with a through mounting hole. The lower bearing cover includes a lower cover body and a lower cover flange, the lower cover flange is integrally formed on the outer side of the upper end of the lower cover body, and the lower cover flange is provided with a through mounting hole. The upper cover body 41 of the upper bearing cover is sleeved on the upper inner ring 51 of the upper bearing, and the upper cover flange 42 of the upper bearing cover is fixedly connected with the top of the seat body 21 of the transmission seat; the lower cover body of the lower bearing cover is sleeved on the lower inner ring 61 of the lower bearing, and the lower cover flange of the lower bearing cover is fixedly connected with the bottom of the seat body 21 of the transmission seat.
[0024] The top and bottom of the seat body 21 of the transmission seat are respectively provided with mounting holes corresponding to the mounting holes of the upper cover flange 42 and the lower cover flange, the upper bearing cover is sleeved on the upper end of the main shaft, the bolts pass through the mounting holes of the upper cover flange 42 and the top of the seat body 21 of the transmission seat to fixedly connect the upper bearing cover with the top of the transmission seat; the lower bearing cover is sleeved on the lower end of the main shaft, the bolts pass through the mounting holes of the lower cover flange and the bottom of the seat body 21 of the transmission seat to fixedly connect the lower bearing cover with the bottom of the transmission seat.
[0025] As Figure 1 and Figure 5As shown, the motor 81 is fixedly connected with the driving wheel 82 on the top of the main shaft, and the driven wheel is fixedly connected on the shaft body 11 of the transmission device, and two annular grooves 321 are also formed on the outer side of the driving wheel 82. The motor 81 and the transmission seat are fixedly connected on the support of the grinding machine, and the belt 9 is sleeved on the driving wheel 82 of the motor 81 and the driven wheel of the transmission device, so that the motor 81 drives the main shaft of the transmission device to rotate through the belt 9. In the embodiment, the belt 9 is preferably a triangular belt, and the upper grinding disc mechanism is connected with the shaft seat 12 of the main shaft. When the main shaft of the transmission device rotates, the upper grinding disc mechanism is driven to rotate through the shaft seat 12, and the product is ground.
[0026] Obviously, some improvements or modifications made without departing from the principles of the present application should be considered as the protection scope of the present application.
Claims
1. A drive for an abrasive wheel on a grinder, characterized in that The main shaft, the driven wheel, the transmission seat and the bearing, the driven wheel is fixedly connected with the top of the main shaft, the outer side of the driven wheel is provided with an annular groove which is concave inwardly; the main shaft comprises a shaft body and a shaft seat, the shaft seat is integrally formed at the lower end of the shaft body, the bearing is sleeved on the shaft body of the main shaft, and the transmission seat is sleeved on the bearing.
2. A drive for an upper grinding plate of a grinding machine according to claim 1, wherein, The transmission seat comprises a seat body, a seat along and a limiting ring, the seat body is a circular tube, the seat along is integrally formed on the outer side of the seat body, and the limiting ring is integrally formed on the inner side of the seat body.
3. A drive for an upper grinding plate of a grinding machine according to claim 2, wherein, The bearing comprises an upper bearing and a lower bearing, the upper bearing comprises an upper inner ring and an upper outer ring, both the upper inner ring and the upper outer ring are circular rings, and the height of the upper inner ring is greater than that of the upper outer ring; the lower bearing comprises a lower inner ring and a lower outer ring, both the lower inner ring and the lower outer ring are circular rings, and the height of the lower inner ring is greater than that of the lower outer ring.
4. A drive for an upper grinding plate of a grinding machine according to claim 3, wherein, The upper inner ring of the upper bearing and the lower inner ring of the lower bearing are in interference fit connection with the main shaft, the upper outer ring of the upper bearing and the lower outer ring of the lower bearing are in interference fit connection with the seat body of the transmission seat, and the bottom of the upper outer ring is in abutment with the top of the limiting ring of the transmission seat, and the top of the lower outer ring is in abutment with the bottom of the limiting ring of the transmission seat.
5. A drive for an upper grinding plate of a grinding machine according to claim 4, wherein, The bearing cover comprises an upper bearing cover and a lower bearing cover, the upper bearing cover comprises an upper cover body and an upper cover along, the upper cover along is integrally formed on the outer side of the lower end of the upper cover body, and the upper cover along is provided with a through mounting hole; the lower bearing cover comprises a lower cover body and a lower cover along, the lower cover along is integrally formed on the outer side of the upper end of the lower cover body, and the lower cover along is provided with a through mounting hole.
6. A drive for an upper millstone according to claim 5, wherein, The upper cover body of the upper bearing cover is sleeved on the upper inner ring of the upper bearing, and the upper cover along of the upper bearing cover is fixedly connected with the top of the seat body of the transmission seat; the lower cover body of the lower bearing cover is sleeved on the lower inner ring of the lower bearing, and the lower cover along of the lower bearing cover is fixedly connected with the bottom of the seat body of the transmission seat.
7. A drive for an upper millstone according to claim 6, wherein, The top and the bottom of the seat body of the transmission seat are respectively provided with mounting holes corresponding to the mounting holes of the upper cover along and the lower cover along, the upper bearing cover is sleeved on the upper end of the main shaft, the bolt passes through the mounting holes of the upper cover along and the top of the seat body of the transmission seat, and the upper bearing cover is fixedly connected with the top of the transmission seat; the lower bearing cover is sleeved on the lower end of the main shaft, the bolt passes through the mounting holes of the lower cover along and the bottom of the seat body of the transmission seat, and the lower bearing cover is fixedly connected with the bottom of the transmission seat.