CN216519421U

CN216519421U - High leakproofness grinds case

Info

Publication number: CN216519421U
Application number: CN202120655643.5U
Authority: CN
Inventors: 杨文静
Original assignee: Xiamen Fengshuo Yuanhang Industrial Equipment Co ltd
Current assignee: Xiamen Fengshuo Yuanhang Industrial Equipment Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2022-05-13
Anticipated expiration: 2031-03-31

Abstract

The utility model provides a high-sealing grinding box which comprises a closed grinding box shell and a driving motor fixed on the grinding box shell, wherein a main output gear extending into the grinding box shell is fixed at the output end of the driving motor, transmission gear sets are respectively arranged on two sides of the main output gear in the grinding box shell and comprise a gear A meshed with the output gear and a gear B meshed with the gear A, a transmission shaft for fixing the gear A and the gear B is connected onto the grinding box shell through a bearing, the grinding box shell is provided with an opening through which the transmission shaft extends, a bushing is fixed in the opening, the inner side of the bushing is connected with the transmission shaft through the bearing, the lower part of the bushing extends to the lower part of the opening, a shaft sleeve positioned on the inner side of the bushing is fixed on the lower part of the transmission shaft, and a sealing ring sleeved outside the shaft sleeve is arranged between the shaft sleeve and the bushing. The utility model has compact structure, good sealing performance and long service life of the transmission shaft.

Description

High leakproofness grinds case

Technical Field

The utility model relates to a grinding box with high sealing performance.

Background

Among the existing structure, grind quick-witted grinding head and need rely on grinding the case and carry out the transmission, nevertheless because utilize a plurality of gear transmission efficiency losses great among the transmission process, transmission shaft and sealing member direct contact life are lower also influences transmission efficiency in addition.

SUMMERY OF THE UTILITY MODEL

The utility model improves the problems, namely the technical problems to be solved by the utility model are that the transmission efficiency loss is large by utilizing a plurality of gears in the transmission process of the grinding machine, and in addition, the direct contact service life of a transmission shaft and a sealing element is low, so the transmission efficiency is also influenced.

The specific embodiment of the utility model is as follows: a high-sealing grinding box comprises a closed grinding box shell and a driving motor fixed on the grinding box shell, a main output gear extending into the grinding box shell is fixed at the output end of the driving motor, a transmission gear set is respectively arranged at two sides of the main output gear in the grinding box shell, the transmission gear set comprises a gear A meshed with the output gear and a gear B meshed with the gear A, the grinding box shell is connected with a transmission shaft for fixing the gear A and the gear B through a bearing, the grinding box shell is provided with an opening for the transmission shaft to extend out, a bushing is fixed in the open hole, the inner side of the bushing is connected with a penetrating transmission shaft through a bearing, the lower part of the bushing extends to the lower part of the open hole, the lower part of the transmission shaft is fixed with a shaft sleeve positioned at the inner side of the bush, and a sealing ring sleeved outside the shaft sleeve is arranged between the shaft sleeve and the bush.

Furthermore, the gears A positioned on two sides of the main output gear are arranged diagonally, the lower half part of the tooth surface of the outer surface of the gear A is meshed with the main output gear, and the upper half part of the tooth surface of the outer surface of the gear A is meshed with the gear B.

Furthermore, the surface of the grinding box shell is provided with a dust suction port, and a dust suction pipe extending into the grinding box shell is fixed at the dust suction port.

Further, the surface of the grinding box shell is provided with a water pipe threaded interface.

Further, the grinding box shell is fixedly connected with the lining through bolts.

Furthermore, the surface of the shaft sleeve is provided with a protruding step surface, a tray fixed at the bottom of the grinding box is sleeved on the step surface, and the sealing ring is arranged on the tray.

Further, the sealing ring is a lip-shaped sealing ring, has two layers and is opened towards the inside of the grinding box shell.

Further, the main output gear, the gear a and the gear B are helical gears.

Compared with the prior art, the utility model has the following beneficial effects: the two transmission gear sets are arranged at the oblique opposite angles, the structure is compact, the sealing performance is good, the transmission shaft can avoid abrasion caused by direct contact of the transmission shaft and the sealing ring by utilizing the shaft sleeve, and the service life of the transmission shaft is long.

Drawings

FIG. 1 is a schematic view of the layout of the internal gears of the grinding box of the present invention.

FIG. 2 is a schematic cross-sectional view of FIG. 1A-A according to the present invention.

Fig. 3 is a partially enlarged structural view of the transmission shaft of fig. 2 according to the present invention.

FIG. 4 is a schematic perspective view of the layout of the internal gears of the grinding box of the present invention.

FIG. 5 is a schematic structural diagram of the working state of the grinding box of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 5, a high-sealing grinding box comprises a closed grinding box housing 10 and a driving motor 20 fixed on the housing, wherein a main output gear 210 extending into the housing is fixed at an output end of the driving motor, a transmission gear set is respectively arranged inside the housing at two sides of the main output gear, the transmission gear set comprises a gear a310 engaged with the output gear and a gear B320 engaged with the gear a310, a transmission shaft 40 for fixing the gear a and the gear B is connected to the housing via a bearing 101, the housing has an opening for the transmission shaft to extend out, a bushing 110 is fixed in the opening, the inner side of the bushing 110 is connected to the transmission shaft 40 via a transmission bearing 102, the lower part of the bushing 110 extends to the lower part of the opening, a shaft sleeve 410 positioned at the inner side of the bushing is fixed at the lower part of the transmission shaft, and a sealing ring 420 sleeved outside the shaft sleeve is arranged between the shaft sleeve and the bushing.

In this embodiment, the gears a located on both sides of the main output gear are diagonally arranged, the lower half of the tooth surface of the outer surface of the gear a is meshed with the main output gear, and the upper half of the tooth surface of the outer surface of the gear a is meshed with the gear B.

The diagonal arrangement can save space, and the upper half part of the gear A is meshed with the lower half part of the main output gear to be meshed with the gear B, so that the layout of the intermediate transmission gear can be reduced, and the gear A is more compact and has higher efficiency.

In this embodiment, the grinding box housing and the bushing are fixedly connected by bolts.

In this embodiment, the surface of the sleeve has a protruding step surface 411, a tray 430 fixed to the bottom of the grinding chamber is fitted over the step surface, and the sealing ring 420 is placed on the tray. In this embodiment, the sealing ring is a lip-shaped sealing ring, and the sealing ring has two layers stacked on the tray and has an opening facing the inside of the grinding box housing.

In this embodiment, utilize the axle sleeve can avoid transmission shaft and sealing washer direct contact and lead to wearing and tearing, the multilayer sealing washer can improve the leakproofness in addition and avoid the lubricating oil in the grinding case to spill to being fixed in on the grinding head of transmission shaft lower extreme.

In the second embodiment, the surface of the grinding box housing has a dust suction port 120, a dust suction pipe 121 extending into the grinding box housing is fixed at the dust suction port, and a water pipe threaded interface 130 is arranged on the surface of the grinding box housing for leading in a water pipe.

In this embodiment, the main output gear, the gear a, and the gear B are helical gears to improve the stability of the engagement.

If the utility model discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

The upper and lower orientations are described with reference to the state of the mill when in use.

In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.

Any part provided by the utility model can be assembled by a plurality of independent components or can be manufactured by an integral forming process.

Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.

Claims

1. A high-sealing grinding box is characterized by comprising a closed grinding box shell and a driving motor fixed on the grinding box shell, a main output gear extending into the grinding box shell is fixed at the output end of the driving motor, a transmission gear set is respectively arranged at two sides of the main output gear in the grinding box shell, the transmission gear set comprises a gear A meshed with the output gear and a gear B meshed with the gear A, the grinding box shell is connected with a transmission shaft for fixing the gear A and the gear B through a bearing, the grinding box shell is provided with an opening for the transmission shaft to extend out, a bushing is fixed in the open hole, the inner side of the bushing is connected with a penetrating transmission shaft through a bearing, the lower part of the bushing extends to the lower part of the open hole, the lower part of the transmission shaft is fixed with a shaft sleeve positioned at the inner side of the bush, and a sealing ring sleeved outside the shaft sleeve is arranged between the shaft sleeve and the bush.

2. The high-tightness grinding box according to claim 1, wherein the gears a located on both sides of the main output gear are diagonally arranged, the lower half of the tooth surface of the outer surface of the gear a is engaged with the main output gear, and the upper half of the tooth surface of the outer surface of the gear a is engaged with the gear B.

3. The high-tightness grinding box according to claim 1 or 2, wherein a dust suction port is formed on the surface of the grinding box housing, and a dust suction pipe extending into the grinding box housing is fixed at the dust suction port.

4. A high-tightness grinding box according to claim 1 or 2, characterized in that the surface of the grinding box outer shell is provided with a water pipe threaded interface.

5. A high-sealability grinding box according to claim 1 or 2, wherein the grinding box casing and the bush are fixedly connected by bolts.

6. The high-tightness grinding box of claim 1 or 2, wherein the surface of the sleeve is provided with a protruding step surface, a tray fixed at the bottom of the grinding box is sleeved on the step surface, and the sealing ring is arranged on the tray.

7. A high-tightness grinding box according to claim 1 or 2, characterized in that said sealing ring is a lip-shaped sealing ring having two layers and opening towards the inside of the grinding box housing.

8. A high-sealability grinding box according to claim 1 or 2, wherein the main output gear, gear a and gear B are helical gears.