CN218455156U - Ventilation device, anti-overflow grease injection structure and agricultural machine - Google Patents

Abstract

The utility model relates to a ventilative device, anti-overflow are annotated fat structure and agricultural machine relates to lubricated chamber ventilative device field, has the bleeder vent on ventilative device's the base, and the one end of drawing the axle is fixed with the closure plate, and the other end passes the bleeder vent to have along the closing plate of radial outside extension, the closing plate be used for with the tip butt of bleeder vent, the elastic component is located between closure plate and the base, and both ends respectively with closure plate and base butt or fixed connection. The anti-overflow grease injection structure comprises a ventilation device. The agricultural machine comprises an anti-overflow grease injection structure. The beneficial effects are that: when grease is filled, the air holes are automatically opened after the pressure in the lubricating cavity reaches a certain value, the phenomenon that the bearing or the sealing ring is damaged due to excessive grease filling is avoided, the air holes are sealed by the sealing plate when the grease is not filled, and the phenomenon that related parts are damaged due to the entering of foreign matters is avoided. The ventilating device is simple and practical, low in cost and convenient for an operator to observe, avoids the fault of high-cost parts at lower cost, is easy to popularize and improves the satisfaction degree of users.

Description

Ventilation device, anti-overflow grease injection structure and agricultural machine

Technical Field

The utility model relates to a lubricated chamber breather field, concretely relates to breather, anti-overflow annotate fat structure and agricultural machinery.

Background

Lubricating cavities needing to be filled with lubricating grease or lubricating oil in the current market are only reserved with one oil filling port, users cannot judge whether the filling amount is proper or not during maintenance, the shortage of the filling amount or the filling amount can cause bearing damage or movement part clamping stagnation, the excessive filling amount or the filling amount can cause poor burning loss of heat dissipation of the bearing, falling of a sealing ring of the bearing and leading to poor faults such as bearing burning loss, falling of the sealing part, overflow and throwing of the grease to cause damage to adjacent parts and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is how to avoid lubricating grease or lubricating oil filling too much.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a ventilation device, ventilation device includes closure plate, base, elastic component and draws the axle, the bleeder vent has on the base, the one end of drawing the axle is fixed with closure plate, the other end passes the bleeder vent to have along the closing plate of radial outside extension, the closing plate be used for with the tip butt of bleeder vent, the elastic component is located closure plate with between the base, and both ends respectively with closure plate with base butt or fixed connection.

The utility model has the advantages that: the ventilation device is used for being installed in the lubricating cavity, and under the action of elastic force of the elastic piece, the sealing plate is abutted to the end part of the ventilation hole and seals the ventilation hole, so that the tightness of the lubricating cavity is guaranteed. When the filling amount of grease or lubricating oil in the lubricating cavity is gradually increased, the pressure in the lubricating cavity is gradually increased to reach a certain pressure value, so that the elasticity of the elastic part is overcome, the blocking plate is pushed to be close to the base, the pull shaft moves along with the elastic part, an operator stops filling oil after recognizing the movement of the pull shaft, the sealing plate is separated from the end part of the air hole at the moment, air or excessive grease can be discharged from the air hole until the pressure in the lubricating cavity is reduced to be insufficient to push the blocking plate and the pull shaft, and the blocking plate and the pull shaft reset under the action of the elastic part.

The utility model discloses a ventilation unit, when annotating the grease the automatic bleeder vent of opening after pressure reaches certain numerical value in the lubricated chamber, avoid annotating grease too much and lead to bearing or sealing washer to damage, the bleeder vent is only opened when annotating when reaching certain pressure in the lubricated chamber when annotating the grease, and the bleeder vent is sealed by the closing plate when not annotating the grease, avoids the foreign matter to get into and causes the relevant part to damage. The ventilating device is simple and practical, low in cost and convenient for operators to observe, avoids the fault of high-cost parts at lower cost, is easy to popularize and improves the satisfaction of users.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, one side of base has the mounting groove, the elastic component with the closure plate all is located in the mounting groove, the tank bottom of mounting groove has the bleeder vent.

The beneficial effect of adopting the further scheme is that: the mounting groove can carry out spacing and direction to elastic component and closure plate, reduces the axis of pulling and rocks.

Further, the one end to the other end of axle draw is fixed connection bulb structure, necking down section and support section in proper order, the diameter of necking down section is less than the diameter of bulb structure, just the diameter of necking down section is less than the diameter of support section, the closure plate has the closure plate through-hole, the closure plate passes through the closure plate through-hole cover is in the necking down section, the support section slides and passes the bleeder vent to have the closing plate, the closing plate correspond with one side of bleeder vent is sealed inclined plane.

The beneficial effect of adopting the further scheme is that: the blocking plate passes through the ball head structure through the blocking plate through hole to be installed, and the installation is convenient.

Further, the outer side wall of the base is provided with an external thread.

The beneficial effect of adopting the further scheme is that: the base is connected with the relevant structure of the lubricating cavity through the external threads, and the threaded structure can avoid grease leakage.

The utility model also provides a fat structure is annotated to anti-overflow, anti-overflow annotate fat structure including lubricated chamber, oiling device and ventilative device, lubricated chamber have oiling mouth and pressure observation mouth, ventilative device install in pressure observation mouth, just the closing plate is located lubricated chamber is outside, the oiling device install in the oiling mouth.

The beneficial effects are that: when lubricating grease is required to be added, the lubricating cavity is filled through the oil filling device, the air holes of the air permeable device are automatically opened after the pressure in the lubricating cavity reaches a certain numerical value, the phenomenon that the bearing or the sealing ring is damaged due to excessive oil filling is avoided, the air holes are sealed by the sealing plate when grease is not filled, and the phenomenon that related parts are damaged due to the fact that foreign matters enter the air holes is avoided. The anti-overflow grease injection structure is simple and practical, has high reliability and is convenient for operators to observe.

Further, the oil injection device is an oil cup or a screw plug.

The beneficial effect of adopting the further scheme is that: the oil can be filled through the oil cup, or the screw plug is screwed off, and the oil can be directly filled into the oil filling port.

Further, the base is in threaded connection with the pressure observation port.

The beneficial effect of adopting the further scheme is that: the base is in threaded connection with the pressure observation port, and the threaded structure can avoid grease leakage.

Furthermore, the anti-overflow grease injection structure further comprises a movable disc and a fixed disc, wherein the movable disc and the fixed disc can rotate relatively, the lubricating cavity is formed between the movable disc and the fixed disc, the movable disc and/or the fixed disc is provided with an oil injection port communicated with the lubricating cavity, and the movable disc and/or the fixed disc is provided with a pressure observation port communicated with the lubricating cavity.

Alternatively, the anti-overflow grease injection structure comprises a first single-face sealed bearing, a second single-face sealed bearing, a bearing seat and a rotating shaft, wherein the first single-face sealed bearing and the second single-face sealed bearing are sleeved on the rotating shaft, the first single-face sealed bearing and the second single-face sealed bearing are installed in a bearing hole of the bearing seat, an area defined by the first single-face sealed bearing, the second single-face sealed bearing, the bearing seat and the rotating shaft is a lubricating cavity, and the bearing seat is provided with the oil injection port and the pressure observation port which are communicated with the bearing hole of the bearing seat.

The beneficial effect who adopts above-mentioned scheme is: for the lubrication cavity with invisible internal oil mass, the insufficient or excessive oil filling amount can be avoided, and the reliability of each part is ensured.

The utility model also provides an agricultural machine, include the anti-overflow annotate fat structure.

Drawings

FIG. 1 is a structural view of the ventilating device of the present invention;

FIG. 2 is a structural diagram of one embodiment of the anti-overflow grease injection structure of the present invention;

fig. 3 is a structural diagram of another embodiment of the anti-spill grease-pouring structure of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a movable plate; 2. an oiling device; 3. fixing a disc; 4. a ventilation device; 5. a seal ring; 6. a blocking plate; 7. a base; 8. pulling the shaft; 9. an elastic member; 10. a first single-sided sealed bearing; 11. a bearing seat; 12. a second single-sided sealed bearing; 13. a rotating shaft.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, the present embodiment provides a ventilation device, the ventilation device 4 includes a blocking plate 6, a base 7, an elastic member 9 and a pull shaft 8, the base 7 has a ventilation hole, one end of the pull shaft 8 is fixed with the blocking plate 6, the other end passes through the ventilation hole, and has a sealing plate extending radially outward, the sealing plate is used for abutting against an end of the ventilation hole, the elastic member 9 is located between the blocking plate 6 and the base 7, and two ends of the elastic member are respectively abutted against or fixedly connected to the blocking plate 6 and the base 7.

The ventilation device is used for being installed in the lubricating cavity, and under the action of elastic force of the elastic piece 9, the sealing plate is abutted to the end part of the ventilation hole and seals the ventilation hole, so that the tightness of the lubricating cavity is guaranteed. When the filling amount of grease or lubricating oil in the lubricating cavity is gradually increased, the pressure in the lubricating cavity is gradually increased, and after a certain pressure value is reached, namely the pressure is greater than the elastic force of the elastic part 9, the elastic force of the elastic part 9 is overcome, the blocking plate 6 is pushed to be close to the base 7, the pull shaft 8 moves along with the elastic force, an operator recognizes the movement of the pull shaft 8 and stops filling oil, the sealing plate is separated from the end part of the air hole at the moment, air or excessive grease can be discharged from the air hole until the pressure in the lubricating cavity is reduced to be insufficient to push the blocking plate 6 and the pull shaft 8, and the blocking plate 6 and the pull shaft 8 reset under the action of the elastic part 9.

The breather of this embodiment, when annotating the grease the automatic opening of bleeder vent after pressure reaches certain numerical value in lubricated chamber, avoid annotating grease too much and lead to bearing or sealing washer to damage, the bleeder vent is only opened when annotating grease in the lubricated intracavity and reacing certain pressure, and the bleeder vent is sealed by the closing plate when not annotating grease, avoids the foreign matter to get into and causes the relevant part to damage. The ventilating device is simple and practical, low in cost and convenient for operators to observe, avoids the fault of high-cost parts at lower cost, is easy to popularize and improves the satisfaction of users.

Optionally, the base 7 is connected with the structure related to the lubrication cavity through a threaded connection, or the base 7 is provided with a flange, connected with the structure related to the lubrication cavity through a bolt, and a sealing gasket or a sealing ring can be arranged at the joint.

The elastic member 9 may be a spring or other elastic material with elastic force meeting the pressure required by the lubrication cavity.

On the basis of any of the above solutions, optionally, the base 7 may be a plate-shaped structure, and one end of the pull shaft 8, the blocking plate 6 and the elastic member 9 extend into the lubricating cavity.

Optionally, the base 7 may also be: as shown in fig. 1, one side of the base 7 has a mounting groove, the elastic element 9 and the blocking plate 6 are both located in the mounting groove, and the bottom of the mounting groove has the ventilation holes.

The mounting groove can carry out spacing and direction to elastic component 9 and closure plate 6, reduces and draws axle 8 to rock.

It should be noted that, along the radial direction of the blocking plate 6, a gap is formed between the blocking plate 6 and the installation groove, so that the excess grease can pass through and be discharged from the air holes.

On the basis of any one of the above schemes, as shown in fig. 1, one end of the pull shaft 8 is sequentially and fixedly connected with a ball head structure, a necking section and a supporting section to the other end, the diameter of the necking section is smaller than that of the ball head structure, the diameter of the necking section is smaller than that of the supporting section, the blocking plate 6 is provided with a blocking plate through hole, the blocking plate 6 is sleeved on the necking section through the blocking plate through hole, the supporting section slides through the air hole and is provided with the sealing plate, and one side, corresponding to the air hole, of the sealing plate is a sealing inclined plane.

The blocking plate 6 passes through the ball head structure through the blocking plate through hole to be installed, and the installation is convenient. The sealing inclined plane is inclined, compared with a plane parallel to the end face of the air vent, the sealing inclined plane has higher sensitivity, and once the elastic piece 9 is compressed and deformed by the pressure in the lubricating cavity, the sealing inclined plane can be immediately separated from the air vent and enables oil to be discharged.

Specifically, the diameter of the ball head structure is smaller than that between the supporting sections, so that the pull shaft 8 can be conveniently installed.

On the basis of any one of the above solutions, the outer side wall of the base 7 has an external thread.

The base 7 is connected with the structure related to the lubricating cavity through external threads, and the thread structure can avoid grease leakage.

As shown in fig. 2 and fig. 3, the embodiment further provides an anti-overflow grease injection structure, the anti-overflow grease injection structure includes a lubrication cavity, an oil injection device 2 and the ventilation device 4, the lubrication cavity has an oil injection port and a pressure observation port, the ventilation device 4 is installed in the pressure observation port, the sealing plate is located outside the lubrication cavity, and the oil injection device 2 is installed in the oil injection port.

When lubricating grease is required to be added, the lubricating cavity is filled through the oil filling device 2, the air holes of the air permeable device 4 are automatically opened after the pressure in the lubricating cavity reaches a certain numerical value, the phenomenon that the bearing or the sealing ring is damaged due to excessive oil filling is avoided, the air holes are sealed by the sealing plate when grease is not filled, and the phenomenon that related parts are damaged due to the fact that foreign matters enter is avoided. The anti-overflow grease injection structure is simple and practical, has high reliability and is convenient for operators to observe.

Alternatively, the ventilation device can be replaced by a simple screw plug, the screw plug at the position of the ventilation hole is screwed off during oil injection, and the phenomenon that the oil injection amount is not appropriate is avoided by observing whether the oil is overflowed from the oil injection hole or not.

On the basis of the scheme, the oil injection device 2 is an oil cup or a screw plug.

Oil can be filled through the oil cup; or the screw plug is unscrewed, and oil is directly injected into the oil injection port.

On the basis of any scheme, the base 7 is in threaded connection with the pressure observation port.

The base 7 is in threaded connection with the pressure observation port, and grease leakage can be avoided through the threaded structure.

As shown in fig. 2, in one embodiment, the grease overflow preventing and injecting structure further comprises a movable plate 1 and a fixed plate 3, the movable plate 1 and the fixed plate 3 can rotate relatively, and the lubricating cavity is formed between the movable plate 1 and the fixed plate 3, the movable plate 1 and/or the fixed plate 3 is provided with the grease injecting port communicated with the lubricating cavity, and the movable plate 1 and/or the fixed plate 3 is provided with the pressure observing port communicated with the lubricating cavity.

Specifically, a sealing ring 5 is arranged at the joint where the movable disc 1 and the fixed disc 3 are contacted.

As shown in fig. 3, in another embodiment, the anti-overflow grease-injecting structure includes a first single-sided sealed bearing 10, a second single-sided sealed bearing 12, a bearing seat 11 and a rotating shaft 13, the first single-sided sealed bearing 10 and the second single-sided sealed bearing 12 are both sleeved on the rotating shaft 13, the first single-sided sealed bearing 10 and the second single-sided sealed bearing 12 are installed in a bearing hole of the bearing seat 11, an area enclosed among the first single-sided sealed bearing 10, the second single-sided sealed bearing 12, the bearing seat 11 and the rotating shaft 13 is the lubrication cavity, and the bearing seat 11 is provided with the oil injection port and the pressure observation port which are communicated with the bearing hole.

Lubricating grease is filled into a cavity between the first single-face sealed bearing 10 and the second single-face sealed bearing 12 through the oil filling device 2, and when the pressure in the cavity reaches a certain value, the ventilating device 4 is automatically opened. The ventilating device 4 is opened when the internal pressure reaches a certain value, so that an operator can conveniently recognize and stop oil injection, and when the atmospheric pressure is greater than or equal to the internal pressure of the lubricating cavity, the ventilating device is closed to prevent foreign matters from entering the cavity to cause bearing damage. And for the lubricating cavity with invisible internal oil mass, insufficient or excessive grease filling quantity can be avoided, and the reliability of each part is ensured.

The embodiment also provides agricultural machinery comprising the anti-overflow grease injection structure.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides a ventilation device, its characterized in that, ventilation device (4) include closure plate (6), base (7), elastic component (9) and draw axle (8), the bleeder vent has on base (7), the one end of drawing axle (8) is fixed with closure plate (6), and the other end passes the bleeder vent to have the closing plate along radial outside extension, the closing plate be used for with the tip butt of bleeder vent, elastic component (9) are located closure plate (6) with between base (7), and both ends respectively with closure plate (6) with base (7) butt or fixed connection.

2. A venting device as claimed in claim 1, wherein said base (7) has a mounting groove on one side thereof, said resilient member (9) and said closure plate (6) being located in said mounting groove, said mounting groove having said vent hole in a bottom thereof.

3. The ventilation device according to claim 1, wherein the pull shaft (8) is fixedly connected with a ball head structure, a necking section and a supporting section from one end to the other end in sequence, the diameter of the necking section is smaller than that of the ball head structure, the diameter of the necking section is smaller than that of the supporting section, the blocking plate (6) is provided with a blocking plate through hole, the blocking plate (6) is sleeved on the necking section through the blocking plate through hole, the supporting section slides through the ventilation hole and is provided with the sealing plate, and one side of the sealing plate corresponding to the ventilation hole is a sealing inclined surface.

4. A venting device as claimed in any one of claims 1 to 3, wherein the outer side wall of said base (7) is externally threaded.

5. An overfill prevention and filling structure, characterized in that, the overfill prevention and filling structure comprises a lubrication cavity, an oil filling device (2) and a venting device (4) according to any one of claims 1-4, the lubrication cavity has an oil filling opening and a pressure observation opening, the venting device (4) is mounted to the pressure observation opening, and the sealing plate is located outside the lubrication cavity, the oil filling device (2) is mounted to the oil filling opening.

6. The overfill prevention structure of claim 5, wherein said oil filling device (2) is an oil cup or a screw plug.

7. An overfill prevention structure according to claim 5, wherein said base (7) is threadedly connected to said pressure sight glass.

8. An anti-overflow grease injection structure according to any one of claims 5-7, characterized in that, the anti-overflow grease injection structure further comprises a movable plate (1) and a fixed plate (3), the movable plate (1) and the fixed plate (3) can rotate relatively, and the lubricating cavity is formed between the movable plate (1) and the fixed plate (3), the movable plate (1) and/or the fixed plate (3) is provided with the oil injection port communicated with the lubricating cavity, and the movable plate (1) and/or the fixed plate (3) is provided with the pressure observation port communicated with the lubricating cavity.

9. The grease overflow preventing and injecting structure according to any one of claims 5-7, characterized in that the grease overflow preventing and injecting structure comprises a first single-sided sealed bearing (10), a second single-sided sealed bearing (12), a bearing seat (11) and a rotating shaft (13), wherein the first single-sided sealed bearing (10) and the second single-sided sealed bearing (12) are sleeved on the rotating shaft (13), the first single-sided sealed bearing (10) and the second single-sided sealed bearing (12) are installed in a bearing hole of the bearing seat (11), an area enclosed among the first single-sided sealed bearing (10), the second single-sided sealed bearing (12), the bearing seat (11) and the rotating shaft (13) is the lubrication cavity, and the bearing seat (11) is provided with the oil filling port and the pressure observation port which are communicated with the bearing hole of the bearing seat.

10. An agricultural machine comprising the spill-proof grease injection structure as claimed in any one of claims 5 to 9.

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