CN210485225U

CN210485225U - Grease injection mechanism

Info

Publication number: CN210485225U
Application number: CN201921438468.3U
Authority: CN
Inventors: 郁彬
Original assignee: Kunshan Aodelu Automation Technology Co ltd
Current assignee: Kunshan Aodelu Automation Technology Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-05-08
Anticipated expiration: 2029-08-30

Abstract

The utility model relates to the technical field of bearing processing, and discloses a grease injection mechanism, which comprises a supporting seat, a proportional valve, a grease injection head and an alignment assembly, wherein the proportional valve, the grease injection head and the alignment assembly are arranged on the supporting seat, and the supporting seat is provided with a platform for supporting a bearing; the quantitative valve and the grease injection head are connected through a grease injection channel assembly and are positioned above the platform, and the quantitative valve and the grease injection head can lift relative to the platform together; the alignment assembly is configured to drive the grease injection head to rotate and align with the ball pocket position of the bearing. The proportional valve is directly connected with the grease injection head through the grease injection channel assembly, and the proportional valve and the grease injection head are lifted together, so that the length of the grease injection channel assembly is greatly reduced compared with the combined length of a traditional hose and a traditional hard tube, the loss of grease injection pressure in the grease injection process is reduced, and the stability of grease injection is improved; in addition, the short grease injection channel assembly reduces the waste amount during grease replacement and saves the grease injection cost.

Description

Grease injection mechanism

Technical Field

The utility model relates to a processing technology field of bearing especially relates to a annotate fat mechanism.

Background

The bearings are important components in modern mechanical equipment, and can be divided into sliding bearings and rolling bearings according to friction properties. The rolling bearing generally comprises an inner ring, an outer ring, balls, a retainer and the like, and in order to achieve good rotating performance and long service life, grease is generally injected between the inner ring and the outer ring so as to achieve good lubrication.

At present, the grease injection process of the bearing is generally completed by manual grease injection or mechanical grease injection, and the manual grease injection has the defects of uneven manual grease injection, high labor intensity and high cost, so that the manual grease injection is gradually replaced by the mechanical grease injection. The grease injection pipe of the existing grease injection device is vertical, so that most of grease is accumulated on the surface of the retainer and even leaks out of the bearing, and only a small part of grease enters the grooves of the retainer and the inner ring and the grooves of the rolling body and the outer ring, so that the grease addition amount is too small, reliable lubrication cannot be obtained, and dry friction occurs; however, if the grease adding amount is increased, the grease adding amount is too large, so that the friction torque is increased, the temperature is increased, oil leakage pollutes the environment, and the grease consumption is increased; in addition, grease tube clogging can also affect the amount of grease actually injected into the bearing.

In order to control the grease adding amount, a proportional valve is mounted on a grease injection pipe, the proportional valve does not lift along with a grease injection head, the grease injection pipe is a splicing structure of a hose and a hard pipe, and the grease injection pipe is connected to the grease injection head, so that the connection mode causes the overlong grease injection pipe, grease is in the longer grease injection pipe, the grease injection pressure loss is more, and the instability of grease injection is caused; in addition, when the grease needs to be replaced, the grease is wasted more due to the longer grease injection pipe, and the grease injection cost is increased.

In view of the above-mentioned drawbacks, the present designer is actively making research and innovation to create a grease injection mechanism with a new structure, so that the grease injection mechanism has higher industrial utilization value.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an annotate fat mechanism can shorten the proportional valve and annotate the distance between the fat head, ensures to annotate the fat stably, annotates the fat even, and practices thrift and annotates the fat cost.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a annotate fat mechanism, includes the supporting seat and set up in the proportional valve of supporting seat, annotate fat head and counterpoint subassembly, wherein:

the supporting seat is provided with a platform for supporting the bearing;

the quantitative valve and the grease injection head are connected through a grease injection channel assembly and are positioned above the platform, and the quantitative valve and the grease injection head can lift relative to the platform together;

the alignment assembly is configured to drive the grease injection head to rotate and align with the ball pocket position of the bearing.

As a preferable mode of the grease injection mechanism, the support base is slidably connected to a movable plate capable of ascending and descending along the support base, and the proportional valve, the grease injection head and the grease injection channel assembly are mounted on the movable plate.

As a preferable scheme of the grease injection mechanism, the supporting seat is connected with a driving member for driving the movable plate to ascend and descend.

As a preferable scheme of the grease injection mechanism, the grease injection passage assembly includes a rotating shaft penetrating through the movable plate, one end of the rotating shaft is connected and communicated with the proportional valve in a sealing manner, and the other end of the rotating shaft is communicated with the grease injection head.

As a preferred scheme of the grease injection mechanism, a connecting plate is mounted at an oil outlet of the proportional valve, the connecting plate is connected with a shaft seat, and the shaft seat is connected with the movable plate; the rotary shaft penetrates through the shaft seat to be connected with the connecting plate, and the proportional valve, the connecting plate and the shaft seat are connected through an O-shaped ring to form a sealed space.

As a preferable scheme of the grease injection mechanism, the rotating shaft and the shaft seat are sealed by a labyrinth structure.

As a preferable aspect of the grease injection mechanism, the alignment assembly includes a rotary driving member and a detecting member, wherein:

the detection piece is arranged on the side part of the grease injection head and is configured to detect the relative position of the grease injection head and a ball pocket of the bearing;

the rotary driving part is in transmission connection with the rotating shaft and is configured to drive the rotating shaft to rotate by a corresponding angle according to a detection signal of the detection part.

As a preferable mode of the grease injection mechanism, the detection member is a photoelectric sensor.

As a preferable mode of the grease injection mechanism, an installation angle of the photoelectric sensor can be adjusted.

As a preferable scheme of the grease injection mechanism, the rotary driving member includes a motor disposed on the movable plate, a driving wheel connected to an output shaft of the motor, and a driven wheel connected to the driving wheel through a transmission belt, and the driven wheel is coaxially connected to the rotary shaft.

The utility model has the advantages that: the proportional valve is directly connected with the grease injection head through the grease injection channel assembly, and the proportional valve and the grease injection head are lifted together, so that the length of the grease injection channel assembly is greatly reduced compared with the combined length of a traditional hose and a traditional hard tube, the loss of grease injection pressure in the grease injection process is reduced, and the stability of grease injection is improved; in addition, the short grease injection channel assembly reduces the waste amount during grease replacement and saves the grease injection cost.

Drawings

Fig. 1 is a schematic structural diagram of a grease injection mechanism according to an embodiment of the present invention;

FIG. 2 is a front view of a grease injection mechanism according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is an exploded view of a grease injection passage assembly in a grease injection mechanism according to an embodiment of the present invention.

In the figure: 10-a support seat, 11-a platform, 12-a movable plate, 13-a driving piece, 20-a proportional valve, 30-a grease injection head, 40-a bearing, 50-a grease injection channel assembly, 51-a rotating shaft, 52-a connecting plate, 53-a shaft seat, 54-an O-shaped ring, 61-a detecting piece, 62-a motor, 63-a driving wheel and 64-a driven wheel.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 4, the grease injecting mechanism of the present invention includes a supporting seat 10, and a proportional valve 20, a grease injecting head 30 and an alignment assembly disposed on the supporting seat 10. Wherein, the supporting seat 10 has a platform 11 supporting the bearing 40; the metering valve 20 and the grease injection head 30 are connected through the grease injection channel assembly 50 and are positioned above the platform 11, and the metering valve 20 and the grease injection head 30 can be lifted relative to the platform 11 together; the alignment assembly is configured to drive the grease injection head 30 to rotate and align with the ball pocket location of the bearing 40. The proportional valve 20 is directly connected with the grease injection head 30 through the grease injection channel assembly 50, and the proportional valve 20 and the grease injection head 30 are lifted together, so that the length of the grease injection channel assembly 50 is greatly reduced compared with the combined length of a traditional hose and a traditional hard pipe, the loss of grease injection pressure in the grease injection process is reduced, and the stability of grease injection is improved; in addition, the shorter grease injection channel assembly 50 reduces the amount of waste when replacing grease and saves the cost of grease injection.

In order to make the proportional valve 20 and the grease injection head 30 lift relative to the platform 11, the utility model discloses sliding connection has the fly leaf 12 that can follow its lift on the supporting seat 10 to be connected with the driving piece 13 (like the cylinder) that drives the fly leaf 12 and go up and down at the supporting seat 10, install the proportional valve 20, the grease injection head 30 and the grease injection channel assembly 50 on the fly leaf 12.

Specifically, the grease filling passage assembly 50 includes a rotating shaft 51 penetrating the movable plate 12, and one end of the rotating shaft 51 is hermetically connected and communicated with the metering valve 20 and the other end is communicated with the grease filling head 30. For the sealing connection between the rotating shaft 51 and the proportional valve 20, the utility model is provided with a connecting plate 52 at the oil outlet of the proportional valve 20, the connecting plate 52 is connected with a shaft seat 53, and the shaft seat 53 is connected with the movable plate 12; the rotary shaft 51 is connected to the connection plate 52 through the shaft seat 53, and the metering valve 20, the connection plate 52 and the shaft seat 53 are connected by the O-ring 54 to form a sealed space. The grease in the metering valve 20 is only extruded from the grease injection head 30 by forming a sealed space among the metering valve 20, the connecting plate 52 and the shaft seat 53, and the consistency of the grease is ensured.

Because rotation axis 51 can be rotatory relative axle bed 53, in order to avoid the inside oil leak of axle bed 53, the utility model discloses seal through labyrinth structure between rotation axis 51 and the axle bed 53. The labyrinth structure is prior art and will not be described in detail here. The labyrinth structure ensures that oil does not leak between the rotating shaft 51 and the shaft seat 53.

In addition, the alignment assembly includes a rotary driving member and a detecting member 61. Wherein, the detection piece 61 is arranged at the side of the grease filling head 30, the detection piece 61 is configured to detect the relative position of the grease filling head 30 and the ball pocket of the bearing 40, the detection piece 61 is a photoelectric sensor, specifically an optical fiber sensor, when the grease outlet hole of the grease filling head 30 is aligned with the ball pocket of the bearing, the optical fiber sensor reflects a strong signal, and grease filling is performed according to the signal. The rotary driving member is in transmission connection with the rotary shaft 51, the rotary driving member is configured to drive the rotary shaft 51 to rotate by a corresponding angle according to a detection signal of the detection member 61, the rotary driving member includes a motor 62 disposed on the movable plate 12, a driving wheel 63 connected with an output shaft of the motor 62, and a driven wheel 64 connected with the driving wheel 63 through a transmission belt, and the driven wheel 64 is coaxially connected with the rotary shaft 51. When the grease outlet hole of the grease injection head 30 is opposite to the non-ball pocket position of the bearing, the signal reflected by the optical fiber sensor is weaker, the motor 62 is started to drive the rotating shaft 51 to rotate until the optical fiber sensor reflects the stronger signal, and therefore the alignment of the grease injection head 30 and the ball pocket of the bearing 40 is realized.

In order to promote this annotate fat mechanism application scope to can annotate the fat to the bearing 40 of different specifications, the utility model discloses in, will annotate fat head 30 and can dismantle with rotation axis 51 and be connected, and photoelectric sensor's installation angle can adjust. Annotate fat head 30 and can dismantle the connection, be convenient for change corresponding notes fat head 30 according to the specification of treating notes fat bearing 40, adjust photoelectric sensor's angle, the debugging of being convenient for on the one hand, on the other hand can be according to the position setting photoelectric sensor position of the ball pocket position of different bearings 40 and the play fat hole of annotating fat head 30.

When the bearing 40 to be greased reaches the platform 11 of the greasing mechanism, the motor 62 drives the driving wheel 63 to rotate, the driven wheel 64 is driven to rotate through the conveying belt, and the greasing head 30 is aligned with the ball pocket of the bearing 40 by comparing the size of the reflected signals of the ball pocket and the non-ball pocket through the optical fiber sensor. After the ball pockets are aligned, the driving member 13 drives the movable plate 12 to descend, the grease injection head 30 approaches the bearing 40 but does not contact with the bearing, and the grease outlet holes on the side surface of the grease injection head 30 are aligned with the groove position of the bearing. The proportional valve 20 is actuated to inject a predetermined amount of grease into the channel, thereby completing the grease injection operation.

To sum up, the utility model discloses an annotate fat mechanism has shortened the proportional valve and has annotated the distance between the fat head, ensures to annotate the fat stably, annotates the fat even, and practices thrift and annotates the fat cost.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. The utility model provides a annotate fat mechanism, its characterized in that, including supporting seat (10) and set up in proportional valve (20), notes fat head (30) and the subassembly of counterpointing of supporting seat (10), wherein:

the support base (10) is provided with a platform (11) for supporting a bearing (40);

the metering valve (20) and the grease injection head (30) are connected through a grease injection channel assembly (50) and are positioned above the platform (11), and the metering valve (20) and the grease injection head (30) can be lifted relative to the platform (11) together;

the alignment assembly is configured to drive the grease injection head (30) to rotate and align with the ball pocket position of the bearing (40).

2. Grease injection mechanism according to claim 1, characterized in that the support base (10) is slidably connected with a movable plate (12) which can be lifted and lowered along it, and the metering valve (20), the grease injection head (30) and the grease injection channel assembly (50) are mounted on the movable plate (12).

3. Grease injection mechanism according to claim 2, characterized in that the support base (10) is connected with a driving member (13) for driving the movable plate (12) to move up and down.

4. Grease injection mechanism according to claim 2, characterized in that the grease injection channel assembly (50) comprises a rotating shaft (51) extending through the movable plate (12), one end of the rotating shaft (51) being in sealed connection and communication with the dosing valve (20) and the other end being in communication with the grease injection head (30).

5. The grease injection mechanism according to claim 4, characterized in that a connecting plate (52) is installed at the oil outlet of the proportional valve (20), an axle seat (53) is connected to the connecting plate (52), and the axle seat (53) is connected to the movable plate (12); the rotary shaft (51) penetrates through the shaft seat (53) to be connected with the connecting plate (52), and the proportional valve (20), the connecting plate (52) and the shaft seat (53) are connected through an O-shaped ring (54) to form a sealed space.

6. Grease injection mechanism according to claim 5, characterized in that the rotating shaft (51) and the shaft seat (53) are sealed by a labyrinth structure.

7. Grease injection mechanism according to claim 4, characterized in that the alignment assembly comprises a rotary drive and detection member (61), wherein:

the detection piece (61) is arranged at the side part of the grease injection head (30), and the detection piece (61) is configured to detect the relative position of the grease injection head (30) and a ball pocket of the bearing (40);

the rotary driving part is in transmission connection with the rotating shaft (51), and the rotary driving part is configured to drive the rotating shaft (51) to rotate by a corresponding angle according to a detection signal of the detection part (61).

8. Grease injection mechanism according to claim 7, characterized in that the detection member (61) is a photoelectric sensor.

9. The grease injection mechanism according to claim 8, wherein a mounting angle of the photoelectric sensor is adjustable.

10. Grease injection mechanism according to claim 7, characterized in that the rotary drive comprises a motor (62) arranged on the movable plate (12), a driving wheel (63) connected with an output shaft of the motor (62), and a driven wheel (64) connected with the driving wheel (63) through a transmission belt, wherein the driven wheel (64) is coaxially connected with the rotary shaft (51).