KR200208374Y1 - A device for pumping grease by power of rotating shaft - Google Patents

Abstract

The present invention relates to a grease feeder using power of a rotating shaft, and provides grease to a predetermined place while operating by receiving power from a rotating shaft installed in a facility to supply grease. It satisfies the stability and simplicity of the structure shown in the manual grease feeder.

The configuration for this purpose, the power transmission shaft 16 to receive a rotational force from the rotary shaft 10 of the installation to rotate; An inclined rotating body (20) having a rail (24) providing a circular path and fixed to the power transmission shaft (16) to have a predetermined angle of inclination; A driving unit 30 mounted to the rail 24 to be capable of traveling; A piston (52) mounted on a piston rod (50) connected to the driving unit (30) via a connecting link (38) and having a fluid passage (52a) to allow one-way fluid flow due to a pressure difference; A main tank 60 accommodating the piston 52 to operate in a direction parallel to the power transmission shaft 16 and having a grease discharge pipe 62; And an auxiliary tank 70 connected to the main tank 60 by a connection hose 64 having a check valve 64a and in which internal grease is pressurized by the elastic coil spring 75.

Description

A device for pumping grease by power of rotating shaft}

The present invention relates to a grease feeder using power of a rotating shaft, and more particularly, grease is supplied to a predetermined place while receiving power from a rotating shaft installed in a facility to supply grease. The present invention relates to a grease feeder that uses the power of a rotating shaft to simultaneously satisfy the convenience and stability and simplicity of the structure shown in the manual grease feeder.

In general, industrial facilities such as steel mills are equipped with a grease feeding device. By supplying grease to the required parts, the grease is reduced to reduce friction generated between the components so that the components can behave more smoothly and prevent wear. This is to improve the life of the components.

Conventional apparatuses known as grease feeders are as shown in Figs. 1 and 2, which are driven by an electric grease feeder 110 and a manual grease feeder 120 depending on where power is supplied for grease feeding. It is rough.

The electric grease feeder 110 shown in FIG. 1 includes a main tank 112 having a main pump 111 and an auxiliary pump 113 connected to the main tank 112 via a connection hose 114. It is operated by supplying power to the auxiliary tank 115, the distribution valve 116 is provided in the main tank 112 to distribute the grease to a predetermined location, and the main pump 111 and the auxiliary pump 114 The controller 117 is configured to control the distribution valve 116, and inputs a program to the controller 117 in advance so as to operate automatically, or the driver operates an operation button provided in the controller 117. It operates to supply grease to a predetermined place.

The manual grease feeder 120 shown in FIG. 2 is provided with a main tank 122 having a main handle 121 for pumping, and an auxiliary hose 123 for pumping, and connected to the main tank 122 with a hose 124. The auxiliary tank 125 and the distribution tank 126 which is provided in the main tank 122 to distribute the grease to be supplied to a predetermined position, the operator directly handles the main handle 121 as needed. The grease is supplied to a predetermined position by moving up and down.

However, the electric grease feeder 110 is complicated and precise in its components to operate to feed grease, so when it is mounted on a facility that generates shock and vibration, such as a ceiling crane, its failure occurs frequently and is difficult to maintain and repair. It requires time and labor, and since the manual grease feeder 120 supplies grease by manipulating the handles 121 and 123 by hand, a separate operator is required for grease feeding and ceiling crane and When installed in a facility moving from the height, there is a risk of exposure to safety accidents, such as falling, there are various problems, such as difficult to supply a stable grease to reduce the life of the facility.

The present invention has been devised to solve such a conventional problem, and its purpose is to provide a stable grease supply interlocked with the operation of the facility by receiving power from the rotating shaft of the facility to supply grease, and to provide a separate power source. It is to provide a grease feeding device using the power of the rotating shaft which is not necessary, the structure is simplified.

1 is a block diagram showing an electric grease feeding apparatus according to the prior art;

2 is a block diagram showing a manual grease feeding device according to the prior art;

3 is a perspective view of the grease sheet feeding apparatus according to the present invention as a whole;

Figure 4 is an exploded perspective view showing in detail the main portion of the device of the present invention;

Figure 5 is a cross-sectional view showing the shape and coupling form for the piston rod and the main portion of the piston of the present invention;

Figure 6 is a perspective view showing a state in which the tank of the present invention is mounted on the facility;

Figure 7 is a detailed view for explaining the connection configuration and operation of the inclined rotating body and its upper and lower components of the present invention;

8a and 8b is an operational state showing the appearance of grease supplied in the main tank of the present invention;

Explanation of symbols on the main parts of the drawings

10: rotation axis 12, 14: bevel gear

16 power transmission shaft 17 connector

18: adjusting screw 20: inclined rotating body

22: body 24: rail

26: cap 30: driving part

35: wheel 38: connection link

40: connecting rod 44: adjusting screw

50: piston rod 50a, 50b: fluid passage

51 hollow portion 52 piston

52a: fluid passage 53: ball

54: elastic coil spring 59: opening and closing plate

60: main tank 62: grease discharge pipe

64: connecting hose 70: auxiliary tank

74: piston 75: spring

The present invention as a technical configuration for achieving the above object, the power transmission shaft for receiving a rotation force from the rotation axis of the installation; An inclined rotating body having a rail for providing a circular path and fixed to have a predetermined angle of inclination with the power transmission shaft; A traveling part seated on the rail to be capable of traveling; A piston mounted to a piston rod connected to the driving unit via a connecting link and having a fluid passage allowing one-way fluid flow due to a pressure difference; A main tank accommodating the piston therein to operate in a direction parallel to the power transmission shaft and having a grease discharge pipe; And an auxiliary tank connected to the main tank by a connection hose having a check valve and having an internal grease pressurized by an elastic coil spring.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a perspective view showing a state in which the grease feeder according to the present invention is mounted so as to operate by receiving power from the rotating shaft, a facility to install a device such as a ceiling crane (hereinafter, 'ceiling crane' collectively A rotating bevel gear 12 mounted at a predetermined position, and a driven bevel gear 14 that rotates in engagement with the driving bevel gear 12.

The driven bevel gear 14 is fixed to one end of the power transmission shaft 16, the power transmission shaft 16 is supported by a bearing block (16a) bearing a built-in frame of the ceiling crane (not shown) Mounted on, the bearing block (16a) performs a normal function, that is, to prevent the power transmission shaft 16 from moving in the longitudinal direction while supporting the rotation so that it can be made smoothly. Of course, the bearing block 16a may be installed in a plurality of places in the longitudinal direction of the power transmission shaft 16, the longitudinal direction of the power transmission shaft 16 is preferably set in the vertical direction.

The inclined rotary body 20 is connected to the other end of the power transmission shaft 16, that is, the upper end thereof, which will be described in more detail with reference to FIGS. 4 and 7.

Figure 4 is an exploded perspective view showing in detail the main portion of the device of the present invention, Figure 7 is a detailed view showing the connection configuration and operation of the inclined rotor and its upper and lower components of the present invention, On both sides of the upper end of the transmission shaft 16, a connecting piece 17 having a predetermined length extending integrally with the outer diameter side is integrally formed, and an adjustment screw 18 with through holes 17a formed vertically through each end of the connecting piece 17. ), And each of these adjusting screws 18 is fixed to the connecting piece 17 by an adjusting nut 18a fastened to the adjusting screw 18 so as to be positioned above and below the connecting piece 17. In addition, the upper end of the adjustment screw 18 forms a spherical connecting portion 18b, and the connector 19 having the through hole 19a in the horizontal direction protrudes integrally at the center of the upper end of the power transmission shaft 16. Is formed.

The inclined rotary body 20 has a disk-shaped body 22 having a predetermined outer diameter as shown in Figure 7, the circumferential continuous rail 24 is formed integrally on the upper edge of the body 22 The rail 24 is composed of a central inner rail 24a and an outer outer rail 24b of the body 22, and the inner rail 24a and the outer rail 24b are positioned parallel to each other at a predetermined interval apart. Each of these inner rails 24a and outer rails 24b extends a predetermined length vertically to the upper portion of the body 22, and its ends are perpendicular to the opposite outer rails 24b and the inner rails 24a. It has a bent shape. The body 22 integrally forms a clavicle connector 23 at the center of the lower surface thereof, and the connector 23 is a connector 19 of the power transmission shaft 16 via a pin 23a. It is rotatably connected to).

In addition, the cap 26 is fixed to a plurality of lower surfaces of the body 22 by bolts 27 and the like, and the place where the cap 26 is installed is predetermined as shown in FIG. It is set to a place located immediately above the through hole 17a formed in the connecting piece 17 of the power transmission shaft 16 in the inclined state. The cap 26 forms a hemispherical protrusion 26a which is convex toward the lower side of the body 22 toward the bottom in the center thereof, and has a hemispherical groove 26b on the inner surface thereof, and the protrusion 26a has a predetermined length. The slit groove 26a is formed. Of course, the width of the groove 26b is equal to or slightly larger than the outer diameter of the adjustment screw 18. A hemispherical groove 22a corresponding to the groove 26b of the cap 26 is formed on the lower surface of the body 22, and the groove 22a of the body 22 and the groove of the cap 26 are formed. (26b) is combined to form a spherical space equal to or slightly larger than the spherical connecting portion 18b of the adjusting screw 18, and the spherical connecting portion 18b of the adjusting screw 18 is accommodated in this spherical space.

A cutout 24c is formed at a predetermined position of any of the inner rail 24a and the outer rail 24b constituting the rail 24, and the present invention provides the cutout 24c at the outer rail 24b. It can be seen that. The driving unit 30 to be described later is inserted through the cutout 24c so as to travel in a space between the inner rail 24a and the outer rail 24b, and the cutout 24c is an outer rail ( It is closed by a cover 28 formed in the same size and shape as 24b).

The traveling portion 30 has a clavicle-shaped body 32, the shaft 34 is fitted to the lower end of the body 32, the wheel 35 made of a bearing is mounted on both ends of the shaft 34 do. The lower end of the link link 38 is mounted to the upper end of the body 32 of the clavis through the pin 36, and the upper end of the link link 38 via the pin 39 is connected to the rod 40. The lower end of is mounted. The adjusting screw 44 is fitted to the upper end of the connecting rod 40 by screwing in the longitudinal direction, and the adjusting screw 44 forms threads 44a and 44b in different directions on both sides, and these Nuts 45 are fitted to the threads 44a and 44b, respectively. In addition, the rotation angle of the connection link 38 and the connection rod 40 is limited by the stoppers 91 and 92.

The upper end of the adjustment screw 44 is fitted by screwing in the longitudinal direction to the lower end of the piston rod 50, the piston 52 is fixed to the upper end of the piston rod 50, the piston 52 is It is fitted to move up and down inside the main tank 60 made of a cylindrical shape.

The shape and coupling form of the piston rod 50 and the piston 52 are shown in more detail in FIG. 5, where the upper end of the piston rod 50 is located above the upper end of the piston 52. From the lower portion of the piston 52 to the lower position of the continuous continuous hollow portion 51 is formed, the predetermined position of the hollow portion 51 is formed ball seat seat 51a, At the upper portion of the sheet 51a, a ball 53 having a smaller diameter than the hollow portion 51 is placed. And, the ball 53 is seated on the seat 51a by the elastic coil spring 54 is mounted in a contracted state, the degree of shrinkage of the elastic coil spring 54 is adjusted with a tight plate 55 at the tip Externally adjustable by screws 56. Of course, when the ball 53 is seated on the seat 51a, the flow of fluid passing through the seat 51a is blocked. In addition, fluid passages 50a and 50b are respectively formed on the upper and lower sides of the piston 52 with respect to the hollow part 51. Reference numeral 58 denotes a sealing O-ring mounted on the outer surface of the piston 52.

In addition, the piston 52 is formed with a fluid passage (52a) penetrated up and down, the opening and closing plate 59 is provided to open and close the fluid passage (52a), the opening and closing plate 59 has a hydraulic pressure lower It is configured to block the fluid passage (52a) when acting on, while opening the fluid passage (52a) when the hydraulic pressure acts on the top. To this end, it is preferable to install a stopper 59b such that one side of the opening and closing plate 59 is rotatably mounted around the pin 59a, and the opening and closing plate 59 is opened at a predetermined angle.

The main tank 60 is at least a shape within the stroke distance that the piston 52 operates in a hollow cylinder cylindrical shape having an inner diameter size the same size as the outer diameter of the piston 52, the upper and lower ends respectively cover 61a It is a sealed structure that is isolated from the outside by the (61b). A lower end side of the main tank 60 is formed with a grease discharge pipe 62 for supplying grease in the main tank 60 to a required location, and on one side, a pressure gauge 63 is mounted to increase the pressure of the inner grease. Allow me to measure.

The auxiliary tank 70 is connected to the upper cover 61a of the main tank 60 via a connecting hose 64 having a check valve 64a, and the grease of the auxiliary tank 70 is connected to the main tank 60. It is to be able to be supplied to the upper portion of the piston (52), the auxiliary tank (70) is preferably made of a hollow hollow cylindrical shape of the lower portion and the upper end is also closed by the cover (72). In addition, a piston 74 is installed inside the auxiliary tank 70, and the piston 74 is provided with a predetermined elastic force to be lowered by the elastic coil spring 75 installed thereon, and the auxiliary tank ( On the lower side of 70), a nipple 76 for filling grease using a grease gun or the like is installed.

6 shows an example in which the main tank 60 and the auxiliary tank 70 are mounted on the frame 80 of the overhead crane, which is a separate bracket 82, a semi-circular strip 84, a bolt 86, or the like. It shows that the main tank 60 and the auxiliary tank 70 can be mounted to the frame 80 by the components, and the present invention is not limited to this embodiment.

In order to supply grease to the required location of the facility by using the device of the present invention having such a configuration, the device is installed at a predetermined location of the facility, and the auxiliary tank 70 is filled with grease. And, by moving the upper adjustment screw 56 of the piston 52 provided inside the main tank 60 up and down, the grease supply pressure is prevented from becoming excessively large. This action will be described later.

The grease filled in the auxiliary tank 70 is the piston 52 of the main tank 60 through the connection hose 64 at a predetermined pressure due to the piston 74 to be lowered by the elastic repulsive force of the spring 75. ) Is supplied to the upper side.

The device of the present invention starts the operation by the rotation of the rotary shaft 10 is driven together with the equipment and on the contrary, the operation is terminated by the rotation of the rotary shaft 10 is stopped, if the rotary shaft 10 is rotated, the rotary shaft The rotational power of 10 is transmitted to the power transmission shaft 16 through the bevel gears 12 and 14, so that the power transmission shaft 16 rotates by the rotation of the rotation shaft 10.

Rotation of the power transmission shaft 16 is transmitted to the inclined rotating body 20 through the clavicle-type connector 17 installed at the upper end, the inclined rotating body 20 is in the axis of the power transmission shaft 16 With a predetermined angle inclined with respect to the vertical reference plane, this inclination is a main factor for determining the amount of grease discharged from the main tank 60, and therefore it is necessary to adjust it appropriately by the adjusting screw 18. That is, as the angle increases, the discharge per unit time for the grease discharged from the main tank 60 increases. On the contrary, as the angle decreases, the discharge per unit time for the grease discharged from the main tank 60 decreases. . In order to adjust the angle of the inclined rotating body 20, the adjusting screw 18 is rotated by adjusting the adjusting nut 18a which fixes each of the adjusting screws 18 to the connecting pieces 17 of the power transmission shaft 16. It is possible to move the up and down direction, in which the inclined rotating body 20 is rotated about the pin (23a) while the inclination angle is increased or decreased, and the adjustment nut (18a) is determined to be a predetermined angle The state is maintained when the adjusting screw 18 is fixed to the connecting piece 17 by rotating.

The driving unit 30 is located at a predetermined position with respect to the rail 24 of the inclined rotating body 20 rotated by the power transmission shaft 16, and this position is caused by the rotation of the inclined rotating body 20. Displace in up and down direction. That is, corresponding to the position of the rail 24 of the inclined rotating body 20, the driving unit 30 and the connecting link 38 and the connecting rod 40 supporting the same also perform a predetermined operation. It demonstrates in detail with reference to 7.

The traveling part 30 is blocked from moving in the circumferential direction of the inclined rotating body 20, which is when the inclined rotating body 20 rotates by the power transmission shaft 16 While keeping at the installation position, only the wheel 35 provided on the traveling portion 30 rotates.

In addition, since the inclined rotating body 20 is installed to have an inclination of a predetermined angle (hereinafter, simply expressed as θ) at the same time as the rotation, the position of the rail 24 passing through the traveling part 30 is raised and Repeat the descent. That is, the inclination of the inclined top surface of the inclined rotating body 20 passing through the running part 30 maintaining the installed position is repeated the process of continuously changing from + θ to -θ, which is the inclined rotor 20 The state of the traveling part 30 accommodated in the rail 24 of () also changes continuously from + (theta) to-(theta).

This is inclined so that the state has an angle of + θ when the driving part 30 is at the maximum descending state as shown by the solid line in FIG. 7, and the upper end of the clavis-type body 32 is in power transmission accordingly. As far as possible in the radial direction with respect to the center line of the axis 16, and as shown by the dashed-dotted line in FIG. Correspondingly, it means that the upper end of the clavicle-shaped body 32 is as close as possible to the radial direction of the centerline of the power transmission shaft 16, the connection in response to the upper position of the clavis body 32 The link 38 and the connecting rod 40 also move up and down the piston rod 50 while behaving to have a predetermined displacement.

The upward and downward motion of the piston rod 50 is transmitted to the piston 52 to raise and lower the piston 52. When the piston 52 is raised, the upper pressure of the piston 52 is higher than the lower pressure. Due to its size, as shown in FIG. 8A, the opening and closing plate 59 rotates to open and open the fluid passage 52a formed in the piston 52, whereby the grease that was on the upper side of the piston 50 is discharged from the piston 50. Is located at the bottom. On the other hand, the seat 51a blocked by the ball 53 is kept closed and the flow of grease through the portion is blocked.

After ascending by a predetermined stroke in the above state, the piston 52 starts to descend, and at this time, since the lower pressure is greater than the upper pressure of the piston 52, the opening and closing plate 59 is shown in Fig. 8B. ) Rotates and closes the fluid passage 52a formed in the piston 52, thereby increasing the pressure of the grease at the lower side of the piston 50 and supplying it to the required position through the grease discharge pipe 62. Of course, during the lowering operation of the piston 52, the ball 53 has a force to fall from the seat 51a by the pressure formed in the lower grease of the piston 52, and the seat (by the elastic coil spring 54). When the force to be in close contact with 51a coexists, and the pressure of the lower grease of the piston 52 does not exceed the set pressure, the ball 53 is kept in close contact with the seat 51a, while the piston When the pressure of the lower grease of the 52 exceeds the set pressure, the ball 53 falls from the seat 51a and the lower grease of the piston 52 forms the fluid passage 50b formed in the piston rod 50. ), The hollow part 51 and the fluid passage 50a are moved upwards of the piston 52, which is a facility of supplying high pressure grease so that the pressure of the grease supplied through the device does not exceed the set pressure. Prevent breakage of components.

Then, the grease exiting the main tank 60 by the up and down movement of the piston 52 is filled by the grease of the auxiliary tank 70 supplied through the connecting hose 64 having the check valve 64a. .

As described above, according to the grease feeding apparatus using the power of the rotating shaft according to the present invention, since grease is supplied to a predetermined place while receiving power from the rotating shaft installed in the equipment to supply grease, the grease feeding apparatus is shown in the conventional electric grease feeding apparatus. The paper has the effect of simultaneously satisfying the convenience and stability and the simplicity of the structure shown in the manual grease feeder.

Claims (1)

A power transmission shaft 16 that receives rotational force from the rotation shaft 10 of the facility and rotates the power transmission shaft 16; An inclined rotating body (20) having a rail (24) providing a circular path and fixed to the power transmission shaft (16) to have a predetermined angle of inclination; A driving unit 30 mounted to the rail 24 to be capable of traveling; A piston (52) mounted on a piston rod (50) connected to the driving unit (30) via a connecting link (38) and having a fluid passage (52a) to allow one-way fluid flow due to a pressure difference; A main tank 60 accommodating the piston 52 to operate in a direction parallel to the power transmission shaft 16 and having a grease discharge pipe 62; And, The auxiliary tank 70 is connected to the main tank 60 by a connecting hose 64 having a check valve 64a and the inner grease is pressed by the elastic coil spring 75. Grease Feeder.