JPH059592Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a grease supply device for supplying grease to a predetermined grease supply section of a machine tool or the like.

[Conventional technology]

As a grease supply device that supplies grease to a predetermined location by operating a control lever, there is, for example, one shown in FIGS. 4 and 5. Fourth
The figure is a vertical sectional view schematically showing a conventional grease supply device, and FIG. 5 is a front view thereof. In the same figure, a grease supply device 1 has a pump body 3 including a pump that pumps grease, and a grease supply port 11 is formed in the pump body 3, and a grease cup 15 is installed in the supply port 11. It is configured to be attached by a fixing nut 13.

The pump main body 3 includes a cylinder 7 and a piston 17 mounted within the cylinder 7 so as to be able to reciprocate. The grease supply port 11 is the oil passage 9
A check valve 19 is installed on the tip side of the cylinder 7, and a grease discharge port 21 is installed downstream in the discharge direction.
A relief valve 23 is provided at the tip of the piston 17. At the rear end of the piston 17, an operating lever 25 for operating the piston 17 is swingably supported on a fulcrum 27 formed in the pump body 3.

The grease cup 15 is formed into a substantially cylindrical shape, and as shown in the figure, a fixing nut 13 is provided at the lower end thereof with a flow passage 29 through which grease can flow. A floor packing 31 is inserted into the cylinder of the grease cup 15 so as to be slidable in the longitudinal direction, and a cap 33 is fitted onto the upper end of the cup. Furthermore, a replenishment port 35 is provided at the lower end of the grease cup 15 for supplying and recovering grease from the outside.

Grease supply device 1 configured as above
is permanently installed, for example, at a grease supply point, and when the operating lever 25 is pulled in the direction of arrow A from the position shown in FIG. The liquid is extruded, the check valve 19 is pressed, and the liquid is discharged from the discharge port 21. After one stroke of grease has been discharged, the operating lever 25 is returned to the direction of arrow B. As a result, the piston 17 returns to its original position, and in the process of returning, the grease in the grease cup 15 is sucked into the cylinder 7, and the cylinder 7 of the pump body 3 is replenished with grease for the next operation. At the same time, the floor packing 31 moves toward the grease supply port 11 by that amount, and the grease in the grease cup 15 is averaged and moved to the same side.

[The problem that the idea attempts to solve]

By the way, in the grease supply device 1 configured as described above, one pump is built in one pump body 3, and one grease cup 15 is connected thereto. Therefore, there is naturally a limit to the amount of grease that can be supplied by one grease supply device 1. To replenish grease, it is sufficient to newly inject grease into the grease cup 15 from the replenishment port 35, but if the grease runs out during the grease injection operation, another injection device may be used from the replenishment port 35. Since the patient has to inject the liquid and perform the same operation again, it is not only inconvenient, but also results in a decrease in work efficiency.

On the other hand, it is possible to increase the capacity of each grease cup 15 to increase the capacity of stored grease, but this would result in the diameter being too large or too long for the pump body 3. The space factor becomes worse, and the mounting position is limited.
It may become unusable.

This invention was made in view of the actual state of the prior art as described above, and its purpose is to provide a grease supply device that has a good space factor and can increase the amount of grease depending on the location where it is used. It is in.

[Means to solve the problem]

In order to achieve the above object, this invention includes a pump body including a pump and a grease discharge port, a grease cup for storing grease connected to a grease supply port communicating with a cylinder of the pump body, and a pump drive for operating the pump. In the grease supply device, the pump body includes:
One end communicates with the grease supply port, and the other end is branched into a plurality of parts, each of which is provided with a spacer for adding a grease cup, each of which has a grease cup attachment port.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the drawings.

FIG. 1 is a front view of a grease supply device according to an embodiment, FIG. 2 is a left side view thereof, and FIG. 3 is a sectional view taken along the line -- in FIG. 2. In the same figure, the same reference numerals are attached to the components that are the same as or can be considered to be the same as those of the conventional example shown in FIGS. 4 and 5,
Duplicate explanations will be omitted as appropriate.

In these figures, the grease supply device 2 according to this embodiment has a spacer 5 for adding a grease cup provided on the upper part of the pump body 3. As shown in FIG. 1, this spacer 5 extends in a direction perpendicular to the axis of the grease cup 15, and as shown in FIG. A first oil passage 12a communicating with the supply port 11 and a second oil passage 12b branched from the oil passage 12a at a substantially right angle along the length direction of the spacer 5 are formed,
A second grease cup attachment port 37 is provided at the other end of the second oil passage 12b. In this spacer 5, the previously described grease cup 15, which corresponds to the first grease cup, is attached to the grease supply port 11 of the pump body 3 via the first oil passage 12a;
A fixing nut 13 with a long shaft length extending through 2a
According to a. In this case, the fixing nut 13a has a second
A through hole 13b is provided to communicate the oil passage 12b with the first oil passage 12a. A second grease cup 39 is attached to the second grease cup attachment port 37 by a fixing nut 41. Note that the second grease cup 39 is also similar to the first grease cup 39.
Similarly to the grease cup 15, a floor packing 43 is inserted, and a cap 45 is fitted to the upper end. All other parts are constructed in the same manner as in the conventional example.

When the grease supply device 2 is configured as described above, two grease cups are installed, and the amount of grease stored is doubled compared to the conventional device. This storage amount can be increased by increasing the number of grease cup attachment ports of the spacer 5. Therefore, just by operating the operating lever 25, grease is discharged as in the conventional case, and when returning the operating lever 25 in the direction of arrow B, grease is discharged from either or both of the two grease cups 15 and 39 to the pump body. 3 cylinder 7
Grease is replenished by suctioning into the tank.

In the above embodiment, two grease cups are provided, but it may be configured to have more than one, or a blind cover or the like may be provided at the grease installation port where no grease cup is attached. Once fitted and closed, you can freely set the optimal number of grease cups as needed.

As described above, according to the above embodiment, the dimension in the thickness direction is the same as the conventional one, so it can be installed anywhere in the width direction, and the grease cup can be attached as necessary. be able to.

[Effect of idea]

As explained above, this invention provides a grease supply device that has a good space factor and can increase the amount of grease depending on the location of use by attaching a spacer for adding a grease cup to the pump body. be able to.

[Brief explanation of drawings]

FIG. 1 is a partially sectional front view of a grease supply device according to an embodiment, FIG. 2 is a left side view thereof, and FIG.
The drawings are a sectional view taken along the line -- in FIG. 2, FIG. 4 is a vertical sectional view schematically showing a conventional grease supply device, and FIG. 5 is a front view thereof. In the figure, 2 is a grease supply device, 3 is a pump body, 5 is a spacer, 9, 12a, 12b are oil passages, 11 is a grease supply port, 15, 39 are grease cups, 25 is an operating lever, 37 is a grease cup installation It is the mouth.

Claims (1)

[Claims for Utility Model Registration] (1) A pump body including a pump and a grease discharge port, a grease storage cup connected to a grease supply port communicating with a cylinder of the pump body, and a pump drive for operating the pump. In the grease supply device, the pump body has one end communicating with the grease supply port and the other end branching into a plurality of parts, each of which is formed with a grease cup attachment port. A grease supply device characterized by being provided with a spacer for adding a grease cup. (2) A spacer for adding a grease cup, characterized in that one end communicates with the grease supply port of the pump body, the other end is branched into a plurality of parts, and a grease cup installation port is formed at each of the other ends.