JPH0740152Y2 - Lubrication oil pump - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention is applied to commercially available drums and papers.
Attached to containers such as cans or square cans, directly suck grease such as grease stored in these containers, and lubricate lubrication points of various industrial machines directly or through distribution valves. The present invention relates to a lubricating oil supply pump capable of discharging a high pressure agent in small amounts.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional lubrication oil supply pump. A lubrication oil supply pump 1 includes a dish-shaped lid portion 2, a drive unit 3 fixed to the upper surface of a central portion of the lid portion 2, and a lid. A power transmission unit 4 extending downward from the unit 2 and a pump body 5 connected to the lower end of the power transmission unit 4 are provided, and the lid unit 2 is directly detachably attached to the upper end of the container A. The pump main body 5 directly sucks lubricating oil such as grease from the lower end suction portion 10 and sends it from the delivery port 11 to a lubrication location. When replacing with a new container after use, the lubrication oil supply pump 1 is taken out from the upper end of the container A, the container A is replaced with a new container, and the lubrication oil supply pump 1 is attached to the upper end of the container again.

FIG. 6 shows another conventional example.
A container A such as a pail can is completely accommodated in a body 14 having a body, and a lid portion 2 of the lubricating oil supply pump 1 is provided at an upper end of the body 14.
It is a structure that attaches and detaches freely. When replacing the container A, the lid 2 is removed from the body 14 and the empty container A is removed.
Is taken out of the body 14, a new container is put in the body 14, and the lubricating oil pump 1 is attached to the upper end of the body 14 again.

[0004]

[Problems to be solved by the invention] Generally, in the field,
When replacing a used container with a new container filled with lubricating oil, the centralized lubrication pump removed from the container is almost directly placed on the ground.

However, in the structure in which the pump main body 5 projects downward from the lid portion 2 through the transmission portion 4 as shown in FIG.
At the time of temporary placement, the lower end surface of the pump body 5 comes into direct contact with the ground or the like, and therefore dust is likely to adhere to the suction portion 10 of the pump body, or dust may enter the pump body 5 from there. Also, for the lubrication oil pump,
A check valve is often used in the suction portion 10, and when sand, dust, etc. adhere to the lower surface of the pump body, the check valve directly adheres to the check valve or is carried along the flow path to the check valve. As a result, there is a problem in that sand and dust are caught in the valve and interfere with the normal operation of the check valve, resulting in insufficient pressurization in the cylinder chamber. In order to avoid these problems, it is necessary to strictly manage the cleanliness of the lubricating oil, and to pay close attention to prevent sand or dust from adhering to the check valve during container replacement work. Furthermore, when using various containers A of different heights, the height from the bottom plate of each container A to the pump body 5 is different, and the length of the transmission part 4 should be set to minimize the remaining amount after use. It is uneconomical to have to prepare multiple types of changed pumps.

Further, in the structure of FIG. 6, it is not necessary to prepare a plurality of types of lubrication oil pumps having different lengths of the transmission section 4 for containers having different heights, but when the container is replaced, the body 14 and the lid 2 are removed. When the centralized lubrication pump 1 is removed and placed directly on the ground, the lower end surface of the pump body 5 comes into direct contact with the ground or the like as in the case of FIG. There is a high possibility that dust will adhere to 10 or dust will enter the pump body 5 from there.

Further, when it is mounted on a shield propulsion machine (tunnel excavator) having a diameter of 2 m or less as shown in FIG. 7, the operator is forced to replace it with a middle waist. In this case, it is necessary to lift the pump body 1 of about 20 kg. It is a pain for the average person.

[0008]

[Purpose of the Invention] The purpose of the present invention is to easily replace pail cans, square cans, drum cans, etc., and also to maintain the cleanliness of lubricating oil without any strictness. It is an object of the present invention to provide a lubricating oil supply pump that can be easily carried out without worrying about adhesion and the like.

[0009]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is directed to a lid portion when put on a substantially bottomed cylindrical container containing a lubricant made of a viscous fluid such as grease. And a drive device attached to the lid portion, and a pump body which is attached to the lid portion and driven by the drive device and is inserted into the container and sucks and discharges a lubricant, It is characterized in that a rack which is brought close to the container, meshes with a pinion rotated by a manual handle, and is vertically movable by a guide member, and the lid is fixed to the rack. In order to stabilize and lift the lid smoothly, an extension is formed at the end of the outer periphery of the lid to extend below the lower end surface of the pump body and reach the ground or substrate mounting surface. A guide wheel is disposed between the guide member and the guide member.

[0010]

The operation of the lubricating oil supply pump having such a structure is as follows. The lid is lifted through the pinion and the rack by rotating the manual handle, and the container such as the pail can is replaced in that state. When the lid is lowered, the extension comes into contact with the substrate so that the lid becomes self-supporting, and the suction part of the pump body is supported at a certain distance from the ground, etc. There is no need to worry.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a vertical sectional view of a lubricating oil supply pump to which the present invention is applied, showing a state in which it is mounted on a container such as a pail can. The lubricating oil supply pump 21 includes a disc-shaped lid portion 2
2, a drive unit 23 such as a geared motor fixed to the upper surface of the lid unit 22, a transmission unit 24 extending downward from the drive unit 23 into the container A1, and a lower end of the transmission unit 24. And a pump body 25. The transmission unit 24 includes a tubular support pipe 26, a universal joint 27, and a stretchable connecting shaft 28. The output shaft 30 of the drive device 23 is interlockingly connected to the pump shaft in the pump body 25 via the universal joint 27 or the like. The support pipe 26 has a universal joint 27 provided therein, the upper end thereof is fixed to the lid portion 22, and the lower end thereof is fixed to the pump body 25.

As shown in FIG. 4, a transfer pipe 33 is connected to the upper end lubricating oil outlet 31 of the pump body 25, and the transfer pipe 33 is connected.
Extends upward, penetrates the lid portion 22, and is connected to the delivery port 38. The lubricating oil suction port 39 is formed on the lower surface of the pump body 25. Although not shown, the delivery port 38 is connected to a lubricating point of various machines via a connecting pipe or the like.

A cylindrical extending portion 42 extending downward and reaching the substrate 40 is formed on the outer peripheral end portion of the lid portion 22 in FIG. The extending portion 42 surrounds the outer periphery of the container A1 with a space, and the length L of the extending portion 42 is set to be longer than the height H1 of the container A1. Further, the lower end of the extending portion 42 extends below the lower end of the pump body 25. When the container 22 is covered with the lid portion 22, the lower end of the extending portion 42 abuts on the upper surface of the substrate 40, so that the entire lubrication oil supply pump 21 stands on the substrate 40, and the lower surface suction port 39 of the pump body 25 is It is located at a predetermined height h with respect to the bottom B of the container A1. When the length of the extending portion 42 is determined by two types, for example, a container A1 for a tall 18 kg and a container A2 for a short 16 kg such as a commercially available pail can, there are two types. The height of the other container A1 is set longer than the height H1, and when there are three or more types, the height is set to the height of the tallest container or more. Further, container fixing bolts 43 projecting into the extending portion 42 are screwed into a plurality of locations on the peripheral surface of the extending portion 42. A protrusion 44 is formed on the substrate 40 to regulate the installation position of the bottom of the container.

A rack 61, a pinion 85, and a guide member 53a are provided adjacent to and on the side of the extending portion 42 of the lid portion 22,
Rack and pinion type lid lifting device 51 consisting of 53b, etc.
Are arranged.

In FIG. 3, four guide members (angle members) 53a, 53b, 53c, 53d having an L-shaped cross section are vertically arranged so as to extend in the vertical direction, and their lower ends are welded to the support plate 54. The supporting plate 54 is attached to the substrate 4
It is fixed by bolts on 0. Guide member 53a,
53b, 53c, and 53d are opposed to each other with a space left, right, front, and rear, and are arranged so as to form a cross-shaped space as a whole. A pair of front guide members 53a, 53
A front plate 57 on the front side and a back plate 58 on the rear side are welded to b, forming a rack chamber 60 between both plates 57, 58 and the guide members 53a, 53b on the front side.

A vertically extending rack 61 is housed in the rack chamber 60 so that it can be raised and lowered. Pressing plates 65 and 66 are provided on the front and right sides of the rack 61 to prevent rattling of the rack 61, respectively. It is arranged.

A bracket 70 for supporting a wheel is fixed to the right side surface of the extending portion 42, and a pair of front and rear guide wheels 71 are rotatably supported on the bracket 60. The two guide wheels 71 abut on the pair of left guide members 53a and 53c, respectively, and roll the surfaces of the guide members 53a and 53c in the vertical direction.

Front and right side holding plates 66 of the front side holding plate 65
As shown in FIG. 1, a guide rod 75 horizontally extending forward and rightward is fixed to the right surface of each of the guide rods 75. The guide rods 75 are respectively inserted into the guide holes of the front plate 57 and the front right guide member 53b in the rod length direction. It penetrates movably, thereby preventing the pressing plates 65, 66 from moving in the vertical direction and allowing the horizontal movement adjustment. Further, a holding bolt 79 extending into the rack chamber 60 is screwed into each of the front plate 57 and the front right guide member 53b.
Respectively contact the holding plates 65 and 66 as shown in FIG. 3 to regulate the horizontal positions of the holding plates 65 and 66.

In FIG. 2, the guide members 53a, 53b,
A bearing support plate 80 is fixed to the upper ends of 53c and 53d,
A pair of left and right bearings 81 is fixed on the support plate 80, a handle shaft 83 is rotatably supported by the bearing 81, and a pinion 85 is integrally formed on the handle shaft 83. The rack 61 projects above the support plate 80 and meshes with the pinion 85. An inverted L-shaped bracket 90 is fixed to the lid portion 22, and an upper portion of the bracket 90 extends toward the elevating device 51 side and a rack 61.
It is fixed to the upper end of by bolts.

A manual handle 92 is detachably fixed to the tip of the handle shaft 83.
By rotating the handle shaft 83, pinion 85
The rack 61 is moved up and down via the bracket, and the lid 22 is moved up and down via the bracket 90.
A handle stopper pin 96 is mounted on the front surface of the upper end of the lifting device 51 via a bracket 95. The stopper pin 96 is fitted in the cylindrical holder 97 so as to be movable left and right, and can be locked to prevent the rotation of the manual handle 92 by protruding rightward.

Next, the operation will be described. When the container A1 is replaced, the container fixing bolt 43 is loosened and the manual handle 83 is rotated to raise the rack 61 via the pinion 85, thereby raising the pump 21 together with the lid 22 via the bracket 90. And stopper pin 9
6 is moved to the right and the manual handle 92 is locked to maintain the lid rising state. The empty container A1 is taken out and a new container A1 filled with lubricating oil is set on the substrate 40. The set position is defined by the protrusion 44.

Next, the stopper pin 96 is moved to the left to unlock the manual handle 83, and the lid 22 is lowered. When the lower end of the extending portion 42 contacts the substrate 40, the lid 22 and the pump 21 are stopped, and the extending portion 42 is self-supporting independently of the container A1. At this time, the pump body 2
The suction port 39 of No. 5 is kept at a constant height from the bottom surface of the container A1. Then, the container fixing bolt 43 fixes the container A1 from the surroundings.

Even when the container A2 having a different height is used, the lubricating oil supply pump 21 is independently mounted on the substrate 40 independently of the container, and the height of the lower suction port 39 of the pump body 25 is Since it is always kept constant, one size pump can be used for any height of container A1, A2.

[0024]

[Other Embodiments] The extending portion 42 is not made to have a perfect cylindrical shape,
It may be formed into a plurality of legs.

[0025]

EFFECTS OF THE INVENTION As described above, according to the present invention, (1) the guide member 5 is brought into close proximity to the container, meshes with the pinion 85 rotated by the manual handle 92, and
A rack 61 that can be moved up and down by 3a or the like is provided,
Since the lid portion 22 is fixed to the rack 61, the lid portion 22 and the pump 21 can be easily lifted by operating a manual handle, and a pail can, a square can, a drum can or the like can be easily replaced. In addition, since it is not necessary to place the lid on the ground when exchanging containers such as pail cans, strictness is not required for cleanliness management of lubricating oil, and care should be taken to prevent sand and dust from adhering to the pump body. Can be done easily without

(2) By forming an extending portion 42 extending below the lower end surface of the pump body 25 and reaching the ground surface or the mounting surface of the substrate, the outer peripheral edge of the lid portion 22 has several heights different from each other. Containers A1 and A2, for example 18 in a pail can
Even if there are Kg and 16 Kg cans, the bottom B of the containers A1 and A2
If the heights are the same, it is economical because one size of lubrication oil pump can be used for both containers.

(3) By disposing the guide wheel 71 between the extending portion 42 and the guide member, the lid part can be smoothly moved up and down by the manual handle operation.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a lubricating oil supply pump to which the inventions according to claims 1 and 2 of the present application are applied.

FIG. 2 is a plan view of the lubricating oil supply pump of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a view of the pump body viewed from the arrow IV in FIG. 1.

FIG. 5 is a schematic perspective view of a conventional example.

FIG. 6 is a schematic perspective view of another conventional example.

FIG. 7 is a vertical cross-sectional view showing one example of the usage situation of the conventional example of FIG.

[Explanation of symbols]

 22 lid part 23 drive device 24 transmission part 25 pump body 42 extension part 53a guide member 53b guide member 53c guide member 53d guide member 61 rack 85 pinion 92 manual handle 72 guide wheel

Claims (2)

[Scope of utility model registration request] 1. A lid, a lid attached to a substantially bottomed cylindrical container containing a lubricant made of a viscous fluid such as grease, a drive unit attached to the lid, and the lid. A lubricating oil pump having a pump main body attached to a portion, driven by a drive device, and inserted into a container for sucking and discharging a lubricant; and a pinion that is rotated by a manual handle in proximity to the container. A lubricating oil supply pump characterized in that a rack which is engaged with and is movable up and down by a guide member is disposed, and the lid portion is fixed to the rack. 2. An extension portion is formed at an outer peripheral end of the lid portion, the extension portion extending below a lower end surface of the pump body to reach the ground surface or a mounting surface of the substrate, and is guided between the extension portion and the guide member. The lubricating oil supply pump according to claim 1, wherein a vehicle is provided.