JPH083707Y2 - Refueling equipment for mechanical equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an oil supply device for mechanical equipment. For more information,
It is formed by including an oil supply pump that operates by utilizing relative movement between a shaft member arranged in lubricating oil and a sliding body fitted to the shaft member.

[Prior Art] In mechanical equipment, for example, a shaft member forming a driving means, a sliding body slidably fitted on the shaft member, a drive source for reciprocating the shaft member in the left-right direction, and the like are contained in lubricating oil. In many cases, an externally arranged mechanical element such as a moving body or a bush fitted on a round shaft and the sliding body are integrally connected by a connecting member.

Specifically, a lift-down mechanism of a feed bar in a so-called three-dimensional transfer press and the like are illustrated with reference to FIG.

That is, in the lift-down mechanism of the feed bars 20B and 20F shown in FIG. 2, the pair of links 10B and 10F are rotatably supported by the support shafts 11 and 11 arranged on the horizontal base line P at the interval L. In addition, both ends of the lift bar 15 are rotatably supported with the same dimension l so as to horizontally hold the lift bar 15 on both links 10B, 10F
Cylinder device 12 (cylinder device 13 is for releasing) both links
10B and 10F are formed so as to be swingable around the support shafts 11 and 11. By this swinging operation, the lift bar 15 is vertically moved (lifted down) while maintaining the horizontal state, so that the pair of feed bars 20B, 20F held by the feed guides 22, 22 is lifted down.
Therefore, the lift bar 15 has a slider as a pair of sliding members.
16B and 16F are fitted, and the feed guide 2 via these sliders 16B and 16F and a pair of lift pins (coupling members) 17B and 17F.
It is connected to 2,22.

The crank / unclamp mechanism is a means for moving the pair of feed bars 20B, 20F close to and away from the central axis Q of the press, and a pair of clamp drive shafts 33L, 33L, arranged in parallel in the depth direction of FIG. 33R, the cylinder device 35, the drive rack 36, and the clamp drive shaft 33L (33R) are fixed to the clamp drive shaft 33L (33R) in order to transmit the movement of the clamp drive shaft 33L (33R) in the horizontal direction on the paper surface to the feed bar 20B (20F). It is formed of a clamp block 31B (31F) slidably guided by a clamp drive shaft 33R (33L).

Here, since the lift down mechanism and the crank unclamp mechanism operate simultaneously, each lift pin 17
B (17F) is bushed on each clamp block 31B (31F)
It is fitted so that it can move up and down via 32B (32F).

Therefore, if the cylinder device 12 drives the parallelogram mechanism consisting of the links 10B and 10F and the lift bar 15, both feed bars 20B and 20F can be lifted and lowered vertically.
If the drive rack 36 is driven by a cam together, both feed bars 20B and 20F can be cranked and unclamped in the left-right direction. Reference numeral 14 in the drawing denotes a rod for transmitting the swing of the link 10B to the other lift-down mechanism (not shown).

Further, both feed bars 20B and 20F are formed to be reciprocally moved on the feed guides 22 and 22 in the depth direction of the drawing by an advance / return mechanism (not shown).

Lift down mechanism (12, 10B, 10F, 15, 16
B, 16F, 17B, 17F, etc.) are soaked in the lubricating oil OIL housed in the tank formed by the machine frame 9 due to the large number of sliding engagement / rotational engagement locations. . Therefore, the lift bar 15 as a shaft member and the sliding bodies 16B and 16F are also lubricated.

[Problems to be solved by the invention] By the way, each clamp block 31B, 31F (bush 32
B, 32F) etc. are not placed in the lubricating oil OIL. Machine frame 9
If the tank filled with lubricating oil OIL is full,
This is because the lubricating oil is wasted due to the overflow, the surrounding dirt, and the disadvantages such as waste oil treatment are brought about. Further, the penetrating seal mechanism of the cylinder device 35 and the like is increased, which is also disadvantageous in terms of cost.

However, a mechanical element, such as a bush, that is externally arranged
Even if oil-free bearings are used for 32B and 32F, lift pins 17B and 1
It is extremely difficult to eliminate wear and backlash caused by friction with the 7th floor, and frequent lift-down operations cannot be guaranteed. Therefore, such externally arranged mechanical elements (17B, 17F, 3
2B, 32F, etc.) also needs refueling.

Heretofore, an oil supply device has heretofore been constituted by a rotary pump arranged at a distance and a large number of oil pipes connecting the rotary pump and externally arranged mechanical elements. In the case of a press, since the externally arranged mechanical elements that require lubrication move in one to three dimensions, not only the life of the oil pipe is short and the cost is high, but also the functions and layout of the mechanical equipment are limited or sacrificed. There was a problem of adding.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a low-cost and small-sized oil supply device for mechanical equipment capable of performing a reliable and stable oil supply by cleaning an oil pipe or the like.

[Means for Solving the Problem] The present invention focuses on the fact that there is abundant lubricating oil immediately below the externally arranged mechanical element, and the shaft member and the sliding body fitted to the lubricating oil make relative motion. By utilizing the relative motion, a new oil pump is formed and an oil pipe is formed by using a connecting member to achieve the above-mentioned object.

That is, the externally disposed mechanical element and the shaft member disposed in the lubricating oil below the externally disposed mechanical element are slidably fitted to the shaft member and the sliding member is integrated with the sliding member. An oil supply device for mechanical equipment, which is connected via a connecting member to a pair of packings having a check valve function formed of an elastic material on both inner surfaces of the sliding body as asymmetrical,
An oil supply passage is formed in the sliding body and the connecting member, the space being formed between the inner surface of the sliding body and the outer surface of the shaft member between the packings and the externally arranged mechanical element. To do.

[Operation] According to the present invention, when the shaft member and the sliding body relatively move in one direction, the other packing mounted on the sliding body exerts a check valve function, and the one packing slides the lubricating oil. It pumps so as to forcefully flow into the gap between the inner surface of the moving body and the outer surface of the shaft member. If it moves relative to the other direction, it will have the opposite effect.

Therefore, the lubricating oil forcedly flown into the gap ascends the oil supply path provided in the sliding body and the connecting member integrated with the sliding body, and is supplied to the externally arranged mechanical element.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

 FIG. 1 is a vertical sectional view.

The mechanical equipment in this embodiment is the same as the three-dimensional transfer press shown in FIG. 2 above. Therefore, description of the same parts will be omitted. Further, in FIG. 1, the same parts are designated by the same reference numerals.

Further, in this embodiment, the externally arranged mechanical element is the bush 32B (32F) mounted on the clamp block 31B (31F).
F), the shaft member is the lift bar 15, and the sliding body is the slider 16B (16
F), the connecting member is assumed to be formed of lift pins 17B (17F). That is, the present oil supply device includes an externally arranged machine element [32B (32F)] and a shaft member (15) arranged in the lubricating oil OIL below the externally arranged machine element, the shaft member (15 ) Sliding body (16B (16F))
And a sliding member and a connecting member [17B (17F)] that are integrated with the sliding member, and are a lubrication device for mechanical equipment (three-dimensional transfer press), which are roughly classified into a pair of packings 1A, 1
B, the clearance C, and an oil supply passage 5 that communicates the externally arranged mechanical element [32B (32F)]. Note that FIG. 1 shows only the sliding body (16B) on the left side of the paper in FIG.

Specifically, as shown in FIG. 1, the pair of packings 1A and 1B are ring-shaped with a so-called lip 2 formed of synthetic resin, which is an elastic material, in the shape of a dogleg. Are asymmetrically mounted in the recesses 161A and 161B. That is, when the slider 16B moves relative to the lift bar 15 in the left direction (arrow A direction) in FIG. 1, the packing 1B exerts a check valve function,
When 1A works so as to open the lubricating oil in the machine frame 2 and the gap C between the inner surface of the slider 16B and the outer surface of the lift bar 31 so as to communicate with each other, and when relatively moving in the right direction (arrow B direction), It is installed so as to operate in reverse.

Here, the check valve function means that the lip 2 has packing 1A (1
Due to the elastic property of B), it is exerted when it is pressed against the outer peripheral surface of the lift bar 15, and exerts an opening function when the inflow lubricating oil separates the lip 2 from the outer peripheral surface. Here, the sliding body (16B) for the shaft member (15)
A new refueling pump that pressurizes by the relative movement of the is formed. In addition, the slider 16B is used to facilitate the inflow of lubricating oil.
Tapered openings 7A and 7B are provided at both ends of the.

On the other hand, the oil supply passage 5 is provided on the slider 16B and the lift pin 17B which is integral with the slider 16B, and is formed so as to communicate the above-mentioned gap C between both packings 1A and 1B with the bush 32B. It should be noted that a plurality of branch roads 5-1 and 5-
2, ... are provided.

In such an embodiment, as long as the lift down mechanism and / or the crank unclamp mechanism is operating, that is, if the slider 16B and the lift bar 15 move relative to each other in the left-right direction in FIG. 1, the packings 1A and 1B will be separated from each other. Alternately demonstrates check valve function and open function. Therefore, the lubricating oil OIL, which has been forced into the gap C, is supplied to the bush 32B, which is an externally arranged mechanical element, through the oil supply passage 5.

Therefore, according to this embodiment, the pair of packings 1A and 1B having the check valve function are asymmetrically mounted on both inner surfaces (161A and 161B) of the sliding body (16B) so as to form an oil supply pump and connected. Since the member (17B) is provided with the oil supply passage 5 that communicates between the gap C formed between the member (17B) and the externally arranged mechanical element (32B), the shaft member (15) Lubricating oil OIL can be reliably and stably lubricated smoothly to the upper mechanical element (32B) by utilizing the relative movement of the sliding body (16B) with respect to.

Further, the pressure increase of the lubricating oil OIL uses the original kinetic force of mechanical equipment such as lift down or crank unclamp, and the oil supply passage 5 is provided in the connecting member (17B) which is a component of the mechanical equipment. Therefore, the conventional rotary pump, oil pipe and other equipment itself, piping layout, maintenance and inspection, etc. can be eliminated, and cost reduction and long-term operation can be guaranteed.

Also, since the pair of packings 1A and 1B are made of a synthetic resin with a simple shape, they are inexpensive and easy to install and replace on the sliding body (16B). Since it is filled just below (32B), it is possible to obtain the necessary and sufficient hydraulic pressure.

Furthermore, since it does not require a conventional long oil pipe or special oil tank, cost reduction can be achieved from this point as well.
No external clogging problem and externally arranged mechanical element (32B)
It is easy to recover from and can be reused.

[Advantage of the Invention] The present invention has a pair of packings formed of an elastic material and having a check valve function, which are asymmetrically mounted on both inner surfaces of the sliding body, and the inner surface of the sliding body between the packings is attached to the sliding body and the connecting member. Since a gap is formed between the shaft member and the outer surface of the shaft member and an oil supply path that connects the externally arranged mechanical element to each other, the pressurization / oil supply operation is performed by using the relative motion of the sliding body with respect to the shaft member. it can. Therefore, conventional equipment such as rotary pumps and oil pipes, equipment damage, oil pipe damage and clogging, equipment wear, etc. can be eliminated, and stable and reliable lubrication can be guaranteed over a long period of time with reduced cost. It is expensive.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a view showing a conventional mechanical equipment and an oil supply device thereof. 1 (A, B) ... packing, 2 ... lip, 5 (5-1, 5-2)
... Oil supply passage, 10 (A, B) ... Link, 11 ... Support shaft, 12 ... Lifting cylinder device, 13 ... Release cylinder device, 14 ... Transmission rod, 15 ... Lift bar (shaft member), 16 (B, F) )… Slider (sliding body), 17 (B, F)… Lift pin (connecting member), 2
0 (B, F)… Feed bar, 22… Feed bar guide, 31
(B, F) ... Clamp block, 32 (B, F) ... Bush (externally arranged mechanical element), 33 (L, R) ... Clamp drive shaft and other guide rod.

Claims (1)

[Scope of utility model registration request] 1. A shaft member is disposed in a lubricating oil below an externally arranged machine element having an oil supply location, and a sliding body is fixedly provided at a lower portion of the externally arranged machine element, and the sliding body is provided. A lubrication device for a mechanical equipment, which is fitted to a shaft member so as to be reciprocally movable in the axial direction, wherein a pair of packings made of elastic material and having a check valve function are provided on both inner sides of the opening of the sliding body. The sliding member is mounted so that the direction in which the lubricating oil adhering to the shaft member is taken in with the reciprocating movement of the sliding member is taken in, and is provided between both packings and is formed by the sliding member and the shaft member. An oil supply device for a machine facility, comprising an oil supply passage extending from the gap provided to the oil supply location of the externally arranged machine element.