JP2516682B2 - Hydraulic pipe joint mounting structure - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for guiding hydraulic oil from a hydraulic source such as a power cylinder in any direction.

2. Description of the Related Art In the case of various commonly used hydraulic devices, hydraulic oil obtained from an actuator as a hydraulic source is guided to an external pipe body through a joint, and this pipe body is connected to a predetermined hydraulic device. The adopted piping structure is adopted.

Regarding the above, for example, according to the maintenance manual (E-R13 type, E-KRS13 type) issued by Nissan Motor Co., Ltd. in March 1989, as shown in FIG. While the hydraulic oil supply boss 3 is disposed at a predetermined position of the same and the rotation preventing brackets 5 and 5 are integrally attached to the boss 3, the substantially cylindrical shape in which the pins 7a and 7a are projectingly provided on the side portions The pins 7a and 7a of the joints 7 and 7 of the bracket
The hydraulic oil supply ports 10a, 10b and the joints 7, 7 which are fitted in the U-shaped recesses 5a, 5a formed in the 5, 5 and are opened on the upper surface of the boss 3 through the gaskets 8, 8 are formed. The joints 7 and 7 are polymerized, and further the gaskets 11 and 11 and the eyebolts 13 and 13 are used from above to connect the joints 7 and 7 to the hydraulic oil supply ports 10a and 1 of the boss 3.
The structure which is separated and fixed to 0b is described. Pipes 15, 15 for supplying hydraulic oil to hydraulic equipment are connected to the other surface of the joints 7, 7.

With such a configuration, the hydraulic oil obtained from the hydraulic actuator 1 serving as the hydraulic pressure source is supplied from the pair of hydraulic oil supply ports 10a and 10b formed in the boss 3 to the joints 7 and 7.
Also, based on the fitting between the U-shaped recesses 5a, 5a formed in the brackets 5, 5 and the pins 7a, 7a while being introduced into the pipe pair 15, 15 via the eyebolts 13, 13, the joint 7, The action of preventing rotation of 7 is obtained.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a conventional hydraulic pipe joint configuration, the direction of the pipe pairs 15, 15 derived from the hydraulic actuator 1 is constant, and the pipe pairs 15, 15 are fixed. Since the direction of deriving the hydraulic pressure cannot be changed freely, there has been a problem that the degree of freedom in designing the hydraulic equipment is reduced.

That is, since the rotation preventing brackets 5, 5 attached to the hydraulic oil supplying boss 3 are integrally formed with the boss 3, the pipes 15, 15 are drawn out in the illustrated state, that is, the hydraulic actuator. Therefore, it is limited to the direction substantially perpendicular to 1. Therefore, the degree of freedom in terms of the layout of hydraulic equipment is reduced, and the pipes 15,1
If you want to pull out 5 in the other direction,
Since it is necessary to separately create bosses having different attachment positions, there is a problem that the number of parts increases and the cost increases.

Therefore, the present invention can solve the problems that the conventional hydraulic piping joint structure has, increase the degree of freedom in designing hydraulic equipment, and can also support other hydraulic equipment having different specifications. The purpose is to provide a joint mounting structure.

Means for Solving the Problems In order to achieve the above object, the present invention provides a hydraulic oil supply boss which is arranged in a hydraulic power source and has a hydraulic oil supply port formed on the upper surface thereof, and the hydraulic oil supply boss. A plate-shaped bracket that is detachably arranged in the area surrounding the supply boss and has one or more recesses formed on the upper edge and a rotation-preventing pin on the side that protrudes and operates. An oil pipe is connected to the joint, and a connecting member for connecting the joint to the hydraulic oil supply boss is provided, and a pin and a pipe for preventing rotation of the joint are provided on the plate bracket. The joint is connected to the hydraulic oil supply boss using the connecting member in a state in which the recess formed in the edge portion is fitted.

With such a configuration, when connecting the hydraulic oil supply pipes from the hydraulic power source to various hydraulic devices through the joints,
A plate-shaped bracket having a single or a plurality of recesses formed on the upper edge is attached to the portion surrounding the hydraulic oil supply boss arranged in the hydraulic power source, and the rotary bracket projecting on the side of the joint is attached. The prevention pin and the hydraulic fluid tube connected to the joint are placed on the hydraulic fluid supply boss so as to fit into the recess of the plate bracket, and the joint is bossed using the coupling member. By connecting the joint to the hydraulic oil supply boss, the joint can be connected to the hydraulic oil supply boss with the rotation prevented.

The position of the recess formed on the upper edge of the plate bracket is arbitrary, and the plate bracket is detachable from the hydraulic oil supply boss. Considering the above, the position of the recess can be changed by changing the direction of the bracket, and
By preparing in advance plate-shaped brackets having different recess positions, it is possible to change the pipe pair lead-out direction of the hydraulic oil simply by replacing the bracket with another bracket.

Examples Hereinafter, various examples of the mounting structure for the hydraulic piping joint according to the present invention will be described in detail by assigning the same reference numerals to the same components as those of the conventional configuration.

1 and 2 show a first embodiment of the present invention,
In the figure, 1 is a hydraulic actuator as a hydraulic source,
A hydraulic oil supply boss 3 is arranged at a predetermined portion of the hydraulic actuator 1. On the upper surface of the boss 3, hydraulic oil supply ports 10a and 10b are formed in advance.

A plate-shaped bracket 17 is detachably arranged in a portion surrounding the above-mentioned hydraulic oil supply boss 3. That is, the bolt 19 from the side of the plate bracket 17 is attached to the plate bracket.
17 and the boss 3 are penetrated and the nut
It is screwed and fixed using 21.

The plate-shaped bracket 17 has an elliptical shape in plan view and a shape having a cutout portion 17d at one end,
Moreover, the recesses 23a, 23 are provided at appropriate positions on the upper edge of the plate-shaped bracket 17.
b and 23c are formed.

As will be described later, a pin for preventing rotation of the joint is fitted in the recesses 23a, 23c, and a pipe of hydraulic oil connected to the joint is fitted in the other recess 23b.

On the other hand, 25 is a first joint that holds a substantially cylindrical shape, 27
Is a second joint, and rotation preventing pins 25a and 27a are respectively provided on the side portions of the joints 25 and 27 so as to project therefrom. Tube 2
9,31 are consolidated.

In the case of this example, the tubular body 29 connected to the first joint 25
The angle θ ₂ between the tube body 31 connected to the second joint 27 and the pin 27a is set to be larger than the angle θ ₁ between the pin 27a and the pin 25a (see FIG. 2).

33 and 35 are eye bolts, 37 and 41 are gaskets, and 45 is a cover member.

According to the first embodiment, the pin 25a protruding from the first joint 25 is fitted into the recess 23c formed in the upper edge of the plate bracket 17, and is connected to the first joint 25. The first joint 25 is placed on the supply port 10a formed in the upper surface of the boss 3 with the tubular body 29 fitted in the recess 23b of the plate bracket 17, and then the eyebolt 33 is used. The first joint 25 together with the gasket 41 as shown by the arrow A.
By screwing into a, the hydraulic actuator 1 and the pipe body 29 are connected via the first joint 25.

Next, the pin 27a projecting from the second joint 27 is fitted into the recess 23a formed in the upper edge of the plate bracket 17, and the tubular body 31 is fitted into the recess 23b of the plate bracket 17. In this state, the second joint 27 is placed on the supply port 10b formed in the upper surface of the boss 3 and then the eyebolt 35 is used to move the second joint 27 as shown by the arrow B.
27 together with gasket 37, supply port 10b of boss 3
The hydraulic actuator 1 and the pipe body 31 are connected to each other via the second joint 27 by being screwed into.

It should be noted that the hydraulic actuator 1 is provided with other bosses 3b, 3c for supplying hydraulic oil integrally with the rotation preventing brackets 5, 5. The U-shaped recesses 5a, 5a are formed in the rotation preventing brackets 5, 5 similarly to the conventional example (Fig. 6), and the U-shaped recesses 5a, 5a are provided with a joint not shown in the figure. The pins are fitted together.

According to the configuration of the first embodiment as described above, the hydraulic oil obtained from the hydraulic actuator 1 is supplied from the pair of supply ports 10a and 10b formed in the boss 3 to the first joint 25 and the second joint.
Via joint 27 and eyebolts 33, 35 of pipe body 29,
31 and the recess 23a of the plate bracket 17,
Joined based on the mating of 23b, 23c and pins 25a, 27a
The effect that the rotation of 25 and 27 is prevented can be obtained.

The mounting position of the plate-shaped bracket 17 is not limited to the state shown in FIGS. 1 and 2, and the plate-shaped bracket 17 is rotated 180 degrees by removing the bolt 19 and the nut 21, for example. can do. Further, from the viewpoint of layout with other members, prepare another plate-shaped bracket in which the positions of the recesses 23a, 23b, 23c are made different in advance, and replace the plate-shaped bracket with the bracket 17 if necessary. Is also possible. That is, in the present invention, one of the features is that the lead-out direction of the tube bodies 29, 31 can be changed simply by replacing the plate-shaped bracket 17 with another bracket in this way.

In the above embodiment, a plurality of recesses 23a, 23b, 23c are formed on the upper edge of the plate bracket 17, but the recess 23
The number of a, 23b, and 23c does not necessarily have to be plural, and may be singular.

FIG. 3 shows a second embodiment of the present invention, the basic structure of which is substantially the same as that of the first embodiment and is indicated by the same reference numeral. In this example, plate bracket
17 is formed as an ellipse on a plane, and recesses 23a, 23b, 23c are formed at arbitrary positions on the upper edge of the plate bracket 17. The plate-like bracket 17 is detachably arranged by using the bolt 19 and the nut 21, as in the first embodiment.

According to the second embodiment, the pin 25a protruding from the first joint 25 is fitted into the recess 23b formed in the upper edge of the plate-like bracket 17 and is connected to the first joint 25. The pipe body 29 is fitted into the recess 23c of the plate-like bracket 17, and the first joint 25 is placed on the supply port 10a formed in the upper surface of the boss 3, and then the eyebolt 3
3 using the first joint 25 as indicated by arrow C
Together with the gaskets 39 and 41, the supply port 10a of the boss 3
The hydraulic actuator 1 and the pipe body 29 can be connected to each other via the first joint 25 by being screwed into.

Similarly, a pin 27a projecting from the second joint 27 is fitted in the plate bracket 17 and a recess 23a formed in the upper edge portion, and a pipe body 31 is fitted in the recess 23c of the plate bracket 17. In this state, the second joint 27 is placed on the supply port 10b, and then the eye joint 35 is used to move the second joint 27 together with the gaskets 43 and 37 to the supply port of the boss 3. By screwing on 10b,
The tube body 31 of the hydraulic actuator 1 is connected via the second joint 27.

4 and 5 are plate-shaped brackets 17 used in the present invention.
It is a plan view showing a modified example of the above, and various varieties other than such an example are conceivable. Therefore, it is only necessary to select and use the most suitable plate-shaped bracket in terms of the layout of hydraulic equipment.

EFFECTS OF THE INVENTION As described in detail above, according to the hydraulic pipe joint mounting structure of the present invention, the hydraulic oil supply port is provided on the hydraulic source and the hydraulic oil supply port is formed on the upper surface of the hydraulic oil supply port. A boss, a plate-shaped bracket that is detachably arranged in a portion surrounding the boss for supplying hydraulic oil, and has a single or a plurality of recesses formed in an upper edge portion, and a rotation prevention pin protrudes in a side portion. A joint for connecting a pipe for hydraulic oil, and a connecting member for connecting the joint to the boss for supplying hydraulic oil, wherein a pin and a pipe for preventing rotation of the joint are provided. Since the joint is connected to the hydraulic oil supply boss using the connecting member in the state of being fitted in the recess formed in the upper edge portion of the plate-like bracket, the following operational effects are brought about. That is, when connecting hydraulic oil supply pipes from a hydraulic power source to a variety of hydraulic devices via joints, the plate-shaped bracket is attached to a portion surrounding a hydraulic oil supply boss disposed in the hydraulic power source, and the joints are attached. After fitting a rotation preventing pin protruding on the side of the plate and a pipe of hydraulic oil connected to the joint into the recess of the plate bracket, the joint is connected to the boss using a connecting member. By performing the work described above, the joint can be connected to the boss for supplying the hydraulic oil in a state where the rotation of the joint is prevented. Moreover, because the joint is supported by multiple recesses,
The mounting position accuracy of the joint can be improved.

Furthermore, the plate bracket is detachable from the boss, and the position of the recess formed in the upper edge of the plate bracket can be arbitrarily changed. It is possible to change the position of the recess by changing the direction of the bracket in consideration of the above, and prepare a plurality of plate-shaped brackets with different positions of the recess in advance to apply it to other hydraulic equipment with different specifications. Even when doing so, it can be dealt with by simply exchanging it with another bracket, and has an advantage that the degree of freedom for various hydraulic pipes is improved and the versatility is improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential parts showing a first embodiment of a mounting structure for a hydraulic piping joint according to the present invention, FIG. 2 is a plan view showing a state before the mounting, and FIG. 3 is a perspective view of the present invention. FIG. 4 is a partial plan view showing a modified example of the present invention, and FIG. 6 is an exploded perspective view of essential parts showing a conventional joint mounting structure. . 1 ... Hydraulic actuator (hydraulic power source), 3 ... Hydraulic oil supply boss, 17 ... Plate bracket, 19 ...
… Bolts, 21 …… nuts, 23a, 23b, 23c …… recesses, 25…
… First joint, 27 …… Second joint, 25a, 27
a …… pin, 29,31 …… tube, 33,35 …… eyebolt,

Claims (1)

(57) [Claims] 1. A hydraulic oil supply boss, which is disposed in a hydraulic power source and has a hydraulic oil supply port formed in an opening on the upper surface thereof, and is detachably disposed in a portion surrounding the hydraulic oil supply boss. , A plate-shaped bracket having a single or a plurality of recesses formed in the upper edge portion, a joint in which a rotation-preventing pin is projectingly provided on a side portion, and a hydraulic oil pipe body is connected, and the joint. A connecting member connected to the hydraulic oil supply boss, wherein the joint rotation preventing pin and the tubular body are fitted in the recess formed in the upper edge portion of the plate-shaped bracket, A mounting structure for a joint for hydraulic piping, wherein the joint is connected to a boss for supplying hydraulic oil by using the connecting member.