CN216429652U - Hydraulic support is with round pin axle that can annotate oil and have its hydraulic support - Google Patents

Abstract

The utility model discloses a hydraulic support is with filling oil round pin axle and have its hydraulic support, including the round pin axle body, set up the connecting seat in the one end of round pin axle body, the connecting seat is through first screw hole and round pin axle body threaded connection, and the one end of connecting seat sets up the step hole, and the other end sets up the second screw hole, and the step hole is used for holding the grease nipple, and the grease nipple passes through the second screw hole and is connected with the connecting seat; the one end that the connecting seat was kept away from to first screw hole sets up the cross bore along the axial of round pin axle body, radially sets up a plurality of oilhole along round pin axle body, and the cross bore sets up with the radial UNICOM of oilhole, cross bore and the setting of grease nipple axial UNICOM. The utility model discloses a can annotate oil round pin axle through setting up the cross bore at round pin axle body axial, radially sets up the oilhole, sets up connecting seat and grease nipple at round pin axle body end, through the grease nipple joining lubricating oil, has reduced the frictional force between round pin axle and the structure, has reduced the wearing and tearing volume of knot component pore wall.

Description

Hydraulic support is with round pin axle that can annotate oil and have its hydraulic support

Technical Field

The utility model relates to a round pin axle technical field especially relates to a hydraulic support is with round pin axle and have its hydraulic support of annotating oil.

Background

The hydraulic supports for coal mining support in coal mines have large supporting area and also involve lifting and swinging motions, the base and the four-bar linkage, the four-bar linkage and the top beam, the top beam and the shield beam, and the top beam and the front beam are connected through hinged pin shafts, and because the supporting force of some hydraulic supports is about 1000 tons, each pin shaft needs to bear larger pressure, the outer diameter of the hinged shaft is larger, and the hole wall matched with the hinged shaft is thicker, so that strong supporting force is formed. The hydraulic support needs to be moved frequently to push the hydraulic support during supporting, so that the hydraulic support can be pushed only by descending all structural members supported by the top beam, the four connecting rods and the large upright post, and then the hydraulic support is lifted to be supported, so that relative motion is generated between the pin shaft and the hole wall of the matched structural member.

SUMMERY OF THE UTILITY MODEL

Do not have emollient between round pin axle and the structure pore wall to existence among the above-mentioned correlation technique, long-term operation back, the technical problem of structure pore wall serious wear, the utility model aims to provide a hydraulic support is with round pin axle and have its hydraulic support of annotating oil.

The utility model discloses but still provide a hydraulic support that has above-mentioned oiling round pin axle.

The oil injection pin shaft for the hydraulic support comprises a pin shaft body, wherein a connecting seat is arranged at one end of the pin shaft body, the connecting seat is in threaded connection with the pin shaft body through a first threaded hole, a step hole is formed in one end of the connecting seat, a second threaded hole is formed in the other end of the connecting seat, the step hole is used for accommodating a grease nipple, and the grease nipple is connected with the connecting seat through the second threaded hole; one end of the first threaded hole, which is far away from the connecting seat, is provided with a transverse hole along the axial direction of the pin shaft body, a plurality of oil holes are arranged along the radial direction of the pin shaft body, the transverse hole is radially communicated with the oil holes, and the transverse hole is axially communicated with the grease nipple.

According to the utility model discloses a hydraulic support is with round pin axle of annotating oil through setting up the cross bore at round pin axle body axial, radially sets up the oilhole, sets up connecting seat and grease nipple at round pin axle this end of body, through the grease nipple joining lubricating oil, lubricating oil passes through the cross bore, gets into the gap between round pin axle body and the structure that links to each other through round pin axle body through the oilhole again, has reduced the frictional force between round pin axle and the structure, has reduced the wearing and tearing volume of structure pore wall.

In some embodiments, the pin body is used for connecting structural members, and the cross hole is used for storing and passing lubricating oil.

In some embodiments, an end of the oil hole away from the transverse hole is located in the middle of the structural member.

In some embodiments, the oil hole is used for adding the lubricating oil into a gap between the structural member and the pin shaft body.

The following is to according to the utility model discloses hydraulic support of second aspect simply describes, hydraulic support includes base, four-bar linkage, back timber, front-axle beam and shields the roof beam, hydraulic support still includes according to the utility model discloses the oiling round pin axle of first aspect, the base with between the four-bar linkage with between the back timber, between back timber and the shield roof beam and the back timber with all pass through between the front-axle beam can annotate the oil round pin hub connection.

According to the utility model discloses a hydraulic support through the round pin axle of can annotating oil that sets up above-mentioned first aspect, has alleviateed the destruction to hydraulic support structure, has improved hydraulic support's life.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a hydraulic support is with annotating oil round pin axle sets up the cross bore through selling axle body axial, radially sets up the oilhole, sets up connecting seat and grease nipple at this end of body of round pin axle, through the grease nipple joining lubricating oil, has reduced the frictional force between round pin axle and the structure, has reduced the wearing and tearing volume of knot component pore wall, has improved hydraulic support's life.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of the hinge pin of the present invention;

fig. 2 is a sectional view of the hinge pin of the present invention;

fig. 3 is a perspective view of the hydraulic support of the present invention.

Description of reference numerals:

hydraulic support 1, round pin axle body 2, oilhole 3, connecting seat 4, grease nipple 5, step hole 6, second screw hole 7, first screw hole 8, cross bore 9.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following describes a hydraulic support provided according to an embodiment of the first aspect of the present invention with an oil-injectable pin shaft with reference to the drawings.

As shown in fig. 1-3, according to the oil-injectable pin shaft for the hydraulic support 1 provided in the embodiment of the first aspect of the present invention, the oil-injectable pin shaft comprises a pin shaft body 2, a connecting seat 4 is provided at one end of the pin shaft body 2, the connecting seat 4 is in threaded connection with the pin shaft body 2 through a first threaded hole 8, one end of the connecting seat 4 is provided with a step hole 6, the other end is provided with a second threaded hole 7, the step hole 6 is used for accommodating a grease nipple 5, and the grease nipple 5 is connected with the connecting seat 4 through the second threaded hole 7; one end of the first threaded hole 8, which is far away from the connecting seat 4, is provided with a transverse hole 9 along the axial direction of the pin shaft body 2, a plurality of oil holes 3 are radially arranged along the pin shaft body 2, the transverse hole 9 is radially communicated with the oil holes 3, and the transverse hole 9 is axially communicated with the grease nipple 5.

Set up connecting seat 4 in the one end of round pin axle body 2, connecting seat 4 sets up step hole 6 through first screw hole 8 and round pin axle body 2 threaded connection, and the one end of connecting seat 4, the other end sets up second screw hole 7, and step hole 6 is used for holding grease nipple 5. Particularly, connecting seat 4 sets up in the one end of round pin axle body 2, through first screw hole 8 and round pin axle body 2 threaded connection, and connecting seat 4 of this embodiment is made by the bolt, sets up step hole 6 in the one end of bolt hexagonal, and step hole 6 is used for holding grease nipple 5, sets up second screw hole 7 in the one end of keeping away from the bolt hexagonal. When the hydraulic support 1 is overhauled, the internal thread of the second threaded hole 7 can be used for connecting and disassembling a screw rod in a threaded mode.

The grease nipple 5 is connected with the connecting seat 4 through the second threaded hole 7, particularly, the outer diameter of one end thread of the grease nipple 5 is smaller than the inner diameter of the second threaded hole 7, the grease nipple 5 is accommodated in the stepped hole 6, and the second threaded hole 7 is connected with the connecting seat 4. Lubricating oil is injected into the pin shaft body 2 through a grease nipple 5.

One end of the first threaded hole 8, which is far away from the connecting seat 4, is provided with a transverse hole 9 along the axial direction of the pin shaft body 2, a plurality of oil holes 3 are radially arranged along the pin shaft body 2, the transverse hole 9 is radially communicated with the oil holes 3, and the transverse hole 9 is axially communicated with the grease nipple 5. Particularly, bore out cross bore 9 along the axial direction of round pin axle body 2, cross bore 9 leads to with grease nipple 5 through first screw hole 8, in this embodiment, bores out a cross bore 9 along the axial pin in the intermediate position of round pin axle body 2, sets up 4 oilholes 3 along the radial position of round pin axle body 2, and cross bore 9 sets up with oilhole 3 UNICOM, and the one end that the oilhole 3 kept away from cross bore 9 is worn out round pin axle body 2 and is communicated with each other with the external world. It will be appreciated that the cross bore 9 serves to store and pass lubricating oil. One end of the oil hole 3 far away from the transverse hole 9 is located in the middle of a structural part connected through the pin shaft body 2, particularly, the structural part is connected with the structural part through the pin shaft body 2, one end of the oil hole 3 is communicated with the transverse hole 9, the other end of the oil hole penetrates out of the pin shaft body 2 to be communicated with the outside, and one end of the oil hole penetrating out of the pin shaft body 2 is located in the middle of the structural part so as to add lubricating oil to the structural part.

The utility model discloses the process of lubricating the knot component does, pours into lubricating oil into through grease nipple 5, and lubricating oil gets into cross bore 9 through second screw hole 7, first screw hole 8, and lubricating oil can be saved in cross bore 9, also can pass through cross bore 9, and lubricating oil flows through the oilhole 3 with cross bore 9 UNICOM through the in-process of cross bore 9, and lubricating oil enters into the gap between structure and the round pin axle body 2 through oilhole 3 to lubricate the knot component.

A hydraulic mount 1 according to a specific embodiment of the second aspect of the present invention will be described below. As shown in fig. 3, the hydraulic support 1 includes a base, a four-bar linkage, a top beam, a front beam and a shield beam, the hydraulic support 1 further includes a pin capable of injecting oil according to the first aspect of the present invention, and the pin capable of injecting oil is connected between the base and the four-bar linkage, between the four-bar linkage and the top beam, between the top beam and the shield beam, and between the top beam and the front beam.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (5)

1. The oil injection pin shaft for the hydraulic support is characterized by comprising a pin shaft body, wherein one end of the pin shaft body is provided with a connecting seat, the connecting seat is in threaded connection with the pin shaft body through a first threaded hole, one end of the connecting seat is provided with a step hole, the other end of the connecting seat is provided with a second threaded hole, the step hole is used for accommodating a grease nipple, and the grease nipple is connected with the connecting seat through the second threaded hole; one end of the first threaded hole, which is far away from the connecting seat, is provided with a transverse hole along the axial direction of the pin shaft body, a plurality of oil holes are arranged along the radial direction of the pin shaft body, the transverse hole is radially communicated with the oil holes, and the transverse hole is axially communicated with the grease nipple.

2. The oil filling pin for hydraulic supports as defined in claim 1, wherein the pin body is used for connecting structural members, and the cross hole is used for storing and passing lubricating oil.

3. The oiling pin for a hydraulic mount according to claim 2, wherein the end of the oil hole remote from the cross-hole is located in the middle of the structural member.

4. The oiling pin for a hydraulic mount according to claim 3, wherein said oil hole is used to add said lubricating oil to the gap between said structural member and said pin body.

5. A hydraulic support, including base, four-bar linkage, back timber, front beam and shield roof beam, characterized by, still include according to any one of claims 1-4 can annotate the oil round pin axle, but between the base and the four-bar linkage, between the four-bar linkage and the back timber, between the back timber and the shield roof beam and between the back timber and the front beam all through can annotate the oil round pin axle and connect.

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