阅读说明：本技术 液压管件加工工具的排气加油结构 (Exhaust oiling structure of hydraulic pipe fitting machining tool ) 是由 蒋友荣 于 2021-07-26 设计创作，主要内容包括：本发明公开了一种液压管件加工工具,提供了一种结构简单,可根据使用需求随时补充加注或更换液压油,确保管件加工工具正常使用的液压管件加工工具的排气加油结构,解决了现有技术中存在的液压管件加工工具内的液压油无法补充或更换,影响管件加工工具性能和使用寿命等技术问题,它包括本体及本体上的环形贮油槽,在环形贮油槽外罩装有贮油环,贮油环与环形贮油槽共同围合形成贮油腔,在所述本体上设有加油口,加油口通过加油通道连通在环形贮油槽壁面上,与加油通道内端口对应的贮油环边沿顺沿对应的环形贮油槽壁面向下延伸形成排气凹环。(The invention discloses a hydraulic pipe fitting machining tool, which provides an exhaust and refueling structure of the hydraulic pipe fitting machining tool, which has a simple structure, can supplement and replenish or replace hydraulic oil at any time according to use requirements, and ensures that the hydraulic pipe fitting machining tool is normally used, and solves the technical problems that the performance and the service life of the hydraulic pipe fitting machining tool are influenced because the hydraulic oil in the hydraulic pipe fitting machining tool in the prior art cannot be supplemented or replaced.)

1. The utility model provides a hydraulic pressure pipe fitting machining tool's exhaust refuels structure, includes annular oil storage groove (2) on body (1) and body (1), is equipped with oil storage ring (3) at annular oil storage groove (2) dustcoat, and oil storage ring (3) enclose jointly with annular oil storage groove (2) and close and form oil storage chamber (4), its characterized in that: the oil storage ring is characterized in that an oil filling port (5) is formed in the body (1), the oil filling port (5) is communicated with the wall surface of the annular oil storage tank (2) through an oil filling channel (6), and the edge of the oil storage ring (3) corresponding to the port in the oil filling channel (6) extends downwards along the corresponding wall surface of the annular oil storage tank (2) to form an exhaust concave ring (7).

2. The exhaust oiling structure of a hydraulic pipe machining tool according to claim 1, characterized in that: the bottom surface of the corresponding exhaust concave ring (7) in the oil storage cavity (4) is close to the inner port of the oil filling channel (6).

3. The exhaust oiling structure of a hydraulic pipe machining tool according to claim 1, characterized in that: the inner wall surface of one end of the annular oil storage tank (2) extends outwards along the radial direction to form a mounting platform (9), and the oil filling port (5) and the oil filling channel (6) are arranged on the mounting platform (9).

4. The exhaust oiling structure of a hydraulic pipe machining tool according to claim 3, characterized in that: the inner port of the oiling channel (6) is close to the outer annular surface of the mounting platform (9).

5. The exhaust oiling structure of a hydraulic pipe machining tool according to claim 1, characterized in that: the body (1) corresponding to the bottom of the annular oil storage groove (2) is axially connected with a plunger (10) in a sliding manner, the plunger (10) is radially communicated in the oil storage cavity (4) through an oil absorption one-way valve (11), and the wall thickness of an oil storage ring (3) corresponding to the oil absorption one-way valve (11) is increased.

6. The exhaust oiling structure of a hydraulic pipe machining tool according to claim 5, wherein: the surface of the body (1) corresponding to the oil absorption one-way valve (11) is cut to form a first tangent plane (8).

7. The exhaust oiling structure of a hydraulic pipe machining tool according to claim 1, characterized in that: the ports at two sides of the oil storage ring (3) are respectively clamped on the body (1) in a sealing way through a clamping hoop (12).

8. The exhaust oiling structure of a hydraulic pipe machining tool according to claim 1, characterized in that: the oil filling port (5) is hermetically sealed and plugged with an oil filling plug (13) or an elastic oil bottle (14).

9. The exhaust oiling structure of a hydraulic pipe machining tool according to claim 1, characterized in that: the oil storage ring (3) is an elastomer with the middle part protruding outwards.

10. The exhaust oiling structure of a hydraulic pipe machining tool according to claim 1, characterized in that: the diameter of the outer port of the oil storage ring (3) is smaller than that of the inner port.

Technical Field

The invention relates to a pipe fitting machining tool, in particular to an exhaust and oiling structure of a hydraulic pipe fitting machining tool, which is simple in structure, can supplement and fill or replace hydraulic oil at any time according to use requirements and ensures normal use of the pipe fitting machining tool.

Background

The hydraulic system is an important component of a hydraulic pipe fitting machining tool, and the existing hydraulic pipe fitting machining tool generally has the following problems: firstly, the phenomenon of hydraulic oil leakage is inevitably generated after long-term use, so that the oil quantity of the hydraulic oil is insufficient, and the normal use of a pipe fitting machining tool is influenced; secondly, after the pipe fitting machining tool is used for a long time, a plurality of impurities can be accumulated in the internal pipeline of the hydraulic oil, and the impurities are mixed into the hydraulic oil to directly cause the problems of aggravation of abrasion of moving parts such as a piston and a plunger, poor sealing of a one-way valve and the like, so that the performance and the service life of the pipe fitting machining tool are influenced; and thirdly, the hydraulic oil can be deteriorated after being used for a long time, and the motion lubrication and sealing effects are poor. Because the existing hydraulic pipe fitting machining tool is not provided with an oil filling structure, once the problems occur and hydraulic oil needs to be supplemented and filled or replaced, the pipe fitting machining tool can only be sent back to a production plant for maintenance, so that inconvenience is brought to users, and the use cost is increased.

Disclosure of Invention

The invention mainly provides the exhaust and refueling structure of the hydraulic pipe fitting machining tool, which is simple in structure, can supplement and refill or replace hydraulic oil at any time according to use requirements and ensure that the pipe fitting machining tool is normally used, and solves the technical problems that the performance and the service life of the pipe fitting machining tool are influenced because the hydraulic oil in the hydraulic pipe fitting machining tool cannot be supplemented or replaced in the prior art.

The technical problem of the invention is mainly solved by the following technical scheme: the exhaust oiling structure of the hydraulic pipe fitting machining tool comprises a body and an annular oil storage groove on the body, wherein an oil storage ring is arranged on the outer cover of the annular oil storage groove, the oil storage ring and the annular oil storage groove jointly enclose to form an oil storage cavity, an oiling port is arranged on the body and is communicated with the wall surface of the annular oil storage groove through an oiling channel, and the edge of the oil storage ring corresponding to an inner port of the oiling channel extends downwards along the wall surface of the annular oil storage groove corresponding to the outer port of the oiling channel to form an exhaust concave ring. When the hydraulic system is leaked or the oil quality of the hydraulic oil changes and needs to be replaced, the hydraulic oil can be supplemented to the oil storage cavity through the oil filling port, or the deteriorated hydraulic oil is discharged through the oil filling port and then supplemented, when the oil is replaced, the oil filling port is opened downwards firstly, the oil storage ring is pressed to discharge the old oil, when the hydraulic oil is supplemented, the oil filling port is upward, the elastic oil bottle is pressed inwards to ensure that the oil bottle mouth is butted downwards on the oil filling port, the oil storage ring is pressed downwards only to discharge the air into the oil bottle, the inwards concave part of the oil bottle is reset, the air in the pipeline enters the bottom of the oil bottle, then the oil bottle is squeezed, the hydraulic oil enters the oil storage cavity, wherein in the oil filling process, the oil storage ring edge corresponding to the oil filling port in the oil filling channel extends downwards along the annular oil storage groove wall along the edge to form an exhaust concave ring, when the oil storage ring is pressed downwards, the exhaust concave ring close to the inner port of the oiling channel automatically clings to the wall surface of the annular oil storage groove, so that air in the dead angle is removed, the generation of the exhaust dead angle is avoided, the complete and thorough air exhaust is ensured, the influence of the mixed air in the system on the performance of a pipe fitting machining tool is avoided, the structure is simple, the filling or the replacement of hydraulic oil is supplemented at any time according to the use requirement, and the normal use of the pipe fitting machining tool is ensured.

Preferably, the bottom surface of the corresponding exhaust concave ring in the oil storage cavity is close to the inner port of the oil filling channel. When the bottom surface of the exhaust concave ring is close to the inner port of the oil filling channel, the exhaust dead angle is eliminated to the maximum extent, and the thorough air exhaust is ensured.

Preferably, an inner wall surface of one end of the annular oil sump extends radially outward to form a mounting table, and the oil filler opening and the oil filling passage are both provided on the mounting table. The installation platform is convenient for lay and install the relevant spare part such as oil filler hole and refueling passageway.

More preferably, the inner port of the refueling passage is adjacent to the outer annular surface of the mounting platform. When the inner port of the oil filling channel is close to the outer annular surface of the mounting table, the exhaust dead angle space is reduced.

Preferably, the body corresponding to the bottom of the annular oil storage tank is axially and slidably connected with a plunger, the plunger is radially communicated in the oil storage cavity through an oil suction one-way valve, and the wall thickness of the oil storage ring corresponding to the oil suction one-way valve is increased. In the process of oil absorption of the oil absorption one-way valve, because the suction force near the oil absorption one-way valve is large and the negative pressure is high, the corresponding oil storage ring can deform firstly, so that the flowing resistance of hydraulic oil is increased, and the oil absorption efficiency is reduced.

More preferably, the surface of the body corresponding to the oil suction one-way valve is cut to form a first tangent plane. The body that the oil absorption check valve corresponds forms first tangent plane by current cylindrical surface cutting back, and the oil absorption check valve sets up on first tangent plane to enlarged oil feed circulation space near the oil absorption check valve, made the hydraulic oil flow resistance reduce, further improved oil absorption efficiency, reduced oil absorption power consumption.

Preferably, the oil storage ring is tightly clamped on the body through clamping bands at two side ports. The clamp can be a metal clamp and also can be elastic rubber parts such as an O-shaped ring, and the fixing mode is simple and reliable.

Preferably, the filler neck is hermetically sealed with a filler plug or an elastic oil bottle. When the oil filling plug is in a working state, the oil filling opening is sealed and blocked by the oil filling plug in a sealing mode, the oil filling plug is detached when hydraulic oil is discharged or supplemented, oil is discharged according to requirements, or operations such as air discharging and filling are carried out after an elastic oil bottle is butted.

Preferably, the oil retainer is an elastomer with a middle part protruding outwards. The middle part of the oil storage ring protrudes outwards, so that the storage capacity of hydraulic oil is increased, and meanwhile, extrusion, exhaust and refueling are facilitated.

Preferably, the oil retaining ring has an outer port diameter smaller than an inner port diameter. The oil storage ring adopts a structure with a large inside and a small outside, so that the oil storage ring is convenient to sleeve and mount.

Therefore, the exhaust oiling structure of the hydraulic pipe fitting machining tool has the following advantages:

1. the oil can be changed by self without returning to the factory, and the cost is low;

2. the oil storage ring is designed with a large opening end and a small opening end, the large opening end is firstly sleeved in during assembly, the installation is easy, and the scratch risk generated in the assembly process is avoided;

3. the oil storage ring adopts a local concave design, so that the formation of an exhaust dead angle is avoided.

Description of the drawings:

FIG. 1 is a schematic view of the present invention in the configuration for refueling;

FIG. 2 is an enlarged fragmentary view of the present invention in operation;

fig. 3 is a partial radial cross-sectional view of the present invention.

The specific implementation mode is as follows:

the technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example (b):

as shown in fig. 1 and 2, the exhaust and refueling structure of a hydraulic pipe fitting processing tool of the present invention comprises a body 1 of the hydraulic pipe fitting processing tool and an annular oil storage tank 2 opened in the middle of the body 1, wherein the inner wall surface of the inner side end of the annular oil storage tank 2 extends radially outward to form an installation platform 9, so that the diameter of the inner side opening end of the annular oil storage tank 2 is larger than that of the outer side opening end, an oil storage ring 3 is mounted on the outer cover of the annular oil storage tank 2, the oil storage ring 3 is an elastic member with an outward protruding middle part and is made of rubber, the diameter of the outer side port (left side in fig. 1) is smaller than that of the inner side port (right side in fig. 1), the inner ring surfaces of the two side ports respectively extend inward to form a positioning ring 31, the body 1 and the installation platform 9 corresponding to the positioning ring 31 are respectively provided with an annular positioning groove 15, the positioning ring 31 is embedded in the corresponding annular positioning groove 15 and is respectively clamped and fixed by a hoop 12 in a sealing manner, the hoop 12 in this embodiment is a rubber O-ring, the oil storage ring 3 and the annular oil storage tank 2 together enclose to form an oil storage chamber 4, an oil filling port 5 is opened on the upper surface of the mounting table 9, the oil filling port 5 is communicated on the inner side wall surface of the annular oil storage tank 2 through an oil filling channel 6 in the mounting table 9, the inner port of the oil filling channel 6 is close to the upper surface of the mounting table 9, the oil storage ring 3 corresponding to the inner port of the oil filling channel 6 extends downwards along the wall surface of the annular oil storage tank 2 to form an exhaust concave ring, and the bottom surface of the exhaust concave ring 7 corresponding to the inner port of the oil storage chamber 4 is close to the inner port of the oil filling channel 6. As shown in fig. 3, a plunger 10 is axially slidably connected to the body 1 where the annular oil reservoir 2 is located, the plunger 10 is radially communicated in the oil reservoir 4 through an oil suction check valve 11, a first section 8 is formed after the surface of the body 1 where the oil suction check valve 11 is located is cut, the wall thickness of the oil storage ring 3 corresponding to the oil suction check valve 11 is increased, the wall thickness of the oil storage ring 3 in the embodiment is gradually increased, that is, the wall thickness of the oil storage ring 3 corresponding to the oil suction check valve 11 is the thickest, and the wall thickness of the oil storage ring 3 at the gradually distant position is gradually decreased, or a structure such as a structure that the oil storage ring 3 is locally thickened or locally additionally provided with a reinforcing rib can be adopted. When the pipe fitting machining tool is in a working state, the oil filling plug 13 is sealed and sealed on the oil filling opening 5, and when the air is required to be exhausted and the oil is required to be filled, the elastic oil bottle 14 and the oil filling sealing block are inserted into the oil filling opening 5 together.

The specific embodiments described herein are merely illustrative of the principles of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.