CN218325803U - Pin shaft sleeve - Google Patents

Abstract

The utility model discloses a pin shaft sleeve, its technical scheme main points are: including the round pin axle sleeve, the fixed orifices has been seted up to the one end of round pin axle sleeve, lubricated subassembly sets up the interior round wall of fixed orifices for lubricate the inside of round pin axle sleeve, lubricated subassembly includes: remove the post, remove the post with the inside activity of fixed orifices cup joints, the screw thread has been seted up to the interior round wall of fixed orifices, the one end fixed mounting who removes the post has the spring, the one end fixed mounting of spring has the screw thread post, the screw thread post with fixed orifices threaded connection, the circular port has been seted up to the one end of screw thread post, and through the mutually supporting use of screw thread post, round pin axle sleeve, fixed orifices, removal post, sealing ring, first fixed slot, removal post and second spread groove, can reach when adding more lubricating oil once only, avoid lubricating oil can a large amount of effect from the both ends outflow of round pin axle sleeve, and then avoided extravagantly.

Description

Pin shaft sleeve

Technical Field

The utility model relates to a round pin axle sleeve technical field, concretely relates to round pin axle sleeve.

Background

The pin shaft is a standard fastener, can be fixedly connected statically and can also move relative to a connected piece, and is mainly used for the hinged part of two parts to form hinged connection, and the pin shaft sleeve is generally matched with the pin shaft for use and is sleeved with the pin shaft for reducing the abrasion of the pin shaft.

Among the prior art, when carrying out the oiling lubrication to the round pin axle sleeve of excavator rotor arm, generally once only use the inside injection sufficient lubricating oil of round pin axle sleeve, but more lubricating oil often can lead to flowing out in a large number from the both ends of round pin axle sleeve because of round pin axle sleeve extrudees each other with the round pin axle, and is comparatively extravagant.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a round pin axle sleeve has solved more lubricating oil and has often can be because of round pin axle sleeve and round pin axle extrude each other and lead to flowing in a large number, comparatively extravagant problem from the both ends of round pin axle sleeve.

The above technical object of the present invention can be achieved by the following technical solutions:

a pin bushing, comprising: the round pin axle sleeve, the fixed orifices has been seted up to the one end of round pin axle sleeve, lubricated subassembly sets up the interior round wall of fixed orifices is used for right the inside of round pin axle sleeve is lubricated, lubricated subassembly includes: the movable pin shaft sleeve comprises a movable post, the movable post is movably sleeved with the inside of a fixed hole, threads are formed in the inner circular wall surface of the fixed hole, a spring is fixedly mounted at one end of the movable post, a threaded post is fixedly mounted at one end of the spring and is in threaded connection with the fixed hole, a circular hole is formed in one end of the threaded post, a first connecting groove is formed in the inner circular wall surface of the pin shaft sleeve and is communicated with the fixed hole, a sealing plate is fixedly sleeved inside the first connecting groove, two communicating holes are formed in one side of the sealing plate, and two second connecting grooves are formed in the inner circular wall surface of the pin shaft sleeve.

In order to prevent lubricating oil from removing the post and selling the gap seepage between the axle sleeve, as the utility model discloses a round pin axle sleeve, the preferred, first fixed slot has been seted up to the excircle wall that removes the post, the fixed sealing ring that has cup jointed in inside of first fixed slot.

In order to facilitate the use of the rotating threaded column of the user, as the utility model discloses a pin shaft sleeve, the preferred, the rotation groove has been seted up to the one end of threaded column.

In order to carry on spacingly to the round pin axle sleeve, conduct the utility model discloses a round pin axle sleeve, the preferred, the one end fixed mounting of round pin axle sleeve has the spacing ring.

In order to lubricate the excircle wall of round pin axle sleeve, as the utility model discloses a round pin axle sleeve, the preferred, the third spread groove has been seted up to the excircle wall of round pin axle sleeve, a plurality of fourth spread groove has been seted up to the round pin axle sleeve excircle wall of round pin axle sleeve, the second fixed slot has been seted up to the excircle wall of round pin axle sleeve, the second fixed slot with the fourth spread groove is linked together, the third spread groove with the fourth spread groove is linked together.

In order to make the inside of round pin axle sleeve and outside lubricating oil can circulate each other, conduct the utility model discloses a round pin axle sleeve, the preferred, two connecting holes have been seted up to the excircle wall of round pin axle sleeve.

To sum up, the utility model discloses mainly have following beneficial effect:

through mutually supporting use of screw post, round pin axle sleeve, fixed orifices, removal post, sealing ring, first fixed slot, removal post and second spread groove, can reach when disposable more lubricating oil of adding, avoid lubricating oil can be a large amount of from the effect of the both ends outflow of round pin axle sleeve, and then avoided extravagant.

Through the mutually supporting use of sealing ring, removal post and fixed orifices, can reach the effect that prevents the gap seepage between lubricating oil follow removal post and the round pin axle sleeve.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the pin bush structure of the present invention;

FIG. 3 is a partial schematic view of A of FIG. 2;

fig. 4 is a partial structural diagram of B in fig. 2.

Reference numerals: 1. a pin bush; 2. a fixing hole; 3. moving the column; 4. a spring; 5. a threaded post; 6. a first connecting groove; 7. a sealing plate; 8. a communicating hole; 9. a first fixing groove; 10. a seal ring; 11. a rotating groove; 12. a second connecting groove; 13. a limiting ring; 14. a third connecting groove; 15. connecting holes; 16. a fourth connecting groove; 17. and a second fixing groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, 2, 3 and 4, a pin bushing, comprising: fixing hole 2 has been seted up to round pin axle sleeve 1, the one end of round pin axle sleeve 1, and the interior round wall of fixing hole 2 is provided with lubricating assembly for lubricate the inside of round pin axle sleeve 1, lubricating assembly includes: a movable column 3, the movable column 3 is movably sleeved with the inside of the fixed hole 2, the inner circular wall surface of the fixed hole 2 is provided with a thread, one end of the movable column 3 is fixedly provided with a spring 4, one end of the spring 4 is fixedly provided with a threaded column 5, the threaded column 5 is in threaded connection with the fixed hole 2, one end of the threaded column 5 is provided with a circular hole, the inner circular wall surface of the pin shaft sleeve 1 is provided with a first connecting groove 6, the first connecting groove 6 is communicated with the fixed hole 2, a sealing plate 7 is fixedly sleeved inside the first connecting groove 6, one side of the sealing plate 7 is provided with two communicating holes 8, the pore size of the communicating holes 8 is small, the inner circular wall surface of the pin shaft sleeve 1 is provided with two second connecting grooves 12, through the arranged threaded column 5, when the pin shaft sleeve 1 of the excavator rotating arm is lubricated, when the pin shaft sleeve 1 is detached and lubricating oil is added into the pin shaft sleeve 1, a flat port is inserted into the screwdriver rotating groove 11, inserting a flat screwdriver into the rotating groove 11, rotating to drive the threaded column 5 to rotate, screwing the threaded column 5 out of the fixing hole 2, then taking the threaded column 5, the spring 4, the moving column 3, the sealing ring 10 and the first fixing groove 9 out of the fixing hole 2, then adding lubricating oil into the fixing hole 2, picking up the threaded column 5, inserting the first fixing groove 9 into the fixing hole 2 to push the lubricating oil in the fixing hole 2 to enter a deeper position in the fixing hole 2, further filling the fixing hole 2 with the lubricating oil, screwing the first fixing groove 9, the moving column 3 and the threaded column 5 into the fixing hole 2, screwing the threaded column 5, assembling the pin shaft sleeve 1 and the rotating arm mounting position of the excavator, at the moment, under the elastic action of the spring 4, the spring 4 can push the moving column 3 to extrude the lubricating oil in the fixing hole 2, make lubricating oil slowly flow from the intercommunicating pore 8, and the hole of intercommunicating pore 8 is less, make the lubricating oil velocity of flow slower, thereby make the continuous slow outflow of lubricating oil long time, and then can be to the inside long time fuel feeding lubrication of pin bush 1, and lead to the second spread groove 12 that sets up, second spread groove 12 can carry out the water conservancy diversion to lubricating oil, thereby make lubricating oil can be comparatively even the inside at fixed orifices 2 flow, thereby avoid the lubricating oil of disposable interpolation to follow a large amount of problems of flowing from the both ends of pin bush 1, the inside of avoiding pin bush 1 has caused the waste to lubricating oil.

Referring to fig. 2, fig. 3 and fig. 4, first fixed slot 9 has been seted up to the excircle wall of removal post 3, the fixed sealing ring 10 that has cup jointed in inside of first fixed slot 9, the diameter ratio of sealing ring 10 is big than the diameter of removal post 3, rotation groove 11 has been seted up to the one end of screw thread post 5, the one end fixed mounting of pin bush 1 has spacing ring 13, third spread groove 14 has been seted up to the excircle wall of pin bush 1, a plurality of fourth spread groove 16 has been seted up to the excircle wall of pin bush 1, second fixed slot 17 is linked together with fourth spread groove 16, third spread groove 14 is linked together with fourth spread groove 16, two connecting holes 15 have been seted up to the excircle wall of pin bush 1, through the sealing ring 10 who sets up, the diameter ratio of sealing ring 10 removes the diameter of post 3 greatly, and then make when removing post 3 in the inside of fixed orifices 2, sealing ring 10 can extrude the gap between removal post 3 and seal to fixed orifices 2, and then prevent lubricating oil from the gap seepage between removal post 3 and pin bush 1.

The working principle is as follows: referring to fig. 1 to 4, when lubricating a pin bushing 1 of a swing arm of an excavator, by means of a installed screw post 5, when the pin bushing 1 is removed and lubricating oil is added to the inside of the pin bushing 1, a flat screwdriver is inserted into the inside of a rotation groove 11, the screw post 5 is rotated by being rotated, the screw post 5 is screwed out of the inside of a fixing hole 2, then the screw post 5, a spring 4, a moving post 3, a sealing ring 10 and a first fixing groove 9 are taken out of the inside of the fixing hole 2, then the lubricating oil is added to the inside of the fixing hole 2, the screw post 5 is taken up, the first fixing groove 9 is inserted into the inside of the fixing hole 2 to push the lubricating oil in the inside of the fixing hole 2 to enter a deeper place in the inside of the fixing hole 2, further the inside of the fixing hole 2 is filled with the lubricating oil, then the first fixing groove 9, the moving post 3 and the screw post 5 are screwed into the inside of the fixing hole 2, and screw the screw thread post 5, assemble round pin axle sleeve 1 with the rotor arm mounted position of excavator, this moment under spring 4's spring action, spring 4 can promote to remove post 3 and extrude the lubricating oil of the inside of fixed orifices 2, make lubricating oil slowly flow from intercommunicating pore 8, and the hole of intercommunicating pore 8 is less, make the lubricating oil velocity of flow slower, thereby make the continuous slow outflow of lubricating oil of longer time, and then can be to the inside fuel feeding lubrication of round pin axle sleeve 1 for a long time, and through the second spread groove 12 that sets up, second spread groove 12 can carry out the water conservancy diversion to lubricating oil, thereby make lubricating oil can be comparatively even the inside at fixed orifices 2 flow, thereby avoid the problem that a large amount of lubricating oil that once only adds can follow the both ends outflow of round pin axle sleeve 1, avoid the inside of round pin axle sleeve 1 to cause the waste to lubricating oil.

Through the sealing ring 10 that sets up, the diameter ratio of sealing ring 10 is big than the diameter that removes post 3, and then makes when removing post 3 in the inside of fixed orifices 2, and sealing ring 10 can extrude sealedly to the gap that removes between post 3 and the fixed orifices 2, and then prevents the gap seepage between lubricating oil follow removal post 3 and the round pin axle sleeve 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A pin bushing, comprising:

the pin shaft sleeve (1), wherein one end of the pin shaft sleeve (1) is provided with a fixing hole (2);

the lubricating component is arranged on the inner circle wall surface of the fixing hole (2) and used for lubricating the inside of the pin shaft sleeve (1), and the lubricating component comprises: remove post (3), remove post (3) with the inside activity of fixed orifices (2) is cup jointed, the interior circle wall of fixed orifices (2) is seted up threadedly, the one end fixed mounting who removes post (3) has spring (4), the one end fixed mounting of spring (4) has screw thread post (5), screw thread post (5) with fixed orifices (2) threaded connection, the circular port has been seted up to the one end of screw thread post (5), first connecting groove (6) have been seted up to the interior circle wall of round pin axle sleeve (1), first connecting groove (6) with fixed orifices (2) are linked together, the inside fixed of first connecting groove (6) has cup jointed closing plate (7), two intercommunicating pores (8) have been seted up to one side of closing plate (7), two second connecting grooves (12) have been seted up to the interior circle wall of round pin axle sleeve (1).

2. A pin bushing as recited in claim 1, wherein: a first fixing groove (9) is formed in the outer circle wall surface of the movable column (3), and a sealing ring (10) is fixedly sleeved inside the first fixing groove (9).

3. A pin bushing as recited in claim 1, wherein: one end of the threaded column (5) is provided with a rotating groove (11).

4. A pin bushing according to claim 1, wherein: and one end of the pin shaft sleeve (1) is fixedly provided with a limiting ring (13).

5. A pin bushing according to claim 1, wherein: third connecting groove (14) have been seted up to the excircle wall of key bush (1), a plurality of fourth connecting groove (16) have been seted up to the excircle wall of key bush (1), second fixed slot (17) with fourth connecting groove (16) are linked together, third connecting groove (14) with fourth connecting groove (16) are linked together.

6. A pin bushing according to claim 1, wherein: the excircle wall surface of the pin shaft sleeve (1) is provided with two connecting holes (15).

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