CN217684346U - Oiling head capable of improving grease residue - Google Patents
Oiling head capable of improving grease residue Download PDFInfo
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- CN217684346U CN217684346U CN202221303412.9U CN202221303412U CN217684346U CN 217684346 U CN217684346 U CN 217684346U CN 202221303412 U CN202221303412 U CN 202221303412U CN 217684346 U CN217684346 U CN 217684346U
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- oil
- hole
- oil filling
- pin
- grease
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Abstract
The utility model discloses an oil filling head capable of improving grease residue, which comprises an oil filling head body, wherein the oil filling head body is also provided with a top pin mounting hole and an oil discharging hole; a floating ejector pin mechanism is arranged in the ejector pin mounting hole; the floating ejector pin mechanism is provided with a through hole and an oil discharge groove, and the oil filling hole, the through hole and the workpiece mounting hole are communicated to form an oil filling passage; the oil filling hole, the oil unloading groove and the oil unloading hole are communicated to form an oil unloading passage. The utility model discloses can improve the remaining oiling head of grease, through increasing logical stop mechanism at oiling mouth oil feed end, when annotating the fat promptly, the oil circuit is unobstructed, when not annotating the fat, the oil circuit disconnection just spills over from the overflow mouth. Compared with the prior art, use the utility model discloses when the mechanism oiling of the remaining oiling head of grease can be improved, can not cause secondary pollution to the work piece, the grease that spills over also can be collected and recycled.
Description
Technical Field
The utility model relates to an oiling machine tool accessory field especially relates to a can improve remaining oiling head of grease.
Background
The pin shaft and the pin bush of the crawler belt assembly for the engineering machinery adopt clearance fit, abrasion can be generated between the pin shaft and the pin bush in the subsequent use process, the product performance and the service life are influenced, and lubricating grease needs to be added to reduce the abrasion. In the existing grease injection process, grease is injected into a gap of a pin bush of a pin shaft through an oil injection port by pressurizing through a pneumatic grease injection pump. After the grease is injected through the existing grease injection port, because the residual pressure of a pipeline is large, a large amount of residual grease overflows from the grease injection port after the grease injection is finished, and secondary pollution is caused to subsequent workpieces.
In the structure of the prior art oil filling head shown in fig. 1, when the pin 4a and the pin bush 5a are mounted on the oil filling head 1a, grease is injected into the gap between the pin 4a and the pin bush 5a through the oil filling port 13 a. The structure of the oil filling head has the disadvantages that after the grease injection is finished, air pressure residue exists in a pipeline, the oil filling head is seriously overflowed, so that redundant grease residue at one end of the pin shaft pollutes a workpiece, and personnel need to clean the workpiece independently.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides one kind and can improve remaining oiling head of grease, can reduce or stop the grease to remain after annotating the grease, realizes the management and control to work piece pollution phenomenon.
In order to solve the technical problem, the utility model discloses a technical scheme be: the oil filling head capable of improving the grease residue comprises an oil filling head body provided with an oil filling hole and a workpiece mounting hole, wherein the oil filling hole is communicated with the workpiece mounting hole;
a floating ejector pin mechanism is arranged in the ejector pin mounting hole; the floating top pin mechanism is provided with a through hole and an oil discharge groove, and the oil injection hole, the through hole and the workpiece mounting hole are communicated to form an oil injection passage; the oil filling hole, the oil discharge groove and the oil discharge hole are communicated to form an oil discharge passage;
in an initial state, the top of the floating ejector pin mechanism extends out of the oil injection head body, the oil injection passage is closed, and the oil discharge passage is opened;
when the oil filling head works, the top of the floating ejector pin mechanism is contracted into the oil filling head body after contacting a workpiece, an oil filling passage of the oil filling hole is opened, and an oil discharging passage of the oil filling hole and the oil discharging hole is closed;
and after oil injection is finished, the workpiece leaves, the floating knock pin mechanism is restored to the initial state, the oil injection passage is closed, and the oil discharge passage is opened.
In a preferred embodiment of the present invention, the floating pin ejecting mechanism comprises the reset mechanism and the pin connected to each other, and the through hole and the oil discharge groove are formed on the pin.
In a preferred embodiment of the present invention, the return mechanism is a spring.
In a preferred embodiment of the present invention, the pin includes a head portion and a rod portion, the diameter of the head portion is larger than the diameter of the rod portion, the through hole and the oil discharge groove are formed in the rod portion of the pin, and the oil discharge groove is track-shaped.
In a preferred embodiment of the present invention, the oil filling head body is provided with an exhaust hole, and the head of the pin is provided with an exhaust groove, wherein the exhaust hole is communicated with the exhaust groove.
In the utility model discloses a preferred embodiment, the oil filler point includes oil filler point and the inlet port that communicates each other, the diameter of oil filler point is greater than the diameter of inlet port, the inlet port with the knock pin mounting hole cross intercommunication.
In a preferred embodiment of the present invention, the diameter of the oil inlet hole is the same as the diameter of the through hole of the floating knock pin mechanism.
The beneficial effects of the utility model are that: the utility model discloses can improve the remaining oiling head of grease, through increasing logical stop mechanism at oiling mouth oil feed end, when annotating the fat promptly, the oil circuit is unobstructed, when not annotating the fat, the oil circuit disconnection just spills over from the overflow mouth. Compared with the prior art, use the utility model discloses when can improve the mechanism oiling of remaining oiling head of grease, can not cause secondary pollution to the work piece, the grease that spills over also can be collected and recycled.
Drawings
FIG. 1 is a schematic diagram of a prior art oil fill head;
FIG. 2 is a schematic structural view of a preferred embodiment of the grease nipple of the present invention for improving grease residue;
FIG. 3 is a schematic structural view of the oil filler head body shown in FIG. 2;
FIG. 4 isbase:Sub>A schematic sectional view taken along line A-A of FIG. 3;
FIG. 5 is a front view of the pin of FIG. 2;
FIG. 6 is a schematic top view of the pin of FIG. 5;
FIG. 7 is a side view of the pin of FIG. 5;
FIG. 8 is a schematic view of the oil filling head of FIG. 2 in operation;
FIG. 9 is a schematic view of the oil fill head of FIG. 2 after operation;
the parts in the drawings are numbered as follows: 1 a-an oil injection head; 4 a-a pin shaft; 5 a-pin sleeve; 13 a-an oil fill port; 1-oil injection head body; 11-workpiece mounting holes; 12-a seal ring mounting groove; 13-an oil filling port; 14-knock pin mounting holes; 15-oil discharge hole; 16-air vent; 17-oil inlet hole; 18-bolt mounting holes; 2-a pin; 22-a through hole; 23-oil discharge groove; 24-an exhaust groove; 3-a spring; 4-a pin shaft; 5-pin sleeve; 6-sealing ring; 7-grease.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 2 to 7, an embodiment of the present invention includes:
an oil filling head capable of improving residual grease 7 comprises an oil filling head body 1 and a floating ejector pin mechanism.
Referring to fig. 3 and 4, the oil filling head body 1 is cylindrical, a workpiece mounting hole 11 is formed in the axial center of the oil filling head body 1, a plurality of bolt mounting holes 18 are formed around the workpiece mounting hole 11, an oil filling hole is formed in the end of the oil filling head body 1 close to the workpiece, in the radial direction, and the oil filling hole is communicated with the workpiece mounting hole 11. The oil filling head is characterized in that the oil filling head body 1 is further provided with a top pin mounting hole 14 and an oil unloading hole 15, the oil unloading hole 15 is formed beside the oil filling hole and is arranged in parallel with the oil filling hole, and the top pin mounting hole 14 is formed in the axial direction and is communicated with the oil unloading hole 15 and the oil filling hole. In the present embodiment, the knock pin attaching hole 14 is stepped in a large-upper and small-lower direction. The oil filler point includes oil filler point 13 and inlet port 17 that communicate each other, the diameter of oil filler point 13 is greater than the diameter of inlet port 17, inlet port 17 with knock pin mounting hole 14 cross intercommunication. The diameter of the oil inlet 17 is the same as that of the through hole 22 on the floating knock pin mechanism.
The inside of the workpiece mounting hole 11 is further provided with a plurality of sealing ring 6 mounting grooves 12 for mounting the sealing rings 6, the sealing ring 6 mounting grooves 12 are positioned on the inner side of the oil inlet hole 17, and the sealing rings 6 at the positions are used for ensuring the contact sealing between the pin shaft 4 and the inner wall of the workpiece mounting hole 11. The end face of the oil filling head body 1 is also provided with a sealing ring 6 mounting groove 12 for mounting a sealing ring 6, and the sealing ring 6 at the position is used for ensuring the contact sealing between the pin bush 5 and the end face of the oil filling head body 1.
The floating knock pin mechanism is installed in the knock pin installation hole 14. The floating ejector pin mechanism is provided with a through hole 22 and an oil discharge groove 23, and the oil filling hole, the through hole 22 and the workpiece mounting hole 11 are communicated to form an oil filling passage; the oil filling hole, the oil discharge groove 23 and the oil discharge hole 15 are communicated to form an oil discharge passage.
As shown in fig. 5 to 7, preferably, the floating knock pin mechanism includes the return mechanism and the pin 2 connected to each other, and the return mechanism is a spring 3. The through hole 22 and the oil discharge groove 23 are arranged on the pin 2. The pin 2 comprises a head part and a rod part, the diameter of the head part is larger than that of the rod part, the through hole 22 and the oil unloading groove 23 are formed in the rod part of the pin 2, and the oil unloading groove 23 is in a runway shape.
In order to ensure that the floating ejector pin mechanism moves smoothly, the oil filling head body 1 is also provided with an exhaust hole 16 which is matched with an exhaust groove 24 formed in the head part of the pin 2, and the exhaust hole 16 and the exhaust groove 24 are always communicated in the back-and-forth movement of the pin 2.
As shown in fig. 2, 8 and 9, the present invention can improve the state of the grease 7 remaining in the grease injecting head, including three states, an initial state, a grease injecting state and a grease injecting completion state.
As shown in fig. 2, when the oil filling head is in an initial state, the top of the pin 2 extends out of the oil filling head body 1 under the action of the spring 3, and at this time, the through hole 22 of the pin 2 and the oil inlet hole 17 are dislocated, so that the oil filling passage is closed; and the oil discharge groove 23 is located below the oil inlet hole 17 and the oil discharge hole 15 so that the oil discharge path is in an open state.
Oiling state as shown in fig. 8: when the oil filling head works, the pin sleeve 5 and the pin shaft 4 are installed on the oil filling head, the head of the pin shaft 4 is installed in the workpiece installation hole 11, and the pin sleeve 5 is in contact with the end surface of the oil filling head, so that after the top of the pin 2 touches the pin sleeve 5, the pin sleeve moves backwards into the oil filling head body 1 under the pressure of the pin sleeve 5, at this time, the spring 3 is in a stressed compression state, at this time, the through hole 22 of the pin 2 and the oil inlet 17 are on the same straight line and are in a communicated state, namely, the oil filling passage is opened, and the oil discharging passage is closed.
The oiling completion state shown in fig. 9: after oil injection is completed, the pin sleeve 5 and the shaft pin 4 are separated, the pin 2 is restored to the initial state under the pressure of the spring 3, the oil injection passage is closed, the oil discharge passage is opened, and residual grease 7 flows out and is collected through the oil discharge hole 15.
The utility model discloses can improve the remaining oiling head of grease, through increasing logical stop mechanism at oiling mouth oil feed end, when annotating the fat promptly, the oil circuit is unobstructed, when not annotating the fat, the oil circuit disconnection just spills over from the overflow mouth. Compared with the prior art, use the utility model discloses when the mechanism oiling of the remaining oiling head of grease can be improved, can not cause secondary pollution to the work piece, the grease that spills over also can be collected and recycled.
The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.
Claims (7)
1. An oil filling head capable of improving grease residue comprises an oil filling head body provided with an oil filling hole and a workpiece mounting hole, wherein the oil filling hole is communicated with the workpiece mounting hole;
a floating ejector pin mechanism is arranged in the ejector pin mounting hole; the floating ejector pin mechanism is provided with a through hole and an oil discharge groove, and the oil filling hole, the through hole and the workpiece mounting hole are communicated to form an oil filling passage; the oil filling hole, the oil discharge groove and the oil discharge hole are communicated to form an oil discharge passage; in an initial state, the top of the floating ejector pin mechanism extends out of the oil filling head body, the oil filling passage is closed, and the oil discharging passage is opened;
when the oil filling head works, the top of the floating ejector pin mechanism is contracted into the oil filling head body after contacting a workpiece, the oil filling passage is opened, and the oil discharging passage is closed;
after oil injection is completed, the workpiece leaves, the floating ejector pin mechanism restores to the initial state, the oil injection passage is closed, and the oil discharge passage is opened.
2. The oil filling head capable of improving grease residue according to claim 1, wherein the floating top pin mechanism comprises a resetting mechanism and a pin which are connected with each other, and the through hole and the oil discharging groove are formed in the pin.
3. The oil filling head capable of improving grease residue according to claim 2, wherein the return mechanism is a spring.
4. The oil filling head capable of improving grease residue according to claim 2, wherein the pin comprises a head part and a rod part, the diameter of the head part is larger than that of the rod part, the through hole and the oil discharge groove are formed in the rod part of the pin, and the oil discharge groove is in a runway shape.
5. The oil filling head capable of improving the residual grease is characterized in that the oil filling head body is provided with an exhaust hole, the head of the pin is provided with an exhaust groove, and the exhaust hole is communicated with the exhaust groove.
6. The oil filling head capable of improving the residual grease according to claim 1, wherein the oil filling hole comprises an oil filling port and an oil inlet hole which are communicated with each other, the diameter of the oil filling port is larger than that of the oil inlet hole, and the oil inlet hole is communicated with the ejector pin mounting hole in a cross mode.
7. The oil filling head capable of improving grease retention according to claim 6, wherein the diameter of the oil inlet hole is the same as the diameter of the through hole in the floating knock pin mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221303412.9U CN217684346U (en) | 2022-05-27 | 2022-05-27 | Oiling head capable of improving grease residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221303412.9U CN217684346U (en) | 2022-05-27 | 2022-05-27 | Oiling head capable of improving grease residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217684346U true CN217684346U (en) | 2022-10-28 |
Family
ID=83703205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221303412.9U Active CN217684346U (en) | 2022-05-27 | 2022-05-27 | Oiling head capable of improving grease residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217684346U (en) |
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2022
- 2022-05-27 CN CN202221303412.9U patent/CN217684346U/en active Active
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