CN212080141U - Sealing assembly of oil delivery connecting piece of oil pump check valve - Google Patents
Sealing assembly of oil delivery connecting piece of oil pump check valve Download PDFInfo
- Publication number
- CN212080141U CN212080141U CN202020862659.9U CN202020862659U CN212080141U CN 212080141 U CN212080141 U CN 212080141U CN 202020862659 U CN202020862659 U CN 202020862659U CN 212080141 U CN212080141 U CN 212080141U
- Authority
- CN
- China
- Prior art keywords
- section
- joint
- oil
- connecting piece
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a seal assembly of oil delivery connecting piece of oil pump check valve, oil delivery connecting piece has input chamber section, first output chamber section and second output chamber section, seal assembly includes first joint, second joint and sealing member, first joint and second joint all are ladder column setting and all have hollow inner chamber, first joint cup joints in first output chamber section, the inner chamber that the second joint inserted and passed first joint is connected with first output chamber section sealing, first internal thread has been seted up to the medial surface of first output chamber section, the second joint includes the sealing connection section, middle cartridge section and the shutoff connection section that the external diameter increases gradually in proper order, first external screw thread has been seted up to the lateral surface of sealing connection section, first external screw thread and first internal thread threaded connection, second output chamber section is sealed through the sealing member; the utility model provides an among the technical scheme, carry out the screw thread through first output chamber section and the second output chamber section to the oil transportation connecting piece and seal, make the sealed fastening in order to avoid the oil channeling in both ends of oil transportation connecting piece.
Description
Technical Field
The utility model relates to a sealed technical field of oil transportation connecting piece, in particular to oil transportation connecting piece's of oil pump check valve seal assembly.
Background
Generally, a grease pump is composed of a hydraulic drive motor and a pumping pipe, a piston rod is installed in the pumping pipe, the drive motor drives a crank block to rotate through an eccentric shaft, the crank block is connected with the upper end of the piston rod and drives the piston rod to move up and down, so that grease in a grease bucket is pumped out and is output through a grease delivery connecting piece of a check valve at the upper end of the pumping pipe, and then is delivered to each lubricating point of the excavator through each path of grease pipe. In order to reduce abrasion, the crank block, the one-way valve and the oil delivery connecting piece are all soaked in gear oil in the oil storage box, and the connecting part of the oil delivery connecting piece of the one-way valve at the upper end of the oil pumping pipe and the external joint is sealed by an O-shaped sealing ring.
Because the eccentric shaft drives the crank block to rotate, the one-way valve generates movement deviation of about 1mm from left to right under the rotation of the crank block, and through long-time accumulation effect, O-shaped sealing rings at two ends of the oil conveying connecting piece are seriously abraded and are not tightly sealed, so that grease in the oil conveying connecting piece is blown into gear oil, and oil blow-by faults occur.
Disclosure of Invention
The utility model aims at providing a seal assembly of oil delivery connecting piece of oil pump check valve, the O type circle that aims at solving current oil delivery connecting piece both ends leads to sealed not tight because wearing and tearing seriously, and then arouses the problem that the driving motor oil blowby shut down.
In order to achieve the above object, the utility model provides a sealing assembly of oil delivery connecting piece of oil pump check valve, the oil delivery connecting piece is installed in the oil storage box of oil pump, and the oil delivery connecting piece have hollow inner chamber and respectively with input chamber section, first output chamber section and the second output chamber section of inner chamber intercommunication, input chamber section connection oil pump oil pumping pipe's piston rod, sealing assembly includes first joint, second joint and sealing member, first joint and second joint all are ladder column setting and all have hollow inner chamber, first joint cup joint in first output chamber section, the second joint inserts and passes the inner chamber of first joint with first output chamber section sealing connection, first internal thread has been seted up to the medial surface of first output chamber section, the second joint includes the sealing connection section, the sealing connection section that the external diameter increases gradually in proper order, The middle plug-in mounting section and the plugging connecting section are arranged, a first external thread is arranged on the outer side surface of the sealing connecting section and is in threaded connection with a first internal thread, and the second output cavity section is sealed through a sealing element.
Preferably, the sealing element is a plug with a second external thread on the outer side surface, a second internal thread is arranged on the second output cavity section of the oil delivery connecting piece, and the second internal thread of the second output cavity section is in threaded connection with the second external thread of the plug.
Preferably, a friction groove is formed in the outer side surface of the plugging connecting section of the second joint, and the friction groove is used for being held by hands to connect and mount the second joint and the oil transportation connecting piece.
Preferably, the outer side surface of the first joint is provided with an external thread section, and the external thread section is used for installing and fixing the first joint on the oil storage box through threaded connection.
Preferably, the inner chamber of second joint is the setting of ladder chamber section, including the less first chamber section of internal diameter and the great second chamber section of internal diameter, first chamber section with the inner chamber of oil transportation connecting piece is linked together, second chamber section is linked together with first chamber section, and the internal thread section has been seted up to the medial surface of second chamber section, the internal thread section is used for linking to each other the defeated oil pipe of second joint and oil pump through threaded connection.
Preferably, the two ends of the oil transportation connecting piece are respectively sleeved with an O-shaped sealing ring at the joint corresponding to the first joint and the sealing piece.
In the technical scheme provided by the utility model, through the first joint cup joint in first output chamber section, the second joint inserts and passes the inner chamber of first joint with first output chamber section sealing connection, first internal thread has been seted up to the medial surface of first output chamber section, the second joint includes the sealed connection section, middle cartridge section and the shutoff connection section that the external diameter increases gradually in proper order, the lateral surface of sealed connection section has seted up first external screw thread, first external screw thread and first internal thread threaded connection, second output chamber section is sealed through the sealing member; the first output cavity section and the second output cavity section of the oil conveying connecting piece are in threaded sealing, so that the situation that the one-way valve moves and deviates under the rotation of the crank block to cause serious abrasion of O-shaped sealing rings at two ends of the oil conveying connecting piece is avoided, two ends of the oil conveying connecting piece are tightly sealed and fastened, the accident that a driving motor of an oil pump breaks down due to poor sealing is avoided, the fault rate of an equipment lubricating system is reduced, and the normal operation and safe production of main equipment are guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of a sealing assembly of an oil delivery connector of an oil pump check valve provided by the present invention;
fig. 2 is an exploded view of fig. 1.
The reference numbers illustrate: 1-oil delivery connecting piece, 11-input cavity section, 12-first output cavity section, 12 a-first internal thread, 13-second output cavity section, 13 a-second internal thread, 2-first joint, 2 a-external thread section, 3-second joint, 31-sealing connecting section, 31 a-first external thread, 32-middle plug-in mounting section, 33-blocking connecting section, 34-first cavity section, 35-second cavity section, 35 a-internal thread section, 4-sealing piece and 4 a-second external thread.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
The utility model provides a seal assembly of oil conveying connecting piece of oil pump check valve, the oil conveying connecting piece is installed in the oil storage box of oil pump, and oil conveying connecting piece 1 has hollow inner chamber and respectively with input chamber section 11, first output chamber section 12 and the second output chamber section 13 of inner chamber intercommunication, input chamber section 11 is connected oil pump oil pumping pipe's piston rod. Fig. 1 and fig. 2 are schematic diagrams of an embodiment of a sealing assembly of an oil delivery connector of an oil pump check valve according to the present invention.
Referring to fig. 1 and 2, the seal assembly of the oil delivery connection of the oil pump oil delivery connection comprises a first joint 2, a second joint 3 and a seal 4, the first joint 2 and the second joint 3 are both arranged in a stepped column shape and are both provided with hollow inner cavities, the first joint 2 is sleeved on the first output cavity section 12, the second joint 3 is inserted into and penetrates through the inner cavity of the first joint 2 to be connected with the first output cavity section 12 in a sealing way, the inner side surface of the first output cavity section 12 is provided with a first internal thread 12a, the second joint 3 comprises a sealing connecting section 31, a middle plug-in section 32 and a plugging connecting section 33, the outer diameters of which are gradually increased, the outer side surface of the sealing connection section 31 is provided with a first external thread 31a, the first external thread 31a is in threaded connection with the first internal thread 12a, and the second output cavity section 13 is sealed by a sealing element 4.
The utility model provides an among the technical scheme, through first joint 2 cup joint in first output chamber section 12, second joint 3 inserts and passes the inner chamber of first joint 2 with first output chamber section 12 sealing connection, first internal thread 12a has been seted up to the medial surface of first output chamber section 12, second joint 3 includes sealing connection section 31, middle cartridge section 32 and shutoff linkage section 33 that the external diameter increases gradually in proper order, first external screw thread 31a has been seted up to the lateral surface of sealing connection section 31, first external screw thread 31a and first internal thread 12a threaded connection, second output chamber section 13 is sealed through sealing member 4; the first output cavity section 12 and the second output cavity section 13 of the oil transportation connecting piece 1 are in threaded sealing, movement deviation of the check valve under rotation of the crank block is avoided, O-shaped sealing rings at two ends of the oil transportation connecting piece 1 are seriously abraded, two ends of the check valve 1 are tightly sealed, the accident that oil pumping of a driving motor of an oil pump is stopped due to poor sealing is avoided, the fault rate of an equipment lubricating system is reduced, and normal operation and safe production of main equipment are guaranteed.
In this embodiment, referring to fig. 1 and fig. 2, the sealing element 4 is a plug having an outer side surface provided with a second external thread 4a, the second output cavity section 13 of the oil transportation connecting element 1 is provided with a second internal thread 13a, and the second internal thread 13a of the second output cavity section 13 is in threaded connection with the second external thread 4a of the plug.
In this embodiment, a friction groove (not shown) is formed on an outer side surface of the plugging connecting section 33 of the second joint 3, and the friction groove is used for increasing a friction force on the outer side surface of the plugging connecting section 33, so that the second joint 3 and the oil transportation connecting piece 1 can be connected and mounted by being held by a hand.
In this embodiment, the first joint 2 is sleeved on the first output cavity section 12 of the oil transportation connecting piece 1, and plays a role in supporting and reinforcing the connection and fixation between the sealing connection section 31 of the second joint 3 and the first output cavity section 12 of the oil transportation connecting piece 1.
In this embodiment, referring to fig. 1 and fig. 2, an outer side surface of the first joint 2 is provided with an external thread section 2a, and the external thread section 2a is used for mounting and fixing the first joint 2 to the oil storage box through a threaded connection.
In this embodiment, referring to fig. 1 and fig. 2, the inner cavity of the second joint 3 is a stepped cavity segment, and includes a first cavity segment 34 with a smaller inner diameter and a second cavity segment 35 with a larger inner diameter, the first cavity segment 34 is communicated with the inner cavity of the oil transportation connecting part 1, the second cavity segment 35 is communicated with the first cavity segment 34, an inner thread segment 35a is disposed on an inner side surface of the second cavity segment 35, and the inner thread segment 35a is used for connecting the second joint 3 with an oil transportation pipe of an oil pump through thread connection.
In this embodiment, the two ends of the oil transportation connecting piece 1 are sleeved with O-ring seals (not shown) corresponding to the joints between the first joint 2 and the sealing element 4.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a seal assembly of oil delivery connecting piece of oil pump check valve, the oil delivery connecting piece is installed in the oil storage box of oil pump, and the oil delivery connecting piece has hollow inner chamber and input chamber section, first output chamber section and the second output chamber section with the inner chamber intercommunication respectively, the piston rod of oil pump oil pumping pipe is connected to the input chamber section, its characterized in that: seal assembly includes first joint, second joint and sealing member, first joint and second joint all are the ladder column setting and all have hollow inner chamber, first joint cup joint in first output chamber section, the second joint inserts and passes the inner chamber of first joint with first output chamber section sealing connection, first internal thread has been seted up to the medial surface of first output chamber section, the second joint includes that the external diameter increases gradually sealing connection section, middle cartridge section and shutoff linkage segment in proper order, first external screw thread has been seted up to the lateral surface of sealing connection section, first external screw thread and first internal thread threaded connection, second output chamber section is sealed through the sealing member.
2. The seal assembly of an oil delivery connection of an oil pump check valve as set forth in claim 1, wherein: the sealing element is a plug with a second external thread on the outer side surface, a second internal thread is arranged on a second output cavity section of the oil transportation connecting piece, and the second internal thread of the second output cavity section is in threaded connection with the second external thread of the plug.
3. The seal assembly of an oil delivery connection of an oil pump check valve as set forth in claim 1, wherein: and a friction groove is formed in the outer side surface of the plugging connecting section of the second joint.
4. The seal assembly of an oil delivery connection of an oil pump check valve as set forth in claim 1, wherein: the outer side surface of the first joint is provided with an external thread section.
5. The seal assembly of an oil delivery connection of an oil pump check valve as set forth in claim 1, wherein: the inner cavity of the second joint is a stepped cavity section and comprises a first cavity section with a smaller inner diameter and a second cavity section with a larger inner diameter, the first cavity section is communicated with the inner cavity of the oil transportation connecting piece, the second cavity section is communicated with the first cavity section, and the inner side surface of the second cavity section is provided with an inner thread section.
6. The seal assembly of an oil delivery connection of an oil pump check valve as set forth in claim 1, wherein: and O-shaped sealing rings are sleeved at the joints of the two ends of the oil transportation connecting piece, which correspond to the first joint and the sealing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020862659.9U CN212080141U (en) | 2020-05-21 | 2020-05-21 | Sealing assembly of oil delivery connecting piece of oil pump check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020862659.9U CN212080141U (en) | 2020-05-21 | 2020-05-21 | Sealing assembly of oil delivery connecting piece of oil pump check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212080141U true CN212080141U (en) | 2020-12-04 |
Family
ID=73568214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020862659.9U Active CN212080141U (en) | 2020-05-21 | 2020-05-21 | Sealing assembly of oil delivery connecting piece of oil pump check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212080141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958692A (en) * | 2021-10-22 | 2022-01-21 | 华能通辽风力发电有限公司 | Gear box hollow shaft sealing structure |
-
2020
- 2020-05-21 CN CN202020862659.9U patent/CN212080141U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958692A (en) * | 2021-10-22 | 2022-01-21 | 华能通辽风力发电有限公司 | Gear box hollow shaft sealing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212080141U (en) | Sealing assembly of oil delivery connecting piece of oil pump check valve | |
| CN110985522B (en) | Self-lubricating shaft and working machine | |
| CN112313435B (en) | Double seal lubrication packing gland and rotary sleeve | |
| CN101454572A (en) | Gear pump, in particular for a steering servo unit | |
| CN211039005U (en) | Wear-resistant split plunger for high-pressure plunger pump | |
| CN204851632U (en) | Gear oil pump | |
| CN112901478A (en) | Plunger pump | |
| JP4164549B2 (en) | Eccentric shaft joint structure and uniaxial eccentric screw pump with the eccentric shaft joint structure | |
| CN208442017U (en) | Pump installation | |
| CN209893092U (en) | Oiling device for tail bearing of oil pumping unit | |
| CN110836102B (en) | Polished rod blowout preventer | |
| CN220727080U (en) | Lubricant supply system for gear box and gear box | |
| CN202361046U (en) | Connecting shaft lubrication device | |
| CN215672853U (en) | Layered shear seal for skeleton pump | |
| JP3197850B2 (en) | Sealing material for cylinder | |
| CN118423412B (en) | Planetary reducer driven by small speed ratio | |
| CN204785473U (en) | Take grease squirt of relief valve | |
| CN211648064U (en) | Polish rod sealer device | |
| CN2846819Y (en) | Hydraulic long-term seal device for water pump | |
| US20210172438A1 (en) | Progressive cavity pump for the tintometric industry | |
| CN210396991U (en) | Manual hydraulic pump | |
| CN216666438U (en) | Transmission case and tractor | |
| CN218235466U (en) | Gear pump | |
| CN111140457A (en) | Plunger type metering pump with replaceable plunger, pump head of plunger type metering pump and multi-cylinder plunger type metering pump | |
| CN110792521A (en) | Engine gear chamber, engine and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |