Boosted volumetric distributor
By designing a pressurized volumetric distributor in the lubrication system of textile machinery and integrating a metering structure, the problems of complex distributor structure and easy oil leakage were solved, and the effects of simplified assembly and prevention of oil backflow were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HONGYU MASCH CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-06-30
AI Technical Summary
The distributors in existing textile machinery lubrication systems have complex structures, are cumbersome to assemble, are prone to oil leakage, and the metering structure is difficult to assemble, resulting in oil return problems.
A booster-type volumetric distributor was designed, which integrates a booster metering structure into the distributor body, including a metering and discharge channel, a reversing channel and a piston channel. It adopts a reversing valve assembly and a piston assembly to achieve a built-in booster metering function.
It simplifies the structure of the lubrication system, improves assembly efficiency, simplifies the installation process, prevents oil backflow, and enhances the reliability of the lubrication system.
Smart Images
Figure CN224434111U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lubrication system technology for textile equipment, and in particular to a volumetric distributor for oil circuit distribution, specifically a booster-type volumetric distributor. Background Technology
[0002] In the lubrication system of textile machinery, the lubricating oil discharged by the oil pump needs to be distributed to various parts requiring lubrication via a distributor. Existing distributors typically branch off from the main oil line into multiple branches, serving only a diversion function. In practice, metering devices are usually installed on each branch to achieve quantitative oil dispensing. This setup is cumbersome and inefficient for users during installation, and the numerous joints increase the risk of oil leakage. Furthermore, existing metering structures suffer from difficulties in assembly and are prone to backflow, issues that urgently need to be addressed. Utility Model Content
[0003] The purpose of this invention is to provide a booster-type volumetric distributor to solve the technical problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a booster-type volumetric distributor, comprising a distributor body, wherein the distributor body is provided with a main oil circuit connected to an oil pump, and a plurality of booster metering structures, each connected to the main oil circuit, are arranged in parallel within the distributor body; the booster metering structure includes a metering discharge channel opened in the distributor body and connected to the main oil circuit, and an oil outlet connector fixedly connected to the port of the metering discharge channel; the metering discharge channel sequentially includes an oil inlet hole, a reversing channel, and a piston channel, wherein a reversing valve assembly is provided in the reversing channel; the piston channel is provided with a valve stem and a piston assembly sleeved on the valve stem, wherein the valve stem is axially penetrating internally, and a valve hole is provided at one end of the valve stem away from the oil outlet connector, and at least one oil discharge hole is opened on the side of the end of the valve stem near the oil outlet connector; the two ends of the reversing valve assembly correspond to the oil inlet hole and the valve hole, respectively.
[0005] Preferably, the reversing assembly includes a reversing valve, and the reversing valve has a diaphragm with an opening facing the oil outlet connector.
[0006] Preferably, the reversing valve is provided with two sets of diaphragm cups.
[0007] Preferably, the valve stem is provided with an E-type retaining ring on one side near the valve hole, the E-type retaining ring abutting against the stepped surface at the connection between the piston channel and the reversing channel, and the other end of the valve stem abutting against the oil outlet connector.
[0008] Preferably, there are two drain holes, which are symmetrically distributed along the circumference of the valve stem.
[0009] Preferably, the piston assembly includes, in sequence, a gasket, an O-ring, and a bushing fitted over the valve stem. The bushing is fitted with a compression spring, which provides elastic force to cause the bushing to tend to move away from the oil outlet joint.
[0010] Preferably, the oil outlet connector is threaded to the metering oil discharge channel port, and a sealing ring is provided at the connection.
[0011] Compared with the prior art, the advantages of this invention are as follows: By integrating the booster metering structure into the distributor, the distributor gains a built-in booster metering function, simplifying the structure of the lubrication system and improving assembly efficiency. Furthermore, the installation of the booster metering structure is simpler; the piston assembly can be pre-fitted onto the valve stem for quick assembly, and the effect of preventing oil backflow is also enhanced. Attached Figure Description
[0012] Figure 1 This is a cross-sectional structural diagram of the present invention.
[0013] Figure 2 This is an exploded structural diagram of the present invention.
[0014] Figure 3 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following embodiments will provide a more detailed description of this utility model.
[0016] Example: Boosted volumetric distributor, see reference. Figure 1-3 It includes a distributor body 6, which has a main oil passage 11 connected to an oil pump. Two boosting metering structures are provided on one side of the main oil passage 11. The boosting metering structure includes a metering oil discharge channel opened in the distributor body and connected to the main oil passage, and an oil outlet connector 1 threaded to the port of the metering oil discharge channel, and a sealing ring 2 is provided at the connection.
[0017] In the above structure, the metering and discharge channel includes an oil inlet hole 12, a reversing channel 13 and a piston channel 14 in sequence. The oil inlet hole 12 is connected to the main oil circuit 11. The reversing channel 13 is equipped with a reversing valve assembly. The piston channel 14 is equipped with a valve stem 3 and a piston assembly sleeved on the valve stem 3.
[0018] The reversing valve assembly includes a reversing valve 10. The reversing valve 10 has two sets of piston cups with openings facing the oil outlet connector. The piston cups allow the lubricating oil in the main oil circuit to pass through the reversing channel 13 in only one direction. The two sets of piston cups can further ensure the sealing effect and prevent oil backflow.
[0019] The valve stem 3 is axially continuous, with a valve hole 15 at the end away from the oil outlet connector and two symmetrical oil drain holes 16 at the side of the end near the oil outlet connector. The side of the valve stem 3 with the valve hole has an annular groove, and an e-type retaining ring 9 is installed in the annular groove. The e-type retaining ring 9 fixes the valve stem 3 in the metering oil drain channel. Specifically, the e-type retaining ring 9 abuts against the stepped surface at the connection between the piston channel 14 and the reversing channel 13, and the other end abuts against the inside of the oil outlet connector 1.
[0020] The piston assembly sequentially includes a gasket 8, an O-ring 7, and a bushing 4, all fitted over the valve stem. The O-ring 7 serves a sealing function. In this embodiment, the space above the O-ring 7 is named the oil reservoir, and the space below the O-ring 7 is named the oil injection chamber. The end of the bushing 4 closest to the O-ring is flared outwards. A compression spring 5 is fitted over the bushing 4, with one end of the spring abutting against the flared end of the bushing and the other end abutting against the oil outlet connector 1.
[0021] In its specific implementation, this embodiment includes the following steps:
[0022] 1. When the oil pump is working, the output pressure lubricating oil enters the reversing channel 13 through the oil inlet hole 12, pushing the reversing valve 10 upward;
[0023] 2. When the reversing valve 10 blocks the valve hole 15, the pressure oil overcomes the spring force of the compression spring 5 and gradually pushes the piston assembly upward. The lubricating oil in the oil storage chamber is gradually discharged through the oil drain hole 16 and the oil outlet connector 1.
[0024] 3. The pressurized oil gradually pushes the piston assembly to the end of the oil reservoir. At this time, the lubricating oil in the oil reservoir is completely drained, and the system pressure rises, gradually reaching the rated working pressure.
[0025] 4. When the oil pump stops supplying oil, the oil pump pressure relief valve opens, and the main oil pipe pressure oil flows back to the oil tank. The pressure gradually decreases, and the piston assembly resets under the spring force of the compression spring 5. The pressure oil in the oil injection chamber pushes the reversing valve 10 down, opening the valve hole 15 and sealing the oil inlet hole 12. The lubricating oil in the oil injection chamber flows into the oil storage chamber from the valve hole 15 and the oil drain hole 16, and is gradually metered. The piston assembly returns to the bottom, the metering is completed, and reserves are prepared for the next cycle of oil supply.
[0026] 5. The system operates according to the lubrication system rest-1-2-3-4 cycle.
[0027] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A supercharged volumetric dispenser comprising a dispenser body in which a main oil passage is provided which is connected to an oil pump, characterized in that, The distributor body is provided with several boosting and metering structures that are connected to the main oil circuit respectively; the boosting and metering structure includes a metering and discharge channel opened in the distributor body and connected to the main oil circuit, and an oil outlet connector fixedly connected to the port of the metering and discharge channel. The metering and draining channel includes an oil inlet hole, a reversing channel, and a piston channel in sequence. A reversing valve assembly is provided in the reversing channel. A valve stem and a piston assembly sleeved on the valve stem are provided in the piston channel. The valve stem is axially oriented and has a valve hole at the end away from the oil outlet connector and at least one drain hole on the side of the end closer to the oil outlet connector. The two ends of the reversing valve assembly correspond to the oil inlet hole and the valve hole, respectively.
2. The pressurized volumetric dispenser of claim 1, wherein, The reversing valve assembly includes a reversing valve, and the reversing valve has a diaphragm with an opening facing the oil outlet connector.
3. The pressurized volumetric dispenser of claim 2, wherein, The reversing valve is equipped with two sets of diaphragm cups.
4. The pressurized volumetric dispenser of claim 1, wherein, The valve stem is provided with an E-type retaining ring on one side near the valve hole. The E-type retaining ring abuts against the stepped surface at the connection between the piston channel and the reversing channel. The other end of the valve stem abuts against the oil outlet connector.
5. The pressurized volumetric dispenser of claim 1, wherein, There are two drain holes, which are symmetrically distributed along the circumference of the valve stem.
6. The pressurized volumetric dispenser of claim 1, wherein, The piston assembly includes, in sequence, a gasket, an O-ring, and a bushing fitted around the valve stem. A compression spring is fitted over the bushing, and the compression spring provides elastic force that causes the bushing to tend to move away from the oil outlet joint.
7. The pressurized volumetric dispenser of claim 1, wherein, The oil outlet connector is threaded to the metering oil discharge channel port, and a sealing ring is provided at the connection.