Valve bridge guide rod with multiple layers of oil sinking holes
By designing multi-layer square grooves and semicircular oil sinkers on the valve bridge guide rod, combined with the design of long oil storage holes and oil channels, the problem of poor lubrication effect in the existing technology is solved, multi-zone lubrication and oil storage supply is achieved, extending the service life of the engine and avoiding wear and failure.
Patent Information
- Application Number
- CN202422936388.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The lubrication effect of the existing valve bridge guide rod is poor, which leads to lag in cooperation with the valve bridge and the guide rod after the engine runs for a long time. In severe cases, it will wear and cause engine failure.
A valve bridge guide rod with multiple layers of oil sinking holes is designed. The side of the guide rod is equipped with several square grooves and semicircular oil sinking grooves. Four circular oil channels are provided on the side of the square grooves. The center of the guide rod is equipped with long oil storage holes, which are connected to the square grooves and oil sinking grooves through the oil channels to realize multi-zone lubrication and oil storage supply.
Through the design of multi-layer square grooves and semicircular oil sinks, multi-zone lubrication and oil storage supply are achieved, avoiding the problem of intermittent insufficient lubricating oil supply, extending the service life of the engine, and avoiding wear and failure of valve bridges and guide rods.
Smart Images
Figure CN223048867U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of engines, in particular to a valve bridge guide rod with multiple layers of sunken oil holes. Background Art
[0002] In an engine, a valve bridge is installed on a guide rod, and the guide rod plays a supporting role. During the operation of the engine, the valve bridge moves up and down at high speed in the guide rod, and lubrication is carried out between the guide section and the valve bridge through lubricating oil. In the existing guide rod, it is a smooth rod without an oil groove designed, and the guide rod with an oil groove is not designed with a storage groove and cannot store lubricating oil. When the intermittent supply of lubricating oil is insufficient, the lubrication effect is not good. After the engine runs for a long time, the cooperation between the valve bridge and the guide rod will appear stuck, and in severe cases, the valve bridge and the guide rod will wear, resulting in engine failure.
[0003] The disclosure of the above background art content is only used to assist in understanding the inventive concept and technical solution of the utility model, and it does not necessarily belong to the prior art of this patent application. Without clear evidence showing that the above content was publicly available on the filing date of this patent application, the above background art should not be used to evaluate the novelty and creativity of this application. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a valve bridge guide rod with multiple layers of sunken oil holes, so as to solve the problems that the existing valve bridge guide rod has poor lubrication effect, the cooperation between the valve bridge and the guide rod will appear stuck after the engine runs for a long time, and in severe cases, the valve bridge and the guide rod will wear, resulting in engine failure.
[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
[0006] A valve bridge guide rod with multiple layers of sunken oil holes, characterized in that the lower part of the valve bridge guide rod is a positioning seat, and the upper part of the valve bridge guide rod is a guide rod; a plurality of layers of square grooves are evenly arranged on the side of the guide rod, a semi-circular sunken oil groove is arranged at the lower part of the square groove, a chamfer is arranged at the side of the semi-circular sunken oil groove, four circular oil channels are evenly arranged on the side of the square groove, a storage oil long hole is arranged at the center of the guide rod, and the storage oil long hole is communicated with the square groove and the semi-circular sunken oil groove through the oil channels.
[0007] Further, the positioning seat and the guide rod are cylindrical, and the diameter of the positioning seat is larger than the diameter of the guide rod.
[0008] Further, the depth of the storage oil long hole is lower than the square groove on the side of the guide rod.
[0009] Further, the height of the square groove is 2 mm to 6 mm.
[0010] Further, the depth of the square groove is 3 mm to 6 mm.
[0011] Further, the depth of the semi-circular oil sump is 2 mm to 5 mm.
[0012] Further, the diameter of the oil passage is 1 mm to 3 mm.
[0013] Further, the diameter of the long oil storage hole is 6 mm to 8 mm.
[0014] Compared with the prior art, the advantages and beneficial effects of the present utility model are as follows:
[0015] On the side of the guide rod of the present utility model, several layers of square grooves are provided to achieve lubrication of the guide rod in multiple areas; a semi-circular oil sump is provided at the lower part of the square groove, which can store oil to prevent the lubricating oil from overflowing through the chamfer when the guide rod moves up and down due to insufficient intermittent supply of lubricating oil to lubricate the guide rod; at the same time, the long oil storage hole is connected to the square groove and the semi-circular oil sump through the oil passage, which can ensure the lubrication of the entire guide rod, solve the problem that the cooperation between the valve bridge and the guide rod will be stuck after the engine runs for a long time, and in severe cases, the valve bridge and the guide rod will be worn, resulting in engine failure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the present utility model;
[0017] Figure 2 is a cross-sectional view of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The present utility model will be further described in detail below in conjunction with the specific embodiments. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present utility model.
[0019] Such as Figure 1 and Figure 2As shown in the figure, a valve bridge guide rod with multiple layers of oil-sinking holes is characterized in that the lower part of the valve bridge guide rod 1 is a positioning seat 2, and the upper part of the valve bridge guide rod 1 is a guide rod 3. The positioning seat 2 and the guide rod 3 are cylindrical, and the diameter of the positioning seat 2 is greater than that of the guide rod 3. A plurality of layers of square grooves 4 are evenly arranged on the side of the guide rod 3 for guiding oil to lubricate the guide rod 3. The height of the square groove 4 is 2 mm to 6 mm, and the depth of the square groove 4 is 3 mm to 6 mm, and the size can be designed according to the displacement or model of the engine. A semi-circular oil-sinking groove 5 is arranged below the square groove 4. The depth of the semi-circular oil-sinking groove 5 is 2 mm to 5 mm, and the size can be designed according to the displacement or model of the engine. A chamfer 6 is arranged on the side of the semi-circular oil-sinking groove 5, which can store oil to prevent the lubricating oil from overflowing through the chamfer 6 when the guide rod 3 moves up and down due to insufficient intermittent supply of lubricating oil to lubricate the guide rod 3. Four circular oil channels 7 are evenly arranged on the side of the square groove 4 for guiding oil to introduce the lubricating oil into the square groove 4 and the semi-circular oil-sinking groove 5. The diameter of the oil channel 7 is 1 mm to 3 mm, and the size can be designed according to the displacement or model of the engine. A long oil storage hole 8 is arranged in the center of the guide rod 3. The diameter of the long oil storage hole 8 is 6 mm to 8 mm, and the size can be designed according to the displacement or model of the engine. The depth of the long oil storage hole 8 is lower than that of the square groove 4 on the side of the guide rod 3. The long oil storage hole 8 is communicated with the square groove 4 and the semi-circular oil-sinking groove 5 through the oil channel 7.
[0020] The above content is a further detailed description of the present invention in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several alternatives or modifications can be made to these described embodiments, and these alternative or modified ways should be regarded as belonging to the protection scope of the present invention.
Claims
1. A valve bridge guide rod with multi-layer oil sink holes, characterized in that: The lower part of the valve bridge guide rod is a positioning seat, and the upper part of the valve bridge guide rod is a guide rod; the side of the guide rod is evenly provided with several layers of square grooves, the lower part of the square groove is provided with a semicircular oil sinking groove, the side of the semicircular oil sinking groove is provided with a chamfer, and the side of the square groove is evenly provided with four circular oil channels, and the center of the guide rod is provided with a long oil storage hole, and the long oil storage hole is connected with the square groove and the semicircular oil sinking groove through the oil channel.
2. A valve bridge guide rod with multi-layer oil sink holes according to claim 1, characterized in that: The positioning seat and the guide rod are cylindrical, and the diameter of the positioning seat is larger than the diameter of the guide rod.
3. The valve bridge guide rod with multi-layer oil sink holes according to claim 1, characterized in that: The depth of the oil storage long hole is lower than the square groove on the side of the guide rod.
4. The valve bridge guide rod with multi-layer oil sink holes according to claim 1, characterized in that: The height of the square groove is 2 mm to 6 mm.
5. The valve bridge guide rod with multi-layer oil sinking holes according to claim 1, characterized in that: The depth of the square groove is 3 mm to 6 mm.
6. The valve bridge guide rod with multi-layer oil sinking holes according to claim 1, characterized in that: The depth of the semicircular oil sinking groove is 2mm to 5mm.
7. The valve bridge guide rod with multi-layer oil sink holes according to claim 1, characterized in that: The diameter of the oil channel is 1 mm to 3 mm.
8. The valve bridge guide rod with multi-layer oil sink holes according to claim 1, characterized in that: The diameter of the oil storage long hole is 6mm to 8mm.