Bionic concrete piston
By designing a tree-shaped oil conveying tank structure on the concrete piston, the wear problems caused by uneven diffusion of lubricating oil and extrusion of fine particles are solved, and the rapid transportation of lubricating oil and wear reduction are achieved, and the service life of the piston is extended.
Patent Information
- Application Number
- CN202310832486.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-08
- Publication Date
- 2025-01-10
AI Technical Summary
When existing concrete pistons pump concrete, the lubricating oil cannot spread rapidly, resulting in insufficient lubrication of the friction part, and the fine particles in the concrete are easily squeezed and wear, reducing the life of the piston.
A bionic concrete piston is designed, adopting a tree-shaped oil conveying tank structure, which connects the oil storage tank through the first oil storage bar and the second oil storage bar. The tree-shaped oil conveying tank consists of a tree trunk channel and a branch channel, and is distributed on the working surface to ensure that Lubricating oil can be delivered quickly to worn surfaces.
Through the lubricating oil delivery mechanism of the tree network, the lubricating effect is improved, the wear of the piston is reduced, and its service life is extended.
Smart Images
Figure CN119288826A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of concrete pistons, in particular to a bionic concrete piston. Background Art
[0002] The concrete piston is a commonly used consumable part of concrete pump trucks. The main function of the concrete piston is to pump concrete. To pump concrete to a height of several tens of meters, the concrete piston and the concrete cylinder need to have a large interference fit to seal the concrete. Due to the large interference fit, the concrete piston and the cylinder have a large relative speed, so the friction between the concrete piston and the cylinder is relatively large. The concrete piston will wear during the friction process, and lubricating oil is usually used to reduce wear. Summary of the invention
[0003] The purpose of the present invention is to provide a bionic concrete piston. The existing concrete piston has a friction surface that is an inclined plane with a certain angle. The lubricating oil is lubricated on the inclined plane through the oil storage tank. The present invention can solve the following problems: first, the lubricating oil cannot be quickly diffused to the entire inclined plane. Second, during the pumping stroke, the concrete piston is subjected to the pressure of the concrete and the interference fit, so the amount of lubricating oil in the friction part is small, causing the concrete piston to be easily worn. Third, the fine particles in the concrete will be squeezed onto the concrete piston, causing the concrete piston to be easily worn and having a short service life.
[0004] To achieve the above-mentioned purpose, the present invention provides a bionic concrete piston, including a piston, a first oil storage rib and a second oil storage rib distributed circumferentially of the piston, an oil storage groove is provided between the first oil storage rib and the second oil storage rib, and a plurality of tree-like oil delivery grooves are evenly distributed circumferentially of the concrete piston, the tree-like oil delivery grooves are composed of a trunk channel and a branch channel, the trunk channel is connected to the oil storage groove, and the tree-like oil delivery grooves are distributed on a working surface.
[0005] ] Optimized, the top diameter of the piston is larger than the bottom diameter of the piston, which facilitates the installation and disassembly of the piston.
[0006] Optimally, preferably, an inner groove is provided inside the piston, and an angle between the inclined surface of the inner groove and the cross-section of the piston is 30°-40°.
[0007] Optimally, a notch is provided inside the piston, and the notch is located at the bottom of the inner groove, which is beneficial to the process molding of the piston.
[0008] The beneficial effects of the present invention are: The lubricating oil in the oil storage tank of the bionic concrete piston of the present invention is quickly transported to the wear surface and the wear part through the tree-like network, thereby increasing the lubrication effect, reducing wear and prolonging the service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.
[0010] Figure 1 It is a structural schematic diagram of the present invention; In the figure: 1. First oil storage rib; 2. Oil storage tank; 3. Second oil storage rib; 4. Working surface; 5. Tree-shaped oil delivery tank; 5-1, tree trunk channel; 5-2, branch channel.
[0011] Figure 2 It is an axial cross-sectional view of the present invention.
[0012] Figure 3 It is an axonometric drawing of the present invention.
Claims
1. A bionic concrete piston, comprising a piston (1), characterized in that: The first oil storage rib (2) and the second oil storage rib (3) are distributed around the piston (1), an oil storage groove (4) is provided between the first oil storage rib (2) and the second oil storage rib (3), a plurality of tree-shaped oil delivery grooves (5) are evenly distributed around the concrete piston, the tree-shaped oil delivery grooves (5) are composed of a trunk channel (6) and a branch channel (7), the trunk channel (6) is connected to the oil storage groove (4), and the tree-shaped oil delivery grooves (5) are distributed on a working surface (8).
2. The bionic concrete piston according to claim 1, characterized in that: The top diameter of the piston (1) is greater than the bottom diameter of the piston (1).
3. The bionic concrete piston according to claim 1, characterized in that: The depth of the tree-shaped oil delivery grooves (5) is 1-4 mm and they are evenly distributed on the working surface (8). The number of the tree-shaped oil delivery grooves (5) is appropriately adjusted according to the diameter of the piston top.
4. The bionic concrete piston according to claim 1, characterized in that: The number of the trunk channels (6) is the same as the number of the tree-shaped oil delivery grooves (5), and they are evenly distributed on the circumferential surface of the second oil storage rib (3).
5. The bionic concrete piston according to claim 3, characterized in that: The tree-shaped oil delivery grooves (5) are all arranged on the surface of the inclined working surface (8), the angle between the branch channel (7) and the trunk channel (6) is 30°-60°, and the tree-shaped oil delivery grooves (5) are 2-3 mm away from the top of the working surface (8) to prevent the lubricating oil from flowing to a position outside the tree-shaped oil delivery grooves (5).
6. The bionic concrete piston according to claim 3, characterized in that: The angle between the working surface (8) and the axial direction is 10°-30°.