Regenerative hydraulic prop
By forming a turning ring on the periphery of the plunger pillar of the hydraulic strut and covering the repair plating layer, and filling the repair plating layer with longitudinal grooves, the scrapping problem caused by the coating wear of the hydraulic strut is solved, achieving higher durability and service life.
Patent Information
- Application Number
- CN202422184447.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-09-06
AI Technical Summary
In the long-term use of existing hydraulic pillars, the outer peripheral wear of the plunger pillar causes the original coating to wear, forming a large gap, resulting in the scrapping of the hydraulic pillars, and the coating of the regenerated hydraulic pillars is easy to be damaged and is not durable.
The turning ring is formed on the outer periphery of the plunger pillar and the repair plating is covered with the turning ring. The turning ring and the repair plating are more firmly combined. The longitudinal grooves connect the turning ring and fill the repair plating to make it level on the outer periphery of the plunger pillar.
The durability and long service life of the hydraulic struts are achieved, and the repair coating and plunger plunger combination is stronger, reducing costs and improving the performance of the regenerated hydraulic struts.
Smart Images
Figure CN222887044U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical equipment, specifically to a hydraulic prop. Background Art
[0002] The hydraulic prop includes a hydraulic prop body. The hydraulic prop body further includes an outer cylinder barrel and a plunger column inside the cylinder barrel. The cylinder barrel has an inner cavity, and the plunger column is installed inside the inner cavity. The plunger column has a layer of coating, which is the original coating. During long-term use, the outer periphery of the plunger column wears, especially the wear of the original coating. In this way, there is a large gap between the outer side of the plunger column and the inner side of the cylinder barrel, resulting in the scrapping of the entire hydraulic prop and inability to be used normally.
[0003] The scrapped hydraulic prop can be repaired again to form a regenerated hydraulic prop. The regeneration of the hydraulic prop is an important link to save costs.
[0004] In the prior art, the regeneration of the hydraulic prop is to directly electroplate a layer of coating on the outer periphery of the plunger column, that is, to form a layer of coating on the original coating. This layer of coating is a repair coating. Then, the repair coating is polished so that the repair coating can be re-fitted with the inner side of the cylinder barrel, that is, a regenerated hydraulic prop is formed. Such a regenerated hydraulic prop has the disadvantages that the coating is easy to be damaged and not durable, and it needs to be improved. Summary of the Invention
[0005] The purpose of the utility model is to provide a regenerated hydraulic prop that is durable and has a long service life in view of the above-mentioned disadvantages.
[0006] The technical solution adopted by the hydraulic prop of the utility model is: a regenerated hydraulic prop, including a hydraulic prop body. The hydraulic prop body further includes an outer cylinder barrel and a plunger column inside the cylinder barrel. The cylinder barrel has an inner cavity, and the plunger column is installed inside the inner cavity. The plunger column has a layer of coating, which is the original coating. The feature is that: the outer periphery of the plunger column has a turned ring with a recess formed by turning, and there is a coating covering the turned ring. This coating is a repair coating, and the repair coating is flat on the outside of the plunger column.
[0007] Furthermore, the turned rings are multiple, and the multiple turned rings are arranged at intervals on the outside of the plunger column.
[0008] Furthermore, the plunger column has a front end close to the bottom of the inner cavity and a rear end far from the bottom of the inner cavity. The density of the multiple turned rings near the front end is greater than that far from the front end.
[0009] Furthermore, there are longitudinal grooves connecting the turned rings. The repair coating also fills the longitudinal grooves and is flat on the outer periphery of the plunger column.
[0010] The beneficial effects of the present utility model are as follows: Such a hydraulic support has the advantages of being durable and having a long service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a schematic longitudinal sectional structure view of the present utility model.
[0012] Figure 2 is Figure 1 an enlarged view of part A in
[0013] Figure 3 is a side view of the plunger column of the present utility model before the repair coating is formed.
[0014] Wherein: 1, cylinder barrel; 11, inner cavity; 2, plunger column; 20, original coating; 21, turning ring; 22, longitudinal groove; 23, front end; 24, rear end; 3, repair coating. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The present utility model will be further described below with reference to the accompanying drawings.
[0016] As shown in Figure 1 , 2 , and 3, a regenerated hydraulic support includes a hydraulic support body, and the hydraulic support body further includes an outer cylinder barrel 1 and a plunger column 2 inside the cylinder barrel. The cylinder barrel has an inner cavity 11, and the plunger column is installed inside the inner cavity; the plunger column has a layer of coating, and this layer of coating is the original coating 20; the feature is that: the outer periphery of the plunger column has a turning ring 21 formed by turning, and there is also a coating covering the turning ring, and this coating is the repair coating 3, and the repair coating is flat on the outside of the plunger column.
[0017] Design principle: Since the repair coating is directly combined with the original coating, the repair coating is easily damaged, affecting the service life; because the present utility model forms a turning ring on the outside of the plunger column, the newly formed repair coating is more firmly combined with the plunger column, rather than the repair coating in the prior art being combined with the original coating, and the purpose of the present utility model can be achieved.
[0018] Furthermore, the turning rings are multiple, and the multiple turning rings are arranged at intervals on the outside of the plunger column.
[0019] With such a setting of the present utility model, it has the advantage that the repair coating is more firmly combined with the plunger column.
[0020] Furthermore, as shown in Figure 2 , the plunger column has a front end 23 close to the bottom of the inner cavity and a rear end 24 far from the bottom of the inner cavity, and the density of the multiple turning rings near the front end is greater than that far from the front end.
[0021] With this configuration, the present utility model also has the advantage of cost reduction because it is not necessary to form more dense turning rings at the part of the plunger column far from the front end.
[0022] Furthermore, there are longitudinal grooves 22 connecting the turning rings. The repair coating also fills the longitudinal grooves and is flat on the outer periphery of the plunger column.
[0023] With this configuration, the present utility model has the advantage that the repair coating and the plunger column are more firmly combined.
[0024] The above are only specific embodiments of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.
Claims
1. A regenerative hydraulic prop, comprising a hydraulic prop body, wherein the hydraulic prop body comprises an outer cylinder and a plunger inside the cylinder, wherein the cylinder has an inner cavity, wherein the plunger is installed inside the inner cavity, and wherein the plunger has a coating, which is an original coating; wherein: The outer periphery of the plunger column has a concave turning ring formed by turning, and a coating covers the turning ring. The coating is a repair coating, and the repair coating is flat on the outside of the plunger column.
2. The regenerative hydraulic prop according to claim 1, characterized in that: The turning ring is multi-pass, and the multi-pass turning rings are arranged at intervals outside the plunger.
3. The regenerative hydraulic prop according to claim 2, characterized in that: The plunger rod has a front end close to the bottom of the inner cavity and a rear end far from the bottom of the inner cavity. The multi-pass turning ring also has a density close to the front end greater than the density far from the front end.
4. The regenerative hydraulic prop according to claim 2 or 3, characterized in that: There is also a longitudinal groove connected to the turned ring, and the repair coating also fills the longitudinal groove and is flat on the outer periphery of the plunger rod.