Composite wear-resistant cylinder bottom structure

Abstract

The utility model discloses a composite wear-resistant cylinder bottom structure which comprises a cylinder bottom body, a protective sleeve is embedded in the position, close to the end face, of the inner wall of the cylinder bottom body in a penetrating mode, the two ends of the protective sleeve extend out of the two side walls of the cylinder bottom body respectively, and the inner wall of the protective sleeve is coated with a wear-resistant coating so that the wear resistance of the inner wall of the protective sleeve can be improved. The protective sleeve is embedded in the cylinder bottom, the wear-resistant effect of the cylinder bottom in long-time use can be improved by the aid of the protective sleeve, so that the service life of the cylinder bottom is prolonged, the wear-resistant coating is coated on the inner wall of the protective sleeve, wear-resistant treatment can be performed on the inner wall of the protective sleeve, the service life of the protective sleeve is further prolonged, and the service life of the cylinder bottom is prolonged. Therefore, the service life of the whole cylinder bottom is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder application technology, and in particular to a composite wear-resistant cylinder bottom structure. Background Technology

[0002] In existing hydraulic cylinders, pneumatic cylinders, and other equipment, the cylinder bottom is an important component that bears pressure and friction. It needs to be connected to the external structure so that the hydraulic cylinder can rotate properly during use to complete the extension and retraction operation.

[0003] Currently, some cylinder bottoms are treated by surface coating or complete replacement to address wear issues. However, surface coatings have limited wear resistance and a short service life; replacing the entire cylinder bottom is costly, complex, and wasteful of resources. Therefore, this invention proposes a composite wear-resistant cylinder bottom structure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a composite wear-resistant cylinder bottom structure. By embedding a protective sleeve inside the cylinder bottom, the wear resistance of the cylinder bottom can be increased during long-term use, thereby increasing its service life. Furthermore, a wear-resistant coating is applied to the inner wall of the protective sleeve, which can be used to treat the inner wall of the protective sleeve to make it wear-resistant, further increasing the service life of the protective sleeve, thereby extending the service life of the entire cylinder bottom.

[0005] To solve the above technical problems, the present invention adopts a technical solution as follows: a composite wear-resistant cylinder bottom structure is provided, including a cylinder bottom body, wherein a protective sleeve is embedded through the inner wall of the cylinder bottom body near the end face, and the two ends of the protective sleeve extend out of the two side walls of the cylinder bottom body respectively.

[0006] The inner wall of the protective sleeve is coated with a wear-resistant coating to increase the wear resistance of the inner wall of the protective sleeve.

[0007] The present invention is further configured such that: an installation hole is provided on the cylinder bottom body near the end face, and the outer wall of the protective sleeve is tightly fitted to the inner wall of the installation hole.

[0008] The above technical solution facilitates the connection of the mounting hole to the external structure through its internal protective sleeve, thereby improving the service life of the mounting hole.

[0009] The present invention is further configured such that: both ends of the inner wall of the mounting hole are provided with a chamfer, both ends of the protective sleeve are fixedly connected with end edges, the opposite surfaces of the two end edges are provided with a chamfer, and the two chamfers are respectively abutted against the two chamfers.

[0010] The above technical solution facilitates the stable fit of the chamfered ends of the protective sleeve to the chamfered ends of the mounting hole after the protective sleeve is squeezed into the mounting hole, thereby fixing the position of the two ends of the protective sleeve.

[0011] The present invention is further configured such that: an embedded ring is fixedly connected to the middle position of the outer wall of the protective sleeve, and the embedded ring is embedded in an embedded groove opened at the middle position of the inner wall of the mounting hole.

[0012] The above technical solution facilitates the installation of the protective sleeve by using the embedded ring for quick positioning and installation inside the mounting hole, thereby improving the installation effect.

[0013] The present invention is further configured such that the cross-sections of the embedding ring and the embedding groove are both V-shaped, and the interior of the embedding groove is pressed against the top of the embedding ring.

[0014] The above technical solution facilitates the insertion of the protective sleeve into the mounting hole, allowing the two side walls of the insert ring to fit tightly against the two inner walls of the insert groove under the compression of the insert groove, thereby improving the connection stability between the protective sleeve and the mounting hole.

[0015] The present invention is further configured such that: the inner wall of the protective sleeve is uniformly and fixedly connected with a plurality of protective protrusions, and the plurality of protective protrusions are all arranged in a hemispherical shape.

[0016] The above technical solution utilizes multiple protective protrusions to increase the wear resistance of the protective cover during long-term use and extend its wear time.

[0017] The present invention is further configured such that the wear-resistant coating is a polymer coating.

[0018] The above technical solution has an extremely low coefficient of friction and good wear resistance. It can maintain its physical properties even in environments with temperatures tens of degrees below zero Celsius, without becoming hard or brittle, and can effectively reduce wear between the piston rod and the piston rod.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. The composite wear-resistant cylinder bottom structure proposed in this utility model has a protective sleeve embedded inside the cylinder bottom. The protective sleeve can increase the wear resistance of the cylinder bottom during long-term use, thereby increasing its service life.

[0021] 2. The composite wear-resistant cylinder bottom structure proposed in this utility model has a wear-resistant coating applied to the inner wall of the protective sleeve, which enables the inner wall of the protective sleeve to be wear-resistant, thereby increasing the service life of the protective sleeve and extending the service life of the entire cylinder bottom. Attached Figure Description

[0022] Figure 1 This is a structural diagram of a composite wear-resistant cylinder bottom structure according to the present invention;

[0023] Figure 2 This is a side view of a composite wear-resistant cylinder bottom structure according to the present invention;

[0024] Figure 3 This is a cross-sectional view of a composite wear-resistant cylinder bottom structure according to the present invention;

[0025] Figure 4 This is a structural diagram of the cylinder bottom body in a composite wear-resistant cylinder bottom structure according to this utility model;

[0026] Figure 5 This is a cross-sectional view of the cylinder bottom body in a composite wear-resistant cylinder bottom structure according to this utility model.

[0027] Figure 6 This is a structural diagram of the protective sleeve in a composite wear-resistant cylinder bottom structure according to this utility model;

[0028] Figure 7 This is a cross-sectional view of the protective sleeve in a composite wear-resistant cylinder bottom structure according to this utility model.

[0029] In the diagram: 1. Cylinder bottom body; 11. Mounting hole; 12. Fitting chamfer; 13. Embedding groove; 2. Protective sleeve; 21. End edge; 22. Fitting chamfer; 23. Embedding ring; 24. Protective protrusion; 3. Wear-resistant coating. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0031] like Figures 1-7As shown, a composite wear-resistant cylinder bottom structure includes a cylinder bottom body 1. A protective sleeve 2 is embedded through the inner wall of the cylinder bottom body 1 near the end face, and the two ends of the protective sleeve 2 extend out of the two side walls of the cylinder bottom body 1. An installation hole 11 is provided near the end face of the cylinder bottom body 1. The outer wall of the protective sleeve 2 is tightly fitted to the inner wall of the installation hole 11, so that the installation hole 11 can be fitted to the external structure through the protective sleeve 2 inside, thereby improving the service life of the installation hole 11. Both ends of the inner wall of the installation hole 11 are provided with a chamfer 12. Both ends of the protective sleeve 2 are fixedly connected with end edges 21. The opposite surfaces of the two end edges 21 are provided with a chamfer 22, and the two chamfers 22 are respectively abutted against the two chamfers 12. This makes it easy for the chamfers 22 at both ends to be stably fitted to the chamfers 12 of the installation hole 11 after the protective sleeve 2 is installed in the installation hole 11 by compression, thereby fixing the position of the two ends of the protective sleeve 2.

[0032] An embedded ring 23 is fixedly connected to the middle of the outer wall of the protective sleeve 2. The embedded ring 23 is embedded in the embedded groove 13 opened in the middle of the inner wall of the mounting hole 11. When installing the protective sleeve 2, it can be quickly positioned and installed inside the mounting hole 11 by the embedded ring 23, thereby improving the installation effect. The cross-section of the embedded ring 23 and the embedded groove 13 are both V-shaped. The inside of the embedded groove 13 is pressed against the top of the embedded ring 23. When the protective sleeve 2 is inserted into the mounting hole 11, the two side walls of the embedded ring 23 can be tightly fitted to the two inner walls of the embedded groove 13 under the pressure of the embedded groove 13, which improves the connection stability between the protective sleeve 2 and the mounting hole 11. Multiple protective protrusions 24 are evenly fixedly connected to the inner wall of the protective sleeve 2. The multiple protective protrusions 24 are all hemispherical. The multiple protective protrusions 24 can increase the wear resistance of the protective sleeve 2 during long-term use and extend its wear time.

[0033] like Figure 1 and Figure 6 As shown, the inner wall of the protective sleeve 2 is coated with a wear-resistant coating 3 to increase the wear resistance of the inner wall of the protective sleeve 2. The wear-resistant coating 3 is a high-molecular polymer coating, which has an extremely low coefficient of friction and good wear resistance. It can still maintain its physical properties in environments with temperatures of tens of degrees below zero Celsius, and will not become hard or brittle, thus effectively reducing wear between the sleeve and the piston rod.

[0034] In use, the cylinder bottom body 1 installed on the cylinder body can rotate on the external structure through the mounting hole 11. The protective sleeve 2 inside the mounting hole 11 can protect the inner wall of the mounting hole 11, thereby improving the service life of the mounting hole 11. At the same time, the wear-resistant coating 3 applied to the inner wall of the protective sleeve 2 can further enhance the wear resistance of the protective sleeve 2 during operation.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A composite wear-resistant cylinder bottom structure, comprising a cylinder bottom body (1), characterized in that: A protective sleeve (2) is embedded through the inner wall of the cylinder bottom body (1) near the end face, and the two ends of the protective sleeve (2) extend out of the two side walls of the cylinder bottom body (1). The inner wall of the protective sleeve (2) is coated with a wear-resistant coating (3) to increase the wear resistance of the inner wall of the protective sleeve (2).

2. The composite wear-resistant cylinder bottom structure according to claim 1, characterized in that: The cylinder bottom body (1) has an installation hole (11) near the end face, and the outer wall of the protective sleeve (2) is tightly fitted to the inner wall of the installation hole (11).

3. The composite wear-resistant cylinder bottom structure according to claim 2, characterized in that: The inner wall of the mounting hole (11) is provided with a chamfer (12) at both ends. The protective sleeve (2) is fixedly connected with end edges (21) at both ends. The opposite surfaces of the two end edges (21) are provided with chamfers (22), and the two chamfers (22) are respectively abutted against the two chamfers (12).

4. The composite wear-resistant cylinder bottom structure according to claim 3, characterized in that: An embedded ring (23) is fixedly connected to the middle of the outer wall of the protective sleeve (2), and the embedded ring (23) is embedded in the embedded groove (13) opened in the middle of the inner wall of the mounting hole (11).

5. The composite wear-resistant cylinder bottom structure according to claim 4, characterized in that: The cross-sections of the embedded ring (23) and the embedded groove (13) are both V-shaped, and the interior of the embedded groove (13) is pressed against the top of the embedded ring (23).

6. The composite wear-resistant cylinder bottom structure according to claim 1, characterized in that: The inner wall of the protective sleeve (2) is uniformly fixedly connected with multiple protective protrusions (24), and the multiple protective protrusions (24) are all hemispherical.

7. The composite wear-resistant cylinder bottom structure according to claim 1, characterized in that: The wear-resistant coating (3) is a polymer coating.

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