Wear-resistant diesel engine cylinder sleeve

Abstract

The utility model discloses a wear-resistant diesel engine cylinder sleeve, relates to the technical field of diesel engine accessories, and provides the following scheme that the wear-resistant diesel engine cylinder sleeve comprises a shell main body, and a clamping rod and a positioning groove are arranged, so that when the diesel engine cylinder sleeve is used daily, the use stability is improved when the cylinder sleeve is disassembled and assembled; the situation that the cylinder sleeve is loosened after being installed due to vibration generated by the diesel engine after being used for a long time is prevented, a wear-resisting sleeve can be inserted into the shell, a connecting column slides into the inner wall of a positioning groove, the wear-resisting sleeve is rotated, the positioning groove conducts clamping movement on the connecting column, and therefore the cylinder sleeve is prevented from being loosened after being installed. And under the condition that the connecting part of the clamping block and the clamping rod is in an arc shape, the telescopic rod and the spring are driven to perform extrusion motion until the clamping rod slides into the inner wall of the clamping groove, the effect of clamping and fixing the connecting column is achieved, and the effect of improving the clamping installation and use stability of the wear-resistant sleeve in the shell is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine parts, in particular to a wear-resistant diesel engine cylinder liner. Background Technique

[0002] The cylinder liner is a cylindrical part, and the piston reciprocates in its inner hole. When the traditional cylinder liner is cooled, it is cooled by cooling water. However, the temperature of the cooling water at the water inlet is higher than that at the water outlet, resulting in poor cooling effect at the end of the cylinder liner close to the water outlet and reducing the wear resistance of the cylinder liner.

[0003] After retrieval, according to the patent network CN218760146U, a wear-resistant diesel engine cylinder liner includes a housing and a cooling assembly, and also includes a mounting assembly; the mounting assembly includes a wear-resistant cylinder, a threaded ring, a positioning post, a spring and a ejector post. When installing the wear-resistant cylinder, insert the wear-resistant cylinder into the housing, align the positioning groove at the bottom of the wear-resistant cylinder with the positioning post, then press down the wear-resistant cylinder to make the wear-resistant cylinder squeeze the ejector post and compress the spring by the ejector post. Finally, tighten the threaded ring on the housing to install the wear-resistant cylinder. When disassembling the wear-resistant cylinder, unscrew the threaded ring. At this time, the spring resets, pushes the ejector post upward, and drives the wear-resistant cylinder to move upward, facilitating the removal of the wear-resistant cylinder, so as to realize that the wear-resistant cylinder can be disassembled and replaced, and avoid replacing the whole wear-resistant diesel engine cylinder liner when the wear-resistant cylinder is worn.

[0004] However, when the existing cylinder liner is in use, although the cylinder liner can be conveniently disassembled and used, the fixing effect after the cylinder liner is clamped and installed is not high. When the diesel engine is used for a long time, the clamping state of the cylinder liner will become loose due to the vibration generated by the diesel engine, reducing the long-term use stability of the cylinder liner and not meeting the use requirements of people. Therefore, a wear-resistant diesel engine cylinder liner is needed. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a wear-resistant diesel engine cylinder liner, which solves the problem of low fixing effect after the cylinder liner is installed in the prior art.

[0006] To achieve the above object, the present utility model provides the following technical solution: a wear-resistant diesel engine cylinder liner, including a housing main body, an annular cooling pipe is arranged on the inner wall of the housing main body, a connecting cooling pipe extending to the outer wall of the housing main body is fixedly connected to the outer wall of the annular cooling pipe, a wear-resistant sleeve fitting the outer wall of the annular cooling pipe is detachably connected to the inner wall of the housing main body, a connecting column slidably connected to the inner wall of the housing main body is fixedly connected to the outer wall of the wear-resistant sleeve, a positioning groove is formed at the connecting part of the inner wall of the housing main body and the connecting column, a connecting block is fixedly connected to the inner wall of the positioning groove, a fixing block is fixedly connected to the outer wall of the connecting column, a clamping block is fixedly connected to the outer wall of the fixing block, a telescopic rod is telescopically connected to the outer wall of the connecting block, a spring fixedly connected to the outer wall of the connecting block is sleeved on the outer wall of the telescopic rod, a pulling block fixedly connected to one end of the telescopic rod is fixedly connected to one end of the spring, a clamping rod slidably connected to the outer wall of the clamping block is fixedly connected to one end of the telescopic rod, and a clamping groove is formed at the connecting part of the outer wall of the clamping block and the clamping rod.

[0007] Preferably, the length of the annular cooling pipe is adapted to the length of the wear-resistant sleeve.

[0008] Preferably, the connecting column and the positioning groove are symmetrically arranged on both sides of the wear-resistant sleeve.

[0009] Preferably, the outer wall contour of the positioning groove is in an "L" shape, and the inner wall contour of the positioning groove is adapted to the outer wall contour of the connecting column.

[0010] Preferably, the connecting block is arranged on the movement track of the fixing block.

[0011] Preferably, the pulling block extends to the outer wall of the housing main body.

[0012] Preferably, the outer wall contour of the extrusion part of the clamping block and the clamping rod is arc-shaped, and the inner wall contour of the clamping groove is larger than the outer wall contour of the clamping rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] By setting the clamping rod and the positioning groove, when the diesel engine cylinder liner is in daily use, in order to improve the stability during the disassembly and installation of the cylinder liner, and prevent the vibration generated during the long-term use of the diesel engine from causing the cylinder liner to become loose after installation, the wear-resistant sleeve can be inserted into the outer shell, and the connecting column can be slid into the inner wall of the positioning groove. Then, rotate the wear-resistant sleeve so that the positioning groove clamps the connecting column, driving the connecting block and the fixed block to fit together. When the connection part between the clamping block and the clamping rod is arc-shaped, it drives the telescopic rod and the spring to be compressed until the clamping rod slides into the inner wall of the clamping groove, playing a role in clamping and fixing the connecting column, and achieving the effect of improving the stability of the wear-resistant sleeve during clamping and installation in the outer shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. 6 is a schematic diagram of the overall structure of a wear-resistant diesel engine cylinder liner proposed by the present utility model;

[0016] Figure 2 FIG. 10 is a schematic diagram of the overall internal structure of a wear-resistant diesel engine cylinder liner proposed by the present utility model;

[0017] Figure 3 FIG. 14 is a schematic diagram of the position distribution structure of the positioning groove of a wear-resistant diesel engine cylinder liner proposed by the present utility model;

[0018] Figure 4 FIG. 18 is a schematic diagram of the position distribution structure of the connecting column of a wear-resistant diesel engine cylinder liner proposed by the present utility model;

[0019] Figure 5 FIG. 22 is a schematic diagram of the connection structure between the clamping rod and the clamping groove of a wear-resistant diesel engine cylinder liner proposed by the present utility model.

[0020] In the figure: 1. Outer shell main body; 2. Annular cooling pipe; 3. Connecting cooling pipe; 4. Wear-resistant sleeve; 5. Connecting column; 6. Positioning groove; 7. Connecting block; 8. Fixed block; 9. Clamping block; 10. Telescopic rod; 11. Spring; 12. Pulling block; 13. Clamping rod; 14. Clamping groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment

[0023] As Figures 1-5As shown in the figure, a wear-resistant diesel engine cylinder liner includes a housing main body 1. An annular cooling pipe 2 is provided on the inner wall of the housing main body 1. A connecting cooling pipe 3 extending to the outer wall of the housing main body 1 is fixedly connected to the outer wall of the annular cooling pipe 2. A wear-resistant sleeve 4 that fits against the outer wall of the annular cooling pipe 2 is detachably connected to the inner wall of the housing main body 1. A connecting column 5 that is slidably connected to the inner wall of the housing main body 1 is fixedly connected to the outer wall of the wear-resistant sleeve 4. A positioning groove 6 is provided at the connection part between the inner wall of the housing main body 1 and the connecting column 5. A connecting block 7 is fixedly connected to the inner wall of the positioning groove 6. A fixing block 8 is fixedly connected to the outer wall of the connecting column 5. A clamping block 9 is fixedly connected to the outer wall of the fixing block 8. A telescopic rod 10 is telescopically connected to the outer wall of the connecting block 7. A spring 11 fixedly connected to the outer wall of the connecting block 7 is sleeved on the outer wall of the telescopic rod 10. One end of the spring 11 is fixedly connected to a pulling block 12 fixedly connected to one end of the telescopic rod 10. One end of the telescopic rod 10 is fixedly connected to a clamping rod 13 that slides on the outer wall of the clamping block 9. A clamping groove 14 is provided at the connection part between the outer wall of the clamping block 9 and the clamping rod 13.

[0024] Among them, as Figure 2 shown, the length of the annular cooling pipe 2 is adapted to the length of the wear-resistant sleeve 4, which is beneficial to effectively cooling and wearing the outer wall of the cylinder liner by the matching setting of the length of the annular cooling pipe 2 and the length of the wear-resistant sleeve 4.

[0025] Among them, as Figure 2 shown, the connecting column 5 and the positioning groove 6 are both symmetrically arranged on both sides of the wear-resistant sleeve 4, which is beneficial to conveniently disassembling and assembling the cylinder liner by the symmetric arrangement of the connecting column 5 and the positioning groove 6 on both sides of the wear-resistant sleeve 4.

[0026] Among them, as Figure 3 shown, the outer wall contour of the positioning groove 6 is in an "L" shape, and the inner wall contour of the positioning groove 6 is adapted to the outer wall contour of the connecting column 5, which is beneficial to improving the convenience of clamping and installing the connecting column 5 inside the housing by the setting of the outer wall contour of the positioning groove 6 being in an "L" shape.

[0027] Among them, as Figure 3 shown, the connecting block 7 is arranged on the movement track of the fixing block 8, which is beneficial to improving the clamping and installation stability of the wear-resistant sleeve inside the housing by the setting of the connecting block 7 being arranged on the movement track of the fixing block 8.

[0028] Among them, as Figure 1 shown, the pulling block 12 extends to the outer wall of the housing main body 1, which is beneficial to conveniently disassembling the wear-resistant sleeve by the setting of the pulling block 12 extending to the outer wall of the housing main body 1.

[0029] Among them, as Figure 5As shown, the outer wall contour of the extrusion part of the clamping block 9 and the clamping rod 13 is arc-shaped, and the inner wall contour of the clamping groove 14 is larger than the outer wall contour of the clamping rod 13. This is beneficial for the arc-shaped setting of the outer wall contour of the extrusion part of the clamping block 9 and the clamping rod 13 to play a role in clamping and fixing the connecting column 5, achieving the effect of improving the stability of the wear-resistant sleeve 4 during clamping installation and use within the outer shell.

[0030] During use: When the diesel engine cylinder liner is in daily use, in order to improve the stability during disassembly and installation of the cylinder liner and prevent the vibration generated during the long-term use of the diesel engine from causing the cylinder liner to become loose after installation, the wear-resistant sleeve 4 can be inserted into the outer shell, and the connecting column 5 can be made to slide into the inner wall of the positioning groove 6. Then, rotate the wear-resistant sleeve 4 so that the positioning groove 6 performs a clamping movement on the connecting column 5, driving the connecting block 7 and the fixed block 8 to fit together. In the case where the connection part between the clamping block 9 and the clamping rod 13 is arc-shaped, it drives the telescopic rod 10 and the spring 11 to perform an extrusion movement until the clamping rod 13 slides into the inner wall of the clamping groove 14, playing a role in clamping and fixing the connecting column 5, achieving the effect of improving the stability of the wear-resistant sleeve 4 during clamping installation and use within the outer shell.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant diesel engine cylinder liner, comprising a shell body (1), characterized in that: The inner wall of the shell body (1) is provided with an annular cooling pipe (2), the outer wall of the annular cooling pipe (2) is fixedly connected with a connecting cooling pipe (3) extending to the outer wall of the shell body (1), the inner wall of the shell body (1) is detachably connected with a wear-resistant sleeve (4) that fits the outer wall of the annular cooling pipe (2), the outer wall of the wear-resistant sleeve (4) is fixedly connected with a connecting column (5) that is slidably connected to the inner wall of the shell body (1), a positioning groove (6) is provided at the connection portion between the inner wall of the shell body (1) and the connecting column (5), the inner wall of the positioning groove (6) is fixedly connected with a connecting block (7), and the connecting column (5) is fixedly connected with the inner wall of the positioning groove (6). The outer wall of the connecting block (5) is fixedly connected to a fixing block (8), the outer wall of the fixing block (8) is fixedly connected to a clamping block (9), the outer wall of the connecting block (7) is telescopically connected to a telescopic rod (10), the outer wall of the telescopic rod (10) is sleeved with a spring (11) fixedly connected to the outer wall of the connecting block (7), one end of the spring (11) is fixedly connected to a pulling block (12) fixedly connected to one end of the telescopic rod (10), one end of the telescopic rod (10) is fixedly connected to a clamping rod (13) slidably connected to the outer wall of the clamping block (9), and a clamping groove (14) is provided at the connection portion between the outer wall of the clamping block (9) and the clamping rod (13).

2. The wear-resistant diesel engine cylinder liner according to claim 1, characterized in that: The length of the annular cooling pipe (2) is configured to match the length of the wear-resistant sleeve (4).

3. The wear-resistant diesel engine cylinder liner according to claim 1, characterized in that: The connecting column (5) and the positioning groove (6) are symmetrically arranged on both sides of the wear-resistant sleeve (4).

4. The wear-resistant diesel engine cylinder liner according to claim 1, characterized in that: The outer wall profile of the positioning groove (6) is in an "L" shape, and the inner wall profile of the positioning groove (6) is adapted to be arranged to match the outer wall profile of the connecting column (5).

5. The wear-resistant diesel engine cylinder liner according to claim 1, characterized in that: The connecting block (7) is arranged on the movement track of the fixing block (8).

6. The wear-resistant diesel engine cylinder liner according to claim 1, characterized in that: The pulling block (12) extends to the outer wall of the housing body (1).

7. The wear-resistant diesel engine cylinder liner according to claim 1, characterized in that: The outer wall contours of the extrusion parts of the clamping block (9) and the clamping rod (13) are in an arc shape, and the inner wall contour of the clamping groove (14) is larger than the outer wall contour of the clamping rod (13).

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