Sealing structure after abrasion of shaft end of hydraulic pump

Abstract

The utility model relates to the technical field of shaft sealing, and provides a sealing structure for a worn hydraulic pump shaft end, which comprises a main body and a rubber pad, a rubber pad is arranged on one side of the main body, a hydraulic pump shaft is installed in the middle of the main body, a protective cover is arranged on the outer side of the hydraulic pump shaft on one side of the main body, and an installation structure is arranged on one side of the main body. According to the sealing structure, when the sealing seat is installed, the sealing bolt is installed in the installation hole through the preformed hole so as to position the sealing seat, sealing treatment is conducted through the sealing ring in the using process, and the shaft end and the sealing ring can be abraded in the using process; and in the using process, the movable block is pushed through the extrusion spring, and the sealing ring is in a sealing state all the time through the evenly-distributed reset springs, so that the phenomena of leakage and the like are not prone to occurring, and the purposes that the sealing effect is conveniently improved, and the sealing effect is not affected after part of the sealing ring is abraded are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sealing, in particular to a sealing structure for a hydraulic pump shaft end after wear. Background Art

[0002] With the development of the times, hydraulic pumps are used in all walks of life. During the machining process, the high-pressure liquid provided by the hydraulic pump drives the movement of the hydraulic cylinder to move the worktable of the machine tool up and down, front and back, left and right, thereby realizing the positioning and processing of the workpiece. However, leakage and other phenomena may occur during actual use, which will affect its overall use effect, making it difficult to meet actual use needs. Therefore, it is necessary to use sealing equipment to seal it, thereby increasing the working effect of the device.

[0003] However, the hydraulic pump may cause wear and tear on the shaft end and the sealing ring during use, making it difficult for the device to meet actual use requirements during the sealing process, and thus has certain limitations during use. Utility Model Content

[0004] The utility model aims to provide a seal structure for a hydraulic pump shaft end after wear, so as to solve the defect that the sealing effect of the existing hydraulic pump seal structure may be affected due to partial wear.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a sealing structure for the shaft end of a hydraulic pump after wear, comprising a main body and a rubber pad;

[0006] A rubber pad is provided on one side of the main body, a hydraulic pump shaft is installed in the middle position of the main body, a protective cover is provided on the outer side of the hydraulic pump shaft on one side of the main body, and a mounting structure is opened on one side of the main body;

[0007] The protective cover is provided with mounting holes evenly on one side away from the main body, and a sealing structure is provided on one side of the protective cover;

[0008] The sealing structure includes a sealing seat, a reserved hole, a sealing bolt, a slide groove, an annular block, a moving block, an extrusion spring, a sealing ring, a built-in groove, a return spring, a Z-shaped block and a positioning bolt. The sealing seat is arranged on one side of the protective cover, and the outer side of the sealing seat is evenly provided with reserved holes. The inside of the reserved holes is provided with sealing bolts. The sealing seat is provided with a slide groove on the side away from the protective cover, and the inside of the slide groove is provided with an annular block. A moving block is provided on one side of the annular block. An extrusion spring is evenly fixed on one side of the moving block. A sealing ring is provided on the side of the moving block away from the extrusion spring. Built-in grooves are evenly provided on the outer side of the sealing ring in the sealing seat, and return springs are provided inside the built-in grooves. Z-shaped blocks are evenly provided on one end of the annular block, and positioning bolts are passed through one end of the Z-shaped block.

[0009] Preferably, the mounting structure includes a limit groove, a limit block, a protrusion, a mounting bolt, a groove and a fixing bolt. The limit groove is opened on one side of the main body, the limit blocks are all arranged on the side of the protective cover close to the main body, the protrusions are evenly arranged on the outer wall of one side of the protective cover, and the inside of the protrusions is penetrated by the mounting bolts, the grooves are evenly opened on the outer wall of the protective cover, and the inside of the grooves is penetrated by the fixing bolts.

[0010] Preferably, the limiting blocks are all arranged inside the limiting grooves, and the protrusions are distributed at equal intervals on the outer wall of the protective cover.

[0011] Preferably, one side of the mounting bolt extends to the interior of the main body, and the protrusion and the main body are threadedly connected via the mounting bolt.

[0012] Preferably, the grooves are symmetrically distributed on both sides of the outer wall of the protective cover, and the two groups of protective covers are connected to each other through the grooves and fixing bolts.

[0013] Preferably, one side of the sealing bolt extends to the inside of the mounting hole, the extrusion springs are distributed at equal intervals on one side of the moving block, the end of the extrusion spring away from the moving block is fixedly connected to one side of the annular block, and one side of the return spring is in conflict with the sealing ring.

[0014] Preferably, one side of the positioning bolts extends to the interior of the sealing seat, and the Z-shaped block and the sealing seat are threadedly connected via the positioning bolts.

[0015] The utility model provides a hydraulic pump shaft end wear sealing structure, which has the following advantages:

[0016] By providing a sealing structure, when installing the sealing seat, the sealing bolt is installed into the inside of the mounting hole through the reserved hole to position the sealing seat, and the sealing ring is sealed during use. During use, the shaft end and the sealing ring will wear out. During use, the moving block is pushed by the extrusion spring and the evenly distributed return springs so that the sealing ring is always in a sealed state, making it less likely to leak, etc., thereby achieving the purpose of improving the sealing effect and not affecting the sealing effect after partial wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional splitting structure of the utility model;

[0019] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0020] Figure 4 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0021] Figure 5 This is an enlarged structural diagram of point A of the present invention.

[0022] Explanation of the reference numerals in the figure: 1. Main body; 2. Rubber pad; 3. Hydraulic pump shaft; 4. Protective cover; 5. Mounting structure; 501. Limiting groove; 502. Limiting block; 503. Protrusion; 504. Mounting bolt; 505. Groove; 506. Fixing bolt; 6. Mounting hole; 7. Sealing structure; 701. Sealing seat; 702. Reserved hole; 703. Sealing bolt; 704. Slide; 705. Annular block; 706. Moving block; 707. Extrusion spring; 708. Sealing ring; 709. Built-in groove; 710. Reset spring; 711. Z-shaped block; 712. Positioning bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 5 The utility model provides a sealing structure for a hydraulic pump shaft end after wear, which includes a main body 1 and a rubber pad 2.

[0025] Reference Figure 1-Figure 3 As shown, a rubber pad 2 is provided on one side of the main body 1, a hydraulic pump shaft 3 is installed at the middle position of the main body 1, a protective cover 4 is provided on the outside of the hydraulic pump shaft 3 on one side of the main body 1, and a mounting structure 5 is provided on one side of the main body 1. The mounting structure 5 includes a limiting groove 501, a limiting block 502, a protrusion 503, a mounting bolt 504, a groove 505 and a fixing bolt 506. The limiting groove 501 is provided on one side of the main body 1, the limiting blocks 502 are all provided on the side of the protective cover 4 close to the main body 1, the protrusions 503 are evenly provided on the outer wall of one side of the protective cover 4, and the protrusions 503 are evenly provided on the outer wall of the protective cover 4. The interior of each is penetrated by mounting bolts 504, grooves 505 are evenly opened on the outer wall of the protective cover 4, and fixing bolts 506 are penetrated inside the grooves 505. The limiting blocks 502 are arranged inside the limiting grooves 501, and the protrusions 503 are evenly spaced on the outer wall of the protective cover 4. One side of the mounting bolts 504 extends to the interior of the main body 1, and the protrusions 503 and the main body 1 are threadedly connected through the mounting bolts 504. The grooves 505 are symmetrically distributed on both sides of the outer wall of the protective cover 4, and the two groups of protective covers 4 are connected to each other through the grooves 505 and the fixing bolts 506.

[0026] During the use of the hydraulic pump, its shaft needs to be protected. By providing a mounting structure 5, the device facilitates the installation of two sets of protective covers 4 through mounting bolts 504, and the two sets of protective covers 4 are positioned and installed by fixing bolts 506 inside the grooves 505, so that the protective covers 4 are not likely to fall off during use, thereby greatly increasing the protection effect of the device on the hydraulic pump shaft 3.

[0027] Reference Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown, the protective cover 4 is evenly provided with mounting holes 6 on the side away from the main body 1, and a sealing structure 7 is provided on one side of the protective cover 4. The sealing structure 7 includes a sealing seat 701, a reserved hole 702, a sealing bolt 703, a slide 704, an annular block 705, a moving block 706, an extrusion spring 707, a sealing ring 708, a built-in groove 709, a reset spring 710, a Z-shaped block 711 and a positioning bolt 712. The sealing seat 701 is provided on one side of the protective cover 4, and the outer side of the sealing seat 701 is evenly provided with reserved holes 702, and the inside of the reserved holes 702 is provided with sealing bolts 703. The sealing seat 701 is away from the protective cover 4. A slide 704 is provided on the inside of the slide 704, and an annular block 705 is provided. A moving block 706 is provided on one side of the annular block 705, and an extrusion spring 707 is evenly fixed on one side of the moving block 706. 7. A sealing ring 708 is provided on the side of the moving block 706 away from the extrusion spring 707. Built-in grooves 709 are evenly provided on the outer side of the sealing ring 708 inside the sealing seat 701. Return springs 710 are provided inside the built-in grooves 709. Z-shaped blocks 711 are evenly provided on one end of the annular block 705. Positioning bolts 712 are passed through one end of the Z-shaped blocks 711. One side of the sealing bolts 703 extends to the inside of the mounting hole 6. The extrusion springs 707 are evenly spaced on one side of the moving block 706. The extrusion springs 707 are fixedly connected to one side of the annular block 705 at one end away from the moving block 706. One side of the return springs 710 conflicts with the sealing ring 708. One side of the positioning bolts 712 extends to the inside of the sealing seat 701. The Z-shaped block 711 and the sealing seat 701 are threadedly connected by the positioning bolts 712.

[0028] In order to increase the stability of the hydraulic pump during use, its shaft end needs to be sealed. By providing a sealing structure 7, the device can easily install the sealing seat 701 to one side of the protective cover 4 through the sealing bolt 703, and seal it through the sealing ring 708. When the sealing ring 708 is worn during use, the extrusion spring 707 pushes the moving block 706 to extrude it, and the return spring 710 pushes it inward, so that its sealing effect is not easily affected, thereby greatly increasing the practicality of the device.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sealing structure for a hydraulic pump shaft end after wear, comprising a main body (1) and a rubber pad (2); Its characteristics are: A rubber pad (2) is provided on one side of the main body (1), a hydraulic pump shaft (3) is installed at the middle position of the main body (1), a protective cover (4) is provided on the outer side of the hydraulic pump shaft (3) on one side of the main body (1), and a mounting structure (5) is provided on one side of the main body (1); The side of the protective cover (4) away from the main body (1) is evenly provided with mounting holes (6), and a sealing structure (7) is provided on one side of the protective cover (4); The sealing structure (7) comprises a sealing seat (701), a reserved hole (702), a sealing bolt (703), a sliding groove (704), an annular block (705), a moving block (706), an extrusion spring (707), a sealing ring (708), a built-in groove (709), a return spring (710), a Z-shaped block (711) and a positioning bolt (712); the sealing seat (701) is arranged on one side of the protective cover (4); the outer side of the sealing seat (701) is evenly provided with the reserved holes (702); the interior of the reserved holes (702) is provided with sealing bolts (703); and the side of the sealing seat (701) away from the protective cover (4) is provided with a sliding groove (704). An annular block (705) is provided inside the slide groove (704), a moving block (706) is provided on one side of the annular block (705), an extrusion spring (707) is evenly fixed on one side of the moving block (706), a sealing ring (708) is provided on the side of the moving block (706) away from the extrusion spring (707), a built-in groove (709) is evenly opened on the outside of the sealing ring (708) inside the sealing seat (701), a reset spring (710) is provided inside the built-in groove (709), a Z-shaped block (711) is evenly provided at one end of the annular block (705), and a positioning bolt (712) is passed through one end of the Z-shaped block (711).

2. A hydraulic pump shaft end wear sealing structure according to claim 1, characterized in that: The mounting structure (5) comprises a limiting groove (501), a limiting block (502), a protrusion (503), a mounting bolt (504), a groove (505) and a fixing bolt (506); the limiting groove (501) is provided on one side of the main body (1); the limiting blocks (502) are provided on a side of the protective cover (4) close to the main body (1); the protrusions (503) are evenly provided on the outer wall of one side of the protective cover (4); the interior of the protrusions (503) is penetrated by the mounting bolt (504); the grooves (505) are evenly provided on the outer wall of the protective cover (4); the interior of the grooves (505) is penetrated by the fixing bolt (506).

3. A hydraulic pump shaft end wear sealing structure according to claim 2, characterized in that: The limiting blocks (502) are all arranged inside the limiting grooves (501), and the protrusions (503) are distributed at equal intervals on the outer wall of the protective cover (4).

4. A hydraulic pump shaft end wear sealing structure according to claim 2, characterized in that: One side of the mounting bolt (504) extends to the interior of the main body (1), and the protrusion (503) and the main body (1) are threadedly connected via the mounting bolt (504).

5. The hydraulic pump shaft end wear sealing structure according to claim 2, characterized in that: The grooves (505) are symmetrically distributed on both sides of the outer wall of the protective cover (4), and the two groups of protective covers (4) are connected to each other via the grooves (505) and fixing bolts (506).

6. The hydraulic pump shaft end wear sealing structure according to claim 1, characterized in that: One side of the sealing bolt (703) extends to the inside of the mounting hole (6), the extrusion spring (707) is distributed at equal intervals on one side of the moving block (706), the end of the extrusion spring (707) away from the moving block (706) is fixedly connected to one side of the annular block (705), and one side of the return spring (710) is in contact with the sealing ring (708).

7. The hydraulic pump shaft end wear sealing structure according to claim 1, characterized in that: One side of the positioning bolt (712) extends to the interior of the sealing seat (701), and the Z-shaped block (711) and the sealing seat (701) are threadedly connected via the positioning bolt (712).

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