Wear-resistant oil delivery pump rotor

Abstract

The utility model relates to an oil delivery pump rotor, belongs to the technical field of oil delivery pumps, and particularly relates to a wear-resistant oil delivery pump rotor, which comprises an oil delivery pump cover, an eccentric wheel clamped on the oil delivery pump cover, an oil pump shaft rotatably connected on the oil delivery pump cover, a rotor body fixedly connected on the oil pump shaft, a wear-resistant component and a fixing component. According to the device, the abrasion-resistant assembly is matched with the sliding block through the sliding frame, the sliding block, the rotating wheel, the first spring, the connecting rod, the sliding groove and the sliding block, the rotating wheel on the sliding block makes contact with the inner wall of the eccentric wheel, friction between the sliding block and the eccentric wheel is reduced, and therefore the service life of the device is prolonged; and the fixing assembly is matched with a second spring through a groove, a push plate, a connecting block, a limiting rod and the limiting rod, and the sliding frame is fixed in the rotor body through the limiting rod and the connecting block, so that the sliding frame can be quickly fixed and disassembled, the sliding block can be conveniently replaced in the later period, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pumps, in particular to a wear-resistant oil pump rotor. Background Art

[0002] During actual use, one side of the vane rotor of some existing common rail oil pumps will always rub against the inner wall of the eccentric ring, resulting in large friction loss and greatly shortening the service life of the vane.

[0003] The Chinese patent with announcement number CN217712780U discloses a vane rotor of a centrifugal common rail oil pump, including an oil pump cover, the front side of the oil pump cover is fixedly connected to the outer shell, the center of the oil pump cover is rotatably connected to the oil pump shaft, the front end of the oil pump shaft passes through the rear side of the inner wall of the outer shell and extends to the interior of the outer shell, and the front end of the oil pump shaft is rotatably connected to the center of the front side of the inner wall of the outer shell. This patent can form rolling friction between the rotor vanes and the inner wall of the eccentric ring, thereby greatly reducing the wear of the rotor vanes, avoiding the generation of more metal powder to contaminate the oil during use, and can also greatly extend the service life of the rotor vanes, and can keep the front and rear sides of the rotor body connected during cleaning, so as to facilitate the cleaning liquid to flush the interior, improve the cleaning effect, and the disassembly and installation operation of the entire device is relatively simple, which is convenient for later maintenance and repair.

[0004] In the above technical solution, when the vane or the guide wheel needs to be maintained, the rotor body needs to be pulled out from the eccentric wheel. Since the spring sheet presses against the rotor vane and the guide wheel on the rotor vane contacts the inner wall of the eccentric wheel, when the rotor body moves outward, it encounters friction resistance between the guide wheel and the eccentric wheel, making it difficult to pull out the rotor body. Utility Model Content

[0005] The technical problem to be solved by the present invention is that the rotor body is subjected to the friction resistance of the guide wheel and the eccentric wheel, and is difficult to be pulled out from the eccentric wheel; in response to the problem, a wear-resistant oil pump rotor is proposed, including an oil pump cover, an eccentric wheel is clamped on the oil pump cover, an oil pump shaft is rotatably connected to the oil pump cover, and the rotor body is fixedly connected to the oil pump shaft, and a wear-resistant component is provided on the rotor body, and the wear-resistant component includes a sliding frame, a sliding block, a rotating wheel and a spring. The four sliding frames are slidably connected to the rotor body, and the four sliding blocks are respectively slidably connected to the four sliding frames, and the multiple rotating wheels are respectively rotatably connected to the four sliding blocks. The two ends of the multiple springs are respectively fixedly connected to the four sliding frames and the four sliding blocks, and a fixed component is provided in the rotor body.

[0006] The technical solution of the present invention is that the wear-resistant component cooperates with the sliding frame, the sliding block, the rotating wheel, the spring 1, the connecting rod, the sliding groove and the sliding block, and utilizes the rotating wheel on the sliding block to contact the inner wall of the eccentric wheel to reduce the friction between the sliding block and the eccentric wheel, thereby improving the service life of the device; the fixed component cooperates with the groove, the push plate, the connecting block, the limiting rod and the spring 2, and utilizes the limiting rod and the connecting block to fix the sliding frame in the rotor body, so that the sliding frame can be quickly fixed and disassembled, which is convenient for replacing the sliding block at a later time, thereby improving the practicality of the device.

[0007] In a preferred embodiment of the technical solution of the present invention, the wear-resistant assembly further comprises connecting rods, and a plurality of the connecting rods are respectively fixedly connected to the four sliding frames.

[0008] Preferably, the wear-resistant component further comprises a slide groove and a slider, the four slide grooves are respectively opened in the four sliding frames, the four sliders are respectively slidably connected in the four slide grooves, and the four sliders are respectively fixedly connected to the four sliding blocks.

[0009] Preferably, the fixing assembly includes a groove and a push plate, four grooves are respectively opened in four sliding frames, and a plurality of push plates are respectively slidably connected in the four grooves.

[0010] In a preferred embodiment of the technical solution of the present invention, the fixing assembly further comprises a connecting block and a limiting rod, wherein a plurality of the connecting blocks are respectively fixedly connected to a plurality of push plates, and a plurality of the limiting rods are respectively fixedly connected to a plurality of the connecting blocks.

[0011] In a preferred embodiment of the technical solution of the present invention, the fixing assembly further includes a second spring, and both ends of a plurality of the second springs are respectively fixedly connected to a plurality of push plates.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The technical solution of the present invention is that the wear-resistant component cooperates with the sliding frame, the sliding block, the rotating wheel, the spring 1, the connecting rod, the sliding groove and the sliding block, and utilizes the rotating wheel on the sliding block to contact the inner wall of the eccentric wheel to reduce the friction between the sliding block and the eccentric wheel, thereby improving the service life of the device; the fixed component cooperates with the groove, the push plate, the connecting block, the limiting rod and the spring 2, and utilizes the limiting rod and the connecting block to fix the sliding frame in the rotor body, so that the sliding frame can be quickly fixed and disassembled, which is convenient for replacing the sliding block at a later time, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2This is a cross-sectional view of the internal structure of the eccentric wheel in the utility model;

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixing component in the utility model;

[0017] Figure 4 This is a cross-sectional view of the internal structure of the fixing assembly in the present utility model;

[0018] Among them: 1. Oil pump cover; 2. Eccentric wheel; 3. Oil pump shaft; 4. Rotor body; 5. Wear-resistant component; 51. Sliding frame; 52. Sliding block; 53. Rotating wheel; 54. Spring 1; 55. Connecting rod; 56. Slide groove; 57. Slider; 6. Fixed component; 61. Groove; 62. Push plate; 63. Connecting block; 64. Limit rod; 65. Spring 2. DETAILED DESCRIPTION

[0019] The following is a combination of the appended examples of the present invention Figure 1-4 , the technical solutions in the embodiments of the present utility model are described in detail. Example 1

[0020] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. 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.

[0021] The present invention provides a wear-resistant oil pump rotor through improvement. The technical solution of the present invention is:

[0022] like Figures 1-4As shown, a wear-resistant oil pump rotor includes an oil pump cover 1, an eccentric wheel 2 is clamped on the oil pump cover 1, an oil pump shaft 3 is rotatably connected to the oil pump cover 1, a rotor body 4 is fixedly connected to the oil pump shaft 3, and a wear-resistant component 5 is provided on the rotor body 4. The wear-resistant component 5 includes a sliding frame 51, a sliding block 52, a rotating wheel 53 and a spring 54. Four sliding frames 51 are slidably connected to the rotor body 4. The sliding frames 51 are distributed in a circular array with the center of the rotor body 4 as the center of the circle. The length of the sliding frame 51 is equal to the length of the rotor body 4. The four sliding blocks 52 are respectively It is slidably connected in four sliding frames 51, and multiple rotating wheels 53 are rotatably connected to the four sliding blocks 52 respectively. Two rotating wheels 53 are respectively provided on both sides of the top of a sliding block 52. The two ends of multiple springs 54 are respectively fixedly connected to the four sliding frames 51 and the four sliding blocks 52. The springs 54 are distributed in a linear array in the sliding frame 51. The rotating wheels 53 on the sliding block 52 are in contact with the inner wall of the eccentric wheel 2 to reduce the friction between the sliding block 52 and the eccentric wheel 2, thereby improving the service life of the device. A fixing component 6 is provided in the rotor body 4.

[0023] Further, such as Figure 2-Figure 4 As shown, the wear-resistant component 5 further includes connecting rods 55 , and the multiple connecting rods 55 are fixedly connected to the four sliding frames 51 respectively. Two adjacent connecting rods 55 are symmetrical with respect to the sliding frame 51 , and the length of the connecting rod 55 is equal to the length of the sliding frame 51 .

[0024] Further, such as Figure 3 and Figure 4 As shown, the wear-resistant component 5 also includes a slide groove 56 and a slider 57. The four slide grooves 56 are respectively opened in the four sliding frames 51. The length of the slide groove 56 is equal to the length of the sliding block 52. The four sliders 57 are respectively slidably connected in the four slide grooves 56. The four sliders 57 are respectively fixedly connected to the four sliding blocks 52. The slider 57 is located at the bottom of one side of the sliding block 52.

[0025] Further, such as Figure 3 and Figure 4 As shown, the fixing component 6 includes a groove 61 and a push plate 62. The four grooves 61 are respectively opened in the four sliding frames 51. The cross-section of the groove 61 is "U"-shaped. Multiple push plates 62 are respectively slidably connected in the four grooves 61. The two adjacent push plates 62 are symmetrical with the slider 57 as the axis.

[0026] Further, such as Figure 3 and Figure 4 As shown, the fixing assembly 6 also includes a connecting block 63 and a limiting rod 64. Multiple connecting blocks 63 are respectively fixedly connected to multiple push plates 62, and multiple limiting rods 64 are respectively fixedly connected to multiple connecting blocks 63. The cross-section of the limiting rod 64 is "L"-shaped, and the distance between the limiting rod 64 and the bottom of the slide groove 56 is equal to the thickness of the slider 57.

[0027] Further, such as Figure 3 and Figure 4 As shown, the fixing assembly 6 also includes a spring 2 65, and the two ends of multiple springs 2 65 are respectively fixedly connected to multiple push plates 62. The sliding frame 51 is fixed in the rotor body 4 by using a limit rod 64 and a connecting block 63, so that the sliding frame 51 can be quickly fixed and disassembled, which is convenient for the later replacement of the sliding block 52, thereby improving the practicality of the device.

[0028] The method for using a wear-resistant oil pump rotor of this embodiment is as follows:

[0029] The slider 57 is pressed to move in the slide groove 56, driving the sliding block 52 to move in the direction of the spring 1 54. When the slider 57 moves to the bottom of the slide groove 56, the two push plates 62 are pushed inward, driving the connecting block 63 and the limit rod 64 to move in the direction of the spring 2 65. The limit rod 64 is used to resist the slider 57. When the limit rod 64 is fully embedded in the sliding frame 51, the sliding frame 51 is pushed to be embedded in the rotor body 4. When the sliding frame 51 is fully embedded in the rotor body 4, the push plate 62 is released. Under the action of the spring 2 65, the push plate 62 moves outward, driving the limit rod 64 to move outward. The limit rod 64 moves away from the slider 57, and the connecting block 63 and the limit rod 64 is embedded in the rotor body 4 as it moves, fixing the sliding frame 51. At the same time, the slider 57 is no longer resisted. Under the action of spring 1 54, the sliding block 52, the rotating wheel 53 and the slider 57 move in the direction away from the spring 1 54. As it moves, the rotating wheel 53 meets the inner wall of the eccentric wheel 2. The rotating wheel 53 rolls in the eccentric wheel 2 to reduce the friction between the sliding block 52 and the eccentric wheel 2, thereby increasing the service life of the device. When the sliding block 52 needs to be replaced, repeat the above operation and use the limit rod 64 to resist the slider 57. The sliding frame 51 can be pulled out of the rotor body 4 and the sliding block 52 thereon can be replaced.

[0030] The technical means disclosed in the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A wear-resistant oil pump rotor, comprising an oil pump cover (1), an eccentric wheel (2) clamped on the oil pump cover (1), an oil pump shaft (3) rotatably connected to the oil pump cover (1), and a rotor body (4) fixedly connected to the oil pump shaft (3), characterized in that: The rotor body (4) is provided with a wear-resistant component (5), and the wear-resistant component (5) includes a sliding frame (51), a sliding block (52), a rotating wheel (53) and a spring (54). The four sliding frames (51) are slidably connected to the rotor body (4), the four sliding blocks (52) are respectively slidably connected to the four sliding frames (51), the plurality of rotating wheels (53) are respectively rotatably connected to the four sliding blocks (52), and the two ends of the plurality of springs (54) are respectively fixedly connected to the four sliding frames (51) and the four sliding blocks (52). A fixing component (6) is provided in the rotor body (4).

2. The wear-resistant oil pump rotor according to claim 1, characterized in that: The wear-resistant component (5) further includes connecting rods (55), and a plurality of the connecting rods (55) are respectively fixedly connected to the four sliding frames (51).

3. The wear-resistant oil pump rotor according to claim 1, characterized in that: The wear-resistant component (5) further includes a slide groove (56) and a slider (57), wherein the four slide grooves (56) are respectively opened in the four sliding frames (51), the four sliders (57) are respectively slidably connected in the four slide grooves (56), and the four sliders (57) are respectively fixedly connected to the four sliding blocks (52).

4. The wear-resistant oil pump rotor according to claim 1, characterized in that: The fixing assembly (6) comprises a groove (61) and a push plate (62), wherein the four grooves (61) are respectively opened in the four sliding frames (51), and the plurality of push plates (62) are respectively slidably connected in the four grooves (61).

5. The wear-resistant oil pump rotor according to claim 4, characterized in that: The fixing assembly (6) further comprises a connecting block (63) and a limiting rod (64), wherein the plurality of connecting blocks (63) are respectively fixedly connected to the plurality of push plates (62), and the plurality of limiting rods (64) are respectively fixedly connected to the plurality of connecting blocks (63).

6. The wear-resistant oil pump rotor according to claim 4, characterized in that: The fixing assembly (6) further includes a second spring (65), and both ends of a plurality of second springs (65) are respectively fixedly connected to a plurality of push plates (62).

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