High-pressure oil pump with noise reduction function

Abstract

The utility model belongs to the field of high-pressure oil pumps, and particularly relates to a high-pressure oil pump with a noise reduction function, which comprises a base frame and a base, a high-pressure oil pump main body is fixedly mounted on the surface of the base, the base is matched with the base frame for use, a support is fixedly mounted in the base frame, a shock pad is fixedly mounted on the surface of the support, and the shock pad is fixedly mounted on the surface of the support. The surface of the shock pad abuts against the bottom of the base, a threaded sleeve is rotationally installed in the base frame, a stud is fixedly connected to the bottom of the base, and the stud and the threaded sleeve are used in a matched mode. By arranging the support and the shock pad, noise caused by vibration generated by the high-pressure oil pump body and the base can be effectively reduced, the threaded sleeve is supported through the fastening mechanism so that the stud can be stabilized in the threaded sleeve, the base can be effectively prevented from loosening and the like, structural collision caused by loosening of the base is avoided, and the service life of the high-pressure oil pump is prolonged. And noise generated by vibration is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure oil pumps, specifically a high-pressure oil pump with noise reduction function. Background Technology

[0002] High-pressure oil pumps are the core components of fuel injection systems and hydraulic devices. They pressurize low-pressure fuel into high-pressure fuel through the movement of plungers or pistons, and precisely control the injection pressure, time, and flow rate to ensure that the fuel is fully atomized to optimize combustion efficiency. At the same time, as the power source for hydraulic equipment such as jacks and upsetting heads, they are widely used in the automotive, construction machinery, shipbuilding, and aerospace industries, playing a key role in improving engine power, reducing emissions, and ensuring the stable operation of hydraulic systems.

[0003] Currently, in existing high-pressure oil pumps, the base is often fixed with bolts, which can easily lead to loosening of the base over time. This loosening not only amplifies mechanical vibration and increases noise but also affects the service life of the high-pressure oil pump. Therefore, a high-pressure oil pump with noise reduction function is proposed to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, high-pressure oil pumps are prone to issues such as loosening of the base after prolonged use, which amplifies mechanical vibration and exacerbates noise. This invention proposes a high-pressure oil pump with noise reduction function.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-pressure oil pump with noise reduction function, including a base frame and a base. The high-pressure oil pump body is fixedly installed on the surface of the base. The base and the base frame are used together. A bracket is fixedly installed inside the base frame. A shock-absorbing pad is fixedly installed on the surface of the bracket. The surface of the shock-absorbing pad abuts against the bottom of the base. A threaded sleeve is rotatably installed inside the base frame. A stud is fixedly connected to the bottom of the base. The stud and the threaded sleeve are used together. A fastening mechanism is provided inside the base frame.

[0006] The fastening mechanism includes a movable frame slidably connected inside the base frame. Several teeth are fixedly installed on the surface of the movable frame. A gear is fixedly sleeved on the surface of the threaded sleeve. The surface of the gear meshes with the several teeth. A spring is provided inside the base frame. One end of the spring is fixedly connected to the inner wall of the base frame, and the other end of the spring is fixedly connected to the inner wall of the movable frame.

[0007] Preferably, a positioning sleeve is fixedly installed inside the base frame, and a first positioning block is fixedly installed on the surface of the threaded sleeve, with the surface of the first positioning block slidably connected to the inner cavity of the positioning sleeve.

[0008] Preferably, a positioning frame is fixedly installed inside the base frame, and a second positioning block is fixedly installed on the surface of the threaded sleeve, with the surface of the second positioning block slidably connected to the inner cavity of the positioning frame.

[0009] Preferably, a positioning rod is fixedly connected inside the base frame, one end of the positioning rod passes through the spring and the movable frame, and the surface of the positioning rod is slidably connected to the inner cavity of the spring and the movable frame.

[0010] Preferably, a support block is fixedly installed at one end of the positioning rod, and the support block is used in conjunction with the movable frame.

[0011] Preferably, a slider is fixedly installed at the bottom of the movable frame, and a slide rail is fixedly installed inside the base frame, with the surface of the slider slidably connected to the inner cavity of the slide rail.

[0012] Preferably, a limiting block is fixedly installed on the surface of the slider, and a limiting groove is formed in the inner wall of the slide rail, with the inner cavity of the limiting groove slidably connected to the surface of the limiting block.

[0013] Preferably, a limiting frame is inserted into one side of the base frame, the surface of the limiting frame is slidably connected to the inner cavity of the base frame, the limiting frame is used in conjunction with the movable frame, and a retaining plate is rotatably mounted on the base frame, the retaining plate is used in conjunction with the limiting frame.

[0014] The advantages of this utility model are:

[0015] 1. By setting up a bracket and a shock-absorbing pad, this utility model can effectively reduce the noise caused by the vibration generated by the high-pressure oil pump body and base. Moreover, by using a fastening mechanism to support the threaded sleeve, the stud is stabilized inside the threaded sleeve, which can effectively prevent the base from becoming loose and avoid structural collisions caused by the base becoming loose, thereby reducing the noise generated by vibration.

[0016] 2. This utility model, by setting a fastening mechanism, causes the stud to mate with the threaded sleeve when the base is inserted into the base frame, and the moving frame moves under the support of the spring. The moving frame causes the gear to rotate through the teeth, and the gear drives the threaded sleeve to rotate, thereby fastening the stud inside the threaded sleeve, thus effectively stabilizing the position of the base and avoiding the base from loosening and causing an increase in noise intensity. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the high-pressure oil pump with noise reduction function according to this utility model.

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the fastening mechanism structure of this utility model;

[0021] Figure 4 This utility model Figure 3 A magnified structural diagram of part A;

[0022] Figure 5 This is a schematic diagram of the mobile frame structure of this utility model;

[0023] Figure 6 This utility model Figure 5 A schematic diagram of the left-side view structure.

[0024] In the diagram: 1. Base frame; 101. Bracket; 102. Shock-absorbing pad; 2. Base; 3. High-pressure oil pump body; 4. Stud; 5. Threaded sleeve; 51. Positioning sleeve; 52. First positioning block; 53. Positioning frame; 54. Second positioning block; 6. Fastening mechanism; 61. Moving frame; 6101. Limiting frame; 6102. Clamping plate; 62. Spring; 63. Tooth; 64. Gear; 65. Positioning rod; 66. Support block; 67. Slider; 6701. Limiting block; 6702. Limiting groove; 68. Slide rail. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0027] This application discloses a high-pressure oil pump with noise reduction function. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 5 A high-pressure oil pump with noise reduction function includes a base frame 1 and a base 2. The high-pressure oil pump body 3 is fixedly installed on the surface of the base 2. The base 2 works in conjunction with the base frame 1. A bracket 101 is fixedly installed inside the base frame 1. A shock-absorbing pad 102 is fixedly installed on the surface of the bracket 101. The surface of the shock-absorbing pad 102 abuts against the bottom of the base 2. A threaded sleeve 5 is rotatably installed inside the base frame 1. A stud 4 is fixedly connected to the bottom of the base 2. The stud 4 works in conjunction with the threaded sleeve 5. A fastening mechanism 6 is provided inside the base frame 1. The high-pressure oil pump body 3 is a high-pressure vane oil pump. It achieves oil suction and oil pressure through the synergistic action of the rotor, stator and vanes. When the rotor rotates, the vanes are pressed against the inner surface of the stator under the action of centrifugal force and pressure oil to form a sealed working chamber. As the rotor rotates, the volume of the working chamber changes periodically to complete the oil suction and oil pressure process. The double-acting vane pump completes two suction and discharge cycles per revolution, which is highly efficient.

[0028] The fastening mechanism 6 includes a movable frame 61 that is slidably connected inside the base frame 1. Several teeth 63 are fixedly installed on the surface of the movable frame 61. A gear 64 is fixedly sleeved on the surface of the threaded sleeve 5. The surface of the gear 64 meshes with several teeth 63. A spring 62 is provided inside the base frame 1. One end of the spring 62 is fixedly connected to the inner wall of the base frame 1, and the other end of the spring 62 is fixedly connected to the inner wall of the movable frame 61.

[0029] By inserting the base 2 into the base frame 1 and pulling the movable frame 61 to move it to one side of the base frame 1, the stud 4 is then aligned with the threaded sleeve 5. After the base 2 is inserted into the base frame 1, the movable frame 61 is released. Supported by the spring 62, the movable frame 61 moves to the other side of the base frame 1. The movement of the movable frame 61 causes the teeth 63 to drive the gear 64 to rotate, which in turn drives the threaded sleeve 5 to rotate. The rotation of the threaded sleeve 5 causes the stud 4 to enter the interior of the threaded sleeve 5, which in turn causes the base 2 to move into the interior of the base frame 1. This allows the base 2 to press tightly against the shock-absorbing pad 102. Furthermore, supported by the spring 62, the movable frame 61 continuously supports the position of the threaded sleeve 5 through the teeth 63 and the gear 64, effectively preventing the base 2 from becoming loose. This avoids collisions between structures caused by the loosening of the base 2, thereby reducing the noise generated by the vibration of the high-pressure oil pump body 3 and facilitating the disassembly of the base 2.

[0030] Reference Figure 3 and Figure 4A positioning sleeve 51 is fixedly installed inside the base frame 1, and a first positioning block 52 is fixedly installed on the surface of the threaded sleeve 5. The surface of the first positioning block 52 is slidably connected to the inner cavity of the positioning sleeve 51. The positioning sleeve 51 and the first positioning block 52 are set so that the first positioning block 52 and the positioning sleeve 51 can effectively stabilize the position of the lower end of the threaded sleeve 5, so as to avoid displacement of the threaded sleeve 5 and ensure the normal use of the threaded sleeve 5.

[0031] Reference Figure 3 and Figure 4 A positioning frame 53 is fixedly installed inside the base frame 1, and a second positioning block 54 is fixedly installed on the surface of the threaded sleeve 5. The surface of the second positioning block 54 is slidably connected to the inner cavity of the positioning frame 53. The positioning block and the second positioning block 54 can effectively stabilize the position of the upper end of the threaded sleeve 5, so as to avoid the upper end of the threaded sleeve 5 from shifting and affecting the docking with the stud 4.

[0032] Reference Figure 3 and Figure 5 A positioning rod 65 is fixedly connected inside the base frame 1. One end of the positioning rod 65 passes through the spring 62 and the movable frame 61, and the surface of the positioning rod 65 is slidably connected to the inner cavity of the spring 62 and the movable frame 61. A support block 66 is fixedly installed at one end of the positioning rod 65, and the support block 66 works in conjunction with the movable frame 61. The positioning rod 65 can effectively stabilize the position of the spring 62 and prevent the spring 62 from shifting, twisting, or deforming, which would affect its support for the movable frame 61, so that the movable frame 61 always maintains the position of supporting the threaded sleeve 5. The support block 66 can prevent the movable frame 61 from separating from the positioning rod 65.

[0033] Reference Figure 3 and Figure 5 A slider 67 is fixedly installed at the bottom of the movable frame 61, and a slide rail 68 is fixedly installed inside the base frame 1. The surface of the slider 67 is slidably connected to the inner cavity of the slide rail 68. A limit block 6701 is fixedly installed on the surface of the slider 67, and a limit groove 6702 is opened in the inner wall of the slide rail 68. The inner cavity of the limit groove 6702 is slidably connected to the surface of the limit block 6701. By sliding the surface of the slider 67 to the inner cavity of the slide rail 68 and by sliding the surface of the limit block 6701 to the inner cavity of the limit groove 6702, the slider 67 is prevented from separating from the slide rail 68. This effectively stabilizes the position of the movable frame 61 and prevents the movable frame 61 from shifting or displacing, which could cause the teeth 63 and gear 64 to separate, thus ensuring the support effect of the movable frame 61.

[0034] Reference Figure 6A limiting frame 6101 is inserted into one side of the base frame 1. The surface of the limiting frame 6101 is slidably connected to the inner cavity of the base frame 1. The limiting frame 6101 works in conjunction with the movable frame 61. A retaining plate 6102 is rotatably mounted on the surface of the base frame 1. The retaining plate 6102 works in conjunction with the limiting frame 6101. By making one end of the limiting frame 6101 abut against the movable frame 61 and fixing the position of the limiting frame 6101 by the retaining plate 6102, the position of the movable frame 61 is stabilized by the limiting frame 6101, so as to avoid the movable frame 61 resetting and the threaded sleeve 5 rotating due to the spring 62 shaking.

[0035] Working principle: When installing the high-pressure oil pump body 3, the base 2 is inserted into the base frame 1, and the movable frame 61 is pulled to move the movable frame 61 to one side of the base frame 1. Then, the stud 4 is connected to the threaded sleeve 5. After the base 2 is inserted into the base frame 1, the movable frame 61 is released. The position of the spring 62 is stabilized by the positioning rod 65 to prevent the spring 62 from twisting, deforming, or displacing. The movable frame 61 is moved to the other side of the base frame 1 by the support of the spring 62. The position of the slider 67 is stabilized by the limiting block 6701 and the limiting groove 6702, so that the slider 67 slides inside the slide rail 68, thereby stabilizing the position of the movable frame 61. The support block 66 prevents the movable frame 61 from separating from the positioning rod 65. The movement of the movable frame 61 causes the teeth 63 to drive the gear 64 to rotate. The gear 64 drives the threaded sleeve 5 to rotate. The position of the lower end of the threaded sleeve 5 is stabilized by the positioning sleeve 51 and the first positioning block 52. The positioning bracket 53 and the second positioning block 54 stabilize the position of the upper end of the threaded sleeve 5, thereby preventing displacement or tilting of the threaded sleeve 5. The rotation of the threaded sleeve 5 causes the stud 4 to enter the interior of the threaded sleeve 5. The entry of the stud 4 into the interior of the threaded sleeve 5 causes the base 2 to move into the interior of the base frame 1. With the support of the bracket 101, the base 2 is tightly pressed against the shock-absorbing pad 102. Moreover, with the support of the spring 62, the moving frame 61 continuously supports the position of the threaded sleeve 5 through the teeth 63 and gears 64. The limiting bracket 6101 supports the moving frame 61, preventing the spring 62 from contracting during shaking, which would cause the moving frame 61 to reset and the threaded sleeve 5 to rotate. This effectively prevents the base 2 from becoming loose, thus avoiding collisions between structures caused by the loosening of the base 2. This reduces the noise generated by the vibration of the high-pressure oil pump body 3 and facilitates the disassembly of the base 2.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-pressure oil pump with noise reduction function, characterized in that: The system includes a base frame (1) and a base (2). A high-pressure oil pump body (3) is fixedly installed on the surface of the base (2). The base (2) is used in conjunction with the base frame (1). A bracket (101) is fixedly installed inside the base frame (1). A shock-absorbing pad (102) is fixedly installed on the surface of the bracket (101). The surface of the shock-absorbing pad (102) abuts against the bottom of the base (2). A threaded sleeve (5) is rotatably installed inside the base frame (1). A stud (4) is fixedly connected to the bottom of the base (2). The stud (4) is used in conjunction with the threaded sleeve (5). A fastening mechanism (6) is provided inside the base frame (1). The fastening mechanism (6) includes a movable frame (61) slidably connected inside the base frame (1). Several teeth (63) are fixedly installed on the surface of the movable frame (61). A gear (64) is fixedly sleeved on the surface of the threaded sleeve (5). The surface of the gear (64) meshes with several teeth (63). A spring (62) is provided inside the base frame (1). One end of the spring (62) is fixedly connected to the inner wall of the base frame (1), and the other end of the spring (62) is fixedly connected to the inner wall of the movable frame (61).

2. The high-pressure oil pump with noise reduction function according to claim 1, characterized in that: A positioning sleeve (51) is fixedly installed inside the base frame (1), and a first positioning block (52) is fixedly installed on the surface of the threaded sleeve (5). The surface of the first positioning block (52) is slidably connected to the inner cavity of the positioning sleeve (51).

3. A high-pressure oil pump with noise reduction function according to claim 1, characterized in that: A positioning frame (53) is fixedly installed inside the base frame (1), and a second positioning block (54) is fixedly installed on the surface of the threaded sleeve (5). The surface of the second positioning block (54) is slidably connected to the inner cavity of the positioning frame (53).

4. A high-pressure oil pump with noise reduction function according to claim 1, characterized in that: A positioning rod (65) is fixedly connected inside the base frame (1). One end of the positioning rod (65) passes through the spring (62) and the movable frame (61). The surface of the positioning rod (65) is slidably connected to the inner cavity of the spring (62) and the movable frame (61).

5. A high-pressure oil pump with noise reduction function according to claim 4, characterized in that: One end of the positioning rod (65) is fixedly installed with a support block (66), which is used in conjunction with the movable frame (61).

6. A high-pressure oil pump with noise reduction function according to claim 1, characterized in that: A slider (67) is fixedly installed at the bottom of the movable frame (61), and a slide rail (68) is fixedly installed inside the base frame (1). The surface of the slider (67) is slidably connected to the inner cavity of the slide rail (68).

7. A high-pressure oil pump with noise reduction function according to claim 6, characterized in that: A limiting block (6701) is fixedly installed on the surface of the slider (67), and a limiting groove (6702) is formed on the inner wall of the slide rail (68). The inner cavity of the limiting groove (6702) is slidably connected to the surface of the limiting block (6701).

8. A high-pressure oil pump with noise reduction function according to claim 1, characterized in that: A limiting frame (6101) is inserted into one side of the base frame (1). The surface of the limiting frame (6101) is slidably connected to the inner cavity of the base frame (1). The limiting frame (6101) is used in conjunction with the movable frame (61). A clamping plate (6102) is rotatably installed on the surface of the base frame (1). The clamping plate (6102) is used in conjunction with the limiting frame (6101).

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