Noise reduction type hydraulic pump

Abstract

The utility model discloses a noise reduction type hydraulic pump, and relates to the technical field of hydraulic pumps, the noise reduction type hydraulic pump comprises a damping base, a groove is arranged in the damping base, the inner wall of the groove is in sliding connection with a bottom plate, the top end of the bottom plate is fixedly connected with a hydraulic pump body, two sides of the inner wall of the groove are both provided with sliding grooves, and a damping and noise reduction assembly comprises two sliding plates. Two damping rods can drive two buffer springs to contract, so that the lengths of the two damping rods and the compression degree of the two buffer springs can be adjusted, and the damping and buffering strength of the hydraulic pump body can be adjusted by adjusting the lengths of the damping rods and the compression adjustment of the buffer springs; according to the technical scheme, the hydraulic pump body can be individually adjusted according to the specification, the weight and the operation state of the hydraulic pump body to meet different damping requirements, so that the hydraulic pump body can eliminate certain vibration noise, and noise reduction treatment can be conducted on the hydraulic pump body.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic pumps, in particular to a noise reduction type hydraulic pump. Background Art

[0002] The hydraulic pump is the power element of the hydraulic system. It is driven by an engine or an electric motor. It sucks oil from the hydraulic oil tank, forms pressurized oil and discharges it to the actuator. When the hydraulic pump body is working, the pump body will vibrate regularly. Due to the vibration, the pump body will produce a rigid collision with the base and make noise.

[0003] Although some existing shock-absorbing and noise-reducing devices cushion the vibrations generated by the operation of the hydraulic pump body by setting springs, the hydraulic pump body has various sizes, specifications and weights. When some hydraulic pump bodies are lighter or heavier, it is necessary to adjust the buffering compression force of the spring for adaptive installation. However, the traditional shock-absorbing and noise-reducing devices are not convenient for adjusting the buffering compression force of the spring, and thus cannot adapt to the shock absorption of hydraulic pumps of various specifications and weights, and thus cannot achieve a good noise reduction effect for the hydraulic pump body. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a noise-reducing hydraulic pump, which can solve the problem that the traditional shock-absorbing and noise-reducing device is not convenient for adjusting the buffer compression force of the spring, and thus cannot adapt to the shock reduction of hydraulic pumps of various specifications and weights, and thus cannot make the hydraulic pump body achieve a good noise reduction effect.

[0005] To achieve the above object, the utility model provides the following technical solution: a noise reduction hydraulic pump, comprising a shock absorbing base, a groove is provided inside the shock absorbing base, a bottom plate is slidably connected to the inner wall of the groove, and a hydraulic pump body is fixedly connected to the top of the bottom plate;

[0006] Slide grooves are provided on both sides of the inner wall of the groove;

[0007] The shock-absorbing and noise-reducing assembly includes two sliding plates, which are respectively slidably connected to the inner walls of the corresponding sliding grooves. The top ends of the two sliding plates are fixedly connected with buffer pads, and the bottom ends of the two sliding plates 6 are fixedly connected with damping cylinders 18. The interior of the damping cylinder 18 is slidably connected with a damping rod 17, and the outer surface of the damping rod 17 is provided with a buffer spring 7.

[0008] Preferably, the bottom surfaces of the inner walls of the two slide grooves are each provided with a first through groove, the inner walls of the two first through grooves are both slidably connected with a moving block, and the top ends of the two moving blocks are respectively fixedly connected to the bottom ends of the two damping rods.

[0009] Preferably, both ends of the two moving blocks are fixedly connected to the limiting blocks, limiting grooves are provided on both sides of the inner walls of the two first through grooves, and the inner walls of the four limiting grooves are respectively slidably connected to the outer surfaces of the corresponding limiting blocks.

[0010] Preferably, a second through slot is provided inside the shock-absorbing base, the interior of the second through slot is communicated with the interiors of the two first through slots respectively, and a threaded rod is rotatably connected inside the second through slot.

[0011] Preferably, a transverse plate is threadedly sleeved on the outer surface of the threaded rod, and two ends of the transverse plate respectively slide through the interior of the corresponding first through groove and are fixedly connected to the opposite ends of the two moving blocks.

[0012] Preferably, a motor is fixedly connected to the bottom end of the shock-absorbing base, and the output end of the motor rotates through the inside of the second through groove and is fixedly connected to the bottom end of the threaded rod.

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

[0014] (1) The noise reduction hydraulic pump drives two buffer springs to contract through two damping rods, so that the lengths of the two damping rods and the compression degrees of the two buffer springs can be adjusted. By adjusting the lengths of the damping rods and the compression of the buffer springs, the shock absorption and buffering force of the hydraulic pump body can be adjusted. Therefore, personalized adjustments can be made according to the specifications, weight and operating status of the hydraulic pump body to meet different shock absorption requirements, so that the hydraulic pump body can eliminate certain vibration noises, thereby enabling the hydraulic pump body to be subjected to noise reduction treatment.

[0015] (2) The noise reduction hydraulic pump can control the damping coefficient and stability of the hydraulic pump body by adjusting the damping rod and the buffer spring. Appropriate damping coefficient and stability help reduce the loss of the hydraulic pump body due to vibration and resonance during operation, thereby improving the operating efficiency and reliability of the hydraulic pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural diagram of a noise reduction hydraulic pump of the utility model;

[0018] Figure 2 It is a plan view of the chute of the utility model;

[0019] Figure 3 This is a schematic diagram of the sliding plate structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the moving block of the utility model.

[0021] Figure numerals: 1. shock-absorbing base; 2. groove; 3. bottom plate; 4. hydraulic pump body; 5. slide groove; 6. sliding plate; 7. buffer spring; 8. buffer pad; 9. first through groove; 10. moving block; 11. limiting groove; 12. limiting block; 13. second through groove; 14. motor; 15. threaded rod; 16. cross plate; 17. damping rod; 18. damping cylinder. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] See also Figure 1-4 The utility model provides a technical solution: a noise reduction type hydraulic pump, comprising a shock absorbing base 1, a groove 2 is provided inside the shock absorbing base 1, a bottom plate 3 is slidably connected to the inner wall of the groove 2, and a hydraulic pump body 4 is fixedly connected to the top of the bottom plate 3;

[0027] Slide grooves 5 are provided on both sides of the inner wall of the groove 2;

[0028] The shock-absorbing and noise-reducing assembly includes two sliding plates 6, which are respectively slidably connected to the inner walls of the corresponding slide grooves 5, the top ends of the two sliding plates 6 are fixedly connected with buffer pads 8, the bottom ends of the two sliding plates 6 are fixedly connected with damping cylinders 18, the interior of the damping cylinder 18 is slidably connected with a damping rod 17, and the outer surface of the damping rod 17 is provided with a buffer spring 7.

[0029] Furthermore, a first through groove 9 is provided on the bottom surface of the inner wall of the two slide grooves 5, and a moving block 10 is slidably connected to the inner wall of the two first through grooves 9. The top ends of the two moving blocks 10 are respectively fixedly connected to the bottom ends of the two damping rods 17, and both ends of the two moving blocks 10 are fixedly connected to the limiting blocks 12. Limiting grooves 11 are provided on both sides of the inner wall of the two first through grooves 9, and the inner walls of the four limiting grooves 11 are respectively slidably connected to the outer surfaces of the corresponding limiting blocks 12.

[0030] Furthermore, a second through groove 13 is opened inside the shock-absorbing base 1, and the interior of the second through groove 13 is connected to the interior of the two first through grooves 9 respectively. A threaded rod 15 is rotatably connected inside the second through groove 13, and a cross plate 16 is threadedly sleeved on the outer surface of the threaded rod 15. The two ends of the cross plate 16 respectively slide through the interior of the corresponding first through grooves 9 and are fixedly connected to the opposite ends of the two moving blocks 10.

[0031] Furthermore, a motor 14 is fixedly connected to the bottom end of the shock-absorbing base 1 , and an output end of the motor 14 rotates and passes through the inside of the second through slot 13 and is fixedly connected to the bottom end of the threaded rod 15 .

[0032] Furthermore, the staff starts the motor 14, and then the motor 14 drives the threaded rod 15 to rotate to move the cross plate 16 upward, and then the cross plate 16 drives the two moving blocks 10 to move upward at the same time, and then the two moving blocks 10 squeeze the two damping rods 17 upward at the same time, and then the two damping rods 17 will respectively enter the corresponding damping cylinders 18, and then the two damping rods 17 will drive the two buffer springs 7 to contract, so that the lengths of the two damping rods 17 and the compression degrees of the two buffer springs 7 can be adjusted, so that by adjusting the length of the damping rods 17 and the compression of the buffer springs, the shock-absorbing and buffering force of the hydraulic pump body 4 can be adjusted, so that it can be personalized according to the specifications, weight and operating conditions of the hydraulic pump body 4 to meet different shock-absorbing requirements, so that the hydraulic pump body 4 can eliminate certain vibration noises, so that the hydraulic pump body 4 can be subjected to noise reduction treatment.

[0033] Furthermore, by providing the limit groove 11 and the limit block 12, the stability of the movable block 10 when moving upward can be improved, so that the movable block 10 can stably drive the damping rod 17 and the buffer spring 7 to adjust, thereby making the noise reduction type hydraulic pump more practical.

[0034] Furthermore, the damping coefficient and stability of the hydraulic pump body 4 can be controlled by adjusting the damping rod 17 and the buffer spring 7. Appropriate damping coefficient and stability help reduce the loss caused by vibration and resonance during operation of the hydraulic pump body 4, and improve the operating efficiency and reliability of the hydraulic pump body 4.

[0035] Furthermore, by providing the buffer pad 8 , when the sliding plate 6 collides with the buffer pad 8 , the sliding plate 6 can be effectively buffered and noise reduced.

[0036] Working principle: the staff starts the motor 14, and then the motor 14 drives the threaded rod 15 to rotate to move the cross plate 16 upward, and then the cross plate 16 drives the two moving blocks 10 to move upward at the same time, and then the two moving blocks 10 squeeze the two damping rods 17 upward at the same time, and then the two damping rods 17 will respectively enter the corresponding damping cylinders 18, and then the two damping rods 17 will drive the two buffer springs 7 to contract, so that the lengths of the two damping rods 17 and the compression degrees of the two buffer springs 7 can be adjusted, so that by adjusting the length of the damping rods 17 and the compression of the buffer springs, the shock-absorbing and buffering force of the hydraulic pump body 4 can be adjusted, so that it can be personalized according to the specifications, weight and operating conditions of the hydraulic pump body 4 to meet different shock-absorbing requirements, so that the hydraulic pump body 4 can eliminate certain vibration noises, so that the hydraulic pump body 4 can be subjected to noise reduction treatment.

[0037] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A noise reduction hydraulic pump, characterized in that: The shock absorbing base (1) comprises a groove (2) formed inside the shock absorbing base (1), a bottom plate (3) being slidably connected to the inner wall of the groove (2), and a hydraulic pump body (4) being fixedly connected to the top of the bottom plate (3); Slide grooves (5) are provided on both sides of the inner wall of the groove (2); The vibration reduction and noise reduction component comprises two sliding plates (6), the two sliding plates (6) are respectively slidably connected to the inner walls of the corresponding sliding grooves (5), the top ends of the two sliding plates (6) are fixedly connected to buffer pads (8), the bottom ends of the two sliding plates (6) are fixedly connected to damping cylinders (18), the interior of the damping cylinder (18) is slidably connected to a damping rod (17), and the outer surface of the damping rod (17) is provided with a buffer spring (7).

2. A noise reduction hydraulic pump according to claim 1, characterized in that: The bottom surfaces of the inner walls of the two slide grooves (5) are each provided with a first through groove (9); The inner walls of the two first through grooves (9) are both slidably connected with moving blocks (10), and the top ends of the two moving blocks (10) are fixedly connected to the bottom ends of the two damping rods (17) respectively.

3. A noise reduction hydraulic pump according to claim 2, characterized in that: Both ends of the two moving blocks (10) are fixedly connected to limit blocks (12); Wherein, both sides of the inner walls of the two first through grooves (9) are provided with limiting grooves (11), and the inner walls of the four limiting grooves (11) are respectively slidably connected to the outer surfaces of the corresponding limiting blocks (12).

4. A noise reduction hydraulic pump according to claim 2, characterized in that: A second through groove (13) is provided inside the shock-absorbing base (1); The interior of the second through groove (13) is respectively connected to the interiors of the two first through grooves (9), and the interior of the second through groove (13) is rotatably connected to a threaded rod (15).

5. A noise reduction hydraulic pump according to claim 4, characterized in that: The outer surface of the threaded rod (15) is threadedly sleeved with a transverse plate (16); The two ends of the horizontal plate (16) respectively slide through the interior of the corresponding first through slot (9) and are fixedly connected to the opposite ends of the two moving blocks (10).

6. A noise reduction hydraulic pump according to claim 4, characterized in that: A motor (14) is fixedly connected to the bottom end of the shock-absorbing base (1); The output end of the motor (14) rotates and passes through the interior of the second through slot (13) and is fixedly connected to the bottom end of the threaded rod (15).

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