Mute high-pressure gear pump

Abstract

The utility model discloses a mute high-pressure gear pump, which relates to the field of gear pumps and comprises a pump body, a base is arranged at the bottom of the pump body and comprises an upper plate and a lower plate, slide holes are symmetrically formed in the top of the upper plate, mounting holes are formed in positions, corresponding to the slide holes, of the bottom of the pump body, and rubber blocks are symmetrically arranged at the top of the lower plate. The top and the bottom of the rubber block are both fixedly connected with round pieces, the round piece at the bottom of the rubber block is fixedly connected with the lower plate, and the round piece at the top of the rubber block is fixedly connected with an inserting column. Rigid connection between the pump body and the base is effectively reduced, vibration transmission is reduced, so that the mute performance of the gear pump is remarkably improved, meanwhile, the damping effect is further enhanced through introduction of the rubber blocks, vibration energy can be absorbed and dissipated through good elasticity of the rubber blocks, and the noise level is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of gear pumps, and in particular to a silent high-pressure gear pump. Background Technology

[0002] High-pressure gear pumps are machines suitable for conveying media. In applications with strict noise control requirements, such as laboratories, medical equipment, and precision manufacturing, traditional high-pressure gear pumps struggle to meet application needs due to vibration and noise issues. Existing high-pressure gear pumps often experience significant vibration and noise during operation, primarily due to the rigid connection between the pump body and the base, and the lack of effective vibration damping measures. Vibration not only affects the stability and service life of the equipment but can also disrupt the surrounding environment.

[0003] Due to a lack of adequate vibration damping and compliant design, existing high-pressure gear pumps are prone to loosening or damage when subjected to external excitation. This not only affects the normal operation of the equipment but may also increase maintenance and replacement costs. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a silent high-pressure gear pump, which solves the following technical problems: how to effectively reduce vibration and noise, and how to improve the convenience of installation and adjustment.

[0005] To address the problems in the existing technology, the technical solution of this utility model is as follows:

[0006] A silent high-pressure gear pump includes a pump body with a base at the bottom. The base includes an upper plate and a lower plate. The top of the upper plate has symmetrical sliding holes. The bottom of the pump body has mounting holes corresponding to the sliding holes. Rubber blocks are symmetrically arranged on the top of the lower plate. Circular plates are fixedly connected to the top and bottom of the rubber blocks. The circular plate at the bottom of the rubber blocks is fixedly connected to the lower plate. A pin is fixedly connected to the circular plate at the top of the rubber blocks. The top of the pin passes through the corresponding sliding hole and mounting hole in sequence. The pin is slidably connected to the corresponding sliding hole. A locking cap is threaded to the outside of the pin and is located at the top of the mounting hole.

[0007] Preferably, connecting rods are fixedly connected at equal intervals on both sides of the top of the lower plate. The top of the connecting rod is slidably inserted into the inside of the upper plate. A spring is sleeved on the outside of the connecting rod. The upper plate is elastically connected to the lower plate through the spring, which further enhances the pump's shock absorption performance.

[0008] Preferably, the locking cap has equidistant strip grooves on its outer side. The strip grooves make it easier to adjust the tightness of the locking cap by rotating it, and also prevent fingers from slipping during rotation.

[0009] Preferably, each of the four corners of the lower plate is fixedly connected with a lug, and each lug has a small hole on its surface to facilitate fixing the base to the mounting surface with bolts or other fasteners.

[0010] Preferably, a limiting block is provided at the top of the connecting rod to prevent the connecting rod from sliding out of the upper plate and to ensure a stable connection between the upper plate and the lower plate.

[0011] Preferably, the top of the insertion post is chamfered to facilitate the insertion post passing smoothly through the mounting hole, reduce resistance during installation, and improve work efficiency.

[0012] Preferably, a drive shaft is rotatably connected inside the pump body, and one end of the drive shaft is provided with a keyway, which allows the drive shaft to be connected to the output shaft of a motor or other power source through a key to realize the transmission of power.

[0013] Preferably, a buffer pad is provided between the pump body and the base to further absorb the vibration and impact during pump operation, thereby improving the overall quietness and stability.

[0014] Compared with the prior art, the advantages of this utility model are as follows:

[0015] 1. This utility model, through the sliding hole, allows the pump body to have a certain fine-tuning space relative to the base, and has a certain range of motion during vibration, effectively reducing the rigid connection between the pump body and the base, reducing vibration transmission, and thus significantly improving the quiet performance of the gear pump. At the same time, the introduction of the rubber block further enhances the shock absorption effect, and its good elasticity can absorb and dissipate vibration energy, further reducing the noise level.

[0016] 2. This utility model not only uses rubber blocks to reduce vibration and noise, but also adapts to changes in the pump body during vibration and shaking through its elastic deformation. This adaptability helps maintain a stable connection between the pump body and the base, preventing loosening or damage caused by excessive vibration. In addition, the combination design of the connecting rod and spring also enhances the stability of the structure, enabling the entire pump body to work more stably when subjected to external excitation, thus extending its service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the pump body structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the upper plate structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the lower plate structure of this utility model.

[0021] Reference numerals: 1. Pump body; 2. Base; 21. Upper plate; 211. Sliding hole; 22. Lower plate; 23. Rubber block; 24. Circular piece; 25. Insert post; 3. Locking cap; 31. Strip groove; 4. Connecting rod; 5. Spring; 6. Ear piece; 7. Small hole; 8. Limiting block; 9. Drive shaft; 10. Keyway; 11. Mounting hole; 12. Buffer pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] The silent high-pressure gear pump has a pump body 1;

[0024] like Figures 1 to 4 As shown, the pump body 1 has a base 2 at its bottom. The base 2 includes an upper plate 21 and a lower plate 22. The top of the upper plate 21 is symmetrically provided with sliding holes 211. The bottom of the pump body 1 is provided with mounting holes 11 corresponding to the sliding holes 211. The top of the lower plate 22 is symmetrically provided with rubber blocks 23. The top and bottom of the rubber blocks 23 are fixedly connected with circular pieces 24. The circular pieces 24 at the bottom of the rubber blocks 23 are fixedly connected to the lower plate 22. The circular pieces 24 at the top of the rubber blocks 23 are fixedly connected with inserts 25. The top of the inserts 25 passes through the corresponding sliding holes 211 and mounting holes 11 in sequence. The inserts 25 are slidably connected to the corresponding sliding holes 211. The outside of the inserts 25 is threaded with a locking cap 3. The locking cap 3 is located at the top of the mounting holes 11.

[0025] During installation, align the mounting hole 11 at the bottom of the pump body 1 with the insert post 25, insert the insert post 25 into the mounting hole 11, and then tighten the locking cap 3. The sliding hole 211 not only provides the necessary fine-tuning space for the pump body 1 relative to the base 2, allowing the position of the pump body 1 to be finely adjusted according to the actual situation during installation to achieve the best installation state, but also provides a certain amount of movement space for the pump body 1 when vibrating, which helps to reduce the vibration transmission caused by the pump body 1 being directly rigidly connected to the base 2, thereby reducing the noise level.

[0026] When the pump body 1 vibrates during operation, the rubber block 23 can effectively absorb and dissipate this vibration energy. As a result, the vibration transmitted to the base 2 and the surrounding environment is greatly reduced, thereby significantly improving the pump's quietness performance. The elastic deformation capacity of the rubber block 23 can adapt to the changes in the pump body 1 when it vibrates and shakes. When the pump body 1 is subjected to external excitation and undergoes a small displacement, the rubber block 23 can undergo corresponding elastic deformation to adapt to this displacement change. This adaptability helps to maintain a stable connection between the pump body 1 and the base 2, preventing loosening or damage caused by excessive vibration, and can further reduce vibration transmission and noise generation.

[0027] like Figures 1 to 4 As shown, connecting rods 4 are fixedly connected at equal intervals on both sides of the top of the lower plate 22. The top of the connecting rods 4 is slidably inserted into the inside of the upper plate 21. A spring 5 is sleeved on the outside of the connecting rods 4. The upper plate 21 is elastically connected to the lower plate 22 through the spring 5, which further enhances the shock absorption performance of the pump and reduces the vibration and noise generated by the pump body 1 during operation.

[0028] like Figures 1 to 4 As shown, the locking cap 3 has equidistant strip grooves 31 on its outer side, which provide sufficient gripping surface, making operation more convenient.

[0029] like Figures 1 to 4 As shown, each of the four corners of the lower plate 22 is fixedly connected with a lug 6. Each lug 6 has a small hole 7 on its surface, which allows the base 2 to be fixed to the mounting surface by bolts or other fasteners. The small hole 7 provides the position of the mounting point, ensuring the stability and reliability of the pump body 1.

[0030] like Figures 1 to 4 As shown, a limiting block 8 is provided at the top of the connecting rod 4. The limiting block 8 prevents the connecting rod 4 from sliding excessively out of the upper plate 21, ensuring a stable connection and appropriate elastic spacing between the upper plate 21 and the lower plate 22.

[0031] like Figures 1 to 4 As shown, the top of the insertion post 25 is chamfered, which makes it easier for the insertion post 25 to pass through the sliding hole 211 and the mounting hole 11, reducing friction and resistance during the insertion process.

[0032] like Figures 1 to 4 As shown, a drive shaft 9 is rotatably connected inside the pump body 1. One end of the drive shaft 9 is provided with a keyway 10, which facilitates the connection of the drive shaft 9 with the output shaft of a motor or other power source through a key to realize the transmission of power.

[0033] like Figures 1 to 4 As shown, a buffer pad 12 is provided between the pump body 1 and the base 2, which further enhances the pump's shock absorption performance and reduces the impact of the vibration generated by the pump body 1 during operation on the base 2 and the mounting surface.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A silent high-pressure gear pump comprising a pump body (1), the bottom of the pump body (1) is provided with a base (2), characterized in that, The base (2) comprises an upper plate (21) and a lower plate (22), the top of the upper plate (21) is symmetrically provided with sliding holes (211), the bottom of the pump body (1) is provided with mounting holes (11) corresponding to the sliding holes (211), the top of the lower plate (22) is symmetrically provided with rubber blocks (23), the top and bottom of the rubber block (23) are fixedly connected with circular plates (24), the circular plate (24) at the bottom of the rubber block (23) is fixedly connected with the lower plate (22), the circular plate (24) at the top of the rubber block (23) is fixedly connected with an inserting column (25), the top end of the inserting column (25) passes through the corresponding sliding hole (211) and mounting hole (11) in sequence, the inserting column (25) is slidably connected with the corresponding sliding hole (211), and the outer side of the inserting column (25) is threadedly connected with a locking cap (3), the locking cap (3) is arranged at the top of the mounting hole (11).

2. The silent high pressure gear pump of claim 1, wherein, The top of the lower plate (22) is fixedly connected with connecting rods (4) at both sides at equal intervals, the top end of the connecting rod (4) is slidably inserted into the upper plate (21), and the outer side of the connecting rod (4) is sleeved with a spring (5); the upper plate (21) is elastically connected with the lower plate (22) through the spring (5).

3. The silent high pressure gear pump of claim 1, wherein, The outer side of the locking cap (3) is provided with strip-shaped grooves (31) at equal intervals.

4. The silent high pressure gear pump of claim 1, wherein, The lower plate (22) is fixedly connected with ear plates (6) at four corners, and small holes (7) are formed in the surfaces of the ear plates (6).

5. The silent high pressure gear pump of claim 2, wherein, The top end of the connecting rod (4) is provided with a limiting block (8).

6. The silent high pressure gear pump of claim 1, wherein, The top end of the inserting column (25) is provided with a chamfer.

7. The silent high pressure gear pump of claim 1, wherein, A driving shaft (9) is rotatably connected in the pump body (1), and the one end of the driving shaft (9) is provided with a key groove (10).

8. The silent high pressure gear pump of claim 1, wherein, A buffer pad (12) is arranged between the pump body (1) and the base (2).

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