Low-noise hydraulic gear pump

Abstract

The utility model discloses a low-noise hydraulic gear pump which comprises a gear pump body, a base is arranged below the gear pump body, two sets of symmetrically-distributed side plates are arranged above the base, a bottom plate is arranged above the base, and a panel is arranged between the two sets of side plates and the gear pump body. Two sets of supports which are distributed in a crossed mode are arranged between the bottom plate and the base and between the face plate and the side plates, sliding blocks are rotationally installed at the ends, away from the bottom plate or the face plate, of the two sets of supports, first damping rods are fixedly installed on the sliding blocks, and first springs are connected to the first damping rods in a sleeving mode; damping protection in the operation process of the gear pump is achieved through the supports which are matched with the bottom plate and the face plate and distributed in a crossed mode, the sliding blocks on the supports, the first damping rods, the first springs and the like, and the first damping rods and the first springs are fixedly installed on the sliding blocks. And noise caused by vibration of different degrees due to self inertia, gear clearance and the like during the operation of the gear pump is reduced to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear pump technical field, concretely is low noise hydraulic gear pump. BACKGROUND

[0002] Gear pump is the rotary pump that the volume change and removal of the working volume formed between pump cylinder and meshing gear are relied on to transport liquid or make it pressurized. Two closed spaces are formed by two gears, pump body and front and back covers, when the gear rotates, the volume of the space on the gear disengagement side changes from small to large, vacuum is formed, liquid is sucked in, the volume of the space on the gear meshing side changes from large to small, and liquid is extruded into the pipeline.

[0003] In the prior art, gear pump will produce vibration of different degrees when rotating at high speed due to its inertia, gear gap and other reasons, plus the inherent resonance frequency of the pump body, which will cause noise, and the water flow impact generated by the opening of the gear pump is easy to cause the hose to shake, which in turn leads to loosening at the position where the hose is connected with the gear pump, not only further producing noise, but also possibly causing liquid to leak from the connection, thereby affecting the working efficiency of the gear pump. SUMMARY

[0004] The utility model discloses a low noise hydraulic gear pump, which aims to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a low noise hydraulic gear pump, comprising a gear pump, a base is arranged below the gear pump, two groups of symmetrical distribution side plates are arranged above the base, a bottom plate is arranged above the base, a panel is arranged between the two groups of side plates and the gear pump, the panel is attached to the side wall of the gear pump, two groups of cross-distributed supports are arranged between the bottom plate and the base and between the panel and the side plate, the two groups of supports are respectively rotatably connected with the corresponding bottom plate or panel, a sliding block is rotatably installed at the end of the two groups of supports away from the bottom plate or panel, a first damping rod is fixedly installed on the sliding block, a first spring is sleeved on the first damping rod, the end of the first damping rod away from the sliding block is fixedly connected with the corresponding base or side plate, the two ends of the first spring are fixedly connected with the two ends of the first damping rod, a connecting port is formed in each of the two groups of side plates, a mounting seat is arranged in the connecting port, and four groups of symmetrical distribution second damping rods are arranged between the mounting seat and the connecting port.

[0006] As a further preferred embodiment of the present technical solution, a cover plate is arranged above the two groups of side plates, the cover plate is movably connected with the two groups of side plates and the base, and a rubber pad is fixedly installed in the cover plate.

[0007] As a further preferred of the technical solution, the base and the side plate are internally fixedly installed with sliding rods, two groups of symmetrical third springs are sleeved on the sliding rods, the sliding blocks are respectively slidably connected with the corresponding base or side plate, the sliding blocks are slidably sleeved with the corresponding sliding rods, and the two ends of the third springs are respectively fixedly connected with the corresponding base or side plate and sliding block.

[0008] As a further preferred of the technical solution, the base is internally provided with a bidirectional screw rod, the two groups of side plates are slidably connected with the base, and the two ends of the bidirectional screw rod respectively penetrate through the two groups of side plates and are threadedly connected with the two groups of side plates.

[0009] As a further preferred of the technical solution, the two ends of the second damping rod are respectively fixedly connected with the mounting seat and the connecting port, a second spring is sleeved on the second damping rod, and the two ends of the second spring are respectively fixedly connected with the two ends of the damping rod.

[0010] As a further preferred of the technical solution, a rubber ring is arranged between the connecting port and the mounting seat, and the inner and outer sides of the rubber ring are respectively fixedly connected with the mounting seat and the connecting port.

[0011] As a further preferred of the technical solution, a mounting ring is rotatably installed in the mounting seat, a gear ring is sleeved on the mounting ring, a plurality of annularly distributed positioning plates are arranged on the mounting seat, the plurality of positioning plates are rotatably connected with the mounting seat through mounting shafts, a gear is sleeved on each of the mounting shafts, and the plurality of gears are meshingly connected with the gear ring.

[0012] The low-noise hydraulic gear pump has the following beneficial effects:

[0013] (1) The bottom plate, the panel, the cross-distributed support, the sliding block on the support, the first damping rod and the first spring fixedly installed on the sliding block are arranged, so that the shock absorption protection during the operation of the gear pump is realized, the noise caused by the vibration of different degrees due to the inertia, gear clearance and the like of the gear pump during the operation is reduced to a certain extent, the influence of external vibration on the operation of the gear pump is avoided under the shock absorption protection of the support, the sliding block, the first damping rod and the first spring and the like components, the abrasion of the gear pump as a whole caused by the inertia, gear clearance and the like of the gear pump during the operation is reduced, and the service life of the gear pump is prolonged.

[0014] (2) The utility model discloses a mounting seat and the positioning plate annular distribution in mounting seat are arranged to realize the limiting and fixed of the connecting pipe connected with the gear pump, and the second damping rod and the second spring at mounting seat and connecting port are arranged to realize the shock absorption protection of the connecting pipe and the gear pump connection, avoid the loosening of the connecting pipe and the gear pump connection due to the shaking of the connecting pipe or the gear pump, not only can produce the noise, but also can cause the loosening of the connecting pipe and the leakage of liquid. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the structure separation schematic diagram of base and side plate of the utility model;

[0017] Figure 3 It is the structure separation schematic diagram of side plate and faceplate of the utility model;

[0018] Figure 4 It is the structure separation schematic diagram of side plate and mounting seat of the utility model; Figure 3 The structure enlarged view of A place;

[0019] Figure 5 It is the structure separation schematic diagram of side plate and mounting seat of the utility model;

[0020] Figure 6 It is the structure separation schematic diagram of side plate and mounting seat of the utility model; Figure 5 The structure enlarged view of B place;

[0021] In the drawing: 1, gear pump; 2, base; 3, side plate; 4, cover plate; 5, bottom plate; 6, bidirectional screw rod; 7, faceplate; 8, rubber pad; 9, support; 10, sliding block; 11, slide rod; 12, third spring; 13, first damping rod; 14, first spring; 15, connecting port; 16, rubber ring; 17, mounting seat; 18, second damping rod; 19, second spring; 20, mounting ring; 21, positioning plate; 22, mounting shaft; 23, gear; 24, gear ring. DETAILED DESCRIPTION

[0022] The technical scheme in the utility model embodiment will be clearly and completely described below with reference to the drawings in the utility model embodiment.

[0023] The utility model provides technical scheme: as Figures 1-4As shown, in this embodiment, the low-noise hydraulic gear pump, including gear pump 1, gear pump 1 below is equipped with base 2, base 2 above is equipped with two groups of symmetrically distributed side plate 3, base 2 above is equipped with bottom plate 5, two groups of side plate and gear pump 1 between the panel 7, panel 7 and the side wall of gear pump 1 fit, bottom plate 5 and base 2 between and panel 7 and side plate 3 between are equipped with two groups of cross distribution of support 9, two groups of support 9 are respectively connected with corresponding bottom plate 5 or panel 7, two groups of support 9 away from bottom plate 5 or panel 7 one end is rotatably installed with sliding block 10, sliding block 10 is fixedly installed with first damping rod 13, first damping rod 13 is sleeved with first spring 14, first damping rod 13 away from sliding block 10 one end is respectively fixedly connected with corresponding base 2 or side plate 3, both ends of first spring 14 are fixedly connected with both ends of first damping rod 13, two groups of side plate 3 are all provided with connecting port 15, connecting port 15 is equipped with mounting seat 17, mounting seat 17 and connecting port 15 between is equipped with four groups of symmetrically distributed second damping rod 18, two groups of side plate 3 above is equipped with cover plate 4, cover plate 4 is respectively with two groups of side plate 3 and base 2 movable clamping, cover plate 4 is fixedly installed with rubber pad 8, base 2 and side plate 3 in are all fixedly installed with slide rod 11, slide rod 11 is sleeved with two groups of symmetrically distributed third spring 12, sliding block 10 is respectively connected with corresponding base 2 or side plate 3, sliding block 10 and corresponding slide rod 11 sliding sleeve, both ends of third spring 12 are respectively fixedly connected with corresponding base 2 or side plate 3 and sliding block 10, base 2 is equipped with two-way screw 6, two groups of side plate 3 are all connected with base 2 slidingly, both ends of two-way screw 6 are respectively penetrated through two groups of side plate 3 and are respectively connected with two groups of side plate 3 screw, gear pump 1 is placed on bottom plate 5, and the rotation of two-way screw 6 is driven by the motor in base 2, under the limiting action of base 2 makes two groups of side plate 3 synchronous sliding inwards, until the panel 7 on two groups of side plate 3 and the side wall of gear pump 1 fit, cover cover plate 4, make gear pump 1 in multi-surface protection, in the use process of the gear pump 1, due to the inertia or gear 23 gap of itself and other reasons, when the gear 23 vibration, first spring 14, third spring 12 will produce deformation to absorb vibration energy and temporarily store, and consume the energy absorbed by first spring 14 under the action of first damping rod 13, complete for gear pump 1 shock absorption protection, further reduce the noise caused by gear pump 1 vibration.

[0024] As Figure 5 And Figure 6As shown, the two ends of the second damping rod 18 are fixedly connected with the mounting seat 17 and the connecting port 15 respectively, a second spring 19 is sleeved on the second damping rod 18, the two ends of the second spring 19 are fixedly connected with the two ends of the damping rod respectively, a rubber ring 16 is arranged between the connecting port 15 and the mounting seat 17, the inner and outer sides of the rubber ring 16 are fixedly connected with the mounting seat 17 and the connecting port 15 respectively, a mounting ring 20 is rotatably mounted in the mounting seat 17, a gear ring 24 is sleeved on the mounting ring 20, a plurality of groups of positioning plates 21 are arranged in annular distribution on the mounting seat 17, the plurality of groups of positioning plates 21 are rotatably connected with the mounting seat 17 through mounting shafts 22, a plurality of gears 23 are sleeved on the plurality of groups of mounting shafts 22, the plurality of gears 23 are meshingly connected with the gear ring 24, the connecting pipe is connected with the gear pump 1 through the connecting port 15, and the rotation of the mounting shaft 22 is driven by starting the motor in the mounting seat 17, the synchronous rotation of the plurality of groups of mounting shafts 22 and the positioning plates 21 fixedly mounted on the mounting shafts 22 is realized by cooperating with the plurality of gears 23 and the gear ring 24, until the connecting pipe is clamped at the central position by the plurality of groups of positioning plates 21, the positioning of the connecting pipe is completed, the vibration energy caused by the liquid impact on the connecting pipe or the gear pump 1 is absorbed by the second damping rod 18 and the second spring 19 in the use process, the influence of the liquid impact on the use stability of the connecting pipe is reduced, further noise reduction is realized, and the fixing strength of the connecting pipe is strengthened.

[0025] The utility model provides low noise hydraulic gear pump, specific working principle is as follows: gear pump 1 is placed on bottom plate 5, and is driven the rotation of two -way screw rod 6 through the motor in base 2, makes two groups of side plate 3 synchronous slide inwards under the limiting action of base 2, until the panel 7 on two groups of side plate 3 and the lateral wall of gear pump 1 are pasted, cover up the cover plate 4, make gear pump 1 be in the protection of many sides, when the gear pump 1 uses, the first spring 14, third spring 12 will produce deformation absorption vibration energy and will it temporarily store when the vibration of gear 23 is caused by the inertia of itself or the clearance of gear 23 etc., and the energy that absorbs first spring 14 under the action of first damping rod 13, complete the shock absorption protection of gear pump 1, further reduce the noise caused by the vibration of gear pump 1, connecting pipe is connected with gear pump 1 through connecting port 15, and the rotation of mounting shaft 22 is driven by starting the motor in mounting seat 17, the synchronous rotation of the plurality of groups of mounting shafts 22 and the positioning plates 21 fixedly mounted on the mounting shafts 22 is realized by cooperating with the plurality of gears 23 and the gear ring 24, until the connecting pipe is clamped at the central position by the plurality of groups of positioning plates 21, the positioning of the connecting pipe is completed, the vibration energy caused by the liquid impact on the connecting pipe or the gear pump 1 is absorbed by the second damping rod 18 and the second spring 19 in the use process, the influence of the liquid impact on the use stability of the connecting pipe is reduced, further noise reduction is realized, and the fixing strength of the connecting pipe is strengthened.

[0026] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Low noise hydraulic gear pump comprising a gear pump (1), characterized in that: The gear pump (1) is provided below the base (2), the base (2) is provided above two groups of symmetrically distributed side plates (3), the base (2) is provided above the bottom plate (5), two groups of the side plate and gear pump (1) are provided between the panel (7), the panel (7) is attached with the side wall of gear pump (1), the bottom plate (5) and the base (2) are provided between the panel (7) and the side plate (3), and two groups of the bracket (9) are provided between the panel (7) and the side plate (3), two groups of the bracket (9) are respectively connected with the corresponding bottom plate (5) or panel (7), the end of two groups of the bracket (9) away from the bottom plate (5) or panel (7) is rotatably installed with the sliding block (10), the first damping rod (13) is fixedly installed on the sliding block (10), the first spring (14) is sleeved on the first damping rod (13), the end of the first damping rod (13) away from the sliding block (10) is fixedly connected with the corresponding base (2) or side plate (3), the two ends of the first spring (14) are fixedly connected with the two ends of the first damping rod (13), the connecting port (15) is formed in the two groups of side plates (3), the mounting seat (17) is arranged in the connecting port (15), and the four groups of symmetrically distributed second damping rods (18) are arranged between the mounting seat (17) and the connecting port (15).

2. The low noise hydraulic gear pump of claim 1, wherein: Two groups of the side plate (3) are provided above the cover plate (4), the cover plate (4) is movably clamped with the two groups of side plates (3) and the base (2), and the rubber pad (8) is fixedly installed in the cover plate (4).

3. The low noise hydraulic gear pump of claim 1, wherein: The sliding rod (11) is fixedly installed in the base (2) and the side plate (3), the third spring (12) is symmetrically sleeved on the sliding rod (11), the sliding block (10) is slidably connected with the corresponding base (2) or side plate (3), the sliding block (10) is slidably sleeved with the corresponding sliding rod (11), and the two ends of the third spring (12) are fixedly connected with the corresponding base (2) or side plate (3) and the sliding block (10).

4. The low noise hydraulic gear pump of claim 1, wherein: The bidirectional screw rod (6) is arranged in the base (2), and the two groups of side plates (3) are slidably connected with the base (2), the two ends of the bidirectional screw rod (6) penetrate through the two groups of side plates (3) and are threadedly connected with the two groups of side plates (3) respectively.

5. The low noise hydraulic gear pump of claim 1, wherein: The two ends of the second damping rod (18) are fixedly connected with the mounting seat (17) and the connecting port (15), the second spring (19) is sleeved on the second damping rod (18), and the two ends of the second spring (19) are fixedly connected with the two ends of the damping rod.

6. The low noise hydraulic gear pump of claim 1, wherein: The rubber ring (16) is arranged between the connecting port (15) and the mounting seat (17), and the inner and outer sides of the rubber ring (16) are fixedly connected with the mounting seat (17) and the connecting port (15) respectively.

7. The low noise hydraulic gear pump of claim 1, wherein: A mounting ring (20) is rotatably mounted in the mounting seat (17), and a tooth ring (24) is sleeved on the mounting ring (20); a plurality of groups of positioning plates (21) are arranged in a ring shape on the mounting seat (17), and each group of the positioning plates (21) is rotatably connected with the mounting seat (17) through a mounting shaft (22); a gear (23) is sleeved on each of the mounting shafts (22), and each of the gears (23) is meshedly connected with the tooth ring (24).

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