Low-noise open loop engineering mechanical pump

Abstract

The utility model discloses a low-noise open loop engineering mechanical pump which comprises a pump body, a driving motor is arranged above the pump body, a noise reduction shell is arranged on the outer side of the driving motor in an embedded mode, the bottom of the noise reduction shell is installed above the top of the pump body through screws, and the low-noise open loop engineering mechanical pump further comprises the pump body, a conveying pipe is installed at the upper end and the lower end of the front end of the pump body in a grooved and sealed mode. And connecting pipes penetrate through the interiors of the two conveying pipes, the two conveying pipes are symmetrically arranged about the transverse center line of the pump body, and noise reduction cotton is arranged on the inner side of the bottom of the noise reduction shell in an attached mode. According to the low-noise open loop engineering mechanical pump, the noise reduction shell is arranged on the outer side of the driving motor in a nested mode, then the inner side of the bottom of the noise reduction shell is connected to the outer side wall of the driving motor in an attached mode through noise reduction cotton, and noise generated by using the driving motor can be absorbed through the noise reduction cotton; noise is prevented from being discharged to the outer side through the noise reduction shell, noise is reduced, and the service life of the pump body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical pumps, in particular to a low-noise open-loop engineering mechanical pump. Background Art

[0002] An open-loop construction machinery pump is a hydraulic system device, characterized in that the inlet of the hydraulic pump and the outlet of the actuator are both connected to the oil tank. This design enables the oil tank to compensate and balance the changes in the volume of hydraulic oil in the pipeline system and the actuator, and also helps the system dissipate heat. In an open-loop system, in order to increase the stability of the hydraulic system, it is usually necessary to add a back pressure valve to the loop to increase the pressure of the return oil. Open-loop construction machinery pumps generally use a fixed displacement pump or a one-way variable displacement pump as a hydraulic pump. These systems are widely used in situations where low precision is required;

[0003] In the "A Pneumatic Mechanical Pump" with the patent publication CN220705913U, a support frame is included, the inner cavity of the support frame is provided with an output pipe and a water pipe, the inner cavity of the output pipe is fixedly sleeved with a threaded column, the inner cavity of the water pipe is provided with a threaded groove, the sizes of the threaded column and the threaded groove are adapted to each other, the threaded grooves at one end of the threaded column away from the output pipe are threadedly sleeved with each other, a plurality of springs and extrusion blocks are provided on the periphery of the output pipe and the water pipe, the sides of the plurality of extrusion blocks are fixedly connected with extrusion rods, a mechanical pump body is provided on the top of the support frame, and a plurality of rotating clamping plates are provided on both sides of the mechanical pump body. The utility model can not only connect the output pipe and the water pipe, but also increase the firmness of the connection between the output pipe and the water pipe, increase the airtightness of the device, and achieve the purpose of rapid installation and disassembly of the device;

[0004] However, when the open-loop engineering mechanical pump is used, because the mechanical pump is mostly driven by the drive motor to drive the mechanical pump, the drive motor will generate large vibrations during use, and then generate large noise, but the noise will threaten the health of nearby workers, and it is not convenient for the stable use of the open-loop engineering mechanical pump in the later stage;

[0005] Therefore, we proposed a low-noise open-loop engineering machinery pump that can solve the above problems well. Utility Model Content

[0006] The purpose of the utility model is to provide a low-noise open-loop engineering machinery pump to solve the problem raised by the above-mentioned background technology that most mechanical pumps in the market are driven by a driving motor when in use, but the driving motor will produce large vibrations during use, and then will produce large noise, but the noise will threaten the health of nearby workers and is not convenient for the stable use of the open-loop engineering machinery pump in the later stage.

[0007] To achieve the above object, the utility model provides the following technical solution: a low-noise open-loop engineering machinery pump, comprising a pump body, a drive motor is arranged on the top of the pump body, and a noise reduction shell is nested on the outside of the drive motor, and the bottom of the noise reduction shell is installed above the top of the pump body by screws;

[0008] It also includes: a pump body, the upper and lower ends of the front end of which are grooved and sealed with delivery pipes, and the interiors of the two delivery pipes are penetrated by connecting pipes, and the two delivery pipes are symmetrically arranged about the transverse center line of the pump body, a noise reduction shell, the inner side of the bottom of which is fitted with noise reduction cotton, and the inner side of the noise reduction cotton is fitted and connected to the bottom outer side wall of the driving motor, and the noise reduction cotton is made of glass fiber sound insulation cotton material.

[0009] Preferably, the driving motor has extrusion rods connected to its upper and lower outer sides through movable shafts, and the four extrusion rods are all inclined, and the outer ends of the four extrusion rods are connected to moving blocks through movable shafts, and the four moving blocks are slidably installed on the upper and lower sides of the interior of the noise reduction shell; the noise reduction shell has buffer springs slotted on the upper and lower outer sides of its inner ends, and the four buffer springs have the same structure, and the outer ends of the four buffer springs are connected to moving blocks, and the positions of the moving blocks after the four extrusion movements can be elastically reset by the elastic force of the four buffer springs themselves, thereby the positions of the extrusion rods after the four extrusion swings can be elastically reset.

[0010] Preferably, the noise reduction shell is provided with cushioning airbags at both ends thereof, and the inner sides of the two cushioning airbags are both closely connected to the outer side wall of the driving motor. The two cushioning airbags can increase the anti-vibration cushioning performance between the noise reduction shell and the driving motor.

[0011] Preferably, the outer ends of the two upper moving blocks are connected to pull ropes, and the outer ends of the two pull ropes are wrapped and connected to the output ends of the two rotating gears, and the output ends of the two rotating gears are rotatably installed on both sides of the top of the noise reduction shell through torsion springs, the outer sides of the two rotating gears are meshed and connected to transmission gears, and the two transmission gears are rotatably installed on both sides of the top of the noise reduction shell, and the output ends of the two transmission gears are connected to sealing plates, and the bottoms of the two sealing plates correspond to driving motors, so that the elastic force of the two torsion springs themselves can be used to elastically reset the positions of the two rotating gears after rotation.

[0012] Preferably, the conveying tube has grooves at both ends thereof and is slidably connected to a pull rod through a reset spring, and the inner ends of the two pull rods are connected to positioning plates by screws, and the inner sides of the two positioning plates are attached to the outer wall of the connecting tube by anti-slip pads, so that the positions of the two pull rods can be elastically reset by the elastic force of the two reset springs themselves.

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

[0014] (1) A noise reduction shell is nested on the outside of the driving motor, and then the inner side of the bottom of the noise reduction shell is connected to the outer wall of the driving motor through noise reduction cotton. The noise generated by the driving motor can be absorbed by the noise reduction cotton to prevent the noise from being discharged to the outside through the noise reduction shell, thereby reducing the noise and increasing the service life of the pump body;

[0015] (2) Furthermore, by using the extrusion rods connected to both sides of the pump body through the movable shaft, and then the outer ends of the two extrusion rods are connected to the moving blocks through the movable shaft, the four extrusion rods can be driven to move the four moving blocks through the movable shaft while the driving motor generates vibration. At this time, the four buffer springs will use their own elastic force to facilitate the elastic reset of the four extrusion moving blocks, and then the two buffer air bags will also increase the anti-seismic buffering performance between the noise reduction shell and the driving motor, thereby improving the service life of the driving motor;

[0016] (3) Furthermore, by using the output ends of the two rotating gears connected to the outer sides of the two upper moving blocks through the rope, the two torsion springs will loosen when the two upper moving blocks are moved, and then the two rotating gears will be driven to drive the two transmission gears to rotate at the same time, and then the sealing plates connected to the output ends of the two transmission gears will also flip and swing, so that the heat generated by the drive motor can be intermittently and stably discharged to the outside of the noise reduction shell, thereby improving the heat dissipation efficiency of the drive motor;

[0017] (4) Positioning plates are provided at both ends of the conveying pipe, and then the inner sides of the two positioning plates are connected to the outer wall of the connecting pipe outside through anti-skid pads. The friction between the conveying pipe and the connecting pipe can be increased by the two anti-skid pads to prevent the connecting pipe from loosening and falling off due to dragging during later use;

[0018] (5) Furthermore, by using grooves at both ends of the inner part of the conveying pipe and slidingly connecting pull rods through reset springs, when the connecting pipe needs to be quickly disassembled and replaced in the later stage, it is only necessary to manually pull the pull rod to drive the positioning plate to move the position. At this time, the positioning plate can be separated from the connecting pipe, thereby facilitating the rapid disassembly and replacement of the connecting pipe. Finally, the elastic force of the two reset springs can be used to elastically reset the positions of the two pull rods after they are pulled. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main cross-sectional structure of the noise reduction housing and the drive motor of the utility model;

[0021] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 This is a schematic diagram of the main cross-sectional structure of the noise reduction shell and the sealing plate of the utility model after flipping;

[0023] Figure 5 It is a schematic diagram of the partial three-dimensional structure of the rotating gear and the transmission gear of the utility model;

[0024] Figure 6 This is a schematic diagram of the top-sectional structure of the delivery pipe and the positioning plate of the utility model;

[0025] Figure 7 It is a schematic diagram of the top-down structure of the conveying pipe and the positioning plate of the utility model after movement.

[0026] In the figure: 1. Pump body; 2. Delivery pipe; 3. Noise reduction shell; 4. Reset spring; 5. Sealing plate; 6. Driving motor; 7. Extrusion rod; 8. Moving block; 9. Buffer spring; 10. Buffer airbag; 11. Pull rope; 12. Rotating gear; 13. Transmission gear; 14. Torsion spring; 15. Noise reduction cotton; 16. Positioning plate; 17. Anti-slip pad; 18. Pull rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] This utility provides the following technical solutions:

[0029] Embodiment 1, in order to solve the problem that the existing driving motor 6 cannot reduce the noise generated by its use, discloses:

[0030] A pump body 1 is provided with a driving motor 6 on the top thereof, and a noise reduction shell 3 is nested on the outside of the driving motor 6, and the bottom of the noise reduction shell 3 is installed on the top of the pump body 1 by screws;

[0031] It also includes: a pump body 1, the upper and lower ends of the front end of which are grooved and sealed to install delivery pipes 2, and the interiors of the two delivery pipes 2 are penetrated by connecting pipes, and the two delivery pipes 2 are symmetrically arranged about the transverse center line of the pump body 1, a noise reduction shell 3, the inner side of the bottom of which is fitted with noise reduction cotton 15, and the inner side of the noise reduction cotton 15 is fitted and connected to the bottom outer side wall of the driving motor 6, and the noise reduction cotton 15 is made of glass fiber sound insulation cotton material.

[0032] like Figure 1-Figure 4 As shown, when the driving motor 6 is used in conjunction with the pump body 1, the driving motor 6 will generate a large noise due to use. At this time, the noise reduction cotton 15 arranged at the bottom of the noise reduction shell 3 will absorb the noise generated by use to prevent the noise from being reflected on the inner wall of the noise reduction shell 3, thereby reducing the noise and increasing the service life of the pump body 1.

[0033] Embodiment 2 is different from Embodiment 1 in that the heat generated by the driving motor 6 can be evenly dissipated, and the following is disclosed:

[0034] The driving motor 6 has extrusion rods 7 connected to its upper and lower outer sides through movable shafts, and the four extrusion rods 7 are all inclined, and the outer ends of the four extrusion rods 7 are connected to moving blocks 8 through movable shafts, and the four moving blocks 8 are slidably installed on the upper and lower sides of the interior of the noise reduction shell 3. The noise reduction shell 3 has buffer springs 9 grooved on the outer sides of its upper and lower ends, and the four buffer springs 9 have the same structure, and the outer ends of the four buffer springs 9 are connected to moving blocks 8. The noise reduction shell 3 has buffer airbags 10 arranged at both ends of its interior, and the inner sides of the two buffer airbags 10 are fit-connected to the outer wall of the driving motor 6.

[0035] The outer ends of the two upper moving blocks 8 are connected to pull ropes 11, and the outer ends of the two pull ropes 11 are wound around the output ends of the two rotating gears 12, and the output ends of the two rotating gears 12 are rotatably installed on both sides of the top of the noise reduction shell 3 through torsion springs 14, the outer sides of the two rotating gears 12 are meshed and connected with transmission gears 13, and the two transmission gears 13 are rotatably installed on both sides of the top of the noise reduction shell 3, and the output ends of the two transmission gears 13 are connected to sealing plates 5, and the bottoms of the two sealing plates 5 correspond to driving motors 6.

[0036] like Figure 1-Figure 5As shown, when the driving motor 6 generates vibration during use, the extrusion rods 7 connected to the movable shafts on the upper and lower sides thereof will simultaneously squeeze the four moving blocks 8 to move their positions, and then the four buffer springs 9 will conveniently elastically reset the four squeezed moving blocks 8 through their own elastic force, and at this time, the buffer air bags 10 arranged on both sides of the noise reduction shell 3 will increase the anti-seismic buffering performance between the noise reduction shell 3 and the driving motor 6, thereby increasing the service life of the driving motor 6;

[0037] When the two upper moving blocks 8 are squeezed and moved, the two pull ropes 11 will become loose, and then the two torsion springs 14 will drive the two rotating gears 12 to reset and rotate through their own elastic force, and then the two rotating gears 12 will simultaneously drive the sealing plates 5 connected to the output ends of the two transmission gears 13 to flip over at the same time, at this time, the heat on the inside of the noise reduction shell 3 can be intermittently dissipated to avoid heat accumulation inside the noise reduction shell 3 and affecting the stable use of the later drive motor 6, and when the four moving blocks 8 move and reset, they will also drive the two pull ropes 11 to pull the rotating gears 12 to rotate, and then the two sealing plates 5 can be flipped and reset, thereby improving the heat dissipation efficiency of the drive motor 6.

[0038] Embodiment 3 is different from Embodiment 2 in that the external connecting pipe can be quickly disassembled and replaced, and discloses:

[0039] The conveying pipe 2 has grooves at both ends thereof and is slidably connected to a pull rod 18 through a return spring 4, and the inner ends of the two pull rods 18 are connected to a positioning plate 16 by screws, and the inner sides of the two positioning plates 16 are attached to the outer wall of the connecting pipe by anti-slip pads 17.

[0040] like Figure 1-Figure 7 As shown, when it is necessary to clamp and position the external connecting pipe, the two pull rods 18 are manually pulled to move the position. At this time, the positioning plates 16 connected to the inner ends of the two pull rods 18 will move at the same time. At this time, the connecting pipe can be quickly disassembled and replaced, and finally the elastic force of the two reset springs 4 can be used to elastically reset the positions of the two pull rods 18 after being pulled. Then, the two positioning plates 16 can be driven at the same time to clamp and position the connecting pipe through the anti-slip pad 17 to avoid the connecting pipe from loosening and falling off due to external dragging. The practicability is better and the operation is more time-saving and labor-saving.

[0041] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention is described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-noise open-loop engineering machinery pump, comprising a pump body (1), a drive motor (6) being arranged above the pump body, a noise reduction shell (3) being nested outside the drive motor (6), and a bottom of the noise reduction shell (3) being mounted above the top of the pump body (1) by screws; It is characterized in that Also includes: The pump body (1) has grooves at both upper and lower ends of its front end and is sealed with delivery pipes (2), and the interiors of the two delivery pipes (2) are penetrated by connecting pipes, and the two delivery pipes (2) are symmetrically arranged about the transverse center line of the pump body (1); The noise reduction shell (3) has noise reduction cotton (15) fitted on the inner side of its bottom, and the inner side of the noise reduction cotton (15) is fitted and connected to the outer side wall of the bottom of the driving motor (6), and the noise reduction cotton (15) is made of glass fiber sound insulation cotton material.

2. A low-noise open-loop engineering machinery pump according to claim 1, characterized in that: The driving motor (6) has extrusion rods (7) connected to the outer sides of both upper and lower ends through movable shafts, and the four extrusion rods (7) are all inclined, and the outer ends of the four extrusion rods (7) are connected to moving blocks (8) through movable shafts, and the four moving blocks (8) are slidably installed on the upper and lower sides of the interior of the noise reduction shell (3).

3. A low-noise open-loop engineering machinery pump according to claim 2, characterized in that: The noise reduction shell (3) has grooves on the outer sides of both upper and lower ends thereof and buffer springs (9) are provided thereon. The four buffer springs (9) have the same structure, and the outer ends of the four buffer springs (9) are connected to moving blocks (8).

4. A low-noise open-loop engineering machinery pump according to claim 1, characterized in that: The noise reduction shell (3) has cushioning airbags (10) disposed at both ends thereof, and the inner sides of the two cushioning airbags (10) are both closely connected to the outer side wall of the driving motor (6).

5. A low-noise open-loop engineering machinery pump according to claim 1, characterized in that: The outer ends of the two upper moving blocks (8) are connected to pull ropes (11), and the outer ends of the two pull ropes (11) are wound around the output ends of the two rotating gears (12), and the output ends of the two rotating gears (12) are rotatably mounted on both sides of the top of the noise reduction shell (3) through torsion springs (14).

6. A low-noise open-loop engineering machinery pump according to claim 5, characterized in that: The outer sides of the two rotating gears (12) are meshedly connected with transmission gears (13), and the two transmission gears (13) are rotatably mounted on both sides of the top of the noise reduction shell (3), and the output ends of the two transmission gears (13) are connected to sealing plates (5), and the bottoms of the two sealing plates (5) correspond to driving motors (6).

7. A low-noise open-loop engineering machinery pump according to claim 1, characterized in that: The conveying pipe (2) has grooves at both ends thereof and is slidably connected to a pull rod (18) through which a return spring (4) passes. The inner ends of the two pull rods (18) are connected to a positioning plate (16) by screws, and the inner sides of the two positioning plates (16) are attached to the outer wall of the connecting pipe by anti-slip pads (17).

Images