Multi-orientation damping double-suction pump capable of avoiding installation looseness and working method

Abstract

The invention discloses a multi-orientation damping double-suction pump capable of avoiding mounting looseness and a working method, and belongs to the technical field of double-suction pumps. The multi-orientation damping double suction pump comprises a pump body, protection frames are arranged on the two sides of the pump body, and gears are arranged at the lower ends of the interiors of the protection frames. The electromagnetic pump solves the problems that according to an existing electromagnetic pump with a damping structure, the damping structure is mostly located at the lower end of a pump body, the connecting position of the pump and a pipeline cannot be damped and protected, the connecting position of the pump and the pipeline is prone to loosening, and the service life and the use safety are affected. After the transmission block rotates, the second shock absorber can be driven to rotate through transmission of the gear and the second transmission ring, rotation of the second shock absorber can surround the liquid conveying positions at the two ends of the pump body, shock absorption is conducted on the liquid conveying positions, multi-directional shock absorption is completed through rotation, and mounting looseness is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of double-suction pumps, in particular to a multi-directional shock-absorbing double-suction pump and a working method to avoid loose installation. Background Art

[0002] The double-suction pump is an important form of centrifugal pump. Its core feature is a structure composed of two back-to-back impellers. This design allows the double-suction pump to double its flow rate with the same impeller outer diameter, and the head is relatively high. The pump casing of the double-suction pump is horizontally split for easy inspection and maintenance, and its inlet and outlet are in the same direction and perpendicular to the pump shaft, which is conducive to the arrangement and installation of the pump and the inlet and outlet pipes. It is suitable for conveying clean water or liquids with physical and chemical properties similar to water.

[0003] A Chinese patent with publication number CN213176074U discloses an electromagnetic pump with a shock-absorbing structure, including a telescopic rod, a mounting plate B is arranged on the top of the telescopic rod, and a spring B is sleeved on the outer side of the telescopic rod. Through the mutual cooperation of the telescopic rod, sleeve, spring A, hinged rod, spring B, mounting plate A, spring C and mounting plate B, a buffering force is generated during use, which reduces the noise generated by vibration and also reduces damage to the device.

[0004] When the electromagnetic pump with a shock-absorbing structure of the above-mentioned patent is in use and extracting liquid, the impact force generated by the rotation of the impeller and the flow of liquid will be concentrated on the connection position between the pump and the pipeline. The shock-absorbing structure is mostly located at the lower end of the pump body, which cannot dampen and protect the connection position between the pump and the pipeline, and it is easy to cause looseness between the connection position between the pump and the pipeline, affecting the service life and safety of use. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-directional shock-absorbing double-suction pump and a working method that can avoid loose installation. The second shock absorber can be driven to rotate by the rotation of the transmission block through the transmission of the gear and the second transmission ring. The rotation of the second shock absorber can surround the liquid transmission positions at both ends of the pump body to dampen the liquid transmission positions. The rotation completes multi-directional shock absorption and avoids loose installation, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a multi-directional shock-absorbing double-suction pump that avoids loose installation, including a pump body, protective frames are provided on both sides of the pump body, a gear is provided at the lower end of the protective frame, a second transmission ring meshingly connected to the outside of the gear is provided at the upper end of the protective frame, a slewing bearing fixed to the liquid transmission position of the pump body by bolts is provided at a circular position inside the second transmission ring, five welded and fixed second shock absorbers are evenly distributed around the outer ring of the slewing bearing and the interior of the second transmission ring, the five second shock absorbers distributed around the slewing bearing will buffer the vibration transmitted at the slewing bearing position when rotating, and can cope with vibrations in different directions as the second shock absorber rotates, and vibrations in different directions can avoid loose installation.

[0007] Preferably, the circular position of the gear passes through the lower shell and is provided with a transmission block. A motor is provided on one side of the outside of the transmission block through a transmission belt transmission connection. A motor is provided at one end of the pump body. The transmission block can be driven to rotate through the transmission belt, and the rotation of the transmission block can pass through the lower shell and drive the gear to rotate, and the rotation of the gear will drive the second transmission ring at the upper end to rotate.

[0008] Preferably, a lower outer shell is provided at the lower end of the outside of the pump body, a limiting ring is welded to the upper end of the lower outer shell, and the lower ends of the pump body and the motor are connected with a first transmission ring by bolts. The protrusion of the limiting ring can limit the first transmission ring used to connect the pump body and the motor, thereby preventing the first transmission ring from falling off after shaking.

[0009] Preferably, a connecting rod is welded at the lower end of the first transmission ring, a first connecting ring is arranged on the outside of the connecting rod, and four welded springs are evenly distributed around the first connecting ring and the connecting rod. The vibration transmitted by the spring will be transmitted to the connecting rod, and the connecting rod will buffer the vibration to prevent the lower shell from shaking and generating noise due to the vibration.

[0010] Preferably, a connecting plate is welded to the lower end of the connecting rod, and a first shock absorber is provided at the four corners of the lower end of the connecting plate. A pair of brackets are laterally arranged between the upper end of the first shock absorber and the lower end of the connecting plate. The brackets are rotatably connected to one end of the first shock absorber through a connecting shaft. The connecting plate can be supported by the first shock absorber. At the same time, when the connecting plate shakes laterally, the lateral sliding will pull the first shock absorber, and the resilience of the first shock absorber can further improve the shock absorbing capacity of the pump body and the motor.

[0011] Preferably, a current sensor is provided at the upper end of the motor corresponding to the pump body, and a timing device is provided on one side of the current sensor. The current sensor and the timing device are electrically connected to the motor respectively. The starting status of the motor corresponding to the pump body can be detected by the current sensor, so that the motor corresponding to the pump body can drive the motor at the front end of the transmission block to start after starting, so that the transmission block can rotate and drive the second shock absorber to rotate.

[0012] Preferably, connecting frames are welded on both sides and the other end of the first connecting ring toward the inner wall of the lower shell, and the connecting frame is fixedly connected to the lower shell by bolts. The first connecting ring for support can be connected through the connecting frame, so that the first connecting ring suspends and supports the spring.

[0013] Preferably, the first transmission ring is located between the limiting ring and the connecting frame, and the first transmission ring that shakes due to shaking will be restricted between the limiting ring and the connecting frame. The restriction can prevent the shaking first transmission ring from falling off.

[0014] Preferably, the timing device and the current sensor are connected to the motor via bolts, and the bolt connection can facilitate installation and disassembly of the current sensor and the timing device.

[0015] The working method of the multi-directional shock-absorbing double-suction pump to avoid loose installation includes the following steps:

[0016] Step 1: Start the motor corresponding to the pump body, and the impeller rotates inside the pump body to extract the position of the pipes connected to both ends of the pump body;

[0017] Step 2: After detecting the start of the motor, the current sensor will start the corresponding motor at one end of the transmission block, and then drive the transmission block to rotate after being transmitted by the transmission belt;

[0018] Step 3: The transmission block rotates to drive the gear to rotate through the lower housing, and the gear rotation drives the second transmission ring to rotate through meshing connection. The vibration generated by the connecting pipes at both ends of the pump body when pumping liquid will be buffered and damped by the rotating second shock absorber;

[0019] Step 4: The vibration of the pump body and the motor will be transmitted to the spring by the connecting rod;

[0020] Step 5: After the pump body and the motor produce a large amount of shaking, the connecting rod will be transmitted to the connecting plate, and the resilience of the first shock absorber after being pulled can further reduce the shock of the upper pump body and the motor.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. When the impeller inside the pump body is started and liquid is extracted, vibration will be generated at the moment of liquid extraction, and the vibration will be transmitted to the outside of the rotatable slewing bearing. While the impeller rotates and extracts liquid, the rotation of the gear will drive the second transmission ring to rotate, and the second transmission ring will drive the second shock absorber connected to the slewing bearing to rotate. The rotating second shock absorber can receive and offset the vibration in different directions, keep a low profile and achieve shock absorption. The rotating second shock absorber performs all-round shock absorption to avoid loose installation.

[0023] 2. The first transmission ring for connecting the pump body and the motor of the present invention is limited between the limiting ring and the connecting frame. During the limitation process, the vibration generated by the startup of the pump body and the motor will be transmitted to the connecting frame and the connecting plate by the first transmission ring, wherein the shaking generated by the connecting rod position will be suppressed by the spring, and when the shaking amplitude is larger, the connecting plate will pull the first shock absorber at the lower end, so that the first shock absorber can further reduce the shock while supporting the pump body and the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a stereoscopic diagram of the overall external structure of the present invention;

[0025] Figure 2 It is a cross-sectional view of the internal structure of the lower housing of the present invention;

[0026] Figure 3 An exploded diagram of the position relationship of the first transmission ring of the present invention;

[0027] Figure 4 It is a cross-sectional view of the transmission structure of the transmission block of the present invention;

[0028] Figure 5 An exploded view of the internal structure of the protection frame of the present invention;

[0029] Figure 6 For the present invention Figure 5 A partial enlarged view of area A.

[0030] In the figure: 1, lower shell; 2, pump body; 3, motor; 4, current sensor; 5, timing device; 6, first transmission ring; 7, limiting ring; 8, protection frame; 9, first connecting ring; 10, connecting frame; 11, connecting rod; 12, spring; 13, connecting plate; 14, first shock absorber; 15, bracket; 16, connecting shaft; 17, transmission block; 18, second transmission ring; 19, second shock absorber; 20, slewing bearing; 22, gear. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with specific embodiments.

[0032] Example 1

[0033] like Figure 1 As shown, the multi-directional shock-absorbing double-suction pump for preventing loose installation in this embodiment includes a pump body 2, one end of the pump body 2 is provided with a motor 3, the output shaft of the motor 3 passes through the pump body 2 and rotates with the impeller inside the pump body 2, and the rotation of the impeller inside the pump body 2 can extract the pipes connected at both ends:

[0034] like Figure 1 and Figure 5 As shown, a lower shell 1 is provided at the lower end of the outer portion of the pump body 2, and protective frames 8 are provided on both sides of the upper end of the lower shell 1. The protective frames 8 correspond to the pipes connected to the two ends of the pump body 2, respectively. A gear 22 is provided at the lower end of the inner portion of the protective frame 8, and a second transmission ring 18 is provided at the upper end of the inner portion of the protective frame 8. The outer portion of the second transmission ring 18 is meshedly connected with the outer portion of the gear 22. When the pump body 2 is started and liquid is extracted, the vibration generated by the extraction of liquid will be buffered and shock-absorbed by the rotating second transmission ring 18.

[0035] The second transmission ring 18 is provided with a slewing bearing 20 inside. Figure 6 As shown, the inner ring of the slewing bearing 20 is fixedly connected with the positions at both ends of the pump body 2 for transmitting liquid by bolts, and the vibration generated by the extraction of liquid will be transmitted to the slewing bearing 20. Five second shock absorbers 19 are evenly distributed around the outer ring of the slewing bearing 20 and the inner part of the second transmission ring 18, and the two ends of the second shock absorber 19 are respectively welded and fixed to the second transmission ring 18 and the slewing bearing 20. After the gear 22 rotates and drives the second transmission ring 18 to rotate, the second transmission ring 18 will drive the second shock absorber 19 to rotate. The rotation of the second shock absorber 19 can cope with the vibration in different directions and improve the shock absorption effect.

[0036] In addition, if Figure 4 As shown, the gear 22 is circularly disposed through the lower housing 1 and is provided with a transmission block 17, a motor 3 is disposed on one side outside the transmission block 17, and the output shaft of the motor 3 is connected to the transmission block 17 through a transmission belt.

[0037] In order to reduce the vibration of the pump body 2 and the motor 3 corresponding to the pump body 2, as shown in FIG. Figure 2 and Figure 3 As shown, a limiting ring 7 is arranged around the upper end of the lower housing 1, and the limiting ring 7 is welded and fixed to the lower housing 1. When the pump body 2 and the motor 3 are installed, a first transmission ring 6 is arranged at the lower end of the pump body 2 and the motor 3, and the first transmission ring 6 is respectively fixedly connected to the lower end of the pump body 2 and the motor 3 by bolts. The bolted connection can improve the connection efficiency and the subsequent disassembly efficiency. The first transmission ring 6 is located inside the lower housing 1, and the limiting ring 7 can limit the first transmission ring 6 inside the lower housing 1, limit and prevent the first transmission ring 6 from falling off;

[0038] Among them, the lower end of the first transmission ring 6 is provided with a connecting rod 11, such as Figure 2 and Figure 3 As shown, the connecting rod 11 is welded and fixed with the first transmission ring 6, a first connecting ring 9 is arranged outside the connecting rod 11, four springs 12 are evenly distributed around the first connecting ring 9 and the connecting rod 11, after the pump body 2 and the motor 3 corresponding to the pump body 2 are started and vibrate, the vibrating force will be transmitted from the connecting rod 11 to the surrounding springs 12, the resilience of the spring 12 can actively buffer the vibration, and the resilience of the spring 12 can actively reset the pump body 2 and the motor 3 corresponding to the pump body 2, and the resilience of the connecting rod 11 can prevent the lower housing 1 from shaking greatly due to the vibration;

[0039] In addition, both sides and the other end of the first connecting ring 9 are provided with connecting frames 10 facing the inner wall of the lower housing 1, and the connecting frame 10 is welded and fixed to the outer wall of the first connecting ring 9, and the connecting frame 10 is fixedly connected to the lower housing 1 by bolts. The first connecting ring 9 is connected by the connecting frame 10, so that the first connecting ring 9 can be suspended around the connecting rod 11, which is convenient for connecting the spring 12 and improving the shock absorption effect;

[0040] like Figure 2 As shown, the connecting frame 10 is located at the lower end of the first transmission ring 6. When the pump body 2, the motor 3 and the first transmission ring 6 are performing shock absorption, the first transmission ring 6 will move between the limiting ring 7 and the connecting frame 10. A connecting piece 13 is provided at the lower end of the connecting rod 11, and the connecting piece 13 is welded and fixed to the connecting rod 11.

[0041] In order to prevent the connecting piece 13 from sliding laterally to a large extent and to further improve the shock absorption effect, first shock absorbers 14 are disposed at the four corners of the lower end of the connecting piece 13. Figure 2 As shown, a pair of brackets 15 are horizontally arranged between the upper end of the first shock absorber 14 and the lower end of the connecting piece 13, and the bracket 15 is rotatably connected to one end of the first shock absorber 14 through a connecting shaft 16. Through the rotational connection of the connecting shaft 16, the pump body 2 and the motor 3 corresponding to the pump body 2 can pull the first shock absorber 14 whose lower end is connected by the connecting shaft 16 when the vibration amplitude is large. The shaking generated during the shaking will cause the connecting piece 13 to rotate in a circle around the connecting shaft 16, and will not cause the connection between the connecting piece 13 and the first shock absorber 14 to be broken. The resilience of the first shock absorber 14 will actively reset the connecting piece 13, and the resilience of the first shock absorber 14 will offset the vibration of the pump body 2 and the motor 3, thereby improving the shock absorption effect.

[0042] Example 2

[0043] In order to avoid large power consumption when the transmission block 17 is continuously output and the second shock absorber 19 is driven to rotate, a current sensor 4 is provided at the upper end of the pump body 2 corresponding to the motor 3, and a timing device 5 is provided on one side of the current sensor 4, and the timing device 5 and the current sensor 4 are respectively fixedly connected to the outer wall of the motor 3 by bolts, and the current sensor 4 and the timing device 5 are respectively electrically connected to the motor 3;

[0044] The timing device 5 can start timing after the current sensor 4 gives the transmission block 17 a start signal corresponding to the motor 3. The default setting time is twenty seconds. After twenty seconds, the timing device 5 will give the current sensor 4 an electrical signal, and the current sensor 4 will give the transmission block 17 a stop signal corresponding to the motor 3, so that the transmission block 17 stops outputting to the second shock absorber 19 and stops the second shock absorber 19 from rotating.

[0045] The working method of the multi-directional shock-absorbing double-suction pump to avoid loose installation includes the following steps:

[0046] Step 1: Start the motor 3 corresponding to the pump body 2. The motor 3 drives the impeller in the pump body 2 to rotate. The impeller rotates inside the pump body 2 to extract the position of the pipes connected to the two ends of the pump body 2;

[0047] Step 2: The current sensor 4 will start the corresponding motor 3 at one end of the transmission block 17 after detecting that the motor 3 is started. After the corresponding motor 3 at one end of the transmission block 17 is started, the transmission block 17 is driven to rotate through the transmission belt;

[0048] Step 3: The rotation of the transmission block 17 can drive the gear 22 to rotate through the lower housing 1, and the rotation of the gear 22 can drive the second transmission ring 18 to rotate through the meshing connection. The rotation of the second transmission ring 18 drives the outer ring of the slewing bearing 20 to rotate through the second shock absorber 19. The vibration generated by the connecting pipes at both ends of the pump body 2 when extracting liquid will be buffered and damped by the rotating second shock absorber 19;

[0049] Step 4: The vibration generated by the pump body 2 and the motor 3 when starting up is transmitted to the spring 12 by the connecting rod 11, and the resilience of the spring 12 can reduce the vibration of the pump body 2 and the motor 3;

[0050] Step 5. After the pump body 2 and the motor 3 generate a relatively large shaking, the connecting rod 11 will be transmitted to the connecting plate 13, and the large shaking of the connecting plate 13 will pull the first shock absorber 14 at the lower end. The resilience of the first shock absorber 14 after being pulled can further reduce the shock of the pump body 2 and the motor 3 at the upper end.

[0051] Working principle: The connection between the pump body 2 and the first transmission ring 6 is completed by passing the bolts through the pump body 2 and the first transmission ring 6. The pipelines at the liquid extraction position are respectively fitted with the extraction end and the drainage end of the pump body 2. After fitting, the bolts pass through and seal the pump body 2 and the pipelines at the liquid extraction position. The motor 3 corresponding to the pump body 2 is started and the impeller inside the pump body 2 is driven to rotate. The current sensor 4 will detect the start of the motor 3 corresponding to the pump body 2. After detecting the start, the current sensor 4 will start the motor 3 corresponding to one end of the transmission block 17. After the output shaft of the motor 3 rotates, it drives the transmission block 17 to rotate through the transmission belt. The rotation of the transmission block 17 drives the gear 22 to rotate through the lower shell 1, and the rotation of the gear 22 can drive the upper end The second transmission ring 18 rotates, and the rotation of the second transmission ring 18 drives the second shock absorber 19 to rotate when connected to the slewing bearing 20, so that the second shock absorber 19 rotates around the pump body 2 and the liquid extraction position pipeline, so as to buffer the vibration generated when the liquid is extracted. When the liquid is continuously extracted, the vibration generated by the motor 3 and the pump body 2 corresponding to the motor 3 will be transmitted to the spring 12 through the connecting rod 11. The resilience of the spring 12 can perform preliminary shock absorption. When the motor 3 and the pump body 2 corresponding to the motor 3 generate a large vibration amplitude, the connecting plate 13 will slide laterally. The lateral sliding of the connecting plate 13 will pull the first shock absorber 14 at the lower end, and the resilience of the first shock absorber 14 will provide further shock absorption requirements.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A multi-directional shock-absorbing double-suction pump for preventing loose installation, comprising a pump body (2), characterized in that: A protective frame (8) is provided on both sides of the pump body (2); a gear (22) is provided at the lower end of the interior of the protective frame (8); a second transmission ring (18) meshingly connected with the outside of the gear (22) is provided at the upper end of the interior of the protective frame (8); a slewing bearing (20) is provided at a circular position inside the second transmission ring (18) and is bolted to a position where the pump body (2) transmits liquid; and five second shock absorbers (19) are evenly distributed and welded around the outer ring of the slewing bearing (20) and the interior of the second transmission ring (18).

2. The multi-directional shock-absorbing double-suction pump for preventing loose installation according to claim 1, characterized in that: The gear (22) passes through the lower housing (1) at a circular position and is provided with a transmission block (17); a motor (3) is provided on one side of the outside of the transmission block (17) through a transmission belt transmission connection; and the motor (3) is provided at one end of the pump body (2).

3. The multi-directional shock-absorbing double-suction pump for preventing loose installation according to claim 1, characterized in that: A lower outer shell (1) is provided at the lower end of the pump body (2), a limiting ring (7) is welded to the upper end of the lower outer shell (1), and a first transmission ring (6) is connected to the lower ends of the pump body (2) and the motor (3) by bolts.

4. The multi-directional shock-absorbing double-suction pump for preventing loose installation according to claim 3, characterized in that: A connecting rod (11) is welded to the lower end of the first transmission ring (6), a first connecting ring (9) is arranged outside the connecting rod (11), and four welded springs (12) are evenly distributed around the first connecting ring (9) and the connecting rod (11).

5. The multi-directional shock-absorbing double-suction pump for preventing loose installation according to claim 4, characterized in that: A connecting plate (13) is welded to the lower end of the connecting rod (11), and first shock absorbers (14) are arranged at the four corners of the lower end of the connecting plate (13). A pair of brackets (15) are arranged transversely between the upper end of the first shock absorber (14) and the lower end of the connecting plate (13), and the bracket (15) is rotatably connected to one end of the first shock absorber (14) via a connecting shaft (16).

6. The multi-directional shock-absorbing double-suction pump for preventing loose installation according to claim 3, characterized in that: A current sensor (4) is provided at the upper end of the pump body (2) corresponding to the motor (3), a timing device (5) is provided on one side of the current sensor (4), and the current sensor (4) and the timing device (5) are electrically connected to the motor (3) respectively.

7. The multi-directional shock-absorbing double-suction pump for preventing loose installation according to claim 4, characterized in that: Connecting frames (10) are welded on both sides and the other end of the first connecting ring (9) towards the inner wall of the lower shell (1), and the connecting frame (10) is fixedly connected to the lower shell (1) by bolts.

8. The multi-directional shock-absorbing double-suction pump for preventing loose installation according to claim 7, characterized in that: The first transmission ring (6) is located between the limiting ring (7) and the connecting frame (10).

9. The multi-directional shock-absorbing double-suction pump for preventing loose installation according to claim 6, characterized in that: The timing device (5) and the current sensor (4) are connected to the motor (3) via bolts.

10. A working method of a multi-directional shock-absorbing double-suction pump for preventing installation loosening, which is realized based on the multi-directional shock-absorbing double-suction pump for preventing installation loosening according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Start the motor (3) corresponding to the pump body (2), and the impeller rotates inside the pump body (2) to extract the position of the pipeline connected to both ends of the pump body (2); Step 2: After the detection motor (3) is started, the current sensor (4) will give a start signal to one end of the transmission block (17) corresponding to the motor (3), and the transmission block (17) will be driven to rotate through the transmission belt; Step 3: The transmission block (17) rotates to drive the gear (22) to rotate through the lower housing (1), and the rotation of the gear (22) drives the second transmission ring (18) to rotate through meshing connection. The vibration generated by the connecting pipes at both ends of the pump body (2) when pumping liquid will be buffered and damped by the rotating second shock absorber (19); Step 4: The vibration of the pump body (2) and the motor (3) is transmitted to the spring (12) via the connecting rod (11); Step 5: After the pump body (2) and the motor (3) have a relatively large shaking, the connecting rod (11) will be transmitted to the connecting plate (13), and the resilience of the first shock absorber (14) after being pulled can further reduce the vibration of the upper end of the pump body (2) and the motor (3).

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