Separation transmission mechanism for axial flow pump based on spring energy storage type triggering mechanism

Abstract

The invention relates to the technical field of pump body equipment, in particular to a separation transmission mechanism for an axial flow pump based on a spring energy storage type triggering mechanism. The centrifugal pump comprises a base, a driving motor, a centrifugal pump body, a separable rotating shaft mechanism, a rotating shaft rod, a transmission rod, a clamping shell, a clamping protrusion, a sleeving shell, a meshing groove, a tension spring and a driving ring. A driving motor is erected on the base, the centrifugal pump body is slidably connected with the base, a separable rotating shaft mechanism is arranged at the output end of the driving motor and comprises a rotating shaft rod, a transmission rod, a clamping shell, a clamping protrusion, a sleeving shell, a meshing groove, a tension spring and a driving ring, and the rotating shaft rod is arranged at the output end of the driving motor. A clamping shell is arranged at the end of the rotating shaft rod, a clamping protrusion is arranged on the clamping shell, the transmission rod is arranged on a center shaft of the centrifugal pump body, a sleeving shell is arranged at the end of the transmission rod, and a meshing groove matched with the clamping protrusion is formed in the sleeving end of the sleeving shell.

Description

Technical Field

[0001] This invention relates to the field of pump equipment technology, and in particular to a disengagement transmission mechanism for an axial flow pump based on a spring-energy-storing trigger mechanism. Background Technology

[0002] A centrifugal pump is a mechanical device that uses a rotating impeller to generate centrifugal force to transport liquids. When the pump starts, the impeller rotates at high speed, driving the liquid outwards along the blades, thus creating a low-pressure zone at the center of the impeller and continuously drawing in new liquid. The high-pressure liquid that is thrown out is collected through the pump casing and guided to the outlet pipe, achieving continuous liquid transport. It has a simple structure and high efficiency, and is widely used in agricultural irrigation, industrial production, urban water supply, HVAC systems, and the chemical industry. It is a common device for transporting clean water, chemical liquids, or other fluids without solid particles.

[0003] However, existing equipment often encounters the following problems during use:

[0004] Traditional pumps and motors are typically directly connected via a rigid coupling and mounted on a common base. To separate the pump body for maintenance, the connecting pipeline must first be disconnected. Heavy tools (such as jacks and pry bars) are then used to laboriously move the heavy axial flow pump body or motor off the base to create enough space to disassemble the coupling. This entire process requires multiple people, is extremely labor-intensive, and can easily damage the equipment foundation and alignment accuracy. In emergencies (such as when the pump body jams, potentially causing the motor to burn out), it is impossible to quickly cut off the power; the only option is to rely on the electrical control system to disconnect the power, but the mechanical connection remains, and the risk is not completely eliminated. Summary of the Invention

[0005] The main objective of this invention is to provide a disengagement mechanism for axial flow pumps based on a spring-storage triggering mechanism. This effectively solves the problem mentioned in the background art where traditional pumps and motors are typically directly connected via rigid couplings and mounted on a common base. To separate the pump body for maintenance, the connecting pipeline must first be disconnected. Large tools (such as jacks and pry bars) are then used to laboriously move the heavy axial flow pump body or motor from the base to create sufficient space for disassembling the coupling. This entire process requires multiple people, is extremely labor-intensive, and can easily damage the equipment foundation and alignment accuracy. In emergency situations (such as pump body jamming potentially causing motor burnout), it is impossible to quickly cut off power; the only option is to rely on the electrical control system to disconnect the power, but the mechanical connection remains, and the risk is not completely eliminated.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A disengagement transmission mechanism for an axial flow pump based on a spring-storage triggering mechanism includes:

[0008] Base;

[0009] A drive motor is mounted on the base.

[0010] Centrifugal pump body, wherein the centrifugal pump body is slidably connected to the base;

[0011] A detachable rotating shaft mechanism is provided at the output end of the drive motor. The detachable rotating shaft mechanism includes a rotating shaft rod, a transmission rod, a snap-fit ​​housing, a snap-fit ​​protrusion, a sleeve housing, a meshing groove, a tension spring, and a drive ring. The rotating shaft rod is located at the output end of the drive motor. The snap-fit ​​housing is located at the end of the rotating shaft rod, and the snap-fit ​​housing has a snap-fit ​​protrusion. The transmission rod is located on the central shaft of the centrifugal pump body. The sleeve housing is located at the end of the transmission rod. The sleeve end of the sleeve housing has a meshing groove that matches the snap-fit ​​protrusion. The drive ring is fixedly provided on one side of the sleeve housing. The tension spring is sleeved on the transmission rod.

[0012] include:

[0013] A shaft wheel, one end of the transmission rod is connected to the shaft wheel at the end of the centrifugal pump body;

[0014] The annular groove is provided on the side wheel surface of the drive ring;

[0015] A tie rod, one end of which is engaged with the annular groove;

[0016] The tie rod has a central axis at its middle section;

[0017] A support frame, wherein the central shaft is mounted on the top of the support frame;

[0018] A drive mechanism is mounted on the base, and the output end of the drive mechanism acts on the other end of the tension rod.

[0019] The drive mechanism includes:

[0020] A fixing frame is fixedly mounted on the base;

[0021] A drive gear, which is rotatably disposed on one side of the fixed frame;

[0022] A rack, which meshes with the drive gear;

[0023] A sliding plate, which is fixedly connected to the rack, is slidably disposed at the top of the fixed frame;

[0024] A force-applying plate, wherein the force-applying plate is slidably disposed on the top surface of the sliding plate;

[0025] A guide rod, the transverse shaft of which passes through the force-applying plate and is clearance-fitted with it;

[0026] A socket is fixedly sleeved on one end of the guide rod, and the socket is fixedly connected to the sliding plate;

[0027] A drive spring is sleeved on the body of the guide rod and is located between the sleeve and the force-applying plate.

[0028] Its characteristic is that it further includes:

[0029] A baffle plate is disposed on the fixed frame and is located on the side away from the drive gear;

[0030] A movable rod is horizontally disposed on the baffle and is located directly above the force-applying plate;

[0031] A strip-shaped blocking element, which is movably sleeved onto the body of the movable rod;

[0032] The bottom surface of the strip-shaped blocking member is provided with the blocking protrusion;

[0033] A force-applying rod, one end of which is connected to the drive end of the tension rod, and the other end of which is connected to the force-applying plate.

[0034] The baffle and the fixing frame are fixedly connected.

[0035] The sliding plate is slidably connected to the fixed frame through a sliding groove.

[0036] The drive ring is sleeved on the shaft of the transmission rod.

[0037] One end of the tension spring is connected to the end shaft wheel of the centrifugal pump body, and the other end of the tension spring is connected to the drive ring or the sleeve shell.

[0038] One end of the tension rod is a U-shaped end, which is inserted into the annular groove of the drive ring.

[0039] Compared with existing technologies, the advantages of this invention are as follows: This invention solves the problem of difficult separation by using a spring-energy-storing trigger mechanism. Its core operation is as follows: When separation is required, the drive mechanism pushes the sliding plate to compress the drive spring, storing energy. Once the energy exceeds the limit of the blocking protrusion, the spring force is released instantaneously, pulling one end of the tension rod sharply through the force-applying rod. Utilizing the lever principle, the U-shaped head at the other end of the tension rod violently pushes the drive ring connected to the pump shaft, overcoming the force of the tension spring and causing the sleeve housing and the snap-fit ​​housing at the motor end to disengage instantly, thus cutting off power transmission within milliseconds. Afterwards, thanks to the sliding connection between the pump body and the base, the pump body can be easily removed for maintenance, solving the problems of difficult, time-consuming, and labor-intensive separation methods in traditional approaches. Attached Figure Description

[0040] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the detailed embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0041] Figure 1 This is a schematic diagram of the overall shape of the invention.

[0042] Figure 2 This is a partial structural diagram of the present invention.

[0043] Figure 3 for Figure 2 A magnified view of A in the middle.

[0044] Figure 4 This is a schematic diagram of the driving mechanism of the present invention.

[0045] Figure 5 This is a schematic diagram of the snap-fit ​​structure of the present invention.

[0046] The following are the labeling elements in the diagram: 1. Base; 2. Drive motor; 3. Centrifugal pump body; 4. Separable rotating shaft mechanism; 41. Rotating shaft rod; 42. Transmission rod; 43. Snap-fit ​​housing; 44. Snap-fit ​​protrusion; 45. Sleeve housing; 46. Engaging groove; 47. Tension spring; 48. Drive ring; 5. Shaft wheel; 6. Annular groove; 7. Tension rod; 8. Central shaft; 9. Support frame; 10. Drive mechanism; 101. Fixed frame; 102. Drive gear; 103. Rack; 104. Sliding plate; 105. Force application plate; 106. Guide rod; 107. Sleeve; 108. Drive spring; 11. Baffle; 12. Movable rod; 13. Strip-shaped blocking component; 14. Blocking protrusion; 15. Force application rod. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] like Figure 1-5 As shown, the present invention provides a disengagement transmission mechanism for an axial flow pump based on a spring-storage trigger mechanism. The disengagement transmission mechanism for an axial flow pump based on a spring-storage trigger mechanism includes a base 1, a drive motor 2, a centrifugal pump body 3, a separable rotating shaft mechanism 4, a rotating shaft rod 41, a transmission rod 42, a snap-fit ​​shell 43, a snap-fit ​​protrusion 44, a sleeve shell 45, a meshing groove 46, a tension spring 47, and a drive ring 48.

[0050] The base 1 serves as the supporting foundation for the entire system, providing stability and support for the installation of other components. The drive motor 2 is mounted on the base 1, and the centrifugal pump body 3 is slidably connected to the base 1. This sliding connection design between the centrifugal pump body 3 and the base 1 allows for quick disconnection from the drive motor 2 when needed, and also simplifies the movement of the pump body. The sliding connection enables rapid disassembly and replacement of the pump body, saving maintenance time.

[0051] In this invention, the output end of the drive motor 2 is provided with a separable rotating shaft mechanism 4. The separable rotating shaft mechanism 4 includes a rotating shaft rod 41, a transmission rod 42, a snap-fit ​​shell 43, a snap-fit ​​protrusion 44, a sleeve shell 45, a meshing groove 46, a tension spring 47, and a drive ring 48. The rotating shaft rod 41 is located at the output end of the drive motor 2. The end of the rotating shaft rod 41 is provided with a snap-fit ​​shell 43, and the snap-fit ​​shell 43 is provided with a snap-fit ​​protrusion 44. The transmission rod 42 is located on the central shaft of the centrifugal pump body 3. The end of the transmission rod 42 is provided with a sleeve shell 45. The sleeve end of the sleeve shell 45 is provided with a meshing groove 46 that matches the snap-fit ​​protrusion 44. A drive ring 48 is fixedly provided on one side of the sleeve shell 45. The tension spring 47 is sleeved on the transmission rod 42. The drive ring 48 is sleeved on the rod body of the transmission rod 42. One end of the tension spring 47 is connected to the end shaft wheel 5 of the centrifugal pump body 3, and the other end of the tension spring 47 is connected to the drive ring 48 or the sleeve shell 45. The spring plays an energy storage role, ensuring that a huge thrust can be released when the conditions are met, triggering the separation of the drive motor 2 from the pump body.

[0052] In this invention, one end of the transmission rod 42 is connected to the shaft wheel 5 at the end of the centrifugal pump body 3. The side wheel surface of the drive ring 48 is provided with an annular groove 6. One end of the tension rod 7 is engaged with the annular groove 6. One end of the tension rod 7 is a U-shaped end, which is engaged in the annular groove 6 of the drive ring 48. Through the engagement of the U-shaped end of the tension rod 7 with the annular groove 6 of the drive ring 48, mechanical force is generated to push other components, completing the spring energy storage trigger. A central shaft 8 is provided in the middle of the tension rod 7. The central shaft 8 is installed on the top of the support frame 9. The drive mechanism 10 is set on the base 1. The output end of the drive mechanism 10 acts on the other end of the tension rod 7.

[0053] The present invention includes a drive mechanism 10 comprising: a fixed frame 101 fixedly mounted on a base 1; a drive gear 102 rotatably mounted on one side of the fixed frame 101; a rack 103 meshing with the drive gear 102; the drive gear 102, through meshing with the rack 103, drives a sliding plate 104 to slide on the fixed frame 101, and the movement of the sliding plate 104 further drives the sliding of the guide rod 106 and the force-applying plate 105. The sliding plate 104 is fixedly connected to the rack 103, and is slidably mounted on the top of the fixed frame 101. The sliding plate 104 is slidably connected to the fixed frame 101 through a groove, and the force-applying plate 105 is slidably mounted on the top surface of the sliding plate 104. The design of the force-applying plate 105 effectively transmits and accumulates force, while the blocking device ensures that it does not disengage prematurely before the spring energy is released. The sliding of the force-applying plate 105 is temporarily stopped by the blocking mechanism until the spring energy is strong enough to break through the block and unlock the drive system.

[0054] In this invention, the guide rod 106 extends laterally through the force-applying plate 105 and is clearance-fitted to it. A sleeve 107 is fixedly sleeved on one end of the guide rod 106 and is fixedly connected to the sliding plate 104. A drive spring 108 is sleeved on the body of the guide rod 106 and is located between the sleeve 107 and the force-applying plate 105. This drive spring serves to store and release energy. As the sliding plate 104 continues to slide, the drive spring 108 is continuously stretched and accumulates potential energy. Upon reaching its limit, the accumulated energy is rapidly released through the spring's reaction force, triggering the disengagement mechanism.

[0055] In this invention, a baffle 11 is mounted on a fixed frame 101, located on the side away from the drive gear 102. The baffle 11 is fixedly connected to the fixed frame 101. A movable rod 12 is laterally mounted on the baffle 11 and positioned directly above the force-applying plate 105. The movable rod 12 and the force-applying rod 15 are designed to transmit and amplify the force of the tension rod 7, ensuring that the separation of the sleeve shell 45 and the snap-fit ​​shell 43 can be achieved. The connection and cooperation between the force-applying rod 15 and the tension rod 7 ultimately enables the rapid separation of the connection between the pump body and the motor. A strip-shaped blocking member 13 is movably sleeved on the body of the movable rod 12, and the bottom surface of the strip-shaped blocking member 13 is provided with a blocking protrusion 14. The blocking protrusion 14 ensures that the force-applying plate 105 will not slip prematurely during the energy storage process of the tension spring 47. The blocking mechanism is designed to effectively control the timing of spring release, avoiding premature release of potential energy that would prevent the release mechanism from being triggered. One end of the force rod 15 is connected to the drive end of the tension rod 7, and the other end of the force rod 15 is connected to the force plate 105.

[0056] It should be noted that the axial flow pump disengagement transmission mechanism based on a spring-storage triggering mechanism designed in this invention operates as follows: During use, the drive gear 102 begins to rotate. The drive gear 102 drives the rack 103 to move linearly, and the rack 103 pushes the fixed sliding plate 104 to slide backward toward the drive motor 2 on the fixed frame 101. The sliding plate 104 drives the guide rod 106 to slide together via the sleeve 107, and the guide rod 106 drives the force-applying plate 105 at its front end to move together. During this sliding process, the blocking protrusion 14 on the bottom surface of the strip-shaped blocking member 13 hooks onto the force-applying plate 105, and the drive spring 108 of the guide rod 106 is stretched. The force-applying plate 105 is blocked and cannot continue to slide. However, the sliding plate 104 continues to slide under the drive. This causes the drive spring 108 to continue to be stretched. The drive spring 108 generates elastic potential energy, and the accumulated elastic potential energy becomes increasingly larger. When the drive spring 108 is stretched to its limit, the resulting backward thrust is enormous, sufficient to overcome the friction and mechanical interference of the blocking protrusion 14. This enormous thrust forces the strip-shaped blocking member 13 to rotate or shift slightly on the movable rod 12, causing the force-applying plate 105 to slip instantly, releasing the mechanical interlock. The potential energy stored in the drive spring 108 is then violently released, and the force-applying rod 15 on one side of the force-applying plate 105 pulls the drive end of the tension rod 7 at high speed. The tension rod 7, with its central axis 8 as the fulcrum, forms a lever. Its drive end is pulled, while the U-shaped end at the other end pushes forward. The U-shaped end of the tension rod 7 engages in the annular groove 6 of the drive ring 48, and the tension rod 7 pushes the drive ring 48 towards the centrifugal pump, thereby causing the entire sleeve housing 45 to move towards the centrifugal pump body 3. The sleeve housing 45 slides on the shaft of the transmission rod 42. The drive ring 48 compresses the tension spring 47, causing its other end's engagement groove 46 to disengage from the engagement protrusion 44 of the snap-fit ​​housing 43. At this point, the power connection between the drive motor 2 and the centrifugal pump body 3 is completely severed. After power is cut off, since the centrifugal pump body 3 and the base 1 are slidably connected, maintenance personnel can easily slide it out from under the drive motor 2 for inspection or replacement without any operation on the heavy motor. After maintenance, the pump body is slid back to its original position, the power to the drive mechanism 10 is released, and under the action of the return springs 47 and the drive spring 108, all components automatically return to their original positions, and the sleeve housing 45 re-engages with the snap-fit ​​housing 43, thus resuming operation.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disengagement transmission mechanism for an axial flow pump based on a spring-energy-storing trigger mechanism, characterized in that, include: Base (1); A drive motor (2) is mounted on the base (1); Centrifugal pump body (3), the centrifugal pump body (3) is slidably connected to the base (1); A separable rotating shaft mechanism (4) is provided at the output end of the drive motor (2). The separable rotating shaft mechanism (4) includes a rotating shaft rod (41), a transmission rod (42), a snap-fit ​​housing (43), a snap-fit ​​protrusion (44), a sleeve housing (45), a meshing groove (46), a tension spring (47), and a drive ring (48). The rotating shaft rod (41) is located at the output end of the drive motor (2), and the snap-fit ​​housing (48) is provided at the end of the rotating shaft rod (41). 3) The snap-fit ​​housing (43) is provided with snap-fit ​​protrusions (44), the transmission rod (42) is located on the central axis of the centrifugal pump body (3), the end of the transmission rod (42) is provided with the sleeve housing (45), the sleeve end of the sleeve housing (45) is provided with the meshing groove (46) that is adapted to the snap-fit ​​protrusions (44), the drive ring (48) is fixedly provided on one side of the sleeve housing (45), and the tension spring (47) is sleeved on the transmission rod (42).

2. The disengagement transmission mechanism for an axial flow pump based on a spring-storage triggering mechanism according to claim 1, characterized in that, include: A shaft wheel (5) is connected to one end of the transmission rod (42) at the end of the centrifugal pump body (3); The annular groove (6) is provided on the side wheel surface of the drive ring (48); A tie rod (7), one end of which is engaged with the annular groove (6); The central shaft (8) is provided in the middle of the tension rod (7); A support frame (9), wherein the central shaft (8) is mounted on the top of the support frame (9); A drive mechanism (10) is disposed on the base (1), and the output end of the drive mechanism (10) acts on the other end of the tension rod (7).

3. The disengagement transmission mechanism for an axial flow pump based on a spring-storage triggering mechanism according to claim 1, characterized in that, The drive mechanism (10) includes: A fixing frame (101) is fixedly mounted on the base (1); A drive gear (102) is rotatably disposed on one side of the fixed frame (101); A rack (103) meshes with the drive gear (102); A sliding plate (104) is fixedly connected to the rack (103), and the sliding plate (104) is slidably disposed on the top of the fixing frame (101); A force-applying plate (105) is slidably disposed on the top surface of the sliding plate (104); Guide rod (106), the horizontal rod body of the guide rod (106) passes through the force-applying plate (105) and is clearance-fitted with it; A socket (107) is fixedly sleeved on one end of the guide rod (106), and the socket (107) is fixedly connected to the sliding plate (104); A drive spring (108) is sleeved on the body of the guide rod (106) and the drive spring (108) is located between the sleeve (107) and the force plate (105).

4. The disengagement transmission mechanism for an axial flow pump based on a spring-storage triggering mechanism according to claim 3, characterized in that, Also includes: A baffle (11) is disposed on the fixing frame (101) and the baffle (11) is located on the side away from the drive gear (102); Movable rod (12), which is horizontally arranged on the baffle (11) and is located directly above the force-applying plate (105); A strip-shaped blocking member (13) is movably sleeved on the body of the movable rod (12); The bottom surface of the strip-shaped blocking member (13) is provided with the blocking protrusion (14); A force-applying rod (15) is provided, one end of which is connected to the drive end of the tension rod (7), and the other end of which is connected to the force-applying plate (105).

5. A disengagement transmission mechanism for an axial flow pump based on a spring-storage triggering mechanism according to claim 4, characterized in that, The baffle (11) and the fixing frame (101) are fixedly connected.

6. A disengagement transmission mechanism for an axial flow pump based on a spring-storage triggering mechanism according to claim 3, characterized in that, The sliding plate (104) is slidably connected to the fixed frame (101) through a sliding groove.

7. A disengagement transmission mechanism for an axial flow pump based on a spring-storage triggering mechanism according to claim 1, characterized in that, The drive ring (48) is sleeved on the shaft of the transmission rod (42).

8. A disengagement transmission mechanism for an axial flow pump based on a spring-storage triggering mechanism according to claim 1, characterized in that, One end of the tension spring (47) is connected to the end shaft wheel (5) of the centrifugal pump body (3), and the other end of the tension spring (47) is connected to the drive ring (48) or the sleeve shell (45).

9. A disengagement transmission mechanism for an axial flow pump based on a spring-storage triggering mechanism according to claim 2, characterized in that, One end of the tension rod (7) is a U-shaped end, which is inserted into the annular groove (6) of the drive ring (48).

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