Stamping type multi-stage centrifugal pump

Abstract

The utility model relates to the technical field of ram-type multi-stage centrifugal pumps, and discloses a ram-type multi-stage centrifugal pump which comprises a pump body, a motor is connected to the left side of the pump body, a main shaft is connected to the interior of the pump body in a penetrating mode and connected with the output end of the motor, and a control rod is connected to the interior of the main shaft in a penetrating mode and connected with the output end of the motor. Scale marks are arranged on the right side of the exterior of the control rod, first pin shafts are connected to the two sides of the main shaft and the control rod in a penetrating mode, water impeller mechanisms are connected to the exterior of the main shaft at equal intervals and comprise discs, the discs are fixedly connected with the main shaft, second pin shafts are connected to the right sides of the discs at equal intervals, and impeller blades are slidably connected to the exteriors of the second pin shafts. According to the ram-type multi-stage centrifugal pump, through cooperation of the round arms and the curve grooves, the supporting force on the impeller blades is increased, damage caused by breakage of the impeller blades in the using process is avoided, and meanwhile a worker can visually observe the angle change value of the impeller blades according to the additionally-arranged scale marks.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping type multi-stage centrifugal pumps, in particular to a stamping type multi-stage centrifugal pump. Background Art

[0002] Ram type multistage centrifugal pump is a centrifugal pump that can generate high pressure. It is usually composed of multiple impellers, each impeller can increase the pressure of the fluid. This pump is suitable for industrial and agricultural applications that require high pressure, such as water supply systems, fire protection systems, etc.

[0003] When the head of a stamped multi-stage centrifugal pump needs to be changed, it is usually necessary to disassemble the pump body, remove the impeller, and replace it with a small impeller. In traditional technology, the angle of the blade is controlled by using a control arm, but the blade will generate a lot of pressure when rotating. If the control arm is simply used to control and support the blade angle, it may cause the connecting arm to break, thereby reducing the damage to the impeller and shortening the service life of the device. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a stamped multi-stage centrifugal pump to solve the above-mentioned technical problem that the angle of the blades is controlled by using a control arm, and a large amount of pressure is generated when the blades rotate. Simply relying on the control arm to control and support the blade angle may cause the connecting arm to break, thereby increasing the damage to the impeller and reducing the service life of the device.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a stamping multi-stage centrifugal pump, comprising:

[0008] The pump body is connected to a motor on the left side of the pump body, a main shaft is connected through the inside of the pump body, the main shaft is connected to the output end of the motor, a control rod is connected through the inside of the main shaft, a scale line is opened on the right side of the outside of the control rod, a first pin is connected through both sides of the main shaft and the control rod, and a water impeller mechanism is connected to the outside of the main shaft at equal intervals.

[0009] The water impeller mechanism includes a disc, which is fixedly connected to the main shaft, and a second pin is evenly spaced on the right side of the disc. The outside of the second pin is slidably connected to an impeller blade, and a curved groove is provided on the right side of the impeller blade. A circular arm is slidably connected to the inside of the curved groove, and a star wheel is fixedly connected to the right side of the circular arm. The star wheel is connected to a control rod, and curved grooves are evenly spaced on the right side of the disc, and the curved groove is slidably connected to the left side of the circular arm.

[0010] Preferably, slots are provided at equal intervals on the outside of the main shaft, and the slots facilitate connection between the star wheel and the control rod.

[0011] Preferably, connecting blocks are connected at equal intervals inside the star wheel, the connecting blocks are fixedly connected to the control rod, and the connecting blocks are slidably connected to the slots, and the connecting blocks can support and fix the star wheel.

[0012] Preferably, spherical bearings are sleeved on both sides of the main shaft, and the spherical bearings are connected to the pump body through the spherical bearings to support the main shaft.

[0013] Preferably, the outside of the main shaft and the control rod are both provided with a pin shaft groove, the inside of the pin shaft groove is slidably connected to the outside of the first pin shaft, and the pin shaft groove facilitates the installation of the first pin shaft.

[0014] Preferably, the left side of the control rod is connected to the left side of the main shaft through a seat bearing, and the right side of the control rod is connected to a cross twist wheel, which makes it convenient for staff to drive the control rod to rotate.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a stamping multi-stage centrifugal pump with the following features:

[0017] Beneficial effects:

[0018] 1. When the head of the stamping multi-stage centrifugal pump needs to be changed, the water impeller mechanism is controlled by the control lever. By rotating it, the rotation angle of the impeller blade can be changed. At the same time, the support force of the impeller blade is increased through the cooperation of the circular arm and the curved groove, avoiding damage caused by the impeller blade breaking during use. At the same time, the added scale line allows the staff to intuitively observe the numerical value of the impeller blade angle change. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the utility model;

[0020] Figure 2 This is a front view of the main shaft of the utility model;

[0021] Figure 3 This is a front view of the water impeller mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the right side of the water impeller mechanism of the utility model;

[0023] Figure 5 This is a schematic diagram of the left side of the circular arm of the utility model;

[0024] Figure 6 This is a schematic diagram of the right side of the disc of the utility model.

[0025] In the figure: 1. Pump body; 2. Motor; 3. Main shaft; 31. Slot; 32. Spherical bearing; 4. Control lever; 5. Scale line; 6. First pin; 7. Water impeller mechanism; 71. Disc; 72. Second pin; 73. Impeller blade; 74. Curved groove; 75. Circular arm; 76. Star wheel; 761. Connecting block; 77. Curved groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The utility model provides a technical solution, a stamping multi-stage centrifugal pump, comprising:

[0028] See also Figure 1 and Figure 2 as well as Figure 3 , pump body 1, the left side of the pump body 1 is connected to the motor 2, the motor 2 can drive the main shaft 3, the inside of the pump body 1 is connected with the main shaft 3, the main shaft 3 can drive the water impeller mechanism 7 to rotate and supply water, and spherical bearings 32 are sleeved on both sides of the outside of the main shaft 3.

[0029] The spherical bearing 32 is connected to the pump body 1, and the spherical bearing 32 can support the main shaft 3. Slots 31 are evenly spaced on the outside of the main shaft 3. The slots 31 facilitate the connection between the star wheel 76 and the control rod 4. The main shaft 3 is connected to the output end of the motor 2. The control rod 4 is connected to the inside of the main shaft 3, and the control rod 4 can control the rotation angle of the impeller mechanism 7.

[0030] The outside of the main shaft 3 and the control rod 4 are both provided with a pin shaft groove, the inside of the pin shaft groove is slidably connected to the outside of the first pin shaft 6, the pin shaft groove facilitates the installation of the first pin shaft 6, the left side of the control rod 4 is connected to the left side of the inside of the main shaft 3 through a seat bearing, and the right side of the control rod 4 is connected to a cross twist wheel, which makes it convenient for the staff to drive the control rod 4 to rotate.

[0031] A scale line 5 is provided on the right side of the outside of the control lever 4. The scale line 5 allows the staff to observe how many degrees the control lever 4 has rotated. A first pin 6 is connected to both sides of the main shaft 3 and the control lever 4. The first pin 6 can limit the control lever 4 and the main shaft 3. This scheme is a structural improvement of the non-electronic component part based on the existing stamping multi-stage centrifugal pump. The pump body 1, motor 2, main shaft 3, control lever 4, scale line 5 and first pin 6 are the common stamping multi-stage centrifugal pump products that have been promoted in the existing technology. The outside of the main shaft 3 is evenly connected with a water impeller mechanism 7.

[0032] See also Figure 4 and Figure 5 as well as Figure 6 The water impeller mechanism 7 includes a disc 71, which can support the impeller blade 73. The disc 71 is fixedly connected to the main shaft 3. Second pins 72 are evenly spaced on the right side of the disc 71, and the second pins 72 can connect the impeller blade 73.

[0033] The outside of the second pin shaft 72 is slidably connected to the impeller blade 73, which can divert water. A curved groove 74 is provided on the right side of the impeller blade 73, which can enable the circular arm 75 to transmit power to the impeller blade 73. The inside of the curved groove 74 is slidably connected to the circular arm 75, and the right side of the circular arm 75 is fixedly connected to the star wheel 76.

[0034] The inside of the star wheel 76 is connected with connecting blocks 761 at equal intervals. The connecting blocks 761 are fixedly connected to the control rod 4 and are slidably connected to the slot 31. The connecting blocks 761 can support and fix the star wheel 76. The star wheel 76 is connected to the control rod 4. Curved grooves 77 are evenly spaced on the right side of the disc 71. The curved grooves 77 can support and guide the circular arm 75. The curved grooves 77 are slidably connected to the left side of the circular arm 75.

[0035] This solution starts the motor 2 to drive the main shaft 3 to rotate, and then drives the water impeller mechanism 7 to rotate to complete the pumping of the water source;

[0036] When the rotation angle of the impeller 73 needs to be changed, the first pin 6 is first pulled out to release the limit on the main shaft 3 and the control rod 4. The star wheel 76 is rotated by rotating the control rod 4. Then, the rotation angle of the impeller 73 is changed by the cooperation between the circular arm 75 and the curved groove 77. The first pin 6 is then reinserted to fix the main shaft 3 and the control rod 4. At the same time, when the control rod 4 is rotated, the head can be changed according to the observed scale line 5.

[0037] When the lift needs to be changed, the added water impeller mechanism 7 is controlled by the control lever 4 and rotated to change the rotation angle of the impeller blade 73. At the same time, the cooperation of the circular arm 75 and the curved groove 77 increases the supporting force of the impeller blade 73 to avoid damage caused by breakage of the impeller blade 73 during use. At the same time, the staff can intuitively observe the numerical value of the angle change of the impeller blade 73 according to the added scale line 5.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stamping multistage centrifugal pump, characterized in that: include: A pump body (1), wherein the left side of the pump body (1) is connected to a motor (2), a main shaft (3) is connected through the inside of the pump body (1), the main shaft (3) is connected to the output end of the motor (2), a control rod (4) is connected through the inside of the main shaft (3), a scale line (5) is provided on the right side of the outside of the control rod (4), a first pin shaft (6) is connected through both sides of the main shaft (3) and the control rod (4), and a water impeller mechanism (7) is connected to the outside of the main shaft (3) at equal intervals; The water impeller mechanism (7) comprises a disc (71), the disc (71) is fixedly connected to the main shaft (3), a second pin shaft (72) is evenly spaced on the right side of the disc (71), an impeller blade (73) is slidably connected to the outside of the second pin shaft (72), a curved groove (74) is provided on the right side of the impeller blade (73), a circular arm (75) is slidably connected to the inside of the curved groove (74), a star wheel (76) is fixedly connected to the right side of the circular arm (75), and the star wheel (76) is connected to the control rod (4), and curved grooves (77) are evenly spaced on the right side of the disc (71), and the curved groove (77) is slidably connected to the left side of the circular arm (75).

2. A stamping multi-stage centrifugal pump according to claim 1, characterized in that: The outside of the main shaft (3) is provided with slots (31) at equal intervals.

3. A stamping multi-stage centrifugal pump according to claim 2, characterized in that: Connecting blocks (761) are connected at equal intervals inside the star wheel (76); the connecting blocks (761) are fixedly connected to the control rod (4); and the connecting blocks (761) are slidably connected to the slot (31).

4. A stamping multi-stage centrifugal pump according to claim 1, characterized in that: Spherical bearings (32) are sleeved on both sides of the exterior of the main shaft (3), and the spherical bearings (32) are connected to the pump body (1) through-hole.

5. The stamping multi-stage centrifugal pump according to claim 1, characterized in that: The outsides of the main shaft (3) and the control rod (4) are both provided with pin shaft grooves, and the insides of the pin shaft grooves are slidably connected to the outside of the first pin shaft (6).

6. The stamping multi-stage centrifugal pump according to claim 1, characterized in that: The left side of the control rod (4) is connected to the left side inside the main shaft (3) via a seat bearing, and the right side of the control rod (4) is connected to a cross torsion wheel.

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