Novel high-performance variable-frequency centrifugal pump

Abstract

The utility model discloses a novel variable-frequency centrifugal pump with high performance, and relates to the field of centrifugal pumps. A high-performance novel variable-frequency centrifugal pump comprises a base, a positioning block is fixedly connected to the center of the bottom of an inner cavity of the base, a positioning groove is formed in the top of the positioning block, a fixing block is arranged in an inner cavity of the positioning groove, and clamping grooves are formed in the tops and the bottoms of the two sides of the fixing block correspondingly; the top of the fixing block penetrates to the top of the base and is fixedly connected with a mounting frame, and the top of the mounting frame is fixedly connected with a centrifugal pump body. According to the novel variable-frequency centrifugal pump with the high performance, when a centrifugal pump body needs to be assembled, firstly, a mounting frame is placed on a base, a fixing block below the mounting frame is inserted into a positioning groove in the base, then a stepping motor is started through an external controller, the stepping motor drives a screw rod to start to rotate through a bearing seat, and the screw rod is driven to rotate through the bearing seat; the screw rotates to drive the threaded block to move relatively.

Description

Technical Field

[0001] The utility model relates to the field of centrifugal pumps, in particular to a high-performance new variable frequency centrifugal pump. Background Art

[0002] A centrifugal pump is a pump that transports liquid by the centrifugal force generated by the rotation of the impeller. A centrifugal pump works by using the centrifugal motion of water caused by the rotation of the impeller. Before starting the pump, the pump casing and the suction pipe must be filled with water, and then the motor is started so that the pump shaft drives the impeller and water to rotate at high speed. The water undergoes centrifugal motion and is thrown to the outer edge of the impeller, flowing into the water pressure pipeline of the pump through the flow channel of the volute pump casing.

[0003] The existing high-performance new variable frequency centrifugal pump is not convenient to disassemble and assemble. When people need to maintain the high-performance new variable frequency centrifugal pump, they need to disassemble and assemble a large number of screws to complete the maintenance. This step is cumbersome and complicated, which increases the disassembly and assembly time and is inconvenient for people to use.

[0004] Therefore, it is necessary to provide a high-performance new variable frequency centrifugal pump to solve the above-mentioned technical problems. The disclosure of the information in this background technology section is only intended to increase the understanding of the overall background of the invention, and is not necessarily regarded as an admission or suggestion in any form that the information constitutes the prior art known to the general technicians in the field. Utility Model Content

[0005] The utility model provides a high-performance new variable frequency centrifugal pump, which solves the technical problem that the existing high-performance new variable frequency centrifugal pump is inconvenient to disassemble and assemble. When people need to maintain the high-performance new variable frequency centrifugal pump, a large number of screws need to be disassembled and assembled to complete the maintenance. This step is cumbersome and complicated, which increases the disassembly and assembly time and is inconvenient for people to use.

[0006] In order to solve the above technical problems, the utility model provides a high-performance new variable frequency centrifugal pump, including a base, a positioning block is fixedly connected at the center of the bottom of the inner cavity of the base, a positioning groove is opened on the top of the positioning block, and a fixing block is arranged in the inner cavity of the positioning groove, and a clamping groove is opened on the top and bottom of both sides of the fixing block, the top of the fixing block penetrates through the top of the base and is fixedly connected with a mounting bracket, the top of the mounting bracket is fixedly connected with a centrifugal pump body, and support plates are vertically fixedly connected on both sides of the inner cavity of the base and located on both sides of the positioning block, a stepping motor is fixedly connected on both sides of the inner cavity of the base, a screw is fixedly connected to the output end of the stepping motor, a threaded block is threadedly connected to the outer side of the screw surface, a moving block is fixedly connected to the top and bottom of the threaded block, a push rod is fixedly connected to the inner side of the moving block, and the inner side of the push rod penetrates through the inner side of the support plate and is fixedly connected with a clamping block.

[0007] Preferably, both sides of the top and the bottom of the inner cavity of the base are provided with sliding grooves, the inner cavity of the sliding groove is slidably connected with a slider, and the inner side of the slider is fixedly connected to the outer side of the moving block.

[0008] Preferably, a bearing seat is sleeved on the inner side of the screw rod, and the inner side of the bearing seat is fixedly connected to the outer side of the support plate.

[0009] Preferably, the bottoms of both sides of the base are fixedly connected with assembly blocks, and the inner cavities of the assembly blocks are provided with bolts.

[0010] Preferably, a shock-absorbing pad is provided at the connection between the bottom of the mounting frame and the top of the base, and the shock-absorbing pad is made of rubber material.

[0011] Compared with the related art, the high-performance new variable frequency centrifugal pump provided by the utility model has the following beneficial effects:

[0012] The utility model provides a high-performance new variable frequency centrifugal pump. When the centrifugal pump body needs to be assembled, the mounting frame is first placed on the base, and the fixing block below the mounting frame is inserted into the positioning groove in the base. Then the stepper motor is started through the external controller, and the stepper motor drives the screw to start rotating through the bearing seat, and the rotation of the screw drives the threaded block to move relatively.

[0013] The utility model provides a high-performance new variable frequency centrifugal pump, wherein the threaded block drives the moving block to move relatively, the moving block drives the sliding block to slide in the sliding groove, and the moving block drives the push rod to move relatively, the push rod drives the clamping block to move relatively, so that the clamping block is inserted into the clamping groove, and the fixed block is locked and fixed, and when disassembling, the reverse operation is performed according to the above steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a preferred embodiment of a high-performance novel variable frequency centrifugal pump provided by the utility model;

[0015] Figure 2 This is a cross-sectional view of the base structure of the utility model;

[0016] Figure 3 This is a cross-sectional view of the fixed block and positioning block structure of the utility model.

[0017] Numbers in the figure: 1. base; 2. positioning block; 3. positioning groove; 4. fixing block; 5. clamping slot; 6. mounting bracket; 7. centrifugal pump body; 8. support plate; 9. stepping motor; 10. screw; 11. threaded block; 12. moving block; 13. push rod; 14. clamping block; 15. slide groove; 16. slider; 17. assembly block; 18. bolt. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0021] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Embodiment 1:

[0024] See also Figure 1-3The utility model provides a technical solution: a high-performance new variable frequency centrifugal pump, including a base 1, a positioning block 2 is fixedly connected at the center of the bottom of the inner cavity of the base 1, a positioning groove 3 is opened on the top of the positioning block 2, a fixing block 4 is arranged in the inner cavity of the positioning groove 3, and a clamping groove 5 is opened on the top and bottom of both sides of the fixing block 4. The top of the fixing block 4 passes through the top of the base 1 and is fixedly connected with a mounting frame 6, and the top of the mounting frame 6 is fixedly connected with a centrifugal pump body 7. Support plates 8 are vertically fixedly connected on both sides of the inner cavity of the base 1 and located on both sides of the positioning block 2. A stepping motor 9 is fixedly connected on both sides of the inner cavity of the base 1, a screw 10 is fixedly connected to the output end of the stepping motor 9, and a threaded block 11 is threadedly connected to the outer side of the surface of the screw 10, and a moving block 12 is fixedly connected to the top and bottom of the threaded block 11. A push rod 13 is fixedly connected to the inner side of the moving block 12, and the inner side of the push rod 13 passes through the inner side of the support plate 8 and is fixedly connected with a clamping block 14.

[0025] In this embodiment, the sliding groove 15 and the sliding block 16 play a role in the smooth movement of the moving block 12 during use, and the bearing seat plays a role in the stable rotation of the screw rod 10 during use.

[0026] Embodiment 2:

[0027] See also Figure 1-3 As shown, on the basis of embodiment 1, the utility model provides a technical solution: slide grooves 15 are provided on both sides of the top and bottom of the inner cavity of the base 1, and the inner cavity of the slide groove 15 is slidably connected with a slider 16, the inner side of the slider 16 is fixedly connected to the outer side of the moving block 12, the inner side of the screw 10 is sleeved with a bearing seat, and the inner side of the bearing seat is fixedly connected to the outer side of the support plate 8, the bottom of both sides of the base 1 is fixedly connected with an assembly block 17, the inner cavity of the assembly block 17 is provided with a bolt 18, and a shock-absorbing pad is provided at the connection between the bottom of the mounting frame 6 and the top of the base 1, and the shock-absorbing pad is made of rubber material.

[0028] In this embodiment, the assembly block 17 and the bolt 18 facilitate the installation of the base 1 during use, and the anti-vibration pad provides a good anti-vibration effect for the mounting frame 6 during use.

[0029] The working principle of a high-performance new variable frequency centrifugal pump provided by the utility model is as follows:

[0030] The first step to implement the innovation point:

[0031] Step 1: When the centrifugal pump body 7 needs to be assembled, first place the mounting frame 6 on the base 1, and insert the fixing block 4 under the mounting frame 6 into the positioning groove 3 in the base 1;

[0032] Step 2: Then start the stepper motor 9 through the external controller, and the stepper motor 9 drives the screw rod 10 to start rotating through the bearing seat, and the rotation of the screw rod 10 drives the threaded block 11 to move relatively.

[0033] The second innovation point implementation steps:

[0034] Step 1: The threaded block 11 drives the moving block 12 to move relatively, and the moving block 12 drives the slider 16 to slide in the slide groove 15, and at the same time, the moving block 12 drives the ejector rod 13 to move relatively;

[0035] Step 2: The push rod 13 drives the clamping block 14 to move relatively, so that the clamping block 14 is inserted into the clamping slot 5, and the fixing block 4 is locked and fixed. When disassembling, just perform the above steps in reverse.

[0036] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in this field. The utility model is mainly used to protect mechanical devices, so the utility model no longer explains the control method and circuit connection in detail. The peripheral controller mentioned in the specification can control the electrical components mentioned in this article, and the peripheral controller is a conventional known device.

[0037] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes 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 apparatus.

[0038] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above are only preferred implementation methods of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A high-performance new variable frequency centrifugal pump, comprising a base (1), characterized in that: A positioning block (2) is fixedly connected at the center of the bottom of the inner cavity of the base (1); a positioning groove (3) is provided at the top of the positioning block (2); a fixing block (4) is provided in the inner cavity of the positioning groove (3); a clamping groove (5) is provided at the top and bottom of both sides of the fixing block (4); the top of the fixing block (4) passes through the top of the base (1) and is fixedly connected to a mounting frame (6); the top of the mounting frame (6) is fixedly connected to a centrifugal pump body (7); and the two sides of the inner cavity of the base (1) and located on both sides of the positioning block (2) are provided with a fixing block (5). A support plate (8) is vertically fixedly connected, and stepper motors (9) are fixedly connected to both sides of the inner cavity of the base (1), and a screw rod (10) is fixedly connected to the output end of the stepper motor (9), and a threaded block (11) is threadedly connected to the outer side of the surface of the screw rod (10), and a moving block (12) is fixedly connected to the top and bottom of the threaded block (11), and a push rod (13) is fixedly connected to the inner side of the moving block (12), and the inner side of the push rod (13) passes through the inner side of the support plate (8) and is fixedly connected to a clamping block (14).

2. A high-performance new variable frequency centrifugal pump according to claim 1, characterized in that: Both sides of the top and bottom of the inner cavity of the base (1) are provided with sliding grooves (15), the inner cavity of the sliding groove (15) is slidably connected with a slider (16), and the inner side of the slider (16) is fixedly connected to the outer side of the moving block (12).

3. A high-performance new variable frequency centrifugal pump according to claim 1, characterized in that: The inner side of the screw rod (10) is sleeved with a bearing seat, and the inner side of the bearing seat is fixedly connected to the outer side of the support plate (8).

4. A high-performance new variable frequency centrifugal pump according to claim 1, characterized in that: The bottoms of both sides of the base (1) are fixedly connected with assembly blocks (17), and the inner cavity of the assembly blocks (17) is provided with bolts (18).

5. A high-performance new variable frequency centrifugal pump according to claim 1, characterized in that: A shock-absorbing pad is provided at the connection between the bottom of the mounting frame (6) and the top of the base (1), and the shock-absorbing pad is made of rubber material.

Images