Chemical conveying pump with crushing function

Abstract

The chemical delivery pump with the smashing function comprises a motor and a pump body located on the outer side of an output shaft of the motor, a connecting support used for fixedly connecting the motor and the pump body into a whole is arranged between the motor and the pump body, a rotating shaft supported on the pump body through a sealing supporting device is arranged in the connecting support, and the output shaft of the motor is fixedly connected with the left end of the rotating shaft. The right end of the rotating shaft extends into the pump body and is fixedly connected with a water outlet impeller and a particulate matter smashing device which are located in the pump body in a positioning mode, and particulate matter in liquid entering from an inlet of the pump body is smashed through the particulate matter smashing device rotating at a high speed under driving of the motor and then sent out through an outlet of the pump body. According to the chemical delivery pump, the structure of the chemical delivery pump is optimized, particulate matter in liquid entering from the inlet of the pump body is efficiently smashed and then sent out through the outlet of the pump body, the problems that in a traditional chemical delivery pump, the particulate matter is prone to damaging an internal sealing structure of the chemical delivery pump, and abrasion is large are solved, the service life is prolonged, and cost is reduced. And the maintenance frequency and cost are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical delivery pumps, and in particular relates to a chemical delivery pump with a crushing function. Background Art

[0002] At present, chemical pumps are needed in cleaning systems that transport corrosive liquids, such as food processing, medicine and health, sewage treatment, electroplating, bleaching and dyeing, fine chemicals, environmental protection engineering and other industries, or other equipment supporting. The working principle is that the motor transmits power to the impeller through the shaft to drive the impeller to rotate, thereby causing the liquid in the sealed pipe to flow, so that the liquid flows in from the liquid inlet and flows out from the liquid outlet to achieve the purpose of transporting the liquid. However, when transporting liquid containing particulate matter, the particulate matter in the liquid can easily damage the internal sealing structure of the chemical delivery pump, thereby causing damage to the pump and causing greater wear of the pump. The above problems will greatly reduce the service life of the pump, so it is necessary to make improvements. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a chemical delivery pump with a crushing function. By optimizing the structure of the chemical delivery pump and arranging a particle crushing device located inside the pump body on the rotating shaft, the particles in the liquid entering the inlet of the pump body can be efficiently crushed and then sent out through the outlet of the pump body, which solves the problem that the particles in the traditional chemical delivery pump are easy to damage the internal sealing structure of the chemical delivery pump and cause large wear, thereby improving the service life of the chemical delivery pump and reducing the frequency and cost of repair and maintenance. The utility model has a simple structure, is convenient and quick to disassemble and assemble, and has a stable and reliable sealing structure with good effect, and has extremely high use value.

[0004] The technical solution adopted by the utility model is as follows: a chemical delivery pump with a crushing function, comprising a motor and a pump body located outside the motor output shaft, a connecting bracket for fixing the motor and the pump body as a whole is provided between the motor and the pump body, a rotating shaft supported on the pump body by a sealing support device is provided in the connecting bracket, the motor output shaft is fixedly connected to the left end of the rotating shaft, and the right end of the rotating shaft extends into the pump body to be positioned and fixedly connected with a water outlet impeller and a particle crushing device located in the pump body, and the particle crushing device, driven by the motor, crushes the particles in the liquid entering from the inlet of the pump body and sends them out through the outlet of the pump body.

[0005] Among them, the left end of the rotating shaft is a hollow structure, and a long groove connected to the interior of the rotating shaft is formed on the outer wall of the left end of the rotating shaft. The motor output shaft is inserted into the hole at the left end of the rotating shaft, and the motor output shaft is clamped and fixed to the left end of the rotating shaft by a shaft clamp provided on the rotating shaft.

[0006] Further, the sealing support device includes a mechanical seal and a pump cover, the mechanical seal includes a static ring, a dynamic ring and a pressure cover, the static ring is sleeved on the rotating shaft, and the right end of the static ring with a stepped ring structure is adapted and positioned with the stepped ring hole of the pump cover sleeved on the rotating shaft, the stepped hole of the pressure cover is adapted and positioned with the left end of the static ring, and the static ring is pressed and fixed on the pump cover by the pressure cover fixedly connected to the pump cover, the dynamic ring contacts with the left end face of the static ring and is sleeved and fixed on the rotating shaft, the stepped surface at the right end of the pump cover is adapted with the stepped hole at the left end of the pump body, and a sealing gasket is provided between the stepped surface at the right end of the pump cover and the stepped surface at the left end of the pump body, and the pump cover is pressed and fixed to the pump body after the right end of the connecting bracket is fixedly connected to the left end of the pump body.

[0007] Furthermore, the particle crushing device includes a crushing blade fixed to the right end of the rotating shaft, a plurality of side blade heads extending outward are evenly distributed on the outer circumferential wall of the crushing blade, and more than one end blade head is evenly distributed on the end face of the crushing blade facing the inlet side, the water outlet impeller and the crushing blade are installed on the rotating shaft through a flat key, and the water outlet impeller is axially positioned by the shoulder at the right end of the rotating shaft, and the right end of the rotating shaft is provided with an anti-slip locking device for pressing and fixing the crushing blade and the water outlet impeller.

[0008] Furthermore, the side cutter head is an L-shaped alloy prism structure with a vertical section at one end and an outwardly extending end at the other end. The vertical section of the side cutter head is vertically fixed to the outer circumferential wall of the crushing blade disc, and the outer end of the side cutter head away from the fixed position is a triangular pointed structure extending outward.

[0009] Furthermore, the end face cutter head adopts an alloy block structure with edges.

[0010] Furthermore, the anti-slip locking device includes a screw, the left end of which is fixed to the right end surface of the rotating shaft, and the locking nut matched with the screw presses and fixes the crushing cutter disc on the rotating shaft.

[0011] Furthermore, the connecting bracket adopts a frame structure composed of annular flanges at both ends and a connecting ring fixed between the two annular flanges. The annular flange at one end of the connecting bracket is fixedly connected to the motor casing, and the annular flange at the other end of the connecting bracket is fixedly connected to the pump body.

[0012] The advantages of this utility model compared with the prior art:

[0013] 1. This technical solution optimizes the structure of the chemical delivery pump and sets a particle crushing device inside the pump body on the rotating shaft, so as to efficiently crush the particles in the liquid entering the pump body and then send them out through the pump body outlet, thereby solving the problem that particles in traditional chemical delivery pumps are easy to damage the internal sealing structure of the chemical delivery pump and cause large wear, thereby increasing the service life of the chemical delivery pump and reducing the frequency and cost of repair and maintenance;

[0014] 2. The optimized seal support device of this technical solution can stably and reliably support the rotating shaft on the pump body and play a sealing role without the need to set bearings, thereby eliminating the faults caused by the wear and damage of the bearings by particulate matter;

[0015] 3. This technical solution has a simple structure, novel design, convenient and quick disassembly and assembly, a stable and reliable sealing structure, good effect, and extremely high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic structural diagram of the particle crushing device of the utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiment of the present utility model Figure 1-2 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising 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. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0021] Chemical delivery pump with crushing function, such as Figure 1-2As shown, it includes a motor 1 and a pump body 2 located outside the output shaft of the motor 1, a connecting bracket 3 for fixing the motor 1 and the pump body 2 as a whole is provided between the motor 1 and the pump body 2, a rotating shaft 4 supported on the pump body 2 by a sealing support device is provided in the connecting bracket 3, the output shaft of the motor 1 is fixedly connected to the left end of the rotating shaft 4, and the right end of the rotating shaft 4 extends into the pump body 2 and is fixedly connected to the water outlet impeller 5 and the particle crushing device located in the pump body 2, and the particle crushing device, driven by the motor 1, crushes the particles in the liquid entering from the inlet 6 of the pump body 2 and passes through the pump body 2. The liquid is delivered through the outlet 7, wherein the inlet 6 and the outlet 7 are connected, and the liquid enters from the inlet 6 and is delivered from the outlet 7 under the action of the high-speed rotating water outlet impeller 5; in the above structure, by optimizing the structure of the chemical delivery pump and arranging a particle crushing device located inside the pump body 2 on the rotating shaft 4, the particles in the liquid entering the inlet 6 of the pump body 2 are efficiently crushed and then delivered through the outlet 7 of the pump body 2, thereby solving the problem that the particles in the traditional chemical delivery pump are easy to damage the internal sealing structure of the chemical delivery pump and cause large wear, thereby improving the service life of the chemical delivery pump and reducing the frequency and cost of repair and maintenance;

[0022] The specific fixing structure of the rotating shaft 4 and the output shaft of the motor 1 is as follows: the left end of the rotating shaft 4 is a hollow structure, and the outer wall of the left end of the rotating shaft 4 is provided with a long groove 8 connected to the interior thereof, the output shaft of the motor 1 is inserted into the hole at the left end of the rotating shaft 4, and the output shaft of the motor 1 is clamped and fixed to the left end of the rotating shaft 4 by a shaft clamp 17 provided on the rotating shaft 4, wherein the shaft clamp 17 is similar to a clamping sleeve structure, including a clamping ring with a plurality of openings on a conical outer circumferential wall at one end and a sleeve with an inner hole that is a conical hole that matches the conical outer wall on the clamping ring, a plurality of through holes are evenly distributed on the end surface of the other end of the clamping ring, and bolts that pass through the through holes and match the threaded holes at the corresponding positions on the end surface of the sleeve fix the clamping ring to the sleeve, and the clamping or loosening of the rotating shaft 4 by the shaft clamp 17 is achieved by tightening or loosening the bolts.

[0023] The specific structure of the sealing support device is as follows: the sealing support device includes a mechanical seal and a pump cover 9, the mechanical seal includes a stationary ring 11, a dynamic ring 10 and a pressure cover 12, the stationary ring 11 is sleeved on the rotating shaft 4, that is, the stationary ring 11 and the rotating shaft 4 are clearance-matched, when the rotating shaft 4 rotates, the stationary ring 11 is in a stationary state, and the right end of the stationary ring 11 with a stepped ring structure is adapted and positioned with the stepped ring hole of the pump cover 9 sleeved on the rotating shaft 4, wherein the pump cover 9 and the rotating shaft 4 are clearance-matched, the pump cover 9 is stationary during the rotation of the rotating shaft 4, and a sealing ring in contact with the rotating shaft 4 is provided on the inner hole wall of the pump cover 9, and the step of the pressure cover 12 The hole is adapted and positioned with the left end of the static ring 11, and the static ring 11 is pressed and fixed on the pump cover 9 by a pressure cover 12 fixedly connected to the pump cover 9, wherein the left and right end surfaces of the convex ring in the middle of the static ring 11 are provided with sealing rings respectively in contact with the pump cover 9 and the pressure cover 12, the dynamic ring 10 is in contact with the left end surface of the static ring 11 and is fixed on the rotating shaft 4, the stepped surface at the right end of the pump cover 9 is adapted with the stepped hole at the left end of the pump body 2, and a sealing gasket is provided between the stepped surface at the right end of the pump cover 9 and the stepped surface at the left end of the pump body 2, and the pump cover 9 is pressed and fixed on the pump body 2 after the right end of the connecting bracket 3 is fixedly connected with the left end of the pump body 2.

[0024] The specific structure of the particle crushing device is as follows: the particle crushing device includes a crushing blade disc 13 fixed to the right end of the rotating shaft 4, and a plurality of side blade heads 14 extending outward are evenly distributed on the outer circumferential wall of the crushing blade disc 13, and one or more end blade heads 15 are evenly distributed on the end face of the crushing blade disc 13 facing the inlet 6. The water outlet impeller 5 and the crushing blade disc 13 are installed on the rotating shaft 4 through a flat key, and the water outlet impeller 5 is axially positioned by a shaft shoulder at the right end of the rotating shaft 4. This shaft shoulder, on the one hand, controls the position of the water outlet impeller 5. On the one hand, it can be used to position the breaker disc 13 and the water outlet impeller 5, and on the other hand, it can prevent some liquid from entering the interior of the rotating shaft 4. The right end of the rotating shaft 4 is provided with an anti-slip locking device for pressing and fixing the crushing disc 13 and the water outlet impeller 5; specifically, the anti-slip locking device includes a screw 16, the left end of which is fixed to the right end surface of the rotating shaft 4, and the locking nut matched with the screw 16 presses and fixes the crushing disc 13 on the rotating shaft 4, thereby ensuring the installation reliability of the water outlet impeller 5 and the crushing disc 13, and providing installation reliability for its high-speed rotation operation.

[0025] like Figure 2 As shown, the specific structure of the side cutter head 14 is as follows: the side cutter head 14 is an L-shaped alloy prism structure with a vertical section at one end and the other end extending outward, the vertical section of the side cutter head 14 is vertically fixed to the outer circumferential wall of the crushing blade disc 13, and the outer end of the side cutter head 14 away from the fixed position is a triangular pointed structure extending outward; specifically, the end face cutter head 15 adopts an alloy block structure with edges, and during the working process, the edges of the end face cutter head 15 crush the particles in the fluid, so that the particles are crushed and sent out from the outlet 7 together with the liquid.

[0026] The specific structure of the connecting bracket 3 is as follows: the connecting bracket 3 adopts a frame structure composed of annular flanges at both ends and a connecting ring fixed between the two annular flanges, the annular flange at one end of the connecting bracket 3 is fixedly connected to the motor 1 casing (specifically, bolts are used for fixing connection), and the annular flange at the other end of the connecting bracket 3 is fixedly connected to the pump body 2 (specifically, bolts are used for fixing connection).

[0027] The optimized sealing support device of the present technical solution can stably and reliably support the rotating shaft 4 on the pump body 2 while playing a sealing role, without the need to set bearings, thereby eliminating the faults caused by the wear and damage of the bearings by particulate matter; the structure is simple, the design is novel, the disassembly and assembly are convenient and quick, the sealing structure is stable and reliable, the effect is good, and it has extremely high use value.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Chemical delivery pump with crushing function, characterized by: The invention comprises a motor (1) and a pump body (2) located outside the output shaft of the motor (1), a connecting bracket (3) for fixing the motor (1) and the pump body (2) together, a rotating shaft (4) supported on the pump body (2) by a sealing support device is provided in the connecting bracket (3), the output shaft of the motor (1) is fixedly connected to the left end of the rotating shaft (4), and the right end of the rotating shaft (4) extends into the pump body (2) and is fixedly connected to the water outlet impeller (5) and the particle crushing device located in the pump body (2), and the particle crushing device, which rotates at a high speed, crushes the particles in the liquid entering from the inlet (6) of the pump body (2) and sends them out through the outlet (7) of the pump body (2) under the drive of the motor (1).

2. The chemical delivery pump with crushing function according to claim 1 is characterized in that: The left end of the rotating shaft (4) is a hollow structure, and a long groove (8) communicating with the interior of the rotating shaft (4) is formed on the outer wall of the left end of the rotating shaft (4); the output shaft of the motor (1) is inserted into the hole at the left end of the rotating shaft (4), and the output shaft of the motor (1) is clamped and fixed to the left end of the rotating shaft (4) by a shaft clamp (17) provided on the rotating shaft (4).

3. The chemical delivery pump with crushing function according to claim 1 is characterized in that: The sealing support device comprises a mechanical seal and a pump cover (9), wherein the mechanical seal comprises a stationary ring (11), a dynamic ring (10) and a gland (12), wherein the stationary ring (11) is sleeved on the rotating shaft (4), and the right end of the stationary ring (11) having a stepped ring structure is adapted and positioned with the stepped ring hole of the pump cover (9) sleeved on the rotating shaft (4), the stepped hole of the gland (12) is adapted and positioned with the left end of the stationary ring (11), and the stationary ring (11) is fixedly connected to the pump cover (9) The pressure cover (12) is pressed and fixed on the pump cover (9), the dynamic ring (10) contacts the left end surface of the static ring (11) and is fixed on the rotating shaft (4), the stepped surface at the right end of the pump cover (9) is adapted to the stepped hole at the left end of the pump body (2), and a sealing gasket is provided between the stepped surface at the right end of the pump cover (9) and the stepped surface at the left end of the pump body (2), and the pump cover (9) is pressed and fixed on the pump body (2) after the right end of the connecting bracket (3) is fixedly connected to the left end of the pump body (2).

4. The chemical delivery pump with crushing function according to claim 1 is characterized in that: The particle pulverizing device comprises a pulverizing blade disc (13) fixed to the right end of a rotating shaft (4); a plurality of side blade heads (14) extending outward are evenly distributed on the outer circumferential wall of the pulverizing blade disc (13); and one or more end blade heads (15) are evenly distributed on the end face of the pulverizing blade disc (13) facing the inlet (6); the water outlet impeller (5) and the pulverizing blade disc (13) are mounted on the rotating shaft (4) via a flat key, and the water outlet impeller (5) is axially positioned via a shaft shoulder at the right end of the rotating shaft (4); and an anti-dropping locking device for pressing and fixing the pulverizing blade disc (13) and the water outlet impeller (5) is provided at the right end of the rotating shaft (4).

5. The chemical delivery pump with crushing function according to claim 4 is characterized in that: The side cutter head (14) is an L-shaped alloy prism structure with a vertical section at one end and an outwardly extending other end; the vertical section of the side cutter head (14) is vertically fixed to the outer circumferential wall of the crushing cutter disc (13), and the outer end of the side cutter head (14) away from the fixed position is a triangular pointed structure extending outward.

6. The chemical delivery pump with crushing function according to claim 5, characterized in that: The end face cutter head (15) adopts an alloy block structure with edges.

7. The chemical delivery pump with crushing function according to claim 6, characterized in that: The anti-drop locking device comprises a screw rod (16), the left end of which is fixed to the right end surface of the rotating shaft (4), and a locking nut adapted to be connected to the screw rod (16) presses and fixes the crushing blade disc (13) to the rotating shaft (4).

8. The chemical delivery pump with crushing function according to any one of claims 1 to 7, characterized in that: The connecting bracket (3) adopts a frame structure composed of annular flanges at two ends and a connecting ring fixed between the two annular flanges; the annular flange at one end of the connecting bracket (3) is fixedly connected to the motor (1) casing, and the annular flange at the other end of the connecting bracket (3) is fixedly connected to the pump body (2).

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