Support and centrifugal pump

Abstract

The utility model provides a support and a centrifugal pump. The support comprises a support body and at least two adjusting assemblies, the support body comprises a first part and a second part, the first part is provided with a connecting part used for connecting the support body to a target position, the second part is connected with the first part, and the second part is provided with a first through hole; the at least two adjusting assemblies are connected with the two opposite positions of the second part correspondingly, at least part of each adjusting assembly is exposed out of the first through hole so that the at least two adjusting assemblies can be matched in the first through hole to define a second through hole, and the adjusting assemblies can reciprocate in the radial direction of the first through hole or deform. The central position and / or the aperture of the second through hole are / is adjusted. According to the centrifugal pump, the transmission shaft assembly between the motor and the pump body is preliminarily limited through the support main body, and then the transmission shaft assembly which is preliminarily limited is fixed through the adjusting assembly, so that the horizontal vibration phenomenon of the centrifugal pump can be reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of brackets, and in particular to a bracket and a centrifugal pump. Background Art

[0002] Centrifugal pumps transport liquids by generating centrifugal force through the rotation of the impeller.

[0003] The pump body and motor of the single-stage cantilever centrifugal pump are connected by a transmission shaft assembly. When the motor is working, the transmission shaft assembly transmits the rotational force generated by the motor to the impeller in the pump body, so that the impeller rotates in the pump body to generate centrifugal force, thereby realizing liquid transportation.

[0004] However, single-stage cantilever centrifugal pumps may experience horizontal vibration problems during operation. Utility Model Content

[0005] The present disclosure provides a bracket and a centrifugal pump, and a technical problem to be solved is to reduce the horizontal vibration of the centrifugal pump during operation.

[0006] In a first aspect, an embodiment of the present disclosure provides a bracket, which may include: a bracket body and at least two adjustment components, the bracket body including: a first part and a second part, the first part is provided with a connecting portion for connecting the bracket body to a target position, the second part is connected to the first part, and the second part is provided with a first through hole; at least two of the adjustment components are respectively connected to two positions of the second part opposite to each other, at least a part of each of the adjustment components is exposed in the first through hole so that the at least two adjustment components cooperate in the first through hole to define a second through hole, and the adjustment components can reciprocate or deform in a radial direction of the first through hole to adjust the center position and / or aperture of the second through hole.

[0007] In some embodiments, the second part is provided with at least two threaded holes connected to the first through hole; at least two of the adjustment components are connected to the at least two threaded holes in a one-to-one correspondence, and the adjustment component includes: a screw rod, which passes through the threaded hole and cooperates with the thread of the threaded hole; wherein the screw rod of the adjustment component rotates relative to the connected threaded hole to adjust the center position and / or aperture of the second through hole.

[0008] In some embodiments, the adjustment assembly further includes: a first nut and a second nut, the first nut and the second nut are respectively screwed on different positions on the outer surface side of the screw corresponding to the second part, and the axial dimensions of the first nut and the second nut are different.

[0009] In some embodiments, the first part includes: two supporting feet, the two supporting feet are respectively connected to the outer side of the second part and opposite to each other to support the second part at the target position, and the connecting part is provided on each of the supporting feet.

[0010] In some embodiments, the second part is annular, and the two supporting feet are symmetrical about the second part; the supporting feet include: a first plate body and a second plate body, the first plate body is connected to the outer side of the second part and is tangent to the outer surface of the second part, the second plate body is perpendicular to the first plate body, the second plate body has a supporting surface that can be supported at the target position, and the second plate body is provided with at least one third through hole connected to the supporting surface to form the connecting portion.

[0011] In some embodiments, the thickness of the first plate is greater than the thickness of the second plate.

[0012] In some embodiments, the supporting foot further includes: a third plate body, the third plate body is disposed in a right-angle space defined by the first plate body and the second plate body, and is respectively connected to the first plate body and the second plate body in the right-angle space.

[0013] In some embodiments, a width of an end of the third plate connected to the first plate is smaller than a width of an end of the third plate connected to the second plate.

[0014] In some embodiments, the second part is provided with at least one fourth through hole connected to the first through hole; the at least two adjustment components are arranged on the inner wall of the second part forming the first through hole, any of the adjustment components is provided with an inflation cavity and a pipeline connecting the inflation cavity and the fourth through hole, and the part of the adjustment component corresponding to the first through hole is elastic.

[0015] In a second aspect, the present disclosure provides a centrifugal pump, which may include: a fixed platform, a bracket described in any embodiment of the first aspect, and a transmission shaft assembly, the fixed platform having a first connection position and a second connection position and a third connection position located on both sides of the first connection position, the bracket being connected to the first connection position of the fixed platform via a connecting portion on the first part, the transmission shaft assembly passing through a first through hole on the second part of the bracket, and being squeezed by multiple adjustment assemblies of the bracket to be limited in the second through hole, and the two ends of the transmission shaft assembly correspond to the second connection position and the third connection position, respectively.

[0016] Through the above technical scheme, the bracket and centrifugal pump provided by the present disclosure, the bracket may include: a bracket body and at least two adjustment components, the bracket body can be used to preliminarily limit the transmission shaft assembly between the motor and the pump body, and then the transmission shaft assembly after the preliminarily limiting can be fixed by the adjustment component, so as to reduce the horizontal vibration of the centrifugal pump, and when vibration occurs again, the transmission shaft assembly can be fixed again by the adjustment component while the centrifugal pump is still working, thereby avoiding the interruption of the liquid conveying operation and improving the efficiency of the liquid conveying operation.

[0017] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present disclosure in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of a partial structure of a bracket provided in an embodiment of the present disclosure;

[0020] Figure 2 The structure of the support body provided in the embodiment of the present disclosure is shown in FIG. Figure 1 ;

[0021] Figure 3 The structure of the support body provided in the embodiment of the present disclosure is shown in FIG. Figure 2 ;

[0022] Figure 4 A schematic diagram of the structure of a centrifugal pump provided in an embodiment of the present disclosure Figure 1 ;

[0023] Figure 5 A schematic diagram of the structure of a centrifugal pump provided in an embodiment of the present disclosure Figure 2 .

[0024] Description of reference numerals:

[0025] 10. bracket; 11. bracket body; 111. first part; 1111. connecting part; 1112. first plate; 1113. second plate; 1114. supporting surface; 1115. third plate; 112. second part; 1121. first through hole; 1122. threaded hole; 12. adjustment assembly; 121. screw rod; 122. first nut; 123. second nut;

[0026] 20. Centrifugal pump; 21. Fixed platform; 22. Transmission shaft assembly; 221. First transmission shaft; 222. Second transmission shaft; 223. Coupling; 224. Protective shell; 23. Motor; 24. Pump body; 241. First opening; 242. Second opening. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0028] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0029] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure 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 a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0030] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0031] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0032] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0034] Single-stage cantilever centrifugal pumps may experience horizontal vibration during operation. One solution is that maintenance personnel can replace one or more of the pump body, drive shaft assembly, and motor of the centrifugal pump, and then confirm whether the vibration is within the error range after replacement. If it is within the error range, stop the replacement operation and start the centrifugal pump to continue the liquid conveying operation. However, the centrifugal work of the centrifugal pump causes the centrifugal pump to vibrate outside the error range again after running for a period of time. If the pump body, drive shaft assembly, and motor of the centrifugal pump are replaced again, and whether the vibration is confirmed, at least the shutdown, disassembly, replacement, confirmation, and startup operations are required again. Each shutdown will cause the liquid conveying operation to be interrupted, thereby affecting the efficiency of the liquid conveying operation.

[0035] The inventors have discovered that the transmission shaft assembly 22 between the motor 23 and the pump body 24 can be initially limited by the bracket body 11 of the bracket 10, and then the transmission shaft assembly 22 after the initial limiting can be fixed by the adjustment assembly 12, so as to reduce the horizontal vibration of the centrifugal pump 20, and when vibration occurs again, the transmission shaft assembly 22 can be fixed again by the adjustment assembly 12 while the centrifugal pump 20 is still working, thereby avoiding the interruption of the liquid conveying operation and improving the efficiency of the liquid conveying operation.

[0036] First aspect

[0037] The present disclosure provides a bracket 10, see Figures 1 to 5 As shown, the bracket 10 may include: a bracket body 11 and at least two adjustment components 12, the bracket body 11 includes: a first part 111 and a second part 112, the first part 111 is provided with a connecting portion 1111 for connecting the bracket body 11 to a target position, the second part 112 is connected to the first part 111, and the second part 112 is provided with a first through hole 1121; at least two adjustment components 12 are respectively connected to two positions of the second part 112 opposite to each other, at least part of each adjustment component 12 is exposed in the first through hole 1121 so that the at least two adjustment components 12 cooperate to define a second through hole in the first through hole 1121, and the adjustment component 12 can reciprocate or deform in the radial direction of the first through hole 1121 to adjust the center position and / or aperture of the second through hole. The term "and / or" in this article is merely a description of the association relationship of associated objects, identifying three possible relationships. For example, A and / or B is specifically understood as: A and B can be included at the same time, A can exist alone, or B can exist alone, and any of the above three situations can be met.

[0038] When in use, the bracket body 11 can be fixed on a fixed structure such as a platform, the ground, or a fixed table 21 through the connecting portion 1111, and the transmission shaft assembly 22 can be inserted into the first through hole 1121 of the second portion 112 to preliminarily limit the transmission shaft assembly 22 through the first through hole 1121, and then at least one adjustment assembly 12 can be adjusted so that multiple adjustment assemblies 12 can squeeze the transmission shaft assembly 22 in the first through hole 1121, and limit the transmission shaft assembly 22 in the second through hole defined by the multiple adjustment assemblies 12; and then, the motor 23 can be connected to one end of the transmission shaft assembly 22 and the motor 23 can be fixed according to the position of one end of the transmission shaft assembly 22, and the impeller in the pump body 24 can be connected to the other end of the transmission shaft assembly 22 and the pump body 24 can be fixed according to the position of the other end of the transmission shaft assembly 22. In this way, the motor 23, the transmission shaft assembly 22 and the pump body 24 are aligned with each other to reduce the probability of the centrifugal pump 20 vibrating outside the error range. Since the adjustment assembly 12 can reciprocate or deform in the radial direction of the first through hole 1121, the adjustment assembly 12 can be adjusted to fix the transmission shaft assembly 22 again when the centrifugal pump 20 continues to work, thereby reducing the probability of the centrifugal pump 20 vibrating outside the error range again.

[0039] In the bracket body 11, the connecting portion 1111 on the first portion 111 may be as follows: Figures 1 to 5The connecting hole shown in the figure, in this way, the bolt can pass through the screw hole under the action of the rotational force and fix the first part 111 on the fixed structure such as the platform, the ground, the fixed platform 21, and the bolt can be removed from the first part 111 under the action of the reverse rotational force to realize the separation of the first part 111 from the fixed structure such as the platform, the ground, the fixed platform 21; the connecting part 1111 can also be a first adsorption device, and the fixed structure such as the platform, the ground, the fixed platform 21 is provided with a second adsorption device, so that the connecting part 1111 and the fixed structure can be connected to each other through the mutual adsorption between the first adsorption device and the second adsorption device; the connecting part 1111 can also be other settings. The number of connecting parts 1111 can be multiple, so that the bracket body 11 and the fixed structure such as the platform, the ground, the fixed platform 21 are connected more firmly through the connection of multiple connecting parts 1111. The connection between the second part 112 and the first part 111 can be an integrally formed connection, or it can be welding (such as: welding with a welding rod and ensuring that the weld is full, and welding twice), it can also be a screw connection, or it can be other connection methods. The first through hole 1121 on the second portion 112 may be Figures 1 to 5 The circular hole shown in the figure may also be a triangular hole, a regular pentagonal hole, or a hole of other shapes.

[0040] In the adjustment assembly 12, the number of the adjustment assembly 12 can be two, three, or more than three. The multiple adjustment assemblies 12 are respectively connected to different positions of the second part 112 and are respectively exposed in the first through hole 1121. In this way, the second through hole can be defined in the first through hole 1121 by the multiple adjustment assemblies 12, and when the length of the adjustment assemblies 12 of different numbers / positions exposed in the first through hole 1121 is adjusted, the center position of the defined second through hole is different, or the aperture of the defined second through hole is different, or both the center position and the aperture of the defined second through hole are different. Here, two of the adjustment assemblies 12 are opposite to each other, so that the center position of the transmission shaft assembly 22 can be fixed by the two adjustment assemblies 12 first, and then the transmission shaft assembly 22 can be further fixed by other adjustment assemblies 12.

[0041] In some embodiments, see Figures 1 to 5 As shown, the second part 112 is provided with at least two threaded holes 1122 connected to the first through hole 1121; at least two adjustment components 12 are connected to the at least two threaded holes 1122 in a one-to-one correspondence, and the adjustment component 12 may include: a screw 121, the screw 121 passes through the threaded hole 1122 and cooperates with the thread of the threaded hole 1122; wherein the screw 121 of the adjustment component 12 rotates relative to the connected threaded hole 1122 to adjust the center position and / or aperture of the second through hole.

[0042] That is to say, each adjustment component 12 is provided with a screw 121, the circumferential surface of the screw 121 has a spirally extending thread, and the thread is adapted to the thread of the inner wall of the threaded hole 1122 opened on the second part 112 and connected to the first through hole 1121, so that the screw 121 can be screwed into the threaded hole 1122 under the action of rotational force to be fixed relative to the threaded hole 1122; and when the screw 121 of one or more adjustment components 12 rotates relative to the connected threaded hole 1122, at least one of the center position and the aperture of the defined second through hole can be adjusted. The manufacturing process of the screw 121 and the threaded hole 1122 is already very mature, which makes the manufacturing process of the bracket 10 simple. At the same time, by providing rotational force to the screw 121, at least one of the center position and the aperture of the second through hole can be adjusted, making the adjustment method convenient and fast; in addition, when the centrifugal pump 20 vibrates after working for a period of time, the screw 121 can be rotated without stopping the centrifugal pump 20 to stop vibrating when it is observed that the centrifugal pump 20 stops vibrating or the vibration amplitude is within the error range.

[0043] In some embodiments, see Figure 1 As shown, the adjustment assembly 12 may further include: a first nut 122 and a second nut 123, which are respectively screwed on different positions of the outer surface side of the screw rod 121 corresponding to the second part 112, and the axial dimensions of the first nut 122 and the second nut 123 are different. The first nut 122 and the second nut 123 can abut against each other to limit the screw rod 121, so as to reduce the probability of the center position and / or aperture of the second through hole changing due to the external structure squeezing the screw rod 121, so that the transmission shaft assembly 22 can be maintained in the current fixed state; and because the axial dimensions of the first nut 122 and the second nut 123 are different, the probability of the first nut 122 and the second nut 123 being loosened at the same time is small, so that when one of them is loosened, the other can continue to limit the screw rod 121.

[0044] In some embodiments, see Figures 1 to 5 As shown, the first part 111 includes: two supporting feet, the two supporting feet are respectively connected to the outer side of the second part 112 and are opposite to each other, so as to support the second part 112 at the target position, and each supporting foot is provided with a connecting portion 1111. In this way, the two supporting feet are opposite to each other, so that the second part 112 can be stably supported by the two supporting feet, and the connecting portions 1111 respectively provided on the two supporting feet can be respectively connected to different positions of a fixed structure such as a platform, the ground, and a fixed platform 21, so that the first part 111 can be more stably connected to a fixed structure such as a platform, the ground, and a fixed platform 21.

[0045] In some embodiments, see Figures 1 to 5 As shown, the second part 112 is annular, and the two supporting feet are symmetrical about the second part 112; the supporting feet include: a first plate body 1112 and a second plate body 1113, the first plate body 1112 is connected to the outer side of the second part 112 and is tangent to the outer surface of the second part 112, the second plate body 1113 is perpendicular to the first plate body 1112, the second plate body 1113 has a supporting surface 1114 that can be supported at a target position, and the second plate body 1113 is provided with at least one third through hole connected to the supporting surface 1114 to form a connecting portion 1111.

[0046] The second plate 1113 may be located on the side of the first plate 1112 facing away from the second part 112 as shown in Figure 1, or may be located on the same side of the first plate 1112 as the second part 112, or may be other arrangements that can support the second part 112 and the transmission shaft assembly 22 in the second through hole of the second part 112. The second plate 1113 may be made of a material with high structural strength to more stably support the second part 112 and the transmission shaft assembly 22 in the second through hole of the second part 112. For example, the second plate 1113 may be made of a 20 mm thick carbon steel plate, which has high strength to support the second part 112 and the transmission shaft assembly 22 in the second through hole of the second part 112.

[0047] The third through hole can be a hole with a threaded inner wall, so that a screw can be screwed into the third through hole and screwed into a fixed structure such as a platform, the ground, or a fixed platform 21, and the head of the screw abuts against the second plate 1113 around the third through hole to better fix the bracket body 11; the third through hole can also be a hole with a smooth inner wall, so that a screw can pass through the third through hole and screwed into a fixed structure such as a platform, the ground, or a fixed platform 21, and the head of the screw abuts against the second plate 1113 around the third through hole to better fix the bracket body 11; the third through hole can also be other settings. The two support legs are symmetrical about the second part 112, so that the bracket body 11 has a symmetrical beauty, thereby making the appearance of the bracket body 11 beautiful.

[0048] In some embodiments, the thickness of the first plate 1112 is greater than the thickness of the second plate 1113 , so as to provide a more stable supporting force to the second portion 112 of the bracket 10 , thereby providing a more stable supporting force to the transmission shaft assembly 22 in the second through hole of the second portion 112 .

[0049] In some embodiments, see Figures 1 to 5As shown, the supporting foot may further include: a third plate body 1115, which is disposed in a right angle space defined by the first plate body 1112 and the second plate body 1113, and is respectively connected to the first plate body 1112 and the second plate body 1113 in the right angle space.

[0050] The third plate 1115 may be perpendicular to the first plate 1112 and the second plate 1113, respectively, or may not be perpendicular to at least one of the first plate 1112 and the second plate 1113. The connection between the third plate 1115 and the first plate 1112 and the second plate 1113 may be an integrally formed connection, welding, screw connection, or other connection methods, such as: the third plate 1115 and the first plate 1112 and the second plate 1113 are welded by welding rods and the weld is fully welded, and the welding is performed twice to ensure the firmness of the connection. The third plate 1115 forms a reinforcing rib between the first plate 1112 and the second plate 1113 to improve the structural strength of the first part 111.

[0051] In some embodiments, see Figures 3 to 5 As shown, the width of the third plate 1115 connected to the first plate 1112 is smaller than the width of the third plate 1115 connected to the second plate 1113. Here, when the second portion 112 is above the first portion 111, the width of the third plate 1115 connected to the first plate 1112 is smaller than the width of the third plate 1115 connected to the second plate 1113, so that the volume of the lower end of the bracket body 11 is large, so as to better support the transmission shaft assembly 22 thereon.

[0052] In other embodiments, the second part 112 is provided with at least one fourth through hole connected to the first through hole 1121; at least two adjustment components 12 are arranged on the inner wall of the second part 112 to form the first through hole 1121; any adjustment component 12 is provided with an air-filling cavity and a pipeline connecting the air-filling cavity and the fourth through hole, and the portion of the adjustment component 12 corresponding to the first through hole 1121 is elastic. In this way, air can be inflated into the air-filling cavity through the fourth through hole, so that the air-filling cavity expands to form a second through hole to limit the transmission shaft component 22. For example: four adjustment components 12 are evenly distributed on the inner wall of the first through hole 1121, and when the fourth through hole is inflated, the four adjustment components 12 expand respectively to form a second through hole in the first through hole 1121, and because the portion of the adjustment component 12 corresponding to the first through hole 1121 is elastic, it can be deformed adaptively according to the contour of the transmission shaft component 22 in the second through hole and squeeze the transmission shaft component 22 in the second through hole, so as to better limit the transmission shaft component 22.

[0053] In one example, see 1 to Figure 3 As shown, the bracket 10 may include:

[0054] The bracket body 11 may include: a first part 111 and a second part 112, the second part 112 is provided with a first through hole 1121 to form a ring shape, the second part 112 is opened with four threaded holes 1122 respectively connected to the first through hole 1121, and the four threaded holes 1122 are evenly distributed around the circumferential surface of the second part 112. The first part 111 may include: two supporting feet that are relatively and symmetrically arranged, and the two supporting feet are respectively connected to two opposite positions on the outer side of the second part 112 to support the second part 112. Each supporting foot may include: a first plate body 1112, a second plate body 1113 and a third plate body 1115. The first plate body 1112 is connected to the outer side of the second part 112 and is tangent to the outer surface of the second part 112. The second plate body 1113 is perpendicular to the first plate body 1112. The second plate body 1113 has a supporting surface 1114 that can be supported at a target position, and the second plate body 1113 is provided with two third through holes connected to the supporting surfaces 1114 to form a connecting portion 1111. The third plate body 1115 is arranged in a right-angle space defined by the first plate body 1112 and the second plate body 1113, and is respectively vertically connected to the first plate body 1112 and the second plate body 1113 in the right-angle space.

[0055] The four adjustment components 12 are connected to the four threaded holes 1122 of the second part 112 in a one-to-one correspondence. Each adjustment component 12 may include: a screw 121, a first nut 122 and a second nut 123. The screw 121 passes through the corresponding threaded hole 1122 and cooperates with the thread of the threaded hole 1122. The screw 121 rotates relative to the connected threaded hole 1122 to adjust the center position and / or aperture of the second through hole; the first nut 122 and the second nut 123 are respectively screwed on different positions on the outer surface side of the screw 121 corresponding to the second part 112, and the axial dimensions of the first nut 122 and the second nut 123 are different.

[0056] In this embodiment, the screws can pass through the third through holes and be connected to a fixed structure such as a platform, the ground, or a fixing platform 21 to fix the bracket 10 . The screws can also be removed to facilitate assembly and disassembly.

[0057] Second aspect

[0058] The present disclosure provides a centrifugal pump 20, see Figure 4 and Figure 5As shown, the centrifugal pump 20 may include: a fixed platform 21, a bracket 10 of any embodiment in the first aspect, and a transmission shaft assembly 22, the fixed platform 21 having a first connection position and a second connection position and a third connection position located on both sides of the first connection position, the bracket 10 is connected to the first connection position of the fixed platform 21 through a connecting portion 1111 on the first part 111, the transmission shaft assembly 22 is passed through a first through hole 1121 on the second part 112 of the bracket 10, and is squeezed by a plurality of adjustment assemblies 12 of the bracket 10 to be limited in the second through hole, and the two ends of the transmission shaft assembly 22 correspond to the second connection position and the third connection position, respectively.

[0059] Here, the second connection position is used to fix the motor 23, and the third connection position is used to fix the pump body 24. The first connection position, the second connection position and the third connection position on the fixing platform 21 can be at the same height, or they can be Figure 4 and Figure 5 As shown in the figure, they are at different heights, which can be set according to the heights of the two ends of the transmission shaft assembly 22 and the size of the motor 23 and the size of the pump body 24 to be connected, so that after the motor 23, the transmission shaft assembly 22 and the pump body 24 are connected, the transmission shaft assembly 22 is aligned with the impeller of the motor 23 and the pump body 24 respectively.

[0060] In one example, see Figure 4 and Figure 5As shown, the transmission shaft assembly 22 may include: a first transmission shaft 221, a second transmission shaft 222, a coupling 223 and a protective shell 224. The first transmission shaft 221 is connected to the motor 23 to rotate under the drive of the motor 23, and the second transmission shaft 222 is connected to the impeller in the pump body 24. The coupling 223 is respectively connected to the first transmission shaft 221 and the second transmission shaft 222, so that under the drive of the motor 23, the impeller in the pump body 24 is rotated through the transmission of the first transmission shaft 221, the coupling 223 and the second transmission shaft 222, and the protective shell 224 covers the outer side of the coupling 223 to protect the coupling 223. When installing the bracket 10, first remove the coupling 223 and the protective shell 224, then fix the bracket 10 on the fixed platform 21 between the motor 23 and the pump body 24 through the connecting part 1111, and extend the second transmission shaft 222 into the first through hole 1121 and squeeze and limit it in the second through hole through multiple adjustment components 12, then connect the coupling 223 with the first transmission shaft 221 and the second transmission shaft 222 respectively, and finally assemble the protective shell 224; when the centrifugal pump 20 vibrates, adjust the adjustment component 12, so as to reduce the impact of the reduced operating efficiency caused by the centrifugal pump 20 stopping working. Among them, the pump body 24 has a first opening 241 and a second opening 242, the first opening 241 is located at one end of the pump body 24, and the second opening 242 is located on the surface of the pump body 24 in the circumferential direction, so that under the rotation of the impeller in the pump body 24, the liquid entering from the first opening 241 is sent out from the second opening 242 at high speed under the action of the centrifugal force of the impeller.

[0061] It should be noted that the bracket in the centrifugal pump provided in the embodiment of the present disclosure is similar to the description of the bracket embodiment described above, and has similar beneficial effects as the bracket embodiment described above. For technical details not disclosed in the centrifugal pump embodiment of the present disclosure, please refer to the description of the bracket embodiment in the present disclosure for understanding, and no further description will be given here.

[0062] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0063] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A bracket, characterized in that: include: The bracket body comprises: a first part and a second part, wherein the first part is provided with a connecting portion for connecting the bracket body to a target position, the second part is connected to the first part, and the second part is provided with a first through hole; At least two adjustment components are respectively connected to two positions of the second part that are opposite to each other, and at least a portion of each of the adjustment components is exposed in the first through hole so that the at least two adjustment components cooperate to define a second through hole in the first through hole, and the adjustment components can reciprocate or deform in the radial direction of the first through hole to adjust the center position and / or aperture of the second through hole.

2. The bracket according to claim 1, characterized in that: The second portion is provided with at least two threaded holes communicating with the first through hole; At least two of the adjustment components are connected to at least two of the threaded holes in a one-to-one correspondence, and the adjustment components include: a screw rod, which passes through the threaded hole and cooperates with the thread of the threaded hole; Wherein, the screw of the adjustment assembly rotates relative to the connected threaded hole to adjust the center position and / or aperture of the second through hole.

3. The bracket according to claim 2, characterized in that: The adjustment assembly also includes: a first nut and a second nut, the first nut and the second nut are respectively screwed on different positions of the outer surface side of the screw corresponding to the second part, and the first nut and the second nut have different axial sizes.

4. The bracket according to claim 1, characterized in that: The first part includes: two supporting feet, the two supporting feet are respectively connected to the outer side of the second part and are opposite to each other, so as to support the second part at the target position, and the connecting part is arranged on each of the supporting feet.

5. The bracket according to claim 4, characterized in that: The second part is ring-shaped, and the two supporting legs are symmetrical about the second part; The supporting foot includes: a first plate body and a second plate body, the first plate body is connected to the outer side of the second part and is tangent to the outer surface of the second part, the second plate body is perpendicular to the first plate body, the second plate body has a supporting surface that can be supported at the target position, and the second plate body is provided with at least one third through hole connected to the supporting surface to form the connecting part.

6. The bracket according to claim 5, characterized in that: The thickness of the first plate body is greater than the thickness of the second plate body.

7. The bracket according to claim 5, characterized in that: The supporting foot further includes: a third plate body, which is disposed in a right-angle space defined by the first plate body and the second plate body, and is respectively connected to the first plate body and the second plate body in the right-angle space.

8. The bracket according to claim 7, characterized in that: The width of the third plate connected to one end of the first plate is smaller than the width of the third plate connected to one end of the second plate.

9. The bracket according to claim 1, characterized in that: The second portion is provided with at least one fourth through hole connected to the first through hole; The at least two adjustment components are arranged on the inner wall of the second part forming the first through hole, any of the adjustment components is provided with an inflation cavity and a pipeline connecting the inflation cavity and the fourth through hole, and the part of the adjustment component corresponding to the first through hole is elastic.

10. A centrifugal pump, characterized in that: include: A fixing platform having a first connection position and a second connection position and a third connection position located on both sides of the first connection position; The bracket according to any one of claims 1 to 9, wherein the bracket is connected to the first connection position of the fixing platform through the connecting portion on the first part; The transmission shaft assembly passes through the first through hole on the second part of the bracket and is squeezed by the multiple adjustment assemblies of the bracket to be limited in the second through hole, and the two ends of the transmission shaft assembly correspond to the second connection position and the third connection position respectively.

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