A horizontal pump

Abstract

The embodiment of the present application provides a horizontal pump, which belongs to the field of material conveying technology. The horizontal pump includes a rotating shaft, a pump casing, a pumping assembly and a power assembly. The pump casing is sleeved on the rotating shaft. The pumping assembly is located in the pump casing, and the pumping assembly is sleeved on the rotating shaft and rotates with the rotating shaft to convey the material in the pump casing. There are two power assemblies, and a power assembly is respectively arranged at both ends of the rotating shaft to drive the rotating shaft to rotate, and the pump casing is between the power assemblies at both ends. Since a power assembly is respectively arranged at both ends of the rotating shaft, it is beneficial to balance the loads at both ends of the rotating shaft of the horizontal pump, thereby reducing the vibration and noise of the horizontal pump.

Description

Technical Field

[0001] The present application relates to the technical field of material transportation, and in particular to a horizontal pump. Background Art

[0002] Pumps are usually used to transport materials and make the output materials have a certain pressure. In the process of using horizontal pumps to transport materials, the horizontal pumps have certain vibrations and noises. Summary of the invention

[0003] In view of this, an embodiment of the present application hopes to provide a horizontal pump to reduce the vibration and noise of the horizontal pump.

[0004] To achieve the above-mentioned purpose, the first aspect of the embodiment of the present application provides a horizontal pump, comprising:

[0005] Rotating shaft;

[0006] A pump housing, sleeved on the rotating shaft;

[0007] A pumping assembly is located in the pump housing, and the pumping assembly is sleeved on the rotating shaft and rotates with the rotating shaft to transport the material in the pump housing;

[0008] A power assembly, wherein the number of the power assemblies is two, one power assembly is respectively arranged at both ends of the rotating shaft to drive the rotating shaft to rotate, and the pump housing is between the power assemblies at the two ends.

[0009] In one embodiment, the power assemblies at both ends are symmetrically arranged.

[0010] In one embodiment, the rotating shaft directly connects the pumping assembly and the power assembly.

[0011] In one embodiment, the material is liquid, and the power assembly is an electromagnetic power assembly, which includes a shell connected to the pump casing and a stator component and a rotor component assembled in the shell and isolated from each other, and the shell is connected to the pump casing so that the liquid can infiltrate the rotor component.

[0012] In one embodiment, the electromagnetic power assembly further includes an isolation sleeve, which is at least partially disposed in the shell to separate the space in the shell into a stator cavity for accommodating the stator component and a rotor cavity for accommodating the rotor component, the stator cavity surrounds the rotor cavity, and the liquid is partially located in the rotor cavity to infiltrate the rotor component.

[0013] In one embodiment, the housing has a cooling water jacket surrounding the outside of the stator cavity, and the cooling water jacket is isolated from the stator cavity;

[0014] The cooling water jacket is respectively connected to the liquid inlet cavity of the pump housing and the liquid outlet cavity of the pump housing to cool the stator component and the rotor component, or the cooling water jacket is connected to an external circulating cooling water source to cool the stator component and the rotor component;

[0015] The rotor cavity is respectively communicated with the liquid inlet cavity of the pump housing and the liquid outlet cavity of the pump housing to cool the rotor component and the stator component.

[0016] In one embodiment, the horizontal pump further includes at least two balancing mechanisms, and at least one of the balancing mechanisms is respectively disposed at both ends of the rotating shaft to balance the axial force.

[0017] In one embodiment, the balancing mechanism has a balancing chamber and a balancing gap connected to the balancing chamber, the balancing gap can change with the axial force, and the liquid in the balancing chamber flows out through the balancing gap to balance the axial force of the rotating shaft.

[0018] In one embodiment, the balancing mechanism has a second liquid inlet connected to the balancing chamber, and the liquid flowing from the second liquid inlet through the balancing chamber, the balancing gap and the rotor component to the pump casing is used to take away the heat released by the rotor component and the stator component to cool the stator component and the rotor component, and the second liquid inlet is connected to the liquid outlet cavity of the pump casing or an external circulating cooling water source.

[0019] In one embodiment, the balancing mechanism includes a balancing adjustment member and a balancing base, the balancing adjustment member is sleeved on the rotating shaft to move with the rotating shaft, the balancing base and the balancing adjustment member enclose a balancing chamber and a balancing gap connected to the balancing chamber, the balancing base is connected to the shell, the balancing base can move axially relative to the rotating shaft, and the second liquid inlet is formed on the balancing base.

[0020] In one embodiment, the rotor component includes a rotor bracket sleeved on the rotating shaft and a rotor body sleeved on the rotor bracket, the rotor body abuts against the rotor bracket at one end along the axial direction of the rotating shaft toward the pump housing, and the other end of the rotor body protrudes from the end surface of the rotor bracket and abuts against the balancing adjustment member; the horizontal pump also includes a limit assembly and a bearing assembly sleeved on the rotating shaft, the limit assembly abuts against one end of the rotor bracket toward the pump housing, and the bearing assembly abuts against one end of the balancing adjustment member away from the pump housing along the axial direction of the rotating shaft, so as to limit the axial movement of the balancing adjustment member and the rotor component relative to the rotating shaft.

[0021] In one embodiment, the bearing assembly includes a first sleeve mounted on the rotating shaft and a first bearing mounted on the first sleeve, the first bearing is installed on the balancing base, the limiting assembly includes a second sleeve mounted on the rotating shaft and a second bearing mounted on the second sleeve, the second bearing is installed on the pump casing; wherein, the first sleeve abuts against one end of the balancing adjustment member along the axial direction of the rotating shaft away from the pump casing, and the second sleeve abuts against one end of the rotor bracket along the axial direction of the rotating shaft toward the pump casing, so as to limit the axial movement of the balancing adjustment member and the rotor component relative to the rotating shaft.

[0022] In one embodiment, the balancing mechanism is a third bearing sleeved on the rotating shaft, and the third bearing is used to bear radial force and axial force to balance the axial force of the rotating shaft.

[0023] In one embodiment, the third bearing includes a radial bearing and an axial bearing that are connected to each other, the radial bearing is used to bear radial force, the axial bearing is used to bear axial force, the axial bearing is located at one end of the radial bearing and surrounds the radial bearing, the radial bearing is at least partially installed on the pump housing, and the axial bearing is respectively abutted against the pump housing and the powertrain.

[0024] In one embodiment, the rotor component has a mounting hole, and the diameter of the mounting hole corresponding to the rotor component gradually decreases along the pump housing pointing in the direction corresponding to the rotor component. The rotating shaft passes through the mounting hole, and the rotating shaft has a conical mounting portion adapted to the mounting hole, and the mounting portion is at least partially located in the mounting hole.

[0025] In one embodiment, the horizontal pump further includes a first supporting foot connected below the power assembly, the first supporting foot is used to support the power assembly, and the power assembly corresponds to the first supporting foot one by one.

[0026] The horizontal pump of the embodiment of the present application has a power assembly disposed at each end of the rotating shaft, which helps to balance the loads at both ends of the rotating shaft of the horizontal pump and reduce vibration and noise of the horizontal pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a horizontal pump according to an embodiment of the present application, in which the balancing mechanism of the horizontal pump is a third bearing, and the rotor cavity in the figure does not receive the liquid from the liquid cavity;

[0028] Figure 2 Schematic diagram of the structure of a horizontal pump according to an embodiment of the present application, in which the balancing mechanism of the horizontal pump is a third bearing, and the rotor cavity is connected to the liquid outlet cavity to receive the liquid in the liquid outlet cavity;

[0029] Figure 3Schematic diagram of the structure of a horizontal pump according to an embodiment of the present application. In the figure, balancing mechanisms are provided at both ends of the horizontal pump, and the balancing mechanisms are leveled through a balancing chamber and a balancing gap;

[0030] Figure 4 for Figure 3 A magnified view at position A;

[0031] Figure 5 This is a three-dimensional diagram of a horizontal pump according to an embodiment of the present application, in which a power assembly is not shown;

[0032] Figure 6 for Figure 5 Schematic diagram of the structure shown from another perspective.

[0033] Description of reference numerals: rotating shaft 1; mounting portion 11; pump housing 2; upper housing 21; first flange 211; reinforcing rib 212; first main housing 213; lower housing 22; second flange 221; second main housing 222; pumping assembly 3; power assembly 4; housing 41; stator cavity 411; rotor cavity 412; first liquid inlet 413; cooling water jacket 414; stator component 42; rotor component 43; rotor bracket 431; rotor body 432; mounting hole 434; isolation sleeve 44; Balancing mechanism 5; balancing chamber 51; balancing gap 52; balancing adjustment member 53; balancing base 54; second liquid inlet 55; radial bearing 56; axial bearing 57; bearing assembly 6; first sleeve 61; first bearing 62; limiting assembly 7; second sleeve 71; sub-sleeve 711; second bearing 72; first supporting foot 91; second supporting foot 92; third supporting foot 93; liquid inlet chamber 101; liquid outlet chamber 102; block 103; liquid supply port 104; liquid outlet 105. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0035] In the description of the embodiments of the present application, "upper", "lower", "top", "bottom", orientation or position relationship is based on the attached Figure 1 Regarding the orientation or positional relationship shown, it should be understood that these orientation terms are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0036] For example, Figure 1 For reference, the up-down direction is the direction indicated by arrow R1 in the figure.

[0037] It is understandable that pumps can be divided into horizontal pumps and vertical pumps according to the arrangement of the rotating shaft. The axial direction of the rotating shaft of the vertical pump is roughly arranged in the vertical direction, and the axial direction of the rotating shaft of the horizontal pump is roughly arranged in the horizontal direction. The horizontal pump includes a pump housing, a rotating shaft, a pumping assembly and a power assembly. In the related art, the power assembly is located at one end of the rotating shaft, so that the overall load of the horizontal pump is biased toward the end of the rotating shaft facing the power assembly. The loads at both ends of the rotating shaft of the horizontal pump are difficult to balance, and the horizontal pump will generate greater vibration and noise during operation.

[0038] In view of this, the present application embodiment provides a horizontal pump, please refer to Figure 1 to Figure 3 The horizontal pump includes a rotating shaft 1, a pump casing 2, a pumping assembly 3 and a power assembly 4. The pump casing 2 is sleeved on the rotating shaft 1. The pumping assembly 3 is located in the pump casing 2, and the pumping assembly 3 is sleeved on the rotating shaft 1 and rotates with the rotating shaft 1 to transport the material in the pump casing 2. There are two power assemblies 4, and a power assembly 4 is respectively arranged at both ends of the rotating shaft 1 to drive the rotating shaft 1 to rotate, and the pump casing 2 is between the power assemblies 4 at both ends. In such a structural form, since a power assembly 4 is respectively arranged at both ends of the rotating shaft 1, it is beneficial to balance the loads at both ends of the rotating shaft 1 of the horizontal pump, thereby reducing the vibration and noise of the horizontal pump.

[0039] In one embodiment, please refer to the figure, the pump housing 2 is located between the power assemblies 4 at both ends along the axial direction of the rotating shaft 1 .

[0040] In one embodiment, the horizontal pump is a horizontal double-suction split case pump.

[0041] In one embodiment, the horizontal pump is a horizontal centrifugal pump.

[0042] In one embodiment, please refer to Figure 1 to Figure 3 , the power assemblies 4 at both ends are arranged symmetrically. With such a structural form, the loads at both ends of the rotating shaft 1 of the horizontal pump can be basically balanced, and the vibration and noise of the horizontal pump can be reduced.

[0043] In one embodiment, please refer to Figure 1 to Figure 3 , the rotating shaft 1 is directly connected to the pumping assembly 3 and the power assembly 4. In this structural form, the pumping assembly 3 and the power assembly 4 are directly connected to the rotating shaft 1, and there is no need to set an additional coupling to connect the rotating shaft. The coupling is eliminated, the structure of the horizontal pump is simplified, the installation error caused by the complex structure is reduced, the operation reliability is improved, the equipment purchase and operation and maintenance costs are reduced, and the vibration and noise generated by the coupling during the transmission process are reduced.

[0044] In one embodiment, please refer to Figure 1 to Figure 3 , the rotating shaft 1 is integrally formed.

[0045] In one embodiment, please refer to Figure 1 to Figure 3, the rotating shaft 1 is integrally formed and straddles the pump housing 2 and the power assembly 4 at both ends. In this structural form, since the rotating shaft 1 is integrally formed, the rotating shaft 1 straddles the pump housing 2 and the power assembly 4 at both ends is not connected through a coupling, the coupling is cancelled, the structure of the horizontal pump is simplified, the installation error caused by the complex structure is reduced, the operation reliability is improved, the equipment purchase and operation and maintenance costs are reduced, and the vibration and noise generated by the coupling during the transmission process are reduced.

[0046] In one embodiment, please refer to Figure 1 to Figure 3 , the rotating shaft 1 passes through the pump casing 2.

[0047] In one embodiment, the material pumped by the horizontal pump is liquid. Exemplarily, the material pumped by the horizontal pump is water.

[0048] In one embodiment, please refer to Figure 1 to Figure 3 , the material is liquid, the power assembly 4 is an electromagnetic power assembly 4, and the electromagnetic power assembly 4 includes a housing 41, a stator component 42 and a rotor component 43. The housing 41 is connected to the pump housing 2. The stator component 42 and the rotor component 43 are assembled in the housing 41, and the stator component 42 and the rotor component 43 are isolated from each other. The housing 41 and the pump housing 2 are connected to allow the liquid to soak the rotor component 43. In such a structural form, since the liquid in the pump housing 2 can flow to the housing 41 to soak the rotor component 43, there is no need to seal between the pump housing 2 and the housing 41 of the power assembly 4, and the shaft seal between the pump housing 2 and the housing 41 of the power assembly 4 is cancelled, the structure is simplified, the installation error caused by the complex structure is reduced, the operation reliability is improved, and the equipment purchase and operation and maintenance costs are reduced. The rotor component 43 is immersed in the liquid to reduce the vibration and noise during the rotation of the rotor component 43. The liquid soaking the rotor component 43 can absorb heat to a certain extent, thereby cooling the rotor component 43 and the stator component 42.

[0049] It is understandable that the coupling is eliminated and the housing 41 of the electromagnetic power assembly 4 is connected to the pump housing 2, which shortens the axial dimension of the horizontal pump along the rotating shaft 1 and can reduce the installation area of ​​the horizontal pump to a certain extent.

[0050] In one embodiment, please refer to Figure 1 to Figure 3 The housing 41 and the pump casing 2 are connected so that the liquid is partially located in the housing 41 , thereby wetting the rotor component 43 in the housing 41 .

[0051] In one embodiment, please refer to Figure 1 to Figure 3 The electromagnetic power assembly 4 is formed with a rotor cavity 412 and a stator cavity 411 , the rotor component 43 is located in the rotor cavity 412 , and the stator component 42 is located in the stator cavity 411 .

[0052] In one embodiment, please refer to Figure 1 to Figure 3 The rotor cavity 412 and the stator cavity 411 are both located in the housing 41 .

[0053] In one embodiment, please refer to Figure 1 to Figure 3 The electromagnetic power assembly 4 also includes an isolation sleeve 44, which is at least partially located in the housing 41 to separate the space in the housing 41 into a stator cavity 411 for accommodating the stator component 42 and a rotor cavity 412 for accommodating the rotor component 43. The stator cavity 411 surrounds the rotor cavity 412, and the liquid is partially located in the rotor cavity 412 to infiltrate the rotor component 43. In such a structural form, the stator cavity 411 and the rotor cavity 412 in the housing 41 are isolated from each other by the isolation sleeve 44, so that the stator component 42 in the stator cavity 411 and the rotor component 43 in the rotor cavity 412 are isolated from each other. Since the liquid is partially located in the rotor cavity 412 to infiltrate the rotor component 43, the isolation sleeve 44 isolates the rotor component 43 from the stator component 42, which is beneficial to protecting the coil of the stator component 42. The rotor component 43 and the stator component 42 are isolated by the isolation sleeve 44 , and the stator cavity 411 surrounds the rotor cavity 412 , which is helpful to shield the noise during the rotation of the rotor component 43 .

[0054] In one embodiment, please refer to Figure 2 The housing 41 has a cooling water jacket 414 surrounding the outside of the stator cavity 411, and the cooling water jacket 414 is isolated from the stator cavity 411. The cooling water jacket 414 is respectively connected to the liquid inlet cavity 101 of the pump housing 2 and the liquid outlet cavity 102 of the pump housing 2 to cool the stator component 42 and the rotor component 43, or the cooling water jacket 414 is connected to an external circulating cooling water source to cool the stator component 42 and the rotor component 43. The rotor cavity 412 is respectively connected to the liquid inlet cavity 101 of the pump housing 2 and the liquid outlet cavity 102 of the pump housing 2 to cool the rotor component 43 and the stator component 42. In such a structural form, the cooling water jacket 414 is respectively connected with the liquid inlet chamber 101 of the pump housing 2 and the liquid outlet chamber 102 of the pump housing 2, and the liquid in the liquid outlet chamber 102 flows to the liquid inlet chamber 102 through the cooling water jacket 414. The cooling water jacket 414 is connected with an external circulating cooling water source, and the water of the external circulating cooling water source circulates between the cooling water jacket 414 and the external circulating cooling water source. The water flowing in the cooling water jacket 414 takes away the heat released by the stator component 42 and the rotor component 43, thereby cooling the stator component 42 and the rotor component 43. The rotor chamber 412 is respectively connected with the liquid inlet chamber 101 of the pump housing 2 and the liquid outlet chamber 102 of the pump housing 2, and the liquid in the liquid outlet chamber 102 flows through the rotor chamber 412 and the rotor component 43 to the liquid inlet chamber 101, and the liquid flowing in the rotor chamber 412 takes away the heat released by the rotor component 43 and the stator component 42, thereby cooling the rotor component 43 and the stator component 42. There is no need to provide a fan for cooling the stator component 42 and the rotor component 43, thereby improving the motor efficiency.

[0055] In one embodiment, please refer to Figure 2 The housing 41 has a first liquid inlet 413 connected to the rotor cavity 412. The liquid flowing from the first liquid inlet 413 through the rotor cavity 412 to the pump housing 2 is used to take away the heat released by the rotor component 43 and the stator component 42 to cool the stator component 42 and the rotor component 43.

[0056] In one embodiment, the first liquid inlet 413 is communicated with the liquid outlet cavity 102 .

[0057] In one embodiment, the electromagnetic power assembly 4 is an asynchronous motor and a permanent magnet motor.

[0058] In one embodiment, please refer to Figure 1 to Figure 3 A liquid inlet chamber 101 and a liquid outlet chamber 102 are formed in the pump housing 2. The pumping assembly 3 is used to pump the liquid in the liquid inlet chamber 101 in the pump housing 2 to the liquid outlet chamber 102, and then pump the liquid out of the pump housing 2 through the liquid outlet chamber 102.

[0059] In one embodiment, the pressure of the liquid outlet chamber 102 is greater than the pressure of the liquid inlet chamber 101 .

[0060] In one embodiment, please refer to Figure 1 to Figure 3 There are two liquid inlet chambers 101, and one liquid inlet chamber 101 is provided at each end of the pump housing 2 along the axial direction of the rotating shaft 1. The liquid outlet chamber 102 is located between the liquid inlet chambers 101 at both ends along the axial direction of the rotating shaft 1, and the liquid outlet chamber 102 surrounds the pumping assembly 3. The pumping assembly 3 pumps the liquid in the liquid inlet chamber 101 to the liquid outlet chamber 102.

[0061] In one embodiment, please refer to Figure 1 to Figure 3 , the rotor chamber 412 is connected to the liquid inlet chamber 101.

[0062] In one embodiment, please refer to Figure 2 , the first liquid inlet 413 is connected to the liquid outlet cavity 102 of the pump housing 2. With such a structural form, the liquid with a relatively high pressure in the liquid outlet cavity 102 enters the rotor cavity 412 through the first liquid inlet 413, and flows to the pump housing 2 through the rotor cavity 412, so that the liquid in the rotor cavity 412 flows continuously, taking away the heat released by the stator component 42 and the rotor component 43, and making full use of the liquid with a relatively high pressure in the liquid outlet cavity 102 so that the liquid can flow in the rotor cavity 412, without the need for an additional mechanism to provide pressure.

[0063] In one embodiment, please refer to Figure 2 The rotor chamber 412 is connected to the liquid inlet chamber 101 of the pump housing 2. The liquid with higher pressure in the liquid outlet chamber 102 enters the rotor chamber 412 through the first liquid inlet port 413, and flows through the rotor chamber 412 to the liquid inlet chamber 101 with lower pressure in the pump housing 2.

[0064] In one embodiment, please refer to Figure 2The first liquid inlet 413 can be connected to an external circulating cooling water source. In this structural form, water is supplied to the rotor cavity 412 through the external circulating cooling water source, so that the water flow in the rotor cavity 412 drives the heat released by the stator component 42 and the rotor component 43.

[0065] It is understandable that during the process of pumping materials by the pumping assembly 3, it is difficult for the liquid pumped by the pumping assembly 3 in the liquid inlet chambers 101 at both ends of the pump housing 2 along the axial direction of the rotating shaft 1 to be completely symmetrical, and the pumping assembly 3 will inevitably generate residual axial force during the process of pumping materials. In view of this, in one embodiment, please refer to Figure 1 to Figure 3 The horizontal pump further includes at least two balancing mechanisms 5, and at least one balancing mechanism 5 is respectively provided at both ends of the rotating shaft 1 to balance the axial force. In such a structural form, since at least one balancing mechanism 5 is respectively provided at both ends of the rotating shaft 1, the axial force generated by the pumping assembly 3 toward either axial end of the rotating shaft 1 during the process of pumping materials can be balanced by the corresponding balancing mechanisms 5 at both ends of the rotating shaft 1, thereby achieving the purpose of better balancing the residual axial force.

[0066] In one embodiment, please refer to Figure 3 The balancing mechanism 5 has a balancing chamber 51 and a balancing gap 52 connected to the balancing chamber 51. The balancing gap 52 can change with the axial force, and the liquid in the balancing chamber 51 flows out through the balancing gap 52 to balance the axial force of the rotating shaft 1. In such a structural form, the liquid in the balancing chamber 51 flows out through the balancing gap 52 to generate a certain axial force to balance the residual axial force. When the pumping assembly 3 generates residual axial force during the process of pumping materials, the balancing gap 52 of the balancing mechanism 5 at the corresponding end will be reduced, and the axial force generated by the liquid in the balancing chamber 51 of the balancing mechanism 5 flowing through the balancing gap 52 will increase to balance the residual axial force.

[0067] In one embodiment, please refer to Figure 3 The balancing gap 52 surrounds the balancing chamber 51. With such a structural form, the axial force formed by the fluid flowing through the balancing gap 52 is distributed more evenly in the circumferential direction of the balancing chamber 51.

[0068] In one embodiment, please refer to Figure 3The balancing mechanism 5 has a second liquid inlet 55 connected to the balancing chamber 51. The liquid flowing from the second liquid inlet 55 to the pump housing 2 through the balancing chamber 51, the balancing gap 52 and the rotor component 43 is used to take away the heat released by the rotor component 43 and the stator component 42 to cool the stator component 42 and the rotor component 43. In such a structural form, the liquid enters the balancing chamber 51 through the second liquid inlet 55, and the liquid in the balancing chamber 51 flows to the pump housing 2 through the balancing gap 52 and the rotor component 43. On the one hand, the liquid flowing through the second liquid inlet 55 through the balancing gap 52 can balance the residual axial force. On the other hand, the liquid flowing through the balancing gap 52 through the rotor component 43 flows to the pump housing 2 to take away the heat released by the stator component 42 and the rotor component 43, thereby achieving the purpose of cooling the stator component 42 and the rotor component 43. There is no need to set up a fan for cooling the stator component 42 and the rotor component 43, thereby improving the efficiency of the motor.

[0069] In one embodiment, please refer to Figure 3 , the second liquid inlet 55 is connected to the liquid outlet cavity 102 of the pump housing 2. With this structure, the liquid with a relatively high pressure in the liquid outlet cavity 102 is fully utilized to balance the axial residual force, and the liquid flows through the rotor component 43 to cool the rotor component 43 and the stator component 42, without the need for an additional mechanism to provide pressure.

[0070] In one embodiment, the second liquid inlet 55 is connected to an external circulating cooling water source.

[0071] In one embodiment, please refer to Figure 3 The balancing mechanism 5 includes a balancing adjustment member 53 and a balancing base 54. The balancing adjustment member 53 is sleeved on the rotating shaft 1 to move with the rotating shaft 1. The balancing base 54 and the balancing adjustment member 53 are arranged to form a balancing chamber 51 and a balancing gap 52 connected to the balancing chamber 51. The balancing base 54 is connected to the housing 41 and can move axially relative to the rotating shaft 1. In such a structural form, since the balancing base 54 is connected to the housing 41 and moves axially relative to the rotating shaft 1, the rotating shaft 1 drives the balancing adjustment member 53 to rotate relative to the balancing base 54. Under the action of the residual axial force, the rotating shaft 1 drives the balancing adjustment member 53 to approach the balancing base 54, and the balancing gap 52 between the balancing adjustment member 53 and the balancing base 54 will be reduced, and the axial force generated by the liquid in the balancing chamber 51 flowing through the balancing gap 52 will increase, thereby balancing the residual axial force.

[0072] In one embodiment, please refer to Figure 3 , a second liquid inlet 55 is formed on the balancing base 54 .

[0073] In one embodiment, please refer to Figure 3 The balance adjustment member 53 and the balance base 54 are both located at one end of the rotor component 43 away from the pump housing 2 along the axial direction of the rotating shaft 1 .

[0074] In one embodiment, please refer to Figure 3 The rotor component 43 includes a rotor support 431 and a rotor body 432. The rotor support 431 is sleeved on the rotating shaft 1, and the rotor body 432 is sleeved on the rotor support 431. One end of the rotor body 432 facing the pump housing 2 along the axial direction of the rotating shaft 1 abuts against the rotor support 431, and the other end of the rotor body 432 protrudes from the end surface of the rotor support 431 and abuts against the balance adjustment member 53. In such a structural form, the rotor support 431 limits one end of the rotor body 432 along the axial direction of the rotating shaft 1 to a certain extent. Since the other end of the rotor body 432 protrudes from the end surface of the rotor support 431 and abuts against the balance adjustment member 53, the balance adjustment member 53 and the rotor support 431 can limit the position of the rotor body 432 on the rotor support 431 along the axial direction of the rotating shaft 1 to a certain extent.

[0075] In one embodiment, please refer to Figure 3 The horizontal pump also includes a limit assembly 7 and a bearing assembly 6, which are sleeved on the rotating shaft 1. The limit assembly 7 abuts against one end of the rotor bracket 431 toward the pump housing 2, and the bearing assembly 6 abuts against one end of the balance adjustment member 53 away from the pump housing 2 along the axial direction of the rotating shaft 1 to limit the axial movement of the balance adjustment member 53 and the rotor component 43 relative to the rotating shaft 1. With such a structural form, since one end of the rotor body 432 along the axial direction of the rotating shaft 1 toward the pump casing 2 abuts against the rotor bracket 431, the other end of the rotor body 432 protrudes from the end face of the rotor bracket 431 and abuts against the balancing adjustment member 53, the limiting assembly 7 abuts against the end of the rotor bracket 431 toward the pump casing 2, and the bearing assembly 6 abuts against the end of the balancing adjustment member 53 along the axial direction of the rotating shaft 1 away from the pump casing 2, it can limit the axial position of the rotor component 43 and the balancing adjustment member 53 relative to the rotating shaft 1, and realize the axial positioning of the rotor component 43 and the balancing adjustment member 53. The balancing adjustment member 53 not only plays a role in axially positioning the rotor component 43, but also can cooperate with the balancing base 54 to balance the residual axial force.

[0076] In one embodiment, please refer to Figure 3 The bearing assembly 6 includes a first sleeve 61 and a first bearing 62. The first sleeve 61 is sleeved on the rotating shaft 1, and the first bearing 62 is sleeved on the first sleeve 61. The first bearing 62 is installed on the balancing base 54. In this structural form, the first bearing 62 is installed in the balancing base 54. The first bearing 62 is installed through the balancing base 54, and there is no need to set an additional bearing seat for installing the first bearing 62, which simplifies the structure, reduces the installation error caused by the complex structure, improves the reliability of operation, and reduces the equipment purchase and operation and maintenance costs.

[0077] In one embodiment, the first bearing 62 is a water-lubricated bearing.

[0078] Understandably, see Figure 3The first bearing 62 is a water-lubricated bearing, and water flows between the first bearing 62 and the first sleeve 61 to lubricate the first bearing 62 .

[0079] In one embodiment, please refer to Figure 3 The liquid flows to the balance chamber 51 through the second liquid inlet 55 and between the first bearing 62 and the first sleeve 61 .

[0080] In one embodiment, please refer to Figure 3 The limiting assembly 7 includes a second sleeve 71 and a second bearing 72. The second sleeve 71 is sleeved on the rotating shaft 1, the second bearing 72 is sleeved on the second sleeve 71, and the second bearing 72 is installed on the pump housing 2. In this structural form, the second bearing 72 is installed through the pump housing 2, and there is no need to set an additional bearing seat for installing the second bearing 72, which simplifies the structure, reduces the installation error caused by the complex structure, improves the reliability of operation, and reduces the equipment purchase and operation and maintenance costs.

[0081] In one embodiment, the second bearing 72 is a water-lubricated bearing.

[0082] Understandably, see Figure 3 The second bearing 72 is a water-lubricated bearing, and water flows between the second bearing 72 and the second sleeve 71 to lubricate the second bearing 72 .

[0083] In one embodiment, please refer to Figure 3 The liquid in the rotor cavity 412 flows to the liquid inlet cavity 101 of the pump housing 2 through the second bearing 72 and the second sleeve 71 .

[0084] In one embodiment, please refer to Figure 3 One end of the first sleeve 61 abuts against the side of the balancing adjustment member 53 away from the rotor component 43, and one end of the second sleeve 71 abuts against the end of the rotor support 431 facing the pump housing 2, so as to limit the axial movement of the balancing adjustment member 53 and the rotor component 43 relative to the rotating shaft 1. In this structural form, the axial positioning of the balancing adjustment member 53 and the rotor component 43 is achieved by the first sleeve 61 abutting against the balancing adjustment member 53 and the second sleeve 71 abutting against the rotor support 431.

[0085] In one embodiment, please refer to Figure 3 The horizontal pump further includes a locking nut. An end of the first sleeve 61 that is axially away from the balance adjustment member 53 along the rotating shaft 1 is provided with a locking nut that abuts against the first sleeve 61 .

[0086] In one embodiment, please refer to the figure, one end of the second sleeve 71 away from the rotor support 431 abuts against the pumping assembly 3.

[0087] In one embodiment, please refer to Figure 1 to Figure 4The second sleeve 71 includes at least two sub-sleeves 711, one of which abuts against the rotor support 431, and the other abuts against the pumping assembly 3, and two adjacent sub-sleeves 711 abut against each other. Such a structure prevents the second sleeve 71 from being too long.

[0088] In one embodiment, please refer to Figure 1 to Figure 3 There are two limit assemblies 7 , and at least one limit assemblies 7 is respectively provided at both ends of the pumping assembly 3 along the axial direction of the rotating shaft 1 .

[0089] In one embodiment, please refer to Figure 1 to Figure 3 The limit assemblies 7 at both ends are arranged symmetrically.

[0090] In one embodiment, please refer to Figure 1 and Figure 3 There are two bearing assemblies 6 , and at least one bearing assembly 6 is disposed at each of the two ends of the pumping assembly 3 along the axial direction of the rotating shaft 1 .

[0091] In one embodiment, please refer to Figure 1 and Figure 3 The bearing assemblies 6 at both ends are arranged symmetrically.

[0092] In one embodiment, please refer to Figure 1 to Figure 3 , the pumping assembly 3 is an impeller.

[0093] In one embodiment, please refer to Figure 1 to Figure 3 , the pumping assembly 3 is a double-suction impeller.

[0094] It is understandable that the balancing mechanism 5 is not necessarily limited to the matching mode in which the balancing chamber 51 and the balancing gap 52 are adjustable.

[0095] In one embodiment, please refer to Figure 1 and Figure 2 , the balancing mechanism 5 is a third bearing sleeved on the rotating shaft 1, and the third bearing is used to bear radial force and axial force to balance the axial force of the rotating shaft 1. In such a structural form, the pumping assembly 3 and the power assembly 4 are installed on the rotating shaft 1 of the horizontal pump, and the third bearing sleeved on the rotating shaft 1 needs to bear a certain radial force. The balancing mechanism 5 is used to balance the residual axial force. When the balancing mechanism 5 is the third bearing, the third bearing needs to be able to bear axial force so that the third bearing can be used to balance the residual axial force. Therefore, the third bearing is used to bear radial force and axial force, so that the third bearing can not only better bear the load transmitted to the rotating shaft 1 by the pumping assembly 3 and the power assembly 4 in the radial direction, but also balance the residual axial force.

[0096] In one embodiment, the third bearing is a water-lubricated bearing.

[0097] Understandably, see Figure 1 and Figure 2 The third bearing is a water-lubricated bearing, and liquid flows between the third bearing and the second sleeve 71 to lubricate the third bearing.

[0098] In one embodiment, please refer to Figure 2 The liquid in the rotor cavity 412 flows to the liquid inlet cavity 101 of the pump housing 2 through the third bearing and the second sleeve 71 .

[0099] In one embodiment, please refer to Figure 1 and Figure 2 , the third bearing is installed on the pump housing 2. In this structural form, the third bearing is installed through the pump housing 2, and there is no need to set up an additional bearing seat for installing the third bearing, which simplifies the structure, reduces the installation error caused by the complex structure, improves the reliability of operation, and reduces the equipment purchase and operation and maintenance costs.

[0100] In one embodiment, please refer to Figure 1 and Figure 2 The third bearing includes a radial bushing 56 and an axial bushing 57 connected to each other. The radial bushing 56 is used to bear radial force, and the axial bushing 57 is used to bear axial force. The axial bushing 57 is located at one end of the radial bushing 56, and the axial bushing 57 surrounds the radial bushing 56. The radial bushing 56 is at least partially located on the pump housing 2, and the axial bushing 57 abuts against the pump housing 2 and the power assembly 4 respectively. With such a structural form, when the rotating shaft 1 drives the drive assembly to move along the axial direction of the rotating shaft 1 under the action of the residual axial force, the axial bushing 57 of the third bearing abutting against the drive assembly will apply a reaction force to the corresponding drive assembly, thereby achieving the purpose of balancing the residual axial force.

[0101] In one embodiment, please refer to Figure 1 and Figure 2 The axial bearing 57 abuts against the pump housing 2 and the rotor component 43 respectively.

[0102] In one embodiment, please refer to Figure 1 and Figure 2 The axial bearing 57 is respectively in contact with the pump housing 2 and the rotor support 431.

[0103] In one embodiment, please refer to Figure 1 and Figure 2 The limiting assembly 7 may not be provided with the second bearing 72 . The limiting assembly 7 includes a second sleeve 71 , the second sleeve 71 is sleeved on the rotating shaft 1 , and the third bearing is sleeved on the second sleeve 71 .

[0104] In one embodiment, please refer to Figure 1 and Figure 2 When the balancing mechanism 5 is the third bearing, the horizontal pump further comprises a stopper 103, which abuts against an end of the rotor body 432 away from the third bearing.

[0105] In one embodiment, please refer to Figure 2 The locking nut is sleeved on the rotating shaft 1 and abuts against a side of the stopper 103 away from the rotor body 432 .

[0106] In one embodiment, please refer to Figure 1 The bearing assembly 6 abuts against the side of the stopper 103 away from the rotor body 432 , and the locking nut is sleeved on the rotating shaft 1 and abuts against the side of the bearing assembly 6 away from the stopper 103 .

[0107] In one embodiment, please refer to Figure 1 The first sleeve 61 abuts against the side of the stopper 103 away from the rotor body 432 , and the locking nut is sleeved on the rotating shaft 1 and abuts against the side of the first sleeve 61 away from the stopper 103 .

[0108] In one embodiment, please refer to Figure 1 to Figure 3 The rotor component 43 has a mounting hole 434. The diameter of the mounting hole 434 of the corresponding rotor component 43 gradually decreases along the direction of the pump housing 2 pointing to the corresponding rotor component 43. The rotating shaft 1 passes through the mounting hole 434. The rotating shaft 1 has a tapered mounting portion 11 adapted to the mounting hole 434. The mounting portion 11 is at least partially located in the mounting hole 434. In such a structural form, the substantially tapered mounting hole 434 cooperates with the substantially tapered mounting portion 11. On the one hand, the rotor component 43 can be more firmly mounted on the rotating shaft 1. On the other hand, since the mounting hole 434 of the rotor component 43 and the mounting portion 11 of the rotating shaft 1 are both tapered, it is convenient to disassemble and assemble the rotor component 43 and the rotating shaft 1, which is beneficial to the maintenance of the rotor component 43.

[0109] It can be understood that the taper of the mounting hole 434 of the rotor component 43 and the taper of the mounting portion 11 of the rotating shaft 1 are both relatively small, and the two form a micro-taper fit.

[0110] In one embodiment, the mounting hole 434 is formed in the rotor bracket 431 .

[0111] In one embodiment, please refer to Figure 1 to Figure 3 The horizontal pump further includes a first support leg 91, which is connected below the power assembly 4. The first support leg 91 is used to carry the power assembly 4, and the power assembly 4 corresponds to the first support leg 91 one by one. In this structural form, the first support leg 91 supports the power assembly 4, which can reduce the shaking of the power assembly 4 during operation, reduce vibration and noise, and improve the overall stability of the horizontal pump.

[0112] In one embodiment, please refer to Figure 1 to Figure 3 The first supporting feet 91 at both ends are arranged symmetrically.

[0113] In one embodiment, please refer to Figure 1 to Figure 3 ,as well as Figure 5 and Figure 6 The horizontal pump further includes a second supporting foot 92 and a third supporting foot 93 , and the second supporting foot 92 and the third supporting foot 93 are both connected to the bottom of the pump casing 2 for supporting the pump casing 2 .

[0114] In one embodiment, please refer to Figure 5 The number of the second supporting feet 92 is at least two, the number of the third supporting feet 93 is at least two, and the pump housing 2 is respectively provided with at least one second supporting foot 92 and at least one third supporting foot 93 on both sides along the preset direction, and the preset direction is respectively cross-set with the axial direction and the up and down direction of the rotating shaft 1.

[0115] In one embodiment, please refer to Figure 5 The preset directions are respectively perpendicular to the axial direction and the up-down direction of the rotating shaft 1.

[0116] In one embodiment, please refer to Figure 5 The second supporting feet 92 on both sides are located between the third supporting feet 93 on both sides along the preset direction.

[0117] In one embodiment, please refer to Figure 5 The second supporting feet 92 on both sides are arranged symmetrically.

[0118] In one embodiment, please refer to Figure 5 The third supporting feet 93 on both sides are arranged symmetrically.

[0119] In one embodiment, please refer to Figure 1 to Figure 3 , Figure 5 as well as Figure 6 The number of the first supporting legs 91 is two, the number of the second supporting legs 92 is two, and the number of the third supporting legs 93 is two.

[0120] In one embodiment, please refer to Figure 1 to Figure 3 , Figure 5 as well as Figure 6 The pump housing 2 includes an upper housing 21 and a lower housing 22, and the upper housing 21 is detachably connected to the lower housing 22. In this structural form, the components in the pump housing 2 can be conveniently maintained by detachably connecting the upper housing 21 and the lower housing 22.

[0121] In one embodiment, please refer to Figure 1 to Figure 3 , Figure 5 as well as Figure 6 The upper shell 21 includes a first main shell 213 and a first flange 211 . The number of the first flanges 211 is at least two. At least one first flange 211 is provided at both ends of the first main shell 213 along the axial direction of the rotating shaft 1 .

[0122] In one embodiment, please refer to Figure 1 to Figure 3 , Figure 5 as well as Figure 6The lower shell 22 includes a second main shell 222 and a second flange 221 . The number of the second flanges 221 is at least two. At least one second flange 221 is provided at both ends of the second main shell 222 along the axial direction of the rotating shaft 1 .

[0123] In one embodiment, please refer to Figure 1 to Figure 3 , Figure 5 as well as Figure 6 The first flange 211 and the second flange 221 located at the same end of the pumping assembly 3 along the axial direction of the rotating shaft 1 are covered at the opening of the corresponding rotor cavity 412. Such a structural form can prevent the liquid in the rotor cavity 412 from flowing out of the opening of the rotor cavity 412 to the outside of the housing 41 or the pump housing 2 to a certain extent.

[0124] In one embodiment, the first flange 211 is integrally connected to the first main shell 213 , and the second flange 221 is integrally connected to the second main shell 222 .

[0125] In one embodiment, refer to 5 , the second supporting foot 92 is connected between the second flanges 221 at both ends.

[0126] In one embodiment, the first flange 211 and the first main shell 213 are integrally formed or welded.

[0127] In one embodiment, the second flange 221 and the second main shell 222 are integrally formed or welded.

[0128] It should be noted that the first flange 211 is connected to the first main shell 213 by a detachable connection method such as screws or bolts, and the second flange 221 is connected to the second main shell 222 by a detachable connection method such as screws or bolts, which does not fall into the category of integral connection.

[0129] It should be noted that the first flange 211 is connected to the first main shell 213 by riveting, and the second flange 221 is connected to the second main shell 222 by riveting. Since the first flange 211 and the first main shell 213 are still two independent components, the second flange 221 and the second main shell 222 are still two independent components and do not fall into the category of integral connection.

[0130] In one embodiment, please refer to Figure 5 and Figure 6 The upper shell 21 further includes a reinforcing rib 212, and the reinforcing rib 212 is connected between the first flanges 211 at both ends. Such a structural form is conducive to improving the strength of the first flange 211 and preventing the first flange 211 from deforming.

[0131] In one embodiment, please refer to Figure 5 and Figure 6The lower shell 22 is formed with a liquid supply port 104 and a liquid outlet 105 . The liquid supply port 104 is communicated with the liquid inlet cavity 101 in the pump shell 2 , and the liquid outlet 105 is communicated with the liquid outlet cavity 102 in the pump shell 2 .

[0132] The various embodiments / implementations provided in this application can be combined with each other without causing any contradiction.

[0133] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A horizontal pump, characterized in that: include: Rotating shaft; A pump housing, sleeved on the rotating shaft; A pumping assembly is located in the pump housing, and the pumping assembly is sleeved on the rotating shaft and rotates with the rotating shaft to transport the material in the pump housing; A power assembly, wherein the number of the power assemblies is two, one power assembly is respectively arranged at both ends of the rotating shaft to drive the rotating shaft to rotate, and the pump housing is between the power assemblies at the two ends; The material is liquid, the power assembly is an electromagnetic power assembly, the electromagnetic power assembly includes a housing connected to the pump housing, and a stator component and a rotor component assembled in the housing and isolated from each other, the housing is in communication with the pump housing so that the liquid can infiltrate the rotor component; The electromagnetic power assembly further includes an isolation sleeve, which is at least partially disposed in the housing to separate the space in the housing into a stator cavity for accommodating the stator component and a rotor cavity for accommodating the rotor component, the stator cavity surrounds the rotor cavity, and the liquid is partially located in the rotor cavity to infiltrate the rotor component; The horizontal pump further comprises at least two balancing mechanisms, and at least one of the balancing mechanisms is respectively arranged at both ends of the rotating shaft to balance the axial force; The balancing mechanism comprises a balancing chamber and a balancing gap connected to the balancing chamber, wherein the balancing gap can change with the axial force, and the liquid in the balancing chamber flows out through the balancing gap to balance the axial force of the rotating shaft, and the balancing chamber and the balancing gap are located in the rotor cavity; The balancing mechanism has a second liquid inlet communicated with the balancing chamber, and the liquid flowing from the second liquid inlet to the pump housing through the balancing chamber, the balancing gap and the rotor component is used to take away the heat released by the rotor component and the stator component to cool the stator component and the rotor component, and the second liquid inlet is communicated with the liquid outlet cavity of the pump housing or an external circulating cooling water source; The balancing mechanism includes a balancing adjustment member and a balancing base, wherein the balancing adjustment member is sleeved on the rotating shaft to move with the rotating shaft, the balancing base and the balancing adjustment member enclose a balancing chamber and a balancing gap connected to the balancing chamber, the balancing base is connected to the shell, the balancing base can move axially relative to the rotating shaft, and the second liquid inlet is formed on the balancing base.

2. The horizontal pump according to claim 1, characterized in that: The power assemblies at both ends are symmetrically arranged.

3. The horizontal pump according to claim 1, characterized in that: The rotating shaft directly connects the pumping assembly and the power assembly.

4. The horizontal pump according to claim 1, characterized in that: The housing has a cooling water jacket surrounding the outside of the stator cavity, and the cooling water jacket is isolated from the stator cavity; The cooling water jacket is respectively connected to the liquid inlet cavity of the pump housing and the liquid outlet cavity of the pump housing to cool the stator component and the rotor component, or the cooling water jacket is connected to an external circulating cooling water source to cool the stator component and the rotor component; The rotor cavity is respectively communicated with the liquid inlet cavity of the pump housing and the liquid outlet cavity of the pump housing to cool the rotor component and the stator component.

5. The horizontal pump according to claim 1, characterized in that: The rotor component includes a rotor bracket sleeved on the rotating shaft and a rotor body sleeved on the rotor bracket, the rotor body abuts against the rotor bracket at one end thereof facing the pump housing along the axial direction of the rotating shaft, and the other end of the rotor body protrudes from the end surface of the rotor bracket and abuts against the balancing adjustment member; the horizontal pump also includes a limit assembly and a bearing assembly sleeved on the rotating shaft, the limit assembly abuts against one end of the rotor bracket facing the pump housing, and the bearing assembly abuts against one end of the balancing adjustment member away from the pump housing along the axial direction of the rotating shaft, so as to limit the balancing adjustment member and the rotor component from moving axially relative to the rotating shaft.

6. The horizontal pump according to claim 5, characterized in that: The bearing assembly includes a first sleeve mounted on the rotating shaft and a first bearing mounted on the first sleeve, the first bearing is installed on the balancing base, the limiting assembly includes a second sleeve mounted on the rotating shaft and a second bearing mounted on the second sleeve, the second bearing is installed on the pump housing; wherein, the first sleeve abuts against one end of the balancing adjustment member along the axial direction of the rotating shaft away from the pump housing, and the second sleeve abuts against one end of the rotor bracket along the axial direction of the rotating shaft toward the pump housing, so as to limit the axial movement of the balancing adjustment member and the rotor component relative to the rotating shaft.

7. The horizontal pump according to claim 1, characterized in that: The balancing mechanism is a third bearing sleeved on the rotating shaft, and the third bearing is used to bear radial force and axial force to balance the axial force of the rotating shaft.

8. The horizontal pump according to claim 7, characterized in that: The third bearing includes a radial bearing and an axial bearing that are connected to each other. The radial bearing is used to bear radial force, and the axial bearing is used to bear axial force. The axial bearing is located at one end of the radial bearing and surrounds the radial bearing. The radial bearing is at least partially installed on the pump housing, and the axial bearing is respectively abutted against the pump housing and the powertrain.

9. The horizontal pump according to claim 1, characterized in that: The rotor component has a mounting hole, which points along the pump housing in the direction corresponding to the rotor component. The diameter of the mounting hole corresponding to the rotor component gradually decreases. The rotating shaft passes through the mounting hole. The rotating shaft has a conical mounting portion that is adapted to the mounting hole, and the mounting portion is at least partially located in the mounting hole.

10. The horizontal pump according to any one of claims 1 to 3, characterized in that: The horizontal pump further includes a first supporting foot connected below the power assembly, the first supporting foot being used to support the power assembly, and the power assembly corresponds to the first supporting foot in a one-to-one manner.

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