Pump with aligning function

Abstract

The utility model discloses a pump with an aligning function, which comprises a connecting pump shell, a connecting shaft, a pump bearing, a bearing seat, a front bearing and a baffle ring plate, the connecting shaft is transversely inserted into the connecting pump shell in a penetrating manner, the surface of the connecting shaft is sleeved with the pump bearing, a sealing lantern ring is arranged between the pump bearing and the connecting shaft, and the front bearing is sleeved with the sealing lantern ring. The surface of the connecting shaft on one side of the pump bearing is detachably connected with a bearing seat; the surface, located on one side of the pump bearing, of the connecting shaft is further sleeved with a front bearing, and the surface, connected with the pump shell, of the outer side of the front bearing is connected with a baffle ring plate for limiting the front bearing from moving inwards. According to the utility model, the bearing assembly is removed during design, the precision of the gap between the pump bearing assembly and the bearing seat is controlled within the range of 0-0.016 [mu] m, the accumulated tolerance is reduced, the operation stability of the connected pump shell is improved, and meanwhile, the baffle ring position is additionally arranged at the position of the front bearing, so that the bearings are prevented from moving inwards and falling off, and the stability of the pump is improved.

Description

Technical Field

[0001] This utility model relates to the field of pump technology, specifically to a pump with adjustment function. Background Technology

[0002] HG pumps are now quite common; please refer to [link / reference] for details. Figure 1 ,like Figure 1 The original pump bearing assembly, which is axially adjustable, will result in a clearance of 0.016-0.046μm between the pump bearing and the bearing housing. Combined with the clearance of 0-0.016μm between the bearing and the bearing assembly, this can easily lead to cumulative tolerances, causing the pump to vibrate more than 0.1μm during operation, resulting in oscillations in the equipment during use. Utility Model Content

[0003] The purpose of this utility model is to provide a pump with a correction function to solve the problem mentioned in the background art that the clearance between the pump bearing and the bearing housing is 0.016-0.046μm, plus the clearance between the bearing and the bearing housing is 0-0.016μm. This can easily lead to cumulative tolerance, causing the pump to vibrate more than 0.1μm during operation, resulting in oscillation during the use of the equipment.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A pump with a regulating function, comprising a connecting pump housing, a connecting shaft, a pump bearing, a bearing seat, a front bearing, and a retaining ring plate: the connecting pump housing is transversely inserted with the connecting shaft, the surface of the connecting shaft is fitted with the pump bearing, a sealing ring is provided between the pump bearing and the connecting shaft, and a bearing seat is detachably connected to the surface of the connecting shaft on one side of the pump bearing; a front bearing is also fitted to the surface of the connecting shaft on one side of the pump bearing, a retaining ring plate is connected to the surface of the connecting pump housing outside the front bearing to restrict the inward movement of the front bearing, a sealing structure is provided between the pump bearing and the retaining ring plate, the sealing structure is fitted onto the connecting shaft, the sealing structure includes a sealing ring tightly fitted onto the outer wall of the connecting shaft, the sealing ring is made of rubber, a sealing felt is provided on the outside of the sealing ring, and a sealing oil seal is filled between the sealing felt and the sealing ring.

[0005] Preferably, both the bearing housing and the connecting pump housing are provided with locking screw grooves, and locking bolts are threaded into the locking screw grooves. The locking bolts are used to fasten the bearing housing and the connecting pump housing.

[0006] Preferably, the bottom of the connecting pump housing is connected to a base, and the base is provided with a screw groove for fixing the connecting pump housing.

[0007] Preferably, the end of the connecting pump housing away from the sealing structure is connected to a connecting plate, and the length of the connecting plate is greater than the length of the connecting pump housing.

[0008] Preferably, the connecting plate has a bolt groove, and the bolt groove and the connecting plate are integrally formed.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This type of pump with adjustment function not only reduces the cumulative tolerance and increases the stability of the pump casing during operation by removing the bearing housing during the design, thus controlling the gap between the pump bearing and the bearing seat within the range of 0-0.016μm, but also adds a retaining ring plate at the position of the front bearing to prevent the bearing from moving inward and falling off, thereby improving the pump's stability. Furthermore, a bolt groove is designed on the connecting plate, and during use, the bolt groove is used to connect the pump to the object to be fixed, and positioning adjustment is performed during bolt docking. Attached Figure Description

[0010] Figure 1 A schematic diagram of the existing HG pump structure;

[0011] Figure 2 This is a schematic diagram of a pump structure with adjustment function according to the present invention;

[0012] Figure 3 For the present utility model Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0013] In the picture:

[0014] 1. Connecting pump casing; 11. Baffle plate; 12. Front bearing; 13. Base; 14. Connecting plate; 2. Sealing structure; 21. Sealing oil seal; 22. Limiting groove; 23. Sealing felt; 24. Sealing ring; 3. Connecting shaft; 4. Locking bolt; 5. Bearing seat; 6. Sealing collar; 7. Pump bearing; 8. Bolt groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1: As Figure 1-3As shown, a pump with adjustment function includes a connecting pump casing 1, a connecting shaft 3, a pump bearing 7, a bearing housing 5, a front bearing 12, and a retaining ring plate 11. The connecting pump casing 1 is transversely inserted with the connecting shaft 3, which is made of high-strength stainless steel and is directly connected to the motor to form a rigid transmission system. The connecting shaft 3 also has an impeller structure. The connecting pump casing 1 adopts a volute design, and the precision-cast flow channel realizes efficient kinetic energy conversion. The design includes a guide vane device: multi-stage guide vanes optimize the flow direction of the medium. A cooling water circulation channel is set inside the connecting pump casing 1 for self-cooling treatment. In use, the motor drives the connecting shaft 3 to the rated speed, and the coupling transmits torque to the impeller system for operation. The high-speed rotation of the impeller generates a centrifugal force field (up to 0.5-1.2MPa). The internal medium is sucked in along the direction of the connecting shaft 3, and after being radially accelerated by the impeller, it enters the diffuser.

[0017] A pump bearing 7 is fitted onto the surface of the connecting shaft 3. A sealing ring 6 is provided between the pump bearing 7 and the connecting shaft 3. The sealing ring 6 is used to increase the tightness between the pump bearing 7 and the connecting pump housing 1. A bearing seat 5 is detachably connected to the surface of the connecting shaft 3 on one side of the pump bearing 7. The original pump bearing assembly can be axially adjusted. Figure 1 The 0.016-0.046 μm clearance between the pump bearing housing and bearing seat 5, combined with the 0-0.016 μm clearance between the pump bearing 7 and bearing housing, easily creates cumulative tolerances, causing vibrations exceeding 0.1 μm to occur in the connected pump casing 1 during operation. Figure 2 As shown, by removing the bearing assembly inside the connecting pump housing 1, the clearance between the pump bearing 7 and the bearing seat 5 is controlled within the range of 0-0.016μm, reducing cumulative tolerance and increasing the stability of the connecting pump housing 1 during operation; a front bearing 12 is also sleeved on the surface of the connecting shaft 3 located on one side of the pump bearing 7, and a retaining ring plate 11 is connected to the surface of the connecting pump housing 1 outside the front bearing 12 to restrict the inward movement of the front bearing 12, while at the same time... Figure 2 A retaining ring plate 11 was added at the position of the front bearing 12 to prevent the connecting shaft 3 from moving inward and falling off, thereby improving the overall stability of the connecting pump housing 1 during use.

[0018] The overall effect of this embodiment is that, during use, the connecting shaft 3 is made of high-strength stainless steel and directly connected to the motor to form a rigid transmission system. Furthermore, the connecting shaft 3 should also have an impeller structure. The connecting pump casing 1 adopts a volute design, with precision-cast flow channels to achieve efficient kinetic energy conversion. A guide vane device is designed: multi-stage guide vanes optimize the medium flow direction. A cooling water circulation channel is set inside the connecting pump casing 1 for self-cooling. During use, the motor drives the connecting shaft 3 to its rated speed, and the coupling transmits torque to the impeller system for operation. The high-speed rotation of the impeller generates a centrifugal force field (up to 0.5-1.2 MPa), drawing in the internal medium along the direction of the connecting shaft 3. After radial acceleration by the impeller, the medium enters the diffuser. During production, if... Figure 2 As shown, by removing the bearing assembly inside the pump housing 1, the clearance between the pump bearing 7 and the bearing seat 5 is controlled within the range of 0-0.016μm, reducing cumulative tolerance and increasing the stability of the pump housing 1 during operation. Figure 2 A retaining ring plate 11 was added at the position of the front bearing 12 to prevent the connecting shaft 3 from moving inward and falling off, thereby improving the overall stability of the connecting pump housing 1 during use.

[0019] Example 2: Figure 2-3 As shown, a pump with adjustment function includes a sealing structure 2, a pump bearing 7, a retaining ring plate 11, a connecting shaft 3, a sealing oil seal 21, a limiting groove 22, a sealing felt 23, and a sealing ring 24. The sealing structure 2 is provided between the pump bearing 7 and the retaining ring plate 11. The sealing structure 2 is sleeved on the connecting shaft 3 and is used to seal the gap between the connecting shaft 3 and the connecting pump housing 1.

[0020] The sealing structure 2 includes a sealing ring 24 that fits snugly against the outer wall of the connecting shaft 3. The sealing ring 24 is made of rubber to enhance the sealing effect.

[0021] To further enhance the sealing effect, a sealing felt 23 is provided on the outside of the sealing ring 24, and a sealing oil seal 21 is filled between the sealing felt 23 and the sealing ring 24.

[0022] The effect achieved by the entire second embodiment is that the sealing ring 24 is fitted onto the outer wall of the connecting shaft 3, and the sealing felt 23 and sealing oil seal 21 are designed around the sealing ring 24 to increase the sealing between the connecting shaft 3 and the connecting pump housing 1.

[0023] Example 3: Figure 2-3 As shown, a pump with adjustment function includes a bearing housing 5, a connecting pump housing 1, a locking bolt 4, a base 13, a connecting plate 14, and a bolt groove 8. In order to lock and limit the position between the bearing housing 5 and the connecting pump housing 1, a locking bolt groove is provided on both the bearing housing 5 and the connecting pump housing 1. The locking bolt 4 is threaded into the locking bolt groove, and the locking bolt 4 is used to fasten the position of the bearing housing 5 and the connecting pump housing 1.

[0024] A base 13 is connected to the bottom of the pump housing 1, and a screw groove is provided in the base 13 for fixing the pump housing 1.

[0025] A connecting plate 14 is connected to the end of the pump housing 1 that is away from the sealing structure 2. The length of the connecting plate 14 is greater than the length of the pump housing 1.

[0026] The connecting plate 14 has a bolt groove 8. The bolt groove 8 and the connecting plate 14 are integrally molded. In use, the bolt groove 8 inside the connecting plate 14 is connected to the object to be fixed by bolts. Positioning adjustment is performed when the bolts are connected. The fixed object is not unique. It should refer to the motor or pipeline connected to the connecting pump housing 1 during use.

[0027] Working Principle: When using this pump with adjustment function, an external power supply is required. During use, the designated end of connecting shaft 3 is connected to the motor. Firstly, in specific applications, connecting shaft 3 is made of high-strength stainless steel and directly connects to the motor to form a rigid transmission system. Furthermore, an impeller structure should be present outside connecting shaft 3. The connecting pump casing 1 adopts a volute design, with precision-cast flow channels achieving efficient kinetic energy conversion. A guide vane device is designed: multi-stage guide vanes optimize the medium flow direction. A cooling water circulation channel is set inside the connecting pump casing 1 for self-cooling. During use, the motor drives connecting shaft 3 to its rated speed, and the coupling transmits torque to the impeller system for operation. The high-speed rotation of the impeller generates a centrifugal force field (up to 0.5-1.2 MPa). The internal medium is drawn in along the direction of connecting shaft 3, radially accelerated by the impeller, and then enters the diffuser. During production, if... Figure 2 As shown, by removing the bearing assembly inside the pump housing 1, the clearance between the pump bearing 7 and the bearing seat 5 is controlled within the range of 0-0.016μm, reducing cumulative tolerance and increasing the stability of the pump housing 1 during operation. Figure 2 A retaining ring plate 11 was added at the position of the front bearing 12 to prevent the connecting shaft 3 from moving inward and falling off, thereby improving the overall stability of the pump housing 1 during use and ultimately completing the operation of the pump with adjustment function.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pump having a regulating function, characterized by comprising: Including the connecting pump shell, the connecting pump shell is inserted with the connecting shaft transversely, the surface of the connecting shaft is sleeved with the pump bearing, the sealing ring is arranged between the pump bearing and the connecting shaft, and the surface of the connecting shaft on one side of the pump bearing is detachably connected with the bearing seat; The surface of the connecting shaft on one side of the pump bearing is also sleeved with the front bearing, the surface of the connecting pump shell outside the front bearing is connected with the stop ring plate for limiting the inward movement of the front bearing, the sealing structure is arranged between the pump bearing and the stop ring plate, the sealing structure is sleeved on the connecting shaft, the sealing structure comprises a sealing ring which is tightly sleeved on the outer wall of the connecting shaft, the sealing ring is made of rubber material, the outer side of the sealing ring is provided with sealing felt, and the sealing felt and the sealing ring are filled with sealing oil seal.

2. The pump with the regulating function according to claim 1, characterized in that: The bearing seat and the connecting pump shell are provided with locking screw grooves, and locking bolts are threadedly connected in the locking screw grooves, the locking bolts are used for fastening the positions of the bearing seat and the connecting pump shell.

3. The pump with the regulating function according to claim 2, characterized in that: The bottom of the connecting pump shell is connected with the base, and the base is provided with a screw groove for fixing the connecting pump shell.

4. The pump with the regulating function according to claim 3, characterized in that: The end of the connecting pump shell away from the sealing structure is connected with a connecting plate, and the length of the connecting plate is greater than the length of the connecting pump shell.

5. The pump with the regulating function according to claim 4, characterized in that: The connecting plate is provided with a bolt groove, and the bolt groove and the connecting plate are integrally formed.

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