Screw pump supported and positioned by bearing

Abstract

The utility model discloses a screw pump supported and positioned by a bearing, which relates to the technical field of screw pumps and comprises a base frame, a driving motor, a protective shell and a pump body are sequentially arranged at the top of the base frame and fixedly connected with one another, and a transmission column is arranged on an output shaft of the driving motor and penetrates through the inside of the protective shell. A supporting seat is jointly arranged between the pump body and the protective shell, a supporting bearing is arranged on the inner surface of the supporting seat, heat is transmitted to a heat dissipation barrel through heat conduction strips, heat is transmitted into a liquid material through heat dissipation grooves formed in the heat dissipation barrel, and therefore part of heat of the supporting bearing can be effectively absorbed, and the heat dissipation efficiency is improved. Through the hollow supporting bearing and the vent holes formed in the supporting bearing, air flow around the supporting bearing can be accelerated, heat generated in the operation process of the supporting bearing can be effectively exhausted, the fatigue and aging problems of a bearing material can be effectively solved, and therefore the strength and durability of the bearing can be improved, and the service life of the bearing is prolonged. Therefore, the working performance of the screw pump can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw pumps, in particular to a bearing-supported and positioned screw pump. Background Art

[0002] A screw pump is a pump that uses the rotation of a screw blade to make water rise axially in a spiral shape. It consists of a shaft, a screw blade, and a housing. When pumping water, the pump is placed obliquely in the water so that the inclination angle of the pump main shaft is smaller than that of the screw blade. The lower end of the screw blade contacts the water. When the prime mover drives the screw pump shaft to rotate through a speed-changing device, water enters the blade and rises along the spiral flow channel until it flows out. It is mostly used in irrigation, drainage, and the lifting of sewage, sludge, etc.

[0003] Existing screw pumps usually use bearings to support and connect to the motor. When the screw pump is in use, the bearings running at high speed will generate a large amount of heat, which will cause the bearing temperature to rise. Excessive temperature will accelerate the fatigue and aging of the bearing material, reduce the strength and durability of the bearing, and then cause the bearing clearance to increase, resulting in an increase in the vibration and noise of the screw pump, thereby reducing its working performance. At the same time, the increase in bearing temperature will accelerate the oxidation and deterioration of the lubricating oil, reduce the lubrication effect, increase the friction and wear inside the bearing, and thus affect the service life of the bearing. Summary of the Utility Model

[0004] In view of this, aiming at the deficiencies of the prior art, the utility model provides a bearing-supported and positioned screw pump to solve the problem that the strength and durability of the existing technology are reduced due to the high-speed operation of the bearing and the inability to dissipate heat efficiently.

[0005] To achieve the above object, the utility model provides the following technical solution: A bearing-supported and positioned screw pump, including a base frame. A driving motor, a protective shell, and a pump body are sequentially arranged on the top of the base frame, and the three are fixedly connected to each other. A transmission column is arranged on the output shaft of the driving motor. The transmission column penetrates inside the protective shell. A support seat is jointly arranged between the pump body and the protective shell. A support bearing is arranged on the inner surface of the support seat. The inner surface of the support bearing is sleeved on the outer surface of the transmission column. A heat dissipation cylinder is arranged on one side of the pump body close to the support bearing. Heat conduction strips are evenly arranged on one side of the heat dissipation cylinder close to the support bearing, and the heat conduction strips are attached to the outer surface of the support bearing. An oil injection assembly is arranged inside the protective shell, which is used to add lubricating oil to the inside of the support bearing.

[0006] Preferably, the inner surface of the support seat is in a hollow state, which is used to increase the heat dissipation area of the support bearing. Ventilation holes are evenly arranged on the support seat, which are used to improve the efficiency of heat dispersion.

[0007] Preferably, heat dissipation grooves are evenly formed on the outer surface of the heat dissipation cylinder, which are used to increase the contact area of the heat dissipation cylinder, and the heat dissipation cylinder is integrally conical, which is used to prevent the material from flowing back into the support bearing.

[0008] Preferably, the oil injection assembly includes an oil inlet pipe arranged on the protective shell, with one end located outside the protective shell. The other end of the oil inlet pipe is provided with an oil outlet pipe, and a sealing plug is slidably arranged on the inner surface of the oil outlet pipe. One side of the sealing plug is provided with a connecting rod, and one end of the connecting rod is provided with an operating ball located outside the oil outlet pipe.

[0009] Preferably, a tension spring is arranged between the sealing plug and one end of the oil outlet pipe, and the tension spring is sleeved on the outer surface of the connecting rod, which is used to provide power for the reset of the sealing plug.

[0010] Preferably, the other end of the oil outlet pipe is provided with a conical nozzle, which is used to reduce the oil outlet diameter of the oil outlet pipe, and the side of the oil outlet pipe close to the conical nozzle is inclined upward, which is used to prevent the hydraulic oil in the oil outlet pipe from flowing out automatically.

[0011] Preferably, a driving plate is arranged on the outer surface of the transmission column, and the driving plate is located inside the protective shell. A limiting groove is formed on the driving plate, and the limiting groove is adapted to the operating ball.

[0012] Preferably, the driving plate is integrally spiral, which is used to enable the sealing plug to slide reciprocally inside the oil outlet pipe.

[0013] Compared with the prior art, the utility model provides a bearing support positioning screw pump, which has the following beneficial effects:

[0014] It is transferred to the heat dissipation cylinder through the heat conduction strip, and the heat is transferred to the liquid material through the heat dissipation grooves formed on the heat dissipation cylinder. Thus, part of the heat of the support bearing can be effectively absorbed. Then, through the hollow support bearing and the ventilation holes arranged thereon, the air flow around the support bearing can be accelerated, and further, the heat generated during the operation of the support bearing can be effectively discharged, and the fatigue and aging problems of the bearing material can be effectively delayed. Therefore, the strength and durability of the bearing can be improved, and thus the working performance of the screw pump can be improved.

[0015] The driving plate on the driving column drives the movement of the operating ball adapted to the spiral groove, so that the connecting rod drives the sealing plug to slide along the inside of the oil outlet pipe. Thus, the lubricating oil in the oil inlet pipe can flow into the oil outlet pipe. Then, with the continuous rotation of the driving plate, the spiral groove is disengaged from the operating ball, and the stretching spring is used to prompt the sealing plug to slide rapidly along the inside of the oil outlet pipe. Furthermore, the lubricating oil can be pushed out from the conical nozzle into the support bearing, ensuring that the bearing is always in a good lubricated state, providing a more stable and reliable lubricating effect for the operation of the support bearing. At the same time, continuously replenishing the lubricating oil can effectively control the temperature of the support bearing. Brief Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the whole of the present utility model;

[0017] Figure 2 It is a front view structural schematic diagram of the whole of the present utility model;

[0018] Figure 3 It is an enlarged structural diagram of the support bearing in the present utility model;

[0019] Figure 4 It is an exploded structural diagram of the heat dissipation cylinder in the present utility model;

[0020] Figure 5 It is a sectional structural schematic diagram of the oil inlet pipe and the oil outlet pipe in the present utility model;

[0021] Figure 6 In the present utility model Figure 5 It is an enlarged structural diagram of part A.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1, base frame; 2, driving motor; 3, protective shell; 4, pump body; 5, driving column; 6, support bearing; 7, support seat; 8, heat dissipation cylinder; 9, heat dissipation groove; 10, heat conducting strip; 11, ventilation hole; 12, oil inlet pipe; 13, oil outlet pipe; 14, sealing plug; 15, connecting rod; 16, operating ball; 17, stretching spring; 18, driving plate; 19, limiting groove. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Embodiment

[0026] Please refer to Figures 1 to 5 As shown, to solve the problems mentioned in the technical solution, an embodiment of the present application provides a bearing-supported positioning screw pump, including a base frame 1. A driving motor 2, a protective shell 3, and a pump body 4 are sequentially arranged on the top of the base frame 1, and the three are fixedly connected to each other. A transmission column 5 is arranged on the output shaft of the driving motor 2. The transmission column 5 penetrates through the inside of the protective shell 3. A support seat 7 is jointly arranged between the pump body 4 and the protective shell 3. A support bearing 6 is arranged on the inner surface of the support seat 7. The inner surface of the support bearing 6 is sleeved on the outer surface of the transmission column 5. A heat dissipation cylinder 8 is arranged on one side of the pump body 4 close to the support bearing 6. Heat conduction strips 10 are evenly arranged on one side of the heat dissipation cylinder 8 close to the support bearing 6, and the heat conduction strips 10 are in contact with the outer surface of the support bearing 6. Among them, the bottom of the support seat 7 is installed on the top of the base frame 1, and the support bearing 6 is engaged with the inner surface of the support seat 7, which is convenient for subsequent workers to replace; an oil injection assembly is arranged inside the protective shell 3, which is used to add lubricating oil to the inside of the support bearing 6, so as to timely add lubricating oil to the support bearing 6, so as to reduce the friction and wear inside the support bearing 6.

[0027] It is worth noting that the inner surface of the support seat 7 is in a hollow state, which is used to increase the heat dissipation area of the support bearing 6. Vent holes 11 are evenly arranged on the support seat 7, which are used to improve the efficiency of heat dispersion. Thus, the heat dissipation effect and efficiency of the support bearing 6 can be effectively improved; in addition, heat dissipation grooves 9 are evenly arranged on the outer surface of the heat dissipation cylinder 8, which are used to increase the contact area of the heat dissipation cylinder 8, and thus it is convenient for heat exchange between the heat dissipation cylinder 8 and the liquid material. Thus, part of the heat of the support bearing 6 can be transferred to the liquid material, and the overall shape of the heat dissipation cylinder 8 is conical, which is used to prevent the material from flowing back into the inside of the support bearing 6, thus avoiding the material from affecting the normal operation of the support bearing 6.

[0028] Further embodiment:

[0029] Please refer to Figures 2 to 6As shown in the figure, the oil filling assembly includes an inlet pipe 12, which is arranged on the protective housing 3, and one end of the inlet pipe 12 is located outside the protective housing 3. The other end of the inlet pipe 12 is provided with an outlet pipe 13. A sealing plug 14 is slidably arranged on the inner surface of the outlet pipe 13. One side of the sealing plug 14 is provided with a connecting rod 15. One end of the connecting rod 15 is provided with an operating ball 16, and the operating ball 16 is located outside the outlet pipe 13. Among them, the inlet pipe 12 and the outlet pipe 13 are vertically distributed as a whole, and the length of the sealing plug 14 is greater than the inner diameter length of the inlet pipe 12, which can effectively block the inlet pipe 12 to prevent the lubricating oil from flowing into the rear end position of the outlet pipe 13. In addition, a tension spring 17 is arranged between the sealing plug 14 and one end of the outlet pipe 13. The tension spring 17 is sleeved on the outer surface of the connecting rod 15, which is used to provide power for the reset of the sealing plug 14, and thus can continuously discharge the lubricating oil into the support bearing 6. And the other end of the outlet pipe 13 is provided with a conical nozzle, which is used to reduce the oil outlet diameter of the outlet pipe 13, thereby increasing the spraying speed of the lubricating oil to ensure that it can be coated inside the support bearing 6. And the side of the outlet pipe 13 close to the conical nozzle is inclined upward, which is used to prevent the hydraulic oil in the outlet pipe 13 from flowing out automatically. At the same time, a driving plate 18 is arranged on the outer surface of the transmission column 5. The driving plate 18 is located inside the protective housing 3. A limiting groove 19 is opened on the driving plate 18, and the limiting groove 19 is adapted to the operating ball 16. The driving plate 18 is spiral as a whole, which is used to make the sealing plug 14 reciprocate inside the outlet pipe 13. Its reciprocating motion of the sealing plug 14 is realized through the operation of the transmission column 5. Through the spiral limiting groove 19, the lubricating oil can be continuously extracted and sprayed inside the support bearing 6, thereby improving the lubrication effect of the support bearing 6.

[0030] The working principle of all the contents in the above embodiments is as follows:

[0031] During use, the drive motor 2 drives the transmission column 5 to rotate, and the transmission column 5 then drives the pump body 4 to operate, thereby enabling the extraction and discharge of materials. During this process, as the transmission column 5 rotates continuously, the internal temperature of the support bearing 6 keeps rising. Then, the support bearing 6 transfers the heat inside it to the heat dissipation cylinder 8 through the heat conduction strip 10, and transfers the heat to the liquid material through the heat dissipation grooves 9 formed on the heat dissipation cylinder 8, thereby effectively absorbing part of the heat of the support bearing 6. Through the hollow-shaped support bearing 6 and the ventilation holes 11 provided thereon, the air flow around the support bearing 6 can be accelerated, and thus the heat generated during the operation of the support bearing 6 can be effectively discharged. At the same time, during the rotation of the transmission column 5, the driving plate 18 thereon also rotates accordingly. Then, the spiral-shaped limiting groove 19 on the driving plate 18 drives the connecting rod 15 to continuously extend outside the oil outlet pipe 13. At this time, the sealing plug 14 cannot block the oil inlet pipe 12, so that the lubricating oil in the oil inlet pipe 12 continuously flows into the oil outlet pipe 13. When the operating ball 16 on the connecting rod 15 disengages from the limiting groove 19, the tension spring 17 inside the oil outlet pipe 13 is no longer restricted and continuously extends to its original position, thereby driving the sealing plug 14 to slide along the inside of the oil outlet pipe 13 and pushing the lubricating oil to spray out from the conical nozzle into the inside of the support bearing 6. Thus, the lubricating oil inside the support bearing 6 can be continuously replaced, and the lubrication effect of the support bearing 6 can be ensured.

[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing-supported positioning screw pump, comprising a base frame (1), a driving motor (2), a protective shell (3) and a pump body (4) are sequentially arranged on the top of the base frame (1), and the three are fixedly connected to each other, and the output shaft of the driving motor (2) is provided with a transmission column (5), and the transmission column (5) passes through the interior of the protective shell (3), characterized in that: A support seat (7) is provided between the pump body (4) and the protective shell (3); a support bearing (6) is provided on the inner surface of the support seat (7); the inner surface of the support bearing (6) is sleeved on the outer surface of the transmission column (5); a heat dissipation tube (8) is provided on the side of the pump body (4) close to the support bearing (6); heat conduction strips (10) are evenly provided on the side of the heat dissipation tube (8) close to the support bearing (6), and the heat conduction strips (10) are in contact with the outer surface of the support bearing (6); An oil injection assembly is arranged inside the protective shell (3) and is used to add lubricating oil to the inside of the support bearing (6).

2. A bearing-supported positioning screw pump according to claim 1, characterized in that: The inner surface of the support seat (7) is in a hollow state, which is used to increase the heat dissipation area of ​​the support bearing (6); and ventilation holes (11) are evenly arranged on the support seat (7) to improve the efficiency of heat dissipation.

3. A bearing-supported positioning screw pump according to claim 2, characterized in that: The outer surface of the heat dissipation tube (8) is evenly provided with heat dissipation grooves (9) for increasing the contact area of ​​the heat dissipation tube (8), and the heat dissipation tube (8) is in a cone shape as a whole for preventing the material from flowing back into the support bearing (6).

4. A bearing-supported positioning screw pump according to claim 1, characterized in that: The oil injection assembly comprises an oil inlet pipe (12), the oil inlet pipe (12) being arranged on the protective shell (3) and one end of which is located outside the protective shell (3), the other end of the oil inlet pipe (12) being arranged with an oil outlet pipe (13), the inner surface of the oil outlet pipe (13) being slidably provided with a sealing plug (14), one side of the sealing plug (14) being provided with a connecting rod (15), one end of the connecting rod (15) being provided with an operating ball (16), the operating ball (16) being located outside the oil outlet pipe (13).

5. A bearing-supported positioning screw pump according to claim 4, characterized in that: A tension spring (17) is provided between the sealing plug (14) and one end of the oil outlet pipe (13); the tension spring (17) is sleeved on the outer surface of the connecting rod (15) and is used to provide power for resetting the sealing plug (14).

6. A bearing-supported positioning screw pump according to claim 5, characterized in that: The other end of the oil outlet pipe (13) is provided with a conical nozzle, which is used to reduce the oil outlet diameter of the oil outlet pipe (13), and the side of the oil outlet pipe (13) close to the conical nozzle is inclined upward, which is used to prevent the hydraulic oil in the oil outlet pipe (13) from flowing out autonomously.

7. A bearing-supported positioning screw pump according to claim 6, characterized in that: The outer surface of the transmission column (5) is provided with a driving plate (18), the driving plate (18) is located inside the protective shell (3), and a limiting groove (19) is provided on the driving plate (18), and the limiting groove (19) is adapted to fit the operating ball (16).

8. A bearing-supported positioning screw pump according to claim 7, characterized in that: The driving plate (18) is spiral in shape as a whole and is used to enable the sealing plug (14) to slide back and forth inside the oil outlet pipe (13).

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