CN222208309U - Vertical pipeline pump with rigid coupling - Google Patents
Vertical pipeline pump with rigid coupling Download PDFInfo
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- CN222208309U CN222208309U CN202421089539.4U CN202421089539U CN222208309U CN 222208309 U CN222208309 U CN 222208309U CN 202421089539 U CN202421089539 U CN 202421089539U CN 222208309 U CN222208309 U CN 222208309U
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- pump
- rigid coupling
- motor
- mechanical seal
- shaft
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- 230000008878 coupling Effects 0.000 title claims abstract description 46
- 238000010168 coupling process Methods 0.000 title claims abstract description 46
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 46
- 238000011010 flushing procedure Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本实用新型涉及一种带刚性联轴器的立式管道泵，包括泵体、叶轮、刚性联轴器和电机，电机的输出轴上设置卡块，刚性联轴器内侧壁设置卡槽；泵体上设置电机支架，电机支架上设置电机，电机的输出轴和泵轴的一端通过刚性联轴器连接，泵轴的另一端与叶轮连接，叶轮设置在泵体内，叶轮上方的泵轴上套设有轴套，轴套上方的泵轴上设置机械密封，机械密封上方的泵轴上设置机封端盖，机封端盖和泵体之间设置泵盖，泵体出口设置冲洗管连通至机械密封；本实用新型通过预制所需抬升高度的卡槽和卡块，使刚性联轴器的安装更加便捷和准确。
The utility model relates to a vertical pipeline pump with a rigid coupling, comprising a pump body, an impeller, a rigid coupling and a motor, wherein a clamping block is arranged on the output shaft of the motor, and a clamping groove is arranged on the inner side wall of the rigid coupling; a motor bracket is arranged on the pump body, a motor is arranged on the motor bracket, the output shaft of the motor and one end of the pump shaft are connected through a rigid coupling, the other end of the pump shaft is connected to the impeller, the impeller is arranged in the pump body, a shaft sleeve is arranged on the pump shaft above the impeller, a mechanical seal is arranged on the pump shaft above the shaft sleeve, a machine seal end cover is arranged on the pump shaft above the mechanical seal, a pump cover is arranged between the machine seal end cover and the pump body, and a flushing pipe is arranged at the pump body outlet to be connected to the mechanical seal; the utility model makes the installation of the rigid coupling more convenient and accurate by prefabricating the clamping groove and the clamping block of the required lifting height.
Description
Technical Field
The utility model belongs to the technical field of vertical pipeline pumps, and particularly relates to a vertical pipeline pump with a rigid coupling.
Background
The vertical pipeline pump consists of five parts, namely an impeller, a pump body, an extension shaft motor, a coupler and a mechanical seal. Because the mechanical seal is positioned in a high-pressure area of the vertical pipeline pump, impurities in conveying liquid easily enter the surface of the mechanical seal, so that the loss of the mechanical seal is increased in the high-speed friction process, and once the mechanical seal is damaged, the pipeline pump leaks water and the like, so that the mechanical seal needs to be frequently overhauled and replaced.
The vertical pipeline pump structure with the motor shaft and the pump shaft connected by the rigid coupling is more convenient to overhaul and replace the mechanical seal due to convenient disassembly and assembly, but the precision of the mechanical seal is higher, the disassembly and assembly requirements are more strict, after the mechanical seal is disassembled, the impeller falls to the bottom of the pump body due to gravity, after the mechanical seal is installed on the impeller shaft, in order to avoid dry abrasion caused by bottoming of the lower end of the impeller, the impeller shaft is required to be lifted upwards, a gasket is inserted between the impeller shaft and the pump cover, then the bolt of the rigid coupling is screwed down, the gasket is removed, the installation can be completed, the bolt of the rigid coupling is screwed down under the installation environment without the gasket, the operation is very dependent on the operation precision of an installer, the excessive lowering height can cause the impeller abrasion, and the lower lowering height can cause the abrasion between the upper end of the impeller and the pump cover.
Patent CN2538993Y discloses a vertical pipeline pump of just tearing open, through setting up extension axle motor and link, the extension axle of motor adopts splint shaft coupling to be connected with the impeller axle, demolishs splint shaft coupling and can convenient change seal, still need lift up the impeller axle after this scheme has changed the seal, avoids impeller bottom and the contact of pump body to cause dry wearing and tearing.
Therefore, a vertical pipeline pump with a rigid coupler does not exist, and after the coupler is removed, the mechanical seal is checked and replaced, the coupler can be conveniently and accurately installed.
Disclosure of utility model
The utility model provides a vertical pipeline pump with a rigid coupling, which aims to solve the problem of convenient and accurate installation of the rigid coupling when the mechanical seal of the vertical pipeline pump is overhauled or replaced.
The aim of the utility model can be achieved by the following technical scheme:
A vertical pipeline pump with a rigid coupling comprises a pump body, an impeller, the rigid coupling and a motor, wherein a clamping block is arranged on an output shaft of the motor, and a clamping groove is formed in the inner side wall of the rigid coupling;
The pump body is provided with a motor support, a motor is arranged on the motor support, an output shaft of the motor is connected with one end of a pump shaft through a rigid coupling, the other end of the pump shaft is connected with an impeller, the impeller is arranged in the pump body, a shaft sleeve is sleeved on the pump shaft above the impeller, a mechanical seal is arranged on the pump shaft above the shaft sleeve, a mechanical seal end cover is arranged on the pump shaft above the mechanical seal, a pump cover is arranged between the mechanical seal end cover and the pump body, and a flushing pipe is arranged at an outlet of the pump body and communicated with the mechanical seal.
Further, two clamping blocks are symmetrically arranged at the lower end of the side face of the output shaft of the motor.
Further, the shape of the clamping block is right trapezoid, and the inclined side of the clamping block faces upwards.
Further, the inclined corner of the higher end of the inclined side of the clamping block is parallel to the plane of the ground of the clamping block.
Further, the clamping groove consists of a lifting groove arranged at the center of the upper end of the rigid coupler and a sliding groove connected with the left side of the lifting groove.
Further, the upper end of the lifting groove is matched with the shape of the clamping block, and the lower end of the lifting groove is a rectangular groove with the same height as the clamping block.
Further, the sliding grooves are the same as the lifting grooves, and the height of the sliding grooves is lower than that of the lifting grooves.
Further, the difference between the highest points of the sliding grooves and the lifting grooves is the lifting height required by the pump shaft.
The utility model has the beneficial effects that:
(1) According to the utility model, the clamping grooves are formed in the inner side wall of the rigid coupling, and the clamping blocks are arranged on the two sides of the output shaft of the motor, so that the vertical pipeline pump is more convenient to install after mechanical sealing is replaced or overhauled, a gasket is not required, the lifting height of the pump shaft is not required to be manually controlled, the lifting and the lowering of the pump shaft can be completed through the simple steps of lifting and rotating through prefabricating the clamping grooves with the required lifting height, the dry friction of the impeller at the bottom of the pump shaft is avoided, the dry friction between the rigid coupling and a motor bracket due to the fact that the rigid coupling is too high in lifting is avoided, meanwhile, friction torque between the rigid coupling and the output shaft is reduced by the clamping blocks, and the service life of the rigid coupling is prolonged.
(2) According to the utility model, the flushing pipe is arranged at the outlet of the pump body, so that the high-flow-rate liquid at the outlet of the pipeline pump continuously lubricates and flushes the mechanical seal through the flushing pipe when the pipeline pump works, the accumulation of impurities in the liquid conveyed by the pipeline pump at the mechanical seal is reduced, the service life of the mechanical seal is prolonged, the stability of the mechanical seal is improved, and the frequency of checking and replacing the mechanical seal is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an assembly view of a vertical tube pump with a rigid coupling according to the present utility model;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic view of the rigid coupling of the present utility model;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a schematic view of the motor shaft structure of the present utility model;
FIG. 6 is a top view of FIG. 5;
In the drawings, the list of components represented by the various numbers is as follows:
1. The device comprises a motor, 101, an output shaft, 102, a clamping block, 2, a motor bracket, 3, a rigid coupling, 301, a clamping groove, 3011, a lifting groove, 3012, a sliding groove, 4, a mechanical seal, 5, a machine end sealing cover, 6, a shaft sleeve, 7, a pump cover, 8, an impeller flat key, 9, an impeller nut, 10, an impeller, 11, a sealing ring, 12, a pump body, 13 and a flushing pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, a vertical pipeline pump with a rigid coupling comprises a pump body 12, an impeller 10 and a motor 1;
the pump body 12 is provided with the motor support 2, the motor support 2 is provided with the motor 1, an output shaft 101 of the motor 1 is connected with one end of a pump shaft through the rigid coupling 3, the other end of the pump shaft is connected with the impeller 10, the impeller 10 is arranged in the pump body 12, a shaft sleeve 6 is sleeved on the pump shaft above the impeller 10, a mechanical seal 4 is arranged on the pump shaft above the shaft sleeve 6, a mechanical seal end cover 5 is arranged on the pump shaft above the mechanical seal 4, a pump cover 7 is arranged between the mechanical seal end cover 5 and the pump body 12, and a flushing pipe is arranged at an outlet of the pump body 12 and communicated with the mechanical seal 4.
Referring to fig. 2, 5 and 6, two clamping blocks 102 are symmetrically arranged at the lower end of the side surface of the output shaft 101 of the motor 1, the clamping blocks 102 are right trapezoid, and the inclined sides of the clamping blocks 102 face upwards;
In order to reduce the abrasion of the oblique corner of the clamping block 102, a plane parallel to the ground of the clamping block 102 is arranged at the oblique corner of the higher end of the oblique side of the clamping block 102.
Referring to fig. 3 and 4, a clamping groove 301 is formed at a position where a clamping block 102 of the output shaft 101 is clamped by the rigid coupling 3, the clamping groove 301 is composed of a lifting groove 3011 formed in the center of the upper end of the rigid coupling 3 and a sliding groove 3012 connected with the left side of the lifting groove 3011, the upper end of the lifting groove 3011 is identical to the clamping block 102 in shape, the lower end of the lifting groove 3011 is a rectangular groove with the same height as the clamping block 102, the sliding groove 3012 is identical to the lifting groove 3011 in shape, the height of the sliding groove 3012 is lower than that of the lifting groove 3011, and the difference value between the sliding groove 3012 and the highest point of the lifting groove 3011 is the lifting height required by a pump shaft.
Working principle:
When the rigid coupler 3 is installed, the lower end of the rigid coupler 3 is fixed with the pump shaft, the rigid coupler 3 can slide up and down and rotate left and right with the output shaft 101 when the bolt is not screwed up at the upper end, the clamping block 102 of the output shaft 101 is positioned at the top of the lifting groove 3011, when the pump shaft is driven to move upwards by the upward lifting coupler, the clamping block 102 is enabled to move downwards relatively, the clamping block 102 is positioned at the bottom of the lifting groove 3011, at the moment, the rigid coupler 3 is rotated clockwise, the plane at the top of the clamping block 102 slides to the right side of the lifting groove 3011, under the action of gravity, the output shaft 101 and the rigid coupler 3 slide, the clamping block 102 slides upwards to the top of the lifting groove 3011, so that the installation steps of 'lifting the pump shaft to the top and then lowering a certain height' are realized when no gasket are adopted, and the clamping block 102 reduces friction torque between the rigid coupler 3 and the output shaft 101, and the service life of the rigid coupler 3 is prolonged;
The flushing pipe arranged at the outlet of the pump body 12 can continuously lubricate and flush the mechanical seal 4 with high-flow-rate liquid at the outlet when the pipeline pump works, reduce the accumulation of impurities in the liquid conveyed by the pipeline pump at the mechanical seal 4, prolong the service life of the mechanical seal 4, improve the stability of the mechanical seal 4 and reduce the frequency of checking and replacing the mechanical seal 4.
The application steps of the utility model are as follows:
Step one, taking out fixing bolts on two sides of the rigid couplings 3, separating the two rigid couplings 3, checking whether the mechanical seal 4 is damaged, replacing the mechanical seal 4 if the mechanical seal 4 is damaged, and carrying out step two if the mechanical seal 4 is not damaged;
Step two, the lower end of the rigid coupler 3 is accurately matched with the pump shaft, a clamping block 102 of an output shaft 101 is clamped at the top end of a lifting groove 3011 of the rigid coupler 3, and fixing bolts of the rigid couplers 3 on two sides of the pump shaft are installed and screwed, so that the pump shaft is tightly combined with the rigid coupler 3;
Step three, installing and adjusting the tightening degree of the residual fixing bolts, so that the rigid coupling 3 and the output shaft 101 can slide up and down and rotate left and right;
And step four, lifting the rigid coupler 3 to the highest, then rotating the rigid coupler 3 clockwise until the height of the rigid coupler 3 is unchanged, tightening the rest fixing bolts, and finishing the installation.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative of the structures of this utility model and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the utility model or from the scope of the utility model as defined in the accompanying claims.
Claims (8)
1. The vertical pipeline pump with the rigid coupling comprises a pump body (12), an impeller (10), the rigid coupling (3) and a motor (1), and is characterized in that a clamping block (102) is arranged on an output shaft (101) of the motor (1), and a clamping groove (301) is formed in the inner side wall of the rigid coupling (3);
Set up motor support (2) on pump body (12), set up motor (1) on motor support (2), output shaft (101) of motor (1) and the one end of pump shaft are connected through rigid coupling (3), the other end and impeller (10) of pump shaft are connected, impeller (10) set up in pump body (12), the epaxial cover of pump of impeller (10) top is equipped with axle sleeve (6), the epaxial mechanical seal (4) that sets up of pump of axle sleeve (6) top, set up mechanical seal end cover (5) on the pump shaft of mechanical seal (4) top, set up pump cover (7) between mechanical seal end cover (5) and pump body (12), pump body (12) export sets up wash pipe intercommunication to mechanical seal (4).
2. The vertical pipeline pump with the rigid coupling according to claim 1, wherein two clamping blocks (102) are symmetrically arranged at the lower end of the side face of the output shaft (101) of the motor (1).
3. A vertical pipeline pump with a rigid coupling according to claim 2, characterized in that the clamping block (102) is right trapezoid in shape, and the sloping side of the clamping block (102) faces upwards.
4. A vertical pipeline pump with a rigid coupling according to claim 3, wherein the inclined corner of the higher end of the inclined side of the clamping block (102) is provided with a plane parallel to the ground of the clamping block (102).
5. The vertical pipeline pump with the rigid coupling according to claim 1, wherein the clamping groove (301) is composed of a lifting groove (3011) arranged at the center of the upper end of the rigid coupling (3) and a sliding groove (3012) connected with the left side of the lifting groove (3011).
6. The vertical pipeline pump with the rigid coupling according to claim 5, wherein the upper end of the lifting groove (3011) is in shape fit with the clamping block (102), and the lower end of the lifting groove is a rectangular groove with the same height as the clamping block (102).
7. The vertical tube pump with the rigid coupling according to claim 6, wherein the sliding groove (3012) is the same shape as the lifting groove (3011), and the height of the sliding groove (3012) is lower than that of the lifting groove (3011).
8. The vertical tube pump with rigid coupling according to claim 7, wherein the difference between the highest point of the sliding groove (3012) and the lifting groove (3011) is the required lifting height of the pump shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421089539.4U CN222208309U (en) | 2024-05-20 | 2024-05-20 | Vertical pipeline pump with rigid coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421089539.4U CN222208309U (en) | 2024-05-20 | 2024-05-20 | Vertical pipeline pump with rigid coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222208309U true CN222208309U (en) | 2024-12-20 |
Family
ID=93866954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421089539.4U Active CN222208309U (en) | 2024-05-20 | 2024-05-20 | Vertical pipeline pump with rigid coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222208309U (en) |
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2024
- 2024-05-20 CN CN202421089539.4U patent/CN222208309U/en active Active
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