CN216975139U

CN216975139U - Stirring rod pump

Info

Publication number: CN216975139U
Application number: CN202123403965.XU
Authority: CN
Inventors: 赵民章; 李国成; 王利超
Original assignee: Ruppmann Suzhou Technology Co ltd
Current assignee: Ruppmann Suzhou Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-15
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to a stirring rod pump. The lubricating grease scraping device comprises a pump body and a driving device arranged on the pump body, wherein an eccentric wheel or a cam or a crank connecting rod mechanism is arranged on a driving output shaft of the driving device, a plunger sub-assembly driven by the eccentric wheel or the cam or the crank connecting rod mechanism is further arranged in the pump body, an oil tank is arranged on the upper portion of the pump body, an oil distribution disc with a plurality of meshes is arranged between the pump body and the oil tank, a speed reducing mechanism is arranged at the bottom of the oil tank and comprises a shell fixed on the oil distribution disc or the pump body and a power input shaft coaxially connected with the driving output shaft, the speed reducing mechanism further comprises a power output shaft coaxial with the power input shaft, and a stirring rod used for scraping lubricating grease on the inner wall of the oil tank is arranged on the power output shaft. The speed reducing mechanism is arranged between the stirring rod and the driving output shaft, so that the effect of reducing speed and increasing torque can be achieved, and the technical problem that the high-speed high-resistance rotation of the stirring rod causes large load on a motor is effectively solved.

Description

Stirring rod pump

Technical Field

The utility model relates to a stirring rod pump.

Background

In a wind turbine generator, a lubrication system is required to lubricate parts such as bearings and gears. Through rapid development of the wind power industry for many years, the technology is gradually mature, and in order to reduce the power consumption cost of a wind turbine generator, the megawatt number of a single fan is increased, and the larger the fan is. The automatic lubricating system is equipment for lubricating a fan bearing and a tooth surface, and a lubricating pump of the system can pump grease to a lubricating point at regular time and quantity through an oil conveying pipe. As the fan is made larger, the oil demand of the lubricating point is more and more. Because wind power equipment is inconvenient to maintain, the operation and maintenance period is long, the volume of an oil tank of the lubricating pump is required to be larger and larger, and the diameter of the oil tank of the lubricating pump needs to be increased.

The automatic lubricating system is widely applied to equipment such as engineering machinery, and for equipment with large oil consumption, an oil tank of a lubricating pump is required to have large volume and large diameter.

When the lubricating pump with the stirring rod structure works, the stirring rod can rotate around a motor shaft in an oil tank, the motor shaft is generally positioned at the central axis and extends upwards from the pump body, the stirring rod can scrape grease stuck on the inner wall of the oil tank in the rotating process, the stirring rod stirs the grease in the oil tank simultaneously, otherwise, the lubricating pump is easy to evacuate, and the lubricating grease can not be reliably pumped to a lubricating part. However, when the stirring rod rotates and stirs in the oil tank, the grease can generate great resistance to the stirring rod, the running load of the motor can be increased, the higher the rotating speed of the stirring rod is, the greater the resistance generated by the grease to the stirring rod is, and the greater the load of the motor is. The load is excessively increased, the rotating speed of the motor can be dragged to be reduced, the displacement of the plunger piston cannot be guaranteed finally, and the equipment cannot be effectively lubricated. The viscosity of the grease is greatly influenced by the temperature, the lower the temperature is, the higher the viscosity of the grease is, and under the condition of low temperature, the rotating resistance of the stirring rod is larger, and even the motor can not normally rotate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a stirring rod pump, which is used for solving the technical problem that a stirring rod of the existing stirring rod pump causes overlarge load on a motor.

The technical scheme of the utility model is as follows: the utility model provides a stir bar pump includes the pump body and establishes the drive arrangement on the pump body, install eccentric wheel or cam or crank link mechanism on drive arrangement's the drive output shaft, still be equipped with the plunger sub-assembly by eccentric wheel or cam or crank link mechanism drive in the pump body, pump body upper portion is equipped with the oil tank, be provided with the oil distribution dish that has a plurality of meshs between the pump body and the oil tank, the oil tank bottom is equipped with reduction gears, reduction gears is including fixing the casing on oil distribution dish or the pump body and with drive output shaft coaxial coupling's power input shaft, reduction gears still includes the power output shaft coaxial with power input shaft, power output shaft is last to install the stirring rod that is used for striking off the lubricating grease on the oil tank inner wall.

Further, the reduction mechanism includes a planetary gear transmission mechanism or a secondary gear transmission mechanism.

Further, an impeller for pressing grease downwards is arranged above the oil distribution disc, and the impeller is arranged on the driving output shaft or the power input shaft or the power output shaft.

Further, the driving device is a driving motor.

The utility model has the beneficial effects that: in the working process, the output shaft of the driving device in the pump body rotates, the eccentric wheel or the cam arranged on the driving output shaft rotates, the plunger on the plunger pair is driven to realize reciprocating motion, and the grease in the pump body is output. The impeller is driven to rotate in the rotation process of the driving output shaft, and downward extrusion force can be generated on grease in the rotation process of the impeller, so that grease suction of the plunger is facilitated. The tail end of the driving output shaft is connected with the power input shaft of the speed reducing mechanism, the driving output shaft rotates to drive the input shaft of the speed reducing mechanism to rotate, and after the speed of the speed reducing mechanism is reduced, the power output shaft of the speed reducing mechanism outputs a certain rotating speed which is lower than the rotating speed of the power input shaft. The stirring rod arranged on the power output shaft of the speed reducing mechanism rotates along with the power output shaft, and the rotating speed of the stirring rod is lower than that of the driving output shaft. And in the rotating process of the stirring rod, grease on the inner wall of the oil tank is scraped. Compared with a driving output shaft, the rotating speed of the stirring rod after being decelerated is lower, the resistance of the grease to the stirring rod is smaller, particularly when the grease is thicker or the use temperature is lower, the resistance is not obviously increased, and the load of the motor is not greatly increased. Because the motion resistance of the stirring rod is small, the load of the motor is small, the speed reduction of the motor is less under the condition of low temperature or grease viscosity, and the low-temperature adaptability of the pump with the structure is better. Furthermore, for the scraping and stirring of lubricating grease, too high speed is not needed, the stirring rod in the prior art is directly connected with the driving output shaft, the rotating speed of the stirring rod is consistent with that of the driving output shaft, the rotating speed of the driving output shaft is limited by the impeller, and the stirring rod cannot be pressed downwards until higher rotating speed is provided, so that the rotating speed of the stirring rod is higher, the load of the motor is seriously increased due to the too high rotating speed, the effect of reducing speed and increasing torque can be achieved by arranging the speed reducing mechanism between the stirring rod and the driving output shaft, and the technical problem that the motor is subjected to larger load due to high-speed and high-resistance rotation of the stirring rod is effectively solved.

Drawings

FIG. 1 is a schematic perspective view of an embodiment 1 of a puddler pump according to the present invention (with a fuel tank wall omitted);

FIG. 2 is a longitudinal sectional view of the puddle pump corresponding to FIG. 1 (showing the tank wall);

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic perspective view of a pump according to embodiment 2 of the present invention (omitting the wall of the oil tank)

FIG. 5 is a longitudinal sectional partial view of the puddle pump corresponding to FIG. 4 (showing the tank wall);

FIG. 6 is a schematic diagram of a planetary gear transmission mechanism used in the reduction mechanism;

FIG. 7 is a schematic diagram of a reduction mechanism employing a two-stage gear transmission;

in the figure: 1-a pump body, 2-a motor, 3-a driving output shaft, 4-an eccentric wheel, 5-a plunger pair, 6-a plunger, 7-an oil distribution disc, 8-an oil tank, 9-an impeller, 10-a speed reducing mechanism, 101-a power input shaft, 102-a power output shaft, 11-a bracket, 12-a stirring rod, 121-a stirring rod with an impeller, 13-a box cover and 14-a pump lower cover; 15-sun, 16-pinion, 17-ring, 18-planet carrier; 19-a primary input gear, 20-a primary output gear, 21-a secondary input gear, 22-a secondary output gear and 23-a connecting shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

One embodiment of the present invention:

example 1 of the stirring bar type lubricating pump of the present invention: as shown in fig. 1-3, the stirring rod type lubricating pump comprises an oil tank 8, a pump body 1, a pump lower cover 14, a motor 2, a plunger pair 5, an impeller 9, a speed reducing mechanism 10, a stirring rod 12, a detachable connection structure and the like.

The motor 2 is fixed on the pump body 1, the eccentric wheel 4 is fixed on the driving output shaft 3, the upper end of the driving output shaft 3 penetrates through the oil distribution disc 7 and then is fixedly connected with the impeller 9 on the driving output shaft 3, and the impeller 9 rotates at the same speed along with the driving output shaft 3. In this embodiment, a bracket 11 is fixed to the pump body 1, a reduction mechanism 10 is fixedly mounted on the bracket 11, a housing of the reduction mechanism 10 is fixed to the bracket 11, a power output shaft 102 extends from an upper portion of the reduction mechanism 10, a power input shaft 101 extends from a lower portion of the reduction mechanism 10, the power input shaft 101 is coaxially connected to the drive output shaft 3, and the power output shaft 102 is coaxially connected to the drive output shaft 3. In this embodiment, the inside of the casing of the speed reducing mechanism 10 is a speed reducing gear mechanism, which may be a planetary gear transmission mechanism or a secondary gear transmission mechanism. The power output shaft 102 of the speed reducing mechanism 10 is fixedly connected with the stirring rod 12 and can rotate at the same speed.

The working principle of the pump is as follows: when the motor 2 is powered on to work, power is output through the driving output shaft 3 after the speed reduction and transmission assembly, the driving output shaft 3 is vertically arranged, an eccentric wheel is installed on the driving output shaft 3 and is matched with each plunger pair, so that the plungers 6 are driven to reciprocate to suck lubricating grease in the inner cavity of the pump body 1, meanwhile, the driving output shaft drives the power input shaft of the speed reduction mechanism to rotate through the rotation stopping structure, the power output shaft 102 of the speed reduction mechanism rotates at a lower rotating speed, and the stirring rod 12 is driven to start rotating. Stirring rod 12 stirs the lubricating grease in the oil tank 8 for viscous lubricating grease breaks away from the inner wall, make lubricating grease down more smoothly, impeller 9 fixed on the drive output shaft is rotatory along with the drive output shaft, impeller 9 then utilizes the structure of slope to extrude lubricating grease when rotating, lubricating grease then enters into the inner chamber of the pump body 1 and contacts with the import of plunger, thereby by the suction of plunger pair in the plunger chamber, in the action subsequently of plunger, can supply lubricating grease for the distributor or directly for the lubricated position department through oil pipe. Because the impeller 9 is fixed on the driving output shaft or the power input shaft of the speed reducing mechanism, and the stirring rod 12 is fixed on the power output shaft, after speed reduction, the rotating speed of the stirring rod 12 is lower than that of the impeller 9.

In the working process, the output shaft of the driving device in the pump body rotates, the eccentric wheel or the cam arranged on the driving output shaft rotates, the plunger on the plunger pair is driven to realize reciprocating motion, and the grease in the pump body is output. The impeller is driven to rotate in the rotation process of the driving output shaft, and downward extrusion force can be generated on grease in the rotation process of the impeller, so that grease suction of the plunger is facilitated. The tail end of the driving output shaft is connected with the power input shaft of the speed reducing mechanism, the driving output shaft rotates to drive the input shaft of the speed reducing mechanism to rotate, and after the speed of the speed reducing mechanism is reduced, the power output shaft of the speed reducing mechanism outputs a certain rotating speed which is lower than the rotating speed of the power input shaft. The stirring rod arranged on the power output shaft of the speed reducing mechanism rotates along with the power output shaft, and the rotating speed of the stirring rod is lower than that of the driving output shaft. And in the rotating process of the stirring rod, grease on the inner wall of the oil tank is scraped. Compared with a driving output shaft, the rotating speed of the stirring rod after being decelerated is lower, the resistance of the grease to the stirring rod is smaller, particularly when the grease is thicker or the use temperature is lower, the resistance is not obviously increased, and the load of the motor is not greatly increased. Because the motion resistance of the stirring rod is small, the load of the motor is small, the speed reduction of the motor is less under the condition of low temperature or grease viscosity, and the low-temperature adaptability of the pump with the structure is better. Furthermore, for the scraping and stirring of the lubricating grease, too high speed is not needed, the stirring rod in the prior art is directly connected with the driving output shaft, the rotating speed of the stirring rod is consistent with that of the driving output shaft, the rotating speed of the driving output shaft is limited by the impeller, and higher rotating speed has to be provided to press the grease downwards, so that the rotating speed of the stirring rod is higher, the load of the motor is seriously increased by the too high rotating speed, the effect of reducing speed and increasing torque can be achieved by arranging the speed reducing mechanism between the stirring rod and the driving output shaft, and the technical problem that the motor is subjected to higher load due to high-speed and high-resistance rotation of the stirring rod is effectively solved.

Example 2 of the stirring bar type lubricating pump of the present invention: as shown in fig. 4 to 5, the difference from embodiment 1 is that the speed reduction mechanism 10 is directly fixed to the oil distribution pan 7, and the stirring rod 121 is fixed to the output shaft of the speed reduction mechanism. The structure of the stirring rod 121 with the impeller of the embodiment comprises an oil scraping part for scraping grease on the inner wall of the oil tank and an impeller structure part for pressing oil downwards, wherein the oil scraping part and the impeller part rotate at the same speed in the working process without an impeller 9 which independently rotates with the driving output shaft 3 at a higher rotating speed.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all equivalent structural changes made by using the contents of the specification and the drawings of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a stir bar pump, including the pump body and establish the drive arrangement on the pump body, install eccentric wheel or cam or crank link mechanism on drive arrangement's the drive output shaft, still be equipped with the plunger sub-assembly by eccentric wheel or cam or crank link mechanism drive in the pump body, pump body upper portion is equipped with the oil tank, be provided with the oil distribution disc that has a plurality of meshs between the pump body and the oil tank, a serial communication port, the oil tank bottom is equipped with reduction gears, reduction gears is including fixing the casing on oil distribution disc or the pump body and with drive output shaft coaxial coupling's power input shaft, reduction gears still includes the power output shaft coaxial with power input shaft, power output shaft is last to install the stirring pole that is used for striking off the lubricating grease on the oil tank inner wall.

2. A stalk pump according to claim 1 wherein the speed reduction mechanism comprises a planetary gear transmission or a two stage gear transmission.

3. A stalk pump as claimed in claim 1 wherein an impeller for pressing grease downwardly is provided above the oil distribution pan, the impeller being provided on said drive output shaft or power input shaft or power output shaft.

4. A stalk pump as claimed in claim 1, wherein the drive means is a drive motor.