CN219756004U

CN219756004U - Automatic grease injection device for lubrication point of pumping unit

Info

Publication number: CN219756004U
Application number: CN202321159176.2U
Authority: CN
Inventors: 吴登亮; 海涛; 李伟; 段果花
Original assignee: Beijing Zhongshi Tianma Technology Co ltd
Current assignee: Beijing Zhongshi Tianma Technology Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-09-26
Anticipated expiration: 2033-05-15

Abstract

The utility model relates to an automatic grease injection device for a lubrication point of an oil pumping unit, which comprises: a lubrication pump for pumping the lubricating grease; the grease distributor is communicated with four high-pressure resin hoses through the oil outlets, and the outlets of the high-pressure resin hoses are respectively arranged at the lubrication points of the bearings; a flow sensor for monitoring the amount of lubricating grease flowing through each high-pressure resin hose; and the controller is used for controlling the oil outlet which is switched to be communicated by the grease distributor and controlling the operation of the lubricating pump according to the quantity of the lubricating grease flowing through the high-pressure resin hose. The automatic grease injection device is used for injecting the grease into the lubrication points of the bearings when the pumping unit works, conveying enough grease to the lubrication points of the bearings, ensuring thorough lubrication of the bearings, and automatically carrying out timely lubrication operation on each pumping unit, so that the workload of field workers is greatly reduced.

Description

Automatic grease injection device for lubrication point of pumping unit

Technical Field

The utility model relates to the field of oil pumping unit lubrication, in particular to an automatic grease injection device for a lubrication point of an oil pumping unit.

Background

The beam pumping unit changes the rotation motion of a motor into the reciprocating motion of an oil pump through a crank connecting rod mechanism, and takes the beam pumping unit commonly installed in an oil field as an example, in the four-stroke motion, a middle bearing and a tail bearing perform swinging motion, two crank pin bearings perform rotation motion, the speed is extremely low (less than 6 times/minute and 6 revolutions/minute), but rated load reaches 14-16 tons, the load characteristic of each bearing is typical alternating low-speed heavy load in the four-stroke motion period, if the middle bearing, the tail bearing and the two crank pin bearings have the problem of poor lubrication, the early wear, the bite and even the blocking of the bearings are extremely easy to cause, so that the components of the pumping unit enter a maintenance and replacement period prematurely, the oil field production cost is increased, the oil extraction efficiency is reduced, and the safety risk is increased.

The oil pumping unit is installed in the field, the appearance lacks protector, can receive serious erosion in severe environments such as sand wind, rainwater, ice and snow, this just requires in time the lubrication work that targets in place to the oil pumping unit running part, and the lubrication mode of current oil pumping unit is manual lubrication generally, uses the grease injection method of grease gun: when the grease gun stops every month, the staff arrives at the site, grease is filled into the lubricating points of each bearing until the dirty grease at the shaft seal of the bearing overflows, compared with manual smearing, the lubricating mode can discharge the dirty grease at part of the roller, the roller path and the grid frame, and the defect is that under the pressure action of the grease gun, the dirty grease in the path can move forwards under the pushing of the pressure until the dirty grease overflows from the shaft seal only along the path with the minimum resistance, but the dirty grease outside the path can be left in situ and cannot be replaced, so the lubricating mode also has the defect of incomplete lubrication. In addition, the manual grease filling device is used for lubricating all bearing lubrication points on each pumping unit through the grease nipple, so that the labor intensity is high, the pumping units need to climb to a high place for lubrication, the operation risk is high, and moreover, due to the fact that the distribution positions of the oil wells are scattered, the first-line staff is difficult to perform timely lubrication operation on each pumping unit.

Disclosure of Invention

The utility model provides an automatic grease injection device for a lubrication point of a pumping unit, which aims at solving the problems that the lubrication is not thorough when a grease gun is used for lubricating bearings of the pumping unit at present, and the defects that the labor intensity of field workers is high, the operation danger is high, and timely lubrication operation is difficult to perform on each pumping unit. And the automatic grease injection device for the lubrication points can perform timely lubrication operation on each pumping unit, and can also greatly reduce the workload of on-site workers.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

an automatic grease injection device for a lubrication point of an oil pumping unit, comprising:

a lubrication pump for pumping the lubricating grease;

the grease distributor is provided with at least four oil outlets, an oil inlet of the grease distributor is communicated with an outlet of the lubricating pump, the grease distributor is communicated with four high-pressure resin hoses through the oil outlets, and the outlets of the high-pressure resin hoses are respectively arranged at the lubricating points of the bearings;

a flow sensor for monitoring the amount of lubricating grease flowing through each high-pressure resin hose;

and the controller is used for controlling the oil outlet which is switched to be communicated by the grease distributor and controlling the lubricating pump to operate according to the quantity of the lubricating grease flowing through the high-pressure resin hose.

Preferably, the grease dispenser is a progressive dispenser, a displacement sensor for monitoring the action of the piston is arranged on any plunger of the progressive dispenser, the displacement sensor is electrically connected with a controller, and the controller is further electrically connected with an alarm module.

Preferably, the controller is further electrically connected with a communication module for sending alarm signals and receiving control signals.

Preferably, the lubrication pump is arranged at the base of the pumping unit, the grease distributor is arranged on a bracket of the pumping unit, one ends of the four high-pressure resin hoses are communicated with different oil outlets of the grease distributor, and the other ends of the four high-pressure resin hoses are fixedly arranged at lubrication points of the bearings respectively.

Preferably, a spiral rib is arranged on the pipe wall of the high-pressure resin hose, and the spiral rib is a bulge formed on the pipe wall.

Preferably, a spiral steel wire ring is arranged on the inner side of the pipe wall of the high-pressure resin hose, and the spiral steel wire ring and the spiral ribs are mutually matched.

Preferably, a pipeline is communicated between the lubricating pump and the grease distributor, and a check valve and a filter are installed on the pipeline.

Preferably, the inlet of the lubricating pump is connected with a container for storing lubricating grease, and the container is provided with a transparent container wall.

The technical scheme of the utility model has the beneficial technical effects that:

the lubrication pump pumps the lubrication grease to the grease distributor, then the grease distributor can respectively convey the pressurized grease to each high-pressure resin hose, each high-pressure resin hose can convey the pressurized grease to the lubrication point of each bearing, the relative position between each bearing and the grease distributor can be changed in the operation process of the pumping unit, and the high-pressure resin hose can be deformed and bent, so that the pressurized grease is conveyed to each bearing, when the pressurized grease reaches the lubrication point of the bearing, the bearing is in a rolling working state, the pressurized grease enters from one side of the bearing cover, along with the movement of the bearing, the newly injected pressurized grease can gradually replace dirty grease between all movement surfaces in the bearing under the grinding disc effect, and the dirty grease is pushed to flow out from the other side of the bearing cover, so that the bearing is fully and thoroughly lubricated. In addition, the automatic grease injection device of the lubricating points automatically operates, and the flow sensor monitors the amount of the pressurized grease flowing through each high-pressure resin hose, so that the pressurized grease flowing to the lubricating points of each bearing through the high-pressure resin hose is ensured to be enough to completely discharge dirty grease in the bearing. By using the automatic grease injection device for the lubrication points, timely lubrication operation can be performed on each pumping unit, meanwhile, the work load of on-site workers is greatly reduced, only the lubrication pump is required to be lubricated and maintained, the bearings do not need to be lubricated from high places by the workers, and the accident that the workers fall from high places is avoided.

The movement of each plunger in the progressive dispenser has the characteristic of sequential action, and the following plunger can be started under the action of the grease with pressure only after the previous plunger completes the oiling action. When any one of the lubricating points is clogged, the plunger stops reciprocating movement, and the whole dispenser stops supplying lubricating grease. According to the interlocking characteristic of the dispenser, a displacement sensor is arranged on any plunger, so that the working state of the progressive dispenser can be monitored, if the plunger stops reciprocating due to blockage of a lubricating point, the problem can be quickly known by using the displacement sensor, and an alarm module sends alarm information to remind workers of maintenance.

And thirdly, when the plunger of the progressive distributor stops reciprocating motion, an alarm signal can be transmitted to the management machine room through the communication module, and a control signal can be sent out remotely by a worker to adjust the running condition of the lubricating pump, so that the management and the use are convenient.

And (IV) the lubricating pump is arranged at the base of the oil pumping unit, so that lubricating grease can be conveniently supplemented, the grease distributor is arranged on the bracket, and a high-pressure resin hose is arranged between the grease distributor and the lubricating points of all bearings for communication. When the oil pumping unit operates, the positions between the oil distributor and the middle bearing are not changed relatively, the high-pressure resin hose communicated to the lubricating point of the middle bearing is not deformed, and the lubricating oil can be stably conveyed; the high-pressure resin hose communicated with the tail bearing and the lubrication points of the two crank pin bearings deforms along with the movement of the pumping unit, and meanwhile, the lubricating grease can be stably conveyed to the lubrication points of the corresponding bearings, so that the lubrication of the lubrication points of the bearings can be ensured during the operation of the pumping unit.

And fifthly, the container wall is transparent, so that on-site workers can conveniently observe the residual quantity of the lubricating grease in the container, and the lubricating grease in the container is timely supplemented.

Drawings

Fig. 1 shows a schematic structural diagram of an automatic grease injection device for a lubrication point of a pumping unit in an embodiment of the utility model;

fig. 2 shows a schematic diagram of the cooperation of the high-pressure resin hose and the pumping unit in the embodiment of the utility model.

The reference numerals in the drawings:

1-a lubrication pump; 11-a filter; 12-uniflow valve; 13-a flow sensor; 2-grease dispenser; 21-an oil outlet; 22-displacement sensor; 3-high pressure resin hose; 4-pumping unit; 41-a middle bearing; 42-tail bearings; 43-crank pin bearing; 5-a controller; 51-an alarm module; 52-communication module.

Detailed Description

In order to make the purposes, technical schemes and advantages of the utility model more clear, the utility model provides an automatic grease injection device for a lubrication point of a pumping unit, which is further described in detail below with reference to the accompanying drawings and the detailed description. The advantages and features of the present utility model will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the utility model. For a better understanding of the utility model with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that any modifications, changes in the proportions, or adjustments of the sizes of structures, proportions, or otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or essential characteristics thereof.

Examples

The technical scheme of the automatic grease injection device for the lubrication points of the pumping unit of the utility model will be described in detail below with reference to fig. 1 and 2 and the specific embodiment.

As shown in fig. 1 and 2, an automatic grease injection device for a lubrication point of a pumping unit according to this embodiment includes:

a lubrication pump 1 for pumping lubricating grease;

the grease distributor 2 is provided with at least four oil outlets 21, the oil inlet of the grease distributor 2 is communicated with the outlet of the lubricating pump 1, the grease distributor 2 is communicated with four high-pressure resin hoses 3 through the oil outlets 21, and the outlets of the high-pressure resin hoses 3 are respectively arranged at the lubricating points of the bearings;

a flow sensor 13 for monitoring the amount of lubricating grease flowing through each of the high-pressure resin hoses 3;

the controller 5 controls the oil outlet 21 of the grease distributor 2 to switch communication and controls the operation of the lubricating pump 1 according to the amount of the lubricating grease flowing through the high-pressure resin hose 3.

The lubrication pump 1 pumps the lubrication grease to the grease distributor 2 during the operation of the pumping unit 4, then the grease distributor 2 can respectively convey the belt-pressure grease to each high-pressure resin hose 3, each high-pressure resin hose 3 conveys the belt-pressure grease to the lubrication point of each bearing, when the belt-pressure grease reaches each bearing, the bearing is in a rolling working state, the belt-pressure grease enters from one side of the bearing cover, along with the movement of the bearing, the newly injected belt-pressure grease can gradually replace the dirty grease between all the movement surfaces in the bearing under the millstone effect, and the dirty grease is pushed to flow out from the other side of the bearing cover, so that the bearing is fully and thoroughly lubricated. In addition, the automatic grease injection device for the lubrication points automatically operates, the flow sensor 13 monitors the amount of the pressurized grease flowing through each high-pressure resin hose 3, and when the pressurized grease flowing to each bearing lubrication point through the high-pressure resin hose 3 is enough to completely discharge the dirty grease in the bearing, the controller 5 controls the grease distributor 2 to output the pressurized grease to the other oil outlet 21, so that the lubrication points of the other bearing are lubricated. By using the automatic grease injection device for the lubrication points, timely lubrication operation can be automatically carried out on each pumping unit 4, the work load of on-site workers is greatly reduced, the lubrication pump 1 is only required to be lubricated and maintained regularly, the workers are not required to go to the high place to lubricate each bearing, and the accident that the workers fall from the high place is avoided.

Specifically, the grease dispenser 2 is a progressive dispenser having four outlets 21, and the supply of grease under pressure to the dispenser may be continuous or intermittent. The plunger pair of each working piece of the progressive distributor is driven by the grease with pressure, and then sequentially acts after the last circulation action to finish respective plunger strokes, quantitative lubricant is output to the oil outlet 21 of the grease distributor 2, the pressurized grease flowing out of each oil outlet 21 is conveyed to the lubrication point of one bearing, the plunger pair has the characteristic of sequential action, and when any lubrication point is blocked, the plunger stops reciprocating motion, so that the whole distributor stops supplying the lubricating grease. According to the interlocking characteristic of the dispenser, a displacement sensor 22 is arranged on any plunger, whether the plunger moves regularly or not is monitored by the displacement sensor 22, the working state of the progressive dispenser can be monitored, the displacement sensor 22 transmits the monitored displacement data to the controller 5, and the controller 5 analyzes the displacement data to know whether the grease dispenser 2 stops moving or not. The controller 5 is also electrically connected with an alarm module 51, and if the grease dispenser 2 is found to stop moving, the controller 5 controls the alarm module 51 to send out alarm information to remind a worker to maintain. The alarm module 51 may include an alarm lamp with which an optical signal is emitted, so that a field worker can find the grease dispenser 2 having a problem.

When the progressive distributor is selected, the plunger stroke of each plunger pair is fixed, and quantitative oil with pressure can be conveyed to the lubrication points of each bearing, so that in order to monitor the quantity of the lubricating oil flowing through each high-pressure resin hose 3, the flow sensor 13 can be directly arranged at the oil inlet of the oil distributor 2, the displacement duration of a plunger is judged by using the displacement information monitored by the displacement sensor 22, the quantity of the oil with pressure flowing into the oil inlet of the oil distributor 2 in the duration is monitored, and the quantity of the oil with pressure output to the corresponding oil outlet 21 when the plunger is displaced can be known without arranging the flow sensor 13 at each high-pressure resin hose 3.

Further, the controller 5 is further electrically connected with a communication module 52 for sending an alarm signal and receiving a control signal, and the communication module 52 can be used for communicating with a management terminal of a machine room, so that a worker can know that the working state of the grease dispenser 2 is problematic, and timely maintenance of the grease dispenser 2 is ensured. The operator can also send a control command from the management terminal to the communication module 52, and the controller 5 adjusts the operating states of the grease dispenser 2 and the lubrication pump 1.

Specifically, the lubrication pump 1 in the embodiment is installed on the base of the pumping unit 4, so that the maintenance of on-site workers is facilitated, the grease distributor 2 is installed on the bracket of the pumping unit 4 and is close to the middle bearing, and when the pumping unit 4 works, the relative position between the grease distributor 2 and the middle bearing cannot be changed relatively; the relative position between the high-pressure resin hose 3 and the tail bearing 42 and the crank pin bearing 43 is changed, and in order to ensure that the high-pressure resin hose 3 is not broken or separated, the high-pressure resin hose 3 is used for conveying the belt grease to the lubrication points of the bearings, and the high-pressure resin hose 3 can be used for passing the belt grease and can also be bent and deformed so as not to be broken in the operation process of the pumping unit 4. For the four high-pressure resin hoses 3, the high-pressure resin hose 3 in communication with the middle bearing 41 is fixedly mounted directly on the bracket of the pumping unit 4; the high-pressure resin hose 3 communicated with the tail bearing 42 comprises two sections of pipe structures fixedly arranged on a bracket and a walking beam of the pumping unit 4, and an unfixed section of pipe structure is reserved between the two sections of pipe structures so that the two sections of pipe structures can relatively rotate along with the operation of the pumping unit 4; the high pressure resin hose 3, which is in communication with the crank pin bearing 43, includes three pipe structures fixedly installed on the bracket, the walking beam and the connecting rod of the pumping unit 4, and an unfixed one pipe structure is reserved between two adjacent pipe structures, so that the two adjacent pipe structures can relatively rotate along with the operation of the pumping unit 4. In the present embodiment, the multi-stage tube structure included in the high-pressure resin hose 3 is defined only for convenience of description, and each high-pressure resin hose 3 is actually an integrated hose. The pumping unit 4 is fixedly provided with a clamp or a pipe clamp at a position corresponding to the outlet of each high-pressure resin hose 3, and the outlet end of the high-pressure resin hose 3 passes through the clamp or the pipe clamp so as to be fixedly communicated with each bearing lubrication point.

Spiral ribs are integrally formed on the pipe wall of the high-pressure resin hose 3, and the spiral ribs are bulges formed on the pipe wall. In addition, a spiral steel wire ring is arranged on the inner side of the pipe wall of the high-pressure resin hose 3, and the spiral steel wire ring and the spiral ribs are mutually matched. The spiral ribs and the spiral bead rings are used for supporting the pipe wall of the high-pressure resin hose 3 when the high-pressure resin hose 3 is bent and deformed, so that the pipe wall of the high-pressure resin hose 3 is not prone to sinking, the flow stability of the pressurized grease flowing through the high-pressure resin hose 3 can be ensured, and the error between the pressurized grease flow measured by the flow sensor 13 and the amount of the lubricating grease injected into the bearing lubrication point is reduced.

Further, a pipe is provided between the lubrication pump 1 and the grease distributor 2, and a check valve 12 and a filter 11 are installed on the pipe, and a flow sensor 13 in this embodiment is also installed on the pipe. During the flow of the hydraulic grease from the lubrication pump 1 toward the grease dispenser 2, the hydraulic grease passes through the filter 11, the check valve 12, and the flow sensor 13 in this order.

Further, the inlet of the lubricating pump 1 is communicated with a container (not shown in the figure) for storing lubricating grease, the container is provided with a transparent container wall, and the material of the container can be toughened glass or other materials. The container wall is transparent, so that on-site workers can conveniently know the allowance of the lubricating grease in the container in real time, and the lubricating grease can be conveniently and timely supplemented to the container.

According to the automatic grease injection device for the pumping unit lubrication points in the scheme, the pumping unit 4 can be lubricated and maintained without stopping, when grease with pressure enters from the bearing cover of the bearing, dirty grease between all movement surfaces is gradually replaced along with the movement of the bearing, and then the grease flows out from the other side of the bearing, so that the grease can be completely and thoroughly lubricated. And lubrication is performed without stopping, so that the operation time rate of the pumping unit 4 is improved, and the stable operation of production is ensured. The staff only need regularly to annotate lubricating grease at the ground to the container to and to the lubrication pump 1 maintenance work can, stopped the emergence of staff's accident of falling from the high altitude when lubrication maintenance, also can carry out the lubrication operation voluntarily in adverse circumstances.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. An automatic grease injection device for a lubrication point of an oil pumping unit, which is characterized by comprising:

a lubrication pump for pumping the lubricating grease;

2. The automatic grease injecting device for the lubrication point of the pumping unit according to claim 1, wherein the grease distributor is a progressive distributor, a displacement sensor for monitoring the action of the piston is arranged on any plunger of the progressive distributor, the displacement sensor is electrically connected with a controller, and the controller is further electrically connected with an alarm module.

3. The automatic grease injecting device for the lubrication point of the pumping unit according to claim 2, wherein the controller is further electrically connected with a communication module for sending an alarm signal and receiving a control signal.

4. The automatic grease injecting device for the lubrication points of the pumping unit according to claim 1, wherein the lubrication pump is arranged at the base of the pumping unit, the grease distributor is arranged on a bracket of the pumping unit, one ends of four high-pressure resin hoses are communicated with different oil outlets of the grease distributor, and the other ends of the four high-pressure resin hoses are fixedly arranged at the lubrication points of the bearings respectively.

5. The automatic grease injecting device for the lubrication point of the pumping unit according to claim 1, wherein the pipe wall of the high pressure resin hose is provided with a spiral rib, and the spiral rib is a protrusion formed on the pipe wall.

6. The automatic grease injecting device for the lubrication point of the pumping unit according to claim 5, wherein a spiral steel wire ring is arranged on the inner side of the pipe wall of the high-pressure resin hose, and the spiral steel wire ring and the spiral rib are mutually matched.

7. The automatic grease injecting device for the lubrication point of the pumping unit according to claim 1, wherein a pipeline is arranged between the lubrication pump and the grease distributor for communication, and the pipeline is provided with a check valve and a filter.

8. An automatic grease filling device for a lubrication point of a pumping unit according to claim 1, wherein the inlet of the lubrication pump is connected with a container for storing grease, and the container has a transparent container wall.