Lubricating grease draw-off pump

Abstract

The utility model discloses a lubricating grease draw-off pump which comprises a pump body, a first draw-off opening is formed in one side of the top end of the pump body, and a second draw-off opening is formed in the position, right opposite to the first draw-off opening, of the bottom end of the pump body. The lubricating grease draw-off pump has the advantages that an air pressure source can be adopted as a power source, energy conservation and environmental protection are achieved, waste lubricating grease in a wind power main shaft bearing seat can be effectively drawn out in cooperation with reciprocating motion of an air cylinder, meanwhile, the lubricating grease draw-off pump can be used in a multi-stage series connection mode, and therefore long-distance discharging of the lubricating grease is achieved. The lubricating grease draw-off pump can be flexibly used in a multifunctional mode, can be matched with other draw-off devices to achieve long-distance conveying of lubricating grease, and due to the fact that automatic draw-off and cleaning of the lubricating grease in the wind power main shaft bearing seat can be achieved under the action of the lubricating grease draw-off pump, tedious operation of manual cleaning is omitted, and working efficiency is improved. Therefore, the cleaning efficiency of the waste lubricating grease in the wind power main shaft bearing seat is improved while the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power main shaft bearing seat lubricating grease cleaning technical field, concretely relates to a lubricating grease extraction pump. BACKGROUND

[0002] During the operation of the wind power main shaft bearing seat, there is rolling friction and a small amount of sliding friction between the rolling balls and the retainer, the inner ring and the outer ring of the bearing, and after long-time work, the parts will be worn out, so a large amount of lubricating grease is often injected into the wind power main shaft bearing seat, and the lubricating grease needs to be discharged after the wind power main shaft bearing seat runs for a long time.

[0003] At present, when the waste lubricating grease in the wind power main shaft is cleaned, the wind power main shaft bearing seat is mainly disassembled manually, and then cleaning work is carried out, the whole process is time-consuming and laborious, and the work requires high requirements for workers, and there is a lack of an effective lubricating grease extraction device, which is low in work efficiency and high in labor cost. UTILITY MODEL CONTENTS

[0004] (I) Technical problem to be solved

[0005] The technical problem to be solved by the utility model is to provide a lubricating grease extraction pump which can effectively extract the waste lubricating grease of the wind power main shaft bearing seat, has high extraction efficiency and good use flexibility.

[0006] (II) Technical scheme

[0007] The utility model realizes the following technical scheme: the utility model provides a lubricating grease extraction pump, including the pump body, the pump body top one side installs the extraction port no.

[0008] Further, the extraction port no. 1 and the extraction port no. 2 are welded with the pump body, and the multipurpose interface is screw-connected with the pump body.

[0009] Further, the pump body is a hollow structure, and the discharge port, the extraction port no. 1, the extraction port no. 2 and the multipurpose interface are all in communication with the pump body.

[0010] Further, the pump piston is in sliding fit with the pump body, and the pump piston is connected with the cylinder through the floating joint.

[0011] Further, the throttle valve is bolted with the shell of the cylinder, and the throttle valve is two, and the two throttle valves are located on both sides of the upper end of the cylinder.

[0012] Further, the cylinder is inserted with the mounting plate, and the magnetic switch is bolted with the cylinder.

[0013] Further, one end of the supporting rod is screwed with the pump body, and the other end of the supporting rod is screwed with the mounting plate.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses a kind of lubricating grease extraction pumps, including pump body, cylinder, supporting rod, magnetic switch, pump piston, floating joint, throttle valve and installation plate, the pump body is connected with the cylinder, and the cylinder is connected with the supporting rod, and the supporting rod is connected with the installation plate, and the installation plate is connected with the magnetic switch, and the magnetic switch is connected with the pump piston, and the pump piston is connected with the floating joint, and the floating joint is connected with throttle valve. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the structure diagram of the lubricating grease extraction pump described in the utility model;

[0018] Fig. 2 It is the left view of the lubricating grease extraction pump described in the utility model;

[0019] Fig. 3 It is the planar section view of the lubricating grease extraction pump described in the utility model;

[0020] Fig. 4 It is the principle diagram of the lubricating grease extraction pump described in the utility model when working.

[0021] The following is explained as follows:

[0022] 1, pump body; 2, extraction port one; 3, pump piston; 4, floating joint; 5, magnetic switch; 6, air cylinder; 7, throttle valve; 8, mounting plate; 9, support rod; 10, discharge port; 11, extraction port two; 12, multi-purpose interface. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0024] As Figs. 1-4 shown, the grease extraction pump in the embodiment comprises a pump body 1, an extraction port one 2 is installed on one side of the top end of the pump body 1, an extraction port two 11 is installed on the bottom end of the pump body 1 opposite the extraction port one 2, a multi-purpose interface 12 is further installed on one side wall of the pump body 1, a discharge port 10 is installed at the oil outlet of the pump body 1, one support rod 9 is respectively installed at the four corners of the side wall of the pump body 1 opposite the discharge port 10, the one ends of the four support rods 9 away from the pump body 1 are jointly connected with a mounting plate 8, an air cylinder 6 is installed in the middle of the mounting plate 8, a throttle valve 7 for controlling the extension and retraction speed of the air cylinder 6 is installed at the air hole of the air cylinder 6, a magnetic switch 5 for controlling the extension and retraction stroke of the air cylinder 6 is installed on one side of the air cylinder 6, a floating joint 4 is connected to the exposed end of the piston rod of the air cylinder 6, a pump piston 3 is connected to the side of the floating joint 4 away from the air cylinder 6, the pump piston 3 is used to isolate the cavity of the pump body 1 from the external environment, so as to realize the sealing of the cavity of the pump body 1, the pump body 1 is used to contain waste grease, and the grease is discharged at the appropriate time, when the grease extraction pump is used as a driven extraction pump, the multi-purpose interface 12 is in an idle state at this time, only the extraction port one 2, the extraction port two 11 and the discharge port 10 are working at this time; when the grease extraction pump does not actively extract the grease in the wind power main shaft bearing seat, the waste grease is only discharged to the waste liquid tank by external extraction, the extraction port one 2 and the extraction port two 11 are connected to the air through the one-way valve at this time, at this time, the waste grease can be extracted to the cavity of the pump body 1 through other devices (such as a vacuum conveyor), the multi-purpose interface 12 is connected to the discharge port of the other device (such as a vacuum conveyor), because there is often a lack of power during the extraction of the grease by the other device (such as a vacuum conveyor), when the pipeline is too long, it cannot provide enough power to further transport the grease to the waste liquid tank, at this time, the multi-purpose interface 12 can be connected to the grease extraction pump, under the strong power of the air cylinder 6, the waste grease can be smoothly transported to the waste liquid tank, and because of the effect of the one-way valve connected to the extraction port one 2 and the extraction port two 11, the grease will not be discharged through the extraction port one 2 and the extraction port two 11.

[0025] As Figs. 1-4As shown in the figure, in this embodiment, the extraction port one 2 and the extraction port two 11 are welded with the pump body 1, the multi-purpose interface 12 is threadedly connected with the pump body 1, the extraction port one 2 and the extraction port two 11 can conveniently extract the waste lubricating grease in the bearing seat of the wind power main shaft into the cavity in the pump body 1 when the lubricating grease extraction pump is used as a positive extraction pump, and the discharge port 10 can discharge the waste lubricating grease in the cavity of the pump body 1, when the lubricating grease extraction pump is not used as a positive pump to extract the lubricating grease, the multi-purpose interface 12 is connected with the discharge port of other devices, and the waste lubricating grease can be smoothly transported to the waste liquid tank under the strong power of the cylinder 6.

[0026] As shown in the figure, Figs. 1-4 In this embodiment, the pump body 1 is a hollow structure, the discharge port 10, the extraction port one 2, the extraction port two 11 and the multi-purpose interface 12 are in communication with the pump body 1, the pump piston 3 is in sliding fit with the pump body 1, the pump piston 3 is connected with the cylinder 6 through the floating joint 4, the cylinder 6 drives the pump piston 3 to move, and the waste lubricating grease in the pump body 1 can be conveniently discharged to the outside waste liquid tank through the discharge port 10.

[0027] As shown in the figure, Figs. 1-4 In this embodiment, the throttle valve 7 is bolted with the shell of the cylinder 6, there are two throttle valves 7, and the two throttle valves 7 are located on both sides of the upper end of the cylinder 6, the throttle valve 7 is mainly used for controlling the gas flow entering the cylinder 6, thereby controlling the speed of the reciprocating motion of the cylinder 6, the cylinder 6 is inserted with the mounting plate 8, the magnetic switch 5 is bolted with the cylinder 6, the magnetic switch 5 is mainly used for detecting the motion position of the cylinder 6, one end of the support rod 9 is threadedly connected with the pump body 1, the other end of the support rod 9 is threadedly connected with the mounting plate 8, and the support rod 9 is mainly used for connecting the pump body 1 and the mounting plate 8, and plays a supporting role.

[0028] The specific implementation process of the embodiment is as follows: during the extraction of the waste lubricating grease in the wind power main shaft bearing seat, when the lubricating grease extraction pump is used as a driving extraction pump, the extraction port one 2, the extraction port two 11 and the discharge port 10 are used, and the multipurpose interface 12 is idle, that is, not connected with any components, at this time, the extraction port one 2 and the extraction port two 11 are respectively connected with the one-way valve and connected in parallel to the oil discharge port of the wind power main shaft bearing seat, and the discharge port 10 is also connected with the one-way valve, which can prevent the discharged lubricating grease from being sucked back into the pump body 1, when the cylinder 6 moves to the far right end, the pump piston 3 is driven to move to the far right end of the pump body 1 through the floating joint 4, at this time, the negative pressure is formed in the cavity of the pump body 1, and then the negative pressure is formed at the extraction port one 2 and the extraction port two 11, and then the waste lubricating grease at the oil discharge port of the wind power main shaft bearing seat connected with the extraction port one 2 and the extraction port two 11 is extracted into the cavity of the pump body 1, and then under the instruction of the external controller, the cylinder 6 moves to the far left end; at this time, the pump piston 3 in the cavity of the pump body 1 is connected with the piston rod of the cylinder 6 through the floating joint 4 and also moves to the far left end, the left end space of the cavity of the pump body 1 is compressed to the minimum, and the extracted lubricating grease in the cavity of the pump body 1 is discharged to the waste liquid tank through the discharge port 10, and because the extraction port one 2 and the extraction port two 11 are provided with the one-way valve, it is ensured that the lubricating grease will not be squeezed back into the wind power main shaft bearing seat, and the continuous reciprocating action of the cylinder 6 can realize the uninterrupted operation of the lubricating grease extraction and the lubricating grease discharge, and finally the lubricating grease in the wind power main shaft bearing seat is exhausted, wherein whether the cylinder 6 reaches the far left end or the far right end is detected by the magnetic switch 5 arranged on the cylinder 6, and the detection signal is transmitted to the system controller, and the controller controls the electromagnetic valve to act through the instruction, and the movement direction of the cylinder 6 is switched, and the detection and control technology of the cylinder 6 is a conventional technology, which will not be described here;

[0029] When the multipurpose interface 12 is connected to other extraction devices, the extraction port one 2 and the extraction port two 11 are connected with the atmosphere, and the multipurpose interface 12 receives the lubricating grease delivered from other extraction devices, when the cylinder 6 drives the pump piston 3 to move to the far left end through the floating joint 4, the left end space of the cavity of the pump body 1 is compressed to the minimum, and the received waste lubricating grease in the cavity of the pump body 1 is discharged to the waste liquid tank, and then the cylinder 6 drives the pump piston 3 to move to the far right end, and waits for the reception of the next round of lubricating grease, in this process, because the negative pressure is formed in the cavity of the pump body 1, and the extraction port one 2 and the extraction port two 11 are connected with the atmosphere through the one-way valve, the negative pressure in the cavity of the pump body 1 during the movement process can be effectively compensated, and the movement process can be smoothly carried out;

[0030] In addition, it should be pointed out that the lubricating grease extraction pump with the structure can be used in series with multiple sets of lubricating grease extraction pumps in actual work, and when used in multiple stages in series, the discharge port 10 of the lubricating grease extraction pump is connected with the multipurpose interface 12 of the next stage lubricating grease extraction pump, and the long-distance lubricating grease delivery operation can be realized.

[0031] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A grease extraction pump characterized by: The utility model provides a pump, including pump body (1), pump body (1) top end one side installs and draws mouth no. (2), pump body (1) bottom end is opposite and installs and draws mouth no. (11) at mouth no. (2), pump body (1) one side wall still installs multipurpose interface (12), the oil outlet on pump body (1) installs the discharge port (10), and the discharge port (10) opposite side wall four corners of pump body (1) installs a support rod (9) respectively, four support rod (9) back to pump body (1) one end common connection has mounting plate (8), mounting plate (8) middle part installs cylinder (6), cylinder (6) on the air hole of self-contained installation controls cylinder (6) telescopic speed's throttle valve (7), cylinder (6) one side installation is used for controlling cylinder (6) telescopic stroke's magnetic switch (5), cylinder (6) on the piston rod of self-contained exposure end connection has floating joint (4), floating joint (4) back to cylinder (6) one side connection has pump piston (3).

2. A lubricating grease extraction pump according to claim 1, characterised in that: The draw mouth no. (2) and the draw mouth no. (11) are welded with the pump body (1), and the multipurpose interface (12) is threadedly connected with the pump body (1).

3. A lubricating grease extraction pump according to claim 1, characterized in that: The pump body (1) is hollow, and the discharge port (10), the draw mouth no. (2), the draw mouth no. (11) and the multipurpose interface (12) are communicated with the pump body (1) in.

4. A lubricating grease extraction pump according to claim 1, characterized in that: The pump piston (3) is slidably connected with the pump body (1), and the pump piston (3) is connected with the cylinder (6) through the floating joint (4).

5. A grease extraction pump according to claim 4, characterised in that: The throttle valve (7) is bolted with the shell of the cylinder (6), and the throttle valve (7) has two, and the two throttle valves (7) are located on both sides of the upper end of the cylinder (6).

6. A lubricating grease extraction pump according to claim 1, characterized in that: The cylinder (6) is inserted with the mounting plate (8), and the magnetic switch (5) is bolted with the cylinder (6).

7. A lubricating grease extraction pump according to claim 6, characterised in that: One end of the support rod (9) is threadedly connected with the pump body (1), and the other end of the support rod (9) is threadedly connected with the mounting plate (8).

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