Plunger pump lubricating system

Abstract

The plunger pump lubricating system comprises a system body and a plunger pump body, the system body comprises a lubricating oil storage tank, a distributor, an oil collecting tank and a closed oil collecting tank, a base is fixedly arranged at the bottom of the lubricating oil storage tank, and flow dividing pipes are fixedly arranged at the bottom of the distributor at equal intervals. The oil collecting tank is installed at the bottom of the plunger pump body, redundant lubricating oil of the plunger pump can be recycled, the recycled lubricating oil enters the closed oil collecting tank through the three-way valve, meanwhile, the lubricating oil is filtered through the filter screen, and the filtered lubricating oil is discharged into the distributor through the circulating oil pump, the circulating pipe and the second one-way valve; according to the lubricating system, lubricating oil can be conveniently recycled, the defects that an open type lubricating system is large in oil consumption and poor in economical efficiency and needs to be shut down for refueling are overcome, when one path of oil circulation breaks down, the other path of oil can be switched to rotate in time, and normal operation of the lubricating system is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to plunger pump lubrication technical field, concretely is a kind of plunger pump lubrication system. BACKGROUND

[0002] Cement truck plunger pump is used to transport cement slurry and other cementing fluid main equipment, due to reciprocating movement of plunger during construction, continuously rub with packing, need to be lubricated with lubricating oil, reduce movement resistance.

[0003] At present, plunger lubrication system generally uses open lubrication system, that is, compressed air is used to provide power for lubricating oil in storage tank, lubricating oil flows to lubrication point to lubricate plunger and sealing packing, reduce friction, reduce friction temperature, prolong the service life of plunger and sealing packing, and lubricating oil completing lubrication function returns to open lubrication system oil collecting tank through oil collecting groove in lower part of connecting rod box of plunger pump, open lubrication system has simple structure, reliable lubrication, oil quantity is adjustable, the shortcoming is that oil consumption is large, and economic efficiency is poor, and lubricating oil is consumed, and it needs to be stopped for refueling, which affects the continuity of lubrication, and some lubrication systems using pneumatic or electric diaphragm pump as power source may have abnormal pump failure, which affects the normal operation of equipment.

[0004] Therefore, the utility model provides a kind of plunger pump lubrication system. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a kind of plunger pump lubrication system to solve the problems raised in the above background art, the utility model is set by closed oil collecting tank, can recover the excess lubricating oil of plunger pump, filter and recycle, overcome the shortcomings of open lubrication system, such as large oil consumption, poor economic efficiency, need to stop for refueling, and when one-way oil circulation fails, it can be switched to another-way oil rotation in time, to ensure the normal operation of the lubrication system.

[0006] In order to achieve the above purpose, the utility model is realized by the following technical scheme: a kind of plunger pump lubrication system, including system body and plunger pump body, the system body includes lubricating oil storage tank, distributor, oil collecting groove and closed oil collecting tank, the bottom of the lubricating oil storage tank is fixedly provided with base, the bottom of the distributor is equidistantly fixedly provided with shunt pipe, the shunt pipe is fixedly communicated between the oil port of the top of plunger pump body, the oil collecting groove is clamped and installed at the bottom of plunger pump body, three-way valve is communicated and installed between the bottom of the oil collecting groove and the closed oil collecting tank, two inner cavities are formed in the inside of the closed oil collecting tank, filter mechanism is installed in the inside of two inner cavities, and circulating oil pump is fixedly installed on the outer wall of the closed oil collecting tank on one side of two inner cavities.

[0007] Further, the top side of the lubricating oil storage tank is fixedly installed with a spray pump, the inlet of the spray pump is fixedly installed with a suction pipe, the suction pipe is fixedly arranged in the interior of the lubricating oil storage tank, and the top end of the lubricating oil storage tank is fixedly provided with a refueling pipe on the side corresponding to the spray pump.

[0008] Further, the outlet of the spray pump is fixedly installed with a first check valve, and the first check valve is fixedly communicated with one end of a distributor through a connecting pipe.

[0009] Further, the front view of the oil collecting groove is in a U shape, screw holes are symmetrically and equidistantly arranged in the interiors of both ends of the oil collecting groove, and a sealing gasket is fixedly arranged between the interior side of the oil collecting groove and the bottom of the plunger pump body.

[0010] Further, the side wall of the closed oil collecting tank is fixedly installed with a mounting plate corresponding to the bottom of the circulating oil pump, and the circulating oil pump is fixedly installed on the top of the mounting plate.

[0011] Further, the inlet of the circulating oil pump is arranged in the interior of the inner cavity, the outlets of the two circulating oil pumps are fixedly installed with a circulating pipe, and the bottoms of the two inner cavities are communicated with each other.

[0012] Further, the other end of the distributor is fixedly installed with a second check valve, and the top end of the circulating pipe is fixedly connected with one end of the second check valve.

[0013] Further, the filtering mechanism comprises a filter screen, the outer end of the filter screen is fixedly installed with a sealing plate, fixed holes are arranged in the corresponding positions of the four corners of the sealing plate, and the filter screen is arranged below the bottoms of both ends of the three-way valve.

[0014] The plunger pump lubricating system has the advantages that the plunger pump lubricating system can recycle the excess lubricating oil of the plunger pump, the recycled lubricating oil enters the interior of the closed oil collecting tank through the three-way valve, the lubricating oil is filtered through the filter screen, the filtered lubricating oil is discharged into the distributor through the circulating oil pump, the circulating pipe and the second check valve, the lubricating oil can be conveniently recycled, the shortcomings of the open lubricating system, such as large oil consumption, poor economy and the need of stopping for oiling, are overcome, when one of the oil circulation routes fails, the lubricating system can be switched to the other oil circulation route in time, the normal operation of the lubricating system is ensured, and the lubricating oil storage tank and the spray pump can add lubricating oil to the distributor to supplement the consumption of the lubricating oil. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure diagram of the plunger pump lubricating system.

[0016] Figure 2The utility model relates to a front view sectional view of plunger pump lubricating system,

[0017] Figure 3 The utility model relates to a front view sectional view of plunger pump lubricating system, Figure 2 The enlarged view of A in the middle,

[0018] Figure 4 The utility model relates to a front view sectional view of plunger pump lubricating system,

[0019] In the figure: 1, base, 2, lubricating oil storage tank, 3, oil filling pipe, 4, spray pump, 5, first check valve, 6, connecting pipe, 7, distributor, 8, second check valve, 9, shunt pipe, 10, oil collecting groove, 11, sealing pad, 12, screw hole, 13, three-way valve, 14, closed oil collecting tank, 15, mounting plate, 16, circulating oil pump, 17, circulating pipe, 18, plunger pump body, 19, filter screen, 20, sealing plate, 21 fixed hole. Specific implementation

[0020] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific implementation modes.

[0021] Please refer to Figures 1 to 4 The utility model provides a technical scheme: a plunger pump lubricating system, including system body and plunger pump body 18, the system body includes lubricating oil storage tank 2, distributor 7, oil collecting groove 10 and closed oil collecting tank 14, the bottom of lubricating oil storage tank 2 is fixedly provided with base 1, the bottom of distributor 7 is equidistantly fixedly provided with shunt pipe 9, the shunt pipe 9 is fixedly communicated between the oil port of plunger pump body 18 top, the oil collecting groove 10 is clamped and installed at the bottom of plunger pump body 18, the bottom of oil collecting groove 10 is communicated with closed oil collecting tank 14 and is installed with three-way valve 13, the inside of closed oil collecting tank 14 is provided with two inner cavities, two inner cavities are installed with filter mechanism, one side of two inner cavities corresponds and is fixedly installed with circulating oil pump 16 on the outer wall of closed oil collecting tank 14, through oil collecting groove 10, the excess lubricating oil of plunger pump body 18 can be recycled, and is drained into the inside of closed oil collecting tank 14 through three-way valve 13, finally, the lubricating oil collected is rotated through circulating oil pump 16, facilitates the repeated use of lubricating oil, can reduce energy consumption, does not need to stop and fills oil, and the practicality is high.

[0022] The top side of the lubricating oil storage tank 2 is fixedly installed with a spray pump 4, the inlet of the spray pump 4 is fixedly installed with a suction pipe, the suction pipe is fixedly arranged in the inside of the lubricating oil storage tank 2, the top end of the lubricating oil storage tank 2 is fixedly provided with a filling pipe 3 at the side corresponding to the spray pump 4, the outlet of the spray pump 4 is fixedly installed with a first check valve 5, the first check valve 5 is fixedly communicated with one end of a distributor 7 through a connecting pipe 6, the lubricating oil in the inside of the lubricating oil storage tank 2 can be extracted through the suction pipe by the spray pump 4, and the consumed lubricating oil is supplemented into the distributor 7 through the first check valve 5, the plunger pump body 18 does not need to be stopped for oiling, and the filling pipe 3 can add lubricating oil into the inside of the lubricating oil storage tank 2.

[0023] In the embodiment, the front view shape of the oil collecting groove 10 is "U" type, screw holes 12 are symmetrically and equidistantly arranged in the inside of both ends of the oil collecting groove 10, and sealing pads 11 are fixedly arranged between the inside of the oil collecting groove 10 and the bottom of the plunger pump body 18. The oil collecting groove 10 is fixed by installing bolts in the inside of the screw holes 12, and the sealing pads 11 can increase the sealing between the oil collecting groove 10 and the plunger pump body 18, so that the excess lubricating oil in the inside of the plunger pump body 18 can be discharged into the inside of the oil collecting groove 10, and the lubricating oil is conveniently collected.

[0024] In the embodiment, the side wall of the closed oil collecting tank 14 is fixedly installed with a mounting plate 15 corresponding to the bottom of the circulating oil pump 16, the circulating oil pump 16 is fixedly installed on the top of the mounting plate 15, the inlet of the circulating oil pump 16 is arranged in the inside of the inner cavity, the outlets of the two circulating oil pumps 16 are fixedly installed with a circulating pipe 17, the bottoms of the two inner cavities are communicated with each other, the other end of the distributor 7 is fixedly installed with a second check valve 8, and the top end of the circulating pipe 17 is fixedly connected with one end of the second check valve 8. The mounting plate 15 is arranged to conveniently support the circulating oil pump 16 and improve the stability of the circulating oil pump 16. The lubricating oil in the inside of the inner cavity can be extracted by the circulating oil pump 16 and discharged into the distributor 7 through the circulating pipe 17 and the second check valve 8, so that the lubricating oil is recycled, the energy consumption is reduced, and the second check valve 8 can prevent the lubricating oil in the inside of the distributor 7 from entering the inside of the circulating pipe 17.

[0025] In the embodiment, the filtering mechanism comprises a filter screen 19, the outer end of the filter screen 19 is fixedly installed with a sealing plate 20, fixed holes 21 are arranged in the four corners of the sealing plate 20 and the corresponding positions of the closed oil collecting tank 14, and the filter screen 19 is arranged below the bottoms of both ends of the three-way valve 13. The filter screen 19 is arranged to filter the recycled lubricating oil, so that the impurities in the lubricating oil do not affect the lubrication of the plunger pump body 18, and the impurities in the inside of the filter screen 19 can be conveniently cleaned by disassembling the sealing plate 20.

[0026] In use, the lubricating system of the plunger pump, the oil shunt 9 is fixedly connected between the oil port at the top of the plunger pump body 18, the oil collecting groove 10 is clamped and installed at the bottom of the plunger pump body 18, and the screw is installed in the screw hole 12 to fix the oil collecting groove 10, the three-way valve 13 and the closed oil collecting tank 14 are installed in sequence at the bottom of the oil collecting groove 10, the length of the connecting pipe 6 can be selected according to the installation position of the base 1 and the lubricating oil storage tank 2, the lubricating oil is added to the inside of the lubricating oil storage tank 2 through the oil filler pipe 3, the spray pump 4 is started, the spray pump 4 sucks the lubricating oil from the inside of the lubricating oil storage tank 2 through the suction pipe, and discharges the lubricating oil into the inside of the distributor 7 through the first one-way valve 5 and the connecting pipe 6, the first one-way valve 5 can prevent the lubricating oil in the connecting pipe 6 and the distributor 7 from flowing back, the lubricating oil distributor 7 and the oil shunt 9 enter the inside of the plunger pump body 18, thereby lubricating the plunger pump body 18, the corresponding lubricating oil is discharged from the bottom into the inside of the oil collecting groove 10, then enters the inside of the lumen at both ends of the closed oil collecting tank 14 through the three-way valve 13, and simultaneously enters the filter screen 19, facilitating filtering of the lubricating oil through the filter screen 19, and the filtered lubricating oil is discharged into the distributor 7 through the circulating oil pump 16, the circulating pipe 17 and the second one-way valve 8, facilitating circulation of the lubricating oil, overcoming the shortcomings of the open lubricating system, such as large oil consumption, poor economy, and the need to stop for oiling, another spray pump 4 is installed at the rear side of the spray pump 4, the inlet and outlet of the spray pump 4 are respectively fixedly communicated with the suction pipe and the first one-way valve 5, and when one of the oil circulation routes fails, the other oil circulation route can be switched in time to ensure normal operation of the lubricating system, that is, only one circulating oil pump 16 is started at the same time, and when the circulating oil pump 16 fails, the other circulating oil pump 16 is started; and the lubricating oil storage tank 2 and the spray pump 4 can add lubricating oil to the distributor 7 to supplement the consumption of lubricating oil.

[0027] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A lubrication system for a plunger pump comprising a system body and a plunger pump body (18), characterized in that, The system body includes lubricating oil storage tank (2), distributor (7), oil collecting groove (10) and closed oil collecting tank (14), the bottom of lubricating oil storage tank (2) is fixedly provided with base (1), the bottom of distributor (7) is fixedly provided with shunt pipe (9), the shunt pipe (9) is fixedly communicated with the oil port at the top of plunger pump body (18), the oil collecting groove (10) is clamped and installed at the bottom of plunger pump body (18), the bottom of oil collecting groove (10) is communicated with closed oil collecting tank (14) and is provided with three-way valve (13), the inside of closed oil collecting tank (14) is provided with two cavities, the inside of two cavities is provided with filtering mechanism, one side of two cavities is fixedly provided with circulating oil pump (16) on the outer wall of closed oil collecting tank (14).

2. A lubrication system for a plunger pump as claimed in claim 1, characterized in that: The top side of lubricating oil storage tank (2) is fixedly provided with spray pump (4), the inlet of spray pump (4) is fixedly provided with suction pipe, the suction pipe is fixedly arranged in the inside of lubricating oil storage tank (2), the top end of lubricating oil storage tank (2) is fixedly provided with oil filling pipe (3) corresponding to one side of spray pump (4).

3. A lubrication system for a plunger pump as claimed in claim 2, characterized in that: The outlet position of spray pump (4) is fixedly provided with first one-way valve (5), the first one-way valve (5) is fixedly communicated with one end of distributor (7) through connecting pipe (6).

4. A lubrication system for a plunger pump as defined in claim 1, wherein: The front view shape of oil collecting groove (10) is "U" type, the inside of both ends of oil collecting groove (10) is symmetrically provided with screw hole (12), the inside of oil collecting groove (10) is fixedly provided with sealing gasket (11) between the bottom of plunger pump body (18).

5. A lubrication system for a plunger pump as defined in claim 1, wherein: The side wall of closed oil collecting tank (14) is fixedly provided with mounting plate (15) corresponding to the bottom of circulating oil pump (16), the circulating oil pump (16) is fixedly arranged on the top of mounting plate (15).

6. A lubrication system for a plunger pump as defined in claim 1, wherein: The inlet of circulating oil pump (16) is arranged in the inside of cavity, the outlet of two circulating oil pumps (16) is fixedly provided with circulating pipe (17), the bottom ends of two cavities are communicated with each other.

7. A lubrication system for a plunger pump as claimed in claim 6, characterized in that: The other end of distributor (7) is fixedly provided with second one-way valve (8), the top end of circulating pipe (17) is fixedly connected with one end of second one-way valve (8).

8. A lubrication system for a plunger pump as defined in claim 1, wherein: The filtering mechanism includes filter screen (19), the outer end of filter screen (19) is fixedly provided with sealing plate (20), the four corners of sealing plate (20) are provided with fixed hole (21) corresponding to the position of closed oil collecting tank (14), the filter screen (19) is arranged below both ends of the bottom of three-way valve (13).

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