Plunger pump sealing circulation moistening increasing device

Abstract

The invention relates to the technical field of pump bodies, in particular to a plunger pump sealing circulation moistening device which comprises an end cover plate, the end cover plate is arranged on a piston rod of a plunger pump in a sleeving mode, a reserved groove is formed in the surface of the end cover plate and filled with lubricating oil, and a sealing plate is arranged at a groove opening of the reserved groove. An oil seepage hole communicated with the reserved groove is formed in the inner ring surface of the end cover plate, a cotton core is fixed in the oil seepage hole, a push plate is inserted into one side of the end cover plate, and the push plate extrudes the cotton core after being pressed; the device has the advantages that the push plate is pushed to extrude the cotton core, lubricating oil adsorbed by the cotton core is extruded and then flows out through the oil seepage holes, and at the moment, the rubber supporting ring is extruded by the push plate to deform; after the push plate is loosened, the rubber support ring rebounds to push the push plate to reset, and the cotton core begins to adsorb the lubricating oil on the surface of the cotton cover again. After the push plate is repeatedly pushed and loosened for multiple times, lubricating oil can be leaked out of the cotton core for multiple times. According to the design, the exosmosis speed of the lubricating oil can be flexibly adjusted according to the actual operation condition of the plunger pump.

Description

Technical Field

[0001] This invention relates to the field of pump technology, specifically to a plunger pump sealing circulation lubrication device. Background Technology

[0002] During the operation of a plunger pump, the relative movement between the piston rod and the end cover plate generates friction. In order to reduce the wear caused by this friction, ensure the normal operation of the plunger pump, and extend its service life, effective lubrication measures are required.

[0003] Traditional lubrication methods often have several shortcomings. Firstly, supplying and maintaining lubricating oil is difficult, making it challenging to consistently and stably provide sufficient lubrication to the piston rod. This can lead to excessive wear between the piston rod and end cover plate after a period of operation, affecting the pump's performance and accuracy. Secondly, existing lubrication devices may have sealing defects, easily resulting in lubricating oil leakage. This not only wastes lubricating oil but also pollutes the surrounding environment and significantly reduces lubrication effectiveness. Furthermore, there is a lack of convenient and effective methods for replenishing lubricating oil and adjusting the lubrication rate, making it difficult to adjust the lubrication status in a timely manner according to the actual operating conditions of the piston pump. Therefore, a piston pump lubrication device that can better achieve sealing, provide a continuous and stable oil supply, and is easy to operate is needed. Summary of the Invention

[0004] The purpose of this invention is to provide a plunger pump sealing circulation lubrication device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a plunger pump sealing circulation lubrication device, comprising an end cover plate, the end cover plate being sleeved on the piston rod of the plunger pump, a reserved groove being provided on the surface of the end cover plate, the interior of the reserved groove being filled with lubricating oil, a sealing plate being provided at the opening of the reserved groove, an oil seepage hole being provided on the inner circumferential surface of the end cover plate communicating with the reserved groove, a cotton core being fixed inside the oil seepage hole, and a push plate being inserted into one side of the end cover plate, the push plate squeezing the cotton core when pressed.

[0006] Preferably, the reserved groove is an annular groove, and an assembly groove is provided on one side of the end cover plate. The assembly groove is annular groove, and the diameter of the assembly groove is larger than the diameter of the reserved groove. The sealing plate is inserted into the assembly groove, and two rubber gaskets of different sizes are fixed on the surface of the sealing plate. The rubber gaskets are clamped between the sealing plate and the assembly groove.

[0007] Preferably, a plurality of screws are fixed on the surface of the assembly groove. The screws are inserted into through holes opened on the surface of the sealing plate. The length of the screw is greater than the thickness of the sealing plate and less than the depth of the assembly groove. A nut is screwed onto one end of the screw.

[0008] Preferably, a plug plate is integrally formed on the other side of the sealing plate. The plug plate is inserted into the reserved groove. A rubber stop piece is fixed on the inner ring surface of the assembly groove, and the outer ring surface of the rubber stop piece abuts against the outer ring surface of the assembly groove.

[0009] Preferably, a cotton cover is fixed inside the reserved groove. The cotton cover is a circular ring plate with an "L"-shaped cross-section. The cotton cover covers multiple oil leakage holes. One end of the cotton core is fixed on the inner ring surface of the cotton cover, and the height of the cotton core is less than the depth of the oil leakage holes.

[0010] Preferably, an oil injection port is formed on the surface of the sealing plate. The oil injection port is a circular port with a "convex" shape. Internal threads are provided on the surface of the oil injection port. A sealing head is inserted and screwed inside the oil injection port. The sealing head is a circular block with a "convex" shape. External threads are provided on the surface of the sealing head. A screwing handle is fixed on one side of the sealing head.

[0011] Preferably, a slot is formed on one side of the end cover plate. The slot is a circular ring groove with a "T"-shaped break. The push plate is a circular ring plate with a "T"-shaped cross-section. The oil leakage holes are communicated with the slot.

[0012] Preferably, two annular rubber support rings are fixed on the plate body of the push plate. One side of the rubber support rings is fixed on the surface of the slot. When the rubber support rings are in the initial state, the push plate does not contact the cotton core.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] For the plunger pump sealing circulation lubrication enhancement device proposed by the present invention, when it is necessary to accelerate the external leakage speed of the lubricating oil, the push plate is pushed to squeeze the cotton core. The lubricating oil adsorbed by the cotton core is extruded and flows out through the oil leakage holes. At this time, the rubber support rings are deformed by the push of the push plate. After releasing the push plate, the rubber support rings rebound to push the push plate back to its original position, and the cotton core starts to re-adsorb the lubricating oil on the surface of the cotton cover. After repeatedly pushing and releasing the push plate for multiple times, the cotton core can leak lubricating oil multiple times. This design can flexibly adjust the external leakage speed of the lubricating oil according to the actual operating conditions of the plunger pump, and better meet the lubrication requirements under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Figure 2 is Figure 1 a structural sectional view taken along the A-A line in

[0017] Figure 3 is Figure 2 a schematic enlarged view of the structure at B in

[0018] Figure 4 is a schematic structural diagram of the end cover plate of the present invention;

[0019] Figure 5This is a schematic diagram of the pusher plate structure of the present invention;

[0020] Figure 6 This is a schematic diagram of the sealing plate structure of the present invention.

[0021] In the diagram: End cover plate 1, reserved groove 101, assembly groove 102, oil seepage hole 103, slot 104, cotton cover 2, cotton core 201, sealing plate 3, plug plate 301, perforation 302, oil injection port 303, end cap 304, screw handle 305, rubber gasket 306, screw 4, nut 401, rubber baffle 5, push plate 6, rubber support ring 7. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 6 This invention provides a technical solution: a plunger pump sealing circulation lubrication device, including an end cover plate 1, which is sleeved on the piston rod of the plunger pump. The end cover plate 1 is a reusable component, meaning it can be removed from the plunger pump and reused. A reserved groove 101 is formed on the surface of the end cover plate 1, and the interior of the reserved groove 101 is filled with lubricating oil. A sealing plate 3 is provided at the opening of the reserved groove 101. The reserved groove 101 is an annular groove. An assembly groove 102 is formed on one side of the end cover plate 1. The assembly groove 102 is an annular groove, and its diameter is larger than that of the reserved groove 101. The sealing plate 3 is inserted into the assembly groove 102. Two rubber gaskets 306 of different sizes are fixed to the surface of the sealing plate 3, and the rubber gaskets 306 are clamped between the sealing plate 3 and the assembly groove 102. Multiple screws 4 are fixed to the surface of the assembly groove 102. The screws 4 are inserted into the through holes 302 opened on the surface of the sealing plate 3. The length of the screw 4 is greater than the thickness of the sealing plate 3 and less than the depth of the assembly groove 102. A nut 401 is screwed onto one end of the screw 4. A plug plate 301 is integrally formed on the other side of the sealing plate 3. The plug plate 301 is inserted into the reserved groove 101. A rubber baffle 5 is fixed to the inner ring surface of the assembly groove 102. The outer ring surface of the rubber baffle 5 abuts against the outer ring surface of the assembly groove 102.

[0024] Fold the rubber baffle 5 from the outer ring towards the inner ring, then inject lubricating oil into the reserved groove 101, and then push the sealing plate 3 into the assembly groove 102. At this time, the screw 4 passes through the corresponding through hole 302, and the plug plate 301 is inserted into the reserved groove 101. Sleeve the nut 401 onto the corresponding screw 4 and tighten it. At this time, the sealing plate 3 tightly squeezes the rubber gasket 306. After the rubber gasket 306 deforms, it plays a sealing role between the sealing plate 3 and the assembly groove 102. The elastic force of the rubber gasket 306 pushes the sealing plate 3, so that the screw 4 and the nut 401 are tightly screwed together. Fold the rubber baffle 5 back to seal the groove opening of the assembly groove 102.

[0025] To mitigate lubricant leakage from the interior of the pre-reserved groove 101, the following measures were proposed:

[0026] A cotton cover 2 is fixed inside the reserved groove 101. The cotton cover 2 is an L-shaped annular plate and covers multiple oil seepage holes 103. One end of the cotton core 201 is fixed to the inner annular surface of the cotton cover 2, and the height of the cotton core 201 is less than the depth of the oil seepage holes 103. That is, after the lubricating oil inside the reserved groove 101 is saturated by the cotton cover 2, the cotton cover 2 transfers the saturated lubricating oil to the cotton core 201. The saturated cotton core 201 drips the lubricating oil and flows through the oil seepage holes 103 to the inner annular opening of the end cover plate 1, where the lubricating oil is applied to the piston rod.

[0027] To achieve the replenishment of lubricating oil into the reserved groove 101, the following was proposed:

[0028] The sealing plate 3 has an oil inlet 303 on its surface. The oil inlet 303 is a convex "U" shaped round opening with internal threads. A sealing head 304 is inserted into and screwed into the oil inlet 303. The sealing head 304 is a convex "U" shaped round block with external threads. A screwing handle 305 is fixed to one side of the sealing head 304. After the sealing head 304 is unscrewed from the oil inlet 303 by squeezing the screwing handle 305, lubricating oil is injected into the reserved groove 101 through the oil inlet 303. Then, the sealing head 304 is screwed back to seal the oil inlet 303. This replenishes the lubricating oil, ensuring that the equipment can be reused, rather than being a disposable product.

[0029] To accelerate the external penetration rate of lubricating oil, the following was proposed:

[0030] An oil seepage hole 103 is provided on the inner ring surface of the end cover plate 1, which is connected to the reserved groove 101. A cotton core 201 is fixed inside the oil seepage hole 103. A push plate 6 is inserted into one side of the end cover plate 1. The push plate 6 squeezes the cotton core 201 when it is pressed. A slot 104 is provided on one side of the end cover plate 1. The slot 104 is a circular groove with a "T" shaped cross-section. The push plate 6 is a circular plate with a "T" shaped cross-section. The oil seepage hole 103 is connected to the slot 104. Two annular rubber support rings 7 are fixed on the plate body of the push plate 6. One side of the rubber support ring 7 is fixed to the surface of the slot 104. When the rubber support ring 7 is in the initial state, the push plate 6 does not contact the cotton core 201.

[0031] After the pusher plate 6 squeezes the cotton core 201, the lubricating oil adsorbed by the cotton core 201 is squeezed out and flows out through the oil seepage hole 103. At this time, the rubber support ring 7 is squeezed and deformed by the pusher plate 6. After the pusher plate 6 is released, the rubber support ring 7 rebounds and pushes the pusher plate 6 back to its original position. The cotton core 201 begins to re-adsorb the lubricating oil on the surface of the cotton cover 2. After repeatedly pushing and releasing the pusher plate 6, the cotton core 201 can seep out lubricating oil multiple times.

[0032] Detailed instructions for using the plunger pump seal circulation lubrication device:

[0033] Fold the rubber baffle 5 from the outer ring towards the inner ring to fully expose the groove of the assembly slot 102, facilitating subsequent lubrication and installation of the sealing plate 3. Inject an appropriate amount of lubricating oil into the reserved groove 101 on the surface of the end cover plate 1, ensuring the oil is filled to the correct level to provide a foundation for subsequent lubrication. Push the sealing plate 3 into the assembly slot 102, ensuring that the multiple screws 4 fixing the surface of the assembly slot 102 pass through the perforations 302 on the surface of the sealing plate 3, while simultaneously inserting the integrally formed plug plate 301 on the other side of the sealing plate 3 into the reserved groove 101. Fit the nut 401 onto the corresponding screw 4 and tighten it. At this point, the sealing plate 3 tightly presses against two rubber gaskets 306 of different sizes fixed on its surface. The deformation of the rubber gaskets 306 creates a seal between the sealing plate 3 and the assembly groove 102. Furthermore, the rebound force of the rubber gaskets 306 supports the sealing plate 3, ensuring a tight connection between the screw 4 and the nut 401, thus guaranteeing the sealing performance and stability of the device. The previously folded rubber baffle 5 is then folded back to seal the opening of the assembly groove 102, further enhancing the sealing performance of the device and preventing lubricant leakage.

[0034] Inside the reserved slot 101, a circular ring plate cotton cover 2 with a cross-section of "L" shape is fixed. The cotton cover 2 covers multiple oil leakage holes 103. One end of the cotton core 201 is fixed on the inner ring surface of the cotton cover 2, and the height of the cotton core 201 is less than the depth of the oil leakage hole 103. When the lubricating oil inside the reserved slot 101 is adsorbed and saturated by the cotton cover 2, the cotton cover 2 will transfer the adsorbed and saturated lubricating oil to the cotton core 201. After the cotton core 201 is adsorbed and saturated, it will drip the lubricating oil, and the lubricating oil will flow to the inner ring opening of the end cover plate 1 through the oil leakage hole 103, and then be smeared on the piston rod to achieve continuous lubrication of the piston rod. When it is found that the amount of lubricating oil in the reserved slot 101 is insufficient and needs to be replenished, operate according to the following steps: Pinch the screwing handle 305 fixed on one side of the oil injection port 303 on the surface of the sealing plate 3, and screw out the sealing head 304 in the shape of a "convex" circular block with external threads on its surface from the oil injection port 303 in the shape of a "convex" circular opening with internal threads on its surface, so that the oil injection port 303 is exposed. Inject an appropriate amount of lubricating oil into the reserved slot 101 through the oil injection port 303, and ensure that the injected amount of lubricating oil can meet the subsequent lubrication requirements. Screw the sealing head 304 back into the oil injection port 303 to block the oil injection port 303 and prevent the lubricating oil from leaking, ensuring the normal operation of the device. When it is necessary to accelerate the lubrication speed of the lubricating oil on the piston rod, operate according to the following steps: Apply pressure to the circular ring plate push plate 6 with a cross-section of "T" shape inserted on one side of the end cover plate 1, so that the push plate 6 moves towards the direction close to the cotton core 201. Since there is a circular ring groove slot 104 with a cross-section of "T" shape on one side of the end cover plate 1, the oil leakage hole 103 is connected to the slot 104, and two annular rubber support rings 7 are fixed on the plate body of the push plate 6, and one side of the rubber support ring 7 is fixed on the surface of the slot 104. During the process of pushing the push plate 6, the rubber support ring 7 will be deformed by the push plate 6. When the push plate 6 squeezes the cotton core 201, the lubricating oil adsorbed by the cotton core 201 will be extruded and flow out through the oil leakage hole 103, thereby accelerating the lubrication speed of the lubricating oil on the piston rod. Stop applying pressure to the push plate 6. At this time, the deformed rubber support ring 7 will rebound and push the push plate 6 to reset, so that the push plate 6 returns to its initial position (when the rubber support ring 7 is in the initial state, the push plate 6 does not contact the cotton core 201). After resetting, the cotton core 201 starts to re-adsorb the lubricating oil on the surface of the cotton cover 2 to prepare for the next rapid lubrication. According to actual needs, repeat the process of pushing and releasing the push plate 6 multiple times to achieve multiple external leakage of lubricating oil from the cotton core 201 to meet the requirements of rapid lubrication of the piston rod under different working conditions.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plunger pump sealing circulation lubrication device, comprising an end cover plate (1), the end cover plate (1) being sleeved on the piston rod of the plunger pump, characterized in that: A reserved groove (101) is formed on the surface of the end cover plate (1). Lubricating oil is filled inside the reserved groove (101). A sealing plate (3) is provided at the notch of the reserved groove (101). An oil leakage hole (103) communicating with the reserved groove (101) is formed on the inner ring surface of the end cover plate (1). A cotton core (201) is fixed inside the oil leakage hole (103). A push plate (6) is inserted on one side of the end cover plate (1). When the push plate (6) is pressed, it squeezes the cotton core (201); the reserved groove (101) is an annular groove. An assembling groove (102) is formed on one side of the end cover plate (1). The assembling groove (102) is an annular groove. The diameter of the assembling groove (102) is larger than that of the reserved groove (101). The sealing plate (3) is inserted into the assembling groove (102). Two rubber gaskets (306) with different sizes are fixed on the surface of the sealing plate (3). The rubber gaskets (306) are clamped between the sealing plate (3) and the assembling groove (102).

2. The plunger pump sealing circulation lubrication device according to claim 1, characterized in that: A plurality of screw rods (4) are fixed on the surface of the assembling groove (102). The screw rods (4) are inserted into through holes (302) formed on the surface of the sealing plate (3). The rod length of the screw rod (4) is larger than the thickness of the sealing plate (3), and the rod length of the screw rod (4) is smaller than the depth of the assembling groove (102). A nut (401) is sleeved and screwed at one end of the screw rod (4).

3. The plunger pump sealing circulation lubrication device according to claim 1, characterized in that: A plug plate (301) is integrally formed on the other side of the sealing plate (3). The plug plate (301) is inserted into the reserved groove (101). A rubber retaining piece (5) is fixed on the inner ring surface of the assembling groove (102). The outer ring surface of the rubber retaining piece (5) abuts against the outer ring surface of the assembling groove (102).

4. The plunger pump seal circulation lubrication device according to claim 1, characterized in that: A cotton cover (2) is fixed inside the reserved groove (101). The cotton cover (2) is an annular plate with an "L"-shaped cross section. The cotton cover (2) covers a plurality of oil leakage holes (103). One end of the cotton core (201) is fixed on the inner ring surface of the cotton cover (2), and the height of the cotton core (201) is smaller than the depth of the oil leakage hole (103).

5. The plunger pump seal circulation lubrication device according to claim 1, characterized in that: An oil injection port (303) is formed on the surface of the sealing plate (3). The oil injection port (303) is a convex-shaped circular port. Internal threads are provided on the surface of the oil injection port (303). A sealing head (304) is inserted and screwed inside the oil injection port (303). The sealing head (304) is a convex-shaped circular block. External threads are provided on the surface of the sealing head (304). A screwing handle (305) is fixed on one side of the sealing head (304).

6. The plunger pump seal circulation lubrication device according to claim 1, characterized in that: A slot (104) is formed on one side of the end cover plate (1). The slot (104) is an annular groove with a "T"-shaped break. The push plate (6) is an annular plate with a "T"-shaped cross section. The oil leakage hole (103) communicates with the slot (104).

7. The plunger pump seal circulation lubrication device according to claim 6, characterized in that: Two annular rubber support rings (7) are fixed on the plate body of the push plate (6). One side of the rubber support rings (7) is fixed on the surface of the slot (104). When the rubber support rings (7) are in the initial state, the push plate (6) does not contact the cotton core (201).

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