Lubricating system for input shaft of slurry pump

Abstract

The invention relates to a slurry pump input shaft lubricating system which comprises a slurry pump body, an oil pool is formed in the bottom of the pump body, an input shaft and a crankshaft are arranged at the upper end of the pump body, and gear transmission fit is formed between the input shaft and the crankshaft. The oil pump is arranged in the oil pool; the joint seat is arranged on the pump body, a distribution cavity is formed in the joint seat, the joint seat is connected with an oil inlet pipe and a plurality of oil outlet pipes, and the oil inlet pipe is connected with an oil pump; and each oil nozzle is connected with the oil outlet pipe, the oil nozzles are fixed on the pump body, and oil outlets of the oil nozzles face the bearing mounting part of the input shaft. Lubricating oil sprayed out of the oil nozzle directly acts on the bearing installation part of the input shaft, so that the bearing obtains sufficient lubricating oil, after the lubricating oil forms a lubricating oil film on the bearing installation part of the input shaft, heat generated in the operation process of the bearing can be taken away, the cooling effect is achieved, and the bearing is prevented from being damaged due to overheating.

Description

Technical Field

[0001] The invention relates to the field of mud pump equipment, and in particular to a lubrication system for a pinion shaft of a mud pump. Background Art

[0002] The mud pump is piston or plunger type. The driving motor drives the crankshaft on the pump body to act as a rotating arm through the input shaft, and the crankshaft drives the piston or plunger to reciprocate in the pump cylinder through the crosshead. Under the alternating action of the suction and discharge valves, the purpose of pressurizing and circulating the flushing liquid is achieved.

[0003] At present, the installation structure of the input shaft on the pump body is relatively simple, mainly that both ends of the input shaft are installed on the pump body through bearing seats, and the bearings lack a corresponding lubrication system, resulting in the input shaft bearings being unable to adapt to the long-term operation of the mud pump. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a mud pump pinion shaft lubrication system to solve the technical problem that the bearings at both ends of the input shaft in the current mud pump are easily damaged due to lack of lubrication.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A mud pump input shaft lubrication system is provided, comprising:

[0007] A mud pump body, wherein an oil pool is provided at the bottom of the pump body, an input shaft and a crankshaft are arranged at the upper end of the pump body, a gear transmission is formed between the input shaft and the crankshaft, and the input shaft and the crankshaft are both located above the oil pool;

[0008] An oil pump, wherein the oil pump is arranged in the oil pool;

[0009] A joint seat, the joint seat is arranged on the pump body, a distribution cavity is provided in the joint seat, the joint seat is connected to an oil inlet pipe and a plurality of oil outlet pipes, and the oil inlet pipe is connected to an oil pump;

[0010] A plurality of oil nozzles are each connected to an oil outlet pipe, the oil nozzle is fixed on the pump body, and the oil outlet of the oil nozzle faces the bearing mounting portion of the input shaft.

[0011] Furthermore, the joint seat is connected to an overflow valve, and the overflow valve is located above the oil pool. When the lubricating oil pressure exceeds a set value, the overflow valve will open to allow excess lubricating oil in the joint seat to flow back to the oil pool.

[0012] Furthermore, bearing seats are arranged at both ends of the pump body, and both ends of the input shaft cooperate with the bearing seats;

[0013] The oil nozzle is arranged on the bearing seat.

[0014] Furthermore, a mounting ring is provided on the inner side of the bearing seat, and the mounting ring is fixed to the bearing seat by bolts;

[0015] The oil nozzle is fixed on the mounting ring via screws.

[0016] Furthermore, an oil baffle is provided on the inner side below the mounting ring, and the upper end of the oil baffle is lower than the input shaft;

[0017] An oil storage tank is formed between the inner side of the oil baffle plate and the inner cavity of the bearing seat.

[0018] Furthermore, a pressure gauge is provided on the oil outlet pipe.

[0019] The beneficial effects of the present invention are:

[0020] The mud pump input shaft lubrication system of the present invention can spray the lubricating oil in the oil pool from the oil nozzle through the oil pump, and the lubricating oil sprayed from the oil nozzle directly acts on the bearing mounting part of the input shaft, so that the bearing obtains sufficient lubricating oil. After the lubricating oil forms a lubricating oil film on the bearing mounting part of the input shaft, it will take away the heat generated during the operation of the bearing, play a role in cooling and reducing the temperature, and prevent the bearing from being damaged due to overheating.

[0021] The oil storage tank formed by the oil baffle plate on the bearing seat can allow the bottom of the bearing to be immersed in the lubricating oil in the oil storage tank, so that the bearing can obtain sufficient lubricating oil and extend the service life of the bearing.

[0022] The lubricating oil overflowing from the oil storage tank enters the oil pool again, and after sedimentation and heat dissipation, it is sucked into the lubricating oil pump again for the next cycle of lubrication, thereby realizing the recycling of the lubricating oil and ensuring the continuous and stable operation of the lubrication system.

[0023] For the control and protection of oil pressure, an overflow valve is installed on the joint seat. When the oil pressure in the lubrication system exceeds the set value, the overflow valve will automatically open to allow excess lubricating oil to flow back to the oil pool, thereby ensuring that the oil pressure in the lubrication system is always maintained within the normal range, preventing problems such as oil pipe rupture, seal damage or bearing overload caused by excessive oil pressure, and effectively protecting the normal operation of the entire lubrication system and mud pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings.

[0025] Figure 1 This is a diagram of the lubrication system of the mud pump input shaft of the present invention;

[0026] Figure 2 It is the structural diagram between the input shaft and the bearing seat;

[0027] Figure 3 It is a schematic diagram of the bearing seat;

[0028] Among them, 1. pump body, 11. oil pool;

[0029] 2. Oil pump, 21. Connector seat, 22. Overflow valve, 23. Pressure gauge;

[0030] 3. Input shaft, 4. Crankshaft;

[0031] 5. Bearing seat, 51. Mounting ring, 52. Oil baffle plate, 53. Oil nozzle. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The present application provides a mud pump input shaft lubrication system, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0034] In order to solve the technical problem in the prior art that the bearings at both ends of the input shaft 3 of the mud pump lack lubrication and are easily damaged, an embodiment of the present application provides a mud pump input shaft lubrication system, which is described in detail below.

[0035] like Figures 1 to 3 As shown, a mud pump input shaft lubrication system includes

[0036] A mud pump body 1, wherein an oil pool 11 is provided at the bottom of the pump body 1, an input shaft 3 and a crankshaft 4 are provided at the upper end of the pump body 1, a gear transmission is formed between the input shaft 3 and the crankshaft 4, and the input shaft 3 and the crankshaft 4 are both located above the oil pool 11;

[0037] An oil pump 2, wherein the oil pump 2 is arranged in the oil pool 11;

[0038] A joint seat 21, wherein the joint seat 21 is arranged on the pump body 1, a distribution cavity is provided in the joint seat 21, the joint seat 21 is connected to an oil inlet pipe and a plurality of oil outlet pipes, and the oil inlet pipe is connected to the oil pump 2;

[0039] A plurality of oil nozzles 53 are provided, each of which is connected to an oil outlet pipe. The oil nozzles 53 are fixed on the pump body 1 , and the oil outlet of the oil nozzles 53 faces the bearing mounting portion of the input shaft 3 .

[0040] Specifically, as an optional implementation in this embodiment, Figure 1 As shown, the connector seat 21 is connected to the overflow valve 22 , and the overflow valve 22 is located above the oil pool 11 . When the lubricating oil pressure exceeds a set value, the overflow valve 22 will open to allow the excess lubricating oil in the connector seat 21 to flow back to the oil pool 11 .

[0041] Specifically, as an optional implementation in this embodiment, Figures 1 to 3 As shown, bearing seats 5 are arranged at both ends of the pump body 1, and both ends of the input shaft 3 cooperate with the bearing seats 5;

[0042] The oil nozzle 53 is arranged on the bearing seat 5 .

[0043] Specifically, as an optional implementation in this embodiment, Figures 1 to 3 As shown, a mounting ring 51 is provided on the inner side of the bearing seat 5, and the mounting ring 51 is fixed on the bearing seat 5 by bolts;

[0044] The oil nozzle 53 is fixed on the mounting ring 51 via screws.

[0045] Specifically, as an optional implementation in this embodiment, Figure 2 and Figure 3 As shown, an oil baffle plate 52 is provided on the inner side below the mounting ring 51, and the upper end of the oil baffle plate 52 is lower than the input shaft 3;

[0046] An oil storage tank is formed between the inner side of the oil baffle plate 52 and the inner cavity of the bearing seat 5 .

[0047] The oil storage tank is a part of the bottom of the inner cavity of the bearing seat 5. The lubricating oil on the input shaft 3 can drip into the oil storage tank through the bearing. When the lubricating oil in the oil storage tank is full, it will overflow. The overflowed lubricating oil enters the oil pool 11 again, and after sedimentation and heat dissipation, it is sucked into the lubricating oil pump 2 again for the next circulation lubrication, thereby realizing the recycling of the lubricating oil and ensuring the continuous and stable operation of the lubrication system.

[0048] In this embodiment, the oil outlet pipe is provided with a pressure gauge 23. The oil pressure in the oil outlet pipe can be known in real time through the pressure gauge 23.

[0049] An oil nozzle 53 is respectively arranged on the bearing seats 5 at both ends of the output shaft, and a plurality of oil nozzles 53 are also arranged on the crankshaft 4 .

[0050] There are multiple oil outlet pipes, and the number of the oil outlet pipes corresponds to the number of the oil nozzles 53. The oil outlet pipes are copper pipes.

[0051] Working principle of the mud pump input shaft lubrication system: The oil pump 2 serves as the power source of the entire lubrication system. It starts working after the mud pump is started. The oil pump 2 sucks in the lubricating oil. After being pressurized by the pump body 1, the lubricating oil has a certain pressure and flow rate so that it can be smoothly transported to various parts that need lubrication.

[0052] The lubricating oil discharged from the oil pump 2 first passes through the filter, and the filtered lubricating oil enters the joint seat 21, which plays the role of connecting and distributing the lubricating oil. It delivers the lubricating oil to the oil nozzles 53 on both sides of the input shaft 3. After the lubricating oil forms a lubricating oil film on the bearings and other parts of the input shaft 3, it will take away the heat generated during the operation of the bearings, play a role in cooling and preventing the bearings from being damaged due to overheating. As the input shaft 3 continues to operate, the lubricating oil will circulate continuously. A part of the lubricating oil will form a dynamic oil film between the rolling elements and the inner and outer rings of the bearings to reduce friction and wear.

[0053] An overflow valve 22 is installed on the joint seat 21. When the oil pressure in the lubrication system exceeds the set value, the overflow valve 22 will automatically open to allow excess lubricating oil to flow back to the oil pool 11, thereby ensuring that the oil pressure in the lubrication system is always maintained within a normal range, preventing problems such as oil pipe rupture, seal damage or bearing overload caused by excessive oil pressure, and effectively protecting the normal operation of the entire lubrication system and mud pump.

[0054] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0055] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0057] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0058] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0059] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0060] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A mud pump input shaft lubrication system, characterized in that: include A mud pump body (1), wherein an oil pool (11) is provided at the bottom of the pump body (1), an input shaft (3) and a crankshaft (4) are arranged at the upper end of the pump body (1), a gear transmission is formed between the input shaft (3) and the crankshaft (4), and the input shaft (3) and the crankshaft (4) are both located above the oil pool (11); An oil pump (2), wherein the oil pump (2) is arranged in the oil pool (11); A joint seat (21), the joint seat (21) being arranged on the pump body (1), a distribution cavity being provided in the joint seat (21), the joint seat (21) being connected to an oil inlet pipe and a plurality of oil outlet pipes, the oil inlet pipe being connected to the oil pump (2); A plurality of oil nozzles (53) are provided, each of which is connected to an oil outlet pipe. The oil nozzle (53) is fixed on the pump body (1), and the oil outlet of the oil nozzle (53) faces the bearing mounting portion of the input shaft (3).

2. The lubrication system for the mud pump input shaft (3) according to claim 1, characterized in that: The joint seat (21) is connected to an overflow valve (22), and the overflow valve (22) is located above the oil pool (11). When the lubricating oil pressure exceeds a set value, the overflow valve (22) will open, allowing the excess lubricating oil in the joint seat (21) to flow back to the oil pool (11).

3. The lubrication system for the mud pump input shaft (3) according to claim 1, characterized in that: Bearing seats (5) are arranged at both ends of the pump body (1), and both ends of the input shaft (3) are matched with the bearing seats (5); The oil nozzle (53) is arranged on the bearing seat (5).

4. The lubrication system for the mud pump input shaft (3) according to claim 3, characterized in that: A mounting ring (51) is provided on the inner side of the bearing seat (5), and the mounting ring (51) is fixed to the bearing seat (5) by bolts; The oil nozzle (53) is fixed on the mounting ring (51) via screws.

5. The lubrication system for the mud pump input shaft (3) according to claim 4, characterized in that: An oil baffle plate (52) is arranged on the inner side below the mounting ring (51), and the upper end of the oil baffle plate (52) is lower than the input shaft (3); An oil storage tank is formed between the inner side of the oil baffle plate (52) and the inner cavity of the bearing seat (5).

6. The lubrication system for the mud pump input shaft (3) according to claim 1, characterized in that: A pressure gauge (23) is provided on the oil outlet pipe.

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