Efficient axially split pump device with water-cooled grease lubricated bearing

Abstract

The utility model relates to the technical field of liquid pump devices, in particular to a water-cooling grease-lubricated bearing efficient axially split pump device which comprises a pump shell, an axially split face, a bearing assembly, two cooling grooves, a second cooling groove, a water inlet mechanism, a drainage hole and an upper cover. Each cooling groove and the corresponding second cooling groove are oppositely arranged to form a cooling cavity, a bearing assembly is arranged in the cooling cavity and connected with the pump shell and the upper cover, the second cooling grooves are formed in the end face of an opening of the upper cover, a sealing piece is inserted between the end face and the middle opening face, the pump shell is connected with the upper cover through bolts, and a drainage hole is formed in the bottom of the cooling cavity. The top of the cooling cavity is connected with the water inlet mechanism, water is supplied to the cooling cavity through the water inlet mechanism, water in the cooling cavity cools the bearing assembly, excessive loss of lubricating grease caused by too high temperature when the assembly uses high-power lubricating oil can be avoided, and the working capacity of the device under various working conditions is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid pump devices, in particular to a high-efficiency split case pump device for water-cooled grease-lubricated bearings. Background Art

[0002] The working principle of the split case pump is: when the prime mover drives the impeller to rotate, the impeller generates both centrifugal force and axial thrust on the liquid, causing the liquid to flow out of the impeller obliquely.

[0003] However, the existing technology still has shortcomings. The device needs to select high-power bearings and use corresponding grease for lubrication in a high-power working environment, but the cooling effect of the existing device is extremely poor, which leads to serious consumption of grease. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency split-center pump device for water-cooled grease-lubricated bearings, so as to solve the problem raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a water-cooled grease-lubricated bearing high-efficiency split-center pump device, comprising: a pump casing, a split-center surface, a bearing assembly, a cooling groove, a second cooling groove, a water inlet mechanism, a drainage hole and an upper cover. Two cooling grooves are provided on the split-center surface of the pump casing opening, and each cooling groove is arranged opposite to a second cooling groove to form a cooling cavity. A bearing assembly is provided in the cooling cavity, and the bearing assembly is respectively connected to the pump casing and the upper cover. The second cooling groove is provided on the end face of the upper cover opening, and a sealing member is inserted between the end face and the split-center surface. The pump casing and the upper cover are connected by bolts. A drainage hole is provided at the bottom of the cooling cavity, and a water inlet mechanism is connected to the top of the cooling cavity.

[0006] Preferably, the bearing assembly includes: a bearing and a rotating shaft, a bearing groove and a steering groove are provided on the middle open surface, the bearing groove is connected with the steering groove through the cooling groove, a bearing groove 2 and a steering groove 2 are provided on the end surface, the bearing groove 2 is connected with the steering groove 2 through the cooling groove 2, the bearing groove and the bearing groove 2 cooperate to install the bearing, the bearing sleeve is provided on the rotating shaft, a cooling section of the rotating shaft is provided in the cooling cavity, and the end face of the sealing ring mounted on the rotating shaft is connected with the cooling cavity to seal one side of the cooling cavity.

[0007] Preferably, the rotating shaft is provided with blades, which are placed between two turning grooves. A sleeve is installed in the turning groove and the second turning groove opposite to it. The end of the sleeve seals the other side of the cooling cavity, and the inner wall of the sleeve rotates in conjunction with the side wall of the rotating shaft.

[0008] Preferably, the water inlet mechanism includes: a water inlet pipe, the top end of the water inlet pipe is connected to the top of the upper cover, the bottom end of the water inlet pipe is connected to the side of the upper cover, the bottom end of the water inlet pipe is connected to the water inlet hole on the side of the upper cover, the water inlet hole is arranged toward the U-shaped guide groove of the side wall of the sleeve, and the end of the U-shaped guide groove is arranged toward the cooling chamber.

[0009] Preferably, a check valve is provided in the water inlet pipe.

[0010] Preferably, a filter is provided in the water inlet pipe, and the filter is arranged above the check valve.

[0011] Preferably, a mounting hole is formed through the inner wall of the water outlet of the pump housing, the bottom end of the drain pipe is inserted into the mounting hole, and the top end of the drain pipe is plugged into and matched with the drain hole.

[0012] Preferably, the seal comprises a rubber strip, the middle open surface is provided with two slots, the ends of the slots are connected to the bearing slots, the bottom of the rubber strip is inserted into the slots, and the ends of the rubber strip are in contact with the sides of the bearings.

[0013] Preferably, two second clamping grooves are formed on the end surface, the ends of the second clamping grooves are communicated with the second bearing grooves, and the tops of the rubber strips are inserted into the second clamping grooves.

[0014] Preferably, a mounting seat is provided at the bottom of the pump housing, a motor is provided at the side of the pump housing, and the end of the rotating shaft passing through the outside of the pump housing is connected to the output end of the motor.

[0015] The beneficial effects of the utility model are as follows:

[0016] By setting up a water inlet mechanism to supply water to the cooling chamber, the water in the cooling chamber cools the bearing assembly, which can avoid excessive loss of grease due to high temperature when the assembly uses high-power lubricating oil, thereby improving the ability of the device to work under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top cross-sectional view of the utility model;

[0018] Figure 2 It is a side sectional view of the utility model;

[0019] Figure 3 This is a schematic diagram of the location of the drainage hole of the present invention.

[0020] In the figure: pump housing 1, central open surface 2, drainage hole 3, upper cover 4, cooling chamber 5, rotating shaft 6, blades 7, sealing ring 8, sleeve 9, water inlet pipe 10, rubber strip 11. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only 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.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] Example 1: Reference Figure 1-Figure 3 , a water-cooled grease-lubricated bearing high-efficiency split pump device, comprising: a pump casing 1, a split surface 2, a bearing assembly, a cooling groove, a cooling groove 2, a water inlet mechanism, a drainage hole 3 and an upper cover 4. Two cooling grooves are opened on the split surface 2 of the pump casing 1, and each cooling groove is arranged opposite to a cooling groove 2 to form a cooling cavity 5. A bearing assembly is arranged in the cooling cavity 5, and the bearing assembly is respectively connected to the pump casing 1 and the upper cover 4. The cooling groove 2 is opened on the end face of the opening of the upper cover 4, and a sealing member is inserted between the end face and the split surface 2. The pump casing 1 and the upper cover 4 are connected by bolts. A drainage hole 3 is opened at the bottom of the cooling cavity 5, and a water inlet mechanism is connected to the top of the cooling cavity 5.

[0024] The principles and beneficial effects of the above scheme are:

[0025] The middle open surface 2 of the pump casing 1 and the open end surface of the upper cover 4 are in contact with each other and are sealed by a seal. The pump casing 1 and the upper cover 4 are connected by bolts to increase the stability of the device after sealing. When the components in the device are working, the cooling chamber 5 is supplied with water through the water inlet mechanism, and the bearing assembly located therein is cooled by the cooling chamber 5. The water after absorbing heat is discharged through the drain hole 3. By setting up a water inlet mechanism to supply water to the cooling chamber 5, the water in the cooling chamber 5 cools the bearing assembly, which can avoid excessive loss of grease due to excessive temperature when the assembly uses high-power lubricating oil, thereby improving the ability of the device to work under various working conditions.

[0026] Example 2: Reference Figure 1-Figure 3The bearing assembly includes: a bearing and a rotating shaft 6, a bearing groove and a steering groove are opened on the middle open surface 2, the bearing groove is connected with the steering groove through the cooling groove, a bearing groove 2 and a steering groove 2 are provided on the end surface, the bearing groove 2 is connected with the steering groove 2 through the cooling groove 2, the bearing groove and the bearing groove 2 cooperate to install the bearing, the bearing sleeve is arranged on the rotating shaft 6, and a cooling section of the rotating shaft 6 is provided in the cooling cavity 5. The end face of the sealing ring 8 set on the rotating shaft 6 is connected with the cooling cavity 5 to seal one side of the cooling cavity 5.

[0027] The principles and beneficial effects of the above scheme are:

[0028] One side of the cooling chamber 5 is sealed by a sealing ring 8, so when there is flowing water in the cooling chamber 5, it will not cause erosion of the grease on the bearing; the water in the cooling chamber 5 can absorb the heat of the sealing ring 8 and thus achieve the purpose of cooling the bearing. Synchronously, it can also cool down and absorb heat through the cooling section of the rotating shaft 6, thereby reducing the temperature inside the bearing. The combination of multiple cooling methods improves practicality during use.

[0029] Example 3: Reference Figure 1-Figure 3 The rotating shaft 6 is provided with a blade 7, which is placed between the two turning grooves. A sleeve 9 is installed in the turning groove and the turning groove 2 opposite to it. The end of the sleeve 9 seals the other side of the cooling chamber 5, and the inner wall of the sleeve 9 rotates with the side wall of the rotating shaft 6.

[0030] The principles and beneficial effects of the above scheme are:

[0031] While assisting the rotation of the shaft 6, the sleeve 9 can also improve the stability of the shaft 6 during rotation. When the blade 7 starts, the shaft 6 will vibrate due to the influence of inertia and fluid resistance. At this time, the vibration can be buffered by the sleeve 9. Furthermore, the sleeve 9 can seal the other side of the cooling chamber 5 to prevent leakage of the cooling water therein.

[0032] Example 4: Reference Figure 1-Figure 3 The water inlet mechanism includes: a water inlet pipe 10, the top of the water inlet pipe 10 is connected to the top of the upper cover 4, the bottom end of the water inlet pipe 10 is connected to the side of the upper cover 4, the bottom end of the water inlet pipe is connected to the water inlet hole on the side of the upper cover 4, the water inlet hole is arranged toward the U-shaped guide groove on the side wall of the sleeve 9, and the end of the U-shaped guide groove is arranged toward the cooling chamber 5.

[0033] The principles and beneficial effects of the above scheme are:

[0034] The water inlet pipe 10 can guide the water into the cooling chamber 5 when the device is working, and then guide the water into the U-shaped guide groove, and further enter the cooling chamber 5 through the guidance of the U-shaped guide groove, which greatly reduces the complexity of the device.

[0035] Example 5: Reference Figure 1-Figure 3 , a check valve is provided in the water inlet pipe 10.

[0036] The principles and beneficial effects of the above scheme are:

[0037] The check valve can prevent the water in the cooling chamber 5 from flowing back, thereby preventing the impurities in the cooling chamber 5 from damaging the interior of the pump housing 1 .

[0038] Example 6: Reference Figure 1-Figure 3 A filter is provided in the water inlet pipe 10, and the filter is arranged above the check valve.

[0039] The principles and beneficial effects of the above scheme are:

[0040] The filter screen can filter the water in the water inlet pipe 10 to prevent the water inlet pipe 10 from being blocked.

[0041] Example 7: Reference Figure 1-Figure 3 The inner wall of the water outlet of the pump housing 1 is penetrated by a mounting hole, the bottom end of the drain pipe is inserted into the mounting hole, and the top end of the drain pipe is plugged into the drain hole 3.

[0042] The principles and beneficial effects of the above scheme are:

[0043] The water flowing out of the drainage hole 3 can be discharged through the drainage pipe. When the device is working, the water flowing out of the water outlet of the pump housing 1 has a fast flow rate and a low pressure relative to the water in the drainage pipe, which reduces the difficulty of draining the cooling chamber 5.

[0044] Example 8: Reference Figure 1-Figure 3 The sealing component includes: a rubber strip 11, two slots are opened on the middle open surface 2, the ends of the slots are connected to the bearing slots, the bottom of the rubber strip 11 is inserted into the slots, and the ends of the rubber strip 11 are in contact with the side of the bearing.

[0045] The end surface is provided with two second clamping grooves, the ends of the second clamping grooves are communicated with the second bearing grooves, and the tops of the rubber strips 11 are inserted into the second clamping grooves.

[0046] The principles and beneficial effects of the above scheme are:

[0047] The top and bottom of the rubber strip 11 are respectively plugged into the card slot and the second card slot, which increases the installation firmness of the rubber strip 11 and improves the sealing performance between the pump housing 1 and the upper cover 4.

[0048] Example 9: Reference Figure 1-Figure 3 The bottom of the pump housing 1 is provided with a mounting seat, the side of the pump housing 1 is provided with a motor, and the end of the rotating shaft 6 passing through the outside of the pump housing 1 is connected to the output end of the motor.

[0049] The principles and beneficial effects of the above scheme are:

[0050] The mounting base improves the stability of the device during operation, and the side of the pump housing 1 provides space for the installation of the motor.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention, and any reference numerals in the claims should not be construed as limiting the claims to which they relate.

Claims

1. A water-cooled grease-lubricated bearing high-efficiency split-case pump device, characterized in that: include: A pump casing (1) is provided with two cooling grooves on the central opening surface (2) of the pump casing (1), each cooling groove is arranged opposite to a second cooling groove to form a cooling cavity (5), a bearing assembly is provided in the cooling cavity (5), and the bearing assembly is respectively connected to the pump casing (1) and the upper cover (4), the second cooling groove is provided on the end surface of the upper cover (4), a sealing member is inserted between the end surface and the central opening surface (2), the pump casing (1) and the upper cover (4) are connected by bolts, a drainage hole (3) is provided at the bottom of the cooling cavity (5), and a water inlet mechanism is connected to the top of the cooling cavity (5).

2. A water-cooled grease-lubricated bearing high-efficiency split-case pump device according to claim 1, characterized in that: The bearing assembly comprises: a bearing, a bearing groove and a steering groove are formed on the middle open surface (2), the bearing groove is connected to the steering groove through a cooling groove, a bearing groove 2 and a steering groove 2 are formed on the end surface, the bearing groove 2 is connected to the steering groove 2 through the cooling groove 2, the bearing groove and the bearing groove 2 cooperate to install the bearing, the bearing sleeve is arranged on the rotating shaft (6), a cooling section of the rotating shaft (6) is provided in the cooling cavity (5), and the end surface of the sealing ring (8) set on the rotating shaft (6) is connected to the cooling cavity (5) to seal one side of the cooling cavity (5).

3. A water-cooled grease-lubricated bearing high-efficiency split-case pump device according to claim 2, characterized in that: The rotating shaft (6) is provided with a blade (7), which is placed between two turning grooves. A sleeve (9) is installed in the turning groove and the second turning groove opposite to it. The end of the sleeve (9) seals the other side of the cooling cavity (5), and the inner wall of the sleeve (9) is rotatably matched with the side wall of the rotating shaft (6).

4. A water-cooled grease-lubricated bearing high-efficiency split-case pump device according to claim 3, characterized in that: The water inlet mechanism comprises: a water inlet pipe (10), the top end of the water inlet pipe (10) is connected to the top of the upper cover (4), the bottom end of the water inlet pipe (10) is connected to the side of the upper cover (4), the bottom end of the water inlet pipe is connected to the water inlet hole on the side of the upper cover (4), the water inlet hole is arranged toward the U-shaped guide groove on the side wall of the sleeve (9), and the end of the U-shaped guide groove is arranged toward the cooling chamber (5).

5. A water-cooled grease-lubricated bearing high-efficiency split-case pump device according to claim 4, characterized in that: A check valve is provided in the water inlet pipe (10).

6. A water-cooled grease-lubricated bearing high-efficiency split-case pump device according to claim 5, characterized in that: A filter is provided in the water inlet pipe (10), and the filter is arranged above the check valve.

7. A water-cooled grease-lubricated bearing high-efficiency split case pump device according to claim 1, characterized in that: The inner wall of the water outlet of the pump housing (1) is penetrated by a mounting hole, the bottom end of the drainage pipe is inserted into the mounting hole, and the top end of the drainage pipe is plugged into and matched with the drainage hole (3).

8. The high-efficiency split case pump device for water-cooled grease-lubricated bearings according to claim 2, characterized in that: The sealing element comprises a rubber strip (11), two slots are formed on the middle open surface (2), the ends of the slots are connected to the bearing slots, the bottoms of the rubber strip (11) are inserted into the slots, and the ends of the rubber strip (11) are in contact with the sides of the bearing.

9. A water-cooled grease-lubricated bearing high-efficiency split case pump device according to claim 8, characterized in that: The end surface is provided with two second clamping grooves, the ends of the second clamping grooves are communicated with the second bearing groove, and the tops of the rubber strips (11) are inserted into the second clamping grooves.

10. A water-cooled grease-lubricated bearing high-efficiency split case pump device according to claim 7, characterized in that: The bottom of the pump housing (1) is provided with a mounting seat, the side of the pump housing (1) is provided with a motor, and the end of the rotating shaft (6) passing through the outside of the pump housing (1) is connected to the output end of the motor.

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