Constant-temperature hydraulic station suitable for centerless grinding machine
By introducing an oil temperature cooler and a high-precision filter into the hydraulic station of the centerless grinder, the problem of decreased equipment accuracy caused by excessively high oil temperature was solved, the stable operation of the hydraulic system was achieved, and the normal operation of the centerless grinder was ensured.
Patent Information
- Application Number
- CN202422828656.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-20
AI Technical Summary
During operation, centerless grinders may experience a decrease in precision or even malfunction due to excessively high oil temperature. Existing hydraulic stations cannot effectively control the oil temperature, thus affecting machine tool performance.
The original fan cooling is replaced by an oil temperature cooler. The oil temperature cooler is designed specifically for precision industry. It is combined with an inverted plate-type pipeline high-pressure filter and a Q235 steel plate welded oil tank to ensure oil temperature stability and filtration accuracy. A variable vane pump is used to provide stable power.
Stable control of hydraulic oil temperature was achieved, ensuring stable operation of the equipment, avoiding the problem of decreased accuracy caused by excessive oil temperature, and guaranteeing the long-term normal operation of the centerless grinder.
Smart Images

Figure CN223483050U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic technology for centerless grinders, and specifically to a constant temperature hydraulic station suitable for centerless grinders. Background Technology
[0002] With the rapid development of the machinery industry, centerless grinders play an indispensable role in the precision machining of rotating bodies. The hydraulic station, as the main power source supporting the hydrostatic or hydrodynamic spindle of the centerless grinder, is also the core power source for the movement of the hydraulic cylinder, which directly affects the performance of the machine tool. The heat generated during the operation of the equipment has a direct impact on the accuracy of the equipment. When the oil temperature is too high, it may even cause the machine tool to fail to operate, which increases the requirements for hydraulic constant temperature equipment accordingly.
[0003] In view of this, the present invention provides a constant temperature hydraulic station suitable for centerless grinders. Summary of the Invention
[0004] The purpose of this utility model is to provide a constant temperature hydraulic station suitable for centerless grinders, specifically a hydraulic device that can provide constant temperature hydraulic power and stable operation, ensuring normal operation of the centerless grinder under long-term operation.
[0005] To solve the above-mentioned technical problems, this utility model achieves this through the following technical solution:
[0006] A constant-temperature hydraulic station suitable for a centerless grinder includes a hydraulic station and an oil temperature cooler. The hydraulic station includes an oil tank, an oil pump motor, a hydraulic pump, a hydraulic oil filter, a hydraulic station breather, an oil injection filter, and an oil pressure gauge. An oil tank cover is provided on the oil tank cover, and the oil pump motor, hydraulic pump, hydraulic oil filter, hydraulic station breather, oil injection filter, and oil pressure gauge are mounted on the oil tank cover. The oil pump motor and hydraulic pump are connected. The hydraulic pump is connected to the hydraulic oil filter via an oil pump outlet pipe, and the hydraulic pump is connected to the oil tank via an oil pump return pipe. The hydraulic oil filter has an inlet pipe and a return pipe.
[0007] The side of the oil tank is equipped with a cooling oil inlet and a cooling oil outlet, which are respectively connected to the oil temperature cooler.
[0008] The oil tank is also equipped with an oil outlet filter, a cooling oil outlet filter, a cooling oil return filter, a cooling oil return pipe, an oil outlet return pipe, and an oil outlet suction pipe. The cooling oil outlet filter is connected to the cooling oil inlet; the oil outlet filter is connected to the oil outlet suction pipe; the cooling oil return filter is connected to the cooling oil outlet through the cooling oil return pipe; and the oil outlet return pipe is connected to the hydraulic oil filter.
[0009] The oil temperature cooler is designed specifically for precision industry and industrial machinery. It must be able to provide high-precision oil temperature control, with a rated cooling capacity of ≥3.5KW (based on an ambient temperature of 35℃ and an oil inlet temperature of 28℃), and must be suitable for cooling hydraulic oil.
[0010] Furthermore, an oil level gauge is provided at the rear of the oil tank.
[0011] Furthermore, the fuel tank cover is also equipped with a fuel tank cleaning cover.
[0012] Furthermore, the hydraulic oil filter is equipped with a pressure reducing valve cover and a hydraulic oil passage block; the hydraulic oil passage block is made of 45# steel and the surface is blackened after processing, and the surface roughness of the contact surface needs to reach 0.8 micrometers or less.
[0013] Furthermore, the oil filter is located in one corner of the oil tank cover.
[0014] Furthermore, the oil tank is mainly constructed of Q235 steel plate, with the surface painted in RAL9005 dark black. The interior is fully welded to ensure no oil leakage, and it needs to be filled with hydraulic oil and tested for 48 hours without leaking.
[0015] Furthermore, the hydraulic pump is a variable vane pump with a flow rate of 30L / min or higher.
[0016] Furthermore, the hydraulic oil filter is an inverted plate-type pipeline high-pressure filter with a filtration accuracy of 10 microns.
[0017] This utility model has the following features:
[0018] 1. This utility model replaces the ordinary fan cooling with an oil temperature cooler on the basis of the original hydraulic station, which cools the hydraulic oil temperature to the required temperature, thereby ensuring the stability of the oil temperature and ensuring the stable operation of the equipment.
[0019] 2. The oil tank of this utility model is mainly made of Q235 steel plate welded together, and the surface is painted with RAL9005 black ink. The interior is fully welded to ensure no oil leakage. It needs to be filled with hydraulic oil and tested for 48 hours without oil leakage to ensure that the hydraulic station oil tank does not leak oil during operation.
[0020] 3. The hydraulic oil filter of this utility model adopts an inverted plate type pipeline high-pressure filter with a filtration accuracy of 10 microns.
[0021] 4. The hydraulic oil circuit block of this utility model is made of 45# steel and the surface is blackened after processing. The surface roughness of the contact surface must reach 0.8 micrometers or less. Attached Figure Description
[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0023] Figure 2 This is a front view of the hydraulic station of this utility model;
[0024] Figure 3 This is a schematic diagram of the back of the hydraulic station of this utility model;
[0025] Figure 4 This is a rear view of the hydraulic station of this utility model;
[0026] Figure 5 for Figure 4 AA cross-sectional view.
[0027] The diagram shows the following markings: 1-Hydraulic station, 2-Oil temperature cooler, 3-Oil tank, 4-Oil injection filter, 5-Oil tank cleaning cover, 6-Oil tank cover plate, 7-Oil pump motor, 8-Hydraulic pump, 9-Hydraulic manifold block, 10-Hydraulic oil filter, 11-Hydraulic station breather, 12-Pressure reducing valve cover plate, 13-Oil inlet pipe, 14-Oil return pipe, 15-Oil level gauge, 16-Oil pump outlet pipe, 17-Cooling oil inlet, 18-Cooling oil outlet, 19-Oil pump return pipe, 20-Oil pressure gauge, 21-Oil outlet filter, 22-Cooling oil outlet filter, 23-Cooling oil return filter, 24-Cooling oil return pipe, 25-Oil outlet and return pipe, 26-Oil outlet suction pipe. Detailed Implementation
[0028] The following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation method, structure, features, and effects of a constant temperature hydraulic station suitable for centerless grinding machines proposed according to this utility model.
[0029] See appendix Figure 1-5 A constant-temperature hydraulic station suitable for a centerless grinder includes a hydraulic station 1 and an oil temperature cooler 2. The hydraulic station 1 includes an oil tank 3, an oil pump motor 7, a hydraulic pump 8, a hydraulic oil filter 10, a hydraulic station breather 11, an oil injection filter 4, and an oil pressure gauge 20. An oil tank cover 6 is provided on the oil tank 3, and the oil pump motor 7, hydraulic pump 8, hydraulic oil filter 10, hydraulic station breather 11, oil injection filter 4, and oil pressure gauge 20 are provided on the oil tank cover 6. The oil pump motor 7 and the hydraulic pump 8 are connected. The hydraulic pump 8 is connected to the hydraulic oil filter 10 through an oil pump outlet pipe 16, and the hydraulic pump 8 is connected to the oil tank 3 through an oil pump return pipe 19. The hydraulic oil filter 10 is provided with an oil inlet pipe 13 and an oil return pipe 14.
[0030] The side of the oil tank 3 is provided with a cooling oil inlet 17 and a cooling oil outlet 18, which are respectively connected to the oil temperature cooler 2.
[0031] The oil tank 3 is also equipped with an oil outlet filter 21, a cooling oil outlet filter 22, a cooling oil return filter 23, a cooling oil return pipe 24, an oil outlet return pipe 25, and an oil outlet suction pipe 26. The cooling oil outlet filter 22 is connected to the cooling oil inlet 17; the oil outlet filter 21 is connected to the oil outlet suction pipe 26; the cooling oil return filter 23 is connected to the cooling oil outlet 18 through the cooling oil return pipe 24; and the oil outlet return pipe 25 is connected to the hydraulic oil filter 10.
[0032] The oil temperature cooler 2 is an oil temperature cooler designed specifically for precision industry and industrial machinery. It needs to provide high-precision oil temperature control, with a rated cooling capacity of ≥3.5KW (based on an ambient temperature of 35℃ and an oil inlet temperature of 28℃), and needs to be suitable for cooling hydraulic oil.
[0033] An oil level gauge 15 is provided at the rear of the oil tank 3.
[0034] The fuel tank cover 6 is also equipped with a fuel tank cleaning cover 5.
[0035] The hydraulic oil filter 10 is equipped with a pressure reducing valve cover plate 12 and a hydraulic oil circuit block 9; the hydraulic oil circuit block 9 is made of 45# steel and the surface is blackened after processing, and the surface roughness of the contact surface needs to reach 0.8 micrometers or less.
[0036] The oil filter 4 is located on one corner of the oil tank cover plate 6.
[0037] The oil tank 3 is made of Q235 steel plate welded as the main body, and the surface is painted with RAL9005 black paint. The inside is fully welded to ensure no oil leakage. It needs to be filled with hydraulic oil and tested for 48 hours without leakage.
[0038] The hydraulic pump 8 is a variable vane pump with a flow rate of 30L / min or higher.
[0039] The hydraulic oil filter 10 is an inverted plate type pipeline high-pressure filter with a filtration accuracy of 10 microns.
[0040] The main function of the oil tank 3 of the hydraulic station 1 is to provide storage space for hydraulic oil and to provide operating and installation conditions for other auxiliary components; the oil filter 4 prevents the entry of impurities; the oil tank cleaning cover 5 facilitates temporary observation and cleaning of the hydraulic station; the oil tank cover 6 facilitates inspection of the internal condition of the hydraulic station during maintenance; the oil pump motor 7 provides power to the hydraulic pump 8; the hydraulic pump 8 provides power for the hydraulic oil to enter the actuators; the hydraulic oil circuit block 9 distributes the oil circuit according to the predetermined route; the hydraulic oil filter 10 fully filters the hydraulic oil pumped by the hydraulic pump 8, filtering out the hydraulic oil. Impurities such as water rust and iron filings are prevented from entering the actuator and causing potential hazards; the hydraulic station breather 11 filters water vapor entering the hydraulic oil, preventing water vapor from entering the actuator and causing cavitation; the pressure reducing valve cover 12 provides an installation environment when it is necessary to add or remove pressure reducing valves; the oil level gauge 15 facilitates the observation of the hydraulic oil level inside the oil tank at any time; the oil pressure gauge 20 facilitates the observation of the pressure of the hydraulic oil pumped out by the hydraulic pump 8 at any time; the oil outlet filter 21, the cooling oil outlet filter 22, and the cooling oil return filter 23 can all filter out larger impurities mixed in when the hydraulic oil enters and exits.
[0041] Those skilled in the art will understand that the oil temperature cooler, oil tank, hydraulic pump, hydraulic manifold block, and hydraulic oil filter mentioned in this utility model are components used to perform one or more of the structures, operations, methods, measures, and schemes described in this application. These components may be specifically designed and manufactured for the desired purpose, or they may utilize components known in the machinery industry or other known equipment. Other undescribed parts of this utility model are the same as or implemented using existing technology.
[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A constant-temperature hydraulic station suitable for centerless grinding machines, characterized in that: The system includes a hydraulic station (1) and an oil temperature cooler (2). The hydraulic station (1) includes an oil tank (3), an oil pump motor (7), a hydraulic pump (8), a hydraulic oil filter (10), a hydraulic station breather (11), an oil injection filter (4), and an oil pressure gauge (20). The oil tank (3) is equipped with an oil tank cover plate (6). The oil tank cover plate (6) is equipped with an oil pump motor (7), a hydraulic pump (8), a hydraulic oil filter (10), a hydraulic station breather (11), an oil injection filter (4), and an oil pressure gauge (20). The oil pump motor (7) and the hydraulic pump (8) are connected. The hydraulic pump (8) is connected to the hydraulic oil filter (10) through an oil pump outlet pipe (16). The hydraulic pump (8) is connected to the oil tank (3) through an oil pump return pipe (19). The hydraulic oil filter (10) is equipped with an oil inlet pipe (13) and an oil return pipe (14). The side of the oil tank (3) is provided with a cooling oil inlet (17) and a cooling oil outlet (18), which are respectively connected to the oil temperature cooler (2); The oil tank (3) is also equipped with an oil outlet filter (21), a cooling oil outlet filter (22), a cooling oil return filter (23), a cooling oil return pipe (24), an oil outlet return pipe (25), and an oil outlet suction pipe (26). The cooling oil outlet filter (22) is connected to the cooling oil inlet (17); the oil outlet filter (21) is connected to the oil outlet suction pipe (26); the cooling oil return filter (23) is connected to the cooling oil outlet (18) through the cooling oil return pipe (24); and the oil outlet return pipe (25) is connected to the hydraulic oil filter (10). The oil temperature cooler (2) is an oil temperature cooler designed specifically for precision industry and industrial machinery, with a rated cooling capacity of greater than or equal to 3.5KW.
2. The constant temperature hydraulic station suitable for a centerless grinder as described in claim 1, characterized in that: An oil level gauge (15) is provided at the rear of the oil tank (3).
3. A constant-temperature hydraulic station suitable for a centerless grinder as described in claim 1, characterized in that: The fuel tank cover (6) is also provided with a fuel tank cleaning cover (5).
4. A constant-temperature hydraulic station suitable for a centerless grinder as described in claim 1, characterized in that: The hydraulic oil filter (10) is provided with a pressure reducing valve cover plate (12) and a hydraulic oil circuit block (9); the hydraulic oil circuit block (9) is made of 45# steel and the surface is blackened after processing, and the surface roughness of the contact surface reaches 0.8 micrometers or less.
5. A constant-temperature hydraulic station suitable for a centerless grinder as described in claim 1, characterized in that: The oil filter (4) is located on one corner of the oil tank cover plate (6).
6. A constant-temperature hydraulic station suitable for a centerless grinder as described in claim 1, characterized in that: The oil tank (3) is made of Q235 steel plate welded as the main body, and the surface is painted with RAL9005 black paint. The interior is fully welded.
7. A constant-temperature hydraulic station suitable for a centerless grinder as described in claim 1, characterized in that: The hydraulic pump (8) is a variable vane pump with a flow rate of 30L / min or higher.
8. A constant temperature hydraulic station suitable for a centerless grinder as described in claim 1, characterized in that: The hydraulic oil filter (10) is an inverted plate type pipeline high-pressure filter with a filtration accuracy of 10 microns.