A temperature-controlled pressure plug-in valve group for a wind turbine gearbox lubricating oil valve block

Abstract

The application provides a temperature control pressure plug-in valve group for a wind power gear box lubricating oil valve block, which comprises a dual-purpose valve body and a pressure valve sleeve, the middle part of the dual-purpose valve body is provided with a reset spring, one end of the reset spring is provided with a temperature control valve core, one end of the temperature control valve core is arranged in an execution end of a wax package, the wax package is arranged in the inside of a closed end cover, and one end of the closed end cover is provided with a locking expansion ring; the dual-purpose valve body is adapted to a temperature control valve component to form a temperature control valve on one hand, and the temperature control valve component is replaced by the pressure valve sleeve to adapt to a standard pressure plug-in valve group on the other hand, so that the difficulty and the reconstruction cost of changing the temperature control to the pressure control of the wind power gear oil are greatly reduced, and the possibility of restoring the temperature control is reserved, thereby the equipment technical reconstruction cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural production equipment, in particular to a temperature control pressure plug-in valve group for a wind power gear box lubricating oil valve block. BACKGROUND

[0002] The wind turbine gear box is installed in the top cabin of the tower drum, and an online lubricating system is used to ensure the safe and stable operation of the gear box. The lubricating system filters impurities in the lubricating oil, dissipates heat to control the oil temperature within a reasonable range, ensures good lubrication and cooling effect of the gear box, and ensures reasonable system pressure.

[0003] The lubricating system is composed of an oil pump, a filter, a radiator, a temperature control valve, a distributor, a safety valve, etc., and the gear oil generally uses ISO VG 320 gear oil.

[0004] There are some problems with the temperature control valve in actual use; therefore, in recent years, using the principle that different temperatures of gear oil have different viscosities and different viscosities produce different flow resistances, a pressure control valve has been used to replace the temperature control valve, and the technical improvement has become a trend. The core technology is to use a spring to replace a wax package, and the technical improvement has achieved good results.

[0005] There are only two ways to improve the existing temperature control valve to a pressure valve, one is to re-produce the valve block and install the pressure valve, which has the disadvantage of increasing cost and workload; the other is to install the pressure valve in the valve block, which has the disadvantage of high cost and narrow installation space. SUMMARY

[0006] In view of the above problems, the present application provides a temperature control pressure plug-in valve group for a wind power gear box lubricating oil valve block, which aims to solve the technical problems of difficulty and high cost in changing the temperature control of wind power gear oil to pressure control.

[0007] To achieve the above purpose, the present application provides the following technical scheme: a temperature control pressure plug-in valve group for a wind power gear box lubricating oil valve block, comprising a dual-purpose valve body and a pressure valve sleeve, a reset spring is arranged in the middle of the dual-purpose valve body, one end of the reset spring is provided with a temperature control valve core, one end of the temperature control valve core is arranged at the execution end of a wax package, the wax package is arranged in the inside of a closed end cover, and one end of the closed end cover is provided with a locking expansion ring.

[0008] Further, a main oil inlet is arranged on the top surface of the dual-purpose valve body, a main oil outlet is arranged on one side of the dual-purpose valve body, a secondary oil outlet is arranged on one side of the main oil outlet, an oil passage hole is arranged on one side in the inside of the main oil inlet, a spring mounting cavity is arranged at one end of the oil passage hole, a temperature control valve mounting cavity is arranged at one end of the spring mounting cavity, an expansion groove is arranged at one end of the temperature control valve mounting cavity and one end of the dual-purpose valve body, and a plurality of fixed through holes are arranged around the main oil inlet.

[0009] Further, a valve sleeve limiting shoulder is arranged between the spring mounting cavity and the temperature control valve mounting cavity, and an end cover shoulder is arranged between the temperature control valve mounting cavity and the tensioning groove.

[0010] Further, the pressure valve sleeve comprises a valve sleeve body, one end of the valve sleeve body is provided with an inner oil inlet, the outer side of the middle part of the valve sleeve body is provided with a valve sleeve fixing shoulder, a plurality of inner oil outlets are arranged in the middle part of the valve sleeve body, the outer side of the other end of the valve sleeve body is provided with a valve sleeve sealing ring, and the inner side of the other end of the valve sleeve body is provided with a pressure valve internal thread.

[0011] Further, the diameter of the inner oil inlet is consistent with the diameter of the oil hole.

[0012] Further, the diameter of the outer side of one end of the valve sleeve body is slightly smaller than the inner diameter of the spring mounting cavity.

[0013] Further, the temperature control valve core comprises a valve flap, one side of the valve flap is provided with a plurality of support stresses, and one end of each of the plurality of support stresses is arranged on one side of the valve core sliding seat.

[0014] Further, the outer side of the valve flap and the outer side of the valve core sliding seat are respectively provided with a valve core sealing ring.

[0015] Further, the middle part of the closed end cover is provided with an end cover fixing shoulder, and the outer side of the end cover fixing shoulder is provided with an end cover sealing ring.

[0016] Further, the pressure valve sleeve can replace the reset spring, the temperature control valve core, the wax package and the closed end cover, and is arranged in the middle part of the dual-purpose valve body and is fixed by the locking tension ring, and is used for quickly installing a standard pressure plug-in valve group.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] Through the dual-purpose valve body, on one hand, the temperature control valve components are adapted to form a temperature control valve, and on the other hand, the temperature control valve components are replaced by the pressure valve sleeve to adapt to a standard pressure plug-in valve group, which greatly reduces the difficulty and transformation cost of changing the wind power gear oil from temperature control to pressure control, and also retains the possibility of restoring temperature control, thereby reducing the equipment technical transformation cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic diagram of the appearance structure of the present application;

[0020] Figure 2 is a schematic diagram of the internal structure of the present application;

[0021] Figure 3 is a schematic diagram of the internal structure of the present application;

[0022] Figure 4 is the internal structure split schematic diagram of the present application;

[0023] Figure 5 is the two-purpose valve body structure sectional view schematic diagram of the present application;

[0024] Figure 6 is the pressure valve sleeve structure sectional view schematic diagram of the present application;

[0025] Figure 7 is the temperature control valve core structure sectional view schematic diagram of the present application;

[0026] Figure 8 is the closed end cap structure schematic diagram of the present application;

[0027] Figure 9 is the two-purpose valve body and pressure valve sleeve structure sectional view schematic diagram of the present application.

[0028] In the figure: 1, two-purpose valve body; 11, main oil inlet; 12, main oil outlet; 13, auxiliary oil outlet; 14, oil hole; 15, spring installation cavity; 151, valve sleeve limiting shoulder; 16, temperature control valve installation cavity; 161, end cap shoulder; 17, expansion groove; 18, fixed through hole; 2, pressure valve sleeve; 21, valve sleeve body; 22, inner oil inlet; 23, valve sleeve fixed shoulder; 24, inner oil outlet; 25, valve sleeve sealing ring; 26, pressure valve internal thread; 3, reset spring; 4, temperature control valve core; 41, valve clapper; 411, valve core sealing ring; 42, support cheek; 43, valve core sliding seat; 5, wax package; 6, closed end cap; 61, end cap fixed shoulder; 62, end cap sealing ring; 7, locking expansion ring. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present application are given, but the present application can be realized in different forms and is not limited to the embodiments described in the text, on the contrary, these embodiments are provided to make the disclosed content of the present application more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be a middle element, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The use herein of the terms "including", "comprising", "having" and the like are meant to encompass the items listed thereafter as well as other items.

[0032] Embodiment, please refer to Figures 1-4 A temperature control pressure plug-in valve group for a wind turbine gearbox lubricating oil valve block, comprising a dual-purpose valve body 1 and a pressure valve sleeve 2, the middle part of the dual-purpose valve body 1 is provided with a reset spring 3, one end of the reset spring 3 is provided with a temperature control valve core 4, one end of the temperature control valve core 4 is arranged at the execution end of a wax package 5, the wax package 5 is arranged inside a closed end cover 6, one end of the closed end cover 6 is provided with a locking expansion ring 7.

[0033] Embodiment, please refer to Figure 5 The top surface of the dual-purpose valve body 1 is provided with a main oil inlet 11, one side of the dual-purpose valve body 1 is provided with a main oil outlet 12 which is communicated with the main oil inlet 11, one side of the main oil outlet 12 is provided with a secondary oil outlet 13, one side of the inside of the main oil inlet 11 is provided with an oil passage hole 14, one end of the oil passage hole 14 is provided with a spring mounting cavity 15, one end of the spring mounting cavity 15 is provided with a temperature control valve mounting cavity 16, the secondary oil outlet 13 is communicated with the temperature control valve mounting cavity 16, one end of the temperature control valve mounting cavity 16 and one end of the dual-purpose valve body 1 are provided with a tensioning groove 17, the periphery of the main oil inlet 11 is provided with a plurality of fixed through holes 18, a valve sleeve limiting shoulder 151 is arranged between the spring mounting cavity 15 and the temperature control valve mounting cavity 16, an end cover shoulder 161 is arranged between the temperature control valve mounting cavity 16 and the tensioning groove 17.

[0034] Embodiment, please refer to Figure 6 The pressure valve sleeve 2 comprises a valve sleeve body 21, one end of the valve sleeve body 21 is provided with an inner oil inlet 22, the outer side of the middle part of the valve sleeve body 21 is provided with a valve sleeve fixed shoulder 23 which is used to abut against the valve sleeve limiting shoulder 151, a plurality of inner oil outlets 24 are arranged in the middle part of the valve sleeve body 21, the outer side of the middle part of the pressure valve sleeve 2 and the temperature control valve slider mounting cavity form an annular channel, the outer side of the other end of the valve sleeve body 21 is provided with a valve sleeve sealing ring 25, the inner side of the other end of the valve sleeve body 21 is provided with a pressure valve inner thread 26 which is used to threadedly connect a standard pressure plug-in valve group, the diameter of the inner oil inlet 22 is consistent with the diameter of the oil passage hole 14, so as to ensure that the flow rate in the valve body is consistent, the diameter of the outer side of one end of the valve sleeve body 21 is slightly smaller than the inner diameter of the spring mounting cavity 15, the one end of the valve sleeve body 21 is clearance fitted with the spring mounting cavity 15, so as to ensure that the valve sleeve body 21 is not free to rotate in the spring mounting cavity 15.

[0035] Embodiment, please refer to Figure 7 , the temperature control valve core 4 includes a valve 41, one side of the valve 41 is provided with a plurality of support 42, for strengthening the temperature control valve core 4 structural strength while reducing the influence of the valve on the flow rate, a plurality of the support 42 is provided with a valve core slide 43 on one side, the outer side of the valve 41 and the outer side of the valve core slide 43 are respectively provided with a valve core sealing ring 411.

[0036] Embodiment, please refer to Figure 8 , the middle of the closed end cover 6 is provided with an end cover fixed shoulder 61, and the outer side of the end cover fixed shoulder 61 is provided with an end cover sealing ring 62.

[0037] Embodiment, please refer to Figure 9 , the pressure valve sleeve 2 can replace the reset spring 3, the temperature control valve core 4, the wax package 5 and the closed end cover 6, and is arranged in the middle of the dual-purpose valve body 1 and is fixed through the locking expansion ring 7, so that a standard pressure plug-in valve group is quickly installed, and temperature control is quickly and conveniently changed into pressure control.

[0038] Operation principle: first, the dual-purpose valve body 1 is connected with the system pipeline, when the temperature rises, the wax package 5 pushes the temperature control valve core 4, and the closed auxiliary oil outlet 13 is closed; when the temperature drops, the wax package 5 is retracted, and the temperature control valve core 4 slides under the action of the reset spring 3, so that the auxiliary oil outlet 13 is opened; when it is required to change the temperature control into pressure control, the expansion ring 7 is removed, the closed end cover 6, the wax package 5, the temperature control valve core 4 and the reset spring 3 are taken out, the pressure valve sleeve 2 is sent into the dual-purpose valve body 1, one end of the valve sleeve body 21 is in clearance fit with the spring mounting cavity 15, the valve sleeve fixed shoulder 23 is in abutment with the valve sleeve limiting shoulder 151, the expansion ring 7 is placed in the expansion groove 17, so that the pressure valve sleeve 2 is locked, and the standard pressure plug-in valve group is threadedly connected to the pressure valve inner thread 26, that is, the operation is completed.

[0039] The application is described above by way of example with reference to the drawings. Obviously, the specific implementation of the application is not limited to the above manner, and any non-essential improvement or direct application of the inventive concept and technical solution to other occasions is within the protection scope of the application.

Claims

1. A temperature controlled pressure cartridge valve package for a wind turbine gearbox lubricating oil valve block, characterized by: Including dual-purpose valve body (1) and pressure valve sleeve (2), the middle part of the dual-purpose valve body (1) is provided with reset spring (3), one end of the reset spring (3) is provided with temperature control valve core (4), one end of the temperature control valve core (4) is arranged in the execution end of wax package (5), the wax package (5) is arranged in the inside of closed end cover (6), one end of the closed end cover (6) is provided with locking expansion ring (7); The pressure valve sleeve (2) can replace the reset spring (3), the temperature control valve core (4), the wax package (5) and the closed end cover (6), is arranged in the middle part of the dual-purpose valve body (1), is fixed through the locking expansion ring (7), is used for quickly installing standard pressure plug-in valve group; The top surface of the dual-purpose valve body (1) is provided with main oil inlet (11), one side of the dual-purpose valve body (1) is provided with main oil outlet (12), the main oil outlet (12) is communicated with the main oil inlet (11), one side of the main oil outlet (12) is provided with auxiliary oil outlet (13), one side of the inside of the main oil inlet (11) is provided with oil hole (14), one end of the oil hole (14) is provided with spring mounting cavity (15), one end of the spring mounting cavity (15) is provided with temperature control valve mounting cavity (16), the auxiliary oil outlet (13) is communicated with the temperature control valve mounting cavity (16), one end of the temperature control valve mounting cavity (16) and one end of the dual-purpose valve body (1) are provided with expansion groove (17), the periphery of the main oil inlet (11) is provided with a plurality of fixed through holes (18); The spring mounting cavity (15) and the temperature control valve mounting cavity (16) are provided with valve sleeve limiting shoulder (151), the temperature control valve mounting cavity (16) and the expansion groove (17) are provided with end cover shoulder (161); The pressure valve sleeve (2) includes valve sleeve body (21), one end of the valve sleeve body (21) is provided with inner oil inlet (22), the outer side of the middle part of the valve sleeve body (21) is provided with valve sleeve fixed shoulder (23), a plurality of inner oil outlets (24) are formed in the middle part of the valve sleeve body (21), the outer side of the other end of the valve sleeve body (21) is provided with valve sleeve sealing ring (25), the inner side of the other end of the valve sleeve body (21) is provided with pressure valve inner thread (26); When the temperature control needs to be changed to pressure control, the expansion ring (7) is removed, the closed end cover (6), the wax package (5), the temperature control valve core (4) and the reset spring (3) are taken out, the pressure valve sleeve (2) is sent into the dual-purpose valve body (1), the one end of the valve sleeve body (21) is in clearance fit with the spring mounting cavity (15), the valve sleeve body (21) is not free to rotate in the spring mounting cavity (15), the valve sleeve fixed shoulder (23) and the valve sleeve limiting shoulder (151) are in abutment, the expansion ring (7) is put into the expansion groove (17), so that the pressure valve sleeve (2) is locked, and the standard pressure plug-in valve group is connected to the pressure valve inner thread (26) through screwing.

2. A temperature controlled pressure cartridge valve group for a wind turbine gearbox lubricating oil valve block according to claim 1, characterized in that: The diameter of the inner oil inlet (22) is consistent with the diameter of the oil hole (14).

3. A temperature controlled pressure cartridge valve group for a wind turbine gearbox lubricating oil valve block according to claim 1, characterized in that: The diameter of the outer side of one end of the valve sleeve body (21) is slightly smaller than the inner diameter of the spring mounting cavity (15).

4. A temperature controlled pressure cartridge valve group for a wind turbine gearbox lubricating oil valve block according to claim 1, characterized in that: The temperature control valve core (4) comprises a valve clack (41), one side of the valve clack (41) is provided with a plurality of support edges (42), one end of each of the plurality of support edges (42) is arranged on one side of a valve core sliding seat (43).

5. A temperature controlled pressure cartridge valve group for a wind turbine gearbox lubricating oil valve block according to claim 4, characterised in that: The outer side of the valve clack (41) and the outer side of the valve core sliding seat (43) are respectively provided with a valve core sealing ring (411).

6. A temperature-controlled pressure cartridge valve assembly for a lubricating oil valve block in a wind turbine gearbox according to claim 1, characterized in that: The middle part of the closed end cover (6) is provided with an end cover fixed shoulder (61), and the outer side of the end cover fixed shoulder (61) is provided with an end cover sealing ring (62).

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