Quantitative lubrication structure and multichannel lubrication device

Abstract

The present application relates to the technical fields of lubrication, more particularly to a kind of quantitative lubrication structure and multi-channel lubricating device, wherein the quantitative lubrication structure, including oil inlet cavity, which is provided with oil inlet for oil inlet;Oil storage cavity, including interval arrangement oil inlet port and oil outlet port, and oil outlet port is connected with oil outlet pipe;First connecting channel, which constitutes the communication structure between oil inlet port and oil inlet cavity;Damping valve core assembly, which is installed in first connecting channel, and under the action of pressure difference between oil inlet cavity and oil storage cavity, the connection passage between oil inlet cavity and oil inlet port is opened / closed;Blocking member, which is placed in the connection passage between oil outlet port and oil outlet pipe, and constitutes the control structure for opening / closing the connection passage.The preferred quantitative lubrication structure of the present application can quantitatively output lubricating oil, reduce the possibility of uneven production quality of multiple workpieces or single steel pipe caused by uneven lubrication, and improve the overall production quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the lubrication technical field, more particularly to a quantitative lubrication structure and a multi-channel lubrication device. BACKGROUND

[0002] In some processes of pipe production, especially in some processes of straight seam steel pipe production, lubrication devices need to be set to lubricate the steel pipe, so as to protect the steel pipe and equipment, avoid excessive friction damage, and the lubricating liquid can also play a cooling role.

[0003] When a plurality of workpieces are processed at the same time, or a plurality of lubrication positions on a long steel pipe need to be lubricated at the same time, in order to save costs and avoid setting too many independent lubricating oil storage and conveying devices, a lubrication system as shown in the accompanying drawings is generally needed. Figure 2 Specifically, one oil inlet pipeline is connected with a plurality of oil outlet channels to realize the adaptation of a single oil inlet pipeline to the oil outlet lubrication of a plurality of spaced-apart oil outlet points.

[0004] It should be noted that when using the above lubrication system for multi-point simultaneous lubrication, such as simultaneous lubrication of a large number of workpieces, uneven production quality between the workpieces is prone to occur, resulting in a large number of unqualified products; or when a single long steel pipe is lubricated at multiple points, uneven production quality distribution at different positions of the steel pipe is prone to occur, which cannot meet the product quality requirements. SUMMARY

[0005] The present application aims at the deficiencies of the prior art, and provides a quantitative lubrication structure capable of quantitatively outputting lubricating oil, and based on the quantitative lubrication structure, a multi-channel lubrication device is provided to quantitatively and uniformly lubricate multiple points, thereby reducing the possibility of uneven production quality of multiple workpieces or a single steel pipe due to uneven lubrication, and improving the overall production quality.

[0006] The technical solution of the present application is as follows:

[0007] A quantitative lubrication structure comprises:

[0008] An oil inlet cavity is provided with an oil inlet port for oil inlet;

[0009] An oil storage cavity comprises spaced-apart oil inlet ports and oil outlet ports, and the oil outlet ports are connected with oil outlet pipes;

[0010] A first connecting channel constitutes a communication structure between the oil inlet port and the oil inlet cavity;

[0011] A damping valve core assembly is arranged in the first connecting channel and opens / closes the connecting passage between the oil inlet cavity and the oil inlet port under the pressure difference between the oil inlet cavity and the oil storage cavity.

[0012] A blocking member is arranged in the connecting passage between the oil outlet port and the oil outlet pipe and constitutes a control structure for opening / closing the connecting passage.

[0013] It should be noted that the above technical solution is proposed by the inventor based on the research on the problem of uneven production quality of multiple workpieces simultaneously lubricated or a single workpiece lubricated at multiple points. The inventor found that the starting point of the problem of uneven production quality is mainly lubrication. Lubrication is directly performed on the workpiece through the connection of the oil inlet pipeline and the oil feeding pipe. The different distances between the oil feeding pipe and the oil inlet point of the oil inlet pipeline easily lead to uneven lubrication, and uneven lubrication will cause some workpieces to overflow and some workpieces to be insufficiently lubricated, which will easily cause problems in subsequent processes, resulting in low production quality.

[0014] Therefore, in the above technical solution, a quantitative lubrication structure for connecting to the oil inlet pipeline to allow the lubricating oil to be quantitatively discharged is provided. The oil storage cavity is arranged in communication with the oil inlet cavity, so that the lubricating oil can be first input into the oil storage cavity, and the connecting passage between the oil inlet cavity and the oil inlet port is closed by the damping valve core assembly. The lubricating oil can be temporarily stored in the oil storage cavity in a quantitative manner. Then, the connecting passage between the oil outlet port and the oil outlet pipe is opened by the blocking member, and the lubricating oil is quantitatively discharged from the oil storage cavity to lubricate the workpiece in a quantitative manner, improve the uniformity of lubrication, and further reduce the possibility of uneven production quality of multiple workpieces or a single steel pipe due to uneven lubrication, thereby improving the overall production quality.

[0015] Further as a preferred scheme, the quantitative lubrication structure further comprises a second connecting channel constituting a communication structure between the oil outlet port and the oil inlet cavity, and the oil outlet pipe is connected to one end of the second connecting channel close to the oil outlet port.

[0016] The blocking member is a blocking valve core which is slidably arranged in the second connecting channel and arranged in the connecting passage between the oil outlet port and the oil inlet cavity. Under the pressure difference between the oil inlet cavity and the oil storage cavity, the blocking valve core opens / closes the connecting passage between the oil outlet port and the oil outlet pipe.

[0017] Further as a preferred scheme, the oil inlet cavity is in communication with the first connecting channel through an oil feeding port, and the oil feeding port has a smaller oil feeding port diameter than the first connecting channel.

[0018] The damping valve core assembly comprises:

[0019] A valve core member is adapted to the diameter of the oil outlet and is slidably arranged in the first connecting channel, and a flow channel for lubricating oil is formed between the side wall of the valve core member and the opposite inner wall of the first connecting channel;

[0020] A damping valve core elastic member is arranged between the inner wall of the first connecting channel and the valve core member and elastically drives the valve core member to press against the oil outlet to block the connecting passage between the oil outlet and the flow channel.

[0021] Further preferably, a first bolt is screwed into the first connecting channel, and one end of the damping valve core elastic member is connected to the first bolt and the other end is connected to the valve core member, so that the state of elastic deformation of the damping valve core elastic member is changed by changing the screwing depth of the first bolt in the first connecting channel.

[0022] Further preferably, the oil outlet port diameter of the oil outlet port is smaller than the second connecting channel diameter of the second connecting channel;

[0023] A blocking valve core elastic member is arranged between the inner wall of the second connecting channel and the blocking valve core, which elastically drives the blocking valve core to press against the oil outlet port to block the connecting passage between the oil outlet pipe and the oil outlet port.

[0024] Further preferably, a second bolt is screwed into the second connecting channel, and one end of the blocking valve core elastic member is connected to the second bolt and the other end is connected to the blocking valve core, so that the state of elastic deformation of the blocking valve core elastic member is changed by changing the screwing depth of the second bolt in the second connecting channel.

[0025] Further preferably, the oil storage cavity is further connected to an energy storage cavity, and a pushing device is arranged in the energy storage cavity to press the lubricating oil contained in the energy storage cavity to push and discharge the lubricating oil in the oil storage cavity.

[0026] Further preferably, the pushing device comprises:

[0027] A piston member is slidably arranged in the energy storage cavity in accordance with the pushing direction;

[0028] An energy storage elastic member is arranged on the side of the piston member away from the oil storage cavity and between the piston member and the inner wall of the energy storage cavity, and the energy storage elastic member constitutes the connecting structure of the elastic movement of the piston member in the sliding direction.

[0029] Further preferably, a third screw is screwed in the energy storage cavity, one end of the energy storage elastic member is connected to the third screw, and the other end is connected to the piston member, so that the installation position of the energy storage elastic member is changed by changing the screwing depth of the third screw in the energy storage cavity.

[0030] A multi-channel lubricating device comprises an oil inlet pipe and a plurality of the above-mentioned quantitative lubricating structures.

[0031] The oil inlet pipe is connected to an oil supply device at one end and is provided with a stop valve or is closed at the other end, and a plurality of oil supply pipes are connected to the oil inlet pipe at intervals between the two ends, each of the oil supply pipes being connected to the oil inlet port of the oil inlet cavity of one of the quantitative lubricating structures.

[0032] The main beneficial effects of the above technical solution are:

[0033] 1. By providing the oil storage cavity connected to the oil inlet cavity, the lubricating oil can be first input into the oil storage cavity, and the connection path between the oil inlet cavity and the oil inlet port can be closed by the damping valve core assembly, so that the lubricating oil can be temporarily stored in the oil storage cavity in a quantitative manner, and then the connection path between the oil outlet port and the oil outlet pipe can be opened by the blocking member, so that the lubricating oil can be discharged from the oil storage cavity in a quantitative manner to lubricate the workpiece, thereby reducing the possibility of uneven production quality of multiple workpieces or single steel pipes caused by uneven lubrication, and improving the overall production quality.

[0034] 2. In the above technical solution, the damping valve core assembly can automatically open / close the connection path between the oil inlet cavity and the oil inlet port under the pressure difference between the oil inlet cavity and the oil storage cavity according to the input amount of lubricating oil in the oil storage cavity, without the need for additional operation, which is more convenient and effective.

[0035] 3. The blocking valve core is used as the blocking member, and the opening / closing of the connection path between the oil outlet port and the oil outlet pipe is controlled by the pressure difference between the oil inlet cavity and the oil storage cavity, which can more conveniently control the discharge of lubricating oil.

[0036] 4. Screws are arranged in the first connection channel, the second connection channel and the energy storage cavity, so that the quantitative lubricating structure can adjust the internal structure in real time according to the demand.

[0037] Further or more detailed beneficial effects will be described in the specific embodiments in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0038] The application will be further described below with reference to the accompanying drawings:

[0039] Figure 1 It is a schematic diagram of the overall assembly.

[0040] Figure 2A schematic view of a multi-channel lubrication.

[0041] Figure 3 A schematic view of a damping spool assembly.

[0042] Figure 4 A schematic view of a spool piece.

[0043] Figure 5 A schematic view of a spool piece from below.

[0044] Figure 6 A schematic view of another damping spool assembly.

[0045] Figure 7 A schematic view of a lubrication action Figure 1 .

[0046] Figure 8 A schematic view of a lubrication action Figure 2 .

[0047] Figure 9 A schematic view of a lubrication action Figure 3 .

[0048] Shown in the figure: an oil inlet chamber 1, an oil inlet port 101, an oil delivery port 102, an oil delivery port diameter 102a, an oil storage chamber 2, an oil inlet port 201, an oil outlet port 202, an oil outlet port diameter 202a, an oil outlet pipe 3, a first connecting channel 4, a first connecting channel diameter 4a, a damping spool assembly 5, a spool piece 501, a damping spool elastic piece 502, a mounting support piece 503, a second connecting channel 6, a second connecting channel diameter 6a, a blocking spool 7, a first bolt 8, a blocking spool elastic piece 9, a second bolt 10, an energy storage chamber 11, a piston piece 12, an energy storage elastic piece 13, a third bolt 14, an oil inlet pipe 15, a stop valve 16, an oil delivery pipe 17, a flow channel x. DETAILED DESCRIPTION

[0049] The following description is merely exemplary of the application and is not intended to limit the application's scope as various modifications can be made to the application without departing from its spirit. Additionally, the terms "vertical", "horizontal", "front", "back", and the like as used in this description, merely describe the orientation or position of the apparatus or element as shown in the drawings and as usual when the product is in use, and are not meant to limit or otherwise impose a particular orientation, configuration, or operation of the apparatus or element, and therefore should not be construed to so limit the application. It is further noted that the terms "connected", "coupled", "connected", or the like, as used in this description, refer not only to direct connections, but also to indirect connections or indirect coupling between devices or elements. The specific meaning of these terms should be understood by those skilled in the art based on the specific context in which they are used. The application will be described in detail below with reference to the drawings and embodiments.

[0050] Embodiment one, a quantitative lubrication structure, as shown in the accompanying drawings Figure 1 It mainly includes an oil inlet chamber 1, an oil storage chamber 2, an oil outlet pipe 3 and a first connecting channel 4.

[0051] Specifically, as shown in the accompanying drawings Figure 1 The oil inlet chamber 1 is provided with an oil inlet port 101 for communicating with the oil feeding pipe 17 on the oil inlet pipe 15 to input lubricating oil; the oil storage chamber 2 includes an oil inlet port 201 and an oil outlet port 202 arranged at intervals, wherein the oil inlet port 201 is communicated with the oil inlet chamber 1 through the first connecting channel 4, and the oil outlet port 202 is communicated with the oil outlet pipe 3 for outputting lubricating oil, so that the lubricating oil can be input from the oil inlet port 101, sequentially flow through the oil inlet chamber 1, the first connecting channel 4, the oil inlet port 201, the oil storage chamber 2, the oil outlet port 202, and then output from the oil outlet pipe 3 to lubricate the workpiece. In this way, the lubricating oil is directly outputted, and the quantitative control of the lubricating oil cannot be realized, which may result in uneven lubrication and affect the production quality of the workpiece.

[0052] Therefore, as shown in the accompanying drawings Figure 1 The damping valve core assembly 5 is arranged in the first connecting channel 4 and controls the connection passage between the oil inlet chamber 1 and the oil inlet port 201 to be opened / closed under the action of the pressure difference between the oil inlet chamber 1 and the oil storage chamber 2. The blocking member is arranged in the connection passage between the oil outlet port 202 and the oil outlet pipe 3 and constitutes a control structure for opening / closing the connection passage.

[0053] As shown in the accompanying drawings Figure 3 and the accompanying drawings Figure 6As shown, the damping valve core assembly 5 can exist in at least two forms:

[0054] As attached Figure 3 As shown, in one embodiment, the oil inlet chamber 1 is connected to the first connecting channel 4 via the oil outlet 102, and the oil outlet diameter 102a of the oil outlet 102 is smaller than the first connecting channel diameter 4a of the first connecting channel 4.

[0055] At this time, attached Figure 3 As shown, the damping valve core assembly 5 includes a valve core component 501 and a damping valve core elastic component 502. The valve core component 501 is a block-shaped structure adapted to the oil inlet diameter 102a; more precisely, the valve core component 501 is a cylindrical structure with a lateral width greater than the oil inlet diameter 102a, allowing the valve core component 501 to be positioned as shown in the attached figure. Figure 1 The blockage shown is applied to the oil inlet 102 to block the connection between the oil inlet 102 and the flow channel x. Simultaneously, the valve core 501 is slidably mounted in the first connecting channel 4, and a flow channel x for lubricating oil is formed between the side wall of the valve core 501 and the corresponding inner wall of the first connecting channel 4. Thus, when the valve core 501 is pushed upwards, lubricating oil can enter the first connecting channel 4 from the oil inlet 102 along the flow channel x and then flow into the oil storage chamber 2. The damping valve core elastic element 502 is preferably a spring structure that does not easily obstruct the flow of lubricating oil. It is installed between the upper wall of the first connecting channel 4 and the valve core 501, and its elastic force drives the valve core 501 to press against the oil inlet 102, thereby blocking the connection between the oil inlet 102 and the flow channel x.

[0056] Furthermore, in this embodiment, the valve core 501 is preferably an accessory. Figure 4 and attached Figure 5 The structure shown is a cylindrical structure with an outer diameter adapted to the diameter 4a of the first connecting channel, and has several vertically penetrating grooves on its side walls, which form the aforementioned flow channel x. The bottom of the cylindrical structure has a tapered portion that can be fitted into the oil inlet 102 to block it.

[0057] As attached Figure 6 As shown, in another form, the damping valve core assembly 5 includes a valve core 501, a damping valve core elastic element 502, and a mounting support 503. Unlike the first form described above, the mounting support 503 is fixedly installed in the first connecting channel 4, forming a type oil inlet 102 structure. Specifically, the mounting support 503 is an annular column structure with a protrusion on its lower inner wall. The lower end of the valve core 501 rests on this protrusion to block the connection between the oil inlet chamber 1 and the flow channel x (which is formed between the inner wall of the annular column and the side wall of the valve core 501).

[0058] Of course, in both forms, the damping valve core assembly 5 is under the pressure difference between the oil inlet chamber 1 and the oil storage chamber 2 to open / close the connecting passage between the oil inlet chamber 1 and the oil inlet port 201.

[0059] Specifically, as shown in the attached Figure 1 , when the lubricating oil is not transported, the valve core piece 501 is pressed against the oil inlet port 102 (or the mounting support 503) under the elastic force of the damping valve core elastic piece 502, blocking the connecting passage between the oil inlet chamber 1 and the flow passage x. When the lubricating oil is injected from the oil inlet port 101 into the oil inlet chamber 1, especially after the oil inlet chamber 1 is filled, as shown in the attached Figure 7 , as the injection pressure continues to rise, the valve core piece 501 is pushed up, and the damping valve core elastic piece 502 is compressed to maintain the energy storage state, at this time, the oil inlet port 101 is connected through the flow passage x and the first connecting passage 4, and the lubricating oil can be injected from the flow passage x, the first connecting passage 4, and the oil inlet port 201 into the oil storage chamber 2, of course, at this time, the oil outlet port 202 of the oil storage chamber 2 is in a closed state, and the control of its opening / closing will be described below in conjunction with the blocking piece structure.

[0060] As the lubricating oil continues to be injected into the oil storage chamber 2 until it is filled, as shown in the attached Figure 7 and the attached Figure 8 , the oil inlet chamber 1 and the oil storage chamber 2 are connected and filled with lubricating oil, at this time, the hydraulic pressure on both sides of the valve core piece 501 is the same, under the elastic force of the damping valve core elastic piece 502 and the gravity of the valve core piece 501 installed as shown in the attached Figure 8 , the valve core piece 501 is driven to move downward until the lower end of the valve core piece 501 is pressed against the oil inlet port 102, blocking the connecting passage between the oil inlet port 102 and the flow passage x. At this time, the lubricating oil is quantitatively stored in the oil storage chamber 2.

[0061] At this time, the lubricating oil quantitatively stored in the oil storage chamber 2 needs to be discharged through the blocking piece. Of course, the blocking piece also has at least two forms:

[0062] In one form, the blocking piece can be a stop valve placed in the connecting passage between the oil outlet port 202 and the oil outlet pipe 3. By controlling the opening of the stop valve, the oil outlet port 202 and the oil outlet pipe 3 are connected, and the lubricating oil in the oil storage chamber 2 can be discharged along the oil outlet port 202 and the oil outlet pipe 3 as shown in the attached Figure 9 , and by controlling the closing of the stop valve, the discharge can be stopped. The time between the opening and closing of the control stop valve can control the discharge amount to achieve quantitative discharge.

[0063] In another form, as shown in the attached Figure 3As shown, the quantitative lubrication structure further comprises a second connecting channel 6, which constitutes a communication structure between the oil outlet port 202 and the oil inlet cavity 1, and the oil outlet pipe 3 is connected to one end of the second connecting channel 6 close to the oil outlet port 202. The blocking member is a blocking valve core 7, which is slidably arranged in the second connecting channel 6 and is located in the connecting passage between the oil outlet port 202 and the oil inlet cavity 1. Under the action of the pressure difference between the oil inlet cavity 1 and the oil storage cavity 2, the blocking valve core 7 opens / closes the connecting passage between the oil outlet port 202 and the oil outlet pipe 3. The specific control mode and the preferred connecting structure of the blocking valve core 7 will be described in Embodiment 2 in combination with a multi-point lubrication environment, which will not be described in detail here.

[0064] When the lubricating oil is discharged, the next time of discharge can be carried out by injecting the lubricating oil from the oil inlet port 101 of the oil inlet cavity 1 again.

[0065] As shown in the accompanying drawings, Figure 1 The oil storage cavity 2 is further connected with an energy storage cavity 11, and the energy storage cavity 11 is provided with a pushing device for applying pressure to the lubricating oil contained in the energy storage cavity 11 to push the lubricating oil in the oil storage cavity 2 out, thereby increasing the output power of the lubricating oil and improving the output efficiency.

[0066] The pushing device can be a push rod motor or a hydraulic push rod device, which is driven at the same time as the blocking member controls the communication between the oil outlet port 202 and the oil outlet pipe 3, thereby pushing the lubricating oil out. However, this requires additional control structure to be set, which is very cumbersome.

[0067] In this embodiment, as shown in the accompanying drawings, Figure 1 The pushing device comprises a piston member 12 and an energy storage elastic member 13. The piston member 12 is a sliding block structure arranged in the energy storage cavity 11 and adapted to the inner diameter of the energy storage cavity 11 and slides in the pushing direction. The energy storage elastic member 13 is preferably a spring, which is located on the side of the piston member 12 away from the oil storage cavity 2 and is arranged between the piston member 12 and the inner wall of the energy storage cavity 11, and the energy storage elastic member 13 constitutes the elastic connection structure of the piston member 12 in the sliding direction. As shown in the accompanying drawings, Figure 7 and the accompanying drawings, Figure 8 When the lubricating oil is injected into the oil storage cavity 2 and the energy storage cavity 11, the piston member 12 will be pushed up and the energy storage elastic member 13 will be compressed to maintain the energy storage state. Figure 9 As shown in the accompanying drawings,

[0068] Further, as shown in the accompanying drawings, Figure 3As shown, in this embodiment, a first bolt 8 is screwed into the first connecting channel 4. The lower end face of the first bolt 8 forms the upper wall of the first connecting channel 4, and the direction of screwing the first bolt 8 into and out of the first connecting channel 4 is consistent with the elastic movement direction of the valve core 501. One end of the damping valve core elastic element 502 is connected to the first bolt 8, and the other end is connected to the valve core 501, so that the elastic deformation state of the damping valve core elastic element 502 can be changed by changing the screwing depth of the first bolt 8 into the first connecting channel 4. That is, changing the state of elastic deformation of the damping valve core elastic element 502 as shown in the attached figure. Figure 1 In the initial state shown, the magnitude of the deformation of the damping valve core elastic element 502 changes the magnitude of the elastic force applied to the valve core element 501, so that the required oil pressure to push the valve core element 501 can be adjusted to adapt to different oil pressure environments.

[0069] As attached Figure 3 As shown, a third bolt 14 is screwed into the energy storage chamber 11. One end of the energy storage elastic member 13 is connected to the third bolt 14, and the other end is connected to the piston member 12. The installation position of the energy storage elastic member 13 can be changed by changing the screwing depth of the third bolt 14 in the energy storage chamber 11. That is, as the third bolt 14 moves upward, the energy storage elastic member 13 and the piston member 12 can also move upward, which is equivalent to leaving more space for accommodating lubricating oil at the lower end of the energy storage chamber 11. Thus, the total amount of lubricating oil placed in the oil storage chamber 2 and the energy storage chamber 11 can be adjusted as needed.

[0070] Example 2: A multi-channel lubrication device, see attached diagram. Figure 2 As shown, it includes an oil inlet pipe 15 and several of the aforementioned metering lubrication structures. One end of the oil inlet pipe 15 is connected to an oil delivery device, such as an oil pump, and the other end is equipped with a shut-off valve 16 or is closed. Between the two ends, several oil delivery pipes 17 are connected at intervals on the oil inlet pipe 15, and each oil delivery pipe 17 is connected to the oil inlet port 101 of the oil inlet chamber 1 in a metering lubrication structure.

[0071] At this point, when lubricating oil is input, only the input time needs to be controlled to ensure that the oil storage chamber 2 of each metered lubrication structure is filled with a fixed amount of lubricating oil. When lubricating oil is output, in one configuration, the blocking element of the shut-off valve structure in each metered lubrication structure can be simultaneously opened to allow the lubricating oil in the oil storage chamber 2 of each structure to be discharged simultaneously. Then, the blocking element can be simultaneously closed to control the amount of lubricating oil discharged from each metered lubrication structure. However, simultaneously controlling several shut-off valves requires high precision and is prone to errors.

[0072] In this embodiment, the blocking element with the above-described blocking valve core 7 structure is preferably used.

[0073] For details, see attached. Figure 7As shown, when lubricating oil is injected into the oil inlet chamber 1, some of the lubricating oil will first flow downwards and enter the second connecting channel 6; some of the lubricating oil will flow upwards and push the valve core 501 to enter the oil storage chamber 2. After the lubricating oil is injected into the second connecting channel 6, it will push the blocking valve core 7 to move to the right.

[0074] As attached Figure 3 As shown, in this embodiment, the diameter 202a of the oil outlet port 202 is smaller than the diameter 6a of the second connecting channel 6. Thus, when the lubricating oil pushes the shut-off valve core 7 to the right, it presses against the oil outlet port 202, blocking the connection between the oil outlet pipe 3 and the oil outlet port 202. Alternatively, besides limiting the diameter, a protruding structure can be used in the second connecting channel 6 to restrict the movement of the shut-off valve core 7. By placing the protruding structure on the right side of the oil outlet pipe 3, the shut-off valve core 7 can block the oil outlet pipe 3 when it moves to the right and presses against the protrusion, thus blocking the connection between the oil outlet pipe 3 and the oil outlet port 202.

[0075] As attached Figure 8 As shown, when the oil storage chamber 2 is filled with lubricating oil, the hydraulic pressure on the left and right sides of the blocking valve core 7 is the same, and the blocking valve core 7 remains in a blocked state against the oil outlet pipe 3.

[0076] At this time, as attached Figure 9 As shown, the control oil delivery device stops oil delivery, and the shut-off valve 16 on the oil inlet pipe 15 is opened to connect the oil inlet pipe 15 to the external low-pressure environment, or the oil inlet end of the oil inlet pipe 15 is connected to the external low-pressure environment, which reduces the hydraulic pressure on the side of the oil inlet chamber 1. At this time, under the action of the oil pressure in the oil storage chamber 2, the blocking valve core 7 will be pushed to the left to connect the oil outlet pipe 3 and the oil outlet port 202, and the lubricating oil in the oil storage chamber 2 can be discharged.

[0077] In this way, by changing the oil pressure in the oil inlet pipe 15, the blocking valve core 7 can be moved simultaneously to discharge the lubricating oil. This allows for more convenient control of the simultaneous discharge of lubricating oil from the oil storage chambers 2 of each quantitative lubrication structure, thereby achieving more uniform lubrication.

[0078] As attached Figure 3 As shown, a blocking valve core elastic element 9 is provided between the left inner wall of the second connecting channel 6 and the blocking valve core 7. Preferably, it is a spring that does not easily obstruct the input of lubricating oil. Its elastic force drives the blocking valve core 7 to press against the oil outlet port 202, thereby blocking the connection between the oil outlet pipe 3 and the oil outlet port 202. More precisely, as shown in the attached diagram... Figure 1The initial state shown can better block the connecting passage between the oil outlet pipe 3 and the oil outlet port 202. Moreover, the blocking valve core elastic member 9 can avoid the lubricating oil in the oil storage cavity 2 from being completely discharged. When the internal hydraulic pressure of the lubricating oil discharged from the oil storage cavity 2 is less than the oil pressure required for compressing the blocking valve core elastic member 9, the blocking valve core 7 will be pressed against the oil outlet port 202 under the elastic force of the blocking valve core elastic member 9 to block the connecting passage between the oil outlet pipe 3 and the oil outlet port 202.

[0079] Meanwhile, as shown in the accompanying drawings Figure 3 The second bolt 10 is screwed in the second connecting passage 6, the right end face of the second bolt 10 constitutes the left inner wall of the second connecting passage 6, and the direction in which the second bolt 10 is screwed into or out of the second connecting passage 6 is consistent with the sliding direction of the blocking valve core 7 in the second connecting passage 6. One end of the blocking valve core elastic member 9 is connected to the second bolt 10, and the other end is connected to the blocking valve core 7, so as to change the elastic deformation state of the blocking valve core elastic member 9 by changing the screwing depth of the second bolt 10 in the second connecting passage 6. That is, the amount of deformation of the blocking valve core elastic member 9 in the initial state shown in the accompanying drawings is changed, and the elastic force applied to the blocking valve core 7 is changed, so that the required oil pressure for pushing the blocking valve core 7 can be adjusted to change the amount of oil discharged from the oil storage cavity 2. Figure 1

[0080] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.​

Claims

1. A constant lubrication structure characterized by, The application relates to a quantitative lubricating structure of a lubricating oil tank. The quantitative lubricating structure comprises an oil inlet cavity (1) provided with an oil inlet port (101) for oil inlet; an oil storage cavity (2) comprising interval arranged oil inlet ports (201) and oil outlet ports (202), and the oil outlet ports (202) are connected with oil outlet pipes (3); a first connecting channel (4) which constitutes a communication structure between the oil inlet ports (201) and the oil inlet cavity (1); a damping valve core assembly (5) which is arranged in the first connecting channel (4) and opens / closes the connecting channel between the oil inlet cavity (1) and the oil inlet ports (201) under the pressure difference between the oil inlet cavity (1) and the oil storage cavity (2); a blocking member which is arranged in the connecting channel between the oil outlet ports (202) and the oil outlet pipes (3) and constitutes a control structure for opening / closing the connecting channel; and a second connecting channel (6) which constitutes a communication structure between the oil outlet ports (202) and the oil inlet cavity (1), and the oil outlet pipes (3) are connected to one end of the second connecting channel (6) close to the oil outlet ports (202). The blocking member is a blocking valve core (7) which is slidably arranged in the second connecting channel (6) and arranged in the connecting channel between the oil outlet ports (202) and the oil inlet cavity (1), and the blocking valve core (7) opens / closes the connecting channel between the oil outlet ports (202) and the oil outlet pipes (3) under the pressure difference between the oil inlet cavity (1) and the oil storage cavity (2). The oil storage cavity (2) is further connected with an energy storage cavity (11), and the energy storage cavity (11) is provided with a pushing device for pressing and discharging lubricating oil contained in the energy storage cavity (11) to press and discharge the lubricating oil in the oil storage cavity (2). The oil inlet cavity (1) is connected with the first connecting channel (4) through an oil outlet port (102), and the oil outlet port diameter (102a) of the oil outlet port (102) is smaller than the first connecting channel diameter (4a) of the first connecting channel (4). The damping valve core assembly (5) comprises: A valve core member (501) which is arranged in the oil outlet port diameter (102a) and slidably arranged in the first connecting channel (4), and a flow channel (x) is formed between the side wall of the valve core member (501) and the inner wall of the first connecting channel (4) in opposite positions for the lubricating oil to pass through; A damping valve core elastic member (502) which is arranged between the inner wall of the first connecting channel (4) and the valve core member (501) and elastically drives the valve core member (501) to press on the oil outlet port (102) to block the connecting channel between the oil outlet port (102) and the flow channel (x). ​ 2. The lubrication arrangement of claim 1, wherein: ​ ​ ​ ​ 3. The lubrication arrangement of claim 2, wherein: The first connecting channel (4) is screwed with a first bolt (8), and one end of the damping valve core elastic member (502) is connected to the first bolt (8), and the other end is connected to the valve core member (501), so as to change the elastic deformation state of the damping valve core elastic member (502) by changing the screwing depth of the first bolt (8) in the first connecting channel (4).

4. The lubrication arrangement of claim 1, wherein: The oil outlet port diameter (202a) of the oil outlet port (202) is smaller than the second connecting channel diameter (6a) of the second connecting channel (6); And the second connecting channel (6) is provided with a blocking valve core elastic member (9) between the inner wall and the blocking valve core (7), which drives the blocking valve core (7) to press on the oil outlet port (202) to block the connecting passage between the oil outlet pipe (3) and the oil outlet port (202).

5. The lubrication arrangement of claim 4, wherein: The second connecting channel (6) is screwed with a second bolt (10), and one end of the blocking valve core elastic member (9) is connected to the second bolt (10), and the other end is connected to the blocking valve core (7), so as to change the elastic deformation state of the blocking valve core elastic member (9) by changing the screwing depth of the second bolt (10) in the second connecting channel (6).

6. The lubrication arrangement of claim 1, wherein: The pushing device comprises: A piston member (12) is slidingly installed in the energy storage cavity (11) in accordance with the pushing direction; An energy storage elastic member (13) is located on the side of the piston member (12) away from the oil storage cavity (2), and is arranged between the piston member (12) and the inner wall of the energy storage cavity (11), and the energy storage elastic member (13) constitutes the connecting structure of the elastic movement of the piston member (12) in the sliding direction.

7. The lubrication arrangement of claim 6, wherein: The third bolt (14) is screwed in the energy storage cavity (11), one end of the energy storage elastic member (13) is connected to the third bolt (14), and the other end is connected to the piston member (12), so as to change the installation position of the energy storage elastic member (13) by changing the screwing depth of the third bolt (14) in the energy storage cavity (11).

8. A multi-pass lubrication device characterized by: The oil inlet pipeline (15) is connected to the oil conveying device at one end, and is provided with a stop valve (16) or is closed at the other end, and between the two ends, a plurality of oil conveying pipes (17) are connected to the oil inlet pipeline (15) at intervals, and each oil conveying pipe (17) is connected to the oil inlet port (101) of the oil inlet cavity (1) of the quantitative lubricating structure. The oil inlet pipeline (15) is connected to the oil conveying device at one end, and is provided with a stop valve (16) or is closed at the other end, and between the two ends, a plurality of oil conveying pipes (17) are connected to the oil inlet pipeline (15) at intervals, and each oil conveying pipe (17) is connected to the oil inlet port (101) of the oil inlet cavity (1) of the quantitative lubricating structure.

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