Oil supply device and scroll compressor including the same

Abstract

The present invention provides a lubricating oil supply device and a scroll compressor including the same, which relates to the technical field of compressors and solves the technical problem that the compressor is in a state of insufficient oil or dry grinding during low-frequency startup, which affects the service life. The lubricating oil supply device includes an oil delivery component; a driving component, which is connected to the oil delivery component through a first transmission component; a second transmission component, which is connected to the equipment to be lubricated; a synchronous adjustment component, which is arranged between the first transmission component and the second transmission component and can control the connection or separation of the first transmission component and the second transmission component to achieve synchronous operation or independent operation of the oil delivery component and the equipment to be lubricated; and a scroll compressor including the above-mentioned lubricating oil supply device. The present invention adopts a split crankshaft design. Through the synchronous adjustment component, when the oil pump is started at low frequency, the pump body rotates and the pump body is stationary. After the oil supply in the pump body is sufficient, the oil pump and the pump body operate normally in conjunction with each other, reducing the risk of oil shortage or dry grinding of the pump body and increasing the overall reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a lubricating oil supply device and a scroll compressor comprising the same. Background Art

[0002] The high-pressure chamber scroll compressor achieves gas compression by reducing the volume through the relative movement of the pump body. During operation, there are several friction pairs, and its lubrication method is mostly oil film lubrication, especially the pump body part, which requires continuous oil supply and lubrication during operation to ensure its life.

[0003] Usually, the oil supply method for high-pressure cavity scroll compressors is often an oil pump, which leads the oil from the bottom oil pool to the pump body. The oil pump and the compressor pump body are coaxial structures. When the main shaft rotates, it drives the compressor pump body and the oil pump to rotate at the same time. The compressor speed and the oil pump speed are the same, so the oil discharge volume of the oil pump is positively correlated with the compressor speed; but since the compressor pump body is often located at the upper part of the compressor, when the compressor is started at low frequency, the oil discharge volume of the oil pump is small, and because of the long pumping distance, it takes a long time for the lubricating oil to be supplied to the compressor pump body above; during this period, the compressor pump body is in a state of low oil operation or even dry grinding, which seriously affects the service life of the compressor. Summary of the Invention

[0004] The object of the present invention is to provide an oil supply device and a scroll compressor comprising the same, so as to solve the technical problem in the prior art that the compressor is in an oil-deficient or dry-grinding state during low-frequency startup, thereby affecting its service life.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The present invention provides a lubricating oil supply device, comprising:

[0007] Oil delivery assembly, used to deliver lubricating oil to the equipment to be lubricated;

[0008] A driving assembly, connected to the oil delivery assembly through a first transmission member, capable of driving the oil delivery assembly to operate;

[0009] The second transmission member is connected to the equipment to be lubricated and can drive the equipment to be lubricated to operate under the action of an external power source;

[0010] The synchronous adjustment component is arranged between the first transmission member and the second transmission member, and can control the connection or separation of the first transmission member and the second transmission member to achieve synchronous operation or independent operation of the oil delivery component and the equipment to be lubricated.

[0011] As a further improvement of the present invention, when the first transmission member rotates forward or reverse, the synchronous adjustment component is in a synchronous state, which can realize the transmission connection between the first transmission member and the second transmission member; when the first transmission member rotates reverse or forward, the synchronous adjustment component is in a separated state, which can realize the separation of the first transmission member and the second transmission member from each other.

[0012] As a further improvement of the present invention, the synchronous adjustment component includes an inner ratchet and an outer ratchet, the inner ratchet is rotatably arranged on the first transmission member, and the outer ratchet is arranged on the second transmission member, and also includes a first limiting structure and a second limiting structure arranged on the first transmission member and the outer ratchet for limiting and positioning the inner ratchet; when the synchronous adjustment component is in a synchronous state, the inner ratchet and the outer ratchet are limitedly connected through the second limiting structure; when the synchronous adjustment component is in a separated state, the inner ratchet and the first transmission member are limitedly connected through the first limiting structure.

[0013] As a further improvement of the present invention, the inner ratchet is provided with a crescent-shaped ratchet extending outward, and the first limiting structure includes a ratchet base for supporting the inner ratchet and a limiting boss provided on the ratchet base and capable of abutting against the ratchet; the outer ratchet is an annular structure, which is sleeved on the outside of the ratchet base; the second limiting structure is a limiting step provided on the inner ring of the outer ratchet and capable of abutting against the ratchet.

[0014] As a further improvement of the present invention, the inner ratchet is provided with crescent-shaped ratchet teeth extending outward, and the first limiting structure includes stop pins arranged on opposite sides of the inner ratchet; the outer ratchet is an annular structure, which is sleeved on the outside of the inner ratchet; the second limiting structure is a limiting step arranged on the inner ring of the outer ratchet and can abut against the ratchet teeth.

[0015] As a further improvement of the present invention, the inner ratchet is provided with a crescent-shaped ratchet extending outward, the first limiting structure includes an axis key arranged beside the inner ratchet shaft, and a limiting stop window is provided at the corresponding position of the inner ratchet; the outer ratchet is an annular structure, which is sleeved on the outside of the inner ratchet; the second limiting structure is a limiting step arranged on the inner ring of the outer ratchet and can abut against the ratchet.

[0016] As a further improvement of the present invention, it further includes end bearings arranged on the top of the first transmission member and the bottom of the second transmission member.

[0017] As a further improvement of the present invention, an eccentric portion is further provided between the outer ratchet and the second transmission member.

[0018] As a further improvement of the present invention, the oil delivery assembly includes an internal gear pump, an oil delivery channel arranged axially along the first transmission member and the second transmission member, and a first through hole and a second through hole arranged on the ratchet base and the inner ratchet and connected to the oil delivery channel respectively; the second through hole is a waist-shaped hole.

[0019] As a further improvement of the present invention, the first transmission member is a lower crankshaft; and the second transmission member is an upper crankshaft arranged concentrically with the lower crankshaft.

[0020] The present invention provides a scroll compressor, comprising the lubricating oil supply device.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The lubricating oil supply device provided by the present invention adopts a split crankshaft structure, and by setting a synchronous adjustment component, the rotation of the oil pump can be isolated from the rotation of the compressor pump body. During low-frequency starting, the main shaft rotates in the opposite direction (clockwise). At this time, the oil pump and the compressor pump body are separated from each other through the synchronous adjustment component. The oil pump moves but the compressor pump body is stationary. The oil pump supplies refrigeration oil to the pump body. After the oil is fully supplied, the main shaft stops, reverses, and rotates forward (counterclockwise). The oil pump and the compressor pump body are linked through the synchronous adjustment component. The oil pump and the pump body operate normally, and the compressor operates normally. This can effectively avoid oil shortage or dry grinding of the compressor during low-frequency starting, thereby increasing the reliability of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 is a cross-sectional view of a scroll compressor of the present invention;

[0025] Figure 2 It is a partial cross-sectional view of the crankshaft split portion of the scroll compressor of the present invention;

[0026] Figure 3 The explosion of the crankshaft in the scroll compressor of the present invention Figure 1 ;

[0027] Figure 4 The explosion of the crankshaft in the scroll compressor of the present invention Figure 2 ;

[0028] Figure 5Schematic diagram of the position of the synchronous adjustment component during forward rotation of the scroll compressor according to the first embodiment of the present invention;

[0029] Figure 6 Schematic diagram of the position of the synchronous adjustment component during reverse rotation of the scroll compressor of the first embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the position of the synchronous adjustment component during forward rotation of the scroll compressor according to the second embodiment of the present invention;

[0031] Figure 8 Schematic diagram of the position of the synchronous adjustment component during reverse rotation of the scroll compressor of the second embodiment of the present invention;

[0032] Figure 9 Schematic diagram of the position of the synchronous adjustment component during forward rotation of the scroll compressor according to the third embodiment of the present invention;

[0033] Figure 10 Schematic diagram of the position of the synchronous adjustment component during reverse rotation of the scroll compressor according to the third embodiment of the present invention;

[0034] Figure 11 yes Figure 9 Middle A is a partial enlarged view;

[0035] Figure 12 This is a logic diagram of the scroll compressor startup control of the present invention.

[0036] In the figure, 1 is the lower cover; 2 is the gasket; 3 is the internal gear pump; 4 is the lower bracket; 5 is the support ring; 6 is the motor; 7 is the upper bracket; 8 is the intake pipe; 9 is the static scroll; 10 is the movable scroll; 11 is the cross ring; 12 is the balance block; 13 is the crankshaft; 13-1 is the upper crankshaft; 13-2 is the lower crankshaft; 14 is the ratchet base; 15 is the inner ratchet; 16 is the end bearing; 17 is the eccentric part; 18 is the outer ratchet; 19 is the stop pin; 20 is the shaft key; 21 is the limit stop window. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0038] like Figure 1 and Figure 2 As shown, the present invention provides a lubricating oil supply device, comprising

[0039] The oil delivery assembly is used to deliver lubricating oil to the equipment to be lubricated. The following is a specific description using the compressor pump body as an example. The oil delivery assembly pumps the lubricating oil from the oil pool at the bottom of the compressor into the compressor pump body located above.

[0040] The drive assembly is connected to the oil delivery assembly via the first transmission member, and can drive the oil delivery assembly to operate. It should be noted that the drive assembly is a motor connected to the first transmission member. When the motor operates, it can drive the first transmission member to operate accordingly. Since the oil delivery assembly is connected to the first transmission member, the oil delivery assembly operates and can deliver lubricating oil.

[0041] The second transmission member is connected to the equipment to be lubricated and can drive the equipment to be lubricated to operate under the action of an external power source; specifically, the second transmission member extends to the upper part of the compressor and is connected to the compressor pump body;

[0042] The synchronous adjustment component is arranged between the first transmission member and the second transmission member, and can control the connection or separation of the first transmission member and the second transmission member to achieve synchronous operation or independent operation of the oil delivery component and the equipment to be lubricated.

[0043] It should be noted that the first transmission member and the second transmission member in the present invention are split structures of the crankshaft 13, that is, the crankshaft is divided into two upper and lower sections, the lower section is the first transmission member, that is, the lower crankshaft 13-2, and the upper section is the second transmission member, that is, the upper crankshaft 13-1; the upper and lower crankshafts are concentrically arranged;

[0044] When the motor drives the first transmission member to rotate forward or reverse (counterclockwise or clockwise), the synchronous adjustment component is in a synchronous state, which can realize the transmission connection between the first transmission member and the second transmission member. That is, at this time, the lower crankshaft 13-2 and the upper crankshaft 13-1 are connected together and can be driven to rotate by the motor at the same time, which is the operating state of a general scroll compressor; in the present invention, the forward rotation is as follows Figure 5 、 Figure 7 and Figure 9 The counterclockwise rotation is shown, and the reverse rotation is as shown Figure 6 、 Figure 8 and Figure 10 The first transmission member rotates clockwise as shown; when the first transmission member rotates in the reverse or forward direction, that is, when it rotates in the opposite direction to the previous synchronous rotation state, the synchronous adjustment assembly is in a disengaged state, which can realize the separation of the first transmission member and the second transmission member. When the upper and lower crankshafts are separated from each other, the lower crankshaft is driven by the motor to rotate to realize the operation of the oil pump to deliver lubricating oil, while the compressor pump body connected to the upper crankshaft remains stationary and does not rotate with it. This can avoid the problem of the compressor pump body running with it when the lubricating oil does not enter the compressor pump body due to dry grinding or lack of oil when the compressor is started at low frequency, resulting in a shortened life.

[0045] like Figure 3 and Figure 4 As shown, as an optional embodiment of the present invention, the synchronous adjustment component includes an inner ratchet 15 and an outer ratchet 18, the inner ratchet 15 is rotatably arranged on the lower crankshaft 13-2, and the outer ratchet 18 is arranged on the upper crankshaft 13-1, and also includes a first limiting structure and a second limiting structure arranged on the lower crankshaft 13-2 and the outer ratchet 18 for limiting and positioning the inner ratchet 15; when the synchronous adjustment component is in a synchronous state, the inner ratchet 15 and the outer ratchet 18 are connected in a limiting manner through the second limiting structure; when the synchronous adjustment component is in a separated state, the inner ratchet 15 and the lower crankshaft 13-2 are connected in a limiting manner through the first limiting structure. It should be noted that a rotating shaft is provided on the top of the lower crankshaft 13-2, and the inner ratchet 15 is sleeved on the rotating shaft and can rotate relative to the rotating shaft, as shown in FIG. Figure 5 As shown, when the lower crankshaft 13-2 rotates counterclockwise, the inner ratchet 15 tends to move in the opposite direction, and is driven by the lower crankshaft 13-2 to rotate and is thrown outward under the action of inertia. After being thrown out, it will follow the lower crankshaft 13-2 to rotate in the same direction. Since it will abut against the second limiting structure when being thrown out, the second limiting structure realizes the connection between the inner ratchet 15 and the outer ratchet 18 and the positioning and limiting of the rotation angle, preventing the inner ratchet 15 from rotating relative to the outer ratchet 18, causing the rotation angle to be too large. The second limiting structure not only connects the upper and lower crankshafts together to realize power transmission, so that the oil pump and the compressor pump body rotate synchronously, but also ensures that the upper and lower crankshafts can be stably connected together and will not be disengaged; as shown Figure 6 As shown, when the lower crankshaft 13-2 rotates clockwise, the inner ratchet 15 tends to move in the opposite direction, and is driven to rotate by the lower crankshaft 13-2 and is thrown inward under the action of inertia. After being thrown inward, it will rotate in the same direction as the lower crankshaft 13-2 due to the drive of the lower crankshaft 13-2. When being thrown inward, it will abut against the first limiting structure, and the connection between the inner ratchet 15 and the lower crankshaft 13-2 and the positioning and limiting of the inner ratchet 15 are achieved through the first limiting structure.

[0046] like Figure 5 and Figure 6As shown, as an optional embodiment of the present invention, the inner ratchet 15 is provided with a crescent-shaped ratchet extending outward, and the first limiting structure includes a ratchet base 14 for supporting the inner ratchet 15 and a limiting boss arranged on the ratchet base 14 and capable of abutting the ratchet teeth; further, the ratchet base 14 is provided with a boss whose shape is adapted to the shape of the inner ratchet 15, and the rotating shaft for the inner ratchet 15 is passed through the ratchet base 14, and the rotating shaft is located at an eccentric position of the ratchet base 14, and a limiting boss adapted to the shape of the crescent-shaped ratchet teeth is provided on the side opposite to the rotating shaft. When the inner ratchet 15 is thrown outward under the action of inertia, the ratchet teeth and the curved arc structure of the main body of the inner ratchet 15 are just stuck at the limiting boss; the outer ratchet 18 is an annular structure, which is sleeved on the outside of the ratchet base 14; the second limiting structure is a limiting step arranged on the inner ring of the outer ratchet 18 and capable of abutting the ratchet teeth. When the inner ratchet 15 is thrown inwards under the action of inertia, the end of the ratchet teeth thereof just abuts against the limiting step.

[0047] like Figure 7 and Figure 8 As shown, as another optional embodiment of the present invention, the inner ratchet 15 is provided with a crescent-shaped ratchet extending outward, and the first limiting structure includes a stop pin 19 arranged on opposite sides of the inner ratchet 15; the positions of the two stop pins 19 need to be obtained by calculation based on the specifications and shape of the inner ratchet 15, and the setting positions of the two stop pins 19 need to ensure that when the inner ratchet 15 is thrown inward, the inner ratchet 15 can be connected to the lower crankshaft 13-2 and the rotation angle is limited by the stop pin 19 to prevent the inner ratchet 15 from rotating at an excessively large angle; the outer ratchet 18 is an annular structure, which is sleeved on the outside of the inner ratchet 15; the second limiting structure is a limiting step arranged on the inner ring of the outer ratchet 18 and can abut against the ratchet teeth.

[0048] like Figures 9-11 As shown, as a third optional embodiment of the present invention, the inner ratchet 15 is provided with a crescent-shaped ratchet extending outward, and the first limiting structure includes an axial key 20 arranged beside the rotating shaft of the inner ratchet 15. The axial key 20 can be arranged integrally with the rotating shaft or independently, and a limiting window 21 is provided at the corresponding position of the inner ratchet 15; the limiting window 21 is a waist-shaped hole, or an arc-shaped hole. When the inner ratchet 15 rotates around its rotating shaft, the axial key 20 can move along the limiting window 21, and the extreme position of the left and right swing of the inner ratchet 15 is positioned and limited by the two ends of the limiting window 21; the outer ratchet 18 is an annular structure, which is sleeved on the outside of the inner ratchet 15; the second limiting structure is a limiting step arranged on the inner ring of the outer ratchet 18 and can abut against the ratchet teeth.

[0049] Specifically, in each embodiment of the present invention, the ratchet base 14 is a circular structure; the inner ratchet 15 includes a circular base, a semicircular convex portion extending outward along the base, and a crescent-shaped ratchet tooth extending outward along the base. The ratchet teeth and the convex portion are arranged closely together, both located on one side semicircle of the base, the rotating shaft is located on the base, and the second through hole is located at the convex portion.

[0050] It also includes an end bearing 16 arranged at the top of the lower crankshaft 13-2 and the bottom of the upper crankshaft 13-1.

[0051] An eccentric portion 17 is further provided between the outer ratchet 18 and the upper crankshaft 13 - 1 .

[0052] The oil delivery assembly includes an internal gear pump 3, an oil delivery channel arranged axially along the upper crankshaft 13-1 and the lower crankshaft 1-2, and a first through hole and a second through hole provided on the ratchet base 14 and the inner ratchet 15, respectively communicating with the oil delivery channel. The second through hole is a waist-shaped hole. This waist-shaped hole is designed to ensure that the entire oil delivery channel remains unobstructed during the rotation of the inner ratchet 15, thereby ensuring the continuous delivery of lubricating oil. The oil pump is an internal gear pump 3, and normal oil supply can be achieved in both forward and reverse rotations by controlling the position and size of the oil inlet hole. It should be noted that this internal gear pump 3 is a prior art product.

[0053] The present invention provides a scroll compressor comprising the above-mentioned lubricating oil supply device.

[0054] like Figure 1 and Figure 2 As shown, further, the scroll compressor includes a shell and a lower cover 1 arranged at the bottom of the shell, the lower bracket 4 is fixed to the bottom of the shell by a support ring 5, the lower crankshaft 13-2 is rotatably set on the lower bracket 4 through a bearing, the internal gear pump 3 is connected to the lower end of the lower crankshaft 13-2, and an oil pool is enclosed between the lower bracket 4, the support ring 5, the lower cover 1 and the shell, and the internal gear pump 3 is located in the oil pool; a gasket 2 is provided at the bottom of the lower cover 1. The motor 6 is fixed in the middle of the housing and is connected to the lower crankshaft 13-2 in transmission. The balancing block 12 is eccentrically arranged on the lower crankshaft 13-2. The upper end of the lower crankshaft 13-2 is fixed to the top of the housing through the upper bracket 7. The lower crankshaft 13-2 is rotatably connected to the upper bracket 7 through a bearing; the fixed scroll 9 is fixed to the top of the housing and connected to the upper bracket 7; the movable scroll 10 is connected to the top of the upper crankshaft 13-1 and is located inside the fixed scroll 9; a cross slip ring 11 is provided between the movable scroll 10 and the upper bracket 7; an air inlet pipe 8 is provided at the air inlet of the fixed scroll 9.

[0055] The present invention adopts a split crankshaft design, which can isolate the operation of the oil pump from the operation of the pump body. Through the crankshaft forward and reverse logic, the crankshaft rotates in the opposite direction during low-frequency starting, the oil pump rotates to supply oil, and the pump body is stationary. After the pump body is fully supplied with oil, the crankshaft rotates forward, and the oil pump and pump body operate normally, reducing the risk of oil shortage or dry grinding of the pump body and increasing overall reliability.

[0056] The specific control logic of the scroll compressor of the present invention is as follows: Figure 12 As shown, when the compressor starts, the controller reverses the compressor, specifically, controls the motor 6 to rotate in the opposite direction. At this time, the lower crankshaft 13-2 operates normally at a low frequency, and the upper crankshaft 13-1 is prevented from rotating by the split structure. At this time, the internal gear pump 3 can normally pump oil upward and supply the oil at the bottom of the oil pool to the pump body. During this process, the compressor pump body does not produce relative movement; after a period of time, after the oil has fully entered the compressor pump body area, the compressor stops and rotates forward, and the upper crankshaft 13-1 and the lower crankshaft 13-2 operate together driven by the motor 6. While supplying oil normally, the compressor pump body operates together. At this time, the pump body is already in a state of being fully soaked in refrigeration oil. There is no lack of oil or dry grinding during operation, which greatly improves the life and reliability of the compressor; due to the use of an internal gear pump, the oil pump can supply oil upward in both forward and reverse directions by controlling the inlet and outlet positions.

[0057] Example 1:

[0058] The conventional crankshaft 13 of the scroll compressor is an integrated type. When the motor 6 is running, the crankshaft 13 is driven, and the crankshaft 13 drives the internal gear pump 3 and the movable scroll 10 to move. In order to realize the above control logic, the present invention designs a split crankshaft 13, which can separate the driving of the movable scroll 10 from the driving of the internal gear pump 3. The structure for realizing this function is composed of a ratchet base 14, an inner ratchet 15, an end bearing 16, an outer ratchet 18 and an eccentric portion 17. The ratchet base 14 is integrated with the lower crankshaft 13-2, and the outer ratchet 18 is integrated with the eccentric portion 17. The features of each component are now described:

[0059] Ratchet base 14: used to limit the rotation range of the inner ratchet 15 to make the inner ratchet effective;

[0060] Inner ratchet 15: Through centrifugal force and special structure, it can cooperate or loosen with outer ratchet 18, so as to realize the combination or separation of motions in different rotation directions.

[0061] End bearing 16: bears the relative motion and thrust of the lower crankshaft 13-2 when it rotates in reverse direction;

[0062] The outer ratchet 18 is integrated with the eccentric portion 17 of the upper crankshaft 13 - 1 and is used to cooperate with the inner ratchet 15 to drive the eccentric portion 17 and the movable scroll 10 .

[0063] During the reverse rotation phase of the lower crankshaft 13-1, the outer protrusion (ratchet teeth) of the inner ratchet 15 and the inner concave (limiting step) of the outer ratchet 18 cannot cooperate. In this state, the inner ratchet 15 cannot drive the outer ratchet 18 to move, and thus cannot drive the upper crankshaft 13-1 to move. At this time, the pump body rotation can be isolated, so that the internal gear pump 3 rotates while the movable scroll 10 does not rotate. The function of the ratchet base 14 is to limit the swing angle of the inner ratchet 15 to prevent the inner ratchet 15 from failing. The upper and lower end faces of the split upper and lower crankshafts are connected by end bearings 16, which provide support and lubrication when the two move relative to each other.

[0064] When the pump body has been fully soaked, the motor 6 stops running and rotates forward. At this time, the inner ratchet 15 extends outward under the action of centrifugal force, and its convex part (ratchet) is stuck in the concave part (limiting step) of the outer ratchet 18, and under the limiting action of the ratchet base 14, it drives the rotation; due to the balance coefficient problem of the main and auxiliary balance blocks, the structure can only have one convex and concave fit, and the speed needs to be smaller during reverse rotation to reduce the impact of the imbalance on the crankshaft 13. The closer the split setting position of the crankshaft 13 is to the eccentric part 17, the better, and the smaller the impact on the overall stability during reversal, and this is the position where the outer diameter of the crankshaft 13 is the largest, and the rigidity of the relevant structure can be guaranteed.

[0065] First of all, it should be noted that “inward” refers to the direction toward the center of the accommodating space, and “outward” refers to the direction away from the center of the accommodating space.

[0066] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0068] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0069] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0070] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0071] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A lubricating oil supply device, characterized in that: include Oil delivery assembly, used to deliver lubricating oil to the equipment to be lubricated; A driving assembly, connected to the oil delivery assembly through a first transmission member, capable of driving the oil delivery assembly to operate; The second transmission member is connected to the equipment to be lubricated and can drive the equipment to be lubricated to operate under the action of an external power source; a synchronous adjustment component, disposed between the first transmission member and the second transmission member, capable of controlling the connection or separation of the first transmission member and the second transmission member to achieve synchronous operation or independent operation of the oil delivery component and the equipment to be lubricated; When the first transmission member rotates forward or reverse, the synchronous adjustment assembly is in a synchronous state, which can realize the transmission connection between the first transmission member and the second transmission member; when the first transmission member rotates reverse or forward, the synchronous adjustment assembly is in a disengaged state, which can realize the separation of the first transmission member and the second transmission member from each other; The synchronous adjustment component includes an inner ratchet and an outer ratchet, the inner ratchet is rotatably arranged on the first transmission member, and the outer ratchet is arranged on the second transmission member. It also includes a first limiting structure arranged on the first transmission member for limiting and positioning the inner ratchet, and a second limiting structure arranged on the outer ratchet for limiting and positioning the inner ratchet; when the synchronous adjustment component is in a synchronous state, the inner ratchet and the outer ratchet are limitedly connected by the second limiting structure; when the synchronous adjustment component is in a separated state, the inner ratchet and the first transmission member are limitedly connected by the first limiting structure.

2. The lubricating oil supply device according to claim 1, characterized in that: The inner ratchet is provided with a crescent-shaped ratchet extending outward, and the first limiting structure includes a ratchet base for supporting the inner ratchet and a limiting boss provided on the ratchet base and capable of abutting against the ratchet; the outer ratchet is an annular structure, which is sleeved on the outside of the ratchet base; the second limiting structure is a limiting step provided on the inner ring of the outer ratchet and capable of abutting against the ratchet.

3. The lubricating oil supply device according to claim 1, characterized in that: The inner ratchet is provided with crescent-shaped ratchet teeth extending outward, and the first limiting structure includes stop pins arranged on opposite sides of the inner ratchet; the outer ratchet is an annular structure, which is sleeved on the outside of the inner ratchet; the second limiting structure is a limiting step arranged on the inner ring of the outer ratchet and can abut against the ratchet teeth.

4. The lubricating oil supply device according to claim 1, characterized in that: The inner ratchet is provided with a crescent-shaped ratchet extending outward, the first limiting structure includes a shaft key arranged beside the inner ratchet shaft, and a limiting stop window is provided at the corresponding position of the inner ratchet; the outer ratchet is an annular structure, which is sleeved on the outside of the inner ratchet; the second limiting structure is a limiting step arranged on the inner ring of the outer ratchet and can abut against the ratchet.

5. The lubricating oil supply device according to any one of claims 1 to 4, characterized in that: It also includes end bearings arranged on the top of the first transmission member and the bottom of the second transmission member.

6. The lubricating oil supply device according to any one of claims 1 to 4, characterized in that: An eccentric portion is further provided between the outer ratchet and the second transmission member.

7. The lubricating oil supply device according to claim 1 or 2, characterized in that: The oil delivery assembly includes an internal gear pump, an oil delivery channel arranged axially along the first transmission member and the second transmission member, and a first through hole and a second through hole arranged on the ratchet base and the inner ratchet and connected to the oil delivery channel respectively; the second through hole is a waist-shaped hole.

8. The lubricating oil supply device according to claim 1, characterized in that: The first transmission member is a lower crankshaft; the second transmission member is an upper crankshaft arranged concentrically with the lower crankshaft.

9. A scroll compressor, characterized in that: It comprises the lubricating oil supply device as described in any one of claims 1-8.

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