Sliding block with oil storage tank, pump body structure and compressor
By setting an oil reservoir on the upper end face of the sliding block, the problem of poor lubrication between the slider and the bearing is solved, resulting in better lubrication and extended equipment life.
Patent Information
- Application Number
- CN202520567982.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The poor lubrication between the slider and bearing in traditional rotary compressors leads to frictional loss and wear, affecting the compactness and reliability of the equipment, and the complex lubrication system increases manufacturing costs.
An oil reservoir is provided on the upper end face of the sliding block. Gravity and motion inertia are used to make the lubricating oil cover the contact surface between the slider and the bearing, forming a stable oil film and improving the lubrication effect.
Reduce friction loss, extend equipment service life, maintain sealing, reduce friction and wear, and improve equipment operating efficiency and reliability.
Smart Images
Figure CN223806277U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to compressor technical field especially is related to a sliding block with oil reservoir, pump body structure and compressor. BACKGROUND
[0002] Rotary compressor is generally composed of a shell, a pump body and a motor arranged in the shell. The pump body includes an upper bearing, a cylinder, a lower bearing, a crankshaft, a rotor piston and a sliding block. The upper bearing and the lower bearing are arranged on the upper and lower end faces of the cylinder respectively and jointly enclose a compression chamber for compressing refrigerant. The rotor piston is sleeved on the crankshaft and movably arranged in the compression chamber. The compression chamber of the cylinder is provided with a sliding groove along the radial direction for the sliding block to slide. The inner side of the sliding block abuts against the rotor piston. The outer side of the sliding block is connected to the outer side of the sliding groove through an extension spring. The crankshaft drives the rotor piston to rotate circumferentially and pushes the sliding block to slide in the sliding groove along the radial direction. The extension of the extension spring makes the inner side of the sliding block always abut against the outer side of the rotor piston. The end face of the sliding block along the axial direction contacts the end face of the bearing and forms a friction surface.
[0003] The good lubrication between the sliding block and the bearing is indispensable for the efficient operation of the compressor. The traditional lubrication methods such as oil bath lubrication and splash lubrication generally cannot ensure that the contact surface between the sliding block and the bearing is always fully lubricated. This easily leads to dry friction or boundary friction in some areas, thereby increasing energy loss and component wear. In addition, the complex lubrication system not only has high manufacturing cost but also may affect the compactness and reliability of the whole machine. SUMMARY
[0004] Therefore, the utility model aims at overcoming the defects of the prior art and providing a sliding block with an oil reservoir, a pump body structure and a compressor. The oil reservoir arranged on the upper end face of the sliding block can effectively improve the lubrication effect of the contact surface between the sliding block, the bearing and the cylinder, reduce friction loss and prolong the service life of the equipment.
[0005] To achieve the above-mentioned purpose, the utility model embodiment provides a sliding block with an oil reservoir, which is applied to a pump body structure. The pump body structure has a sliding groove for the reciprocating motion of the sliding block. The two end faces of the sliding block along the reciprocating motion direction are an inner end face and an outer end face respectively. The inner end face of the sliding block is used to abut against the rotor piston. The upper end face of the sliding block for connecting the inner end face and the outer end face is recessed and provided with an oil reservoir. The oil reservoir is arranged close to the outer end face of the sliding block.
[0006] Thus, according to the sliding block with the oil storage groove, the oil storage groove is arranged on the upper end surface of the sliding block, and the oil storage groove is arranged close to the outer end surface of the sliding block, so that the storage of the lubricating oil is realized by the oil storage groove, so that when the sliding block reciprocates in the sliding groove, the refrigerating machine oil can flow into and cover the contact surface of the sliding block and the bearing more easily by the action of gravity and the inertia of the sliding block, and the upper end surface of the sliding block forms a stable oil film, so that the friction loss and the wear degree are reduced, and the safety distance between the oil storage groove and the compression cavity of the cylinder is maintained to ensure the sealing property, the lubricating effect of the contact surface of the sliding block, the bearing and the cylinder is effectively improved, the friction loss is reduced, and the service life of the pump body structure is prolonged.
[0007] As an implementation form, the width of the upper end surface of the sliding block is T, the width of the oil storage groove is W, and 0.2T≤W≤0.8T.
[0008] As an implementation form, the minimum distance between the oil storage groove and the outer end surface of the sliding block is d, and 1mm≤d≤5mm.
[0009] As an implementation form, the groove depth of the oil storage groove is h, and 1mm≤h≤3mm.
[0010] As an implementation form, the groove depth of the oil storage groove is 2mm.
[0011] As an implementation form, the oil storage groove is one of a U-shaped groove, a V-shaped groove and a rectangular groove.
[0012] As an implementation form, the middle part of the outer end surface of the sliding block is recessed to form a spring mounting groove.
[0013] The utility model embodiment second aspect provides a kind of pump body structure, including upper bearing, cylinder, lower bearing, crankshaft, rotor piston and the sliding block with the oil storage groove described in any one of the above;The upper bearing, cylinder, lower bearing are sequentially connected along axial direction, the crankshaft is arranged in the upper bearing, cylinder, lower bearing, the cylinder is sequentially opened with compression cavity along axial direction, the compression cavity is opened with sliding groove along radial direction, the rotor piston is sleeved in the crankshaft, and the rotor piston is arranged along the inner wall of the compression cavity and rolls;
[0014] The sliding block can reciprocatingly be arranged in the sliding groove, and the inner end surface of the sliding block is in abutment with the outer surface of the rotor piston, and the upper end surface of the sliding block is in abutment with the upper bearing, and the lower end surface of the sliding block is in abutment with the lower bearing.
[0015] Therefore, the pump body structure according to the embodiment of the utility model, through setting up oil reservoir on the upper end surface of the sliding block, can effectively improve the lubricating effect of the contact surface between the sliding block and the bearing and the cylinder, reduce the friction loss, and prolong the service life of the equipment.
[0016] The utility model embodiment third aspect provides a kind of pump body structure, including upper bearing, first cylinder, intermediate plate, second cylinder, lower bearing, crankshaft, first rotor piston, second rotor piston and the sliding block with oil reservoir as described in any one of the above;The upper bearing, first cylinder, intermediate plate, second cylinder, lower bearing are sequentially connected along axial direction, the crankshaft is arranged in the upper bearing, first cylinder, intermediate plate, second cylinder, lower bearing;
[0017] The first cylinder is opened in first compression cavity along axial direction, the first compression cavity is opened in first sliding slot along radial direction, the first rotor piston is sleeved on the crankshaft, and the first rotor piston is arranged along the inner wall of the first compression cavity, and the first sliding slot can be reciprocally movably arranged with the sliding block, the inner end surface of the sliding block is in abutment with the outer side surface of the first rotor piston, the upper end surface of the sliding block is in abututment with the upper bearing, and the lower end surface of the sliding block is in abututment with the intermediate plate;
[0018] The second cylinder is opened in second compression cavity along axial direction, the second compression cavity is opened in second sliding slot along radial direction, the second rotor piston is sleeved on the crankshaft, and the second rotor piston is arranged along the inner wall of the second compression cavity, and the second sliding slot can be reciprocally movably arranged with the sliding block, the inner end surface of the sliding block is in abutment with the outer side surface of the second rotor piston, the upper end surface of the sliding block is in abututment with the intermediate plate, and the lower end surface of the sliding block is in abututment with the lower bearing.
[0019] Therefore, the pump body structure according to the embodiment of the utility model, through setting up oil reservoir on the upper end surface of the sliding block, can effectively improve the lubricating effect of the contact surface between the sliding block and the bearing and the cylinder, reduce the friction loss, and prolong the service life of the equipment.
[0020] The utility model embodiment fourth aspect provides a kind of compressor, including the pump body structure of any one of the above. According to the compressor of the utility model embodiment, by setting up oil reservoir on the upper end surface of the sliding block, the lubricating effect of the contact surface between the sliding block and the bearing and the cylinder can be effectively improved, the friction loss is reduced, and the service life of the equipment is prolonged.
[0021] In order to better understand and implement, the utility model is described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1Structure schematic view of the sliding block with the oil storage groove of the embodiment of the utility model for one;
[0023] Figure 2 Structure schematic view of the sliding block with the oil storage groove of the embodiment of the utility model for two;
[0024] Figure 3 For Figure 2 The cross section schematic view of A-A direction shown in the figure;
[0025] Figure 4 Structure schematic view of the sliding block with the oil storage groove of the embodiment of the utility model for three;
[0026] Figure 5 Structure schematic view of the sliding block with the oil storage groove of the embodiment of the utility model for four;
[0027] Figure 6 For Figure 5 The cross section schematic view of B-B direction shown in the figure;
[0028] Figure 7 Structure schematic view of the sliding block with the oil storage groove of the embodiment of the utility model for five;
[0029] Figure 8 Structure schematic view of the sliding block with the oil storage groove of the embodiment of the utility model for six;
[0030] Figure 9 For Figure 8 The cross section schematic view of C-C direction shown in the figure;
[0031] Figure 10 Structure schematic view of the sliding block with the oil storage groove of the embodiment of the utility model for one;
[0032] Figure 11 For Figure 10 The enlarged schematic view of A part shown in the figure;
[0033] Figure 12 Structure schematic view of the sliding block with the oil storage groove of the embodiment of the utility model for two;
[0034] Figure 13 For Figure 12 The enlarged schematic view of B part shown in the figure;
[0035] Figure 14 Structure schematic view of the sliding block with the oil storage groove of the embodiment of the utility model for three;
[0036] Figure 15 For Figure 14 The enlarged schematic view of C part shown in the figure.
[0037] Mark explanation:
[0038] 100, sliding block; 101, inner end face; 102, outer end face; 103, upper end face; 110, oil storage groove; 120, spring mounting groove; 200, pump body structure; 210, upper bearing; 220, first cylinder; 221, first sliding groove; 230, second cylinder; 240, lower bearing; 250, crankshaft. DETAILED DESCRIPTION
[0039] To further illustrate the embodiments, the utility model provides the drawing. These drawings are part of the utility model disclosure, which mainly serves to illustrate the embodiments, and can be explained with the operation principle of the embodiments in cooperation with the related description of the specification. With reference to these contents, those skilled in the art should understand other possible embodiments and the advantages of the utility model.
[0040] In the related art, the rotary compressor is generally composed of a shell and a pump body and a motor arranged in the shell. The pump body includes an upper bearing, a cylinder, a lower bearing, a crankshaft, a rotor piston and a sliding block. The upper bearing and the lower bearing are arranged at the upper and lower end faces of the cylinder respectively and jointly enclose a compression chamber for compressing refrigerant. The rotor piston is sleeved on the crankshaft and movably arranged in the compression chamber. The compression chamber of the cylinder is provided with a sliding groove along the radial direction for the sliding block to slide. The inner side of the sliding block abuts against the rotor piston, and the outer side of the sliding block is connected to the outer side of the sliding groove through the extension spring. The crankshaft drives the rotor piston to rotate circumferentially and pushes the sliding block to slide in the sliding groove along the radial direction. The extension of the extension spring makes the inner side of the sliding block always abut against the outer side of the rotor piston, and the end face of the sliding block along the axial direction contacts the end face of the bearing to form a friction surface. The good lubrication between the sliding block and the bearing is indispensable for the efficient operation of the compressor. The traditional lubrication methods such as oil bath lubrication and splash lubrication generally cannot ensure that the contact surface between the sliding block and the bearing is always fully lubricated, which easily leads to dry friction or boundary friction in the local area, thereby increasing the energy loss and the wear of the parts. In addition, the complex lubrication system not only has high manufacturing cost, but also may affect the compactness and reliability of the whole machine.
[0041] Therefore, the utility model embodiment provides a sliding block 100 with an oil storage groove 110, a pump body structure 200 and a compressor. The sliding block 100 with the oil storage groove 110, the pump body structure 200 and the compressor according to the utility model embodiment can effectively improve the lubrication effect of the contact surface between the sliding block 100 and the bearing and the cylinder, reduce the friction loss and prolong the service life of the equipment by arranging the oil storage groove 110 on the upper end face 103 of the sliding block 100.
[0042] Please refer to Figures 1 to 9The utility model discloses a sliding block 100 with oil storage groove 110, is applied to pump body structure 200, and pump body structure 200 has the slide groove for the reciprocating motion of sliding block 100, and the two end surfaces of sliding block 100 along its reciprocating motion direction are respectively inner end surface 101 and outer end surface 102, and inner end surface 101 is used to be opposite with rotor piston, sliding block 100 is used to connect the upper end surface 103 of inner end surface 101 and outer end surface 102 and is recessed and is provided with oil storage groove 110, and oil storage groove 110 is close to the outer end surface 102 of sliding block 100 and is arranged.
[0043] Therefore, according to the sliding block 100 with the oil storage groove 110 of the utility model embodiment, the oil storage groove 110 is arranged on the upper end surface 103 of the sliding block 100, and the oil storage groove 110 is arranged close to the outer end surface 102 of the sliding block 100, so that the oil storage groove 110 is used for storing lubricating oil, so that the refrigerating machine oil can flow into and cover the contact surface of the sliding block 100 and the bearing more easily when the sliding block 100 reciprocates in the slide groove under the action of gravity and the inertia of the sliding block 100, and the upper end surface 103 of the sliding block 100 forms a stable oil film, so as to reduce the friction loss and the degree of wear, and at the same time, the safety distance between the oil storage groove 110 and the compression chamber of the cylinder is maintained to ensure the sealing property, the lubricating effect of the contact surface of the sliding block 100, the bearing and the cylinder is effectively improved, the friction loss is reduced, and the service life of the pump body structure 200 is prolonged.
[0044] In order to ensure the rigidity and carrying capacity of the sliding block 100 and ensure the lubrication degree, in the utility model embodiment, the width of the upper end surface 103 of the sliding block 100 is T, the width of the oil storage groove 110 is W, and 0.2T≤W≤0.8T. It can be understood that the ratio of the width of the oil storage groove 110 to the width of the upper end surface 103 of the sliding block 100 cannot exceed 0.8 at most and cannot be lower than 0.2 at least, and the center line of the oil storage groove 110 along the reciprocating motion of the sliding block 100 overlaps the center line of the upper end surface 103 of the sliding block 100 along the reciprocating motion of the sliding block 100, so as to ensure the rigidity requirement of the upper end surface 103 of the sliding block 100, and the oil storage of the oil storage groove 110 can meet the lubricating effect.
[0045] To ensure that the sliding block 100 does not cause gas leakage in the compression chamber of the cylinder during its reciprocating motion, the minimum distance between the oil reservoir 110 of the sliding block 100 and the outer end face 102 of the sliding block 100 is d, where 1mm ≤ d ≤ 5mm. In other words, by arranging the oil reservoir 110 near the outer end face 102 of the sliding block 100, even when the sliding block 100 extends to its deepest point into the compression chamber of the cylinder, the oil reservoir 110 will not enter the compression chamber. Simultaneously, it ensures that the oil reservoir 110 enters the contact surface between the bearing and the cylinder, thus guaranteeing the airtightness of the cylinder and providing lubrication to the contact surface between the bearing and the cylinder.
[0046] In this embodiment of the invention, the oil reservoir 110 is one of a U-shaped groove, a V-shaped groove, or a rectangular groove. Furthermore, in this embodiment of the invention, a spring mounting groove 120 is recessed in the middle of the outer end face 102 of the sliding block 100, so that the sliding block 100 and the cylinder's sliding groove can be connected via a spring or other telescopic structure.
[0047] Optionally, in some embodiments of this utility model, the depth of the oil storage tank 110 is h, where 1mm≤h≤3mm.
[0048] The following is combined Figures 1 to 3 The following is a detailed description of a specific embodiment of the sliding block 100 with an oil storage tank 110 according to the present invention. It is worth understanding that this embodiment is merely illustrative and should not be construed as limiting the present invention.
[0049] This embodiment provides a sliding block 100 with an oil reservoir 110, applied to a pump body structure 200. The pump body structure 200 has a groove for the sliding block 100 to reciprocate. The two end faces of the sliding block 100 along its reciprocating direction are an inner end face 101 and an outer end face 102, respectively. The inner end face 101 is used to abut against the rotor piston. The upper end face 103 of the sliding block 100, which connects the inner end face 101 and the outer end face 102, is recessed and has an oil reservoir 110. The oil reservoir 110 is located near the outer end face 102 of the sliding block 100. The oil reservoir 110 has a U-shaped groove structure.
[0050] In this embodiment, the width of the upper end face 103 of the sliding block 100 is T, and the width of the oil storage tank 110 is W, where W = 0.5T; secondly, the minimum distance between the oil storage tank 110 of the sliding block 100 and the outer end face 102 of the sliding block 100 is d, where d = 3mm; furthermore, the depth of the oil storage tank 110 is h, where h = 2mm.
[0051] Furthermore, in this embodiment, a spring mounting groove 120 is formed in the middle of the outer end face 102 of the sliding block 100, so that the sliding block 100 and the cylinder groove can be connected by a telescopic structure such as a spring.
[0052] The utility model discloses a sliding block 100 with oil storage groove 110, which is applied to a pump body structure 200. Figures 4 to 6 The detailed description is not limited to the utility model.
[0053] The sliding block 100 with the oil storage groove 110 is applied to the pump body structure 200, which has a sliding groove for the reciprocating movement of the sliding block 100. The two end faces of the sliding block 100 along the reciprocating direction thereof are an inner end face 101 and an outer end face 102, respectively. The inner end face 101 is used for abutting against a rotor piston. The upper end face 103 of the sliding block 100, which is used for connecting the inner end face 101 and the outer end face 102, is recessed to be provided with the oil storage groove 110. The oil storage groove 110 is arranged close to the outer end face 102 of the sliding block 100. The oil storage groove 110 is a V-shaped groove structure.
[0054] In the embodiment, the width of the upper end face 103 of the sliding block 100 is T, the width of the oil storage groove 110 is W, and W=0.2T. In addition, the minimum distance between the oil storage groove 110 of the sliding block 100 and the outer end face 102 of the sliding block 100 is d, and d=1mm. Furthermore, the groove depth of the oil storage groove 110 is h, and h=3mm.
[0055] In addition, in the embodiment, the middle part of the outer end face 102 of the sliding block 100 is recessed to form a spring mounting groove 120, so as to facilitate the connection between the sliding block 100 and the sliding groove of the cylinder through the spring and other telescopic structures.
[0056] The utility model discloses a sliding block 100 with oil storage groove 110, which is applied to a pump body structure 200. Figures 7 to 9 The detailed description is not limited to the utility model.
[0057] The sliding block 100 with the oil storage groove 110 is applied to the pump body structure 200, which has a sliding groove for the reciprocating movement of the sliding block 100. The two end faces of the sliding block 100 along the reciprocating direction thereof are an inner end face 101 and an outer end face 102, respectively. The inner end face 101 is used for abutting against a rotor piston. The upper end face 103 of the sliding block 100, which is used for connecting the inner end face 101 and the outer end face 102, is recessed to be provided with the oil storage groove 110. The oil storage groove 110 is arranged close to the outer end face 102 of the sliding block 100. The oil storage groove 110 is a V-shaped groove structure.
[0058] In the embodiment, the width of the upper end surface 103 of the sliding block 100 is T, the width of the oil storage groove 110 is W, and W=0.8T; secondly, the minimum distance between the oil storage groove 110 of the sliding block 100 and the outer end surface 102 of the sliding block 100 is d, and d=5mm; in addition, the groove depth of the oil storage groove 110 is h, and h=1mm.
[0059] In addition, in the embodiment, the middle part of the outer end surface 102 of the sliding block 100 is recessed to form a spring mounting groove 120, so that the sliding block 100 and the sliding groove of the cylinder are connected through the expansion structure such as a spring.
[0060] The utility model discloses an embodiment second aspect provides a kind of pump body structure, including upper bearing, cylinder, lower bearing, crankshaft, rotor piston and the sliding block 100 with oil storage groove 110 of any one described above;Upper bearing, cylinder, lower bearing are sequentially connected along axial direction, crankshaft is arranged in upper bearing, cylinder, lower bearing, cylinder is opened with compression cavity along axial direction, and compression cavity is opened with sliding groove along radial direction, rotor piston is sleeved in crankshaft, and rotor piston is arranged along the inner wall of compression cavity and rolls;Sliding block 100 is set in sliding groove and reciprocates, and the inner end surface 101 of sliding block 100 and the outer side of rotor piston are abutted, and the upper end surface 103 of sliding block 100 and upper bearing are abutted, and the lower end surface of sliding block 100 and lower bearing are abutted.
[0061] It can be understood that the utility model discloses an embodiment for the pump body structure of single cylinder.Thus, according to the pump body structure of the utility model embodiment, by setting oil storage groove 110 in the upper end surface 103 of sliding block 100, the lubrication effect of the contact surface of sliding block 100 and bearing, cylinder can be effectively improved, friction loss is reduced, and the service life of equipment is prolonged.
[0062] Please see Figures 10 to 15 The utility model discloses an embodiment third aspect provides a kind of pump body structure 200, including upper bearing 210, first cylinder 220, intermediate plate, second cylinder 230, lower bearing 240, crankshaft 250, first rotor piston, second rotor piston and the sliding block 100 with oil storage groove 110 of any one described above;Upper bearing 210, first cylinder 220, intermediate plate, second cylinder 230, lower bearing 240 are sequentially connected along axial direction, and crankshaft 250 is arranged in upper bearing 210, first cylinder 220, intermediate plate, second cylinder 230, lower bearing 240;
[0063] The first cylinder 220 is provided with a first compression cavity penetrating through in an axial direction, the first compression cavity is provided with a first sliding groove 221 in a radial direction, a first rotor piston is sleeved on the crankshaft 250, and the first rotor piston is arranged in rolling mode along the inner wall of the first compression cavity, and the sliding block 100 is arranged in reciprocating mode in the first sliding groove 221, the inner end surface 101 of the sliding block 100 is in abutment with the outer side surface of the first rotor piston, the upper end surface 103 of the sliding block 100 is in abutment with the upper bearing 210, and the lower end surface of the sliding block 100 is in abutment with the intermediate plate;
[0064] The second cylinder 230 is provided with a second compression cavity penetrating through in an axial direction, the second compression cavity is provided with a second sliding groove in a radial direction, a second rotor piston is sleeved on the crankshaft 250, and the second rotor piston is arranged in rolling mode along the inner wall of the second compression cavity, and the sliding block 100 is arranged in reciprocating mode in the second sliding groove, the inner end surface 101 of the sliding block 100 is in abutment with the outer side surface of the second rotor piston, the upper end surface 103 of the sliding block 100 is in abutment with the intermediate plate, and the lower end surface of the sliding block 100 is in abutment with the lower bearing 240.
[0065] It can be understood that the pump body structure 200 is a double-cylinder pump body structure. According to the pump body structure 200, the oil storage groove 110 is arranged on the upper end surface 103 of the sliding block 100, the lubrication effect of the contact surface between the sliding block 100 and the upper bearing 210 and the first cylinder 220 can be effectively improved, friction loss is reduced, and the service life of the equipment is prolonged.
[0066] The compressor provided in the fourth aspect of the utility model embodiment, through setting the oil storage groove 110 on the upper end surface 103 of the sliding block 100, the lubrication effect of the contact surface between the sliding block 100 and the bearing and the cylinder can be effectively improved, friction loss is reduced, and the service life of the equipment is prolonged.
[0067] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as a limitation on the utility model.
[0068] The above embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as limiting the utility model to the sliding block 100 with the oil storage tank 110, the pump body structure 200 and the compressor range. It should be pointed out that for ordinary skilled persons in the art, under the premise of not departing from the utility model concept, several modifications and improvements can be made, which all belong to the protection scope of the utility model.
Claims
1. A sliding block with an oil storage groove, applied to a pump body structure, characterized in that: the pump body structure has a sliding groove for reciprocating movement of the sliding block, two end faces of the sliding block along the reciprocating movement direction thereof are an inner end face and an outer end face respectively, the inner end face of the sliding block is used for abutting against a rotor piston; an upper end face of the sliding block for connecting the inner end face and the outer end face is recessed to be provided with an oil storage groove, and the oil storage groove is arranged close to the outer end face of the sliding block. 2.The sliding block with an oil storage groove according to claim 1, characterized in that: the width of the upper end face of the sliding block is T, the width of the oil storage groove is W, and 0.2T≤W≤0.8T. 3.The sliding block with an oil storage groove according to claim 1, characterized in that: the minimum distance between the oil storage groove and the outer end face of the sliding block is d, and 1mm≤d≤5mm. 4.The sliding block with an oil storage groove according to claim 1, characterized in that: the groove depth of the oil storage groove is h, and 1mm≤h≤3mm. 5.The sliding block with an oil storage groove according to claim 4, characterized in that: the groove depth of the oil storage groove is 2mm. 6.The sliding block with an oil storage groove according to claim 1, characterized in that: the oil storage groove is one of a U-shaped groove, a V-shaped groove and a rectangular groove. 7.The sliding block with an oil storage groove according to claim 1, characterized in that: a spring mounting groove is formed in the middle of the outer end face of the sliding block. 8.A pump body structure, characterized in that: it comprises an upper bearing, a cylinder, a lower bearing, a crankshaft, a rotor piston and a sliding block with an oil storage groove according to any one of claims 1 to 7; the upper bearing, the cylinder and the lower bearing are sequentially connected along an axial direction, the crankshaft is arranged through the upper bearing, the cylinder and the lower bearing, the cylinder is provided with a compression cavity penetrating along the axial direction, the compression cavity is provided with a sliding groove penetrating along a radial direction, the rotor piston is sleeved on the crankshaft and is arranged to roll along an inner wall of the compression cavity; the sliding block is arranged to reciprocate in the sliding groove, the inner end face of the sliding block abuts against an outer side face of the rotor piston, the upper end face of the sliding block abuts against the upper bearing, and the lower end face of the sliding block abuts against the lower bearing. 9.A pump body structure, characterized in that: it comprises an upper bearing, a first cylinder, an intermediate plate, a second cylinder, a lower bearing, a crankshaft, a first rotor piston, a second rotor piston and a sliding block with an oil storage groove according to any one of claims 1 to 7; the upper bearing, the first cylinder, the intermediate plate, the second cylinder and the lower bearing are sequentially connected along an axial direction, and the crankshaft is arranged through the upper bearing, the first cylinder, the intermediate plate, the second cylinder and the lower bearing. The first cylinder is provided with a first compression cavity in the axial direction, the first compression cavity is provided with a first sliding groove in the radial direction, the first rotor piston is sleeved on the crankshaft, and the first rotor piston is arranged in rolling mode along the inner wall of the first compression cavity; the sliding block is arranged in reciprocating mode in the first sliding groove, the inner end surface of the sliding block is in abutment with the outer side surface of the first rotor piston, the upper end surface of the sliding block is in abutment with the upper bearing, and the lower end surface of the sliding block is in abutment with the intermediate plate; The second cylinder is provided with a second compression cavity in the axial direction, the second compression cavity is provided with a second sliding groove in the radial direction, the second rotor piston is sleeved on the crankshaft, and the second rotor piston is arranged in rolling mode along the inner wall of the second compression cavity; the sliding block is arranged in reciprocating mode in the second sliding groove, the inner end surface of the sliding block is in abutment with the outer side surface of the second rotor piston, the upper end surface of the sliding block is in abutment with the intermediate plate, and the lower end surface of the sliding block is in abutment with the lower bearing.
10. A compressor, characterized in that: The compressor comprises the pump body structure according to claim 8 or 9.