CN218717501U - Compressor and refrigeration equipment with same - Google Patents

Abstract

The utility model discloses a compressor and have its refrigeration plant, the compressor includes: the compression mechanism is arranged in the shell and provided with a crankshaft, a first thrust matching portion is arranged on the crankshaft, the thrust mechanism is arranged in the shell and provided with a second thrust matching portion, and the first thrust matching portion and the second thrust matching portion are in concave-convex matching structure and matched with thrust. According to the utility model discloses a compressor can increase the area of contact in bent axle and the thrust cooperation area of thrust mechanism betterly to avoid defects such as bent axle and thrust mechanism upper groove or arch to lead to bent axle and thrust mechanism's area of contact to reduce, thereby can avoid increasing because of the bent axle that the area of contact undersize leads to and the stress in the thrust cooperation area of thrust mechanism, and then can reduce the damage of stress increase to bent axle and thrust mechanism, do benefit to the reliability that promotes the compressor.

Description

Compressor and refrigeration equipment with same

Technical Field

The utility model belongs to the technical field of the compressor technique and specifically relates to a compressor and have its refrigeration plant is related to.

Background

In the related art, compressors are widely applied to refrigeration equipment in multiple industries, such as air conditioners and the like, wherein when a high-backpressure scroll compressor works, pressure distribution of a whole cavity changes due to working condition changes, the stress of an actual whole shafting also changes, and in order to prevent the shafting of the compressor from falling, a shafting thrust scheme is usually adopted for realization.

SUMMERY OF THE UTILITY MODEL

The utility model provides a compressor, compressor has the advantage that the reliability is high.

The utility model also provides a refrigeration plant of having above-mentioned compressor.

According to the utility model discloses compressor includes: a housing; the compression mechanism is arranged in the shell and is provided with a crankshaft, and a first thrust matching part is arranged on the crankshaft; the thrust mechanism is arranged in the shell and provided with a second thrust matching part, and the first thrust matching part and the second thrust matching part are in concave-convex fit structures and are in thrust matching.

According to the utility model discloses the compressor, be provided with first thrust cooperation portion on the bent axle, thrust mechanism has second thrust cooperation portion, first thrust cooperation portion and second thrust cooperation portion structure are unsmooth to agree with the structure with the thrust cooperation, can increase the area of contact in bent axle and the thrust cooperation area of thrust mechanism betterly, reduce with the area of contact who avoids defects such as bent axle and thrust mechanism upper groove or arch to lead to bent axle and thrust mechanism, thereby can avoid the bent axle that leads to because of the area of contact undersize and the stress increase in the thrust cooperation area of thrust mechanism, and then can reduce the damage of stress increase to bent axle and thrust mechanism, do benefit to the reliability that promotes the compressor.

According to some embodiments of the invention, an end surface of the crankshaft facing the thrust mechanism is recessed to form a recess, the recess constituting the first thrust mating portion, the thrust mechanism is raised towards a surface of the crankshaft to form a protrusion, the protrusion constituting the second thrust mating portion, the protrusion fitting into the recess; or the end surface of the crankshaft facing the thrust mechanism is protruded to form a convex part, the convex part forms the first thrust matching part, the thrust mechanism is concaved to form a concave part facing the surface of the crankshaft, the concave part forms the second thrust matching part, and the convex part is matched into the concave part.

According to some embodiments of the invention, each of the concave portion and the convex portion is configured as an annular structure.

According to some embodiments of the invention, the recess has a recess thrust surface and the protrusion has a protrusion thrust surface, the recess thrust surface forming a surface-to-surface fit with the protrusion thrust surface.

According to some embodiments of the invention, the recess thrust surface is inclined with respect to a cross section of the crankshaft; and/or the male thrust surface is inclined with respect to a cross-section of the crankshaft.

According to some embodiments of the invention, the angle of inclination of each of the female thrust surface and the male thrust surface with respect to the cross section of the crankshaft is the same.

According to some embodiments of the invention, each of the female thrust surface and the male thrust surface has an inclination angle with respect to the cross section of the crankshaft of not more than 15 °.

According to some embodiments of the invention, the surfaces of the crankshaft and of the thrust mechanism facing each other are all formed with the recesses and the protrusions, wherein the protrusions on the crankshaft engage with corresponding recesses on the thrust mechanism, and the recesses on the crankshaft engage with corresponding protrusions on the thrust mechanism.

According to some embodiments of the invention, the recesses and the protrusions on the crankshaft are arranged alternately in a radial direction of the crankshaft.

According to some embodiments of the invention, the compressor further comprises: the crankshaft extends into the frame from the first end of the frame, and the thrust mechanism is fixed at the second end of the frame.

According to the utility model discloses refrigeration plant, include: the compressor is provided.

According to the utility model discloses refrigeration plant, be provided with first thrust cooperation portion on the bent axle, thrust mechanism has second thrust cooperation portion, first thrust cooperation portion and second thrust cooperation portion structure are unsmooth to agree with the structure with the thrust cooperation, can increase the area of contact in bent axle and the thrust cooperation area of thrust mechanism betterly, reduce with the area of contact who avoids defects such as bent axle and thrust mechanism upper groove or arch to lead to bent axle and thrust mechanism, thereby can avoid the bent axle that leads to because of the area of contact undersize and the stress increase in the thrust cooperation area of thrust mechanism, and then can reduce the damage of stress increase to bent axle and thrust mechanism, do benefit to the reliability that promotes the compressor.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a partial cross-sectional view of a compressor according to an embodiment of the present invention;

fig. 2 is a plan view of a thrust mechanism of a compressor according to an embodiment of the present invention;

fig. 3 is a schematic view of a crankshaft and a thrust mechanism of a compressor according to a first embodiment of the present invention;

FIG. 4 is an enlarged view of area A of FIG. 3;

fig. 5 is a schematic view of a crankshaft and a thrust mechanism of a compressor according to a second embodiment of the present invention;

fig. 6 is an enlarged view of the region B in fig. 5.

Reference numerals:

a compressor 100;

a housing 1;

a crankshaft 2; a first thrust fitting portion 21;

a thrust mechanism 3; a second thrust fitting portion 31; a lubricating oil groove 32;

a recess 4; a recess thrust surface 41; a convex portion 5; a male thrust surface 51;

a frame 6; a first end 61; a second end 62; fitting holes 63.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

A compressor 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 6, a compressor 100 according to an embodiment of the present invention includes: the compression mechanism is arranged in the shell 1, so that the shell 1 has a good protection effect on the compression mechanism, and the compression mechanism can compress a refrigerant entering the shell 1. For example, the compressor 100 is a scroll compressor, a compression space is formed in the casing 1, the compression mechanism is disposed in the compression space, a refrigerant inlet and a refrigerant outlet are formed on the casing 1, and the compression mechanism can compress a refrigerant entering the compression space through the refrigerant inlet and then discharge the compressed refrigerant out of the compressor 100 through the refrigerant outlet, so that the refrigerant can circulate in the air conditioner system to perform cooling/heating adjustment on the indoor space.

Further, the compression mechanism has a crankshaft 2, a first thrust fitting portion 21 is provided on the crankshaft 2, the thrust mechanism 3 is provided in the housing 1, the thrust mechanism 3 has a second thrust fitting portion 31, and the first thrust fitting portion 21 and the second thrust fitting portion 31 are configured as a concave-convex fitting structure to be thrust fitted. That is to say, first anti-thrust cooperation portion 21 and second anti-thrust cooperation portion 31 can form concave-convex structure, and after first anti-thrust cooperation portion 21 and the anti-thrust cooperation of second anti-thrust cooperation portion 31, the concave-convex structure on bent axle 2 namely first anti-thrust cooperation portion 21 can correspond and agree with the concave-convex structure on anti-thrust mechanism 3 namely second anti-thrust cooperation portion 31, makes the concave-convex structure on bent axle 2 can compensate the concave-convex structure on anti-thrust mechanism 3 better, or makes the concave-convex structure on anti-thrust mechanism 3 can compensate the concave-convex structure on bent axle 2 better.

The thrust mechanism 3 realizes thrust to the crankshaft 2 through thrust cooperation of the first thrust matching part 21 and the second thrust matching part 31, and can well avoid position deviation of the crankshaft 2 when stress changes in the operation process of the compressor 100, so that reliability of the compressor 100 is favorably improved, in other words, the thrust mechanism 3 bears impact force of the crankshaft 2, therefore, the first thrust matching part 21 and the second thrust matching part 31 are constructed into a concave-convex matching structure, and the matching area between the first thrust matching part 21 and the second thrust matching part 31 can be better increased, namely, the contact area in the thrust matching area of the crankshaft 2 and the thrust mechanism 3 can be better increased, so that the contact area of the crankshaft 2 and the thrust mechanism 3 is prevented from being reduced due to defects such as grooves or bulges on the crankshaft 2 and the thrust mechanism 3, and the stress increase in the thrust matching area of the crankshaft 2 and the thrust mechanism 3 due to small contact area can be avoided, further, the damage to the crankshaft 2 and the thrust mechanism 3 due to stress increase can be reduced, and reliability of the compressor 100 is favorably improved. Further, it is possible to preferably avoid frictional noise generated by point contact or line contact formed between the crankshaft 2 and the thrust mechanism 3, and it is advantageous to improve the silent performance of the compressor 100.

In a specific example, the crankshaft 2 extends in the up-down direction, the first thrust matching portion 21 is formed at the lower end of the crankshaft 2, the thrust mechanism 3 is disposed below the first thrust matching portion 21, a through hole is formed in the thrust mechanism 3, the second thrust matching portion 31 is formed at the upper end surface of the thrust mechanism 3 and is disposed around the through hole, the first thrust matching portion 21 and the second thrust matching portion 31 are disposed opposite to each other in the up-down direction, the bottom wall of the first thrust matching portion 21 is pressed against the top wall of the second thrust matching portion 31, and the concave-convex structure on the bottom wall of the first thrust matching portion 21 corresponds to and fits the concave-convex structure on the top wall of the second thrust matching portion 31, so that the contact area between the first thrust matching portion 21 and the second thrust matching portion 31 can be increased, that the contact area between the crankshaft 2 and the thrust mechanism 3 in the thrust matching area is increased, thereby damage caused by stress concentration between the crankshaft 2 and the thrust mechanism 3 can be avoided, and the reliability of the compressor 100 can be improved.

According to the utility model discloses compressor 100, be provided with first thrust cooperation portion 21 on bent axle 2, thrust mechanism 3 has second thrust cooperation portion 31, first thrust cooperation portion 21 and second thrust cooperation portion 31 structure are unsmooth to agree with the structure with the thrust cooperation, can increase the area of contact in bent axle 2 and the 3 thrust cooperation areas of thrust mechanism betterly, reduce with the area of contact who avoids bent axle 2 and 3 upper groove of thrust mechanism or defects such as arch to lead to bent axle 2 and thrust mechanism 3, thereby can avoid the increase of stress in bent axle 2 and the 3 thrust cooperation areas of thrust mechanism that lead to because of the area of contact undersize, and then can reduce the damage of the increase of stress to bent axle 2 and thrust mechanism 3, do benefit to the reliability that promotes compressor 100.

According to some embodiments of the present invention, as shown in fig. 3 and 4, the end surface of the crankshaft 2 facing the thrust mechanism 3 is recessed to form a recess 4, the recess 4 constitutes a first thrust mating portion 21, the thrust mechanism 3 is raised towards the surface of the crankshaft 2 to form a protrusion 5, the protrusion 5 constitutes a second thrust mating portion 31, and the protrusion 5 is fitted into the recess 4. That is, after thrust cooperation between thrust mechanism 3 and crankshaft 2, second thrust cooperation portion 31 inserts in first thrust cooperation portion 21, and the lateral wall laminating of convex part 5 and concave part 4, through agreeing with of convex part 5 and concave part 4, can increase the area that first thrust cooperation portion 21 and second thrust cooperation portion 31 agree with betterly, thereby can increase the area of contact in crankshaft 2 and the thrust cooperation area of thrust mechanism 3 betterly, and then can avoid leading to stress concentration to cause the damage to crankshaft 2 or thrust mechanism 3 because of the area of contact between first thrust cooperation portion 21 and the second thrust cooperation portion 31 is less, do benefit to the reliability that promotes compressor 100. For example, the thrust mechanism 3 is arranged below the crankshaft 2, the lower end surface of the crankshaft 2 faces upwards to form a concave part 4 in a concave mode, the upper end surface of the thrust mechanism 3 faces upwards to form a convex part 5 in a convex mode, and the upper surface of the convex part 5 is attached to the lower surface of the concave part 4 to increase the fit area between the concave part 4 and the convex part 5.

According to some embodiments of the present invention, as shown in fig. 5 and 6, the end surface of the crankshaft 2 facing the thrust mechanism 3 protrudes to form a protrusion 5, the protrusion 5 constitutes a first thrust fitting portion 21, the thrust mechanism 3 is recessed to form a recess 4 facing the surface of the crankshaft 2, the recess 4 constitutes a second thrust fitting portion 31, and the protrusion 5 fits into the recess 4. That is, after the thrust mechanism 3 and the crankshaft 2 are in thrust fit, the first thrust fitting part 21 is inserted into the second thrust fitting part 31, the side wall of the convex part 5 is attached to the side wall of the concave part 4, and through the engagement of the convex part 5 and the concave part 4, the contact area of the first thrust fitting part 21 and the second thrust fitting part 31 can be better increased, so that the contact area in the thrust fitting area of the crankshaft 2 and the thrust mechanism 3 can be better increased, further, the damage to the crankshaft 2 or the thrust mechanism 3 caused by stress concentration due to the small contact area between the first thrust fitting part 21 and the second thrust fitting part 31 can be avoided, and the reliability of the compressor 100 is favorably improved. For example, the thrust mechanism 3 is disposed below the crankshaft 2, a lower end surface of the crankshaft 2 protrudes downward to form a convex portion 5, an upper end surface of the thrust mechanism 3 is recessed downward to form a concave portion 4, and a lower surface of the convex portion 5 is fitted with an upper surface of the concave portion 4, so as to increase a fitting area between the concave portion 4 and the convex portion 5.

According to some embodiments of the present invention, each of the concave portion 4 and the convex portion 5 is configured as an annular structure. That is, the concave portion 4 is configured as an annular structure and the convex portion 5 is configured as an annular structure, so that the convex portion 5 and the concave portion 4 can be fitted at any position in the circumferential direction of the crankshaft 2, which is beneficial to improving the fitting degree of the convex portion 5 and the concave portion 4, and in the process that the crankshaft 2 rotates relative to the thrust mechanism 3, the convex portion 5 and the concave portion 4 can keep fitted, so that the stress increase caused by the stagger of the convex portion 5 and the concave portion 4 in the rotation process of the crankshaft 2 is avoided, which is beneficial to further improving the reliability of the compressor 100, and in addition, the installation step of aligning the concave portion 4 and the convex portion 5 can be better omitted, so that the assembly difficulty between the crankshaft 2 and the thrust mechanism 3 can be better reduced, and the assembly efficiency of the compressor 100 can be favorably improved. In a specific example, the recess 4, the projection 5, the crankshaft 2, and the thrust mechanism 3 are coaxially arranged.

According to some embodiments of the invention, the recess 4 has a recess thrust surface 41 and the protrusion 5 has a protrusion thrust surface 51, the recess thrust surface 41 and the protrusion thrust surface 51 forming a surface-to-surface fit. That is to say, through the cooperation of concave part thrust surface 41 and convex part thrust surface 51, make the thrust cooperation area of bent axle 2 and thrust mechanism 3 form face contact, namely, convex part thrust surface 51 and laminating of concave part thrust surface 41, from this, can further promote the degree of agreeing with of concave part 4 and convex part 5 through the cooperation of concave part thrust surface 41 and convex part thrust surface 51, and then do benefit to promoting bent axle 2 and thrust mechanism 3 area of contact in thrust cooperation area, thereby can avoid stress increase in thrust cooperation area to cause the damage to bent axle 2 and thrust mechanism 3, do benefit to promoting bent axle 2 and thrust mechanism 3 complex reliability, in order to guarantee compressor 100's reliability.

According to some alternative embodiments of the invention, the concave thrust surface 41 is inclined with respect to the cross section of the crankshaft 2; and/or the male thrust surface 51 is inclined with respect to the cross section of the crankshaft 2. Therefore, the inclined concave thrust surface 41 and the inclined convex thrust surface 51 can better increase the area of the concave thrust surface 41 and the convex thrust surface 51 under the same radial dimension, so that after the concave thrust surface 41 and the convex thrust surface 51 are in surface fit, the fit area between the concave part 4 and the convex part 5 is further improved, the damage to the crankshaft 2 and the thrust mechanism 3 caused by the increase of the stress in the thrust fit area can be avoided, and the reliability of the compressor 100 is improved. In a specific example, the crankshaft 2 extends in the up-down direction, a concave portion 4 is formed on the thrust mechanism 3, which is perpendicular to the up-down direction, of the cross section of the crankshaft 2, a convex portion 5 is formed on the crankshaft 2, in the up-down direction, both the concave portion thrust surface 41 and the convex portion thrust surface 51 extend obliquely towards the direction away from the central axis of the crankshaft 2, and when the crankshaft 2 applies downward pressure to the thrust mechanism 3, the obliquely arranged concave portion thrust surface 41 and the obliquely arranged convex portion thrust surface 51 can better improve the supporting strength of the thrust mechanism 3 on the crankshaft 2, so that the crankshaft 2 can be better prevented from falling off, and the reliability of the compressor 100 is favorably improved.

According to some alternative embodiments of the present invention, the inclination angle of each of the female thrust surface 41 and the male thrust surface 51 with respect to the cross section of the crankshaft 2 is the same. That is, the inclination angle of the concave thrust surface 41 relative to the cross section of the crankshaft 2 is the same as the inclination angle of the convex thrust surface 51 relative to the cross section of the crankshaft 2, so that when the convex thrust surface 51 is matched with the concave thrust surface 41, the convex thrust surface 51 can be better attached to the concave thrust surface 41, the engagement degree of the concave part 4 and the convex part 5 is favorably improved, the contact area in the thrust matching area of the crankshaft 2 and the thrust mechanism 3 is favorably increased, the acting force between the crankshaft 2 and the thrust mechanism 3 can be better and uniformly dispersed in the thrust matching area of the crankshaft 2 and the thrust mechanism 3, the stress increase caused by point contact or line contact can be better avoided, and the reliability of the compressor 100 is favorably improved.

Further, each of the concave thrust surface 41 and the convex thrust surface 51 is inclined at an angle of not more than 15 ° with respect to the cross section of the crankshaft 2. That is, both the inclination angle of the recess thrust surface 41 with respect to the cross section of the crankshaft 2 and the inclination angle of the projection thrust surface 51 with respect to the cross section of the crankshaft 2 are controlled within a range not exceeding 15 °, that is, the inclination angles of the recess thrust surface 41 and the projection thrust surface 51 with respect to the cross section of the crankshaft 2 are 15 ° at most, for example, the inclination angles of the recess thrust surface 41 and the projection thrust surface 51 with respect to the cross section of the crankshaft 2 may be 5 °, or 7 °, or 10 °, or 13 °, or 15 °, and the like, without being particularly limited thereto. Therefore, the fit between the concave part thrust surface 41 and the convex part thrust surface 51 is ensured, and simultaneously, the increase of the friction force and the friction noise between the crankshaft 2 and the thrust mechanism 3 caused by the overlarge contact area between the concave part thrust surface 41 and the convex part thrust surface 51 can be well avoided, and the reduction of the power consumption of the rotation of the crankshaft 2 is facilitated. In a specific example, the central axis of the crankshaft 2 is parallel to the up-down direction, and the cross section of the crankshaft 2 is perpendicular to the up-down direction, i.e., the cross section of the crankshaft 2 is parallel to the horizontal plane, i.e., the inclination angles of the concave thrust surface 41 and the convex thrust surface 51 with respect to the horizontal plane are 15 ° at most.

According to some embodiments of the invention, the surfaces of the crankshaft 2 and the thrust mechanism 3 facing each other are both formed with recesses 4 and protrusions 5, wherein the protrusions 5 on the crankshaft 2 are in engagement with corresponding recesses 4 on the thrust mechanism 3, and the recesses 4 on the crankshaft 2 are in engagement with corresponding protrusions 5 on the thrust mechanism 3. That is, the end surface of the crankshaft 2 facing the thrust mechanism 3 has a portion in which the recess 4 is formed in a concave manner, the end surface of the crankshaft 2 facing the thrust mechanism 3 also has a portion in which the projection 5 is formed in a convex manner, and the end surface of the crankshaft 2 facing the thrust mechanism 3 has both the projection 5 and the recess 4 formed thereon; the thrust mechanism 3 has a portion concavely forming a concave portion 4 on an end surface facing the crankshaft 2, the thrust mechanism 3 also has a portion convexly forming a convex portion 5 on an end surface facing the crankshaft 2, and the thrust mechanism 3 has both the convex portion 5 and the concave portion 4 on an end surface facing the crankshaft 2. That is, the convex portion 5 and the concave portion 4 on the crankshaft 2 together constitute the first thrust engaging portion 21, the convex portion 5 and the concave portion 4 on the thrust mechanism 3 together constitute the second thrust engaging portion 31, and both the first thrust engaging portion 21 and the second thrust engaging portion 31 are of a convex-concave composite structure. Therefore, after the crankshaft 2 is in thrust fit with the thrust mechanism 3, the convex part 5 and the concave part 4 on the crankshaft 2 are correspondingly matched with the concave part 4 and the convex part 5 on the thrust mechanism 3, so that the degree of fit of the first thrust fitting part 21 and the second thrust fitting part 31 is further improved, the contact area of the thrust fitting area of the crankshaft 2 and the thrust mechanism 3 can be better increased, and the reliability of the compressor 100 is further improved.

Further, the concave portions 4 and the convex portions 5 on the crankshaft 2 are alternately arranged in the radial direction of the crankshaft 2. That is, in the radial direction of the crankshaft 2, the convex portions 5 are provided between any adjacent two of the concave portions 4 or the concave portions 4 are provided between any adjacent two of the convex portions 5, and further, the concave portions 4 and the convex portions 5 on the thrust mechanism 3 are alternately arranged in the radial direction of the crankshaft 2, the concave portions 4 on the crankshaft 2 correspond to the convex portions 5 on the thrust mechanism 3, and the convex portions 5 on the crankshaft 2 correspond to the concave portions 4 on the thrust mechanism 3, for example, when two concave portions 4 and one convex portion 5 are provided on the crankshaft 2, the convex portions 5 are located between the two concave portions 4 in the radial direction of the crankshaft 2, the thrust mechanism 3 is provided with two convex portions 5 and one concave portion 4, and the concave portions 4 are located between the two convex portions 5 in the radial direction of the crankshaft 2.

In a specific example, the convex portion 5 and the concave portion 4 are both annular, the convex portion 5 is disposed adjacent to the central axis of the crankshaft 2 on the end surface of the crankshaft 2 facing the thrust mechanism 3, and the concave portion 4 is surrounded on the outer peripheral side of the convex portion 5; on the end face of the thrust mechanism 3 facing the crankshaft 2, a recess 4 is provided adjacent to the central axis of the crankshaft 2, and a projection 5 surrounds the outer periphery of the recess 4, thereby ensuring that the projection 5 of the crankshaft 2 can be engaged with the recess 4 of the thrust mechanism 3 and the recess 4 of the crankshaft 2 can be engaged with the projection 5 of the thrust mechanism 3.

According to some embodiments of the present invention, the compressor 100 further comprises: the frame 6 and the frame 6 are fixed in the housing 1, that is, the frame 6 is fixedly connected with the housing 1, the position of the frame 6 relative to the housing 1 is kept fixed, the crankshaft 2 extends into the frame 6 from a first end 61 of the frame 6, and the thrust mechanism 3 is fixed at a second end 62 of the frame 6, so that the assembly difficulty of the thrust mechanism 3 can be reduced well. Wherein, first end 61 and second end 62 are located the opposite sides of frame 6 respectively, and the one end that the bent axle 2 faced thrust mechanism 3 stretches into in the frame 6, and thrust mechanism 3 can be in the direction of being faced first end 61 by second end 62 better support bent axle 2 to prevent bent axle 2 from producing too big position skew in the direction of being faced second end 62 from first end 61, in order to guarantee the thrust effect of thrust mechanism 3.

In a specific example, a mounting hole 63 extending along the axial direction of the crankshaft 2, i.e., the up-down direction as shown in fig. 1, may be formed on the frame 6, the lower end of the crankshaft 2 extends into the mounting hole 63, the thrust mechanism 3 is fixed at the lower end of the frame 6 by a bolt structure and is located at the lower side of the mounting hole 63, the upper end surface of the thrust mechanism 3 forms the first thrust mating portion 21, the lower end surface of the crankshaft 2 forms the second thrust mating portion 31, and the first thrust mating portion 21 and the second thrust mating portion 31 are thrust-mated in the mounting hole 63, so as to better reduce the interference of the external environment on the thrust mating area of the crankshaft 2 and the thrust mechanism 3.

According to some embodiments of the present invention, the thrust mechanism 3 and the frame 6 are formed separately. From this for thrust mechanism 3 and frame 6 can produce simultaneously, do benefit to the production degree of difficulty that reduces thrust mechanism 3 and frame 6, and do benefit to the production efficiency who promotes thrust mechanism 3 and frame 6.

According to some embodiments of the utility model, form a plurality of lubricating-oil grooves 32 along the radial extension of thrust mechanism 3 on the terminal surface of thrust mechanism 3's orientation bent axle 2, a plurality of lubricating-oil grooves 32 are arranged along thrust mechanism 3's circumference direction interval. Therefore, the lubricant can be distributed on the end face, facing the crankshaft 2, of the thrust mechanism 3 through the lubricating oil grooves 32, so that the lubricating effect between the thrust mechanism 3 and the thrust face of the crankshaft 2 can be better improved, and the reduction of friction damage is facilitated.

According to the utility model discloses a some embodiments, thrust mechanism 3 is provided with the coating of self-lubricating characteristic on the surface with 2 contacts of bent axle, and bent axle 2 is provided with the coating of self-lubricating characteristic equally on the surface with 3 contacts of thrust mechanism to can promote bent axle 2 and 3 contact area's of thrust mechanism wear resistance betterly, do benefit to the reliability and the stability that promote compressor 100.

A compressor 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 6. It is to be understood that the following description is exemplary only, and is intended to be illustrative of the present invention and is not to be construed as limiting the invention.

Example one

As shown in fig. 1 to 4, the compressor 100 includes a housing 1, a compression mechanism, a thrust mechanism 3, and a frame 6. Specifically, the compression mechanism, the thrust mechanism 3 and the frame 6 are all arranged in the housing 1, the compression mechanism includes a crankshaft 2 extending in the up-down direction, a first thrust matching part 21 is formed at the lower end of the crankshaft 2, the frame 6 is fixed in the housing 1, a mounting hole 63 penetrating in the up-down direction is formed on the frame 6, the first end 61 of the frame 6 is arranged at the upper end of the frame 6, the second end 62 of the frame 6 is arranged at the lower end of the frame 6, the lower end of the crankshaft 2 is inserted into the mounting hole 63 through the first end 61, the thrust mechanism 3 is fixed at the lower end of the frame 6 and is arranged at the lower side of the mounting hole 63, the diameter of the thrust mechanism 3 is larger than the inner diameter of the mounting hole 63, a through hole is formed on the thrust mechanism 3, a second thrust matching part 31 is formed on the upper end face of the thrust mechanism 3, and the second thrust matching part 31 is arranged around the through hole, wherein the first thrust matching part 21 and the second thrust matching part 31 are both annular, the second thrust matching part 31 is formed as a convex part 5, the convex part 5 has a thrust surface 51, the first thrust matching part 4, the concave part 4 is formed on the concave part 41, and the central axis of the crankshaft 2 is inclined towards the central axis of the thrust surface and extends towards the central axis of the crankshaft 2.

Example two

The present embodiment is substantially the same as the first embodiment, in which the same reference numerals are used for the same components, and referring to fig. 5 and 6, the second embodiment differs from the first embodiment in that the first thrust engaging portion 21 is formed as the convex portion 5, the second thrust engaging portion 31 is formed as the concave portion 4, and the convex thrust surface 51 and the concave thrust surface 41 extend obliquely in a direction away from the central axis of the crankshaft 2 in the bottom-up direction.

A refrigeration apparatus according to an embodiment of the present invention is described below with reference to the drawings.

According to the utility model discloses refrigeration plant, include: a compressor 100.

According to the utility model discloses refrigeration plant, be provided with first thrust cooperation portion 21 on bent axle 2, thrust mechanism 3 has second thrust cooperation portion 31, first thrust cooperation portion 21 and second thrust cooperation portion 31 structure are unsmooth to agree with the structure with the thrust cooperation, can increase the area of contact in bent axle 2 and the 3 thrust cooperation areas of thrust mechanism betterly, reduce with the area of contact who avoids bent axle 2 and 3 upper groove of thrust mechanism or defects such as arch to lead to bent axle 2 and thrust mechanism 3, thereby can avoid the increase of stress in bent axle 2 and the 3 thrust cooperation areas of thrust mechanism that lead to because of the area of contact undersize, and then can reduce the damage of the increase of stress to bent axle 2 and thrust mechanism 3, do benefit to the reliability that promotes compressor 100.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. A compressor, comprising:

a housing;

the compression mechanism is arranged in the shell and provided with a crankshaft, and a first thrust matching part is arranged on the crankshaft;

the thrust mechanism is arranged in the shell and provided with a second thrust matching part, and the first thrust matching part and the second thrust matching part are in concave-convex fit structures and are in thrust matching.

2. The compressor of claim 1, wherein an end surface of the crankshaft facing the thrust mechanism is recessed to form a recess, the recess constituting the first thrust mating portion, a surface of the thrust mechanism facing the crankshaft is raised to form a protrusion, the protrusion constituting the second thrust mating portion, the protrusion fitting into the recess; or alternatively

An end face of the crankshaft facing the thrust mechanism is convex to form a convex portion constituting the first thrust mating portion, a surface of the thrust mechanism facing the crankshaft is concave to form a concave portion constituting the second thrust mating portion, and the convex portion is fitted into the concave portion.

3. The compressor of claim 2, wherein each of the recess and the projection is configured as an annular structure.

4. The compressor of claim 2, wherein the female portion has a female portion thrust surface and the male portion has a male portion thrust surface, the female portion thrust surface forming a surface-to-surface fit with the male portion thrust surface.

5. The compressor of claim 4, wherein the recess thrust face is inclined relative to a cross-section of the crankshaft; and/or

The male thrust surface is inclined with respect to a cross section of the crankshaft.

6. The compressor of claim 4, wherein each of the female thrust surface and the male thrust surface is inclined at the same angle relative to a cross-section of the crankshaft.

7. The compressor of claim 6, wherein each of the female thrust surface and the male thrust surface is inclined at an angle of no more than 15 ° relative to a cross-section of the crankshaft.

8. A compressor according to claim 2, wherein the surfaces of the crankshaft and the thrust mechanism facing each other are each formed with the recess and the projection, wherein the projection on the crankshaft is in engagement with a corresponding recess on the thrust mechanism and the recess on the crankshaft is in engagement with a corresponding projection on the thrust mechanism.

9. The compressor according to claim 8, wherein the concave portions and the convex portions on the crankshaft are alternately arranged in a radial direction of the crankshaft.

10. The compressor of claim 1, further comprising: the crankshaft extends into the frame from the first end of the frame, and the thrust mechanism is fixed at the second end of the frame.

11. A refrigeration apparatus, comprising: a compressor according to any one of claims 1 to 10.

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