CN217813845U

CN217813845U - Crankcase of air compressor

Info

Publication number: CN217813845U
Application number: CN202221610816.2U
Authority: CN
Inventors: 林帮法; 谢小勇; 林新建
Original assignee: ZHEJIANG AUARITA PNEUMATIC TOOLS LLC
Current assignee: ZHEJIANG AUARITA PNEUMATIC TOOLS LLC
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-11-15
Anticipated expiration: 2032-06-24

Abstract

The utility model provides a crankcase of air compressor machine belongs to air compressor machine technical field. It has solved the problem that the crankcase weight of current air compressor machine is heavy, manufacturing cost is high. This crankcase of air compressor machine, including dust cover, the main tank body and the fan housing that connect gradually from inside to outside, fan housing and dust cover are made by the plastics material, and the main tank body is made by metal material, and the fan housing has cover body one, and the one end and the main tank body of cover body one are connected, the dust cover has cover body two, and the one end and the main tank body of cover body two are connected. The first cover body and the second cover body in the structure both form the inner space of the crankcase, the size of the main box body is obviously reduced, the materials made of metal materials in the crankcase are obviously reduced, the fan cover and the dust cover are made of plastic materials, the weight of the crankcase is obviously reduced, the manufacturing cost of the crankcase is obviously reduced, and the lightweight design is realized while certain structural strength is ensured for the crankcase.

Description

Crankcase of air compressor

Technical Field

The utility model belongs to the technical field of the air compressor machine, especially a crankcase of air compressor machine.

Background

The air compressor is called as an air compressor for short, the air compressor is developed rapidly in recent years and widely applied to various industries, and particularly the variable frequency air compressor is popular with wide users due to the characteristics of energy conservation, small mechanical impact, low failure rate and the like. The crankcase is an important component of the air compressor, and a cooling fan, a crankshaft, a connecting rod and other parts are arranged in the crankcase.

At present, current air compressor machine crankcase generally includes crankcase main part and fan housing, the equal uncovered setting of inside and outside end of crankcase main part, the fan housing is the platykurtic and connects the outer port in the crankcase main part, the inner of crankcase main part supports mutually with the motor and leans on, the crankcase main part mainly adopts metal material to make, the fan housing adopts metal or plastics material to make, because the crankcase main part structure of crankcase main part for the crankcase, metal material's crankcase main part occupies more than 90% of the whole volume of crankcase, make the weight of crankcase heavier, high in manufacturing cost, and then make the holistic weight of air compressor machine heavier, high in manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a there is above-mentioned problem to current technique, has proposed the crankcase of an air compressor machine, the utility model aims to solve the technical problem that: how to solve the problem that the crankcase weight is heavy, manufacturing cost is high.

The purpose of the utility model can be realized by the following technical proposal:

the crankcase of the air compressor is characterized by comprising a dust cover, a main box body and a fan cover which are sequentially connected from inside to outside, wherein the fan cover and the dust cover are both made of plastic materials;

or the fan cover and the dust cover are both made of plastic materials, the main box body is made of metal materials, the fan cover is provided with a first cover body, and one end of the first cover body is connected with the main box body;

or the fan cover and the dust cover are both made of plastic materials, the main box body is made of metal materials, and the dust cover is provided with a second cover body.

The first scheme is as follows: the crankcase comprises a fan cover with a first cover body, a main box body and a dust cover with a second cover body, wherein the main box body is of a main body structure of the crankcase, the main box body is made of metal materials, so that the main body structure of the crankcase has higher structural strength, and the first cover body and the second cover body in the structure form an internal space of the crankcase; in addition, the dust cover setting of plastics material is between motor and the main tank body in the air compressor machine for the main tank body and the motor of metal material realize electrical isolation, have better insulating effect, avoid metal piece and large granule impurity to adsorb on the motor.

The second scheme is as follows: the crankcase comprises a fan cover with a first cover body, a main case body and a dust cover, wherein the main case body is a main body structure of the crankcase and is made of metal materials, so that the main body structure of the crankcase has higher structural strength; in addition, the dust cover setting of plastics material is between motor and the main tank body in the air compressor machine for the main tank body and the motor of metal material realize electrical isolation, have better insulating effect, avoid metal piece and large granule impurity to adsorb on the motor.

In the third scheme: the crankcase comprises a fan cover, a main box body and a dust cover with a second cover body, wherein the main box body is of a main body structure of the crankcase and is made of metal materials, so that the main body structure of the crankcase has higher structural strength, and the second cover body in the structure forms an inner space of the crankcase; in addition, the dust cover setting of plastics material is between motor and the main tank body in the air compressor machine for the main tank body and the motor of metal material realize electrical isolation, have better insulating effect, avoid metal piece and large granule impurity to adsorb on the motor.

In the above crankcase of the air compressor, the top end of the main case body is provided with a mounting seat for mounting the valve plate. The existing air compressor comprises a valve plate and a cylinder cover, the valve plate is fixed on a mounting seat, the cylinder cover is fixed on the valve plate, the mounting seat made of metal is high in structural strength, and the mounting seat has a good supporting effect on the valve plate and the cylinder cover.

In the crankcase of the air compressor, the top end of the fan cover is provided with a first air guiding part, the top end of the dust cover is provided with a second air guiding part, the first air guiding part and the second air guiding part wrap the mounting seat, the first air guiding part and the second air guiding part are fixedly connected with the mounting seat, and air guiding channels are arranged between the first air guiding part and the mounting seat and between the second air guiding part and the mounting seat. A valve plate of the air compressor is fixed on the mounting seat, and the air guide channel can guide air to blow on the valve plate to dissipate heat and cool the valve plate; in addition, the first air guiding part and the second air guiding part are both made of plastics, the mounting seat is made of metal, the first air guiding part and the second air guiding part wrap the mounting seat to achieve the effect of protecting the mounting seat, and the corrosion resistant effect of the mounting seat is improved after the mounting seat made of metal is wrapped.

In the above-mentioned crankcase of air compressor machine, set up the inside heat dissipation wind channel of a plurality of intercommunication crankcase on the mount pad, this air compressor machine is still including setting up the fan in the crankcase, the heat dissipation wind channel is located the oblique top of fan. When the air compressor works, the fan rotates, and when the fan cools the motor in a heat dissipation manner, part of air is blown to the valve plate through the heat dissipation air duct, so that the heat dissipation and cooling effects on the valve plate are improved, and the quick heat dissipation and cooling of the valve plate are realized.

In the above crankcase of the air compressor, the bottom of the main case body is provided with at least two supporting foot plates. The supporting foot plate is convenient to fix the crankcase on the gas storage tank, and the supporting foot plate made of metal has good bearing performance, so that the supporting foot plate can stably bear the weight of the crankcase.

In the above crankcase of the air compressor, the air cover and the dust cover are both fastened to the main case body, and at least part of the main case body is covered by the air cover and the dust cover. After the main box body is partially or completely wrapped after the dust cover and the air cover are buckled, the main box body made of metal materials is wrapped, the effect of protecting the main box body is achieved, and the metal main box body is not prone to corrosion.

In the above-mentioned crankcase of air compressor machine, the outer end of cover body one has the joint board, the joint hole has all been seted up on the joint board, the buckle has on the lateral wall of the main tank body, buckle and joint board one-to-one, the buckle card is downthehole at corresponding joint. The fan housing is connected with the main box body in a clamping mode, and convenience of mounting and dismounting the fan housing on the main box body is improved.

In the above crankcase of an air compressor, a plurality of connecting arms are arranged on the main case body, clamping grooves or mounting holes are formed in the outer side wall of the second cover body, the connecting arms correspond to the clamping grooves or the mounting holes one to one, and the connecting arms penetrate through the corresponding clamping grooves or the mounting holes. When the dust cover is installed, the clamping groove or the mounting hole is aligned to the connecting arm, then the dust cover is horizontally moved to be close to the main box body, the connecting arm penetrates through the corresponding clamping groove or the corresponding mounting hole, the second cover body cannot rotate relative to the circumferential direction of the main box body, the circumferential positioning of the dust cover is achieved, and the dust cover is convenient to install and detach on the main box body.

In the above-mentioned crankcase of an air compressor machine, this air compressor machine has two crankcase, and this air compressor machine includes the motor, the both ends of motor are located corresponding cover body two respectively, and the dust cover leans on with the motor counterbalance, and the linking arm one-to-one on two main tank bodies is connected through the fastener between two corresponding linking arms. The end part of the motor is covered by the second cover body, so that metal scraps and large-particle impurities are adsorbed on the shell at the end part of the motor, the motor compresses the dust cover on the main box body, the two dust covers are clamped tightly by the fastener, and the crankcase, the motor and the crankcase are stably and firmly connected.

In the above-mentioned crankcase of air compressor machine, cover body one has installation department one, the dust cover has installation department two, installation department one and installation department two pass through the screw fixation.

Compared with the prior art, the utility model discloses an air compressor machine has following advantage: compared with the prior art, the volume of the main box body is obviously reduced, the material of metal materials in the crankcase is obviously reduced, the fan cover and the dust cover are both made of plastic materials, the weight of the crankcase is obviously reduced, the manufacturing cost of the crankcase is obviously reduced, and the lightweight design is realized while certain structural strength of the crankcase is ensured; in addition, the dust cover setting of plastics material is between motor and the main tank body in the air compressor machine for the main tank body and the motor of metal material realize electrical isolation, have better insulating effect, avoid metal piece and large granule impurity to adsorb on the motor.

Drawings

Fig. 1 is a schematic perspective view of embodiment 1 of the present invention.

Fig. 2 is a partial perspective view of the present invention.

Fig. 3 is one of the schematic views of the partial explosion structure of the present invention.

Fig. 4 is a schematic sectional structure diagram of embodiment 1 of the present invention.

Fig. 5 is a second schematic view of a partial explosion structure according to embodiment 1 of the present invention.

Fig. 6 is a schematic sectional structure of the present invention.

Fig. 7 is a second partial perspective view of the present invention.

Fig. 8 is a third partial perspective view of the present invention.

Fig. 9 is a third schematic diagram of the local explosion structure of the present invention.

In the figure, 1, dust cover; 10. a second cover body; 11. a second air guiding part; 12. a card slot; 13. a second mounting part; 14. mounting holes; 2. a main box body; 20. a mounting seat; 21. a heat dissipation air duct; 22. a support leg plate; 23. buckling; 24. a connecting arm; 240. a connecting portion; 3. a fan housing; 30. a first cover body; 31. a first air guiding part; 32. a clamping and connecting plate; 33. a clamping hole; 34. a first mounting part; 4. a fan; 5. a motor; 6. a fastener; 7. and (4) screws.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example 1

As shown in fig. 1 to 3, the crankcase of the air compressor comprises a motor 5 and two crankcases, the motor 5 is arranged between the two crankcases, the crankcases comprise dust covers 1, a main case 2 and a dust cover 3 which are sequentially connected from inside to outside, the dust cover 3 and the dust covers 1 are both made of plastic materials, the main case 2 is made of metal materials, the dust cover 3 is provided with a first cover body 30, the first cover body 30 is connected with the main case 2, the dust cover 1 is provided with a second cover body 10, the top end of the main case 2 is provided with a mounting seat 20 for mounting a valve plate, the main case 2 is a main body structure of the crankcases, the main case 2 is made of metal materials, the main body structure of the crankcases 2 is made of the plastic materials, the main body structure of the crankcases has higher structural strength, the first cover body 30 and the second cover body 10 in the structure form an internal space of the crankcases, compared with the prior art, the volume of the main case 2 is remarkably reduced, the materials of the metal materials in the crankcases are reduced, the wind covers 3 and the dust covers 1 are both made of the plastic materials, the crankcase, the weight of the crankcases is reduced, the manufacturing cost of the crankcase is reduced, the valve plate in the air compressor is fixed on the mounting seat 20, the valve plate, the cylinder cover is fixed on the cylinder cover, the cylinder cover 20, the cylinder cover has a high structural strength, and the cylinder cover structure can support the crankcase, and can ensure a certain light weight of the crankcase, and can be realized. The bottom of the main box body 2 is provided with at least two supporting foot plates 22, the supporting foot plates 22 are convenient for the crankcase to be fixed on the gas storage tank, and the supporting foot plates 22 made of metal materials have good bearing performance, so that the supporting foot plates can stably bear the weight of the crankcase.

As shown in fig. 8, the top end of the fan housing 3 has a first air guiding portion 31, the top end of the dust cover 1 has a second air guiding portion 11, the first air guiding portion 31 and the second air guiding portion 11 cover the mounting base 20, the first air guiding portion 31 and the second air guiding portion 11 are both fixedly connected to the mounting base 20, and the air guiding passages 8 are respectively provided between the first air guiding portion 31 and the mounting base 20 and between the second air guiding portion 11 and the mounting base 20. A valve plate of the air compressor is fixed on the mounting base 20, and the air guide channel can guide air to blow on the valve plate to dissipate heat and cool the valve plate; the first air guiding part 31 and the second air guiding part 11 are made of plastic materials, the mounting seat 20 is made of metal materials, the first air guiding part 31 and the second air guiding part 11 wrap the mounting seat 20 to achieve the effect of protecting the mounting seat 20, and the corrosion resisting effect of the mounting seat 20 is improved after the mounting seat 20 made of metal materials is wrapped.

As shown in fig. 7, the mounting base 20 is provided with a plurality of heat dissipation air ducts 21 communicating with the inside of the crankcase, the air compressor further includes a fan 4 disposed in the crankcase, and the heat dissipation air ducts 21 are located obliquely above the fan 4. When the air compressor machine during operation, fan 4 rotated, and fan 4 cooled down the heat dissipation to motor 5, partly wind blows on the valve plate through heat dissipation wind channel 21, improves the heat dissipation cooling effect to the valve plate, realizes the quick heat dissipation cooling of valve plate.

As shown in fig. 1, 2 and 3, the wind shield 3 and the dust cover 1 are fastened to the main case 2, the wind shield 3 and the dust cover 1 at least partially cover the main case 2, the first cover 30 has a first mounting portion 34, the dust cover 1 has a second mounting portion 13, and the first mounting portion 34 and the second mounting portion 13 are fixed by screws 7. In this embodiment, the fan housing 3 and the dust cover 1 wrap the main box body 2 except the bottom, so that the main box body 2 made of metal is wrapped, the effect of protecting the main box body 2 is achieved, and the metal main box body 2 is not easily corroded.

As shown in fig. 2 and 3, the main case 2 is provided with a plurality of connecting arms 24, the second cover body 10 is provided with a plurality of mounting holes 14, the connecting arms 24 correspond to the mounting holes 14 one to one, the connecting arms 24 penetrate through the corresponding mounting holes 14, when the dust cover 1 is mounted, the mounting holes 14 are aligned to the connecting arms 24, then the dust cover 1 is horizontally moved to be close to the main case body 2, so that the connecting arms 24 penetrate through the corresponding mounting holes 14, the second cover body 10 cannot rotate circumferentially relative to the main case body 2, circumferential positioning of the dust cover 1 is achieved, and the dust cover 1 is convenient to mount and dismount on the main case body 2.

As shown in fig. 1 and 6, the motor 5 is located between the two dust covers 1, two ends of the motor 5 are respectively located in the corresponding second cover bodies 10, and the second cover bodies 10 cover the ends of the motor 5, so that metal debris and large particle impurities are adsorbed on the housing at the ends of the motor 5; the dust cover 1 is abutted against the motor 5, the connecting arms 24 on the two main box bodies 2 correspond to each other one by one, the two corresponding connecting arms 24 are connected through the fasteners 6, the motor 5 compresses the dust cover 1 on the main box bodies 2, the two dust covers 1 clamp the motor 5 tightly due to the arrangement of the fasteners 6, and the crankcase, the motor 5 and the crankcase are connected stably and firmly.

Example 2

This embodiment is basically the same as the above embodiment 1 except that: the air cover 3 and the dust cover 1 are both made of plastic materials, the main box body 2 is made of metal materials, the air cover 3 is provided with a first annular cover body 30, one end of the first cover body 30 is connected with the main box body 2, and the dust cover 1 in the embodiment is not provided with a second cover body 10.

Example 3

This embodiment is substantially the same as embodiment 1 described above, except that: the fan housing 3 and the dust cover 1 are both made of plastic materials, the main box body 2 is made of metal materials, the dust cover 1 is provided with a second annular cover body 10, one end of the second cover body 10 is connected with the main box body 2, and the fan housing 3 in the embodiment is not provided with the first cover body 30.

Example 4

This embodiment is substantially the same as embodiment 1 described above, except that: as shown in fig. 6 and 7, the outer end of the first cover body 30 is provided with a plurality of clamping plates 32, each clamping plate 32 is provided with a clamping hole 33, the outer side wall of the main box body 2 is provided with a plurality of buckles 23, the buckles 23 correspond to the clamping plates 32 one by one, the buckles 23 are clamped in the corresponding clamping holes 33, and the fan cover 3 is connected with the main box body 2 in a clamping manner. Have a plurality of linking arm 24 on the main tank body 2, a plurality of draw-in groove 12 has been seted up on the lateral wall of the cover body two 10, linking arm 24 and draw-in groove 12 one-to-one, linking arm 24 wears to establish in corresponding draw-in groove 12, during the installation of dust cover 1, aim at linking arm 24 with draw-in groove 12, then be close to main tank body 2 with the translation of dust cover 1, make linking arm 24 pass corresponding draw-in groove 12 and set up, cover body two 10 can not be for 2 circumferential direction of main tank body, realize the circumferential location of dust cover 1, dust cover 1 is installed and is dismantled the convenience on main tank body 2. Each connecting arm 24 has a connecting portion 240 thereon, and two corresponding connecting portions 240 are connected to each other by a fastener 6.

Example 5

This embodiment is substantially the same as embodiment 1 except that:

as shown in fig. 8 and 9, the dust cover 1 and the fan housing 3 are fastened to wrap the main housing 2, the first cover 30 has a first mounting portion 34, the dust cover 1 has a second mounting portion 13, and the first mounting portion 34 and the second mounting portion 13 are fixed to the main housing 2 by screws 7. The main box body 2 is wrapped after the dust cover 1 and the fan cover 3 are buckled, so that the main box body 2 made of metal is wrapped, the effect of protecting the main box body 2 is achieved, and the metal main box body 2 is not easy to corrode.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a crankcase of air compressor machine, its characterized in that includes dust cover (1), the main tank body (2) and the wind shield (3) that connect gradually from inside to outside, wind shield (3) and dust cover (1) are made by the plastics material, the main tank body (2) are made by metal material, wind shield (3) have cover body one (30) or/and dust cover (1) have cover body two (10), cover body one (30) are connected with the main tank body (2).

2. The crankcase of an air compressor according to claim 1, wherein the top end of the main casing (2) has a mounting seat (20) for mounting the valve plate.

3. The crankcase of an air compressor according to claim 2, wherein the top end of the fan housing (3) has a first air guiding portion (31), the top end of the dust cover (1) has a second air guiding portion (11), the first air guiding portion (31) and the second air guiding portion (11) wrap the mounting seat (20), the first air guiding portion (31) and the second air guiding portion (11) are both fixedly connected with the mounting seat (20), and air guiding channels (8) are respectively arranged between the first air guiding portion (31) and the mounting seat (20) and between the second air guiding portion (11) and the mounting seat (20).

4. The crankcase of an air compressor according to claim 2, wherein the mounting base (20) is provided with a plurality of heat dissipation air ducts (21) communicating with the inside of the crankcase, the air compressor further comprises a fan (4) disposed in the crankcase, and the heat dissipation air ducts (21) are located obliquely above the fan (4).

5. The crankcase of an air compressor according to claim 1 or 2, wherein the bottom of the main casing (2) has at least two support feet (22).

6. The crankcase of an air compressor according to claim 1, wherein the hood (3) and the dust cover (1) cover at least a portion of the main case (2).

7. The crankcase of an air compressor according to claim 6, wherein a clamping plate (32) is provided at an outer end of the first cover body (30), clamping holes (33) are formed in the clamping plate (32), a plurality of buckles (23) are provided on an outer side wall of the main case (2), the buckles (23) correspond to the clamping plates (32) one to one, and the buckles (23) are clamped in the corresponding clamping holes (33).

8. The crankcase of an air compressor according to claim 6, wherein the main case (2) is provided with a plurality of connecting arms (24), the second cover body (10) is provided with a plurality of clamping slots (12) or mounting holes (14), the connecting arms (24) are in one-to-one correspondence with the clamping slots (12) or the mounting holes (14), and the connecting arms (24) are inserted into the corresponding clamping slots (12) or the mounting holes (14).

9. The crankcase of an air compressor according to claim 8, wherein the air compressor has two crankcases, the air compressor includes a motor (5), two ends of the motor (5) are respectively located in the corresponding second cover bodies (10), the dust cover (1) abuts against the motor (5), the connecting arms (24) on the two main cases (2) are in one-to-one correspondence, and the two corresponding connecting arms (24) are connected through a fastener (6).

10. The crankcase of an air compressor according to claim 6, wherein the first cover body (30) has a first mounting portion (34), the dust cover (1) has a second mounting portion (13), and the first mounting portion (34) and the second mounting portion (13) are fixed to the main casing (2) by screws (7) or the first mounting portion (34) and the second mounting portion (13) are fixed by screws (7).