CN212508689U - A kind of compressor - Google Patents

Abstract

The utility model relates to a compressor, which comprises a driving component, a main shaft with an eccentric cam, a sliding plate with an X-direction and/or Y-direction working surface at the outer edge and a shaft hole at the middle part, a guide plate with a connecting rod, a roller and a cylinder with a piston; the driving assembly is in transmission connection with the main shaft, the eccentric cam is in transmission connection with the shaft hole, the rollers are arranged on two opposite sides of the guide plate and are in contact sliding connection with the working surface, and the connecting rod is in transmission connection with the piston; when the driving assembly drives the main shaft to rotate, the eccentric cam drives the sliding plate to do sine function translation, meanwhile, the roller wheel does reciprocating linear motion on the working face, and then the guide plate drives the piston to do piston motion in the cylinder.

Description

A kind of compressor

Technical Field

The utility model relates to a compressor.

Background

The compressor in the prior art is widely applied equipment, is closely related to various fields of modern industry and life, and is general mechanical equipment playing an important role. Compressors can be used in refrigeration, engines, gas delivery, chemical processes, machinery, aquaculture, medical care, and almost every location where compressed gas is delivered or used. The conventional air compressors mainly comprise a piston type air compressor and a screw type air compressor, and although the two compressors have advantages, the two compressors have certain disadvantages. For example, the piston type air compressor mainly utilizes the rotation motion of a crankshaft to drive a piston to reciprocate to compress gas in a cylinder, and the friction noise of a bearing bush is large and the stability is poor; the screw compressor cylinder inner rotor meshing friction, rotational speed is fast, and its calorific capacity is big, and not only the wearability that requires the material is very high, and still needs a large amount of cooling lubricating oil when using, and still need carry out oil-gas separation, consequently causes screw compressor energy consumption height, with higher costs, the operation is complicated, the degree of difficulty of maintenance and maintenance is great. In order to overcome one or more defects, a certain innovative improvement is made on the compressor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of above-mentioned prior art existence, and provide a compressor, its convenient operation, reliable operation, energy-conserving high-efficient do not need oil-gas separation, and the energy consumption is lower, and the complete machine volume is minimum.

The purpose of the utility model is realized like this:

a compressor comprises a driving assembly, a main shaft with an eccentric cam, a sliding plate with an X-direction and/or Y-direction working surface on the outer edge and a shaft hole in the middle, a guide plate with a connecting rod, a roller and a cylinder with a piston; the driving assembly is in transmission connection with the main shaft, the eccentric cam is in transmission connection with the shaft hole, the rollers are arranged on two opposite sides of the guide plate and are in contact sliding connection with the working surface, and the connecting rod is in transmission connection with the piston; when the driving assembly drives the main shaft to rotate, the eccentric cam drives the sliding plate to do sine function translation, meanwhile, the roller wheel does reciprocating linear motion on the working face, and then the guide plate drives the piston to do piston motion in the cylinder.

And first bearings are arranged at two ends of the main shaft.

The guide slot has been seted up in the middle of the baffle, and the baffle length direction's both ends are equipped with linking bridge, the gyro wheel rotates to be installed on linking bridge.

The main shaft penetrates into the guide groove, the width of the guide groove is larger than the diameter of the main shaft, the length of the guide groove is larger than twice of the eccentric amount of the eccentric cam, and semicircular arcs with the diameters equivalent to the outer diameter of the main shaft are formed at two ends of the guide groove in the length direction.

The roller is always in contact sliding connection with the working surface in the X direction and/or the Y direction.

The piston is positioned in the cylinder, and the moving direction of the piston is the same as the working surface in the X direction and/or the Y direction.

And a second bearing is arranged between the eccentric cam and the shaft hole.

The utility model has the advantages that:

the utility model adopts the above structure, when drive assembly drive main shaft was rotatory, eccentric cam drive slide made the gyro wheel on the working face reciprocating linear motion to being sinusoidal function translation with Y along X, made baffle drive piston be piston motion in the cylinder then, the piston realized the compression to gas in doing the piston motion process, the compression process is high-efficient and stable.

The utility model does not need to adopt the crankshaft structure in the prior compressor technology, so the whole compressor has smaller volume, better stability and lower noise; and the inner rotor is not needed to be engaged and rubbed, cooling lubricating oil is not needed, and oil-gas separation is not needed, so that the stability of the compressor can be effectively improved, the oil-gas separation is not needed, the energy consumption is low, and the volume of the whole compressor is small.

The utility model discloses an air compression method unique, can solve the shortcoming of current various compressors, improve the efficiency of compressor. Through the utility model discloses not only can make the volume reduction of compressor effectively, weight reduction realizes miniaturization, the portability of compressor, makes convenient save material simultaneously, practices thrift the cost.

Drawings

Fig. 1 is an assembled perspective view of a first embodiment of the present invention.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is an assembled perspective view of fig. 1 with the base removed.

Fig. 4 is a front view of fig. 3.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

First embodiment

Referring to fig. 1 to 4, the compressor includes a base 100, a driving assembly, a main shaft 1 having an eccentric cam 11, a sliding plate 3 having an X-direction and/or Y-direction working surface 31 at an outer edge thereof, a shaft hole 32 at a middle portion thereof, a guide plate 4 having a connecting rod 7, a roller 6, and a cylinder 9 having a piston 8, the driving assembly may be installed outside the base 11, and other components may be installed on the base 11; the driving assembly is in transmission connection with the main shaft 1, the eccentric cam 11 is in transmission connection with the shaft hole 32, the rollers 6 are arranged on two opposite sides of the guide plate 4 and are in contact sliding connection with the working surface 31, and the connecting rod 7 is in transmission connection with the piston 8; when the driving component drives the main shaft 1 to rotate, the eccentric cam 11 drives the sliding plate 3 to do sine function translation, meanwhile, the roller 6 does reciprocating linear motion on the working surface 31, and then the guide plate 4 drives the piston to do piston motion in the cylinder.

In this embodiment, the outer edge of the sliding plate 3 has working surfaces 31 in the X direction and the Y direction (i.e. the working surfaces 31 are arranged on four sides), and the working surfaces 31 in the X direction and the Y direction are respectively connected with the two sets of guide plates 4, when the compressor works, the two sets of guide plates 4 respectively reciprocate from the mutually perpendicular directions, at this time, the sliding plate 3 can be guided alternately, and the stable operation of the whole machine is ensured. Of course, the outer edge of the sliding plate 3 may be provided with only the working surfaces 31 in the X-direction or the Y-direction (i.e. the working surfaces 31 are provided on the opposite sides), and in this case, the working surfaces 31 are connected with only one set of guide plates 4, and the reciprocating motion of the set of guide plates 4 can also be realized.

In this embodiment, the length direction of one of the guide plates 4 is set horizontally, and the length direction of the other guide plate 4 is set vertically, so that more space can be saved for arranging the air cylinder 9. At least one side of the guide plate 4 in the length direction is provided with more than one connecting rod 7, and each connecting rod 7 is in group transmission connection with a piston 8 and a cylinder 9; thus realizing compressors with various cylinder numbers: 1 cylinder, 2 cylinders, 3 cylinders, 4 cylinders, 5 cylinders, 6 cylinders, 7 cylinders, 9 cylinders, 10 cylinders, 11 cylinders, or 12 cylinders, etc. In addition, a double-array eccentric cam 11 is preferably arranged on the main shaft 1 (the eccentric protrusion directions of two adjacent eccentric cams 11 are opposite), so that the vibration of the whole machine can be effectively reduced.

The driving assembly can be preferably an ordinary motor, the piston 8 and the cylinder 9 are of a conventional structure, the piston 8 can make reciprocating linear motion (namely piston motion) in the cylinder 9, after the motor is started, the sliding plate 3 is driven to make sine function translation along the X direction and the Y direction (as shown in figure 4), meanwhile, the roller 6 makes reciprocating linear motion on the working surface 31, and then the guide plate 4 drives the piston to make piston motion in the cylinder, so that the working volume formed by the inner wall of the cylinder 9, a cylinder cover (not shown in the figure) and the top surface of the piston can be changed periodically.

Specifically, when the piston 8 starts moving from the cylinder head (forward movement), the displacement volume in the cylinder 9 gradually increases, and at this time, gas pushes an intake valve (not shown) connected to an intake pipe (not shown) along the intake pipe (not shown) of the cylinder 9 to enter the cylinder 9, and the intake valve closes until the displacement volume becomes maximum; when the piston 8 moves reversely, the working volume in the cylinder 9 is reduced, the gas pressure is increased, when the pressure in the cylinder 9 reaches and is slightly higher than the exhaust pressure, an exhaust valve (not shown) connected to an exhaust pipe (not shown) of the cylinder 9 is opened, the gas is discharged out of the cylinder 9, and the exhaust valve is closed until the piston moves to the limit position. When the piston 8 performs the piston motion again, the above processes are repeated, and the processes of air intake, compression and air exhaust are successively realized in the cylinder 9, namely, a compression working cycle is completed.

The prior art compressors transmit the full power of the compressor using a crankshaft, which primarily functions to change the rotational motion of the motor into a reciprocating linear motion of the piston through a connecting rod. When the crankshaft moves, alternating composite loads of tension, compression, shearing, bending and torsion are borne, the working condition is severe, and sufficient strength and rigidity as well as the wear resistance of the main journal and the crank pin are required. Therefore, the crankshaft is generally forged by No. 40, No. 45 or No. 50 high-quality carbon steel, and the cost is higher.

The utility model discloses in not using the bent axle, using the simple cooperation structure of main shaft 1 and slide 3, baffle 4 that has eccentric cam 11, main shaft 1 rotates and drives slide 3 along X to doing sinusoidal function translation with Y to drive baffle 4, connecting rod 7, piston 8 reciprocating motion back and forth. The utility model discloses a structure is comparatively simple, and the relation of connection is reliable, to simplifying the part, reduces the complete machine volume, reduces product cost, and the energy consumption is few and lead to the energy consumption lower, has positive meaning in the aspect of the reliability that improves the compressor and so on.

The connecting rod in the prior art is a connecting piece between a crankshaft and a piston, converts the rotary motion of the crankshaft into the reciprocating motion of the piston, and transmits power to the piston to do work on gas. And this compressor, because slide 3 drives baffle 4, connecting rod 7, piston 8 in proper order and makes reciprocating motion, the utility model discloses well piston structure is more succinct, makes the utility model provides a baffle 4, connecting rod 7, piston 8's movement track is comparatively simple, and baffle 4, connecting rod 7, piston 8's connection structure is also more simple, is favorable to reducing product cost, improves the reliability of compressor.

Furthermore, the bearings 2 are arranged at two ends of the main shaft 1, so that the main shaft and the base 11 can be assembled conveniently, the coaxiality is improved, the rotation friction of the main shaft 1 is reduced, and the rotation precision of the main shaft is ensured.

Furthermore, the guide groove 41 is formed in the middle of the guide plate 4, the connecting supports 5 are arranged at the two ends of the guide plate 4 in the length direction, and the roller 6 is rotatably arranged on the connecting supports 5.

Further, the main shaft 1 penetrates into the guide groove 41, the width of the guide groove 41 is larger than the diameter of the main shaft 1, the length of the guide groove 41 is larger than twice of the eccentric amount of the eccentric cam 11, and semicircular arcs with diameters equivalent to the outer diameter of the main shaft 1 are formed at two ends of the guide groove 41 in the length direction.

Further, the roller 6 is always in contact sliding connection with the working surface 31 in the X direction and/or the Y direction, so that the guide plate 4 and the support 5 can automatically center relative to the piston 8.

Further, the piston 8 is located in the cylinder 9, and the moving direction of the piston 8 is the same as the working surface 31 in the X direction and/or the Y direction.

Further, a second bearing 10 is arranged between the eccentric cam 11 and the shaft hole 32, so that the friction coefficient in the movement process is further reduced, and the rotation precision is ensured.

The utility model provides a compressor for the bent axle formula compressor among the prior art, possesses multiple advantage, and the stroke is big, and is efficient, and small noise is low, does not have lubricating oil or few lubricating oil. The utility model discloses an air compression method unique, can solve the shortcoming of current various compressors, improve the efficiency of compressor. Through the utility model discloses not only can make the volume reduction of compressor effectively, weight reduction realizes miniaturization, the portability of compressor, makes convenient save material simultaneously, practices thrift the cost.

The above embodiments are merely preferred embodiments of the present invention, and other embodiments are also possible. Equivalent modifications or substitutions may be made by those skilled in the art without departing from the spirit of the invention, and such equivalent modifications or substitutions are intended to be included within the scope of the claims set forth herein.

Claims (7)

1. A compressor is characterized by comprising a driving component, a main shaft (1) with an eccentric cam (11), a sliding plate (3) with an X-direction working surface (31) and/or a Y-direction working surface (31) on the outer edge and a shaft hole (32) in the middle, a guide plate (4) with a connecting rod (7), a roller (6) and a cylinder (9) with a piston (8); the driving assembly is in transmission connection with the main shaft (1), the eccentric cam (11) is in transmission connection with the shaft hole (32), the rollers (6) are arranged on two opposite sides of the guide plate (4) and are in contact sliding connection with the working surface (31), and the connecting rod (7) is in transmission connection with the piston (8); when the driving component drives the main shaft (1) to rotate, the eccentric cam (11) drives the sliding plate (3) to do sine function translation, meanwhile, the roller (6) does reciprocating linear motion on the working surface (31), and then the guide plate (4) drives the piston to do piston motion in the cylinder.

2. The compressor of claim 1, wherein: and first bearings (2) are arranged at two ends of the main shaft (1).

3. The compressor of claim 1, wherein: guide slot (41) have been seted up in the middle of baffle (4), and baffle (4) length direction's both ends are equipped with linking bridge (5), gyro wheel (6) rotate to be installed on linking bridge (5).

4. A compressor according to claim 3, wherein: the main shaft (1) penetrates into the guide groove (41), the width of the guide groove (41) is larger than the diameter of the main shaft (1), the length of the guide groove (41) is larger than twice of the eccentric amount of the eccentric cam (11), and two ends of the guide groove (41) in the length direction form a semicircular arc with the diameter equivalent to the outer diameter of the main shaft (1).

5. A compressor according to claim 3, wherein: the roller (6) is always in contact sliding connection with the working surface (31) in the X direction and/or the Y direction.

6. The compressor of claim 1, wherein: the piston (8) is positioned in the cylinder (9), and the moving direction of the piston (8) is the same as the working surface (31) in the X direction and/or the Y direction.

7. The compressor of claim 1, wherein: and a second bearing (10) is arranged between the eccentric cam (11) and the shaft hole (32).

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