Novel compressor main machine head structure

Abstract

The utility model discloses a novel compressor main machine head structure which comprises a crankcase, a crankshaft disc, a connecting rod, a piston and a cylinder body. A plurality of cylinder bodies are evenly distributed on the outer circumferential face of the crankcase in the circumferential direction of the crankcase at intervals, and each cylinder body is arranged in the radial direction of the crankcase. The crankshaft disc is arranged in the crankcase and coaxially connected to the crankshaft in a sleeving mode. Connecting rods are further arranged on the outer circumferential face of the crankshaft disc in the radial direction corresponding to the positions of the cylinder bodies, one end of each connecting rod is hinged to the crankshaft disc in the circumferential direction of the crankshaft disc, a lining is further arranged at the hinged joint of the connecting rods and the crankshaft disc, and the abrasive resistance of the hinged joint is enhanced through the lining. The other end of each connecting rod is provided with a piston matched with the connecting rod, and the pistons are driven to move in the corresponding cylinder bodies in a reciprocating mode. The compressor is simple in structure, the multiple cylinder bodies are arranged at intervals in the circumferential direction, the transmission distance of the crankshaft can be effectively shortened, and therefore the size of the compressor is reduced, and the occupied area is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor technical field, concretely relates to a novel compressor host head structure. BACKGROUND

[0002] A compressor is a device for compressing gas. The structure of an air compressor is similar to that of a water pump. Most air compressors are reciprocating piston type, rotary vane or rotary screw. In use, the air compressor needs to ensure its stable use, so as to realize the inlet and outlet of gas in the air compressor and increase the stability in use.

[0003] The working principle of the reciprocating piston type compressor: the motor drives the rotation of the crankshaft, and the piston is driven to reciprocate in the cylinder through the connecting rod, causing the periodic change of the cylinder volume, so that the pressure in the cylinder changes periodically. Due to the change of the pressure in the cylinder, the gas enters the cylinder through the inlet valve, and in the compression stroke, the cylinder volume is reduced, and the compressed gas is output through the exhaust valve.

[0004] However, most of the compressors on the market currently adopt single-cylinder drive or multi-cylinder drive. Among them, the multi-cylinder drive adopts an overall arrangement along the axial direction of the crankshaft, which results in a large volume and a large occupied area of the compressor, and is not convenient to move. In addition, when the connecting rod drives the piston to reciprocate in the cylinder, the connecting end of the connecting rod is worn to a high degree, which causes damage to the connecting rod and seriously affects the working efficiency of the compressor. Therefore, the above problems need to be solved. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to provide a novel compressor host head structure, which is simple in structure, adopts a plurality of cylinder bodies arranged circumferentially and spaced apart, can effectively reduce the transmission distance of the crankshaft, and thus realizes the reduction of the volume of the compressor and reduces the occupied area.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme: a novel compressor host head structure of the utility model, the innovation point of which is that it comprises a crankcase, a crank disc, a connecting rod, a piston and a cylinder body; a plurality of cylinder bodies are arranged on the outer circumferential surface of the crankcase along the circumferential direction and spaced apart, and each cylinder body is arranged along the radial direction of the crankcase; the crank disc is arranged in the crankcase and coaxially connected to the crankshaft; a connecting rod is arranged along the radial direction at the position of each cylinder body on the outer circumferential surface of the crank disc; one end of each connecting rod is hingedly connected to the crank disc along the circumferential direction, and a bushing is arranged at the hinged connection between the two, and the bushing is used to enhance the wear resistance of the hinged connection; the other end of each connecting rod is provided with a piston matched therewith, and the piston is driven to reciprocate in the corresponding cylinder body;

[0007] A connecting plate is fixed on the side of each cylinder body, and each cylinder body is fixed to the outer circumferential surface of the crankcase at a corresponding position by screwing through the connecting plate, and is sealed to the inside of the crankcase, and the reciprocating movement of the connecting rod and the piston rod in the corresponding cylinder body is ensured not to interfere with each other.

[0008] A boss and a pin shaft are further included, a circular boss is further arranged at one end of each connecting rod, and each boss is integrally formed with the corresponding connecting rod; a hinged groove matched with the boss is further embedded in the inside of the crank disc at a corresponding position relative to each hinged connection, and each hinged groove extends out of the outer circumferential surface of the crank disc at a corresponding position, and a plug hole matched with the pin shaft is further coaxially embedded in the front surface of the crank disc at a position corresponding to each hinged groove; a pin hole matched with the pin shaft is further coaxially and perpendicularly arranged on the surface of each boss, and one end of each connecting rod is coaxially inserted into the corresponding hinged groove of the crank disc through the boss, so that each connecting rod is hingedly connected to the crank disc around the circumference thereof through the coaxial insertion and cooperation of the pin shaft, the plug hole and the pin hole.

[0009] The cross section of each bushing is T-shaped, the small-diameter end of each bushing is coaxially sleeved on the corresponding pin shaft, and the large-diameter end of each bushing abuts against a corresponding position on the front surface of the crank disc; a plurality of rolling balls are uniformly and spacedly arranged on the outer circumferential surface of the small-diameter end of each bushing along the circumferential direction thereof, and each rolling ball is movably arranged on the outer circumferential surface of the corresponding bushing, so as to enhance the wear resistance of the hinged connection while ensuring that the movement of the corresponding connecting rod is not affected.

[0010] Preferably, the hinged connection between each connecting rod and the crank disc is axially parallel to the central axis of the crankshaft.

[0011] Preferably, a semicircular pole lug is further symmetrically arranged on the outer circumferential surface of the crank disc relative to each hinged connection, each adjacent pair of pole lugs is arranged on the front and rear sides of the corresponding connecting rod, and each pole lug is coaxially arranged with the corresponding pin shaft and integrally formed with the crank disc, so as to increase the strength of the connection between the connecting rod and the crank disc through the pole lug.

[0012] Preferably, a wear-resistant pad is further included, and a wear-resistant pad is further fixed on the inner surface of each pole lug, and each wear-resistant pad is ensured not to interfere with the movement of the corresponding connecting rod, and the wear resistance of the hinged connection is enhanced through the wear-resistant pad.

[0013] Preferably, a rolling bearing is further coaxially sleeved between the crank disc and the crankshaft, and the transmission accuracy and rotation accuracy of the crankshaft are ensured through the rolling bearing.

[0014] Preferably, an intake valve and an exhaust valve are respectively and sealingly connected to the outer circumferential surface of each cylinder away from the crankcase, and each intake valve and corresponding exhaust valve are oppositely arranged.

[0015] Preferably, a heat sink is coaxially sleeved on the outer circumferential surface of each cylinder in a spiral shape, and each heat sink is arranged between the connecting plate and the intake valve, thereby dissipating heat through the heat sink.

[0016] The beneficial effects of the present application are as follows:

[0017] (1) The present application has a simple structure, a plurality of cylinder bodies are arranged circumferentially and spaced apart, which can effectively reduce the transmission distance of the crankshaft, thereby realizing the size reduction of the compressor and reducing the occupied area.

[0018] (2) The present application effectively reduces the transmission connection wear of the connecting rod by setting the bushing, thereby improving the service life. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0020] Figure 1 It is a structural schematic view of the novel compressor main head structure of the present application.

[0021] Figure 2 It is a structural schematic view of the connecting rod part. Figure 1

[0022] It is a structural schematic view of the bushing. Figure 3 Figure 1 Among them, 1-crankshaft disc; 2-tab; 3-rolling bearing; 4-connecting rod; 5-piston; 6-cylinder; 7-intake valve; 8-heat sink; 9-connecting plate; 10-boss; 11-pin hole; 12-pin shaft; 13-bushing; 14-rolling ball.

[0023] DETAILED DESCRIPTION The technical scheme of the present application will be described clearly and completely through specific embodiments.

[0024] The present application is a novel compressor main head structure, which comprises a crankcase, a crankshaft disc 1, a connecting rod 4, a piston 5 and a cylinder 6.

[0025] Figures 1-3 ​​As shown in the drawings, a plurality of cylinder bodies 6 are arranged on the outer circumferential surface of the crankcase at equal intervals along the circumferential direction thereof, and each cylinder body 6 is arranged along the radial direction of the crankcase; the crank disc 1 is arranged in the crankcase and coaxially sleeved on the crankshaft; a connecting rod 4 is further arranged on the outer circumferential surface of the crank disc 1 relative to the position of each cylinder body 6 along the radial direction, one end of each connecting rod 4 is hingedly connected to the crank disc 1 along the circumferential direction thereof, and a bushing 13 is further arranged at the hinged connection position to enhance the wear resistance of the hinged connection position; the other end of each connecting rod 4 is provided with a piston 5 matched therewith, and the piston 5 is driven to reciprocate in the corresponding cylinder body 6. The hinged connection position of each connecting rod 4 and the crank disc 1 is axially parallel to the central axis of the crankshaft.

[0026] As shown in the drawings, Figure 1 a connecting plate 9 is further fixedly arranged on the side of each cylinder body 6 close to the crankcase, each cylinder body 6 is fixedly screwed to the corresponding position on the outer circumferential surface of the crankcase through the connecting plate 9, and is sealingly connected to the inside of the crankcase, and it is necessary to ensure that the reciprocating motion of the connecting rod 4 and the piston 5 in the corresponding cylinder body 6 is not interfered.

[0027] The utility model discloses a circular boss 10 is further arranged on one end of each connecting rod 4 close to the crank disc 1, and each boss 10 is integrally formed with the corresponding connecting rod 4; as shown in the drawings, Figure 1 , Figure 2 a hinged groove matched with the boss 10 is further embedded in the inside of the crank disc 1 relative to each hinged connection position, each hinged groove extends out of the corresponding position on the outer circumferential surface of the crank disc 1, and a insertion hole matched with the pin shaft 12 is further coaxially embedded in the front surface of the crank disc 1 relative to each hinged groove; a pin hole 11 matched with the pin shaft 12 is further coaxially and perpendicularly arranged on the surface of each boss 10, and one end of each connecting rod 4 is coaxially inserted into the corresponding hinged groove of the crank disc 1 through the boss 10, and the coaxial insertion and cooperation of the pin shaft 12, the insertion hole and the pin hole 11 enable each connecting rod 4 to be hingedly connected to the crank disc 1 along the circumferential direction thereof.

[0028] As shown in the drawings, Figures 1-3 the cross section of each bushing 13 is T-shaped, the small-diameter end of each bushing 13 is coaxially sleeved on the corresponding pin shaft 12, and the large-diameter end of each bushing 13 abuts against the corresponding position on the front surface of the crank disc 1; a plurality of rolling balls 14 are uniformly and intervally arranged on the outer circumferential surface of the small-diameter end of each bushing 13 along the circumferential direction thereof, and each rolling ball 14 is movably arranged on the outer circumferential surface of the corresponding bushing 13, thereby enhancing the wear resistance of the hinged connection position while ensuring that the movement of the corresponding connecting rod 4 is not affected.

[0029] As shown in the drawings, Figure 1As shown, the outer circumferential surface of the crankshaft disc 1 is also provided with a semicircular lug 2 in front of and behind each hinged connection, and each adjacent two lugs 2 are arranged on the front and rear sides of the corresponding connecting rod 4, and are coaxially arranged with the corresponding pin shaft 12, and are integrally formed with the crankshaft disc 1, thereby increasing the strength of the connecting rod 4 and the crankshaft disc 1 at the connection.

[0030] The inner surface of each lug 2 is also provided with a wear-resistant pad, and each wear-resistant pad does not interfere with the movement of the corresponding connecting rod 4, and the wear-resistant pad enhances the wear resistance of the hinged connection.

[0031] As shown in the drawings, Figure 1 The rolling bearing 3 is coaxially connected between the crankshaft disc 1 and the crankshaft, and the rolling bearing 3 ensures the transmission accuracy and rotation accuracy of the crankshaft.

[0032] As shown in the drawings, Figure 1 The outer circumferential surface of each cylinder body 6 is also provided with an intake valve 7 and an exhaust valve 7, and each intake valve 7 and the corresponding exhaust valve are arranged opposite to each other.

[0033] As shown in the drawings, Figure 1 The outer circumferential surface of each cylinder body 6 is also provided with a heat sink 8, and each heat sink 8 is arranged between the connecting plate 9 and the intake valve 7, thereby dissipating heat through the heat sink 8.

[0034] The beneficial effects of the utility model are:

[0035] (1) The utility model has the advantages of simple structure, and the plurality of cylinder bodies 6 are arranged in the circumferential direction, which can effectively reduce the transmission distance of the crankshaft, thereby realizing the size reduction of the compressor and reducing the occupied area.

[0036] (2) The utility model sets the bushing 13, which effectively reduces the transmission connection wear of the connecting rod 4, thereby prolonging the service life.

[0037] The above-described embodiments are only preferred embodiments of the utility model, and do not limit the design concept and scope of the utility model. Various modifications and improvements of the technical scheme of the utility model made by ordinary engineering technicians in the art shall fall within the protection scope of the utility model. The technical content claimed by the utility model has been fully recorded in the technical requirements.

Claims

1. A novel compressor head structure, characterized by: The application relates to a piston engine, which comprises a crankcase, a crank disc, connecting rods, pistons and cylinder bodies; a plurality of cylinder bodies are arranged on the outer circumferential surface of the crankcase and are uniformly distributed along the circumferential direction of the crankcase, and each cylinder body is arranged along the radial direction of the crankcase; the crank disc is arranged in the crankcase and coaxially sleeved on the crankshaft; a connecting rod is arranged on the outer circumferential surface of the crank disc and radially relative to the position of each cylinder body; one end of each connecting rod is hingedly connected to the crank disc along the circumferential direction of the crank disc, a bushing is arranged at the hinged connection position, and the wear resistance of the hinged connection position is enhanced through the bushing; the other end of each connecting rod is provided with a piston matched therewith, and the piston is driven to reciprocate in the corresponding cylinder body. A connecting plate is fixedly arranged on one side of each cylinder body relative to the crankcase; each cylinder body is fixedly connected to the corresponding position of the outer circumferential surface of the crankcase through the connecting plate, is sealingly connected to the inner part of the crankcase, and ensures that the reciprocating movement of the connecting rod and the piston rod in the corresponding cylinder body is not interfered. A boss and a pin shaft are further arranged; a circular boss is arranged at one end of each connecting rod relative to the crank disc, and each boss is integrally formed with the corresponding connecting rod; a hinged groove matched with the boss is embedded in the inner part of the crank disc relative to each hinged connection position, each hinged groove extends out of the corresponding position of the outer circumferential surface of the crank disc, and a plug hole matched with the pin shaft is coaxially embedded in the front surface of the crank disc relative to each hinged groove; a pin hole matched with the pin shaft is coaxially and vertically arranged on the surface of each boss, one end of each connecting rod is coaxially inserted into the corresponding hinged groove of the crank disc through the boss, and each connecting rod is hingedly connected to the crank disc along the circumferential direction of the crank disc through the coaxial insertion and cooperation of the pin shaft, the plug hole and the pin hole. The cross section of each bushing is T-shaped, the small-diameter end of the bushing is coaxially sleeved on the corresponding pin shaft, and the large-diameter end of the bushing abuts against the corresponding position of the front surface of the crank disc; a plurality of rolling balls are uniformly and interval distributed on the outer circumferential surface of the small-diameter end of each bushing along the circumferential direction of the bushing, and each rolling ball is movably arranged on the outer circumferential surface of the corresponding bushing, so that the wear resistance of the hinged connection position is enhanced, and the movement of the corresponding connecting rod is not affected.

2. A novel compressor main head structure according to claim 1, characterized in that: The axial direction of the hinged connection position of each connecting rod and the crank disc is parallel to the central axis of the crankshaft.

3. A novel compressor main head structure according to claim 1, characterized in that: A semicircular pole lug is symmetrically arranged on the outer circumferential surface of the crank disc relative to each hinged connection position, each adjacent two pole lugs are arranged on the front and back sides of the corresponding connecting rod, and each pole lug is coaxially arranged with the corresponding pin shaft and integrally formed with the crank disc, so that the strength of the connecting rod and the crank disc at the connection position is increased through the pole lug.

4. A novel compressor main head structure according to claim 3, characterized in that: A wear-resistant pad is further arranged; a wear-resistant pad is fixedly arranged on the inner surface of each pole lug, and the movement of each wear-resistant pad relative to the corresponding connecting rod is not interfered, and the wear resistance of the hinged connection position is enhanced through the wear-resistant pad.

5. A novel compressor main head structure according to claim 1, characterized in that: Rolling bearings are coaxially sleeved between the crankshaft disc and the crankshaft, and the transmission accuracy and rotation accuracy of the crankshaft are ensured through the rolling bearings.

6. A novel compressor main head structure according to claim 1, characterized in that: An intake valve and an exhaust valve are respectively and sealingly connected to the outer circumferential surface of each cylinder body away from the crankcase, and each intake valve and the corresponding exhaust valve are oppositely arranged.

7. A novel compressor main head structure according to claim 6, characterized in that: A heat dissipation fin is coaxially sleeved on the outer circumferential surface of each cylinder body in a spiral shape, and each heat dissipation fin is arranged between the connecting plate and the intake valve, so that heat dissipation is performed through the heat dissipation fin.

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