CN216110886U

CN216110886U - Novel pneumatic motor

Info

Publication number: CN216110886U
Application number: CN202122559364.1U
Authority: CN
Inventors: 陈团结
Original assignee: Quanzhou Fengze Minghong Ship Fittings Co ltd
Current assignee: Quanzhou Fengze Minghong Ship Fittings Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-03-22
Anticipated expiration: 2031-10-22

Abstract

The invention discloses a novel pneumatic motor, which comprises a front flange cover, a rear flange cover, a middle barrel, a rotor, a check ring, a bearing, an oil seal, screws, vent holes, air outlet holes, a connector and an exhaust head, wherein the front flange cover and the rear flange cover are connected with the middle barrel through the screws, the rotor is rotatably matched in the middle barrel through the bearing, the check ring and the oil seal are used for sealing the side end of the rotor, two vent holes are formed, the structure of the middle barrel is optimized through optimizing the arrangement of the middle barrel, the structure is matched with precision machining equipment, so that the pneumatic motor does not need to be formed into a double-barrel body by adding one barrel body to ensure the sealing performance of the motor, the rotor is directly installed in the middle barrel, the complete pneumatic motor can be formed by matching with the flange cover, and the production, manufacturing and use costs of the motor are saved. The crescent first air supply groove is designed on the middle cylinder structure, two axisymmetric air supply grooves are designed on a single surface, and the number of double surfaces is four, so that when gas flows in the middle cylinder, the rotor is driven to rotate efficiently.

Description

Novel pneumatic motor

Technical Field

The invention relates to the technical field of motors, in particular to a novel pneumatic motor.

Background

A pneumatic motor is also called a pneumatic motor, and means a device for converting pressure energy of compressed air into mechanical energy for rotation. Typically as a source of rotary power for more complex devices or machines. The pneumatic motors are classified by their structures into vane type pneumatic motors, piston type pneumatic motors, compact vane type pneumatic motors, and compact piston type pneumatic motors. The commonly used pneumatic motor is a volumetric pneumatic motor, which uses the volume change of a working chamber to do work, and is in the form of a vane, a piston, a gear and the like.

The existing pneumatic motor is provided with an air inlet hole and an air outlet hole, and the conventional positions between the air inlet hole and the air outlet hole are arranged at different positions, so that compressed air cannot reach corresponding balance when the rotor is driven to rotate, and the compressed air cannot be effectively discharged out of the shell to expand.

The existing pneumatic motor generally adopts a double-sleeve structure to improve the internal sealing effect, and the internal gas guiding matching structure of the pneumatic motor is often unchanged, so that the production and use cost is difficult to further reduce, and the use effect is difficult to further optimize.

Disclosure of Invention

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

The invention aims to overcome the defects and provide a novel pneumatic motor.

In order to achieve the purpose, the technical solution of the invention is as follows:

a novel pneumatic motor comprises a front flange cover, a rear flange cover, a middle barrel, a rotor, a check ring, a bearing, an oil seal, screws, vent holes, a connector and an exhaust head, wherein the front flange cover and the rear flange cover are connected with the middle barrel through the screws, the rotor is rotatably matched in the middle barrel through the bearing, the check ring and the oil seal are used for sealing the side ends of the rotor, two vent holes are arranged on the rear flange cover in an axial symmetry manner, the vent holes penetrate through the central position of the side surface of the middle barrel, the vent holes are in threaded connection with the exhaust head, the vent holes penetrate through the rear flange cover, the connector is in threaded connection with the vent holes, the middle barrel comprises a barrel body, an inner cavity, screw holes, a first air supply groove, a second air supply groove, a through hole and a sealing ring, the inner cavity is prefabricated on the barrel body, the screw holes are arranged on the barrel body, the first air supply groove is in a crescent shape, the second air supply groove is positioned on one side of the opposite surface of the first air supply groove, the through hole corresponds to the joint, and the sealing ring is used for improving the sealing property between the rear flange cover and the middle cylinder.

Preferably, this rotor includes blade, installation cavity and cell body, and the cell body department that the prefabrication was equipped with on this rotor has run through there is the installation cavity.

Preferably, the number of the installation cavities is six, the installation cavities are not communicated with each other, a hole is formed in the center of each installation cavity and correspondingly communicated with each other, and a spring and a pin are installed in the hole.

Preferably, the spring and pin form a spring rod, the rotor is connected with the blade through the spring rod, and the spring rod is installed in an installation cavity on the rotor.

Preferably, the blades are provided with three groups, and 6 blades are provided in total.

Preferably, a single group of the blades are arranged on opposite sides, and each group of the blades is matched and stretched in a linkage mode through a spring rod.

Preferably, the middle barrel is a separate housing.

Preferably, the two sides of the same surface of the middle cylinder are provided with two first air supply grooves, and the first air supply grooves on one side are arranged in an axial symmetry manner.

Preferably, the first air supply groove is a groove.

Preferably, any one of the two vent holes arranged on the rear flange cover has an air inlet function, the other vent hole has an auxiliary exhaust function, and the air outlet hole on the middle cylinder is used for main exhaust of the motor.

Preferably, the retainer ring is an inner hole retainer ring, the bearing is a deep groove ball bearing, the oil seal is a double-opening oil seal, and the screw is an inner hexagonal cylindrical head screw.

Preferably, the through hole penetrates the cylindrical body.

By adopting the technical scheme, the invention has the beneficial effects that:

1. according to the invention, the middle cylinder is optimally arranged, the structure of the middle cylinder is optimized, and the structure is matched with precision processing equipment, so that the pneumatic motor does not need to be added with a sleeve to form a double-sleeve body to ensure the motor sealing property, the rotor is directly arranged in the middle cylinder, and the complete pneumatic motor can be formed by matching with the flange cover, thereby saving the production, manufacturing and use cost of the motor. The first air supply groove in the crescent shape is designed on the middle cylinder structure, the two air supply grooves in axial symmetry are designed on a single surface, the number of double surfaces is four, when gas flows in the middle cylinder, the rotor is driven to rotate efficiently, the gas on one side can enter the air supply groove on the other side through the through hole penetrating through the cylinder body, and efficient driving of two sides of the rotor is achieved.

2. According to the invention, through optimally setting the vent holes and the vent holes, the vent holes are arranged on the rear flange cover, the vent holes are main exhaust ports of the pneumatic motor, and the vent holes are two in number, and are matched with the positive and negative rotation of the pneumatic motor, one vent hole can realize air inlet, the other vent hole can realize auxiliary exhaust, when compressed air drives the rotor to rotate, the inlet and outlet of the air reach corresponding balance, the compressed air is effectively discharged out of the shell, and the expansion of the compressed air is effectively avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings, like parts are designated with like reference numerals, and the drawings are schematic and not necessarily drawn to scale.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only one or several embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to such drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a novel pneumatic motor of the present invention;

FIG. 2 is a gas flow diagram of a novel pneumatic motor of the present invention;

FIG. 3 is a schematic structural diagram of a middle cylinder of the novel pneumatic motor of the present invention;

FIG. 4 is a schematic perspective view of a middle tube of a novel pneumatic motor according to the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4 in accordance with the present invention;

FIG. 6 is a cross-sectional view of a novel pneumatic motor of the present invention;

FIG. 7 is a schematic view of the rotor and the middle cylinder of the novel pneumatic motor according to the present invention;

FIG. 8 is a schematic view showing the relationship between the air holes and the through holes after the middle cylinder and the flange cover are fitted in the novel pneumatic motor of the present invention;

FIG. 9 is a side elevational view of the front flange cover of the novel pneumatic motor of the present invention;

FIG. 10 is a side elevational view of the rear flange cover of the novel pneumatic motor of the present invention;

FIG. 11 is a schematic view of a rotor of the novel pneumatic motor of the present invention;

FIG. 12 is a side view of a novel air motor of the present invention;

FIG. 13 is a cross-sectional view taken at C-C of FIG. 11 in accordance with the present invention;

fig. 14 is a cross-sectional view taken at D-D of fig. 11 in accordance with the present invention.

Description of the main reference numerals:

1. a front flange cover;

2. a rear flange cover;

3. a middle cylinder;

31. a barrel; 32. an inner cavity; 33. a screw hole; 34. a first air supply duct; 35. a second air supply groove; 36. a through hole; 37. a seal ring;

4. a rotor;

41. a blade; 42. a mounting cavity; 43. a trough body;

5. a retainer ring;

6. a bearing;

7. oil sealing;

8. a screw;

9. a vent hole;

10. an air outlet;

11. a joint;

12. an exhaust head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected through a transition structure, but are connected through a connection structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. 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, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present 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, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1 to 5, 9 and 10, fig. 1 is a schematic structural diagram of a novel pneumatic motor of the present invention, fig. 2 is a schematic gas flow diagram of a novel pneumatic motor of the present invention, fig. 3 is a schematic structural diagram of a middle cylinder of a novel pneumatic motor of the present invention, fig. 4 is a schematic three-dimensional structural diagram of a middle cylinder of a novel pneumatic motor of the present invention, fig. 5 is a sectional view in a direction a-a of fig. 4 of the present invention, fig. 9 is a side view of a front flange cover of a novel pneumatic motor of the present invention, and fig. 10 is a side view of a rear flange cover of a novel pneumatic motor of the present invention.

The embodiment provides a novel pneumatic motor, which comprises a front flange cover 1, a rear flange cover 2, a middle barrel 3, a rotor 4, a retainer ring 5, a bearing 6, an oil seal 7, a screw 8, an air vent 9, an air outlet 10, a joint 11 and an exhaust head 12. Preceding blind flange 1, back blind flange 2 is connected with well section of thick bamboo 3 through screw 8, it has rotor 4 to have a bearing 6 normal running fit in well section of thick bamboo 3, retaining ring 5, oil blanket 7 are used for sealing 4 sides of rotor, air vent 9 is provided with two, and set up on back blind flange 2 for axial symmetry, venthole 10 runs through in 3 side central points of well section of thick bamboo put, venthole 10 and exhaust head 12 threaded connection, air vent 9 runs through on back blind flange 2, connect 11 and air vent 9 threaded connection. The middle tube 3 includes a tube body 31, an inner cavity 32, a screw hole 33, a first air supply groove 34, a second air supply groove 35, a through hole 36 and a sealing ring 37. An inner cavity 32 is prefabricated on the cylinder body 31, a screw hole 33 is formed in the cylinder body 31, the first air supply groove 34 is crescent, the second air supply groove 35 is located on one side of the opposite face of the first air supply groove 34, the through hole 36 corresponds to the joint 11, and the sealing ring 37 is used for improving the sealing performance between the rear flange cover 2 and the middle cylinder 3. The through hole 36 penetrates the cylindrical body 31. In fig. 2, the dotted line indicates that the first air supply duct 34 is rectangular in side section, and in fig. 2, the internal structure of the motor middle cylinder 3 is shown as much as possible, so that the internal structure of the middle cylinder 3 can be easily understood, and fig. 2, in combination with fig. 1 and other drawings, can know the position relationship between the corresponding structures.

The retaining ring 5 is an inner hole retaining ring, the bearing 6 is a deep groove ball bearing, the oil seal 7 is a double-opening oil seal, the screw 8 is an inner hexagonal cylindrical head screw, the motor is convenient to seal, and the front flange cover 1 and the rear flange cover 2 are connected through the screw 8.

Referring to fig. 3, 4 and 6, fig. 3 is a schematic structural view of a middle cylinder of a novel pneumatic motor of the present invention, fig. 4 is a schematic perspective structural view of a middle cylinder of a novel pneumatic motor of the present invention, and fig. 6 is a cross-sectional view of a novel pneumatic motor of the present invention.

Any one of two vent holes 9 arranged on the rear flange cover 2 has air inlet function, the other vent hole has auxiliary exhaust function, and an air outlet 10 on the middle cylinder 3 is used for main exhaust of the motor.

The first air supply groove 34 is a groove for facilitating the control of the air flow direction.

Referring to fig. 7 and 11, fig. 7 is a schematic view of a rotor and a middle cylinder of a novel pneumatic motor according to the present invention, and fig. 11 is a schematic view of a structure of the rotor of the novel pneumatic motor according to the present invention.

The rotor 4 comprises a blade 41, a mounting cavity 42 and a groove body 43, and the mounting cavity 42 penetrates through the groove body 43 prefabricated on the rotor 4.

Referring to fig. 8, fig. 8 is a schematic view of the fit relationship between the vent hole and the through hole after the middle cylinder and the flange cover are fitted in the novel pneumatic motor of the present invention.

The spring and the pin form a spring rod, the rotor 4 is connected with the blade 41 through the spring rod, and the spring rod is installed in an installation cavity 42 on the rotor 4. The extension and retraction of the blades 41 are controlled by spring rods, so that the rotor 4 can be rotated after the gas is introduced into the motor.

The blades 41 are provided with three groups in total, and 6 blades are provided in total.

The single group of blades 41 are arranged on opposite sides, and each group of blades 41 is in linkage fit with and stretches out and draws back through a spring rod. I.e. the opposite blade 41 would be wired through the centre line of the centre rod of the rotor 4, the efficient cooperation allowing the motor to turn.

The middle barrel 3 is an independent shell. The single sleeve body sealing is realized by matching with high-precision machining equipment and structural design, and compared with the prior art, a sleeve body structure is omitted for sealing, so that the production and manufacturing cost is saved, namely, the middle cylinder 3 is not required to be additionally provided with a sleeve body for sealing and matching.

The two sides of the same surface of the middle cylinder 3 are respectively provided with two first air supply grooves 34, and the first air supply grooves 34 on one side are arranged in an axial symmetry manner. The high-efficient cooperation is carried out the water conservancy diversion to the gas that lets in the motor.

Referring to fig. 12-14, fig. 12 is a side view of a novel pneumatic motor of the present invention, fig. 13 is a sectional view taken at C-C of fig. 11 of the present invention, and fig. 14 is a sectional view taken at D-D of fig. 11 of the present invention.

The number of the installation cavities 42 is six, the installation cavities 42 are not communicated with each other, a hole is formed in the center of each installation cavity 42 and correspondingly communicated with each other, and a spring and a pin are installed in the hole. Every 2 pieces of blades 41 form one side, and in order to avoid the mutual influence of the spring rods, the spring rod mounting positions of different groups of blades 41 are staggered, so that the matching use effect is good.

When the novel pneumatic motor is used specifically, a rotor 4 and a blade 41 which is controlled to stretch and retract by a spring rod are installed in a middle cylinder 3, a front flange cover 1 and a rear flange cover 2 are installed on two sides of the middle cylinder 3 by screws 8, sealing rings are installed at corresponding positions, a joint 11 is installed on an air vent 9, an exhaust head 12 is installed on an air outlet 10, and the air outlet is correspondingly connected with the joint 11 and the exhaust head 12 through pipelines; in use, as shown in fig. 3, for example, the first air supply duct 34 and the through hole 36 are divided into a left first air supply duct 34 and a right first air supply duct 34. After gas is introduced into the joint 11 corresponding to the first air supply groove 34 on the left side, a part of the gas flows along the crescent first air supply groove 34, so that the blade 41 drives the rotor 4 to rotate, a part of the gas passes through the through hole 36 and enters the first air supply groove 34 opposite to the other side, so that the two sides of the blade 41 on the rotor 4 are driven by the introduced gas to rotate, at the moment, the pneumatic motor rotates reversely, and the joint 11 on the right side assists in exhausting gas. Similarly, when the joint 11 corresponding to the first air supply groove 34 on the right side is used for air intake, the other joint 11 is used for auxiliary exhaust, the motor rotates forwards at the moment, and the air outlet 10 is a main air outlet no matter which joint 11 is used for air intake. The gas flow direction of the motor is as shown in fig. 6, as shown in fig. 7, when gas flows into the first air supply groove 34 in the figure, the blade 41 close to the right side of the first air supply groove 34 moves rightwards, that is, high air pressure is formed on one side of the blade 41 pushed by the gas, and low air pressure is formed on the other side of the blade 41, at this time, the rotor 4 rotates anticlockwise, the two blades 41 form a cavity, the gas in the cavity is pushed and transferred along with the displacement of the blade 41, and when the gas moves to the position of the air outlet 10, the gas is discharged through the air outlet 10.

It is to be understood that the disclosed embodiments of the invention are not limited to the particular constructions disclosed herein, but extend to equivalents thereof as would be understood by those skilled in the relevant art. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.

Reference in the specification to "an embodiment" means that a particular feature, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Thus, the appearances of the phrase or "an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment.

Furthermore, the described features or characteristics may be combined in any other suitable manner in one or more embodiments. In the above description, certain specific details are provided, such as thicknesses, amounts, etc., to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other structures, components, and so forth.

Claims

1. A novel pneumatic motor is characterized by comprising a front flange cover, a rear flange cover, a middle barrel, a rotor, check rings, a bearing, an oil seal, screws, vent holes, a joint and an exhaust head, wherein the front flange cover and the rear flange cover are connected with the middle barrel through the screws, the rotor is rotatably matched in the middle barrel through the bearing, the check rings and the oil seal are used for sealing the side end of the rotor, two vent holes are arranged on the rear flange cover in an axial symmetry manner, the vent holes penetrate through the central position of the side surface of the middle barrel, the vent holes are in threaded connection with the exhaust head, the vent holes penetrate through the rear flange cover, the joint is in threaded connection with the vent holes, the middle barrel comprises a barrel body, an inner cavity, screw holes, a first air supply groove, a second air supply groove, a through hole and a sealing ring, the inner cavity is prefabricated on the barrel body, the screw holes are arranged on the barrel body, the first air supply groove is in a crescent shape, the second air supply groove is positioned on one side of the opposite surface of the first air supply groove, the through hole corresponds to the joint, and the sealing ring is used for improving the sealing property between the rear flange cover and the middle cylinder.

2. The novel pneumatic motor as claimed in claim 1, wherein the rotor includes a blade, a mounting cavity and a groove, and the mounting cavity is penetrated through the groove prefabricated on the rotor.

3. The new pneumatic motor as claimed in claim 2, wherein the number of the mounting cavities is six, and the mounting cavities are not communicated with each other, and a hole is formed in the center of each mounting cavity and correspondingly communicated with each other, and a spring and a pin are installed in the hole.

4. A novel pneumatic motor according to claim 3, wherein the spring and pin form a spring rod.

5. The new pneumatic motor according to claim 2, characterized in that the blades are provided in three groups of 6 in total.

6. The new pneumatic motor as claimed in claim 4, wherein a single set of the blades are arranged in opposite sides, each set of the blades being telescopically coupled in a ganged manner by a spring rod.

7. The new pneumatic motor of claim 1 wherein the middle cartridge is a self-contained housing.

8. The new pneumatic motor as claimed in claim 1, wherein the middle cylinder is provided with two first air supply grooves on both sides of the same surface, and the first air supply grooves are arranged in axial symmetry on one side.

9. The new pneumatic motor as claimed in claim 1, wherein the first air supply groove is a groove.

10. The novel pneumatic motor as claimed in claim 1, wherein one of the two air vents provided in the rear flange cover is used for air intake and the other is used for auxiliary air exhaust, and the air outlet on the middle cylinder is used for main air exhaust of the motor.