TW201805519A - Pneumatic motor wherein the rotation direction of the driving gears can be immediately changed by changing the rotation direction of the gas guide member at any time - Google Patents

Abstract

The present invention provides a pneumatic motor, which comprises a casing, a plurality of driving gears and a gas operating rod. The casing is formed with an air inlet passage, a first air passage, a second air passage and an actuating space. The driving gears are meshed with each other and pivoted at the casing, and located in the actuating space. A gas guide member in the gas operating rod defines a gas guiding groove, an air inlet hole and a vent hole. External air enters the actuating space via the casing to push the driving gears to rotate, and the rotation speed of the driving gears depends on the pressure of the inputted gas, so as to easily adjust the speed. In addition, due to the simple mechanical structure between the driving gears and the gas guide member in the gas operating rod, the rotation direction of the driving gears can be immediately changed by changing the rotation direction of the gas guide member at any time without encountering the problem of failure, so as to achieve rapid and arbitrary forward and reverse rotations.

Description

Air motor

The invention relates to a motor, in particular to a pneumatic motor.

According to the motor, there are electric motors and air motors. Air motors are divided into piston type and vane type. Air motors are mainly driven by compressed gas to provide torque output and then drive other tools to rotate. The structure of the conventional air motor is mainly It consists of a casing, a rotor, an air intake valve group and an air intake unit. In order to improve the overall efficiency, the air intake valve group includes an air intake part and an adjustment part, and the air intake part is provided with two air inlets, and the adjustment part is a ring A plurality of air outlet holes are provided, and the air intake unit is correspondingly arranged in the air intake chamber and can provide gas from the air intake valve group to drive the rotor.

In order to improve the efficiency of the overall power output, the aforementioned air motor has a complicated structure and is difficult to maintain and expensive to manufacture. More importantly, this type of air motor cannot arbitrarily and immediately change the direction driven by the power output. Therefore, how to solve the problem of knowledge structure is the problem that must be considered by the relevant industry.

The detailed features and advantages of the present invention are described in detail in the following embodiments. The content is sufficient for any person skilled in the art to understand and implement the technical content of the present invention, and according to the content disclosed in this specification, the scope of patent applications and the drawings. Anyone skilled in the relevant art can easily understand the related objects and advantages of the present invention.

The main object of the present invention is to use a single-storage mechanical structure between the gas guide in the gas operating lever and the driving gear, so changing the rotation direction of the gas guide at any time can immediately change the rotation direction of the driving gear without The problem of failure will occur, thereby achieving fast and arbitrary forward and reverse rotation.

In order to achieve the above object, the present invention is an air motor including: a casing, the casing forming an air inlet channel, a first air passage, a second air passage, and a communication air passage, the first air passage An air passage and an actuating space of the second air passage; a plurality of driving gears which are meshed and pivoted with each other in the casing and are located in the actuating space; and a gas operating lever which includes a gas guide and a connection to the gas The guide is used as a control operation lever. The gas guide defines a gas guide groove that can communicate with the first air passage or the second air passage, and a gas guide groove that can correspond to the first air passage or the first air passage. Two air passages connected in parallel with the air inlet and an air outlet connected with the air inlet.

According to an embodiment of the present invention, the casing includes a top wall, a bottom wall, and two side walls connecting the top wall and the bottom wall to form the operating space, and the first air passage and the second air passage The side walls are respectively formed, and the air inlet passage is formed on the top wall.

According to an embodiment of the present invention, it further includes a first casing and a second casing installed on both sides of the casing for shielding the operating space.

According to an embodiment of the present invention, the first air passage and the second air passage are respectively located on two sides of the operating space, and a first air vent and a second air vent are formed respectively.

According to an embodiment of the present invention, one of the driving gears is correspondingly disposed at each of the second vents.

According to an embodiment of the present invention, each of the driving gears is provided with a pivot for the driving gear to pivotally pass through and a pivoting member located at two ends of each of the pivots and pivotally fixing a position.

According to an embodiment of the present invention, a transmission gear is further installed on the pivot shaft.

The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

The structures, proportions, sizes, etc. shown in the drawings in this specification are only used to match the content disclosed in the specification for the understanding and reading of those skilled in the art, and are not intended to limit the limitations that the present invention can implement. Conditions, so it does not have technical significance, any structural modification, proportional relationship change, or size adjustment should still fall within the scope of the present invention without affecting the effects and goals that can be achieved by the present invention. The technical content disclosed must be within the scope. At the same time, the terms such as "one", "two" and "upper" used in this specification are only for the convenience of description, and are not intended to limit the scope of the invention, the changes in their relative relationships, or Adjustment, without substantial changes in technical content, should also be considered as the scope of the present invention.

Please refer to FIG. 1, FIG. 2 and FIG. 3, which are three-dimensional schematic diagrams, three-dimensional exploded schematic diagrams, and intake gas flow schematic diagrams of the preferred embodiment of the present invention. The present invention is an air motor. The air motor 1 mainly includes a casing 10, a plurality of driving gears 12, and a gas operating lever 14. The casing 10 includes a top wall 100, a bottom wall 101, and two side walls connecting the top wall 100 and the bottom wall 101. 102, each side wall 102 has a first air passage 103 and a second air passage 104, and the top wall 100 is formed with an air inlet channel 105. The top wall 100, the bottom wall 101 and the side wall 102 jointly define an operating space 106, an operating space 106 It is in communication with the air inlet passage 105, the first air passage 103, and the second air passage 104, and the driving gears 12 are meshed with each other and pivoted to the casing 10 and located in the operating space 106. The first air passage 103 and the second air passage 104 are respectively located on both sides of the actuating space 106, and a first air vent 107 and a second air vent 108 are formed respectively, and one of the driving gears 12 is correspondingly disposed at each second At the vent 108, a first casing 16 and a second casing 18 are respectively installed on both sides of the casing, so as to cover the operating space 106.

The aforementioned driving gear 12 is provided with a pivot shaft 120 and a pivoting member 122. The pivot shaft 120 is pivotally connected with the driving gear 12. The pivoting member 122 is located at two ends of each pivot shaft 120 and is pivotally fixed to the pivot shaft 120. A transmission gear 124 is additionally installed, and the transmission gear 124 transmits power to a connected external device.

The gas operating lever 14 includes a gas guiding member 140 and an operating lever 142 connected to the gas guiding member 140 for operation. The gas guiding member 140 defines a gas guiding groove 1402, an air inlet hole 1404, and Exhaust hole 1406, when the operating lever 142 controls the gas guide 140 to change the rotation position, the gas guide groove 1402 can correspond to and communicate with the first air passage 103 or the second air passage 104, as well as the air inlet 1404. Corresponding to the one air passage 103 or the second air passage 104, the exhaust hole 1406 is communicated with the air inlet hole 1404.

Refer to FIG. 4 and FIG. 5 together, which are schematic diagrams of an intake gas flow and an exhaust cross-section structure according to a preferred embodiment of the present invention. When in use, the external air supply motor is input through the air inlet channel 105. At this time, the gas guide 140 can be changed by the left and right rotation of the operation lever 142. In FIG. 4, the operation lever 142 is turned to the left to make the gas guide groove 1402. It is in communication with the second air passage 104, so the gas will enter the second air passage 104 from the first air port 107, and be discharged from the second air port 108 and push the upper driving gear 12 to rotate clockwise. The lower driving gear 12 rotates counterclockwise. The rotational speed of the driving gear 12 will increase or decrease with the strength of the gas, and the gas pushing the driving gear 12 will be discharged through the first air passage 103.

It can be seen in FIG. 5 that the gas discharged through the first air passage 103 enters through the air inlet hole 1404 and is then discharged through the exhaust hole 1406, thereby allowing the gas to circulate. The air motor 1 of the present invention can quickly and efficiently Change the rotation direction of the driving gear 12 arbitrarily, so for some external devices that need to change the rotation direction to change the output mode urgently, not only can change the direction of the conversion output in time, but also it is not prone to failure and damage caused by emergency steering. What's more important is that the speed output of the air motor 1 completely depends on the pressure of the gas input.

In addition, the position of the gas guide 140 after the rotation affects the size of the space where the gas guide groove 1402 and the first air passage 103 or the second air passage 104 communicate with each other. When the pressure of the pneumatic input is unchanged, the gas guide 140 Rotate to the bottom to maximize the space between the gas guide groove 1402 and the first air passage 103 or the second air passage 104. As the angle of rotation of the gas guide 140 is smaller, the space of communication is gradually reduced, so the gas The smaller the force transmitting and driving the driving gear 12, the lower the power output performance.

Furthermore, referring to FIG. 6 together, it is a schematic cross-sectional structure diagram of blocking gas input according to the present invention. When the operating lever 142 is located at the center position, the gas guide groove 1402 is not connected with the first air passage 103 or the second air passage 104, so the gas cannot pass through the first air passage 103 or the second air passage 104 It is transmitted to the operating space 106 and pushes the driving gear 12, and the gas is discharged along the gap between the gas guide 140 and the casing 10.

It can be clearly understood from the above structure that the air motor 1 of the present invention can control the rotation angle of the gas guide 140 by the operating lever 142, thereby achieving more intuitive and easier control of the rotational speed, and more importantly, it can change the conversion output in time. Direction, it is not easy to cause failure and damage caused by emergency steering.

1‧‧‧Air motor
120‧‧‧ Pivot
10‧‧‧chassis
122‧‧‧ Pivot
100‧‧‧ top wall
124‧‧‧Transmission Gear
101‧‧‧ bottom wall
14‧‧‧Gas lever
102‧‧‧ sidewall
140‧‧‧Gas guide
103‧‧‧First airway
1402‧‧‧Gas guide groove
104‧‧‧Second Airway
1404‧‧‧Air inlet
105‧‧‧Air inlet channel
1406‧‧‧Vent
106‧‧‧Activity space
142‧‧‧ Joystick
107‧‧‧first vent
16‧‧‧First case
108‧‧‧Second vent
18‧‧‧Second shell
12‧‧‧Drive gear

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

FIG. 2 is a schematic exploded perspective view of a preferred embodiment of the present invention.

FIG. 3 is a schematic structural cross-sectional view of an air intake according to a preferred embodiment of the present invention.

FIG. 4 is a schematic diagram of an intake gas flow according to a preferred embodiment of the present invention.

FIG. 5 is a schematic structural cross-sectional view of an exhaust gas according to a preferred embodiment of the present invention.

FIG. 6 is a schematic cross-sectional structure diagram of blocking gas input according to the present invention.

103‧‧‧First airway

104‧‧‧Second Airway

105‧‧‧Air inlet channel

106‧‧‧Activity space

107‧‧‧first vent

108‧‧‧Second vent

12‧‧‧Drive gear

140‧‧‧Gas guide

1402‧‧‧Gas guide groove

1404‧‧‧Air inlet

1406‧‧‧Vent

Claims (7)

An air motor includes: a casing, the casing forming an air inlet channel, a first air channel, a second air channel, and a communication channel between the air inlet channel, the first air channel, and the second air channel; Actuating space; a plurality of driving gears which are interlocked and pivoted on the casing and located in the actuating space; and a gas operating lever, which includes a gas guide and a gas guide connected to the gas guide for operation Rod, the gas guide member defines a gas guide groove that can communicate with and communicate with the first air passage or the second air passage, and an air intake that can correspond with and communicate with the first air passage or the second air passage A hole and an exhaust hole communicating with the air inlet hole. The pneumatic motor according to item 1 of the patent application scope, wherein the casing includes a top wall, a bottom wall, and two side walls connecting the top wall and the bottom wall to form the operating space, and the first air passage and The second air passages are formed on each of the side walls, and the air intake passage is formed on a top wall. The air motor described in item 2 of the scope of the patent application, further includes a first casing and a second casing installed on both sides of the casing for shielding the operating space. The air motor according to item 2 of the scope of the patent application, wherein the first air passage and the second air passage are located on both sides of the operating space, respectively, and a first air vent and a second air vent are respectively formed. According to the pneumatic motor described in item 3 of the patent application scope, one of the driving gears is correspondingly disposed at each of the second vents. The pneumatic motor according to item 1 of the scope of the patent application, wherein each of the driving gears is provided with a pivot for the driving gear to pivotally pass through, and a pivoting member located at each of the pivots and pivotally fixing the pivot. The air motor described in item 6 of the patent application scope further includes a transmission gear mounted on the pivot shaft.