Method for controlling temperature in rotating cylinder cavity and isothermal rotating cylinder

Abstract

The invention discloses a method for controlling the temperature in a rotating cylinder cavity and an isothermal rotating cylinder. Relates to the technical field of cylinders, and the cylinder comprises a cylinder body and a rotating shaft, the rotating shaft is coaxially and rotatably connected to the cylinder body, and blades are fixedly connected to the rotating shaft; a baffle is fixedly connected in the cylinder body, and the rotating shaft, the baffle and the blades divide the interior of the cylinder body into a first air cavity and a second air cavity. An air inlet and an air outlet are formed in the side wall of the cylinder body, a first through hole and a second through hole are formed in the baffle, the air inlet is communicated with the first air cavity through the first through hole, and the air outlet is communicated with the second air cavity through the second through hole; a plurality of air channels are further arranged between the baffle and the blade, inlets of the air channels are first through holes or second through holes, and outlets of the air channels are formed in the blade and communicate with the first air cavity or the second air cavity; a plurality of gas paths communicated to the gas cavity are additionally arranged among the blades, the rotating shaft and the baffle, heat exchange between gas in the cavity and outside gas is accelerated, heat generated by movement of the blades is taken away, so that the temperature in the gas cavity is stable, the control error is reduced, and the rotating precision of the rotating cylinder is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cylinders, and in particular to a method for controlling the temperature in a rotating cylinder cavity and an isothermal rotating cylinder. Background Art

[0002] The rotary cylinder is generally composed of a cylinder body, blades, shaft, sealing system, and inlet and outlet channels. The cylinder body is the outer shell of the rotary cylinder, usually made of strong materials such as aluminum alloy or steel. The design of the cylinder body needs to take into account the functions of bearing air pressure and providing support. The blade is the moving part inside the rotary cylinder, responsible for rotation. It is usually made of a fan-shaped plastic body, with a certain gap between it and the cylinder baffle so that the compressed air can smoothly push the blade to rotate. The shaft is the energy output component of the rotary cylinder, which converts the air pressure energy into rotational motion and transmits it to the connected mechanical parts to realize the power transmission and work execution of the air pressure system. The sealing system is a key component to prevent compressed gas leakage. It usually includes components such as O-rings, gaskets, piston rings, etc. to ensure the stability and reliability of the air pressure system. The inlet and outlet channels allow compressed gas to enter and leave the rotary cylinder. They are usually located on one side of the shell and connected to the air pressure system; compressed gas enters the cavity from the air inlet, pushes the blade to rotate, drives the shaft to rotate, and the gas in the other cavity flows out from the air outlet to complete the clockwise rotation, and the same is true for counterclockwise rotation.

[0003] However, gas accumulates in the cavity, and as the filling and deflation movements proceed, the gas molecules move violently, generating heat, causing the temperature in the cavity to rise; the density of the compressed gas changes as the temperature rises, thereby affecting the gas pressure in the cavity and causing systematic errors in the blade rotation. Summary of the invention

[0004] In order to solve the defect that the temperature increase in the cavity during the movement of the cylinder affects the accuracy, the present application provides a method for controlling the temperature in the cavity of a rotating cylinder and an isothermal rotating cylinder.

[0005] In a first aspect, the present application provides a method for controlling the temperature in a rotating cylinder cavity, using the following technical solution:

[0006] A method for controlling the temperature in a rotating cylinder cavity is provided. Several gas paths connected to the cavity are added between blades, a rotating shaft and a baffle to accelerate the heat exchange between the cavity gas and the external gas, and take away the heat generated by the movement of the blades to stabilize the temperature in the cavity.

[0007] Furthermore, there are two air paths, and the two air paths supply air out and air in to the air cavity respectively.

[0008] In a second aspect, the present application also provides an isothermal rotating cylinder, which adopts the following technical solution:

[0009] An isothermal rotary cylinder comprises a cylinder body and a rotating shaft, wherein the rotating shaft is coaxially rotatably connected to the cylinder body, and a blade is fixedly connected to the rotating shaft; a baffle is fixedly connected in the cylinder body, and the rotating shaft, the baffle and the blade divide the interior of the cylinder body into air cavity one and air cavity two; an air inlet and an air outlet are provided on the side wall of the cylinder body, and a through hole one and a through hole two are provided on the baffle, the air inlet is connected to the air cavity one through the through hole one, and the air outlet is connected to the air cavity two through the through hole two; a plurality of air paths are also provided between the baffle and the blades, the inlet of the air path is through hole one or through hole two, and the outlet of the air path is arranged on the blade and connected to air cavity one or air cavity two.

[0010] Furthermore, the top wall and the bottom wall of the baffle are respectively provided with through hole three and through hole four, through hole three is connected with through hole one, and through hole four is connected with through hole two.

[0011] Furthermore, the top wall and the bottom wall of the cylinder body are respectively provided with a square groove 1 and a square groove 2, the square groove 1 is connected to the through hole 3, and the square groove 2 is connected to the through hole 4.

[0012] Furthermore, a mounting seat is coaxially and fixedly connected to the rotating shaft, the mounting seat is rotatably connected in the cylinder body, and the blade is fixedly connected to the mounting seat.

[0013] Furthermore, the top wall and the bottom wall of the mounting seat are respectively provided with an annular cavity 1 and an annular cavity 2, and the square groove 1 and the square groove 2 are respectively connected to the annular cavity 1 and the annular cavity 2.

[0014] Furthermore, a groove 1 and a groove 2 are respectively provided on the top wall and the bottom wall of the blade, and the annular cavity 1 and the annular cavity 2 are respectively connected to the groove 1 and the groove 2.

[0015] Furthermore, a through hole five and a through hole six are respectively provided on the two side walls of the blade, the groove one is connected with the air cavity one through the through hole five, and the groove two is connected with the air cavity two through the through hole six.

[0016] In summary, this application includes the following beneficial technical effects:

[0017] The present application provides multiple additional air paths to generate convection between the air in air cavity one and air cavity two, thereby accelerating the heat exchange between the air in the cavity and the outside air, and removing the heat generated by the movement of the blades to stabilize the temperature in the air cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an overall structural diagram of an isothermal rotating cylinder of the present application;

[0019] Figure 2 yes Figure 1 The middle structure is the overall structure diagram after the top wall of the cylinder is hidden;

[0020] Figure 3 yes Figure 2 Overall structural diagram of the partial structure;

[0021] Figure 4 yes Figure 3 Another perspective of the picture;

[0022] Figure 5 It is the overall structural diagram of the top wall of the cylinder body;

[0023] Figure 6 This is the overall structural diagram of the remaining part of the cylinder body.

[0024] Description of reference numerals:

[0025] 1. Cylinder body; 11. Air inlet; 12. Air outlet; 13. Square groove one; 14. Square groove two; 2. Mounting seat; 21. Annular cavity one; 22. Annular cavity two; 3. Rotating shaft; 4. Baffle; 41. Through hole one; 42. Through hole two; 43. Through hole three; 44. Through hole four; 5. Blade; 51. Groove one; 52. Groove two; 53. Through hole five; 54. Through hole six; 6. Copper wire mesh. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-6 This application is described in further detail.

[0027] An embodiment of the present application discloses a method for controlling the temperature inside a rotating cylinder cavity. The main idea of ​​the method is to add additional passages to the original air inlet and outlet passages; passages are also added to the blade 5 and connected to the air cavities on both sides of the blade 5, so that convection is generated in the air cavity, and both air inlet and air outlet can be faster, thereby accelerating the heat exchange between the gas in the cavity and the external gas, and taking away the heat generated by the movement of the blade 5, so as to stabilize the temperature in the air cavity; in the present embodiment, there are two air passages, and the two passages are respectively for air outlet and air inlet of the air cavity.

[0028] According to the above main idea, the present application provides an isothermal rotary cylinder, which includes a cylinder body 1 and a rotating shaft 3. The cylinder body 1 is connected by bolts to an upper and lower part. The rotating shaft 3 is coaxially fixedly connected to a mounting seat 2, and the mounting seat 2 is coaxially rotatably connected to the inside of the cylinder body 1; a baffle 4 is fixedly connected to the cylinder body 1, and a blade 5 is fixedly connected to the mounting seat 2. The blade 5, the mounting seat 2 and the baffle 4 divide the space in the cylinder body 1 into two air cavities, namely, air cavity 1 and air cavity 2. Figure 2 For example, in the figure, the left side is air cavity one, and the right side is air cavity two; an air inlet 11 and an air outlet 12 are provided on the side wall of the cylinder body 1, and a through hole 1 41 and a through hole 2 42 are provided on the baffle 4. The air inlet 11 is connected to the through hole 1 41 and connected to the air cavity one, and the air outlet 12 is connected to the through hole 2 42 and connected to the air cavity two; when working, gas is filled into the air cavity one through the air inlet 11, so that a pressure difference is generated between the air cavity one and the air cavity two, thereby driving the blade 5 to rotate.

[0029] According to the idea of ​​the aforementioned method, the present application also provides through hole three 43 and through hole four 44 on the top wall and bottom wall of the baffle 4, respectively, through hole three 43 is connected to through hole one 41, and through hole four 44 is connected to through hole two 42; the top wall and bottom wall of the cylinder body 1 are provided with square groove one 13 and square groove two 14, respectively, square groove one 13 is connected to through hole three 43, and square groove two 14 is connected to through hole four 44; the top wall and bottom wall of the mounting seat 2 are provided with annular cavity one 21 and annular cavity two 22, respectively, square groove one 13 and square groove two 14 are connected to annular cavity one 21 and annular cavity two 22, respectively; the top wall of the blade 5 A groove 51 and a groove 2 52 are respectively provided on the bottom wall, and the annular cavity 21 and the annular cavity 22 are respectively connected to the groove 1 51 and the groove 2 52; a through hole 53 and a through hole 6 54 are respectively provided on the two side walls of the blade 5, the groove 1 51 is connected to the air cavity 1 through the through hole 53, and the groove 2 52 is connected to the air cavity 2 through the through hole 6 54; therefore, when the air cavity 1 is inflated through the air inlet 11, part of the gas will enter the air cavity 1 through the through hole 3 43, the square groove 1 13, the annular cavity 21, the groove 1 51 and the through hole 5 53 in sequence, and the gas forms convection in the cavity.

[0030] The same is true for the air outlet 12, which is divided into two outflows, one of which flows into the through hole 2 42 from the air cavity 2 and flows out of the air outlet 12, and the other flows through the through hole 6 54, the groove 2 52, the annular cavity 22, the square groove 2 14 and the through hole 44 in sequence into the through hole 2 42 and finally flows out of the air outlet 12, which also enhances the exhaust speed so that the gas in the air cavity 2 is less compressed, thereby avoiding temperature rise.

[0031] It should be noted that the air inlet 11 and the air outlet 12 in this embodiment are not only capable of unidirectional air intake or unidirectional air outlet. The air inlet 11 can also be used to exhaust gas, and the air outlet 12 can also be used to enter gas. When the blades 5 need to be reversed, the functions of the air inlet 11 and the air outlet 12 can be swapped.

[0032] Finally, folded isothermal materials are provided in both cavity 1 and cavity 2. For example, a rotary cylinder with an inner diameter of 32 mm and an inner cavity height of 23 mm can use a copper wire with a diameter of 50 microns to weave into a copper wire mesh 6 with an interval of 0.1 mm and a length and width of 23*147 as an isothermal material. The size specifications of the filling material for cylinders of different models are formulated according to the specific inner cavity size of the cylinder, and multiple layers of copper wire mesh 6 are superimposed and filled into the two cavities of the rotary cylinder. During the movement of the blade 5, the volume of the copper wire changes continuously, which will cause its toughness to decrease, increase the resistance to the movement of the blade 5, and be unfavorable for the motion control of the rotary cylinder. In order to solve this problem, nickel-titanium shape memory alloy is used as the outer shell to wrap the copper wire. The nickel-titanium shape memory alloy itself has good latent heat and can be used as a heat storage material. Combined with the copper wire wrapped inside, it can achieve a good heat absorption and heat preservation effect.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for controlling the temperature in a rotating cylinder cavity, characterized in that: A plurality of air paths connected to the air cavity are provided between the blades (5), the rotating shaft (3) and the baffle (4) to accelerate the heat exchange between the gas in the cavity and the outside gas, and to remove the heat generated by the movement of the blades (5), so as to stabilize the temperature in the air cavity.

2. A method for controlling the temperature in a rotating cylinder cavity according to claim 1, characterized in that: There are two air paths, which respectively supply air to the air cavity for air outlet and air inlet.

3. An isothermal rotary cylinder, using the method for controlling the temperature in the rotary cylinder cavity according to claim 1, characterized in that: The invention comprises a cylinder body (1) and a rotating shaft (3), wherein the rotating shaft (3) is coaxially rotatably connected to the cylinder body (1), and a blade (5) is fixedly connected to the rotating shaft (3); a baffle (4) is fixedly connected to the cylinder body (1), and the rotating shaft (3), the baffle (4) and the blade (5) divide the interior of the cylinder body (1) into a first air chamber and a second air chamber; an air inlet (11) and an air outlet (12) are provided on the side wall of the cylinder body (1), and a first through hole (41) and a second through hole (42) are provided on the baffle (4); the air inlet (11) is connected to the first air chamber through the first through hole (41), and the air outlet (12) is connected to the second air chamber through the second through hole (42); and a plurality of air paths are also provided between the baffle (4) and the blade (5), wherein the inlet of the air path is the first through hole (41) or the second through hole (42), and the outlet of the air path is provided on the blade (5) and is connected to the first air chamber or the second air chamber.

4. The isothermal rotary cylinder according to claim 3, characterized in that: The top wall and the bottom wall of the baffle (4) are respectively provided with a third through hole (43) and a fourth through hole (44); the third through hole (43) is connected to the first through hole (41), and the fourth through hole (44) is connected to the second through hole (42).

5. The isothermal rotary cylinder according to claim 4, characterized in that: The top wall and the bottom wall of the cylinder body (1) are respectively provided with a square groove one (13) and a square groove two (14); the square groove one (13) is connected to the through hole three (43); the square groove two (14) is connected to the through hole four (44).

6. The isothermal rotary cylinder according to claim 5, characterized in that: A mounting seat (2) is coaxially and fixedly connected to the rotating shaft (3); the mounting seat (2) is rotatably connected to the cylinder body (1); and the blade (5) is fixedly connected to the mounting seat (2).

7. The isothermal rotary cylinder according to claim 6, characterized in that: The top wall and the bottom wall of the mounting seat (2) are respectively provided with an annular cavity 1 (21) and an annular cavity 2 (22), and the square groove 1 (13) and the square groove 2 (14) are respectively connected to the annular cavity 1 (21) and the annular cavity 2 (22).

8. The isothermal rotary cylinder according to claim 7, characterized in that: A groove 1 (51) and a groove 2 (52) are respectively provided on the top wall and the bottom wall of the blade (5), and the annular cavity 1 (21) and the annular cavity 2 (22) are respectively connected to the groove 1 (51) and the groove 2 (52).

9. The isothermal rotary cylinder according to claim 8, characterized in that: A through hole five (53) and a through hole six (54) are respectively provided on the two side walls of the blade (5); the groove one (51) is connected to the air cavity one through the through hole five (53); and the groove two (52) is connected to the air cavity two through the through hole six (54).

10. The isothermal rotary cylinder according to claim 9, characterized in that: Folded isothermal material is provided in the air cavity one and the air cavity two. The isothermal material is a copper wire mesh (6) woven from copper wires. The copper wires are wrapped with a nickel-titanium shape memory alloy.

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