A transmission device for high-precision heavy-load rotation control

Abstract

The present invention relates to a transmission device for high-precision heavy-load rotation control, which comprises: a rotating main body device (1), an involute spline telescopic connector (2), an air inlet and exhaust device (3), and a power device (4); the involute spline telescopic connector (2) comprises an involute spline solid shaft (24) and an involute spline housing (23), which are connected through an involute spline pair (29). By utilizing the self-centering function and high load-bearing capacity of the involute spline, the power transmission is stable and accurate. This device is easy to operate, has high precision and high load-bearing capacity, and can achieve stable automatic control, improving the operability and process precision.

Description

Technical Field

[0001] The invention relates to a transmission device for high-precision heavy-load rotation control, in particular to a high-precision rotation control transmission device capable of bearing heavy loads, belonging to the technical field of mechanical transmission. Background Art

[0002] In the field of industrial production and environmental protection, there is a working condition that requires the rotation of a circular material distribution or collection tube. The circular tube needs to be rotated at an angle to distribute materials (liquids and other easy-flowing materials) or collect them. However, the power push rod of the current equipment is a rigid push rod (referred to as the push rod), and the connecting plate extending from the rotating circular tube is also rigid. At different angles, the rigid push rod will bend and deform, and generate great resistance. This makes operation difficult and easy to damage related parts. Summary of the invention

[0003] The purpose of the present invention is to provide a transmission device for high-precision heavy-load rotation control. The device uses involute spline connection to achieve easy operation, high precision, high load-bearing capacity, and can achieve stable automatic control, greatly improving the operability and process accuracy of this working condition.

[0004] The present invention is completed according to the following technical scheme. The present invention is a rotary transmission device for distributing and collecting rotating materials (liquids and other easy-flowing materials), including a spline telescopic connector, including a spline solid shaft connected, a spline shaft housing, an O-ring on the inner side of one end of the spline shaft housing, and a grease injection nozzle at the middle of a flange connected to the other end.

[0005] The present invention provides a transmission device for high-precision heavy-load rotation control, the transmission device comprising: a rotating body device (1), an involute spline telescopic connector (2), an intake and exhaust device (3) and a power device (4); the involute spline telescopic connector (2) comprises an involute spline solid shaft (24) and an involute spline housing (23), the involute spline solid shaft (24) being partially arranged in the involute spline housing (23), and the two being connected via an involute spline pair (29); the power device (4) having a push-pull straight rod (41), the push-pull straight rod (41) of the power device (4) being connected to the shaft end of the involute spline solid shaft (24), and being used for pushing the push-pull straight rod (41) through the power device (4), so that the involute spline solid shaft (24) is pushed. 4) As the involute spline solid shaft (24) extends or retracts from the involute spline housing (23) at different angles, the shaft end of the involute spline solid shaft (24) is arranged at one end of the involute spline telescopic connector (2), and the other end of the involute spline telescopic connector (2) is connected to the rotating main body device (1), and is used to drive the rotating main body device (1) to rotate through the involute spline telescopic connector (2) when pushing the push-pull straight rod (41), and the intake and exhaust device (3) has an intake valve (34) and an exhaust valve (35), and the intake and exhaust device (3) is connected to the cavity between the involute spline solid shaft (24) and the involute spline housing (23), and is used to replenish and release air in the cavity through the intake valve (34) and the exhaust valve (35) of the intake and exhaust device (3).

[0006] In the process of the involute spline solid shaft (24) extending or retracting from the involute spline housing (23) at different angles, negative pressure or positive pressure is generated in the cavity.

[0007] When the cavity is under negative pressure, the air inlet valve (34) is opened to allow air to enter the cavity, thereby replenishing air; when the cavity is under positive pressure, the air outlet valve (35) is opened to allow air to be discharged from the cavity, thereby deflation.

[0008] The power device (4) further comprises a power device housing (42) and a driving wheel (43); the push-pull straight rod (41) is arranged in the power device housing (42); the driving wheel (43) is drivably connected to the push-pull straight rod (41) and is used to enable the push-pull straight rod (41) to move axially up and down by rotating the driving wheel (43).

[0009] The push-pull straight rod (41) of the power device (4) is connected to the shaft end of the involute spline solid shaft (24) via a first connecting pin shaft (26), and the push-pull straight rod (41) is vertically connected to the involute spline solid shaft (24).

[0010] The rotating main body device (1) comprises a bearing swivel (11) and a connecting flange (12), and the connecting flange (12) is arranged outside the circumference of the bearing swivel (11).

[0011] The shaft end of the involute spline solid shaft (24) extends out of one end of the involute spline housing (23); the involute spline telescopic connector (2) further comprises a connecting plate (27) and an end connecting flange (28); the end connecting flange (28) is arranged on the other end of the involute spline housing (23); then, the connecting plate (27) is welded to the end connecting flange (28); the connecting plate (27) is connected to the connecting flange (12) via a second connecting pin (21), and is used to drive the bearing swivel (11) of the rotating main body device (1) to rotate through the involute spline telescopic connector (2) when pushing the push-pull straight rod (41).

[0012] The grease nozzle (22) is mounted on the end connection flange (28) and is connected to the cavity inside the involute spline telescopic connector (2) for injecting grease into the cavity.

[0013] The involute spline solid shaft (24) and the involute spline housing (23) are connected at one end close to the rotating main body device (1) through an involute spline pair (29) to ensure load-bearing and operating stability, and the other end close to the power device (4) is connected through a smooth surface, and the other end close to the power device (4) is provided with an O-ring (25) to ensure a sealing effect.

[0014] The air inlet and outlet device (3) further comprises an air inlet and outlet pipe (31), a hose (32), and a fixing frame (33); the fixing frame (33) is arranged on a power device housing (42) of the power device (4) and is used to support the air inlet and outlet device (3); one end of the air inlet valve (34) and the air outlet valve (35) are respectively connected to one end of the hose (32); the other end of the hose (32) is connected to the air inlet and outlet pipe (31); the air inlet and outlet pipe (31) passes through an end connection flange (28) to communicate with the cavity.

[0015] The present invention also provides a rotation control transmission method, the method comprising: when working, firstly, the driving wheel (43) of the power device (4) is rotated to make the push-pull straight rod (41) move axially up and down; then, the involute spline solid shaft (24) extends or retracts from the involute spline housing (23) at different angles, and during the extension or retraction process, a cavity of varying size is generated inside the involute spline solid shaft (24) and the involute spline housing (23), and the cavity The cavity will generate negative pressure or positive pressure. When the cavity is under negative pressure, the air inlet valve (34) opens to allow air to enter the cavity, thereby replenishing the air. When the cavity is under positive pressure, the air outlet valve (35) opens to allow air to be discharged from the cavity, thereby releasing the air. In this way, when the involute spline telescopic connector (2) is working, resistance will not be generated due to the positive and negative pressures in the cavity. When the involute spline telescopic connector (2) is working, the pressure is reduced to a level that can be sufficiently offset by the impact of the weight of the push-pull straight rod (41) itself.

[0016] On the basis of the above, the device also includes an air intake and exhaust device and a fixed bracket, including air intake and outlet hoses, including an air intake valve, an air outlet valve and a tee, and the air intake valve, the air outlet valve and the hose are connected through a tee. The tee is fixed to the power device housing by a fixed bracket, and the other end of the hose is connected to the inner side of the spline housing through a connecting flange.

[0017] The present invention transforms the connecting plate on the rotating circular tube into a retractable involute spline connecting transmission device. Since the involute spline itself has a strong load-bearing capacity and a self-centering function, the operation is easier and more accurate during the rotation control process, and it is easy to realize automatic control.

[0018] When working, the power device first pushes the push-pull straight rod, and then the spline shaft will extend or retract from the spline shaft housing at different angles. During the extension or retraction process, a cavity of varying size will be generated inside the spline shaft and the spline shaft housing. At this time, when the inlet and exhaust devices are under negative pressure, the inlet valve will open to allow air to enter, and when the inlet and exhaust devices are under positive pressure, the exhaust valve will open to exhaust air. In this way, when the involute spline telescopic connector is working, there will be no resistance due to the positive and negative pressure of the cavity.

[0019] The spline solid shaft and the push-pull straight rod are connected by a hinged hole connecting pin, which ensures the compactness and stability of the overall linkage and does not swing due to impact.

[0020] In summary, the patent of the present invention adopts involute spline connection to control the rotating cloth and collection (liquid), so that the overall operation is convenient, the system is more stable, the precision is higher, and it is easy to realize automatic control. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention.

[0022] Figure 2 for Figure 1 AA section view.

[0023] Specific implementation method.

[0024] like Figure 1-2 As shown, a transmission device for high-precision heavy-load rotation control, the transmission device includes: a rotating body device 1, an involute spline telescopic connector 2, an intake and exhaust device 3 and a power device 4; the involute spline telescopic connector 2 includes an involute spline solid shaft 24 and an involute spline housing 23, the involute spline solid shaft 24 is partially arranged in the involute spline housing 23, and the two are connected by Figure 2 The involute spline pair 29 shown is connected; the power device 4 has a push-pull straight rod 41, and the push-pull straight rod 41 of the power device 4 is connected to the axial end of the involute spline solid shaft 24, which is used to push the push-pull straight rod 41 through the power device 4, so that the involute spline solid shaft 24 extends or retracts from the involute spline housing 23 at different angles, and the axial end of the involute spline solid shaft 24 is arranged at one end of the involute spline telescopic connector 2, and the other end of the involute spline telescopic connector 2 is connected to the rotating main body device 1, which is used to drive the rotating main body device 1 to rotate through the involute spline telescopic connection 2 when pushing the push-pull straight rod 41, and the intake and exhaust device 3 has an intake valve 34 and an exhaust valve 35, and the intake and exhaust device 3 is connected to the cavity between the involute spline solid shaft 24 and the involute spline housing 23, and is used to replenish and deflate the cavity through the intake valve 34 and the exhaust valve 35 of the intake and exhaust device 3. When the involute spline solid shaft 24 extends or retracts from the involute spline housing 23 at different angles, the cavity will generate negative pressure or positive pressure. When the cavity is at negative pressure, the inlet valve 34 is opened to allow air to enter the cavity, thereby replenishing air. When the cavity is at positive pressure, the outlet valve 35 is opened to allow air to be discharged from the cavity, thereby deflation.

[0025] The power device 4 further includes a power device housing 42 and a driving wheel 43. The push-pull straight rod 41 is disposed in the power device housing 42. The driving wheel 43 is drivably connected to the push-pull straight rod 41, and is used to allow the push-pull straight rod 41 to move axially up and down by rotating the driving wheel 43. The push-pull straight rod 41 of the power device 4 is connected to the shaft end of the involute spline solid shaft 24 through the first connecting pin 26, and the push-pull straight rod 41 is vertically connected to the involute spline solid shaft 24. The rotating main body device 1 includes a bearing swivel 11 and a connecting flange 12, and the connecting flange 12 is disposed on the circumferential outer portion of the bearing swivel 11. The axial end of the involute spline solid shaft 24 extends out of one end of the involute spline housing 23; the involute spline telescopic connector 2 also includes a connecting plate 27 and an end connecting flange 28, and the end connecting flange 28 is arranged on the other end of the involute spline housing 23. Thereafter, the connecting plate 27 is welded on the end connecting flange 28, and the connecting plate 27 is connected to the connecting flange 12 through a second connecting pin 21, which is used to drive the load-bearing swivel 11 of the rotating main body device 1 to rotate through the involute spline telescopic connector 2 when pushing the push-pull straight rod 41.

[0026] Among them, the grease nozzle 22 is installed on the end connection flange 28 and connected to the cavity inside the involute spline telescopic connector 2, and is used to inject grease into the cavity. The involute spline solid shaft 24 and the involute spline housing 23 are connected by an involute spline pair 29 at one end close to the rotating main body device 1 to ensure the load-bearing and operating stability. The other end close to the power device 4 is connected by a smooth surface, and an O-ring 25 is provided at the other end close to the power device 4 to ensure the sealing effect. The intake and exhaust device 3 also includes an intake and outlet pipe 31, a hose 32, and a fixing frame 33. The fixing frame 33 is arranged on the power device housing 42 of the power device 4 to support the intake and exhaust device 3. One end of the intake valve 34 and the outlet valve 35 are respectively connected to one end of the hose 32, and the other end of the hose 32 is connected to the intake and outlet pipe 31. The intake and outlet pipe 31 passes through the end connection flange 28 to connect to the cavity.

[0027] The present invention also provides a rotation control transmission method, which includes: when working, the driving wheel 43 of the power device 4 is rotated to make the push-pull straight rod 41 move axially up and down; then the involute spline solid shaft 24 will extend or retract from the involute spline housing 23 at different angles. During the extension or retraction process, a cavity of constantly changing size will be generated inside the involute spline solid shaft 24 and the involute spline housing 23, and the cavity will generate negative pressure or positive pressure. When the cavity is under negative pressure, the air inlet valve 34 is opened to allow air to enter the cavity, thereby replenishing air. When the cavity is under positive pressure, the air outlet valve 35 is opened to allow air to be discharged from the cavity, thereby venting air. In this way, when the involute spline telescopic connector 2 is working, no resistance will be generated due to the positive and negative pressures of the cavity, so that when the involute spline telescopic connector 2 is working, the pressure is reduced to a level that can be sufficiently offset by the impact of the gravity of the push-pull straight rod 41 itself.

[0028] The involute spline telescopic connector 2 includes an involute spline solid shaft 24 and an involute spline housing 23, which are connected by an involute spline pair 29. The self-centering effect and high load-bearing capacity of the involute spline are utilized to ensure smooth and stable power transmission. During operation of the involute spline telescopic connector 2, negative pressure or positive pressure will be generated in the internal cavity, causing the push-pull straight rod 41 of the power device 4 to generate greater resistance. The air in and out of the cavity in the involute spline telescopic connector 1 is replenished and deflated through the air inlet valve 34 and the air outlet valve 35 in the air intake and exhaust device 3, so that during operation of the involute spline telescopic connector 2, the pressure is greatly reduced to a level that can be sufficiently offset by the impact of the weight of the push-pull straight rod 41 itself.

[0029] On the basis of the above, the rotation control transmission device also includes a connecting pin 26 and a connecting pin 21, both of which are connected by hinged holes, which increases the overall compactness of the device and prevents swinging during operation due to excessive gaps, resulting in unstable fabric or collection.

[0030] The above-described cases are only preferred implementation cases of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A transmission device for high-precision heavy-load rotation control, characterized in that, the transmission device includes: a rotating main body device (1), an involute spline telescopic connector (2), an air intake and exhaust device (3) and a power device (4); the involute spline telescopic connector (2) includes an involute spline solid shaft (24) and an involute spline housing (23), a part of the involute spline solid shaft (24) is arranged inside the involute spline housing (23), and the two are connected through an involute spline pair (29); the power device (4) has a push-pull straight rod (41), and the push-pull straight rod (41) of the power device (4) is connected to the shaft end of the involute spline solid shaft (24), for pushing the push-pull straight rod (41) through the power device (4), so that the involute spline solid shaft (24) extends or retracts from the inside of the involute spline housing (23) at different angles, the shaft end of the involute spline solid shaft (24) is arranged at one end of the involute spline telescopic connector (2), and the other end of the involute spline telescopic connector (2) is connected to the rotating main body device (1), for driving the rotating main body device (1) to rotate through the involute spline telescopic connector (2) when pushing the push-pull straight rod (41), the air intake and exhaust device (3) has an air intake valve (34) and an air outlet valve (35), and the air intake and exhaust device (3) is communicated with the cavity between the involute spline solid shaft (24) and the involute spline housing (23), for supplementing air and discharging air into and out of the cavity through the air intake valve (34) and the air outlet valve (35) of the air intake and exhaust device (3).

2. The transmission device for high-precision heavy-load rotation control according to claim 1, characterized in that, during the process of the involute spline solid shaft (24) extending or retracting from the inside of the involute spline housing (23) at different angles, negative pressure or positive pressure will be generated in the cavity.

3. The transmission device for high-precision heavy-load rotation control according to claim 2, characterized in that, when the cavity is in negative pressure, the air intake valve (34) is opened to allow air to enter the cavity, so as to supplement air, and when the cavity is in positive pressure, the air outlet valve (35) is opened to allow air to discharge from the cavity, so as to discharge air.

4. The transmission device for high-precision heavy-load rotation control according to any one of claims 1-3, characterized in that, the power device (4) further has a power device housing (42) and a driving wheel (43), the push-pull straight rod (41) is arranged inside the power device housing (42), and the driving wheel (43) is drivingly connected to the push-pull straight rod (41), for making the push-pull straight rod (41) move in a straight line axially up and down by rotating the driving wheel (43).

5. The transmission device for high-precision heavy-load rotation control according to any one of claims 1-3, characterized in that, the push-pull straight rod (41) of the power device (4) is connected to the shaft end of the involute spline solid shaft (24) through a first connecting pin shaft (26), and the push-pull straight rod (41) is vertically connected to the involute spline solid shaft (24).

6. A transmission device for high-precision heavy-load rotation control according to any one of claims 1-3, characterized in that, the rotating main body device (1) includes a bearing rotating body (11) and a connecting flange (12), and the connecting flange (12) is arranged on the outer circumference of the bearing rotating body (11).

7. A transmission device for high-precision heavy-load rotation control according to claim 6, characterized in that, the shaft end of the involute spline solid shaft (24) extends out of one end of the involute spline housing (23); the involute spline telescopic connector (2) further includes a connecting plate (27) and an end connecting flange (28), the end connecting flange (28) is arranged on the other end of the involute spline housing (23), and then, the connecting plate (27) is welded on the end connecting flange (28), and the connecting plate (27) is connected with the connecting flange (12) through the second connecting pin shaft (21), and is used to drive the bearing rotating body (11) of the rotating main body device (1) to rotate through the involute spline telescopic connector (2) when pushing and pulling the push-pull straight rod (41).

8. A transmission device for high-precision heavy-load rotation control according to claim 7, characterized in that, the grease nipple (22) is installed on the end connecting flange (28) and communicates with the cavity inside the involute spline telescopic connector (2), and is used to inject grease into the cavity.

9. A transmission device for high-precision heavy-load rotation control according to claim 7, characterized in that, one end of the involute spline solid shaft (24) and the involute spline housing (23) close to the rotating main body device (1) are connected through an involute spline pair (29) to ensure the bearing and operation stability, the other end close to the power device (4) is connected through a smooth surface, and an O-ring (25) is arranged at the other end close to the power device (4) to ensure the sealing effect.

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