T-shaped photoelectric turntable capable of reducing bearing load

Abstract

The invention provides a T-shaped photoelectric rotary table capable of reducing bearing load, and belongs to the field of photoelectric rotary tables. The problem that the service life of an existing rotary table is shortened due to the fact that paired contact bearings are adopted for supporting a pitching cabin and a load cabin is solved. The device comprises a base, a rotating shaft, a motor, a bearing, a shaft sleeve and a jet device, a gas channel is arranged in the base, the rotating shaft is rotatably arranged on the base, a flat plate is fixedly arranged at the top end of the rotating shaft, the shaft sleeve is fixedly arranged on the base, the bearing is arranged between the shaft sleeve and the rotating shaft, and the motor is in transmission connection with the rotating shaft; the gas generator is communicated with the multiple nozzles through the gas channel, the multiple nozzles are arranged at intervals in the circumferential direction of the rotating shaft, the nozzles are fixedly arranged on the base and located below the flat plate, the gas outlet direction of the nozzles is obliquely arranged relative to the vertical direction, and multiple wind plates are arranged on the lower surface of the flat plate at intervals. The radial force borne by the bearing can be effectively reduced, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of photoelectric turntables, and in particular relates to a T-shaped photoelectric turntable capable of reducing the load on a bearing. Background Art

[0002] The azimuth turntable of the existing T-type turntable needs to carry the pitch cabin and the load cabin. The pitch cabin contains the drive motor, position encoder and necessary bearing components, while the load cabin is equipped with precision instruments such as lasers, cameras, infrared thermal imagers, etc. The commonly used method is to use pairs of large-angle contact bearings to support the pitch cabin and the load cabin. However, although this design method can meet basic functional requirements, it has certain limitations. On the one hand, it limits the bearing's load-bearing capacity, which increases the volume of the bearing and thus increases the overall volume of the equipment; on the other hand, the high radial force borne by the bearing shortens its service life and limits the rotation speed of the turntable. In addition, in high-humidity environments such as islands or at sea, the large temperature difference between day and night can cause the internal water vapor to liquefy, which in turn causes problems such as corrosion of metal parts, which may eventually lead to a series of faults such as motor damage and decreased encoder sensitivity. Summary of the invention

[0003] In view of this, in order to solve the problem that the existing T-type turntable uses paired large-angle contact bearings to support the pitch cabin and the load cabin, which limits the bearing's load-bearing capacity, increases the bearing's volume and thus increases the overall volume of the equipment, and the high radial force borne by the bearing shortens its service life and limits the rotation speed of the turntable. In addition, it is easy to cause corrosion of metal parts in a high humidity environment. The present invention proposes a T-type photoelectric turntable that can reduce the bearing load.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A T-shaped photoelectric turntable capable of reducing bearing load, comprising:

[0006] A base, wherein a gas passage is provided in the base;

[0007] A rotating shaft, the rotating shaft is rotatably arranged on the base, and a flat plate is fixedly arranged on the top of the rotating shaft;

[0008] A bearing and a sleeve, wherein the sleeve is fixedly arranged on the base, and the bearing is arranged between the sleeve and the rotating shaft;

[0009] A motor, the motor is drivingly connected to the rotating shaft;

[0010] The jet device includes a gas generator and a plurality of nozzles, wherein the gas generator is connected to the plurality of nozzles through the gas channel, the plurality of nozzles are arranged at intervals along the circumferential direction of the rotating shaft, the nozzles are fixedly arranged on the base, the nozzles are located below the flat plate, the gas outlet direction of the nozzles is inclined relative to the vertical direction, and a plurality of wind plates are arranged at intervals on the lower surface of the flat plate.

[0011] As a preferred solution of the above-mentioned T-shaped photoelectric turntable capable of reducing bearing load, the T-shaped photoelectric turntable capable of reducing bearing load also includes a first one-way valve, which is fixedly arranged on the base, and the gas generator enters the gas channel through the first one-way valve.

[0012] As a preferred solution of the above-mentioned T-shaped photoelectric turntable capable of reducing bearing load, the T-shaped photoelectric turntable capable of reducing bearing load further comprises a gas dryer, and the gas dryer is arranged between the gas generator and the first one-way valve.

[0013] As a preferred solution of the above-mentioned T-shaped photoelectric turntable capable of reducing the bearing load, the T-shaped photoelectric turntable capable of reducing the bearing load further comprises a filter, and the filter is arranged in the gas channel.

[0014] As a preferred solution of the above-mentioned T-shaped photoelectric turntable capable of reducing the bearing load, the T-shaped photoelectric turntable capable of reducing the bearing load further comprises a dust cover, and the dust cover is covered on the flat plate.

[0015] As a preferred solution of the above-mentioned T-shaped photoelectric turntable capable of reducing the load on the bearing, the T-shaped photoelectric turntable capable of reducing the load on the bearing also includes a first sealing ring, which is arranged between the base and the flat plate, and the bearing and the sleeve are both located in the circle of the first sealing ring.

[0016] As a preferred solution of the above-mentioned T-shaped photoelectric turntable capable of reducing the bearing load, the T-shaped photoelectric turntable capable of reducing the bearing load further comprises an encoder, and the encoder is arranged between the base and the rotating shaft.

[0017] As a preferred solution of the above-mentioned T-shaped photoelectric turntable capable of reducing the load on the bearing, the T-shaped photoelectric turntable capable of reducing the load on the bearing further includes a second sealing ring, and the second sealing ring is arranged between the encoder and the rotating shaft.

[0018] As a preferred solution of the above-mentioned T-shaped photoelectric turntable capable of reducing the bearing load, it also includes a second one-way valve, which is fixedly arranged in the gas channel, and the gas enters the nozzle through the second one-way valve.

[0019] As a preferred solution of the above-mentioned T-shaped photoelectric turntable capable of reducing bearing load, the T-shaped photoelectric turntable capable of reducing bearing load further comprises a conductive slip ring, a central hole is formed on the rotating shaft, and the conductive slip ring is arranged in the central hole.

[0020] Compared with the prior art, the T-shaped photoelectric turntable provided by the present invention can reduce the bearing load and has the following beneficial effects:

[0021] The present invention provides a T-shaped photoelectric turntable capable of reducing the load on bearings. The motor can drive the rotating shaft to rotate, and the flat plate rotates together with the rotating shaft. A plurality of wind plates are arranged at intervals on the lower surface of the flat plate, and an inclined nozzle is arranged on the base. The thrust generated by the gas blown out of the nozzle on the flat plate and the wind plate can be divided into a force in a vertical upward direction and a force in a direction tangential to the rotating shaft. It can be understood that the force in a direction tangential to the rotating shaft separated from the gas blown out of the nozzle can push the flat plate to rotate, thereby driving the rotating shaft to rotate. When the motor is just started, the flat plate can be assisted to rotate, and the rotating shaft can be pushed to rotate together with the motor, so that the rotating shaft is easier to rotate, and the motor torque required for starting can be reduced, and the burden on the motor when starting can be reduced, so as to ensure that the motor can start smoothly and drive the rotating shaft to rotate. Moreover, during the rotation of the rotating shaft, the vertical upward force of the gas blown out of the nozzle can support the plate, share part of the load of the bearing, reduce the bearing load, increase the rotation speed of the turntable, and effectively reduce the radial force borne by the bearing, extend the service life of the bearing, and can also use small diameter and small volume bearings to reduce the total volume of the equipment and reduce the demand for installation space. In addition, a gas channel is provided in the base. When the gas enters the nozzle through the gas channel, it will pass through the electronic components and parts in the base, which can ensure a dry environment in the base, improve the air tightness of the turntable, prevent corrosion caused by moisture intrusion, and with the help of the flow effect of the jet, enhance the heat dissipation and cleaning capabilities of the T-type photoelectric turntable that can reduce the bearing load, and further ensure the working stability of the electronic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a cross-sectional view of a T-shaped photoelectric turntable capable of reducing bearing load provided by a specific embodiment of the present invention;

[0024] Figure 2 It is a cross-sectional view of a part of the structure of a T-shaped photoelectric turntable capable of reducing the bearing load provided by a specific embodiment of the present invention;

[0025] Figure 3It is a partial structure of a T-shaped photoelectric turntable capable of reducing the bearing load provided by a specific embodiment of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a rotating shaft, a flat plate and a wind plate of a T-shaped photoelectric turntable capable of reducing the bearing load provided by a specific embodiment of the present invention.

[0027] In the figure:

[0028] 1. Gas generator; 2. Gas dryer; 3. Base; 4. Rotating shaft; 5. Flat plate; 6. Wind plate; 7. Bearing; 8. Bushing; 9. Motor; 10. Encoder; 11. Conductive slip ring; 12. Dust cover; 13. Nozzle; 14. First sealing ring; 15. Filter; 16. Second sealing ring; 17. Second one-way valve; 18. First one-way valve; 19. Gas channel. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, the terms "upper", "lower", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] See also Figure 1-4 To describe this embodiment, the present invention provides a T-shaped photoelectric turntable capable of reducing the load on the bearing, the T-shaped photoelectric turntable capable of reducing the load on the bearing comprises a base 3, a rotating shaft 4, a bearing 7, a bushing 8, a motor 9 and an injection device, a gas channel 19 is provided in the base 3, the rotating shaft 4 is rotatably arranged on the base 3, a plate 5 is fixedly arranged on the top of the rotating shaft 4, the bushing 8 is fixedly arranged on the base 3, the bearing 7 is arranged between the bushing 8 and the rotating shaft 4, and the motor 9 is transmission-connected to the rotating shaft 4; the injection device comprises a gas generator 1 and a plurality of nozzles 13, the gas generator 1 is connected to the plurality of nozzles 13 through the gas channel 19, the plurality of nozzles 13 are arranged at intervals along the circumferential direction of the rotating shaft 4, the nozzles 13 are fixedly arranged on the base 3, the nozzles 13 are located below the plate 5, the gas outlet direction of the nozzles 13 is inclined relative to the vertical direction, and a plurality of wind plates 6 are arranged at intervals on the lower surface of the plate 5.

[0034] The T-shaped photoelectric turntable can reduce the bearing load. The motor 9 can drive the rotating shaft 4 to rotate, and the flat plate 5 rotates with the rotating shaft 4. A plurality of wind plates 6 are arranged at intervals on the lower surface of the flat plate 5. An inclined nozzle 13 is arranged on the base 3. The thrust generated by the gas blown out by the nozzle 13 on the flat plate 5 and the wind plate 6 can be divided into a force in the vertical upward direction and a force in the tangential direction to the rotating shaft 4. It can be understood that the force in the tangential direction to the rotating shaft 4 separated from the gas blown out by the nozzle 13 can push the flat plate 5 to rotate, thereby driving the rotating shaft 4 to rotate. When the motor 9 is just started, the rotating shaft 4 can be assisted to rotate, and the rotating shaft 4 can be driven to rotate together with the motor 9, so that the rotating shaft 4 is easier to rotate, and the motor torque required for starting can be reduced, and the burden on the motor 9 when starting can be reduced, so as to ensure that the motor 9 can start smoothly and drive the rotating shaft 4 to rotate. Moreover, during the rotation of the rotating shaft 4, the vertical upward force of the gas blown out of the nozzle 13 can support the flat plate 5, share part of the load of the bearing 7, reduce the load-bearing of the bearing 7, and increase the rotation speed of the turntable. Moreover, the radial force borne by the bearing 7 is effectively reduced, the service life of the bearing 7 is extended, and the bearing 7 with a small diameter and a small volume can be selected to reduce the total volume of the equipment and reduce the demand for installation space. In addition, a gas channel 19 is provided in the base 3. When the gas enters the nozzle 13 through the gas channel 19, it will pass through the electronic components and parts in the base 3, which can ensure a dry environment in the base 3, improve the air tightness of the turntable, prevent corrosion caused by moisture intrusion, and enhance the heat dissipation capacity of the T-type photoelectric turntable that can reduce the load-bearing of the bearing by means of the flow effect of the jet, further ensuring the working stability of the electronic components.

[0035] In this embodiment, the gas generator 1 is a nitrogen generator, which supplies dry nitrogen.

[0036] The T-shaped photoelectric turntable that can reduce the bearing load is provided with an air jet device, which can effectively enhance the torque, reduce the motor torque required at startup, and reduce the burden of servo control. It also reduces the radial load of the bearing 7, thereby extending its service life. It also reduces the weight borne by the bearing 7 and increases the rotation speed of the turntable. By selecting a bearing 7 with a smaller diameter, the demand for installation space can also be reduced. The load-bearing capacity of the load compartment is increased, and the overall performance is improved. In addition, it can keep the internal environment of the turntable dry and clean, prevent corrosion of electronic components and parts in the turntable, improve the corrosion resistance during operation in a humid environment, such as at sea or on an island, and has an auxiliary heat dissipation function.

[0037] Optionally, the T-shaped photoelectric turntable capable of reducing the bearing load further comprises a first one-way valve 18, which is fixedly arranged on the base 3, and the gas generator 1 enters the gas channel 19 through the first one-way valve 18. The first one-way valve 18 enables the gas to flow only from the gas generator 1 to the gas channel 19.

[0038] Optionally, the T-type photoelectric turntable that can reduce the bearing load further includes a gas dryer 2, which is provided between the gas generator 1 and the first one-way valve 18. The gas flows out of the gas generator 1, passes through the gas dryer 2, and then enters the one-way valve. The gas can be further dried so that the gas blown into the gas channel 19 remains in a dry state. It is ensured that the gas channel 19 is filled with dry gas.

[0039] Optionally, the T-shaped photoelectric turntable capable of reducing bearing load further comprises a filter 15, which is arranged in the gas channel 19. The filter 15 can prevent impurities from entering, thereby ensuring that the interior of the T-shaped photoelectric turntable capable of reducing bearing load is free from contamination.

[0040] Optionally, the T-shaped photoelectric turntable that can reduce the bearing load further includes a dust cover 12, which is provided on the flat plate 5. In this embodiment, a portion of the dust cover 12 is above the flat plate 5, and a portion is on the side of the flat plate 5, blocking a portion of the gap between the flat plate 5 and the base 3. Dust and impurities can be prevented from entering the inside of the turntable from the gap between the flat plate 5 and the base 3.

[0041] Optionally, the T-shaped photoelectric turntable capable of reducing the bearing load further comprises a first sealing ring 14, which is disposed between the base 3 and the plate 5, and the bearing 7 and the sleeve 8 are both located within the ring of the first sealing ring 14. The first sealing ring 14 can provide a physical barrier to prevent dust and moisture from entering the gap or interior between the bearing 7, the sleeve 8 and the rotating shaft 4.

[0042] Optionally, the T-shaped photoelectric turntable capable of reducing the bearing load further includes an encoder 10 , which is disposed between the base 3 and the rotating shaft 4 .

[0043] Optionally, the T-shaped photoelectric turntable capable of reducing the bearing load further comprises a second sealing ring 16, which is disposed between the encoder 10 and the rotating shaft 4. The second sealing ring 16 can provide sealing protection under static conditions.

[0044] Optionally, the T-shaped photoelectric turntable capable of reducing the bearing load further comprises a second one-way valve 17 , which is fixedly arranged in the gas channel 19 , and the gas enters the nozzle 13 through the second one-way valve 17 , so as to ensure that the gas flows in the gas channel 19 in one direction.

[0045] Optionally, the base 3 includes a supporting side tube and a base, the supporting side tube is fixedly connected to the base, a sealing groove is provided below the supporting side tube, a third sealing ring is embedded in the sealing groove, and the third sealing ring is located between the supporting side tube and the base. The third sealing ring can seal the gap between the supporting side tube and the base. The encoder 10, the bearing 7, etc. are all located inside the supporting side tube, and the gas channel 19 is also inside the supporting side tube.

[0046] Optionally, the T-shaped photoelectric turntable that can reduce the bearing load also includes a conductive slip ring 11. The rotating shaft 4 is provided with a central hole, and the conductive slip ring 11 is arranged in the central hole. The conductive slip ring 11 can ensure that the power transmission is not hindered during the rotation process.

[0047] Obviously, the embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. It is not necessary and impossible to exhaustively list all the embodiments here.

Claims

1. A T-shaped photoelectric turntable capable of reducing bearing load, characterized in that: include: A base (3), wherein a gas passage (19) is provided in the base (3); A rotating shaft (4), the rotating shaft (4) being rotatably disposed on the base (3), and a flat plate (5) being fixedly disposed on the top end of the rotating shaft (4); A bearing (7) and a shaft sleeve (8), wherein the shaft sleeve (8) is fixedly arranged on the base (3), and the bearing (7) is arranged between the shaft sleeve (8) and the rotating shaft (4); A motor (9), the motor (9) being drivingly connected to the rotating shaft (4); The jet device comprises a gas generator (1) and a plurality of nozzles (13), wherein the gas generator (1) is connected to the plurality of nozzles (13) through the gas channel (19), the plurality of nozzles (13) are arranged at intervals along the circumferential direction of the rotating shaft (4), the nozzles (13) are fixedly arranged on the base (3), the nozzles (13) are located below the flat plate (5), the gas outlet direction of the nozzles (13) is inclined relative to the vertical direction, and a plurality of wind plates (6) are arranged at intervals on the lower surface of the flat plate (5).

2. The T-shaped photoelectric turntable capable of reducing bearing load according to claim 1 is characterized in that: It also comprises a first one-way valve (18), wherein the first one-way valve (18) is fixedly arranged on the base (3), and the gas generator (1) enters the gas channel (19) through the first one-way valve (18).

3. The T-shaped photoelectric turntable capable of reducing bearing load according to claim 2 is characterized in that: It also comprises a gas dryer (2), wherein the gas dryer (2) is arranged between the gas generator (1) and the first one-way valve (18).

4. The T-shaped photoelectric turntable capable of reducing bearing load according to claim 1, characterized in that: It also comprises a filter (15), wherein the filter (15) is arranged in the gas channel (19).

5. The T-shaped photoelectric turntable capable of reducing bearing load according to claim 1, characterized in that: It also comprises a dust cover (12), wherein the dust cover (12) is covered on the flat plate (5).

6. The T-shaped photoelectric turntable capable of reducing bearing load according to claim 1, characterized in that: It also includes a first sealing ring (14), which is arranged between the base (3) and the flat plate (5), and the bearing (7) and the shaft sleeve (8) are both located inside the ring of the first sealing ring (14).

7. The T-shaped photoelectric turntable capable of reducing bearing load according to claim 1, characterized in that: It also comprises an encoder (10), wherein the encoder (10) is arranged between the base (3) and the rotating shaft (4).

8. The T-shaped photoelectric turntable capable of reducing bearing load according to claim 7, characterized in that: It also includes a second sealing ring (16), which is arranged between the encoder (10) and the rotating shaft (4).

9. The T-shaped photoelectric turntable capable of reducing bearing load according to claim 1, characterized in that: It also comprises a second one-way valve (17), wherein the second one-way valve (17) is fixedly arranged in the gas channel (19), and the gas enters the nozzle (13) through the second one-way valve (17).

10. The T-shaped photoelectric turntable capable of reducing bearing load according to claim 1, characterized in that: It also comprises a conductive slip ring (11); the rotating shaft (4) is provided with a central hole, and the conductive slip ring (11) is arranged in the central hole.

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