CN211347381U - Transmission structure of helicopter main reducer test bed - Google Patents
Transmission structure of helicopter main reducer test bed Download PDFInfo
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- CN211347381U CN211347381U CN202020191206.8U CN202020191206U CN211347381U CN 211347381 U CN211347381 U CN 211347381U CN 202020191206 U CN202020191206 U CN 202020191206U CN 211347381 U CN211347381 U CN 211347381U
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Abstract
The utility model relates to a main reducer test equipment technical field just discloses transmission structure of helicopter main reducer test bench, including test bench, driving motor and transmission case, the upper surface of test bench is passed on the transmission shaft top of transmission case, the outer wall fixed sleeve machine of the transmission shaft of transmission case has first antifriction bearing, connect the through-hole has been seted up to the upper surface of test bench, and the pore wall of through-hole and first antifriction bearing's outer wall fixed connection, the last fixed surface of test bench is connected with lubricated mechanism, the inner wall fixedly connected with heat dissipation mechanism of test bench. The utility model discloses can effectively avoid the serious condition of helicopter main reducer test bench's transmission structure top wearing and tearing on the test bench, improve the life of test bench transmission structure to and can improve the radiating efficiency of test bench, and then improve the reliability of helicopter main reducer test bench transmission structure work.
Description
Technical Field
The utility model relates to a main reducer test equipment technical field especially relates to transmission structure of helicopter main reducer test bench.
Background
The helicopter main reducer has a power input end of an engine and a power output end connected with a transmission shaft of a rotor wing and a tail rotor accessory, is one of main transmission parts on a helicopter and is also the most complicated, largest and most important part in a transmission device, and is generally a gear transmission type main reducer. Its working characteristics are speed reduction and steering. The power of the engine with high rotating speed and small torque is changed into low rotating speed and large torque to be transmitted to the rotor shaft, and the power is transmitted to the tail rotor, accessories and the like according to the requirements of the rotating speed and the torque. The helicopter also plays a role of a central stressed component, directly bears all acting force and moment generated by the rotor wing and transmits the acting force and the moment to the helicopter body, and the helicopter main reducer needs to be tested on a test bench before leaving a factory, so that the quality of the helicopter main reducer is guaranteed.
The transmission structure top of current helicopter main reducer test bench is comparatively serious at test bench upper surface movable wear, seriously influences the life of helicopter main reducer test bench, and in addition, the transmission structure of helicopter main reducer test bench can the wearing and tearing produce heat at the during operation, if last high temperature changes the metal characteristic of part easily to influence the reliability of the transmission structure work of helicopter main reducer test bench.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art transmission structure top of helicopter main reducer test bench surface activity wearing and tearing comparatively seriously on the test bench, seriously influence the life of helicopter main reducer test bench, and the transmission structure of helicopter main reducer test bench can wear and tear the heat production at the during operation, if last high temperature changes the metal characteristic of part easily, thereby influence test bench transmission structure operational reliability's problem, and the transmission structure of the helicopter main reducer test bench that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
transmission structure of helicopter main reducer test bench, including test bench, driving motor and transmission case, the upper surface of test bench is passed on the transmission shaft top of transmission case, the outer wall fixed sleeve machine of the transmission shaft of transmission case has first antifriction bearing, connect the through-hole has been seted up to the upper surface of test bench, and the pore wall of through-hole and first antifriction bearing's outer wall fixed connection, the last fixed surface of test bench is connected with lubricated mechanism, the inner wall fixedly connected with heat dissipation mechanism of test bench.
Preferably, lubricating mechanism includes the drum and the ring tube with fixed surface connection on the test bench, the fixed intercommunication of inner wall of ring tube has the pipe of two symmetric distributions, the inner wall swing joint of drum has the rubber buffer, the inner wall fixedly connected with supporting shoe of rubber buffer, one side fixedly connected with guide arm of rubber buffer is kept away from to the supporting shoe, the lateral wall of pipe passes the lateral wall of drum and outwards extends, the fixed intercommunication of output of drum has the hose, the fixed intercommunication of outer wall of one end and the ring tube of drum is kept away from to the hose.
Preferably, heat dissipation mechanism include with test bench inner wall fixed connection's support ring, the inner wall of support ring rotates through second antifriction bearing and is connected with reciprocal lead screw, the bottom of reciprocal lead screw is through the inner wall fixed connection of third antifriction bearing with the test bench, the pole wall threaded connection of reciprocal lead screw has a screw thread section of thick bamboo, the outer wall fixedly connected with radiator fan of a screw thread section of thick bamboo, the top fixedly connected with dead lever of reciprocal lead screw, the pole wall fixedly connected with driven sprocket of dead lever, the outer wall of the transmission shaft of transmission case is fixed to be cup jointed driving sprocket, driving sprocket and driven sprocket's outer wall has cup jointed the chain jointly.
Preferably, the outer wall fixedly connected with stopper of a screw thread section of thick bamboo, the outer wall of test bench is seted up and is removed the groove with stopper matched with.
Preferably, rectangular heat dissipation holes are formed in the outer wall of the test bed, and the hole walls of the heat dissipation holes are fixedly connected with dust screens.
Preferably, the four corners of the lower surface of the test bed are fixedly connected with cushion blocks.
Preferably, one end of the guide rod, which is far away from the supporting block, is fixedly connected with a pulling block.
Preferably, the upper surface of the cylinder is provided with a feeding hole, and the hole wall of the feeding hole is in threaded connection with a sealing plug.
Preferably, the cooling fan comprises fan blades and a motor, and the outer wall of the motor is fixedly connected with a shell.
Compared with the prior art, the utility model provides a transmission structure of helicopter main reducing gear test bench possesses following beneficial effect:
the transmission structure of the helicopter main reducer test bed is provided with a cylinder, a rubber plug, a cooling fan and a reciprocating screw rod, when the test bed tests the helicopter main reducer, firstly a driving motor is started, the driving motor rotates a transmission shaft of a transmission box, the transmission shaft of the transmission box rotates a fixed rod through a driving chain wheel, a chain and a driven chain wheel, the fixed rod rotates the reciprocating screw rod, the reciprocating screw rod enables a threaded cylinder to move up and down, further the cooling fan moves up and down, the blowing range of the cooling fan is enlarged, the heat of internal parts of the test bed is rapidly dissipated and discharged through heat dissipation holes, the metal characteristics of the internal parts of the test bed are prevented from being changed due to high temperature, in addition, lubricating oil is added into the cylinder, then the guide rod is extruded through a pull block, the guide rod pushes the rubber plug to extrude the lubricating oil through a supporting, at last, pour into on the transmission shaft of first antifriction bearing and transmission case from pipe discharge, paint lubricating oil to the transmission shaft, and lubricating oil enters into the transmission case along the transmission shaft, the guarantee paints the lubricating oil process simple and convenient to the transmission case, time saving and labor saving, the serious condition of wearing and tearing on the test bench can effectively be avoided the transmission structure top of helicopter main reducer test bench to this structure, the life of test bench transmission structure is improved, and can improve the radiating efficiency of test bench, and then improve the reliability of helicopter main reducer test bench transmission structure work.
The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can effectively avoid the serious condition of wearing and tearing on the test bench on the transmission structure top of helicopter main reducer test bench, improve test bench transmission structure's life to and can improve the radiating efficiency of test bench, and then improve the reliability of helicopter main reducer test bench transmission structure work.
Drawings
Fig. 1 is a schematic structural diagram of a transmission structure of a helicopter main reducer test bed provided by the present invention;
fig. 2 is a schematic structural diagram of a part a of a transmission structure of a helicopter main reducer test bed provided by the present invention;
fig. 3 is a schematic structural diagram of a transmission structure B of the helicopter main reducer test bed according to the present invention;
fig. 4 is a schematic structural diagram of a transmission structure C part of the helicopter main reducer test bed provided by the present invention.
In the figure: the device comprises a test bed 1, a driving motor 2, a transmission case 3, a first rolling bearing 4, a lubricating mechanism 5, a cylinder 51, a circular ring tube 52, a guide tube 53, a rubber plug 54, a supporting block 55, a guide rod 56, a hose 57, a heat dissipation mechanism 6, a supporting ring 61, a reciprocating screw rod 62, a threaded cylinder 63, a heat dissipation fan 64, a fixing rod 65, a driven sprocket 66, a driving sprocket 67, a chain 68, a limiting block 7, a moving groove 8, a dust screen 9, a cushion block 10, a pull block 11 and a sealing plug 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 therefore, should not be construed as limiting the present invention.
Referring to fig. 1-4, the transmission structure of the helicopter main reducer test bed comprises a test bed 1, a driving motor 2 and a transmission case 3, wherein the top end of a transmission shaft of the transmission case 3 penetrates through the upper surface of the test bed 1, a first rolling bearing 4 is arranged on an outer wall fixing sleeve of the transmission shaft of the transmission case 3, a connecting through hole is formed in the upper surface of the test bed 1, the hole wall of the through hole is fixedly connected with the outer wall of the first rolling bearing 4, a lubricating mechanism 5 is fixedly connected to the upper surface of the test bed 1, and a heat dissipation mechanism 6 is fixedly connected to the inner wall of the test bed 1.
The heat dissipation mechanism 6 comprises a support ring 61 fixedly connected with the inner wall of the test bed 1, the inner wall of the support ring 61 is connected with a reciprocating screw rod 62 in a rotating mode through a second rolling bearing, the bottom end of the reciprocating screw rod 62 is connected with the inner wall of the test bed 1 through a third rolling bearing, a rod wall of the reciprocating screw rod 62 is connected with a thread cylinder 63 in a threaded mode, an outer wall of the thread cylinder 63 is fixedly connected with a heat dissipation fan 64, a fixed rod 65 is fixedly connected with the top end of the reciprocating screw rod 62, a rod wall of the fixed rod 65 is fixedly connected with a driven sprocket 66, a driving sprocket 67 is fixedly sleeved on the outer wall of a transmission shaft of the transmission box 3, a chain 68 is sleeved on the outer walls of the driving sprocket 67 and the driven sprocket 66 together, the heat dissipation efficiency of.
The outer wall fixedly connected with stopper 7 of a screw thread section of thick bamboo 63, the outer wall of test bench 1 set up with stopper 7 matched with shifting chute 8, stopper 7 and shifting chute 8 can ensure that a screw thread section of thick bamboo 63 reciprocates stably.
Rectangular heat dissipation holes are formed in the outer wall of the test bed 1, a dust screen 9 is fixedly connected to the hole wall of each heat dissipation hole, and the dust screen 9 can prevent dust from entering the test bed 1, so that the interior of the test bed 1 is clean.
One end of the guide rod 56, which is far away from the supporting block 55, is fixedly connected with a pulling block 11, and the pulling block 11 is convenient for pushing the guide rod 56.
The upper surface of the cylinder 51 is provided with a feeding hole, the hole wall of the feeding hole is in threaded connection with a sealing plug 12, and the sealing plug 12 can guarantee the connection tightness of the cylinder 51.
The heat dissipation fan 64 includes fan blades and a motor, the outer wall of the motor is fixedly connected with a housing, the driving motor 2 and the heat dissipation fan 64 are both electrically connected with an external power supply through a control switch, and the power supply amount can be guaranteed to be supported during operation.
In the utility model, when the test bed 1 tests the helicopter main reducer, at first the driving motor 2 is started, the driving motor 2 rotates the transmission shaft of the transmission case 3, the transmission shaft of the transmission case 3 rotates the fixing rod 65 through the driving sprocket 67, the chain 68 and the driven sprocket 66, the fixing rod 65 rotates the reciprocating screw rod 62, the reciprocating screw rod 62 moves the threaded cylinder 63 up and down, thereby realizing the up and down movement of the cooling fan 64, the blowing range of the cooling fan 64 is enlarged, the heat of the internal parts of the test bed 1 is rapidly dissipated and discharged through the heat dissipation holes, the metal characteristics of the internal parts of the test bed 1 are prevented from being changed due to high temperature, in addition, by adding lubricating oil into the cylindrical cylinder 51, then extruding the guide rod 56 through the pulling block 11, the guide rod 56 pushes the rubber plug 54 to extrude the lubricating oil through the supporting block 55, the lubricating oil enters the annular pipe 52 through the hose 57, at last, the guide pipe 53 is discharged and poured on, lubricating oil is paintd the transmission shaft, and lubricating oil enters into transmission case 3 along the transmission shaft, and the guarantee paints the lubricating oil process simple and convenient to transmission case 3, labour saving and time saving, and this structure can effectively avoid the serious condition of the transmission structure top of helicopter main reducer test bench wearing and tearing on the test bench, improves test bench transmission structure's life to and can improve the radiating efficiency of test bench, and then improve the reliability of helicopter main reducer test bench transmission structure work.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. Transmission structure of helicopter main reducer test bench, including test bench (1), driving motor (2) and transmission case (3), its characterized in that, the upper surface of test bench (1) is passed on the transmission shaft top of transmission case (3), the outer wall fixed sleeving machine of the transmission shaft of transmission case (3) has first antifriction bearing (4), connect the through-hole has been seted up to the upper surface of test bench (1), and the pore wall of through-hole and the outer wall fixed connection of first antifriction bearing (4), the upper surface fixed connection of test bench (1) is connected with lubricated mechanism (5), the inner wall fixedly connected with heat dissipation mechanism (6) of test bench (1).
2. The transmission structure of the helicopter main reducer test stand according to claim 1, the lubricating mechanism (5) comprises a cylinder (51) and a circular ring pipe (52) which are fixedly connected with the upper surface of the test bed (1), the inner wall of the circular ring pipe (52) is fixedly communicated with two symmetrically distributed guide pipes (53), the inner wall of the cylinder (51) is movably connected with a rubber plug (54), the inner wall of the rubber plug (54) is fixedly connected with a supporting block (55), a guide rod (56) is fixedly connected with one side of the supporting block (55) far away from the rubber plug (54), the side wall of the conduit (53) passes through the side wall of the cylinder (51) and extends outwards, the output end of the cylinder (51) is fixedly communicated with a hose (57), and one end, far away from the cylinder (51), of the hose (57) is fixedly communicated with the outer wall of the circular tube (52).
3. The transmission structure of the helicopter main reducer test bed according to claim 2, characterized in that the heat dissipation mechanism (6) comprises a support ring (61) fixedly connected with the inner wall of the test bed (1), the inner wall of the support ring (61) is rotatably connected with a reciprocating lead screw (62) through a second rolling bearing, the bottom end of the reciprocating lead screw (62) is fixedly connected with the inner wall of the test bed (1) through a third rolling bearing, the rod wall of the reciprocating lead screw (62) is in threaded connection with a threaded cylinder (63), the outer wall of the threaded cylinder (63) is fixedly connected with a heat dissipation fan (64), the top end of the reciprocating lead screw (62) is fixedly connected with a fixing rod (65), the rod wall of the fixing rod (65) is fixedly connected with a driven sprocket (66), the outer wall of the transmission shaft of the transmission case (3) is fixedly sleeved with a driving sprocket (67), and chains (68) are sleeved on the outer walls of the driving chain wheel (67) and the driven chain wheel (66) together.
4. The transmission structure of the helicopter main reducer test bed according to claim 3, characterized in that the outer wall of the threaded cylinder (63) is fixedly connected with a limit block (7), and the outer wall of the test bed (1) is provided with a moving groove (8) matched with the limit block (7).
5. The transmission structure of the helicopter main reducer test bed according to claim 1, characterized in that rectangular heat dissipation holes are formed in the outer wall of the test bed (1), and a dust screen (9) is fixedly connected to the hole walls of the heat dissipation holes.
6. The transmission structure of the helicopter main reducer test bed according to claim 1, characterized in that cushion blocks (10) are fixedly connected to four corners of the lower surface of the test bed (1).
7. The transmission structure of the helicopter main reducer test bed according to claim 2, characterized in that one end of the guide rod (56) far away from the supporting block (55) is fixedly connected with a pull block (11).
8. The transmission structure of the helicopter main reducer test bed according to claim 2, characterized in that the upper surface of the cylinder (51) is provided with a feeding hole, and the hole wall of the feeding hole is in threaded connection with a sealing plug (12).
9. The transmission structure of the helicopter main reducer test bed according to claim 3, characterized in that the heat dissipation fan (64) comprises fan blades and a motor, and an outer wall of the motor is fixedly connected with a shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020191206.8U CN211347381U (en) | 2020-02-21 | 2020-02-21 | Transmission structure of helicopter main reducer test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020191206.8U CN211347381U (en) | 2020-02-21 | 2020-02-21 | Transmission structure of helicopter main reducer test bed |
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| CN211347381U true CN211347381U (en) | 2020-08-25 |
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| CN202020191206.8U Active CN211347381U (en) | 2020-02-21 | 2020-02-21 | Transmission structure of helicopter main reducer test bed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923457A (en) * | 2021-02-16 | 2021-06-08 | 王雯 | 5G computer lab heat abstractor |
| CN113074379A (en) * | 2021-03-30 | 2021-07-06 | 龙南鑫坤无机新材料有限公司 | Equipment for removing nitrogen oxide at high temperature |
-
2020
- 2020-02-21 CN CN202020191206.8U patent/CN211347381U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923457A (en) * | 2021-02-16 | 2021-06-08 | 王雯 | 5G computer lab heat abstractor |
| CN113074379A (en) * | 2021-03-30 | 2021-07-06 | 龙南鑫坤无机新材料有限公司 | Equipment for removing nitrogen oxide at high temperature |
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