CN209264285U - Axle sleeve underwater test machine - Google Patents

Abstract

A kind of axle sleeve underwater test machine, including driving device, fixed disk, intermediate transmission unit, board, and it is set to power reception unit, torque sensing unit, power take-off unit and load test unit on board, intermediate transmission unit is connected between fixed disk and power reception unit；Load test unit includes two test brackets being oppositely arranged, two 3rd bearings being respectively arranged on two test brackets, the limit pressure unit across the test shaft of two 3rd bearings, positioned at two 3rd bearings, the bottom of limit pressure unit, which abuts, load bar, the bottom of load bar, which abuts, pressure sensor, the bottom of pressure sensor is connect with an oil cylinder, it is provided with the first sealing unit between test bracket and load bar, is provided with the second sealing unit between 3rd bearing and test shaft.Underwater or water surface operating condition can be so simulated, the authenticity of experimental enviroment is improved.

Description

Axle sleeve underwater test machine

Technical field

The utility model relates to sliding bear experiment technical field, especially a kind of axle sleeve underwater test machine.

Background technique

Sliding bearing needs to detect it by test equipment after completing such as graphite bushing or steel base copper alloy axle sleeve Lubricity and wearability.The situation that existing test equipment is only capable of to sliding bearing in air environment is tested, and some Special sliding bearing is applied to contact with water for a long time on ship or on drilling platforms.There is presently no be able to carry out underwater examination The testing equipment tested.

Utility model content

Underwater or water surface operating condition axle sleeve underwater test machine can be simulated in view of this, the present invention provides a kind of, To solve the above problems.

A kind of axle sleeve underwater test machine, including driving device, fixed disk (30), intermediate transmission unit, board (110), with And it is set to power reception unit (60), torque sensing unit (70), power take-off unit (80) and load on board (110) Test unit (90), fixed disk (30) are connect with driving device, and intermediate transmission unit is connected to fixed disk (30) and power reception Between unit (60), being horizontally disposed on board (110) has substrate (120), power reception unit (60), torque sensing unit (70), power take-off unit (80) and load test unit (90) are all set on substrate (120) and sequentially coaxially connect；Load Test unit (90) includes two test brackets being oppositely arranged (92), be respectively arranged on two test brackets (92) two 3rd bearing (93), across the test shaft (91) of two 3rd bearings (93), the limit being located at two 3rd bearings (93) Position pressure unit (94) limits and offers accommodation groove in the middle part of pressure unit (94), and sliding bearing (200) is located in accommodation groove, It tests shaft (91) and passes through sliding bearing (200), the bottom of limit pressure unit (94), which also abuts, load bar (97), load bar (97) bottom, which abuts, to be had pressure sensor (150), and the bottom of pressure sensor (150) is connect with an oil cylinder (130), test branch It is provided between frame (92) and load bar (97) the first sealing unit (991), between 3rd bearing (93) and test shaft (91) It is provided with the second sealing unit (992), forms water cavity between test bracket (92) and two 3rd bearings (93), filled in water cavity There is water, the height of the water surface is greater than the height of the bottom of test shaft (91).

Further, first sealing unit (991) and the second sealing unit (992) include being sheathed on load bar (97) it or tests the sealing ring fixing sleeve on shaft (91) and is located at sealing ring fixing sleeve and load bar (97) or test shaft (91) lip-type packing between.

Further, the intermediate transmission unit includes waving gear unit (40) and rotation gear unit (140), is waved Gear unit (40) include the mounting disc (41) being flexibly connected with fixed disk (30), be arranged radially in it is inclined on mounting disc (41) Heart interconnecting piece (42), connecting rod (43) are used to fix on the connecting rod that the first end of connecting rod (43) is fixed on eccentric interconnecting piece (42) Portion (44) and be set to connecting rod (43) second end swing output precision (50), swinging output precision (50) has and connecting rod (43) rack gear (52) of second end connection and with rack gear (52) meshed gears (53), gear (53) movably connects with power It is coaxially connected to receive unit (60)；Rotating gear unit (140) includes the first belt pulley being flexibly connected with fixed disk (30) (141), it the second belt pulley (142) for being flexibly connected with power reception unit (60) and is connected to the first belt pulley (141) and the Driving belt (143) between two belt pulleys (142).

It further, further include Speed sensing component, Speed sensing component includes the circumference for being set to fixed disk (30) At least one magnetic patch (111) on face and the Magnetic Induction block (112) being relatively arranged on the outside of the circumference side of fixed disk (30).

Further, the eccentric interconnecting piece (42) for waving gear unit (40) has in rectangle and is arranged radially in Mounting blocks (421) in mounting disc (41), several screws pass through mounting blocks (421) and are threadedly coupled with mounting disc (41), install The middle part of block (421) offers accommodation groove (422) along the radial direction of mounting disc (41), and accommodation groove is provided with screw rod in (422) (423), the first end of screw rod (423) and the first end of mounting blocks (421) are rotatablely connected, and second end passes through mounting blocks (421) Second end, the second end of screw rod (423) are fixedly installed knob (425), are provided in accommodation groove (422) sliding block (424), sliding Along the threaded hole that has been arranged radially of mounting disc (41), screw rod (423) engages with the threaded hole of sliding block (424) at the middle part of block (424), The first end of connecting rod (43) is connect by connecting rod fixed part (44) with sliding block (424).

Further, the first end of the connecting rod (43) is connected with the connection ring (431) of circular ring shape, connecting rod fixed part (44) Including attachment base (441), connecting shaft (442), nut (443), bearing (444) and upper cover (445), the circumference of attachment base (441) Link slot is offered on side, connection ring (431) is located in link slot, and upper cover (445) covers connection ring (431) from top and connects The link slot of joint chair (441)；Attachment base is provided in the axial direction with through-hole in the middle part of (441)；Bearing (444) is located at attachment base (441) Through-hole in；The first end of connecting shaft (442) is fixedly connected with the top surface of sliding block (424), and second end, which passes through through-hole and is located at, to be connected The outside of joint chair (441) and upper cover (445), the middle part of connecting shaft (442) is by bearing (444) rotating support；Connecting shaft (442) is remote External screw thread, the second end screw thread of nut (443) and connecting shaft (442) are provided on the lateral wall of second end from sliding block (424) Connection.

Further, the mounting blocks (421) are also provided with several and accommodation groove (422) even far from the side of connecting rod (43) Logical threaded hole is threaded with lock-screw (426) in threaded hole, and lock-screw (426) is actively supported with sliding block (424) It connects.

Further, the second end of the connecting rod (43) offers connecting hole (432), and it includes logical for swinging output precision (50) Cross the link block (51) that shaft is rotatablely connected with the connecting hole (432) of connecting rod (43), the rack gear being fixedly connected with link block (51) (52), with rack gear (52) meshed gears (53), for sliding groove (54) that the movement of rack gear (52) is oriented to and is limited.

Further, screw hole is offered in the middle part of the second end of test shaft (91) separate power take-off unit (80) (911), it is additionally provided with end cap (95) on the outside of the second end of test shaft (91) separate power take-off unit (80), end cap (95) Middle part offer through-hole, a screw passes through the through-hole of end cap (95) and is threadedly coupled with the screw hole (911) of test shaft (91).

Further, limit pressure unit (94) is equipped with temperature sensor (98).

Compared with prior art, the axle sleeve underwater test machine of the utility model includes driving device, fixed disk (30), centre Gear unit, board (110), and be set on board (110) power reception unit (60), torque sensing unit (70), Power take-off unit (80) and load test unit (90), fixed disk (30) are connect with driving device, the connection of intermediate transmission unit Between fixed disk (30) and power reception unit (60), being horizontally disposed on board (110) has substrate (120), power reception list First (60), torque sensing unit (70), power take-off unit (80) and load test unit (90) are all set on substrate (120) And it sequentially coaxially connects；Load test unit (90) includes two test brackets being oppositely arranged (92), is respectively arranged at two Two 3rd bearings (93) on test bracket (92), are located at two at the test shaft (91) for passing through two 3rd bearings (93) Limit between 3rd bearing (93) presses unit (94), offers accommodation groove, sliding axle in the middle part of limit pressure unit (94) It holds (200) to be located in accommodation groove, test shaft (91) passes through sliding bearing (200), and the bottom of limit pressure unit (94) is also supported Be connected to load bar (97), the bottom of load bar (97), which abuts, to be had pressure sensor (150), the bottom of pressure sensor (150) with One oil cylinder (130) connection, is provided with the first sealing unit (991), 3rd bearing between test bracket (92) and load bar (97) (93) it is provided with the second sealing unit (992) between test shaft (91), test bracket (92) and two 3rd bearings (93) Between form water cavity, water is filled in water cavity, the height of the water surface is greater than the height of the bottom of test shaft (91).It so being capable of mould Quasi- underwater or water surface operating condition, improves the authenticity of experimental enviroment.

Detailed description of the invention

The embodiments of the present invention are described below in conjunction with attached drawing, in which:

Fig. 1 is the schematic top plan view of axle sleeve underwater test machine provided by the utility model.

Fig. 2 is the partial side schematic view for waving gear unit in Fig. 1.

Fig. 3 is the partial sectional view for waving gear unit in Fig. 1.

Fig. 4 is the side schematic view of another part for waving gear unit in Fig. 1.

Fig. 5 be Fig. 1 in power reception unit, torque sensing unit, power take-off unit and load test unit side Face cross-sectional view.

Fig. 6 is the partial schematic diagram on the top of the load test unit in Fig. 5.

Fig. 7 is the partial schematic diagram of the lower part of the load test unit in Fig. 5.

Fig. 8 is the side schematic view of the limit pressure unit in Fig. 6.

Fig. 9 is the scheme of installation of the rotation gear unit in Fig. 1.

Specific embodiment

Specific embodiment of the utility model is further elaborated below based on attached drawing.It should be understood that The explanation of the utility model embodiment is not used to herein to limit the protection scope of the utility model.

Referring to FIG. 1, axle sleeve underwater test machine provided by the utility model includes driving device, fixed disk 30, intermediate biography Moving cell, board 110, and the power reception unit 60, torque sensing unit 70, the power output list that are set on board 110 Member 80 and load test unit 90.

Intermediate transmission unit is to wave gear unit 40 or rotation gear unit 140.

Driving device includes motor 10 and reduction gearbox 20.

Reduction gearbox 20 is connect by transmission gear or transmission belt with motor 10, and according to scheduled reduction ratio to motor 10 Output slow down.

Fixed disk 30 is fixedly connected on the output shaft of reduction gearbox 20, and intermediate transmission unit is connected to fixed disk 30 and power Between receiving unit 60.It waves gear unit 40 and rotation gear unit 140 is selectively connected to fixed disk 30 and power Between receiving unit 60.

Being horizontally disposed on board 110 has substrate 120, power reception unit 60, torque sensing unit 70, power take-off unit 80 and load test unit 90 be all set on substrate 120 and sequentially coaxially connect.

Sliding bearing is set in load test unit 90.

Gear unit 40 is waved to include the mounting disc 41 being flexibly connected with fixed disk 30, be arranged radially in mounting disc 41 Eccentric interconnecting piece 42, connecting rod 43, the connecting rod fixed part 44 for being fixed on the first end of connecting rod 43 on eccentric interconnecting piece 42 And it is set to the swing output precision 50 of the second end of connecting rod 43.

Swing output precision 50 have the rack gear 52 that is connect with the second end of connecting rod 43 and with 52 meshed gears 53 of rack gear. Gear 53 and power reception unit 60 are coaxially connected.

Please also refer to Fig. 9, rotation gear unit 140 include the first belt pulley 141 being flexibly connected with fixed disk 30 and The second belt pulley 142 and be connected between the first belt pulley 141 and the second belt pulley 142 that power reception unit 60 is flexibly connected Driving belt 143.

Axle sleeve underwater test machine provided by the utility model further includes Speed sensing component, and Speed sensing component includes setting In at least one magnetic patch 111 on the circumference side of fixed disk 30 and the magnetic on the outside of the circumference side for being relatively arranged on fixed disk 30 Property sensor block 112.

Fig. 2 and Fig. 3 is please referred to, the eccentric interconnecting piece 42 for waving gear unit 40 has in rectangle and is arranged radially in peace Mounting blocks 421 in sabot 41, several screws pass through mounting blocks 421 and are threadedly coupled with mounting disc 41.The middle part of mounting blocks 421 Accommodation groove 422 is offered along the radial direction of mounting disc 41, screw rod 423, the first end and peace of screw rod 423 are provided in accommodation groove 422 The first end rotation connection of block 421 is filled, second end passes through the second end of mounting blocks 421, and the second end of screw rod 423 is fixedly installed Operation portion, such as square opening or knob 425.The first end and second end of mounting blocks 421 are respectively connected with end cap 428.End cap 428 and screw rod It is equipped between 423 first end or second end and is equipped with bushing 429.

A sliding block 424 is additionally provided in accommodation groove 422, the middle part of sliding block 424 has been arranged radially screw thread along mounting disc 41 Hole, screw rod 423 are engaged with the threaded hole of sliding block 424, and the first end of connecting rod 43 is connect by connecting rod fixed part 44 with sliding block 424.

Mounting blocks 421 are also provided with several threaded holes being connected to accommodation groove 422 far from the side of connecting rod 43, in threaded hole It is threaded with lock-screw 426, lock-screw 426 is locked the abutting of Shi Keyu sliding block 424 and locked, and anti-limited slip block 424 continues to move It is dynamic.The middle part of lock-screw 426 is threaded with locking nut 427, and locking nut 427 is located at for limiting lock-screw 426 Depth in threaded hole.

The first end of connecting rod 43 is connected with the connection ring 431 of circular ring shape.Connecting rod fixed part 44 includes attachment base 441, connection Axis 442, nut 443, bearing 444 and upper cover 445.Offer link slot on the circumference side of attachment base 441, connection ring 431 In link slot, upper cover 445 covers the link slot of connection ring 431 and attachment base 441 from top；The middle part of attachment base 441 is along axis To the i.e. direction vertical with connecting rod 43 offers through-hole；Bearing 444 is located in the through-hole of attachment base 441, and the of connecting shaft 442 One end is fixedly connected with the top surface of sliding block 424, and second end passes through through-hole and is located at the outside of attachment base 441 and upper cover 445, connection The middle part of axis 442 is by 444 rotating support of bearing；Outer spiral shell is provided on the lateral wall of second end of the connecting shaft 442 far from sliding block 424 Line, nut 443 are threadedly coupled with the second end of connecting shaft 442.

Mounting blocks 421 are also provided with several threaded holes being connected to accommodation groove 422 far from the side of connecting rod 43, in threaded hole It is threaded with locking nut 426, locking nut 426 is locked the abutting of Shi Keyu sliding block 424 and locked, and anti-limited slip block 424 continues to move It is dynamic.

So adjustable eccentric position of the sliding block 424 in mounting disc 41, and then the amplitude of oscillation for swinging output precision 50 is controlled, To which to the test material to be worked with the different amplitudes of oscillation, such as sliding bearing carries out rolling test.

Referring to FIG. 4, the second end of connecting rod 43 offers connecting hole 432.Swing output precision 50 include by shaft with Link block 51 that the connecting hole 432 of connecting rod 43 is rotatablely connected, is engaged with rack gear 52 rack gear 52 being fixedly connected with link block 51 Gear 53, the sliding groove 54 for being oriented to and being limited for the movement to rack gear 52 and what is be set in sliding groove 54 first roll Supporting element 55.

The first end of link block 51 has been provided projectingly convex block, and shaft hole is offered on convex block, and a shaft passes through connecting hole 432 And shaft hole.The second end of link block 51 is connect by the way that several screws are vertical with the first end of rack gear 52.

Rack gear 52 is at least partially situated in sliding groove 54, and the first side of rack gear 52 towards gear 53 is provided with several One tooth socket, the second side far from gear 53 are contacted with the first rolling support 55.

Referring to FIG. 5, the top of sliding groove 54 is provided with cover board 541, rack gear 52 is located at the setting of the part in sliding groove 54 There is spacing block set 521, spacing block set 521 is abutted with the cover board 541 of sliding groove 54 to prevent rack gear 52 upwards from sliding groove 54 It is detached from.

It is provided with several the second tooth sockets engaged with the first tooth socket on the circumference side of gear 53, is set at the axle center of gear 53 It is equipped with gear shaft 531, gear shaft 531 and power reception unit 60 are coaxially connected.

First rolling support 55 includes support frame 551 and ball 552, is equally spaced offered on support frame 551 several Mounting groove, the rolling of ball 552 are set in the mounting groove of support frame 551.The top of ball 552 protrudes from the top of support frame 551 The second side in face, rack gear 52 is abutted with the rolling of ball 552.So reduce the frictional force when movement of rack gear 52.

Referring to FIG. 5, power reception unit 60 includes bracket, the first bearing 62 being set on bracket, passes through first axle It holds 62 connection shaft 61 and is fixedly installed on the first flange disk 63 of the connection one end of shaft 61 far from gear 53.

Torque sensing unit 70 is including bracket, the torque sensor 72 being set on bracket and across torque sensor 72 Central rotating shaft 71, the first end of central rotating shaft 71 towards power reception unit 60 are provided with second connect with first flange disk 63 Ring flange 711, central rotating shaft 71 are provided with third ring flange 712 far from the second end of power reception unit 60.

Power take-off unit 80 includes bracket, the second bearing 82 being set on bracket and the output across second bearing 82 Shaft 81.The first end of output revolving shaft 81 towards torque sensing unit 70 is provided with the 4th method connecting with third ring flange 712 Blue disk 813 offers rectangular opening 811 in the middle part of the second end far from torque sensing unit 70, opposite two sides in rectangular opening 811 Correspondence offers through-hole on wall, and a connecting pin 812 is located in through-hole.

Referring to FIG. 6, load test unit 90 includes two test brackets 92 being oppositely arranged, is respectively arranged at two examinations Test two 3rd bearings 93 on bracket 92, across two 3rd bearings 93 test shaft 91, be located at two 3rd bearings 93 Between limit press unit 94.

The first end for testing shaft 91 towards power take-off unit 80 is equipped with rectangle interconnecting piece, and rectangle connecting portion is in rectangle In hole 811, rectangle interconnecting piece, which extends radially through, is provided with pin hole, and connecting pin 812 passes through pin hole, so that test shaft 91 Rectangle interconnecting piece is fixedly connected with the rectangular opening 811 of output revolving shaft 81.

Screw hole 911 is offered in the middle part of test second end of the shaft 91 far from power take-off unit 80, test shaft 91 is remote End cap 95 is additionally provided on the outside of second end from power take-off unit 80, the middle part of end cap 95 offers through-hole, and a screw is worn It crosses the through-hole of end cap 95 and is threadedly coupled with the screw hole 911 of test shaft 91.

The middle part of limit pressure unit 94 offers accommodation groove, and sliding bearing 200 is located in accommodation groove, and test shaft 91 is worn Cross sliding bearing 200.

It is additionally provided with temperature sensor 98 on limit pressure unit 94, temperature sensor 98 detects the temperature of sliding bearing 200. Temperature by detecting sliding bearing 200 can reflect the greasy property of sliding bearing 200.

The bottom of limit pressure unit 94, which also abuts, load bar 97, the position of board 110 and the corresponding load bar 97 of substrate 120 It sets and offers through-hole, load bar 97 actively passes through the through-hole of board 110 and substrate 120.Two test brackets 92 and load bar The second rolling support 921 is provided between 97, between board 110 and load bar 97 and between substrate 120 and load bar 97, The structure of second rolling support 921 is identical as the structure of the first rolling support 55.

Scale 993 is provided on the lateral surface of test bracket 92 far from power take-off unit 80, test shaft 91 is separate One end of power take-off unit 80 is connected with pointer 994 and drives pointer 994 to be directed toward on scale 993 not when test shaft 91 is waved Same position, the current amplitude of oscillation is learnt convenient for user.

Referring to FIG. 7, the downward vertical of board 110 is connected with several columns 113, the bottom of several columns 113 is connected with Oil cylinder fixed plate 133 is equipped with an oil cylinder 130 in oil cylinder fixed plate 133, is provided with oil inlet 131 and oil outlet on oil cylinder 130 132.The output shaft of oil cylinder 130 is towards board 110 and output the tip of the axis is connected with mounting blocks 134, is connected on mounting blocks 134 Pressure sensor 150, pressure sensor 150 have been provided projectingly far from the side of oil cylinder 130 and have abutted column 151, abut column 151 and add Bar 97 is carried to abut far from one end of limit pressure unit 94.The lateral wall at the top of column 113 is equipped with external screw thread, board 110 And internal screw thread is equipped in the through-hole of substrate 120, the internal screw thread screw thread of the external screw thread and board 110 and substrate 120 of column 113 is matched It closes.

Referring to FIG. 8, limit pressure unit 94 includes two gripping blocks 941 being oppositely arranged up and down and several passes through two The locking member 942 of gripping block 941.The middle part of the opposite side of two gripping blocks 941 offers arc groove, and two arc grooves are spelled It connects and to form round or approximate circle accommodation groove, sliding bearing 200 and be located in accommodation groove, test shaft 91 is across sliding bearing 200。

The first sealing unit 991,3rd bearing 93 and test shaft 91 are provided between test bracket 92 and load bar 97 Between be provided with the second sealing unit 992.First sealing unit 991 and the second sealing unit 992 include being sheathed on load bar 97 or test shaft 91 on sealing ring fixing sleeve and positioned at sealing ring fixing sleeve and load bar 97 or test shaft 91 between Lip-type packing.At least side of lip-type packing has lip, and lip deforms under the action of hydraulic coupling, is close to lip close Cover realizes sealing.Hydraulic coupling is higher, and lip obtains tighter with sealing face paste, after lip portion abrasion, has certain automatic The ability of compensation.

The side of the sealing ring fixing sleeve being sheathed on load bar 97 towards limit pressure unit 94 is equipped with the first sealing ring The side of accommodation groove, the sealing ring fixing sleeve being sheathed in 3rd bearing 93 towards limit pressure unit 94 is equipped with the second sealing ring Accommodation groove.Lip-type packing is embedded in the first sealing ring accommodation groove and the second sealing ring accommodation groove.

Water cavity is so formed between test bracket 92 and two 3rd bearings 93, water cavity is filled with water 300, the height of the water surface Degree is greater than the height of the bottom of test shaft 91, i.e., can simulate when between the bottom and top that the water surface is located at test shaft 91 Water surface operating condition can simulate underwater State when water surface elevation is greater than the height at the top of test shaft 91.

Compared with prior art, the axle sleeve underwater test machine of the utility model includes driving device, fixed disk 30, intermediate biography Moving cell, board 110, and the power reception unit 60, torque sensing unit 70, the power output list that are set on board 110 Member 80 and load test unit 90, fixed disk 30 are connect with driving device, and intermediate transmission unit is connected to fixed disk 30 and power Between receiving unit 60, being horizontally disposed on board 110 has substrate 120, power reception unit 60, torque sensing unit 70, power Output unit 80 and load test unit 90 are all set on substrate 120 and sequentially coaxially connect；Load test unit 90 includes Two test brackets 92 being oppositely arranged, pass through two at two 3rd bearings 93 being respectively arranged on two test brackets 92 The test shaft 91 of 3rd bearing 93, the limit pressure unit 94 between two 3rd bearings 93, limit pressure unit 94 Middle part offer accommodation groove, sliding bearing 200 is located in accommodation groove, test shaft 91 pass through sliding bearing 200, limit pressure The bottom of unit 94, which also abuts, load bar 97, and the bottom of load bar 97, which abuts, pressure sensor 150, pressure sensor 150 Bottom connect with an oil cylinder 130, the first sealing unit 991,3rd bearing are provided between test bracket 92 and load bar 97 It is provided with the second sealing unit 992 between 93 and test shaft 91, is formed between test bracket 92 and two 3rd bearings 93 Water cavity, water is filled in water cavity, and the height of the water surface is greater than the height of the bottom of test shaft 91.Underwater or water can so be simulated Face operating condition improves the authenticity of experimental enviroment.

The above is only the preferred embodiments of the utility model, are not used to the limitation protection scope of the utility model, any Modification, equivalent replacement or improvement within the spirit of the present invention etc. are all covered in the scope of the claims of the utility model.

Claims (10)

1. a kind of axle sleeve underwater test machine, for carrying out underwater test to a sliding bearing (200), it is characterised in that: including driving Dynamic device, fixed disk (30), intermediate transmission unit, board (110), and the power reception unit being set on board (110) (60), torque sensing unit (70), power take-off unit (80) and load test unit (90), fixed disk (30) and driving device Connection, intermediate transmission unit are connected between fixed disk (30) and power reception unit (60), and being horizontally disposed on board (110) has Substrate (120), power reception unit (60), torque sensing unit (70), power take-off unit (80) and load test unit (90) it is all set on substrate (120) and sequentially coaxially connects；Load test unit (90) includes two tests being oppositely arranged Bracket (92), passes through two 3rd bearings (93) at two 3rd bearings (93) being respectively arranged on two test brackets (92) Test shaft (91), the limit that is located between two 3rd bearings (93) press unit (94), limit pressure unit (94) Middle part offers accommodation groove, and sliding bearing (200) is located in accommodation groove, and test shaft (91) passes through sliding bearing (200), limit The bottom of pressure unit (94), which also abuts, to be had load bar (97), and the bottom of load bar (97), which abuts, to be had pressure sensor (150), is pressed The bottom of force snesor (150) is connect with an oil cylinder (130), and it is close to be provided with first between test bracket (92) and load bar (97) It seals unit (991), is provided with the second sealing unit (992), test bracket between 3rd bearing (93) and test shaft (91) (92) water cavity is formed between two 3rd bearings (93), water is filled in water cavity, and the height of the water surface is greater than test shaft (91) Bottom height.

2. axle sleeve underwater test machine as described in claim 1, it is characterised in that: first sealing unit (991) and second Sealing unit (992) includes being sheathed on load bar (97) or testing the sealing ring fixing sleeve on shaft (91) and be located at sealing ring Lip-type packing between fixing sleeve and load bar (97) or test shaft (91).

3. axle sleeve underwater test machine as described in claim 1, it is characterised in that: the intermediate transmission unit includes waving transmission Unit (40) and rotation gear unit (140), waving gear unit (40) includes the mounting disc being flexibly connected with fixed disk (30) (41), eccentric interconnecting piece (42) on mounting disc (41), connecting rod (43) are arranged radially in, for by the first end of connecting rod (43) The swing output precision of the connecting rod fixed part (44) that is fixed on eccentric interconnecting piece (42) and the second end for being set to connecting rod (43) (50), swinging output precision (50) has the rack gear (52) connecting with the second end of connecting rod (43) and the tooth engaged with rack gear (52) It takes turns (53), gear (53) is movably coaxially connected with power reception unit (60)；Rotating gear unit (140) includes and fixation The first belt pulley (141) that disk (30) is flexibly connected, the second belt pulley (142) for being flexibly connected with power reception unit (60) and The driving belt (143) being connected between the first belt pulley (141) and the second belt pulley (142).

4. axle sleeve underwater test machine as claimed in claim 3, it is characterised in that: further include Speed sensing component, Speed sensing Component includes at least one magnetic patch (111) being set on the circumference side of fixed disk (30) and is relatively arranged on fixed disk (30) Circumference side on the outside of Magnetic Induction block (112).

5. axle sleeve underwater test machine as claimed in claim 3, it is characterised in that: the eccentric of gear unit (40) that wave connects Socket part (42) has the mounting blocks (421) for being in rectangle and being arranged radially on mounting disc (41), and several screws pass through mounting blocks (421) and with mounting disc (41) it is threadedly coupled, the middle part of mounting blocks (421) offers accommodation groove along the radial direction of mounting disc (41) (422), it is provided with screw rod (423) in accommodation groove (422), the first end of screw rod (423) and the first end of mounting blocks (421) rotate Connection, second end pass through the second end of mounting blocks (421), and the second end of screw rod (423) is fixedly installed knob (425), accommodate It is provided in slot (422) sliding block (424), the middle part of sliding block (424) has been arranged radially threaded hole, screw rod along mounting disc (41) (423) it is engaged with the threaded hole of sliding block (424), the first end of connecting rod (43) is connected by connecting rod fixed part (44) and sliding block (424) It connects.

6. axle sleeve underwater test machine as claimed in claim 5, it is characterised in that: the first end of the connecting rod (43) is connected with circle The connection ring (431) of annular, connecting rod fixed part (44) includes attachment base (441), connecting shaft (442), nut (443), bearing (444) and upper cover (445) link slot, is offered on the circumference side of attachment base (441), connection ring (431) is located in link slot, Upper cover (445) covers the link slot of connection ring (431) and attachment base (441) from top；It is opened along axial direction at the middle part of attachment base (441) Equipped with through-hole；Bearing (444) is located in the through-hole of attachment base (441)；The first end of connecting shaft (442) and the top of sliding block (424) Face is fixedly connected, and second end passes through through-hole and is located at the outside of attachment base (441) and upper cover (445), the middle part of connecting shaft (442) By bearing (444) rotating support；Connecting shaft (442) is provided with external screw thread, spiral shell on the lateral wall far from the second end of sliding block (424) Female (443) are threadedly coupled with the second end of connecting shaft (442).

7. axle sleeve underwater test machine as claimed in claim 5, it is characterised in that: the mounting blocks (421) are far from connecting rod (43) Side be also provided with several threaded holes being connected to accommodation groove (422), be threaded with lock-screw (426) in threaded hole, Lock-screw (426) is actively abutted with sliding block (424).

8. axle sleeve underwater test machine as claimed in claim 3, it is characterised in that: the second end of the connecting rod (43) offers company It connects hole (432), swinging output precision (50) includes the link block being rotatablely connected by the connecting hole (432) of shaft and connecting rod (43) (51), the rack gear (52) that is fixedly connected with link block (51), with rack gear (52) meshed gears (53), for rack gear (52) The mobile sliding groove (54) for being oriented to and being limited.

9. axle sleeve underwater test machine as described in claim 1, it is characterised in that: the test shaft (91) is far from power output It is offered in the middle part of the second end of unit (80) screw hole (911), the second of test shaft (91) separate power take-off unit (80) It is additionally provided on the outside of end end cap (95), through-hole is offered in the middle part of end cap (95), a screw passes through the through-hole of end cap (95) simultaneously It is threadedly coupled with the screw hole (911) of test shaft (91).

10. axle sleeve underwater test machine as described in claim 1, it is characterised in that: limit pressure unit (94) is equipped with Temperature sensor (98).