CN210119350U - Running-in test device for rail train belt shaft gear box - Google Patents

Abstract

A running-in test device for a gear box with a shaft of a rail train belongs to the technical field of rail transit. Including base, a pair of supporting seat of installing in the base top and being bilateral symmetry setting, establish motor and gear box fixing device on the base, characteristics: the supporting seat slides along the left and right direction on the base, the motor is installed on the lifting device, the lifting device slides along the left and right direction and the front and back direction on the base respectively, the gear box fixing device slides along the left and right direction and the front and back direction respectively, the supporting seat is provided with a pulley and a movable pulley, and the movable pulley slides along the front and back direction. The assembly and disassembly difficulty of the gear box with the shaft is reduced, the damage to the axle is avoided, and the detection efficiency is improved; the running-in test device can adapt to running-in tests of various gear boxes with shafts of different specifications and different transmission ratios, and the application range is expanded; the running-in test platform has stable and reliable operation, small vibration amplitude and high precision; the crane loading and unloading operation can be completed by only one person, and the operation is convenient, quick and labor-saving; the service life is long.

Description

Running-in test device for rail train belt shaft gear box

Technical Field

The utility model belongs to the technical field of the rail transit, concretely relates to running-in testing arrangement of rail train tape spool gear box.

Background

With the development of society, rail trains are gradually popularized in life of people, rail lines are distributed in each area of a city, a shaft-bearing gear box is one of important components of the rail trains, and the quality of the shaft-bearing gear box directly influences the running safety of the rail trains, so that the testing of whether the assembly quality of the shaft-bearing gear box is qualified is the most important link in the production (maintenance) process of the shaft-bearing gear box, and the testing mainly detects whether the shaft-bearing gear box has the conditions of no noise, oil leakage and unreasonable temperature change at present. The industry adopts the running-in platform to detect universally, and the running-in platform on the market at present mainly divide into following several: the device at least needs three persons to operate, if the operation is improper, the shaft head can be damaged, and the device is limited by the fixing strength of the ejector pin, can only be suitable for running-in of a low-rotating-speed shaft and cannot meet the test requirement of running of a high-rotating-speed shaft; two, bearing formula running-in test platform, its adopt at the both ends fixed bearing of axle and fix the bearing and carry out the running-in test on the platform, this kind of running-in device is comparatively complicated and be difficult to the operation to the installation dismantlement process of bearing, still has the risk of damaging the gear box axletree at the in-process of dismouting bearing simultaneously, needs the simultaneous operation more than two people in addition just can accomplish the test task.

In the prior art, for example, a "gear box no-load running-in test bed" provided by chinese patent publication No. CN201935803U includes a left adjustable center device, a right adjustable center device, a bracket for suspending a gear box, and a lifting support for supporting a low-speed shaft of the gear box, where the left adjustable center device and the right adjustable center device respectively have centers that can be aligned with a center hole of a corresponding end portion of the low-speed shaft of the gear box. The structure is a typical thimble type running-in platform structure, and has the problems that the fixing operation is not easy, a spindle head is easy to crash and the structure cannot be suitable for a high-speed spindle test.

The driving device is connected and installed at the left end of the test bed base through bolts, the fixed end elastic clamping main shaft positioning and clamping device is installed on the left side of the test bed base, the moving end self-centering positioning and clamping device is installed at the right end of the test bed base, and the gear box input end pressing upright post device is installed on the test bed base through T-shaped bolts. The fixed end elastic clamping main shaft positioning and clamping device and the moving end self-centering positioning and clamping device are matched to center and fix the axle of the belt axle gear box, although compared with the traditional ejector pin type running-in platform and a bearing type running-in platform, the movable end self-centering positioning and clamping device has the advantages of being relatively convenient to install and free of damage to the axle of the belt axle gear box, the movable end self-centering positioning and clamping device is narrow in application range, only suitable for the belt axle gear box with specific specifications, the axle and the fixed end elastic clamping main shaft positioning and clamping device are required to be fixedly installed, and the dismounting operation is still very troublesome; in addition, as it is known that a rail train transmits power to a countershaft of a gear box with a shaft, and the countershaft drives the gear box to drive an axle to rotate, the invention applies power to the axle and drives the gear box and the countershaft to rotate in the test process, and the obtained test result is definitely different from the actual use condition.

In view of the above, there is a need for a running-in test device for a railway train axle gear box, which has a simple structure, can be quickly assembled and disassembled without damaging an axle, and has strong applicability to various specifications of axle gear boxes. The applicant has therefore made an advantageous design, in the context of which the solution to be described below is made.

Disclosure of Invention

The utility model aims to provide a running-in test device of a railway train belt shaft gear box, which is beneficial to improving a supporting structure to reduce the difficulty of assembling and disassembling the belt shaft gear box, and can avoid damaging an axle and improve the detection efficiency; the adjustment of the installation positions of the motor and the support seat is realized by being favorable for improving the installation structure of the motor and the support seat, and the running-in test of the belt shaft gear boxes with different specifications and different transmission ratios can be adapted.

The utility model discloses a task is accomplished like this, a running-in testing arrangement of rail train tape spool gear box, including a base, a pair of supporting seat, a motor and a gear box fixing device of setting on the base of installing in the base top and being bilateral symmetry setting, its characterized in that: the supporting seat slides along the left and right directions on the base, the motor is installed on a lifting device, the lifting device slides along the left and right directions and the front and back directions on the base respectively, the gear box fixing device slides along the left and right directions and the front and back directions respectively, a fixed pulley and a movable pulley are arranged on the supporting seat, and the movable pulley slides along the front and back directions.

In a specific embodiment of the present invention, the base is formed with a pair of supporting seat guide rails at the corresponding positions on the left and right sides, the supporting seat is slidably disposed on the pair of supporting seat guide rails on one side, and the supporting seat is provided with a supporting seat locking bolt at the joint with the supporting seat guide rails.

In another specific embodiment of the present invention, the base on the position of one side of the supporting seat is formed with a pair of motor transverse rails, the motor transverse rails are provided with a lifting device base on the left and right sliding manner, the lifting device base is fixed with the motor transverse rails through a pair of lifting device transverse locking bolts, the lifting device base on the front and back direction is formed with a motor longitudinal rail, the lifting device is arranged on the motor longitudinal rail in the front and back sliding manner and fixed with the motor longitudinal rail through a pair of lifting device longitudinal locking bolts.

In another specific embodiment of the present invention, the base is provided with a fixing device cross rail at a position on one side of the motor, the fixing device cross rail is provided with a fixing device base on the base in a sliding manner, the fixing device base is fixed to the fixing device cross rail through a pair of fixing device cross locking bolts, the fixing device base is provided with a fixing device longitudinal rail along the front-back direction, and the fixing device is slidably provided on the fixing device longitudinal rail in a sliding manner and fixed to the fixing device longitudinal rail through a pair of fixing device longitudinal locking bolts.

In another specific embodiment of the present invention, the fixed pulley is rotatably supported on a fixed pulley seat by taking the left and right directions as an axis, the fixed pulley seat is fixedly connected to the supporting seat by a screw, the movable pulley is rotatably supported on a movable pulley seat by taking the left and right directions as an axis, a long hole is formed in the movable pulley seat along the front and rear directions, a fixing bolt fixedly connected to the supporting seat below is disposed in the long hole, and the movable pulley seat slides along the extending direction of the long hole and is fixedly connected to the supporting seat by a locking fixing bolt.

The utility model discloses a still have a concrete embodiment, fixed pulley seat and movable pulley seat on seted up a front bezel groove and a back plate groove respectively, front bezel groove and back plate inslot interpolation be equipped with a guard plate, this guard plate is the circular arc type structure and both ends are inserted respectively and are established at adjacent front bezel groove and back plate inslot.

In still another specific embodiment of the present invention, the lifting device includes a lifting bottom plate, a lifting top plate, and a pair of first lifting plates and a pair of second lifting plates disposed between the lifting bottom plate and the lifting top plate in an intersecting manner, the lifting bottom plate is upwardly formed with a pair of lower hinged plates, a pair of lower hinged plates are respectively provided with a lower long hole at a position corresponding to each other at the left end, the lifting top plate is downwardly formed with a pair of upper hinged plates, a pair of upper hinged plates are respectively provided with an upper long hole at a position corresponding to each other at the left end, the middle portions of the first lifting plates and the corresponding second lifting plates are hinged to each other, a lifting seat fixed on the lifting bottom plate is disposed between the lower ends of the pair of first lifting plates, a lifting seat shaft fixedly connected to the lower hinged plates is respectively extended from the front end and the rear end of the lifting seat, and the lower ends of the pair of first lifting plates are respectively rotatably disposed on the corresponding lifting seat shafts and are positioned at the lower A first upper hinge shaft is formed between the upper ends of a pair of first lifting plates, both ends of the first upper hinge shaft extend towards both sides and are respectively penetrated in the corresponding upper long holes and can slide along the left and right directions, a second upper hinge shaft is formed between the upper ends of a pair of second lifting plates, both ends of the second upper hinge shaft extend towards both sides and are respectively hinged with the pair of upper hinge plates, a moving seat is arranged between the lower ends of the pair of second lifting plates, both front and rear ends of the moving seat respectively extend with a moving seat shaft, the moving seat shafts are respectively penetrated in the corresponding lower long holes and can slide along the left and right directions, the lower ends of the pair of second lifting plates are rotatably supported on the moving seat shaft and are positioned at the inner sides of a pair of lower hinge plates, the left ends of the lower hinge plates and the upper hinge plates are respectively provided with an adjusting screw, the adjusting screws are screwed on the lower hinge plates and the upper hinge plates and are respectively penetrated in the upper long holes and the lower long holes in a left and right adjusting mode, the lifting seat is connected with a screw rod in a threaded manner, the screw rod extends towards the left and right direction, and one end of the screw rod is rotationally fixed with the moving seat.

In a more specific embodiment of the present invention, the gear box fixing device comprises a fixing base slidably disposed on the fixing device longitudinal rail, a fixing rod rotatably disposed on the fixing base and rotating in a front-rear direction, and a fixing head disposed on an upper end portion of the fixing rod.

In yet another specific embodiment of the present invention, the base is further provided with at least one mounting rod, and the upper ends of the mounting rods are respectively provided with a mounting seat; a lifting ring is respectively fixed on the base and positioned at the four corners; the base is provided with a power interface at one side surface close to the mounting rod.

In a still more specific embodiment of the present invention, the fixed pulley and the movable pulley are nylon rollers.

The utility model adopts the above structure after, beneficial effect who has: firstly, the structure that the pair of pulleys are arranged on the supporting seat and the gear box fixing device is matched to fixedly install the gear box with the shaft is adopted, so that the assembly and disassembly difficulty of the gear box with the shaft is reduced, the damage to an axle caused by assembly and disassembly is effectively avoided, and the detection efficiency is improved; secondly, due to the adoption of the structure of the supporting seat which slides left and right, the gear box fixing device which slides front and back and left and right and the motor which can slide front and back and left and right and lift up and down, the positions of the supporting seat, the gear box fixing device and the motor can be adjusted, the running-in test of the gear boxes with shafts of different specifications and different transmission ratios can be adapted, and the application range is expanded; thirdly, the input shaft of the gear box and the output shaft of the motor can be ensured to be in a relatively parallel state, so that the running-in test platform can run stably and reliably, and has small vibration amplitude and high precision; fourthly, the crane loading and unloading operation can be completed by only one person through bolt adjustment, the operation is more convenient, quicker and labor-saving, and the labor cost is greatly reduced; fifthly, after the fixed pulleys and the movable pulleys adopt nylon rollers, the damage to the axle of the gear box with the axle is reduced, and the service life is long.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a schematic structural view of the fixing base of the present invention.

Fig. 3 is a schematic structural view of the lifting device of the present invention.

Fig. 4 is a schematic structural view of the gear box fixing device of the present invention.

Fig. 5 is a plan sectional view of the lifting device of the present invention.

In the figure: 1. the device comprises a base, 11 parts of a support seat guide rail, 12 parts of a motor transverse guide rail, 13 parts of a fixing device transverse guide rail, 14 parts of a lifting ring and 15 parts of a power interface; 2. the supporting seat comprises a supporting seat, 21 fixed pulleys, 211 fixed pulley seats, 2111 front plate grooves, 22 movable pulleys, 221 movable pulley seats, 2211 rear plate grooves, 222 long holes, 223 fixed bolts, 23 supporting seat locking bolts and 24 protective plates; 3. the lifting device comprises a motor, 31, a lifting device, 311, a lifting bottom plate, 3111, a lower long hole, 3112, a lower hinged plate, 312, a lifting top plate, 3121, an upper long hole, 3122, an upper hinged plate, 313, a first lifting plate, 3131, a first upper hinged shaft, 314, a lifting seat, 3141, a lifting seat shaft, 315, a screw rod, 316, a second lifting plate, 3161, a second upper hinged shaft, 317, a movable block, 3171, a movable seat shaft, 318, an adjusting screw, 32, a lifting device base, 321, a lifting device transverse locking bolt, 322, a motor longitudinal guide rail, 323, a lifting device longitudinal locking bolt, 33, a coupler, 34 and a motor mounting seat; 4. the gear box fixing device comprises a gear box fixing device 41, a fixing device base 411, a fixing device transverse locking bolt 412, a fixing device longitudinal guide rail 413, a fixing device longitudinal locking bolt 42, a fixing seat 43, a fixing rod 44 and a fixing head; 5. mounting rod 51, mounting seat; 6. belt shaft gear box, 61 axle, 62 gear box, 63 input shaft.

Detailed Description

The following is a detailed description by way of example, but the description of the example is not intended to limit the scope of the present invention, and any equivalent changes made according to the present invention, which are merely formal and insubstantial, should be considered as technical solutions of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and back are given with respect to the position state of fig. 1, and thus should not be interpreted as limiting the technical solution provided by the present invention.

Referring to fig. 1 in combination with fig. 2, fig. 3, fig. 4 and fig. 5, the present invention relates to a running-in test device for a railway train axle gear box, which comprises a base 1, a pair of supporting seats 2 installed above the base 1 and arranged in bilateral symmetry, a motor 3 arranged on the base 1, and a gear box fixing device 4 arranged on the base 1, and is characterized in that: the supporting seat 2 slides along the left-right direction on the base 1, the motor 3 is installed on a lifting device 31, the lifting device 31 slides along the left-right direction and the front-back direction on the base 1 respectively, the gear box fixing device 4 slides along the left-right direction and the front-back direction respectively, wherein a fixed pulley 21 and a movable pulley 22 are arranged on the supporting seat 2, and the movable pulley 22 slides along the front-back direction. In this embodiment, the motor 3 is a 22KW inverter motor, and has a maximum rotation speed of 4500 and a maximum load of 1.5T on the test platform.

Furthermore, the base 1 is respectively provided with a pair of support seat guide rails 11 at the corresponding positions at the left and right sides, the support seats 2 are respectively slidably arranged on the pair of support seat guide rails 11 at one side, and a support seat locking bolt 23 is arranged at the joint of the support seat 2 and the support seat guide rails 11.

Furthermore, a pair of motor transverse guide rails 12 are formed on the base 1 at one side of the support base 2, wherein a motor transverse guide rail 12 at the rear end and a support base guide rail 11 at the front end are positioned on the same straight line, and the two are communicated with each other to form an integral long rail, and the length of each of the two is approximately half of the length of the long rail. A lifting device base 32 is arranged on the pair of motor transverse guide rails 12 in a left-right sliding manner, the lifting device base 32 is matched and fixed with the motor transverse guide rails 12 through a pair of lifting device transverse locking bolts 321, a motor longitudinal guide rail 322 is formed on the lifting device base 32 along the front-back direction, and the lifting device 31 is arranged on the motor longitudinal guide rail 322 in a front-back sliding manner and is matched and fixed with the motor longitudinal guide rail 322 through a pair of lifting device longitudinal locking bolts 323.

Further, a fixing device transverse guide rail 13 is formed at a position on one side of the motor 3 on the base 1, a fixing device base 41 is arranged on the fixing device transverse guide rail 13 in a left-right sliding manner, the fixing device base 41 is matched and fixed with the fixing device transverse guide rail 13 through a pair of fixing device transverse locking bolts 411, a fixing device longitudinal guide rail 412 is formed on the fixing device base 41 along the front-back direction, and the fixing device 4 is arranged on the fixing device longitudinal guide rail 412 in a front-back sliding manner and is matched and fixed with the fixing device longitudinal guide rail 412 through a pair of fixing device longitudinal locking bolts 413.

Further, the fixed pulley 21 is rotatably supported on a fixed pulley seat 211 with the left-right direction as an axis, the fixed pulley seat 211 is fixedly connected with the supporting seat 2 through a screw, the movable pulley 22 is rotatably supported on a movable pulley seat 221 with the left-right direction as an axis, a long hole 222 is formed in the movable pulley seat 221 along the front-back direction, a fixing bolt 223 fixedly connected with the lower supporting seat 2 is arranged in the long hole 222, and the movable pulley seat 221 slides along the extending direction of the long hole and is fixedly connected with the supporting seat 2 through a locking fixing bolt 223.

Further, the fixed pulley seat 211 and the movable pulley seat 221 are respectively provided with a front plate slot 2111 and a rear plate slot 2211, a protection plate 24 is inserted into the front plate slot 2111 and the rear plate slot 2211, the protection plate 24 is of an arc structure, and two ends of the protection plate are respectively inserted into the adjacent front plate slot 2111 and the adjacent rear plate slot 2211.

Further, the lifting device 31 includes a lifting bottom plate 311 and a lifting top plate 312, and a pair of first lifting plates 313 and a pair of second lifting plates 316 disposed between the lifting bottom plate 311 and the lifting top plate 312 in a mutually crossing manner, a motor mounting seat 34 is formed at the bottom of the motor 3, and the motor 3 is bolted to the lifting top plate 312 through the motor mounting seat 34. The lifting bottom plate 311 is upwardly formed with a pair of lower hinge plates 3112, the pair of lower hinge plates 3112 are respectively provided with a lower long hole 3111 at the position where the left ends thereof correspond to each other, the lifting top plate 312 is downwardly formed with a pair of upper hinge plates 3122, the pair of upper hinge plates 3122 are respectively provided with an upper long hole 3121 at the position where the left ends thereof correspond to each other, the first lifting plate 313 and the corresponding second lifting plate 316 are hinged to each other at the middle portions thereof, a lifting base 314 fixed to the lifting bottom plate 311 is provided between the lower ends of the pair of first lifting plates 313, a lifting base shaft 3141 fixedly connected to the lower hinge plates 3112 extends from the front and rear ends of the lifting base 314, the lower ends of the pair of first lifting plates 313 are respectively rotatably provided on the corresponding lifting base shafts 3141 and are positioned inside the pair of lower hinge plates 2, a first upper hinge shaft 3131 is formed between the upper ends of the pair of first lifting plates 313, the first upper hinge shaft 3131 having both ends extended to both sides and inserted into the corresponding upper elongated holes 3121 respectively and slidably in the left and right directions, a second upper hinge shaft 3161 formed between the upper ends of the pair of second lift plates 316, the second upper hinge shaft 3161 having both ends extended to both sides and hinge-jointed with the pair of upper hinge plates 3122 respectively, a moving seat 317 provided between the lower ends of the pair of second lift plates 316, a moving seat shaft 3171 extended from both front and rear ends of the moving seat 317 respectively, the moving seat shafts 3171 inserted into the corresponding lower elongated holes 3111 respectively and slidably in the left and right directions, a pair of second lift plates 316 having lower ends rotatably supported on the moving seat shafts 3171 and positioned inside the pair of lower hinge plates 3112, the lower hinge plates 3112 and the upper hinge plates 3122 having left ends provided with an adjustment screw 318 respectively, which is screw-coupled to the lower and upper elongated holes 3112 and inserted into the upper and lower elongated holes 3121 and 3111 respectively in a left and right adjustment manner, the lifting base 314 is screwed with a screw 315, and the screw 315 extends in the left-right direction and has one end rotatably fixed with the movable base 317.

Further, the gear box fixing device 4 includes a fixing base 42 slidably disposed on the fixing device longitudinal rail 412, a fixing rod 43 rotatably disposed on the fixing base 42 and rotated in a front-rear direction, and a fixing head 44 disposed at an upper end portion of the fixing rod 43.

Further, the base 1 is further provided with at least one mounting rod 5, only one mounting rod 5 is illustrated in this embodiment, and the upper end portions of the mounting rods 5 are respectively provided with a mounting seat 51; a hanging ring 14 is respectively fixed on the base 1 and positioned at the four corners; the base 1 is also provided with a power interface 15 at a side surface close to the mounting rod 5.

Referring to fig. 1 to 5, when the running-in test of the belt-shaft gearbox 6 is required, the positions of the support base 2, the motor 3 and the gearbox fixing device 4 are adjusted by corresponding tracks according to the specification of the belt-shaft gearbox 6, and the distance between the movable pulley 22 and the fixed pulley 21 is adjusted according to the diameter of the axle 61, so that the axle 61 can be stably supported between the movable pulley 22 and the fixed pulley 21. The method specifically comprises the following steps: loosening the support seat locking bolt 23 to enable the support seat 2 to slide on the support seat guide rail 11, and tightening the support seat locking bolt 23 to enable the support seat 2 to be fixed when the support seat 2 moves to a proper position; loosening the lifting device transverse locking bolt 321 and the lifting device longitudinal locking bolt 323 to enable the motor 3 and the lifting device 31 to slide on the lifting device transverse rail 12 and the lifting device longitudinal rail 322, rotating the screw 315 to enable the first lifting plate 313 and the second lifting plate 316 to lift the motor 3 upwards through shearing force, and simultaneously enabling the first upper hinge shaft 3131 and the moving seat shaft 3171 to be subjected to fine adjustment through rotating the adjusting screw 318 until the lifting device transverse locking bolt 321 and the lifting device longitudinal locking bolt 323 are screwed down and the screw 315 and the adjusting screw 318 are stopped rotating when the output shaft of the motor 3 is in a corresponding parallel state with the input shaft 63; loosening the fixing device transverse locking bolt 411 and the fixing device longitudinal locking bolt 413 to enable the gear box fixing device 4 to slide on the fixing device transverse guide rail 13 and the fixing device longitudinal guide rail 412 until the fixing position of the gear box fixing device 4 is opposite to that of the gear box 62, tightening the fixing device transverse locking bolt 411 and the fixing device longitudinal locking bolt 413 to enable the gear box fixing device 4 to be fixed, at the moment, the output shaft of the motor 3 is in a position corresponding to the input shaft 63 of the shaft-bearing gear box 6 and is in transmission connection with the input shaft 63 through a coupler 33, the gear box fixing device 4 is in a position corresponding to one side of the gear box 62, the gear box fixing device 4 enables the fixing head 44 to abut against one side face of the gear box 62 through rotating the fixing rod 43 and is fixed with the gear box 62 through the bolts, and the motor 3 and a required sensor such as a temperature detecting head are arranged in the testing process, The wires of the vibration detection head and the like are respectively connected with an external power supply, a computer and a printer through a power interface 15, wherein the sensor is arranged on the mounting seat 51, thereby completing the whole mounting process of the gear box 6 with the shaft.

Claims (10)

1. The utility model provides a running-in test device of rail train belted axle gear box, includes a base (1), a pair of supporting seat (2) of installing in base (1) top and being bilateral symmetry setting, a motor (3) of setting on base (1) and a gear box fixing device (4) of setting on base (1), its characterized in that: the supporting seat (2) slides along the left and right directions on the base (1), the motor (3) is installed on a lifting device (31), the lifting device (31) slides along the left and right directions and the front and back directions on the base (1) respectively, the gear box fixing device (4) slides along the left and right directions and the front and back directions respectively, wherein a fixed pulley (21) and a movable pulley (22) are arranged on the supporting seat (2), and the movable pulley (22) slides along the front and back directions.

2. The running-in test device of the axle gear box of the rail train as claimed in claim 1, wherein the base (1) is respectively provided with a pair of supporting seat guide rails (11) at the corresponding positions at the left and right sides, the supporting seats (2) are respectively slidably arranged on the pair of supporting seat guide rails (11) at one side, and a supporting seat locking bolt (23) is arranged at the joint of the supporting seat (2) and the supporting seat guide rails (11).

3. The running-in test device of the axle gear box of the rail train as claimed in claim 1, characterized in that a pair of motor transverse guide rails (12) are formed on the base (1) at one side of the supporting seat (2), a lifting device base (32) is slidably arranged on the motor transverse guide rails (12) from left to right, the lifting device base (32) is fixed with the motor transverse guide rails (12) through a pair of lifting device transverse locking bolts (321), a motor longitudinal guide rail (322) is formed on the lifting device base (32) along the front-back direction, and the lifting device (31) is slidably arranged on the motor longitudinal guide rail (322) from front to back and is fixed with the motor longitudinal guide rail (322) through a pair of lifting device longitudinal locking bolts (323).

4. A running-in test device for a shaft-mounted gearbox of a railway train as claimed in claim 1, wherein a fixing device transverse guide rail (13) is formed on the base (1) at a position on one side of the motor (3), a fixing device base (41) is slidably provided on the fixing device transverse guide rail (13) from left to right, the fixing device base (41) is fixed to the fixing device transverse guide rail (13) by a pair of fixing device transverse locking bolts (411) in a matching manner, a fixing device longitudinal guide rail (412) is formed on the fixing device base (41) in the front-back direction, and the fixing device (4) is slidably provided on the fixing device longitudinal guide rail (412) from front to back and is fixed to the fixing device longitudinal guide rail (412) by a pair of fixing device longitudinal locking bolts (413).

5. The running-in test device of the axle-mounted gearbox of the rail train as claimed in claim 1, wherein the fixed pulley (21) is rotatably supported on a fixed pulley seat (211) by taking the left-right direction as an axis, the fixed pulley seat (211) is fixedly connected with the supporting seat (2) through a screw, the movable pulley (22) is rotatably supported on a movable pulley seat (221) by taking the left-right direction as an axis, the movable pulley seat (221) is provided with a long hole (222) along the front-back direction, a fixing bolt (223) fixedly connected with the lower supporting seat (2) is arranged in the long hole (222), and the movable pulley seat (221) slides along the extending direction of the long hole and is fixedly connected with the supporting seat (2) through the locking fixing bolt (223).

6. The running-in test device of the axle-mounted gearbox of the railway train as claimed in claim 5, wherein the fixed pulley seat (211) and the movable pulley seat (221) are respectively provided with a front plate groove (2111) and a rear plate groove (2211), a protection plate (24) is inserted into the front plate groove (2111) and the rear plate groove (2211), the protection plate (24) is of an arc structure, and two ends of the protection plate are respectively inserted into the adjacent front plate groove (2111) and the adjacent rear plate groove (2211).

7. The running-in test device of the shaft-carrying gearbox of the rail train as claimed in claim 1, wherein the lifting device (31) comprises a lifting bottom plate (311) and a lifting top plate (312), and a pair of first lifting plate (313) and a pair of second lifting plate (316) which are crosswise arranged between the lifting bottom plate (311) and the lifting top plate (312), the lifting bottom plate (311) is upwardly formed with a pair of lower hinge plates (3112), the pair of lower hinge plates (3112) are respectively provided with a lower long hole (3111) at positions corresponding to each other at left ends, the lifting top plate (312) is downwardly formed with a pair of upper hinge plates (3122), the pair of upper hinge plates (3122) are respectively provided with an upper long hole (3121) at positions corresponding to each other at left ends, and the middle parts of the first lifting plate (313) and the corresponding second lifting plate (316) are hinged to each other, a lifting seat (314) fixed on the lifting bottom plate (311) is arranged between the lower ends of a pair of first lifting plates (313), a lifting seat shaft (3141) fixedly connected with the lower hinge plate (3112) respectively extends from the front end and the rear end of the lifting seat (314), the lower ends of the pair of first lifting plates (313) are respectively and rotatably arranged on the corresponding lifting seat shaft (3141) and are positioned at the inner sides of the pair of lower hinge plates (3112), a first upper hinge shaft (3131) is formed between the upper ends of the pair of first lifting plates (313), the two ends of the first upper hinge shaft (3131) extend towards two sides and are respectively penetrated in the corresponding upper long holes (3121) and can slide along the left-right direction, a second upper hinge shaft (3161) is formed between the upper ends of the pair of second lifting plates (316), the two ends of the second upper hinge shaft (3161) extend towards two sides and are respectively hinged with the pair of upper hinge shafts (3122), a moving seat (317) is arranged between the lower ends of the pair of second lifting plates (316), a moving seat shaft (3171) extends from the front end and the rear end of the moving seat (317) respectively, the moving seat shafts (3171) are respectively arranged in the corresponding lower long holes (3111) in a penetrating way and can slide along the left-right direction, the lower ends of the pair of second lifting plates (316) are rotatably supported on the moving seat shafts (3171) and are positioned at the inner sides of the pair of lower hinge plates (3112), the left ends of the lower hinged plate (3112) and the upper hinged plate (3122) are respectively provided with an adjusting screw (318), the adjusting screw (318) is screwed on the lower hinge plate (3112) and the upper hinge plate (3122) and respectively penetrates through the upper long hole (3121) and the lower long hole (3111) in a left-right adjusting way, the lifting seat (314) is screwed with a screw rod (315), the screw (315) extends in the left-right direction and has one end rotatably fixed to the movable base (317).

8. A running-in test device for a shaft gearbox of a railway train as claimed in claim 1, characterized in that the gearbox fixing device (4) comprises a fixing base (42) slidably arranged on the longitudinal guide rail (412) of the fixing device, a fixing rod (43) rotatably arranged on the fixing base (42) and rotating in the fore-and-aft direction, and a fixing head (44) arranged at the upper end of the fixing rod (43).

9. A running-in test device for a shaft-mounted gearbox of a rail train according to claim 1, characterized in that at least one mounting rod (5) is further arranged on the base (1), and the upper end portions of the mounting rods (5) are respectively provided with a mounting seat (51); a hanging ring (14) is respectively fixed on the base (1) and positioned at the four corners; the base (1) is also provided with a power interface (15) at one side surface close to the mounting rod (5).

10. A running-in test device for a shaft gear box of a railway train as claimed in claim 1, characterized in that the fixed pulley (21) and the movable pulley (22) are nylon rollers respectively.

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