Simulation loading test device for main bearing of heading machine

Abstract

The utility model provides a simulated loading test device for a main bearing of a heading machine, and relates to the technical field of heading machine detection equipment. The tunnel boring machine main bearing simulation loading test device comprises a frame body and a connecting flange located in the frame body, the connecting flange is used for installing a main bearing of a tunnel boring machine, the tunnel boring machine main bearing simulation loading test device further comprises a driving device, a radial loading device, an axial loading device and an impact loading device, and the driving device is used for driving the main bearing to rotate relative to the connecting flange; the radial loading device is used for acting on the connecting flange in the radial direction so as to provide radial loading for the main bearing, the axial loading device is used for acting on the connecting flange in the axial direction so as to provide axial loading for the main bearing, and the impact loading device is used for impacting an inner ring of the connecting flange so as to apply impact load to the main bearing. According to the simulated loading test device for the main bearing of the heading machine, the diversity of simulated loading tests of the main bearing of the heading machine is improved.

Description

Technical Field

[0001] The present application relates to the technical field of roadheader detection equipment, and in particular to a roadheader main bearing simulation loading test device. Background Art

[0002] A tunnel boring machine is a tunnel construction machine that uses a rotating cutter to dig, break the surrounding rock in the tunnel, and excavate to form the entire tunnel section. When the tunnel boring machine is working, the huge external load is transmitted to the inner gear ring of the main bearing through the cutter head and adapter flange and other components. Multiple motors drive the inner gear ring through gears to drive the cutter head to rotate, so that the cutter head overcomes the operating torque to cut. In order to observe the condition of the main bearing when it is subjected to external force, it is necessary to use a main bearing simulation loading test device to test the main bearing.

[0003] The tunnel boring machine main bearing simulation loading test device of the related technology includes a frame, a main bearing, a driving device, a radial loading device and an axial loading device. The main bearing is rotatably arranged on the frame, the driving device is used to drive the main bearing to rotate, the radial loading device is used to act radially on the main bearing to provide radial loading to the main shaft, and the axial loading device is used to act axially on the main bearing to provide axial loading to the main bearing; the tunnel boring machine main bearing simulation loading test device of the related technology can only perform radial and axial loading tests on the main bearing, which reduces the diversity of the main bearing simulation loading test. Utility Model Content

[0004] The present application provides a simulated loading test device for a main bearing of a tunnel boring machine, which is used to solve the technical problem that the related art can only perform radial and axial loading tests on the main bearing, thereby reducing the diversity of simulated loading tests.

[0005] The present application provides a simulated loading test device for a main bearing of a tunnel boring machine, comprising a frame and a connecting flange located in the frame, wherein the connecting flange is used to install a main bearing of the tunnel boring machine, and further comprising a driving device, a radial loading device, an axial loading device and an impact loading device, wherein the driving device is used to drive the main bearing to rotate relative to the connecting flange, the radial loading device is used to act radially on the connecting flange to provide a radial load to the main bearing, the axial loading device is used to act axially on the connecting flange to provide an axial load to the main bearing, and the impact loading device is used to impact an inner ring of the connecting flange to apply an impact load to the main bearing.

[0006] In some embodiments, the radial loading device includes an adjusting bolt, which is passed through and threadedly connected to the frame, the tightening direction of the adjusting bolt is arranged radially along the connecting flange, and the rod of the adjusting bolt is used to abut against the connecting flange.

[0007] In some embodiments, the axial loading device includes a loading disc and at least one loading rod, wherein the loading disc is coaxially arranged with the connecting flange, the loading rod is arranged between the loading disc and the connecting flange, and the loading rod is provided with a loading member for applying tension to the connecting flange along the length direction of the loading rod.

[0008] In some embodiments, the loading rod is configured as a double-ended stud, and the two ends of the double-ended stud are respectively passed through the connecting flange and the loading disc, and the loading member includes a tightening nut that is sleeved and threadedly connected to the two ends of the double-ended stud, and the tightening nuts on both sides are respectively used to abut against two surfaces opposite to each other of the loading disc and the connecting flange.

[0009] In some embodiments, the impact loading device includes a fixed bracket, at least one connecting rod and at least one hammer. The fixed bracket is connected to the inner ring of the connecting flange. The fixed bracket is provided with at least one through hole. The through hole corresponds one-to-one to the connecting rod. The through hole is used for allowing the connecting rod to pass through. The connecting rod corresponds one-to-one to the hammer. The hammer is connected to the end of the connecting rod close to the connecting flange. A driving member is provided in the fixed bracket for driving the multiple connecting rods to move in the through hole to drive the hammer to impact the inner ring of the connecting flange.

[0010] In some embodiments, the driving member includes a connecting plate and an impact loading motor, the connecting plate is located in the fixed bracket, one end of the connecting rod is hingedly disposed on the connecting plate, and the impact loading motor is used to drive the connecting plate to reciprocate in the fixed bracket.

[0011] In some embodiments, the frame includes a platform and a gantry arranged on the platform, an oil tank is arranged in the gantry, the connecting flange is located in the gantry, and the connecting flange and the main bearing are partially located in the oil tank, an opening is opened on the oil tank, an abutting stud for abutting against the connecting flange is passed through and threadedly connected in the opening, and a sealing member is provided in the opening for sealing the opening when the opening is not needed.

[0012] In some embodiments, a support platform is detachably connected to the platform, a first bearing is detachably connected to the support platform, the loading disc is sleeved on the outer ring of the first bearing, and the driving end of the impact loading motor is passed through and fixedly connected to the inner ring of the first bearing.

[0013] In some embodiments, the driving device includes at least one driving motor and at least one driving gear, the driving motor and the driving gear are arranged in a one-to-one correspondence, the driving gear is connected to the driving end of the driving motor, and the driving gear is used to engage with the inner gear ring of the main bearing.

[0014] In some embodiments, a support body is detachably connected to the platform, and at least one second bearing is provided on the support body. The second bearing corresponds one-to-one with the drive motor, and the driving end of the drive motor is connected to the inner ring of the second bearing. The support body is provided with an adjustment member for adjusting the position of the second bearing along the radial direction of the connecting flange.

[0015] The present application provides a simulated loading test device for the main bearing of a tunnel boring machine. By rotatably connecting the main bearing of the tunnel boring machine to a connecting flange, a driving device can drive the main bearing to rotate. At this time, a radial loading device can act radially on the connecting flange, so that the radial loading device acts radially on the main bearing in a rotating state through the connecting flange, thereby facilitating observation of the operating condition of the main bearing when the main bearing is subjected to radial force; and an axial loading device can act axially on the connecting flange, so that the axial loading device acts axially on the main bearing in a rotating state through the connecting flange, thereby facilitating observation of the operating condition of the main bearing when the main bearing is subjected to axial force; and an impact loading device can continuously impact the inner ring of the connecting flange, so that the impact loading device continuously applies impact force to the main bearing through the connecting flange, thereby facilitating observation of the operating condition of the main bearing when the main bearing is subjected to continuous impact. The use of the radial loading device, the axial loading device and the impact loading device improves the diversity of the simulated loading test of the main bearing, thereby improving the test effect of the simulated loading test of the main bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] Figure 1 A schematic diagram of the structure of a simulated loading test device for a main bearing of a tunnel boring machine provided in an embodiment of the present application;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0019] Figure 3 A schematic structural diagram of a main bearing simulation loading test device for a tunnel boring machine provided in an embodiment of the present application, used to demonstrate an impact loading device;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the drive device.

[0021] Description of reference numerals:

[0022] 100, frame; 110, connecting flange; 111, mounting hole; 112, observation port;

[0023] 120, platform; 121, support platform; 122, first bearing; 123, slideway; 124, first connecting block; 125, first connecting bolt; 126, second connecting block; 127, second connecting bolt;

[0024] 130, gantry; 140, fuel tank; 141, opening; 142, abutment stud;

[0025] 150, support body; 151, second bearing; 152, third connecting block; 153, third connecting bolt; 154, adjustment hole; 155, fourth connecting block; 156, fourth connecting bolt;

[0026] 160, pad;

[0027] 200, driving device; 210, driving motor; 220, driving gear;

[0028] 300, radial loading device; 310, adjusting bolt;

[0029] 400, axial loading device; 410, loading disc; 420, loading rod; 430, loading member; 440, bolt hole;

[0030] 500, impact loading device; 510, fixed bracket; 511, through hole; 512, connecting ring; 513, protrusion; 520, connecting rod; 530, hammer; 540, driving member; 541, connecting plate; 542, impact loading motor; 543, hinge groove; 544, rotating shaft;

[0031] 600, reducer;

[0032] 700, main bearing; 710, inner ring gear.

[0033] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0034] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0035] As described in the background technology, the tunnel boring machine main bearing simulation loading test device of the related technology includes a frame, a main bearing, a driving device, a radial loading device and an axial loading device. The main bearing is rotatably arranged on the frame, the driving device is used to drive the main bearing to rotate, the radial loading device is used to act radially on the main bearing to provide radial loading to the main shaft, and the axial loading device is used to act axially on the main bearing to provide axial loading to the main bearing; the tunnel boring machine main bearing simulation loading test device of the related technology can only perform radial and axial loading tests on the main bearing, which reduces the diversity of the main bearing simulation loading test.

[0036] In view of the above technical problems, an embodiment of the present application provides a simulated loading test device for the main bearing of a tunnel boring machine, which drives the driving gear to rotate by driving a motor, so that the driving gear drives the inner gear ring to rotate, thereby causing the inner gear ring to drive the main bearing to rotate. At this time, the adjusting bolt is screwed on the frame body, so that the rod of the adjusting bolt acts on the connecting flange along the radial direction of the connecting flange, and the connecting flange can act on the main bearing along the radial direction of the main bearing, which is convenient for observing the rotation of the main bearing when the main bearing is subjected to radial loading force; by screwing the tightening nut on the stud, so that the tightening nut abuts against the surfaces of the connecting flange and the loading disk that are opposite to each other, so that the stud acts on the connecting flange along the axial direction of the connecting flange, and the connecting flange can It acts on the main bearing axially, which is convenient for observing the rotation of the main bearing when the main bearing is subjected to axial loading force; the impact loading motor can drive the connecting plate to rotate, so that the connecting rod rotates at the hinge on the connecting plate, and the connecting rod can drive the hammer to continuously impact the inner ring of the connecting flange, so that the connecting flange continuously impacts the main bearing, which is convenient for observing the rotation of the main bearing when the main bearing is subjected to continuous impact; the lubricating oil can lubricate the main bearing when the main bearing rotates in the oil tank, which is convenient for observing the lubrication condition of the main bearing when the main bearing is subjected to simulated loading, thereby improving the diversity of the main bearing simulated loading test, thereby improving the test effect of the main bearing simulated loading test.

[0037] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0038] Combination Figures 1 to 4A tunnel boring machine main bearing simulation loading test device includes a frame 100 and a connecting flange 110 located in the frame 100, the connecting flange 110 is used to install the main bearing 700 of the tunnel boring machine, and also includes a driving device 200, a radial loading device 300, an axial loading device 400 and an impact loading device 500, the driving device 200 is used to drive the main bearing 700 to rotate relative to the connecting flange 110, the radial loading device 300 is used to radially act on the connecting flange 110 to provide radial loading to the main bearing 700, the axial loading device 400 is used to axially act on the connecting flange 110 to provide axial loading to the main bearing 700, and the impact loading device 500 is used to impact the inner ring of the connecting flange 110 to apply an impact load to the main bearing 700.

[0039] In this embodiment, a mounting hole 111 is provided on the connecting flange 110, and the main bearing 700 is embedded and rotatably connected in the mounting hole 111 along the axial half of the main bearing 700. The mounting hole 111 passes through the connecting flange 110 on one side along the axial direction of the main bearing 700, and is closed on the other side. The main bearing 700 abuts against the closed side of the mounting hole 111, and the diameter of the inner ring of the connecting flange 110 is smaller than the diameter of the mounting hole 111. When it is necessary to simulate loading tests on main bearings 700 of different specifications, by replacing the connecting flanges 110 with mounting holes 111 of different diameters, the connecting flange 110 is suitable for main bearings 700 of different specifications, thereby realizing simulated loading tests on main bearings 700 of different specifications.

[0040] By adopting the above technical solution, the main bearing 700 of the tunnel boring machine is rotatably connected to the connecting flange 110, and the driving device 200 can drive the main bearing 700 to rotate. At this time, the radial loading device 300 can act radially on the connecting flange 110, so that the radial loading device 300 acts radially on the main bearing 700 in a rotating state through the connecting flange 110, thereby facilitating the observation of the operating condition of the main bearing 700 when the main bearing 700 is subjected to radial force; and the axial loading device 400 can act axially on the connecting flange 110, so that the axial loading device 400 acts axially on the rotating state through the connecting flange 110. on the main bearing 700, thereby facilitating observation of the operating condition of the main bearing 700 when the main bearing 700 is subjected to axial force; and the impact loading device 500 can continuously impact the inner ring of the connecting flange 110, so that the impact loading device 500 continuously applies impact force to the main bearing 700 through the connecting flange 110, thereby facilitating observation of the operating condition of the main bearing 700 when the main bearing 700 is subjected to continuous impacts. The use of the radial loading device 300, the axial loading device 400 and the impact loading device 500 improves the diversity of the simulated loading test of the main bearing 700, thereby improving the test effect of the main bearing 700.

[0041] Combination Figures 1 to 4 The radial loading device 300 includes an adjusting bolt 310 , which is passed through and threadedly connected to the frame 100 . The tightening direction of the adjusting bolt 310 is arranged along the radial direction of the connecting flange 110 , and the rod of the adjusting bolt 310 is used to abut against the connecting flange 110 .

[0042] In this embodiment, the adjusting bolt 310 is arranged at the top of the frame 100, and the adjusting bolt 310 is arranged in the vertical direction. An observation port 112 is opened on the side wall of the connecting flange 110 and at the position where the rod of the adjusting bolt 310 is located. The rod of the adjusting bolt 310 is inserted and rotatably connected to the connecting flange 110; the abutment condition of the rod of the adjusting bolt 310 can be observed through the observation port 112.

[0043] By adopting the above technical scheme, the adjusting bolt 310 is screwed on the frame 100, so that the adjusting bolt 310 acts on the connecting flange 110 along the radial direction of the connecting flange 110, so that the connecting flange 110 acts on the main bearing 700 along the radial direction of the main bearing 700, thereby realizing radial loading of the main bearing 700; by adopting the setting of the adjusting bolt 310, by adjusting the screwing degree of the adjusting bolt 310, different loading forces are applied to the main bearing 700 in the radial direction, thereby improving the detection range of the radial loading of the main bearing 700 and improving the test effect of the radial loading of the main bearing 700; and the setting of the adjusting bolt 310 has a simple structure and is easy to operate.

[0044] Combination Figures 1 to 4 The axial loading device 400 includes a loading disc 410 and at least one loading rod 420. The loading disc 410 is coaxially arranged with the connecting flange 110. The loading rod 420 is arranged between the loading disc 410 and the connecting flange 110. The loading rod 420 is provided with a loading member 430 for applying tension to the connecting flange 110 along the length direction of the loading rod 420.

[0045] In this embodiment, two loading rods 420 are provided, and the two loading rods 420 are located on the upper part of the loading disc 410 and are respectively located on both sides of the loading disc 410; in other embodiments, the number of loading rods 420 can be adaptively adjusted as needed, for example, the number of loading rods 420 is set to four, and the four loading rods 420 are evenly arranged along the circumference of the loading disc 410.

[0046] By adopting the above-mentioned technical scheme, the loading member 430 can apply tension to the connecting flange 110 along the length direction of the loading rod 420, so that the connecting flange 110 applies tension to the main bearing 700, so that the main bearing 700 is subjected to tension at different positions of the loading rods 420. The setting of multiple loading rods 420 can apply tension to different positions of the main bearing 700, thereby improving the detection effect of the main bearing 700 under axial loading; the setting of the loading disc 410 and the loading rod 420 has a simple structure, is easy to operate, and does not affect the use of the radial loading device 300.

[0047] Combination Figures 1 to 4 The loading rod 420 is configured as a stud, and the two ends of the stud are respectively passed through the connecting flange 110 and the loading disc 410. The loading member 430 includes tightening nuts that are sleeved and threadedly connected to the two ends of the stud, and the tightening nuts on both sides are respectively used to abut against the two surfaces opposite to each other of the loading disc 410 and the connecting flange 110.

[0048] In this embodiment, a plurality of bolt holes 440 are evenly and spaced apart on the loading disc 410 along the circumference of the loading disc 410. A plurality of groups of bolt holes 440 are arranged along the radial direction of the loading disc 410. The diameters of the plurality of groups of bolt holes 440 gradually decrease toward the direction approaching the center of the loading disc 410. Studs are passed through and slidably connected in the bolt holes 440. When the connecting flanges 110 and the main bearing 700 of different diameters are replaced, by selecting bolt holes 440 of different diameters, the loading disc 410 is suitable for the main bearings 700 and the connecting flanges 110 of different diameters, thereby improving the applicability of the loading disc 410.

[0049] By adopting the above technical solution, when it is necessary to provide axial loading to the main bearing 700, the two tightening nuts are screwed at the two ends of the studs in directions approaching each other, so that the nuts drive the connecting flange 110 to move in the direction of the loading disc 410, thereby applying a loading force in the direction of the loading disc 410 to the connecting flange 110, so that the connecting flange 110 applies a loading force in the direction of the loading disc 410 to the main bearing 700, and by adjusting the tightening force of the tightening nuts, the connecting flange 110 applies different loading forces to the main bearing 700, thereby improving the test effect of the axial loading simulation test of the main bearing 700.

[0050] Combination Figures 1 to 4The impact loading device 500 includes a fixed bracket 510, at least one connecting rod 520 and at least one hammer 530. The fixed bracket 510 is connected to the inner ring of the connecting flange 110. At least one through hole 511 is opened on the fixed bracket 510. The through hole 511 corresponds to the connecting rod 520 one by one. The through hole 511 is used for allowing the connecting rod 520 to pass through. The connecting rod 520 corresponds to the hammer 530 one by one. The hammer 530 is connected to the end of the connecting rod 520 close to the connecting flange 110. A driving member 540 is provided in the fixed bracket 510 for driving multiple connecting rods 520 to move in the through hole 511 to drive the hammer 530 to impact the inner ring of the connecting flange 110.

[0051] In this embodiment, the fixing bracket 510 includes a connecting ring 512 and a plurality of protrusions 513. The plurality of protrusions 513 are arranged on the outer wall of the connecting ring 512 along the circumference of the connecting ring 512. The connecting ring 512 is located in the inner ring of the connecting flange 110. The protrusions 513 are integrally arranged on the connecting ring 512, and the protrusions 513 are fixedly connected to the inner wall of the inner ring of the connecting flange 110. The connecting ring 512 is fixedly connected to the inner ring of the connecting flange 110 through the protrusions 513. The through holes 511 are opened in the connecting ring 512. 2, five connecting rods 520 are provided, and five hammers 530 are provided; the diameter of the through hole 511 is larger than the width of the cross section of the connecting rod 520, and the purpose of such a setting is that the connecting rod 520 can swing in the through hole 511; the hammer 530 is arranged in a circular shape; in other embodiments, the protrusion 513 can be fixedly connected to the inner wall of the inner ring of the connecting flange 110 by welding, and the protrusion 513 can also be detachably connected to the inner wall of the inner ring of the connecting flange 110 by bolt connection.

[0052] By adopting the above technical solution, multiple connecting rods 520 are driven to move in the through hole 511 through the driving member 540, so that the connecting rod 520 drives the hammer 530 to move toward the inner ring of the connecting flange 110, so that the hammer 530 applies an impact load to the inner ring of the connecting flange 110, and the connecting flange 110 can indirectly apply an impact load to the main bearing 700, so as to facilitate the observation of the operating condition of the main bearing 700 when the main bearing 700 is subjected to continuous impact. The arrangement of at least one connecting rod 520 and at least one hammer 530 can observe the operating condition of the main bearing 700 when the main bearing 700 is subjected to impact at different positions, thereby improving the test effect of the main bearing 700 under the impact load; the arrangement of the connecting rod 520 and the hammer 530 has a simple structure, improves the impact effect on the connecting flange 110, and thus indirectly improves the impact effect on the main bearing 700.

[0053] Combination Figures 1 to 4The driving member 540 includes a connecting plate 541 and an impact loading motor 542 . The connecting plate 541 is located in the fixed bracket 510 . One end of the connecting rod 520 is hingedly disposed on the connecting plate 541 . The impact loading motor 542 is used to drive the connecting plate 541 to reciprocate in the fixed bracket 510 .

[0054] In this embodiment, the cross-section of the connecting plate 541 is set as a pentagon, and a hinge groove 543 is opened on the connecting plate 541 along the circumference of the connecting plate 541. A rotating shaft 544 is fixedly set at the end of the connecting rod 520 close to the connecting plate 541. The rotating shaft 544 is passed through and rotatably connected to the surface opposite to the hinge groove 543. The connecting rod 520 is hinged on the connecting plate 541 through the rotating shaft 544 and the hinge groove 543. The five connecting rods 520 are respectively hinged at the positions of the five vertices of the pentagonal connecting plate 541; the impact loading motor 542 drives the connecting plate 541 to rotate through the reducer 600. The reducer 600 is an independent component composed of a gear transmission, a worm transmission and a gear and worm transmission enclosed in a rigid shell, and is often used as a reduction transmission device between a prime mover and a working member; the specific structure of the reducer 600 will not be repeated in this embodiment.

[0055] By adopting the above technical solution, the connecting plate 541 is driven to reciprocate by the impact loading motor 542. Since the connecting rod 520 is hingedly arranged on the connecting plate 541, one end of the connecting rod 520 rotates at the hinge on the connecting plate 541, thereby driving the connecting rod 520 to move back and forth in the through hole 511, so that the connecting rod 520 can drive the hammer 530 to continuously impact the inner ring of the connecting flange 110; the setting of the connecting plate 541 can realize the simultaneous driving of multiple connecting rods 520, so that multiple hammers 530 impact the inner ring of the connecting flange 110 at the same time, thereby improving the driving effect of multiple hammers 530; by adjusting the speed of the impact loading motor 542, multiple hammers 530 have different impact forces on the inner wall of the connecting flange 110, thereby further improving the test effect of the simulation test of the main bearing 700 under different impact loads.

[0056] Combination Figures 1 to 4 The frame 100 includes a platform 120 and a gantry 130 arranged on the platform 120, an oil tank 140 is arranged in the gantry 130, a connecting flange 110 is located in the gantry 130, and the connecting flange 110 and the main bearing 700 are partially located in the oil tank 140, an opening 141 is opened on the oil tank 140, an abutting stud 142 for abutting on the connecting flange 110 is penetrated and threadedly connected in the opening 141, and a blocking member for blocking the opening 141 when the opening 141 is not needed is arranged in the opening 141.

[0057] In this embodiment, the platform 120 is made of cast iron, the gantry 130 is in an inverted "U" shape, the opening 141 of the inverted "U" shaped gantry 130 is arranged toward the position where the oil tank 140 is located, and the adjustment bolt 310 is passed through and threadedly connected to the top of the gantry 130; the connecting flange 110 and one third of the main bearing 700 are located in the oil tank 140, and the connecting flange 110 is clamped in the oil tank 140 in a clamping manner; in other embodiments, the connecting flange 110 and Half of the main bearing 700 is arranged in the oil tank 140, and the connecting flange 110 can also be detachably connected to the oil tank 140 by bolt connection; in the present embodiment, one end of the abutting stud 142 abuts on the connecting flange 110, and the other end is passed through the bolt hole 440 of the loading disc 410, and the abutting stud 142 is fixed by tightening the nut; the sealing member includes a plug, which is inserted into the opening 141 by interference fit; in other embodiments, the sealing member can be replaced by a rubber plug.

[0058] By adopting the above technical solution, by pouring the lubricating oil into the oil tank 140, when the main bearing 700 rotates on the connecting flange 110, the main bearing 700 can rotate and contact with the lubricating oil in the oil tank 140, thereby realizing lubrication of the main bearing 700, which is convenient for observing the lubrication condition of the main bearing 700 when the main bearing 700 is radially loaded, axially loaded and impact loaded, thereby further improving the test effect of the simulated loading test of the main bearing 700; the setting of the abutting stud 142 can apply an overturning force to the connecting flange 110 at the bottom of the connecting flange 110, so that the connecting flange 110 applies an overturning force to the main bearing 700, which is convenient for observing the operation condition of the main bearing 700 when the main bearing 700 is subjected to the overturning force, and improves the provision range of the axial loading force of the main bearing 700, and the setting of the sealing member can block the opening 141 when the opening 141 is not needed, thereby preventing the lubricating oil in the oil tank 140 from flowing out.

[0059] Combination Figures 1 to 4 The platform 120 is detachably connected to a support platform 121, and the support platform 121 is detachably connected to a first bearing 122. The loading disc 410 is sleeved on the outer ring of the first bearing 122, and the driving end of the impact loading motor 542 is penetrated and fixedly connected to the inner ring of the first bearing 122.

[0060] In this embodiment, a slide groove 123 is provided on the platform 120 along the axial direction of the connecting flange 110, and a plurality of slide grooves 123 are provided along the radial direction of the connecting flange 110. The cross section of the slide groove 123 is set in a "T" shape. First connecting blocks 124 are provided on both sides of the support platform 121 and are located near the platform 120. The first connecting block 124 is penetrated and threadedly connected with a first connecting bolt 125 for abutting against the bottom wall of the slide groove 123; by screwing the first connecting bolt 125 on the first connecting block 124, the first connecting The bolt 125 abuts against the bottom wall of the slide groove 123, thereby fixing the support platform 121 to any position along the length direction of the slide groove 123. By adjusting the position of the support platform 121, the position of the hammer 530 is adjusted; second connecting blocks 126 are provided on both sides of the first bearing 122, and the second connecting blocks 126 are provided with second connecting bolts 127 for plugging in and threadedly connected to the support platform 121. The first bearing 122 is detachably connected to the support platform 121 through the second connecting blocks 126 and the second connecting bolts 127.

[0061] By adopting the above-mentioned technical scheme, the setting of the support platform 121 can support the impact loading motor 542, thereby indirectly improving the rotation effect of the impact loading motor 542 driving the driving plate to rotate; by detachably connecting the support platform 121 to the support platform 121, it is convenient to remove the support platform 121 to adjust the position of the support platform 121, so that the impact loading motor 542 adjusts the impact position of the hammer 530, thereby further improving the test effect of simulating loading on the main bearing 700; the setting of the first bearing 122 can prevent the driving plate from tilting during rotation, thereby improving the driving effect of the connecting plate 541; by sleeve-mounting the loading disc 410 on the outer ring of the first bearing 122, the first bearing 122 can support the loading disc 410, indirectly improving the effect of the studs and tightening nuts on the loading disc 410 on the connecting flange 110 to provide loading force, thereby further improving the test effect of the axial loading test of the main bearing 700.

[0062] Combination Figures 1 to 4 The driving device 200 includes at least one driving motor 210 and at least one driving gear 220. The driving motor 210 and the driving gear 220 are arranged in a one-to-one correspondence. The driving gear 220 is connected to the driving end of the driving motor 210, and the driving gear 220 is used to mesh with the inner gear ring 710 of the main bearing 700.

[0063] In this embodiment, three groups of drive motors 210 and drive gears 220 are provided, and the three groups of drive motors 210 and drive gears 220 are respectively located at the top of the inner ring gear 710 and the opposite sides of the inner ring gear 710, and the drive gear 220 is engaged with the inner ring gear 710 to prevent the main bearing 700 from being disengaged from the mounting hole 111; the drive motor 210 drives the drive gear 220 to rotate through the reducer 600, and the reducer 600 is an independent component composed of a gear transmission, a worm transmission, and a gear and worm transmission enclosed in a rigid shell, and is often used as a reduction transmission device between a prime mover and a working part; the specific structure of the reducer 600 is no longer described in detail in this embodiment; the drive motor 210 and the impact loading motor 542 are respectively located on both sides of the gantry 130.

[0064] By adopting the above technical solution, the driving motor 210 drives the driving gear 220 to rotate. Since the driving gear 220 is engaged with the inner ring gear 710 of the main bearing 700, the driving gear 220 can drive the inner ring gear 710 to rotate, thereby making the inner ring gear 710 drive the main bearing 700 to rotate. The arrangement of the driving motor 210 and the driving gear 220 improves the driving effect of the main bearing 700 when it is subjected to loading force.

[0065] Combination Figures 1 to 4 A support body 150 is detachably connected to the platform 120, and at least one second bearing 151 is arranged on the support body 150. The second bearing 151 corresponds to the drive motor 210 one by one. The driving end of the drive motor 210 is connected to the inner ring of the second bearing 151, and an adjusting member for adjusting the position of the second bearing 151 along the radial direction of the connecting flange 110 is arranged on the support body 150.

[0066] Combination Figures 1 to 4 In this embodiment, the height of the support body 150 decreases step by step from the middle to both sides, and the three groups of drive motors 210 and drive gears 220 are respectively located in the middle of the support body 150 and on both sides of the support body 150; third connecting blocks 152 are arranged on both sides of the second bearing 151, and the adjusting member includes a third connecting bolt 153 and an adjusting hole 154, the third connecting bolt 153 is penetrated on the third connecting block 152, and the third connecting bolt 153 is used to be plugged and threadedly connected in the adjusting hole 154 of the support body 150, the adjusting hole 154 is provided on the support body 150, and a plurality of adjusting holes 154 are provided along the radial direction of the connecting flange 110, the second bearing 151 is detachably connected to the support body 150 through the third connecting block 152 and the third connecting bolt 153, and the adjusting holes 154 at different positions are selected by the third connecting bolt 153, so that the plurality of drive gears 220 are suitable for main bearings 700 of different specifications, thereby improving the applicability of the driving device 200.

[0067] Combination Figures 1 to 4In this embodiment, a fourth connecting block 155 is provided on the support body 150 and on both sides of the support body 150, and a fourth connecting bolt 156 is passed through and threadedly connected to the fourth connecting block 155. The rod portion of the fourth connecting bolt 156 is used to abut against the bottom wall of the slide groove 123. By screwing the fourth connecting bolt 156 on the fourth connecting block 155, the fourth connecting bolt 156 abuts against the bottom wall of the slide groove 123, thereby adjusting the position of the driving gear 220 along the axial direction of the connecting flange 110, so that the driving gear 220 is further suitable for main bearings 700 of different specifications; a cushion block 160 is provided between the support body 150 and the platform 120, and the cushion block 160 is fixed between the support body 150 and the platform 120 by the fourth connecting bolt 156. The arrangement of the cushion block 160 facilitates the overall height adjustment of the support body 150.

[0068] By adopting the above technical scheme, the setting of the support body 150 can support the driving motor 210, thereby improving the driving effect of the driving motor 210 on the main bearing 700; the setting of the second bearing 151 can prevent the driving end of the driving motor 210 from tilting during rotation, thereby indirectly improving the driving effect on the main bearing 700; by detachably connecting the support body 150 to the platform 120, it is convenient to adjust the position of the support body 150, thereby facilitating the position adjustment of the driving gear 220, and further improving the driving effect on the main bearing 700; the setting of the adjusting member facilitates the adjustment of the position of the second bearing 151 along the radial direction of the connecting flange 110, so that multiple driving gears 220 are evenly distributed along the circumference of the inner ring 710, thereby further improving the driving effect on the main bearing 700, and is suitable for main bearings 700 of different specifications.

[0069] The driving motor 210 drives the driving gear 220 to rotate, so that the driving gear 220 drives the inner gear ring 710 to rotate, so that the inner gear ring 710 drives the main bearing 700 to rotate. At this time, the adjusting bolt 310 is screwed on the frame 100, so that the rod of the adjusting bolt 310 acts on the connecting flange 110 along the radial direction of the connecting flange 110, and the connecting flange 110 can act on the main bearing 700 along the radial direction of the main bearing 700, which is convenient for observing the rotation of the main bearing 700 when the main bearing 700 is subjected to radial loading force; by screwing the tightening nut on the stud, the tightening nut is abutted against the surface of the connecting flange 110 and the loading disk 410 that are separated from each other, so that the stud acts on the connecting flange 110 axially along the connecting flange 110, and the connecting flange 110 can act on the main bearing 700 axially along the main bearing 700. , which is convenient for observing the rotation of the main bearing 700 when the main bearing 700 is subjected to axial loading force; the impact loading motor 542 can drive the connecting plate 541 to rotate, so that the connecting rod 520 rotates at the hinge on the connecting plate 541, and the connecting rod 520 can drive the hammer 530 to continuously impact the inner ring of the connecting flange 110, so that the connecting flange 110 continuously impacts the main bearing 700, which is convenient for observing the rotation of the main bearing 700 when the main bearing 700 is subjected to continuous impact; when the main bearing 700 rotates in the oil tank 140, the lubricating oil can lubricate the main bearing 700, which is convenient for observing the lubrication condition of the main bearing 700 when the main bearing 700 is simulated loaded, thereby improving the diversity of the simulated loading test of the main bearing 700, thereby improving the test effect of the simulated loading test of the main bearing 700.

[0070] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0071] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A tunnel boring machine main bearing simulation loading test device, characterized in that: The invention comprises a frame (100) and a connecting flange (110) located inside the frame (100), wherein the connecting flange (110) is used for installing a main bearing (700) of a tunnel boring machine, and further comprises a driving device (200), a radial loading device (300), an axial loading device (400) and an impact loading device (500), wherein the driving device (200) is used for driving the main bearing (700) to rotate relative to the connecting flange (110), the radial loading device (300) is used for radially acting on the connecting flange (110) to provide radial loading to the main bearing (700), the axial loading device (400) is used for axially acting on the connecting flange (110) to provide axial loading to the main bearing (700), and the impact loading device (500) is used for impacting the inner ring of the connecting flange (110) to apply an impact load to the main bearing (700).

2. The tunnel boring machine main bearing simulation loading test device according to claim 1 is characterized in that: The radial loading device (300) comprises an adjusting bolt (310), the adjusting bolt (310) being passed through and threadedly connected to the frame (100), the tightening direction of the adjusting bolt (310) being arranged along the radial direction of the connecting flange (110), and the rod portion of the adjusting bolt (310) being used for abutting against the connecting flange (110).

3. The tunnel boring machine main bearing simulation loading test device according to claim 1, characterized in that: The axial loading device (400) comprises a loading disc (410) and at least one loading rod (420); the loading disc (410) is coaxially arranged with the connecting flange (110); the loading rod (420) is arranged between the loading disc (410) and the connecting flange (110); and the loading rod (420) is provided with a loading member (430) for applying a tensile force to the connecting flange (110) along the length direction of the loading rod (420).

4. The tunnel boring machine main bearing simulation loading test device according to claim 3 is characterized in that: The loading rod (420) is configured as a stud, and the two ends of the stud are respectively inserted into the connecting flange (110) and the loading disc (410). The loading member (430) includes tightening nuts which are sleeved and threadedly connected to the two ends of the stud, and the tightening nuts on both sides are respectively used to abut against two surfaces of the loading disc (410) and the connecting flange (110) which are opposite to each other.

5. The tunnel boring machine main bearing simulation loading test device according to claim 4, characterized in that: The impact loading device (500) includes a fixed bracket (510), at least one connecting rod (520) and at least one hammer (530), wherein the fixed bracket (510) is connected to the inner ring of the connecting flange (110), and at least one through hole (511) is provided on the fixed bracket (510), wherein the through hole (511) corresponds one-to-one to the connecting rod (520), and the through hole (511) is used for allowing the connecting rod (520) to pass through, wherein the connecting rod (520) corresponds one-to-one to the hammer (530), and the hammer (530) is connected to the end of the connecting rod (520) close to the connecting flange (110), and a driving member (540) is provided in the fixed bracket (510) for driving the plurality of connecting rods (520) to move in the through hole (511) so as to drive the hammer (530) to impact the inner ring of the connecting flange (110).

6. The tunnel boring machine main bearing simulation loading test device according to claim 5, characterized in that: The driving member (540) comprises a connecting plate (541) and an impact loading motor (542); the connecting plate (541) is located in the fixed bracket (510); one end of the connecting rod (520) is hingedly arranged on the connecting plate (541); and the impact loading motor (542) is used to drive the connecting plate (541) to reciprocate in the fixed bracket (510).

7. The tunnel boring machine main bearing simulation loading test device according to claim 6, characterized in that: The frame (100) comprises a platform (120) and a gantry (130) arranged on the platform (120); an oil tank (140) is arranged in the gantry (130); the connecting flange (110) is located in the gantry (130); the connecting flange (110) and the main bearing (700) are both partially located in the oil tank (140); an opening (141) is provided in the oil tank (140); an abutting stud (142) for abutting against the connecting flange (110) is penetrated and threadedly connected in the opening (141); and a blocking member for blocking the opening (141) when the opening (141) is not needed is provided in the opening (141).

8. The tunnel boring machine main bearing simulation loading test device according to claim 7, characterized in that: The platform (120) is detachably connected to a support platform (121), the support platform (121) is detachably connected to a first bearing (122), the loading disc (410) is sleeved on the outer ring of the first bearing (122), and the driving end of the impact loading motor (542) is passed through and fixedly connected to the inner ring of the first bearing (122).

9. The tunnel boring machine main bearing simulation loading test device according to claim 7, characterized in that: The driving device (200) comprises at least one driving motor (210) and at least one driving gear (220), wherein the driving motor (210) and the driving gear (220) are arranged in a one-to-one correspondence, the driving gear (220) is connected to the driving end of the driving motor (210), and the driving gear (220) is used to mesh with the inner gear ring (710) of the main bearing (700).

10. The tunnel boring machine main bearing simulation loading test device according to claim 9, characterized in that: A support body (150) is detachably connected to the platform (120), and at least one second bearing (151) is provided on the support body (150). The second bearing (151) corresponds to the drive motor (210) one by one, and the drive end of the drive motor (210) is connected to the inner ring of the second bearing (151). The support body (150) is provided with an adjustment member for adjusting the position of the second bearing (151) along the radial direction of the connecting flange (110).

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