Bridge erecting machine capable of being used in inclined state

Abstract

The invention discloses a bridge girder erection machine capable of being used in an inclined state, which comprises a main beam, a front supporting leg assembly, a rear supporting leg assembly and two main supporting leg assemblies, the main beam comprises two auxiliary beams which are arranged side by side front and back and have triangular sections, a plurality of middle connecting pieces are arranged between the two auxiliary beams, and the front ends and the rear ends of the middle connecting pieces are fixed on the two auxiliary beams; bottom guide rail beams extending leftwards and rightwards are welded and fixed to the bottoms of the front portion and the rear portion of the auxiliary beam. Upper guide wheels of upper moving guide frame bodies installed on the tops of the two main supporting leg assemblies abut against lower guide rails fixed to the bottom faces of the bottom guide rail beams in a pressed mode. The device can be used on an inclined beam plate and cannot automatically incline to a low position, the rear supporting leg assembly and the front supporting leg assembly move in a gear and rack mode, a reverse roller device does not need to be used, it is guaranteed that the device and a main beam can normally move, and normal use is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of bridge erecting machine technology, and more specifically to a bridge erecting machine usable in an inclined state. Background Technology

[0002] Currently, bridge erecting machines are generally used on flat bridge piers and beams, and their construction is done by horizontal movement. However, when the bridge beams are tilted, existing bridge erecting machines cannot be used. The main beam and lifting trolley will move along the corresponding tracks and rollers to a lower position, posing a safety hazard.

[0003] Meanwhile, in existing bridge erecting machines, the movement of the main beam and corresponding legs, such as the rear legs, is driven by anti-roller devices. When this structure is used on inclined beams, since the main beam of the bridge erecting machine is also inclined, the main beam will automatically move to a lower position without the use of anti-rollers, and cannot move to a higher position, causing the anti-rollers to fail. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bridge erecting machine that can be used in an inclined state. It can ensure that it will not automatically tilt to a lower position when used on an inclined beam. Moreover, the rear support leg assembly and the front support leg assembly move in a gear and rack mode, without the need for anti-roller device, ensuring that it and the main beam can move normally and ensuring normal use.

[0005] The solution of the present invention to the aforementioned technical problem is:

[0006] A bridge erecting machine in an inclined state includes a main beam, a front leg assembly, a rear leg assembly, and two main leg assemblies. The main beam includes two secondary beams with triangular cross-sections arranged side by side. Multiple intermediate connectors are provided between the two secondary beams, and the front and rear ends of the intermediate connectors are fixed to the two secondary beams.

[0007] The bottom of the front and rear of the sub-beam is welded and fixed with left and right extending bottom guide rail beams. The upper guide wheels of the upper movable guide frame mounted on the top of the two main support leg assemblies press against the lower guide rail fixed on the bottom surface of the bottom guide rail beam.

[0008] The lower part of the side wall of the two bottom guide rail beams of the sub-beam that are far apart is fixed with a side connecting pipe extending to the left and right. A side rack is fixed on the outer side wall. The moving gear fixed on the output shaft of the moving reduction motor installed on the upper part of the main support leg assembly meshes with the corresponding side rack.

[0009] The upper part of the rear support leg assembly is equipped with a rear support leg connecting beam at the front and rear. The upper connecting arm is equipped with an upper connecting arm at the front and rear left and right sides of the top surface of the rear support leg connecting beam. The upper part of the upper connecting arm is movably connected to an upper guide wheel through a hinge shaft. The upper guide wheel is located on the top surface of the corresponding side of the corresponding bottom guide rail beam.

[0010] A second movable reduction motor is fixed on the outer wall of the middle part of the rear support leg connecting beam. A second horizontal drive gear is fixed on the output shaft of the second movable reduction motor. The second horizontal drive gear meshes with the corresponding side rack.

[0011] The front outrigger assembly is equipped with front outrigger connecting beams at both the front and rear parts. The front and rear left and right parts of the top surface of the front outrigger connecting beam are equipped with second upper connecting arms. The upper part of the second upper connecting arm is movably connected to a second upper guide wheel via a hinge shaft. The second upper guide wheel is located on the top surface of the corresponding side of the corresponding bottom guide rail beam.

[0012] A third moving reduction motor is fixed on the outer wall of the middle part of the front support leg connecting beam. A third horizontal drive gear is fixed on the output shaft of the third moving reduction motor. The third horizontal drive gear meshes with the corresponding side rack.

[0013] The front outrigger assembly includes a front outrigger main transverse beam extending forward and backward. Connecting seats are fixed on the top surfaces of the front and rear ends of the front outrigger main transverse beam. The upper part of the connecting seats is movably connected to the front outrigger connecting beam via a hinge shaft.

[0014] The main transverse beam of the front outrigger has two vertically extending rectangular through holes in its middle section. Two vertical guide sleeves are inserted into the corresponding through holes, with their outer side walls tightly against the inner side walls of the corresponding through holes. The bottom end of the vertical guide sleeve extends out of the bottom surface of the main transverse beam of the front outrigger. A connecting side plate fixed on its outer side wall is fixed to the bottom surface of the main transverse beam of the front outrigger. The upper part of the first telescopic sleeve is inserted into the corresponding vertical guide sleeve, with its outer side wall close to or tightly against the inner side wall of the vertical guide sleeve. Multiple insertion through holes are formed on the front and rear side plates of the first telescopic sleeve. The same fixing pin is inserted into the two topmost insertion through holes and the through holes on the left and right side plates at the bottom of the vertical guide sleeve to achieve fixation. The lower parts of the two first telescopic sleeves are fixed together by a transverse connecting beam.

[0015] The lower parts of the two first telescopic sleeves are each fitted with a second telescopic sleeve. The outer side wall of the second telescopic sleeve is in close contact with or near the inner side wall of the first telescopic sleeve. The lower parts of the two second telescopic sleeves are fixed together by a transverse connecting beam. The lower part of the second telescopic sleeve is fitted with a third telescopic sleeve. The outer side wall of the third telescopic sleeve is close to or in close contact with the inner side wall of the second telescopic sleeve. A bottom pressure plate is fixed to the bottom of the third telescopic sleeve. A bottom telescopic cylinder is movably connected to the connecting plate on the top surface of the bottom pressure plate through a bearing. The top end of the push rod of the bottom telescopic cylinder is movably connected to the second telescopic sleeve through a hinge shaft.

[0016] Connecting blocks are fixed at the front and rear of the bottom surface of the main transverse beam of the front support leg, and the upper parts of the two first electric hoists are movably connected to the corresponding connecting blocks through hinge shafts.

[0017] Hook connection parts are fixed on the outer side wall of one side plate at the bottom of the first telescopic sleeve and the second telescopic sleeve, and the hook of the first electric hoist corresponds to the hook connection part.

[0018] Self-lubricating plates are fixed on the top surfaces of the front and rear parts of the front support leg connecting beam. The top surface of the self-lubricating plate is close to or in close contact with the bottom surface of the lower guide rail fixed on the bottom surface of the bottom guide rail beam.

[0019] The vertical guide sleeve, the first telescopic sleeve, and the second telescopic sleeve are all connected to a connecting plate welded to the front and rear side plates at the bottom. The outer walls of the front and rear side plates of the first telescopic sleeve rest against the corresponding support rollers of the vertical guide sleeve. The outer walls of the front and rear side plates of the second telescopic sleeve rest against the corresponding support rollers of the first telescopic sleeve. The outer walls of the front and rear side plates of the third telescopic sleeve rest against the corresponding support rollers of the second telescopic sleeve.

[0020] The rear outrigger assembly includes a rear outrigger bottom transverse beam extending forward and backward. The front and rear parts of the bottom surface of the rear outrigger bottom transverse beam are fixed with left and right extending lower support seats. Nut blocks are fixed at the middle bottom surface of the left and right parts of the bottom plate of the lower support seat. The rear outrigger bottom support stud is screwed into the screw through hole of the nut block. Its top extends into the lower support seat and extends out of the top surface of the lower support seat. The bottom end of the rear outrigger bottom support stud extends out of the bottom surface of the lower support seat and is fixed with a rear support block.

[0021] Lifting connecting seats are fixed at the front and rear of the top surface of the transverse beam at the bottom of the rear outrigger. A rear lifting sleeve is fixed at the middle of the top surface of the lifting connecting seat. The middle support beam is located above the two rear lifting sleeves. An upper sleeve extending downward is fixed at the front and rear of the middle support beam. The rear lifting sleeve is inserted into the upper sleeve. The left and right side plates of the upper sleeve and the left and right side plates of the rear lifting sleeve are formed with corresponding positioning through holes. The front and rear of the lifting connecting seat are movably connected to the rear lifting cylinder through a hinge shaft. The top of the push rod of the rear lifting cylinder is movably connected to the middle support beam through a hinge shaft.

[0022] The outstanding effects of this invention are:

[0023] Compared with existing technologies, it can ensure that it will not automatically tilt to a lower position when used on inclined beams. Moreover, the rear and front support leg assemblies move using a gear and rack mechanism, eliminating the need for anti-roller devices and ensuring that they and the main beam can move normally and be used normally.

[0024] Its main support leg assembly can adjust the height of the bottom support feet of all telescopic support legs to ensure that the bottom support beam is set horizontally, ensuring that the mobile trolley can move stably back and forth on the bottom support beam. Moreover, through the bottom of the mobile transmission gear meshing with the mobile rack, it can ensure that the mobile trolley moves along the mobile rack and is locked when not moving.

[0025] Its lifting trolley engages with the rack on the main beam via a drive gear, preventing it from tilting and sliding along the main beam when the geared motor of its traveling mechanism stops running. At the same time, its electric hoist can assist in lifting, meeting a wider range of lifting requirements. Attached Figure Description

[0026] Figure 1 This is a partial structural schematic diagram of the present invention;

[0027] Figure 2 This is a partial structural diagram of the main beam.

[0028] Figure 3 This is a magnified view of a portion of the main beam;

[0029] Figure 4 This is a magnified view of another part of the main beam;

[0030] Figure 5 This is a partial structural diagram of the main support leg assembly on the beam slab;

[0031] Figure 6 yes Figure 5 A magnified view of a portion of the image;

[0032] Figure 7 yes Figure 5 A magnified view of another part;

[0033] Figure 8 This is a partial structural diagram of the main support leg assembly;

[0034] Figure 9 yes Figure 8 A magnified view of a portion of the image;

[0035] Figure 10 This is a partial structural diagram of the crane trolley and main beam;

[0036] Figure 11 This is a partial structural diagram of the crane trolley;

[0037] Figure 12 This is a partial structural diagram of the upper adjusting drum frame of the crane trolley;

[0038] Figure 13 This is a partial structural diagram showing the crane trolley being installed on the main beam at different angles;

[0039] Figure 14 This is a partial structural diagram of the trolley frame and components such as guide rails;

[0040] Figure 15 yes Figure 14 A magnified view of a portion of the image;

[0041] Figure 16 yes Figure 14 A magnified view of another part;

[0042] Figure 17 This is a partial structural diagram of the front outrigger assembly installed on the main beam;

[0043] Figure 18 yes Figure 17 A magnified view of a portion of the image;

[0044] Figure 19 yes Figure 17 A magnified view of another part;

[0045] Figure 20 This is a schematic diagram of the angle-changing structure of the front outrigger assembly;

[0046] Figure 21 This is a partial structural diagram of the rear outrigger assembly installed on the main beam;

[0047] Figure 22 yes Figure 21 A magnified view of a portion of the image;

[0048] Figure 23 yes Figure 21 A magnified view of another part;

[0049] Figure 24 This is a partial structural diagram of the rear outrigger assembly at different angles. Detailed Implementation

[0050] For example, see below. Figures 1 to 24 As shown, a bridge erecting machine in an inclined state includes a main beam 100, a front support leg assembly 40, a rear support leg assembly 50, and two main support leg assemblies 200. The main beam 100 includes two secondary beams 102 with triangular cross sections arranged side by side. A plurality of intermediate connectors 103 are provided between the two secondary beams 102, and the front and rear ends of the intermediate connectors 103 are fixed to the two secondary beams 102.

[0051] The bottom of the front and rear of the sub-beam 102 is welded and fixed with left and right extending bottom guide beams 104. The upper guide wheels 33 of the upper moving guide frame 32 installed on the top of the two main support leg assemblies 200 press against the lower guide rail 101 fixed on the bottom surface of the bottom guide beam 104.

[0052] The lower part of the side wall of the two bottom guide rail beams 104 of the sub-beam 102 that are far apart is fixed with a left-right extending side connecting pipe 105, and a side rack 106 is fixed on its outer side wall. The moving gear 381 fixed on the output shaft of the moving reduction motor 38 installed on the upper part of the main support leg assembly 200 meshes with the corresponding side rack 106.

[0053] The rear support leg assembly 50 is equipped with a rear support leg connecting beam 51 at the front and rear of the upper part. The upper connecting arm 52 is installed at the front and rear left and right of the top surface of the rear support leg connecting beam 51. The upper part of the upper connecting arm 52 is movably connected to the upper guide wheel 53 through a hinge shaft. The upper guide wheel 53 is located on the top surface of the corresponding side of the bottom guide rail beam 104.

[0054] A second moving reduction motor 54 is fixed on the outer wall of the middle part of the rear support leg connecting beam 51. A second horizontal drive gear 55 is fixed on the output shaft of the second moving reduction motor 54. The second horizontal drive gear 55 meshes with the corresponding side rack 106.

[0055] The front support leg assembly 40 is equipped with a front support leg connecting beam 41 at both the front and rear parts. The front and rear left and right parts of the top surface of the front support leg connecting beam 41 are equipped with a second upper connecting arm 42. The upper part of the second upper connecting arm 42 is movably connected to a second upper guide wheel 43 through a hinge shaft. The second upper guide wheel 43 is located on the top surface of the corresponding side of the bottom guide rail beam 104.

[0056] A third moving reduction motor 44 is fixed on the outer wall of the middle part of the front support leg connecting beam 41. A third horizontal drive gear 45 is fixed on the output shaft of the third moving reduction motor 44. The third horizontal drive gear 45 meshes with the corresponding side rack 106.

[0057] Furthermore, the front outrigger assembly 40 includes a front outrigger main transverse beam 46 extending front and rear. The front and rear top surfaces of the front outrigger main transverse beam 46 are both fixed with connecting seats, and the upper part of the connecting seats is movably connected to the front outrigger connecting beam 41 through a hinge shaft.

[0058] Furthermore, the middle part of the main transverse beam 46 of the front outrigger has two vertically extending rectangular through holes. Two vertical guide sleeves 47 are inserted into the corresponding through holes, with their outer side walls tightly attached to the inner side walls of the corresponding through holes. The bottom end of the vertical guide sleeve 47 extends out of the bottom surface of the main transverse beam 46 of the front outrigger. The connecting side plate fixed on its outer side wall is fixed to the bottom surface of the main transverse beam 46 of the front outrigger. The upper part of the first telescopic sleeve 471 is inserted into the corresponding vertical guide sleeve 47, with its outer side wall close to or tightly attached to the inner side wall of the vertical guide sleeve 47. Multiple insertion through holes are formed on the front and rear side plates of the first telescopic sleeve 471. The same fixing pin is inserted into the two topmost insertion through holes and the through holes of the left and right side plates at the bottom of the vertical guide sleeve 47 to achieve fixation. The lower parts of the two first telescopic sleeves 471 are fixed together by a transverse connecting beam.

[0059] The lower parts of the two first telescopic sleeves 471 are each fitted with a second telescopic sleeve 472. The outer side wall of the second telescopic sleeve 472 is close to or in close contact with the inner side wall of the first telescopic sleeve 471. The lower parts of the two second telescopic sleeves 472 are fixed together by a transverse connecting beam. The lower part of the second telescopic sleeve 472 is fitted with a third telescopic sleeve 473. The outer side wall of the third telescopic sleeve 473 is close to or in close contact with the inner side wall of the second telescopic sleeve 472. A bottom pressure plate is fixed to the bottom of the third telescopic sleeve 473. A bottom telescopic cylinder 474 (which is equipped with a displacement sensor and works with the pressure regulating valve and other accessories in the corresponding hydraulic system to control the push rod extension distance of the bottom telescopic cylinder 474; this is prior art and will not be described in detail here) is movably connected to the second telescopic sleeve 472 by a hinge shaft. Multiple insertion holes are formed on the front and rear side plates of the second telescopic sleeve 472 and the third telescopic sleeve 473.

[0060] Furthermore, the front and rear parts of the bottom surface of the main transverse beam 46 of the front support leg are fixed with connecting blocks, and the upper parts of the two first electric hoists 48 are movably connected to the corresponding connecting blocks through hinge shafts.

[0061] Hook connection parts are fixed on the outer side wall of one side plate at the bottom of the first telescopic sleeve 471 and the second telescopic sleeve 472, and the hook of the first electric hoist 48 corresponds to the hook connection part.

[0062] Furthermore, a self-lubricating plate 461 is fixed on the top surface of both the front and rear parts of the front support leg connecting beam 41. The top surface of the self-lubricating plate 461 is close to or in close contact with the bottom surface of the lower guide rail 101 fixed on the bottom surface of the bottom guide rail beam 104.

[0063] Furthermore, the lower front and rear side plates of the vertical guide sleeve 47, the first telescopic sleeve 471, and the second telescopic sleeve 472 are welded and fixed with a retaining wheel 477. The outer walls of the front and rear side plates of the first telescopic sleeve 471 rest against the corresponding retaining wheel 477 of the vertical guide sleeve 47. The outer walls of the front and rear side plates of the second telescopic sleeve 472 rest against the corresponding retaining wheel 477 of the first telescopic sleeve 471. The outer walls of the front and rear side plates of the third telescopic sleeve 473 rest against the corresponding retaining wheel 477 of the second telescopic sleeve 472.

[0064] In the above structure, when the front support leg assembly 40 is running, it can be hooked onto the corresponding hook connection part by the hook of the first electric hoist 48. When the first electric hoist 48 is running, the hook can be retracted or extended, which can lift and retract or extend the corresponding first telescopic sleeve 471 or second telescopic sleeve 472. After retracting or extending to the required position, the positioning pin is inserted into the corresponding insertion hole to fix the first telescopic sleeve 471 and the second telescopic sleeve 472, or fix the first telescopic sleeve 471 to the vertical guide sleeve 47. The third telescopic sleeve 473 is extended or retracted by the push rod of the bottom telescopic cylinder 474. After its position is adjusted, the positioning pin can be inserted into the corresponding insertion hole to connect and fix the second telescopic sleeve 472 and the third telescopic sleeve 473.

[0065] Furthermore, the rear support leg assembly 50 includes a rear support leg bottom transverse beam 56 extending front and rear. The front and rear parts of the bottom surface of the rear support leg bottom transverse beam 56 are fixed with left and right extending lower support seats 57. Nut blocks are fixed to the middle bottom surface of the left and right parts of the bottom plate of the lower support seat 57. The rear support leg bottom support stud 571 is screwed into the screw hole of the nut block. Its top extends into the lower support seat 57 and extends out of the top surface of the lower support seat 57. The bottom end of the rear support leg bottom support stud 571 extends out of the bottom surface of the lower support seat 57 and is fixed with a rear support block 572.

[0066] The front and rear of the top surface of the transverse beam 56 at the bottom of the rear support leg are both fixed with lifting connecting seats 58. The middle of the top surface of the lifting connecting seat 58 is fixed with a rear lifting sleeve 581. The middle support beam 59 is located above the two rear lifting sleeves 581. The front and rear of the middle support beam 59 are both fixed with downwardly extending upper sleeves 591. The rear lifting sleeves 581 are inserted into the upper sleeves 591. The left and right side plates of the upper sleeves 591 and the left and right side plates of the rear lifting sleeves 581 are all formed with corresponding left and right positioning through holes. The front and rear of the lifting connecting seat 58 are movably connected to the rear lifting cylinder 582 through a hinge shaft. The top of the push rod of the rear lifting cylinder 582 is movably connected to the middle support beam 59 through a hinge shaft.

[0067] Furthermore, the top surfaces of the front and rear ends of the central support beam 59 are both fixed with connecting seats, and the upper part of the connecting seats is movably connected to the rear support leg connecting beam 51 via a hinge shaft.

[0068] A second self-lubricating plate is fixed on the top surface of both the front and rear parts of the rear support leg connecting beam 51. The top surface of the second self-lubricating plate is close to or in close contact with the bottom surface of the lower guide rail 101 fixed on the bottom surface of the bottom guide rail beam 104.

[0069] In the above structure, the rear support leg assembly 50 can lower or raise the rear support block 572 by pushing or retracting the push rod of the rear lifting cylinder 582. After the position adjustment is completed, the positioning pin can be inserted into the corresponding positioning through hole of the upper sleeve 591 and the rear lifting sleeve 581 to fix the position.

[0070] By rotating the bottom support stud 571 of the rear outrigger, the height of the rear support block 572 can be further fine-tuned to ensure that its bottom surface can press against the top surface of the beam plate below.

[0071] Furthermore, the main support leg assembly 200 includes a bottom support beam 10 extending forward and backward. The bottom surface of the bottom support beam 10 is fixed with a plurality of bottom connecting beams 11 extending left and right. The left and right parts of the bottom connecting beams 11 extend out of the left and right side walls of the bottom support beam 10. The middle of the left and right parts of the bottom connecting beams 11 are formed with rectangular telescopic through holes 12. The telescopic support leg 13 is inserted into the rectangular telescopic through hole 12 of the corresponding bottom connecting beam 11 and cooperates with the rectangular telescopic through hole 11. The telescopic support leg 13 is a rectangular cylinder with a plurality of vertically arranged front and rear corresponding side through holes formed on its front and rear wall plates. The side through holes correspond to the positioning through holes 121 formed on the front and rear wall plates of the rectangular telescopic through holes 12. The positioning pin is inserted into the corresponding positioning through hole 121 and the side through hole.

[0072] The bottom support beam 10 has a front-to-back extending movable rack 14 fixed on the top surface of the middle part. The top surfaces of the bottom support beam 10 on both the left and right sides of the movable rack 14 are fixed with front-to-back extending movable guide rails 15. The two movable trolley frames 20 are located above the bottom rear support beam 10. The left and right front and rear parts of the movable trolley frame 20 are movably connected to the movable wheel frame 21 through a hinge shaft. The front and rear parts of the movable wheel frame 21 are movably connected to the movable wheel 22 through a hinge shaft. The outer wall of the middle part of the movable wheel 22 is formed with an annular groove. The movable guide rail 15 is inserted into the lower annular groove, and the top surface of the movable guide rail 15 presses against the top surface of the lower annular groove.

[0073] A motor mounting bracket 23 is fixed to the middle of one end of the mobile trolley frame 20. A geared motor 24 with a brake is fixed on the motor mounting bracket 23. The output shaft of the geared motor 24 extends into the motor mounting bracket 23 and is fixed with a moving drive gear 241. A moving transmission gear 231 is movably connected to the middle of the motor mounting bracket 23 through a hinge shaft. The moving drive gear 241 meshes with the moving transmission gear 231. The bottom of the moving transmission gear 231 meshes with the moving rack 14.

[0074] Furthermore, the top surface of the top plate of the mobile crane frame 20 is equipped with a support leg connecting frame 30. The front and rear parts of the support leg connecting frame 30 are formed with mounting holes. Two lifting cylinders 31 are inserted into the mounting holes and fixed on the support leg connecting frame 30. The top ends of the push rods of the two lifting cylinders 31 extend out of the top surface of the support leg connecting frame 30 and are fixed with connecting seats.

[0075] Furthermore, the connecting seat is inserted into the middle hole of the upper movable guide frame 32 and connected to the upper movable guide frame 32 via a hinge shaft.

[0076] The upper part of the upper movable guide frame 32 is movably connected by a hinge shaft to a plurality of left and right arranged upper guide wheels 33, which cooperate with the lower guide rail 101 fixed on the bottom surface of the left and right extending connecting beam fixed at the bottom of the upper main beam 100. The lower guide rail 101 is inserted into the upper groove of the annular groove formed in the middle of the upper guide wheel 33, and its bottom surface is in contact with or close to the bottom surface of the upper groove.

[0077] Furthermore, the base plate of the telescopic support leg 13 is formed with a central screw hole, and the telescopic screw 139 is screwed into the central screw hole. The upper part of the telescopic screw 139 extends into the telescopic support leg 13, and the lower end of the telescopic screw 139 extends out of the base plate of the telescopic support leg 13 and is equipped with a bottom support foot 132.

[0078] Furthermore, the bottom end of the telescopic screw 139 is formed with a sphere, which is inserted into the mounting hole formed in the middle of the bottom support foot 132. The bottom surface of the mounting hole is spherical and matches the outer wall surface of the sphere. Two blocking blocks 133 are fixed on the top surface of the bottom support foot 132. The middle of the two blocking blocks 133 forms a semi-circular hole with opposite walls. The two semi-circular holes form a circular hole. The bottom of the telescopic screw 139 is inserted into the circular hole. The inner side wall of the bottom end of the semi-circular hole is formed with an arc-shaped conical wall. The upper outer side wall of the sphere is close to the arc-shaped conical wall. The diameter of the sphere is larger than the inner diameter of the circular hole.

[0079] A side connecting seat is welded and fixed to the lower side wall of the telescopic support leg 13. An auxiliary pressing cylinder 18 is fixed in the middle of the top surface of the bottom plate of the side connecting seat. The bottom end of the push rod of the auxiliary pressing cylinder 18 extends out of the bottom surface of the bottom plate of the side connecting seat and is fixed with a connecting block with a spherical bottom surface. It is inserted into the concave hole formed in the middle of the top surface of the auxiliary block 142. The bottom surface of the connecting block is spherical and the inner wall surface of the concave hole is spherical. The two are matched. Two auxiliary fixing blocks 143 are fixed on the top surface of the auxiliary block 142. An arc-shaped groove is formed in the middle of the opposite wall surface of the two auxiliary fixing blocks 143. The push rod of the auxiliary pressing cylinder 18 is inserted into the arc-shaped groove. The top diameter of the connecting block is larger than the inner diameter of the circular through hole formed by the two arc-shaped grooves.

[0080] A connecting ear is welded and fixed on the outer wall of the left or right side of the bottom connecting beam 11. A hand chain hoist 16 is hung on the connecting ear, and the hook of the hand chain hoist 16 is aligned with the hanging hole of the lower connecting ear 138 fixed on the lower side wall of the telescopic support leg 13.

[0081] The two corresponding upper moving guide frames 32 are connected and fixed together by a central fixed beam.

[0082] In this embodiment, when the main support leg assembly 200 is in use, the hook of the hand chain hoist 16 can be hung on the corresponding hanging hole of the lower connecting ear 138. By manually pulling the hand chain hoist 16, the corresponding telescopic support leg 13 can be raised and lowered along the rectangular telescopic through hole 12.

[0083] In this embodiment, when the bottom support beam 10 is placed on the beam plate, the main support leg assembly 200 can push the push rods of all auxiliary clamping cylinders 18, so that the bottom surface of the auxiliary block 142 presses against the beam plate, achieving horizontal support. Since it has multiple auxiliary clamping cylinders 18, and each auxiliary clamping cylinder 18 is equipped with an external displacement sensor, it can assist the pushing distance of the push rod of the clamping cylinder 18 through the hydraulic system controller connected to the cylinder, so that the bottom surface of all auxiliary blocks 142 presses against the beam plate to ensure that the bottom support beam 10 is set horizontally (this method allows it to be installed on beam plates arranged in front and behind. When the side of the beam plate near the front or rear tilts outward and downward, it can be leveled to meet the needs of building and installing on uneven beam plates).

[0084] Then, pull the positioning pin out of the corresponding positioning through hole 121 and side through hole. Then, hang the hook of the hand chain hoist 16 on the hanging hole of the corresponding lower connecting ear 138. By manually pulling the hand chain hoist 16, the telescopic support leg 13 is lowered to a certain distance. Then, insert the positioning pin into the corresponding positioning through hole 121 and side through hole to fix the position of the telescopic support leg 13. At this time, the hook of the hand chain hoist 16 can be pulled out from the hanging hole of the corresponding lower connecting ear 138. Then, rotate the telescopic screw 139 to press the bottom support foot 132 against the beam plate to achieve support. At this time, the push rods of all auxiliary clamping cylinders 18 can be retracted to complete the fixing.

[0085] When in use, the two reduction motors 24 operate, which enables the moving transmission gear 231 to roll along the moving rack 14, so that the two moving gantry frames 20 can move back and forth. The main beam 100 is on the upper moving guide frame 32, so it will also move back and forth. The upper moving guide frame 32 is equipped with upper guide wheels 33, so that the main beam 100 can move left and right along the upper guide wheels 33.

[0086] Since the moving transmission gear 231 rolls along the moving rack 14, when the reduction motor 24 stops and brakes, the moving transmission gear 231 will not rotate, and the moving gantry frame 20 will not move, ensuring that the main beam 100 will not move back and forth, thus ensuring high safety.

[0087] Meanwhile, lower extension blocks are fixed to the bottom of both sides of the mobile crane frame 20. A limit plate is fixed to the bottom surface of the lower extension block, and a bottom self-lubricating block 29 is fixed to the top surface of the inner end of the limit plate. Its top surface is close to the bottom surface of the left and right sides of the top of the bottom support beam 10 to achieve a guiding function.

[0088] Among them, the lifting cylinder 31 is also equipped with an external displacement sensor. Its push rod can be pushed to the required height as needed. Its height adjustment also realizes the height adjustment of the upper moving guide frame 32, and its adjustment effect is good.

[0089] Furthermore, the top of the sub-beam 102 is fixed to the left and right extending top connecting beam 108, and the top surface of the top connecting beam 108 is fixed to the left and right extending guide rail 107, with the two lifting trolleys 300 positioned on the guide rail 107.

[0090] Furthermore, the lifting trolley 300 includes a trolley frame 310, and connecting seats 311 are fixed to the left and right front and rear parts of the bottom surface of the trolley frame 310. A traveling mechanism 320 is installed under each connecting seat 311.

[0091] The walking mechanism 320 includes a connecting frame 322. The left and right parts of the connecting frame 322 are movably connected to the walking wheels 324 through hinge shafts. The top of the main beam 100 below the walking mechanism 320 is fixed to the top of the left and right extending top connecting beam 108, and the top of the left and right extending guide rail 107 is fixed to the top surface of the main beam 100 below the walking mechanism 320. The upper part of the guide rail 107 is inserted into the lower part of the annular guide groove of the walking wheel 324. The top surface of the lower part of the annular guide groove presses against the top surface of the guide rail 107.

[0092] The lower connecting seat 321 is fixed in the middle of the top surface of the connecting frame of the walking mechanism 320. The lower connecting seat 321 is movably connected to the corresponding connecting seat 311 through a hinge shaft.

[0093] The connecting frames 322 of the two corresponding left and right walking mechanisms 320 are movably connected by a connecting beam 323;

[0094] The trolley frame 310 has a central through groove extending to the left and right in the middle. The upper adjusting drum frame 330 is located above the trolley frame 310. The bottom surfaces of the front and rear transverse beams of the upper adjusting drum frame 330 are movably connected to the guide wheels 331. The outer side wall of the guide wheels 331 is close to or near the inner side wall of the left or right side of the corresponding central through groove. The bottom surfaces of the left and right side beams of the upper adjusting drum frame 330 are fixed with bottom sliding plates 3310. The top surfaces of the left and right side beams of the corresponding trolley frame 310 are fixed with polytetrafluoroethylene self-lubricating plates 312. The bottom surface of the bottom sliding plates 3310 presses against the top surface of the polytetrafluoroethylene self-lubricating plates 312. The rear parts of the top surfaces of the left and right side beams of the trolley frame 310 are movably connected to the push cylinders 313 through connecting seats. The end of the push rod of the push cylinder 313 is movably connected to the rear connecting seat fixed on the rear wall of the transverse beam of the rear part of the upper adjusting drum frame 330 through a hinge shaft.

[0095] At least one walking wheel 324 in each connecting frame 322 has a walking gear 325 fixed on its outer end face. A reduction motor 325 is fixed in the middle of the outer side plate of the connecting frame 322. The output shaft of the reduction motor 325 extends out of the connecting frame 322 and is fixed with a drive gear 326. The drive gear 326 meshes with the corresponding walking gear 24.

[0096] The top surface of the top connecting beam 108 is fixed with a rack 109 extending to the left and right. The rack 109 is parallel to the guide rail 107, and the traveling gear 325 meshes with the corresponding rack 109.

[0097] The geared motor 325 is a motor with a brake.

[0098] Furthermore, an upper protective frame 314 is fixed to the top surface of the trolley frame 310, and the top cover of the upper protective frame 314 covers the top surface of the trolley frame 310.

[0099] The left side wall of the trolley frame 310 is fixedly connected to a front-to-back extending side support frame 315 by copper drum bolts. The top of the side support frame 315 is fixed to the upper left side of the support frame, and a front-to-back extending first guide rail 316 is fixed to the first guide rail 316. An electric hoist 317 is a belt-driven electric hoist.

[0100] Two winch assemblies 332 are fixed on the upper adjusting drum frame 330. A fixed pulley block 333 is fixed on the upper adjusting drum frame 330 below each winch assembly 332. At the same time, two movable pulley blocks are installed on the lifting device below, which correspond to the fixed pulley blocks 333. The combination of the wire rope with the winch assembly 332, the fixed pulley block 333 and the movable pulley block is a conventional structure and will not be described in detail here.

[0101] When the crane trolley 300 is in use, all the geared motors 325 operate, causing the corresponding drive gears 326 to rotate, which in turn drives the traveling gear 324 to rotate. The traveling gear 324 moves along the corresponding rack 109, while the traveling wheel 324 moves left and right along the guide rail 107. When it is not moving, since the geared motor 325 is a brake motor, it automatically locks. At this time, the traveling gear 324 will not rotate, thus locking it in this embodiment and preventing it from moving along the guide rail 107, ensuring its normal use.

[0102] Furthermore, its electric hoist 317 can move back and forth along the first guide rail 316, and with the lifting device, it can be used in different ways to perform more lifting operations to meet different lifting requirements.

[0103] In use, the bottom sliding plate 310 of the trolley frame 310 can be moved along the polytetrafluoroethylene self-lubricating plate 312 by pushing the push rods of the two push cylinders 313, changing its position to meet different lifting needs.

[0104] In this embodiment, the main beam 100 has connecting seats fixed on the bottom surfaces of the left and right ends of the top connecting beam 108 of the two secondary beams 102. Support pulleys 70 are movably connected to these seats. The left and right ends of the bottom guide rail beam 104 of the secondary beam 102 are movably connected to lower support pulleys 71 via hinge shafts. Each support pulley 70 is wound with a steel wire rope 72. The upper ends of the front and rear steel wire ropes 9 on the same side are movably connected to the same adjusting sleeve 73 (the total length between the two steel wire ropes 9 can be finely adjusted by rotating the adjusting sleeve 73 to meet installation requirements). The lower part of the steel wire rope 72 extends along the lower support pulley 71 towards the middle of the bottom guide rail beam 104, and its lower end is fixed with a plug-in sleeve 74. During use, when the main support leg assembly 200 is positioned... After completion, it is fixed to the beam or pier by anchors. When the main beam 100 is positioned, the middle fixed beam between the two upper movable guide frames 32 above it is fixed to the middle bottom surface of the reinforcing beam fixed between the two bottom guide rail beams 104 of the main beam 100 by a pin. At this time, the plug-in sleeve 74 at the lower end of the wire rope 72 is moved to the upper movable guide frame 32 of the main support leg assembly 200. The top surface of the upper movable guide frame 32 is fixed with a connecting ear. The positioning pin is inserted into the end through hole of the plug-in sleeve 74, the connecting ear and the side through hole of the corresponding bottom guide rail beam 104 to achieve positioning connection. At this time, the connection between the end of the main beam 100 and the main support leg assembly 200 is improved, further reducing the risk of the main beam 100 tilting to a lower position.

[0105] In this embodiment, a main support leg reduction motor 38 is fixed in the middle of the outer side wall of the upper movable guide frame 32. A main support leg drive gear 381 is fixed on the output shaft of the main support leg reduction motor 38, which meshes with the corresponding side rack 106. The main support leg drive gear 381 runs through the main support leg drive gear 381, which can drive the main beam 100 to move back and forth along the upper guide wheel 33 of the upper movable guide frame 32.

[0106] The front outrigger assembly 40 and the rear outrigger assembly 50 can be operated by the third moving reduction motor 44 and the second moving reduction motor 54, so that the third horizontal drive gear 45 and the second horizontal drive gear 55 roll along the side rack 106, thereby realizing the left and right movement of the front outrigger assembly 40 and the rear outrigger assembly 50 along the main beam 100. At this time, the front outrigger assembly 40 and the rear outrigger assembly 50 need to ensure that the bottom pressure plate and the rear support block 572 below are in the raised state.

[0107] In this embodiment, when crossing a span, the main support leg reduction motors 38 of the two main support leg assemblies 200 are operated to move the right end of the main beam 100 to the pier where the beam plate needs to be built. The front support leg assembly 40 is moved to the right end of the main beam 100, and its bottom pressure plate is lowered and pressed against the connecting part at the pier. Then, the rear support block 572 of the rear support leg assembly 50 is lowered and pressed against the beam plate. Then, the right main support leg assembly 200 is lifted by the corresponding crane trolley 300 and moved to the right to the beam plate at the corresponding position. Then, it is fixed and positioned in the aforementioned manner. Then, the left main support leg assembly 200 is lifted by the corresponding crane trolley 300 and moved to the right to the beam plate at the corresponding position. Then, it is installed and fixed. Then, the rear support block 572 of the rear support leg assembly 50 is retracted and then moved to the right along the main beam 100 to the corresponding position.

[0108] Finally, the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims.

Claims

1. A tilting condition available bridger, comprising a main beam (100), a front outrigger assembly (40), a rear outrigger assembly (50) and two main outrigger assemblies (200), characterized in that: The main beam (100) comprises two sub-beams (102) arranged side by side in front and back, the cross section of the two sub-beams (102) is triangular, and a plurality of intermediate connecting pieces (103) are arranged between the two sub-beams (102), the front and back ends of the intermediate connecting pieces (103) are fixed on the two sub-beams (102); The bottom part of the front part and the rear part of the sub-beam (102) is welded and fixed with a left and right extending bottom rail beam (104), the upper guide wheels (33) of the top mounted upper moving guide frame body (32) of the two main leg assemblies (200) are pressed against the bottom surface fixed lower rail (101) of the bottom rail beam (104); The lower part of the side wall of the two bottom rail beams (104) of the sub-beam (102) is fixed with a left and right extending side connecting pipe (105), the outer side wall of the side connecting pipe (105) is fixed with a side rack (106), the output shaft of the moving reduction motor (38) of the upper part of the main leg assembly (200) is fixed with a moving gear (381), and the moving gear (381) is engaged with the corresponding side rack (106); The front part and the rear part of the upper part of the rear leg assembly (50) are mounted with a rear leg connecting beam (51), the left part and the right part of the top surface of the front part and the rear part of the rear leg connecting beam (51) are mounted with an upper connecting arm (52), the upper part of the upper connecting arm (52) is movably connected with an upper guide wheel (53) through a hinge shaft, and the upper guide wheel (53) is located on the top surface of the corresponding side of the corresponding bottom rail beam (104); The middle part of the outer side wall of the rear leg connecting beam (51) is fixed with a second moving reduction motor (54), the output shaft of the second moving reduction motor (54) is fixed with a second horizontal drive gear (55), and the second horizontal drive gear (55) is engaged with the corresponding side rack (106); The front part and the rear part of the upper part of the front leg assembly (40) are mounted with a front leg connecting beam (41), the left part and the right part of the top surface of the front part and the rear part of the front leg connecting beam (41) are mounted with a second upper connecting arm (42), the upper part of the second upper connecting arm (42) is movably connected with a second upper guide wheel (43) through a hinge shaft, and the second upper guide wheel (43) is located on the top surface of the corresponding side of the corresponding bottom rail beam (104); The middle part of the outer side wall of the front leg connecting beam (41) is fixed with a third moving reduction motor (44), the output shaft of the third moving reduction motor (44) is fixed with a third horizontal drive gear (45), and the third horizontal drive gear (45) is engaged with the corresponding side rack (106).

2. A tilting condition available bridging machine according to claim 1, characterized in that: The front leg assembly (40) comprises a front and rear extending front leg main transverse beam (46), the top surface of the front end and the rear end of the front leg main transverse beam (46) is fixed with a connecting seat, and the upper part of the connecting seat is movably connected with the front leg connecting beam (41) through a hinge shaft.

3. A tilt state available bridging machine according to claim 2, characterized in that: The middle part of the front leg main transverse beam (46) is formed with two vertically extending rectangular section through holes, two vertical guide sleeves (47) are inserted into the corresponding through holes, the outer side wall of the vertical guide sleeve (47) is close to the inner side wall of the corresponding through hole, the bottom end of the vertical guide sleeve (47) extends out of the bottom surface of the front leg main transverse beam (46), the outer side wall of the bottom end of the vertical guide sleeve (47) is fixed on the bottom surface of the front leg main transverse beam (46), the first telescopic sleeve (471) is inserted into the corresponding vertical guide sleeve (47), the outer side wall of the first telescopic sleeve (471) is close to or close to the inner side wall of the vertical guide sleeve (47), a plurality of insertion holes are formed on the front and rear side plates of the first telescopic sleeve (471), the top two insertion holes and the through holes of the left and right side plates at the bottom of the vertical guide sleeve (47) are inserted into the same fixed pin shaft to realize fixation, and the lower parts of the two first telescopic sleeves (471) are fixed through the transverse connecting beam. The lower part of the two first telescopic sleeves (471) is inserted into the second telescopic sleeve (472), the outer side wall of the second telescopic sleeve (472) is close to or close to the inner side wall of the first telescopic sleeve (471), the lower parts of the two second telescopic sleeves (472) are fixed through the transverse connecting beam, the lower part of the second telescopic sleeve (472) is inserted into the third telescopic sleeve (473), the outer side wall of the third telescopic sleeve (473) is close to or close to the inner side wall of the second telescopic sleeve (472), the bottom of the third telescopic sleeve (473) is fixed with a bottom pressing plate, and the connecting plate on the top surface of the bottom pressing plate is movably connected with a bottom telescopic oil cylinder (474) through a bearing. The top end of the push rod of the bottom telescopic oil cylinder (474) is movably connected to the second telescopic sleeve (472) through a hinge shaft.

4. A tilt state available bridging machine according to claim 3, characterized in that: The bottom surface of the front leg main transverse beam (46) is fixed with a connecting block, and the upper part of the two first electric hoists (48) is movably connected to the corresponding connecting block through a hinge shaft. The outer side wall of one side plate of the bottom of the first telescopic sleeve (471) and the second telescopic sleeve (472) is fixed with a hook connecting part, and the hook of the first electric hoist (48) corresponds to the hook connecting part.

5. A tilt state available bridging machine according to claim 3, characterized in that: The top surface of the front part and the rear part of the front leg connecting beam (41) is fixed with a self-lubricating plate (461), and the top surface of the self-lubricating plate (461) is close to or close to the bottom surface of the lower guide rail (101) fixed on the bottom surface of the bottom guide rail beam (104).

6. A tilt state available bridging machine according to claim 3, characterized in that: The front and rear side plates of the lower part of the vertical guide sleeve (47), the first telescopic sleeve (471) and the second telescopic sleeve (472) are movably connected with the wheels (477) welded and fixed on the connecting plate, the outer side wall of the front and rear side plates of the first telescopic sleeve (471) is close to the corresponding wheels (477) of the vertical guide sleeve (47), the outer side wall of the front and rear side plates of the second telescopic sleeve (472) is close to the corresponding wheels (477) of the first telescopic sleeve (471), and the outer side wall of the front and rear side plates of the third telescopic sleeve (473) is close to the corresponding wheels (477) of the second telescopic sleeve (472).

7. The tilting condition available bridger according to claim 1, characterized in that: The rear leg assembly (50) comprises a rear leg bottom transverse beam (56) extending front-rear, the front and rear portions of the bottom surface of the rear leg bottom transverse beam (56) are fixed with left-right extending lower support seats (57), the middle bottom surface of the left and right portions of the bottom plate of the lower support seat (57) is fixed with a nut block, a rear leg bottom support stud (571) is screwed in the threaded through hole of the nut block, the top of the rear leg bottom support stud (571) extends into the lower support seat (57) and protrudes from the top surface of the lower support seat (57), the bottom end of the rear leg bottom support stud (571) extends from the bottom surface of the lower support seat (57) and is fixed with a rear support block (572); The front and rear portions of the top surface of the rear leg bottom transverse beam (56) are fixed with lifting connecting seats (58), the middle portion of the top surface of the lifting connecting seat (58) is fixed with a rear lifting sleeve (581), a middle support beam (59) is above the two rear lifting sleeves (581), the front and rear portions of the middle support beam (59) are fixed with downward extending upper sleeves (591), the rear lifting sleeve (581) is inserted into the upper sleeve (591), the left and right side plates of the upper sleeve (591) and the left and right side plates of the rear lifting sleeve (581) are formed with left-right corresponding positioning through holes, the front and rear portions of the lifting connecting seat (58) are movably connected with rear lifting oil cylinders (582) through hinge shafts, the top of the push rod of the rear lifting oil cylinder (582) is movably connected with the middle support beam (59) through a hinge shaft.

8. A tilt state available bridging machine according to claim 7, characterized in that: The top surface of the front end and the rear end of the middle support beam (59) is fixed with a connecting seat, the upper portion of the connecting seat is movably connected with a rear leg connecting beam (51) through a hinge shaft.

9. A tilt state available bridging machine according to claim 7, characterized in that: The top of the fixed left-right extending top connecting beam (108) of the sub-beam (102) is fixed with a left-right extending guide rail (107), and a trolley (300) is arranged on the guide rail (107).

10. A tilt state available bridging machine according to claim 9, characterized in that: The trolley (300) comprises a trolley frame (310), the bottom surface of the trolley frame (310) is fixed with connecting seats (311) on the left and right portions of the front and rear portions, and one walking mechanism (320) is arranged below each connecting seat (311); The walking mechanism (320) comprises a connecting frame (322), the left and right portions of the connecting frame (322) are movably connected with walking wheels (324) through hinge shafts, the upper portion of the guide rail (107) is inserted into the lower portion of the annular guide groove of the walking wheel (324), and the top surface of the lower portion of the annular guide groove is pressed against the top surface of the guide rail (107); The top surface of the connecting frame of the walking mechanism (320) is fixed with a lower connecting seat (321), and the lower connecting seat (321) is movably connected with the corresponding connecting seat (311) through a hinge shaft; The connecting frames (322) of the left and right corresponding two walking mechanisms (320) are movably connected through a connecting beam (323). The middle part of the trolley frame (310) is formed with a center through groove extending leftward and rightward, an upper adjusting reel frame (330) is above the trolley frame (310), the bottom surfaces of the front and rear two transverse beams of the upper adjusting reel frame (330) are movably connected with a supporting wheel (331), the outer side wall of the supporting wheel (331) is close to or close to the left or right inner side wall of the corresponding center through groove, the bottom surface of the left and right two side beams of the upper adjusting reel frame (330) is fixed with a bottom sliding plate (3310), the top surface of the left and right two side beams of the corresponding trolley frame (310) is fixed with a polytetrafluoroethylene self-lubricating plate (312) in the middle part, the bottom surface of the bottom sliding plate (3310) is pressed on the top surface of the polytetrafluoroethylene self-lubricating plate (312), and the top surface of the left and right two side beams of the trolley frame (310) is movably connected with a push oil cylinder (313) through a connecting seat. The end of the push rod of the push oil cylinder (313) is movably connected with a rear connecting seat fixed on the rear wall surface of the transverse beam at the rear of the upper adjusting reel frame (330) through a hinge shaft.

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