Auxiliary device for quickly assembling arch rib

Abstract

The invention discloses an auxiliary device for quickly assembling an arch rib, and relates to the technical field of bridge construction, the auxiliary device comprises two symmetrically arranged side rib arch sections and a middle rib arch section located between the two side rib arch sections, and a shell assembly is fixedly arranged at the top of any side rib arch section; a first driving mechanism is arranged at the right end of the inner side of the shell assembly, a second driving mechanism is arranged at the left end of the first driving mechanism, two sets of symmetrical guiding and positioning mechanisms are arranged at the left end of the inner side of the shell assembly, and a hinge mechanism fixed to the top of the middle rib arch section is arranged between the two sets of guiding and positioning mechanisms. When the side rib arch sections and the middle rib arch sections are hinged, a worker does not need to climb to a high position for high-altitude auxiliary alignment, in addition, the automation degree is high, and the construction risk can be effectively reduced while hinging can be completed more quickly.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to an auxiliary device for quickly assembling arch ribs. Background Art

[0002] An arch bridge refers to a bridge with an arch as the main load-bearing component in a vertical plane. Arch bridges have always been one of the main forms of large-span bridges. The main load-bearing structure of an arch bridge is the arch rib, which is mainly used to bear axial pressure.

[0003] The invention patent with authorization announcement number CN107524090B discloses a method for jacking and assembling the arch ribs of a steel tube arch bridge, which includes the following steps: 1) after the main longitudinal beam of the steel tube arch bridge is installed, the first and second arch rib segments and the first and second hydraulic oil jacks are installed; 2) one end of the third arch rib segment is hinged to the other end of the first or second arch rib segment, and a third hydraulic oil jack in a locked state is hinged between the third arch rib segment and the first or second arch rib segment hinged thereto; 3) the first and second arch rib segments are rotated and jacked up to the designed position; 4) the first, second and third arch rib segments are closed; 5) the first, second and third arch rib segments and the arch foot are welded, and the first, second and third hydraulic oil jacks are removed.

[0004] This construction method makes full use of the twisted shaft and hydraulic oil jack to complete the lifting and assembly of the arch ribs. On the premise of meeting the assembly accuracy of the arch ribs, it simplifies the construction process, reduces the investment in temporary facilities, and reduces safety risks.

[0005] However, after actual application by technicians in this field, it was found that the above method still has some shortcomings. The most obvious one is that when the suspended third arch rib segment is hinged to the end of the first arch rib segment or the second arch rib segment, in order to ensure smooth hinge, it is inevitably necessary for the operator to climb to the top of the first arch rib segment or the second arch rib segment for high-altitude auxiliary alignment, which is time-consuming and has a high construction safety risk.

[0006] Therefore, it is necessary to invent an auxiliary device for quickly assembling arch ribs to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide an auxiliary device for quickly assembling arch ribs. The device comprises a shell assembly, a first driving mechanism, a second driving mechanism, a guide positioning mechanism and a hinge mechanism, so that when the side rib arch segment and the middle rib arch segment are placed on the ground, the hinge mechanism is fixedly installed on the top of the middle rib arch segment, and the shell assembly is fixedly installed on the top of the side rib arch segment. Then, the first driving mechanism is used to drive the second driving mechanism to move left. During the left movement of the second driving mechanism, the guide positioning mechanism is driven, so that the two groups of guide positioning mechanisms are approached to the hinge mechanism. During this process, the guide positioning mechanism guides the hinge mechanism so that the hinge mechanism is aligned. Then, the shell assembly limits the second driving mechanism, and the first driving mechanism locks the two groups of guide positioning mechanisms, so as to complete the reinforced connection between the two groups of guide positioning mechanisms and the hinge mechanism, so as to solve the problem proposed in the above-mentioned background technology that when the suspended third arch rib segment is hinged to the end of the first arch rib segment or the second arch rib segment, in order to ensure smooth hinge, the operator inevitably needs to climb to the top of the first arch rib segment or the second arch rib segment for high-altitude auxiliary alignment, which is time-consuming and has a high construction safety risk.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an auxiliary device for quickly assembling arch ribs, comprising two symmetrically arranged side rib arch segments and a middle rib arch segment located between the two side rib arch segments, a shell assembly is fixedly arranged on the top of any one of the side rib arch segments, a first driving mechanism is arranged on the right end of the inner side of the shell assembly, a second driving mechanism is arranged on the left end of the first driving mechanism, two sets of mutually symmetrical guiding and positioning mechanisms are arranged on the left end of the inner side of the shell assembly, and a hinge mechanism fixed to the top of the middle rib arch segment is arranged between the two sets of guiding and positioning mechanisms;

[0009] The first driving mechanism drives the second driving mechanism to move left, and the second driving mechanism drives the guide positioning mechanism during the left movement. After being driven, the guide positioning mechanism guides the hinge mechanism. The shell assembly limits the second driving mechanism, and the first driving mechanism locks the two sets of guide positioning mechanisms to complete the reinforced connection between the two sets of guide positioning mechanisms and the hinge mechanism.

[0010] Preferably, the housing assembly comprises a U-shaped housing, an L-shaped housing and a limiting slide groove;

[0011] The U-shaped shell is fixedly arranged on the top of the side rib arch section, and two L-shaped shells are provided. The two L-shaped shells are symmetrical to each other and are both fixedly arranged on the left side of the U-shaped shell. The L-shaped shell is fixedly connected to the side rib arch section, and the limiting slide groove is opened through the outer surface of the L-shaped shell.

[0012] Preferably, the first driving mechanism comprises a reciprocating screw, a driving motor, an outer sleeve, a return spring, an inner sleeve, an outer sleeve plate and a locking pin;

[0013] The reciprocating screw passes through the U-shaped shell and is rotatably connected to the U-shaped shell through a bearing. The driving motor is fixedly arranged on the right side of the U-shaped shell and is transmission-connected to the reciprocating screw. The outer sleeve, the return spring and the inner sleeve are sequentially sleeved on the outside of the reciprocating screw from right to left. The outer sleeve is transmission-connected to the reciprocating screw. The return spring is fixedly connected between the outer sleeve and the inner sleeve. The inner sleeve is slidingly connected to the reciprocating screw and is slidably nested on the inside of the outer sleeve in a horizontal direction. The outer sleeve plate is fixedly sleeved on the outside of the outer sleeve and is slidably arranged on the inside of the L-shaped shell in a horizontal direction. Two locking pins are provided. The locking pins slide through the movable plate and are fixedly arranged on the left side of the outer sleeve plate.

[0014] Preferably, the second driving mechanism comprises a moving plate, an L-shaped connecting arm and a rack;

[0015] The movable plate is fixedly arranged at the left end of the inner sleeve, the L-shaped connecting arm is slidably arranged inside the limiting sliding groove and is fixedly connected to the movable plate, and the rack is slidably fitted to the outside of the L-shaped shell and is fixedly connected to the L-shaped connecting arm.

[0016] Preferably, the guiding and positioning mechanism comprises a threaded sleeve, a gear, a one-way screw, an end plate and a locking channel;

[0017] The threaded sleeve passes through the L-shaped shell and is rotatably connected to the L-shaped shell through a bearing. The gear is fixedly sleeved on the outside of the threaded sleeve and meshes with the adjacent rack. The one-way screw is threadedly connected to the inside of the threaded sleeve. The end plate is fixedly arranged on the inner end of the one-way screw. The locking channel passes through the side of the end plate in a horizontal direction.

[0018] Preferably, the guiding and positioning mechanism further includes a limiting sleeve, a guide cover, a reinforcement ring and an L-shaped guide rod;

[0019] The limiting sleeve is fixedly arranged on the inner side of the end plate, the air deflector is fixedly arranged on the inner end of the limiting sleeve, the reinforcement ring is fixedly arranged on the inner end of the air deflector, and the L-shaped guide rod slides through the L-shaped shell and is fixedly connected to the limiting sleeve.

[0020] Preferably, the hinge mechanism comprises a fixing seat and a hinge shaft;

[0021] The fixing seat is fixedly arranged on the top of the middle rib arch section, and the hinge shaft is rotatably arranged on the inner side of the fixing seat through a bearing.

[0022] The present invention also discloses a method for using an auxiliary device for quickly assembling an arch rib, and the method specifically comprises the following steps:

[0023] S1. Before installation, the side rib arch segment and the middle rib arch segment are placed on the ground, the hinge mechanism is fixedly installed on the top of the middle rib arch segment, the shell assembly is fixedly installed on the top of the side rib arch segment, the two side rib arch segments are suspended and fixed using a lifting device, and then the middle rib arch segment is suspended using a lifting device so that the middle rib arch segment reaches the preset position between the two side rib arch segments;

[0024] S2, at this time, the articulated mechanism is located between the two guide positioning mechanisms, and the drive motor is started. After the drive motor is started, the reciprocating screw is driven to rotate, and the reciprocating screw drives the outer sleeve to move left when rotating. When the outer sleeve moves left, the inner sleeve is driven to move left through the return spring, and the locking pin is driven to move left through the outer sleeve plate. When the inner sleeve moves left, the L-shaped connecting arm and the rack are driven to move left synchronously through the moving plate;

[0025] S3. When the rack moves to the left, it drives the adjacent gear to rotate. When the gear rotates, it drives the threaded sleeve to rotate synchronously. Since the limit sleeve is guided by the adjacent L-shaped guide rod, the threaded sleeve drives the end plate to move inward when it rotates. When the end plate moves inward, the guide cover and the reinforcement ring are driven inward through the limit sleeve.

[0026] S4, as the air deflector continues to move inward, the end of the articulated shaft contacts the inner wall of the air deflector, and subsequently as the air deflector continues to move inward, the air deflector guides the articulated shaft, thereby causing the articulated shaft to move toward the inside of the limiting sleeve. When the leftward movement distance of the outer sleeve reaches a first threshold, the articulated shaft enters the inside of the limiting sleeve under the guidance of the air deflector, and subsequently as the outer sleeve continues to move left, the articulated shaft continues to move deeper into the inside of the limiting sleeve;

[0027] S5, when the outer sleeve moves to the left by reaching the second threshold, the L-shaped connecting arm moves to the leftmost end of the inner side of the limiting slide groove, and the reinforcing ring fits the outer surface of the fixed seat. At this time, due to the obstruction of the limiting slide groove, the moving plate and the rack cannot continue to move to the left. Subsequently, as the outer sleeve continues to move to the left, the return spring is continuously compressed, and the outer plate continues to drive the locking pin to move to the left;

[0028] S6, when the outer sleeve moves to the left by a distance reaching the third threshold, the locking pin enters the inner side of the locking channel and reinforces the end plate through the locking channel. When the outer sleeve moves to the left by a distance reaching the fourth threshold, the outer sleeve moves to the leftmost end of the reciprocating thread outside the reciprocating screw, and the drive motor is stopped at this time;

[0029] S7. Gradually lower the middle rib arch segment by using the lifting equipment. The middle rib arch segment rotates around the hinge axis under the restriction of the fixing seat, and then completes the assembly with the two side rib arch segments. The middle rib arch segment and the two side rib arch segments are welded and fixed to each other, and then the arch feet of the two side rib arch segments are welded and fixed to the main longitudinal beam.

[0030] S8. Start the drive motor again. After the drive motor is started, it drives the reciprocating screw to rotate again. When the reciprocating screw rotates, it drives the outer sleeve to move right and reset. When the right movement distance of the outer sleeve reaches the fifth threshold, the outer sleeve arrives at the initial position, that is, the rightmost end of the reciprocating thread on the outside of the reciprocating screw. At this time, the drive motor is stopped, and then the hinged mechanism is removed from the top of the middle rib arch section, and the shell assembly is removed from the top of the side rib arch section.

[0031] Technical effects and advantages of the present invention:

[0032] The present invention is provided with a shell assembly, a first driving mechanism, a second driving mechanism, a guide positioning mechanism and a hinge mechanism, so that when the side rib arch segment and the middle rib arch segment are placed on the ground, the hinge mechanism is fixedly installed on the top of the middle rib arch segment, and the shell assembly is fixedly installed on the top of the side rib arch segment, and then the first driving mechanism is used to drive the second driving mechanism to move left, and the second driving mechanism drives the guide positioning mechanism during the left movement, so that the two groups of guide positioning mechanisms are close to the hinge mechanism. During this process, the guide positioning mechanism guides the hinge mechanism so that the hinge mechanism is aligned, and then the shell assembly limits the second driving mechanism, and the first driving mechanism locks the two groups of guide positioning mechanisms, thereby completing the reinforced connection between the two groups of guide positioning mechanisms and the hinge mechanism. Compared with the same type of devices and methods in the prior art, when the side rib arch segment and the middle rib arch segment are hinged, the present invention does not need to manually climb to a high position for high-altitude auxiliary alignment. In addition, the degree of automation is high, and the hinge can be completed faster while effectively reducing construction risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0034] Figure 2 It is a schematic cross-sectional structural diagram of the housing assembly of the present invention.

[0035] Figure 3 It is a schematic cross-sectional structural diagram of the first driving mechanism and the second driving mechanism of the present invention.

[0036] Figure 4 It is a schematic diagram of the structure of the guiding and positioning mechanism of the present invention.

[0037] Figure 5 It is a schematic diagram of the structure of the hinge mechanism of the present invention.

[0038] In the figure: 1. side rib arch section; 2. middle rib arch section; 3. shell assembly; 31. U-shaped shell; 32. L-shaped shell; 33. limiting slide groove; 4. first driving mechanism; 41. reciprocating screw; 42. driving motor; 43. outer sleeve; 44. return spring; 45. inner sleeve; 46. outer sleeve plate; 47. locking pin; 5. second driving mechanism; 51. moving plate; 52. L-shaped connecting arm; 53. rack; 6. guiding and positioning mechanism; 61. threaded sleeve; 62. gear; 63. one-way screw; 64. end plate; 65. locking channel; 66. limiting sleeve; 67. deflector; 68. reinforcement ring; 69. L-shaped guide rod; 7. hinge mechanism; 71. fixed seat; 72. hinge shaft. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1

[0041] The present invention provides Figure 1-Figure 5 An auxiliary device for quickly assembling arch ribs is shown, comprising two symmetrically arranged side rib arch segments 1 and a middle rib arch segment 2 located between the two side rib arch segments 1, a housing assembly 3 is fixedly arranged on the top of any one of the side rib arch segments 1, a first driving mechanism 4 is arranged on the inner right end of the housing assembly 3, a second driving mechanism 5 is arranged on the left end of the first driving mechanism 4, two sets of mutually symmetrical guiding and positioning mechanisms 6 are arranged on the inner left end of the housing assembly 3, and a hinge mechanism 7 fixed to the top of the middle rib arch segment 2 is arranged between the two sets of guiding and positioning mechanisms 6;

[0042] The first driving mechanism 4 drives the second driving mechanism 5 to move left, and the second driving mechanism 5 drives the guiding and positioning mechanism 6 during the leftward movement. After being driven, the guiding and positioning mechanism 6 guides the articulated mechanism 7. The shell assembly 3 limits the second driving mechanism 5, and the first driving mechanism 4 locks the two groups of guiding and positioning mechanisms 6 to complete the reinforced connection between the two groups of guiding and positioning mechanisms 6 and the articulated mechanism 7.

[0043] like Figure 2As shown, the shell assembly 3 includes a U-shaped shell 31, an L-shaped shell 32 and a limiting slide groove 33, wherein the U-shaped shell 31 is fixedly arranged on the top of the side rib arch segment 1, and two L-shaped shells 32 are provided. The two L-shaped shells 32 are symmetrical to each other and are both fixedly arranged on the left side of the U-shaped shell 31. The L-shaped shell 32 is fixedly connected to the side rib arch segment 1, and the limiting slide groove 33 is opened through the outer surface of the L-shaped shell 32.

[0044] By setting the above structure, when the side rib arch segment 1 and the middle rib arch segment 2 are placed on the ground, the hinge mechanism 7 is fixedly installed on the top of the middle rib arch segment 2, and the shell assembly 3 is fixedly installed on the top of the side rib arch segment 1, thereby avoiding the need for high-altitude installation operations and further reducing the difficulty of use.

[0045] like Figure 3 As shown, the first driving mechanism 4 includes a reciprocating screw 41, a driving motor 42, an outer sleeve 43, a return spring 44, an inner sleeve 45, an outer sleeve plate 46 and a locking pin 47, wherein the reciprocating screw 41 passes through the U-shaped housing 31 and is rotatably connected to the U-shaped housing 31 through a bearing, the driving motor 42 is fixedly arranged on the right side of the U-shaped housing 31 and is transmission-connected to the reciprocating screw 41, and the outer sleeve 43, the return spring 44 and the inner sleeve 45 are sequentially sleeved and arranged on the outside of the reciprocating screw 41 from right to left. The outer sleeve 43 is transmission-connected with the reciprocating screw 41, the return spring 44 is fixedly connected between the outer sleeve 43 and the inner sleeve 45, the inner sleeve 45 is slidingly connected with the reciprocating screw 41 and is slidably nested in the inner side of the outer sleeve 43 along the horizontal direction, the outer sleeve plate 46 is fixedly sleeved on the outer side of the outer sleeve 43 and is slidably arranged in the inner side of the L-shaped shell 32 along the horizontal direction, and two locking pins 47 are provided, and the locking pins 47 slide through the movable plate 51 and are fixedly arranged on the left side of the outer sleeve plate 46.

[0046] By setting the above structure, the driving motor 42 can drive the reciprocating screw 41 to rotate after it is started. When the reciprocating screw 41 rotates, it drives the outer sleeve 43 to move left. When the outer sleeve 43 moves left, the inner sleeve 45 is driven to move left through the return spring 44, and the locking pin 47 is driven to move left through the outer sleeve plate 46.

[0047] like Figure 3 As shown, the second driving mechanism 5 includes a moving plate 51, an L-shaped connecting arm 52 and a rack 53, wherein the moving plate 51 is fixedly arranged at the left end of the inner sleeve 45, the L-shaped connecting arm 52 is slidably arranged on the inner side of the limiting slide groove 33 and is fixedly connected to the moving plate 51, and the rack 53 is slidably fitted on the outer side of the L-shaped shell 32 and is fixedly connected to the L-shaped connecting arm 52.

[0048] By setting the above structure, when the inner sleeve 45 moves to the left, the moving plate 51 drives the L-shaped connecting arm 52 and the rack 53 to move to the left synchronously. When the L-shaped connecting arm 52 moves to the leftmost end of the inner side of the limiting slide groove 33, the moving plate 51 and the rack 53 cannot continue to move to the left due to the obstruction of the limiting slide groove 33. Subsequently, as the outer sleeve 43 continues to move to the left, the return spring 44 is continuously compressed, and the outer plate 46 continues to drive the locking pin 47 to move to the left.

[0049] like Figure 4 As shown, the guiding and positioning mechanism 6 includes a threaded sleeve 61, a gear 62, a one-way screw 63, an end plate 64, a locking channel 65, a limiting sleeve 66, a guide cover 67, a reinforcement ring 68 and an L-shaped guide rod 69, wherein the threaded sleeve 61 passes through the L-shaped shell 32 and is rotatably connected to the L-shaped shell 32 through a bearing, the gear 62 is fixedly sleeved on the outside of the threaded sleeve 61 and meshes with the adjacent rack 53, the one-way screw 63 is threadedly connected to the inside of the threaded sleeve 61, the end plate 64 is fixedly arranged on the inner end of the one-way screw 63, the locking channel 65 passes through the side of the end plate 64 in the horizontal direction, the limiting sleeve 66 is fixedly arranged on the inner side of the end plate 64, the guide cover 67 is fixedly arranged on the inner end of the limiting sleeve 66, the reinforcement ring 68 is fixedly arranged on the inner end of the guide cover 67, and the L-shaped guide rod 69 slides through the L-shaped shell 32 and is fixedly connected to the limiting sleeve 66.

[0050] like Figure 5 As shown, the hinge mechanism 7 includes a fixed seat 71 and a hinge shaft 72, wherein the fixed seat 71 is fixedly arranged on the top of the middle rib arch section 2, and the hinge shaft 72 is rotatably arranged on the inner side of the fixed seat 71 through a bearing.

[0051] By setting the above-mentioned guiding and positioning mechanism 6 and the articulated mechanism 7, when the rack 53 moves to the left, the adjacent gear 62 is driven to rotate, and when the gear 62 rotates, the threaded sleeve 61 is driven to rotate synchronously. Since the limiting sleeve 66 is guided by the adjacent L-shaped guide rod 69, the threaded sleeve 61 drives the end plate 64 to move inward when it rotates. When the end plate 64 moves inward, the air guide cover 67 and the reinforcement ring 68 are driven inward through the limiting sleeve 66. As the air guide cover 67 continues to move inward, the end of the hinge shaft 72 contacts the inner wall of the air guide cover 67. Subsequently, as the air guide cover 67 continues to move inward, the air guide cover 67 guides the hinge shaft 72, and then the hinge shaft 72 gradually enters the inner side of the limiting sleeve 66 under the guidance of the air guide cover 67 until the hinge operation is completed.

[0052] Example 2

[0053] The present invention also discloses a method for using an auxiliary device for quickly assembling an arch rib, and the method specifically comprises the following steps:

[0054] S1, the side rib arch segment 1 and the middle rib arch segment 2 are placed on the ground before installation, the hinge mechanism 7 is fixedly installed on the top of the middle rib arch segment 2, the shell assembly 3 is fixedly installed on the top of the side rib arch segment 1, the two side rib arch segments 1 are suspended and fixed by a lifting device, and then the middle rib arch segment 2 is suspended by a lifting device, so that the middle rib arch segment 2 arrives at the preset position between the two side rib arch segments 1;

[0055] S2, at this time, the articulated mechanism 7 is located between the two guide positioning mechanisms 6, and the drive motor 42 is started. After the drive motor 42 is started, the reciprocating screw 41 is driven to rotate, and the reciprocating screw 41 drives the outer sleeve 43 to move leftward when rotating. When the outer sleeve 43 moves leftward, the inner sleeve 45 is driven to move leftward through the return spring 44, and the locking pin 47 is driven to move leftward through the outer sleeve plate 46. When the inner sleeve 45 moves leftward, the L-shaped connecting arm 52 and the rack 53 are driven to move leftward synchronously through the moving plate 51;

[0056] S3, when the rack 53 moves to the left, it drives the adjacent gear 62 to rotate, and when the gear 62 rotates, it drives the threaded sleeve 61 to rotate synchronously. Since the limiting sleeve 66 is guided by the adjacent L-shaped guide rod 69, when the threaded sleeve 61 rotates, it drives the end plate 64 to move inwards. When the end plate 64 moves inwards, it drives the air guide cover 67 and the reinforcement ring 68 to move inwards through the limiting sleeve 66;

[0057] S4, as the air deflector 67 continues to move inward, the end of the hinge shaft 72 contacts the inner wall of the air deflector 67, and as the air deflector 67 continues to move inward, the air deflector 67 guides the hinge shaft 72, thereby causing the hinge shaft 72 to move toward the inside of the limiting sleeve 66. When the leftward movement distance of the outer sleeve 43 reaches the first threshold, the hinge shaft 72 enters the inside of the limiting sleeve 66 under the guidance of the air deflector 67, and as the outer sleeve 43 continues to move leftward, the hinge shaft 72 continues to move deep into the inside of the limiting sleeve 66.

[0058] S5, when the outer sleeve 43 moves to the left by a distance reaching a second threshold, the L-shaped connecting arm 52 moves to the leftmost end of the inner side of the limiting slide groove 33, and the reinforcing ring 68 is attached to the outer surface of the fixing seat 71. At this time, due to the obstruction of the limiting slide groove 33, the movable plate 51 and the rack 53 cannot continue to move to the left. Subsequently, as the outer sleeve 43 continues to move to the left, the return spring 44 is continuously compressed, and the outer plate 46 continues to drive the locking pin 47 to move to the left.

[0059] S6, when the outer sleeve 43 moves to the left by a distance reaching a third threshold, the locking pin 47 enters the inner side of the locking channel 65 and reinforces the end plate 64 through the locking channel 65. When the outer sleeve 43 moves to the left by a distance reaching a fourth threshold, the outer sleeve 43 moves to the leftmost end of the reciprocating thread on the outer side of the reciprocating screw 41, and the drive motor 42 is stopped at this time;

[0060] S7, gradually lowering the middle rib arch segment 2 by using the lifting equipment, the middle rib arch segment 2 rotates around the hinge shaft 72 under the restriction of the fixing seat 71, and then completes the assembly with the two side rib arch segments 1, the middle rib arch segment 2 and the two side rib arch segments 1 are welded and fixed to each other, and then the arch feet of the two side rib arch segments 1 are welded and fixed to the main longitudinal beam;

[0061] S8. Start the drive motor 42 again. After the drive motor 42 is started, it drives the reciprocating screw 41 to rotate again. When the reciprocating screw 41 rotates, it drives the outer sleeve 43 to move right and reset. When the rightward movement distance of the outer sleeve 43 reaches the fifth threshold, the outer sleeve 43 arrives at the initial position, that is, the rightmost end of the reciprocating thread on the outside of the reciprocating screw 41. At this time, the drive motor 42 is stopped, and then the hinge mechanism 7 is removed from the top of the middle rib arch segment 2, and the shell assembly 3 is removed from the top of the side rib arch segment 1.

[0062] Example 3

[0063] It should also be noted that the first threshold, the second threshold, the third threshold and the fourth threshold increase in sequence, and the first threshold, the second threshold, the third threshold, the fourth threshold and the fifth threshold are recorded for the convenience of accurately describing the actual working conditions of the scheme;

[0064] When the solution of the present application is actually produced, according to the actual specifications of the reciprocating screw 41 , the first threshold value, the second threshold value, the third threshold value, the fourth threshold value and the fifth threshold value are all specific values.

[0065] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary device for quickly assembling an arch rib, comprising two symmetrically arranged side rib arch segments (1) and a middle rib arch segment (2) located between the two side rib arch segments (1), characterized in that: A housing assembly (3) is fixedly arranged on the top of any of the side rib arch segments (1); a first driving mechanism (4) is arranged on the right inner end of the housing assembly (3); a second driving mechanism (5) is arranged on the left inner end of the first driving mechanism (4); two sets of mutually symmetrical guiding and positioning mechanisms (6) are arranged on the left inner end of the housing assembly (3); a hinge mechanism (7) fixed to the top of the middle rib arch segment (2) is arranged between the two sets of guiding and positioning mechanisms (6); The first driving mechanism (4) drives the second driving mechanism (5) to move leftward, and the second driving mechanism (5) drives the guide positioning mechanism (6) during the process of moving leftward. After being driven, the guide positioning mechanism (6) guides the hinge mechanism (7), and the shell assembly (3) limits the second driving mechanism (5). The first driving mechanism (4) locks the two groups of guide positioning mechanisms (6) to complete the reinforced connection between the two groups of guide positioning mechanisms (6) and the hinge mechanism (7).

2. The auxiliary device for rapidly assembling arch ribs according to claim 1, characterized in that: The housing assembly (3) comprises a U-shaped housing (31), an L-shaped housing (32) and a limiting sliding groove (33); The U-shaped shell (31) is fixedly arranged on the top of the side rib arch section (1), and two L-shaped shells (32) are provided. The two L-shaped shells (32) are symmetrical to each other and are both fixedly arranged on the left side of the U-shaped shell (31). The L-shaped shell (32) is fixedly connected to the side rib arch section (1), and the limiting sliding groove (33) is penetrated and opened on the outer surface of the L-shaped shell (32).

3. The auxiliary device for rapidly assembling arch ribs according to claim 2, characterized in that: The first driving mechanism (4) comprises a reciprocating screw (41), a driving motor (42), an outer sleeve (43), a return spring (44), an inner sleeve (45), an outer sleeve plate (46) and a locking pin (47); The reciprocating screw (41) penetrates the U-shaped housing (31) and is rotatably connected to the U-shaped housing (31) via a bearing. The driving motor (42) is fixedly arranged on the right side of the U-shaped housing (31) and is transmission-connected to the reciprocating screw (41). The outer sleeve (43), the return spring (44) and the inner sleeve (45) are sequentially sleeved and arranged on the outside of the reciprocating screw (41) from right to left. The outer sleeve (43) is transmission-connected to the reciprocating screw (41). The return spring (44) is fixedly connected to the inner sleeve (45). The outer sleeve (43) is connected between the outer sleeve (43) and the inner sleeve (45). The inner sleeve (45) is slidably connected to the reciprocating screw (41) and is slidably nested in the inner side of the outer sleeve (43) in the horizontal direction. The outer sleeve plate (46) is fixedly sleeved on the outer side of the outer sleeve (43) and is slidably arranged in the inner side of the L-shaped shell (32) in the horizontal direction. Two locking pins (47) are provided. The locking pins (47) slide through the movable plate (51) and are fixedly arranged on the left side of the outer sleeve plate (46).

4. The auxiliary device for rapidly assembling arch ribs according to claim 3, characterized in that: The second driving mechanism (5) comprises a moving plate (51), an L-shaped connecting arm (52) and a rack (53); The movable plate (51) is fixedly arranged at the left end of the inner sleeve (45), the L-shaped connecting arm (52) is slidably arranged inside the limiting sliding groove (33) and is fixedly connected to the movable plate (51), and the rack (53) is slidably fitted to the outside of the L-shaped shell (32) and is fixedly connected to the L-shaped connecting arm (52).

5. The auxiliary device for rapidly assembling arch ribs according to claim 4, characterized in that: The guiding and positioning mechanism (6) comprises a threaded sleeve (61), a gear (62), a one-way screw (63), an end plate (64) and a locking channel (65); The threaded sleeve (61) passes through the L-shaped housing (32) and is rotatably connected to the L-shaped housing (32) via a bearing; the gear (62) is fixedly sleeved on the outside of the threaded sleeve (61) and meshes with the adjacent rack (53); the one-way screw (63) is threadedly connected to the inside of the threaded sleeve (61); the end plate (64) is fixedly arranged on the inner end of the one-way screw (63); and the locking channel (65) passes through the side of the end plate (64) in a horizontal direction.

6. The auxiliary device for rapidly assembling arch ribs according to claim 5, characterized in that: The guiding and positioning mechanism (6) further comprises a limiting sleeve (66), a deflector (67), a reinforcement ring (68) and an L-shaped guiding rod (69); The limiting sleeve (66) is fixedly arranged on the inner side of the end plate (64), the air guide cover (67) is fixedly arranged on the inner end of the limiting sleeve (66), the reinforcing ring (68) is fixedly arranged on the inner end of the air guide cover (67), and the L-shaped guide rod (69) slides through the L-shaped shell (32) and is fixedly connected to the limiting sleeve (66).

7. The auxiliary device for rapidly assembling arch ribs according to claim 6, characterized in that: The hinge mechanism (7) comprises a fixing seat (71) and a hinge shaft (72); The fixing seat (71) is fixedly arranged on the top of the middle rib arch section (2), and the hinge shaft (72) is rotatably arranged on the inner side of the fixing seat (71) via a bearing.

8. The auxiliary device for rapidly assembling arch ribs according to claim 7, characterized in that: The invention also includes a method for using the auxiliary device for quickly assembling arch ribs, the method specifically comprising the following steps: S1, the side rib arch segment (1) and the middle rib arch segment (2) are placed on the ground before installation, the hinge mechanism (7) is fixedly installed on the top of the middle rib arch segment (2), the shell assembly (3) is fixedly installed on the top of the side rib arch segment (1), the two side rib arch segments (1) are suspended and fixed using a lifting device, and then the middle rib arch segment (2) is suspended using a lifting device, so that the middle rib arch segment (2) arrives at a preset position between the two side rib arch segments (1); S2, at this time, the hinge mechanism (7) is located between the two guide positioning mechanisms (6), and the drive motor (42) is started. After the drive motor (42) is started, it drives the reciprocating screw (41) to rotate. When the reciprocating screw (41) rotates, it drives the outer sleeve (43) to move leftward. When the outer sleeve (43) moves leftward, it drives the inner sleeve (45) to move leftward through the return spring (44), and drives the locking pin (47) to move leftward through the outer sleeve plate (46). When the inner sleeve (45) moves leftward, it drives the L-shaped connecting arm (52) and the rack (53) to move leftward synchronously through the moving plate (51); S3, when the rack (53) moves to the left, it drives the adjacent gear (62) to rotate, and when the gear (62) rotates, it drives the threaded sleeve (61) to rotate synchronously. Since the limiting sleeve (66) is guided by the adjacent L-shaped guide rod (69), when the threaded sleeve (61) rotates, it drives the end plate (64) to move inwards. When the end plate (64) moves inwards, it drives the air guide cover (67) and the reinforcement ring (68) to move inwards through the limiting sleeve (66); S4, as the air deflector (67) continues to move inward, the end of the hinge shaft (72) contacts the inner wall of the air deflector (67), and subsequently as the air deflector (67) continues to move inward, the air deflector (67) guides the hinge shaft (72), thereby causing the hinge shaft (72) to move toward the inside of the limiting sleeve (66), and when the leftward movement distance of the outer sleeve (43) reaches a first threshold, the hinge shaft (72) enters the inside of the limiting sleeve (66) under the guidance of the air deflector (67), and subsequently as the outer sleeve (43) continues to move left, the hinge shaft (72) continues to move deep into the inside of the limiting sleeve (66); S5, when the distance of the outer sleeve (43) moving to the left reaches the second threshold, the L-shaped connecting arm (52) moves to the leftmost end of the inner side of the limiting slide groove (33), and the reinforcing ring (68) fits the outer surface of the fixed seat (71). At this time, due to the obstruction of the limiting slide groove (33), the movable plate (51) and the rack (53) cannot continue to move to the left. Subsequently, as the outer sleeve (43) continues to move to the left, the return spring (44) is continuously compressed, and the outer plate (46) continues to drive the locking pin (47) to move to the left. S6, when the distance the outer sleeve (43) moves to the left reaches a third threshold, the locking pin (47) enters the inner side of the locking channel (65) and reinforces the end plate (64) through the locking channel (65), and when the distance the outer sleeve (43) moves to the left reaches a fourth threshold, the outer sleeve (43) moves to the leftmost end of the reciprocating thread on the outer side of the reciprocating screw (41), and the drive motor (42) is stopped at this time; S7, gradually lowering the middle rib arch segment (2) by using a lifting device, the middle rib arch segment (2) rotates around the hinge shaft (72) under the restriction of the fixing seat (71), and then completes the assembly with the two side rib arch segments (1), welding the middle rib arch segment (2) and the two side rib arch segments (1) to each other, and then welding the arch feet of the two side rib arch segments (1) to the main longitudinal beam; S8, start the drive motor (42) again. After the drive motor (42) is started, it drives the reciprocating screw (41) to rotate again. When the reciprocating screw (41) rotates, it drives the outer sleeve (43) to move rightward and reset. When the rightward movement distance of the outer sleeve (43) reaches the fifth threshold value, the outer sleeve (43) arrives at the initial position, that is, the rightmost end of the reciprocating thread on the outer side of the reciprocating screw (41). At this time, the drive motor (42) is stopped, and then the hinge mechanism (7) is removed from the top of the middle rib arch section (2), and the shell assembly (3) is removed from the top of the side rib arch section (1).

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