Special beam lifting device for prefabricated track trough beam and use method thereof
By designing a special beam lifting device for prefabricated track groove beams, the telescopic fitting and screw locking mechanism of the main bracket, sub bracket and suspension bracket are solved, and the rigidity of the prefabricated track beam is easily damaged when it rotates horizontally, achieving construction safety Improvement of sex and quality.
Patent Information
- Application Number
- CN201910962666.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-10-11
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the construction of municipal engineering bridges, prefabricated track beams are prone to damage their stiffness when they rotate horizontally, resulting in construction safety hazards and quality impacts, and existing cranes are difficult to effectively carry heavy-duty prefabricated components.
A special beam lifting device for prefabricated track groove beams is designed, including the main bracket, the secondary bracket and the suspension bracket. Through telescopic fitting and screw locking mechanism, it provides reinforcement protection to adapt to prefabricated track beams of different lengths and hole positions to ensure the lifting of the beam. stability and strength during the
Effectively reinforce the horizontal rigidity of prefabricated track beams, avoid damaging their stiffness and strength, ensure the reliability and stability of construction, and are suitable for beam lifting operations of heavy-duty beams.
Smart Images
Figure CN110820563B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a bridge hoisting construction machine, in particular to a special beam lifting device for a prefabricated track groove beam for municipal engineering bridge hoisting and a use method thereof. Background Art
[0002] In the construction of municipal engineering bridges, the hoisting construction of prefabricated components is often involved, which requires the use of corresponding hoisting equipment. Some of the larger or heavier concrete prefabricated components, such as prefabricated track beams, are as light as 20 tons and as heavy as hundreds of tons. The general transport crane is often unable to bear such a heavy load, so gantry-type heavy-duty cranes, such as bridge cranes, are often used. However, in actual construction, if the bridge crane is directly used to suspend the track beam at both ends, because the prefabricated track beam is a U-shaped hollow structure, its horizontal rotation rigidity is not high. When the crane is directly used for suspension, it is often easy to destroy the rigidity of the prefabricated beam, resulting in safety hazards in the construction of the prefabricated beam and affecting the quality of the bridge after construction. For this reason, the prefabricated track beam needs to be reinforced during horizontal rotation to ensure the stability of its construction. Therefore, it is necessary to design a device for reinforcing the prefabricated track beam during suspension to ensure the reliable construction of the prefabricated track beam. Summary of the invention
[0003] In order to overcome the above shortcomings, the purpose of the present invention is to provide a prefabricated track trough beam special lifting device and its use method to the art, so as to solve the technical problem that the rigidity of the prefabricated track beam is easily damaged when the prefabricated track beam is horizontally rotated during the lifting operation. The purpose is achieved through the following technical solutions.
[0004] A special lifting beam device for prefabricated track trough beams, the structural key points of which are that the lifting beam device includes a main bracket, a secondary bracket and a suspension bracket, the main bracket is a straight through tubular shape, and the two ends of the main bracket are provided with the secondary brackets that are telescopically matched, and the symmetrical sides of the secondary bracket are provided with at least one pair of pin holes for passing through the pin shaft along the telescopic straight line direction, and the two ends of the main bracket are provided with paired port reinforcement plates arranged at intervals, and the symmetrical sides of the main bracket are provided with pin positioning holes for passing through the pin shaft between each pair of port reinforcement plates, and the secondary bracket and the main bracket are connected by pin holes and pin positioning holes. The two are aligned, and a pin is connected between them to form a relative fixation; the end of the sub-bracket extending out of the main bracket is the suspension end, and a suspension seat and a crane hanger are fixedly provided above the sub-bracket near the suspension end, and a suspension bracket is provided below the suspension end of the sub-bracket. Both ends of the suspension seat and both ends of the suspension bracket are protruding relative to the two symmetrical sides of the sub-bracket, and the two ends of the suspension seat and the two ends of the suspension bracket are respectively locked and fixed by screws and nuts, and when locked, the suspension seat and the suspension bracket are clamped and fixed to the sub-bracket; waist-shaped adjustment holes for connecting the tension screws are provided at both ends of the suspension bracket. Through the above structure, the telescopic adjustment of the main bracket and the sub-bracket is utilized to adapt to the lifting operation of prefabricated track beams of different lengths, and the suspension bracket is designed as a waist-shaped adjustment hole, which is convenient for connection with prefabricated track beams with different hole positions, and the suspension bracket can also be replaced or maintained as needed to be suitable for the required lifting operation of the prefabricated track beam.
[0005] A pin tube for sleeve-connecting the pin shaft is welded between the pin holes on the symmetrical sides of the sub-bracket that are aligned with each other. This structure can not only improve the overall structural strength of the sub-bracket, but also improve the reliability and stability of positioning between the sub-bracket and the main bracket through the pin shaft.
[0006] The hole ends of the pin hole and the positioning pin hole are welded with a hole reinforcement plate, and the top and bottom edges of the two symmetrical sides of the sub-bracket are provided with a reinforcement edge that is vertically protruded relative to the side, and the height dimension of the reinforcement edge protruding relative to the side of the sub-bracket is consistent with the thickness dimension of the hole reinforcement plate. Through this structure, the strength of the sub-bracket, the pin hole, and the pin positioning hole is improved, while ensuring the tightness of the telescopic fit between the sub-bracket and the main bracket, and preventing the main bracket and the sub-bracket from loosening and shaking due to excessive gap.
[0007] The outer side of the main bracket is provided with a side reinforcing plate perpendicular to the outer side, and a reinforcing tube is inserted and welded between the side reinforcing plates, and the two ends of the reinforcing tube are welded and fixed to the port reinforcing plates at the two ends of the main bracket. Through this structure, the overall rigidity and strength of the main bracket are guaranteed, thereby ensuring the reliability when lifting the beam.
[0008] The suspension bracket includes an intermediate frame and main suspensions at both ends of the intermediate frame. The two ends of the intermediate frame are telescopically matched with the main suspension, and the intermediate frame is provided with inner pin holes at intervals along the telescopic straight line direction. The main suspension is provided with outer pin holes. The main suspension and the telescopic frame are aligned through the inner pin holes and the outer pin holes, and the pins are connected between the two to form a relative fixation; the main suspension is provided with an adjustment sliding hole for passing the screw rod, and the direction in which the screw rod slides relative to the adjustment sliding hole is consistent with the direction in which the main suspension is telescopic relative to the intermediate frame; the upper end of the screw rod is passed through the suspension seat and then the connection nut is locked, and the lower end of the screw rod is passed through the adjustment sliding hole and then the connection nut is locked. Through this structure, the suspension bracket can be telescopically adjusted, so it has stronger applicability.
[0009] The method for using the special lifting beam device for prefabricated track trough beam is as follows: the prefabricated track beam corresponding to the lifting beam device is a trough beam with two ends through, and both ends are provided with connecting holes corresponding to the waist-shaped adjustment holes at the two ends of the suspension bracket. When the lifting beam device is used, the sling of the crane is locked and fixed with the crane hanger on the auxiliary brackets at both ends of the main bracket, and then the lifting beam device is lifted by the crane; after lifting, the telescopic length of the main bracket and the auxiliary bracket is adjusted so that the length of the lifting beam device matches the length of the prefabricated track beam to be lifted, and the waist-shaped adjustment holes at both ends of the suspension bracket are opposite to the connecting holes at both ends of the prefabricated track beam, and the waist-shaped adjustment holes and the connecting holes are locked and fixed by tension screws and locking nuts. After locking and fixing, the crane can be turned on to lift the prefabricated track beam directly to the desired installation position; after lifting is completed, the tensioning bolts and locking nuts are removed, the lifting beam device can be removed, and the lifting operation is completed. Through the above, when the prefabricated track beam is rotated horizontally, the beam lifting device can play a role in reinforcing and protecting the prefabricated track beam, thereby not easily destroying the rigidity and strength of the prefabricated track beam.
[0010] The advantages of the present invention are that the length and width are easy to adjust, and it has good adaptability to prefabricated track beams. When lifting the beam, it can effectively reinforce the rigid strength of the prefabricated track beam when it rotates in the horizontal direction, so it is not easy to destroy the rigidity of the prefabricated track beam, and ensure the reliability and stability of the suspension construction of the prefabricated track beam. It is suitable for use as a beam lifting device for heavy beams such as prefabricated track beams, or for structural improvement of similar devices. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the assembly structure of the present invention.
[0012] Figure 2 It is a schematic diagram of the structure of the auxiliary bracket suspension end of the present invention.
[0013] Figure 3 It is a partially enlarged structural entity diagram of the main support of the present invention.
[0014] Figure 4 It is a schematic diagram of the improved structure of the suspension bracket of the present invention.
[0015] Figure 5 yes Figure 4 Schematic diagram of the connection structure between the suspension bracket and the auxiliary bracket.
[0016] Figure 6 It is a structural schematic diagram of the handle state of the present invention.
[0017] The serial numbers and names in the figure are: 1. Main bracket, 101. Telescopic hole, 102. Port stiffened plate, 103. Pin positioning hole, 104. Side stiffened plate, 105. Reinforced pipe, 2. Auxiliary bracket, 201. Crane hanger, 202. Pin hole, 203. Reinforced edge, 3. Suspension seat, 4. Suspension bracket, 401. Waist-shaped adjustment hole, 402. Main suspension, 4021. Adjustment slide hole, 403. Intermediate frame, 4031. Internal pin hole, 404. Adjustment slide hole, 5. Screw, 6. Nut, 7. Pin, 8. Pin shaft, 9. Tension screw, 10. Locking nut, 11. Prefabricated track beam. DETAILED DESCRIPTION
[0018] The present invention will now be further described with reference to the accompanying drawings.
[0019] like Figure 1-3 As shown, the prefabricated track trough beam special lifting beam device includes a main bracket 1, a sub-bracket 2, a suspension seat 3, and a suspension bracket 4. The main bracket is a straight through tube, and the inner hole is a square telescopic hole 101. Both ends of the main bracket are provided with telescopic sub-brackets. The sub-bracket is a square tube. The top and bottom edges of the symmetrical sides of the sub-bracket are provided with reinforced edges 203 that are vertically protruding relative to the side. The symmetrical sides of the sub-bracket are provided with a row of spaced pin holes 202 along the telescopic straight line direction, and the pin holes aligned on the symmetrical sides of the sub-bracket are welded with a pin tube for sleeve pin shaft 8, and the outer end surface of the pin hole is welded with a hole reinforced plate that is consistent with the pin hole diameter. The height dimension of the above-mentioned reinforced edge relative to the side of the sub-bracket is consistent with the thickness dimension of the above-mentioned hole reinforced plate.
[0020] Both ends of the main bracket 1 are provided with port reinforcement plates 102 arranged in pairs and at intervals. Pin positioning holes 103 for passing through the pin shaft 8 are provided between the paired port reinforcement plates on the symmetrical sides of the main bracket, and hole reinforcement plates with the same diameter as the pin positioning holes are welded on the outer sides of the pin positioning holes. Both symmetrical sides of the main bracket are provided with side reinforcement plates 104 perpendicular to the outer sides, and reinforcement tubes 105 are passed through and welded between the side reinforcement plates, and the two ends of the reinforcement tubes are welded and fixed to the port reinforcement plates at both ends of the main bracket. The secondary bracket and the main bracket are aligned through the pin hole 202 and the pin positioning hole, and the pin shaft is passed through the two to form a relative fixation, and the two ends of the pin shaft are locked and limited by limit locking.
[0021] The end of the sub-bracket 2 extending out of the main bracket 1 is the suspension end. The suspension seat 3 and the crane bracket 201 are welded and fixed above the sub-bracket near the suspension end. The suspension bracket 4 is arranged below the suspension end of the sub-bracket. Both ends of the suspension seat and both ends of the suspension bracket are convex relative to the two symmetrical sides of the sub-bracket, and the two ends of the suspension seat and the two ends of the suspension bracket are respectively locked and fixed by screws 5 and nuts 6. When locked, the suspension seat and the suspension bracket are clamped and fixed to the sub-bracket. Both ends of the suspension bracket are provided with waist-shaped adjustment holes 401 for connecting the tension screws 9.
[0022] like Figure 4 , Figure 5 As shown, the suspension bracket 4 can also be designed as a telescopic adjustable structure, specifically: the suspension bracket includes an intermediate frame 403 and a main suspension 402 located at both ends of the intermediate frame, the two ends of the intermediate frame are telescopically matched with the main suspension, and the intermediate frame is provided with inner pin holes 4031 at intervals along the telescopic straight line direction, the main suspension is provided with an outer pin hole, the main suspension and the telescopic frame are aligned through the inner pin hole and the outer pin hole, and the two are connected by a pin 7 to form a relative fixation, and limit pins are provided at both ends of the pin to form a locking limit. The main suspension is provided with an adjustment slide hole 4021 for passing through the screw 5, and the direction in which the screw slides relative to the adjustment slide hole is consistent with the direction in which the main suspension is telescopic relative to the intermediate frame. The upper end of the screw is connected to the suspension seat and then the connecting nut 6 is locked, and the lower end of the screw is connected to the adjustment slide hole and then the connecting nut is locked.
[0023] The specific method of using the special lifting beam device for the prefabricated track trough beam is as follows: the prefabricated track beam 11 corresponding to the lifting beam device is a trough beam with two ends through, and both ends are provided with connection holes corresponding to the waist-shaped adjustment holes 401 at the two ends of the suspension bracket. When the lifting beam device is used, the lifting rope of the crane is locked and fixed with the crane hanger 201 on the auxiliary bracket 2 at both ends of the main bracket 1; then the lifting beam device is lifted by the crane, and after lifting, the telescopic length of the main bracket and the auxiliary bracket is adjusted so that the length of the lifting beam device matches the length of the prefabricated track beam to be lifted, and the waist-shaped adjustment holes at both ends of the suspension bracket are opposite to the connection holes at both ends of the prefabricated track beam, and the waist-shaped adjustment holes and the connection holes are locked and fixed by the tension screw 9 and the locking nut 10; after locking and fixing, the crane can be turned on to lift the prefabricated track beam directly to the position to be installed; after lifting is completed, the tension screw and the locking nut are removed, and the lifting beam device can be removed to complete a lifting operation.
Claims
1. A special beam lifting device for prefabricated track trough beam, characterized in that The lifting beam device comprises a main bracket (1), a secondary bracket (2) and a suspension bracket (4); the main bracket is in a straight through tubular shape; the secondary brackets are provided at both ends of the main bracket in a telescopic manner; at least one pair of pin holes (202) for passing through a pin shaft (8) are provided on two symmetrical side surfaces of the secondary bracket along the telescopic straight line direction; the two ends of the main bracket are provided with port reinforcement plates (102) arranged in pairs and spaced apart; pin positioning holes (103) for passing through the pin shaft are provided on two symmetrical side surfaces of the main bracket between each pair of port reinforcement plates; the secondary bracket is aligned with the main bracket through the pin holes and the pin positioning holes; A pin is inserted between the two to form a relative fixation; the end of the sub-bracket extending out of the main bracket is the suspension end, and a suspension seat (3) and a crane bracket (201) are fixedly provided above the sub-bracket near the suspension end, and a suspension bracket is provided below the suspension end of the sub-bracket, and both ends of the suspension seat and both ends of the suspension bracket are protruding relative to the two symmetrical sides of the sub-bracket, and the two ends of the suspension seat and the two ends of the suspension bracket are respectively locked and fixed by screws (5) and nuts (6), and when locked, the suspension seat and the suspension bracket are clamped and fixed to the sub-bracket; both ends of the suspension bracket are provided with waist-shaped adjustment holes for connecting the tension screws (9).
2. The special beam lifting device for prefabricated track trough beam according to claim 1 is characterized in that A pin tube for sleeve-connecting the pin shaft (8) is welded between the pin holes (202) on two symmetrical side surfaces of the auxiliary bracket (2) that are aligned with each other.
3. The special beam lifting device for prefabricated track trough beam according to claim 1 is characterized in that Hole reinforcing plates are welded to the ends of the pin hole (202) and the pin positioning hole (103), and the top and bottom edges of the two symmetrical side surfaces of the auxiliary bracket (2) are provided with reinforcing edges (203) that protrude vertically relative to the side surfaces, and the height dimension of the reinforcing edges protruding relative to the side surfaces of the auxiliary bracket is consistent with the thickness dimension of the hole reinforcing plates.
4. The special beam lifting device for prefabricated track trough beam according to claim 1 is characterized in that The outer side surfaces of the main support (1) are all provided with side reinforcing plates (104) perpendicular to the outer side surfaces, and reinforcing tubes (105) are inserted and welded between the side reinforcing plates, and the two ends of the reinforcing tubes are welded and fixed to the port reinforcing plates (102) at the two ends of the main support.
5. The special beam lifting device for prefabricated track trough beam according to claim 1 is characterized in that The suspension bracket (4) comprises an intermediate frame (403) and main suspension frames (402) located at both ends of the intermediate frame, the two ends of the intermediate frame are telescopically matched with the main suspension, and the intermediate frame is provided with inner pin holes (4031) at intervals along the telescopic straight line direction, the main suspension is provided with outer pin holes, the main suspension and the telescopic frame are aligned through the inner pin holes and the outer pin holes, and the two are connected by a pin (7) to form a relative fixation; the main suspension is provided with an adjustment sliding hole (4021) for passing the screw rod (5), and the direction in which the screw rod slides relative to the adjustment sliding hole is consistent with the direction in which the main suspension rod is telescopic relative to the intermediate frame; the upper end of the screw rod is passed through the suspension seat and then locked with a connecting nut (6), and the lower end of the screw rod is passed through the adjustment sliding hole and then locked with a connecting nut.
6. A method for using the special beam lifting device for prefabricated track trough beams as claimed in claim 1, characterized in that The prefabricated track beam (11) corresponding to the lifting beam device is a trough-shaped beam with two ends through, and both ends are provided with connection holes corresponding to the waist-shaped adjustment holes (401) at the two ends of the suspension bracket (4). When the lifting beam device is used, the lifting rope of the crane is locked and fixed to the crane hanger (201) on the auxiliary brackets (2) at the two ends of the main bracket (1), and then the lifting beam device is lifted by the crane; after lifting, the telescopic length of the main bracket and the auxiliary bracket is adjusted so that the length of the lifting beam device matches the length of the prefabricated track beam to be lifted, and the waist-shaped adjustment holes at the two ends of the suspension bracket are aligned with the connection holes at the two ends of the prefabricated track beam, and the waist-shaped adjustment holes and the connection holes are locked and fixed by the tension screw rod (9) and the locking nut (10). After locking and fixing, the crane can be turned on to directly lift the prefabricated track beam to the desired installation position; after lifting is completed, the tension screw rod and the locking nut are removed, and the lifting beam device can be removed to complete the lifting operation.