A spherical joint casting mold for a bridge swivel and a mold splicing method thereof

Abstract

The present invention relates to the field of casting, and specifically to a casting mold for a spherical joint on a bridge swivel and a mold splicing method thereof. The casting mold comprises: a fixed mold, a movable mold, a top cover and a fan-shaped cover plate. A lower concave cavity is formed on the upper portion of the movable mold, and a positioning hole is provided on the lower concave cavity. A transverse jacking mechanism is provided at each positioning hole, and the transverse jacking mechanism includes a transverse push rod. A knocking notch is provided on the movable mold, and a vibration mechanism is provided at the knocking notch. The vibration mechanism includes a T-shaped frame, a rotating shaft, a one-way power device, a transmission device, and an impactor. The impactor is connected to the rotating shaft by transmission, and the impactor includes a knocking rod. A plurality of trigger rods are provided on the fan-shaped cover plate, and each trigger rod is connected to a corresponding transverse push rod by transmission. The device can directly cast the connecting hole on the swivel ball joint, saving the workload of workers, reducing the risk of workers' work, and improving the accuracy of the equipment.

Description

Technical Field

[0001] The invention relates to the field of casting, and in particular to a spherical joint casting mould for a bridge swivel and a mould splicing method thereof. Background Art

[0002] With the development of my country's highway transportation industry, an increasing number of new bridges are crossing existing railways or highways. To minimize the impact of bridge construction on traffic operations, bridge rotation construction technology has gained widespread application. Widely used across busy railways and highways, deep and turbulent canyons, and busy waterways, this construction method provides reliable assurance for the safety, quality, and progress of bridge construction under these challenging conditions. Rotational construction technology, due to its economical, convenient, and reliable features, is increasingly favored by bridge builders.

[0003] As the core component of the bridge rotation construction, the swivel ball joint is the key to ensuring the safety of the rotation construction and the rotation accuracy. Therefore, the manufacturing and production links of the swivel ball joint are extremely important. The existing swivel ball joint production process mostly adopts integral casting. After the ball joint is cast as a whole, the staff drills the required connection holes into the reinforcing ring plate and reinforcing rib plate of the ball joint. However, since the ball joint is generally large, the workers need to drill many holes manually, and the drilling position is prone to errors, and the workload of the workers is increased. Obviously, this is a waste of labor. If, when casting the ball joint, the holes that originally required workers to drill manually one by one can be directly cast through a new type of mold, there is no need for manual drilling. This can not only improve the accuracy of the hole position, but also reduce the workload of the workers. Summary of the Invention

[0004] Based on this, it is necessary to provide a spherical joint casting mold for a bridge swivel and a mold splicing method thereof to address the existing technical problems.

[0005] In order to solve the existing technical problems, the technical solution adopted by the present invention is: a casting mold for a spherical joint on a bridge swivel, comprising:

[0006] The fixed mold is arranged in a horizontal state, and the fixed mold is disassembled and assembled in two or more sections;

[0007] The movable mold is arranged above the fixed mold. The movable mold is disassembled and assembled in two or more sections. A pouring gate is provided in the middle of the movable mold. A lower concave cavity is formed on the upper part of each section of the movable mold. The lower concave cavity is fan-shaped. The lower concave cavity is provided with arc-shaped partitions at more than two ends. The lower concave cavity and the arc-shaped partition correspond to the reinforcing ring plate and the reinforcing rib plate of the swivel ball joint. A fan-shaped groove is provided at the edge of the lower concave cavity. Positioning holes are provided on the side walls of the arc-shaped partition and one side wall of the lower concave cavity. Each of the positioning holes is provided with a horizontal ejection mechanism, and the horizontal ejection mechanism includes a horizontal ejector rod for extending into the positioning hole.

[0008] The movable mold is provided with a plurality of evenly spaced knocking notches on the edge thereof, and a vibration mechanism is correspondingly provided beside each knocking notch, and the vibration mechanism includes two T-shaped frames fixedly provided on the movable mold in a symmetrical state, a rotating shaft rotatably provided on the two T-shaped frames, a one-way power device provided on the rotating shaft and connected to the rotating shaft, a transmission device provided beside the one-way power device and connected to the rotating shaft, a resetter provided below the transmission device, and a striker provided between the two T-shaped frames, the striker being connected to the rotating shaft, and the striker including a U-shaped bracket fixedly provided between the two T-shaped frames and a striking rod slidably provided on the U-shaped bracket;

[0009] A plurality of fan-shaped cover plates, the number of which matches the number of the lower concave cavities, are arranged above the movable mold. The fan-shaped cover plates are correspondingly arranged in the fan-shaped sink grooves. The fan-shaped cover plates are provided with a plurality of trigger rods, each of which passes through the fan-shaped cover plate and corresponds to a horizontal extension mechanism. Each trigger rod is transmission-connected to the power input end of each horizontal extension mechanism.

[0010] The top cover is horizontally arranged above the fan-shaped cover plate. The top cover includes a middle support plate for connection and a plurality of fan-shaped assembly plates distributed in a ring along the center of the middle support plate. The middle support plate is provided with an avoidance hole, which is used to avoid the pouring gate. The top cover is connected to the transmission device and the trigger rod.

[0011] The cam is secured to the bottom of the slide and is adapted to engage the slide block, wherein the cam is secured to the bottom of the slide and is adapted to engage the slide block.

[0012] Furthermore, a cam is fixedly provided on the rotating shaft, the cam is elliptical, and a plurality of interference protrusions are evenly distributed on the side wall of the cam, and each of the interference protrusions interferes with the impact rod.

[0013] Furthermore, each of the impactors also includes a sliding tube fixedly arranged on the U-shaped bracket, a fixing ring coaxially fixedly arranged on the impact rod and two reset springs symmetrically arranged on the fixing ring. One end of each reset spring is connected to the fixing ring and the other end is connected to the U-shaped bracket. The impact rod slides along the axis of the sliding tube. Two symmetrical limit strips are symmetrically arranged on the impact rod along its axis. Two symmetrical limit grooves are symmetrically arranged on the inner wall of the sliding tube along its axis. Each limit strip corresponds to a limit groove.

[0014] Furthermore, each of the transmission devices includes a connecting plate fixedly arranged between two T-shaped plates, a wedge-shaped slider slidably arranged on the connecting plate, and a ruler bar fixedly arranged on the wedge-shaped slider. A wedge-shaped groove is provided on the connecting plate, and the wedge-shaped groove corresponds to the wedge slider. The ruler bar is connected to the resetter by transmission. The one-way power device includes a transmission gear coaxially arranged on the rotating shaft, and the transmission gear is meshed with the ruler bar.

[0015] Furthermore, each of the resetters includes interference ears symmetrically fixed on both sides of the end of the ruler bar, two extension support rods symmetrically fixed at the bottom of the connecting plate, a multi-stage telescopic rod arranged on each interference ear and a third pressure spring coaxially movably arranged in each multi-stage telescopic rod, one end of each multi-stage telescopic rod is connected to the interference ear and the other end is abutted against the bottom of the extension support rod, and one end of each third pressure spring is abutted against the interference ear and the other end is abutted against the extension support rod.

[0016] Furthermore, each of the one-way power devices 33 also includes a ball bearing coaxially arranged on the rotating shaft and a transmission ring coaxially fixedly arranged on the rotating shaft, the transmission gear is coaxially sleeved on the ball bearing, and a ring groove is provided on one side of the transmission gear, and a circle of ratchet teeth is provided in the ring groove. A plurality of mounting grooves are provided in a ring along the axis of the transmission ring edge, and a mounting shaft is provided in each mounting groove. A pawl is rotatably provided on each mounting shaft, and a resistance spring is provided on the side wall of the pawl. One end of the resistance spring is connected to the pawl and the other end is connected to the inner wall of the mounting groove. Each pawl is engaged with a ratchet.

[0017] Furthermore, the fixed mold is provided with a first lifting ear, the movable mold is provided with a second lifting ear, the top cover is provided with a third lifting ear, and a soft abutment plate is fixedly provided on the top end of each ruler bar.

[0018] A method for splicing a spherical hinge casting mold on a bridge swivel includes the following steps:

[0019] S1: Splicing fixed mold;

[0020] S2: splicing moving mold;

[0021] S3: Hoist the movable mold onto the fixed mold for overall assembly;

[0022] S4: Install the fan-shaped cover plate in the fan-shaped sink;

[0023] S5: Assemble the top cover and hoist it above the movable mold so that the pouring port on the movable mold passes through the avoidance hole;

[0024] S6: Workers pour from the pouring gate;

[0025] S7: After pouring is completed, the top cover is removed and demoulding is performed.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] Firstly, this device can directly cast the connection holes that originally had to be drilled manually by workers, thereby improving production efficiency and reducing workers' workload;

[0028] Second: The vibration mechanism of this device can generate vibration during demoulding, which is convenient for demoulding;

[0029] Thirdly, the fixed mold and the movable mold of the device are both segmented assembly structures, which are convenient for workers to construct and assemble and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure of the embodiment Figure 1 ;

[0031] Figure 2 1 is a schematic diagram of the three-dimensional structure of the fixed mold and the movable mold of the embodiment;

[0032] Figure 3 1 is a schematic diagram of the three-dimensional structure of the fixed mold and the movable mold during demoulding of the embodiment;

[0033] Figure 4 2. It is a schematic diagram of the three-dimensional structure of the fan-shaped cover plate of the embodiment;

[0034] Figure 5 yes Figure 4 A schematic diagram of the structure at center A;

[0035] Figure 6 is a top view of an embodiment;

[0036] Figure 7 yes Figure 6 Cross-sectional view along the middle edge at DD;

[0037] Figure 8 is a schematic diagram of the three-dimensional structure of the vibration mechanism of the embodiment;

[0038] Figure 9 This is a schematic diagram of the exploded three-dimensional structure of the ruler bar of the embodiment;

[0039] Figure 10 This is a schematic diagram of the exploded three-dimensional structure of the impact rod of the embodiment;

[0040] Figure 11 This is a schematic diagram of the exploded three-dimensional structure of the transmission gear of the embodiment;

[0041] Figure 12 This is a side view of the transmission gear structure of the embodiment;

[0042] Figure 13 It is a schematic diagram of the three-dimensional structure of the casting body of the embodiment.

[0043] 1. The numbers in the figure are: 1. fixed mold; 2. first lifting ear; 3. movable mold; 4. pouring gate; 5. lower concave cavity; 6. positioning hole; 7. horizontal extension mechanism; 8. horizontal ejector; 9. movable seat; 10. inclined slide; 11. resistance block; 12. slide bar; 13. limiting ring; 14. first pressure spring; 15. arc partition; 16. fan-shaped sinking groove; 17. second lifting ear; 18. knocking notch; 19. vibration mechanism; 20. T-shaped frame; 21. connecting plate; 22. wedge-shaped slide; 23. transmission; 24. wedge-shaped slider; 25. ruler; 26. resistance ear; 27. resistance soft board; 28. resetter; 29. ​​extension rod; 30. multi-stage telescopic rod; 31. Three pressure springs; 32. Rotating shaft; 33. One-way power device; 34. Transmission gear; 35. Ring groove; 36. Ratchet; 37. Ball bearing; 38. Transmission ring; 39. Mounting groove; 40. Mounting shaft; 41. Ratchet; 42. Interference spring; 43. Cam; 44. Interference protrusion; 45. Impactor; 46. Impact rod; 47. Limiting bar; 48. Fixing ring; 49. Reset spring; 50. U-shaped bracket; 51. Sliding tube; 52. Limiting slide groove; 53. Fan-shaped cover plate; 54. Trigger rod; 55. Second pressure spring; 56. Top cover; 57. Third lifting ear; 58. Middle support plate; 59. Avoidance hole; 60. Fan-shaped assembly plate; 61. Casting body. DETAILED DESCRIPTION

[0044] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] refer to Figures 1 to 13 ;

[0046] A bridge swivel spherical joint casting mold, comprising:

[0047] The fixed mold 1 is arranged in a horizontal state, and the fixed mold 1 is disassembled and assembled in two or more sections;

[0048] The movable mold 3 is arranged above the fixed mold 1. The movable mold 3 is disassembled and assembled in two or more sections. A pouring gate 4 is provided in the middle of the movable mold 3. A lower concave cavity 5 is formed on the upper part of each section of the movable mold 3. The lower concave cavity 5 is fan-shaped. An arc-shaped partition 15 is provided at more than two ends of the lower concave cavity 5. The lower concave cavity 5 and the arc-shaped partition 15 correspond to the reinforcing ring plate and the reinforcing rib plate of the swivel ball joint. A fan-shaped sink groove 16 is provided at the edge of the lower concave cavity 5. Positioning holes 6 are provided on the side walls of the arc-shaped partition 15 and one side wall of the lower concave cavity 5. Each of the positioning holes 6 is provided with a horizontal ejection mechanism 7. The horizontal ejection mechanism 7 includes a horizontal ejector rod 8 for extending into the positioning hole 6.

[0049] The movable mold 3 is provided with a plurality of evenly spaced knocking notches 18 on the edge thereof, and a vibration mechanism 19 is correspondingly provided next to each knocking notch 18, and the vibration mechanism 19 includes two T-shaped frames 20 fixedly provided on the movable mold 3 in a symmetrical state, a rotating shaft 32 rotatably provided on the two T-shaped frames 20, a one-way power device 33 provided on the rotating shaft 32 and connected to the rotating shaft 32 in transmission, a transmission device 23 provided next to the one-way power device 33 and connected to the rotating shaft 32 in transmission, a resetter 28 provided below the transmission device 23 and a striker 45 provided between the two T-shaped frames 20, the striker 45 being connected to the rotating shaft 32 in transmission, and the striker 45 including a U-shaped bracket 50 fixedly provided between the two T-shaped frames 20 and a striking rod 46 slidably provided on the U-shaped bracket 50;

[0050] A number of fan-shaped cover plates 53, the same number as the lower concave cavity 5, are arranged above the movable mold 3. The fan-shaped cover plates 53 are correspondingly arranged in the fan-shaped sink groove 16. The fan-shaped cover plates 53 are provided with a number of trigger rods 54. Each trigger rod 54 passes through the fan-shaped cover plate 53 and corresponds to a horizontal extension mechanism 7. Each trigger rod 54 is transmission-connected to the power input end of each horizontal extension mechanism 7.

[0051] The top cover 56 is horizontally arranged above the fan-shaped cover plate 53. The top cover 56 includes a middle support plate 58 for connection and a plurality of fan-shaped assembly plates 60 distributed in a ring along the center of the middle support plate 58. The middle support plate 58 is provided with an avoidance hole 59, and the avoidance hole 59 is used to avoid the pouring gate 4. The top cover 56 is transmission-connected to the transmission device 23 and the trigger rod 54.

[0052] like Figure 13As shown, the figure shows the casting body 61. When the device is in operation, the staff first assembles the fixed mold 1, then the movable mold 3, and then hoists the movable mold 3 onto the fixed mold 1. After the fixed mold 1 and movable mold 3 are assembled, the fan-shaped cover plate 53 is installed in the fan-shaped sink 16. At this time, each trigger rod 54 corresponds to a transverse extension mechanism 7. After that, all the fan-shaped assembly plates 60 are fixed to the central support plate 58 to form the top cover 56. The top cover 56 is then hoisted above the movable mold 3. The pouring port 4 on the movable mold 3 passes through the avoidance hole 59. During the process of pressing the top cover 56 onto the movable mold 3, the top cover 56 pushes the trigger rod 54 downward. The downward movement of the trigger rod 54 drives the corresponding transverse extension mechanism 7, thereby pushing all the transverse ejector rods 8 deeper into the positioning hole 6. The actuator 23 and the resetter 28 are also driven by the top cover 56. Due to the provision of the one-way power device 33, the actuator 23 does not drive the impactor 45 at this time. Afterwards, the staff will start pouring from the pouring port 4. When the pouring is completed, the staff will first remove the top cover 56, and then the trigger rod 54 will be reset, the horizontal push mechanism 7 will be reset, and at this time the resetter 28 will be started, driving the transmission 23 to run, the transmission 23 will drive the one-way power device 33 to run, the one-way power device 33 will drive the rotating shaft 32 to rotate, and then the rotating shaft 32 will drive the impactor 45 to run, causing the impact rod 46 to vibrate and knock the side wall of the movable mold 3, so that the entire device will vibrate, which is convenient for demoulding, so that when the horizontal push mechanism 7 drives the horizontal push rod 8 to reset, the horizontal push rod 8 can be easily pulled out from the positioning hole 6, and the vibration also facilitates the demoulding of the movable mold 3. At this point, the casting of the swivel ball joint is completed, and the use of this equipment can directly cast the connecting holes on the swivel ball joint, which greatly saves the workload of the workers. Since the equipment directly casts the connecting holes, there is no need for the workers to manually perform the drilling work later, which makes the position of the connecting holes more accurate.

[0053] In order to show the detailed structure of the lateral extension mechanism 7, the following features are specifically provided:

[0054] Each of the lateral extension mechanisms 7 further includes a movable seat 9 movably arranged at the bottom of the lower concave cavity 5, a resisting block 11 fixedly arranged on both side walls of the movable seat 9, a slide rod 12 slidingly arranged on each resisting block 11, a first pressure spring 14 coaxially sleeved on each slide rod 12 and a limiting ring 13 coaxially fixedly arranged at one end of each slide rod 12, an inclined slide groove 10 is provided on the movable seat 9, the inclined slide groove 10 corresponds to a trigger rod 54, and each of the slide rods 12 is in contact with the movable mold 3 The lateral push rod 8 is fixedly connected to the side wall of the movable seat 9, and a first pressure spring 14 is coaxially sleeved on each of the slide rods 12. One end of each of the first pressure springs 14 is abutted against the bottom end of the slide rod 12 and the other end is abutted against the abutment block 11. A second pressure spring 55 is coaxially sleeved on each of the trigger rods 54. One end of each of the second pressure springs 55 is abutted against the fan-shaped cover plate 53 and the other end is abutted against the top of the trigger rod 54. The inclined slide 10 is the power input end of the lateral extension mechanism 7.

[0055] During operation of the device, when the top cover 56 presses against the trigger rod 54, the trigger rod 54 extends downward, the second pressure spring 55 is compressed, the trigger rod 54 contacts the inclined slot 10, and the abutment block 11 moves along the two slide bars 12, causing the movable seat 9 to move along the axis of the slide bars 12. The first pressure spring 14 is compressed, thereby inserting the transverse push rod 8 into the positioning hole 6. When demolding, the top cover 56 is removed, the trigger rod 54 is reset due to the release of pressure from the second pressure spring 55, and the movable seat 9, without the interference of the trigger rod 54, releases pressure from the first pressure spring 14, causing the movable seat 9 to reset, thereby pulling the transverse push rod 8 out of the positioning hole 6.

[0056] In order to ensure that the rotating shaft 32 can drive the striking rod 46 to strike the movable mold 3 when the device is running, the specific configuration has the following features:

[0057] A cam 43 is fixedly mounted on the rotating shaft 32 . The cam 43 is elliptical in shape. A plurality of abutting protrusions 44 are evenly distributed on the sidewall of the cam 43 . Each abutting protrusion 44 abuts against a striking rod 46 .

[0058] When the device is running, the one-way power device 33 drives the rotating shaft 32 to rotate, and the rotating shaft 32 drives the cam 43 to rotate. The cam 43 abuts against the impact rod 46, causing the impact rod 46 to reciprocate and extend as the cam 43 rotates, thereby knocking the movable mold 3 to create vibration, and the abutment protrusion 44 provided on the cam 43 makes it convenient for the impact rod 46 to have a vibration effect when it hits the movable mold 3 when the cam 43 contacts the impact rod 46, thereby enhancing the impact effect.

[0059] In order to ensure that the impact rod 46 can cooperate with the cam 43 to perform reciprocating impact when the device is running, the specific configuration has the following features:

[0060] Each of the impactors 45 also includes a sliding tube 51 fixed on a U-shaped bracket 50, a fixing ring 48 coaxially fixed on the impact rod 46, and two reset springs 49 symmetrically arranged on the fixing ring 48. One end of each reset spring 49 is connected to the fixing ring 48 and the other end is connected to the U-shaped bracket 50. The impact rod 46 slides along the axis of the sliding tube 51. Two symmetrical limiting strips 47 are symmetrically arranged on the impact rod 46 along its axis. Two symmetrical limiting grooves 52 are symmetrically arranged on the inner wall of the sliding tube 51 along its axis. Each limiting strip 47 corresponds to a limiting groove 52.

[0061] When the device is running, when the cam 43 moves against the impact rod 46, when the long axis of the cam 43 hits the impact rod 46, the impact rod 46 slides along the axis of the sliding tube 51 and hits the movable mold 3. At this time, the reset spring 49 is stretched. As the cam 43 continues to rotate, the cam 43 rotates to the short axis. At this time, the reset spring 49 resets and pulls the impact rod 46 to reset, so that the impact rod 46 is always in conflict with the cam 43.

[0062] In order to show the detailed structure of the transmission 23, the following features are specifically provided:

[0063] Each of the transmission devices 23 includes a connecting plate 21 fixedly arranged between two T-shaped plates, a wedge-shaped slider 24 slidably arranged on the connecting plate 21, and a ruler bar 25 fixedly arranged on the wedge-shaped slider 24. A wedge-shaped groove 22 is provided on the connecting plate 21, and the wedge-shaped groove 22 corresponds to the wedge-shaped slider 24. The ruler bar 25 is connected to the resetter 28 for transmission. The one-way power device 33 includes a transmission gear 34 coaxially arranged on the rotating shaft 32, and the transmission gear 34 is engaged with the ruler bar 25.

[0064] When the device is running, the top cover 56 presses down to resist the ruler bar 25, and the ruler bar 25 and the wedge-shaped slider 24 slide downward along the wedge-shaped slide groove 22. When the ruler bar 25 moves downward, the resetter 28 is driven to run, and the transmission gear 34 rotates. The transmission gear 34 is in idle rotation at this time and cannot drive the rotating shaft 32 to rotate. When the top cover 56 is removed, the resetter 28 drives the ruler bar 25 to move upward. At this time, the transmission gear 34 is driven by the ruler bar 25 to reverse, so that the transmission gear 34 reverses and drives the one-way power device 33 to run. The one-way power device 33 drives the rotating shaft 32 to rotate, and the rotating shaft 32 drives the cam 43 to rotate, so that the impact rod 46 impacts the movable mold 3.

[0065] In order to show the detailed structure of the resetter 28, the following features are specifically provided:

[0066] Each of the resetters 28 includes a contact ear 26 symmetrically fixed on both sides of the end of the ruler bar 25, two extension rods 29 symmetrically fixed at the bottom of the connecting plate 21, a multi-stage telescopic rod 30 arranged on each contact ear 26, and a third pressure spring 31 coaxially movably arranged in each multi-stage telescopic rod 30. One end of each multi-stage telescopic rod 30 is connected to the contact ear 26 and the other end is against the bottom of the extension rod 29. One end of each third pressure spring 31 is against the contact ear 26 and the other end is against the extension rod 29.

[0067] When the ruler bar 25 moves downward, the abutment ear 26 presses the third pressure spring 31 downward, causing the third pressure spring 31 to contract and the multi-stage telescopic rod 30 to contract accordingly. When the top cover 56 is removed, the third pressure spring 31 releases pressure and resets, pushing the ruler bar 25 upward and resetting the multi-stage telescopic rod 30 at the same time.

[0068] In order to show the detailed structure of the one-way power device 33, the following features are specifically provided;

[0069] Each of the one-way power devices 33 also includes a ball bearing 37 coaxially arranged on the rotating shaft 32 and a transmission ring 38 coaxially fixedly arranged on the rotating shaft 32. The transmission gear 34 is coaxially sleeved on the ball bearing 37. A ring groove 35 is provided on one side of the transmission gear 34. A circle of ratchet teeth 36 is provided in the ring groove 35. A plurality of mounting grooves 39 are annularly arranged along the axis of the edge of the transmission ring 38. A mounting shaft 40 is provided in each mounting groove 39. A pawl 41 is rotatably provided on each of the mounting shafts 40. A resistance spring 42 is provided on the side wall of the pawl 41. One end of the resistance spring 42 is connected to the pawl 41 and the other end is connected to the inner wall of the mounting groove 39. Each of the pawls 41 is meshed with the ratchet teeth 36.

[0070] When the device is running, when the ruler bar 25 moves downward, the transmission gear 34 is driven to rotate. At this time, the ratchet 36 rotates with the transmission gear 34, and the pawl 41 is resisted by the ratchet 36 and rotates around the mounting shaft 40. Under the action of the resisting spring 42, the pawl 41 is always in contact with the ratchet 36. At this time, because of the ball bearing 37, the rotation of the transmission gear 34 cannot be transmitted to the rotating shaft 32. When the ruler bar 25 moves upward, the transmission gear 34 is driven to reverse. At this time, the ratchet 36 reverses and clamps the pawl 41, thereby driving the transmission ring 38 to rotate, and the transmission ring 38 drives the rotating shaft 32 to rotate.

[0071] In order to ensure that the equipment can operate stably when the device is running and to facilitate the construction of workers, the specific settings have the following features:

[0072] The fixed mold 1 is provided with a first lifting ear 2 , the movable mold 3 is provided with a second lifting ear 17 , the top cover 56 is provided with a third lifting ear 57 , and a top end of each ruler bar 25 is fixedly provided with a resisting soft board 27 .

[0073] When the device is running, the setting of the first lifting ear 2, the second lifting ear 17 and the third lifting ear 57 can facilitate the staff to better operate when assembling the equipment, and the resistance soft board 27 on the ruler bar 25 can prevent damage to the ruler bar 25 when placing the top cover 56.

[0074] A method for splicing a spherical hinge casting mold on a bridge swivel includes the following steps:

[0075] S1: Splicing fixed mold 1;

[0076] S2: Splicing the moving mold 3;

[0077] S3: Hoist the movable mold 3 onto the fixed mold 1 for overall assembly;

[0078] S4: Install the fan-shaped cover plate 53 in the fan-shaped sink 16;

[0079] S5: Assemble the top cover 56 and hoist it above the movable mold 3 so that the pouring port 4 on the movable mold 3 passes through the avoidance hole 59;

[0080] S6: The staff pours from the pouring port 4;

[0081] S7: After pouring is completed, the top cover 56 is removed and demoulding is performed.

[0082] Working principle: When the device is running, the staff will first assemble the fixed mold 1, and then assemble the movable mold 3, and then hoist the movable mold 3 onto the fixed mold 1. After the fixed mold 1 and the movable mold 3 are assembled, the fan-shaped cover plate 53 is installed in the fan-shaped sink 16. At this time, each trigger rod 54 corresponds to an inclined slide 10. Afterwards, all the fan-shaped assembly plates 60 are fixed on the middle support plate 58 to form a top cover 56, and then the top cover 56 is hoisted above the movable mold 3. The pouring port 4 on the movable mold 3 passes through the avoidance hole 59. In the process of pressing the top cover 56 onto the movable mold 3, the top cover 56 pushes the trigger rod 54 downward, and the trigger rod 54 extends downward. The second pressure spring 55 is compressed, and the trigger rod 54 pushes against the inclined slide 10. The resistance block 11 moves along the two slide bars 12, causing the movable seat 9 to move along the axis of the slide bar 12. The first pressure spring 14 is compressed, thereby inserting the transverse push rod 8 into the positioning hole 6. At the same time, the top cover 56 presses down to contact the ruler bar 25, and the ruler bar 25 and the wedge-shaped slider 24 slide downward along the wedge-shaped slide groove 22 together. The contact ear 26 presses the third pressure spring 31 to move downward, causing the third pressure spring 31 to be forced to contract, and the multi-stage telescopic rod 30 to contract accordingly. The transmission gear 34 is also driven to rotate by the ruler bar 25. Due to the ball bearing 37, the rotation of the transmission gear 34 cannot be transmitted to the rotating shaft 32 at this time. The ratchet 36 rotates with the transmission gear 34, and the pawl 41 is contacted by the ratchet 36 and rotates around the mounting shaft 40. Under the action of the contact spring 42, the pawl 41 is always in contact with the ratchet 36.

[0083] Afterwards, the staff starts pouring from the pouring port 4. When the pouring is completed, the staff first removes the top cover 56. The trigger rod 54 is reset due to the pressure released by the second pressure spring 55. The movable seat 9 loses the resistance of the trigger rod 54, and the first pressure spring 14 releases the pressure, causing the movable seat 9 to reset, and then the transverse push rod 8 is pulled out of the positioning hole 6. The third pressure spring 31 releases the pressure and resets, pushing the ruler bar 25 to move upward, and at the same time resetting the multi-stage telescopic rod 30.

[0084] When the ruler bar 25 moves upward, the transmission gear 34 is driven to reverse. At this time, the ratchet 36 reverses and clamps the pawl 41, thereby driving the transmission ring 38 to rotate, and the transmission ring 38 drives the rotating shaft 32 to rotate. The one-way power device 33 drives the rotating shaft 32 to rotate, and the rotating shaft 32 drives the cam 43 to rotate. The cam 43 resists the impact rod 46, causing the impact rod 46 to reciprocate and extend as the cam 43 rotates, thereby knocking the movable mold 3 to form a vibration, and the impact protrusion 44 provided on the cam 43 makes it convenient for the impact rod 46 to have a vibration effect when hitting the movable mold 3 when the cam 43 contacts the impact rod 46, thereby enhancing the impact effect. When the cam 43 moves against the impact rod 46, when the long axis of the cam 43 hits the impact rod 46, the impact rod 46 slides along the axis of the sliding tube 51 and hits the movable mold 3. At this time, the reset spring 49 is stretched. As the cam 43 continues to rotate, the cam 43 rotates to the short axis. At this time, the reset spring 49 resets and pulls the impact rod 46 back to its original position, so that the impact rod 46 is always in conflict with the cam 43. At this point, the swivel ball joint casting is completed, and the use of this equipment can directly cast the connection holes on the swivel ball joint, which greatly saves the workload of workers. Since the equipment directly casts the connection holes, there is no need for workers to manually punch them separately later, making the position of the connection holes more accurate.

[0085] The above embodiments merely represent one or several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A casting mold for a spherical joint on a bridge swivel, characterized in that: include: The fixed mold (1) is arranged in a horizontal state, and the fixed mold (1) is disassembled and assembled in two or more sections; A movable mold (3) is arranged above the fixed mold (1), and the movable mold (3) is disassembled and assembled in sections of more than two sections. A pouring port (4) is provided in the middle of the movable mold (3), and a lower concave cavity (5) is formed on the upper part of each section of the movable mold (3). The lower concave cavity (5) is fan-shaped, and arc-shaped partitions (15) are provided at more than two ends in the lower concave cavity (5). The lower concave cavity (5) and the arc-shaped partition (15) correspond to the reinforcing ring plate and the reinforcing rib plate of the swivel ball joint. A fan-shaped sink groove (16) is provided at the edge of the lower concave cavity (5), and positioning holes (6) are provided on the side walls of the arc-shaped partition (15) and one side wall of the lower concave cavity (5). Each positioning hole (6) is provided with a corresponding lateral extension mechanism (7), and the lateral extension mechanism (7) includes a lateral ejector rod (8) for extending into the positioning hole (6); The movable mold (3) is provided with a plurality of knocking notches (18) evenly spaced at an edge thereof, and a vibration mechanism (19) is correspondingly provided on the side of each knocking notch (18), the vibration mechanism (19) comprising two T-shaped frames (20) fixedly provided on the movable mold (3) in a symmetrical state, a rotating shaft (32) rotatably provided on the two T-shaped frames (20), a one-way power device (33) provided on the rotating shaft (32) and connected to the rotating shaft (32), a transmission device (23) provided on the side of the one-way power device (33) and connected to the rotating shaft (32), a resetter (28) provided below the transmission device (23), and a striker (45) provided between the two T-shaped frames (20), the striker (45) being connected to the rotating shaft (32), and the striker (45) comprising a U-shaped bracket fixedly provided between the two T-shaped frames (20) and a striking rod (46) slidably provided on the U-shaped bracket; A plurality of fan-shaped cover plates (53) whose number is the same as that of the lower concave cavity (5) are arranged above the movable mold (3), the fan-shaped cover plates (53) being correspondingly arranged in the fan-shaped sink groove (16), and a plurality of trigger rods (54) being arranged on the fan-shaped cover plates (53), each of the trigger rods (54) passing through the fan-shaped cover plates (53) and corresponding to a transverse extension mechanism (7), and each of the trigger rods (54) being transmission-connected to a power input end of each transverse extension mechanism (7); A top cover (56) is horizontally arranged above the fan-shaped cover plate (53), the top cover (56) including a middle support plate (58) for connection and a plurality of fan-shaped assembly plates (60) distributed in an annular manner along the center of the middle support plate (58), the middle support plate (58) is provided with an avoidance hole (59), the avoidance hole (59) is used to avoid the pouring port (4), and the top cover (56) is transmission-connected to the transmission device (23) and the trigger rod (54); Each of the lateral extension mechanisms (7) further comprises a movable seat (9) movably arranged at the bottom of the lower concave cavity (5), a resisting block (11) fixedly arranged on both side walls of the movable seat (9), a sliding rod (12) slidingly arranged on each resisting block (11), a first pressure spring (14) coaxially sleeved on each sliding rod (12) and a limiting ring (13) coaxially fixedly arranged at one end of each sliding rod (12), an inclined sliding groove (10) is provided on the movable seat (9), the inclined sliding groove (10) corresponds to a trigger rod (54), and each of the sliding rods (12) is in contact with the movable mold. (3) is fixedly connected, the transverse push rod (8) is fixedly connected to the side wall of the movable seat (9), and a first pressure spring (14) is coaxially sleeved on each of the slide rods (12), one end of each of the first pressure springs (14) is against the bottom end of the slide rod (12) and the other end is against the contact block (11), and a second pressure spring (55) is coaxially sleeved on each of the trigger rods (54), one end of each of the second pressure springs (55) is against the fan-shaped cover plate (53) and the other end is against the top of the trigger rod (54), and the inclined slide groove (10) is the power input end of the transverse push extension mechanism (7).

2. The casting mold for the spherical joint of a bridge swivel according to claim 1, characterized in that: A cam (43) is fixedly provided on the rotating shaft (32), the cam (43) is elliptical, and a plurality of abutting protrusions (44) are evenly distributed on the side wall of the cam (43), each abutting protrusion (44) abutting against the impact rod (46).

3. The casting mold for the spherical joint of a bridge swivel according to claim 2, characterized in that: Each of the impactors (45) further comprises a sliding tube (51) fixedly arranged on a U-shaped bracket (50), a fixing ring (48) coaxially fixedly arranged on the impact rod (46), and two reset springs (49) symmetrically arranged on the fixing ring (48), one end of each reset spring (49) is connected to the fixing ring (48) and the other end is connected to the U-shaped bracket (50), the impact rod (46) slides along the axis of the sliding tube (51), two symmetrical limiting strips (47) are symmetrically arranged on the impact rod (46) along its axis, and two symmetrical limiting grooves (52) are symmetrically arranged on the inner wall of the sliding tube (51) along its axis, and each of the limiting strips (47) corresponds to a limiting groove (52).

4. The casting mold for the spherical joint of a bridge swivel according to claim 3 is characterized in that: Each of the transmission devices (23) includes a connecting plate (21) fixedly arranged between two T-shaped plates, a wedge-shaped slider (24) slidably arranged on the connecting plate (21), and a ruler bar (25) fixedly arranged on the wedge-shaped slider (24). A wedge-shaped slot (22) is provided on the connecting plate (21), and the wedge-shaped slot (22) corresponds to the wedge-shaped slider (24). The ruler bar (25) is connected to the resetter (28) by transmission. The one-way power device (33) includes a transmission gear (34) coaxially arranged on the rotating shaft (32), and the transmission gear (34) is meshed with the ruler bar (25).

5. The casting mold for the spherical joint of a bridge swivel according to claim 4, characterized in that: Each of the resetters (28) includes abutment ears (26) symmetrically fixedly arranged on both sides of the end of the ruler bar (25), two extension rods (29) symmetrically fixedly arranged at the bottom of the connecting plate (21), a multi-stage telescopic rod (30) arranged on each of the abutment ears (26), and a third pressure spring (31) coaxially movably arranged in each of the multi-stage telescopic rods (30), one end of each of the multi-stage telescopic rods (30) is connected to the abutment ear (26) and the other end is abutted against the bottom of the extension rod (29), and one end of each of the third pressure springs (31) is abutted against the abutment ear (26) and the other end is abutted against the extension rod (29).

6. The casting mold for the spherical joint of a bridge swivel according to claim 5, characterized in that: Each of the one-way power devices (33) further comprises a ball bearing (37) coaxially arranged on the rotating shaft (32) and a transmission ring (38) coaxially fixedly arranged on the rotating shaft (32); the transmission gear (34) is coaxially sleeved on the ball bearing (37); a ring groove (35) is provided on one side of the transmission gear (34); a circle of ratchet teeth (36) is provided in the ring groove (35); a plurality of mounting grooves (39) are provided in an annular manner along the axis of the transmission ring (38); a mounting shaft (40) is provided in each mounting groove (39); a pawl (41) is rotatably provided on each mounting shaft (40); a resisting spring (42) is provided on the side wall of the pawl (41); one end of the resisting spring (42) is connected to the pawl (41) and the other end is connected to the inner wall of the mounting groove (39); each pawl (41) is meshed with the ratchet teeth (36).

7. The casting mold for the spherical joint of a bridge swivel according to claim 6, characterized in that: The fixed mold (1) is provided with a first lifting ear (2), the movable mold (3) is provided with a second lifting ear (17), the top cover (56) is provided with a third lifting ear (57), and a top end of each ruler bar (25) is fixedly provided with a resisting soft plate (27).

8. A method for splicing a spherical joint casting mold for a bridge swivel, comprising the spherical joint casting mold for a bridge swivel according to claim 1, characterized in that: The following steps are involved: S1: Splicing fixed mold (1); S2: splicing the moving mold (3); S3: hoist the movable mold (3) onto the fixed mold (1) for overall assembly; S4: Install the fan-shaped cover plate (53) in the fan-shaped sink (16); S5: Assemble the top cover (56) and hoist the top cover above the movable mold (3) so that the pouring port (4) on the movable mold (3) passes through the avoidance hole (59); S6: The staff pours from the pouring port (4); S7: After pouring is completed, the top cover (56) is removed and demoulding is performed.

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