A trolley-mounted lifting device for rocket launching

Abstract

The present invention discloses a trolley-mounted lifting device for rocket launching, which relates to the technical field of lifting devices, and comprises a lifting device body and a main crossbeam, wherein the bottom of the main crossbeam is connected to a slewing support seat, the main crossbeam comprises a boom and a balance arm, the inner side of the boom is connected to a support platform arranged transversely along the boom, the top of the support platform is connected to a slide rail, a trolley is arranged on the top of the slide rail for moving forward and backward, and a guide pulley is installed on the top of the trolley. The present invention discloses a trolley-mounted lifting device for rocket launching, which not only reduces the total amount of the trolley by arranging a lifting winch and a traction device on the main crossbeam, but also maintains the balance between the boom and the balance arm, improves stability, and also increases the weight that can lift the rocket. At the same time, the heights of both sides of the main crossbeam are higher than the trolley, which can protect the trolley and reduce the impact of horizontal airflow on the trolley.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting devices, and more specifically to a trolley-mounted lifting device for rocket launching. Background Art

[0002] During rocket launch, lifting devices mainly play a role in the ground preparation stage. Such devices are used in key steps such as rocket assembly, transportation, and vertical installation on the launch pad. These devices usually integrate advanced technologies in mechanical, hydraulic, electrical and other aspects to ensure that the rocket can be launched safely and stably.

[0003] The Chinese patent application number is 201911188191.8, which discloses a crane trolley and a crane, the structure of which includes a trolley frame, a first pulley block, a second pulley block and a drive assembly mounted on the trolley frame, wherein the first pulley block is movably connected to the trolley frame, the drive assembly is connected to the first pulley block and is used to drive the first pulley block to selectively approach or move away from the second pulley block, and / or the second pulley block is movably connected to the trolley frame, the drive assembly is connected to the second pulley block and is used to drive the second pulley block to selectively approach or move away from the first pulley block. The crane trolley and the crane can efficiently carry items.

[0004] The Chinese patent with application number 202110556483.3 discloses a tower crane rope trolley and a tower crane, and the structure includes a cross-shaped frame, a pulley and a traveling wheel. The cross-shaped frame includes a first frame and a second frame arranged perpendicular to each other, and the first frame is symmetrically provided with holes, and pulleys are arranged in the holes. The first frame is located on both sides of the holes and has hollow grooves, and a slider is arranged in the hollow groove. A cover plate is arranged on the hollow groove, and a limiting column is arranged on the top of the slider. Both ends of the pulley shaft of the pulley are connected to the bearings in the sliders on both sides, and a pulley protection cover is arranged under the pulley, and the pulley protection cover is connected to the sliders on both sides through a connecting assembly; symmetrical tripods are arranged at both ends of the second frame, the tripod is vertically arranged and a traveling wheel is arranged on the top thereof, a traveling wheel protection cover is arranged on the top of the tripod, the traveling wheel protection cover is located on the upper part of the traveling wheel, and a buffer assembly is arranged on the traveling wheel shaft of the traveling wheel. The tower crane rope trolley and the tower crane improve the safety when the crane is used on the lifting device, and also improve the stability during transportation.

[0005] The lifting equipment currently used for rocket launches still has the following problems:

[0006] 1. The driving device of the crane is located at the bottom of both sides of the crane, and drives the lateral movement of the crane by cooperating with the slide rail. However, when transporting rockets, due to the heavy weight of the rockets, the driving device on the crane will increase the total amount of hoisting, thereby reducing the lifting weight. At the same time, the winch on the crane will also reduce the lifting weight.

[0007] 2. As the rocket is being transported, the entire lifting equipment is located outdoors at a high altitude. The crane inside the lifting equipment is easily affected by the high-altitude wind, which causes the crane to shake. At the same time, the wind will also cause the center of gravity to shift during hoisting, resulting in sudden shaking. These abnormal forces will be transmitted to the crane and the slide rail along the wire rope, which will not only cause impacts on the wheels and slide rails of the crane, but also increase safety risks;

[0008] 3. When the traction device stops driving the crane, the crane will slide forward for a period of time due to inertia, causing the hoisting position to deviate. Not only will frequent position adjustments cause accelerated wear, but the load will not be able to stop in time, causing collisions to places other than the predetermined position, resulting in equipment damage or personal injury.

[0009] Therefore, it is necessary to propose a trolley built-in lifting device for rocket launching to solve the above problems. Summary of the invention

[0010] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a trolley-mounted lifting device for rocket launching to solve the problems raised in the above background technology.

[0011] The technical solution is that the present invention comprises a lifting device body and a main crossbeam located on the lifting device body, the bottom of the main crossbeam is connected with a slewing support seat, the main crossbeam comprises a boom and a balance arm, the inner side of the boom is connected with a support platform arranged transversely along the boom, the top of the support platform is connected with a slide rail, the top of the slide rail is provided with a trolley for forward and backward movement, and the top of the trolley is provided with a guide pulley;

[0012] The top of the balance arm is connected to a fixed platform, the top of the fixed platform is connected to a lifting device, the lifting device includes a lifting winch and a hook located at the bottom of the trolley, a steel wire rope is wound around the lifting winch, one end of the steel wire rope passes through a guide pulley on the trolley and is connected to the hook;

[0013] A strip-shaped fixing plate is connected to the inner side of one end of the boom close to the balance arm, a traction device is connected to the top of the strip-shaped fixing plate, a vehicle stabilizing device is connected to the bottom of the traveling crane, a traction rope is wound around the traction device, both ends of the traction rope are connected to the vehicle stabilizing device, and the traction rope pulls the vehicle stabilizing device to unlock;

[0014] The traction device includes a reducer fixed to the top of the strip-shaped fixed plate and a retractable reel connected to the output end of the reducer, the retractable reel includes a left reel, a middle reel and a right reel, the output end of the reducer is connected to a rotating rod, the outer ring surface of the rotating rod is connected to a driving sleeve, the left reel and the right reel are fixedly connected to the outer ring surfaces of both ends of the driving sleeve, the middle reel is rotatably connected to the middle part of the outer wall of the driving sleeve, and the middle reel is located between the left reel and the right reel;

[0015] A through cavity is provided inside the right reel, and a plug-in rod is slidably connected inside the through cavity. The plug-in rod and the inner wall of the through cavity are connected by a spring. An oblique groove is provided on the side of the middle reel close to the right reel, and an inclined surface is provided on one end of the plug-in rod close to the oblique groove, and the plug-in rod is inserted into the oblique groove through the inclined surface.

[0016] Furthermore, both ends of the rotating rod are rotatably connected to a turntable support frame fixed on a strip-shaped fixed plate, a push rod is connected to the turntable support frame away from one end of the reducer, the output end of the push rod is connected to a rotating disk, the end of the driving sleeve close to the right reel is connected to a spline portion, the side of the rotating disk close to the right reel is rotatably connected to a spline sliding disk, the spline sliding disk is spline-connected to the spline portion, and the side of the spline sliding disk close to the right reel is connected to a top block matched with the plug-in rod;

[0017] An arc-shaped cavity is provided on a side of the right reel close to the middle reel, and a reset plate located in the arc-shaped cavity is connected to a side of the middle reel close to the right reel, and the reset plate and the arc-shaped cavity are connected by a spring;

[0018] A first oil chamber is provided on the side of the oblique groove close to the left reel, and a second oil chamber is provided on the side of the middle reel close to the left reel. The first oil chamber and the second oil chamber are connected by an oil circuit, a reinforcing column is slidably connected in the second oil chamber, a positioning groove corresponding to the reinforcing column is provided on one side of the left reel, a spring is connected between the reinforcing column and the inner wall of the second oil chamber, and a movable plate is provided for transverse movement in the first oil chamber.

[0019] Furthermore, the outer walls of the left drum, the middle drum and the right drum are connected with wear-resistant sleeves, the wear-resistant sleeves are provided with rope grooves, and the traction ropes are wound in the rope grooves. The traction ropes on the left drum and the right drum are connected to the traveling vehicle, and the traction rope on the middle drum is connected to the vehicle stabilizing device.

[0020] Furthermore, the vehicle stabilizing device includes a triggering device, a wheel fixing device and a supporting fixing device located at the bottom of the vehicle;

[0021] The trigger device comprises an oil tank and a trigger box connected to one side of the oil tank, a driven rod penetrating the trigger box is slidably connected to the trigger box, two ends of the driven rod are connected to the traction rope, a fixed shaft is fixedly connected in the trigger box, an extrusion rod is rotatably connected to the fixed shaft, the extrusion rod comprises an arc block and a connecting plate, a trigger slide groove is provided on the connecting plate, the driven rod is slidably connected in the trigger slide groove through a pin shaft, and two ends of the arc block extend outwards;

[0022] A piston rod extending into the trigger box is slidably connected to the side wall of the oil tank, one end of the piston rod located in the trigger box is connected to an extrusion plate, and one end of the piston rod located in the oil tank is connected to a piston plate, a spring is connected between the extrusion plate and the side wall of the oil tank, a hydraulic oil pipe is connected to the side wall of the oil tank, and the other end of the hydraulic oil pipe is connected to an external oil storage tank.

[0023] Furthermore, the wheel fixing device comprises a roller and wheel frames located on both sides of the roller, wherein a frame cavity is opened inside one of the wheel frames, a wheel rod extending into the frame cavity is connected inside the roller, a disc is connected to one end of the wheel rod located in the frame cavity, a first brake pad and an annular groove frame are connected to one end of the disc located in the frame cavity, and the first brake pad is sleeved on the outer annular surface of the annular groove frame;

[0024] A movable disk is axially slidably connected in the cavity of the frame, an annular cavity and a circular cavity are provided on the side of the movable disk close to the first brake pad, an annular movable block is slidably connected in the annular cavity, a second brake pad is connected to the side of the annular movable block close to the first brake pad, a spring is connected between the other side of the annular movable block and the inner wall of the annular cavity, an insertion frame is slidably connected in the circular cavity, a fixed rod is arranged in an evenly spaced array inside the insertion frame, a clamping column is slidably connected to the fixed rod, and one end of the clamping column is connected to the insertion frame by a spring.

[0025] Furthermore, a hydraulic oil pipe is connected to the wheel frame, and the hydraulic oil pipe is connected to a side of the frame cavity away from the roller;

[0026] A limiting groove is provided on the side wall of the frame cavity, and one end of the limiting groove close to the first brake pad is connected to the movable disc via a spring;

[0027] A communicating hole is provided between the annular cavity and the circular cavity, and the annular cavity is filled with hydraulic oil.

[0028] Furthermore, the supporting and fixing device includes a stabilizing support frame fixedly connected to the bottom of the vehicle, a hydraulic cylinder fixedly connected to the stabilizing support frame, a moving rod and a semicircular fixed block, the moving rod is connected to the output end of the hydraulic cylinder, the hydraulic cylinder is connected to the oil tank through a hydraulic oil pipe, the outer wall of the moving rod is provided with sliding grooves with equal spacing, and two adjacent sliding grooves are arranged oppositely, the inner ring surface of the semicircular fixed block is connected with a protrusion located in the sliding groove, the stabilizing support frame is connected with a supporting sleeve sleeved on the outer wall of the moving rod, the supporting sleeve is located between two adjacent semicircular fixed blocks, and the semicircular fixed block is connected with an anti-slip pad.

[0029] Furthermore, an extension tube is connected to the support sleeve away from one end of the hydraulic cylinder, one end of the extension tube is connected to a cover plate, a screw rod is rotatably connected to the cover plate, a reset disk is threadedly connected to the screw rod, a spring is connected between the reset disk and the moving rod, a guide boss is provided on the inner wall of the extension tube, and the reset disk is slidably connected along the guide boss.

[0030] Compared with the existing known technologies, the technical solution provided by the present invention has the following significant effects:

[0031] 1. This device not only reduces the total amount of the vehicle, but also maintains the balance between the boom and the balance arm, improves stability, and increases the weight of the rocket that can be lifted. At the same time, the height of both sides of the main beam is higher than the vehicle, which can protect the vehicle and reduce the impact of horizontal airflow on the vehicle.

[0032] 2. This device sets up multiple parts of the traction device, and the reel of each part can pull the vehicle, which has the effect of evenly distributing the driving pulling force and reducing the pulling force on a single traction rope, thereby improving stability and extending the service life. At the same time, it can cooperate with the push rod to achieve the effect of timely triggering the driving fixing device.

[0033] 3. This device is equipped with a wheel fixing device on the roller at the bottom of the crane. When the crane needs to stop, it slows down the roller first and then locks it, so that the crane can stop in time, avoiding the situation that the crane continues to move forward due to inertia after the traction device stops, thereby improving the precise movement of the crane during hoisting.

[0034] 4. This device is equipped with a supporting and fixing device at the bottom of the vehicle. When the vehicle stops, the supporting and fixing device can be activated in time to fix it on the slide rail to reduce the impact of high-altitude wind on the vehicle. At the same time, multiple semicircular fixing blocks are provided to improve the heat dissipation capacity of the brake system to adapt to the frequent movement of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0036] Figure 2 A schematic diagram of a crane of the structure of the present invention being located on a slide rail;

[0037] Figure 3 It is a three-dimensional schematic diagram of the traction device in the present invention;

[0038] Figure 4 is a cross-sectional view of the traction device of the present invention;

[0039] Figure 5 It is an exploded schematic diagram of the reel in the present invention;

[0040] Figure 6 is a three-dimensional schematic diagram of the trigger device in the present invention;

[0041] Figure 7 is a three-dimensional schematic diagram of the wheel fixing device of the present invention;

[0042] Figure 8 It is a three-dimensional schematic diagram of the supporting and fixing device in the present invention;

[0043] Fig. 9 It is a three-dimensional schematic diagram of the structure of the moving rod and the semicircular fixed block in the present invention;

[0044] Fig.10 It is a three-dimensional schematic diagram of the semicircular fixing block in the present invention.

[0045] Reference numerals: 101, main beam; 102, slewing support seat; 103, boom; 104, balance arm; 105, slide rail; 106, crane; 107, fixed platform; 108, lifting winch; 109, strip fixed plate; 110, traction rope; 111, reducer; 112, left drum; 113, middle drum; 114, right drum; 115, rotating rod; 116, driving sleeve; 117, through cavity; 118, plug rod; 119, moving plate; 120, oblique groove; 121, turntable support frame; 122, push rod; 123, rotating disk; 124, spline portion; 125, spline sliding disk; 126, top block; 127, arc cavity; 128, reset plate; 129, first oil chamber; 130, second oil chamber; 131, reinforcement column; 132, positioning groove; 133, wear-resistant sleeve; 134, oil tank; 135, trigger box; 136, driven rod; 137, fixed shaft; 138, extrusion rod; 139, Arc block; 140, connecting plate; 141, trigger slide; 142, piston rod; 143, extrusion plate; 144, piston plate; 145, hydraulic oil pipe; 146, roller; 147, wheel frame; 148, frame cavity; 149, wheel rod; 150, disc; 151, first brake pad; 152, annular groove frame; 153, moving disc; 154, annular cavity; 155, circular cavity; 156, annular moving block; 157, second brake pad; 158, insertion frame; 159. Fixed rod; 160. Snap-in column; 161. Limiting groove; 162. Connecting hole; 163. Hydraulic cylinder; 164. Moving rod; 165. Semicircular fixed block; 166. Sliding groove; 167. Boss; 168. Vehicle stabilizing support frame; 169. Support sleeve; 170. Anti-skid pad; 171. Extension tube; 172. Cover plate; 173. Screw rod; 174. Reset plate; 175. Guide boss; 176. Support platform; 177. Hook; 178. Guide pulley. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0047] Depend on Figures 1 to 10The main crossbeam 101 includes a lifting device body and a main crossbeam 101 located on the lifting device body. A slewing support seat 102 is connected to the bottom of the main crossbeam 101. The main crossbeam 101 is connected to the top of the slewing support seat 102. The slewing support seat 102 drives the main crossbeam 101 to rotate left and right to improve the hoisting capacity of the rocket. The slewing support seat 102 is also called a slewing support or a rotating support. It is a key component connecting the upper structure and the lower structure of the crane. It not only supports the weight of the upper structure of the crane, but also allows the upper structure to rotate 360 ​​degrees relative to the lower structure, thereby realizing the hoisting operation of the cargo in different directions. This is a mature device, so it will not be described in detail. The main crossbeam 101 It includes a boom 103 and a balance arm 104. The length of the boom 103 is longer than that of the balance arm 104. The inner side of the boom 103 is connected to a support platform 176 arranged horizontally along the boom 103. A slide rail 105 is fixed to the top of the support platform 176. The crane 106 is guided by the slide rail 105. The support platform 176 is located at the inner bottom of the boom 103, so that the heights of both sides of the boom 103 are higher than both sides of the crane 106, which can reduce the impact of horizontal wind force on the crane 106. The top of the support platform 176 is connected to the slide rail 105. The crane 106 moves forward and backward on the top of the slide rail 105. A guide pulley 178 is installed on the top of the crane 106. The guide pulley 178 is used to change the direction of the wire rope.

[0048] Since the end of the boom 103 away from the slewing support seat 102 lacks a supporting structure, and the weight of the rocket is too heavy, setting the hoisting winch 108 on the traveling crane 106 will cause the loading capacity to decrease during the hoisting. The following provides a structure that can reduce the weight of the traveling crane 106 and keep the main beam 101 balanced: Figure 1 and Figure 2 The top of the balance arm 104 is connected to a fixed platform 107, and the top of the fixed platform 107 is connected to a lifting device, which includes a lifting winch 108 and a hook 177 located at the bottom of the trolley 106. Preferably, the lifting device is provided in two sets, namely a main hook 177 and an auxiliary hook 177. A steel wire rope is wound around the lifting winch 108, and one end of the steel wire rope passes through a guide pulley 178 on the trolley 106 and is connected to the hook 177. The heavy lifting winch 108 is arranged on the balance arm 104, which can not only reduce the weight on the trolley 106, but also ensure the balance between the boom 103 and the balance arm 104.

[0049] The conventional crane 106 is moved by the end beam of the track at the bottom, but this increases the weight of one end of the boom 103, thereby reducing the weight of the hoisting. The following provides a structure for reducing the weight of the driving device on the crane 106: Figure 1 and Figure 2A strip fixing plate 109 is connected to the inner side of one end of the boom 103 close to the balance arm 104, and a traction device is connected to the top of the strip fixing plate 109. The traction device is located on the side of the boom 103 close to the slewing support seat 102, which can not only reduce the weight of the crane 106, but also be staggered with the steel wire rope of the lifting device to avoid mutual interference. A stabilizing device is connected to the bottom of the crane 106, and a traction rope 110 is wound around the traction device. Both ends of the traction rope 110 are connected to the stabilizing device, and the traction rope 110 pulls the stabilizing device to unlock it.

[0050] When in use, the traction device pulls the trolley 106 to move by the traction rope 110. The following provides a structure for distributing the pulling force to multiple traction ropes 110 when the trolley 106 is pulled by the traction rope 110: Figures 3 to 5 The traction device includes a reducer 111 fixed on the top of the strip fixing plate 109 and a retractable reel connected to the output end of the reducer 111. The retractable reel includes a left reel 112, a middle reel 113 and a right reel 114. When in use, the traction ropes 110 respectively arranged on the left reel 112, the middle reel 113 and the right reel 114 can all play a traction role on the traveling vehicle 106, reducing the pulling force when the single-strand traction rope 110 pulls the traveling vehicle 106, and improving the traction device when in use. Stability, the output end of the reducer 111 is connected to a rotating rod 115, the outer ring surface of the rotating rod 115 is connected to a driving sleeve 116, the left reel 112 and the right reel 114 are fixedly connected to the outer ring surfaces at both ends of the driving sleeve 116, the output end of the reducer 111 directly drives the left reel 112 and the right reel 114 to rotate, the middle reel 113 is rotatably connected to the middle part of the outer wall of the driving sleeve 116, and the middle reel 113 is located between the left reel 112 and the right reel 114.

[0051] Since the left reel 112 and the right reel 114 can rotate following the output end of the reducer 111, and the middle reel 113 rotates on the driving sleeve 116, the middle reel 113 and the left reel 112 and the right reel 114 on both sides will not rotate synchronously. The following provides a structure that can keep the left reel 112, the middle reel 113 and the right reel 114 in synchronous motion: Figure 4 and Figure 5The right reel 114 is provided with a through cavity 117 inside, and a plug rod 118 is slidably connected in the through cavity 117. The through cavity 117 runs through the entire right reel 114. The end of the through cavity 117 away from the middle reel 113 is larger than the other end. At the same time, the larger end and the plug rod 118 are connected by a spring. The spring makes the plug rod 118 located in the through cavity 117. When the top block 126 enters the through cavity 117, the plug rod 118 will be pushed out to the other end. After being inserted into the oblique groove 120, the right reel 114 can drive the middle reel 113 to rotate, and the plug rod 118 and the inner wall of the through cavity 117 are connected by a spring, and the spring pushes the plug rod 118 to be located in the through cavity 117. The spring is in a compressed state, so that the plug rod 118 is located in the through cavity 117. The middle reel 113 is provided with an oblique groove 120 on one side close to the right reel 114, and an inclined surface is provided on one end of the plug rod 118 close to the oblique groove 120. Figure 5 The oblique groove 120 is a spiral sliding inclined groove. When the plug-in rod 118 is inserted, it can drive the middle reel 113 to rotate, and the plug-in rod 118 is inserted into the oblique groove 120 through the inclined surface.

[0052] Since the insertion of the plug rod 118 into the oblique groove 120 requires a driving structure, and at the same time, the plug rod 118 needs to be accurately pushed to move to avoid the situation where the plug rod 118 does not enter the oblique groove 120, the following provides a structure that enables the plug rod 118 to be inserted into the oblique groove 120: Specifically, refer to Figure 3 and Figure 4 , both ends of the rotating rod 115 are rotatably connected with a turntable support frame 121 fixed on the strip fixed plate 109, the turntable support frame 121 is located on both sides of the rotating rod 115, and is used to stabilize the rotation of the rotating rod 115, and a push rod 122 is connected to the turntable support frame 121 away from the end of the reducer 111. The push rod 122 is preferably a hydraulic push rod 122, and one end of the push rod 122 is fixed to the turntable support frame 121. When the push rod 122 is started, it can push the rotating disk 123 to move. The output end of the push rod 122 is connected to the rotating disk 123, and the end of the driving sleeve 116 close to the right reel 114 is connected to the spline portion 124. The side of the moving disk 123 close to the right reel 114 is rotatably connected with a spline sliding disk 125, the spline sliding disk 125 is spline-connected to the spline portion 124, the spline sliding disk 125 moves along the spline portion 124, the spline sliding disk 125 is rotatably connected to the rotating disk 123, the spline sliding disk 125 rotates along with the driving sleeve 116 through the spline portion 124, and the side of the spline sliding disk 125 close to the right reel 114 is connected with a top block 126 that cooperates with the plug-in rod 118. When the push rod 122 is started, the top block 126 will be pushed into the through cavity 117, thereby pushing the plug-in rod 118 into the oblique groove 120.

[0053] When the plug rod 118 is pulled out from the oblique groove 120, the middle reel 113 needs to be reset. The following provides a structure that can automatically reset the middle reel 113: Figure 5 An arc-shaped cavity 127 is provided on the side of the right reel 114 close to the middle reel 113. The arc-shaped cavity 127 facilitates the reset plate 128 to rotate along the rotating rod 115. The middle reel 113 is connected to the side close to the right reel 114 with the reset plate 128 located in the arc-shaped cavity 127. When the middle reel 113 rotates, the spring between the inner wall of the arc-shaped cavity 127 and the reset plate 128 will be compressed. When the plug-in rod 118 is pulled out, the spring will push the middle reel 113 to reset, and the reset plate 128 and the arc-shaped cavity 127 are connected by the spring.

[0054] When the right reel 114 drives the middle reel 113 to rotate through the plug rod 118, the side close to the inclined surface of the oblique groove 120 lacks a stable supporting structure. The following provides a structure for improving the connection ability between the middle reel 113 and the left reel 112 and the right reel 114 on both sides: Figure 4 and Figure 5 A first oil chamber 129 is provided on the side of the oblique groove 120 close to the left reel 112, and the first oil chamber 129 is filled with hydraulic oil. A second oil chamber 130 is provided on the side of the middle reel 113 close to the left reel 112. The first oil chamber 129 and the second oil chamber 130 are connected by an oil circuit. When the plug-in rod 118 enters the first oil chamber 129 from the oblique groove 120, it pushes the moving plate 119 to move, so that the hydraulic oil in the first oil chamber 129 enters the second oil chamber 130, thereby pushing the reinforcement in the second oil chamber 130. The column 131 extends outward, and the reinforcing column 131 is slidably connected in the second oil chamber 130. A positioning groove 132 corresponding to the reinforcing column 131 is opened on one side of the left reel 112. The size of the reinforcing column 131 corresponds to the positioning groove 132. A spring is connected between the reinforcing column 131 and the inner wall of the second oil chamber 130. A movable plate 119 is movable laterally in the first oil chamber 129. When the reinforcing column 131 enters the positioning groove 132, the left reel 112 will drive the middle reel 113 to rotate through the reinforcing column 131, thereby improving the stability during connection.

[0055] Since the retractable reel needs to rotate frequently, it will wear out after long-term use. The following is a structure to increase the service life of the retractable reel: Figure 3Specifically, wear-resistant sleeves 133 are connected to the outer walls of the left drum 112, the middle drum 113 and the right drum 114. Preferably, the wear-resistant sleeve 133 is detachably installed on the retractable drum so that it can be replaced when worn. A rope groove is opened on the wear-resistant sleeve 133, and a traction rope 110 is wound in the rope groove. The traction ropes 110 on the left drum 112 and the right drum 114 are connected to the traveling crane 106, and the traction rope 110 on the middle drum 113 is connected to the vehicle stabilizing device. The traction ropes 110 on the left drum 112, the middle drum 113 and the right drum 114 are all connected to the traveling crane 106. When the retractable drum rotates, the multiple traction ropes 110 are subjected to the same tension.

[0056] Specifically, the vehicle stabilizing device includes a trigger device, a wheel fixing device and a supporting fixing device located at the bottom of the vehicle 106, the traction rope 110 is used to drive the trigger device to operate, and the trigger device is used to drive the wheel fixing device and the supporting fixing device to operate.

[0057] The trigger device needs a driving device to unlock. Since the weight of the vehicle 106 needs to be reduced, the following provides a structure that can unlock the vehicle 106 by pulling the trigger device without significantly increasing the weight of the vehicle 106: Figure 6 The trigger device includes an oil tank 134 and a trigger box 135 connected to one side of the oil tank 134. The oil tank 134 is filled with hydraulic oil. A driven rod 136 that penetrates the trigger box 135 is slidably connected to the trigger box 135. Both ends of the traction rope 110 on the middle drum 113 are connected to the driven rod 136. The driven rod 136 is pulled to move on the trigger box 135 by the rotation of the middle drum 113. Both ends of the driven rod 136 are connected to the traction rope 110. A fixed shaft 137 is fixedly connected in the trigger box 135. An extrusion rod 138 is rotatably connected to the fixed shaft 137. The extrusion rod 138 is rotatably connected to the fixed shaft 137. 38 rotates along the fixed rotating shaft 137, the extrusion rod 138 includes an arc block 139 and a connecting plate 140, the connecting plate 140 is provided with a trigger slide groove 141, the driven rod 136 is slidably connected in the trigger slide groove 141 through a pin shaft, when the driven rod 136 moves, the pin shaft on the outer wall moves in the trigger slide groove 141, thereby driving the extrusion rod 138 to rotate along the fixed rotating shaft 137, the two ends of the arc block 139 extend outward, when the extrusion rod 138 rotates, the two ends will be squeezed toward the extrusion plate 143, thereby driving the extrusion plate 143 to move.

[0058] Although the traction rope 110 drives the extrusion rod 138 to rotate, it does not directly act on the hydraulic oil in the oil tank 134. The following provides a structure for driving the hydraulic oil in the oil tank 134 to move: Figure 6, a piston rod 142 extending into the trigger box 135 is slidably connected to the side wall of the oil tank 134, and an extrusion plate 143 is connected to one end of the piston rod 142 located in the trigger box 135. When the extrusion plate 143 moves, the piston plate 144 is driven to move through the piston rod 142, thereby increasing the area of ​​the oil tank 134 filled with hydraulic oil, and the hydraulic oil in other areas is sucked into the oil tank 134 through the hydraulic oil pipe 145. The end of the piston rod 142 located in the oil tank 134 is connected to the piston plate 144, and a spring is connected between the extrusion plate 143 and the side wall of the oil tank 134. The spring is used to drive the extrusion plate 143 to reset. A hydraulic oil pipe 145 is connected to the side wall of the oil tank 134, and the other end of the hydraulic oil pipe 145 is connected to the external oil storage tank 134. The hydraulic oil pipe 145 is used to connect the oil tank 134 and other branch oil chambers.

[0059] When the traction device stops moving, the trolley 106 slides forward for a distance, thereby causing position deviation. The following provides a structure for stopping the rotation of the roller 146 so that the trolley 106 stops in time and prevents it from rotating: Specifically, refer to Figure 7 The wheel fixing device includes a roller 146 and a wheel frame 147 located on both sides of the roller 146, the wheel frame 147 is used to support the roller 146, and a frame cavity 148 is opened inside one of the wheel frames 147, and a wheel rod 149 extending into the frame cavity 148 is connected to the inside of the roller 146. When the roller 146 rotates, the disc 150 is driven to rotate through the wheel rod 149, and one end of the wheel rod 149 located in the frame cavity 148 is connected to the disc 150, and the disc 150 is used to connect the first brake pad 151 and the annular groove frame 152, and one end of the disc 150 located in the frame cavity 148 is connected to the first brake pad 151 and the annular groove frame 152, and the annular groove frame 152 is opened inside a hexagonal groove, and the first brake pad 151 is sleeved on the outer ring surface of the annular groove frame 152.

[0060] When the vehicle 106 stops, it will move forward due to inertia. If the roller 146 is directly locked at this time, the roller 146 will slide on the slide rail 105 instead of rotating, which may easily cause damage to the roller 146. The speed of the roller 146 needs to be reduced before it can be locked. The following provides a structure that can first decelerate and then lock the roller 146: Figure 7A movable plate 153 is axially slidably connected in the frame cavity 148, and the movable plate 153 moves axially along the frame cavity 148. An annular cavity 154 and a circular cavity 155 are provided on the side of the movable plate 153 close to the first brake pad 151. An annular movable block 156 is slidably connected in the annular cavity 154. A second brake pad 157 is connected to the side of the annular movable block 156 close to the first brake pad 151. The first brake pad 151 can come into contact with the second brake pad 157, thereby decelerating the first brake pad 151. A spring is connected between the other side of the annular movable block 156 and the inner wall of the annular cavity 154. The spring pushes the second brake pad 157 to first connect with the first brake pad 151, thereby decelerating the roller 146, so that the clamping column 160 can be inserted into the annular groove frame 152 to decelerate the roller The wheel 146 is fixed, and an insertion frame 158 is slidably connected in the circular cavity 155. The interior of the insertion frame 158 is provided with a fixing rod 159 in an evenly spaced array. A clamping column 160 is slidably connected to the fixing rod 159. The area of ​​the clamping column 160 is larger than the size of the hexagonal groove in the annular groove frame 152. When the clamping column 160 is not inserted into the hexagonal groove on the annular groove frame 152, the spring on the other side will be compressed, and the clamping column 160 entering the groove will limit the annular groove frame 152. One end of the clamping column 160 is connected to the insertion frame 158 by a spring. When the clamping column 160 contacts the annular groove frame 152, no matter what angle the annular groove frame 152 is at, the clamping column 160 can be inserted into the hexagonal groove on the annular groove frame 152, thereby fixing the roller 146.

[0061] The movable plate 153 needs a driving device to drive it to move. The following provides a structure that can drive the movable plate 153 to move: Specifically, refer to Figure 7 A hydraulic oil pipe 145 is connected to the wheel frame 147, and the hydraulic oil pipe 145 is connected to the side of the frame cavity 148 away from the roller 146. The hydraulic oil pushes the movable plate 153 to move toward the first brake pad 151. Specifically, when the oil chamber in the oil tank 134 becomes smaller, the hydraulic oil will enter the frame cavity 148 through the hydraulic oil pipe 145 and push the movable plate 153 to move toward the first brake pad 151.

[0062] Since the movable plate 153 needs to decelerate the roller 146, it needs to be limited to avoid the situation where the deceleration capacity is reduced due to the rotation of the movable plate 153. The following provides a structure for limiting the movable plate 153 and pushing it to reset: Figure 7A limiting groove 161 is provided on the side wall of the frame cavity 148. The limiting groove 161 is used to enable the movable plate 153 to move axially only to prevent it from rotating. One end of the limiting groove 161 close to the first brake pad 151 is connected to the movable plate 153 through a spring. The spring is in a compressed state and is used to push the movable plate 153 to a side away from the first brake pad 151.

[0063] Since the roller 146 may be at any angle when it stops, if it cannot adapt to its arbitrary angle, the locking structure will fail. The following provides a structure in which the locking structure can be inserted into the annular groove frame 152 at any angle after the second brake pad 157 decelerates the roller 146: Figure 7 A connecting hole 162 is provided between the annular cavity 154 and the circular cavity 155 . The connecting hole 162 is used for the flow of hydraulic oil. The annular cavity 154 is filled with hydraulic oil. When the annular cavity 154 is compressed, the hydraulic oil will enter the circular cavity 155 , thereby pushing the insertion frame 158 to move toward the annular groove frame 152 .

[0064] After the roller 146 of the trolley 106 is fixed, there is still a situation where the trolley 106 is displaced by high-altitude wind. The following provides a structure for fixing the trolley 106 on the slide rail 105 to reduce the impact of wind on the trolley 106: Specifically, refer to Figure 8 and Fig. 9The supporting and fixing device includes a vehicle stabilizing support frame 168 fixedly connected to the bottom of the traveling crane 106, a hydraulic cylinder 163 fixedly connected to the vehicle stabilizing support frame 168, a moving rod 164 and a semicircular fixed block 165. The moving rod 164 is connected to the output end of the hydraulic cylinder 163. The hydraulic cylinder 163 is connected to the oil tank 134 through a hydraulic oil pipe 145. When the oil chamber space in the oil tank 134 becomes smaller, the hydraulic oil will enter the hydraulic cylinder 163, thereby pushing the hydraulic cylinder 163 to move. The outer wall of the moving rod 164 is provided with sliding grooves 166 with equal spacing. The two adjacent sliding grooves 166 are arranged oppositely. When the moving rod 164 moves, the two adjacent semicircular fixed blocks 165 will be clamped toward the slide rail 105, thereby being fixed on the slide rail 105. The inner ring surface of the semicircular fixed block 165 is connected with a sliding groove 166 located in the sliding groove 166 The protrusion 167 inside the semicircular fixed block 165 is rotatably connected between two adjacent support sleeves 169. When the moving rod 164 moves, the protrusion 167 inside the semicircular fixed block 165 will slide in the sliding groove 166, thereby driving the semicircular fixed block 165 to rotate. The vehicle stabilizing support frame 168 is used to fix the entire supporting and fixing device. The vehicle stabilizing support frame 168 is connected with a support sleeve 169 sleeved on the outer wall of the moving rod 164. The support sleeve 169 is located between two adjacent semicircular fixed blocks 165. There are multiple semicircular fixed blocks 165, which is conducive to air flow, effectively improves the heat dissipation efficiency, and reduces the performance degradation caused by high temperature. Because the lifting equipment needs to be started and stopped frequently during use, the temperature of the brake structure will increase. The semicircular fixed block 165 is connected with an anti-skid pad 170, and the anti-skid pad 170 is used to improve the stability during clamping.

[0065] When the output end of the hydraulic cylinder 163 is retracted, the moving rod 164 may become stuck when following the movement. The following provides a structure that can promote the hydraulic oil in the hydraulic cylinder 163 to move back to the oil tank 134 and drive the moving rod 164 to move: Specifically, refer to Fig.10 An extension tube 171 is connected to the support sleeve 169 away from one end of the hydraulic cylinder 163, and a cover plate 172 is connected to one end of the extension tube 171. A screw rod 173 is rotatably connected to the cover plate 172. By rotating the screw rod 173, it is convenient to adjust the compression degree of the spring, thereby adjusting the movement efficiency of the hydraulic oil. A reset disk 174 is threadedly connected to the screw rod 173, and a spring is connected between the reset disk 174 and the moving rod 164. A guide boss 175 is provided on the inner wall of the extension tube 171. The guide boss 175 enables the reset disk 174 to support axial movement, thereby squeezing the spring. The reset disk 174 is slidably connected along the guide boss 175. When the output end of the hydraulic cylinder 163 retracts, the spring pushes the moving rod 164 to move.

[0066] When the present invention is in use, the lifting winch 108 drives the hook 177 at the bottom of the trolley 106 to move up and down through the wire rope, the traction device pulls the trolley 106 to move back and forth on the slide rail 105, and the main beam 101 can rotate along the slewing support seat 102. Through the coordinated use of multiple components, lifting operations are performed.

[0067] When it is necessary to drive the trolley 106 to move, the push rod 122 and the traction device are started in sequence. The push rod 122 will push the connecting rod 118 to be inserted into the oblique groove 120. At this time, the middle drum 113 pulls the driven rod 136 to move through the traction rope 110, and the driven rod 136 drives the arc block 139 to rotate along the fixed shaft 137, thereby squeezing the extrusion plate 143, so that the volume of the oil chamber in the oil tank 134 becomes larger, thereby sucking the hydraulic oil in the frame cavity 148 and the hydraulic cylinder 163, so that the wheel fixing device and the supporting fixing device are unlocked. At this time, the output end of the reducer 111 pulls the trolley 106 to move through the traction rope 110 on the retractable drum to adjust the position of the trolley 106.

[0068] When it is necessary to stop the trolley 106, the push rod 122 and the reducer 111 are stopped at the same time. At this time, the connecting rod 118 will move out of the oblique groove 120. At this time, the spring in the arc cavity 127 drives the middle reel 113 to reset. At the same time, the spring between the extrusion plate 143 and the outer wall of the oil tank 134 also drives the driven rod 136 to reset through the arc block 139. At this time, the oil chamber in the oil tank 134 becomes smaller, and the hydraulic oil is supplied to the wheel fixing device and the supporting fixing device through the hydraulic oil pipe 145 to make them move, thereby fixing the trolley 106 on the slide rail 105, so as to achieve the effect of timely parking and fixing.

[0069] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A trolley-mounted lifting device for rocket launching, comprising a lifting device body and a main crossbeam (101) located on the lifting device body, characterized in that: The bottom of the main crossbeam (101) is connected to a slewing support seat (102), the main crossbeam (101) comprises a boom (103) and a balance arm (104), the inner side of the boom (103) is connected to a support platform (176) arranged transversely along the boom (103), the top of the support platform (176) is connected to a slide rail (105), a trolley (106) is provided at the top of the slide rail (105) for forward and backward movement, and a guide pulley (178) is installed at the top of the trolley (106); The top of the balancing arm (104) is connected to a fixed platform (107), and the top of the fixed platform (107) is connected to a lifting device, the lifting device comprising a lifting winch (108) and a hook (177) located at the bottom of the trolley (106), a steel wire rope is wound around the lifting winch (108), and one end of the steel wire rope passes through a guide pulley (178) on the trolley (106) and is connected to the hook (177); A strip-shaped fixing plate (109) is connected to the inner side of one end of the boom (103) close to the balance arm (104); a traction device is connected to the top of the strip-shaped fixing plate (109); a vehicle stabilizing device is connected to the bottom of the traveling crane (106); a traction rope (110) is wound around the traction device; both ends of the traction rope (110) are connected to the vehicle stabilizing device; the traction rope (110) pulls the vehicle stabilizing device to unlock it; The traction device comprises a reducer (111) fixed to the top of the strip-shaped fixed plate (109) and a retractable reel connected to the output end of the reducer (111), the retractable reel comprising a left reel (112), a middle reel (113) and a right reel (114), the output end of the reducer (111) being connected to a rotating rod (115), the outer ring surface of the rotating rod (115) being connected to a driving sleeve (116), the left reel (112) and the right reel (114) being fixedly connected to the outer ring surfaces at both ends of the driving sleeve (116), the middle reel (113) being rotatably connected to the middle part of the outer wall of the driving sleeve (116), and the middle reel (113) being located between the left reel (112) and the right reel (114); A through cavity (117) is provided inside the right reel (114), a plug rod (118) is slidably connected inside the through cavity (117), the plug rod (118) and the inner wall of the through cavity (117) are connected via a spring, an oblique groove (120) is provided on a side of the middle reel (113) close to the right reel (114), an inclined surface is provided at one end of the plug rod (118) close to the oblique groove (120), and the plug rod (118) is inserted into the oblique groove (120) via the inclined surface.

2. A trolley-mounted lifting device for rocket launching according to claim 1, characterized in that: Both ends of the rotating rod (115) are rotatably connected to a rotating disc support frame (121) fixed on a strip-shaped fixed plate (109); a push rod (122) is connected to the rotating disc support frame (121) at one end away from the reducer (111); an output end of the push rod (122) is connected to a rotating disc (123); an end of the driving sleeve (116) close to the right reel (114) is connected to a spline portion (124); a side of the rotating disc (123) close to the right reel (114) is rotatably connected to a spline sliding disc (125); the spline sliding disc (125) is spline-connected to the spline portion (124); a side of the spline sliding disc (125) close to the right reel (114) is connected to a top block (126) that matches the plug-in rod (118); An arc-shaped cavity (127) is formed on a side of the right reel (114) close to the middle reel (113); a reset plate (128) located in the arc-shaped cavity (127) is connected to a side of the middle reel (113) close to the right reel (114); and the reset plate (128) and the arc-shaped cavity (127) are connected via a spring. A first oil chamber (129) is provided on a side of the oblique groove (120) close to the left reel (112), and a second oil chamber (130) is provided on a side of the middle reel (113) close to the left reel (112). The first oil chamber (129) and the second oil chamber (130) are connected via an oil path. A reinforcing column (131) is slidably connected in the second oil chamber (130). A positioning groove (132) corresponding to the reinforcing column (131) is provided on one side of the left reel (112). A spring is connected between the reinforcing column (131) and the inner wall of the second oil chamber (130). A movable plate (119) is laterally movable in the first oil chamber (129).

3. A trolley-mounted lifting device for rocket launching according to claim 2, characterized in that: The outer walls of the left reel (112), the middle reel (113) and the right reel (114) are all connected with wear-resistant sleeves (133), the wear-resistant sleeves (133) are provided with rope grooves, and a traction rope (110) is wound in the rope grooves. The traction ropes (110) on the left reel (112) and the right reel (114) are connected to the traveling crane (106), and the traction rope (110) on the middle reel (113) is connected to the vehicle stabilizing device.

4. A trolley-mounted lifting device for rocket launching according to claim 1, characterized in that: The vehicle stabilizing device comprises a triggering device, a wheel fixing device and a supporting fixing device located at the bottom of the vehicle (106); The trigger device comprises an oil tank (134) and a trigger box (135) connected to one side of the oil tank (134); a driven rod (136) penetrating the trigger box (135) is slidably connected to the trigger box (135); two ends of the driven rod (136) are connected to the traction rope (110); a fixed rotating shaft (137) is fixedly connected inside the trigger box (135); an extrusion rod (138) is rotatably connected to the fixed rotating shaft (137); the extrusion rod (138) comprises an arc block (139) and a connecting plate (140); a trigger sliding groove (141) is provided on the connecting plate (140); the driven rod (136) is slidably connected in the trigger sliding groove (141) via a pin shaft; two ends of the arc block (139) extend outward; A piston rod (142) extending into the trigger box (135) is slidably connected to the side wall of the oil tank (134); one end of the piston rod (142) located in the trigger box (135) is connected to an extrusion plate (143); one end of the piston rod (142) located in the oil tank (134) is connected to a piston plate (144); a spring is connected between the extrusion plate (143) and the side wall of the oil tank (134); a hydraulic oil pipe (145) is connected to the side wall of the oil tank (134); and the other end of the hydraulic oil pipe (145) is connected to an external oil storage tank.

5. A trolley-mounted lifting device for rocket launching according to claim 4, characterized in that: The wheel fixing device comprises a roller (146) and a wheel frame (147) located on both sides of the roller (146), wherein a frame cavity (148) is provided inside one of the wheel frames (147), the roller (146) is connected to a wheel rod (149) extending into the frame cavity (148), one end of the wheel rod (149) located in the frame cavity (148) is connected to a disc (150), one end of the disc (150) located in the frame cavity (148) is connected to a first brake pad (151) and an annular groove frame (152), and the first brake pad (151) is sleeved on the outer annular surface of the annular groove frame (152); A movable disk (153) is axially slidably connected in the frame cavity (148); an annular cavity (154) and a circular cavity (155) are provided on a side of the movable disk (153) close to the first brake pad (151); an annular movable block (156) is slidably connected in the annular cavity (154); a second brake pad (157) is connected on a side of the annular movable block (156) close to the first brake pad (151); a spring is connected between the other side of the annular movable block (156) and the inner wall of the annular cavity (154); an insertion frame (158) is slidably connected in the circular cavity (155); a fixed rod (159) is arranged in an evenly spaced array inside the insertion frame (158); a clamping column (160) is slidably connected to the fixed rod (159); one end of the clamping column (160) is connected to the insertion frame (158) via a spring.

6. A trolley-mounted lifting device for rocket launching according to claim 5, characterized in that: The wheel frame (147) is connected to a hydraulic oil pipe (145), and the hydraulic oil pipe (145) is connected to a side of the frame cavity (148) away from the roller (146); A limiting groove (161) is provided on the side wall of the frame cavity (148), and an end of the limiting groove (161) close to the first brake pad (151) is connected to the movable plate (153) via a spring; A communicating hole (162) is provided between the annular cavity (154) and the circular cavity (155), and the annular cavity (154) is filled with hydraulic oil.

7. The trolley-mounted lifting device for rocket launching according to claim 4, characterized in that: The supporting and fixing device comprises a vehicle stabilizing support frame (168) fixedly connected to the bottom of the traveling vehicle (106), a hydraulic cylinder (163) fixedly connected to the vehicle stabilizing support frame (168), a moving rod (164) and a semicircular fixing block (165), wherein the moving rod (164) is connected to the output end of the hydraulic cylinder (163), the hydraulic cylinder (163) is connected to the oil tank (134) via a hydraulic oil pipe (145), and the outer wall of the moving rod (164) is provided with sliding holes with equal spacing. The sliding grooves (166) are arranged opposite to each other, the inner ring surface of the semicircular fixing block (165) is connected to a protrusion (167) located in the sliding groove (166), the vehicle stabilizing support frame (168) is connected to a support sleeve (169) sleeved on the outer wall of the moving rod (164), the support sleeve (169) is located between the two adjacent semicircular fixing blocks (165), and the semicircular fixing block (165) is connected to an anti-slip pad (170).

8. The trolley-mounted lifting device for rocket launching according to claim 7, characterized in that: An extension tube (171) is connected to a support sleeve (169) at one end away from the hydraulic cylinder (163); one end of the extension tube (171) is connected to a cover plate (172); a lead screw (173) is rotatably connected to the cover plate (172); a reset disk (174) is threadedly connected to the lead screw (173); a spring is connected between the reset disk (174) and the moving rod (164); a guide boss (175) is provided on the inner wall of the extension tube (171); and the reset disk (174) is slidably connected along the guide boss (175).

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