Long deep foundation pit earthwork engineering digging-loading-transporting-unloading integrated complete equipment

Abstract

This utility model discloses an integrated set of equipment for excavation, loading, transportation, and unloading in long and deep foundation pit earthwork projects. It includes a tracked mobile bucket wheel reclaimer, a mobile telescopic conveyor, a prefabricated conveyor corridor, and a tracked mobile placing boom. After excavation, the soil from the tracked mobile bucket wheel reclaimer is fed into the inlet of the mobile telescopic conveyor. The outlet of the mobile telescopic conveyor is connected to the inlet of the prefabricated conveyor corridor, and the outlet of the prefabricated conveyor corridor is connected to the inlet hopper of the tracked mobile placing boom. The prefabricated conveyor corridor is supported by two tracked walking mechanisms near both ends. The tracked mobile placing boom is located outside the pit at the material stockpile site. This utility model eliminates the need for dump trucks for transportation, enabling efficient excavation and stockpiling of soil within deep foundation pits. Furthermore, it offers enhanced safety during transportation and stockpiling. All equipment can move via tracks, allowing for rapid relocation to the next location and improving relocation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of integrated equipment for excavation, loading, transportation and unloading of long and deep foundation pits in soft soil, specifically to integrated equipment for excavation, loading, transportation and unloading of long and deep foundation pits. Background Technology

[0002] In the excavation of long and deep foundation pits for railways, the transportation process faces unique challenges. While an integrated excavator-loader (Chinese patent application number 2024106850234) can achieve highly efficient excavation in open-cut conditions and facilitate long-distance transportation using dump trucks, its efficiency is low for short-distance stockpiling sites (less than 1 km away) using dump trucks for transportation and stockpiling. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an integrated set of equipment for excavation, loading, transportation and unloading of long and deep foundation pit earthwork projects, which can effectively realize the rapid spreading and stockpiling of soil in close proximity, and improve the efficiency of excavation and stockpiling.

[0004] The technical solution adopted by this utility model is as follows: A complete set of equipment integrating excavation, loading, transportation, and unloading for long and deep foundation pit earthwork projects, including a tracked mobile bucket wheel reclaiming device, a mobile telescopic conveyor, a prefabricated conveying corridor, and a tracked mobile placing boom. The tracked mobile bucket wheel reclaiming device is located at the soil in the foundation pit to be excavated. Its excavation execution end excavates the soil and sends it to the conveyor belt on the tracked mobile bucket wheel reclaiming device. The discharge end of the conveyor belt is connected to the feed end of the mobile telescopic conveyor. The discharge end of the mobile telescopic conveyor is connected to the feed end of the prefabricated conveying corridor. The discharge end of the prefabricated conveying corridor is connected to the feed hopper of the tracked mobile placing boom. A tracked walking mechanism is installed at the bottom of the mobile telescopic conveyor, located inside the pit. The prefabricated conveying corridor is supported by two tracked walking mechanisms near both ends. The tracked mobile placing boom is located outside the pit at the material storage area.

[0005] Furthermore, the aforementioned mobile telescopic conveyor employs multiple units connected in series.

[0006] Furthermore, a transition belt conveyor is arranged between the aforementioned tracked mobile placing boom and the assembly conveyor corridor. The transition belt conveyor is connected to the discharge end of the assembly conveyor corridor, and the discharge end of the assembly conveyor corridor is connected to the feed hopper of the tracked mobile placing boom. The transition belt conveyor includes a strip-shaped transition belt conveyor frame, a conveyor belt, a transition belt turntable, and a transition belt track walking mechanism. The conveyor belt is installed on the conveyor frame, and the bottom side of the conveyor frame is hinged to the transition belt turntable near the middle. A transition belt hydraulic cylinder is hinged to the transition belt turntable, and the transition belt hydraulic cylinder is hinged to the conveyor frame to drive the conveyor frame to pitch. The transition belt turntable is installed on the transition belt turntable.

[0007] Furthermore, the aforementioned tracked mobile concrete placing boom includes a feed end conveyor belt, a tracked traveling mechanism, an electric turntable, and a telescopic concrete placing boom. The feed end conveyor belt is installed on one side of the tracked traveling mechanism, the electric turntable is installed on the tracked traveling mechanism, one end of the telescopic concrete placing boom is installed on the electric turntable, and the discharge end of the feed end conveyor belt is connected to the feed end of the telescopic concrete placing boom.

[0008] Furthermore, the discharge end of the aforementioned fabric telescopic belt conveyor is equipped with a mud scraping device, which includes an end mud scraper and a bottom mud scraper. The end mud scraper is made of hard plastic with an arc-shaped cross-section plate and the blade of the arc-shaped cross-section plate is arc-shaped. The end mud scraper is installed at the end of the fabric telescopic belt conveyor through an elastic mechanism and can elastically fit the end of the fabric telescopic belt conveyor. The bottom mud scraper adopts a modular structure and is installed near the bottom surface of the belt end through an elastic mechanism.

[0009] Furthermore, the aforementioned end scraper includes a mudguard that is arched away from the belt side. The cross-section of the mudguard near the belt is a bullet-shaped end structure, which gradually widens from top to bottom. A T-shaped groove is provided at the bottom, and a T-shaped rubber strip is embedded in the T-shaped groove. A strip groove is provided along the length direction of the bottom middle of the T-shaped rubber strip, and a mounting plate is embedded in the strip groove. The mounting plate is connected to the elastic mechanism.

[0010] Furthermore, the aforementioned elastic mechanism includes an end scraper horizontal tube, a rocker arm, an adjusting screw, and a compression spring. The two ends of the end scraper horizontal tube are rotatably connected to two end scraper bases, and one end extends out of the end scraper base and is fixedly connected to an end scraper sleeve. The two end scraper bases are fixedly connected to the side walls of the fabric telescopic belt conveyor frame. The end scraper sleeve is fixedly connected to a rocker arm, which has a rocker arm strip-shaped through hole arranged along its length. The rocker arm strip-shaped through hole moves through the adjusting screw. One end of the adjusting screw is hinged to a hinge shaft, and the other end is connected to an adjusting nut. The hinge shaft is horizontally and vertically fixedly connected to the top of the end scraper base. The adjusting screw is sleeved with a compression spring, which is located between the adjusting nut and the rocker arm.

[0011] Furthermore, the aforementioned bottom scraper includes a scraper, a scraper mounting plate, and a connecting plate. The scraper is made of hard rubber and elastically abuts against the belt. A T-shaped part is provided at the lower end of the scraper along its length. The upper end of the scraper mounting plate is provided with an embedded T-shaped groove. The T-shaped part is embedded into the embedded T-shaped groove by means of expansion. The scraper mounting plate is fixed to multiple rubber elastic blocks by multiple spaced connecting plates. The multiple rubber elastic blocks are fixedly connected to a row of multiple cantilever plates. Each cantilever plate is fixedly connected to the elastic mechanism.

[0012] Furthermore, the connecting plate has a horizontal trapezoidal block on the side facing the rubber elastic block, and a trapezoidal groove is provided on the side of the rubber elastic block that abuts the connecting plate. The trapezoidal block is embedded in the matching trapezoidal groove. The connecting plate has a connecting screw on the side facing the trapezoidal block. The connecting screw passes through the trapezoidal block, the rubber elastic block and the cantilever plate and is locked with a lock nut.

[0013] Furthermore, the aforementioned elastic mechanism two includes a bottom scraper horizontal tube with two sleeves fixedly connected to both ends. The two sleeves are movably embedded into the vertical U-grooves of two inverted U-shaped seats. The tops of the two U-shaped seats are fixedly connected to the side walls of the frame. An adjusting screw two is fixedly connected to the top of the sleeves. The adjusting screw two passes through a horizontal plate set on the upper part of the U-shaped seat and is connected to an adjusting nut two. A compression spring two is installed between the adjusting nut two and the horizontal plate. The compression spring two is sleeved on the adjusting screw two.

[0014] The beneficial effects of this utility model are as follows: Compared with the prior art, the effects of this utility model are as follows: (1) This utility model uses a tracked mobile bucket wheel material handling device to excavate soil in a deep foundation pit and then send it into a mobile telescopic conveyor. The mobile telescopic conveyor transports the soil to the prefabricated conveying corridor to transport the soil from inside the foundation pit to outside the foundation pit. A tracked mobile concrete placing machine is used to spread the soil in the prefabricated conveying corridor to the soil stockpile. No muck truck is needed for transportation. This can achieve efficient excavation and stockpiling of soil in a deep foundation pit. The transportation and stockpiling safety is higher. Moreover, each piece of equipment can move by track, which can quickly move to the next location and improve the efficiency of the transfer. (2) Using multiple mobile telescopic conveyors connected in series can increase the distance of the conveying area in the foundation pit and reduce equipment movement; (3) Setting up a transition belt conveyor is more conducive to transporting soil from the prefabricated conveyor corridor to the tracked mobile concrete placing machine; using an oversized belt turntable and a transition belt hydraulic cylinder to realize the rotation position docking and pitch angle docking of the transition belt conveyor, improving the docking installation efficiency, and being able to quickly adapt to changes on site, thus improving the equipment's adaptability. (4) The electric turntable-driven telescopic conveyor belt for placing materials can stack materials at different heights and angles. After stacking, the material is compacted in layers by a road roller and then stacked again. The feed end conveyor belt is set up to facilitate docking with other equipment, improve docking efficiency, and balance the center of gravity of the tracked mobile placing machine, which is more conducive to walking control and stable placement operation. (5) The curved blade with an arc-shaped cross-section structure can better fit the belt (with rollers at the end as internal support) under the action of the elastic mechanism, thereby achieving better unloading and preliminary scraping. On the other hand, the curved blade (arc cross-section in the length direction) avoids scraping the belt and causing belt damage, thus improving the service life of the belt. The bottom scraper is set to further clean the remaining mud after the initial scraping of the unloading at the end. The elastic mechanism is used for installation, which can elastically abut against the belt. The dual scraping method makes the belt mud removal effect better. Attached Figure Description

[0015] Figure 1 A schematic diagram of an integrated set of equipment for excavation, loading, transportation and unloading of long and deep foundation pits; Figure 2 This is a schematic diagram of a tracked mobile concrete placing boom. Figure 3 This is a side view of the transition belt conveyor. Figure 4 This is a top view of the transition belt conveyor (with the belt removed). Figure 5 A schematic diagram of the installation structure of the sludge scraper; Figure 6 This is a schematic diagram of the end scraper installation structure; Figure 7 This is a side view of the end scraper structure. Figure 8 This is a side sectional view of the end scraper. Figure 9 This is a schematic diagram of the front view of one end of the end scraper. Figure 10 This is a schematic diagram of the installation structure of the bottom scraper. Figure 11 This is a side view of the bottom scraper structure. Figure 12 A schematic diagram of the front view of one end of the bottom scraper; Figure 13 This is a front view schematic diagram of the bottom scraper structure; Figure 14 This is a top view of the feed hopper structure. Figure 15 This is a side view of the feed hopper structure. Detailed Implementation

[0016] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1: As Figures 1-15As shown, the integrated excavation-loading-transportation-unloading equipment for long and deep foundation pit earthwork projects includes a tracked mobile bucket wheel reclaimer 1, a mobile telescopic conveyor 2, a prefabricated conveyor corridor 3, and a tracked mobile concrete placing boom 4. The tracked mobile bucket wheel reclaimer 1 is located at the soil in the foundation pit to be excavated. Its excavation execution end excavates the soil and feeds it onto the conveyor belt on the tracked mobile bucket wheel reclaimer 1. The discharge end of the conveyor belt is connected to the feed end of the mobile telescopic conveyor 2, and the discharge end of the mobile telescopic conveyor 2 is connected to... The prefabricated conveyor 3 has a belt conveyor at its inlet end and a discharge end connected to the feed hopper of the tracked mobile concrete placing machine 4. The bottom of the mobile telescopic conveyor 2 is equipped with a tracked walking mechanism 5, which is located inside the pit. The prefabricated conveyor 3 is supported by two tracked walking mechanisms 6 near both ends. The two tracked walking mechanisms 6 are located inside and outside the deep pit, respectively. The tracked mobile concrete placing machine 4 is located in the material stacking area outside the pit.

[0018] The mobile telescopic conveyor 2 is constructed by multiple units connected in series, enabling long-distance transmission and excavation location transfer. The structures of the tracked mobile bucket wheel material handling device 1, the mobile telescopic conveyor 2, and the prefabricated conveyor corridor 3 are all based on the mobile telescopic conveyor 2 in Chinese patent application No. 2024106850234. The lengths of the mobile telescopic conveyor 2 and the prefabricated conveyor corridor 3 are set as needed. The lengths of the mobile telescopic conveyor and the prefabricated conveyor corridor are changed both inside and outside the foundation pit by adding or removing mobile telescopic conveyors and prefabricated conveyor corridors.

[0019] To facilitate the transfer of soil from the prefabricated conveyor corridor to the tracked mobile placing boom, a transition belt conveyor 7 is installed between the tracked mobile placing boom 4 and the prefabricated conveyor corridor 3. The transition belt conveyor 7 is connected to the discharge end of the prefabricated conveyor corridor 3, and the discharge end of the prefabricated conveyor corridor 3 is connected to the feed hopper of the tracked mobile placing boom 4. The transition belt conveyor 7 includes a strip-shaped transition belt conveyor frame 7001, a conveyor belt 7002, and a transition belt turntable 7003. The conveyor belt 7002 is mounted on the conveyor frame 7001, and the bottom side of the conveyor frame 7001 is hinged to the transition belt turntable 7003 near the middle. A transition belt hydraulic cylinder 7005 is hinged to the transition belt turntable 7003, and the transition belt hydraulic cylinder 7005 is hinged to the conveyor frame 7001 to drive the conveyor frame 7001 to pitch. The transition belt turntable 7003 is mounted on the transition belt turntable 7004. The transition belt conveyor is more conducive to transporting soil from prefabricated conveyor corridors to tracked mobile concrete placing booms. A large belt turntable and transition belt hydraulic cylinders are used to achieve rotational and pitch angle docking of the transition belt conveyor, improving docking and installation efficiency and allowing for rapid adaptation to site changes, thus enhancing equipment adaptability. To facilitate docking with stockpiles at more distant locations, multiple mobile telescopic conveyors can be connected in series for coordinated use. These multiple telescopic conveyors are arranged between the tracked mobile concrete placing boom 4 and the transition belt conveyor 7. The conveyor belt 7002 includes a drive roller and a driven roller installed at both ends of the transition belt conveyor frame 7001. The drive roller is connected to a power mechanism that drives its rotation. Belts are fitted onto the drive roller and the driven roller. A row of idlers and a row of auxiliary support rollers are spaced apart between the drive roller and the driven roller, respectively, and are installed on the upper and lower parts of the transition belt conveyor frame 7001.

[0020] The tracked mobile concrete placing boom 4 includes a feed end conveyor belt 4010, a tracked walking mechanism 4020, an electric turntable 4030, and a telescopic concrete placing boom 4040. The feed end conveyor belt 4010 is installed on one side of the tracked walking mechanism 4020, the electric turntable 4030 is installed on the tracked walking mechanism 4020, and one end of the telescopic concrete placing boom 4040 is installed on the electric turntable 4030. The discharge end of the feed end conveyor belt 4010 is connected to the feed end of the telescopic concrete placing boom 4040. The telescopic concrete placing boom driven by the electric turntable can achieve material stacking at different heights and angles. After stacking, the material is compacted in layers by a road roller before further stacking. The feed end conveyor belt facilitates docking with other equipment and improves docking efficiency. This also helps balance the center of gravity of the tracked mobile concrete placing boom, making it easier to control movement and ensure smooth operation. An X-frame 4060 is installed on the electric turntable 4030. One end of the telescopic frame of the telescopic conveyor belt 4040 is hinged to the X-frame 4060. A Y-frame 4080 is hinged to the far end of the primary frame of the telescopic frame, away from the hinge point. The Y-frame 4080 is hinged to the X-frame 4060 via a pitch hydraulic cylinder 4050, enabling the telescopic frame to pitch, and in conjunction with telescopic extension and rotation, further facilitating material stacking. One end of the conveyor belt frame of the feed end 4010 is hinged to the X-frame 4060, and a hydraulic cylinder 4070 is installed at the bottom to drive its pitch, enabling angle adjustment at the feed end, thus facilitating docking.

[0021] To achieve belt desludge removal on the fabric telescopic belt conveyor 4040, a scraping device is installed at the discharge end of the conveyor. This scraping device includes an end scraper 40401 and a bottom scraper 40402. The end scraper 40401 is made of rigid plastic with an arc-shaped cross-section. The blade of the arc-shaped cross-section is arc-shaped. The end scraper is installed at the end of the fabric telescopic belt conveyor 4040 via an elastic mechanism and can elastically fit against the belt end. The bottom scraper 40402 adopts a modular structure and is installed near the bottom surface of the belt end via an elastic mechanism. It also features an arc-shaped cross-section and arc-shaped blade. On one hand, it... Under the action of the elastic mechanism, the arc-shaped cross section can better fit onto the belt (with rollers at the end as internal support), thereby achieving better unloading and initial scraping. On the other hand, the arc-shaped blade (arc-shaped cross section in the length direction) avoids scraping with the belt, which would damage the belt and improve the service life of the belt. The bottom scraper is set to further thoroughly clean the remaining mud after the initial scraping at the end of the unloading. It is installed with an elastic mechanism that can elastically abut against the belt. The dual scraping method makes the belt mud removal effect better. The arc-shaped blade abuts against the semi-circle of the belt at the output end of the 4040 fabric telescopic belt conveyor (with roller support inside).

[0022] The end scraper 40401 includes a mudguard 101 with an outward arch away from the belt side. The mudguard 101 is made of hard plastic. The cross-section of the mudguard 101 near the belt is a bullet-shaped end structure, which gradually widens from top to bottom. A T-shaped groove 102 is provided at the bottom, and a T-shaped rubber strip 103 is embedded in the T-shaped groove 102. A strip groove 104 is provided along the length of the bottom middle of the T-shaped rubber strip 103, and a mounting plate 105 is embedded in the strip groove 104. The mounting plate 105 is connected to the elastic mechanism 1 and adopts a blade structure with an arc-shaped cross-section of the bullet head, which can achieve elastic tangential contact with the belt, increase the contact area, and avoid damage to the belt. The mudguard is installed on the elastic mechanism 1 by using the T-shaped groove, T-shaped rubber strip and mounting plate. On the one hand, the T-shaped rubber strip plays a role in damping vibration and preventing the blade tip from chipping. It also prevents damage to the hard plastic mudguard during connection. On the other hand, it facilitates quick positioning for installation and removal, and is convenient for replacement and maintenance.

[0023] Specifically, the elastic mechanism includes an end scraper horizontal tube 106, a rocker arm 109, an adjusting screw 111, and a compression spring 114. The end scraper horizontal tube 106 is rotatably connected to two end scraper bases 107 at both ends, with one end extending beyond the end scraper base 107 and fixedly connected to an end scraper sleeve 108. The end scraper sleeve 108 is movably fitted into a suitable position on the end scraper horizontal tube 106 and then locked with a locking screw 115. The two end scraper bases 107 are fixedly connected to the side walls of the fabric telescopic belt conveyor 4040. The end scraper sleeve 108 is fixedly connected to a rocker arm 109. The rocker arm 109 has a rocker arm strip-shaped through hole 110 arranged along its length. The rocker arm strip-shaped through hole 110 movably passes through the adjusting screw 111, adjusting... One end of the screw 111 is hinged to the hinge shaft 112, and the other end is connected to the adjusting nut 113. The hinge shaft 112 is horizontally and vertically fixed to the top of the end scraper base 107. The adjusting screw 111 is sleeved with a compression spring 114, which is located between the adjusting nut 113 and the rocker arm 109. The elastic mechanism adopts the elastic structure of the compression spring and the rocker arm drive for compression, which can further realize the elastic contact belt of the mudguard to fit tightly, and is also more conducive to the blade scraping off soft mud. Moreover, the adjusting nut, together with the adjusting screw, the rocker arm strip through hole and the hinge shaft, can also realize the adjustment of the pressure, so as to achieve the best pressure combination. For different application scenarios (wet mud, dry mud, river sand, etc.), the pressure can be changed.

[0024] The bottom scraper 40402 includes a scraper 201, a scraper mounting plate 202, and a connecting plate 203. The scraper 201 is made of hard rubber and elastically abuts against the belt 301. A T-shaped portion 204 is provided at the lower end of the scraper 201 along its length. A second T-shaped groove 205 is provided at the upper end of the scraper mounting plate 202. The T-shaped portion 204 is inserted into the second T-shaped groove 205 by an expansion mechanism. For reliable locking, a set screw is provided on the side of the T-shaped groove 205, with its inner end abutting against the T-shaped portion 204 to further lock it in place. The scraper mounting plate 202 is fixed to multiple rubber elastic blocks 206 by multiple spaced connecting plates 203. The scraper is connected to a row of multiple cantilever plates 207, each of which is fixedly connected to the elastic mechanism 2. The installation method of T-slot 205 and T-shaped part 204 facilitates replacement, and the closer distance between the scraper mounting plate and the blade is, the better the rigidity of the blade is ensured, resulting in better sludge scraping effect. The segmented and spaced connecting plate structure ensures the reliability of the connection while reducing the weight of the sludge scraping mechanism. On the other hand, the segmented arrangement of elastic rubber blocks enables better elasticity between the scraper mounting plate and the cantilever plate, which is more conducive to buffering and protecting the scraper. The spaced arrangement also facilitates material leakage and avoids excessive accumulation on the elastic rubber blocks, which affects the friction between the belt and the material.

[0025] To facilitate accurate positioning and connection between the scraper mounting plate and the elastic rubber block, a horizontal trapezoidal block 216 is provided on the side of the connecting plate 203 facing the elastic rubber block 206. A trapezoidal groove 217 is provided on the side of the rubber elastic block 206 that mates with the connecting plate 203. The trapezoidal block 216 is embedded into the matching trapezoidal groove 217. A connecting screw 218 is provided on the side of the connecting plate 203 facing the trapezoidal block 216. The connecting screw 218 passes through the trapezoidal block 216, the elastic rubber block 206, and the cantilever plate 207 and is locked with a locking nut 219. The matching gradient trapezoidal groove 217 is used to position the trapezoidal block 216, which can achieve better positioning and facilitate accurate positioning after installation, disassembly, and replacement. The bottom scraping mechanism can scrape off soil that is easy to stick during the transportation of soft soil, so as to avoid affecting the belt operation and sticking to the auxiliary support roller.

[0026] Specifically, the second elastic mechanism includes a bottom scraper horizontal tube 208, with two sleeves 209 fixedly connected to both ends of the bottom scraper horizontal tube 208. The two sleeves 209 are movably embedded into the vertical U-grooves 211 of two inverted U-shaped seats 210. The tops of the two U-shaped seats 210 are fixedly connected to the side walls of the frame. An adjusting screw 212 is fixedly connected to the top of the sleeves 209. The adjusting screw 212 passes through the horizontal plate 214 set on the upper part of the U-shaped seat 210 and is connected to an adjusting nut 213. A compression spring 215 is installed between the adjusting nut 213 and the horizontal plate 214. The compression spring 215 is sleeved on the adjusting screw 212. The U-shaped seat 210 includes an inverted U-shaped plate, two side walls, and a top plate. The inverted U-shaped plate is provided with an inverted vertical U-shaped groove. The slot 211 has auxiliary guide side panels on both sides. The top plate is fixedly connected to the top of the two side panels and close to the top of the inverted U-shaped plate. The sleeve 209 is movably sleeved on the bottom scraper horizontal tube 208 and fixed with two sleeve set screws 220. The screws of the two sleeve set screws 220 rest on the two side panels. The two sleeve set screws can achieve axial positioning and sleeve locking. The installation adopts a compression spring elastic structure, which can further realize the elastic contact of the scraper. The sleeve connection on both sides also facilitates the adjustment of the angle between the scraper and the belt surface, which is more conducive to the blade scraping off soft soil. The two ends of the horizontal tube are inserted into the U-shaped groove, with screws and nuts, which facilitates the rapid adjustment of the vertical position and the stable connection of the horizontal tube.

[0027] In summary, installing end scrapers allows for the initial scraping of the transported soft soil. With the belt at this end abutting against the rollers, and the curved cross-section of the scraper ensuring proper contact, the scraped soil can be fed into the feed hopper of the next device. This reduces the workload of the bottom scraper and also prevents it from catching fallen soil (which may not enter the feed hopper due to its distance from the end). This minimizes the impact on belt operation and prevents soil from sticking to the auxiliary support rollers. Furthermore, the use of a spring-loaded elastic structure at both ends and a rocker arm drive for clamping further enhances the tangential elastic contact of the scrapers, making it easier for the blades to scrape off soft soil.

[0028] Feed hoppers 313 are installed on the belt conveyor frame at the feeding end of the feed end conveyor belt 4010 and the fabric telescopic belt conveyor 4040. The outlet width of the feed hopper 313 is not greater than the belt width of the feed end conveyor belt 4010 and the fabric telescopic belt conveyor 4040. The width limitation is to prevent the feed material from completely entering the belt and to prevent spillage, which would affect the operation of the belt.

[0029] The feed hopper 313 includes two first wall panels 3134 in the front-to-back direction and two second wall panels 3135 in the left-to-right direction. The two first wall panels 3134 are fixedly connected to the front and rear ends of the two second wall panels 3135 respectively, forming an open structure with a larger upper end and a smaller lower end. The lower ends of the two first wall panels 3134 and the two second wall panels 3135 are fixedly connected to the bottom plate 3136 of the hopper. The bottom plate 3136 of the hopper has a discharge port of the same size as the lower end of the open structure in the middle. The feed hopper 313 has a frame 3131 near the bottom. The frame 3131 is fixedly connected by a longitudinal rod and multiple transverse rods. The frame is installed at the feed hopper. Under the loosening effect of the frame, the soil fed in can be evenly sprinkled onto the belt, which is conducive to material discharge and avoids clogging of the feed hopper outlet. It can also buffer the soil fed in, avoiding direct impact on the lifting conveyor belt due to excessive impact force, which would easily damage the lifting conveyor belt under long-term impact.

[0030] Specifically, a rubber baffle 3132 is provided around the feed hopper 313 near the discharge port. The rubber baffle 3132 can maintain elastic contact with the material storage hopper. The use of the elastic contact rubber baffle 3132 can completely drop the fed soil into the belt, reduce the probability of side leakage, reduce the side leakage of soil falling onto the belt roller or electric equipment and affecting the operation of the equipment, and improve the stability and safety of the belt equipment operation. In addition, in order to allow the material to fall more smoothly into the belt feeder, an electromagnetic vibrator 3133 is installed on the side wall of the feed hopper 313; a spray pipe is installed around the top of the feed hopper 313 to suppress dust when there is too much dust.

[0031] A first reinforcing rib 3137 and a second reinforcing rib 3138 are respectively provided between the hopper bottom plate 3136 and the first wall plate 3134 and the second wall plate 3135. The top of the first wall plate 3134 and the second wall plate 3135 are bent outwards with short horizontal plates. The short horizontal plates serve to reinforce the wall plates and facilitate the installation of the dust suppression pipe for spraying. The bottom of the first wall plate 3134 and the second wall plate 3135 are bent outwards to facilitate welding with the hopper bottom plate and improve the reliability of the connection. The first reinforcing rib 3137 and the second reinforcing rib 3138 are provided with weight-reducing holes, which can reduce weight while ensuring rigidity and strength. The front and rear sides of the hopper bottom plate 3136 are respectively provided with bolt holes that connect to the top of the conveyor frame of the feed end conveyor belt 4010 and the fabric telescopic belt conveyor 4040. The bolt holes are strip-shaped through holes in the front and rear directions, which facilitates the adjustment of the front and rear position of the feed hopper. The adjustment is convenient and quick.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A long, large and deep foundation pit earthwork excavation-loading-transportation-unloading integrated complete equipment, characterized in that: The device includes a tracked mobile bucket wheel material handling device (1), a mobile telescopic conveyor (2), an assembled conveyor corridor (3), and a tracked mobile concrete placing machine (4). The tracked mobile bucket wheel material handling device (1) is located at the soil of the foundation pit to be excavated. Its excavation execution end excavates the soil and sends it into the conveyor belt on the tracked mobile bucket wheel material handling device (1). The discharge end of the conveyor belt is connected to the feed end of the mobile telescopic conveyor (2). The discharge end of the mobile telescopic conveyor (2) is connected to the feed end of the assembled conveyor corridor (3). The discharge end of the assembled conveyor corridor (3) is connected to the feed hopper of the tracked mobile concrete placing machine (4). The bottom of the mobile telescopic conveyor (2) is equipped with a tracked walking mechanism (5). The tracked walking mechanism (5) is located inside the pit. The assembled conveyor corridor (3) is supported by two tracked walking mechanisms (6) near both ends. The tracked mobile concrete placing machine (4) is located outside the pit in the material stacking area.

2. The long, large and deep foundation pit earthwork excavation-hauling-transporting-discharging integrated complete equipment according to claim 1, characterized in that: The mobile telescopic conveyor (2) uses multiple units connected in series.

3. The long, large and deep foundation pit earthwork excavation-hauling-transporting-discharging integrated complete equipment according to claim 2, characterized in that: A transition belt conveyor (7) is also arranged between the tracked mobile placing boom (4) and the assembly conveyor corridor (3). The transition belt conveyor (7) is connected to the discharge end of the assembly conveyor corridor (3), and the discharge end of the assembly conveyor corridor (3) is connected to the feed hopper of the tracked mobile placing boom (4). The transition belt conveyor (7) includes a strip-shaped transition belt conveyor frame (7001), a conveyor belt (7002), a transition belt turntable (7003), and a transition belt track walking mechanism (7004). 04), the conveyor frame (7001) is equipped with a conveyor belt (7002). The bottom side of the conveyor frame (7001) is hinged to the transition belt turntable (7003) near the middle. The transition belt turntable (7003) is hinged to a transition belt hydraulic cylinder (7005). The transition belt hydraulic cylinder (7005) is hinged to the conveyor frame (7001) to drive the conveyor frame (7001) to pitch. The transition belt turntable (7003) is installed on the transition belt turntable (7003).

4. The long, large and deep foundation pit earthwork excavation-hauling-transporting-discharging integrated complete equipment according to claim 2, characterized in that: The tracked mobile concrete placing boom (4) includes a feed end conveyor belt (4010), a tracked walking mechanism (4020), an electric turntable (4030), and a concrete placing telescopic belt conveyor (4040). The feed end conveyor belt (4010) is installed on one side of the tracked walking mechanism (4020), the electric turntable (4030) is installed on the tracked walking mechanism (4020), one end of the concrete placing telescopic belt conveyor (4040) is installed on the electric turntable (4030), and the discharge end of the feed end conveyor belt (4010) is connected to the feed end of the concrete placing telescopic belt conveyor (4040).

5. The long, large and deep foundation pit earthwork excavation-hauling-transporting-discharging integrated complete equipment according to claim 4, characterized in that: The discharge end of the fabric telescopic belt conveyor (4040) is equipped with a scraping device, which includes an end scraper (40401) and a bottom scraper (40402). The end scraper (40401) is made of hard plastic with an arc-shaped cross-section. The blade of the arc-shaped cross-section is arc-shaped. The end scraper is installed at the end of the fabric telescopic belt conveyor (4040) through an elastic mechanism and can be elastically attached to the end of the belt of the belt conveyor. The bottom scraper (40402) adopts a modular structure and is installed on the bottom surface near the end of the belt through an elastic mechanism.

6. The long, large and deep foundation pit earthwork excavation-hauling-transporting-discharging integrated complete equipment according to claim 5, characterized in that: The end scraper (40401) includes a mudguard (101) that is far from the belt side arch. The cross section of the mudguard (101) near the belt is a bullet-shaped end structure, which gradually widens from top to bottom. A T-shaped groove (102) is provided at the bottom. A T-shaped rubber strip (103) is embedded in the T-shaped groove (102). A strip groove (104) is provided along the length direction of the bottom middle of the T-shaped rubber strip (103). A mounting plate (105) is embedded in the strip groove (104). The mounting plate (105) is connected to the elastic mechanism.

7. The long, large and deep foundation pit earthwork excavation-hauling-transporting-discharging integrated complete equipment according to claim 6, characterized in that: The elastic mechanism includes an end scraper horizontal tube (106), a rocker arm (109), an adjusting screw (111), and a compression spring (114). The two ends of the end scraper horizontal tube (106) are rotatably connected to two end scraper bases (107), and one end extends out of the end scraper base (107) and is fixedly connected to an end scraper sleeve (108). The two end scraper bases (107) are fixedly connected to the side walls of the fabric telescopic belt conveyor (4040). The end scraper sleeve (108) is fixedly connected to a rocker arm (109). (109) is provided with a rocker arm strip-shaped through hole (110) arranged along its length direction. The rocker arm strip-shaped through hole (110) moves through the adjusting screw (111). One end of the adjusting screw (111) is hinged to the hinge shaft (112), and the other end is connected to the adjusting nut (113). The hinge shaft (112) is horizontally and vertically fixedly connected to the top of the end scraper base (107). The adjusting screw (111) is sleeved with a compression spring (114), which is located between the adjusting nut (113) and the rocker arm (109). 8.The long, large and deep foundation pit earthwork excavation-hauling-transporting-discharging integrated complete equipment according to claim 5, characterized in that: The bottom scraper (40402) includes a scraper (201), a scraper mounting plate (202), and a connecting plate (203). The scraper (201) is made of hard rubber and elastically abuts against the belt (301). The lower end of the scraper (201) is provided with a T-shaped part (204) along its length. The upper end of the scraper mounting plate (202) is provided with an embedded T-shaped groove (205). The T-shaped part (204) is embedded into the embedded T-shaped groove (205) by means of expansion. The scraper mounting plate (202) is fixed to multiple rubber elastic blocks (206) by multiple spaced connecting plates (203). The multiple rubber elastic blocks (206) are fixedly connected to a row of multiple cantilever plates (207). Each cantilever plate (207) is fixedly connected to the elastic mechanism.

9. The integrated set of equipment for excavation, loading, transportation and unloading of long and deep foundation pits as described in claim 8, characterized in that: A horizontal trapezoidal block (216) is provided on the side of the connecting plate (203) facing the rubber elastic block (206). A trapezoidal groove (217) is provided on the side of the rubber elastic block (206) that is connected to the connecting plate (203). The trapezoidal block (216) is embedded in the matching trapezoidal groove (217). A connecting screw (218) is provided on the side of the connecting plate (203) facing the trapezoidal block (216). The connecting screw (218) passes through the trapezoidal block (216), the rubber elastic block (206) and the cantilever plate (207) and is then locked with a locking nut (219).

10. The integrated set of equipment for excavation, loading, transportation and unloading of long and deep foundation pits as described in claim 8, characterized in that: The second elastic mechanism includes a bottom scraper tube (208). Two sleeves (209) are fixedly connected to both ends of the bottom scraper tube (208). The two sleeves (209) are movably embedded in the vertical U-slots (211) of two inverted U-shaped seats (210). The tops of the two U-shaped seats (210) are fixedly connected to the side walls of the frame (302). The tops of the sleeves (209) are fixedly connected to the second adjusting screw (212). The second adjusting screw (212) passes through the horizontal plate (214) set on the upper part of the U-shaped seat (210) and is connected to the second adjusting nut (213). A second compression spring (215) is installed between the second adjusting nut (213) and the horizontal plate (214). The second compression spring (215) is sleeved on the second adjusting screw (212).

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