A floating crawler submerged boat-type excavator

Abstract

The present application relates to the technical field of construction excavation equipment for water environment management, and specifically discloses a floating crawler-type submerged boat-type excavator, comprising a hull, on which an excavator body is fixedly mounted, and a crawler-type traveling body disposed below the hull. The hull is floatingly connected to the crawler-type traveling body via a floating lifting connecting rod assembly, so that the hull can be raised and lowered according to the depth of the water. The crawler-type traveling body is mounted with a load-bearing frame, and a load-bearing and leveling device is disposed on the top of the load-bearing frame. A linkage shaft and a stabilizing block are disposed on the hull above the load-bearing and leveling device. Before the excavation operation on the water, the hydraulic cylinder piston shaft pushes the linkage shaft down to the bottom of the stabilizing block and abuts against the load-bearing and leveling device, so that the hull is grounded on the crawler chassis instead of floating on the water surface. The entire machine is grounded, and the hull for deep-water operations will not be swayed or bumped by the excavation force, ensuring that the entire machine is as stable and reliable as when operating on land.

Description

Technical Field

[0001] The present application relates to the technical field of construction excavation equipment for water environment management, and in particular to a crawler-type submerged boat-type excavator that floats up and down. Background Art

[0002] One type of excavator currently used on the market relies on increasing the volume of its own crawler pontoons to help it float on the water surface during operation. This type of excavator lacks an underwater propulsion system and relies on the back and forth movement of the digging arm to paddle and float on the water surface, which has limited maneuverability. In addition, because it only relies on the crawler pontoons to help it float on the water surface, once the water depth exceeds the crawler depth, the excavator will float on the water surface, and its operating force will make it difficult for the equipment to remain stable, affecting the operation, and even causing the entire machine to capsize and sink. In order to increase the buoyancy, the only way is to increase the pontoons to help it float, which will inevitably increase the size of the equipment, increasing the manufacturing cost and bringing difficulties to the transfer operation and transportation. Its water operation lacks maneuverability, poor effect, low efficiency, high manufacturing and operating costs, and is only suitable for operations in shallow water areas slightly exceeding the limited water depth of the crawler.

[0003] The other mode is that the excavator is directly fixed on the work vessel for operation. In this mode, one excavator needs to be equipped with an work vessel of hundreds of tons. Only a large-tonnage vessel can ensure the stability of the excavator's operation. It is equivalent to two devices doing the work of one device, which is more expensive, has worse operational maneuverability, and is inefficient. Summary of the Invention

[0004] This application proposes a floating crawler-type submerged boat-type excavator, which has the advantages of high stability and low cost in water excavation operations, and is used to solve the problems of poor stability, poor maneuverability, poor effect, low efficiency and high cost of existing water environment management excavation equipment.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a floating crawler-type submerged boat-type excavator, comprising a hull, an excavator body fixedly mounted on the hull, a crawler-type traveling body provided under the hull, a load-bearing frame fixedly mounted on the top of the crawler-type traveling body, four load-bearing and leveling devices provided on the top of the load-bearing frame near its four corners, a linkage shaft located directly above the load-bearing and leveling device provided on the hull, the bottom end of the linkage shaft extending to the bottom of the hull and fixedly connected to a stabilizing block, the linkage shaft driven longitudinally by a hydraulic cylinder provided on the top of the hull, and when the excavator body performs water excavation operations, the piston shaft of the hydraulic cylinder pushes the linkage shaft downward until the bottom of the stabilizing block abuts against the top of the load-bearing and leveling device.

[0006] Furthermore, the load-bearing frame is formed by welding a plurality of longitudinal beams and transverse beams, and both the longitudinal beams and the transverse beams adopt a square tube hollow structure.

[0007] Furthermore, four pin sleeves are provided on the top of the load-bearing frame, and the four pin sleeves are respectively close to the four corners of the load-bearing frame, and the pin sleeves are located on the inner side of the load-bearing stabilization device. A balancing groove is opened on the hull above the four pin sleeves, and a floating lifting connecting rod assembly is movable in the balancing groove, and the bottom end of the floating lifting connecting rod assembly is fixedly connected to the pin sleeve.

[0008] Furthermore, the inner diameter of the balancing groove increases evenly from the middle to the bottom and from the middle to the top, and the middle part of the balancing groove fits in with the outer side of the floating lifting connecting rod assembly. The floating lifting connecting rod assembly is provided with a number of equally spaced pin holes, and the number of pin holes is not less than two. A limiting device is fixedly installed on the top of the hull to lock the pin holes of the floating lifting connecting rod assembly.

[0009] Furthermore, the limiting device includes a group of limiting plates, and the number of limiting plates in a group is two. The two limiting plates are both arranged on one side of the balance groove on the hull. The limiting plates can be fixed to the hull by bolts. A sliding plate is movably sleeved in the slideway formed between the two limiting plates. A U-shaped block is fixedly installed on one side of the top of the sliding plate. The U-shaped block can be fixed to the sliding plate by bolts. A limiting pin is movably sleeved between the two vertical plates of the U-shaped block, and one end of the limiting pin can be clamped with the pin hole on the floating lifting connecting rod assembly.

[0010] Furthermore, a number of air bags are provided on the inner side of the load-bearing frame, and the hydraulic cylinder is configured as an excavation operation support hydraulic cylinder or a maintenance operation extension hydraulic cylinder, wherein the excavation operation support hydraulic cylinder is used to drive the stabilizing block and the load-bearing leveling device at the bottom end of the linkage shaft during excavation operations, and when the linkage shaft is used to repair the crawler-type traveling body, it drives the stabilizing block at the bottom end of the linkage shaft to move to the bottom of the water and push the excavator body and the crawler-type traveling body out of the water as a whole.

[0011] Furthermore, the load-bearing and stabilizing device includes a load-bearing column fixedly mounted on the load-bearing frame, the middle part of the load-bearing column is designed as a through groove, and the inner diameter of the through groove in the middle of the load-bearing column is greater than the outer diameter of the stabilizing block, the top of the load-bearing column is provided with a rotating plate that can be rotatably opened, the top of the rotating plate is fixedly installed with a buffer shock-absorbing pad, and a passive rotating column is provided on one side of the top of the rotating plate, the hull is provided with an adjustment shaft located directly above the passive rotating column, the bottom end of the adjustment shaft is fixedly connected with an adjustment clamping shaft, the bottom end of the adjustment clamping shaft is movably clamped with the top of the passive rotating column, and after the buffer shock-absorbing pad moves to fit the bottom of the hull, the adjustment clamping shaft is just clamped with the passive rotating column.

[0012] Furthermore, the cavity compartments at both ends of the hull are filled with buoyancy-aiding foam, and wave-proof baffles are installed at both ends of the hull. A drainage trough is opened on the hull, and the drainage trough is located at the bottom of the gap at both ends of the excavator body on the hull. A sewage discharge control rod is movably mounted in the drainage trough, and a sealing plug is fixedly connected to the bottom end of the sewage discharge control rod, and the sealing plug is sealingly sleeved with the bottom of the drainage trough. Push scrapers are movably provided at both ends of the hull, and the push scrapers are driven up and down by a scraping operation hydraulic cylinder arranged on the load-bearing frame.

[0013] Furthermore, the hydraulic cylinder includes an excavation operation support hydraulic cylinder and a maintenance operation extension hydraulic cylinder, the linkage shaft and the floating lifting connecting rod assembly are staggered, and the linkage shaft is in the shape of a U-shaped shaft, and the two vertical shafts of the linkage shaft are movably connected with the piston shafts of the excavation operation support hydraulic cylinder and the maintenance operation extension hydraulic cylinder respectively, and a rotating plate is connected between one end of the cylinder body of the excavation operation support hydraulic cylinder and one end of the cylinder body of the maintenance operation extension hydraulic cylinder through a rotating shaft, and one end of the rotating shaft connecting the rotating plate and the maintenance operation extension hydraulic cylinder is sleeved with a side surface of the U-shaped limit frame. Then, the hull is provided with a U-shaped limit frame located on one side of the linkage shaft, and the three vertical plates of the U-shaped limit frame are all located on the outside of the linkage shaft. A placement groove away from one side of the U-shaped limit frame is opened on the top of the hull, and a positioning slot is provided at one end of the placement groove away from the linkage shaft. The excavation operation support hydraulic cylinder and the maintenance operation extension hydraulic cylinder are both fixedly installed with a positioning assembly close to one end of the piston shaft, and the positioning assembly includes a fixed connecting plate, and one side of the fixed connecting plate is fixedly connected to a retaining plate, and the retaining plate is fixed by bolts when it is in contact with one side of the U-shaped limit frame.

[0014] Furthermore, a limiting sleeve is movably mounted on a limiting sleeve near one end of the piston shaft of the maintenance operation extension hydraulic cylinder through a rotating shaft, and the limiting sleeve can be clamped and fixed to the piston shaft of the excavation operation support hydraulic cylinder.

[0015] Beneficial effects of the present invention:

[0016] The trolley system of the present invention is a kind of crawler-type submerged boat-type excavator with floating upper and lower tracks, and four stabilizing blocks driven by hydraulic cylinders are arranged on the boat hull, and the stabilizing blocks are used to abut against the load-bearing and leveling devices arranged on the crawler-type traveling body. When the excavator body performs water excavation operation, the crawler chassis of the crawler traveling body moves on the underwater mud and lands on the solid ground. The excavation operation supporting hydraulic cylinder, linkage shaft and stabilizing blocks abut against the load-bearing and leveling devices on the top load-bearing frame of the crawler traveling body, so that the four corners of the load-bearing frame are subjected to force and transmitted to the crawler chassis of the crawler traveling body, so that the boat hull and the excavator body land on the solid ground as if on land, and during construction operation, they will not be bumped and swayed by the reaction force of the excavation force, thereby ensuring the same stability and reliability of the operation as on land, thereby improving the maneuverability, excavation effect and efficiency of the water excavation operation, and the overall manufacturing and operation costs of the equipment are lower than those of existing equipment.

[0017] 2. The hydraulic cylinder is set as the excavation operation support hydraulic cylinder and the maintenance operation extension hydraulic cylinder, and cooperates with the inflatable airbag set on the load-bearing frame on the top of the crawler travel body. The limit pin is inserted into the pin hole on the floating lifting connecting rod assembly to fix the hull and the crawler travel body. The replaced maintenance operation extension hydraulic cylinder drives the piston shaft to drive the linkage shaft and the stabilizing block to move downward. After the stabilizing block touches the bottom of the water and cannot move down anymore, the hull and the crawler travel body move up accordingly until the crawler travel body surfaces, which is convenient for operators to perform maintenance on site without having to move to the maintenance point for maintenance. The crawler travel body can be repaired on site and used immediately, thereby improving work efficiency.

[0018] 3. Through the inflatable airbag provided on the load-bearing frame on the top of the crawler body, when the crawler body cannot be repaired on site, the airbag can be inflated by an air pump, so that the crawler body as a whole floats to the bottom of the hull, and it is also convenient to be towed to a convenient maintenance site for maintenance by a tugboat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments disclosed herein and, together with the description, serve to explain the principles disclosed herein.

[0020] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a structural diagram of a crawler-type submerged boat-type excavator that floats up and down in the first embodiment of the present invention;

[0022] Figure 2 for Figure 1 A simplified top view of the mid-hull;

[0023] Figure 3 for Figure 2 Schematic diagram of the structure of the middle limit device;

[0024] Figure 4 for Figure 1 A local enlarged structural diagram in FIG.

[0025] Figure 5 for Figure 1 A schematic diagram of the local enlarged structure at point B in FIG.

[0026] Figure 6 This is a structural diagram of a lengthened hydraulic cylinder for replacement and maintenance work in the first embodiment of the present invention;

[0027] Figure 7 This is a structural schematic diagram of the hull in the excavation operation state in the second embodiment of the present invention;

[0028] Figure 8 for Figure 7 Side view of the middle linkage shaft;

[0029] Figure 9 for Figure 7 Status diagram of the hydraulic cylinder when it is lengthened during the replacement and maintenance work;

[0030] Figure 10 for Figure 9 A schematic diagram of the partially enlarged structure at point C;

[0031] Figure 11 for Figure 9 The state diagram after the hydraulic cylinder is lengthened during the replacement and maintenance work;

[0032] Figure 12 for Figure 11 Schematic diagram of the local enlarged structure at D in the figure.

[0033] In the picture:

[0034] 1. Hull; 101. Balancing groove; 102. Drainage groove; 103. Placement groove; 104. Positioning slot; 2. Excavator body; 3. Crawler travel body; 4. Longitudinal beam; 5. Crossbeam; 6. Floating lifting connecting rod assembly; 7. Pin sleeve; 8. Limiting device; 801. Limiting plate; 802. Sliding plate; 803. U-shaped block; 804. Limiting pin shaft; 9. Sewage discharge control lever; 10. Sealing plug; 11. Load-bearing column; 12. Rotating plate; 13. Buffer and shock-absorbing pad; 1 4. Passive rotating column; 15. Excavation support hydraulic cylinder; 16. Linkage shaft; 17. Stabilizing block; 18. Adjusting rotating shaft; 19. Adjusting clamping shaft; 20. Push scraper; 21. Scraping operation hydraulic cylinder; 22. Air bag; 23. Adjustable pipeline bracket; 24. Inspection port sealing plate; 25. Wave baffle; 26. Maintenance operation extension hydraulic cylinder; 27. U-shaped limit frame; 28. Rotating plate; 29. ​​Fixed connecting plate; 30. Retaining plate; 31. Limiting shaft sleeve; 32. Linkage block. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application. Example 1

[0036] See also Figure 1-Figure 2, a kind of up and down floating crawler submerged boat-type excavator, comprises a hull 1 and a crawler-type traveling body 3, an excavator body 2 is fixedly installed on the hull 1, and a load-bearing frame is fixedly installed on the top of the crawler-type traveling body 3, and the load-bearing frame is welded together by a plurality of longitudinal beams 4 and transverse beams 5. The longitudinal beams 4 and transverse beams 5 all adopt a square tube hollow structure, so that the load-bearing frame has both reliable bearing structural force and can reduce the weight of the whole machine. After welding and sealing, the internal space gas can play a certain buoyancy role underwater. Four pin sleeves 7 are provided on the top of the load-bearing frame, and the four pin sleeves 7 are respectively close to the four corners of the load-bearing frame. A balancing groove 101 is provided on the hull 1 above the four pin sleeves 7, and a floating lifting connecting rod assembly 6 is movably sleeved in the balancing groove 101. The bottom end of the floating lifting connecting rod assembly 6 is fixedly connected to the pin sleeve 7, so that when the hull 1 floats on the water, the crawler The belt-type traveling body 3 sinks to the bottom of the water, so that the tracks of the crawler-type traveling body 3 can travel on the bottom of the water during operation. The inner diameter of the balance tank 101 increases evenly from the middle to the bottom and from the middle to the top, and the middle part of the balance tank 101 fits with the outer side of the floating lifting connecting rod assembly 6, so that the floating lifting connecting rod assembly 6 can deflect in all directions within the balance tank 101, so that the crawler-type traveling body 3 can encounter a slope when walking underwater. The inclination of the crawler-type traveling body 3 causes the floating lifting connecting rod assembly 6 to form an inclination angle with the central axis of the balance tank 101 without affecting the balance and stability of the hull 1 floating on the water surface. An inclined floating space is reserved for the floating lifting connecting rod assembly 6 to avoid the problem of water entering the low surface after the hull 1 tilts due to the floating lifting connecting rod assembly 6 tilting with the crawler-type traveling body 3, thereby enabling the hull 1 to maintain a horizontal state.

[0037] See also Figure 1-Figure 3 The floating lifting connecting rod assembly 6 is provided with a plurality of equally spaced pin holes, the number of which is not less than two. A limiting device 8 for positioning the pin holes of the floating lifting connecting rod assembly 6 is fixedly installed on the top of the hull 1. Figure 3-Figure 4Each limiting device 8 includes a set of limiting plates 801, and the number of a set of limiting plates 801 is two. The two limiting plates 801 are both arranged on one side of the balance groove 101 on the hull 1. The limiting plates 801 can be fixed to the hull 1 by bolts. A sliding plate 802 is movably sleeved in the slideway formed between the two limiting plates 801. A U-shaped block 803 is fixedly installed on one side of the top of the sliding plate 802. The U-shaped block 803 can be fixed to the sliding plate 802 by bolts. A limiting pin is movably sleeved between the two vertical plates of the U-shaped block 803. Shaft 804, one end of the limit pin shaft 804 can be snapped into the pin hole on the floating lifting connecting rod assembly 6. When in use, that is, when the hull 1, the excavator body 2 and the crawler traveling body 3 as a whole need maintenance and repair, the sliding plate 802 and the U-shaped block 803 are moved toward the floating lifting connecting rod assembly 6 until they are close to the floating lifting connecting rod assembly 6, and then the limit pin shaft 804 is inserted into the pin hole on the floating lifting connecting rod assembly 6, so that the hull 1 and the crawler traveling body 3 are fixed at the required height, which is convenient for maintenance operations.

[0038] Please continue reading Figure 1 A number of air bags 22 are provided on the inner side of the load-bearing frame, and a spare air pump for inflating the air bags 22 is provided on the hull 1. When the crawler-type traveling body 3 fails at the bottom of the water and cannot be repaired in situ, the air bags 22 are inflated by the air pump, and the buoyancy is used to make the crawler-type traveling body 3 float as a whole. Then, the hull 1 and the crawler-type traveling body 3 can be towed as a whole to a place where they can be repaired by a tugboat.

[0039] Four load-bearing and leveling devices are fixed on the top of the load-bearing frame, and the four load-bearing and leveling devices are close to the four corners of the load-bearing frame, and the load-bearing and leveling devices are located on the outside of the pin sleeve 7, please refer to Figure 1 and Figure 5 Four excavation support hydraulic cylinders 15 are installed on the top of the hull 1. The four excavation support hydraulic cylinders 15 are respectively located directly above the four bearing columns 11. The piston shafts of the excavation support hydraulic cylinders 15 are connected with linkage shafts 16. The bottom ends of the linkage shafts 16 extend to the bottom of the hull 1 and are fixedly connected with a stabilizing block 17. When the excavator body 2 is operated to perform water excavation operations, the piston shafts of the excavation support hydraulic cylinders 15 push the linkage shafts 16 downward until the bottom of the stabilizing block 17 abuts against the top of the load-bearing stabilizing device, thereby facilitating the excavation of the excavation work. The crawler chassis of the crawler traveling body 3 moves on the underwater mud and lands on a solid place. The hydraulic cylinder 15, the linkage shaft 16 and the stabilizing block 17 supporting the excavation operation abut the load-bearing and leveling device on the top load-bearing frame of the crawler traveling body 3, so that the four corners of the load-bearing frame are subjected to force and transmitted to the crawler chassis of the crawler traveling body 3, so that the hull 1 and the excavator body 2 land on a solid place in the underwater mud. During construction operations, the hull 1 will not be shaken or swayed by the reaction force of the excavation force, ensuring that the operation is as stable and reliable as on land.

[0040] The load-bearing and leveling device includes a load-bearing column 11 fixedly mounted on the load-bearing frame, the middle part of the load-bearing column 11 is designed as a through groove, and the inner diameter of the through groove in the middle of the load-bearing column 11 is larger than the outer diameter of the stabilizing block 17, and a rotating plate 12 that can be rotatably opened is provided on the top of the load-bearing column 11. A buffering and shock-absorbing pad 13 is fixedly mounted on the top of the rotating plate 12. When the excavator body 2 is operated to perform water operations, the bottom of the stabilizing block 17 abuts against the buffering and shock-absorbing pad 13. By adding the buffering and shock-absorbing pad 13, the crawler-type traveling body 3 can utilize the buffering and shock-absorbing effect of the buffering and shock-absorbing pad 13 when operating on land to ensure the stability of the crawler-type traveling body 3 when walking, and by controlling the rotation of the rotating plate 12 to drive the buffering and shock-absorbing pad 13 to open, the stabilizing block 17 can pass through the rotating plate 12 and fall to the bottom of the water. Please refer to Figure 6 , a maintenance operation extension hydraulic cylinder 26 can also be fixedly installed on the hull 1, and the piston shaft of the maintenance operation extension hydraulic cylinder 26 is fixedly connected to the linkage shaft 16, and the maintenance operation extension hydraulic cylinder 26 is used to replace the excavation operation support hydraulic cylinder 15. For example, when the excavator body 2 is operating on the water, if the chassis or crawler of the crawler type traveling body 3 fails and needs to be repaired, the air pump can be used to inflate the air bag 22 first, so that the crawler type traveling body 3 floats to the bottom of the hull 1 as a whole and fits it, and then the limit pin 804 is inserted into the pin hole on the floating lifting connecting rod assembly 6, so that The hull 1 and the crawler-type traveling body 3 are fixed together, and the maintenance operation is extended by using the replacement hydraulic cylinder 26 to drive the piston shaft to drive the linkage shaft 16 and the stabilizing block 17 to move downward. After the stabilizing block 17 touches the bottom of the water and cannot move downward any further, the hull 1 and the crawler-type traveling body 3 move upward accordingly, until the crawler-type traveling body 3 floats to the surface, making it convenient for operators to perform maintenance on site. An inspection port sealing plate 24 is provided in the middle of the bottom end of the hull 1. Maintenance personnel can open the inspection port sealing plate 24 to perform on-site maintenance on the excavator components at the bottom of the hull 1 or the parts of the crawler-type traveling body 3 that need to be repaired.

[0041] Please continue reading Figure 1 and Figure 5 A passive rotating column 14 is provided on one side of the top of the rotating plate 12, and an adjusting shaft 18 is provided on the hull 1 directly above the passive rotating column 14. The bottom end of the adjusting shaft 18 is fixedly connected to an adjusting card shaft 19, and the bottom end of the adjusting card shaft 19 is movably engaged with the top of the passive rotating column 14, that is, after the buffer shock-absorbing pad 13 moves to fit the bottom of the hull 1, the adjusting card shaft 19 is just engaged with the passive rotating column 14, so that the adjusting card shaft 19, the passive rotating column 14, the rotating plate 12 and the buffer shock-absorbing pad 13 can be rotated as a whole by rotating the adjusting shaft 18, opening the middle through slot of the supporting column 11, so that the stabilizing block 17 can move to the bottom of the supporting column 11 and to the bottom of the water.

[0042] The cavity compartments at both ends of the hull 1 are filled with buoyancy-aiding foam to prevent the shell of the hull 1 from being damaged in an accident, thereby ensuring the overall buoyancy of the hull 1. In addition, wave-breaking baffles 25 can be installed at both ends of the hull 1, so that when the tracked moving body 3 is launched into the water, when the hull 1 tilts due to the forward inclination of the slope, the bow that enters the water first is blocked by the wave-breaking baffles 25, thereby preventing the low part of the front end of the hull 1 from being flooded.

[0043] See also Figure 1 and Figure 4 A drainage trough 102 is provided on the hull 1, and the drainage trough 102 is located at the bottom of the gap at both ends of the excavating body 2 on the hull 1. When there is water in the cabin, the drainage trough 102 must be opened to discharge sewage when the hull is above the water level. A sewage discharge control rod 9 is movable in the drainage trough 102, and a sealing plug 10 is fixedly connected to the bottom end of the sewage discharge control rod 9. The sealing plug 10 is sealed and sleeved with the bottom of the drainage trough 102. When drainage is required, the sewage discharge control rod 9 is rotated to drive the sealing plug 10 to rotate. After using the drainage trough 102 to drain the accumulated water, the sewage discharge control rod 9 must be immediately rotated in the opposite direction to make the sealing plug 10 re-seal the drainage trough 102 to prevent water from flowing back into the cabin when launching again due to forgetting.

[0044] See also Figure 1 Both ends of the hull 1 are movably provided with a pushing scraper 20, and the pushing scraper 20 is driven up and down by a scraping operation hydraulic cylinder 21 set on the load-bearing frame. The piston shaft of the scraping operation hydraulic cylinder 21 is used to drive the pushing scraper 20 to move and adjust the height of the pushing scraper 20. The pushing scraper 20 at the two ends of the crawler traveling body 3 is used to push and scrape the protrusions and grooves formed by the crawler rolling, creating good conditions for the later underwater cleaning.

[0045] An adjustable pipe bracket 23 is provided between the bottom of the hull 1 and the top of the load-bearing frame. The adjustable pipe bracket 23 folds and contracts with the depth of the water to ensure that the hull 1 and the tracked moving body 3 as a whole can be unobstructed and reliable in deep or shallow water, and the oil circuit for controlling the tracked moving body 3 and the pipeline for inflating the airbag 22 are fixed by the adjustable pipe bracket 23. Example 2

[0046] See also Figure 7 On the basis of the first embodiment, and different from the first embodiment, the hull 1 is provided with an excavation support hydraulic cylinder 15 and a maintenance operation extension hydraulic cylinder 26. The linkage shaft 16 and the floating lifting connecting rod assembly 6 are staggered to ensure that the floating lifting connecting rod assembly 6 does not block the excavation support hydraulic cylinder 15 or the maintenance operation extension hydraulic cylinder 26. Please refer to Figure 8The linkage shaft 16 is in the shape of a U-shaped shaft. The two vertical axes of the linkage shaft 16 can be respectively clamped with the piston axes of the excavation operation support hydraulic cylinder 15 and the maintenance operation extension hydraulic cylinder 26. The bottom fixed sleeve of the linkage shaft 16 is provided with a linkage block 32. The bottom of the linkage block 32 is fixedly sleeved with the stabilizing block 17. When the excavation operation support hydraulic cylinder 15 is fixed in a vertical state, the piston axis of the excavation operation support hydraulic cylinder 15 is clamped and fixed with a vertical axis at the top of the linkage shaft 16. The maintenance operation extension hydraulic cylinder 26 can be placed flat on the hull 1. At this time, the excavator body 2 performs water excavation operations normally. When the crawler traveling body 3 needs to be overhauled and the crawler traveling body 3 and the excavator body 2 need to be pushed out of the water as a whole, the maintenance operation extension hydraulic cylinder 26 can be fixed in a vertical state, and the piston axis of the maintenance operation extension hydraulic cylinder 26 is clamped and fixed with the other vertical axis at the top of the linkage shaft 16. The top of the linkage block 32 is provided with a reinforcing rib connecting the two vertical axes of the linkage shaft 16.

[0047] Specifically, a rotating plate 28 is connected between one end of the cylinder body of the excavation operation support hydraulic cylinder 15 and one end of the cylinder body of the maintenance operation extension hydraulic cylinder 26 via a rotating shaft, and one end of the rotating shaft connecting the rotating plate 28 and the maintenance operation extension hydraulic cylinder 26 is sleeved with a side surface of the U-shaped limit frame 27, so that the rotating plate 28 can rotate with the rotating shaft connecting the rotating plate 28 and the maintenance operation extension hydraulic cylinder 26 as the axis. A U-shaped limit frame 27 is provided on the hull 1 on one side of the linkage shaft 16, and the three vertical plates of the U-shaped limit frame 27 are all located on the outside of the linkage shaft 16. A placement groove 103 is opened on the top of the hull 1, which is away from one side of the U-shaped limit frame 27, and a positioning slot 104 is provided at the end of the placement groove 103 away from the linkage shaft 16. Figure 9-10 The excavation support hydraulic cylinder 15 and the maintenance extension hydraulic cylinder 26 are both fixedly mounted with a positioning assembly near one end of the piston shaft. The positioning assembly includes a fixed connecting plate 29, and a retaining plate 30 is fixedly connected to one side of the fixed connecting plate 29. Please refer to Figure 7 and Figure 10 When the excavation support hydraulic cylinder 15 or the maintenance operation extension hydraulic cylinder 26 is set to a vertical state, the retaining plate 30 is fitted with one side of the U-shaped limit frame 27 and can be fixed with bolts, and the number of positioning components on the maintenance operation extension hydraulic cylinder 26 can be set to multiple to improve the stability of the maintenance operation extension hydraulic cylinder 26 when it is set to a vertical state and used to lift the excavator body 2 and the crawler travel body 3.

[0048] Please continue reading Figure 9The limiting sleeve 31 near one end of the piston shaft on the maintenance operation extension hydraulic cylinder 26 is movably mounted on the limiting sleeve 31 through the rotating shaft, and the limiting sleeve 31 can be clamped and fixed with the piston shaft of the excavation operation support hydraulic cylinder 15. During use, when it is necessary to repair the crawler travel body 3, first remove the bolts and nuts fixing the upper limiting sleeve 31 of the excavation operation support hydraulic cylinder 15 and the U-shaped limiting frame 27, then rotate the excavation operation support hydraulic cylinder 15 and put it down in the placement groove 103, and make the excavation operation support hydraulic cylinder 15 away from the piston One end of the shaft is located at the positioning slot 104, and a pin is inserted to limit it. Then the piston shaft of the excavation support hydraulic cylinder 15 is aligned with the limiting shaft sleeve 31 and inserted, and then a bolt is inserted from one side to fix it. Then the excavation support hydraulic cylinder 15 is started to drive the piston shaft to push the limiting shaft sleeve 31 to move. At the same time, the maintenance personnel hold the cylinder body of the maintenance operation extension hydraulic cylinder 26 away from the piston shaft at the end of the maintenance operation extension hydraulic cylinder 26. With the assistance of the hydraulic push of the excavation support hydraulic cylinder 15, the maintenance operation extension hydraulic cylinder 26 is rotated as shown below. Figure 11 and Figure 12 The state shown is shown, and the fixing plate 30 on the maintenance operation extension hydraulic cylinder 26 is fixed to the U-shaped limit frame 27 by bolts. Therefore, during the water excavation operation, when the crawler travel body 3 fails and needs maintenance, the maintenance operation extension hydraulic cylinder 26 can be replaced, and the maintenance operation extension hydraulic cylinder 26 is used to push the excavator body 2 and the crawler travel body 3 out of the water to facilitate maintenance. When the maintenance operation extension hydraulic cylinder 26 replaces the excavation operation support hydraulic cylinder 15, the hydraulic pressure of the excavation operation support hydraulic cylinder 15 is used for assistance, which is convenient for maintenance personnel to use. At the same time, during normal use, the maintenance operation extension hydraulic cylinder 26 can be placed flat on the hull 1, and normal use will not be affected by the excessive length of the maintenance operation extension hydraulic cylinder 26.

Claims

1. A floating crawler-type submerged boat-type excavator, comprising a hull (1), on which an excavator body (2) is fixedly mounted, characterized in that: A crawler-type traveling body (3) is provided below the hull (1), a load-bearing frame is fixedly installed on the top of the crawler-type traveling body (3), and four load-bearing and leveling devices are provided on the top of the load-bearing frame near its four corners. A linkage shaft (16) is provided on the hull (1) and is located directly above the load-bearing and leveling device. The bottom end of the linkage shaft (16) extends to the bottom of the hull (1) and is fixedly connected to a stabilizing block (17). The linkage shaft (16) is driven to move longitudinally by a hydraulic cylinder provided on the top of the hull (1). When the excavator body (2) performs an above-water excavation operation, the piston shaft of the hydraulic cylinder pushes the linkage shaft (16) to move downward until the bottom of the stabilizing block (17) abuts against the top of the load-bearing and leveling device. The hydraulic cylinder comprises an excavation operation support hydraulic cylinder (15) and a maintenance operation extension hydraulic cylinder (26), the linkage shaft (16) and the floating lifting connecting rod assembly (6) are staggered, and the linkage shaft (16) is in the shape of a U-shaped shaft, and the two vertical shafts of the linkage shaft (16) are respectively movably connected with the piston shafts of the excavation operation support hydraulic cylinder (15) and the maintenance operation extension hydraulic cylinder (26), and a rotating plate (28) is connected between one end of the cylinder body of the excavation operation support hydraulic cylinder (15) and one end of the cylinder body of the maintenance operation extension hydraulic cylinder (26) through a rotating shaft, and one end of the rotating shaft connecting the rotating plate (28) and the maintenance operation extension hydraulic cylinder (26) is sleeved with a side surface of the U-shaped limit frame (27), and the hull (1) is provided with There is a U-shaped limit frame (27) located on one side of the linkage shaft (16), and the three vertical plates of the U-shaped limit frame (27) are all located on the outside of the linkage shaft (16). The top of the hull (1) is provided with a placement groove (103) away from the side of the U-shaped limit frame (27), and the end of the placement groove (103) away from the linkage shaft (16) is provided with a positioning slot (104). The excavation operation support hydraulic cylinder (15) and the maintenance operation extension hydraulic cylinder (26) are both fixedly installed with a positioning component close to one end of the piston shaft. The positioning component includes a fixed connecting plate (29), and one side of the fixed connecting plate (29) is fixedly connected to a retaining plate (30). The retaining plate (30) is fixed to one side of the U-shaped limit frame (27) by bolts when it is in contact with the side.

2. The up-and-down floating crawler submerged boat-type excavator according to claim 1, characterized in that: The load-bearing frame comprises a plurality of longitudinal beams (4) and transverse beams (5) welded together, and both the longitudinal beams (4) and transverse beams (5) adopt a square tube hollow structure.

3. The up-and-down floating crawler submerged boat-type excavator according to claim 1, characterized in that: Four pin sleeves (7) are provided on the top of the load-bearing frame, and the four pin sleeves (7) are respectively close to the four corners of the load-bearing frame, and the pin sleeves (7) are located on the inner side of the load-bearing stabilizing device. A balancing groove (101) located above the four pin sleeves (7) is opened on the hull (1), and a floating lifting connecting rod assembly (6) is movably mounted in the balancing groove (101), and the bottom end of the floating lifting connecting rod assembly (6) is fixedly connected to the pin sleeve (7).

4. The up-and-down floating crawler submerged boat-type excavator according to claim 3, characterized in that: The inner diameter of the balancing groove (101) increases uniformly from the middle to the bottom and from the middle to the top, and the middle part of the balancing groove (101) is in contact with the outer side of the floating lifting connecting rod assembly (6). The floating lifting connecting rod assembly (6) is provided with a plurality of equally spaced pin holes, and the number of the pin holes is not less than two. A limiting device (8) for positioning the pin holes of the floating lifting connecting rod assembly (6) is fixedly installed on the top of the hull (1).

5. The up-and-down floating crawler submerged boat-type excavator according to claim 4, characterized in that: The limiting device (8) includes a group of limiting plates (801), the number of the limiting plates (801) in the group is two, and the two limiting plates (801) are both arranged on one side of the balance groove (101) on the hull (1), the limiting plates (801) can be fixed to the hull (1) by bolts, a sliding plate (802) is movably sleeved in a slideway formed between the two limiting plates (801), a U-shaped block (803) is fixedly installed on one side of the top of the sliding plate (802), the U-shaped block (803) can be fixed to the sliding plate (802) by bolts, a limiting pin (804) is movably sleeved between the two vertical plates of the U-shaped block (803), and one end of the limiting pin (804) can be clamped with a pin hole on the floating lifting connecting rod assembly (6).

6. The up-and-down floating crawler submerged boat-type excavator according to claim 1, characterized in that: A plurality of air bags (22) are provided on the inner side of the load-bearing frame, wherein the excavation operation supporting hydraulic cylinder (15) is used to drive the stabilizing block (17) at the bottom end of the linkage shaft (16) and the load-bearing leveling device during the excavation operation. When the linkage shaft (16) is used to repair the crawler-type traveling body (3), the stabilizing block (17) at the bottom end of the linkage shaft (16) is driven to move to the bottom of the water, and the excavation body (2) and the crawler-type traveling body (3) are pushed out of the water as a whole.

7. The up-and-down floating crawler submerged boat-type excavator according to claim 6, characterized in that: The load-bearing and leveling device includes a load-bearing column (11) fixedly mounted on a load-bearing frame, the middle portion of the load-bearing column (11) is designed as a through slot, and the inner diameter of the through slot in the middle portion of the load-bearing column (11) is greater than the outer diameter of the stabilizing block (17), the top of the load-bearing column (11) is provided with a rotatable rotating plate (12), the top of the rotating plate (12) is fixedly mounted with a buffering and shock-absorbing pad (13), and one side of the top of the rotating plate (12) is provided with a passive rotating column (14), the hull (1) is provided with an adjusting shaft (18) located just above the passive rotating column (14), the bottom end of the adjusting shaft (18) is fixedly connected with an adjusting clamping shaft (19), the bottom end of the adjusting clamping shaft (19) is movably clamped with the top of the passive rotating column (14), and after the buffering and shock-absorbing pad (13) moves to fit the bottom of the hull (1), the adjusting clamping shaft (19) is just clamped with the passive rotating column (14).

8. The up-and-down floating crawler submerged boat-type excavator according to claim 1, characterized in that: The cavities at both ends of the hull (1) are filled with buoyancy-aiding foam, and wave-proof baffles (25) are installed at both ends of the hull (1). A drainage trough (102) is provided on the hull (1), and the drainage trough (102) is located at the bottom of the gaps at both ends of the excavator body (2) on the hull (1). A sewage discharge control rod (9) is movably sleeved in the drainage trough (102), and a sealing plug (10) is fixedly connected to the bottom end of the sewage discharge control rod (9). The sealing plug (10) is sealed and sleeved with the bottom of the drainage trough (102). A push scraper (20) is movably provided at both ends of the hull (1), and the push scraper (20) is driven up and down by a scraping operation hydraulic cylinder (21) provided on the load-bearing frame.

9. The vertically floating crawler submerged boat-type excavator according to claim 1, characterized in that: The limiting shaft sleeve (31) is movably mounted on the limiting shaft sleeve (31) near one end of the piston shaft of the maintenance operation extension hydraulic cylinder (26) via a rotating shaft, and the limiting shaft sleeve (31) can be clamped and fixed to the piston shaft of the excavation operation support hydraulic cylinder (15).

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