A three-stage telescopic conveyor for mobile earthmoving projects

Abstract

This utility model discloses a three-stage telescopic conveying device for mobile earthmoving projects, including a first traveling unit and a second traveling unit. The first traveling unit is equipped with a slewing assembly, and the second traveling unit is equipped with a lifting and slewing assembly. Both the slewing and lifting / slewing assemblies are equipped with a soil conveying component, which is a three-stage conveying component. One end of the soil conveying component connected to the slewing assembly is adjustable for slewing, and the other end connected to the lifting and slewing assembly is adjustable for simultaneous lifting and slewing. This utility model solves the problem of soil spillage during conveying by using a conveying unit with horizontal sections in the middle and inclined sides. This utility model uses a telescopic conveying device to transport soil, and when backfilling is required after construction, it reverses the conveying process, overcoming the drawbacks of the current widespread use of dump trucks for transportation.

Description

Technical Field

[0001] This utility model belongs to the field of earthwork engineering transportation technology, specifically relating to a three-stage telescopic conveying device for mobile earthwork engineering. Background Technology

[0002] Civil engineering construction involves a massive amount of earthwork, and currently, earthwork is carried out using a combination of excavators and dump trucks. This traditional construction method has the following problems: Firstly, dust pollution, exhaust pollution, and noise pollution are problems that cannot be solved and are contrary to the national green and low-carbon development strategy.

[0003] Secondly, the construction process requires both excavation and filling, which necessitates the repeated transport of earthwork, resulting in a large volume of dump trucks being used.

[0004] Thirdly, during peak periods of earthwork projects, thousands of dump trucks are needed, putting enormous pressure on traffic.

[0005] Fourth, the high frequency and intensity of use of dump trucks pose significant transportation safety hazards. In the event of an accident or malfunction, the project's earthwork will be greatly affected. Summary of the Invention

[0006] This utility model is proposed to solve the problems existing in the prior art, and its purpose is to provide a three-stage telescopic conveying device for mobile earthwork engineering.

[0007] The technical solution of this utility model is: a three-stage telescopic conveying device for mobile earthmoving projects, including a first traveling unit and a second traveling unit. The first traveling unit is equipped with a slewing assembly, and the second traveling unit is equipped with a lifting and slewing assembly. The slewing assembly and the lifting and slewing assembly are equipped with a soil conveying component. The soil conveying component is a three-stage conveying component. The end of the soil conveying component connected to the slewing assembly is adjusted for slewing, and the end of the soil conveying component connected to the lifting and slewing assembly is adjusted for simultaneous lifting and slewing.

[0008] Furthermore, the slag conveying assembly is a three-stage telescopic conveying assembly. The slag conveying assembly moves along with the first traveling unit and the second traveling unit, and its length is adjusted by telescopic extension and retraction, thereby adjusting the length of the slag conveying assembly.

[0009] Furthermore, the slag conveying assembly includes an outer main frame, the lower end of which is connected to the slewing assembly, and the upper end of which is provided with an outer main frame conveying assembly for slag conveying.

[0010] Furthermore, a first horizontal assembly space is formed inside the outer main frame. The side of the first assembly space away from the slewing assembly is open. A retractable secondary inner frame is provided in the first assembly space.

[0011] Furthermore, the upper end of the outer main frame is also equipped with a feeding hopper assembly, which can guide the slag and soil to the outer main frame conveying assembly.

[0012] Furthermore, an inner frame conveying assembly is provided at the upper end of the secondary inner frame, allowing the slag on the outer main frame conveying assembly to fall onto the inner frame conveying assembly for continued slag conveying.

[0013] Furthermore, a second horizontal assembly space is formed inside the secondary inner frame, and a third-level sub-frame is provided in the second assembly space.

[0014] Furthermore, the lower end of the secondary inner frame, away from the slewing assembly, is fixed to the lifting and slewing assembly, and the second traveling unit drives the secondary inner frame to complete the telescopic adjustment.

[0015] Furthermore, the upper end of the third-level sub-frame is equipped with a sub-frame conveying assembly, which allows the slag on the inner frame conveying assembly to fall onto the sub-frame conveying assembly for three-level slag conveying.

[0016] Furthermore, the third-level subframe extends and retracts by external force, and the bottom of the extension end of the third-level subframe is supported by a support member.

[0017] The beneficial effects of this utility model are as follows: The present invention comprises an outer main frame, a secondary inner frame, and a tertiary auxiliary frame, forming a three-stage conveying structure. The outer main frame is movably connected to the slewing assembly, enabling it to rotate around the first traveling unit. The secondary inner frame is movably connected to the lifting and slewing assembly, enabling it to rotate around the second traveling unit and allowing for height adjustment.

[0018] In this invention, the conveyor belt is supported by a combination of conveying unit and rollers, thereby solving the problem of large loads in the conveying of slag and soil.

[0019] In this invention, the feeding hopper assembly is placed on the outer main frame, which solves the problem that the material is easily scattered when poured into the outer main frame conveying assembly.

[0020] This invention solves the problem of soil spillage during transportation by using a conveying unit with horizontal sides in the middle.

[0021] This utility model uses a telescopic conveying device to transport construction waste. When backfilling is required after construction is completed, the waste is transported in the reverse direction, which solves the drawbacks of the current extensive use of dump trucks for transportation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the structure of the main frame in this utility model; Figure 3 This is a schematic diagram of one end of the main frame in this utility model; Figure 4 This is a schematic diagram of the other end of the main frame in this utility model; Figure 5 This is a schematic diagram of the middle structure of the main frame in this utility model; Figure 6 This is a schematic diagram of the structure of the two-stage internal frame in this utility model; Figure 7 This is a schematic diagram of one end of the secondary inner frame in this utility model; Figure 8 This is a schematic diagram of the other end of the secondary inner frame in this utility model; Figure 9 This is a schematic diagram of the middle structure of the secondary inner frame in this utility model; Figure 10 This is a schematic diagram of the three-level subframe in this utility model; Figure 11 This is a schematic diagram of one end of the three-level subframe in this utility model; Figure 12 This is a schematic diagram of the other end of the three-level subframe in this utility model; Figure 13 This is a schematic diagram of the structure of the feeding hopper assembly in this utility model; Figure 14 This is a schematic diagram of the slewing assembly in this utility model; Figure 15 This is a schematic diagram of the lifting and rotating assembly in this utility model; in: 1 First walking unit 2 Second walking unit 3. Slewing assembly; 4. Lifting slewing assembly 5. External main frame; 6. Feeding hopper assembly 7. Secondary internal frame; 8. Tertiary auxiliary frame 31 Rotating disk 32 Upper frame of the rotating disk 33 Turntable support arm 34 Turntable crossbeam 35 Turntable side plate 36 Turntable cross link 41 Lifting turntable 42 Lifting turntable base frame 43 Lifting turntable support arm 44 Lifting turntable adjusting arm 45 Rotary connecting seat 46 Vertical drive cylinder 47 Lifting turntable crossbeam 48 Diagonal brace drive cylinder 49 Connecting Platform 51 Main frame conveyor unit 52 Main frame driven roller 53 Main frame drive roller 54 Main frame slide rail 55 Main frame truss 56 Main frame support rollers 511 Main frame middle transverse roller; 512 Main frame left inclined roller 513 Main frame right inclined roller; 514 Main frame crossbar 515 Main frame installation folding plate; 516 Main frame support plate 61 First side plate of the hopper 62 Hopper connecting plate 63 Second side plate of hopper 64 Hopper support 71 Internal truss 72 Internal truss slide rail 73 Inner frame sliding assembly 74 Inner frame passive roller 75 Inner frame drive roller; 76 Inner frame idler roller. 77 Internal frame conveyor unit; 78 Internal frame assembly beam 731 Internal frame external mounting plate; 732 Internal frame upper pulley 733 Inner Frame Lower Roller 741 Passive Roller Assembly Beam; 742 Fixed Connecting Rod 771 Inner frame middle transverse roller; 772 Inner frame left slant roller 773 inner frame right inclined roller 81 Sub-frame truss 82 Sub-frame sliding assembly 83 Sub-frame enclosure plate 84 Sub-frame passive roller 85 Sub-frame connecting angle plate 86 Sub-frame conveyor unit 87 Sub-frame assembly beam; 88 Sub-frame idler rollers 821 Subframe external assembly plate; 822 Subframe upper pulley 823 Subframe Lower Roller 861 Sub-frame middle transverse roller; 862 Sub-frame left slant roller 863 auxiliary frame right skew roller. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figures 1 to 15 As shown, a three-stage telescopic conveying device for mobile earthmoving projects includes a first traveling unit 1 and a second traveling unit 2. The first traveling unit 1 is equipped with a slewing assembly 3, and the second traveling unit 2 is equipped with a lifting and slewing assembly 4. Slag conveying components are installed on the slewing assembly 3 and the lifting and slewing assembly 4. The slag conveying components are three-stage conveying components. The end of the slag conveying components connected to the slewing assembly 3 is adjusted for slewing, and the end of the slag conveying components connected to the lifting and slewing assembly 4 is adjusted for simultaneous lifting and slewing.

[0024] The slag conveying assembly is a three-stage telescopic conveying assembly. The slag conveying assembly moves with the first traveling unit 1 and the second traveling unit 2 and adjusts its length by telescopic extension and retraction, thereby adjusting the length of the slag conveying assembly.

[0025] The slag conveying assembly includes an outer main frame 5, the lower end of which is connected to the slewing assembly 3, and the upper end of which is provided with an outer main frame conveying assembly for slag conveying.

[0026] The outer main frame 5 forms a first horizontal assembly space inside, and the first assembly space is open on the side away from the slewing assembly 3. A telescopic secondary inner frame 7 is provided in the first assembly space.

[0027] The upper end of the outer main frame 5 is also provided with a feeding hopper assembly 6, which can guide the slag and soil to the outer main frame conveying assembly.

[0028] The upper end of the secondary inner frame 7 is equipped with an inner frame conveying component, which allows the slag on the outer main frame conveying component to fall onto the inner frame conveying component for continued slag conveying.

[0029] The secondary inner frame 7 forms a second horizontal assembly space, and a third-level sub-frame 8 is provided in the second assembly space.

[0030] The lower end of the secondary inner frame 7, which is away from the slewing assembly 3, is fixed to the lifting and slewing assembly 4. The second traveling unit 2 drives the secondary inner frame 7 to complete the telescopic adjustment.

[0031] The upper end of the third-level sub-frame 8 is equipped with a sub-frame conveying assembly, and the slag on the inner frame conveying assembly can fall onto the sub-frame conveying assembly for three-level slag conveying.

[0032] The third-level subframe 8 is extended and retracted by external force, and the bottom of the extension end of the third-level subframe 8 is supported by a support member.

[0033] Specifically, the supporting component is a rigid structure or a civil engineering structure.

[0034] Specifically, such as Figure 1 As shown, the first walking unit 1 and the second walking unit 2 are tracked walking units, and the first walking unit 1 and the second walking unit 2 also provide vertical support for the slag conveying assembly.

[0035] Specifically, such as Figures 2 to 5 As shown, the outer main frame 5 includes a main frame conveying unit 51, a main frame passive roller 52, a main frame active roller 53, a main frame slide rail 54, a main frame truss 55, and a main frame support roller 56.

[0036] Specifically, the main frame truss 55 includes a top truss, a bottom truss, a rear truss, and a front truss. The top truss, bottom truss, rear truss, and front truss enclose and form a hollow main frame truss 55. The first assembly space of the main frame truss 55 can accommodate the sliding secondary inner frame 7.

[0037] Specifically, the outer main frame conveying assembly includes an outer main frame conveyor belt, which is fitted onto the main frame passive roller 52 and the main frame active roller 53 for rotational conveying.

[0038] Specifically, a main frame conveying unit 51 is also provided at the upper end of the main frame truss 55. The main frame conveying unit 51 supports the outer main frame conveyor belt, thereby allowing the outer main frame conveyor belt to transport materials. There are multiple main frame conveying units 51 to accommodate the transportation of heavy loads of excavated soil.

[0039] Specifically, the main frame conveying unit 51 includes a central transverse roller 511, a left inclined roller 512, and a right inclined roller 513. The central transverse roller 511 is horizontal, while the left inclined roller 512 and right inclined roller 513 are symmetrically inclined. The inclined left and right inclined rollers 512 and 513 can gather the slag during conveying, preventing spillage from both sides due to vibration during straight conveying.

[0040] Specifically, the angle between the left inclined roller 512 and the right inclined roller 513 of the main frame and the horizontal direction can be, but is not limited to, 45°.

[0041] Specifically, the main frame conveying units 51 are densely arranged at the entry point of the slag, that is, densely arranged above the slewing assembly 3, and the main frame conveying units 51 are evenly distributed at other positions.

[0042] Specifically, the upper end of the main frame truss 55 is provided with a main frame crossbar 514, which serves as the mounting base for the middle transverse roller 511, the main frame left inclined roller 512, and the main frame right inclined roller 513.

[0043] Specifically, the main frame crossbar 514 is provided with a main frame support plate 516, the middle transverse roller 511 is arranged between the main frame support plate 516, the main frame crossbar 514 is also provided with a main frame mounting folding plate 515, the main frame mounting folding plate 515 is bent, the main frame left inclined roller 512 is arranged between the main frame mounting folding plate 515 and the main frame support plate 516, and the main frame right inclined roller 513 is arranged in the same way.

[0044] Specifically, the main frame passive roller 52 is a passive roller that cleans residual soil on the outer main frame conveyor belt. It cleans residual soil on the outer main frame conveyor belt and can prevent residual soil from entering the main frame conveying unit.

[0045] Specifically, the main frame passive roller 52 includes a passive roller body, on which a partition plate perpendicular to the axis is provided. The partition plate is located at the center line of the passive roller body. The passive roller body is provided with a vertical plate, which is arranged in a spiral shape on the outer wall of the passive roller body. The vertical plates on both sides of the partition plate are symmetrical. The partition plate and the vertical plate can be used to clean the residual soil on the outer main frame conveyor belt.

[0046] Specifically, a main frame roller 56 is also provided at the upper end of the main frame truss 55. The main frame roller 56 also supports the outer main frame conveyor belt during the conveying process. The main frame roller 56 is a continuous roller on the width of the main frame truss 55.

[0047] Specifically, the main frame truss 55 is provided with a main frame slide rail 54 inside. The main frame slide rail 54 consists of two parallel main frame slide rails, which guide the extension and retraction of the secondary inner frame 7.

[0048] Specifically, such as Figures 6 to 9 As shown, the secondary inner frame 7 includes an inner frame truss 71, an inner frame slide rail 72, an inner frame sliding assembly 73, an inner frame passive roller 74, an inner frame active roller 75, an inner frame support roller 76, an inner frame conveying unit 77, and an inner frame assembly beam 78.

[0049] Specifically, the outer contour of the inner frame 71 is smaller than that of the main frame 55, thus allowing it to extend and retract within it.

[0050] Specifically, corresponding to the main frame slide rail 54, an inner frame sliding component 73 is provided on the outer wall of the inner frame truss 71. The inner frame sliding component 73 slides along the main frame slide rail 54, thereby performing flexible sliding extension and retraction.

[0051] Specifically, the inner frame truss 71 is provided with an inner frame slide rail 72 in the second assembly space. The inner frame slide rail 72 is also two parallel rails, which are used for the telescopic guidance of the third-level sub-frame 8.

[0052] Specifically, the inner frame sliding assembly 73 includes inner frame outer mounting plates 731 disposed on both sides of the inner frame truss 71. The outer wall of the inner frame outer mounting plate 731 is provided with an upper inner frame pulley 732, which is in contact with the upper end of the main frame slide rail 54. The outer wall of the inner frame outer mounting plate 731 is provided with a lower inner frame lower pulley 733, which is in contact with the lower end of the main frame slide rail 54.

[0053] More specifically, there are four upper pulleys 732 on the inner frame, arranged in a straight line, and one lower pulley 733 on the inner frame, located on the line of symmetry of the four upper pulleys 732 on the inner frame.

[0054] More specifically, the inner frame upper pulley 732 and inner frame lower pulley 733 are both grooved wheel structures to prevent lateral slippage.

[0055] Specifically, the inner frame conveying assembly includes an inner frame conveyor belt, which is fitted onto the inner frame passive roller 74 and the inner frame active roller 75. The inner frame passive roller 74 and the inner frame active roller 75 drive the inner frame conveyor belt to rotate and convey.

[0056] Specifically, the inner frame passive roller 74 and the inner frame active roller 75 are installed in the inner frame truss 71.

[0057] Correspondingly, the inner frame passive roller 74 is a passive roller capable of cleaning residual soil. The structure of the inner frame passive roller 74 is the same as that of the main frame passive roller 52, and will not be described in detail here.

[0058] Specifically, the inner frame passive roller 74 is installed internally, which is different from the main frame passive roller 52. The inner frame truss 71 is provided with a passive roller assembly beam 741, which divides the front and rear truss frames into vertical and horizontal channels. The width of the vertical channel is greater than the width of the horizontal channel, and the vertical and horizontal channels are connected at 90°.

[0059] More specifically, the vertical channel can accommodate the inner frame passive roller 74 as a whole, with both ends of the inner frame passive roller 74 set in bearing seats, and the bearing seats fixed in the horizontal channel.

[0060] More specifically, a fixed connecting rod 742 is provided on one side of the bearing seat. The fixed connecting rod 742 passes through the inner frame truss 71 for fixation, thereby limiting and fixing the inner frame passive roller 74 in the transverse channel.

[0061] More specifically, the passive roller assembly beam 741 includes an L-shaped beam body and diagonal braces for reinforcement.

[0062] Specifically, the inner frame truss 71 is evenly provided with inner frame conveying units 77 and inner frame rollers 76, which support and carry the inner frame conveyor belt.

[0063] Specifically, the inner frame conveying unit 77 is in the same principle as the main frame conveying unit 51, but the installation method is different.

[0064] More specifically, the inner frame conveying unit 77 includes a middle transverse roller 771, a left inclined roller 772, and a right inclined roller 773. The middle transverse roller 771 is horizontal, while the left inclined roller 772 and the right inclined roller 773 are symmetrically inclined.

[0065] More specifically, the inner frame truss 71 is provided with an inner frame assembly beam 78, which includes two inclined sections and a horizontal section located in the middle. The inner frame assembly beam 78 is an integral structure.

[0066] More specifically, the transverse roller 771 in the middle of the inner frame is set on the horizontal section side wall of the inner frame assembly beam 78 by means of a support plate, and the left inclined roller 772 and the right inclined roller 773 of the inner frame are set on the inclined section side wall of the inner frame assembly beam 78 by means of a support plate.

[0067] Specifically, such as Figures 10 to 12 As shown, the three-level subframe 8 includes a subframe truss 81, a subframe sliding assembly 82, a subframe enclosure plate 83, a subframe passive roller 84, a subframe connecting corner plate 85, a subframe conveying unit 86, a subframe assembly beam 87, and a subframe support roller 88.

[0068] Specifically, the sub-frame sliding assembly 82 is arranged on both sides of the sub-frame truss 81. The sub-frame sliding assembly 82 corresponds to the inner frame slide rail 72. The sub-frame sliding assembly 82 slides along the inner frame slide rail 72, thereby realizing the extension and retraction of the three-level sub-frame 8.

[0069] Specifically, the subframe sliding assembly 82 includes a subframe external mounting plate 821 connected to the subframe truss 81. The outer wall of the subframe external mounting plate 821 is provided with an upper subframe pulley 822 and a lower subframe pulley 823. The upper subframe pulley 822 is in contact with the upper end of the inner frame slide rail 72, and the lower subframe pulley 823 is in contact with the lower end of the inner frame slide rail 72.

[0070] More specifically, the upper pulley 822 and the lower pulley 823 of the subframe are both grooved wheel structures to prevent lateral slippage.

[0071] More specifically, there are four lower pulleys 823 of the subframe, which are arranged in a straight line, and one upper pulley 822 of the subframe, which is installed on the axis of symmetry of the four lower pulleys 823 of the subframe.

[0072] Specifically, the subframe conveying assembly includes a subframe conveyor belt, which is fitted onto the subframe passive roller 84 and the subframe active roller. The subframe passive roller 84 and the subframe active roller drive the subframe conveyor belt to rotate, thereby conveying the slag in three stages.

[0073] Specifically, the passive roller 84 of the subframe is also a passive roller for cleaning residual soil. Its principle and roller structure will not be described in detail here. However, since the subframe truss 81 is built into the inner frame truss 71, the installation space of the passive roller 84 of the subframe is further limited. The installation of the passive roller 84 of the subframe is described here.

[0074] More specifically, two sub-frame connecting corner plates 85 are provided in the frame space of the sub-frame truss 81. The sub-frame connecting corner plates 85 are both L-shaped and are installed back to back. The two sub-frame connecting corner plates 85 divide the square frame space into a horizontal T-shaped passage.

[0075] More specifically, the vertical channel dimension of the T-shaped channel is larger than the horizontal channel dimension of the T-shaped channel. The vertical channel is used for the installation of the passive roller 84 of the sub-frame, and the horizontal channel is used for fixing the bearing seats at both ends of the passive roller 84 of the sub-frame.

[0076] Specifically, the output side of the sub-frame truss 81 is provided with a sub-frame enclosure plate 83. The sub-frame enclosure plate 83 is a closed folded plate structure, which encloses and forms a closed space for slag output enclosure.

[0077] Similarly, the sub-frame truss 81 is provided with a sub-frame conveying unit 86 and a sub-frame idler roller 88 for supporting and conveying the sub-frame conveyor belt. The sub-frame conveying unit 86 and the sub-frame idler roller 88 are evenly distributed in the conveying direction.

[0078] Similarly, the subframe conveying unit 86 includes a horizontal transverse roller 861 in the middle of the subframe and inclined left and right rollers 862 and 863 of the subframe, which are symmetrically inclined.

[0079] Specifically, the installation method of the sub-frame conveying unit 86 is the same as that of the inner frame conveying unit 77, which will not be elaborated further here.

[0080] Specifically, such as Figure 13 The feeding hopper assembly 6 is installed on the slag input side, i.e., on the outer main frame 1, so as to effectively place the poured slag onto the main frame conveying assembly.

[0081] Specifically, the hopper assembly 6 includes a first side plate 61, a connecting plate 62, a second side plate 63, and a support 64.

[0082] Specifically, the first side plate 61 and the second side plate 63 of the hopper are arranged above the two sides of the main frame conveying assembly along the length direction, and the first side plate 61 and the second side plate 63 of the hopper are symmetrically inclined.

[0083] Specifically, the hopper connecting plate 62 connects the first side plate 61 and the second side plate 63 of the hopper. The hopper connecting plate 62 is inclined and located above one end of the main frame conveying assembly.

[0084] Specifically, the lower ends of the first side plate 61 and the second side plate 63 of the hopper are each provided with a hopper support 64, and the hopper support 64 is connected to the upper end of the main frame truss 55.

[0085] Specifically, such as Figure 14 As shown, the rotary assembly 3 includes a rotating disk 31, a rotating disk upper frame 32, a rotating disk support arm 33, a rotating disk crossbeam 34, a rotating disk side plate 35, and a rotating disk cross link 36.

[0086] Specifically, the rotating disk 31 is disposed on the first traveling unit 1, and a through hole is formed at the center of the rotating disk 31. The boss on the first traveling unit 1 is inserted into the hole and fitted with a clearance, so that the rotating disk 31 can rotate on the first traveling unit 1.

[0087] More specifically, the bottom of the rotating disk 31 is provided with an internal gear ring, which is driven by the active gear on the first traveling unit 1, thereby realizing the overall rotation of the rotating disk 31.

[0088] Specifically, the upper end of the rotating disk 31 is provided with a turntable upper frame 32, the turntable upper frame 32 is provided with a turntable support arm 33, the turntable support arm 33 consists of multiple vertical pieces, a slot is formed in the support arm 33, a turntable crossbeam 34 is provided in the slot, a turntable side plate 35 is provided on both sides of the turntable crossbeam 34, and a turntable horizontal connecting rod 36 is provided between the turntable side plates 35.

[0089] Specifically, the turntable horizontal connecting rod 36 passes through the main frame truss 55 and is fixed to the main frame truss 55. The turntable horizontal connecting rod 36 and the turntable side plate 35 are connected to the main frame truss 55, and the rotation action is achieved by the turntable 31.

[0090] Specifically, such as Figure 15 As shown, the lifting and rotating assembly 4 includes a lifting turntable 41, a lifting turntable base frame 42, a lifting turntable support arm 43, a lifting turntable adjusting arm 44, a rotating connecting seat 45, a vertical drive cylinder 46, a lifting turntable crossbeam 47, and a diagonal brace drive cylinder 48.

[0091] Specifically, the lifting turntable 41 has the same structure as the rotating disk 31, which will not be described in detail here. The lifting turntable 41 provides a platform for overall rotation.

[0092] Specifically, the upper end of the lifting turntable 41 is provided with a lifting turntable base frame 42, and the lifting turntable base frame 42 is provided with an upwardly inclined lifting turntable support arm 43. The lifting turntable support arm 43 is in the form of a left and right double arm. The free end of the lifting turntable support arm 43 is provided with a movable lifting turntable adjusting arm 44. The free end of the lifting turntable adjusting arm 44 is provided with a rotating connecting seat 45. The upper end of the rotating connecting seat 45 is provided with a connecting platform 49, and the connecting platform 49 is connected to the inner frame truss 71.

[0093] More specifically, a lifting turntable crossbeam 47 is provided between the two lifting turntable adjustment arms 44.

[0094] More specifically, a diagonal brace drive cylinder 48 is provided between the lifting turntable adjusting arm 44 and the lifting turntable support arm 43, and the diagonal brace drive cylinder 48 drives the lifting turntable adjusting arm 44 to open.

[0095] More specifically, a movable vertical drive cylinder 46 is provided between the lifting turntable beam 47 and the lifting turntable 41. The vertical drive cylinder 46 provides load support to meet the support requirements of the secondary inner frame 7.

[0096] The present invention comprises an outer main frame, a secondary inner frame, and a tertiary auxiliary frame, forming a three-stage conveying structure. The outer main frame is movably connected to the slewing assembly, enabling it to rotate around the first traveling unit. The secondary inner frame is movably connected to the lifting and slewing assembly, enabling it to rotate around the second traveling unit and allowing for height adjustment.

[0097] In this invention, the conveyor belt is supported by a combination of conveying unit and rollers, thereby solving the problem of large loads in the conveying of slag and soil.

[0098] In this invention, the feeding hopper assembly is placed on the outer main frame, which solves the problem that the material is easily scattered when poured into the outer main frame conveying assembly.

[0099] This invention solves the problem of soil spillage during transportation by using a conveying unit with horizontal sides in the middle.

[0100] This utility model uses a telescopic conveying device to transport construction waste. When backfilling is required after construction is completed, the waste is transported in the reverse direction, which solves the drawbacks of the current extensive use of dump trucks for transportation.

Claims

1. A three-stage telescopic conveying device for mobile earthmoving projects, comprising a first traveling unit (1) and a second traveling unit (2), characterized in that: The first walking unit (1) is provided with a slewing assembly (3), and the second walking unit (2) is provided with a lifting and slewing assembly (4). The slewing assembly (3) and the lifting and slewing assembly (4) are provided with a slag conveying component. The slag conveying component is a three-stage conveying component. The end of the slag conveying component connected to the slewing assembly (3) is adjusted for slewing, and the end of the slag conveying component connected to the lifting and slewing assembly (4) is adjusted for simultaneous lifting and slewing.

2. The three-stage telescopic conveying device for mobile earthmoving projects according to claim 1, characterized in that: The slag conveying assembly is a three-stage telescopic conveying assembly. The slag conveying assembly moves with the first walking unit (1) and the second walking unit (2) and adjusts its length by telescopic adjustment, thereby adjusting the length of the slag conveying assembly.

3. The three-stage telescopic conveying device for mobile earthmoving projects according to claim 1, characterized in that: The slag conveying assembly includes an outer main frame (5), the lower end of which is connected to the slewing assembly (3), and the upper end of which is provided with an outer main frame conveying assembly for slag conveying.

4. A three-stage telescopic conveying device for mobile earthmoving projects according to claim 3, characterized in that: The outer main frame (5) forms a first horizontal assembly space inside. The first assembly space is open on the side away from the slewing assembly (3). A telescopic secondary inner frame (7) is provided in the first assembly space.

5. A three-stage telescopic conveying device for mobile earthmoving projects according to claim 3, characterized in that: The upper end of the outer main frame (5) is also provided with a feeding hopper assembly (6), which can guide the slag to the outer main frame conveying assembly.

6. A three-stage telescopic conveying device for mobile earthmoving projects according to claim 4, characterized in that: The upper end of the secondary inner frame (7) is provided with an inner frame conveying component, and the slag on the outer main frame conveying component can fall onto the inner frame conveying component to continue slag conveying.

7. A three-stage telescopic conveying device for mobile earthmoving projects according to claim 6, characterized in that: The secondary inner frame (7) forms a second horizontal assembly space, and a third-level sub-frame (8) is provided in the second assembly space.

8. A three-stage telescopic conveying device for mobile earthmoving projects according to claim 7, characterized in that: The lower end of the secondary inner frame (7) away from the slewing assembly (3) is fixed to the lifting slewing assembly (4), and the second traveling unit (2) drives the secondary inner frame (7) to complete the extension and retraction adjustment.

9. A three-stage telescopic conveying device for mobile earthmoving projects according to claim 8, characterized in that: The upper end of the third-level sub-frame (8) is provided with a sub-frame conveying assembly, and the slag on the inner frame conveying assembly can fall onto the sub-frame conveying assembly for three-level slag conveying.

10. A three-stage telescopic conveying device for mobile earthmoving projects according to claim 9, characterized in that: The third-level subframe (8) is extended and retracted by external force, and the bottom of the extension end of the third-level subframe (8) is supported by a support member.

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