An electric compactor

Abstract

The present application relates to an electric compactor, comprising a support base, a material bucket vertically disposed below the support base, a compacting hammer disposed above the material bucket, a lifting platform disposed above the support base, a control structure disposed on the lifting platform for controlling the raising and lowering of the compacting hammer, and a lifting structure disposed on the support base for driving the lifting platform up and down. The present application has the effect of reducing errors caused by sinking of the sample during the compaction process.

Description

Technical Field

[0001] The present application relates to the field of geotechnical testing equipment, and in particular to an electric compactor. Background Art

[0002] The compaction instrument is a specialized instrument used in foundation and fill projects such as water conservancy dams, highways, railways, civil airports, municipal engineering, and civil buildings. It measures the relationship between soil moisture content and dry density under standard compaction work, thereby determining the optimal moisture content and corresponding maximum dry density of the soil sample.

[0003] The indoor compaction test process involves placing a sample with a certain moisture content in three or two layers into a compaction test cylinder. Each layer is struck a certain number of times with a compacting hammer. The compaction work performed on each layer is the product of the hammer weight, the distance the hammer falls, and the number of blows. After compacting the soil layer by layer until the cylinder is full, the moisture content and wet density of the compacted soil are measured, and the dry density is calculated. Using the same method, five or more soil samples with different moisture contents are compacted, and the moisture content and dry density of each sample after compaction are determined. These data points are plotted with moisture content as the horizontal axis and dry density as the vertical axis. The curve connecting these points is the curve that reflects the compaction characteristics of the soil and is called the compaction curve.

[0004] Regarding the above-mentioned related technologies, the inventors believe that since the sample has a certain amount of sinking after each compaction, the multiple drop distances of the compaction hammer are inconsistent, which in turn causes errors in the experimental data. Summary of the Invention

[0005] In order to reduce the error caused by the sinking of the sample during the compaction process, the present application provides an electric compactor.

[0006] The present application provides an electric compactor, which adopts the following technical solution:

[0007] An electric compactor includes a support base, a material barrel is vertically arranged below the support base, a compacting hammer is arranged above the material barrel, a lifting platform is arranged above the support base, a control structure for controlling the lifting of the compacting hammer is arranged on the lifting platform, and a lifting structure for driving the lifting platform to move up and down is arranged on the support base.

[0008] By adopting the above technical solution, the control structure controls the compacting hammer to rise and fall below the support seat, and the compacting hammer is used to compact the material inside the material barrel. When the surface of the material inside the material barrel drops, the lifting platform is driven downward by the lifting structure, and the moving distance is the same as the height to which the surface of the material inside the material barrel drops, so that the height to which the compacting hammer drops remains unchanged, reducing the error caused by the sinking of the sample during the compaction process.

[0009] Optionally, the control structure includes a clamp, a winch is fixedly connected to the top of the lifting platform, a pull rope is wound on the winch, one end of the pull rope is fixedly connected to the winch, and the other end of the pull rope is fixedly connected to the clamp, a ring groove is provided on the side wall of the hammer, and a clamping block is horizontally provided at the bottom end of the clamp, and the clamping block can be extended into the interior of the ring groove.

[0010] By adopting the above technical solution, the clamping block is connected to the inside of the ring groove, and the hammer is clamped and fixed by the clamp, and then the winch drives the pull rope to rise, and the pull rope drives the clamp to rise, and then the winch drives the clamp to rise and fall.

[0011] Optionally, the clamp includes a shell, a linkage plate is vertically slidably connected to the interior of the shell, an elastic member is vertically provided on the top of the linkage plate, a first locking groove is horizontally provided on the side wall of the linkage plate, a second locking groove is horizontally provided on the linkage plate below the first locking groove, a locking block is horizontally slidably connected to the side wall of the linkage plate, the locking block can be opposite to the first locking groove and the second locking groove, the card block is located below the linkage plate, and the card block is rotatably connected to the shell, and the rotation center of the card block and the shell is located at one end of the linkage plate close to the center of the hammer.

[0012] By adopting the above technical solution, when it is necessary to clamp and fix the hammer, the blocking block is located inside the annular groove, and the locking block is now located inside the first locking groove, and the linkage plate pushes the blocking block to a horizontal state, and when it is necessary to drop the hammer, the locking block slides out from the inside of the first locking groove, and the hammer drives the blocking block to flip, and then the hammer falls, and the blocking block drives the linkage plate to move upward, compressing the elastic part, and the locking block is opposite to the second locking groove, and then the locking block enters the inside of the second locking groove, so that the blocking block is in a vertical state, and when it is necessary to extend the blocking block into the inside of the annular groove to drive the hammer to rise, the blocking block is moved to a position opposite to the annular groove, the locking block slides out from the inside of the second locking groove, and the elastic part pushes the linkage plate to move downward, so that the locking block is opposite to the first locking groove, the locking block extends into the inside of the first locking groove, and the linkage plate pushes the blocking block to a horizontal state, and then drives the blocking block to extend into the inside of the annular groove.

[0013] Optionally, a guide block is fixedly connected to the support seat at a position relative to the clamping claw, and a guide wall is provided on a side of the guide block relative to the clamping claw, and the guide wall is arranged at an incline.

[0014] By adopting the above technical solution, when the clamp drives the compacting hammer to rise, the guidance of the guide block reduces the shaking of the compacting hammer, thereby facilitating the positioning of the compacting hammer and facilitating the compacting hammer to enter the interior of the material barrel.

[0015] Optionally, the bottom wall of the clamp is fixedly connected to a first magnet, and the upper surface of the hammer is fixedly connected to a second magnet at a position relative to the first magnet, and the first magnet and the second magnet can be relatively attracted.

[0016] By adopting the above technical solution, when the clamping jaw is opposite to the hammer, the first magnet and the second magnet are opposite, and then the first magnet and the second magnet can be relatively adsorbed, so that the clamping jaw and the hammer can be relatively positioned, reducing the misalignment of the clamping jaw and the hammer.

[0017] Optionally, a synchronization plate is horizontally arranged inside the shell, two linkage plates are relatively arranged, and two locking blocks are relatively arranged. The synchronization plate is slidably connected to the shell relative to the locking block, and a synchronization block is slidably connected between the two opposite synchronization plates. The synchronization block is tilted relative to the side wall of the synchronization plate, and a first driving member that drives the synchronization block to move horizontally is provided on one side of the synchronization block, and a reset elastic member that drives the synchronization plate to reset is provided on the side wall of the synchronization plate.

[0018] By adopting the above technical solution, the first driving member drives the synchronization block to move up and down, and then the synchronization block drives the relative synchronization plate to move horizontally in the opposite direction, so that the synchronization plate drives the relative locking block to move horizontally, driving the locking block to extend into the interior of the first locking groove and the second locking groove respectively.

[0019] Optionally, the lifting structure includes a vertically arranged screw, the screw is threadedly connected to the lifting platform, the screw is rotatably connected to the support seat, the support seat is provided with a second driving member that drives the screw to rotate relative to the screw, and a guide rod is vertically provided at one end of the lifting platform away from the screw, the guide rod is slidably connected to the lifting platform, and the guide rod is fixedly connected to the support seat.

[0020] By adopting the above technical solution, the second driving member drives the screw to rotate, and the screw drives the lifting plate to move up and down, so that the lifting plate drives the winch to move up and down, and then adjusts the initial position of the clamping claw, which is convenient for the operator's operation.

[0021] Optionally, the support seat includes a horizontally arranged transverse plate, the bottom wall of the transverse plate is vertically provided with a support leg, the support leg includes a support leg and a first hydraulic cylinder vertically arranged at the top of the support leg, and the first hydraulic cylinder can drive the transverse plate to move up and down.

[0022] By adopting the above technical solution, the first hydraulic cylinder can drive the horizontal plate to move up and down, thereby adjusting the distance between the lower surface of the horizontal plate and the ground, making it convenient for the operator to adjust according to actual conditions.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The control structure controls the compacting hammer to move up and down below the support seat, and the compacting hammer is used to compact the material inside the material barrel. When the surface of the material inside the material barrel drops, the lifting platform is driven downward by the lifting structure, and the moving distance is the same as the height of the drop of the material surface inside the material barrel, so that the height of the compacting hammer remains unchanged, reducing the error caused by the sinking of the sample during the compaction process.

[0025] 2. When the hammer needs to be clamped and fixed, the blocking block is located inside the annular groove, and the locking block is located inside the first locking groove at this time, and the linkage plate pushes the blocking block to a horizontal state, and when the hammer needs to be dropped, the locking block slides out from the inside of the first locking groove, and the hammer drives the blocking block to flip, and then the hammer falls, and the blocking block drives the linkage plate to move upward, compressing the elastic member, and the locking block is opposite to the second locking groove, and then the locking block enters the inside of the second locking groove, so that the blocking block is in a vertical state, and when the blocking block needs to be extended into the inside of the annular groove to drive the hammer to rise, the blocking block is moved to a position opposite to the annular groove, the locking block slides out from the inside of the second locking groove, and the elastic member pushes the linkage plate to move downward, so that the locking block is opposite to the first locking groove, the locking block extends into the inside of the first locking groove, and the linkage plate pushes the blocking block to a horizontal state, and then drives the blocking block to extend into the inside of the annular groove.

[0026] 3. The screw is driven to rotate by the second driving member, and the screw drives the lifting plate to move up and down, so that the lifting plate drives the winch to move up and down, thereby adjusting the initial position of the clamping claw to facilitate the operation of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of an electric compactor in an embodiment of the present application;

[0028] Figure 2 This is a structural diagram of the lifting platform of an electric compactor in an embodiment of the present application;

[0029] Figure 3 1 is a schematic structural diagram of the clamping position of an electric compactor in an embodiment of the present application;

[0030] Figure 4 is a cross-sectional view of a clamping jaw position of an electric compactor in an embodiment of the present application;

[0031] Figure 5 It is a cross-sectional view of the interior of the housing of an electric compactor in an embodiment of the present application.

[0032] Explanation of the accompanying drawings: 1. Support seat; 11. Cross plate; 12. Support leg; 13. First hydraulic cylinder; 14. Guide block; 2. Material barrel; 3. Striking hammer; 31. Ring groove; 32. Second in-position switch; 33. Second magnet; 4. Lifting platform; 41. Lifting plate; 42. Lifting rod; 43. Screw; 44. First rotating motor; 45. Guide rod; 46. Winch; 461. Pull rope; 5. Control structure; 51. Clamp; 52. Housing; 521. Linkage plate; 522. First spring; 523. First locking groove; 524. Second locking groove; 53. Locking block; 54. Synchronous plate; 541. First plate body; 542. Second plate body; 543. Second spring; 55. Synchronous block; 551. Second hydraulic cylinder; 56. Block; 57. First in-position switch; 58. First magnet. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The embodiment of the present application discloses an electric compactor. Figure 1 、 Figure 2 An electric compactor includes a support base 1, a material barrel 2 is arranged below the support base 1, and a compacting hammer 3 is vertically arranged above the support base 1 relative to the material barrel 2, and a lifting platform 4 that moves up and down is arranged above the support base 1, and a control structure 5 for controlling the lifting of the compacting hammer 3 is also arranged on the support base 1.

[0035] The support base 1 includes a horizontally arranged horizontal plate 11, with support legs 12 vertically arranged below the horizontal plate 11. The top of the support legs 12 is fixedly connected to a first hydraulic cylinder 13. The first hydraulic cylinder 13 is arranged vertically, and the hydraulic rod of the first hydraulic cylinder 13 is fixedly connected to the horizontal plate 11. The first hydraulic cylinder 13 can drive the horizontal plate 11 to move up and down, thereby adjusting the distance between the horizontal plate 11 and the ground.

[0036] The compacting hammer 3 is a cylindrical structure with an annular groove 31 formed on its sidewall. The material barrel 2 is a hollow cylindrical structure with an open top. The outer wall diameter of the compacting hammer 3 is smaller than the inner wall diameter of the material barrel 2. The material barrel 2 and the compacting hammer 3 are coaxially arranged. When the compacting hammer 3 falls, the compacting hammer 3 can enter the interior of the material barrel 2 and slide relative to it, thereby compacting the material inside the material barrel 2.

[0037] The lifting platform 4 includes a horizontally arranged lifting plate 41 , with lifting rods 42 vertically arranged at both ends of the lifting plate 41 . The lifting rods 42 are fixedly connected to the horizontal plate 11 , and are slidably connected to the lifting platform 4 .

[0038] Both ends of the lifting plate 41 extend from the sidewalls of the lifting rod 42. A screw 43 is vertically mounted on one end of the lifting plate 41. The screw 43 is threadedly connected to the lifting plate 41 and rotationally connected to the horizontal plate 11. A first rotary motor 44 is fixedly connected to the horizontal plate 11 relative to the screw 43. The motor shaft of the first rotary motor 44 is fixedly connected to the screw 43. A guide rod 45 is vertically mounted on the other end of the lifting plate 41. The bottom end of the guide rod 45 is fixedly connected to the horizontal plate 11 and slidingly connected to the lifting plate 41.

[0039] A laser rangefinder is fixedly connected to the bottom of the horizontal plate 11. The laser rangefinder can measure the distance between the bottom surface of the horizontal plate 11 and the top wall of the clamping jaws 51, thereby adjusting the height of the lifting plate 41. When the first rotary motor 44 drives the screw 43 to rotate, the screw 43 drives the lifting plate 41 to move up and down relative to the horizontal plate 11.

[0040] Reference Figure 2 、 Figure 3 The control structure 5 includes a clamping jaw 51 located above the compacting hammer 3. The clamping jaw 51 is used to clamp and elevate the compacting hammer 3. A winch 46 is fixedly connected to the lifting plate 41, and a pull rope 461 is wound around the winch 46. One end of the pull rope 461 is fixedly connected to the winch 46, and the other end of the pull rope 461 passes through the lifting plate 41 and the cross plate 11 and is connected to each other in a relatively sliding manner. The other end of the pull rope 461 is fixedly connected to the clamping jaw 51. The winch 46 drives the pull rope 461 to be wound around the reel, thereby driving the clamping jaw 51 to move up and down.

[0041] Reference Figure 3 、 Figure 4 The clamping jaw 51 includes a housing 52, within which a linkage plate 521 is vertically disposed. The linkage plates 521 are disposed on either side of the hammer 3, with the line connecting the two opposing linkage plates 521 extending radially along the hammer 3. The linkage plates 521 are slidably connected to the housing 52. A first spring 522 is vertically disposed at the top of the linkage plate 521. One end of the first spring 522 is fixedly connected to the housing 52, and the other end of the first spring 522 is fixedly connected to the linkage plate 521.

[0042] A first locking slot 523 is horizontally defined on the sidewall of the linkage plate 521, and a second locking slot 524 is horizontally defined below the first locking slot 523. The first and second locking slots 523 and 524 are positioned opposite each other. A locking block 53 is horizontally defined on one side of the linkage plate 521. A synchronization plate 54 is horizontally defined within the housing 52, relative to the locking block 53. The synchronization plate 54 is L-shaped and includes a first plate 541 disposed horizontally and a second plate 542 disposed perpendicularly to the first plate 541. The first and second plates 541 and 542 are fixedly connected, and the first plate 541 is also fixedly connected to the locking block 53.

[0043] A second spring 543 is sleeved on the second plate 542 . One end of the second spring 543 is fixedly connected to the housing 52 , and the other end of the second spring 543 is fixedly connected to the second plate 542 .

[0044] A synchronization block 55 is provided between the two opposing second plates 542. The synchronization block 55 is slidably connected to the outer shell 52, and the side wall of the synchronization block 55 close to the second plate 542 is inclined, gradually inclining toward the end away from the center from the end close to the locking block 53 to the end away from the locking block 53.

[0045] A second hydraulic cylinder 551 is horizontally disposed on one side of the synchronization block 55. The second hydraulic cylinder 551 is fixedly connected to the housing 52, and the hydraulic rod of the second hydraulic cylinder 551 is fixedly connected to the synchronization block 55. The hydraulic rod of the second hydraulic cylinder 551 can drive the synchronization block 55 to slide relative to the interior of the housing 52, thereby driving the synchronization block 55 to slide relative to each other. When the synchronization block 55 moves toward the side close to the locking block 53, the synchronization block 55 pushes the two opposing synchronization plates 54 in directions of separation, compressing the second spring 543, thereby driving the locking blocks 53 in directions of separation. When the second hydraulic cylinder 551 drives the synchronization block 55 toward the side away from the locking block 53, the second spring 543 pushes the synchronization plates 54 in a direction of relative proximity, thereby driving the opposing locking blocks 53 in a direction of relative proximity.

[0046] A clamping block 56 is horizontally disposed below the linkage plate 521. The clamping block 56 is positioned opposite the annular groove 31 and is rotationally connected to the housing 52. The center of rotation between the clamping block 56 and the housing 52 is located at an end near the center of the hammer 3. When the clamping block 56 is positioned horizontally, the clamping block 56 can extend into the annular groove 31. When the clamping block 56 is rotated to a vertical position, the clamping block 56 is relatively separated from the annular groove 31.

[0047] The second hydraulic cylinder 551 drives the synchronization block 55 to move downward, driving the two opposite synchronization plates 54 to move in relatively divergent directions, so that the locking block 53 slides out of the second locking groove 524. The first spring 522 pushes the linkage plate 521 to move downward, driving the clamping block 56 to extend horizontally into the interior of the annular groove 31. When the locking block 53 is opposite to the first locking groove 523, the second hydraulic cylinder 551 drives the synchronization block 55 to move upward, and then the two synchronization plates 54 move in a relatively close direction, and the locking block 53 extends into the interior of the first locking groove 523.

[0048] When the hammer 3 needs to be lowered, the second hydraulic cylinder 551 drives the synchronous block 55 downward, driving the two opposing synchronous plates 54 to move in directions away from each other, causing the locking block 53 to slide out of the first locking groove 523. The hammer 3 descends under gravity, driving the clamping block 56 to rotate, and the clamping block 56 pushes the linkage plate 521 upward, compressing the first spring 522, and thus driving the locking block 53 to align with the second locking groove 524. The second hydraulic cylinder 551 drives the synchronous block 55 upward, pushing the two opposing synchronous plates 54 toward each other, and then the locking block 53 extends into the second locking groove 524 to lock it.

[0049] Reference Figure 4 、 Figure 5 A first position switch 57 is fixedly connected to the housing 52 at a position relative to the center of the hammer 3. A second position switch 32 is fixedly connected to the upper surface of the hammer 3 at a position relative to the first position switch 57. When the clamping jaw 51 is clamped on the hammer 3, the first position switch 57 and the second position switch 32 abut against each other. When the first position switch 57 and the second position switch 32 abut against each other, a signal is generated to control the second hydraulic cylinder 551 to operate.

[0050] The housing 52 is fixedly connected to a first magnet 58 relative to the upper surface of the hammer 3, and the upper surface of the hammer 3 is fixedly connected to a second magnet 33 relative to the position of the first magnet 58. The first magnet 58 and the second magnet 33 have opposite magnetic properties on opposite sides. When the clamp 51 is clamped on the hammer 3, the first magnet 58 and the second magnet 33 are relatively attracted to each other, thereby guiding the up and down movement of the hammer 3.

[0051] Reference Figure 1 、 Figure 2 A guide block 14 is fixedly connected to the position of the horizontal plate 11 relative to the outer shell 52. The guide block 14 is provided with a guide wall relative to the outer shell 52. The guide wall is gradually inclined in a relatively divergent direction along the height direction from top to bottom, and when the outer shell 52 moves upward, the hammer 3 can be guided by the guide wall.

[0052] The implementation principle of an electric compactor in an embodiment of the present application is: the clamping block 56 is clamped inside the clamping slot by the clamping jaw 51, and then the compacting hammer 3 is clamped by the clamping jaw 51, and the compacting hammer 3 is lifted to a predetermined height, and then the synchronization block 55 is driven downward by the second hydraulic cylinder 551, pushing the relative clamping block 56 to move in a relatively divergent direction, and then the compacting hammer 3 drives the clamping block 56 to flip over, and the compacting hammer 3 falls to perform the compacting action.

[0053] The winch 46 drives the clamping jaw 51 to move downward, and the first in-position switch 57 of the housing 52 abuts against the second in-position switch 32, so that the clamping block 56 is opposite to the annular groove 31, and the first spring 522 pushes the linkage plate 521 to move downward, so that the locking block 53 is opposite to the first locking groove 523, and the second hydraulic cylinder 551 drives the guide block 14 to move upward, driving the two relative clamping blocks 56 to move in a relatively close direction, and then the locking block 53 extends into the interior of the first locking groove 523 to lock the clamping block 56, and the pull rope 461 drives the clamping jaw 51 and the hammer 3 to move upward.

[0054] The falling distance of the clamping jaw 51 is measured by a laser rangefinder and then adjusted according to the situation. The first rotary motor 44 drives the screw rod 43 to rotate, thereby driving the lifting plate 41 to move up and down.

[0055] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An electric compactor, characterized in that: The invention comprises a support base (1), a material barrel (2) is vertically arranged below the support base (1), a compacting hammer (3) is arranged above the material barrel (2), a lifting platform (4) is arranged above the support base (1), a control structure (5) for controlling the lifting of the compacting hammer (3) is arranged on the lifting platform (4), and a lifting structure for driving the lifting platform (4) to move up and down is arranged on the support base (1); The control structure (5) includes a clamp (51), a hoist (46) is fixedly connected to the top of the lifting platform (4), a pull rope (461) is wound on the hoist (46), one end of the pull rope (461) is fixedly connected to the hoist (46), and the other end of the pull rope (461) is fixedly connected to the clamp (51), a side wall of the hammer (3) is provided with an annular groove (31), and a clamping block (56) is horizontally provided at the bottom end of the clamp (51), and the clamping block (56) can extend into the interior of the annular groove (31); The clamping jaw (51) includes a shell (52), the interior of the shell (52) is vertically slidably connected to a linkage plate (521), the top of the linkage plate (521) is vertically provided with an elastic member, the side wall of the linkage plate (521) is horizontally provided with a first locking groove (523), the linkage plate (521) is located below the first locking groove (523) and is horizontally provided with a second locking groove (524), the side wall of the linkage plate (521) is horizontally slidably connected to a locking block (53), the locking block (53) can be opposite to the first locking groove (523) and the second locking groove (524), the card block (56) is located below the linkage plate (521), and the card block (56) is rotatably connected to the shell (52), and the rotation center of the card block (56) and the shell (52) is located at one end of the linkage plate (521) close to the center of the hammer (3).

2. An electric compactor according to claim 1, characterized in that: A guide block (14) is fixedly connected to the support seat (1) at a position relative to the clamping claw, and a guide wall is provided on one side of the guide block (14) relative to the clamping claw, and the guide wall is arranged in an inclined manner.

3. The electric compactor according to claim 1, characterized in that: The bottom wall of the clamping jaw (51) is fixedly connected to a first magnet (58), and the upper surface of the hammer (3) is fixedly connected to a second magnet (33) at a position relative to the first magnet (58), and the first magnet (58) and the second magnet (33) can be relatively attracted.

4. The electric compactor according to claim 1, characterized in that: A synchronization plate (54) is horizontally arranged inside the housing (52), two linkage plates (521) are arranged opposite to each other, and two locking blocks (53) are arranged opposite to each other. The synchronization plate (54) is slidably connected to the housing (52) at a position relative to the locking block (53), and a synchronization block (55) is slidably connected between the two opposite synchronization plates (54). The synchronization block (55) is tilted relative to the side wall of the synchronization plate (54), and a first driving member for driving the synchronization block (55) to move horizontally is arranged on one side of the synchronization block (55), and a reset elastic member for driving the synchronization plate (54) to reset is arranged on the side wall of the synchronization plate (54).

5. The electric compactor according to claim 1, characterized in that: The lifting structure includes a vertically arranged screw rod (43), the screw rod (43) is threadedly connected to the lifting platform (4), the screw rod (43) is rotatably connected to the support seat (1), the support seat (1) is provided with a second driving member for driving the screw rod (43) to rotate relative to the screw rod (43), and a guide rod (45) is vertically provided at one end of the lifting platform (4) away from the screw rod (43), the guide rod (45) is slidably connected to the lifting platform (4), and the guide rod (45) is fixedly connected to the support seat (1).

6. The electric compactor according to claim 1, characterized in that: The support seat (1) includes a horizontally arranged transverse plate (11), a bottom wall of the transverse plate (11) is vertically provided with a support leg (12), and the support leg (12) includes a support leg (12) and a first hydraulic cylinder (13) vertically arranged at the top end of the support leg (12), and the first hydraulic cylinder (13) can drive the transverse plate (11) to move up and down.

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