CN211737030U

CN211737030U - Mine soil detection equipment

Info

Publication number: CN211737030U
Application number: CN202020099135.9U
Authority: CN
Inventors: 王刚
Original assignee: Beijing Kangdi Construction Engineering Consultants Co ltd
Current assignee: Beijing Kangdi Construction Engineering Consultants Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-10-23
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses a mine soil detection device, which comprises a support frame, wherein the support frame comprises support legs and a U-shaped support plate, the U-shaped support plate is provided with a measuring mechanism, and the measuring mechanism comprises a drilling assembly, a lifting assembly and a detection assembly; the U-shaped support plate comprises two limiting vertical rods and a supporting transverse plate; the lifting assembly comprises a vertical threaded rod and a lifting plate, the lower end of the vertical threaded rod is rotatably connected to the upper surface of the U-shaped support plate, a driving motor for driving the vertical threaded rod to rotate is arranged at the upper end of the vertical threaded rod, a driving threaded hole is formed in the lifting plate, the middle of the vertical threaded rod is rotatably connected into the driving threaded hole, and the lifting plate is located between the two limiting vertical rods and is vertically connected with the two limiting vertical rods in a sliding manner; the drilling subassembly is including installing in drilling motor, drilling rod and the helical blade of lifter plate upper surface, and the mounting groove has been seted up to its length direction of the upper end of drilling rod downwards, and the detection subassembly sets up in the mounting groove. The automatic digging device can realize the automatic digging function and improve the working efficiency.

Description

Mine soil detection equipment

Technical Field

The utility model relates to a mine soil detection area, in particular to mine soil check out test set.

Background

Mineral resources are important natural resources and important material bases for social production development, and the mineral resources cannot be separated from the production and the life of people in the modern society. The development of mineral resources causes mine environment problems, the normal life and social stability of the masses around the mining area are seriously influenced, and the work of recovering and governing the mine environment is very hard and heavy.

The environmental pollution in the mining process mainly comes from waste water, dust and waste residues. The waste water is discharged randomly without standard treatment, even directly into the surface water body, so that the soil is polluted. In general, in all detection of mine soil, the soil needs to be excavated, and a sensor is placed in the soil at a certain depth to detect the environmental condition of the soil.

At present survey crew is detecting the environmental aspect of mine soil, need detect the darker position in soil below, and present staff most still adopt spade or other to dig earth, wait to dig when certain degree, still need observe the degree of depth of digging, whether up to standard, not up to standard still must continue to dig, wait to reach standard after, reuse the sensor and detect, thus, very waste time and energy, and detection efficiency is low, bring the puzzlement for the staff.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a mine soil check out test set, it can realize automatic function of excavating, improves work efficiency, reduces the human cost.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the mine soil detection equipment comprises a support frame, wherein the support frame comprises support legs arranged on the ground and a U-shaped support plate fixedly arranged on the support legs, the U-shaped support plate is provided with a measuring mechanism, and the measuring mechanism comprises a drilling assembly, a lifting assembly for driving the drilling assembly to automatically drill downwards and a detection assembly for detecting the drilled holes; the U-shaped support plate comprises two limiting vertical rods and a supporting transverse plate fixedly arranged at the bottom ends of the two limiting vertical rods; the lifting assembly comprises a vertical threaded rod and a lifting plate, the lower end of the vertical threaded rod is rotatably connected to the upper surface of the supporting transverse plate, a driving motor for driving the vertical threaded rod to rotate is arranged at the upper end of the vertical threaded rod, the lifting plate is provided with a driving threaded hole, the middle part of the vertical threaded rod is rotatably connected into the driving threaded hole, and the lifting plate is positioned between the two limiting vertical rods and is vertically connected with the two limiting vertical rods in a sliding manner; the drilling assembly comprises a drilling motor arranged on the upper surface of the lifting plate, a drill rod detachably connected to an output shaft of the drilling motor and a helical blade fixedly arranged on the outer peripheral surface of the drill rod, the upper end of the drill rod is provided with a mounting groove downwards along the length direction of the drill rod, and the detection assembly is arranged in the mounting groove.

By adopting the technical scheme, the driving motor is started, the output shaft of the driving motor drives the vertical threaded rod to rotate, and the vertical threaded rod drives the lifting plate to move downwards under the limiting action of the limiting vertical rod; meanwhile, a drilling motor is started, the drilling motor drives a drill rod to rotate, and the drill rod drives a helical blade to rotate, so that the integral automatic hole rotating operation is realized; when the depth required to be detected is reached, the driving motor is driven again, the lifting plate moves upwards, the drill rod is separated from the drill hole, and the drilling is finished; then, the humidity, the temperature, the salinity, the acid-base and the like in the soil can be detected through the detection assembly. The automatic soil digging device can realize the automatic soil digging function, improve the working efficiency and reduce the labor cost.

The utility model discloses further set up to: the limiting vertical rod is provided with a sliding groove along the height direction of the limiting vertical rod, the lifting plate is provided with a sliding block, and the sliding block is connected in the sliding groove in a sliding mode.

Through adopting above-mentioned technical scheme, adopt the piece that slides and the groove matched with mode that slides, realize sliding from top to bottom of lifter plate, simple structure.

The utility model discloses further set up to: spacing montant is provided with damper in the groove that slides, damper includes compression spring, compression spring is located the below of sliding block.

Through adopting above-mentioned technical scheme, set up compression spring in the below of sliding block, when the lifter plate drove drilling rod up-and-down reciprocating motion, can reduce the vibrations of drilling rod, be favorable to going on smoothly of drilling work.

The utility model discloses further set up to: damping component still includes the shock attenuation pole, the shock attenuation pole is vertical setting, the hole of stepping down that supplies the shock attenuation pole to pass is seted up to the sliding block, the inside of arranging compression spring is worn to establish by the shock attenuation pole.

Through adopting above-mentioned technical scheme, the shock attenuation pole sets up in groove and compression spring slide, and the piece that slides wears to locate the shock attenuation pole and slides from top to bottom along the direction of height of shock attenuation pole, not only plays the effect of direction to the lifter plate, simultaneously, has strengthened damper's stability.

The utility model discloses further set up to: two the top of spacing montant is provided with horizontal backup pad, driving motor installs in the upper surface of horizontal backup pad, the via hole has been seted up to horizontal backup pad, the tip that driving motor's output shaft wore to locate behind the via hole sets firmly in the top of vertical threaded rod.

Through adopting above-mentioned technical scheme, the effect that plays the support to driving motor is played in the setting of horizontal backup pad, stability when reinforcing driving motor rotates.

The utility model discloses further set up to: the output shaft of the drilling motor is fixedly provided with a connecting shaft, the detection assembly is welded at the lower end of the connecting shaft and is positioned in the mounting groove of the drill rod, and the detection assembly comprises an outer pipe fixedly arranged at the lower end of the connecting shaft, an inner rod sleeved on the outer pipe and a sensor arranged at the bottom end of the inner rod; the lateral wall of outer tube has seted up the direction bar hole, interior pole outer peripheral face has set firmly two guide posts, two the guide post all wears to locate the direction bar hole.

Through adopting above-mentioned technical scheme, the detecting component adopts the mode that outer tube and interior pole cup jointed mutually, makes detecting component's length become very nimble, and two guide posts all pass in direction bar hole, realize the guide post in the downthehole removal of direction bar to, further realize interior pole cup joint in the relative length of outer tube, when detecting, with interior pole extension, when not detecting, make its shrink can.

The utility model discloses further set up to: the outer peripheral face of the outer pipe is provided with external threads, the outer pipe is in threaded connection with a positioning nut, the positioning nut is located between the two guide posts, and two sides of the positioning nut are respectively abutted to the two guide posts.

Through adopting above-mentioned technical scheme, adopt guide post and set nut matched with mode to reach and control the length that interior pole stretches out the outer tube among the determine module, simple structure.

The utility model discloses further set up to: the top of lifter plate is provided with the spraying subassembly that sprinkles to the soil that needs to detect, spraying subassembly is including setting firmly the water tank in the lifter plate upper surface, setting up in the shower nozzle of lifter plate lower surface and the water pipe of connecting water tank and shower nozzle, the water pipe is provided with the water pump that is used for controlling whether the shower nozzle sprays water.

Through adopting above-mentioned technical scheme, the setting of spraying the subassembly makes the soil that will detect become mud, and the sensor of being convenient for is to the detection of the inside humidity of soil, temperature, salinity and acid-base etc..

The utility model discloses further set up to: the spraying assemblies are arranged into two groups, and the two groups of spraying assemblies are positioned on the upper surface of the lifting plate close to the positions of the two sides

Through adopting above-mentioned technical scheme, two sets of settings that spray the subassembly for spray the effect better, detection effect is better.

The utility model discloses further set up to: two one side welding that drilling subassembly was kept away from to spacing montant has the connecting plate, one side that the connecting plate was kept away from spacing montant is close to bottom position department and is provided with two wheels that roll, the outer peripheral face and the ground laminating of wheel that roll, one side that the connecting plate deviates from spacing montant has set firmly the U type pushing hands in the top of the wheel that rolls.

Through adopting above-mentioned technical scheme, the setting of the wheel that rolls makes things convenient for the staff to the removal of overall device, and the setting of U type pushing hands makes things convenient for staff's promotion operation.

To sum up, the utility model discloses following beneficial effect has: starting a driving motor, driving an output shaft of the driving motor to drive a vertical threaded rod to rotate, and driving a lifting plate to move downwards by the vertical threaded rod under the limiting action of a limiting vertical rod; meanwhile, a drilling motor is started, the drilling motor drives a drill rod to rotate, and the drill rod drives a helical blade to rotate, so that the integral automatic hole rotating operation is realized; when the depth required to be detected is reached, the driving motor is driven again, the lifting plate moves upwards, the drill rod is separated from the drill hole, and the drilling is finished; and then, detecting the humidity, temperature, salinity, acid and alkali and the like in the soil. The automatic soil digging device can realize the automatic soil digging function, improve the working efficiency and reduce the labor cost.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of the overall structure of the present invention;

FIG. 4 is an enlarged view of portion B of FIG. 3;

fig. 5 is a schematic structural view of the spraying assembly, the lifting plate, the drilling motor, the connecting shaft and the detecting assembly of the present invention;

fig. 6 is an enlarged view of a portion C in fig. 5.

In the figure, 1, a support frame; 11. a support leg; 111. a base plate; 12. a U-shaped support plate; 121. a limiting vertical rod; 1211. a sliding groove; 122. supporting the transverse plate; 3. a drilling assembly; 31. a drilling motor; 311. a connecting shaft; 3111. a first mounting plate; 3112. fastening a bolt; 32. a drill stem; 321. a second mounting plate; 322. fastening a nut; 33. a helical blade; 4. a lifting assembly; 41. a vertical threaded rod; 42. a lifting plate; 421. driving the threaded hole; 422. a sliding block; 4221. a hole of abdication; 43. a drive motor; 5. a detection component; 51. an outer tube; 511. a guide strip-shaped hole; 52. an inner rod; 521. a guide post; 53. positioning a nut; 54. a sensor; 61. a compression spring; 62. a shock-absorbing lever; 7. a transverse support plate; 8. a spray assembly; 81. a water tank; 82. a water pump; 83. a spray head; 84. a water pipe; 9. a connecting plate; 91. a rolling wheel; 92. a U-shaped pushing handle; 93. a support plate; 94. and rotating the shaft.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, in order to disclose a mine soil detection device, the mine soil detection device comprises a support frame 1, the support frame 1 comprises two support legs 11 and a U-shaped support plate 12, the two support legs 11 are arranged in parallel and at intervals, the lower ends of the two support legs 11 are respectively arranged on the ground, the upper ends of the two support legs are welded on the U-shaped support plate 12, and one ends of the two support legs 11 arranged on the ground are respectively welded with a backing plate 111; the U-shaped support plate 12 comprises two vertical limiting rods 121 and a transverse supporting plate 122 welded at the bottom ends of the two vertical limiting rods 121; the upper ends of the two support legs 11 are welded to the outer side walls of the two vertical limiting rods 121 respectively, the two vertical limiting rods 121 are arranged oppositely, and the bottom ends of the two vertical limiting rods 121 are perpendicular to the upper surface of the supporting transverse plate 122; the two vertical limiting rods 121 are respectively provided with a sliding groove 1211 along the height direction, and the sliding grooves 1211 of the two vertical limiting rods 121 are arranged oppositely; the compression springs 61 and the shock absorption rods 62 penetrating through the compression springs 61 are arranged in the two sliding grooves 1211, the shock absorption rods 62 are arranged along the height direction of the vertical limiting rod 121, and the lower ends of the shock absorption rods 62 are welded on the upper surface of the supporting transverse plate 122.

A lifting assembly 4 is arranged between the two limiting vertical rods 121, the lifting assembly 4 comprises a vertical threaded rod 41, a lifting plate 42 and a driving motor 43, sliding blocks 422 are welded at two opposite ends of the lifting plate 42 respectively, and the two sliding blocks 422 are connected in two opposite sliding grooves 1211 in a sliding manner respectively; the sliding block 422 is located above the compression spring 61, the sliding block 422 is provided with a yielding hole 4221 for the shock absorption rod 62 to pass through, and the sliding block 422 is connected to the shock absorption rod 62 in a sliding manner.

The upper ends of the two vertical limiting rods 121 are provided with transverse supporting plates 7, the two ends of each transverse supporting plate 7 are respectively and integrally formed with the upper ends of the two vertical limiting rods 121, and the upper ends of the shock absorption rods 62 are welded to the lower surface of the supporting transverse plate 122; driving motor 43 installs in the upper surface of horizontal backup pad 7, and horizontal backup pad 7 has seted up the via hole in the position department of driving motor 43 output shaft, and the tip that the output shaft of driving motor 43 passed behind the via hole welds in the upper end of vertical threaded rod 41, and the lower extreme of vertical threaded rod 41 rotates to be connected in the upper surface that supports diaphragm 122, and lifter plate 42 has seted up drive screw hole 421, and the middle part of vertical threaded rod 41 rotates to be connected in drive screw hole 421.

Referring to fig. 3 and 4, the lifting plate 42 is provided with a drilling assembly 3, the drilling assembly 3 includes a drilling motor 31, a drill rod 32 and a helical blade 33, the drilling motor 31 is installed on the upper surface of the lifting plate 42, the lifting plate 42 is provided with a rotating hole at the position of the drilling motor 31, an output shaft of the drilling motor 31 is welded with a connecting shaft 311 after penetrating through the end part of the rotating hole, a first mounting plate 3111 is integrally formed at the lower end of the connecting shaft 311, a first fastening threaded hole is formed in the first mounting plate 3111, a second mounting plate 321 is integrally formed at the upper end of the drill rod 32, a second fastening threaded hole is formed in the second mounting plate 321, the first mounting plate 3111 is butted with the second mounting plate 321, and the first mounting plate 3111 and the second mounting plate 321 are detachably connected through a plurality of sets of; each group of fastening bolts 3112 and fastening nut 322 are adapted, each group of fastening bolts 3112 and fastening nut 322 are arranged along the peripheral surface of first mounting plate 3111 at equal intervals, and each group of fastening bolts 3112 is fastened by fastening nut 322 after penetrating through first fastening plate threaded holes and second fastening threaded holes.

The screw blade 33 is welded to the outer peripheral surface of the drill rod 32, and the drill rod 32 and the output shaft of the drilling motor 31 rotate coaxially.

Referring to fig. 3 and 5, an installation groove is formed in the upper end of the drill rod 32 downwards along the length direction of the drill rod, a detection assembly 5 is arranged in the installation groove, the detection assembly 5 comprises an outer tube 51, an inner rod 52, a positioning nut 53 and a sensor 54, the upper end of the outer tube 51 is welded to the lower end of the connecting shaft 311, a sleeving groove is formed in the lower end of the outer tube 51, and the inner rod 52 is sleeved in the sleeving groove of the outer tube 51.

Referring to fig. 5 and 6, the outer circumferential surface of the outer tube 51 is provided with a guide strip-shaped hole 511 arranged along the length direction thereof, and the guide strip-shaped hole 511 is communicated with the sleeving groove; two guide posts 521 are welded on the outer peripheral surface of the inner rod 52, and the two guide posts 521 pass through the guide strip-shaped holes 511. The outer circumference of the outer tube 51 is provided with an external thread, the positioning nut 53 is in threaded connection with the external thread, the positioning nut 53 is located between the two guide posts 521, and two sides of the positioning nut 53 are respectively abutted against the two guide posts 521. A sensor 54 is located at the lower end of the inner rod 52, the sensor 54 being used to detect mine soil after the inner rod 52 has been inserted into the borehole.

Referring to fig. 3 and 4, the lifting plate 42 is provided with two groups of spraying assemblies 8, the two groups of spraying assemblies 8 are arranged at intervals, and the two groups of spraying assemblies 8 are positioned between the drilling assemblies 3; each group of spraying components 8 comprises a water tank 81, a water pump 82, a water pipe 84 and two spray heads 83, wherein the water tank 81 is arranged on the upper surface of the lifting plate 42, the water inlet of the water pipe 84 is communicated with the water outlet of the water tank 81, the two water outlets of the water pipe 84 are communicated with the water inlets of the two spray heads 83, the two spray heads 83 are respectively arranged on the lifting plate 42, and the nozzles of the spray heads 83 are positioned on the lower surface of the lifting plate 42; the water pump 82 is attached to a water pipe 84, and the water pump 82 controls whether or not the head 83 sprays water.

Referring to fig. 1, a connecting plate 9 is welded on one side of each of two vertical limiting rods 121 far away from the lifting plate 42, two groups of supporting plates 93 are welded on one side of the connecting plate 9 far away from the lifting plate 42, the two groups of supporting plates 93 are arranged at intervals, two supporting plates 93 are arranged oppositely, the two supporting plates 93 are rotatably connected with two rolling wheels 91 through rotating shafts 94, the two rolling wheels 91 are two, and the two rolling wheels 91 are in one-to-one correspondence with the two groups of supporting plates 93; u-shaped push hands 92 are welded on the connecting plate 9 at positions above the two rolling wheels 91, and two ends of each U-shaped push hand 92 are welded on one side of the connecting plate 9, which is far away from the lifting plate 42.

The implementation principle of the embodiment is as follows: when the mine soil is detected, a worker pushes the whole device to a position to be detected by pushing the U-shaped push handle 92 under the action of the rolling wheel 91, the two support legs 11 are fixedly supported on the ground through the gaskets 111, the driving motor 43 is started, the output shaft of the driving motor 43 drives the vertical threaded rod 41 to rotate, and the vertical threaded rod 41 drives the lifting plate 42 to move downwards; meanwhile, the drilling motor 31 is started, the drilling motor 31 drives the drill rod 32 to rotate, and the drill rod 32 drives the helical blade 33 to rotate, so that the integral automatic hole rotating operation is realized; when the depth required to be tested is reached, the driving motor 43 is driven again, the lifting plate 42 moves upwards, the drill rod 32 is separated from the drill hole, and the drilling is finished; then, the fastening nut 322 and the fastening bolt 3112 are screwed, the drill rod 32 is disassembled, the positioning nut 53 is screwed, the inner rod 52 moves downwards to drive the sensor 54 to move downwards, when the depth required to be detected is reached, the water pump 82 is started, the spray head 83 sprays water to the soil, the soil is changed into mud, and the sensor 54 can conveniently detect the humidity, the temperature, the salinity, the acid and alkali and the like in the soil. The automatic digging machine can achieve an automatic digging function, improves working efficiency and reduces labor cost.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a mine soil check out test set which characterized in that: the device comprises a support frame (1), wherein the support frame (1) comprises a support leg (11) arranged on the ground and a U-shaped support plate (12) fixedly arranged on the support leg (11), the U-shaped support plate (12) is provided with a measuring mechanism, and the measuring mechanism comprises a drilling component (3), a lifting component (4) for driving the drilling component (3) to automatically drill downwards and a detection component (5) for detecting the drilled hole; the U-shaped support plate (12) comprises two limiting vertical rods (121) and a supporting transverse plate (122) fixedly arranged at the bottom ends of the two limiting vertical rods (121); the lifting assembly (4) comprises a vertical threaded rod (41) and a lifting plate (42), the lower end of the vertical threaded rod (41) is rotatably connected to the upper surface of the supporting transverse plate (122), a driving motor (43) for driving the vertical threaded rod (41) to rotate is arranged at the upper end of the vertical threaded rod (41), a driving threaded hole (421) is formed in the lifting plate (42), the middle of the vertical threaded rod (41) is rotatably connected into the driving threaded hole (421), and the lifting plate (42) is located between the two vertical limiting rods (121) and is vertically connected with the two vertical limiting rods (121) in a sliding manner; drilling subassembly (3) including install in drilling motor (31) of lifter plate (42) upper surface, can dismantle drilling rod (32) of connecting in drilling motor (31) output shaft and set firmly in helical blade (33) of drilling rod (32) outer peripheral face, the mounting groove has been seted up along its length direction downwards in the upper end of drilling rod (32), detection component (5) set up in the mounting groove.

2. The mine soil detection apparatus of claim 1, wherein: spacing montant (121) have seted up groove (1211) that slides along its direction of height, lifter plate (42) are provided with sliding block (422), sliding block (422) slide connect in slide groove (1211).

3. The mine soil detection apparatus of claim 2, wherein: spacing montant (121) are provided with damper in groove (1211) that slides, damper includes compression spring (61), compression spring (61) are located the below of sliding block (422).

4. The mine soil detection apparatus of claim 3, wherein: damping component still includes shock-absorbing rod (62), shock-absorbing rod (62) are vertical setting, the hole of stepping down (4221) that supplies shock-absorbing rod (62) to pass is seted up in sliding block (422), shock-absorbing rod (62) are worn to establish the inside of arranging compression spring (61).

5. The mine soil detection apparatus of claim 1, wherein: two the top of spacing montant (121) is provided with horizontal backup pad (7), driving motor (43) are installed in the upper surface of horizontal backup pad (7), the via hole has been seted up in horizontal backup pad (7), the output shaft of driving motor (43) wears to locate the top rigid coupling of tip and vertical threaded rod (41) behind the via hole.

6. The mine soil detection apparatus of claim 1, wherein: an output shaft of the drilling motor (31) is fixedly provided with a connecting shaft (311), the detection assembly (5) is welded at the lower end of the connecting shaft (311) and is positioned in a mounting groove of the drill rod (32), and the detection assembly (5) comprises an outer pipe (51) fixedly arranged at the lower end of the connecting shaft (311), an inner rod (52) sleeved on the outer pipe (51) and a sensor (54) arranged at the bottom end of the inner rod (52); the lateral wall of outer tube (51) has seted up direction strip hole (511), interior pole (52) periphery sets firmly two guide post (521), two guide post (521) all wear to locate direction strip hole (511).

7. The mine soil detection apparatus of claim 6, wherein: the outer circumference of the outer pipe (51) is provided with external threads, the outer pipe (51) is in threaded connection with a positioning nut (53), the positioning nut (53) is located between the two guide columns (521), and two sides of the positioning nut (53) are respectively abutted to the two guide columns (521).

8. The mine soil detection apparatus of claim 1, wherein: the top of lifter plate (42) is provided with sprays subassembly (8) that sprinkles to the soil that needs to detect, spray subassembly (8) including set firmly in water tank (81) of lifter plate (42) upper surface, set up in shower nozzle (83) of lifter plate (42) lower surface and water pipe (84) of connecting water tank (81) and shower nozzle (83), water pipe (84) are provided with water pump (82) that are used for controlling whether shower nozzle (83) spray water.

9. The mine soil detection apparatus of claim 8, wherein: the spraying assemblies (8) are arranged into two groups, and the two groups of spraying assemblies (8) are positioned on the upper surfaces of the lifting plates (42) close to the positions of the two sides.

10. The mine soil detection apparatus of claim 1, wherein: two one side welding that drilling subassembly (3) was kept away from in spacing montant (121) has connecting plate (9), one side that deviates from spacing montant (121) is kept away from in connecting plate (9) is close to bottom position department and is provided with two wheels (91) that roll, the outer peripheral face and the ground laminating of wheel (91) roll, one side that deviates from spacing montant (121) in connecting plate (9) has set firmly U type pushing hands in the top of wheel (91) roll.