CN211008509U - Lifting mechanism of double-wheel milling stirrer and double-wheel milling stirrer - Google Patents
Lifting mechanism of double-wheel milling stirrer and double-wheel milling stirrer Download PDFInfo
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- CN211008509U CN211008509U CN201922100425.0U CN201922100425U CN211008509U CN 211008509 U CN211008509 U CN 211008509U CN 201922100425 U CN201922100425 U CN 201922100425U CN 211008509 U CN211008509 U CN 211008509U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 92
- 238000003801 milling Methods 0.000 title claims abstract description 23
- 238000005553 drilling Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 244000261422 Lysimachia clethroides Species 0.000 claims abstract description 6
- 239000004519 grease Substances 0.000 claims description 30
- 210000002445 nipple Anatomy 0.000 claims description 17
- 230000000712 assembly Effects 0.000 claims description 15
- 238000000429 assembly Methods 0.000 claims description 15
- 230000001050 lubricating effect Effects 0.000 claims description 11
- 239000003344 environmental pollutant Substances 0.000 claims description 7
- 231100000719 pollutant Toxicity 0.000 claims description 7
- 230000009977 dual effect Effects 0.000 claims 9
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000003756 stirring Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 241000272814 Anser sp. Species 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
A lifting mechanism of a double-wheel milling stirrer and the double-wheel milling stirrer are disclosed, wherein the lifting mechanism comprises a lifting frame, a movable pulley, a guide part, a pressure plate assembly and a front panel; two symmetrical pressure plate components are respectively arranged on two sides of the rear end of the lifting frame, the pressure plate components and the lifting frame form a groove-shaped slideway, and a sliding block is arranged in the groove-shaped slideway and used for realizing sliding on a mast of a drilling machine; the movable pulley is arranged in the middle of the lifting frame through a pin shaft I, and a steel wire rope on the main winch sequentially passes through a pulley block of a gooseneck pulley yoke fixed at the top end of the mast of the drilling machine and the movable pulley on the lifting frame and is finally fixed on the gooseneck pulley yoke; the front panel is fixed on the lifting frame through a pin shaft II; the guide member is installed between the lifting frame and the front panel to prevent the drill rod from contacting the lifting frame. The utility model ensures that the drill rod is in the middle position after the process of clamping the drill rod, and effectively reduces the shaking; the movable pulley is arranged on the lifting frame, so that the lifting capacity of the lifting mechanism is increased.
Description
Technical Field
The utility model relates to a double round mills the mixer specifically is a double round mills mixer hoist mechanism, belongs to the double round and mills mixer hoist mechanism technical field.
Background
A double-wheel milling stirrer is equipment for stirring wall forming construction of complex strata, in particular to stirring wall forming equipment which can realize continuous wall construction of complex strata such as hard strata, rocks, pebbles and the like, and can lift a drill rod and inject cement paste at the same time, and is mainly used for realizing drilling of hard strata and grouting and stirring wall forming.
At present, various double round mills mixer structures at home and abroad are roughly the same, mainly by chassis, running gear, rotation mechanism, luffing mechanism, mast mechanism, install assembly pulley, hoist mechanism, the loading system at mast mechanism top and constitute, in the in-service use, have following defect:
1. the mode that the tight drilling rod of clamp in the hoist mechanism of double round milling stirring rig adopts single cylinder structure, easily makes the drilling rod skew about pressing from both sides tight in-process, and at the promotion in-process, the drilling rod can appear rocking.
2. In order to ensure that the hoisting machine has larger hoisting force, the hoisting machine is generally adopted to hoist in a way of matching four-multiplying-power or eight-multiplying-power pulley blocks, the hoisting force is larger, and the requirement is met. But the pulley block in the lifting mechanism is more complicated, the used steel wire rope is longer, the frictional resistance is large, and the efficiency is low.
3. The guide wheel of the lifting mechanism is arranged on one side in the vertical direction, and has poor guidance quality, so that the lifting mechanism can grind a drill rod in the lifting and lowering process, and the service life of the drill rod and the lifting mechanism is shortened.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a lifting mechanism of a double-wheel milling mixer, a double-oil-cylinder clamping mechanism effectively avoids the deviation and shaking of a drill rod; by increasing the lifting force of the winch and matching with the double-rate pulley, the mechanical efficiency is improved while the lifting force of the lifting mechanism is ensured; the guide of the rollers on the upper side and the lower side is adopted, the guidance quality is good, and the grinding of a lifting mechanism and a drill rod is avoided.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
a lifting mechanism of a double-wheel milling mixer comprises a lifting frame, a movable pulley, a guide part, a pressure plate assembly and a front panel; two symmetrical pressing plate assemblies are respectively arranged on two sides of the rear end of the lifting frame, the pressing plate assemblies and the lifting frame form a groove-shaped slideway, and a sliding block is arranged in the groove-shaped slideway and used for realizing sliding on a mast of a drilling machine; the movable pulley is arranged in the middle of the lifting frame through a pin shaft I, and a steel wire rope on the main winch sequentially penetrates through a pulley block of a gooseneck pulley frame fixed at the top end of the mast of the drilling machine and the movable pulley on the lifting frame and is finally fixed on the gooseneck pulley frame; the front panel is fixed on the lifting frame through a pin shaft II; the guide member is installed between the lifting frame and the front panel to prevent the drill rod from contacting the lifting frame.
Further, the guide part comprises two groups of roller assemblies; the two groups of roller assemblies are arranged in a square frame consisting of the lifting frame and the front panel from top to bottom, the roller assemblies arranged from top to bottom are distributed around the drill rod, and the upper side and the lower side of the drill rod are limited between the four rollers respectively so as to prevent the drill rod from deflecting.
Furthermore, each group of roller components consists of a roller a and three rollers b; wherein, the upper and lower parts of the side wall of the lifting frame close to the movable pulley are respectively provided with a roller a; and two side walls and a front panel of the lifting frame are respectively provided with a roller b up and down.
Further, the roller b comprises a pin shaft III, an outer wheel I and a roller bracket; the pin shaft III is provided with paired bearings II, and outer wheels I are arranged outside the bearings II; each side bearing II is axially fixed by pressing an end cover I, and the end cover I is fixed on an outer wheel I through a screw I; a shaft sleeve I is arranged between the end cover I and the bearing II, two ends of a pin shaft III are respectively provided with a roller support, a baffle I is arranged at one axial surface of the pin shaft III, the baffle I is arranged on the outer side of the roller support, the baffle I realizes the axial fixation of the pin shaft III on the roller support, and then the roller support is fixed on the inner wall of the square frame through a bolt III; a countersunk threaded hole is formed in one axial surface of the pin shaft III, a grease nipple I is installed on the countersunk threaded hole, and a cavity is formed between the outer wheel I and the pin shaft III so as to allow lubricating grease filled from the grease nipple I to pass through.
Furthermore, a framework oil seal I is arranged between the shaft sleeve I and the end cover I, so that lubricating grease is effectively prevented from flowing outwards, and pollutants are blocked; the end cover I is provided with a groove, and an O-shaped ring I is arranged in the groove.
Further, the roller a comprises a pin shaft IV, an outer wheel II and a mounting seat; paired bearings III are arranged on the pin shaft IV, and an outer wheel II is arranged outside the bearings III; the bearing III on each side is axially fixed by pressing an end cover II, and the end cover II is fixed on an outer wheel II through a screw II; a shaft sleeve II is arranged between the end cover II and the bearing III, two ends of a pin shaft IV are respectively provided with a mounting seat, the pin shaft IV is pressed on the mounting seats through a pressing plate, then the pressing plate is fastened through a screw III, and the mounting seats are welded on a lifting frame; the outer wheel II is provided with a countersunk threaded hole, the grease nipple II is installed at the countersunk threaded hole, and a cavity is formed between the outer wheel II and the pin shaft IV so as to allow lubricating grease filled from the grease nipple II to pass through.
Furthermore, the outer diameter of the end cover II is slightly smaller than that of the outer wheel II, so that the phenomenon that the guided object collides with the end cover II to shorten the service life of the roller is avoided.
Furthermore, a framework oil seal II is arranged between the shaft sleeve II and the end cover II, so that lubricating grease is effectively prevented from flowing outwards, and pollutants are blocked; the end cover II is provided with a groove, and an O-shaped ring II is arranged in the groove; and a gasket is arranged at the contact part of the end cover II and the end face of the outer wheel.
Furthermore, two end faces of the pin shaft IV are provided with axial planes, and the pressing plate is provided with an inner groove matched with the pin shaft IV, so that the pin shaft IV is effectively prevented from rotating.
Further, clamp plate subassembly one end is passed through bolt IV and is fixed on the hoisting frame, and the clamp plate subassembly other end passes through bolt I with the hoisting frame to be connected with the nut, and the otic placode round hole diameter is greater than the round hole on the hoisting frame otic placode on the clamp plate subassembly to make the clamp plate subassembly can rotate around bolt I after bolt IV is torn open.
Further, the lifting mechanism further comprises a clamping member; the clamping components are arranged on two sides of the lifting frame and used for clamping and centering the drill rod, so that the lifting mechanism can drive the drill rod to realize stable lifting and lowering.
Furthermore, the clamping part adopts a clamping oil cylinder, the clamping oil cylinder is fixed on the lifting frame through a bolt II and is connected with the push plate through a screw IV, and the push plate is placed in a groove of the lifting frame.
A double-wheel milling stirrer comprises a chassis, a traveling mechanism, a swing mechanism, a luffing mechanism and a mast mechanism, wherein a goose head pulley frame, a pressurizing mechanism, a milling device and the lifting mechanism are mounted on the mast mechanism.
The utility model discloses beneficial effect:
the clamping part of the lifting mechanism of the utility model adopts the arrangement of the oil cylinders at two sides, thus effectively ensuring that the drill rod is in the center position in the clamping process and preventing left and right deflection, and avoiding the left and right shaking of the drill rod due to the rigid fixation of the cylinder barrel, thereby ensuring the stability and the safety of the drill rod in the lifting and lowering processes; in addition, after a steel wire rope of the main winch is wound by the movable pulley, the lifting force borne by the pulley is twice of the single-rope tension, so that the movable pulley is added in the lifting mechanism, the lifting force of the lifting mechanism can be increased under the condition that the steel wire rope tension is not changed, the lifting mechanism can be ensured to lift a drill rod under dangerous conditions, the drill rod and the milling device are prevented from being buried, and the number of the pulleys is fixed to be one in order to ensure the efficiency; meanwhile, the rollers are arranged in the upper direction and the lower direction of the lifting frame, the guidance of the two sets of rollers is better than that of a single set of rollers, the gap between each roller and the drill rod is smaller, the deflection amount of the drill rod can be reduced, the drill rod can be effectively prevented from being in contact with the lifting frame, the abrasion of structural members is avoided, and the service life is prolonged. Therefore, the drilling rod shaking is reduced in the process of putting the double-wheel stirring and milling head into a drill and lifting the double-wheel stirring and milling head, the possibility of deflection of the continuous wall is reduced, and the wall forming quality is better.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is an isometric view of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a top view of the present invention;
fig. 4 is a right side view of the present invention;
FIG. 5 is a sectional view taken along line A-A of FIG. 2;
FIG. 6 is a view from the B-B direction of FIG. 2;
FIG. 7 is a view taken along line C of FIG. 2;
FIG. 8 is a view from D-D of FIG. 3;
FIG. 9 is a view from E-E of FIG. 3;
FIG. 10 is an isometric view of roller b;
FIG. 11 is a cross-sectional view of the roller of FIG. 10;
FIG. 12 is an isometric view of roller a;
FIG. 13 is a partial block diagram of FIG. 12;
FIG. 14 is a cross-sectional view of FIG. 12;
fig. 15 is an enlarged view of a portion a in fig. 14.
In the figure: 1. a goose head pulley frame, 2, a steel wire rope, 3, a main winch, 4, a drilling machine mast, 5, a milling device, 6, a pressurizing mechanism, 7, a drill rod, 8, a lifting mechanism, 9, a nut, 10, a bolt I, 11, a lifting frame, 12, a pin shaft I, 13, a movable pulley, 14, a clamping cylinder, 15, a bolt II, 16, an outer wheel I, 17, a front panel, 18, a bolt III, 19, a baffle II, 20, a sliding block, 21, a pressure plate component, 22, a bolt IV, 23, a pin shaft III, 24, a roller bracket, 25, a roller, 26, a screw IV, 27, a push plate, 28, a pin shaft II, 29, a bearing I, 30, a grease nipple III, 31, a bolt V, 32, a bearing II, 33, an end cover I, 34, a screw I, 35, a shaft sleeve I, 36, a baffle I, 37, a grease nipple I, 38, a framework I, 39, an O-shaped ring, 101, a mounting seat, 102, a pressure plate, 103 and a shaft sleeve, 104. end covers II, 105, bearings III, 106, grease nozzles II, 107, screws II, 108, outer wheels II, 109, pin shafts IV, 110, framework oil seals II, 111, O-shaped rings II, 112, gaskets, 113 and screws III.
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to perform more detailed description on the technical solution in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in FIG. 1, the lifting mechanism 8 of the double-wheel milling mixer comprises a lifting frame 11, a movable pulley 13, a guide part, a pressure plate assembly 21 and a front panel 17; two symmetrical pressure plate assemblies 21 are respectively arranged on two sides of the rear end of the lifting frame 11, the pressure plate assemblies 21 and the lifting frame 11 form a groove-shaped slideway, a sliding block 20 is arranged in the groove-shaped slideway to realize sliding on the mast 4 of the drilling machine, and the assembly clearance between the two is controlled to be 2-3 mm; the movable pulley 13 is installed in the middle of the lifting frame 11 through a pin shaft I12, a steel wire rope 2 on the main winch 3 sequentially penetrates through a pulley block of the goose head pulley frame 1 fixed at the top end of the drill mast 4 and the movable pulley 13 on the lifting frame 11, and is finally fixed on the goose head pulley frame 1, a movable pulley is added in the lifting device, and the steel wire rope of the main winch winds the movable pulley, so that a lifting force front panel 17 which is twice the pulling force of the rope of the lifting mechanism can be fixed on the lifting frame 11 through a pin shaft II 28; guide members are mounted between the lifting frame 11 and the front panel 17 to prevent contact of the drill rod 7 with the lifting frame 11.
It should be noted that the lifting frame 11 may adopt a box-shaped welded structure, which has good bending and torsion resistance and large bearing capacity.
A preferred embodiment of the above embodiment is given below with respect to the guide member:
as shown in fig. 2, 3, 4, 6 and 7, the guide part includes two sets of roller assemblies; the two groups of roller assemblies are arranged up and down in a square frame consisting of the lifting frame 11 and the front panel 17, the up and down arranged roller assemblies are distributed around the drill rod 7, and the upper side and the lower side of the drill rod 7 are respectively limited in the middle of four rollers so as to prevent the drill rod 7 from deflecting.
Further scheme: each group of roller components consists of a roller a and three rollers b; wherein, the upper and lower parts of the side wall of the lifting frame 11 close to the movable pulley 13 are respectively provided with a roller a; two side walls of the lifting frame 11 and the front panel 17 are respectively provided with a roller b up and down.
A preferred embodiment of the above embodiment is given below with respect to roller b:
as shown in fig. 10 and 11, the roller b comprises a pin shaft iii 23, an outer wheel i 16 and a roller bracket 24; the pin shaft III 23 is provided with paired bearings II 32, and an outer wheel I16 is arranged outside the bearings II 32; each side bearing II 32 is axially fixed by pressing an end cover I33, and the end cover I33 is fixed on the outer wheel I16 through a screw I34; a shaft sleeve I35 is arranged between an end cover I33 and a bearing II 32, two ends of a pin shaft III 23 are respectively provided with a roller support 24, a baffle I36 is arranged on one axial surface of the pin shaft III 23, the baffle I36 is arranged on the outer side of the roller support 24, the baffle I36 realizes the axial fixation of the pin shaft III 23 on the roller support 24, and then the roller support 24 is fixed on the inner wall of the square frame through a bolt III 18; a countersunk threaded hole is formed in one axial surface of the pin shaft III 23, the grease nipple I37 is mounted on the countersunk threaded hole, and a cavity is formed between the outer wheel I16 and the pin shaft III 23 so as to allow grease filled from the grease nipple I37 to pass through.
A framework oil seal I38 is arranged between the shaft sleeve I35 and the end cover I33, so that lubricating grease is effectively prevented from flowing outwards, and pollutants are blocked; the end cover I33 is provided with a groove, and an O-shaped ring I is arranged in the groove.
A preferred embodiment of the above embodiment is given below with respect to roller a:
as shown in fig. 12, 13, 14 and 15, the roller a comprises a pin shaft iv 109, an outer wheel ii 108 and a mounting seat 101; a pair of bearings III 105 are arranged on the pin shaft IV 109, and an outer wheel II 108 is arranged outside the bearings III 105; the bearing III 105 on each side is axially fixed by compressing an end cover II 104, and the end cover II 104 is fixed on an outer wheel II 108 through a screw II 107; a shaft sleeve II 103 is arranged between the end cover II 104 and the bearing III 105, two ends of a pin shaft IV 109 are respectively provided with a mounting seat 101, the pin shaft IV 109 is pressed on the mounting seat 101 through a pressing plate 102, then the pressing plate 102 is fastened through a screw III 113, and the mounting seat 101 is welded on the lifting frame 11; the outer wheel II 108 is provided with a countersunk threaded hole, the grease nipple II 106 is installed on the countersunk threaded hole, and a cavity is formed between the outer wheel II 108 and the pin shaft IV 109 so as to allow lubricating grease filled from the grease nipple II 106 to pass through.
The outer diameter of the end cover II 104 is slightly smaller than that of the outer wheel II 108, so that guided objects are prevented from colliding with the end cover II 104, and the service life of the roller is shortened.
A framework oil seal II 110 is arranged between the shaft sleeve II 103 and the end cover II 104, so that lubricating grease is effectively prevented from flowing outwards, and pollutants are blocked; the end cover II 104 is provided with a groove, and an O-shaped ring II 111 is arranged in the groove; and a gasket 112 is arranged at the contact part of the end cover II 104 and the end face of the outer wheel.
Two end faces of the pin shaft IV 109 are provided with axial planes, and an inner groove matched with the pin shaft IV 109 is formed in the pressure plate 102, so that the pin shaft IV 109 is effectively prevented from rotating.
The two ends of the pin shaft are pressed by the pressing plate 102 and the mounting seat 101 for preventing the guide roller from rotating, so that the pin shaft IV 109 is prevented from axially moving and rotating around a shaft, and compared with a common cotter pin, the guide roller can effectively prevent the pin shaft from axially moving and is more reliable; ordinary round pin axle adopts unilateral structure to prevent changeing and prevents scurrying the design, need extract the round pin axle from one side during the dismantlement, perhaps together pull down together with round pin axle support, and the utility model discloses a pull down the clamp plate, can directly take out the round pin axle, do not need very big axial space, only tear open the round pin axle, it is very convenient.
To bearing III 105 axial spacing, the utility model discloses a telescopic mode. Because the retaining ring is adopted for fixing, the pin shaft is required to be grooved, and the strength of the pin shaft is greatly weakened. The sleeve is adopted, so that the problem is avoided, and the strength of the pin shaft is ensured.
In order to better lubricate the bearing and effectively seal, and combine the specific structure of the guide roller of the utility model. The utility model discloses II 108 in the foreign steamer at place are opened there is the countersunk head screw hole, and back packing is II 106 in the grease nipple to avoid from II 106 in a side-mounting grease nipple of round pin axle, when not influencing round pin axle rigidity intensity, required oiling pressure is littleer. A framework oil seal II 110 is arranged at the inner diameter of the end cover II 104, an O-shaped ring II 111 is arranged at the outer diameter of the end cover II 104, and a gasket 112 is arranged on the end face, combined with the roller, of the end cover II 104, so that pollutants are better prevented from entering a sealing cavity.
As shown in figure 8, clamp plate subassembly one end is passed through bolt IV 22 and is fixed on hoisting frame 11, and the clamp plate subassembly other end passes through bolt I10 with hoisting frame 11 and is connected with nut 9, and the otic placode round hole diameter is greater than the round hole on the hoisting frame otic placode on the clamp plate subassembly to make the clamp plate subassembly can rotate around bolt I10 after bolt IV 22 is torn down.
As shown in fig. 5, the lifting mechanism 8 further includes a gripping member; the clamping members are mounted on both sides of the hoisting frame 11 for clamping and centering the drill rod 7, so that the hoisting mechanism 8 can drive the drill rod 7 to realize stable hoisting and lowering.
The preferred scheme is as follows: the clamping part adopts a clamping oil cylinder 14, the clamping oil cylinder 14 is fixed on the lifting frame 11 through a bolt II 15 and is connected with a push plate 27 through a screw IV 26, the push plate 27 is placed in a groove of the lifting frame 11, and the push plate is driven by the push and pull of the oil cylinder to realize linear reciprocating motion.
As shown in fig. 9, the movable pulley 13 comprises a roller 25, a pin shaft, a bearing i 29 and a baffle ii 19; the roller 25 is arranged in the middle of the elevator 11 through a pin shaft, a bearing I29 is arranged between the pin shaft and the roller 25, the pin shaft is fixed through a baffle II 19 and a bolt V31, and a grease nipple III is arranged on the axial surface of the pin shaft.
The specific working mode is as follows:
when the lifting mechanism 8 needs to lift the drill rod 7: firstly, the pressurizing mechanism 6 moves to a groove on the drill rod 7 along the guide rail of the drill mast 4 and clamps the drill rod 7, then the lifting mechanism 8 moves the drill mast 4 to support another groove on the drill rod 7, then the piston rod of the clamping oil cylinder 14 extends out, and pushes the push plate 27 to move along the groove in the lifting frame 11 (the screw does not contact the piston rod to be stressed) until the two clamping oil cylinders 14 contact and clamp the drill rod 7; subsequently, the pressurizing mechanism 6 releases the drill rod 7; then, the main winch 3 rotates, the movable pulley 13 is lifted by the steel wire rope 2, and then the lifting action of the lifting mechanism 8 is realized, so that the drill rod 7 is driven to be lifted upwards. After the drill rod 7 is lifted to a certain height, the main winch 3 stops moving, the lifting mechanism 8 stops lifting along with the main winch, the pressurizing mechanism 6 slides along the guide rail, the groove on the nearby drill rod 7 is found again, and the drill rod 7 is clamped. The piston rod of the clamping cylinder 14 in the lifting mechanism 8 is then retracted and the push plate 27 is retracted by means of the screw iv 26, releasing the drill rod 7. And then the steel wire rope 2 is placed downwards through the main winch 3, the lifting mechanism 8 moves downwards along the guide rail of the mast 4 of the drilling machine under the action of gravity, the drill rod 7 is clamped again after the drill rod moves to a proper position, and the pressurizing mechanism 6 is enabled to loosen the drill rod 7 to realize the lifting action again. The continuous lifting of the drill rod 7 can be realized by the repeated circulation.
When the lifting mechanism 8 needs to lower the drill rod 7: firstly, the pressurizing mechanism 6 moves to a groove on the drill rod 7 along the guide rail of the drill mast 4 and clamps the drill rod 7, then the lifting mechanism 8 moves the drill mast 4 to support another groove on the drill rod 7, then the piston rod of the clamping oil cylinder 14 extends out, and pushes the push plate 27 to move along the groove in the lifting frame 11 (the screw does not contact the piston rod to be stressed) until the two clamping oil cylinders 14 contact and clamp the drill rod 7; subsequently, the pressurizing mechanism 6 releases the drill rod 7; then, the main winch 3 rotates to lower the steel wire rope 2, and the lifting mechanism still has tension, so that the lowering action of the lifting mechanism is realized, and the drill rod 7 is lowered under the action of gravity at a controllable speed. After the drill rod 7 is lowered to a certain height, the main winch 3 stops moving, the lifting mechanism 8 stops lowering, the pressurizing mechanism 6 slides along the guide rail, the groove of the drill rod 7 nearby is found again, and the drill rod 7 is clamped. The piston rod of the clamping cylinder 14 in the lifting mechanism 8 is then retracted and the push plate 27 is retracted by means of the screw iv 26, releasing the drill rod 7. Then the steel wire rope 2 is lifted by the main winch 3, the lifting mechanism 8 moves upwards along the guide rail of the mast 4 of the drilling machine under the action of gravity, the drill rod 7 is clamped again after the drill rod moves to a proper position, and the pressurizing mechanism 6 is enabled to loosen the drill rod 7 to realize the lowering action again. The drilling rod 7 can be continuously lowered through repeated circulation.
To sum up, the clamping part of the lifting mechanism of the utility model adopts the arrangement of the oil cylinders at two sides, thus effectively ensuring that the drill rod is in the center position in the clamping process, preventing left and right deflection, and avoiding the left and right shaking of the drill rod due to the rigid fixation of the cylinder barrel, thereby ensuring the stability and the safety of the drill rod in the lifting and lowering processes; in addition, after a steel wire rope of the main winch is wound by the movable pulley, the lifting force borne by the pulley is twice of the single-rope tension, so that the movable pulley is added in the lifting mechanism, the lifting force of the lifting mechanism can be increased under the condition that the steel wire rope tension is not changed, the lifting mechanism can be ensured to lift a drill rod under dangerous conditions, the drill rod and the milling device are prevented from being buried, and the number of the pulleys is fixed to be one in order to ensure the efficiency; meanwhile, the rollers are arranged in the upper direction and the lower direction of the lifting frame, the guidance of the two sets of rollers is better than that of a single set of rollers, the gap between each roller and the drill rod is smaller, the deflection amount of the drill rod can be reduced, the drill rod can be effectively prevented from being in contact with the lifting frame, the abrasion of structural members is avoided, and the service life is prolonged. Therefore, the drilling rod shaking is reduced in the process of putting the double-wheel stirring and milling head into a drill and lifting the double-wheel stirring and milling head, the possibility of deflection of the continuous wall is reduced, and the wall forming quality is better.
The utility model also provides a double round mills mixer, including chassis, running gear, rotation mechanism, luffing mechanism, mast mechanism install goose head pulley yoke 1, loading system 6, milling equipment 5 and aforementioned hoist mechanism 8 in the mast mechanism.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (13)
1. The utility model provides a double round mills mixer hoist mechanism which characterized in that: the lifting mechanism (8) comprises a lifting frame (11), a movable pulley (13), a guide component, a pressure plate component (21) and a front panel (17);
two symmetrical pressure plate assemblies (21) are respectively arranged on two sides of the rear end of the lifting frame (11), the pressure plate assemblies (21) and the lifting frame (11) form a groove-shaped slideway, and a sliding block (20) is arranged in the groove-shaped slideway and used for realizing sliding on a mast (4) of the drilling machine;
the movable pulley (13) is arranged in the middle of the lifting frame (11) through a pin shaft I (12), and a steel wire rope (2) on the main winch (3) sequentially penetrates through a pulley block of the gooseneck pulley frame (1) fixed at the top end of the drill mast (4) and the movable pulley (13) on the lifting frame (11) and is finally fixed on the gooseneck pulley frame (1);
the front panel (17) is fixed on the lifting frame (11) through a pin shaft II (28);
the guide member is mounted between the lifting frame (11) and the front panel (17) to prevent contact of the drill rod (7) with the lifting frame (11).
2. The dual wheel mill mixer lifting mechanism of claim 1, wherein: the guide part comprises two groups of roller assemblies;
the two groups of roller assemblies are arranged in a square frame consisting of a lifting frame (11) and a front panel (17) from top to bottom, the roller assemblies arranged from top to bottom are distributed around the drill rod (7), and the upper side and the lower side of the drill rod (7) are limited between the four rollers respectively so as to prevent the drill rod (7) from deflecting.
3. The two-wheel mill mixer lifting mechanism of claim 2, wherein: each group of roller components consists of a roller a and three rollers b;
wherein, the upper and lower parts of the side wall of the lifting frame (11) close to the movable pulley (13) are respectively provided with a roller a;
two side walls of the lifting frame (11) and the front panel (17) are respectively provided with a roller (b) up and down.
4. The dual wheel mill mixer lifting mechanism of claim 3 wherein: the roller b comprises a pin shaft III (23), an outer wheel I (16) and a roller bracket (24);
the pin shaft III (23) is provided with paired bearings II (32), and an outer wheel I (16) is arranged outside the bearings II (32);
each side bearing II (32) is axially fixed by pressing an end cover I (33), and the end cover I (33) is fixed on the outer wheel I (16) through a screw I (34);
a shaft sleeve I (35) is arranged between the end cover I (33) and the bearing II (32), two ends of a pin shaft III (23) are respectively provided with a roller bracket (24), a baffle I (36) is arranged on one axial surface of the pin shaft III (23), the baffle I (36) is installed on the outer side of the roller bracket (24), the baffle I (36) realizes the axial fixation of the pin shaft III (23) on the roller bracket (24), and then the roller bracket (24) is fixed on the inner wall of the square frame through a bolt III (18);
a countersunk threaded hole is formed in one axial surface of the pin shaft III (23), the grease nipple I (37) is installed on the countersunk threaded hole, and a cavity is formed between the outer wheel I (16) and the pin shaft III (23) so as to allow lubricating grease filled from the grease nipple I (37) to pass through.
5. The dual wheel mill mixer lifting mechanism of claim 4 wherein: a framework oil seal I (38) is arranged between the shaft sleeve I (35) and the end cover I (33), so that lubricating grease is effectively prevented from flowing outwards, and pollutants are blocked;
the end cover I (33) is provided with a groove, and an O-shaped ring I is arranged in the groove.
6. The dual wheel mill mixer lifting mechanism of claim 3 wherein: the roller a comprises a pin shaft IV (109), an outer wheel II (108) and a mounting seat (101);
paired bearings III (105) are arranged on the pin shaft IV (109), and an outer wheel II (108) is arranged outside the bearings III (105);
the bearing III (105) on each side is axially fixed by pressing an end cover II (104), and the end cover II (104) is fixed on an outer wheel II (108) by a screw II (107);
a shaft sleeve II (103) is arranged between the end cover II (104) and the bearing III (105), two ends of a pin shaft IV (109) are respectively provided with a mounting seat (101), the pin shaft IV (109) is pressed on the mounting seats (101) through a pressing plate (102), then the pressing plate (102) is fastened through a screw III (113), and the mounting seats (101) are welded on the lifting frame (11);
the outer wheel II (108) is provided with a countersunk threaded hole, the grease nipple II (106) is installed on the countersunk threaded hole, and a cavity is formed between the outer wheel II (108) and the pin shaft IV (109) so as to allow lubricating grease filled from the grease nipple II (106) to pass through.
7. The dual wheel mill mixer lifting mechanism of claim 6, wherein: the outer diameter of the end cover II (104) is slightly smaller than that of the outer wheel II (108) so as to prevent guided objects from colliding with the end cover II (104) to shorten the service life of the roller.
8. The dual wheel mill mixer lifting mechanism of claim 6, wherein: a framework oil seal II (110) is arranged between the shaft sleeve II (103) and the end cover II (104), so that lubricating grease is effectively prevented from flowing outwards, and pollutants are blocked;
the end cover II (104) is provided with a groove, and an O-shaped ring II (111) is arranged in the groove;
and a gasket (112) is arranged at the contact part of the end cover II (104) and the end surface of the outer wheel.
9. The dual wheel mill mixer lifting mechanism of claim 6, wherein: two end faces of the pin shaft IV (109) are provided with axial planes, and an inner groove matched with the pin shaft IV (109) is formed in the pressing plate (102), so that the pin shaft IV (109) is effectively prevented from rotating.
10. The lifting mechanism of a two-wheel milling blender as claimed in claim 1, wherein: one end of the pressing plate assembly is fixed on the lifting frame (11) through a bolt IV (22), the other end of the pressing plate assembly is connected with the lifting frame (11) through a bolt I (10) and a nut (9), and the diameter of a circular hole of an upper lug plate of the pressing plate assembly is larger than that of a circular hole in an lug plate of the lifting frame, so that the pressing plate assembly can rotate around the bolt I (10) after the bolt IV (22) is disassembled.
11. The dual wheel mill mixer lifting mechanism of claim 1, wherein: the lifting mechanism (8) further comprises a clamping member; the clamping components are arranged on two sides of the lifting frame (11) and used for clamping and centering the drill rod (7), so that the lifting mechanism (8) can drive the drill rod (7) to realize stable lifting and lowering.
12. The dual wheel mill mixer lifting mechanism of claim 11, wherein: the clamping part adopts a clamping oil cylinder (14), the clamping oil cylinder (14) is fixed on the lifting frame (11) through a bolt II (15) and is connected with a push plate (27) through a screw IV (26), and the push plate (27) is placed in a groove of the lifting frame (11).
13. Double round mills mixer, including chassis, running gear, rotation mechanism, luffing mechanism, mast mechanism, its characterized in that: a goosehead pulley yoke (1), a pressurizing mechanism (6), a milling device (5) and a lifting mechanism (8) according to any one of claims 1 to 12 are mounted on the mast mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922100425.0U CN211008509U (en) | 2019-11-29 | 2019-11-29 | Lifting mechanism of double-wheel milling stirrer and double-wheel milling stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922100425.0U CN211008509U (en) | 2019-11-29 | 2019-11-29 | Lifting mechanism of double-wheel milling stirrer and double-wheel milling stirrer |
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| Publication Number | Publication Date |
|---|---|
| CN211008509U true CN211008509U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922100425.0U Active CN211008509U (en) | 2019-11-29 | 2019-11-29 | Lifting mechanism of double-wheel milling stirrer and double-wheel milling stirrer |
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| CN (1) | CN211008509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748308A (en) * | 2019-11-29 | 2020-02-04 | 徐州徐工基础工程机械有限公司 | Double round mills mixer hoist mechanism and double round mills mixer |
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2019
- 2019-11-29 CN CN201922100425.0U patent/CN211008509U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748308A (en) * | 2019-11-29 | 2020-02-04 | 徐州徐工基础工程机械有限公司 | Double round mills mixer hoist mechanism and double round mills mixer |
| CN110748308B (en) * | 2019-11-29 | 2024-07-23 | 徐州徐工基础工程机械有限公司 | Lifting mechanism of double-wheel milling mixer and double-wheel milling mixer |
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