CN210506135U

CN210506135U - Pile turning machine

Info

Publication number: CN210506135U
Application number: CN201921330021.4U
Authority: CN
Inventors: 谭碧峰; 田媛; 朱小明; 赵卫兵; 张勇; 康亚利; 陈兴
Original assignee: Zoomlion Beijing Environmental Protection Technology Co Ltd
Current assignee: Zoomlion Beijing Environmental Protection Technology Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-05-12
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a pile turning machine. The pile turning machine comprises: a vehicle body; a swing arm connected to the vehicle body; a boom disposed under the swing arm, and an upper end of the boom is connected to the swing arm; a drum disposed at a lower portion of the boom; wherein the boom arm is connected to the swivel arm in a relatively rotatable manner, the relatively rotatable axis being arranged vertically. The utility model discloses a pile machine turns over is provided with slewing bearing device, can realize the cylinder along the transform of vertical axle just, counter-rotation to reach cylinder two-way rotation, the purpose of two-way pile that turns over.

Description

Pile turning machine

Technical Field

The utility model belongs to the technical field of mechanical technique and specifically relates to a pile turning machine is related to.

Background

The turning machine is equipment commonly used in a strip stack type or bin type fermentation treatment process. The purpose of turning is to complete the stirring of the materials, the evaporation of water, the supplement of oxygen and the movement of the materials.

In the prior art, a roller of a pile turning machine can only rotate in one rotation direction, so that materials can only move in one fixed direction, the rotation direction of the roller cannot be changed according to the fermentation state and the process requirement of the materials, the moving direction of the materials is further changed, and the fermentation period is adjusted. Thus, the application of the pile turning machine is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heap machine that turns over realizes the cylinder to the two-way drive of material.

In order to achieve the above object, the utility model provides a pile turning machine, the pile turning machine includes:

a vehicle body;

a swing arm connected to the vehicle body;

a boom disposed under the swing arm, and an upper end of the boom is connected to the swing arm;

a drum disposed at a lower portion of the boom;

wherein the boom arm is connected to the swivel arm in a relatively rotatable manner, the relatively rotatable axis being arranged vertically.

Further, the pile turning machine further comprises a rotary driving unit, the rotary driving unit comprises a power device, a chain wheel and a chain, the power device drives the chain wheel to rotate, the chain is circumferentially and fixedly arranged on the periphery of the suspension arm, and the chain wheel is in transmission fit with the chain.

Further, the suspension arm is connected to the slewing arm through a slewing bearing device, the slewing bearing device comprises a first slewing part and a second slewing part, the first slewing part is connected with the lower portion of the slewing arm, the second slewing part is connected with the upper end of the suspension arm, a rolling body is arranged between the first slewing part and the second slewing part, and the second slewing part applies a vertical downward force to the first slewing part through the rolling body.

Furthermore, a through hole is formed in the middle of the slewing bearing device, and a transmission shaft or a high-pressure hose penetrates through the through hole, so that power is transmitted to the roller from the vehicle body to drive the roller to rotate.

Further, the pile turning machine comprises a motor and a reduction gearbox, the motor is mounted on the vehicle body, the reduction gearbox is arranged at the lower end of the suspension arm, the motor transmits driving force to the reduction gearbox through the transmission shaft, and the roller is in transmission connection with the output of the reduction gearbox.

Further, the pile turning machine comprises an electric motor, a hydraulic pump and a hydraulic motor, wherein the electric motor and the hydraulic pump are installed on the vehicle body, the hydraulic motor is arranged at the lower end of the suspension arm, the electric motor drives the hydraulic pump to rotate, the hydraulic pump conveys pressure liquid to the hydraulic motor through the high-pressure hose, and the roller is in transmission connection with the output of the hydraulic motor.

Further, the pile turning machine comprises a bolt cylinder, wherein a first positioning hole is formed in one of the first rotating member and the second rotating member, a second positioning hole is formed in the other one of the first rotating member and the second rotating member, the number of the second positioning holes is two, the angle difference between the two second positioning holes in the circumferential direction relative to the axis of relative rotation is 180 degrees, and the bolt cylinder drives a bolt to move so as to simultaneously penetrate through one of the two second positioning holes and the first positioning hole and lock the roller at the forward pile turning position or the reverse pile turning position.

Further, the pile turning machine comprises a lifting driving device, the rotary arm is hinged to the vehicle body, the lifting driving device is in transmission connection with the rotary arm to drive the rotary arm to swing around a hinge axis, and the rotary arm swings to lift or lower the roller.

The utility model discloses a pile machine turns over is provided with slewing bearing device, can realize the cylinder along the transform of vertical axle just, counter-rotation to reach cylinder two-way rotation, the purpose of two-way pile that turns over.

Drawings

Fig. 1 is a schematic view of a pile turning machine according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of the operation mode of the pile turning machine.

Fig. 3a and 3b show schematic diagrams of the operation mode of forward pile turning and reverse pile turning respectively.

Fig. 4a, 4b, 4c are schematic diagrams illustrating the discharging effect at different rotation speeds and distances.

FIG. 5a shows a drum speed control curve; figure 5b shows a schematic cross-sectional view of material deposition corresponding to the speed control curve shown in figure 5 a.

Fig. 6a shows a schematic view of a drum drive shaft drive configuration.

Fig. 6b shows a schematic diagram of a drum hydraulic motor drive configuration.

Fig. 7a is an enlarged schematic view of the drive configuration of fig. 6a at the location of the slewing bearing arrangement.

Fig. 7b is an enlarged schematic view of the drive configuration of fig. 6b at the location of the slewing bearing arrangement.

Figure 8 is a schematic view of the swing arm with the roller in the raised position.

Reference numerals:

1	vehicle body	21	Auxiliary support
				2	Rotary arm	22	Chain wheel
3	Wheel of vehicle	23	Chain
				4	Slewing bearing device	24	Protective cover
5	Suspension arm	41	First rotating member
				6	Roller	42	Second rotating member
7	Reduction gearbox	43	Rolling body
				9	Electric motor	100	Pile turning machine
10	Frequency converter	300	Storage unit
				11	Control module	301	Storehouse head
12	Stroke sensor	302	Track
				13	Transmission shaft	303	Material pile
14	Hydraulic pump	304	Fermentation storehouse
				15	Proportional valve	305	Storehouse tail
16	High-pressure hose	500	Feeding device
				17	Hydraulic motor	600	Discharging device
18	Bolt cylinder
				19	Speed reducer
20	Fastening screw

Detailed Description

In the drawings, the same or similar reference numerals are used to denote the same or similar elements or elements having the same or similar functions. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present invention, the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention.

The turner 100 is adapted to move relative to the storage unit to effect turning. Referring to fig. 2, the stocker unit includes: a bin head 301, a track 302, a fermentation bin 304 and a bin tail 305. The feed device 500 and the discharge device 600 may also be provided accordingly. In the fermentation chamber 304 there is a material pile 303. The turner 100 is used to drive a material pile 303. The fermentation bin 304 is typically a trough-shaped concrete building structure for containing the material to be fermented. The first bin is a material feeding end of the fermentation bin. The bin tail is a material discharging end of the fermentation bin. The track is a steel rail or a platform which is arranged on the fermentation bin and used for the pile turning machine to run. The feeding device is a device which is arranged at the head of the fermentation bin and is used for supplementing new materials into the fermentation bin. The discharging device is a device which is arranged at the tail of the bin and is used for conveying the materials turned and thrown out by the pile turning machine to other parts.

Referring to fig. 2, when the pile turning machine turns piles normally, the roller rotates reversely. The front end material is cut by the cutter, and by means of the kinetic energy provided by the roller, the material particles fly according to a parabolic line, and a new material pile is formed at a certain distance behind the roller. In the turning process, the materials are crushed, stirred, supplemented with oxygen, evaporated with water vapor and moved for a certain distance.

If the whole bin of the bin body is fully paved by a loader and the whole bin of the loader is used for discharging materials after fermentation is finished, the materials need to be repeatedly turned and piled in forward and reverse directions during the fermentation period. Because the cutter on the outer side of the roller has a forward rake, if the reverse pile turning is carried out by directly adopting the mode that the vehicle body retreats and the roller rotates forwards (rotates clockwise), the reverse pile turning can not be finished due to the claying effect of the cutter.

The utility model discloses guaranteeing that the actual rotation direction of cylinder keeps the unchangeable condition, through the mode of adjustment cylinder axis angle, realizing reversely turning over the heap.

Specifically, as shown in fig. 1, a pile turning machine 100 according to an embodiment of the present invention includes: a vehicle body 1; a swing arm 2; a boom 5 and a drum 6.

The vehicle body 1 is provided with wheels 3 so as to be movable relative to the stocker unit. The wheels 3 are part of the running gear and can be rubber wheels or steel wheels. In addition, the running gear can also adopt a crawler type. The traveling devices are arranged on the left and right of the vehicle body 1. For effecting movement of the car body relative to the storage unit. Tracks and rubber wheels, typically on a flat running platform; while the steel wheels run on a paved track 302, for example (steel rails). In one embodiment, the walking device can automatically adjust the walking speed according to the load state.

A swivel arm 2 is connected to the vehicle body 1. The swivel arm 2 can be used to lift the drum. In one embodiment, the articulated arm 2 is articulated to the body 1. The rotary arm 2 adopts a structure that a hydraulic oil cylinder drives a connecting rod mechanism to lift the roller. The number of articulated arms is usually one or two. When the number of the rotary arms is one, the rotary arms are arranged in the middle of the roller in a plan view. When the number of the rotary arms is two, the rotary arms are arranged at two sides of the end part of the roller.

A boom 5 is arranged below the swivel arm 2. In particular, the upper end of the boom 5 is connected to said swivel arm 2. Either a direct connection or an indirect connection.

A drum 6 is provided at the lower part of the boom 5. The drum 6 may be rotated to drive the material. The rollers are usually left and right and can be rotated synchronously or individually. The roller is arranged with a cutter seat, the cutter is mounted on the cutter seat by a bolt, and the cutter has a forward rake angle after being mounted, so that the cutting resistance can be reduced. The drum 6 is driven by mechanical transmission or hydraulic transmission.

To enable a bidirectional turning or bidirectional driving of the drum, a boom 5 is connected to the swivel arm 2 in a relatively rotatable manner, the axis of relative rotation being arranged vertically.

In order to drive the rotation of the boom 5, the machine 100 further comprises a slewing drive unit. The slewing drive device may be driven by any suitable drive means, such as hydraulic drive, gear drive, etc. In the illustrated embodiment, referring to fig. 7a, the swing drive unit comprises a power means, a sprocket 22 and a chain 23. The power device drives the chain wheel 22 to rotate, and the chain 23 is circumferentially and fixedly arranged on the outer periphery of the suspension arm 5, that is, the chain 23 circumferentially extends on the outer periphery of the suspension arm 5 and is fixed relative to the suspension arm 5. The sprocket 22 is in driving engagement with the chain 23. Compared with a gear transmission or hydraulic cylinder driving mode, the mode has the advantages of simple structure, small occupied space, convenience in processing and low cost. In order to protect the sprocket and the chain, a guard 24 is provided on the outside of the sprocket and the chain. The speed reducer 19 fixed to the swing arm 2 serves as a power unit, but the present invention may also directly employ a motor as a power unit. The auxiliary support 21 is used to support the output shaft of the reduction gear unit 19.

Referring to fig. 7a and 7b, the boom 5 is connected to the swivel arm 2 by means of a swivel support 4. The rotation of the slewing bearing device 4 is driven by a hydraulic motor or a speed reducer, and the locking is completed by a cylinder driving bolt. The slewing bearing 4 can be subjected to axial forces and overturning moments.

The slewing bearing arrangement 4 comprises a first slewing member 41 and a second slewing member 42. In the illustrated embodiment, the upper first rotating member 41 is located radially outward of the lower second rotating member 42. In one embodiment, not shown, the upper first rotating member 41 is located radially inward of the lower second rotating member 42.

The first rotating member 41 is connected to the lower portion of the swing arm 2 by a fastening screw 20, and the second rotating member 42 is connected to the upper end of the boom 5. Rolling elements 43 are provided between the first rotating member 41 and the second rotating member 42. The rolling elements 43 may be balls or rollers. The second rotary member 42 applies a vertically downward force to the first rotary member 41 via the rolling bodies 43.

The slewing bearing arrangement 4 essentially corresponds to a "thrust bearing". The "thrust" received by the "thrust bearing" corresponds to the weight of the boom 5 and the roller 6 connected to the boom 5.

As shown in fig. 7a and 7b, a through hole is formed in the middle of the slewing bearing device 4, and a transmission shaft 13 or a high-pressure hose 16 is arranged through the through hole, so that power is transmitted from the vehicle body 1 to the roller 6 to drive the roller 6 to rotate. The high-pressure hose refers to a hose capable of bearing large hydraulic pressure, such as a high-pressure hose, which can bear certain deformation without affecting transmission of the hydraulic pressure.

In the embodiment shown in fig. 7a, the pile-turning machine comprises an electric motor 9 and a reduction gearbox 7. The motor 9 is arranged on the vehicle body 1, the reduction gearbox 7 is arranged at the lower end of the suspension arm 5, the motor 9 transmits driving force to the reduction gearbox 7 through the transmission shaft 13, and the roller 6 is in transmission connection with the output of the reduction gearbox 7.

In the embodiment shown in fig. 7b, the pile-turning machine comprises an electric motor 9, a hydraulic pump 14 and a hydraulic motor 17, wherein the electric motor 9 and the hydraulic pump 14 are installed on the vehicle body 1, the hydraulic motor 17 is arranged at the lower end of the suspension arm 5, the electric motor 9 drives the hydraulic pump 14 to rotate, the hydraulic pump 14 delivers pressure liquid to the hydraulic motor 17 through the high-pressure hose 16, and the roller 6 is in transmission connection with the output of the hydraulic motor 17.

In order to achieve 180-degree precise rotation, the pile-turning machine includes a latch cylinder 18, a first positioning hole is provided on one of the first rotating member 41 and the second rotating member 42, and a second positioning hole is provided on the other of the first rotating member 41 and the second rotating member 42, wherein the number of the second positioning holes is two, and the angle difference between the two second positioning holes in the circumferential direction relative to the axis of relative rotation is 180 degrees, and the latch cylinder 18 drives a latch to move so as to simultaneously pass through one of the two second positioning holes and the first positioning hole, and lock the drum 6 in a forward pile-turning position or a reverse pile-turning position.

When reverse pile turning is needed, the pile turning machine is firstly withdrawn to the moving equipment, the roller is driven by the rotary arm to descend to the lowest position, the rotary support locking mechanism is opened, for example, the bolt of the bolt cylinder 18 in fig. 7a and 7b retracts, then the speed reducer 19 fixed on the rotary arm 2 drives the chain wheel 22 to rotate, the chain wheel 22 is meshed with the chain 23 fixed on the outer edge of the flange of the suspension arm 5, the rotary support device 4 is forced to drive the suspension arm) to rotate 180 degrees along the axial direction, and then the bolt of the bolt cylinder 18 extends out and is locked again. In the process, the roller is driven by the suspension arm to rotate 180 degrees at the same time.

Referring to fig. 8, the pile turner includes a lift driving device. The lifting driving device is used for lifting and lowering and rolling. Specifically, the revolving arm 2 is hinged to the vehicle body 1, and the lifting driving device is in transmission connection with the revolving arm 2 to drive the revolving arm 2 to swing around a hinge axis, so as to lift or lower the roller 6 through the swing of the revolving arm 2.

The lifting driving mechanism drives the roller to lift. When the roller is lowered to the low position, the pile turning machine advances, and the roller is driven by a hydraulic motor or a transmission shaft. The cutter on the outer wall of the roller cuts materials, and the materials are thrown to the back, so that the turning process is realized. When the roller is lifted to a high position, the roller avoids the material pile, and the pile turning machine retreats to realize the return process.

The utility model discloses a pile machine turns over with slewing bearing device can alternate and turn over the heap direction according to material fermentation needs. Especially for the fermentation process of feeding and discharging materials in the whole bin, the materials can be repeatedly turned and piled in two directions, so that the problems that the materials move in one direction and are discharged from the bin too early to cause insufficient fermentation are avoided. The turning direction changing mode does not need to turn the direction of a turning machine body, does not need to change the connection of electric or hydraulic pipelines, and has the advantages that no matter which direction the turning machine turns, the cutter has a reasonable front inclination angle, the working resistance is small, the energy is saved, and the working efficiency is high.

When the stack is turned in one direction, the highest rotating speed of the roller which meets the optimal turning distance can be automatically determined through the discharging flow sensing element and the stroke sensor so as to meet the requirement of an ideal fermentation period.

In the discharging section, the acceleration slope of the roller is automatically adjusted according to the running distance, so that the material turning distance is consistent with the running distance in the discharging stage, most of materials are turned and thrown onto the discharging device, and the turning efficiency is high.

In the feeding section, the speed reduction slope of the roller is automatically adjusted according to the running distance, so that the peak material pile is tiled at the rear of the roller after being turned, the material pile is gentle in height and uniform in aeration, and the load is balanced during turning.

The electric control system can be arranged in a control cabinet at the rear part of the pile turning machine. The power supply device adopts 1 or 2 cable reels, and has the functions of wire breakage protection and stall alarm. The pile turning machine can be provided with a stroke sensor and forward and backward in-place sensors.

In order to realize the turning of a plurality of fermentation bins by one turning machine, the turning machine is matched with a bin moving device which is called a bin transferring machine or a moving machine. The bin transferring machine is a floor type or a suspension type, is driven by a speed reducing motor and adopts a sliding contact line or a towing line for power supply. On which a centering sensor and forward and backward in-place sensors are arranged.

The whole set of equipment has a manual mode and an automatic mode and can be switched.

The utility model discloses a heap quick-witted cylinder rotational speed of turning over is according to the heap machine distance of traveling of turning over, by electrical system automatic control, all is suitable for various walking modes, various cylinder power transmission modes.

The highest rotating speed of the roller is automatically adjusted within a specified range by utilizing the discharge flow and the stroke sensor of the pile turning machine, so that the reasonable average turning distance of the materials is planned to meet the requirement of the fermentation period of the materials without pursuing too long turning distance.

The rotary drum rotating speed control associated with the running distance is adopted, the rotary drum rotating speed is gradually increased along with the increase of the running distance of the pile turning machine at the discharge section at the tail of the bin until the maximum rotating speed is automatically adjusted, so that most materials at the discharge section can be accurately turned and thrown onto the discharge device instead of being over-positioned or insufficient.

The rotating speed of the roller is controlled by the rotating speed of the roller related to the running distance, the rotating speed of the roller is gradually reduced along with the increase of the running distance of the pile turning machine at the head feeding section of the storehouse until the set lowest rotating speed, sharp pile materials formed by feeding can be paved in a slightly wide range behind the roller without new peaks, and the uniform aeration and load balance of pile turning operation are facilitated.

The reverse turning stack can also be used for a fermentation bin for feeding and discharging materials in a non-whole bin. If the fermentation of the materials in a certain period or a certain fermentation bin is poor due to various reasons, reverse pile turning can be temporarily adopted, the time for leaving the materials in the fermentation bin is prolonged, and the purpose of full fermentation of the materials is met.

When the pile is turned forwards and backwards, the advancing direction of the vehicle body, the rotating direction of the roller and the moving direction of the materials are shown in figures 3a and 3 b.

The utility model discloses can solve the heap machine best of turning over and throw the problem that the distance is definite. The turning distance is the distance that the material pile is moved when the drum rotates at a certain speed at the discharge end. The turning distance L1, the total length L of the bin and the fermentation period T satisfy the following relations:

T＝L/L1

the turning distance is directly related to the rotating speed of the roller, if the rotating speed of the roller is too high, the turning distance is too far, the actual time for leaving the whole bin of materials is shorter than the ideal fermentation period T, the materials are not fermented sufficiently, and the material processing effect is poor. If the rotating speed of the roller is too low, the turning distance is too short, the actual storage time of the whole storage is longer than the ideal fermentation period T, the material pile is too high, the aeration effect is poor, and the fermentation treatment efficiency is low.

The feeding device 500 and the discharging device 600 may be any suitable devices as long as they can perform the feeding or discharging function. For example, the feeding device 500 and the discharging device 600 may each employ a belt conveyor.

The utility model discloses a discharging device, for example on band conveyer, be provided with flow sensor. When the distance between the roller and the bin tail is close to L1(L1 is the optimal turning distance) during turning, the discharging flow sensor can sense the material flow, and if the material flow is not sensed, the control system controls the roller to increase the rotating speed according to the set amplitude; when the distance between the roller and the bin tail is slightly larger than L1, for example, the distance is larger than 0.1 m, the discharging flow sensor can sense that the material flow is rapidly reduced, if the sensed material flow is still large, the control system controls the roller to reduce the rotating speed according to the set range, so that the material flow is rapidly reduced, and then the roller continuously works at the stable rotating speed omega, and the optimal turning distance is set.

The utility model discloses can also solve the storehouse tail ejection of compact throw distance and travel matching problem. When the turning machine drives into the fermentation bin, the roller starts to cut in and turn over the material, and the rotating speed of the roller is not required to be fast because the distance between the roller and the discharging device is short. Along with the increase of the driving-in stroke of the pile turner, the rotating speed of the roller is gradually increased, the average position of the material falling point is basically coincided with the center of the discharging device within the optimal turning distance, the discharging splashing is less, and the efficiency is high.

The rotating speed of the roller when the roller starts to cut into the material is the initial rotating speed omega 1, the rotating speed is determined comprehensively according to the material density, the material pile height, the roller diameter and the material and cutter adhesion coefficient, and the rotating speed can be determined by repeated correction according to the actual situation when the material pile is turned.

The maximum working speed of the roller, namely the continuous working speed omega, is set according to requirements.

The effect of the control of the rotational speed of the tapping cylinder is schematically shown in fig. 4a and 4 b.

The utility model discloses can also solve the roughness problem that storehouse first material paves. After the feeding device at the head of the bin feeds materials, a peak pile is often formed, the distribution width of the pile is generally larger than the optimal turning distance of L1, in order to prevent the phenomenon that the shape of the pile is followed after the materials are turned, and eliminate new peaks, the rotating speed of the roller which is cut into the feeding pile is intentionally and gradually reduced according to a certain slope, so that after the materials are turned, the distribution range is wider, and the upper profile of the pile is smoother.

Because the newly-fed material moisture content is high, density is great, turns over throwing distance and is far away than the material of discharge end, this has created the condition for increaseing material distribution width. The speed omega 2 of the end point roller is comprehensively determined according to the material density, the height of the material pile, the diameter of the roller and the adhesion coefficient of the material and the cutter, and can also be repeatedly corrected and determined according to the actual situation during pile turning.

The drum speed control curve and the material stack cross section are shown in figures 5a and 5 b.

Because the material discharging and feeding are related to the stroke of the pile turning machine, a stroke sensor 12 is used as a main command element, the stroke sensor 12 is directly connected to the traveling wheels 3, according to the speed control curve shown in fig. 5a, the control module 11 instructs the frequency converter 10 to adjust the power supply frequency, and the rotating speed of the roller is controlled through the transmission system to realize the preset pile turning requirement.

For hydraulic transmissions. The electric motor 9 drives the hydraulic pump 14 to generate pressure energy, the hydraulic pressure energy drives the hydraulic motor 17 through the high-pressure rubber pipe 16, and power is directly transmitted to the right roller 6 and the left roller 8. Likewise, a travel sensor 12 is used as the master element, the sensor 12 being directly connected to the wheel 3, according to the speed control curve of fig. 5 a. The control module 11 outputs control current to a proportional valve 15 on the hydraulic pump, the proportional valve 15 determines the oil flow of the hydraulic pump according to the control current, and the hydraulic motor adjusts the speed according to the oil flow, drives the roller to rotate and meets the preset pile turning requirement.

Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Those of ordinary skill in the art will understand that: modifications can be made to the technical solutions described in the foregoing embodiments, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A pile-turning machine (100), characterized in that it comprises:

a vehicle body (1);

a swivel arm (2) connected to the vehicle body (1);

a boom (5) disposed below the swing arm (2), and an upper end of the boom (5) is connected to the swing arm (2);

a drum (6) disposed at a lower portion of the boom (5);

wherein the boom (5) is connected to the swivel arm (2) in a relatively rotatable manner, the axis of relative rotation being arranged vertically.

2. The pile-turning machine according to claim 1, characterized in that the pile-turning machine (100) further comprises a rotary driving unit, the rotary driving unit comprises a power device, a chain wheel (22) and a chain (23), the power device drives the chain wheel (22) to rotate, the chain (23) is circumferentially and fixedly arranged on the periphery of the suspension arm (5), and the chain wheel (22) and the chain (23) are in transmission fit.

3. The machine according to claim 1, characterized in that said boom (5) is connected to said slewing arm (2) by means of a slewing bearing device (4), said slewing bearing device (4) comprising a first slewing member (41) and a second slewing member (42), said first slewing member (41) being connected to the lower part of said slewing arm (2), said second slewing member (42) being connected to the upper end of said boom (5), rolling bodies (43) being arranged between said first slewing member (41) and said second slewing member (42), said second slewing member (42) exerting a vertical downward force on said first slewing member (41) through said rolling bodies (43).

4. A pile-turning machine according to claim 3, characterized in that the slewing bearing device (4) is provided with a through hole in the middle through which a transmission shaft (13) or a high-pressure hose (16) is arranged to transmit power from the vehicle body (1) to the drum (6) to drive the drum (6) to rotate.

5. The pile turning machine according to claim 4, characterized by comprising a motor (9) and a reduction gearbox (7), wherein the motor (9) is mounted on the vehicle body (1), the reduction gearbox (7) is arranged at the lower end of the suspension arm (5), the motor (9) transmits driving force to the reduction gearbox (7) through the transmission shaft (13), and the roller (6) is in transmission connection with the output of the reduction gearbox (7).

6. The pile-turning machine according to claim 4, characterized in that the machine comprises an electric motor (9), a hydraulic pump (14) and a hydraulic motor (17), the electric motor (9) and the hydraulic pump (14) are mounted on the vehicle body (1), the hydraulic motor (17) is arranged at the lower end of the boom (5), the electric motor (9) drives the hydraulic pump (14) to rotate, the hydraulic pump (14) delivers pressure liquid to the hydraulic motor (17) through the high-pressure hose (16), and the drum (6) is in transmission connection with the output of the hydraulic motor (17).

7. The pile-turning machine according to any one of claims 3-6, characterized in that the machine comprises a latch cylinder (18), a first positioning hole is provided on one of the first rotating member (41) and the second rotating member (42), a second positioning hole is provided on the other of the first rotating member (41) and the second rotating member (42), wherein the number of the second positioning holes is two, and the angle difference of the two second positioning holes in the circumferential direction relative to the axis of relative rotation is 180 degrees, the latch cylinder (18) drives a latch to move so as to simultaneously pass through one of the two second positioning holes and the first positioning hole, and lock the drum (6) in a forward pile-turning position or a reverse pile-turning position.

8. The machine according to any one of claims 1 to 6, characterized in that it comprises a lifting drive, the swivelling arm (2) being articulated to the vehicle body (1), the lifting drive being in driving connection with the swivelling arm (2) to drive the swivelling arm (2) in oscillation about an articulation axis, the drum (6) being raised or lowered by the oscillation of the swivelling arm (2).