CN214779342U

CN214779342U - Engineering machinery

Info

Publication number: CN214779342U
Application number: CN202121070865.7U
Authority: CN
Inventors: 庄乾霞; 张起伟; 赵华志; 黄振国; 黄诗伟; 徐志刚
Original assignee: Huadian Heavy Industries Co Ltd
Current assignee: Huadian Heavy Industries Co Ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-11-19
Anticipated expiration: 2031-05-18

Abstract

The utility model provides an engineering machine tool belongs to engineering equipment technical field, include: a main body including a hanger bar extending in a lateral direction; the cab is hinged to the hanging rod and hung below the hanging rod; a drive mechanism disposed between the cab and the main body, the drive mechanism adapted to apply a torque to the cab about the hanging bar. The utility model provides a pair of engineering machine, when the main part swings, the driver's cabin can rotate around hanging the pole, so that the driver's cabin keeps the level, and utilize actuating mechanism can guarantee the steady rotation of driver's cabin, self gravity that relies on the driver's cabin in-process in driver's cabin leveling rotates, do not rely on actuating mechanism's drive, actuating mechanism's setting is more steady when making the driver's cabin rotate, therefore, even when actuating mechanism breaks down, the driver's cabin also can rotate to the horizontality, guarantee navigating mate's normal driving and life safety.

Description

Engineering machinery

Technical Field

The utility model relates to an engineering equipment technical field, concretely relates to engineering machine tool.

Background

Construction machines are an important component of the equipment industry. In general, mechanical equipment necessary for comprehensive mechanized construction works required for earth and stone construction works, road surface construction and maintenance, mobile lifting, loading and unloading operations, and various construction works is called as construction machinery. A bucket-wheel stacker-reclaimer for large-scale bulk cargo yard is composed of a rubber belt conveying arm able to swing up and down, its front bucket wheel, machine frame and running mechanism.

The cab is an important component of the bucket-wheel stacker reclaimer, the cab is mostly arranged on a cantilever frame or a tower upright post of a steel structure on the upper part of the equipment, the cab can incline along with the pitching of the equipment due to the pitching motion of the steel structure on the upper part of the equipment, and in order to ensure the safety and normal operation of drivers, the cab is required to be kept horizontal by using a cab leveling device. The existing cab leveling device is generally characterized in that a plurality of supporting hinge points are arranged at the bottom of a cab, a telescopic oil cylinder is connected with a movable hinge point, and the cab is driven to rotate by utilizing the stretching and the rotation of the oil cylinder, so that the cab is always kept horizontal.

However, when an oil cylinder of the existing cab leveling device fails, for example, the oil cylinder cannot stretch, the cab can pitch along with a steel structure on equipment, and when the pitch angle is too large, a driver cannot drive normally; for another example, when the oil cylinder is hinged to a hinge point on the equipment or at the bottom of the cab, the cab can rotate around the support hinge point, so that the cab is overturned, and the safety of drivers is seriously threatened.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that there is threat to driving and safety of navigating mate in engineering machine's cab levelling device among the prior art.

In order to solve the technical problem, the utility model provides an engineering machine, a serial communication port, include:

a main body including a hanger bar extending in a lateral direction;

the cab is hinged to the hanging rod and hung below the hanging rod;

a drive mechanism disposed between the cab and the main body, the drive mechanism adapted to apply a torque to the cab about the hanging bar.

Hang the peg with be provided with first articulated subassembly between the top of cab, actuating mechanism includes the telescoping cylinder, the both ends of telescoping cylinder respectively through second articulated subassembly with the cab with hang the peg and articulate mutually, the main part swing, the cab passes through first articulated subassembly rotates, just the telescoping cylinder stretches out or the withdrawal, and passes through second articulated subassembly rotates, so that the cab keeps the level.

The first hinge assembly comprises a first support leg arranged on the hanging rod, a second support leg arranged at the top of the cab and a rotating shaft for rotatably connecting the first support leg and the second support leg;

the second hinge assembly further comprises a third support leg arranged on the hanging rod, a fourth support leg arranged at the top of the cab, and a pair of rotating shafts which respectively rotatably connect the third support leg and the fourth support leg with two ends of the telescopic cylinder.

A pair of second supporting legs is arranged at intervals oppositely, and one end of the first supporting leg, which is far away from the hanging rod, is arranged between the pair of second supporting legs;

the third supporting leg and the fourth supporting leg are oppositely arranged in a pair at intervals, and two ends of the telescopic cylinder are respectively arranged between the third supporting leg and the fourth supporting leg.

The first end fixedly connected with of pivot blocks the portion, the second end detachable of pivot is connected with the second and blocks the portion, works as the second blocks the portion set up in the pivot, first block with the second block respectively with a pair of the outer wall of second stabilizer blade, or a pair of the outer wall of third stabilizer blade, or a pair of the outer wall of fourth stabilizer blade pastes the setting mutually.

The second blocking part comprises a baffle movably clamped with the outer wall of the rotating shaft, when the baffle is clamped on the rotating shaft, the inner wall of the baffle is attached to the outer wall of the second supporting leg, or the outer wall of the third supporting leg, or the outer wall of the fourth supporting leg, and the second blocking part further comprises a fastener which penetrates through the baffle and is fastened on the second supporting leg, or the third supporting leg, or the fourth supporting leg.

The first hinge assemblies are at least oppositely arranged in two groups at intervals, and the driving mechanism is arranged between the two adjacent groups of the first hinge assemblies.

And the inclination angle sensor is electrically connected with the driving mechanism.

The tilt sensor is arranged in the cab and/or on the main body.

The engineering machinery is a bucket-wheel stacker-reclaimer.

The utility model discloses technical scheme has following advantage:

1. the utility model provides an engineering machine, which comprises a main body and a cab, wherein the main body is provided with a hanging rod extending along the transverse direction, and the cab is hung below the hanging rod and is hinged with the hanging rod, so that the cab can rotate around the hanging rod when the main body swings, and the cab can be kept horizontal; and a driving mechanism is arranged between the cab and the main body and can apply torque around the hanging rod to the cab, so that the stable rotation of the cab can be ensured by using the driving mechanism. The driver cab leveling device is driven by the gravity of the driver cab to rotate in the driver cab leveling process and is not driven by the driving mechanism, and the driving mechanism is arranged to enable the driver cab to rotate more stably, so that the driver cab can also rotate to a horizontal state even when the driving mechanism breaks down, and normal driving and life safety of drivers are guaranteed.

2. The engineering machinery provided by the utility model has the advantages that the first hinge assembly is arranged to enable the cab to be rotatably hung at the lower end of the hanging rod, so that the cab can be rotatably leveled through the first hinge assembly; the driving mechanism is arranged to be the telescopic cylinder, and two ends of the telescopic cylinder are hinged, so that force can be applied to the cab under the telescopic action of the telescopic cylinder, and the cab can be rotationally adjusted along with the angle change between the cab and the hanging rod.

3. The engineering machinery provided by the utility model has the advantages that the first support leg is arranged on the hanging rod, the second support leg is arranged at the top of the cab, and the first support leg and the second support leg are rotatably connected by the rotating shaft, so that the cab can rotate around the hanging rod; the third support leg is arranged on the hanging rod, the fourth support leg is arranged at the top of the cab, and the third support leg and the fourth support leg are respectively and rotatably connected with the two ends of the telescopic cylinder through the pair of rotating shafts, so that the two ends of the telescopic cylinder can respectively rotate around the cab and the hanging rod. The hinged structures between the cab and the hanging rod and between the cab, the hanging rod and the telescopic cylinder are simple, and the adjustment is convenient.

4. The utility model provides a pair of engineering machine tool all sets up second stabilizer blade, third stabilizer blade and fourth stabilizer blade into a pair of for cab and hang between the pole and cab, hang and be connected between pole and the telescoping cylinder more stable, more steady when the cab rotates.

5. The engineering machine provided by the utility model has the advantages that the first blocking part and the second blocking part are respectively arranged at the two ends of the rotating shaft, so that the connection between the first support leg and the second support leg, the connection between the third support leg and the telescopic cylinder, the connection between the fourth support leg and the telescopic cylinder are firmer, the mutual separation of the hinged parts is prevented, and the safety of the cab hanging is ensured; and, fix the one end of locating the pivot with first barrier part, locate the other end of pivot with second barrier part detachable for the installation and the dismantlement of pivot are all more convenient, have been convenient for the maintenance and the change of each part.

6. The utility model provides a pair of engineering machine tool installs back to each stabilizer blade when the pivot in the pivot, with the baffle joint in the pivot to fix the baffle through the fastener, so that each stabilizer blade is fixed in between first stop part and the second stop part, simple structure, simple to operate.

7. The utility model provides a pair of engineering machine tool sets up first articulated subassembly relative spaced at least two sets ofly to, set up actuating mechanism between adjacent two sets of first articulated subassemblies, make the driver's cabin and hang being connected between the pole more stable, rotate more steadily, and the driver's cabin is more balanced with the actuating mechanism's that hangs the pole and receive drive power.

8. The utility model provides a pair of engineering machine tool is through setting up inclination sensor to be connected inclination sensor and actuating mechanism electricity, make actuating mechanism can be according to the change automatic operation of angle, the leveling of cab is automatic and accurate more.

9. The engineering machinery provided by the utility model has the advantages that the inclination angle sensor is arranged in the cab, so that a driver in the cab can manually adjust the driving mechanism according to the inclination angle obtained by the inclination angle sensor, and the adjusting mode is simpler; the inclination angle sensor is arranged on the main body, the inclination angle of the main body can be accurately obtained by the inclination angle sensor, and the adjustment of the driving mechanism is more accurate.

10. The utility model provides a pair of engineering machine, this engineering machine are bucket-wheel stacker reclaimer, because the frequent needs pitching motion of bucket-wheel stacker reclaimer, the cab also will be along with the every single move production slope of equipment, through with cab hoist and mount setting to utilize the weight of self to carry out the regulation of angle, and add the stationarity when actuating mechanism guarantees the cab rotation, with normal driving and the life safety of guaranteeing navigating mate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a construction machine according to an embodiment of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 1;

fig. 4 is a cross-sectional view of B-B in fig. 1.

Description of reference numerals:

1. a driver's cab; 2. a main body; 3. a first hinge assembly; 4. a second hinge assembly; 5. a telescopic cylinder; 6. a hanging rod; 7. a first leg; 8. a second leg; 9. a third leg; 10. a fourth leg; 11. a rotating shaft; 12. a first blocking portion; 13. a baffle plate; 14. a fastener; 15. a support; 16. a knuckle bearing; 17. a retainer ring; 18. a shaft sleeve; 19. and (7) a gasket.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like 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 specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

In one embodiment of the working machine shown in fig. 1 to 4, the working machine is a bucket wheel stacker-reclaimer, and includes a main body 2 and a cab 1. As shown in fig. 2, a hanging rod 6 is provided on the main body 2 extending from the upper side of the main body 2 in the transverse direction, and the cab 1 is hung below the hanging rod 6 and is hinged to the hanging rod 6. As shown in fig. 1 and 2, a driving mechanism is further disposed between the hanging rod 6 and the cab 1, and the driving mechanism can apply a torque around the hanging rod 6 to the cab 1.

When the main body 2 swings, the cab 1 can rotate around the hanging rod 6, so that the cab 1 is kept horizontal; and, the smooth rotation of the cab 1 can be ensured by the driving mechanism. The driver cab 1 is rotated by means of self gravity of the driver cab 1 in the leveling process of the driver cab 1 and is not driven by a driving mechanism, and the driving mechanism is arranged to enable the driver cab 1 to rotate more stably, so that the driver cab 1 can rotate to a horizontal state even when the driving mechanism breaks down, and normal driving and life safety of drivers are guaranteed.

In the present embodiment, as shown in fig. 1 and 2, a support 15 is fixedly disposed on the body of the hanging rod 6 extending out of the main body 2, and the support 15 is connected with the main body 2. The connection between the hanging rod 6 and the main body 2 is enhanced by arranging the support 15, the strength of the hanging rod 6 is enhanced, and the safety of the cab 1 hung on the hanging rod 6 is ensured.

As shown in fig. 1 and 2, the hanger bar 6 and the cab 1 are hinged to each other by the first hinge assembly 3. As shown in fig. 2 and 3, the first hinge assembly 3 includes a first leg 7 formed by extending a support 15 downward, a second leg 8 provided at the top of the cab 1, and a rotating shaft 11 rotatably connecting the first leg 7 and the second leg 8 to each other. Specifically, through holes are transversely formed in the first supporting leg 7 and the second supporting leg 8, the through holes in the first supporting leg 7 and the second supporting leg 8 are correspondingly formed, and the rotating shaft 11 is inserted into the through holes. The cab 1 is rotatably hung at the lower end of the hanging rod 6 by arranging the first hinge assembly 3, so that the cab 1 can be rotatably leveled through the first hinge assembly 3.

As shown in fig. 1 and 4, the driving mechanism includes a telescopic cylinder 5 and a second hinge assembly 4 for mutually hinge-connecting both ends of the telescopic cylinder 5 with the suspension rod 6 and the cab 1. The second hinge assembly 4 comprises a third support leg 9 arranged on the hanging rod 6, a fourth support leg 10 arranged at the top of the cab 1, and a pair of rotating shafts 11 which respectively rotatably connect the third support leg 9 and the fourth support leg 10 with two ends of the telescopic cylinder 5. Specifically, through holes are transversely formed in the two ends of the third support leg 9, the fourth support leg 10 and the telescopic cylinder 5, the through holes in one end of the third support leg 9 and the telescopic cylinder 5 and the through holes in the other end of the fourth support leg 10 and the telescopic cylinder 5 are correspondingly arranged, and the pair of rotating shafts 11 are respectively inserted into the through holes. Through setting up telescoping cylinder 5, and the both ends of telescoping cylinder 5 all articulate the setting, consequently, can be to cab 1 application of force under the flexible effect of telescoping cylinder 5 to rotate the regulation along with the angle change between cab 1 and the pole 6 of hanging.

In the embodiment, the second support legs 8 are oppositely provided with a pair at intervals, and the first support leg 7 is inserted between the pair of second support legs 8; the third supporting legs 9 and the fourth supporting legs 10 are respectively provided with a pair at intervals, and two ends of the telescopic cylinder 5 are respectively inserted between the pair of third supporting legs 9 and the pair of fourth supporting legs 10. All set up second stabilizer blade 8, third stabilizer blade 9 and fourth stabilizer blade 10 to a pair of for cab 1 and hang between the pole 6 and cab 1, hang being connected between pole 6 and the telescoping cylinder 5 more stable, more steady when cab 1 rotates.

As shown in fig. 3 and 4, a first blocking portion 12 is disposed at a first end of the rotating shaft 11, a second blocking portion is detachably connected to a second end of the rotating shaft 11, and when the second blocking portion is connected to the rotating shaft 11, the first blocking portion 12 and the second blocking portion are respectively attached to outer walls of the pair of second supporting legs 8, the pair of third supporting legs 9, or the pair of fourth supporting legs 10.

The first blocking part 12 and the second blocking part are respectively arranged at the two ends of the rotating shaft 11, so that the first support leg 7, the second support leg 8, the third support leg 9, the telescopic cylinder 5, the fourth support leg 10 and the telescopic cylinder 5 are connected more firmly, the hinged parts are prevented from being separated from each other, and the hanging safety of the cab 1 is ensured; and, fix the one end of locating pivot 11 with first barrier 12, locate the other end of pivot 11 with second barrier detachable for the installation and the dismantlement of pivot 11 are all more convenient, have been convenient for the maintenance and the change of each part.

In the present embodiment, as shown in fig. 3 and 4, the first stopper 12 is a disk-shaped protrusion fixed to the first end of the rotating shaft 11, and the diameter of the disk-shaped protrusion is larger than that of the through hole through which the rotating shaft 11 penetrates.

In this embodiment, as shown in fig. 3 and 4, the second blocking portion includes a blocking plate 13 movably engaged with the outer wall of the rotating shaft 11 and a fastening member 14 for fixing the blocking plate 13 to the second leg 8, the third leg 9 or the fourth leg 10. When the baffle 13 is inserted on the outer wall of the rotating shaft 11, the inner wall of the baffle 13 is attached to the outer wall of the second leg 8, the outer wall of the third leg 9 or the outer wall of the fourth leg 10, and a bolt serving as a fastener 14 penetrates through the baffle 13 and is in threaded connection with the second leg 8, the third leg 9 or the fourth leg 10. A gasket 19 is arranged between the head of the bolt and the baffle plate 13, so that the bolt can fasten the baffle plate 13 more firmly.

In the present embodiment, as shown in fig. 3 and 4, the knuckle bearing 16 is disposed in each of the through hole formed in the first leg 7 and the through holes formed in both ends of the telescopic cylinder 5, and the rotating shaft 11 is disposed inside the inner ring of the knuckle bearing 16. The rotation between the two ends of the first support leg 7 and the telescopic cylinder 5 and the rotating shaft 11 is facilitated by arranging the joint bearing 16, and the connection strength between the two ends of the first support leg 7 and the telescopic cylinder 5 and the rotating shaft 11 is ensured.

In the present embodiment, as shown in fig. 3 and 4, a pair of retaining rings 17 are provided at intervals on the inner wall of the through hole provided in the first leg 7 and on the inner wall of the through hole provided at both ends of the telescopic cylinder 5, and the pair of retaining rings 17 are provided at both ends of the outer ring of the joint bearing 16. The rotating shaft 11 is provided with a pair of shaft sleeves 18 at intervals, the inner walls of the pair of shaft sleeves 18 are respectively connected with the outer wall of the inner ring of the joint bearing 16, and the outer walls of the pair of shaft sleeves 18 are respectively connected with the inner walls of the pair of second supporting legs 8, the inner walls of the pair of third supporting legs 9 or the inner walls of the pair of fourth supporting legs 10. The knuckle bearing 16 can be axially fixed by arranging the pair of retaining rings 17 and the pair of shaft sleeves 18, so that the axial movement of the knuckle bearing 16 is avoided, and the stability of the cab 1 in the rotating process is further ensured.

In the present embodiment, as shown in fig. 2, the first hinge assemblies 3 and the supports 15 are arranged in two sets at intervals in the transverse direction, and are respectively arranged at the left and right ends of the top of the cab 1, and as shown in fig. 1, the second support legs 8 are arranged at the middle position of the top surface of the cab 1 in the front-back direction of the cab 1. As shown in fig. 2, the driving mechanism is disposed in the middle of the two first hinge assemblies 3. The connection between cab 1 and the hanging rod 6 is more stable, the rotation is more stable, and the driving force of the driving mechanism of cab 1 and hanging rod 6 is more balanced.

In this embodiment, all be equipped with inclination sensor on the main part 2 and in the cab 1, and inclination sensor and telescoping cylinder 5 electricity are connected for telescoping cylinder 5 can be according to the change automatic operation of angle, and the leveling of cab 1 is automatic and accurate more. The inclination angle of the main body 2 can be accurately obtained by the inclination angle sensor on the main body 2, and the adjustment of the telescopic cylinder 5 is more accurate. However, the tilt angle sensor provided in the main body 2 needs to be calculated by software to reversely estimate the stroke change required to be performed by the tilt angle telescopic cylinder 5, and in practical applications, the stroke measurement of the telescopic cylinder 5 is difficult. Therefore, by arranging the tilt angle sensor in the cab 1, the driver can manually adjust the extension or the contraction of the telescopic cylinder 5 according to the tilt angle measured by the tilt angle sensor, so that the cab 1 is in the horizontal position.

In the present embodiment, the support 15 and the main body 2, and the support 15 and the hanging rod 6 are fixed by welding.

When the main part 2 of bucket-wheel stacker reclaimer of this embodiment takes place the pitch swing, cab 1 rotates with hanging pole 6 relatively through first hinge assembly 3 to, telescopic cylinder 5 extends or shortens and carries out steady rotation in order to drive cab 1, so that cab 1 keeps the level.

The bucket-wheel stacker reclaimer that this embodiment provided is when doing the luffing motion, and cab 1 also will produce the slope along with the every single move of equipment, through setting up cab 1 hoist and mount to the weight that utilizes self carries out the regulation of angle, and add the stationarity when actuating mechanism guarantees cab 1 rotates, with normal driving and the life safety of guaranteeing navigating mate.

As an alternative embodiment, the drive mechanism may be connected between the side of the cab 1 and the main body 2.

As an alternative embodiment, the second stopping portion may be a nut, and the outer wall of the second end of the rotating shaft 11 is provided with a thread that is matched with the nut, so that the nut is screwed on the rotating shaft 11.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A work machine, comprising:

a main body (2), the main body (2) comprising a hanging bar (6) extending in a transverse direction;

the cab (1) is hinged to the hanging rod (6) and hung below the hanging rod (6);

a drive mechanism arranged between the cab (1) and the main body (2), the drive mechanism being adapted to apply a torque around the suspension bar (6) to the cab (1).

2. The engineering machine according to claim 1, wherein a first hinge assembly (3) is arranged between the hanging rod (6) and the top of the cab (1), the driving mechanism comprises a telescopic cylinder (5), two ends of the telescopic cylinder (5) are respectively hinged to the cab (1) and the hanging rod (6) through a second hinge assembly (4), the main body (2) swings, the cab (1) rotates through the first hinge assembly (3), and the telescopic cylinder (5) extends or retracts and rotates through the second hinge assembly (4) to enable the cab (1) to be kept horizontal.

3. The working machine according to claim 2, characterized in that the first articulation assembly (3) comprises a first leg (7) provided on the suspension bar (6), a second leg (8) provided at the top of the cab (1), and a rotation shaft (11) rotatably connecting the first leg (7) and the second leg (8);

the second hinge assembly (4) further comprises a third support leg (9) arranged on the hanging rod (6), a fourth support leg (10) arranged at the top of the cab (1), and a pair of rotating shafts (11) which are used for respectively rotatably connecting the third support leg (9) and the fourth support leg (10) with two ends of the telescopic cylinder (5).

4. The working machine as claimed in claim 3, characterized in that a pair of said second legs (8) is provided at an opposite interval, and the end of said first leg (7) remote from said hanging rod (6) is provided between a pair of said second legs (8);

the third supporting legs (9) and the fourth supporting legs (10) are arranged in a pair at intervals, and two ends of the telescopic cylinder (5) are respectively arranged between the pair of third supporting legs (9) and the pair of fourth supporting legs (10).

5. The engineering machine according to claim 4, wherein a first blocking portion (12) is fixedly connected to a first end of the rotating shaft (11), a second blocking portion is detachably connected to a second end of the rotating shaft (11), and when the second blocking portion is arranged on the rotating shaft (11), the first blocking portion (12) and the second blocking portion are respectively attached to outer walls of a pair of the second supporting legs (8), outer walls of a pair of the third supporting legs (9), or outer walls of a pair of the fourth supporting legs (10).

6. The construction machine according to claim 5, wherein the second blocking portion comprises a blocking plate (13) movably clamped with an outer wall of the rotating shaft (11), when the blocking plate (13) is clamped on the rotating shaft (11), an inner wall of the blocking plate (13) is attached to an outer wall of the second leg (8), an outer wall of the third leg (9) or an outer wall of the fourth leg (10), and the second blocking portion further comprises a fastening member (14), and the fastening member (14) penetrates through the blocking plate (13) and is fastened to the second leg (8), the third leg (9) or the fourth leg (10).

7. A working machine according to any of claims 2-6, characterized in that said first joint components (3) are arranged in at least two groups spaced apart from each other, and said drive means is arranged between two adjacent groups of said first joint components (3).

8. A working machine according to any of claims 1-6, characterized in that a tilt sensor is provided, which tilt sensor is electrically connected to the driving mechanism.

9. A working machine according to claim 8, characterized in that the tilt sensor is provided in the cab (1) and/or on the body (2).

10. A working machine according to any of claims 1-6, characterized in that the working machine is a bucket-wheel stacker reclaimer.