CN117800267A - Turntable seat device and overhead working truck - Google Patents

Abstract

The invention discloses a turntable seat device and an overhead working truck, wherein the turntable seat device comprises a turntable seat, a follow-up seat and a pitching driving piece, the pitching angle of the follow-up seat is adjustably arranged on the turntable seat, and the pitching driving piece is arranged on the turntable seat and is in driving connection with the follow-up seat so as to adjust the pitching angle of the follow-up seat; when an operator controls the arm support to swing upwards or downwards, the pitching driving piece drives the follow-up seat to swing along with the arm support, in the process, the operator can lean against the backrest of the follow-up seat all the time, the top end of the arm support can be directly observed without head lifting, the working strength of the operator is reduced, fatigue and discomfort of the operator due to long-time operation are avoided, and the operation efficiency and the operation accuracy of the operator are improved.

Description

Turntable seat device and overhead working truck

Technical Field

The invention belongs to the technical field of overhead working vehicles, and particularly relates to a turntable seat device and an overhead working vehicle.

Background

The overhead working truck is a special vehicle for transporting workers and using equipment to the site and carrying out overhead working, and when the overhead working is carried out, the operators operate the arm support on the turntable to act so that the top end of the arm support reaches a designated position, and in order to ensure the accuracy of the arm support movement, the operators need to pay attention to the condition of the top end of the arm support at any time.

In the prior art, a turntable seat on an overhead working truck is a fixed seat, and when the top end of an arm support moves to a higher position, an operator needs to observe the top end of the arm support in a head-up and head-up mode, so that the operator can often feel tired and uncomfortable, and further the operation efficiency and the operation accuracy are affected.

Disclosure of Invention

Aiming at the defects or shortcomings, the invention provides a turntable seat device and an overhead working truck, and aims to solve the technical problems that in the prior art, due to the fixed position of a turntable seat, an operator can lift a head for a long time to observe a boom, fatigue and discomfort are easy to generate, and further the operation efficiency and the operation accuracy are influenced.

In order to achieve the above object, the present invention provides a turntable seat device and an overhead working truck, wherein the turntable seat device comprises a turntable seat, a follower seat and a pitching driving member; the follow-up seat pitching angle is adjustably arranged on the turntable seat, and the pitching driving piece is arranged on the turntable seat and is in driving connection with the follow-up seat so as to adjust the pitching angle of the follow-up seat.

In an embodiment of the present invention, the turntable seat device further includes a first tilt sensor and a controller, the first tilt sensor is disposed on the arm support and is used for detecting a real-time tilt angle of the arm support, and the controller is respectively connected with the tilt driving member and the first tilt sensor in a communication manner and is configured to:

receiving the real-time pitching angle of the arm support;

and controlling the pitching driving piece to adjust the pitching angle of the follow-up seat according to the real-time pitching angle of the arm support.

In an embodiment of the present invention, controlling the pitch driving member to adjust the pitch angle of the follower seat according to the real-time pitch angle of the arm support includes:

comparing the real-time pitching angle of the arm support with a preset angle range;

and under the condition that the real-time pitching angle of the arm support is in a preset angle range, controlling the pitching driving piece to adjust the pitching angle of the follow-up seat at a synchronous angular speed, wherein the synchronous angular speed is determined according to a preset calculation formula and the real-time angular speed of the arm support.

In the embodiment of the invention, the preset calculation formula is as follows:

wherein ω1 is the synchronous angular velocity of the follow-up seat, ω2 is the pitch angle velocity of the arm support, β2 is the maximum pitch angle of the seat, α1 is the minimum threshold value in the preset angle range, and α2 is the maximum threshold value in the preset angle range.

In the embodiment of the invention, after comparing the real-time pitching angle of the arm support with the preset angle range, the method further comprises the following steps:

and under the condition that the real-time pitching angle of the arm support is larger than a preset maximum angle threshold value, controlling the pitching driving piece to stop adjusting the pitching angle of the follow-up seat.

In an embodiment of the present invention, the turntable seat device further includes a second tilt sensor disposed on the follower seat and configured to detect a real-time tilt angle of the follower seat, and the controller is communicatively connected to the second tilt sensor and further configured to:

receiving the real-time pitching angle of the arm support and the real-time pitching angle of the follow-up seat;

and controlling the pitching driving piece to adjust the pitching angle of the follow-up seat under the condition that the real-time pitching angle of the arm support is in a preset angle range and the real-time pitching angle of the follow-up seat does not exceed the maximum pitching angle.

In an embodiment of the invention, the turntable seating arrangement further comprises an operator station provided on the follower seat and communicatively connected to the controller, the controller being further configured to:

when receiving a manual control command from the console, the pitch drive 3 is controlled to stop adjusting the pitch angle of the follower seat.

In the embodiment of the invention, the follow-up seat comprises a fixed base and a seat body, wherein the fixed base is fixedly arranged on a swivel base, an avoidance space for the lower hem of the seat body is formed at the rear end of the fixed base, a pitching driving piece is arranged at the front end of the fixed base and used for lifting or lowering the front end of the seat body, a first hinging seat is arranged between the pitching driving piece and the avoidance space of the fixed base, and the pitching angle of the seat body is adjustably arranged on the first hinging seat.

In the embodiment of the invention, the seat body is provided with the second hinging seat, the fixed base is also provided with the third hinging seat positioned between the first hinging seat and the second hinging seat, the pitching driving piece is a telescopic oil cylinder, and two ends of the telescopic oil cylinder are hinged with the second hinging seat and the third hinging seat in a one-to-one correspondence manner.

In order to achieve the above object, the present invention also provides an overhead working truck, wherein the overhead working truck comprises the turntable seat device.

Through the technical scheme, the turntable seat device provided by the embodiment of the invention has the following beneficial effects:

when the overhead working truck uses the turntable seat device, due to the fact that the turntable seat device comprises the turntable seat, the follow-up seat and the pitching driving piece, when an operator controls the arm support to swing upwards or downwards, the pitching driving piece drives the follow-up seat to follow the arm support to swing, in the process, the operator can lean against the backrest of the follow-up seat all the time, the top end of the arm support can be directly observed without head lifting, the working intensity of the operator is reduced, fatigue and discomfort of the operator due to long-time operation are avoided, and the operation efficiency and the operation accuracy of the operator are improved.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide an understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:

FIG. 1 is a schematic view of a turret seat assembly according to one embodiment of the invention;

FIG. 2 is a schematic view of an initial state of a turret seat apparatus according to an embodiment of the invention;

FIG. 3 is a control logic diagram of a turret seat apparatus according to one embodiment of the invention;

FIG. 4 is a schematic view of a turret seat assembly and arm support in an embodiment in accordance with the invention;

fig. 5 is a schematic view showing an initial state of the turret seat device and the arm rest according to an embodiment of the invention.

Description of the reference numerals

1. Swivel seat 2 follow-up seat

21. Seat body with fixed base 22

221. Space is dodged to mounting plate 23

24. First hinge seat 25 second hinge seat

26. Third hinging seat 27 operating rod

28. Display 29 working platform

3. Pitch driving piece 4 arm support

5. First inclination sensor of support cylinder 7

8. Manual operation module of second inclination angle sensor 9

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.

The turntable seating unit of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1, the present invention provides a turret seat device, wherein the turret seat device includes:

a turret base 1;

the follow-up seat 2 is arranged on the turntable seat 1 in an adjustable pitching angle;

the pitching driving piece 3 is arranged on the turntable seat 1 and is in driving connection with the follow-up seat 2 so as to adjust the pitching angle of the follow-up seat 2.

When the overhead working truck uses the turntable seat device, due to the fact that the turntable seat device comprises the turntable seat 1, the follow-up seat 2 and the pitching driving piece 3, when an operator controls the arm support 4 to deflect upwards or downwards, the pitching driving piece 3 drives the follow-up seat 2 to deflect along with the arm support 4, in the process, the operator can lean on the backrest of the follow-up seat 2 all the time, the top end of the arm support 4 can be directly observed without head lifting, the working strength of the operator is reduced, fatigue and discomfort of the operator due to long-time operation are avoided, and the operation efficiency and the operation accuracy of the operator are improved.

In the embodiment of the present invention, the turntable seat device further includes a first tilt sensor 7 and a controller, wherein the first tilt sensor 7 is disposed on the arm support 4 and is used for detecting a real-time tilt angle of the arm support 4, and the controller is respectively in communication connection with the tilt driving member 3 and the first tilt sensor 7 and is configured to:

receiving the real-time pitching angle of the arm support 4;

the pitching driving piece 3 is controlled to adjust the pitching angle of the follow-up seat 2 according to the real-time pitching angle of the arm support 4.

The pitching angle of the follow-up seat 2 is automatically adjusted through the controller and the first inclination sensor 7, when the arm support 4 swings upwards, the pitching driving piece 3 drives the follow-up seat 2 to rotate backwards, when the arm support 4 swings downwards, the pitching driving piece 3 drives the follow-up seat 2 to rotate forwards, and the turntable seat device can correspondingly adjust along with the pitching change of the arm support 4, so that an operator can concentrate on controlling the arm support 4.

Specifically, the back rear side of the follow-up seat 2 is provided with an electric cabinet, and the controller is provided in the electric cabinet.

In this embodiment of the present invention, the controlling the pitch driving member 3 to adjust the pitch angle of the follower seat 2 according to the real-time pitch angle of the boom 4 includes:

comparing the real-time pitching angle of the arm support 4 with a preset angle range;

and under the condition that the real-time pitching angle of the arm support 4 is within the preset angle range, controlling the pitching driving piece 3 to adjust the pitching angle of the follow-up seat 2 at a synchronous angular speed, wherein the synchronous angular speed is determined according to a preset calculation formula and the real-time angular speed of the arm support 4.

When an operator controls the arm support 4, the pitching angle of the arm support 4 is changed in real time, and the angular speed of the follow-up seat 2 is adjusted based on the angular speed of the arm support 4, so that pitching motions of the arm support 4 and the follow-up seat can be synchronously performed, and the operator can observe the top end of the arm support 4 conveniently.

In the embodiment of the invention, the preset calculation formula is as follows:

wherein ω1 is the synchronous angular velocity of the follower seat 2, ω2 is the pitch angle velocity of the boom 4, β2 is the maximum pitch angle of the follower seat 2, α1 is the minimum threshold value in the preset angle range, and α2 is the maximum threshold value in the preset angle range.

The controller can control the angular speed of the follow-up seat 2 according to the relational expression, so that the follow-up seat 2 can follow the arm support 4 to perform pitching motion, and the condition that an operator can directly observe the top end of the arm support 4 is ensured, and head-up observation is not needed. For different types or models of overhead working trucks, the lengths of the arm frames 4 are different, and the minimum threshold value, the maximum threshold value and the maximum pitch angle of the follow-up seat 2 can be set specifically according to actual conditions.

In the embodiment of the present invention, after comparing the real-time pitching angle of the boom 4 with the preset angle range, the method further includes:

and under the condition that the real-time pitching angle of the arm support 4 is larger than a preset maximum angle threshold value, controlling the pitching driving piece 3 to stop adjusting the pitching angle of the follow-up seat 2.

The purpose of the maximum threshold value is to avoid discomfort to the operator due to the excessive angle at which the follower seat 2 is flipped backward. In particular, the maximum threshold value may preferably be 55 °, and when the real-time pitch angle of the boom 4 exceeds 55 °, the pitch angle of the follower seat 2 is not changed any more even if the boom 4 continues to swing upward. Further, a horizontal driving member may be further provided to drive the follower seat 2 to move back and forth on the turntable seat 1, when the real-time pitching angle of the arm support 4 exceeds the maximum threshold, in order to ensure the riding comfort of the operator, the follower seat 2 is not rotated backward, and at this time, the follower seat 2 may be driven to move backward by the horizontal driving member, so that the top end of the arm support 4 is in the visual field of the operator.

In addition, since the human eye itself has a vertical view of a certain angle, when the real-time pitch angle of the boom 4 is smaller than the minimum threshold value, the operator can easily observe the condition of the top end of the boom 4 even without changing the pitch angle of the follower seat 2, and therefore, when the real-time pitch angle of the boom 4 is smaller than the minimum threshold value, the controller controls the pitch driver 3 to stop adjusting the pitch angle of the follower seat 2. In particular, the minimum threshold may preferably be 10 °.

In an embodiment of the present invention, the turntable seating device further includes a second tilt sensor 8, the second tilt sensor 8 being disposed on the follower seat 2 and configured to detect a real-time tilt angle of the follower seat 2, the controller being communicatively connected to the second tilt sensor 8 and further configured to:

receiving the real-time pitching angle of the arm support 4 and the real-time pitching angle of the follow-up seat 2;

and controlling the pitching driving piece 3 to adjust the pitching angle of the follow-up seat 2 under the condition that the real-time pitching angle of the arm support 4 is in a preset angle range and the real-time pitching angle of the follow-up seat 2 does not exceed the maximum pitching angle.

The purpose of setting the maximum pitch angle of the follower seat 2 is also to avoid discomfort to the operator due to the excessive angle at which the follower seat 2 is flipped backward.

In an embodiment of the present invention, the turntable seating arrangement further comprises an operation table provided on the follower seat 2 and communicatively connected to a controller, the controller being further configured to:

and when receiving a manual control command sent by the operation table, controlling the pitching driving member 3 to stop adjusting the pitching angle of the follow-up seat 2.

The operating table is provided with a manual operation module 9 for an operator to manually control the pitching angle of the follow-up seat 2. The manual operation module 9 is mainly used for facilitating the operator to go up and down the turntable seat device, and when the follow-up seat 2 is in the inclined state, if the operator needs to leave the follow-up seat 2, the follow-up seat 2 can be restored to the horizontal state through the manual operation module 9.

Specifically, the turntable seat device further includes a storage medium, the storage medium can store the tilting angle of the follow-up seat 2, and when the operator returns the follow-up seat 2 to the horizontal state through the manual operation module 9, if the follow-up seat 2 needs to be returned to the tilting angle before the manual operation, the controller reads the storage medium and controls the tilting drive member 3 to drive the follow-up seat 2 to return to the tilting angle before the manual operation. Of course, the operator can also manually adjust the pitch angle of the follower seat 2 through the manual operation module 9.

Further, for different drivers, due to different heights and riding habits, the visual field ranges of the drivers also have certain differences, so that the pitching angle of the follow-up seat 2 can be manually adjusted before the arm support 4 is operated through the manual adjusting module, so that better riding comfort is obtained. When the real-time pitching angle of the arm support 4 is larger than the minimum threshold value, the controller controls the pitching driving piece 3 again, the pitching angle of the follow-up seat 2 is changed on the basis of manual adjustment, and compared with the technical scheme that the real-time pitching angle of the follow-up seat 2 and the real-time pitching angle of the arm support 4 are in one-to-one correspondence, the real-time pitching angle of the arm support 4 can be freely adjusted according to habits of operators, and riding comfort is better.

In the embodiment of the invention, the follow-up seat 2 comprises a fixed base 21 and a seat body 22, the fixed base 21 is fixedly arranged on the swivel base 1, an avoidance space 23 for the lower hem of the seat body 22 is formed at the rear end of the fixed base 21, the pitching driving member 3 is arranged at the front end of the fixed base 21 and is used for lifting or lowering the front end of the seat body 22, a first hinge base 24 is arranged between the pitching driving member 3 and the avoidance space 23 on the fixed base 21, and the pitching angle of the seat body 22 is adjustably arranged on the first hinge base 24. When the front end of the seat body 22 is lifted, the rear end of the seat body 22 falls into the avoidance space 23, and compared with the scheme that the rear end of the seat body 22 is provided with a hinge point, the front end of the seat body 22 has smaller deflection amplitude under the condition of the same pitching angle, so that the working stroke of the pitching driving member 3 can be reduced; and the hinge point is arranged at the middle position of the seat body 22 and is closer to the gravity center of an operator, so that discomfort brought to the operator during pitching adjustment of the seat body 22 is reduced.

Specifically, an operation lever 27 for controlling the arm rest 4 is provided on the seat body 22 so as to be operated by an operator. Further, the seat body 22 includes a mounting base 221, the pitch angle of the mounting base 221 is adjustably disposed on the first hinge base 24, the front side of the mounting base 221 is provided with a display 28, the display 28 is used for helping an operator observe the arm support 4, and the display 28 can rotate synchronously with the mounting base 221, so that the operator can observe the content on the display 28 in a head-up manner. Further, the follower seat 2 further comprises a working platform 29 surrounding the fixed base 21, the working platform 29 is higher than the fixed base 21, and the height difference between the working platform 29 and the fixed base 21 is equal to the thickness of the mounting base 221, so that when the seat body 22 is horizontally placed on the fixed base 21, the mounting base 221 is flush with the working platform 29, thereby being convenient for an operator to move and to up and down the follower seat 2.

In the embodiment of the invention, the seat body 22 is provided with the second hinging seat 25, the fixed base 21 is also provided with the third hinging seat 26 positioned between the first hinging seat 24 and the second hinging seat 25, the pitching driving element 3 is a telescopic oil cylinder, two ends of the telescopic oil cylinder are respectively hinged with the second hinging seat 25 and the third hinging seat 26 in a one-to-one correspondence manner, and the pitching angle of the seat body 22 is adjusted in a linear pushing manner.

Specifically, the third hinge base 26 extends downward from the fixed base 21, and the inclination angle of the telescopic cylinder is larger, so that the pressure angle when the telescopic cylinder linearly pushes the seat body 22 is smaller, and the load born by the telescopic cylinder is reduced.

Further, the cylinder barrel of the telescopic oil cylinder is hinged with the second hinging seat 25, the piston rod of the telescopic oil cylinder is hinged with the third hinging seat 26, and the hydraulic oil pipeline is communicated with the rodless cavity of the telescopic oil cylinder.

In connection with the control logic of the turntable seat device shown in fig. 3, the working flow of the turntable seat device when the arm support 4 swings upwards in an embodiment of the present invention will be described:

as shown in fig. 5, the turntable seat device is in an initial state, an operator controls the operating rod 27, the arm support 4 is lifted under the action of the supporting oil cylinder 5, and the first inclination sensor 7 collects an angle signal of the arm support 4 and transmits the angle signal to the controller;

when the real-time pitching angle of the arm support 4 is smaller than the minimum threshold value, the controller does not give an action command to the telescopic oil cylinder, and the follow-up seat 2 keeps an initial state still;

when the real-time pitching angle of the arm support 4 is larger than the minimum threshold value and smaller than the maximum threshold value, the follower seat 2 needs to synchronously correspond to the rotation angle of 0-maximum seat rotation angle beta 2. In the process, the first inclination sensor 7 collects angle signals corresponding to the arm support 4 and feeds the angle signals back to the controller, the controller synchronously receives angle signals of the second inclination sensor 8 corresponding to the follow-up seat 2, the controller gives a forward pushing command to the telescopic cylinder, the telescopic cylinder and the supporting cylinder 5 enter synchronous action, and the angular speed of the follow-up seat 2 and the angular speed of the arm support 4 meet the following relational expression:

ω1＝k1×ω2；

K1＝(β2)/(α2-α1)；

when the real-time pitching angle of the arm support 4 is larger than the maximum threshold value, the controller receives the angle signal of the second tilt angle receiving sensor and sends a stop instruction to the telescopic oil cylinder, and the follow-up seat 2 stops acting.

When the arm support 4 swings downwards, the turntable seat device performs the above operation procedure reversely.

Further, in the embodiment of the present invention, the supporting cylinder 5 and the telescopic cylinder are both hydraulically driven, so that the angular velocity of the boom 4 can be calculated from the oil inlet or oil return velocity of the supporting cylinder 5, and the angular velocity of the follower seat 2 is calculated according to the above relation, and the oil inlet or oil return velocity of the telescopic cylinder is calculated again from the angular velocity of the follower seat 2, and the controller controls the follower seat 2 to perform pitching motion along with the boom 4 by controlling the oil inlet or oil return velocity of the telescopic cylinder.

Of course, the present invention is not limited to this, and the pitch drive member 3 of the turret seat apparatus may be an electric push rod. Further, the driving mode of the pitching driving member 3 is not limited to linear pushing such as an electric push rod and a telescopic cylinder, and the pitching driving member 3 may be a turnover mechanism arranged at the turnover center of the follow-up seat 2, and the follow-up seat 2 is directly driven to perform pitching adjustment through the rotating shaft of the motor.

In order to achieve the above object, the present invention further provides an overhead working truck, wherein the overhead working truck includes the turntable seat device, and the overhead working truck adopts all the technical solutions of the turntable seat device, so that the overhead working truck has at least the above advantages, and will not be described in detail herein.

In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (10)

1. A turret seat apparatus, the turret seat apparatus comprising:

a turret base (1);

the follow-up seat (2) is provided with an adjustable pitching angle on the turntable seat (1);

the pitching driving piece (3) is arranged on the turntable seat (1) and is in driving connection with the follow-up seat (2) so as to adjust the pitching angle of the follow-up seat (2).

2. Turntable seating arrangement according to claim 1, characterized in that it further comprises a first tilt sensor (7) and a controller, said first tilt sensor (7) being provided on the boom (4) and being adapted to detect a real-time tilt angle of the boom (4), said controller being communicatively connected to the tilt drive (3) and the first tilt sensor (7), respectively, and being configured to:

receiving a real-time pitching angle of the arm support (4);

and controlling the pitching driving piece (3) to adjust the pitching angle of the follow-up seat (2) according to the real-time pitching angle of the arm support (4).

3. Turret seat arrangement according to claim 2, wherein said controlling the pitch drive (3) to adjust the pitch angle of the follower seat (2) according to the real-time pitch angle of the boom (4) comprises:

comparing the real-time pitching angle of the arm support (4) with a preset angle range;

and under the condition that the real-time pitching angle of the arm support (4) is in the preset angle range, controlling the pitching driving piece (3) to adjust the pitching angle of the follow-up seat (2) at a synchronous angular speed, wherein the synchronous angular speed is determined according to a preset calculation formula and the real-time angular speed of the arm support (4).

4. A turret seat assembly as claimed in claim 3, wherein the predetermined calculation formula is:

wherein ω1 is the synchronous angular velocity of the follower seat (2), ω2 is the pitch angle velocity of the arm support (4), β2 is the maximum pitch angle of the follower seat (2), α1 is the minimum threshold value in the preset angle range, and α2 is the maximum threshold value in the preset angle range.

5. A turret seat arrangement according to claim 3, characterized in that after said comparing the real-time pitch angle of the boom (4) with a preset angle range, it further comprises:

and under the condition that the real-time pitching angle of the arm support (4) is larger than a preset maximum angle threshold value, controlling the pitching driving piece (3) to stop adjusting the pitching angle of the follow-up seat (2).

6. The turntable seating arrangement according to claim 2, further comprising a second tilt sensor (8), said second tilt sensor (8) being provided on said follower seat (2) and being adapted to detect a real-time tilt angle of said follower seat (2), said controller being communicatively connected to said second tilt sensor (8) and being further configured to:

receiving a real-time pitching angle of the arm support (4) and a real-time pitching angle of the follow-up seat (2);

and controlling the pitching driving piece (3) to adjust the pitching angle of the follow-up seat (2) under the condition that the real-time pitching angle of the arm support (4) is in a preset angle range and the real-time pitching angle of the follow-up seat (2) does not exceed the maximum pitching angle.

7. The turret seat assembly according to claim 2, further comprising an operator station provided on the follower seat (2) and communicatively connected to the controller, the controller being further configured to:

and under the condition that a manual control instruction sent by the operation platform is received, controlling the pitching driving piece (3) to stop adjusting the pitching angle of the follow-up seat (2).

8. Turntable seat device according to any one of claims 1 to 7, characterized in that the follower seat (2) comprises a fixed base (21) and a seat body (22), the fixed base (21) is fixedly arranged on the turntable seat (1), a back end of the fixed base (21) is provided with an avoidance space (23) for the seat body (22) to swing down, the pitching driving member (3) is arranged at the front end of the fixed base (21) and is used for lifting or lowering the front end of the seat body (22), a first hinge seat (24) is arranged between the pitching driving member (3) and the avoidance space (23), and the pitching angle of the seat body (22) is adjustably arranged on the first hinge seat (24).

9. Turntable seat arrangement according to claim 8, characterized in that a second hinging seat (25) is arranged on the seat body (22), a third hinging seat (26) is arranged between the first hinging seat (24) and the second hinging seat (25) on the fixed base (21), the pitching driving element (3) is a telescopic cylinder, and two ends of the telescopic cylinder are hinged with the second hinging seat (25) and the third hinging seat (26) in a one-to-one correspondence respectively.

10. An overhead working truck, characterized in that it comprises a turret seat arrangement according to any one of claims 1-9.