CN212334537U - Crank arm type overhead working truck capable of automatically adjusting balance weight position - Google Patents

Abstract

The utility model discloses a but crank arm formula high altitude construction car of automatically regulated counter weight position, which comprises a vehicle rack body, crank arm frame, the counter weight, measuring unit and the control unit, the frame body has chassis and revolving stage, crank arm frame one end articulates in the revolving stage other end and connects the work platform, the counter weight passes through drive structure with the revolving stage and is connected, drive structure is used for driving the counter weight along the revolving stage back-and-forth movement, measuring unit is used for measuring length L0 and the pivoted angle alpha that lifts the leveling arm, the inclination beta of loading capacity and frame body on the work platform, the control unit is used for receiving the data that measuring unit detected and controls the counter weight and remove to the ideal position. The utility model discloses a measuring element detects the focus position of high altitude construction car, utilizes the control unit to adjust the distance between counter weight and the revolving stage in real time to adjust the focus position on chassis, keep this crank arm formula high altitude construction car holistic moment balance, with stability and the security that improves high altitude construction car operation in-process.

Description

Crank arm type overhead working truck capable of automatically adjusting balance weight position

Technical Field

The utility model relates to an engineering van technical field especially relates to a but crank arm formula high altitude construction car of automatically regulated counter weight position.

Background

The crank arm type overhead working truck is lifting equipment for overhead working, can cross obstacles to carry out the overhead working, can work while walking when a platform is lifted to any position, has an intersected cantilever crane structure, is more flexible in steering, can enter a narrow passage and a crowded working area to work, and is generally used for indoor suspended ceilings and overhead working in open places.

The crank arm type overhead working truck can adjust the working height and the working amplitude through the swing arm in the working process, in order to ensure the stability of the whole truck, a balance weight is usually arranged on the working truck to increase the dead weight of the whole truck and improve the stable torque of the whole truck, so that the working height of the crank arm type overhead working truck is higher, the weight of the whole truck is heavier when the working amplitude is larger, the weight of the whole truck can be reduced on the same working height and amplitude, and the problem that the stability of the crank arm type overhead working truck is urgently needed to be solved can be ensured.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a but crank arm formula high altitude construction car of automatically regulated counter weight position can the automatically regulated counter weight position in order to realize can lightening whole car weight on equal operation height and range, can guarantee vehicle stability again.

The utility model provides a but crank arm formula high altitude construction car of automatically regulated counter weight position, a serial communication port, include:

the frame body is provided with a chassis and a rotary table arranged on the chassis;

the bent arm frame is provided with a folding arm and a lifting leveling arm, one end of the folding arm is hinged with the rotary table, the other end of the folding arm is hinged with the lifting leveling arm, and the other end of the lifting leveling arm is connected with the operation platform;

the counterweight is connected to one end of the rotary table, a driving structure is arranged between the counterweight and the rotary table, and the driving structure is used for driving the counterweight to move back and forth along the rotary table;

the measuring unit comprises a long angle sensor, a weighing sensor and an inclination angle sensor, the long angle sensor is arranged on the lifting leveling arm and is used for measuring the rotating angle alpha of the lifting leveling arm relative to the rotary table and the length L0 of the lifting leveling arm, the weighing sensor is arranged on the working platform and is used for measuring the load capacity on the working platform, and the inclination angle sensor is arranged on the rotary table and is used for measuring the inclination angle beta of the frame body relative to the horizontal ground;

and the control unit is connected with the measuring unit and the driving structure, and is used for receiving data measured by the long angle sensor, the weighing sensor and the inclination angle sensor and calculating the data so as to control the driving structure to drive the counterweight to move to an ideal position.

Preferably, the weight includes:

a counterweight body, one side of which is provided with a groove;

the bottom of the connecting piece is connected to the side part of the bottom surface of the counterweight body and connected to the bottom surface of the groove, and one end of the rotary table extends into the groove and is connected with the bottom of the connecting piece through a sliding structure.

Preferably, the connector comprises:

the first connecting plate is matched with the bottom surface of the counterweight body;

the second connecting plate is vertically connected with the first connecting plate, the second connecting plate is matched with the width of the groove, and the second connecting plate is fixedly connected with the bottom surface of the groove through a fastener.

Preferably, the turntable comprises:

the bottom plate is connected to the upper surface of the chassis;

and the side plates are vertically connected to the two sides of the bottom plate.

Preferably, the sliding structure includes:

the sliding chutes are symmetrically arranged on the left side and the right side of the upper surface of the first connecting plate;

the pulleys are symmetrically arranged on the outer side edges of the side plates and connected in the sliding grooves.

Preferably, the bottom of the two side faces of the groove of the counterweight body is provided with a clamping groove, and the sliding groove is clamped in the clamping groove.

Preferably, the pulleys are arranged in parallel in two or more numbers.

Preferably, the fixed end of the driving structure is connected to the bottom plate, and the movable end of the driving structure is connected to the second connecting plate.

Preferably, the driving structure is any one of a hydraulic oil cylinder, an air cylinder and an electric push rod.

Preferably, the turntable further comprises a length sensor arranged on the side plate, and the length sensor is connected with the control unit and used for measuring the position size of the counterweight and transmitting the position size to the control unit.

The utility model provides a pair of but crank arm formula high altitude construction car of automatically regulated counter weight position, through setting up detecting element, the lifting leveling arm turned angle data of accessible each sensor detection high altitude construction car in high altitude construction car working process, chassis inclination data and operation platform's load data and feedback to the control unit, the position size that can judge the counter weight after the control unit calculates received data, and control drive structure removes to thinking the position along the revolving stage with the drive counter weight, the focus position on chassis can be adjusted to the additional counter weight that does not need to increase, make this crank arm formula high altitude construction car holistic moment keep balance, compare traditional high altitude construction car, this crank arm formula high altitude construction car is under same operation height and operation range, whole car weight has not only been alleviateed, and its stability and security have effectively been improved.

Drawings

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

Fig. 1 is a structural diagram of a crank arm type aerial work vehicle capable of automatically adjusting the position of a counterweight according to an embodiment of the present invention;

fig. 2 is a three-dimensional structure diagram of the crank arm type aerial work platform capable of automatically adjusting the position of the counterweight according to the embodiment of the present invention;

FIG. 3 is a perspective view of the other angle of FIG. 2;

FIG. 4 is an enlarged view of a portion A of FIG. 3;

fig. 5 is a three-dimensional structure diagram of the counterweight and the turntable assembly in the crank-type aerial work platform capable of automatically adjusting the position of the counterweight according to the embodiment of the present invention;

FIG. 6 is an enlarged view of portion B of FIG. 5;

fig. 7 is a three-dimensional structure diagram of a connecting member in a counterweight of a crank arm type overhead working truck capable of automatically adjusting the position of the counterweight according to the embodiment of the present invention;

fig. 8 is a three-dimensional structure diagram of a turntable of a crank arm type aerial work platform truck capable of automatically adjusting the position of a counterweight according to an embodiment of the present invention.

The lifting and leveling device comprises a frame body 1, a frame body 2, a crank arm frame 3, a counterweight 4, a working platform 5, a driving structure 6, a long angle sensor 7, a weighing sensor 8, an inclination angle sensor 11, a chassis 12, a turntable 21, a folding arm 22, a lifting and leveling arm 23, a hinge point 31, a counterweight body 32, a connecting piece 121, a bottom plate 122, a side plate 123, a pulley 124, a length sensor 321, a first connecting plate 322, a second connecting plate 323 and a sliding chute.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is usually placed when in use, and are used for convenience of description and simplification of description, but do not refer to 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 the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.

A crank arm type aerial work vehicle capable of automatically adjusting the position of a counterweight comprises:

a carriage body 1 having a chassis 11 and a turntable 12 provided on the chassis 11;

the crank arm frame 2 is provided with a folding arm 21 and a lifting leveling arm 22, one end of the folding arm 21 is hinged with the rotary table 12, the other end of the folding arm is hinged with the lifting leveling arm 22, and the other end of the lifting leveling arm 22 is connected with the operation platform 4;

the counterweight 3 is connected to one end of the rotary table 12, a driving structure 5 is arranged between the counterweight 3 and the rotary table 12, and the driving structure 5 is used for driving the counterweight 3 to move back and forth along the rotary table 12;

the measuring unit comprises a long angle sensor 6, a weighing sensor 7 and an inclination angle sensor 8, wherein the long angle sensor 6 is arranged on the lifting leveling arm 22 and is used for measuring the rotating angle alpha of the lifting leveling arm 22 relative to the rotary table 12 and the length L0 of the lifting leveling arm 22, the weighing sensor 7 is arranged on the working platform 4 and is used for measuring the load capacity on the working platform 4, and the inclination angle sensor 8 is arranged on the rotary table 12 and is used for measuring the inclination angle beta of the frame body 1 relative to the horizontal ground;

and the control unit is connected with the measuring unit and the driving structure 5, and is used for receiving the data measured by the long angle sensor 6, the weighing sensor 7 and the inclination angle sensor 8 and calculating to control the driving structure 5 to drive the counterweight 3 to move to a desired position.

The chassis 11 of the frame body 1 may include a four-wheel driving mechanism for driving the frame body 1 to move and a base provided on the driving mechanism, the turntable 12 may be connected to the chassis 11 through a rotating shaft, and the turntable 12 may rotate relative to the chassis 11.

The crank arm frame 2 is used for supporting the lifting operation platform 4, the folding arm 21 and the telescopic adjusting arm 22 are hinged to the hinge point 23, the folding arm 21 may include a first folding arm and a second folding arm which are hinged to each other, and the lifting leveling arm 22 may include a telescopic arm for further adjusting the height of the operation platform 4 and a leveling arm for adjusting the operation platform 4 to maintain a horizontal state.

Wherein, counter weight 3 can be connected in the tail end of revolving stage 12 through the slide rail, and drive structure 5 can be any one in hydraulic cylinder, electric putter, and 5 one ends of drive structure are fixed in on the revolving stage 12 the other end and are connected with counter weight 3 for the focus position of drive counter weight 3 along the back-and-forth movement of revolving stage 12 in order to adjust frame body 1 guarantees the stability of whole car.

The long angle sensor 6 in the measuring unit is used for measuring the rotation angle alpha of the lifting leveling arm 22 relative to the rotary table 12 and the length L0 of the lifting leveling arm 22 (namely the distance from the hinge point 23 to the tail end of the working platform 4), the weighing sensor 7 is used for measuring the load weight G1 on the working platform 4, the inclination angle sensor 8 is used for measuring the inclination angle beta of the frame body 1 relative to the horizontal ground, and the measuring unit is connected with the control unit and is used for directly transmitting the detected data to the control unit.

The control unit is used for receiving the data transmitted by the measuring unit, calculating the ideal position size of the counterweight and controlling the driving structure 5 to work so as to move the counterweight 3 to the corresponding position.

Specifically, referring to fig. 1, the working principle of the present embodiment is as follows:

according to the relation between the tilting moment and the stabilizing moment, the following conditions are obtained: m1 × K is M2+ M3 (where M1 is the tilting moment of the crank-arm type aerial platform, M2 is the stabilizing moment generated by the whole vehicle weight of the crank-arm type aerial platform, M3 is the stabilizing moment generated by the counterweight 3, and K is a compensation coefficient that can be set between 1.1 and 1.3); wherein, M1 ═ G1 (L0 ═ cos (α - β) -L1) ×, as can be seen from the above, L0, α, β and G1 can be obtained from the data collected by the measuring unit, and L1 is the distance from the hinge point 23 to the tip over line set to a fixed value; wherein, M2 is G2L 2, M3 is G3L 3, G2 is the total vehicle weight of the crank-arm type aerial work vehicle, G3 is the self weight of the counterweight 3, L2 is the distance from the point a of the center of gravity of the crank-arm type aerial work vehicle to the tipping line is set as a fixed value, and L3 is the distance from the point B of the center of gravity of the counterweight 3 to the tipping line, therefore, the numerical value of L3 can be calculated by combining the above relational expression, the position size of the counterweight 3 is judged, and the control unit controls the driving structure 5 to work to move the counterweight 3 to the ideal position.

Therefore, the crank arm type overhead working truck capable of automatically adjusting the position of the counterweight provided by the utility model is provided with the detection unit, during the working process of the high-altitude operation vehicle, the rotation angle data and the length data of the lifting leveling arm, the inclination angle data of the chassis and the load data of the operation platform of the high-altitude operation vehicle can be detected by each sensor and fed back to the control unit, the control unit can judge the position size of the counterweight after calculating the received data, and the driving structure is controlled to drive the balance weight to move to an ideal position along the rotary table, the gravity center position of the chassis can be adjusted without additionally adding the balance weight, so that the integral moment of the crank arm type overhead working truck keeps balance, compared with the traditional overhead working truck, the crank arm type overhead working truck not only reduces the weight of the whole truck, but also effectively improves the stability and the safety of the truck under the condition of the same working height and working amplitude.

Further, the counterweight 3 may include:

a weight body 31 having a groove at one side thereof;

and a connecting member 32 having a bottom connected to the side of the bottom of the weight body 31 and connected to the bottom of the groove, wherein one end of the turntable 12 extends into the groove and is connected to the bottom of the connecting member 32 through a sliding structure.

Specifically, referring to fig. 5 and 7, the weight body 31 may be provided with a "concave" structure, and the connecting member 32 may include:

a first connecting plate 321 adapted to the bottom surface of the counterweight body 31;

and the second connecting plate 322 is vertically connected with the first connecting plate 321, the second connecting plate 322 is matched with the width of the groove, and the second connecting plate 322 is fixedly connected with the bottom surface of the groove through a fastener.

The first connecting plate 321 and the second connecting plate 322 may be L-shaped, and may be integrally formed, or may be connected by welding, and during assembly, the first connecting plate 321 is supported on the bottom surface of the counterweight body 31, the second connecting plate 322 is attached to the bottom surface of the groove of the counterweight body 31, and may be fixed to the bottom surface of the groove by bolts.

Referring to fig. 8, the turntable 12 may include:

a base plate 121 coupled to an upper surface of the base plate 11;

and side plates 122 vertically connected to both sides of the bottom plate 121.

The bottom plate 121 and the side plate 122 may be U-shaped, and the bottom plate 121 and the side plate 122 may be connected by welding.

The fixed end of the driving structure 5 can be connected to the bottom plate 121 of the turntable 12, the movable end of the driving structure 5 can be connected to the second connecting plate 322 of the connecting member 32, and the connecting member 32 can be driven by the driving structure 5 to drive the counterweight body 31 to move back and forth relative to the turntable 12.

Referring to fig. 6 and 7, the sliding structure may include:

the sliding grooves 323 are symmetrically arranged on the left side and the right side of the upper surface of the first connecting plate 321;

the pulleys 123 are symmetrically arranged on the outer side edges of the side plates 122, and the pulleys 123 are connected in the sliding grooves 323.

Wherein, for making counterweight body 31 and connecting piece 32 be connected more firmly, can set up the joint groove in counterweight body 31's recess both sides face bottom, during the assembly, can be with spout 323 joint in this joint inslot.

In order to make the sliding of the pulley 123 smoother, two or more pulleys 123 may be arranged in parallel.

As a further preference, in order to accurately control the moving distance of the balance weight 3, the turntable 12 may further include a length sensor 124 disposed on the side plate 122 of the turntable 12, the length sensor 124 is connected with the control unit for measuring the position size of the balance weight 3 and transmitting the measured position size to the control unit, and the control unit compares the calculated ideal position size with the existing position size of the balance weight 3 so as to control the movement distance of the balance weight 3 accordingly.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. It should be noted that there are infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that various improvements, decorations or changes can be made without departing from the principles of the present invention, and the technical features can be combined in a suitable manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims (10)

1. The utility model provides a but crank arm formula high altitude construction car of automatically regulated counter weight position which characterized in that includes:

a frame body (1) having a chassis (11) and a turntable (12) provided on the chassis (11);

the crank arm frame (2) is provided with a folding arm (21) and a lifting leveling arm (22), one end of the folding arm (21) is hinged with the rotary table (12), the other end of the folding arm is hinged with the lifting leveling arm (22), and the other end of the lifting leveling arm (22) is connected with the operation platform (4);

the counterweight (3) is connected to one end of the rotary table (12), a driving structure (5) is arranged between the counterweight (3) and the rotary table (12), and the driving structure (5) is used for driving the counterweight (3) to move back and forth along the rotary table (12);

the measuring unit comprises a long angle sensor (6), a weighing sensor (7) and an inclination angle sensor (8), the long angle sensor (6) is arranged on the lifting leveling arm (22) and is used for measuring the rotating angle alpha of the lifting leveling arm (22) relative to the rotary table (12) and the length L0 of the lifting leveling arm (22), the weighing sensor (7) is arranged on the working platform (4) and is used for measuring the load capacity of the working platform (4), and the inclination angle sensor (8) is arranged on the rotary table (12) and is used for measuring the inclination angle beta of the frame body (1) relative to the horizontal ground;

and the control unit is connected with the measuring unit and the driving structure (5), and is used for receiving the data measured by the long angle sensor (6), the weighing sensor (7) and the inclination sensor (8) and calculating to control the driving structure (5) to drive the counterweight (3) to move to an ideal position.

2. The articulated arm aerial work vehicle with automatic counterweight position adjustment according to claim 1, characterized in that the counterweight (3) comprises:

a weight body (31) having a groove on one side thereof;

and the bottom of the connecting piece (32) is connected to the side part of the bottom surface of the counterweight body (31) and connected to the bottom surface of the groove, and one end of the rotary table (12) extends into the groove and is connected with the bottom of the connecting piece (32) through a sliding structure.

3. The automatic counterweight position adjustable crank arm aerial lift truck of claim 2 wherein the connector (32) comprises:

a first connecting plate (321) which is adapted to the bottom surface of the counterweight body (31);

and the second connecting plate (322) is vertically connected with the first connecting plate (321), the second connecting plate (322) is matched with the width of the groove, and the second connecting plate (322) is fixedly connected with the bottom surface of the groove through a fastener.

4. The automatic counterweight position adjustable crank arm type aerial lift truck of claim 3 wherein the turntable (12) comprises:

a bottom plate (121) connected to an upper surface of the chassis (11);

and the side plates (122) are vertically connected to two sides of the bottom plate (121).

5. The automatic counterweight position adjustable crank arm aerial lift truck of claim 4 wherein the sliding structure comprises:

the sliding chutes (323) are symmetrically arranged on the left side and the right side of the upper surface of the first connecting plate (321);

and the pulleys (123) are symmetrically arranged on the outer side edges of the side plates (122), and the pulleys (123) are connected in the sliding grooves (323).

6. The articulated arm type overhead working truck capable of automatically adjusting the position of the counterweight according to claim 5, wherein the bottom of the two side surfaces of the groove of the counterweight body (31) is provided with a clamping groove, and the sliding groove (323) is clamped in the clamping groove.

7. The automatic counterweight position adjusting crank-type aerial work platform of claim 5 wherein two or more of the pulleys (123) are arranged in parallel.

8. The articulated arm aerial work vehicle of claim 4, wherein the fixed end of the driving structure (5) is connected to the base plate (121), and the movable end of the driving structure (5) is connected to the second connecting plate (322).

9. The crank arm type aerial work platform capable of automatically adjusting the position of the counterweight as claimed in claim 1 or 8, wherein the driving structure (5) is any one of a hydraulic oil cylinder, an air cylinder and an electric push rod.

10. The articulated arm aerial work vehicle with the automatic counterweight position adjusting function of claim 4, wherein the turntable (12) further comprises a length sensor (124) arranged on the side plate (122), and the length sensor (124) is connected with the control unit for measuring the position size of the counterweight (3) and transmitting the position size to the control unit.

Images