Arm retracting mechanism for six sections of arms of overhead working truck

Abstract

The utility model discloses an overhead working truck six-section arm retracting mechanism which comprises movable arms, an extending arm assembly and a retracting arm assembly are arranged between the movable arms, and the movable arms comprise a first section arm, a second section arm, a third section arm, a fourth section arm, a fifth section arm and a sixth section arm. The telescopic arm is simple in structure and reasonable in design, the telescopic oil cylinder drives the second section of arm to retract through the telescopic oil cylinder barrel hinge point, the third section of arm is driven to retract through the second section of arm tail retracting arm pulley and the third section of arm retracting rope when the second section of arm retracts, and the fourth section of arm is driven to retract through the third section of arm tail retracting arm pulley and the fourth section of arm retracting rope when the third section of arm retracts. When the third section of arm retracts, the sixth section of arm is driven to retract through the third section of arm tail, the six section of arm retracting pulley and the six section of arm retracting rope, and meanwhile, the fifth section of arm is driven to retract when the sixth section of arm retracts, so that the overall dead weight and height of the high-altitude operation vehicle are reduced, and the safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering machinery industry technical field, concretely is a kind of high-altitude working truck six-section arm arm retraction mechanism. BACKGROUND

[0002] High-altitude working truck is used to transport personnel, tool and material to specified position and carry out the equipment of work, and the telescopic arm is realized by arm frame inner hydraulic cylinder driving arm rope, arm retraction rope.

[0003] The deficiencies of prior art are:

[0004] At present, when high-altitude working truck is in arm retraction operation, fifth section arm and sixth section arm are realized by fifth arm retraction rope, sixth arm retraction rope and five-section arm tail arm retraction pulley and six-section arm tail arm retraction pulley, so that the cross section height of telescopic arm becomes larger, and the overall height and dead weight of high-altitude working truck become larger, which has the risk of overweight and overheight for high-altitude working truck. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high-altitude working truck six-section arm arm retraction mechanism to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of high-altitude working truck six-section arm arm retraction mechanism, including movable arm, the movable arm between being provided with arm extension assembly and arm retraction assembly, the movable arm includes first section arm, second section arm, third section arm, fourth section arm, fifth section arm and sixth section arm, the arm retraction assembly includes:

[0007] Transmission part, the transmission part is connected the movable arm;

[0008] Second section arm tail arm retraction pulley, the second section arm tail arm retraction pulley is set to the second section arm tail, and the second section arm tail arm retraction pulley is connected the third section arm by being connected with third section arm retraction rope;

[0009] Third section arm tail arm retraction pulley, the third section arm tail arm retraction pulley is set to the third section arm tail, and the third section arm tail arm retraction pulley is connected the fourth section arm by being connected with fourth section arm retraction rope;

[0010] Third section arm tail six-section arm arm retraction pulley, the third section arm tail six-section arm arm retraction pulley is set to the third section arm tail;

[0011] Six-section arm arm retraction piece, the six-section arm arm retraction piece is set to the third section arm.

[0012] Preferably, the transmission member comprises a telescopic oil cylinder, a telescopic oil cylinder cylinder hinge point and a cylinder head telescopic arm pulley, the telescopic oil cylinder is arranged on the first arm, the telescopic oil cylinder cylinder hinge point is arranged on the telescopic oil cylinder, and the cylinder head telescopic arm pulley is arranged on the top of the telescopic oil cylinder.

[0013] Preferably, the six-arm telescopic arm member comprises:

[0014] A three-arm tail six-arm telescopic arm hinge point is arranged on the third arm.

[0015] A six-arm head pulley is arranged on the top of the sixth arm.

[0016] A six-arm telescopic arm rope is arranged on the three-arm tail six-arm telescopic arm hinge point and connected with the six-arm head pulley by passing through the cylinder head telescopic arm pulley and the three-arm tail telescopic arm pulley.

[0017] Preferably, the telescopic arm assembly comprises:

[0018] A two-arm head pulley is arranged on the top end of the second arm, and a three-arm telescopic arm rope is connected to the two-arm head pulley, and the three-arm telescopic arm rope is connected to the third arm.

[0019] A three-arm head pulley is arranged on the top end of the third arm, and a four-arm telescopic arm rope is connected to the three-arm head pulley, and the four-arm telescopic arm rope is connected to the fourth arm.

[0020] A four-arm head pulley is arranged on the top end of the fourth arm, and a five-arm telescopic arm rope is connected to the four-arm head pulley, and the five-arm telescopic arm rope is connected to the fifth arm.

[0021] A five-arm head pulley is arranged on the top end of the fifth arm, and a six-arm telescopic arm rope is connected to the five-arm head pulley, and the six-arm telescopic arm rope is connected to the sixth arm.

[0022] Compared with the prior art, the utility model has the advantages of:

[0023] The six-section arm retracting mechanism of the overhead working vehicle is provided with a retracting arm assembly, which comprises a transmission member, a second-section arm tail retracting arm pulley, a third-section arm tail retracting arm pulley, a third-section arm tail six-section arm retracting pulley, and a six-section arm retracting member, when retracting arm work is performed, the telescopic oil cylinder drives the second-section arm to retract through the telescopic oil cylinder cylinder hinge point, the second-section arm retracts to drive the third-section arm to retract through the second-section arm tail retracting arm pulley and the third-section arm retracting rope, the third-section arm retracts to drive the fourth-section arm to retract through the third-section arm tail retracting arm pulley and the fourth-section arm retracting rope, the third-section arm retracts to drive the sixth-section arm to retract through the third-section arm tail six-section arm retracting pulley and the sixth-section arm retracting rope, and the sixth-section arm retracts to drive the fifth-section arm to retract at the same time, compared with the fifth-section arm and the sixth-section arm retracting realized by the fifth-section arm retracting rope, the sixth-section arm retracting rope, the fifth-section arm tail retracting pulley and the sixth-section arm tail retracting pulley, the retracting arm assembly can reduce the weight and height of the overall overhead vehicle, avoid the risk of overweight and overheight, reduce the cross-section height of the movable arm, and improve safety. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is an overall structure schematic view of the utility model;

[0025] Fig. 2 It is an arm extending assembly schematic view of the utility model;

[0026] Fig. 3 It is a part structure specific schematic view of the utility model;

[0027] In the drawing: 110, movable arm; 111, first-section arm; 112, second-section arm; 113, third-section arm; 114, fourth-section arm; 115, fifth-section arm; 116, sixth-section arm; 121, transmission member; 1211, telescopic oil cylinder; 1212, telescopic oil cylinder cylinder hinge point; 1213, cylinder head retracting pulley; 122, second-section arm tail retracting arm pulley; 123, third-section arm retracting rope; 124, third-section arm tail retracting arm pulley; 125, fourth-section arm retracting rope; 126, third-section arm tail six-section arm retracting pulley; 127, sixth-section arm retracting member; 1271, third-section arm tail six-section arm retracting hinge point; 1272, sixth-section arm head pulley; 1273, sixth-section arm retracting rope; 131, second-section arm head pulley; 132, third-section arm extending rope; 133, third-section arm head pulley; 134, fourth-section arm extending rope; 135, fourth-section arm head pulley; 136, fifth-section arm extending rope; 137, fifth-section arm head pulley; 138, sixth-section arm extending rope. DETAILED DESCRIPTION

[0028] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0030] In the description of the present patent, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those of ordinary skill in the art, the specific meanings of the above terms in the present patent can be understood according to the specific circumstances.

[0031] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several" is two or more, unless otherwise explicitly specified and limited.

[0032] Embodiments

[0033] Please refer to Figs. 1-3The utility model provides a high altitude operation vehicle six section arm telescopic arm mechanism technical scheme: including movable arm 110, movable arm 110 between being provided with telescopic arm subassembly and telescopic arm subassembly, movable arm 110 includes first section arm 111, second section arm 112, third section arm 113, fourth section arm 114, fifth section arm 115 and sixth section arm 116, transmission part 121 includes telescopic cylinder 1211, telescopic cylinder cylinder hinge point 1212 and cylinder head telescopic arm pulley 1213, telescopic cylinder 1211 is installed in first section arm 111, telescopic cylinder cylinder hinge point 1212 connects first section arm 111 and second section arm 112, and cylinder head telescopic arm pulley 1213 is set up in telescopic cylinder 1211 top, telescopic arm subassembly includes transmission part 121, two section arm tail telescopic arm pulley 122, three section arm tail telescopic arm pulley 124, three section arm tail six section arm telescopic arm pulley 126 and six section arm telescopic arm piece 127, two section arm tail telescopic arm pulley 122 is installed in second section arm 112 tail, and two section arm tail telescopic arm pulley 122 is connected third section arm 113 through being connected with three section arm telescopic arm rope 123, three section arm tail telescopic arm pulley 124 is installed in third section arm 113 tail, and three section arm tail telescopic arm pulley 124 is connected fourth section arm 114 through being connected with four section arm telescopic arm rope 125, three section arm tail six section arm telescopic arm pulley 126 is set up in third section arm 113 tail, six section arm telescopic arm piece 127 is set up in third section arm 113, and six section arm telescopic arm piece 127 includes three section arm tail six section arm telescopic arm hinge point 1271, six section arm arm head pulley 1272 and six section arm telescopic arm rope 1273, three section arm tail six section arm telescopic arm hinge point 1271 is set up in third section arm 113, six section arm arm head pulley 1272 is set up in sixth section arm 116 top, and six section arm telescopic arm rope 1273 one end is set up in three section arm tail six section arm telescopic arm hinge point 1271 of telescopic cylinder 1211 one side and is connected six section arm arm head pulley 1272 through around cylinder head telescopic arm pulley 1213 and three section arm tail telescopic arm pulley 124, again through six section arm arm head pulley 1272 and reach telescopic cylinder 1211 other side three section arm tail telescopic arm pulley 124 and cylinder head telescopic arm pulley 1213 around, finally connect to three section arm tail six section arm telescopic arm hinge point 1271.When the telescopic arm is retracted, the telescopic oil cylinder 1211 drives the second arm 112 to retract through the telescopic oil cylinder cylinder hinge point 1212, the second arm 112 retracts to drive the third arm 113 to retract through the second arm tail telescopic arm pulley 122 and the third arm telescopic arm rope 123, the third arm 113 retracts to drive the fourth arm 114 to retract through the third arm tail telescopic arm pulley 124 and the fourth arm telescopic arm rope 125, the third arm 113 retracts to drive the sixth arm 116 to retract through the third arm tail six arm telescopic arm pulley 126 and the sixth arm telescopic arm rope 1273, and the sixth arm 116 retracts to drive the fifth arm 115 to retract, compared with the fifth arm 115 and the sixth arm 116, the telescopic arms are realized by the fifth telescopic arm rope, the sixth telescopic arm rope, the fifth arm tail telescopic arm pulley and the sixth arm tail telescopic arm pulley, the telescopic arm assembly can reduce the weight and height of the whole aerial vehicle, avoid the risk of overweight and overheight, reduce the cross-sectional height of the movable arm 110 and improve safety.

[0034] Further, the telescopic arm assembly comprises a second arm head pulley 131, a third arm head pulley 133, a fourth arm head pulley 135 and a fifth arm head pulley 137, the second arm head pulley 131 is installed at the top end of the second arm 112, the second arm head pulley 131 is connected with a third arm telescopic arm rope 132, the third arm telescopic arm rope 132 is connected with the third arm 113, the third arm head pulley 133 is installed at the top end of the third arm 113, the third arm head pulley 133 is connected with a fourth arm telescopic arm rope 134, the fourth arm telescopic arm rope 134 is connected with the fourth arm 114, the fourth arm head pulley 135 is installed at the top end of the fourth arm 114, the fourth arm head pulley 135 is connected with a fifth arm telescopic arm rope 136, the fifth arm telescopic arm rope 136 is connected with the fifth arm 115, the fifth arm head pulley 137 is installed at the top end of the fifth arm 115, the fifth arm head pulley 137 is connected with a sixth arm telescopic arm rope 138, and the sixth arm telescopic arm rope 138 is connected with the sixth arm 116; when the telescopic arm is retracted, the telescopic oil cylinder 1211 drives the second arm 112 to retract through the telescopic oil cylinder cylinder hinge point 1212, the second arm 112 retracts to drive the third arm 113 to retract through the second arm tail telescopic arm pulley 122 and the third arm telescopic arm rope 123, the third arm 113 retracts to drive the fourth arm 114 to retract through the third arm tail telescopic arm pulley 124 and the fourth arm telescopic arm rope 125, the third arm 113 retracts to drive the sixth arm 116 to retract through the third arm tail six arm telescopic arm pulley 126 and the sixth arm telescopic arm rope 1273, and the sixth arm 116 retracts to drive the fifth arm 115 to retract, compared with the fifth arm 115 and the sixth arm 116, the telescopic arms are realized by the fifth telescopic arm rope, the sixth telescopic arm rope, the fifth arm tail telescopic arm pulley and the sixth arm tail telescopic arm pulley, the telescopic arm assembly can reduce the weight and height of the whole aerial vehicle, avoid the risk of overweight and overheight, reduce the cross-sectional height of the movable arm 110 and improve safety.

[0035] The working principle of the utility model is as follows:

[0036] The telescopic mechanism of the six-section arm of the aerial work platform of the embodiment is used in the extension arm work, the telescopic oil cylinder 1211 drives the second section arm 112 to extend through the telescopic oil cylinder cylinder hinge point 1212, the second section arm 112 extends through the second section arm head pulley 131 and the third section arm extension arm rope 132 to drive the third section arm 113 to extend, the third section arm 113 extends through the third section arm head pulley 133 and the fourth section arm extension arm rope 134 to drive the fourth section arm 114 to extend, the fourth section arm 114 extends through the fourth section arm head pulley 135 and the fifth section arm extension arm rope 136 to drive the fifth section arm 115 to extend, and the fifth section arm 115 extends through the fifth section arm head pulley 137 and the sixth section arm extension arm rope 138 to drive the sixth section arm 116 to extend; in the telescopic arm work, the telescopic oil cylinder 1211 drives the second section arm 112 to retract through the telescopic oil cylinder cylinder hinge point 1212, the second section arm 112 retracts through the second section arm tail telescopic arm pulley 122 and the third section arm telescopic arm rope 123 to drive the third section arm 113 to retract, the third section arm 113 retracts through the third section arm tail telescopic arm pulley 124 and the fourth section arm telescopic arm rope 125 to drive the fourth section arm 114 to retract, the third section arm 113 retracts through the third section arm tail sixth section arm telescopic arm pulley 126 and the sixth section arm telescopic arm rope 1273 to drive the sixth section arm 116 to retract, and the fifth section arm 115 retracts when the sixth section arm 116 retracts; compared with the fifth section arm 115 and the sixth section arm 116, the telescopic arm assembly can reduce the weight and height of the whole aerial work platform, avoid the risk of overweight and overheight, reduce the cross-sectional height of the movable arm 110, and improve the safety.

[0037] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A six-section arm retraction mechanism for an aerial platform, comprising a movable arm (110), characterized in that: The active arm (110) is provided with an arm stretching assembly and an arm shortening assembly, the active arm (110) comprises a first section arm (111), a second section arm (112), a third section arm (113), a fourth section arm (114), a fifth section arm (115) and a sixth section arm (116), the arm shortening assembly comprises: a transmission member (121) connected with the active arm (110); a two-section arm tail arm shortening pulley (122) arranged at the tail of the second section arm (112), the two-section arm tail arm shortening pulley (122) is connected with the third section arm (113) through a three-section arm shortening rope (123); a three-section arm tail arm shortening pulley (124) arranged at the tail of the third section arm (113), the three-section arm tail arm shortening pulley (124) is connected with the fourth section arm (114) through a four-section arm shortening rope (125); a three-section arm tail six-section arm shortening pulley (126) arranged at the tail of the third section arm (113); a six-section arm shortening member (127) arranged at the third section arm (113).

2. The six-section arm retracting mechanism of the aerial work platform truck according to claim 1, characterized in that: The transmission member (121) comprises a telescopic oil cylinder (1211), a telescopic oil cylinder cylinder hinge point (1212) and a cylinder head arm shortening pulley (1213), the telescopic oil cylinder (1211) is arranged at the first section arm (111), the telescopic oil cylinder cylinder hinge point (1212) is arranged at the telescopic oil cylinder (1211), and the cylinder head arm shortening pulley (1213) is arranged at the top of the telescopic oil cylinder (1211).

3. The six-section arm retracting mechanism of the aerial work platform truck according to claim 2, characterized in that: The six-section arm shortening member (127) comprises: a three-section arm tail six-section arm shortening hinge point (1271) arranged at the third section arm (113); a six-section arm head pulley (1272) arranged at the top of the sixth section arm (116); a six-section arm shortening rope (1273) arranged at the three-section arm tail six-section arm shortening hinge point (1271) and connected with the six-section arm head pulley (1272) by passing around the cylinder head arm shortening pulley (1213) and the three-section arm tail arm shortening pulley (124).

4. The six-section arm retracting mechanism of the aerial work platform according to claim 1, characterized in that: The arm stretching assembly comprises: a two-section arm head pulley (131) arranged at the top end of the second section arm (112), the two-section arm head pulley (131) is connected with a three-section arm stretching rope (132), and the three-section arm stretching rope (132) is connected with the third section arm (113); a three-section arm head pulley (133) arranged at the top end of the third section arm (113), the three-section arm head pulley (133) is connected with a four-section arm stretching rope (134), and the four-section arm stretching rope (134) is connected with the fourth section arm (114); A four-section arm head pulley (135) is arranged at the top end of the fourth-section arm (114), and a five-section arm extension rope (136) is connected to the four-section arm head pulley (135), and the five-section arm extension rope (136) is connected to the fifth-section arm (115); A five-section arm head pulley (137) is arranged at the top end of the fifth-section arm (115), and a six-section arm extension rope (138) is connected to the five-section arm head pulley (137), and the six-section arm extension rope (138) is connected to the sixth-section arm (116).

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