CN2561766Y - Operation platform rotating device of high altitude operation car - Google Patents

Abstract

The utility model relates to a working platform rotary device of an overhead working truck, the bottom part of a working platform (1) is fixed with a front hinge axis (2) and a back hinge axis (7), the back hinge axis (7) can form the rotatable movable connection with a support seat (5) by a bearing, the support seat (5) and a working arm (6) are relatively fixed in a plane which is parallel with the ground, a support seat short arm (13) is fixedly arranged on the support seat (5), a hinge base (4) is fixedly arranged on the support seat short arm (13), one end of an oil cylinder (3) is articulated with the front hinge axis (2), the other end is articulated with the hinge base (4), the oil cylinder (3) and the support seat short arm (13) are not in the same straight line always. The working platform rotary device of the utility model can drive the working platform for rotary around the back hinge axis (7) by the extension and contraction of the oil cylinder (3).

Description

A kind of aerial platform workplatform turning gear

One, technical field

The utility model relates to aerial platform.

Two, background technology

Aerial platform is delivered to workplatform in the air by the lifting of working arm, and the staff carries out high-altitude application on workplatform.Usually can only in perpendicular to ground-surface plane, rotate between the workplatform of aerial platform and the working arm, guarantee that the workplatform base plate is parallel to the ground all the time, make staff's energy normal operation, can't in being parallel to ground-surface plane, rotate (as shown in Figure 1) between workplatform and the working arm around the Z axle.Like this when carrying out aerial work, if two control position close together, stretching, extension by working arm can make workplatform arrive control position, but because workplatform can not wind perpendicular to ground-surface axle rotation, tend to cause and have an angle between workplatform and the driving surface, cause work inconvenience, influence the serviceability of aerial platform.

Three, summary of the invention

The purpose of this utility model is to provide a kind of aerial platform workplatform turning gear.

The technical solution of the utility model is as follows:

A kind of aerial platform workplatform turning gear, it is included in the workplatform bottom and fixes a preceding hinge and a back hinge, back hinge passes through head bearing, top chock, step, form rotating flexible connection between lower bearing and the supporting seat, supporting seat and working arm be relative fixed in plane parallel to the ground, can not rotate, be fixed with the supporting seat galianconism on the supporting seat, be fixed with free bearing on the supporting seat galianconism, one end of oil cylinder is hinged with the preceding hinge that is fixed on the workplatform bottom, the other end of oil cylinder is hinged with the free bearing that is fixed on the supporting seat galianconism, all the time form an angle between oil cylinder and supporting seat galianconism, out-of-line.

Adopt aerial platform workplatform turning gear of the present utility model, when above-mentioned oil cylinder stretches out or bounces back, owing to can't rotate between supporting seat and the working arm, and form an angle between oil cylinder and supporting seat galianconism, therefore the oil cylinder platform that just pushes the work forward turns round around the back hinge, the stroke of control oil cylinder just can be regulated the degreeof turn of workplatform, makes workplatform be more suitable for the needs of driving surface, makes staff's more convenient operation.

Four, description of drawings

Fig. 1 is the scheme drawing of existing aerial platform, and workplatform can not rotate around the Z axle;

Fig. 2 a is the scheme drawing of aerial platform of the present utility model;

Fig. 2 b is the A-A directional profile scheme drawing of Fig. 2;

Fig. 2 c is that the K of workplatform of Fig. 2 is to view.Five, the specific embodiment

Embodiment:

A kind of aerial platform workplatform turning gear, as shown in Figure 2, it is a hinge 2 and a back hinge 7 before the bottom of workplatform 1 fixes, back hinge 7 is by head bearing 8, top chock 9, step 10, form rotating flexible connection (shown in Fig. 2 b) between lower bearing 11 and the supporting seat 5, supporting seat 5 and working arm 6 relative fixed in plane parallel to the ground can not be rotated.Be fixed with supporting seat galianconism 13 on the supporting seat 5, be fixed with free bearing 4 on the supporting seat galianconism 13, one end of oil cylinder 3 is hinged with the preceding hinge 2 that is fixed on workplatform 1 bottom, the other end is hinged with the free bearing 4 that is fixed on the supporting seat galianconism 1,13 of oil cylinder 3 and supporting seat galianconism form an angle all the time, and be out-of-line.When oil cylinder 3 was flexible, owing to can't horizontally rotate between supporting seat 5 and the working arm 6, and oil cylinder 3 formed an angle with 13 of supporting seat galianconism, so oil cylinder 3 platform 1 that just pushes the work forward, and turned round around back hinge 7.Shown in Fig. 2 c.

Claims (1)

1. aerial platform workplatform turning gear, it is characterized in that it is included in workplatform (1) bottom and fixes a preceding hinge (2) and a back hinge (7), back hinge (7) is by head bearing (8), top chock (9), step (10), form rotating flexible connection between lower bearing (11) and the supporting seat (5), supporting seat (5) and working arm (6) relative fixed in plane parallel to the ground, can not rotate, be fixed with supporting seat galianconism (13) on the supporting seat (5), be fixed with free bearing (4) on the supporting seat galianconism (13), one end of oil cylinder (3) and preceding hinge (2) are hinged, the other end of oil cylinder (3) and free bearing (4) are hinged, and oil cylinder (3) is out-of-line all the time with supporting seat galianconism (13).

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