CN214057521U - Heavy-load type conveying trolley - Google Patents

Abstract

The utility model belongs to the technical field of conveying equipment, in particular to a heavy-duty conveying trolley, which comprises a frame, a travelling wheel mechanism, a rotary driving mechanism and a rotary table, wherein a central revolving body is arranged on the frame, and the top of the central revolving body is connected with a rotating shaft of the rotary table by utilizing a self-aligning bearing; the travelling wheel mechanism is used for driving the frame to reciprocate; the rotary driving mechanism is arranged on the frame and comprises a motor, a speed reducer and a rotary driving gear, the motor is in transmission connection with the speed reducer, the rotary driving gear is arranged on an output shaft of the speed reducer, and the rotary driving gear is meshed with a gear ring arranged at the bottom of the rotary table. The utility model has small occupied area; the load of the vehicle body is obviously increased and is not easy to deform; the service life of the conveying bearing is obviously prolonged; the conveying driving is stable and the deviation is avoided; the rotating shaft and the bearing are not loaded (or the load is small); the rotary table is not easy to deform; the rotary driving power is transited through the gear, and the deformation of the rotary table within a certain range can be absorbed.

Description

Heavy-load type conveying trolley

Technical Field

The utility model belongs to the technical field of conveying equipment, concretely relates to heavy load type conveying trolley.

Background

In the prior art, a trolley for conveying shot blasting machines or other large-sized workpieces is welded into a trolley body by profile steel, the lower part of the trolley body is provided with a common bearing with a seat and a travelling wheel, and the purpose of reciprocating conveying is achieved by a hoisting mechanism.

Meanwhile, the rotary table center revolving body of the existing trolley adopts a plurality of bearings, so that the revolving shaft is rigidly vertical to the rotary table, and the rotary table is driven by a chain wheel. In the mode, when a large workpiece is loaded and unloaded or is subjected to external acting force in work, the load of the central shaft and the bearing is multiplied, and the central shaft and the bearing are easy to damage; particularly, when the workpiece is irregular and heavy, and the center of gravity is deviated, the stress of the rotary table is uneven, the deformation of the rotary table is easily caused, and the rotary driving fault is caused.

Disclosure of Invention

The utility model aims at solving the above problem, providing a heavy load type conveying trolley, automobile body intensity is big, and is longe-lived.

According to the technical scheme of the utility model, the heavy-duty type conveying trolley comprises a frame, a travelling wheel mechanism, a rotary driving mechanism and a rotary table, wherein a central revolving body is arranged on the frame, and the top of the central revolving body is connected with a rotating shaft of the rotary table by utilizing a self-aligning bearing; the travelling wheel mechanisms are symmetrically arranged on two sides of the frame and are used for driving the frame to reciprocate; the rotary driving mechanism is installed on the frame and comprises a motor, a speed reducer and a rotary driving gear, a motor belt pulley is arranged on a rotating shaft of the motor, a speed reducer belt pulley is arranged on an input shaft of the speed reducer and is connected with the motor belt pulley in a belt transmission mode, the rotary driving gear is installed on an output shaft of the speed reducer, and the rotary driving gear is meshed with a gear ring arranged at the bottom of the rotary table.

Furthermore, the central revolving body comprises a bottom plate and a revolving shaft, the upper end of the revolving shaft extends into the mounting cavity of the gear ring and is provided with a cavity for mounting the self-aligning bearing, and the top end of the cavity is provided with a gland.

Furthermore, a partition plate is arranged in the rotating shaft, and a reinforcing plate is arranged between the rotating shaft and the frame.

Furthermore, a sealing ring is arranged between the gland and the rotating shaft.

Furthermore, a plurality of riding wheels are arranged on the frame and are uniformly distributed along the circumferential direction of the gear ring.

Furthermore, the middle part of the riding wheel is protruded to form an arc surface.

Furthermore, the frame adopts the steel sheet to weld into the case roof beam structure.

Furthermore, the travelling wheel mechanism comprises a speed reducing motor and travelling wheels, a travelling wheel driving gear is arranged on an output shaft of the speed reducing motor, the travelling wheels are mounted on the frame through shafts and comprise driving travelling wheels and driven travelling wheels, and travelling wheel driven gears meshed with the travelling wheel driving gear are arranged on the driving travelling wheels.

Furthermore, the travelling wheels are arranged in box girders at two sides of the frame.

Further, the travelling wheels are steel travelling wheels.

The beneficial effects of the utility model reside in that: the occupied area is small; the load of the vehicle body is obviously increased and is not easy to deform; the service life of the conveying bearing is obviously prolonged; the conveying driving is stable and the deviation is avoided; the center of the rotary table is only provided with 1 self-aligning bearing, the rotary shaft is in a tilting type, and the rotary shaft and the bearing are not loaded (or the load is small); the rotary table is supported by the supporting wheels, so that the supporting wheels are always stressed no matter the workpiece is arranged at any position of the rotary table, and the rotary table is not easy to deform; the rotary driving power is transited through the gear, and the deformation of the rotary table within a certain range can be absorbed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a schematic view of the structure of fig. 2 with the turntable and the ring gear removed.

Description of reference numerals: 1-rotary table, 1.1-rotating shaft, 2-speed reducer belt pulley, 3-rotary driving gear, 4-speed reducer, 5-motor belt pulley, 6-motor, 7-self-aligning bearing, 8-riding wheel, 9-gear ring, 10-frame, 11-center revolving body, 11.1-bottom plate, 11.2-revolving shaft, 11.3-cavity, 11.4-gland, 11.5-clapboard, 11.6-reinforcing plate, 11.7-sealing ring, 12-belt, 13-speed reducer motor, 14-travelling wheel driving gear, 15-travelling wheel, 16-shaft and 17-travelling wheel driven gear.

Detailed Description

The invention will be further described with reference to the following specific embodiments and the accompanying drawings.

As shown in the figure: the heavy-duty conveying trolley comprises a trolley frame 10, a travelling wheel mechanism, a rotary driving mechanism and a rotary table 1. A center revolving body 11 is installed at the center of the frame 10, and the top of the center revolving body 11 is connected with a rotating shaft 1.1 of the turntable 1 by a center-adjusting bearing 7. The traveling wheel mechanisms are symmetrically arranged on two sides of the frame 10 and are used for driving the frame 10 to reciprocate. The rotary driving mechanism is installed on the frame 10, including motor 6, speed reducer 4 and rotary driving gear 3, be equipped with motor pulley 5 in motor 6's the pivot, be equipped with speed reducer belt pulley 2 on speed reducer 4's the input shaft, speed reducer belt pulley 2 utilizes belt 12 transmission with motor pulley 5 to be connected, install rotary driving gear 3 on speed reducer 4's the output shaft, rotary driving gear 3 meshes with the ring gear 9 that sets up in 1 bottom of revolving stage mutually, the revolving stage drive adopts the gear to drive the ring gear, drive power is little, gyration drive power passes through the gear transition simultaneously, can absorb the deformation of revolving stage within the certain range.

Specifically, the central revolving body 11 comprises a bottom plate 11.1 and a revolving shaft 11.2, the upper end of the revolving shaft 11.2 extends into the mounting cavity of the gear ring 9 and is provided with a cavity 11.3 for mounting the self-aligning bearing 7, and the top end of the cavity 11.3 is provided with a gland 11.4; a clapboard 11.5 is arranged in the rotating shaft 11.2, and a reinforcing plate 11.6 is arranged between the rotating shaft 11.2 and the frame 10; a sealing ring 11.7 is arranged between the gland 11.4 and the rotating shaft 1.1, and the structure is safe and reliable.

The frame 10 is provided with a plurality of riding wheels 8, the riding wheels 8 are uniformly distributed along the circumferential direction of the gear ring 9, the riding wheel mounting frame is used for mounting the riding wheels on the frame, the rotary table is supported by the riding wheels, no matter a workpiece is mounted at any place of the rotary table, the riding wheels are always stressed, and the rotary table is not easy to deform; the center of the rotary table is only provided with 1 self-aligning bearing, the rotary shaft is in a tilting type, the rotary shaft and the self-aligning bearing are not loaded or the load is small, in the weight range which can be borne by the rotary table, no matter the weight of a workpiece is heavier or the clamping weight of the workpiece is heavier, all moving parts are not easy to damage, and the service life of the rotary table is long. The middle part of the riding wheel 8 is raised to be a circular arc surface, so that the friction force is greatly reduced.

The frame 10 is welded into a box girder structure by adopting steel plates, and the strength of the vehicle body is high. The travelling wheel mechanism comprises a speed reducing motor 13 and travelling wheels 15, a travelling wheel driving gear 14 is arranged on an output shaft of the speed reducing motor 13, the travelling wheels 15 are installed on the frame 10 through shafts 16, the travelling wheels 15 comprise driving travelling wheels and driven travelling wheels, and travelling wheel driven gears 17 meshed with the travelling wheel driving gear 14 are arranged on the driving travelling wheels. The two sides of the frame 10 are both provided with the speed reducing motors for driving, the conveying is stable through gear transmission, one end of the trolley only needs to be provided with one cable winder, and a large amount of occupied space is saved. The running wheels 12 are installed in the box girders at both sides of the frame 10, reducing the height of the trolley. The travelling wheel 12 is made of steel, and is fixed in the lower box girder through a shaft (heat treatment) after a bearing is placed in the travelling wheel during installation.

Claims (10)

1. The heavy-duty type conveying trolley comprises a trolley frame (10), a travelling wheel mechanism, a rotary driving mechanism and a rotary table (1), and is characterized in that a central revolving body (11) is mounted on the trolley frame (10), and the top of the central revolving body (11) is connected with a rotating shaft (1.1) of the rotary table (1) through a self-aligning bearing (7); the travelling wheel mechanisms are symmetrically arranged on two sides of the frame (10) and are used for driving the frame (10) to reciprocate; rotatory actuating mechanism installs on frame (10), including motor (6), speed reducer (4) and rotary drive gear (3), be equipped with motor pulley (5) in the pivot of motor (6), be equipped with speed reducer belt pulley (2) on the input shaft of speed reducer (4), speed reducer belt pulley (2) utilize belt (12) transmission with motor pulley (5) to be connected, install rotary drive gear (3) on the output shaft of speed reducer (4), rotary drive gear (3) mesh with ring gear (9) that set up in revolving stage (1) bottom.

2. The heavy-duty conveying trolley according to claim 1, wherein the central revolving body (11) comprises a bottom plate (11.1) and a revolving shaft (11.2), the upper end of the revolving shaft (11.2) extends into the mounting cavity of the gear ring (9) and is provided with a cavity (11.3) for mounting the self-aligning bearing (7), and the top end of the cavity (11.3) is provided with a gland (11.4).

3. A heavy duty transport trolley according to claim 2 wherein a partition (11.5) is provided in the pivot shaft (11.2) and a reinforcement plate (11.6) is provided between the pivot shaft (11.2) and the frame (10).

4. The heavy-duty transport trolley according to claim 2, characterized in that a sealing ring (11.7) is provided between the gland (11.4) and the shaft (1.1).

5. The heavy-duty transport trolley according to claim 1, characterized in that said carriage (10) is provided with a plurality of idlers (8), said idlers (8) being uniformly distributed along the circumferential direction of said ring gear (9).

6. The heavy-duty transport trolley according to claim 5, characterized in that the middle of the idler (8) is convex in the shape of a circular arc.

7. A heavy duty transport trolley according to claim 1 wherein the frame (10) is welded to a box girder structure using steel plates.

8. A heavy duty transport trolley according to claim 1 or 7 wherein said travelling wheel mechanism comprises a gear motor (13) and travelling wheels (15), said gear motor (13) having a travelling wheel drive gear (14) on its output shaft, said travelling wheels (15) being mounted on the carriage (10) by means of a shaft (16), the travelling wheels (15) comprising a driving travelling wheel and a driven travelling wheel, said driving travelling wheel being provided with a travelling wheel driven gear (17) which meshes with the travelling wheel drive gear (14).

9. A heavy duty transport trolley as claimed in claim 8 wherein the travelling wheels (15) are mounted in box girders on both sides of the carriage (10).

10. Heavy duty transport trolley according to claim 8, characterized in that the travelling wheels (15) are steel travelling wheels.

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