CN211971534U

CN211971534U - Wheel installation assembly of walking trolley for crane

Info

Publication number: CN211971534U
Application number: CN202020362460.XU
Authority: CN
Inventors: 和西国; 和树贵
Original assignee: Shandong Qilide Heavy Industry Group Co ltd
Current assignee: Shandong Qilide Heavy Industry Group Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-11-20
Anticipated expiration: 2030-03-20

Abstract

The utility model relates to a wheel installation assembly of walking dolly for hoist belongs to hoisting equipment technical field. The wheel mounting assembly comprises a pair of driving wheels and a pair of driven wheels, the driving wheels are connected through a driving wheel bridge and fixedly connected with one end of a frame of the walking trolley, meanwhile, the gear is connected with a motor speed reducer driving device of the walking trolley, and the driven wheels are connected through a driven wheel bridge and connected with the middle of the other end of the frame of the walking trolley through a pin shaft. The utility model discloses a wheel mounting assembly realizes through driven wheel axle and the articulated driven wheel axle that can rotate relatively of dolly frame, makes the track that the walking dolly can the self-adaptation unevenness, and every wheel all can keep with orbital abundant contact, heightens the steadiness of walking dolly.

Description

Wheel installation assembly of walking trolley for crane

Technical Field

The invention relates to the technical field of hoisting equipment, in particular to a wheel mounting assembly of a traveling trolley for a crane.

Background

The hoisting equipment is widely applied to the fields of modern industrial production, building construction and the like, and the production efficiency of the related fields is greatly improved. The bridge crane also plays an important role in the hoisting field as a hoisting device with a large load, wherein the traveling trolley arranged on the track of the traveling beam is mainly used for driving hoisted goods to move left and right. The walking trolley is generally provided with four wheels, two driving wheels and two driven wheels. In the process of installing the tracks of the travelling beams, the two tracks and the two tracks are required to be smooth, so that the four wheels of the travelling trolley can be fully contacted with the tracks in the moving process, and high requirements are provided for the installation of the travelling beams and the tracks. Moreover, in the long-term use process of the crane, the deformation of the travelling beam can be inevitably caused due to the long-term bearing of heavy objects, the fluctuation of the track can be caused, and in the use process of the travelling trolley, the four wheels can not be in full contact with the track at the same time, so that the work of the travelling trolley is influenced.

Disclosure of Invention

In order to solve the problems in the prior art, the invention discloses a wheel mounting assembly of a crane walking trolley, which can adapt to slight fluctuation of a track of a walking beam, and comprises a pair of driving wheels and a pair of driven wheels, wherein the pair of driving wheels are connected through a driving wheel bridge and fixedly connected with one end of a frame of the walking trolley, the driving wheels are connected with a motor reducer driving device of the walking trolley through gears, and the pair of driven wheels are connected through a driven wheel bridge and connected with the middle part of the other end of the frame of the walking trolley through a pin shaft. The driven wheel axle is connected with the frame by a pin shaft, so that the driven wheel axle and the trolley frame can freely and relatively rotate by taking the pin shaft as a center, when the trolley runs over the fluctuation position of the track, the four wheels can always keep sufficient contact with the running track below, the condition that a certain wheel cannot land due to upwarp can not occur, and sufficient running power of the trolley is ensured.

Furthermore, the driving wheel bridge is arranged at the front end of the travelling direction of the frame of the travelling trolley, the two driving wheels are arranged side by side left and right, the driven wheel bridge is arranged at the rear end of the travelling direction of the frame of the travelling trolley, and the two driven wheels are arranged side by side left and right. The design is suitable for the walking trolley with the driving wheel and the driven wheel arranged at the front end and the rear end of the advancing direction.

Furthermore, the driving wheel axle comprises a rotating shaft, two ends of the rotating shaft are respectively connected with a driving wheel, the center of the rotating shaft is provided with a transmission gear box which is connected with an output shaft of a motor reducer driving device, the rotating shafts on two sides of the transmission gear box are respectively provided with two sets of fixing pieces, the fixing pieces are provided with bearings, the rotating shafts penetrate through and are fixed from bearing inner rings of the fixing pieces, and the fixing pieces are connected to the bottom side of the front end of the frame of the walking trolley.

Furthermore, a vertically downward U-shaped groove is formed in the middle of the bottom side of the rear side end of the frame, through pin holes are correspondingly formed in the groove walls of the two sides of the U-shaped groove, a connecting plate is arranged in the middle of the driven wheel axle, the end face of the connecting plate is an arc-shaped face, through mounting holes are formed in the connecting plate, the connecting plate is inserted into the U-shaped groove, and the pin shaft penetrates through the pin holes of the U-shaped groove and the mounting holes of the connecting plate to connect the U-shaped groove and the connecting plate.

Or as another design, the driving wheel bridge is arranged on one side of the travelling direction of the frame of the travelling trolley, the two driving wheels are arranged in front and back, the driven wheel bridge is arranged on the other side of the travelling direction of the frame of the travelling trolley, and the two driven wheels are arranged in front and back. The design is suitable for the walking trolley with the driving wheel and the driven wheel which are designed on two sides in the advancing direction.

Compared with the prior art, the utility model discloses a progress part of crane trolley's wheel installation assembly lies in adopting the mode and the connected to the frame of round pin hub connection with driven wheel axle, like this driven wheel axle and frame alright rotate for the round pin axle is central free relative, make its orbital slight undulation of walking dolly ability self-adaptation, guarantee that the four-wheel of walking dolly fully lands, maintain sufficient power of marcing, keep the dolly stable.

Drawings

FIG. 1 is an inverted schematic view of a first embodiment of a wheel mounting assembly

FIG. 2 is an inverted structural schematic view of a second embodiment of a wheel mounting assembly

In the figure, 1 driving wheel, 2 driven wheels, 3 frames, 11 driving wheel axles, 12 rotating shafts, 13 transmission gear boxes, 14 fixing pieces, 21 driven wheel axles, 211 connecting plates and 31-U-shaped grooves

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the present invention are clearly and completely described, and the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1, the utility model relates to a wheel mounting assembly of a walking trolley for a crane. The wheel mounting assembly comprises a pair of driving wheels 1 and a pair of driven wheels 2. The two driving wheels 1 are respectively arranged at two ends of the driving wheel axle 11, and the two driven wheels 2 are respectively arranged at two ends of the driven wheel axle 21. The driving wheel axle 11 and the driven wheel axle 21 are respectively arranged at the front end and the rear end of the walking direction of the walking trolley.

The driving wheel bridge 11 is installed at the lower side of the front end of the frame 3 of the walking trolley, the driving wheel bridge 11 comprises a rotating shaft 112, a transmission gear box 113 is arranged at the middle part of the rotating shaft 112, the transmission gear box 113 is connected with a power output shaft of a motor reducer driving device of the walking trolley, and the rotating shaft 112 is driven to rotate by the power output shaft, so that driving wheels 1 at two ends are driven to rotate.

The rotating shaft 112 is arranged at the two sides of the transmission gear box 113, the two ends of each part are provided with fixing parts 114, the middle part of each fixing part 114 is fixed with a bearing, the rotating shaft 112 penetrates through the inner ring of the bearing and is fixed, the upper part of each fixing part 114 is an installation part, the upper surface of the installation part is a plane, the four corners of the installation part are respectively provided with bolt holes, and the installation part is connected and fixed with the frame 3 through bolts.

Two ends of the driven wheel axle 21 are respectively rotatably connected with the driven wheels 2, the middle part of the driven wheel axle 21 is upwards and vertically provided with a connecting plate 211, and the end surface of the connecting plate 211 is arc-shaped. A vertically downward U-shaped groove 31 is arranged at the center of the bottom side of the rear end of the frame 3, and pin holes are correspondingly formed in the groove walls on the two sides of the U-shaped groove 31 respectively. The connecting plate 211 is inserted into the U-shaped groove 31, and the pin shaft passes through the pin hole of the U-shaped groove 31 and the mounting hole of the connecting plate 211 to connect and fix the two.

Example 2

As shown in fig. 2, the present invention relates to a second embodiment of a wheel mounting assembly of a walking trolley for a crane. The wheel mounting assembly comprises a pair of driving wheels 1 and a pair of driven wheels 2. The two driving wheels 1 are respectively arranged at two ends of the inner side of the driving wheel axle 11, and the two driven wheels 2 are respectively arranged at two ends of the inner side of the driven wheel axle 21. The driving wheel bridge 11 and the driven wheel bridge 21 are respectively arranged on the left side and the right side of the walking direction of the walking trolley, and the two driving wheels and the two driven wheels are respectively arranged in a front-back mode.

The upper side end of driving wheel axle 11 and the bottom fixed connection of one side of frame 3 of walking dolly, two action wheels 1 are the front and back arrangement and rotate and install both ends around the medial surface of driving wheel axle 11, and action wheel 1 includes inside and outside two-layer wheel body, and outer wheel body 12 contacts with the driving track of hoist, and interior wheel body 13 passes through the power output shaft of the motor reducer drive arrangement of belt connection walking dolly. The inner wheel body 13 can also be designed to be connected with a power output shaft of a motor reducer driving device through a chain or a gear.

The middle part of the driven wheel axle 21 is provided with a mounting hole near the upper part, the center of the bottom side of the other side of the frame 3 is provided with a vertically downward U-shaped groove 31, and the groove walls of the two sides of the U-shaped groove 31 are respectively provided with a pin hole correspondingly. The U-shaped groove 31 downwards clamps the mounting hole of the driven wheel axle 21, the U-shaped groove 31 and the mounting hole of the driven wheel axle 21 are fixedly connected through a pin shaft penetrating through a pin hole of the U-shaped groove 31 and the mounting hole of the driven wheel axle 21, a gap is kept between the bottom surface of the U-shaped groove 31 and the upper end surface of the driven wheel axle 21 after connection, and a space for mutual rotation of the U-shaped groove and the driven wheel axle is reserved. The two driven wheels 2 are rotatably arranged in a front-back manner at the front end and the rear end of the inner side surface of the driven wheel axle 21.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, which is defined by the appended claims and the description of the invention.

Claims

1. The wheel mounting assembly of the walking trolley for the crane is characterized by comprising a pair of driving wheels and a pair of driven wheels, wherein the pair of driving wheels are connected through a driving wheel bridge and fixedly connected with one end of a frame of the walking trolley, the driving wheels are connected with a motor reducer driving device of the walking trolley, and the pair of driven wheels are connected through a driven wheel bridge and connected with the middle of the other end of the frame of the walking trolley through a pin shaft.

2. The wheel mounting assembly of a crane walking trolley according to claim 1, wherein the driving wheel bridge is arranged at the front end of the frame of the walking trolley in the traveling direction, the two driving wheels are arranged side by side left and right, the driven wheel bridge is arranged at the rear end of the frame of the walking trolley in the traveling direction, and the two driven wheels are arranged side by side left and right.

3. The wheel mounting assembly of the crane walking trolley according to claim 2, wherein the driving wheel bridge comprises a rotating shaft, two ends of the rotating shaft are respectively connected with a driving wheel, a transmission gear box is arranged at the center of the rotating shaft and connected with an output shaft of the motor reducer driving device, two sets of fixing parts are respectively arranged on the rotating shaft at two sides of the transmission gear box, the fixing parts are provided with bearings, the rotating shaft penetrates through and is fixed through inner rings of the bearings of the fixing parts, and the fixing parts are connected to the bottom side of the front end of the frame of the walking trolley.

4. The wheel mounting assembly of the crane walking trolley according to claim 3, wherein a vertically downward U-shaped groove is formed in the middle of the bottom side of the rear end of the frame, pin holes are correspondingly formed in the two side walls of the U-shaped groove, a connecting plate is arranged in the middle of the driven wheel axle, the end face of the connecting plate is an arc-shaped surface, mounting holes are formed in the connecting plate, the connecting plate is inserted into the U-shaped groove, and the pin shaft penetrates through the pin holes of the U-shaped groove and the mounting holes of the connecting plate to connect the U-shaped groove and the connecting plate.

5. The wheel mounting assembly of a crane walking trolley according to claim 1, wherein the driving wheel bridge is arranged on one side of the travelling direction of the trolley frame, the two driving wheels are arranged in a front-back manner, the driven wheel bridge is arranged on the other side of the travelling direction of the trolley frame, and the two driven wheels are arranged in a front-back manner.