CN210855166U

CN210855166U - Heavy-load bidirectional telescopic fork of mold transfer trolley

Info

Publication number: CN210855166U
Application number: CN201921842286.2U
Authority: CN
Inventors: 朱红光; 王培德; 张立彪; 史军杰
Original assignee: Ningbo Premium Automotive Parts Co ltd
Current assignee: Ningbo Premium Automotive Parts Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-06-26
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses a heavy-duty bidirectional telescopic fork of a mold transfer trolley, which comprises a telescopic arm, wherein the telescopic arm comprises a fixed arm, a transition arm and a sliding arm; the fixed arm, the transition arm and the sliding arm are in multi-stage transmission through a first gear, a first upper rack, a lower rack, a second gear and a second upper rack; the fixed arm, the transition arm and the sliding arm bear weight through the first sliding groove, the lower guide wheel, the second sliding groove and the upper guide wheel. The heavy-duty bidirectional telescopic fork of the mold transfer trolley can smoothly and stably move a heavy mold to the upper side of the mold frame from the upper side of the transfer trolley, and the self weight and the volume are relatively small.

Description

Heavy-load bidirectional telescopic fork of mold transfer trolley

Technical Field

The utility model relates to a technical field is placed in auto parts field auto parts's heavy mould storage, specifically says a two-way flexible fork of heavy load type of mould transfer car (buggy).

Background

In the automobile parts industry, many dies for die-casting automobile parts are heavy dies, the weight of the dies is generally 2.5t to 3t, and some dies even weigh 5 t. When the die is not used, the die needs to be placed on the transfer trolley, moved to the designated position of the die rack of the warehouse, carried from the transfer trolley and placed at the corresponding position of the die rack, and before die casting, the designated die needs to be taken out from the corresponding position of the die rack, carried and placed on the transfer trolley and then transported away.

If the mold is of ordinary weight, the mold can be manually conveyed from the transfer trolley to the mold frame, in order to enhance automation, the transfer trolley can be further provided with a telescopic fork driven by a cylinder or an oil cylinder, the mold is placed on the tray, and the tray is horizontally conveyed by the fork. However, since the dead weight of the die-casting mold in the automobile parts industry is too large, manual carrying is not practical, and the fork driven by the air cylinder obviously cannot bear and carry the mold with the large tonnage, even if a large oil cylinder is used, the requirement on load bearing can be met, the dead weight and the volume of the transfer trolley can be increased, so that the transfer trolley is heavy, occupies a wide area, has high energy consumption and is poor in practicability.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can be with heavy mould from the smooth-going stable removal in transfer car top to mould frame top, and dead weight and the two-way flexible fork of heavy load type of the relatively little mould transfer car of volume.

The utility model provides a technical solution, which provides a heavy-duty bidirectional telescopic fork of a mold transfer trolley, comprising a telescopic arm, wherein the telescopic arm comprises a fixed arm, a transition arm and a sliding arm;

the fixing arm is rotatably provided with a plurality of first gears which are meshed in sequence, wherein at least one first gear is a driving wheel driven by a telescopic motor, other first gears are driven wheels, the fixing arm comprises two first side walls and a bottom wall, a first sliding groove penetrates through the inner surface of each first side wall along the telescopic direction, and a lower rack is fixed on the upper surface of the bottom wall;

the transition arm comprises two side plates and a plurality of connecting shafts for connecting the two side plates, and each connecting shaft is rotatably provided with a second gear meshed with the lower rack; a first upper rack meshed with the first gear is fixed on the lower surface of one side plate in the inner part; the outer surface of each side plate is provided with an upper row of guide wheels and a lower row of guide wheels along the telescopic direction;

the sliding arm consists of two second side walls and a cover plate, a second sliding chute penetrates through the inner surface of each second side wall along the telescopic direction, and a second upper rack meshed with a second gear is fixed on the lower surface of the cover plate;

two rows of upper guide wheels of the transition arm are respectively in sliding fit in the two second sliding grooves of the sliding arm, and two rows of lower guide wheels of the transition arm are respectively in sliding fit in the two first sliding grooves of the fixed arm.

Compared with the prior art, the heavy-load bidirectional telescopic fork of the mold transfer trolley with the structure has the following advantages.

The principle of the extending action of the telescopic arm is as follows: the telescopic motor drives the first gear serving as a driving wheel to positively transmit, so that other first gears are driven to positively transmit, and all the first gears positively transmit to push the first upper rack forward, so that the transition arm extends forwards by a standard stroke d relative to the transfer trolley; when the transition arm extends forwards, the lower part of the second gear of the transition arm is meshed with the lower rack of the fixed arm, so that the second gear can also rotate forwards, and the linear stroke of the forward rotation of the second gear is the standard stroke d of the transition arm; and because the upper part of the second gear is meshed with the second upper rack, when the second gear rotates in the positive direction, the sliding arm is pushed by the second upper rack, so that the sliding arm also extends forwards by a standard stroke d relative to the transition arm, and then the standard stroke d of the transition arm extending forwards relative to the transfer trolley is superposed, and the sliding arm extends forwards by two standard strokes, namely 2d relative to the transfer trolley. And controlling the telescopic motor to enable the standard forward extending stroke d to be half of the length of the telescopic arm, so that the sliding arm can finally extend forward by the length of a complete telescopic arm relative to the transfer trolley. At this time, when the telescopic motor is rotated reversely for the same number of turns, the movable wall is retracted 2d, the transition arm is retracted 1d, and the movable wall, the transition arm, and the fixed arm are overlapped again in the telescopic direction. In a similar way, if the telescopic motor rotates reversely, the sliding arm can extend backwards by the length of one telescopic arm relative to the transfer trolley.

The load condition of the telescopic arm is analyzed emphatically, the weight of the sliding arm and the upper part of the sliding arm is loaded on the transition arm downwards through two rows of upper guide wheels, the load is loaded smoothly and stably by the two rows of guide wheels, the smoothness of the transverse movement of the sliding arm is guaranteed, and the upper guide wheels are clamped in two second sliding grooves in the inner surfaces of two second side walls of the sliding arm to form a U-shaped clamping connection, so that the fork which bears a heavy mold is enabled not to overturn and be unstable on the whole when the sliding arm is completely extended; similarly, the transition arm and the weight on the upper part of the transition arm are also downwards loaded on the fixed arm through the two rows of lower guide wheels, so that the fork is further ensured to be stably stretched under high load, the movement is smooth, and the stretching process is not overturned.

In conclusion, the telescopic arm loaded with the heavy-duty mold extends forwards and backwards in two directions, and the extending distance is equal to the length of the telescopic arm, so that the heavy-duty mold is moved and conveyed from the upper part of the transfer trolley to the upper part of the mold frame; the pallet fork has heavy load and can bear 2.5t to 3t, even 5t of heavy molds; the telescopic process is smooth and stable, and the whole fork can not overturn when the sliding arm is completely extended; moreover, compared with the traditional heavy and huge hydraulic cylinder type pallet fork, the pallet fork has the advantages of compact structure, small volume, light dead weight and light and smooth movement.

Preferably, the number of the telescopic arms is two, the telescopic motors are positioned between the two telescopic arms, the output shafts of the telescopic motors extend into a reduction gearbox, the output shaft of the reduction gearbox is a bidirectional shaft, and two ends of the bidirectional shaft respectively extend into the fixed arms at two sides and are fixed with the two first gears; like this, a flexible motor drives two flexible arms simultaneously, and can guarantee that two flexible arms are flexible in step, ensures the atress equilibrium, and stability when having improved the mould and removing, and promoted this fork truck's whole load one time.

Preferably, a connecting frame is arranged between the two telescopic arms and comprises a top metal plate and a front bottom connecting plate and a rear bottom connecting plate, two ends of each bottom connecting plate are respectively in threaded connection with the two fixing arms, the middle part of the top metal plate is provided with an upper arch centering plate, the front end and the rear end of the top metal plate are provided with L-shaped plates, the two L-shaped plates are respectively in threaded connection with the front bottom connecting plate and the rear bottom connecting plate, and the shell of the reduction gearbox is in; like this, two flexible arms firm in connection, and each part overall arrangement is compact reasonable, the assembly of being convenient for, and has reduced fork truck's whole volume.

As a further preference, a gear box is fixed on the lower surface of the bottom wall of the fixing arm, the main body part of the first gear is installed in the gear box, a long hole parallel to the lower rack penetrates through the bottom wall of the fixing arm, and the upper parts of all the first gears extend out of the gear box through the long holes so as to realize meshing with the first upper rack; due to the design, a proper mounting position is provided for the first gear, the first gear and the lower rack are ensured to be staggered, and the multi-stage transmission parts of the forklift are ensured to operate independently and do not interfere with each other.

Drawings

Fig. 1 is a schematic structural view of a heavy-duty bidirectional telescopic fork of the mold transfer trolley of the utility model.

Fig. 2 is the structure schematic diagram of the heavy-duty bidirectional telescopic fork of the mold transfer trolley after the top metal plate is removed.

Fig. 3 is the schematic view of the explosion structure of the heavy-duty bidirectional telescopic fork of the mold transfer trolley of the utility model.

Fig. 4 is a schematic view of the structure of fig. 3 after being deflected by a certain angle.

Fig. 5 is a schematic view of a half-section overlooking structure of the heavy-duty bidirectional telescopic fork of the mold transfer trolley of the present invention, which is cut open from the cross section of the first gear.

Fig. 6 is a schematic view of a half-section overlooking structure of the heavy-duty bidirectional telescopic fork of the mold transfer vehicle of the present invention, which is cut open from the cross section of the second gear.

Shown in the figure are 1, a telescopic arm, 2, a fixed arm, 2.1, a first side wall, 2.2, a bottom wall, 3, a transition arm, 3.1, an additional connecting rod, 3.2, a side plate, 3.3, a connecting shaft, 4, a sliding arm, 4.1, a second side wall, 4.2, a cover plate, 5, a first gear, 6, a telescopic motor, 7, a first sliding chute, 8, a lower rack, 9, a second gear, 10, a first upper rack, 11, a second sliding chute, 12, a second upper rack, 13, an upper guide wheel, 14, a lower guide wheel, 15, a reduction box, 16, a bidirectional shaft, 17, a top metal plate, 17.1, an upper arch plate, 17.2, an L-shaped plate, 18, a bottom connecting plate, 19, a gear box, 20 and a long hole.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

As shown in figures 1-6, the heavy-duty bidirectional telescopic fork of the mold transfer trolley of the utility model comprises two telescopic arms 1 with the same structure and a connecting frame for connecting the two telescopic arms 1. Each telescopic arm 1 comprises a fixed arm 2, a transition arm 3 and a sliding arm 4.

Here, the concept of the direction is unified, and the direction in which the telescopic arm 1 extends and contracts is referred to as the front-rear direction, and the direction perpendicular to the telescopic arm 1 is referred to as the left-right direction.

The fixed arm 2 comprises two first side walls 2.1 and a bottom wall 2.2, and the two first side walls 2.1 are screwed on the upper surface of the bottom wall 2.2 and are respectively arranged at the left side and the right side of the bottom wall.

The connecting frame comprises a top metal plate 17 and a front bottom connecting plate 18 and a rear bottom connecting plate 18, wherein two ends of the front bottom connecting plate 18 are respectively in threaded connection with the front ends of the bottom walls 2.2 of the two fixing arms 2, and two ends of the rear bottom connecting plate 18 are respectively in threaded connection with the rear ends of the bottom walls 2.2 of the two fixing arms 2; the two bottom walls 2.2 and the two bottom webs 18 form the frame structure of the fork base. The middle part of the top metal plate 17 is provided with an upper arch 17.1, the front end and the rear end are provided with L-shaped plates 17.2, the two L-shaped plates 17.2 are respectively in threaded connection with a front bottom connecting plate 18 and a rear bottom connecting plate 18, and the lower surface of the upper arch 17.1 is in threaded connection with a reduction gearbox 15. A telescopic motor 6 is further arranged between the two telescopic arms 1, an output shaft of the telescopic motor 6 extends into a reduction gearbox 15, an output shaft of the reduction gearbox 15 is a bidirectional shaft 16, and two ends of the bidirectional shaft 16 respectively extend into the two fixed arms 2 on the left side and the right side.

A plurality of first gears 5 are rotatably mounted in each fixed arm 2, wherein at least one first gear 5 is a driving wheel driven by a telescopic motor 6 and the other first gears 5 are driven wheels. In this embodiment, three first gears 5 are disposed in each telescopic arm 1, specifically, a gear box 19 is fixed on the lower surface of the bottom wall 2.2 of each fixed arm 2, the three first gears 5 are rotatably mounted in a box of the gear box 19, the end of the bidirectional shaft 16 extends into the gear box 19 of the fixed arm 2 and is fixed with the first gear 5 serving as a driving wheel, the other two first gears 5 are sequentially in mesh transmission with the driving wheel, and the three first gears 5 are located in the middle of the length of the fixed arm 2 in the telescopic direction. The bottom wall 2.2 of the fixed arm 2 also serves as a top plate of the gear box 19, a long hole 20 extending in the telescopic direction penetrates through the bottom wall 2.2, the main body parts of the three first gears 5 are accommodated in the box body of the gear box 19, and the upper parts of the three first gears 5 extend out of the gear box 19 through the long hole 20.

A first sliding chute 7 penetrates through the inner surface of each first side wall 2.1 of the fixed arm 2 along the telescopic direction, and a lower rack 8 extending along the telescopic direction is fixed on the upper surface of the bottom wall 2.2; the lower rack 8 and the part of the first gear 5 extending out of the gear box 19 through the long hole 20 are staggered left and right.

The transition arm 3 comprises two side plates 3.2 and a plurality of connecting shafts 3.3 for connecting the two side plates 3.2, in the embodiment, three connecting shafts 3.3 are provided, and each connecting shaft 3.3 is rotatably provided with a second gear 9 meshed with the lower rack 8; the three second gears 9 are meshed in sequence, and the three second gears 9 are positioned in the middle of the length of the transition arm 3 in the telescopic direction; naturally, an additional connecting rod 3.1 for reinforcement is also arranged between the two side plates 3.2. A first upper rack 10 meshed with the first gear 5 is fixed on the lower surface of one side plate 3.2; the outer surface of each side plate 3.2 is provided with an upper row of guide wheels and a lower row of guide wheels along the telescopic direction. Specifically, a row of upper guide wheels 13 and a row of lower guide wheels 14 are arranged on the left surface of the left side plate 3.2 in the telescopic direction, and a row of upper guide wheels 13 and a row of lower guide wheels 14 are arranged on the right surface of the right side plate 3.2 in the telescopic direction.

The sliding arm 4 is composed of two second side walls 4.1 and a cover plate 4.2, and the two second side walls 4.1 are respectively screwed on the lower surface of the cover plate 4.2 and are separated on the left side and the right side of the cover plate. A second sliding chute 11 penetrates through the inner surface of each second side wall 4.1 along the telescopic direction, and a second upper rack 12 meshed with the second gear 9 is fixed on the lower surface of the cover plate 4.2;

two rows of upper guide wheels 13 of the transition arm 3 are respectively in sliding fit in the two second sliding grooves 11 of the sliding arm 4, and two rows of lower guide wheels 14 of the transition arm 3 are respectively in sliding fit in the two first sliding grooves 7 of the fixed arm 2.

Claims

1. The utility model provides a two-way flexible fork of heavy load type of mould transfer car (buggy), its characterized in that: the telescopic arm comprises a telescopic arm (1), wherein the telescopic arm (1) comprises a fixed arm (2), a transition arm (3) and a sliding arm (4);

the fixing arm (2) is rotatably provided with a plurality of first gears (5) which are meshed in sequence, wherein at least one first gear (5) is a driving wheel driven by a telescopic motor (6) and other first gears (5) are driven wheels, the fixing arm (2) comprises two first side walls (2.1) and a bottom wall (2.2), a first sliding chute (7) penetrates through the inner surface of each first side wall (2.1) along the telescopic direction, and a lower rack (8) is fixed on the upper surface of the bottom wall (2.2);

the transition arm (3) comprises two side plates (3.2) and a plurality of connecting shafts (3.3) used for connecting the two side plates (3.2), and each connecting shaft (3.3) is rotatably provided with a second gear (9) meshed with the lower rack (8); a first upper rack (10) meshed with the first gear (5) is fixed on the lower surface of one inner side plate (3.2); the outer surface of each side plate (3.2) is provided with an upper row of guide wheels and a lower row of guide wheels in a telescopic direction;

the sliding arm (4) is composed of two second side walls (4.1) and a cover plate (4.2), a second sliding chute (11) penetrates through the inner surface of each second side wall (4.1) along the telescopic direction, and a second upper rack (12) meshed with the second gear (9) is fixed on the lower surface of the cover plate (4.2);

two rows of upper guide wheels (13) of the transition arm (3) are respectively in sliding fit in the two second sliding grooves (11) of the sliding arm (4), and two rows of lower guide wheels (14) of the transition arm (3) are respectively in sliding fit in the two first sliding grooves (7) of the fixed arm (2).

2. The heavy-duty type bidirectional telescopic fork of a mold transfer vehicle according to claim 1, wherein: the number of the telescopic arms (1) is two, the telescopic motors (6) are located between the two telescopic arms (1), the output shafts of the telescopic motors (6) extend into a reduction gearbox (15), the output shafts of the reduction gearbox (15) are bidirectional shafts (16), and two ends of each bidirectional shaft (16) respectively extend into the fixed arms (2) on two sides and are fixed with the two first gears (5).

3. The heavy-duty type bidirectional telescopic fork of a mold transfer vehicle according to claim 2, wherein: be equipped with the link between two flexible arms (1), the link includes a top panel beating (17) and two end connecting plate (18) around with, connecting plate (18) both ends are respectively with two fixed arm (2) spiro union at every end, top panel beating (17) middle part is last arch bar (17.1) and the front and back end is L shaped plate (17.2), two L shaped plate (17.2) respectively with two end connecting plate (18) spiro unions around with, reducing gear box (15) casing spiro union is at last arch bar (17.1) lower surface.

4. The heavy-duty type bidirectional telescopic fork of a mold transfer vehicle according to claim 1, wherein: a gear box (19) is fixed on the lower surface of the bottom wall (2.2) of the fixing arm (2), the main body of the first gear (5) is installed in the gear box (19), a long hole (20) parallel to the lower rack (8) penetrates through the bottom wall (2.2) of the fixing arm (2), and the upper portions of all the first gears (5) extend out of the gear box (19) through the long holes (20) so as to be meshed with the first upper rack (10).