Pallet fork mechanism for truck-mounted forklift

Abstract

The utility model relates to the technical field of forklifts, and discloses a pallet fork mechanism for a truck-mounted forklift, which comprises a rack, a fixed lug is fixed on the rack, an upper fixed block is fixed above the front surface of the rack, a transverse screw rod is rotatably arranged on the upper fixed block, a transverse bevel gear is fixed at one end of the inner side of the transverse screw rod, and a transverse bevel gear is fixed at the other end of the inner side of the transverse screw rod. A three-head support is fixed to the machine frame, a driving bevel gear is rotationally arranged between the two sets of transverse bevel gears, a driving shaft is fixed to the driving bevel gear, a screw sleeve is in threaded connection with a transverse lead screw, a lower fixing block is fixed to the lower portion of the front face of the machine frame, a sliding rail is fixed to the lower fixing block, a sliding sleeve is arranged on the sliding rail in a sliding mode, and the lower fixing block is fixed to the lower portion of the front face of the machine frame. A linkage frame is fixed between the sliding sleeve and the screw sleeve, and a pallet fork is fixed to the sliding sleeve. According to the pallet fork mechanism for the truck-mounted forklift, cargoes can be forked off the ground through the two groups of pallet forks, the cargoes forked off the ground can be adjusted through the two groups of pallet forks, and the cargoes are corrected for subsequent stacking.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fork truck, concretely to a fork mechanism for truck-mounted fork truck. BACKGROUND

[0002] The fork truck is an industrial handling vehicle, refers to all kinds of wheeled handling vehicles for loading and unloading, stacking and short-distance transporting of palletized goods, commonly used for transporting large objects in warehouse, usually using fuel engine or battery driving.

[0003] The patent with the application number CN202321193715.4 discloses a fork mechanism for truck-mounted fork truck and truck-mounted fork truck, the fork mechanism comprises a fork frame, a bearing track, a lead screw and a fork, the fork frame is fixedly arranged on the lifting frame of the truck-mounted fork truck, the bearing track is horizontally fixed at the front of the fork frame, the lead screw is parallel to the bearing track and is rotatably arranged at the front of the fork frame, at least one sliding block is threadedly connected to the lead screw, the fork is slidably connected to the bearing track, a hinge hole is formed on one of the fork and the sliding block, and a hinge shaft is formed on or connected to the other one of the fork and the sliding block and is hinged to the hinge hole, and the sectional area of the hinge hole is larger than that of the hinge shaft.

[0004] The above patent structure is used by two groups of forks to carry goods, but when the two groups of forks are inserted to take the goods away from the ground, it is inconvenient to stack the goods regularly when the goods are offset on the two groups of forks, so the goods can only be placed on the ground again, and the position of the fork truck is continuously adjusted to fork the goods from the front, which is inconvenient to adjust the goods after forking, time-consuming and laborious, and reduces the working efficiency of the fork truck. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a fork mechanism for truck-mounted fork truck, which solves the problem that it is inconvenient to adjust the forked goods after the fork truck uses the fork to fork the goods away from the ground.

[0007] (II) Technical scheme

[0008] In order to realize the above-mentioned forklift in use forked goods fork off the ground, the purpose of adjusting the forked goods, the utility model provides the following technical scheme: a fork mechanism for truck-mounted forklift, including frame, the frame is fixed with the fixed lug, the upper surface of the frame is fixed with the upper fixed block, the upper fixed block is provided with horizontal screw rod, one end of the inside of horizontal screw rod is fixed with horizontal bevel gear, the frame is fixed with three head support, two groups of horizontal bevel gear is provided with driving bevel gear, the driving bevel gear is fixed with driving shaft, the horizontal screw rod is fixed with the sleeve of screw, the lower surface of the frame is fixed with the lower fixed block, the lower fixed block is fixed with slide rail, the slide rail is slidably provided with the sleeve, the sleeve is fixed with linkage frame between the sleeve, the sleeve is fixed with fork on the slide rail.

[0009] The inside of the fork is provided with an inner groove, one side of the inner groove is provided with a first reversible motor, the other side of the inner groove is provided with a second reversible motor, the output end of the first reversible motor is fixed with a longitudinal screw rod, the output end of the second reversible motor is fixed with a spline telescopic shaft, the inside of the inner groove on one side of the first reversible motor is slidably provided with a rectangular slide block, the rectangular slide block is rotatably provided with a pin sleeve, the pin sleeve is rotatably provided with a lever, the end surface of the spline telescopic shaft is fixed with an adjusting bevel gear, the side surface of the lever is fixed with a driven bevel gear, and a right-angle frame is arranged between the pin sleeve and the adjusting bevel gear.

[0010] Preferably, one end of the right-angle frame is rotatably connected with the pin sleeve, and the other end of the right-angle frame is rotatably connected with the adjusting bevel gear.

[0011] Preferably, the adjusting bevel gear is fixedly connected with the spline telescopic shaft, the driven bevel gear is fixedly connected with the lever, and the adjusting bevel gear is engaged with the driven bevel gear.

[0012] Preferably, the rectangular slide block is slidably connected with the inner groove, the longitudinal screw rod penetrates through the rectangular slide block and is threadedly connected with the rectangular slide block, and one end of the longitudinal screw rod away from the first reversible motor is rotatably connected with the inner wall of the inner groove.

[0013] Preferably, the fork is slidably connected with the slide rail through the sleeve, and the upper and lower ends of the linkage frame are fixedly connected with the sleeve and the slide, respectively.

[0014] Preferably, the horizontal screw rod penetrates through the sleeve and is threadedly connected with the sleeve, and the horizontal screw rods and the sleeve on both sides are symmetrically arranged.

[0015] Preferably, the top end of the three head support is fixedly connected with the frame, and the two ends of the three head support are rotatably connected with the horizontal bevel gears on both sides.

[0016] Preferably, the driving bevel gear is engaged with the horizontal bevel gears on both sides, a support frame is fixedly arranged on the frame, and the driving shaft is rotatably connected with the support frame.

[0017] Compared with the prior art, the utility model provides a fork mechanism for truck-mounted forklift, has the following beneficial effects:

[0018] 1、 this fork mechanism for truck-mounted forforklift, drive shaft passes through the meshing of drive bevel gear and both sides horizontal bevel gear, can drive two groups horizontal lead screw rotation, when two groups horizontal lead screw rotation, can drive two groups silk cover each other close or far away, sliding sleeve moves on slide rail at this moment, and silk cover passes through linkage frame and sliding sleeve, can drive two groups fork each other close or far away, so can according to the width of goods, adjust the distance between two groups fork, so that fork can stably fork and transport goods.

[0019] 2、 this fork mechanism for truck-mounted forforklift, when needing to adjust the goods on the fork offset from the ground to be normal, first start no. 1 normal and reverse motor drive longitudinal lead screw rotation, rectangular slide block passes through pin sleeve and can drive the shift plate to move to the outside of goods, and rectangular slide block passes through pin sleeve, right angle frame and adjusting bevel gear and can drive the spline telescopic shaft to stretch, and then start no. 2 normal and reverse motor drive spline telescopic shaft rotation, and then spline telescopic shaft can drive adjusting bevel gear rotation, and through the meshing of adjusting bevel gear and driven bevel gear, so that driven bevel gear can drive the shift plate to rotate upwards, so when the goods offset to which place, make the shift plate of which place rotate, so through two groups shift plate can make the goods on the fork normal, so that the normal goods are more convenient to stack. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the front view schematic diagram of the utility model structure;

[0021] Figure 2 It is the back view schematic diagram of the utility model structure; Figure 1 It is the local enlarged view schematic diagram of structure A in the utility model;

[0022] Figure 3 It is the back view schematic diagram of the utility model structure;

[0023] Figure 4 It is the schematic diagram of fork and shift plate of the utility model structure;

[0024] Figure 5 It is the local enlarged view schematic diagram of structure B in the utility model. Figure 4

[0025] ​Wherein: 1, rack; 2, fixed ear; 3, upper fixed block; 4, transverse screw; 5, transverse bevel gear; 6, three head support; 7, drive bevel gear; 8, drive shaft; 9, screw sleeve; 10, lower fixed block; 11, slide rail; 12, slide sleeve; 13, linkage frame; 14, fork; 15, inner groove; 16, No. 1 reversible motor; 17, No. 2 reversible motor; 18, longitudinal screw; 19, spline telescopic shaft; 20, rectangular slide block; 21, pin sleeve; 22, push plate; 23, adjusting bevel gear; 24, driven bevel gear; 25, right angle frame. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] Please refer to Figures 1-5 The utility model provides a kind of fork mechanism for truck-mounted fork truck, including rack 1, fixed ear 2 is fixed on rack 1, upper fixed block 3 is fixed on the front upper of rack 1, transverse screw 4 is rotated on upper fixed block 3, the inner side one end of transverse screw 4 is fixed with transverse bevel gear 5, three head support 6 is fixed on rack 1, drive bevel gear 7 is rotated between two groups of transverse bevel gear 5, drive shaft 8 is fixed on drive bevel gear 7, screw sleeve 9 is threadedly connected on transverse screw 4, lower fixed block 10 is fixed on the front lower of rack 1, slide rail 11 is fixed on lower fixed block 10, slide sleeve 12 is slid on slide rail 11, linkage frame 13 is fixed between screw sleeve 9 and slide sleeve 12, fork 14 is fixed on slide sleeve 12;

[0028] Inner groove 15 is set in fork 14, No. 1 reversible motor 16 is installed on one side of inner groove 15, No. 2 reversible motor 17 is installed on the other side of inner groove 15, longitudinal screw 18 is fixed on the output end of No. 1 reversible motor 16, spline telescopic shaft 19 is fixed on the output end of No. 2 reversible motor 17, rectangular slide block 20 is slid in the inside of one side inner groove 15 of No. 1 reversible motor 16, pin sleeve 21 is rotated on rectangular slide block 20, push plate 22 is rotated on pin sleeve 21, adjusting bevel gear 23 is fixed on the end face of spline telescopic shaft 19, driven bevel gear 24 is fixed on the side of push plate 22, right angle frame 25 is arranged between pin sleeve 21 and adjusting bevel gear 23, by connecting fixed ear 2 with external lifting structure, rack 1 can be driven to move in the direction of up and down, by connecting drive shaft 8 with external drive structure, drive shaft 8 can be driven to rotate, so that the distance between two forks 14 can be adjusted, thereby facilitating the fork picking of goods.

[0029] Further, one end of the right-angle frame 25 is rotationally connected with the pin sleeve 21, and the other end of the right-angle frame 25 is rotationally connected with the adjusting bevel gear 23, so that the rectangular sliding block 20 can drive the spline telescopic shaft 19 to stretch through the pin sleeve 21, the right-angle frame 25 and the adjusting bevel gear 23.

[0030] Further, the adjusting bevel gear 23 is fixedly connected with the spline telescopic shaft 19, the driven bevel gear 24 is fixedly connected with the push plate 22, the adjusting bevel gear 23 is engaged with the driven bevel gear 24, when the spline telescopic shaft 19 drives the adjusting bevel gear 23 to rotate, the driven bevel gear 24 can drive the push plate 22 to rotate through the engagement of the adjusting bevel gear 23 and the driven bevel gear 24.

[0031] Further, the rectangular sliding block 20 is slidingly connected with the inner groove 15, the longitudinal screw rod 18 penetrates through the rectangular sliding block 20 and is threadedly connected with the rectangular sliding block 20, one end of the longitudinal screw rod 18 away from the No. 1 reversible motor 16 is rotationally connected with the inner wall of the inner groove 15, so that the longitudinal screw rod 18 can drive the rectangular sliding block 20 to move, thereby the rectangular sliding block 20 can drive the spline telescopic shaft 19 to stretch or contract through the pin sleeve 21, the right-angle frame 25 and the adjusting bevel gear 23.

[0032] Further, the fork 14 is slidingly connected with the sliding sleeve 12 through the sliding rail 11, the upper and lower ends of the linkage frame 13 are fixedly connected with the sleeve 9 and the sliding sleeve 12 respectively, so that the sliding sleeve 12 can be guided through the sliding rail 11, when the transverse screw rod 4 drives the sleeve 9 to move, the sleeve 9 can drive the sliding sleeve 12 to move through the linkage frame 13.

[0033] Further, the transverse screw rod 4 penetrates through the sleeve 9 and is threadedly connected with the sleeve 9, the two transverse screw rods 4 and the sleeves 9 are symmetrically arranged, when the two groups of transverse screw rods 4 rotate, the two groups of sleeves 9 can be brought close to or away from each other, thereby the sleeves 9 can drive the two groups of forks 14 to be close to or away from each other through the linkage frame 13 and the sliding sleeve 12.

[0034] Further, the top end of the three-head support 6 is fixedly connected with the rack 1, the two ends of the three-head support 6 are rotationally connected with the transverse bevel gears 5 on the two sides, so that the two transverse screw rods 4 and the transverse bevel gears 5 can be rotationally supported through the three-head support 6.

[0035] Further, the driving bevel gear 7 is engaged with the transverse bevel gears 5 on the two sides, the rack 1 is fixedly provided with a support frame, and the driving shaft 8 is rotationally connected with the support frame, so that the driving shaft 8 can be rotationally supported through the support frame, the driving shaft 8 can drive the driving bevel gear 7 to rotate, and the driving bevel gear 7 can drive the transverse bevel gears 5 on the two sides to rotate.

[0036] In use, by connecting the fixing lug 2 with the external lifting structure, the rack 1 can be driven to move in the vertical direction, by connecting the driving shaft 8 with the external driving structure, the driving shaft 8 can be driven to rotate, and then the driving shaft 8 can drive the two groups of horizontal lead screws 4 to rotate through the meshing of the driving bevel gears 7 and the two groups of lateral bevel gears 5, when the two groups of horizontal lead screws 4 rotate, the two groups of lead sleeves 9 can be driven to move closer to or away from each other, at this time, the sliding sleeve 12 moves on the sliding rail 11, and then the lead sleeve 9 can drive the two groups of forks 14 to move closer to or away from each other through the linkage frame 13 and the sliding sleeve 12, so that the distance between the two groups of forks 14 can be adjusted according to the width of the goods, so that the forks 14 can stably fork and transport the goods, in addition, after the two groups of forks 14 fork the goods off the ground, when it is necessary to adjust and correct the goods forked off the ground on the forks 14, first start the first normal and reverse motor 16 to drive the longitudinal lead screw 18 to rotate, and then the longitudinal lead screw 18 can drive the rectangular sliding block 20 to slide in the inner groove 15, at this time, the rectangular sliding block 20 can drive the push plate 22 to move to the outside of the goods through the pin sleeve 21, in this process, the rectangular sliding block 20 can drive the spline telescopic shaft 19 to stretch through the pin sleeve 21, the right angle frame 25 and the adjusting bevel gear 23, then start the second normal and reverse motor 17 to drive the spline telescopic shaft 19 to rotate, and then the spline telescopic shaft 19 can drive the adjusting bevel gear 23 to rotate, and through the meshing of the adjusting bevel gear 23 and the driven bevel gear 24, the driven bevel gear 24 can drive the push plate 22 to rotate upward, so when the goods deviate to which place, the push plate 22 in which place rotates, so that the two groups of push plates 22 can correct the goods on the forks 14, so that the corrected goods are more convenient to stack, and the forks 14 can also prevent the goods from falling off the forks 14 during the transportation of the goods through the push plate 22, so that the forks 14 are more stable during the transportation of the goods, when it is necessary to stack the goods, the push plate 22 is reversed and hidden in the forks 14, and the goods can be normally stacked.

[0037] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fork mechanism for a truck-mounted forklift, comprising a frame (1), characterized in that: A fixed ear (2) is fixed on the frame (1), an upper fixed block (3) is fixed above the front of the frame (1), a transverse screw rod (4) is rotated on the upper fixed block (3), a transverse bevel gear (5) is fixed on the inner end of the transverse screw rod (4), a three-head bracket (6) is fixed on the frame (1), a driving bevel gear (7) is rotated between two groups of the transverse bevel gears (5), a driving shaft (8) is fixed on the driving bevel gear (7), a threaded sleeve (9) is threadedly connected on the transverse screw rod (4), a lower fixed block (10) is fixed below the front of the frame (1), a slide rail (11) is fixed on the lower fixed block (10), a sliding sleeve (12) is slid on the slide rail (11), a linkage frame (13) is fixed between the sliding sleeve (12) and the threaded sleeve (9), and a fork (14) is fixed on the sliding sleeve (12); An inner groove (15) is provided inside the fork (14), a first forward and reverse motor (16) is installed on one side of the inner groove (15), a second forward and reverse motor (17) is installed on the other side of the inner groove (15), a longitudinal screw rod (18) is fixed to the output end of the first forward and reverse motor (16), a spline telescopic shaft (19) is fixed to the output end of the second forward and reverse motor (17), a rectangular slider (20) is slid inside the inner groove (15) on one side of the first forward and reverse motor (16), a pin sleeve (21) is rotated on the rectangular slider (20), a dial plate (22) is rotated on the pin sleeve (21), an end face of the spline telescopic shaft (19) is fixed with an adjusting bevel gear (23), a side face of the dial plate (22) is fixed with a driven bevel gear (24), and a right angle frame (25) is provided between the pin sleeve (21) and the adjusting bevel gear (23).

2. A fork mechanism for a truck-mounted forklift according to claim 1, characterized in that: One end of the right-angle frame (25) is rotatably connected to the pin sleeve (21), and the other end of the right-angle frame (25) is rotatably connected to the adjusting bevel gear (23).

3. The fork mechanism for a truck-mounted forklift according to claim 1, characterized in that: The regulating bevel gear (23) is fixedly connected to the spline telescopic shaft (19), the driven bevel gear (24) is fixedly connected to the shift plate (22), and the regulating bevel gear (23) is meshed with the driven bevel gear (24).

4. The fork mechanism for a truck-mounted forklift according to claim 1, characterized in that: The rectangular slider (20) is slidably connected to the inner groove (15), the longitudinal screw rod (18) passes through the rectangular slider (20) and is threadedly connected to the rectangular slider (20), and the end of the longitudinal screw rod (18) away from the first forward and reverse motor (16) is rotatably connected to the inner wall of the inner groove (15).

5. The fork mechanism for a truck-mounted forklift according to claim 1, characterized in that: The cargo fork (14) is slidably connected to the slide rail (11) via a sliding sleeve (12), and the upper and lower ends of the linkage frame (13) are fixedly connected to the thread sleeve (9) and the sliding sleeve (12) respectively.

6. The fork mechanism for a truck-mounted forklift according to claim 1, characterized in that: The transverse screw rod (4) passes through the silk sleeve (9) and is threadedly connected to the silk sleeve (9), and the transverse screw rod (4) and the silk sleeve (9) on both sides are symmetrically arranged.

7. The fork mechanism for a truck-mounted forklift according to claim 1, characterized in that: The top end of the three-head bracket (6) is fixedly connected to the frame (1), and the two ends of the three-head bracket (6) are rotatably connected to the transverse bevel teeth (5) on both sides thereof.

8. The fork mechanism for a truck-mounted forklift according to claim 1, characterized in that: The driving bevel gear (7) is engaged with the transverse bevel gears (5) on both sides. A support frame is fixed on the frame (1), and the driving shaft (8) is rotatably connected to the support frame.

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