Telescopic loading and unloading suspension arm

Abstract

The utility model discloses a telescopic loading and unloading suspension arm which comprises a clamping arm, a telescopic arm, a push arm driving device, a lateral moving device and at least two hoisting pieces, the lateral moving device is used for being connected to a forklift and driving one end of the clamping arm to move laterally, and the back face of the clamping arm is connected to a translation part of the lateral moving device in a sliding mode. The telescopic arm is slidably connected to the interior of the clamping arm and extends out of an opening in the front face of the clamping arm, the two push arm driving devices are symmetrically arranged on the two outer side walls of the clamping arm respectively, and output shafts of the push arm driving devices are in transmission connection with the two outer side walls of the telescopic arm. The telescopic arm can be driven by the push arm driving device to stretch out and draw back at the opening position of the clamping arm, the lateral moving device can simultaneously drive the clamping arm and the telescopic arm to move left and right, and the hoisting pieces are arranged on the telescopic arm in a sliding mode. According to the telescopic arm, on the basis of the original length of the interior of the clamping arm, the lifting length is further increased through driving of the push arm driving device, the flexibility is high, and the super-long lifting requirement of a specific angle can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a loading and unloading crane arm technical field, more specifically, it relates to a telescopic loading and unloading crane arm. BACKGROUND

[0002] In the hoisting operation, in order to meet the height higher cargo carrying and carrying demand, usually need to use the forklift, crane and crane arm etc. Equipment cooperation is carried out hoisting. But the traditional crane arm is usually fixed length, when needing hoisting higher or super long goods (such as 40 feet high cabinet), traditional crane arm cannot support the height or length of goods, cannot meet the different goods length carrying demand, and the limitation is bigger, and in the absence of line or unloading platform, the crane arm is easy to collide when operating in the relatively narrow environment, and the flexibility of operation is limited. In addition, there are also telescopic crane arms on the market, but most telescopic crane arms are still limited to the maximum hoisting length of 20 feet, which cannot meet the market demand for hoisting super long goods. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned defects in the prior art, and provides a telescopic loading and unloading crane arm capable of flexibly adjusting the length of the telescopic arm and the specific angle hoisting requirement according to actual demand.

[0004] To achieve the above object, the utility model provides a telescopic loading and unloading crane arm, including clamping arm, telescopic arm, push arm driving device, the side shift device for being connected on the forklift and driving one end side of clamping arm lateral movement, the back surface of clamping arm is slidably connected on the translation position of side shift device, the telescopic arm is slidably connected in the inside of clamping arm and extends the open position at the front of clamping arm, the push arm driving device is equipped with two and is respectively arranged on the two outer side walls of clamping arm, the output shaft of push arm driving device is transmission connection with the two outer side walls of telescopic arm, the telescopic arm can be driven to extend or retract at the open position of clamping arm by push arm driving device, the side shift device can drive clamping arm and telescopic arm to move left and right along the length direction, and the hoisting piece is slidably arranged on the telescopic arm.

[0005] As preferred, the side shifting device comprises a side shifting connecting seat for forklift connection, a side shifting connecting rod, a left shifting driving cylinder and a right shifting driving cylinder, both ends of the side shifting connecting seat are fixedly connected with a left vertical plate and a right vertical plate respectively, the cross section of the side shifting connecting seat is arranged in an inverted T shape, the side shifting connecting rod is provided with two rods and is connected in parallel between the left vertical plate and the right vertical plate respectively and is located on the upper and lower sides of the side shifting connecting seat, the other end of the clamping arm is slidingly connected on the side shifting connecting rod, the left shifting driving cylinder and the right shifting driving cylinder are arranged oppositely and are fixedly penetrated on the two side walls of the clamping arm, the output shaft of the left shifting driving cylinder is transmissionally connected with the inner side wall of the left vertical plate through a left fixing seat and can drive the clamping arm to move leftward, the output shaft of the right shifting driving cylinder is transmissionally connected with the inner side wall of the right vertical plate through a right fixing seat and can drive the clamping arm to move rightward.

[0006] As preferred, the side shifting device further comprises an upper roller, a lower roller, an upper roller fixing plate, a lower roller fixing plate, an upper forklift gantry rail and a lower forklift gantry rail, the upper roller fixing plate is fixedly connected with the top surface of the clamping arm through locking screws and extends the clamping arm towards the direction of the side shifting connecting seat, the upper roller is provided with a plurality of upper rollers and is rotatably and spacedly connected below the extended part of the upper roller fixing plate, the upper forklift gantry rail is horizontally fixed on the back top of the side shifting connecting seat, the outer side surface of each upper roller is in rolling contact with the two side walls of the upper forklift gantry rail, the lower roller fixing plate is fixedly connected with the bottom surface of the clamping arm through locking screws and extends the clamping arm towards the direction of the side shifting connecting seat, the lower roller is provided with a plurality of lower rollers and is rotatably and spacedly connected below the extended part of the lower roller fixing plate, the lower forklift gantry rail is horizontally fixed on the front bottom of the side shifting connecting seat and is located between the left vertical plate and the right vertical plate, the outer side surface of each lower roller is in rolling contact with the two side walls of the lower forklift gantry rail.

[0007] As preferred, the push arm driving device comprises a push arm driving oil cylinder, an oil cylinder mounting cover plate and an oil cylinder mounting seat, the oil cylinder mounting seat is fixedly connected on the bottom of the push arm driving oil cylinder, the oil cylinder mounting cover plate is fixedly connected with the outer side wall of the clamping arm through locking screws after penetrating through the oil cylinder mounting seat, so as to realize the fixed installation of the push arm driving oil cylinder on the outer side wall of the clamping arm, the output shaft of the push arm driving oil cylinder is transmissionally connected with the push arm seats arranged symmetrically on the two outer side walls of the telescopic arm and can drive the push arm seats to move forward and backward.

[0008] As preferred, the side shifting device further comprises fixing blocks for clamping with the upper end of the forklift mast and connecting blocks for detachable connection with the lower end of the forklift mast, the fixing blocks are arranged in several pieces and are arranged in a downward interval on the upper part of the back of the side shifting connecting seat, the bottom of each fixing block is concavely provided with a first clamping groove on one side, the connecting blocks are arranged in several pieces and are arranged in an upward interval on the lower part of the back of the side shifting connecting seat, the top of each connecting block is concavely provided with a second clamping groove on one side, and the mounting holes are respectively formed through the front and back surfaces of each connecting block.

[0009] As preferred, the longitudinal section shape of the clamping arm is arranged in an inverted right-angled trapezoid, the lower end surface of the clamping arm is arranged in an arc transition, and a plurality of reinforcing ribs are arranged between the two side walls of the clamping arm.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] The utility model discloses a novel structure and reasonable design, and the telescopic arm is driven by the push arm driving device to stretch out or retract at the opening position of the clamping arm, which can further increase the hoisting length on the basis of the original length in the clamping arm, and the angle and position of the goods can be adjusted by the side shifting device when hoisting the goods from different angles. This design can flexibly adjust the length of the telescopic arm according to actual requirements during hoisting, meet the super-long hoisting requirements of specific angles, and further make up for the deficiencies of fixed length and single function of the traditional hoisting arm. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0013] Figure 1 It is a structure schematic diagram of the telescopic loading and unloading hoisting arm provided by the utility model embodiment.

[0014] Figure 2 It is a partial structure schematic diagram of the telescopic loading and unloading hoisting arm provided by the utility model embodiment.

[0015] Figure 3 It is an explosion schematic diagram of the side shifting device of the telescopic loading and unloading hoisting arm provided by the utility model embodiment. Figure 1

[0016] Figure 4 It is an explosion schematic diagram of the side shifting device of the telescopic loading and unloading hoisting arm provided by the utility model embodiment. Figure 2 ​​

[0017] Figure 5 is a back view schematic diagram of the side moving device of the telescopic loading and unloading crane arm provided by the embodiment of the present application;

[0018] Figure 6 is a partial structure enlarged schematic diagram of the telescopic loading and unloading crane arm provided by the embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figure 1 The embodiment of the present application provides a telescopic loading and unloading crane arm, which comprises a clamping arm 1, a telescopic arm 2, a pushing arm driving device 3, a side moving device 4 for being connected on a forklift and driving one end of the clamping arm 1 to move laterally, and at least two hoisting pieces 5 and the like. The components of the present embodiment will be described in detail below with reference to the drawings.

[0021] As shown in Figure 1 and Figure 2 , the back of the clamping arm 1 can be slidably connected on the translation part of the side moving device 4, the telescopic arm 2 is slidably connected inside the clamping arm 1 and extends out of the opening position in the front of the clamping arm 1, the pushing arm driving device 3 is provided with two and is symmetrically arranged on the two outer side walls of the clamping arm 1, the output shaft of the pushing arm driving device 3 is in transmission connection with the two outer side walls of the telescopic arm 2, and the hoisting pieces 5 are slidably arranged on the telescopic arm 2.

[0022] Preferably, the longitudinal section shape of the clamping arm 1 can be arranged in an inverted right-angled trapezoidal shape, the lower end surface of the clamping arm 1 is arranged in an arc-shaped transition, and a plurality of reinforcing ribs 11 are arranged between the two side walls of the clamping arm 1, which is beneficial to disperse stress and enhance the rigidity and strength of the structure, so as to improve the load strength.

[0023] In specific implementation, the telescopic arm 2 can be driven by the pushing arm driving device 3 to extend or retract at the opening position of the clamping arm 1, the side moving device 4 can simultaneously drive the clamping arm 1 and the telescopic arm 2 to move left and right along the length direction thereof, multi-angle adjustment can be realized, the flexibility is high, the goods are fixed and supported by the hoisting pieces 5, and the loading operation is realized. The present embodiment has the capacity of 2 tons without adding a trolley, and the telescopic arm 2 can also be extended on the basis of the original length inside the clamping arm 1 (such as Figure 1), through the push arm driving device 3 drive further 800mm, can be about 40 feet high cabinet hoisting, far more than the conventional market can only hoist 20 feet of boom, greatly expanding the length of the hoisting object range.

[0024] In this embodiment, the push arm driving device 3 can include push arm driving cylinder 31, cylinder mounting cover plate 32 and cylinder mounting seat 33, cylinder mounting seat 33 is fixedly connected at the bottom of the push arm driving cylinder 31, cylinder mounting cover plate 32 is fixedly connected with the outer side wall of the clamping arm 1 through the locking screw through the cylinder mounting seat 33, so as to realize the fixed installation of the push arm driving cylinder 31 on the outer side wall of the clamping arm 1, the output shaft of the push arm driving cylinder 31 is in transmission connection with the push arm seat 21 symmetrically arranged on the two outer side walls of the telescopic arm 2 and can drive it to move forward and backward.

[0025] Among them, the push arm driving cylinder 31 can provide a larger thrust and can keep stable, can realize the accurate position control of the telescopic arm 2, through the cylinder mounting seat 33 and the cylinder mounting cover plate 32 fixed on the outer side wall of the clamping arm 1, the installation mode is flexible and stable.

[0026] As shown in Figure 3 , the side shift device 4 can include a side shift connecting seat 41 for forklift connection, a side shift slide rod 42, a left shift driving cylinder 43 and a right shift driving cylinder 44, the two ends of the side shift connecting seat 41 are fixedly connected with a left side plate 411 and a right side plate 412 respectively, the cross section of the side shift connecting seat 41 is arranged in an inverted shape, the side shift slide rod 42 is provided with two parallel and spaced apart between the left side plate 411 and the right side plate 412 and located on the upper and lower sides of the side shift connecting seat 41, the other end of the clamping arm 1 is slidably connected on the side shift slide rod 42, the left shift driving cylinder 43 and the right shift driving cylinder 44 are arranged opposite to each other and fixedly connected on the two side walls of the clamping arm 1, the output shaft end of the left shift driving cylinder 43 is in transmission connection with the inner side wall of the left side plate 411 through the left fixed seat and can drive the clamping arm 1 to move left, the output shaft end of the right shift driving cylinder 44 is in transmission connection with the inner side wall of the right side plate 412 through the right fixed seat and can drive the clamping arm 1 to move right. Among them, the opposite arrangement and independent control of the left shift driving cylinder 43 and the right shift driving cylinder 44 improves the flexibility and response speed of operation.

[0027] As shown in Figure 4As shown, in order to further improve the smoothness of the sliding of the side shift connecting seat 41 and prevent it from shaking when sliding, the side shift device 4 can also include upper rollers 45, lower rollers 46, an upper roller fixing plate 451, a lower roller fixing plate 461, an upper forklift mast rail 47, and a lower forklift mast rail 48. The upper roller fixing plate 451 is fixedly connected to the top surface of the clamping arm 1 by locking screws and extends the clamping arm 1 towards the side shift connecting seat 41. The upper rollers 45 are provided in a plurality of numbers and are rotatably and spacedly connected below the extended part of the upper roller fixing plate 451. The upper forklift mast rail 47 is horizontally fixed to the top of the back of the side shift connecting seat 41. The outer side surface of each upper roller 45 is in rolling contact with the two side walls of the upper forklift mast rail 47. The lower roller fixing plate 461 is fixedly connected to the bottom surface of the clamping arm 1 by locking screws and extends the clamping arm 1 towards the side shift connecting seat 41. The lower rollers 46 are provided in a plurality of numbers and are rotatably and spacedly connected below the extended part of the lower roller fixing plate 461. The lower forklift mast rail 48 is horizontally fixed to the bottom of the front of the side shift connecting seat 41 and is located between the left side stand 411 and the right side stand 412. The outer side surface of each lower roller 46 is in rolling contact with the two side walls of the lower forklift mast rail 48.

[0028] Further, the side shift device 4 can also include fixing blocks 491 for clamping with the upper end of the forklift mast and connecting blocks 492 for detachable connection with the lower end of the forklift mast. The fixing blocks 491 are provided in a plurality of numbers and are spacedly arranged downwards on the upper part of the back of the side shift connecting seat 41. The bottom side of each fixing block 491 is recessed with a first clamping groove 4911. The connecting blocks 492 are provided in a plurality of numbers and are spacedly arranged upwards on the lower part of the back of the side shift connecting seat 41. The top side of each connecting block 492 is recessed with a second clamping groove 4921. The mounting holes 4922 are provided in a plurality of numbers and are respectively formed through the front and back of each connecting block 492.

[0029] In specific implementation, the back of the side shift connecting seat 31 can be detachably installed with the forklift. When the embodiment is installed on the forklift, the upper end of the forklift mast is clamped with the first clamping groove 4911 of the fixing block 491, the second clamping groove 4921 of the connecting block 492 is clamped with the lower end of the forklift mast, and finally the mounting holes 4922 are fixedly connected with the side shift connecting seat 51 by locking screws.

[0030] Further, the embodiment can be integrally disassembled. When loading and unloading the container, the fixing blocks 491 and the connecting blocks 492 can be used to quickly install with the forklift mast without the need for secondary modification of the forklift, without affecting the original functions of the forklift. When not in use, the embodiment can be easily disassembled.

[0031] As shown, Figure 6As shown, the hoisting member 5 of the embodiment can include slide sleeves 51, connecting rods 52 and upper protective covers 53, the slide sleeves 51 are provided with two and are respectively sleeved on the telescopic arms 2, the connecting rods 52 are provided with two and are respectively rotatably connected to the slide sleeves 51 along the direction perpendicular to the telescopic arms 2, and one end of the upper protective cover 53 is slidably connected to the connecting rod 52.

[0032] Specifically, the slide sleeves 51 can be hollow square tube structures, the top of the slide sleeve 51 is provided with a hinge seat 511 perpendicular to the opening direction of the slide sleeve 51, one end of the connecting rod 52 is hinged in the hinge seat 511, and one end of the upper protective cover 53 is sleeved on the connecting rod 52 and is slidably connected to the connecting rod 52, and the upper protective cover 53 can abut against the limiting piece 521 at the other end of the connecting rod 52 when moving outward.

[0033] In specific implementation, the slide sleeves 51 can adjust the position in the length direction of the telescopic arms 2, and a supporting frame with the same width as the upper protective cover 53 and with a bottom plate can be additionally arranged at the bottom of the upper protective cover 53, the bottom plate can provide support for goods such as glass, stone, wood board or alloy profile, so as to ensure that the goods will not fall during hoisting and to ensure the stability of hoisting; in addition, the slide sleeves 51 of the embodiment can be replaced by adjustable hooks and the like to hoist goods such as high cabinets, and the embodiment does not limit the hoisting member 5.

[0034] In summary, the utility model can flexibly adjust the length of the telescopic arms and the specific angle hoisting requirement according to actual needs, and further makes up for the deficiency of the fixed length and single function of the traditional hoisting arm.

[0035] It should be noted that according to actual needs, the utility model can be used for hoisting long / high goods such as glass, stone (such as granite and marble), wood board and alloy profile, and has a wide range of applications, and is not limited herein.

[0036] The above embodiment is a preferred implementation manner of the utility model, but the implementation manner of the utility model is not limited by the above embodiment, and any change, modification, replacement, combination and simplification made without departing from the spirit and principle of the utility model should be an equivalent replacement manner, and all are included in the protection scope of the utility model.

Claims

1. A telescoping load handling jib, characterised in that: The utility model relates to a kind of fork truck lifting device, including clamping arm (1), telescopic arm (2), push arm driving device (3), for connecting on fork truck and driving clamping arm (1) one end side lateral movement side shift device (4) and at least two hoisting pieces (5), the back of the clamping arm (1) is slidably connected on the translation site of side shift device (4), the telescopic arm (2) is slidably connected inside clamping arm (1) and extends the opening position at the front of clamping arm (1), the push arm driving device (3) is equipped with two and is respectively symmetrically arranged on the two outer side walls of clamping arm (1), the output shaft of the push arm driving device (3) is drivingly connected with the two outer side walls of telescopic arm (2), the telescopic arm (2) can be driven by push arm driving device (3) to extend or retract at the opening position of clamping arm (1), the side shift device (4) can simultaneously drive clamping arm (1) and telescopic arm (2) left and right along its length direction, the hoisting piece (5) is slidably arranged on telescopic arm (2) respectively.

2. A telescoping load handling jib according to claim 1 wherein: The side shift device (4) includes a side shift connecting seat (41) for connecting with the fork truck, a side shift slide rod (42), a left shift driving cylinder (43), and a right shift driving cylinder (44). The two ends of the side shift connecting seat (41) are fixedly connected with a left vertical plate (411) and a right vertical plate (412), respectively. The cross section of the side shift connecting seat (41) is in the shape of an inverted L. The side shift slide rod (42) is provided with two rods that are parallel and spaced apart between the left vertical plate (411) and the right vertical plate (412) and located on the upper and lower sides of the side shift connecting seat (41). The other end of the clamping arm (1) is slidably connected to the side shift slide rod (42). The left shift driving cylinder (43) and the right shift driving cylinder (44) are oppositely arranged and fixedly provided on the two side walls of the clamping arm (1). The output shaft end of the left shift driving cylinder (43) is drivingly connected to the inner side wall of the left vertical plate (411) through a left fixed seat and can drive the clamping arm (1) to move leftward. The output shaft end of the right shift driving cylinder (44) is drivingly connected to the inner side wall of the right vertical plate (412) through a right fixed seat and can drive the clamping arm (1) to move rightward.

3. A telescoping load handling jib according to claim 2, wherein: The side shifting device (4) further comprises upper rollers (45), lower rollers (46), an upper roller fixing plate (451), a lower roller fixing plate (461), an upper forklift mast rail (47), and a lower forklift mast rail (48). The upper roller fixing plate (451) is fixedly connected to the top surface of the clamping arm (1) by locking screws and extends out of the clamping arm (1) towards the direction of the side shifting connecting base (41). The upper rollers (45) are provided in a plurality of numbers and are rotatably and spacedly connected below the extended part of the upper roller fixing plate (451). The upper forklift mast rail (47) is horizontally fixed to the top of the back of the side shifting connecting base (41). The outer side surface of each upper roller (45) is in rolling contact with the two side walls of the upper forklift mast rail (47). The lower roller fixing plate (461) is fixedly connected to the bottom surface of the clamping arm (1) by locking screws and extends out of the clamping arm (1) towards the direction of the side shifting connecting base (41). The lower rollers (46) are provided in a plurality of numbers and are rotatably and spacedly connected below the extended part of the lower roller fixing plate (461). The lower forklift mast rail (48) is horizontally fixed to the bottom of the front of the side shifting connecting base (41) and is located between the left vertical plate (411) and the right vertical plate (412). The outer side surface of each lower roller (46) is in rolling contact with the two side walls of the lower forklift mast rail (48).

4. A telescoping load handling jib according to claim 1 wherein: The push arm driving device (3) comprises a push arm driving oil cylinder (31), an oil cylinder mounting cover plate (32), and an oil cylinder mounting base (33). The oil cylinder mounting base (33) is fixedly connected to the bottom of the push arm driving oil cylinder (31). The oil cylinder mounting cover plate (32) is fixedly connected to the outer side wall of the clamping arm (1) by locking screws passing through the oil cylinder mounting base (33), thereby achieving the fixed installation of the push arm driving oil cylinder (31) on the outer side wall of the clamping arm (1). The output shaft of the push arm driving oil cylinder (31) is in transmission connection with the push arm seats (21) symmetrically arranged on the two outer side walls of the telescopic arm (2) and can drive the push arm seats (21) to move forward and backward.

5. A telescoping load handling jib according to claim 2, wherein: The side shifting device (4) further comprises fixing blocks (491) for clamping with the upper end of the forklift mast and connecting blocks (492) for detachable connection with the lower end of the forklift mast. The fixing blocks (491) are provided in a plurality of numbers and are spacedly arranged downward on the upper part of the back of the side shifting connecting base (41). The bottom side of each fixing block (491) is recessed with a first clamping groove (4911). The connecting blocks (492) are provided in a plurality of numbers and are spacedly arranged upward on the lower part of the back of the side shifting connecting base (41). The top side of each connecting block (492) is recessed with a second clamping groove (4921). The installation holes (4922) passing through the front and back of each connecting block (492) are provided.

6. A telescoping load handling jib according to claim 1 wherein: The longitudinal section of the clamping arm (1) is in the shape of an inverted right-angled trapezoid. The lower end surface of the clamping arm (1) is in an arc-shaped transition. A plurality of reinforcing ribs (11) are arranged between the two side walls of the clamping arm (1).

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