Weight-measurable telescopic grabbing arm for truck-mounted crane

Abstract

The utility model discloses a weight-measurable telescopic grabbing arm for a truck-mounted crane, which belongs to the technical field of truck-mounted cranes and comprises a truck body, a truck head and a carriage bottom plate, the truck head and the carriage bottom plate are connected to one end of the truck body, a supporting upright column is arranged on the top surface of the carriage bottom plate, and a telescopic arm is rotatably mounted at the top end of the supporting upright column. An extension arm is arranged at the end, away from the supporting stand column, of the telescopic arm, a clamping jaw is arranged at the bottom end of the extension arm, and the extension arm is connected with the compartment bottom plate through a positioning auxiliary support assembly and moves on the compartment bottom plate through the positioning auxiliary support assembly. The positioning auxiliary support assembly comprises a U-shaped positioning frame connected to the bottom face of the extending arm in a clamped mode and an inverted U-shaped positioning support connected to the bottom face of the U-shaped positioning frame in a sliding mode, the bottom end of the U-shaped positioning support is connected with the outer walls of the two sides of the compartment bottom plate in a sliding mode, and the bottom end of the supporting stand column is connected with the compartment bottom plate through a rotary positioning assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of truck-mounted cranes, in particular to a weight-measurable telescopic grab arm for truck-mounted cranes. Background Art

[0002] The full name of truck mounted crane is truck mounted crane transport vehicle. It is a kind of equipment which realizes the lifting, rotation and hoisting of goods through hydraulic lifting and telescopic system. It is usually installed on trucks and generally consists of truck chassis, cargo compartment, power take-off and crane. The arms of truck mounted crane are divided into straight arm truck mounted crane and folding arm truck mounted crane. The advantages of truck mounted crane are good maneuverability, rapid transfer, and can integrate lifting and transportation functions.

[0003] Traditional truck-mounted crane equipment often lacks sufficient support and positioning during operation, and the equipment may shake or even tip over when carrying heavy cargo, affecting operational safety and reducing operational efficiency. Utility Model Content

[0004] The utility model aims to provide a weight-measurable telescopic grab arm for a truck-mounted crane to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a weight-measurable telescopic grab arm for a truck-mounted crane, comprising a truck body and a truck head and a truck floor connected to one end of the truck body, the top surface of the truck floor is provided with a supporting column, and a telescopic arm is rotatably installed on the top of the supporting column, an extension arm is provided at one end of the telescopic arm away from the supporting column, a clamping claw is provided at the bottom end of the extension arm, the extension arm is connected to the truck floor through a positioning auxiliary bracket assembly, and the extension arm moves on the truck floor through the positioning auxiliary bracket assembly, the positioning auxiliary bracket assembly includes a U-shaped positioning frame clamped on the bottom surface of the extension arm and an inverted U-shaped positioning bracket slidably connected to the bottom surface of the U-shaped positioning frame, the bottom end of the U-shaped positioning bracket is slidably connected to the outer walls of both sides of the truck floor, the bottom end of the supporting column is connected to the truck floor through a rotating positioning assembly, and the rotating positioning assembly is used for rotating positioning of the supporting column.

[0006] Preferably, a slide groove is transversely provided on the top surface of the U-shaped positioning bracket, and a second sliding block is welded to the bottom surface of the U-shaped positioning frame, and the second sliding block is adapted to slide in the slide groove.

[0007] Preferably, two ear plates are symmetrically welded to the inner walls of the two positioning side plates, and a positioning roller is calibrated between two adjacent ear plates, and the positioning roller rolls and rubs on the outer wall of the car bottom plate.

[0008] Preferably, a rotation positioning assembly is fixedly installed just below the support column and on the top surface of the vehicle floor. The rotation positioning assembly includes an arc-shaped positioning plate fixedly installed on the top surface of the vehicle floor and a positioning rocker arm slidably connected to the arc-shaped positioning plate, and the tail end of the positioning rocker arm is fixedly connected to the support column.

[0009] Preferably, an arc-shaped track groove is formed on the top surface of the arc-shaped positioning plate, and a first sliding block is fixedly mounted on the bottom surface of one end of the positioning swing arm away from the supporting column, and the first sliding block is matched and connected with the arc-shaped track groove.

[0010] Preferably, two positioning rollers are symmetrically and slidably connected inside the U-shaped positioning frame, and positioning cross bars are symmetrically welded to opposite sides of the two positioning rollers, and two adjacent positioning cross bars transversely penetrate the U-shaped positioning frame.

[0011] Preferably, locking screws are rotatably connected between two adjacent positioning cross bars and on the outer walls on both sides of the U-shaped positioning frame, and the bare rod ends of the locking screws are connected to the positioning rollers through sealed bearings.

[0012] Preferably, hydraulic support columns are fixedly installed at the four corners of the peripheral outer wall of the vehicle floor.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The truck crane has a telescopic grab arm that can measure weight.

[0015] The combination of telescopic arms and grippers can quickly and accurately complete the grabbing, handling and placement of goods, reducing operation time. The built-in weight measurement function can help operators understand the actual weight of the grabbed items, avoid overloading operations, and reduce equipment damage and accident risks. The multi-directional movement capability of the telescopic arm and the precise adjustment function of the grippers enable the device to work effectively in small spaces or complex environments.

[0016] The U-shaped positioning frame and smooth movement mechanism make the operation smoother and reduce the physical exertion of the operator. The rotating positioning component can accurately control the angle of the telescopic arm to ensure that the goods are placed accurately in the designated position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1It is a schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the U-shaped positioning bracket structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 4 It is a schematic diagram of the structure of the arc-shaped positioning plate of the utility model.

[0022] Description of reference numerals:

[0023] In the figure: 1. vehicle body; 2. vehicle front; 3. vehicle floor; 4. support column; 5. telescopic arm; 6. extension arm; 7. clamping claw; 8. U-shaped positioning frame; 9. arc-shaped positioning plate; 10. hydraulic support column; 11. positioning auxiliary bracket assembly; 12. rotation positioning assembly; 13. U-shaped positioning bracket; 14. slide member; 15. positioning side plate; 16. ear plate; 17. positioning roller; 18. positioning cross bar; 19. locking screw; 20. sealed bearing; 21. arc-shaped track groove; 22. positioning rocker; 23. first slider; 24. second slider. DETAILED DESCRIPTION

[0024] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0025] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0026] This embodiment discloses Figures 1 to 4The illustrated embodiment of a weight-measurable telescopic grab arm for a vehicle-mounted crane comprises a vehicle body 1, a vehicle head 2 and a vehicle floor 3 connected to one end of the vehicle body 1, a support column 4 is provided on the top surface of the vehicle floor 3, a telescopic arm 5 is rotatably installed on the top end of the support column 4, an extension arm 6 is provided on the end of the telescopic arm 5 away from the support column 4, a clamping claw 7 is provided on the bottom end of the extension arm 6, the extension arm 6 is connected to the vehicle floor 3 through a positioning auxiliary bracket assembly 11, and the extension arm 6 moves on the vehicle floor 3 through the positioning auxiliary bracket assembly 11, the positioning auxiliary bracket assembly 11 comprises a U-shaped positioning frame 8 clamped on the bottom surface of the extension arm 6 and an inverted U-shaped positioning bracket 13 slidably connected to the bottom surface of the U-shaped positioning frame 8, the bottom end of the U-shaped positioning bracket 13 is slidably connected to the outer walls of both sides of the vehicle floor 3, the bottom end of the support column 4 is connected to the vehicle floor 3 through a rotation positioning assembly 12, and the rotation positioning assembly 12 is used for rotation positioning of the support column 4.

[0027] Specifically, a slide groove 14 is transversely opened on the top surface of the U-shaped positioning bracket 13 , and a second slider 24 is welded to the bottom surface of the U-shaped positioning frame 8 , and the second slider 24 is adapted to slide in the slide groove 14 .

[0028] Specifically, two ear plates 16 are symmetrically welded to the inner walls of the two positioning side plates 15 , and a positioning roller 17 is calibrated between two adjacent ear plates 16 , and the positioning roller 17 rolls and rubs on the outer wall of the compartment bottom plate 3 .

[0029] Specifically, a rotation positioning assembly 12 is fixedly installed just below the supporting column 4 and on the top surface of the car floor 3. The rotation positioning assembly 12 includes an arc-shaped positioning plate 9 fixedly installed on the top surface of the car floor 3 and a positioning rocker arm 22 slidably connected to the arc-shaped positioning plate 9. The tail end of the positioning rocker arm 22 is fixedly connected to the supporting column 4. An arc-shaped track groove 21 is provided on the top surface of the arc-shaped positioning plate 9. A first slider 23 is fixedly installed on the bottom surface of one end of the positioning rocker arm 22 away from the supporting column 4. The first slider 23 is fitted and connected to the arc-shaped track groove 21.

[0030] Specifically, the U-shaped positioning frame 8 has two positioning rollers 17 symmetrically and slidingly connected inside, and the two positioning rollers 17 have positioning cross bars 18 symmetrically welded on opposite sides. The two adjacent positioning cross bars 18 transversely penetrate the U-shaped positioning frame 8, and locking screws 19 are rotatably connected between the two adjacent positioning cross bars 18 and on the outer walls of both sides of the U-shaped positioning frame 8. The bare rod end of the locking screw 19 is connected to the positioning roller 17 through a sealed bearing 20, and hydraulic support columns 10 are fixedly installed at the four corners of the peripheral outer wall of the car floor 3.

[0031] Working principle:

[0032] The truck-mounted crane uses a weight-measurable telescopic grab arm to start the vehicle and arrive at the work site. The driver drives the vehicle body 1 and the front of the vehicle 2 to the location where the work is required, and unfolds the hydraulic support column 10 to increase the stability of the entire system. The rotation positioning component 12 is used to adjust the angle of the support column 4 to align with the target position. The first slider 23 slides in the arc track groove 21 to achieve precise rotation positioning, and the extension or shortening of the telescopic arm 5 is controlled to approach or move away from the target object. The U-shaped positioning frame 8 slides on the U-shaped positioning bracket 13 to adjust the lateral position of the extension arm 6 to achieve the best grabbing position.

[0033] Use the clamp 7 to grab the goods, adjust the position of the clamp by the positioning cross bar 18 and the positioning roller 17, rotate the locking screw 19 to lock the position of the clamp to ensure stable clamping. While the clamp 7 grabs the goods, the built-in sensor will measure the weight of the goods and display it on the operation panel. The telescopic arm 5 and the extension arm 6 work together to move the goods from one position to another. When reaching the designated position, operate the telescopic arm 5 and the extension arm 6 in reverse, loosen the locking screw 19, release the goods, retract the telescopic arm 5 and the extension arm 6, return to the initial state, and prepare for the next operation.

[0034] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weight-measurable telescopic grab arm for a truck-mounted crane, comprising a truck body (1), a truck head (2) connected to one end of the truck body (1), a truck floor (3) and a positioning side plate (15), characterized in that: A support column (4) is arranged on the top surface of the vehicle floor (3); a telescopic arm (5) is rotatably mounted on the top of the support column (4); an extension arm (6) is arranged at one end of the telescopic arm (5) away from the support column (4); a clamping claw (7) is arranged at the bottom end of the extension arm (6); the extension arm (6) is connected to the vehicle floor (3) via a positioning auxiliary bracket assembly (11); and the extension arm (6) moves on the vehicle floor (3) via the positioning auxiliary bracket assembly (11). The auxiliary positioning bracket assembly (11) includes a U-shaped positioning frame (8) clamped on the bottom surface of the extension arm (6) and an inverted U-shaped positioning bracket (13) slidably connected to the bottom surface of the U-shaped positioning frame (8), the bottom end of the U-shaped positioning bracket (13) is slidably connected to the outer walls of both sides of the vehicle floor (3), and the bottom end of the support column (4) is connected to the vehicle floor (3) via a rotation positioning assembly (12), and the rotation positioning assembly (12) is used for rotation positioning of the support column (4).

2. The telescopic grab arm with measurable weight for a truck-mounted crane according to claim 1, characterized in that: A slide groove member (14) is transversely provided on the top surface of the U-shaped positioning bracket (13), and a second sliding block (24) is welded to the bottom surface of the U-shaped positioning frame (8), wherein the second sliding block (24) is adapted to slide in the slide groove member (14).

3. The telescopic grab arm with measurable weight for a truck-mounted crane according to claim 2, characterized in that: Two ear plates (16) are symmetrically welded to the inner walls of the two positioning side plates (15), and a positioning roller (17) is calibrated between two adjacent ear plates (16). The positioning roller (17) rolls and rubs on the outer wall of the carriage bottom plate (3).

4. The weight-measurable telescopic grab arm for a truck-mounted crane according to claim 3, characterized in that: A rotational positioning assembly (12) is fixedly mounted directly below the support column (4) and on the top surface of the vehicle floor (3). The rotational positioning assembly (12) comprises an arc-shaped positioning plate (9) fixedly mounted on the top surface of the vehicle floor (3) and a positioning swing rod (22) slidably connected to the arc-shaped positioning plate (9). The rear end of the positioning swing rod (22) is fixedly connected to the support column (4).

5. The weight-measurable telescopic grab arm for a truck-mounted crane according to claim 4, characterized in that: The top surface of the arc-shaped positioning plate (9) is provided with an arc-shaped track groove (21), and the bottom surface of one end of the positioning swing rod (22) away from the supporting column (4) is fixedly mounted with a first sliding block (23), and the first sliding block (23) is matched and connected with the arc-shaped track groove (21).

6. The weight-measurable telescopic grab arm for a truck-mounted crane according to claim 5, characterized in that: Two positioning rollers (17) are symmetrically and slidably connected inside the U-shaped positioning frame (8), and positioning cross bars (18) are symmetrically welded to opposite sides of the two positioning rollers (17), and two adjacent positioning cross bars (18) penetrate the U-shaped positioning frame (8) transversely.

7. The weight-measurable telescopic grab arm for a truck-mounted crane according to claim 6, characterized in that: A locking screw (19) is rotatably connected between two adjacent positioning cross bars (18) and on the outer walls of both sides of the U-shaped positioning frame (8), and the smooth rod end of the locking screw (19) is connected to the positioning roller (17) via a sealed bearing (20).

8. The weight-measurable telescopic grab arm for a truck-mounted crane according to claim 7, characterized in that: Hydraulic support columns (10) are fixedly mounted at the four corners of the peripheral outer wall of the carriage floor (3).

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