CN220412630U

CN220412630U - Timber lifting gripping apparatus for crane

Info

Publication number: CN220412630U
Application number: CN202321462670.6U
Authority: CN
Inventors: 李洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2024-01-30
Anticipated expiration: 2033-06-09

Abstract

The utility model provides a timber hoisting gripping apparatus for a crane, which comprises a length-adjustable cross rod and two gripping assemblies, wherein the two gripping assemblies are connected at the head end and the tail end of the length-adjustable cross rod, each gripping assembly comprises a left clamping jaw, a right clamping jaw, a clamping hydraulic cylinder, a left lifting ring, a right lifting ring, a lifting ring and a hinge shaft, and the top of the left clamping jaw is hinged with the top of the right clamping jaw through the hinge shaft. According to the utility model, the two grabbing components can lift the wood through the two lifting points, the distance between the two grabbing components is adjusted through the length-adjustable cross rod, the effect of adjusting the distance between the two lifting points is achieved, an operator does not need to consider the problem of the gravity center of the wood too much, the stability of wood lifting is improved, the working efficiency is improved, the grabbing components are pulled to clamp the wood mainly by the gravity of the wood, and the wood can be prevented from falling off from the utility model under the condition that the clamping hydraulic cylinder fails.

Description

Timber lifting gripping apparatus for crane

Technical Field

The utility model relates to a timber gripping apparatus, in particular to a timber lifting gripping apparatus for a crane.

Background

The timber gripping apparatus is important mechanical equipment in engineering machinery construction, is widely applied to the occasions such as felling yards, wharfs and timber processing factories, and the like, and Chinese patent discloses a loader timber gripping apparatus (patent number: 201721272393.7), wherein the patent (patent number: 201721272393.7) mainly comprises a lower fork, an upper fork and a hydraulic system, wherein the lower fork is hinged with the upper fork through a pin shaft A, the lower fork is hinged with the hydraulic system through a pin shaft B, the upper fork is hinged with the hydraulic system through a pin shaft C, and a V-shaped closed space is formed when the lower fork and the upper fork are closed; the lower fork comprises more than two connecting rods, a connecting plate assembly is arranged in the middle of each connecting rod, rib plate first parts are respectively arranged on two sides of each connecting plate assembly, the parts of the rib plates on the rib plate first parts, which are not stressed, are holes, oil cylinder vertical plate assemblies are respectively arranged at two ends of each connecting rod, and fork tooth assemblies are arranged at the bottoms of the oil cylinder vertical plate assemblies. The utility model optimizes the structure, improves the grabbing efficiency of 3.9 long timber by 50 percent, simultaneously lightens the dead weight by 200kg, and reduces the manufacturing cost and the energy consumption of the whole machine.

The Chinese patent also discloses a timber gripping apparatus (201720545749.3) for woodland timber conveyor, including last clamping jaw and lower clamping jaw, two upper and lower clamping jaw link to each other through the main pin joint hinge, are connected with a pneumatic cylinder between two upper and lower clamping jaw, the both ends of pneumatic cylinder link to each other with two upper and lower clamping jaw hinge respectively, realize the clamp's of opening and shutting of gripping apparatus action through the action of control pneumatic cylinder, the lower projection of going up the clamping jaw is triangle-shaped structure, be provided with two single claws about on the clamping jaw down, two single claws fixed connection is on the body structure of clamping jaw down, in the lower projection plane of gripping apparatus, the projection of going up the clamping jaw is located between two single claws on the clamping jaw down, the downside of going up the clamping jaw hinge have arc jaw, arc jaw shares two, articulates the downside of triangle-shaped structure of last clamping jaw respectively. The utility model enables the integral upper clamping jaw to have the clamping performance advantage of the existing split upper clamping jaw and the cost advantage of the integral upper clamping jaw.

The technical solutions described in the above two chinese patents all have the following problems that the gripping device only has one lifting point when gripping wood, the gripping area of the gripping device needs to be increased to ensure gripping stability, and the gripping device also needs to be close to the position of the center of gravity of the wood as much as possible in the gripping process, so that the operation brings trouble, especially when encountering long and heavy wood, the problem that only one lifting point gripping device can shake in the lifting process is inevitable, in addition, the gripping of the wood by the upper fork (upper clamping jaw) and the lower fork (lower clamping jaw) is realized through a hydraulic cylinder, in other words, if the hydraulic cylinder fails in the lifting process, the wood can fall down, and potential safety hazards are brought.

Disclosure of Invention

The utility model aims to solve the problems and provide a timber lifting gripping apparatus for a crane.

The utility model adopts the technical scheme that: the utility model provides a timber lifts by crane gripping apparatus, includes horizontal pole and two grabbing component with adjustable length, two grabbing component connect the head and the tail both ends of horizontal pole with adjustable length, grabbing component includes left clamping jaw, right clamping jaw, clamp pneumatic cylinder, left rings, right rings, play rings and articulated shaft, the top of left clamping jaw with the top of right clamping jaw articulates together through the articulated shaft, left clamping jaw with right clamping jaw sets up in opposite directions, left rings are installed the top of left clamping jaw, right rings are installed the top of right clamping jaw, left rings, right rings concatenate on playing rings.

The cylinder body of the clamping hydraulic cylinder is movably connected to the top of the left clamping jaw, and the piston rod of the clamping hydraulic cylinder is movably connected with the right clamping jaw.

The cylinder body of the clamping hydraulic cylinder is connected with the top of the left clamping jaw through a rotating shaft, and the piston rod of the clamping hydraulic cylinder is connected with the right clamping jaw through the rotating shaft.

And the head end and the tail end of the length-adjustable cross rod are connected with the hinge shaft.

The head end and the tail end of the length-adjustable cross rod are connected with the hinge shaft through buffer components.

The buffer assembly comprises a connecting cylinder, a spring, a stop block and a fixed disc, wherein the fixed disc is fixed at one end of the connecting cylinder and fixed with the hinge shaft, a connecting rod is arranged in the cylinder at the other end of the connecting cylinder, the stop block is arranged in the connecting cylinder between the connecting rod and the fixed disc, the spring is arranged in the cylinder of the connecting cylinder, the head end and the tail end of the spring are respectively connected with the fixed disc and the stop block, the head end and the tail end of the length-adjustable cross rod are respectively movably connected with the connecting rods of the two buffer assemblies, and the stop block is in contact with the head end and the tail end of the length-adjustable cross rod.

The timber hoisting gripping apparatus for the crane further comprises a linkage, wherein the linkage comprises a guide rod, a sleeve, a left linkage rod and a right linkage rod, the left linkage rod can be fixed with the hinge shaft or the outer wall of the connecting cylinder, the sleeve is sleeved on the guide rod, the head end and the tail end of the left linkage rod are movably connected with the sleeve and the left clamping jaw, and the head end and the tail end of the right linkage rod are respectively movably connected with the sleeve and the right clamping jaw.

The timber lifting gripping apparatus for the crane further comprises a control unit, wherein the control unit comprises a mounting box, a hydraulic station arranged in the mounting box, a storage battery arranged in the mounting box and used for supplying power to the hydraulic station, a remote control signal receiving module used for controlling the hydraulic station to work and a remote controller, and the hydraulic station is connected with the clamping hydraulic cylinder through an oil pipe.

The beneficial effects of the utility model are as follows: according to the utility model, the two grabbing components can lift the wood through the two lifting points, the distance between the two grabbing components is adjusted through the length-adjustable cross rod, the effect of adjusting the distance between the two lifting points is achieved, an operator only needs to put down the utility model at the middle position of the wood, the problem of the gravity center of the wood is not needed to be considered too much, the stability of wood lifting is improved, the working efficiency is improved, the grabbing components are pulled to clamp the wood mainly by the gravity of the wood, and the wood can be prevented from falling off from the utility model under the condition that the clamping hydraulic cylinder fails.

Drawings

Fig. 1 and 2 are perspective views of the present utility model at different angles

Fig. 3 is a schematic cross-sectional view of a buffer assembly and a length-adjustable cross-bar of the present utility model.

Fig. 4 is a schematic structural view of the linkage of the present utility model.

Fig. 5 is a schematic view of the control unit and the grabbing component of the present utility model.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "leaf level," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 5, a timber lifting gripper for a crane according to a preferred embodiment of the present utility model includes a length-adjustable cross bar 10 and two gripping assemblies 20, the two gripping assemblies 20 are connected to the front end and the rear end of the length-adjustable cross bar 10, the length-adjustable cross bar 10 refers to an adjustable distance between the front end and the rear end of the length-adjustable cross bar 10, the length-adjustable cross bar 10 includes any one of a hydraulic cylinder, a telescopic rod or an electric control push rod, in this embodiment, the hydraulic cylinder is preferred, and by means of its length-adjustable function, the distance between the two gripping assemblies 20 of the present utility model can be adjusted, i.e. the distance between two lifting points can be adjusted, in specific use, an operator only needs to put down the present utility model at the middle position of the timber, without considering the problem of the center of gravity of the timber too much, and the working efficiency is improved.

In this embodiment, the two grabbing assemblies 20 are symmetrically disposed, however, in some embodiments, the two grabbing assemblies 20 may be disposed in the same direction, the grabbing assemblies 20 include a left clamping jaw 21, a right clamping jaw 22, a clamping hydraulic cylinder 23, a left hanging ring 24, a right hanging ring 25, a hanging ring 26, and a hinge shaft 27, the top of the left clamping jaw 21 and the top of the right clamping jaw 22 are hinged together by the hinge shaft 27, the left clamping jaw 21 and the right clamping jaw 22 are disposed opposite to each other, and define a clamping space for wood to enter, hooks are disposed at the bottom ends of the left clamping jaw 21 and the right clamping jaw 22, and the left clamping jaw 21 and the right clamping jaw 22 are configured to be capable of holding the wood.

The cylinder body 231 swing joint of the clamping hydraulic cylinder 23 is in the top of left clamping jaw 21, the piston rod 232 of the clamping hydraulic cylinder 23 with right clamping jaw 22 swing joint, so that through the clamping hydraulic cylinder 23 promotes right clamping jaw 22 to move towards left clamping jaw 21 direction, the effect of clamping hydraulic cylinder 23 is to adjust the distance between left clamping jaw 21 and the right clamping jaw 22, adjusts the size problem of clamping space promptly, makes things convenient for timber to get into clamping space and with timber preliminary clamp.

The left lifting ring 24 is installed at the top of the left clamping jaw 21, the right lifting ring 25 is installed at the top of the right clamping jaw 22, the left lifting ring 24 and the right lifting ring 25 are connected in series to the lifting ring 26, when the device is specifically used, a steel wire rope of a crane can be directly fixed with the lifting ring 26, the left lifting ring 24 and the right lifting ring 25 slide to be contacted together after the lifting ring is pulled up by the steel wire rope, and the right clamping jaw 22 can clamp wood towards the left clamping jaw 21 under the action of the gravity of the wood, and the falling of the wood can be prevented through the clamping hydraulic cylinder 23.

Specifically, in the present embodiment, the cylinder body 231 of the clamping hydraulic cylinder 23 is connected to the top of the left jaw 21 through a rotation shaft, and the piston rod 232 of the clamping hydraulic cylinder 23 is connected to the right jaw 22 through a rotation shaft.

It should be noted that the front and rear ends of the length-adjustable crossbar 10 are connected to the hinge shaft 27, and in this embodiment, the front and rear ends of the length-adjustable crossbar 10 are connected to the hinge shaft 27 through a buffer assembly 40,

the buffer assembly 40 comprises a connecting cylinder 41, a spring 42, a stop block 43 and a fixed disc 44, the fixed disc 44 is fixed at one end of the connecting cylinder 41 and is fixed with the hinge shaft 27, a connecting rod 45 is arranged in the cylinder at the other end of the connecting cylinder 41, the stop block 43 is arranged in the cylinder of the connecting cylinder 41 between the connecting rod 45 and the fixed disc 44, the spring 42 is arranged in the cylinder of the connecting cylinder 41, the head end and the tail end of the spring 42 are respectively connected with the fixed disc 44 and the stop block 43, the head end and the tail end of the length-adjustable cross rod 10 are respectively movably connected with the connecting rods 45 of the two buffer assemblies 40, the stop block 43 is contacted with the head end and the tail end of the length-adjustable cross rod 10, and the buffer assembly can maintain the angle between the grabbing assembly 20 and the length-adjustable cross rod 10 and can also play a role in preventing the length-adjustable cross rod 10 from breaking.

In order to ensure the synchronization of the right clamping jaw 22 and the clamping of the left clamping jaw 21, the wood lifting gripping apparatus for a crane further comprises a linkage 50, wherein the linkage 50 comprises a guide rod 51, a sleeve 52, a left linkage rod 53 and a right linkage rod 54, the left linkage rod 53 can be fixed with the hinge shaft 27 or the outer wall of the connecting cylinder 41, the sleeve 52 is sleeved on the guide rod 51, the front end and the rear end of the left linkage rod 53 are movably connected with the sleeve 52 and the left clamping jaw 21, and the front end and the rear end of the right linkage rod 54 are respectively movably connected with the sleeve 52 and the right clamping jaw 22 so as to drive the left clamping jaw 21 to act simultaneously when the right clamping jaw 21 is driven to act through a clamping hydraulic cylinder.

The wood lifting gripping apparatus for a crane further comprises a control unit 30, wherein the control unit comprises a mounting box 31, a hydraulic station 32 arranged in the mounting box 31, a storage battery 33 arranged in the mounting box 31 and used for supplying power to the hydraulic station, a remote control signal receiving module 34 used for controlling the hydraulic station 32 to work, and a remote controller (not shown in the figure), the hydraulic station is connected with the clamping hydraulic cylinder through an oil pipe, the oil pipe is not shown in the figure, and the remote control signal receiving module is matched with the remote controller in a conventional technology in the art.

The hydraulic station is a conventional art, and is a hydraulic source device including a hydraulic pump, a driving motor, a tank, a directional valve, a throttle valve, a relief valve, and the like, or a hydraulic device including a control valve. The hydraulic station is connected with the driving device (oil cylinder or motor) by an oil pipe, and the hydraulic system can realize various specified actions.

According to the utility model, the two grabbing components can lift the wood through the two lifting points, the distance between the two grabbing components is adjusted through the length-adjustable cross rod, the effect of adjusting the distance between the two lifting points is achieved, an operator only needs to put down the utility model at the middle position of the wood, the problem of the gravity center of the wood is not needed to be considered too much, the stability of wood lifting is improved, the working efficiency is improved, the grabbing components are pulled to clamp the wood mainly by the gravity of the wood, and the wood can be prevented from falling off from the utility model under the condition that the clamping hydraulic cylinder fails.

The embodiments of the present utility model and the accompanying drawings are only for illustrating the design concept of the present utility model, and the scope of the present utility model should not be limited to this embodiment.

From the above, it can be seen that the design object of the present utility model can be effectively implemented. Portions of the embodiments illustrate the objects of the utility model, as well as the functional and structural subject matter of the implementation, and include other equivalents and alternatives.

Therefore, the utility model is defined by the claims to include other equivalent implementations, with reference to the claims for the full scope of the claims.

Claims

1. The utility model provides a timber lifts by crane and lifts by crane gripping apparatus which characterized in that: including horizontal pole and two grabbing component with adjustable length, two grabbing component connect the head and the tail both ends of horizontal pole with adjustable length, grabbing component includes left clamping jaw, right clamping jaw, presss from both sides tight pneumatic cylinder, left rings, right rings, plays rings and articulated shaft, the top of left clamping jaw with the top of right clamping jaw is articulated together through the articulated shaft, left clamping jaw with right clamping jaw sets up in opposite directions, left rings are installed the top of left clamping jaw, right rings are installed the top of right clamping jaw, left rings, right rings concatenate play rings.

2. The timber lifting gripping apparatus for a crane according to claim 1, wherein a cylinder body of the clamping hydraulic cylinder is movably connected to the top of the left gripping jaw, and a piston rod of the clamping hydraulic cylinder is movably connected to the right gripping jaw.

3. The timber lifting gripping apparatus for a crane according to claim 2, wherein the cylinder body of the clamping hydraulic cylinder is connected with the top of the left gripping jaw through a rotating shaft, and the piston rod of the clamping hydraulic cylinder is connected with the right gripping jaw through a rotating shaft.

4. A timber lifting gripper for a crane according to claim 3, wherein the length adjustable cross bar is connected at the end-to-end ends to the hinge shaft.

5. A timber lifting gripper for a crane according to claim 3, wherein the head and tail ends of the length adjustable cross bar are connected with the hinge shaft through buffer components.

6. The wooden lifting gripping apparatus for a crane according to claim 5, wherein the buffer assembly comprises a connecting cylinder, a spring, a stop block and a fixed disc, the fixed disc is fixed at one end of the connecting cylinder and is fixed with the hinge shaft, a connecting rod is arranged in the cylinder at the other end of the connecting cylinder, the stop block is arranged in the connecting cylinder between the connecting rod and the fixed disc, the spring is arranged in the cylinder of the connecting cylinder, the head end and the tail end of the spring are respectively connected with the fixed disc and the stop block, the head end and the tail end of the length-adjustable cross rod are respectively movably connected with the connecting rods of the two buffer assemblies, and the stop block is contacted with the head end and the tail end of the length-adjustable cross rod.

7. The timber hoisting gripping apparatus for a crane according to claim 6, further comprising a linkage, wherein the linkage comprises a guide rod, a sleeve, a left linkage rod and a right linkage rod, the left linkage rod can be fixed with the hinge shaft or the outer wall of the connecting cylinder, the sleeve is sleeved on the guide rod, the sleeve is movably connected with the left clamping jaw at the front end and the rear end of the left linkage rod, and the front end and the rear end of the right linkage rod are movably connected with the sleeve and the right clamping jaw respectively.

8. The timber hoisting gripper for a crane according to claim 1, further comprising a control unit, wherein the control unit comprises a mounting box, a hydraulic station arranged in the mounting box, a storage battery arranged in the mounting box and used for supplying power to the hydraulic station, a remote control signal receiving module used for controlling the hydraulic station to work, and a remote controller, and the hydraulic station is connected with the clamping hydraulic cylinder through an oil pipe.