CN217078934U - Connecting mechanism for installing wood grabber of excavator - Google Patents

Abstract

The utility model relates to an engineering machine tool technical field's a coupling mechanism of excavator installation grapple ware, including linking arm, round pin axle, gyration support, grapple mount pad, tongs, ring groove, be equipped with the ear piece on the linking arm, the vertical guide post that is equipped with on the ear piece, sliding sleeve is equipped with the floating lever on the guide post, and the floating lever both ends respectively are equipped with a U-shaped fixture block, and the floating lever is supported its removal up of kicking part drive by elasticity for the defect position of U-shaped fixture block corresponds the block with ring groove. Drive the floating rod through elasticity support piece and move up for the defect position card of U-shaped fixture block is gone into in the ring groove of round pin axle, and then can carry out the axial spacing to the round pin axle, and then can install the round pin axle fast, need not to consume the longer time and carry out round pin axle installation operation, through setting up chromium-plated layer, make U-shaped fixture block surface wearability better, reduce its wearing and tearing, slide and spacing in the kidney slot through setting up the short round pin, make the floating rod can not break away from the guide post.

Description

Connecting mechanism for installing wood grabber of excavator

Technical Field

The utility model relates to an engineering machine tool technical field specifically is a coupling mechanism of excavator installation grapple ware.

Background

The wood grabber is one of excavator working devices, and the wood grabber is one of excavator working device accessories which are designed, researched and manufactured independently specially aiming at specific working requirements of an excavator.

The grapple among the prior art is connected through the dipper of round pin axle with the excavator, promptly, penetrate the pinhole of dipper with the round pin axle, install the grapple on the dipper, when round pin axle inserts the pinhole, need sell epaxial installation split pin, prevent that the round pin axle from running, the split pin is when the installation, need the workman to operate, need consume the split pin of installing for a long time on the one hand, the operating efficiency has been influenced, on the other hand the split pin is generally thinner, can produce after long-time the use and warp and lead to the phenomenon that can not normally use.

Based on this, the utility model designs an excavator installation grapple's coupling mechanism to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coupling mechanism of excavator installation grapple ware, be connected through the bucket rod of round pin axle with the excavator with the grapple ware in prior art who proposes in solving above-mentioned background art, namely, penetrate the pinhole of bucket rod with the round pin axle, with install the grapple ware on the bucket rod, when round pin axle inserts the pinhole, need install the split pin at the round pin epaxial installation, prevent that the round pin axle from running, the split pin when the installation, need the workman to operate, on the one hand need consume the longer time and install the split pin, the operating efficiency has been influenced, on the other hand split pin is generally thinner, can produce after long-time the use and warp and lead to the problem of the phenomenon that can not normally use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a coupling mechanism of excavator installation grapple ware, includes the linking arm of grapple ware, it wears to be equipped with two round pins to slide on the linking arm, be equipped with the gyration supporting seat on the linking arm, be connected with the grapple mount pad on the gyration supporting seat, be equipped with two tongs on the grapple mount pad, the both ends that the linking arm was worn out to the round pin axle respectively are equipped with round ring groove, be equipped with the ear piece on the linking arm, the vertical guide post that is equipped with on the ear piece, sliding sleeve is equipped with the floating lever on the guide post, the floating lever both ends respectively are equipped with a U-shaped fixture block, the floating lever is supported by elasticity and is moved up by ejector part drive its, makes the defect position and the ring groove of U-shaped fixture block correspond the block.

In the connecting mechanism for installing the wood grabber of the excavator, the elastic abutting piece is a spring sleeved on the guide post, and two ends of the spring in the elastic direction elastically abut against the floating rod and the lug block respectively.

In the connecting mechanism for installing the wood grabber of the excavator, the floating rod is provided with the short pin in a penetrating manner, and the guide column is provided with the kidney-shaped groove which is used for clamping the short pin and can freely slide up and down.

In the connecting mechanism for installing the wood grabber of the excavator, the chromium coating is arranged on the outer wall of the defective part of the U-shaped clamping block.

In the connecting mechanism for installing the grapple for the excavator, an installing arm is arranged on the grapple arm installing seat, a movable seat is pivoted on the installing arm, a hydraulic cylinder is installed on the movable seat, a movable block is connected onto a telescopic rod of the hydraulic cylinder, a movable arm is arranged on the gripper, and the movable arm is pivoted with the movable block.

Compared with the prior art, the beneficial effects of the utility model are that: drive the floating rod through elasticity support piece and move up for the defect position card of U-shaped fixture block is gone into in the ring groove of round pin axle, and then can carry out the axial spacing to the round pin axle, and then can install the round pin axle fast, need not to consume the longer time and carry out round pin axle installation operation, through setting up chromium-plated layer, make U-shaped fixture block surface wearability better, reduce its wearing and tearing, slide and spacing in the kidney slot through setting up the short round pin, make the floating rod can not break away from the guide post.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an assembly structure of the present invention;

FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;

fig. 3 is a schematic structural diagram of the middle pin shaft of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a gripper 1, a movable arm 2, a movable block 3, a hydraulic cylinder 4, a movable seat 5, a mounting arm 6, a U-shaped clamping block 7, a connecting arm 8, a pin shaft 9, a rotary supporting seat 10, a gripper arm mounting seat 11, a floating rod 12, a short pin 13, a guide post 14, a spring 15, a kidney-shaped groove 16, an ear block 17 and an annular clamping groove 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a connecting mechanism for installing a wood grabber of an excavator comprises a connecting arm 8 of the wood grabber, two pin shafts 9 are slidably arranged on the connecting arm 8 in a penetrating manner, a rotary supporting seat 10 is arranged on the connecting arm 8, a grabbing arm mounting seat 11 is connected onto the rotary supporting seat 10, two grippers 1 are arranged on the grabbing arm mounting seat 11, a circle of annular clamping groove 18 is respectively arranged at two ends, penetrating out of the connecting arm 8, of the pin shafts 9, ear blocks 17 are arranged on the connecting arm 8, guide columns 14 are vertically arranged on the ear blocks 17, floating rods 12 are slidably sleeved on the guide columns 14, U-shaped clamping blocks 7 are respectively arranged at two ends of the floating rods 12, the floating rods 12 are driven to move upwards by elastic propping pieces, the defect parts of the U-shaped clamping blocks 7 are correspondingly clamped with the annular clamping grooves 18, the connecting arm is aligned with a bucket rod of an external excavator, the pin shafts penetrate into the connecting arm and then penetrate out of the bucket rod, the connecting arm is exposed out of two ends of the pin shafts, the connecting arm is driven to move upwards by the elastic propping pieces, the defect part of the U-shaped clamping block is clamped into the annular clamping groove, so that the pin shaft can be axially limited, and the pin shaft can be rapidly installed.

The elastic abutting piece in the embodiment is a spring 15 sleeved on the guide post 14, two ends of the spring 15 in the elastic direction respectively elastically abut against the floating rod 12 and the lug block 17, when the pin shaft is installed, the floating rod 12 is firstly pressed downwards, the floating rod 12 overcomes the elastic force of the spring 15 and moves downwards, then the pin shaft penetrates into the connecting arm, then the floating rod 12 is loosened, the spring generates elastic abutting force on the floating rod, and further the floating rod moves upwards, so that the defect part of the U-shaped clamping block is clamped into the annular clamping groove.

In this embodiment, the floating rod 12 is provided with a short pin 13, the guide post 14 is provided with a kidney-shaped groove 16 for the short pin 13 to engage with and freely slide up and down, and the floating rod 12 cannot be separated from the guide post by the short pin sliding in the kidney-shaped groove and limiting.

The outer wall of the defective part of the U-shaped fixture block 7 in this embodiment is provided with a chromium coating (not shown in the figure), and the chromium coating prevents the U-shaped fixture block from being worn quickly when the defective part of the U-shaped fixture block is clamped with the pin shaft.

Be equipped with installation arm 6 on the grab arm mount pad 11 in this embodiment, the pin joint has sliding seat 5 on the installation arm 6, install pneumatic cylinder 4 on the sliding seat 5, be connected with movable block 3 on pneumatic cylinder 4's the telescopic link, be equipped with movable arm 2 on the tongs 1, movable arm 2 and the 3 pin joints of movable block, when using the tongs to snatch, start through pneumatic cylinder 4, make the telescopic link extension of pneumatic cylinder, and then the drive movable block moves down, and can drive movable arm 2 and drive the tongs upset down, make two tongs draw close and snatch.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (5)

1. A connecting mechanism for installing a wood grapple on an excavator comprises a connecting arm (8) of the wood grapple, two pin shafts (9) are slidably arranged on the connecting arm (8) in a penetrating way, a rotary supporting seat (10) is arranged on the connecting arm (8), the rotary supporting seat (10) is connected with a grabbing arm mounting seat (11), two grabbing hands (1) are arranged on the grabbing arm mounting seat (11), it is characterized in that two ends of the pin shaft (9) penetrating through the connecting arm (8) are respectively provided with a circle of annular clamping groove (18), an ear block (17) is arranged on the connecting arm (8), a guide post (14) is vertically arranged on the ear block (17), a floating rod (12) is slidably sleeved on the guide post (14), two ends of the floating rod (12) are respectively provided with a U-shaped clamping block (7), the floating rod (12) is driven by the elastic propping piece to move upwards, so that the defective part of the U-shaped clamping block (7) is correspondingly clamped with the annular clamping groove (18).

2. The connecting mechanism for the installation of the grapple for the excavator according to claim 1, wherein the elastic abutting piece is a spring (15) sleeved on the guide post (14), and two ends of the spring (15) in the elastic direction elastically abut against the floating rod (12) and the lug block (17) respectively.

3. The connecting mechanism for the installation of the grapple for the excavator according to claim 1, wherein the floating rod (12) is provided with a short pin (13) in a penetrating way, and the guide column (14) is provided with a kidney-shaped groove (16) which is used for clamping the short pin (13) and can freely slide up and down.

4. The connecting mechanism for the installation of the grapple for the excavator according to claim 1, wherein the outer wall of the defective part of the U-shaped fixture block (7) is provided with a chromium coating.

5. The connecting mechanism for the installed grapple of the excavator according to claim 1, wherein the installing arm (6) is arranged on the grapple arm installing seat (11), the installing arm (6) is pivoted with the movable seat (5), the movable seat (5) is provided with the hydraulic cylinder (4), the telescopic rod of the hydraulic cylinder (4) is connected with the movable block (3), the grab handle (1) is provided with the movable arm (2), and the movable arm (2) is pivoted with the movable block (3).

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