CN217759009U - Thumb clamp adjusting structure of excavator - Google Patents

Abstract

The application relates to the technical field of excavators, especially relate to an excavator thumb presss from both sides and adjusts structure: the novel bucket-type telescopic arm comprises a small arm, a bucket and a thumb clamp, wherein the bucket is arranged at the front end of the small arm in a hinged structure mode, the thumb clamp is arranged on the lower end face of the small arm in a hinged structure mode, an ear plate seat is arranged on the lower end face of the small arm in a fixed structure and is positioned on the rear side of a hinged joint of the thumb clamp and the small arm, a sliding groove is formed in the inner wall of the ear plate seat, a sleeve is arranged in the sliding groove in a sliding fit mode, and a preset number of through holes are formed in the sliding groove; the rear end of the supporting rod is connected with the sleeve in a fixed structure mode, and the front end of the supporting rod is connected with the thumb clamp in a hinged structure; the adjusting pin shaft can be inserted into the through hole and the sleeve to fix the rear end of the supporting rod; the opening and closing angle of the thumb clamp is adjusted through the mechanical structure, a hydraulic oil circuit does not need to be redesigned, the structure is firmer, and the cost is lower.

Description

Thumb clamp adjusting structure of excavator

The technical field is as follows:

the application relates to the technical field of excavators, in particular to a thumb clamp adjusting structure of an excavator.

Background art:

the cooperation of the thumb clamp and the bucket has advantages on the grabbing of small-sized woods, rod-shaped objects and strips. The method is suitable for most of operation environment requirements of municipal construction, secondary demolition, mines and the like.

At present, the thumb presss from both sides for the adaptation uses different work condition environment, needs to press from both sides the angle that opens and shuts to the thumb and adjusts, and current regulation mode has two kinds: one is to directly control the opening and closing angle of the thumb clamp through a hydraulic oil cylinder, and has the defects that a hydraulic oil path needs to be re-planned, the manufacturing cost is high, and the thumb clamp is not required to be operated all the time under all working conditions; the other type is that an adjusting hole is reserved on the ear plate seat, one-time adjustment is completed according to the working condition requirement, the defect is that one hand is needed to lift the thumb clamp during operation, the other hand is needed to install the pin shaft, and the thumb clamp is made of a steel plate, so that the weight is heavy, the labor intensity of personnel is increased, and the pin shaft is difficult to install and position.

The utility model has the following contents:

in order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides an excavator thumb presss from both sides regulation structure, includes forearm, bucket and thumb clamp, and the bucket sets up at the forearm front end with hinge structure mode, and the thumb clamp is installed terminal surface under the forearm with hinge structure mode, and excavator thumb presss from both sides regulation structure still includes:

the ear plate seat is arranged on the lower end face of the forearm in a fixed structure and is positioned at the rear side of a hinged joint of the thumb clamp and the forearm, a sliding groove is formed in the inner wall of the ear plate seat, a sleeve is arranged in the sliding groove in a sliding fit mode, and a preset number of through holes are formed in the sliding groove;

the rear end of the supporting rod is connected with the sleeve in a fixed structure mode, and the front end of the supporting rod is connected with the thumb clamp in a hinged structure;

and the adjusting pin shaft can be inserted into the through hole and the sleeve to fix the rear end of the supporting rod.

Furthermore, the otic placode seat includes the connecting plate, and the connecting plate bilateral symmetry is provided with the riser, and the spout is seted up at the riser inner wall, and the through-hole runs through the setting along riser thickness direction.

Further, the number of the through holes is 3.

Furthermore, a reinforcing panel is arranged on the outer vertical surface of the vertical plate, and the reinforcing panel is provided with a pin hole matched with the through hole.

Further, the sleeve and the pin hole are respectively matched with the adjusting pin shaft in an interference structure direction.

Furthermore, round platform blocks are fixedly arranged at the two ends of the adjusting pin shaft.

The utility model has the advantages that: according to different working condition requirements, the opening and closing angle of the thumb clamp is adjusted through a mechanical structure, a hydraulic oil circuit does not need to be redesigned, the structure is firmer, and the cost is lower; through set up the sleeve on the bracing piece, the sleeve can slide along the spout, has restricted its home range, improves the efficiency of adjusting the mounting of pintle to utilize the bucket to lift the thumb clamp, saved the manpower, the installation adjustment is simpler, convenient.

Description of the drawings:

fig. 1 is a schematic perspective view of the present invention.

In the figure:

1. the device comprises a small arm, 2, a bucket, 3, a thumb clamp, 4, an ear plate seat, 41, a sliding groove, 42, a connecting plate, 43, a vertical plate, 5, a sleeve, 6, a through hole, 7, a supporting rod, 8, an adjusting pin shaft, 9, a reinforcing panel, 10, a pin hole, 11 and a circular truncated cone block.

The specific implementation mode is as follows:

for the purpose, technical solution and advantages of the present invention to be more clear, it is now clear to refer to the attached drawings and the following examples to describe the present invention in further detail, so that the public can better master the method of implementing the present invention, the specific embodiments of the present invention are:

the utility model provides an excavator thumb presss from both sides and adjusts structure, includes forearm 1, bucket 2 and thumb clamp 3, and bucket 2 sets up at forearm 1 front end with the hinge structure mode, and thumb clamp 3 installs terminal surface under forearm 1 with the hinge structure mode, and excavator thumb presss from both sides and adjusts structure still includes: the earflap seat 4, earflap seat 4 set up terminal surface under forearm 1 with fixed knot structure, and earflap seat 4 is located the thumb clamp 3 and 1 pin joint rear side of forearm, and spout 41 has been seted up to 4 inner walls of earflap seat, is provided with sleeve 5 with sliding fit mode in the spout 41, has seted up the through-hole 6 of predetermineeing quantity in the spout 41. The opening and closing angle of the thumb clamp 3 is adjusted through a mechanical structure, a hydraulic oil way does not need to be redesigned, the structure is firmer, and the cost is lower;

the rear end of the support rod 7 is connected with the sleeve 5 in a fixed structure mode, and the front end of the support rod 7 is connected with the thumb clamp 3 in a hinged structure. Through set up sleeve 5 on bracing piece 7, sleeve 5 can slide along spout 41, has restricted its home range, improves the efficiency of adjusting pin 8 installation to utilize bucket 2 to lift thumb clamp 3, saved the manpower, the installation adjustment is simple more, convenient.

Adjusting pin 8, adjusting pin 8 can alternate in through-hole 6 and sleeve 5, fixes bracing piece 7 rear end.

It should be noted that the sleeve 5 and the pin hole 10 are respectively matched with the adjusting pin shaft 8 in an interference structure direction, so that the adjusting pin shaft 8 is prevented from retreating in the sleeve 5 and the pin hole 10 during long-time work; in other embodiments, the two ends of the adjusting pin 8 are fixedly provided with the circular truncated cone blocks 11, and the adjusting pin 8 is more easily installed in the sleeve through the tapered circular truncated cone side surface.

Specifically, otic placode seat 4 includes connecting plate 42, and connecting plate 42 bilateral symmetry is provided with riser 43, and spout 41 is seted up at riser 43 inner wall, and through-hole 6 runs through the setting along riser 43 thickness direction, and in this embodiment, 6 quantity of through-hole are 3, can adjust 3 gears.

It should be noted that, the outer vertical surface of the vertical plate 43 is provided with a reinforcing panel 9, the reinforcing panel 9 is provided with a pin hole 10 matched with the through hole 6, and the reinforcing panel 9 can reinforce the stress strength of the vertical plate 43 and prevent the through hole 6 from being torn.

The utility model discloses a theory of operation and working process as follows: when the opening and closing angle of the thumb clamp 7 needs to be adjusted, the adjusting pin shaft 8 is thrown out from the pin hole 10 and the sleeve 5 by using a tool, the lower end face of the thumb clamp 7 is lifted by the bucket 2, one end of the thumb clamp 7 rotates around a hinged point, the sleeve 5 at the upper end of the supporting rod 7 is driven to slide in the chute 41, when the thumb clamp reaches another through hole 6, the lifting is stopped, and the adjusting pin shaft 8 penetrates through the pin hole 10, the through hole 6 and the sleeve 5, so that the adjusting work is completed.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "front", "back", "left lower", "right upper", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. While the invention has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this description, will appreciate that other embodiments can be devised which do not depart from the scope of the invention as described herein.

Claims (6)

1. The utility model provides an excavator thumb presss from both sides adjusts structure, includes forearm (1), bucket (2) and thumb clamp (3), and bucket (2) set up at forearm (1) front end with hinge structure mode, and the thumb presss from both sides (3) and installs terminal surface under forearm (1) with hinge structure mode, and its characterized in that, excavator thumb clamp adjust the structure and still include:

the ear plate seat (4) is arranged on the lower end face of the forearm (1) in a fixed structure, the ear plate seat (4) is located on the rear side of a hinge joint of the thumb clamp (3) and the forearm (1), a sliding groove (41) is formed in the inner wall of the ear plate seat (4), a sleeve (5) is arranged in the sliding groove (41) in a sliding fit mode, and a preset number of through holes (6) are formed in the sliding groove (41);

the rear end of the supporting rod (7) is connected with the sleeve (5) in a fixed structure mode, and the front end of the supporting rod (7) is connected with the thumb clamp (3) in a hinged structure;

adjusting pin axle (8), adjusting pin axle (8) can alternate in through-hole (6) and sleeve (5), fixes bracing piece (7) rear end.

2. The excavator thumb clamp adjustment mechanism of claim 1 wherein: the ear plate seat (4) comprises a connecting plate (42), vertical plates (43) are symmetrically arranged on two sides of the connecting plate (42), the inner walls of the vertical plates (43) are arranged in the sliding grooves (41), and the through holes (6) penetrate through the vertical plates (43) in the thickness direction.

3. The excavator thumb clamp adjustment mechanism of claim 2 wherein: the number of the through holes (6) is 3.

4. The excavator thumb clamp adjustment mechanism of claim 2 wherein: the outer vertical surface of the vertical plate (43) is provided with a reinforcing panel (9), and the reinforcing panel (9) is provided with a pin hole (10) matched with the through hole (6).

5. The excavator thumb clamp adjustment mechanism of claim 1 further comprising: the sleeve (5) and the pin hole (10) are respectively matched with the adjusting pin shaft (8) in an interference structure direction.

6. The excavator thumb clamp adjustment mechanism of claim 5 wherein: round platform blocks (11) are fixedly arranged at the two ends of the adjusting pin shaft (8).

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