CN217537138U

CN217537138U - Small excavator with lower chassis counterweight

Info

Publication number: CN217537138U
Application number: CN202220966890.1U
Authority: CN
Inventors: 刘德利; 赵斌英
Original assignee: Jining Kaidiwo Heavy Industry Technology Co ltd
Current assignee: Jining Kaidiwo Heavy Industry Technology Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-10-04
Anticipated expiration: 2032-04-25

Abstract

The utility model discloses a chassis counter weight formula miniexcavator down, including chassis main part down, the track roof beam is all installed to chassis main part's both sides down, the joint has the balancing weight in the chassis main part down, installs the joint otic placode of two mutual symmetries on the balancing weight, install the joint piece of two mutual symmetries in the chassis main part down, all seted up the slide opening on joint piece and the joint otic placode, slidable mounting has fixing bolt in the slide opening, set up the positioning screw hole with fixing bolt looks adaptation in the chassis main part down, fixing bolt passes the slide opening on joint otic placode and the joint piece and installs in the positioning screw hole, the utility model discloses in, through installing the balancing weight on chassis down to the weight on chassis has been reduced, makes the chassis rotate more in a flexible way, and has reduced the oil consumption, has increased the weight on chassis simultaneously, further increased the stability of excavator.

Description

Small excavator with lower chassis counterweight

Technical Field

The utility model relates to an excavator technical field especially relates to a lower chassis counter weight formula mini-excavator.

Background

The chassis of the excavator is used for mounting a crawler traveling system and supporting the body of the excavator. The excavator chassis comprises an underframe and crawler beams positioned on two sides of the underframe, the crawler beams are used for mounting parts such as a walking motor, a guide wheel, a supporting chain wheel and a crawler, and the underframe is provided with a slewing bearing used for being connected with an excavator body.

Most of the existing excavators are provided with counterweights on an upper chassis, so that the upper chassis has heavy weight, inflexible rotation and high oil consumption, and therefore a small excavator with the counterweights on a lower chassis is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lower chassis counter weight formula miniexcavator to solve the current excavator that proposes in the above-mentioned background art and all install the counter weight on last chassis mostly, lead to chassis weight great, rotate the inflexibility, and the higher problem of oil consumption.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a lower chassis counter weight formula miniexcavator, includes lower chassis main part, the track roof beam is all installed to the both sides of lower chassis main part, the joint has the balancing weight in the lower chassis main part, installs the joint otic placode of two mutual symmetries on the balancing weight, install the joint piece of two mutual symmetries in the lower chassis main part, all seted up the slide opening on joint piece and the joint otic placode, slidable mounting has fixing bolt in the slide opening, set up the positioning screw hole with fixing bolt looks adaptation in the lower chassis main part, fixing bolt passes the slide opening on joint otic placode and the joint piece and installs in the positioning screw hole.

Preferably, the chassis body has seted up the transmission chamber down on, and the rolling disc is installed in the rotation of transmission intracavity, rotates on the rolling disc and installs two transfer lines, all rotates on two transfer lines and installs the connecting block, and two connecting blocks are installed respectively on flexible piece, and two flexible pieces are installed respectively on two track beams.

Preferably, the inner wall of the transmission cavity is provided with a rotating hole, and a rotating shaft is rotatably arranged in the rotating hole.

Preferably, the rotating shaft is installed on the rotating disc, and the rotating shaft is provided with an inner hexagonal slot.

Preferably, the transmission rod is provided with two symmetrical rotating mounting holes, the rotating disc is provided with two driving rotating shafts, and the two driving rotating shafts are respectively rotatably mounted in the rotating mounting holes at the ends, close to each other, of the two transmission rods.

Preferably, two all install driven rotating shaft on the connecting block, two driven rotating shaft rotate respectively and install in the rotation mounting hole of keeping away from one end each other at two transfer lines.

Preferably, two mutually symmetrical sliding grooves are formed in the transmission cavity, and the two telescopic blocks are respectively slidably mounted in the two sliding grooves.

The beneficial effects of the utility model are that:

the utility model discloses in, through installing the balancing weight on the underpan to reduced the weight on last chassis, made the chassis rotate more in a flexible way, and reduced the oil consumption, increased the weight on underpan simultaneously, further increased the stability of excavator.

Drawings

Fig. 1 is a schematic structural view of a lower chassis counterweight type mini-excavator provided by the utility model;

fig. 2 is a schematic side view of a cross-sectional structure of a lower chassis main body of a lower chassis counterweight type mini excavator according to the present invention;

fig. 3 is an enlarged schematic view of a structure at a position a in fig. 2 of the lower chassis counterweight type mini-excavator provided by the present invention;

fig. 4 is a schematic top view of a cross-sectional structure of a lower chassis main body of a lower chassis counterweight mini excavator according to the present invention;

fig. 5 is the utility model provides a side view section structure sketch map of rotating disc of lower chassis counter weight formula mini-excavator.

In the figure: 1. a lower chassis main body; 2. a track beam; 3. a balancing weight; 4. clamping the lug plate; 5. a clamping block; 6. a telescopic block; 7. a sliding groove; 8. fixing the bolt; 9. positioning the threaded hole; 10. a slide hole; 11. a transmission cavity; 12. a transmission rod; 13. connecting blocks; 14. a driven shaft; 15. rotating the mounting hole; 16. a driving rotating shaft; 17. rotating the disc; 18. hole turning; 19. a rotating shaft; 20. a hexagon socket.

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.

Referring to fig. 1-5, a chassis counterweight type mini excavator comprises a chassis main body 1, crawler beams 2 are installed on two sides of the chassis main body 1, a counterweight 3 is connected to the chassis main body 1 in a clamping manner, two clamping lug plates 4 which are symmetrical to each other are installed on the counterweight 3, two clamping blocks 5 which are symmetrical to each other are installed on the chassis main body 1, slide holes 10 are formed in the clamping blocks 5 and the clamping lug plates 4, fixing bolts 8 are slidably installed in the slide holes 10, positioning threaded holes 9 which are matched with the fixing bolts 8 are formed in the chassis main body 1, the fixing bolts 8 penetrate through the clamping lug plates 4 and the slide holes 10 in the clamping blocks 5 to be installed in the positioning threaded holes 9, the weight of an upper chassis is reduced by installing the counterweight 3 on the chassis main body 1, the upper chassis rotates more flexibly, the oil consumption is reduced, the weight of the chassis main body 1 is increased at the same time, the stability of the excavator is further increased, and the clamping lug plates 4 and the clamping blocks 5 are matched with each other through the clamping lugs, so that the counterweight 3 is convenient to install and dismantle.

Referring to fig. 4-5, the utility model discloses in, transmission chamber 11 has been seted up on lower chassis main part 1, carousel 17 is installed to the 11 internal rotations in transmission chamber, rotate on the carousel 17 and install two transfer lines 12, all rotate on two transfer lines 12 and install connecting block 13, two connecting blocks 13 are installed respectively on flexible piece 6, two flexible pieces 6 are installed respectively on two track roof beams 2, thereby carousel 17 through being equipped with, thereby transfer line 12 and flexible piece 6 mutually support and have reached and have driven two transfer lines 12 through carousel 17 and rotate, and then promote two flexible pieces 6 through two transfer lines 12 and be close to each other or keep away from each other, thereby drive two track roof beams 2 and be close to each other or keep away from each other, thereby reached the mesh of adjusting the interval between the track roof beam 2.

Referring to fig. 4-5, in the present invention, the inner wall of the transmission cavity 11 is provided with a rotation hole 18, a rotation shaft 19 is rotatably installed in the rotation hole 18, and the rotation shaft 19 can rotate along the rotation hole 18 by the mutual cooperation of the rotation hole 18 and the rotation shaft 19.

Referring to fig. 4-5, in the present invention, the rotation axis 19 is installed on the rotation disc 17, and the inner hexagonal socket 20 is opened on the rotation axis 19, and through the inner hexagonal socket 20 provided, the outer hexagonal wrench can be inserted into the inner hexagonal socket 20 to drive the rotation axis 19 to rotate, and further drive the rotation disc 17 to rotate.

Referring to fig. 4-5, in the utility model, two rotation mounting holes 15 that are symmetrical each other are seted up on the transfer line 12, install two initiative pivots 16 on the rolling disc 17, and two initiative pivots 16 rotate respectively and install in the rotation mounting hole 15 that two transfer lines 12 are close to one end each other, through the initiative pivot 16 that is equipped with mutually supporting with rotation mounting hole 15 to accessible rolling disc 17 drives two transfer lines 12 and rotates along initiative pivot 16.

Referring to fig. 4-5, in the utility model, all install driven spindle 14 on two connecting blocks 13, two driven spindles 14 rotate respectively and install in the rotation mounting hole 15 of keeping away from one end each other of two transfer lines 12, through driven spindle 14 that is equipped with to make transfer line 12 can rotate along driven spindle 14, and promote connecting block 13, and then drive flexible piece 6 and slide.

Referring to fig. 4-5, in the utility model, two mutually symmetrical sliding grooves 7 are opened in the transmission cavity 11, two flexible pieces 6 are respectively slidably mounted in two sliding grooves 7, through mutually supporting of sliding groove 7 and flexible piece 6 that are equipped with to make flexible piece 6 slide along sliding groove 7, and then reached and carried out spacing and the purpose of direction to flexible piece 6's removal reversal.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a lower chassis counter weight formula miniexcavator, includes lower chassis main part (1), its characterized in that: crawler beam (2) are all installed to the both sides of chassis main part (1) down, the joint has balancing weight (3) on chassis main part (1) down, installs joint otic placode (4) of two mutual symmetries on balancing weight (3), install joint piece (5) of two mutual symmetries on chassis main part (1) down, sliding hole (10) have all been seted up on joint piece (5) and joint otic placode (4), and slidable mounting has fixing bolt (8) in sliding hole (10), set up positioning screw hole (9) with fixing bolt (8) looks adaptation on chassis main part (1) down, fixing bolt (8) pass joint otic placode (4) and sliding hole (10) on joint piece (5) and install in positioning screw hole (9).

2. The under chassis counter weight mini-excavator of claim 1 wherein: the lower chassis is characterized in that a transmission cavity (11) is formed in the lower chassis body (1), a rotating disc (17) is installed in the transmission cavity (11) in a rotating mode, two transmission rods (12) are installed on the rotating disc (17) in a rotating mode, connecting blocks (13) are installed on the two transmission rods (12) in a rotating mode, the two connecting blocks (13) are installed on the telescopic blocks (6) respectively, and the two telescopic blocks (6) are installed on the two crawler beams (2) respectively.

3. The lower chassis counterweight mini-excavator of claim 2, wherein: the inner wall of the transmission cavity (11) is provided with a rotary hole (18), and a rotary shaft (19) is rotatably arranged in the rotary hole (18).

4. The lower chassis counterweight mini-excavator of claim 3, wherein: the rotating shaft (19) is installed on the rotating disc (17), and the rotating shaft (19) is provided with an inner hexagonal slot (20).

5. The lower chassis counterweight mini-excavator of claim 2, wherein: two symmetrical rotating mounting holes (15) are formed in the transmission rod (12), two driving rotating shafts (16) are mounted on the rotating disc (17), and the two driving rotating shafts (16) are respectively rotatably mounted in the rotating mounting holes (15) at the ends, close to one end of the transmission rod (12), of the two transmission rods.

6. The lower chassis counterweight mini-excavator of claim 2, wherein: two all install driven rotating shaft (14) on connecting block (13), two driven rotating shaft (14) rotate respectively and install in the rotation mounting hole (15) of keeping away from one end each other in two transfer lines (12).

7. The lower chassis counterweight mini-excavator of claim 2, wherein: two symmetrical sliding grooves (7) are formed in the transmission cavity (11), and the two telescopic blocks (6) are respectively installed in the two sliding grooves (7) in a sliding mode.