阅读说明：本技术 履带式挖掘机 (Crawler-mounted excavator ) 是由 郭伟福 林深才 赵锋 彭兴德 李香龙 于 2019-08-27 设计创作，主要内容包括：本发明涉及履带式挖掘机,为解决现有履带式挖掘机的底架上会堆积淤泥的问题,提供一种履带式挖掘机,包括上部车身和下部车身,下部车身的底盘包括底架以及安装在底架两侧的履带梁,底架顶部的中部设置有支承圆筒,支承圆筒的顶部安装有回转支承；上部车身包括与回转支承连接的回转平台；其特征在于所述回转平台上安装有向下伸向支承圆筒外侧、底架上方空间的淤泥刮板。在本发明中,上部车身相对下部车身做回转动作时,位于支承圆筒旁侧、底架上方空间的淤泥刮板铲刮着底架上的淤泥,避免淤泥堆积过多而造成不利影响。(The present invention relates to crawler-mounted excavators, mud can be accumulated on chassis to solve the problems, such as existing crawler-mounted excavator, a kind of crawler-mounted excavator is provided, including upper body and lower body, the chassis of lower body includes chassis and the track beam for being mounted on chassis two sides, middle part at the top of chassis is provided with supporting cylinder, is equipped with pivoting support at the top of supporting cylinder；Upper body includes the revolving platform connecting with pivoting support；It is characterized in that being equipped with the mud scraper plate for stretching to supporting cylinder outside, chassis upper space downwards on the revolving platform.In the present invention, when upper body opposing lower portions vehicle body does revolution movement, the mud scraper plate shovel positioned at supporting cylinder side, chassis upper space scrapes the mud on chassis, avoids mud accumulation excessive and adversely affects.)

1. a kind of crawler-mounted excavator, including upper body and lower body, the chassis of lower body includes chassis and installation Track beam in chassis two sides, the middle part at the top of chassis are provided with supporting cylinder, are equipped with pivoting support at the top of supporting cylinder； Upper body includes the revolving platform connecting with pivoting support；Branch is stretched to downwards it is characterized in that being equipped on the revolving platform It holds on the outside of cylinder, the mud scraper plate of chassis upper space.

2. crawler-mounted excavator according to claim 1, it is characterised in that the mud scraper plate is made of elastic plate.

3. crawler-mounted excavator according to claim 1, it is characterised in that the mud scraper plate is made of rigid sheet.

4. crawler-mounted excavator according to any one of claim 1 to 3, it is characterised in that the mud scraper plate is in side Shape, the upper end are fixed on the bottom of the revolving platform, and lower end extends vertically downward.

5. crawler-mounted excavator according to any one of claim 1 to 3, it is characterised in that the mud scraper plate is in lath Shape, one end of which is fixed in shaft, the shaft and the revolving platform are rotatablely connected, and the other end of the mud scraper plate is with turning The positive and negative rotation of axis and the space between chassis and revolving platform is swung up and down, be equipped on revolving platform and the shaft The pushing meanss for connecting and it being pushed to rotate.

6. crawler-mounted excavator according to claim 5, it is characterised in that the pushing meanss include that one end and revolution are flat The hydraulic cylinder that table-hinges connects, the push arm in the other end and the shaft is hinged, the hydraulic cylinder by the road with control valve and dig The pressure oil-source of pick machine connects.

7. crawler-mounted excavator according to claim 5, it is characterised in that the pushing meanss are output end and described turn The control switch of control motor forward/backward rotation is provided on the connection circuit of the motor of axis connection, the motor and power supply.

8. crawler-mounted excavator according to claim 5, it is characterised in that the pushing meanss include one end and described turn The flexible axle that push arm connects on axis and the control crank being connect with the flexible axle other end.

9. the crawler-mounted excavator according to any one of claim 6 to 8, it is characterised in that the shaft and pushing meanss It is mounted on the bottom surface of the revolving platform.

10. the crawler-mounted excavator according to any one of claim 6 to 8, it is characterised in that the shaft and promotion dress The upper bottom surface for being mounted on the revolving platform is set, the strip rotated down for the mud scraper plate is provided on the revolving platform Shape avoid holes.

Technical field

The present invention relates to a kind of excavators, more specifically to a kind of crawler-mounted excavator.

Background technique

Crawler-mounted excavator includes upper body and lower body, and lower body includes chassis and travel driving system, bottom Disk includes chassis and the track beam for being mounted on chassis two sides, hydraulic motor and guide wheel, crawler belt, the Zhi Chong of travel driving system The installation track beams such as wheel, support sprocket wheel.The top of chassis is in platform-like, is provided with supporting cylinder, the top of supporting cylinder in the middle Portion is equipped with pivoting support.Upper body includes revolving platform and the driver's cabin on installation revolving platform, dynamical system, work The components such as device.Revolving platform is fixedly connected with pivoting support, to realize that upper body is pivotally mounted on lower body. It is provided with butter pond in pivoting support, is lubricated to pivoting support.

Hydraulic crawler excavator operating condition is relatively severe, especially rainy season when operation, can be adhered to when excavator is walked, on crawler belt A large amount of mud, when mud is moved to the upside of track beam with crawler belt, mud be possible to can because the reasons such as vibration from crawler belt On fall off drop-down and fall within the chassis top surface with track beam junction.With the increase of excavator operating time, mud is herein Place's accumulation is more, if clearing up not in time, may block pivoting support butter mouth, influences normal lubricating maintenance, while a large amount of Mud also influence whether the normal works of the support components such as sprocket wheel, cause component wear, reduce component service life.For walking Mud on frame, at present can only be by manually being cleared up, not only low efficiency, but also causes the complaint of client.And if for a long time It does not clear up, will increase the cleaning difficulty of mud after mud hardening.

Summary of the invention

The technical problem to be solved by the present invention is to aiming at the problem that can accumulate mud on the chassis of existing crawler-mounted excavator, And a kind of crawler-mounted excavator is provided, the mud on chassis can be removed when portion's vehicle body turns round on board a dredger, avoid mud the bottom of at It is accumulated on frame too many and blocking pivoting support butter mouth and mud influences the normal work of the components such as support sprocket wheel.

The present invention is to realize that the technical solution of its purpose is such that provide a kind of crawler-mounted excavator, including top vehicle Body and lower body, the chassis of lower body include chassis and the track beam for being mounted on chassis two sides, the middle part at the top of chassis It is provided with supporting cylinder, pivoting support is installed at the top of supporting cylinder；Upper body includes the revolution connecting with pivoting support Platform；It is characterized in that be equipped on the revolving platform stretch on the outside of supporting cylinder downwards, the mud of chassis upper space is scraped Plate.In the present invention, when upper body opposing lower portions vehicle body does revolution movement, it is located at supporting cylinder side, chassis upper space Mud scraper plate shovel scrape mud on chassis, avoid mud accumulation excessive and adversely affect.

Further, in above-mentioned crawler-mounted excavator, the mud scraper plate is made of elastic plate, for example, with rubber slab or Person's spring steel plate is made, when scrape mud resistance it is too big when, mud scraper plate flexible deformation and cross, in next time by being to shovel again at this Mud or the mud scraper plate at this is scraped to be made of rigid sheet.

Further, in above-mentioned crawler-mounted excavator, the mud scraper plate is square, and it is flat that the upper end is fixed on the revolution The bottom of platform, lower end extend vertically downward, if lower edge also according to chassis top surface shape and tilt or be bent, make bottom Side is minimum with distance everywhere in chassis top surface everywhere, reaches mud shovel and scrapes optimum efficiency.Excavator upper body opposing lower portions When vehicle body rotates, chassis top surface accumulation can be more than that the mud of certain altitude strikes off by mud scraper plate, to avoid table on chassis Mud accumulation in face is too many and adversely affects.

Further, in above-mentioned crawler-mounted excavator or the mud scraper plate be in lath-shaped, one end of which is fixed on shafts On, the shaft and the revolving platform are rotatablely connected, the other end (free end) of the mud scraper plate with shaft positive and negative rotation It is dynamic and the space between chassis and revolving platform is swung up and down, it is equipped on revolving platform and connect and push with the shaft Its pushing means rotated.When needing to carry out mud to strike off, shaft rotation is pushed by control pushing meanss, to make mud The free end of scraper plate drops to the position close to chassis top surface, so that when upper body rotates, mud scraper plate is struck off on chassis Mud.When not having mud on chassis, then mud scraper plate is rotated up when controlling pushing meanss, and mud scraper plate is closed at bottom plate bottom Portion.

Wherein the pushing meanss include that hinged one end and revolving platform, the push arm in the other end and the shaft are hinged Hydraulic cylinder, the hydraulic cylinder are connect with the pressure oil-source of control valve and excavator by the road.Push arm is vertical with shaft, hydraulic The flexible of oil cylinder drives shaft rotation by push arm.

Or the pushing meanss are the motor that output end is connect with the shaft, the connection of the motor and power supply The control switch of control motor forward/backward rotation is provided on circuit.Motor is rotated or electronic by speed change gear drive shaft Machine is straight-line displacement device, and motor output shaft end and the push arm in shaft are hinged, is controlling motor just by control switch Reversion pushes shaft positive and negative rotation when motor forward/backward rotation, so that mud scraper plate be driven to rotate upwardly and downwardly.

Or the pushing meanss include flexible axle that one end is connect with push arm in the shaft and with the flexible axle other end The control crank of connection.

Further, in above-mentioned crawler-mounted excavator, the shaft and pushing meanss are mounted under the revolving platform Bottom surface.Or the shaft and pushing meanss are mounted on the upper bottom surface of the revolving platform, are provided with confession on the revolving platform The strip avoid holes that the mud scraper plate rotates down.

Compared with prior art, the present invention in the present invention, when upper body opposing lower portions vehicle body does revolution movement, being located at Supporting cylinder side, chassis upper space mud scraper plate shovel scrape mud on chassis, avoid mud accumulation excessive and cause Adverse effect.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of crawler-mounted excavator of the present invention.

Fig. 2 is that the middle mud scraper plate of crawler-mounted excavator of the present invention is in status diagram when shovel scrapes mud.

Fig. 3 is that the middle mud scraper plate of crawler-mounted excavator of the present invention is in collapsed state schematic diagram.

Fig. 4 is the hydraulic principle figure of the middle pushing meanss of crawler-mounted excavator of the present invention.

Specific embodiment

Illustrate specific embodiment with reference to the accompanying drawing.

As shown in Figure 1, the crawler-mounted excavator in the present embodiment, including upper body and lower body, lower body Chassis includes chassis 11 and the track beam 13 for being mounted on chassis two sides, and the middle part at 11 top of chassis is provided with supporting cylinder 12, The top of supporting cylinder 12 is equipped with pivoting support 5；Upper body includes the revolving platform 2 connecting with pivoting support 5.Excavator The hydraulic motor and guide wheel of running gear, crawler belt 14, thrust wheel, support sprocket wheel, etc. be mounted on track beam 13.Pacify on revolving platform Equipped with (not shown)s such as driver's cabin, equipment, dynamical systems.

As shown in Fig. 2, being equipped with mud scraper plate 4 on revolving platform 2.Mud scraper plate 4 is in lath-shaped, and one end is fixed with Shaft 41, shaft 41 are rotatably installed in the bottom plate upper side of revolving platform 2, In by the hinged otic placode 21 on revolving platform 2 Strip avoid holes 22 are additionally provided on revolving platform 2, when shaft 41 rotates, the other end (free end) of mud scraper plate 4 passes through Avoid holes 22 turn to the downside of revolving platform 2 from the upside of revolving platform 2, and the free end of mud scraper plate 4 is made to be directed toward bearing circle Cylinder 5 sides, 11 upper space of chassis.

The pushing meanss of drive shaft 41 are a set of fluid pressure drive device comprising hydraulic cylinder 34, pipeline 33, control valve 32, pressure oil-source 36.Hingedly the upside with revolving platform 2, the other end are cut with scissors with the push arm in shaft 41 for one end of hydraulic cylinder 34 It connects, push arm is vertical with shaft 41 to be connect.Hydraulic cylinder 34 is connected by pipeline 33, control valve 32 and pressure oil-source 36 and fuel tank 31 It connects, principle is as shown in Figure 4.Since the active force of rotating shaft 41 is smaller, pressure oil-source 36 can be the guide on excavator Oil sources (such as pioneer pump, pressure is lower, the pilot control oil sources for the multi-way valve in hydraulic system).In order to hydraulic oil The stroke of cylinder 34 is limited, and rubber block 35 is provided with below hydraulic cylinder.

When having accumulated more mud on the chassis 11 of excavator, when being rooted out, made by controlling pushing meanss Mud scraper plate 4 produces downwards from the avoid holes 22 on revolving platform, and the free end of mud scraper plate 3 is directed toward by supporting cylinder 12 Side, 11 upper space of chassis, as shown in Fig. 1 Fig. 2.Make upper body opposing lower portions by controlling the rotary motor of excavator at this time Vehicle body (revolving platform) makees revolution movement, and also opposing lower portions vehicle body rotates mud scraper plate 4, to strike off chassis 11 on lower body The mud at top, to avoid the mud accumulation at 11 top of chassis too many and influence the butter mouth and crawler belt row of pivoting support 5 Support sprocket wheel walked etc..

In the present embodiment, pushing meanss are fluid pressure drive device, in practical application, pushing meanss can also be electronic Pushing meanss, even if substituting hydraulic cylinder with motor, the output end of motor is connect with shaft, the connection of motor and power supply Control switch is provided on circuit.Motor is rotated by speed change gear drive shaft or motor is straight-line displacement device, Motor output shaft end and the push arm in shaft are hinged, control motor forward/backward rotation, motor forward/backward rotation by control switch When push shaft positive and negative rotation, so that mud scraper plate be driven to rotate upwardly and downwardly.Pushing meanss, which can also be, above to be pushed away by one end with shaft The flexible axle of arm connection and the control crank connecting with the flexible axle other end are constituted.Operator can pull flexible axle to make by control crank Shaft rotation, to play the folding and unfolding of mud scraper plate.

In the present embodiment, mud scraper plate is made of the biggish steel plate of rigidity, can also use bullet in specific application Property plate is made, such as the elastic rubber slab with certain rigidity or spring steel plate are made.

In the present embodiment, mud scraper plate pushes shaft rotation by pushing meanss and realizes that mud scraper plate rotates upwardly and downwardly and receives It puts, in the specific implementation, mud scraper plate can also directly be fixedly mounted, i.e. mud scraper plate is square, and the upper end is fixedly mounted on The bottom of revolving platform, lower end extend vertically downward, if lower edge also according to chassis top surface shape and make inclination or it is curved Song keeps bottom edge minimum with distance everywhere in chassis top surface everywhere, reaches mud shovel and scrapes optimum efficiency.Excavator upper body phase When to lower body rotation, chassis top surface accumulation can be more than that the mud of certain altitude strikes off by mud scraper plate, to avoid bottom Mud accumulation in frame upper surface is too many and adversely affects.

In the present embodiment, shaft and pushing meanss are installed on the upside of revolving platform bottom plate, and are arranged on bottom plate and keep away Hole is allowed to rotate upwardly and downwardly for mud scraper plate, in the specific implementation, (hydraulic cylinder is electronic for the executive device of shaft and pushing meanss Machine) it is also mountable to the bottom surface of revolving platform bottom plate, just without starting avoid holes in this way on revolving platform bottom plate.

In crawler-mounted excavator of the present invention, when upper body opposing lower portions vehicle body does revolution movement, it is located at supporting cylinder Side, chassis upper space mud scraper plate shovel scrape mud on chassis, avoid mud accumulation excessive and adversely affect.