Hydraulic pipeline arrangement structure of lower vehicle assembly and engineering equipment

Abstract

The utility model provides a hydraulic pipeline arrangement structure and engineering equipment of a lower vehicle assembly, the hydraulic pipeline arrangement structure is used for connecting a walking motor and a central rotary joint of the lower vehicle assembly, and the hydraulic pipeline arrangement structure comprises a first hydraulic rubber pipe group, a transition block and a second hydraulic rubber pipe group; one end of the first hydraulic rubber tube group is connected with the walking motor, the other end is connected with one side of the transition block, the first hydraulic rubber tube group is arranged in a closed space of a lower vehicle assembly crawler beam, and the transition block is arranged on the outer wall of the lower vehicle assembly crawler beam; the other side of the transition block is connected with one end of a second hydraulic rubber pipe set through a quick connector, and the other end of the second hydraulic rubber pipe set is connected with a central rotary connector. A protective sleeve is arranged outside the second hydraulic rubber pipe group; the hydraulic pipeline arrangement structure provided by the utility model is not easy to damage under severe working conditions, and is convenient to install and easy to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lower vehicle assembly technical field especially relates to a lower vehicle hydraulic pipeline arrangement structure for harsh working condition and engineering equipment. BACKGROUND

[0002] The super large excavator needs to face various complex and harsh working conditions, in common mine excavation operation, the ore debris often falls from the gap between the lower vehicle middle frame and left and right track beam and the ore slurry extrudes the side of the track beam in the process of advancing, which causes pressure impact and corrosion to the rubber pipe of the lower vehicle hydraulic pipeline, and easily produces rupture and even hydraulic oil leakage.

[0003] At present, the lower vehicle hydraulic pipeline arrangement scheme of the excavator mainly has the following problems:

[0004] 1, the common lower vehicle hydraulic pipeline arrangement scheme is relatively simple, only a single rubber pipe is connected between the central rotary joint interface and the interface corresponding to the traveling motor, and no measures are taken to protect the rubber pipe; but the super large excavator needs to transport the middle frame supporting the central rotary joint and the track beam loading the traveling motor separately in the transportation process, the rubber pipe exposed to the outside is easy to be damaged, and once damaged, the whole rubber pipe needs to be replaced, which is very inconvenient for disassembly and maintenance of the single whole rubber pipe connection pipeline in the later period;

[0005] 2, another common pipeline layout scheme adopts the arrangement mode of rubber pipe-steel pipe-rubber pipe between the central rotary joint interface and the interface corresponding to the traveling motor, that is, a section of rubber pipe is extended from the central rotary joint and the traveling motor respectively, and then a steel pipe is used to connect the two end rubber pipes in the transition part between the lower vehicle middle frame and the track beam; the segmented scheme effectively solves the problem of separate transportation of each part of the excavator in the transportation process and is convenient for later maintenance and replacement; but since the connection between the middle frame and the track beam is needed, the design of the corresponding steel pipe needs to match the size in two directions, so the manufacturing precision and installation error of the steel pipe are very high, the production and installation are difficult, and the cost is high.

[0006] Therefore, a lower vehicle assembly hydraulic pipeline arrangement structure and engineering equipment are needed, which is not easy to be damaged in harsh working conditions, and is convenient to install and maintain. UTILITY MODEL CONTENT

[0007] The utility model aims at providing a lower vehicle assembly hydraulic pipeline arrangement structure and engineering equipment, which solves the technical problems of traditional lower vehicle hydraulic pipeline damage, difficult installation and maintenance.

[0008] In order to achieve the above object, the utility model provides a hydraulic pipeline arrangement structure of undercarriage assembly for connecting walking motor and central rotary joint of undercarriage assembly, including first hydraulic rubber tube group, transition block and second hydraulic rubber tube group,

[0009] One end of first hydraulic rubber tube group is connected with walking motor, and the other end is connected with one side of transition block, and first hydraulic rubber tube group is arranged in the closed space of track beam of undercarriage assembly, and transition block is arranged on the outer wall of track beam of undercarriage assembly.

[0010] The other side of the transition block is connected with one end of the second hydraulic rubber tube group through a quick connector, and the other end of the second hydraulic rubber tube group is connected with the central rotary joint.

[0011] As a further improvement of the above scheme, the undercarriage hydraulic pipeline arrangement structure further includes a side protection member arranged on the tow wheel seat of the undercarriage assembly for bearing impact in a first direction to protect the transition block and the rubber tube connected thereto.

[0012] As a further improvement of the above scheme, the undercarriage hydraulic pipeline arrangement structure further includes an upper protection member arranged on the track beam and located directly above the transition block for bearing impact in a second direction to protect the transition block and the rubber tube connected thereto.

[0013] As a further improvement of the above scheme, the undercarriage hydraulic pipeline arrangement structure further includes a lower protection member arranged on the track beam and located obliquely below the transition block for bearing impact in a third direction to protect the transition block and the rubber tube connected thereto.

[0014] As a further improvement of the above scheme, the first hydraulic rubber tube group includes a walking motor end pilot rubber tube, a walking motor end oil drain rubber tube, a walking motor end oil inlet rubber tube and a walking motor end oil return rubber tube.

[0015] The second hydraulic rubber tube group includes a central rotary joint end pilot rubber tube, a central rotary joint end oil drain rubber tube, a central rotary joint end oil inlet rubber tube and a central rotary joint end oil return rubber tube.

[0016] As a further improvement of the above scheme, one end of the central rotary joint end oil inlet rubber tube is connected with the transition block through a quick connector having a first height.

[0017] One end of the central rotary joint end oil return rubber tube is connected with the transition block through a quick connector having a second height, and the first height is greater than the second height.

[0018] As a further improvement of the above-mentioned scheme, the transition block comprises a strip-shaped body and an oil passing channel arranged in the strip-shaped body; the strip-shaped body is arranged vertically on the outer wall of the track beam of the lower vehicle assembly.

[0019] In a second aspect, the utility model also provides an engineering equipment comprising the hydraulic pipeline arrangement structure of a lower vehicle assembly.

[0020] Due to the above technical scheme, the utility model has the following beneficial effects:

[0021] The utility model provides a kind of hydraulic pipeline arrangement structure of lower vehicle assembly, for connecting the travel motor of lower vehicle assembly and central rotary joint, including first hydraulic rubber hose group, transition block and second hydraulic rubber hose group;First hydraulic rubber hose group one end is connected travel motor, the other end is connected with the one side of the transition block, and first hydraulic rubber hose group is arranged in the enclosed space of the track beam of lower vehicle assembly, and the transition block is arranged on the track beam of lower vehicle assembly;The other side of the transition block is connected with one end of the second hydraulic rubber hose group by quick connector, and the other end of the second hydraulic rubber hose group is connected with the central rotary joint;Second hydraulic rubber hose group is externally provided with protective sleeve;In the utility model, the segmented hydraulic pipeline arrangement structure of rubber hose-transition block-rubber hose is used in the weak part of hydraulic pipeline that is easily damaged, the characteristics of good flexibility, easy bending and flexible installation are fully utilized, the installation difficulty caused by the traditional steel pipe connecting pipeline is effectively overcome, and the pipeline dismounting difficulty is reduced;And compared with steel pipe, rubber hose is simple to install, waterproof and corrosion resistant;In addition, first hydraulic rubber hose group is arranged in the enclosed space of the track beam of lower vehicle assembly, can avoid the impact of silt and soil block and the like, and is not easy to damage;For the second hydraulic pipeline assembly relatively exposed outside, on the one hand, it is connected with the transition block by quick connector, even if damaged, it can be quickly changed, and only the section of rubber hose needs to be replaced, without changing the whole rubber hose as in the traditional piping scheme, so that maintenance cost can be reduced;On the other hand, protective sleeve is arranged outside the second hydraulic pipeline assembly for effective protection, and the above arrangement can improve the service life of hydraulic pipeline, thereby improving the stability of the whole hydraulic system.

[0022] In some preferred embodiments, in order to effectively protect the hydraulic pipeline, side protection plates are arranged in the first direction, upper protection plates are arranged in the second direction, and lower protection plates are arranged in the third direction, so as to protect the transition block and the rubber hose connection connected thereto from multiple directions, improve the service life of the hydraulic pipeline, and thereby improve the stability of the whole hydraulic system. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required by the description of the embodiments or the prior art. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0024] Figure 1 The main view schematic diagram of the hydraulic pipeline arrangement structure of the lower vehicle assembly disclosed by the present application is shown in the figure.

[0025] Figure 2 The top view schematic diagram of the hydraulic pipeline arrangement structure of the lower vehicle assembly disclosed by the present application is shown in the figure.

[0026] Figure 3 The side view schematic diagram of the hydraulic pipeline arrangement structure of the lower vehicle assembly disclosed by the present application is shown in the figure.

[0027] Figure 4 The three-dimensional structure schematic diagram of the lower vehicle assembly of the engineering equipment disclosed by the present application is shown in the figure.

[0028] Reference signs:

[0029] 0, the hydraulic pipeline arrangement structure of the lower vehicle assembly;

[0030] 1, the first hydraulic rubber pipe group; 11, the walking motor end pilot rubber pipe; 12, the walking motor end oil drain rubber pipe; 13, the walking motor end oil inlet rubber pipe; 14, the walking motor end oil return rubber pipe; 2, the transition block; 3, the second hydraulic rubber pipe group; 31, the central rotary joint end pilot rubber pipe; 32, the central rotary joint end oil drain rubber pipe; 33, the central rotary joint end oil inlet rubber pipe; 34, the central rotary joint end oil return rubber pipe; 4, the side protection piece; 5, the upper protection piece; 6, the lower protection piece;

[0031] 01, the walking motor; 02, the central rotary joint; 03, the track beam; 04, the intermediate frame.

[0032] The realization, functional features and advantages of the present application will be further described with reference to the embodiments in combination with the drawings. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0034] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features.

[0036] Furthermore, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0037] Example 1

[0038] Referring to Figures 1-3 , the present application provides a hydraulic pipe arrangement structure of a lower car assembly, which is used for connecting a traveling motor 01 and a central rotary joint 02 of the lower car assembly, comprising a first hydraulic rubber hose group 1, a transition block 2 and a second hydraulic rubber hose group 3; specifically, the hydraulic pipe of the lower car assembly is a left-right symmetrical structure, in this embodiment, the left track beam 03 part of the hydraulic pipe layout structure is taken as an example for description, and in Figures 1-3 , only the left track beam 03 part of the hydraulic pipe layout structure is shown;

[0039] One end of the first hydraulic rubber hose group 1 is connected with the traveling motor 01, and the other end is connected with one side of the transition block 2, the first hydraulic rubber hose group 1 is arranged in the closed space of the track beam 03 of the lower car assembly, and the transition block 2 is arranged on the outer wall of the track beam 03 of the lower car assembly;

[0040] The other side of the transition block 2 is connected with one end of the second hydraulic rubber hose group 3 through a quick connector, and the other end of the second hydraulic rubber hose group 3 is connected with the central rotary joint 02; the second hydraulic rubber hose group 3 is externally provided with a protective sleeve, preferably, the protective sleeve is a PG protective sleeve;

[0041] In the utility model, the sectional type hydraulic pipeline arrangement structure of rubber tube - transition block - rubber tube is used to the weak part of the hydraulic pipeline which is easily damaged, the characteristics of good flexibility, easy bending and flexible installation of rubber tube are fully utilized, the installation difficulty of pipeline is reduced, the drawbacks of difficult installation of traditional steel pipe connecting pipeline are effectively overcome, and the pipeline disassembly and assembly difficulty is reduced; and compared with steel pipe, rubber pipe is simple to install, waterproof and strong in corrosion resistance; in addition, the first hydraulic rubber pipe group 1 is arranged in the closed space of the lower vehicle assembly track beam 03, impact of mud, soil and debris can be avoided, and damage is not easy; for the second hydraulic pipeline assembly which is relatively exposed outside, on the one hand, the quick connector is connected with the transition block 2, even if damaged, it can be quickly changed, and only the section of rubber pipe needs to be replaced, without changing the whole rubber pipe as in the traditional pipeline arrangement scheme, so that the maintenance cost can be reduced; on the other hand, the protective sleeve is arranged outside the second hydraulic pipeline assembly to effectively protect, and the service life of the hydraulic pipeline can be improved, so that the stability of the whole hydraulic system can be improved.

[0042] As a preferred embodiment, the lower vehicle hydraulic pipeline arrangement structure further comprises a side protection piece 4 arranged on the tug wheel seat of the lower vehicle assembly and used for bearing the impact in the first direction A to protect the transition block 2 and the rubber pipe connected therewith;

[0043] The lower vehicle hydraulic pipeline arrangement structure further comprises an upper protection piece 5 arranged on the track beam 03 and located directly above the transition block 2 and used for bearing the impact in the second direction B to protect the transition block 2 and the rubber pipe connected therewith;

[0044] The lower vehicle hydraulic pipeline arrangement structure further comprises a lower protection piece 6 arranged on the track beam 03 and located obliquely below the transition block 2 and used for bearing the impact in the third direction C to protect the transition block 2 and the rubber pipe connected therewith;

[0045] The protection pieces are arranged in the three directions which are easy to produce impact respectively, the transition block 2 and the rubber pipe connected therewith are protected in multiple directions, the impact of the hydraulic pipeline in the main direction can be effectively coped with, the service life of the hydraulic pipeline is improved, and the stability of the whole hydraulic system is improved.

[0046] As a preferred embodiment, the first hydraulic rubber pipe group 1 comprises a walking motor 01 end pilot rubber pipe 11, a walking motor 01 end oil drain rubber pipe 12, a walking motor 01 end oil inlet rubber pipe 13 and a walking motor 01 end oil return rubber pipe 14;

[0047] The second hydraulic rubber pipe group 3 comprises a central rotary joint 02 end pilot rubber pipe 31, a central rotary joint 02 end oil drain rubber pipe 32, a central rotary joint 02 end oil inlet rubber pipe 33 and a central rotary joint 02 end oil return rubber pipe 34.

[0048] As a preferred embodiment, one end of the central swivel joint 02 end oil inlet rubber pipe 33 is connected with the transition block 2 through a quick connector with a first height;

[0049] One end of the central swivel joint 02 end oil return rubber pipe 34 is connected with the transition block 2 through a quick connector with a second height; and the first height is greater than the second height; in this way, the two main oil path rubber pipes (the central swivel joint 02 end oil inlet rubber pipe 33 and the central swivel joint 02 end oil return rubber pipe 34) with large diameters are staggered and wrap the two rubber pipes (the central swivel joint 02 end pilot rubber pipe 31 and the central swivel joint 02 end oil leakage rubber pipe 32) with small diameters below as much as possible, thereby achieving good protection.

[0050] As a preferred embodiment, the transition block 2 comprises a strip-shaped body and an oil passing channel arranged in the strip-shaped body; the strip-shaped body is vertically arranged on the outer wall of the track beam 03 of the lower vehicle assembly; specifically, in this embodiment, the transition block 2 follows the principle of reducing the transverse size, and the transverse size of the transition block 2 is reduced as much as possible under the premise of ensuring the size of the pipe interface, so as to prevent the impact of mud, soil blocks and other debris at the gap.

[0051] Embodiment 2

[0052] The utility model also provides an engineering equipment, including the hydraulic pipeline arrangement structure 0 of embodiment 1 provided with the lower vehicle assembly, in this embodiment, referring to Figure 4With the excavator engineering equipment as an example, the lower vehicle assembly of the excavator comprises left and right track beam 03 assemblies, a central rotary joint 02, an intermediate frame 04, and a traveling motor 01, the hydraulic pipeline arrangement structure 0 of the lower vehicle assembly is arranged symmetrically on the left and right sides of the central rotary joint 02, and the first hydraulic rubber hose group 1 is arranged in the closed space of the left track beam 03 or the closed space of the right track beam 03; the pipeline connection mode between the central rotary joint 02 and the traveling motor 01 adopts the hose-transition block 2-hose form, and the segmented pipeline arrangement mode makes the hose of the traveling motor 01-transition block 2 part in the closed space surrounded by the track beam 03 and the main rib plate reinforcing plate, the hose of this part (i.e. the first hydraulic rubber hose group 1) is not easy to be damaged, while the hose between the central rotary joint 02 and the transition block 2 part is exposed outside due to the local hose between the intermediate frame 04 and the track beam 03, and lacks protection, and is extremely easy to be impacted by the sand and soil block debris above and below; the hose is simple to install, waterproof and corrosion-resistant compared with the steel pipe, a quick-change joint is used at the end of the transition block 2, after the hose of this part (i.e. the second hydraulic rubber hose group 3) is damaged, the hose of this part can be quickly replaced, the pipeline installation and removal difficulty and the maintenance cost are reduced, the service life of the hydraulic pipeline of the lower vehicle assembly is improved, and the stability of the whole hydraulic system of the engineering equipment is improved.

[0053] The above are only preferred embodiments of the utility model, and do not limit the patent range of the utility model, and any equivalent structural transformation made under the utility model concept of the utility model, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A hydraulic piping arrangement of a lower car assembly for connecting a traveling motor of a lower car assembly with a central swivel joint, characterized by, The hydraulic pipe arrangement structure of the lower vehicle assembly comprises a first hydraulic rubber pipe group, a transition block and a second hydraulic rubber pipe group. One end of the first hydraulic rubber pipe group is connected with a traveling motor, and the other end is connected with one side of the transition block. The other side of the transition block is connected with one end of the second hydraulic rubber pipe group through a quick connector.

2. The hydraulic tubing routing arrangement of a drop off assembly of claim 1, wherein, The other end of the second hydraulic rubber pipe group is connected with the central rotary joint.

3. The hydraulic line arrangement of a disembarking assembly according to claim 1 or 2, characterized in that The second hydraulic rubber pipe group is externally provided with a protective sleeve.

4. The hydraulic line arrangement of a drop off assembly according to claim 3, characterized in that The hydraulic pipe arrangement structure of the lower vehicle assembly further comprises a side protection member arranged on a drag wheel seat of the lower vehicle assembly and used for bearing impact in a first direction to protect the transition block and the rubber pipe connected therewith.

5. The hydraulic line arrangement of a disembarking assembly according to claim 1 or 2, characterized in that The hydraulic pipe arrangement structure of the lower vehicle assembly further comprises an upper protection member arranged on the track beam and located directly above the transition block and used for bearing impact in a second direction to protect the transition block and the rubber pipe connected therewith. The hydraulic pipe arrangement structure of the lower vehicle assembly further comprises a lower protection member arranged on the track beam and located obliquely below the transition block and used for bearing impact in a third direction to protect the transition block and the rubber pipe connected therewith.

6. The hydraulic tubing routing arrangement of a drop center assembly of claim 5, wherein, The first hydraulic rubber pipe group comprises a traveling motor end pilot rubber pipe, a traveling motor end oil discharge rubber pipe, a traveling motor end oil inlet rubber pipe and a traveling motor end oil return rubber pipe. The second hydraulic rubber pipe group comprises a central rotary joint end pilot rubber pipe, a central rotary joint end oil discharge rubber pipe, a central rotary joint end oil inlet rubber pipe and a central rotary joint end oil return rubber pipe.

7. The hydraulic line arrangement of a stepwell assembly according to claim 1 or 2, wherein, One end of the central rotary joint end oil inlet rubber pipe is connected with the transition block through a quick connector having a first height.

8. An engineering apparatus characterised in that, One end of the central rotary joint end oil return rubber pipe is connected with the transition block through a quick connector having a second height. The transition block comprises a strip-shaped body and an oil passage arranged in the strip-shaped body. The hydraulic pipe arrangement structure of the lower vehicle assembly comprises a first hydraulic rubber pipe group, a transition block and a second hydraulic rubber pipe group.

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