CN215101751U

CN215101751U - Walking supporting leg jacking device of bucket wheel machine

Info

Publication number: CN215101751U
Application number: CN202121439915.4U
Authority: CN
Inventors: 郭建国; 王宏军; 陈艳林; 杨祥林
Original assignee: Huaneng Jingyuan Thermal Power Co ltd
Current assignee: Huaneng Jingyuan Thermal Power Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-12-10
Anticipated expiration: 2031-06-25

Abstract

The application provides a walking support leg jacking device of a bucket wheel machine, which comprises a base, a support frame, a support plate, a jacking mechanism and a jacking plate, wherein the base is used for being supported on the ground, the support frame is connected with the base, and the top height of the support frame can be adjusted relative to the base; the supporting plate is arranged at the top of the supporting frame, an annular groove and a plurality of limiting grooves are arranged on the supporting plate, one end of each limiting groove is communicated with the annular groove, and the other end of each limiting groove is spaced from the outer peripheral surface of the supporting plate; each limiting groove is internally provided with at least one jacking mechanism, each jacking mechanism comprises a fixing piece and a moving piece, the fixing piece is matched with the corresponding limiting groove in a sliding manner along the extending direction of the limiting groove, and the fixing piece and the limiting groove are relatively fixed in the groove depth direction of the limiting groove so as to prevent the fixing piece from falling out of the notch of the limiting groove; the movable part and the fixed part are matched in a sliding mode in the telescopic direction of the supporting frame, and the jacking plate is connected with the movable part and used for abutting against the walking supporting leg of the bucket wheel machine. The support is stable, and the security is high.

Description

Walking supporting leg jacking device of bucket wheel machine

Technical Field

The application relates to the field of maintenance equipment, particularly, relates to a bucket wheel machine walking landing leg jacking device.

Background

At present, a traveling mechanism of a bucket wheel machine, particularly a DQ type bucket wheel machine, adopts four-point supports to contact with a foundation rail on the ground, each group of supports respectively comprises a supporting leg and a group of traveling trolleys arranged on the supporting leg, and each two groups of supports are arranged on the traveling rail in a front-back arrangement mode. The bucket wheel machine can bear a static load of 200 to 250 tons when the bucket wheel machine is approximately static or a dynamic impact load of 250 to 300 tons when the bucket wheel machine is operated. Because the stress is large, after long-term operation, faults such as fatigue crack of a welding seam of a supporting leg, abrasion of a wheel, damage of a wheel shaft or a bearing, abrasion of a driving gear of the wheel or broken teeth and the like easily occur, and the supporting leg and a trolley set at a fault point are often required to be supported and jacked to be separated from a track to release static load borne by the supporting leg and the trolley set so as to facilitate implementation of maintenance work. Two supporting and jacking methods for supporting legs and trolley sets are frequently adopted, one method is that for larger overhauling work (generally implemented by bucket wheel machine manufacturing units), special supporting tools are manufactured on the periphery of the outer side of the bucket wheel machine and the front end of a cantilever, and a hydraulic jack is used for jacking the bucket wheel machine integrally; and the other is that for small-scale maintenance work, a seamless steel pipe with the diameter of phi 159mm or more is used as a support column, a proper point is selected to be locally jacked up by a hydraulic jack under the rotary table of the bucket wheel machine close to a fault point. At present, the adjustable range of the auxiliary supporting equipment for overhauling is small, and the application range is narrow.

SUMMERY OF THE UTILITY MODEL

The application provides a bucket wheel machine walking landing leg jacking device to improve above-mentioned technical problem.

The utility model discloses it is specifically such:

based on the above purpose, the embodiment of the application provides a jacking device for walking legs of a bucket wheel machine, which comprises a base, a support frame, a support plate, a jacking mechanism and a jacking plate, wherein the base is used for being supported on the ground, the support frame is connected with the base and is of a telescopic structure, and the top height of the support frame can be adjusted relative to the base; the supporting plate is arranged at the top of the supporting frame, an annular groove and a plurality of limiting grooves are formed in the supporting plate, the limiting grooves are distributed at intervals in the circumferential direction of the annular groove, one end of each limiting groove is communicated with the annular groove, and the other end of each limiting groove is spaced from the outer circumferential surface of the supporting plate; each limiting groove is internally provided with at least one jacking mechanism, each jacking mechanism comprises a fixed piece and a movable piece, each fixed piece is slidably matched with the corresponding limiting groove along the extending direction of the limiting groove, and the fixed pieces and the limiting grooves are relatively fixed in the groove depth direction of the limiting grooves so as to prevent the fixed pieces from falling off from the notches of the limiting grooves; the movable piece and the fixed piece are matched in a sliding mode in the telescopic direction of the supporting frame, and the jacking plate is connected with the movable piece and used for abutting against the walking supporting leg of the bucket wheel machine.

Optionally, the limiting groove is a dovetail groove or a "T" shaped groove.

Optionally, the support frame includes a main body frame, a lifter, a guide rod, a guide sleeve and an installation frame, the main body frame is connected to the base, the lifter is connected to the main body frame, the guide sleeve is in sliding fit with the guide rod, the guide sleeve is connected to the main body frame, the guide rod is connected to the installation frame, and the installation frame is arranged at a lifting end of the lifter; the lifter is used for driving the mounting frame to lift relative to the main body frame.

Optionally, the guide sleeve is provided with a guide groove, and the guide rod is inserted into the guide groove.

Optionally, the jacking mechanism is a jack.

Optionally, a surface of the jacking plate departing from the jacking mechanism is provided with an anti-slip structure.

Optionally, the anti-slip structure is configured as a criss-cross groove structure.

Optionally, bucket wheel machine walking landing leg jacking device still includes supplementary bearing structure, supplementary bearing structure's quantity is a plurality of, a plurality of supplementary bearing structure's one end with the pedestal connection is a plurality of supplementary bearing structure centers on the support frame sets up, and every the height at supplementary bearing structure's top is less than the height of jacking board.

Optionally, the fixing element is connected to the support plate through a screw, so that the fixing element and the support plate have a locking state and an unlocking state, and when the fixing element is in the locking state, the fixing element is fixed relative to the limiting groove; when being in the unblock state, the mounting can slide for the spacing groove.

Optionally, a cushion layer is arranged on the jacking plate.

The utility model has the advantages that:

to sum up, the bucket wheel machine walking landing leg jacking device that this embodiment provided is when carrying out the landing leg jacking in order to overhaul the landing leg, locates bucket wheel machine landing leg below with the base, can set up the sleeper in the base below to other situations such as adaptation unevenness ground improve the stationarity of base. Then, the position of each jacking mechanism is correspondingly adjusted according to the type of the supporting leg, namely the size of the supporting leg, so that the position of a jacking plate connected with the jacking mechanisms is adjusted, and the fixing piece can slide in the corresponding limiting groove during adjustment. And before the position adjustment, the jacking mechanism does not jack up and support the jacking plate at the bottom of the supporting leg, and the position adjustment of the jacking mechanism is convenient and reliable. After the position adjustment of each jacking mechanism is completed, namely the position adjustment of each jacking plate is completed, the position of each jacking mechanism is locked, then each jacking mechanism is started to drive each jacking plate to ascend, and each supporting leg is jacked.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram (matching support leg) of a lifting device of a walking support leg of a bucket wheel machine provided by the application;

FIG. 2 is a schematic structural view of a support plate provided herein;

FIG. 3 is a schematic cross-sectional view of a support plate provided herein;

fig. 4 is a schematic structural diagram of the support frame provided in the present application.

Icon:

001-leg support; 100-a base; 200-a support frame; 210-a body frame; 220-a lifter; 230-a guide bar; 240-guide sleeve; 241-a guide groove; 250-a mounting rack; 300-a support plate; 310-an annular groove; 320-a limiting groove; 400-a jacking mechanism; 410-a fixture; 420-a movable member; 500-jacking plate; 600-an auxiliary support structure; 700-sleeper.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it should be noted that the indication of the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is conventionally understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the bucket wheel walking leg jacking device or element which is indicated must have a specific orientation, be configured and operated in a specific orientation, and therefore, cannot be understood as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example (b):

referring to fig. 1 to 4, the present embodiment provides a lifting device for a walking leg of a bucket wheel machine, including a base 100, a supporting frame 200, a supporting plate 300, a lifting mechanism 400 and a lifting plate 500, wherein the base 100 is used for supporting on the ground, the supporting frame 200 is connected to the base 100, the supporting frame 200 is a telescopic structure, and the top height of the supporting frame 200 can be adjusted relative to the base 100; the supporting plate 300 is arranged at the top of the supporting frame 200, the supporting plate 300 is provided with an annular groove 310 and a plurality of limiting grooves 320, the limiting grooves 320 are arranged at intervals in the circumferential direction of the annular groove 310, one end of each limiting groove 320 is communicated with the annular groove 310, and the other end of each limiting groove 320 is spaced from the outer circumferential surface of the supporting plate 300; each limiting groove 320 is provided with at least one jacking mechanism 400, each jacking mechanism 400 comprises a fixed part 410 and a movable part 420, each fixed part 410 is slidably matched with the corresponding limiting groove 320 along the extending direction of the limiting groove 320, and the fixed parts 410 and the limiting grooves 320 are relatively fixed in the groove depth direction of the limiting grooves 320 so as to prevent the fixed parts 410 from falling out of the notches of the limiting grooves 320; the movable member 420 and the fixed member 410 are slidably engaged in the extension direction of the supporting frame 200, and the lifting plate 500 is connected to the movable member 420 and is configured to abut against the walking leg 001 of the bucket wheel machine.

The bucket wheel machine walking landing leg jacking device that this embodiment provided carries out landing leg 001 jacking when overhauing landing leg 001, locates bucket wheel machine landing leg 001 below with base 100, can set up sleeper 700 in base 100 below to other situations such as adaptation unevenness ground improve the stationarity of base 100. Then, the position of each jacking mechanism 400 is adjusted according to the type of the supporting leg 001, that is, according to the size of the supporting leg 001, so as to adjust the position of the jacking plate 500 connected with the jacking mechanism 400, and during adjustment, the fixing member 410 slides in the corresponding limiting groove 320. Before the position is adjusted, the jacking mechanism 400 does not jack and support the jacking plate 500 at the bottom of the supporting leg 001, and the position of the jacking mechanism 400 is adjusted conveniently and reliably. After the position adjustment of each jacking mechanism 400 is completed, namely after the position adjustment of each jacking plate 500 is completed, the position of each jacking mechanism 400 is locked, then the jacking mechanisms 400 are started to drive the jacking plates 500 to ascend, and the supporting legs 001 are jacked up.

It should be noted that, the number of the jacking mechanisms 400 can be two, three or four, and the like, and the jacking mechanisms 400 can be arranged as required, and are evenly spaced in the circumferential direction of the supporting plate 300.

In this embodiment, optionally, the base 100 is configured as a rectangular plate, the bottom of the base 100 may be disposed on the sleeper 700, and the sleeper 700 can adapt to the change of the terrain, so as to ensure that the base 100 is substantially horizontally disposed, and provide a stable supporting force. The base 100 is made of steel plate, so that the structural strength is high and the service life is long.

In this embodiment, optionally, the supporting frame 200 is configured to be a retractable structure, and when the supporting legs 001 are supporting, the height of the supporting frame 200 may be adjusted first, so as to reduce the distance between the lifting plate 500 and the supporting legs 001, reduce the time required for lifting the lifting plate 500, and improve the operation efficiency.

For example, the supporting frame 200 includes a main body frame 210, a lifter 220, a guide rod 230, a guide sleeve 240 and a mounting frame 250, the main body frame 210 is connected to the base 100, the lifter 220 is connected to the main body frame 210, the guide sleeve 240 is slidably fitted to the guide rod 230, the guide sleeve 240 is connected to the main body frame 210, the guide rod 230 is connected to the mounting frame 250, and the mounting frame 250 is disposed on a lifting end of the lifter 220; the lifter 220 is used for driving the mounting frame 250 to ascend and descend relative to the body frame 210. Obviously, the guide rod 230 may be connected to the body frame 210, and the guide sleeve 240 is connected to the mounting frame 250.

It should be noted that the guide rods 230 and the guide sleeves 240 are arranged in pairs, the number of the guide rods 230 and the number of the guide sleeves 240 are set as required, and a plurality of groups of the guide rods 230 and the guide sleeves 240 can be arranged between the main body frame 210 and the mounting frame 250, so that the guiding effect and the stability are improved. The guide rod 230 and the guide sleeve 240 may be linear bearings. Further, the guide sleeve 240 is provided with a cylindrical guide groove 241, and the guide rod 230 is inserted into the guide groove 241 and slidably engaged with the guide groove 241.

It should be noted that the lifting device 220 may be a jack.

It should be understood that the jacking mechanism 400 can also be provided as a jack, the jack is convenient to operate and has high stability, and the unloading pressure of the jack can be set to avoid the jack being damaged. In order to improve the safety, a plurality of auxiliary supporting structures 600 are disposed around the supporting frame 200, one end of each of the plurality of auxiliary supporting structures 600 is connected to the base 100, the plurality of auxiliary supporting structures 600 are disposed around the supporting frame 200, and the top of each of the plurality of auxiliary supporting structures 600 is lower than the lifting plate 500. When the jack is unloaded, the legs 001 fall on the auxiliary support structure 600 to avoid crushing constructors or other equipment located below the legs 001. The auxiliary supporting structure 600 may be a frame structure, for example, a metal frame structure, and has high structural strength and safety.

In this embodiment, the support plate 300 is provided as an annular plate, and the support plate 300 is welded to the top of the support frame 200. And the annular groove 310 on the supporting plate 300 is an annular groove 310, which is convenient for processing and also convenient for the arrangement of the jacking mechanism 400.

The number of the limiting grooves 320 on the supporting plate 300 is set as required, and the plurality of limiting grooves 320 are uniformly arranged at intervals. Each limiting groove 320 is provided with a dovetail groove or a 'T' -shaped groove, so that the fixing member 410 can be prevented from coming off from the notch of the limiting groove 320, and correspondingly, the fixing member 410 is provided with a limiting convex part corresponding to the limiting groove 320, and the limiting convex part is of a dovetail structure or a 'T' -shaped structure. Further, the fixing member 410 is connected to the support plate 300 by a screw, so that the fixing member 410 and the support plate 300 have a locking state and an unlocking state, and in the locking state, the fixing member 410 is fixed with respect to the limiting groove 320; in the unlocked state, the fixing member 410 can slide relative to the retaining groove 320. Through setting up the screw, improve the stability behind the climbing mechanism 400 position determination, be difficult for shifting, the security is high.

Optionally, a surface of the jacking plate 500 departing from the jacking mechanism 400 is provided with an anti-slip structure, and the anti-slip structure may be a criss-cross groove structure. In addition, in other embodiments, a cushion layer is arranged on a surface of the jacking plate 500 departing from the jacking mechanism 400, an anti-slip structure is arranged on the cushion layer, and the cushion layer can deform to a certain extent, so that the friction force between the cushion layer and the supporting legs 001 is further increased, and the stability is improved.

The bucket wheel machine walking landing leg jacking device that this embodiment provided, simple structure is reasonable, convenient to use, adjustable position, accommodation is wide, and the security is high, and the accident rate is low.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a bucket wheel machine walking landing leg jacking device which characterized in that includes:

the lifting device comprises a base, a support frame, a support plate, a lifting mechanism and a lifting plate, wherein the base is used for being supported on the ground, the support frame is connected with the base and is of a telescopic structure, and the top height of the support frame can be adjusted relative to the base; the supporting plate is arranged at the top of the supporting frame, an annular groove and a plurality of limiting grooves are formed in the supporting plate, the limiting grooves are distributed at intervals in the circumferential direction of the annular groove, one end of each limiting groove is communicated with the annular groove, and the other end of each limiting groove is spaced from the outer circumferential surface of the supporting plate; each limiting groove is internally provided with at least one jacking mechanism, each jacking mechanism comprises a fixed piece and a movable piece, each fixed piece is slidably matched with the corresponding limiting groove along the extending direction of the limiting groove, and the fixed pieces and the limiting grooves are relatively fixed in the groove depth direction of the limiting grooves so as to prevent the fixed pieces from falling off from the notches of the limiting grooves; the movable piece and the fixed piece are matched in a sliding mode in the telescopic direction of the supporting frame, and the jacking plate is connected with the movable piece and used for abutting against the walking supporting leg of the bucket wheel machine.

2. The jacking device of the walking legs of the bucket wheel machine of claim 1, wherein:

the limiting groove is a dovetail groove or a T-shaped groove.

3. The jacking device of the walking legs of the bucket wheel machine of claim 1, wherein:

the supporting frame comprises a main body frame, a lifter, a guide rod, a guide sleeve and an installation frame, wherein the main body frame is connected with the base, the lifter is connected with the main body frame, the guide sleeve is in sliding fit with the guide rod, the guide sleeve is connected with the main body frame, the guide rod is connected with the installation frame, and the installation frame is arranged on the lifting end of the lifter; the lifter is used for driving the mounting frame to lift relative to the main body frame.

4. The jacking device of the walking legs of the bucket wheel machine of claim 3, wherein:

the guide sleeve is provided with a guide groove, and the guide rod is inserted in the guide groove.

5. The jacking device of the walking legs of the bucket wheel machine of claim 1, wherein:

the jacking mechanism is set as a jack.

6. The jacking device of the walking legs of the bucket wheel machine of claim 1, wherein:

and one surface of the jacking plate, which deviates from the jacking mechanism, is provided with an anti-skidding structure.

7. The jacking device of the walking legs of the bucket wheel machine of claim 6, wherein:

the anti-skid structure is a criss-cross groove structure.

8. The jacking device of the walking legs of the bucket wheel machine of claim 1, wherein:

the bucket wheel machine walking landing leg jacking device still includes supplementary bearing structure, supplementary bearing structure's quantity is a plurality of, a plurality of supplementary bearing structure's one end with pedestal connection is a plurality of supplementary bearing structure centers on the support frame sets up, and every the height at supplementary bearing structure's top is less than the height of jacking board.

9. The jacking device of the walking legs of the bucket wheel machine of claim 1, wherein:

the fixing piece is connected with the supporting plate through a screw, so that the fixing piece and the supporting plate have a locking state and an unlocking state, and the fixing piece is fixed relative to the limiting groove when in the locking state; when being in the unblock state, the mounting can slide for the spacing groove.

10. The jacking device of the walking legs of the bucket wheel machine of claim 1, wherein:

and the jacking plate is provided with a cushion layer.