CN214879780U

CN214879780U - Portable multi-functional annular hoist and mount track of encorbelmenting

Info

Publication number: CN214879780U
Application number: CN202121425173.XU
Authority: CN
Inventors: 费翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-11-26
Anticipated expiration: 2031-06-25

Abstract

The utility model belongs to the technical field of hoisting equipment, the utility model provides a portable multifunctional overhanging annular hoisting track, which comprises a bearing frame, wherein the bearing frame comprises a fixed frame, one end of the fixed frame is articulated with an overhanging frame, the bottom of the overhanging frame is provided with an annular guide rail hoisting mechanism, the fixed frame is provided with a fixed plate near the middle part, the top of the fixed plate is provided with a first articulated lug which is articulated with the bottom of a cylinder body of an angle-adjusting hydraulic cylinder, the end part of the shaft body of the angle-adjusting hydraulic cylinder is provided with a second articulated lug, the shaft body of the angle-adjusting hydraulic cylinder is articulated with the end part of a connecting plate through the second articulated lug, the positions near the left side and the right side of the fixed frame and the front side and the rear side are provided with liftable wheels, the utility model can adjust the articulated angle of the fixed frame and the overhanging frame by adjusting the telescopic amount of the angle-adjusting hydraulic cylinder, and can enable the device to be horizontally and vertically installed so as to be suitable for the environment with complex working conditions, the practicability is strong.

Description

Portable multi-functional annular hoist and mount track of encorbelmenting

Technical Field

The utility model relates to a lifting device technical field particularly, relates to a portable multi-functional annular hoist and mount track of encorbelmenting.

Background

At present, conventional hoisting equipment is mainly completed by a crane in engineering construction, but the geographic environment of some special areas is not suitable for large-scale equipment to get in and out of site operation, for example, the number of mountainous areas in the Yunnan is large, in the installation engineering of pressure regulating well steel plate linings, as a well is narrow and is mostly installed in the field environment, common hoisting equipment is difficult to get to the site and does not have enough space to lay the equipment in time, and therefore the difficult problem that the size is small and exquisite, the turnover is flexible and an accurate hoisting device is controlled to solve is urgently needed.

SUMMERY OF THE UTILITY MODEL

In order to compensate above not enough, the utility model provides a portable multi-functional annular hoist and mount track of encorbelmenting has: the installation mode is various, control is accurate, remove advantages such as nimble convenience.

The utility model discloses a realize like this:

a portable multifunctional overhanging ring-shaped hoisting track comprises a bearing frame, wherein the bearing frame comprises a fixed framework, one end of the fixed frame is hinged with an overhanging frame, the bottom of the overhanging frame is provided with an annular guide rail hoisting mechanism, a plurality of reinforcing rib plates are arranged at the top of the cantilever frame from the middle to two sides at equal intervals, connecting plates are fixedly connected with the tops of the reinforcing rib plates in the middle of the cantilever frame, a fixed plate is arranged at the position of the fixed frame close to the middle part, a first hinge lug is arranged at the top of the fixed plate, the first hinge lug is hinged with the bottom of the cylinder body of the angle-adjusting hydraulic cylinder, the second hinge lug is arranged at the end part of the shaft body of the angle-adjusting hydraulic cylinder, the shaft body of the angle modulation hydraulic cylinder is hinged with the end part of the connecting plate through the second hinge lug, and the positions, close to the front side and the rear side, of the left side and the right side of the fixed frame are respectively provided with a lifting wheel.

The annular guide rail hoisting mechanism comprises an annular guide rail, the annular guide rail is fixedly arranged at the bottom of the cantilever frame, a circle of annular rack matched with the annular guide rail in shape is arranged at the position, close to the top, of the periphery of the inner ring wall of the annular guide rail, a curve sliding block is connected to the bottom of the annular guide rail in a sliding mode, an installation platform is arranged at the bottom of the curve sliding block, a winch is fixedly arranged at the bottom of the installation platform, an output shaft of the winch is fixedly connected with a cable winding roller, the cable winding roller is fixedly connected to the bottom of the installation platform through a support, a hoisting cable is wound on the surface of the cable winding roller, a motor support is arranged at the top of the installation platform, a bidirectional motor is fixedly arranged at the top of the motor support, the output shaft of the bidirectional motor is fixedly connected with a rotating gear, and one side of the rotating gear is meshed with the annular rack, the rotating gear is located inside the motor bracket.

The utility model discloses an in the embodiment, the liftable wheel includes the spout, spout fixed connection in fixed frame's top and the position department that is close to the four corners, the top of spout is connected with the top bearing of threaded rod, the top of threaded rod is passed the top fixedly connected with rolling disc of spout, the bottom bearing of threaded rod connect in fixed frame's top, sliding connection has the slider in the spout, the slider with threaded rod threaded connection, logical groove has been seted up at the back of spout, the back bearing of slider is connected with the axletree, the tip of axletree passes logical groove fixedly connected with gyro wheel.

In an embodiment of the present invention, the annular guide rail includes a linear guide rail and a ninety-degree arc rail, the linear guide rail and the ninety-degree arc rail constitute a rectangular fillet annular guide rail, the annular rack includes a linear rack and a ninety-degree arc rack, and the linear rack and the ninety-degree arc rack constitute a rectangular fillet annular rack.

In an embodiment of the present invention, the fixing frame is provided with a drill plate near the rear portion, a plurality of drill holes are uniformly opened on the surface of the drill plate, the drill holes are used for inserting a drill rod, and the drill rod is inserted into the ground to fix the fixing frame.

The utility model discloses an in the embodiment, fixed frame's top just is close to liftable wheel department fixedly connected with support column, the top fixedly connected with installation sole of support column, the bearing frame passes through installation sole and expansion bolts fixed mounting are on the vertical plane.

The utility model discloses an in one embodiment, the connecting plate is L shape, and one end with two articulated ears are articulated, the other end with the frame middle part of encorbelmenting deep floor fixed connection.

The utility model discloses an in the embodiment, the central authorities department at fixed frame rear portion is provided with the joint chair, the joint chair articulates with the towing hook of machineshop car.

In an embodiment of the present invention, the one end of the hoisting cable is provided with a lock catch.

The utility model discloses an in the embodiment, ring rail hoisting machine constructs and is used for lifting by crane the heavy object and adjusts distance all around.

The utility model discloses an in the embodiment, liftable wheel is used for the jack-up the bearing frame to with the machineshop car butt joint consignment, and through adjusting liftable wheel height, make the bearing frame falls to the ground.

The utility model has the advantages that:

the utility model can adjust the hinging angle between the fixed frame and the cantilever frame by adjusting the telescopic amount of the angle adjusting hydraulic cylinder, so that the device can be horizontally and vertically installed to be suitable for the environment with complex working conditions, and the practicability is strong; through the liftoff high low position of adjustment liftable wheel to realize fixed frame fall to the ground and expand the construction and promote liftoff removal, and can articulate with the machineshop car and realize transporting, make this hoist and mount track have nimble mobility, compare with prior art, removed loaded down with trivial details on-the-spot debugging installation work from, and the heavy body force work of equipment transport, work efficiency obviously improves, and is fit for the harsh narrow and small operational environment of condition.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic view of the three-dimensional structure of the chute of the present invention;

FIG. 4 is a schematic view of the three-dimensional structure of the hoisting mechanism for circular guide rails of the present invention;

fig. 5 is an enlarged schematic view of fig. 4 at B.

In the figure: 100. a bearing frame; 101. a fixed frame; 102. a cantilever frame; 103. reinforcing rib plates; 104. a connecting plate; 105. an angle adjusting hydraulic cylinder; 106. mounting a foot plate; 107. a support pillar; 108. a first hinge lug; 109. a fixing plate; 110. a brazing plate; 111. drilling a drill hole; 112. a hanging seat; 113. a second hinge lug; 200. a hoisting mechanism for the annular guide rail; 201. an annular guide rail; 20101. a linear guide rail; 20102. a ninety-degree arcuate rail; 202. an annular rack; 20201. a linear rack; 20202. a ninety degree arc rack; 203. mounting a platform; 204. a curved slider; 205. a cable take-up roll; 206. hoisting a mooring rope; 207. a winch; 208. a motor bracket; 209. a rotating gear; 210. a bi-directional motor; 300. the wheel can be lifted; 301. a roller; 302. rotating the disc; 303. a threaded rod; 304. a chute; 30401. a through groove; 305. a slider; 306. an axle.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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 present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the 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 present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-5, the utility model provides a portable multifunctional overhanging ring-shaped hoisting track, which comprises a bearing frame 100, the bearing frame 100 comprises a fixed frame 101, one end of the fixed frame 101 is hinged with an overhanging frame 102, the bottom of the overhanging frame 102 is provided with a ring-shaped guide hoisting mechanism 200, the top of the overhanging frame 102 is provided with a plurality of reinforcing rib plates 103 from the middle to two sides at equal intervals, the top of the reinforcing rib plate 103 at the middle part of the overhanging frame 102 is fixedly connected with a connecting plate 109104, the fixed frame 101 is provided with a fixed plate 104 near the middle part, the top of the fixed plate 104 is provided with a hinge lug one 108, the hinge lug one 108 is hinged with the bottom of a cylinder body of an angle-adjusting hydraulic cylinder 105, the end part of the shaft body of the angle-adjusting hydraulic cylinder 105 is provided with a hinge lug two 113, the shaft body of the angle-adjusting hydraulic cylinder 105 is hinged with the end part of the connecting plate 109104 through the hinge lug two 113, the positions at the left side and the right side and near the front side and the back side of the fixed frame 101 are provided with a liftable wheel 300, the angle of the fixed frame 101 hinged with the cantilever frame 102 can be adjusted by adjusting the telescopic amount of the angle adjusting hydraulic cylinder 105, so that the height and the distance to the target ground are carried out by the raising or drooping overhanging frame 102 while the ring rail hoisting mechanism 200 hoists the heavy object, and the fine adjustment operation is carried out, so that in a narrow operation space, the hoisting slide rail has stronger operability, is more flexible and practical, and is matched with the use of the lifting wheels 300, by adjusting the height position of the lifting wheels 300 above the ground, thereby realizing the floor-type unfolding construction and the lifting and ground-type movement of the fixed frame 101, realizing the transfer by being hung with an engineering truck, the hoisting track has flexible maneuverability, compared with the prior art, the complex field debugging and installation work is avoided, and the working efficiency is obviously improved due to the heavy work of equipment transportation, and the device is suitable for narrow working environments with harsh conditions.

The annular guide rail hoisting mechanism 200 comprises an annular guide rail 201, the annular guide rail 201 is fixedly installed at the bottom of an overhanging frame 102, a circle of annular rack 202 matched with the annular guide rail 201 in shape is arranged on the periphery of the inner annular wall of the annular guide rail 201 and close to the top, a curve slider 204 is connected to the bottom of the annular guide rail 201 in a sliding manner, an installation platform 203 is arranged at the bottom of the curve slider 204, a winch 207 is fixedly installed at the bottom of the installation platform 203, an output shaft of the winch 207 is fixedly connected with a cable winding roller 205, the cable winding roller 205 is fixedly connected to the bottom of the installation platform 203 through a support, a hoisting cable 206 is wound on the surface of the cable winding roller 205, a motor support 208 is arranged at the top of the installation platform 203, a bidirectional motor 210 is fixedly installed at the top of the motor support 208, an output shaft of the bidirectional motor 210 is fixedly connected with a rotating gear 209, and one side of the rotating gear 209 is meshed with the annular rack 202, the rotating gear 209 is positioned in the motor bracket 208, the rotating gear 209 is driven to rotate by the bidirectional motor 210, and the bidirectional motor 210 and the mounting platform 203 move along the track of the annular rack 202 along with the rotating gear 209 through the counterforce action exerted by the annular rack 202, and meanwhile, the curve sliding block 204 and the annular guide rail 201 are used as weighing and guiding devices to cooperate, so that the winch 207 can flexibly move in the horizontal plane direction to lift heavy objects, and the positioning is very accurate.

The liftable wheel 300 comprises a sliding chute 304, the sliding chute 304 is fixedly connected to the top of the fixed frame 101 and is close to the four corners, the top of the sliding chute 304 is connected with a top bearing of a threaded rod 303, the top of the threaded rod 303 penetrates through the top of the sliding chute 304 and is fixedly connected with a rotating disc 302, the bottom bearing of the threaded rod 303 is connected to the top of the fixed frame 101, a sliding block 305 is connected in the sliding chute 304 in a sliding manner, the sliding block 305 is in threaded connection with the threaded rod 303, a through groove 30401 is formed in the back surface of the sliding chute 304, a vehicle axle 306 is connected to the back bearing of the sliding block 305, the end of the vehicle axle 306 penetrates through the through groove 30401 and is fixedly connected with a roller 301, the rotating disc 302 is screwed to drive the threaded rod 303 to rotate, so that the sliding block 305 in threaded connection with the threaded rod 303 is driven to move up and down in the sliding chute 304, so that the roller 301 connected with the bearing of the sliding block 305 through the vehicle axle 306 can also lift up and down, thereby realizing the switching of the landing and the moving state of the fixed frame 101, the lifting track has the advantages that the lifting track is simple and convenient to operate, simple in structure, firm and not prone to damage, suitable for harsh construction environments and capable of being flexibly transferred by arranging the lifting wheels 300, each construction unit can conveniently and quickly allocate the lifting track flexibly according to construction conditions, the lifting track can be powered by the vehicle-mounted power supply or the generator, and the lifting track can be normally used in the field without a power supply.

The annular guide rail 201 comprises a linear guide rail 20101 and a ninety-degree arc-shaped rail 20102, the linear guide rail 20101 and the ninety-degree arc-shaped rail 20102 form a rectangular circular-bead annular guide rail, the annular rack 202 comprises a linear rack 20201 and a ninety-degree arc-shaped rack 20202, and the linear rack 20201 and the ninety-degree arc-shaped rack 20202 form a rectangular circular-bead annular rack.

The drill plate 110 is arranged at the position, close to the rear portion, of the fixed frame 101, a plurality of drill holes 111 are uniformly formed in the surface of the drill plate 110, the drill holes 111 are used for inserting drill rods, the drill rods are inserted into the drill plate 110 which is used for fixing the fixed frame 101 below the ground, so that a heavy object can be stably lifted by the lifting track, and when the cantilever frame 102 is in a non-support state, the lifting operation can be safely carried out by matching with the angle adjusting hydraulic cylinder 105 after the whole center is arranged backwards.

The top of the fixed frame 101 and the position close to the liftable wheel 300 are fixedly connected with a supporting column 107, the top of the supporting column 107 is fixedly connected with an installation foot plate 106, and the bearing frame 100 is fixedly installed on a vertical plane through the installation foot plate 106 and the expansion bolt.

Connecting plate 109104 is L shape, and one end is articulated with articulated ear two 113, the other end and the deep floor 103 fixed connection at the middle part of frame 102 of encorbelmenting, structure setting through the L shaped plate, make frame 102 of encorbelmenting can reach ninety degrees with fixed frame 101's folding contained angle under the drive of angle modulation pneumatic cylinder 105, this operation can make this hoist and mount track except can the horizontal installation operation, can also do the business on wall body or massif perpendicularly installing if the environment needs, greatly increased the practicality and to the practical ability of topography.

A hanging seat 112 is provided at the center of the rear portion of the fixed frame 101, and the hanging seat 112 is hung with a towing hook of the engineering truck.

One end of the hoisting cable 206 is provided with a lock catch.

The ring rail hoisting mechanism 200 is used for hoisting heavy objects and adjusting the distance from front to back, left to right.

The lifting wheels 300 are used for jacking the bearing frame 100, butt-joint with an engineering truck for delivery, and the bearing frame 100 falls on the ground by adjusting the height of the lifting wheels 300.

Specifically, when the hoisting track is used, the liftable wheels 300 are adjusted, the height position of the liftable wheels 300 above the ground is adjusted, so that the fixed frame 101 falls to the ground, the drill rods are inserted into the fixed frame 101 below the ground, the drill rods are pricked into the ground, and the drill plates 110 of the fixed frame 101 are fixed, so that the hoisting track can be stably and firmly fixed with the ground, then the weight is hoisted by operating the ring-shaped guide rail hoisting mechanism 200, the angle of the fixed frame 101 hinged to the cantilever frame 102 can be adjusted by adjusting the telescopic amount of the angle adjusting hydraulic cylinder 105 in the process, so that the height and the distance from a target ground are finely adjusted by the upward or downward cantilever frame 102 while the weight is hoisted by the ring-shaped guide rail hoisting mechanism 200, and finally the weight is hoisted or falls.

It should be noted that the specific model specifications of the angle modulation hydraulic cylinder 105, the winch 207 and the bidirectional motor 210 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art, so detailed description is omitted.

It should be noted that the power supply of the reclining hydraulic cylinder 105, the winch 207 and the bi-directional motor 210 and the principle thereof will be apparent to those skilled in the art and will not be described in detail herein.

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

Claims

1. The utility model provides a portable multi-functional annular hoist and mount track of encorbelmenting which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the angle adjusting hydraulic cylinder comprises a bearing frame (100), wherein the bearing frame (100) comprises a fixed frame (101), one end of the fixed frame (101) is hinged with an overhanging frame (102), the bottom of the overhanging frame (102) is provided with an annular guide rail hoisting mechanism (200), the top of the overhanging frame (102) is provided with a plurality of reinforcing rib plates (103) from the middle to two sides at equal intervals, the top of each reinforcing rib plate (103) in the middle of the overhanging frame (102) is fixedly connected with a connecting plate (104), a fixed plate (109) is arranged at the position, close to the middle, of the fixed frame (101), the top of the fixed plate (109) is provided with a first hinge lug (108), the first hinge lug (108) is hinged with the bottom of a cylinder body of an angle adjusting hydraulic cylinder (105), the end part of a shaft body of the angle adjusting hydraulic cylinder (105) is provided with a second hinge lug (113), and the shaft body of the angle adjusting hydraulic cylinder (105) is hinged with the end part of the connecting plate (104) through the second hinge lug (113), the left side and the right side of the fixed frame (101) and the positions close to the front side and the rear side are respectively provided with a lifting wheel (300);

the annular guide rail hoisting mechanism (200) comprises an annular guide rail (201), the annular guide rail (201) is fixedly installed at the bottom of the cantilever frame (102), a circle of annular rack (202) matched with the annular guide rail (201) in shape is arranged on the periphery of the inner annular wall of the annular guide rail (201) and close to the top of the annular guide rail, the bottom of the annular guide rail (201) is connected with a curve sliding block (204) in a sliding mode, an installation platform (203) is arranged at the bottom of the curve sliding block (204), a winch (207) is fixedly installed at the bottom of the installation platform (203), an output shaft of the winch (207) is fixedly connected with a cable winding roller (205), the cable winding roller (205) is fixedly connected to the bottom of the installation platform (203) through a support, and a hoisting cable (206) is wound on the surface of the cable winding roller (205), the top of the mounting platform (203) is provided with a motor support (208), the top of the motor support (208) is fixedly provided with a bidirectional motor (210), an output shaft of the bidirectional motor (210) is fixedly connected with a rotating gear (209), one side of the rotating gear (209) is meshed with the annular rack (202), and the rotating gear (209) is located inside the motor support (208).

2. The portable multifunctional overhanging ring-shaped hoisting track according to claim 1, characterized in that: liftable wheel (300) include spout (304), spout (304) fixed connection in the top of fixed frame (101) and the position department that is close to the four corners, the top of spout (304) is connected with the top bearing of threaded rod (303), the top of threaded rod (303) is passed the top fixedly connected with rolling disc (302) of spout (304), the bottom bearing of threaded rod (303) connect in the top of fixed frame (101), sliding connection has slider (305) in spout (304), slider (305) with threaded rod (303) threaded connection, logical groove (30401) have been seted up at the back of spout (304), the back bearing of slider (305) is connected with axletree (306), the tip of axletree (306) passes logical groove (30401) fixedly connected with gyro wheel (301).

3. The portable multifunctional overhanging ring-shaped hoisting track according to claim 2, characterized in that: the annular guide rail (201) comprises a linear guide rail (20101) and a ninety-degree arc-shaped rail (20102), the linear guide rail (20101) and the ninety-degree arc-shaped rail (20102) form a rectangular circular-bead annular guide rail, the annular rack (202) comprises a linear rack (20201) and a ninety-degree arc-shaped rack (20202), and the linear rack (20201) and the ninety-degree arc-shaped rack (20202) form a rectangular circular-bead annular rack.

4. The portable multifunctional overhanging ring-shaped hoisting track according to claim 3, characterized in that: the drill plate (110) is arranged at the position, close to the rear part, of the fixed frame (101), a plurality of drill holes (111) are uniformly formed in the surface of the drill plate (110), the drill holes (111) are used for inserting drill rods, and the drill rods are inserted into the ground to fix the fixed frame (101).

5. The portable multifunctional overhanging ring-shaped hoisting track according to claim 3, characterized in that: the top of fixed frame (101) just is close to liftable wheel (300) department fixedly connected with support column (107), the top fixedly connected with installation sole (106) of support column (107), bearing frame (100) pass through installation sole (106) and expansion bolts fixed mounting are on the vertical plane.

6. The portable multifunctional overhanging ring-shaped hoisting track according to claim 3, characterized in that: the connecting plate (104) is L-shaped, one end of the connecting plate is hinged with the second hinge lug (113), and the other end of the connecting plate is fixedly connected with the reinforcing rib plate (103) in the middle of the cantilever frame (102).

7. The portable multifunctional overhanging ring-shaped hoisting track according to claim 3, characterized in that: the middle of the rear part of the fixed frame (101) is provided with a hanging seat (112), and the hanging seat (112) is hung with a traction hook of an engineering truck.

8. The portable multifunctional overhanging ring-shaped hoisting track according to claim 3, characterized in that: one end of the hoisting cable (206) is provided with a lock catch.

9. The portable multifunctional overhanging ring-shaped hoisting track according to claim 1, characterized in that: the annular guide rail hoisting mechanism (200) is used for hoisting a heavy object and adjusting the distance between the front and the back and the left and the right.

10. The portable multifunctional overhanging ring-shaped hoisting track according to claim 1, characterized in that: the lifting wheels (300) are used for jacking the bearing frame (100), are in butt joint with an engineering truck for delivery, and enable the bearing frame (100) to fall to the ground by adjusting the height of the lifting wheels (300).