CN213059940U

CN213059940U - Pier hoisting machine with adjustable height

Info

Publication number: CN213059940U
Application number: CN202021163606.4U
Authority: CN
Inventors: 原贞华; 伍俊民; 胡旭东; 李珍西; 王朋; 朱兵; 陈忱
Original assignee: China Railway Engineering Machinery Research and Design Institute Co Ltd
Current assignee: China Railway Engineering Machinery Research and Design Institute Co Ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-04-27
Anticipated expiration: 2030-06-22

Abstract

The utility model provides a pier hoisting machine with adjustable height, include: a frame beam assembly including a cross beam; the hoisting mechanism is arranged on the frame beam assembly and used for hoisting the prefabricated bridge pier to be assembled; a leg assembly for supporting the frame beam assembly; the landing leg assembly comprises a splitting part and a landing leg part, the upper end of the splitting part is connected with the cross beam and penetrates through the end part of the cross beam, the lower end of the splitting part is detachably connected with the landing leg part, and the cross beam is suitable for moving on the splitting part and the landing leg part. The utility model discloses a landing leg assembly that the setting has division of tearing open and shank for hoisting machine height-adjustable has promoted the convenience of transportation when hoisting machine passes through limit for height topography such as the bridge opening of overline bridge.

Description

Pier hoisting machine with adjustable height

Technical Field

The utility model relates to a prefabricated pier erection equipment technical field particularly, relates to a pier hoisting machine with adjustable height.

Background

At present, the height of a hoisting machine for hoisting a pier is generally higher and is highly fixed, when the hoisting machine meets an overpass in the transportation process, the hoisting machine needs to be disassembled and transported through a special tool, and the transportation cost and the transportation difficulty of the hoisting machine are greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be: how to promote the convenience of transportation when pier hoisting machine passes through limit for height topography such as the bridge opening of overline bridge.

In order to solve the above problem, the utility model provides a pier hoisting machine with adjustable height, include:

a frame beam assembly including a cross beam;

the hoisting mechanism is arranged on the frame beam assembly and used for hoisting the prefabricated bridge pier to be assembled;

a leg assembly for supporting the frame beam assembly;

the landing leg assembly comprises a splitting part and a landing leg part, the upper end of the splitting part is connected with the cross beam and penetrates through the end part of the cross beam, the lower end of the splitting part is detachably connected with the landing leg part, and the cross beam is suitable for moving on the splitting part and the landing leg part.

Optionally, the splitting part includes a plurality of segments, and the segments are sequentially arranged from top to bottom and detachably connected to each other.

Optionally, the pier hoisting machine with the adjustable height further comprises a climbing mechanism, one end of the climbing mechanism is arranged at the end of the cross beam, the other end of the climbing mechanism is sleeved on the landing leg assembly, and the end of the cross beam is connected with the landing leg assembly in a sliding mode through the climbing mechanism.

Optionally, the climbing mechanism includes a positioning seat and a telescopic rod, the positioning seat is sleeved on the leg assembly and is slidably connected with the leg assembly, one end of the telescopic rod is fixed on the positioning seat, and the other end of the telescopic rod is fixed on the cross beam.

Optionally, the splitting part and the leg part are respectively provided with a positioning hole, and the positioning seat is detachably connected with the splitting part or the leg part through a locking structure at the positioning hole.

Optionally, two cross beams are provided, and the two ends of each cross beam are provided with the supporting leg assemblies; the frame beam assembly further comprises a main beam, wherein the main beam is arranged between the two cross beams, and the two ends of the main beam are respectively connected with the two cross beams.

Optionally, the height-adjustable bridge pier hoisting machine further comprises a traveling mechanism, the traveling mechanism comprises a frame and a wheel set, and the frame is used for connecting the wheel set and the leg portion; the running gear is adapted to rotate relative to the leg portion.

Optionally, the running mechanism further comprises an expansion piece arranged at one end of the frame far away from the leg portion, one end of the expansion piece is fixed on the frame, and the other end of the expansion piece is suitable for being supported on the ground or separated from the ground.

Optionally, the wheel set comprises a plurality of running wheels, and the telescopic member is located between the plurality of running wheels.

Optionally, the hoisting mechanism comprises a winch, a trolley, a lifting appliance and a transverse oil cylinder, the winch is arranged on the cross beam, the trolley is arranged on the main beam, and the lifting appliance is located below the trolley and is suitable for being connected with the precast pier to be assembled; one end of the transverse oil cylinder is fixed on the main beam, the other end of the transverse oil cylinder is fixed on the trolley, and the trolley is suitable for moving along the length direction of the main beam through the transverse oil cylinder on the main beam.

Compared with the prior art, the utility model, following beneficial effect has: the height of the landing leg assembly can be adjusted by arranging the detaching part and the landing leg part, so that the height of the hoisting machine can be adjusted, the hoisting machine can conveniently pass through height-limited terrains such as a bridge opening of an overpass by reducing the height, the transportation convenience of the hoisting machine passing through the height-limited terrains such as the bridge opening of the overpass is greatly improved, the hoisting machine is suitable for hoisting prefabricated piers to be spliced with different height specifications, and the application range of the hoisting machine is enlarged; additionally, the utility model discloses a hoisting machine can be as assembling the professional equipment of prefabricated pier, and adopt crawler crane or truck crane to carry out assembling of prefabricated pier among the prior art to compare, adopts the hoisting machine in this embodiment not to have set the position of hoisting machine in advance, also need not increase preparation work such as counter weight, so, has promoted the efficiency that the construction was assembled to prefabricated pier, has saved the engineering time.

Drawings

Fig. 1 is a schematic structural view of a height-adjustable bridge pier hoisting machine in an embodiment of the utility model;

fig. 2 is a schematic structural view of another view angle of the height-adjustable bridge pier hoisting machine in the embodiment of the present invention;

fig. 3 is a schematic structural view of another view angle of the height-adjustable bridge pier hoisting machine in the embodiment of the present invention;

fig. 4 is a schematic structural view of another view angle of the height-adjustable bridge pier hoisting machine in the embodiment of the present invention;

fig. 5(a) and 5(b) are schematic structural diagrams of a lifting pier column of a height-adjustable pier lifting machine in the embodiment of the present invention when a prefabricated pier is erected;

fig. 6(a) and fig. 6(b) are schematic structural diagrams of a pier column lifted by a height-adjustable pier hoisting machine when a prefabricated pier is erected in the embodiment of the present invention;

fig. 7(a) and 7(b) are schematic structural diagrams of the embodiment of the present invention, in which the transport vehicle leaves after the pier column is lifted by the height-adjustable pier hoisting machine when the prefabricated pier is erected;

fig. 8(a) and 8(b) are schematic structural diagrams of the pier column erected by the height-adjustable pier hoisting machine in the embodiment of the present invention when erecting a prefabricated pier;

fig. 9(a) and 9(b) are schematic structural views of the pier column assembled by the pier hoisting machine with adjustable height when erecting the prefabricated pier in the embodiment of the present invention;

fig. 10(a) and fig. 10(b) are schematic structural diagrams of the embodiment of the present invention, in which when erecting a prefabricated pier, the height-adjustable pier hoisting machine after assembling the pier column moves to the side of the abutment to be hoisted;

fig. 11(a) and 11(b) are schematic structural views illustrating the embodiment of the present invention in which the transportation vehicle transports the pier capping beam to enter the lower portion of the height-adjustable pier hoisting machine when erecting the precast pier;

fig. 12(a) and 12(b) are schematic structural diagrams illustrating a transporter adjusting a position of a pier capping beam when erecting a precast pier according to an embodiment of the present invention;

fig. 13(a) and fig. 13(b) are schematic structural views of a lifting pier capping beam of a height-adjustable pier lifting machine in the embodiment of the present invention when erecting a prefabricated pier;

fig. 14(a) and 14(b) are schematic structural views of the pier capping beam assembled by the pier hoisting machine with adjustable height when erecting the prefabricated pier in the embodiment of the present invention;

fig. 15(a) and fig. 15(b) are schematic structural diagrams of the height-adjustable bridge pier hoisting machine moving to the side of the abutment to be hoisted after the assembling of the bridge pier capping beam is completed when the prefabricated bridge pier is erected in the embodiment of the present invention;

fig. 16(a) and 16(b) are schematic structural diagrams illustrating the transportation vehicle transporting the pier end beam to enter the lower part of the height-adjustable pier hoisting machine when the prefabricated pier is erected according to the embodiment of the present invention;

fig. 17(a) and 17(b) are schematic structural diagrams illustrating a transportation vehicle adjusting a position of an end beam of a precast pier when the precast pier is erected according to an embodiment of the present invention;

fig. 18(a) and 18(b) are schematic structural diagrams of a lifting pier end beam of a height-adjustable pier lifting machine in the embodiment of the present invention when a prefabricated pier is erected;

fig. 19(a) and 19(b) are schematic structural views of the pier end beam assembled by the pier hoisting machine with adjustable height when erecting the prefabricated pier in the embodiment of the present invention;

fig. 20(a) and fig. 20(b) are schematic structural diagrams of the embodiment of the present invention, in which the height-adjustable bridge pier hoisting machine after assembling the bridge pier end beams moves to the side of the abutment to be hoisted when erecting the prefabricated bridge pier;

fig. 21(a) and 21(b) are schematic structural views illustrating an embodiment of the present invention in which a transportation vehicle transports another bridge pier end beam into a position below a height-adjustable bridge pier hoisting machine when erecting a prefabricated bridge pier;

fig. 22(a) and 22(b) are schematic structural diagrams illustrating a transporter adjusting a position of an end beam of a prefabricated pier when the other pier is erected according to an embodiment of the present invention;

fig. 23(a) and 23(b) are schematic structural views of a height-adjustable bridge pier hoisting machine hoisting another bridge pier end beam when erecting a prefabricated bridge pier in the embodiment of the present invention;

fig. 24(a) and fig. 24(b) are schematic structural views of another pier end beam assembled by the height-adjustable pier hoisting machine when the prefabricated pier is erected according to the embodiment of the present invention;

fig. 25(a) and 25(b) are schematic structural diagrams of the embodiment of the present invention, after the erection of the prefabricated pier is completed, the height-adjustable pier hoisting machine moves to the side of the pier to be hoisted;

fig. 26(a) and 26(b) are schematic structural diagrams of the embodiment of the present invention when the height-adjustable bridge pier hoisting machine is ready to move to the next pier to be hoisted after the erection of the prefabricated bridge pier is completed;

fig. 27 is a schematic structural view of the height-adjustable bridge pier hoisting machine according to the embodiment of the present invention, which unloads the upper segment and installs the upper segment on the transportation vehicle when passing through the height-limited terrain such as the bridge opening of the overpass;

fig. 28 is a schematic structural view showing that the leg assembly is disconnected from the traveling mechanism when the height-adjustable bridge pier hoisting machine passes through height-limited terrains such as a bridge opening of an overpass in the embodiment of the present invention;

fig. 29 is a schematic structural view showing that the leg assembly is separated from the traveling mechanism when the height-adjustable bridge pier hoisting machine passes through height-limited terrains such as a bridge opening of an overpass in the embodiment of the present invention;

fig. 30 is a schematic structural view showing that the transportation vehicle transports the frame beam assembly and the leg assembly away from the traveling mechanism when the height-adjustable bridge crane passes through the height-limited terrain such as the bridge opening of the overpass in the embodiment of the present invention;

fig. 31 is a schematic structural view illustrating a structure in which the leg assembly is supported on the ground when the height-adjustable bridge pier hoisting machine of the embodiment of the present invention passes through a height-limited terrain such as a bridge opening of an overpass;

fig. 32 is a schematic structural view illustrating that when the height-adjustable bridge pier hoisting machine of the embodiment of the present invention passes through a height-limited terrain such as a bridge opening of an overpass, a middle segment is detached and mounted on a transportation vehicle;

fig. 33 is the embodiment of the utility model provides an in the embodiment when height-adjustable pier hoisting machine passes through limit for height topography such as the bridge opening of overline bridge, pier hoisting machine's with adjustable transport vechicle transportation height schematic diagram.

Description of reference numerals:

1-frame beam assembly, 11-cross beam, 12-main beam; 2-hoisting mechanism, 21-winch, 22-crane trolley, 23-sling; 3-leg assembly, 31-upper section, 32-middle section, 33-leg part, 34-positioning hole; 4-running mechanism, 41-frame, 42-wheel group, 43-telescopic part; 5-climbing mechanism, 51-positioning seat, 511-matching hole and 52-telescopic rod; 71-pier upright columns, 72-pier capping beams and 73-pier end beams; 8-transport vehicle.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the coordinate system XYZ provided herein, the X axis represents forward, the X axis represents backward, the Y axis represents forward, the Y axis represents leftward, the Z axis represents forward, and the Z axis represents backward. Also, it is noted that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

Combine fig. 1-4 to show, the embodiment of the utility model provides a pier hoisting machine with adjustable height, include: a frame beam assembly 1 comprising a cross beam 11; the hoisting mechanism 2 is arranged on the frame beam assembly 1 and used for hoisting the precast pier to be assembled; a leg assembly 3 for supporting the frame beam assembly 1; the leg assembly 3 comprises a split section, the upper end of which is connected to the cross beam 11 and extends through the end of the cross beam 11, and a leg section 33, the lower end of which is detachably connected to the leg section 33, and the cross beam 11 is adapted to move over the split section and the leg section 33.

In this embodiment, the movement of the height-adjustable pier hoisting machine (hereinafter referred to as hoisting machine) in the assembling process of the prefabricated pier can be controlled manually or controlled mechanically, for example, by arranging a control mechanism on the hoisting machine, electrically connecting components such as the hoisting mechanism 2 and the like with the control mechanism, and controlling the movement of the hoisting machine in the assembling process of the prefabricated pier by using the control mechanism, so as to improve the automation degree of the hoisting machine and the construction efficiency of the hoisting machine. The landing leg assembly 3 of hoisting machine is used for supporting frame roof beam assembly 1, strengthens hoisting machine holistic structural strength to guarantee the hoisting mechanism 2 who sets up on frame roof beam assembly 1 the stability when lifting by crane and waiting to assemble prefabricated pier, and guarantee the stability when hoisting machine removes and transports.

The upper end of the splitting part (i.e., the end of the splitting part located in the positive Z-axis direction in fig. 1) is connected to the cross beam 11 and penetrates the end of the cross beam 11, and the lower end of the splitting part (i.e., the end of the splitting part located in the reverse Z-axis direction in fig. 1) is detachably connected to the leg part 33, i.e., the splitting part is located above the leg part 33 (i.e., the positive Z-axis direction in fig. 1); in this way, the height of the leg assembly 3 (i.e. the dimension of the leg assembly 3 in the Z-axis direction in fig. 1) can be adjusted by detaching or installing the detaching part, so that the height of the hoisting machine can be adjusted; moreover, the disassembly part is disassembled to enable the whole height of the hoisting machine to be lowered, so that the hoisting machine can conveniently pass through the height-limited terrains such as the bridge opening of the overpass, the hoisting machine does not need to be disassembled, the convenience of transportation of the hoisting machine when passing through the height-limited terrains such as the bridge opening of the overpass is greatly improved, and the transportation cost of the hoisting machine is saved. In addition, the splitting part of the leg assembly 3 and the leg part 33 are coaxially arranged, so that the cross beam 11 can move on the splitting part and the leg part 33, that is, the end part of the cross beam 11 is suitable for moving on the splitting part and the leg part 33 along the length direction (namely, the Z-axis direction in fig. 1) of the leg assembly 3, and the position of the end part of the cross beam 11 on the leg assembly 3 can be adjusted, so that the heights from the frame beam assembly 1 and the hoisting mechanism 2 to the ground (namely, the distances from the frame beam assembly 1 and the hoisting mechanism 2 to the ground) can be adjusted, the hoisting machine is suitable for hoisting and assembling prefabricated piers to be assembled with different heights (namely, various prefabricated piers to be assembled with different sizes are arranged in the Z-axis direction in fig. 1), and the application range of the hoisting machine is increased.

The part and the shank portion 33 are torn open through setting up to the hoisting machine of this embodiment for landing leg assembly 3's height-adjustable, thereby make the height-adjustable of hoisting machine, so that the hoisting machine is through reducing limit for height topography such as the bridge opening that highly comes through the overline bridge, the convenience of transportation when greatly having promoted the hoisting machine through limit for height topography such as the bridge opening of overline bridge, and make the hoisting machine be suitable for to lift treating of different high specifications and assemble prefabricated pier, the application scope of hoisting machine has been increased.

Optionally, the splitting part includes a plurality of segments, and the plurality of segments are sequentially arranged from top to bottom and detachably connected to each other.

The splitting part is provided with a plurality of segments which are arranged from top to bottom and detachably connected with each other, and for convenience of description, the splitting part is described below to comprise an upper segment 31 and a middle segment 32, wherein at least one middle segment 32 is provided; middle section 32 is located between upper section 31 and leg portion 33, i.e. upper section 31 is located at the upper end of middle section 32 (i.e. upper section 31 is located at the end of middle section 32 located in the positive direction of the Z axis in fig. 1), leg portion 33 is located at the lower end of middle section 32 (i.e. leg portion 33 is located at the end of middle section 32 located in the opposite direction of the Z axis in fig. 1), the end of leg portion 33 away from middle section 32 is used for supporting on the ground or connecting with running mechanism 4 (described later), and leg portion 33 plays a supporting role for upper section 31 and middle section 32. The middle segment 32 is at least provided with one, so, the number of the middle segment 32 can be increased (decreased) by increasing (decreasing) the height of the landing leg assembly 3, the number of the middle segment 32 can be increased (decreased) by increasing (decreasing) the height of the hoisting machine, the hoisting machine can hoist and assemble prefabricated piers to be assembled with different height specifications, the application range of the hoisting machine is further expanded, and the limitation that the existing hoisting machine is only suitable for hoisting piers located in a specific height range due to height fixation is overcome.

Optionally, as shown in fig. 1 and fig. 2, two cross beams 11 are provided, and two ends of each cross beam 11 are provided with the leg assemblies 3; the frame beam assembly 1 further comprises a main beam 12, wherein the main beam 12 is arranged between the two cross beams 11, and two ends of the main beam 12 are respectively connected with the two cross beams 11.

The frame beam assembly 1 comprises two beams 11 and two main beams 12, the two beams 11 are parallel to each other, the main beams 12 are arranged between the two beams 11, and two ends of each main beam 12 are respectively connected with the two beams 11, so that the structural strength of the frame beam assembly 1 is improved. One or more main beams 12 are provided, preferably two main beams 12 are provided in this embodiment, and the two main beams 12 are parallel to each other and perpendicular to the cross beam 11 to ensure the structural strength of the frame beam assembly 1, and the two main beams 12 are both provided with hoisting mechanisms 2 so as to facilitate the hoisting machine to perform various operations on the precast pier to be assembled (for example, rotating and erecting the hoisted precast pier to be assembled); the two ends of each cross beam 11 are respectively provided with one landing leg assembly 3, namely the landing leg assemblies 3 are provided with four, so that the supporting capacity of the landing leg assemblies 3 on the frame beam assembly 1 is improved, and the integral stability of the bridge pier hoisting machine when the hoisting machine is hoisted to be assembled through the hoisting mechanism 2 is guaranteed. Furthermore, a running gear 4 (described later) may be provided at the lower end of each leg assembly 3 to facilitate movement of the hoist. And, crossbeam 11 perpendicular to landing leg assembly 3 for the hoisting machine is the door frame structure, and hoisting machine below has certain space, and the transport vechicle 8 of being convenient for gets into hoisting machine below and hoisting machine lifts by crane and assembles below and wait to assemble prefabricated pier.

Further, the main beam 12 may be disposed between the two cross beams 11, and may also be disposed above or below the two cross beams 11, which is not specifically limited in this embodiment.

Optionally, as shown in fig. 1, the pier hoisting machine with adjustable height further includes a climbing mechanism 5, one end of the climbing mechanism 5 is disposed at an end of the cross beam 11, the other end of the climbing mechanism 5 is sleeved on the landing leg assembly 3, and the end of the cross beam 11 is slidably connected to the landing leg assembly 3 through the climbing mechanism 5.

Climbing mechanism 5 is used to connect cross beam 11 and leg assembly 3, and to achieve a sliding connection between the end of cross beam 11 and leg assembly 3. Specifically, one end of the climbing mechanism 5 connected with the landing leg assembly 3 is sleeved on the landing leg assembly 3, so that the height of the cross beam 11 (namely the distance from the cross beam 11 to the ground) is changed by changing the position of the climbing mechanism 5 on the landing leg assembly 3, the height of the frame beam assembly 1 is changed, the hoisting machine is suitable for hoisting prefabricated piers to be assembled with different heights, and the application range of the hoisting machine is further expanded; and one end of the climbing mechanism 5 connected with the landing leg assembly 3 is suitable for locking the landing leg assembly 3, so that the climbing mechanism 5 is positioned on the landing leg assembly 3, the frame beam assembly 1 is prevented from moving downwards due to overweight load when the hoisting machine hoists the precast pier to be assembled through the hoisting mechanism 2, and the stability of the hoisting machine during working is ensured.

Optionally, as shown in fig. 1 and 4, the climbing mechanism 5 includes a positioning seat 51 and a telescopic rod 52, the positioning seat 51 is sleeved on the leg assembly 3 and is slidably connected with the leg assembly 3, one end of the telescopic rod 52 is fixed on the positioning seat 51, and the other end is fixed on the cross beam 11.

A positioning seat 51 of the climbing mechanism 5 is sleeved on the landing leg assembly 3 and is in sliding connection with the landing leg assembly 3, and the positioning seat 51 is suitable for locking the landing leg assembly 3 so as to realize the positioning of the climbing mechanism 5 on the landing leg assembly 3; the telescopic rod 52 is suitable for stretching in the Z-axis direction in fig. 1, and is used for adjusting the height of the frame beam assembly 1 (i.e. the distance from the frame beam assembly 1 to the ground); based on positioning seat 51 and landing leg assembly 3 sliding connection, through setting up telescopic link 52 for in certain extent (the flexible scope of telescopic link 52), only need can adjust the height of frame roof beam assembly 1 through flexible telescopic link 52, and need not through the position of adjustment positioning seat 51 at landing leg assembly 3, greatly promoted the convenience of hoisting machine construction.

Alternatively, as shown in fig. 1 and 4, the positioning holes 34 are formed on the splitting part and the leg part 33, and the positioning seat 51 and the splitting part or the leg part 33 are adapted to be detachably connected by a locking structure at the positioning holes 34.

The positioning seat 51 of the climbing mechanism 5 locks the landing leg assembly 3 through a locking structure to realize the positioning of the climbing mechanism 5 on the landing leg assembly 3, thereby realizing the positioning of the frame beam assembly 1; the locking structure includes a locking device or fastener (e.g., a pin) that releasably connects the positioning socket 51 to the detachable portion or leg 33 by extending into the positioning hole 34. Specifically, when the locking structure is a pin locking device, the pin locking device is disposed on the positioning seat 51, and the pin locking device has an insertion portion adapted to be extended and retracted, the insertion portion is disposed on a side of the positioning seat 51 facing the leg assembly 3, when the positioning seat 51 of the climbing mechanism 5 moves to a corresponding position on the leg assembly 3, the insertion portion is opposite to the positioning hole 34 at the position, and the insertion portion of the pin locking device is extended to be inserted into the positioning hole 34, so as to complete the positioning of the climbing mechanism 5 on the leg assembly 3; when the locking structure is a fastener, the positioning seat 51 is provided with a fitting hole 511 matched with the positioning hole 34, when the positioning seat 51 of the climbing mechanism 5 moves to a corresponding position on the leg assembly 3, the fitting hole 511 is opposite to the positioning hole 34 at the position, and the positioning of the climbing mechanism 5 on the leg assembly 3 is completed by inserting the fastener into the positioning hole 34 and the fitting hole 511. So, through the position of locking positioning seat 51 on landing leg assembly 3, guaranteed the stability of hoisting machine during operation.

Optionally, as shown in fig. 1 and 3, the height-adjustable pier hoisting machine further includes a traveling mechanism 4, the traveling mechanism 4 includes a frame 41 and a wheel set 42, the frame 41 is used for connecting the wheel set 42 and the leg portion 33; the running gear 4 is adapted to rotate relative to the leg 33.

The walking mechanism 4 is arranged at the lower end of the supporting leg assembly 3, is connected with the supporting leg part 33 of the supporting leg assembly 3 and is used for driving the supporting leg assembly 3 to move; the wheel set 42 is arranged at one end of the frame 41 far away from the leg part 33, is contacted with the ground and is used for realizing the running of the running mechanism 4; the running gear 4 is adapted to rotate relative to the leg 33, either the frame 41 and the set of wheels 42 as a whole relative to the leg 33 or only the set of wheels 42 relative to the leg 33, so as to facilitate steering of the hoist by rotating the running gear 4 when it is moved. In addition, the cross beam 11 and the main beam 12 based on the frame beam assembly 1 are perpendicular to each other, so that the traveling mechanism 4 drives the hoisting machine to perform transverse movement or longitudinal movement on the prefabricated pier assembling site, and the prefabricated pier to be assembled, which is hoisted by the hoisting mechanism 2, is accurately assembled on an abutment to be hoisted (i.e. a foundation for installing the prefabricated pier to be assembled, which is not shown in the figure); here, the lateral movement refers to movement in the longitudinal direction of the main beam 12 (i.e., the X-axis direction in fig. 1), and the longitudinal movement refers to movement in the longitudinal direction of the cross beam 11 (i.e., the Y-axis direction in fig. 1). Moreover, the travelling mechanism 4 is arranged, so that the hoisting machine can be used as special equipment for assembling the prefabricated bridge pier, and the hoisting machine hoists the prefabricated bridge pier to be assembled through the hoisting mechanism 2 so as to move the prefabricated bridge pier to be assembled to the abutment to be assembled for assembling; compared with the assembly of the prefabricated bridge pier by adopting a crawler crane or a truck crane in the prior art, the position of the hoisting machine does not need to be set in advance by adopting the hoisting machine in the embodiment, and preparation work such as counterweight addition is not needed, so that the assembly construction efficiency of the prefabricated bridge pier is improved, and the construction time is saved.

Further, in the embodiment, it is preferable that the wheel set 42 is adapted to rotate relative to the leg portion 33 to reduce the difficulty of rotation of the running mechanism 4, and the rotation angle of the wheel set 42 is within a range of 90 ° ± 10 °, so as to prevent the problem that the sling is switched from the longitudinal movement to the lateral movement (or from the lateral movement to the longitudinal movement) when the rotation angle of the wheel set 42 is too small (i.e. when the rotation angle of the wheel set 42 is less than 80 °), and to prevent the difficulty of design and manufacture of the running mechanism 4 from increasing when the rotation angle of the wheel set 42 is too large (i.e. when the rotation angle of the wheel set 42 is greater than 100 °).

Optionally, as shown in fig. 1 and 3, the running gear 4 further comprises a telescopic member 43 disposed at one end of the frame 41 far from the leg portion 33, and one end of the telescopic member 43 is fixed to the frame 41 and the other end is adapted to be supported on or separated from the ground.

In the embodiment, the telescopic piece 43 is suitable for being telescopic, when the hoisting machine moves, the telescopic piece 43 is separated from the ground, when the hoisting machine hoists the precast pier to be assembled, the telescopic piece 43 is supported on the ground to support the landing leg assembly 3, so that the wheel set 42 is prevented from being crushed or the wheel set 42 is prevented from slipping and moving due to overweight load when the hoisting machine hoists the precast pier to be assembled through the hoisting mechanism 2, and the stability of the hoisting machine during working is ensured; and the setting of extensible member 43 has made things convenient for wheelset 42 to rotate, that is to say, when extensible member 43 supported on ground, wheelset 42 received the pressure reduction or disappearance of landing leg assembly 3 and frame beam assembly 1 (wheelset 42 was unsettled this moment), thereby be convenient for wheelset 42 to rotate in order to realize the steering of running gear 4.

Optionally, the wheelset 42 includes a plurality of running wheels with the telescoping member 43 located therebetween.

The wheel set 42 comprises a plurality of running wheels to increase the contact area of the running mechanisms 4 with the ground, so as to ensure the stability of the hoisting machine at each running mechanism 4; the extensible member 43 is positioned between the plurality of running wheels, so that the extensible member 43 and the landing leg assembly 3 are arranged coaxially, and the supporting effect on the landing leg assembly 3 when the extensible member 43 is supported on the ground is ensured. Through setting up extending member 43 and a plurality of walking wheel for a plurality of walking wheels and extending member 43 all can regard as the fulcrum when hoisting machine lifts by crane mechanism 2 and waits to assemble prefabricated pier, have guaranteed the stability of the during operation fuselage of hoisting machine, have increased security and the reliability during hoisting machine construction.

Optionally, as shown in fig. 1 to 4, the hoisting mechanism 2 includes a hoist 21, a trolley 22, a spreader 23 and a traversing cylinder, the hoist 21 is disposed on the cross beam 11, the trolley 22 is disposed on the main beam 12, and the spreader 23 is located below the trolley 22 and is adapted to be connected to a precast pier to be assembled; one end of the transverse oil cylinder is fixed on the main beam 12, the other end of the transverse oil cylinder is fixed on the trolley 22, and the trolley 22 is suitable for moving along the length direction of the main beam 12 through the transverse oil cylinder on the main beam 12.

In this embodiment, two main beams 12 are preferably provided, and preferably, two lifting mechanisms 2 are provided on each main beam 12, the trolley 22 of each lifting mechanism 2 is connected with one traversing cylinder, and the trolley 22 is driven to translate on the main beam 12 along the length direction of the main beam 12 (i.e., the X-axis direction in fig. 1) by the extension and retraction of the traversing cylinder, so as to adjust the position of the trolley 22 on the main beam 12 or the distance between the two trolleys 22, so as to meet the requirement of hoisting operation; the lifting appliance 23 is located below the crane trolley 22 and used for being connected with the precast pier to be assembled when the precast pier to be assembled is lifted, the winch 21, the crane trolley 22 and the lifting appliance 23 are sequentially connected through a rope or a chain, the lifting appliance 23 moves along with the crane trolley 22 in the length direction of the main beam 12, the movement of the lifting appliance 23 in the length direction of the main beam 12 is achieved, and the movement of the lifting appliance 23 in the length direction of the landing leg assembly 3 is achieved through unreeling or reeling of the rope (or the chain) through the winch 21.

Further, the hoist 21 may be disposed on the main beam 12 and located at an end of the main beam 12.

Further, the end of the traversing cylinder far away from the trolley 22 can also be fixed on the cross beam 11.

Fig. 5-26, wherein fig. 5(a) to 26(a) are left side views of fig. 5(b) to 26(b), respectively; when the height-adjustable bridge pier hoisting machine is used for erecting the prefabricated bridge piers, the height-adjustable bridge pier hoisting machine can be realized by the following modes:

before the pier assembling work is carried out, the hoisting machine is moved to the side of the pier to be hoisted;

the travelling mechanism 4 of the hoisting machine drives the hoisting machine to move to the side of a pier to be hoisted, the transport vehicle 8 transports the pier upright 71 to enter the lower part of the hoisting machine, the hoisting mechanism 2 of the hoisting machine hoists the pier upright 71, and the transport vehicle 8 exits the lower part of the hoisting machine and returns to a beam field to take beams (it is worth explaining that a plurality of transport vehicles 8 can also respectively transport the pier upright 71, the pier capping beam 72 and the pier end beam 73);

erecting the pier upright column 71 through the retraction and extension action of the hoisting machine; moving the hoisting machine to the position above the abutment to be hoisted, and installing the pier column 71 on the abutment to be hoisted;

the travelling mechanism 4 drives the hoisting machine to move to the side of a pier to be hoisted, the transport vehicle 8 transports the pier capping beam 72 to enter the lower part of the hoisting machine, the rotary disc of the transport vehicle 8 rotates to adjust the position until the two ends of the pier capping beam 72 placed on the rotary disc are positioned below the same main beam 12, the hoisting mechanism 2 of the hoisting machine hoists the pier capping beam 72, and the transport vehicle 8 exits the lower part of the hoisting machine and returns to a beam field to take the beam;

the hoisting machine moves to the position above the abutment to be hoisted, and the pier capping beam 72 is spliced to the pier upright 71;

the travelling mechanism 4 drives the hoisting machine to move to the side of a pier to be hoisted, the transport vehicle 8 transports the pier end beam 73 to enter the lower part of the hoisting machine, the rotary disc of the transport vehicle 8 rotates to adjust the position until the two ends of the pier end beam 73 placed on the rotary disc are positioned below the same main beam 12, the hoisting mechanism 2 of the hoisting machine hoists the pier end beam 73, and the transport vehicle 8 exits the lower part of the hoisting machine and returns to a beam yard to take the beam;

the hoisting machine moves to the position above the abutment to be hoisted, and the pier end beam 73 is spliced to the pier capping beam 72;

the travelling mechanism 4 drives the hoisting machine to move to the side of the pier to be hoisted, the transport vehicle 8 transports another pier end beam 73 to enter the lower part of the hoisting machine, the rotary disc of the transport vehicle 8 rotates to adjust the position until the two ends of the pier end beam 73 placed on the rotary disc are positioned below the same main beam 12, the hoisting mechanism 2 of the hoisting machine hoists the pier end beam 73, and the transport vehicle 8 exits the lower part of the hoisting machine and returns to a beam yard to take the beam;

the hoisting machine moves to the position above the abutment to be hoisted, and the pier end beam 73 is spliced to the pier capping beam 72; thus, the hoisting machine completes the assembly work of one pier;

the traveling mechanism 4 drives the hoisting machine to move to a position away from the abutment where the assembly of the pier is completed;

and the walking mechanism 4 rotates by 90 degrees and drives the hoisting machine to move to the side of the next pier to be hoisted so as to continuously finish the assembling work of each part of the prefabricated pier at the next pier to be hoisted.

Wherein, pier stand 7 is the horizontality when being hoisted, through hoisting mechanism 3 receive and release the action, and the monkey 32 on the back girder upwards contracts hoist 33 promptly, and the monkey 32 on the front girder descends hoist 33 downwards for pier stand 7 becomes vertical state by the horizontality, assembles with pier 6 with the convenience. Therefore, the hoisting machine can complete the assembly of each segment of the prefabricated pier in the mode.

As shown in fig. 27 to 33, when the hoist is provided with the running mechanism 4 and the splitting portion includes a plurality of segments (for convenience of description, the splitting portion includes an upper segment 31 and a middle segment 32, in which at least one middle segment 32 is provided), the hoisting machine for an adjustable pier can be implemented by, for example, the following means when the hoist for an adjustable pier is used through a limited-height terrain such as a bridge opening of an overpass:

the frame beam assembly 1 of the height-adjustable pier hoisting machine falls, the upper section 31 of the landing leg assembly 3 of the height-adjustable pier hoisting machine is dismounted, the upper section 31 is installed on the transport vehicle 8 to serve as a bracket, and the transport vehicle 8 runs to the position below the height-adjustable pier hoisting machine;

the frame beam assembly 1 continuously falls to a main beam 12 of the frame beam assembly 1 and falls onto the bracket, the connection between the landing leg assembly 3 and the walking mechanism 4 is disconnected, and the transport vehicle 8 lifts the frame beam assembly 1 until the landing leg assembly 3 is separated from the walking mechanism 4;

the transport vehicle 8 moves to one side of the walking mechanism 4, the frame beam assembly 1 falls to the leg part 33 of the leg assembly 3 to be supported on the ground, the frame beam assembly 1 is separated from the bracket, the transport vehicle 8 leaves the position below the bridge pier hoisting machine with the adjustable height, and the upper section 31 arranged on the transport vehicle 8 is unloaded;

the middle section 32 of the landing leg assembly 3 is detached, the middle section 32 is installed on the transport vehicle 8, the transport vehicle 8 moves to the position below the bridge pier hoisting machine with the adjustable height, the frame beam assembly 1 is jacked up, the leg portions 33 of the landing leg assembly 3 leave the ground, and the transport vehicle 8 transports the bridge pier hoisting machine with the adjustable height to pass through a bridge opening of the overpass.

Wherein, at least one middle section 32 is arranged; when the middle segment 32 is provided in plural, the heights of the plural middle segments 32 may be equal or may not be equal. Therefore, when one of the middle sections 32 is provided, the middle section 32 of the leg assembly 3 is detached and the middle section 32 is mounted on the carrier vehicle 8 when the end of the cross member 11 is moved along the leg assembly 3 to the leg portion 33; when the number of the middle sections 32 is plural, when one or more middle sections 32 exist at the end of the cross beam 11 moving along the leg assembly 3 to above the end of the cross beam 11, removing the one or more middle sections 32 of the leg assembly 3 above the end of the cross beam 11, and installing the middle sections 32 on the transport vehicle 8, wherein when the plurality of middle sections 32 are removed, if the heights of the plurality of removed middle sections 32 are consistent, one of the plurality of removed middle sections is optionally installed on the transport vehicle 8, and if the heights of the plurality of removed middle sections 32 are inconsistent, the shorter one of the plurality of removed middle sections is selected to be installed on the transport vehicle 8; so for when installing middle segment 32 on transport vechicle 8 as new bracket support frame roof beam assembly 1, the whole height of hoisting machine on transport vechicle 8 is lower, with the bridge opening of guaranteeing that the hoisting machine passes through the overline bridge smoothly. After the middle section 32 is mounted on the carrier vehicle 8, the carrier vehicle 8 moves to below the frame beam assembly 1 and lifts the frame beam assembly 1 to the leg portion 33 of the leg assembly 3 off the ground, thereby transporting the hoist through the bridge opening of the overpass. It is worth noting that the hoist has a plurality of leg assemblies 3, and the operation of the upper section 31, the middle section 32 and the leg portion 33 on the plurality of leg assemblies 3 should be kept consistent.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims

1. The utility model provides a pier hoisting machine with adjustable height which characterized in that includes:

a frame beam assembly (1) comprising a cross beam (11);

the hoisting mechanism (2) is arranged on the frame beam assembly (1) and used for hoisting the precast pier to be assembled;

a leg assembly (3) for supporting the frame beam assembly (1);

the supporting leg assembly (3) comprises a splitting part and a supporting leg part (33), the upper end of the splitting part is connected with the cross beam (11) and penetrates through the end part of the cross beam (11), the lower end of the splitting part is detachably connected with the supporting leg part (33), and the cross beam (11) is suitable for moving on the splitting part and the supporting leg part (33).

2. The pier hoisting machine with the adjustable height of claim 1, wherein the splitting part comprises a plurality of segments, and the segments are sequentially arranged from top to bottom and detachably connected with each other.

3. The pier hoisting machine with the adjustable height of claim 1, further comprising a climbing mechanism (5), wherein one end of the climbing mechanism (5) is arranged at the end of the cross beam (11), the other end of the climbing mechanism (5) is sleeved on the leg assembly (3), and the end of the cross beam (11) is slidably connected with the leg assembly (3) through the climbing mechanism (5).

4. The pier hoisting machine with adjustable height of claim 3, wherein the climbing mechanism (5) comprises a positioning seat (51) and a telescopic rod (52), the positioning seat (51) is sleeved on the leg assembly (3) and is slidably connected with the leg assembly (3), one end of the telescopic rod (52) is fixed on the positioning seat (51), and the other end of the telescopic rod is fixed on the cross beam (11).

5. The pier hoisting machine with adjustable height of claim 4, wherein the splitting part and the leg part (33) are provided with positioning holes (34), and the positioning seat (51) and the splitting part or the leg part (33) are adapted to be detachably connected at the positioning holes (34) through locking structures.

6. The pier hoisting machine with adjustable height of any one of claims 1 to 5, wherein there are two beams (11), and the two ends of each beam (11) are provided with the leg assemblies (3); the frame beam assembly (1) further comprises a main beam (12), wherein the main beam (12) is arranged between the two cross beams (11), and two ends of the main beam (12) are respectively connected with the two cross beams (11).

7. The pier hoisting machine with adjustable height of any one of claims 1-5, further comprising a running mechanism (4), wherein the running mechanism (4) comprises a frame (41) and a wheel set (42), and the frame (41) is used for connecting the wheel set (42) with the leg portion (33); the running gear (4) is adapted to rotate relative to the leg (33).

8. The pier hoisting machine with adjustable height of claim 7, wherein the running mechanism (4) further comprises an expansion piece (43) disposed at one end of the frame (41) far away from the leg portion (33), and one end of the expansion piece (43) is fixed on the frame (41) and the other end is adapted to be supported on or separated from the ground.

9. The pier hoisting machine with adjustable height of claim 8, wherein the wheel set (42) comprises a plurality of running wheels, and the telescopic member (43) is located between the plurality of running wheels.

10. The pier hoisting machine with the adjustable height of claim 6, wherein the hoisting mechanism (2) comprises a hoist (21), a crane trolley (22), a sling (23) and a traversing cylinder, the hoist (21) is arranged on the cross beam (11), the crane trolley (22) is arranged on the main beam (12), and the sling (23) is positioned below the crane trolley (22) and is suitable for being connected with the pier prefabrication to be assembled; one end of the transverse oil cylinder is fixed on the main beam (12), the other end of the transverse oil cylinder is fixed on the trolley (22), and the trolley (22) is suitable for moving along the length direction of the main beam (12) through the transverse oil cylinder on the main beam (12).