Column Bending Moment Self-Adaptive Balance Mechanism

Abstract

A column bending moment self-adaptive balancing mechanism, comprising: a column, a goosehead, a working device, a lever-type balancing mechanism, a hoisting wire rope and a back rope, the goosehead comprises a goosehead bracket attached to the column and a front fixed pulley set attached to the front end of the goosehead bracket, the working device is attached to the column, the lever-type balancing mechanism is hinged to the goosehead bracket, the hoisting wire rope is inserted into the goosehead bracket and then reciprocally threaded through the front fixed pulley set and the movable pulley set of the working device, then inserted into one end of the lever-type balancing mechanism and then fixed to the goosehead bracket, and the back rope is connected to the other end of the lever-type balancing mechanism. Compared with the prior art, the column bending moment self-adaptive balancing mechanism provided by the present invention can self-adaptively reduce the column bending moment, improve the stability of the column, reduce the deformation of the column, and improve the hole-forming quality of the equipment.

Description

Technical Field

[0001] This application claims the priority of a Chinese patent application filed with the China National Patent Office on December 28, 2021, with the application number 202111633140.9 and the application title "Column Bending Moment Self-Adaptive Balance Mechanism", and all its contents are incorporated herein by reference.

[0002] This application relates to the technical field of construction machinery, and particularly to a column bending moment self-adaptive balance mechanism.

Background Art

[0003] As an indispensable mechanical equipment for modern pile foundation construction, the pile frame generally mounts different auxiliary working devices such as diesel hammers, hydraulic hammers, vibration hammers, vibration impact hammers, deep mixers, sleeve drivers, long auger drivers, etc. to perform "pile driving" construction.

[0004] The column is an important component of the pile frame and is used to support the working device and the tensile force during construction. With the continuous development of the construction industry, in modern pile foundation construction, the requirements for pile frame equipment are becoming increasingly high, the excavation depth is becoming deeper and deeper, the working device is becoming heavier and heavier, and the hole forming accuracy requirements are becoming increasingly high. Therefore, the load borne by the column is also becoming increasingly large. Since the support ability and force-bearing deformation of the column (which exerts a supporting and guiding effect on the working device) in construction have a great impact on the hole forming accuracy and construction safety, it is very important to strengthen the support ability of the column and reduce the force-bearing deformation of the column.

[0005] As shown in Fig. 1, the gooseneck structure and rope winding method of the traditional pile frame column are as follows: the hoisting wire rope 5 is lifted from the rear of the column 6, passes through the rear fixed pulley 4 and the front fixed pulley set 2 of the gooseneck 3 in sequence, and is connected to the movable pulley set of the working device 1 in turn. Finally, a fixed point is directly found with the gooseneck 3, and the end of the wire rope 5 and the gooseneck 3 are relatively fixed. In this structure, mainly the following problems exist, that is, since the connection method of "flange + bolt" is adopted between the column 6 and the gooseneck 3, it is a "dead" hinge point. When the pile frame pulls up the working device 1 or extracts the pile, the column 6 receives a certain bending moment, resulting in a certain deformation. And with the increase of the tensile force, the bending moment becomes larger and the deformation also becomes larger, resulting in a decrease in hole forming accuracy. In addition, the force received by the column 6 is the pressure of a typical thin rod. When receiving a large bending moment, the column 6 is in an eccentric pressing rod state. In this case, the safety factor of the stability of the pressing rod of the column 6 is significantly lower than that of the central pressing rod.

[0006] As shown in Fig. 2, in the prior art, in order to balance the bending received by the column 6, generally, one wire rope is added as a back rope 7 to the rear end of the gooseneck 3, and by applying a force to the back rope 7, a reverse moment is generated on the column 6, so as to offset a part of the bending moment applied to the column 6 itself from the weight of the working device 1 and the received tensile force.

Summary of the Invention

Problems to be Solved by the Invention

[0007] However, the force applied from the back rope 7 to the column 6 is a fixed quantity and has the following defects. When the forward load on the column 6 is small, the column 6 receives the pulling force of the back rope 7 and undergoes deformation backward. When the forward load increases, the column 6 deforms forward. Due to such an unstable state, it is difficult to guarantee hole alignment during the pile frame construction, angle adjustment of the column 6, etc., and the construction quality cannot be guaranteed. If one attempts to adjust the column 6 during construction, first, the force of the back rope 7 must be released, which is cumbersome to operate and poses a safety risk.

[0008] In the prior art, regarding the technical problem that the bending moment received by the column cannot be well balanced, which affects the hole forming accuracy, is cumbersome to operate, affects the working efficiency, and there exists a safety risk, the present invention provides a column bending moment self - adapting balance mechanism that can better balance the bending moment received by the column, guarantee the hole forming accuracy, improve the working efficiency, and reduce the safety risk.

Means for Solving the Problem

[0009] A column bending moment self - adapting balance mechanism, comprising a column, a goose head, a working device, a lever - type balance mechanism, a hoisting wire rope, and a back rope. The goose head includes a goose head bracket attached to the column and a front fixed pulley set attached to the front end of the goose head bracket. The working device is attached to the column and is provided corresponding to the front fixed pulley set. The lever - type balance mechanism is hingedly connected to the goose head bracket. After the hoisting wire rope is inserted into the goose head bracket, it is reciprocally penetrated through the front fixed pulley set and the movable pulley set of the working device, then inserted into one end of the lever - type balance mechanism, and then fixed to the goose head bracket. The back rope is located at the rear end of the goosehead bracket and is connected to the other end of the lever-type balance mechanism.

[0010] Preferably, the lever-type balance mechanism is disposed along the height direction of the goosehead bracket, and is disposed along the hinge connection axis of the goosehead bracket and the width direction of the goosehead bracket.

[0011] Preferably, the lever-type balance mechanism includes a hinged bracket and a connecting device, the hinged bracket is hinged to the goosehead bracket, the connecting device is connected to the ceiling of the hinged bracket, and the back rope is connected to the other end of the hinged bracket; The hoisting wire rope is inserted into the connecting device and then fixed to the goosehead bracket.

[0012] Preferably, the hinged bracket is a right-angled triangle, a hinge point of the hinged bracket is located at a connection point between two right-angled sides, the connection device is connected to a connection point between the hypotenuse of the hinged bracket and one right-angled side, and the back rope is connected to a connection point between the hypotenuse of the hinged bracket and the other right-angled side.

[0013] Preferably, the connection device includes a connection base connected to one end of the hinged bracket, and a balance pulley attached to the connection base; The hoisting wire rope is threaded through the balance pulley and then secured to the goosehead bracket.

[0014] Preferably, said balance pulleys are arranged laterally.

[0015] Preferably, the connection base includes a connection base body and connection support lugs, the balance pulley is attached to the connection base body, the connection support lugs are connected to the connection base body, two connection support lugs are provided, and the two connection support lugs are arranged at intervals, and the connection base body is connected to the hinge connection bracket by the two connection support lugs.

[0016] Preferably, hinge connection support lugs are provided at the rear end of the gooseneck bracket, two hinge connection support lugs are provided, and the two hinge connection support lugs are arranged at intervals. A part of the lever type balance mechanism is inserted between the two hinge connection support lugs and is hinge-connected to the hinge connection support lugs.

[0017] Preferably, the gooseneck further includes a rear fixed pulley attached to the rear end of the gooseneck bracket. The hoisting wire rope passes through the rear fixed pulley and then is inserted into the front fixed pulley set.

[0018] Preferably, the gooseneck is attached to the gooseneck bracket and further includes a transfer fixed pulley located on the rear side of the front fixed pulley set. The hoisting wire rope passes through the transfer fixed pulley after coming out of the front fixed pulley set and the movable pulley set of the working device, and then is inserted into the lever type balance mechanism.

Effects of the Invention

[0019] Compared with the prior art, the column bending moment self - adaptive balance mechanism provided by the present invention includes a column, a goose head, a working device, a lever - type balance mechanism, a hoisting wire rope and a back rope. The goose head includes a goose head bracket attached to the column and a front fixed pulley set attached to the front end of the goose head bracket. The working device is attached to the column. The lever - type balance mechanism is hinged to the goose head bracket. After the hoisting wire rope is inserted into the goose head bracket, it is reciprocally penetrated through the front fixed pulley set and the movable pulley set of the working device, then inserted into one end of the lever - type balance mechanism, and then fixed to the goose head bracket. The back rope is connected to the other end of the lever - type balance mechanism. The column bending moment self - adaptive balance mechanism can self - adaptively reduce the column bending moment, improve the stability of the column, reduce the deformation of the column, and improve the hole - forming quality of the equipment.

Brief Description of the Drawings

[0020] To more clearly explain the embodiments of the present application or the technical solutions of the prior art, the necessary drawings for describing the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. On the premise that those skilled in the art do not perform labor worthy of inventive step, other drawings can be obtained based on these drawings.

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Best Mode for Carrying Out the Invention

[0022] For those skilled in the art to better understand the technical solution of this application, the technical solution of the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are not all embodiments, but only some embodiments of this application. Based on the embodiments of this application, on the premise that those skilled in the art do not perform labor worthy of inventive step, all other obtained embodiments shall fall within the protection scope of this application.

[0023] Here, when an element is expressed as being "fixed to", "attached to" or "provided with" another element, it may be directly or indirectly provided on another element. When an element is expressed as being "connected to" another element, it may be directly or indirectly connected to another element.

[0024] Here, the structures, proportions, sizes, etc. depicted in the drawings of this specification are all used for those skilled in the art to understand and view in accordance with the disclosure content of the specification, and do not limit the possible limiting conditions of the implementation of this application. Therefore, on the premise that they do not have technical substantial meaning and do not affect the possible effects and achievable purposes of this application, any structural modification, change in proportional relationship or adjustment of size should still fall within the scope covered by the technical content disclosed in this application.

[0025] The present invention provides a column bending moment self - adapting balance mechanism, which includes a column, a goose head, a working device, a lever - type balance mechanism, a hoisting wire rope and a back rope. The goose head includes a goose head bracket attached to the column and a front fixed pulley set attached to the front end of the goose head bracket. The working device is attached to the column. The lever - type balance mechanism is hingedly connected to the rear end of the goose head bracket. After the hoisting wire rope is inserted into the goose head bracket, it is reciprocally penetrated through the front fixed pulley set and the movable pulley set of the working device, then inserted into one end of the lever - type balance mechanism and fixed to the goose head bracket. The back rope is connected to the other end of the lever - type balance mechanism. The column bending moment self - adapting balance mechanism can self - adaptively reduce the column bending moment, enhance the stability of the column, reduce the deformation of the column and improve the hole - forming quality of the equipment.

[0026] Refer to the combination of FIGS. 3 and 4. This embodiment provides a column bending moment self - adapting balance mechanism 100. The column bending moment self - adapting balance mechanism 100 can self - adaptively reduce the bending moment received by the column, enhance the stability of the holding bar of the column, reduce the deformation of the column and improve the hole - forming quality of the equipment. The structure of the column bending moment self - adapting balance mechanism 100 is simple, convenient to install, does not need to be controlled individually, and does not affect the adjustment of the perpendicularity of the column.

[0027] The column bending moment self - adapting balance mechanism 100 includes a column 10, a goose head 20, a working device 30, a lever - type balance mechanism 40, a hoisting wire rope 50 and a back rope 60. The goose head 20 includes a goose head bracket 21 attached to the column 10 and a front fixed pulley set 22 attached to the front end of the goose head bracket 21. The working device 30 is attached to the column 10 and is provided corresponding to the front fixed pulley set 22. The lever - type balance mechanism 40 is hingedly connected to the goose head bracket 21.

[0028] After the hoisting wire rope 50 is inserted into the gooseneck bracket 21, it is reciprocally penetrated through the front fixed pulley set 22 and the movable pulley set 31 of the working device 30, then inserted into one end of the lever type balance mechanism 40, and finally fixed to the gooseneck bracket 21. That is, one end of the hoisting wire rope 50 is inserted into the gooseneck bracket 21, the front fixed pulley set 22, the movable pulley set 31, and the lever type balance mechanism 40 in sequence, and then fixed to the gooseneck bracket 21.

[0029] The back rope 60 is located at the rear end of the gooseneck bracket 21 and is connected to the other end of the lever type balance mechanism 40. Here, one end and the other end of the lever type balance mechanism 40 are both ends with respect to the hinge point of the lever type balance mechanism 40. Thus, when the force received by the lever type balance mechanism 40 changes, the lever type balance mechanism 40 swings correspondingly to balance the force. That is, there are respectively tension points at both ends of the lever type balance mechanism 40, and the hoisting wire rope 50 and the back rope 60 are respectively connected to both tension points. Specifically, in this embodiment, the rear tension point of the lever type balance mechanism 40 is connected to the equipment platform or the column through the back rope 60.

[0030] Here, in the prior art, the force applied from the back rope to the column is a fixed quantity. When the front load of the column is small, the column receives the pulling force of the back rope and deforms backward. After the front load of the column increases, the column deforms forward. Due to such an unstable state, it is difficult to guarantee hole alignment, column angle adjustment, etc. during the construction of the pile frame, and the construction quality cannot be well guaranteed. Also, when it is necessary to adjust the column during construction, first, the force of the back rope must be released, the operation is complicated, and at the same time, there is a safety risk.

[0031] In this embodiment, the lever-type balance mechanism 40 is provided, and the hoisting wire rope 50 and the back rope 60 are respectively connected to both ends thereof. Thereby, in different working states, the lever-type balance mechanism 40 swings correspondingly to balance the forces on both sides, and further balance the bending moment received by the column 10. Specifically, according to the difference in the weight of the working device 30 or the pile pulling force, the force transmitted from the hoisting wire rope 50 to the lever-type balance mechanism 40 is also different. When the column 10 tilts forward or backward by a certain angle, the lever-type balance mechanism 40 can be self-adaptively adjusted, and there is no need to limit by programming or adding sensors, and the safety is high. That is, the column bending moment self-adaptive balance mechanism 100 self-adaptively adjusts the bending moment received by the column 10, improves the stability of the column 10, reduces the deformation of the column 10, improves the hole forming quality of the equipment, and does not require complicated operations, effectively improves the working efficiency, and reduces the safety risk.

[0032] Preferably, the lever-type balance mechanism 40 is arranged along the height direction (Z direction in FIG. 3) of the gooseneck bracket 21, and the hinge connection axis of the lever-type balance mechanism 40 and the gooseneck bracket 21 is arranged along the width direction (Y direction in FIG. 1) of the gooseneck bracket 21. Thereby, when the working state is changed, the lever-type balance mechanism 40 can be better self-adaptively adjusted, and the bending moment received by the column 10 can be better adjusted.

[0033] Preferably, the lever-type balancing mechanism 40 includes a hinged bracket 41 hinged to the goosehead bracket 21, and a connecting device 42 connected to the ceiling of the hinged bracket 41. The back rope 60 is connected to the other end of the hinged bracket 41. The hoisting wire rope 50 is inserted into the connecting device 42 and then fixed to the goosehead bracket 21. That is, the hinged bracket 41 balances the force by its own swing, and the hoisting wire rope 50 realizes the connection with the hinged bracket 41 through the connecting device 42, which better ensures the stability of the connection between each component, and the lever-type balancing mechanism 40 can better balance the force.

[0034] Preferably, the hinge bracket 41 is a right triangle, the hinge point is located at the connection point of two right-angled sides, the connection device 42 is connected to the connection point of the hypotenuse of the hinge bracket 41 and one right-angled side, and the back rope 60 is connected to the connection point of the hypotenuse of the hinge bracket 41 and the other right-angled side. Specifically, the hinge bracket 41 includes a first right-angled side 411, a second right-angled side 412, and a hypotenuse 413, the hinge bracket 41 is hinged to the goosehead bracket 21 through the connection point of the first right-angled side 411 and the second right-angled side 412, the connection device 42 is connected to the connection point of the first right-angled side 411 and the hypotenuse 413, and the back rope 60 is connected to the connection point of the second right-angled side 412 and the hypotenuse 413. Thus, the hinge connection bracket 41 can better balance the force and reduce the bending moment received by the column 10 .

[0035] Preferably, the connecting device 42 includes a connecting base 421 connected to one end of the hinge connecting bracket 41, and a balance pulley 422 attached to the connecting base 421. After the hoisting wire rope 50 is inserted into the balance pulley 422, it is fixed to the goose head bracket 21. That is, the hoisting wire rope 50 is inserted into the lever type balance mechanism 40 and penetrates through the balance pulley 422, so as to better change the direction of force, reduce the wear of the hoisting wire rope 50, and better ensure the service life.

[0036] Preferably, the balance pulley 422 is arranged in the lateral direction. That is, the balance pulley 422 is arranged in the horizontal direction, so that the hoisting wire rope 50 penetrates through the balance pulley 422 left and right along the width direction of the goose head bracket 21, and the force received is better balanced.

[0037] Preferably, the connecting base 421 includes a connecting base body 4211 and connecting support lugs 4212. The balance pulley 422 is attached to the connecting base body 4211. The connecting support lugs 4212 are connected to the connecting base body 4211. Two connecting support lugs 4212 are provided, and the two connecting support lugs 4212 are arranged at intervals. The connecting base body 4211 is connected to the hinge connecting bracket 41 by the two connecting support lugs 4212. Thereby, the stability of the connection between the connecting base 421 and the hinge connecting bracket 41, and the self-adaptive balance effect of the lever type balance mechanism 40 are better ensured.

[0038] Preferably, a hinge connection support lug 211 is provided at the rear end of the gooseneck bracket 21. Two hinge connection support lugs 211 are provided, and the two hinge connection support lugs 211 are arranged at intervals. A part of the lever type balance mechanism 40 is inserted between the two hinge connection support lugs 211 and is hinge-connected to the hinge connection support lugs 211. That is, the hinge connection bracket 41 is hinge-connected to the rear end of the gooseneck bracket 21, so as to better balance the bending moment of the column 10. The hinge connection bracket 41 is hinge-connected to the two hinge connection support lugs 211, so as to better ensure the stability of the connection between the lever type balance mechanism 40 and the gooseneck bracket 21.

[0039] Preferably, the gooseneck 20 further includes a rear fixed pulley 23 attached to the rear end of the gooseneck bracket 21. The hoisting wire rope 50 passes through the rear fixed pulley 23 and then is inserted into the front fixed pulley set 22. Thereby, the hoisting wire rope 50 is better supported, the direction of the force is changed, the wear of the hoisting wire rope 50 is better avoided, and the service life is guaranteed.

[0040] Preferably, the gooseneck 20 is attached to the gooseneck bracket 21 and further includes a transfer fixed pulley 24 located on the rear side of the front fixed pulley set 22. The hoisting wire rope 50 passes through the front fixed pulley set 22 and the movable pulley set 31 of the working device 30, then passes through the transfer fixed pulley 24, and is inserted into the lever type balance mechanism 40. Thereby, the hoisting wire rope 50 is further supported, the direction of the force is changed, the wear of the hoisting wire rope 50 is further avoided, and the service life is guaranteed.

[0041] Refer to Figure 5 in combination. Perform a force analysis on the column bending moment self-adaptive balance mechanism 100, and the mechanical calculation is as follows: DE = l1 and GD = l2 are set. Let the magnification of the front fixed pulley set 22 be a, and the magnification of the pulley set of the lever type balance mechanism 40 be b. When there is no lever type balance mechanism 40, list the torque equation for point A:

Equation

Equation

Equation

Equation

Equation

[0042] The column bending moment self - adaptive balance mechanism 100 provided by this embodiment adopts a lever structure that self - adaptively removes the bending moment, and by converting the back - rope force into a dependent variable of the front load of the column, the column receives less bending moment, reduces the deformation of the column, and improves its safety performance and excavation accuracy.

[0043] The above description is only the embodiment of the present invention. Here, for those skilled in the art, improvements may be made on the premise of not departing from the creative concept of the present invention, but all of these belong to the protection scope of the present invention.

Claims

1. A column bending moment self - adapting balance mechanism, including a column, a goose head, a working device, a lever - type balance mechanism, a hoisting wire rope and a back rope, wherein the goose head includes a goose head bracket attached to the column and a front fixed pulley set attached to the front end of the goose head bracket, the working device is attached to the column and is provided corresponding to the front fixed pulley set, the lever - type balance mechanism is hinged to the goose head bracket, after the hoisting wire rope is inserted into the goose head bracket, it is reciprocally penetrated through the front fixed pulley set and the movable pulley set of the working device, then inserted into one end of the lever - type balance mechanism, and then fixed to the goose head bracket, the back rope is located at the rear end of the goose head bracket and is connected to the other end of the lever - type balance mechanism, one end of the lever - type balance mechanism and the other end of the lever - type balance mechanism are both ends with respect to the hinge point between the lever - type balance mechanism and the goose head bracket, and the hinge point is between one end of the lever - type balance mechanism and the other end of the lever - type balance mechanism. A column bending moment self - adapting balance mechanism characterized by this.

2. The lever - type balance mechanism is arranged along the height direction of the goose head bracket, and the hinge connection axis between the lever - type balance mechanism and the goose head bracket is arranged along the width direction of the goose head bracket. The column bending moment self - adapting balance mechanism according to Claim 1, characterized by this.

3. The lever - type balance mechanism includes a hinge connection bracket and a connection device. The hinge connection bracket is hinged to the goose head bracket. The connection device is connected to one end of the hinge connection bracket. The back rope is connected to the other end of the hinge connection bracket, after the hoisting wire rope is inserted into the connection device, it is fixed to the goose head bracket. The column bending moment self - adapting balance mechanism according to Claim 1 or 2, characterized by this.

4. The column bending moment self-adaptive balancing mechanism according to claim 3, characterized in that the hinge connection bracket is a right-angled triangle, the hinge point of the hinge connection bracket is located at the connection point of two right-angled sides, the connection device is connected to the connection point between the hypotenuse of the hinge connection bracket and one right-angled side, and the back rope is connected to the connection point between the hypotenuse of the hinge connection bracket and the other right-angled side.

5. The connection device includes a connection base connected to a ceiling of the hinge connection bracket, and a balance pulley attached to the connection base; The column bending moment self-adaptive balancing mechanism as claimed in claim 3, wherein the hoisting wire rope is inserted into the balancing pulley and then fixed to the goosehead bracket.

6. The column bending moment self-adaptive balancing mechanism according to claim 5, wherein the balance pulley is arranged laterally.

7. The column bending moment self-adaptive balancing mechanism of claim 5, characterized in that the connection base includes a connection base body and a connection support lug, the balance pulley is attached to the connection base body, the connection support lug is connected to the connection base body, there are two connection support lugs, and the two connection support lugs are arranged at a distance from each other, and the connection base body is connected to the hinge connection bracket by both the connection support lugs.

8. A hinge connection support lug is provided at the rear end of the goose head bracket, and two hinge connection support lugs are provided, and the two hinge connection support lugs are arranged at a distance from each other; 2. The column bending moment self-adaptive balancing mechanism according to claim 1, wherein a part of the lever-type balancing mechanism is inserted between both of the hinged support lugs and hingedly connected to the hinged support lugs.

9. The goosehead further includes a rear fixed pulley attached to a rear end of the goosehead bracket; The column bending moment self-adaptive balancing mechanism as claimed in claim 1, wherein the hoisting wire rope passes through the rear fixed pulley and then enters the front fixed pulley set.

10. The goosehead further includes a transition pulley attached to the goosehead bracket and located behind the front pulley set; The hoisting wire rope according to claim 9, wherein after coming out of the front fixed pulley set and the movable pulley set of the working device, it passes through the transfer fixed pulley and then is inserted into the lever type balance mechanism.

Images