WO2012109835A1

WO2012109835A1 - Climbing lifting mechanism and self-climbing method, guide holder and delivery rod thereof

Info

Publication number: WO2012109835A1
Application number: PCT/CN2011/075717
Authority: WO
Inventors: 朱红; 黄勃; 李海军
Original assignee: 湖南三一智能控制设备有限公司; 三一重工股份有限公司
Priority date: 2011-02-17
Filing date: 2011-06-14
Publication date: 2012-08-23
Also published as: CN102134914A; CN102134914B

Abstract

A climbing lifting mechanism includes a guide holder (100) and a delivery rod. In the self-climbing method of applying the climbing lifting mechanism, firstly, when the lower guide holder (100) has the tendency of moving downwards with respect to the guide rail (400), both of them are remained locked. Then the lifting driving member (200) is protracted, which makes the upper guide holder (100) move upwards with respect to the guide rail (400). Later, when the lower guide holder (100) has the tendency of moving upwards with respect to the guide rail (400), both of them are remained locked. At last, the lifting driving member (200) is extracted, which makes the lower guide holder (100) move upwards with respect to the guide rail (400). By multi-circulation of the above steps, the driving part of the climbing lifting mechanism gradually moves upwards with respect to the guide rail (400), which makes the self-climbing of the climbing lifting mechanism achieved.

Description

Construction machinery climbing device and self-climbing method, guiding seat and distribution bar The application is submitted to the Chinese Patent Office on February 17, 2011, the application number is 201110040169.6, and the invention name is "construction machinery climbing device and self-climbing method, guiding The priority of the Chinese Patent Application for the present invention is incorporated herein by reference. Technical field

The present invention relates to a construction machine climbing technique, and more particularly to a self-climbing method of a construction machine climbing device, a guide seat of the climbing device implementing the method, a construction machine climbing device, and a distribution bar including the climbing device.

Background technique

The boom is one of the most widely used construction machines. The boom generally includes a chassis and a lever arm, and the lower end of the lever arm is coupled to the chassis by a suitable swing mechanism. The lever arm sequentially positions the end of the lever arm by a plurality of pitch arms through the transverse shaft to transport the concrete to a predetermined pouring position.

With the development of multi-storey or high-rise building construction technology, climbable booms are widely used in construction projects. On the basis of the ordinary boom, the climbable boom also includes a climbing device and a column having a predetermined length, the chassis of the boom is fixed to the upper end of the column, and the climbing device is mounted on the column. By means of the predetermined floor, the climbing device can move the column and the lever arm upward relative to the building, thereby achieving the climbing of the boom.

Chinese patent document CN10151208A discloses a climbing device for a boom. The climbing device includes a guide rail, an upper guide seat, a lower guide seat, a jacking cylinder, and a support mechanism. The guide rails are provided with corresponding slots and fixed to the posts of the fabric ^ ^. The upper guide seat and the lower guide seat are respectively connected to the upper end and the lower end of the jacking cylinder; the support mechanism is connected to the lower guide seat at the lower end of the jacking cylinder; the upper guide seat, the lower guide seat, the jacking cylinder and the support mechanism form a climbing device Drive part. The upper guide seat and the lower guide seat each have a pawl-type locking member, and the locking member can be caught in the groove of the guide rail; when the upper guide seat or the lower guide seat moves upward, the lock member can guide the corresponding guide member The seat and the rail are locked so that the upper or lower guide seat is relatively fixed to the guide rail; the upper or lower guide seat is opposite When the guide rail moves downward, the locking member can release the locking relationship between the corresponding guide seat and the rail, so that the upper or lower guide seat and the guide rail are kept independent from each other, and the guide seat can move downward relative to the guide rail. When the cloth boom climbs, the lower guide seat is supported on the lower floor of the building by the support mechanism, and the locking member of the upper guide seat snaps into the groove of the guide rail; the jacking cylinder extends to drive the upper guide seat, the guide rail and the column Simultaneously rising; when the jacking cylinder is extended to a predetermined length, the locking member of the lower guiding seat is caught in the groove of the guide rail, so that the column and the rail do not move downward relative to the building; the jacking cylinder is retracted, the upper guide The seat moves downward with the jacking cylinder and moves to a predetermined position, and the locking member of the upper guiding seat snaps into the groove below the rail, and then the jacking cylinder is extended to drive the column to move upward; repeating the above process can The cloth boom climbs up to the predetermined height and reaches the upper floor to carry out concrete construction work on the upper floor. After the boom has been climbed to a certain height, when the driving part of the climbing device needs to be moved to the upper floor, the unlocking handles on the upper and lower guiding seats can be pulled to the unlocked state, so that the upper guiding seat and the lower guiding seat are The locking member cannot be caught in the groove of the guide rail, and the driving portion of the climbing mechanism is lifted to the upper floor by a fixed pulley and a steel chain.

Although the above-mentioned climbing device can achieve the purpose of climbing the cloth boom, the locking member of the guiding seat can only be engaged in the groove of the rail when moving upward, that is, the guiding seat can only be locked with the rail in one direction, and cannot be utilized. The locking member remains locked with the guide rail in the other direction; and further, when the lifting device is required to be lifted and the driving portion of the climbing device is moved upwards to the first floor, the driving portion of the climbing device needs to be operated separately. Since the operating position of the boom is generally high, it is difficult to achieve this by automating large machines when moving up the drive section. This requires the pulley and the steel chain to move up the drive section of the climbing device; The boom lifting device has the cumbersome lifting process and the inconvenience of operation, and has the disadvantages of low lifting efficiency and high labor intensity.

The above technical problems are not only present in the distribution bar, but also in tower cranes or other construction machines having climbing devices. Summary of the invention

In view of the above deficiencies, a first object of the present invention is to provide a self-climbing method for a construction machine climbing device by which a driving portion of a construction machine climbing device can be moved upward with respect to a guide rail by its own power. A second object of the present invention is to provide a guide seat for a climbing device capable of implementing the above method, and at the same time, the construction machine can be used for climbing.

In addition to providing the guide seat of the above-described climbing device, a third object of the present invention is to provide a construction machine climbing device including the above-described guide seat, by which the driving portion of the construction machine climbing device can utilize its own power Move up relative to the rail.

In addition to providing the above climbing device, a fourth object of the present invention is to provide a distribution bar including the climbing device.

In the self-climbing method of the construction machine climbing device provided by the present invention, the climbing device includes a guide rail and a driving portion, and the driving portion includes a jacking driving member and at least two guiding seats, and the upper end and the lower end of the jacking driving member respectively At least one guiding seat is connected, the guiding seat mounted on the upper end of the jacking driving member is an upper guiding seat, and the guiding seat mounted on the lower end of the jacking driving member is a lower guiding seat; the method comprises:

When the lower guide seat has a downward moving tendency with respect to the guide rail, the lower guide seat and the guide rail are kept locked to extend the jacking drive member, and the upper guide seat is driven to move upward relative to the guide rail;

When the upper guide seat has a tendency to move downward relative to the guide rail, the upper guide seat and the guide rail are held locked, the jacking drive member is retracted, and the lower guide seat is driven to move upward relative to the guide rail.

The guiding seat of the climbing device for implementing the above method comprises a guiding seat body, the guiding seat body cooperating with the guiding rail of the climbing device, further comprising a pin shaft, the pin shaft slidingly cooperating with the guiding seat body; When the pin is extended, the outer end of the pin cooperates with the guide rail, so that the guide seat body has a tendency to move in a predetermined direction with respect to the guide rail, so that the guide seat body and the guide rail remain locked, and the pin shaft is retracted. At the same time, the locking between the guide seat and the guide rail is released.

Optionally, the guide seat further includes an elastic member, the pin shaft has a slope intersecting the outer end surface and the circumferential surface, and the inner end of the pin shaft is supported on the elastic member; the pin shaft and the guide seat body The rotation axis is rotatably coupled to form a rotation axis; the sliding direction of the pin shaft relative to the guide body is parallel to the rotation axis.

Optionally, the guide seat further includes a rotation driving member; and the rotation driving member is relatively fixed to the pin shaft in the rotation direction of the pin shaft. Optionally, the rotary driving member is slidably engaged with the pin shaft in a sliding direction of the pin shaft. Optionally, the rotary driving member and the guiding base body are rotatably engaged.

Optionally, the guiding seat further comprises a locking pin, the locking pin is mounted on the guiding seat body; one end of the locking pin cooperates with a locking hole on the rotary driving member.

Optionally, the rotary driving member comprises an annular body and a reversing handle extending radially outward from the annular body, and the locking hole is disposed on the reversing handle.

Optionally, the guiding seat comprises two pin shafts and one linking component; the outer ends of the two pin shafts project in opposite directions; the linking components are respectively connected to the inner ends of the two pin shafts And at least one pin is slidably coupled to the linking member; and the linking member is relatively fixed to the two pins in the direction of rotation of the pin.

Optionally, the elastic member is supported between the inner ends of the two pins.

Optionally, the guide seat further includes a hydraulic cylinder, the hydraulic cylinder is connected to the guide body at one end and the pin shaft at the other end.

Optionally, the guiding base body comprises a guiding cylinder body, a guiding partition plate and an outer positioning cylinder, wherein the guiding partition plate and the outer positioning cylinder are respectively sleeved on an inner wall of the guiding cylinder body, and an end surface of the guiding partition plate Forming a sliding cavity with the inner end surface of the outer positioning cylinder; the pin shaft is slidably engaged with the inner wall surface of the outer positioning cylinder, and the inner end of the pin shaft includes a driving plate extending radially outward; the outer positioning cylinder Forming a retracted hydraulic chamber having an opening at an inner end surface thereof, wherein the retracting hydraulic chamber is provided with a retracting plunger engaged therewith, and an outer end of the retracting plunger is in contact with an outer end surface of the driving plate; An overhanging hydraulic chamber is formed in the plate, and the overhanging hydraulic chamber has an overhanging plunger engaged therewith, and an outer end of the overhanging plunger is in contact with an inner end surface of the pin shaft.

Optionally, the guide seat includes two pin shafts, the guide base body includes two outer positioning cylinders, and the guide partition plate is disposed at an intermediate portion of an inner wall of the guiding cylinder body, the two The outer positioning cylinders are respectively disposed at both end portions of the inner wall of the guiding cylinder; the two end faces of the guiding partition respectively form a sliding cavity with the inner end faces of the two outer positioning cylinders.

Optionally, the guide seat further includes a return spring; a through hole penetrating through the two ends is formed in the middle of the guide baffle; and two ends of the return spring are respectively supported by the through holes of the guide baffle on the two pin shafts On the inner end face.

The construction machine climbing device provided by the invention comprises a guide rail, a jacking drive member, a support mechanism and At least two guiding seats, the upper end and the lower end of the jacking drive member and the at least one guiding seat guiding the guiding seat as any one of the above-mentioned climbing devices; the rail has a plurality of guiding directions along the extending direction of the rail A jacking locking hole, the pin outer end being engageable with the jacking locking hole.

The distribution bar provided by the present invention comprises a chassis, a lever arm, a column and a climbing device, the chassis is mounted at the top end of the column, and the climbing device is the climbing device, and the rail is fixed to the column.

In the self-climbing method of the construction machine climbing device provided by the present invention, first, when the lower guide seat has a downward movement tendency with respect to the guide rail, the lower guide seat and the guide rail are kept locked; Elongating, the lower guide seat and the guide rail are relatively fixed to move the upper guide seat upward relative to the guide rail; then, when the upper guide seat has a downward movement relative to the guide rail, the upper guide seat and the guide rail are maintained Locking; At this time, the jacking drive member is shortened, the upper guide seat and the guide rail are relatively fixed, and the lower guide seat is moved upward relative to the guide rail; and then returning to the previous step. Through the multiple cycles of the above steps, the driving portion of the climbing device can be gradually moved upward relative to the guide rail, and the driving portion of the building machinery climbing device can be self-climbed. This can make the lifting process of the construction machinery climbing device more simple and more convenient to operate; change the current situation of low efficiency and high labor intensity of the existing construction machinery climbing device.

Compared with the prior art, the guide seat of the climbing device for implementing the above method provided by the present invention comprises a guiding seat body and a pin shaft, the guiding seat is matched with the guiding rail of the climbing device, and the pin shaft and the guiding seat body are slidable Cooperating; when the pin shaft is extended, the outer end of the pin shaft cooperates with the guide rail to keep the guide seat and the guide rail locked in a predetermined direction, and when the pin shaft is retracted, the guide seat is released Locking with the guide rail. Thus, the shaft of the drive portion of the construction machine climbing device is required to extend, and the guide seat and the guide rail are locked when the guide seat has a downward movement tendency with respect to the guide rail; the above-mentioned mounting at the lower end of the jacking drive member Resetting the pin of the guide seat to release the lock between the guide seat and the guide rail; at this time, the pin of the guide seat of the lower end of the lift drive member can be extended by elongating the jack drive member, Retaining the guide seat and the guide rail when the guide seat has a downward movement tendency with respect to the guide rail; retracting the pin shaft of the guide seat mounted at the upper end of the jacking drive member, releasing the guide seat and the Locking between the guide rails; The rail moves upward; further, the above process is continuously performed by the guide seat, and the driving portion of the construction machine climbing device can be self-climbed. Also, when the construction machine is required to climb, the guide seat and the guide rail can be locked when the guide seat has a downward movement tendency with respect to the guide rail, and the construction mechanism can be moved upward by the jacking drive member in an existing manner. , to achieve the climb of construction machinery.

In a further technical solution, the guide seat of the climbing device provided by the present invention comprises an elastic member; the pin shaft has a sloped surface intersecting the outer end surface and the circumferential surface, so that a wedge-shaped structure is formed at the outer end of the pin shaft; the inner end of the pin shaft is supported at In addition, the pin and the guide body are not only slidably engaged, but also form a rotatably fit, and the sliding direction of the pin is parallel to the rotational axis formed by the rotatably engaging. When the guide seat is used, when it is required to only allow the guide seat to move upward relative to the guide rail, the pin shaft can be rotated such that the inclined surface of the outer end of the pin shaft faces upward; at this time, when the guide seat moves upward relative to the guide rail, the pin shaft is used The bevel of the end, the guide rail can automatically retract the pin, so that the guide seat can move upward relative to the guide rail; when the guide seat has a downward movement tendency with respect to the guide rail, the outer end of the pin shaft can keep the guide seat and the guide rail locked, The guide seat is prevented from moving downward relative to the guide rail, i.e., in the downward direction, the guide seat and the guide rail remain locked. When it is required to only allow the guide seat to move downward relative to the guide rail, the pin shaft can be rotated such that the inclined surface of the outer end of the pin shaft faces downward; at this time, when the guide seat has a tendency to move upward relative to the guide rail, the outer end of the pin shaft can make The guide seat and the guide rail are locked to prevent the guide seat from moving upward relative to the guide rail; when the guide seat is moved downward relative to the guide rail, the wedge-shaped structure at the outer end of the pin shaft is used, and the guide rail can automatically retract the pin shaft, so that the guide seat can be opposite The guide rail is moved downwards, that is, only in the upward direction, so that the guide seat and the guide rail remain locked. In this way, according to actual needs, by rotating the pin shaft, the guide seat can move relative to the guide rail only in a selected direction, and in the opposite direction, the guide seat and the guide rail remain locked; the guide seat can be in two directions The guide rail is kept locked, and the guide seat can be used to carry out the self-climbing of the driving portion of the construction machine climbing device, and at the same time, the climbing of the construction machine can be realized by the guide seat.

In a further embodiment, the provision of the rotary drive member facilitates the direction of the pin of the guide seat to keep the guide seat and the guide rail locked. In a further technical solution, the guide seat further includes a locking pin, and the rotation driving member can be locked by the locking pin to maintain the guiding seat in a predetermined state, thereby ensuring the reliability and stability of the working performance of the guiding seat.

In a further technical solution, the guide seat comprises a force balance of the two opposing outer ends extending in opposite directions. At the same time, by setting the interlocking parts, the two pins can be rotated synchronously to facilitate the transition of the guide seat state.

In a further technical solution, a guide seat for extending and retracting the pin shaft by a hydraulic cylinder is also provided; by actively controlling the extension and retraction of the pin shaft by the hydraulic cylinder, the pin shaft and the guide can be guided according to actual needs. The seat remains locked or unlocked, and the pin and the guide rail are locked in a predetermined direction according to actual needs; the guide seat can realize the self-climbing of the driving part of the construction machinery climbing device, and can realize the climbing of the construction machine .

In order to reduce the space occupied by the guide seat, in a further technical solution, the guide seat body forms a single-acting hydraulic cylinder that pushes the pin shaft and a single-acting hydraulic cylinder that pushes the pin shaft to retract, and the structure makes full use of the guide seat body. The hydraulic power component is formed, and the occupied space is very small; the solution provides a feasible technical solution for actively controlling the expansion and contraction of the pin shaft, and also improves the reliability of the climbing device.

In the provided construction machine climbing device, since there is any of the above-described guide seats, the guide seat can be moved relative to the guide rail only in a selected direction, and locked in the opposite direction with the guide rail; thus, the drive portion of the climbing device It is possible to selectively move upward or downward relative to the guide rail; thereby, the need to move the drive portion of the climbing device bidirectionally relative to the guide rail to meet the climbing requirements of the construction machine, so that the climbing device can utilize its own power relative to The guide rail moves upwards, making it easier to reach the upper floor, without the need to separately lift the drive section of the climber. This not only adapts to the need to raise the driving portion of the climbing device at a higher position, but also improves the lifting efficiency of the driving portion of the climbing device and reduces the labor intensity. Since the construction machine climbing device has the above technical effects, the distribution bar including the climbing device also has a corresponding technical effect.

DRAWINGS

1 is a schematic perspective structural view of a boom lifting device according to an embodiment of the present invention; 2 is a schematic perspective structural view of a guide seat in a boom lifting device according to a first embodiment of the present invention;

Figure 3 is a half cross-sectional structural view of the guide seat shown in Figure 2;

Figure 4 is an enlarged view of a portion I-I of Figure 1;

5 is a cross-sectional structural view of a guide seat according to Embodiment 2 of the present invention;

6 is a front view showing the structure of a guide seat according to Embodiment 3 of the present invention;

Figure 7 is a cross-sectional view taken along line A-A of Figure 6;

Figure 8 is a cross-sectional view taken along line B-B of Figure 7.

detailed description

The invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is merely exemplary and illustrative, and should not be construed as limiting the scope of the invention. For convenience of description, the technical solution provided by the present invention will be described by taking a cloth boom as an example. It can be understood that the method and product provided by the present invention can also be applied to other construction machines, such as can be applied to a tower crane that can climb.

In the driving part self-climbing method of the boom pole climbing device provided by the present invention, the climbing device comprises a guide rail and a driving portion, the driving portion comprises a jacking driving member and two guiding seats, and the jacking driving member may be a jacking The oil cylinders are the upper guide seat and the lower guide seat, and the upper guide seat and the lower guide seat are respectively connected to the upper end and the lower end of the jacking cylinder. The self-climbing method of the driving portion of the boom pole climbing device includes the following steps:

First step: When the lower guide seat has a tendency to move downward relative to the guide rail, the lower guide seat can be locked with the guide rail to prevent the lower guide seat from moving downward relative to the guide rail. At the same time, the jacking cylinder is extended, the distance between the upper guide seat and the lower guide seat is increased, and the upper guide seat is driven to move upward relative to the guide rail. After the upper guide seat is moved upward by a predetermined distance with respect to the guide rail, the second step is entered.

Second step: When the upper guide seat has a tendency to move downward relative to the guide rail, the upper guide seat can be locked with the guide rail to prevent the upper guide seat from moving downward relative to the guide rail. At this time, the jacking cylinder is retracted, and since the upper guiding seat and the rail are relatively fixed, the lower guiding seat can be moved upward relative to the guide rail, and the lower guiding seat is driven relative to the guide. The rail moves up; then returns to the first step.

The first step and the second step are performed in a loop, and at the beginning, the first step and the second step can be performed according to actual needs. Through the plurality of cycles of the above steps, the driving portion of the climbing device can be gradually moved upward relative to the guide rail, and the driving portion of the boom climbing device can be self-climbed. This can make the lifting process of the cloth boom climbing device more simple and more convenient, and the operation is more convenient; the current lifting rod climbing device has the advantages of low lifting efficiency and high labor intensity.

Further, the present invention provides a guide seat of a boom lifting device capable of implementing the above method, which will be described in detail below. For convenience of description, the guide seat of the boom pole climbing device capable of implementing the above method will be described below while describing the climbing device of the boom, and the guide seat will not be separately described.

Please refer to FIG. 1 , which is a perspective view of a climbing device of a distribution bar according to an embodiment of the present invention. The spreader climbing device provided by the embodiment includes two guide seats 100, a jack cylinder 200, a support mechanism 300, and a guide rail 400 having a predetermined length. For the convenience of the description, the column 500 of the boom is also shown.

The upper end and the lower end of the jacking cylinder 200 are respectively connected to a guide base 100; in this example, the upper end and the lower end of the jacking cylinder 200 are hingedly connected to the guide base 100, respectively. The support mechanism 300 is coupled to the guide seat 100 at the lower end of the jacking cylinder 200. Thus, the two guide seats 100, a jacking cylinder 200 and the support mechanism 300 form the driving portion of the climbing device. The supporting mechanism 300 can be the same as the supporting mechanism in the prior art; the supporting mechanism 300 can be connected to the guiding base 100 located under the lifting cylinder 200 through the hinge shaft; and the corresponding limiting mechanism is disposed on the guiding base 100. To limit the angle of rotation of the support mechanism 300 relative to the guide seat 100 while providing sufficient support force. Alternatively, the support mechanism 300 may be coupled to the jacking cylinder 200 so that the drive portion can be supported on the predetermined floor by the support mechanism to raise the boom to a predetermined height.

The two guide seats 100 cooperate with the guide rails 400, respectively, to be movable upward or downward relative to the guide rails 400 in the direction in which the guide rails 400 extend. The rails 400 are fixed to the column 500; the side plates on both sides of the rail 400 are provided with a plurality of jacking holes 401, and the plurality of jacking holes 401 are arranged one above the other; the spacing between the jacking holes 401 should not be Less than the telescopic stroke of the jacking cylinder 200, to enable the pin 102 described below to be coupled with at least two tops in one telescopic stroke of the jacking cylinder 200 The lift lock holes 401 correspond to each other and cooperate.

Referring to FIG. 2 and FIG. 3, FIG. 2 is a schematic perspective structural view of the guide seat in the climbing device of the distribution bar according to the embodiment of the present invention; FIG. 3 is a half-sectional structural view of the guide seat shown in FIG.

In the embodiment, the guide seat 100 includes a guide body 110 and two pins 120. The guiding base 110 forms two symmetrical cavities for accommodating the pin 120; the circumferential surfaces of the two pins 120 respectively match the inner wall of the cavity, and form a slidable between the pin 120 and the guiding base 110. Rotate the fit. As shown in FIG. 2, the sliding direction of the pin 120 relative to the guiding base 110 is indicated by an arrow; the rotatably engaging between the pin 120 and the guiding base 110 forms an axis of rotation 0-0; the pin 120 is opposite to The sliding direction of the guide body 110 is parallel to the axis of rotation 0-0.

The inner end surface of the pin shaft 120 is supported on the elastic member 130, and has a slope near the outer end portion.

121, the slope 121 intersects the circumferential surface and the outer end surface of the pin shaft 120, and forms a wedge-shaped structure at the outer end. Under the elastic force of the elastic member 130, the pin 120 has a tendency to move outward relative to the guide body 110 in the above sliding direction. Only the inner structure of the left side of the guide seat 100 is shown in FIG. 2, and the inner structure of the right side is symmetrical with the left side; wherein the two ends of the elastic member 130 can be supported on the inner end faces of the two pins 120, respectively. The two pins 120 are respectively kept in a tendency to slide outward. Of course, it is also possible to provide a corresponding elastic member for one of the pins 120; the elastic member 130 is not limited to be supported on the inner end surface of the pin 120, but may be supported at a proper position at the inner end of the pin 120.

Meanwhile, in order to limit the length of the pin shaft 120 extending outward, the guide base body 110 is further provided with a suitable stop ring, and the circumferential surface of the pin shaft 120 is further provided with a stop step corresponding to the stop ring; When the stop ring is in contact with the stop ring, the force applied by the stop ring to the pin shaft 120 is balanced with the force applied by the elastic member 130 to maintain the pin shaft 120 in equilibrium.

Please refer to FIG. 1 and refer to FIG. 4. FIG. 4 is an enlarged view of a portion I-I of FIG. The outer end of the pin 120 can be engaged with the jack-up locking hole 401 of the guide rail 400 and snapped into the jack-up locking hole 401. When the pin 120 is inserted into the jacking hole 401, at least a portion of the slope 121 should be exposed in the side plate of the guide rail 400, so that the edge of the jacking hole 401 can apply a horizontal force to the pin 120 through the inclined surface 121. , the pin 120 is retracted.

The working principle of the above lifting device of the boom is as follows:

When the cloth boom is required to climb upward, the inclined surface 121 of the pin 120 of the two guide seats 100 is made The pin 120 of the two guide seats 100 protrudes outwardly and can be respectively engaged in the different jacking holes 401 of the guide rail 400, that is, only the guide seat 100 is opposite to the guide member 100. When the guide rail 400 has a tendency to move upward, the guide base 100 and the guide rail 400 remain locked.

The steps for the boom to climb up are as follows:

First, the support mechanism 300 is supported on a predetermined floor surface; the jacking cylinder 200 is extended, and since the support mechanism 300 is supported on the predetermined floor surface, the lower guide seat 100 remains stationary, and the upper guide seat 100 is opposed to the lower portion. The guide seat 100 is moved upward; however, since the outer end of the pin shaft 120 of the upper guide seat 100 is inclined downward, the guide base 100 is held relative to the guide rail 400 when the guide base 100 has a tendency to move upward relative to the guide rail 400. The locking, and thus the upper guide seat 100, can drive the guide rail 400 to move in the same direction. When the guide rail 400 moves upward, since the inclined surface of the outer end of the pin shaft 120 of the lower guide seat 100 faces downward, the jack-up locking hole 401 of the guide rail 400 applies a horizontal force to the pin 120 through the inclined surface 121, so that the pin 120 is applied. The elastic force of the elastic member 130 is retracted inwardly, and the guide rail 400 is smoothly moved upward. While the guide rail 400 is moving upward, the upright 500 of the boom is moved upward, thereby causing the chassis and the arm of the boom to move upward with the column 500.

Secondly, when the jacking cylinder 200 is extended to the predetermined position, the elongation is stopped; under the action of the elastic member 130, the pin 120 of the lower guide seat 100 is recombined with the other jacking hole 401 below. And snapped in; at this time, since the inclined surface 121 of the pin shaft 120 of the lower guide seat 100 faces downward, the lower guide seat 100 and the guide rail 400 remain locked, preventing the guide rail 400 from moving downward.

Thirdly, the jacking cylinder 200 is retracted, and the upper guide seat 100 is moved downward relative to the lower guide seat 100; since the inclined surface of the outer end of the pin shaft 120 of the upper guide seat 100 faces downward, the top lift of the guide rail 400 The hole 401 applies a horizontal force to the pin 120 through the inclined surface 121, so that the elastic force of the 120 g of the elastic member 130 is retracted inward, so that the upper guide seat 100 can smoothly move downward relative to the guide rail 400; When the jacking cylinder 200 is retracted to the predetermined position, the pin 120 of the upper guide seat 100 is re-engaged with the lower jacking hole 401 and snapped in.

Then, the jacking cylinder 200 is extended, and the above process is repeated to climb the boom to a certain height. When it is necessary to lift the climbing device to move the driving portion of the climbing device to the upper floor surface, the pin shafts 120 of the respective guiding seats 100 are rotated such that the inclined faces of the pin shafts 120 face upward respectively; under the action of the elastic member 130, the upper portion and the lower portion The pin shafts 120 of the guide seats 100 are respectively snapped into a jacking lock hole 401, that is, the guide seat 100 and the guide rail 400 are kept locked only when the guide seat 100 has a tendency to move downward with respect to the guide rail 400.

The steps of moving the drive section to the upper floor include:

First, the jacking cylinder 200 is extended; at this time, the lower guide seat 100 has a tendency to move downward with respect to the guide rail 400, the guide seat 100 and the guide rail 400 remain locked, and the lower guide seat 100 and the guide rail 400 remain. For the upper guide seat 100, after being subjected to the lifting force of the jacking cylinder 200, since the inclined surface of the outer end of the pin shaft 120 faces upward, the jacking locking hole 401 of the guide rail 400 passes through the inclined surface 121. The pin 120 applies a horizontal force to retract the pin 120 inwardly against the elastic force of the elastic member 130, and the upper guide seat 100 can be moved upward relative to the guide rail 400.

Second, when the jacking cylinder 200 is extended to the predetermined position, the elongation is stopped; the upper guide seat 100 pin 120 re-engages with the other jacking lock hole 401 above and is caught therein.

Third, the jacking cylinder 200 is retracted; at this time, since the inclined surface 121 of the pin shaft 120 of the upper guide seat 100 faces upward, the upper guide seat 100 remains fixed; since the outer end of the pin shaft 120 of the lower guide seat 100 The inclined surface 121 faces upward, and the jacking locking hole 401 of the guide rail 400 retracts the pin 120 inwardly, so that the lower guide seat 100 can smoothly move upward relative to the upper guide seat 100. When the jacking cylinder 200 is retracted to the predetermined position, the pin shaft 120 of the lower guide seat 100 is re-engaged with the upper jacking hole 401 and snapped in.

Then, the jacking cylinder 200 is extended, and the above process is repeated to climb the driving portion of the climbing device to a certain height and reach the upper floor.

When passing through the floor, since the supporting mechanism 300 is hingedly connected with the lower guiding seat 100, the supporting mechanism 300 can be rotated inward under the action of the floor surface to reduce the contour size of the driving portion, and reach the upper through the predetermined through hole on the floor surface. One floor; after reaching the upper floor, the support mechanism 300 is rotated outward and supported on the upper floor to provide a basis for further climbing of the boom.

According to the above description, when the guide base 100 is utilized, the guide base 100 can be moved relative to the guide rail 400 only in a selected direction by rotating the pin 120 according to actual needs. In the opposite direction, the guide seat 100 is kept locked with the guide rail 400; since the guide seat 100 can be locked with the guide rail 400 in both directions, the need for the drive portion of the climbing device to move bidirectionally relative to the guide rail 400 can be satisfied.

The way of rotating the pin 120 can be selected according to actual needs, and the pin can be rotated by electronic control or hydraulic pneumatics. It is also possible to provide corresponding holes, bosses or other specific structures on the outer end faces of the pins 120 and to rotate the pins 120 by other auxiliary tools. In order to reduce the structure and improve the work reliability, the corresponding mechanical mechanism is provided in the embodiment of the invention to achieve the rotation of the rotating pin shaft 120.

Referring to FIG. 2 and FIG. 3 again, in the embodiment, the guiding base 100 is further provided with two rotating driving members 140, and the two rotating driving members 140 respectively correspond to the two pins 120 to respectively make the two pins. 120 rotates relative to the guide body 110 about the axis of rotation 0-0. The two rotary drive members 140 include an annular body 141 and a reversing handle 142, respectively. The annular body 141 surrounds the circumference of the pin 120; at the same time, in the direction of rotation of the pin 120, the annular body 141 is relatively fixed to the pin 120, that is, the outer surface of the pin 120 has a structure of engaging with the inner surface of the annular body 141; This enables the pin shaft 120 to rotate synchronously when the ring body 141 is rotated. In order to smoothly slide the pin 120 relative to the guide seat body 110, a sliding fit may be provided between the ring body 141 and the pin shaft 120 in the sliding direction of the pin shaft 120. In order to ensure the stability of the operation of the annular body 141, in this example, the guide base 110 is provided with a suitable cover plate so that the annular body 141 simultaneously forms a rotatable fit with the guide seat body 110. The inner end of the reversing handle 142 is fixedly coupled to the annular body 141, and the outer end extends radially outwardly to facilitate rotation of the annular body 141 by the reversing handle 142.

In order to improve the working stability of the guide base 100, as shown in FIGS. 2 and 3, the guide base 100 is further provided with four lock pins 150, each of which can slidably mount the guide base 110. Depending on the upper and lower positions, the two lock pins 150 are mounted above the guide body 110, and the two lock pins 150 are mounted below the guide body 110. Corresponding to the lock pin 150, the reversing handle 142 is provided with a locking hole. When the two reversing handles 142 extend upward, one ends of the two locking pins 150 are respectively engaged with the locking holes of the two reversing handles 142, and the locking of the pin 120 is achieved by driving the rotating member 140; When the two reversing handles 142 extend downward, the two locking pins 150 at the lower ends are respectively engaged with the locking holes of the reversing handle 142. By locking the rotary driving member 140 by the locking pin 150, the pin 120 can be held at a predetermined position, avoiding The jacking locking hole 401 acts on the lower pin 120 to rotate, thereby ensuring the operational reliability of the guiding base 100. In order to ensure the reliability of the locking pin 150, it is also possible to provide a suitable spring between the locking pin 150 and the guiding seat 110 so that the spring maintains a force on the locking pin 150 to make the pin stop 150 The end is kept out of the trend, ensuring the engagement of the outer end with the jacking lock hole.

The rotary driving member 140 is not limited to the above structure, and may be other specific structures; for example, the annular body 141 may be disposed as a disk-shaped structure having a larger radius, and the annular body 141 may be disposed on the annular body 141 at the end of the locking pin 150. Fitted locking holes. The rotating driving member 140 and the guiding base 110 and the pin shaft 120 are not limited to the above-mentioned connection relationship; for example, in the case where there is a suitable reserved space between the plates on both sides of the guide rail 400, the annular body 141 and the pin shaft 120 may also be provided. The purpose of rotating the drive pin 120 can also be achieved by fixing and rotating the two synchronously and simultaneously.

When the guide base 100 has two pins 120, in order to rotate the two pins 120 synchronously during the state transition, it is also possible to provide a mechanism for interlocking between the pins 120. Please refer to FIG. 5 , which is a cross-sectional structural view of a guide seat according to Embodiment 2 of the present invention. Compared with the guide seat provided in the first embodiment, the guide base 100 further includes a linkage member 160. The connecting member 160 specifically includes two linkage rods. The inner ends of the pin shaft 120 are respectively provided with a sliding slot 122, and the linkage rods are respectively provided. The ends are slidably coupled to the sliding grooves 122 at the inner ends of the two pin shafts 120, respectively. Thus, the pins 120 can respectively extend or retract relative to the guide body 110; and when one pin 120 rotates relative to the guide body 110, the other pin 120 can be synchronously rotated by the linkage rod; The state transition of the seat 100 is convenient. It can be understood that one end of the linkage rod can be fixedly coupled to one pin 120, and the other end can be slidably coupled to the other pin shaft 120, and the two pin shafts 120 can also be rotated synchronously.

Of course, the interlocking member 160 is not limited to being a linkage rod, and may be a cylindrical shape, a toothed structure or other mechanism having a transmission function, as long as the linkage member 160 is respectively connected to the inner ends of the two pins, and at least one pin The shaft 120 is slidably coupled to the interlocking member 160. In the direction of rotation of the pin shaft 120, the connecting member 160 and the two pin shafts 120 are fixed to each other, so that the two pin shafts 120 can be synchronously rotated. A rotary drive member 140 can be provided on a guide base 100 with the interlocking member 160.

The outer end of the pin 120 is not limited to a wedge-shaped structure, and the pin 120 may be extended at a predetermined timing by a suitable driving mechanism, so that the outer end of the pin 120 cooperates with the guide rail 400, so that the guide body 110 and the guide rail 400 Keep locked, so that the guide seat 100 has a relationship with respect to the guide rail 400 When the predetermined direction moves, the guide base 100 and the guide rail 400 are kept locked; at the other predetermined timing, when the pin 120 is retracted, the lock between the guide base 110 and the guide rail 400 is released. The driving mechanism may be a hydraulic component such as a hydraulic cylinder, and one end of the hydraulic cylinder is connected to the guiding base 110, and the other end is connected to the pin 120. The expansion and contraction of the hydraulic cylinder can control the expansion and contraction of the pin 120.

The provision of the hydraulic component on the guide seat 100 can achieve active control of the state of the pin 120, but the load of the pin 120 reaches several tens of tons in consideration of the guide seat space of the boom climbing device and the pin load when the boom is climbed. Heavy), in practical applications, it is very difficult to set separate hydraulic components. In order to achieve active control of the state of the pin 120, the third embodiment of the present invention also provides a guide seat of another structure.

Referring to FIG. 6, FIG. 7, and FIG. 8, FIG. 6 is a front view of a guide seat according to a third embodiment of the present invention; FIG. 7 is a cross-sectional view taken along line A-A of FIG. The guide seat 100 provided in the third embodiment also includes a guide body 110 and a pin shaft 120. Unlike the structure of the guide base in the above embodiment, in this embodiment, the guide base 110 includes a guide cylinder 111, a guide partition 112, and two outer positioning cylinders 113.

The guide cylinder 111 may have a cylindrical structure. The guide partition 112 is fitted in the middle portion of the inner wall of the guide cylinder 111, and the two outer positioning cylinders 113 are respectively fitted at both end portions of the inner wall of the guide cylinder 111, and at both ends of the guide partition 112 and the outer positioning cylinder 113. A sliding cavity 114 is formed between the end faces, respectively. The outer positioning cylinder 113 is also a cylindrical structure, and the two pin shafts 120 are respectively slidably engaged with the inner wall surfaces of the two outer positioning cylinders 113. The outer end of the pin shaft 120 has a cylindrical structure and protrudes from the guide body 110 to both sides; the inner end of the pin shaft 120 includes a drive plate 123 extending radially outward. At the same time, the inner end surface of the outer positioning cylinder 113 has a retracting hydraulic pressure chamber 1131, that is, a retracting hydraulic pressure chamber 1131 is formed in the outer positioning cylinder 113 with one end opening at the inner end surface thereof, and the retracting hydraulic chamber 1131 is provided with a retracting plunger matched therein. 1132, the outer end surface of the retracting plunger 1132 is in contact with the outer end surface of the driving plate 123. Thus, a single-acting retracting hydraulic cylinder in which the drive pin 120 is retracted is formed in the outer positioning cylinder 113.

At the same time, an outwardly extending hydraulic chamber 1121 having an end opening at an end surface thereof is formed in the guiding partition 112, and an outwardly extending plunger 1122 is fitted in the extended hydraulic chamber 1121. The outer end of the protruding plunger 1122 and the pin 120 are The inner end faces are in contact with each other; thus, a single-acting hydraulic cylinder in which the drive pin 120 extends is formed in the guide partition 112. In this example, the guide partition 112 forms an opening toward the left end and the right. The two outrigger hydraulic chambers of the end (refer to Figures 7 and 8) form a single-acting extension cylinder that can respectively drive the two pins 120 to extend.

In order to ensure the reliability of the single-acting extension hydraulic cylinder and the single-acting retracting hydraulic cylinder, in this example, the first oil port 101 and the second oil respectively communicating with the extended hydraulic pressure chamber 1121 and the retracted hydraulic pressure chamber 1131 are provided. The port 102 is in communication with a hydraulic line of a suitable hydraulic system through a first port 101 and a second port 102. In order to smoothly flow out the hydraulic oil leaking from the single-acting extension hydraulic cylinder and the single-acting retracting hydraulic cylinder, the guide cylinder 111 is further provided with a drain port 103 connecting the sliding cavity 114 to the outside, and oil is disposed at the drain port 103. Take the initiative to release the sliding cavity 114 hydraulic oil at the appropriate time.

With the above-mentioned guide seat, when the guide seat 100 and the guide rail 400 are required to be locked, hydraulic oil can be introduced into the hydraulic chamber 1121 to drive the extension plunger 1122 to move, thereby overcoming the single cylinder by a single-acting hydraulic cylinder. The action retracts the force of the hydraulic cylinder, the drive pin 120 extends, cooperates with the guide rail 400, and the guide seat body 110 and the guide rail 400 remain locked, so that the guide seat 100 has a predetermined movement relative to the guide rail 400. In the trend, the guide seat 100 and the guide rail 400 are kept locked; when the lock between the guide seat 100 and the guide rail 400 needs to be released, the hydraulic oil can be introduced into the retracting hydraulic pressure chamber 1131, and the hydraulic oil can be passed through the single action. The return hydraulic cylinder overcomes the force of the single-acting extension hydraulic cylinder, drives the retracting plunger 1122 to move, and then retracts by the single-acting retracting hydraulic cylinder driving pin 120, releasing the locking between the guide seat 100 and the guide rail 400. Thus, the single-acting extension hydraulic cylinder and the single-acting retracting hydraulic cylinder formed by the guide base 110 fully utilize the space occupied by the guide seat body to form a hydraulic power mechanism for driving the pin shaft to extend and retract; the structure can occupy space In the smaller case, the purpose of driving the pin 120 is achieved.

In this example, in order to reduce the influence of the oil port on the strength of the guiding base 110, the first oil port 101 and the second oil port 102 are both directly above and below the guiding cylinder 111; wherein the second oil port is offset from the guiding body 110 is directed directly above the cylinder 111.

In order to accurately control the extending stroke of the protruding plunger 112, two positioning sleeves 104 are respectively disposed between the two ends of the guiding partition 112 and the outer positioning cylinder 113, and the positioning sleeve 104 can accurately determine the length of the sliding cavity 114, and further The two single-acting extension cylinders are controlled to extend the stroke. In order to ensure that the two pins 120 are simultaneously extended, the distance between the two ends of the two positioning sleeves 104 is equal. In order to facilitate the installation and removal of the positioning sleeve, the wall surface of the positioning sleeve 104 is further provided with a mounting hole for controlling the positioning sleeve 104 through the mounting hole when the installation is removed. In order to ensure the reliability of the working of the guiding base 100, the guiding base 100 provided in this embodiment further includes a return spring 115, and a through hole 1123 penetrating through the two ends is formed in the middle of the guiding partition 112, and the two ends of the return spring 115 pass through the guiding partition 112. The holes 1123 are respectively supported on the inner end faces of the two pin shafts 120; the return spring 115 can not only accelerate the extension of the pin shaft 120, but also enable the pin when the single-acting extension hydraulic cylinder and the single-acting retracting hydraulic cylinder fail. The shaft 120 remains extended to ensure the reliability of the climbing device.

According to the above description, those skilled in the art can understand that, under the premise that the pin 120 and the guide base 110 are slidably engaged, the pin 120 is moved upward when the pin 120 is extended by an appropriate manner, and the guide pin is kept oriented. The locking between the seat 110 and the guide rail 400 prevents the guide base 100 from moving relative to the guide rail 400 in a predetermined direction; when the pin 120 is retracted by a suitable manner, the guide base 110 and the guide rail are released. The lock between the 400 causes the guide base 100 to move relative to the guide rail 400 in a predetermined direction; thus, the state between the guide base 100 and the guide rail 400 can be controlled according to actual needs, and the object of the present invention can be achieved.

In addition to the above-described spreader climbing device, there is also provided a spreader bar comprising a chassis, a lever arm, a column and any of the above-described climbing devices, the guide rails of the climbing device being fixed to the column. Since the boom lifting device has the above technical effects, the boom including the climbing device also has a corresponding technical effect.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make some improvements and refinements without departing from the principles of the present invention, for example: For the reliability of the locking between the guide seat 100 and the guide rail 400, the guide seat 100 may be provided with one pin 120 or more pins 120; the upper and lower ends of the jack drive member may not be limited to one guide seat 100. Connected, it is also possible to connect with more guides 100 respectively. Therefore, the climbing device driving portion is not limited to including two guide seats 100, and may include more guide seats 100, etc., and these improvements and retouchings should also be regarded as The scope of protection of the present invention.

Claims

Rights request

A self-climbing method for a construction machine climbing device, the climbing device comprising a guide rail and a driving portion, the driving portion comprising a jacking driving member and at least two guiding seats, the upper end and the lower end of the jacking driving member respectively and at least A guiding seat is connected, the guiding seat mounted on the upper end of the jacking driving member is an upper guiding seat, and the guiding seat mounted on the lower end of the jacking driving member is a lower guiding seat; wherein the method comprises:

2. A guide seat for a climbing device embodying the method of claim 1 comprising a guide body (110) cooperating with a guide rail (400) of the climbing device, characterized in that The pin shaft (120) includes a sliding fit with the guide seat body (110); when the pin shaft (120) is extended, the outer end of the pin shaft (120) and the guide rail (400) Cooperating, the guiding seat body (110) has a tendency to move in a predetermined direction with respect to the guide rail (400), so that the guiding seat body (110) and the rail (400) remain locked, and the pin shaft (120) is contracted. When returning, the locking between the guide body (110) and the guide rail (400) is released.

The guide seat of the climbing device according to claim 2, further comprising an elastic member (130) having a slope (121) intersecting the outer end surface and the circumferential surface, and the pin The inner end of the shaft (120) is supported on the elastic member (130); the pin shaft (120) is rotatably fitted with the guide seat body (no), and is rotatably fitted to form an axis of rotation (0-0); The sliding direction of the pin shaft (120) with respect to the guide body (110) is parallel to the rotation axis (0-0).

The guide seat of the climbing device according to claim 3, further comprising a rotary driving member (140); in the rotating direction of the pin shaft (120), the rotary driving member (140) The pin shaft (120) is relatively fixed.

5. The guide seat of the climbing device according to claim 4, characterized in that the pin (120) In the sliding direction, the rotary driving member (140) is slidably engaged with the pin (120).

A guide seat for a climbing device according to claim 5, wherein said rotary drive member (140) is rotatably coupled to the guide body (110).

The guide seat of the climbing device according to claim 4, further comprising a lock pin (150), the lock pin (150) being mounted on the guide body (110); One end of the pin (150) cooperates with a locking hole on the rotary drive member (140).

The guide seat of the climbing device according to claim 7, wherein the rotary driving member (140) comprises an annular body (141) and a reversing handle extending radially outward from the annular body (141) ( 142), the locking handle (142) is provided with the locking hole.

9. A guide seat for a climbing device according to any of claims 2-8, comprising two pins (120) and one linkage member (160); two of said pins (120) The outer ends extend in opposite directions; the linking members (160) are respectively connected to the inner ends of the two pins (120), and at least one of the pins (120) is slidably coupled to the linking member (160) The linking member (160) is relatively fixed to the two pins (120) in the direction of rotation of the pin (120).

10. Guide for a climbing device according to claim 9, characterized in that the elastic member (130) is supported between the inner ends of the two pins (120).

A guide for a climbing device according to claim 2, further comprising a hydraulic cylinder connected to the guide body (110) at one end and to the pin (120) at the other end.

12. The guide seat of the climbing device according to claim 2, wherein the guide seat body (110) comprises a guiding cylinder (111), a guiding partition (112) and an outer positioning cylinder (113). The guide partition (112) and the outer positioning cylinder (113) are respectively fitted on the inner wall of the guiding cylinder (111), and at the inner end surface of the guiding partition (112) - the end surface and the outer positioning cylinder (113) Forming a sliding cavity (114); the pin shaft (120) is slidably engaged with an inner wall surface of the outer positioning cylinder (113), and the inner end of the pin shaft (120) includes a driving plate extending radially outward (123) a retracting hydraulic chamber (1131) having an opening at an inner end surface thereof is formed in the outer positioning cylinder (113), and a retracting plunger (1132) is disposed in the retracting hydraulic chamber (1131). Retracting the plunger (114) The outer end of the driving plate (123) is in contact with the outer end surface; the guiding partition (112) forms an outflow hydraulic chamber (1121), and the overhanging hydraulic chamber (1121) has an outwardly extending plunger (1122), an outer end of the overhanging plunger (1122) is in contact with an inner end surface of the pin shaft (120).

A guide seat for a climbing device according to claim 12, comprising two pins (120), said guide body (110) comprising two said outer positioning cylinders (113), The guide partition (112) is disposed at an intermediate portion of the inner wall of the guide cylinder (111), and the two outer positioning cylinders (113) are respectively fitted at both end portions of the inner wall of the guide cylinder (111) A sliding cavity (114) is formed between both end faces of the guiding partition (112) and the inner end faces of the two outer positioning cylinders (113).

The guide seat of the climbing device according to claim 13, further comprising a return spring (115); the guide partition (112) forms a through hole (1123) penetrating through the two ends; the return spring (115) The through holes (1123) passing through the guide partitions (112) at both ends are respectively supported on the inner end faces of the two pins (120).

15. A construction machine climbing device comprising a guide rail (400), a jacking drive member (200), a support mechanism (300) and at least two guide seats, the upper end and the lower end of the jack drive member (200) respectively At least one of the guide seats is connected, and the support mechanism (300) is connected to the jacking drive member (200) or the guide seat of the lower end of the jacking drive member (200), wherein the guide seat is according to claim 2. The guide seat (100) of the climbing device according to any one of the preceding claims, wherein the guide rail (400) has a plurality of jacking locking holes (401) arranged along a direction in which the rails (400) extend, the pin ( 120) The outer end is engageable with the jacking locking hole (401).

16. A boom comprising a chassis, a lever arm, a post (500) and a climbing device, the chassis being mounted on a top end of the post (500), wherein the climbing device is the climb of claim 15. The device, the guide rail (400) is fixed to the column (500).