阅读说明：本技术 一种液压打桩机复合门架机构 (Composite portal mechanism of hydraulic pile driver ) 是由 何志佩 高大伟 姚为之 于 2020-12-11 设计创作，主要内容包括：一种液压打桩机复合门架机构,包括外部导轨旋转架、导轨滑动架、升降导轨、导轨滑动架油缸、导轨提升油缸和随动架；外部导轨旋转架和导轨滑动架套设在一起并在外部通过导轨滑动架油缸连接,导轨滑动架的上下两端部均位于外部导轨旋转架的外部；升降导轨与导轨滑动架相对滑动安装,导轨提升油缸的两端部分别与导轨滑动架、升降导轨连接；随动架固定连接在链条上,链条包括辅链条和主链条,升降导轨的两端分别设有辅链条链轮和主链条链轮,上主链条一端固定连接在导轨滑动架上,另一端绕过上主链条链轮固定于随动架上。本发明具有两级调高功能,且高度调节动作与打桩运动相关联,可简化结构,提高打桩的效率和优化性能,降低成本。(A composite portal mechanism of a hydraulic pile driver comprises an external guide rail rotating frame, a guide rail sliding frame, a lifting guide rail, a guide rail sliding frame oil cylinder, a guide rail lifting oil cylinder and a follow-up frame; the external guide rail rotating frame and the guide rail sliding frame are sleeved together and are connected outside through a guide rail sliding frame oil cylinder, and the upper end part and the lower end part of the guide rail sliding frame are positioned outside the external guide rail rotating frame; the lifting guide rail and the guide rail sliding frame are installed in a relatively sliding mode, and two end portions of the guide rail lifting oil cylinder are connected with the guide rail sliding frame and the lifting guide rail respectively; the follow-up frame is fixedly connected to the chain, the chain comprises an auxiliary chain and a main chain, an auxiliary chain sprocket and a main chain sprocket are respectively arranged at two ends of the lifting guide rail, one end of the upper main chain is fixedly connected to the guide rail sliding frame, and the other end of the upper main chain is fixed to the follow-up frame by bypassing the upper main chain sprocket. The invention has two-stage height adjustment function, and the height adjustment action is associated with the piling movement, thereby simplifying the structure, improving the piling efficiency and optimizing the performance and reducing the cost.)

1. The utility model provides a compound portal mechanism of hydraulic pile driver, characterized by: comprises an external guide rail rotating frame (1), a guide rail sliding frame (2), a lifting guide rail (4), a guide rail sliding frame oil cylinder (3), a guide rail lifting oil cylinder (6) and a follow-up frame (5); the external guide rail rotating frame (1) and the guide rail sliding frame (2) are sleeved together and are connected outside through a guide rail sliding frame oil cylinder (3), and two end parts of the guide rail sliding frame (2) are located outside the external guide rail rotating frame (1); the lifting guide rail (4) and the guide rail sliding frame (2) are installed in a relatively sliding mode, and two end portions of the guide rail lifting oil cylinder (6) are connected with the guide rail sliding frame (2) and the lifting guide rail (4) respectively; the follow-up frame (5) is fixedly connected to a chain, and the chain comprises a main chain; one end of the lifting guide rail (4) is provided with a main chain sprocket (42), one end of the main chain is fixedly connected to the guide rail sliding frame (2), and the other end of the main chain bypasses the main chain sprocket (42) and is fixed to the follow-up frame (5).

2. The composite mast mechanism of hydraulic pile driver as claimed in claim 1, wherein: the chain still includes the assistance chain, and the other end of lift guide (4) still is equipped with assistance chain sprocket (41), assists chain one end fixed connection on guide rail carriage (2), and the other end is fixed in on follow-up frame (5) around assisting chain sprocket (41).

3. A composite mast mechanism for a hydraulic pile driver according to claim 1 or 2, wherein: the fixed end of the guide rail lifting oil cylinder (6) is hinged to the lower end of the guide rail sliding frame (2), and the movable end of the guide rail lifting oil cylinder (6) is hinged to the top end of the lifting guide rail (4).

4. A composite mast mechanism for a hydraulic pile driver as claimed in claim 3, wherein: the number of the guide rail lifting oil cylinders is two, and the guide rail lifting oil cylinders are symmetrically arranged on two sides of the external guide rail rotating frame (1).

5. The composite mast mechanism of hydraulic pile driver as set forth in claim 4, wherein: the external guide rail rotating frame (1) is also fixedly provided with a plurality of fixed connecting plates (11) for the guide rail lifting oil cylinder (6) to pass through.

6. The composite mast mechanism of hydraulic pile driver as claimed in claim 5, wherein: the fixed end of the guide rail sliding frame oil cylinder (3) is hinged at the lower end of the external guide rail rotating frame (1), and the movable end of the guide rail sliding frame oil cylinder is hinged at the upper end of the guide rail sliding frame (2).

7. The composite mast mechanism of hydraulic pile driver as claimed in claim 2, wherein: the auxiliary chain follow-up frame connecting lug and the main chain follow-up frame connecting lug are arranged on the follow-up frame (5) respectively, the auxiliary chain follow-up frame connecting lug and the main chain follow-up frame connecting lug are aligned with the main chain guide rail connecting lug and the auxiliary chain guide rail connecting lug from top to bottom respectively, and the auxiliary chain and the main chain are fixedly connected to the follow-up frame (5) through the auxiliary chain follow-up frame connecting lug and the main chain follow-up frame connecting lug respectively.

8. The composite mast mechanism of hydraulic pile driver as claimed in claim 7, wherein: guide rail carriage (2) on be equipped with main chain guide rail engaging lug (21), stagger in the vertical direction with auxiliary chain sprocket (41) and arrange, main chain passes through main chain guide rail engaging lug (21) and guide rail carriage (2) fixed connection.

9. The composite mast mechanism of hydraulic pile driver as claimed in claim 8, wherein: guide rail carriage (2) on be equipped with and assist chain guide rail engaging lug (22), be located main chain guide rail engaging lug (21) top, adjust well in the vertical direction with assisting chain sprocket (41), assist the chain through assisting chain guide rail engaging lug (22) and guide rail carriage (2) fixed connection.

10. The composite mast mechanism of hydraulic pile driver as claimed in claim 9, wherein: the auxiliary chain sprocket (41), the auxiliary chain guide rail connecting lug (22) and the auxiliary chain follow-up frame connecting lug are two in number and are symmetrically arranged on two sides of the main chain sprocket (42), the main chain guide rail connecting lug (21) and the main chain follow-up frame connecting lug.

Technical Field

The invention relates to a hydraulic pile driver, in particular to a composite portal frame mechanism of the hydraulic pile driver.

Background

It is known that the mast mechanism is an important component of a hydraulic pile driver and is used for guiding the up and down movement of the pile hammer of the pile driver. At present, the structure adopts a single-portal structure, and the piling height is greatly limited.

In order to meet the requirement of high-pile construction, the existing pile drivers adopt a method of directly increasing the length of a portal frame, the total length of the portal frame is fixed, the height can not be adjusted according to the use requirement, the flexibility is lacked, and the transportation is not facilitated in size.

Subsequently, the mast of the pile driver is designed into a two-stage telescopic structure, the first-stage height adjustment is realized through a similar fixed frame and a movable frame, the whole adjusting range cannot meet the requirement of a wider application range, and the telescopic motion of the mast and an executing mechanism of the pile driving action are independent, so that the structure of the whole pile driver is complex, the coordination is relatively mechanical, the executing effect is not good, and the manufacturing cost and the maintenance cost are certainly increased.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the composite portal frame mechanism of the hydraulic pile driver, which has a two-stage height adjusting function, and the height adjusting action is associated with the pile driving motion, so that the structure can be simplified, the pile driving efficiency and the optimization performance can be improved, and the cost can be reduced.

The technical scheme adopted by the invention for solving the technical problems is as follows: the device comprises an external guide rail rotating frame, a guide rail sliding frame, a lifting guide rail, a guide rail sliding frame oil cylinder, a guide rail lifting oil cylinder and a follow-up frame; the external guide rail rotating frame and the guide rail sliding frame are sleeved together and are connected outside through a guide rail sliding frame oil cylinder, and the upper end part and the lower end part of the guide rail sliding frame are positioned outside the external guide rail rotating frame; the lifting guide rail and the guide rail sliding frame are coaxially sleeved, the lower end of the lifting guide rail is positioned inside the guide rail sliding frame, the upper end of the lifting guide rail is arranged outside the guide rail sliding frame, and two end parts of the guide rail lifting oil cylinder are respectively connected with the guide rail sliding frame and the lifting guide rail; the follow-up frame is fixedly connected to a chain, and the chain comprises an auxiliary chain and a main chain; two ends of the lifting guide rail are respectively provided with an auxiliary chain sprocket and a main chain sprocket, one end of the auxiliary chain is fixedly connected to the guide rail sliding frame, the other end of the auxiliary chain bypasses the auxiliary chain sprocket and is fixed to the follow-up frame, one end of the main chain is fixedly connected to the guide rail sliding frame, and the other end of the main chain bypasses the main chain sprocket and is fixed to the follow-up frame.

Compared with the prior art, on one hand, the composite portal frame mechanism of the hydraulic pile driver has three-stage structures of an external guide rail rotating frame, a guide rail sliding frame and a lifting guide rail in height, and is linked by a guide rail sliding frame oil cylinder and a guide rail lifting oil cylinder respectively to realize two-stage telescopic motion, namely the combined height of the external guide rail rotating frame and the guide rail sliding frame is adjustable, the combined height of the guide rail sliding frame and the lifting guide rail is adjustable, and the telescopic amount of the guide rail sliding frame oil cylinder and the guide rail lifting oil cylinder can be respectively adjusted under different use working conditions according to different height requirements, so that different combined heights are achieved; particularly, the lifting guide rail and the guide rail sliding frame are coaxially sleeved, the lower end of the lifting guide rail is positioned inside the guide rail sliding frame, the upper end of the lifting guide rail is arranged outside the guide rail sliding frame, the external guide rail rotating frame and the guide rail sliding frame are sleeved together and are connected outside through the guide rail sliding frame oil cylinder, and the upper end and the lower end of the guide rail sliding frame are both positioned outside the external guide rail rotating frame; the composite portal frame mechanism can be folded to a limited size, and the size requirement of transportation is guaranteed.

On the other hand, the follow-up frame is fixed on the chain, the chain is fixedly connected with the guide rail sliding frame, therefore, the chain can be dragged by changing the telescopic length of the guide rail lifting oil cylinder, the follow-up frame slides on the lifting guide rail to play a role in the up-and-down action of the pile hammer, and the pile driving operation of the equipment is completed.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of a composite portal mechanism in a retracted state in accordance with one embodiment of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a left side view of fig. 1.

Fig. 5 is a right side view of fig. 1.

FIG. 6 is a schematic diagram of the construction of an outer rail swivel mount in one embodiment of the present invention.

Fig. 7 is a schematic view of the construction of a guide rail carriage in one embodiment of the present invention.

Figure 8 is a schematic view of the construction of a lifting rail in one embodiment of the invention.

In the figure, 1, an external guide rail rotating frame, 11, a fixed connecting plate, 2, a guide rail sliding frame, 21, a main chain guide rail connecting lug, 22, an auxiliary chain guide rail connecting lug, 3, a guide rail sliding frame oil cylinder, 4, a lifting guide rail, 41, an auxiliary chain sprocket, 42, a main chain sprocket, 5, a follow-up frame, 6 and a guide rail lifting oil cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.

The first preferred embodiment:

as shown in fig. 1-8, the composite mast mechanism of the hydraulic pile driver provided by the embodiment includes an outer guide rail rotating frame 1, a guide rail sliding frame 2, a lifting guide rail 4, a guide rail sliding frame oil cylinder 3, a guide rail lifting oil cylinder 6 and a following frame 5; the external guide rail rotating frame 1 and the guide rail sliding frame 2 are sleeved together and are connected outside through a guide rail sliding frame oil cylinder 3, and the upper end part and the lower end part of the guide rail sliding frame 2 are both positioned outside the external guide rail rotating frame 1; the lifting guide rail 4 and the guide rail sliding frame 2 are coaxially sleeved, the lower end of the lifting guide rail 4 is positioned inside the guide rail sliding frame 2, the upper end of the lifting guide rail 4 is arranged outside the guide rail sliding frame 2, and two end parts of the guide rail lifting oil cylinder 6 are respectively connected with the guide rail sliding frame 2 and the lifting guide rail 4; the follow-up frame 5 is fixedly connected to a chain, and the chain comprises an auxiliary chain and a main chain; two ends of the lifting guide rail 4 are respectively provided with an auxiliary chain sprocket 41 and a main chain sprocket 42, one end of the auxiliary chain is fixedly connected to the guide rail sliding frame 2, the other end of the auxiliary chain bypasses the auxiliary chain sprocket 41 and is fixed to the follow-up frame 5, one end of the main chain is fixedly connected to the guide rail sliding frame 2, and the other end of the main chain bypasses the main chain sprocket 42 and is fixed to the follow-up frame 5.

According to the embodiment of the invention, the length of the oil cylinder 3 of the guide rail sliding frame is adjusted, the extending length of the guide rail sliding frame 2 is adjusted, and two auxiliary chains are correspondingly pulled; the length of the guide rail lifting oil cylinder 6 is adjusted, the extending length of the lifting guide rail 4 is adjusted, and a main chain is correspondingly pulled. The relative distance between the follow-up frame 5 and the lifting guide rail 4 is adjusted by adjusting the length of the guide rail lifting oil cylinder 6, and the height of the follow-up frame 5 is adjusted.

The second preferred embodiment:

as shown in fig. 1 to 5, in the present embodiment, in the composite mast mechanism of the hydraulic pile driver, the fixed end of the rail lifting cylinder 6 is hinged at the lower end of the rail sliding frame 2, and the movable end of the rail lifting cylinder 6 is hinged at the top end of the lifting rail 4. At this time, the range of the stroke of the guide rail lifting oil cylinder 6 is maximally overlapped with the guide rail sliding frame 2 and the lifting guide rail 4, so that the stability of the two relative movements is optimal.

In this embodiment, the number of the rail-lifting cylinders is preferably two, and the two rail-lifting cylinders are symmetrically arranged on two sides of the outer rail rotating frame 1, so that the telescopic performance and the structural stability of the structure are matched best, but not limited to.

The third preferred embodiment:

as shown in fig. 1 to 6, in the composite mast mechanism of the hydraulic pile driver provided in this embodiment, a plurality of fixed connection plates 11 are further fixedly arranged on the external guide rail rotating frame 1, through which the guide rail lifting cylinder 6 passes, the fixed connection plates 11 not only help the guide rail lifting cylinder 6 to maintain the stability of operation, but also play a role of fixing the fixed connection plates, the number of the fixed connection plates 11 is specifically selected according to the use requirement, for example, four fixed connection plates are shown in the drawings, and two fixed connection plates are arranged in a group and are symmetrical to the main structure of the mast mechanism and fixed at the outer side of the mast mechanism.

The preferred embodiment four:

as shown in fig. 1 to 5, in the composite portal frame mechanism of the hydraulic pile driver provided in this embodiment, the fixed end of the rail carriage cylinder 3 is hinged to the lower end of the outer rail rotating frame 1, and the movable end thereof is hinged to the upper end of the rail carriage 2.

Preferred embodiment five:

as shown in fig. 5, in the composite mast mechanism of the hydraulic pile driver according to the embodiment, in the embodiment, the follower frame 5 is provided with an auxiliary chain follower frame engaging lug and a main chain follower frame engaging lug, the auxiliary chain follower frame engaging lug and the main chain follower frame engaging lug are respectively aligned with the main chain guide rail engaging lug 21 and the auxiliary chain guide rail engaging lug 22, and the auxiliary chain and the main chain are respectively fixedly connected to the follower frame 5 through the auxiliary chain follower frame engaging lug and the main chain follower frame engaging lug.

Preferred embodiment six:

as shown in fig. 1 to 5 and fig. 7, in the composite mast mechanism of the hydraulic pile driver according to the present embodiment, the guide rail sliding frame 2 is provided with the main chain guide rail engaging lug 21, which is vertically staggered from the auxiliary chain sprocket 41, and the main chain is fixedly connected to the guide rail sliding frame 2 through the main chain guide rail engaging lug 21.

The preferred embodiment is seven:

as shown in fig. 5, in the composite mast mechanism of the hydraulic pile driver according to the embodiment, in the embodiment, the guide rail sliding frame 2 is provided with the auxiliary chain guide rail engaging lug 22, which is located above the main chain guide rail engaging lug 21 and aligned with the auxiliary chain sprocket 41 in the vertical direction, and the auxiliary chain is fixedly connected to the guide rail sliding frame 2 through the auxiliary chain guide rail engaging lug 22.

Preferred embodiment eight:

as shown in fig. 5 and 8, in the composite mast mechanism of the hydraulic pile driver according to the present embodiment, the number of the auxiliary chain sprocket 41, the auxiliary chain guide engaging lug 22 and the auxiliary chain follower engaging lug is preferably two, and the two auxiliary chain sprockets, the auxiliary chain guide engaging lug 22 and the auxiliary chain follower engaging lug are symmetrically arranged on two sides of the main chain sprocket 42, the main chain guide engaging lug 21 and the main chain follower engaging lug, so as to achieve the best use effect.

The working process of the invention is as follows: when the guide rail sliding frame oil cylinder 3 extends, the guide rail sliding frame 2 extends upwards; when the guide rail lifting oil cylinder 6 extends, the lifting guide rail 4 extends upwards to extend the gantry mechanism, so that the requirement of the follow-up frame 5 for lifting height is met. Meanwhile, when the guide rail lifting oil cylinder 6 extends, the length of the right half side chain of the auxiliary chain is increased, the length of the left half side chain of the auxiliary chain is reduced, and the auxiliary chain lifts the follow-up frame 5 upwards; when the guide rail lifting oil cylinder 6 is shortened, the length of the right half side chain of the main chain is increased, the length of the left half side chain of the main chain is reduced, the main chain slides the follow-up frame 5 downwards, and the follow-up frame 5 meets the working action requirement when piling of the equipment is completed.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiment according to the technical spirit of the present invention are included in the protection scope of the present invention.