Hydraulic pile head breaking device

Abstract

The utility model provides a hydraulic pile head breaking device which comprises a supporting frame of an annular structure, supporting seats are arranged on the supporting frame in a circumferential array mode, hydraulic breaking mechanisms are arranged in the supporting seats in the radial direction of the supporting frame, and centering guide mechanisms are arranged at the bottoms of the supporting seats. The centering guide mechanism is provided with a supporting arm hinged to the bottom of the supporting base, a swing hydraulic cylinder is hinged to the side, away from the circle center of the supporting frame, of the supporting arm, and the end, away from the supporting arm, of the swing hydraulic cylinder is hinged to the bottom of the supporting base. According to the hydraulic pile head breaking device, in the process of sleeving the pile head with the hydraulic pile head breaking device, the supporting arm swings inwards to abut against the outer side of the pile head, the supporting frame can correspond to the top end of the pile head, and therefore the supporting frame can be rapidly arranged on the outer side of the pile head in a sleeving mode conveniently, personnel assistance is not needed, construction efficiency is improved, and labor expenditure is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of cast-in-place pile construction technology, and particularly relates to a hydraulic pile head breaking device. BACKGROUND

[0002] When pile foundation is constructed, the pile head is generally higher than the pile top elevation to ensure the quality of the pile head, and the 0.5m-1m or so above the pile top is the over-poured part. After the concrete solidifies, the over-poured part is chiseled off, the pile head is broken, and then the main reinforcement above the pile top elevation is exposed; then the reinforcement of the pile foundation is inserted into the pile cap.

[0003] In the prior art, the Chinese utility model patent document with the authorization announcement number CN222008905U discloses a pile head hydraulic breaking device, which can replace manual operation to quickly break the pile head, improve construction efficiency, and reduce labor costs; since the diameter of the virtual circle formed by the breaking head end is slightly larger than the pile head, in the process of sleeving the breaking device outside the pile head by the excavator, a lot of time is usually consumed to align and sleeve the breaking device with the pile head to perform pile head breaking construction, or a construction personnel needs to be specially arranged to assist in aligning and sleeving the breaking device with the pile head, which increases additional labor costs and has safety hazards.

[0004] Therefore, it is necessary to design a hydraulic pile head breaking device which can be quickly sleeved outside the pile head to perform pile breaking construction, improve construction efficiency, and reduce labor costs to solve the technical problems existing at present. SUMMARY

[0005] In view of the deficiencies in the prior art, the utility model provides a hydraulic pile head breaking device which can be quickly sleeved outside the pile head to perform pile breaking construction, improve construction efficiency, and reduce labor costs.

[0006] The technical scheme of the utility model is as follows: a hydraulic pile head breaking device, comprising a support frame in an annular structure, a support seat is arranged in a circumferential array on the support frame, a hydraulic breaking mechanism is arranged inside the support seat in the radial direction of the support frame, and a centering guide mechanism is arranged at the bottom of the support seat; the centering guide mechanism has a support arm hinged to the bottom of the support seat, a swing hydraulic cylinder is hinged to one side of the support arm away from the center of the support frame, and one end of the swing hydraulic cylinder away from the support arm is hinged to the bottom of the support seat.

[0007] The bottom end of the support arm is provided with an axle seat, and a pulley is rotatably arranged inside the axle seat.

[0008] The shaft seat is fixedly provided with a connecting handle near one end of the support arm, the end of the support arm is provided with a connecting cavity matched with the connecting handle, the connecting handle is inserted into the connecting cavity, and the connecting handle is detachably fixedly connected with the support arm through a bolt and nut mechanism.

[0009] The bottom of the support seat is fixedly provided with a support arm hinge seat and a hydraulic cylinder hinge seat, one end of the support arm is hingedly connected with the support arm hinge seat, one end of the swing hydraulic cylinder is hingedly connected with the hydraulic cylinder hinge seat, and one side of the support arm is fixedly provided with a side hinge seat.

[0010] The hydraulic breaking mechanism has a pile breaking hydraulic cylinder fixedly arranged on the support seat, and a pile breaking cone head is arranged at the piston rod end of the pile breaking hydraulic cylinder.

[0011] One side of the support seat near the center of the support frame is fixedly provided with a limiting sleeve concentric with the pile breaking cone head, and the pile breaking cone head is slidably arranged in the limiting sleeve.

[0012] The support frame is circumferentially arranged with at least four support seats.

[0013] The support frame is circumferentially arranged with eight support seats.

[0014] The hydraulic pile head breaking device in the utility model can be quickly sleeved on the outside of the pile head without the assistance of personnel, construction efficiency is improved, and labor cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the hydraulic pile head breaking device.

[0016] Figure 2 It is a structural schematic view of the hydraulic pile head breaking device.

[0017] Figure 3 It is a structural schematic view of the centering guide mechanism in an unfolded state.

[0018] Figure 4 It is a structural schematic view of the centering guide mechanism in an unfolded state.

[0019] Figure 5 It is a structural schematic view of the centering guide mechanism in a folded state. DETAILED DESCRIPTION

[0020] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. The application can be implemented in numerous ways, including not only as embodiments described herein but also as carriers, structures, and other ways not expressly disclosed but with modifications that are within the scope of the inventive concept. Such embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the application to those skilled in the art. It should be noted that relative arrangements of components and steps, compositions of materials, numerical expressions, and values set forth in these embodiments are to be interpreted as merely illustrative, and not as a limitation unless otherwise specifically stated.

[0021] The terms "first", "second", and similar terms used in the present application do not denote any order, number, or importance, but are only used to distinguish different parts. The terms "comprise", "include", and similar terms mean that the elements before the term encompass the elements listed after the term, and do not exclude the possibility of also encompassing other elements. The terms "up", "down", "left", "right", and the like are only used to indicate relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] As shown in Figures 1 to 5 The hydraulic pile head breaking device comprises a support frame 1 of an annular structure, support seats 2 are arranged in a circumferential array on the support frame 1, a hydraulic breaking mechanism 3 is arranged inside the support seat 2 along the radial direction of the support frame, and a centering guide mechanism 4 is arranged at the bottom of the support seat 2. The centering guide mechanism 4 has a support arm 41 hinged to the bottom of the support seat 2, a swing hydraulic cylinder 44 is hinged to one side of the support arm 41 away from the center of the support frame 1, and the end of the swing hydraulic cylinder 44 away from the support arm 41 is hinged to the bottom of the support seat 2. In this embodiment, the swing hydraulic cylinder 44 is pumped with hydraulic oil through the hydraulic circuit of the excavator to control its extension and retraction. Before the excavator hoists the device above the pile head, the support arm 41 is in a folded state. After the device is hoisted above the pile head, the swing hydraulic cylinder 44 drives the support arm 41 to swing towards the center of the support frame 1 until the bottoms of the support arms 41 around the support frame 1 are in contact with the outside of the pile head. At this time, the center of the support frame 1 basically corresponds to the center of the pile head. The device below the excavator can be fitted on the outside of the pile head, and the pile head breaking construction can be performed by further adjusting the device to the corresponding height. That is, in this embodiment, the hydraulic pile head breaking device is fitted on the pile head by swinging the support arm 41 inward to abut against the outside of the pile head, so as to correspond to the support frame 1 and the top end of the pile head, thereby facilitating the quick fitting of the support frame 1 on the outside of the pile head without the assistance of personnel, improving the construction efficiency, and reducing the labor cost. In addition, after the support frame 1 is fitted on the top end of the pile head, the swing hydraulic cylinder 44 drives the support arm 41 to fold and reset, so as to avoid interference between the support frame 1 and the ground during the lowering process.

[0023] In some embodiments, after the correspondence between the device and the pile head is completed, the device needs to be lowered; the bottom end of the support arm 41 is provided with a shaft seat 43, the inside of the shaft seat 43 is rotatably provided with a pulley 42, after the correspondence between the device and the pile head is completed, the pulley 42 abuts against the outside of the pile head, the sliding friction between the support arm 41 and the outside of the pile head is converted into the rolling friction between the pulley 42 and the outside of the pile head, so that the purpose of reducing the friction is achieved, so as to facilitate the lowering of the device.

[0024] In some embodiments, as shown in Figure 4 The end of the support arm 41 is provided with a connecting handle 431, the end of the support arm 41 is provided with a connecting cavity 411 matched with the connecting handle 431, the connecting handle 431 is inserted into the connecting cavity 411, and the connecting handle 431 is detachably connected with the support arm 41 through a bolt and nut mechanism 432; the pulley 42 is easy to wear and damage during use, and in order to facilitate the replacement, the shaft seat 43 is detachably connected with the support arm 41 through the connecting handle 431.

[0025] In some embodiments, the bottom of the support seat 2 is fixedly provided with a support arm hinge seat 46 and a hydraulic cylinder hinge seat 45, one end of the support arm 41 is hingedly connected with the support arm hinge seat 46, and one end of the swing hydraulic cylinder 44 is hingedly connected with the hydraulic cylinder hinge seat 45; one side of the support arm 41 is fixedly provided with a side hinge seat 47, and the end of the swing hydraulic cylinder 44 away from the hydraulic cylinder hinge seat 45 is hingedly connected with the side hinge seat 47.

[0026] In some embodiments, the hydraulic breaking mechanism 3 has a pile breaking hydraulic cylinder 31 fixedly arranged on the support seat 2, and the piston rod end of the pile breaking hydraulic cylinder 31 is provided with a pile breaking cone head 33; specifically, the end of the pile breaking hydraulic cylinder 31 is fixedly arranged on one side of the support seat 2 through a flange.

[0027] In some embodiments, a limiting sleeve 32 is concentrically arranged on one side of the support seat 2 close to the center of the support frame 1 and is concentric with the pile breaking cone head 33, the pile breaking cone head 33 is slidably arranged in the inside of the limiting sleeve 32, the limiting sleeve 32 provides sliding guide for the pile breaking cone head 33, and the stability of the pile breaking cone head 33 is guaranteed; the end of the limiting sleeve 32 is fixedly arranged on one side of the support seat 2 through a flange.

[0028] In some embodiments, there are at least four support seats 2 arranged in a circumferential array on the support frame 1; preferably, as shown in Figure 1 There are eight support seats 2 arranged in a circumferential array on the support frame 1.

[0029] So far, the embodiments of the utility model have been described in detail. In order to avoid obscuring the concept of the utility model, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0030] The above-described embodiments only express some implementation manners of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the scope of the present application. It should be pointed out that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A hydraulic pile head breaking apparatus, characterized by: The support frame comprises a ring structure, and support bases are arranged in a circumferential array on the support frame; a hydraulic breaking mechanism is arranged inside the support base along a radial direction of the support frame; and a centering guide mechanism is arranged at the bottom of the support base; The centering guide mechanism comprises a support arm hinged to the bottom of the support base, and a swing hydraulic cylinder is hinged to one side of the support arm away from the center of the support frame; and one end of the swing hydraulic cylinder away from the support arm is hinged to the bottom of the support base.

2. Hydraulic pile head breaking apparatus according to claim 1, characterized in that: The bottom end of the support arm is provided with a shaft seat, and a pulley is rotatably arranged inside the shaft seat.

3. Hydraulic pile head breaking apparatus according to claim 2, characterised in that: A connecting handle is fixedly arranged on one end of the shaft seat close to the support arm; an end of the support arm is provided with a connecting cavity matched with the connecting handle; the connecting handle is inserted into the connecting cavity; and the connecting handle is detachably connected to the support arm through a bolt and nut mechanism.

4. The hydraulic pile head breaking apparatus according to claim 1, characterized in that: The bottom of the support base is fixedly provided with a support arm hinge seat and a hydraulic cylinder hinge seat; one end of the support arm is hinged to the support arm hinge seat; one end of the swing hydraulic cylinder is hinged to the hydraulic cylinder hinge seat; and one side of the support arm is fixedly provided with a side hinge seat, and one end of the swing hydraulic cylinder away from the hydraulic cylinder hinge seat is hinged to the side hinge seat.

5. The hydraulic pile head breaking apparatus according to claim 1, characterized in that: The hydraulic breaking mechanism comprises a pile breaking hydraulic cylinder fixedly arranged on the support base, and a pile breaking cone head is arranged at the end of the piston rod of the pile breaking hydraulic cylinder.

6. The hydraulic pile head breaking apparatus according to claim 5, characterized in that: One side of the support base close to the center of the support frame is provided with a limiting sleeve concentric with the pile breaking cone head, and the pile breaking cone head is slidably arranged inside the limiting sleeve.

7. The hydraulic pile tip breaking apparatus according to claim 1, characterized in that: There are at least four support bases arranged in a circumferential array on the support frame.

8. The hydraulic pile head breaking apparatus according to claim 7, characterized in that: There are eight support bases arranged in a circumferential array on the support frame.

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