Static press device

Abstract

The utility model relates to the technical field of static pressure machines, in particular to a static pressure machine device which comprises a machine base and a static pressure column installed above the machine base in a lifting sliding mode, a pile hole is formed in the top end of the machine base and penetrates through the bottom end, a limiting cylinder is installed at the top end of the machine base, and a limiting cavity opposite to the pile hole in position is formed in the top end of the limiting cylinder and penetrates through the bottom end. The limiting assembly comprises a plurality of mounting bases installed on the inner cavity wall of the limiting cavity in a telescopic sliding mode, rolling balls are embedded into the opposite ends of the mounting bases in a rolling mode, the piles are limited and guided through extrusion and abutting of the rolling balls to the piles on the premise that descending and piling of the piles are not affected, and the characteristic of being convenient to use is preliminarily achieved; the mounting seats are in meshing transmission with the corresponding pinions through the racks, the pinions are in meshing transmission with the double-sided gear ring, the gears are driven by the motor to rotate, the double-sided gear ring is driven to rotate, finally, the mounting seats can be synchronously driven to stretch out and draw back synchronously, the debugging time is shortened, and the device further has the advantage of being convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of static presses, in particular to a static press device. Background Art

[0002] Static pile driving refers to a method of using static pressure (the weight of the pile driver and the counterweight) to drive prefabricated piles into the soil section by section. This method saves steel bars and concrete, reduces the cost of the project, and can reduce the strength grade of the concrete used by 1-2 levels. The reinforcement can save about 40% of steel bars compared to the hammering method. In addition, there is no noise, vibration, or pollution during construction, and the interference to the surrounding environment is small. It is suitable for pile foundation projects in soft soil areas, urban centers or densely built areas, as well as the expansion projects of precision factories.

[0003] Static pile drivers are divided into two categories: mechanical and hydraulic. Hydraulic pile drivers use the force of the pile driving cylinder stroke of the main machine to press the pile into the foundation soil. Static precast piles are mainly used in soft soil and general clay foundations. During the pile pressing process, the weight of the pile driver itself is used as the reaction force to overcome the pile side friction and pile end resistance during the pile pressing process. When the precast pile sinks into the soil under the action of vertical static pressure, the soil around the pile is rapidly and violently squeezed, the pore water pressure in the soil rises sharply, and the shear strength of the soil is greatly reduced, causing the pile body to sink quickly. A limit cylinder is set on the static pile driver, and the pile passes through the limit cylinder. Therefore, the static pile driver uses the limit cylinder to guide the pile driving.

[0004] However, the inner diameter of the limit cylinder used in the static pile driver needs to be consistent with the outer diameter of the pile. This means that when driving piles of different outer diameters, the current limit cylinder needs to be replaced. The replacement process will seriously hinder the progress of the static pile driver. If the limit cylinder is not replaced, the limit cylinder cannot effectively limit the pile, causing the trajectory of the pile to deviate after it enters the soil, making the pile driven into the ground inconvenient for subsequent use. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a static pressure device, which can effectively solve the problem of the inconvenience of using the prior art.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a static pressure machine device, comprising a machine base and a static pressure column which is lifted and slidably installed above the machine base, wherein a pile hole is penetrated through the machine base, a limiting cylinder is installed at the top of the machine base, the top of the limiting cylinder penetrates through the bottom end and a limiting cavity which is opposite to the pile hole is opened, the limiting component comprises a plurality of mounting seats which are telescopically and slidably installed on the inner wall of the limiting cavity, and rolling balls are embedded in the opposite ends of the mounting seats.

[0008] Furthermore, two lifting rings are installed at both ends of the machine base, and two symmetrically distributed bases are installed at the bottom end of the machine base.

[0009] Furthermore, an arc-shaped opening is formed on the outer wall of the limiting cylinder through the limiting cavity, a fixing plate is installed on the outer wall of the limiting cylinder, a motor is installed on the bottom end of the fixing plate, and a large gear connected to the motor output is installed inside.

[0010] Furthermore, a double-sided gear ring meshing with the large gear is rotatably mounted in the limiting cylinder, and a plurality of small gears are meshingly mounted on the inner ring wall of the double-sided gear ring.

[0011] Furthermore, the outer ring wall of the pinion gear is meshed with a rack, and a mounting seat is installed at one end of the rack away from the double-sided gear ring.

[0012] Furthermore, two hydraulic cylinders symmetrically distributed about the limiting cylinder are installed on the top of the machine base, the output ends of the two hydraulic cylinders are connected to lifting rods, the tops of the two lifting rods are jointly installed with a lifting seat, and the bottom end of the lifting seat is installed with a static pressure column.

[0013] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] 1. A limiting cylinder for initial limiting of the pile is installed on the top of the machine base, and a plurality of mounting seats with balls embedded in the ends are installed on the inner wall of the limiting cylinder in a telescopic and sliding manner. Through the squeezing and resistance of the balls on the piles, the piles of different sizes are limited and corrected without affecting the pile descent and piling, effectively ensuring the normal progress of the static pile driver;

[0015] 2. Several mounting seats are meshed with corresponding pinions through racks, and the pinions are meshed with double-sided gear rings. The motor drives the gears to rotate, which drives the double-sided gear rings to rotate, and finally drives several mounting seats to extend and retract synchronously, reducing debugging time and further having the characteristic of easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2This is a schematic diagram of the installation structure of the limit cylinder of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the limit cylinder of the utility model;

[0020] Figure 4 It is a schematic diagram of the installation structure of the double-sided gear ring and the gear of the utility model.

[0021] The numbers in the figure represent: 1. Machine base; 11. Lifting ring; 12. Base; 2. Limiting cylinder; 21. Limiting cavity; 22. Arc opening; 23. Fixing plate; 24. Motor; 25. Large gear; 26. Double-sided gear ring; 27. Small gear; 28. Rack; 29. ​​Mounting seat; 210. Rolling ball; 3. Hydraulic cylinder; 31. Lifting rod; 32. Lifting seat; 33. Static pressure column. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model is further described below in conjunction with embodiments.

[0024] Example 1

[0025] Reference Figure 1-4 , which is the first embodiment of the utility model, discloses a static pressure machine device, including a machine base 1 and a static pressure column 33 installed on the top of the machine base 1 in a lifting and sliding manner. The static pressure column 33 is opposite to the upper cavity opening of the limiting cavity 21 at the top of the limiting cylinder 2 below. A pile hole is penetrated on the machine base 1 to facilitate the bottom of the static pressure column 33 to penetrate the pile hole and insert into the ground below the machine base 1. The limiting cylinder 2 is installed at the top of the machine base 1, and the top of the limiting cylinder 2 penetrates the bottom to open a limiting cavity 21 opposite to the pile hole. The limiting component includes a plurality of mounting seats 29 synchronously telescopically and slidably installed on the inner cavity wall of the limiting cavity 21. The facing ends of the mounting seats 29 are embedded with rolling balls 210. Through the rolling of the plurality of rolling balls 210, the pile is limited and guided without affecting the descent of the pile.

[0026] Example 2

[0027] Reference Figure 1-4, which is the second embodiment of the utility model, which is different from the first embodiment in that: two lifting rings 11 are installed at both ends of the machine base 1, and the entire static press device is connected to the crane through the lifting ring 11. The entire static press is moved and placed on a specific piling point by the crane, and the pile hole is positioned opposite to the piling point. Two symmetrically distributed bases 12 are installed at the bottom end of the machine base 1, and an arc opening 22 is opened on the outer cylinder wall of the limiting cylinder 2 through the limiting cavity 21. The large gear 25 drives the arc opening 22 to mesh with the outer ring wall of the double-sided gear ring 26. A fixing plate 23 is installed on the outer cylinder wall of the limiting cylinder 2, and a motor 24 is installed at the bottom end of the fixing plate 23, and a large gear 25 connected to the output of the motor 24 is installed inside. A double-sided gear ring 2 meshed with the large gear 25 is rotatably installed in the limiting cylinder 2. 6. The outer ring wall and the inner ring wall of the double-sided gear ring 26 are both installed with a plurality of meshing teeth, the inner ring wall of the double-sided gear ring 26 is meshed with a plurality of pinions 27, the outer ring wall of the pinions 27 is meshed with a rack 28, the plurality of pinions 27 are all embedded and rotatably installed between the outer wall of the limiting cylinder 2 and the inner wall of the limiting cavity 21, the rack 28 is installed with a mounting seat 29 at one end away from the double-sided gear ring 26, two hydraulic cylinders 3 symmetrically distributed about the limiting cylinder 2 are installed at the top of the machine base 1, the hydraulic driving force provided by the hydraulic cylinders 3 is used to drive the static pressure column 33 into the limiting cavity 21, and the pile column in the limiting cavity 21 is statically pressed, the output ends of the two hydraulic cylinders 3 are connected with lifting rods 31, the top ends of the two lifting rods 31 are jointly installed with a lifting seat 32, and the bottom end of the lifting seat 32 is installed with a static pressure column 33.

[0028] The remaining structures are the same as those of Example 1.

[0029] First, the two hydraulic cylinders 3 are started synchronously, and the lifting seat 32 and the static pressure column 33 are driven to rise in height through the lifting rod 31, so that the static pressure column 33 is pulled out of the limiting cavity 21 and away from the upper cavity opening of the limiting cavity 21, and then the pile that needs static pressure piling is hoisted and inserted into the limiting cavity 21;

[0030] Secondly, the motor 24 is started, which in turn drives the large gear 25 to rotate, thereby driving the double-sided gear ring 26 to mesh and rotate, and because the inner ring wall of the double-sided gear ring 26 is meshed and installed with a number of small gears 27 to rotate synchronously, the small gears 27 are respectively meshed to drive the corresponding racks 28 to mesh, telescope and slide, and finally the mounting seat 29 drives the rolling ball 210 to synchronously telescope and approach and finally squeeze and contact the outer ring wall of the pile, so as to limit and guide the pile column;

[0031] Finally, the two hydraulic cylinders 3 are started synchronously, and the lifting seat 32 and the static pressure column 33 are driven to descend in height through the lifting rod 31, so that the static pressure column 33 enters the limiting cavity 21 and is pressed against the top of the pile column. With the continued pushing of the hydraulic cylinder 3, the entire static pile driver will eventually be vacated, and its own weight will be transmitted to the pile through the static pressure column 33, thereby realizing static pile pressing of the pile column.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A static pressure machine device, comprising a machine base (1) and a static pressure column (33) which is installed on the machine base (1) in a lifting and sliding manner, wherein a pile hole is formed through the machine base (1), characterized in that: Also includes: A limiting cylinder (2) is installed on the top of the machine base (1), and the top of the limiting cylinder (2) penetrates through the bottom to form a limiting cavity (21) corresponding to the pile hole position; The limiting assembly comprises a plurality of mounting seats (29) which are synchronously telescopically and slidably mounted on the inner wall of the limiting cavity (21), and rolling balls (210) are embedded and rollingly mounted at opposite ends of the mounting seats (29).

2. A static press device according to claim 1, characterized in that: Two lifting rings (11) are installed at both ends of the machine base (1), and two symmetrically distributed bases (12) are installed at the bottom end of the machine base (1).

3. A static press device according to claim 1, characterized in that: The outer wall of the limiting cylinder (2) penetrates the limiting cavity (21) and is provided with an arc-shaped opening (22). The outer wall of the limiting cylinder (2) is provided with a fixing plate (23). A motor (24) is provided at the bottom end of the fixing plate (23), and a large gear (25) connected to the output of the motor (24) is provided inside the fixing plate (23).

4. A static press device according to claim 3, characterized in that: A double-sided gear ring (26) meshing with the large gear (25) is rotatably mounted inside the limiting cylinder (2), and a plurality of small gears (27) are meshingly mounted on the inner ring wall of the double-sided gear ring (26).

5. A static press device according to claim 4, characterized in that: The outer ring wall of the pinion gear (27) is meshed with a rack (28), and one end of the rack (28) away from the double-sided gear ring (26) is installed with a mounting seat (29).

6. A static press device according to claim 1, characterized in that: Two hydraulic cylinders (3) symmetrically distributed about the limiting cylinder (2) are installed at the top of the machine base (1); the output ends of the two hydraulic cylinders (3) are connected to lifting rods (31); a lifting seat (32) is installed at the top of the two lifting rods (31); and a static pressure column (33) is installed at the bottom of the lifting seat (32).

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