Safety protection device of diesel pile driver

Abstract

The utility model relates to the field of pile foundation construction, and provides a diesel pile driver safety protection device which comprises an automatic detacher. The automatic unhooking device comprises a guide rod, a winch, a hook tray, an automatic unhooking structure and an unhooking hook; the bottom end of the guide rod is installed on a pile of the diesel pile driver, and the top end of the guide rod is installed on a machine frame of the diesel pile driver. The hook tray is sleeved on the guide rod; the top of the winch is installed on a rack of the diesel pile driver, and the bottom is connected with the top of the hook tray. The automatic unhooking structure is mounted on the hook tray; the unhooking device is connected with the automatic unhooking structure; by arranging the automatic unhooking device and the unhooking device, automatic unhooking can be achieved under the combined action of the guide rod, the winch, the hook tray and the automatic unhooking structure, hammer hanging and unhooking are very smooth, labor force is effectively saved, the quality and efficiency of the hook and the unhooking are improved, meanwhile, manual hammer hanging and manual hammer unhooking are not needed, and operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of pile foundation construction, in particular to a safety protection device for a diesel pile driver. Background Art

[0002] With the acceleration of urban development and the updating of technology, the requirements for construction speed have increased, especially in the foundation construction stage. Due to the influence of concrete strength, prefabricated pile foundations have been widely used in Qingdao's urban construction in foundation construction projects.

[0003] The factory currently uses a guide rod diesel pile driver, whose working principle is: hanging piles - feeding piles - hooking and hammering - unhooking and dropping hammers - diesel explosive hammering - continuous explosive hammering and dropping hammers - stopping hammering after the penetration meets the requirements, among which the hooking and hammering are operated manually;

[0004] Manual operation of the hook hammer is unstable, and the hook may not be in place. The hook not being in place not only seriously affects work efficiency, but also causes safety hazards;

[0005] At the same time, in recent years, the amount of engineering construction in coastal areas has gradually increased. The area is dominated by marine alluvial landforms, with thicker dredged fill and silty soft soil on the upper part, and the geological environment is poor. Through construction, it was found that pile drivers are less efficient and more costly when constructing in coastal areas than in other areas. Utility Model Content

[0006] The utility model proposes a safety protection device for a diesel pile driver. By arranging an automatic unhooking device, unhooking can be achieved automatically under the joint action of a guide rod, a winch, a hook tray and an automatic unhooking structure. Both hooking and unhooking are very smooth, which effectively saves labor and improves the quality and efficiency of hooking and unhooking. At the same time, there is no need for manual hooking and unhooking, which improves the safety of the operation.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A diesel pile driver safety protection device comprises: an automatic unhooking device;

[0009] The automatic unhooking device comprises a guide rod, a winch, a hook tray, an automatic unhooking structure and an unhooking device;

[0010] The guide rod is a guide rod of a diesel pile driver, and the guide rod is installed on a frame of the diesel pile driver;

[0011] The hook tray is sleeved on the guide rod;

[0012] The winch is connected to the top of the hook tray;

[0013] The top of the winch is installed on the frame of the diesel pile driver, and the bottom is connected to the top of the hook tray;

[0014] The automatic unhooking structure is installed on the hook tray;

[0015] The unhooking is connected to the automatic unhooking structure.

[0016] Furthermore, the automatic unhooking structure includes a hydraulic oil top, a tension spring, a shift fork and an oil outlet / return hose;

[0017] The hydraulic oil top is installed on the hook tray;

[0018] The oil outlet / return hose is in communication with the hydraulic oil top;

[0019] One end of the shift fork is connected to the end of the piston rod of the hydraulic oil top;

[0020] The other end of the shift fork is mounted on the hook tray via a rotating shaft;

[0021] A limiting groove is provided at the bottom of the hook tray, and the rotating shaft passes through the limiting groove;

[0022] The unhooking top end is mounted on the portion of the rotating shaft located in the limiting groove;

[0023] One end of the tension spring is installed on the hook tray, and the other end is installed on the shift fork.

[0024] Furthermore, two shift forks are provided, and the two shift forks are respectively installed at two ends of the rotating shaft;

[0025] The distance between the two forks of the decoupling is equal;

[0026] Correspondingly, two hydraulic oil tops are provided, and two tension springs are provided.

[0027] Furthermore, two guide rods are provided, and the hook tray is simultaneously mounted on the two guide rods.

[0028] Furthermore, the hoisting device includes a hoisting motor, a fixed pulley, a steel wire rope and a movable pulley;

[0029] The hoisting motor is installed on the frame of the diesel pile driver;

[0030] The fixed pulley is rotatably mounted on the frame of the diesel pile driver;

[0031] The fixed pulley is connected to the output shaft of the hoisting motor;

[0032] The top of the hook tray is symmetrically provided with lifting ears, and the movable pulley is rotatably mounted on the lifting ears;

[0033] One end of the steel wire rope is installed on the frame of the diesel pile driver, the middle of the steel wire rope is passed around the movable pulley, and the other end is installed on the fixed pulley.

[0034] The utility model provides an automatic unhooking device, so that unhooking can be achieved automatically under the joint action of the guide rod, winch, hook tray and automatic unhooking structure. Hooking and unhooking are very smooth, which effectively saves labor and improves the quality and efficiency of hooking and unhooking. At the same time, there is no need for manual hooking and unhooking, which improves the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] 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 description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0036] Figure 1 It is a schematic diagram of the overall structure of a diesel pile driver safety protection device in a specific embodiment of the utility model;

[0037] Figure 2 for Figure 1 A structural schematic diagram of an automatic unhooking device of a diesel pile driver safety protection device is shown;

[0038] Figure 3 for Figure 2 The structural schematic diagram of the automatic unhooking structure of the automatic unhooking device shown;

[0039] Explanation of reference numerals: automatic unhooking device 1; guide rod 11; winch 12; winch motor 121; fixed pulley 122; wire rope 123; movable pulley 124; hook tray 13; limiting groove 131; unhooking 14; hydraulic oil top 15; tension spring 16; shift fork 17; rotating shaft 171; oil outlet / return hose 18; 3 piling. DETAILED DESCRIPTION

[0040] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments 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.

[0041] In the specific embodiment of the present invention, see Figure 1-Figure 3 , a diesel pile driver safety protection device, comprising: an automatic unhooking device 1;

[0042] The automatic unhooking device 1 comprises a guide rod 11, a winch 12, a hook tray 13, an automatic unhooking structure and an unhooking 14;

[0043] The guide rod 11 is a guide rod of a diesel pile driver, and the guide rod 11 is installed on a frame 2 of the diesel pile driver;

[0044] The hook tray 13 is provided with a sleeve hole, and the hook tray 13 is sleeved on the guide rod 11 through the sleeve hole, and the hook tray 13 provides support for the automatic unhooking structure and the unhooking 14;

[0045] The hoist 12 is a pulley block structure, connected to the top of the hook tray 13, driving the hook head plate 13 to move up and down, thereby combining with the automatic unhooking structure to achieve the hanging and unhooking of the unhooking 14;

[0046] The top of the winch 12 is installed on the frame 2 of the diesel pile driver, and the bottom is connected to the top of the hook tray 13;

[0047] The automatic unhooking structure is installed on the hook tray 13;

[0048] The unhooking 14 is connected to the automatic unhooking structure.

[0049] In the specific embodiment of the present invention, see Figure 1-Figure 3 The automatic unhooking structure includes a hydraulic oil top 15, a tension spring 16, a shift fork 17 and an oil outlet / return hose 18. The automatic unhooking structure is used to control the hanging hammer and unhooking hammer of the unhooking 14;

[0050] The hydraulic oil top 15 is firmly fixed on the hook tray 13;

[0051] The oil outlet / return hose 18 is in communication with the hydraulic oil top 15;

[0052] One end of the shift fork 17 is rotatably connected to the end of the piston rod of the hydraulic oil top 15. When the piston rod of the hydraulic oil top 15 is extended or retracted, the shift fork 17 is driven to swing up and down.

[0053] The other end of the shift fork 17 is mounted on the hook tray 13 via a rotating shaft 171. The position of the rotating shaft 171 remains unchanged. When the shift fork 17 rotates, the rotating shaft 171 is driven to rotate.

[0054] The bottom of the hook tray 13 is provided with a limiting groove 131, the rotating shaft 171 passes through the limiting groove 131 and is rotatably mounted on two side walls of the limiting groove 131, and the limiting groove 131 provides a containing space for the rotating shaft 171 and the unhooking 14;

[0055] The top end of the unhooking hook 14 is mounted on the portion of the rotating shaft 171 located at the limiting groove 131. The unhooking hook 14 and the rotating shaft 171 are fixedly connected via a key and a key groove. When the rotating shaft 171 rotates, the unhooking hook 14 is driven to rotate, thereby realizing the hanging and unhooking of the unhooking hook 14.

[0056] One end of the tension spring 16 is mounted on the hook tray 13, and the other end is mounted on the fork 17. The tension spring 16 provides a pulling force to the fork 17 to ensure that the fork 17 swings more smoothly without causing the hook tray 13 to be damaged.

[0057] The hydraulic oil top 15 is a bidirectional piston type hydraulic oil top with a maximum working pressure of not less than 20MPa, high feasibility and good oil pollution resistance;

[0058] The tension spring 16 is a high-strength spring;

[0059] Each hammer-unhooking operation can be completed within 25 seconds, and the fastest can reach 16 seconds, which greatly improves the hammer-unhooking efficiency.

[0060] At the same time, compared with the previous manual pulling of the hanging hammer to unhook, workers do not need to stand at the bottom of the hanging hammer, which is safer.

[0061] In the specific embodiment of the present invention, see Figure 1-Figure 3 , the shift fork 17 is provided with two, and the two shift forks 17 are respectively installed at both ends of the rotating shaft 171;

[0062] The distance between the decoupling hook 14 and the two shift forks 17 is equal;

[0063] Accordingly, two hydraulic oil tops 15 are provided, and two tension springs 16 are provided;

[0064] The two hydraulic oil tops 15 act simultaneously to ensure the stability of the unhooking movement.

[0065] In the specific embodiment of the present invention, see Figure 1-Figure 3 The guide rods 11 are provided with two, and the hook tray 13 is simultaneously mounted on the two guide rods 11.

[0066] In the specific embodiment of the present invention, see Figure 1-Figure 3 The hoist 12 includes a hoist motor 121, a fixed pulley 122, a wire rope 123 and a movable pulley 124;

[0067] The hoisting motor 121 is installed on the frame 2 of the diesel pile driver;

[0068] The fixed pulley 122 is rotatably mounted on the frame 2 of the diesel pile driver;

[0069] The fixed pulley 122 is connected to the output shaft of the hoisting motor 121;

[0070] The top of the hook tray 13 is symmetrically provided with a lifting ear 131, and the movable pulley 124 is rotatably mounted on the lifting ear 131;

[0071] One end of the steel wire rope 123 is mounted on the frame 2 of the diesel pile driver, the middle of the steel wire rope 123 passes around the movable pulley 124 , and the other end of the steel wire rope 123 is mounted on the fixed pulley 122 .

[0072] Economic benefits of automatic unhooking device:

[0073] 1. Cost of mechanical equipment investment: Taking the "One Institute and One Park" project of China Iron and Steel Research Institute as an example, the total completed engineering volume of the project is 48,350 meters. According to the working efficiency of each equipment before the transformation of 392.5 meters / shift, the construction period is 30 days, and at least 4 equipment are required, that is, 4x392.5=1570 meters, 48350 / 1570≈30 days; if the working efficiency after the transformation is 509 meters / shift per equipment, only 3 equipment are needed to complete the 30-day construction period, calculated as: 48350 / 509 / 30≈3 units; because the work efficiency is improved and the investment in equipment is reduced, compared with the previous transformation under the same construction period requirements, one less equipment is invested, so at least 60,000.00 yuan of equipment entry and exit fees increased due to the rush to meet the construction period are saved;

[0074] 2. After the use of the guide rod diesel hammer hydraulic control unhooking device, the labor cost of construction workers was reduced, the working efficiency of the pile driver was greatly improved, and the heavy hammer top-falling caused by improper coordination or invalid hammer drop caused by too short drop distance was avoided. Due to the improved work efficiency, the project was completed ahead of schedule, ensuring the smooth development of the subsequent work of the project. It was unanimously recognized by the owner, the customer satisfaction was improved, and the company's strength was demonstrated. The technology of this project has been fully applied by the company;

[0075] 3. It solves the problem of "no hammer" during the construction of prefabricated piles in soft soil areas, and manual repeated hooking, which reduces work efficiency due to improper coordination, and also avoids the situation of heavy hammer falling out due to improper coordination or invalid hammer drop due to too short drop distance;

[0076] 4. No manual operation is required, and workers do not need to stand under the equipment, which greatly improves the safety of the operation.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A diesel pile driver safety protection device, comprising: Automatic unhooking device; The feature is that the automatic unhooking device comprises a guide rod, a winch, a hook tray, an automatic unhooking structure and an unhooking device; The guide rod is a guide rod of a diesel pile driver, and the guide rod is installed on a frame of the diesel pile driver; The hook tray is sleeved on the guide rod; The top of the winch is installed on the frame of the diesel pile driver, and the bottom is connected to the top of the hook tray; The automatic unhooking structure is installed on the hook tray; The unhooking is connected to the automatic unhooking structure.

2. A diesel pile driver safety protection device as claimed in claim 1, characterized in that: The automatic unhooking structure includes a hydraulic oil top, a tension spring, a shift fork and an oil outlet / return hose; The hydraulic oil top is installed on the hook tray; The oil outlet / return hose is in communication with the hydraulic oil top; One end of the shift fork is connected to the end of the piston rod of the hydraulic oil top; The other end of the shift fork is mounted on the hook tray via a rotating shaft; A limiting groove is provided at the bottom of the hook tray, and the rotating shaft passes through the limiting groove; The unhooking top end is mounted on the portion of the rotating shaft located in the limiting groove; One end of the tension spring is installed on the hook tray, and the other end is installed on the shift fork.

3. A diesel pile driver safety protection device as claimed in claim 2, characterized in that: There are two shift forks, which are respectively mounted at two ends of the rotating shaft; The distance between the two forks of the decoupling is equal; Correspondingly, two hydraulic oil tops are provided, and two tension springs are provided.

4. A diesel pile driver safety protection device as claimed in claim 1, characterized in that: Two guide rods are provided, and the hook tray is simultaneously sleeved on the two guide rods.

5. A diesel pile driver safety protection device as claimed in claim 1, characterized in that: The hoist comprises a hoisting motor, a fixed pulley, a steel wire rope and a movable pulley; The hoisting motor is installed on the frame of the diesel pile driver; The fixed pulley is rotatably mounted on the frame of the diesel pile driver; The fixed pulley is connected to the output shaft of the hoisting motor; The top of the hook tray is symmetrically provided with lifting ears, and the movable pulley is rotatably mounted on the lifting ears; One end of the steel wire rope is installed on the frame of the diesel pile driver, the middle of the steel wire rope is passed around the movable pulley, and the other end is installed on the fixed pulley.

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