Movable diesel pile driver convenient for construction

Abstract

The utility model relates to the technical field of diesel pile drivers, in particular to a movable diesel pile driver convenient for construction, which comprises a base, the top of the base is fixedly connected with a pole, the top of the pole is fixedly connected with a top block, the pole is slidably connected with a lower piston, and the top of the lower piston is provided with an oil nozzle. A guide rod is fixedly connected to the pole, an air cylinder is slidably connected to the guide rod, and the air cylinder is matched with the lower piston. The upper pressing plate and the lower pressing plate get close to each other and extrude the air bag, the air bag conveys internal lubricating oil to the oil injection nozzle, the lubricating oil is evenly sprayed to the surface of the guide rod through the oil injection nozzle, then the air cylinder moves up and down in a reciprocating mode, the lubricating oil can be evenly smeared to the movement track of the air cylinder on the guide rod, and therefore the lubricating step of the guide rod is achieved. The problem that the friction coefficient between the guide rod and the air cylinder is increased and the lower piston is difficult to move due to aging and rusting of the guide rod is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel pile drivers, in particular to a mobile diesel pile driver for convenient construction. Background Art

[0002] Pile drivers are divided into drop hammer pile drivers, steam hammer pile drivers, screw pile drivers, hydraulic hammer pile drivers and diesel hammer pile drivers. Diesel hammer pile drivers are widely used because of their simple structure and large pile driving capacity.

[0003] After searching for a diesel pile driver for hammer pile construction based on soft soil, the Chinese patent publication number CN213476875U, the patent disclosed documents are as follows: including a mounting frame, the bottom of the mounting frame is horizontally fixed with a guide seat, a guide assembly is installed on the guide seat, a top plate is horizontally fixed at the top of the mounting frame, an impact hammer is vertically installed at the center of the lower surface of the top plate, and a plurality of buffer mechanisms are installed on the outer circumference of the bottom of the guide seat, and a mounting base plate is installed at the bottom of each buffer mechanism. The utility model reduces the tilting of the pile body during the use of the diesel pile driver by providing a guide seat with a guide assembly, avoids the assistance of construction personnel, and thus prevents unnecessary safety accidents caused by accidental injuries to construction personnel during the assistance process. By providing a limit baffle that is easy to lift, piling operations of different depths are realized. By providing a mounting base plate with a buffer mechanism at the bottom of the guide seat, damage to the guide seat caused by the impact of the hammer head is reduced, and it is convenient to use.

[0004] Although the existing technology reduces the tilting of the pile body during the use of the diesel pile driver, the guide rod is prone to aging and rusting over time, which will increase the friction coefficient between the guide rod and the cylinder, causing the piston to move difficultly and make loud noises. In view of this, we propose a mobile diesel pile driver that is convenient for construction. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a mobile diesel pile driver for convenient construction, which solves the problem that the friction coefficient between the guide rod and the cylinder increases due to aging and rusting of the guide rod, causing difficulty in the movement of the lower piston. To achieve the above objectives, the utility model is implemented through the following technical solutions: a mobile diesel pile driver for convenient construction, comprising a base, a lever fixedly connected to the top of the base, a top block fixedly connected to the top of the lever, a lower piston slidably connected to the lever, a fuel injector is arranged on the top of the lower piston, a guide rod fixedly connected to the lever, a cylinder slidably connected to the guide rod, the cylinder and the lower piston are arranged in cooperation with each other, a lubrication structure is arranged above the lever, the lubrication structure comprises an extension plate, the extension plate is fixedly connected to the outer side of the top block, a rotating rod is rotatably connected to the inner side of the extension plate through a bearing, a gear is fixedly sleeved on the surface of the rotating rod, a bar tooth A and a bar tooth B are respectively arranged on the inner side of the extension plate, the gears are respectively meshed with the bar teeth A and the bar teeth B, an upper pressure plate is fixedly connected to the bottom of the bar teeth A, and a lower pressure plate is fixedly connected to the top of the bar teeth B.

[0006] Preferably, an airbag is fixedly connected to the top of the upper pressure plate, an oil filling pipe is connected to the outside of the airbag, an oil filling nozzle is connected to the other end of the oil filling pipe, and the oil filling nozzle is arranged on the guide rod.

[0007] Preferably, a counterweight structure is provided at the top of the cylinder, and the counterweight structure includes a counterweight block. The counterweight block is arranged at the top of the cylinder, and a limiting groove is provided at the bottom of the counterweight block. The counterweight block is slidably connected to the slider at the top of the piston through the limiting groove.

[0008] Preferably, two sliding grooves are provided on the inner side of the extension plate, and one side of the bar tooth A and the bar tooth B are respectively fixedly connected with a limiting block, the limiting block is in contact with the groove wall of the sliding groove and is slidably connected, and a spring is fixedly connected to the inner wall of the sliding groove, and the other end of the spring is fixedly connected to the limiting block. By sliding the setting limiting block in the sliding groove, the bar tooth A and the bar tooth B can play a limiting role.

[0009] Preferably, a protrusion is fixedly connected to the outer wall of the cylinder, a valve stem is provided on the outer wall of the lower piston, the protrusion is cooperated with the valve stem, the valve stem is connected to the fuel injector, the diesel injection process is generated by the oil pump, the pressure power generated by the oil pump comes from the valve stem, when the valve stem is pressed down, the diesel is sprayed from the fuel injector, and this pressure is achieved by the protrusion squeezing the valve stem, and no manual operation is required.

[0010] Preferably, there are two guide rods, and the other end of the oil filling pipe is connected to two oil filling nozzles respectively.

[0011] Preferably, the oiling nozzle is cylindrical, and an oiling port is provided on the inner side of the oiling nozzle. The oiling nozzle is sleeved on the surface of the guide rod. The lubricating oil is evenly sprayed on the surface of the guide rod by means of the oiling nozzle, and then the cylinder reciprocates up and down to evenly spread the lubricating oil on the movement trajectory of the cylinder on the guide rod, thereby realizing the lubrication step of the guide rod.

[0012] Preferably, movable wheels are provided at the bottom of the base, and the number of the movable wheels is four. The four movable wheels are symmetrically and fixedly connected to the four corners of the bottom of the base, and the flexibility of the device is improved by the provision of movable wheels.

[0013] It can be seen from the above technical solutions that the mobile diesel pile driver for convenient construction provided by the embodiments of this specification has at least the following beneficial effects:

[0014] (1) The utility model moves the upper and lower pressure plates closer to each other and squeezes the airbag, which then delivers the internal lubricating oil to the oiling nozzle. The oiling nozzle is used to evenly spray the lubricating oil on the surface of the guide rod. The cylinder then reciprocates up and down to evenly spread the lubricating oil on the movement trajectory of the cylinder on the guide rod, thereby achieving the lubrication step of the guide rod and avoiding the problem that the friction coefficient between the guide rod and the cylinder increases due to aging and rusting of the guide rod, which causes difficulty in the movement of the lower piston.

[0015] (2) The utility model provides a counterweight structure, and by inserting the limit groove on the counterweight block into the limit block, the counterweight block can be stacked on the lower piston, thereby increasing the weight of the lower piston, and the weight of the lower piston can be increased without lifting the piston from the cylinder for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

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

[0018] Figure 2 It is a partial schematic diagram of the lubrication structure in the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the air bag, oil filling pipe and oil filling nozzle in the utility model;

[0020] Figure 4 It is a schematic diagram of the counterweight structure in the utility model.

[0021] In the figure: 1. base; 2. lower piston; 3. cylinder; 4. valve stem; 5. bump; 6. oil nozzle; 7. counterweight structure; 701. slider; 702. counterweight block; 8. lubrication structure; 801. extension plate; 802. rotating rod; 803. gear; 804. bar tooth A; 805. upper pressure plate; 806. bar tooth B; 807. lower pressure plate; 808. slide groove; 809. spring; 8010. air bag; 8011. oil filling pipe; 8012. oil filling nozzle; 9. magic rod; 10. guide rod; 11. top block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in 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 in 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] Example 1

[0024] See also Figure 1-Figure 3As shown, a mobile diesel pile driver convenient for construction comprises a base 1, the bottom of the base 1 is provided with moving wheels, the number of the moving wheels is four, the four moving wheels are symmetrical and fixedly connected at the four corners of the bottom of the base 1, the flexibility of the device is improved by the arranged moving wheels, the top of the base 1 is fixedly connected with a strange rod 9, the top of the strange rod 9 is fixedly connected with a top block 11, the strange rod 9 is slidably connected with a lower piston 2, the top of the lower piston 2 is provided with an injection nozzle 6, the strange rod 9 is fixedly connected with a guide rod 10, the guide rod 10 is slidably connected with a cylinder 3, the cylinder 3 is matched with the lower piston 2, the outer wall of the cylinder 3 is fixedly connected with a protrusion 5, the outer wall of the lower piston 2 is provided with a valve stem 4, the protrusion 5 is matched with the valve stem 4, the valve stem 4 is connected with the injection nozzle 6, the diesel injection process is generated by the oil pump, the pressure power generated by the oil pump comes from the valve stem 4, when the valve stem 4 is pressed down, the diesel is injected from the injection nozzle 6, and this pressure The force is achieved by the protrusion 5 squeezing the valve stem 4, and no manual operation is required. A lubrication structure 8 is arranged above the lever 9, and the lubrication structure 8 includes an extension plate 801, and the extension plate 801 is fixedly connected to the outer side of the top block 11. The inner side of the extension plate 801 is rotatably connected to a rotating rod 802 through a bearing. A gear 803 is fixedly sleeved on the surface of the rotating rod 802. A bar tooth A804 and a bar tooth B806 are respectively arranged on the inner side of the extension plate 801. The gear 803 is meshed with the bar tooth A804 and the bar tooth B806 respectively. The bottom of the bar tooth A804 is fixedly connected to an upper pressure plate 805, and the top of the bar tooth B806 is fixedly connected to the upper pressure plate 806. A lower pressure plate 807 is connected, and two slide grooves 808 are provided on the inner side of the extension plate 801. One side of the bar tooth A804 and the bar tooth B806 are fixedly connected to a limiting block respectively. The limiting block contacts and slides with the groove wall of the slide groove 808. The inner wall of the slide groove 808 is fixedly connected with a spring 809. The other end of the spring 809 is fixedly connected with the limiting block. The limiting block slides in the slide groove 808 to limit the bar tooth A804 and the bar tooth B806. The top of the upper pressure plate 805 is fixedly connected with an air bag 8010. The air bag 8010 is connected to the outside and an oil injection pipe 8011 is provided. The oil injection pipe 8011 is connected to the outside of the air bag 8010. The other end of 011 is connected to an oiling nozzle 8012, which is arranged on the guide rod 10. There are two guide rods 10. The other end of the oiling tube 8011 is connected to the two oiling nozzles 8012 respectively. The oiling nozzle 8012 is cylindrical, and an oiling port is arranged on the inner side of the oiling nozzle 8012. The oiling nozzle 8012 is sleeved on the surface of the guide rod 10. The lubricating oil is evenly sprayed on the surface of the guide rod 10 by the oiling nozzle 8012, and then the cylinder 3 reciprocates up and down, so that the lubricating oil can be evenly applied to the movement trajectory of the cylinder 3 on the guide rod 10, thereby realizing the lubrication step of the guide rod 10.

[0025] Furthermore, by bringing the upper pressure plate 805 and the lower pressure plate 807 closer to each other and squeezing the airbag 8010, the airbag 8010 transports the internal lubricating oil to the oiling nozzle 8012, and the lubricating oil is evenly sprayed on the surface of the guide rod 10 by the oiling nozzle 8012. Then, through the up and down reciprocating motion of the cylinder 3, the lubricating oil can be evenly applied to the motion trajectory of the cylinder 3 on the guide rod 10, thereby realizing the lubrication step of the guide rod 10, avoiding the aging and rusting of the guide rod 10, which causes the friction coefficient between the guide rod 10 and the cylinder 3 to increase, causing the lower piston 2 to move with difficulty.

[0026] Example 2

[0027] See also Figure 4 As shown, a counterweight structure 7 is provided at the top of the cylinder 3, and the counterweight structure 7 includes a counterweight block 702. The counterweight block 702 is provided at the top of the cylinder 3, and a limiting groove is provided at the bottom of the counterweight block 702. The counterweight block 702 is slidably connected to the slider 701 at the top of the piston through the limiting groove.

[0028] Furthermore, by setting up the counterweight structure 7, the limiting groove on the counterweight block 702 is inserted into the slider 701, and the counterweight block 702 can be stacked on the lower piston 2, thereby increasing the weight of the lower piston 2, and the weight of the lower piston 2 can be increased without lifting the piston from the cylinder 3 for replacement.

[0029] When the utility model is used, a mobile diesel pile driver convenient for construction is used. When the cylinder 3 falls downward due to gravity, the piston compresses the air in the cylinder 3. The purpose of compression is to facilitate ignition of the diesel mixture sprayed in the air. Since a high-pressure fuel injection nozzle 6 is arranged in the middle of the piston, when the air is compressed, the temperature rises accordingly. When the internal air is compressed to the maximum value, the internal temperature reaches more than 300 degrees. Since the ignition point of diesel is 220 degrees Celsius, the diesel ejected from the fuel injection nozzle 6 in the middle of the piston is ignited. During the explosion of the diesel, expansion force will be generated, and this force will push the diesel to the bottom. The piston 2 moves downward, while the cylinder 3 moves upward. When the two are separated, the high-pressure gas in the cylinder 3 is released. When the kinetic energy of the cylinder 3 is exhausted, it will fall again with gravity. The diesel injection process is generated by the oil pump. The pressure power generated by the oil pump comes from the valve stem 4. When the valve stem 4 is pressed down, the diesel is sprayed from the injector 6, and this pressure is achieved by the protrusion 5 squeezing the valve stem 4, and no manual operation is required; when the cylinder 3 moves upward and hits the upper pressure plate 805, the bar tooth A804 moves upward with the upper pressure plate 805. Since the bar tooth A804 is meshed with the gear 803, the gear 804 is engaged with the gear 803. , the bar tooth A804 drives the gear 803 to rotate. Since the gear 803 is also meshed with the bar tooth B806, the gear 803 drives the bar tooth B806 to move downward. At this time, the lower pressure plate 807 moves downward with the bar tooth B806. The upper pressure plate 805 and the lower pressure plate 807 approach each other and squeeze the airbag 8010. Since the airbag 8010 is a rubber airbag 8010 and is filled with lubricating oil, the airbag 8010 can recover after being squeezed. When the airbag 8010 is squeezed, the internal lubricating oil flows to the oiling nozzle 8012 through the oiling pipe 8011. 2 The lubricating oil is sprayed evenly on the surface of the guide rod 10, and then the cylinder 3 reciprocates up and down to evenly spread the lubricating oil on the movement track of the cylinder 3 on the guide rod 10, thereby realizing the lubrication step of the guide rod 10, avoiding the problem that the friction coefficient between the guide rod 10 and the cylinder 3 increases due to aging and rusting of the guide rod 10, and causing the piston to slide difficultly; as the sinking depth of the pile increases, the soil layer near the pile becomes more and more solid due to compression, and the thrust required for the pile to continue to sink is also increasing. It is necessary to insert the limit groove on the counterweight block 702 into the slider 701 to increase the weight of the piston.

[0030] The above implementation methods are only used to illustrate the embodiments of the present utility model, and are not limitations of the embodiments of the present utility model. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present utility model. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present utility model. The patent protection scope of the embodiments of the present utility model should be limited by the claims.

Claims

1. A mobile diesel pile driver for convenient construction, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a lever (9), the top of the lever (9) is fixedly connected to a top block (11), the lever (9) is slidably connected to a lower piston (2), the top of the lower piston (2) is provided with an oil nozzle (6), the lever (9) is fixedly connected to a guide rod (10), the guide rod (10) is slidably connected to a cylinder (3), the cylinder (3) is arranged in cooperation with the lower piston (2), a lubrication structure (8) is arranged above the lever (9), the lubrication structure (8) comprises an extension plate (801), the extension plate (801) is fixedly connected to The extension plate (801) is connected to the outside of the top block (11); the inner side of the extension plate (801) is rotatably connected to a rotating rod (802) via a bearing; a gear (803) is fixedly sleeved on the surface of the rotating rod (802); a bar tooth A (804) and a bar tooth B (806) are respectively arranged on the inner side of the extension plate (801); the gear (803) is respectively meshed with the bar tooth A (804) and the bar tooth B (806); the bottom of the bar tooth A (804) is fixedly connected to an upper pressure plate (805); the top of the bar tooth B (806) is fixedly connected to a lower pressure plate (807).

2. A mobile diesel pile driver for convenient construction according to claim 1, characterized in that: The top of the upper pressure plate (805) is fixedly connected to an air bag (8010), the outside of the air bag (8010) is connected to an oil injection pipe (8011), the other end of the oil injection pipe (8011) is connected to an oil injection nozzle (8012), and the oil injection nozzle (8012) is arranged on the guide rod (10).

3. A mobile diesel pile driver for convenient construction according to claim 1, characterized in that: A counterweight structure (7) is arranged at the top of the cylinder (3), the counterweight structure (7) comprising a counterweight block (702), the counterweight block (702) being arranged at the top of the cylinder (3), a limiting groove being provided at the bottom of the counterweight block (702), and the counterweight block (702) being slidably connected to a slider (701) at the top of the piston via the limiting groove.

4. A mobile diesel pile driver for convenient construction according to claim 1, characterized in that: Two slide grooves (808) are provided on the inner side of the extension plate (801); one side of the bar-shaped tooth A (804) and the bar-shaped tooth B (806) are respectively fixedly connected to limit blocks; the limit blocks are in contact with the groove wall of the slide groove (808) and are slidably connected; a spring (809) is fixedly connected to the inner wall of the slide groove (808); the other end of the spring (809) is fixedly connected to the limit block.

5. A mobile diesel pile driver for convenient construction according to claim 1, characterized in that: A convex block (5) is fixedly connected to the outer wall of the cylinder (3), a valve stem (4) is provided on the outer wall of the lower piston (2), the convex block (5) and the valve stem (4) are arranged in coordination, and the valve stem (4) is connected to the oil injection nozzle (6).

6. A mobile diesel pile driver for convenient construction according to claim 2, characterized in that: The number of the guide rods (10) is two, and the other end of the oil injection pipe (8011) is connected to two oil injection nozzles (8012) respectively.

7. The mobile diesel pile driver for convenient construction according to claim 1, characterized in that: The oiling nozzle (8012) is cylindrical in shape, an oiling port is provided on the inner side of the oiling nozzle (8012), and the oiling nozzle (8012) is sleeved on the surface of the guide rod (10).

8. The mobile diesel pile driver for convenient construction according to claim 1, characterized in that: The bottom of the base (1) is provided with moving wheels, the number of the moving wheels being four, and the four moving wheels are symmetrically and fixedly connected at the four corners of the bottom of the base (1).

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