RU215131U1 - Installation small-sized self-propelled pile-driving - Google Patents

Abstract

The utility model relates to road construction, namely, to technological equipment for driving and extracting metal piles and posts from the ground, and can be used primarily in the construction and repair of road barriers. For driving and extracting metal piles and racks from the ground, a small-sized self-propelled pile-driving unit is proposed, which contains a caterpillar undercarriage on which pile-driving equipment with a turntable is mounted, a mast with a hydraulic cylinder, a slider and a hydraulic hammer, and a double-circuit hydraulic system that ensures the operation of the main equipment, additional and manual hydraulic tools, while the dual-circuit hydraulic system includes two-section unregulated hydraulic pumps, a device for accelerated heating of the hydraulic fluid, two hydraulic hoses for connecting a manual hydraulic tool: a jackhammer, grinder, manual wrench, welding generator, and a matching unit that maintains the necessary indicators operating pressure of the working fluid and the flow rate of the working fluid for the performance of a hand hydraulic tool, while springs are placed in the lower part of the carriage body impact plate, which is struck by the striker of the hydraulic hammer. The inventive device allows to reduce the weight and size characteristics of the product and expand the functionality to ensure a comprehensive repair of the road barrier.

Description

The utility model relates to the field of road construction, namely, to technological equipment for driving and extracting metal piles and posts from the ground, and can be used mainly in the construction and repair of road barriers.

There are various methods and pile equipment for driving and extracting various kinds of pile elements and metal racks of road barriers from the ground (for example, copyright certificate SU 746041, IPC E02D 7/16, 1980; US patent 5494117, IPC E02D 7/10 , E02D 7/00, 1996; utility model patent RU 127757 U1, IPC E01B 37/00, 2012, Bull. No. 13, 2013; utility model patent RU 142774 U1, IPC E02D 7/00 , 2013, Bull. No. 19, 2014; utility model patent RU 210391 U1, IPC E02D 7/00, 2021, Bull. No. 11, 2022; utility model patent RU 157085 U1, IPC E02D 7/22, 2015, Bull. No. 32, 2015; patent for invention RU 2250305 C1, 2003, IPC E02D 7/10, 2005; publication WO/2021/053498, IPC E02D 7/ 08, E02D 11/00, E04H 17/26, E01F 13/12, E01F 15/04, 2019).

However, most of the known pile driving equipment is quite complex and bulky specialized installations with stationary pile drivers based on diesel hammers that are permanently installed on jib cranes, self-propelled crawler chassis of excavators and special machines, which, with many positive qualities, are characterized by unsatisfactory start-up when immersing pile piles. elements in soft soils, as well as in conditions of low ambient temperature. In addition, such equipment is mainly used when driving and extracting long-sized piles from the ground at construction sites where there are no restrictions on blocking the roadway.

A known method of clogging and extracting metal columns from the ground, mainly during the construction and repair of barrier fences of roads and a pile driver for its implementation, containing an automobile tractor, a manipulator installation placed on it, a mobile pile driver made on the basis of a hydraulic hammer mounted on a movable carriage and its drive hydraulic cylinder movement, and a hydraulic system with a pump, an oil tank, hydraulic distributors and corresponding communication lines, while the manipulator installation is made in the form of a crane-manipulator with remote outriggers and a multi-link articulated-lever swivel boom of variable reach, the driver is portable with the possibility of hanging it at the end of the boom by means of a removable flexible suspension, the hydraulic system of the manipulator installation was used as a hydraulic drive of the copra with the connection of both power lines of the hydraulic cylinder for moving the carriage and the hydraulic pressure line of the hydraulic hammer to it through quick release valves and gasket (patent for invention RU 2211895 C2, IPC E02D 11/00, 2005, Bull. No. 25, 09/10/2003).

Known percussion unit for the production of road works, mainly for immersing fence posts, including a base chassis, a platform mounted on it, a mast with a hydraulic cylinder, a slider and a hydraulic hammer and a mechanism for setting the mast in the working position, which is made of two articulated levers, the first of them at one end pivotally connected by a common axis with a faceplate mounted on the platform, having several fixed positions, and the other end - with the second lever, at the free end of which the mast is fixed by means of a universal joint, while the levers are located with the possibility of control by means of hydraulic control cylinders having a floating position, one of which is installed between the faceplate and the first lever, and the second - between the levers, the hydraulic hammer is mounted on a slider placed on the mast and suspended on a cable passing through a movable block connected to the rod of a hydraulic cylinder mounted on the mast, and the other end of the cable is connected with a mast mounted with the possibility of transverse and longitudinal inclinations by means of hydraulic control cylinders, a hydraulically controlled heel with a cutout is installed at the lower end of the mast, an earring is freely placed on the hinge of the articulation of the levers, which is connected to the faceplate by means of one rod, and the other rod is connected to the universal joint (patent for invention RU 2250305 C1, IPC E02D 7/10, 2003, Bull. No. 11, 2005).

Despite the advantages in the construction and repair of barrier fences of highways, the known installations have the following disadvantages:

placement on automobile base chassis with significant overall dimensions, which adversely affects the throughput of highways when they are repaired using the specified equipment;

limited functionality with only immersion and extraction of barrier posts without the possibility of a comprehensive repair of the road barrier (drilling wells for piles, cutting and welding of the metal structures of the barrier).

The objective of the claimed utility model is to eliminate these shortcomings. The technical result consists in reducing the weight and size characteristics and expanding the functionality to ensure a comprehensive repair of the road barrier.

The problem is solved, and the technical result is achieved due to the fact that the small-sized self-propelled pile-driving installation contains a caterpillar undercarriage on which pile-driving equipment with a turntable is mounted, a mast with a hydraulic cylinder, a slider and a hydraulic hammer, and a double-circuit hydraulic system that ensures the operation of the main equipment, additional and manual hydroficated tools, while the dual-circuit hydraulic system includes two-section unregulated hydraulic pumps, a device for accelerated heating of the hydraulic fluid, two hydraulic hoses for connecting a manual hydroficated tool: a jackhammer, a grinder, a manual wrench, a welding generator - and a matching unit that maintains the necessary indicators working pressure of the working fluid and the flow rate of the working fluid for the performance of a hand-held hydraulic tool, while in the lower part of the body of the carriage a spring is placed this impact plate, which is struck by the striker of the hydraulic hammer.

Reducing the weight and size characteristics of the installation and expanding its functionality for the repair of road barriers is provided by an improved design of the installation:

a device for accelerated heating of the hydraulic fluid in winter is installed in the hydraulic system; (this attribute is not specified in the formula)

the inclusion of a matching unit in the hydraulic system allows the use of a manual hydraulic tool;

the mast is laid along the caterpillar undercarriage, which ensures a safe and convenient process of transporting the unit;

the presence of a rotary device allows you to rotate the working equipment without turning the caterpillar undercarriage during the operation of the installation;

to facilitate the removal of the rack from the impact plate in case of damage to the head, the lower part of the carriage body is spring-loaded.

The small-sized self-propelled pile-driving installation can be used for the following types of work:

for driving barrier posts into the ground from the side of the unit and when turning the mast along the axis of the unit in the front part of the unit;

for extraction by impact method of incorrectly clogged or damaged racks;

for drilling wells in the ground for the installation of racks;

for the use of manual hydraulic tools.

The claimed utility model is illustrated by drawings:

fig. 1 - general view;

fig. 2 - rear view;

fig. 3 - left side view;

fig. 4 - section;

fig. 5 - hydraulic circuit diagram;

using the following notation:

1 - flashing beacon;

2 - locking pin;

3 - turntable;

4 - upper latch;

5 - block;

6 - six-way valve;

7 - hydraulic hammer;

8 - spring-loaded shock plate;

9 - carriage;

10 - hook;

11 - mast;

12 - lights;

13 - mast laying hydraulic cylinder;

14 - beam extension hydraulic cylinder;

15 - retractable beam;

16 - root beam;

17 - oil tank;

18 - fuel tank;

19 - fire extinguisher;

20 - canister for fuel storage;

21 - power plant;

22 - "gas" lever;

23 - pressure gauge;

24 - control panel;

25 - slinging brackets;

26, 27 - hydraulic distributors;

28 - base plate;

29 - bubble type level;

30 - ruler;

31 - lower latch;

32 - mast outrigger hydraulic cylinder;

33 - hydraulic cylinder for lifting and lowering the carriage;

34 - bracket;

35 - left caterpillar board;

36 - welded frame;

37 - pallet for additional equipment;

38 - right caterpillar board;

39 - indicator of the depth of immersion of the rack;

40 - tool box;

41 - sliding guides;

42 - axis;

43 - round guide;

44 - double-rod mast hydraulic cylinder to the right and left;

45 - hydraulic cylinder for turning the mast;

46 - batteries;

47 - HATZ engine;

48 - control levers for onboard hydraulic motor-reducers;

49 - crane six-way gearshift;

50 - three-way valve for switching the engine to warm up the RJ (working fluid);

51 - telescopic beam.

52 - double gear hydraulic pump;

53 - matching block;

54 - quick connector socket;

55 - quick connector nipple;

56 - hydraulic rotator;

57 - crane;

58 - check valve;

59 - air oil cooler;

60 - distributor;

61 - pressure gauge switch;

62 - safety valve.

The installation consists of a caterpillar undercarriage, where a pile driving part with a hydraulic drive system, an electrical equipment system, additional equipment (hydraulic rotator 56) and a set of manual hydraulic tools are mounted on a turntable that provides a turn of 90 degrees.

The caterpillar undercarriage is a welded frame 36 with right 38 and left 35 caterpillar sides welded to it. The welded frame 36 is equipped with a footboard and a handrail (not shown in the figures), on which the control panel 24 is mounted for starting and controlling the HATZ 47 engine, which, together with the built-in unit of two double gear hydraulic pumps 52, is included in the power plant 21. On the welded frame 36, elements of the hydraulic systems: “gas” lever 22, control levers for on-board hydromotor-reducers 48, six-way gearshift valve 49, three-way valve for switching engine operation to warm-up RZH 50, fuel 18 and oil 17 tanks, fire extinguisher 19, canister for fuel storage 20, tool box 40 and a tray for additional equipment 37. In the tool box 40, batteries 46, a fuse box and a mass switch are located in a special compartment. For loading and unloading of a small-sized self-propelled pile-driving installation, slinging brackets 25 are welded on the beams of the right 38 and left 35 caterpillar sides.

A frame is also installed on the welded frame 36, where the turntable 3 is mounted, where the telescopic beam 51 is fixed, which rotates 90 degrees. In this case, the rotation is carried out manually with the fixation of the telescopic beam 51 by the locking pin 2 in the transport and working positions.

The telescopic beam 51 with a fixed rotating beacon 1 consists of a fixed root beam 16 and a retractable beam 15. The retractable beam 15 moves along the axis of the root beam 16 along the axis of the root beam 14 along the sliding supports with the help of the beam extension hydraulic cylinder 14 and allows you to extend the bracket 34 together with the mast to a distance of up to 600 mm 11 and carriage 9. At the front end of the sliding beam 15, with the help of a round guide 43, a bracket 34 and a two-rod mast hydraulic cylinder are fixed to the right and left 44.

Bracket 34 is equipped with a mast laying hydraulic cylinder 13, a double-rod mast right-left hydraulic cylinder 44 and a mast rotation hydraulic cylinder 45 for adjusting it and mast 11 in three directions relative to the welded frame 36: longitudinal, transverse and vertical positions. The rotation of the bracket 34 in the vertical plane is carried out by the hydraulic cylinder for laying the mast 13. The rotation of the mast 11 in the transverse plane at an angle of ±15 degrees is controlled by the hydraulic cylinder for turning the mast 45. With the help of the hydraulic cylinder of the two-rod mast right and left 44, the bracket 34 and the mast 11 move in the transverse direction to the right and left by 130 mm. To control the hydraulic hammer 7 and the actuators of the installation, there are hydraulic distributors 26 and 27 on the bracket 34.

The mast 11 is connected to the bracket 34 at two points: in the lower part in the center of the bracket 34 by means of the axis 42 and in the upper part - by sliding guides 41. This connection allows the mast to deviate to the right and left to compensate for the slopes of the roadway. The mast 11 is a box-shaped structure, inside of which the hydraulic cylinder of the outrigger of the mast 32 and the hydraulic cylinder of lifting and lowering the carriage 33 are located. with which the carriage 9 moves. In the lower part of the mast 11 there is a hydraulic cylinder of the outrigger of the mast 32, on the rod of which, with the help of a ball joint, a base plate 28 is fixed, designed to stop the mast 11 into the ground. To illuminate the workplace, the mast 11 is equipped with two lights 12.

The mast 11 has a bubble type level 29, which controls the installation of the mast 11 in two mutually perpendicular directions relative to the horizontal plane. To control the depth of driving of the racks, a ruler 30 is fixed on the mast 11.

Carriage 9 consists of a housing into which a hydraulic hammer 7 is inserted for driving racks. The carriage 9 moves along the sliding guides 41 with anti-friction inserts along the mast 11. The hydraulic hammer 7 is fixed in the welded housing with two covers and, together with the carriage 9, moves down under its own weight, which ensures the most efficient use of the impact force. In the lower part of the body of the carriage 9 there is a spring-loaded shock plate (chabot) 8, which is hit by the striker of the hydraulic hammer 7. A bar is attached to the body of the carriage 9 from below, preventing the spring-loaded shock plate 8 from falling out, as well as a hook 10 for pulling the racks out of the ground. In the transport position and during repair work, the carriage 9 is fixed on the mast 11 with two clamps. To connect additional options to the hydraulic system, the carriage 9 has a six-way valve 6.

To fix the rack at the place of clogging on the mast 11 and the carriage 9, a lower 31 and upper 4 rack lock is provided.

The hydraulic system of the installation is double-circuit open type with a built-in block of two hydraulic pumps of gear double hydraulic pumps 52, improved with two hydraulic hoses for connecting a manual hydraulic tool and additional components, which ensures its performance with the specified technical parameters. To control the pressure in the hydraulic system, a pressure gauge 23 is installed on the tracked undercarriage with a pressure gauge switch 61 for serial connection to hydraulic flows. The pressure setting in the hydraulic circuits is carried out using safety valves 62. The indicators of working pressure and the volume of working fluid consumed differ for the base caterpillar chassis and hydraulic tools. Matching unit 53 allows you to provide the necessary indicators of working pressure and flow rate of the working fluid, ensuring the operability of the hydraulic tool, by reducing the pressure of the working fluid of the hydraulic system of the installation to the required working pressure of the hydraulic tool using the built-in safety valve and keeping it under load using the built-in pressure reducing valve. Adjustment of the required flow rate of the working fluid is carried out using the flow regulator built into the matching unit 53. The connection of the hydraulic tool to the installation is carried out by means of half-couplings of quick couplings socket 54 and half-couplings of quick couplings nipple 55. Cranes 57 disconnect the system from the consumption of hydraulic tools, and the check valve 58 eliminates incorrect connection hydraulic equipment to the hydraulic system of the installation. The power supply of the hand hydraulic tool is carried out through the pressure and drain hoses. The sleeves are equipped on both sides with half-couplings of quick couplings socket 54 and nipple 55, and mating half-couplings of quick couplings socket 54 and nipple 55 are installed on the working fittings of the hydraulic tool and on the outlet and drain fitting of the matching block 53.

The electrical equipment of the installation provides start and emergency stop of the HATZ 47 engine, automatic stop of the hydraulic hammer 7 depending on the set height of the barrier post driving, operation of the air oil cooler 59, switching on of lighting, light and sound alarms.

The power supply of the small-sized self-propelled pile-driving installation is carried out with a voltage of 12 V from the generator according to a single-wire circuit with a minus on the case. Power is supplied through the power connector to the electronic engine control unit (ECU) and to the emergency stop of the HATZ 47 engine. From the ECU, power is supplied through switches, contactors and relays to consumers of electrical energy of a small-sized self-propelled piling installation (HATZ engine, air oil cooler electric motor 59, lighting, light and sound alarms, thermal relays and electromagnetic sensors).

The thermal switch automatically turns on and off the cooler fan, maintaining the RJ temperature within the specified limits.

Turning on and off lighting, light and sound alarms is carried out using switches.

The engine ECU monitors the operation of the HATZ engine systems and, upon receiving an alarm signal from the engine sensors, stops its operation.

Upon reaching a certain mark on the ruler 30 of the height of the blocking of the barrier post, a signal is sent from the sensor to the electromagnetic coil of the distributor 60, as a result, the circuit is bridged in the coil, and the distributor 60 turns off the RJ flow to the hydraulic hammer 7, the hydraulic hammer 7 automatically stops.

The applicant has manufactured and put into operation a small-sized self-propelled pile-driving unit, developed in accordance with the proposed technical solution.

The small-sized self-propelled pile-driving unit is operated in the regions of the Far North and equated to them, where other self-propelled pile drivers ORTEKO 1000HD (ORTEKO 800HD) and GAYK HRE3000 (GAYK HRE1000) are not used. The overall dimensions of ORTEKO 1000HD (2280x2150x2850), in contrast to the claimed installation (3800x1900x2440), limit its transportation by KAMAZ-type trucks on the roads of the Russian Federation without special permission and route selection and require a special vehicle with a low platform.

The operation of a small-sized self-propelled pile-driving plant in various climatic regions confirmed the claimed technical result.

Claims (1)

Small-sized self-propelled pile-driving unit, containing a caterpillar undercarriage, on which pile-driving equipment with a turntable is mounted, a mast with a hydraulic cylinder, a slider and a hydraulic hammer, and a dual-circuit hydraulic system that ensures the operation of the main equipment, additional and manual hydraulic tools, characterized in that the dual-circuit hydraulic system includes two-section unregulated hydraulic pumps, a device for accelerated heating of the hydraulic fluid, two hydraulic hoses for connecting a manual hydraulic tool: a jackhammer, a grinder, a manual wrench, a welding generator, and a matching unit that maintains the necessary indicators of the working pressure of the working fluid and the flow rate of the working fluid for performance hand hydraulic tool, while in the lower part of the body of the carriage there is a spring-loaded impact plate, which is struck by the striker of the hydraulic hammer.

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