阅读说明：本技术 一种工程机械用回转插销定位装置 (Rotary bolt positioning device for engineering machinery ) 是由 王子丰 于 2021-01-19 设计创作，主要内容包括：一种工程机械用回转插销定位装置,包括摆动油缸、连接体、桅杆夹持体、插销油缸,所述摆动油缸与连接体连接,连接体与桩工机械主机车体连接,所述桅杆夹持体连接桩工机械的桅杆,所述摆动油缸能够驱动桅杆夹持体旋转摆动,在所述桅杆夹持体的外圆周上均匀布置有若干个插孔,所述插销油缸安装在连接体上,所述插销油缸上的插销能够穿接在连接体与桅杆夹持体上的插孔中,将连接体与桅杆夹持体之间的相对位置锁定。本发明可实现履带式打桩机桅杆摆动的自动定位,保证施工精度和稳定性,减少了工人的劳动强度,提高了施工作业效率,同时又能使打桩机适用于更多的工况。(The utility model provides an engineering machine tool is with gyration bolt positioner, includes swing hydro-cylinder, connector, mast cramping body, bolt hydro-cylinder, the swing hydro-cylinder is connected with the connector, and the connector is connected with the pile worker machinery host computer car body, the mast of pile worker machinery is connected to the mast cramping body, the swing hydro-cylinder can drive the rotatory swing of mast cramping body evenly arranged a plurality of jack on the outer circumference of mast cramping body, the bolt hydro-cylinder is installed on the connector, the bolt on the bolt hydro-cylinder can cross in the jack on connector and mast cramping body, locks the relative position between connector and the mast cramping body. The invention can realize the automatic positioning of the swinging of the mast of the crawler-type pile driver, ensure the construction precision and stability, reduce the labor intensity of workers, improve the construction operation efficiency and simultaneously ensure that the pile driver is suitable for more working conditions.)

1. The utility model provides an engineering machine tool is with gyration bolt positioner, its characterized in that, includes swing hydro-cylinder, connector, mast cramping body, bolt hydro-cylinder, the swing hydro-cylinder is connected with the connector, and the connector is connected with piling machinery host computer car body, the mast of piling machinery is connected to the mast cramping body, the swing hydro-cylinder can drive the rotatory swing of mast cramping body a plurality of jack has evenly been arranged on the outer circumference of mast cramping body, the bolt hydro-cylinder is installed on the connector, the bolt on the bolt hydro-cylinder can cross in the jack on connector and mast cramping body, locks the relative position between connector and the mast cramping body.

2. The rotary plug pin positioning device for engineering machinery according to claim 1, wherein an output shaft of the swing cylinder is connected with a swing shaft, the mast clamping body is sleeved on the swing shaft and is fixedly connected with the swing shaft through an expansion sleeve connector, the connecting body is sleeved on the swing shaft and at the upper end and the lower end of the mast clamping body, and the connecting body and the swing shaft can rotate relatively.

3. The rotary latch positioning device for construction machinery as claimed in claim 2, wherein an axial copper bush is provided between the connecting body and the swing shaft, and a radial copper bush is provided between the connecting body and the mast holding body.

4. The rotary latch positioning device for construction machinery as claimed in claim 1 or 2, further comprising an encoder, wherein the encoder detects the angular displacement of the swing cylinder.

5. The rotary latch positioning device for engineering machinery according to claim 4, wherein the encoder is fixed on the gland through an encoder connecting screw, the gland is fixedly connected with the connecting body through a gland connecting bolt, and a rotating shaft of the encoder is connected with a swing shaft on the swing cylinder.

Technical Field

The invention relates to the technical field of engineering machinery, in particular to a rotary bolt positioning device for rotating, locking and accurately positioning a mast of a crawler type pile driver.

Background

The engineering machinery used for pile driving operation at present mainly comprises a hydraulic pile driver, a hydraulic vibration hammer, a hydraulic impact hammer, a walking pile driver and a crawler pile driver. The crawler-type pile driver is an engineering machine for driving a steel sheet pile into the ground by using a vibration hammer or an impact hammer which is equipped by the crawler-type pile driver, and mainly comprises a mechanical structure, a power system, an electro-hydraulic control system, a working machine and the like, wherein the mechanical structure comprises a luffing mechanism, a tilting mechanism, a swinging mechanism, a telescopic mast mechanism, a hoisting mechanism and the like. The pile driving principle is that the steel pile is driven into the ground by the self weight of the pile driver and the vibration or hammering of the working machine. The pile pulling construction principle is that a reaction force seat at the bottom of the mast props against the ground, an oil cylinder of the auxiliary mast pushes the auxiliary mast to move upwards, and a working machine is driven to move upwards through a pulley, so that pulling force is applied to the pile. The machine has the advantages of high integration level, small volume, high efficiency and the like, can not only realize the operations of vibration pile sinking, impact pile driving and static pressure pile planting of various steel piles, but also realize the operations of pre-drilling, diaphragm wall, deep stirring and the like.

The crawler pile driver meets a plurality of irresistible factors in the construction process, such as foundation design requirements, special landforms and other conditions, the pile driver needs to swing the mast for construction at a certain angle, and the existing crawler pile driver often cannot be smoothly locked by a bolt in the swinging and positioning processes, so that a worker needs to continuously repeat operation, the labor intensity is increased, and the operation efficiency is reduced. In some severe construction environments, the safety of the pile driver and workers is directly affected.

Disclosure of Invention

The invention aims to provide a rotary bolt positioning device for engineering machinery, which can realize automatic positioning of swinging of a mast of a crawler-type pile driver, ensure construction precision and stability, reduce labor intensity of workers, improve construction operation efficiency and simultaneously enable the pile driver to be suitable for more working conditions.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an engineering machine tool is with gyration bolt positioner, includes swing hydro-cylinder, connector, mast cramping body, bolt hydro-cylinder, the swing hydro-cylinder is connected with the connector, and the connector is connected with the pile worker machinery host computer car body, the mast of pile worker machinery is connected to the mast cramping body, the swing hydro-cylinder can drive the rotatory swing of mast cramping body evenly arranged a plurality of jack on the outer circumference of mast cramping body, the bolt hydro-cylinder is installed on the connector, the bolt on the bolt hydro-cylinder can cross in the jack on connector and mast cramping body, locks the relative position between connector and the mast cramping body.

The output shaft of the swing oil cylinder is connected with a swing shaft, the mast clamping body is sleeved on the swing shaft and is fixedly connected with the swing shaft through an expansion sleeve connector, the connecting body is sleeved on the swing shaft and at the upper end and the lower end of the mast clamping body, and the connecting body and the swing shaft can rotate relatively.

An axial copper sleeve is arranged between the connecting body and the swinging shaft, and a radial copper sleeve is arranged between the connecting body and the mast clamping body.

The device also comprises an encoder, wherein the encoder detects the swing angular displacement of the swing oil cylinder.

The encoder is fixed on the gland through an encoder connecting screw, the gland is fixedly connected with the connecting body through a gland connecting bolt, and a rotating shaft of the encoder is connected with a swinging shaft on the swinging oil cylinder.

Compared with the prior art, the invention has the beneficial effects that:

1) the expansion sleeve coupling is used for replacing key connection, no reverse gap exists, and the axial direction and the radial direction of the oscillating shaft are fixed. The more accurate positioning angle of the pile driver in the swing range is realized, and the automatic control becomes possible. The pile driver is suitable for more working conditions, and construction flexibility is stronger.

2) The swing mechanism and the pin positioning mechanism are simple in structure, compact and reasonable in configuration, good in lubricating property and high in protection level, the failure rate is reduced, and the stability is improved.

3) The automatic operation of a series of actions of pin pulling, gear shifting and pin plugging can be realized, the labor intensity of workers is reduced, and the piling working efficiency is improved.

4) The bolt device, the swing oil cylinder and the swing shaft are all in detachable connection mode, so that the assembly, the use and the maintenance are convenient and fast.

Drawings

Fig. 1 is a schematic view of the installation of the invention on a crawler pile driver.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a top view of fig. 2.

In the figure: 1. the pile driving device comprises a swing oil cylinder, 2 parts of a swing oil cylinder connecting bolt, 3 parts of a mast clamping body, 4 parts of a connecting body, 5 parts of a swing shaft, 6 parts of a lower radial copper sleeve, 7 parts of a lower axial copper sleeve, 8 parts of an upper radial copper sleeve, 9 parts of an upper axial copper sleeve, 10 parts of a bolt, 11 parts of a bolt oil cylinder, 12 parts of an encoder, 13 parts of an encoder connecting screw, 14 parts of a gland, 15 parts of a gland connecting bolt, 16 parts of an outer O-shaped ring, 17 parts of an inner O-shaped ring, 18 parts of an expansion sleeve coupler, 19 parts of a pile driving machine main body, 20 parts of a mast tilting device of the pile driving machine main body, 21 parts of a mast and 22 parts of.

Detailed Description

The present invention will be described in detail below, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1-3, a rotary bolt positioning device for construction machinery includes a swing cylinder 1, a connector 4, a mast holding body 3, and a bolt cylinder 11, where the swing cylinder 1 is connected to the connector 4, the connector 4 is connected to a main body 19 of a piling machine, the mast holding body 3 is connected to a mast 21 of the piling machine, the swing cylinder 1 can drive the mast holding body 3 to swing rotationally, a plurality of insertion holes 22 are uniformly arranged on an outer circumference of the mast holding body 3, the bolt cylinder 11 is installed on the connector 4, and a bolt 10 on the bolt cylinder 11 can be threaded through the insertion holes 22 on the connector 4 and the mast holding body 3 to lock a relative position between the connector 4 and the mast holding body 3.

The output shaft of the swing oil cylinder 1 is connected with a swing shaft 5, the mast clamping body 3 is sleeved on the swing shaft 5 and is fixedly connected with the swing shaft 5 through an expansion sleeve connector 18, the connecting body 4 is sleeved on the swing shaft 5 and at the upper end and the lower end of the mast clamping body 3, and the connecting body 4 and the swing shaft 5 can rotate relatively.

An axial copper sleeve is arranged between the connecting body 4 and the swinging shaft 5, and a radial copper sleeve is arranged between the connecting body 4 and the mast clamping body 3. The relative sliding parts among the swinging shaft 5, the mast clamping body 3 and the connecting body 4 are provided with sliding copper sleeves in the radial direction and sliding copper plates in the axial direction. The axial positioning of the mast clamping body 3 is realized by a lower axial copper bush 7 and an upper axial copper bush 9, and the radial positioning is realized by a lower radial copper bush 6 and an upper radial copper bush 8.

The device further comprises an encoder 12, and the encoder 12 detects the swing angle displacement of the swing oil cylinder 1.

The encoder 12 is fixed on a gland 14 through an encoder connecting screw 13, the gland 14 is fixedly connected with the connecting body 4 through a gland connecting bolt 15, and a rotating shaft of the encoder 12 is connected with the swinging shaft 5 on the swinging oil cylinder 1.

The encoder 12 determines the angle of the mast clamp 3 to the connection body 4. The outer and inner O-rings 16, 17 ensure sealing between the gland 14 and the connector 4 and between the encoder 12 and the gland 14, respectively.

The encoder 12 is a single-turn absolute value encoder, has high precision and high detection frequency, detects the angles of the mast clamping body 3 and the connecting body 4 in real time, communicates with the equipment master controller, and the master controller controls the opening degree and the opening and closing time of the valve of the swing oil cylinder 1 to complete the rotation of the angles, so that the automatic operation of a series of actions of pin pulling, rotation and pin plugging is realized.

In the embodiment, 5 insertion holes 22 with the same interval angle are arranged on the mast clamping body 3 and are used as 5 gears of the swing angle of the mast.

The bolt oil cylinder 11 is fixed on the connecting body 4, and drives the bolt 10 to be inserted into and pulled out of the jack 22 of the mast clamping body 3, so as to realize positioning. When the bolt oil cylinder 11 drives the bolt 10 to be inserted, the bolt 10 and the connecting body 4 form a simply supported beam through the connecting body 4, the mast clamping body 3 and the jack of the connecting body 4, so that the stress is more reasonable, the bolt 10 is not easy to bend, and the bolt is durable.

The swing shaft 5 is connected with the output shaft of the swing oil cylinder 1 through a spline, and the swing oil cylinder is simple in structure, high in bearing capacity, simple and convenient to assemble and high in flexibility of angle adjustment during installation. The cylinder body of the swing oil cylinder 1 is fastened with the connecting body 4 through a swing oil cylinder connecting bolt 2, the swing oil cylinder 1 provides torque for the swing shaft 5, and the mast clamping body 3 is driven to drive the mast 21 to swing.

The swing shaft 5 is fixedly connected with the mast clamping body 3 through the expansion sleeve coupling 18, so that the swing shaft and the mast clamping body cannot move relatively in the radial direction, the axial direction and the circumferential direction, and the torque is transmitted through the swing shaft 5. The expansion sleeve coupler 18 is small in size, convenient and fast to install and disassemble, large in stress, capable of being used in a superposition mode, good in concentricity after assembly, capable of positioning in the radial direction, the axial direction and the circumferential direction simultaneously, and free of any installation gap and any forward and reverse movement gap between the swinging shaft 5 and the mast clamping body 3, and therefore the encoder 12 can accurately reflect the angle between the mast clamping body 3 and the connecting body 4.

The quick disassembly and assembly performance of the invention ensures that the adjustment is very convenient, and the assembly and maintenance efficiency is improved. The whole machine adopts a grease lubrication centralized lubrication system, and the lubricating oil is respectively led to the contact surfaces of the lower radial copper bush 6, the lower axial copper bush 7, the upper radial copper bush 8 and the upper axial copper bush 9 and the mast clamping body 3 through the connecting body 4, so that sufficient lubrication can be provided when the device works. The outer O-ring 16 and the inner O-ring 17 ensure the sealing performance of the oscillating shaft 5, so that the oscillating shaft 5 is prevented from rusting and deterioration of lubricating oil due to contact with water.