CN211113585U

CN211113585U - Non-unhooking dynamic compactor with lifted oil cylinder

Info

Publication number: CN211113585U
Application number: CN201921559418.0U
Authority: CN
Inventors: 王美成; 石培科; 张作良
Original assignee: Changsha Zhongneng Equipment Manufacturing Co ltd
Current assignee: Changsha Zhongneng Equipment Manufacturing Co ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-07-28
Anticipated expiration: 2029-09-18

Abstract

The utility model provides a non-unhooking formula dynamic compaction machine that hydro-cylinder promoted, including chassis, side support, top roof beam, elevating system, ram, be equipped with the passageway on the chassis, the passageway is used for the ram to pass through when going up and down between ground and top roof beam, the passageway sets up in the rectangle within range that uses the chassis as center and length and width respectively are 2/3L 1 and 2/3L 2 on the chassis, wherein L1 and L2 are the length and width of chassis respectively, a plurality of side supports evenly encircle the passageway periphery that sets up on the chassis, the top roof beam is located the top of side support, elevating system installs on top roof beam and side support/chassis, elevating system and ram are connected, and go up and down with the drive ram.

Description

Non-unhooking dynamic compactor with lifted oil cylinder

Technical Field

The utility model belongs to the technical field of the dynamic compactor, especially, relate to a non-formula dynamic compactor that colludes that takes off that hydro-cylinder promoted.

Background

At present, a dynamic compactor generally adopts a structure similar to a crawler crane, a rammer is positioned outside a frame, and a structural part is easily damaged due to the fact that the whole structure bears very large impact at the moment of lowering the rammer, so that the rammer of the dynamic compactor can only reach a medium-small energy level. In order to further improve the tamping energy level, the dynamic compaction machine of the type needs to be additionally provided with a portal structure in front of the rammer, but the mobility and the working efficiency of the whole machine are greatly reduced. In order to solve the problems, part of manufacturers improve the structure of the dynamic compactor, mainly two supported crawler belts are lengthened, and even a supporting leg oil cylinder is added for supporting, so that a rammer is just positioned in the supporting structure of the whole vehicle, and the impact of the rammer falling moment is partially eliminated, but the crawler belts slide greatly when the dynamic compactor is steered, and the steering is difficult.

The dynamic compactor is mainly divided into a unhooking machine and a non-unhooking machine. For a non-unhooking dynamic compactor, a high-speed winch is generally adopted in the industry to lift and lower a rammer; when the rammer falls down, the winch is driven to rotate rapidly to release the rope, and after the rammer falls in place, the winch is braked. However, the winch has larger inertia, the rotating speed of the winch is very high in the process of lowering the rammer, the rope disorder of the steel wire rope is easily caused during braking, and the problem of the easy rope disorder is solved by adopting the winch with a high-reliability clutch and high braking performance in foreign equipment, but the overall cost is higher.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a non-that hydro-cylinder promoted colludes formula dynamic compactor, it has stability height, efficient, with low costs, be difficult to advantages such as indiscriminate rope.

A non-unhooking dynamic compactor with an oil cylinder lifting function comprises a chassis, side supports, a top beam, a lifting mechanism and a rammer, wherein a channel is arranged on the chassis and is used for the rammer to pass through when the rammer is lifted between the ground and the top beam, the channel is arranged in a rectangular range with the chassis as the center and the length and the width being 2/3L 1 and 2/3L 2 respectively on the chassis, L1 and L2 are respectively the length and the width of the chassis, a plurality of side supports are arranged on the periphery of the channel on the chassis in a surrounding mode, the top beam is arranged at the top of the side supports, the lifting mechanism is arranged on the top beam and the side supports/chassis, the lifting mechanism is connected with the rammer and used for driving the rammer to lift.

Preferably, the lifting mechanism comprises a lifting oil cylinder, a movable pulley, a fixed pulley and a steel wire rope, the fixed pulley is fixed on the top beam, the lifting oil cylinder is installed on the chassis or the side support, a piston rod of the lifting oil cylinder is fixedly connected with the movable pulley, one end of the steel wire rope is connected with the rammer by bypassing the fixed pulley, and the other end of the steel wire rope is connected with the top beam by bypassing the movable pulley. By adopting the structure, the lifting of the rammer is realized through the matching of the fixed pulley, the movable pulley and the lifting oil cylinder, and the lifting structure has the advantages of good lifting stability, good braking effect and simple structure.

Preferably, the steel wire rope winding machine further comprises a guide wheel, the guide wheel is mounted on the side support, and one end of the steel wire rope winds around the movable pulley and then fixedly connected with the top beam after winding around the guide wheel. By adopting the structure, the steel wire rope rounds the movable pulley and then rounds the guide wheel, so that the connecting position of the steel wire rope and the top beam is closer to the center of the top beam, the size of the cross beam can be further reduced, and the size and the weight of the whole machine are reduced.

Preferably, the two groups of lifting mechanisms and/or guide wheels are arranged symmetrically, and one ends of the two steel wire ropes, which are wound around the fixed pulley, are fixedly connected with the rammer. By adopting the structure, the two groups of lifting mechanisms which are symmetrically arranged drive the rammer to lift, and the rammer can be driven to lift and ramme soil more stably.

Preferably, the lifting oil cylinder comprises a piston rod, a piston and a cylinder barrel, and the piston fixedly connected with the piston rod is arranged in the cylinder barrel; the piston divides the cylinder barrel into a rod cavity and a rodless cavity, and the hydraulic control system is connected with the rod cavity and the rodless cavity; the detection device is arranged on the rammer and is connected with the hydraulic control system. By adopting the structure, the rammer can be stably lifted and braked by the control of the lifting oil cylinder and the hydraulic control system.

Preferably, the chassis comprises a frame and a running mechanism, the running mechanism is a crawler belt wheel set, and the four crawler belt wheel sets are symmetrically arranged on the front side and the rear side of the frame in pairs; the crawler wheel group at least comprises one crawler wheel. By adopting the structure, the four crawler wheel sets can more stably drive the whole machine to move on the construction site.

Preferably, the track wheel set comprises a track wheel; the crawler wheel is fixedly connected with the frame through the crawler wheel bracket. By adopting the structure, the steering of the whole machine is realized by controlling the speed of the crawler wheels on the left side and the right side, and the structure is simple.

Preferably, the track wheel set comprises a track wheel; the crawler wheels are hinged with the frame; the four-bar mechanism is arranged on the front side and the rear side of the frame and is arranged between the two crawler wheels, and the short bars on the two sides of the four-bar mechanism are respectively fixedly connected with the support devices of the crawler wheels; a piston rod of the steering oil cylinder is hinged with a short rod of the four-bar linkage mechanism, and a cylinder barrel of the steering oil cylinder is hinged with the frame. By adopting the structure, the stable advancing and steering of the whole machine are realized by arranging the four-bar mechanism and the four crawler wheels, and the advancing and steering stability is good.

Preferably, the crawler wheel group comprises two crawler wheels, and two crawlers are fixedly connected in one crawler wheel group through a connecting shaft; the crawler wheel group is hinged with the frame; the four-bar mechanism is respectively arranged on the front side and the rear side of the frame, a connecting shaft of the crawler wheel set is fixedly connected with a short rod of the four-bar mechanism, a piston rod of the steering oil cylinder is hinged with the short rod of the four-bar mechanism, and a cylinder barrel of the steering oil cylinder is hinged with the frame.

Preferably, the crawler wheel set comprises two crawler wheels, and the two crawler wheels are fixedly connected through a connecting shaft in one crawler wheel set; the crawler wheel group is hinged with the frame; and all install relative angle detection device on every track wheelset, relative angle detection device is used for the angle of four track wheelsets of real-time detection, and hydraulic control system and relative angle detection device, track wheelset are connected, and hydraulic control system adjusts the angle of track wheelset after being used for receiving relative angle detection device's signal.

The utility model has the advantages that:

1. the utility model discloses a center department on chassis sets up the passageway, and this passageway can be convenient for the ram to pass through at the lift during operation, and consequently the during operation ram is in the central point of complete machine all the time, does not have the violent shake of traditional dynamic compaction machine when the ram whereabouts, has reduced vibration, the shake of rammer during operation, has increased the stability of complete machine during operation, is particularly useful for big energy level or super large energy level dynamic compaction machine.

2. The utility model discloses a lifting cylinder is selected among elevating system, drives the rise or the decline of ram through lifting cylinder, and behind the ram whereabouts to ground, lifting cylinder utilizes quick braking under the combined action of hydrostatic effort, gravity and frictional force, and braking reliability is good, generate heat for a short time, has and leans on brake drum friction braking reliability better, gives out heat advantages such as littleer, and wire rope's free extension is littleer than traditional hoist and lifting mechanism.

3. The utility model discloses a running gear adopts the track wheelset, sets up four track wheelsets through the side around the frame, consequently can drive the complete machine more steadily and move in the building site, also is convenient for ram native in the not good place of construction conditions.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

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

Fig. 3 is a schematic structural diagram of a third embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention.

Fig. 5 is a schematic top view of an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a chassis according to a first embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a chassis according to a second embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a chassis according to a third embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a chassis according to a fourth embodiment of the present invention.

The device comprises a rammer 1, a fixed pulley 2, a top beam 3, a steel wire rope 4, a movable pulley 5, a side support 6, a lifting oil cylinder 7, a chassis 8, a frame 81, a crawler wheel 82, a four-bar linkage 83, a steering oil cylinder 84 and a crawler wheel group 85.

Detailed Description

The present invention will be further specifically described with reference to the accompanying drawings.

The first embodiment is as follows:

a non-unhooking dynamic compactor with lifted oil cylinder includes chassis, side support, top beam, rammer and elevating mechanism. The four side supports are arranged on the chassis, and the top beams are arranged at the tops of the four side supports. The rammer is arranged among the four side supports and is lifted through the lifting mechanism so as to descend and ascend. The lifting mechanism is disposed on the top beam and the side support/chassis.

The chassis comprises a frame and a running mechanism, the running mechanism is used for driving the frame, and the running mechanism is arranged below the frame. The center of the chassis is provided with a channel so that the rammer can pass through when falling to the ground in work.

The channel is used for enabling the rammer to pass through when the rammer descends to the ground during working, specifically, the channel is arranged in a rectangular range which takes the chassis as the center and is 2/3L 1 and 2/3L 2 in length and width, wherein L1 and L2 are the length and width of the chassis, the four side supports are arranged at four top corners of the frame respectively, the side supports are fixedly connected with the frame, the top beam is arranged at the tops of the four side supports, and the top beam is fixedly connected with the four side supports.

The lifting mechanism comprises a lifting oil cylinder, a fixed pulley, a movable pulley and a steel wire rope. The lifting oil cylinder can be arranged on the frame, and the piston rod is vertically upward. The lifting oil cylinder can also be obliquely arranged on the frame, and the piston rod is obliquely upward. The fixed pulley is fixed in the middle of the top beam and is aligned with the channel on the frame. The movable pulley is fixedly connected with a piston rod of the lifting oil cylinder. One end of the steel wire rope is fixedly connected with the rammer after passing around the fixed pulley, and the other end of the steel wire rope is fixedly connected with the top beam after passing around the movable pulley. The piston rod of the lifting oil cylinder is lifted or lowered to drive the movable pulley to ascend or descend, so that the rammer is driven to descend or ascend.

In this embodiment, the traveling mechanism is a track roller set, the track roller set is four, and one track roller set includes one track wheel. That is, the running mechanism is composed of four crawler wheels, and the four crawler wheels are respectively and symmetrically arranged on the front side and the rear side of the frame. The crawler wheel is fixedly connected with the frame through the crawler wheel bracket. The axes of the crawler wheels and the frame always keep a fixed angle, and when the rotating speeds of the left crawler wheel and the right crawler wheel are different, the whole vehicle steering is realized.

The lifting oil cylinder comprises a cylinder barrel, a piston and a piston rod, the piston is arranged in the cylinder barrel and fixedly connected with the piston rod, the piston divides the inside of the cylinder barrel into a rod cavity and a rodless cavity, and the space of the rod cavity and the rodless cavity dynamically changes along with the movement of the piston. The hydraulic control system is respectively connected with the rod cavity and the rodless cavity of the lifting oil cylinder, and the rod cavity and the rodless cavity of the lifting oil cylinder can be communicated through the hydraulic control system. The hydraulic control system is also connected with the oil tank. The hydraulic control system controls the flowing direction of the oil way, and the volumes of the rod cavity and the rodless cavity are changed, so that the piston rod is pushed to move up and down, the lifting mechanism and the rammer are driven to move up and down, and the rammer is controlled to brake.

In more detail, when the rammer is lifted, the hydraulic control system controls the oil inlet of the rod cavity of the lifting oil cylinder, the piston rod retracts towards the bottom of the cylinder barrel along with the increase of oil in the rod cavity, the movable pulley is pulled to move downwards, and the rammer is pulled to lift upwards after the steel wire rope bypasses the fixed pulley.

When the rammer is lifted to a set height, the hydraulic control system controls the rod cavity and the rodless cavity of the lifting oil cylinder to be communicated, and the hydraulic control system is simultaneously communicated with the oil tank. At the moment, the ram makes free-falling motion under the action of gravity, the piston rod of the lifting oil cylinder is pulled out at an accelerated speed, and oil is supplemented to a rodless cavity of the lifting oil cylinder through an oil tank.

When the detection device detects that the rammer is in contact with the ground, the hydraulic control system controls the high-pressure overflow of the rod cavity of the lifting oil cylinder to provide hydrostatic braking force for the lifting oil cylinder, and the rammer is quickly braked under the combined action of gravity and friction force.

Example two:

in this embodiment, only the lifting mechanism, the traveling mechanism and the embodiment are different, and the lifting mechanism and the traveling mechanism are further optimized in the embodiment one, and the rest are the same as the embodiment one, and the description of the same parts is omitted in this embodiment.

In this embodiment, the two sets of lifting mechanisms in the first embodiment are symmetrically disposed. One end of a steel wire rope in the lifting mechanism, which bypasses the fixed pulley, is fixedly connected with the rammer, and the two groups of lifting mechanisms jointly control the lifting work of the rammer to be more stable and efficient.

In this embodiment, the track wheel set is the same as in the first embodiment, and the running mechanism further comprises a four-bar linkage. Four-bar linkages may be provided on both the front and rear sides of the frame. The four-bar mechanism is arranged between the two crawler wheels, and the short rods on the two sides of the four-bar mechanism are respectively and fixedly connected with the support devices of the crawler wheels. A piston rod of the steering oil cylinder is hinged with a short rod of the four-bar linkage mechanism, and a cylinder barrel of the steering oil cylinder is hinged with the frame. Under the action of the four-bar linkage mechanism, the axes of the left crawler wheel and the right crawler wheel are always kept parallel. When a piston rod of the steering oil cylinder extends or retracts, the crawler wheels are driven to rotate relative to the frame, and therefore the vehicle can turn. When one piston rod of the two steering oil cylinders is completely extended out and the other piston rod is completely retracted, the steering angle of the whole vehicle is minimum.

Example three:

in this embodiment, only the lifting mechanism, the traveling mechanism and the first embodiment are different, the lifting mechanism is further optimized in the first embodiment, the rest is the same as the first embodiment, and the description of the same parts is omitted.

In this embodiment, in addition to the first embodiment, the elevating mechanism is further provided with a guide wheel at an upper portion of the side bracket. One end of the steel wire rope is fixedly connected with the top beam by passing around the guide wheel after passing around the movable pulley. Through setting up the leading wheel, wire rope is being more close to the central point of top roof beam in the position of connecting fixed with the top roof beam after bypassing the leading wheel. The size of the top beam can be made smaller by providing the guide wheels.

In this embodiment, the running gear is a track roller set, and one track roller set includes two tracks. The number of the crawler belt wheel groups is four, and the crawler belt wheel groups are respectively arranged on the front side and the rear side of the frame in pairwise symmetry. The crawler wheel group is hinged with the frame and can rotate relative to the frame; when the left track and the right track of the track wheel set rotate at different speeds, the track wheel set rotates around the central shaft of the track wheel set relative to the frame. And a relative angle detecting device, such as a rotary encoder, is installed at each of the crawler wheel sets. The angles of the four crawler belt wheel sets are detected in real time by using the relative angle detection device, and the hydraulic control system is used for adjusting, so that the axes of the four crawler belt wheel sets are kept parallel. The axes of the four crawler wheel sets can be adjusted to be at any angle relative to the frame, and after the angle adjustment is completed, the crawler wheel sets drive the vehicle to walk towards the crawler direction, so that the vehicle can walk towards different directions. The relative angle detection device and the hydraulic control system are used for controlling the crawler wheel to realize direction adjustment, the structure and the principle are the same as those of a pump truck or a crane and the like which realize arm direction adjustment by using the relative angle detection device and the hydraulic control system, and detailed records are not expanded here.

Example four:

in this embodiment, only the lifting mechanism, the traveling mechanism and the third embodiment are different, and the lifting mechanism and the traveling mechanism are further optimized in the third embodiment, and the rest are the same as those in the third embodiment, and the description of the same parts is omitted in this embodiment.

In this embodiment, the lifting mechanisms and the guide wheels are two sets, and the two sets of lifting mechanisms and the guide wheels are symmetrically arranged. One end of a steel wire rope in the lifting mechanism, which bypasses the fixed pulley, is fixedly connected with the rammer, and the two groups of lifting mechanisms jointly control the lifting work of the rammer to be more stable and efficient.

In this embodiment, the running gear further comprises a four-bar linkage. In one crawler belt wheel set, the two crawler belts are fixedly connected through a connecting shaft, so that the axial directions of the two crawler belts are always kept parallel. The front side and the rear side of the frame are respectively provided with a four-bar linkage mechanism, and the four-bar linkage mechanisms are respectively connected with the crawler belt wheel sets on the left side and the right side. The connecting shaft of the crawler wheel set is fixedly connected with the short rod of the four-bar linkage mechanism, the piston rod of the steering oil cylinder is hinged with the short rod of the four-bar linkage mechanism, and the cylinder barrel of the steering oil cylinder is hinged with the frame. Under the action of the four-bar linkage mechanism, the axes of the left crawler belt wheel set and the right crawler belt wheel set are always kept parallel. When a piston rod of the steering oil cylinder extends or retracts, the crawler wheel set is controlled to rotate relative to the frame, and therefore the vehicle can turn. When one piston rod of the two steering oil cylinders is completely extended and the other piston rod of the two steering oil cylinders is completely retracted, the steering angle of the whole vehicle is the minimum.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. A non-unhooking dynamic compaction machine with an oil cylinder lifting function is characterized by comprising a chassis, side supports, a top beam, a lifting mechanism and a rammer, wherein a channel is arranged on the chassis and is used for the rammer to pass through when the rammer is lifted between the ground and the top beam, the channel is arranged in a rectangular range with the chassis as the center and the length and the width of 2/3L 1 and 2/3L 2 respectively on the chassis, L1 and L2 are respectively the length and the width of the chassis, a plurality of side supports are uniformly arranged on the periphery of the channel on the chassis in a surrounding mode, the top beam is arranged at the tops of the side supports, the lifting mechanism is arranged on the top beam and the side supports/chassis, and the lifting mechanism is connected with the rammer and used for driving the rammer to lift.

2. The non-unhooking dynamic compactor lifted by the oil cylinder according to claim 1, characterized in that: the lifting mechanism comprises a lifting oil cylinder, a movable pulley, a fixed pulley and a steel wire rope, the fixed pulley is fixed on the top beam, the lifting oil cylinder is installed on the chassis or the side support, a piston rod of the lifting oil cylinder is fixedly connected with the movable pulley, one end of the steel wire rope is connected with the rammer by bypassing the fixed pulley, and the other end of the steel wire rope is connected with the top beam by bypassing the movable pulley.

3. The non-unhooking dynamic compactor lifted by the oil cylinder according to claim 2, characterized in that: the steel wire rope winding device is characterized by further comprising a guide wheel, wherein the guide wheel is arranged on the side support, and one end of the steel wire rope winds around the movable pulley and then fixedly connected with the top beam.

4. The non-unhooking dynamic compaction machine with the lifted oil cylinder according to claim 2 or 3, characterized in that: the lifting mechanisms and/or the guide wheels are/is two groups, the two groups of lifting mechanisms and/or the two groups of guide wheels are symmetrically arranged, and one ends of the two steel wire ropes, which are wound around the fixed pulley, are fixedly connected with the rammer.

5. The non-unhooking dynamic compactor lifted by the oil cylinder according to claim 1, characterized in that: the chassis comprises a frame and a running mechanism, the running mechanism is a crawler belt wheel set, and the four crawler belt wheel sets are symmetrically arranged on the front side and the rear side of the frame in pairs; the crawler wheel group at least comprises one crawler wheel.

6. The non-unhooking dynamic compactor lifted by the oil cylinder according to claim 5, characterized in that: the crawler wheel group comprises a crawler wheel; the crawler wheel is fixedly connected with the frame through the crawler wheel bracket.

7. The non-unhooking dynamic compactor lifted by the oil cylinder according to claim 5, characterized in that: the crawler wheel group comprises a crawler wheel; the crawler wheels are hinged with the frame; the four-bar mechanism is arranged on the front side and the rear side of the frame and is arranged between the two crawler wheels, and the short bars on the two sides of the four-bar mechanism are respectively fixedly connected with the support devices of the crawler wheels; a piston rod of the steering oil cylinder is hinged with a short rod of the four-bar linkage mechanism, and a cylinder barrel of the steering oil cylinder is hinged with the frame.

8. The non-unhooking dynamic compactor lifted by the oil cylinder according to claim 5, characterized in that: the crawler belt wheel set comprises two crawler wheels, and the two crawler wheels are fixedly connected through a connecting shaft in one crawler belt wheel set; the crawler wheel group is hinged with the frame; the four-bar mechanism is respectively arranged on the front side and the rear side of the frame, a connecting shaft of the crawler wheel set is fixedly connected with a short rod of the four-bar mechanism, a piston rod of the steering oil cylinder is hinged with the short rod of the four-bar mechanism, and a cylinder barrel of the steering oil cylinder is hinged with the frame.

9. The non-unhooking dynamic compactor lifted by the oil cylinder according to claim 5, characterized in that: the crawler wheel set comprises two crawler wheels, and the two crawler wheels are fixedly connected through a connecting shaft in one crawler wheel set; the crawler wheel group is hinged with the frame; and all install relative angle detection device on every track wheelset, relative angle detection device is used for the angle of four track wheelsets of real-time detection, and hydraulic control system and relative angle detection device, track wheelset are connected, and hydraulic control system adjusts the angle of track wheelset after being used for receiving relative angle detection device's signal.