Steering and lifting system device of novel paver and novel paver

Abstract

The utility model belongs to the technical field of pavers, and particularly relates to a steering and lifting system device of a novel paver and the novel paver, an inner stand column and an outer stand column are both of a hollow structure, the inner stand column is installed in the outer stand column, and a lifting lead screw is installed in the inner stand column; a worm and gear is fixed on the inner stand column; the bottom of the inner stand column is fixed to the bottom face of the U-shaped yoke, the U-shaped yoke is clamped on the crawler belt, and the crawler belt motor is arranged on the crawler belt. The lifting lead screw penetrates through a lifting lead screw receding hole in the top of the inner stand column, and a flexible part is arranged on the lifting lead screw and installed at the lifting lead screw receding hole. The lifting lead screw is rotationally installed on the outer stand column, a lead screw installation hole is formed in the outer stand column, the lifting lead screw penetrates through the lead screw installation hole, the lifting lead screw is driven by a lead screw motor, and the lead screw motor is arranged at the top of the lifting lead screw. The lifting lead screw is arranged on the inner side of the inner stand column, the lifting and steering functions of the paver body are integrated, the overall size of the paver can be reduced, and the paver can better adapt to work in a narrow road environment.

Description

[Technical field]

[0001] The utility model belongs to the technical field of pavers, and in particular relates to a steering and lifting system device of a novel pavers and a novel pavers. [Background technology]

[0002] The paver body lifting system refers to the lifting system used to lift the paver body during the construction process to facilitate operations at different heights. The existing related lifting systems are mainly composed of lifting frames, lifting cylinders, hydraulic pump stations, solenoid valves, etc.

[0003] The steering device of the paver in the prior art is usually driven by a hydraulic cylinder, and a sensor is used to detect the steering angle or piston position of the hydraulic cylinder to obtain the real-time position of the track. The control cabinet controls the operation of the steering device based on this information. However, the structure of this steering device is complex, which is not conducive to maintenance and repair. Maintenance personnel need to spend more time and energy on inspection and maintenance work, and the lateral force of the steering hydraulic cylinder will cause the steering device to deform, thereby affecting the steering accuracy. Secondly, the steering device itself has a complex structure and a large size, which causes the size of the entire paver equipment to increase, and it cannot travel on narrow roads to complete road paving work. [Contents of the utility model]

[0004] The utility model provides a novel steering and lifting system device of a paver to solve the above problems. The utility model also provides a novel paver to solve the above technical problems.

[0005] The utility model provides a new steering and lifting system device for a paver, and the technical solution is:

[0006] The steering and lifting system device of the new type of paver includes an inner column and an outer column, both of which are hollow structures. The inner column is installed in the outer column, and a lifting screw is installed in the inner column; a worm wheel is fixed on the inner column, the worm wheel is meshed with a worm, and the worm is driven by a steering motor; the bottom of the inner column is fixed to the bottom surface of the U-shaped yoke, and the U-shaped yoke is clamped on the crawler of the paver, and the crawler is driven by a crawler motor, and the crawler motor is set on the crawler; a lifting screw avoidance hole is provided at the top of the inner column, and the lifting screw passes through the lifting screw avoidance hole, and a spirit is provided on the lifting screw, which is installed at the lifting screw avoidance hole, the bottom of the spirit passes through the lifting screw avoidance hole, and the head is clamped on the top surface of the inner column; the lifting screw is rotatably installed on the outer column, and a screw mounting hole is provided on the outer column, and the lifting screw passes through the screw mounting hole, and the lifting screw is driven by a screw motor, and the screw motor is set on the top of the lifting screw.

[0007] The beneficial effects are: first, the worm gear is used to drive the inner column to rotate, and the inner column is connected to the crawler through a U-shaped yoke, thereby realizing the steering control of the paver; second, the lifting screw is set on the inner side of the inner column, integrating the lifting and steering functions of the paver body, which helps to reduce the overall volume of the paver and better adapt to the work in a narrow road environment. Third, the lifting screw is used in conjunction with the flexible lifting of the body, and the sliding lifting mode in the prior art is not used, which reduces the friction between the parts during the lifting process and has a buffering effect, effectively ensuring the flexibility and accuracy of the paver body lifting while avoiding the generation of noise. Fourth, the inner column and the lifting screw inside the inner column can be controlled and rotated separately, that is, the steering action and the body lifting action will not interfere with each other, and the body can be lifted and lowered while the paver is turning.

[0008] Further, the screw motor is connected to the top of the lifting screw through a speed reducer.

[0009] The beneficial effects are: the speed of a high-speed rotating power source can be reduced to the required speed through the reducer to meet the working requirements of the mechanical equipment; under the same power, the output torque can be increased through the reducer to meet the larger load requirements of the mechanical equipment; at the same time, the reducer can also convert the transmission direction between the input shaft and the output shaft to meet different working requirements; in addition, the reducer can also realize split transmission, separating the input shaft and the output shaft, thereby achieving more flexible installation and use.

[0010] Furthermore, the lifting screw includes a screw section and a mounting portion, the diameter of the mounting portion is smaller than the screw section, the mounting portion is at the top of the screw section, the top of the mounting portion passes through the top surface of the outer column and is connected to the reducer via a second connecting key, and the second connecting key is installed in a slot on the mounting portion.

[0011] The beneficial effect is that the lifting screw and the reducer are installed through the second connecting key, the structure is simple and the connection is reliable.

[0012] Furthermore, a speed reducer transition frame is fixed on the top of the outer column, the speed reducer is installed on the top of the speed reducer transition frame, and a screw motor cover is arranged outside the screw motor.

[0013] The beneficial effects are: setting up the reducer transition frame avoids directly setting the reducer on the top of the outer column, and the geometric shape of the outer column is simple, which is easy to process; in addition, setting up the reducer transition frame can facilitate the installation and maintenance of components such as bearing stops, bearings, and bearing thrust covers.

[0014] The vibration of the reducer during operation will not directly reach the outer column and the inner column. In addition, the setting of the screw motor cover can effectively prevent dust from entering the motor and avoid damage to the motor.

[0015] Furthermore, the worm wheel is installed in a worm gear box, a worm gear bearing is provided at the bottom of the worm wheel, the worm gear box is a cylindrical box body and is adapted to the shape of the worm wheel; the worm is installed in the worm gear box, the worm gear box is a cylindrical box body and is adapted to the shape of the worm.

[0016] The beneficial effect is that the worm wheel and the worm are arranged in the corresponding worm wheel box and the worm box, so as to prevent dust from entering and interfering with the normal working of the meshing surfaces of the worm wheel and the worm, and avoid damage to the worm wheel and the worm.

[0017] Furthermore, the worm wheel is connected to the inner column via a first connecting key, a long groove is provided on the side surface of the inner column, the long groove runs through the top and bottom surfaces of the inner column, and a key groove is provided on the wall of the shaft hole of the worm wheel.

[0018] The beneficial effect is that the inner column and the worm wheel will only slide relative to each other along the axial direction, and will not rotate relative to each other.

[0019] Furthermore, the lifting screw is rotatably installed on the outer column through a screw bearing. The screw bearing is arranged at the screw mounting hole. A U-shaped bearing block is provided on the outer periphery of the screw bearing. The screw bearing is mounted on the mounting part of the screw. The bottom surface of the bearing block is located at the top of the screw section. A bearing thrust cover is also provided on the top of the screw bearing.

[0020] The beneficial effect is that the screw bearing is provided to make the lifting screw rotate more smoothly. In addition, the bearing block is provided to prevent unnecessary axial movement of the bearing and reduce energy consumption.

[0021] Furthermore, at least seven rows of steel balls are contained in the living spirit.

[0022] The beneficial effect is: at least seven rows of steel balls are arranged to increase the bearing capacity of the movable body, ensure the bearing capacity of the top of the lifting screw, and avoid damage to the lifting screw and the movable body.

[0023] Furthermore, two screw bearings are provided, and the two screw bearings are installed in one bearing stopper.

[0024] The beneficial effect is that the two screw bearings are arranged in series to avoid damage to the screw bearings.

[0025] The utility model provides a new type of paver, and the technical solution is:

[0026] The novel paver includes the above-mentioned steering and lifting system device of the novel paver, and has all the beneficial effects of the steering and lifting system device of the novel paver.

Brief Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the structure of the steering and lifting device of the novel paver of Example 1 provided by the utility model;

[0028] Figure 2 This is a schematic diagram of the connection between the worm gear and the inner column of Example 1 provided by the utility model;

[0029] Figure 3 It is a cross-sectional view of the steering and lifting device of the novel paver provided in Example 1 of the utility model;

[0030] Figure 4 It is a partial enlarged view of the worm gear of Example 1 provided by the utility model;

[0031] Figure 5 It is a partial enlarged view of the top of the lifting screw of Example 1 provided by the utility model;

[0032] 1. Outer column; 2. Inner column; 21. Long groove; 22. First connecting key; 3. Crawler track; 31. Crawler track motor; 4. U-shaped yoke; 5. Worm; 51. Worm box; 511. Shaft end cap; 52. Steering motor; 6. Worm gear; 61. Worm gear box; 62. Worm gear bearing; 7. Screw motor; 71. Screw motor cover; 8. Lifting screw; 81. Screw bearing; 82. Bearing thrust cover; 83. Bearing stop; 9. Reducer; 91. Reducer transition frame. [Specific implementation method]

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings.

[0034] Specific embodiment 1 of a new steering and lifting device for a paver provided by the utility model:

[0035] The present embodiment provides a novel steering and lifting device for a paving machine, comprising an inner column 2 and an outer column 1. The inner column 2 is installed inside the outer column 1, and a lifting screw 8 is installed inside the inner column 2.

[0036] A worm wheel 6 is fixed on the inner column 2, and the inner column 2 is driven to rotate by the worm wheel 6. The worm wheel 6 is connected to the inner column 2 through a first connecting key 22. A long groove 21 is provided on the side surface of the inner column 2, and the long groove 21 runs through the top and bottom surfaces of the inner column 2. A keyway is provided on the wall of the axial hole of the worm wheel 6. The first connecting key 22 is provided to ensure the synchronous rotation of the worm wheel 6 and the inner column 2. The worm wheel 6 is installed in a worm gear box 61. A worm gear bearing 62 is also provided at the bottom of the worm wheel 6 to prevent wear of the worm wheel 6 and the worm gear box 61. The worm gear box 61 is a cylindrical box body and is adapted to the shape of the worm wheel 6. The worm wheel 6 is meshed with the worm 5, and the worm 5 is driven by a steering motor 52. In this embodiment, the worm 5 is installed in a worm box 51. The worm box 51 is a cylindrical box body and is adapted to the shape of the worm 5. An axial end cap 511 is provided at the end of the worm box 51.

[0037] The bottom of the inner column 2 is fixed to the bottom surface of the U-shaped yoke 4, and the U-shaped yoke 4 is clamped on the crawler 3 of the paver. Both sides of the U-shaped yoke 4 are provided with mounting holes, and the mounting holes on the side are symmetrically located. Bolts are provided in the mounting holes, and the U-shaped yoke 4 is stably mounted on the crawler 3 of the paver through the bolts. The crawler 3 is driven by a crawler motor 31, and the crawler motor 31 is arranged on the crawler 3. In this embodiment, the crawler motor 31 is arranged at the rear position of the side of the crawler 3.

[0038] A lifting screw avoidance hole is provided on the top of the inner column 2, and the lifting screw 8 passes through the lifting screw avoidance hole. A live spirit is provided on the lifting screw 8, and the live spirit is installed at the lifting screw avoidance hole. The bottom of the live spirit passes through the lifting screw avoidance hole, and the head is clamped on the top surface of the inner column 2. At least two rows of steel balls are installed in the live spirit. In this embodiment, ten rows of steel balls are arranged to increase the bearing capacity of the live spirit, ensure the bearing capacity of the top of the lifting screw 8, and avoid the lifting screw 8 and the live spirit from being damaged. In other embodiments, the steel balls in the live spirit can also be arranged in three rows, four rows, five rows, or more rows. The specific number of arrangements depends on the actual size and weight of the paver.

[0039] The lifting screw 8 is rotatably mounted on the outer column 1. The outer column 1 is provided with a screw mounting hole. The lifting screw 8 passes through the screw mounting hole. The lifting screw 8 is driven by the screw motor 7. The screw motor 7 is connected to the top of the lifting screw 8 through the reducer 9. In this embodiment, the lifting screw 8 includes a screw segment and a mounting portion. The diameter of the mounting portion is smaller than that of the screw segment. The mounting portion is at the top of the screw segment. The top end of the mounting portion passes through the top surface of the outer column 1 and is connected to the reducer 9 through the second connecting key. The second connecting key is installed in the card slot on the mounting portion.

[0040] In this embodiment, the lifting screw 8 is installed on the outer column 1 through a screw bearing 81. The screw bearing 81 is set at the screw mounting hole. A U-shaped bearing block 83 is provided on the outer periphery of the screw bearing 81. The screw bearing 81 is sleeved on the mounting portion of the screw. The bottom surface of the bearing block 83 is just located at the top of the screw section. A bearing thrust cover 82 is also provided on the top of the screw bearing 81. In this embodiment, two bearings are provided, and the two bearings are installed in one bearing block 83. A reducer transition frame 91 is fixed on the top of the outer column 1. The reducer transition frame 91 is fixedly installed on the top of the outer column 1 by bolts. The bearing block flange of the bearing block is clamped on the reducer transition frame 91. The reducer 9 is installed on the top of the reducer transition frame 91 through the reducer flange. The reducer 9 is connected to the screw motor 7. The screw motor 7 is provided with a screw motor cover 71. In this embodiment, the bearing block flange size is larger than the top reducer mounting flange hole size. The speed reducer can reduce the speed of the high-speed rotating power source to the required speed to meet the working requirements of the mechanical equipment. In this embodiment, the power source is a servo motor. In other embodiments, other devices can also be used to drive it.

[0041] Specific embodiment 2 of a new steering and lifting device for a paver provided by the utility model:

[0042] The difference between this embodiment and embodiment 1 is that the lifting screw includes a screw section and a mounting portion, and the diameter of the mounting portion is consistent with the screw section. In other embodiments, the diameter of the mounting portion of the lifting screw is larger than the screw section, and the strength of the mounting portion is improved by increasing the size of the connecting portion of the mounting portion.

[0043] Specific embodiment 3 of a new steering and lifting device for a paver provided by the utility model:

[0044] The only difference between this embodiment and Embodiment 1 is that a separate screw motor cover is not provided.

Claims

1. A new steering and lifting system device for a paver, characterized in that: The invention comprises an inner column (2) and an outer column (1), wherein the inner column (2) and the outer column (1) are both hollow structures, the inner column (2) is installed in the outer column (1), and a lifting screw (8) is installed in the inner column (2); a worm wheel (6) is fixed on the inner column (2), the worm wheel (6) is meshed with a worm (5), and the worm (5) is driven by a steering motor (52); the bottom of the inner column (2) is fixed on the bottom surface of a U-shaped yoke (4), and the U-shaped yoke (4) is clamped on the crawler (3) of the paving machine, and the crawler (3) is driven by a crawler motor (31), and the crawler motor (31) is arranged on the crawler The inner column (2) is provided with a lifting screw avoidance hole at the top, and the lifting screw (8) passes through the lifting screw avoidance hole. The lifting screw (8) is provided with a flexible pin, and the flexible pin is installed at the lifting screw avoidance hole. The bottom of the flexible pin passes through the lifting screw avoidance hole, and the head is clamped on the top surface of the inner column (2); the lifting screw (8) is rotatably installed on the outer column (1), and the outer column (1) is provided with a screw mounting hole. The lifting screw (8) passes through the screw mounting hole. The lifting screw (8) is driven by a screw motor (7), and the screw motor (7) is arranged on the top of the lifting screw (8).

2. The steering and lifting system device of the new paver according to claim 1 is characterized in that: The screw motor (7) is connected to the top of the lifting screw (8) via a reducer (9).

3. The steering and lifting system device of the new paver according to claim 2 is characterized in that: The lifting screw (8) includes a screw segment and a mounting portion, wherein the mounting portion has a diameter smaller than that of the screw segment, and the mounting portion is located at the top of the screw segment. The top end of the mounting portion passes through the top surface of the outer column (1) and is connected to the reducer (9) via a second connecting key, and the second connecting key is installed in a slot on the mounting portion.

4. The steering and lifting system device of the new paver according to claim 3 is characterized in that A speed reducer transition frame (91) is fixed on the top of the outer column (1), the speed reducer (9) is installed on the top of the speed reducer transition frame (91), and a speed reducer motor cover (71) is provided outside the screw motor (7).

5. The steering and lifting system device of the new paver according to claim 1 is characterized in that: The worm wheel (6) is installed in a worm wheel box (61), a worm wheel bearing (62) is provided at the bottom of the worm wheel (6), the worm wheel box (61) is a cylindrical box body and is adapted to the shape of the worm wheel (6); the worm (5) is installed in a worm box (51), the worm box (51) is a cylindrical box body and is adapted to the shape of the worm (5).

6. The steering and lifting system device of the new paver according to claim 1 is characterized in that: The worm wheel (6) is connected to the inner column (2) via a first connecting key (22); a long groove (21) is provided on the side surface of the inner column (2); the long groove (21) passes through the top and bottom surfaces of the inner column (2); and a key groove is provided on the wall of the shaft hole of the worm wheel (6).

7. The steering and lifting system device of the new paver according to claim 3 is characterized in that: The lifting screw (8) is rotatably mounted on the outer column (1) through a screw bearing (81); the screw bearing (81) is arranged at the screw mounting hole; a U-shaped bearing stop (83) is provided on the outer periphery of the screw bearing (81); the screw bearing (81) is mounted on the mounting portion; the bottom surface of the bearing stop (83) is located exactly at the top of the screw section; and a bearing thrust cover (82) is also provided on the top of the screw bearing (81).

8. The steering and lifting system device of the new paver according to claim 1 is characterized in that: The living spirit contains at least seven rows of steel balls.

9. The steering and lifting system device of the new paver according to claim 7 is characterized in that: Two screw bearings (81) are provided, and the two screw bearings (81) are installed in one bearing stopper (83).

10. A new type of paver, characterized in that: The novel paver comprises the steering and lifting system device of the novel paver as described in any one of claims 1-9.

Images