A machine body height adjustment device and a paving machine

Abstract

The present invention discloses a fuselage height adjustment device and a paving machine, comprising a first driving member, a slider, a slider seat, a second driving member, a limiting member, an articulated seat, an articulated shaft, a sliding rod, and a mounting seat. The sliding rod seat is fixedly arranged on the fuselage, a sliding groove for sliding the slider is provided in the middle of the sliding rod seat, a plurality of limiting holes are provided on the side of the sliding rod seat, and a matching hole is provided on the side of the sliding rod; the bottom end of the sliding rod is embedded in the sliding groove, and the top end of the sliding rod is fixed on the running device; one end of the first driving member is fixed on the side of the fuselage, and the other end is connected to the middle of the sliding rod; one end of the second driving member is connected to the fuselage, and the other end is connected to the limiting member, and the second driving member drives the limiting member to pass through the limiting hole and the matching hole in sequence; the articulated seat is fixed to the front end of the running device, and the mounting seat is fixed to the fuselage, and a groove for the sliding rod to be embedded is provided inside the mounting seat, one end of the sliding rod is articulated with the articulated seat through the articulated shaft, and the other end is slidably arranged in the groove. The paving machine of the present invention has an adjustable fuselage height and is more versatile.

Description

Technical Field

[0001] The invention relates to a machine body height adjustment device and a paver, belonging to the technical field of road construction engineering machinery. Background Art

[0002] In recent years, with the continuous development of road construction, pavers have gradually developed in the direction of large width, large thickness, and multi-function. Since the existing discharge port is low when paving large thickness, the material distribution effect is poor, which in turn affects the road surface forming quality. Therefore, a paver suitable for paving conditions of various thicknesses is urgently needed. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art that the height of the paver body cannot be adjusted and the discharging port is low, resulting in poor material distribution effect, and to provide a body height adjustment device and a paver. The technical solution is as follows:

[0004] A fuselage height adjustment device comprises a first driving member, a slider, a slider seat, a second driving member, a limit member, a hinge seat, a hinge shaft, a sliding rod, and a mounting seat.

[0005] The slider seat is fixedly arranged on the machine body, a slide groove for the slider to slide is arranged in the middle of the slider seat, a plurality of limit holes are arranged on the side of the slider seat, and a matching hole is arranged on the side of the slider;

[0006] The bottom end of the slider is embedded in the slide groove, and the top end of the slider is fixed on the walking device;

[0007] One end of the first driving member is fixed to the side of the fuselage, and the other end is connected to the middle of the slider;

[0008] One end of the second driving member is connected to the body, and the other end of the second driving member is connected to the limiting member, and the second driving member drives the limiting member to pass through the limiting hole and the matching hole in sequence;

[0009] The articulated seat is fixed on the front end of the walking device, and the mounting seat is fixed on the fuselage.

[0010] A groove for embedding the sliding rod is arranged inside the mounting seat. One end of the sliding rod is hinged to the hinge seat through a hinge shaft, and the other end of the sliding rod is slidably arranged in the groove.

[0011] A paving machine comprises the aforementioned fuselage height adjustment device and a material receiving device, a fuselage, a ceiling assembly, a material feeding and distributing device, a leveling device and a screed plate which are arranged on the paving machine in sequence from the front end to the rear end, wherein the traveling device is located at the bottom of the fuselage, one side of the leveling device is fixedly arranged on the side of the traveling device, and the other side is connected to the screed plate; the material feeding and distributing device, the ceiling assembly and the material receiving device are all arranged above the fuselage; and the fuselage height adjustment device is arranged between the fuselage and the traveling device.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The height of the paver body of the present invention is adjustable, especially at the paver discharge port, where there is a large adjustment range, and can adapt to paving conditions of different thicknesses, especially suitable for large thickness paving conditions, which solves the problem of body height adjustment when paving various thicknesses, has stronger versatility and a wider range of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the whole structure of the paver with a machine body height adjustment device of the present invention (right side);

[0015] Figure 2 It is a schematic diagram of the left side of a paver of the machine body height adjustment device of the present invention;

[0016] Figure 3 It is a structural schematic diagram of the fuselage height adjustment device of the present invention being located at the rear end of the paver (when the fuselage is in a high position);

[0017] Figure 4 It is a structural schematic diagram of the fuselage height adjustment device of the present invention being located at the rear end of the paver (when the fuselage is in a low position);

[0018] Figure 5 It is a structural schematic diagram of the fuselage height adjustment device of the present invention being located at the front end of the paver;

[0019] In the figure: 1-receiving device, 2-fuselage, 3-ceiling assembly, 4-ironing plate, 5-feeding and distributing device, 6-leveling device, 7-traveling device, 8-fuselage height adjustment device, 81-slider, 82-slider seat, 83-limiting member, 84, second driving member, 85-first driving member, 86-articulated seat, 87-articulated shaft, 88-sliding rod, 89-blocking block, 810-fixing pin, 811-mounting seat. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0021] Example 1

[0022] like Figure 1~Figure 5 As shown, a fuselage height adjustment device 8 includes a first driving member 85, a slider 81, a slider seat 82, a second driving member 84, a limit member 83, an articulated seat 86, an articulated shaft 87, a sliding rod 88, and a mounting seat 811.

[0023] The slider seat 82 is fixedly arranged on the fuselage 2, a slide groove for the slider 81 to slide is provided in the middle of the slider seat 82, two limiting holes are provided on the side of the slider seat 82, and a matching hole is provided on the side of the slider 81; in this embodiment, the limiting hole is provided on the side of the slider seat 82 close to the limiting member 83. The slider 81 and the slider seat 82 form a sliding pair.

[0024] The bottom end of the slider 81 is embedded in the slide groove, and the top end of the slider 81 is fixed on the walking device 7;

[0025] One end of the first driving member 85 is fixed to the side of the body 2 , and the other end is connected to the middle of the slider 81 ; specifically in this embodiment, the two ends of the first driving member 85 are hinged to the body 2 and the slider 81 respectively.

[0026] One end of the second driving member 84 is connected to the body 2, and the other end of the second driving member 84 is fixedly connected to the limiting member 83. The second driving member 84 drives the limiting member 83 to pass through the limiting hole and the matching hole in sequence.

[0027] The hinge seat 86 is fixed to the front end of the running device 7, and the mounting seat 811 is fixed to the fuselage 2.

[0028] The mounting seat 811 has a groove for the sliding rod 88 to be embedded therein. One end of the sliding rod 88 is hinged to the hinge seat 86 through a hinge shaft 87. The other end of the sliding rod 88 is slidably disposed in the groove to adjust the position of the body 2 and the running device 7 in the X direction. The sliding rod 88 and the body 2 form a sliding pair. The sliding rod 88 rotates around the Y axis of the hinge seat 86.

[0029] Specifically, one end of the sliding rod 88 is hinged to the hinge seat 86, and the other end is slidably set in the groove. It can be replaced by a fixed sliding bearing on the fuselage 2 or a sliding track, and the sliding rod 88 can move slightly inside it. For example, a joint bearing can be used as an equivalent replacement (the inner ring of the joint bearing can rotate at a small angle relative to the outer ring). Specifically, one end of the sliding rod is directly fixed on the walking device, and the other end is inserted into the joint bearing. The outer ring of the joint bearing is fixed on the mounting seat. Similarly, two degrees of freedom can be obtained, namely, a rotation in the Y-axis direction and a movement in the X-axis direction. When the fuselage rotates, the sliding rod rotates around the hinge axis, and at the same time, it slides along the X-axis direction of the circular slide groove relative to the fuselage. Since the fuselage is rotating, the sliding direction is constantly changing. It can also slide back and forth in the fuselage 2 to compensate for the slight movement of the fuselage 2 in the front and rear directions when the height is adjusted.

[0030] Specifically, in this embodiment, the limiting member 83 is a limiting pin, and there are two groups of limiting pins, and the two groups of limiting pins are arranged in parallel. One of the preferred embodiments is that the axial distance between the two limiting pins is equal to the distance between the two limiting holes. The limiting pins have the same diameter as the limiting holes and the matching holes.

[0031] The number of limit pins is consistent with the number of limit holes on the slider seat 82. The number of limit holes determines the number of height adjustment positions of the fuselage. In this embodiment, the number of limit pins is preferably 2. Correspondingly, two limit holes are set on the slider seat 82, which determines that the fuselage 2 has two height adjustment positions. Figure 3 As shown, the fuselage 2 is in a high position; Figure 4 As shown, the fuselage 2 is in a low position.

[0032] When the height is adjusted, the second driving member 84 retracts, driving the limit pin to be withdrawn from the matching hole of the slider 81 and retracted into the limit hole of the slider seat 82, so as to ensure the guiding function of the limit hole on the slider seat 82. The slider 81 can move up and down along the slider seat 82 under the drive of the first driving member 85. The height between the body 2 and the running device 7 is adjusted by changing the length of the first driving member 85.

[0033] When the height adjustment of the body 2 is completed, the limiting pin is pushed by the second driving member 84 to sequentially insert into the limiting hole of the slider seat 82 and the matching hole (not shown in the figure) of the slider 81 to limit the displacement of the slider 81 in the up and down directions.

[0034] Specifically, in this embodiment, the groove is a U-shaped groove, and a blocking block 89 is fixedly disposed at the open end of the U-shaped groove, and the blocking block 89 is fixed to the open end of the U-shaped groove by a fixing pin 810;

[0035] A semicircular groove matching the U-shaped groove is provided on one side of the blocking block 89, and the semicircular groove and the semicircular part of the U-shaped groove form a circular slide groove that allows the sliding rod 88 to slide. The blocking block 89 is set in the U-shaped groove of the mounting seat 811, and the sliding rod 88 only moves along the X direction. The fixing pin 810 fixes the blocking block 89 on the mounting seat 811.

[0036] Specifically, in this embodiment, the rear end of the articulated seat 86 is welded to the traveling device 7, and a through hole is provided on the traveling device 7 for the rear end of the articulated seat 86 to be embedded. After the rear end of the articulated seat 86 extends into the through hole, it is fixed to the traveling device 7 by welding.

[0037] Specifically, in this embodiment, the first driving member 85 is a hydraulic cylinder. The first driving member 85 requires a relatively large force, and is preferably a hydraulic cylinder, but may also be replaced by an electric component that meets the power requirements.

[0038] In this embodiment, the second driving member 84 is preferably a hydraulic cylinder. The hydraulic cylinder can also be replaced by an electric component that meets the power requirements, such as an electric push rod.

[0039] The height adjustment device 8 of the fuselage can adjust the height of the fuselage 2 to improve the position of the discharge port:

[0040] When the height of the fuselage rises, the fuselage 2 rotates relative to the walking device 7 along the negative direction of the Y axis, driving the sliding rod 88 to rotate downward clockwise along the negative direction of the Y axis relative to the hinge seat 86. While the fuselage 2 rotates, it will move slightly along the negative direction of the X axis, so that the length of the sliding rod 88 embedded in the circular slide groove increases;

[0041] When the height of the fuselage decreases, the fuselage 2 rotates relative to the walking device 7 along the positive direction of the Y-axis, driving the sliding rod 88 to rotate upward clockwise along the positive direction of the Y-axis relative to the hinge seat 86. While the fuselage 2 rotates, it will produce a slight movement along the positive direction of the X-axis, so that the length of the sliding rod 88 embedded in the circular slide groove is reduced.

[0042] When the height of the fuselage changes, the sliding rod 88 is always embedded in the circular sliding groove.

[0043] A paving machine comprises the aforementioned fuselage height adjustment device 8 and a material receiving device 1, a fuselage 2, a ceiling assembly 3, a material feeding and distributing device 5, a leveling device 6 and a screed plate 4 which are arranged in sequence from the front end to the rear end of the paving machine, wherein the traveling device 7 is located at the bottom of the fuselage 2, one side of the leveling device 6 is fixedly arranged on the side of the traveling device 7, and the other side is connected to the screed plate 4; the material feeding and distributing device 5, the ceiling assembly 3 and the material receiving device 1 are all arranged above the fuselage 2; the fuselage height adjustment device 8 is arranged between the fuselage 2 and the traveling device 7.

[0044] The traveling device 7 in this embodiment is a crawler-type traveling device 7 , but those skilled in the art who apply the body height adjustment device 8 of the present invention to other engineering machinery (such as engineering machinery using a wheeled traveling device 7 ) should also be regarded as within the protection scope of the present invention.

[0045] The height of the paver body of the present invention is adjustable, especially at the paver discharge port, where there is a large adjustment range, and can adapt to paving conditions of different thicknesses, especially suitable for large thickness paving conditions, which solves the problem of body height adjustment when paving various thicknesses, has stronger versatility and a wider range of use.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A fuselage height adjustment device, characterized in that: It includes a first driving member, a slider, a slider seat, a second driving member, a limit member, a hinge seat, a hinge shaft, a sliding rod, and a mounting seat. The slider seat is fixedly arranged on the fuselage, a slide groove for sliding the slider is arranged in the middle of the slider seat, a plurality of limiting holes are arranged on the side of the slider seat, and a matching hole is arranged on the side of the slider; The bottom end of the slider is embedded in the slide groove, and the top end of the slider is fixed on the walking device; One end of the first driving member is fixed to the side of the fuselage, and the other end is connected to the middle of the slider; One end of the second driving member is connected to the body, and the other end of the second driving member is connected to the limiting member, and the second driving member drives the limiting member to pass through the limiting hole and the matching hole in sequence; The articulated seat is fixed on the front end of the walking device, and the mounting seat is fixed on the fuselage. A groove for embedding the sliding rod is provided inside the mounting seat, one end of the sliding rod is hinged to the hinge seat through the hinge shaft, and the other end of the sliding rod is slidably arranged in the groove.

2. A fuselage height adjustment device according to claim 1, characterized in that: The limiting member is a limiting pin, and there are two groups of limiting pins, which are arranged in parallel.

3. The fuselage height adjustment device according to claim 1, characterized in that: The groove is a U-shaped groove, and a blocking block is fixedly arranged at the open end of the U-shaped groove, and the blocking block is fixed to the open end of the U-shaped groove by a fixing pin; A semicircular groove matching with the U-shaped groove is provided on one side of the blocking block, and the semicircular groove and the semicircular part of the U-shaped groove form a circular sliding groove allowing the sliding rod to slide.

4. The fuselage height adjustment device according to claim 1, characterized in that: The rear end of the articulated seat is welded to a traveling device, a through hole is provided on the traveling device for embedding the rear end of the articulated seat, and the rear end of the articulated seat is inserted into the through hole and fixed to the traveling device by welding.

5. The fuselage height adjustment device according to claim 1, characterized in that: The first driving member is a hydraulic cylinder.

6. The fuselage height adjustment device according to claim 1, characterized in that: The second driving member is an electric push rod or a hydraulic cylinder.

7. A paver, characterized in that: It comprises a fuselage height adjustment device as claimed in any one of claims 1 to 6, and a material receiving device, a fuselage, a ceiling assembly, a material feeding and distributing device, a leveling device and a screed plate which are arranged on the paving machine in sequence from the front end to the rear end, wherein the traveling device is located at the bottom of the fuselage, one side of the leveling device is fixedly arranged on the side of the traveling device, and the other side is connected to the screed plate; the material feeding and distributing device, the ceiling assembly and the material receiving device are all arranged above the fuselage; and the fuselage height adjustment device is arranged between the fuselage and the traveling device.

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