Hydraulic roller push mechanism for paving machine

Abstract

The utility model relates to a hydraulic roller push mechanism for a paving machine, comprising a mounting seat, a sliding seat, a roller seat and a push cylinder; the push cylinder is fixedly arranged on the mounting seat, the sliding seat is arranged to move forward and backward on the mounting seat, the push rod of the push cylinder is connected to the sliding seat to drive the sliding seat to move; the roller seat is connected to the sliding seat and moves forward and backward with the sliding seat, and two push rollers are installed on the front side of the roller seat. The sliding seat can be driven to move forward and backward by the push cylinder, thereby adjusting the extension distance of the two push rollers on the sliding seat, so that the push roller mechanism can adapt to different specifications of material transport vehicles in front.

Description

Technical Field

[0001] The utility model relates to the field of road paving equipment, in particular to a hydraulic roller pushing mechanism of a road paving machine. Background Art

[0002] A paver is a construction equipment mainly used for paving various materials on the base and surface layers of highways. As a functional module on the paver, the push roller mechanism is mainly installed at the front end of the paver and located below the hopper. The push roller mechanism is used to push the rear wheels of the material transport vehicle, so that the material transport vehicle and the paver can move synchronously, smoothly and at a uniform speed for long-distance road paving.

[0003] The push roller mechanism on the current paving machine mainly has the following defects:

[0004] 1. The front and rear positions of the push rollers in the push roller mechanism cannot be adjusted. When the paver is operating, it needs to cooperate with the rear wheels of material transport vehicles of different specifications. The distance between the rear wheels of different material transport vehicles and the rear end of the vehicle body is different. Since the front and rear distance of the push rollers in the push roller mechanism cannot be adjusted, the current paver cannot adapt to various specifications of material transport vehicles;

[0005] 2. In addition to the fact that the front and rear positions of the push rollers in the push roller mechanism cannot be adjusted, the horizontal angle at which they are installed in the paver is also fixed, that is, the axial direction of the push roller is perpendicular to the moving direction of the paver. If the material transport vehicle is in an aligned state, then there is line contact between the push roller and the wheels of the material transport vehicle. However, in fact, many times, the position of the material transport vehicle in front is not always aligned. If the wheels are not aligned, then point contact is formed between the push roller and the wheels of the material transport vehicle. When the push roller is subjected to local force, the entire push roller is very easy to be damaged. Utility Model Content

[0006] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a hydraulic push roller mechanism for a paver, so as to solve the problem that the front and rear positions of the push rollers in the hydraulic push roller mechanism of the paver cannot be adjusted, resulting in the paver being unable to adapt to material transport vehicles of various specifications.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A hydraulic roller pushing mechanism for a paving machine is provided, comprising:

[0009] Mounting seat, slide seat, roller seat and push cylinder;

[0010] The push cylinder is fixedly arranged on the mounting seat, the slide seat is arranged to move forward and backward on the mounting seat, and the push rod of the push cylinder is connected to the slide seat to drive the slide seat to move;

[0011] The roller seat is connected with the slide seat and moves forward and backward along with the slide seat. Two push rollers are installed at the front side of the roller seat.

[0012] Furthermore, the roller seat and the slide seat are rotatably connected, and the rotatable connection structure includes:

[0013] The swing shaft is a T-shaped piece, the upper end of which is fixedly connected to the lower surface of the slide seat, and the lower end of which passes through the rotating center hole of the roller seat and forms a step with the rotating center hole to axially clamp the roller seat and the slide seat together. The roller seat rotates horizontally with the swing shaft as the axis.

[0014] Furthermore, the connection structure between the swing shaft and the slide seat is:

[0015] A positioning column and a plurality of bolt holes are arranged at the center of the upper end of the swing shaft;

[0016] The slide seat is provided with a positioning hole and a plurality of blind bolt holes;

[0017] The positioning column is matched with the positioning hole, and a plurality of connecting bolts are connected with the bolt blind holes after passing through the bolt through holes, so as to lock the swing shaft at the lower end of the slide seat.

[0018] Furthermore, a limiting step for limiting the horizontal rotation angle of the roller seat is provided at the lower end of the slide seat.

[0019] Furthermore, a pair of L-shaped guide blocks are provided at the lower end of the mounting seat, and a slot is formed between the guide block and the bottom surface of the mounting seat. The left and right ends of the slide are located in the slot, and the slide moves forward and backward along the slot under the mounting seat.

[0020] Furthermore, guide wheels are respectively arranged at the front and rear ends of the guide block, and the guide wheels are in contact with the side surfaces of the slide seat.

[0021] Furthermore, the installation structure between the push roller and the roller seat includes:

[0022] A pair of supports, a connecting plate and a pair of shaft seats;

[0023] Two supports are fixed at the front end of the roller seat, and both ends of the connecting plate are fixedly connected to the supports respectively;

[0024] A semi-axle hole is provided at the front end of the support, the axle seat is fixed on the outside of the support, the central axis of the push roller passes through the semi-axle hole and penetrates into the axle seat, and the push roller is supported on the support via the axle seat.

[0025] Furthermore, a scraper is formed on the rear side of the connecting plate, and a scraping edge of the scraper is close to the surface of the push roller to scrape away impurities on the surface of the push roller.

[0026] The beneficial effects of the utility model are:

[0027] The hydraulic push roller mechanism of the paver of the utility model can drive the slide seat to move forward and backward through the push cylinder, thereby adjusting the extension distance of two push rollers on the slide seat, so that the push roller mechanism can adapt to material transport vehicles of different specifications in front.

[0028] At the same time, the roller seat can rotate horizontally around the slide seat, so that the push roller can adjust the contact angle according to the position of the front wheel, so that the push roller and the wheel form a straight line contact, ensuring that the push roller can be evenly stressed and extending the service life of the push roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The utility model is further described below in conjunction with the accompanying drawings.

[0030] Figure 1 This is a three-dimensional diagram of the hydraulic roller push mechanism of the utility model paver;

[0031] Figure 2 This is a top view of the hydraulic roller push mechanism of the utility model paver;

[0032] Figure 3 yes Figure 2 Middle AA section view;

[0033] Figure 4 This is a schematic diagram of the hydraulic roller pushing mechanism (without roller seat) of the utility model paver;

[0034] Figure 5 is a schematic diagram of the guide block;

[0035] Figure 6 It is a structural diagram between the swing shaft and the slide seat;

[0036] Figure 7 It is the structural diagram between the roller seat and the slide seat;

[0037] Figure 8 It is a schematic diagram of the roller seat;

[0038] Fig. 9 and Fig.10 This is the installation structure diagram between the push roller and the roller seat;

[0039] Fig.11 It is a state diagram of the paver when it is operating through the hydraulic push roller mechanism of the utility model;

[0040] in,

[0041] 1. Mounting seat, 11. Push cylinder;

[0042] 2. Sliding seat, 21. Limiting step, 22. Positioning hole;

[0043] 3. Roller seat, 4. Push roller;

[0044] 5. Guide block, 51. Guide wheel;

[0045] 6. Swing shaft;

[0046] 71. Support, 72. Connecting plate, 73. Axle seat, 74. Half-axle hole.

[0047] 8. Material transport vehicle. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0049] The present application provides a hydraulic roller push mechanism for a paving machine, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0050] In order to solve the technical problem that the front and rear positions of the push roller 4 in the hydraulic push roller mechanism of the paving machine in the prior art cannot be adjusted, resulting in the paving machine being unable to adapt to various specifications of material transport vehicles, an embodiment of the present application provides a hydraulic push roller mechanism for the paving machine, which is described in detail below.

[0051] like Figures 1 to 10 As shown, a hydraulic roller pushing mechanism of a paving machine includes

[0052] Mounting seat 1, sliding seat 2, roller seat 3 and push cylinder 11;

[0053] The push cylinder 11 is fixedly arranged on the mounting seat 1, and the slide seat 2 is arranged to move forward and backward on the mounting seat 1. The push rod of the push cylinder 11 is connected to the slide seat 2 to drive the slide seat 2 to move;

[0054] The roller seat 3 is connected to the slide seat 2 and moves forward and backward along with the slide seat 2 . Two push rollers 4 are installed at the front side of the roller seat 3 .

[0055] In the entire hydraulic roller pushing mechanism of the paver, the mounting surface at the rear side of the mounting seat 1 is fixedly connected to the body of the paver.

[0056] In this embodiment, the push cylinder 11 is a hydraulic cylinder.

[0057] Specifically, as an optional implementation in this embodiment, Figures 1 to 6 As shown, the roller seat 3 and the slide seat 2 are rotatably connected, and the rotatable connection structure includes:

[0058] The swing shaft 6 is a T-shaped piece, the upper end of which is fixedly connected to the lower surface of the slide 2, and the lower end of which passes through the rotation center hole of the roller seat 3 and forms a step with the rotation center hole to axially clamp the roller seat 3 and the slide 2 together. The roller seat 3 rotates horizontally with the swing shaft 6 as the axis.

[0059] There is a rotation gap between the roller seat 3 and the swing shaft 6, so that the roller seat 3 can adjust the angle according to the position of the front wheel.

[0060] Specifically, as an optional implementation in this embodiment, Figure 3 Figure 6 As shown, the connection structure between the swing shaft 6 and the slide seat 2 is:

[0061] A positioning column and a plurality of bolt holes are arranged at the center of the upper end of the swing shaft 6;

[0062] The slide seat 2 is provided with a positioning hole 22 and a plurality of blind bolt holes;

[0063] The positioning column cooperates with the positioning hole 22 , and a plurality of connecting bolts pass through the bolt holes and are connected with the bolt blind holes to lock the swing shaft 6 at the lower end of the slide seat 2 .

[0064] The swing shaft 6 is fixedly connected to the slide 2 through positioning columns and various connecting bolts, which improves the stability and strength of the entire swing shaft 6 on the slide 2 and its impact resistance, so that it can provide stable support force for the roller seat 3, ensuring that the roller seat 3 and the push roller 4 can push the wheels of the front material transport vehicle 8 to roll.

[0065] Specifically, as an optional implementation in this embodiment, Figure 6 As shown, a limiting step 21 for limiting the horizontal rotation angle of the roller seat 3 is provided at the lower end of the slide seat 2.

[0066] The limiting step 21 is located at the rear side of the roller seat 3. The distance between the limiting step 21 and the roller seat 3 is the space in which the roller seat 3 can rotate horizontally. The actual rotation angle and distance are selected by the user according to actual conditions.

[0067] Specifically, as an optional implementation in this embodiment, Figure 4 Figure 5 As shown, a pair of L-shaped guide blocks 5 are provided at the lower end of the mounting seat 1, and a slot is formed between the guide block 5 and the bottom surface of the mounting seat 1. The left and right ends of the slide 2 are located in the slot, and the slide 2 moves forward and backward along the slot under the mounting seat 1.

[0068] The left and right guide blocks 5 are used to limit the lateral position of the slide 2 to ensure that the slide 2 can stably move forward and backward under the mounting base 1.

[0069] Specifically, as an optional implementation in this embodiment, Figure 5 As shown, guide wheels 51 are respectively provided at the front and rear ends of the guide block 5 , and the guide wheels 51 abut against the side surfaces of the slide seat 2 .

[0070] The guide wheel 51 is used to ensure the smoothness of the forward and backward movement of the slide 2.

[0071] Specifically, as an optional implementation in this embodiment, Figures 7 to 10 As shown, the installation structure between the push roller 4 and the roller seat 3 is as follows:

[0072] A pair of supports 71, a connecting plate 72 and a pair of shaft seats 73;

[0073] Two supports 71 are fixed at the front end of the roller seat 3, and both ends of the connecting plate 72 are fixedly connected to the supports 71 respectively;

[0074] A semi-axle hole 74 is formed at the front end of the support 71 , and the shaft seat 73 is fixed on the outside of the support 71 . The central axis of the push roller 4 passes through the semi-axle hole 74 and penetrates into the shaft seat 73 . The push roller 4 is supported on the support 71 via the shaft seat 73 .

[0075] In this embodiment, the structure can quickly install the push roller 4 on the roller seat 3. The connecting plate 72 ensures the installation strength of the left and right supports 71 on the roller seat 3. The central axis of the push roller 4 is directly connected to the support 71 with the help of the left and right axle seats 73. The axle seat 73 and the support 71 are fastened by bolts, so that the push roller 4 can be quickly installed on the roller seat 3.

[0076] Specifically, as an optional implementation in this embodiment, a scraper is formed on the rear side of the connecting plate 72 , and the scraping edge of the scraper is close to the surface of the push roller 4 to scrape away impurities on the surface of the push roller 4 .

[0077] Specifically, the scraper and the connecting plate 72 are an integrated structure, and the scraper is formed by bending the connecting plate 72 .

[0078] like Fig.11 The paver is equipped with the above-mentioned hydraulic push roller mechanism, and the push roller 4 of the hydraulic push roller mechanism abuts against the wheels of the front material transport vehicle 8. The paver directly pushes the front material transport vehicle 8 (put in neutral gear) forward through the two push rollers 4.

[0079] The hydraulic roller pushing mechanism of the utility model can control the extension length of the roller 4 by the pushing cylinder 11 according to the specifications of the front material transport vehicle 8. After the extension distance of the roller 4 is adjusted, the paver can start working. When the front material transport vehicle 8 is in a skewed state, the roller seat 3 can automatically adjust the angle so that the roller 4 is in direct and full contact with the wheel, ensuring that the roller 4 can be evenly stressed and extending the service life of the roller 4.

[0080] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0081] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0082] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0083] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0084] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0085] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0086] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A hydraulic roller push mechanism for a paving machine, characterized in that: include A mounting seat (1), a sliding seat (2), a roller seat (3) and a push cylinder (11); The push cylinder (11) is fixedly arranged on the mounting seat (1), and the slide seat (2) is arranged to move forward and backward on the mounting seat (1). The push rod of the push cylinder (11) is connected to the slide seat (2) to drive the slide seat (2) to move; The roller seat (3) is connected to the slide seat (2) and moves forward and backward along with the slide seat (2). Two push rollers (4) are installed on the front side of the roller seat (3).

2. The hydraulic roller pushing mechanism of the paving machine according to claim 1 is characterized in that: The roller seat (3) and the slide seat (2) are rotatably connected, and the rotatably connected structure comprises: The swing shaft (6) is a T-shaped piece, the upper end of which is fixedly connected to the lower surface of the slide seat (2), and the lower end of which passes through the rotation center hole of the roller seat (3) and forms a step with the rotation center hole to axially clamp the roller seat (3) and the slide seat (2) together. The roller seat (3) rotates horizontally with the swing shaft (6) as the axis.

3. The hydraulic roller pushing mechanism of the paving machine according to claim 2 is characterized in that: The connection structure between the swing shaft (6) and the slide seat (2) is: A positioning column and a plurality of bolt holes are arranged at the center of the upper end of the swing shaft (6); The slide seat (2) is provided with a positioning hole (22) and a plurality of blind bolt holes; The positioning column cooperates with the positioning hole (22), and a plurality of connecting bolts pass through the bolt holes and are connected with the bolt blind holes to lock the swing shaft (6) at the lower end of the slide seat (2).

4. The hydraulic roller pushing mechanism of the paving machine according to claim 2 is characterized in that: A limiting step (21) for limiting the horizontal rotation angle of the roller seat (3) is provided at the lower end of the slide seat (2).

5. The hydraulic roller pushing mechanism of a paving machine according to claim 1 is characterized in that: A pair of L-shaped guide blocks (5) are provided at the lower end of the mounting seat (1), a slot is formed between the guide blocks (5) and the bottom surface of the mounting seat (1), the left and right ends of the slide seat (2) are located in the slot, and the slide seat (2) moves forward and backward along the slot below the mounting seat (1).

6. The hydraulic roller pushing mechanism of the paving machine according to claim 5 is characterized in that: Guide wheels (51) are respectively arranged at the front and rear ends of the guide block (5), and the guide wheels (51) are in contact with the side surfaces of the slide seat (2).

7. The hydraulic roller pushing mechanism of a paving machine according to claim 1 is characterized in that: The installation structure between the push roller (4) and the roller seat (3) comprises: A pair of supports (71), a connecting plate (72) and a pair of shaft seats (73); Two supports (71) are fixed at the front end of the roller seat (3), and both ends of the connecting plate (72) are fixedly connected to the supports (71) respectively; A semi-axial hole (74) is provided at the front end of the support (71), the shaft seat (73) is fixed on the outside of the support (71), the central axis of the push roller (4) passes through the semi-axial hole (74) and penetrates into the shaft seat (73), and the push roller (4) is supported on the support (71) via the shaft seat (73).

8. The hydraulic roller pushing mechanism of a paving machine according to claim 7 is characterized in that: A scraper is formed on the rear side of the connecting plate (72), and the scraping edge of the scraper is close to the surface of the push roller (4) so ​​as to scrape away impurities on the surface of the push roller (4).

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