A road paver screed support and fixing device

Abstract

This utility model belongs to the technical field of support and fixing devices, specifically a support and fixing device for a road paver screed, including a support plate, an extension screed, and a fixing plate. Through the adjustment mechanism, in conjunction with the support plate and the fixing plate, the extension screed and the assembled screed can be easily supported and fixed. The two assembled screeds are mounted on the fixing plate, and the extension screed is slidably mounted on the fixing plate with its opening facing downwards. Rotating the double-ended threaded rod causes two transmission plates to move the two extension plates closer together. The two extension plates, through a connecting plate, move two positioning blocks closer together. The positioning blocks are inserted into the assembled screed, thus supporting and fixing the extension screed and the assembled screed. When it is necessary to disassemble, replace, or maintain the extension screed and the assembled screed, the double-ended threaded rod is reversed, and the positioning blocks disengage from the extension screed, thereby releasing the limiting effect on the extension screed and the assembled screed, allowing for their replacement and maintenance.

Description

Technical Field

[0001] This utility model belongs to the technical field of support and fixing devices, specifically a support and fixing device for a road paver screed. Background Technology

[0002] In the field of road construction, pavers are key equipment for achieving uniform paving of materials such as asphalt and concrete. As the core working component of the paver, the screed's installation stability and positional accuracy directly affect the smoothness and construction quality of the road surface. During operation, the screed must withstand various external forces such as material impact and equipment vibration. At the same time, in non-operational states (such as when the equipment is being transported, parked, or maintained), it also needs reliable support and fixation to avoid structural deformation or component damage.

[0003] Existing support and fixing devices mostly use a single hydraulic rod support or mechanical bolt fixing structure. Although the latter has high fixing strength, the disassembly and assembly process is cumbersome, which seriously affects the construction efficiency. Therefore, in order to solve the above problems, a road paver screed support and fixing device is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, a road paver screed support and fixing device is proposed.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a road paver screed support and fixing device, comprising a support plate, an extension screed plate and a fixing plate; the outer wall of the fixing plate is slidably connected to the assembly screed plate.

[0006] An adjustment mechanism is provided on the support plate. The adjustment mechanism includes a through groove at one end of the support plate, a drive groove on the inner side wall of the through groove, and a double-threaded rod rotatably connected to the inner side wall of the drive groove. One end of the double-threaded rod passes through the support plate and communicates with the outside. Both ends of the outer wall of the double-threaded rod are threadedly connected to a transmission plate. An extension plate is fixedly connected to one side of the transmission plate. The other end of the extension plate extends out of the through groove and is fixedly connected to a connecting plate. A positioning block is fixedly connected to the side of the connecting plate near the extension plate. The other end of the positioning block is inserted into the extension ironing plate. By setting up the adjustment mechanism, in conjunction with the support plate and the fixing plate, the extension ironing plate and the assembled ironing plate can be easily supported and fixed.

[0007] Preferably, a protective plate is fixedly connected to one side of the support plate, and a protective groove is provided on the side of the protective plate near the support plate. The protective groove and the protective plate can be used to shield the end of the double-ended threaded rod that is located to the outside, so as to avoid accidental contact.

[0008] Preferably, the top of the extension plate has a limiting groove, and a limiting block is slidably connected in the limiting groove. The bottom end of the limiting block is connected to the inner bottom wall of the limiting groove by a spring, and the top end of the limiting block passes through the support plate and communicates with the outside. The limiting groove, the limiting block and the spring can help to position the extension plate and prevent the double-ended threaded rod from rotating due to the vibration generated by the movement of the paver after the screed is installed on the paver by the support plate.

[0009] Preferably, an auxiliary frame is fixedly connected to the top of the support plate, a pressing plate is slidably connected inside the auxiliary frame, and a pressing block is fixedly connected to the bottom of the pressing plate. By setting up the auxiliary frame, the pressing plate and the pressing block, it is convenient to apply pressure to the two limiting blocks at the same time, and to release the movement and positioning of the two extension plates at the same time.

[0010] Preferably, the inner sidewall of the auxiliary frame is fixedly connected with a stop block. There are two stops, and the two stops are symmetrically distributed with respect to the pressing plate. The stop blocks facilitate the movement and limiting of the pressing plate.

[0011] Preferably, mounting blocks are fixedly connected to both sides of the support plate, and mounting holes are provided on one side of each mounting block. The mounting blocks and mounting holes facilitate the connection and fixation of the support plate to the mounting frame of the paver using bolts.

[0012] Preferably, the outer wall of the connecting plate is provided with a sealing gasket to improve the sealing performance, and both sides of the outer wall of the extended ironing plate are provided with sealing gaskets to improve the sealing performance.

[0013] The beneficial effects of this utility model are:

[0014] This utility model provides a screed support and fixing device for a road paver. Through the adjustment mechanism, in conjunction with the support plate and fixing plate, it facilitates the support and fixing of the extension screed and the assembled screed. The two assembled screeds are mounted on the fixing plate, and the extension screed is slidably mounted on the fixing plate with its opening facing downwards. Rotating the double-ended threaded rod causes two transmission plates to move the two extension plates closer together. The two extension plates, through two connecting plates, move two positioning blocks closer together. The positioning blocks are inserted into the assembled screed, thus supporting and fixing the extension screed and the assembled screed. When it is necessary to disassemble, replace, or maintain the extension screed and the assembled screed, the double-ended threaded rod is reversed, and the positioning blocks disengage from the extension screed, thereby releasing the limiting effect on the extension screed and the assembled screed, allowing for their replacement and maintenance. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the support plate and the extended ironing plate in this utility model;

[0018] Figure 3 This is an exploded structural diagram of the support plate and the extended ironing plate in this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the support plate and auxiliary frame in this utility model.

[0020] Legend:

[0021] 1. Support plate; 2. Extended ironing plate; 3. Fixing plate; 4. Assembled ironing plate; 5. Adjustment mechanism; 51. Through groove; 52. Drive groove; 53. Double-ended threaded rod; 54. Transmission plate; 55. Extension plate; 56. Connecting plate; 57. Positioning block; 6. Protective plate; 7. Limiting block; 8. Spring; 9. Auxiliary frame; 10. Pressing plate; 11. Pressing block; 12. Stop block; 13. Mounting block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] Please see Figures 1-4 This utility model provides a road paver screed support and fixing device, including a rectangular support plate 1, two extended screed plates 2 and a fixing plate 3. The extended screed plate 2 is a rectangular plate with a rectangular through groove at one end, which is adapted to the fixing plate 3 to ensure that the fixing plate 3 can be inserted into the through groove of the extended screed plate 2. An assembly screed plate is slidably connected to the outer wall of the fixing plate 3. The bottom of the assembly screed plate has a rectangular groove adapted to the fixing plate 3. The assembly screed plate and the extended screed plate 2 are used together to extend the length of the screed plate 2 as needed. Sealing gaskets are provided on both sides of the outer wall of the extended screed plate 2 to improve the sealing performance.

[0025] A rectangular mounting block 13 is fixedly connected to both sides of the support plate 1. One side of the mounting block 13 is provided with a mounting hole. Through the setting of the mounting block 13 and the mounting hole, the support plate 1 can be easily connected and fixed to the mounting frame of the paver by bolts.

[0026] An adjustment mechanism 5 is provided on the support plate 1. The adjustment mechanism 5 includes a through groove 51 that passes through the support plate 1 at one end. A rectangular drive groove 52 is provided on the inner side wall of the through groove 51. A double-headed threaded rod 53 is rotatably connected to the inner side wall of the drive groove 52. One end of the double-headed threaded rod 53 passes through the support plate 1 and communicates with the outside.

[0027] A protective plate 6 is fixedly connected to one side of the support plate 1. The protective plate 6 is located at the outer end of the double-ended threaded rod 53. A rectangular protective groove is provided on the side of the protective plate 6 near the support plate 1. The protective groove and the protective plate 6 can be used to shield the outer end of the double-ended threaded rod 53 and prevent accidental contact.

[0028] Both ends of the outer wall of the double-ended threaded rod 53 are threadedly connected to a rectangular transmission plate 54. A rectangular extension plate 55 is fixedly connected to one side of the transmission plate 54. The two extension plates 55 extend into a through groove 51 at opposite ends and are fixedly connected to a rectangular connecting plate 56. A sealing gasket is provided on the outer wall of the connecting plate 56 to improve the sealing performance.

[0029] A rectangular positioning block 57 adapted to the through groove on the extension ironing plate 2 is fixedly connected to one side of the connecting plate 56 near the extension plate 55. The other end of the positioning block 57 is inserted into the extension ironing plate 2.

[0030] By adjusting the setting of the mechanism 5, in conjunction with the support plate 1 and the fixing plate 3, it is easy to support and fix the extension ironing board 2 and the assembled ironing board.

[0031] A rectangular limiting groove is provided on the top of the extension plate 55. A rectangular limiting block 7 is slidably connected in the limiting groove. The bottom end of the limiting block 7 is connected to the inner bottom wall of the limiting groove through a spring 8. The limiting block 7 is pressed by the pressure of the spring 8. The top end of the limiting block 7 passes through the support plate 1 and communicates with the outside.

[0032] The limiting groove, limiting block 7 and spring 8 are designed to help position the extension plate 55, preventing the double-headed threaded rod 53 from rotating due to vibrations caused by the movement of the paver after the screed is installed on the paver via the support plate 1. It should be noted that the limiting block 7 provides initial limiting of the extension plate, which is an enhanced limiting based on the strong thread limiting. The limiting capacity of the limiting block 7 itself cannot guarantee the overall strength of the device.

[0033] A rectangular auxiliary frame 9 is fixedly connected to the top of the support plate 1. A rectangular pressing plate 10 is slidably connected inside the auxiliary frame 9. A rectangular pressing block 11 that matches the limiting groove is fixedly connected to the bottom of the pressing plate 10. With the setting of the auxiliary frame 9, the pressing plate 10 and the pressing block 11, it is convenient to apply pressure to the two limiting blocks 7 at the same time, and to release the movement and positioning of the two extension plates 55 at the same time.

[0034] A rectangular stop 12 is fixedly connected to the inner side wall of the auxiliary frame 9. There are two stops 12, and the two stops 12 are symmetrically distributed relative to the pressing plate 10. The stops 12 facilitate the movement and limiting of the pressing plate 10.

[0035] Based on the above structure, the present invention includes the following implementation process:

[0036] First, slide the two assembled ironing boards onto the fixed plate 3. Then, as needed, add an extension ironing board 2 to extend the overall length of the ironing board 2. That is, slide the extension ironing board 2 with its opening facing down onto the fixed plate 3 and place it between the two ironing boards. At this time, the extension ironing board 2 and the assembled ironing board constitute a complete ironing board.

[0037] It should be noted that in the initial state, most of the extension plate 55 is located on the outside, that is, the distance between the two connecting plates 56 is the maximum value that can be achieved. Then, the support plate 1 is placed on top of the two assembled ironing plates, and the hand is inserted into the protective groove of the protective plate 6 to rotate the end of the double-threaded rod 53 located on the outside.

[0038] The double-ended threaded rod 53 rotates, driving two transmission plates 54 on it to move two extension plates 55 closer together. The two extension plates 55, through two connecting plates 56, drive two positioning blocks 57 closer together until one side of the two connecting plates 56 contacts one end of the ironing board, causing the positioning blocks 57 to insert into the rectangular through slots on the assembled ironing board. The support plate 1, the connecting plate 56, and the positioning blocks 57 support and fix the extension ironing board 2 and the assembled ironing board.

[0039] The support plate 1 can be assembled and fixed to the paver by using the mounting block 13 and mounting holes with bolts. After passing one end of the bolt through the mounting hole and the mounting hole on the paver mounting frame, the nut is turned onto the bolt to complete the fixing of the support plate 1 to the paver.

[0040] When it is necessary to disassemble, replace or maintain the extension ironing plate 2 and the assembly ironing plate, first press the pressing plate 10. The pressing plate 10 applies pressure to the two limiting blocks 7 simultaneously through the pressing block 11, causing the top of the limiting block 7 to retract into the limiting groove, thus initially releasing the positioning of the extension plate 55. Then reverse the double-headed threaded rod 53, causing the connecting plate 56 to move the positioning blocks 57 away from each other. The positioning blocks 57 disengage from the extension ironing plate 2, thus releasing the limiting of the extension ironing plate 2 and the assembly ironing plate, allowing for the replacement and maintenance of both.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A screed support and fixing device for a road paver, characterized in that: It includes a support plate (1), an extension ironing plate (2), and a fixing plate (3); the outer wall of the fixing plate (3) is slidably connected to an assembly ironing plate (4); An adjustment mechanism (5) is provided on the support plate (1). The adjustment mechanism (5) includes a through groove (51) opened at one end of the support plate (1). A drive groove (52) is opened on the inner side wall of the through groove (51). A double-headed threaded rod (53) is rotatably connected to the inner side wall of the drive groove (52). One end of the double-headed threaded rod (53) passes through the support plate (1) and communicates with the outside. Both ends of the outer wall of the double-headed threaded rod (53) are threadedly connected to a transmission plate (54). An extension plate (55) is fixedly connected to one side of the transmission plate (54). The other end of the extension plate (55) extends out of the through groove (51) and is fixedly connected to a connecting plate (56). A positioning block (57) is fixedly connected to the side of the connecting plate (56) near the extension plate (55). The other end of the positioning block (57) is inserted into the extension ironing plate (2).

2. The screed support and securing device of claim 1, wherein: A protective plate (6) is fixedly connected to one side of the support plate (1), and a protective groove is provided on the side of the protective plate (6) near the support plate (1).

3. The road paver screed support and fixing device according to claim 2, characterized in that: The top of the extension plate (55) has a limiting groove, and a limiting block (7) is slidably connected in the limiting groove. The bottom end of the limiting block (7) is connected to the inner bottom wall of the limiting groove by a spring (8). The top end of the limiting block (7) passes through the support plate (1) and communicates with the outside.

4. The road paver screed support and fixing device according to claim 3, characterized in that: An auxiliary frame (9) is fixedly connected to the top of the support plate (1), a pressing plate (10) is slidably connected inside the auxiliary frame (9), and a pressing block (11) is fixedly connected to the bottom of the pressing plate (10).

5. The road paver screed support and fixing device according to claim 4, characterized in that: The inner wall of the auxiliary frame (9) is fixedly connected with a stop block (12), and there are two stops block (12), which are symmetrically distributed relative to the pressing plate (10).

6. The road paver screed support and fixing device according to claim 5, characterized in that: Mounting blocks (13) are fixedly connected to both sides of the support plate (1), and mounting holes are provided on one side of the mounting block (13).

7. The road paver screed support and fixing device according to claim 6, characterized in that: The outer wall of the connecting plate (56) is provided with a sealing gasket, and both sides of the outer wall of the extended ironing plate (2) are provided with sealing gaskets.

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