A milling machine

Abstract

The present invention discloses a milling machine, which includes a vehicle frame, a display bracket and a display; the display bracket includes a fixed seat, a rotating seat, a rotating arm and a limit support frame. The fixed seat is installed on the vehicle frame, the rotating seat is rotatably connected to the fixed seat, one end of the rotating arm is rotatably connected to the rotating seat, and the other end is connected to the display. A limit support frame is installed at one end of the rotating arm close to the rotating seat, and the limit support frame is used to limit the rotating arm at different rotation angles. In the milling machine provided by the present invention, the display can be adjusted in the up, down, left and right positions, which is convenient for people to operate the display on both sides of the vehicle body. At the same time, the overall transportation height of the machine can be reduced, and the stability and safety of the display during use are high.

Description

Technical Field

[0001] The present invention belongs to the technical field of road machinery, and particularly relates to a milling machine. Background Art

[0002] The pavement milling machine is a special mechanical equipment for highway and urban road maintenance operations, and is mainly used for the excavation and renovation of asphalt concrete surfaces such as highways, airports, docks, and parking lots, the removal of pavement diseases such as asphalt pavement ruts, cracks, boils, and pavement markings, the roughening of cement pavements, and the milling of surface step offsets.

[0003] When the large milling machine is in construction operation, it needs to be operated left and right back and forth, and due to the requirement of vision, it is necessary to see the front crawler and the side plate of the milling chamber, and the right armrest ladder seat, etc. need to extend outside the frame. At present, the display bracket is fixed on the frame and cannot be conveniently adjusted up, down, left and right, which affects the operator's convenient operation of the display on both sides. Moreover, since the display bracket cannot be lowered, the overall transportation of the machine is also overheight. The right armrest ladder, etc. are all fixed on the frame, and the whole machine is overwidth during edge milling or long-distance transportation, which affects edge milling and long-distance transportation. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a milling machine in which the display can be adjusted in position up, down, left and right, which is convenient for people to operate the display on both sides of the vehicle body. At the same time, the overall transportation height of the machine can be reduced, and the stability and safety of the display during use are high.

[0005] The present invention provides the following technical solutions:

[0006] A milling machine includes a frame, a display bracket, and a display; the display bracket includes a fixed seat, a rotating seat, a rotating arm, and a limit support frame. The fixed seat is installed on the frame, the rotating seat is rotatably connected to the fixed seat, one end of the rotating arm is rotatably connected to the rotating seat, the other end is connected to the display, and a limit support frame is installed at one end of the rotating arm close to the rotating seat for limiting the rotating arm at different rotation angles.

[0007] Further, the rotating seat includes an upper cylinder, a support column, and a rotating column connected in sequence from top to bottom. The upper cylinder is rotatably connected to the rotating arm through a first pin shaft. The rotating column is inserted into the fixed seat, and a rolling bearing and a retaining ring located outside the rolling bearing are installed between the rotating column and the fixed seat.

[0008] Further, the rotating column is provided with rotation limit holes arranged in a circumferential direction, and a dividing pin is installed on the fixed seat, and the dividing pin can penetrate the fixed seat and be clamped in the rotation limit holes.

[0009] Further, the limit support frame includes a limit post and a limit plug fixedly connected thereto. A limit frame is provided on the support post. The limit frame is provided with a limit hole. The diameter of the limit hole is larger than the diameter of the limit post and smaller than the diameter of the limit plug. A notch capable of engaging with the edge of the limit hole is provided at the end of the limit post.

[0010] Further, a limit plate is installed inside the rotating arm through bolts. One end of the limit plate can be inserted into the upper cylinder.

[0011] Further, it further includes a front armrest. The front armrest includes a bottom plate, an armrest frame fixedly connected to the bottom plate, and a flip seat rotatably connected to the armrest frame. A slider is installed at the bottom of the bottom plate. A slide rail slidably matched with the slider is installed on the vehicle frame. A limit groove is provided on the bottom plate. The length of the limit groove is the same as the moving stroke of the bottom plate. A fixing post penetrating through the limit groove is provided on the vehicle frame.

[0012] Further, the front armrest further includes a latch assembly. The latch assembly includes a limit angle plate fixed to the side of the armrest frame, a fixed angle plate fixed to the vehicle frame, and a spring pin connecting the limit angle plate and the fixed angle plate. The spring pin includes a limit sleeve connected to the fixed angle plate, a latch pin penetrating through the limit sleeve, and a spring connecting between the end of the latch pin and the limit sleeve. A latch slot matching the latch pin is provided on the limit angle plate.

[0013] Further, it further includes a rear armrest. An installation post is rotatably connected to the rear armrest. The installation post is fixed to the vehicle frame.

[0014] Further, a limit disk is provided on the installation post. Two bayonets are provided on the limit disk. A latch block is provided on one side of the rear armrest close to the installation post. When the rear armrest is opened and closed, the latch block is respectively clamped in the two bayonets.

[0015] Further, it further includes a ladder. The ladder includes a first-stage ladder and a second-stage ladder rotatably connected through a second pin shaft. The second-stage ladder is fixed to the vehicle frame. The first-stage ladder is provided with a long pin hole for accommodating the sliding rotation of the pin shaft. The second-stage ladder is provided with a rubber stop block. When the first-stage ladder is unfolded, it abuts against the rubber stop block.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) In the present invention, the fixed seat of the display bracket is installed on the vehicle frame. The rotating seat is rotatably connected to the fixed seat. One end of the rotating arm is rotatably connected to the rotating seat, and the other end is connected to the display. Therefore, by rotating the rotating seat and the rotating arm, the up, down, left, and right position adjustment of the display can be realized, which is convenient for people to operate the display on both sides of the vehicle body. At the same time, when transporting the whole machine, lowering the display can reduce the transportation height of the whole machine;

[0018] (2) In the present invention, a limiting support frame is installed at one end of the rotating arm close to the rotating base. The limiting support frame is used to limit the rotating arm at different rotation angles and support the rotating arm, thereby realizing the stability and safety during the use of the display. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic three-dimensional structure diagram of a milling machine in an embodiment of the present invention Figure 1 (When the handrail and the ladder are both stored and the display is in the middle);

[0020] Figure 2 is Figure 1 a partial structure enlarged view in

[0021] Figure 3 is a schematic three-dimensional structure diagram of a milling machine in an embodiment of the present invention Figure 2 (When the handrail and the ladder are both extended and the display is on the right);

[0022] Figure 4 is Figure 3 a partial structure enlarged view in

[0023] Figure 5 is a schematic front view structure diagram of a display bracket and a display in an embodiment of the present invention;

[0024] Figure 6 is a schematic side view structure diagram of a display bracket and a display in an embodiment of the present invention Figure 1 (When the rotating arm is raised in the middle);

[0025] Figure 7 is a schematic side view structure diagram of a display bracket and a display in an embodiment of the present invention Figure 2 (When the rotating arm is raised in the middle);

[0026] Figure 8 is a schematic side view structure diagram of a display bracket and a display in an embodiment of the present invention Figure 3 (When the rotating arm is lowered in the middle);

[0027] Figure 9 is a schematic partial structure diagram of a front handrail in an embodiment of the present invention;

[0028] Figure 10 is Figure 9 a structure diagram of a pin assembly in

[0029] Figure 11 is a schematic partial structure diagram of a right rear handrail in an embodiment of the present invention;

[0030] Figure 12 is a schematic partial structure diagram of a ladder in an embodiment of the present invention;

[0031] In the figure, the markings are: 1, rear armrest; 2, flip seat; 3, monitor bracket; 4, limit support frame; 5, vehicle frame; 6, front armrest; 7, first-level ladder; 8, second-level ladder; 9, bolt; 10, limit sleeve; 11, spring; 12, slide rail; 13, slider; 14, fixed column; 15, rotating arm; 16, first pin shaft; 17, limit plate; 18, rotating seat; 181, upper cylinder; 182, support column; 183, rotating column; 184, limit frame; 19, indexing pin; 20, fixed seat; 21, limit column; 22, limit plug; 23, monitor; 24, rolling bearing; 25, retaining ring; 26, rotating limit hole; 27, bayonet; 28, long pin hole; 29, rubber stop; 30, fixed angle plate; 31, bolt slot; 32, armrest frame; 33, bottom plate; 34, limit angle plate; 35, limit groove; 36, mounting column; 37, limit disc; 38, clamping block; 39, notch; 40, second pin shaft. Detailed implementation mode

[0032] The present invention will be further described below with reference to 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.

[0033] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by the terms "front", "rear", "left", "right", "up", "down", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and does not require the present invention to be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0034] Embodiment 1

[0035] As Figures 1 - 8 shown, this embodiment provides a milling machine, including a vehicle frame 5, a monitor bracket 3 and a monitor 23; the monitor bracket 3 includes a fixed seat 20, a rotating seat 18, a rotating arm 15 and a limit support frame 4. The fixed seat 20 is installed on the vehicle frame 5, the rotating seat 18 is rotatably connected to the fixed seat 20, one end of the rotating arm 15 is rotatably connected to the rotating seat 18, and the other end is connected to the monitor 23. A limit support frame 4 is installed at one end of the rotating arm 15 close to the rotating seat 18, and the limit support frame 4 is used to limit the rotating arm 15 at different rotation angles.

[0036] As Figures 5 - 8As shown, the rotating base 18 includes an upper cylinder 181, a support column 182, and a rotating column 183 that are connected in sequence from top to bottom. The upper cylinder 181 is rotatably connected to the rotating arm 15 through a first pin shaft 16. The rotating column 183 is inserted into the fixed base 20. A rolling bearing 24 and a retaining ring 25 located outside the rolling bearing 24 are installed between the rotating column 183 and the fixed base 20. The rolling bearing 24 is used to realize the circumferential rotation of the rotating base 18 relative to the fixed base 20, and the retaining ring 25 is used to prevent the rolling bearing 24 from moving up and down. The rotating column 183 is provided with rotation limiting holes 26 arranged in the circumferential direction. A indexing pin 19 is installed on the fixed base 20. The indexing pin 19 can penetrate the fixed base 20 and be clamped in the rotation limiting holes 26 to realize the relative fixation of the rotating base 18 and the fixed base 20 after the rotating base 18 rotates at different angles.

[0037] As Figures 5 - 8 shown, the limit support frame 4 includes a limit column 21 and a limit plug 22 that are fixedly connected. A limit frame 184 is provided on the support column 182. The limit frame 184 is provided with a limit hole. The diameter of the limit hole is larger than the diameter of the limit column 21 and smaller than the diameter of the limit plug 22. A notch 39 that can be engaged with the edge of the limit hole is provided at the end of the limit column 21. When the rotating arm 15 is lifted upward, the rotating arm 15 rotates relative to the rotating base 18 with the first pin shaft 16 as the center. When the rotating arm 15 is lifted to a certain height, the notch 39 at the end of the limit column 21 is engaged with the edge of the limit hole to limit and support the rotating arm 15. When it is necessary to lay down the rotating arm 15, only need to slightly lift the rotating arm 15 upward to disengage the notch 39 from the edge of the limit hole and then insert it into the limit hole. At this time, the limit plug 22 abuts against the limit frame 184 to limit and support the rotating arm 15.

[0038] As Figures 5 - 8 shown, a limit plate 17 is installed inside the rotating arm 15 through bolts. One end of the limit plate 17 can be inserted into the upper cylinder 181. When the vehicle is milling, the rotating arm 15 will vibrate up and down. The function of the limit plate 17 is to prevent the notch 39 of the limit column 21 from completely disengaging from the edge of the limit hole, so that the limit support frame 4 will not suddenly fall due to its own gravity and fail to play a supporting role.

[0039] The working principle of this embodiment is as follows:

[0040] During construction, in order to meet the use requirements of the display 23, the left and right position of the display 23 can be adjusted by rotating the rotating seat 18. When it is rotated to a suitable position, the position is fixed by the indexing pin 19; the upper and lower position of the display 23 can be adjusted by rotating the rotating arm 15. When it is rotated to a certain height, the position is fixed by the limit support frame 4 to ensure the stability and safety of the display 23 during use. When the whole machine needs to be transported, the display 23 is restored to the middle of the frame 5 by rotating the rotating seat 18, and the display 23 is kept at the lowest height by rotating the rotating arm 15 to a horizontal level, thereby reducing the height of the whole machine for transportation.

[0041] Example 2

[0042] like Figures 1 - 4 As shown, this embodiment provides a milling machine, which also includes a front handrail 6, a rear handrail 1 and a ladder.

[0043] like Figure 9 As shown, the front armrest 6 includes a bottom plate 33, an armrest frame 32 fixedly connected to the bottom plate 33, and a flip seat 2 rotatably connected to the armrest frame 32; a slider 13 is installed at the bottom of the bottom plate 33, and a slide rail 12 slidably matched with the slider 13 is installed on the frame 5; a limiting groove 35 is provided on the bottom plate 33, and the length of the limiting groove 35 is the same as the moving stroke of the bottom plate 33, and a fixed column 14 is provided on the frame 5 to penetrate the limiting groove 35. When the armrest frame 32 is pulled, the slider 13 moves along the slide rail 12, so that the front armrest 6 extends out of the frame 5, which is convenient for construction work; when the armrest frame 32 is pushed, the front armrest 6 can be pushed into the frame 5 for storage, thereby reducing the width of the whole machine for transportation; the fixed column 14 can limit the bottom plate 33 to ensure that the front armrest 6 is extended and stored within a certain range.

[0044] like Figure 10 As shown, the front armrest 6 also includes a latch assembly, which includes a limiting angle plate 34 fixed to the side of the armrest frame 32, a fixed angle plate 30 fixed to the vehicle frame 5, and a spring pin connecting the limiting angle plate 34 and the fixed angle plate 30. The spring pin includes a limiting sleeve 10 connected to the fixed angle plate 30, a latch 9 penetrating the limiting sleeve 10, and a spring 11 connected between the end of the latch 9 and the limiting sleeve 10. The limiting angle plate 34 is provided with a latch slot 31 matching the latch 9. Under normal conditions, the spring 11 is compressed, thereby pushing the latch 9 to insert into the latch slot 31, limiting the upper end of the front armrest 6, making the front armrest 6 more stable and reliable; when the front armrest 6 needs to slide, it is only necessary to manually pull the latch 9 to disengage the latch 9 from the latch slot 31 of the front armrest; when the front armrest 6 slides to the outermost end, the front armrest 6 is in a cantilever state, and the latch 9 also plays a supporting role.

[0045] like Figure 11As shown, the rear armrest 1 is rotatably connected to the mounting post 36, and the mounting post 36 is fixed to the vehicle frame 5. A limit disc 37 is provided on the mounting post 36, and two bayonets 27 are provided on the limit disc 37. A latch 38 is provided on one side of the rear armrest 1 close to the mounting post 36. When the rear armrest 1 is opened and closed, the latch 38 is respectively engaged in the two bayonets 27. When the latch 38 is engaged in the bayonet 27, the position of the rear armrest 1 is fixed and cannot be rotated; when the rear armrest 1 needs to be rotated, only need to manually lift the rear armrest 1 to disengage the latch 38 on the rear armrest 1 from the bayonet 27, and then the rear armrest 1 can be rotated.

[0046] As Figure 12 As shown, the ladder includes a first-stage ladder 7 and a second-stage ladder 8 that are rotatably connected by a second pin shaft 40. The second-stage ladder 8 is fixed to the vehicle frame 5. The first-stage ladder 7 is provided with a long pin hole 28 for accommodating the sliding and rotation of the pin shaft, and the second-stage ladder 8 is provided with a rubber stopper 29. When the first-stage ladder 7 is unfolded, it abuts against the rubber stopper 29. When the first-stage ladder 7 rotates downward naturally, the upper end of the first-stage ladder 7 abuts against the rubber stopper 29; after the first-stage ladder 7 is turned upward, it is closely attached to the second-stage ladder 8 through the long pin hole 28 and will not fall off, realizing the storage of the first-stage ladder 7 and reducing the width of the whole machine during transportation.

[0047] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. A milling machine, characterized in that, it includes a vehicle frame, a display bracket and a display; the display bracket includes a fixed seat, a rotating seat, a rotating arm and a limiting support frame. The fixed seat is installed on the vehicle frame. The rotating seat is rotatably connected to the fixed seat. One end of the rotating arm is rotatably connected to the rotating seat, and the other end is connected to the display. A limiting support frame is installed at one end of the rotating arm close to the rotating seat. The limiting support frame is used to limit the rotating arm at different rotation angles; the rotating seat includes an upper cylinder, a support column and a rotating column connected in sequence from top to bottom. The upper cylinder is rotatably connected to the rotating arm through a first pin shaft. The rotating column is inserted into the fixed seat; the limiting support frame includes a limiting column and a limiting plug fixedly connected. A limiting frame is provided on the support column. The limiting frame is provided with a limiting hole. The diameter of the limiting hole is larger than the diameter of the limiting column and smaller than the diameter of the limiting plug. A notch capable of engaging with the edge of the limiting hole is provided at the end of the limiting column.

2. The milling machine according to claim 1, characterized in that, a rolling bearing and a retaining ring located outside the rolling bearing are installed between the rotating column and the fixed seat.

3. The milling machine according to claim 2, characterized in that, rotating limiting holes arranged in a circumferential direction are provided on the rotating column. A indexing pin is installed on the fixed seat. The indexing pin can penetrate the fixed seat and be clamped in the rotating limiting holes.

4. The milling machine according to claim 2, characterized in that, a limiting plate is installed inside the rotating arm through bolts. One end of the limiting plate can be inserted into the upper cylinder.

5. The milling machine according to claim 1, characterized in that, it further includes a front armrest. The front armrest includes a bottom plate, an armrest frame fixedly connected to the bottom plate, and a flipping seat rotatably connected to the armrest frame. Sliders are installed at the bottom of the bottom plate. Slide rails slidably matched with the sliders are installed on the vehicle frame. A limiting groove is provided on the bottom plate. The length of the limiting groove is the same as the moving stroke of the bottom plate. A fixing column penetrating the limiting groove is provided on the vehicle frame.

6. The milling machine according to claim 5, characterized in that, the front armrest further includes a pin assembly. The pin assembly includes a limiting angle plate fixed to the side of the armrest frame, a fixed angle plate fixed to the vehicle frame, and a spring pin connecting the limiting angle plate and the fixed angle plate. The spring pin includes a limiting sleeve connected to the fixed angle plate, a pin penetrating the limiting sleeve, and a spring connecting between the end of the pin and the limiting sleeve. A pin slot matched with the pin is provided on the limiting angle plate.

7. The milling machine according to claim 1, characterized in that, it further includes a rear armrest. An installation column is rotatably connected to the rear armrest. The installation column is fixed to the vehicle frame.

8. The milling machine according to claim 7, characterized in that, a limiting disc is provided on the installation column. Two clamping openings are provided on the limiting disc. A clamping block is provided on one side of the rear armrest close to the installation column. When the rear armrest is opened and closed, the clamping block is respectively clamped in the two clamping openings.

9. The milling machine according to claim 1, characterized in that, It further includes a climbing ladder, and the climbing ladder includes a first-stage climbing ladder and a second-stage climbing ladder which are rotatably connected by a second pin shaft. The second-stage climbing ladder is fixed to the vehicle frame. The first-stage climbing ladder is provided with a long pin hole for accommodating the sliding rotation of the pin shaft. The second-stage climbing ladder is provided with a rubber stopper, and when the first-stage climbing ladder is unfolded, it abuts against the rubber stopper.

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