Polyurethane track shoe for milling machine

Abstract

The utility model discloses a polyurethane track shoe for a milling machine, which comprises an assembly frame, a bottom plate, a track shoe, a thread limiting component and a clamping component, the thread limiting component is mounted in the bottom plate, and the clamping component is mounted between the bottom plate and the track shoe. When the thread limiting assembly and the clamping assembly are used, the track shoe can be conveniently and rapidly replaced, the bottom plate is arranged between the track shoe and the assembly frame, the bottom plate is fixedly connected with the assembly frame in a threaded mode, the bottom plate is detachably connected with the track shoe, and the dismounting convenience of the bottom plate and the track shoe is far larger than that of a traditional screw rod fixing mode; the replacement efficiency of the track shoe after being heated and softened is optimized to a large extent, the heat-resistant bottom plate is additionally arranged to be connected with the track shoe, the use amount of polyurethane materials of a single track shoe is reduced, and meanwhile the cost for replacing the track shoe at a time is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of track shoe, concretely is a kind of polyurethane track shoe for milling machine. BACKGROUND

[0002] Milling machine is a kind of engineering machinery for road maintenance, reconstruction and removal asphalt or concrete surface layer, is widely used in highway, airport, municipal etc. Scene. Its core function is to break, mill the road surface by high-speed rotating milling drum (equipped with hard cutter), realizes old road surface demolition, leveling or texture repair.

[0003] The track system of milling machine directly influences its ground pressure, tractive force and ground protection, polyurethane (PU) track shoe is a kind of high-performance non-metallic accessory, gradually replaces traditional rubber or steel track shoe, especially suitable for the occasion with high ground protection requirement.

[0004] When milling machine carries out road operation under the support of polyurethane track shoe, due to the existence of objective factors such as construction period, it cannot completely wait for asphalt solidification before carrying out road operation, and the upper limit of temperature resistance of polyurethane is usually 80-100 DEG C, while the temperature of newly-paved asphalt pavement can reach 140-160 DEG C, long-time contact can cause the surface of track shoe to soften, accelerate wear, the existing scheme improves the short-term temperature resistance of polyurethane track shoe to 120 DEG C by adding ceramic micro powder, carbon fiber and other fillers, or installs spraying device near track shoe to increase heat dissipation effect, but the above methods cannot completely avoid the softening of polyurethane track shoe under heat, and track shoe is usually fixed with milling machine through screw assembly, so that the disassembly and replacement of track shoe are not convenient enough, affect the replacement efficiency of track shoe and road operation efficiency. For this reason, a polyurethane track shoe for milling machine is provided. SUMMARY

[0005] The utility model aims at providing a kind of polyurethane track shoe for milling machine, to solve the problem that the existing scheme is added ceramic micro powder, carbon fiber and other fillers, short-term temperature resistance of polyurethane track shoe is improved to 120 DEG C, or spraying device is installed near track shoe to increase heat dissipation effect, but the above methods cannot completely avoid the softening of polyurethane track shoe under heat, and track shoe is usually fixed with milling machine through screw assembly, so that the disassembly and replacement of track shoe are not convenient enough, affect the replacement efficiency of track shoe and road operation efficiency.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] The utility model provides a polyurethane track shoe for milling planer, including assembly frame, bottom plate, track shoe, still include threaded limiting assembly and joint assembly, threaded limiting assembly installs inside the bottom plate, joint assembly installs between the bottom plate and track shoe, threaded limiting assembly and joint assembly are convenient for the quick replacement of track shoe when using.

[0008] Preferably, the threaded limiting assembly includes a hex head, a threaded rod, a connecting rod, and a boss, the bottom plate side is inserted with the connecting rod, one end of the connecting rod is fixedly connected with the threaded rod, the other end of the connecting rod is provided with the boss, and the threaded rod away from the connecting rod is provided with the hex head.

[0009] Preferably, the joint assembly includes a threaded groove, a round hole, a rectangular groove, and a clamping groove, the top of the bottom plate is provided with two symmetrical rectangular grooves, one side of the inner wall of the two rectangular grooves is provided with the clamping groove, the other side of the inner wall of the rectangular groove is provided with the round hole, the surface of the bottom plate is provided with the threaded groove, and the threaded groove is communicated with the round hole.

[0010] Preferably, the clamping groove is matched with the boss.

[0011] Preferably, the round hole is matched with the connecting rod.

[0012] Preferably, the threaded groove is matched with the threaded rod.

[0013] Preferably, the bottom of the track shoe is fixedly connected with a rectangular block, the rectangular block is matched with the rectangular groove, the side of the rectangular block is provided with a through hole, and the connecting rod is arranged in the through hole.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1、The utility model discloses a polyurethane track shoe for milling planer, including assembly frame, bottom plate, track shoe, still include threaded limiting assembly and joint assembly, threaded limiting assembly installs inside the bottom plate, joint assembly installs between the bottom plate and track shoe, threaded limiting assembly and joint assembly are convenient for the quick replacement of track shoe when using.

[0016] 2、The utility model discloses a polyurethane track shoe for milling planer, including assembly frame, bottom plate, track shoe, still include threaded limiting assembly and joint assembly, threaded limiting assembly installs inside the bottom plate, joint assembly installs between the bottom plate and track shoe, threaded limiting assembly and joint assembly are convenient for the quick replacement of track shoe when using. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the embodiment of the utility model;

[0018] Figure 2 It is the whole disassembly schematic diagram of the embodiment of the utility model;

[0019] Figure 3 It is the structure schematic diagram of the screw limiting assembly of the embodiment of the utility model;

[0020] Figure 4 It is the bottom plate structure schematic diagram of the embodiment of the utility model;

[0021] Figure 5 It is the track shoe bottom structure schematic diagram of the embodiment of the utility model.

[0022] In the drawing: 1, assembly frame;2, bottom plate;3, screw limiting assembly;301, hex head;302, screw;303, connecting rod;304, boss;4, track shoe;5, clamping assembly;501, screw groove;502, round hole;503, rectangular groove;504, clamping groove;6, rectangular block;7, through hole. DETAILED DESCRIPTION

[0023] In order to facilitate the problem to be solved, the embodiment of the utility model provides a kind of polyurethane track shoe for milling machine. The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, apparently, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the scope of the utility model protection.

[0024] EMBODIMENT

[0025] As Figures 1 to 5As shown, the embodiment provides a polyurethane track shoe for milling machine, which comprises an assembly frame 1, a bottom plate 2, a track shoe 4, the bottom plate 2 is installed on the surface of the assembly frame 1, the track shoe 4 is installed on the surface of the bottom plate 2, the bottom plate 2 is selected from a material more resistant to heat than polyurethane material, such as fiber reinforced composite material (such as nylon + glass fiber / carbon fiber), the surface of the assembly frame 1 is provided with a sawtooth groove, the bottom of the bottom plate 2 is attached to the surface of the assembly frame 1, and then when the assembly frame 1 is attached to the bottom plate 2, the contact area between the bottom plate 2 and the assembly frame 1 is increased under the action of the sawtooth groove, and the dislocation of the bottom plate 2 and the assembly frame 1 is effectively prevented, the track shoe 4 is made of polyurethane material, since the wear resistance of polyurethane is far superior to rubber and metal, when the track shoe 4 made of polyurethane material is in direct contact with the ground, the abrasion caused by friction can be greatly reduced, the service life is prolonged, and the replacement frequency is reduced, at the same time, polyurethane has high elasticity and high hardness (different hardness is achieved by adjusting the formula), can effectively absorb impact energy, when applied to the track shoe 4, the track shoe 4 can reduce the risk of fracture caused by impact in heavy load or rugged terrain, at the same time, the internal structure of the equipment is protected, the operation stability is improved, and the track shoe 4 is further provided with a threaded limiting assembly 3 and a clamping assembly 5, the threaded limiting assembly 3 is installed in the bottom plate 2, the clamping assembly 5 is installed between the bottom plate 2 and the track shoe 4, and the threaded limiting assembly 3 and the clamping assembly 5 are used to facilitate quick replacement of the track shoe 4;

[0026] With reference to Figures 1 to 3 As an embodiment of the utility model, specifically, the threaded limiting assembly 3 comprises a hexagonal head 301, a screw rod 302, a connecting rod 303 and a boss 304, the connecting rod 303 is inserted into the side surface of the bottom plate 2, one end of the connecting rod 303 is fixedly connected with the screw rod 302, the other end of the connecting rod 303 is provided with the boss 304, and one end of the screw rod 302 away from the connecting rod 303 is provided with the hexagonal head 301. The connecting rod 303 penetrates the bottom plate 2 to fix the track shoe 4, the screw rod 302 is tightly attached to the threaded groove 501 on the surface of the bottom plate 2 when the connecting rod 303 is completely inserted into the bottom plate 2, the screw rod 302 is rotated by rotating the hexagonal head 301, the screw rod 302 is rotated into the bottom plate 2, and at the same time, the connecting rod 303 continues to enter the bottom plate 2 until the boss 304 at the other end of the connecting rod 303 is completely connected with the clamping groove 504 in the bottom plate 2, thereby fixing the track shoe 4 on the surface of the bottom plate 2. By using the short screw rod 302 and the long connecting rod 303 together, the supporting strength and stability are ensured, the assembly and disassembly time of the threaded limiting assembly 3 is reduced, and the track shoe 4 can be quickly disassembled and replaced.

[0027] With reference to Figure 2 And Figure 4, as an embodiment of the utility model, specifically, the clamping assembly 5 includes screw groove 501, round hole 502, rectangular groove 503 and clamping groove 504, the top of bottom plate 2 is provided with two symmetrical rectangular grooves 503, the inner wall of two rectangular grooves 503 is provided with clamping groove 504 on one side, the inner wall of rectangular groove 503 is provided with round hole 502 on the other side, the surface of bottom plate 2 is provided with screw groove 501, screw groove 501 is communicated with round hole 502, clamping groove 504 is connected with boss 304, round hole 502 is connected with connecting rod 303, screw groove 501 is connected with screw rod 302, through the clamping of rectangular block 6 at the bottom of track shoe 4 and the rectangular groove 503 on the surface of bottom plate 2, and the communication of screw groove 501 and round hole 502, the connecting of clamping groove 504 and boss 304, the connecting of round hole 502 and connecting rod 303, the connecting of screw groove 501 and screw rod 302, connecting rod 303 is penetrated through screw groove 501, round hole 502 and through hole 7, with the movement of connecting rod 303, screw rod 302 at one end of connecting rod 303 moves to the position of screw groove 501, then through the rotation of hexagonal head 301, screw rod 302 is rotated to drive connecting rod 303 to continue moving, finally, boss 304 at the other end of connecting rod 303 is clamped in clamping groove 504, and the fixing of track shoe 4 on the surface of bottom plate 2 is completed.

[0028] Referring to Figure 1 , Figure 2 and Figure 5 , as an embodiment of the utility model, specifically, the bottom of track shoe 4 is fixedly connected with rectangular block 6, the rectangular block 6 is connected with rectangular groove 503, the side of rectangular block 6 is provided with through hole 7, connecting rod 303 is arranged in through hole 7, rectangular block 6 is arranged at the bottom of track shoe 4 and is used in cooperation with the rectangular groove 503 at the top of bottom plate 2, when track shoe 4 is assembled with bottom plate 2, rectangular block 6 is clamped in rectangular groove 503, when connecting rod 303 is inserted in the side of bottom plate 2, connecting rod 303 is penetrated through round hole 502 in bottom plate 2 and through hole 7 in rectangular block 6, the fixing of rectangular block 6 and rectangular groove 503 is realized, track shoe 4 is conveniently fixed on the surface of bottom plate 2, and track shoe 4 can be disassembled by disassembling connecting rod 303, so that track shoe 4 is conveniently replaced.

[0029] Working principle: first, bottom plate 2 is fixedly screwed with assembly frame 1, then track shoe 4 is assembled at the top of bottom plate 2, and then threaded limiting assembly 3 is inserted in the inside of bottom plate 2, so that the connection between track shoe 4 and bottom plate 2 is fixed, and track shoe 4 can be disassembled from the top of bottom plate 2 by disassembling threaded limiting assembly 3, so that track shoe 4 is conveniently replaced;

[0030] Specifically, first, the threaded rod at the bottom of the bottom plate 2 is aligned with the hole position inside the assembly frame 1, then fixed by means of the nut, then the rectangular block 6 at the bottom of the track plate 4 is aligned with the rectangular groove 503 on the surface of the bottom plate 2, then the boss 304 of the threaded limiting assembly 3 is inserted into the bottom plate 2 from the threaded groove 501 on the side of the bottom plate 2, and penetrates the round hole 502 and the through hole 7 on the side of the rectangular block 6, when the threaded rod 302 of the threaded limiting assembly 3 is in the position of the threaded groove 501, turn the hexagonal head 301 to drive the threaded rod 302 into the threaded groove 501, until the boss 304 is completely connected with the clamping groove 504, the fixation of the track plate 4 on the surface of the bottom plate 2 is completed, when it is necessary to disassemble and replace the track plate 4, reverse the hexagonal head 301 to drive the threaded rod 302 to rotate out of the threaded groove 501, then the connecting rod 303 can be pulled out, and the track plate 4 can be separated from the bottom plate 2 for replacement.

[0031] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and range of equivalents of the elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0032] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A polyurethane track pad for a milling machine comprising an assembly frame (1), a base plate (2), a track pad (4), characterized in that: Also include threaded limiting assembly (3) and clamping assembly (5), the threaded limiting assembly (3) is installed inside the bottom plate (2), the clamping assembly (5) is installed between the bottom plate (2) and the track shoe (4), the threaded limiting assembly (3) and the clamping assembly (5) are used to facilitate the quick replacement of the track shoe (4).

2. A polyurethane track pad for a milling machine according to claim 1, characterized in that: The threaded limiting assembly (3) includes a hex head (301), a screw rod (302), a connecting rod (303) and a boss (304), the bottom plate (2) side is inserted with a connecting rod (303), one end of the connecting rod (303) is fixedly connected with a screw rod (302), the other end of the connecting rod (303) is provided with a boss (304), and the screw rod (302) is provided with a hex head (301) away from the connecting rod (303).

3. A polyurethane track pad for a milling machine according to claim 2, characterized in that: The clamping assembly (5) includes a threaded groove (501), a round hole (502), a rectangular groove (503) and a clamping groove (504), the top of the bottom plate (2) is provided with two symmetrical rectangular grooves (503), the inner wall of the two rectangular grooves (503) is provided with a clamping groove (504) on one side, the inner wall of the rectangular groove (503) is provided with a round hole (502) on the other side, and the surface of the bottom plate (2) is provided with a threaded groove (501), the threaded groove (501) is in communication with the round hole (502).

4. A polyurethane track pad for a milling machine according to claim 3, characterized in that: The clamping groove (504) is connected with the boss (304).

5. A polyurethane track pad for a milling machine according to claim 3, characterized in that: The round hole (502) is connected with the connecting rod (303).

6. A polyurethane track pad for a milling machine according to claim 3, characterized in that: The threaded groove (501) is connected with the screw rod (302).

7. A polyurethane track pad for a milling machine according to claim 1, characterized in that: The bottom of the track shoe (4) is fixedly connected with a rectangular block (6), the rectangular block (6) is connected with the rectangular groove (503), the side of the rectangular block (6) is provided with a through hole (7), and the connecting rod (303) penetrates through the through hole (7).

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