Novel excavator guide wheel assembly

Abstract

The utility model discloses a novel excavator guide wheel assembly which comprises a split type guide wheel. According to the split type guide wheel, the upper wheel rim is embedded in the upper half portion of the hub, then the lower wheel rim is embedded in the lower half portion of the hub, the upper wheel rim and the lower wheel rim are spliced together in an end-to-end mode, and finally bolts transversely penetrate through the outer installation pieces, the inner installation pieces and the installation holes and are locked and fixed. Compared with a traditional integrated guide wheel, the split type guide wheel has the advantages that the abraded upper wheel ring and the abraded lower wheel ring can be detached and replaced independently, the replacement cost of the split type guide wheel is further reduced, the rubber gaskets are arranged on the inner faces of the upper wheel ring and the lower wheel ring, the rubber gaskets can play a role in filling, and the service life of the upper wheel ring and the lower wheel ring is prolonged. The installation tightness of the upper rim and the lower rim is enhanced, meanwhile, direct contact between the upper rim and the surface of the hub and between the lower rim and the surface of the hub can be reduced, the surface of the hub is not prone to abrasion, and the service life of the hub is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of guide wheel, concretely is a novel excavator guide wheel assembly. BACKGROUND

[0002] The guide wheel is an important component of the walking system of the mine excavator, and the function of the guide wheel is to guide the movement of the track, which, together with the tensioning device, keeps the track at a certain tension and relieves the impact force from the road during forward movement, thereby reducing the vibration of the machine body.

[0003] The existing patent application No. 201921014086.8 self-lubricating guide wheel comprises a guide wheel body, a center hole in the middle of the guide wheel body, a circle of oil storage grooves on the inner wall of the center hole, an oil inlet hole on the guide wheel body, an oil tank fixedly connected to the side surface of the width plate of the guide wheel body, the oil tank being connected to the oil inlet hole through an oil pipe, an oil filling port being formed on the oil tank, and a screw plug being arranged on the oil filling port.

[0004] The above-mentioned patent records the function structure of the guide wheel, and in the actual application process, the guide wheel as a wearing part will cause surface wear during the operation of guiding the track, and when the surface wear of the guide wheel is too large, the guide wheel needs to be replaced to ensure the normal operation of the track system, but the guide wheel in the prior art is usually of an integrated structure, and the guide wheel needs to be replaced as a whole when replacing, which is high in replacement cost and the disassembly and assembly of the guide wheel are also cumbersome, affecting the replacement efficiency, and the structure can be further improved and optimized, and therefore, the high-wear-resistance guide wheel of the mine excavator is proposed to solve the above-mentioned problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a novel excavator guide wheel assembly to solve the problems in the background technology.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme: A novel excavator guide wheel assembly, including split type guide wheel, the split type guide wheel includes wheel hub, connecting seat, mounting hole, upper rim, outer mounting piece, lower rim and inner mounting piece, the wheel hub inner groove front and back two parts symmetry is provided with connecting seat, connecting seat and wheel hub are integrally cast, the connecting seat both ends are throughly provided with mounting hole, the wheel hub upper half part surface is nested with upper rim, the upper rim inboard bottom edge four corners all are provided with outer mounting piece, and outer mounting piece and upper rim are integrally cast, the outer mounting piece is aligned in the connecting seat both sides, the wheel hub lower half part surface is nested with lower rim, and the lower rim and upper rim are closely contacted in the head and tail, the lower rim inboard top edge four corners all are provided with inner mounting piece, and inner mounting piece and lower rim are integrally cast, the inner mounting piece is aligned in the connecting seat both sides, and inner mounting piece is located between outer mounting piece and connecting seat, the connecting seat, outer mounting piece and inner mounting piece adopt bolt and lock and fix laterally.

[0007] Preferably, the upper rim and the lower rim are integrally made of medium-carbon alloy structural steel.

[0008] Preferably, the outer mounting piece and the inner mounting piece have the same shape and thickness, and the thickness is greater than or equal to 4 mm.

[0009] Preferably, the width of the joint gap between the upper rim and the lower rim is not greater than 2 mm.

[0010] Preferably, the inner surfaces of the upper rim and the lower rim are both paved with rubber pads.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a split type guide wheel, the upper rim is embedded on the upper half part of the wheel hub, and the lower rim is embedded on the lower half part of the wheel hub, so that the upper rim and the lower rim are spliced together, and finally the bolt is transversely passed through the outer mounting piece, the inner mounting piece and the mounting hole and locked and fixed, so that the replacement operation of the upper rim and the lower rim can be completed.

[0013] The utility model discloses that rubber pads are arranged on the inner surfaces of the upper rim and the lower rim, the rubber pads can play a filling role, enhance the mounting and fastening property of the upper rim and the lower rim, and reduce the direct contact between the upper rim, the lower rim and the wheel hub surface, so that the wheel hub surface is not easy to be abraded, thereby prolonging the service life of the wheel hub. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic view of the utility model;

[0015] Figure 2 It is the schematic diagram of the split guide wheel structure of the utility model;

[0016] Figure 3 It is the schematic diagram of the upper wheel rim structure of the utility model;

[0017] Figure 4 It is the schematic diagram of the lower wheel rim structure of the utility model;

[0018] Figure 5 It is the schematic diagram of the left view structure of the hub of the utility model.

[0019] In the drawing: split guide wheel-1, hub-11, connecting seat-12, mounting hole-13, upper wheel rim-14, outer mounting piece-15, lower wheel rim-16, inner mounting piece-17, rubber gasket-18. DETAILED DESCRIPTION

[0020] In order to further explain the technical scheme of the utility model, the following specific embodiments are described in detail.

[0021] Please refer to Figures 1-5 The utility model provides a novel excavator guide wheel assembly, including split guide wheel 1, split guide wheel 1 includes hub 11, connecting seat 12, mounting hole 13, upper wheel rim 14, outer mounting piece 15, lower wheel rim 16 and inner mounting piece 17, the connecting seat 12 is symmetrically set up with the hub 11 in the groove front and rear two parts, the connecting seat 12 is integrally cast with the hub 11, the mounting hole 13 is through the setting of the connecting seat 12 left and right two ends, the upper half part surface of hub 11 is nested and is provided with upper wheel rim 14, the inner side bottom edge of upper wheel rim 14 four corners is provided with outer mounting piece 15, and outer mounting piece 15 is integrally cast with upper wheel rim 14, and outer mounting piece 15 is aligned in the left and right sides of connecting seat 12, the lower half part surface of hub 11 is nested and is provided with lower wheel rim 16, wherein the head and tail of lower wheel rim 16 and upper wheel rim 14 are closely contacted, the inner side top edge of lower wheel rim 16 four corners is provided with inner mounting piece 17, and inner mounting piece 17 is integrally cast with lower wheel rim 16, and inner mounting piece 17 is aligned in the left and right sides of connecting seat 12, and inner mounting piece 17 is located between outer mounting piece 15 and connecting seat 12, and connecting seat 12, outer mounting piece 15 and inner mounting piece 17 adopt bolt to be locked and fixed horizontally, and the bolt passes through mounting hole 13 and is locked and fixed together horizontally with connecting seat 12, outer mounting piece 15 and inner mounting piece 17.

[0022] Further, the upper wheel rim 14 and the lower wheel rim 16 are integrally made of medium-carbon alloy structural steel material, which has excellent mechanical properties and wear resistance, ensuring the durability of the upper wheel rim 14 and the lower wheel rim 16.

[0023] Further, the outer mounting piece 15 is consistent with the inner mounting piece 17 in shape and has the same thickness, and the thickness is greater than or equal to 4 mm, so as to ensure the connection strength.

[0024] Further, the width of the joint gap between the upper rim 14 and the lower rim 16 is not greater than 2 mm.

[0025] Further, the inner surfaces of the upper rim 14 and the lower rim 16 are both paved with rubber pads 18, the rubber pads 18 can play a filling role, enhance the mounting fastening of the upper rim 14 and the lower rim 16, and can reduce the direct contact between the upper rim 14, the lower rim 16 and the surface of the hub 11, so that the surface of the hub 11 is not easy to be abraded, thereby prolonging the service life of the hub 11.

[0026] The working principle is as follows:

[0027] The guide wheel is a vulnerable part, and the surface of the guide wheel is abraded during the operation of the guide track. Compared with the traditional integral guide wheel, the split guide wheel 1 can replace the abraded upper rim 14 and lower rim 16 separately. The specific operation mode is as follows: firstly, the bolt connection between the connecting seat 12, the outer mounting piece 15 and the inner mounting piece 17 is released, the upper rim 14 can be detached from the upper half of the hub 11, and the lower rim 16 can be detached from the lower half of the hub 11, then the intact upper rim 14 is embedded in the upper half of the hub 11, and the intact lower rim 16 is embedded in the lower half of the hub 11, so that the upper rim 14 and the lower rim 16 are spliced together, finally, the bolts are transversely threaded through the outer mounting piece 15, the inner mounting piece 17 and the mounting hole 13 and locked and fixed, so that the replacement work of the upper rim 14 and the lower rim 16 is completed, and the upper rim 14 and the lower rim 16 can be replaced separately, thereby reducing the replacement cost of the split guide wheel 1.

[0028] The rubber pads 18 are arranged on the inner surfaces of the upper rim 14 and the lower rim 16, the rubber pads 18 can play a filling role, enhance the mounting fastening of the upper rim 14 and the lower rim 16, and can reduce the direct contact between the upper rim 14, the lower rim 16 and the surface of the hub 11, so that the surface of the hub 11 is not easy to be abraded, thereby prolonging the service life of the hub 11.

[0029] The above only describes preferred examples of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A novel excavator guide wheel assembly characterized by: The application relates to a split guide wheel (1) which comprises a hub (11), a connecting base (12), mounting holes (13), an upper rim (14), an outer mounting piece (15), a lower rim (16) and an inner mounting piece (17), the connecting base (12) is symmetrically arranged in the front and back parts of the inner groove of the hub (11) and is integrally cast with the hub (11), the mounting holes (13) are throughly arranged at the left and right ends of the connecting base (12), the upper rim (14) is nested on the upper half surface of the hub (11), the outer mounting piece (15) is arranged at the inner bottom edge of the four corners of the upper rim (14) and is integrally cast with the upper rim (14), the outer mounting piece (15) is aligned on the left and right sides of the connecting base (12), the lower rim (16) is nested on the lower half surface of the hub (11), the lower rim (16) is tightly contacted with the head and tail of the upper rim (14), the inner mounting piece (17) is arranged at the inner top edge of the four corners of the lower rim (16) and is integrally cast with the lower rim (16), the inner mounting piece (17) is aligned on the left and right sides of the connecting base (12) and is located between the outer mounting piece (15) and the connecting base (12), and the connecting base (12), the outer mounting piece (15) and the inner mounting piece (17) are transversely locked and fixed through bolts.

2. A novel excavator guide wheel assembly as claimed in claim 1, wherein: The upper rim (14) and the lower rim (16) are integrally made of medium-carbon alloy structural steel.

3. A new excavator guide wheel assembly as claimed in claim 1, wherein: The outer mounting piece (15) and the inner mounting piece (17) are consistent in shape and same in thickness, and the thickness is greater than or equal to 4 mm.

4. A new excavator track wheel assembly as claimed in claim 1, wherein: The width of the joint gap between the upper rim (14) and the lower rim (16) is not greater than 2 mm.

5. A novel excavator track wheel assembly as claimed in claim 1, wherein: The inner surfaces of the upper rim (14) and the lower rim (16) are both paved with rubber gaskets (18).

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