Anti-rotation positioning structure for planetary mechanism of side arm of high-end coal mining equipment

Abstract

The utility model relates to an anti-rotation positioning structure of a planetary mechanism of a side arm of high-end coal mining equipment, and belongs to the technical field of auxiliary equipment of coal mining machines. Comprising an inner gear ring, a positioning outer gear and a positioning block, the positioning outer gear is meshed with the inner gear ring, a receding groove is formed in the positioning outer gear, and the positioning block is inserted into the receding groove. By means of the design of the positioning block and the receding groove, the positioning block is embedded into the receding groove and attached to the step of the positioning outer gear, the positioning block is used for preventing the positioning outer gear from rotating, and therefore a traditional positioning pin structure is replaced, positioning stability and reliability are improved, and equipment faults caused by breakage of a positioning pin are prevented; and the working efficiency and the safety of the coal mining machine are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a high -end coal mining equipment side arm planetary mechanism anti -rotation positioning structure belongs to coal -winning machine auxiliary equipment technical field. BACKGROUND

[0002] The planetary reducer of the coal mining machine is a core component of power transmission, and bears the output of the high-speed, low-torque motor into low-speed, high-torque driving power. The planetary reducer of the coal mining machine plays a role in speed reduction and torque transmission. At present, the positioning and anti-rotation of most planetary reducers are achieved by connecting the inner gear ring and the positioning outer gear through the positioning pin. The positioning pin is subjected to shear force to prevent the rotation of the inner gear ring and the positioning outer gear, which causes the positioning pin to be prone to breakage. In the prior art, the utility model patent authorization announcement number CN 220727010U discloses a heavy-load high-power coal mining machine planetary mechanism self-positioning anti-rotation structure. The positioning pin is arranged between the bearing seat one and the traction part shell, and the bearing seat one and the first-stage inner gear ring, the bearing seat two and the first-stage inner gear ring, and the second-stage inner gear ring and the bearing seat two are all meshed with each other. The position of the bearing seat one can be fixed through the positioning pin and the traction part shell, and the whole planetary mechanism and the bearing seat one can be positioned and anti-rotated through layer-by-layer meshing. Once the positioning pin breaks, the planetary reducer of the coal mining machine will malfunction, directly affecting the coal mining efficiency, causing huge economic losses, and even endangering the safety in production. UTILITY MODEL CONTENTS

[0003] To solve the problems in the prior art, the utility model aims to provide an anti-rotation positioning structure for a planetary mechanism of a coal mining machine. By using the design of the positioning block and the accommodation slot, the positioning block is embedded in the accommodation slot and fits the step of the positioning outer gear. The positioning block is used to prevent the rotation of the positioning outer gear, which replaces the traditional positioning pin structure to improve the stability and reliability of positioning, prevents equipment failure caused by the breakage of the positioning pin, and improves the working efficiency and safety of the coal mining machine.

[0004] The utility model adopts the technical scheme of a high-end coal mining equipment side arm planetary mechanism anti-rotation positioning structure, which comprises an inner gear ring, a positioning outer gear and a positioning block. The positioning outer gear is meshed with the inner gear ring. The positioning outer gear is provided with an accommodation slot. The positioning block is inserted into the accommodation slot.

[0005] Further, the plurality of accommodation slots are distributed at intervals on the positioning outer gear.

[0006] Further, the adjacent accommodation slots are arranged at equal intervals.

[0007] Further, the accommodation slot is fixed on the positioning outer gear by a fastener.

[0008] Further, the fastener is a pin.

[0009] Further, the letting slot is semicircular in shape.

[0010] The utility model discloses a high -end coal mining equipment side arm planet mechanism anti -rotation positioning structure, its beneficial effect is that the traditional positioning pin connection mode is based on its shearing connection characteristic, and the ability of bearing torque is limited.

[0011] When high torque is borne, the positioning pin is affected by shearing force, and is easy to break in long -term operation, resulting in positioning failure. Compared with the prior art, the positioning block is embedded in the letting slot, the rotation of the positioning outer gear is prevented, and the accurate positioning and anti -rotation effect of the positioning outer gear are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be simply introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0013] Figure 1 As shown is the structure section schematic view of the embodiment 1 of the utility model;

[0014] Figure 2 As shown is Figure 1 The top view schematic diagram of the positioning outer gear and the positioning block.

[0015] As shown in the drawing: 1, inner tooth ring;2, positioning outer gear;3, positioning block;4, fastener;5, planet carrier;6, letting slot;7, step. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantage of the embodiment of the utility model more clear, 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, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. The description of at least one exemplary embodiment is actually only illustrative, and is by no means any limitation on the utility model and its application or use. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0017] In order to further understand the content of the utility model, the technical scheme will be further described below in conjunction with the specific embodiment.

[0018] Embodiment 1: as Figures 1-2As shown, the embodiment provides a high-end coal mining equipment side arm planetary mechanism anti-rotation positioning structure, comprising an inner gear ring 1, a positioning outer gear 2 and a positioning block 3, the upper surface of the positioning outer gear 2 is provided with a step 7, the positioning outer gear 2 is engaged with the inner gear ring 1 and installed on the planetary carrier 5, the positioning outer gear 2 is provided with four accommodation grooves 6, the adjacent accommodation grooves 6 are arranged at equal intervals, the accommodation groove 6 is semicircular in shape, and one positioning block 3 is placed in each accommodation groove 6, the positioning block 3 is also semicircular in shape, and the size of the positioning block 3 is slightly smaller than that of the accommodation groove 6, so that the positioning block 3 can be placed in the accommodation groove 6, and when the positioning block 3 is located at the accommodation groove 6, the positioning block 3 is attached to the step 7, the positioning block 3 is embedded in the accommodation groove 6 to prevent the rotation of the positioning outer gear 2, and the rotation of the positioning outer gear 2 under high torque load is prevented.

[0019] Embodiment 2: as Figures 1-2 shown, on the basis of embodiment 1, the accommodation groove 6 is also provided with a through hole, and the fastener 4 passes through the through hole to fix the positioning block 3 on the positioning outer gear 2. In this embodiment, the fastener 4 is a pin.

[0020] The utility model discloses a plurality of accommodation grooves 6 are set up on the positioning outer gear 2, and the positioning block 3 is placed in the accommodation groove 6, and the rotation of the positioning outer gear 2 is prevented by the positioning block 3, which avoids the breakage of the positioning pin caused by shear force, thereby achieving the purpose of improving the positioning stability.

[0021] The design that the positioning outer gear 2 is provided with the step 7 provides the necessary structural basis for the installation of the subsequent positioning block 3. The accommodation groove 6 provides a space for the positioning block 3, which ensures the effective contact between the positioning block 3 and the step 7.

[0022] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical scheme of the utility model, but not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the utility model.

Claims

1. A high-end coal mining equipment side arm planetary mechanism anti-rotation positioning structure, characterized in that, The positioning gear includes an inner ring (1), a positioning outer gear (2) and a positioning block (3), the positioning outer gear (2) is engaged with the inner ring (1), the positioning outer gear (2) is provided with a clearance slot (6), the positioning block (3) is inserted into the clearance slot (6), and the upper surface of the positioning outer gear (2) is provided with a step (7), and the positioning block (3) is attached to the step (7).

2. The anti-rotation positioning structure of a side arm planetary mechanism of high-end coal mining equipment according to claim 1, characterized in that, A plurality of clearance slots (6) are distributed at intervals on the positioning outer gear (2).

3. The anti-rotation positioning structure of a side arm planetary mechanism of high-end coal mining equipment according to claim 2, characterized in that, Adjacent clearance slots (6) are arranged at equal intervals.

4. The anti-rotation positioning structure of a side arm planetary mechanism of high-end coal mining equipment according to claim 1, characterized in that, The clearance slot (6) is fixed on the positioning outer gear (2) through a fastener (4).

5. The high-end coal mining equipment side arm planetary mechanism anti-rotation positioning structure according to claim 4, characterized in that, The fastener (4) is a pin.

6. The anti-rotation positioning structure of a side arm planetary mechanism of high-end coal mining equipment according to any one of claims 1, 2 or 4, characterized in that, The clearance slot (6) is semicircular in shape.

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