Disc hub gear mounting structure

Abstract

The utility model discloses a disc hub gear mounting structure which comprises a disc hub gear, a clutch shaft is sleeved with the disc hub gear, the disc hub gear and the clutch shaft are connected through a lining and a composite copper sleeve which are coaxially arranged, and the lining is rotationally mounted in the composite copper sleeve; the lining is fixedly arranged on the clutch shaft in a sleeving mode, and the composite copper sleeve is fixedly installed in the disc hub gear. The length of the lining is larger than the length of the composite copper sleeve and the positioning thickness of the disc hub gear, a first abrasion-resistant gasket is arranged at the inner end of the lining, a gap is formed between the first abrasion-resistant gasket and the disc hub gear, a second abrasion-resistant gasket and a spacer bush are sequentially arranged at the outer end of the lining, and a gap is formed between the second abrasion-resistant gasket and the disc hub gear. According to the disc hub gear mounting structure provided by the utility model, ball bearings arranged side by side in the prior art can be replaced by the bushing and the composite copper sleeve which are coaxially arranged, so that the cost is lower, the mounting process is more convenient, the bearing capacity is larger, and the stability is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to a disc hub gear installation structure belongs to gear installation technical field. BACKGROUND

[0002] The action of the speed changer is to distribute the torque and rotation speed output by the engine to each driving system reasonably, so as to provide sufficient traction and speed to meet various working conditions of the vehicle, and at the same time, keep the engine in the range of high efficiency.

[0003] Patent No. CN202321602302.7 discloses a hydraulic transmission gearbox for engineering machinery, comprising a transmission gearbox body, a forward gear clutch shaft, a reverse gear clutch shaft, an intermediate shaft, a rear drive output shaft and a front drive output shaft are rotatably installed inside the transmission gearbox body, the forward gear clutch shaft and the reverse gear clutch shaft are both provided with disc hub gears for power transmission.

[0004] The disc hub gear installation structure in the prior art is shown in the accompanying drawings, which comprises a disc hub gear 2, the disc hub gear 2 is sleeved on the clutch shaft 1, and the disc hub gear 2 and the clutch shaft 1 are connected through the side-by-side arranged ball bearings 12. Figure 1

[0005] In the prior art, the disc hub gear is rotatably installed through the side-by-side arranged ball bearings, the cost of the ball bearings is high, the installation process is relatively complicated, and the carrying capacity is small, and when the load is too large, the ball bearings will be broken, and once broken, the whole needs to be replaced.

[0006] From the above, it can be seen that the prior art has obvious inconvenience and defects in actual use, and therefore needs to be improved. INVENTION CONTENTS

[0007] In view of the deficiencies in the background art, the utility model provides a disc hub gear installation structure which can replace the side-by-side arranged ball bearings in the prior art with coaxially arranged bushings and composite copper sleeves, so that the cost is lower, the installation process is more convenient, the carrying capacity is larger, and the stability is better.

[0008] To solve the above technical problems, the utility model adopts the following technical scheme:

[0009] A disc hub gear installation structure, comprising a disc hub gear, the disc hub gear is sleeved on a clutch shaft, the disc hub gear and the clutch shaft are connected through coaxially arranged bushings and composite copper sleeves, the bushings are rotatably installed inside the composite copper sleeves;

[0010] The bushings are fixedly sleeved on the clutch shaft, and the composite copper sleeves are fixedly installed inside the disc hub gear; the length of the bushings is greater than the length of the composite copper sleeves and the positioning thickness of the disc hub gear.

[0011] ​Furthermore, a first wear-resistant washer is provided on the inner end portion of the bushing, and a gap is provided between the first wear-resistant washer and the disc hub gear.

[0012] Furthermore, a second wear-resistant washer and a spacer are sequentially provided on the outer end portion of the bushing, and a gap is provided between the second wear-resistant washer and the disc hub gear.

[0013] Furthermore, the first wear-resistant washer, the second wear-resistant washer and the spacer are all sleeved on the main body of the clutch shaft.

[0014] Furthermore, the second wear-resistant washer and the spacer can be either a separate structure or an integrated structure.

[0015] Furthermore, the thickness of the first wear-resistant washer and the second wear-resistant washer are both greater than or equal to 2 mm.

[0016] Furthermore, a plurality of lubricating oil holes A distributed in a circumferential manner are opened in the middle of the bushing, and a plurality of lubricating oil holes B distributed in a circumferential manner are opened on the composite copper sleeve, and the positions of the lubricating oil holes A and the lubricating oil holes B are adapted to each other.

[0017] Furthermore, a lubricating oil channel A is provided inside the clutch shaft, and the lubricating oil is injected from the lubricating oil channel A into the lubricating oil hole A and the lubricating oil hole B in sequence.

[0018] Furthermore, a lubrication annular groove is provided inside the disc hub gear, and the annular groove is adapted to the position of the lubricating oil hole B.

[0019] Furthermore, a plurality of lubricating oil channels B are provided on the disk hub gear. The center lines of the lubricating oil channels B are arranged at a certain angle to the axis of the disk hub gear, and the lubricating oil channels B are connected to the annular groove.

[0020] Compared with the prior art, the present invention has the following advantages after adopting the above technical solution:

[0021] The utility model utilizes a coaxially arranged bushing and a composite copper sleeve to realize rotational connection between the disc hub gear and the clutch shaft, replacing the ball bearings arranged side by side in the prior art, so that the disc hub gear installation structure has lower cost and a more convenient installation process, has a larger load-bearing capacity, is not easy to damage, and has better stability; after wear, only the composite copper sleeve needs to be replaced.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the disk hub gear installation structure in the prior art;

[0024] Figure 2 It is a structural diagram of the utility model;

[0025] Figure 3 is a structural schematic view of the disc hub gear.

[0026] In the figure, 1 is a clutch shaft, 2 is a disc hub gear, 3 is a bushing, 4 is a composite copper sleeve, 5 is a lubricating oil hole A, 6 is a lubricating oil hole B, 7 is a lubricating oil channel A, 8 is a lubricating oil channel B, 9 is a first wear-resistant washer, 10 is a second wear-resistant washer, 11 is a spacer sleeve, and 12 is a ball bearing. DETAILED DESCRIPTION

[0027] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific embodiments of the present application will be described with reference to the accompanying drawings.

[0028] As shown in Figure 1 The prior art disc hub gear mounting structure includes a disc hub gear 2, the disc hub gear 2 is sleeved on a clutch shaft 1, the disc hub gear 2 and the clutch shaft 1 are connected through a ball bearing 12 arranged side by side, and a snap spring is installed at the end of the ball bearing 12.

[0029] As shown in Figure 2 and Figure 3 The present application provides a disc hub gear mounting structure, which includes a disc hub gear 2, the disc hub gear 2 is sleeved on a clutch shaft 1, the disc hub gear 2 and the clutch shaft 1 are connected through a bushing 3 and a composite copper sleeve 4 arranged coaxially, and the bushing 3 is rotatably installed inside the composite copper sleeve 4.

[0030] The bushing 3 is fixedly sleeved on the clutch shaft 1, and the bushing 3 rotates synchronously with the clutch shaft 1.

[0031] The composite copper sleeve 4 is fixedly installed inside the disc hub gear 2, and the composite copper sleeve 4 rotates synchronously with the disc hub gear 2.

[0032] The length of the bushing 3 is greater than the length of the composite copper sleeve 4 and the positioning thickness of the disc hub gear 2.

[0033] A first wear-resistant washer 9 is arranged on the inner end of the bushing 3, and there is a gap with a certain width between the first wear-resistant washer 9 and the disc hub gear 2.

[0034] A second wear-resistant washer 10 and a spacer sleeve 11 are sequentially arranged on the outer end of the bushing 3, and there is a gap with a certain width between the second wear-resistant washer 10 and the disc hub gear 2.

[0035] The second wear-resistant washer 10 and the spacer sleeve 11 can be a split structure or an integral structure.

[0036] The first wear-resistant washer 9, the second wear-resistant washer 10 and the spacer sleeve 11 are all sleeved on the main body of the clutch shaft 1.

[0037] The thickness of the first wear-resistant washer 9 and the second wear-resistant washer 10 is greater than or equal to 2mm.

[0038] The middle part of the bushing 3 is provided with a plurality of lubricating oil holes A5 distributed in a circle, and the composite copper sleeve 4 is provided with a plurality of lubricating oil holes B6 distributed in a circle.

[0039] The clutch shaft 1 is internally provided with a lubricating oil channel A7, and the lubricating oil is sequentially injected into the lubricating oil holes A5 and the lubricating oil holes B6 from the lubricating oil channel A7.

[0040] The disc hub gear 2 is internally provided with an annular groove for lubrication, and the annular groove is adapted to the position of the lubricating oil holes B6. The disc hub gear 2 is provided with a plurality of lubricating oil channels B8, the center line of the lubricating oil channels B8 is arranged at a certain angle with the axis of the disc hub gear 2, and the lubricating oil channels B8 are arranged in communication with the annular groove, and the lubricating oil channels B8 are used for oil return.

[0041] The specific working principle of the utility model is as follows:

[0042] The utility model utilizes the coaxial bushing 3 and the composite copper sleeve 4 to realize the rotation connection of the disc hub gear 2 and the clutch shaft 1, replaces the parallelly arranged ball bearing 12 in the prior art, so that the disc hub gear mounting structure has lower cost, the installation process is more convenient, the bearing capacity is larger, the disc hub gear is not easy to be damaged, and the stability is better; after wear, only the composite copper sleeve 4 needs to be replaced.

[0043] The above is an example of the best implementation mode of the utility model, wherein the parts not described in detail are the common knowledge of those skilled in the art. The protection scope of the utility model is subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A disc hub gear mounting structure characterised in that: The disc hub gear (2) is sleeved on the clutch shaft (1), the disc hub gear (2) and the clutch shaft (1) are connected via a coaxially arranged bushing (3) and a composite copper sleeve (4), and the bushing (3) is rotatably mounted inside the composite copper sleeve (4); The bushing (3) is fixedly mounted on the clutch shaft (1), and the composite copper sleeve (4) is fixedly mounted inside the disc hub gear (2); the length of the bushing (3) is greater than the length of the composite copper sleeve (4) and the positioning thickness of the disc hub gear (2).

2. A disc hub gear mounting structure as claimed in claim 1, characterised in that: A first wear-resistant washer (9) is provided on the inner end portion of the bushing (3), and a gap is provided between the first wear-resistant washer (9) and the disc hub gear (2).

3. A disc hub gear mounting structure as claimed in claim 2, wherein: A second wear-resistant washer (10) and a spacer (11) are sequentially provided on the outer end portion of the bushing (3), and a gap is provided between the second wear-resistant washer (10) and the disc hub gear (2).

4. A disc hub and gear mounting arrangement according to claim 3, wherein: The first wear-resistant washer (9), the second wear-resistant washer (10) and the spacer (11) are all sleeved on the main body of the clutch shaft (1).

5. A disc hub and gear mounting arrangement as claimed in claim 3, wherein: The second wear-resistant washer (10) and the spacer (11) can be either a separate structure or an integrated structure.

6. A disc hub and gear mounting arrangement as claimed in claim 3, wherein: The thickness of the first wear-resistant washer (9) and the second wear-resistant washer (10) are both greater than or equal to 2 mm.

7. A hub gear mounting structure as claimed in claim 1, wherein: The bushing (3) is provided with a plurality of lubricating oil holes A (5) distributed in a circumferential manner in the middle thereof, and the composite copper sleeve (4) is provided with a plurality of lubricating oil holes B (6) distributed in a circumferential manner, wherein the positions of the lubricating oil holes A (5) and the lubricating oil holes B (6) are adapted to each other.

8. A disc hub and gear mounting arrangement according to claim 7, wherein: A lubricating oil passage A (7) is provided inside the clutch shaft (1), and lubricating oil is sequentially injected from the lubricating oil passage A (7) into the lubricating oil hole A (5) and the lubricating oil hole B (6).

9. A disc hub and gear mounting arrangement according to claim 8, wherein: A lubricating annular groove is provided inside the disc hub gear (2), and the position of the annular groove is adapted to the position of the lubricating oil hole B (6).

10. A disc hub and gear mounting arrangement according to claim 9, wherein: A plurality of lubricating oil passages B (8) are provided on the hub gear (2). The center lines of the lubricating oil passages B (8) are arranged at a certain angle to the axis of the hub gear (2), and the lubricating oil passages B (8) are connected to the annular groove.

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