Magnet fixing device at bottom of gearbox

Abstract

The utility model discloses a magnet fixing device at the bottom of a gearbox, which comprises an oil pan fixed at the bottom of the gearbox, a magnet is fixedly arranged at the upper part of the oil pan, and a pair of symmetrically distributed L-shaped clamping jaws are arranged at the upper part of the oil pan at the outer edge of the magnet. The inner walls of the upper ends of the L-shaped clamping jaws make contact with the outer walls of the magnets. A baffle is arranged on the upper portion of the oil pan located on the outer edge of the magnet. The magnet is fixed to the oil pan, the two L-shaped clamping jaws are designed on the oil pan, the freedom degrees of the magnet in four directions are limited through the two L-shaped clamping jaws, in addition, a baffle is designed on the right side of the magnet to limit rightward translation of the magnet, after the oil pan and the gearbox are assembled into a whole, the side wall of the gearbox can limit leftward translation of the magnet, and therefore the oil pan and the gearbox are assembled into a whole. The six degrees of freedom of the magnet are all limited, so that the magnet can be effectively prevented from falling off and falling off, and the technical problem that in the prior art, a bottom magnet of a gearbox assembly is prone to falling off is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle technical field relates to a fixing device, specifically is a magnet fixing device of gearbox bottom. BACKGROUND

[0002] It is known that heavy truck gearbox assembly product because the part cleanliness or the running wear and so on, in the use process can produce a large amount of iron filings, these iron filings if mix into lubricating oil and carry out the circulation lubrication to gearbox gear, bearing and so on Part, will lead to gearbox in the running process appear abnormal sound;And can accelerate the gear, bearing wear and lead to gearbox assembly early failure;If mix into sealing component, still can lead to sealing system failure. Therefore, in the gearbox, generally will implant magnet, for adsorbing the iron filings in the running process.

[0003] In order to facilitate adsorption of iron filings, magnet is generally located at the bottom of gearbox assembly, is fixed on the gearbox shell by bonding etc. This has higher requirements for bonding glue and bonding process, and needs to be placed for a certain period of time after bonding is completed to be gelled, which affects production rhythm. In addition, even if high-quality bonding glue and bonding process are used, the magnet also has the risk of falling off under extreme conditions. Once the magnet falls off, it not only cannot effectively adsorb iron filings, but also affects the normal operation of the gearbox assembly, leading to early failure of the gearbox assembly, with serious consequences. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a magnet fixing device at the bottom of a gearbox to solve the technical problem of easy falling of the magnet at the bottom of the gearbox assembly in the prior art.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions to achieve:

[0006] A magnet fixing device at the bottom of a gearbox, comprising an oil pan fixed at the bottom of the gearbox, a magnet fixed on the upper part of the oil pan, a pair of symmetrically distributed L-shaped claws provided on the upper part of the oil pan outside the magnet, and the inner wall of the upper end of the L-shaped claw in contact with the outer wall of the magnet.

[0007] A baffle is provided on the upper part of the oil pan outside the magnet, and the connecting line of the contact points of the baffle and the gearbox and the oil pan passes through the center of the magnet.

[0008] The utility model also includes the following technical features:

[0009] The gearbox and the oil pan are fixedly connected by bolts.

[0010] The radius of the outer edge of the magnet is the same as the radius of the baffle.

[0011] The mounting surface of the magnet and the oil pan is flush with the contact surface of the oil pan and the gearbox.

[0012] The connecting line is perpendicular to the center connecting line between the two L-shaped claws.

[0013] Compared with the prior art, the utility model has the beneficial technical effects that:

[0014] (I) In the utility model, the magnet is fixed to the oil pan, two L-shaped claws are designed on the oil pan, the two L-shaped claws are used for limiting the freedom of the magnet in four directions, in addition, a baffle is designed on the right side of the magnet for limiting the translation of the magnet to the right, after the oil pan and the gearbox are assembled into one, the side wall of the gearbox can limit the translation of the magnet to the left, thus, the six freedoms of the magnet are all limited, the falling and disengagement of the magnet can be effectively prevented, and the technical problem of the magnet falling from the bottom of the gearbox assembly in the prior art is solved.

[0015] (II) Through the L-shaped claw, the baffle and the gearbox in the utility model, the limitation of the six freedoms is realized, the magnet can be effectively prevented from falling, even if the bonding glue fails during operation, the magnet can be maintained in the original position and continuously adsorb the iron filings, and the functional requirement is met; the requirement for the bonding glue and the bonding process during the bonding of the magnet is reduced, and the process difficulty is reduced.

[0016] (III) The utility model can also be effectively popularized in the aluminum alloy box type, and is not limited by the shell material. DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model;

[0018] Figure 2 is a side view of Figure 1 ; is a front view of

[0019] Figure 3 is an A-A sectional view of Figure 1 ; and

[0020] The meanings of the various reference numerals in the drawings are as follows: gearbox 1, oil pan 3, magnet 2, L-shaped claw 4, baffle 5, bolt 6.

[0021] The specific content of the utility model will be further explained and described in detail in combination with the embodiments. DETAILED DESCRIPTION

[0022] It should be noted that all the parts in the utility model, without special description, adopt the parts known in the art.

[0023] The utility model discloses a specific embodiment is given below, it is explained that the utility model is not limited to the following specific embodiments, all equivalent transformations that do on the technical scheme of the application fall into the protection scope of the utility model.

[0024] The utility model discloses a gearbox bottom's magnet fixing device, as shown in Figures 1-3 The upper portion of the oil pan 3 is fixedly provided with a magnet 2, and the upper portion of the oil pan 3 located at the outer edge of the magnet 2 is provided with a pair of symmetrically distributed L-shaped clamping jaws 4, and the inner wall of the upper end of the L-shaped clamping jaw 4 is in contact with the outer wall of the magnet 2.

[0025] The upper portion of the oil pan 3 located at the outer edge of the magnet 2 is provided with a baffle 5, and the connecting line of the contact points of the baffle 5 and the gearbox 1 and the oil pan 3 passes through the center of the magnet 2.

[0026] In the above technical scheme, the magnet 2 is fixed to the oil pan 3, two L-shaped clamping jaws are designed on the oil pan 3, the freedom degrees of the magnet 2 in four directions Figure 1 The vertical direction of the paper and the up-down direction are limited by the two L-shaped clamping jaws, in addition, a baffle 5 is designed on the right side of the magnet 2 to limit the translation of the magnet 2 to the right, after the oil pan 3 is assembled with the gearbox 1 as a whole, the side wall of the gearbox can limit the translation of the magnet 2 to the left, thus, the six freedom degrees of the magnet are all limited, and the falling and disengagement of the magnet can be effectively prevented.

[0027] The six freedom degrees are limited by the L-shaped clamping jaw, the baffle 5 and the gearbox, the falling of the magnet is effectively prevented, even if the adhesive fails in the running process, the magnet can be maintained in the original position and continuously adsorb the iron filings, and the functional requirement is met; the requirements for the adhesive and the adhesive process in the adhesive process of the magnet are reduced, and the process difficulty is reduced.

[0028] The oil pan 3 is fixed to the bottom of the gearbox 1 through a bolt 6.

[0029] In the above technical scheme, the gearbox 1 and the oil pan 3 are fixed and connected through the bolt 6, and the installation and dismounting are facilitated.

[0030] The curvature of the outer edge of the magnet 2 is same as the curvature of the baffle 5.

[0031] In the above technical scheme, the contact surface curvature of the magnet 2 and the baffle 5 is same, and the deviation of the magnet 2 under the trend of moving to the right can be effectively prevented.

[0032] The installation surface of the magnet 2 and the oil pan 3 is flush with the contact surface of the oil pan 3 and the gearbox 1.

[0033] In the above technical scheme, the two surfaces are flush, and the manufacturing and processing of the L-shaped clamping jaw 4 are facilitated.

[0034] The connecting line is perpendicular to the center connecting line of the two L-shaped claws 4.

[0035] In the above technical solutions, the best and most stable fixing effect is achieved when the L-shaped claw 4, the baffle 5, and the gearbox 1 are all perpendicular to each other.

Claims

1. A magnet fixing device for a transmission bottom, comprising an oil pan (3) fixed to the bottom of a transmission (1), characterized in that, The upper part of the oil sump (3) is fixedly provided with a magnet (2), and the upper part of the oil sump (3) at the outer edge of the magnet (2) is provided with a pair of symmetrically distributed L-shaped claws (4), the inner wall of the upper end of the L-shaped claw (4) is in contact with the outer wall of the magnet (2); The upper part of the oil sump (3) at the outer edge of the magnet (2) is provided with a baffle (5), and the connecting line of the contact points of the baffle (5) and the gearbox (1) and the oil sump (3) passes through the center of the magnet (2); The arc of the outer edge of the magnet (2) is the same as the arc of the baffle (5); the connecting line is perpendicular to the center connecting line between the two L-shaped claws (4).

2. The magnet fixing device for the transmission bottom according to claim 1, wherein The gearbox (1) and the oil sump (3) are fixedly connected by bolts (6).

3. The magnet fixing device for the transmission bottom according to claim 1, wherein The mounting surface of the magnet (2) and the oil sump (3) is flush with the contact surface of the oil sump (3) and the gearbox (1).

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