CN215850561U

CN215850561U - Automatic oiling hub unit of sealed trailer shaft

Info

Publication number: CN215850561U
Application number: CN202121533128.6U
Authority: CN
Inventors: 王松涛
Original assignee: Hebei Songhua Trailer Manufacturing Co ltd
Current assignee: Hebei Songhua Trailer Manufacturing Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-02-18
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses an automatic oil injection hub unit of a sealed trailer shaft, which comprises a hub sleeve, an oil shell, an inner sleeve, a brake disc, a screw rod, a middle ring, a middle shaft and an oil supply head, wherein an inner ring is fixedly arranged on the outer wall of the middle ring, a reinforcing seat is fixedly arranged on the front side of the inner ring, the front part of the outer side of the reinforcing seat is sleeved with the hub sleeve, the screw rods which are arranged at equal intervals penetrate through the inner side of the inner ring in an inserted connection mode, and the brake disc is sleeved on the edge of the inner ring. The brake assembly has reasonable structural design, has the brake assembly which can be quickly replaced, has few disassembly parts during maintenance, ensures tight assembly, has an automatic lubricating structure, automatically supplies oil, is convenient to lubricate and convenient and quick to use, ensures the sealing of the whole using process, and has high practicability.

Description

Automatic oiling hub unit of sealed trailer shaft

Technical Field

The utility model relates to the field of hubs, in particular to an automatic oiling hub unit of a sealed trailer shaft.

Background

A hub is a cylindrical, centrally mounted metal part on a shaft that supports the tire within its inner contour. Also called rim, steel ring, wheel and tyre bell. The hub has been developed to the third generation according to the diameter, width, forming mode, different kinds of materials, and the increasing range of use and the use amount of the hub bearing unit: the first generation consisted of double row angular contact bearings. The second generation has a flange on the outer raceway for fixing the bearing, which can be simply screwed onto the axle. Making the maintenance of the car easier. The third generation hub bearing unit adopts the matching of the bearing unit and the anti-lock brake system. The hub unit is designed with an inner flange bolted to the drive shaft and an outer flange mounting the entire bearing together.

Current wheel hub need regularly carry out the oiling to the bearing and maintain for guaranteeing long-time use stability, but oiling complex operation, and it is inconvenient to maintain the use, and current wheel hub structure is split type simultaneously, and the assembly position is sealed not tight, leads to assembly position poor stability.

Accordingly, one skilled in the art has provided a sealed trailer axle auto-oiling hub unit that addresses the problems set forth in the background above.

Disclosure of Invention

The utility model aims to provide an automatic oiling hub unit of a sealed trailer shaft, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

a sealed trailer shaft automatic oiling hub unit comprises a hub sleeve, an oil shell, an inner sleeve, a brake disc, a screw rod, a middle ring, a middle shaft and an oil supply head, wherein the outer wall of the middle ring is fixedly provided with the inner ring, the front side of the inner ring is fixedly provided with a reinforcing seat, the front part of the outer side of the reinforcing seat is sleeved with the hub sleeve, the inner side of the inner ring is fixedly provided with the screw rod which is arranged at equal intervals in a penetrating and inserting mode, the edge of the inner ring is sleeved with the brake disc, the middle part of the inner side of the middle ring is fixedly provided with a shaft sleeve, the middle shaft is arranged in the middle of the shaft sleeve in an inserting mode, the rear end of the middle shaft is fixedly provided with a bolt flange, the front end of the middle shaft is provided with a spindle head bolt through screw thread screwing mode, the spindle head bolt is assembled with the hub sleeve in a pressing mode, the outer side of the shaft sleeve is sleeved with the inner sleeve, the bearing cavity is arranged in the middle of the inner side of the inner sleeve, the outer wall of the shaft sleeve is sleeved with symmetrically arranged seal sleeves, the seal sleeves are embedded with the inner wall of the edge of the inner sleeve in a pressing mode, the utility model discloses a pump feeder, including endotheca, oil shell, welt, oil pipe and maintenance board, the inboard lower part fixed mounting of welt has pump feeder, and pump feeder top fixed mounting has the oil supply head, and the oil supply head switches on with endotheca inner space.

As a further scheme of the utility model: the oil supply head includes oil pipe, balladeur train, slide bar, spring, end cap and grommet, the oil pipe bottom is with the fixed turn-on connection of pump sender top opening, the oil pipe top runs through fixed connection and is located the lower part oil shell and endotheca, oil pipe switches on with the endotheca inner space, the inboard middle part fixed mounting of oil pipe has the balladeur train, and the slide bar is installed in the middle part slip grafting of balladeur train, and slide bar bottom fixed mounting has the end cap, the slide bar outside cover is established and is installed the spring, the spring is located between end cap and the balladeur train, the inboard lower part fixed mounting of oil pipe has the grommet, the lateral wall of end cap bottom inlays and establishes fixed mounting and has the liner, the liner closely crimping with the grommet, the end cap bottom is provided with the conical head, the grommet top lateral wall is unanimous with the end cap shape.

As a still further scheme of the utility model: the fixed end both sides fixed connection branch piece of oil shell, the inside fixed mounting that establishes of running through of branch piece has the bolt cover, the inside round hole of offering with bolt cover complex of welt.

As a still further scheme of the utility model: the brake disc is fixedly connected with the inner ring through a fixing pin, and the brake disc adopts a double-brake disc structure with front and back lock joints.

As a still further scheme of the utility model: the top end of the oil shell positioned at the upper part is provided with an oil adding head in a penetrating and screwing way.

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

the brake assembly has reasonable structural design, has the brake assembly which can be quickly replaced, has few disassembly parts during maintenance, ensures tight assembly, has an automatic lubricating structure, automatically supplies oil, is convenient to lubricate and convenient and quick to use, ensures the sealing of the whole using process, and has high practicability.

Drawings

FIG. 1 is a top schematic view of a sealed trailer axle auto-oiling hub unit.

FIG. 2 is a top view of the interior of a sealed trailer axle auto-oiling hub unit.

FIG. 3 is a schematic front view of a sealed trailer axle auto oiling hub unit between the liner plate, the oil hull and the center axle.

FIG. 4 is a schematic front view of the inner sleeve, oil jacket, pump feeder and oil supply head of a sealed trailer axle automatic oiling hub unit.

In the figure: the hub sleeve comprises a hub sleeve 1, an oil shell 2, an inner sleeve 3, a brake disc 4, a screw rod 5, a reinforcing seat 6, a middle ring 7, a sealing sleeve 8, a middle shaft 9, a shaft sleeve 10, an inner ring 11, an oil filling head 12, a shaft head bolt 13, a support piece 14, a lining plate 15, an oil passing pipe 16, an overhaul plate 17, a pump transmitter 18, an oil pipe 19, a sliding frame 20, a sliding rod 21, a spring 22, a plug 23 and a lining ring 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, in the embodiment of the present invention, a sealed trailer axle automatic oiling hub unit includes a hub sleeve 1, an oil shell 2, an inner sleeve 3, a brake disc 4, a screw 5, a middle ring 7, a middle axle 9 and an oil supply head, an inner ring 11 is fixedly installed on an outer wall of the middle ring 7, a reinforcing seat 6 is fixedly installed on a front side of the inner ring 11, the hub sleeve 1 is installed on a front portion of an outer side of the reinforcing seat 6 in a sleeved manner, the screws 5 arranged at equal intervals are fixedly inserted and installed on an inner side of the inner ring 11 in a penetrating manner, the brake disc 4 is installed on an edge of the inner ring 11 in a sleeved manner, an axle sleeve 10 is fixedly installed on a middle portion of the inner side of the middle ring 7 in a sleeved manner, the middle axle 9 is installed in a inserted manner on a middle portion of the axle sleeve 10, a bolt flange is fixedly installed on a rear end of the middle axle 9, a spindle head bolt 13 is rotatably installed on a front end of the middle axle 9 through a thread, the spindle head bolt 13 is press-fitted and assembled with the hub sleeve 1, the inner sleeve 3 is installed on an outer side of the axle sleeve 10, the inboard middle part of endotheca 3 is provided with the bearing chamber, the seal cover 8 that the symmetry set up is established to 10 outer wall covers of axle sleeve, and seal cover 8 inlays with 3 edge inner walls of endotheca and establishes the crimping, 3 outside middle parts covers of endotheca are established and are installed oil shell 2, and the crimping is installed between oil shell 2 and is scalded welt 15, and welt 15 middle part is run through fixed mounting and is crossed oil pipe 16, welt 15 is close to 15 one end fixed mounting of welt has access panel 17, cross oil pipe 16 and access panel 17 and run through fixed grafting, be located the lower part 2 inboard lower part fixed mounting of oil shell has pump transmitter 18, and pump transmitter 18 top fixed mounting has the oil supply head, and the oil supply head switches on with 3 inner spaces of endotheca.

The oil supply head comprises an oil pipe 19, a sliding frame 20, a sliding rod 21, a spring 22, a plug 23 and a lining ring 24, the bottom end of the oil pipe 19 is fixedly communicated with the opening at the top end of the pump transmitter 18, the top end of the oil pipe 19 is fixedly connected with the oil shell 2 and the inner sleeve 3 which are positioned at the lower part in a penetrating way, the oil pipe 19 is communicated with the inner space of the inner sleeve 3, the middle part of the inner side of the oil pipe 19 is fixedly provided with a sliding frame 20, the middle part of the sliding frame 20 is provided with a sliding rod 21 in a sliding and inserting way, the bottom end of the sliding rod 21 is fixedly provided with a plug 23, a spring 22 is sleeved on the outer side of the sliding rod 21, the spring 22 is positioned between the plug 23 and the sliding frame 20, a lining ring 24 is fixedly arranged at the lower part of the inner side of the oil pipe 19, a gasket is fixedly embedded and arranged on the side wall of the bottom end of the choke plug 23 and is tightly pressed with the lining ring 24, the bottom end of the plug 23 is provided with a conical head, and the side wall of the top end of the lining ring 24 is consistent with the shape of the plug 23.

The stiff end both sides fixed connection branch piece 14 of oil casing 2, the inside fixed mounting that establishes of penetrating through of branch piece 14 has the bolt cover, the inside round hole of seting up with bolt cover complex of welt 15.

Brake disc 4 passes through fixed pin and inner ring 11 fixed connection, brake disc 4 adopts the double brake disc structure of front and back lock joint.

The top end of the oil shell 2 positioned at the upper part is provided with an oil adding head 12 in a penetrating and screwing way.

The working principle of the utility model is as follows:

the utility model relates to a sealed trailer axle automatic oiling hub unit, which is used for a trailer hub, when in work, a wheel is sleeved outside a screw rod 5, the wheel can be fixedly connected by pressing and connecting the screw rod 5 with a nut, after assembly, the wheel can rotate by fixedly connecting a flange of a middle shaft 9 with an axle of a vehicle, an inner sleeve 3 of the device is fixed on a vehicle body to play a role in stabilizing a tire, and when in work, if a brake disc needs to be replaced, the brake disc 4 is fixedly connected with an inner ring 11 by a fixing pin, the brake disc 4 adopts a double-brake disc structure buckled front and back, the hub does not need to be disassembled, the multiple disassembly of the hub can be avoided by singly replacing the brake disc, the assembly of the hub is protected, the device is provided with symmetrically arranged oil casings 2, lubricating oil can be stored in the oil casings 2, and a bearing is arranged inside the inner sleeve 3, carry out sealed protection, when needing to lubricate the bearing, can carry out automatic fuel feeding for fuel feeding head oil charge through pump sender 18, it is lubricated convenient, the fuel feeding head receives the oil pressure extrusion for spring 22 is compressed, and then inside fluid passes through end cap 23 entering endotheca 3, and the oil charge back, can carry out the oil duct under the pressure that the spring kick-backed and seal, guarantee that the bearing position of device is lubricated stable.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An automatic oiling hub unit of a sealed trailer shaft comprises a hub sleeve (1), an oil shell (2), an inner sleeve (3), a brake disc (4), a screw (5), a middle ring (7), a middle shaft (9) and an oil supply head, and is characterized in that the outer wall of the middle ring (7) is fixedly provided with the inner ring (11), the front side of the inner ring (11) is fixedly provided with a reinforcing seat (6), the front part of the outer side of the reinforcing seat (6) is sleeved with the hub sleeve (1), the inner side of the inner ring (11) is fixedly provided with the screw (5) which are arranged at equal intervals in a penetrating and inserting manner, the edge of the inner ring (11) is sleeved with the brake disc (4), the middle part of the inner side of the middle ring (7) is fixedly provided with a shaft sleeve (10), the middle shaft (9) is arranged in an inserting manner in the middle part of the shaft sleeve (10), the rear end of the middle shaft (9) is fixedly provided with a bolt flange, the front end of the middle shaft (9) is rotatably provided with a shaft head bolt (13) through threads, the spindle head bolt (13) is assembled with the hub sleeve (1) in a compression joint mode, the inner sleeve (3) is sleeved on the outer side of the shaft sleeve (10), a bearing cavity is formed in the middle of the inner side of the inner sleeve (3), the sealing sleeves (8) symmetrically arranged are sleeved on the outer wall of the shaft sleeve (10), the compression joint is formed by embedding the inner walls of the edges of the sealing sleeves (8) and the inner sleeve (3), the oil shells (2) are sleeved on the middle of the outer side of the inner sleeve (3), the lining plate (15) is installed between the oil shells (2) in a compression joint mode, the middle of the lining plate (15) is fixedly provided with the oil pipe (16) in a penetrating mode, the lining plate (15) is fixedly provided with the maintenance plate (17) close to one end of the lining plate (15), the oil pipe (16) and the maintenance plate (17) are fixedly inserted in a penetrating mode, the lower portion of the inner side of the oil shell (2) is fixedly provided with the pump transmitter (18), the top end of the pump transmitter (18) is fixedly provided with the oil supply head, the oil supply head is communicated with the inner space of the inner sleeve (3).

2. The automatic oiling hub unit for sealed trailer shafts according to claim 1, wherein the oiling head comprises an oil pipe (19), a sliding frame (20), a sliding rod (21), a spring (22), a plug (23) and a bushing ring (24), the bottom end of the oil pipe (19) is fixedly connected with an opening at the top end of the pump feeder (18) in a conduction manner, the top end of the oil pipe (19) penetrates through the oil shell (2) and the inner sleeve (3) which are fixedly connected at the lower part, the oil pipe (19) is communicated with the inner space of the inner sleeve (3), the sliding frame (20) is fixedly installed at the middle part of the inner side of the oil pipe (19), the sliding rod (21) is installed at the middle part of the sliding frame (20) in a sliding and inserting manner, the plug (23) is fixedly installed at the bottom end of the sliding rod (21), the spring (22) is installed at the outer side of the sliding rod (21) in a sleeving manner, and the spring (22) is located between the plug (23) and the sliding frame (20), the oil pipe is characterized in that a lining ring (24) is fixedly mounted on the lower portion of the inner side of the oil pipe (19), a liner is fixedly mounted on the side wall of the bottom end of the plug (23) in an embedded mode, the liner is tightly pressed with the lining ring (24), a conical head is arranged at the bottom end of the plug (23), and the side wall of the top end of the lining ring (24) is identical to the shape of the plug (23).

3. The sealed trailer shaft automatic oiling hub unit as defined in claim 1, wherein the fixed end of the oil casing (2) is fixedly connected with support pieces (14) at both sides, a bolt sleeve is fixedly embedded in the support pieces (14), and a circular hole matched with the bolt sleeve is formed in the lining plate (15).

4. The sealed trailer shaft automatic oiling hub unit of claim 1, wherein the brake disc (4) is fixedly connected with the inner ring (11) through a fixing pin, and the brake disc (4) adopts a double brake disc structure with front and back buckling.

5. The sealed trailer shaft automatic oiling hub unit of claim 1, characterized in that the top of the oil shell (2) at the upper part is provided with an oiling head (12) through screwing.