CN209320595U - Station wagon pneumatic drum brake front axle assembly - Google Patents
Station wagon pneumatic drum brake front axle assembly Download PDFInfo
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- CN209320595U CN209320595U CN201822169471.1U CN201822169471U CN209320595U CN 209320595 U CN209320595 U CN 209320595U CN 201822169471 U CN201822169471 U CN 201822169471U CN 209320595 U CN209320595 U CN 209320595U
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Abstract
The utility model discloses a kind of station wagon pneumatic drum brake front axle assembly, including front axle, knuckle, left steering arm, track rod assembly, right turn arm, front hub brake drum assembly, front brake assembly, preceding brake camshaft, brake clearance adjust arm, preceding brake chamber.Knuckle is hinged on the both ends of front axle by stub；Left and right turn arm is cooperated by taper hole to be connect with knuckle, and track rod assembly is connect by its ball pin with knuckle；Front hub brake drum assembly and front brake assembly are mounted on knuckle；Preceding brake chamber is mounted on front brake assembly, and brake clearance adjustment arm one end is connect with preceding brake chamber, the other end and preceding brake cam axis connection；Preceding brake camshaft one end is connect with brake clearance adjustment arm, and the other end is connect with front brake assembly；When braking, brake clearance adjusts the rotation of armband moving cam axis, pushes brake-shoe to be pressed against on brake drum and realizes braking.The application structure is simple, and steering angle is big, and braking ability is reliable and stable.
Description
Technical field
The utility model relates to the front axle assemblies of vehicle steering system, and in particular to a kind of station wagon air pressure drum brake
Device front axle assembly.
Background technique
With the expansion of development and the urban construction of high speed railway construction, the frequency of personnel's trip increases, the small freight volume of short distance
The use scope of station wagon increase year by year, the small-sized commuting car in city and short distance between urban and rural areas plug into car development extremely
Rapidly.
In city short-distance transport mode, the use of new-energy automobile, existing small-sized electric car system are carried out energetically by country
Dynamic device front axle assembly is mostly the improvement structure made on the basis of existing truck front axle assembly, it is difficult to meet new energy visitor
The problems such as applying working condition and quality requirement of vehicle, generally existing steering angle is insufficient, whole bridge high failure rate.
Utility model content
The utility model provides a kind of station wagon pneumatic drum brake front axle assembly, and steering angle is big, structure
Simply, use is more stable, reliable.
For this purpose, the technical solution adopted in the utility model is:
A kind of station wagon pneumatic drum brake front axle assembly, including front axle, knuckle, stub, lock pin, left steering
Arm, track rod assembly, right turn arm, front hub brake drum assembly, front brake assembly, preceding brake air chamber bracket, preceding system
Moving cam axis, brake clearance adjustment arm and preceding brake chamber；Knuckle is hingedly mounted on the both ends of front axle by stub, left end
Stub and front axle are fastened by lock pin, and knuckle is equipped with limiting steering mechanism；Left steering arm is in U-shape, by a "-" type left side
Side arm and a L shape right arm are constituted, and one end of left side arm is cooperated by taper hole to be connect with left steering section, the connecting pin of left and right side arm
Ball pin by the way that track rod assembly left end is arranged in is connect with track rod assembly, the other end of right arm be equipped with it is whole
The conical bore of vehicle steering drag link connection；Right turn arm is in linear type, and one end is cooperated by taper hole to be connect with right turn section, separately
One end is connect by the way that the ball pin of track rod assembly right end is arranged in track rod assembly；Front hub brake drum assembly packet
Include preceding brake drum, front hub and wheel bolt；Front hub is rotatably installed on the diameter of axle of knuckle by inside and outside cant bearing, preceding
Brake drum covers its front end face on front hub and is bonded with front hub, and it is tight by nut that wheel bolt passes through preceding brake drum and front hub
It is solidly connected, front brake assembly is mounted on knuckle ring flange by bolt；Preceding brake air chamber bracket is mounted on by bolt
On front brake assembly, before preceding brake chamber is mounted on brake air chamber bracket, preceding brake camshaft one end and preceding brake chamber
Holder pivots connection, the rear wall that the other end passes through front brake assembly are connect with the brake-shoe in front brake assembly, are braked
Gap adjusts one end of arm by spline and preceding brake cam axis connection, and the other end is connect with preceding brake chamber；When braking, braking
Gap adjusts arm and drives cam axle in the case where the air pressure of preceding brake chamber pushes, and pushes brake-shoe to be pressed against on brake drum and realizes
Braking.
Further, the limiting steering mechanism includes limiting steering bolt and adjusting nut, and limiting steering bolt passes through
Adjusting nut is mounted on knuckle, screw-driven pair is constituted between limiting steering bolt and knuckle, by adjusting nut tune
Inside lock and outer corner that limiting steering bolt exposes the length restriction front axle assembly of knuckle end face are saved, is tightened after the completion of adjustment
Adjusting nut fastens limiting steering bolt.Closer, the preferably described front axle is equipped with positive stop lug boss, rotates knuckle, turns to
The head of caging bolt is supported only on positive stop lug boss, is limited knuckle and is further rotated.
Limiting steering bolt is mounted on knuckle, rotates knuckle, caging bolt head can resist corresponding positions on front axle
The positive stop lug boss set rotate knuckle can not further, though the rotational angle of knuckle be limited to one as defined in turn
In angular region.Structure is simple, easy to adjust.
Further, the central part of the front hub is equipped with bearing mounting hole, and bearing mounting hole is through-hole, inside and outside cant axis
It holds and is mounted in bearing mounting hole, bearing outer ring and front hub interference fit connect, and the knuckle diameter of axle sequentially passes through inside and outside cant
Bearing and front hub are rotatablely connected, and the knuckle diameter of axle is connect with bearing inner race transition fit；The outside of interior cant bearing is equipped with oil
It seals, is successively arranged locking washer, locking nut and split pin, locking washer, locking nut and opening on the outside of outer cant bearing
Pin, which is successively sleeved on the knuckle diameter of axle, to be played the role of locking bearing inner race and knuckle；Before the outside of the split pin is equipped with
Wheel hub cover, front wheel hub cap be mounted in bearing mounting hole by axis hole interference fit, front wheel hub cap, oil sealing and bearing mounting hole
Inner wall constitutes a closed cavity.
By filling lubricating grease in cavity, lubricating action played to bearing, and lubricating grease will not leak cause waste or
Pollute environment.
The utility model has the beneficial effects that
1, the front axle assembly of the utility model simplifies the use of components on the basis of existing structure, and mounting structure is simple, tears open
Dress is convenient, and use reliability is higher, and whole bridge failure rate is low.
2, the conical bore design connecting on the left steering arm and steering arm of U-shaped structure with full-vehicle steering Drag link makes the application
Front axle assembly rotational angle it is big, meet the applying working condition of station wagon.
3, the preceding brake chamber of the application only has running braking function, and the overall construction design of brake portion is simple, can
By property height.
Detailed description of the invention
Fig. 1 is the mounting structure schematic diagram of the embodiment 1 of the utility model pneumatic drum brake front axle assembly.
Fig. 2 is the front axle, knuckle and the horizontal drawing of steering of the utility model pneumatic drum brake front axle assembly embodiment 1
The connection schematic diagram of bar assembly.
Fig. 3 is that the knuckle of the utility model pneumatic drum brake front axle assembly embodiment 1, front hub brake drum are total
At, the connection schematic diagram of front brake assembly and preceding brake chamber.
Fig. 4 is cross-sectional view of the Fig. 3 along the direction B-B.
Specific embodiment
It is preferred below in conjunction with attached drawing and one kind to keep the purpose of this utility model, technical solution and advantage clearer
Embodiment the technical solution of the utility model is clearly and completely described.
Embodiment 1
Refering to fig. 1 and Fig. 2, station wagon pneumatic drum brake front axle assembly, including front axle 1, knuckle 2, turn to
Position-limit mechanism, stub 5, lock pin 8, left steering arm 10, track rod assembly 11, right turn arm 12, front hub brake drum assembly
13, front brake assembly 14, preceding brake camshaft 31, preceding brake air chamber bracket 32, preceding brake chamber 33 and brake clearance adjustment
Arm 34.
The left and right ends of front axle 1 are equipped with stub mounting hole 01, and stub mounting hole 01 is through-hole, the side of left end stub mounting hole
Wall is radially provided with lock pin mounting hole 02, and lock pin mounting hole 02 is through-hole, and is penetrated through with stub mounting hole.Front axle 1 is equipped with limit
Boss 03.
Stub 5 is cylindrical pin shape, and side wall is radially provided with lock pin connecting hole, and the inner wall of the lock pin connecting hole is equipped with first
Lozenges.Lock pin 8 is wedge-shaped straight pin, and outer peripheral surface is equipped with the second lozenges 81, and the second lozenges 81 and the first lozenges are suitable
Match, the head of lock pin 8 is equipped with cylindrical external thread.
Knuckle 2 is equipped with the support diameter of axle 201, ring flange 202 and crotch 203, the connection of the ring flange 202 support diameter of axle 201 with
Crotch 203.The top and the bottom of crotch are correspondingly provided with the upper and lower mounting hole 231,232 of knuckle, and the lower part of crotch is connected equipped with steering arm
Hole 233, steering arm connecting hole 233 are conical through-hole.The lateral surface of ring flange 202 is equipped with limiting steering mechanism, in the present embodiment
In, limiting steering mechanism includes limiting steering bolt 31 and adjusting nut 30, and limiting steering bolt 31 is pre- by adjusting nut 30
It is first mounted on the lateral surface of knuckle ring flange 202, screw-driven pair is constituted between limiting steering bolt 31 and knuckle 2.
Caging bolt 31 is adapted to the positive stop lug boss 03 of front axle 1.
Left steering arm 10 is in U-shape, and is made of arm on the left of a "-" type and a L shape right arm, one end of left side arm is equipped with
Steering arm mounting portion 101, steering arm mounting portion 101 are equipped with cylindrical external thread, left steering in cone, steering arm mounting portion end
The circular conical surface of arm 10 is adapted to the hole inner wall of knuckle steering arm connecting hole 233；The connecting pin of left and right side arm, which is equipped with, turns to horizontal drawing
Bar mounting hole 102, track rod mounting hole 102 are through-hole, and end is equipped with cylindrical external thread；The other end of right arm is equipped with
Steering drag link mounting hole 103, steering drag link mounting hole 103 are conical bore, are adapted to steering drag link.
Right turn arm 12 is in linear type, and one end is equipped with steering arm mounting portion 121, and steering arm mounting portion turns in cone
It is equipped with cylindrical external thread to arm mounting portion end, the circular conical surface of steering arm is adapted to the hole inner wall of knuckle steering arm mounting hole；
Its other end is equipped with steering drag link mounting hole 122, and steering drag link mounting hole is conical bore, is adapted to steering drag link.
The connection type of front axle 1, knuckle 2, left steering arm 10, track rod assembly 11, right turn arm 12 are as follows:
Stub 5 sequentially pass through knuckle upper installing hole 231, adjusting washer 6, stub mounting hole 01, plain thrust bearing 7,
Knuckle 2 and main shaft 1 are hingedly connected together by mounting hole 232 under knuckle, by the adjusting pad for choosing to install different-thickness size
Enclose the pretightning force between 6 adjustable knuckles 2 and front axle 1.Lock pin 8 passes through the lock pin connecting hole of lock pin mounting hole 02 and stub 5,
It is fixed on knuckle 2 by hex nut 4.Second lozenges 81 and the first wedge-shaped face paste are closed, and make stub 5 not with respect to front axle 1
Relative displacement is generated, realizes and fixes.Left steering arm 10, right turn arm 12 pass through its steering arm mounting portion 101,121 tapers respectively
It is fitted in the steering arm connecting hole 233 of knuckle 2, and is fixed on knuckle 2 by hexagon slotted nut 3.It turns to
Tie rod assembly 11 is mounted on the track rod mounting hole of left steering arm 10 and right turn arm 12 by the ball pin 111 at both ends
102, it in 122, and is fixed on left steering arm 10 and right turn arm 12 by hexagon slotted nut 9.
The working principle of limiting steering mechanism is: the head of rotation knuckle 2, limiting steering bolt 31 is supported only in front axle 1
Positive stop lug boss 03 on when, limit knuckle further rotate, so that the rotational angle of knuckle 2 is limited to a defined corner
In range.It limits in front axle assembly and turns by adjusting the length that nut 30 adjusts the exposing of limiting steering bolt 31 knuckle end face
Angle and outer corner tighten adjusting nut 30 after the completion of adjustment and limiting steering bolt 31 are fastened on knuckle 2.
Refering to Fig. 3, front hub brake drum assembly 13 includes preceding brake drum 15, front hub 17 and wheel bolt 18.Front hub
15 central part is equipped with bearing mounting hole, and bearing mounting hole is through-hole, and inside and outside cant bearing 20,21 is mounted on bearing mounting hole
Interior, the bearing mounting hole of bearing outer ring and front hub 17, which is interference fitted, to be connected.In the support diameter of axle 201 of knuckle 2 sequentially passes through
Outer cant bearing 20,21, and inside and outside cant bearing 20,21 is fastened on by locking washer 25, locking nut 24 and split pin 23
In, locking washer, locking nut and split pin cooperation are played the role of locking bearing inner race and knuckle.The knuckle diameter of axle 201
It is connect with the bearing inner race transition fit of inside and outside cant bearing 20,21.The outside of interior cant bearing 20 is equipped with oil sealing 19, oil sealing
19, which are fixed on knuckle by oil sealing seat ring 26, supports on the diameter of axle 201, and oil sealing seat ring 25 and the support diameter of axle 201 are interference fitted, oil
The outer ring of envelope 19 and front hub 17 are interference fitted, and are rotatablely connected between oil sealing 19 and oil sealing seat ring 25.The outside of split pin 21 is set
There is front wheel hub cap 22, front wheel hub cap 22 is mounted in the bearing mounting hole of front hub 17 by axis hole interference fit.Front wheel hub cap
22, the inner wall of oil sealing 19 and bearing mounting hole constitutes a closed cavity, and lubricating grease is loaded in cavity.
Refering to Fig. 4, front brake assembly 14 includes brake-shoe 141 and friction plate 142,142 one side of friction plate and preceding system
The medial surface of dynamic drum 15 is fitted and connected, and another side is fitted and connected the outer peripheral surface of brake-shoe 141.Front brake assembly 14 passes through system
Dynamic device installation bolt 28 is mounted on the ring flange 202 of knuckle 2, and is locked by hex nut 27.Preceding brake chamber
Bracket 32 is mounted on front brake assembly 14 by hex bolts, and preceding brake chamber 33 is mounted on preceding brake air chamber bracket 32
On；Brake clearance adjustment 34 one end of arm and the push rod of preceding brake chamber 33 are rotatably connected, the other end and preceding brake camshaft 31
Connection；Preceding brake camshaft 31 may be rotatably mounted on preceding brake air chamber bracket 32, and brake clearance adjustment is socketed in one end
It is positioned on arm 34 and by spline, the rear wall that the other end passes through front brake assembly 14 is put in front hub 17 and brake-shoe
141 connections.Brake camshaft 31 stretches out construction opening pin 35 on the cam spindle nose of brake clearance adjustment arm 34, for limiting braking
Adjustment arm 34 in gap moves left and right distance.When braking, brake clearance adjusts arm and drives in the case where the air pressure of preceding brake chamber pushes
Cam axle pushes brake-shoe to be pressed against on brake drum and realizes braking.
Preceding brake chamber 33 have running braking function, and structure is film commonly used in existing automobile front axle assembly
Flat spring structure.Front brake assembly 14 is pneumatic drum brake structure commonly used in existing automobile front axle assembly.Before
Brake assembly 14, preceding brake chamber 33, preceding brake air chamber bracket 32, brake camshaft 31, brake clearance adjustment arm 34 cooperate
Braking function is realized in connection.
Not doing the part illustrated in above instructions is the prior art, or has both been able to achieve by the prior art.
Claims (4)
1. a kind of station wagon pneumatic drum brake front axle assembly, which is characterized in that including front axle, knuckle, stub, lock
Pin, left steering arm, track rod assembly, right turn arm, front hub brake drum assembly, front brake assembly, preceding brake chamber
Bracket, preceding brake camshaft, brake clearance adjustment arm and preceding brake chamber；Knuckle is hingedly mounted on the two of front axle by stub
End, the stub and front axle of left end are fastened by lock pin, and knuckle is equipped with limiting steering mechanism；Left steering arm is in U-shape, by one
Arm and a L shape right arm are constituted on the left of "-" type, and one end of left side arm is cooperated by taper hole to be connect with left steering section, left and right side arm
Connecting pin pass through and the ball pin of track rod assembly left end is set is connect with track rod assembly, the other end of right arm
Equipped with the conical bore being connect with full-vehicle steering Drag link；Right turn arm is in linear type, and one end is cooperated by taper hole and right turn
Section connection, the other end are connect by the way that the ball pin of track rod assembly right end is arranged in track rod assembly；Front hub system
Dynamic drum assembly includes preceding brake drum, front hub and wheel bolt；Front hub is rotatably installed in knuckle by inside and outside cant bearing
The diameter of axle on, preceding brake drum covers its front end face on front hub and is bonded with front hub, wheel bolt pass through preceding brake drum and front-wheel
Hub is fastenedly connected by nut, and front brake assembly is mounted on knuckle ring flange by bolt；Preceding brake air chamber bracket is logical
Bolt is crossed to be mounted on front brake assembly, before preceding brake chamber is mounted on brake air chamber bracket, preceding brake camshaft one end
It is rotatablely connected with preceding brake air chamber bracket, the rear wall and the braking in front brake assembly that the other end passes through front brake assembly
Hoof connection, brake clearance adjust one end of arm by spline and preceding brake cam axis connection, and the other end is connect with preceding brake chamber；
When braking, brake clearance adjusts arm and drives cam axle in the case where the air pressure of preceding brake chamber pushes, and brake-shoe is pushed to be pressed against
Braking is realized on brake drum.
2. pneumatic drum brake front axle assembly as described in claim 1, which is characterized in that the limiting steering mechanism includes
Limiting steering bolt and adjusting nut, limiting steering bolt are mounted on knuckle by adjusting nut, limiting steering bolt with
Screw-driven pair is constituted between knuckle, the length for exposing knuckle end face by adjusting nut adjustment limiting steering bolt limits
The inside lock of front axle assembly and outer corner tighten adjusting nut fastening limiting steering bolt after the completion of adjustment.
3. pneumatic drum brake front axle assembly as claimed in claim 2, which is characterized in that the front axle is equipped with limit convex
Platform rotates knuckle, and the head of limiting steering bolt is supported only on positive stop lug boss, limits knuckle and further rotates.
4. pneumatic drum brake front axle assembly as described in claim 1, which is characterized in that the central part of the front hub is set
There is bearing mounting hole, bearing mounting hole is through-hole, and inside and outside cant bearing is mounted in bearing mounting hole, bearing outer ring and front hub
Interference fit connection, the knuckle diameter of axle sequentially passes through inside and outside cant bearing and front hub is rotatablely connected, the knuckle diameter of axle and bearing
The connection of inner ring transition fit；The outside of interior cant bearing is equipped with oil sealing, and locking washer, lock are successively arranged on the outside of outer cant bearing
Tight nut and split pin, locking washer, locking nut and split pin, which are successively sleeved on the knuckle diameter of axle, to be played in locking bearing
The effect of circle and knuckle；The outside of the split pin is equipped with front wheel hub cap, and front wheel hub cap is mounted on by axis hole interference fit
In bearing mounting hole, the inner wall of front wheel hub cap, oil sealing and bearing mounting hole constitutes a closed cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822169471.1U CN209320595U (en) | 2018-12-21 | 2018-12-21 | Station wagon pneumatic drum brake front axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822169471.1U CN209320595U (en) | 2018-12-21 | 2018-12-21 | Station wagon pneumatic drum brake front axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209320595U true CN209320595U (en) | 2019-08-30 |
Family
ID=67728205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822169471.1U Active CN209320595U (en) | 2018-12-21 | 2018-12-21 | Station wagon pneumatic drum brake front axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209320595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016538A (en) * | 2019-11-29 | 2020-04-17 | 方盛车桥（柳州）有限公司 | Disconnected airport ferry vehicle axle |
-
2018
- 2018-12-21 CN CN201822169471.1U patent/CN209320595U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016538A (en) * | 2019-11-29 | 2020-04-17 | 方盛车桥（柳州）有限公司 | Disconnected airport ferry vehicle axle |
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