CN207893021U - Pin type brake disc for commercial car - Google Patents
Pin type brake disc for commercial car Download PDFInfo
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- CN207893021U CN207893021U CN201721893865.0U CN201721893865U CN207893021U CN 207893021 U CN207893021 U CN 207893021U CN 201721893865 U CN201721893865 U CN 201721893865U CN 207893021 U CN207893021 U CN 207893021U
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Abstract
The utility model discloses a kind of pin type brake discs for commercial car, the brake disc includes brake disc ontology, towards the connection keyways for being along the circumferential direction equipped with several on the inner ring of the disk of wheel hub side for radial positioning and being mounted on the wheel hub when brake disc ontology installation, it is equipped with the second half-round cross hole that the brake disc ontology is installed for axial restraint in an axial direction at least one connection keyway, second half-round cross hole axially penetrates through the corresponding connection keyway.Suitable for commercial car.
Description
Technical field
The utility model is related to commercial car field of hub, more particularly to a kind of pin type brake disc for commercial car.
Background technology
Currently, Medium or severe type truck and Passenger Vehicle are widely used in highway transportation and engineering transportation, wheel hub brake disc
Assembly is as an important transmission link between ground and vehicle body, and which determine the traffic safety of vehicle and economy.It is existing
Wheel hub brake disk assembly generally comprise wheel hub and brake disc, wherein wheel hub is made of wheelboss flange and hub bearing position, braking
Disk is made of brake disc ontology and brake disc sleeve, and brake disc is sleeved on the hub bearing position of wheel hub simultaneously by brake disc sleeve
It is fixed by fixing bolt.This existing wheel hub brake disk assembly has the following problems in actual use：
1, it is sleeved on the hub bearing position of wheel hub and is fixed by fixing bolt, institute by brake disc sleeve due to brake disc
It can be by prodigious shearing force with fixing bolt；
2, since fixing bolt is fixed on brake disc sleeve and the interconnecting piece of hub bearing position, so the braking of brake disc
The stress point of power and fixing bolt is not in approximately the same plane, and brake force has certain distance in the axial direction with stress point, in this way
A moment of flexure will be generated, to further increase the stress of fixing bolt；
3, it is sleeved on the hub bearing position of wheel hub by brake disc sleeve due to brake disc, so entire wheel hub brake disc
Assembly is enclosed construction, causes radiating efficiency not high, and amount of heat gathers the system that can seriously affect brake disc on the disc brake rotor
Dynamic effect, to which traffic safety can be influenced.
To solve the above problems, we are there is an urgent need for developing a kind of new wheel hub brake disk assembly, and develop a kind of new
The first step of wheel hub brake disk assembly is to develop a kind of pin type brake disc for commercial car.
Invention content
The purpose of this utility model is to overcome the deficiencies of above-mentioned background technology, provide a kind of axis pin for commercial car
Formula brake disc.
In order to achieve the goal above, a kind of pin type brake disc for commercial car provided by the utility model, the system
Moving plate includes brake disc ontology, towards along the circumferential direction setting on the inner ring of the disk of wheel hub side when brake disc ontology installation
There are several to be mounted on the connection keyway on the wheel hub for radial positioning, is set in an axial direction at least one connection keyway
It is useful for the second half-round cross hole that axial restraint installs the brake disc ontology, second half-round cross hole axially penetrates through corresponding
The connection keyway.
By along the circumferential direction opening up connection keyway on inner ring of the brake disc ontology towards the disk of wheel hub side, in this way
When design production, then the corresponding position for installing brake disc ontology corresponding on the outer wall of the hub bearing position of wheel hub is along the circumferential direction
It adds and connect the matched connection spline of keyway, such brake disc can be mounted on wheel by spline connection type radial positioning
On hub, then brake disc axial restraint can be installed by the cooperation between expandable fixation assemblies and the second half-round cross hole again
On wheel hub, this combination mounting means is as a result of spline structure, and connection spline plays mainly by force effect, so can be swollen
Swollen fixation kit is only merely to play positioning action, and stress is very small, smaller so as to be sized to, in order to pacify
The maintenance of dress and later stage, and service life is longer；Simultaneously as the load that spline can bear is larger, so further carrying
High service life；Moreover, because the stress point of spline and the brake force of brake disc is in approximately the same plane, so not will produce
Moment of flexure to significantly improve the force status of spline, and then further improves service life；Again and, due to system
Moving plate ontology is directly mounted on by spline structure on hub bearing position, so brake disc is not necessarily to redesign brake disc sleeve, from
And the weight of this assembly is greatly reduced, be conducive to the lightweight of vehicle, more energy efficient environmental protection；Finally, by by the second semicircle
On the one hand via design facilitates the installation of expandable fixation assemblies, another party in this way at corresponding connection keyway is axially penetrated through
When face is dismantled, expandable fixation assemblies can support out from one end towards wheelboss flange of the second half-round cross hole, can to facilitate
Expand the dismounting of fixation kit.
In the above scheme, the internal diameter of the brake disc ontology towards the disk of the wheel hub side is less than the brake disc
Internal diameter of the ontology backwards to the disk of the wheel hub side.It is designed by the internal diameter by brake disc ontology towards the disk of wheel hub side
At less than brake disc ontology backwards to the disk of the wheel hub side internal diameter so that it is convenient to install.
In the above scheme, the quantity of second half-round cross hole is 5, and 5 second half-round cross holes are circumferentially square
To being evenly arranged.
The advantageous effect that technical solution provided by the utility model is brought is：
1, by along the circumferential direction opening up connection keyway on inner ring of the brake disc ontology towards the disk of wheel hub side, this
When sample design production, then corresponds to and correspond to the position for installing brake disc ontology circumferentially side on the outer wall of the hub bearing position of wheel hub
To adding and connecting the matched connection spline of keyway, such brake disc can be mounted on by spline connection type radial positioning
On wheel hub, then brake disc axial restraint can be pacified by the cooperation between expandable fixation assemblies and the second half-round cross hole again
On wheel hub, this combination mounting means is as a result of spline structure, and connection spline plays mainly by force effect, so can
It is only merely to play positioning action to expand fixation kit, and stress is very small, smaller so as to be sized to, in order to
The maintenance of installation and later stage, and service life is longer；
2, the load that can bear due to spline is larger, so further increasing service life；
3, since the brake force of the stress point of spline and brake disc is in approximately the same plane, so moment of flexure is not will produce, from
And the force status of spline is significantly improved, and then further improve service life；
4, since brake disc ontology is directly mounted on by spline structure on hub bearing position, so brake disc no longer needs to set
Meter brake disc sleeve is conducive to the lightweight of vehicle, more energy efficient environmental protection to greatly reduce the weight of this assembly；
5, by being designed to the second half-round cross hole to axially penetrate through corresponding connection keyway, on the one hand facilitating in this way can be swollen
The installation of swollen fixation kit, when on the other hand dismantling, expandable fixation assemblies can be from the second half-round cross hole towards wheelboss flange
One end support out, to facilitate the dismounting of expandable fixation assemblies；
6, it is designed to be less than brake disc ontology backwards to institute by the internal diameter by brake disc ontology towards the disk of wheel hub side
The internal diameter of the disk of wheel hub side is stated so that it is convenient to install.
Description of the drawings
Fig. 1 is the structural schematic diagram of wheel hub brake disk assembly；
Fig. 2 is another viewing angle constructions schematic diagram of Fig. 1；
Fig. 3 is the main structure diagram of Fig. 1；
Fig. 4 is the backsight structural representation of Fig. 1；
Fig. 5 is the cross-sectional view of the line A-A along Fig. 4；
Fig. 6 is the side structure schematic view of Fig. 1；
Fig. 7 is the structural schematic diagram of wheel hub；
Fig. 8 is another viewing angle constructions schematic diagram of Fig. 7；
Fig. 9 is the main structure diagram of Fig. 7；
Figure 10 is the backsight structural representation of Fig. 7；
Figure 11 is the cross-sectional view of the line B-B along Figure 10；
Figure 12 is the side structure schematic view of Fig. 7；
Figure 13 is the structural schematic diagram of brake disc；
Figure 14 is the main structure diagram of Figure 13；
Figure 15 is the side structure schematic view of Figure 13；
Figure 16 is the configuration schematic diagram of wheel hub brake disk assembly；
Figure 17 is another viewing angle constructions schematic diagram of Figure 16；
Figure 18 is the main structure diagram of Figure 16；
Figure 19 is another configuration schematic diagram of wheel hub brake disk assembly；
Figure 20 is the structural schematic diagram of expandable fixation assemblies；
Figure 21 is the main structure diagram of Figure 20；
Figure 22 is the side structure schematic view of Figure 20；
Figure 23 is the cross-sectional view of the line C-C along Figure 22；
Figure 24 is the configuration schematic diagram of expandable fixation assemblies.
In figure：Wheel hub 1, wheelboss flange 1a, hub bearing position 1b connect spline 1c, position reinforcing rib 1d, and the first semicircle is logical
Hole 1e, spline ventilation hole 1f, flange ventilation hole 1g, ventilation hole reinforcing rib 1h, brake disc 2, brake disc ontology 2a connect keyway
2b, the second half-round cross hole 2c, expandable fixation assemblies 3 expand axle sleeve 3a, expand axis pin 3b, expansion nut 3c, inflation openings
3d, locating flange 3e.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and embodiments, but the embodiment should not be understood
For limitations of the present invention.
Embodiment 1：
Present embodiment discloses a kind of pin type brake disc for commercial car, the brake disc includes brake disc ontology
Towards being along the circumferential direction used for equipped with several on the inner ring of the disk of 1 side of wheel hub when 2a, the brake disc ontology 2a installation
It is equipped with and is used in an axial direction in connection the keyway 2b, at least one connection keyway 2b that radial positioning is mounted on the wheel hub 1
The second half-round cross hole 2c, the second half-round cross hole 2c that axial restraint installs the brake disc ontology 2a axially penetrates through corresponding
The connection keyway 2b.Pass through the along the circumferential direction company of opening up on inner rings of the brake disc ontology 2a towards the disk of 1 side of wheel hub
Keyway 2b is met, when design produces in this way, then corresponding installation brake disc ontology corresponding on the outer wall of the hub bearing position 1b of wheel hub 1
The position of 2a along the circumferential direction adds and connect the matched connection spline 1c of keyway 2b, and such brake disc 2 can pass through spline
Connection type radial positioning is mounted on wheel hub 1, then again by between expandable fixation assemblies 3 and the second half-round cross hole 2c
Brake disc 2 can be axially installed on wheel hub 1 by cooperation, and this combination mounting means is as a result of spline structure, even
It meets spline 1c to play mainly by force effect, so expandable fixation assemblies 3 are only merely to play positioning action, stress is very
Small, smaller so as to be sized to, in order to install the maintenance with the later stage, and service life is longer；Simultaneously as flower
The load that key can bear is larger, so further increasing service life；Moreover, because the stress point and brake disc of spline
Brake force in approximately the same plane, so moment of flexure is not will produce, to significantly improve the force status of spline, Jin Ergeng
Further increase service life；Again and, due to brake disc ontology 2a directly by spline structure be mounted on hub bearing position
On 1b, so brake disc 2, to greatly reduce the weight of this assembly, is conducive to vehicle without redesigning brake disc sleeve
Lightweight, more energy efficient environmental protection；Finally, by being designed to the second half-round cross hole 2c to axially penetrate through corresponding connection keyway 2b,
The installation of expandable fixation assemblies 3 is on the one hand facilitated in this way, and when on the other hand dismantling, expandable fixation assemblies 3 can be from second
One end towards wheelboss flange 1a of half-round cross hole 2c is supported out, to facilitate the dismounting of expandable fixation assemblies 3.
The internal diameter of above-mentioned brake disc ontology 2a towards the disk of 1 side of the wheel hub is less than the brake disc ontology 2a backwards
The internal diameter of the disk of 1 side of the wheel hub.It is designed to by the internal diameter by brake disc ontology 2a towards the disk of 1 side of wheel hub small
In brake disc ontology 2a backwards to the disk of 1 side of the wheel hub internal diameter so that it is convenient to install.The second half-round cross hole 2c's
Quantity is 5, and 5 the second half-round cross hole 2c are evenly distributed in the circumferential direction.
The present embodiment passes through the along the circumferential direction company of opening up on inner rings of the brake disc ontology 2a towards the disk of 1 side of wheel hub
Keyway 2b is met, when design produces in this way, then corresponding installation brake disc ontology corresponding on the outer wall of the hub bearing position 1b of wheel hub 1
The position of 2a along the circumferential direction adds and connect the matched connection spline 1c of keyway 2b, and such brake disc 2 can pass through spline
Connection type radial positioning is mounted on wheel hub 1, then again by between expandable fixation assemblies 3 and the second half-round cross hole 2c
Brake disc 2 can be axially installed on wheel hub 1 by cooperation, and this combination mounting means is as a result of spline structure, even
It meets spline 1c to play mainly by force effect, so expandable fixation assemblies 3 are only merely to play positioning action, stress is very
Small, smaller so as to be sized to, in order to install the maintenance with the later stage, and service life is longer；By spline institute
The load that can be born is larger, so further increasing service life；Due to the stress point of spline and the brake force of brake disc
In approximately the same plane, so moment of flexure is not will produce, to significantly improve the force status of spline, and then further
Improve service life；Since brake disc ontology 2a is directly mounted on by spline structure on the 1b of hub bearing position, so braking
Disk 2, to greatly reduce the weight of this assembly, is conducive to the lightweight of vehicle, more saves without redesigning brake disc sleeve
It can environmental protection；By being designed to the second half-round cross hole 2c to axially penetrate through corresponding connection keyway 2b, on the one hand facilitating in this way can
The installation of fixation kit 3 is expanded, when on the other hand dismantling, expandable fixation assemblies 3 can be from the direction wheel of the second half-round cross hole 2c
One end of hub flange 1a is supported out, to facilitate the dismounting of expandable fixation assemblies 3；By by brake disc ontology 2a towards wheel hub
The internal diameter of the disk of 1 side be designed to be less than brake disc ontology 2a backwards to the disk of 1 side of the wheel hub internal diameter so that it is convenient to
Installation.
Embodiment 2：
This brake disc in actual use, need to form a set of wheel hub brake disk assembly with wheel hub 1, i.e., what a kind of band radiated is used for
The pin type wheel hub brake disk assembly of commercial car, including wheel hub 1 and brake disc 2, wherein the wheel hub 1 by wheelboss flange 1a and
Hub bearing position 1b is formed, and the brake disc 2 includes brake disc ontology 2a, the brake disc ontology 2a towards the wheel hub 1 one
It is along the circumferential direction equipped with several connections keyway 2b on the inner ring of the disk of side, peace is corresponded on the outer wall of the hub bearing position 1b
Fill the position of the brake disc ontology 2a be along the circumferential direction equipped with the matched connection spline 1c of connection keyway 2b, it is described
Brake disc ontology 2a is mounted on by the connection keyway 2b and connection spline 1c on the hub bearing position 1b, the company
It is fixed towards being equipped with corresponding position on the outer wall of the hub bearing position 1b on the side of the wheelboss flange 1a to meet spline 1c
Position reinforcing rib 1d, the positioning reinforcing rib 1d protrude the top surface of the connection spline 1c, and the positioning reinforcing rib 1d is for positioning
The brake disc ontology 2a and the intensity for increasing the connection spline 1c, the top of at least one connection spline 1c are installed
Face upper edge is axially arranged with the first half-round cross hole 1e, the first half-round cross hole 1e axially penetrate through the corresponding connection spline 1c and
It is equipped with the second half-round cross hole 2c in the corresponding positioning reinforcing rib 1d, the corresponding connection keyway 2b in an axial direction, described the
Two half-round cross hole 2c axially penetrate through the corresponding connection keyway 2b, the second half-round cross hole 2c and first half-round cross hole
Expandable fixation assemblies 3 are installed in the full circle through-hole that 1e is formed；It is set between the root of the two neighboring connection spline 1c
Have and is along the circumferential direction equipped with what several can be connected to the spline ventilation hole 1f on spline ventilation hole 1f, the wheelboss flange 1a
Flange ventilation hole 1g.
By along the circumferential direction opening up connection keyway on inner rings of the brake disc ontology 2a towards the disk of 1 side of wheel hub
2b, and the position of corresponding installation brake disc ontology 2a along the circumferential direction adds and connect keyway on the outer wall of hub bearing position 1b
The matched connection spline 1c of 2b, such brake disc 2 can be mounted on by spline connection type radial positioning on wheel hub 1, so
Brake disc 2 can be axially installed in by wheel hub 1 by the cooperation between expandable fixation assemblies 3 and full circle through-hole again afterwards
On, this combination mounting means is played as a result of spline structure, connection spline 1c mainly by force effect, so inflatable solid
It is merely to play positioning action to determine component 3 only, and stress is very small, smaller so as to be sized to, in order to install
With the maintenance in later stage, and service life is longer；Simultaneously as the load that spline can bear is larger, so further improving
Service life；Moreover, because the stress point of spline and the brake force of brake disc is in approximately the same plane, so not will produce curved
Square to significantly improve the force status of spline, and then further improves service life；Again and, due to braking
Disk ontology 2a is directly mounted on by spline structure on the 1b of hub bearing position, so brake disc 2 is not necessarily to redesign brake disc sleeve,
To greatly reduce the weight of this assembly, be conducive to the lightweight of vehicle, more energy efficient environmental protection；Then, by adjacent two
Spline ventilation hole 1e is opened up between the root of a connection spline 1c, and along the circumferential direction opening up several on wheelboss flange 1a can
The flange ventilation hole 1f being connected to spline ventilation hole 1e, such air can circulate in this assembly, to greatly increase this
The radiating efficiency of assembly, has ensured traffic safety；Followed by, by connection spline 1c towards on the side of wheelboss flange 1a with
Corresponding position adds positioning reinforcing rib 1d on the outer wall of hub bearing position 1b, and makes positioning reinforcing rib 1d protrusion connection splines 1c
Top surface, reinforce in this way, on the one hand the positioning reinforcing rib 1d added can play the role of intensity to connection spline 1c, another party
Face can also play the role of brake disc ontology 2a installation positioning；Finally, by being designed to the first half-round cross hole 1e through fixed
On the one hand position reinforcing rib 1d facilitates the installation of expandable fixation assemblies 3 in this way, when on the other hand dismantling, may expand fixed group
Part 3 can support out from one end towards wheelboss flange 1a of full circle through-hole, to facilitate the dismounting of expandable fixation assemblies 3.
Above-mentioned expandable fixation assemblies 3 include expansion axle sleeve 3a, expansion axis pin 3b and expansion nut 3c, the expansion axle sleeve
The side wall of 3a is equipped with inflation openings 3d, and the inner surface of the expansion axle sleeve 3a is the conical surface, outside one end of the expansion axis pin 3b
Surface is the matched conical surface of inner surface with the expansion axle sleeve 3a, and the other end outer surface of the expansion axis pin 3b is equipped with spiral shell
Line, the expansion axle sleeve 3a are sleeved on the conical surface end of the expansion axis pin 3b, and the expansion nut 3c is sleeved on the expansion
On the end of thread of axis pin 3b, the expansion axle sleeve 3a and expansion axis pin 3b expansions are mounted in the full circle through-hole.It is described
Outer diameter of the end face equipped with locating flange 3e, the locating flange 3e of expansion nut 3c towards the expansion axle sleeve 3a are more than institute
State the internal diameter of full circle through-hole.By adding locating flange 3e on the end face of expansion nut 3c direction expansion axle sleeves 3a, in this way, can
It is fixed by being against brake disc ontology 2a on the basis of locating flange 3e towards on the disk of 1 side of wheel hub, then installation is inflatable
Component 3, the installation site to ensure expandable fixation assemblies 3 are correct.
Each full circle through-hole is corresponded to is located at the same of the hub bearing position 1b there are one the flange ventilation hole 1g
On busbar.By corresponding to each full circle through-hole, there are one the same busbares that the flange ventilation hole 1g is located at hub bearing position 1b
On, i.e., each full circle through-hole be located on the same busbar of hub bearing position 1b with corresponding flange ventilation hole 1g so that it is convenient to from
Auxiliary dismounting expandable fixation assemblies 3 at flange ventilation hole 1g.Ventilation hole is equipped between the two neighboring flange ventilation hole 1g
Reinforcing rib 1h.By adding ventilation hole reinforcing rib 1h between two flange ventilation hole 1g, flange ventilation hole 1g can be increased in this way
Intensity.
The internal diameter of above-mentioned brake disc ontology 2a towards the disk of 1 side of the wheel hub is less than the brake disc ontology 2a backwards
The internal diameter of the disk of 1 side of the wheel hub.It is designed to by the internal diameter by brake disc ontology 2a towards the disk of 1 side of wheel hub small
In brake disc ontology 2a backwards to the internal diameter of the disk of 1 side of the wheel hub, it can guarantee that the both sides of this assembly are perforations in this way, from
And improve radiating efficiency.The quantity of the flange ventilation hole 1g is more than the quantity of the spline ventilation hole 1f.By by flange
The quantitative design of ventilation hole 1g can increase intake in this way at the quantity more than spline ventilation hole 1f.Each spline ventilation
Hole 1f, which is corresponded to, to be located at there are one the flange ventilation hole 1g on the same busbar of the hub bearing position 1b.By designing each flower
Key ventilation hole 1f, which is corresponded to, to be located at there are one flange ventilation hole 1g on the same busbar of hub bearing position 1b, i.e., each spline ventilation hole
1f is located at corresponding flange ventilation hole 1g on the same busbar of hub bearing position 1b, is conducive to the flowing of air in this way, improves
Radiating efficiency.
Above-mentioned spline ventilation hole 1f is arc structure.By the way that spline ventilation hole 1f is designed as arc structure, such side
Face is conducive to the flowing of air, improves radiating efficiency, is on the other hand avoided that stress concentration, has ensured that connection spline 1c's is strong
Degree.The flange ventilation hole 1g is arc structure.It is on the one hand advantageous in this way by the way that flange ventilation hole 1g is designed as arc structure
In the flowing of air, radiating efficiency is improved, is on the other hand avoided that stress concentration, has ensured the intensity of wheelboss flange 1a.Institute
The quantity for stating expandable fixation assemblies 3 is 5 groups, and expandable fixation assemblies 3 described in 5 groups are evenly distributed in the circumferential direction.
The assembly method of above-mentioned wheel hub brake disk assembly is as follows：
A, the connection keyway 2b on the brake disc ontology 2a is directed at the connection spline on the wheel hub 1
1c, and the first half-round cross hole 1e is made to be directed at the corresponding second half-round cross hole 2c, pass through the mutually matched company
It meets spline 1c and the connection keyway 2b brake disc ontology 2a radial positionings are mounted on wheel hub 1；
B, by the brake disc ontology 2a axial compressions on the positioning reinforcing rib 1d；
C, the expandable fixation assemblies 3 are inserted by the second half-round cross hole 2c and the first half-round cross hole 1e
In the full circle through-hole formed, and the expandable fixation assemblies 3 are expanded so that the brake disc ontology 2a axial restraints are installed
On the wheel hub 1.
Wherein, when assembling expandable fixation assemblies 3, set is first installed the expansion axle sleeve 3a's and expansion nut 3c
The expansion axis pin 3b is inserted into the full circle through-hole, and makes the locating flange 3e with the full circle through-hole backwards to described
The end face of wheelboss flange 1a offsets, and then tightening the expansion nut 3c makes the expandable fixation assemblies 3 expand.
The present embodiment passes through the along the circumferential direction company of opening up on inner rings of the brake disc ontology 2a towards the disk of 1 side of wheel hub
Keyway 2b is met, and the position of corresponding installation brake disc ontology 2a along the circumferential direction adds and connects on the outer wall of hub bearing position 1b
The matched connection spline 1c of keyway 2b are met, such brake disc 2 can be mounted on wheel hub 1 by spline connection type radial positioning
On, brake disc 2 then can be axially installed in by wheel by the cooperation between expandable fixation assemblies 3 and full circle through-hole again
On hub 1, this combination mounting means is as a result of spline structure, and connection spline 1c is played mainly by force effect, so can be swollen
Swollen fixation kit 3 is only merely to play positioning action, and stress is very small, smaller so as to be sized to, in order to
The maintenance of installation and later stage, and service life is longer；Since the load that spline can bear is larger, so further increasing
Service life；Since the stress point of spline and the brake force of brake disc are in approximately the same plane, so moment of flexure is not will produce, to
The force status of spline is significantly improved, and then further improves service life；Since brake disc ontology 2a is direct
It is mounted on the 1b of hub bearing position by spline structure, so brake disc 2 is not necessarily to redesign brake disc sleeve, to greatly subtract
The light weight of this assembly, is conducive to the lightweight of vehicle, more energy efficient environmental protection；By in the root of two neighboring connection spline 1c
Between open up spline ventilation hole 1e, and along the circumferential direction open up several on wheelboss flange 1a and can be connected to spline ventilation hole 1e
Flange ventilation hole 1f, such air can circulate in this assembly, to greatly increase the radiating efficiency of this assembly, ensure
Traffic safety；By in connection spline 1c towards corresponding on the outer wall of hub bearing position 1b on the side of wheelboss flange 1a
Position adds positioning reinforcing rib 1d, and makes the top surface of positioning reinforcing rib 1d protrusion connection splines 1c, in this way, the positioning added is reinforced
On the one hand muscle 1d can play the role of intensity to connection spline 1c and reinforce, on the other hand can also play peace to brake disc ontology 2a
Set the effect of position；By the way that the first half-round cross hole 1e is designed to that on the one hand facilitating in this way can be swollen through positioning reinforcing rib 1d
The installation of swollen fixation kit 3, when on the other hand dismantling, expandable fixation assemblies 3 can be from full circle through-hole towards wheelboss flange 1a
One end support out, to facilitate the dismounting of expandable fixation assemblies 3.
In addition, the present embodiment by expansion nut 3c towards adding locating flange 3e on the end face of expansion axle sleeve 3a, this
Sample can be against brake disc ontology 2a towards on the disk of 1 side of wheel hub on the basis of locating flange 3e, and then installation is inflatable
Fixation kit 3, the installation site to ensure expandable fixation assemblies 3 are correct；By corresponding to each full circle through-hole, there are one institutes
It states flange ventilation hole 1g to be located on the same busbar of hub bearing position 1b, i.e., each full circle through-hole and corresponding flange ventilation hole 1g
The auxiliary dismounting expandable fixation assemblies 3 on the same busbar of hub bearing position 1b so that it is convenient at flange ventilation hole 1g；
By adding ventilation hole reinforcing rib 1h between two flange ventilation hole 1g, the intensity of flange ventilation hole 1g can be increased in this way；It is logical
It crosses and the internal diameter of brake disc ontology 2a towards the disk of 1 side of wheel hub is designed to be less than brake disc ontology 2a backwards to the wheel hub 1
The internal diameter of the disk of side can guarantee that the both sides of this assembly are perforations, to improve radiating efficiency in this way；By by flange
The quantitative design of ventilation hole 1g can increase intake in this way at the quantity more than spline ventilation hole 1f；By designing each spline
Ventilation hole 1f, which is corresponded to, to be located at there are one flange ventilation hole 1g on the same busbar of hub bearing position 1b, i.e., each spline ventilation hole 1f
It is located on the same busbar of hub bearing position 1b with corresponding flange ventilation hole 1g, is conducive to the flowing of air in this way, improves
Radiating efficiency；By the way that spline ventilation hole 1f is designed as arc structure, is on the one hand conducive to the flowing of air in this way, improves scattered
On the other hand the thermal efficiency is avoided that stress concentration, ensured the intensity of connection spline 1c；By the way that flange ventilation hole 1g is designed as
On the one hand arc structure is conducive to the flowing of air in this way, improve radiating efficiency, is on the other hand avoided that stress concentration, protects
The intensity of wheelboss flange 1a is hindered.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (3)
1. a kind of pin type brake disc for commercial car, the brake disc includes brake disc ontology (2a), which is characterized in that institute
Diameter is used for towards being along the circumferential direction equipped with several on the inner ring of the disk of wheel hub (1) side when stating brake disc ontology (2a) installation
To connection keyway (2b) of the location and installation on the wheel hub (1), it is equipped in an axial direction at least one connection keyway (2b)
The second half-round cross hole (2c) of the brake disc ontology (2a) is installed for axial restraint, second half-round cross hole (2c) is axial
Through the corresponding connection keyway (2b).
2. being used for the pin type brake disc of commercial car as described in claim 1, which is characterized in that the brake disc ontology (2a)
It is less than circle of the brake disc ontology (2a) backwards to the wheel hub (1) side towards the internal diameter of the disk of the wheel hub (1) side
The internal diameter of disk.
3. being used for the pin type brake disc of commercial car as described in claim 1, which is characterized in that second half-round cross hole
The quantity of (2c) is 5, and 5 second half-round cross holes (2c) are evenly distributed in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721893865.0U CN207893021U (en) | 2017-12-28 | 2017-12-28 | Pin type brake disc for commercial car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721893865.0U CN207893021U (en) | 2017-12-28 | 2017-12-28 | Pin type brake disc for commercial car |
Publications (1)
| Publication Number | Publication Date |
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| CN201721893865.0U Active CN207893021U (en) | 2017-12-28 | 2017-12-28 | Pin type brake disc for commercial car |
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