CN209394982U - A kind of tensioning holding structure of pre-track board prestress muscle - Google Patents
A kind of tensioning holding structure of pre-track board prestress muscle Download PDFInfo
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- CN209394982U CN209394982U CN201822001482.9U CN201822001482U CN209394982U CN 209394982 U CN209394982 U CN 209394982U CN 201822001482 U CN201822001482 U CN 201822001482U CN 209394982 U CN209394982 U CN 209394982U
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Abstract
The utility model discloses a kind of tensioning of pre-track board prestress muscle to keep structure, including first gear, second gear, the first driving part, the second driving part, attachment base, guide rail, elastomeric element, and it is connected to the tension rod at deformed bar both ends.Structure is kept with a kind of tensioning of pre-track board prestress muscle of the utility model, after deformed bar completes tensioning, elastomeric element is when first gear periphery is bonded second gear periphery, pressure is provided to first gear, guarantee that its gear teeth can engage the tooth socket of second gear after first gear rotates, first driving part drives first gear rotation, first gear rotation drives second gear rotation, it is moved axially while second gear rotates along tension rod, it is close and fit in railway plate die wall, fastening and self-locking function using threaded connection, persistently keep the tensile state of deformed bar, the loss of prestress for overcoming existing anchor plate mode may cause, guarantee that rail plate tension is qualified.
Description
Technical field
The utility model relates to technical field of rail traffic, in particular to the tensioning of a kind of pre-track board prestress muscle is protected
Hold structure.
Background technique
In previous high-speed rail plate production process, either pre-tensioning system or post stretching are all using artificial single tendon stretch
Deformed bar, as shown in Figure 1, several deformed bar both ends being arranged in railway plate die 1 are separately connected tension rod 2,
Tension rod 2 stretches out on the outside of 1 wall of railway plate die, and there are all deformed bar tensioning journeys on railway plate die 1 for this mode
Degree is different, influences track plates performance and even result in track plates to scrap；In order to overcome the above problem and improve track plates production
Automatization level uses track plates unit flowing water method production line now, all pre- answers as shown in Fig. 2, unilateral to track plates
Power reinforcing bar uses 3 Integral synchronous tensioning of tensioning equipment, after tensioning in place, is inserted into anchor between 1 wall of tension rod 2 and railway plate die
Solid plate makes deformed bar keep tensile state.
But the production of unit flowing water method is there are anchor plate that be inserted into the prestress steel not in place that will cause after tensioning rib prestressed
Loss, influences track plates performance, causes track plates not up to standard.
Utility model content
The purpose of the utility model is to overcome the unit flowing water method production in the presence of the prior art, there are anchor plates to insert
Enter the deformed bar loss of prestress not in place that will cause after tensioning, influences track plates performance, cause track plates not up to standard
Above-mentioned deficiency, the tensioning for providing a kind of pre-track board prestress muscle keep structure.
In order to realize above-mentioned purpose of utility model, the utility model provides following technical scheme:
A kind of tensioning holding structure of pre-track board prestress muscle, including the second friction pulley, the first friction pulley, the first drive
Dynamic component, and be connected to the tension rod at deformed bar both ends, the tensioning club body are equipped with external thread section, and described second
Internal thread hole is arranged in friction pulley axial centre, and the internal thread hole is adapted to the external thread section, the first driving part connection
First friction pulley, the first friction pulley periphery is for being bonded the second friction pulley periphery, first driving part
For driving first friction pulley to rotate, the first friction pulley friction drives second friction pulley to rotate, and described second
It is moved axially while friction pulley rotates along the tension rod.
Wherein, after the deformed bar completes tensioning, the length of the external thread section on the tension rod meets institute
The stroke for stating the second friction pulley makes its rotation fit in railway plate die wall；For example, after the deformed bar completes tensioning, institute
Stating at railway plate die wall still has the external thread section, then second friction pulley can be rotated directly and fit in institute
State railway plate die wall；If after the deformed bar completes tensioning, the external thread section is more than the railway plate die wall,
There is light bar segment between the i.e. described railway plate die wall and the external thread section, then, second friction pulley is close to the rail
The side of guidance tape mold wall connects sleeve, and after external thread section rotation, the sleeve can be bonded second friction pulley
In the railway plate die wall；It can make the external thread section that there is sufficient length in this way, meet the second friction rotation
It is dynamic to fit in railway plate die wall.
Using a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, the prestress steel
After muscle completes tensioning, first driving part drives the second friction pulley rotation, and the first friction pulley friction drives institute
The rotation of the second friction pulley is stated, is moved axially while second friction pulley rotates along the tension rod, it is close and compress fitting
In railway plate die wall, just by tensioning equipment pressure release after the completion of the locking of the second friction pulley, the fastening of threaded connection and self-locking is utilized
Function persistently keeps the tensile state of the deformed bar, the prestressing force for overcoming existing anchor plate locking mode may cause
Loss guarantees that rail plate tension is qualified.
Preferably, it further includes the second driving part, attachment base and guide rail which, which keeps structure, and the attachment base sliding connects
It is connected to the guide rail, first driving part is set on the attachment base, and second driving part is for driving the company
Joint chair is moved along the guide rail, and the first friction pulley periphery is made to be bonded or leave the second friction pulley periphery.
Preferably, one end of the guide rail is connected to ground or is connected on the crossbeam of tensioning equipment.
Preferably, it further includes elastomeric element which, which keeps structure, between the attachment base and first driving part
The elastomeric element is set, the attachment base connects the elastomeric element, and the elastomeric element connects first driving part,
The elastic force direction that the elastomeric element provides is arranged along the guide rail direction.
Using this structure setting, the elastomeric element is bonded the second friction pulley week in the first friction pulley periphery
When edge, pressure is provided to first friction pulley, increases the frictional force between first friction pulley and second friction pulley.
Preferably, it further includes elastomeric element which, which keeps structure, and the guide rail is equipped with boss, and the attachment base is located at
Above the boss, the elastomeric element is sheathed on the guide rail, and between the attachment base and the boss.
Using this structure setting, the elastomeric element is bonded the second friction pulley week in the first friction pulley periphery
When edge, pressure is provided to first friction pulley, increases the frictional force between first friction pulley and second friction pulley.
Preferably, the elastomeric element is spring.
Preferably, after the deformed bar tensioning, second friction pulley and first friction pulley dislocation contact,
And first friction pulley is close to railway plate die wall.
Using this structure setting, even if after the deformed bar tensioning, second friction pulley and described first rubs
It wipes wheel still to be able to contact, meets first friction pulley rotation and drive the second friction pulley rotation, while making described the
Two friction pulleys have biggish stroke, fit in the railway plate die wall after meeting its rotation, keep the deformed bar
Tensile state, prevent loss of prestress.
Preferably, the thickness of second friction pulley is greater than the thickness of first friction pulley.
Using this structure setting, the row that second friction pulley is moved along the external thread section can be further increased
Journey.
Preferably, the periphery of the periphery of second friction pulley and first friction pulley is equipped with Argyle.
Preferably, groove, the groove is arranged close to the side of railway plate die wall in the second friction pulley axial centre
The nut that interior setting can be rotated with second friction pulley, the nut are adapted to the external thread section, the nut and described
Groove is connected by key, and can only replace nut in the case where thread damage fails, and does not have to replace second friction pulley.
Preferably, the opposite other end for connecting the deformed bar of the tension rod is equipped with claw clamping part, described
Claw clamping part puts a device for being adapted to.
Preferably, first driving part includes servo motor and retarder, and the servo motor connects the deceleration
Device, the retarder connect first friction pulley.
Preferably, the outside of railway plate die wall is equipped with thrust bearing, and the thrust bearing is connected to second friction
Take turns side wall.
Using this structure setting, the thrust bearing, when putting rotation, will fit in described for the tension rod
The sliding friction of railway plate die wall is changed into rolling friction, reduces loss of machine of torque, and most torques is made to act on described
The threaded connection of pull rod and the deformed bar reduces the moment values for putting Zhang Suoxu and puts the power of device motor and matches
It sets, while reducing the abrasion of the railway plate die and the tension rod, increase service life.
The tensioning that the utility model additionally provides a kind of pre-track board prestress muscle keeps structure, including first gear,
Second gear, the first driving part, the second driving part, attachment base, guide rail, elastomeric element, and it is connected to deformed bar
The tension rod at both ends, the tensioning club body are equipped with external thread section, and internal thread hole, institute is arranged in the second gear axial centre
It states internal thread hole and is adapted to the external thread section, the attachment base is slidably connected to the guide rail, and the attachment base connects the bullet
Property component, first driving part connects the first gear, and first driving part is for driving the first gear
Rotation, second driving part are bonded the first gear periphery for driving the attachment base to move along the guide rail
Or the second gear periphery is left, the elastic force direction that the elastomeric element provides is arranged along the guide rail direction, described
Elastomeric element is used to provide elastic force to first driving part.
Using a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, the prestress steel
After muscle completes tensioning, the elastomeric element is when the first gear periphery is bonded the second gear periphery, to described first
Gear provides pressure, guarantees after first gear rotation that its gear teeth can engage the tooth socket of the second gear, and described first
Driving part drives the first gear rotation, and the first gear rotation drives the second gear rotation, second tooth
It is moved axially while wheel rotation along the tension rod, it is close and fit in railway plate die wall, utilize the fastening of threaded connection
And self-locking function, the tensile state of the deformed bar is persistently kept, overcome that existing anchor plate mode may cause pre- answers
Power loss guarantees that rail plate tension is qualified.
Preferably, the elastomeric element, the elastomeric element are set between the attachment base and first driving part
Connect first driving part.
Preferably, the guide rail is equipped with boss, and the attachment base is located above the boss, and the elastomeric element is arranged
In on the guide rail, and between the attachment base and the boss.
Preferably, the second gear axial centre is in the side of railway plate die wall setting groove, the groove
The nut that can be rotated with the second gear is set, and the nut is adapted to the external thread section.
Preferably, the outside of 1 wall of railway plate die is equipped with thrust bearing, and the thrust bearing is connected to the second gear
The outer diameter of side wall, the thrust bearing is less than the second gear root diameter.
Preferably, the opposite other end for connecting the deformed bar of the tension rod is equipped with claw clamping part, described
Claw clamping part puts a device for being adapted to.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1, with a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, the prestressing force
After reinforcing bar completes tensioning, first driving part drives the first friction pulley rotation, and the first friction pulley friction drives
Second friction pulley rotation, moves axially while second friction pulley rotates along the tension rod, close and fit in
Railway plate die wall, fastening and self-locking function using threaded connection, persistently keeps the tensile state of the deformed bar, gram
The loss of prestress that existing anchor plate mode may cause is taken, guarantees that rail plate tension is qualified；
2, with a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, the elastic portion
Part provides pressure when the first friction pulley periphery is bonded the second friction pulley periphery, to first friction pulley, increases
Frictional force between first friction pulley and second friction pulley；
3, with a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, even if described pre-
After stress reinforced bar stretching, second friction pulley and first friction pulley still are able to contact, and meet first friction pulley
Rotation drives the second friction pulley rotation, while second friction pulley being made to have biggish stroke, after meeting its rotation
The railway plate die wall is fitted in, the tensile state of the deformed bar is kept, prevents loss of prestress；
4, with a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, described second rubs
The thickness for wiping wheel can be further increased described second and be rubbed greater than the thickness of first friction pulley using this structure setting
Wipe the stroke that wheel is moved along the external thread section；
5, with a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, the thrust axis
It holds for the tension rod when putting rotation, the sliding friction for fitting in the railway plate die wall is changed into rolling and is rubbed
It wipes, reduces loss of machine of torque, most torques is made to act on the threaded connection of the tension rod Yu the deformed bar, reduce
It puts the moment values of Zhang Suoxu and puts a power configuration for device motor, while reducing the railway plate die and the tension rod
Abrasion, increase service life；
6, with a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, the prestressing force
After reinforcing bar completes tensioning, the elastomeric element is when the first gear periphery is bonded the second gear periphery, to described the
One gear provides pressure, guarantees after first gear rotation that its gear teeth can engage the tooth socket of the second gear, and described the
One driving part drives the first gear rotation, and the first gear rotation drives the second gear to rotate, and described second
It is moved axially while gear rotates along the tension rod, it is close and fit in railway plate die wall, utilize the tight of threaded connection
Gu and self-locking function, persistently keep the tensile state of the deformed bar, overcome existing anchor plate mode may cause pre-
Stress loss guarantees that rail plate tension is qualified.
Detailed description of the invention
Fig. 1 is railway plate die, the structure of deformed bar and tension rod, connection and positional diagram；
Fig. 2 is tensioning equipment, the structure of railway plate die and tension rod, connection and positional diagram；
Fig. 3 is a kind of structural schematic diagram that tensioning described in the utility model keeps structure；
Fig. 4 is the main view of Fig. 3；
Fig. 5 is the schematic diagram in Fig. 4 after the movement of the second friction pulley；
Fig. 6 is the structural schematic diagram that tensioning described in embodiment 1 keeps structure；
Fig. 7 is the structural schematic diagram that tensioning described in embodiment 2 keeps structure；
Fig. 8 is the connection and positional relationship that railway plate die, tension rod and tensioning described in the utility model keep structure
Schematic diagram；
Fig. 9 is the structural schematic diagram that tensioning described in embodiment 4 keeps structure.
Marked in the figure: 1- railway plate die, 2- tension rod, 21- external thread section, 22- claw clamping part, 3- tensioning dress
It sets, the second friction pulley of 4-, 41- second gear, the first friction pulley of 5-, 51- first gear, the first driving part of 6-, 7- attachment base,
8- guide rail, 81- boss, 9- elastomeric element.
Specific embodiment
The utility model is described in further detail below with reference to test example and specific embodiment.But it should not be by this
The range for being interpreted as the above-mentioned theme of the utility model is only limitted to embodiment below, all to be realized based on the content of the present invention
Technology belongs to the scope of the utility model.
Embodiment 1
As shown in Fig. 3-6,8, a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, packet
Include the second friction pulley 4, the first friction pulley 5, the first driving part 6, the second driving part, attachment base 7, guide rail 8, pedestal, elasticity
Component 9, and it is connected to the tension rod 2 at deformed bar both ends.
2 shaft of tension rod is equipped with external thread section 21, and internal thread hole is arranged in 4 axial centre of the second friction pulley,
The internal thread hole is adapted to the external thread section 21, and first driving part 6 connects first friction pulley 5, the connection
Seat 7 is slidably connected to the guide rail 8, and the attachment base 7 connects the elastomeric element 9, and the elastomeric element 9 connects the base
Seat, the pedestal connect first driving part 6, and the elastic force direction that the elastomeric element 9 provides is along 8 direction of guide rail
Setting, first driving part 6 is for driving first friction pulley 5 to rotate, and second driving part is for driving institute
It states attachment base 7 to move along the guide rail 8,5 periphery of the first friction pulley is made to be bonded or leave second friction pulley 4 weeks
Edge, when 5 periphery of the first friction pulley is bonded 4 periphery of the second friction pulley, the friction of the first friction pulley 5 drives described the
The rotation of two friction pulleys 4, moves axially while second friction pulley 4 rotates along the tension rod 2, and the elastomeric element 9 is
Spring.
As a preferred embodiment of the present embodiment, the thickness of second friction pulley 4 is greater than first friction pulley 5
Thickness；As shown in figure 4, second friction pulley 4 and first friction pulley 5 dislocation connect after the deformed bar tensioning
Touching, and first friction pulley 5 is close to 1 wall of railway plate die；Using this structure setting, even if the deformed bar tensioning
Afterwards, second friction pulley 4 and first friction pulley 5 still are able to contact, and meet the rotation of the first friction pulley 5 and drive institute
The rotation of the second friction pulley 4 is stated, while making second friction pulley 4 that there is biggish stroke, fits in institute after meeting its rotation
1 wall of railway plate die is stated, the tensile state of the deformed bar is kept, prevents loss of prestress, second friction pulley 4
Thickness can further increase greatly the stroke that second friction pulley 4 is moved along the external thread section 21.
As a preferred embodiment of the present embodiment, the periphery of second friction pulley 4 and first friction pulley 5
Periphery is equipped with Argyle；Groove is arranged close to the side of 1 wall of railway plate die in second friction pulley, 4 axial centre,
The nut that setting can be rotated with second friction pulley 4 in the groove, the nut is adapted to the external thread section 21, described
Nut and the groove are connected by key, and can only replace nut in the case where thread damage fails, and do not have to replace described the
Two friction pulleys 4；The opposite other end for connecting the deformed bar of the tension rod 2 is equipped with claw clamping part 22, the pawl
Formula clamping part 22 puts a device for being adapted to；First driving part 6 includes servo motor and retarder, the servo electricity
Machine connects the retarder, and the retarder connects first friction pulley 5.
As a preferred embodiment of the present embodiment, the outside of 1 wall of railway plate die is equipped with thrust bearing, the thrust axis
It holds and is connected to 4 side wall of the second friction pulley, using this structure setting, the thrust bearing is being put for the tension rod 2
When opening rotation, the sliding friction for fitting in 1 wall of railway plate die is changed into rolling friction, reduces loss of machine of torque, is made absolutely
Most of torque acts on the threaded connection of the tension rod 2 with the deformed bar, reduce put the moment values of Zhang Suoxu with
And a power configuration for device motor is put, while reducing the abrasion of the railway plate die 1 and the tension rod 2, increase and uses
Service life.
With a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, the prestress steel
After muscle completes tensioning, the elastomeric element 9 is when 5 periphery of the first friction pulley is bonded 4 periphery of the second friction pulley, to institute
It states the first friction pulley 5 and pressure is provided, increase the frictional force between first friction pulley 5 and second friction pulley 4, described the
One driving part 6 drives first friction pulley 5 to rotate, and the friction of the first friction pulley 5 drives described 4 turns of second friction pulley
It is dynamic, it is moved axially while second friction pulley 4 rotates along the tension rod 2, it is close and fit in 1 wall of railway plate die,
Fastening and self-locking function using threaded connection, persistently keep the tensile state of the deformed bar, overcome existing anchor plate
The loss of prestress that mode may cause guarantees that rail plate tension is qualified.
Embodiment 2
As shown in Fig. 3-5,7-8, a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model,
Including the second friction pulley 4, the first friction pulley 5, the first driving part 6, the second driving part, attachment base 7, guide rail 8, pedestal, bullet
Property component 9, and it is connected to the tension rod 2 at deformed bar both ends, difference from example 1 is that, on the guide rail 8
Equipped with boss 81, the attachment base 7 is located at 81 top of boss, and the elastomeric element 9 is sheathed on the guide rail 8, and position
Between the attachment base 7 and the boss 81, the elastomeric element 9 is spring.
The diameter of the boss 81 is greater than the outer diameter of the spring, prevents the spring (especially in the case where stress) from wearing
It crosses the boss 81 to fall down, second driving part drives the attachment base 7 to move down along the guide rail 8, the company
Joint chair 7 drives first driving part 6 and first friction pulley 5 to move down, the 5 peripheral contact institute of the first friction pulley
4 periphery of the second friction pulley is stated, while the attachment base 7 contacts the elastomeric element 9, the elastomeric element 9 is to the attachment base 7
The least power of branch is generated, as second driving part drives the attachment base 7 to have the tendency that continuing to move down, due to this
The first friction pulley of Shi Suoshu 5 contacts second friction pulley 4, and relatively described second friction pulley 4 of first friction pulley 5 is static,
The least power of branch is converted into the preload pressure of relatively described second friction pulley 4 of first friction pulley 5.
With a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, the prestress steel
After muscle completes tensioning, the elastomeric element 9 is when 5 periphery of the first friction pulley is bonded 4 periphery of the second friction pulley, to institute
It states the first friction pulley 5 and pressure is provided, increase the frictional force between first friction pulley 5 and second friction pulley 4, described the
One driving part 6 drives first friction pulley 5 to rotate, and the friction of the first friction pulley 5 drives described 4 turns of second friction pulley
It is dynamic, it is moved axially while second friction pulley 4 rotates along the tension rod 2, it is close and fit in 1 wall of railway plate die,
Fastening and self-locking function using threaded connection, persistently keep the tensile state of the deformed bar, overcome existing anchor plate
The loss of prestress that mode may cause guarantees that rail plate tension is qualified.
Embodiment 3
A kind of tensioning of pre-track board prestress muscle described in the utility model keeps structure, the difference with embodiment 1
Place is, the present embodiment by embodiment 1 the second friction pulley 4 and the first friction pulley 5 replace with 41 He of second gear respectively
First gear 51.
2 shaft of tension rod is equipped with external thread section 21, and internal thread hole, institute is arranged in 41 axial centre of second gear
It states internal thread hole and is adapted to the external thread section 21, the attachment base 7 is slidably connected to the guide rail 8, and the attachment base 7 connects institute
State elastomeric element 9, the elastomeric element 9 connects the pedestal, and the pedestal connects first driving part 6, and described first
Driving part 6 connects the first gear 51, and first driving part 6 is described for driving the first gear 51 to rotate
Second driving part for driving the attachment base 7 to move along the guide rail 8, make 51 periphery of first gear be bonded or from
41 periphery of second gear is opened, the elastic force direction that the elastomeric element 9 provides is arranged along 8 direction of guide rail.
With a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, the prestress steel
After muscle completes tensioning, the elastomeric element 9 is when 51 periphery of first gear is bonded 41 periphery of second gear, to described
First gear 51 provides pressure, guarantees that its gear teeth can engage the tooth of the second gear 41 after the first gear 51 rotates
Slot, first driving part 6 drive the first gear 51 to rotate, and the rotation of first gear 51 drives the second gear
41 rotations, move axially while the second gear 41 rotates along the tension rod 2, close and fit in railway plate die 1
Wall, fastening and self-locking function using threaded connection, persistently keeps the tensile state of the deformed bar, overcomes existing anchoring
The loss of prestress that plate mode may cause guarantees that rail plate tension is qualified.
Embodiment 4
As Figure 8-9, a kind of tensioning of pre-track board prestress muscle described in the utility model keeps structure, with reality
Apply example 2 the difference is that, the present embodiment by embodiment 2 the second friction pulley 4 and the first friction pulley 5 replace with respectively
Two gears 41 and first gear 51.
Second driving part drives the attachment base 7 to move down along the guide rail 8, and the attachment base 7 drives institute
It states the first driving part 6 and the first gear 51 moves down, second gear 41 described in 51 peripheral contact of first gear
Periphery, while the attachment base 7 contacts the elastomeric element 9, it is least that the elastomeric element 9 generates branch to the attachment base 7
Power, as second driving part drives the attachment base 7 to have the tendency that continuing to move down, due to first tooth at this time
The 51 contact second gear 41 of wheel, the relatively described second gear 41 of the first gear 51 is static, and the least power of branch turns
The preload pressure for turning to the relatively described second gear 41 of the first gear 51, as subsequent first driving part 6 drives
The first gear 51 rotates, and the gear teeth of the first gear 51 can be caught in the tooth socket of the second gear 41, completes institute
State the engagement of second gear 41 and the first gear 51.
With a kind of tensioning holding structure of pre-track board prestress muscle described in the utility model, the prestress steel
After muscle completes tensioning, the elastomeric element 9 is when 51 periphery of first gear is bonded 41 periphery of second gear, to described
First gear 51 provides pressure, guarantees that its gear teeth can engage the tooth of the second gear 41 after the first gear 51 rotates
Slot, first driving part 6 drive the first gear 51 to rotate, and the rotation of first gear 51 drives the second gear
41 rotations, move axially while the second gear 41 rotates along the tension rod 2, close and fit in railway plate die 1
Wall, fastening and self-locking function using threaded connection, persistently keeps the tensile state of the deformed bar, overcomes existing anchoring
The loss of prestress that plate mode may cause guarantees that rail plate tension is qualified.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of tensioning of pre-track board prestress muscle keeps structure, which is characterized in that including first gear (51), the second tooth
(41), the first driving part (6), the second driving part, attachment base (7), guide rail (8), elastomeric element (9) are taken turns, and are connected to
The tension rod (2) at deformed bar both ends, tension rod (2) shaft are equipped with external thread section (21), the second gear
(41) internal thread hole is arranged in axial centre, and the internal thread hole is adapted to the external thread section (21), and attachment base (7) sliding connects
It is connected to the guide rail (8), attachment base (7) connection elastomeric element (9), described in the first driving part (6) connection
First gear (51), first driving part (6) is for driving the first gear (51) to rotate, second driving part
For driving the attachment base (7) to move along the guide rail (8), the elastic force direction that the elastomeric element (9) provides is along described
The setting of guide rail (8) direction.
2. tensioning according to claim 1 keeps structure, which is characterized in that the attachment base (7) and first driving
It is arranged between component (6) elastomeric element (9), the elastomeric element (9) connects first driving part (6).
3. tensioning according to claim 1 keeps structure, which is characterized in that the guide rail (8) is equipped with boss (81), institute
It states attachment base (7) to be located above the boss (81), the elastomeric element (9) is sheathed on the guide rail (8), and is located at described
Between attachment base (7) and the boss (81).
4. tensioning according to claim 1 keeps structure, which is characterized in that second gear (41) axial centre is close
Groove is arranged in the side of railway plate die (1) wall, and the nut that can be rotated with the second gear (41) is arranged in the groove,
The nut is adapted to the external thread section (21).
5. tensioning according to claim 1 keeps structure, which is characterized in that the second gear (41) is close to track template die
The side of tool (1) wall is connected with thrust bearing, and the thrust bearing is sheathed on the outside of the tension rod (2) shaft.
6. tensioning according to claim 1-5 keeps structure, which is characterized in that the tension rod (2) is opposite to be connected
The other end for connecing the deformed bar is equipped with claw clamping part (22), and the claw clamping part (22) is opened for being adapted to put
Device.
7. a kind of tensioning of pre-track board prestress muscle keeps structure, which is characterized in that including the first friction pulley (5), second
Friction pulley (4), the first driving part (6), and it is connected to the tension rod (2) at deformed bar both ends, tension rod (2) bar
External thread section (21) are equipped with it, internal thread hole is arranged in the second friction pulley (4) axial centre, and the internal thread hole is adapted to institute
It states external thread section (21), first driving part (6) connects first friction pulley (5), the first friction pulley (5) periphery
For being bonded the second friction pulley (4) periphery, first driving part (6) is for driving first friction pulley (5) to turn
It is dynamic.
8. tensioning according to claim 7 keeps structure, which is characterized in that further include the second driving part, attachment base (7)
With guide rail (8), the attachment base (7) is slidably connected to the guide rail (8), and first driving is arranged on the attachment base (7)
Component (6), second driving part is for driving the attachment base (7) to move along the guide rail (8).
9. tensioning according to claim 8 keeps structure, which is characterized in that further include elastomeric element (9), the attachment base
(7) it is arranged between first driving part (6) elastomeric element (9), the attachment base (7) connects the elastomeric element
(9), the elastomeric element (9) connects first driving part (6), the elastic force direction edge that the elastomeric element (9) provides
Guide rail (8) the direction setting.
10. tensioning according to claim 8 keeps structure, which is characterized in that further include elastomeric element (9), the guide rail
(8) boss (81) are equipped with, the attachment base (7) is located above the boss (81), and the elastomeric element (9) is sheathed on described
On guide rail (8), and between the attachment base (7) and the boss (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822001482.9U CN209394982U (en) | 2018-11-30 | 2018-11-30 | A kind of tensioning holding structure of pre-track board prestress muscle |
Applications Claiming Priority (1)
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| CN109262827A (en) * | 2018-11-30 | 2019-01-25 | 四川升腾元创机电技术研究有限公司 | A kind of tensioning holding structure of pre-track board prestress muscle |
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| CN109262827A (en) * | 2018-11-30 | 2019-01-25 | 四川升腾元创机电技术研究有限公司 | A kind of tensioning holding structure of pre-track board prestress muscle |
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