WO2018028555A1 - Tensioning device for prefabricated track slab and synchronous relaxation device for pre-tensioned prefabricated track slab - Google Patents

Abstract

Disclosed is a tensioning device for a prefabricated track slab, comprising: a side face tensioning mechanism (3), an end face tensioning mechanism (4), a power mechanism (2) connected to the side face tensioning mechanism (3) and the end face tensioning mechanism (4), and a control mechanism (1). In the tensioning device for the prefabricated track slab, a plurality of tensioning units are tensioned in the directions of end and side dies at the same time, so that the efficiency of tensioning is improved and the production cycle is shortened. Disclosed is a synchronous relaxation device for a pre-tensioned prefabricated track slab, comprising: an end relaxation mechanism (10), a side relaxation mechanism (20), a power mechanism (30) connected to the end relaxation mechanism (10) and the side relaxation mechanism (20), a control mechanism (40), and a die positioning device (50). The synchronous relaxation device for the pre-tensioned prefabricated track slab realizes the synchronous relaxation of a pre-stressed steel reinforcement in the longitudinal direction and the horizontal direction, so that the efficiency of relaxation is improved and the production cycle is shortened.

Description

Tension device for prefabricated track plate and pre-tensioned track plate synchronous release device Technical field

The utility model belongs to the technical field of rail transit, in particular to a tension device for a prefabricated track plate and a synchronous pretensioning device for a prefabricated track plate.

Background technique

The pre-tensioning process is widely used in the production process of prefabricated track plates because of its high reliability. However, since the precision of the prestressed steel bar has a great influence on the quality of the prefabricated track plates, the tensioning of the prestressed steel bars is first. An important process in the process.

At present, there are a variety of tensioning devices that have been disclosed in the prior art, but there are many defects, including:

A hand-held micro-prestressed steel wire tensioning device comprising a lower rotary lifting assembly and an upper fixing assembly, the lower end of the upper fixing assembly being connected to the upper end of the lower rotary lifting assembly, is disclosed in Chinese Patent Application No. CN201510790767.3 A lower wire passage is disposed in the lower rotary lifting assembly, and one end of the prestressed steel wire is connected to the upper fixing component through the lower wire passage. It requires manual work, low efficiency, and low security.

In the Chinese utility model patent with the patent number CN201420763688.4, a pretensioned prefabricated plate beam pull-rod integral tensioning device is disclosed, which comprises a bearing frame, a prestressing tendon, an anchoring end beam, a tensioned end middle beam, and a sheet. The rear end beam, the tensioned front beam, the jack and the tie rod; the anchor end beam and the tension end middle beam are respectively arranged at the two ends of the bearing frame, the tensioned rear beam and the tensioned front beam are arranged in the tension device The right side of the tensioned end, the tensioned rear beam is connected to the tensioned front beam by a tie rod, the prestressing rib is connected with the tensioned rear beam, and the tensioned rear beam is connected to the tensioned front beam by a tie rod, the jack top The front end of the tensioned end beam is pushed, and the front beam of the tensioned end pulls the tensioned rear beam and the prestressing rib to realize the overall tension. It cannot simultaneously tension multiple prestressed bars in all directions.

The Chinese invention patent No. CN03111812.7 discloses a fully automatic prestressing tensioning device, which comprises a control assembly of a tensioning jack, a force sensor, a displacement sensor and a tensioning device driven by an oil pump, which is provided in the oil pump. A solenoid valve controlled by a tensioning device control assembly is provided in the oil passage. According to the description, the jack described in the device should have oil in the rod cavity when the tension is pulled, and the oil in the rod chamber is not generated, so the working pressure of the hydraulic system is large and the energy consumption is high.

In summary, the traditional tensioning device basically needs manual participation, the tension of the prestressed steel bar is uncontrollable, leading to the quality defect of the prefabricated track plate, and the elastic force of the prestressed steel bar is large, the operation safety is not high, and the efficiency is low. Low, high working pressure leads to high energy consumption, which is not conducive to energy conservation and environmental protection.

The "position method" is a traditional process of pre-tensioned prestressed concrete structure construction, in which the pretensioning steel bar is required to be used, and the tensioned steel bar is pulled over by the tensioning jack, and the stress steel bar connecting rod nut is loosened.

The above process still has the following shortcomings:

When the tension is applied, the prestressed steel bar and the solidified concrete material will cause damage inside, and the production efficiency is low, the floor space is large, and the vertical and horizontal synchronous release cannot be realized, the prestress distribution is uneven, and the product is deformed greatly; The traditional "stage method" tensioning and releasing device requires the construction of concrete bearing foundation pits, which cannot disassemble, transfer and reinstall the device.

In summary, it is very necessary to develop a device with simple principle, reliable mechanism, easy disassembly, transshipment and reinstallation, which can realize simultaneous release of longitudinal and lateral prestressed steel bars.

Utility model content

The main purpose of the utility model is to provide a tensioning device for a prefabricated track plate and a pre-tensioning track plate synchronous release device. The tension device of the prefabricated track plate can simultaneously prestress the prestressed steel bars in all directions of the prefabricated track plate. Pulling, can accurately control the tension of each prestressed steel bar; the pre-tensioned track plate synchronous release device can realize synchronous release in the longitudinal and transverse directions of the prestressed steel bar, which is beneficial to improve the laying efficiency. The production cycle of the prefabricated track plate is shortened, and the device is convenient to operate, easy to disassemble, transfer, and reassemble, and can realize repeated use, thereby greatly saving production cost.

In order to achieve the above object, according to an aspect of the present invention, a tensioning device for a prefabricated rail plate is provided, comprising: a side tensioning mechanism having a plurality of side tensioning units and a plurality of side tensioning power units, The plurality of side tensioning units are independently driven and pulled by the side tensioning power unit; the end tensioning mechanism has a plurality of end tensioning units and a plurality of end tensioning power units, and the plurality of end tensioning units are independent of the end tensioning power unit. Driving tension; the power mechanism is connected with the side tensioning power unit of the side tensioning mechanism and the end tensioning power unit of the end tensioning mechanism to provide a tension driving force; and the control mechanism, the side tensioning mechanism, and the end tensioning The mechanism is connected to the power mechanism.

A tensioning device for a prefabricated track plate according to an embodiment of the present invention, the side tensioning mechanism includes:

a side tension beam bracket, the side tensioning mechanism is fixedly mounted on the working surface by the side tension beam bracket; the side sliding rail is disposed on the side tension beam bracket;

The side tension beam is movably disposed on the side tension beam bracket through the side sliding rail; the side claw assembly is connected to the side tension beam, and is used as a side tensioning unit for connecting the mold to be stretched;

The side tension pull jack, one end is connected to the side tension beam, and the other end is connected to the side claw assembly, and the side tensioning power unit is driven to drive the side claw assembly to realize the side tensioning;

The side force sensor is disposed between the side claw assembly and the side tensioning jack for measuring tensile force and is communicatively connected with the control mechanism;

The side sill plate is protruded from the side of the side tension beam to set the side claw assembly, and the protruding height is greater than or equal to the height of the side claw assembly protruding from the side tension beam;

a side-position cylinder, one end of which is hinged to the side tension beam bracket, and the other end is hinged to the side tension beam;

The side hydraulic solenoid valve is disposed on the hydraulic line between the hydraulic station and the side tensioning jack and between the hydraulic station and the side positioning cylinder, and is communicatively connected with the control mechanism.

In implementation, the number of side tension jacks, side load cells, side jaw assemblies, and/or side hydraulic solenoid valves are arranged in a manner corresponding to the number and arrangement of tensioned prestressed bars of the mold to be tensioned.

Preferably, when the side tensioning jack is pulled, the rodless cavity is oiled, and the rod cavity is oiled.

In the tension device of the prefabricated track plate according to an embodiment of the present invention, the end tensioning mechanism includes:

a fixing seat, the end tensioning mechanism is fixedly mounted on the working surface through the fixing seat;

a guide post, disposed in the fixed seat;

a lifting cylinder provided at a fixed seat;

The end tension beam bracket is movably disposed on the fixed seat, and the height is adjusted by the lifting cylinder driving end tension beam bracket along the extending direction of the guiding column;

The end rail is disposed on the end tension beam bracket;

The end tension beam is movably disposed on the end tension beam bracket through the end slide rail;

The end-position cylinder has one end hinged to the end tension beam bracket and the other end hinged to the end tension beam;

The end pull claw assembly is disposed on the end tension beam and is used as an end tension unit for connecting the mold to be stretched;

The end pulls the jack, one end is connected to the end tension beam, and the other end is connected to the end pull claw assembly, and the end tensioning is carried out as the end tensioning power unit driving end claw assembly;

The end load cell is disposed between the end claw assembly and the end tensioning jack for measuring tensile force and is communicatively connected with the control mechanism;

The end jaw is convexly disposed on a side of the end tensioning member of the end tensioning member, and the protruding height is greater than or equal to a height of the end pulling claw assembly protruding from the end tensioning beam;

The end hydraulic solenoid valve is disposed on the hydraulic line between the hydraulic station and the end tension jack and between the hydraulic station and the end position cylinder, and is communicatively connected with the control mechanism.

In practice, the number of end load cells, end pull jacks, end hydraulic solenoid valves, and/or end pull jaw assemblies is arranged in a manner corresponding to the number and arrangement of tensioned prestressed bars of the mold to be tensioned.

Preferably, when the end tensioning jack is pulled, the rodless cavity is oiled, and the rod cavity is oiled.

Among them, the power mechanism includes a hydraulic station.

The tensioning device of the prefabricated track plate of any of the above embodiments further includes a positioning mechanism corresponding to the position of the mold to be stretched for adjusting the height position of the mold to be stretched.

Wherein, the positioning mechanism comprises a hydraulic cylinder.

The beneficial effects of the utility model are:

1. When the elastic modulus of the prestressed steel bar is constant, the elongation is proportional to the stress when tensioning. Therefore, each prestressed steel bar in the horizontal and vertical directions can be detected in real time by the side force sensor and the end load cell. The tension of the tension can further determine the tension of each prestressed steel bar, and control the hydraulic solenoid valve on the side of the control cabinet at the end tensioning jack and the side tensioning jack oil, which can accurately control the tension of the prestressed steel bar. the amount;

2. Through the control cabinet, multiple tensioning units in the direction of the end and side molds can be tensioned at the same time. Compared with the traditional tensioning device, the single prestressed steel bars are stretched one by one, and the tensioning efficiency will be greatly improved and shortened. The production cycle of the prefabricated track plate;

3, safe and reliable, high degree of automation, the entire process does not require manual participation, greatly saving labor costs;

4. By making the end tensioning jack and the side tensioning jack, when the tension is pulled, the rodless cavity is oiled and the rod cavity is oiled. When the same tension is obtained, the system pressure is higher than that of the rod cavity. The situation of oil discharge from the cavity will be greatly reduced. While improving the safety performance of the hydraulic system, it also effectively reduces the energy loss such as tube loss and achieves the effect of energy saving and environmental protection;

5. The reaction force during tensioning acts on the mold on which the prestressed steel bars are installed through the end jaws and the side jaws, so that the end tensioning mechanism and the side tensioning mechanism do not need to additionally increase the bearing mechanism.

According to another aspect of the present invention, a pre-tensioned track-plate synchronous release device is provided, comprising:

An end discharge mechanism, which is mounted on the work surface in a first installation direction, and has an end power unit for releasing, the end release mechanism having a first release direction for releasing the end power unit, and for adjusting The first adjustment direction for the end power unit;

a side release mechanism mounted on the work surface in a second mounting direction, having a side power unit for releasing, the side release mechanism having a second release direction for releasing the side power unit, and for adjusting a second adjustment direction for the side power unit, the second installation direction and the first installation direction have a predetermined angle α, and the first release direction and the second release direction have a predetermined angle β, the first adjustment direction and the first adjustment direction The second adjustment direction has a predetermined angle γ;

a power mechanism that is coupled to the end release mechanism and the side release mechanism and provides power for release and adjustment;

The control mechanism is connected as an overall control center to the end release mechanism, the side release mechanism and the power mechanism;

The mold positioning device is disposed on the work surface to provide positioning of the mold corresponding to the first adjustment direction of the end release mechanism and/or the second adjustment direction of the side release mechanism.

A pre-tensioned prefabricated track plate synchronous release device according to an embodiment of the present invention, the working surface of which refers to a hardened ground.

In the embodiment of the present invention, the pre-tensioned track plate synchronous release device has an angle α of 90°, an angle β of 90°, and an included angle γ of 0°.

For example, the first mounting direction is a horizontal horizontal direction, the second mounting direction is a horizontal longitudinal direction, the first releasing direction is a horizontal longitudinal direction, the second releasing direction is a horizontal horizontal direction, and the first adjusting direction and the second adjusting direction are vertical.

The pre-tensioned prefabricated track plate synchronous release device according to an embodiment of the present invention, the end release mechanism comprises:

The end guide frame is disposed on the working surface along the first adjustment direction;

The end bracket is disposed on the working surface by the end guide frame adjustable along the first adjustment direction;

The end lift cylinder provides power for adjusting the end bracket in the first adjustment direction;

The end rail is disposed on the end bracket along the first releasing direction;

The end box is movable to the end bracket through the end rail in the first releasing direction;

The end position cylinder is connected with the end box body, and the end box body moves back and forth along the first releasing direction;

The end reduction unit is disposed between the end power unit and the end box for outputting power to be released in the first release direction.

Preferably, the end reduction unit comprises:

Putting the heads at the two ends as the output of the tensioning power;

The first motor serves as a power source for the tensioning power;

The end reduction module is connected to the power output shaft of the first motor;

The end main gear is connected to the power output shaft of the end reduction module;

a flange connected to the end box;

Two first bearings fixed to the flange;

Two end output gear shafts, pivoted to the first bearing;

Two end output gears fixed to the end output gear shaft;

The end cover is connected to the end box body, the end output gear shaft is rotatably disposed on the end cover, and the end output gear and the end discharge head are respectively fixed on the end output gear shaft on both sides of the end cover;

a transition gear, meshed between the end main gear and the two end output gears, transmits the motion of the end main gear to the two end output gears;

a second bearing fixed to the flange;

An end transition gear shaft is pivoted to the second bearing.

A pre-tensioned prefabricated track plate synchronous release device according to an embodiment of the present invention, wherein the side release mechanism comprises:

The side guide frame is disposed on the working surface along the second adjustment direction;

a side bracket, which is adjustable on the working surface by the side guide frame along the second adjustment direction;

a side lift cylinder that provides power for adjusting the side bracket in the second adjustment direction;

a side slide rail is disposed on the side bracket along the second release direction;

a side box, which is movably disposed in the side bracket by the side rails in the second releasing direction;

a side-position cylinder connected to the side box for reciprocating movement of the side box along the second releasing direction;

The side reduction unit is disposed between the side power unit and the side box for outputting power to be released in the second release direction.

Preferably, the side reduction unit comprises:

1 level side placement head, 2 stage side placement head... n stage side placement head, as the output end of the release power, n is a natural number greater than 2 (better, n is 3 or 4 or 5);

a second motor as a power source for the tensioning power;

a side reduction module connected to the power output shaft of the second motor;

a side drive gear connected to the power output shaft of the side reduction module;

a transition plate connected to the side case;

a 1-stage side output gear that meshes as a first-stage driven gear and a side drive gear;

The first-stage side output gear shaft is fixedly connected with the one-stage side discharge head and the one-stage side output gear;

a 1-stage output bearing that supports the 1-stage side output gear shaft to the transition plate;

a first-stage transition gear meshed between the first-stage side output gear and the second-stage side output gear, and transmits the motion of the one-stage side output gear to the second-stage side output gear;

The 2-stage side output gear shaft is fixedly connected with the 2-stage side discharge head and the 2-stage side output gear;

2-stage output bearing, supporting the 2-stage side output gear shaft to the side box;

The n-1 stage transition gear is meshed between the n-1 stage side output gear and the n stage side output gear, and transmits the motion of the n-1 stage side output gear to the n stage side output gear;

The n-stage side output gear shaft is fixedly connected with the n-stage side discharge head and the n-stage side output gear;

The n-stage output bearing supports the n-stage side output gear shaft to the side case.

Among them, the first-stage transition gear can be set on the transition plate through the first-stage transition gear shaft and the first-stage transition gear bearing.

The n-1 stage transition gear can be placed in the side box through the n-1 stage transition gear shaft and the n-1 stage transition gear bearing.

Among them, the side deceleration unit can also be provided with a baffle. The baffle may be disposed on the 1-stage side output gear shaft, the 1-stage transition gear shaft, the 2-stage side output gear shaft, the n-1 stage transition gear shaft, and/or the n-stage side output gear shaft.

The pre-tensioned prefabricated track plate synchronous release device according to an embodiment of the present invention, wherein the first motor and the second motor adopt a servo motor, the end deceleration module and the side deceleration module are high reduction ratio reducers.

The utility model has the beneficial effects that the pre-tensioned prefabricated track plate synchronous release device of the utility model can realize the synchronous release of the prestressed steel bars in the longitudinal and transverse directions, thereby improving the laying efficiency and shortening the time. Precast track The production cycle of the board is convenient, the level of automation is high, no manual participation is required, labor cost is saved, and the floor space is small, and it is easy to disassemble, transfer, re-assemble, can realize repeated use, and greatly save production cost.

DRAWINGS

The accompanying drawings, which are incorporated in the claims of the claims In the drawing:

1 is a schematic view showing the overall structure of an embodiment of a tensioning device of the present invention;

2 is a schematic structural view of an embodiment of the side tensioning mechanism of FIG. 1 according to the present invention;

3 is a schematic structural view of an embodiment of the end tensioning mechanism of FIG. 1 according to the present invention;

Figure 4 is a schematic view showing the overall structure of an embodiment of the synchronous release device of the present invention;

Figure 5 is a schematic structural view of the end releasing mechanism of Figure 4 of the present invention;

6 is a schematic structural view of a speed reduction unit in the end tensioning mechanism of FIG. 4 according to the present invention;

Figure 7 is a schematic structural view of the side release mechanism of Figure 4 of the present invention;

FIG. 8 is a schematic structural view of a speed reduction unit in the side release mechanism of FIG. 4 according to the present invention.

Wherein, the above figures include the following reference numerals:

1: control cabinet; 2: hydraulic station; 3: side tensioning mechanism; 3-1: side tensioning jack; 3-2: side force sensor; 3-3: side tension beam bracket; 3-5: Side slide rail; 3-6: side hydraulic solenoid valve; 3-7: side sill plate; 3-8: side tension beam; 3-9: side pull claw assembly; 4: end tension mechanism; 4-1: Fixed seat; 4-2: lift cylinder; 4-3: end load cell; 4-4: end pull jack; 4-5: end position cylinder; 4-6: end slide rail; 4-7: end section Pull beam bracket; 4-8: guide post; 4-9: end hydraulic solenoid valve; 4-10: end pull claw assembly; 4-11: end jaw plate; 4-12: end tension beam; 5: positioning Cylinder

10: end release mechanism; 1-1: end guide frame; 1-2: end lift cylinder; 1-3: end bracket; 1-4: end reduction unit; 1-4-1: end placement head; 1-4-2: end cap; 1-4-3: output gear; 1-4-4: transition gear; 1-4-5: flange; 1-4-6: main gear; 7: speed reduction mechanism; 1-4-8: end output gear shaft; 1-4-9: end transition gear shaft; 1-4-10: bearing one; 1-4-11: bearing two; 1-4-12 : first motor; 1-5: end slide rail; 1-6: end box body; 1-7: end position cylinder; 20: side release mechanism; 2-1: side guide frame; 2-2: side Bracket; 2-3: side lift cylinder; 2-4: side slide rail; 2-5: side box body; 2-6: side position cylinder; 2-7: side reduction unit; 2-7-1: Side head; 2-7-2: baffle; 2-7-3: 2 stage side output gear; 2-7-4: 1 stage transition gear; 2-7-5: 1 stage transition gear shaft; -7-6: side drive gear; 2-7-7: side reduction module; 2-7-8: transition plate; 2-7-9: 2 stage side output gear shaft; 2-7-10: 2 stage side Output gear bearing; 2-7-11:1 grade transition gear bearing; 2-7-12: second motor; 30: power mechanism; 40: control mechanism; 50: mold positioning Set.

detailed description

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the drawings in conjunction with the embodiments.

Referring to FIG. 1 , a tensioning device for a prefabricated track plate according to an embodiment of the present invention includes:

Control cabinet 1, hydraulic station 2, side tensioning mechanism 3, end tensioning mechanism 4, positioning cylinder 5, wherein: control cabinet 1 is rigidly connected to the ground, hydraulic station 2 is rigidly connected to the ground, side tensioning mechanism 3 and ground rigidity The connecting end tensioning mechanism 4 is rigidly connected to the ground, and the positioning cylinder 5 is rigidly connected to the ground. For example, they are all fixed on the hardened floor and are installed at a position corresponding to the mold to be stretched which is filled with prestressed steel bars.

Referring to Fig. 2, the side tensioning mechanism 3 comprises: a side tensioning jack 3-1, a side force sensor 3-2, a side tensioning beam bracket 3-3, a side seating cylinder 3-4, a side sliding rail 3 - 5. Side hydraulic solenoid valve 3-6, side sill plate 3-7, side tension beam 3-8, side claw assembly 3-9, wherein: side tension beam bracket 3-3 is rigidly connected to the ground and passes The side slide rails 3-5 are connected with the side tension beam 3-8; one end of the side position cylinder 3-4 is hinged to the side tension beam bracket 3-3, and the other end is hinged to the side tension beam 3-8; The solenoid valve 3-6 is connected to the side tension beam 3-8; the side jaw plate 3-7 is connected to the side tension beam 3-8; the side tensioning jack 3-1 is connected to the side tension beam 3-8; One end of the load cell 3-2 is connected to the side claw assembly 3-9, and the other end is connected to the piston end of the side tensioning jack 3-1; the side load cell 3-2, the side hydraulic solenoid valve 3-6 and the control cabinet 1 control connection; side in position cylinder 3-4, side tension jack 3-1 and side hydraulic solenoid valve 3-6 pipeline connection; hydraulic solenoid valve 3-6 and hydraulic station 2 pipeline connection.

Referring to FIG. 3, the end tensioning mechanism 4 includes: a fixing seat 4-1, a lifting cylinder 4-2, an end measuring force sensor 4-3, an end tensioning jack 4-4, an end seating cylinder 4-5, and an end rail. 4-6, end tension beam bracket 4-7, guide post 4-8, end hydraulic solenoid valve 4-9, end claw assembly 4-10, end jaw 4-11, end tension beam 4-12 Wherein: the fixing seat 4-1 is connected to the guiding column 4-8 and rigidly connected to the ground; the fixing seat 4-1 is connected to the end tension beam bracket 4-7 through the lifting cylinder 4-2 and the guiding column 4-8; The end tension beam bracket 4-7 is connected to the end tension beam 4-12 through the end rail 4-6; one end of the end position cylinder 4-5 is hinged to the end tension bracket 4-7, and the other end and the end The tension beam 4-12 is hinged; the end hydraulic solenoid valves 4-9 and the end jaws 4-11 are connected to the end tension beams 4-12; the end tension jacks 4-4 are mounted on the end tension beams 4-12. And connected to the end claw assembly 4-10 by the end load cell 4-3. The end tensioning jack 4-4 and the end in position cylinder 4-5 are connected to the hydraulic station 2 through the end hydraulic solenoid valve 4-9; the end load cell 4-3 and the end hydraulic solenoid valve 4-9 are connected to the control cabinet 1 .

In a preferred embodiment of the present invention, the top of the positioning cylinder 5 is tapered, and can be inserted into the positioning hole on the mold to position the horizontal position of the mold, and the telescopic expansion of the piston of the positioning cylinder 5 can make the mold vertical. The direction moves up and down to reach a predetermined height. This allows the tensioned mold to be accurately positioned in a spatial position.

In a preferred embodiment of the present invention, the side tension beam bracket 3-3 is rigidly connected to the ground and connected to the side tension beam 3-8 through the side slide rail 3-5; the side seating cylinder 3-4 end It is hinged to the side tension beam bracket 3-3 and the other end is hinged to the side tension beam 3-8. The side tensioning beams 3-8 are moved by the side positioning cylinders 3-4 through the side rails 3-5 along the side tensioning cylinder brackets 3-3 along the side of the side cylinders 3-4. This allows the front end of the side jaw assembly 3-9 to be aligned with the tensioned prestressed reinforcing bar.

In a preferred embodiment of the present invention, the side tensioning jack 3-1 is connected to the side tensioning beam 3-8; the side measuring force sensor 3-2 is connected to the side pulling jaw assembly 3-9, and the other end and the side are The piston end of the tension jack 3-1 is connected. The piston of the side tensioning jack 3-1 extends through the side load cell 3-2 to drive the side claw assembly 3-9 to move along the axial direction of the side tensioning jack 3-1, thereby realizing the tension of the prestressed steel bar. The side force sensor 3-2 is capable of detecting the tensile force of the prestressed steel bar and is capable of detecting the detected The tension of the prestressed steel bar is transmitted to the control cabinet 1, and the control cabinet 1 controls the side hydraulic solenoid valve 3-6 to control the expansion and contraction of the tensioning jack 3-1. This allows precise control of the tension.

In a preferred embodiment of the present invention, the reaction force of the side tensioning jack 3-1 acts on the side tensioning beams 3-8, and then acts on the side sills 3-7 on the tensioning beams 3-8. The mold is tensioned on the prestressed steel bar.

In a preferred embodiment of the present invention, the holder 4-1 is coupled to the end tension bracket 4-7 via the lift cylinder 4-2 and the guide post 4-8. The end tension beam bracket 4-7 can realize vertical movement up and down under the action of the lift cylinder 4-2. In a preferred embodiment of the present invention, the end tension beam bracket 4-7 is connected to the end tension beam 4-12 through the end slide rail 4-6; the end position cylinder 4-5 section and the end tension beam The brackets 4-7 are hinged and the other end is hinged to the end tension members 4-12. The end tension members 4-12 are moved by the end position cylinders 4-5 through the end rails 4-6 in the axial direction of the end cylinders 4-5 on the end tension beam brackets 4-7. This allows the front end of the end puller assembly 4-10 to be aligned with the tensioned prestressed reinforcing bar.

In a preferred embodiment of the present invention, the end tensioning jacks 4-4 are mounted on the end tension members 4-12 and are coupled to the end jaw assemblies 4-10 by end load cells 4-3. The piston of the end tensioning jack 4-4 protrudes through the end load cell 4-3 to drive the end pulling claw assembly 4-10 to move along the axial direction of the end tensioning jack 4-4, thereby realizing the tension of the prestressed reinforcing bar. The end load cell 4-3 can detect the tensile force of the prestressed steel bar, and can transmit the detected prestressed steel bar tensile force to the control cabinet 1, and the control cabinet 1 controls the side end hydraulic solenoid valve 4-9, and then the control end Tensioning and stretching of the jack 4-4. This allows precise control of the tension.

In a preferred embodiment of the present invention, the reaction force of the end tensioning jack 4-4 acts on the end tension beam 4-12, and then acts through the end jaws 4-11 on the end tension beam 4-12. On the mold of the prestressed steel bar being tensioned.

In the state of use, the side tension pull jack 3-1, the side force sensor 3-2, the side pull claw assembly 3-9, the side hydraulic solenoid valve 3-6, the end force sensor 4-3, the end tension pull jack 4-4, The number of end hydraulic solenoid valves 4-9 and/or end jaw assemblies 4-10 corresponds to the number and arrangement of the rows of tensioned prestressed bars.

In the state of use, the side tensioning jack 3-1 and the end tensioning jack 4-4 are in the rodless cavity when the tension is pulled, and the rod cavity is oiled.

This embodiment can be operated by the following steps:

a. After connecting the mold of the prestressed steel bar into the tensioning device, the positioning cylinder is lifted up for precise positioning;

b. The end tension beam bracket is caused by the lifting cylinder to reach a predetermined height when the tension is pulled;

c. The end tension beam moves along the axis direction of the mold under the action of the end position cylinder, and finally reaches the predetermined position when the tension is pulled; the side tension beam moves close to the mold along the axis direction under the action of the side position cylinder , and finally arrive at the predetermined position when the tension is pulled;

d. The mold connecting the prestressed steel bars is further raised to a predetermined position when the tensioning cylinder is lifted by the positioning cylinder, so that the prestressed steel bars and the end claws and the side pulling claws of the tensioning device are connected in position;

e. The end claw on the end tensioning mechanism moves in the direction away from the mold under the action of the end tensioning jack, thereby realizing the tensioning of the longitudinal prestressed steel bar; at the same time, the side pulling claw assembly on the side tensioning mechanism is on the side Under the action of the tensioning jack, it moves away from the mold, thereby realizing the tensioning of the transverse prestressed steel bars.

Among them, when the tension is pulled, the reaction force acts on the mold on which the prestressed steel bars are installed through the end sill and the side sill.

In summary, the tensioning device of the prefabricated track plate of the present invention has the following characteristics and beneficial effects:

1. When the elastic modulus of the prestressed steel bar is constant, the elongation is proportional to the stress when tensioning. Therefore, each prestressed steel bar in the horizontal and vertical directions can be detected in real time by the side force sensor and the end load cell. The tension of the tension can further determine the tension of each prestressed steel bar, and control the hydraulic solenoid valve on the side of the control cabinet at the end tensioning jack and the side tensioning jack oil, which can accurately control the tension of the prestressed steel bar. the amount;

2. Through the control cabinet, multiple tensioning units in the direction of the end and side molds can be tensioned at the same time. Compared with the traditional tensioning device, the single prestressed steel bars are stretched one by one, and the tensioning efficiency will be greatly improved and shortened. The production cycle of the prefabricated track plate;

3, safe and reliable, high degree of automation, the entire process does not require manual participation, greatly saving labor costs;

4. By making the end tensioning jack and the side tensioning jack, when the tension is pulled, the rodless cavity is oiled and the rod cavity is oiled. When the same tension is obtained, the system pressure is higher than that of the rod cavity. The situation of oil discharge from the cavity will be greatly reduced. While improving the safety performance of the hydraulic system, it also effectively reduces the energy loss such as tube loss and achieves the effect of energy saving and environmental protection;

5. The reaction force during tensioning acts on the mold on which the prestressed steel bars are installed through the end jaws and the side jaws, so that the end tensioning mechanism and the side tensioning mechanism do not need to additionally increase the bearing mechanism.

The utility model mainly realizes the vertical and horizontal synchronous release by providing a releasing mechanism on the end surface and the side surface of the track plate, and cooperating with the mold positioning device.

Specifically, the present invention provides a pre-tensioned prefabricated track plate synchronous release device, which includes:

An end discharge mechanism, which is mounted on the work surface in a first installation direction, and has an end power unit for releasing, the end release mechanism having a first release direction for releasing the end power unit, and for adjusting The first adjustment direction for the end power unit;

a side release mechanism mounted on the work surface in a second mounting direction, having a side power unit for releasing, the side release mechanism having a second release direction for releasing the side power unit, and for adjusting a second adjustment direction for the side power unit, the second installation direction and the first installation direction have a predetermined angle α, and the first release direction and the second release direction have a predetermined angle β, the first adjustment direction and the first adjustment direction The second adjustment direction has a predetermined angle γ;

a power mechanism that is coupled to the end release mechanism and the side release mechanism and provides power for release and adjustment;

The control mechanism is connected as an overall control center to the end release mechanism, the side release mechanism and the power mechanism;

The mold positioning device is disposed on the work surface to provide positioning of the mold corresponding to the first adjustment direction of the end release mechanism and/or the second adjustment direction of the side release mechanism.

When implemented, the working surface can be hardened ground.

When implemented, the angle α may be 90°, the angle β may be 90°, and the angle γ may be 0°. Of course, other angles can also be selected according to actual needs, and 90° is the best choice.

For example, the first mounting direction is a horizontal horizontal direction, the second mounting direction is a horizontal longitudinal direction, the first releasing direction is a horizontal longitudinal direction, the second releasing direction is a horizontal horizontal direction, and the first adjusting direction and the second adjusting direction are vertical. Of course, it can also have an angle with the horizontal direction. For example, when constructing on a sloped surface such as a slope, the direction corresponding to the situation can be selected according to the situation.

When implemented, the end release mechanism can adopt the following structure, which includes:

The end guide frame is disposed on the working surface along the first adjustment direction;

The end bracket is disposed on the working surface by the end guide frame adjustable along the first adjustment direction;

The end lift cylinder provides power for adjusting the end bracket in the first adjustment direction;

The end rail is disposed on the end bracket along the first releasing direction;

The end box is movable to the end bracket through the end rail in the first releasing direction;

The end position cylinder is connected with the end box body, and the end box body moves back and forth along the first releasing direction;

The end reduction unit is disposed between the end power unit and the end box for outputting power to be released in the first release direction.

Preferably, the end reduction unit can adopt the following structure, which includes:

Putting the heads at the two ends as the output of the tensioning power;

The first motor serves as a power source for the tensioning power;

The end reduction module is connected to the power output shaft of the first motor;

The end main gear is connected to the power output shaft of the end reduction module;

a flange connected to the end box;

Two first bearings fixed to the flange;

Two end output gear shafts, pivoted to the first bearing;

Two end output gears fixed to the end output gear shaft;

The end cover is connected to the end box body, the end output gear shaft is rotatably disposed on the end cover, and the end output gear and the end discharge head are respectively fixed on the end output gear shaft on both sides of the end cover;

a transition gear, meshed between the end main gear and the two end output gears, transmits the motion of the end main gear to the two end output gears;

a second bearing fixed to the flange;

An end transition gear shaft is pivoted to the second bearing.

When implemented, the side release mechanism can adopt the following structure, which includes:

The side guide frame is disposed on the working surface along the second adjustment direction;

a side bracket, which is adjustable on the working surface by the side guide frame along the second adjustment direction;

a side lift cylinder that provides power for adjusting the side bracket in the second adjustment direction;

a side slide rail is disposed on the side bracket along the second release direction;

a side box, which is movably disposed in the side bracket by the side rails in the second releasing direction;

a side-position cylinder connected to the side box for reciprocating movement of the side box along the second releasing direction;

The side reduction unit is disposed between the side power unit and the side box for outputting power to be released in the second release direction.

Preferably, the side reduction unit can adopt the following structure, which includes:

1 level side placement head, 2 stage side placement head... n stage side placement head, as the output end of the release power, n is a natural number greater than 2 (better, n is 3 or 4 or 5);

a second motor as a power source for the tensioning power;

a side reduction module connected to the power output shaft of the second motor;

a side drive gear connected to the power output shaft of the side reduction module;

a transition plate connected to the side case;

a 1-stage side output gear that meshes as a first-stage driven gear and a side drive gear;

The first-stage side output gear shaft is fixedly connected with the one-stage side discharge head and the one-stage side output gear;

a 1-stage output bearing that supports the 1-stage side output gear shaft to the transition plate;

a first-stage transition gear meshed between the first-stage side output gear and the second-stage side output gear, and transmits the motion of the one-stage side output gear to the second-stage side output gear;

The 2-stage side output gear shaft is fixedly connected with the 2-stage side discharge head and the 2-stage side output gear;

2-stage output bearing, supporting the 2-stage side output gear shaft to the side box;

The n-1 stage transition gear is meshed between the n-1 stage side output gear and the n stage side output gear, and transmits the motion of the n-1 stage side output gear to the n stage side output gear;

The n-stage side output gear shaft is fixedly connected with the n-stage side discharge head and the n-stage side output gear;

The n-stage output bearing supports the n-stage side output gear shaft to the side case.

Among them, the first-stage transition gear can be set on the transition plate through the first-stage transition gear shaft and the first-stage transition gear bearing.

The n-1 stage transition gear can be placed in the side box through the n-1 stage transition gear shaft and the n-1 stage transition gear bearing.

Among them, the side deceleration unit can also be provided with a baffle. The baffle may be disposed on the 1-stage side output gear shaft, the 1-stage transition gear shaft, the 2-stage side output gear shaft, the n-1 stage transition gear shaft, and/or the n-stage side output gear shaft.

In implementation, the simultaneous release of the pre-tensioned track plate can be achieved as follows, which includes the following steps:

a. Leveling, correcting and installing the aforementioned pre-tensioned track plate synchronous release device at the release station;

b. Place the mold for the prefabricated track plate into place and level it in place by the mold positioning cylinder;

c. Adjusting the end release mechanism in the first adjustment direction by adjusting the end bracket to align with the tension connecting rods at both ends of the mold, and adjusting the side release mechanism to adjust the side release mechanism along the second adjustment direction to the mold Side tension connecting rod alignment;

d. moving the end box of the end release mechanism along the end slide rail to the release position, and moving the side box of the side release mechanism along the side slide rail to the release position;

e. By reversing the end-discharging mechanism in a predetermined driving direction, the releasing sleeve is completely aligned with the tension connecting rods at both ends of the mold, and is reversed by the reverse rotation of the side releasing mechanism in a predetermined driving direction. The sleeve is completely aligned with the tension connecting rods on both sides of the mold;

f. synchronously releasing the first releasing direction and the second releasing direction by the forward rotation of the control mechanism releasing mechanism in the predetermined driving direction and the forward rotation of the side releasing mechanism in the predetermined driving direction;

g. After the release is completed, perform step d in the reverse direction to reset;

h, the mold positioning device is reset.

Specifically, referring to FIG. 4, a pre-tensioned track-plate synchronous release device according to an embodiment of the present invention includes:

End release mechanism 10, side release mechanism 20, pump station (power mechanism 30), electric control cabinet (control mechanism 40), positioning cylinder (mold positioning device 50), wherein: end release mechanism 10, side release mechanism 20. The pump station (power mechanism 30), the electric control cabinet (control mechanism 40), and the positioning cylinder (mold positioning device 50) are all fixedly mounted on the hardened ground, and the pump station (power mechanism 30) and the end position cylinder 1 7. The side seating cylinders 2-6 and the positioning cylinders (mold positioning device 50) are connected, and the electric control cabinets (control mechanisms 40) are respectively connected to the first motor 1-4-12 and the second motor 2-7-12. The end release mechanism 10 can be horizontally moved along the end slide rails 1-5 under the action of the end position cylinders 1-7, and can be moved up and down along the end guide frame 1-1 under the action of the end lift cylinders 1-2; The side release mechanism 20 can perform horizontal movement along the side slide rails 2-4 under the action of the side seating cylinders 2-6, and move up and down along the side guide frame 2-1 under the action of the side lift cylinders 2-3. The positioning cylinder (mold positioning device 50) can move in the vertical direction.

As shown in FIG. 5, the end release mechanism 10 includes: an end guide frame 1-1, an end lift cylinder 1-2, an end bracket 1-3, an end reduction unit 1-4, an end slide rail 1-5, and an end box. Body 1-6, end position cylinder 1-7; wherein: end reduction unit 1-4 is connected with end box 1-6, through end slide 1-5 and end position cylinder 1-7 and end bracket 1 The -3 is coupled together and connected to the guide bracket 1-1 by the end lift cylinder 1-2 to effect horizontal and vertical movement of the end release mechanism 10.

As shown in FIG. 6, the end reduction unit 1-4 of the end release mechanism 10 includes: an end discharge head 1-4-1, an end cover 1-4-2, an output gear 1-4-3, and a transition gear 1- 4-4, flange 1-4-5, main gear 1-4-6, speed reduction mechanism 1-4-7, end output gear shaft 1-4-8, end transition gear shaft 1-4-9, a bearing 1-4-10, a second bearing 1-4-11, a first motor 1-4-12; wherein: an output gear 1-4-3 is connected to the end output gear shaft 1-4-8 and then connected to the end box body 1-6 through the first bearing 1-4-10, the transition gear 1-4-4 and the end transition gear shaft 1-4 The -9 connection is connected to the end box body 1-6 through the second bearing 1-4-13, the first motor 1-4-14 is connected to the speed reduction mechanism 1-4-7, the main gear 1-4-6 and the speed reduction mechanism The 1-4-7 connection is connected to the end box 1-6 through the flange 1-4-5, and the end head 1-4-1 is connected to the end output gear shaft 1-4-8, and the end cover 1 is connected. -4-2 is connected to the end box 1-6. It can realize the release function of double-row prestressed steel bars with a minimum of 75mm between the upper and lower spacing. By controlling the forward and reverse rotation of the first motor 1-4-12, the alignment and release functions of the prestressed steel bars can be realized. Achieves millisecond-level synchronization accuracy.

As shown in FIG. 7 (including n=3 and n=4), the side release mechanism 20 includes: a side guide frame 2-1, a side bracket 2-2, a side lift cylinder 2-3, and a side slide rail 2-4. , side box 2-5, side seating cylinder 2-6, side reduction unit 2-7, wherein: side reduction unit 2-7 is assembled with side box 2-5, through side rail 2-4 and side The in-position cylinders 2-6 are connected to the side brackets 2-2, and are connected to the side guide frames 2-1 through the side lift cylinders 2-3. The horizontal and vertical movement of the end-release mechanism can be realized, and the release function of the pre-tensioned track plates of two different specifications can be satisfied.

As shown in Fig. 8 (showing the 1st and 2nd stage side discharge heads), the side reduction unit 2-7 of the side release mechanism 20 includes: a side release head 2-7-1, a shutter 2-7-2 , 2 stage side output gear 2-7-3, 1 stage transition gear 2-7-4, 1 stage transition gear shaft 2-7-5, side drive gear 2-7-6, side reduction module 2-7-7 , transition plate 2-7-8, 2 stage side output gear shaft 2-7-9, 2 stage output bearing 2-7-10, 2 stage output bearing 2-7-11, second motor 2-7-12; Wherein: the 2-stage side output gear 2-7-3 is connected with the 2-stage side output gear shaft 2-7-9 and then connected to the side box 2-5 through the 2-stage output bearing 2-7-10, the first-stage transition gear 2 -7-4 is connected with the 1st grade transition gear shaft 2-7-5 and then connected to the side box 2-5 through the 2nd stage output bearing 2-7-11, the second motor 2-7-12 and the side deceleration module 2 7-7 connection, the side drive gear 2-7-6 is connected with the side reduction module 2-7-7 and then connected to the side box 2-5 through the transition plate 2-7-8, and the side head 2-7-1 It is connected to the 2-stage side output gear shaft 2-7-9, and the baffle 2-7-2 is connected to the side casing 2-5. The alignment and release functions of the prestressed steel bars are achieved by controlling the forward and reverse rotation of the second motor 2-7-12. The servo motor drive can achieve millisecond-level synchronization accuracy.

Preferably, the first motor 1-4-12 and the second motor 2-7-12 adopt a servo motor to drive the high ratio gear reducer to perform stepless speed regulation to meet the requirement of the release time and ensure the pretension tension is slow. freed.

This embodiment can be run by the following steps:

a. Leveling, correcting, and accurately installing the synchronous release device at the release station;

b. The mold is placed in position, and the positioning cylinder is leveled by the mold;

c. The end and side release mechanisms are horizontally aligned with the tension connecting rods on both sides and both ends (ie: all sides) of the mold through the system lifting adjustment;

d. At this time, the release and deceleration mechanism is started to start reverse rotation, and the end and side release mechanisms pass through the horizontal position cylinder, and the release sleeve and the tension connection rod are automatically aligned and engaged;

e. The driving end of the in-position cylinder and the side box move along the end and side slide rails to the release position, and ensure that the end and side release mechanisms are stopped after the meshing mechanism is engaged, and the release speed reduction mechanism continues to rotate in the reverse direction to the release sleeve. After fully aligning with the tension connecting rod, the release speed reduction mechanism automatically stops;

f. Simultaneously start the vertical deceleration mechanism forward rotation through the control system to realize synchronous release;

g. After the release is completed, the system is retracted from the starting level and the cylinder is retracted, and the mechanism is reset.

h. The mold positioning device is reset and the mold enters the next process.

Thereby, the device can realize a plurality of steel bars having tensile stress, and realize uniform and stable vertical and horizontal release.

In summary, the pre-tensioned prefabricated track plate synchronous release device of the utility model can realize synchronous release of the prestressed steel bars in the longitudinal and transverse directions, thereby improving the laying efficiency and shortening the prefabricated track plates. The production cycle, the device is convenient to operate, high level of automation, no manual participation, saving labor costs, and its small footprint, and easy to disassemble, transfer, re-assemble, can achieve repeated use, greatly saving production costs.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention. For those skilled in the art, various modifications and changes can be made in the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims (20)

1. A tensioning device for a prefabricated track plate, characterized in that it comprises:

   a side tensioning mechanism, which has a plurality of side tensioning units and a plurality of side tensioning power units, and the plurality of side tensioning units are independently driven and pulled by the side tensioning power unit;

   The end tensioning mechanism has a plurality of end tensioning units and a plurality of end tensioning power units, and the plurality of end tensioning units are independently driven and pulled by the end tensioning power unit;

   The power mechanism is connected with the side tensioning power unit of the side tensioning mechanism and the end tensioning power unit of the end tensioning mechanism to provide a tension driving force;

   The control mechanism is connected to the side tensioning mechanism, the end tensioning mechanism and the power mechanism.
2. The tensioning device for a prefabricated track panel according to claim 1, wherein the side tensioning mechanism comprises:

   The side tension beam bracket (3-3), the side tensioning mechanism is fixedly mounted on the working surface by the side tension beam bracket (3-3);

   Side slide rails (3-5), which are arranged on the side tension beam brackets (3-3);

   The side tension beam (3-8) is movably disposed on the side tension beam bracket (3-3) through the side sliding rail (3-5);

   The side pull claw assembly (3-9) is connected to the side tension beam (3-8) as a side tension unit for connecting the mold to be stretched;

   Side tension pull jack (3-1), one end is connected to the side tension beam (3-8), and the other end is connected to the side claw assembly (3-9) as the side tension power unit driving side claw assembly (3- 9) achieving side tensioning;

   The side force sensor (3-2) is disposed between the side pull claw assembly (3-9) and the side tension pull jack (3-1) for measuring tension and is communicatively connected with the control mechanism;

   The side sill (3-7) is protruded from the side of the side tension beam (3-8) to the side of the side claw assembly (3-9), and the height of the protrusion is greater than or equal to the side claw assembly (3-9) Projecting from the height of the side tension beam (3-8);

   The side position cylinder (3-4) has one end hinged to the side tension beam bracket (3-3) and the other end hinged to the side tension beam (3-8);

   The side hydraulic solenoid valve (3-6) is disposed on the hydraulic line between the hydraulic station and the side tension jack (3-1) and between the hydraulic station and the side seating cylinder (3-4), and the control mechanism Communication connection.
3. A tensioning device for a prefabricated track panel according to claim 2, wherein the side tensioning jack (3-1), the side load cell sensor (3-2), the side jaw assembly (3-9) and/or The number and arrangement of the side hydraulic solenoid valves (3-6) correspond to the number and arrangement of the tensioned prestressed bars of the mold to be tensioned.
4. The tensioning device for a prefabricated track plate according to claim 2, wherein when the side tensioning jack (3-1) is pulled, the rodless cavity is oiled, and the rod cavity is oiled.
5. The tensioning device for a prefabricated track panel according to claim 1, wherein the end tensioning mechanism comprises:

   The fixing seat (4-1), the end tensioning mechanism is fixedly mounted on the working surface through the fixing seat (4-1);

   The guide post (4-8) is disposed on the fixed seat (4-1);

   Lifting cylinder (4-2), located in the fixed seat (4-1);

   The end tension beam bracket (4-7) is movably disposed on the fixing base (4-1), and the end tension beam bracket (4-7) is driven by the lifting cylinder (4-2) along the guide column (4) -8) the direction of extension is adjusted;

   End rails (4-6), arranged in the end tension beam bracket (4-7);

   The end tension beam (4-12) is movably disposed on the end tension beam bracket (4-7) through the end slide rail (4-6);

   The end position cylinder (4-5) has one end hinged to the end tension beam bracket (4-7) and the other end hinged to the end tension beam (4-12);

   The end claw assembly (4-10) is disposed on the end tension beam (4-12) as an end tension unit for connecting the mold to be stretched;

   The end pull pull jack (4-4), one end is connected to the end tension beam (4-12), and the other end is connected to the end pull claw assembly (4-10) as the end tension pull power unit drive end pull claw assembly (4- 10) achieving tensioning of the end faces;

   The end load cell (4-3) is disposed between the end pull claw assembly (4-10) and the end tension pull jack (4-4) for measuring tensile force and is communicatively connected with the control mechanism;

   The end jaws (4-11) are protruded from the side of the end tension members (4-12), and the protruding height is greater than or equal to the end claw assembly (4-10). The height of the end tension beam (4-12);

   The end hydraulic solenoid valve (4-9) is arranged on the hydraulic line between the hydraulic station and the end tension jack (4-4) and between the hydraulic station and the end position cylinder (4-5), and the control mechanism Communication connection.
6. The tensioning device for a prefabricated track plate according to claim 5, wherein the end load cell (4-3), the end tension jack (4-4), the end hydraulic solenoid valve (4-9) and/or The number of end jaw assemblies (4-10) and the arrangement are corresponding to the number and arrangement of tensioned prestressed bars of the mold to be tensioned.
7. The tensioning device for a prefabricated track plate according to claim 5, characterized in that: when the end tensioning jack (4-4) is pulled, the rodless cavity is oiled, and the rod cavity is oiled.
8. A tensioning device for a prefabricated track panel according to claim 1 wherein the power mechanism comprises a hydraulic station.
9. The tensioning device for a prefabricated track panel according to any one of claims 1 to 8, further comprising a positioning mechanism corresponding to the position of the mold to be stretched for adjusting the height position of the mold to be stretched.
10. A tensioning device for a prefabricated track panel according to claim 9, wherein the positioning mechanism comprises a positioning cylinder.
11. A pre-tensioned prefabricated track plate synchronous release device, characterized in that it comprises:

    An end discharge mechanism (10) mounted on the work surface in a first mounting direction, having an end power unit for releasing, the end release mechanism (10) having a first release for the end power unit to be released Direction, and the first adjustment direction for the power unit of the adjustment end;

    a side release mechanism (20) mounted on the work surface in the second mounting direction, having a side power unit for releasing, the side release mechanism (20) having a second release for the side power unit to release a direction, and a second adjustment direction for adjusting the side power unit, the second mounting direction and the first mounting direction have a predetermined angle α, and the first releasing direction and the second releasing direction have a predetermined angle β, a predetermined angle γ between the first adjustment direction and the second adjustment direction;

    a power mechanism (30) connected to the end release mechanism (10) and the side release mechanism (20) and providing power for releasing and adjusting;

    The control mechanism (40) is connected as an overall control center to the end release mechanism (10), the side release mechanism (20) and the power mechanism (30);

    A mold positioning device (50) is disposed on the work surface to provide positioning of the mold in a first adjustment direction corresponding to the end release mechanism (10) and/or a second adjustment direction of the side release mechanism (20).
12. The pre-tensioned track-plate synchronous release device according to claim 11, wherein the working surface refers to a hardened floor.
13. The pre-tensioned track-plate synchronous stretching apparatus according to claim 11, wherein the angle α is 90°, the angle β is 90°, and the angle γ is 0°.
14. The pre-tensioned track plate synchronous releasing device according to claim 13, wherein the first mounting direction is horizontal horizontal direction, the second mounting direction is horizontal longitudinal direction, the first releasing direction is horizontal longitudinal direction, and the second releasing is performed. The direction is horizontal and the first adjustment direction and the second adjustment direction are vertical.
15. The pre-tensioned track-plate synchronous release device according to claim 11, wherein the end-releasing mechanism (10) comprises:

    The end guide frame is disposed on the working surface along the first adjustment direction;

    The end bracket is disposed on the working surface by the end guide frame adjustable along the first adjustment direction;

    The end lift cylinder provides power for adjusting the end bracket in the first adjustment direction;

    The end rail is disposed on the end bracket along the first releasing direction;

    The end box is movable to the end bracket through the end rail in the first releasing direction;

    The end position cylinder is connected with the end box body, and the end box body moves back and forth along the first releasing direction;

    The end reduction unit is disposed between the end power unit and the end box for outputting power to be released in the first release direction.
16. The pre-tensioned track-plate synchronous release device according to claim 15, wherein the end reduction unit comprises:

    Putting the heads at the two ends as the output of the tensioning power;

    The first motor serves as a power source for the tensioning power;

    The end reduction module (1-4-7) is connected to the power output shaft of the first motor;

    The end main gear is connected to the power output shaft of the end reduction module;

    a flange connected to the end box;

    Two first bearings fixed to the flange;

    Two end output gear shafts, pivoted to the first bearing;

    Two end output gears fixed to the end output gear shaft;

    The end cover is connected to the end box body, the end output gear shaft is rotatably disposed on the end cover, and the end output gear and the end discharge head are respectively fixed on the end output gear shaft on both sides of the end cover;

    a transition gear, meshed between the end main gear and the two end output gears, transmits the motion of the end main gear to the two end output gears;

    a second bearing fixed to the flange;

    An end transition gear shaft is pivoted to the second bearing.
17. The pre-tensioned track-plate synchronous release device according to claim 11, wherein the side-release mechanism comprises:

    The side guide frame is disposed on the working surface along the second adjustment direction;

    a side bracket, which is adjustable on the working surface by the side guide frame along the second adjustment direction;

    a side lift cylinder that provides power for adjusting the side bracket in the second adjustment direction;

    a side slide rail is disposed on the side bracket along the second release direction;

    a side box, which is movably disposed in the side bracket by the side rails in the second releasing direction;

    a side-position cylinder connected to the side box for reciprocating movement of the side box along the second releasing direction;

    The side reduction unit is disposed between the side power unit and the side box for outputting power to be released in the second release direction.
18. The pre-tensioned track-plate synchronous release device according to claim 17, wherein the side reduction unit comprises:

    1 level side placement head, 2 stage side placement head... n stage side placement head, as the output end of the release power, n is a natural number greater than 2;

    a second motor (2-7-12) as a power source for the tensioning power;

    a side reduction module (2-7-7) connected to the power output shaft of the second motor;

    Side drive gear (2-7-6), connected to the power output shaft of the side reduction module;

    a transition plate (2-7-8) connected to the side case;

    a 1-stage side output gear that meshes as a first-stage driven gear and a side drive gear;

    The first-stage side output gear shaft is fixedly connected with the one-stage side discharge head and the one-stage side output gear;

    a 1-stage output bearing that supports the 1-stage side output gear shaft to the transition plate;

    The first-stage transition gear (2-7-4) is meshed between the 1-stage side output gear and the 2-stage side output gear, and transmits the motion of the 1-stage side output gear to the 2-stage side output gear;

    The 2-stage side output gear shaft (2-7-9) is fixedly connected to the 2-stage side discharge head and the 2-stage side output gear (2-7-3);

    2-stage output bearing (2-7-10), supporting the 2-stage side output gear shaft to the side box;

    The n-1 stage transition gear is meshed between the n-1 stage side output gear and the n stage side output gear, and transmits the motion of the n-1 stage side output gear to the n stage side output gear;

    The n-stage side output gear shaft is fixedly connected with the n-stage side discharge head and the n-stage side output gear;

    The n-stage output bearing supports the n-stage side output gear shaft to the side case.
19. The pre-tensioned prefabricated track plate synchronous releasing device according to claim 16 or 18, wherein the first motor and the second motor are servo motors, the end deceleration module and the side deceleration module are high reduction ratio reducers.
20. A pre-tensioned track-plate synchronous release apparatus according to claim 18, wherein n is 3 or 4 or 5.

Images