CN209958161U - Track beam linear adjustment equipment - Google Patents

Description

Track beam linear adjustment equipment

technical field

The utility model in the technical field of rail transit construction, in particular, relates to a rail beam linear adjustment device.

Background technique

In the straddle-type rail transit system, the track beam is not only a load-bearing structure, but also a walking track, which requires high precision in the installation of the track beam. As a reinforced concrete structure, the track beam itself has a large self-weight, and in order to meet the load-bearing and driving requirements, the height and width of the straddle-type track beam are relatively large, which requires higher hoisting equipment during hoisting, and also has stricter installation accuracy. , which makes the rail beam unable to be hoisted in one step. When installing the track beam, it is necessary to use a large hoisting equipment to lift the track beam to the top of the support, then slowly drop the track beam to the temporary support, and take temporary fixing measures for the track beam to prevent overturning. Align the track beam alignment in place.

However, due to the construction of post-casting belts and transverse tie beams, the temporary fixing device of the track beam cannot be removed immediately after the installation is completed, and it takes a long time. How to provide an efficient straddle-type track beam with high equipment turnover efficiency Adjusting equipment is a technical problem to be solved urgently by relevant technicians.

Utility model content

The purpose of the present utility model is to provide a device for adjusting the linear shape of a rail beam, so as to alleviate the technical problem of low turnover efficiency of the equipment for linear adjustment of the straddle type rail beam in the prior art.

The utility model provides a track beam linear adjustment device, comprising a base, a linear adjustment device, a temporary support device, a fixed support device and a hoop that can be sleeved and fixed on the track beam;

The linear adjustment device connects the base and the hoop, and can complete the horizontal, vertical and vertical movement of the rail beam in the hoop, and the temporary support device is detachably connected to the The base and the hoop can ensure that the track beam in the hoop will not overturn when moving, and the fixed support device can be detachably connected to the base and the hoop to ensure The track beam in the hoop is relatively fixed with the base.

Further, the linear adjusting device includes a longitudinal jack, a lateral jack, a vertical jack, and a first bottom plate, a second bottom plate and a third bottom plate which are stacked on each other from bottom to top;

The first bottom plate is fixed on the base, the end portion and the cylinder body of the longitudinal jack are respectively connected with the first bottom plate and the second bottom plate, and the cylinder body and the end portion of the lateral jack are respectively connected with the first bottom plate and the second bottom plate. The second bottom plate is connected with the third bottom plate; the vertical jack cylinder is connected with the third bottom plate, and the end portion supports the hoop.

Further, there is one horizontal jack, and two vertical jacks and two vertical jacks;

The first base plate is respectively fixed with two oppositely arranged first mounting seats on both sides of the second base plate for fixing the top part of the longitudinal jack, and a middle of the second base plate is provided for fixing the horizontal The second mounting seat of the jack cylinder, the middle of the third bottom plate is provided with a working hole that can be sleeved with the second mounting seat, and the third bottom plate is provided on both sides of the working hole for placing the vertical The U-shaped limit groove of the jack cylinder.

Further, the temporary support device includes a connecting rod, a sliding plate and a temporary diagonal strut with adjustable length;

Both ends of the temporary diagonal strut are pivotally connected to the hoop and the sliding plate, the sliding plate is slidably arranged on the base, the sliding direction of the sliding plate is horizontal, and the two ends of the connecting rod are respectively connected to the sliding plate. The sliding plate and the third bottom plate are fixedly connected.

Further, the temporary diagonal strut includes a bottom ball fork lug, a guide rod, a lock nut, a support sleeve, a support jack and a top ball fork lug;

The bottom ball fork lug is connected to the slide plate, the top of the bottom ball fork lug, the support jack, the guide rod and the top ball fork lug are connected in sequence, and the top ball fork lug is connected in sequence. Connected with the side of the hoop, the support sleeve is sleeved on the guide rod and the support jack, and the lock nut fixes the support jack and the support sleeve.

Further, two sets of oppositely arranged fixing plates are fixed on the base, a chute is formed between the two sets of the fixing boards, and the slide plate is slidably arranged in the chute.

Further, the fixed support device includes a pair of tie rods, two bases and two fixed diagonal struts; two of the bases are fixed on the base and are arranged on both sides of the slide plate; two of the fixed One end of the diagonal strut is pivotally connected with the two bases, and the other end is pivoted with the hoop; the two ends of the pair of tie rods are respectively connected with the two fixed diagonal struts.

Further, there are two sets of the temporary support device and the fixed support device, two sets of the temporary support devices are symmetrically arranged on both sides of the hoop, and two sets of the fixed support devices are symmetrically arranged on the ring. both sides of the hoop.

Further, the hoop includes a top plate, a bottom connecting plate and two side plates;

The upper ends of the two side plates are pivotally connected to both ends of the top plate, and the lower ends are respectively connected to the bottom connecting plate. Lever pivoted lugs.

Further, baffles are fixed on both ends of the upper surface of the bottom connecting plate, and the distance between the two baffles is equal to the sum of the thicknesses of the two side plates and the track beam.

Compared with the prior art, the beneficial effects of the track beam linear adjustment device provided by the present utility model are as follows:

In the track beam linear adjustment device provided by the utility model, the linear adjustment device is arranged on the base, the track beam is placed on the linear adjustment device through the hoop, and the linear adjustment device can complete the horizontal, longitudinal and vertical directions of the track beam relative to the base. The temporary support device is connected to the base and the hoop respectively to ensure that the track beam will not overturn under wind load or deflection during the linear adjustment; after the linear adjustment of the track beam is completed, the fixed support device The base and the hoop are connected to replace the temporary support device to complete the stable support of the track beam in the hoop to ensure that the track beam remains stationary during the construction of the post-cast belt. After the fixed support device is installed, the temporary support device can be dismantled and used for turnover, which improves the turnover use efficiency of the temporary support device and reduces equipment capital occupancy.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

1 is a schematic structural diagram of a track beam linear adjustment device provided by an embodiment of the present utility model;

2 is a schematic structural diagram of a centerline shape adjustment device of a track beam line shape adjustment device provided by an embodiment of the present utility model;

3 is a schematic structural diagram of a temporary support device in a track beam linear adjustment device provided by an embodiment of the present utility model;

4 is a schematic structural diagram of a fixed support device in a track beam linear adjustment device provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a hoop in a linear adjustment device for a track beam provided by an embodiment of the present invention.

Icons: 1-base; 2-linear adjustment device; 3-hoop; 4-temporary support device; 5-fixed support device; 21-first base plate; 22-second base plate; 23-third base plate; 24- Longitudinal jack; 25-horizontal jack; 26-vertical jack; 27-first mounting seat; 28-second mounting seat; 29-U-shaped limit groove; 31-top plate; 32-side plate; 33-bottom connecting plate ; 34- ear plate; 35- baffle; 41- temporary diagonal strut; 42- connecting rod; 43- slide plate; 44- fixed plate; 51- pair of tie rods; 52- base; 53- fixed diagonal strut; 411- Bottom ball fork lug; 412 - guide rod; 413 - support sleeve; 414 - support jack; 415 - top ball fork lug; 416 - lock nut.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

As shown in Figures 1-5, this embodiment provides a track beam linear adjustment device, including a base 1, a linear adjustment device 2, a temporary support device 4, a fixed support device 5, and a device that can be sleeved and fixed on the track beam The hoop 3; the linear adjustment device 2 connects the base 1 and the hoop 3, and can complete the horizontal, longitudinal and vertical movement of the rail beam in the hoop 3, and the temporary support device 4 is detachable to connect the base 1 and the hoop The hoop 3 can be ensured that the rail beam in the hoop 3 will not overturn when moving. The fixed support device 5 can be detachably connected to the base 1 and the hoop 3 to ensure that the hoop 3 The inner rail beam and the base 1 are relatively fixed.

In the track beam linear adjustment device provided in this embodiment, the linear adjustment device 2 is arranged on the base 1 , the track beam is placed on the linear adjustment device 2 through the hoop 3 , and the linear adjustment device 2 can complete the adjustment of the track beam relative to the base 1 . Horizontal, vertical and vertical movements; the temporary support device 4 connects the base 1 and the hoop 3 respectively to ensure that the track beam will not overturn under wind load or deflection during linear adjustment; After the linear adjustment, the fixed support device 5 is connected to the base 1 and the hoop 3 respectively, instead of the temporary support device 4 to complete the stable support of the rail beam in the hoop 3, ensuring that the rail beam remains stationary during the construction of the post-cast belt. . After the fixed support device 5 is installed, the temporary support device 4 can be dismantled and used for turnover, which improves the turnover use efficiency of the temporary support device 4 and reduces the amount of equipment capital occupied.

It is worth noting that the base 1 in this embodiment is an I-beam with a flat upper surface, and the hoop 3 is similar to a sleeve structure. The top surface, side surface and bottom surface of the track beam are in contact with each other, which ensures that the two are relatively fixedly arranged, and the adjustment of the hoop 3 by the linear adjustment device 2 is the adjustment of the track beam; The transverse direction is the width direction of the track beam, the longitudinal direction is the length direction of the track beam, and the vertical direction is the height direction of the track beam; finally, in this embodiment, at least two sets of track beam linear adjustment devices are preferably selected to jointly complete the support and alignment of a track beam. adjust.

Specifically, in this embodiment, the specific structure of the track beam linear adjustment device is also introduced in detail below.

First, as shown in FIGS. 2 and 4 , in this embodiment, the linear adjusting device 2 includes a vertical jack 24 , a horizontal jack 25 , a vertical jack 26 , and a first bottom plate 21 and a second bottom plate 22 that are stacked on top of each other from bottom to top. and the third bottom plate 23; the first bottom plate 21 is fixed on the base 1, the ends and cylinders of the longitudinal jacks 24 are respectively connected with the first bottom plate 21 and the second bottom plate 22, and the cylinders and the ends of the lateral jacks 25 are respectively connected with the first bottom plate 21 and the second bottom plate 22. The second bottom plate 22 is connected with the third bottom plate 23 ; the cylinder of the vertical jack 26 is connected with the third bottom plate 23 , and the end supports the hoop 3 .

That is, the longitudinal jack 24 works to complete the sliding of the second base plate 22 along the length direction of the track beam on the first base plate 21; the lateral jack 25 works to complete the sliding of the third base plate 23 along the width direction of the track beam on the second base plate 22; The work to the jack 26 directly acts on the hoop 3 to complete the adjustment of the height of the track beam.

Preferably, as shown in FIG. 4 , in this embodiment, there is one horizontal jack 25 , two vertical jacks 24 and two vertical jacks 26 ; There are two oppositely arranged first mounts 27 for fixing the ends of the longitudinal jacks 24 , a second mount 28 for fixing the cylinder of the transverse jack 25 is arranged in the middle of the second bottom plate 22 , and a second mount 28 is arranged in the middle of the third bottom plate 23 for The working hole of the second mounting seat 28 is sleeved, and the third bottom plate 23 is provided with U-shaped limiting grooves 29 on both sides of the working hole for placing the cylinder of the vertical jack 26 .

Specifically, in this embodiment, retractable piston rods are provided on both sides of the cylinder body of the longitudinal jack 24 and the transverse jack 25, wherein the two longitudinal jacks 24 are symmetrically arranged on both sides of the second bottom plate 22, and each longitudinal jack 24 The ends of the two piston rods are respectively fixed on two oppositely arranged first mounting parts, and the cylinder is fixed on the side of the second bottom plate 22; the lateral jacks 25 are arranged side by side in the working hole of the third bottom plate 23 , and the cylinder body of the transverse jack 25 is fixed on the second mounting seat 28 on the second base plate 22 , and the ends of the two piston rods are respectively fixed on the sides of the third base plate 23 that form the working hole. The U-shaped limit grooves 29 are symmetrically arranged on both sides of the working hole. At this time, the vertical jack is only provided with a retractable piston rod on one side of the cylinder body, and the cylinder body is clamped in the U-shaped limit groove 29. The end is set vertically upwards.

It should be noted that, in this embodiment, the first mounting seats 27 located on both sides of the second bottom plate 22 can be arranged to abut against the second bottom plate 22 to complete the position limit of the second bottom plate 22 in the width direction of the rail beam, ensuring that the When the lateral jack 25 is working, the second bottom plate 22 remains stationary, and the third bottom plate 23 moves in the width direction of the rail beam. Alternatively, in this embodiment, limit blocks for restricting the movement of the second base plate 22 may be specially provided on both sides of the second base plate 22 , and the limit blocks are fixed on the first base plate 21 by bolts.

As shown in FIG. 2 , the temporary support device 4 provided in this embodiment includes a connecting rod 42, a sliding plate 43 and a temporary diagonal strut 41 with adjustable length; The sliding plate 43 is slidably arranged on the base 1 , the sliding direction of the sliding plate 43 is horizontal, and the two ends of the connecting rod 42 are respectively fixedly connected with the sliding plate 43 and the third bottom plate 23 .

Specifically, the transverse direction here also refers to the width direction of the track beam. After the temporary diagonal struts 41 are respectively connected with the hoop 3 and the slide plate 43, the length of the temporary diagonal struts 41 is adjusted until the upper surface of the track beam is a horizontal plane. Subsequently, the length of the temporary diagonal strut 41 is kept unchanged, which completes the supporting and overturning functions of the track beam. By setting the connecting rods 42 to be fixedly connected to the sliding plate 43 and the third bottom plate 23 respectively, at this time, the length of the connecting rod 42 is unchanged, and the third bottom plate 23 and the sliding plate 43 are relatively fixed in the width direction of the track beam. When the rail beam is laterally adjusted, the third bottom plate 23 moves and makes the sliding plate 43 and the temporary diagonal brace 41 on the sliding plate 43 follow, and the temporary diagonal brace 41 guarantees the support and anti-overturning effect on the rail beam at all times.

Preferably, as shown in FIG. 2 , in this embodiment, the temporary diagonal strut 41 includes a bottom ball fork lug 411 , a guide rod 412 , a locking nut 416 , a support sleeve 413 , a support jack 414 and a top ball fork lug 415 The bottom ball fork lug 411 is connected to the slide plate 43, the top of the bottom ball fork lug 411, the support jack 414, the guide rod 412 and the top ball fork lug 415 are connected in turn, and the top ball fork lug 415 is connected with the side of the hoop 3 The sides are connected, the support sleeve 413 is sleeved on the guide rod 412 and the support jack 414 , and the lock nut 416 fixes the support jack 414 and the support sleeve 413 .

Specifically, the end of the piston rod of the support jack 414 is fixedly connected to one end of the guide rod 412 , and the support jack 414 drives the piston rod to extend and retract to complete the adjustment of the entire length of the temporary diagonal strut 41 . The support sleeve 413 is sleeved on the support jack 414 and the guide rod 412, and the guide rod 412 is slidably connected with the support sleeve 413. The support sleeve 413 can prevent the piston rod from being subjected to a large radial force and affect the support jack 414. At the same time, the support sleeve 413 also plays the role of strengthening the overall strength of the temporary diagonal strut 41 .

Further, as shown in FIG. 2 , two sets of oppositely arranged fixing plates 44 are fixed on the base 1 , a chute is formed between the two sets of fixing plates 44 , and the sliding plate 43 is slidably arranged in the chute.

Specifically, the fixing plate 44 is fixed on the first base plate 21 by bolts. After the linear adjustment of the track beam is completed and the fixing support device 5 is installed, the fixing plate 44 can be disassembled together with the temporary diagonal support device and applied to the next set of track beams in the linear adjustment device.

In this embodiment, as shown in FIG. 3 , the fixed support device 5 includes a pair of tie rods 51 , two bases 52 and two fixed diagonal struts 53 ; One end of the two fixed diagonal struts 53 is pivotally connected to the two bases 52 respectively, the other end is pivotally connected to the hoop 3, and the two ends of the pull rod 51 are respectively connected to the two fixed diagonal braces 53.

Specifically, the two fixed diagonal struts 53 are arranged on the same side of the hoop 3 and at an included angle, and the two together complete the support for the track beam. The strength of the fixed diagonal strut 53 is prevented to prevent radial bending of the fixed diagonal strut 53 .

Preferably, in this embodiment, a through hole is provided at the same position of the fixed diagonal strut 53 , the pair of tie rods 51 pass through the through holes on the pair of fixed diagonal struts 53 , and both ends are fixed by nuts.

It is worth noting that the vertical jack 26, the horizontal jack 25, the vertical jack 24 and the support jack 414 are all hydraulic jacks. At the same time, the length adjustment method of the fixed diagonal strut 53 is a mechanical method, which can be adjusted manually. The structure is simpler, and the temporary support device 4 is replaced with the temporary support device 4, which improves the turnover use efficiency of the temporary support device 4 and reduces the amount of equipment capital occupied.

Preferably, in this embodiment, there are two sets of temporary support devices 4 and fixed support devices 5 , two sets of temporary support devices 4 are symmetrically arranged on both sides of the hoop 3 , and two sets of fixed support devices 5 are symmetrically arranged on the hoop 3 on both sides.

Finally, as shown in FIG. 5 , the hoop 3 in this embodiment includes a top plate 31 , a bottom connecting plate 33 and two side plates 32 ; the upper ends of the two side plates 32 are pivotally connected to both ends of the top plate 31 , and the lower ends are respectively connected to the bottom The connecting plate 33 is connected, and the outer side of the side plate 32 is provided with an ear plate 34 for pivoting with the temporary diagonal brace 41 and the fixed diagonal brace 53 .

Specifically, when the two side plates 32 are arranged in parallel with each other, the distance between the two side plates 32 is equal to the width of the rail beam, and baffles 35 are fixed on both ends of the upper surface of the bottom connecting plate 33 by bolts. The two side plates 32 When the lower end surface of the bottom connecting plate 33 is in contact with the upper surface of the bottom connecting plate 33, the outer surface of the side plate 32 can abut with the baffle plate 35. At this time, the hoop 3 forms a closed annular hole. When the track beam is fixed in the annular hole, The side plate 32 is clamped between the baffle plate 35 and the rail beam to ensure the fixation of the structure of the hoop 3 . When the hoop 3 needs to be disassembled after the installation of the rail beam, the baffle plate 35 only needs to be removed from the bottom connecting plate 33, and the side plate 32 can be separated from the bottom connecting plate 33. Then, the top plate 31 and the two side plates 32 can be directly Remove from track beam.

When this embodiment uses the above-mentioned rail beam linear adjustment device to adjust the rail beam, the following steps are included in sequence:

S1: Set the top plate 31 and the side plates 32 of the hoop 3 at the designated position of the prefabricated track beam;

S2: Install the linear adjusting device 2 on the base 1, and connect the end of the vertical jack 26 in the linear adjusting device 2 with the bottom connecting plate 33 of the hoop 3;

At this time, the upper end surface of the end portion of the piston rod of the vertical jack 26 is a large-area horizontal surface, and the bottom connecting plate 33 can be directly placed on the upper end surface of the end portion.

S3: hoist the track beam to the bottom connecting plate 33 with a sling, and then fix the side plate 32 and the bottom connecting plate 33 of the hoop 3;

At this time, the fixing of the side plate 32 and the bottom connecting plate 33 is completed by clamping the side plate 32 with the baffle 35 and the rail beam.

S4: Install the temporary support device 4, adjust the length of the temporary diagonal strut 41, and connect the third base 52 and the slide plate 43 through the connecting rod 42;

The temporary support device 4 first completes the position calibration of the track beam, and ensures that the track beam does not deflect during the subsequent movement process.

S5: Adjust the position of the track beam through the vertical jack 24, the horizontal jack 25, and the vertical jack 26. After the adjustment is completed, install the fixed support device 5 and disassemble the temporary support device 4;

When the track beam is docked with the end of the track beam that has been installed, it means that the adjustment is completed.

S6: Install the permanent support, and carry out post-casting construction between the adjusted track beam and the installed track beam;

After the permanent support is in place and the anchor hole is grouted, the permanent support is located just below the track beam, and the upper end face of the permanent support is in close contact with the lower end face of the track beam.

S7: Preliminarily connect the permanent support and the track beam by bolts, remove the fixed support device 5, move the end of the vertical jack 26 down, and remove the hoop 3;

At this time, the track beam is completely acting on the permanent support, the vertical jack 26 is separated from the hoop 3, and the track beam linear adjustment equipment can be completely disassembled for use in the installation and construction of the next track beam.

S8: Tighten the connecting bolts of the permanent support and the track beam.

The linear adjustment method of the track beam provided by the embodiment of the present invention completes the vertical, horizontal and vertical adjustment of the track beam through the vertical jack 24, the horizontal jack 25 and the vertical jack 26, and the three kinds of jacks are integrated and controlled to make the system synchronous Well, the synchronization accuracy between the jacks at each action point reaches ±1mm, and the auxiliary pressure and displacement synchronization monitoring functions ensure the construction accuracy of the track beam installation. At the same time, during the linear adjustment process, the temporary support device 4 provides a balanced support force against overturning of the track beam under wind load and inclination state, so as to ensure the safety during the installation and construction of the track beam. In addition, by replacing the temporary fixing device with the fixing support device 5, the service cycle of the temporary fixing device is shortened, the turnover use efficiency of the equipment system is improved, and the capital occupation of the equipment is reduced. Finally, after the fixing of the track beam and the permanent support is completed, the fixed support device 5 can be disassembled and used immediately in the installation and construction of the next track beam. Such a cyclic operation and construction further improves the utilization rate of equipment turnover.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that : it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the various embodiments of the present utility model Scope of technical solutions.

Claims (10)

1. A track beam linear adjustment device, characterized in that it comprises a base, a linear adjustment device, a temporary support device, a fixed support device and a hoop that can be sleeved and fixed on the track beam; The linear adjustment device connects the base and the hoop, and can complete the horizontal, vertical and vertical movement of the rail beam in the hoop, and the temporary support device is detachably connected to the The base and the hoop can ensure that the track beam in the hoop will not overturn when moving, and the fixed support device can be detachably connected to the base and the hoop to ensure The track beam in the hoop is relatively fixed with the base. 2. The rail beam linear adjustment device according to claim 1, wherein the linear adjustment device comprises a longitudinal jack, a transverse jack, a vertical jack, and a first bottom plate, a second bottom plate and the third bottom plate; The first bottom plate is fixed on the base, the end portion and the cylinder body of the longitudinal jack are respectively connected with the first bottom plate and the second bottom plate, and the cylinder body and the end portion of the lateral jack are respectively connected with the first bottom plate and the second bottom plate. The second bottom plate is connected with the third bottom plate; the cylinder body of the vertical jack is connected with the third bottom plate, and the end portion supports the hoop. 3. The rail beam linear adjustment device according to claim 2, characterized in that, there is one lateral jack, and two longitudinal jacks and two vertical jacks; The first base plate is respectively fixed with two oppositely arranged first mounting seats on both sides of the second base plate for fixing the top part of the longitudinal jack, and a middle of the second base plate is provided for fixing the horizontal The second mounting seat of the jack cylinder, the middle of the third bottom plate is provided with a working hole that can be sleeved with the second mounting seat, and the third bottom plate is provided on both sides of the working hole for placing the vertical To the U-shaped limit groove of the cylinder body of the jack. 4. The rail beam linear adjustment device according to claim 2 or 3, wherein the temporary support device comprises a connecting rod, a sliding plate and a temporary diagonal strut with adjustable length; Both ends of the temporary diagonal strut are pivotally connected to the hoop and the sliding plate respectively, the sliding plate is slidably arranged on the base, the sliding direction of the sliding plate is horizontal, and the two ends of the connecting rod They are respectively fixedly connected with the sliding plate and the third bottom plate. 5. The track beam linear adjustment device according to claim 4, wherein the temporary diagonal strut comprises a bottom ball fork lug, a guide rod, a lock nut, a support sleeve, a support jack and a top ball fork Ear; The bottom ball fork lug is connected to the slide plate, the top of the bottom ball fork lug, the support jack, the guide rod and the top ball fork lug are connected in sequence, and the top ball fork lug is connected in sequence. The ear is connected with the side of the hoop, the support sleeve is sleeved on the guide rod and the support jack, and the lock nut fixes the support jack and the support sleeve. 6 . The track beam linear adjustment device according to claim 4 , wherein two sets of oppositely arranged fixed plates are fixed on the base, and a chute is formed between the two sets of the fixed plates, and the sliding plate slides. 7 . set in the chute. 7 . The track beam linear adjustment device according to claim 4 , wherein the fixed support device comprises a pair of tie rods, two bases and two fixed diagonal struts; the two bases are fixed on the base. 8 . One end of the two fixed diagonal struts is pivotally connected to the two bases, and the other end is pivotally connected to the hoop; the two ends of the pair of pull rods are respectively connected to two one of the fixed diagonal struts. 8 . The track beam linear adjustment device according to claim 7 , wherein there are two groups of the temporary support device and the fixed support device, and the two groups of the temporary support devices are symmetrically arranged on the side of the hoop. 9 . On both sides, two sets of the fixed support devices are symmetrically arranged on both sides of the hoop. 9. The track beam linear adjustment device according to claim 8, wherein the hoop comprises a top plate, a bottom connecting plate and two side plates; The upper ends of the two side plates are pivotally connected to the two ends of the top plate, respectively, and the lower ends are respectively connected to the bottom connecting plate. The lugs to which the struts are pivoted. 10 . The track beam linear adjustment device according to claim 9 , wherein baffles are fixed on both ends of the upper surface of the bottom connecting plate, and the distance between the two baffles is equal to the two sides. 11 . The sum of the thicknesses of the slab and the rail beam.

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