A fine adjustment device for double-block sleeper laying

Abstract

The present application belongs to the field of ballastless track construction technology, and particularly relates to a fine adjustment device for double-block sleeper laying, which comprises a transverse adjustment mechanism, a supporting leg mounting seat and an elevation adjustment assembly; the transverse adjustment mechanism can be detachably connected with the double-block sleeper; and the double-block sleeper is moved transversely, so that the height of the double-block sleeper is adjusted; the elevation adjustment assembly comprises a lateral arm, an inner sleeve and an outer sleeve; and the height of the supporting leg mounting seat can be controlled; the supporting leg mounting seat comprises a first pitching shaft, a vertical threaded rod, a second pitching shaft and a mounting seat body; and the mounting seat body is used for adjusting the pitching angle. In the scheme, the movable parts of the structure are not easily adhered by concrete, the subsequent use is ensured, and the difficulty of centerline adjustment is reduced; the contact area of the transverse supporting leg and the supporting leg mounting seat is small, so that the frictional resistance is reduced; the elevation adjustment assembly cooperates with the supporting leg mounting seat, so that the control and adjustment of the left-right inclination of the double-block sleeper are realized, thereby meeting the requirements of ballastless track construction.

Description

Technical Field

[0001] This invention belongs to the field of ballastless track construction technology, specifically relating to a fine-tuning device for laying double-block sleepers. Background Technology

[0002] Double-block sleepers are prefabricated modules used in ballastless track paving construction. They are structures formed by casting concrete at both ends of the same sleeper to create two sleeper blocks. Existing patent CN119121715A discloses a centerline and height adjustment device for ballastless track paving construction. This device enables batch paving of sleeper blocks, thereby improving the speed and efficiency of ballastless track paving construction.

[0003] However, this technology has some problems in practical use. For example, concrete tends to stick to the moving parts of the device, affecting the accuracy and reliability of the adjustment. At the same time, the device also has a complex structure. Therefore, it is necessary to improve and upgrade the structure to improve construction efficiency and adjustment accuracy. Summary of the Invention

[0004] To address the aforementioned problems in existing technologies, this solution provides a fine-tuning device for laying double-block sleepers.

[0005] The technical solution adopted in this invention is as follows:

[0006] A fine-tuning device for laying twin-block sleepers includes a lateral adjustment mechanism, a leg mounting base, and an elevation adjustment assembly.

[0007] The lateral adjustment mechanism can be detachably connected to the double-block sleeper; several lateral support legs are provided on both the left and right sides of the lateral adjustment mechanism; a lateral drive motor is fixedly installed at the end of one of the lateral support legs; a lateral lead screw is provided inside the lateral support leg, and a transverse lead screw sleeve is threaded onto the lateral lead screw; the lateral drive motor is connected to the lateral lead screw; the transverse lead screw sleeve is fixedly connected to the support leg mounting seat so as to control the lateral adjustment mechanism to move left and right when the lateral lead screw rotates; the lateral lead screws on the left and right sides of the lateral adjustment mechanism are synchronously linked through a transmission rod;

[0008] The elevation adjustment assembly includes a lateral arm, an inner sleeve, and an outer sleeve. The outer sleeve is tubular, and the lateral arm is fixed to the outer wall of the outer sleeve and connected to the outrigger mounting base. The inner sleeve is slidably disposed inside the outer sleeve. The lower end of the inner sleeve extends out of the outer sleeve, and the upper end of the inner sleeve is fixedly connected to an adjustment threaded sleeve, which is threadedly engaged with an adjustment screw. The adjustment screw is coaxially disposed inside the outer sleeve and is driven by an adjustment motor to control the height of the outrigger mounting base.

[0009] The outrigger mounting base includes a first pitch axis, a vertical threaded rod, a second pitch axis, and a mounting base body. The mounting base body is box-shaped, and the lateral outrigger is slidably inserted into the lower part of the mounting base body. The mounting base body is rotatably connected to the lateral arm via the first pitch axis, and the second pitch axis is rotatably connected to the lateral arm. The upper end of the vertical threaded rod is rotatably connected to the mounting base body, and the lower end of the vertical threaded rod is perpendicularly connected to the second pitch axis and threadedly engaged with the second pitch axis to adjust the pitch angle of the mounting base body.

[0010] As an alternative or supplement to the above structure: the lateral adjustment mechanism includes a rail fixing frame, a sample rail, a lateral drive motor, and the lateral support legs; two parallel sample rails are used to detachably connect multiple double-block sleepers; the rail fixing frame is vertically fixedly connected to the sample rail, and each rail fixing frame has detachable lateral support legs connected to both ends.

[0011] As an alternative or supplement to the above structure: the fixing crossbar of the rail fixing frame is provided with two T-shaped grooves, which are located at the left and right ends of the fixing crossbar respectively; the bottom of the sample rail can extend into the T-shaped groove, and anti-slip pads are provided on the left and right sides of the web of the sample rail respectively, with wedge blocks abutting between the anti-slip pads and the sidewalls of the T-shaped grooves.

[0012] As an alternative or supplement to the above structure: the transmission rod is set inside the fixed crossbar, and the end of the transmission rod passes through the anti-slip pad, the sample rail and the anti-slip pad; when there are two transmission rods in the fixed crossbar, the two transmission rods are connected by a universal connector.

[0013] As an alternative or supplement to the above structure: a square through hole is provided at the lower part of the mounting body, through which the transverse support leg passes; a long strip needle roller is provided between the support leg mounting base and the transverse support leg, the needle roller being used to reduce the frictional resistance between the support leg mounting base and the transverse support leg.

[0014] As an alternative or supplement to the above structure: a needle roller is provided between the top wall of the lateral support leg and the upper wall of the square through hole, and a needle roller is also provided between the bottom wall of the lateral support leg and the lower wall of the square through hole.

[0015] As an alternative or supplement to the above structure: the two ends of the lateral support leg have limiting plates, the edges of which extend beyond the outer side wall of the lateral support leg; the limiting plate at one end of the lateral support leg is fixedly connected to the rail fixing frame by bolts, and the end of the lateral lead screw is connected to the other end of the lateral support leg by a bearing.

[0016] As an alternative or supplement to the above structure: a manual adjustment shaft is provided above the height adjustment motor, and the manual adjustment shaft is connected to the rotating shaft of the height adjustment motor.

[0017] As an alternative or supplement to the above structure: the lower end of the inner sleeve is detachably connected to a foot pad or a heightening foot, and the upper end of the foot pad, the upper end of the heightening foot, and the outer side of the lower end of the inner sleeve are provided with connecting ears; the two connecting ears are connected by bolts; an end ring is connected to the lower end of the outer sleeve, and the end ring is sleeved on the outside of the inner sleeve and seals the gap between the outer sleeve and the inner sleeve.

[0018] As an alternative or supplement to the above structure: a dustproof shell is provided outside the height adjustment motor; the manual adjustment shaft is also located inside the dustproof shell, and the upper end of the manual adjustment shaft extends upward outside the dustproof shell; an upper base plate is provided above the height adjustment motor, the upper base plate is fixedly connected to the dustproof shell, and the manual adjustment shaft is connected to the center of the upper base plate through a bearing; a lower base plate is fixedly connected to the upper end of the outer sleeve; the lower edge of the dustproof shell is sealed to the edge of the lower base plate.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. This solution will not create open gaps in the lateral adjustment mechanism, and concrete will not flow into the gaps, thus affecting the subsequent use of the equipment and the difficulty of centerline adjustment;

[0021] 2. The lateral adjustment mechanism only contacts the lateral support leg and the support leg mounting base, thereby reducing the contact area between the two and reducing frictional resistance;

[0022] 3. The elevation adjustment component can control the height of the left or right side of the lateral adjustment mechanism. Together with the outrigger mounting base, it can control and adjust the left and right tilt of the double-block sleeper, thereby meeting the tilt slope requirements for laying double-block sleepers. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0024] Figure 1 This is a diagram showing the construction status of double-block sleepers;

[0025] Figure 2 This is a cross-sectional structural diagram of the application scenario of the fine-tuning device in this solution;

[0026] Figure 3 This is a cross-sectional structural diagram of another application scenario of the fine-tuning device in this solution;

[0027] Figure 4 This is a cross-sectional structural diagram of the lateral adjustment mechanism;

[0028] Figure 5 It is a structural diagram of the assembly of the sample rail, rail fixing frame, and double-block sleeper;

[0029] Figure 6This is a structural diagram showing the fit between the lateral support leg and the support leg mounting base;

[0030] Figure 7 It is a structural diagram of the cooperation between the rail fixing frame and the lateral support leg;

[0031] Figure 8 yes Figure 7 A schematic diagram of the structure of part A in the middle;

[0032] Figure 9 This is a schematic diagram of the elevation adjustment component in this scheme;

[0033] Figure 10 This is a cross-sectional structural diagram of the elevation adjustment component for installing foot pads;

[0034] Figure 11 This is a cross-sectional structural diagram of the elevation adjustment component for installing the height-increasing feet.

[0035] In the diagram: 1-Leg mounting base; 11-Mounting base body; 15-Needle roller; 16-Wall hole; 2-Double-block sleeper; 3-Transverse adjustment mechanism; 31-Transverse support leg; 32-Transverse lead screw; 33-Transverse lead screw sleeve; 34-Transmission rod; 35-Sample rail; 36-Rail fixing frame; 361-Fixing crossbar; 362-T-slot; 363-Anti-slip pad; 364-Positioning hole; 365-Wedge block; 37-Transverse drive motor; 38-Universal connector; 4-Height 41-Adjustable assembly; 42-Side arm; 43-Foot pad; 44-Connecting ear; 45-End ring; 46-Outer sleeve; 47-Dustproof shell; 48-Manual adjustment shaft; 49-Height adjustment motor; 40-Upper seat plate; 410-Lower seat plate; 411-Inner sleeve; 412-Height adjustment screw; 413-Center mounting hole; 414-Front mounting groove; 415-Height adjustment threaded sleeve; 416-Heightening foot; 417-Transverse screw; 5-Support rod; 6-Ballastless track foundation; 7-Concrete pouring layer. Detailed Implementation

[0036] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this solution without creative effort are within the protection scope of this solution.

[0037] Example 1

[0038] like Figures 1 to 11 As shown, this embodiment designs a fine-tuning device for laying double-block sleepers 2, including a lateral adjustment mechanism 3, a leg mounting base 1, and an elevation adjustment component 4, etc.

[0039] The lateral adjustment mechanism 3 can be detachably connected to the double-block sleeper 2, specifically adopting the structure described in Embodiment 2; several lateral support legs 31 are provided on both the left and right sides of the lateral adjustment mechanism 3; a lateral drive motor 37 is fixedly installed at the end of one of the lateral support legs 31; a lateral lead screw 32 is provided inside the lateral support leg 31, and a transverse lead screw sleeve 33 is threaded onto the lateral lead screw 32; the lateral drive motor 37 is connected to the lateral lead screw 32 in a transmission connection; the transverse lead screw sleeve 33 is fixedly connected to the support leg mounting seat 1 so as to control the lateral adjustment mechanism 3 to move left and right when the lateral lead screw 32 rotates; the lateral lead screws 32 on the left and right sides of the lateral adjustment mechanism 3 are synchronously linked through the transmission rod 34.

[0040] The elevation adjustment assembly 4 includes a lateral arm 41, an inner sleeve 411, and an outer sleeve 45, specifically adopting the structure described in Embodiment 3; the outer sleeve 45 is tubular, the lateral arm 41 is fixed to the outer wall of the outer sleeve 45 and connected to the outrigger mounting seat 1; the inner sleeve 411 is slidably disposed inside the outer sleeve 45; the lower end of the inner sleeve 411 extends out of the outer sleeve 45, and the upper end of the inner sleeve 411 is fixedly connected to an adjustment threaded sleeve 415, which is threadedly engaged with an adjustment screw 412; the adjustment screw 412 is coaxially disposed inside the outer sleeve 45 and is driven by an adjustment motor 48 to control the height of the outrigger mounting seat 1.

[0041] The outrigger mounting base 1 includes components such as a first pitch axis, a vertical threaded rod, a second pitch axis, and a mounting base body 11, specifically adopting the structure described in Embodiment 4; the mounting base body 11 is box-shaped, and the transverse outrigger 31 is slidably inserted into the lower part of the mounting base body 11; the mounting base body 11 is rotatably connected to the lateral arm 41 via the first pitch axis, and the second pitch axis is rotatably connected to the lateral arm 41; the upper end of the vertical threaded rod is rotatably connected to the mounting base body 11, and the lower end of the vertical threaded rod is vertically connected to the second pitch axis and threadedly engaged with the second pitch axis to adjust the pitch angle of the mounting base body 11.

[0042] The construction method for the structure in this embodiment during use includes the following steps:

[0043] S1: Pre-connect the two sample rails 35 with multiple double-block sleepers 2, and pre-connect the rail fixing frame 36 with the sample rails 35.

[0044] S2: Use a lifting device to connect the rail fixing frame 36, and hoist the double-block sleeper 2 onto the ballastless track base, and initially position the double-block sleeper 2;

[0045] S3: A transverse support leg 31 is connected to both ends of each rail fixing frame 36. A support leg mounting seat 1 is slidably connected to each transverse support leg 31. Each support leg mounting seat 1 is rotatably connected to the elevation adjustment component 4.

[0046] S4: The height of the outrigger mounting base 1 is adjusted by the elevation adjustment component 4, and then the pitch angle of the outrigger mounting base 1 is adjusted so that the inclination of the double-block sleeper 2 reaches the preset value; then, the lower end of the elevation adjustment component 4 is made to abut against the ballastless track foundation 6, and the upper end of the elevation adjustment component 4 is connected to the ballastless track through the support rod 5 to maintain the state of the double-block sleeper 2.

[0047] S5: Disassemble the lifting device, further adjust the height and pitch angle of the outrigger mounting seat 1, and then adjust the centerline position of the rail fixing frame 36 so that the centerline of the double-block sleeper 2 reaches the predetermined position.

[0048] S5: Install templates on the left and right sides of the double-block sleeper 2 on the ballastless track foundation 6; pour concrete between the templates to form a concrete pouring layer 7 to fix the double-block sleeper 2; after the concrete has cured, disconnect the connection between the sample rail 35 and the double-block sleeper 2 and the connection between the elevation adjustment component 4 and the ballastless track foundation 6, and use a lifting device to lift it away.

[0049] Example 2

[0050] Based on the structure of Example 1, this example designs a specific structure for a transverse adjustment mechanism 3. The transverse adjustment mechanism 3 includes components such as a rail fixing frame 36, a sample rail 35, a transverse drive motor 37, and transverse support legs 31.

[0051] The test rail 35 includes a rail base, rail web, and rail head. The rail head is located above the rail base, and the rail web is located between the rail base and the rail head. Two parallel test rails 35 are used to detachably connect multiple double-block sleepers 2; each double-block sleeper 2 is connected to two test rails 35 at both ends.

[0052] The rail fixing frame 36 includes components such as a fixing crossbar 361, anti-slip pads 363, and wedge blocks 365. The fixing crossbar 361 is a long rod structure, specifically a square tube structure. Both ends of the rail fixing frame 36 can be vertically fixedly connected to two sample rails 35. Specifically, the fixing crossbar 361 has two T-slots, located at the left and right ends of the fixing crossbar 361 respectively. The bottom of the sample rail 35 can extend into the T-slots. Anti-slip pads 363 are placed on the left and right sides of the rail web, and wedge blocks 365 abut against the anti-slip pads 363 and the sidewalls of the T-slots. The T-slots are perpendicular to the fixing crossbar 361. The bottom width of the T-slot is greater than the opening width, and the opening width can be less than the rail bottom width. The opening width of the T-slot is greater than the thickness of the rail web. The T-slots face upwards, and the distance between the two T-slots on the fixed crossbar 361 is equivalent to the distance between the two sample rails 35.

[0053] When the rail fixing frame 36 is connected to the sample rail 35, the bottom of the sample rail 35 extends into the T-groove, and anti-slip pads 363 are respectively placed on the left and right sides of the rail web. The sides of the anti-slip pads 363 abut against the rail web of the sample rail 35. Then, wedge blocks 365 are inserted between the anti-slip pads 363 and the side wall of the T-groove. The wedge blocks 365 can be hammered with a tool to make one side of the wedge block 365 press firmly against the anti-slip pads 363 and the other side press firmly against the side wall of the T-groove. Through the above steps, the rail fixing frame 36 and the sample rail 35 can be fixedly connected.

[0054] A positioning hole 364 with internal threads can be provided on the wedge block 365, and a waist-shaped hole can be provided on the anti-slip pad 363; then, a screw is used to pass through the positioning hole 364 and the waist-shaped hole and abut against the rail web to reduce the probability of the wedge block 365 loosening. When the wedge block 365 has a tendency to slide along the length direction of the sample rail 35, the nut part of the screw can be blocked by the fixing crossbar 361, thereby reducing the probability of the wedge block 365 falling off.

[0055] The rail fixing frame 36 is detachably connected to two transverse support legs 31 at both ends; a support leg mounting seat 1 is provided at each of the two transverse support legs 31; the support leg mounting seat 1 includes a square box-shaped mounting seat body 11, and a square through hole is provided at the lower part of the mounting seat body 11, through which the transverse support leg 31 passes; a transverse lead screw 32 is provided in the transverse support leg 31, and a transverse lead screw sleeve 33 is threaded onto the transverse lead screw 32; the transverse lead screw sleeve 33 is fixedly connected to the mounting seat body 11; a transverse drive motor 37 is fixedly installed at the end of one of the transverse support legs 31, and the transverse drive motor 37 is connected to the transverse lead screw 32 for transmission; a transmission rod 34 is provided in the rail fixing frame 36, and the transverse lead screws 32 in the two transverse support legs 31 are synchronously linked through the transmission rod 34. The transmission rod 34 passes through the hole in the middle of the anti-slip pad 363 and the wedge block 365. The end of the transmission rod 34 extends into the transverse support leg 31 and is inserted into the end of the transverse lead screw 32. When there are two transmission rods 34 in the rail fixing frame 36, the two transmission rods 34 are connected by a universal connector 38.

[0056] When the two transverse lead screws 32 rotate synchronously, the transverse support leg 31 moves telescopically along the square through hole to adjust the centerline position of the double-block sleeper 2.

[0057] Example 3

[0058] Based on the structures of embodiments 1-2, this embodiment designs a specific structure for an elevation adjustment component 4. The elevation adjustment component 4 includes components such as a lateral arm 41, an outer sleeve 45, an inner sleeve 411, a height adjustment motor 48, a height adjustment screw 412, a manual adjustment shaft 47, and the lateral arm 41.

[0059] The lateral arm 41 is fixed to the outer wall of the outer sleeve 45 and is used to connect the sleeper fixing frame. The sleeper fixing frame can be detachably connected to multiple double-block sleepers 2 to facilitate the positioning and alignment of multiple double-block sleepers 2 on the ballastless track base.

[0060] The outer sleeve 45 is tubular, with an opening at its lower end. The inner sleeve 411 is also tubular, located inside the outer sleeve 45, with its lower end extending out of the outer sleeve 45. The inner sleeve 411 slides within the outer sleeve 45 and can continuously extend from its lower end. An end ring 44 is connected to the lower end of the outer sleeve 45, fitting around the inner sleeve 411 and sealing the gap between them. This prevents impurities such as concrete from entering the outer sleeve 45 and affecting the normal expansion and contraction of the inner sleeve 411.

[0061] The lower end of the inner sleeve 411 extends beyond the outer sleeve 45 and is detachably connected to a foot pad 42 or a heightening foot 416. Connecting ears 43 are provided on the upper ends of the foot pad 42, the upper ends of the heightening foot 416, and the outer side of the lower end of the inner sleeve 411. The two connecting ears 43 are connected by bolts, allowing the inner sleeve 411 to connect to the foot pad 42 or the heightening foot 416. When the length of the inner sleeve 411 is sufficient for its lower end to abut against the reference surface of the ballastless track base, the foot pad 42 is connected to the lower end of the inner sleeve 411 and placed against the reference surface. When the length of the inner sleeve 411 is insufficient, the heightening foot 416 can be connected to the lower end of the inner sleeve 411, thereby abutting against the reference surface of the ballastless track base via the heightening foot 416. A transverse screw 417 is vertically connected to the heightening foot 416. The two are threaded together, and the transverse screw 417 can abut against the inside of the ballastless track base from the side to facilitate alignment.

[0062] The height adjustment threaded sleeve 415 is fixedly connected to the upper end of the inner sleeve 411, and the height adjustment threaded sleeve 415 is threadedly engaged with the height adjustment screw 412; the height adjustment screw 412 is coaxially disposed inside the outer sleeve 45, and its upper end is drivenly connected to the height adjustment motor 48; the manual adjustment shaft 47 is drivenly connected to the rotating shaft of the height adjustment motor 48. The rotating shaft of the height adjustment motor 48 can be coaxially connected to the manual adjustment shaft 47 and the height adjustment screw 412 to save horizontal space.

[0063] The height adjustment motor 48 is fixed to the upper end of the outer sleeve 45, and a dustproof shell 46 is provided outside the height adjustment motor 48. The manual adjustment shaft 47 is also located inside the dustproof shell 46, and the upper end of the manual adjustment shaft 47 extends upward beyond the dustproof shell 46. The dustproof shell 46 can effectively prevent dust and prevent concrete from seeping in, thus affecting the normal use of the height adjustment motor 48. A lower base plate 410 is fixedly connected to the upper end of the outer sleeve 45; the lower edge of the dustproof shell 46 is sealed to the edge of the lower base plate 410. A sealing ring is provided in the gap between the dustproof shell 46 and the manual adjustment shaft 47. An upper base plate 49 is provided above the height adjustment motor 48, and the upper base plate 49 is fixedly connected to the dustproof shell 46. The manual adjustment shaft 47 is connected to the center of the upper base plate 49 through a bearing. The upper base plate 49 and the lower base plate 410 effectively improve the stability of the installation of the manual adjustment shaft 47 and the height adjustment motor 48, extend their service life and improve the smoothness of adjustment.

[0064] The side arms 41 include two that are laterally parallel and spaced apart from each other. The gap between the side arms 41 is used to install the end of the outrigger mounting base 1. The side arms 41 are provided with a central mounting hole 413 and a front mounting groove 414, which facilitate the connection between the outrigger mounting base 1 and the side arms 41.

[0065] Example 4

[0066] Based on the structures of embodiments 1-3, this embodiment designs a support leg mounting base 1 that facilitates adjustment of the tilt angle of the left and right sides of the rail fixing frame 36. Each rail fixing frame 36 has a detachable transverse support leg 31 at both ends.

[0067] The leg mounting base includes a mounting base body 11, a first pitch axis, a vertical threaded rod, and a second pitch axis. The mounting base body 11 is box-shaped, with a square through hole at the bottom, extending through both sides of the leg mounting base 11. The first pitch axis is located at one end of the mounting base body 11, and the second pitch axis is located at the other end. The upper end of the vertical threaded rod is ball-shaped and rotatably connected to the mounting base body 11. The lower end of the vertical threaded rod is perpendicularly connected to the second pitch axis and threadedly engaged with it.

[0068] A needle roller 15 is provided between the top wall of the lateral support leg 31 and the upper wall of the square through hole, and a needle roller 15 is also provided between the bottom wall of the lateral support leg 31 and the lower wall of the square through hole. In the above structure, since the lateral adjustment mechanism 3 only contacts the support leg mounting base 1 through the lateral support leg 31, the contact area between the two can be reduced, thus reducing frictional resistance, compared with the prior art of the patent with publication number CNA. At the same time, the needle roller 15 is provided between the lateral support leg 31 and the support leg mounting base 1. During the lateral movement of the lateral support leg 31, the needle roller 15 rolls laterally, thereby effectively reducing frictional resistance, reducing the difficulty of lateral position adjustment, and improving adjustment accuracy.

[0069] A transverse lead screw 32 is disposed within a transverse support leg 31. The end of the transverse lead screw 32 is connected to the transverse support leg 31 via a bearing, allowing the transverse lead screw 32 to rotate within the transverse support leg 31 without relative movement in the lateral direction. A transverse lead screw sleeve 33 is threaded onto the transverse lead screw 32, and the transverse lead screw sleeve 33 is fixedly connected to the mounting base body 11. When the transverse lead screw 32 rotates, it controls the transverse support leg 31 to extend and retract along a square through hole. An elongated wall hole 16 is provided on the side wall of the transverse support leg 31, and the transverse lead screw sleeve 33 is fixedly connected to the mounting base body 11 at the wall hole 16.

[0070] The above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation; it is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom remain within the scope of this technology.

Claims

1. A fine-tuning device for laying double-block sleepers, characterized in that: It includes a lateral adjustment mechanism (3), a leg mounting base (1), and an elevation adjustment assembly (4); The transverse adjustment mechanism (3) can be detachably connected to the double-block sleeper (2); several transverse support legs (31) are provided on both the left and right sides of the transverse adjustment mechanism (3); a transverse drive motor (37) is fixedly installed at the end of one of the transverse support legs (31); a transverse lead screw (32) is provided inside the transverse support leg (31), and a transverse lead screw sleeve (33) is threaded onto the transverse lead screw (32); the transverse drive motor (37) is connected to the transverse lead screw (32) for transmission; the transverse lead screw sleeve (33) is fixedly connected to the support leg mounting seat (1) so as to control the transverse adjustment mechanism (3) to move left and right when the transverse lead screw (32) rotates; the transverse lead screws (32) on the left and right sides of the transverse adjustment mechanism (3) are synchronously linked through the transmission rod (34); The elevation adjustment assembly (4) includes a lateral arm (41), an inner sleeve (411), and an outer sleeve (45). The outer sleeve (45) is tubular, and the lateral arm (41) is fixed to the outer wall of the outer sleeve (45) and connected to the outrigger mounting seat (1). The inner sleeve (411) is slidably disposed inside the outer sleeve (45). The lower end of the inner sleeve (411) extends out of the outer sleeve (45), and the upper end of the inner sleeve (411) is fixedly connected to a height adjustment threaded sleeve (415). The height adjustment threaded sleeve (415) is threadedly engaged with the height adjustment screw (412). The height adjustment screw (412) is coaxially disposed inside the outer sleeve (45) and driven by a height adjustment motor (48) to control the height of the outrigger mounting seat (1). The outrigger mounting base (1) includes a first pitch axis, a vertical threaded rod, a second pitch axis, and a mounting base body (11). The mounting base body (11) is box-shaped, and the lateral outrigger (31) is slidably inserted into the lower part of the mounting base body (11). The mounting base body (11) is rotatably connected to the lateral arm (41) through the first pitch axis, and the second pitch axis is rotatably connected to the lateral arm (41). The upper end of the vertical threaded rod is rotatably connected to the mounting base body (11), and the lower end of the vertical threaded rod is vertically connected to the second pitch axis and threadedly engaged with the second pitch axis to adjust the pitch angle of the mounting base body (11). The lateral adjustment mechanism (3) includes a rail fixing frame (36), a sample rail (35), a lateral drive motor (37), and the lateral support leg (31); two parallel sample rails (35) are used to detachably connect multiple double-block sleepers (2); the rail fixing frame (36) is vertically fixed to the sample rail (35), and each rail fixing frame (36) has a detachable lateral support leg (31) at both ends; A square through hole is provided at the lower part of the mounting body (11), and the transverse support leg (31) passes through the square through hole; a long strip needle roller (15) is provided between the support leg mounting base (1) and the transverse support leg (31), and the needle roller (15) is used to reduce the frictional resistance between the support leg mounting base (1) and the transverse support leg (31); a needle roller (15) is provided between the top wall of the transverse support leg (31) and the upper wall of the square through hole, and a needle roller (15) is also provided between the bottom wall of the transverse support leg (31) and the lower wall of the square through hole. A manual adjustment shaft (47) is provided above the height adjustment motor (48), and the manual adjustment shaft (47) is connected to the rotating shaft of the height adjustment motor (48) via a transmission.

2. The fine-tuning device for laying double-block sleepers according to claim 1, characterized in that: The rail fixing frame (36) has two T-shaped grooves on its fixing crossbar (361), which are located at the left and right ends of the fixing crossbar (361) respectively. The bottom of the sample rail (35) can be inserted into the T-shaped groove. Anti-slip pads (363) are respectively placed on the left and right sides of the web of the sample rail (35), and wedge blocks (365) abut against the anti-slip pads (363) and the side wall of the T-shaped groove.

3. The fine-tuning device for laying double-block sleepers according to claim 2, characterized in that: The transmission rod (34) is set inside the fixed crossbar (361), and the end of the transmission rod (34) passes through the anti-slip pad (363), the sample rail (35) and the anti-slip pad (363); when there are two transmission rods (34) inside the fixed crossbar (361), the two transmission rods (34) are connected by a universal connector (38).

4. The fine-tuning device for laying double-block sleepers according to any one of claims 1-3, characterized in that: The transverse support leg (31) has limiting plates at both ends, with the edges of the limiting plates extending beyond the outer side wall of the transverse support leg (31); the limiting plate at one end of the transverse support leg (31) is fixedly connected to the rail fixing frame (36) by bolts, and the end of the transverse lead screw (32) is connected to the other end of the transverse support leg (31) by bearings.

5. The fine-tuning device for laying double-block sleepers according to any one of claims 1-3, characterized in that: The lower end of the inner sleeve (411) is detachably connected to a foot pad (42) or a height-increasing foot (416). The upper end of the foot pad (42), the upper end of the height-increasing foot (416), and the outer side of the lower end of the inner sleeve (411) are provided with connecting ears (43). The two connecting ears (43) are connected by bolts. An end ring (44) is connected to the lower end of the outer sleeve (45). The end ring (44) is fitted over the inner sleeve (411) and seals the gap between the outer sleeve (45) and the inner sleeve (411).

6. The fine-tuning device for laying double-block sleepers according to claim 5, characterized in that: A dust cover (46) is provided outside the height adjustment motor (48); the manual adjustment shaft (47) is also located inside the dust cover (46), and the upper end of the manual adjustment shaft (47) extends upward outside the dust cover (46); an upper seat plate (49) is provided above the height adjustment motor (48), the upper seat plate (49) is fixedly connected to the dust cover (46), and the manual adjustment shaft (47) is connected to the center of the upper seat plate (49) through a bearing; a lower seat plate (410) is fixedly connected to the upper end of the outer sleeve (45); the lower edge of the dust cover (46) is sealed to the edge of the lower seat plate (410).

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