Windproof rail clamping device of gantry crane

Abstract

The invention relates to a rail clamping device, and discloses a gantry crane windproof rail clamping device which comprises a rail clamping device body (3), the rail clamping device body (3) comprises two oppositely arranged clamps (301), a reset spring (302) and a hydraulic cylinder (303), the reset spring (302) and the hydraulic cylinder (303) are used for driving the clamps (301) to clamp and loosen on a rail, the rail clamping device body (3) is covered with the shell cover (4), and the bottom of the shell cover (4) is connected to a walking seat (1). The outer shell cover (4) comprises a left shell body (401) and a right shell body (402) which are both in a U-shaped plate shape and spliced oppositely, and further comprises a cover body (403) arranged on the left shell body (401) and the right shell body (402), and a pipe hole (404) for a pipeline to penetrate through is formed in the top of the end face, facing the control cabinet (2), of the outer shell cover (4). According to the rail clamping device, the shell cover (4) is arranged outside the rail clamping device, the rail clamping device can be effectively protected in the open-air environment, then stable and flexible work of the rail clamping device is guaranteed, and the construction safety risk caused by the fact that clamping blocks on a clamp (301) cannot completely clamp a rail or completely break away from the rail due to the rail clamping device is effectively reduced.

Description

Technical Field

[0001] The invention relates to a rail clamp, in particular to a windproof rail clamp for a gantry crane. Background Art

[0002] Hydraulic rail clamps are used for gantry lifting equipment. They are installed on the track and move with the gantry. The springs enable the clamping blocks of the two clamps to clamp the track and brake the gantry to prevent it from sliding due to unexpected thrust. When the clamps need to be released, the hydraulic cylinder drives the two clamps to separate from the track so that the gantry can move and operate.

[0003] The track clamp in the prior art generally includes a track clamp body and a control cabinet. The track clamp body includes two clamps controlled by a hydraulic cylinder. The hydraulic cylinder needs to be connected to the control cabinet through an oil pipe and a wire pipe. The movement of the clamp generally relies on a connecting rod mechanism, a reset spring, etc. to achieve the clamping and loosening of the track. Since the gantry is generally set outdoors and the track clamp is also heavy, it is generally placed on the construction site continuously during construction. The open air environment will affect the service life or movement flexibility of the hydraulic system, various connecting motion joints, reset springs, etc. in the track clamp. In actual work, these influences often cause the clamping block on the clamp to be unable to completely clamp the track or completely detach from the track. In this case, if the next step is performed, it is likely to cause construction safety risks. Summary of the invention

[0004] The invention aims at the problems existing in the hydraulic rail clamp in the prior art and provides a windproof rail clamp for a gantry crane.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions: A windproof track clamp for a gantry crane comprises a traveling seat capable of traveling on a track, a control cabinet and a track clamp body being mounted on the traveling seat, the track clamp body comprising two clamps arranged opposite to each other and a return spring and a hydraulic cylinder for respectively driving the clamps to clamp and release on the track, and an outer shell cover being arranged on the outside of the track clamp body and the bottom of which is connected to the traveling seat, the outer shell cover comprising a left shell and a right shell which are both U-shaped plates and relatively spliced, and a cover body arranged on the left shell and the right shell body, one end of the cover body being hinged to the left shell or the right shell body, and the other end being buckled with the right shell body or the left shell body, and a pipe hole for the pipeline to pass through is provided on the top of the end surface of the outer shell cover facing the control cabinet.

[0006] Preferably, the outer shell is provided with a calibration observation port and a clamp position calibration mechanism installed at the calibration observation port, the clamp position calibration mechanism includes a connecting rod with one end hinged at the middle of the clamp and the other end extending out of the calibration observation port, a clamping calibration plate and a loosening calibration plate are installed on the connecting rod, and a sliding plate arranged between the clamping calibration plate and the loosening calibration plate is also provided on the connecting rod, the connecting rod can slide in the sliding plate, when the clamping calibration plate moves to a position against the sliding plate, the clamp is in a fully clamped state on the track, and when the loosening calibration plate moves to a position against the sliding plate, the clamp is in a fully disengaged state on the track. The provision of the clamping calibration plate, the loosening calibration plate and the sliding plate can realize an intuitive judgment of whether the clamp is in a fully disengaged state or a fully clamped state.

[0007] Preferably, the outer shell further comprises a sliding plate mounting mechanism, which comprises two hinge seats respectively arranged on both sides of the calibration observation port, the two hinge seats can slide on the outer shell in a vertical direction, the two hinge seats are respectively provided with a hinge rod, and the sliding plate is mounted between the two hinge rods. The sliding plate mounting mechanism can realize stable installation of the sliding plate on the outer shell.

[0008] Preferably, a vertically arranged slide groove is provided on the outer shell cover and on both sides of the calibration observation port, and a slide rod which passes through the slide groove horizontally and can slide in the slide groove and a limit plate which limits the axial position of the slide rod are provided on the hinge seat.

[0009] Preferably, an external thread is provided on the outer surface of the connecting rod, and the clamping calibration plate and the loosening calibration plate are both threadedly connected to the connecting rod. The clamping calibration plate and the loosening calibration plate are both threadedly connected to the connecting rod, and then the position of the clamping calibration plate on the connecting rod can be adjusted to make it suitable for different tracks.

[0010] Preferably, it also includes a manual opening and closing mechanism for driving the clamp to clamp or loosen on the track, the manual opening and closing mechanism includes a positioning rod arranged at the upper end of the clamp and passing through the two clamps at both ends, one end of the positioning rod is slidably matched with one of the clamps, and the other end is connected to the other clamp and constitutes a rotation limit for the positioning rod, and also includes a positioning sleeve with one end that can be against the clamp and the other end extending out of the outer shell, a positioning nut threadedly connected to the outer surface of the positioning rod is provided in the positioning sleeve, the end of the positioning rod passes through the positioning nut and extends into the positioning sleeve, and the positioning nut can slide axially relative to the positioning sleeve and be circumferentially limited. The setting of the manual opening and closing mechanism can realize that the track clamp can still be opened when the hydraulic system fails.

[0011] Preferably, a positioning sleeve support mechanism is installed on the outer shell, and the positioning sleeve support mechanism includes a support seat fixed on the outer surface of the outer shell, and two support clamps that can move toward or away from each other are arranged in the support seat, and semi-circular grooves are arranged on the opposite sides of the two support clamps, and the two support clamps support the positioning sleeve through the two semi-circular grooves. The two support clamps support the positioning sleeve, which can make the positioning sleeve more stable during rotation.

[0012] Preferably, a threaded rod is provided in the support seat, one end of the two support clamps are both threadedly connected to the threaded rod, and the two support clamps can move to a state of completely clamping the positioning sleeve. The two support clamps clamp the positioning sleeve to prevent the positioning sleeve from driving the clamp to move, and can also prevent the positioning sleeve from detaching from the positioning rod.

[0013] Preferably, the outer shell is provided with a calibration port (610) for the positioning sleeve to extend out, and the outer surface of the positioning sleeve is provided with scale lines along the axial direction of the positioning sleeve. The setting of the scale lines can clearly determine whether the clamp is in a state of completely disengaging from or completely clamping the track.

[0014] Preferably, the end of the positioning sleeve extending out of the outer shell is provided with a rotating handle for rotating the positioning sleeve. The provision of the rotating handle can make the operation of the positioning sleeve more convenient and flexible.

[0015] The present invention has significant technical effects due to the adoption of the above technical solution: The present invention provides an outer shell cover outside the track clamp, which can effectively protect the track clamp in an open air environment, thereby ensuring its stable and flexible operation, and effectively reducing the construction safety risks caused by the fact that the clamping block on the clamp cannot completely clamp the track or is completely detached from the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the working state of the present invention.

[0017] Figure 2 It is a partial structural schematic diagram of the present invention.

[0018] Figure 3 yes Figure 2 Schematic diagram of the structure of the middle rail clamp body.

[0019] Figure 4 yes Figure 3 Schematic diagram of the installation of the middle clamp position calibration mechanism and the manual opening and closing mechanism on the clamp.

[0020] Figure 5 yes Figure 2 Schematic diagram of the structure of the middle support seat. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Example 1 A gantry crane windproof rail clamp, such as Figure 1-Figure 5 As shown, it includes a traveling seat 1 capable of traveling on a track, a control cabinet 2 and a track clamp body 3 are installed on the traveling seat 1, and the track clamp body 3 includes two clamps 301 arranged opposite to each other and a return spring 302 and a hydraulic cylinder 303 for respectively driving the clamps 301 to clamp and release on the track.

[0023] Specifically, in this embodiment, the hydraulic cylinder 303 is transversely installed on the upper ends of the two clamps 301 , and the clamping plate is arranged on the lower ends of the clamps 301 .

[0024] The main function of the hydraulic rod is to pull the upper ends of the two clamps 301 inward, and then realize the outward movement of the lower ends of the two clamps 301 to make them detach from the track; the middle parts of the two clamps 301 are connected with a connecting rod 501 mechanism for pushing or pulling back the upper ends of the clamps 301, and the reset spring 302 is longitudinally arranged below the connecting rod 501 mechanism and is used to push the connecting rod 501 mechanism upward, so that the connecting rod 501 mechanism pushes the two clamps 301 outward, and then realizes the clamping plate is clamped inward on the inner side of the track.

[0025] In addition, the traveling seat 1 is provided with traveling rollers for traveling on the track, and the control cabinet 2 is used to control the interlocking of the rail clamp and the traveling mechanism, that is, the traveling circuit can be connected only after the clamp 301 of the rail clamp is completely separated from the track and opened.

[0026] The present embodiment also includes an outer shell cover 4 which is arranged on the outside of the track clamp body 3 and the bottom of which is connected to the traveling seat 1. The outer shell cover 4 includes a left shell 401 and a right shell 402 which are both U-shaped plates and relatively spliced, and also includes a cover body 403 arranged on the left shell 401 and the right shell 402. One end of the cover body 403 is hinged on the left shell 401 or the right shell 402, and the other end is buckled with the right shell 402 or the left shell 401. A pipe hole 404 for the pipeline to pass through is provided on the top of the end face of the outer shell cover 4 facing the control cabinet 2.

[0027] The outer shell cover 4 allows the rail clamp body 3 to be effectively protected in an open-air environment, thereby ensuring the service life or movement flexibility of the hydraulic system, various connecting motion joints, the return spring 302, etc., and effectively reducing the construction safety risk caused by the clamp block on the clamp 301 being unable to fully clamp the track or completely detaching from the track. In addition, the modular assembly design of the outer shell cover 4 can achieve its flexible installation on the walking seat 1 without any interference with the movement of the rail clamp body 3.

[0028] In order to further ensure that the clamp 301 of the track clamp can move only after being completely detached from the track and can completely clamp the track in the non-moving state, a calibration observation port 405 and a clamp position calibration mechanism 5 installed at the calibration observation port 405 are provided on the outer shell cover 4, which can enable construction personnel to intuitively judge whether the clamp is completely detached from or completely clamped the track.

[0029] The specific plan is as follows: The clamp position calibration mechanism 5 includes a connecting rod 501 with one end hinged at the middle of the clamp 301 and the other end extending out of the calibration observation port 405. A clamping calibration plate 502 and a loosening calibration plate 503 are installed on the connecting rod 501. A sliding plate 504 is also provided on the connecting rod 501 between the clamping calibration plate 502 and the loosening calibration plate 503. The connecting rod 501 can slide in the sliding plate 504. When the clamping calibration plate 502 moves to a position against the sliding plate 504, the clamp 301 is in a fully clamped state on the track. When the loosening calibration plate 503 moves to a position against the sliding plate 504, the clamp 301 is in a completely disengaged state on the track.

[0030] Among them, the outer shell cover 4 also includes a sliding plate mounting mechanism, which includes two hinged seats 505 respectively arranged on both sides of the calibration observation port 405. The two hinged seats 505 can slide in the vertical direction on the outer shell cover 4. A hinged rod 506 is respectively arranged on the two hinged seats 505, and the sliding plate 504 is installed between the two hinged rods 506.

[0031] A vertically arranged slide groove 507 is respectively provided on the outer shell cover 4 and on both sides of the calibration observation port 405 . The hinge seat 505 is provided with a slide rod 508 which passes through the slide groove 507 horizontally and can slide in the slide groove 507 , and a limit plate 509 which limits the axial position of the slide rod 508 .

[0032] In actual construction, since the clamp is located at the bottom of the track clamp and needs to extend into the track and clamp on the inner wall of the track, even if the outer shell cover 4 is not provided, it is inconvenient for construction workers to visually see whether the clamp is completely clamping the track or completely detached from the track. Especially when a hydraulic failure occurs or the track is uneven, it is even more difficult to ensure that the clamp is completely clamping the track or completely detached from the track.

[0033] The clamp position calibration mechanism 5 provided in the present embodiment can intuitively judge whether the clamp 301 is in a fully clamped or fully disengaged state by observing at the calibration observation port 405 whether the clamping calibration plate 502 or the loosening calibration plate 503 abuts against the sliding plate 504, that is, when the clamping calibration plate 502 moves to a position abutting against the sliding plate 504, the clamp 301 is in a fully clamped state on the track, and when the loosening calibration plate 503 moves to a position abutting against the sliding plate 504, the clamp 301 is in a fully disengaged state on the track.

[0034] During operation, when the clamp 301 is opened, the connecting rod 501 thereon will be driven to extend outward, and during the extension of the connecting rod 501, the loosening calibration plate 503 thereon will be driven to move toward the sliding plate 504, until the loosening calibration plate 503 abuts against the sliding plate 504, indicating that the clamp 301 is fully opened; conversely, under the action of the clamp 301, the connecting rod 501 is driven to move inward, so that the clamping calibration plate 502 thereon abuts against the sliding plate 504, indicating that the clamp 301 is fully clamped.

[0035] In order to ensure the accuracy of the movement stroke of the connecting rod 501 and enable it to be adjusted to a precise calibration position, an external thread is provided on the outer surface of the connecting rod 501, and the clamping calibration plate 502 and the loosening calibration plate 503 are both threadedly connected to the connecting rod 501, so that the positions of the clamping calibration plate 502 and the loosening calibration plate 503 on the connecting rod 501 can be debugged according to the actual position during work, so that it can be accurately determined whether the clamping block is fully clamped or fully loosened, and the track clamp can be suitable for different tracks.

[0036] This embodiment also includes a manual opening and closing mechanism 6 for driving the clamp 301 to clamp or loosen the rail, which can be used when the hydraulic system fails or when there is a shortage of hydraulic oil to ensure the normal operation of the rail clamp.

[0037] In order to ensure the smooth operation of the manual opening and closing mechanism 6, when setting the hydraulic pump, the two ends of the hydraulic pump can be detachably connected to the clamp 301. For example, the pin shaft at the connection can be detachably fixed on the clamp 301. When the hydraulic pump fails, the hydraulic pump can be removed from the clamp 301, which can facilitate maintenance and prevent it from affecting the operation of the manual opening and closing mechanism 6.

[0038] The manual opening and closing mechanism 6 includes a positioning rod 601 which is arranged at the upper end of the clamp 301 and has two ends passing through the two clamps 301 respectively. One end of the positioning rod 601 is slidably matched with one of the clamps 301, and the other end is connected to the other clamp 301 and constitutes a rotation limit for the positioning rod 601. Specifically, the end of the positioning rod 601 is fixed on a pin shaft, and the pin shaft is hinged on the clamp 301, so as to prevent the positioning rod 601 from rotating. It also includes a positioning sleeve 602 with one end capable of resting on the clamp 301 and the other end extending out of the outer shell cover 4. A positioning nut 603 threadedly connected to the outer surface of the positioning rod 601 is provided in the positioning sleeve 602. The end of the positioning rod 601 passes through the positioning nut 603 and extends into the positioning sleeve 602. The positioning nut 603 can slide axially relative to the positioning sleeve 602 and be limited circumferentially.

[0039] Among them, the end of the positioning sleeve 602 extending out of the outer shell cover 4 is provided with a rotating handle 609 for rotating the positioning sleeve 602. During operation, the rotating handle 609 is manually rotated to make the positioning sleeve 602 drive the positioning nut 603 therein to rotate. During the rotation of the positioning nut 603, since the positioning rod 601 cannot rotate, the positioning rod 601 can achieve axial movement relative to the positioning nut 603. At this time, the positioning sleeve 602 can move axially relative to the positioning rod 601, and then push the clamp 301 to retract inward, thereby realizing the opening of the lower clamping block of the clamp 301; conversely, as the positioning sleeve 602 moves outward, under the action of the reset spring 302, the upper end of the clamp 301 opens outward and the lower end clamps the track.

[0040] A positioning sleeve support mechanism is installed on the outer shell cover 4, and the positioning sleeve support mechanism includes a support seat 604 fixed on the outer surface of the outer shell cover 4, and two support clamps 605 that can move toward or away from each other are arranged in the support seat 604, and semi-arc grooves 606 are arranged on the opposite sides of the two support clamps 605. The two support clamps 605 support the positioning sleeve 602 through the two semi-arc grooves 606.

[0041] A threaded rod 607 is disposed in the support seat 604 , and one end of two support clamps 605 are both threadedly connected to the threaded rod 607 . The two support clamps 605 can move to a state of completely clamping the positioning sleeve 602 .

[0042] During the process of driving the clamp 301, in order to ensure the stable operation of the positioning sleeve 602, the two supporting clamps 605 can be moved relative to each other so that the semi-circular arc groove 606 and the positioning sleeve 602 form a sliding fit. At this time, the positioning sleeve 602 can still rotate and be supported at the same time, ensuring the stable operation of the positioning sleeve 602.

[0043] When the positioning sleeve 602 is rotated to the right position, the positioning sleeve 602 does not need to be rotated further, and the two support clips 605 can be clamped against the positioning sleeve 602. At this time, the positioning sleeve 602 will no longer drive the clamp 301 to move, and it can also prevent the positioning sleeve 602 from being separated from the positioning rod 601, and it is no longer necessary to store it in other places to prevent it from being lost. It can also further reduce the time of finding tools to operate the manual opening and closing structure, and can be operated quickly in an emergency.

[0044] In addition, in order to further ensure that the clamp 301 can completely detach from or completely clamp the track when the clamp 301 is manually operated, a calibration port (610) for the positioning sleeve 602 to extend is provided on the outer shell cover 4, and scale lines 608 are provided on the outer surface of the positioning sleeve 602 along the axial direction of the positioning sleeve 602. Based on the scale lines 608 on the positioning sleeve 602, the position of the positioning sleeve 602 relative to the exit of the calibration port (610) when the clamp 301 completely clamps the track and completely detaches from the track is recorded in advance. Based on the recorded scale positions, it is possible to accurately determine whether the clamp 301 is completely detached from or completely clamped on the track in different track sections, thereby providing position calibration of the clamp 301 when it is manually opened and closed, thereby ensuring the safe operation of the track clamp.

[0045] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on one or several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0046] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the patent of the present invention.

Claims

1. A gantry crane windproof rail clamp, comprising a traveling seat (1) capable of traveling on a rail, a control cabinet (2) and a rail clamp body (3) being mounted on the traveling seat (1), the rail clamp body (3) comprising two clamps (301) arranged opposite to each other and a return spring (302) and a hydraulic cylinder (303) for respectively driving the clamps (301) to clamp and release on the rail, characterized in that: It also includes an outer shell cover (4) which is arranged outside the rail clamp body (3) and whose bottom is connected to the traveling seat (1). The outer shell cover (4) includes a left shell (401) and a right shell (402) which are both U-shaped plates and spliced ​​relative to each other, and also includes a cover body (403) arranged on the left shell (401) and the right shell (402). One end of the cover body (403) is hinged to the left shell (401) or the right shell (402), and the other end is buckled with the right shell (402) or the left shell (401). The top of the end surface of the outer shell cover (4) facing the control cabinet (2) is provided with a pipe hole (404) for the pipeline to pass through.

2. A gantry crane windproof rail clamp according to claim 1, characterized in that: The outer shell cover (4) is provided with a calibration observation port (405) and a clamp position calibration mechanism (5) installed at the calibration observation port (405). The clamp position calibration mechanism (5) comprises a connecting rod (501) with one end hinged to the middle of the clamp (301) and the other end extending out of the calibration observation port (405). A clamping calibration plate (502) and a loosening calibration plate (503) are installed on the connecting rod (501). A sliding plate (504) arranged between the clamping calibration plate (502) and the loosening calibration plate (503) is also provided on the connecting rod (501). The connecting rod (501) can slide in the sliding plate (504). When the clamping calibration plate (502) moves to a position where it abuts against the sliding plate (504), the clamp (301) is in a completely clamped state on the track. When the loosening calibration plate (503) moves to a position where it abuts against the sliding plate (504), the clamp (301) is in a completely disengaged state on the track.

3. A gantry crane windproof rail clamp according to claim 2, characterized in that: The outer shell cover (4) also includes a sliding plate mounting mechanism, which includes two hinged seats (505) respectively arranged on both sides of the calibration observation port (405), the two hinged seats (505) can slide on the outer shell cover (4) in a vertical direction, and the two hinged seats (505) are respectively provided with a hinged rod (506), and the sliding plate (504) is installed between the two hinged rods (506).

4. A gantry crane windproof rail clamp according to claim 3, characterized in that: A vertically arranged slide groove (507) is provided on the outer shell cover (4) and on both sides of the calibration observation port (405), and a slide rod (508) is provided on the hinge seat (505) so as to pass through the slide groove (507) horizontally and slide in the slide groove (507) and a limit plate (509) for axially limiting the slide rod (508).

5. The gantry crane windproof rail clamp according to claim 2, characterized in that: An external thread is provided on the outer surface of the connecting rod (501), and the clamping calibration plate (502) and the loosening calibration plate (503) are both threadedly connected to the connecting rod (501).

6. The gantry crane windproof rail clamp according to claim 1, characterized in that: The manual opening and closing mechanism (6) is used to drive the clamp (301) to clamp or release on the track. The manual opening and closing mechanism (6) includes a positioning rod (601) which is arranged on the upper end of the clamp (301) and has two ends passing through the two clamps (301) respectively. One end of the positioning rod (601) is slidably matched with one of the clamps (301), and the other end is connected to the other clamp (301) and constitutes a rotation limit for the positioning rod (601). The manual opening and closing mechanism (6) also includes a positioning sleeve (602) which has one end capable of abutting against the clamp (301) and the other end extending out of the outer shell cover (4). A positioning nut (603) which is threadedly connected to the outer surface of the positioning rod (601) is arranged in the positioning sleeve (602). The end of the positioning rod (601) passes through the positioning nut (603) and extends into the positioning sleeve (602). The positioning nut (603) can slide axially relative to the positioning sleeve (602) and is circumferentially limited.

7. The gantry crane windproof rail clamp according to claim 6, characterized in that: A positioning sleeve support mechanism is mounted on the outer shell cover (4), the positioning sleeve support mechanism comprising a support seat (604) fixed on the outer surface of the outer shell cover (4), two support clamps (605) capable of moving towards or away from each other are arranged in the support seat (604), semi-circular arc grooves (606) are arranged on opposite sides of the two support clamps (605), and the two support clamps (605) support the positioning sleeve (602) via the two semi-circular arc grooves (606).

8. The gantry crane windproof rail clamp according to claim 7, characterized in that: A threaded rod (607) is provided in the support seat (604), and one end of the two support clamps (605) is threadedly connected to the threaded rod (607). The two support clamps (605) can move to a state of completely clamping the positioning sleeve (602).

9. The gantry crane windproof rail clamp according to claim 6, characterized in that: The outer shell (4) is provided with a calibration opening (610) for the positioning sleeve (602) to extend out, and a scale line (608) is provided on the outer surface of the positioning sleeve (602) along the axial direction of the positioning sleeve (602).

10. The gantry crane windproof rail clamp according to claim 7, characterized in that: The end of the positioning sleeve (602) extending out of the outer shell cover (4) is provided with a rotating handle (609) for rotating the positioning sleeve (602).

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