Hydraulic rail clamp

Abstract

The utility model relates to the technical field of railway construction equipment, in particular to a hydraulic rail clamp. A hydraulic rail clamp comprises a shell, an accessory connector, a clamping jaw and a hydraulic driving assembly. The accessory connector and the shell can be connected in a relatively rotating mode. The number of the clamping jaws is two, and one ends of the two clamping jaws are rotationally connected with the shell. The hydraulic driving assembly comprises a hydraulic cylinder and a hydraulic motor, the two ends of the hydraulic cylinder are hinged to the two clamping jaws respectively, and the hydraulic motor can drive the shell and the accessory connector to rotate relatively. According to the hydraulic rail clamp, rails can be efficiently clamped, the labor efficiency of workers is reduced, the construction position can be flexibly changed along with movement of an excavator, and the applicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of railway construction equipment, in particular to a hydraulic rail clamp. Background Art

[0002] During railway construction and maintenance, track fixing and adjustment are important steps to ensure safe train operation. When adjusting the track, the track needs to be lifted and moved.

[0003] Currently, when moving rails, a rail clamp is usually used to fix the rails, and then the rail clamp is manually lifted using tools for construction. This method of moving rails is inefficient and requires a lot of manual labor.

[0004] In order to solve the above problems, the present application provides a hydraulic rail clamp. Utility Model Content

[0005] Based on the above situation, the main purpose of the present invention is to provide a hydraulic rail clamp to solve the problem that the current method of moving rails is to manually lift the cabinet clamp using tools, which is inefficient and labor-intensive.

[0006] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0007] A hydraulic rail clamp comprises a housing, an attachment connector, a clamping jaw and a hydraulic drive assembly;

[0008] The attachment connector and the housing are connected in a relatively rotatable manner;

[0009] There are two clamping jaws, one end of each of which is rotatably connected to the housing;

[0010] The hydraulic drive assembly includes a hydraulic cylinder and a hydraulic motor. The two ends of the hydraulic cylinder are respectively hinged to the two clamping jaws. The hydraulic motor can drive the housing and the attachment connector to rotate relative to each other.

[0011] Preferably, the housing includes a mounting frame, a fixing plate and a connecting shaft, wherein the fixing plate is fixed to the lower side of the mounting frame, and the connecting shaft is fixed to the upper side of the mounting frame;

[0012] The attachment connector includes a fixing frame, a connecting plate and a rotating sleeve. The rotating sleeve is fixed to a side of the connecting plate close to the shell, and the connecting shaft is rotatably connected in the rotating sleeve.

[0013] Preferably, the clamping jaw includes a connecting arm, an active rod and a bending plate;

[0014] One end of the connecting arm is rotatably connected to the housing, and one end of the connecting arm away from the housing is fixed to the active rod, and both ends of the hydraulic cylinder are hinged to the two active rods respectively;

[0015] The bending plate includes a connecting portion and a clamping portion, and the active rod and the connecting portion are connectable.

[0016] Preferably, the clamping jaw further comprises a driven rod;

[0017] One end of the driven rod is hinged to the housing, and both ends of the connecting portion are rotatably connected to the active rod and the driven rod respectively.

[0018] Preferably, the driven rod includes a transverse plate, a vertical plate and a connecting plate, two vertical plates are provided, the two vertical plates are fixed to the transverse plate, the two vertical plates are hinged to the housing, and an avoidance groove is formed between the two vertical plates and the transverse plate, and the hydraulic cylinder can be located in the avoidance groove;

[0019] There are two connecting plates, and the connecting portion is arranged between the two connecting plates.

[0020] Preferably, a mounting groove is provided on one side of the two clamping parts close to each other, and a soft pad is fixed in the mounting groove.

[0021] Preferably, a slot is provided on one side of the two cushions close to each other, and the slot can abut against the rail head of the rail.

[0022] In summary, the present application includes at least one of the following beneficial technical effects.

[0023] During operation, the excavator moves to the work site, the hydraulic motor drives the clamping jaws to rotate, and the hydraulic cylinder drives the clamping jaws to swing. When the hydraulic cylinder's telescopic rod is extended, it can drive the two clamping jaws away from each other. When the hydraulic cylinder's telescopic rod is retracted, it can drive the two clamping jaws closer to clamp the rails. Compared with existing technologies, it can clamp rails more efficiently, reduce worker labor efficiency, and can flexibly change the construction position as the excavator moves, making it highly adaptable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model is a structural schematic diagram of a hydraulic rail clamp.

[0025] Figure 2 The utility model is a schematic diagram of the three-dimensional structure of the bending portion of the hydraulic rail clamp.

[0026] Figure 3 The utility model is a structural schematic diagram of a hydraulic motor of a hydraulic rail clamp.

[0027] Description of reference numerals:

[0028] 1. Housing; 11. Mounting frame; 12. Fixing plate; 13. Connecting shaft; 2. Attachment connector; 21. Fixing frame; 22. Connecting plate; 23. Rotating sleeve; 3. Clamping jaw; 31. Connecting arm; 32. Active rod; 33. Driven rod; 331. Horizontal plate; 332. Vertical plate; 333. Connecting plate; 334. Avoidance groove; 34. Bending plate; 341. Connecting part; 342. Clamping part; 3421. Mounting groove; 3422. Cushion; 3423. Card slot; 4. Hydraulic drive assembly; 41. Hydraulic cylinder; 42. Hydraulic motor. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with all the drawings and specific embodiments.

[0030] Reference Figure 1 The utility model provides a hydraulic rail clamp, comprising a housing 1, an attachment connector 2, a clamping jaw 3 and a hydraulic drive assembly 4. Two clamping jaws 3 are provided, one end of the two clamping jaws 3 is connected to the housing 1 in a relatively rotatable manner, and the two clamping jaws 3 can be rotated towards or away from each other to clamp or release the rail. The attachment connector 2 is mounted on the housing 1, and the attachment connector 2 can be connected to the telescopic arm of the excavator, so that the hydraulic rail clamp can be carried, moved and adjusted in position by the excavator. The hydraulic drive assembly 4 is a drive for adjusting the position of the housing 1 and the clamping jaw 3, and provides power through hydraulic pressure to enable the housing 1 and the clamping jaw 3 to move.

[0031] The shell 1 includes a mounting frame 11, a fixing plate 12 and a connecting shaft 13. There are two fixing plates 12, which are fixed to the lower side of the mounting frame 11. The clamping jaws 3 can be connected to the fixing plates 12. The connecting shaft 13 is fixed to the upper side of the mounting frame 11, and the connecting shaft 13 can be connected to the accessory connector 2 for relative rotation.

[0032] The attachment connector 2 includes a fixed frame 21, a connecting plate 22, and a rotating sleeve 23. The rotating sleeve 23 is fixed to the side of the connecting plate 22 close to the housing 1. The connecting shaft 13 is located inside the rotating sleeve 23, and the rotating sleeve 23 is rotatably connected to the connecting shaft 13, so that the attachment connector 2 can rotate relative to the housing 1. The fixed frame 21 is fixed to the side of the connecting plate 22 away from the rotating sleeve 23. The fixed frame 21 can be connected to the telescopic arm of the excavator. The structure of the fixed frame 21 is prior art, and its specific structure will not be repeated in this application. When in use, the attachment connector 2 can be connected to the telescopic arm of the excavator. As the excavator moves or the telescopic arm is adjusted and moved, the entire hydraulic rail clamp is driven to move. The rotating sleeve 23 and the connecting shaft 13 rotate relative to each other, which can rotate the entire hydraulic rail clamp relative to the telescopic arm of the excavator and adjust the position of the hydraulic rail clamp.

[0033] Reference Figure 1 and Figure 2The two clamping jaws 3 each include a connecting arm 31, an active rod 32, a driven rod 33, and a bent plate 34. The two connecting arms 31 are respectively located on both sides of the housing 1 and are rotatably connected to the housing 1, and the connecting arms 31 can be fixed to the active rod 32. Specifically, one end of the connecting arm 31 is hinged between the two fixed plates 12, the connecting arm 31 is located on one side of the fixed plate 12, and the end of the connecting arm 31 away from the fixed plate 12 is fixed to the active rod 32. The driving assembly can be connected to the active rod 32, and the connecting arm 31 can meet the swing of the active rod 32. One end of the driven rod 33 is hinged to the middle of the fixed plate 12, and the bent plate 34 includes a connecting portion 341 and a clamping portion 342. The clamping portion 342 is fixed to the connecting portion 341, and the clamping portion 342 and the connecting portion 341 are arranged at an obtuse angle. The two ends of the connecting portion 341 are rotatably connected to the active rod 32 and the driven rod 33 respectively, and the clamping portion 342 is located on the lower side of the driven rod 33. During operation, the drive assembly drives the active rods 32 of the two clamping jaws 3 to rotate toward or away from each other, thereby driving the two clamping portions 342 to move toward each other to clamp the rail or away from each other to release the rail. The driven rod 33 can be connected to the active rod 32 via the connecting portion 341, improving the rotational stability of the clamping jaws 3 and increasing the strength of the clamping jaws 3.

[0034] Reference Figure 3 The hydraulic drive assembly 4 includes a hydraulic cylinder 41 and a hydraulic motor 42. The hydraulic cylinder 41 is disposed below the housing 1. One end of the housing 1 of the hydraulic cylinder 41 is hinged to one clamping jaw 3, and one end of the telescopic rod of the hydraulic cylinder 41 is hinged to the other clamping jaw 3. Specifically, the two ends of the hydraulic cylinder 41 are respectively hinged to the side walls of the two active rods 32. As the telescopic rod of the hydraulic cylinder 41 moves, it can drive the two clamping jaws to rotate and clamp the rail.

[0035] The hydraulic motor 42 is fixed on a fixed plate 12. The rotation of the output shaft of the hydraulic motor 42 can drive the connecting shaft 13 and the rotating sleeve 23 to rotate relative to each other. The structure of the hydraulic motor 42 and the transmission structure of the hydraulic motor 42 driving the connecting shaft 13 to rotate are existing technologies and will not be repeated in this application.

[0036] As an embodiment, the driven rod 33 includes a transverse plate 331, a vertical plate 332, and a connecting plate 333. Two vertical plates 332 are provided, and the two vertical plates 332 are respectively fixed to the two sides of the transverse plate 331 and arranged perpendicular to the transverse plate 331. The two vertical plates 332 are respectively rotatably connected to the two fixed plates 12. The two vertical plates 332 and the transverse plate 331 form an avoidance groove 334, and the hydraulic cylinder 41 can be disposed in the avoidance groove 334. There are two connecting plates 333, and the two connecting plates 333 are fixed to the lower side of the transverse plate 331. The connecting portion 341 is disposed between the two connecting plates 333. The driven rod 33 adopts the above-mentioned structure to reasonably install the hydraulic cylinder 41, so that the hydraulic rail clamp has better integrity, and can also reduce the weight of the rail clamp and reduce energy loss.

[0037] As an embodiment, the two gripping portions 342 are each provided with a mounting groove 3421 on the side closest to each other, within which a cushion 3422 is secured. A latching groove 3423 is also provided on the side closest to each other, which can abut against one side of the rail head. The cushion 3422 protects the rail from damage during the gripping operation, while the latching groove 3423 ensures stable gripping of the rail.

[0038] The working principle of this utility model is as follows: during operation, the excavator moves to the work site, the hydraulic motor drives the clamping jaw 3 to rotate, and the hydraulic cylinder 41 drives the clamping jaw 3 to swing. When the telescopic rod of the hydraulic cylinder 41 is extended, it can drive the two clamping jaws 3 away from each other. When the telescopic rod of the hydraulic cylinder 41 is retracted, it can drive the two clamping jaws 3 closer to clamp the rails. Compared with existing technologies, it can clamp rails more efficiently, reduce worker labor efficiency, and can flexibly change the construction position as the excavator moves, which has strong applicability.

[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A hydraulic rail clamp, characterized in that: It comprises a housing (1), an attachment connector (2), a clamping jaw (3) and a hydraulic drive assembly (4); The attachment connector (2) and the housing (1) are connected in a relatively rotatable manner; Two clamping jaws (3) are provided, and one end of each of the clamping jaws (3) is rotatably connected to the housing (1); The hydraulic drive assembly (4) comprises a hydraulic cylinder (41) and a hydraulic motor (42), wherein both ends of the hydraulic cylinder (41) are respectively hinged to the two clamping jaws (3), and the hydraulic motor (42) can drive the housing (1) and the attachment connector (2) to rotate relative to each other.

2. A hydraulic rail clamp according to claim 1, characterized in that: The housing (1) comprises a mounting frame (11), a fixing plate (12) and a connecting shaft (13), wherein the fixing plate (12) is fixed to the lower side of the mounting frame (11), and the connecting shaft (13) is fixed to the upper side of the mounting frame (11); The attachment connector (2) comprises a fixing frame (21), a connecting plate (22) and a rotating sleeve (23); the rotating sleeve (23) is fixed to a side of the connecting plate (22) close to the housing (1); and the connecting shaft (13) is rotatably connected in the rotating sleeve (23).

3. The hydraulic rail clamp according to claim 1, characterized in that: The clamping claw (3) comprises a connecting arm (31), an active rod (32) and a bending plate (34); One end of the connecting arm (31) is rotatably connected to the housing (1), one end of the connecting arm (31) away from the housing (1) is fixed to the active rod (32), and both ends of the hydraulic cylinder (41) are respectively hinged to the two active rods (32); The bending plate (34) comprises a connecting portion (341) and a clamping portion (342), and the active rod (32) and the connecting portion (341) are connectable.

4. The hydraulic rail clamp according to claim 3, characterized in that: The clamping jaw (3) further includes a driven rod (33); One end of the driven rod (33) is hinged to the housing (1), and both ends of the connecting portion (341) are rotationally connected to the active rod (32) and the driven rod (33) respectively.

5. The hydraulic rail clamp according to claim 4, characterized in that: The driven rod (33) includes a transverse plate (331), a vertical plate (332) and a connecting plate (333), two vertical plates (332) are provided, the two vertical plates (332) are fixed to the transverse plate (331), the two vertical plates (332) are hinged to the housing (1), and an avoidance groove (334) is formed between the two vertical plates (332) and the transverse plate (331), and the hydraulic cylinder (41) can be located in the avoidance groove (334); Two connecting plates (333) are provided, and the connecting portion (341) is provided between the two connecting plates (333).

6. The hydraulic rail clamp according to claim 3, characterized in that: The two clamping portions (342) are each provided with a mounting groove (3421) on one side close to each other, and a soft pad (3422) is fixed in the mounting groove (3421).

7. The hydraulic rail clamp according to claim 6, characterized in that: A clamping groove (3423) is provided on one side of the two cushions (3422) close to each other, and the clamping groove (3423) can abut against the rail head of the rail.

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