Safety steel wire rope anti-falling device for inclined shaft trolley

Abstract

The safety steel wire rope anti-falling device for the inclined shaft trolley comprises a traction lifting lug and two rope clamping assemblies which are arranged on a pulling and lifting beam, a traction rod is arranged on the pulling and lifting beam in a sliding and penetrating mode, the traction lifting lug is installed at the front end of the traction rod, and the rear end of the traction rod penetrates through the pulling and lifting beam and then is connected with a force transmission plate. A traction rod reset spring is arranged between the force transmission plate and the pulling and hoisting beam, the two sides of the force transmission plate are each provided with a shifting fork assembly, the rope clamping assembly comprises a rope clamping groove, a cover plate and two rope clamping wedges inserted into the rope clamping groove, and each shifting fork assembly comprises a shifting fork clamped on the corresponding rope clamping wedge and a shifting rod connected to the force transmission plate. The device is reasonable in structural design, when traction force disappears, the traction rod reset spring can drive the traction rod to reset under the action of elastic force, then the force transmission plate drives the shifting fork assembly to act, the rope clamping assembly clamps the safety steel wire rope, then the position of the trolley is locked, and the falling risk of the trolley in an inclined shaft can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tunnel construction technical field, concretely relates to a safe wire rope anti -fall device for inclined shaft trolley. BACKGROUND

[0002] In long tunnel construction, in order to shorten the construction period, vertical shaft or inclined shaft is set to increase working face. For large slope inclined shaft, in the lining construction process of tunnel inclined shaft, in order to prevent lining trolley from sliding, need to implant reinforcing steel bar on primary support surface, adopt wire rope to pull lining trolley, this fixed mode still has the hidden danger such as reinforcing steel bar bending, wire rope fracture in the process of concrete pouring. When the traction force of lining trolley disappears unexpectedly, the trolley has the risk of falling in the inclined shaft, has very big security risk. Therefore, need to propose a safe wire rope anti -fall device for inclined shaft trolley to solve the above -mentioned problems. CONTENT OF UTILITY MODEL

[0003] The utility model provides a safe wire rope anti -fall device for inclined shaft trolley, and its structure design is reasonable, through the traction rod slidingly being provided on the pull beam, and the traction rod reset spring being arranged between the force transmission plate and the pull beam, when the traction force disappears, the traction rod reset spring can drive the traction rod to reset under the elastic force, and then the force transmission plate drives the fork assembly to act, so that the rope clamping assembly clamps the safety wire rope, and then the trolley position is locked, which can effectively reduce the falling risk of the trolley in the inclined shaft.

[0004] To solve the above technical problems, the utility model adopts the technical scheme: a safe wire rope anti -fall device for inclined shaft trolley, characterized by: including the traction lug on the pull beam arranged at the front end of lining trolley and two rope clamping assemblies respectively installed on two safety wire ropes, a traction rod is slidably provided on the pull beam, the traction lug is installed at the front end of the traction rod, the rear end of the traction rod is connected with the force transmission plate after passing through the pull beam, the traction rod reset spring is arranged between the force transmission plate and the pull beam, the traction rod reset spring is sleeved on the traction rod, the both sides of the force transmission plate are respectively provided with one fork assembly for controlling the rope clamping assembly to clamp and release the safety wire rope.

[0005] The rope clamping assembly includes a rope clamping groove arranged at the bottom of the safety wire rope, a cover plate arranged at the top of the rope clamping groove and two rope clamping wedges inserted into the rope clamping groove and used for clamping the safety wire rope, and the fork assembly includes a fork clamped on the rope clamping wedge and a lever connected to the force transmission plate and used for driving the fork.

[0006] The safe wire rope anti -fall device for inclined shaft trolley has the characteristics that the traction rod extends to the rear side of the force transmission plate, and a plurality of stiffening plates are arranged between the rear end of the traction rod and the force transmission plate.

[0007] The safety steel wire rope anti-falling device for the inclined shaft platform truck has the characteristics that the two sides of the force transmission plate are provided with a force transmission vertical shaft, the middle part of the shifting rod is rotatably installed at the front end of the lining platform truck, one end of the shifting rod away from the shifting fork is hingedly provided with a connecting rod, and the end of the connecting rod away from the shifting rod is rotatably connected with the upper end of the force transmission vertical shaft.

[0008] The safety steel wire rope anti-falling device for the inclined shaft platform truck has the characteristics that the front side of the shifting fork is connected with a guide shaft, the front end of the guide shaft is fixedly connected with a threaded rod, the cover plate is fixedly provided with a guide sleeve in sliding fit with the guide shaft, the front end of the threaded rod is provided with a check ring, and the check ring and the guide sleeve are provided with a rope clamping reset spring.

[0009] The safety steel wire rope anti-falling device for the inclined shaft platform truck has the characteristics that the front end of the threaded rod is provided with an adjusting nut for adjusting the position of the check ring.

[0010] The safety steel wire rope anti-falling device for the inclined shaft platform truck has the characteristics that the side part of each clamping wedge is provided with a notch for inserting the shifting fork.

[0011] The safety steel wire rope anti-falling device for the inclined shaft platform truck has the characteristics that the front end of the force transmission plate is provided with a force transmission sleeve, the force transmission sleeve is fixedly connected with the force transmission plate, the rear side of the pulling and lifting cross beam is fixedly provided with a guide cylinder for guiding the force transmission sleeve, the force transmission sleeve is arranged outside the traction rod reset spring, the guide cylinder is slidably arranged outside the force transmission sleeve, and the force transmission sleeve and the guide cylinder are coaxially arranged with the traction rod.

[0012] The safety steel wire rope anti-falling device for the inclined shaft platform truck has the characteristics that the clamping side of the clamping wedge is provided with an arc-shaped groove matched with the safety steel wire rope.

[0013] The safety steel wire rope anti-falling device for the inclined shaft platform truck has the characteristics that the middle part of the shifting rod is rotatably installed at the front end of the lining platform truck through a rotating force shaft, and the front end of the lining platform truck is fixedly provided with a rotating vertical shaft mounting plate for mounting the rotating force shaft.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The utility model discloses a structure design is reasonable, through making traction rod slidingly wearing in pulling and lifting cross beam, and setting up traction rod reset spring between force transmission plate and pulling and lifting cross beam, when traction disappears, traction rod reset spring can drive traction rod reset under the elastic force, and then make force transmission plate drive shifting fork subassembly action, make clamping rope subassembly clamping safety steel wire rope, and then to the platform truck position locking, can effectively reduce the falling risk of platform truck in the inclined shaft.

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the structure of this utility model.

[0018] Fig. 2 This is a schematic diagram of the connection structure of the traction lug, traction rod, and force transmission plate of this utility model.

[0019] Fig. 3 This is a schematic diagram of the rope clamping assembly of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1—Safety wire rope; 2—Traction lug; 3—Traction rod;

[0022] 4—Force transmission plate; 5—Traction rod return spring; 6—Hardening plate;

[0023] 7—Force transmission sleeve; 8—Guide cylinder; 9—Rope clamping groove;

[0024] 10—Cover plate; 11—Rope clamping wedge; 12—Shift fork;

[0025] 13—Lever; 14—Connecting rod; 15—Force transmission shaft;

[0026] 16—Guide shaft; 17—Threaded rod; 18—Guide sleeve;

[0027] 19—Rope clamping return spring; 20—Adjusting nut; 21—Rotating drive shaft;

[0028] 22—Lifting beam. Detailed Implementation

[0029] like Figs. 1 to 3 As shown, this utility model includes a traction lug 2 on a traction beam 22 at the front end of the lining trolley and two rope clamping assemblies respectively installed on two safety steel wire ropes 1. A traction rod 3 is slidably passed through the traction beam 22. The traction lug 2 is installed at the front end of the traction rod 3. The rear end of the traction rod 3 passes through the traction beam 22 and is connected to a force transmission plate 4. A traction rod return spring 5 is provided between the force transmission plate 4 and the traction beam 22. The traction rod return spring 5 is sleeved on the traction rod 3. A fork assembly for controlling the clamping assemblies to clamp and release the safety steel wire ropes 1 is provided on both sides of the force transmission plate 4.

[0030] The rope clamping assembly comprises a rope clamping groove 9 arranged at the bottom of the safety wire rope 1, a cover plate 10 arranged at the top of the rope clamping groove 9, and two rope clamping wedges 11 inserted into the rope clamping groove 9 and used for clamping the safety wire rope 1, and the yoke assembly comprises a yoke 12 clamped on the rope clamping wedge 11 and a yoke rod 13 connected to the transmission plate 4 and used for driving the yoke 12.

[0031] In actual use, the traction rod 3 is slid through the pull-in cross beam 22, and the traction rod reset spring 5 is arranged between the transmission plate 4 and the pull-in cross beam 22. When the traction force disappears, the traction rod reset spring 5 can drive the traction rod 3 to reset under the elastic force, so that the transmission plate 4 drives the yoke assembly to act, and the rope clamping assembly clamps the safety wire rope 1, thereby locking the position of the table car, and effectively reducing the falling risk of the table car in the inclined shaft.

[0032] It should be noted that by connecting the yoke rod 13 with the transmission plate 4, when the traction force disappears, the traction rod 3 drives the transmission plate 4 to act, so that the transmission plate 4 drives the yoke rod 13 to act, thereby controlling the rope clamping assembly to clamp or release the safety wire rope 1, which can effectively prevent the table car from slipping.

[0033] It should be noted that by inserting two rope clamping wedges 11 into the rope clamping groove 9 and inserting the yoke 12 into the two rope clamping wedges 11, when the yoke rod 13 acts, the yoke 12 can be driven to move, and the rope clamping wedge 11 is driven by the yoke 12 to slide into or out of the rope clamping groove 9, thereby achieving clamping or releasing of the safety wire rope 1, and the operation is convenient.

[0034] In specific implementation, the groove part on the rope clamping groove 9 is a wedge-shaped groove matched with the rope clamping wedge 11, the safety wire rope 1 is arranged between the cover plate 10 and the rope clamping groove 9, the cover plate 10 is connected with the rope clamping groove 9 through screws, the clamping side of the rope clamping wedge 11 is provided with an arc-shaped groove matched with the safety wire rope 1, the yoke 12 is a U-shaped plate, and the two sides of the yoke 12 are respectively inserted into the notches outside the two rope clamping wedges 11.

[0035] In the embodiment, the traction rod 3 extends to the rear side of the transmission plate 4, and a plurality of stiffening plates 6 are arranged between the rear end of the traction rod 3 and the transmission plate 4.

[0036] In actual use, the plurality of stiffening plates 6 are uniformly arranged along the circumference of the traction rod 3, and the stiffening plates 6 are perpendicular to the transmission plate 4.

[0037] In the embodiment, one transmission vertical shaft 15 is arranged on each side of the transmission plate 4, the middle part of the yoke rod 13 is rotatably installed at the front end of the lining table car, one connecting rod 14 is hinged to the end of the yoke rod 13 away from the yoke 12, and the end of the connecting rod 14 away from the yoke rod 13 is rotatably connected with the upper end of the transmission vertical shaft 15.

[0038] In actual implementation, the force transmission plate 4 is perpendicular to the traction rod 3, the force transmission vertical shaft 15 is perpendicular to the traction rod 3, the middle part of the shifting rod 13 is rotatably installed at the front end of the lining trolley through a rotating force shaft 21, the front end of the lining trolley is fixedly provided with a rotating vertical shaft fixing plate for fixing the rotating force shaft 21, and the middle part of the shifting rod 13 is rotatably installed at the upper end of the rotating force shaft 21.

[0039] In the embodiment, the front side of the shifting fork 12 is connected with a guide shaft 16, the front end of the guide shaft 16 is fixedly connected with a threaded rod 17, the cover plate 10 is fixedly provided with a guide sleeve 18 which is in sliding cooperation with the guide shaft 16, the front end of the threaded rod 17 is sleeved with a check ring, and the check ring is provided with a rope clamping reset spring 19 between the guide sleeve 18.

[0040] In actual implementation, the axial direction of the guide shaft 16 is parallel to the traction rod 3, the guide shaft 16 is slidingly inserted into the guide sleeve 18, and the threaded rod 17 is parallel to the traction rod 3.

[0041] It should be noted that a gap is provided between the end of the shifting rod 13 close to the shifting fork 12 and the guide shaft 16, so as to provide space for the rotation of the shifting rod 13.

[0042] In the embodiment, the front end of the threaded rod 17 is threadedly installed with an adjusting nut 20 for adjusting the position of the check ring.

[0043] In actual use, the number of the adjusting nuts 20 is two.

[0044] In the embodiment, the side part of each of the rope clamping chocks 11 is provided with a notch for inserting the shifting fork 12.

[0045] In actual use, the notch is provided at the outside of the end of the rope clamping chock 11 with larger size.

[0046] In the embodiment, the front end of the force transmission plate 4 is provided with a force transmission sleeve 7, the force transmission sleeve 7 is fixedly connected with the force transmission plate 4, the rear side of the pull-hanging cross beam 22 is fixedly provided with a guide cylinder 8 for guiding the force transmission sleeve 7, the force transmission sleeve 7 is sleeved outside the traction rod reset spring 5, the guide cylinder 8 is slidingly sleeved outside the force transmission sleeve 7, and the force transmission sleeve 7 and the guide cylinder 8 are coaxially arranged with the traction rod 3.

[0047] In actual use, the guide cylinder 8 is fixedly arranged at the rear side of the pull-hanging cross beam 22 through a rib plate.

[0048] In the embodiment, the clamping side of the rope clamping chock 11 is provided with an arc-shaped groove matched with the safety steel wire rope 1.

[0049] In actual use, the setting of the arc-shaped groove can effectively increase the contact area with the safety steel wire rope 1, so as to improve the clamping effect.

[0050] In the embodiment, the middle part of the shifting lever 13 is rotatably installed at the front end of the lining trolley through the rotating force shaft 21, and the front end of the lining trolley is fixedly provided with a rotating vertical shaft mounting plate for mounting the rotating force shaft 21.

[0051] In actual use, when the trolley is not pulled by the pulling system, the rear end of the pulling lug 2 is attached to the front end of the pulling cross beam 22, and there is a certain gap between the front end of the force transmission sleeve 7 and the rear end of the pulling cross beam 22 and between the rear end of the guide cylinder 8 and the front end of the force transmission plate 4, so that when the pulling lug 2 is connected with the pulling system and the trolley is pulled by the pulling system, the pulling system drives the pulling lug 2 and the pulling rod 3 to move forward synchronously; after the pulling force disappears unexpectedly, the pulling rod 3 moves backward to reset under the action of the pulling rod reset spring 5, the force transmission plate 4 fixed on the pulling rod 3 moves backward, the force transmission vertical shaft 15 on the force transmission plate 4 drives the shifting lever 13 to rotate through the connecting rod 14, the shifting lever 13 cancels the limiting of the shifting fork 12 after rotating, the two rope clamping wedges 11 are driven to move into the rope clamping groove 9 and clamp the safety steel wire rope 1 under the action of the rope clamping reset spring 19, so that the trolley is prevented from sliding and falling.

[0052] The above is only a preferred embodiment of the utility model, and does not limit the utility model, and any simple modification, change and equivalent structure change according to the technical essence of the utility model are still within the protection scope of the utility model technical scheme.

Claims

1. A safety wire rope anti-fall device for inclined shaft trolleys, characterized in that: It includes a traction lug (2) on the traction beam (22) at the front end of the lining trolley and two rope clamping assemblies respectively installed on two safety steel wire ropes (1). A traction rod (3) is slidably passed through the traction beam (22). The traction lug (2) is installed at the front end of the traction rod (3). The rear end of the traction rod (3) passes through the traction beam (22) and is connected to a force transmission plate (4). A traction rod return spring (5) is provided between the force transmission plate (4) and the traction beam (22). The traction rod return spring (5) is sleeved on the traction rod (3). A fork assembly for controlling the clamping assembly to clamp and release the safety steel wire rope (1) is provided on both sides of the force transmission plate (4). The rope clamping assembly includes a rope clamping groove (9) at the bottom of the safety wire rope (1), a cover plate (10) at the top of the rope clamping groove (9), and two rope clamping wedges (11) inserted into the rope clamping groove (9) for clamping the safety wire rope (1). The shift fork assembly includes a shift fork (12) locked on the rope clamping wedges (11) and a lever (13) connected to the force transmission plate (4) for moving the shift fork (12).

2. The safety wire rope anti-fall device for inclined shaft trolleys according to claim 1, characterized in that: The traction rod (3) extends to the rear side of the force transmission plate (4), and a plurality of stiffening plates (6) are provided between the rear end of the traction rod (3) and the force transmission plate (4).

3. A safety wire rope anti-fall device for an inclined shaft trolley according to claim 1, characterized in that: A force transmission vertical shaft (15) is provided on both sides of the force transmission plate (4). The middle part of the lever (13) is rotatably installed at the front end of the lining trolley. A connecting rod (14) is hinged to the end of the lever (13) away from the lever fork (12). The end of the connecting rod (14) away from the lever (13) is rotatably connected to the upper end of the force transmission vertical shaft (15).

4. A safety wire rope anti-fall device for an inclined shaft trolley according to claim 1, characterized in that: The front side of the shift fork (12) is connected to a guide shaft (16), and the front end of the guide shaft (16) is fixedly connected to a threaded rod (17). A guide sleeve (18) that slides with the guide shaft (16) is fixed on the cover plate (10). A retaining ring is sleeved on the front end of the threaded rod (17), and a rope clamping return spring (19) is provided between the retaining ring and the guide sleeve (18).

5. A safety wire rope anti-fall device for an inclined shaft trolley according to claim 4, characterized in that: The threaded rod (17) is threaded with an adjusting nut (20) for adjusting the position of the retaining ring.

6. A safety wire rope anti-fall device for an inclined shaft trolley according to claim 1, characterized in that: Each of the rope-clamping wedges (11) has a slot on its side for inserting the fork (12).

7. A safety wire rope anti-fall device for an inclined shaft trolley according to claim 1, characterized in that: The front end of the force transmission plate (4) is provided with a force transmission sleeve (7), which is fixedly connected to the force transmission plate (4). The rear side of the traction beam (22) is fixed with a guide cylinder (8) for guiding the force transmission sleeve (7). The force transmission sleeve (7) is sleeved outside the traction rod return spring (5), and the guide cylinder (8) is slidably sleeved outside the force transmission sleeve (7). The force transmission sleeve (7) and the guide cylinder (8) are both coaxially arranged with the traction rod (3).

8. A safety wire rope anti-fall device for an inclined shaft trolley according to claim 1, characterized in that: The clamping side of the rope clamping wedge (11) is provided with an arc-shaped groove that matches the safety wire rope (1).

9. A safety wire rope anti-fall device for an inclined shaft trolley according to claim 1, characterized in that: The middle part of the lever (13) is rotatably mounted on the front end of the lining trolley via a rotating power shaft (21), and the front end of the lining trolley is fixedly provided with a rotating vertical shaft mounting plate for mounting the rotating power shaft (21).

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