Position-variable rope guide device

Abstract

The utility model provides a position-variable rope guide device, and belongs to the technical field of rescue vehicles. The technical problems that in the prior art, a steel wire rope in a rescue vehicle is prone to abrasion and inconvenient to take up are solved. According to the technical scheme, the position-variable rope guide device comprises two supports arranged on a corbel cross beam, a support is movably arranged on each support, fixing holes and long round holes are correspondingly formed in the two supports respectively, a lower rope pressing wheel shaft is arranged between the two fixing holes, an upper rope pressing wheel shaft is arranged between the two long round holes, and the upper rope pressing wheel shaft is connected with the lower rope pressing wheel shaft. The rope pressing device has the advantages that due to the fact that the lower rope pressing wheel, the upper rope pressing wheel and the two rope guiding wheels are arranged, a formed closed space is beneficial to reducing abrasion of a steel wire rope, and meanwhile due to the fact that a tension spring is arranged, the steel wire rope is not prone to falling off due to the fact that the steel wire rope is prone to falling off due to the fact that the tension spring is arranged. The steel wire rope can be pre-tightened and separated to a certain degree, and the phenomenon that the rope is disordered in the rope winding process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rescue vehicles, in particular to a position-variable guide rope device. Background Art

[0002] The winch wire rope installed on the chassis of the rescue vehicle is prone to wear and tear during the rope-retracting process. The rope is also prone to tangling during no-load rope-retracting, requiring manual intervention, which affects the rescue vehicle's withdrawal speed to a certain extent. Therefore, research on variable position guide rope devices is extremely important.

[0003] like Fig.10 As shown, the rope guide device involved in the prior art is that after the supporting device is deployed, when the winch installed on the chassis is used for towing and rescue operations, only two square tubes are installed as rope guide devices during the process of retracting and releasing the rope to protect the deployment cylinder. In actual practical use, the square tubes will cause wear to the wire rope. At the same time, when the rope is retracted without load, the wire rope has no pre-tightening force and needs to be manually dragged to apply a load. If the load generated by the dragging is too small, the rope will be tangled, and the wire rope part of the tangled rope needs to be released and reloaded to retract the rope.

[0004] Therefore, there is an urgent need for a variable position guide rope device to solve the above technical problems. Utility Model Content

[0005] The utility model aims to overcome the problems in the background technology and provide a variable position guide rope device which can reduce the wear on the steel wire rope and provide a pre-tightening force for the steel wire rope.

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[0007] Furthermore, the support is provided with a reference hole corresponding to each bracket, a horizontal hole is provided on a horizontal extension line of the reference hole, and a vertical hole is provided on a vertical extension line upward of the reference hole.

[0008] Furthermore, the connecting lines between the reference hole, the horizontal hole and the vertical hole form an isosceles right triangle. Such an arrangement can enable the guide rope device to be vertically flipped.

[0009] Furthermore, the two brackets are respectively provided with hole one and hole two, and hole two is located between hole one and the fixing hole.

[0010] Furthermore, the bracket and the support are movably connected through the cooperation of hole one, the reference hole and the pin shaft, and the hole two and the horizontal hole or the vertical hole are detachably connected through an insertion shaft.

[0011] Furthermore, a connecting groove is provided at the end of the upper pressure rope pulley shaft, a connecting hole is provided at the end of the lower pressure rope pulley shaft, and two ends of the tension spring are respectively installed in the connecting groove and the connecting hole.

[0012] Furthermore, bearings are installed between the lower pressure rope pulley shaft and the lower pressure rope pulley, between the upper pressure rope pulley shaft and the upper pressure rope pulley, and between the guide rope pulley shaft and the belt guide rope pulley.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The lower pressure rope wheel, the upper pressure rope wheel and the two guide rope wheels in the rope guide device form a relatively closed space, which limits the wire rope within a certain range, so that the deployment cylinder can be effectively protected from being worn by the wire rope. Since the lower pressure rope wheel, the upper pressure rope wheel and the two guide rope wheels are all rotatably installed through bearings, the friction force on the wire rope can be greatly reduced during use, thereby protecting the wire rope.

[0015] 2. The setting of the tension spring can make the upper pressure rope wheel press the wire rope tightly, so that the rope guide device has a certain pre-tightening function, avoiding the tangled rope phenomenon caused by the lack of pre-tightening of the wire rope during the rope collection process, and at the same time improving the efficiency of the wire rope collection operation.

[0016] 3. The position of the guide rope device can be changed by inserting the shaft into the second hole and the horizontal hole or the second hole and the vertical hole. The operation is convenient and the support device can be deployed and withdrawn. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the guide rope device.

[0019] Figure 2 Wire rope threading diagram Figure 1 .

[0020] Figure 3 Wire rope threading diagram Figure 2 .

[0021] Figure 4 A schematic diagram of the support structure.

[0022] Figure 5 A schematic diagram of the support structure.

[0023] Figure 6 It is a schematic diagram of the structure of the upper pressure rope pulley shaft and the lower pressure rope pulley shaft.

[0024] Figure 7 It is a schematic diagram of the structure of the upper pressure rope pulley, the lower pressure rope pulley and the two guide rope pulleys.

[0025] Figure 8 Schematic diagram of the initial state of the guide rope device.

[0026] Fig. 9 This is a schematic diagram of the operating position of the rope guide device.

[0027] Fig.10 It is a schematic diagram of the prior art operation.

[0028] Among them, the accompanying drawings are marked as: 1, support arm; 2, support; 3, bracket; 4, fixing hole; 5, oblong hole; 6, lower pressure rope pulley shaft; 7, upper pressure rope pulley shaft; 8, lower pressure rope pulley; 9, upper pressure rope pulley; 10, guide rope pulley shaft; 11, guide rope pulley; 12, tension spring; 13, reference hole; 14, horizontal hole; 15, vertical hole; 16, hole one; 17, hole two; 18, connecting groove; 19, connecting hole; 20, plug shaft; 21, wire rope. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] Example: Figure 1-9As shown, the present embodiment provides a variable position rope guiding device, including a support 2 arranged on a crossbeam of a supporting arm 1, wherein two brackets 2 are movably arranged on the support 2, and fixing holes 4 and oblong holes 5 are respectively arranged on the two brackets 3, a lower pressure rope pulley shaft 6 is installed between the two fixing holes 4, and an upper pressure rope pulley shaft 7 is installed between the two oblong holes 5. A bearing sleeve is provided on the outer side of the lower pressure rope pulley shaft 6 to install a lower pressure rope pulley 8, and an upper pressure rope pulley 9 is installed on the outer side of the upper pressure rope pulley shaft 7 through a bearing sleeve. A guide rope pulley shaft 10 is also provided on the same side of the two brackets 3, and guide rope pulleys 11 are respectively sleeved and installed on the outer sides of the two guide rope pulley shafts 10 through bearings. A closed space is formed between the two guide rope wheels 11 and the lower pressure rope pulley 8 and the upper pressure rope pulley 9. During use, the steel wire rope passes through the closed space, and a tension spring 12 is provided between the lower pressure rope pulley shaft 6 and the upper pressure rope pulley shaft 7. The tension spring 12 can pull the upper pressure rope pulley 9 to press the steel wire rope 21, thereby providing a pre-tightening force for the steel wire rope 21.

[0031] The support 2 is provided with a reference hole 13 corresponding to each bracket 3, a horizontal hole 14 is provided on the horizontal extension line of the reference hole 13, and a vertical hole 15 is provided on the vertical extension line of the reference hole 13 upward. The connecting line between the reference hole 13, the horizontal hole 14 and the vertical hole 15 forms an isosceles right triangle. Such an arrangement can facilitate the rope guide device to flip 90 degrees.

[0032] The two brackets 3 are respectively provided with hole one 16 and hole two 17. Hole two 17 is located between hole one 16 and the fixing hole 4. The bracket 3 and the support 2 are movably connected through the cooperation of hole one 16, reference hole 13 and pin shaft. Hole two 17 and the horizontal hole 14 or the vertical hole 15 are detachably connected through an insert shaft. The insert shaft 20 is selectively inserted into the horizontal hole 14 or the vertical hole 15 to put the rope guide device in an initial state or an operating state.

[0033] A connecting groove 18 is provided at the end of the upper pressure rope pulley shaft 6, and a connecting hole 19 is provided at the end of the lower pressure rope pulley shaft 7. Both ends of the tension spring 12 are respectively installed in the connecting groove 18 and the connecting hole 19. Bearings are installed between the lower pressure rope pulley shaft 6 and the lower pressure rope pulley 8, between the upper pressure rope pulley shaft 7 and the upper pressure rope pulley 9, and between the guide rope pulley shaft 10 and the guide rope pulley 11.

[0034] When the rescue vehicle is in a non-operating state, the supporting device is before being unfolded, and the guide rope device is in a folded state. At this time, the insertion shaft 20 is inserted into the second hole 17 and the horizontal hole 14;

[0035] When the rescue vehicle needs to operate, the supporting device is unfolded, and the rope guide device needs to be turned upward by 90 degrees first, that is, the plug shaft 20 is pulled out. After the entire rope guide device is turned 90 degrees, the plug shaft 20 is inserted into the second hole 17 and the vertical hole 15 to complete the fixation of the rope guide device; then the upper pressure rope wheel 9 is pulled upward, and the upper pressure rope wheel 9 drives the upper pressure rope wheel shaft 7 to move upward in the oblong hole 5, so that the gap between the upper pressure rope wheel 9 and the lower pressure rope wheel 8 becomes larger, and the tension spring 12 is in a stretched state. After the wire rope 21 passes through the gap between the upper pressure rope wheel 9 and the lower pressure rope wheel 8, the upper pressure rope wheel 9 is released. Due to the reset force of the tension spring 12, the upper pressure rope wheel 9 will move downward and press the wire rope 21, thereby applying a certain pre-tightening force to the wire rope 21; therefore, during the operation of the rescue vehicle, the wire rope 21 will be confined in a certain space on the one hand, and will not cause wear to the deployment cylinder. At the same time, since the upper pressure rope wheel 9, the lower pressure rope wheel 8 and the two guide rope wheels 11 are all rotatably arranged, the wear on the wire rope 21 will be greatly reduced during the operation, and the wire rope 21 will be protected. In addition, since the pre-tightening force is applied to the wire rope 21, the wire rope 21 will not be tangled when it is being retracted because the wire rope 21 has no pre-tightening force, which is beneficial to improving the efficiency of retracting the rope.

[0036] When the wire rope needs to be pulled out after the operation is completed, the same principle is used to first push the upper pressure rope wheel 9 upward, and then release the upper pressure rope wheel 9 after the wire rope is pulled out. Due to the tension of the tension spring 12, the upper pressure rope wheel 9 can be reset, and then the insertion shaft 20 is pulled out, the rope guide device is turned 90 degrees and folded, and then the insertion shaft 20 is inserted into the second hole 17 and the horizontal shaft 14, and then the fixation is completed.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A variable position guide rope device, characterized in that: The invention comprises a support (2) arranged on a crossbeam of a supporting arm (1), two brackets (3) being movably arranged on the support (2), and the two brackets (3) being respectively provided with fixing holes (4) and oblong holes (5), a lower pressure rope pulley shaft (6) being arranged between the two fixing holes (4), and an upper pressure rope pulley shaft (7) being arranged between the two oblong holes (5), and a lower pressure rope pulley (8) being rotatably sleeved on the outer side of the lower pressure rope pulley shaft (6), and the upper pressure rope pulley shaft (7) being rotatably sleeved on the outer side of the lower pressure rope pulley shaft (6). The movable sleeve is provided with an upper pressure rope pulley (9), and the same side of the two brackets (3) is also provided with a guide rope pulley shaft (10), and the outer sides of the two guide rope pulley shafts (10) are respectively provided with guide rope pulleys (11) for rotation. The two guide rope pulleys (11) and the lower pressure rope pulley (8) and the upper pressure rope pulley (9) form a closed space together, and the steel wire rope (21) can pass through the closed space. A tension spring (12) is provided between the lower pressure rope pulley shaft (6) and the upper pressure rope pulley shaft (7).

2. A variable position guide rope device according to claim 1, characterized in that: The support (2) is provided with a reference hole (13) corresponding to each bracket (3), a horizontal hole (14) is provided on a horizontal extension line of the reference hole (13), and a vertical hole (15) is provided on a vertical extension line upward of the reference hole (13).

3. A variable position guide rope device according to claim 2, characterized in that: The connecting lines between the reference hole (13), the horizontal hole (14) and the vertical hole (15) form an isosceles right triangle.

4. A variable position guide rope device according to claim 3, characterized in that: The two brackets (3) are respectively provided with a hole one (16) and a hole two (17), and the hole two (17) is located between the hole one (16) and the fixing hole (4).

5. A variable position guide rope device according to claim 4, characterized in that: The bracket (3) and the support (2) are movably connected by means of the matching installation of the hole 1 (16), the reference hole (13) and the pin shaft, and the hole 2 (17) and the horizontal hole (14) or the vertical hole (15) are detachably connected by means of the insertion shaft (20).

6. A variable position guide rope device according to claim 1, characterized in that: The end of the upper pressure rope wheel shaft (7) is provided with a connecting groove (18), the end of the lower pressure rope wheel shaft (6) is provided with a connecting hole (19), and the two ends of the tension spring (12) are respectively installed in the connecting groove (18) and the connecting hole (19).

7. The variable position guide rope device according to claim 1, characterized in that: Bearings are installed between the lower pressure rope wheel shaft (6) and the lower pressure rope wheel (8), between the upper pressure rope wheel shaft (7) and the upper pressure rope wheel (9), and between the guide rope wheel shaft (10) and the belt guide rope wheel (11).

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