A cable laying trenching apparatus

Abstract

The utility model discloses a kind of trenching equipment for cable laying, belong to trenching equipment field, including base support, the side of base support is equipped with angle compensation mechanism, the angle compensation mechanism includes driving gear, driven gear, worm wheel, universal joint, worm, the side of driving gear is equipped with driven gear, the center of driven gear is equipped with rotating shaft, the side of rotating shaft is equipped with universal joint, annular groove is set up on the surface of universal joint, worm wheel is installed in annular groove, the bottom of worm wheel is equipped with worm The one end of worm is equipped with hand wheel, locking mechanism is installed on the outside of worm, the one end of worm is equipped with hand wheel, locking mechanism is installed on the outside of worm;Through the cooperation of above each device, it is ensured that the center distance deviation of driving gear and driven gear is controlled within a certain range, the stability of chain transmission is improved, and the trenching depth error is reduced.

Description

Technical Field

[0001] This utility model relates to the field of trenching equipment technology, specifically a trenching device for cable laying. Background Technology

[0002] With economic development, the number of underground pipeline and power (optical) cable laying projects has surged, and the quality requirements have increased.

[0003] In traditional trenching equipment for cable laying, the angle adjustment of the chain drive mechanism often adopts a single-axis hinge connection or a fixed angle design. However, single-axis adjustment can only achieve angle deflection in a single plane and cannot compensate for the relative positional offset of the driving gear and driven gear caused by terrain undulations. This can easily cause unilateral wear or jamming of the chain. Furthermore, due to the lack of an effective angle compensation mechanism, the chain tension will fluctuate drastically with changes in the equipment's posture, resulting in unstable cutting force of the blades and even chain tooth loss.

[0004] Therefore, this utility model provides a trenching device for cable laying to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides a trenching device for cable laying, which aims to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a trenching device for cable laying, comprising a base support, an angle compensation mechanism installed on one side of the base support, the angle compensation mechanism comprising a driving gear, a driven gear, a worm gear, a universal joint, and a worm, a driven gear installed on one side of the driving gear, a rotating shaft installed at the center of the driven gear, a universal joint installed on one side of the rotating shaft, an annular groove formed on the surface of the universal joint, a worm gear installed in the annular groove, and a worm installed at the bottom of the worm gear.

[0009] As a preferred technical solution of this application, a handwheel is installed at one end of the worm gear, and a locking mechanism is installed on the outside of the worm gear.

[0010] As a preferred technical solution of this application, a fixing block is installed inside the base bracket, and a storage rack mechanism is installed inside the fixing block. The storage rack mechanism includes a storage rack body, a handle, an unlock button, and a slide rail. A handle and an unlock button are installed on the front side of the storage rack body, slide rails are connected to both sides of the storage rack body, and a buckle lock is installed at the bottom of the storage rack body.

[0011] As a preferred technical solution of this application, the fixing block has a rectangular groove inside, the two sides of the rectangular groove have slots, and a magnetic plate is installed on the top of the rectangular groove.

[0012] As a preferred technical solution of this application, the driving gear and the driven gear are connected by a tensioning device, and a chain drive mechanism is installed on the outside of the driving gear and the driven gear. A blade is installed on the chain link pin of the chain drive mechanism.

[0013] As a preferred technical solution of this application, the base bracket is internally equipped with a worm gear bracket and a universal joint bracket. A bearing seat is installed on the top of the worm gear bracket, and a worm gear is installed inside the bearing seat. The ear plate of the universal joint bracket has a through hole, and a pin is installed in the through hole. The universal joint is connected to the universal joint bracket through the pin.

[0014] As a preferred technical solution of this application, the driving gear and the driven gear are the same size, and the worm gear and the worm are tightly meshed.

[0015] (III) Beneficial Effects

[0016] The installed angle compensation mechanism enables ±15° axial rotation around the driven gear's rotation axis and compensation for minor spatial offsets, ensuring that the center distance deviation between the driving gear and the driven gear is controlled within a certain range, thus improving the smoothness of the chain drive and reducing the error in the groove depth.

[0017] Worm gear drives have self-locking characteristics. With the double locking of the locking mechanism, they can maintain the angular position under vibration conditions and can be linked with the tensioning device. When the angle of the driven gear is adjusted, the spring automatically compensates for the change in chain length, so that the tension is stabilized within a certain range, the fluctuation of the cutting force of the blade is reduced, and the service life of the chain is extended. Attached Figure Description

[0018] Figure 1 A schematic diagram of a trenching device for cable laying;

[0019] Figure 2 This is a schematic diagram of the angle compensation mechanism in a trenching device for cable laying.

[0020] Figure 3 A schematic diagram of a storage rack mechanism in a trenching device for cable laying;

[0021] Figure 4 This is an enlarged structural view of an angle compensation mechanism in a trenching device for cable laying.

[0022] Figure 5 This is an enlarged view of the storage rack mechanism in a trenching device for cable laying.

[0023] In the picture:

[0024] 1. Base bracket; 2. Worm gear bracket; 3. Universal joint bracket; 4. Fixing block; 5. Angle compensation mechanism; 501. Driving gear; 502. Driven gear; 503. Worm wheel; 504. Universal joint; 505. Worm; 506. Handwheel; 507. Locking mechanism; 6. Chain drive mechanism; 7. Blade; 8. Storage rack mechanism; 801. Storage rack body; 802. Handle; 803. Unlock button; 804. Slide rail; 805. Snap lock; 806. Slot; 807. Magnetic plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a trenching device for cable laying, including an angle compensation mechanism 5 and a storage rack mechanism 8. The base support 1 is made of channel steel welded into a rectangular frame, and the bottom is fixed to the main unit of the equipment by expansion bolts. Two parallel vertical plates are welded on the inner side of the base support 1 for installing fixing blocks 4. The fixing blocks 4 are made of cast iron and are connected to the vertical plates by bolts.

[0027] Both the driving gear 501 and the driven gear 502 are spur gears, connected to their respective rotating shafts via a flat key. The rotating shaft of the driving gear 501 is fixed to the left side of the base bracket 1 via a bearing seat. The rotating shaft of the driven gear 502 is installed in the top bearing hole of the universal joint bracket 3. The driving gear 501 and the driven gear 502 are surrounded by a chain drive mechanism 6. The blades 7 are fixed to the chain link pins by bolts. The blades 7 are spaced at a fixed distance and the cutting edges are inclined at 45° towards the transmission direction. The tensioning device is installed at the bottom of the sliding base of the driven gear 502 to ensure that the chain tension is maintained within a certain range.

[0028] Universal joint 504 is a cross-shaft type, model SWC100. Its input end is connected to the rotating shaft end of driven gear 502 via a flange. The output end has an annular groove machined on its outer circle. The inner hole of worm gear 503 and the annular groove of universal joint 504 are transition fit and are circumferentially fixed by set screws. The screw ends are embedded in the bottom of the annular groove. Worm 505 matches worm gear 503 and is tightly meshed with worm gear 503. Worm 505 is mounted on worm bracket 2 via two bearing seats. Worm bracket 2 is a rectangular steel plate welded structure and is fixed to the inner side of base bracket 1 by bolts. One end of worm 505 is connected to handwheel 506 via a flexible coupling. The surface of handwheel 506 has anti-slip texture. The other end is equipped with locking mechanism 507. Locking mechanism 507 includes an eccentric wheel, a return spring and a clamping block. When locked, the clamping block contacts the surface of the worm shaft.

[0029] The main body 801 of the storage rack is a drawer structure formed by bending steel plate. The two sides are connected to the rectangular groove in the fixing block 4 through the slide rail 804. The handle 802 and the unlocking button 803 are fixed to the front of the main body 801 by bolts. The unlocking button 803 has a spring reset function. The bottom is welded with a buckle lock 805. The top of the rectangular groove of the fixing block 4 is attached with a magnetic plate 807, which corresponds to the iron plate on the top of the main body 801 of the storage rack, so as to realize auxiliary positioning when closed.

[0030] Working principle: When the operator turns the handwheel 506, the torque is transmitted to the worm 505 through the flexible coupling. The worm 505, through its tight meshing with the worm wheel 503, converts its horizontal rotational motion into the vertical rotational motion of the worm wheel 503. The rotation of the worm wheel directly drives the universal joint 504 to rotate synchronously. The universal joint 504 adopts a cross-shaft structure. Its input end is rigidly connected to the rotational shaft of the driven gear 502. When the output end rotates with the worm wheel 503, it can achieve angle compensation in two directions at the same time through the spatial swing characteristics of the cross shaft. The rotational shaft of the driven gear 502 is installed in the top bearing hole of the universal joint bracket 3. When the universal joint 504 transmits torque, the driven gear 502 swings around its own rotational shaft, which in turn drives the blade 7 to change its soil entry angle through the chain transmission mechanism 6.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A trenching device for cable laying, comprising a base support (1), characterized in that: An angle compensation mechanism (5) is installed on one side of the base support (1); The angle compensation mechanism (5) includes a drive gear (501), a driven gear (502), a worm gear (503), a universal joint (504), and a worm (505). The driven gear (502) is installed on one side of the drive gear (501), and a rotating shaft is installed at the center of the driven gear (502). A universal joint (504) is installed on one side of the rotating shaft. An annular groove is opened on the surface of the universal joint (504), and a worm gear (503) is installed in the annular groove. A worm (505) is installed at the bottom of the worm gear (503).

2. The trenching equipment for cable laying according to claim 1, characterized in that: A handwheel (506) is installed at one end of the worm (505), and a locking mechanism (507) is installed on the outside of the worm (505).

3. The trenching equipment for cable laying according to claim 1, characterized in that: The base bracket (1) has a fixing block (4) installed inside, and the fixing block (4) has a storage rack mechanism (8) installed inside. The storage rack mechanism (8) includes a storage rack body (801), a handle (802), an unlock button (803), and a slide rail (804). The front side of the storage rack body (801) is equipped with a handle (802) and an unlock button (803). The two sides of the storage rack body (801) are connected to slide rails (804). The bottom of the storage rack body (801) is equipped with a buckle lock (805).

4. The trenching equipment for cable laying according to claim 3, characterized in that: The fixed block (4) has a rectangular groove inside, and slots (806) are provided on both sides of the rectangular groove. A magnetic plate (807) is installed on the top of the rectangular groove.

5. The trenching equipment for cable laying according to claim 1, characterized in that: The driving gear (501) and the driven gear (502) are connected by a tensioning device. A chain drive mechanism (6) is installed on the outside of the driving gear (501) and the driven gear (502). A blade (7) is installed on the chain link pin of the chain drive mechanism (6).

6. The trenching equipment for cable laying according to claim 1, characterized in that: The base bracket (1) is equipped with a worm gear bracket (2) and a universal joint bracket (3). The top of the worm gear bracket (2) is equipped with a bearing seat, and the worm gear (505) is installed inside the bearing seat. The ear plate of the universal joint bracket (3) has a through hole, and a pin is installed in the through hole. The universal joint (504) is connected to the universal joint bracket (3) through the pin.

7. The trenching equipment for cable laying according to claim 1, characterized in that: The driving gear (501) and the driven gear (502) are the same size, and the worm gear (503) and the worm (505) are tightly meshed.

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