A trench excavation device for municipal engineering construction

Abstract

The present invention relates to the technical field of municipal trenching, and discloses a trenching device for municipal engineering construction, including a trenching machine, a driving structure for driving a trenching sprocket to rotate is arranged on the left side of the trenching machine; a counterweight water tank is fixedly arranged on the left side of the upper end of the trenching machine, a water guide pipe is penetrated through the lower end of the side of the counterweight water tank, and a heat exchange plate is fixedly arranged on the outside of the driving structure. The trenching device for municipal engineering construction can increase the counterweight of the trenching machine by adding a counterweight water tank, which makes it more convenient for the trenching machine to trench the ground, and spray cooling of the surrounding environment can be achieved through the spray plate and the fixed nozzle during trenching. When spraying, the cooling water passes through the driving structure in advance to achieve the purpose of cooling the driving structure. The fixed nozzle can be protected by rotating the protective sleeve to prevent the surrounding dust from adhering to the spray head when not in use and clogging the water outlet hole opened on the spray head.

Description

Technical Field

[0001] The invention relates to the technical field of municipal trenching, in particular to a trench excavation device for municipal engineering construction. Background Art

[0002] Municipal engineering is the infrastructure of our country, covering the construction of various public transportation facilities in urban construction. When laying municipal pipelines, trenchers are needed to dig trenches. During the operation of trenchers, the damage to the surface is small, which is beneficial to environmental protection. The trenches dug by trenchers have regular shapes and can be excavated on concrete and other surfaces.

[0003] At present, the patent with publication number CN110402644A discloses a chain trenching machine, including a traction mechanism, a trenching bracket is arranged at the rear of the traction mechanism, the trenching bracket is provided with a driving sprocket and a driven sprocket connected by a chain II transmission, a blade is arranged on the chain II, a tripod is arranged at the rear of the traction mechanism, one end of the connecting rod I and the connecting rod II are respectively rotatably connected to the tripod, the other end of the connecting rod I and the connecting rod II is rotatably connected to the trenching bracket, the tripod, the connecting rod I, the connecting rod II and the trenching bracket form a parallelogram connecting rod mechanism, and a motor is coaxially arranged at the rotating connection between the tripod and the connecting rod II; an engine and a gearbox are arranged on the traction mechanism, the engine and the gearbox are transmission-connected, the gearbox is transmission-connected with the driving sprocket, and the motor rotates to lower the trenching bracket to a suitable height. Since the tripod, the connecting rod I, the connecting rod II and the trenching bracket form a parallelogram connecting rod mechanism, the inclination angle is fixed when the trenching bracket is lowered to any height, which is conducive to the trenching work, and the trenching depth adjustment range is large. The engine provides power to the driving sprocket through the reduction gearbox, and the driving sprocket drives the meshed chain II to rotate, and then drives the blade on the chain II to perform trenching. Since the tripod, connecting rod I, connecting rod II and trenching bracket form a parallelogram connecting rod mechanism, the inclination angle of the trenching bracket is fixed when it is lowered to any height, and the appropriate inclination angle can be maintained, which is conducive to the trenching work. In addition, the trenching depth adjustment range is large, and it has strong adaptability to the construction environment.

[0004] However, the following problems still exist in the current use of trenching machines:

[0005] When the above-mentioned device digs trenches on the concrete floor, the trencher will generate large dust when breaking concrete, thereby polluting the surrounding air. The scattered concrete dust is easy to adhere to the construction workers and the surface of the device, and the construction workers will inhale a large amount of dust, which will burden and affect their lungs. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a trench excavation device for municipal engineering construction, which can reduce flying dust by adding a spraying device, and the spraying water can cool the driving device before spraying.

[0007] The present invention provides the following technical solutions: A trench excavation device for municipal engineering construction, comprising a trencher, a driving structure for driving a trenching sprocket to rotate is arranged on the left side of the trencher, a counterweight water tank is fixedly arranged on the left side of the upper end of the trencher, a water guide pipe is penetrated through the lower end of the side of the counterweight water tank, a heat exchange plate is fixedly arranged on the outside of the driving structure, and the water guide pipe is penetrated and fixed on the heat exchange plate, a water outlet pipe is penetrated and fixed on the upper end of the heat exchange plate, and a spray assembly is fixedly arranged on the right side of the water outlet pipe, a fixed rotating shaft is arranged on the spray assembly, a gear group is arranged on the upper end of the counterweight water tank, an adjustment assembly is arranged on the upper end of the gear group, and the adjustment assembly is connected to the fixed rotating shaft, and a protective sleeve is arranged on the outside of the spray assembly.

[0008] Furthermore, there are six heat exchange plates in total, and a cavity for water to pass through is provided inside the heat exchange plates, and the six heat exchange plates are interconnected by pipes. Through the above structure, the drive structure can be easily cooled by water through the heat exchange plates.

[0009] Furthermore, the spray assembly includes a spray plate, a fixed nozzle and a receiving plate, and the left side of the spray plate is connected to the water outlet pipe, the fixed nozzle is fixedly installed at the lower end of the spray plate, the receiving plate and the spray plate are connected to each other, and the receiving plate and the inner surface of the protective sleeve are fitted with each other. Through the above structure, it is convenient to achieve dust reduction around the trenching machine through the spray plate and the fixed nozzle.

[0010] Furthermore, the adjustment assembly includes a mounting plate and an additional plate, and the mounting plate is fixedly mounted on the gear set, the additional plate is fixedly mounted on the mounting plate, and the mounting plate is rotatably connected to the fixed rotating shaft via a bearing mounted on its upper end. Through the above structure, it is convenient to support the fixed rotating shaft without affecting the rotation of the fixed rotating shaft.

[0011] Furthermore, the adjustment assembly also includes a first telescopic rod, a driving ball and a connecting track, and the first telescopic rod is fixedly mounted on the lower end of the mounting plate, the driving ball is fixedly mounted on the lower end of the first telescopic rod, and the driving ball is arranged inside the connecting track. Through the above structure, it is easy to reduce the friction between the driving ball and the connecting track, which can effectively ensure the smooth rotation of the connecting track.

[0012] Furthermore, the outer surface of the driving ball is set to be smooth, a cylindrical groove is set at the upper end of the connecting track, and the driving ball is slidably connected to the connecting track through the groove opened on the connecting track, and the connecting track is fixedly connected to the fixed rotating shaft. Through the above structure, the spray plates connected to the fixed rotating shafts can be driven to rotate as the connecting track rotates.

[0013] Furthermore, the gear set is composed of two mutually meshing gears, and both gear sets are rotatably connected to the counterweight water tank via a rotating shaft. Through the above structure, the spray plate can be driven to rotate by the rotation of the gear set.

[0014] Furthermore, an electric motor is arranged on the left side of the spray plate, and the output end of the electric motor is connected to the driving gear through a rotating shaft, and the driving gear is meshed with the protective sleeve through a gear structure arranged on the left side of the protective sleeve. Through the above structure, the driving gear can be driven to rotate by the electric motor, that is, the protective sleeve can be driven to rotate as the driving gear rotates.

[0015] Furthermore, a second telescopic rod is fixedly provided on the upper end of the counterweight water tank, and a connecting rack is fixedly installed on the second telescopic rod, and the connecting rack is meshed with the gear set. Through the above structure, it is convenient to drive the connecting rack to rotate through the second telescopic rod, thereby driving the gear set to rotate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The trench excavation device for municipal engineering construction can increase the counterweight of the trencher by adding a counterweight water tank, making it easier for the trencher to trench the ground. The spray plate and the fixed nozzle can be used to spray and cool the surrounding environment while trenching. When spraying, the cooling water passes through the drive structure in advance to achieve the purpose of cooling the drive structure. When spraying, the spray position and the spray angle can be adjusted according to needs to effectively ensure the spraying effect. After spraying, the fixed nozzle can be protected by rotating the protective sleeve to prevent surrounding dust from adhering to the spray head and clogging the water outlet holes opened on the spray head when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the counterweight water tank of the present invention;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the trenching machine of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the heat exchange plate of the present invention;

[0021] Figure 4 Schematic diagram of the cross-sectional structure of the heat exchange plate of the present invention;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the spray plate of the present invention;

[0023] Figure 6 is a schematic cross-sectional structure diagram of a gear set of the present invention;

[0024] Figure 7 It is a schematic diagram of the cross-sectional structure of the protective sleeve of the present invention;

[0025] Figure 8 It is a schematic diagram of the cross-sectional structure of the regulating component of the present invention.

[0026] In the figure: 1. trencher; 2. drive structure; 3. counterweight water tank; 4. water guide pipe; 5. heat exchange plate; 6. water outlet pipe; 7. spray assembly; 701. spray plate; 702. fixed nozzle; 703. receiving plate; 8. fixed rotating shaft; 9. adjustment assembly; 901. mounting plate; 902. additional plate; 903. first telescopic rod; 904. driving ball; 905. connecting track; 10. gear set; 11. motor; 12. driving gear; 13. connecting rack; 14. second telescopic rod; 15. protective sleeve. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] See also Figure 1-Figure 8 The present invention provides a technical solution: a trench excavation device for municipal engineering construction, comprising a trenching machine 1, a driving structure 2 for driving a trenching sprocket to rotate is arranged on the left side of the trenching machine 1, a counterweight water tank 3 is fixedly arranged on the left side of the upper end of the trenching machine 1, a water guide pipe 4 is penetrated and arranged on the lower end of the side of the counterweight water tank 3, a heat exchange plate 5 is fixedly arranged on the outside of the driving structure 2, and the water guide pipe 4 is penetrated and fixed on the heat exchange plate 5, a water outlet pipe 6 is penetrated and fixed on the upper end of the heat exchange plate 5, and a spray assembly is fixedly arranged on the right side of the water outlet pipe 6 7; there are six heat exchange plates 5 in total, and all the heat exchange plates 5 are provided with cavities for water to pass through, and the six heat exchange plates 5 are interconnected by pipes; the spray assembly 7 includes a spray plate 701, a fixed nozzle 702 and a receiving plate 703, and the left side of the spray plate 701 is connected to the water outlet pipe 6, the fixed nozzle 702 is fixedly installed at the lower end of the spray plate 701, the receiving plate 703 is connected to the spray plate 701, and the receiving plate 703 is in contact with the inner surface of the protective sleeve 15.

[0029] When it is necessary to spray and reduce dust on the environment around the trenching, the spray water is added to the counterweight water tank 3 through the water inlet pipe arranged on the left side of the counterweight water tank 3 (the water in the counterweight water tank 3 can increase the deadweight of the trenching machine 1, thereby increasing the stability of the trenching machine 1 when trenching, and avoiding excessive movement or vibration of the trenching machine 1 when trenching and entering the soil), and then the water pump arranged on the outlet pipe 6 starts to work, so as to extract the water in the counterweight water tank 3, that is, the water in the counterweight water tank 3 enters the heat exchange plate 5 through the water guide pipe 4 (the heat exchange plate 5 is set to be made of aluminum or stainless steel with good thermal conductivity, and the heat exchange plate 5 is thin to facilitate heat transfer). At this time, the water in the heat exchange plate 5 begins to water-cool the drive structure 2 (the drive structure 2 is an engine that drives the trenching sprocket to rotate, and its temperature is relatively high when working). At this time, the water after heat exchange and heating enters the spray plate 701 through the outlet pipe 6, and then is sprayed through the fixed nozzle 702 to reduce dust on the surrounding environment.

[0030] The spray assembly 7 is provided with a fixed rotating shaft 8, and a gear set 10 is provided at the upper end of the counterweight water tank 3, an adjusting assembly 9 is provided at the upper end of the gear set 10, and the adjusting assembly 9 is connected to the fixed rotating shaft 8; the adjusting assembly 9 includes a mounting plate 901 and an additional plate 902, and the mounting plate 901 is fixedly mounted on the gear set 10, the additional plate 902 is fixedly mounted on the mounting plate 901, and the mounting plate 901 is rotatably connected to the fixed rotating shaft 8 through a bearing installed at its upper end; the adjusting assembly 9 also includes a first telescopic rod 903, a driving rod 904, a driving rod 905, a driving rod 906, a driving rod 907, a driving rod 908, a driving rod 909, a driving rod 910, a driving rod 911, a driving rod 912, a driving rod 913, a driving rod 914, a driving rod 915, a driving rod 916, a driving rod 917, a driving rod 918, a driving rod 919, a driving rod 920, a driving rod 921, a driving rod 922, a driving rod 923, a driving rod 924, a driving rod 925, a driving rod 926, a driving rod 927, a driving rod 928, a driving rod 929, a driving rod 930, a driving rod 931, a driving rod 932, a driving rod 933, a driving rod 934, a driving rod 935, a driving rod 936, a driving rod 937, a driving rod 938, a driving rod 939, a driving rod 939, a driving rod 931, a driving rod 934, a driving rod 935, a driving rod 936, a driving The ball 904 and the connecting track 905, and the first telescopic rod 903 is fixedly installed at the lower end of the mounting plate 902, driving the ball 904 to be fixedly installed at the lower end of the first telescopic rod 903, and driving the ball 904 to be arranged inside the connecting track 905; the outer surface of the driving ball 904 is set to be smooth, and a cylindrical groove is set at the upper end of the connecting track 905, and the driving ball 904 is slidably connected to the connecting track 905 through the groove opened on the connecting track 905, and the connecting track 905 is fixedly connected to the fixed rotating shaft 8.

[0031] When the spraying angle of the fixed nozzle 702 needs to be adjusted, the first telescopic rod 903 starts to work, because the driving ball 904 is installed at the lower end of the first telescopic rod 903, and the driving ball 904 starts to move downward at this time, that is, the driving ball 904 starts to slide in the connecting track 905, and the connecting track 905 starts to rotate. Because the connecting track 905 is interconnected with the fixed rotating shaft 8, the fixed rotating shaft 8 starts to rotate. With the rotation of the fixed rotating shaft 8, the spray plate 701 connected to the fixed rotating shaft 8 also starts to rotate. Through the rotation of the spray plate 701, the inclination angle of the spray plate 701 starts to rotate, so that the spraying angle of the fixed nozzle 702 can be adjusted, and the spraying range can be changed.

[0032] The gear set 10 is composed of two mutually meshing gears, and the two gear sets 10 are rotatably connected to the counterweight water tank 3 through a rotating shaft; a second telescopic rod 14 is fixedly provided on the upper end of the counterweight water tank 3, and a connecting rack 13 is fixedly installed on the second telescopic rod 14, and the connecting rack 13 is meshed with the gear set 10.

[0033] When the direction of the spraying needs to be changed, the second telescopic rod 14 starts to work, because the second telescopic rod 14 is connected to the connecting rack 13, and the connecting rack 13 is meshed with the gear set 10 (the gear set 10 is composed of two meshing gears, and the two gears constituting the gear set 10 are divided into a front gear and a rear gear according to the position relationship, and the rear gear is meshed with the connecting rack 13). At this time, the two gears constituting the gear set 10 start to rotate, because an adjusting component 9 is provided at the upper end of the gear set 10, and a spray plate 701 and a fixed nozzle 702 are provided on the adjusting component 9. At this time, the spray plate 701 starts to rotate, and the spraying direction of the spray plate 701 can be changed, thereby increasing the spraying range of the device, thereby achieving sufficient spraying and dust reduction according to the different dust raising ranges.

[0034] A protective sleeve 15 is arranged outside the spray assembly 7; a motor 11 is arranged on the left side of the spray plate 701, and the output end of the motor 11 is connected to the driving gear 12 through a rotating shaft, and the driving gear 12 is meshed with the protective sleeve 15 through a gear structure arranged on the left side of the protective sleeve 15.

[0035] When spraying for dust reduction is not needed, the motor 11 starts to work, because the output end of the motor 11 is connected to the driving gear 12 through the rotating shaft, and the driving gear 12 starts to rotate at this time, because the driving gear 12 and the gear structure arranged outside the protective sleeve 15 are meshed with the protective sleeve 15, and the protective sleeve 15 starts to rotate at this time. When the protective sleeve 15 rotates 180°, the protective sleeve 15 begins to shield and protect the fixed nozzle 702, and the receiving plate 703 installed on the spray plate 701 can achieve a close fit with the protective sleeve 15 to prevent excessive dust from falling into the bottom of the protective sleeve 15, thereby achieving the effect of protecting the fixed nozzle 702 and preventing dust from clogging the water spray holes opened on the fixed nozzle 702.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trenching device for municipal engineering construction, comprising a trenching machine (1), a driving structure (2) for driving a trenching sprocket to rotate is arranged on the left side of the trenching machine, characterized in that: A counterweight water tank (3) is fixedly arranged on the left side of the upper end of the trenching machine (1), a water guide pipe (4) is arranged through the lower end of the side of the counterweight water tank (3), a heat exchange plate (5) is fixedly arranged on the outside of the driving structure (2), and the water guide pipe (4) is fixedly arranged on the heat exchange plate (5), a water outlet pipe (6) is fixedly arranged on the upper end of the heat exchange plate (5), and a spray assembly (7) is fixedly arranged on the right side of the water outlet pipe (6), and a fixed rotating shaft (8) is arranged on the spray assembly (7), a gear group (10) is arranged on the upper end of the counterweight water tank (3), an adjustment assembly (9) is arranged on the upper end of the gear group (10), and the adjustment assembly (9) and the fixed rotating shaft (8) are connected to each other, and a protective sleeve (15) is arranged on the outside of the spray assembly (7); The spray assembly (7) comprises a spray plate (701), a fixed spray head (702) and a receiving plate (703), wherein the left side of the spray plate (701) is conductively connected to the water outlet pipe (6), the fixed spray head (702) is fixedly mounted on the lower end of the spray plate (701), the receiving plate (703) and the spray plate (701) are mutually connected, and the receiving plate (703) and the inner surface of the protective sleeve (15) are mutually fitted; The adjustment assembly (9) comprises a mounting plate (901) and an additional plate (902), wherein the mounting plate (901) is fixedly mounted on the gear set (10), the additional plate (902) is fixedly mounted on the mounting plate (901), and the mounting plate (901) is rotatably connected to the fixed rotating shaft (8) via a bearing mounted on an upper end thereof; The adjustment assembly (9) further comprises a first telescopic rod (903), a driving ball (904) and a connecting track (905), wherein the first telescopic rod (903) is fixedly mounted on the lower end of the mounting plate (902), the driving ball (904) is fixedly mounted on the lower end of the first telescopic rod (903), and the driving ball (904) is arranged inside the connecting track (905); The outer surface of the driving ball (904) is arranged to be smooth, a cylindrical groove is arranged at the upper end of the connecting track (905), and the driving ball (904) is slidably connected to the connecting track (905) via the groove provided on the connecting track (905), and the connecting track (905) is fixedly connected to the fixed rotating shaft (8).

2. A municipal engineering construction trench excavation device according to claim 1, characterized in that: A total of six heat exchange plates (5) are provided, and each of the heat exchange plates (5) is provided with a cavity for water to pass through, and the six heat exchange plates (5) are interconnected via pipes.

3. A municipal engineering construction trench excavation device according to claim 1, characterized in that: The gear set (10) is composed of two mutually meshing gears, and both gear sets (10) are rotationally connected to the counterweight water tank (3) via a rotating shaft.

4. A trench excavation device for municipal engineering construction according to claim 1, characterized in that: An electric motor (11) is arranged on the left side of the spray plate (701), and the output end of the electric motor (11) is connected to a driving gear (12) via a rotating shaft, and the driving gear (12) is meshed with the protective sleeve (15) via a gear structure arranged on the left side of the protective sleeve (15).

5. A municipal engineering construction trench excavation device according to claim 1, characterized in that: A second telescopic rod (14) is fixedly provided at the upper end of the counterweight water tank (3), and a connecting rack (13) is fixedly mounted on the second telescopic rod (14), and the connecting rack (13) and the gear set (10) are meshed with each other.

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