Bridge expansion joint cutting device

Abstract

The utility model relates to the field of cutting equipment, and discloses a bridge expansion joint cutting device which comprises a cutting machine body, a transmission shaft is rotatably arranged on the cutting machine body, a saw blade of the cutting machine body is sleeved on the transmission shaft, and a water passing channel is arranged in the transmission shaft. The number of the water guide sleeves is two, and the two water guide sleeves are arranged on the transmission shaft in a sleeving mode and located on the two sides of the saw blade correspondingly. The side, close to the saw blade, of the water guide sleeve is provided with a plurality of spray head sets in the radial direction, each spray head set comprises a plurality of spray heads arranged in the circumferential direction of the saw blade at intervals, and the interior of the water guide sleeve communicates with the spray heads and the water passing channel; the water supply assembly is arranged on the cutting machine body, and the water outlet end of the water supply assembly is connected with the end of the transmission shaft through the high-pressure sealing rotating water tail and communicates with the water passing channel. In the expansion joint cutting process, water is sprayed to the two sides of the saw blade at the same time through the multiple sprayers on the two water guide sleeves, and the cooling uniformity of the saw blade can be remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting equipment field especially relates to a bridge expansion joint cutting device. BACKGROUND

[0002] When constructing a bridge, the expansion of the bridge needs to be considered to ensure that the physical property of thermal expansion and cold contraction does not affect the normal use of the bridge, so the bridge needs to be cut by a cutting device.

[0003] During the expansion joint cutting process, the high-speed rotating saw blade continuously rubs against the bridge concrete structure, which can increase the temperature of the saw blade; in the prior art, in order to cool the saw blade, water is usually sprayed onto the surface of the saw blade through a water pipe; this method can cool the saw blade, but the cooling uniformity is poor. Therefore, it is necessary to design a bridge expansion joint cutting device to solve the problems of the prior art. SUMMARY

[0004] Based on the above problems, the purpose of the utility model is to provide a bridge expansion joint cutting device to solve the problems of the prior art.

[0005] The utility model adopts the following technical scheme:

[0006] The utility model provides a bridge expansion joint cutting device, which comprises a cutting machine body and further comprises:

[0007] A transmission shaft is rotationally arranged on the cutting machine body, the saw blade of the cutting machine body is sleeved on the transmission shaft, and the transmission shaft is internally provided with a water passage;

[0008] Two water guide sleeves are sleeved on the transmission shaft and are located on the two sides of the saw blade respectively; the water guide sleeve is internally provided with a plurality of groups of nozzles on the side close to the saw blade along the radial direction, each group of nozzles comprises a plurality of nozzles arranged at intervals along the circumferential direction of the saw blade, and the inside of the water guide sleeve is in communication with the nozzles and the water passage respectively;

[0009] A water supply assembly is arranged on the cutting machine body, the water outlet end of the water supply assembly is connected to the end of the transmission shaft through a high-pressure sealing rotating water tail, and is in communication with the water passage.

[0010] Further, two groups of water passage hole groups are arranged on the transmission shaft along the axial direction, and the two groups of water passage hole groups correspond to the water guide sleeves respectively; each group of water passage hole groups comprises a plurality of water passage holes arranged at intervals along the circumferential direction of the transmission shaft, and the plurality of water passage holes are located within the range surrounded by the corresponding water guide sleeve.

[0011] Further, a partition plate is arranged between two adjacent water passing holes in the water passing hole group, and two ends of the partition plate are connected with the outer wall of the transmission shaft and the inner wall of the corresponding water guide sleeve.

[0012] Further, the cutting machine body comprises a moving vehicle body, and the water supply assembly is arranged on the moving vehicle body; a mounting plate is hingedly connected to the moving vehicle body, and a plurality of connecting members are arranged at the end of the mounting plate; the transmission shaft is rotatably connected to the moving vehicle body through the connecting members; a rotary driving component is arranged on the mounting plate, and an output shaft of the rotary driving component is connected to the transmission shaft through a transmission assembly; and an angle adjusting assembly is arranged on the moving vehicle body, and the angle adjusting assembly drives the mounting plate to rotate around the hinge between the mounting plate and the moving vehicle body.

[0013] Further, the water supply assembly comprises a water tank arranged on the top surface of the moving vehicle body, and a water outlet pipe is connected to the bottom of one side of the water tank; the water inlet end of a water pump is connected to the end of the water outlet pipe; the water outlet end of the water pump is connected to the high-pressure sealed rotary water tail through an elastic hose, and the moving vehicle body is provided with a gap for the transmission shaft and the high-pressure sealed rotary water tail to penetrate.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0015] In the expansion joint cutting process, the plurality of nozzles on the two water guide sleeves spray water to the two sides of the saw blade at the same time, and the uniformity of the cooling of the saw blade can be significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in connection with the drawings.

[0017] Figure 1 It is the three-dimensional structure schematic view of bridge expansion joint cutting device of the utility model;

[0018] Figure 2 It is the plane section view of transmission shaft of the utility model;

[0019] Figure 3 It is the plane section view of water guide sleeve of the utility model;

[0020] Figure 4 It is another three-dimensional structure schematic view of bridge expansion joint cutting device of the utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Cutting machine body; 101. Saw blade; 102. Moving vehicle body; 1021. Clearance notch; 103. Mounting plate; 104. Connector; 105. Rotary drive component; 106. Transmission assembly; 1061. Belt; 1062. Pulley; 107. Angle adjustment assembly; 1071. Electric push rod; 108. Connecting plate; 109. Shield; 2. Drive shaft; 201. Water passage; 202. Water passage hole; 3. Water guide sleeve; 301. Cavity; 4. Nozzle; 5. Water supply assembly; 501. Water tank; 502. Water outlet pipe; 503. Water pump; 504. Telescopic hose; 6. High-pressure sealed rotating water tail; 7. Baffle plate; 8. Rechargeable battery. Detailed Implementation

[0022] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1-4 As shown, this embodiment discloses a bridge expansion joint cutting device, including a cutting machine body 1, a drive shaft 2 rotatably mounted on the cutting machine body 1, a saw blade 101 fixedly mounted on the drive shaft 2, and a water passage 201 provided inside the drive shaft 2; two water guide sleeves 3 are provided, both fixedly mounted on the drive shaft 2 and located on both sides of the saw blade 101; multiple sets of nozzles are radially arranged on the side of the water guide sleeve 3 near the saw blade 101, each set of nozzles includes multiple nozzles 4 arranged circumferentially along the saw blade 101, and the interior of the water guide sleeve 3 is connected to the nozzles 4 and the water passage 201 respectively; a water supply component 5 is mounted on the cutting machine body 1, and the water outlet of the water supply component 5 is connected to the end of the drive shaft 2 through a high-pressure sealed rotating water tail 6 and is connected to the water passage 201.

[0024] In this embodiment, the size of the water guide sleeve 3 is smaller than the size of the saw blade 101, the nozzle 4 is set as an atomizing nozzle, and the water supply assembly 5 delivers water to the water passage 201 inside the drive shaft 2 through the high-pressure sealed rotating water tail 6. After flowing in the water passage 201, the water can enter the interior of the two water guide sleeves 3 and be sprayed through the nozzle 4 on the water guide sleeve 3.

[0025] By adopting this scheme, during the expansion joint cutting process, water is sprayed simultaneously onto both sides of the saw blade 101 through multiple nozzles 4 on the two water guide sleeves 3, which can significantly improve the uniformity of cooling the saw blade 101.

[0026] Further optimization scheme, the transmission shaft 2 is provided with two groups of water passing hole groups in the axial direction, and the two groups of water passing hole groups correspond to the water guide sleeves 3 respectively; each group of water passing hole groups comprises a plurality of water passing holes 202 arranged at intervals in the circumferential direction of the transmission shaft 2, and the plurality of water passing holes 202 are located within the range surrounded by the corresponding water guide sleeve 3. When the water flows in the water passing channel 201, it can enter the inside of the corresponding water guide sleeve 3 through the water passing hole 202, and then be sprayed through the spray head 4 on the water guide sleeve 3.

[0027] Further optimization scheme, the transmission shaft 2 is provided with two groups of water passing hole groups in the axial direction, and the two groups of water passing hole groups correspond to the water guide sleeves 3 respectively; each group of water passing hole groups comprises a plurality of water passing holes 202 arranged at intervals in the circumferential direction of the transmission shaft 2, and the plurality of water passing holes 202 are located within the range surrounded by the corresponding water guide sleeve 3. When the water flows in the water passing channel 201, it can enter the inside of the corresponding water guide sleeve 3 through the water passing hole 202, and then be sprayed through the spray head 4 on the water guide sleeve 3.

[0028] Further optimization scheme, the cutting machine body 1 comprises a moving vehicle body 102, and the water supply assembly 5 is arranged on the moving vehicle body 102; the moving vehicle body 102 is hingedly connected with a mounting plate 103, the end of the mounting plate 103 is fixedly connected with a plurality of parallel and spaced apart connecting pieces 104, the transmission shaft 2 is rotatably connected with the moving vehicle body 102 through the plurality of connecting pieces 104; the mounting plate 103 is provided with a rotary driving component 105, the output shaft of the rotary driving component 105 is connected with the transmission shaft 2 through a transmission assembly 106; the moving vehicle body 102 is provided with an angle adjusting assembly 107, and the angle adjusting assembly 107 drives the mounting plate 103 to rotate around the hinge between the mounting plate 103 and the moving vehicle body 102.

[0029] In the embodiment, the rotary driving component 105 is arranged as an electric motor, and the fixed end of the rotary driving component 105 is fixed on the mounting plate 103; the transmission assembly 106 is arranged as a belt 1061 and a belt pulley 1062, and the output shaft of the rotary driving component 105 and the transmission shaft 2 are both fixedly sleeved with the belt pulley 1062, and the two belt pulleys 1062 are sleeved with the belt 1061.

[0030] By adopting the scheme, the rotary driving component 105 drives the transmission shaft 2 to rotate through the transmission assembly 106, and the transmission shaft 2 drives the saw blade 101 to rotate at high speed, so that the effect of cutting the expansion joint of the bridge can be achieved.

[0031] Further optimization scheme, the end of the mounting plate 103 is fixedly provided with a shielding cover 109 through a plurality of connecting plates 108, and the shielding cover 109 covers the saw blade 101. In the embodiment, the saw blade 101 and the shielding cover 109 are in clearance fit, and the shielding cover 109 shields the two side portions and the top portion of the saw blade 101.

[0032] Further optimization scheme, the angle adjusting assembly 107 includes two parallel spaced electric push rods 1071, the fixed end of the electric push rod 1071 is hinged on the moving vehicle body 102, and the moving end of the electric push rod 1071 is hinged on the mounting plate 103. By controlling the electric push rod 1071 and making the moving end thereof lengthen or shorten, the effect of driving the mounting plate 103 to rotate around the hinge thereof with the moving vehicle body 102 can be realized, so that the rotary driving part 105, the transmission assembly 106, the connecting piece 104, the transmission shaft 2, the saw blade 101, the water guide sleeve 3, the spray head 4, the connecting plate 108 and the shielding cover 109 can be driven to rotate as a whole, and the effect of adjusting the cutting depth of the saw blade 101 is realized.

[0033] Further optimization scheme, the water supply assembly 5 includes a water tank 501 fixed on the top surface of the moving vehicle body 102, the bottom of one side of the water tank 501 is fixedly connected with a water outlet pipe 502, the tail end of the water outlet pipe 502 is fixedly connected with the water inlet end of a water pump 503, the water outlet end of the water pump 503 is fixedly connected with the high-pressure sealed rotary water tail 6 through a flexible hose 504 at an end away from the transmission shaft 2, and the moving vehicle body 102 is provided with an avoiding gap 1021 for the transmission shaft 2 and the high-pressure sealed rotary water tail 6 to penetrate.

[0034] In the embodiment, a valve is fixedly installed on the water outlet pipe 502. Through the water pump 503 and the water outlet pipe 502, the water in the water tank 501 can be pumped out and delivered into the water passing channel 201 in the transmission shaft 2 through the flexible hose 504 and the high-pressure sealed rotary water tail 6. During cutting, the transmission shaft 2, the saw blade 101 and the water guide sleeve 3 rotate synchronously, and the flexible hose 504 does not rotate under the action of the high-pressure sealed rotary water tail 6.

[0035] It should be noted that the flexible hose 504 can be stretched and contracted within a certain range and can meet the movement needs of the saw blade 101.

[0036] Further optimization scheme, the moving vehicle body 102 is fixedly installed with a rechargeable battery 8. The rechargeable battery 8 is used for supplying power to the electric push rod, the rotary driving part and the water pump.

[0037] The above-described embodiments only describe the preferred modes of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various modifications and improvements to the technical solutions of the utility model made by those skilled in the art shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A bridge expansion joint cutting device, comprising a cutting machine body (1), characterized in that: Also includes: A drive shaft (2) is rotatably mounted on the cutting machine body (1). The saw blade (101) of the cutting machine body (1) is mounted on the drive shaft (2). A water passage (201) is provided inside the drive shaft (2). Water guide sleeve (3), there are two water guide sleeves (3), both of which are fitted on the drive shaft (2) and are located on both sides of the saw blade (101); the water guide sleeve (3) has multiple sets of nozzle groups arranged radially on the side close to the saw blade (101), each set of nozzle groups includes multiple nozzles (4) arranged circumferentially along the saw blade (101), and the interior of the water guide sleeve (3) is connected to the nozzles (4) and the water passage (201); Water supply component (5) is installed on the cutting machine body (1). The water outlet of the water supply component (5) is connected to the end of the drive shaft (2) through a high-pressure sealed rotating water tail (6) and is connected to the water passage (201).

2. The bridge expansion joint cutting device according to claim 1, characterized in that: Two sets of water passage holes are provided on the drive shaft (2) along the axial direction. The two sets of water passage holes correspond to the water guide sleeve (3) respectively. Each set of water passage holes includes multiple water passage holes (202) arranged circumferentially along the drive shaft (2), and the multiple water passage holes (202) are all located within the range surrounded by the corresponding water guide sleeve (3).

3. The bridge expansion joint cutting device according to claim 2, characterized in that: A partition (7) is provided between each two adjacent water passages (202) in the same water passage group. The two ends of the partition (7) are respectively connected to the outer wall of the drive shaft (2) and the inner wall of the corresponding water guide sleeve (3).

4. The bridge expansion joint cutting device according to claim 1, characterized in that: The cutting machine body (1) includes a mobile body (102), and the water supply component (5) is mounted on the mobile body (102). A mounting plate (103) is hinged to the mobile body (102), and a plurality of parallel and spaced connectors (104) are provided at the end of the mounting plate (103). The drive shaft (2) is rotatably connected to the mobile body (102) through the plurality of connectors (104). A rotary drive component (105) is provided on the mounting plate (103), and the output shaft of the rotary drive component (105) is connected to the drive shaft (2) through a transmission component (106). An angle adjustment component (107) is provided on the mobile body (102), and the angle adjustment component (107) drives the mounting plate (103) to rotate around the hinge point between it and the mobile body (102).

5. The bridge expansion joint cutting device according to claim 4, characterized in that: The water supply assembly (5) includes a water tank (501) disposed on the top surface of the mobile vehicle body (102). A water outlet pipe (502) is connected to the bottom side of one side of the water tank (501). The end of the water outlet pipe (502) is connected to the water inlet of a water pump (503). The water outlet of the water pump (503) is connected to the high-pressure sealed rotating water tail (6) at the end away from the drive shaft (2) through a telescopic hose (504). The mobile vehicle body (102) is provided with a clearance notch (1021) for the drive shaft (2) and the high-pressure sealed rotating water tail (6) to pass through.

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