A cable tray cutting device for construction engineering

Abstract

The present invention relates to the technical field of shearing equipment, and discloses a cable tray cutting equipment for construction engineering, including a cable tray debonding component, the cable tray debonding component including a slide rail plate, the top of the slide rail plate is movably sleeved with a kit 1, the middle of the bottom end of the back side of the kit 1 is fixedly connected with a spring 1, one end of the spring 1 is fixedly connected with a kit 2, both ends of the bottom end of the back side of the spring 1 are fixedly connected with a movable rod 1, one end of the two movable rods 1 are movably sleeved with an air pipe, the two air pipes are movably sleeved at the two ends of the bottom end of the kit 2, the bottom of the kit 2 is fixedly connected with a rack, the tops of the two air pipes are movably sleeved with a movable rod 2, the tops of the two movable rods 2 are fixedly connected with a tool, the tool moves downward to cut and causes the kit 1 to slide on the top of the slide rail plate, and the spring 1 pulls the kit 2 to separate the cable tray from the adhesion of the incision, thereby facilitating the removal of the cable tray.

Description

Technical Field

[0001] The present invention relates to the technical field of shearing equipment, and more particularly to a cable tray cutting device for construction engineering. Background Art

[0002] Cable tray is a structure used to support and protect cables. It is an indispensable component in electrical engineering. In construction engineering applications, in order to meet actual engineering needs and ensure the accuracy, functionality and aesthetics of installation, cable trays need to be cut during installation. In order to facilitate equipment movement and reduce costs in construction engineering, mechanical transmission and hydraulic cylinders are often used to directly drive the blade to cut the cable tray. However, when the blade is cutting in this way, the tool and the bridge move perpendicular to each other. The bridge cut is very easy to adhere to the knife cut, making it difficult to remove. In addition, the cut adhesion is easy to form burrs, and the blade is prone to blunting, chipping or uneven wear after long-term cutting, which makes the shear force uneven, resulting in material tearing instead of neat cutting, forming burrs. The cable will rub against these burrs during laying or dragging, causing damage to the cable sheath, leading to short circuit or leakage problems. To this end, we propose a cable tray cutting device for construction engineering to solve the above problems. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a cable tray cutting device for construction engineering to solve the problems existing in the above-mentioned background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a cable tray cutting device for construction engineering, comprising a cable tray debonding assembly, the cable tray debonding assembly comprising a slide rail plate, the top of the slide rail plate is movably sleeved with a kit 1, a spring 1 is fixedly connected to the middle of the bottom end of the back side of the kit 1, one end of the spring 1 is fixedly connected to a kit 2, both ends of the bottom end of the back side of the kit 1 are fixedly connected to a movable rod 1, one end of each of the two movable rods 1 is movably sleeved with an air pipe, the two air pipes are movably sleeved at both ends of the bottom end of the kit 2, and the bottom of the kit 2 is fixedly connected to a rack;

[0005] The top ends of the two tracheas are movably connected to movable rods 2, and the top ends of the two movable rods 2 are fixedly connected to cutters;

[0006] The cutter moves downward to cut so that the first set slides on the top of the slide rail plate, and the first spring pulls the second set so that the bridge is separated from the adhesion of the cut.

[0007] Furthermore, the kit 1 includes a set 1, and the inner sides of both sides of the set 1 are provided with rectangular grooves, the bottom of the rectangular groove is fixedly connected to a spring 2, and the top of the spring 2 is fixedly connected to a roller.

[0008] Furthermore, the second set includes a second set, the inner sides of both sides and the inner side of the top of the second set are fixedly connected with clamps, the inner side of the bottom of the second set is fixedly connected with a pad, and the top of the second set is fixedly connected with an air pump;

[0009] The clamp consists of a clamping block, a short rod, and a short air pipe. One end of the short air pipe is movably connected to the short rod, and one end of the short rod is fixedly connected to the clamping block. The pad consists of a plate, a short rod, and a short air pipe. Both ends of the bottom of the plate are fixedly connected to the short rod, and the bottom ends of the two short rods are movably connected to the short air pipe.

[0010] Furthermore, the bottom of the bridge debonding assembly is fixedly connected to a transmission assembly, and the front of the transmission assembly is movably connected to a polishing assembly.

[0011] Furthermore, the transmission assembly includes a casing one, the top of the casing one is fixedly connected to a hydraulic assembly, the bottom of the hydraulic assembly is movably connected to a plunger rod, the bottom end of the plunger rod is fixedly connected to a tool, both ends of the tool are fixedly connected to a movable rod two, and the bottom ends of the two movable rods two are movably connected to an air pipe.

[0012] Furthermore, the inner side of the casing is rotatably connected to a rotating shaft 1, the side of one end of the rotating shaft is fixedly sleeved with a track, the front of the track is fixedly connected to a fixed plate, and the bottom end of the track is fixedly sleeved with a rotating shaft 2.

[0013] Furthermore, the bottom of the casing one is fixedly connected to the casing two, the inner sides of both sides of the casing two are rotatably connected to the rotating shaft two, the middle of the side of the rotating shaft two is fixedly sleeved with a gear, a strip-shaped slot is provided in the middle of the top of the casing two, and the top of the casing two is fixedly connected to a knife plate and corresponds to the knife.

[0014] Furthermore, two long slots are provided on the front of the housing 1, and the fixing plate is movably sleeved in the long slots.

[0015] Furthermore, the polishing assembly includes a connecting plate, a motor is fixed on the top of the connecting plate, a fixed plate is fixedly connected to the back of the connecting plate, a polishing belt is rotatably connected to the bottom of the connecting plate, two rotating drums are movably sleeved in the middle of the polishing belt, and a collection assembly is rotatably connected to the bottom of the polishing belt.

[0016] Furthermore, fan blades are fixedly sleeved on the bottom of the rotating drum, and the bottom end of the rotating drum is rotatably connected to the inner side of the bottom of the collecting assembly.

[0017] The technical effects and advantages of the present invention are as follows:

[0018] 1. Use the tool to move vertically downward to cut, causing Kit 1 to move along the track of the slide plate, thereby pulling Spring 1 and Kit 2 to securely clamp the cable tray. As Kit 1 moves, the tool cuts the cable tray, causing Kit 2, which holds the cable tray, to also remain stationary. When the tool cuts through the cable tray, the cable tray loses its grip on the tool. Under the action of Spring 1, Kit 2 and the cable tray move together toward Kit 1, freeing the cable tray from the cut.

[0019] 2. When Kit 2 moves, the rack connected to its bottom also moves. The gear meshes with the rack, causing it to rotate, which in turn drives the track, causing the polishing assembly to move down to the bridge cutout. The motor drives the polishing belt to polish the bridge cutout, removing burrs and preventing the cable sheath from being damaged by friction with burrs during cable laying or dragging, thereby preventing short circuits or leakage.

[0020] 3. As the grinding belt rotates, it drives the drum, which in turn rotates the blades at the bottom of the drum, generating suction that draws burrs and debris generated by the grinding belt polishing the bridge into the collection assembly, preventing the burrs and debris from scattering into the interior of the equipment and damaging internal parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the overall front side of the present invention;

[0022] Figure 2 This is a structural schematic diagram of the front side of the bridge debonding assembly of the present invention;

[0023] Figure 3 This is a structural schematic diagram of the side surface of the bridge debonding assembly of the present invention;

[0024] Figure 4 It is a schematic structural diagram of the side section of the bridge debonding assembly of the present invention;

[0025] Figure 5 This is a schematic structural diagram of a kit of the present invention;

[0026] Figure 6 This is a structural schematic diagram of the second kit of the present invention;

[0027] Figure 7 It is a schematic structural diagram of the front cross section of the transmission assembly of the present invention;

[0028] Figure 8 This is a schematic structural diagram of the front side of the transmission assembly of the present invention;

[0029] Figure 9 It is a schematic structural diagram of the polishing assembly of the present invention;

[0030] Figure 10 Schematic diagram of the structure of the collection component of the present invention.

[0031] The accompanying drawings are marked as follows: 1. Bridge debonding assembly; 101. Slide plate; 102. Kit 1; 1021. Kit 1; 1022. Spring 2; 1023. Roller; 103. Spring 1; 104. Kit 2; 1041. Kit 2; 1042. Clamp; 1043. Pad; 1044. Air pump; 105. Active rod 1; 106. Air pipe; 107. Rack; 2. Transmission assembly; 20 1. Casing 1; 202. Hydraulic assembly; 203. Plunger rod; 204. Cutting tool; 205. Movable rod 2; 206. Cutting plate; 207. Rotating shaft 1; 208. Track; 209. Fixed plate; 210. Casing 2; 211. Rotating shaft 2; 212. Gear; 3. Polishing assembly; 301. Connecting plate; 302. Motor; 303. Grinding belt; 304. Rotating drum; 305. Collecting assembly. DETAILED DESCRIPTION

[0032] The technical solutions of the present invention will be described clearly and completely below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The cable tray cutting equipment for construction engineering involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Reference Figures 1 to 9 The present invention provides a cable tray cutting device for construction engineering, including a cable tray debonding component 1, the cable tray debonding component 1 including a slide plate 101, the top of the slide plate 101 is movably sleeved with a kit 102, a spring 103 is fixedly connected to the middle of the bottom end of the back of the kit 102, and one end of the spring 103 is fixedly connected to a kit 2 104, the slide plate 101 serves as a basic support guide rail to ensure the linear sliding of the kit 102, and needs to have high wear resistance and a low friction coefficient (such as hard chrome plating or polytetrafluoroethylene padding).

[0034] The bottom of the bridge debonding component 1 is fixedly connected to a transmission component 2, and the transmission component 2 includes a housing 1 201, a hydraulic component 202 is fixedly connected to the top of the housing 1 201, and a plunger rod 203 is movably connected to the bottom of the hydraulic component 202. The bottom end of the plunger rod 203 is fixedly connected to a tool 204, and both ends of the tool 204 are fixedly connected to a movable rod 205, and the bottom ends of the two movable rods 205 are movably connected to the air pipe 106;

[0035] The hydraulic assembly 202 pushes the plunger rod 203 downward, and the tool 204 cuts into the bridge vertically. At the same time, the movable rod 205 compresses the air in the air pipe 106. The reverse force of the air assists in buffering, reducing the damage to the tool caused by the rigid collision between the tool and the bridge.

[0036] The front of the transmission assembly 2 is movably connected to the polishing assembly 3, and the polishing assembly 3 includes a connecting plate 301, a motor 302 is fixed on the top of the connecting plate 301, and a fixing plate 209 is fixedly connected to the back of the connecting plate 301;

[0037] The fixing plate 209 slides up and down in the long groove to limit the vertical movable area of ​​the polishing assembly 3 .

[0038] What needs to be specifically explained in this embodiment is that the bridge frame debonding component 1 allows the bridge frame to be freed from the adhesion of the incision, and the polishing component 3 removes the burrs of the bridge frame incision to prevent the cable from rubbing against the burrs during laying or dragging and causing damage to the cable sheath. The specific structure and working principle of the above components will be described in detail later.

[0039] Reference Figures 2 to 4 , both ends of the bottom end of the back side of the kit 102 are fixedly connected with a movable rod 105, one end of the two movable rods 105 are movably sleeved with an air tube 106, the two air tubes 106 are movably sleeved at both ends of the bottom end of the kit 2 104, and the bottom of the kit 2 104 is fixedly connected with a rack 107, the air tube 106 serves as a guide sleeve to limit the radial displacement of the kit 2 104 and prevent deflection, retaining only the axial sliding degree of freedom, the bottom rack 107 of the kit 2 104 is engaged with the external gear, further constraining the rotational degree of freedom to ensure pure linear motion, the top ends of the two air tubes 106 are movably sleeved with a movable rod 205, and the top ends of the two movable rods 205 are fixedly connected with a tool 204;

[0040] The two air pipes 106 are arranged in parallel, and the tool 204 is synchronously guided by the movable rod 205 to form a double-track guiding structure, which avoids tool deflection or jamming caused by unilateral force, reduces burrs caused by lateral cutting, and reduces the workload for subsequent burr grinding.

[0041] In this embodiment, it is necessary to specifically explain that a slide rail is provided on the top of the slide plate 101, and the kit 102 and the kit 2 104 are movably connected and moved in the slide rail. A rectangular slot is provided in the middle of the slide plate 101 for the rack 107 to move. The spring 103 is not limited to a spring element, and other components with elasticity and memory reset can be used, such as rubber pads. The preferred spring element has the best effect. The structure of the air pipe 106 is formed by connecting the horizontal and vertical pipe ends. The movable rod 105 is movably connected to the horizontal pipe port, and the movable rod 205 is movably connected to the vertical pipe port. The rack 107 is composed of a connecting block and a strip plate. The bottom end of the connecting block is fixedly connected to one end of the top of the strip plate, and the top of the connecting block is fixedly connected to the bottom of the kit 2 104. The bottom of the strip plate is fixedly connected with a tooth row, and one-third of the bottom end of the strip plate is a smooth plane for subsequent reflection. A period of idle time is provided to the meshing drive, and the bridge debonding component 1 uses the tool 204 to move vertically downward for cutting, so that the movable rod 205 squeezes the air inside the air pipe 106. After the air in the air pipe 106 is compressed, the pressure pushes the movable rod 105 to move outward, so that the kit 102 moves along the track of the slide plate 101, and then pulls the spring 103, and the kit 2 104 fixes and clamps the cable bridge. During the movement of the kit 102, the tool 204 is cutting the cable bridge, and thus the kit 2 104 that fixes the bridge is also fixed. When the tool 204 cuts off the bridge, the bridge loses the vertical fixing force of the tool, and the bridge loses the fixation of the tool 204. Under the action of the elastic force of the spring 103, the spring force forcibly pulls the bridge off from the adhesion of the incision, and the kit 2 104 and the bridge move toward the kit 1 together, so that the bridge is separated from the adhesion of the incision.

[0042] Reference Figure 5 The kit 102 includes a set 1021, and the inner sides of both sides of the set 1021 are provided with rectangular grooves, the bottom of the rectangular groove is fixedly connected to a spring 2 1022, and the top of the spring 2 1022 is fixedly connected to a roller 1023.

[0043] It should be specifically explained in this embodiment that the roller 1023 is composed of an intermediate shaft and an outer roller, and the two ends of the roller 1023 are respectively located in two opposite rectangular grooves, and the spring 2 1022 is similar to the spring 1 103.

[0044] Reference Figure 6 The second set 104 includes a second set 1041 , the inner sides of both sides and the inner side of the top of the second set 1041 are fixedly connected with a clamp 1042 , and the inner side of the bottom of the second set 1041 is fixedly connected with a pad 1043 ;

[0045] In the original state, the pad 1043 is located at the same horizontal line as the top of the roller 1023 to ensure that the bridge frame enters horizontally and parallelly. The top of the second set 1041 is fixedly connected to the air pump 1044.

[0046] What needs to be specifically explained in this embodiment is that the clamp 1042 is composed of a clamping block, a short rod, and a short air pipe. One end of the short air pipe is movably connected to the short rod, and one end of the short rod is fixedly connected to the clamping block. The pad 1043 is composed of a plate, a short rod, and a short air pipe. The short air pipe is made of a flexible material. Both ends of the bottom of the plate are fixedly connected to the short rod, and the bottom ends of the two short rods are movably connected to the short air pipe. The short air pipes of the clamps 1042 located on the inner sides of the two sides of the set 1041 are respectively fixedly connected to the short air pipes of the pad 1043, and the air pump 1044 is fixedly connected to the short air pipe of the clamp 1042 on the inner side of the top of the set 1041.

[0047] The air pump 1044 inflates the short rod and the short air tube. The high-pressure gas is injected through the short air tube to push the short rod toward the bridge. The clamp at the end of the short rod presses the bridge with vertical force to prevent displacement during cutting. The flexibility of the short air tube allows the clamp to fine-tune the angle to adapt to the uneven surface of the bridge.

[0048] Reference Figure 7 The inner side of the casing 201 is rotatably connected to a rotating shaft 1 207, and a track 208 is fixedly sleeved on the side of one end of the rotating shaft 1 207. A fixed plate 209 is fixedly connected to the front of the track 208, and a rotating shaft 211 is fixedly sleeved on the bottom end of the track 208. The bottom of the casing 1 201 is fixedly connected to a casing 2 210, and the inner sides of both sides of the casing 210 are rotatably connected to the rotating shaft 211. A gear 212 is fixedly sleeved in the middle of the side of the rotating shaft 211. A strip slot is provided in the middle of the top of the casing 210. A knife plate 206 is fixedly connected to the top of the casing 210 and corresponds to 204. A groove is provided on the top of the knife plate 206. When the knife plate 206 falls completely and overlaps with the groove, it protects the knife plate 206 and prevents it from collapsing.

[0049] It should be specifically explained in this embodiment that the hydraulic assembly 202 is composed of a hydraulic pump, a hydraulic valve, and a hydraulic cylinder. The hydraulic assembly 202 is a prior art and will not be described in detail here.

[0050] Reference Figure 8 The front of the housing 1 201 is provided with two long slots, and the fixing plate 209 is movably sleeved in the long slots.

[0051] Reference Figure 9 The bottom of the connecting plate 301 is rotatably connected to a grinding belt 303, and the grinding belt 303 is a fine grinding material, such as silicon carbide or aluminum oxide abrasive belt (with a particle size of about 150-240 mesh);

[0052] The displacement stroke of the grinding belt 303 is precisely matched to the length of the non-smooth surface of the strip, so as to ensure that the grinding belt is accurately positioned at the bridge cutout.

[0053] Two rotating drums 304 are movably sleeved in the middle of the grinding belt 303 , and a collecting assembly 305 is rotatably connected to the bottom of the grinding belt 303 .

[0054] What needs to be specifically explained in this embodiment is that a grinding strip is provided on the outer surface of the grinding belt 303 , and the motor 302 is fixedly connected to one end of the top of the grinding belt 303 .

[0055] Reference Figure 10 The bottom of the rotating drum 304 is fixedly sleeved with fan blades, and the bottom end of the rotating drum 304 is rotatably connected to the inner side of the bottom of the collecting component 305.

[0056] It should be specifically noted that in this embodiment, one-third of the bottom end of the strip of the rack 107 is a smooth surface. When the cutter 204 moves upward and withdraws, the rack 107 moves back, and a portion of the rack 107 is not engaged with the gear 212. This delays the reset of the polishing assembly 3, allowing the bridge to more fully and closely contact the polishing belt 303, thereby greatly improving the polishing effect and ensuring that every detail of the bridge cut is finely processed.

[0057] The two ends of the collecting assembly 305 are fixedly connected with a filter screen to block the debris in the collecting assembly 305. The filter screen has good air permeability, and air can pass through the filter screen to ensure the air circulation inside the collecting assembly. When the kit 2 104 moves, the rack 107 connected to the bottom of the kit 2 104 also moves, and the gear 212 rotates due to engagement with the rack 107, further driving the crawler 208 to rotate, so that the polishing assembly 3 moves down to the bridge cutout, and the motor 302 drives the polishing belt 303 to polish the bridge cutout to remove The burrs on the bridge frame cutouts are prevented from being damaged by friction with the burrs during the laying or dragging process of the cable, thereby avoiding short circuit or leakage. During the rotation of the grinding belt 303, the rotating drum 304 is driven to rotate, and the fan blades at the bottom of the rotating drum 304 rotate (air volume ≥ 10m³ / min, vacuum degree about -15kPa), thereby generating suction, and the burrs and debris generated by the grinding belt 303 when polishing the bridge frame are sucked into the collection component 305, preventing the burrs and debris from being scattered into the interior of the equipment and causing damage to internal parts.

[0058] The working principle of the present invention is as follows: the cable tray is placed in Kit 1 102 and Kit 2 104, the air pump 1044 inflates the short air pipe so that the clamp 1042 clamps the tray, and the hydraulic component 202 drives the tool 204 to move down to cut the tray, so that the movable rod 205 squeezes the air inside the air pipe 106, and then pushes the movable rod 105 to move outward, so that Kit 1 102 moves along the track of the slide plate 101, and then pulls the spring 103, and Kit 2 104 fixes and clamps the cable tray. During the movement of Kit 102, the tool 204 is cutting the cable tray, and thus Kit 2 104 that fixes the tray is also fixed. When the tool 204 cuts off the tray, the tray loses the fixation of the tool 204. Under the action of the elastic force of the spring 103, Kit 2 104 and the tray move toward Kit 1 together, so that the tray is separated from the adhesion of the incision.

[0059] When the kit 2 104 moves, the rack 107 connected to the bottom of the kit 2 104 also moves, and the gear 212 rotates due to the engagement with the rack 107, further driving the track 208 to rotate, so that the polishing component 3 moves down to the bridge frame incision, and the motor 302 drives the grinding belt 303 to grind and polish the bridge frame incision to remove the burrs on the bridge frame incision, thereby preventing the cable from rubbing against the burrs during the laying or dragging process and causing the cable sheath to be damaged, thereby avoiding causing a short circuit or leakage. During the rotation of the grinding belt 303, it drives the rotating drum 304 to rotate, and then the fan blades at the bottom of the rotating drum 304 rotate, thereby generating suction, and the burrs and debris generated by the grinding belt 303 when polishing the bridge are sucked into the collection component 305, to prevent the burrs and debris from scattering into the interior of the equipment and causing damage to internal parts.

[0060] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0061] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0062] Finally: 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 scope of protection of the present invention.

Claims

1. A cable tray cutting device for construction engineering, comprising a cable tray debonding assembly (1), characterized in that: The bridge frame debonding assembly (1) includes a slide rail plate (101), the top of the slide rail plate (101) is movably sleeved with a kit 1 (102), the middle of the bottom end of the back side of the kit 1 (102) is fixedly connected with a spring 1 (103), one end of the spring 1 (103) is fixedly connected with a kit 2 (104), both ends of the bottom end of the back side of the kit 1 (102) are fixedly connected with a movable rod 1 (105), one end of the two movable rods 1 (105) are movably sleeved with an air pipe (106), the two air pipes (106) are movably sleeved at both ends of the bottom end of the kit 2 (104), and the bottom of the kit 2 (104) is fixedly connected with a rack (107); The top ends of the two tracheas (106) are movably sleeved with movable rods (205), and the top ends of the two movable rods (205) are fixedly connected with cutters (204); The kit 1 (102) includes a set 1 (1021), wherein rectangular grooves are provided on the inner sides of both sides of the set 1 (1021), a spring 2 (1022) is fixedly connected to the bottom of the rectangular groove, and a roller (1023) is fixedly connected to the top of the spring 2 (1022); The second set (104) includes a second set (1041), the inner sides of both sides and the inner side of the top of the second set (1041) are fixedly connected to clamps (1042), the inner side of the bottom of the second set (1041) is fixedly connected to a pad (1043), and the top of the second set (1041) is fixedly connected to an air pump (1044); The clamp (1042) is composed of a clamping block, a short rod, and a short air tube. One end of the short air tube is movably connected to the short rod, and one end of the short rod is fixedly connected to the clamping block. The pad (1043) is composed of a plate, a short rod, and a short air tube. Both ends of the bottom of the plate are fixedly connected to the short rod, and the bottom ends of the two short rods are movably connected to the short air tube. The cutter (204) moves downward to cut, causing the movable rod (205) to squeeze the air inside the air tube (106), thereby pushing the movable rod (105) to move outward, causing the kit (102) to move along the track of the slide plate (101), and the spring (103) pulls the kit (104) to separate the bridge from the adhesion of the incision.

2. A cable tray cutting device for construction engineering according to claim 1, characterized in that: The bottom of the bridge debonding component (1) is fixedly connected to a transmission component (2), and the front of the transmission component (2) is movably connected to a polishing component (3).

3. The cable tray cutting device for construction engineering according to claim 2, characterized in that: The transmission assembly (2) comprises a housing (201), the top of the housing (201) is fixedly connected to a hydraulic assembly (202), the bottom of the hydraulic assembly (202) is movably connected to a plunger rod (203), the bottom end of the plunger rod (203) is fixedly connected to a tool (204), both ends of the tool (204) are fixedly connected to a movable rod (205), and the bottom ends of the two movable rods (205) are movably connected to an air pipe (106).

4. The cable tray cutting device for construction engineering according to claim 3, characterized in that: The inner side of the housing (201) is rotatably connected to a rotating shaft (207), a track (208) is fixedly sleeved on the side of one end of the rotating shaft (207), a fixed plate (209) is fixedly connected to the front of the track (208), and a rotating shaft (211) is fixedly sleeved on the bottom end of the track (208).

5. The cable tray cutting device for construction engineering according to claim 4, characterized in that: The bottom of the housing 1 (201) is fixedly connected to the housing 2 (210), the inner sides of both sides of the housing 2 (210) are rotatably connected to the rotating shaft 2 (211), the middle of the side of the rotating shaft 2 (211) is fixedly sleeved with a gear (212), the top middle of the housing 2 (210) is provided with a strip-shaped slot, the top of the housing 2 (210) is fixedly connected to a knife plate (206) and corresponds to the knife (204).

6. The cable tray cutting device for construction engineering according to claim 5, characterized in that: Two long slots are provided on the front of the housing 1 (201), and the fixing plate (209) is movably sleeved in the long slots.

7. A cable tray cutting device for construction engineering according to claim 6, characterized in that: The polishing assembly (3) comprises a connecting plate (301), a motor (302) is fixed to the top of the connecting plate (301), a fixing plate (209) is fixedly connected to the back of the connecting plate (301), a polishing belt (303) is rotatably connected to the bottom of the connecting plate (301), two rotating drums (304) are movably sleeved in the middle of the polishing belt (303), and a collecting assembly (305) is rotatably connected to the bottom of the polishing belt (303).

8. The cable tray cutting device for construction engineering according to claim 7, characterized in that: The bottom of the rotating drum (304) is fixedly sleeved with fan blades, and the bottom end of the rotating drum (304) is rotatably connected to the inner side of the bottom of the collecting assembly (305).

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