Joint cutting equipment for road and bridge construction

Abstract

The utility model belongs to the technical field of road and bridge construction equipment, and provides road and bridge construction joint cutting equipment which comprises a base and a motor installed on the base, and a cutting wheel is coaxially fixed to the power output end of the motor. A rolling wheel set is installed on the side, away from the cutting wheel, of the bottom of the base, a top supporting rod is installed on the side, close to the cutting wheel, of the bottom of the base, openings are formed in the bottom end and the rear side of the top supporting rod, a toothed plate is slidably arranged in the top supporting rod in a sleeved mode, sawteeth of the toothed plate protrude out of the opening in the rear side of the top supporting rod, and a top supporting wheel is installed at the bottom end of the toothed plate. A cross rod is rotatably installed at the bottom of the base, the outer side of the cross rod is coaxially and fixedly sleeved with a driving gear, and the driving gear is meshed with the toothed plate; the device further comprises a driving mechanism which is used for driving the transverse rod to rotate. According to the equipment, the spacing distance between the jacking wheel and the base can be adjusted, so that the height of the cutting wheel can be adjusted, the joint cutting depth is changed, and the cutting process is stable and accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of road and bridge construction equipment, and specifically relates to a seam cutting device for road and bridge construction. Background Art

[0002] Road bridge joints, also known as concrete pavement shrinkage joints, refer to transverse false joints that do not penetrate the pavement slabs to ensure that the cement concrete pavement slabs will not produce irregular cracks due to shrinkage during the hardening process or when the temperature drops, so that the pavement will not crack due to deformation when it expands due to heat or contracts due to cold.

[0003] In the prior art, after the concrete road is poured, the road surface is often cut by a slitting device, but the existing slitting device cannot accurately adjust the slitting depth, which is not conducive to extending the service life of the concrete road surface. In addition, the existing slitting device consumes a large amount of water when slitting, which will waste a lot of water resources, and needs to be added with water many times, affecting work efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a slit cutting device for road and bridge construction, which can accurately control the slit cutting depth.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a seam cutting device for road and bridge construction, comprising a base, a motor mounted on the base, a cutting wheel coaxially fixed to the power output end of the motor;

[0006] A roller group is installed on the side of the bottom of the base away from the cutting wheel, and a top support rod is installed on the side of the bottom of the base close to the cutting wheel. The bottom end and the rear side of the top support rod are both open, and a sliding sleeve in the top support rod is provided with a toothed plate, and the serrations of the toothed plate protrude from the opening on the rear side of the top support rod. The bottom end of the toothed plate extends to the bottom of the top support rod and is provided with a top support wheel. A cross bar is rotatably installed on the bottom of the base, and a coaxial fixed sleeve on the outer side of the cross bar is provided with a driving gear, and the driving gear is meshed with the toothed plate; it also includes a driving mechanism, and the driving mechanism is used to drive the cross bar to rotate.

[0007] Preferably, the outer side cover of the cutting wheel is provided with a shell cover, and the shell cover is mounted on the base.

[0008] Preferably, a water tank is installed on the base, a conduit is connected to one side of the water tank, and the conduit extends from one end away from the water tank to the inside of the shell.

[0009] Preferably, the bottom of the shell cover is connected to a collecting tank, one side of the collecting tank is connected to a water collecting pipe, and the water collecting pipe extends away from one end of the collecting tank to above the water tank inlet.

[0010] Preferably, a water pump is provided on the water collecting pipe.

[0011] Preferably, a filter screen is provided at the inlet of the water tank.

[0012] Preferably, a bracket is installed on the base, a slide rail is fixed on the bracket, a slider is slidably fitted in the slide rail, a push rod is fixedly connected to the slider, a locking screw hole is provided on the side wall of the slide rail, a locking screw is threaded in the locking screw hole, and the inner end of the locking screw abuts against the side wall of the slider.

[0013] Preferably, handles are fixed at both ends of the push rod.

[0014] Preferably, the driving mechanism includes a driving connecting rod, a vertical rod, a first bevel gear, a second bevel gear, a third bevel gear, and a fourth bevel gear. The driving connecting rod is rotatably mounted on the bottom of the base, the first bevel gear is coaxially fixedly sleeved on the outside of the cross rod, the third bevel gear and the fourth bevel gear are both coaxially fixedly sleeved on the outside of the driving connecting rod, the third bevel gear is meshed with the first bevel gear, the vertical rod is rotatably mounted on the base, the second bevel gear is coaxially fixedly sleeved on the vertical rod, the fourth bevel gear is meshed with the second bevel gear, the top end of the vertical rod extends to above the base, and a rotating disk is coaxially fixed to the top end of the vertical rod.

[0015] Preferably, a limiting plate with a screw hole is installed on the base, a limiting rod is screwed into the screw hole of the limiting plate, and the limiting rod is inserted into the gap of the rotating disk.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model provides a slitting device for road and bridge construction, which can drive the cross bar to rotate through a driving mechanism, and then adjust the extension length of the rack at the bottom of the top support rod, that is, the spacing distance between the top support wheel and the base, so that the height of the cutting wheel can be adjusted, the slitting depth can be changed, and the cutting process is smooth and accurate.

[0018] 2. The utility model provides a seam cutting device for road and bridge construction. After the locking screw is unscrewed and the push rod is moved to a suitable position, the locking screw is screwed in again to abut against the side of the slider to fix the push rod. The handle can be adjusted to the optimal position according to the height of the pusher.

[0019] 3. The utility model provides a kind of cutting equipment for road and bridge construction, in which a collecting trough is placed on one side of a shell cover. When the cutting wheel rotates, water is supplied to the inside of the shell cover through a conduit on the water tank. The water supply is used to cool the cutting wheel. As the cutting wheel rotates, the cooling water is driven to splash along the direction of rotation. After the water touches the shell cover, it is blocked and falls. Part of the water will flow along the shell cover to the collecting trough, and then be recovered into the water tank, so that the water resource can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a slitting device for road and bridge construction provided by an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of a slitting device for road and bridge construction provided by an embodiment of the utility model;

[0022] Figure 3 A schematic diagram of the three-dimensional structure of the bottom of a base of a slitting device for road and bridge construction provided by an embodiment of the utility model;

[0023] Figure 4 A schematic diagram of the three-dimensional structure of a slitting device for road and bridge construction provided by an embodiment of the utility model;

[0024] Figure 5 A schematic front view of the structure of a slitting device for road and bridge construction provided in an embodiment of the utility model.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Base; 2. Motor; 3. Cutting wheel; 4. Shell; 5. Water tank; 7. Roller assembly; 8. Top support rod; 9. Tooth plate; 10. Top support wheel; 11. Collecting tank; 12. Bracket; 13. Slide rail; 14. Push rod; 15. Handle; 16. Locking screw; 17. Driving gear; 18. Cross bar; 19. First bevel gear; 20. Driving connecting rod; 21. Second bevel gear; 22. Vertical rod; 23. Rotating disk; 24. Water collecting pipe; 25. Water pump; 27. Filter; 28. Third bevel gear; 29. ​​Fourth bevel gear; 30. Limit plate; 31. Limit rod. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with specific embodiments so that those skilled in the art can understand the present invention more clearly.

[0028] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0029] like Figure 1 As shown, this embodiment provides a seam cutting device for road and bridge construction, including a base 1, a motor 2 installed on the base 1, and a cutting wheel 3 coaxially fixed to the power output end of the motor 2.

[0030] like Figure 2-3 As shown, two roller groups 7 are installed on the bottom side of the base 1 away from the cutting wheel 3, and a top support rod 8 is installed on the bottom side of the base 1 close to the cutting wheel 3. The bottom end and the rear side of the top support rod 8 are open, and a tooth plate 9 is provided in the sliding sleeve of the top support rod 8. The serrations of the tooth plate 9 protrude from the rear opening of the top support rod 8. The bottom end of the tooth plate 9 extends to the bottom of the top support rod 8 and is installed with a top support wheel 10. A cross bar 18 is rotatably installed at the bottom of the base 1, and a driving gear 17 is provided on the coaxial fixed sleeve outside the cross bar 18, and the driving gear 17 is meshed with the tooth plate 9; it also includes a driving mechanism, and the driving mechanism is used to drive the cross bar 18 to rotate.

[0031] The driving mechanism may be a rotating motor, the power output end of which is coaxially fixed to the cross bar 18, and the cross bar 18 can be driven to rotate by the rotating motor. When the rotating motor stops, its internal brake prevents the cross bar 18 from rotating.

[0032] In summary, the driving mechanism can directly drive the cross bar 18 to rotate, driving the driving gear 17 to rotate synchronously, and since the driving gear 17 is meshed with the tooth plate 9, the tooth plate 9 can be driven to slide up and down along the top support rod 8. After sliding a certain distance, the driving mechanism is stopped, and the cross bar 18 remains fixed and cannot rotate freely. At this time, the relative position of the tooth plate 9 and the top support rod 8 changes, and the spacing distance between the top support wheel 10 and the base 1 changes.

[0033] In this embodiment, the position distribution of the three wheels is similar to that of a tricycle, and when the distance between the front wheel and the base 1 changes, the base 1 tilts, and the height of the cutting wheel 3 also changes. In other words, by driving the cross bar 18 to rotate through the driving mechanism, the height of the cutting wheel 3 can be adjusted, thereby changing the cutting depth.

[0034] like Figure 4As shown, in this embodiment, the outer side of the cutting wheel 3 is covered with a shell cover 4, and the shell cover 4 is installed on the base 1. The shell cover 4 can play a protective role.

[0035] A water tank 5 is installed on the base 1 , and a conduit is connected to one side of the water tank 5 . The conduit extends to the interior of the shell 4 away from one end of the water tank 5 .

[0036] The conduit may be provided with a water pump, and the water in the water tank 5 may flow to the inside of the housing 4 through the conduit, so as to cool the cutting wheel 3 .

[0037] The bottom of the housing 4 is connected to a collecting tank 11, and one side of the collecting tank 11 is connected to a water collecting pipe 24. The water collecting pipe 24 extends to the top of the inlet of the water tank 5 at one end away from the collecting tank 11. A water pump 25 is provided on the water collecting pipe 24.

[0038] The collecting trough 11 is placed on the side of the shell cover 4 close to the water tank 5. When the cutting wheel 3 rotates, water is supplied to the inside of the shell cover 4 through the conduit on the water tank 5. The water supply is used to cool the cutting wheel 3. As the cutting wheel 3 rotates, the cooling water is splashed along the direction of rotation. After the water touches the shell cover 4, it is blocked and falls. Part of the water flows along the shell cover 4 to the collecting trough 11, and then is recovered into the water tank 5, so that the water resources can be reused.

[0039] A filter screen 27 is provided at the inlet of the water tank 5 to filter the recycled water.

[0040] Please refer again Figure 1 In this embodiment, a bracket 12 is installed on the water tank 5, a slide rail 13 is fixed on the bracket 12, a slider is slidably fitted in the slide rail 13, a push rod 14 is fixedly connected to the slider, a locking screw hole is provided on the side wall of the slide rail 13, a locking screw 16 is threaded in the locking screw hole, and the inner end of the locking screw 16 abuts against the side wall of the slider.

[0041] Handles 15 are fixed at both ends of the push rod 14 .

[0042] The locking screw 16 is unscrewed, the push rod 14 is moved to a suitable position, and the locking screw 16 is screwed in again to abut against the side of the slider to fix the push rod 14. The handle 15 can be adjusted to the optimal position according to the height of the pusher.

[0043] Please refer again Figure 3In this embodiment, the driving mechanism includes a driving connecting rod 20, a vertical rod 22, a first bevel gear 19, a second bevel gear 21, a third bevel gear 28, and a fourth bevel gear 29. The driving connecting rod 20 is rotatably mounted on the bottom of the base 1. The first bevel gear 19 is coaxially fixedly sleeved on the outside of the cross bar 18. The third bevel gear 28 and the fourth bevel gear 29 are both coaxially fixedly sleeved on the outside of the driving connecting rod 20. The third bevel gear 28 is meshed with the first bevel gear 19. The vertical rod 22 is rotatably mounted on the base 1. The second bevel gear 21 is coaxially fixedly sleeved on the vertical rod 22. The fourth bevel gear 29 is meshed with the second bevel gear 21. The top end of the vertical rod 22 extends above the base 1. A rotating disk 23 is coaxially fixed to the top end of the vertical rod 22.

[0044] By rotating the rotating disk 23, the vertical rod 22 and the second bevel gear 21 are driven to rotate. Since the fourth bevel gear 29 is meshed with the second bevel gear 21, the fourth bevel gear 29 can be driven to rotate, and the driving connecting rod 20 and the third bevel gear 28 can be driven to rotate. Since the third bevel gear 28 is meshed with the first bevel gear 19, the first bevel gear 19 can be driven to rotate, and the cross bar 18 can be driven to rotate, so that the height of the cutting wheel 3 can be adjusted.

[0045] like Figure 5 As shown, a limit plate 30 with a screw hole is installed on the side wall of the water tank 5, and a limit rod 31 is screwed into the screw hole of the limit plate 30, and the limit rod 31 is inserted into the gap of the rotating disk 23. By rotating the limit rod 31, the limit rod 31 is inserted into the gap of the rotating disk 23, the rotating disk 23 can be limited to prevent the rotating disk 23 from rotating, which can play the role of locking the cross bar 18.

[0046] The mechanisms, components and parts not specifically described in the present invention are all existing structures in the prior art and can be directly purchased from the market.

[0047] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0048] The above is only a preferred embodiment of the utility model, and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A seam cutting device for road and bridge construction, characterized in that: It comprises a base (1), a motor (2) mounted on the base (1), and a cutting wheel (3) is coaxially fixed to the power output end of the motor (2); A roller group (7) is installed on the side of the bottom of the base (1) away from the cutting wheel (3), and a top support rod (8) is installed on the side of the bottom of the base (1) close to the cutting wheel (3). The bottom end and rear side of the top support rod (8) are both open. A tooth plate (9) is provided in a sliding sleeve inside the top support rod (8). The saw teeth of the tooth plate (9) protrude from the rear opening of the top support rod (8). The bottom end of the tooth plate (9) extends to the bottom of the top support rod (8) and is installed with a top support wheel (10). A cross bar (18) is rotatably installed at the bottom of the base (1). A driving gear (17) is provided on the coaxial fixed sleeve outside the cross bar (18). The driving gear (17) is meshed with the tooth plate (9); and a driving mechanism is also included. The driving mechanism is used to drive the cross bar (18) to rotate.

2. A seam cutting device for road and bridge construction according to claim 1, characterized in that: The outer side of the cutting wheel (3) is covered with a shell cover (4), and the shell cover (4) is mounted on the base (1).

3. A seam cutting device for road and bridge construction according to claim 2, characterized in that: A water tank (5) is mounted on the base (1), one side of the water tank (5) is connected to a conduit, and one end of the conduit away from the water tank (5) extends to the interior of the shell (4).

4. A seam cutting device for road and bridge construction according to claim 3, characterized in that: The bottom of the shell (4) is connected to a collecting tank (11), one side of the collecting tank (11) is connected to a water collecting pipe (24), and the water collecting pipe (24) extends from one end of the collecting tank (11) to above the inlet of the water tank (5).

5. A seam cutting device for road and bridge construction according to claim 4, characterized in that: The water collecting pipe (24) is provided with a water pump (25).

6. A seam cutting device for road and bridge construction according to claim 4, characterized in that: A filter screen (27) is provided at the inlet of the water tank (5).

7. The seam cutting equipment for road and bridge construction according to claim 1 is characterized in that: A bracket (12) is mounted on the base (1), a slide rail (13) is fixed on the bracket (12), a slider is slidably fitted in the slide rail (13), the slider is fixedly connected to a push rod (14), a locking screw hole is provided on the side wall of the slide rail (13), a locking screw (16) is threaded in the locking screw hole, and the inner end of the locking screw (16) abuts against the side wall of the slider.

8. A seam cutting device for road and bridge construction according to claim 7, characterized in that: Handles (15) are fixed at both ends of the push rod (14).

9. A seam cutting device for road and bridge construction according to claim 1, characterized in that: The driving mechanism comprises a driving connecting rod (20), a vertical rod (22), a first bevel gear (19), a second bevel gear (21), a third bevel gear (28), and a fourth bevel gear (29); the driving connecting rod (20) is rotatably mounted on the bottom of the base (1); the first bevel gear (19) is coaxially fixedly sleeved on the outside of the cross rod (18); the third bevel gear (28) and the fourth bevel gear (29) are both coaxially fixedly sleeved on the outside of the driving connecting rod (20); the third bevel gear (28) meshes with the first bevel gear (19); the vertical rod (22) is rotatably mounted on the base (1); the second bevel gear (21) is coaxially fixedly sleeved on the vertical rod (22); the fourth bevel gear (29) meshes with the second bevel gear (21); the top end of the vertical rod (22) extends above the base (1); and a rotating disk (23) is coaxially fixed to the top end of the vertical rod (22).

10. A seam cutting device for road and bridge construction according to claim 9, characterized in that: A limiting plate (30) with a screw hole is installed on the base (1), a limiting rod (31) is screwed into the screw hole of the limiting plate (30), and the limiting rod (31) is inserted into the gap of the rotating disk (23).

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