Joint cutting device for bridge construction

Abstract

The utility model belongs to the technical field of bridge construction, and particularly relates to a joint cutting device for bridge construction, which comprises a moving vehicle for moving the joint cutting device, a joint cutting depth adjusting component arranged on the moving vehicle, and a joint cutting distance adjusting component arranged on the joint cutting depth adjusting component, a left joint cutting mechanism and a right joint cutting mechanism are arranged on the joint cutting distance adjusting assembly, the left joint cutting mechanism and the right joint cutting mechanism are driven to get close to each other or get away from each other through the joint cutting distance adjusting assembly, then different distances between the left joint cutting mechanism and the right joint cutting mechanism are adjusted, joint cutting operation of different joint widths is facilitated, and flexibility is higher; cutting operation of different depths can be conveniently conducted, double-joint cutting operation is conducted on the bridge through the left joint cutting mechanism and the right joint cutting mechanism, expansion joint cutting forming can be completed through joint cutting, and the joint cutting efficiency is higher.

Description

Technical Field

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

[0002] Road bridges are generally composed of several parts, such as roadbed, pavement, bridge, tunnel engineering and traffic engineering facilities. In the process of building roads and bridges, it is necessary to cut the pavement; expansion joints are structures specially reserved when building highway bridges, mainly to prevent factors such as temperature changes from affecting the safety of highway bridges and to avoid cracks in the pavement caused by thermal expansion and contraction; when cutting expansion joints, it is required that the expansion joints can be freely expanded and contracted in two directions parallel and perpendicular to the axis of the bridge, and be firm and reliable. When vehicles pass by, they should be smooth without sudden jumps and noises; they should be able to prevent rainwater and garbage soil from infiltrating and blocking; installation, inspection, maintenance and removal of dirt should be simple and convenient;

[0003] Existing slitting devices mostly use a single slitting piece structure, and the width of each slitting is only the thickness of the slitting piece. However, in the construction of general expansion joints, the width of the expansion joint is generally 20 mm to 30 mm. This requires a single slitting piece cutting machine to cut multiple times before the expansion joint can be cut into shape, and the overall slitting efficiency is low. Utility Model Content

[0004] To solve the problems raised in the above background technology. The utility model provides a bridge construction slitting device, including a mobile vehicle for moving the slitting device, a slitting depth adjustment component arranged on the mobile vehicle, and a slitting spacing adjustment component arranged on the slitting depth adjustment component, wherein the slitting spacing adjustment component is provided with a left slitting mechanism and a right slitting mechanism;

[0005] The slit spacing adjustment component comprises a U-shaped support fixed to the slit depth adjustment component, a rotating rod and a pair of guide rods for guiding are arranged between the left and right ends of the U-shaped support through bearings.

[0006] As a bridge construction cutting device of the utility model, preferably, the left and right ends of the rotating rod are respectively provided with external threads with opposite thread directions, and the two ends of the rotating rod are respectively screwed with a left support and a right support, and the left support and the right support are respectively fixedly connected to the left cutting mechanism and the right cutting mechanism.

[0007] As a bridge construction seam cutting device of the utility model, preferably, the left support and the right support are both sleeved on the guide rod, and the left support and the right support both slide left and right on the guide rod.

[0008] As a bridge construction cutting device of the utility model, preferably, a reduction motor is installed at the right end of the U-shaped support, and the rotor of the reduction motor is fixedly connected to the rotating rod.

[0009] As a bridge construction cutting device of the utility model, preferably, the cutting depth adjustment component includes a pair of sliding rods inserted on the moving vehicle, and a screw rod screwed on the moving vehicle, a rotating handle is fixed on the top of the screw rod, the bottom end of the sliding rod is fixed on the top of the U-shaped support, and the bottom end of the screw rod is movably arranged on the top of the U-shaped support through a bearing.

[0010] As a bridge construction slitting device of the utility model, preferably, the left slitting mechanism and the right slitting mechanism have the same structure size and are symmetrically arranged.

[0011] As a bridge construction cutting device of the utility model, preferably, the left cutting mechanism includes a bracket fixed on the left support, a motor and a bearing seat are fixed on the bracket, a rotating shaft is movably arranged on the bearing seat, a cutting blade is fixed to the left end of the rotating shaft, and a driven wheel is fixed to the right end thereof.

[0012] As a bridge construction seam cutting device of the utility model, preferably, a driving wheel is fixed on the rotor of the motor, and the driving wheel is connected to the driven wheel through a belt.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Drive the reduction motor to drive the rotating rod to rotate. Since the threads at both ends of the rotating rod are in opposite directions, and the left support and the right support are respectively screwed on the threads in different directions at both ends of the rotating rod, the rotation of the rotating rod drives the left support and the right support to move in opposite directions, thereby driving the left slitting mechanism and the right slitting mechanism to move closer or farther from each other, thereby adjusting the different spacing between the two, which is convenient for slitting operations with different slit widths, and has greater flexibility;

[0015] 2. The screw rod is driven to rotate by rotating the rotary handle. Since both ends of the slit spacing adjustment component are limited by the slide rod, the rotation of the screw rod causes it to move up and down on the mobile vehicle, thereby adjusting the pressing depth of the left slit mechanism and the right slit mechanism, which is convenient for cutting operations of different depths;

[0016] 3. Double slitting operation is performed on the bridge through the left slitting mechanism and the right slitting mechanism, so that the expansion joint cutting and forming can be completed with higher slitting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 This is a front view structural diagram of the slit spacing adjustment component of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the slit spacing adjustment component of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the left slitting mechanism of the utility model;

[0023] Figure 6 It is a left view structural schematic diagram of the left slitting mechanism of the utility model;

[0024] In the figure:

[0025] 1. Mobile car; 2. Slit depth adjustment assembly; 21. Slide rod; 22. Screw rod; 23. Rotating handle; 3. Slit spacing adjustment assembly; 31. U-shaped support; 32. Rotating rod; 33. Guide rod; 34. Left support; 35. Right support; 36. Reducer motor; 4. Left slit mechanism; 41. Bracket; 42. Motor; 43. Bearing seat; 44. Rotating shaft; 45. Cutting disc; 46. Driven wheel; 47. Driving wheel; 48. Belt; 5. Right slit mechanism. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] like Figure 1 As shown;

[0029] A bridge construction slot cutting device comprises a moving vehicle 1 for moving the slot cutting device.

[0030] In the present embodiment: in order to solve the technical problems existing in the prior art, as disclosed in the background technology above, "the existing slitting devices mostly adopt a single slitting sheet structure, and the width of each slitting is only the thickness of the slitting sheet. However, in the construction of general expansion joints, the width of the expansion joints is generally 20 mm to 30 mm, which requires the slitting machine with a single slitting sheet to cut multiple times before the expansion joints can be cut into shape, and the overall slitting efficiency is low." Combined with actual use, this problem is obviously a real problem that is difficult to solve. In view of this, in order to solve this technical problem, a slitting depth adjustment component 2 and a slitting spacing adjustment component 3 are added on this basis.

[0031] like Figure 1-6 As shown in the figure;

[0032] In combination with the above content, in order to improve the slitting efficiency, it also includes a slitting depth adjustment component 2 arranged on the mobile vehicle 1, and a slitting spacing adjustment component 3 arranged on the slitting depth adjustment component 2, and the slitting spacing adjustment component 3 is provided with a left slitting mechanism 4 and a right slitting mechanism 5;

[0033] The slit spacing adjustment component 3 includes a U-shaped support 31 fixed to the slit depth adjustment component 2, and a rotating rod 32 and a pair of guide rods 33 for guiding are arranged between the left and right ends of the U-shaped support 31 through bearings.

[0034] In an optional embodiment, the left and right ends of the rotating rod 32 are respectively provided with external threads with opposite thread directions, and the two ends of the rotating rod 32 are respectively screwed with a left support 34 and a right support 35, the left support 34 and the right support 35 are respectively fixedly connected to the left slitting mechanism 4 and the right slitting mechanism 5, the left support 34 and the right support 35 are both sleeved on the guide rod 33, and the left support 34 and the right support 35 both slide left and right on the guide rod 33, and a reduction motor 36 is installed at the right end of the U-shaped support 31, and the rotor of the reduction motor 36 is fixedly connected to the rotating rod 32.

[0035] In this embodiment: the reduction motor 36 is driven to drive the rotating rod 32 to rotate. Since the threads at both ends of the rotating rod 32 are in opposite directions, and the left support 34 and the right support 35 are respectively screwed on the threads in different directions at both ends of the rotating rod 32, the rotation of the rotating rod 32 drives the left support 34 and the right support 35 to move in opposite directions, thereby driving the left slitting mechanism 4 and the right slitting mechanism 5 to move closer to or away from each other, and then adjusting the different distances between the two, which is convenient for slitting operations with different slit widths, and has greater flexibility.

[0036] In an optional embodiment, the cutting depth adjustment component 2 includes a pair of sliding rods 21 inserted into the moving vehicle 1, and a screw rod 22 screwed onto the moving vehicle 1, a rotating handle 23 is fixed to the top of the screw rod 22, the bottom end of the sliding rod 21 is fixed to the top of the U-shaped support 31, and the bottom end of the screw rod 22 is movably arranged on the top of the U-shaped support 31 through a bearing.

[0037] In the present embodiment: the screw rod 22 is driven to rotate by rotating the rotating handle 23. Since the two ends of the slit spacing adjustment component 3 are limited by the sliding rod 21, the rotation of the screw rod 22 causes it to move up and down on the mobile vehicle 1, thereby adjusting the downward pressing depth of the left slit mechanism 4 and the right slit mechanism 5, so as to facilitate cutting operations of different depths.

[0038] In an optional embodiment, the left slitting mechanism 4 and the right slitting mechanism 5 have the same structure and size, and are symmetrically arranged on the left and right sides. The left slitting mechanism 4 includes a bracket 41 fixed on the left support 34, a motor 42 and a bearing seat 43 are fixed on the bracket 41, a rotating shaft 44 is movably arranged on the bearing seat 43, a cutting blade 45 is fixed to the left end of the rotating shaft 44, and a driven wheel 46 is fixed to the right end thereof, a driving wheel 47 is fixed to the rotor of the motor 42, and the driving wheel 47 and the driven wheel 46 are connected by a belt 48.

[0039] In this embodiment: a double slitting operation is performed on the bridge by using the left slitting mechanism 4 and the right slitting mechanism 5, so that the expansion joint cutting and forming can be completed by this slitting, and the slitting efficiency is higher.

[0040] Working principle of this utility model:

[0041] According to the needs, the reduction motor 36 is driven to drive the rotating rod 32 to rotate. Since the threads at the two ends of the rotating rod 32 are in opposite directions, and the left support 34 and the right support 35 are respectively screwed on the threads in different directions at the two ends of the rotating rod 32, the rotation of the rotating rod 32 drives the left support 34 and the right support 35 to move in opposite directions, thereby driving the left slitting mechanism 4 and the right slitting mechanism 5 to move closer or farther from each other, thereby adjusting the different spacings between the two, and driving the screw rod 22 to rotate by rotating the rotating handle 23. Since the two ends of the slitting spacing adjustment component 3 are limited by the sliding rod 21, the rotation of the screw rod 22 causes it to move up and down on the moving vehicle 1, thereby adjusting the pressing depth of the left slitting mechanism 4 and the right slitting mechanism 5, so as to facilitate cutting operations of different depths.

[0042] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bridge construction slot cutting device, comprising a moving vehicle (1) for moving the slot cutting device, characterized in that: It also comprises a slit depth adjustment component (2) arranged on the mobile vehicle (1), and a slit spacing adjustment component (3) arranged on the slit depth adjustment component (2), wherein the slit spacing adjustment component (3) is provided with a left slit mechanism (4) and a right slit mechanism (5); The slit spacing adjustment component (3) comprises a U-shaped support (31) fixed to the slit depth adjustment component (2); a rotating rod (32) and a pair of guide rods (33) are arranged between the left and right ends of the U-shaped support (31) via bearings; the left and right ends of the rotating rod (32) are respectively provided with external threads with opposite thread directions; and the two ends of the rotating rod (32) are respectively screwed with a left support (34) and a right support (35); the left support (34) and the right support (35) are respectively fixedly connected to the left slit mechanism (4) and the right slit mechanism (5); the left support (34) and the right support (35) are both sleeved on the guide rod (33); and the left support (34) and the right support (35) slide left and right on the guide rod (33).

2. A bridge construction cutting device according to claim 1, characterized in that: A reduction motor (36) is installed at the right end of the U-shaped support (31), and the rotor of the reduction motor (36) is fixedly connected to the rotating rod (32).

3. A bridge construction cutting device according to claim 1, characterized in that: The slit depth adjustment assembly (2) comprises a pair of slide bars (21) plugged into the moving vehicle (1), and a screw rod (22) screwed onto the moving vehicle (1), a rotating handle (23) being fixed to the top of the screw rod (22), a bottom end of the slide bar (21) being fixed to the top of a U-shaped support (31), and a bottom end of the screw rod (22) being movably arranged on the top of the U-shaped support (31) via a bearing.

4. A bridge construction cutting device according to claim 1, characterized in that: The left slitting mechanism (4) and the right slitting mechanism (5) have the same structure and size, and are arranged symmetrically on the left and right.

5. A bridge construction cutting device according to claim 1, characterized in that: The left slitting mechanism (4) comprises a bracket (41) fixed on the left support (34), a motor (42) and a bearing seat (43) being fixed on the bracket (41), a rotating shaft (44) being movably arranged on the bearing seat (43), a cutting blade (45) being fixed on the left end of the rotating shaft (44), and a driven wheel (46) being fixed on the right end thereof.

6. A bridge construction cutting device according to claim 5, characterized in that: A driving wheel (47) is fixed on the rotor of the motor (42), and the driving wheel (47) is connected to a driven wheel (46) via a belt (48).

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