Joint cutter for road construction

By adjusting the height of the cutting assembly and the spray pipe synchronously with the electric push rod, the problems of damaged motor wires and non-adjustable water spray direction are solved, achieving stable operation of the cutting machine and efficient dust reduction.

CN224047879UActive Publication Date: 2026-03-27武安市市政公用设施维护服务中心
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing road cutting machines often suffer from easily damaged motors and wiring, and the water spray direction of the water pipes cannot be adjusted, affecting equipment operation and dust suppression effectiveness.

Method used

The height of the cutting assembly is adjusted by an electric push rod, and the spray pipe and the cutting wheel are raised and lowered synchronously to ensure that the water spray direction is aligned with the cutting position. The rotation speed of the cutting wheel is increased by the meshing of the small gear and the large gear.

Benefits of technology

To avoid damage to the motor wires, improve the stability and efficiency of the cutting, and ensure dust reduction and safe operation of the cutting wheel.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224047879U_ABST
    Figure CN224047879U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of road construction, and particularly relates to a joint cutter for road construction, which comprises a base, a controller and a storage battery, an outer cover is fixed at the rear upper part of the left end of the base, the controller is fixedly mounted on the outer wall of the front end of the top of the outer cover, and a driving motor is fixed on the inner wall of the rear end of the outer cover; a supporting plate is fixed to the inner wall of the left end of the outer cover, a transverse shaft is installed in the supporting plate through a bearing, a large gear is fixed to the front end of the transverse shaft, the rear end of the transverse shaft is fixedly connected with an output shaft of the driving motor, and a joint cutting assembly is arranged on the right side of the large gear; a storage battery is fixedly installed on the front upper portion of the left end of the base, and a water tank is fixedly arranged on the right upper portion of the base. In the joint cutting process, water can be accurately sprayed to the position between the cutting wheel and the ground, the dust falling effect is better, water cooling can be provided for the cutting wheel rotating at a high speed, and safe and stable work and operation of the cutting wheel are guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model belongs to road construction technical field, especially a kind of joint cutter for road construction. BACKGROUND

[0002] In the process of road construction, joint cutting is a crucial step, by cutting certain interval gap on concrete pavement, can let pavement have certain expansion space when subjected to external force, to avoid crack and deformation caused by temperature change, earthquake vibration and other reasons, ensure the flatness and strength of pavement, joint cutting machine is needed in the process of road joint cutting construction

[0003] In the Chinese utility model patent with the announcement number CN222575227U, a kind of joint cutter for road construction is disclosed, dust is handled in the form of water spraying dust reduction by dust reduction mechanism, and the stone and other impurities washed on the road surface are cleaned, then the water after spraying is gathered by circulation assembly and the water source after use is pumped and filtered, is recycled, reduce the influence of dust in environment on staff, ensure that the road surface is clean, improve the utilization of water source.

[0004] Through search and combining with actual joint cutting work experience, it is found that the above device still has some defects and deficiencies in joint cutting construction: in the above scheme, motor is synchronous with joint cutting disc to lift, the wire of motor is easily damaged by pulling, affect normal operation of equipment, and the height of water jet pipe is constant and cannot be adjusted, when joint cutting disc is lowered to carry out road joint cutting, the water jet direction of water jet pipe cannot be aligned with ground joint cutting position, affect dust reduction effect. Therefore, it is urgent to improve existing road joint cutter, provide a kind of joint cutter for road construction. UTILITY MODEL CONTENTS

[0005] The utility model aims at the deficiencies in prior art, provide a kind of joint cutter for road construction with reasonable design, simple structure, stable joint cutting construction, and better dust reduction effect, to solve the problems in prior art.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model provides a cutting machine for road construction, it includes the base, controller and battery, the left end rear upper side of base is fixed with the outer cover, the top front end outer wall of outer cover is fixedly installed with the controller, the rear end inner wall of outer cover is fixed with drive motor, the left end inner wall of outer cover is fixed with the support plate, the inside bearing of support plate is installed with the cross shaft, the front end of cross shaft is fixed with the big gear, the rear end of cross shaft is fixedly connected with the output shaft of drive motor, the right side of big gear is equipped with the cutting assembly, the rear of cutting assembly is equipped with the spray assembly, the left end front upper side of base is fixedly installed with the battery, the right upper side of base is equipped with the water tank, the top of water tank is fixedly installed with the water pump, the input of water pump is fixedly connected with the water suction pipe, the other end of water suction pipe extends to the inner bottom of water tank.

[0008] As a preferred implementation form, the cutting assembly comprises connecting rods, a fixed shaft, a sleeve, a pinion and a cutting wheel, the number of the connecting rods is two, the two connecting rods are parallel to each other and the fixed shaft is fixed between the right ends of the two connecting rods, the sleeve is sleeved on the outer side of the middle part of the fixed shaft, the pinion and the cutting wheel are fixedly sleeved on the outer side of the sleeve, and the cutting wheel is located directly in front of the pinion.

[0009] As a preferred implementation form, the outer side of the middle part of the fixed shaft is sleeved with the sleeve, the outer side of the sleeve is fixedly sleeved with the pinion and the cutting wheel, and the cutting wheel is located directly in front of the pinion.

[0010] As a preferred implementation form, the outer side of the middle part of the fixed shaft is sleeved with the sleeve, the outer side of the sleeve is fixedly sleeved with the pinion and the cutting wheel, and the cutting wheel is located directly in front of the pinion.

[0011] As a preferred implementation form, the outer side of the middle part of the fixed shaft is sleeved with the sleeve, the outer side of the sleeve is fixedly sleeved with the pinion and the cutting wheel, and the cutting wheel is located directly in front of the pinion.

[0012] As a preferred implementation form, the outer side of the middle part of the fixed shaft is sleeved with the sleeve, the outer side of the sleeve is fixedly sleeved with the pinion and the cutting wheel, and the cutting wheel is located directly in front of the pinion.

[0013] As a preferred implementation form, the outer side of the middle part of the fixed shaft is sleeved with the sleeve, the outer side of the sleeve is fixedly sleeved with the pinion and the cutting wheel, and the cutting wheel is located directly in front of the pinion.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] In the scheme of the utility model,

[0016] The electric push rod can push the joint cutting assembly to rotate around the horizontal shaft, the height of the cutting wheel from the ground can be adjusted, the different depth joint cutting requirements of the road can be met, when the joint cutting assembly rotates and adjusts, the pinion can always mesh with the gear, the driving motor is fixed, the height adjustment can avoid the pulling damage of the driving motor wire, because the diameter of the pinion is only one third of the diameter of the gear, when the driving motor controls the gear to drive the pinion, the sleeve and the cutting wheel rotate, the rotation speed of the cutting wheel can be effectively improved, the joint cutting is more stable and efficient,

[0017] During the control of the rotation and adjustment of the joint cutting assembly, the supporting rod which is equal in length with the connecting rod and always in parallel state is used, the installation block and the spraying pipe can be conveniently controlled to synchronously ascend and descend with the cutting wheel, that is, the bottom inclined water spraying end of the spraying pipe can always face the bottom of the cutting wheel, so that during the joint cutting process, the water can be accurately sprayed between the cutting wheel and the ground, the dust falling effect is better, and the cutting wheel which rotates at high speed can be water cooled, the safe and stable operation of the cutting wheel is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and the drawings will be described as follows:

[0019] Figure 1 It is a perspective view structural schematic diagram of the utility model;

[0020] Figure 2 It is a front view cross-sectional structural schematic diagram of the water tank and the water pumping pipe of the utility model;

[0021] Figure 3 It is a right view cross-sectional structural schematic diagram of the cover and the driving motor of the utility model;

[0022] Figure 4 It is a whole top view structural schematic diagram of the joint cutting assembly of the utility model;

[0023] Figure 5 It is a whole rear view structural schematic diagram of the spraying assembly of the utility model;

[0024] Figure 6 It is a rear view structural schematic diagram of the joint cutting working state of the utility model.

[0025] In the drawings:

[0026] 1, base; 2, cover; 3, controller; 4, drive motor; 5, support plate; 6, cross shaft; 7, large gear; 8, joint cutting assembly; 81, connecting rod; 82, fixed shaft; 83, sleeve; 84, pinion; 85, cutting wheel; 9, spraying assembly; 91, support rod; 92, mounting block; 93, spraying pipe; 94, hose; 10, electric push rod; 11, indicator plate; 12, battery; 13, water tank; 14, water pump; 15, water suction pipe. DETAILED DESCRIPTION

[0027] The embodiments described below are only a part of the embodiments of the utility model, and do not represent all the embodiments consistent with the utility model. Now, the exemplary embodiments are described as follows in conjunction with the drawings:

[0028] As Figures 1-6 The utility model is used for the joint cutting machine of road construction, it includes base 1, controller 3 and battery 12, the left end rear upper portion of base 1 is fixed with cover 2, the top front end outer wall of cover 2 is fixedly installed with controller 3, the rear end inner wall of cover 2 is fixed with drive motor 4, the left end inner wall of cover 2 is fixed with support plate 5, the inside bearing of support plate 5 is installed with cross shaft 6, the front end of cross shaft 6 is fixed with large gear 7, the rear end of cross shaft 6 is fixedly connected with the output shaft of drive motor 4, the right side of large gear 7 is equipped with joint cutting assembly 8, the rear of joint cutting assembly 8 is equipped with spraying assembly 9, the left end front upper portion of base 1 is fixedly installed with battery 12, the right upper portion of base 1 is fixedly equipped with water tank 13, the top of water tank 13 is fixedly installed with water pump 14, the input end of water pump 14 is fixedly connected with water suction pipe 15, and the other end of water suction pipe 15 extends to the inner bottom of water tank 13.

[0029] On the basis of the above structure, joint cutting assembly 8 includes connecting rod 81, fixed shaft 82, sleeve 83, pinion 84 and cutting wheel 85, the number of connecting rod 81 is two, two connecting rods 81 are parallel to each other and the right ends of both are fixed with fixed shaft 82, the middle outer side bearing of fixed shaft 82 is sleeved with sleeve 83, the outer side of sleeve 83 is fixedly sleeved with pinion 84 and cutting wheel 85, and cutting wheel 85 is located in front of pinion 84.

[0030] On the basis of the above structure, the end of rear connecting rod 81 away from fixed shaft 82 is sleeved on the outer side of cross shaft 6, the end of front connecting rod 81 away from fixed shaft 82 is hinged to the front end inner wall of cover 2, the middle upper end of two connecting rods 81 is hinged with electric push rod 10, the top end of electric push rod 10 is hinged to the top inner wall of cover 2, drive motor 4, electric push rod 10, battery 12 and water pump 14 are electrically connected with controller 3.

[0031] In the embodiment, the electric push rod 10 is controlled to be telescopic, the cutting joint assembly 8 is facilitated to rotate around the horizontal shaft 6 as a whole, the ground clearance of the cutting wheel 85 is facilitated to be adjusted, and the different depth cutting joint requirements of the road are facilitated to be met.

[0032] On the basis of the above structure, the pinion 84 is connected with the gear wheel 7 in meshing, and the diameter length of the pinion 84 is only one third of the diameter length of the gear wheel 7.

[0033] In the embodiment, when the driving motor 4 is started to control the horizontal shaft 6 to drive the gear wheel 7 to rotate, the gear wheel 7 can drive the sleeve 83 and the cutting wheel 85 to rotate quickly through the pinion 84, the rotating speed of the cutting wheel 85 can be effectively improved, and the cutting joint efficiency is higher.

[0034] On the basis of the above structure, the left outer wall of the outer cover 2 is fixedly provided with an indication plate 11, and the indication plate 11 and the cutting wheel 85 are located on the same vertical plane.

[0035] In the embodiment, the indication plate 11 and the cutting wheel 85 are located on the same vertical plane, the operator is facilitated to judge the position of the cutting wheel 85, and the control device is facilitated to perform the road cutting joint work along the marked track.

[0036] On the basis of the above structure, the spraying assembly 9 comprises a supporting rod 91, a mounting block 92, a spraying pipe 93 and a hose 94, the supporting rod 91 is hingedly installed on the bottom rear outer wall of the supporting plate 5, the end, away from the supporting plate 5, of the supporting rod 91 is hingedly provided with the mounting block 92, the top end of the mounting block 92 is hingedly connected with the connecting rod 81, the right outer wall of the mounting block 92 is fixedly provided with the spraying pipe 93, the top end of the spraying pipe 93 is fixedly and communicatively provided with the hose 94, and the end, away from the spraying pipe 93, of the hose 94 is fixedly and communicatively connected with the output end of the water pump 14.

[0037] On the basis of the above structure, the supporting rod 91 is located obliquely below the rear connecting rod 81, the lengths of the two are equal and they are always in the parallel state, and the bottom of the spraying pipe 93 is obliquely arranged towards the cutting wheel 85.

[0038] In the embodiment, when the cutting joint assembly 8 is controlled to rotate and adjust, the supporting rod 91 which is equal in length with the connecting rod 81 and is always in the parallel state is used, the mounting block 92 and the spraying pipe 93 are facilitated to be controlled to rise and fall synchronously with the cutting wheel 85, that is, the bottom oblique water spraying end of the spraying pipe 93 can always be directed towards the bottom of the cutting wheel 85, the dust falling effect is better, and the high-speed rotating cutting wheel 85 can be water-cooled.

[0039] The working principle of the utility model is as follows:

[0040] In use, first, the water tank 13 is filled with water, then the indicating plate 11 in the same vertical plane as the cutting wheel 85 is used to determine the position of the cutting wheel 85, facilitate the pushing device to the designated position of the road, and make the cutting wheel 85 above the calibrated cutting seam position, then the driving motor 4 is started to control the fast rotation of the cross shaft 6 and the large gear 7, the large gear 7 can drive the sleeve 83 and the cutting wheel 85 to rotate through the small gear 84 engaged with the large gear 7, and since the diameter of the small gear 84 is only one third of the diameter of the large gear 7, the rotation speed of the cutting wheel 85 can be effectively improved, and the stability and smoothness of the subsequent cutting seam are improved, then the electric push rod 10 is controlled to extend and push the entire cutting assembly 8 to rotate downward around the cross shaft 6 as the center, the height of the cutting wheel 85 can be adjusted to meet the different depth cutting requirements of the road, and when the cutting assembly 8 is adjusted, the small gear 84 is always engaged with the large gear 7, and the driving motor 4 is fixed, so that the connection wire of the driving motor 4 is not pulled and damaged, and the stable operation of the device is ensured.

[0041] When the cutting assembly 8 is adjusted around the cross shaft 6, the support rod 91 which is equal in length to the connecting rod 81 and is always in parallel with the connecting rod 81 is used to control the mounting block 92 and the spray pipe 93 to rise and fall synchronously with the cutting wheel 85, that is, the bottom inclined water spraying end of the spray pipe 93 can always face the bottom of the cutting wheel 85, in the cutting process, the water pump 14 is started to send the water in the water tank 13 to the spray pipe 93 through the water suction pipe 15 and the hose 94, then the water is accurately sprayed between the cutting wheel 85 and the ground through the spray pipe 93, the dust removal effect is better, and the cutting wheel 85 rotating at high speed can be cooled, and the safe and stable operation of the cutting wheel 85 is ensured.

[0042] It should be particularly pointed out that the controller 3, the driving motor 4, the electric push rod 10, the storage battery 12 and the water pump 14 in the device are all existing electrical products, the specific circuit layout, power storage mode and control means are all mature prior art, and are not the key innovative direction of the case, so they are not described in detail.

[0043] The above is only a preferred embodiment of the present application, and does not limit the protection scope of the present application; any equivalent changes, modifications, replacements and variations made by logical analysis, reasoning or limited experiments on the basis of the prior art according to the concept of the present application should be within the protection scope determined by the claims.

Claims

1. A cutting machine for road construction, comprising a base (1), a controller (3), and a battery (12), characterized in that: An outer cover (2) is fixed to the upper left rear end of the base (1). A controller (3) is fixedly installed on the outer wall of the top front end of the outer cover (2). A drive motor (4) is fixed on the inner wall of the rear end of the outer cover (2). A support plate (5) is fixed to the inner wall of the left end of the outer cover (2). A horizontal shaft (6) is installed in the bearing inside the support plate (5). A large gear (7) is fixed to the front end of the horizontal shaft (6). The rear end of the horizontal shaft (6) is fixedly connected to the output shaft of the drive motor (4). A slitting assembly (8) is provided on the right side of the large gear (7), and a spraying assembly (9) is provided behind the slitting assembly (8). A storage battery (12) is fixedly installed on the upper left front of the base (1), and a water tank (13) is fixedly installed on the upper right of the base (1). A water pump (14) is fixedly installed on the top of the water tank (13), and a water pump (14) is fixedly connected to the input end of the water pump (14) via a water suction pipe (15). The other end of the water suction pipe (15) extends to the bottom of the water tank (13).

2. A cutting machine for road construction according to claim 1, characterized in that: The slit cutting assembly (8) includes a connecting rod (81), a fixed shaft (82), a sleeve (83), a pinion (84), and a cutting wheel (85). There are two connecting rods (81), which are parallel to each other and are fixedly connected to the right end of the two rods by a fixed shaft (82). The sleeve (83) is sleeved on the outer bearing of the middle part of the fixed shaft (82). The pinion (84) and the cutting wheel (85) are fixedly sleeved on the outer side of the sleeve (83). The cutting wheel (85) is located directly in front of the pinion (84).

3. A cutting machine for road construction according to claim 2, characterized in that: The rear connecting rod (81) is mounted on the outside of the horizontal shaft (6) with a bearing sleeve at one end away from the fixed shaft (82). The front connecting rod (81) is hinged to the inner wall of the front end of the outer cover (2) at one end away from the fixed shaft (82). Both connecting rods (81) are hinged to the upper middle part with an electric push rod (10). The top of the electric push rod (10) is hinged to the inner top of the outer cover (2). The drive motor (4), the electric push rod (10), the battery (12) and the water pump (14) are all electrically connected to the controller (3).

4. A cutting machine for road construction according to claim 3, characterized in that: The small gear (84) and the large gear (7) are meshed together, and the diameter of the small gear (84) is only one-third of the diameter of the large gear (7).

5. A cutting machine for road construction according to claim 4, characterized in that: An indicator plate (11) is fixedly provided on the left outer wall of the outer cover (2), and the indicator plate (11) and the cutting wheel (85) are both on the same vertical plane.

6. A cutting machine for road construction according to claim 5, characterized in that: The spray assembly (9) includes a support rod (91), a mounting block (92), a spray pipe (93), and a hose (94). The support rod (91) is hinged to the bottom rear outer wall of the support plate (5). The end of the support rod (91) away from the support plate (5) is hinged to the mounting block (92). The top end of the mounting block (92) is hinged to the connecting rod (81). The spray pipe (93) is fixedly installed on the right outer wall of the mounting block (92). The top end of the spray pipe (93) is fixedly connected to the hose (94). The end of the hose (94) away from the spray pipe (93) is fixedly connected to the output end of the water pump (14).

7. A cutting machine for road construction according to claim 6, characterized in that: The support rod (91) is located diagonally below the connecting rod (81) behind it, and the two are of equal length and always in a parallel state. The bottom of the spray pipe (93) is inclined toward the cutting wheel (85).

Citation Information

Patent Citations

  • Joint cutter for road construction

    CN222575227U