Large crawler-type road cutting machine

By designing a tracked chassis and battery pack, the problems of insufficient grip and inconvenience of manual pushing of the road cutter have been solved, enabling safe and efficient cutting operations.

CN224047886UActive Publication Date: 2026-03-27TIANJIN SIFANG INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing road cutters have insufficient grip, are prone to slipping, and are laborious and time-consuming to push manually, making loading and unloading inconvenient.

Method used

It adopts a tracked chassis design, is equipped with a 36V-60V battery pack, and combines a saw blade rotation drive motor and a lifting motor. The tracked road cutter can be controlled by a remote control for its movement and cutting operations.

Benefits of technology

The tracked design improves grip and reduces the risk of slipping, while the battery pack provides convenient power supply, allowing one person to complete loading, unloading, and cutting operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a large crawler-type road cutting machine which is composed of the following components: a crawler; a first support frame; a lifting shaft; a second support frame; an output shaft of the lifting motor is in transmission connection with the input end of the worm and gear speed reducer, the output end of the worm and gear speed reducer is in transmission connection with the first end of the lead screw, and the second end of the lead screw penetrates through the lead screw nut; the saw blade rotation driving motor is arranged at the middle lower part of the top side of the second support frame; the output end of the coupler is in transmission connection with the input end of the T-shaped speed reducer, and the first / second output end of the T-shaped speed reducer is sleeved with the first / second rolling bearing group; the cutting shaft is sleeved with two second bearings, second bearing seats are arranged outside the second bearings, the second bearing seats are connected with the bottom side of the second supporting frame, and the two ends of the cutting shaft are each provided with a saw blade; a battery pack; the storage battery pack is electrically connected with the control device, and the output end of the control device is connected with the input end of the saw blade rotation driving motor and the input end of the lifting motor.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to cutting device field, concretely relates to a large -scale caterpillar type road cutting machine. BACKGROUND

[0002] Concrete condenses hardening process, cement hydration releases a large amount of heat, resulting in the temperature of concrete rising, most of the cement hydration reaction of road cutting machine ends, and the temperature of concrete starts to drop. In the cooling process, concrete has condensed and hardened, and the shrinkage generated by cooling can cause concrete cracking, which can seriously affect the quality and service life of the road surface.

[0003] In order to avoid the above situation, expansion joints are cut on the road by the road cutting machine before the shrinkage generated by cooling. However, the existing road cutting machine has the following disadvantages: 1. The existing road cutting machine mostly uses support wheels for support, which results in insufficient road cutting machine grip and easy skidding; 2. The existing road cutting machine is mostly pushed by hand, but due to the very heavy road cutting machine, a small crane is needed to help load and unload the vehicle, and only manual movement is used, which is time-consuming and laborious, and very inconvenient. UTILITY MODEL CONTENTS

[0004] The utility model aims at the problems existing in the prior art, i.e. the utility model discloses a large -scale caterpillar type road cutting machine.

[0005] Technical scheme: the large -scale caterpillar type road cutting machine is composed of the following components:

[0006] Caterpillar vehicle;

[0007] First support frame, welded to the top side of the caterpillar vehicle, one end of the first support frame is welded with two parallel fixing pieces, and a screw rod nut is fixed between the top side surfaces of the two fixing pieces;

[0008] Lifting shaft, welded to the other end of the top side of the first support frame, both ends of the lifting shaft are sleeved with a bearing, and an outer sleeve of the bearing is provided with a bearing seat;

[0009] Second support frame, the bottom side of the bottom surface of the second support frame is fixedly connected with the bottom side of the two bearing seats by bolt connection, the top surface of the second support frame is welded with a lifting motor mounting seat on the upper side, and the lifting motor mounting seat is provided with a lifting motor;

[0010] Worm and gear reducer, the output shaft of the lifting motor is in transmission connection with the input end of the worm and gear reducer, the output end of the worm and gear reducer is in transmission connection with the first end of the screw rod, and the second end of the screw rod passes through the screw rod nut in the form of thread connection;

[0011] A saw blade rotating drive motor is fixed to the middle lower part of the top side of the second support frame by screw connection, and the output shaft of the saw blade rotating drive motor is in transmission connection with the shaft coupling.

[0012] A T-shaped speed reducer, the output end of the shaft coupling is in transmission connection with the input end of the T-shaped speed reducer, the first output end of the T-shaped speed reducer is in transmission connection with the first set of rolling bearings, and the second output end of the T-shaped speed reducer is in transmission connection with the second set of rolling bearings.

[0013] A cutting shaft is sleeved with two second bearings, the second bearings are fixed outside the second bearing seats, the second bearing seats are connected to the bottom side of the second support frame by screw connection, the cutting shaft is respectively sleeved with a third set of rolling bearings and a fourth set of rolling bearings, the first set of rolling bearings and the third set of rolling bearings are in transmission connection through a belt set, the second set of rolling bearings and the fourth set of rolling bearings are in transmission connection through a belt set, and the two ends of the cutting shaft are respectively provided with a saw blade.

[0014] A battery pack is fixed to the middle upper side of the top surface of the second support frame by screw connection.

[0015] A control device is fixed to the middle lower side of the top surface of the second support frame by screw connection, the battery pack is in electrical connection with the control device, the output end of the control device is connected to the input end of the saw blade rotating drive motor and the input end of the lifting motor, and the control device is used for controlling the start and stop of the saw blade rotating drive motor and the lifting motor.

[0016] Further, an outer shell is fixed to the top side of the second support frame.

[0017] Further, the outer side of the saw blade is also provided with a dust cover.

[0018] Further, the fixing member located at one end of the first support frame is a trapezoidal member, the top of the fixing member is provided with a through hole, the two sides of the screw rod nut are provided with two positioning columns, and the screw rod nut is clamped with the two fixing members through cooperation of the positioning columns and the through hole in the top of the fixing member.

[0019] Further, the first end of the screw rod is sleeved with a T-shaped sleeve, the T-shaped sleeve is fixed to the worm gear reducer by screw connection, the two sides of the T-shaped sleeve are respectively welded to the first end of the fixed plate, and the second end of the fixed plate is welded to the first support frame.

[0020] Further, the radius of the saw blade is 30-60cm.

[0021] Further, the tracked vehicle comprises left / right tracks, a first end of the left / right tracks is provided with a driving roller for driving the track to rotate, and the second end and the inner side of the middle part of the left / right tracks are respectively provided with a plurality of driven rollers for supporting the track.

[0022] The left traveling motor is arranged on the left side of the inner cavity of the first support frame in a bolted manner, and the output shaft of the left traveling motor is in transmission connection with the input end of the driving roller of the first end of the left track.

[0023] The right traveling motor is arranged on the right side of the inner cavity of the first support frame in a bolted manner, and the output shaft of the right traveling motor is in transmission connection with the input end of the driving roller of the first end of the right track.

[0024] The output end of the control device is connected with the input end of the left traveling motor and the input end of the right traveling motor respectively, so as to control the start / stop of the left traveling motor and the right traveling motor.

[0025] Further, the control device is externally connected with a remote controller.

[0026] Further, the control device is further provided with a commercial power interface, and the commercial power interface is externally connected with commercial power through a power line.

[0027] Further, the battery pack is a 36V-60V lead-acid battery pack or a 36V-60V lithium ion battery pack.

[0028] Beneficial effects: The large-scale tracked road cutting machine has the following beneficial effects:

[0029] 1. The chassis adopts a tracked vehicle design, has a large ground contact area, has strong ground holding capacity, and is not easy to slip;

[0030] 2. The battery pack is configured, and the battery pack can be used for power supply when the vehicle is loaded and unloaded, temporarily transferred to a work site or used for short-time cutting operation. DRAWINGS

[0031] Figure 1 It is a three-dimensional schematic view of the large-scale tracked road cutting machine.

[0032] Figure 2 It is Figure 1 A schematic view after the shell is hidden.

[0033] Figure 3 It is Figure 2 A schematic view after the control device, the saw blade rotation driving motor and the shaft coupling are hidden.

[0034] Figure 4 It is Figure 3The second support frame, T-shaped speed reducer, saw blade, battery pack and dust cover are hidden.

[0035] Figure 5 The first support frame is shown.

[0036] Figure 6 The outer shell is shown.

[0037] Figure 7 The T-shaped speed reducer is shown.

[0038] Figure 8 The saw blade is shown.

[0039] Figure 9 The second support frame is shown.

[0040] Figure 10 The second support frame is shown from another angle.

[0041] Figure 11 The tracked vehicle is shown.

[0042] Figure 12 The assembled screw rod and screw nut are shown.

[0043] Figure 13 The screw nut is shown.

[0044] Figure 14 The large tracked road cutting machine is shown from another angle.

[0045] Wherein:

[0046]

[0047] DETAILED DESCRIPTION

[0048] The specific embodiments of the present application are described in detail below.

[0049] The range is limited in the form of lower limit and upper limit, and the given range is limited by selecting a lower limit and an upper limit. The selected lower limit and upper limit limit the boundary of the specific range. The range limited in this way can include end values or not include end values, and can be arbitrarily combined, that is, any lower limit can be combined with any upper limit to form a range. For example, if a range of 10-50 is listed for a specific parameter, it is understood that the ranges of 10-40 and 20-50 are also expected. In addition, if the minimum range values 1 and 2 are listed, and if the maximum range values 3, 4 and 5 are listed, the following ranges can all be expected: 1-3, 1-4, 1-5, 2-3, 2-4 and 2-5. In this application, unless otherwise stated, the range of values "a-b" represents a shorthand representation of any real number combination between a and b, where a and b are both real numbers. For example, the value range "0-5" represents that all real numbers between "0-5" have been listed in this paper, and "0-5" is only a shorthand representation of these value combinations.

[0050] Unless otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form new technical solutions.

[0051] Unless otherwise specified, all technical features and optional technical features of the present application can be combined with each other to form new technical solutions.

[0052] Unless otherwise specified, all steps of the present application can be performed in sequence or randomly, and preferably in sequence. For example, the method comprises steps (a) and (b), which means that the method can comprise steps (a) and (b) in sequence, or steps (b) and (a) in sequence. For example, the method also comprises step (c), which means that step (c) can be added to the method in any order, for example, the method can comprise steps (a), (b) and (c), or steps (a), (c) and (b), or steps (c), (a) and (b), etc.

[0053] Unless otherwise specified, the "includes" and "contains" mentioned in the present application mean open-ended, and can also be closed. For example, the "includes" and "contains" can mean that other components not listed can also be included or contained, or only the listed components can be included or contained.

[0054] Unless otherwise specified, the reaction is carried out under normal temperature and pressure conditions.

[0055] Unless otherwise specified, all parts or percentages are weight parts or weight percentages.

[0056] In the utility model, the used substances are all known substances, and can be purchased or synthesized by known method.

[0057] In the utility model, the used devices or equipment are all conventional devices or equipment known in the field, and can be purchased.

[0058] The large crawler-type road cutting machine is composed of the following components:

[0059] The crawler 10;

[0060] The first support frame 9 is welded to the top side of the crawler 10, one end of the first support frame 9 is welded with two parallel fixing members, and a screw rod nut 13 is fixed between the top side surfaces of the two fixing members;

[0061] The lifting shaft 11 is welded to the other end of the top side of the first support frame 9, both ends of the lifting shaft 11 are sleeved with a bearing, and an outer sleeve of the bearing is provided with a bearing seat 14;

[0062] The second support frame 19 is fixedly connected with the bottom sides of the two bearing seats 14 through bolt connection at the bottom side, the upper side of the top surface of the second support frame 19 is welded with a lifting motor mounting seat (not shown in the figure), and the lifting motor mounting seat is provided with a lifting motor 8;

[0063] The worm gear reducer 15 is in transmission connection between the output shaft of the lifting motor 8 and the input end of the worm gear reducer 15, the output end of the worm gear reducer 15 is in transmission connection with the first end of the screw rod 12, and the second end of the screw rod 12 is in threaded connection with the screw rod nut 13;

[0064] The saw blade rotary drive motor 3 is fixedly arranged on the middle lower part of the top side of the second support frame 19 in a bolt connection mode, and the output shaft of the saw blade rotary drive motor 3 is in transmission connection with the shaft coupling 4;

[0065] The T-shaped speed reducer 5 is in transmission connection between the output end of the shaft coupling 4 and the input end of the T-shaped speed reducer 5, the first output end of the T-shaped speed reducer 5 is in transmission connection with the first rolling bearing group, and the second output end of the T-shaped speed reducer 5 is in transmission connection with the second rolling bearing group;

[0066] The cutting shaft is sleeved with two second bearings, the second bearings are fixedly provided with a second bearing seat outside, the second bearing seat is connected with the bottom side of the second support frame 19 in a bolt connection mode, the cutting shaft is respectively sleeved with a third rolling bearing group and a fourth rolling bearing group, the first rolling bearing group and the third rolling bearing group are in transmission connection through a belt group, the second rolling bearing group and the fourth rolling bearing group are in transmission connection through a belt group, and both ends of the cutting shaft are respectively provided with a saw blade 6.

[0067] A battery pack 7 is fixed on the top of the second support frame 19 by screw connection;

[0068] A control device 2 is fixed on the bottom of the second support frame 19 by screw connection; the battery pack 7 is electrically connected with the control device 2, and the output end of the control device 2 is connected with the input end of the saw blade rotating driving motor 3 and the input end of the lifting motor 8 respectively, for controlling the start and stop of the saw blade rotating driving motor 3 and the lifting motor 8.

[0069] Further, an outer shell 1 is fixed on the top of the second support frame 19.

[0070] Further, a dust cover 18 is arranged on the outer side of the saw blade 6.

[0071] Further, the fixing member at one end of the first support frame 9 is a trapezoidal member, the top of the fixing member is provided with a through hole, and the two sides of the screw rod nut 13 are provided with two positioning columns, so that the screw rod nut 13 is clamped with the two fixing members through cooperation of the positioning columns and the through hole of the top of the fixing member.

[0072] Further, a T-shaped sleeve is arranged on the first end of the screw rod 12, the T-shaped sleeve is fixed with the worm gear reducer 15 by screw connection, the two sides of the T-shaped sleeve are respectively welded with the first end of a fixed plate, and the second end of the fixed plate is welded with the first support frame 9.

[0073] Further, the radius of the saw blade 6 is 60 cm. In other embodiments, the radius of the saw blade 6 is 30 cm. In other embodiments, the radius of the saw blade 6 is 40 cm.

[0074] Further, the tracked vehicle 10 includes left / right tracks, the first end of each track is provided with a driving roller for driving the track to rotate, and the second end and the inner side of the middle part of each track are respectively provided with a plurality of driven rollers for supporting the track.

[0075] The left walking motor 16 is arranged in the left side of the inner cavity of the first support frame 9 by screw connection, and the output shaft of the left walking motor 16 is in transmission connection with the input end of the driving roller of the first end of the left track.

[0076] The right walking motor 17 is arranged in the right side of the inner cavity of the first support frame 9 by screw connection, and the output shaft of the right walking motor 17 is in transmission connection with the input end of the driving roller of the first end of the right track.

[0077] The output ends of the control device 2 are connected with the input ends of the left walking motor 16 and the right walking motor 17 respectively, for controlling the start and stop of the left walking motor 16 and the right walking motor 17.

[0078] Further, the control device 2 is connected with a remote controller. The left walking motor 16, the right walking motor 17, the saw blade rotating driving motor 3 and the lifting motor 8 are controlled by the remote controller.

[0079] Further, the control device 2 is also provided with a commercial power interface, which is connected with commercial power through a power line.

[0080] Further, the battery pack 7 is a 36V lead-acid battery pack. In other embodiments, the battery pack 7 is a 60V lead-acid battery pack. In other embodiments, the battery pack 7 is a 48V lead-acid battery pack. In other embodiments, the battery pack 7 is a 36V lithium ion battery pack. In other embodiments, the battery pack 7 is a 60V lithium ion battery pack. In other embodiments, the battery pack 7 is a 48V lithium ion battery pack.

[0081] The control device 2 starts the saw blade rotating driving motor 3, which drives the saw blade 6 to rotate through the T-shaped speed reducer 5, so as to realize cutting. The control device 2 starts the lifting motor 8, for controlling the depth of cut of the saw blade 6. The control device 2 starts the left / right walking motor 16 / 17, so as to control the walking direction of the large crawler-type road cutting machine, and to achieve the purpose of cutting concrete.

[0082] The battery pack 7 can be used for supplying power when the vehicle is loaded and unloaded temporarily in a temporary work site or for short-time cutting operation, and commercial power is used for supplying power during formal cutting operation.

[0083] During use, the remote control is used to control the walking of the large crawler-type road cutting machine, which is safe and labor-saving, and one person can complete the loading and unloading of the vehicle and the cutting operation.

[0084] The maximum directly installed diameter of the saw blade is 1.2 meters, and the maximum thickness of the concrete ground that can be cut at one time is 50 centimeters. The left / right walking motor 16 / 17 is arranged on the left / right side of the crawler, so that the large crawler-type road cutting machine can turn around in place in a narrow space.

[0085] The above describes the embodiments of the present application in detail. However, the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A large crawler road cutter characterized by, It is composed of the following parts: Crawler; The first support frame is welded to the top side of the crawler, one end of the first support frame is welded with two parallel fixing members, and the top side between the two fixing members is fixed with a screw rod nut; The lifting shaft is welded to the other end of the top side of the first support frame, both ends of the lifting shaft are sleeved with a bearing, and the outer sleeve of the bearing is provided with a bearing seat; The second support frame is fixedly connected with the bottom side of the two bearing seats through bolt connection at the bottom side of the bottom surface, respectively, the upper side of the top surface of the second support frame is welded with a lifting motor mounting seat, and the lifting motor mounting seat is provided with a lifting motor; The output shaft of the lifting motor is in transmission connection with the input end of the worm gear reducer, the output end of the worm gear reducer is in transmission connection with the first end of the screw rod, and the second end of the screw rod is in threaded connection with the screw rod nut; The saw blade rotary drive motor is fixedly connected to the middle lower part of the top side of the second support frame through bolt connection, and the output shaft of the saw blade rotary drive motor is in transmission connection with the shaft coupling; The T-shaped speed reducer is in transmission connection with the input end of the T-shaped speed reducer, the first output end of the T-shaped speed reducer is in transmission connection with the first rolling bearing group, and the second output end of the T-shaped speed reducer is in transmission connection with the second rolling bearing group; The cutting shaft is sleeved with two second bearings, the second bearings are fixedly connected with the second bearing seats outside, the second bearing seats are connected with the bottom side of the second support frame through bolt connection, the cutting shaft is respectively sleeved with a third rolling bearing group and a fourth rolling bearing group, the first rolling bearing group and the third rolling bearing group are in transmission connection through the belt group, the second rolling bearing group and the fourth rolling bearing group are in transmission connection through the belt group, and both ends of the cutting shaft are respectively provided with a saw blade; The battery pack is fixedly connected to the middle upper side of the top surface of the second support frame through bolt connection; The control device is fixedly connected to the middle lower side of the top surface of the second support frame through bolt connection, the battery pack and the control device are in electrical connection, the output end of the control device is connected with the input end of the saw blade rotary drive motor and the input end of the lifting motor respectively, and the control device is used for controlling the start and stop of the saw blade rotary drive motor and the lifting motor.

2. The large track-type road cutter of claim 1, wherein, The housing is fixedly connected to the top side of the second support frame.

3. The large track-type road cutter of claim 1, wherein, The outer side of the saw blade is also provided with a dust cover.

4. The large track-type road cutter of claim 1, wherein, The fixing member at one end of the first support frame is a trapezoidal member, the top of the fixing member is provided with a through hole, both sides of the screw rod nut are provided with two positioning columns, and the screw rod nut and the two fixing members are clamped through the cooperation of the positioning columns and the through hole in the top of the fixing member.

5. The large track-type road cutter of claim 1, wherein, The first end of the screw rod is sleeved with a T-shaped sleeve, the T-shaped sleeve is fixedly connected with the worm gear reducer through bolt connection, both sides of the T-shaped sleeve are respectively welded with the first end of the fixing plate, and the second end of the fixing plate is welded with the first support frame.

6. The large track-type road cutter of claim 1, wherein, The radius of the saw blade is 30-60 cm.

7. The large track-type road cutter of claim 1, wherein, The track vehicle comprises left / right tracks, the first end of the left / right tracks is provided with a driving roller for driving the track to rotate, the second end and the inner side of the middle part of the left / right tracks are respectively provided with a plurality of driven rollers for supporting the track; The left traveling motor is arranged on the left side of the inner cavity of the first support frame in a bolted manner, the output shaft of the left traveling motor is in transmission connection with the input end of the driving roller at the first end of the left track; The right traveling motor is arranged on the right side of the inner cavity of the first support frame in a bolted manner, the output shaft of the right traveling motor is in transmission connection with the input end of the driving roller at the first end of the right track; The output end of the control device is connected with the input end of the left traveling motor and the input end of the right traveling motor respectively, for controlling the start / stop of the left traveling motor and the right traveling motor.

8. The large track-type road cutter of claim 1, wherein, The control device is externally connected with a remote controller.

9. The large track-type road cutter of claim 1, wherein, The control device is further provided with a commercial power interface, the commercial power interface is externally connected with commercial power through a power line.

10. The large track-type road cutter of claim 1, wherein, The battery pack is a 36V-60V lead-acid battery pack or a 36V-60V lithium ion battery pack.