Road joint cutting device

Abstract

The utility model relates to the technical field of road construction, and discloses a road joint cutting device which comprises a first supporting plate, a hollow shaft, a first cutting blade, a ball linear bearing, a ball guide shaft, a second cutting blade, a first driving part and a second driving part. In the using process, the first driving piece is controlled to work, the hollow shaft can rotate, and then the first cutting blade is driven to rotate. And meanwhile, the ball linear bearing is driven to rotate, and then the ball guide shaft is driven to rotate. And finally, the second cutting blade is driven to rotate synchronously, and the second cutting blade and the second cutting blade can cut a road at the same time, so that a strip area convenient to impact and crush can be formed in one cutting stroke, and pavement repairing is facilitated. And the second driving piece is controlled to work, so that the ball guide shaft slides. And the distance between the second cutting blade and the first cutting blade is changed, so that the cutting device is suitable for cutting areas with different widths, the operation is simple, and the labor is saved.

Description

Technical Field

[0001] This application relates to the technical field of road construction, for example, to a road cutting device. Background Art

[0002] A width-adjustable cutting structure of a road surface cutting machine disclosed in the related art (Publication No.: CN219174975U) includes a bearing seat, a mounting block, a main rotating shaft, a locking bolt, an adjustable distance long hole, a driven pulley, a first bearing seat, a second bearing seat, a protective cover, a first gasket, a first cutting wheel, an adjustable distance shaft, a second gasket, a second cutting wheel, a first fixing block, a first spacer, a second fixing block, and a second spacer.

[0003] In the process of implementing the above embodiments, it is found that there are at least the following problems in the related art:

[0004] For the width-adjustable cutting structure of the road surface cutting machine, by respectively arranging cutting wheels on the main rotating shaft and the adjustable distance shaft, a strip area convenient for impact crushing can be formed in one cutting stroke, thus facilitating road surface repair. Moreover, the distance between the two cutting wheels can be adjusted to be applicable to cutting areas of different widths. However, before adjusting the distance between the two cutting wheels, the locking bolt needs to be loosened. After the distance between the two cutting wheels is adjusted appropriately, the locking bolt needs to be tightened again. Therefore, the operation is rather troublesome.

[0005] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of this application, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0006] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preface to the subsequent detailed description.

[0007] The embodiments of the present disclosure provide a road cutting device to facilitate distance adjustment.

[0008] In some embodiments, the road cutting seam device includes: a first support plate; a hollow shaft rotatably passing through the first support plate; a first cutting blade installed on the outer wall of the hollow shaft; a ball linear bearing installed inside the hollow shaft; a ball guide shaft slidably installed inside the ball linear bearing; a second cutting blade installed on the ball guide shaft, the outer diameter of the second cutting blade being the same as the outer diameter of the first cutting blade; a first driving member installed between the first support plate and the hollow shaft and configured to drive the hollow shaft to perform a rotational motion; a second driving member installed between the first support plate and the ball guide shaft and configured to drive the ball guide shaft to perform a linear motion.

[0009] Optionally, the first driving member includes: a motor seat installed on the first support plate; a driving motor installed on the motor seat, the axis of the rotating end of the driving motor being parallel to the axis of the hollow shaft; wherein, under the drive of the driving motor, the hollow shaft performs a rotational motion.

[0010] Optionally, the first driving member further includes: a driving gear installed on the rotating end of the driving motor; a driven gear installed on the outer wall of the hollow shaft and meshing with the driving gear; wherein, the diameter of the driving gear is smaller than the diameter of the driven gear.

[0011] Optionally, the second driving member includes: a linear slide table installed on the first support plate, the movement direction of the moving end of the linear slide table being the same as the sliding direction of the ball guide shaft relative to the ball linear bearing; a second support plate installed on the moving end of the linear slide table; wherein, the ball guide shaft is rotatably installed on the second support plate.

[0012] Optionally, it further includes: a first bearing installed between the ball guide shaft and the second support plate; wherein, the inner ring of the first bearing abuts against the ball guide shaft, and the outer ring of the first bearing abuts against the second support plate.

[0013] Optionally, it further includes: a first elastic retaining ring clamped on the ball guide shaft and abutting against the inner ring of the first bearing.

[0014] Optionally, it further includes: a second elastic retaining ring clamped on the second support plate and abutting against the outer ring of the first bearing.

[0015] Optionally, it further includes: a bearing seat installed on the first support plate and sleeved on the hollow shaft; a second bearing installed between the bearing seat and the hollow shaft.

[0016] Optionally, it further includes: a handle installed on the first support plate for holding.

[0017] One road cutting device provided by an embodiment of the present disclosure can achieve the following technical effects:

[0018] One road cutting device provided by an embodiment of the present disclosure includes a first support plate, a hollow shaft, a first cutting blade, a ball linear bearing, a ball guide shaft, a second cutting blade, a first driving member, and a second driving member. The first support plate is used to support the entire device. The hollow shaft is rotatably disposed through the first support plate and can perform a rotational movement relative to the first support plate. The first cutting blade is mounted on the outer wall of the hollow shaft and performs a rotational movement driven by the hollow shaft. The ball linear bearing is mounted inside the hollow shaft, moves synchronously with the hollow shaft, and supports and mounts the slidable ball guide shaft. The ball guide shaft is slidably mounted inside the ball linear bearing and can perform a linear movement relative to the ball linear bearing. The second cutting blade is mounted on the ball guide shaft and performs a rotational movement driven by the ball guide shaft. The outer diameter of the second cutting blade is the same as that of the first cutting blade, and the two jointly cut the road. The first driving member is mounted between the first support plate and the hollow shaft and is used to provide a driving force to drive the hollow shaft to perform a rotational movement. The second driving member is mounted between the first support plate and the ball guide shaft and is used to provide a driving force to drive the ball guide shaft to perform a linear movement.

[0019] During use, by controlling the first driving member to work, the hollow shaft can perform a rotational movement relative to the first support plate, thereby driving the first cutting blade to perform a rotational movement. At the same time, it drives the ball linear bearing to perform a rotational movement, and then drives the ball guide shaft to perform a rotational movement. Finally, it drives the second cutting blade to rotate synchronously, and the two can cut the road at the same time, so that a strip area convenient for impact crushing can be formed in one cutting stroke, thus facilitating road repair. Moreover, by controlling the second driving member to work, the ball guide shaft can slide relative to the ball linear bearing. Then it drives the second cutting blade to move and changes the distance from the first cutting blade, so as to be applicable to cutting areas of different widths. And it can automatically adjust the distance between the first cutting blade and the second cutting blade, with simple operation and labor saving.

[0020] The above general description and the following description are only exemplary and explanatory and are not used to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are regarded as similar elements. The drawings do not constitute a proportional limitation, and among them:

[0022] Figure 1 is a schematic cross-sectional structure diagram of a road cutting device provided by an embodiment of the present disclosure;

[0023] Figure 2 is Figure 1 The enlarged structural schematic diagram of position A in [the figure].

[0024] Figure 3 is Figure 1 The enlarged structural schematic diagram of position B in [the figure].

[0025] Figure 4 This is the front view structural schematic diagram of a road cutting joint device provided by an embodiment of the present disclosure.

[0026] Reference numerals:

[0027] 10: The first support plate; 20: The hollow shaft; 30: The first cutting blade; 40: The ball linear bearing; 50: The ball guide shaft; 60: The second cutting blade; 70: The first driving member; 71: The motor base; 72: The driving motor; 73: The driving gear; 74: The driven gear; 80: The second driving member; 81: The linear slide; 82: The second support plate; 90: The first bearing; 100: The bearing seat; 110: The second bearing; 120: The handle. Detailed implementation manners

[0028] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and illustration purposes and are not used to limit the embodiments of the present disclosure. In the following technical descriptions, for the sake of explanation, numerous details are provided to give a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0029] The terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the embodiments of the present disclosure are used to distinguish similar objects and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0030] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", and "rear" is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements, or components must have a specific orientation or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] In addition, the terms "arranged", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0032] Unless otherwise specified, the term "plurality" means two or more.

[0033] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0034] The term "and / or" is a description of the association relationship of an object, indicating that there can be three relationships. For example, A and / or B means: A or B, or, A and B these three relationships.

[0035] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0036] Combined with Figures 1 to 4As shown in the figure, an embodiment of the present disclosure provides a road cutting device, which includes a first support plate 10, a hollow shaft 20, a first cutting blade 30, a ball linear bearing 40, a ball guide shaft 50, a second cutting blade 60, a first driving member 70, and a second driving member 80. The first support plate 10 is used to support the entire device. The hollow shaft 20 is rotatably disposed through the first support plate 10 and can perform a rotational movement relative to the first support plate 10. The first cutting blade 30 is mounted on the outer wall of the hollow shaft 20 and performs a rotational movement driven by the hollow shaft 20. The ball linear bearing 40 is mounted inside the hollow shaft 20, moves synchronously with the hollow shaft 20, and supports and mounts the slidable ball guide shaft 50. The ball guide shaft 50 is slidably mounted inside the ball linear bearing 40 and can perform a linear movement relative to the ball linear bearing 40. The second cutting blade 60 is mounted on the ball guide shaft 50 and performs a rotational movement driven by the ball guide shaft 50. The outer diameter of the second cutting blade 60 is the same as the outer diameter of the first cutting blade 30, and the two jointly cut the road. The first driving member 70 is mounted between the first support plate 10 and the hollow shaft 20 and is used to provide a driving force to drive the hollow shaft 20 to perform a rotational movement. The second driving member 80 is mounted between the first support plate 10 and the ball guide shaft 50 and is used to provide a driving force to drive the ball guide shaft 50 to perform a linear movement.

[0037] For the road cutting device provided by the embodiment of the present disclosure, when the first driving member 70 works, the hollow shaft 20 can perform a rotational movement relative to the first support plate 10, and then drive the first cutting blade 30 to perform a rotational movement. At the same time, drive the ball linear bearing 40 to perform a rotational movement, and then drive the ball guide shaft 50 to perform a rotational movement. Finally, drive the second cutting blade 60 to rotate synchronously, and the two can cut the road at the same time, so that a strip area convenient for impact crushing can be formed in one cutting stroke, thereby facilitating road surface repair. Moreover, when the second driving member 80 works, the ball guide shaft 50 can slide relative to the ball linear bearing 40. Then drive the second cutting blade 60 to move and change the distance from the first cutting blade 30, so as to be applicable to cutting areas of different widths. And it can automatically adjust the distance between the first cutting blade 30 and the second cutting blade 60, with simple operation and labor saving.

[0038] Optionally, in combination with Figure 1 and Figure 4 As shown in the figure, the first driving member 70 includes a motor base 71 and a driving motor 72. The motor base 71 is mounted on the first support plate 10 and is used to support and mount the driving motor 72. The driving motor 72 is mounted on the motor base 71 and is used to provide a driving force. The axis of the rotating end of the driving motor 72 is parallel to the axis of the hollow shaft 20, so as to facilitate the installation of a transmission member between the rotating end of the driving motor 72 and the hollow shaft 20. Among them, under the drive of the driving motor 72, the hollow shaft 20 performs a rotational movement.

[0039] In the embodiment of the present disclosure, the hollow shaft 20 rotates under the drive of the drive motor 72. The drive motor 72 is used as the drive source, which has the advantages of reliable operation, low price and firm structure. At the same time, the control is very convenient, with the ability of self-starting, acceleration, braking, reversing and stopping, etc., which can meet various operation requirements.

[0040] Optionally, combined Figure 1 and Figure 4 As shown, the first driving member 70 also includes a driving gear 73 and a driven gear 74. The driving gear 73 is installed at the rotating end of the driving motor 72, and performs rotational motion under the drive of the driving motor 72. The driven gear 74 is installed on the outer wall of the hollow shaft 20, and is used to drive the hollow shaft 20 to perform rotational motion. The driven gear 74 is meshed with the driving gear 73 to jointly transmit the driving force. Among them, the diameter size of the driving gear 73 is smaller than the diameter size of the driven gear 74.

[0041] In the disclosed embodiment, the driving motor 72 is controlled to work, so that the driving gear 73 can be driven to rotate. Through the meshing action between the teeth, the driven pulley can be driven to rotate. Then the hollow shaft 20 is driven to rotate, and finally the first cutting blade 30 and the second cutting blade 60 are synchronously rotated. In addition, the design that the diameter of the driving gear 73 is smaller than the diameter of the driven gear 74 can reduce the rotation speed and increase the output torque.

[0042] Optionally, combined Figure 1 and Figure 4 As shown, the second driving member 80 includes a linear slide 81 and a second support plate 82. The linear slide 81 is mounted on the first support plate 10, and is used to provide a driving force to realize the linear motion function. The movement direction of the moving end of the linear slide 81 is the same as the sliding direction of the ball guide shaft 50 relative to the ball linear bearing 40, so that the ball guide shaft 50 can slide relative to the ball linear bearing 40 under the drive of the moving end of the linear slide 81. The ball guide shaft 50 is rotatably mounted on the second support plate 82, and can rotate relative to the second support plate 82. The second support plate 82 is mounted on the moving end of the linear slide 81, and performs linear motion under the drive of the moving end of the linear slide 81.

[0043] In the disclosed embodiment, the linear slide 81 is controlled to work, so as to drive the second support plate 82 to move. The ball guide shaft 50 is then driven to slide relative to the ball linear bearing 40, and finally the spacing between the first cutting blade 30 and the second cutting blade 60 is changed. Since the ball guide shaft 50 and the second support plate 82 can rotate with each other, the second support plate 82 will not rotate when the ball guide shaft 50 rotates, and the spacing between the first cutting blade 30 and the second cutting blade 60 can be adjusted when the first cutting blade 30 and the second cutting blade 60 rotate.

[0044] Optionally, in combination with Figure 1 and Figure 2 as shown, it further includes a first bearing 90. The first bearing 90 is installed between the ball guide shaft 50 and the second support plate 82. Among them, the inner ring of the first bearing 90 abuts against the ball guide shaft 50, and the outer ring of the first bearing 90 abuts against the second support plate 82.

[0045] In the embodiment of the present disclosure, it further includes a first bearing 90 installed between the ball guide shaft 50 and the second support plate 82. The first bearing 90 is used to enable the ball guide shaft 50 and the second support plate 82 to rotate relative to each other and reduce the friction between the ball guide shaft 50 and the second support plate 82.

[0046] Optionally, in combination with Figure 1 and Figure 2 as shown, it further includes a first elastic retaining ring. The first elastic retaining ring is clamped on the ball guide shaft 50 and abuts against the inner ring of the first bearing 90.

[0047] In the embodiment of the present disclosure, it further includes a first elastic retaining ring clamped on the ball guide shaft 50 and abutting against the inner ring of the first bearing 90. The first elastic retaining ring is used for limiting to determine the relative position between the first bearing 90 and the ball guide shaft 50.

[0048] Optionally, in combination with Figure 1 and Figure 2 as shown, it further includes a second elastic retaining ring. The second elastic retaining ring is clamped on the second support plate 82 and abuts against the outer ring of the first bearing 90.

[0049] In the embodiment of the present disclosure, it further includes a second elastic retaining ring clamped on the second support plate 82 and abutting against the outer ring of the first bearing 90. The second elastic retaining ring is used for limiting to determine the relative position between the first bearing 90 and the second support plate 82.

[0050] Optionally, in combination with Figure 1 and Figure 3 as shown, it further includes a bearing housing 100 and a second bearing 110. The bearing housing 100 is installed on the first support plate 10 and sleeved on the hollow shaft 20. The second bearing 110 is installed between the bearing housing 100 and the hollow shaft 20.

[0051] In the embodiment of the present disclosure, it further includes a bearing housing 100 installed on the first support plate 10 and a second bearing 110 installed inside the bearing housing 100. The bearing housing 100 is used to support and limit the second bearing 110. The second bearing 110 is used to support and install the rotatable hollow shaft 20, reduce the friction received by the hollow shaft 20, and improve the rotation accuracy of the hollow shaft 20.

[0052] Optionally, in combination with Figure 1 and Figure 4 as shown, it further includes a handle 120. The handle 120 is installed on the first support plate 10 and is used for gripping.

[0053] In an embodiment of the present disclosure, it further includes a handle 120 installed on the first support plate 10. The handle 120 is used for gripping to facilitate manual operation of the entire device.

[0054] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments only represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A road cutting device, characterized in that: include: a first support plate; A hollow shaft rotatably disposed through the first supporting plate; A first cutting blade, mounted on the outer wall of the hollow shaft; A ball linear bearing is installed inside the hollow shaft; A ball guide shaft is slidably mounted inside the ball linear bearing; A second cutting blade is mounted on the ball guide shaft, and the outer diameter of the second cutting blade is the same as the outer diameter of the first cutting blade; a first driving member, installed between the first supporting plate and the hollow shaft, and configured to drive the hollow shaft to perform rotational motion; The second driving member is installed between the first supporting plate and the ball guide shaft, and is configured to drive the ball guide shaft to perform linear motion.

2. A road cutting device according to claim 1, characterized in that: The first driving member comprises: A motor seat, mounted on the first supporting plate; A driving motor is mounted on the motor seat, wherein the axis of the rotating end of the driving motor is parallel to the axis of the hollow shaft; Wherein, under the drive of the driving motor, the hollow shaft performs rotational motion.

3. A road cutting device according to claim 2, characterized in that: The first driving member further comprises: A driving gear, mounted on the rotating end of the driving motor; A driven gear is mounted on the outer wall of the hollow shaft and meshes with the driving gear; Wherein, the diameter size of the driving gear is smaller than the diameter size of the driven gear.

4. A road cutting device according to claim 1, characterized in that: The second driving member comprises: A linear slide, mounted on the first support plate, wherein the moving direction of the moving end of the linear slide is the same as the sliding direction of the ball guide shaft relative to the ball linear bearing; A second support plate, mounted on the moving end of the linear slide; Wherein, the ball guide shaft is rotatably mounted on the second support plate.

5. A road cutting device according to claim 4, characterized in that: Also includes: A first bearing, installed between the ball guide shaft and the second support plate; Wherein, the inner ring of the first bearing abuts against the ball guide shaft, and the outer ring of the first bearing abuts against the second support plate.

6. A road cutting device according to claim 5, characterized in that: Also includes: The first elastic retaining ring is clamped on the ball guide shaft and abuts against the inner ring of the first bearing.

7. A road cutting device according to claim 5, characterized in that: Also includes: The second elastic retaining ring is clamped on the second supporting plate and abuts against the outer ring of the first bearing.

8. A road cutting device according to any one of claims 1 to 7, characterized in that: Also includes: A bearing seat, mounted on the first support plate and sleeved on the hollow shaft; The second bearing is installed between the bearing seat and the hollow shaft.

9. A road cutting device according to any one of claims 1 to 7, characterized in that: Also includes: A handle is mounted on the first support plate and is used for holding.

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