Hydraulic circular ring saw and hydraulic equipment

Abstract

The utility model provides a hydraulic circular ring saw and hydraulic equipment, which relates to the technical field of hydraulic tools and comprises a casing, a circular ring saw blade, a driving component and a guide component. The two sides of the driving wheel are each provided with at least one guide assembly in the extending direction of the circular saw blade, guide rollers and supporting rollers of the guide assemblies are limited from the two side faces of the circular saw blade, a plurality of annular protruding strips on the guide rollers and a plurality of annular grooves in the circular saw blade are combined together, and under the action of elastic elements, the annular protruding strips and the supporting rollers are combined together. The inner ring edge of the circular ring saw blade tightly presses the driving wheel to form transmission connection, and the circular ring saw blade is jointly limited by the guide roller, the supporting roller and the driving wheel to form a stable installation structure. In addition, the multiple annular protruding strips and the multiple annular grooves are arranged, and therefore combination is tighter and more reliable.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic tools, and in particular to a hydraulic circular saw and hydraulic equipment. Background Art

[0002] Hydraulic circular saws can be used to cut objects of various materials, such as concrete, rock, steel structure, brick wall and asphalt. Specifically, ordinary hydraulic circular saws are mainly composed of saw blades, motor mounting bases, motors, handles, etc., and adopt a handheld structure. The hydraulic circular saw can be driven by a hydraulic power station. The output oil of the hydraulic power station drives the motor to work through the circular saw oil pipe and the motor mounting base, and the motor drives the saw blade to rotate for cutting. The saw blade of the hydraulic circular saw is in the shape of a ring and cannot be installed by setting a bearing structure at the center of rotation. The ordinary installation method is difficult to ensure its long-term stable and reliable operation. Utility Model Content

[0003] The technical problem to be solved by the present application is to propose a hydraulic circular saw and hydraulic equipment in view of the above-mentioned deficiencies in the prior art.

[0004] A hydraulic circular saw, comprising:

[0005] chassis;

[0006] The circular saw blade is in a circular ring shape, and a cutting edge is provided along the outer edge of the circular saw blade; the two sides of the circular saw blade are respectively a first side surface and a second side surface, and a plurality of annular grooves are provided on the first side surface, and the plurality of annular grooves are arranged concentrically and distributed at different radial positions of the circular saw blade;

[0007] A driving assembly, comprising a driving wheel and a hydraulic motor; the hydraulic motor is used to drive the driving wheel to rotate; the driving wheel is arranged in the inner ring of the circular saw blade, and is used to combine with the inner ring edge of the circular saw blade to form a transmission connection;

[0008] Along the extension direction of the circular saw blade, at least one guide assembly is arranged on both sides of the driving wheel, and the guide assembly includes a guide roller, a support roller, and an elastic element; a plurality of annular ridges are provided on the outer circumference of the guide roller, and the plurality of annular ridges are adapted to the plurality of annular grooves; the guide roller is arranged on one side of the first side surface of the circular saw blade, and the support roller is arranged on one side of the second side surface of the circular saw blade, the guide roller and the support roller clamp the circular saw blade from both sides, and the plurality of annular ridges on the guide roller are combined with the plurality of annular grooves on the circular saw blade; both the guide roller and the support roller can rotate together with the circular saw blade; the elastic element is used to drive the guide roller to apply a radial force to the inner ring side of the circular saw blade so that the inner ring edge of the circular saw blade presses the driving wheel to form a transmission connection.

[0009] Optionally, the inner edge of the circular saw blade is an outwardly convex V-shaped structure, and the outer periphery of the driving wheel is provided with a V-shaped groove adapted to the V-shaped structure.

[0010] Optionally, a circular water tray is provided in the inner ring of the circular saw blade, the water tray and the circular saw blade are in the same plane, and a cooling water channel is provided inside the water tray.

[0011] Optionally, the guide assembly also includes: an outer sleeve, an inner sleeve, and a roller shaft; the guide roller is installed on the roller shaft, and the roller shaft is installed in the inner hole of the inner sleeve through a bearing structure; the inner sleeve is sleeved in the outer sleeve and can slide axially relative to the outer sleeve; the outer sleeve is fixed on the casing.

[0012] Optionally, the guide assembly also includes: a nut and a push rod component; the nut and the push rod component are fixed together, the nut is installed on the end of the outer sleeve away from the guide roller, and the push rod component is accommodated in the inner hole of the outer sleeve; the elastic element is located in the inner hole of the outer sleeve, and is pressed by the push rod component to form an elastic preload force.

[0013] Optionally, the push rod member partially extends into the inner hole of the inner sleeve and can pull the inner sleeve out of the outer sleeve through the limiting structure;

[0014] The elastic element is located in the inner hole of the inner sleeve, one end of which abuts against the push rod component, and the other end acts on the inner side of the bearing structure between the roller shaft and the inner sleeve, and the guide roller is arranged on the outer side of the bearing structure.

[0015] Optionally, the elastic element is a spring, and a spring seat is provided between the elastic element and the bearing structure, and the spring indirectly acts on the bearing structure through the spring seat.

[0016] Optionally, at least three annular grooves are arranged at intervals on the circular saw blade.

[0017] Optionally, the hydraulic circular saw further comprises an adjusting element for adjusting the force of the elastic element.

[0018] On the other hand, the present application also provides a hydraulic device, including: the hydraulic circular saw provided in the above part, and a hydraulic power unit; the hydraulic power unit is used to provide pressurized oil to the hydraulic motor of the hydraulic circular saw to drive it to work.

[0019] In the present application, at least one guide assembly is arranged on both sides of the driving wheel along the extension direction of the circular saw blade, and the guide roller and the support roller of the guide assembly are limited from the two sides of the circular saw blade, and the multiple annular convex strips on the guide roller are combined with the multiple annular grooves on the circular saw blade. Under the action of the elastic element, the inner edge of the circular saw blade presses the driving wheel to form a transmission connection, and the circular saw blade is jointly limited by the guide roller, the support roller, and the driving wheel to form a stable installation structure. In the present application, multiple annular convex strips and annular grooves are provided, which are more tightly and reliably combined. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the hydraulic circular saw in the embodiment of the present application.

[0021] Figure 2 It is another structural schematic diagram of the hydraulic circular saw in the embodiment of the present application.

[0022] Figure 3 yes Figure 1 A partial enlarged view of .

[0023] Figure 4 It is a partial structural schematic diagram of the hydraulic circular saw in the embodiment of the present application.

[0024] Figure 5 It is a cross-sectional view of the guide assembly in the embodiment of the present application.

[0025] Figure 6 It is a schematic block diagram of the hydraulic equipment in the embodiment of the present application.

[0026] Figure numerals: hydraulic circular saw 100, housing 10, circular saw blade 20, outer ring edge 21, inner ring edge 22, first side 23, second side 24, annular groove 25, drive assembly 30, drive wheel 31, hydraulic motor 32, guide assembly 40, guide roller 41 (annular ridge 411), support roller 42, elastic element 43, outer sleeve 44, inner sleeve 45, roller shaft 46, bearing structure 47, nut 48, push rod member 49, spring seat 410, water tray 50, hydraulic power unit 200. DETAILED DESCRIPTION

[0027] The following is the specific embodiment of the present application and in conjunction with the accompanying drawings, the technical scheme of the present application is further described, but the present application is not limited to these embodiments. In the following description, specific details such as specific configuration and assembly are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures has been omitted.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other.

[0029] The hydraulic circular saw provided in the present application can be used to cut objects of various materials, such as concrete, rock, steel structure, brick wall and asphalt, etc. The hydraulic circular saw can be driven by the hydraulic power station, the output oil of the hydraulic power station drives the hydraulic motor to work through the circular saw oil pipe, and the hydraulic motor drives the circular saw blade to rotate for cutting.

[0030] like Figure 1-Figure 4 As shown, the hydraulic circular saw 100 includes a housing 10, a circular saw blade 20, a driving assembly 30, and a guide assembly 40. The driving assembly 30 is used to drive the circular saw blade 20 to rotate and cut an object, and the driving assembly 30 is implemented by a hydraulic motor and can be driven by external oil supply.

[0031] The circular saw blade 20 is in a circular ring shape, and a cutting blade is provided along the outer edge 21 of the circular saw blade 20; the two sides of the circular saw blade 20 are respectively a first side surface 23 and a second side surface 24, and a plurality of annular grooves 25 are provided on the first side surface 23, and the plurality of annular grooves 25 are arranged concentrically and distributed at different radial positions of the circular saw blade 20. The driving assembly 30 includes a driving wheel 31 and a hydraulic motor 32, and the hydraulic motor 32 is used to drive the driving wheel 31 to rotate. The driving wheel 31 is arranged in the inner ring of the circular saw blade 20, and is used to combine with the inner ring edge 22 of the circular saw blade 20 to form a transmission connection. At least one guide assembly 40 is arranged on both sides of the driving wheel 31 along the extension direction of the circular saw blade 20, and the guide assembly 40 includes a guide roller 41, a support roller 42, and an elastic element 43; a plurality of annular ridges 411 are provided on the outer circumference of the guide roller 41, and the plurality of annular ridges 411 are adapted to the plurality of annular grooves 25; the guide roller 41 is arranged on the side of the first side surface 23 of the circular saw blade 20, and the support roller 42 is arranged on the side of the second side surface 24 of the circular saw blade 20, the guide roller 41 and the support roller 42 clamp the circular saw blade 20 from both sides, and the plurality of annular ridges 411 on the guide roller 41 are combined with the plurality of annular grooves 25 on the circular saw blade 20; both the guide roller 41 and the support roller 42 can rotate with the circular saw blade 20; the elastic element 43 is used to drive the guide roller 41 to apply a radial force directed to the inner ring side to the circular saw blade 20 so that the inner ring edge 22 of the circular saw blade 20 presses the driving wheel 31 to form a transmission connection.

[0032] Specifically, the circular saw blade 20 has an outer edge 21 and an inner edge 22, as well as a first side surface 23 and a second side surface 24. The outer edge 21 is processed into a cutting edge, and when the circular saw blade 20 rotates, the outer edge 21 can cut an object. The driving assembly 30 is a hydraulic driving assembly, and its driving source is a hydraulic motor. Under the drive of the hydraulic motor 32, the driving wheel 31 rotates, and the driving wheel 31 and the inner edge 22 of the circular saw blade 20 transmit power through friction. When the hydraulic motor 32 drives the driving wheel 31 to rotate, the circular saw blade 20 also rotates, so that cutting can be performed.

[0033] The guide assembly 40 is arranged at both sides of the driving wheel 31 along the extension direction of the circular saw blade 20. The guide roller 41 and the support roller 42 clamp the circular saw blade 20 from both sides. The multiple annular convex strips 411 on the outer circumference of the guide roller 41 are combined with the multiple annular grooves 25 on the first side 23 of the circular saw blade 20. Under the action of the elastic element 43, the guide roller 41 applies a radial force directed to the inner ring side to the circular saw blade 20, so that the inner ring edge 22 of the circular saw blade 20 presses the driving wheel 31, and friction transmission can be formed between the circular saw blade 20 and the driving wheel 31. The above structure includes various forms of limiting the circular saw blade 20. On the one hand, the circular saw blade 20 is clamped from both sides by the guide roller 41 and the support roller 42. On the other hand, the multiple annular grooves 25 on the first side 23 of the circular saw blade 20 are combined with the multiple annular convex strips 411 on the outer circumference of the guide roller 41, and the driving wheel 31 supports the circular saw blade 20 from the inner ring. Therefore, the circular saw blade 20 is defined by the guide roller 41, the support roller 42, and the drive wheel 31 to form a stable installation structure. It should be understood that the multiple annular convex strips 411 on the outer periphery of the guide roller 41 are combined with the multiple annular grooves 25 on the first side surface 23 of the circular saw blade 20. The combination of multiple concave and convex parts can allow the guide roller 41 to apply a more stable and reliable limit to the circular saw blade 20. The number N of annular grooves 25 on the circular saw blade 20 can be 2-10. Further, at least three annular grooves 25 are arranged at intervals on the circular saw blade 20.

[0034] In one embodiment of the present application, the hydraulic circular saw 100 further includes an adjusting element for adjusting the force of the elastic element 43 .

[0035] In one embodiment of the present application, the inner edge 22 of the circular saw blade 20 is a convex V-shaped structure, and the outer periphery of the driving wheel 31 is provided with a V-shaped groove adapted to the V-shaped structure. The V-shaped structure of the circular saw blade 20 is stuck in the V-shaped groove of the driving wheel 31, which can avoid axial separation. In addition, due to the combination between the V-shaped structure and the V-shaped groove, the contact area is larger and it is not easy to slip.

[0036] Further references Figure 5In one embodiment of the present application, the guide assembly 40 also includes an outer sleeve 44, an inner sleeve 45, and a roller shaft 46; the guide roller 41 is installed on the roller shaft 46, and the roller shaft 46 is installed in the inner hole of the inner sleeve 45 through a bearing structure 47; the inner sleeve 45 is sleeved in the outer sleeve 44 and can slide axially relative to the outer sleeve 44; the outer sleeve 44 is fixed on the casing 10.

[0037] Specifically, the outer sleeve 44 is fixed on the housing 10 and is a fixed part. The inner sleeve 45 is sleeved in the outer sleeve 44 and can slide axially relative to the outer sleeve 44. Therefore, the structure installed on the inner sleeve 45 can slide axially. The roller shaft 46 is installed in the inner hole of the inner sleeve 45 through the bearing structure 47, and the guide roller 41 is installed on the roller shaft 46. Under this structural form, the roller shaft 46, the inner sleeve 45, the bearing structure 47, and the guide roller 41 can slide axially relative to the outer sleeve 44 as a whole. In this way, the guide roller 41 can rotate freely through the bearing structure 47, and can move axially through the relationship between the inner sleeve 45 and the outer sleeve 44. After the installation is completed, the guide roller 41 can rotate adaptively with the circular saw blade 20, and the elastic element 43 can apply an axial force to the guide roller 41 and make the guide roller 41 press the circular saw blade 20.

[0038] Furthermore, the guide assembly 40 also includes a nut 48 and a push rod member 49; the nut 48 and the push rod member 49 are fixed together, the nut 48 is installed on the end of the outer sleeve 44 away from the guide roller 41, and the push rod member 49 is accommodated in the inner hole of the outer sleeve 44; the elastic element 43 is located in the inner hole of the outer sleeve 44, and is pressed by the push rod member 49 to form an elastic preload. The nut 48 is installed on the outer sleeve 44 by threaded connection. With the installation of the nut 48, the push rod member 49 can press the elastic element 43 to apply a certain preload. Here, the nut 48 can change its position by rotation, thereby changing the position of the push rod member 49. When the position of the push rod member 49 changes, the compression length and preload of the elastic element 43 also change accordingly. Therefore, the tightness can be adjusted by rotating the nut 48.

[0039] Further, the push rod member 49 partially extends into the inner hole of the inner sleeve 45 and can pull the inner sleeve 45 out of the outer sleeve 44 through the limiting structure. The elastic element 43 is located in the inner hole of the inner sleeve 45, one end of which abuts on the push rod member 49, and the other end acts on the inner side of the bearing structure 47 between the roller shaft 46 and the inner sleeve 45, and the guide roller 41 is arranged on the outer side of the bearing structure 47. Further, the elastic element 43 is a spring, and a spring seat 410 is also arranged between the elastic element 43 and the bearing structure 47, and the spring indirectly acts on the bearing structure 47 through the spring seat 410.

[0040] like Figure 5As shown, the nut 48 and the push rod member 49 are connected as one, and when the nut 48 is tightened, the push rod member 49 compresses the spring to the right, and the preload force of the spring can be adjusted. When the nut 48 is loosened, the push rod member 49 moves to the left, and the inner sleeve 45 can be pulled out of the outer sleeve 44.

[0041] In one embodiment of the present application, a circular water tray 50 is provided in the inner circle of the circular saw blade 20, the water tray 50 and the circular saw blade 20 are in the same plane, and a cooling water channel is provided inside the water tray 50. The water tray 50 can be connected to the cooling water pipeline, so that the cooling water can be guided to the circular saw blade at the periphery.

[0042] The hydraulic circular saw provided by the present application has at least one guide assembly arranged on both sides of the driving wheel along the extension direction of the circular saw blade, and the guide roller and the support roller of the guide assembly are limited from the two sides of the circular saw blade, and the multiple annular convex strips on the guide roller are combined with the multiple annular grooves on the circular saw blade. Under the action of the elastic element, the inner ring edge of the circular saw blade presses the driving wheel to form a transmission connection, and the circular saw blade is jointly limited by the guide roller, the support roller, and the driving wheel to form a stable installation structure. In the present application, multiple annular convex strips and annular grooves are provided, which are more tightly and reliably combined.

[0043] refer to Figure 6 The present application also provides a hydraulic device, which includes: the above-mentioned hydraulic circular saw 100, and a hydraulic power unit 200, the hydraulic power unit 200 is used to provide pressurized oil to the hydraulic motor 32 of the hydraulic circular saw 100 to drive it to work.

[0044] Specifically, the hydraulic power unit 200 is a hydraulic power station, which includes a hydraulic pump and a driving source. The driving source drives the hydraulic pump to work, so that the hydraulic pump provides pressure oil output. When the hydraulic power unit 200 and the hydraulic circular saw 100 are connected, the hydraulic power unit 200 can provide oil to drive the hydraulic motor 32 of the hydraulic circular saw 100. The driving source can use an electric motor or an internal combustion engine.

[0045] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, work, devices, components and / or combinations thereof.

[0047] The specific embodiments described herein are merely examples of the spirit of the present application. A person skilled in the art of the present application may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present application or exceed the scope defined by the attached claims.

Claims

1. A hydraulic circular saw, characterized in that: The hydraulic circular saw comprises: chassis; The circular saw blade is in a circular ring shape, and a cutting edge is provided along the outer edge of the circular saw blade; the two sides of the circular saw blade are respectively a first side surface and a second side surface, and a plurality of annular grooves are provided on the first side surface, and the plurality of annular grooves are arranged concentrically and distributed at different radial positions of the circular saw blade; A driving assembly, comprising a driving wheel and a hydraulic motor; the hydraulic motor is used to drive the driving wheel to rotate; the driving wheel is arranged in the inner ring of the circular saw blade, and is used to combine with the inner ring edge of the circular saw blade to form a transmission connection; Along the extension direction of the circular saw blade, at least one guide assembly is arranged on both sides of the driving wheel, and the guide assembly includes a guide roller, a support roller, and an elastic element; a plurality of annular convex strips are provided on the outer circumference of the guide roller, and the plurality of annular convex strips are adapted to the plurality of annular grooves; the guide roller is arranged on one side of the first side surface of the circular saw blade, and the support roller is arranged on one side of the second side surface of the circular saw blade, the guide roller and the support roller clamp the circular saw blade from both sides, and the plurality of annular convex strips on the guide roller are combined with the plurality of annular grooves on the circular saw blade; both the guide roller and the support roller can rotate together with the circular saw blade; the elastic element is used to drive the guide roller to apply a radial force to the inner ring side of the circular saw blade so that the inner ring edge of the circular saw blade presses the driving wheel to form a transmission connection.

2. The hydraulic circular saw according to claim 1, characterized in that: The inner edge of the circular saw blade is an outwardly convex V-shaped structure, and the outer periphery of the driving wheel is provided with a V-shaped groove adapted to the V-shaped structure.

3. The hydraulic circular saw according to claim 1, characterized in that: A circular water tray is arranged in the inner circle of the circular saw blade. The water tray and the circular saw blade are in the same plane. A cooling water channel is arranged inside the water tray.

4. The hydraulic circular saw according to claim 1, characterized in that: The guide assembly also includes: an outer sleeve, an inner sleeve, and a roller shaft; the guide roller is installed on the roller shaft, and the roller shaft is installed in the inner hole of the inner sleeve through a bearing structure; the inner sleeve is sleeved in the outer sleeve and can slide axially relative to the outer sleeve; the outer sleeve is fixed on the casing.

5. The hydraulic circular saw according to claim 4, characterized in that: The guide assembly also includes: a nut and a push rod component; the nut and the push rod component are fixed together, the nut is installed on the end of the outer sleeve away from the guide roller, and the push rod component is accommodated in the inner hole of the outer sleeve; the elastic element is located in the inner hole of the outer sleeve, and is pressed by the push rod component to form an elastic preload force.

6. The hydraulic circular saw according to claim 5, characterized in that: The push rod component partially extends into the inner hole of the inner sleeve and can pull the inner sleeve out of the outer sleeve through the limiting structure; The elastic element is located in the inner hole of the inner sleeve, one end of which abuts against the push rod component, and the other end acts on the inner side of the bearing structure between the roller shaft and the inner sleeve, and the guide roller is arranged on the outer side of the bearing structure.

7. The hydraulic circular saw according to claim 6, characterized in that: The elastic element is a spring, and a spring seat is provided between the elastic element and the bearing structure. The spring acts indirectly on the bearing structure through the spring seat.

8. The hydraulic circular saw according to claim 1, characterized in that: At least three annular grooves are arranged at intervals on the circular saw blade.

9. The hydraulic circular saw according to claim 1, characterized in that: The hydraulic circular saw also includes an adjusting element for adjusting the force of the elastic element.

10. A hydraulic device, characterized in that: include: A hydraulic circular saw as described in any one of claims 1 to 9, and a hydraulic power unit; the hydraulic power unit is used to provide pressurized oil to the hydraulic motor of the hydraulic circular saw to drive it to work.

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