Paving thickness adjusting mechanism and paver

Abstract

The utility model provides a paving thickness adjusting mechanism and a paver. The paving thickness adjusting mechanism comprises a large arm and a lifting oil cylinder, the mounting seat is provided with a first mounting part connected with the large arm and a second mounting part connected with the lifting oil cylinder, the first mounting part can rotate around a first axis relative to the large arm, and an included angle is formed between the connecting line of the first mounting part and the second mounting part and the first axis; and the locking assembly is arranged on the first mounting part and the large arm and can limit the first mounting part to rotate around the first axis relative to the large arm so as to lock the mounting height of the second mounting part relative to the large arm. According to the arrangement, through unlocking and locking of the locking assembly, the mounting base can rotate relative to the large arm, so that the mounting height of the lifting oil cylinder on the large arm is adjusted, the adjusting range of the paving thickness of the ironing plate is further changed, the large arm or the lifting oil cylinder does not need to be replaced, operation is easy, and time and labor are saved.

Description

Technical Field

[0001] This application relates to the technical field of construction machinery, and particularly to a paving thickness adjustment mechanism and a paver. Background Art

[0002] A paver conducts paving construction by pulling a screed through a boom mechanism. According to the design requirements of the paved road, there are different paving thickness requirements. Generally, the variable range of the paving thickness is determined by a lifting cylinder on the boom. When the lifting cylinder is fully extended, the screed is at the theoretical lowest position, and the paving thickness is the smallest at this time; when the lifting cylinder is fully retracted, the screed is at the theoretical highest position, and the paving thickness is the largest at this time. When the change range of the paving thickness exceeds the stroke of the lifting cylinder, it is usually necessary to replace the boom or the lifting cylinder, which is complex in operation and difficult to adjust. Utility Model Content

[0003] In view of this, this application provides a paving thickness adjustment mechanism and a paver, which are simple in operation, time-saving and labor-saving.

[0004] In order to achieve the above object, this application provides the following technical solutions:

[0005] A paving thickness adjustment mechanism includes:

[0006] A boom and a lifting cylinder;

[0007] A mounting seat having a first mounting portion connected to the boom and a second mounting portion connected to the lifting cylinder. The first mounting portion can rotate relative to the boom about a first axis, and the connection line between the first mounting portion and the second mounting portion forms an angle with the first axis;

[0008] A locking assembly is provided on the first mounting portion and the boom, and can limit the rotation of the first mounting portion relative to the boom about the first axis to lock the mounting height of the second mounting portion relative to the boom.

[0009] Optionally, the mounting seat includes a bearing portion, the first mounting portion and the second mounting portion are respectively arranged on both sides of the bearing portion, and the extending direction of the bearing portion is inclined relative to the first axis.

[0010] Optionally, the angle formed by the extending direction of the bearing portion and the first axis is 40 - 50 degrees.

[0011] Optionally, the cross-sectional area of the bearing portion gradually decreases in the direction from the first mounting seat to the second mounting seat.

[0012] Optionally, the bearing portion is arranged in a frustum of a cone shape.

[0013] Optionally, the first mounting portion, the second mounting portion, and the bearing portion are integrally formed.

[0014] Optionally, the second mounting portion is rotatable relative to the lifting oil cylinder about a second axis, and the first axis and the second axis are parallel and offset.

[0015] Optionally, the offset between the first axis and the second axis is 40 - 60 millimeters.

[0016] Optionally, the first mounting portion is disposed through the boom in the thickness direction of the boom, the second mounting portion is disposed through one end of the lifting oil cylinder in the radial direction of the lifting oil cylinder, and the radius of the first mounting portion is greater than the radius of the second mounting portion.

[0017] Optionally, a boss for wrench screwing is provided on the end face of the first mounting portion away from the second mounting portion.

[0018] Optionally, adjustment marks are provided on the boom and / or the mounting base to indicate the rotation angle of the mounting base relative to the boom.

[0019] Optionally, a plurality of first mounting holes are provided on the mounting base around the first axis, and a plurality of second mounting holes corresponding to the plurality of first mounting holes one by one are provided on the boom; the locking assembly includes a plurality of bolts, and each bolt is connected in the first mounting hole and the second mounting hole.

[0020] Optionally, the first mounting portion includes:

[0021] A fixing member fixedly connected to the boom;

[0022] A rotating member rotatably connected to the fixing member about the first axis, and when the rotating member rotates, it drives the second mounting portion to rotate relative to the fixing member about the first axis;

[0023] Wherein, the locking assembly includes a locking pin passing through the fixing member and the rotating member to limit the rotation of the rotating member relative to the fixing member.

[0024] Optionally, the paving thickness adjusting mechanism further includes a driving assembly, the driving assembly is connected to the boom and is in transmission connection with the first mounting portion to drive the first mounting portion to rotate relative to the boom about the first axis; the locking assembly is disposed on the driving assembly.

[0025] A paver includes the paving thickness adjusting mechanism as described in any one of the above.

[0026] The paving thickness adjustment mechanism and paver provided by this application. A first mounting part and a second mounting part are arranged on the mounting seat. The first mounting part is connected to the boom, and the first mounting part can rotate relative to the boom around a first axis. The second mounting part is connected to the lifting cylinder, and the connection line between the first mounting part and the second mounting part forms an angle with the first axis. In this way, when the first mounting part rotates around the first axis, the second mounting part can swing relative to the first axis. Without changing the height position of the first mounting part, the mounting height of the second mounting part can be changed, that is, the mounting height of the lifting cylinder on the boom is changed, and further the adjustment range of the paving thickness of the screed is changed. Moreover, a locking component is arranged on the first mounting part and the boom. The locking component has a locked state and an unlocked state. When the locking component is in the unlocked state, the first mounting part can rotate relative to the boom around the first axis. When the locking component is in the locked state, the first mounting part cannot rotate relative to the boom around the first axis. By locking the connection between the first mounting part and the boom through the locking component, the mounting height of the second mounting part and the lifting cylinder on the boom is locked, and further the adjustment range of the paving thickness is locked, which is beneficial to improving the paving stability. Brief Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0028] Figure 1 Stereogram of the paving thickness adjustment mechanism shown in some embodiments Figure 1 ;

[0029] Figure 2 Stereogram of the paving thickness adjustment mechanism shown in some embodiments Figure 2 ;

[0030] Figure 3 Sectional stereogram of the paving thickness adjustment mechanism shown in some embodiments;

[0031] Figure 4 Stereogram of the mounting seat shown in some embodiments Figure 1 ;

[0032] Figure 5 Stereogram of the mounting seat shown in some embodiments Figure 2 ;

[0033] Figure 6 Front view of the mounting seat shown in some embodiments;

[0034] Figure 7Structural diagram of a paver shown for some embodiments.

[0035] In the figure: 1. Boom; 2. Lifting cylinder; 3. Screed; 4. Mounting seat; 5. Locking assembly; 41. First mounting part; 42. Second mounting part; 43. Bearing part; 44. Boss; 45. Annular edge; 46. First mounting hole. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0037] As Figures 1 - 7 shown, the embodiment of the present application provides a paving thickness adjustment mechanism, including a boom 1, a lifting cylinder 2, a mounting seat 4, and a locking assembly 5. Among them, the mounting seat 4 is used to connect the boom 1 and the lifting cylinder 2, and the locking assembly 5 is used to lock the connection between the mounting seat 4 and the boom 1. Then, under the action of the mounting seat 4 and the locking assembly 5, the stable connection between the boom 1 and the lifting cylinder 2 is realized.

[0038] The mounting seat 4 is provided with a first mounting part 41 and a second mounting part 42. Among them, the first mounting part 41 is connected to the boom 1, and the first mounting part 41 can rotate relative to the boom 1 around a first axis. For example, the first mounting part 41 is rotatably connected to the boom 1, and the first mounting part 41 can be rotated without disassembly, or the first mounting part 41 is detachably connected to the boom 1, and the first mounting part 41 needs to be removed, rotated, and then reinstalled. The second mounting part 42 is connected to the lifting cylinder 2, and the connection line between the first mounting part 41 and the second mounting part 42 forms an angle with the first axis. This angle can be an acute angle or a right angle, that is, the connection line between the first mounting part 41 and the second mounting part 42 is not parallel to the first axis. In this way, when the first mounting part 41 rotates around the first axis, the second mounting part 42 can swing relative to the first axis. Without changing the height of the first mounting part 41, the installation height of the second mounting part 42 can be changed, that is, the installation height of the lifting cylinder 2 installed on the boom 1 is changed, and then the adjustment range of the paving thickness of the screed 3 is changed.

[0039] It should be noted that the connection line between the first mounting part 41 and the second mounting part 42 is preferably the connection line between the center of the first mounting part 41 and the center of the second mounting part 42. Of course, it can also be the connection between the end of the first mounting part 41 and the end of the second mounting part 42.

[0040] The locking component 5 is arranged on the first mounting part 41 and the boom 1. The locking component 5 has a locked state and an unlocked state. When the locking component 5 is in the unlocked state, the first mounting part 41 can rotate relative to the boom 1 around the first axis. When the locking component 5 is in the locked state, the first mounting part 41 cannot rotate relative to the boom 1 around the first axis. The connection between the first mounting part 41 and the boom 1 is locked through the locking component 5, thereby locking the installation height of the second mounting part 42 and the lifting oil cylinder 2 on the boom 1, and further locking the adjustment range of the paving thickness, which is beneficial to improving the paving stability.

[0041] With such a setting, by unlocking and locking the locking component 5, the mounting seat 4 can rotate relative to the boom 1 to adjust the installation height of the lifting oil cylinder 2 on the boom 1, and further change the adjustment range of the paving thickness of the screed 3, without the need to replace the boom 1 or the lifting oil cylinder 2, with simple operation, saving time and effort.

[0042] In this solution, the mounting seat 4 includes a first mounting part 41, a second mounting part 42 and a bearing part 43. The first mounting part 41 and the second mounting part 42 are respectively arranged on both sides of the bearing part 43. Specifically, the first mounting part 41, the second mounting part 42 and the bearing part 43 can be set as a split and detachable structure, or can be set as an integral structure. Here, it is preferably an integral structure, which is integrally formed during processing and has relatively high structural stability.

[0043] Among them, the bearing part 43 is set as a strip structure. The first mounting part 41 and the second mounting part 42 are respectively located at both ends of the strip structure. The extending direction of the bearing part 43 (i.e., the connecting line direction of the first mounting part 41 and the second mounting part 42) is inclined relative to the first axis. Specifically, the included angle formed by the extending direction of the bearing part 43 and the first axis is 40 - 50 degrees, preferably 45 degrees. In this way, when the mounting seat 4 is connected to the boom 1, the bearing part 43 not only has good structural stability, but also can make the second mounting part 42 deviate from the first axis to the greatest extent, and further change the adjustment range of the paving thickness of the screed 3 to the greatest extent.

[0044] As Figure 3 and Figure 5 shown, the cross-sectional area of the bearing part 43 gradually decreases along the direction from the first mounting seat 4 to the second mounting seat 4. For example, the bearing part 43 is set as an oblique frustum of a cone. In this way, the bearing surface of the bearing part 43 close to the boom 1 is large, and the bearing surface close to the lifting oil cylinder 2 is small, which is beneficial to maximizing the support strength while reducing the support load, can not only reduce the structural volume, but also improve the connection stability of the mounting seat 4.

[0045] In some embodiments, the second mounting portion 42 can rotate relative to the lifting cylinder 2 about the second axis. For example, the second mounting portion 42 is rotatably connected to the lifting cylinder 2 through a bearing. Moreover, the first axis and the second axis are parallel and offset. In this way, when adjusting the rotation angle (mounting angle) of the mounting seat 4 relative to the boom 1, the lifting cylinder 2 only changes in height relative to the boom 1, and does not axially shift along the first axis, which can keep the lifting cylinder 2 perpendicular to the second axis and the first axis all the time, ensuring the connection stability between the boom 1 and the lifting cylinder 2.

[0046] Here, the offset amount between the first axis and the second axis is 40 - 60 mm, that is, the minimum distance between the first axis and the second axis is 40 - 60 mm, preferably 50 mm.

[0047] As Figure 3 shown, the first mounting portion 41 is disposed through the boom 1 in the thickness direction of the boom 1. Specifically, a circular hole penetrating through the thickness is provided on the boom 1, and the first mounting portion 41 is circular and located within the circular hole. When the first mounting portion 41 rotates relative to the boom 1, the circular hole can provide support for the first mounting portion 41, thereby facilitating the adjustment of the rotation angle of the mounting seat 4 relative to the boom 1. The second mounting portion 42 is disposed through one end of the lifting cylinder 2 in the radial direction of the lifting cylinder 2 (this radial direction is perpendicular to the axial telescopic direction of the lifting cylinder 2). Specifically, an opening is provided at one end of the lifting cylinder 2, and a bearing is provided within the opening. The second mounting portion 42 is circular and disposed within the bearing. Among them, the radius of the first mounting portion 41 is greater than the radius of the second mounting portion 42. In this way, the support surface and installation strength of the first mounting portion 41 are large, and the weight and occupied volume of the second mounting portion 42 are small, which is beneficial to improving the structural strength.

[0048] In some preferred solutions, a boss 44 is provided on the end surface of the first mounting portion 41 away from the second mounting portion 42 (the bearing portion 43). The shape of the boss 44 is preferably a regular hexagon, and can also be a square or a regular pentagon, which is beneficial for the user to screw the first mounting portion 41 with a wrench, thereby driving the mounting seat 4 to rotate relative to the boom 1.

[0049] Adjustment marks are provided on the boom 1 and / or the mounting seat 4. When adjusting the mounting angle of the mounting seat 4 on the boom 1, the user can obtain the rotation angle of the mounting seat 4 relative to the boom 1 and obtain the mounting height of the second mounting portion 42 of the mounting seat 4 on the boom 1 by viewing the adjustment marks.

[0050] In this solution, the locking assembly 5 includes a plurality of bolts arranged around the first axis, and each bolt passes through the boom 1 and the mounting base 4, which not only realizes the connection between the mounting base 4 and the boom 1, but also restricts the mounting base 4 from rotating around the first axis relative to the boom 1. Specifically, an annular edge 45 is provided on the outer periphery of the first mounting portion 41. When the first mounting portion 41 passes through the boom 1, the annular edge 45 abuts against the side surface of the boom 1. A plurality of first mounting holes 46 are provided on the annular edge 45, and the plurality of first mounting holes 46 are arranged around the first axis; a plurality of second mounting holes are provided on the boom 1, and the plurality of first mounting holes 46 and the plurality of second mounting holes are arranged in one-to-one correspondence. The bolts are fixedly connected in the first mounting holes 46 and the second mounting holes, thereby connecting the boom 1 and the mounting base 4. Here, the first mounting holes 46 and the second mounting holes can be set as threaded holes for threaded connection of the bolts.

[0051] When it is necessary to change the adjustment range of the paving thickness, the plurality of bolts are disassembled from the boom 1 and the mounting base 4. After rotating the mounting base 4 to the required angle, the plurality of bolts are then connected to the boom 1 and the mounting base 4, and the relative position adjustment between the lifting cylinder 2 and the boom 1 can be realized.

[0052] In a specific solution, the above adjustment marks can be set at the positions of the plurality of first mounting holes 46 and the plurality of second mounting holes. For example, one of the first mounting holes 46 is provided with an indication mark, and the plurality of second mounting holes are provided with an angle mark and a height mark. By aligning the first mounting hole 46 with the second mounting hole, the corresponding adjustment marks (i.e., the indication mark, the angle mark, and the height mark) can be obtained.

[0053] In this solution, the first mounting portion 41 can be set as an integral structure or a split structure. Here, the split structure is described. The first mounting portion 41 includes a fixed part and a rotating part. The fixed part is fixedly connected to the boom 1, for example, fixed by the above-mentioned plurality of bolts; the rotating part is rotatably connected to the fixed part around the first axis, and the rotating part rotates synchronously with the second mounting portion 42. By rotating the rotating part relative to the fixed part, the second mounting portion 42 can be driven to rotate around the first axis. Among them, the locking assembly 5 includes a locking pin that simultaneously passes through the fixed part and the rotating part, which can restrict the rotating part from rotating relative to the fixed part, and further restrict the second mounting portion 42 from rotating relative to the boom 1. In this way, when it is necessary to change the adjustment range of the paving thickness, removing the locking pin can make the rotating part rotate around the first axis relative to the fixed part, thereby adjusting the installation height of the second mounting portion on the boom, without the need to disassemble and assemble the entire mounting base, which is simple in operation, time-saving and labor-saving.

[0054] In combination with the above solution, the second mounting part can also rotate relative to the lifting oil cylinder about the second axis. Specifically, one end of the lifting oil cylinder 2 is provided with an opening, a bearing is arranged in the opening, and the second mounting part 42 is arranged radially through the bearing along the lifting oil cylinder 2.

[0055] In order to facilitate the adjustment of the installation angle of the mounting seat 4 on the boom 1, the paving thickness adjustment mechanism of the present application further includes a driving component. The driving component is connected to the boom 1 and is in transmission connection with the first mounting part 41. By driving the first mounting part 41 to rotate relative to the boom 1 about the first axis, it is beneficial to save labor costs. Specifically, the driving component can be provided with a hydraulic motor or an electric motor. Moreover, the locking component 5 is arranged on the driving component, that is, the locking component 5 is an internal structure of the driving component. During use, the driving component can automatically remain in the corresponding position to limit the rotation of the mounting seat 4 relative to the boom 1.

[0056] The embodiment of the present application provides a paver, which includes the paving thickness adjustment mechanism in the above embodiment. With this setting, by unlocking and locking the locking component 5, the mounting seat 4 can rotate relative to the boom 1 to adjust the installation height of the lifting oil cylinder 2 on the boom 1, and further change the adjustment range of the paving thickness of the screed 3, without replacing the boom 1 or the lifting oil cylinder 2, with simple operation and time and labor saving.

[0057] The basic principle of the present application has been described above in combination with specific embodiments. However, it should be noted that the advantages, advantages, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, advantages, effects, etc. are essential for each embodiment of the present application. In addition, the above disclosed specific details are only for the purpose of illustration and easy understanding, rather than limitations. The above details do not limit the present application to necessarily adopt the above specific details to implement.

[0058] The block diagrams of the devices, apparatuses, equipment, and systems involved in the present application are only illustrative examples and do not intend to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open-ended words, meaning "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used herein refer to the word "and / or", and can be used interchangeably with it, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to", and can be used interchangeably with it.

[0059] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only for more clearly elaborating the technical solutions and cannot be used to limit the protection scope of the present application.

[0060] The above description has been given for purposes of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A paving thickness adjustment mechanism, characterized in that: include: Boom and lift cylinders; A mounting seat, comprising a first mounting portion connected to the boom and a second mounting portion connected to the lifting cylinder, wherein the first mounting portion can rotate relative to the boom around a first axis, and a line connecting the first mounting portion and the second mounting portion forms an angle with the first axis; The locking assembly is arranged on the first mounting portion and the upper arm and can limit the first mounting portion from rotating relative to the upper arm around the first axis to lock the installation height of the second mounting portion relative to the upper arm.

2. The paving thickness adjustment mechanism according to claim 1, characterized in that: The mounting seat includes a bearing portion, the first mounting portion and the second mounting portion are respectively arranged on two sides of the bearing portion, and an extending direction of the bearing portion is inclined relative to the first axis.

3. The paving thickness adjustment mechanism according to claim 2, characterized in that: The angle formed between the extension direction of the bearing portion and the first axis is 40-50 degrees; And / or, the cross-sectional area of ​​the bearing portion gradually decreases along the direction from the first mounting portion to the second mounting portion; And / or, the first mounting portion, the second mounting portion and the bearing portion are integrally formed.

4. The paving thickness adjustment mechanism according to claim 3, characterized in that: The bearing portion is configured in an oblique truncated cone shape.

5. The paving thickness adjustment mechanism according to claim 1, characterized in that: The second mounting portion can rotate relative to the lifting cylinder around a second axis, and the first axis and the second axis are parallel and staggered.

6. The paving thickness adjustment mechanism according to claim 5, characterized in that: The misalignment between the first axis and the second axis is 40-60 mm; And / or, the first mounting portion is penetrated in the boom along the thickness direction of the boom, the second mounting portion is penetrated at one end of the lifting cylinder along the radial direction of the lifting cylinder, and the radius of the first mounting portion is greater than the radius of the second mounting portion.

7. The paving thickness adjustment mechanism according to any one of claims 1 to 6, characterized in that: A boss that can be screwed with a wrench is arranged on the end surface of the first mounting portion away from the second mounting portion; and / or an adjustment mark is arranged on the upper arm and / or the mounting seat to indicate the rotation angle of the mounting seat relative to the upper arm.

8. The paving thickness adjustment mechanism according to any one of claims 1 to 6, characterized in that: The mounting seat is provided with a plurality of first mounting holes around the first axis, and the upper arm is provided with a plurality of second mounting holes corresponding to the plurality of first mounting holes one by one; the locking assembly includes a plurality of bolts, each of which is connected to the first mounting hole and the second mounting hole; And / or, the paving thickness adjustment mechanism also includes a driving assembly, which is connected to the upper arm and is transmission-connected to the first mounting part to drive the first mounting part to rotate relative to the upper arm around the first axis; the locking assembly is arranged on the driving assembly.

9. The paving thickness adjustment mechanism according to any one of claims 1 to 6, characterized in that: The first mounting portion comprises: A fixing member, fixedly connected to the upper arm; a rotating member, connected to the fixed member so as to be rotatable about the first axis, and driving the second mounting portion to rotate relative to the fixed member about the first axis when the rotating member rotates; Wherein, the locking assembly includes a locking pin penetrating the fixed member and the rotating member to limit the rotating member from rotating relative to the fixed member.

10. A paver, characterized in that: It comprises a paving thickness adjustment mechanism as described in any one of claims 1-9.

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