Strength detection machine for cement stable layer of highway engineering

Abstract

The utility model discloses a strength detection machine for a cement stable layer of highway engineering. The strength detection machine comprises a working frame, a supporting part and a protective net, a collecting frame is arranged on the bottom side of the working frame, a stamping device is arranged on the top side of the working frame, and a traction structure is arranged on the stamping device in a matched mode. The supporting part comprises two supporting plates and a supporting table fixedly connected to the working frame, the middles of the two supporting plates are rotationally connected with the supporting table, rotating adjusting parts are arranged at the connected ends of the two supporting plates, and the traction structure is only used for driving the two supporting plates to rotate by a certain radian around the rotating connecting point of the two supporting plates through the two rotating adjusting parts when moving upwards; the protective net is arranged on the working frame, the supporting plate is located in the protective net, and the working frame is provided with a slag discharging channel communicated between the collecting frame and the supporting plate. Compared with the prior art, generated residues are basically guided into the collecting frame from the residue discharging channel to be collected, the working efficiency of residue collection is improved, and the working content in the residue collection process is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of highway detection equipment, in particular to a strength detection machine for a water-stable layer of a highway engineering project. Background Art

[0002] The water-stabilizing layer has high strength, rigidity and stability. For asphalt pavement, the water-stabilizing layer is the main load-bearing layer of the entire road structure. It is an important structure to ensure the stability of the entire road structure and can effectively transfer the vertical load of the road to the roadbed.

[0003] Compressive strength is one of the important testing indicators of water-stabilizing layer. The raw materials of the water-stabilizing layer are processed into test pieces, and then their compressive strength is tested by a strength tester.

[0004] The patent document with application number CN202021797041.5 discloses a roadbed and pavement material strength testing device, which belongs to the field of highway testing technology and includes a base, a universal wheel is fixedly connected to the bottom of the base, fixed plates are fixedly connected to the two ends of the outer side of the base, a hydraulic rod 1 is fixedly connected to the bottom of the fixed plate, a chassis is fixedly connected to the bottom of the hydraulic rod 1, a tray is movably connected to the top of the base, and a protective net is fixedly connected to the top of the base near the outer side of the tray.

[0005] When workers are testing pavement materials with strength testing devices, the protective net can prevent flying debris from the repeated pressure strength tests of the pressure plate on the pavement materials from splashing onto the workers, thereby achieving better protection; however, the collection of the debris is relatively troublesome, and the workers need to reach into the protective net to clean the debris. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a strength testing machine for water-stabilizing layers in highway engineering, so as to solve the problem in the prior art that the collection of residues is relatively troublesome and requires workers to reach into the protective net to clean the residues.

[0007] To achieve the above purpose, the utility model adopts the following technical solution: a strength detection machine for water-stabilizing layer of highway engineering, comprising:

[0008] A working frame, wherein a collecting frame is arranged at the bottom side of the working frame, a punch moving in the vertical direction is arranged at the top side of the working frame, and a traction structure moving synchronously along the punch is arranged on the punch;

[0009] A support part, wherein the support part is arranged on the working frame and is located between the collecting frame and the punch, and the support part includes two support plates and a support table fixedly connected to the working frame, the two support plates are spliced ​​and arranged on the same plane at the top of the support table, the middle parts of the two support plates are rotatably connected to the support table, and the ends of the two support plates connected are each provided with a rotation adjustment part matched with the traction structure, and the traction structure is only used to drive the two support plates to rotate a certain arc around their rotation connection points through the two rotation adjustment parts when moving upward;

[0010] The protective net is arranged on the working frame and the supporting plate is located inside the protective net. The working frame is provided with a slag discharge channel which is connected between the collecting frame and the supporting plate.

[0011] Working principle:

[0012] The specimen is placed on two support plates, and the support table is used to stably support the two support plates, so as to provide stable support for the specimen when stamping; the punch is started, and the punch moves downward, and the traction structure moves downward with the punch until the punch stamps the specimen and the traction structure passes over the two rotating adjustment parts to complete the stamping of the specimen; the punch then moves upward, and the traction structure moves upward with the punch, and during the upward movement of the traction structure, the two support plates will be driven by the two rotating adjustment parts to rotate a certain arc around their rotating connection points, and the two support plates will be changed from a horizontal state to an inclined state to guide the residue on the support plates from the slag discharge channel into the collection frame for collection; at the same time, the residue splashed around during the stamping process and hit the inner wall of the protective net is basically guided from the slag discharge channel into the collection frame for collection.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] This strength testing machine utilizes the power of the punch during the punching process to coordinate the traction structure with the two rotating adjustment parts. At the same time, it combines the arrangement of the two support plates and the support platform, as well as the design of the protective net to basically guide the generated residue from the slag discharge channel into the collection frame for collection, thereby improving the work efficiency of residue collection and simplifying the work content during the residue collection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 for Figure 1 A partial schematic diagram after cutting open the protective net;

[0017] Figure 3 for Figure 1 A partial cross-sectional view of

[0018] Figure 4 for Figure 2A partial cross-sectional view of the middle traction structure;

[0019] Figure 5 for Figure 3 A partial enlarged view of part A in the middle.

[0020] The figure marks in the drawings of the specification include: working frame 1, supporting part 2, supporting plate 21, supporting platform 22, protective net 3, collecting frame 4, punch 5, traction structure 6, connecting part 61, driving part 62, elastic support member 63, rotation adjustment part 7, slag discharge channel 8, reset buffer structure 9, reset spring 91, buffer spring 92, buffer block 93, support rod 10, sealing plate 11. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below through specific implementation methods:

[0022] like Figure 1 as well as Figure 2 As shown, an embodiment of the utility model proposes a strength testing machine for a water-stabilizing layer of a highway engineering, comprising a working frame 1, a supporting part 2 and a protective net 3; wherein, a collecting frame 4 is arranged at the bottom side of the working frame 1, a punch 5 moving in a vertical direction is arranged at the top side of the working frame 1, and a traction structure 6 moving synchronously therewith is arranged on the punch 5; the supporting part 2 is arranged on the working frame 1 and is located between the collecting frame 4 and the punch 5, and the supporting part 2 comprises two supporting plates 21 and a supporting platform 22 fixedly connected to the working frame 1, The two support plates 21 are spliced ​​and coplanarly arranged at the top of the support platform 22. The middle parts of the two support plates 21 are rotatably connected to the support platform 22. The connected ends of the two support plates 21 are provided with a rotation adjustment part 7 that cooperates with the traction structure 6. The traction structure 6 is only used to drive the two support plates 21 to rotate a certain arc around their rotation connection points through the two rotation adjustment parts 7 when moving upward; the protective net 3 is arranged on the working frame 1 and the support plate 21 is located in the protective net 3, and the working frame 1 is provided with a slag discharge channel 8 that is connected between the collection frame 4 and the support plate 21.

[0023] When using:

[0024] The specimen is placed on the two support plates 21, and the support platform 22 is used to stably support the two support plates 21, so as to provide stable support for the specimen when stamping; the punch 5 is started, and the punch 5 moves downward, and the traction structure 6 moves downward with the punch 5 until the punch 5 stamps the specimen, and the traction structure 6 passes over the two rotating adjustment parts 7 to complete the stamping of the specimen; the punch 5 then moves upward, and the traction structure 6 moves upward with the punch 5. During the upward movement of the traction structure 6, the two support plates 21 will be driven by the two rotating adjustment parts 7 to rotate around their rotating connection points by a certain arc, and the two support plates 21 will be changed from a horizontal state to an inclined state to guide the residue on the support plates 21 from the slag discharge channel 8 into the collection frame 4 for collection; at the same time, the residue splashed around during the stamping process hits the inner wall of the protective net 3 and is basically guided from the slag discharge channel 8 into the collection frame 4 for collection.

[0025] This strength testing machine utilizes the power of the punch 5 during the punching process to coordinate the traction structure 6 with the two rotating adjustment parts 7. At the same time, combined with the arrangement of the two support plates 21 and the support platform 22, and the design of the protective net 3, the generated residue is basically introduced from the slag discharge channel 8 into the collection frame 4 for collection, thereby improving the work efficiency of residue collection and simplifying the work content during the residue collection process.

[0026] It is worth noting that the two support plates 21 are not in complete contact, and a certain space may be left between them to allow them to rotate freely.

[0027] In order to facilitate a better understanding of the present technology, multiple structures will be further refined below.

[0028] like Figure 2 as well as Figure 4 As shown, according to another embodiment of the utility model, a strength testing machine for a water-stabilizing layer of a highway engineering project, wherein the traction structure 6 includes a connecting portion 61 and a driving portion 62; the connecting portion 61 is connected to the punch 5 and a mounting hole is formed at its bottom that penetrates in a horizontal direction; there are two driving portions 62 and their facing ends are slidably arranged in the mounting holes and are connected by elastic support members 63, and the separated ends of the two driving portions 62 correspond one-to-one with the two rotating adjustment portions 7.

[0029] In this embodiment:

[0030] Because the punch 5 includes a punching cylinder connected to the workbench 1 and a punching plate connected to the bottom of the punching cylinder, the connecting part 61 is designed to be an inverted "T"-shaped connecting rod, the top end of the connecting rod is fixedly connected to the outer wall of the punching plate, and the mounting hole is opened on the horizontal section of the bottom end of the connecting rod, so as to reasonably connect the two driving parts 62 to correspond one by one with the two rotating adjustment parts 7, and will not cause obstacles to the punching process of the specimen by the punching plate; the cooperation between the two driving parts 62 and the two rotating adjustment parts 7 has a very small effect on the punching data of the punching plate on the specimen after testing, which can be ignored.

[0031] The elastic support member 63 may be a spring connected between the two driving parts 62 .

[0032] When the traction structure 6 moves downward, the two driving parts 62 slide against the two rotating adjustment parts 7 to make the two driving parts 62 slide into the installation holes, the elastic support 63 contracts, and the two driving parts 62 pass over the two rotating adjustment parts 7, so that the punch 5 continues to move downward to complete the punching work, and the two driving parts 62 move away from each other to reset under the resetting action of the elastic support 63; after the punching is completed, the punch 5 drives the traction structure 6 to move upward, and the two driving parts 62 will drive the two support plates 21 to rotate a certain arc around their rotating connection points through the two rotating adjustment parts 7. In the process of the support plate 21 being converted from a horizontal state to an inclined state, the residue on it is introduced from the slag discharge channel 8 into the collection frame 4 for collection; the two driving parts 62 then disengage from the two rotating adjustment parts 7, and the two support plates 21 rotate in the opposite direction under the action of their respective gravity to reset, and are spliced ​​on the support platform 22 again to be located on the same horizontal plane.

[0033] The following conditions need to be met between the two driving parts 62, the two rotating adjustment parts 7 and the mounting holes in order to perform the above operations more smoothly: when not in contact, the distance between the two rotating adjustment parts 7 is greater than the length of the mounting hole and less than the distance between the two driving parts 62 at their ends.

[0034] In order to make the driving part 62 and the rotation adjustment part 7 cooperate better, the two separated ends of the driving parts 62 are formed with a first smooth arc surface, and the two rotation adjustment parts 7 are formed with a second smooth arc surface that cooperates with the corresponding first smooth arc surface. In this way, when the driving part 62 and the rotation adjustment part 7 are in contact, the driving part 62 can react quickly without getting stuck.

[0035] In this embodiment:

[0036] The driving portion 62 is a driving column, and the separated ends of the two driving columns are both formed with the first smooth arc surface.

[0037] The two rotation adjustment parts 7 are both cylindrical rods, one end of which is fixedly connected to the outer side wall of the corresponding support plate 21 , and the outer wall of the cylindrical rod is the second smooth arc surface.

[0038] In order to enable the support plate 21 to be quickly and safely reset, Figure 3 and Figure 5 As shown, according to another embodiment of the utility model, a strength testing machine for a water-stabilizing layer of a highway engineering project is provided, wherein a reset buffer structure 9 is provided between the joint ends of the two support plates 21 and the support platform 22; when the support plate 21 is converted from a horizontal state to an inclined state, the residue on it is introduced from the slag discharge channel 8 into the collection frame 4 for collection, and then the two driving parts 62 are disengaged from the two rotating adjustment parts 7. At this time, the reset buffer structure 9 quickly rotates the support plate 21 in the opposite direction to reset it and provides buffering when the support plate 21 contacts the support platform 22, so that the support plate 21 can be reset safely and quickly.

[0039] Based on the above scheme:

[0040] The reset buffer structure 9 includes a reset portion and a buffer portion arranged between the support plate 21 and the support platform 22; the reset portion includes a reset spring 91 connected between the support plate 21 and the support platform 22; the buffer portion includes a buffer spring 92 connected to the support platform 22 and a buffer block 93 connected to the buffer spring 92, and the buffer block 93 is used to elastically offset the corresponding support plate 21.

[0041] Specifically, a reset spring 91 is used to reset the support plate 21, and a buffer block 93 is used in cooperation with a buffer spring 92 to buffer the support plate 21; wherein the buffer block 93 can be made of elastic material, such as rubber material.

[0042] The reset spring 91 is matched with a first mounting groove provided on the support platform 22, and the reset spring 91 is arranged in the first mounting groove. The reset spring 91 is arranged reasonably through the first mounting groove.

[0043] The buffer spring 92 is matched with a second mounting groove opened on the support platform 22 . The buffer spring 92 is arranged in the second mounting groove and a limiting portion for limiting the sliding range of the buffer block 93 is arranged between the inner wall of the second mounting groove and the buffer block 93 . The buffer spring 92 and the buffer block are reasonably arranged through the second mounting groove, and the limiting part is used to limit the sliding range of the buffer block 93; specifically, the limiting part includes a limiting groove opened in the vertical direction on the inner wall of the second mounting groove and a limiting block slidably arranged in the limiting groove, and the limiting block is fixedly connected to the buffer block 93; the cooperation between the limiting groove and the limiting block is used to limit the sliding range of the buffer block 93 on the one hand, and to guide the sliding of the buffer block 93 on the other hand so that the buffer block 93 can slide more stably; wherein, when the support plate 21 changes from a horizontal state to an inclined state, after the support plate 21 moves away from the support platform 22, the top of the buffer block 93 emerges from the notch of the second mounting groove; when the support plate 21 is in the resetting process, the support plate 21 first contacts with the top of the buffer block 93, and then presses the buffer block 93 into the second mounting groove, and the support plate 21 contacts with the support platform 22 again to effectively perform buffering.

[0044] like Figure 2 and Figure 3 As shown, according to another embodiment of the utility model, a strength testing machine for water-stabilizing layers of highway engineering is provided, wherein the middle portion of the bottom side of each support plate 21 is rotatably connected to a support rod 10 fixedly connected to the outer wall of a support platform 22.

[0045] In this embodiment, the two support rods 10 are arranged at an angle. The support rods 10 support the support plate 21 on the one hand, and serve as the rotation point of the support plate 21 on the other hand.

[0046] like Figure 2 and Figure 3 As shown, according to another embodiment of the utility model, a strength testing machine for a water-stabilizing layer of a highway engineering project is provided, wherein a taking hole is opened in the middle of the protective net 3, and a sealing plate 11 is slidably arranged on the protective net 3 for sealing or opening the taking hole.

[0047] A handle is also provided on the outer wall of the sealing plate 11, and the sealing plate 11 is slid by the handle to control the sealing state of the taking hole, so as to facilitate the taking and placing of the test piece and the protection net 3 can effectively protect it.

[0048] like Figure 1 , Figure 2 and Figure 3 As shown, according to another embodiment of the utility model, a strength testing machine for water-stabilizing layers of highway engineering is provided, wherein the collection frame 4 is slidably arranged on the bottom side of the working frame 1 in a drawer manner, and the slag discharge channel 8 can be a plurality of slag discharge holes arranged circumferentially on the outer side of the support platform 22.

[0049] When using:

[0050] Open the sealing plate 11, place the test piece on the two supporting plates 21, and then close the sealing plate 11;

[0051] The punch 5 is started to move downward, the traction structure 6 moves downward, the two driving columns pass through the two cylindrical rods, and the punch 5 continues to move downward to complete the punching. The flying waste chips hit the inner wall of the protection net 3 and are introduced into the collection frame 4 through the slag discharge hole for collection;

[0052] The rear punch 5 moves upward, the traction structure 6 moves upward, and the two driving columns are blocked by the two cylindrical rods to drive the two support plates 21 to rotate a certain arc around the respective connected support rods 10 to guide the residue from the slag discharge hole into the collection frame 4 for collection; the rear two driving columns are disengaged from the two cylindrical rods, and under the action of the reset spring 91, the support plate 21 rotates in the opposite direction to reset, and the buffer block 93 buffers the reset of the support plate 21;

[0053] After the support plate 21 is reset, the next operation can be performed. After repeated operations for multiple times, the collection frame 4 can be slid out to clean the residues collected in the collection frame 4.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A strength testing machine for water-stabilizing layers in highway engineering, characterized in that: include: A working frame, wherein a collecting frame is arranged at the bottom side of the working frame, a punch moving in the vertical direction is arranged at the top side of the working frame, and a traction structure moving synchronously along the punch is arranged on the punch; A support part, wherein the support part is arranged on the working frame and is located between the collecting frame and the punch, and the support part includes two support plates and a support table fixedly connected to the working frame, the two support plates are spliced ​​and arranged on the same plane at the top of the support table, the middle parts of the two support plates are rotatably connected to the support table, and the ends of the two support plates connected are each provided with a rotation adjustment part matched with the traction structure, and the traction structure is only used to drive the two support plates to rotate a certain arc around their rotation connection points through the two rotation adjustment parts when moving upward; The protective net is arranged on the working frame and the supporting plate is located inside the protective net. The working frame is provided with a slag discharge channel which is connected between the collecting frame and the supporting plate.

2. A strength testing machine for water-stabilizing layer in highway engineering according to claim 1, characterized in that: The traction structure comprises: A connecting part, the connecting part is connected to the punch and a mounting hole is formed at the bottom thereof and passes through in a horizontal direction; The driving parts are two and their facing ends are both slidably arranged in the mounting holes and connected through elastic support members. The separated ends of the two driving parts are matched with the two rotation adjustment parts in a one-to-one correspondence.

3. A strength testing machine for water-stabilizing layer of highway engineering according to claim 2, characterized in that: When not in contact, the distance between the two rotation adjustment parts is greater than the length of the mounting hole and less than the distance between the two drive parts' separated ends.

4. A strength testing machine for water-stabilizing layer of highway engineering according to claim 3, characterized in that: The separated ends of the two driving parts are both formed with a first smooth arc surface, and the two rotation adjustment parts are both formed with a second smooth arc surface matching the corresponding first smooth arc surface.

5. The strength testing machine for water-stabilizing layer of highway engineering according to claim 1 is characterized by: A reset buffer structure is provided between the spliced ​​ends of the two support plates and the support platform.

6. A strength testing machine for water-stabilizing layer in highway engineering according to claim 5, characterized in that: The resetting and buffering structure comprises a resetting portion and a buffering portion arranged between the supporting plate and the supporting platform; The reset portion includes a reset spring connected between the support plate and the support platform; The buffer part includes a buffer spring connected to the support platform and a buffer block connected to the buffer spring, and the buffer block is used for elastically resisting against the corresponding support plate.

7. A strength testing machine for water-stabilizing layer of highway engineering according to claim 6, characterized in that: The return spring is matched with a first installation groove opened on the support platform, and the return spring is arranged in the first installation groove.

8. The strength testing machine for water-stabilizing layer of highway engineering according to claim 6 is characterized by: The buffer spring is matched with a second installation groove opened on the support platform, the buffer spring is arranged in the second installation groove, and a limiting portion for limiting the sliding range of the buffer block is arranged between the inner wall of the second installation groove and the buffer block.

9. The strength testing machine for water-stabilizing layer of highway engineering according to claim 1 is characterized by: A support rod fixedly connected to the outer wall of the support platform is rotatably connected to the middle part of the bottom side of each support plate.

10. The strength testing machine for water-stabilizing layer of highway engineering according to claim 1, characterized in that: A taking hole is opened in the middle of the protection net, and a sealing plate for sealing or opening the taking hole is slidably arranged on the protection net.

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