Highway engineering raw material test detection device

Abstract

The invention discloses a highway engineering raw material test detection device, and relates to the field of material detection, the highway engineering raw material test detection device comprises a rack, a pressure bearing plate, a case and a mounting rack, the case is fixedly mounted on the top of the rack, the pressure bearing plate is arranged in the case and fixedly mounted on the rack, and the mounting rack is arranged on the top of the pressure bearing plate and is used for mounting a test tool of a test raw material; the mounting seat is mounted on the inner wall of the case; the first sliding seat is arranged on one side of the mounting seat, and one side of the first sliding seat is connected with a first guide part used for limiting the first sliding seat to move in the height direction of the mounting seat; according to the highway engineering raw material test detection device, high-speed impact simulation and accurate compressive strength detection of raw materials can be achieved through the arranged first limiting mechanism and second limiting mechanism, and during impact strength detection, high-speed movement of a test tool is achieved through the speed increasing effect of a transmission belt; therefore, the high-speed impact test on the raw material is effectively simulated.

Description

Technical Field

[0001] The invention relates to material detection technology, in particular to a highway engineering raw material test detection device. Background Art

[0002] During the construction of highway projects, in order to improve the service life of the highway, it is necessary to test and inspect the raw materials, such as asphalt and asphalt mixture, concrete and cement stabilized soil, for compressive strength and impact strength testing. The compressive strength test is intended to evaluate the mechanical properties of the raw materials under compression to ensure that they can withstand various loads during the use of the highway, thereby ensuring the stability and durability of the highway project. The impact strength test is intended to evaluate the material's ability to resist damage when subjected to impact loads.

[0003] A Chinese invention patent with the authorization announcement number CN118362393B discloses a highway engineering raw material test and detection pressurization device, which includes a column through a detection mechanism, and the four corners of the top of the base are respectively vertically connected to the columns, and a top plate is provided on the top of the base, and the top plate is fixedly connected to the four columns. A hydraulic cylinder and a hydraulic gauge are installed on the top plate, and four guide rods are vertically slidably connected to the top plate. A pressing plate is provided at the bottom of the top plate, and the output shaft at the bottom of the hydraulic cylinder extends to the outside of the top plate and is connected to the center of the top of the pressing plate. The bottoms of the four guide rods are respectively vertically connected to the top of the pressing plate. A support seat is installed at the center of the top of the base, and the support seat is located at the bottom of the pressing plate. The installation of the four columns is conducive to supporting the top plate, thereby realizing the installation of the hydraulic cylinder and the pressing plate. The cooperation of the four guide rods makes the pressing plate slide smoothly. The installation of the support seat facilitates the placement of the tested materials. The material extrusion detection is realized through the operation of the hydraulic cylinder, and the numerical value is observed through the hydraulic gauge to understand the maximum pressure value that the material can withstand.

[0004] When the device is testing the material, the moving end of the hydraulic cylinder is extended and retracted to drive the pressure plate to move, and the pressure plate squeezes the material to realize the compressive strength test of the material, and then to detect the maximum pressure value that the material can withstand. However, in different environments, the material is subjected to different stress conditions. For example, in reality, the material is easily affected by external impact force. Since the hydraulic cylinder has a large pressure-bearing capacity, the cylinder diameter and the amount of oil of the hydraulic cylinder need to be increased. When the cylinder diameter of the hydraulic cylinder is increased, the moving speed of the moving end of the hydraulic cylinder will be reduced, making it difficult to realize the test detection of the material under external high-speed impact, resulting in the inability to effectively complete the test detection of the material under different stress environments. There are certain limitations to the test detection of the material. Summary of the invention

[0005] The purpose of the present invention is to provide a highway engineering raw material testing and detection device to solve the problem that raw materials are subjected to different stress conditions in different environments in the prior art. In the existing raw material testing and detection device, the cylinder diameter and the amount of oil in the hydraulic cylinder need to be increased when the hydraulic cylinder has a larger pressure-bearing capacity. When the cylinder diameter of the hydraulic cylinder increases, the moving speed of the moving end of the hydraulic cylinder will decrease, and it is impossible to perform external impact force testing on the raw materials. Therefore, there are certain limitations in the testing and detection of raw materials.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a highway engineering raw material test and detection device, comprising a frame, a pressure plate, a chassis and a mounting frame, the chassis is fixedly mounted on the top of the frame, the pressure plate is arranged in the chassis and fixedly mounted on the frame, the mounting frame is arranged on the top of the pressure plate and is used to install a test tool for testing raw materials, and also includes:

[0007] A mounting base, which is mounted on the inner wall of the chassis;

[0008] A first slide seat is arranged on one side of the mounting seat, one side of the first slide seat is connected to a first guide member for limiting the first slide seat from moving along the height direction of the mounting seat, and the other side of the first slide seat is connected to a moving driving member for driving the first slide seat to move;

[0009] Two transmission wheels are rotatably mounted on the first slide seat, and the two transmission wheels are externally sleeved with a same transmission belt, one side of the transmission belt is fixedly connected to a first fixing member, and one side of the first fixing member is fixedly connected to the mounting seat;

[0010] A second slide seat is arranged on one side of the first slide seat, the bottom of the second slide seat is fixedly connected to the mounting frame, one side of the second slide seat is connected to a second guide member for limiting the second slide seat from moving along the height direction of the first slide seat, and the other side of the second slide seat is provided with a second fixing member, and the second fixing member is fixedly connected to a side of the transmission belt away from the first fixing member;

[0011] A first limiting mechanism capable of preventing the second fixing member from moving relative to the second slide seat;

[0012] The second limiting mechanism can prevent the second slide from moving relative to the first slide.

[0013] Furthermore, a third guide member for limiting the movement of the second fixing member along the height direction of the second slide seat is connected to one side of the second fixing member.

[0014] Further, the first limiting mechanism includes an A limit seat, a plurality of A through holes opened on the A limit seat, an A positioning pin, an A bracket and an A telescopic driving member;

[0015] One side of the A limit seat is fixedly connected to the second fixing member, one end of the A positioning pin passes through the A bracket and is slidably connected to the A bracket, one side of the A bracket is fixedly connected to the second sliding seat, and one end of the A positioning pin is connected to the A telescopic driving member used to drive the A positioning pin to move along its own axis. The A positioning pin can move until the A positioning pin portion is in one of the A through holes.

[0016] Furthermore, the first limiting mechanism and the second limiting mechanism together constitute a limiting assembly, and the limiting assembly can be switched between a first state and a second state. When the limiting assembly is in the first state, the limiting assembly blocks the second fixing member from moving relative to the second slide seat, and does not block the second slide seat from moving relative to the first slide seat.

[0017] When the limiting assembly is in the second state, the limiting assembly blocks the second slide seat from moving relative to the first slide seat, and does not block the second fixing member from moving relative to the second slide seat.

[0018] Further, the limiting assembly includes an A connecting seat, a B connecting seat, a C connecting seat, a C through hole opened on the A connecting seat, a D through hole opened on the C connecting seat, a C positioning pin and a D telescopic driving member;

[0019] One side of the A connecting seat is fixedly connected to the first sliding seat, one side of the B connecting seat is fixedly connected to the second sliding seat, one side of the C connecting seat is fixedly connected to the second fixing member, the outer wall of the C locating pin is slidably connected to the B connecting seat, and one side of the C locating pin is connected to the D telescopic driving member for driving the C locating pin to move along its own axis. The C locating pin can move until part of it is in the C through hole or the D through hole.

[0020] Furthermore, the second limiting mechanism includes a driving assembly, two B limit seats and two sliders. One side of the two B limit seats is fixedly connected to the second slider. The two B limit seats are each provided with a slot for inserting the slider. A slide groove is provided on the first slider. One side of the two sliders is each slidably connected to the inner wall of the slide groove. The other sides of the two sliders are respectively connected to the driving assembly. The driving assembly is used to drive the two sliders to slide along the inner wall of the slide groove and respectively insert into the slots on the two B limit seats.

[0021] Furthermore, the driving assembly includes a B telescopic driving member, a connecting plate and two inclined rods, one side of the connecting plate is hinged to the two inclined rods, one end of the two inclined rods away from the connecting plate is hinged to the two sliding blocks respectively, and the other side of the connecting plate is connected to the B telescopic driving member for driving the connecting plate to move along the height direction of the first slide seat.

[0022] Further, the second limiting mechanism includes a C limit seat, a plurality of B through holes opened on the C limit seat, a B positioning pin, a B bracket and a C telescopic driving member;

[0023] One side of the C limit seat is fixedly connected to the second slide seat, one end of the B locating pin passes through the B bracket and is slidably connected to the B bracket, one side of the B bracket is fixedly connected to the first slide seat, and one end of the B locating pin is connected to the C telescopic driving member for driving the B locating pin to move along its own axis. The B locating pin can move until the B locating pin part is in one of the B through holes.

[0024] Furthermore, a sensor is provided, and the sensor is used to monitor the moving distance of the second slide relative to the first slide and / or the moving distance of the second fixing member relative to the second slide.

[0025] Furthermore, the sensor adopts an infrared distance sensor or a displacement sensor.

[0026] Compared with the prior art, the highway engineering raw material test and detection device provided by the present invention can realize high-speed impact simulation and accurate compressive strength detection of raw materials by means of the first limiting mechanism and the second limiting mechanism. During the impact strength detection, the high-speed movement of the test tooling is realized by the speed increasing effect of the transmission belt, thereby effectively simulating the high-speed impact test of the raw materials.

[0027] By controlling the first limiting mechanism and the second limiting mechanism, the second limiting mechanism does not hinder the movement of the second slide relative to the first slide, and the first limiting mechanism hinders the movement of the second fixing member relative to the second slide. When the mobile driving member drives the first slide to move along the height direction of the mounting seat, the transmission belt drives the second fixing member to move relative to the second slide while moving with the second slide. The moving speed of the second fixing member is twice the moving speed of the moving end of the mobile driving member, thereby doubling the moving speed of the second fixing member, thereby doubling the moving speed of the test tooling, thereby effectively realizing the compressive strength test and impact strength test of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0029] Figure 1 A schematic diagram of a first partial structure provided for an embodiment of the present invention;

[0030] Figure 2 A schematic diagram of a side cross-sectional structure provided by an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of the overall external structure provided by an embodiment of the present invention;

[0032] Figure 4A schematic diagram of the cooperation of the mounting seat, the first sliding seat, the moving driving member and the first fixing member provided in an embodiment of the present invention;

[0033] Figure 5 A schematic diagram of the coordination of a first slide seat, a transmission wheel, a transmission belt, a first fixing member, and a second slide seat provided in an embodiment of the present invention;

[0034] Figure 6 A schematic diagram of the exploded structure of the first limiting mechanism and the second fixing member provided in an embodiment of the present invention;

[0035] Figure 7 A second partial structural schematic diagram provided for an embodiment of the present invention;

[0036] Figure 8 A third partial structural diagram provided for an embodiment of the present invention;

[0037] Fig. 9 The embodiment of the present invention provides Figure 2 A is an enlarged schematic diagram;

[0038] Fig.10 A schematic diagram of a partial top view and cross-section structure provided in an embodiment of the present invention.

[0039] Description of reference numerals:

[0040] 1. Frame; 2. Pressure plate; 3. Chassis; 4. Mounting frame; 5. Mounting seat; 6. First slide seat; 7. Mobile drive member; 8. Transmission wheel; 9. Transmission belt; 10. First fixing member; 11. Second slide seat; 12. Second fixing member; 13. First limiting mechanism; 131. A limit seat; 132. A through hole; 133. A positioning pin; 134. A bracket; 135. A telescopic drive member; 14. Second limiting mechanism; 141. B limit 142. Slider; 143. Telescopic drive member B; 144. Connecting plate; 145. Inclined rod; 146. Limiting seat C; 147. Through hole B; 148. Positioning pin B; 149. Bracket B; 1491. Telescopic drive member C; 15. Limiting assembly; 151. Connecting seat A; 152. Connecting seat B; 153. Connecting seat C; 154. Through hole C; 155. Through hole D; 156. Positioning pin C; 157. Telescopic drive member D. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0042] See also Figure 1 , Figure 2 , Figure 3 and Fig. 9, a highway engineering raw material test and detection device, comprising a frame 1, a pressure plate 2, a chassis 3 and a mounting frame 4, the chassis 3 is fixedly mounted on the top of the frame 1, the pressure plate 2 is arranged in the chassis 3 and fixedly mounted on the frame 1, the mounting frame 4 is arranged on the top of the pressure plate 2 and is used to install a test fixture for testing raw materials, when the raw materials are subjected to pressure testing, in order to improve the detection accuracy, a pressure sensor can be installed on the lower surface of the mounting frame 4, and an extrusion piece for extruding the raw materials, i.e., a test fixture, can be installed at the bottom of the pressure sensor, so that the reaction force transmitted by the extrusion force is obtained by the pressure sensor to obtain the extrusion force applied to the raw materials; when the raw materials are subjected to impact resistance testing, an impact piece, i.e., a test fixture, can be fixedly installed on the lower surface of the mounting frame 4 by bolts;

[0043] It also includes: a mounting base 5, which is mounted on the inner wall of the chassis 3;

[0044] A first slide 6 is arranged on one side of the mounting seat 5, and a first guide member for limiting the movement of the first slide 6 along the height direction of the mounting seat 5 is connected to one side of the first slide 6, and the first guide member includes a slide rail fixedly mounted on the mounting seat 5 and a slide fixedly mounted on the first slide 6, and one side of the slide is slidably connected to the slide rail, and the other side of the first slide 6 is connected to a moving drive member 7 for driving the first slide 6 to move, and the moving drive member 7 is a hydraulic cylinder, and the moving end of the moving drive member 7 is fixedly connected to the first slide 6, and the fixed end of the moving drive member 7 is fixedly connected to the mounting seat 5;

[0045] Two transmission wheels 8 are rotatably mounted on the first slide 6. The two transmission wheels 8 are covered with a same transmission belt 9. One side of the transmission belt 9 is fixedly connected to a first fixing member 10. One side of the first fixing member 10 is fixedly connected to the mounting seat 5.

[0046] The second slide 11 is arranged on one side of the first slide 6, the bottom of the second slide 11 is fixedly connected to the mounting frame 4, one side of the second slide 11 is connected to a second guide member for limiting the second slide 11 from moving in the height direction of the first slide 6, the first guide member includes a slide rail fixedly mounted on the first slide 6 and a slide frame fixedly mounted on the second slide 11, one side of the slide frame is slidably connected to the slide rail, the other side of the second slide 11 is provided with a second fixing member 12, and the second fixing member 12 is fixedly connected to the side of the transmission belt 9 away from the first fixing member 10;

[0047] A first limiting mechanism 13, which can prevent the second fixing member 12 from moving relative to the second sliding seat 11;

[0048] The second limiting mechanism 14 can prevent the second slide 11 from moving relative to the first slide 6 .

[0049] In the construction of highway projects, in order to improve the service life of highways, it is necessary to test and inspect raw materials. Most existing testing devices use hydraulic cylinders to drive extrusion parts to move and extrude materials to achieve compressive strength testing of materials. However, raw materials have different stress conditions. In existing raw material testing and inspection devices, the cylinder diameter and oil volume of the hydraulic cylinder must be increased when the hydraulic cylinder has a large pressure bearing capacity. When the cylinder diameter of the hydraulic cylinder is increased, the moving speed of the moving end of the hydraulic cylinder will be reduced, which makes it difficult to simulate the high-speed impact on the raw materials, that is, it is difficult to achieve external impact force testing of the materials, and there are certain limitations for the detection of raw materials.

[0050] To this end, the present application can selectively install different test fixtures at the bottom of the mounting frame 4 according to the compressive strength test or impact strength test of the raw materials. During the test, the raw materials are placed on the pressure plate 2. When the compressive strength test of the raw materials is performed, the second limiting mechanism 14 is used to prevent the second slide 11 from moving relative to the first slide 6, and the first limiting mechanism 13 is controlled at the same time so that the first limiting mechanism 13 does not prevent the second fixing member 12 from moving relative to the second slide 11. At this time, when the first slide 6 is driven by the mobile driving member 7 to move along the height direction of the mounting seat 5, under the action of the first limiting mechanism 13, the second slide 11 moves with the first slide 6, and the first slide 6 drives the test fixture to squeeze the raw materials through the mounting frame 4, thereby realizing the compressive strength test of the raw materials.

[0051] When the impact strength of the raw materials is tested, the second limiting mechanism 14 is controlled so that the second limiting mechanism 14 does not hinder the movement of the second slide 11 relative to the first slide 6, and the first limiting mechanism 13 is controlled at the same time so that the first limiting mechanism 13 hinders the movement of the second fixing member 12 relative to the second slide 11, so that when the second fixing member 12 moves, the second slide 11 can be driven to move synchronously through the first limiting mechanism 13, and when the mobile driving member 7 drives the first slide 6 to move along the height direction of the mounting seat 5, the first slide 6 moves to drive the two transmission wheels 8 to move, and under the action of the first fixing member 10, the first fixing member 10 aligns one side of the transmission belt 9 with the mounting seat 5. The second fixing member 12 is connected, so that when the first slide 6 moves, the transmission belt 9 will drive the second fixing member 12 to move relative to the second slide 11, and the moving directions are the same. The transmission belt 9 drives the second fixing member 12 to move relative to the second slide 11 while moving with the second slide 11. The moving speed of the second fixing member 12 is twice the moving speed of the moving end of the mobile driving member 7, thereby doubling the moving speed of the second fixing member 12. The second fixing member 12 drives the mounting frame 4 to move through the second slide 11, and the test tooling on the mounting frame 4 impacts and collides with the raw materials. The moving speed of the test tooling is doubled, thereby effectively realizing the compressive strength test and impact strength test of the raw materials.

[0052] See also Figure 1 , Figure 5 and Figure 6 In one embodiment of the present invention, a third guide member for limiting the movement of the second fixing member 12 along the height direction of the second slide seat 11 is connected to one side of the second fixing member 12, and the third guide member includes a fixing seat fixedly mounted on the second fixing member 12, and a slide rail is slidably connected to one side of the fixing seat, so as to limit the moving direction of the second fixing member 12 and reduce the friction resistance of the second fixing member 12 when it moves;

[0053] The first limiting mechanism 13 includes an A limiting seat 131, a plurality of A through holes 132 formed on the A limiting seat 131, an A positioning pin 133, an A bracket 134 and an A telescopic driving member 135;

[0054] One side of the A limit seat 131 is fixedly connected to the second fixing member 12, one end of the A positioning pin 133 passes through the A bracket 134 and is slidably connected to the A bracket 134, one side of the A bracket 134 is fixedly connected to the second slide seat 11, one end of the A positioning pin 133 is connected to the A telescopic driving member 135 used to drive the A positioning pin 133 to move along its own axis, the A telescopic driving member 135 adopts a telescopic cylinder or a hydraulic cylinder, the moving end of the A telescopic driving member 135 is fixedly connected to the end of the A positioning pin 133, the fixed end of the A telescopic driving member 135 is fixedly connected to the A bracket 134, and the A positioning pin 133 can be moved until the A positioning pin 133 part is in one of the A through holes 132;

[0055] The A positioning pin 133 is driven to move by the telescopic movement of the moving end of the A telescopic driving member 135. When the A positioning pin 133 moves until a part of it is located in one of the A through holes 132, the second fixing member 12 moves along with the transmission belt 9, and the second slide seat 11 can be driven to move by the second fixing member 12.

[0056] When the A positioning pin 133 is not in the A through hole 132 , the second fixing member 12 is disconnected from the second sliding seat 11 , and the second fixing member 12 can move relative to the second sliding seat 11 .

[0057] See also Figure 4 , Figure 5 and Fig.10 In one embodiment of the present invention, a third guide member for limiting the movement of the second fixing member 12 along the height direction of the second slide seat 11 is connected to one side of the second fixing member 12, and the third guide member includes a fixing seat fixedly mounted on the second fixing member 12, and a slide rail is slidably connected to one side of the fixing seat, so as to limit the moving direction of the second fixing member 12 and reduce the friction resistance of the second fixing member 12 when it moves;

[0058] The first limiting mechanism 13 and the second limiting mechanism 14 together constitute a limiting component 15, and the limiting component 15 can switch between a first state and a second state. When the limiting component 15 is in the first state, the limiting component 15 hinders the second fixing member 12 from moving relative to the second slide 11, and does not hinder the movement of the second slide 11 relative to the first slide 6. At this time, the second fixing member 12 drives the second slide 11 to move when the transmission belt 9 moves, and the second slide 11 moves relative to the first slide 6. The moving speed of the second slide 11 is the moving speed of the first slide 6 plus the moving speed of the transmission belt 9, that is, the moving speed of the second slide 11 is twice the moving speed of the moving end of the moving drive member 7, so that the moving speed of the mounting frame 4 and the test fixture is twice the moving speed of the moving end of the moving drive member 7. At this time, the impact strength of the raw materials can be tested, and the quality of the test fixture, the moving speed and the formula K=1 / 2mV can be used. 2 The kinetic energy K of the test fixture and the cross-sectional area F of the notch where the raw material is impacted are calculated to obtain the impact strength data of the raw material;

[0059] When the limiting component 15 is in the second state, the limiting component 15 hinders the movement of the second slide 11 relative to the first slide 6, and does not hinder the movement of the second fixing member 12 relative to the second slide 11. At this time, the second fixing member 12 does not interfere with the movement of the transmission belt 9, and the second slide 11 moves with the first slide 6. Therefore, under the drive of the mobile driving member 7, the first slide 6 drives the mounting frame 4 and the test tooling through the second slide 11 to perform compressive strength test on the raw materials.

[0060] In one embodiment of the present invention, the limiting assembly 15 includes an A connecting seat 151, a B connecting seat 152, a C connecting seat 153, a C through hole 154 provided on the A connecting seat 151, a D through hole 155 provided on the C connecting seat 153, a C positioning pin 156 and a D telescopic driving member 157;

[0061] One side of the A connection seat 151 is fixedly connected to the first slide seat 6, one side of the B connection seat 152 is fixedly connected to the second slide seat 11, one side of the C connection seat 153 is fixedly connected to the second fixing member 12, the outer wall of the C positioning pin 156 is slidably connected to the B connection seat 152, one side of the C positioning pin 156 is connected to the D telescopic driving member 157 used to drive the C positioning pin 156 to move along its own axis, the D telescopic driving member 157 adopts a telescopic cylinder or a hydraulic cylinder, the moving end of the D telescopic driving member 157 is fixedly connected to the middle section of the C positioning pin 156, the fixed end of the D telescopic driving member 157 is fixedly connected to the A connection seat 151, and the C positioning pin 156 can be moved until part of it is in the C through hole 154 or the D through hole 155;

[0062] The C positioning pin 156 is driven to move by the telescopic movement of the moving end of the D telescopic driving member 157. When the C positioning pin 156 moves to the point where part of it is in one of the C through holes 154 and is out of the D through hole 155, the second slide 11 cannot move relative to the first slide 6, and the second fixing member 12 can move relative to the second slide 11; when the C positioning pin 156 is not in the C through hole 154 and partly in the D through hole 155, the second slide 11 can move relative to the first slide 6, and the second fixing member 12 moves, driving the second slide 11 to move.

[0063] See also Figure 2 , Figure 8 and Fig. 9 In one embodiment of the present invention, the second limiting mechanism 14 includes a driving assembly, two B limit seats 141 and two sliders 142. One side of the two B limit seats 141 is fixedly connected to the second slide 11. The two B limit seats 141 are each provided with a slot for the sliders 142 to be inserted. A slide groove is provided on the first slide 6. One side of the two sliders 142 is slidably connected to the inner wall of the slide groove. The other sides of the two sliders 142 are respectively connected to the driving assembly. The driving assembly is used to drive the two sliders 142 to slide along the inner wall of the slide groove and respectively insert into the slots on the two B limit seats 141.

[0064] When the driving assembly drives the two sliders 142 to be inserted into the notches on the two B limit seats 141 respectively, under the action of the sliders 142 and the B limit seats 141, the second slider 11 cannot move relative to the first slider 6; after the driving assembly drives the two sliders 142 to be separated from the notches on the two B limit seats 141 respectively, the second slider 11 can move relative to the first slider 6;

[0065] In one embodiment of the present invention, the driving assembly includes a B telescopic driving member 143, a connecting plate 144 and two inclined rods 145, one side of the connecting plate 144 is hinged to the two inclined rods 145, one end of the two inclined rods 145 away from the connecting plate 144 is hinged to the two sliders 142 respectively, the other side of the connecting plate 144 is connected to the B telescopic driving member 143 for driving the connecting plate 144 to move along the height direction of the first slide seat 6, the B telescopic driving member 143 is a telescopic cylinder or a hydraulic cylinder, the moving end of the B telescopic driving member 143 is fixedly connected to the connecting plate 144, and the fixed end of the B telescopic driving member 143 is fixedly connected to the first slide seat 6;

[0066] When the moving end of the B telescopic driving member 143 is extended and retracted, the connecting plate 144 is driven to move along the height direction of the first sliding seat 6. The connecting plate 144 drives the two sliders 142 to move through the two inclined rods 145, so that the sliders 142 can be moved and inserted into or out of the slots on the B limit seat 141.

[0067] See also Figure 7In one embodiment of the present invention, the second limiting mechanism 14 includes a C limit seat 146, a plurality of B through holes 147 provided on the C limit seat 146, a B positioning pin 148, a B bracket 149 and a C telescopic driving member 1491;

[0068] One side of the C limit seat 146 is fixedly connected to the second slide 11, one end of the B positioning pin 148 passes through the B bracket 149 and is slidably connected to the B bracket 149, one side of the B bracket 149 is fixedly connected to the first slide 6, one end of the B positioning pin 148 is connected to the C telescopic driving member 1491 used to drive the B positioning pin 148 to move along its own axis, the C telescopic driving member 1491 is a telescopic cylinder or a hydraulic cylinder, the moving end of the C telescopic driving member 1491 is fixedly connected to the B positioning pin 148, the fixed end of the C telescopic driving member 1491 is fixedly connected to the B bracket 149, and the B positioning pin 148 can be moved until the B positioning pin 148 part is in one of the B through holes 147;

[0069] When the moving end of the C telescopic driving member 1491 moves, it drives the B positioning pin 148 to move. When the B positioning pin 148 moves to a point where part of it is located in one of the B through holes 147, the second slide 11 cannot move relative to the first slide 6; when the B positioning pin 148 moves to a point where it is not located in any of the B through holes 147, the second slide 11 can move relative to the first slide 6.

[0070] In one embodiment of the present invention, a sensor is also provided, which is used to monitor the moving distance of the second slide 11 relative to the first slide 6 and / or the moving distance of the second fixing member 12 relative to the second slide 11. The sensor adopts an infrared distance sensor or a displacement sensor to control the first limiting mechanism 13 and the second limiting mechanism 14.

[0071] In one embodiment of the present invention, a corresponding control unit can also be set for use. The control unit can select any controller to be connected to the electrical parts in the present application, so as to control the opening and closing operation of each electrical part. This part is the prior art. Here, a single-chip microcomputer can be provided as a control unit for display. The single-chip microcomputer in this embodiment is a typical embedded microcontroller (Microcontroller Unit), which is composed of an arithmetic unit, a controller, a memory, an input and output device, etc., which is equivalent to a microcomputer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes self-supply (no external hardware) and cost saving. Its biggest advantage is that it is small in size and can be placed inside the instrument, but it has a small storage capacity, a simple input and output interface, and low functional consumption.

[0072] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A highway engineering raw material testing and detection device, comprising a frame (1), a pressure plate (2), a chassis (3) and a mounting frame (4), wherein the chassis (3) is fixedly mounted on the top of the frame (1), the pressure plate (2) is arranged in the chassis (3) and fixedly mounted on the frame (1), and the mounting frame (4) is arranged on the top of the pressure plate (2) and is used to install a test tool for testing raw materials, characterized in that: Also includes: A mounting seat (5) mounted on the inner wall of the chassis (3); A first slide seat (6) is arranged on one side of the mounting seat (5), one side of the first slide seat (6) is connected to a first guide member for limiting the movement of the first slide seat (6) along the height direction of the mounting seat (5), and the other side of the first slide seat (6) is connected to a moving driving member (7) for driving the first slide seat (6) to move; Two transmission wheels (8) are rotatably mounted on the first sliding seat (6), the two transmission wheels (8) are sleeved with a common transmission belt (9), one side of the transmission belt (9) is fixedly connected to a first fixing member (10), and one side of the first fixing member (10) is fixedly connected to the mounting seat (5); A second slide (11) is arranged on one side of the first slide (6), the bottom of the second slide (11) is fixedly connected to the mounting frame (4), one side of the second slide (11) is connected to a second guide member for limiting the movement of the second slide (11) along the height direction of the first slide (6), and the other side of the second slide (11) is provided with a second fixing member (12), and the second fixing member (12) is fixedly connected to a side of the transmission belt (9) away from the first fixing member (10); a first limiting mechanism (13) capable of preventing the second fixing member (12) from moving relative to the second sliding seat (11); The second limiting mechanism (14) is capable of preventing the second slide seat (11) from moving relative to the first slide seat (6).

2. A highway engineering raw material testing and detection device according to claim 1, characterized in that: One side of the second fixing member (12) is connected to a third guide member for limiting the movement of the second fixing member (12) along the height direction of the second slide seat (11).

3. A highway engineering raw material testing and detection device according to claim 2, characterized in that: The first limiting mechanism (13) comprises an A limiting seat (131), a plurality of A through holes (132) provided on the A limiting seat (131), an A positioning pin (133), an A bracket (134) and an A telescopic driving member (135); One side of the A limit seat (131) is fixedly connected to the second fixing member (12), one end of the A positioning pin (133) passes through the A bracket (134) and is slidably connected to the A bracket (134), one side of the A bracket (134) is fixedly connected to the second sliding seat (11), one end of the A positioning pin (133) is connected to an A telescopic driving member (135) for driving the A positioning pin (133) to move along its own axis, and the A positioning pin (133) can be moved until a portion of the A positioning pin (133) is located in one of the A through holes (132).

4. A highway engineering raw material testing and detection device according to claim 2, characterized in that: The first limiting mechanism (13) and the second limiting mechanism (14) together constitute a limiting assembly (15), and the limiting assembly (15) can be switched between a first state and a second state. When the limiting assembly (15) is in the first state, the limiting assembly (15) blocks the movement of the second fixing member (12) relative to the second slide seat (11), and does not block the movement of the second slide seat (11) relative to the first slide seat (6); When the limiting component (15) is in the second state, the limiting component (15) blocks the movement of the second slide seat (11) relative to the first slide seat (6) and does not block the movement of the second fixing member (12) relative to the second slide seat (11).

5. A highway engineering raw material testing and detection device according to claim 4, characterized in that: The limiting assembly (15) comprises an A connecting seat (151), a B connecting seat (152), a C connecting seat (153), a C through hole (154) provided on the A connecting seat (151), a D through hole (155) provided on the C connecting seat (153), a C positioning pin (156) and a D telescopic driving member (157); One side of the A connecting seat (151) is fixedly connected to the first sliding seat (6), one side of the B connecting seat (152) is fixedly connected to the second sliding seat (11), one side of the C connecting seat (153) is fixedly connected to the second fixing member (12), the outer wall of the C positioning pin (156) is slidably connected to the B connecting seat (152), one side of the C positioning pin (156) is connected to a D telescopic driving member (157) for driving the C positioning pin (156) to move along its own axis, and the C positioning pin (156) can move until part of it is in the C through hole (154) or the D through hole (155).

6. A highway engineering raw material testing and detection device according to claim 1, characterized in that: The second limiting mechanism (14) comprises a driving assembly, two B limit seats (141) and two sliders (142); one side of the two B limit seats (141) is fixedly connected to the second slider (11); the two B limit seats (141) are each provided with a slot for the sliders (142) to be inserted; a slide groove is provided on the first slider (6); one side of the two sliders (142) are each slidably connected to the inner wall of the slide groove; the other sides of the two sliders (142) are respectively connected to the driving assembly; the driving assembly is used to drive the two sliders (142) to slide along the inner wall of the slide groove and respectively insert into the slots on the two B limit seats (141).

7. A highway engineering raw material testing and detection device according to claim 6, characterized in that: The driving assembly comprises a B telescopic driving member (143), a connecting plate (144) and two inclined rods (145); one side of the connecting plate (144) is hinged to the two inclined rods (145); one end of the two inclined rods (145) away from the connecting plate (144) is hinged to two sliders (142) respectively; the other side of the connecting plate (144) is connected to the B telescopic driving member (143) for driving the connecting plate (144) to move along the height direction of the first slide seat (6).

8. A highway engineering raw material testing and detection device according to claim 1, characterized in that: The second limiting mechanism (14) comprises a C limiting seat (146), a plurality of B through holes (147) provided on the C limiting seat (146), a B positioning pin (148), a B bracket (149) and a C telescopic driving member (1491); One side of the C limit seat (146) is fixedly connected to the second slide seat (11), one end of the B positioning pin (148) passes through the B bracket (149) and is slidably connected to the B bracket (149), one side of the B bracket (149) is fixedly connected to the first slide seat (6), one end of the B positioning pin (148) is connected to the C telescopic driving member (1491) for driving the B positioning pin (148) to move along its own axis, and the B positioning pin (148) can be moved until the B positioning pin (148) is partially located in one of the B through holes (147).

9. A highway engineering raw material testing and detection device according to claim 1, characterized in that: A sensor is also provided, the sensor being used to monitor the moving distance of the second slide (11) relative to the first slide (6) and / or the moving distance of the second fixing member (12) relative to the second slide (11).

10. A highway engineering raw material testing and detection device according to claim 9, characterized in that: The sensor adopts an infrared distance sensor or a displacement sensor.

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