A loader breakout force testing device

Abstract

The present invention discloses a loader digging force test device, which relates to the technical field of digging force test equipment, including a test platform, a force measuring component and a fixed sleeve, wherein a base is welded to one side edge of the test platform, an end cover is installed on the top of the base, and a force measuring component is arranged inside the base. The loader digging force test device, by pressing the test platform by the loader, will not cause the test device to tip over due to excessive digging force of the loader, and can ensure that the bucket of the loader can achieve comprehensive digging force testing at the rotation angle and lifting height. By arranging an auxiliary driving mechanism, an anti-skid mechanism and a top pressure component in the fixed sleeve for linkage cooperation, the fixed sleeve of the test device can be quickly and stably plugged and locked with bucket teeth of different specifications, and at the same time, the anti-slip mechanism is connected to the loader bucket by magnetic attraction, so that the loader can be prevented from being disconnected from the test device due to the downward vibration deflection of the bucket teeth.

Description

Technical Field

[0001] The invention relates to the technical field of breakout force testing equipment, in particular to a breakout force testing device for a loader. Background Art

[0002] Loader breakout force test device is widely used in engineering machinery manufacturing, quality inspection, performance evaluation and other fields. By using this device, manufacturers can ensure that the breakout force of the loader meets the design requirements, and users can also understand the actual performance of the loader, providing an important reference for use and maintenance. The loader breakout force test device is a special equipment for detecting and measuring the breakout force of the loader.

[0003] According to the search, the Chinese patent with publication number CN114427926B discloses a loader digging force test device. The invention indirectly uses the structure of the boom itself as a force measurement anchor point, eliminating the construction of large ground anchors and reducing the test cost. The digging force interacts with the whole machine itself through the digging force frame assembly, and there is no external force, which avoids the problem of the whole machine tipping forward during the test. The technical solution uses the structure of the boom itself as a force measurement anchor point. When testing the digging force of the loader, the digging force can only be generated by the hydraulic power assembly that pulls the bucket around the boom. In addition, the existing loader is also provided with a hydraulic power assembly for lifting the bucket. At this time, the boom used to lift the bucket cannot complete the lifting operation as a fulcrum, which causes the actual digging force test of the loader to be unable to be fully displayed.

[0004] A Chinese patent with publication number CN107131991A discloses a digging force test device for a front shovel loader. The digging force test device of the invention has a compact structure, flexible disassembly and assembly, accurate test results, high repeatability, safety and can adapt to the needs of various models; when in use, this technical solution needs to be clamped with the bucket by the cooperation of fastening bolts, which is extremely labor-intensive during operation, and it is also extremely troublesome for the docking of the test device and the loader bucket. Summary of the invention

[0005] The object of the present invention is to provide a loader breakout force testing device to solve the problems raised by the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a loader digging force testing device, comprising a test platform, a force measuring component and a fixed sleeve, a base is welded on one side edge of the test platform, an end cover is installed on the top of the base, and a force measuring component is arranged inside the base, the test platform is used to park the loader to be tested, and the bucket of the loader is arranged above the force measuring component, a tensile column is connected to the top of the tensile column, an iron chain is fixed on the top of the tensile column, a C-shaped steel is welded on the top of the iron chain, a fixed sleeve is installed on the upper side of the C-shaped steel, an assembly cavity for inserting bucket teeth is provided inside the fixed sleeve, and a limited position cavity is provided in the middle of the assembly cavity, an auxiliary driving mechanism and an anti-skid mechanism are arranged on the upper side of the limited position cavity, the auxiliary driving mechanism is used to drive the anti-skid mechanism to squeeze the bucket teeth downward, a top pressing component is arranged on the fixed sleeve near the lower part of the limited position cavity, and the top pressing component clamps the bucket teeth of the bucket upward through the auxiliary driving mechanism;

[0007] The auxiliary driving mechanism includes a deflection block arranged in the limiting cavity, and sliders with square structures are arranged at both ends of the deflection block. Rotating pins are connected through both sides of the fixed sleeve, and a torsion spring is connected between the end of the rotating pin away from the deflection block and the fixed sleeve. A connecting sleeve is fixed at the end of the rotating pin extending into the limiting cavity, and the slider is docked in the strip groove in the middle of the connecting sleeve. The anti-slip mechanism includes a rotating seat rotating inside the limiting cavity, a tension spring is connected between the rotating seat and the top wall of the limiting cavity, and an anti-slip pressure block is slidably connected to the lower side of the rotating seat.

[0008] Preferably, a protrusion is fixed to the middle part of the slider, and mounting seats are installed on both sides of the strip groove of the connecting sleeve, an adjusting column penetrating the slider is connected between the two mounting seats, and the adjusting column is slidably connected to the protrusion, and a return spring sleeved with the adjusting column is provided on the inner side of the connecting sleeve, and one end of the return spring abuts against one of the mounting seats, and the other end of the return spring abuts against the slider.

[0009] Preferably, a straight slide groove and a spiral slide groove are provided on the circumferential side surface of the adjusting column, a toggle member a is fixed to one end of the adjusting column close to the straight slide groove, and a toggle member b is fixed to one end of the adjusting column close to the spiral slide groove.

[0010] Preferably, the toggle member a and the toggle member b are both composed of two central turntables and a toggle column, and the toggle column is eccentrically fixed to the edges of the two central turntables, and a docking interface is provided on the surface of the toggle member a close to one end of the straight slide groove.

[0011] Preferably, the two mounting seats are movably connected to the toggle member a and the toggle member b respectively, and the toggle member a and the toggle member b are connected with limit pins, and the limit pins are slidably connected in the mounting seat, and a bayonet is opened on the inner wall of the limit cavity.

[0012] Preferably, the pressing assembly includes an arc-shaped tooth plate arranged on one side of the fixing sleeve, and one end of the arc-shaped tooth plate is installed with a rotating pin on one side of the fixing sleeve.

[0013] Preferably, a transmission gear rod is meshingly connected to the bottom of the arc-shaped gear plate, a threaded shaft rod is fixed to the middle of the transmission gear rod, and the threaded shaft rod of the transmission gear rod passes through the lower side of the fixing sleeve.

[0014] Preferably, two flat cutouts are arranged on the circumferential side of the threaded shaft of the transmission gear rod, an eccentric roller is sleeved on the outer side of the threaded shaft of the transmission gear rod, and a locking nut is connected to one end of the threaded shaft extending through the fixing sleeve.

[0015] Preferably, an anti-slip mechanism is provided on the side of the fixing sleeve close to the inlet of the assembly cavity, a rotating shaft is fixed between two adjacent fixing sleeves, and a bracket is rotatably connected to the middle of the rotating shaft.

[0016] Preferably, a magnetic pad is fixed to one end of the bracket away from the rotating shaft, a magnet block is fixed to the top of the magnetic pad, the magnetic pad is suction-connected to the inner wall of the bucket of the loader, a lifting rod is provided on the lower side of the bracket, the lifting rod is overlapped on the upper side wall of the bucket tooth of the bucket, a ring is connected to the outer side of the lifting rod, and a pressure rod frame is welded and fixed to the outer side of the ring.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the loader digging force testing device, by pressing the test platform with the loader, will not cause the test device to overturn due to excessive digging force of the loader, and can ensure that the bucket of the loader can achieve comprehensive digging force testing at the rotation angle and lifting height. By arranging an auxiliary driving mechanism, an anti-skid mechanism and a top pressure assembly in the fixed sleeve for linkage cooperation, the fixed sleeve of the test device can be quickly and stably plugged and locked with bucket teeth of different specifications. At the same time, the anti-slip mechanism is connected to the loader bucket by magnetic attraction, which can prevent the loader from being disconnected from the test device due to the downward vibration deflection of the bucket teeth.

[0018] 1. The loader digging force test device can ensure that the test device can test various types of loaders through the setting of the test platform, and the test device will not overturn due to excessive digging force of the loader during the test. At the same time, the front end of the bucket tooth is inserted into the fixed sleeve, and the deflection block is continuously squeezed, which makes the deflection block move up first and then rotate, so that the rotating seat can be squeezed by the buckling block, so that the rotating seat can drive the anti-skid pressure block to move down when rotating, and the anti-skid pressure block abuts against the bucket teeth of the bucket, and the anti-skid pressure block pushes the deflection block when abutting against the upper side of the bucket teeth, thereby generating anti-skid compression on the upper side of the bucket teeth, and at the same time, when the front end of the anti-skid pressure block is squeezed to the deflection block, the rotation of the deflection block is restricted, ensuring that the deflection block and the anti-skid pressure block synchronously restrict the upper surface of the bucket teeth, preventing the loader from causing the connection between the fixed sleeve and the bucket teeth to become loose during the digging force test, and the connection between the fixed sleeve and the bucket teeth is made easier and more convenient by plugging the fixed sleeve and the bucket teeth;

[0019] 2. The loader breakout force test device, when the auxiliary drive mechanism is squeezed by the bucket teeth and drives the anti-skid mechanism to squeeze the bucket teeth of the bucket downward, the deflection block drives the arc-shaped tooth plate to rotate forward and can be meshed with the transmission tooth rod in a positive direction, so that the threaded shaft drives the eccentric roller to rotate and push the bucket teeth of the bucket to move inside the fixed sleeve, thereby driving the bucket teeth and the fixed sleeve to achieve stable tightening. At the same time, the eccentric roller can cooperate with the deflection block and the anti-skid pressure block when squeezing the lower surface of the bucket teeth from bottom to top, which can prevent the fixed sleeve and the bucket teeth from shaking and slipping when the loader bucket is tested for breakout force;

[0020] 3. The loader digging force test device locks and installs the fixed sleeve and the bucket teeth of the bucket in advance. Since the bucket teeth of the bucket protrude upward from the bottom surface of the inner wall of the bucket, the magnetic pad is driven to be placed on the inner wall of the bucket to complete magnetic attraction by flipping the bracket around the rotating axis between two adjacent fixed sleeves, and the side edge of the magnetic pad is pressed against the tail of the bucket teeth, thereby ensuring that the fixed sleeve and the bucket teeth of the bucket have a secondary anti-slip and anti-slip reinforced connection effect after the docking is completed. The protruding side of the magnetic pad and the tail of the bucket teeth is restricted to prevent the bucket from being separated from the force measuring component and the fixed sleeve when the bucket teeth deflect downward, and the docking of the test device and the bucket can be quickly disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a first three-dimensional structural schematic diagram of the testing device of the present invention;

[0022] Figure 2 is a second three-dimensional structural schematic diagram of the testing device of the present invention;

[0023] Figure 3 It is a schematic diagram of a first three-dimensional structure of the fixed sleeve and the bucket docking in the present invention;

[0024] Figure 4 A second three-dimensional structural schematic diagram of the fixed sleeve and the bucket docking according to the present invention;

[0025] Figure 5 It is a schematic diagram of a first three-dimensional cutaway structure of the bucket tooth and the fixed sleeve before being plugged into each other;

[0026] Figure 6 It is a second three-dimensional cross-sectional structural schematic diagram of the bucket tooth and the fixed sleeve before being plugged into each other;

[0027] Figure 7 It is a schematic diagram of a first three-dimensional cutaway structure of the bucket tooth and the fixed sleeve in the plug-in connection of the present invention;

[0028] Figure 8 It is a schematic diagram of a second three-dimensional cutaway structure of the bucket tooth and the fixed sleeve in the plug-in connection of the present invention;

[0029] Fig. 9 It is a schematic diagram of a first three-dimensional cutaway structure after the bucket tooth and the fixed sleeve are plugged together according to the present invention;

[0030] Fig.10 It is a schematic diagram of a second three-dimensional cutaway structure after the bucket tooth and the fixed sleeve are plugged together according to the present invention;

[0031] Fig.11 It is a schematic diagram of a three-dimensional cross-section structure in which the auxiliary driving mechanism and the top pressing assembly of the present invention are arranged inside the fixing sleeve;

[0032] Fig.12 It is a schematic diagram of the front view of the cross-section structure after the bucket tooth and the fixed sleeve are plugged together;

[0033] Fig.13 It is a schematic diagram of a three-dimensional cross-section structure in which the auxiliary driving mechanism, the anti-slip mechanism and the top pressing assembly of the present invention are arranged inside the fixing sleeve;

[0034] Fig.14 It is a schematic diagram of the three-dimensional structure of the linkage between the auxiliary driving mechanism, the anti-slip mechanism and the top pressing assembly of the present invention;

[0035] Fig.15 It is a schematic diagram of a three-dimensional explosion structure in which the auxiliary driving mechanism and the anti-slip mechanism are linked in the present invention;

[0036] Fig.16 It is a schematic diagram of a three-dimensional cross-section structure of the auxiliary driving mechanism of the present invention;

[0037] Fig.17 It is a three-dimensional exploded structural diagram of the connection between the slider, the mounting seat and the adjusting column of the present invention;

[0038] Fig.18 It is a schematic diagram of the three-dimensional structure of the adjusting column of the present invention.

[0039] In the figure: 1. test platform; 101. base; 2. force measuring assembly; 201. stretching column; 202. iron chain; 203. C-shaped steel; 3. fixing sleeve; 301. limit cavity; 302. bayonet; 4. auxiliary driving mechanism; 401. deflection block; 402. slider; 4021. protrusion; 403. connecting sleeve; 404. mounting seat; 405. adjusting column; 4051. straight slide groove; 4052. spiral slide groove; 4053. toggle member a; 4054. docking interface; 4055, toggle member b; 406, reset spring; 407, limit pin; 408, rotating pin; 409, torsion spring; 5, anti-skid mechanism; 501, rotating seat; 502, anti-skid pressure block; 503, tension spring; 6, top pressure assembly; 601, arc-shaped tooth plate; 602, transmission gear rod; 603, anti-loosening nut; 604, eccentric roller; 7, anti-slip mechanism; 701, rotating shaft; 702, bracket; 703, magnetic pad; 704, lifting rod; 705, pressure rod frame. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 18 The present invention provides a technical solution: a loader digging force test device, comprising a test platform 1, a force measuring component 2 and a fixing sleeve 3, a base 101 is welded to one side edge of the test platform 1, an end cover is installed on the top of the base 101, and the force measuring component 2 is arranged inside the base 101, and the force measuring component 2 can be firmly restricted in the test platform 1 through the cooperation between the base 101 and the end cover, the test platform 1 is used to park the loader to be tested, and the bucket of the loader is arranged above the force measuring component 2, and the top of the force measuring component 2 is connected to a tensile column 201, and the tensile column 2 An iron chain 202 is fixed on the top of 01, a C-shaped steel 203 is welded to the top of the iron chain 202, a fixing sleeve 3 is installed on the upper side of the C-shaped steel 203, an assembly cavity for inserting bucket teeth is provided inside the fixing sleeve 3, and a limit cavity 301 is provided in the middle of the assembly cavity, an auxiliary driving mechanism 4 and an anti-skid mechanism 5 are provided on the upper side of the limit cavity 301, the auxiliary driving mechanism 4 is used to drive the anti-skid mechanism 5 to squeeze the bucket teeth downward, and a top pressing component 6 is provided below the fixing sleeve 3 near the limit cavity 301, and the top pressing component 6 clamps the bucket teeth of the bucket upward through the auxiliary driving mechanism 4;

[0042] The auxiliary drive mechanism 4 includes a deflection block 401 arranged in the limit cavity 301, and a square-structured slider 402 is arranged at both ends of the deflection block 401. The deflection block 401 is formed by a central block, a pressure block and a buckling block, and the slider 402 is welded to both ends of the pressure block. A rotating pin 408 is connected through both sides of the fixed sleeve 3. A torsion spring 409 is connected between the end of the rotating pin 408 away from the deflection block 401 and the fixed sleeve 3. The end of the rotating pin 408 extending into the limit cavity 301 is fixed with a connecting sleeve 403, the slider 402 is docked in the strip groove in the middle of the connecting sleeve 403, the anti-skid mechanism 5 includes a rotating seat 501 rotating inside the limiting cavity 301, a tension spring 503 is connected between the rotating seat 501 and the top wall of the limiting cavity 301, an anti-skid pressure block 502 is slidably connected to the lower side of the rotating seat 501, an inclined surface is provided on the lower side of the rotating seat 501, and a reserved groove is provided on the inclined surface on the lower side of the rotating seat 501, a reserved guide block is docked in the reserved groove, and the bottom of the reserved guide block is fixed to the anti-skid pressure block 502;

[0043] A protrusion 4021 is fixed to the middle of the slider 402, and mounting seats 404 are installed on both sides of the strip groove of the connecting sleeve 403. An adjusting column 405 penetrating the slider 402 is connected between the two mounting seats 404, and the adjusting column 405 is slidably connected with the protrusion 4021. A return spring 406 sleeved with the adjusting column 405 is arranged on the inner side of the connecting sleeve 403, and one end of the return spring 406 abuts against one of the mounting seats 404, and the other end of the return spring 406 abuts against the slider 402. When the deflection block 401 is squeezed, it will drive the slider 402 to move up along the strip groove inside the connecting sleeve 403, and the slider 402 will squeeze the return spring 406 to produce contraction;

[0044] A straight slide groove 4051 and a spiral slide groove 4052 are provided on the circumferential side surface of the adjusting column 405. The straight slide groove 4051 is parallel to the central axis of the adjusting column 405. The number of turns of the spiral slide groove 4052 is 1 / 2. A toggle piece a4053 is fixed to one end of the adjusting column 405 close to the straight slide groove 4051. A toggle piece b4055 is fixed to one end of the adjusting column 405 close to the spiral slide groove 4052. Both the toggle piece a4053 and the toggle piece b4055 are composed of two central rotating disks and a toggle column. The toggle column is eccentrically fixed to the edges of the two central rotating disks. A docking interface 4054 is provided on the surface of the toggle piece a4053 close to one end of the straight slide groove 4051. The central axis of the central rotating disk is connected to the adjusting column 405. The adjusting column 405 is coaxially arranged, and a docking port 4054 is provided on the surface of the toggle member a4053 close to one end of the straight slide groove 4051. When the toggle member a4053 at the end of the adjusting column 405 passes through the protrusion 4021 on the inner wall of the slider 402 through the docking port 4054, the straight slide groove 4051 on the outer peripheral side of the adjusting column 405 is docked with the protrusion 4021, and the adjusting column 405 can be inserted into the slider 402. At the same time, the toggle members a4053 and the toggle members b4055 at both ends of the adjusting column 405 are respectively inserted into the two mounting seats 404, and then the adjusting column 405 can be driven to be limitedly installed in the connecting sleeve 403 through the two mounting seats 404, so as to facilitate the assembly of the auxiliary driving mechanism 4.

[0045] The two mounting seats 404 are movably connected to the toggle member a4053 and the toggle member b4055 respectively. The toggle member a4053 and the toggle member b4055 are docked with a limit pin 407. The limit pin 407 is slidably connected in the mounting seat 404. A bayonet 302 is provided on the inner wall of the limit cavity 301. The limit pin 407 is integrally formed by a rectangular frame and a strip pin body. The rectangular frame of the limit pin 407 is slidably connected to the toggle column. The strip pin body of the limit pin 407 is slidably plugged into the reserved through-hole of the connecting sleeve 403. The connection between the limit pin 407 and the bayonet 302 can limit the angle of the connecting sleeve 403 to prevent the deflection block 401 from deflecting. At the same time, it is ensured that the deflection block 401 can only slide in the strip groove inside the connecting sleeve 403 when squeezed.

[0046] During specific implementation, the test platform 1 is pre-buried and installed at the designated position, and the loader is driven and parked on the test platform 1. At the same time, the bucket of the loader is extended above the force measuring component 2, and then the C-shaped steel 203 is lifted to drive the fixed sleeve 3 to plug into the bucket teeth of the bucket, so that there is no need to anchor the test platform 1 when conducting the digging force test of the loader. The lifting of the bucket driven by the loader will pull the force measuring component 2 for testing. The setting of the test platform 1 can ensure that the test device can test various types of loaders, and the test device will not overturn due to excessive digging force of the loader during the test. When the front end of the bucket teeth is inserted into the middle of the assembly cavity of the fixed sleeve 3, the bucket teeth of the bucket will squeeze the compressed block on one side of the deflection block 401 upward, so that the central block of the deflection block 401 moves upward, and at the same time, the sliders 402 at both ends of the central block will move upward along the strip groove inside the connecting sleeve 403. The protrusion 4021 of the inner wall is driven to enter the spiral groove 4052 along the straight groove 4051 on the outer side of the adjustment column 405, so that the protrusion 4021 can squeeze the spiral groove 4052 when it moves upward in a directional manner, so that the adjustment column 405 rotates 180 degrees, so that the adjustment column 405 drives the toggle pieces a4053 and b4055 at both ends to rotate, and the toggle pieces a4053 and b4055 rotate to make the center turntable on the mounting seat. 404, and the central turntable will also drive the toggle column to rotate in a circle, so that the toggle column will squeeze the rectangular frame of the limit pin 407 to adjust the position, and then the bar pin body of the limit pin 407 will gradually slide outward from the bayonet 302 on the inner wall of the limit cavity 301. When the sliders 402 at both ends of the deflection block 401 drive the adjustment column 405 to complete a 180° rotation, the limit pin 407 slides in the mounting seat 404 and can be completely disengaged from the bayonet 302;

[0047] When the slider 402 at the end of the deflection block 401 slides upward to the top of the strip groove of the connecting sleeve 403 and is also squeezed by the bucket teeth of the bucket, the compressed block of the deflection block 401 is squeezed again, which makes the sliders 402 at both ends of the central block drive the connecting sleeve 403 and the rotating pin 408 to rotate, and the rotating pin 408 squeezes the torsion spring 409 to tighten when rotating; when the deflection block 401 rotates, it squeezes the rotating seat 501 downward through the buckling block, so that the rotating seat 501 can drive the anti-skid pressing block 502 to move downward when rotating, and And it can drive the tension spring 503 to produce elongation and deformation. When the anti-skid pressure block 502 abuts against the bucket tooth of the bucket, the reserved guide block on the lower side of the rotating seat 501 will slide along the reserved groove, thereby driving the anti-skid pressure block 502 to push in the direction of the deflection block 401 when abutting against the upper side of the bucket tooth, thereby producing anti-skid compression on the upper side of the bucket tooth. At the same time, when the front end of the anti-skid pressure block 502 is squeezed onto the deflection block 401, the rotation of the deflection block 401 is restricted, ensuring that the deflection block 401 and the anti-skid pressure block 502 synchronously restrict the upper surface of the bucket tooth;

[0048] On the contrary, when the fixing sleeve 3 is removed from the bucket tooth of the bucket, the reset of the torsion spring 409 can drive the deflection block 401 to reset and rotate in the reverse direction. When the deflection block 401 drives the connecting sleeve 403 to reset and rotate in the reverse direction to the initial angle, the limit pins 407 on both sides of the connecting sleeve 403 will be realigned with the bayonet 302 on the inner wall of the limit cavity 301, and the reset of the reset spring 406 can push the slider 402 and the deflection block 401 to move downward along the strip groove inside the connecting sleeve 403 at the same time, so that the adjusting column 405 is reversed 180°, so that the adjusting column 405 will drive the limit pin 407 to be reinserted into the bayonet 302 to limit the angle of the connecting sleeve 403, and at the same time, the reset traction of the tension spring 503 can drive the rotating seat 501 to rotate upward, so that the anti-skid pressure block 502 is out of contact with the bucket tooth of the bucket.

[0049] See also Figure 5-Figure 14 The top pressure assembly 6 includes an arc-shaped toothed plate 601 disposed on one side of the fixed sleeve 3, one end of the arc-shaped toothed plate 601 is installed with the rotating pin 408 on one side of the fixed sleeve 3, the bottom of the arc-shaped toothed plate 601 is meshedly connected with a transmission gear rod 602, a threaded shaft rod is fixed to the middle of the transmission gear rod 602, and the threaded shaft rod of the transmission gear rod 602 passes through the lower side of the fixed sleeve 3;

[0050] Two flat cutouts are arranged on the circumferential side of the threaded shaft of the transmission gear rod 602. An eccentric roller 604 is sleeved on the outer side of the threaded shaft of the transmission gear rod 602. One end of the threaded shaft extending through the fixed sleeve 3 is connected with a locking nut 603. The flat cutouts on the circumferential side of the threaded shaft are matched and plugged with the eccentric roller 604, so that the eccentric roller 604 can be driven to stably deflect when the threaded shaft rotates. The eccentric roller 604 is placed below the limit cavity 301, and the thread of the transmission gear rod 602 is fixed. The shaft rod passes through the fixed sleeve 3 and the eccentric roller 604, and is threadedly connected to the threaded shaft rod end of the transmission gear rod 602 using a locking nut 603, and then the lower side of the arc-shaped toothed plate 601 is meshed and clamped with the transmission gear rod 602. When the arc-shaped toothed plate 601 rotates forward and reverse, it can drive the eccentric roller 604 to follow the flip, and the upper end of the arc-shaped toothed plate 601 is installed with the rotating pin 408, thereby facilitating the rapid assembly of the top pressure assembly 6, and vice versa, the top pressure assembly 6 can be quickly disassembled.

[0051] In specific implementation, when the auxiliary driving mechanism 4 is squeezed by the bucket teeth and drives the anti-skid mechanism 5 to squeeze the bucket teeth of the bucket downward, the deflection block 401 will drive the rotating pin 408 to rotate and drive the arc tooth plate 601 to achieve positive rotation when it is squeezed, so that the arc tooth plate 601 can be positively meshed with the transmission gear rod 602 for transmission, and the transmission gear rod 602 will drive the threaded shaft rod to rotate when it rotates, so that the threaded shaft rod drives the eccentric roller 604 to rotate through the flat incision on the circumferential side, thereby making the eccentric roller 604 squeeze and push the bucket teeth of the bucket to move inside the fixed sleeve 3, thereby driving the bucket teeth and the fixed sleeve 3 to achieve stable tightening, and at the same time, the eccentric roller 604 can cooperate with the deflection block 401 and the anti-skid pressure block 502 when squeezing the lower surface of the bucket teeth from bottom to top, so as to prevent the bucket teeth of the bucket from being separated from the fixed sleeve 3, thereby preventing the fixed sleeve 3 from shaking and slipping when the loader bucket is conducting a digging force test;

[0052] By designing the assembly cavity inside the fixed sleeve 3 to be a shape that matches the bucket teeth, the fixed sleeve 3 can be matched and connected with bucket teeth of different shapes, ensuring that the fixed sleeve 3 can be locked and restricted with bucket teeth of different specifications through the auxiliary drive mechanism 4, the anti-slip mechanism 5 and the top pressure assembly 6.

[0053] See also Figure 1 and Figure 3 The fixing sleeve 3 is provided with an anti-slip mechanism 7 on the inlet side of the assembly cavity, a rotating shaft 701 is fixed between two adjacent fixing sleeves 3, and a bracket 702 is rotatably connected to the middle of the rotating shaft 701;

[0054] A magnetic pad 703 is fixed to one end of the bracket 702 away from the rotating shaft 701, and a magnet block is fixed to the top of the magnetic pad 703. The magnetic pad 703 is suction-connected to the inner wall of the bucket of the loader, and a lifting rod 704 is arranged on the lower side of the bracket 702. The lifting rod 704 is overlapped on the upper side wall of the bucket tooth of the bucket, and a ring is connected to the outer side of the lifting rod 704, and a pressure rod frame 705 is welded and fixed to the outer side of the ring. The bucket tooth protrudes upward from the bottom surface of the inner wall of the bucket, and one side edge of the magnetic pad 703 abuts against the tail of the bucket tooth, and the pressure rod frame 705 abuts against one side of the rotating shaft 701.

[0055] During the specific implementation, the fixing sleeve 3 and the bucket teeth of the bucket are locked and installed in advance. Since the bucket teeth of the bucket protrude upward from the bottom surface of the inner wall of the bucket, the bracket 702 is flipped around the rotating shaft 701 between two adjacent fixing sleeves 3, so that the bracket 702 can drive the magnetic pad 703 to be placed on the inner wall of the bucket to complete the magnetic attraction, and the side edge of the magnetic pad 703 is pressed against the tail of the bucket teeth, thereby ensuring that the fixing sleeve 3 and the bucket teeth of the bucket have a secondary anti-slip and anti-slip reinforcement connection effect after the docking is completed;

[0056] At the same time, when the bucket of the loader lifts the multiple sets of fixing sleeves 3 to move upward, the multiple sets of fixing sleeves 3 can stably pull the iron chain 202 through the C-shaped steel 203 at the bottom, and then pull the tensile column 201 through the iron chain 202, so that the force measuring component 2 can detect the tension value. When performing the digging force test, the magnetic pad 703 and the protruding side of the bucket tooth tail are restricted to prevent the bucket from being separated from the force measuring component 2 and the fixing sleeve 3 when the bucket tooth deflects downward;

[0057] When the test of the loader's digging force is completed, by pressing the pressure rod frame 705, the pressure rod frame 705 uses the rotating shaft 701 as a lever fulcrum to pry the lifting rod 704, so that the lifting rod 704 squeezes the bracket 702 upward, and the bracket 702 flips around the rotating shaft 701, which can drive the magnetic pad 703 to disengage from the magnetic attraction with the loader bucket, and at the same time loosen the docking of the fixing sleeve 3 and the bucket teeth of the bucket, so that the test device and the bucket can be quickly separated, thereby ensuring that the test device and the bucket can be quickly disassembled.

[0058] To summarize, the loader is driven and parked on the test platform 1. At the same time, the bucket of the loader is extended above the force measuring component 2, and then the C-shaped steel 203 is lifted to drive the fixed sleeve 3 to be plugged into the bucket teeth of the bucket. Through the cooperation of the auxiliary driving mechanism 4, the anti-slip mechanism 5, the top pressure component 6 and the anti-slip mechanism 7, the test device can be firmly clamped with the bucket teeth of the loader bucket. When the loader is performing a digging force test, the lifting of the bucket driven by the loader will pull the fixed sleeve 3 and the C-shaped steel 203 upward, so that the C-shaped steel 203 will pull the iron chain 202 upward to pull the tensile column 201, so that the force measuring component 2 at the bottom of the tensile column 201 can test the tension. This is the prior art and will not be elaborated on here. The lifting performance of the loader when loading materials can be tested, which is convenient for manufacturers and users to quickly understand the working performance of the loader. The content not described in detail in this description belongs to the prior art known to professional and technical personnel in this field.

[0059] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A loader breakout force testing device, comprising a testing platform (1), a force measuring assembly (2) and a fixing sleeve (3), characterized in that: A base (101) is welded to one side edge of the test platform (1), an end cover is installed on the top of the base (101), and a force measuring assembly (2) is arranged inside the base (101); the test platform (1) is used to park a loader to be tested, and the bucket of the loader is arranged above the force measuring assembly (2); a tensile column (201) is connected to the top of the tensile column (201); an iron chain (202) is fixed to the top of the iron chain (202); a C-shaped steel (203) is welded to the top of the C-shaped steel (203); 3) is provided with a fixing sleeve (3) on the upper side thereof, an assembly cavity for inserting bucket teeth is provided inside the fixing sleeve (3), and a limit cavity (301) is provided in the middle of the assembly cavity, an auxiliary driving mechanism (4) and an anti-skid mechanism (5) are provided on the upper side of the limit cavity (301), the auxiliary driving mechanism (4) is used to drive the anti-skid mechanism (5) to press the bucket teeth downward, and a pressing assembly (6) is provided below the fixing sleeve (3) near the limit cavity (301), and the pressing assembly (6) clamps the bucket teeth of the bucket upward through the auxiliary driving mechanism (4); The auxiliary driving mechanism (4) comprises a deflection block (401) arranged in the limiting cavity (301), and sliders (402) of a square structure are arranged at both ends of the deflection block (401). Rotating pins (408) are connected through both sides of the fixed sleeve (3), and a torsion spring (409) is connected between the end of the rotating pin (408) away from the deflection block (401) and the fixed sleeve (3). A connecting sleeve (403) is fixed to the end of the rotating pin (408) extending into the limiting cavity (301), and the slider (402) is docked in a strip groove in the middle of the connecting sleeve (403). The anti-slip mechanism (5) comprises a rotating seat (501) rotating inside the limiting cavity (301), a tension spring (503) is connected between the rotating seat (501) and the top wall of the limiting cavity (301), and an anti-slip pressure block (502) is slidably connected to the lower side of the rotating seat (501); A protrusion (4021) is fixed to the middle of the slider (402), mounting seats (404) are installed on both sides of the strip groove of the connecting sleeve (403), an adjustment column (405) penetrating the slider (402) is connected between the two mounting seats (404), and the adjustment column (405) is slidably connected to the protrusion (4021), and a return spring (406) sleeved with the adjustment column (405) is arranged on the inner side of the connecting sleeve (403), and one end of the return spring (406) is in contact with one of the mounting seats (404), and the other end of the return spring (406) is in contact with the slider (402); The circumferential side surface of the adjusting column (405) is provided with a straight slide groove (4051) and a spiral slide groove (4052); a toggle member a (4053) is fixed to one end of the adjusting column (405) close to the straight slide groove (4051); and a toggle member b (4055) is fixed to one end of the adjusting column (405) close to the spiral slide groove (4052); the toggle member a (4053) and the toggle member b (4055) are both composed of two central rotating disks and a toggle column, and the toggle column is eccentrically fixed to the two central rotating disks. The toggle member a (4053) is provided with a docking port (4054) on its surface close to one end of the straight slide groove (4051); the two mounting seats (404) are movably connected to the toggle member a (4053) and the toggle member b (4055) respectively; the toggle member a (4053) and the toggle member b (4055) are docked with a limit pin (407), the limit pin (407) is slidably connected in the mounting seat (404), and a bayonet (302) is provided on the inner wall of the limit cavity (301); The pressing assembly (6) comprises an arc-shaped toothed plate (601) arranged on one side of the fixing sleeve (3), one end of the arc-shaped toothed plate (601) being mounted on a rotating pin (408) on one side of the fixing sleeve (3); a transmission gear rod (602) is meshedly connected at the bottom of the arc-shaped toothed plate (601), a threaded shaft rod is fixed at the middle of the transmission gear rod (602), and the threaded shaft rod of the transmission gear rod (602) passes through the lower side of the fixing sleeve (3); two flat cutouts are arranged on the circumferential side of the threaded shaft rod of the transmission gear rod (602), an eccentric roller (604) is sleeved on the outer side of the threaded shaft rod of the transmission gear rod (602), and a locking nut (603) is connected to one end of the threaded shaft rod that passes through and extends out of the fixing sleeve (3).

2. A loader breakout force testing device according to claim 1, characterized in that: An anti-drop mechanism (7) is provided on the fixed sleeve (3) near the inlet side of the assembly cavity, a rotating shaft (701) is fixed between two adjacent fixed sleeves (3), and a bracket (702) is rotatably connected to the middle of the rotating shaft (701).

3. A loader breakout force testing device according to claim 2, characterized in that: A magnetic pad (703) is fixed to one end of the bracket (702) away from the rotating shaft (701), a magnet block is fixed to the top of the magnetic pad (703), the magnetic pad (703) is suction-connected to the inner wall of the bucket of the loader, a lifting rod (704) is arranged on the lower side of the bracket (702), the lifting rod (704) is overlapped on the upper side wall of the bucket tooth of the bucket, the outer side of the lifting rod (704) is connected to a collar, and a pressure rod frame (705) is welded and fixed to the outer side of the collar.

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