CN214173973U - Electric direct shear apparatus - Google Patents

Abstract

The application relates to an electric direct shear apparatus, which belongs to the technical field of soil detection. The apparatus is used for testing the strength parameters of soil, and is characterized by being capable of adapting to the direct shear test of soil containing coarse particles, solid wastes, pond residues and domestic garbage soil, and being safe and convenient to operate. The shearing box comprises an upper shearing box and a lower shearing box, the front end of the upper shearing box is abutted against the pressure sensor, and the driving device drives the lower shearing box to slide towards the direction of the pressure sensor relative to the upper shearing box; the shearing box is provided with a hoisting assembly, the hoisting assembly comprises a positioning pin column, a hoisting rod and a lifting hook, a positioning pin hole is formed in the shearing box, the positioning pin column is installed in the positioning pin hole, the upper shearing box and the lower shearing box are fixed, two ends of the hoisting rod are fixed with the shearing box through screws, and the lifting hook is fixed on the hoisting rod. This application has the effect of shearing the box and conveniently taking off and installing down to cut the box down.

Description

Electric direct shear apparatus

Technical Field

The application relates to the technical field of soil detection, in particular to an electric direct shear apparatus. The apparatus is used for testing the strength parameters of soil, and is characterized by being capable of adapting to the direct shear test of soil containing coarse particles, solid wastes, pond residues and domestic garbage soil, and being safe and convenient to operate.

Background

Soil containing coarse particles is common, and the attention of people is paid to the treatment and utilization of solid waste, pond residues and domestic garbage soil. Before buildings such as large-area construction sites of airports, port storage yards and general civil buildings are constructed, foundation soil containing coarse particles needs to be subjected to multi-directional mechanical testing, wherein the shear strength testing of the soil is one of the buildings and is used for testing the shear strength parameters of the soil under different load conditions, and the shear strength of the soil influences the stability and the anti-slip capability of the foundation.

The conventional electric direct shear apparatus comprises an installation frame, a driving device, a vertical loading device, an upper shear box, a lower shear box and a vertical displacement dial indicator, wherein the driving device, the vertical loading device, the upper shear box, the lower shear box and the vertical displacement dial indicator are arranged on the installation frame; the driving device is used for driving the lower shearing box to slide towards the direction of the vertical displacement dial indicator relative to the upper shearing box;

the vertical loading device comprises a loading frame for applying pressure to the soil sample, and a lever assembly connected with the loading frame at the lower side of the mounting frame, wherein the loading frame is loaded by loading a load on the lever assembly, and finally the vertical loading function is realized. Shearing by applying horizontal force under different vertical pressures to obtain shearing stress during failure, and determining the shear strength parameters, internal friction angle and cohesion of soil according to Coulomb's law.

In view of the above-mentioned related technologies, the inventor believes that because the soil condition is complex in the actual environment, the small soil sample is not enough to test the real parameters of the soil, and the soil can be better and more effectively measured by manufacturing the large direct shear apparatus, but the large apparatus is very laborious to take off the upper shear box and the lower shear box, which causes the installation and taking off of the soil sample to be very inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to take off and install upper shear box and lower shear box conveniently, the application provides an electronic staight scissors appearance.

The application provides an electronic staight scissors appearance adopts following technical scheme:

an electric direct shear apparatus comprises a mounting frame, and a driving device, a vertical loading device, a shear box and a pressure sensor which are arranged on the mounting frame, wherein the shear box comprises an upper shear box and a lower shear box which are stacked up and down;

the shearing box is provided with a hoisting assembly, the hoisting assembly comprises a positioning pin column, a hoisting rod and a lifting hook, a positioning pin hole is formed in the shearing box and comprises an upper pin hole formed in the upper shearing box and a lower pin hole formed in the lower shearing box, the positioning pin column is installed in the positioning pin hole and fixed to the upper shearing box and the lower shearing box, two ends of the hoisting rod are fixed to the shearing box through screws, and the lifting hook is fixed to the hoisting rod.

Through adopting above-mentioned technical scheme, through set up the hoist and mount subassembly on shearing the box, a hoist and mount for shearing the box, thereby make things convenient for the installation of shearing the box and take off, the soil sample of being convenient for is put into in the shearing box, the locating pin axle of setting, on the one hand, be used for fixing a position and install shearing box and shearing box down, when putting into the soil sample, go up the correction that sample chamber and lower sample chamber are right, improve the accuracy of detected data, on the other hand, make it together fixed to cut box and shearing box down, the lifting rod is with shearing box fix with screw, the lifting hook on the lifting rod conveniently lifts by crane, the mode that detects is carried out through pressure sensor, make the testing result more accurate.

Optionally, the locating pin post is the ladder post, just the less one end of locating pin post diameter wears to locate go up pinhole and threaded fixation in pinhole down, the maximum diameter of locating pin post is greater than the internal diameter of locating pin hole, the great one end outer wall of locating pin post diameter is provided with anti-skidding line.

Through adopting above-mentioned technical scheme, the locating pin post adopts the ladder post, and the less one end screw thread of locating pin post diameter is fixed in down the pinhole, make the centre gripping of upper shear box between the great one end of lower shear box and locating pin post diameter, it is fixed to realize the connection between lower shear box and the upper shear box, the anti-skidding line of setting, make the locating pin post can be more laborsaving rotate, the installation and the dismantlement of locating pin post of being convenient for, the locating pin post only with lower shear box screw thread fixed, the installation and the dismantlement of locating pin post of further being convenient for.

Optionally, a liquid receiving box is further arranged on the mounting frame, the liquid receiving box is slidably mounted on the mounting frame along the sliding direction of the lower shearing box, a liquid receiving cavity is formed in the liquid receiving box, and the shearing box is mounted in the liquid receiving cavity.

Through adopting above-mentioned technical scheme, the liquid box that connects that sets up for soil can obtain receiving when receiving the extrusion in the soil liquid that oozes, makes the whole mounting bracket that the liquid that oozes is difficult to the infiltration all be, keeps the cleanness of equipment, is convenient for clear up.

Optionally, a liquid guide groove is formed in the cavity bottom of the liquid receiving cavity.

By adopting the technical scheme, the liquid guide groove is formed at the bottom of the liquid receiving cavity, so that liquid in the shearing box can flow out of the shearing box more smoothly.

Optionally, a support is arranged on the mounting rack, the support is located at one end of the shearing box in the sliding direction, the support comprises two vertical plates and two horizontal plates, the two vertical plates are respectively arranged on two sides of the shearing box in the sliding direction, two ends of each horizontal plate are fixed in one-to-one correspondence with the vertical plates, and the pressure sensors are installed on one side of the shearing box towards the horizontal plates.

Through adopting above-mentioned technical scheme, set up the support and be convenient for pressure sensor's installation, the support is fixed with the mounting bracket through two vertical boards, and the installation is more firm, and the horizontal plate is used for pressure sensor's installation, and the horizontal plate is less to sheltering from of shearing box sliding direction, the condition when being favorable to the observation test.

Optionally, both ends of the sliding direction of the liquid receiving box are provided with stroke limiting assemblies for controlling the sliding stroke of the liquid receiving box.

Through adopting above-mentioned technical scheme, through setting up the spacing subassembly of stroke, the stroke restriction is carried out in sliding of butt joint liquid box and under-cut box for connect liquid box and under-cut box can not excessively slide when sliding, the braking that carries on that can be timely.

Optionally, the stroke limit assembly comprises a stroke switch, an extension rod, a butt joint block and a locking screw, a sliding hole for the extension rod to slide and penetrate is formed in the butt joint block, a locking hole is further formed in the butt joint block, the locking screw is fixed in the locking hole in a butt joint mode, the extension rod is connected with the locking screw in a threaded mode, and the stroke switch is arranged on the extension rod in a far-away mode.

Through adopting above-mentioned technical scheme, the extension rod is used for installing the butt piece for the butt piece can be close to travel switch setting, makes travel switch can install and connect liquid box position far away apart, and travel switch's installation is difficult to influence and connects the installation of liquid box and shearing box and slide.

Optionally, a plurality of brake casters are arranged below the mounting frame.

Through adopting above-mentioned technical scheme, through set up a plurality of brake truckles under the mounting bracket for the instrument can be convenient transport with move, the brake truckle can be fixed by the brake again, makes the mounting bracket move and can be in better remain stable in place after accomplishing.

Optionally, still be provided with a plurality of altitude mixture control subassemblies under the mounting bracket, the altitude mixture control subassembly is including adjusting pole, base and wave the handle, the vertical screw thread regulation hole of having seted up under the mounting bracket, it wears to locate to adjust the pole just thread tightening in the screw thread regulation hole, the base is fixed in adjust pole one end, wave the handle set up in adjust the pole other end and with adjust pole mutually perpendicular.

Through adopting above-mentioned technical scheme, through setting up a plurality of altitude mixture control subassemblies under the mounting bracket, on the one hand, prop up the mounting bracket through altitude mixture control subassembly for the brake truckle is liftoff, and the mounting bracket can be more stable, and on the other hand, a plurality of altitude mixture control subassemblies are through altitude mixture control, make the shearing box of mounting bracket installation can keep higher levelness, better guarantee the degree of accuracy of detected data.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the upper shearing box and the lower shearing box are fixed together, the hoisting rod is fixed with the shearing box through screws, and a lifting hook on the hoisting rod is convenient to lift;

2. the positioning pin column adopts a stepped column, so that the upper shearing box is clamped between the lower shearing box and the end with the larger diameter of the positioning pin column, the arranged antiskid lines are convenient for the installation and the disassembly of the positioning pin column, the arranged liquid receiving box can receive the liquid seeped from the soil, and meanwhile, the liquid guide groove is arranged at the bottom of the liquid receiving cavity, so that the liquid in the shearing box can more smoothly flow out of the shearing box;

3. through set up a plurality of brake truckles and a plurality of altitude mixture control subassembly under the mounting bracket, make the instrument can be convenient transport and move, the brake truckles can carry out the brake again and fix, make the mounting bracket move and can be in better remain stable in place after accomplishing, prop up the mounting bracket through altitude mixture control subassembly simultaneously, make the brake truckles liftoff, the mounting bracket can be more stable, on the other hand, through altitude mixture control, make the shearing box of mounting bracket installation can keep higher levelness, better guarantee the degree of accuracy of detected data.

Drawings

FIG. 1 is a schematic structural diagram 1 of a pressurized state according to an embodiment of the present application;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 1;

FIG. 4 is a sectional view showing the installation of the collecting box and the work plate;

FIG. 5 is a schematic diagram of the construction of the drip chamber and shear chamber;

FIG. 6 is a schematic structural diagram of a pressurized state of an embodiment of the present application, FIG. 2;

FIG. 7 is a schematic view of a driving structure of the driving device;

FIG. 8 is a partial schematic view of the work plate at the location of the brackets;

FIG. 9 is a cross-sectional view of the vertical loading device pressing a sample in the shear box;

FIG. 10 is a schematic structural view of an embodiment of the present application in an unpressurized state;

FIG. 11 is a cross-sectional view of the shear box and locating pin mounting arrangement.

Description of reference numerals: 11. a working plate; 111. a slide rail; 112. a ball bearing; 113. a first mounting boss; 114. a jack; 12. supporting legs; 13. a connecting rod; 131. a threaded adjustment hole; 14. a reinforcing bar; 15. braking the caster; 161. adjusting a rod; 162. a base; 163. shaking the handle; 164. a limiting sleeve; 21. a motor; 22. a housing; 23. a worm gear; 24. a push rod; 311. a rotating rod; 312. a pressurizing rod; 313. pressing a block; 3131. a positioning column; 32. a permeable stone; 33. a pressurizing plate; 331. positioning the projection; 332. positioning holes; 341. a lever; 3411. hanging a ring; 3412. hole turning; 342. a connecting plate; 343. a counterweight; 344. a weight tray; 4. a cutting box; 41. an upper shearing box; 411. an upper sample chamber; 412. a second bearing block; 42. a lower shear box; 421. a lower sample chamber; 43. a sample chamber; 51. positioning the pin column; 52. hoisting the rod; 53. a hook; 54. a positioning pin hole; 541. an upper pin hole; 542. a lower pin hole; 6. a liquid receiving box; 61. a liquid receiving cavity; 62. a chute; 63. a liquid guide groove; 64. a drain pipe; 65. a collection box; 651. a second mounting boss; 652. inserting a column; 66. a first bearing block; 71. a travel switch; 72. an extension rod; 73. a butting block; 731. a sliding hole; 732. a locking hole; 74. a locking screw; 81. a vertical plate; 811. a limiting column; 82. a horizontal plate; 9. a pressure sensor.

Detailed Description

The present application is described in further detail below with reference to figures 1-11.

The embodiment of the application discloses electronic staight scissors appearance. Referring to fig. 1, electronic staight scissors appearance, including the mounting bracket, and set up the drive arrangement on the mounting bracket, vertical loading device, cut box 4, the hoist and mount subassembly, connect liquid box 6, the spacing subassembly of stroke, support and pressure sensor 9, the mounting bracket includes working plate 11, supporting legs 12, connecting rod 13 and stiffener 14, the vertical setting of supporting legs 12 just sets up the four corners of working plate 11 separately, connecting rod 13 has two, a connecting rod 13 corresponds two supporting legs 12 and with supporting legs 12 welded fastening, stiffener 14 has two, the equal one-to-one in both ends of two stiffeners 14 and a connecting rod 13 welded fastening.

Referring to fig. 1 and 2, the side walls of both ends of the two connecting rods 13 are each provided with a brake caster 15, meanwhile, the side walls at the two ends of the two connecting rods 13 are also provided with height adjusting components, the end parts of the connecting rods 13 and the end parts of the supporting feet 12 are arranged at intervals, so that the height adjusting assembly has enough space for adjustment, the height adjusting assembly comprises an adjusting rod 161, a base 162 and a shaking handle 163, the connecting rod 13 is vertically provided with a threaded adjusting hole 131, the adjusting rod 161 is arranged in the threaded adjusting hole 131 in a penetrating way and is fixed by threads, the base 162 is fixed at one end of the adjusting rod 161, the other end of the adjusting rod 161 is horizontally provided with a sliding adjusting hole, the shaking handle 163 is arranged in the sliding adjusting hole in a penetrating way, and the two ends of the swing handle 163 are sleeved with the limiting sleeves 164, so that the swing handle 163 can be adjusted in a sliding manner, and the swing handle 163 can drive the adjusting rod 161 to rotate more easily and is not easy to fall off.

Referring to fig. 1 and 3, the liquid receiving box 6 is provided with a liquid receiving cavity 61 and an opening at the upper side, two sliding grooves 62 are provided at the lower side of the liquid receiving box 6, two sliding rails 111 are arranged on the working plate 11 at intervals, a plurality of balls 112 are embedded on the sliding rails 111 along the length direction, and the two sliding rails 111 can be installed in the two sliding grooves 62 in a one-to-one correspondence manner, so that the liquid receiving box 6 can slide along the length direction of the sliding rails 111.

Referring to fig. 1 and 4, a drain pipe 64 communicated with the liquid receiving cavity 61 is arranged on one side of the liquid receiving box 6, a first mounting protrusion 113 and a collecting box 65 are arranged on one side of the working plate 11, a jack 114 is vertically formed in the first mounting protrusion 113, an opening is formed in the upper side of the collecting box 65, a second mounting protrusion 651 is arranged on one side, facing the working plate 11, of the collecting box 65, the second mounting protrusion 651 is located on the upper side of the first mounting protrusion 113, an inserting column 652 is arranged on the side wall, facing the first mounting protrusion 113, of the second mounting protrusion 651, the inserting column 652 is inserted into the jack 114 through the inserting column 652, so that the collecting box 65 is detachably connected with the working plate 11, an outlet of the drain pipe 64 is located above the collecting box 65, and liquid flowing out of the drain pipe 64 is collected and processed through the collecting box 65.

Referring to fig. 1 and 5, the cutting box 4 is installed in the liquid receiving cavity 61, a plurality of liquid guide grooves 63 are formed in the cavity bottom of the liquid receiving cavity 61, the lower cutting box 42 is fixed to the liquid receiving box 6 through screws, a sample cavity 43 which penetrates through the cutting box 4 up and down and is used for soil sample installation is formed in the cutting box 4, the cutting box 4 comprises an upper cutting box 41 and a lower cutting box 42 which are stacked up and down, an upper sample cavity 411 which penetrates through the upper cutting box 41 up and down is formed in the upper cutting box 41, a lower sample cavity 421 which penetrates through the lower cutting box 42 up and down is formed in the upper cutting box 41, the upper sample cavity 411 and the lower sample cavity 421 form the sample cavity 43, a first bearing block 66 is fixed at the beginning end of the liquid receiving box 6 facing the sliding direction, and a second bearing block 412 is fixed at the end of the upper cutting box 41 facing the sliding direction.

Referring to fig. 6 and 7, the driving device is installed at the beginning of the sliding direction of the liquid receiving box 6, the driving device includes a motor 21, a casing 22, a worm wheel 23 and a push rod 24, the worm wheel 23 is installed in the casing 22, an output shaft of the motor 21 is meshed with the worm wheel 23 to drive the worm wheel 23 to rotate, the worm wheel 23 is sleeved on the push rod 24 and is in threaded connection with the push rod 24, a guide groove is formed in the push rod, the casing 22 is installed in the guide groove through a guide rail to limit the rotation of the push rod 24, one end of the push rod 24 abuts against a first bearing block 66, the push rod 24 is driven to move through the rotation of the worm wheel 23, and the liquid receiving box 6 is pushed through the push rod 24.

Referring to fig. 1 and 8, the support is installed at the end of the sliding direction of the liquid receiving box 6, the support comprises two vertical plates 81 and two horizontal plates 82, the two vertical plates 81 are respectively provided with two sides of the sliding direction of the shearing box 4, one ends of the two vertical plates 81 are fixed with the working plate 11, two ends of the horizontal plate 82 are fixedly connected with the other ends of the two vertical plates 81 in a one-to-one correspondence manner, the pressure sensor 9 is installed on one side, facing the shearing box 4, of the horizontal plate 82, and the pressure sensor 9 is connected with the signal receiver through a signal line to realize pressure detection.

The driving device drives the lower shear box 42 to slide relative to the upper shear box 41 towards the pressure sensor 9, and the second pressure bearing block 412 on the upper shear box 41 abuts against the pressure sensor 9, so that the shear force is measured.

Referring to fig. 1 and 6, there are two stroke limiting assemblies, and the two stroke limiting assemblies are respectively arranged at two ends of the liquid receiving box 6 in the sliding direction.

Referring to fig. 1 and 8, the travel limit assembly includes a travel switch 71, an extension rod 72, an abutment block 73, and a lock screw 74.

Referring to fig. 6, a stroke switch 71 provided at the start of the sliding direction of the liquid receiving container 6 is provided on the side of the housing 22.

Referring to fig. 1, a stroke switch 71 provided at the end of the sliding direction of the liquid receiving box 6 is provided on a side wall of one vertical plate 81 toward the other vertical plate 81.

Referring to fig. 1 and 6, the extension rods 72 of the two stroke limiting assemblies are fixed on the side wall of the liquid receiving box 6 and are arranged in a manner of overhanging towards the corresponding stroke switches 71.

Referring to fig. 1 and 8, a sliding hole 731 for the extension rod 72 to slide and penetrate is formed in the abutting block 73, a locking hole 732 is further formed in the abutting block 73, and the locking screw 74 is fixed in the locking hole 732 in a threaded manner and abuts against the extension rod 72, so that the distance between the abutting block 73 and the liquid receiving box 6 can be adjusted in a sliding manner, and the sliding stroke of the liquid receiving box 6 is controlled.

Referring to fig. 6 and 9, the vertical loading device comprises a loading frame for applying pressure to the soil sample, two permeable stones 32, a pressure plate 33 and a lever assembly connected with the loading frame at the lower side of the mounting frame, and the loading frame is loaded by loading a load on the lever assembly, so that the function of vertical loading is finally realized.

Description is made in a pressurized state:

referring to fig. 6 and 9, two permeable stones 32 are respectively arranged above and below the sample cavity 43, a space between the two permeable stones 32 is used for installing a soil sample, the pressure plate 33 is arranged on the permeable stones 32 positioned on the upper side, the lever assembly comprises a lever 341, a connecting plate 342, a balance weight 343 and a weight tray 344, the connecting plate 342 has two blocks, the two connecting plates 342 are arranged at the lower side of the working plate 11 at intervals and fixed with the working plate 11, the lever 341 is clamped between the two connecting plates 342 and rotatably connected with the connecting plate 342, the balance weight 343 is fixed at one end of the lever 341, the other end of the lever 341 is provided with a hanging ring 3411, the weight tray 344 is fixedly hooked on the hanging ring 3411, the loading frame comprises a rotating rod 311, pressure rods 312 and pressure blocks 313, a rotating hole 3412 is arranged in the middle part of the lever 341, the rotating rod 311 is arranged in the rotating hole 3412 in a penetrating manner, the two pressure rods 312 are arranged, the two pressure rods 312 are vertically arranged and are respectively arranged at two ends of the rotating rod 311 and fixed with the rotating rod 311, two ends of the pressurizing block 313 are fixed with one end of each of the two pressurizing rods 312 far away from the rotating rod 311 in a one-to-one correspondence manner, the pressurizing block 313 is located on the upper side of the pressurizing plate 33, one side, facing the pressurizing plate 33, of the pressurizing block 313 is provided with a positioning post 3131, one side, facing the pressurizing block 313, of the pressurizing plate 33 is provided with a positioning protrusion 331, a positioning hole 332 for inserting the positioning post 3131 is formed in the positioning protrusion 331, and the side walls, back to back, of the two vertical plates 81 are provided with limiting posts 811 for abutting the pressurizing rods 312.

Described in the unpressurized state:

referring to fig. 10 and 11, the hoisting assembly includes positioning pin 51, hoisting rod 52 and lifting hook 53, the last positioning pin hole 54 that has seted up of shearing box 4, there are two positioning pin holes 54, two positioning pin holes 54 set up around shearing box 4 axis 180 degrees rotational symmetry, positioning pin hole 54 is including seting up in the last pinhole 541 of shearing box 41 and seting up in the lower pinhole 542 of shearing box 42 down, positioning pin 51 has two, two positioning pin 51 one-to-one are installed in two positioning pin holes 54, positioning pin 51 is the ladder column, and the less one end of positioning pin 51 diameter is worn to locate in last pinhole 541 and threaded fixation in lower pinhole 542, the maximum diameter of positioning pin 51 is greater than the internal diameter of positioning pin hole 54, the great one end outer wall of positioning pin 51 diameter is provided with anti-skidding line (not shown in the figure).

The hoisting rod 52 passes through the axis of the sample cavity 43, two ends of the hoisting rod 52 are fixed with the upper shear box 41 through screws, and the hook 53 is fixed in the middle of the hoisting rod 52.

The implementation principle of this application embodiment electric direct shear apparatus does: cut box 4 and connect liquid box 6 to hoist from working plate 11 through hoist and mount subassembly and take off, settle soil sample in cutting box 4, again cut box 4 and connect liquid box 6 hoist and mount can the working plate 11 on, slide rail 111 corresponds the installation with spout 62, take off hoist and mount subassembly, apply vertical load to soil sample through vertical loading device, it slides towards pressure sensor 9 direction to cut box 41 relatively on liquid box 6 is received in the drive through drive arrangement drive, measure through pressure sensor 9.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides an electronic staight scissors appearance which characterized in that: the shearing device comprises an installation frame, and a driving device, a vertical loading device, a shearing box (4) and a pressure sensor (9) which are arranged on the installation frame, wherein the shearing box (4) comprises an upper shearing box (41) and a lower shearing box (42) which are stacked up and down, the upper shearing box (41) is provided with an upper sample cavity (411) which penetrates through the upper and lower parts, the lower shearing box (42) is provided with a lower sample cavity (421) which penetrates through the lower part and the upper shearing box (41) is abutted against the pressure sensor (9), and the driving device drives the lower shearing box (42) to slide towards the direction of the pressure sensor (9) relative to the upper shearing box (41);

be provided with hoisting assembly on shearing box (4), hoisting assembly includes locating pin post (51), hoist and mount pole (52) and lifting hook (53), locating pin hole (54) have been seted up on shearing box (4), locating pin hole (54) including set up in last pinhole (541) of last shearing box (41) and set up in lower pinhole (542) of shearing box (42) down, locating pin post (51) install in locating pin hole (54) are interior and fixed go up shearing box (41) and shearing box (42) down, hoist and mount pole (52) both ends with it is fixed to cut box (4) screw, lifting hook (53) are fixed in hoist and mount pole (52).

2. An electric direct shear apparatus as claimed in claim 1, wherein: the utility model discloses a safety lock, including locating pin post (51), last pinhole (541) and threaded fixation down pinhole (542), the maximum diameter of locating pin post (51) is greater than the internal diameter of locating pin hole (54), the great one end outer wall of locating pin post (51) diameter is provided with anti-skidding line, and locating pin post (51) diameter is less than one end wear to locate go up pinhole (541) and threaded fixation down pinhole (542).

3. An electric direct shear apparatus as claimed in claim 1, wherein: still be provided with on the mounting bracket and connect liquid box (6), connect liquid box (6) to follow shear down box (42) glide direction slide install in on the mounting bracket, connect liquid box (6) to have seted up and connect liquid chamber (61), shear box (4) install in connect in liquid chamber (61).

4. An electric direct shear apparatus as claimed in claim 3, wherein: and a liquid guide groove (63) is formed in the bottom of the liquid receiving cavity (61).

5. An electric direct shear apparatus as claimed in claim 1, wherein: be provided with the support on the mounting bracket, the support is located cut box (4) glide direction's one end, the support includes vertical board (81) and horizontal plate (82), vertical board (81) have two, two vertical board (81) divide and establish cut box (4) glide direction's both sides, horizontal plate (82) both ends with vertical board (81) one-to-one is fixed, pressure sensor (9) install in horizontal plate (82) orientation cut one side of box (4).

6. An electric direct shear apparatus as claimed in claim 3, wherein: and stroke limiting assemblies used for controlling the sliding stroke of the liquid receiving box (6) are arranged at the two ends of the sliding direction of the liquid receiving box (6).

7. An electric direct shear apparatus as claimed in claim 6, wherein: the stroke limiting assembly comprises a stroke switch (71), an extension rod (72), a butting block (73) and a locking screw (74), a sliding hole (731) for the extension rod (72) to slide and penetrate is formed in the butting block (73), a locking hole (732) is further formed in the butting block (73), the locking screw (74) is fixed in the locking hole (732) in a threaded mode and abutted to the extension rod (72), and the stroke switch (71) is arranged on one side, far away from the extension rod (72), of the liquid receiving box (6).

8. An electric direct shear apparatus as claimed in claim 1, wherein: a plurality of brake trundles (15) are arranged below the mounting frame.

9. An electric direct shear apparatus as claimed in claim 1 or 8, wherein: still be provided with a plurality of altitude mixture control subassemblies under the mounting bracket, altitude mixture control subassembly is including adjusting pole (161), base (162) and wave handle (163), vertical screw thread regulation hole (131) of seting up under the mounting bracket, adjust pole (161) and wear to locate just thread tightening in screw thread regulation hole (131), base (162) are fixed in adjust pole (161) one end, wave handle (163) set up in adjust pole (161) other end and with adjust pole (161) mutually perpendicular.

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