Ratchet wrench for track tension detection device

Abstract

The utility model discloses a ratchet wrench for a track tension detection device, which comprises a seat plate and a cover plate, the seat plate and the cover plate are assembled to form an internal space for accommodating a ratchet wheel, the center of the ratchet wheel is provided with a through hole, and the seat plate and the cover plate are provided with corresponding through holes. A height adjusting assembly of the crawler belt tensioning force detection device penetrates through a cover plate, a ratchet wheel and a corresponding through hole of a seat plate, the hole wall of the through hole of the ratchet wheel is fixed to the circumferential outer wall of the height adjusting assembly, one end of the seat plate is a handle, the ratchet wheel and the seat plate are connected in a clamped mode through a connecting mechanism, and the handle rotates to adjust circumferential rotation of the height adjusting assembly. According to the utility model, the height adjustment problem of the crawler belt tension detection device is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ratchet wrenches, in particular to a ratchet wrench for a crawler tension detection device. Background Art

[0002] As a main walking component, the crawler is a key link to ensure the normal and stable walking of the equipment. The crawler is mostly made of rubber. If the rubber crawler is too tight, it will greatly increase the power of the machine and the wear of the driving wheel and the crawler; if the tension of the rubber crawler is too small, vibration and jumping are likely to occur during walking, resulting in the loosening of the rubber crawler. If walking continues, the rubber crawler will be disengaged from the idler wheel.

[0003] At present, there is a lack of precise detection tools. Assembly workers generally check the tension of the agricultural machinery crawler by hand feeling, with large errors and low efficiency, making the actual tension unable to be precisely controlled.

[0004] When an ordinary ratchet wrench is used, it also needs to be fixed with a socket to tighten the bolt. Structurally, a multi-faceted protruding part is arranged at the center of the ratchet. The multi-faceted protruding part is inserted into the socket, and the other end of the socket is inserted into the nut for rotation, so as to release or tighten the connection between the bolt and the nut. Since the body of the crawler tension detection device needs to adjust its own height according to the crawler model, and its top and bottom both need to contact the crawler with special structures, the ordinary ratchet wrench cannot be applied, resulting in the inability to precisely adjust the height of the crawler tension detection device. Summary of the Utility Model

[0005] The utility model provides a ratchet wrench for a crawler tension detection device, which solves the problem of height adjustment of the crawler tension detection device.

[0006] The utility model adopts the following technical solutions:

[0007] The ratchet wrench for a crawler tension detection device includes a ratchet wrench having a base plate and a cover plate. An internal space formed between the two after assembly is used to accommodate the ratchet.

[0008] The center of the ratchet is a through hole. Corresponding through holes are provided on the base plate and the cover plate. The height adjustment component of the crawler tension detection device passes through the through holes of the cover plate, the ratchet, and the base plate. The inner wall of the ratchet through hole is fixed on the outer wall of the circumference of the height adjustment component. One end of the base plate is a handle. The ratchet and the base plate are clamped and connected through a connecting mechanism. The handle rotates to adjust the circumferential rotation of the height adjustment component.

[0009] As an improvement of the above solution, the connecting mechanism includes a protruding column and a limiting block arranged on the base. The limiting block has two symmetrical bending parts, and the two bending parts rotate around the protruding column. A protruding block is also arranged on the limiting block near the center, and the extending direction of the protruding block is opposite to the extending directions of the two bending parts.

[0010] The two bending parts are respectively clamped into or disengaged from the recesses between the ratchet teeth on the left or right side of the ratchet wheel to connect or disconnect the ratchet wheel and the seat plate, and the bending part and the protrusion are located on both sides of the protruding cylinder.

[0011] As an improvement to the above solution, an arched elastic piece is further provided on the base for the protrusion to abut against the left or right side of the arched elastic piece. Rotating the protrusion forces the elastic piece to deform, and the bending part on the left or right side of the corresponding limiting block is clamped into or disengaged from the recesses between the ratchet teeth of the ratchet wheel.

[0012] Optionally, the connecting mechanism includes a protruding cylinder provided on the base and a limiting block centered on the rotation of the protruding cylinder. One end of the limiting block is a bending part for clamping into or disengaging from the recesses between the ratchet teeth of the ratchet wheel to connect or disconnect the ratchet wheel and the seat plate, and the other end of the limiting block is a protrusion. The bending part and the protrusion are located on both sides of the protruding cylinder.

[0013] Further, an elastic piece is also provided on the base for abutting against the protrusion. Rotating the protrusion forces the elastic piece to deform, and the bending part of the limiting block is clamped into or disengaged from the recesses between the ratchet teeth of the ratchet wheel.

[0014] Preferably, the height adjustment component is a sleeve.

[0015] Further, the height adjustment mechanism of the crawler belt tension detection device includes a moving seat plate. The upper part of the moving seat plate is arranged inside the loose side of the crawler belt, and a screw rod is fixedly connected to its lower bottom surface. The screw rod is inserted into the upper inlet of the sleeve, and the two are threadedly connected, so as to adjust the up and down movement of the moving seat plate and thus adjust the height of the entire detection device.

[0016] Preferably, the height adjustment mechanism of the crawler belt tension detection device further includes a fixed seat plate. The fixed seat plate is placed inside the tight side of the crawler belt, and a screw rod is fixedly connected to its upper surface. The screw rod can be inserted into the lower inlet of the sleeve, and the two are threadedly connected, so as to adjust the height of the entire detection device.

[0017] Beneficial effects

[0018] The utility model is fixed on the height adjustment component through the central through hole of the ratchet wheel, and then passes through the corresponding through holes of the cover plate and the seat plate. The cover plate and the seat plate clamp and assemble the ratchet wheel on both sides. The connecting mechanism is used to clamp and connect the ratchet wheel and the seat plate, and the handle rotates to adjust the circumferential rotation of the height adjustment component. Compared with the ordinary ratchet wrench in which the ratchet body is fixed and rotates inside the wrench, in the utility model, the ratchet body is fixed on the height adjustment component, and then the wrench is assembled, and the circumferential rotation is directly transmitted to the height adjustment component through the rotation of the ratchet wheel. Description of the drawings

[0019] Figure 1 It is a schematic assembly structure diagram of a ratchet wrench provided by the utility model;

[0020] Figure 2 is an exploded view of a ratchet wrench provided by the present utility model;

[0021] Figure 3 is a schematic structural diagram of a limit block of a ratchet wrench provided by the present utility model;

[0022] Figure 4 is a schematic assembly structure diagram of a detection device for the tension of a crawler belt and a ratchet wrench provided by the present utility model;

[0023] Figure 5 is a schematic structural diagram of a height adjustment mechanism provided by the present utility model;

[0024] Figure 6 is a schematic assembly structure diagram of a detection device for the tension of a crawler belt, a crawler belt and a ratchet wrench provided by the present utility model. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0026] See Figure 1 , which is a schematic assembly structure diagram of a ratchet wrench provided by the present utility model. The ratchet wrench 400 includes a base plate 410 and a cover plate 420, and a spacer sleeve is arranged between the two to ensure that the internal space formed after the assembly of the base plate and the cover plate can accommodate the ratchet 430.

[0027] The center of the ratchet is a through hole, and the hole wall is fixed on the outer circumferential wall of the sleeve 32 of the height adjustment mechanism by an adhesive nail. Corresponding through holes are provided on the base plate and the cover plate. The sleeve 32 of the height adjustment mechanism sequentially passes through the corresponding through holes of the cover plate, the ratchet, and the base plate. One end of the base plate is a handle 411, and the ratchet and the base plate are clamped and connected through a connecting mechanism, and the handle rotates to adjust the circumferential rotation of the sleeve 32 of the height adjustment mechanism.

[0028] Corresponding through holes are provided on the base plate and the cover plate, and bolts sequentially pass through the cover plate, the hollow spacer sleeve 452, and the base plate, and nuts 451 are cooperated and fixed on the outer sides of the cover plate and the base plate to form a fastening device 450. Two sets of the above-mentioned fastening devices of bolts, spacer sleeves, and nuts are arranged on both sides of the ratchet.

[0029] The connecting mechanism includes a limiting block 440 and a protruding column. The protruding column can be separately provided on the base or can be the spacer sleeve 452 of the fastening device. Preferably, it is the spacer sleeve, which saves space. The spacer sleeve 452 of the fastening device near the handle side passes through the through hole 441 provided on the limiting block. One end bending part 442 of the limiting block is stuck into the concave part between the ratchet teeth of the ratchet wheel 430. The protruding block 443 arranged near the position of the spacer sleeve abuts against the elastic piece 460. The limiting block rotates around the spacer sleeve as the center. The bending part 442 and the protruding block 443 are located on both sides of the spacer sleeve 452, and their extending directions are opposite. Optionally, it rotates around the protruding column provided on the seat plate.

[0030] Two stop blocks 461 are also fixedly arranged on the seat plate to fixedly resist the elastic piece 460. The elastic piece has an arc extending towards the ratchet wheel direction. Under normal conditions, the bending part of the limiting block is stuck into the concave part between the ratchet teeth of the ratchet wheel 430, and the protruding block abuts against the elastic piece; the limiting block rotates around the spacer sleeve as the center, and the protruding block forces the elastic piece to deform, and the bending part of the limiting block disengages from the concave part between the ratchet teeth of the ratchet wheel. The rotation of the protruding block can be realized by radially fixedly arranging a rod body on the spacer sleeve 452. The limiting block is fixedly connected to the spacer sleeve 452. This rod body extends out of the assembly space of the bottom plate and the cover plate, which is convenient for the operator to toggle this protruding block.

[0031] Preferably, the limiting block has two symmetrical bending parts 442. A through hole 441 is arranged at the middle position between the two bending parts. The spacer sleeve 452 of the fastening device passes through the through hole. A protruding block 443 is arranged on the limiting block corresponding to the position of the spacer sleeve. The extending direction of the protruding block is opposite to the extending directions of the two bending parts. So that one bending part cooperates with the protruding block to be stuck into the concave part between the ratchet teeth on the left side of the ratchet wheel, and the other bending part cooperates with the protruding block to be stuck into the concave part between the ratchet teeth on the right side of the ratchet wheel, realizing that the handle can be forced leftward or rightward to rotate the ratchet wheel to move leftward or rightward, and further adjusting the sleeve of the height adjustment mechanism to rotate in both left and right directions. At the same time, one bending part 442 extends out of the assembly space of the bottom plate and the cover plate, which is convenient for the operator to toggle the other bending part 442 to adjust to be stuck into or disengaged from the concave part between the ratchet teeth.

[0032] During use, first insert the sleeve of the height adjustment mechanism into the through hole of the seat plate. The plate surface of the seat plate abuts against the ratchet wheel fixed on the sleeve. Adjust the bending part of the limiting block to be stuck into the concave part between the ratchet teeth of the ratchet wheel to connect the seat plate and the ratchet wheel. Pass the cover plate through the sleeve and cover it on the ratchet wheel, and fixedly assemble and connect the seat plate and the cover plate through the fastening device, and rotate the handle to adjust the height of the detection device.

[0033] The application of the ratchet wrench in the crawler tension detection device is as follows:

[0034] See Figure 1, which is a schematic assembly structure diagram of a detection device for the tension of a crawler belt and the crawler belt provided by the present utility model. The device includes a bearing plate 10, a tension sensor 20, a height adjustment mechanism 30, and a fixed seat plate 40 that are sequentially connected from top to bottom. The upper surface of the bearing plate is used to bear the lower bottom surface of the loose side 100 (upper crawler belt) of the crawler belt, and the fixed seat plate is fixed to the upper bottom surface of the tight side 200 (lower crawler belt) of the crawler belt, that is, the detection device 300 is located between the upper crawler belt and the lower crawler belt of the annular crawler belt. Preferably, the fixed seat plate is located in the middle of the drooping section of the loose side of the crawler belt. The loose side of the crawler belt sinks due to gravity and presses on the bearing plate. Among them, the lowest point of the loose side of the crawler belt is located between the distances when the loose side and the tight side of the crawler belt are in a horizontal parallel state; the pressure value of the loose side of the crawler belt pressing on the detection device represents the crawler belt tension value.

[0035] The crawler belt in the embodiment of the present utility model is mainly aimed at a rubber crawler belt.

[0036] The tension sensor is a pressure sensor, and its output end is connected to the input end of the force value display controller 50. When the tension sensor bears the pressure of the loose side of the crawler belt, it converts the pressure into an electrical signal and inputs it into the processor of the force value display controller and is displayed on the display screen of the force value display controller. The processor compares the pressure value with the alarm threshold stored in the memory of the force value display controller. When it exceeds the threshold, the alarm module alarms to ensure the accuracy of the installation and debugging tension of the crawler belt. The memory is set inside the force value display controller, and it can also be compared with the crawler belt tension alarm threshold stored in the mobile phone or computer background through a wireless module.

[0037] The height adjustment mechanism 30 includes a moving seat plate 31 and a sleeve 32. A screw 33 is fixedly connected to the lower bottom surface of the moving seat plate. The screw is inserted into the upper inlet of the sleeve, and the two are threadedly connected, so that the up and down movement of the moving seat plate can be adjusted to adjust the height of the entire detection device, adapting to the height between the loose side and the tight side of the crawler belts of different specifications of agricultural machinery. A screw 41 is fixedly connected to the upper surface of the fixed seat plate 40. This screw can be inserted into the lower inlet of the sleeve, and the two are threadedly connected, and further the height of the entire detection device can be adjusted to improve the adaptation range of different crawler belt tension detections. Optionally, the fixed seat plate can also be rotatably connected to the sleeve. The non-threaded rotation makes the height of the longitudinal detection device unchanged, and only the moving seat plate moves up and down.

[0038] A sliding measuring scale 61 is fixedly arranged on the side surface of the moving seat plate 31. The sliding measuring scale is a hollow sleeve; a scale value guide rail 62 is fixedly arranged on the side surface of the fixed seat plate 40. One section of the scale value guide rail is flush with the lower bottom surface of the fixed seat plate and is placed in the hollow sleeve of the sliding measuring scale. As the moving seat plate moves up and down, the sliding measuring scale can indicate the scale on the scale value guide rail through a mark.

[0039] The height adjustment mechanism adjusts the height of the detection device through a ratchet wrench 400.

[0040] The force value display controller is fixedly arranged on the side of the movable seat plate, and an alarm lamp is also arranged on the top of the controller.

[0041] Adjust the detection device to the calibration spacing according to the track model; wherein, the lowest point of the loose side of the track is located between the spacings in the horizontal parallel state of the loose side and the tight side of the track.

[0042] Measure the pressure value of the loose side of the track.

[0043] Compare the measured pressure value with the calibration pressure value range, and adjust the tension of the track that does not fall within the calibration pressure value range.

[0044] The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A ratchet wrench for a crawler tension detection device. The ratchet wrench has a base plate and a cover plate. An internal space formed between the two after assembly is used to accommodate the ratchet. It is characterized in that the center of the ratchet is a through hole. Corresponding through holes are provided on the base plate and the cover plate. The height adjustment component of the crawler tension detection device penetrates through the corresponding through holes of the cover plate, the ratchet, and the base plate. The inner wall of the ratchet through hole is fixed on the outer wall of the circumference of the height adjustment component. One end of the base plate is a handle. The ratchet and the base plate are clamped and connected through a connecting mechanism. The handle rotates to adjust the circumferential rotation of the height adjustment component.

2. The ratchet wrench for the crawler tension detection device according to claim 1, characterized in that, The connecting mechanism includes a protruding column and a limiting block provided on the base. The limiting block has two symmetric bending parts. The two bending parts rotate around the protruding column. A protruding block is also provided on the limiting block near the center. The extending direction of the protruding block is opposite to the extending directions of the two bending parts. The two bending parts are respectively clamped into or disengaged from the concave parts between the ratchet teeth on the left or right side of the ratchet to connect or disconnect the ratchet and the base plate. The bending parts and the protruding block are located on both sides of the protruding column.

3. The ratchet wrench for the crawler tension detection device according to claim 2, wherein, An arched elastic piece is also provided on the base for the protruding block to abut against the left or right side of the arched elastic piece. Rotating the protruding block forces the elastic piece to deform, and the bending part on the left or right side of the limiting block is clamped into or disengaged from the concave part between the ratchet teeth.

4. The ratchet wrench for the crawler tension detection device according to claim 2, characterized in that, One bending part extends out of the assembly space of the bottom plate and the cover plate to adjust the other bending part to be clamped into or disengaged from between the ratchet teeth.

5. The ratchet wrench for the crawler tension detection device according to claim 1, characterized in that The connecting mechanism includes a protruding column provided on the base and a limiting block with the rotating center of the protruding column. One end of the limiting block is a bending part for clamping into or disengaging from the concave part between the ratchet teeth to connect or disconnect the ratchet and the base plate. The other end of the limiting block is a protruding block. The bending part and the protruding block are located on both sides of the protruding column.

6. The ratchet wrench for the crawler tension detection device according to claim 5, characterized in that, An elastic piece is also provided on the base for abutting against the protruding block. Rotating the protruding block forces the elastic piece to deform, and the bending part of the limiting block is clamped into or disengaged from the concave part between the ratchet teeth.

7. The ratchet wrench for the crawler tension detection device according to claim 1, characterized in that, The height adjustment component is a sleeve.

8. The ratchet wrench for the crawler tension detection device according to claim 7, characterized in that, The height adjustment mechanism of the crawler tension detection device includes a moving base plate. The moving base plate is arranged inside the loose side of the crawler. A screw rod is fixedly connected to its lower bottom surface. The screw rod is inserted into the upper inlet of the sleeve, and the two are threadedly connected. The up and down movement of the moving base plate can be adjusted to adjust the height of the entire detection device.

9. The ratchet wrench for the crawler tension detection device according to claim 8, characterized in that, The height adjustment mechanism of the crawler tension detection device further includes a fixed base plate. The fixed base plate is placed inside the tight side of the crawler. A screw rod is fixedly connected to its upper surface. The screw rod can be inserted into the lower inlet of the sleeve, and the two are threadedly connected. The height of the entire detection device can be adjusted.

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