Crawler belt tensioning force detection device
By designing a track tension detection device, the problem of track tension cannot be accurately measured is solved, and the precise debugging of track tension is achieved, which improves assembly efficiency and reduces equipment losses.
Patent Information
- Application Number
- CN202422247834.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The lack of precise track tension detection tools causes assembly workers to be unable to accurately control the track tension, which has large errors and low efficiency.
A detection device for tensioning force of tracks is designed, including a pressure bearing plate, a tensioning force sensor, a height adjustment mechanism and a fixed seat plate. The pressure of the loose edge of the track is measured by the sensor and converted into an electrical signal to display the tensioning force value. Combined with the force value display controller and a height adjustment mechanism, the track tensioning force is accurately adjusted.
Accurate measurement and debugging of track tension force is realized, preventing track tension force from being too large or too small, avoiding loss and vibration jump of drive wheels and tracks, and improving assembly efficiency.
Smart Images
Figure CN223179674U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of track detection, in particular to a device for detecting the tension of a track. Background Art
[0002] As a main walking component, the track is a key link to ensure the normal and stable walking of the equipment. The track is mostly made of rubber. If the rubber track is too tight, it will greatly increase the power of the machine and the loss of the driving wheel and the track; if the tension of the rubber track is too small, vibration and jumping are likely to occur during walking, resulting in the loosening of the rubber track. If walking continues, the rubber track will be disengaged from the tensioning wheel.
[0003] At present, there is a lack of accurate detection tools. Assembly workers generally check the tension of the agricultural machinery track by hand feeling, which has a large error and low efficiency, making it impossible to accurately control the actual tension. Content of the Utility Model
[0004] The utility model provides a device for detecting the tension of a track, which solves the problems that the installation and debugging of the track and the tension cannot be directly measured.
[0005] The utility model adopts the following technical solutions:
[0006] The utility model provides a device for detecting the tension of a track, which comprises: a bearing plate, a tension sensor, a height adjusting mechanism and a fixed seat plate, which are sequentially connected from top to bottom. The bearing plate bears the inner side of the loose side of the track, and the fixed seat plate is placed on the inner side of the tight side of the track; the height adjusting mechanism is adjusted to an appropriate height according to different track models. At the appropriate height, the tension sensor receives the pressure of the loose side of the track, converts it into an electric signal for display, and this pressure value represents the track tension value; wherein, the lowest point of the loose side of the track is located between the distances of the loose side and the tight side of the track in a horizontal and parallel state.
[0007] As an improvement of the above solution, the device for detecting the tension of the track further comprises a force value display controller, and the output end of the tension sensor is connected to the input end of the force value display controller.
[0008] As an improvement of the above solution, the height adjusting mechanism moves the seat plate and the sleeve. The lower bottom surface of the moving seat plate is fixedly connected with a screw rod, and the screw rod 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 whole detection device.
[0009] As an improvement of the above solution, the upper surface of the fixed seat plate is fixedly connected with a screw rod, and the screw rod can be inserted into the lower inlet of the sleeve, and the two are threadedly connected, so that the height of the whole detection device can be adjusted.
[0010] As an improvement to the above solution, a sliding measuring ruler is fixedly arranged on the side of the movable seat plate. The sliding measuring ruler is a hollow sleeve; a scale value guide rail is fixedly arranged on the side of the fixed seat plate. One section of the scale value guide rail is flush with the lower bottom surface of the fixed seat plate and is placed inside the hollow sleeve of the sliding measuring ruler. As the movable seat plate moves up and down, the sliding measuring ruler can indicate the scale on the scale value guide rail through a mark.
[0011] As an improvement to the above solution, the detecting device for the crawler tension further includes a ratchet wrench. The ratchet wrench has a seat plate and a cover plate. The internal space formed between the two after assembly is used to accommodate the ratchet.
[0012] The center of the ratchet is a through hole. Corresponding through holes are provided on the seat plate and the cover plate. The sleeve of the height adjusting mechanism passes through the corresponding through holes of the cover plate, the ratchet, and the seat plate. The inner wall of the ratchet through hole is fixed on the outer circumferential wall of the sleeve of the height adjusting mechanism. One end of the seat plate is a handle. The ratchet and the seat plate are clamped and connected through a connecting mechanism. The handle rotates to adjust the circumferential rotation of the sleeve.
[0013] As an improvement to the above solution, the connecting mechanism includes a protruding column and a limiting block arranged 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.
[0014] 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 seat plate. The bending parts and the protruding block are located on both sides of the protruding column.
[0015] As an improvement to the above solution, the connecting mechanism includes a protruding column arranged on the base and a limiting block with the rotation 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 of the ratchet to connect or disconnect the ratchet and the seat 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.
[0016] As an improvement to the above solution, a spring piece is further arranged on the base for abutting against the protruding block. Rotating the protruding block forces the spring piece to deform, and the bending part of the limiting block clamps into or disengages from the concave part between the ratchet teeth of the ratchet.
[0017] Beneficial effects
[0018] The detection device for calibrating the height position of the crawler tension force of the utility model determines the height position through the crawler model, accurately measures and locates the height through a sliding measuring scale, then measures the pressure of the loose side of the crawler on the detection device longitudinally, and thus displays it on the force value display controller. By comparing with the stored calibrated pressure value, it determines whether to alarm, and adjusts the crawler according to the currently measured pressure value of the loose side of the crawler until the calibrated pressure value is reached, realizing the precise debugging of the crawler. It prevents the driving wheel and the wheel belt from being worn due to the crawler being too tight. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 FIG. is a schematic assembly structure diagram of a detection device for crawler tension force provided by the utility model and a crawler;
[0020] Figure 2 FIG. is a schematic structure diagram of a detection device for crawler tension force provided by the utility model;
[0021] Figure 3 FIG. is a schematic circuit structure diagram of a force value display controller of a detection device for crawler tension force provided by the utility model;
[0022] Figure 4 FIG. is a schematic structure diagram of a height adjustment mechanism provided by the utility model;
[0023] Figure 5 FIG. is a schematic assembly structure diagram of a ratchet wrench provided by the utility model;
[0024] Figure 6 FIG. is an exploded view of a ratchet wrench provided by the utility model;
[0025] Figure 7 FIG. is a schematic structure diagram of a limit block of a ratchet wrench provided by the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model.
[0027] See Figure 1, which is a schematic diagram of the assembly structure of a track tension detection device and a track 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 track) of the track, and the fixed seat plate is fixed to the upper bottom surface of the tight side 200 (lower track) of the track, that is, the detection device 300 is located between the upper track and the lower track of the annular track. Preferably, the fixed seat plate is located in the middle of the sagging section of the loose side of the track. The loose side of the track sinks due to gravity and presses on the bearing plate. Among them, the lowest point of the loose side of the track is located between the spacing when the loose side of the track and the tight side of the track are in a horizontal parallel state; the pressure value of the loose side of the track pressing on the detection device represents the track tension value.
[0028] The track of the embodiment of the present utility model is mainly aimed at a rubber track.
[0029] 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 track, it converts the pressure into an electrical signal and inputs it into the processor of the force value display controller and displays it 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 the threshold is exceeded, the alarm module alarms to ensure the accuracy of the track installation and commissioning tension. The memory is set inside the force value display controller, and it can also be compared with the track tension alarm threshold stored in the mobile phone or computer background through the wireless module.
[0030] 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, thereby adjusting the height of the entire detection device to adapt to the height between the loose side and the tight side of the tracks of different specifications of agricultural machinery. A screw 41 is fixedly connected to the upper surface of the fixed seat plate 40. The screw can be inserted into the lower inlet of the sleeve, and the two are threadedly connected. Further, the height of the entire detection device can be adjusted to improve the adaptation range of different track tension detections. Optionally, the fixed seat plate can also be rotatably connected to the sleeve, and the non-threaded rotation keeps the height of the longitudinal detection device unchanged, and only the moving seat plate moves up and down.
[0031] A sliding measuring scale 61 is fixedly arranged on the side 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 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.
[0032] The force value display controller is fixedly arranged on the side of the moving seat plate, and an alarm lamp is also arranged on the top of the controller.
[0033] The height adjustment mechanism adjusts the height of the detection device through a ratchet wrench 400. The ratchet wrench 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.
[0034] The center of the ratchet is a through hole, and the hole wall is fixed on the outer circumferential wall of the sleeve of the height adjustment mechanism by adhesive nails. 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 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 is snap-connected to the base plate through a connecting mechanism, and the handle rotates to adjust the circumferential rotation of the sleeve of the height adjustment mechanism.
[0035] Corresponding through holes are provided on the base plate and the cover plate. 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.
[0036] The connecting mechanism includes a limiting block 440 and a protruding cylinder. The protruding cylinder can be separately arranged on the base, or can be the spacer sleeve 452 of the fastening device. Preferably, the spacer sleeve 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 430. A protruding block 443 arranged near the spacer sleeve position abuts against the elastic piece 460. The limiting block rotates around the spacer sleeve as the center, and the bending part 442 and the protruding block 443 are located on both sides of the spacer sleeve 452 and extend in opposite directions. Optionally, it rotates around the protruding cylinder arranged on the base plate as the center.
[0037] Two stop blocks 461 are also fixedly arranged on the base plate to fixedly block the elastic piece 460. The elastic piece has an arc extending towards the ratchet direction. Under normal conditions, the bending part of the limiting block is stuck into the concave part between the ratchet teeth of the ratchet 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. The rotation of the protruding block can be realized by radially fixedly arranging a rod on the spacer sleeve 452, and the limiting block is fixedly connected to the spacer sleeve 452. This rod extends out of the assembly space of the bottom plate and the cover plate, which is convenient for the operator to dial the protruding block.
[0038] Preferably, the limit block has two symmetrical bends 442, with a through hole 441 provided in the middle of the two bends, through which a spacer 452 of the fastening device passes. A protrusion 443 is provided on the limit block at the corresponding spacer position, and the extension direction of the protrusion is opposite to the extension direction of the two bends. One bend cooperates with the protrusion to snap into the gear recess on the left side of the ratchet, and the other bend cooperates with the protrusion to snap into the gear recess on the right side of the ratchet. This allows the handle to be applied to the left or right to rotate the ratchet to the left or right, thereby adjusting the sleeve of the height adjustment mechanism to rotate in either direction. At the same time, one bend 442 extends out of the assembly space between the base plate and the cover plate, making it easier for the operator to move the other bend 442 to adjust the engagement or disengagement between the ratchet teeth.
[0039] When in 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 rests against the ratchet fixed on the sleeve, the bending part of the adjustment limit block is clamped into the recess between the ratchet teeth of the ratchet, the seat plate and the ratchet are connected, the cover plate is passed through the sleeve and covered on the ratchet, the seat plate and the cover plate are fixed and assembled by the fastening device, and the handle is turned to adjust the height of the detection device.
[0040] The present invention also provides a method for detecting track tension, the method comprising the following steps:
[0041] Step 1: Adjust the height of the detection device to a calibrated height according to the track model; wherein the lowest point of the loose side of the track is located between the distance between the loose side of the track and the tight side of the track in a horizontally parallel state.
[0042] Step 2: Measure the pressure value of the loose side of the track.
[0043] Step 3: Compare the measured pressure value with the calibrated pressure value range, and adjust the tension of the crawler track that does not fall within the calibrated pressure value range.
[0044] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.
Claims
1. Detection device for crawler tensioning force, characterized in that, Including: A load-bearing plate, a tension force sensor, a height adjustment mechanism and a fixed seat plate which are sequentially connected from top to bottom. The load-bearing plate bears the inner side of the loose side of the crawler, and the fixed seat plate is placed on the inner side of the tight side of the crawler; the height adjustment mechanism adjusts to a suitable height according to different crawler models. At the suitable height, the tension force sensor receives the pressure of the loose side of the crawler, converts it into an electrical signal for display, and this pressure value represents the crawler tension force value; among them, the lowest point of the loose side of the crawler is located between the distances of the loose side and the tight side of the crawler in a horizontal parallel state.
2. The detecting device for the crawler tension force according to claim 1, wherein It also includes a force value display controller, and the output end of the tension force sensor is connected to the input end of the force value display controller.
3. The detecting device for the crawler tension force according to claim 1, wherein The height adjustment mechanism includes a movable seat plate and a sleeve. A screw rod is fixedly connected to the lower bottom surface of the movable seat plate. The screw rod is inserted into the upper inlet of the sleeve, and the two are threadedly connected, and the up and down movement of the movable seat plate can be adjusted to adjust the height of the entire detection device.
4. The detecting device for the crawler tension force according to claim 3, characterized in that A screw rod is fixedly connected to the upper surface of the fixed seat plate. This screw rod can be inserted into the lower inlet of the sleeve, and the two are threadedly connected, and the height of the entire detection device can be adjusted.
5. The detecting device for the crawler tension force according to claim 3, wherein A sliding measuring scale is fixedly arranged on the side of the movable seat plate. The sliding measuring scale is a hollow sleeve; a scale value guide rail is fixedly arranged on the side of the fixed seat plate. 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 movable seat plate moves up and down, the sliding measuring scale can indicate the scale on the scale value guide rail through a mark.
6. The detecting device for the crawler tension force according to claim 3, characterized in that, It also includes a ratchet wrench. The ratchet wrench has a seat plate and a cover plate, and the internal space formed between the two after assembly is used to accommodate the ratchet. The center of the ratchet is a through hole. Corresponding through holes are provided on the seat plate and the cover plate. The sleeve of the height adjustment mechanism passes through the corresponding through holes of the cover plate, the ratchet and the seat plate. The inner wall of the through hole of the ratchet is fixed on the outer circumferential wall of the sleeve of the height adjustment mechanism. One end of the seat plate is a handle, and the ratchet and the seat plate are snap-connected through a connecting mechanism, and the handle rotates to adjust the circumferential rotation of the sleeve.
7. The detecting device for the crawler tension force according to claim 6, characterized in that, The connecting mechanism includes a protruding column and a limiting block arranged on the base. The limiting block has two symmetrical bending parts. The two bending parts rotate around the protruding column. A protruding block is also arranged 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 snapped 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 seat plate. The bending parts and the protruding block are located on both sides of the protruding column.
8. The detecting device for the crawler tension force according to claim 6, characterized in that, The connecting mechanism includes a protruding column arranged on the base and a limiting block with the rotation center of the protruding column. One end of the limiting block is a bending part, which is used to snap into or disengage from the concave part between the ratchet teeth of the ratchet to connect or disconnect the ratchet and the seat 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.
9. The detecting device for the crawler belt tension force according to claim 7 or 8, characterized in that A spring piece is also arranged on the base, which is used to abut against the protruding block. Rotating the protruding block forces the spring piece to deform, and the bending part of the limiting block snaps into or disengages from the concave part between the ratchet teeth of the ratchet.