Crawler angle detection device for a crawler crane

Abstract

This utility model discloses a track angle detection device for a tracked crane, specifically relating to the field of track angle detection technology. It includes a mounting frame and a fixing frame, with the top of the fixing frame fixedly connected to the mounting frame. A detection component is located at the bottom of the fixing frame. The detection component includes an encoder, a first connecting shaft, a second connecting shaft, a gear, multiple fixing bolts, and washers. The top of the first connecting shaft is fixedly connected to the end of the encoder's input shaft, and the first connecting shaft is located on top of the second connecting shaft. The bottom of the second connecting shaft is fixedly connected to the gear. In this utility model, when the rotary gear rotates, the gear rotates synchronously with the rotary gear, thereby driving the encoder's input shaft to rotate. The encoder can accurately record the rotation of the rotary gear based on its own rotation count, angle, and other information. The operation is simple, effectively improving the accuracy of the detection results.

Description

Technical Field

[0001] This utility model relates to the field of track angle detection technology, and more specifically, to a track angle detection device for a tracked crane. Background Technology

[0002] A crawler crane is a large engineering machine that moves by tracks and is specifically designed for lifting and moving heavy objects. Its core function is to move through tracks and to raise, lower, and change the amplitude of the load through an extendable boom. It is widely used in construction scenarios with complex terrain or requiring extremely large lifting capacities. The track angle, as a key parameter reflecting the track support status, directly affects the crawler crane's force balance, lifting stability, and anti-overturning ability. During the rotation, luffing, or movement of the crawler crane, the track angle will dynamically change with the ground conditions and the working posture. If the angle deviation is too large or not detected in time, it can easily cause the crane's center of gravity to shift, leading to safety accidents.

[0003] Existing track angle detection methods mostly rely on manual measurement or indirect sensing calculation: manual measurement is inefficient and cannot capture dynamic angle changes in real time. Some solutions that use tilt sensors are easily affected by ground slope and equipment vibration, and the detection accuracy is greatly affected by the environment. Especially in the linkage detection with the tower crane slewing mechanism, traditional devices lack direct transmission connection with the slewing gear and often calculate the angle through complex linkage mechanisms or indirect sensing methods, which has problems such as large transmission gaps, signal lag, and poor installation adaptability. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a track angle detection device for a tracked crane, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a track angle detection device for a tracked crane, comprising a mounting frame and a fixing frame, wherein the top end of the fixing frame is fixedly connected to the mounting frame, and a detection component is provided at the bottom of the fixing frame. The detection component includes an encoder, a first connecting shaft, a second connecting shaft, a gear, multiple fixing bolts and washers. The top end of the first connecting shaft is fixedly connected to the end of the input shaft of the encoder, and the first connecting shaft is located at the top of the second connecting shaft. The bottom end of the second connecting shaft is fixedly connected to the gear.

[0006] Furthermore, the bottom ends of the plurality of fixing bolts all pass through the first connecting shaft and the second connecting shaft, and the plurality of fixing bolts are threadedly connected to the second connecting shaft.

[0007] Furthermore, the top end of the gasket contacts the first connecting shaft, and the bottom end of the gasket contacts the second connecting shaft.

[0008] As can be seen, in the above technical solution, the stability between the first connecting shaft and the second connecting shaft can be improved by using a shim.

[0009] Furthermore, a frame is fixedly connected to the rear side of the fixing frame, and an adjustment component is provided on the frame. The adjustment component includes a horizontal plate, a sliding plate, a lead screw, two nuts, and two limiting rods. Both ends of the lead screw are fixedly connected to the frame.

[0010] Furthermore, the top of the horizontal plate is fixedly connected to the encoder, the bottom of the slide plate is fixedly connected to the horizontal plate, and the slide plate and the two nuts are movably sleeved on the lead screw, with the opposite sides of the two nuts contacting the slide plate.

[0011] Furthermore, both of the aforementioned limiting rods are fixedly installed inside the fixed frame, and one end of each limiting rod penetrates through the horizontal plate.

[0012] As can be seen, in the above technical solution, the two limiting rods can limit the horizontal plate.

[0013] Furthermore, the mounting bracket has multiple mounting holes on its rear side.

[0014] As can be seen, in the above technical solution, multiple bolts are inserted into multiple mounting holes in sequence, and the mounting frame is fixed to the tower crane shell by the multiple bolts.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model uses multiple fixing bolts to fix the gear to the first connecting shaft. Similarly, gears of different diameters are installed and mesh with the slewing gear of the tower crane. When the slewing gear rotates, the gear rotates synchronously with the slewing gear, thereby driving the input shaft of the encoder to rotate. The encoder can accurately record the rotation of the slewing gear based on its own rotation number, angle and other information. The operation is simple and effectively improves the accuracy of the detection results.

[0017] 2. This utility model releases the fixation between the slide plate and the lead screw by rotating the nut and moving it away from the slide plate. The slide plate moves horizontally, thereby driving the encoder and gear to move horizontally. The gear is finely adjusted so that it can mesh with the rotary gear. Similarly, the slide plate is pressed and fixed by two nuts. The structure is simple and easy to use. At the same time, the two limit rods can limit the horizontal plate. Attached Figure Description

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a perspective view of the present invention from a downward angle;

[0021] Figure 3 This is a schematic diagram of the mounting bracket and frame assembly structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the detection component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the adjustment component structure of this utility model.

[0024] In the diagram: 1. Mounting bracket; 2. Fixing bracket; 3. Detection component; 4. Adjustment component; 5. Frame; 301. Encoder; 302. First connecting shaft; 303. Second connecting shaft; 304. Gear; 305. Fixing bolt; 306. Washer; 401. Horizontal plate; 402. Slide plate; 403. Lead screw; 404. Nut; 405. Limiting rod. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Refer to the instruction manual appendix Figure 1-5This embodiment of a track angle detection device for a tracked crane includes a mounting frame 1 and a fixing frame 2. The top end of the fixing frame 2 is fixedly connected to the mounting frame 1, and a detection component 3 is provided at the bottom of the fixing frame 2. The detection component 3 includes an encoder 301, a first connecting shaft 302, a second connecting shaft 303, a gear 304, multiple fixing bolts 305 and washers 306. The top end of the first connecting shaft 302 is fixedly connected to the end of the input shaft of the encoder 301, and the first connecting shaft 302 is located on top of the second connecting shaft 303. The bottom end of the second connecting shaft 303 is fixedly connected to the gear 304.

[0027] Furthermore, the bottom ends of multiple fixing bolts 305 pass through the first connecting shaft 302 and the second connecting shaft 303, and the multiple fixing bolts 305 are threadedly connected to the second connecting shaft 303. The top end of the washer 306 contacts the first connecting shaft 302, and the bottom end of the washer 306 contacts the second connecting shaft 303.

[0028] Furthermore, a frame 5 is fixedly connected to the rear side of the fixed frame 2. An adjustment component 4 is provided on the frame 5. The adjustment component 4 includes a horizontal plate 401, a sliding plate 402, a lead screw 403, two nuts 404, and two limiting rods 405. Both ends of the lead screw 403 are fixedly connected to the frame 5. The top end of the horizontal plate 401 is fixedly connected to the encoder 301. The bottom end of the sliding plate 402 is fixedly connected to the horizontal plate 401. The sliding plate 402 and the two nuts 404 are movably sleeved on the lead screw 403. The opposite sides of the two nuts 404 are in contact with the sliding plate 402. The two limiting rods 405 are fixedly installed inside the fixed frame 2, and one end of each limiting rod 405 penetrates through the horizontal plate 401.

[0029] Rotating the nut 404 away from the slide plate 402 releases the fixation between the slide plate 402 and the lead screw 403, allowing the slide plate 402 to move horizontally. This, in turn, moves the horizontal plate 401 horizontally, which in turn moves the encoder 301 and the gear 304 horizontally. The gear 304 is then finely adjusted so that it can mesh with the rotary gear. Similarly, the slide plate 402 is pressed and fixed by the two nuts 404. The structure is simple and easy to use. At the same time, the two limit rods 405 can limit the horizontal plate 401.

[0030] Furthermore, the rear side of the mounting bracket 1 has multiple mounting holes.

[0031] The usage method of this embodiment is as follows:

[0032] In use, multiple bolts are inserted sequentially into multiple mounting holes to fix the mounting bracket 1 to the tower crane housing. A shim 306 is placed on top of the second connecting shaft 303, and then placed at the bottom of the first connecting shaft 302. The shim 306 improves the stability between the first and second connecting shafts 302 and 303. Multiple fixing bolts 305 are then used to fix the first and second connecting shafts 302 and 303, thereby fixing the gear 304 to the first connecting shaft 302. Similarly, gears 304 of different diameters are installed, and the gears 304 are aligned with the tower crane's slewing gears. When the rotary gear rotates, gear 304 rotates synchronously with it, thereby driving the second connecting shaft 303 and the first connecting shaft 302 to rotate, which in turn drives the input shaft of encoder 301 to rotate. Encoder 301 can accurately record the rotation of the rotary gear based on its own rotation number, angle, and other information. The angle data of the upper vehicle relative to the lower vehicle calculated by the rotary gear is integrated with the angle data of the upper part of the crane relative to the earth coordinate system provided by the Beidou system. Using a specific mathematical algorithm, the two angle data are added or subtracted, which is simple to operate and effectively improves the accuracy of the detection results.

[0033] It is worth noting that the slewing mechanism is a complete set of devices that enables the upper part of the tower crane to rotate 360 ​​degrees around the center line of the tower body, and the slewing gear is the core transmission component of the slewing mechanism.

[0034] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A track angle detection device for a tracked crane, comprising a mounting frame (1) and a fixing frame (2), wherein the top end of the fixing frame (2) is fixedly connected to the mounting frame (1), characterized in that: The bottom of the mounting bracket (2) is provided with a detection component (3), which includes an encoder (301), a first connecting shaft (302), a second connecting shaft (303), a gear (304), multiple fixing bolts (305) and a washer (306). The top end of the first connecting shaft (302) is fixedly connected to the end of the input shaft of the encoder (301), and the first connecting shaft (302) is located on top of the second connecting shaft (303). The bottom end of the second connecting shaft (303) is fixedly connected to the gear (304).

2. The track angle detection device for a tracked crane according to claim 1, characterized in that: The bottom ends of the plurality of fixing bolts (305) pass through the first connecting shaft (302) and the second connecting shaft (303), and the plurality of fixing bolts (305) are threadedly connected to the second connecting shaft (303).

3. The track angle detection device for a tracked crane according to claim 1, characterized in that: The top end of the gasket (306) is in contact with the first connecting shaft (302), and the bottom end of the gasket (306) is in contact with the second connecting shaft (303).

4. The track angle detection device for a tracked crane according to claim 1, characterized in that: The rear side of the fixed frame (2) is fixedly connected to a frame (5), and an adjustment component (4) is provided on the frame (5). The adjustment component (4) includes a horizontal plate (401), a sliding plate (402), a lead screw (403), two nuts (404) and two limit rods (405). Both ends of the lead screw (403) are fixedly connected to the frame (5).

5. The track angle detection device for a tracked crane according to claim 4, characterized in that: The top of the horizontal plate (401) is fixedly connected to the encoder (301), the bottom of the slide plate (402) is fixedly connected to the horizontal plate (401), and the slide plate (402) and the two nuts (404) are movably sleeved on the lead screw (403), and the two nuts (404) are in contact with the slide plate (402) on opposite sides.

6. The track angle detection device for a tracked crane according to claim 4, characterized in that: Both of the limiting rods (405) are fixedly installed inside the fixing frame (2), and one end of each limiting rod (405) passes through the horizontal plate (401).

7. The track angle detection device for a tracked crane according to claim 1, characterized in that: The mounting bracket (1) has multiple mounting holes on its rear side.

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