Angular displacement sensor mounting bracket and engineering machinery

Abstract

The utility model discloses an angular displacement sensor mounting bracket and engineering machinery, which are assembled at a hinged part formed by a fixing mechanism and a rotating mechanism and comprise a sensor mounting bracket, a fixing bracket, a pressing assembly and a swinging arm, the sensor mounting bracket is provided with an angular displacement sensor and a rotating arm thereof; the fixing bracket is used for mounting the sensor mounting bracket, and the fixing bracket and the sensor mounting bracket are fixed into a whole and then mounted on the fixing mechanism; the pressing assembly is mounted on the fixing mechanism and is used for axially fixing the sensor mounting bracket and the fixing bracket; and the swinging arm is used for connecting the rotating arm and the rotating mechanism, so that the rotating arm can rotate along with the rotating mechanism for angle measurement. Compared with a traditional angular displacement sensor installation mode, the interchangeability is improved, and installation and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to the field of engineering machinery, in particular to a mounting bracket for an angular displacement sensor. Background Art

[0002] Loaders are a type of engineering machinery used for material transfer in ports, docks, cargo yards, etc. The working linkage mechanism of traditional loaders includes boom lifting, lowering, bucket flipping, etc., and shoveling materials is mostly a combined action. In addition, many operating occasions require people to work continuously without stopping the machine, which requires the driver to have high operating skills. At the same time, high-intensity operations make the driver easily fatigued and reduce operating efficiency.

[0003] With the development of technology, the loader has developed a computer-controlled intelligent shoveling and efficient operation mode. This function adds an angular displacement sensor and a mounting mechanism to the loader's working linkage mechanism to measure the angle position of the boom and bucket. However, the existing angular displacement sensors have problems such as insufficient protection of the mounting plate, the need to redesign according to different measured parts, poor interchangeability, difficulty in maintenance, difficulty in calibration, and difficulty in installation when the two measured parts have large processing errors. Summary of the invention

[0004] In view of the above-mentioned problems, the utility model provides an angular displacement sensor mounting bracket, focusing on solving the problems of poor interchangeability, difficult calibration, low error compensation capability, etc. of the existing angular displacement sensor mounting bracket.

[0005] The utility model is realized by the following technical solutions:

[0006] In a first aspect, the utility model provides an angular displacement sensor mounting bracket, which is assembled at a hinged portion formed by a fixing mechanism and a rotating mechanism, and comprises:

[0007] A sensor mounting bracket, on which an angular displacement sensor and a rotating arm thereof are mounted;

[0008] A fixing bracket, used to install the sensor mounting bracket, and the two are fixed into a whole and then installed on the fixing mechanism;

[0009] A clamping assembly, mounted on the fixing mechanism, for axially fixing the sensor mounting bracket and the fixing bracket;

[0010] The swing arm is used to connect the rotating arm and the rotating mechanism so that the rotating arm can rotate along with the rotating mechanism to perform angle measurement.

[0011] In some embodiments, the sensor mounting bracket is cylindrical as a whole, and consists of a circular plate and an annular side plate extending downward around the periphery of the circular plate; the angular displacement sensor is assembled in the inner cavity of the sensor mounting bracket; an arc-shaped hole is opened on the annular side plate for extending the rotating arm.

[0012] In some embodiments, the circular plate is provided with two indicator marks above the arc-shaped hole, and the two indicator marks are located between the arc-shaped holes; the angle of the minor arc area between the two indicator marks is greater than the upper limit of rotation of the rotating mechanism on the fixing mechanism.

[0013] In some embodiments, a viewing hole for viewing the angular displacement sensor marker is opened in the center of the circular plate.

[0014] In some embodiments, at least one handle is fixed to the circular plate.

[0015] In some embodiments, the clamping assembly consists of a fixing bolt and a clamping plate; the clamping plate is a long straight plate with a protrusion in the middle and through holes at both ends; when only one clamping plate is used, the clamping plate is arranged on the sensor mounting bracket, and a fixing bolt is inserted into each of the through holes on both sides to fix the clamping plate to the fixed bracket; when at least two clamping plates are used, two adjacent clamping plates are installed alternately in front and back, and multiple clamping plates are arranged in a preset shape and arranged on the sensor mounting bracket, and a fixing bolt is inserted into each of the through holes on both sides to fix the clamping plate to the fixed bracket.

[0016] In some embodiments, the sensor mounting bracket is connected to the fixing bracket in a plug-in manner for circumferential fixation.

[0017] In some embodiments, the fixing bracket is provided with a circle of evenly spaced mounting grooves, and the bottom of the sensor mounting bracket is provided with a plurality of evenly spaced fixing teeth, and the shape of the mounting grooves matches the fixing teeth to achieve 360-degree installation of the sensor mounting bracket.

[0018] In some embodiments, the fixing bracket is formed by bending a single plate, and the whole structure is in the shape of a Chinese character "X";

[0019] A maintenance opening for installing, disassembling and repairing the angular displacement sensor is arranged in the middle of the fixing bracket; installation grooves are evenly distributed around the maintenance opening, and a plurality of clamping assembly installation holes are arranged on the outer side of the maintenance opening.

[0020] In a second aspect, the utility model provides an engineering machine equipped with the above-mentioned angular displacement sensor mounting bracket.

[0021] In some embodiments, the construction machine includes a loader.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] 1. The sensor mounting bracket is separated from the fixed bracket structure. To meet the needs of different vehicle models, only different fixed brackets and swing arms need to be redesigned, and the sensor mounting bracket and clamping assembly can be universal.

[0024] 2. The sensor mounting bracket and the fixed bracket are fixed circumferentially with fixed teeth, and can rotate 360 ​​degrees in a full circle, and the angle of each rotation is the same as the angle of the fixed teeth. When installing the angle sensor limiter, rotate the measured part to an extreme position, align the indicator arrow with the swing arm after installation, and there is no need to recalibrate the sensor range.

[0025] 3. Designed with handles and maintenance holes to facilitate assembly, disassembly and maintenance of the whole or parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0027] In the attached picture:

[0028] Figure 1 This is a schematic diagram of the mounting bracket structure of the angular displacement sensor of the utility model;

[0029] In the figure, 1 is a sensor mounting bracket, 2 is a fixing bracket, 3 is a clamping assembly, and 4 is a swing arm.

[0030] Figure 2 It is a top view of the sensor mounting bracket of the utility model;

[0031] Figure 3 This is a main cross-sectional view of the sensor mounting bracket of the utility model;

[0032] In the figure, 1.1 circular plate, 1.2 handle, 1.3 angular displacement sensor, 1.4 annular side plate, 1.5 rotating arm, 1.6 pin.

[0033] Figure 4 This is a schematic diagram of the fixed bracket structure of the utility model;

[0034] In the figure, 2.1 maintenance port, 2.2 installation slot, 2.3 clamping assembly installation hole.

[0035] Figure 5 This is a schematic diagram of the clamping assembly of the utility model;

[0036] In the figure, 3.1 is the clamping plate, 3.2 is the clamping plate mounting bolt, and 3.3 is the clamping plate mounting nut.

[0037] Figure 6 This is a schematic diagram of the application of the angular displacement sensor mounting bracket of the utility model;

[0038] In the figure, 1 is a sensor mounting bracket, 2 is a fixing bracket, 3 is a clamping assembly, 4 is a swing arm, 5 is a front frame, and 6 is a movable arm.

[0039] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] like Figure 1 , Figure 6 As shown, an angular displacement sensor mounting bracket is mainly fixed on the front frame 5 of the loader and the boom 6 hinged to the front frame 5. The angular displacement sensor mounting bracket includes the following four parts: 1. A sensor mounting bracket 1 on which the angular displacement sensor and its rotating arm are mounted; 2. A fixing bracket 2 for mounting the sensor mounting bracket 1; 3. A clamping assembly 3 for fixing the sensor mounting bracket 1 and the fixing bracket 2 to prevent their relative axial displacement; 4. A swing arm 4 for connecting the angular displacement sensor and the measured object.

[0044] The above-mentioned sensor mounting bracket is further described below.

[0045] like Figure 2 , Figure 3 As shown, the sensor mounting bracket 1 is cylindrical and is welded by a circular plate 1.1 with a center hole, a bolt mounting hole and two indicator marks (arrow marks), an annular side plate 1.4 with fixed teeth at the bottom, and a handle 1.2. The fixed teeth are shown as rectangles, and can also be modified to other shapes according to actual needs. The sensor mounting bracket 1 and the angular displacement sensor 1.3 are connected by bolts. The sensor range should ensure that it includes the inferior arc area between the two indicator marks. When designed, the default initial position of the sensor is aligned with one of the indicator marks. A center hole is opened on the circular plate 1.1 to view the angular displacement sensor mark. An arc hole is opened on the annular side plate 1.4 for the extension of the rotating arm 1.5. The angle of the arc hole should completely include the inferior arc area between the two indicator marks. The sensor mounting bracket 1 surrounds the angular displacement sensor 1.3 for protection.

[0046] The above-mentioned fixing bracket is further described below.

[0047] like Figure 4 As shown, the fixing bracket 2 is formed by bending a single plate. A maintenance opening 2.1 is provided in the middle of the fixing bracket 2 for installing, disassembling and repairing the angular displacement sensor 1.3. Mounting grooves 2.2 are evenly distributed around the maintenance opening 2.1, and the shape of the mounting grooves 2.2 corresponds to the fixing teeth of the sensor mounting bracket 1. A clamping assembly mounting hole 2.3 is provided on the outside of the maintenance opening 2.1.

[0048] The above-mentioned clamping assembly is further described below.

[0049] like Figure 5 As shown, the clamping assembly 3 is composed of a fixing bolt and a clamping plate 3.1. The clamping plate 3.1 is a long straight plate with a bulge in the middle and holes at both ends. The number of clamping assemblies 3 can be adjusted according to actual conditions. When the number of clamping plates 3.1 used is one, the clamping plate 3.1 is arranged on the sensor mounting bracket 1, and a fixing bolt is inserted into each through hole on both sides to fix the clamping plate 3.1 on the fixing bracket 2. When the number of clamping plates 3.1 used is at least two, two adjacent clamping plates 3.1 are installed in a staggered manner, and multiple clamping plates 3.1 are arranged on the sensor mounting bracket 1 after being arranged in a preset shape, and a fixing bolt is inserted into each through hole on both sides to fix the clamping plate 3.1 on the fixing bracket 2. The clamping assembly 3 is used to prevent the sensor mounting bracket 1 and the fixing bracket 2 from axial displacement.

[0050] Continue to refer to Figure 1 As shown, the swing arm 4 can be a bent plate or other shapes, and is required to have one end fixed on the measured object and the other end connected to the rotating arm 1.5.

[0051] Combination Figures 1 to 6 As shown, an angular displacement sensor mounting bracket includes a front frame 5 and a movable arm 6 hinged on the front frame 5. The specific steps of installation are as follows:

[0052] 1. During installation, the boom 6 needs to be lowered to the lowest point, which is the lower limit position of the boom 6 rotation.

[0053] 2. Install the fixing bracket 2: Fix the fixing bracket 2 to the front frame 5 by welding or bolting.

[0054] 3. Install the swing arm 4: fix the swing arm 4 to the boom 6 by welding or bolting.

[0055] 4. Install the sensor mounting bracket 1: The sensor mounting bracket 1 needs to be referred to in advance Figure 2 , 3 Install separately, and weld the circular plate 1.1, handle 1.2, and annular side plate 1.4 together. The rotating arm 1.5 is installed on the angular displacement sensor 1.3, and the pin 1.6 is installed on the rotating arm 1.5. There is no requirement for the installation method, as long as it is firm. The angular displacement sensor 1.3 with the rotating arm 1.5 and the pin 1.6 installed is fixed to the circular plate 1.1 by bolt connection. During installation, it should be ensured that the working range of the angular displacement sensor 1.3 completely includes the inferior arc area between the two indicator marks on the circular plate 1.1. It should be noted that the inferior arc area angle between the two indicator marks should be designed to be greater than the upper limit of the actual stroke of the boom 6 when it is working, to ensure that when the boom 6 moves, the rotating arm 1.5 will not interfere with the annular side plate 1.4 and the rotating arm 1.5 will not exceed the working range of the angular displacement sensor 1.3. When installing the sensor mounting bracket 1, align the rotating arm 1.5 with the lower limit position arrow mark on the circular plate 1.1, connect the pin 1.3 with the swing arm 4, and insert the fixed tooth on the annular side plate 1.4 into the mounting groove 2.2 on the fixed bracket 2. If the marks cannot be perfectly aligned due to the shape or spacing of the fixed tooth and the mounting groove 2.2, the rotating arm 1.5 can be slightly offset toward the stroke center while ensuring that the upper limit of the angular displacement sensor stroke is not exceeded. The offset angle should not be greater than the angle between two adjacent fixed teeth.

[0056] 5. Install the clamping assembly 3: The clamping plate 3.1 is connected to the fixed bracket 2 using the clamping plate mounting bolts 3.2 and the clamping plate mounting nuts 3.3. The middle part of the clamping plate 3.1 clamps the mounting bracket 1 to prevent its axial displacement. The number and position of the clamping plates 3.1 can be adjusted according to the site conditions. When the number of clamping plates 3.1 used is greater than 1, adjacent clamping plates 3.1 should be installed alternately in the positive and negative directions.

[0057] During actual operation, the movable arm 6 rotates upward with the front frame hinge as the center, driving the swing arm 4 to rotate upward as the center of the front frame hinge. The swing arm 4 drives the rotating arm 1.5 to rotate, and then transmits the angular displacement information to the angular displacement sensor 1.3. The angular displacement sensor 1.3 converts the angular displacement information into an angular displacement signal that can be recognized by the intelligent system, and transmits it to the loader intelligent control system and responds, thereby achieving the purpose of auxiliary control.

[0058] In addition to being installed at the boom-frame connection as shown in the example, this structure can also be applied to the rocker boom connection, the front and rear frame connection, or other non-loader engineering machinery systems.

[0059] In summary, the utility model provides an angular displacement sensor mounting bracket, in which a fixed bracket is mounted on the front frame, and the sensor mounting bracket is circumferentially fixed to the fixed bracket by a fixed tooth method, and is axially fixed by a clamping assembly. An angular displacement sensor is installed in the middle of the sensor mounting bracket, and the movable arm is connected to the swing arm through a rotating arm, so as to measure the rotation angle of the movable arm. There is no need to consider the angle in advance when installing the utility model. You only need to adjust the movable arm to the lowest point, align the indicator arrow of the sensor mounting bracket with the swing arm for installation, and prevent sensor signal fluctuations caused by processing errors. It can also improve versatility. For different positions and different models, you only need to redesign the fixed bracket, and the sensor mounting bracket can be universal. Compared with the traditional angular displacement sensor installation method, it improves interchangeability and facilitates installation and maintenance.

[0060] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0061] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0062] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. An angular displacement sensor mounting bracket, characterized in that: Assembled at the hinged part formed by the fixed mechanism and the rotating mechanism, including: A sensor mounting bracket, on which an angular displacement sensor and a rotating arm thereof are mounted; A fixing bracket, used to install the sensor mounting bracket, and the two are fixed into a whole and then installed on the fixing mechanism; A clamping assembly, mounted on the fixing mechanism, for axially fixing the sensor mounting bracket and the fixing bracket; The swing arm is used to connect the rotating arm and the rotating mechanism so that the rotating arm can rotate along with the rotating mechanism to perform angle measurement.

2. The angular displacement sensor mounting bracket according to claim 1, characterized in that: The sensor mounting bracket is cylindrical in shape as a whole, and is composed of a circular plate and an annular side plate extending downwardly around the periphery of the circular plate; The angular displacement sensor is assembled in the inner cavity of the sensor mounting bracket; The annular side plate is provided with an arc-shaped hole for extending the rotating arm.

3. The angular displacement sensor mounting bracket according to claim 2, characterized in that: The circular plate is provided with two indicator marks above the arc-shaped holes, and the two indicator marks are located between the arc-shaped holes; The minor arc area angle between the two indicator marks is greater than the upper limit of rotation of the rotating mechanism on the fixing mechanism.

4. The angular displacement sensor mounting bracket according to claim 2, characterized in that: An observation hole for viewing the angular displacement sensor mark is opened at the center of the circular plate.

5. The angular displacement sensor mounting bracket according to claim 2, characterized in that: At least one handle is fixed on the circular plate.

6. The angular displacement sensor mounting bracket according to claim 1, characterized in that: The clamping assembly is composed of a fixing bolt and a clamping plate; the clamping plate is a long straight plate with a bulge in the middle and through holes at both ends; When only one clamping plate is used, the clamping plate is arranged on the sensor mounting bracket, and a fixing bolt is inserted into each of the through holes on both sides of the clamping plate to fix the clamping plate on the fixing bracket; When at least two compression plates are used, two adjacent compression plates are installed alternately in front and back, and multiple compression plates are arranged into a preset shape and arranged on the sensor mounting bracket. A fixing bolt is inserted into the through holes on both sides to fix the compression plate to the fixing bracket.

7. The angular displacement sensor mounting bracket according to claim 1, characterized in that: The sensor mounting bracket is connected to the fixing bracket in a plug-in manner for circumferential fixation.

8. The angular displacement sensor mounting bracket according to claim 7, characterized in that: The fixing bracket is provided with a circle of evenly spaced mounting grooves, and the bottom of the sensor mounting bracket is provided with a plurality of evenly spaced fixing teeth. The shape of the mounting grooves matches the fixing teeth, so as to realize the installation of the sensor mounting bracket within a 360-degree range.

9. The angular displacement sensor mounting bracket according to claim 1, characterized in that: The fixing bracket is formed by bending a single plate and has an overall "X"-shaped structure; A maintenance port for installing, disassembling and repairing the angular displacement sensor is provided in the middle of the fixing bracket; The maintenance opening is evenly distributed with mounting grooves around a circle, and a plurality of clamping assembly mounting holes are arranged on the outer side of the maintenance opening.

10. An engineering machine, characterized in that: An angular displacement sensor mounting bracket according to any one of claims 1 to 9 is installed.

Images