Double-shield guiding system based on multi-mode double-path laser attitude measuring device

Abstract

The invention relates to the field of measuring devices, in particular to a double-shield guiding system based on a multimode double-path laser attitude measuring device, which comprises a front shield and a supporting shield, the front shield is provided with laser attitude measuring equipment, the inner side of the supporting shield is provided with a laser transmitter, and a dustproof sleeve body is connected between the laser attitude measuring equipment and the laser transmitter. The laser attitude measurement equipment is mounted on the front shield, the laser transmitter is mounted on the rear shield equipment, and the dustproof sleeve body through which laser can penetrate is erected between the laser attitude measurement equipment and the rear shield equipment, so that the interference of dust on the laser can be greatly reduced by the dustproof sleeve body; when the laser attitude measurement device works, the dustproof sleeve body shifts due to vibration of one end of the dustproof sleeve body, so that laser cannot normally penetrate through the dustproof sleeve body and cannot reach a laser target of the laser attitude measurement device at the other end of the dustproof sleeve body, and meanwhile, an industrial sensor cannot detect deviation of a laser point position.

Description

Technical Field

[0001] The present invention relates to the field of measuring devices, and in particular to a double-shield guiding system based on a multi-mode dual-path laser attitude measuring device. Background Art

[0002] When the shield machine is working, the front blade of the shield needs to crush the rock, while the rear support shield supports the rear tunnel. The front blade of the shield machine may deviate from the original straight track of the tunnel due to rock or vibration, and a slight deviation may lead to construction errors and tunnel collapse.

[0003] The existing solution is to calibrate the equipment through a laser emitter and a laser target. When the laser emitted by the laser emitter deviates from the center of the laser target, the shield machine's automatic correction is turned on to correct the shield machine back to a straight track. However, the existing shield machine will have huge vibrations when turned on, accompanied by a large amount of dust, and the dust and vibration will affect the laser's irradiation of the laser target. In particular, after the vibration, the laser will have a large offset between the laser target and the laser target, resulting in miscorrection.

[0004] To this end, those skilled in the art have designed a dual-shield guidance system based on a multi-mode dual-path laser attitude measurement device to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a dual-shield guide system based on a multi-mode dual-path laser attitude measurement device, which can be adapted to the welding of meshes with different spacings.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: it includes a front shield and a support shield, the front shield is equipped with a laser attitude measurement device, a laser emitter is installed on the inside of the support shield, a dustproof cover is connected between the laser attitude measurement device and the laser emitter, and the laser of the laser emitter passes through the center of the dustproof cover and irradiates the laser target on the surface of the laser attitude measurement device.

[0007] Preferably, the dustproof sleeve includes a laser absorption layer and a spring 1, the diameter between the laser absorption layer and the spring 1 is smaller than the diameters at both ends, the laser absorption layer is a stretchable material, and the spring 1 is inserted into the laser absorption layer.

[0008] Preferably, the laser absorption layer includes a laser absorption layer, a transparent layer and a cooling liquid, the laser absorption layer is located at the outermost layer, the transparent layer is located at the inner layer, and the cooling liquid is located between the laser absorption layer and the transparent layer.

[0009] Preferably, a shock absorbing element is provided between the dustproof sleeve and the front shield, and between the laser emitter and the support shield.

[0010] Preferably, the shock absorbing element includes a buffer base connected to the front shield and the support shield, a buffer foot pad is provided on the edge of the buffer base, and a second spring is connected to the inner bottom of the buffer base.

[0011] Preferably, when the front shield moves forward, the leather cover layer and the spring are stretched laterally, and the aperture at the midpoint of the leather cover layer gradually decreases.

[0012] Preferably, an industrial camera is provided inside the laser attitude measurement device, and the shooting end of the industrial camera faces the laser target.

[0013] The beneficial effects of the present invention are as follows: the laser attitude measurement device is installed on the front shield, the laser transmitter is installed on the rear shield device, and a dustproof cover body is set up between the two, which is only for the laser to pass through. The dustproof cover body can greatly reduce the interference of dust on the laser. At the same time, when the front shield or the rear shield vibrates, the dustproof cover body will be offset due to the vibration of one end, resulting in the laser being unable to pass through the dustproof cover body normally and unable to reach the laser target of the laser attitude measurement device at the other end. At the same time, the industrial sensor cannot detect the offset of the laser point, avoiding the misdiagnosis of the front shield offset and the occurrence of self-guided repair. By protecting the receiving end and the transmitting end of the intelligent sensor, the received signal in the vibrating state can also be automatically shielded to avoid the large laser offset amplitude after the vibration is generated, which leads to equipment misjudgment, thereby greatly improving the monitoring accuracy of the intelligent sensor equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0015] Figure 1 It is a side view schematic diagram of the present invention.

[0016] Figure 2 It is a schematic structural diagram of the dustproof sleeve of the present invention.

[0017] Figure 3 Schematic diagram of the shock absorbing element of the present invention.

[0018] Figure 4 It is a bottom view schematic diagram of the shock absorbing element of the present invention.

[0019] Figure 5 It is a structural schematic diagram of a spring of the present invention. In the picture: 1. Front shield; 2. Support shield; 3. Laser attitude measurement device; 4. Laser emitter; 5. Dustproof cover; 501. Leather cover layer; 5011. Laser absorption layer; 5012. Transparent layer; 5013. Coolant; 502. Spring 1; 6. Shock absorber; 601. Buffer base; 602. Buffer foot pad; 603. Spring 2. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0021] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0022] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] In the description of the present invention, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term 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; it can be internal communication between two components or an interaction between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0024] Example 1: The present invention provides a dual shield guidance system based on a multi-mode dual-path laser attitude measurement device, such as Figure 1-5 As shown, it includes a front shield 1 and a support shield 2. The front shield 1 is equipped with a laser attitude measurement device 3. A laser emitter 4 is installed inside the support shield 2. A dustproof cover 5 is connected between the laser attitude measurement device 3 and the laser emitter 4. The laser of the laser emitter 4 passes through the center of the dustproof cover 5 and irradiates the laser target on the surface of the laser attitude measurement device 3. The dustproof sleeve 5 includes a laser absorption layer 501 and a spring 502. The diameter between the laser absorption layer 501 and the spring 502 is smaller than the diameter at both ends. The laser absorption layer 501 is a stretchable material, and the spring 502 is inserted into the laser absorption layer 501. When the distance between the laser attitude measurement device 3 and the laser emitter 4 gradually increases, the dustproof sleeve 5 is stretched laterally, causing the aperture at the midpoint of the dustproof sleeve 5 to continue to shrink. However, at this time, the light can still pass through the aperture to the other end. However, when vibration occurs at one end, one end of the dustproof sleeve 5 will deviate up and down due to the vibration, and eventually the laser cannot be irradiated to the other end, thereby eliminating the problem of inaccurate laser offset monitoring due to equipment vibration.

[0025] The laser absorption layer 501 includes a laser absorption layer 5011, a transparent layer 5012 and a coolant 5013. The laser absorption layer 5011 is located in the outermost layer, the transparent layer 5012 is located in the inner layer, and the coolant 5013 is located between the laser absorption layer 5011 and the transparent layer 5012. The laser absorption layer 5011 absorbs the laser and its own temperature continues to rise. The laser absorption layer 5011 can be cooled in the form of the coolant. The transparent layer 5012 is located in the innermost layer. The laser can pass through and refract at the coolant 5013, irradiating the inner surface of the laser absorption layer 5011.

[0026] A shock-absorbing element 6 is provided between the dust-proof cover 5 and the front shield 1, and between the laser emitter 4 and the support shield 2. The shock-absorbing element 6 can alleviate the impact of the vibration of the front shield 1 and the support shield 2 on the laser attitude measurement device 3 and the laser emitter 4, thereby reducing the up and down vibration of the laser attitude measurement device 3 and the laser emitter 4.

[0027] The shock absorbing element 6 includes a buffer base 601 connected to the front shield 1 and the support shield 2. A buffer pad 602 is provided on the edge of the buffer base 601. The buffer pad 602 adopts a foldable structure. A spring 2 603 is connected to the bottom of the inner side of the buffer base 601. The buffer pad 602 can compress the spring 2 603 by folding inward and offset the lateral vibration. At the same time, the buffer pad 602 can also offset the vibration in the vertical direction. When the front shield 1 moves forward, the leather cover layer 501 and the spring 1 502 are stretched laterally, and the aperture at the midpoint of the leather cover layer 501 gradually decreases. By reducing the aperture, the range of laser movement is limited. When the front shield 1 moves forward, the drill bit is in a drilling state and is prone to vibration. At this time, after the aperture is continuously reduced, the small vibrations that occur cause the dust cover body 5 to tilt, which will prevent the laser from irradiating the other end and automatically ignore the laser deviation caused by the vibration, thereby avoiding inaccurate monitoring and erroneous correction. An industrial camera is provided inside the laser attitude measurement device 3, and the shooting end of the industrial camera is facing the laser target. The laser emitter 4 emits laser light onto the laser target of the laser attitude measurement device 3, and the industrial camera is used to take a picture of the laser light irradiated onto the laser target. When the irradiation point of the laser is at the non-center position of the laser target, there is an offset, otherwise there is no offset. During use, when the front shield moves forward, the laser is in an irradiation state, and the distance between the laser attitude measurement device 3 and the laser emitter 4 gradually becomes farther. At this time, the dust cover 5 between the two will be pulled synchronously. Under the influence of the spring 1 502 and the leather cover layer 501, the aperture in the middle will gradually become smaller. When a large degree of vibration or shaking occurs between the front shield 1 and the support shield 2, the laser attitude measurement device 3 and the laser emitter 4 deviate from the original two-point connection line, and cause the original dust cover 5 to tilt, offset from the irradiation direction of the light, and ultimately fail to reach the laser target of the laser attitude measurement device 3. When the vibration disappears and the front shield 1 quickly resets, the laser can irradiate the laser target again, thereby eliminating the problem of laser irradiation offset caused by single-direction vibration. It should be noted that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that various modifications, equivalent substitutions, and variations may be made to the present invention. However, as long as these modifications do not depart from the spirit of the present invention, they are intended to be within the scope of protection of the present invention. Furthermore, certain terms used in the specification and claims of this application are not intended to be limiting and are provided solely for ease of description.

Claims

1. A dual-shield guidance system based on a multi-mode dual-path laser attitude measurement device, characterized in that: The invention comprises a front shield (1) and a support shield (2), wherein the front shield (1) is equipped with a laser attitude measuring device (3), a laser emitter (4) is installed on the inner side of the support shield (2), a dustproof cover (5) is connected between the laser attitude measuring device (3) and the laser emitter (4), and the laser of the laser emitter (4) passes through the center of the dustproof cover (5) and irradiates the laser target on the surface of the laser attitude measuring device (3).

2. The dual-shield guidance system based on the multi-mode dual-path laser attitude measurement device according to claim 1 is characterized in that: The dustproof sleeve (5) comprises a laser absorption layer (501) and a spring (502), wherein the diameter between the laser absorption layer (501) and the spring (502) is smaller than the diameters at both ends, the laser absorption layer (501) is made of a stretchable material, and the spring (502) is inserted into the laser absorption layer (501).

3. The dual-shield guidance system based on the multi-mode dual-path laser attitude measurement device according to claim 2 is characterized in that: The laser absorption layer (501) comprises a laser absorption layer (5011), a transparent layer (5012) and a cooling liquid (5013), wherein the laser absorption layer (5011) is located at the outermost layer, the transparent layer (5012) is located at the inner layer, and the cooling liquid (5013) is located between the laser absorption layer (5011) and the transparent layer (5012).

4. The dual-shield guidance system based on the multi-mode dual-path laser attitude measurement device according to claim 1 is characterized in that: A shock absorbing element (6) is provided between the dustproof sleeve (5) and the front shield (1), and between the laser emitter (4) and the support shield (2).

5. The dual-shield guidance system based on the multi-mode dual-path laser attitude measurement device according to claim 2 is characterized in that: The shock absorbing element (6) includes a buffer base (601) connected to the front shield (1) and the support shield (2), a buffer foot pad (602) is provided on the edge of the buffer base (601), and a spring 2 (603) is connected to the inner bottom of the buffer base (601).

6. The dual-shield guidance system based on the multi-mode dual-path laser attitude measurement device according to claim 1 is characterized in that: When the front shield (1) moves forward, the leather cover layer (501) and the spring 1 (502) are stretched laterally, and the aperture at the midpoint of the leather cover layer (501) gradually decreases.

7. The dual-shield guidance system based on the multi-mode dual-path laser attitude measurement device according to claim 1 is characterized in that: An industrial camera is provided inside the laser attitude measurement device (3), and the shooting end of the industrial camera faces the laser target.

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