Forklift, brake structure for forklift and working method of brake structure

Abstract

The invention belongs to the technical field of hoisting equipment, and particularly relates to equipment for hoisting and conveying containers, in particular to a forklift, a brake structure for the forklift and a working method of the brake structure. The brake structure for the forklift comprises a brake disc, a brake plate and a brake plate, two brake pads are oppositely arranged; a driving mechanism; one end of a detection rod of the detection assembly extends into the vent groove, close to the driving mechanism, of the brake pad; the detection assembly further comprises a detection part. By arranging the detection assembly, one end of the detection rod of the detection assembly directly extends into and is associated with the single brake pad close to the driving mechanism, so that the movement of the brake pad can directly and independently trigger the rotation of the detection rod during braking, and a detection target is converted into the abrasion loss of the specific single-side brake pad from the distance between two brake pads in the related technology; therefore, the thickness change of the brake pad on the side caused by abrasion can be accurately reflected, and the defect that the abrasion difference on the two sides cannot be distinguished in the prior art is overcome.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of hoisting equipment, and particularly relates to a device for lifting and conveying a container, and in particular to a forklift, a brake structure for the forklift, and a working method thereof. BACKGROUND

[0002] As an important industrial handling vehicle, the reliability and safety of the brake system of a forklift directly relate to the working performance of the whole machine and the safety of the operator. The brake structure, as a core component of the brake system, usually includes a brake disc and two brake pads arranged opposite to each other on both sides of the brake disc. During braking, a driving mechanism (such as a brake cylinder) pushes the two brake pads to clamp the brake disc, and braking is achieved through friction. In order to ensure braking efficiency, the wear condition of the brake pads needs to be checked regularly to avoid brake failure due to excessive wear.

[0003] In related technologies, the common wear detection method is to indirectly judge the overall wear of the brake pads by the extension distance of the brake cylinder. However, this method based on the detection of the distance between the two brake pads has obvious limitations. In actual use, due to the installation, load distribution or asymmetry of the mechanism itself, the wear rates of the two brake pads are often inconsistent. Monitoring the overall distance change between the two brake pads cannot accurately reflect the specific wear condition of any single brake pad. This may lead to the situation that when one side of the brake pad has been excessively worn or even has a safety hazard, the system fails to timely alarm due to the smaller wear of the other side.

[0004] Therefore, how to avoid the situation that the single brake pad cannot be timely alarmed for excessive wear when indirectly judging the overall wear of the two brake pads is a technical problem to be solved at present.

[0005] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background of the present application, and therefore, the above description is not considered to constitute prior art information. SUMMARY

[0006] The present application at least provides a forklift, a brake structure for the forklift, and a working method thereof.

[0007] In a first aspect, the present application provides a brake structure for a forklift, comprising: a brake disc arranged on a differential of the forklift; two brake pads arranged opposite to each other and arranged on both sides of the brake disc, respectively; a driving mechanism arranged on the differential of the forklift and configured to drive the two brake pads to abut against the brake disc; wherein one side of the two brake pads close to the brake disc is provided with an air passage groove; a detection component which detects one end of a detection rod inserted into a ventilation groove of the brake pad close to the driving mechanism; The detection component further comprises a detection part; The detection part is arranged on the shell of the driving mechanism; The middle part of the detection rod is rotatably arranged on the shell, and the other end of the detection rod abuts against the detection part; When the driving mechanism drives two brake pads to abut against the brake disc, the detection rod is driven to rotate, so that the other end of the detection rod presses the detection part to detect the thickness of the brake pad close to the driving mechanism; A control module is used to receive the wear signal sent by the detection part to control the alarm module to alarm.

[0008] In an optional embodiment, the detection part comprises: an air bag; a communication pipe in communication with the air bag; a flow detection sensor arranged on the communication pipe and used to detect the air flow in the communication pipe; The control module is electrically connected with the flow detection sensor.

[0009] In an optional embodiment, the detection part further comprises a support frame; The support frame is internally provided with a mounting groove; The air bag is arranged in the mounting groove; The middle part of the detection rod is rotatably connected to the support frame.

[0010] In an optional embodiment, one end of the communication pipe away from the air bag extends a blowing pipe; The air outlet of the blowing pipe is opposite to the ventilation groove.

[0011] In an optional embodiment, the number of blowing pipes is two; Both of the blowing pipes are in communication with the communication pipe.

[0012] In an optional embodiment, the driving mechanism comprises: a brake cylinder arranged on the shell; And the brake cylinder is used to drive one of the brake pads to abut against the brake disc to drive the other brake pad to abut against the brake disc.

[0013] In an optional embodiment, the shell is provided with a C-shaped slot for accommodating the brake disc; The brake oil cylinder is arranged at the side of the C-shaped groove, and a piston rod of the brake oil cylinder extends into the C-shaped groove. Two brake pads are arranged in the C-shaped groove respectively. Among the two brake pads, the brake pad close to the brake oil cylinder is connected with the piston rod of the brake oil cylinder, and the other brake pad is fixedly arranged in the C-shaped groove.

[0014] In a second aspect, the present disclosure also provides a forklift, comprising: a forklift body; a base arranged at the bottom of the forklift body; a front axle and a rear axle arranged at two ends of the base respectively; the forklift brake structure as described above is arranged on a differential of the base.

[0015] In a third aspect, the present disclosure also provides a working method applied to the forklift brake structure as described above, the working method comprising: a driving mechanism drives two brake pads to resist a brake disc; when the brake pad moves towards the brake disc, a detection rod is driven to rotate; when the detection rod rotates, a detection part is squeezed; after the detection part is squeezed, a wear signal is sent to a control module; the control module controls an alarm module to work according to the received wear signal.

[0016] In an optional implementation, the detection part comprises: an air bag; a communication pipe in communication with the air bag; a flow detection sensor arranged on the communication pipe and used for detecting air flow in the communication pipe; the control module is electrically connected with the flow detection sensor.

[0017] The forklift, the forklift brake structure and the working method thereof have the following beneficial effects: by arranging a detection assembly, one end of a detection rod of the detection assembly directly extends into and is associated with a single brake pad close to a driving mechanism, so that movement of the brake pad during braking can directly and independently trigger rotation of the detection rod, the detection target is changed from a distance between two brake pads in the related art to a wear amount of a specific single brake pad, so that thickness change of the brake pad due to wear can be accurately reflected, and the defect that wear difference between two sides cannot be distinguished in the related art is overcome.

[0018] Other features and advantages of the present application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The purposes and other advantages of the application will be realized and attained by the structure particularly pointed out in the description and appended claims.

[0019] In order to make the above objectives, features and advantages of the present application more apparent, a preferred embodiment is specifically described herein, and the accompanying drawings are referred to, and the detailed description is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 A structure schematic diagram of the forklift brake structure and differential provided by the embodiment of the present disclosure is shown in the figure. Figure 2 Another view structure schematic diagram of the forklift brake structure and differential provided by the embodiment of the present disclosure is shown in the figure. Figure 3 A structure schematic diagram of the forklift brake structure provided by the embodiment of the present disclosure is shown in the figure. Figure 4 A partial structure schematic diagram of the forklift brake structure provided by the embodiment of the present disclosure is shown in the figure. Figure 5 A partial structure schematic diagram of the forklift provided by the embodiment of the present disclosure is shown in the figure. Figure 6 A flow chart of the working method of the forklift brake structure provided by the embodiment of the present disclosure is shown in the figure. Figure 7 An electric control principle diagram of the forklift brake structure provided by the embodiment of the present disclosure is shown in the figure.

[0022] In the figure: 100, brake disc; 200, driving mechanism; 210, brake oil cylinder; 220, shell; 230, C-shaped groove; 300, brake pad; 310, air passage; 400, detection assembly; 410, detection rod; 420, detection part; 421, air bag; 422, communication pipe; 423, flow detection sensor; 424, support frame; 4241, mounting groove; 425, air blowing pipe; 500, differential; 600, base; 700, front axle. DETAILED DESCRIPTION

[0023] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0024] In this document, when a first component is referred to as being "on" a second component, it can be directly on the second component or a third component can be interposed between the first component and the second component. Also, in the drawings, the thickness of the components can be exaggerated or reduced for effective description of the technical content.

[0025] In this document, when an element or layer is referred to as being "on", "engaged to", "connected to", "attached to", or "coupled to" another element or layer, it can be directly on, engaged, connected, attached, or coupled to the other element or layer, or one or more intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on", "directly engaged to", "directly connected to", "directly attached to", or "directly coupled to" another element or layer, there are no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., "between" versus "directly between", "adjacent" versus "directly adjacent", etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0026] In this document, example embodiments of the present disclosure will be described in greater detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of", when preceded by the term comprising, are intended to cover the interrelated items that are encompassed by the alternative of the term comprising. For example, the expression "at least one of a, b, and c" is intended to mean a, b, or c individually, or any combination of a, b, and c. As used herein, expressions such as "at least one of" when followed by a list of elements are intended to cover the interrelated items that are encompassed by the alternative of the term comprising. For example, the expression "at least one of a, b, and c" is intended to mean a, b, or c individually, or any combination of a, b, and c. As used herein, the expression "comprising at least one of a, b, and c" is intended to mean a, b, or c individually, or any combination of a, b, and c.

[0027] The terminology used herein is for the purpose of describing particular example configurations only and is not intended to be limiting. As used herein, the singular articles "a", "an", and "the" can be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "including", "comprising", and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are discussed or illustrated, unless specifically identified as an order of performance. Additional or alternative steps can be employed.

[0028] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” and the like generally mean the particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of the present disclosure. Thus, features, structures, or characteristics in some embodiments can be included in more than one embodiment of the present disclosure, and the phrases, “in one embodiment,” “according to one embodiment,” “in some embodiments,” and the like are not necessarily referring to the same embodiment. As used herein, the terms “for example,” “e.g.,” and the like indicate that the named item is a non-exclusive example. Any embodiment, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” and the like is intended to present concepts in a concrete manner.

[0029] It is found through research that the method based on detecting the distance between the two brake pads has obvious limitations. In actual use, due to installation, load distribution or asymmetry that may exist in the mechanism itself, the wear rates of the two brake pads are often inconsistent. Monitoring the overall distance change between the two brake pads cannot accurately reflect the specific wear condition of any single brake pad. This may cause a certain side brake pad to be excessively worn or even have a safety hazard, but the system fails to timely alarm due to the smaller wear of the other side.

[0030] Based on the above research, the forklift, the brake structure for the forklift and the working method thereof provided by the embodiments of the present disclosure set a detection component, one end of the detection rod of which directly extends into and is associated with a single brake pad close to the driving mechanism. The movement of the brake pad during braking can directly and independently trigger the rotation of the detection rod. The detection target is changed from the distance between the two brake pads in the related art to the wear amount of the specific single-side brake pad. Therefore, the thickness change of the side brake pad caused by wear can be accurately reflected, and the defect that the wear difference between the two sides cannot be distinguished in the related art is overcome.

[0031] The defects of the above solutions are the results obtained by the inventors after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure to the above problems in this paper should be the contributions made by the inventors to the present disclosure in the process of the present disclosure.

[0032] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] Some embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the embodiments described below and the features in the embodiments can be combined with each other.

[0034] Please refer to Figure 1 and Figure 2At least one embodiment provides a brake structure for a forklift, comprising: a brake disc 100 arranged on a differential 500 of the forklift; two brake pads 300 arranged oppositely and respectively on two sides of the brake disc 100; a driving mechanism 200 arranged on the differential 500 of the forklift and used to drive the two brake pads 300 to abut against the brake disc 100; wherein the two brake pads 300 are provided with air passages 310 near one side of the brake disc 100; a detection assembly 400, one end of a detection rod 410 of which extends into the air passage 310 of the brake pad 300 near the driving mechanism 200; the detection assembly 400 further comprises a detection part 420; the detection part 420 is arranged on an outer shell 220 of the driving mechanism 200; a middle part of the detection rod 410 is rotationally arranged on the outer shell 220, and the other end of the detection rod 410 abuts against the detection part 420; when the driving mechanism 200 drives the two brake pads 300 to abut against the brake disc 100, the detection rod 410 is driven to rotate, so that the other end of the detection rod 410 extrudes the detection part 420, to detect the thickness of the brake pad 300 near the driving mechanism 200.

[0035] By arranging the detection assembly 400, one end of the detection rod 410 of which directly extends into and is associated with the single brake pad 300 near the driving mechanism 200, so that the movement of the brake pad 300 during braking can directly and independently trigger the rotation of the detection rod 410, and the detection target is changed from the distance between the two brake pads 300 in the related art to the wear amount of the specific single-side brake pad 300, so that the thickness change of the brake pad 300 on this side due to wear can be accurately reflected, and the defect that the wear difference between the two sides cannot be distinguished in the related art is overcome.

[0036] Please refer to Figure 7 a control module used to receive the wear signal sent by the detection part 420 and control the alarm module to alarm.

[0037] When the wear signal received by the control module reaches a preset value, the control alarm module alarms to prompt the maintenance personnel to replace the brake pad 300.

[0038] Please refer to Figure 3 and Figure 4 the detection part 420 comprises: an air bag 421; a communication pipe 422 in communication with the air bag 421; a flow detection sensor 423 arranged on the communication pipe 422 and used to detect the airflow in the communication pipe 422; and the control module is electrically connected with the flow detection sensor 423.

[0039] When the air bag 421 is squeezed, the exhaust air flow is directly blown to the air passage 310 on the brake pad 300 through the blowing pipe 425, and the exhaust or suction gas flow is accurately measured through the flow detection sensor 423. This pneumatic detection method has strong anti-interference ability and is not affected by oil stains, dust and other harsh working environments, and the detection result is stable and reliable, so as to convert the thickness wear of the brake pad 300 into an electric signal that can be accurately quantified.

[0040] Please continue to refer to Figure 3 and Figure 4 , the detection part 420 further comprises a support frame 424; the support frame 424 is provided with a mounting groove 4241; the air bag 421 is arranged in the mounting groove 4241; and the middle part of the detection rod 410 is rotationally connected to the support frame 424.

[0041] The support frame 424 provides a stable mounting basis for the rotation fulcrum of the air bag 421 and the detection rod 410, ensures that the detection rod 410 always maintains the correct relative position and movement track in long-term and high-frequency braking actions, prevents detection errors or failures caused by component loosening or displacement, and improves the durability and precision of the entire detection system.

[0042] Please continue to refer to Figure 3 and Figure 4 , the communication pipe 422 extends the blowing pipe 425 away from one end of the air bag 421; and the air outlet of the blowing pipe 425 is opposite to the air passage 310.

[0043] The blowing pipe 425 blows gas to the air passage 310, which is used to blow away brake dust and debris accumulated in the air passage 310, helps to keep the heat dissipation channel of the brake pad 300 unobstructed, and indirectly improves the braking efficiency and service life of the brake pad 300.

[0044] Specifically, the number of blowing pipes 425 is two; and the two blowing pipes 425 are in communication with the communication pipe 422. By arranging two blowing pipes 425, the air passage 310 of the brake pad 300 can be more comprehensively and uniformly swept, and the accompanying cleaning function is further optimized.

[0045] Please refer to Figure 2 and Figure 3 , the driving mechanism 200 comprises a brake cylinder 210 arranged on the housing 220; and the brake cylinder 210 is used to drive one of the brake pads 300 to abut against the brake disc 100, so as to drive the other brake pad 300 to abut against the brake disc 100.

[0046] Please continue to refer to Figure 1 and Figure 2The shell 220 is provided with a C-shaped groove 230 for accommodating the brake disc 100; the brake oil cylinder 210 is arranged at the side of the C-shaped groove 230, and the piston rod of the brake oil cylinder 210 extends into the C-shaped groove 230; two brake pads 300 are arranged in the C-shaped groove 230 respectively; and of the two brake pads 300, the brake pad 300 close to the brake oil cylinder 210 is connected with the piston rod of the brake oil cylinder 210, and the other brake pad 300 is fixedly arranged in the C-shaped groove 230.

[0047] The design of the C-shaped groove 230 enables the brake disc 100 to be semi-enclosed, the structure is compact, and the installation is convenient. At the same time, the arrangement mode of the movable brake pad 300 and the fixed brake pad 300 is clear, so that the detection assembly 400 only needs to monitor the brake pad 300 subjected to active pressure to accurately reflect the wear condition, and the detection logic is simplified.

[0048] Please refer to Figure 5 The fork truck provided by the embodiment of the disclosure also includes a fork truck body, a base 600 arranged at the bottom of the fork truck body, front and rear axles 700 and 800 respectively arranged at two ends of the base 600, and the brake structure for fork truck as described above arranged on the differential 500 of the base 600.

[0049] In a third aspect, the embodiment of the disclosure also provides a working method applied to the brake structure for fork truck as described above. By arranging the detection assembly 400, one end of the detection rod 410 of the detection assembly 400 directly extends into and is associated with the single brake pad 300 close to the driving mechanism 200, so that the movement of the brake pad 300 during braking can directly and independently trigger the rotation of the detection rod 410, the detection target is changed from the distance between the two brake pads 300 in the related art to the wear amount of the specific single brake pad 300, so that the thickness change of the brake pad 300 caused by wear can be accurately reflected, and the defect that the wear difference between the two sides cannot be distinguished in the related art is overcome.

[0050] Specifically, the working method includes the following steps. S110: The driving mechanism 200 drives the two brake pads 300 to resist the brake disc 100; S120: When the brake pad 300 moves towards the brake disc 100, the detection rod 410 is driven to rotate; S130: When the detection rod 410 rotates, the detection part 420 is squeezed; S140: After the detection part 420 is squeezed, a wear signal is sent to the control module; S150: The control module controls the alarm module to work according to the received wear signal.

[0051] In summary, the application provides a fork truck, a brake structure for the fork truck and a working method thereof, wherein the brake structure for the fork truck comprises: a brake disc 100 arranged on a differential 500 of the fork truck; two brake pads 300 arranged oppositely and respectively on two sides of the brake disc 100; a driving mechanism 200 arranged on the differential 500 of the fork truck and used for driving the two brake pads 300 to abut against the brake disc 100; wherein one side of the two brake pads 300 close to the brake disc 100 is provided with a ventilation groove 310; a detection assembly 400, one end of a detection rod 410 of which extends into the ventilation groove 310 of the brake pad 300 close to the driving mechanism 200; the detection assembly 400 further comprises a detection part 420; the detection part 420 is arranged on an outer shell 220 of the driving mechanism 200; a middle part of the detection rod 410 is rotationally arranged on the outer shell 220, and the other end of the detection rod 410 abuts against the detection part 420; when the driving mechanism 200 drives the two brake pads 300 to abut against the brake disc 100, the detection rod 410 is driven to rotate, so that the other end of the detection rod 410 extrudes the detection part 420, so as to detect the thickness of the brake pad 300 close to the driving mechanism 200; a control module is used for receiving a wear signal sent by the detection part 420 to control an alarm module to alarm. By arranging the detection assembly 400, one end of the detection rod 410 of which directly extends into and is associated with a single brake pad 300 close to the driving mechanism 200, so that the movement of the brake pad 300 during braking can directly and independently trigger the rotation of the detection rod 410, the detection target is changed from the distance between the two brake pads 300 in the related art to the wear amount of the specific single brake pad 300, so that the thickness change of the brake pad 300 on the side due to wear can be accurately reflected, and the defect that the wear difference between the two sides cannot be distinguished in the related art is overcome.

[0052] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or integral connection; can be mechanical connection, can be electrical connection; can be direct connection, can be indirect connection through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0053] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are intended to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, terms such as "first", "second" and other numerical terms are used herein and do not imply order or sequence unless expressly indicated herein. Therefore, the first element, component, region, layer or section discussed above can be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0054] Spatially relative terms, such as "inner", "outer", "below", "below", "lower", "above", "upper", and the like, can be used herein to facilitate the description of the relationship of one element or feature to another element or feature as illustrated in the drawings. In addition to the orientation depicted in the drawings, the spatially relative terms can be intended to cover different orientations of the device in use or operation. For example, if the device in the drawing is turned over, the element described as "below" or "under" the other element or feature will be oriented "above" the other element or feature. Therefore, the example term "below" can cover both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0055] In the above discussion, unless otherwise stated, the terms "about", "approximately", "substantially" and the like, when used in describing a numerical value, mean a variation of + / - 10% of the value.

[0056] With the above ideal embodiments according to the present application as the inspiration, through the above description, relevant personnel can certainly make various changes and modifications within the scope of not deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of claims.

Claims

1. A forklift truck brake structure characterized by comprising: The brake structure comprises a brake disc (100) arranged on a differential (500) of a forklift truck, two brake pads (300) arranged on two sides of the brake disc (100) respectively, and a driving mechanism (200) arranged on the differential (500) of the forklift truck and used for driving the two brake pads (300) to abut against the brake disc (100). An air passage (310) is arranged on one side of each brake pad (300) close to the brake disc (100). A detection assembly (400) is arranged on the driving mechanism (200), and one end of a detection rod (410) of the detection assembly (400) is arranged in the air passage (310) of the brake pad (300) close to the driving mechanism (200). The detection assembly (400) further comprises a detection part (420). The detection part (420) is arranged on an outer shell (220) of the driving mechanism (200). A middle part of the detection rod (410) is rotatably arranged on the outer shell (220), and the other end of the detection rod (410) abuts against the detection part (420). When the driving mechanism (200) drives the two brake pads (300) to abut against the brake disc (100), the driving mechanism (200) drives the detection rod (410) to rotate, so that the other end of the detection rod (410) presses the detection part (420), thereby detecting the thickness of the brake pad (300) close to the driving mechanism (200). A control module is arranged for receiving a wear signal sent by the detection part (420) and controlling an alarm module to alarm.

2. The brake structure of the forklift truck according to claim 1, wherein the detection part (420) comprises an air bag (421), a communication pipe (422) in communication with the air bag (421), and a flow detection sensor (423) arranged on the communication pipe (422) and used for detecting air flow in the communication pipe (422).

3. The brake structure of the forklift truck according to claim 2, wherein the detection part (420) further comprises a support frame (424), and the support frame (424) is internally provided with a mounting groove (4241).

4. The brake structure of the forklift truck according to claim 3, wherein one end of the communication pipe (422) away from the air bag (421) is provided with a blowing pipe (425), and an air outlet of the blowing pipe (425) is opposite to the air passage (310).

5. The brake structure of the forklift truck according to claim 4, wherein the blowing pipe (425) is provided with two blowing pipes (425).

6. The brake structure of the forklift truck according to claim 1, wherein the driving mechanism (200) comprises a brake oil cylinder (210) arranged on the outer shell (220). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ And, the brake oil cylinder (210) is used to drive one of the brake pads (300) to abut against the brake disc (100) to drive the other brake pad (300) to abut against the brake disc (100).

7. The forklift brake structure according to claim 6, characterized in that, The housing (220) is provided with a C-shaped groove (230) for accommodating the brake disc (100); The brake oil cylinder (210) is arranged at the side of the C-shaped groove (230), and the piston rod of the brake oil cylinder (210) extends into the C-shaped groove (230); Two brake pads (300) are arranged in the C-shaped groove (230) respectively; And, among the two brake pads (300), the brake pad (300) close to the brake oil cylinder (210) is connected with the piston rod of the brake oil cylinder (210), and the other brake pad (300) is fixedly arranged in the C-shaped groove (230).

8. A fork lift truck characterised in that, Comprise: A forklift body; A base (600) arranged at the bottom of the forklift body; A front axle (700) and a rear axle arranged at two ends of the base (600) respectively; The forklift brake structure according to any one of claims 1-7 is arranged on the differential (500) of the base (600).

9. A method of operating the brake structure for a fork lift truck as claimed in any one of claims 1, 3 to 7, characterised in that, The working method comprises: The driving mechanism (200) drives two brake pads (300) to abut against the brake disc (100); When the brake pad (300) moves towards the brake disc (100), the detection rod (410) rotates; When the detection rod (410) rotates, the detection part (420) is extruded; After the detection part (420) is extruded, a wear signal is sent to the control module; The control module controls the alarm module to work according to the received wear signal.

10. The working method of the forklift brake structure according to claim 9, characterized in that, The detection part (420) comprises: An air bag (421); A communication pipe (422) in communication with the air bag (421); A flow detection sensor (423) arranged on the communication pipe (422) and used to detect the airflow in the communication pipe (422); The control module is electrically connected with the flow detection sensor (423).

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