Hydraulic clutch device and transport sorting trolley with the device

Abstract

The present disclosure provides a hydraulic clutch device and a transport and sorting trolley with the device. The hydraulic clutch device includes a trigger rod, a mounting seat, a friction member and a first elastic member. The trigger rod is arranged in the shaft cavity of the wheel axle and has a first end and a second end, the first end extends out of the wheel axle, and the second end extends into the shaft cavity. The mounting seat has a bottom plate arranged on the outer wall of the wheel axle and a side plate connected to the bottom plate, and the bottom plate, the side plate and the outer wall of the wheel axle jointly define a mounting groove with a notch facing the end of the wheel axle. The friction member can be slidably arranged on the outer wall of the wheel axle along the axial direction and has a mounting structure and a friction structure, the mounting structure is inserted into the mounting groove and there is a first gap between the mounting groove and the bottom of the mounting groove, and the friction structure corresponds to the roller and there is a second gap between the roller. The first elastic member is connected between the friction member and the end of the wheel axle. Among them, the wheel axle is provided with a guide hole connecting the shaft cavity and the first gap, and the second end, the first gap, the inner wall of the shaft cavity and the bottom of the cavity jointly define an oil storage space filled with hydraulic oil.

Description

Technical Field

[0001] The present disclosure relates to the technical field of logistics transportation and sorting equipment, and in particular to a hydraulic clutch device and a transportation and sorting trolley with the device. Background Art

[0002] The sorting trolley in the prior art is an upper and lower structure, that is, the upper part is usually a conveyor belt structure, and the lower part is usually a support and transmission structure. The sorting trolley can work normally when it runs on the upper layer, but when it runs to the lower layer, the sorting trolley is upside down. Due to the structural design of the sorting trolley, it can only work normally when the sorting trolley is on the upper layer of the sorting machine, and it cannot be used on the lower layer. Therefore, when the sorting trolley runs for one cycle, only half of the stroke can work normally, and the utilization rate is low. In addition, due to its different functional requirements, the sorting trolley needs to provide a braking function for the roller of the conveyor belt structure. However, the existing design usually does not have a braking function for the roller. Some existing sorting trolleys use electrical mechanisms to control the working state of the roller to provide a braking function, but require a large number of power supply, communication and control devices, with complex structure, complicated principles and high cost. Summary of the invention

[0003] A main purpose of the present disclosure is to overcome at least one of the above-mentioned defects of the prior art and provide a hydraulic clutch device that realizes the function of drum braking through a mechanical structure.

[0004] Another main purpose of the present disclosure is to overcome at least one defect of the above-mentioned prior art and provide a transport and sorting trolley with the above-mentioned hydraulic clutch device.

[0005] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0006] According to one aspect of the present disclosure, a hydraulic clutch device is provided, which is installed on a transport trolley. The transport trolley includes a main beam, rollers arranged at both ends of the main beam, a conveyor belt wound around the rollers, and a wheel axle arranged on one side of the main beam. The hydraulic clutch device includes a trigger rod, a mounting seat, a friction member, and a first elastic member. The trigger rod is inserted into the shaft cavity of the wheel axle and has a first end and a second end, the first end extends out of the wheel axle, and the second end extends into the shaft cavity. The mounting seat has a bottom plate arranged on the outer wall of the wheel axle and a side plate connected to the bottom plate, and the bottom plate, the side plate and the outer wall of the wheel axle jointly define a mounting groove with a notch facing the end of the wheel axle. The friction member can be slidably arranged on the outer wall of the wheel axle along the axial direction and has a mounting structure and a friction structure, the mounting structure is inserted into the mounting groove and has a first gap with the groove bottom of the mounting groove, and the friction structure corresponds to the roller and has a second gap with the roller. The first elastic member is connected between the friction member and the end of the wheel axle. The wheel axle is provided with a guide hole connecting the shaft cavity and the first gap, and the second end, the first gap, the inner wall of the shaft cavity and the bottom of the cavity together define an oil storage space filled with hydraulic oil. When the trigger rod is pressed and moves toward the bottom of the shaft cavity, the hydraulic oil flows to the first gap, causing the friction member to move away from the mounting groove and press against the roller to achieve friction braking.

[0007] According to one embodiment of the present disclosure, a ball is disposed at the first end of the trigger rod.

[0008] According to one embodiment of the present disclosure, the trigger rod has a neck adjacent to the first end, the cavity wall of the shaft cavity is provided with a first positioning structure, and the outer wall of the neck is provided with a second positioning structure, and the first positioning structure cooperates with the second positioning structure to limit the neck to be located in the shaft cavity.

[0009] According to one embodiment of the present disclosure, the friction member is a friction wheel, the axis of the friction wheel is provided with a through hole for the wheel axle to pass through, the friction member has a first portion and a second portion in the axial direction, the first portion is closer to the first end of the trigger rod than the second portion, the first portion defines the friction structure, and the second portion defines the mounting structure.

[0010] According to one embodiment of the present disclosure, the first portion of the friction wheel is a frustum structure, and the annular conical surface of the frustum structure defines the friction structure. When the friction wheel moves away from the mounting groove, the annular conical surface is pressed against the roller to achieve friction braking.

[0011] According to one embodiment of the present disclosure, the annular conical surface has friction texture.

[0012] According to one embodiment of the present disclosure, the friction texture includes at least one of a gear-shaped texture, a sawtooth-shaped texture, a grid-shaped texture, and a wavy line texture.

[0013] According to one embodiment of the present disclosure, the bottom plate of the mounting seat is an annular structure surrounding the outer wall of the wheel shaft, so that the mounting groove is an annular groove structure. The second part of the friction wheel is a tubular structure, and the second part is inserted into the mounting groove and the first gap exists between the second part and the bottom of the mounting groove.

[0014] According to one embodiment of the present disclosure, the friction wheel is made of rubber.

[0015] According to one embodiment of the present disclosure, a protrusion is provided on the hole wall of the through hole of the friction wheel, a sliding groove is provided on the outer wall of the wheel axle, and the protrusion is slidably matched with the sliding groove, so that the friction wheel can be axially slidably arranged on the outer wall of the wheel axle.

[0016] According to one embodiment of the present disclosure, the width of the first gap in the axial direction is 0.5 mm to 1.5 mm.

[0017] According to one embodiment of the present disclosure, the first elastic member is a first spring, which is connected between the friction member and the end of the wheel axle and is wound around the outer circumference of the wheel axle.

[0018] According to one embodiment of the present disclosure, the hydraulic clutch device further comprises a one-way throttle valve. The one-way throttle valve is disposed in the shaft cavity of the wheel axle and is located between the second end of the trigger rod and the guide hole of the wheel axle. The one-way throttle valve is configured to throttle in one direction from the guide hole to the second end.

[0019] According to one embodiment of the present disclosure, the hydraulic clutch device includes a buffer block. The buffer block is disposed in the shaft cavity of the wheel axle and has a third end and a fourth end, the third end faces the trigger rod, and the fourth end is connected to the bottom of the shaft cavity through a second elastic member. The second end of the trigger rod, the first gap, the inner wall of the shaft cavity and the third end together define the oil storage space.

[0020] According to one embodiment of the present disclosure, the second elastic member is a second spring, and the second spring is connected between the fourth end of the buffer block and the bottom of the shaft cavity.

[0021] According to another aspect of the present disclosure, a transport sorting trolley is provided, comprising a plurality of transport units connected in sequence along a first horizontal direction, each of the transport units comprising a main beam, rollers arranged at both ends of the main beam, a conveyor belt wound around the rollers, and an axle arranged at one side of the main beam. Each of the transport units further comprises a hydraulic clutch device proposed in the present disclosure and described in the above embodiment.

[0022] According to one of the embodiments of the present disclosure, shaft cavities are respectively opened at both ends of the wheel axle, and each of the transport units includes two hydraulic clutch devices, which are respectively arranged at the two ends of the wheel axle; wherein the two trigger rods of the two hydraulic clutch devices are respectively configured to brake the two rollers.

[0023] It can be seen from the above technical solutions that the advantages and positive effects of the hydraulic clutch device and the transport and sorting trolley with the device proposed in the present disclosure are:

[0024] The hydraulic clutch device proposed in the present disclosure has a trigger rod that passes through the wheel axle, and the friction member can be axially slidably arranged on the wheel axle and has a mounting structure and a friction structure. The mounting structure is inserted into the mounting groove and there is a first gap between the mounting structure and the bottom of the mounting groove, and the friction structure corresponds to the roller. The first elastic member is connected between the friction member and the end of the wheel axle. The wheel axle is provided with a guide hole that connects the shaft cavity and the first gap. The second end, the first gap, the inner wall of the shaft cavity and the bottom of the cavity together define an oil storage space filled with hydraulic oil. Through the above design, when the trigger rod is pressurized and moves toward the bottom of the shaft cavity, the hydraulic oil flows to the first gap, causing the friction member to frictionally brake the roller. Accordingly, the present disclosure adopts a mechanical structure to realize the braking function of the roller. Since no electrical braking mechanism is adopted, a large number of power supply, communication and control components are not required, and the structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Various objects, features and advantages of the present disclosure will become more apparent by considering the following detailed description of preferred embodiments of the present disclosure in conjunction with the accompanying drawings. The accompanying drawings are merely exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always refer to the same or similar parts. Among them:

[0026] Figure 1 is an exploded schematic diagram showing a hydraulic clutch device installed on a transport sorting trolley according to an exemplary embodiment;

[0027] Figure 2 yes Figure 1 A partial cross-sectional view of the hydraulic clutch device when installed on a transport and sorting trolley;

[0028] Figure 3 yes Figure 1A schematic diagram showing a working state of the hydraulic clutch device when it is installed on a transport and sorting trolley;

[0029] Figure 4 yes Figure 1 A schematic diagram showing another working state of the hydraulic clutch device when it is installed on the transport and sorting trolley;

[0030] Figure 5 yes Figure 1 A schematic diagram showing another working state of the hydraulic clutch device when it is installed on the transport and sorting trolley;

[0031] Figure 6 is a schematic structural diagram of a transport unit of a transport sorting vehicle according to an exemplary embodiment;

[0032] Figure 7 yes Figure 6 A top view of a transport unit of a transport sorting trolley is shown.

[0033] The following are the descriptions of the reference numerals:

[0034] 100. Transport unit;

[0035] 110. Main beam;

[0036] 120. Roller;

[0037] 130. Conveyor belt;

[0038] 140. Axle;

[0039] 1401. Wheel;

[0040] 1402. Hub structure;

[0041] 1411. The first positioning structure;

[0042] 142. Diversion hole;

[0043] 143. Chute;

[0044] 150. Bushing;

[0045] 200. Hydraulic clutch device;

[0046] 210. Trigger lever;

[0047] 211. First end;

[0048] 2111. Ball bearing;

[0049] 212. Second end;

[0050] 213. Neck;

[0051] 2131. Second positioning structure;

[0052] 220. Mounting seat;

[0053] 221. Bottom plate;

[0054] 222. Side panels;

[0055] 223. Mounting slot;

[0056] 230. Friction wheel;

[0057] 2301.Through hole;

[0058] 231. Part I;

[0059] 232. Part II;

[0060] 233. Bump;

[0061] 240. First spring;

[0062] 250. One-way throttle valve;

[0063] 260. Buffer block;

[0064] 261. The third end;

[0065] 262. The fourth end;

[0066] 270. Second spring;

[0067] G1. First gap;

[0068] G2. The second gap;

[0069] S. Oil storage space. DETAILED DESCRIPTION

[0070] Typical embodiments that embody the features and advantages of the present disclosure will be described in detail in the following description. It should be understood that the present disclosure can have various changes in different embodiments without departing from the scope of the present disclosure, and the descriptions and drawings therein are essentially for illustrative purposes rather than for limiting the present disclosure.

[0071] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part of the present disclosure and in which different exemplary structures, systems and steps that can implement multiple aspects of the present disclosure are shown by way of example. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the present disclosure. Moreover, although the terms "above", "between", "within", etc. may be used in this specification to describe different exemplary features and elements of the present disclosure, these terms are used herein only for convenience, such as according to the direction of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present disclosure.

[0072] Hydraulic clutch device implementation method

[0073] See also Figure 1 , which representatively shows a disassembled schematic diagram of the hydraulic clutch device proposed in the present disclosure when installed on a transport sorting trolley. In this exemplary embodiment, the hydraulic clutch device proposed in the present disclosure is described by taking its application in a transport sorting trolley as an example. It is easy for those skilled in the art to understand that in order to apply the relevant designs of the present disclosure to other types of logistics storage and transportation equipment or other equipment, various modifications, additions, substitutions, deletions or other changes are made to the specific embodiments described below, and these changes are still within the scope of the principle of the hydraulic clutch device proposed in the present disclosure.

[0074] like Figure 1 As shown, in this embodiment, the hydraulic clutch device proposed in the present disclosure can be used for installation in a transport trolley (e.g., a transport sorting trolley). The transport sorting trolley may, for example, include a main beam 110, two rollers 120, a conveyor belt 130, and an axle 140. The two rollers 120 are respectively disposed at the two ends of the main beam 110, the conveyor belt 130 is wound around the two rollers 120, and the axle 140 is rotatably disposed on one side of the main beam 110. The hydraulic clutch device mainly includes a trigger rod 210, a mounting seat 220, a friction member, and a first elastic member. Figures 2 to 5 , Figure 2 A partial cross-sectional view of a hydraulic clutch device that can embody the principles of the present disclosure when installed on a transport and sorting trolley is representatively shown; Figure 3 A schematic diagram of a working state when a hydraulic clutch device that can embody the principle of the present disclosure is installed on a transport and sorting trolley is representatively shown in FIG. Figure 4 A schematic diagram representatively shows another working state of a hydraulic clutch device that can embody the principles of the present disclosure when installed on a transport and sorting trolley; Figure 5The schematic diagram of another working state when the hydraulic clutch device that can embody the principle of the present disclosure is installed on a transport sorting trolley is representatively shown in FIG. The structure, connection mode and functional relationship of each main component of the hydraulic clutch device proposed in the present disclosure are described in detail below in conjunction with the above drawings.

[0075] It should be noted that, in the description of this specification, the transport sorting trolley proposed in the present disclosure is taken as an example, that is, the transport sorting trolley includes a plurality of transport units (the relevant structure will be specifically described in the following implementation of the transport sorting trolley, and will not be repeated here), and these transport units are arranged sequentially along the first horizontal direction. On this basis, for the main beam 110 of each transport unit (that is, the main beam 110 of the above-mentioned transport sorting trolley), the two ends of the two rollers 120 are respectively provided at opposite ends of the main beam 110 in the second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction, and the side on which the wheel axle 140 is provided refers to one of the two opposite sides of the main beam 110 in the first horizontal direction.

[0076] Specifically, if Figure 1 and Figure 2 As shown, in this embodiment, the wheel axle 140 has an axial cavity at its end, the axial cavity extends along the axis of the wheel axle 140 (i.e., the center line of the axis), and the axial cavity opens at the end of the wheel axle 140. The trigger rod 210 is disposed in the axial cavity of the wheel axle 140, and the trigger rod 210 has a first end 211 and a second end 212, the first end 211 extends from the end of the wheel axle 140 to the axial cavity of the wheel axle 140, and the second end 212 extends into the axial cavity. The mounting seat 220 has a bottom plate 221 and a side plate 222. The bottom plate 221 is arranged on the outer wall of the axle 140, and the side plate 222 is connected to the bottom plate 221. The bottom plate 221, the side plate 222 of the mounting seat 220 and the outer wall of the axle 140 jointly define a mounting groove 223, and one end of the side plate 222 is connected to the bottom plate 221, and the other end extends toward the above-mentioned end of the axle 140, that is, the notch of the mounting groove 223 faces the above-mentioned end of the axle 140. The friction member is arranged on the outer wall of the axle 140 and can slide in the axial direction. The friction member has a mounting structure and a friction structure. The mounting structure is inserted into the mounting groove 223 and there is a first gap G1 between the mounting structure and the bottom of the mounting groove 223. The friction structure corresponds to the roller 120 and there is a second gap G2 between the friction structure and the roller 120. The first elastic member is connected between the friction member and the end of the axle 140 to provide an elastic force between the friction member and the end of the axle 140. The wheel shaft 140 is provided with at least one guide hole 142, which is connected between the shaft cavity and the first gap G1. As mentioned above, the second end 212, the first gap G1, the inner wall of the shaft cavity and the bottom of the cavity together define an oil storage space S filled with hydraulic oil (refer to Figure 2As shown). Accordingly, when the trigger rod 210 is pressed and moves toward the bottom of the shaft cavity, at least part of the hydraulic oil stored in the shaft cavity flows to the first gap G1 through the guide hole 142, so that the friction member moves away from the installation groove 223, and then the friction structure of the friction member is pressed against the roller 120, thereby achieving friction braking of the roller 120. Through the above design of the present disclosure, the present disclosure adopts a mechanical structure to achieve the braking function of the roller 120. Since no electrical braking mechanism is adopted, a large number of power supply, communication and control components are not required, and the structure is simple and the cost is low.

[0077] It should be noted that, in the present embodiment, the oil storage space S is defined by the second end 212, the first gap G1, the inner wall of the shaft cavity and the bottom of the cavity, and the above-mentioned structural design is used so that when the trigger rod 210 moves toward the bottom of the shaft cavity, the hydraulic oil can flow to the first gap G1 through the guide hole 142. Therefore, it is easy to understand that the related structures constituting the above-mentioned oil storage space S are designed with a tight fit to prevent the hydraulic oil from leaking and overflowing from other positions except the guide hole 142 during the above process. For example, the so-called tight fit can be understood as the inner and outer diameters of the two structures (such as the trigger rod 210 and the shaft cavity of the wheel axle 140, and also including the buffer block 260 and the shaft cavity described below) that are mutually sleeved are equal, or it can be understood as an interference fit.

[0078] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, the first end 211 of the trigger rod 210 may preferably be provided with a ball 2111. Accordingly, when the first end 211 of the trigger rod 210 is pushed by, for example, a trigger plate provided on other mechanisms, the provision of the ball 2111 can provide a sliding effect in the above-mentioned pushing process, mitigate the impact force between the structures, and extend the life of the device.

[0079] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, the first end 211 of the trigger rod 210 can be preferably designed to be a conical structure. In addition, based on the design that the first end 211 of the trigger rod 210 is provided with a ball 2111, the ball 2111 can be preferably provided at the tip of the first end 211 of the conical structure.

[0080] Furthermore, if Figure 1 and Figure 2As shown, in this embodiment, the trigger rod 210 may preferably have a neck 213. Specifically, the neck 213 is adjacent to the first end 211 of the trigger rod 210 and is located in the shaft cavity of the wheel shaft 140. On this basis, the cavity wall of the shaft cavity is provided with a first positioning structure 1411, and the outer wall of the neck 213 of the trigger rod 210 is provided with a second positioning structure 2131. The first positioning structure 1411 cooperates with the second positioning structure 2131 to limit the neck 213 in the shaft cavity, that is, to limit the length of the trigger rod 210 extending out of the shaft cavity of the wheel shaft 140.

[0081] Furthermore, if Figure 1 and Figure 2 As shown, based on the design of the first positioning structure 1411 and the second positioning structure 2131 cooperating and limiting, in this embodiment, the first positioning structure 1411 can be preferably designed as an annular step structure surrounding the wall of the shaft cavity, and correspondingly, the second positioning structure 2131 can be preferably designed as an annular step structure surrounding the outer wall of the neck 213 of the trigger rod 210. In other embodiments, the structures of the first positioning structure 1411 or the second positioning structure 2131 are not limited to the same, for example, the first positioning structure 1411 can be a block structure, or the second positioning structure 2131 can also be a block structure, which is not limited to this embodiment.

[0082] like Figure 1 and Figure 2 As shown, in this embodiment, the friction member can preferably be a wheel structure, that is, a friction wheel 230. Specifically, the friction wheel 230 is sleeved on the outer periphery of the wheel shaft 140, and the axis of the friction wheel 230 is provided with a through hole 2301 for the wheel shaft 140 to pass through along the axial direction. The friction member has a first portion 231 and a second portion 232 in the axial direction, and the first portion 231 is closer to the first end 211 of the trigger rod 210 than the second portion 232. Among them, the first portion 231 of the friction wheel 230 can define the friction structure of the friction member, and the second portion 232 of the friction wheel 230 can define the installation structure of the friction member. The specific preferred structures of the friction wheel 230 and its first portion 231 and second portion 232 will be described in detail below.

[0083] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, the first portion 231 of the friction wheel 230 may preferably be a frustum structure, and the annular conical surface of the frustum structure defines the friction structure. Accordingly, when the friction wheel 230 moves away from the mounting groove 223, the braking effect of the friction wheel 230 on the roller 120 is achieved by pressing the annular conical surface against the roller 120 (such as the end). In other embodiments, the first portion 231 of the friction wheel 230 may also adopt other structures, such as a conical structure, a columnar structure, etc., and is not limited to this embodiment.

[0084] Furthermore, based on the design of the first portion 231 of the friction wheel 230 being a frustum structure, in this embodiment, a friction pattern may be preferably provided on the annular conical surface of the first portion 231. Accordingly, the design of the friction pattern can increase the friction force generated between the friction wheel 230 and the drum 120 when the friction wheel 230 is pressed against the drum 120, thereby further optimizing the effect of friction braking.

[0085] Furthermore, based on the design that the friction texture is provided on the annular conical surface of the first portion 231, in this embodiment, the friction texture may preferably include at least one of a gear-shaped texture, a sawtooth-shaped texture, a grid-shaped texture, and a wave-shaped texture, or a combination of multiple thereof. In other embodiments, the friction texture may also include textures of other shapes or structures, and is not limited to this embodiment.

[0086] Furthermore, in this embodiment, the cross-sectional area of ​​the friction member (e.g., the area of ​​the annular cross-sectional area of ​​the friction wheel 230) can be preferably designed to be 4 to 10 times the cross-sectional area of ​​the trigger rod 210. Accordingly, only a small force is applied to the first end 211 of the trigger rod 210 to generate a large pressing force between the friction member and the roller 120, thereby further ensuring that the friction member and the roller 120 do not slip during the braking process.

[0087] Furthermore, in this embodiment, the cross-sectional area of ​​the friction member can be preferably designed to be 7 times the cross-sectional area of ​​the trigger rod 210 .

[0088] Further, in this embodiment, the pushing distance of the trigger rod 210 in the axial direction may preferably be an integral multiple of the width of the second gap G2 in the axial direction.

[0089] Further, in the present embodiment, the width of the second gap G2 in the axial direction may preferably be between 0.5 mm and 1.5 mm.

[0090] Furthermore, in the present embodiment, the width of the second gap G2 in the axial direction may preferably be 1 mm.

[0091] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, the bottom plate 221 of the mounting seat 220 can preferably be an annular structure surrounding the outer wall of the wheel shaft 140, that is, the mounting groove 223 is roughly an annular groove structure. On this basis, the second part 232 of the friction wheel 230 can preferably be a tubular structure (the through hole 2301 of the friction wheel 230 is the tube hole of the tubular structure). Accordingly, the second part 232 can be inserted into the mounting groove 223 and there is the above-mentioned first gap G1 between the second part 232 and the bottom of the mounting groove 223.

[0092] Furthermore, in this embodiment, the material of the friction wheel 230 can preferably be rubber. In other embodiments, the friction wheel 230 can also be made of other materials with a larger friction coefficient, so as to achieve the effect of increasing the friction force during the torque transmission process. Furthermore, the friction wheel 230 can be made of rubber material as a whole, and a friction sleeve made of rubber material can be set on the annular conical surface defining the friction structure, which is not limited to this embodiment.

[0093] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, in order to realize that the friction wheel 230 can be slidably arranged on the axle 140 in the axial direction, the hole wall of the through hole 2301 of the friction wheel 230 can preferably be provided with a protrusion 233, and accordingly, the outer wall of the axle 140 can preferably be provided with a slide groove 143. The protrusion 233 and the slide groove 143 are slidably matched, and the width of the slide groove 143 in the axial direction is greater than the width of the protrusion 233 in the axial direction, so that the friction wheel 230 can be slidably arranged on the outer wall of the axle 140 in the axial direction.

[0094] Furthermore, if Figure 1 and Figure 2 As shown, based on the design that the through hole 2301 of the friction wheel 230 is provided with a protrusion 233 and the outer wall of the wheel axle 140 is provided with a slide groove 143 that cooperates with the protrusion 233, in this embodiment, the protrusion 233 can preferably be an annular structure arranged around the hole wall of the through hole 2301, and accordingly, the slide groove 143 can preferably be an annular groove structure arranged around the outer wall of the wheel axle 140.

[0095] Furthermore, if Figures 1 to 3 As shown, in this embodiment, the first elastic member may preferably be a first spring 240. In the process of the friction member moving toward the end of the wheel shaft 140 (i.e., the direction of the first end 211 of the trigger rod 210), the first spring 240 is compressed and accumulates elastic potential energy. Figure 5 As shown, when the pressure on the trigger rod 210 disappears, the first spring 240 releases the elastic potential energy to provide an elastic restoring force to the friction member, that is, to push the friction member in the opposite direction toward the mounting seat 220, and the first gap G1 is compressed in the axial direction, so that the hydraulic oil flows back from the first gap G1 through the guide hole 142 to the shaft cavity of the axle 140 (the part between the second end 212 of the trigger rod 210 and the bottom of the cavity) until the first spring 240 returns to the initial state. The first spring 240 is connected between the friction member and the end of the axle 140 and is wound around the outer periphery of the axle 140. In other embodiments, the first elastic member can also be connected between the friction member and the end of the axle 140 using other elastic structures, such as springs, leaf springs, etc., and is not limited to this embodiment.

[0096] like Figure 1and Figure 2 As shown, in this embodiment, the hydraulic clutch device proposed in the present disclosure may also preferably include a one-way throttle valve 250. Specifically, the one-way throttle valve 250 is disposed in the shaft cavity of the wheel shaft 140 and is located between the second end 212 of the trigger rod 210 and the guide hole 142 of the wheel shaft 140. The one-way throttle valve 250 provides a one-way throttling function for the hydraulic oil in the direction from the guide hole 142 to the second end 212.

[0097] like Figures 1 to 4 As shown, in the present embodiment, the hydraulic clutch device proposed in the present disclosure may also preferably include a buffer block 260 and a second elastic member. Specifically, the buffer block 260 is disposed in the shaft cavity of the wheel axle 140. The buffer block 260 has a third end 261 and a fourth end 262, the third end 261 faces the trigger rod 210, and the fourth end 262 is connected to the bottom of the shaft cavity through the second elastic member. Accordingly, the above-mentioned oil storage space S is actually defined by the second end 212 of the trigger rod 210, the first gap G1, the inner wall of the shaft cavity and the third end 261 of the buffer block 260, that is, the end face of the third end 261 of the buffer block 260 actually serves as the bottom of the oil storage space S (that is, the bottom of the side of the end away from the wheel axle 140). As mentioned above Figure 5 As shown, the design of the buffer block 260 being elastically connected to the bottom of the shaft cavity by the second elastic member enables the second elastic member to absorb the excess pressure of the hydraulic oil after the friction wheel 230 is pressed against the roller 120 and the trigger rod 210 is further pressed into the axle 140, thereby protecting the friction wheel 230 and the roller 120 from being damaged due to excessive pressing force, thereby further providing a buffer protection function. Furthermore, the design of the buffer block 260 enables the buffer block 260 to provide a reverse buffer force (toward the end of the axle 140) during the process of the trigger rod 210 being pressed, thereby making the braking process smoother.

[0098] It should be noted that in order to achieve the buffering function in the above-mentioned preferred scheme through the design of the second elastic member, in the present embodiment, the elastic coefficient of the second elastic member is preferably greater than the elastic coefficient of the first elastic member, that is, the elastic force of the second elastic member is greater than the elastic force of the first elastic member, thereby ensuring that during the compression process of the trigger rod 210, the first elastic member is compressed first, and then the second elastic member produces compression deformation.

[0099] Furthermore, if Figure 4 As shown, in this embodiment, the second elastic member may be preferably a second spring 270. During the process of the trigger lever 210 being pressed and moving (i.e., the end portion moving away from the wheel shaft 140), the second spring 270 is compressed and accumulates elastic potential energy. Figure 5As shown, when the pressure on the trigger rod 210 disappears, the hydraulic oil flows back from the first gap G1 through the guide hole 142 to the shaft cavity of the wheel axle 140, and the second spring 270 releases the elastic potential energy and applies an elastic restoring force to the buffer block 260 toward the end of the wheel axle 140 until the second spring 270 returns to its initial state. The second spring 270 is connected between the buffer block 260 and the bottom of the shaft cavity, and is wound around the wall of the shaft cavity. In other embodiments, the second elastic member can also be connected between the buffer block 260 and the bottom of the shaft cavity using other elastic structures, such as springs, leaf springs, etc., and is not limited to this embodiment.

[0100] Furthermore, based on the design of the buffer block 260 and the second spring 270, in the present embodiment, the buffer stroke of the buffer block 260 can be preferably designed to be 3 mm to 7 mm.

[0101] Furthermore, in this embodiment, the buffer stroke of the buffer block 260 can be preferably designed to be 5 mm.

[0102] Furthermore, the design of the buffer block 260 and the second spring 270 is combined with the design of the one-way throttle valve 250. In this embodiment, when the trigger rod 210 loses the pressure on its first end 211, under the throttling effect of the one-way throttle valve 250, the pressing back process can preferably last for 1s to 3s.

[0103] Furthermore, in this embodiment, the above-mentioned pressing back process may preferably last for 2 seconds.

[0104] It should be noted that the hydraulic clutch devices shown in the drawings and described in this specification are only a few examples of the many types of hydraulic clutch devices that can employ the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details of the hydraulic clutch devices shown in the drawings or described in this specification or any components of the hydraulic clutch devices.

[0105] Implementation method of transport and sorting trolley

[0106] See also Figure 6 , which representatively shows the structural schematic diagram of the transport sorting trolley proposed in the present disclosure. In this exemplary embodiment, the transport sorting trolley proposed in the present disclosure is described by taking the sorting system applied to the logistics warehousing industry as an example. It is easy for those skilled in the art to understand that in order to apply the relevant design of the present disclosure to other types of transport sorting systems or similar systems in other industries, various modifications, additions, substitutions, deletions or other changes are made to the specific embodiments described below, and these changes are still within the scope of the principle of the transport sorting trolley proposed in the present disclosure.

[0107] like Figure 6As shown, in this embodiment, the transport sorting vehicle proposed in the present disclosure mainly includes a plurality of transport units 100, and these transport units 100 are sequentially connected along a first horizontal direction. Figure 6 Detailed description is given in FIG. 1 for a structural diagram of a transport unit 100 of the transport and sorting vehicle proposed in the present disclosure. Figure 7 , which is a representative top view of a transport unit 100 of a transport sorting trolley that can embody the principles of the present disclosure. The following is an example of the structure, connection mode and functional relationship of some main components of the transport sorting trolley proposed in the present disclosure, combined with the above-mentioned drawings.

[0108] like Figure 6 and Figure 7 As shown, in this embodiment, each transport unit 100 at least includes a main beam 110, two rollers 120, a conveyor belt 130, an axle 140, a sleeve 150, and a hydraulic clutch device 200 proposed in the present disclosure and specifically described in the above embodiment. Specifically, the two rollers 120 are respectively arranged at two opposite ends of the main beam 110 in the second horizontal direction, and the conveyor belt 130 is wound around the two rollers 120. The axle 140 is arranged on one of the two opposite sides in the first horizontal direction of the main beam 110, and the sleeve 150 is arranged on the other of the two opposite sides in the first horizontal direction of the main beam 110. Among them, the sleeve 150 on one side of each transport unit 100 is sleeved on the axle 140 on the other side of another adjacent transport unit 100, and multiple transport units 100 are sequentially connected along the first horizontal direction in the above connection mode, thereby forming the main structure of the transport sorting trolley proposed in the present disclosure.

[0109] Furthermore, if Figure 6 and Figure 7 As shown, in this embodiment, for each transport unit 100, the two ends of its axle 140 may preferably be provided with shaft cavities. Accordingly, each transport unit 100 is provided with two hydraulic clutch devices 200, which are respectively provided at the two ends of the axle 140, so that the two trigger rods 210 of the two hydraulic clutch devices 200 provide braking functions for the two rollers 120 respectively.

[0110] Further, in this embodiment, the conveyor belt 130 may preferably be a belt. In other embodiments, the conveyor belt 130 may also be other structures, such as a conveyor chain, a conveyor rack, etc., and is not limited to this embodiment.

[0111] It should be noted here that the transport sorting trolleys shown in the drawings and described in this specification are only a few examples of the many types of transport sorting trolleys that can adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details of the transport sorting trolleys shown in the drawings or described in this specification or any components of the transport sorting trolleys.

[0112] For example, Figure 6 As shown, in this embodiment, a wheel is provided on the wheel axle 140, so that the sliding function of the transport and sorting trolley is realized through the sliding cooperation between the pulley and the structure of the conveying and sorting system, such as a slide rail.

[0113] Furthermore, if Figure 2 As shown, based on the design of setting the wheel on the axle 140, in this embodiment, the hub structure of the axle 140 for mounting the wheel can be set on the neck 213 of the axle 140, so that the first spring 240 is set between the hub structure and the friction wheel 230.

[0114] In summary, the hydraulic clutch device proposed in the present disclosure has a trigger rod that passes through the wheel axle, and the friction member can be slidably arranged on the wheel axle along the axial direction and has a mounting structure and a friction structure. The mounting structure is inserted into the mounting groove and there is a first gap between the mounting structure and the bottom of the mounting groove, and the friction structure corresponds to the roller. The first elastic member is connected between the friction member and the end of the wheel axle. The wheel axle is provided with a guide hole connecting the shaft cavity and the first gap, and the second end, the first gap, the inner wall of the shaft cavity and the bottom of the cavity together define an oil storage space filled with hydraulic oil. Through the above design, when the trigger rod is pressurized and moves toward the bottom of the shaft cavity, the hydraulic oil flows to the first gap, so that the friction member frictionally brakes the roller. Accordingly, the present disclosure adopts a mechanical structure to realize the braking function of the roller. Since an electrical braking mechanism is not adopted, a large number of power supply, communication and control components are not required, and the structure is simple and the cost is low.

[0115] The above describes and / or illustrates in detail the exemplary embodiments of the hydraulic clutch device proposed by the present disclosure and the transport sorting trolley with the device. However, the embodiments of the present disclosure are not limited to the specific embodiments described here. On the contrary, the components and / or steps of each embodiment can be used independently and separately from other components and / or steps described here. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated here, the terms "one", "one" and "above" are used to indicate the presence of one or more elements / components / etc. The terms "comprising", "including" and "having" are used to indicate the meaning of open inclusion and mean that in addition to the listed elements / components / etc., there may be other elements / components / etc. In addition, the terms "first" and "second" in the claims and the specification are used only as marks and are not numerical restrictions on their objects.

[0116] Although the hydraulic clutch device and the transport sorting trolley with the device proposed in the present disclosure have been described according to different specific embodiments, those skilled in the art will recognize that the implementation of the present disclosure can be modified within the spirit and scope of the claims.

Claims

1. A hydraulic clutch device installed on a transport trolley, the transport trolley comprising a main beam, rollers arranged at both ends of the main beam, a conveyor belt wound around the rollers, and a wheel axle arranged on one side of the main beam; characterized in that: The hydraulic clutch device comprises: A trigger rod is inserted into the shaft cavity of the wheel shaft and has a first end and a second end, wherein the first end extends out of the wheel shaft and the second end extends into the shaft cavity; A mounting seat, comprising a bottom plate arranged on the outer wall of the wheel axle and a side plate connected to the bottom plate, wherein the bottom plate, the side plate and the outer wall of the wheel axle jointly define a mounting groove with a notch facing the end of the wheel axle; a friction member, slidably disposed on the outer wall of the wheel shaft in the axial direction and having a mounting structure and a friction structure, wherein the mounting structure is inserted into the mounting groove and has a first gap with the groove bottom of the mounting groove, and the friction structure corresponds to the roller and has a second gap with the roller; and A first elastic member connected between the friction member and the end of the wheel shaft; Among them, the wheel axle is provided with a guide hole connecting the shaft cavity and the first gap, and the second end, the first gap, the inner wall of the shaft cavity and the bottom of the cavity jointly define an oil storage space filled with hydraulic oil; when the trigger rod is pressurized and moves toward the bottom of the shaft cavity, the hydraulic oil flows to the first gap, causing the friction member to move away from the mounting groove and press against the roller to achieve friction braking.

2. The hydraulic clutch device according to claim 1, characterized in that: The first end of the trigger rod is provided with a ball.

3. The hydraulic clutch device according to claim 1, characterized in that: The trigger rod has a neck adjacent to the first end, the cavity wall of the shaft cavity is provided with a first positioning structure, the outer wall of the neck is provided with a second positioning structure, and the first positioning structure cooperates with the second positioning structure to limit the neck in the shaft cavity.

4. The hydraulic clutch device according to claim 1, characterized in that: The friction member is a friction wheel, and a through hole is formed at the center of the friction wheel axis for the wheel axle to pass through. The friction member has a first portion and a second portion in the axial direction, and the first portion is closer to the first end of the trigger rod than the second portion. The first portion defines the friction structure, and the second portion defines the mounting structure.

5. The hydraulic clutch device according to claim 4, characterized in that: The first portion of the friction wheel is in a frustum structure, and the annular conical surface of the frustum structure defines the friction structure; wherein when the friction wheel moves away from the mounting groove, the annular conical surface is pressed against the roller to achieve friction braking.

6. The hydraulic clutch device according to claim 5, characterized in that: The annular conical surface has friction patterns.

7. The hydraulic clutch device according to claim 6, characterized in that: The friction pattern includes at least one of a gear-shaped pattern, a sawtooth-shaped pattern, a grid-shaped pattern, and a wavy line pattern.

8. The hydraulic clutch device according to claim 5, characterized in that: The bottom plate of the mounting seat is an annular structure surrounding the outer wall of the wheel axle, so that the mounting groove is an annular groove structure; wherein the second part of the friction wheel is a tubular structure, the second part is inserted into the mounting groove and there is the first gap between the second part and the bottom of the mounting groove.

9. The hydraulic clutch device according to claim 5, characterized in that: The friction wheel is made of rubber.

10. The hydraulic clutch device according to claim 5, characterized in that: The hole wall of the through hole of the friction wheel is provided with a protrusion, the outer wall of the wheel shaft is provided with a sliding groove, the protrusion is slidably matched with the sliding groove, so that the friction wheel can be slidably arranged on the outer wall of the wheel shaft along the axial direction.

11. The hydraulic clutch device according to claim 1, characterized in that: The width of the first gap in the axial direction is 0.5 mm to 1.5 mm.

12. The hydraulic clutch device according to claim 1, characterized in that: The first elastic member is a first spring, which is connected between the friction member and the end of the wheel shaft and is wound around the outer circumference of the wheel shaft.

13. The hydraulic clutch device according to claim 1, characterized in that: The hydraulic clutch device also includes: a one-way throttle valve, disposed in the shaft cavity of the wheel shaft and between the second end of the trigger rod and the guide hole of the wheel shaft; Wherein, the one-way throttle valve is configured to throttle one-way in the direction from the guide hole to the second end.

14. The hydraulic clutch device according to claim 1, characterized in that: The hydraulic clutch device comprises: a buffer block, disposed in the shaft cavity of the wheel axle, and having a third end and a fourth end, the third end facing the trigger rod, and the fourth end connected to the bottom of the shaft cavity through a second elastic member; The second end of the trigger rod, the first gap, the inner wall of the shaft cavity and the third end jointly define the oil storage space.

15. The hydraulic clutch device according to claim 14, characterized in that: The second elastic member is a second spring, and the second spring is connected between the fourth end of the buffer block and the bottom of the shaft cavity.

16. A transport sorting trolley, comprising a plurality of transport units connected in sequence along a first horizontal direction, each of the transport units comprising a main beam, rollers arranged at both ends of the main beam, a conveyor belt wound around the rollers, and a wheel axle arranged at one side of the main beam; characterized in that: Each of the transport units further comprises a hydraulic clutch device as claimed in any one of claims 1 to 15.

17. The transport and sorting trolley according to claim 16, characterized in that: Axle cavities are respectively opened at both ends of the wheel axle, and each of the transport units includes two hydraulic clutch devices, which are respectively arranged at the two ends of the wheel axle; wherein the two trigger rods of the two hydraulic clutch devices are respectively configured to brake the two rollers.

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