A bearing block end cover mechanism with pin hole positioning structure

Abstract

The application relates to the technical field of support wheels, in particular to a support wheel end cover mechanism with pin hole positioning structure, which comprises a support wheel body, sealing end covers are arranged at the two ends of the support wheel body, mounting bearing bushes are nested on the left and right sides in the support wheel body, a support wheel shaft is movably sleeved in the mounting bearing bushes, and a plurality of oil supply grooves are formed in the inner ring of the mounting bearing bushes. The support wheel end cover mechanism with the pin hole positioning structure is provided with two groups of independent oil storage chambers between the support wheel body and the support wheel shaft, in use, a micro electric telescopic rod can be used to apply pressure to a pressure sensor to drive a push oil ring to move, lubricating oil is pushed into the mounting bearing bushes and the support wheel shaft, the lubricating effect of the mounting bearing bushes and the support wheel shaft is guaranteed, meanwhile, a PLC controller can control the micro electric telescopic rod to drive the push oil ring to move according to the feedback data of the pressure sensor, and the oil supply can be carried out with constant force.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of support wheel, in particular to a support wheel end cover mechanism with pin hole positioning structure. BACKGROUND

[0002] The support wheel is an important component of the chassis of the tracked engineering machinery, and realizes the walking of the whole machine together with the track and the guide wheel, the supporting wheel, the driving wheel and the tensioning device. The support wheel is composed of a wheel body, a shaft, a shaft sleeve (or bearing), a sealing assembly, a cover and related components. The function of the support wheel is to transmit the weight of the vehicle group to the ground and roll on the track. In order to prevent derailment, the support wheel should also be able to prevent the track from moving laterally relative to it. The type of support wheel used for the combined track and the integral or rubber track is different: the support wheel of the combined track rolls on the guide rail, while the support wheel of the integral or rubber track rolls on the track plate. The support wheel of the combined track has two types. One is single flange, and the other is double flange. The flange is used to prevent the track from moving laterally relative to it to prevent derailment when turning. In order to reduce the friction between the flange side and the guide rail side, the flange side is often made into an inclined surface.

[0003] The support wheel is internally provided with liquid lubricating oil, which mainly forms an oil film between the bearing bush and the shaft when the wheel body rotates, and plays a role of lubrication and bearing. At the same time, end covers and sealing structures are arranged at both ends of the wheel body to prevent lubricating oil from leaking and prevent foreign matters from entering from outside. At present, the support wheel is usually supplemented with lubricating oil inside according to the use cycle, and the lubricating oil is periodically supplemented, which is easy to cause dry grinding between the bearing bush and the shaft, resulting in serious wear of the bearing bush or the shaft. In addition, the existing technology usually opens an oil storage chamber in the support wheel, but the oil supply between the bearing bush and the shaft mainly relies on the fluidity of the lubricating oil. When the lubricating oil is used for a long time, the viscosity of the lubricating oil increases, and the bearing bush and the shaft are in direct contact, so that the lubricating oil is difficult to enter between the bearing bush and the shaft, causing the bearing bush and the shaft to be not lubricated, and aggravating the wear. Therefore, we propose a support wheel end cover mechanism with pin hole positioning structure to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a support wheel end cover mechanism with pin hole positioning structure, which solves the problems raised in the background art.

[0005] In order to achieve the above object, the application is implemented by the following technical scheme: a supporting wheel end cover mechanism with pin hole positioning structure, comprising a supporting wheel body, both ends of the supporting wheel body are provided with sealing end covers, both sides of the inside of the supporting wheel body are nested with installation bearing bushes, the inside of the installation bearing bushes movably sheaths a supporting wheel shaft, the inside of the installation bearing bushes is provided with a plurality of oil supply grooves, the outside of the supporting wheel shaft movably sheaths floating oil seals located at both ends of the supporting wheel body, the sealing end covers are connected to the outside of the floating oil seals, the end parts of the sealing end covers and the supporting wheel shaft are inserted with locking pin shafts, the middle part of the supporting wheel shaft is provided with two groups of oil supply mechanisms, the oil supply mechanisms comprise micro electric telescopic rods, pressure sensors and oil pushing rings, the inside of the supporting wheel body is provided with oil storage chambers located at the outside of the oil supply mechanisms, the supporting wheel shaft is fixedly installed with two groups of contact sensors matched with the oil supply mechanisms, the outside of the supporting wheel body is provided with installation chambers, the inside of the installation chambers are fixedly installed with PLC controllers and battery groups, the supporting wheel body is provided with two groups of oil injection nozzles matched with the oil storage chambers.

[0006] Preferably, the overall shape of the oil supply groove is "U" shape, one end of the oil supply groove close to the oil storage chamber is in a through state, and the cross-sectional shape of the oil supply groove is any one of semicircular, oval or rectangular.

[0007] Preferably, the sealing end cover and the supporting wheel shaft are provided with locking pin holes matched with the locking pin shafts, the sealing end cover is locked to the outside of the supporting wheel shaft through the locking pin shaft, the supporting wheel shaft is sheathed with a sealing rubber ring matched with the sealing end cover, and the sealing end cover applies a pre-pressure to the floating oil seal when sheathed on the outside of the supporting wheel shaft.

[0008] Preferably, the micro electric telescopic rod is fixedly installed on the supporting wheel shaft, the output shaft of the micro electric telescopic rod is threadedly connected with the pressure sensor, and the oil pushing ring is movably sheathed on the supporting wheel shaft and threadedly connected with the pressure sensor.

[0009] Preferably, the oil pushing ring comprises a center ring, a sealing inner silica gel ring and a sealing outer silica gel ring, the sealing inner silica gel ring is connected to the inner circle of the center ring, and the sealing outer silica gel ring is connected to the outer circle of the center ring.

[0010] Preferably, the inner circle and the outer circle of the center ring are provided with positioning clamping grooves, and the outer circle of the sealing inner silica gel ring and the inner circle of the sealing outer silica gel ring are provided with positioning clamping rings matched with the positioning clamping grooves.

[0011] Preferably, the contact sensor is located at the side of the oil storage chamber far away from the oil supply mechanism, and the contact sensor is electrically connected with the PLC controller.

[0012] Preferably, the PLC controller inside the installation chamber is electrically connected with the micro electric telescopic rod and the pressure sensor, the PLC controller is electrically connected with the battery pack, a wireless transceiver module is arranged on the PLC controller, and a cover is fixedly installed at the end of the installation chamber.

[0013] The application provides a bearing wheel end cover mechanism with a pin hole positioning structure.

[0014] 1. The bearing wheel end cover mechanism with the pin hole positioning structure sets two groups of independent oil storage chambers between the bearing wheel body and the bearing wheel shaft, in use, the micro electric telescopic rod can apply pressure to the pressure sensor to drive the oil pushing ring to move, lubricating oil is pushed into the installation bearing bush and the bearing wheel shaft, the lubricating effect of the installation bearing bush and the bearing wheel shaft is ensured, the micro electric telescopic rod can drive the oil pushing ring to move under the control of the PLC controller according to the feedback data of the pressure sensor, constant force can be provided for oil supply, the lubricating effect is ensured, and the lubricating oil leakage caused by excessive pressure is prevented, in addition, when the sealing end cover is installed, pre-pressure is applied to the sealing end cover to press the sealing end cover against the floating oil seal, the sealing effect is improved, and the lubricating oil leakage is further prevented.

[0015] 2. The bearing wheel end cover mechanism with the pin hole positioning structure sets the contact sensor on the bearing wheel shaft, when the contact sensor is extruded by the oil pushing ring, the surface oil storage chamber has too little lubricating oil, the contact sensor can transmit data to the PLC controller and transmit the data to the control system through the wireless transceiver module, when the lubricating oil is less, feedback can be made in time, the lubricating oil can be quickly added, and dry grinding between the installation bearing bush and the bearing wheel shaft is prevented.

[0016] 3. The bearing wheel end cover mechanism with the pin hole positioning structure has a plurality of oil supply grooves formed in the inner side of the installation bearing bush, lubricating oil can enter the installation bearing bush and the bearing wheel shaft along the oil supply grooves, when the installation bearing bush and the bearing wheel shaft rotate, the lubricating oil can be uniformly distributed on the inner ring of the installation bearing bush and the outer ring of the bearing wheel shaft, the bearing wheel shaft is comprehensively lubricated, and the lubricating effect is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the overall combination of the application;

[0018] Figure 2 It is a structural schematic view of the overall section of the application;

[0019] Figure 3 It is a structural schematic view of the installation bearing bush of the application;

[0020] Figure 4 It is a structural schematic view of the section of the installation bearing bush of the application;

[0021] Figure 5 Structure diagram of the oil supply mechanism of the application;

[0022] Figure 6 Structure diagram of the oil pushing ring of the application;

[0023] Figure 7 Structure diagram of the installation chamber of the application.

[0024] In the figure: 1, load wheel body; 2, installation bearing bush; 3, load wheel shaft; 4, sealing end cover; 5, floating oil seal; 6, locking pin shaft; 7, sealing rubber ring; 8, oil storage chamber; 9, oil supply mechanism; 91, micro electric telescopic rod; 92, pressure sensor; 93, oil pushing ring; 931, center ring; 932, sealing inner silica gel ring; 933, sealing outer silica gel ring; 934, positioning clamping groove; 935, positioning clamping ring; 10, oil filling nozzle; 11, oil supply groove; 12, locking pin hole; 13, installation chamber; 14, PLC controller; 15, battery pack; 16, cover; 17, contact sensor. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application.

[0026] Please refer to Figure 1 , 2The application provides a technical scheme: a supporting wheel end cover mechanism with pin hole positioning structure, which comprises a supporting wheel body 1, sealing end covers 4 are arranged at both ends of the supporting wheel body 1, mounting bearing bushings 2 are nested at the left and right sides in the supporting wheel body 1, movable supporting wheel shafts 3 are movably sleeved in the mounting bearing bushings 2, a plurality of oil supply grooves 11 are formed in the inner rings of the mounting bearing bushings 2, lubricating oil can enter between the mounting bearing bushings 2 and the supporting wheel shafts 3 along the oil supply grooves 11, when the mounting bearing bushings 2 and the supporting wheel shafts 3 rotate, the lubricating oil can be uniformly distributed on the inner rings of the mounting bearing bushings 2 and the outer rings of the supporting wheel shafts 3, thereby realizing comprehensive lubrication of the supporting wheel shafts 3, floating oil seals 5 are movably sleeved on the outer sides of the supporting wheel shafts 3 and located at the two ends of the supporting wheel body 1, the sealing end covers 4 are clamped on the outer sides of the floating oil seals 5, locking pin shafts 6 are inserted into the end portions of the sealing end covers 4 and the supporting wheel shafts 3, the sealing end covers 4 are locked on the supporting wheel shafts 3 through the locking pin shafts 6, the firmness of the connection is ensured, two groups of oil supply mechanisms 9 are arranged in the middle portions of the supporting wheel shafts 3 and comprise micro electric telescopic rods 91, pressure sensors 92 and oil pushing rings 93, an oil storage chamber 8 is arranged in the inside of the supporting wheel body 1 and located on the outer side of the oil supply mechanisms 9, two groups of contact sensors 17 are fixedly arranged on the supporting wheel shafts 3 and matched with the oil supply mechanisms 9, when the contact sensors 17 are extruded by the oil pushing rings 93, the internal lubricating oil of the surface oil storage chamber 8 is insufficient, the contact sensors 17 can transmit data to a PLC controller 14 and then transmit the data to a control system through a wireless transceiving module, when the lubricating oil is insufficient, feedback can be given in time, so that the lubricating oil can be quickly added, an installation chamber 13 is formed in the outer side of the supporting wheel body 1, and the PLC controller 14 and a battery pack 15 are fixedly arranged in the installation chamber 13, two groups of oil injection nozzles 10 are arranged on the supporting wheel body 1 and matched with the oil storage chamber 8, when the internal lubricating oil of the oil storage chamber 8 is insufficient, the internal lubricating oil of the oil storage chamber 8 can be added through the oil injection nozzles 10.

[0027] Please refer to Figure 3 、 4 The overall shape of the oil supply groove 11 is a U shape, lubricating oil can enter between the mounting bearing bushing 2 and the supporting wheel shaft 3 along the oil supply groove 11, when the mounting bearing bushing 2 and the supporting wheel shaft 3 rotate, the lubricating oil can be uniformly distributed on the inner ring of the mounting bearing bushing 2 and the outer ring of the supporting wheel shaft 3, thereby realizing comprehensive lubrication of the supporting wheel shaft 3, one end of the oil supply groove 11 close to the oil storage chamber 8 is in a through state, the cross-sectional shape of the oil supply groove 11 is any one of a semicircle, an ellipse and a rectangle, the cross-sectional shape and size of the oil supply groove 11 can be selected according to the actual working condition of the supporting wheel, so that the oil supply groove 11 can supply sufficient lubricating oil for the mounting bearing bushing 2 and the supporting wheel shaft 3.

[0028] Please refer to Figure 2 、 5, the sealing end cover 4 is locked on the outside of the supporting wheel shaft 3 through the locking pin shaft 6, the supporting wheel shaft 3 is sleeved with the sealing rubber ring 7 matched with the sealing end cover 4, the sealing end cover 4 applies a pre-pressure to the floating oil seal 5 when being sleeved on the outside of the supporting wheel shaft 3, the pre-pressure is applied to the sealing end cover 4, and the sealing end cover 4 is locked through the locking pin shaft 6, so that the sealing end cover 4 can apply a pressure to the floating oil seal 5, the sealing structure inside the floating oil seal 5 is deformed under stress, the sealing effect is improved, the leakage of lubricating oil is further prevented, the micro electric telescopic rod 91 is fixedly installed on the supporting wheel shaft 3, the pressure sensor 92 is threadedly connected to the output shaft of the micro electric telescopic rod 91, the pressure sensor 92 is pressed through the micro electric telescopic rod 91, the oil pushing ring 93 is driven to move, the lubricating oil is pushed into the installation bearing bush 2 and the supporting wheel shaft 3, and the lubricating effect of the installation bearing bush 2 and the supporting wheel shaft 3 is guaranteed, the oil pushing ring 93 is movably sleeved on the supporting wheel shaft 3, and the oil pushing ring 93 is threadedly connected with the pressure sensor 92, the pressure data applied to the lubricating oil in the oil storage chamber 8 can be detected through the pressure sensor 92, data is fed back to the PLC controller 14, the PLC controller 14 can control the micro electric telescopic rod 91 to drive the oil pushing ring 93 to move and supply the lubricating oil, the oil pushing ring 93 comprises a center ring 931, a sealing inner silica gel ring 932 and a sealing outer silica gel ring 933, the sealing inner silica gel ring 932 is clamped to the inner ring of the center ring 931, and the sealing outer silica gel ring 933 is clamped to the outer ring of the center ring 931, the sealing inner silica gel ring 932 and the sealing outer silica gel ring 933 are arranged on the inner and outer rings of the center ring 931, the sealing property of the contact surface between the center ring 931 and the supporting wheel shaft 3 and the supporting wheel body 1 is guaranteed, and the lubricating oil is prevented from entering between the two groups of oil supply mechanisms 9, the contact sensor 17 is located on one side of the oil storage chamber 8 away from the oil supply mechanism 9, the contact sensor 17 is electrically connected with the PLC controller 14, when the contact sensor 17 is pressed by the oil pushing ring 93, the surface of the oil storage chamber 8 is insufficient in lubricating oil, the contact sensor 17 can transmit data to the PLC controller 14, and the data is transmitted to the control system through the wireless transceiver module, so that the lubricating oil can be quickly added.

[0029] Please refer to Figure 6 , the inner ring and the outer ring of the center ring 931 are provided with positioning clamping grooves 934, the outer ring of the sealing inner silica gel ring 932 and the inner ring of the sealing outer silica gel ring 933 are provided with positioning clamping rings 935 matched with the positioning clamping grooves 934, the positioning clamping grooves 934 and the positioning clamping rings 935 are limited, the stability of the connection between the sealing inner silica gel ring 932, the sealing outer silica gel ring 933 and the center ring 931 is guaranteed, and the sealing inner silica gel ring 932 and the sealing outer silica gel ring 933 are convenient to replace.

[0030] Please refer to Figure 2 , 7The PLC controller 14 inside the installation chamber 13 is electrically connected with the micro electric telescopic rod 91 and the pressure sensor 92, the PLC controller 14 is electrically connected with the battery pack 15, the PLC controller 14 is provided with a wireless transceiver module, the PLC controller 14 can transmit the related data of the lubricating oil to the control system of the device using the supporting wheel, and the lubricating oil can be added in time, the end of the installation chamber 13 is fixedly provided with a cover 16, and the cover 16 can supply power to each electrical structure.

[0031] In summary, the supporting wheel end cover mechanism with the pin hole positioning structure is used, the PLC controller 14 is electrically connected with the two groups of micro electric telescopic rods 91, the pressure sensor 92 and the contact sensor 17 inside the supporting wheel body 1, the PLC controller 14 is connected with the control system of the device using the supporting wheel through the wireless transceiver module, the force exerted by the micro electric telescopic rod 91 on the oil pushing ring 93 is set through the PLC controller 14, the action threshold of the micro electric telescopic rod 91 is set, the micro electric telescopic rod 91 applies elastic force to the pressure sensor 92 and the oil pushing ring 93, the lubricating oil in the oil storage chamber 8 is pushed into the oil supply groove 11 inside the installation bearing bush 2, when the installation bearing bush 2 and the supporting wheel shaft 3 rotate, the lubricating oil is uniformly distributed in the inner circle of the installation bearing bush 2 and the inner circle of the supporting wheel shaft 3, and comprehensive lubrication is realized, when the lubricating oil between the installation bearing bush 2 and the supporting wheel shaft 3 is lost, the lubricating oil in the oil storage chamber 8 is reduced, the pressure of the pressure sensor 92 changes, the pressure sensor 92 transmits the pressure data to the PLC controller 14, the PLC controller 14 controls the micro electric telescopic rod 91 to move the oil pushing ring 93 according to the pressure data and the set threshold, so that the lubricating oil pressure is kept constant, and the contact surface of the installation bearing bush 2 and the supporting wheel shaft 3 is continuously lubricated, when the contact sensor 17 is pressed by the oil pushing ring 93, the lubricating oil in the surface oil storage chamber 8 is too little, the contact sensor 17 transmits the data to the PLC controller 14 and transmits the data to the control system through the wireless transceiver module, and the lubricating oil is added, when the sealing end cover 4 is installed, the sealing end cover 4 is pre-pressed, the sealing end cover 4 is pressed against the floating oil seal 5, the sealing effect is improved, and the leakage of the lubricating oil is prevented.

[0032] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A mechanism of the end cover of the supporting wheel with the pin hole positioning structure, comprising the supporting wheel body (1), the sealing end cover (4) is arranged at both ends of the supporting wheel body (1), characterized in that: The inside of the supporting wheel body (1) is nested with two installation bushings (2) on the left and right sides, and the inside of the installation bushing (2) movably sheaths a supporting wheel shaft (3), a plurality of oil supply grooves (11) are formed in the inner ring of the installation bushing (2), the outside of the supporting wheel shaft (3) movably sheaths a floating oil seal (5) located at the two end portions of the supporting wheel body (1), the sealing end cover (4) is clamped on the outside of the floating oil seal (5), the sealing end cover (4) and the end portion of the supporting wheel shaft (3) are inserted with a locking pin shaft (6), the middle portion of the supporting wheel shaft (3) is provided with two groups of oil supply mechanisms (9), and the oil supply mechanism (9) comprises a miniature electric telescopic rod (91), a pressure sensor (92) and an oil pushing ring (93), the inside of the supporting wheel body (1) is provided with an oil storage chamber (8) located on the outside of the oil supply mechanism (9), two groups of contact sensors (17) are fixedly installed on the supporting wheel shaft (3) and matched with the oil supply mechanism (9), an installation chamber (13) is formed on the outside of the supporting wheel body (1), and a PLC controller (14) and a battery pack (15) are fixedly installed in the installation chamber (13), and two groups of oil injection nozzles (10) are arranged on the supporting wheel body (1) and matched with the oil storage chamber (8). The miniature electric telescopic rod (91) is fixedly installed on the supporting wheel shaft (3), the output shaft of the miniature electric telescopic rod (91) is threadedly connected with the pressure sensor (92), and the oil pushing ring (93) is movably sheathed on the supporting wheel shaft (3) and threadedly connected with the pressure sensor (92). The contact sensor (17) is located on the side of the oil storage chamber (8) away from the oil supply mechanism (9), and the contact sensor (17) is electrically connected with the PLC controller (14).

2. A mechanism for a wheel end cap with pin hole location structure as set forth in claim 1, characterized in that: The overall shape of the oil supply groove (11) is "U" shape, one end of the oil supply groove (11) close to the oil storage chamber (8) is in a through state, and the cross-sectional shape of the oil supply groove (11) is any one of semicircular, oval and rectangular.

3. The wheel end cap mechanism with pin hole positioning structure of claim 1, wherein: The sealing end cover (4) and the supporting wheel shaft (3) are provided with locking pin holes (12) matched with the locking pin shaft (6), the sealing end cover (4) is locked on the outside of the supporting wheel shaft (3) through the locking pin shaft (6), the supporting wheel shaft (3) is sheathed with a sealing rubber ring (7) matched with the sealing end cover (4), and the sealing end cover (4) applies a pre-pressure to the floating oil seal (5) when sheathed on the outside of the supporting wheel shaft (3).

4. The wheel end cap mechanism with pin hole positioning structure of claim 1, wherein: The oil pushing ring (93) comprises a center ring (931), a sealing inner silica gel ring (932) and a sealing outer silica gel ring (933), the sealing inner silica gel ring (932) is clamped on the inner ring of the center ring (931), and the sealing outer silica gel ring (933) is clamped on the outer ring of the center ring (931).

5. A tyiie end cap mechanism with pin hole positioning structure according to claim 4, characterized in that: The inner ring and the outer ring of the center ring (931) are provided with positioning clamping grooves (934), and the outer ring of the sealing inner silica gel ring (932) and the inner ring of the sealing outer silica gel ring (933) are provided with positioning clamping rings (935) matched with the positioning clamping grooves (934).

6. A wheel end cap mechanism with pin hole positioning structure according to claim 1, characterized in that: The PLC controller (14) inside the installation chamber (13) is electrically connected with the micro electric telescopic rod (91) and the pressure sensor (92), the PLC controller (14) is electrically connected with the battery pack (15), a wireless transceiver module is arranged on the PLC controller (14), and the end of the installation chamber (13) is fixedly installed with a cover (16).

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