WO2018145422A1

WO2018145422A1 - Anti-wind crawler driving wheel with track blocks

Info

Publication number: WO2018145422A1
Application number: PCT/CN2017/095013
Authority: WO
Inventors: 原泉
Original assignee: 原泉
Priority date: 2017-02-09
Filing date: 2017-07-28
Publication date: 2018-08-16
Also published as: CN106828637A; CN106828637B

Abstract

An anti-wind crawler drive wheel with track blocks, comprising a side plate (1), a shell (2), a retaining sleeve (4), an adjusting mechanism (5), a clamp channel (6), a side baffle (7), a top shaft (8), a top shaft side rotating sleeve (9), a top shaft middle rotating sleeve (10), an anti-collision block (11), a pressure channel (12), an end shaft (13), an end lug (14), an anti-collision block lug (61), a retaining sleeve inner groove (62), an inner baffle (63), crawler chains (65), chain inclined planes (66), and chain top openings (67), wherein the crawler chains (65) are connected by means of rotating shafts to form a crawler belt, sharp corners of the shell are clamped into the chain inclined planes (66) of the crawler chains (65) to drive the crawler belt to rotate; the adjusting mechanism (5) comprises a fixing column (15), a first spring (16), a spiral spring (17), a snap board (18), a rotating mechanism (19), an S-shaped lever (20), a pressure plate (21), a plate spring (49), a plate spring support (50), a snap board rod (51), an external fixing block (53), a sliding shaft (55), a notch (59), an internal fixing block (60), a pressure plate rod (64), a front stroke guide plane (70), a first track block (71), a rear stroke guide plane (72), a second track block (73), and a rear stroke retaining plane (74); the retaining sleeve (4), the inner baffle (63) and the side baffle (7) cover spaces among the sharp corners of the shell and adjacent sharp corners, and the phenomenon that the crawler wheel loses efficacy due to the fact that weed or entanglements are wound around the sharp corners of the driving wheels generally can be avoided; the passibility of the crawler wheel is improved.

Description

Anti-winding track drive wheel with track block

Technical field

The invention belongs to the technical field of crawler drives, and in particular relates to an anti-winding crawler drive wheel with a track block.

Background technique

At present, the crawler drive is used in all aspects of the engineering vehicle; the durability of the track of the engineering vehicle, the passability of any terrain and the destructiveness of the terrain are the main indicators for evaluating the quality of a crawler truck; in particular, it is driven by various plants. The straw that can be wound around the wheel or the ground with the steel wire with a certain length discarded, the track angle of the track drive wheel will be easily entangled, the drive is hindered by the light, and the track structure is damaged by the heavy one, causing a large loss. Affect work tasks. Therefore, it is necessary to design an anti-winding track drive wheel.

The present invention contemplates an anti-wrap track drive wheel with a track block to solve the above problems.

Summary of the invention

In order to solve the above-mentioned drawbacks in the prior art, the present invention discloses an anti-winding crawler drive wheel with a track block, which is realized by the following technical solutions.

Anti-winding crawler drive wheel with track block, characterized in that it comprises side plate, shell, retaining sleeve, adjusting mechanism, card passage, side baffle, top shaft, top shaft side swivel sleeve, top shaft middle sleeve , anti-collision block, pressure channel, end shaft, end lug, anti-collision lug, inner shroud, inner shroud, track chain, chain bevel, chain top, chain top, wherein the middle of the casing Hollow, the outer edge is uniformly distributed with a plurality of sharp corners in the circumferential direction; side plates are respectively installed on both sides of the shell, and both ends of the sharp-pointed end are mounted with an end shaft through an end lug, and between the sharp corner and the adjacent sharp corner The groove has a pressure passage, and the top end of the corner has a card passage; the end of the sleeve is provided with a groove inner groove, and the top shaft side sleeve is mounted on one side of the end of the sleeve without the opening, and the two sides of the end plate are respectively The anti-collision block is mounted with the anti-collision block lug, and the inner block is installed in the inner groove of the retaining sleeve of the retaining sleeve; the adjacent sharp corners are respectively installed with the inner plate through the end shaft and the anti-collision block lug, and are nested in The top shaft side sleeves of the corresponding inner sleeves are connected together by the top shaft, and the top shaft side sleeves of the two sleeves are distributed On both sides of the shaft, a top shaft middle rotation sleeve is installed in the middle of the top shaft, and one side baffle is installed at both ends of the top shaft; the adjustment mechanism is installed between the two side plates and has an adjustment mechanism between two adjacent sharp corners The crawler belt matched with the casing is connected by a plurality of crawler chains through a rotating shaft, the lower side of the crawler chain has a chain slope and does not penetrate to the upper side of the crawler chain, and the chain beveled side of the chain has a chain top, the crawler chain The top ends of the two sides have a top surface of the chain.

The adjusting mechanism comprises a fixing column, a first spring, a scroll spring, a card board, a rotating mechanism, an S-shaped lever, a pressure plate, a leaf spring, a leaf spring support, a card board rod, an outer fixing block, a sliding shaft, a notch, and an inner portion. The fixing block, the pressing plate, the front stroke guide, the first track block, the rear stroke guide surface, the second track block, the rear stroke stop surface, wherein the fixing column is mounted on one side of the side plate, and one end of the sliding shaft is mounted on On the fixing column, the S-shaped lever slides on the sliding shaft through the shaft hole, and the rotating mechanism is installed at the shaft hole of the S-shaped lever; the first spring is nested on the sliding shaft and one end is connected with the fixing column, and the other end is connected with the rotating mechanism; The scroll spring is nested outside the first spring, and the outer end of the scroll spring is mounted on the side of the S-shaped lever through the outer fixing block, and the inner end of the scroll spring is mounted on the fixed column through the inner fixing block; the top end of the pressure plate and the top shaft are rotated The connecting end, the bottom end of the pressure plate is installed with a pressure plate, the bottom end of the pressure plate is provided with a pressure plate, the pressure plate passes through the pressure channel; the card passes through the card channel, the card plate A card lever is mounted on the lower end, and a leaf spring is mounted on the lower end of the card lever Supporting; one end of the leaf spring is mounted on the side of the card passage hole on the inner side of the casing, and the other end is mounted on the leaf spring support; the pressing plate rod is in contact with the S-shaped lever concave surface, and the card plate rod is in contact with the S-shaped lever convex surface; The side of the lever with the card has a notch at one side facing the fixing post; the first track block and the second track block are mounted on the concave surface of the S-shaped lever, and the first track block has a front stroke guide away from the side of the fixed column a side surface having a rear stroke guide surface facing the fixed column, the second track block facing the first track block side having a rear stroke stop surface; the pressing plate rod being at the front stroke guide surface, the rear stroke guide surface and the rear stroke stop surface Swipe between.

The sharp corner of the casing cooperates with the inclined surface of the chain, and the card passes through the card passage and passes through the top of the chain, and the top surface of the chain cooperates with the retaining sleeve, the top shaft and the inner panel.

As a further improvement of the present technology, the rotating mechanism includes a first annular sleeve, a second annular sleeve, a third annular sleeve, a first inner ring, and a second inner ring, wherein the S-shaped lever shaft hole passes through An inner ring is mounted with a second inner ring; the first ring sleeve slides on the sliding shaft and a third ring sleeve is mounted through the second ring sleeve; the first inner ring and the second inner ring are mounted on The cavity formed by the first annular sleeve, the second annular sleeve and the third annular sleeve is specifically matched with one side of the first annular sleeve and one side of the second inner annular ring, and the second annular sleeve is The rim surface is in contact with the outer surface of the second inner ring, and one side of the third annular sleeve is in contact with the other side of the second inner ring, and the inner surface of the third annular sleeve is in surface contact with the outer surface of the first inner ring.

As a further improvement of the present technology, the two anti-collision block lugs mounted on the end shafts are mounted offset from each other.

The first spring described above can be compressed or stretched.

As a further improvement of the present technology, the angle of the apex angle of the casing is between 50 degrees and 65 degrees. Meaning an angle.

Compared with the conventional track driving technology, the crawler belt of the present invention is connected by the track chain through the rotating shaft, and the corner of the casing is caught in the chain slope of the track chain to drive the track to rotate, and the principle is similar to the principle of the conventional track and the driving wheel; The body corner and the adjacent sharp corner are covered by the retaining sleeve, the inner panel and the side baffle to prevent the general weed or the wrap object from being wound around the sharp corner of the driving wheel, thereby causing the crawler wheel to fail; Passability.

The rotation of the drive wheel housing will drive the track movement through the sharp corner. After the corner of the housing contacts the track, the top surface of the chain of the track chain exerts a downward force on the cover, the top shaft and the inner plate, and then the top axial direction Moving, at the same time driving the telescopic body composed of the baffle and the inner plate to rotate around the end shaft, and the top shaft drives the side baffle to swing downward, so that the sharp corner completely leaks out and protrudes into the chain bevel in the track chain; Acts with the chain bevel to drive the chain. In order to block the sharp corners in the design, a structure such as a retaining sleeve is used, in which the inner panel can slide in the retaining sleeve, which belongs to the telescopic structure, and the distance between the top shaft and the end shaft in the lower axial movement. Will increase, this increase in distance is compensated by the extension of the inner panel from the retaining sleeve; the total length of the inner panel in the retaining sleeve is 1/2 of the total length of the retaining inner panel completely extending the retaining sleeve, and completely When the protrusion is extended, the top shaft should be at the bottom end of the groove between the sharp corner and the sharp corner. The retaining sleeve and the inner panel are in contact with the sharp bevel, which requires that the distance between the adjacent sharp corners is larger than the sharp bevel. The length of 1/2; theoretical calculations show that the angle of apex angle of 50-65 degrees can meet the above structural requirements. The sharp corner angle in the present invention is much larger than that of the conventional driving wheel, which causes the casing to fall off when the crawler belt is driven, so that an adjustment mechanism is added to the design. The adjusting mechanism uses the downward movement of the top shaft to obtain power, and relies on the power to push the card out from the card passage at the top end of the pointed corner, and the ejected card board cooperates with the chain top of the track chain to prevent the drive from falling off. In the adjusting mechanism, the S-shaped lever can rotate around the sliding shaft and can move along the axis of the sliding shaft, compressing the first spring during movement, the first spring has a reset function for the S-shaped lever, the rotating scroll spring, the scroll spring The S-type lever also has a reset function; because the rotation of the S-type lever causes the first spring to rotate, and the rotation of the first spring destroys the compression performance of the first spring, a rotating mechanism is designed to eliminate the S-type lever rotational motion. The effect on the first spring; the same S-type lever movement will drive the scroll spring to move, so the designed inner fixed block can move laterally with the scroll spring, but does not affect the compression of the scroll spring. The rotation of the S-shaped lever and the movement of the first spring in the rotational direction are blocked by the sliding of the first annular sleeve and the second inner ring in the rotating mechanism. The S-type lever is designed to have an S-shaped lever because the distance between the pressure plate and the card plate pressed by the top shaft is small, but the amplitude of the up-and-down motion is large, in which case both It is impossible to transfer the linear lever on the lower side, which is easy to cause the lever to come off with the pressure plate and the card. Therefore, the S-type lever can be designed to prevent falling off and ensure smooth transmission. The top shaft middle rotation sleeve in the middle of the top shaft is connected with the pressure plate, and the movement of the top shaft drives the pressure plate to move; when the top axial direction moves downward, the pressure plate is driven to move downward, and the pressure plate applies the concave surface to the S-shaped lever surface. Under the force, the S-shaped lever rotates around the sliding axis, and the S-shaped lever convex surface will jack up the card board, and the card board passes through the card channel upwards, and at the same time compresses the leaf spring, and the leaf spring is designed to reset the card board. During the S-type lever rotary motion, the initial pressure plate is located on the front stroke guide surface. At this time, the card lever is located on the convex surface of the S-shaped lever and is located at the edge of the notch but does not completely fall off the notch. The first spring is naturally telescopic. State; then, as the S-shaped lever rotates, the pressing plate rod moves along the front stroke guiding surface away from the sliding axis direction; the pressing plate rod applies a force facing the fixed column direction through the front stroke guide facing the S-shaped lever, and A spring is compressed, and the card lever moves away from the notch position on the convex surface of the S-shaped lever to ensure that the card can be smoothly jacked up by the S-type lever. When the S-shaped lever is rotated to the design position, the pressing plate rod will be disengaged from the end of the first track block away from the sliding axis, and the second track block is in collision contact with the first spring resetting action, and the S-type lever is A large displacement occurs in the direction away from the fixed column, so that the card lever completely falls off the S-shaped lever and enters the notch, and the card loses the role of the S-shaped lever top, and the movement is reset in time by the leaf spring to prevent The top of the card is not separated from the top of the chain and interferes with the deviation of the track chain from the sharp corner; at the design position of the S-type lever, the pressure plate is completely dropped so that the sharp corner is completely caught in the track chain, and the card protrudes to the position at this position In the top of the chain and to ensure that the sharp corners do not fall off the track chain. When the S-shaped lever rotates past the design position, it starts to rotate in the opposite direction under the action of the scroll spring. During this process, the pressing plate rod moves along the rear stroke guide surface and the rear stroke stop toward the sliding axis. During the movement, the S-type lever continues to move away from the fixed column, and the first spring is stretched. When the S-shaped lever is rotated to the original position, the pressure plate is completely ejected and the card is fully retracted, and the plate is moved. After the first track block faces one end of the sliding shaft, under the action of the first spring, the pressing plate rod quickly crosses from the end of the first track block facing the sliding axis to the front stroke guide surface of the first track block, that is, one is completed. cycle. The two anti-collision block lugs on the same end shaft are designed to provide two swivel sleeve rotations using one rotating shaft. The top shaft drives the side baffle to rotate, and the side baffle moves to the lower side of the sharp side, and no interference occurs between the side baffles. The invention uses the driving wheel for shielding the sharp corners, can prevent the general weeds or the entangled objects from being wound around the sharp corners on the driving wheel, causing the failure of the track wheel, improving the passability of the track wheel, and having better practical effects. .

DRAWINGS

Figure 1 is a schematic view of the overall component distribution.

2 is a schematic view of a related shielding structure such as a retaining sleeve.

Figure 3 is a schematic view of the structure of the housing.

Figure 4 is a schematic view showing the structure of the adjustment mechanism.

Figure 5 is a schematic view showing the installation of the S-type lever and the rotating mechanism.

Figure 6 is a schematic view of the structure of the S-type lever.

Figure 7 is a schematic view of the installation of the scroll spring.

Figure 8 is a schematic view showing the installation of the retaining sleeve and the inner panel.

Figure 9 is a schematic view of the structure of the retaining sleeve.

Figure 10 is a schematic view showing the structure of the inner panel.

Figure 11 is a schematic view showing the installation of the pressure plate.

Figure 12 is a schematic view of the action of the track chain and the sharp corners.

Figure 13 is a schematic view of the installation of the annular sleeve.

Names in the figure: 1, side plate, 2, housing, 4, retaining sleeve, 5, adjustment mechanism, 6, card channel, 7, side baffle, 8, top shaft, 9, top shaft side swivel sleeve, 10 , top shaft intermediate sleeve, 11, anti-collision block, 12, pressure channel, 13, end shaft, 14, end lug, 15, fixed column, 16, first spring, 17, scroll spring, 18, card board 19, rotating mechanism, 20, S-type lever, 21, pressure plate, 49, leaf spring, 50, leaf spring support, 51, card board, 52, first ring sleeve, 53, outer fixed block, 54 , second ring sleeve, 55, sliding shaft, 56, third ring sleeve, 57, first inner ring, 58, second inner ring, 59, notch, 60, inner fixed block, 61, anti-collision Block lugs, 62, inner sleeves, 63, inner plates, 64, pressure plate, 65, track chain, 66, chain bevel, 67, chain top, 68, pressure plate, 70, Front stroke guide surface 71, first track block, 72, rear stroke guide surface 73, second track block, 74, rear stroke stop surface.

detailed description

As shown in Figures 1, 2, and 12, it includes a side plate, a casing, a retaining sleeve, an adjustment mechanism, a card passage, a side baffle, a top shaft, a top shaft side swivel sleeve, a top shaft intermediate sleeve, an anti-collision block, and a caster. Pressure channel, end shaft, end lug, anti-collision lug, inner shroud, inner shroud, track chain, chain bevel, chain top, chain top, as shown in Figure 1, 3, in the figure Only a pair of two adjacent sharp corners are given, the structure is distributed between all the sharp corners and the adjacent sharp corners; the shell is hollow in the middle, and the outer edge is uniformly distributed with a plurality of sharp corners in the circumferential direction; Side plates are respectively installed on both sides of the body, as shown in FIG. 2, and both ends of the sharp-pointed end are installed with one end through one end lug. The shaft, the groove between the sharp corner and the adjacent sharp corner has a pressure passage, and the top end of the pointed corner has a card passage; as shown in FIG. 9, the end of the sleeve is provided with a groove inner groove, as shown in FIG. 2, the top shaft The side turn sleeve is installed on the side of the end of the retaining sleeve that has no opening. As shown in FIG. 10, the two sides of one end of the inner panel are respectively equipped with anti-collision block lugs through the anti-collision block, as shown in FIG. Installed in the inner groove of the retaining sleeve of the retaining sleeve; as shown in Fig. 2, the adjacent sharp corners are respectively provided with a retaining inner plate through the end shaft and the anti-collision block lug, and nested on the top of the corresponding inner retaining plate The shaft side rotating sleeves are connected together by the top shaft, the top shaft side rotating sleeves of the two shielding sleeves are distributed on both sides of the top shaft, the top shaft middle rotating sleeve is installed in the middle of the top shaft, and one side baffle is installed at both ends of the top shaft; The adjusting mechanism is installed between the two side plates and has an adjusting mechanism between the two adjacent sharp corners; as shown in FIG. 12, the crawler belt matched with the housing is connected by a plurality of crawler chains through the rotating shaft, and the middle of the crawler chain The lower side has a chain bevel and does not penetrate to the upper side of the track chain, and the track chain has a chain top on the inclined side of the chain, the track Article chain having a top surface on both sides of the lower end.

As shown in FIG. 4, the adjusting mechanism includes a fixing post, a first spring, a scroll spring, a card board, a rotating mechanism, an S-shaped lever, a pressure plate, a trigger mechanism, a leaf spring, a leaf spring support, a card board rod, and an outer Fixed block, sliding shaft, notch, inner fixed block, pressing plate rod, front stroke guide surface, first track block, rear stroke guide surface, second track block, rear stroke block surface, as shown in FIGS. 5 and 7 The fixing column is mounted on one side of the side plate, one end of the sliding shaft is mounted on the fixing column, the S-shaped lever slides on the sliding shaft through the shaft hole, and the rotating mechanism is installed at the shaft hole of the S-shaped lever; as shown in FIG. The first spring is nested on the sliding shaft and has one end connected to the fixed column, and the other end is connected with the rotating mechanism; as shown in FIG. 7, the scroll spring is nested outside the first spring, and the outer end of the scroll spring is installed through the outer fixing block. On the side of the S-shaped lever, the inner end of the scroll spring is mounted on the fixed column through the inner fixing block; as shown in FIG. 11, the top end of the pressure plate is connected with the top shaft intermediate sleeve, and the bottom ends of the pressure plate are respectively installed with the application. The pressure plate board is provided with a pressure plate rod at the bottom end of the pressure plate, as shown in FIG. Through the pressure passage; as shown in Figures 1 and 4, the card passes through the card passage, and the lower end of the card plate is mounted with a card bar, and the lower end of the card bar is mounted with a leaf spring support; one end of the leaf spring is mounted on the inner side of the casing The other side of the cartoon hole is mounted on the leaf spring support; as shown in FIG. 4, the pressing plate rod is in contact with the S-shaped lever concave surface, and the clamping plate rod is in contact with the S-shaped lever convex surface; as shown in FIG. a side of the S-shaped lever that engages with the card board and has a notch at a side facing the fixing post; the first track block and the second track block are mounted on the concave surface of the S-shaped lever, and the first track block has a front stroke away from the side of the fixed column The guide surface has a rear stroke guide surface facing the fixed column side, and the second track block has a rear stroke surface facing the first track block side; the pressing plate rod is at the front stroke guide surface, the rear stroke guide surface and the rear stroke guide surface Swipe between.

As shown in FIG. 12, the sharp corner of the casing cooperates with the inclined surface of the chain, and the card passes through the chain after passing through the card passage. The top of the chain, the top surface of the chain cooperates with the retaining sleeve, the top shaft and the inner panel.

As shown in FIGS. 5, 6, and 13, the rotating mechanism includes a first annular sleeve, a second annular sleeve, a third annular sleeve, a first inner ring, and a second inner ring, wherein the S-shaped lever shaft hole a second inner ring is mounted through the first inner ring; the first ring sleeve slides on the sliding shaft and the third ring sleeve is mounted through the second ring sleeve; the first inner ring and the second inner circle The ring is installed in a cavity formed by the first annular sleeve, the second annular sleeve and the third annular sleeve, and the first ring sleeve is partially in contact with the second inner ring side, and the second circle is The inner edge surface of the ring sleeve is in contact with the outer surface of the second inner ring, the side of the third annular ring is in contact with the other side of the second inner ring, and the inner surface of the third annular ring and the outer edge of the first inner ring Face contact.

As shown in FIG. 2, the two anti-collision block lugs mounted on the end shafts are mounted offset from each other.

The angle of the apex angle of the casing is any angle between 50 degrees and 65 degrees.

In summary, in the present invention, the crawler belts are connected by the track chain through the rotating shaft, and the corners of the casing are caught in the chain slope of the track chain to drive the track to rotate. The principle is similar to the principle of the conventional track and the driving wheel; Covering with the adjacent sharp corners through the retaining sleeve, the inner panel and the side baffle to prevent the general weeds or wraps from being wound around the sharp corners on the driving wheel, causing the failure of the crawler wheel; improving the passage of the crawler wheel Sex.

The rotation of the drive wheel housing will drive the track movement through the sharp corner. After the corner of the housing contacts the track, the top surface of the chain of the track chain exerts a downward force on the cover, the top shaft and the inner plate, and then the top axial direction Moving, at the same time driving the telescopic body composed of the baffle and the inner plate to rotate around the end shaft, and the top shaft drives the side baffle to swing downward, so that the sharp corner completely leaks out and protrudes into the chain bevel in the track chain; Acts with the chain bevel to drive the chain. In order to block the sharp corners in the design, a structure such as a retaining sleeve is used, in which the inner panel can slide in the retaining sleeve, which belongs to the telescopic structure, and the distance between the top shaft and the end shaft in the lower axial movement. Will increase, this increase in distance is compensated by the extension of the inner panel from the retaining sleeve; the total length of the inner panel in the retaining sleeve is 1/2 of the total length of the retaining inner panel completely extending the retaining sleeve, and completely When the protrusion is extended, the top shaft should be at the bottom end of the groove between the sharp corner and the sharp corner. The retaining sleeve and the inner panel are in contact with the sharp bevel, which requires that the distance between the adjacent sharp corners is larger than the sharp bevel. The length of 1/2; theoretical calculations show that the angle of apex angle of 50-65 degrees can meet the above structural requirements. The sharp corner angle in the present invention is much larger than that of the conventional driving wheel, which causes the casing to fall off when the crawler belt is driven, so that an adjustment mechanism is added to the design. The adjusting mechanism uses the downward movement of the top shaft to obtain power, and relies on the power to push the card out from the card passage at the top end of the pointed corner, and the ejected card board cooperates with the chain top of the track chain to prevent the drive from falling off. In the adjustment mechanism, the S-shaped lever can rotate around the sliding axis and move along the axis of the sliding axis. The first spring is compressed in motion, the first spring has a reset function on the S-type lever, and the rotary scroll spring is compressed, and the scroll spring also has a reset function for the S-type lever; since the first spring is driven by the rotary motion of the S-type lever Rotation, the rotation of the first spring destroys the compression performance of the first spring, so a rotating mechanism is designed to eliminate the influence of the S-shaped lever rotational motion on the first spring; likewise, the S-shaped lever movement will drive the scroll spring to move, so the design The inner fixed block can move laterally with the scroll spring, but does not affect the compression of the scroll spring. As shown in FIG. 5, the rotation of the first ring sleeve and the second inner ring is used to isolate the rotation of the S-type lever and the movement of the first spring in the rotational direction. The S-type lever is designed to have an S-shaped lever because the distance between the pressure plate and the card plate pressed by the top shaft is small, but the amplitude of the up-and-down motion is large. In this case, a straight line is installed on the lower side of the both sides. It is impossible to transmit the lever, which is easy to cause the lever and the pressure plate and the card to fall off. Therefore, the S-type lever is designed to prevent falling off and ensure smooth transmission. The top shaft middle rotation sleeve in the middle of the top shaft is connected with the pressure plate, and the movement of the top shaft drives the pressure plate to move; when the top axial direction moves downward, the pressure plate is driven to move downward, and the pressure plate applies the concave surface to the S-shaped lever surface. The lower force, the S-shaped lever rotates around the sliding axis. As shown in Fig. 4, the S-shaped lever convex surface will jack up the card board, and the card plate will pass through the card channel upwards, and at the same time compress the leaf spring, the leaf spring design is reset. The role of the card board. During the S-type lever rotary motion, the initial pressure plate is located on the front stroke guide surface. At this time, the card lever is located on the convex surface of the S-shaped lever and is located at the edge of the notch but does not completely fall off the notch. The first spring is naturally telescopic. State; then, as the S-shaped lever rotates, the pressing plate rod moves along the front stroke guiding surface away from the sliding axis direction; the pressing plate rod applies a force facing the fixed column direction through the front stroke guide facing the S-shaped lever, and A spring is compressed, and the card lever moves away from the notch position on the convex surface of the S-shaped lever to ensure that the card can be smoothly jacked up by the S-type lever. When the S-shaped lever is rotated to the design position, the pressing plate rod will be disengaged from the end of the first track block away from the sliding axis, and the second track block is in collision contact with the first spring resetting action, and the S-type lever is A large displacement occurs in the direction away from the fixed column, so that the card lever completely falls off the S-shaped lever and enters the notch, and the card loses the role of the S-shaped lever top, and the movement is reset in time by the leaf spring to prevent The top of the card is not separated from the top of the chain and interferes with the deviation of the track chain from the sharp corner; at the design position of the S-type lever, the pressure plate is completely dropped so that the sharp corner is completely caught in the track chain, and the card protrudes to the position at this position In the top of the chain and to ensure that the sharp corners do not fall off the track chain. When the S-shaped lever rotates past the design position, it starts to rotate in the opposite direction under the action of the scroll spring. During this process, the pressing plate rod moves along the rear stroke guide surface and the rear stroke stop toward the sliding axis. During the movement, the S-type lever continues to move away from the fixed column, and the first spring is stretched. When the S-shaped lever is rotated to the original position, the pressure plate is completely ejected and the card is fully retracted. After moving to the end of the first track block facing the sliding shaft, under the action of the first spring, the pressing plate rod quickly jumps from the end of the first track block facing the sliding axis to the front travel guide surface of the first track block, that is, the completion is completed. A loop. The design of the top-shaft side swivel sleeves on both sides of the same top shaft, the same end shafts are staggered from each other, and the two anti-collision block lugs are designed to provide two swivel sleeve rotations by using one rotating shaft. The top shaft drives the side baffle to rotate, and the side baffle moves to the lower side of the sharp side, and no interference occurs between the side baffles. The invention uses the driving wheel for shielding the sharp corners, can prevent the general weeds or the entangled objects from being wound around the sharp corners on the driving wheel, causing the failure of the track wheel, improving the passability of the track wheel, and having better practical effects. .

Claims

Anti-winding crawler drive wheel with track block, characterized in that it comprises side plate, shell, retaining sleeve, adjusting mechanism, card passage, side baffle, top shaft, top shaft side swivel sleeve, top shaft middle sleeve , anti-collision block, pressure channel, end shaft, end lug, anti-collision lug, inner shroud, inner shroud, track chain, chain bevel, chain top, chain top, wherein the middle of the casing Hollow, the outer edge is uniformly distributed with a plurality of sharp corners in the circumferential direction; side plates are respectively installed on both sides of the shell, and both ends of the sharp-pointed end are mounted with an end shaft through an end lug, and between the sharp corner and the adjacent sharp corner The groove has a pressure passage, and the top end of the corner has a card passage; the end of the sleeve is provided with a groove inner groove, and the top shaft side sleeve is mounted on one side of the end of the sleeve without the opening, and the two sides of the end plate are respectively The anti-collision block is mounted with the anti-collision block lug, and the inner block is installed in the inner groove of the retaining sleeve of the retaining sleeve; the adjacent sharp corners are respectively installed with the inner plate through the end shaft and the anti-collision block lug, and are nested in The top shaft side sleeves of the corresponding inner sleeves are connected together by the top shaft, and the top shaft side sleeves of the two sleeves are distributed On both sides of the shaft, a top shaft middle rotation sleeve is installed in the middle of the top shaft, and one side baffle is installed at both ends of the top shaft; the adjustment mechanism is installed between the two side plates and has an adjustment mechanism between two adjacent sharp corners The crawler belt matched with the casing is connected by a plurality of crawler chains through a rotating shaft, the lower side of the crawler chain has a chain slope and does not penetrate to the upper side of the crawler chain, and the chain beveled side of the chain has a chain top, the crawler chain The top ends of the two sides have a top surface of the chain;

The adjusting mechanism comprises a fixing column, a first spring, a scroll spring, a card board, a rotating mechanism, an S-shaped lever, a pressure plate, a leaf spring, a leaf spring support, a card board rod, an outer fixing block, a sliding shaft, a notch, and an inner portion. The fixing block, the pressing plate, the front stroke guide, the first track block, the rear stroke guide surface, the second track block, the rear stroke stop surface, wherein the fixing column is mounted on one side of the side plate, and one end of the sliding shaft is mounted on On the fixing column, the S-shaped lever slides on the sliding shaft through the shaft hole, and the rotating mechanism is installed at the shaft hole of the S-shaped lever; the first spring is nested on the sliding shaft and one end is connected with the fixing column, and the other end is connected with the rotating mechanism; The scroll spring is nested outside the first spring, and the outer end of the scroll spring is mounted on the side of the S-shaped lever through the outer fixing block, and the inner end of the scroll spring is mounted on the fixed column through the inner fixing block; the top end of the pressure plate and the top shaft are rotated The connecting end, the bottom end of the pressure plate is installed with a pressure plate, the bottom end of the pressure plate is provided with a pressure plate, the pressure plate passes through the pressure channel; the card passes through the card channel, the card plate A card lever is mounted on the lower end, and a leaf spring is mounted on the lower end of the card lever Supporting; one end of the leaf spring is mounted on the side of the card passage hole on the inner side of the casing, and the other end is mounted on the leaf spring support; the pressing plate rod is in contact with the S-shaped lever concave surface, and the card plate rod is in contact with the S-shaped lever convex surface; The side of the lever with the card has a notch at one side facing the fixing post; the first track block and the second track block are mounted on the concave surface of the S-shaped lever, and the first track block has a front stroke guide away from the side of the fixed column a side surface having a rear stroke guide surface facing the fixed column, the second track block facing the first track block side having a rear stroke stop surface; the pressing plate rod at the front stroke guide surface and the rear stroke guide surface Sliding between the rear stroke surface;

The sharp corner of the casing cooperates with the inclined surface of the chain, and the card passes through the card passage and passes through the top of the chain, and the top surface of the chain cooperates with the retaining sleeve, the top shaft and the inner panel.
The anti-winding crawler drive wheel with a track block according to claim 1, wherein the rotating mechanism comprises a first annular sleeve, a second annular sleeve, a third annular sleeve, and a first inner ring a second inner ring, wherein the S-shaped lever shaft hole is mounted with a second inner ring through the first inner ring; the first ring sleeve slides on the sliding shaft and the third ring is mounted through the second ring sleeve a first inner ring and a second inner ring are mounted in a cavity formed by the first annular sleeve, the second annular sleeve and the third annular sleeve, and are specifically matched to the first annular sleeve side Contacting one side of the second inner ring, the inner surface of the second annular ring is in surface contact with the outer surface of the second inner ring, and the side of the third annular ring is in contact with the other side of the second inner ring, the third circle The inner surface of the collar is in surface contact with the outer surface of the first inner ring.
The anti-winding crawler drive wheel with a track block according to claim 1, wherein the two anti-collision block lugs mounted on the end shaft are offset from each other.
The anti-winding crawler drive wheel with a track block according to claim 1, wherein the angle of the apex angle of the casing is any angle between 50 degrees and 65 degrees.