Rubber track inner core iron for protecting track

Abstract

The utility model relates to the technical field of engineering machinery chassis tracks, in particular to a rubber track inner core iron for protecting a track, which comprises a core iron main body, two positioning bulges are arranged on the core iron main body, the two positioning bulges are clamped with the same convex tooth, the convex tooth is propped against the core iron main body, and two fixing bolts are arranged on the convex tooth in a penetrating manner. The fixing bolt is in threaded connection with the core iron main body, two clamping blocks are connected to the convex teeth in a sliding mode, clamping grooves are formed in the positioning protrusions, fillets are arranged on the edge of the core iron main body, and the core iron main body is wrapped with a rubber base body. The downward pressing gravity of the supporting wheel is dispersed by arranging the large round corners on the edge of the core iron body, so that the probability that the supporting wheel is damaged can be reduced, meanwhile, due to the detachable design of the convex teeth, when the supporting wheel is seriously abraded, only the supporting wheel needs to be replaced independently, overall replacement is not needed, and the cost is reduced. Therefore, the use cost is effectively saved.

Description

Technical Field

[0001] This utility model relates to a rubber track core iron, specifically a rubber track inner core iron for protecting the track, belonging to the field of engineering machinery chassis track technology. Background Technology

[0002] Rubber track rails are mainly composed of a rubber matrix and an inner core. During operation, the pressure from the support rollers is transmitted to the rubber matrix, and then from the rubber to the inner core. The core also has a toothed part in the middle for transmission. The toothed part can mesh with the drive wheel. When the drive wheel rotates, it can drive the toothed part to move, thereby realizing the transmission of power.

[0003] However, since the inner core is not a rigidly connected structure, the rubber between the support roller and the inner core is subjected to impact during operation. The radius of the inner core is generally small, forming sharp corners that can cause cutting. At the same time, the small radius itself causes stress concentration, making it easy for the rubber to peel off from the core under stress. This can lead to the core shaking, falling off, and wire breakage, resulting in permanent failure of the entire track. Furthermore, the teeth on the core are integrally molded with the core body, and the material is mostly ordinary steel. The teeth will frequently rub against the drive wheel, making them prone to wear. When the teeth are severely worn, the entire core or track needs to be replaced, which increases the cost of use. Utility Model Content

[0004] The purpose of this invention is to provide a rubber track inner core iron to protect the track in order to solve the above problems. By opening a large rounded corner at the edge of the core iron body, the gravity of the support wheel is dispersed, thereby reducing the probability of damage to the support wheel. At the same time, through the detachable design of the convex teeth, when they are severely worn, only the individual teeth need to be replaced, instead of replacing the whole thing, thus effectively saving the cost of use.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a rubber track inner core iron for protecting the track, comprising a core iron body, two positioning protrusions on the core iron body, the two positioning protrusions engaging with the same tooth, the tooth abutting against the core iron body, two fixing bolts penetrating the tooth, the fixing bolts being threadedly connected to the core iron body, two locking blocks slidably connected to the tooth, the positioning protrusions having locking grooves, one end of the locking block engaging with an adjacent locking groove, the other end of the locking block abutting against the two fixing bolts, the edge of the core iron body having rounded corners, and the outside of the core iron body being wrapped with a rubber matrix.

[0006] Preferably, the positioning protrusion and the core iron body are an integral structure, the cross-section of the positioning protrusion is trapezoidal, and the two positioning protrusions are symmetrically distributed about the middle of the core iron body.

[0007] Preferably, the cross-section of the end of the card block is trapezoidal, and the cross-section of the end of the card slot is trapezoidal.

[0008] Preferably, the two fixing bolts are symmetrically distributed about the middle of the protruding teeth, and the cross-section of the bottom end of the fixing bolts is trapezoidal.

[0009] Preferably, the core iron body is made of ordinary steel, and the protruding teeth are made of wear-resistant alloy.

[0010] Preferably, two protective covers are engaged on the protruding teeth, and multiple limiting blocks are fixedly connected to the protective covers. The protruding teeth are provided with two annular grooves, and the multiple limiting blocks located on the same protective cover are engaged with the adjacent annular grooves.

[0011] Preferably, the top surface of the core iron body is provided with two recesses, and two protrusions are fixedly connected to the core iron body, with the protrusions and the core iron body forming an integral structure.

[0012] Preferably, the bottom end of the core iron body is provided with multiple protrusions, the protrusions and the core iron body are an integral structure, and the multiple adjacent protrusions are linearly and equidistantly distributed.

[0013] Preferably, the rubber matrix has an internal reinforcing layer, which is composed of multiple strands of steel wire rope.

[0014] The beneficial effects of this utility model are as follows: By opening a large rounded corner at the edge of the core iron body, the gravity of the supporting wheel is dispersed, thereby reducing the probability of damage to the core iron body. At the same time, through the detachable design of the convex tooth, when it is severely worn, only the individual tooth needs to be replaced instead of the whole body, thus effectively saving the cost of use. During the installation of the convex tooth, the two positioning protrusions engage with the convex tooth to achieve initial positioning of the convex tooth. Then, the fixing bolt is inserted into the inside of the convex tooth. As the fixing bolt passes through the convex tooth, it will abut against the locking block and move towards the locking groove, thereby engaging the locking block and the locking groove to achieve further positioning of the convex tooth, effectively improving the firmness of the convex tooth after installation. Finally, tightening the two fixing bolts in sequence completes the installation of the convex tooth, and vice versa to disassemble the convex tooth. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2This is a schematic diagram of the connection structure between the core iron body and the protruding teeth of this utility model.

[0017] Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A.

[0018] Figure 4 for Figure 3 The diagram shown is an enlarged view of the structure of section B.

[0019] Figure 5 This is a schematic diagram of the connection structure between the protruding tooth and the locking block of this utility model.

[0020] Figure 6 This is a schematic diagram of the connection structure between the positioning protrusion and the slot of this utility model;

[0021] Figure 7 This is a schematic diagram of the connection structure between the protective cover and the limiting block of this utility model;

[0022] Figure 8 This is a schematic diagram of the connection structure between the rubber matrix and the core iron body of this utility model.

[0023] In the diagram: 1. Core iron body; 2. Positioning protrusion; 3. Protruding tooth; 4. Fixing bolt; 5. Protective cover; 6. Limiting block; 7. Ring groove; 8. Locking block; 9. Locking groove; 10. Rounded corner; 11. Protruding strip; 12. Protrusion; 13. Recessed part; 14. Rubber matrix; 15. Reinforcing layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-8 As shown, a rubber track inner core for protecting the track includes a core body 1. The core body 1 has two positioning protrusions 2, which engage with the same tooth 3. The tooth 3 abuts against the core body 1. Two fixing bolts 4 pass through the tooth 3 and are threadedly connected to the core body 1. Two locking blocks 8 are slidably connected to the tooth 3. The positioning protrusions 2 have locking grooves 9. One end of the locking block 8 engages with the adjacent locking groove 9, and the other end of the locking block 8 abuts against the two fixing bolts 4. The edge of the core body 1 has rounded corners 10, and the core body 1 is wrapped with a rubber matrix 14.

[0026] As a technical optimization of this utility model, the positioning protrusion 2 and the core iron body 1 are an integral structure. The cross-section of the positioning protrusion 2 is trapezoidal. The two positioning protrusions 2 are symmetrically distributed about the middle of the core iron body 1. When installing the tooth 3, it can be positioned by the two positioning protrusions 2. After the tooth 3 is installed, the firmness of the tooth 3 after installation can be improved by the engagement between the two positioning protrusions 2 and the tooth 3.

[0027] As a technical optimization of this utility model, the cross-section of the end of the locking block 8 is trapezoidal, which can play a guiding role when the locking block 8 and the slot 9 are engaged. During the disassembly of the protruding tooth 3, because the cross-section of the end of the locking block 8 is trapezoidal, when the fixing bolt 4 is removed and the protruding tooth 3 moves, the positioning protrusion 2 will automatically abut against the locking block 8 and slide inside the protruding tooth 3, thereby facilitating the disassembly of the protruding tooth 3. The cross-section of the end of the slot 9 is trapezoidal, so when the end of the locking block 8 is fully engaged in the slot 9, the locking block 8 and the interior of the positioning protrusion 2 can fit together, thereby increasing the contact surface between the two and improving the firmness of the connection.

[0028] As a technical optimization of this utility model, the two fixing bolts 4 are symmetrically distributed about the middle of the protruding tooth 3. By setting two fixing bolts 4, the firmness of the protruding tooth 3 after installation can be improved. The cross-section of the bottom end of the fixing bolt 4 is trapezoidal, so it can play a role in guiding the movement when the fixing bolt 4 passes through the protruding tooth 3.

[0029] As a technical optimization of this utility model, the core iron body 1 is made of ordinary steel, which can save costs. The convex tooth 3 is made of wear-resistant alloy, which can improve the wear resistance of the convex tooth 3 and reduce the probability of damage.

[0030] As a technical optimization of this utility model, two protective covers 5 are engaged on the protruding tooth 3, so the groove at the end of the fixing bolt 4 can be blocked by the protective cover 5 to prevent dust and mud from clogging the groove. Multiple limiting blocks 6 are fixedly connected to the protective cover 5, and two annular grooves 7 are provided on the protruding tooth 3. Multiple limiting blocks 6 located on the same protective cover 5 are engaged with adjacent annular grooves 7, so the protective cover 5 can be fixed.

[0031] As a technical optimization of this utility model, the top surface of the core iron body 1 is provided with two recessed portions 13. By providing two recessed portions 13, the firmness of the left and right connection between the core iron body 1 and the rubber matrix 14 can be increased. Two protrusions 12 are fixedly connected to the core iron body 1. The protrusions 12 and the core iron body 1 are integrally structured. The bottom end of the core iron body 1 is provided with multiple protruding strips 11. The protruding strips 11 and the core iron body 1 are integrally structured. The multiple protruding strips 11 are linearly and equidistantly distributed. By providing multiple protruding strips 11 and two protrusions 12, the firmness of the front and rear connection between the core iron body 1 and the rubber matrix 14 can be increased. By providing a reinforcing layer 15, the overall strength of the rubber matrix 14 can be improved. The interior of the rubber matrix 14 is provided with a reinforcing layer 15, which is composed of multiple strands of steel wire rope.

[0032] In use, this invention uses a large rounded corner 10 at the edge of the core iron body 1 to disperse the downward pressure of the support wheel, thereby reducing the probability of damage to the core iron body 1. Simultaneously, the detachable design of the protruding tooth 3 allows for individual replacement when it becomes severely worn, eliminating the need for overall replacement and effectively saving on operating costs. During installation, the two positioning protrusions 2 engage with the protruding tooth 3, achieving initial positioning. Then, the fixing bolt 4 is inserted into the protruding tooth 3. As the fixing bolt 4 penetrates the protruding tooth 3, it abuts against the locking block 8, moving towards the locking groove 9 and engaging with it, further positioning the protruding tooth 3 and effectively improving its installation stability. Finally, tightening the two fixing bolts 4 sequentially completes the installation of the protruding tooth 3; conversely, loosening them allows for disassembly. After the bolt 4 is tightened, the protective cover 5 can be inserted into the protrusion 3. Since the multiple limiting blocks 6 on the protective cover 5 are made of elastic plastic, the multiple limiting blocks 6 will undergo elastic deformation after contacting the protrusion 3. When one side of the protective cover 5 contacts the protrusion 3, the multiple limiting blocks 6 will be inserted into the interior of the adjacent annular groove 7, thereby limiting the protective cover 5. When removing the protective cover 5, a screwdriver is needed to pry it off the protrusion 3. The protective cover 5 can cover the groove at the end of the fixing bolt 4, thereby preventing mud and sand from clogging the groove at the end of the fixing bolt 4, thus facilitating the removal of the fixing bolt 4. By setting two recesses 13, the firmness of the left and right connection between the core iron body 1 and the rubber substrate 14 can be increased. By setting multiple protrusions 11 and two protrusions 12, the firmness of the front and rear connection between the core iron body 1 and the rubber substrate 14 can be increased. By setting the reinforcing layer 15, the overall strength of the rubber substrate 14 can be improved.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rubber track inner core for protecting the track, comprising a core body (1), characterized in that: The core iron body (1) is provided with two positioning protrusions (2), which engage with the same tooth (3). The tooth (3) abuts against the core iron body (1). Two fixing bolts (4) are provided through the tooth (3). The fixing bolts (4) are threadedly connected to the core iron body (1). Two locking blocks (8) are slidably connected to the tooth (3). The positioning protrusions (2) are provided with slots (9). One end of the locking block (8) engages with the adjacent slot (9). The other end of the locking block (8) abuts against the two fixing bolts (4). The edge of the core iron body (1) is provided with rounded corners (10). The outside of the core iron body (1) is covered with a rubber matrix (14).

2. The rubber track inner core iron for protecting a rail according to claim 1, characterized in that: The positioning protrusion (2) and the core iron body (1) are an integral structure. The cross-section of the positioning protrusion (2) is trapezoidal, and the two positioning protrusions (2) are symmetrically distributed about the middle of the core iron body (1).

3. The rubber track inner core iron for protecting a rail according to claim 1, characterized in that: The cross-section of the end of the card block (8) is trapezoidal, and the cross-section of the end of the card slot (9) is trapezoidal.

4. The rubber track inner core iron for protecting a rail according to claim 1, characterized in that: The two fixing bolts (4) are symmetrically distributed about the middle of the protruding tooth (3), and the cross section of the bottom end of the fixing bolt (4) is trapezoidal.

5. The rubber track inner core iron for protecting a rail according to claim 1, characterized in that: The core iron body (1) is made of ordinary steel, and the protruding teeth (3) are made of wear-resistant alloy.

6. The rubber track inner core iron for protecting a rail according to claim 1, characterized in that: Two protective covers (5) are engaged on the protruding tooth (3). Multiple limiting blocks (6) are fixedly connected to the protective cover (5). Two annular grooves (7) are provided on the protruding tooth (3). Multiple limiting blocks (6) located on the same protective cover (5) are engaged with the adjacent annular grooves (7).

7. The rubber track inner core iron for protecting a rail according to claim 1, characterized in that: The top surface of the core iron body (1) is provided with two recesses (13), and two protrusions (12) are fixedly connected to the core iron body (1). The protrusions (12) and the core iron body (1) are an integral structure.

8. The rubber track inner core iron for protecting a rail according to claim 1, characterized in that: The bottom end of the core iron body (1) is provided with a plurality of protrusions (11), the protrusions (11) and the core iron body (1) are an integral structure, and the adjacent protrusions (11) are linearly and equidistantly distributed.

9. The rubber track inner core iron for protecting the track according to claim 1, characterized in that: The rubber matrix (14) has an internal reinforcing layer (15) which is composed of multiple strands of steel wire rope.

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