Bulldozer push shovel for coal mine

Abstract

The utility model discloses a bulldozer push shovel for a coal mine, which belongs to the technical field of bulldozers and comprises a bucket, a plurality of shovel teeth arranged at equal intervals are movably connected to one side of the bottom end of the bucket, a mounting cavity is formed in the bottom wall of the bucket, the shovel teeth are slidably connected in the mounting cavity, and first springs are fixedly connected between the shovel teeth and the mounting cavity. Knocking mechanisms are arranged on the front sides and the rear sides of the shovel teeth, one shovel tooth corresponds to one set of knocking mechanisms, receding holes are formed in the side wall of the shovel bucket and communicate with the mounting cavity, the shovel teeth move in the receding holes, and a front set of auxiliary supporting assemblies and a rear set of auxiliary supporting assemblies are symmetrically arranged in the receding holes. The shovel has the beneficial effects that after the shovel teeth are subjected to resistance and the first spring is compressed to a certain degree, the shovel teeth continue to contract into the mounting cavity, the shovel teeth are alternately knocked by the knocking mechanism from the front direction and the rear direction, vibration is generated by the shovel teeth, the vibration is conducted to external hard objects, the hard objects vibrate and loosen from surrounding soil, and therefore the shovel is protected. The bulldozer can continuously push conveniently.

Description

Technical Field

[0001] This utility model relates to the field of bulldozer technology, and in particular to a bulldozer blade for coal mines. Background Technology

[0002] With the continuous development of the open-pit coal mining industry in recent years, the requirements for mining efficiency have become increasingly higher. Bulldozers are needed in the process of coal mining, and the bucket is an important part of the bulldozer. The bucket is hinged to the bulldozer through a bracket, and the height of the bucket is adjusted by a hydraulic cylinder.

[0003] A search of Chinese Patent Publication No. CN221030372U reveals a pusher structure for an open-pit coal mine bulldozer, comprising a pusher and a support. The pusher has an internal mounting mechanism, and the support has an internal protective mechanism. The protective mechanism includes a protective component and a positioning component. The positioning component is located inside the protective component. The protective component includes a rotating shaft, which is fixedly installed inside the support. A protective plate is rotatably mounted on the outside of the rotating shaft. Two protrusions A are fixedly mounted on the right side of the support, and a rotating block is rotatably mounted inside protrusions A. Two sliders are slidably mounted inside the protective plate, and a spring A is fixedly mounted on the right side of the sliders. Fixed plates are fixedly mounted on both the front and back of the protective plate, and a spring B is fixedly mounted on the left side of the fixed plate. Spring B is stretched, providing auxiliary buffering for the protective plate and further reducing external forces.

[0004] However, when encountering stones embedded in the soil during construction, it may be difficult to move them quickly, which slows down the construction progress. Utility Model Content

[0005] The purpose of this utility model is to provide a bulldozer blade for coal mines in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A bulldozer blade for coal mines includes a bucket with several equally spaced blades movably connected to one side of the bottom end of the bucket. An installation cavity is provided in the bottom wall of the bucket, and the blades are slidably connected in the installation cavity. A first spring is fixedly connected between the blades and the installation cavity. A striking mechanism is provided on the front and rear sides of the blades, with one blade corresponding to one set of striking mechanisms. The striking mechanism is used to alternately strike the blades from the front and rear directions. An avoidance hole is provided on the side wall of the bucket, which communicates with the installation cavity. The blades move within the avoidance hole, and two sets of auxiliary support components are symmetrically arranged in the avoidance hole.

[0008] Preferably, the striking mechanism includes a first protrusion and a second protrusion fixedly connected to the front and rear sides of the shovel teeth. The first protrusion and the second protrusion are staggered. Two mounting plates are fixedly connected inside the mounting cavity. A sliding rod is slidably connected inside the mounting plate. A striking hammer is fixedly connected to one end of the sliding rod near the shovel teeth. The other end of the sliding rod extends out of the mounting plate and is fixedly connected to a limit block. A third spring is connected between the striking hammer and the mounting plate. The third spring is wrapped around the outer circumference of the sliding rod. The striking hammers on the front and rear mounting plates are staggered.

[0009] Preferably, a groove is provided at the bottom of the mounting cavity, and a slider is slidably connected in the groove, with the spade teeth fixedly connected to the top of the slider.

[0010] Preferably, the width of the slider is smaller than the width of the groove, and the width of the clearance hole is larger than the width of the spade teeth.

[0011] Preferably, the auxiliary support assembly includes a support roller rotatably connected within the clearance hole, with a shovel tooth located between the two support rollers and abutting against the support roller.

[0012] Preferably, the auxiliary support assembly further includes a second spring, one end of which is fixedly connected to the clearance hole, and the other end of which abuts against the spade teeth.

[0013] Preferably, the first protrusion, the second protrusion, and the striking hammer are all arc-shaped.

[0014] The beneficial effect is that when the shovel teeth encounter resistance and compress the first spring to a certain extent, the shovel teeth continue to retract into the mounting cavity. The striking mechanism alternately strikes the shovel teeth from both the front and rear directions, causing the shovel teeth to vibrate. These vibrations are transmitted to hard objects in the outside, causing the hard objects to vibrate and loosen the surrounding soil, making it easier for the bulldozer to continue pushing.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of a bulldozer blade for coal mines according to the present invention;

[0018] Figure 2 This is a front view of a bulldozer blade for coal mines as described in this utility model;

[0019] Figure 3This is a top view of the internal structure of the bulldozer blade for coal mines described in this utility model;

[0020] Figure 4 This utility model describes a bulldozer blade for coal mines. Figure 3 Enlarged view of point A;

[0021] Figure 5 This utility model describes a bulldozer blade for coal mines. Figure 3 Enlarged view of point B.

[0022] The reference numerals in the attached drawings are explained as follows: 1. Bucket; 101. Mounting cavity; 102. Clearance hole; 2. Shovel teeth; 201. First spring; 202. Slide groove; 203. Sliding block; 301. Support roller; 302. Second spring; 401. First protrusion; 402. Second protrusion; 403. Mounting plate; 404. Slide rod; 405. Hammer; 406. Limiting block; 407. Third spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-5 As shown, a bulldozer blade for coal mines includes a bucket 1. A plurality of equally spaced blades 2 are movably connected to one side of the bottom end of the bucket 1. An installation cavity 101 is provided in the bottom wall of the bucket 1. The blades 2 are slidably connected in the installation cavity 101. A first spring 201 for resetting is fixedly connected between the blades 2 and the installation cavity 101.

[0027] The bottom of the mounting cavity 101 is provided with a groove 202, and a slider 203 is slidably connected in the groove 202. The shovel tooth 2 is fixedly connected to the top of the slider 203. The width of the slider 203 is smaller than the width of the groove 202, so that the shovel tooth 2 can swing within a certain range.

[0028] A striking mechanism is provided on both the front and rear sides of the shovel tooth 2. Each shovel tooth 2 corresponds to a set of striking mechanisms. The striking mechanism is used to alternately strike the shovel tooth 2 from both the front and rear directions. The striking mechanism includes a first protrusion 401 and a second protrusion 402 fixedly connected to the front and rear sides of the shovel tooth 2. The first protrusion 401 and the second protrusion 402 are staggered. Two mounting plates 403 are fixedly connected in the mounting cavity 101. A sliding rod 404 is slidably connected in the mounting plate 403. A striking hammer 4 is fixedly connected to the end of the sliding rod 404 near the shovel tooth 2. 05. The other end of the slide bar 404 extends out of the mounting plate 403 and is fixedly connected to the limit block 406. A third spring 407 for resetting is connected between the hammer 405 and the mounting plate 403. The third spring 407 is wrapped around the outer circumference of the slide bar 404. The hammers 405 on the front and rear mounting plates 403 are staggered. The first protrusion 401, the second protrusion 402, and the hammer 405 are all arc-shaped, which increases the stability of the hammer 405 when it moves relative to the first protrusion 401 or the second protrusion 402.

[0029] The side wall of the bucket 1 is provided with a clearance hole 102, which is connected to the mounting cavity 101. The shovel tooth 2 moves within the clearance hole 102. The width of the clearance hole 102 is greater than the width of the shovel tooth 2. Two sets of auxiliary support components are symmetrically arranged in the clearance hole 102. The auxiliary support components include a support roller 301 rotatably connected in the clearance hole 102. The shovel tooth 2 is located between the two support rollers 301 and abuts against the support rollers 301. The auxiliary support components also include a second spring 302. One end of the second spring 302 is fixedly connected in the clearance hole 102, and the other end of the second spring 302 abuts against the shovel tooth 2 but is not fixed. When the hammer 405 strikes the shovel tooth 2, the shovel tooth 2 swings a certain amount around the point of contact with the support roller 301 as the fulcrum. The support roller 301 and the second spring 302 provide auxiliary support for the shovel tooth 2.

[0030] Working principle: During normal operation, the bulldozer drives the bucket 1 to push. When one or more teeth 2 on the bucket 1 come into contact with a hard object embedded in the soil, the teeth 2 retract into the mounting cavity 101, compressing the first spring 201. When the first spring 201 is compressed to a certain extent, the second protrusion 402 on the teeth 2 first abuts against the hammer 405. The teeth 2 continue to move, and the hammer 405, under the pressure of the second protrusion 402, drives the sliding rod 404 to move away from the teeth 2. After the second protrusion 402 disengages from the hammer 405, the hammer 405, under the action of the third spring 407, quickly moves towards the teeth 2 to strike them. Then, the first protrusion 401 abuts against the hammer 405. The hammer 405 is driven to slide away from the shovel tooth 2. After the first protrusion 401 separates from the hammer 405, the hammer 405 moves quickly toward the shovel tooth 2 under the action of the third spring 407 and strikes the shovel tooth 2. After the shovel tooth 2 comes into contact with the hard object, the hammer 405 strikes the shovel tooth 2 alternately from the front and rear directions, causing the shovel tooth 2 to vibrate. These vibrations are transmitted to the hard object in the outside, causing the hard object to vibrate and loosen the soil around it, making it easier for the bulldozer to continue pushing. When the hammer 405 strikes the shovel tooth 2, the shovel tooth 2 swings a certain amount around the point of contact with the support roller 301, thereby generating amplitudes in different directions on the hard block, shortening the time for the hard object to loosen, and improving overall efficiency.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bulldozer blade for coal mines, comprising a bucket (1), wherein a plurality of equally spaced blade teeth (2) are movably connected to one side of the bottom end of the bucket (1), characterized in that: The bottom wall of the bucket (1) is provided with an installation cavity (101). The shovel teeth (2) are slidably connected in the installation cavity (101). A first spring (201) is fixedly connected between the shovel teeth (2) and the installation cavity (101). A striking mechanism is provided on the front and rear sides of the shovel teeth (2). One shovel tooth (2) corresponds to one set of the striking mechanism. The striking mechanism is used to strike the shovel teeth (2) alternately from the front and rear directions. The side wall of the bucket (1) is provided with a clearance hole (102). The clearance hole (102) communicates with the installation cavity (101). The shovel teeth (2) move in the clearance hole (102). Two sets of auxiliary support components are symmetrically arranged in the clearance hole (102).

2. The bulldozer blade for coal mines according to claim 1, characterized in that: The striking mechanism includes a first protrusion (401) and a second protrusion (402) fixedly connected to the front and rear sides of the shovel teeth (2). The first protrusion (401) and the second protrusion (402) are misaligned. Two mounting plates (403) are fixedly connected in the mounting cavity (101). A sliding rod (404) is slidably connected in the mounting plate (403). A striking hammer (405) is fixedly connected to one end of the sliding rod (404) near the shovel teeth (2). The other end of the sliding rod (404) extends out of the mounting plate (403) and is fixedly connected to a limiting block (406). A third spring (407) is connected between the striking hammer (405) and the mounting plate (403). The third spring (407) is wrapped around the outer periphery of the sliding rod (404). The striking hammers (405) on the front and rear mounting plates (403) are misaligned.

3. The bulldozer blade for coal mines according to claim 1, characterized in that: The bottom of the mounting cavity (101) is provided with a sliding groove (202), and a slider (203) is slidably connected in the sliding groove (202). The shovel teeth (2) are fixedly connected to the top of the slider (203).

4. A bulldozer blade for coal mines according to claim 3, characterized in that: The width of the slider (203) is smaller than the width of the groove (202), and the width of the clearance hole (102) is larger than the width of the shovel tooth (2).

5. A bulldozer blade for coal mines according to claim 1, characterized in that: The auxiliary support assembly includes a support roller (301) rotatably connected in the clearance hole (102), and the shovel tooth (2) is located between the two support rollers (301), and the shovel tooth (2) abuts against the support roller (301).

6. A bulldozer blade for coal mines according to claim 1, characterized in that: The auxiliary support assembly also includes a second spring (302), one end of which is fixedly connected to the clearance hole (102), and the other end of which abuts against the shovel tooth (2).

7. A bulldozer blade for coal mines according to claim 2, characterized in that: The first protrusion (401), the second protrusion (402), and the hammer (405) are all arc-shaped.

Images