Thrust mechanism for garbage incineration material screening equipment

Abstract

The utility model relates to a thrust mechanism for garbage incineration material screening equipment. The thrust mechanism comprises a screen frame, a screen body, a driving device and a thrust mechanism body, the screen body and the driving device are arranged on the screen frame; a thrust mechanism is arranged at the tail part of the screen body and is mounted on the screen frame; the driving device drives the screen body to rotate, and materials are driven to rotate in the screen body. A thrust mechanism at the tail of the screen body prevents the screen body from moving backwards. The vibrating screen has the advantages that the thrust mechanism is adopted to prevent the screen body from moving; when the screening equipment works, due to impact and vibration of materials, a screen body can generate left-right or front-back displacement. The anti-thrust mechanisms are arranged in the middle and on the two sides of the screen body, so that the screen body can stably work at a preset position through mutual matching of the three points, and the screen body is prevented from deviating or moving due to the action of external force.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage disposal and is a thrust stop mechanism used for garbage incineration screening equipment. Background Art

[0002] The current screening equipment has a large deadweight. After installation or after working for a period of time, the screen body will tilt and move backwards. When the screen body moves backwards, it will cause the following problems: 1. Reduced screening efficiency: When the screening equipment moves backwards due to its own weight, the screened material may be subjected to uneven force, resulting in uneven distribution of the material on the screen surface. This may cause some materials to fail to be fully screened, thereby reducing the screening efficiency. In addition, the backward movement may also cause the accumulation of materials on the screen surface, further affecting the screening effect; 2. Decreased equipment stability: During the backward movement of the equipment's screen body, the equipment stability may decrease due to changes in the center of gravity or increased vibration. Equipment with poor stability is prone to failures, such as bearing wear, screen surface damage, etc., which in turn affects the normal progress of the screening operation; 3. Increased maintenance costs: The backward movement of the equipment screen body may result in reduced screening efficiency and reduced equipment stability, so more frequent equipment maintenance and overhaul are required. This not only increases maintenance costs, but may also affect the continuous operation of the production line.

[0003] In summary, if the equipment is unstable and the screen moves backward, it may lead to disadvantages such as reduced screening efficiency, decreased equipment stability, increased maintenance costs, and increased energy consumption. In order to improve the screening effect and reduce operating costs, these problems need to be improved and optimized.

[0004] Based on this, a thrust mechanism for waste incineration screening equipment was designed. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a thrust stop mechanism for waste incineration screening equipment which can prevent unexpected displacement of the screen body and can adjust the thrust stop distance, thereby solving the problem of unstable screen body of the prior screening equipment.

[0006] The purpose of the utility model is achieved through the following technical solutions: a thrust mechanism for waste incineration screening equipment, including a screen frame, a screen body, a driving device and a thrust mechanism;

[0007] The sieve body and the driving device are placed on the sieve frame; a thrust mechanism is provided at the tail of the sieve body, and the thrust mechanism is installed on the sieve frame;

[0008] The driving device drives the screen body to rotate, and the material is driven to rotate in the screen body; the thrust mechanism at the tail of the screen body prevents the screen body from moving backwards.

[0009] Furthermore, the thrust mechanism includes a fixed thrust mechanism and an adjustable thrust mechanism:

[0010] The fixed thrust mechanism and the adjustable thrust mechanism are installed on the screen frame, the fixed thrust mechanism is placed at the lower part of the tail of the screen body; the adjustable thrust mechanisms are symmetrically installed on both sides of the tail of the screen body.

[0011] Further, the adjustable stop mechanism comprises a second thrust block, a screw rod and a mounting seat;

[0012] The mounting seat comprises a first seat body and a second seat body, the first seat body is arranged in a guide rail in the screen frame, and the second seat body is fixed on the screen frame;

[0013] A second thrust block is fixed on the first seat body, and the second thrust block abuts against the screen body;

[0014] A screw rod passes between the first seat body and the second seat body, one end of the screw rod is fixed on the first seat body, and the other end passes through the second seat body. The top end of the screw rod away from the first seat body is arranged on the adjusting wheel.

[0015] Furthermore, the adjustable thrust mechanism also includes a downward pressure spring, and the downward pressure spring is installed on the baffle on the screw rod.

[0016] Further, the downward pressure spring includes a stress spring and a spring seat;

[0017] The bottom end of the stress spring is installed on the screw rod, the top end of the stress spring is fixed to the spring seat, the spring seat is fixed on the screen frame, and the screw rod passes through the lower part of the spring seat.

[0018] Further, the fixed thrust mechanism includes a base, a thrust column and a first thrust block;

[0019] The base is welded to the rear end of the screen frame, and a thrust column is fixedly installed on the base; the first thrust block is cylindrical and is sleeved on the thrust column; the first thrust block can rotate with the rotation of the screen body.

[0020] The utility model has the following advantages:

[0021] (1) Prevent the screen body from moving;

[0022] The utility model adopts a thrust stop mechanism to prevent the displacement of the screen body; firstly, the screen body has a heavy weight and will move backwards under the action of gravity after installation; secondly, when the screening equipment is working, the screen body may be displaced left and right or front and back due to the impact and vibration of the material.

[0023] The displacements produced in the above two situations will reduce the overall screening efficiency and screening accuracy of the screening equipment. For this reason, the thrust stop mechanism of the utility model is provided in the middle and both sides of the screen body. The three points cooperate with each other to ensure that the screen body can work stably in a predetermined position and prevent it from being offset or moved due to external force.

[0024] (2) The thrust distance can be adjusted to accommodate installation errors or wear errors;

[0025] The accuracy of the thrust distance is maintained by setting an adjustable thrust stop mechanism. The adjustable thrust stop mechanism adopts a structure similar to the sliding of a screw rod to make the position of the slider adjustable in the guide rail, so as to adapt to the gap distance caused by installation error or wear error of the screen body. In the face of such minor errors, there is no need to reinstall it again, and only corresponding minor adjustments can be made through the adjustable thrust stop mechanism.

[0026] (2) Automatic rotation;

[0027] By setting a downward pressure spring, the movement of the screen body will have more impact during operation. The downward pressure spring prevents the second thrust block from retreating under the action of the screen body and driving the screw to rotate; the downward pressure spring receives the upward thrust and applies downward pressure, causing the screw to rotate, thereby driving the second thrust block back to its original position, ensuring that the position of the screen body remains unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram (side view) of the utility model;

[0029] Figure 2 It is a structural schematic diagram of the adjustable thrust (front view);

[0030] 1-screen frame, 2-screen body, 3-driving device, 4-thrust mechanism, 41-fixed thrust mechanism, 42-adjustable thrust mechanism, 411-base, 412-thrust column, 413-first thrust block, 421-second thrust block, 422-screw rod, 423-mounting seat, 424-downward pressure spring, 4231-first seat body, 4232-second seat body, 4241-stress spring, 4242-spring seat. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0032] It should be noted that the directions or positional relationships indicated by "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use, or are the directions or positional relationships commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0034] like Figure 1-2 As shown, the thrust mechanism for waste incineration screening equipment proposed in this embodiment includes a screen frame 1, a screen body 2, a driving device 3 and a thrust mechanism 4;

[0035] like Figure 1 As shown, in some specific embodiments, the screen frame 1 is composed of a plurality of column supports and cross column supports, the column supports at the front end are high, and the height of the column supports gradually decreases toward the rear end; the screen body 2 is placed on the screen frame 1, and the screen body 2 is tilted to the horizontal ground as a whole; the driving device 3 is placed on the screen frame 1, and the rollers on the driving device 3 are meshed with the gears on the screen body 2, and the driving device 3 rotates to drive the screen body 2 to rotate, and the material is driven to rotate in the screen body 2.

[0036] The sieve body 2 is placed obliquely on a horizontal plane. Due to its large deadweight, the sieve body 2 will slide backwards. An outer ring layer is arranged on the sieve body 2, and a thrust stop mechanism 4 is installed at the tail of the sieve body 2. The thrust stop mechanism 4 prevents the outer ring layer on the sieve body 2 from sliding backwards due to its deadweight and causing the sieve body 2 to fall off the sieve frame 1.

[0037] like Figure 1 As shown, the thrust mechanism 4 includes a fixed thrust mechanism 41 and an adjustable thrust mechanism 42; the fixed thrust mechanism 41 is arranged at the lower middle part of the tail of the screen body 2, and the fixed thrust mechanism 41 is fixedly welded on the screen frame 1; the adjustable thrust mechanism 42 is installed on the screen frame 1, and the adjustable thrust mechanism 42 is symmetrically installed on both sides of the tail of the screen body 2. The fixed thrust mechanism 41 located in the middle of the screen body 2 and the adjustable thrust mechanisms 42 on both sides are designed so that the three can work together to share the downward pressure of the screen body 2, which can ensure that the screen body 2 works stably at a predetermined position and prevent it from being deviated left and right or moving forward and backward due to external forces. Thereby, when the screening equipment moves backward due to its own weight, the screening material may be subjected to uneven force, resulting in uneven distribution of the material on the screen surface, thereby reducing the screening efficiency. In addition, the backward movement of the screen body 2 may also cause the accumulation of materials on the screen surface, further affecting the screening effect.

[0038] In addition to the undesired position of the screen body 2 of the screening equipment due to its own weight, there will always be a certain installation error when the screening equipment is manufactured and installed; at the same time, after the equipment is in operation, friction occurs between the screen body 2 and the thrust mechanism 4, and high-frequency use will cause wear to the screen body 2 or the thrust mechanism 4; the above two situations will cause a gap between the screen body 2 and the thrust mechanism 4.

[0039] In some specific embodiments, Figure 2As shown, the adjustable thrust mechanism 42 includes a second thrust block 421, a screw rod 422 and a mounting seat 423; the mounting seat 423 includes a first seat body 4231 and a second seat body 4232, the first seat body 4231 is arranged in the guide rail in the screen frame 1, and the second seat body 4232 is fixed on the screen frame 1; the second thrust block 421 is fixed on the first seat body 4231, and the second thrust block 421 abuts against the screen body 2; the screw rod 422 passes between the first seat body 4231 and the second seat body 4232, one end of the screw rod 422 is fixed on the first seat body 4231, and the other end passes through the second seat body 4232, and the top end of the screw rod 422 away from the first seat body 4231 is arranged on the adjusting wheel;

[0040] By rotating the adjusting wheel at the top of the screw rod 422, the screw rod 422 drives the second thrust block 421 to adjust to a position in contact with the outer ring layer of the sieve body 2, so that the adjustable thrust mechanism 42 is adapted to the sieve body 2 to avoid installation errors during installation. At the same time, the gap caused by wear can also be adjusted by adjusting the position of the screw rod sliding block 423;

[0041] In some specific embodiments, the main body of the screw rod 422 is provided with a tooth-shaped thread with a single-side inclined shape on both the upper and lower surfaces. The tooth-shaped thread is a stop thread, so that the slider 423 can only slide in one direction under the action of the stop thread, and at the same time, the second thrust block 421 is reliably fixed at the current adjusted position and will not slide backward.

[0042] In some preferred embodiments, the adjustable thrust mechanism 42 further includes a downward pressure spring 424, which is mounted on a baffle on the screw rod 422. The downward pressure spring 424 includes a stress spring 4241 and a spring seat 4242; the bottom end of the stress spring 4241 is mounted on the screw rod 422, the top end of the stress spring 4241 is fixed to the spring seat 4242, the spring seat 4242 is fixed to the screen frame 1, and the screw rod 422 passes through the lower part of the spring seat 4242;

[0043] In some specific embodiments, Figure 2 As shown, the adjustable thrust mechanism 42 also includes a downward pressure spring 425. A follower shaft 4221 is provided at one end of the screw rod 422 close to the adjusting wheel, and the follower shaft 4221 is screwed into the screw rod 422 through a thread; the follower shaft 4221 can rotate axially with the screw rod 422, and a baffle is installed on the follower shaft 4221. The downward pressure spring 423 is installed on the baffle on the follower shaft 4221.

[0044] After the equipment is installed, the position of the adjustable thrust mechanism 42 in the thrust mechanism 4 is adjusted and fixed; when the equipment is running, a gap caused by wear appears between the screen body 2 and the adjustable thrust mechanism 42, and the screen body 2 retreats, causing the second thrust block 421 to also retreat under pressure; at this time, the screw rod 422 rotates, and the rotation of the screw rod 422 applies an upward thrust to the upper downward pressure spring 425; the downward pressure spring 425 applies downward pressure after sensing the upward thrust, causing the screw rod 422 to rotate, driving the second thrust block 421 to move forward until the second thrust block 421 is against the screen body 2.

[0045] In some specific embodiments, the fixed thrust mechanism 41 includes a base 411, a thrust column 412 and a thrust block 413; the base 411 is welded to the rear end of the screen frame 1, and the thrust column 412 is fixedly installed on the base 411; the thrust block 413 is cylindrical and is mounted on the thrust column 412; the thrust block 413 can rotate with the rotation of the screen body 2.

[0046] The advantages of the utility model are: a. The thrust mechanism 4 is used to prevent the displacement of the screen body 2. When the screening equipment is working, the screen body 2 may be displaced left and right or front and back due to the impact and vibration of the material. The thrust mechanism 4 is provided in the middle and both sides of the screen body 2 to ensure that the screen body 2 works stably at a predetermined position and prevent it from being offset or moved due to external forces; b. The accuracy of the thrust distance is maintained by setting an adjustable thrust mechanism 42. The adjustable thrust mechanism 42 is adjustable in position in the track to adapt to the gap distance caused by the installation error or wear error of the screen body 2; c. By setting a single-sided tooth-shaped thread, it is ensured that the second thrust block 421 can only slide in one direction to ensure the thrust force; d. By setting a downward pressure spring 425, after the second thrust block 421 is pushed backward, the downward pressure spring 425 can automatically make the screw rod 422 rotate.

[0047] The utility model ensures the stability of the position of the screen body 2 by setting a thrust mechanism 4, prevents the screen body 2 from unexpected displacement, and thus maintains the screening accuracy. When the screen body 2 is stable and motionless, the distribution of materials on the screen surface is more uniform, and the screening process is more reliable, thereby improving the screening efficiency and ensuring the effective separation and treatment of garbage; at the same time, the thrust mechanism 4 can reduce the vibration and displacement of the screen body 2, so it helps to reduce the wear and fatigue of the screen body. This can not only extend the service life of the screening equipment, but also reduce the maintenance and replacement costs of the equipment; finally, for the screening equipment as a whole, the overall stability is improved, and by ensuring the stability of the screen body 2, the stability and reliability of the entire system are improved.

[0048] The above embodiments only express the preferred implementation modes, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model.

Claims

1. A thrust mechanism for waste incineration screening equipment, characterized in that: It comprises a screen frame (1), a screen body (2), a driving device (3) and a thrust mechanism (4); The sieve body (2) and the driving device (3) are placed on the sieve frame (1); a thrust mechanism (4) is provided at the rear of the sieve body (2), and the thrust mechanism (4) is installed on the sieve frame (1); The driving device (3) drives the screen body (2) to rotate, and the material is driven to rotate in the screen body (2); the thrust stop mechanism (4) at the rear of the screen body (2) prevents the screen body (2) from moving backwards.

2. The thrust mechanism for waste incineration screening equipment according to claim 1, characterized in that: The thrust mechanism (4) comprises a fixed thrust mechanism (41) and an adjustable thrust mechanism (42): The fixed thrust mechanism (41) and the adjustable thrust mechanism (42) are installed on the screen frame (1), and the fixed thrust mechanism (41) is placed at the lower part of the tail of the screen body (2); the adjustable thrust mechanisms (42) are symmetrically installed on both sides of the tail of the screen body (2).

3. The thrust mechanism for waste incineration screening equipment according to claim 2, characterized in that: The adjustable thrust mechanism (42) comprises a second thrust block (421), a screw rod (422) and a mounting seat (423); The mounting seat (423) comprises a first seat body (4231) and a second seat body (4232), wherein the first seat body (4231) is arranged in a guide rail in the sieve frame (1), and the second seat body (4232) is fixed on the sieve frame (1); A second thrust block (421) is fixed on the first seat body (4231), and the second thrust block (421) abuts against the screen body (2); A screw rod (422) passes between the first seat body (4231) and the second seat body (4232), one end of the screw rod (422) is fixed on the first seat body (4231), and the other end passes through the second seat body (4232), and the top end of the screw rod (422) away from the first seat body (4231) is arranged on the adjusting wheel.

4. The thrust mechanism for waste incineration screening equipment according to claim 3 is characterized in that: The adjustable thrust mechanism (42) further comprises a downward pressure spring (424), wherein the downward pressure spring (424) is mounted on a baffle on the screw rod (422).

5. The thrust mechanism for waste incineration screening equipment according to claim 4, characterized in that: The downward pressure spring (424) comprises a stress spring (4241) and a spring seat (4242); The bottom end of the stress spring (4241) is mounted on the screw rod (422), the top end of the stress spring (4241) is fixed to the spring seat (4242), the spring seat (4242) is fixed to the screen frame (1), and the screw rod (422) passes through the lower part of the spring seat (4242).

6. The thrust mechanism for waste incineration screening equipment according to claim 2, characterized in that: The fixed thrust mechanism (41) comprises a base (411), a thrust column (412) and a first thrust block (413); The base (411) is welded to the rear end of the screen frame (1), and a thrust column (412) is fixedly mounted on the base (411); the first thrust block (413) is cylindrical and is sleeved on the thrust column (412); the first thrust block (413) can rotate along with the rotation of the screen body (2).

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