Stroke adjusting mechanism for belt conveyor bottom cleaning machine

Abstract

The utility model discloses a stroke adjusting mechanism for a belt conveyor bottom cleaning machine, which is applied to the belt conveyor bottom cleaning machine at the bottom of a belt conveyor and comprises stroke frames, and the two stroke frames on the belt conveyor bottom cleaning machine are both connected with the stroke adjusting mechanism. The stroke adjusting mechanism is used for adjusting the stroke of the stroke frame on the side face, due to the arrangement of a worm and gear assembly, adjustment can be conducted on the side face, adjustment is more convenient and safer, and the problem that in the prior art, due to the fact that a hand wheel and a lead screw are located under a belt conveyor, personnel cannot enter the bottom of the belt conveyor, and the belt conveyor is damaged is solved. Personnel cannot exert force during adjustment, and adjustment is difficult; and the field working surface is narrow, so that safety accidents are easily caused.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a stroke regulating mechanism for a belt conveyor bottom sweeper. Background Art

[0002] The bottom cleaner of the belt conveyor is used at the bottom of the belt conveyor to clean the dust dropped from the belt conveyor. The Chinese patent with publication number CN205294172U discloses a belt cleaning scraper conveyor, including a head assembly, a middle frame, a tail assembly and a tensioning mechanism. The overall structure of the device is simple, the cleaning area is large, the material feeding capacity is large, the environmental conditions can be improved, and the safety of operators can be guaranteed.

[0003] The above-mentioned belt cleaning scraper conveyor has the following disadvantages in actual operation:

[0004] The height of the sweeper at the bottom of the belt conveyor is relatively low and is placed at the bottom of the belt conveyor. A handwheel is installed at the front end of the screw rod for adjusting the stroke, and the adjustment is made directly through the handwheel. Due to the limited installation space of the equipment, the workers stand on the side of the belt conveyor. The screw rod is placed parallel to the belt conveyor and does not extend to both sides. The workers need to reach into the bottom of the belt conveyor for adjustment. The workers cannot adjust the stroke from the side, which makes the adjustment more difficult and dangerous. Utility Model Content

[0005] The purpose of the utility model is to provide a stroke adjustment mechanism for a belt conveyor bottom sweeper. By setting a worm gear assembly, the worm extends to both sides of the belt conveyor bottom sweeper, and the stroke can be adjusted on both sides by a screw rod through manual and electric adjustment methods, which can solve the problems in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A stroke adjustment mechanism for a belt conveyor bottom sweeper is used on the belt conveyor bottom sweeper at the bottom of the belt conveyor, and includes a stroke frame. The two stroke frames on the belt conveyor bottom sweeper are both connected to the stroke adjustment mechanism, and the stroke adjustment mechanism is used to adjust the stroke of the stroke frame at the side.

[0008] Furthermore, the stroke adjustment mechanism includes a box body, a worm gear assembly and a screw. The box body is installed on the outside of the side display frame by bolts. The screw runs through the inside of the box body, and the worm gear assembly is installed inside the box body.

[0009] Furthermore, the worm gear assembly includes a worm wheel and a worm, two ends of the worm extend to two sides of the housing, and the worm meshes with the worm wheel rotatably embedded in the housing.

[0010] Furthermore, the inner ring of the worm wheel is provided with threads, and the worm wheel is sleeved on the lead screw and meshed through the threads.

[0011] Furthermore, one end of the screw rod extends out of the box body, and the other end of the screw rod passes through the side display frame and the shaft body frame inside the horizontal groove to be rotatably connected.

[0012] Furthermore, the worm is rotatably connected to the housing via a bearing.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model changes the traditional way of setting a handwheel just in front of the screw, and adopts the way of linkage between a worm gear assembly and the screw, and has two working modes. Two equipment styles can be selected according to the on-site environment. The rotation of the worm can be adjusted manually or electrically on the side of the sweeper at the bottom of the belt conveyor, and then the worm gear drives the screw to make a straight reciprocating motion forward and backward to adjust the stroke. Since the adjustment can be made on the side, the adjustment is more convenient and safer, which solves the traditional problem that the handwheel and the screw are located just below the belt conveyor, and personnel cannot enter the bottom of the belt conveyor, and personnel cannot exert force when adjusting, which makes the adjustment difficult; the on-site working surface is narrow, which is prone to safety accidents.

[0015] 2. The utility model installs a worm gear assembly on the screw rod, and the screw rod is adjusted with the help of the worm gear, which makes the adjustment more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall top view of Embodiment 1 of the present utility model;

[0017] Figure 2 This is an axonometric diagram of the stroke adjustment mechanism of Example 1 of the utility model;

[0018] Figure 3 It is a side view of the installation of the stroke frame and the stroke adjustment mechanism of Example 1 of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the travel frame of the utility model;

[0020] Figure 5 This is an overall top view of Embodiment 2 of the present utility model;

[0021] Figure 6 This is a schematic structural diagram of the stroke adjustment mechanism of Example 2 of the utility model.

[0022] In the figure: 1. travel frame; 2. box body; 101. side expansion frame; 102. horizontal slot; 103. front axle; 104. shaft body plate frame; 1021. limit slot; 1031. gear ring; 1041. lubricating bearing; 3. screw; 4. worm wheel; 5. worm. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In order to solve the problems in the prior art that the hand wheel and the screw rod are located directly below the belt conveyor, the personnel cannot enter the bottom of the belt conveyor, the personnel cannot exert force when adjusting, and the adjustment is difficult; the on-site working surface is narrow, and safety accidents are prone to occur; the utility model provides the following solutions:

[0025] Example 1

[0026] See also Figure 1-Figure 4 A stroke adjustment mechanism for a belt conveyor bottom sweeper is applied to the belt conveyor bottom sweeper at the bottom of the belt conveyor, and includes a stroke frame 1. The two stroke frames 1 on the belt conveyor bottom sweeper are connected to the stroke adjustment mechanism. The stroke adjustment mechanism is used to adjust the stroke of the stroke frame 1 from the side. The stroke adjustment mechanism can adjust the stroke through a screw rod from the side, making the adjustment more convenient and safer.

[0027] In this embodiment, the stroke adjustment mechanism includes a box body 2, a worm gear assembly and a screw 3. The box body 2 is installed on the outside of the side display frame 101 by bolts. The screw 3 runs through the inside of the box body 2. The worm gear assembly is installed inside the box body 2. One end of the screw 3 extends out of the box body 2, and the other end of the screw 3 passes through the side display frame 101 and the shaft plate frame 104 inside the horizontal groove 102 for rotational connection. The screw 3 is driven by the worm gear assembly on the side to achieve stroke adjustment.

[0028] In this embodiment, a side display frame 101 is provided at one end of the travel frame 1, and the side display frame 101 is welded to the travel frame 1 to maintain its firmness. The box body 2 is installed on the outside of the side display frame 101 by bolts. A horizontal groove 102 is provided inside the travel frame 1, and an axle plate frame 104 is provided inside the horizontal groove 102. The axle plate frame 104 is slidably connected to the horizontal groove 102. When adjusting the stroke, the horizontal groove 102 is used for the axle plate frame 104 to slide back and forth. A front axle 103 is provided between the two axle plate frames 104. Gear rings 1031 are provided at both ends of the front axle 103. The gear ring 1031 is connected to the front axle 103 by bolts. The gear ring 1031 on the front axle 103 and the gear ring 1031 on the tail axle are connected by an anchor chain, and the anchor chain pulls the scraper to perform a scraping operation. (This is the prior art and will not be described in detail), and one end of the front axle 103 is connected to the motor, which drives the front axle 103 to rotate. A limited slot 1021 is set on one side of the horizontal slot 102. The front axle 103 is slidably connected to the stroke frame 1 through the limited slot 1021. The limited slot 1021 has a certain length and is used to give the front axle 103 a certain sliding space. The shaft body plate frame 104 is installed with a lubricating bearing seat 1041 through bolts. Both ends of the front axle 103 are installed in the lubricating bearing seat 1041 through bearings. The lubricating bearing seat 1041 supports the front axle 103 at both ends through bearings, so that the front axle 103 can rotate freely. The shaft body plate frames 104 on both sides can make the front axle 103 slide back and forth through the lubricating bearing seat 1041 at the same time, so as to achieve stroke adjustment;

[0029] In this embodiment, both ends of the front shaft 103 are installed in the horizontal groove 102 inside the stroke frame 1 through the shaft plate frame 104. When the anchor chain structure becomes loose and the chain links are stretched during use, due to the limited installation space of the equipment and the harsh use environment, manual adjustment is difficult. The handwheel of this mechanism is set on the two sides of the box body 2 (the traditional handwheel is set in front of the screw rod and does not extend to the side. Since the sweeper is located at the bottom of the belt conveyor, this increases the difficulty of adjustment). The utility model can adjust the stroke of the shaft plate frame 104 through the worm gear mechanism, and realize the tensioning operation of the anchor chain by moving the shaft plate frame 104;

[0030] Specifically, the worm gear assembly includes two worm wheels 4 and two worms 5. The two ends of the two worms 5 extend to both sides on the corresponding box body 2. The worm 5 is rotatably connected to the box body 2 through bearings. Hand wheels are installed at the two outermost ends of the worm 5 through flat keys. When manually adjusting, it is only necessary to shake the hand wheel on the side of the mechanism to avoid the traditional adjustment that requires workers to adjust at the bottom of the belt conveyor. The utility model adjusts on the side, which not only makes the adjustment convenient and safe, but also because it uses the worm gear assembly to adjust the screw rod 3, it is more labor-saving than the original direct adjustment of the screw rod 3.

[0031] Specifically, the worm 5 is meshed with the worm wheel 4 which is embedded in the housing 2 in a rotational manner. The housing 2 can limit the worm wheel 4 so that the worm wheel 4 rotates in the limiting groove of the housing 2, and only rotates without moving forward and backward. The inner ring of the worm wheel 4 is provided with threads, and the worm wheel 4 is sleeved on the screw rod 3 and meshed through the threads. After the worm wheel 4 is driven by the worm 5 to rotate forward and backward, the screw rod 3 moves forward and backward under the action of the threads, and then the shaft body plate frame 104 can be pushed and pulled to adjust the stroke.

[0032] Example 2

[0033] See also Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 is that a longer worm 5 is provided, which passes through the two boxes 2 and meshes with the worm wheels 4 in the two boxes 2. The two ends of the worm 5 are located on both sides of the box 2. Any end of the worm 5 is connected to the motor, and the worm 5 is driven by the motor on any side. One worm 5 synchronously adjusts the two worm wheels 4. After the two worm wheels 4 rotate, the lead screw 3 is driven to move forward and backward, thereby realizing the adjustment of the stroke.

[0034] Working principle: This utility model has two adjustment modes, which can be selected according to the on-site environment. When manual adjustment is required, choose to install Figure 1 This style has two worm gears 5. It is only necessary to shake the handwheel on the two outermost sides of the mechanism to drive the worm gear 5 to rotate, and the worm gear 5 drives the worm wheel 4 to rotate. The worm wheel 4 moves the screw rod 3 back and forth under the action of the thread, and then the shaft plate frame 104 can be pushed and pulled to adjust the stroke.

[0035] Choose according to the site environment. If electric adjustment is required, choose to install Figure 5 In this style, the motor is installed on either side, and the motor drives the worm 5 on one side. One worm 5 adjusts the two worm wheels 4 synchronously. After the two worm wheels 4 rotate, the lead screw 3 is driven to move forward and backward to adjust the stroke.

[0036] The above two stroke adjustment mechanisms of the utility model can be used not only in the bottom sweeper of the belt conveyor, but also in various scenarios that require stroke adjustment. In short, the protection scope of the utility model is not limited to this. Any technician familiar with the technical field can easily think of changes or replacements of the application scenarios of the stroke adjustment mechanism of the utility model within the technical scope disclosed by the utility model, which should be covered within the protection scope of the utility model.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stroke adjustment mechanism for a belt conveyor bottom cleaning machine, applied to a belt conveyor bottom cleaning machine at the bottom of a belt conveyor, comprising a stroke frame (1), characterized in that: The two stroke frames (1) on the belt conveyor bottom sweeper are both connected to a stroke adjustment mechanism, and the stroke adjustment mechanism is used to adjust the stroke of the stroke frame (1) at the side.

2. The stroke adjustment mechanism for a belt conveyor bottom cleaning machine according to claim 1, characterized in that: The stroke adjustment mechanism comprises a housing (2), a worm gear assembly and a screw (3); the housing (2) is mounted on the outside of the side display frame (101) by means of bolts; the screw (3) runs through the interior of the housing (2); and the worm gear assembly is mounted inside the housing (2).

3. The stroke adjustment mechanism for a belt conveyor bottom cleaning machine according to claim 2, characterized in that: The worm gear assembly comprises a worm wheel (4) and a worm (5), two ends of the worm (5) extend toward two sides of the housing (2), and the worm (5) meshes with the worm wheel (4) which is rotatably embedded in the housing (2).

4. The stroke adjustment mechanism for a belt conveyor bottom cleaning machine according to claim 3, characterized in that: The inner ring of the worm wheel (4) is provided with threads, and the worm wheel (4) is sleeved on the screw rod (3) and meshed with the threads.

5. The stroke adjustment mechanism for a belt conveyor bottom cleaning machine according to claim 2, characterized in that: One end of the screw rod (3) extends out of the box body (2), and the other end of the screw rod (3) passes through the side display frame (101) and the shaft body frame (104) inside the horizontal groove (102) for rotational connection.

6. The stroke adjustment mechanism for a belt conveyor bottom cleaning machine according to claim 2, characterized in that: The worm (5) is rotationally connected to the housing (2) via a bearing.

Images