A jaw plate gap adjusting mechanism for stone crushing

Abstract

This utility model relates to the field of crusher technology and provides a jaw plate gap adjustment mechanism for stone crushing, comprising: a housing, wherein a fixed jaw plate is fixedly connected to one side of the inner wall of the housing. In this utility model, by manually turning the handle, the rotating rod and eccentric wheel rotate, pushing the block and insert rod outward, releasing the limiting position on the connecting block. With the cooperation of the anti-slip groove, the eccentric wheel can be locked with the connecting block. Then, by manually pulling the handle upward, the limiting rod disengages from the inside of the adjustment hole, releasing the limiting position on the connecting plate. Pushing the adjusting rod to one side causes it to slide along the inside of the connecting plate, thus adjusting the gap between the fixed jaw plate and the moving jaw plate. The elastic force of the spring prevents relative sliding between the sliding rod and the adjusting rod. This manual operation requires less effort and is relatively easy, thereby improving the efficiency of adjusting the gap between the fixed jaw plate and the moving jaw plate.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, and in particular to a jaw plate gap adjustment mechanism for stone crushing. Background Technology

[0002] Jaw crushers are widely used coarse crushing equipment in mining, building materials, and other fields, mainly for the preliminary crushing of hard materials such as rocks and ores. Their core structure consists of a fixed jaw plate (stationary jaw) and a movable jaw plate (moving jaw). The moving jaw is driven by an eccentric shaft to perform periodic reciprocating motion, creating a "chewing" squeezing action with the fixed jaw to crush the material into smaller particles. The crushing chamber has a V-shaped design, where the material is gradually squeezed, split, and broken from top to bottom, finally discharging from the bottom discharge port. The particle size can be controlled by adjusting the width of the discharge port.

[0003] In the prior art, for example, Chinese Patent No. CN203830056U discloses a jaw crusher, including a feed hopper and two mating jaw plates. One jaw plate is connected to a crankshaft, and the upper end of the other jaw plate is fixed to the machine body with a pin, while the lower end is provided with a gap adjustment mechanism. This invention, based on the traditional one-moving-one-stationary jaw plate structure, sets the stationary jaw plate to a micro-movement type, allowing the gap between the crushing jaw plates to be reduced or increased, enabling the preparation of samples with multiple particle sizes in one machine. Furthermore, a splash baffle is installed on the traditional feed hopper, which effectively reduces splashing and improves operator safety.

[0004] While the above solution has the advantages mentioned above, its disadvantage is that although the axial extension and retraction of the push rod can be adjusted by loosening the locking nut and rotating the handwheel, thereby adjusting the gap between the micro jaw plate and the moving jaw plate, it requires a large amount of force to manually rotate the locking nut and the handwheel, resulting in low efficiency in adjusting the jaw plate gap. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that, although the axial extension and retraction of the top rod can be adjusted by loosening the locking nut and rotating the handwheel to adjust the gap between the micro jaw plate and the moving jaw plate, a large amount of force is required to rotate the locking nut and the handwheel manually, resulting in low efficiency in adjusting the jaw plate gap.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a jaw plate gap adjustment mechanism for stone crushing, comprising: a housing, a fixed jaw plate fixedly connected to one side of the inner wall of the housing, and a movable jaw plate provided on one side of the inner wall of the housing, and further comprising:

[0007] Two square grooves are respectively formed on opposite sides of the housing. A slider is slidably connected inside the square groove. A round rod is rotatably connected to one side of the slider. A connecting plate is fixedly connected to one end of the two round rods. Multiple adjusting rods are slidably connected to one side of the connecting plate. A sliding rod is slidably connected to one end of the adjusting rod. The sliding rod is fixedly connected to the moving jaw plate. A spring is provided on the outer surface of the adjusting rod. Multiple limiting rods are slidably connected to the top of the connecting plate. A connecting strip is fixedly connected to one end of the multiple limiting rods. Multiple adjusting holes are equidistantly formed on the outer surface of the adjusting rod. One end of the limiting rod is slidably connected inside one of the adjusting holes.

[0008] Preferably, the outer surface of the limiting rod is provided with a second spring, which is fixedly connected to the connecting strip and the connecting plate respectively, and a handle is fixedly connected to the top of the connecting strip.

[0009] Preferably, a fixing ring is fixedly connected to the outer surface of the adjusting rod, and the spring is fixedly connected to the moving jaw plate and the fixing ring respectively.

[0010] Preferably, a guide rod is fixedly connected to the opposite side of the inner wall of the square groove, and the slider is fixedly connected to the guide rod.

[0011] Preferably, a connecting block is fixedly connected to the other side of the slider, and two insert rods are symmetrically slidably connected to one side of the connecting block. Two round holes are opened on opposite sides of the housing, and one end of the insert rod is slidably connected inside the round hole.

[0012] Preferably, a block is fixedly connected to the other end of the insertion rod, and a spring is provided on the outer surface of the insertion rod. The spring is fixedly connected to the connecting block and the block respectively.

[0013] Preferably, a rotating rod is rotatably connected to one side of the two blocks, and a handle is fixedly connected to one end of the rotating rod.

[0014] Preferably, an eccentric wheel is fixedly connected to the outer surface of the rotating rod, and the outer surface of the eccentric wheel is provided with anti-slip grooves in a circumferential array.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] This invention allows for the adjustment of the gap between the fixed and movable jaw plates by manually turning a handle. The handle rotates the lever and eccentric wheel, causing the eccentric wheel to contact the connecting block and experience a counterforce. This pushes the block and insert rod outwards, disengaging the insert rod from the round hole and releasing the limiting effect on the connecting block. Simultaneously, spring three is stretched, and with the help of the anti-slip groove, the eccentric wheel and connecting block are locked in a relatively fixed state. Pulling the handle upwards simultaneously moves the connecting strip and limiting rod upwards, disengaging the limiting rod from the adjusting hole and releasing the limiting effect on the connecting plate. Simultaneously, spring two is stretched, and pushing the adjusting rod to one side causes it to slide along the inside of the connecting plate. This simultaneously moves the sliding rod, spring one, fixing ring, and movable jaw plate to one side, adjusting the gap between the fixed and movable jaw plates. The elastic force of spring one prevents relative sliding between the sliding rod and adjusting rod when not subjected to significant force. This manual operation requires minimal effort and is relatively easy, thus improving the efficiency of adjusting the gap between the fixed and movable jaw plates.

[0017] This invention, by releasing the handle, allows the limiting rod to be inserted into another adjusting hole under the reset force of spring two, keeping the adjusting rod and connecting plate relatively fixed. Then, by manually turning the handle, the eccentric wheel rotates at an appropriate angle, gradually separating from the connecting block. This reduces the reverse force on the eccentric wheel, allowing the insert rod to be inserted into the round hole under the reset force of spring three, thus limiting the connection block and the slider. When the eccentric shaft mechanism of the jaw crusher drives the moving jaw plate to swing back and forth, the sliding rod can slide back and forth along the inside of the adjusting rod, simultaneously compressing or stretching spring one, and causing the connecting plate and round rod to rotate back and forth at an appropriate angle. This ensures that the moving jaw plate can swing back and forth smoothly, and with the cooperation of the fixed jaw plate, crush the stone. Attached Figure Description

[0018] Figure 1 A side view of the jaw plate gap adjustment mechanism for stone crushing provided by this utility model;

[0019] Figure 2 This utility model provides a jaw plate gap adjustment mechanism for stone crushing. Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 3 A bottom view of the jaw plate gap adjustment mechanism for stone crushing provided by this utility model;

[0021] Figure 4 This utility model provides a jaw plate gap adjustment mechanism for stone crushing. Figure 3 Enlarged structural diagram at point B.

[0022] Legend:

[0023] 1. Housing; 101. Fixed jaw plate; 102. Movable jaw plate; 103. Square groove; 2. Guide rod; 201. Slider; 202. Round rod; 203. Connecting plate; 204. Adjusting rod; 205. Adjusting hole; 206. Slide rod; 207. Spring 1; 208. Fixing ring; 209. Limiting rod; 210. Connecting bar; 211. Spring 2; 212. Handle; 3. Connecting block; 301. Insert rod; 302. Square block; 303. Rotating rod; 304. Spring 3; 305. Eccentric wheel; 306. Turning handle. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Examples, such as Figure 1-4 As shown, this utility model provides a jaw plate gap adjustment mechanism for stone crushing, including: a housing 1, a fixed jaw plate 101 fixedly connected to opposite sides of the inner wall of the housing 1, and a movable jaw plate 102 provided on opposite sides of the inner wall of the housing 1; and two square grooves 103 respectively opened on opposite sides of the housing 1, with a slider 201 slidably connected inside the square grooves 103, and a round rod 202 rotatably connected to one side of the slider 201. One end of each round rod 202 is fixedly connected to a connecting plate 203. Multiple adjusting rods 204 are slidably connected to the side. One end of each adjusting rod 204 is slidably connected to a slide rod 206. The slide rod 206 is fixedly connected to the moving jaw plate 102. A spring 207 is provided on the outer surface of the adjusting rod 204. Multiple limiting rods 209 are slidably connected to the top of the connecting plate 203. One end of each limiting rod 209 is fixedly connected to a connecting strip 210. Multiple adjusting holes 205 are equidistantly opened on the outer surface of the adjusting rod 204. One end of each limiting rod 209 is slidably connected to the inside of one of the adjusting holes 205.

[0027] Furthermore, such as Figure 1-4As shown, a second spring 211 is provided on the outer surface of the limiting rod 209. The second spring 211 is fixedly connected to the connecting strip 210 and the connecting plate 203 respectively. A handle 212 is fixedly connected to the top of the connecting strip 210. Under the reset force of the second spring 211, the limiting rod 209 can be inserted into the interior of the adjusting hole 205, so that the connecting plate 203 and the adjusting rod 204 remain in a relatively fixed state.

[0028] Furthermore, such as Figure 1-4 As shown, a fixed ring 208 is fixedly connected to the outer surface of the adjusting rod 204, and a spring 207 is fixedly connected to the movable jaw plate 102 and the fixed ring 208 respectively. Under the reset force of the spring 207, the slide rod 206 can slide out from the inside of the adjusting rod 204, so that the movable jaw plate 102 can reciprocate.

[0029] Furthermore, such as Figure 1-4 As shown, a guide rod 2 is fixedly connected to the opposite side of the inner wall of the square groove 103, and the slider 201 is fixedly connected to the guide rod 2. Through the above arrangement, the round rod 202 and the connecting plate 203 can be positioned.

[0030] Furthermore, such as Figure 1-4 As shown, a connecting block 3 is fixedly connected to the other side of the slider 201. Two insert rods 301 are symmetrically slidably connected to one side of the connecting block 3. Two round holes are opened on opposite sides of the housing 1. One end of the insert rod 301 is slidably connected inside the round hole. By pulling the insert rod 301 outward, it can be pulled out from inside the round hole, thus releasing the restriction on the connecting block 3.

[0031] Furthermore, such as Figure 1-4 As shown, a block 302 is fixedly connected to the other end of the insertion rod 301. A spring 304 is provided on the outer surface of the insertion rod 301. The spring 304 is fixedly connected to the connecting block 3 and the block 302 respectively. Under the reset force of the spring 304, a pulling force can be applied to the block 302, causing the insertion rod 301 to slide to one side.

[0032] Furthermore, such as Figure 1-4 As shown, a rotating rod 303 is rotatably connected to one side of the two blocks 302. A handle 306 is fixedly connected to one end of the rotating rod 303. By turning the handle 306 by hand, the rotating rod 303 can be rotated.

[0033] Furthermore, such as Figure 1-4 As shown, an eccentric wheel 305 is fixedly connected to the outer surface of the rotating rod 303. The outer surface of the eccentric wheel 305 is provided with anti-slip grooves in a circumferential array. By setting the eccentric wheel 305, when the eccentric wheel 305 rotates, it will apply a force to the connecting block 3, so that the eccentric wheel 305 is subjected to a reverse force. With the cooperation of the anti-slip grooves, the eccentric wheel 305 can be prevented from rotating.

[0034] Working principle: In use, when it is necessary to adjust the gap between the fixed jaw plate 101 and the movable jaw plate 102, the handle 306 is turned by hand to drive the rotating rod 303 and the eccentric wheel 305 to rotate. This causes the eccentric wheel 305 to contact the connecting block 3, and the eccentric wheel 305 is subjected to a reverse force, pushing the block 302 and the insertion rod 301 to move outward. This causes the insertion rod 301 to disengage from the inside of the round hole, releasing the limiting effect on the connecting block 3. Simultaneously, the spring 304 is stretched, and with the cooperation of the anti-slip groove, the eccentric wheel 305 can be locked with the connecting block 3, maintaining a relatively fixed state. By pulling handle 212 upwards by hand, the connecting bar 210 and the limiting rod 209 move upwards simultaneously, causing the limiting rod 209 to disengage from the inside of the adjusting hole 205, releasing the limiting of the connecting plate 203. Simultaneously, the second spring 211 is stretched, and then the adjusting rod 204 is pushed to one side, causing it to slide to one side along the inside of the connecting plate 203. Simultaneously, the sliding rod 206, the first spring 207, the fixing ring 208, and the moving jaw plate 102 move to one side, thus adjusting the gap between the fixed jaw plate 101 and the moving jaw plate 102. Through the elastic force of the first spring 207, without being subjected to significant force... When force is applied, it can prevent relative sliding between the slide rod 206 and the adjusting rod 204, so manual operation does not require much force and is easier, thereby improving the efficiency of adjusting the gap between the fixed jaw plate 101 and the moving jaw plate 102. Then, by releasing the handle 212, the limiting rod 209 is inserted into the other adjusting hole 205 under the reset force of the spring 211, keeping the adjusting rod 204 and the connecting plate 203 in a relatively fixed state. Then, by manually turning the handle 306, the eccentric wheel 305 is rotated at an appropriate angle, so that the eccentric wheel 305 gradually separates from the connecting block 3, making the eccentric wheel 305... As the reverse force on the 5 gradually decreases, the insertion rod 301 is inserted into the inside of the round hole under the reset force of the spring 304, thus limiting the connection block 3 and the slider 201. When the eccentric shaft mechanism of the jaw crusher drives the moving jaw plate 102 to swing back and forth, the slide rod 206 can slide back and forth along the inside of the adjusting rod 204, simultaneously compressing or stretching the spring 207, and causing the connecting plate 203 and the round rod 202 to rotate back and forth at an appropriate angle. This ensures that the moving jaw plate 102 can swing back and forth smoothly, and with the cooperation of the fixed jaw plate 101, it can perform crushing operations on the stone.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A jaw plate gap adjustment mechanism for stone crushing, comprising: A housing (1), wherein a fixed jaw plate (101) is fixedly connected to one side of the inner wall of the housing (1), and a movable jaw plate (102) is provided on one side of the inner wall of the housing (1), characterized in that it further includes: Two square grooves (103) are respectively opened on opposite sides of the housing (1). A slider (201) is slidably connected inside the square groove (103). A round rod (202) is rotatably connected to one side of the slider (201). A connecting plate (203) is fixedly connected to one end of the two round rods (202). A plurality of adjusting rods (204) are slidably connected to one side of the connecting plate (203). A sliding rod (206) is slidably connected to one end of the adjusting rod (204). 206) is fixedly connected to the moving jaw plate (102). A spring (207) is provided on the outer surface of the adjusting rod (204). Multiple limiting rods (209) are slidably connected to the top of the connecting plate (203). A connecting strip (210) is fixedly connected to one end of the multiple limiting rods (209). Multiple adjusting holes (205) are equidistantly opened on the outer surface of the adjusting rod (204). One end of the limiting rod (209) is slidably connected to the inside of one of the adjusting holes (205).

2. The jaw plate gap adjustment mechanism for stone crushing according to claim 1, characterized in that: The outer surface of the limiting rod (209) is provided with a second spring (211), which is fixedly connected to the connecting strip (210) and the connecting plate (203) respectively. The top of the connecting strip (210) is fixedly connected with a handle (212).

3. The jaw plate gap adjustment mechanism for stone crushing according to claim 1, characterized in that: A fixing ring (208) is fixedly connected to the outer surface of the adjusting rod (204), and the spring (207) is fixedly connected to the moving jaw plate (102) and the fixing ring (208) respectively.

4. The jaw plate gap adjustment mechanism for stone crushing according to claim 1, characterized in that: A guide rod (2) is fixedly connected to the opposite side of the inner wall of the square groove (103), and the slider (201) is fixedly connected to the guide rod (2).

5. The jaw plate gap adjustment mechanism for stone crushing according to claim 4, characterized in that: A connecting block (3) is fixedly connected to the other side of the slider (201). Two insert rods (301) are symmetrically slidably connected to one side of the connecting block (3). Two round holes are opened on opposite sides of the housing (1). One end of the insert rod (301) is slidably connected inside the round hole.

6. The jaw plate gap adjustment mechanism for stone crushing according to claim 5, characterized in that: The other end of the insertion rod (301) is fixedly connected to a block (302), and a spring three (304) is provided on the outer surface of the insertion rod (301). The spring three (304) is fixedly connected to the connecting block (3) and the block (302) respectively.

7. The jaw plate gap adjustment mechanism for stone crushing according to claim 6, characterized in that: A rotating rod (303) is rotatably connected to one side of the two blocks (302), and a handle (306) is fixedly connected to one end of the rotating rod (303).

8. The jaw plate gap adjustment mechanism for stone crushing according to claim 7, characterized in that: An eccentric wheel (305) is fixedly connected to the outer surface of the rotating rod (303), and the outer surface of the eccentric wheel (305) is provided with anti-slip grooves in a circumferential array.

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