Accelerator control device and underground internal combustion carry-scraper applying same
By designing a throttle control device including components such as pushback parts, pressing rods, connecting rods, limit bars, slot bars, triggers and locking rods, the problem of easy jamming of the throttle control device of the underground shovel engine is solved, and automatic reset is achieved, avoiding the engine speed loss and operating risks.
Patent Information
- Application Number
- CN202510437568.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2025-06-10
AI Technical Summary
The throttle control device of the underground shovel is prone to accidental contact and jamming, especially under high load and harsh working conditions, which leads to component losses and increased structural fit clearance, which leads to problems such as pedal jamming and engine speed loss.
A throttle control device is designed, including a control device, pushback member, pressing rod, connecting rod, limit bar, slot rod, trigger member and locking rod. When the throttle control device is stuck, the trigger member will automatically rebound, squeeze the limit bar, release the limit bar, and make the pushback member push the control device to reset, and force the rotation shaft to rotate through the locking rod to avoid jamming.
It effectively avoids the engine speed loss caused by the throttle control device being stuck, reduces the risk of the shovel collision with surrounding objects during underground operation, and ensures the safety of the operators and the normal order of mine production operations.
Smart Images
Figure CN120120125A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of throttle control devices, and particularly to a throttle control device and an underground internal combustion load-haul-dump machine applying the device. Background Art
[0002] A load-haul-dump machine is a kind of earth-moving and transporting machinery that uses a bucket to scrape soil and load the crushed soil into the bucket for transportation. When in use, the load-haul-dump machine usually sets an upper limit for its moving speed to avoid throttle control errors.
[0003] However, in the prior art, the throttle control device of an underground load-haul-dump machine usually has accidental touches and jams. Although the jamming situation is rare, the underground load-haul-dump machine operates under high load and harsh working conditions for a long time. The throttle control device of the throttle will make reciprocating movements frequently, resulting in the throttle control device constantly bearing friction. As the operation time increases, the surface of the components is continuously worn, and the structural fit clearance increases. When the clearance exceeds the normal range, the pedal will shake significantly during movement, which is extremely likely to cause jamming, and then cause the pedal to jam. At the same time, the bearings of the pedal are usually neglected in maintenance, so that the friction coefficient between the rolling elements and the raceway increases, and the rotational resistance increases significantly, seriously hindering the normal movement of the throttle control device, resulting in the occurrence of jamming faults. Moreover, in the underground mining environment, there are a large number of fine impurities such as dust and soil. During long-term operation, the impurities will invade the moving parts inside the bearing, making the original smooth mechanical movement become more and more sluggish and stuck. In addition, in the actual operation scenario, foreign objects with slightly larger volumes such as small stones and slag accidentally enter the area of the throttle control device and get stuck in the key moving parts of the throttle control device, resulting in the throttle control device being instantly jammed. And some underground load-haul-dump machines are equipped with vehicle mats. After long-term use of the vehicle mats and frequent operation of the pedal by the driver, the vehicle mats will shift, resulting in the vehicle mats covering the throttle control device, which will cause the throttle control device to be blocked and unable to return to its original position, causing the driver to lose control of the throttle, making it difficult to control the engine speed. And the underground roadway space is narrow and the environment is complex. The load-haul-dump machine will collide with the roadway wall, support structure and other operating equipment, which will cause partial collapse of the roadway, block the passage, make it difficult to carry out subsequent rescue and equipment repair work, seriously affect the production operation order of the entire mine, and cause serious physical injuries to the staff.
[0004] Therefore, a throttle control device and an underground internal combustion load-haul-dump machine applying the device are proposed, which can ensure automatic reset when the throttle control device is jammed. Summary of the Invention
[0005] The purpose of the present invention is to provide a throttle control device and an underground internal combustion load-haul-dump machine applying the device to solve the problem that the throttle control device is jammed and cannot be reset.
[0006] On the one hand, the present invention provides: a throttle control device, including a controller, the controller includes a bottom plate, and a pressing plate rotatably connected to the bottom plate. A pushing member is connected to the top of the bottom plate. A pressing rod is hinged to the bottom of the pressing plate. A connecting rod is rotatably connected to one side of the pressing rod. A limiting strip is slidably connected to the outside of the connecting rod. A groove rod is connected to the inside of the connecting rod. A triggering member is arranged on the top of the pushing member. A rotating shaft is rotatably connected to the top of the bottom plate. A torsion spring is connected between the bottom plate and the pressing rod. A locking rod is slidably connected to the top of the pushing member. A sensor and an anti-misoperation member are fixedly connected to the top of the bottom plate. The limiting strip is used to limit the groove rod. The rotating shaft is fixedly connected to the bottom of the pressing rod. One end of the rotating shaft extends into the sensor. The groove rod includes an initial state. When the groove rod is in the initial state, it intersects with the pushing member. When the limiting strip contacts the triggering member, the limitation of the groove rod is released, so that the pushing member pushes the controller to reset, and at the same time, the rotating shaft is forced to rotate back by the locking rod.
[0007] Further, the groove rod includes a straight rod slidably connected inside the connecting rod, round wheels fixedly connected to both sides of the straight rod, and a return spring connected between the connecting rod and the straight rod. A straight groove is formed on the straight rod. One end of the straight rod close to the pushing member is a through groove. The round wheels are located inside the connecting rod. Limiting grooves are formed on the round wheels.
[0008] Further, the pushing member includes a push rod slidably connected to the top of the bottom plate, a strong spring connected between the bottom plate and the push rod, a rotating wheel and a round bar rotatably connected inside the push rod. The rotating wheel is located above the round bar. The vertical central axes of the rotating wheel and the round bar coincide.
[0009] Further, two support frames are arranged on the top of the bottom plate. A guiding groove is formed on one side of the push rod close to the locking rod. The guiding groove is divided into an inclined section and a vertical section. The vertical section is located above the inclined section. Two sliding grooves are symmetrically formed on the push rod. The support frames are located inside the sliding grooves.
[0010] Further, a thin sheet is fixedly arranged on the outside of the rotating shaft close to the locking rod. A straight shaft is arranged on the top of the locking rod. An inclined sheet is arranged at a position of the locking rod close to the thin sheet. The straight shaft is located inside the vertical section.
[0011] Further, a return spring is connected between the limiting strip and the connecting rod. When one end of the limiting strip is located inside the limiting groove, the straight rod is in the initial state, and the round bar is located inside the straight groove, and at the same time, the rotating wheel is tangent to the bottom of the straight rod.
[0012] Furthermore, an arc groove is provided on the pressure plate, and the trigger member includes an arc frame fixedly connected to the top of the base plate, an arc spring rod connected to the inside of the arc frame, and an arc block fixedly connected to the outside of the arc spring rod. When the torsion spring is not deformed, the top end of the arc frame extends to the inside of the arc groove.
[0013] Furthermore, the arc frame and the arc spring rod are concentric with the connection points of the base plate and the pressure plate, the adjacent surfaces of the arc block and the return spring are both arc surfaces, the elastic coefficient of the arc spring rod is greater than that of the return spring, and when the torsion spring is not deformed, the arc block is always out of contact with the return spring.
[0014] Furthermore, a concave shaft is provided on one side of the pressure plate, and the concave shaft is concentric with the connection point between the pressure plate and the base plate. The anti-mis-touch component includes a support block fixedly connected to the base plate, a return spring connected to the inside of the support block, and a limit block fixedly connected to the return spring, and the concave shaft is located inside the support block.
[0015] On the other hand, the present invention proposes: an underground internal combustion shovel loader, including a throttle operating device and a shovel machine, wherein the shovel machine includes a machine body, a frame bucket fixedly connected to one side of the machine body, and a drive fixedly connected to the other side of the machine body, and the base plate is fixedly connected to the inside of the machine body.
[0016] Beneficial effects of the present invention: Through the trigger part, when the throttle control device is stuck and the pressure rod, connecting rod and other components cannot move, it automatically rebounds and contacts the limit bar, releasing the limit on the slot rod, so that the push-back part can push the manipulator to reset, effectively avoiding the engine speed loss caused by the throttle control device being stuck, reducing the risk of collision between the scraper and surrounding objects when working underground, ensuring the safety of the operators and the normal order of mine production operations, and maintaining high reliability and stability even for long-term operation in harsh environments, ensuring the normal operation of the throttle control device, and improving the operating efficiency of underground scrapers under harsh working conditions.
[0017] The trigger member can rebound quickly and automatically, squeezing the limit strip and releasing the limit on the slot rod. The strong spring then rebounds, pushing the push rod to reset the pressure plate. At the same time, the locking rod forces the shaft to rotate, effectively avoiding engine speed loss due to throttle jamming, greatly reducing the risk of collision between the scraper and surrounding objects when working underground, and ensuring the safety of operators and production order.
[0018] Through the cooperation of the concave shaft and the limit block, the operator is given resistance feedback and reminded through the collision sound when stepping on the pressure plate for the first time, which effectively prevents the automatic reset mechanism from being triggered by misoperation and improves the accuracy and stability of the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1Isometric view of the grader of the present invention; Figure 2 Schematic structural view of the controller of the present invention; Figure 3 Schematic view of the throttle control device of the present invention; Figure 4 Partial cross-sectional view of the throttle control device of the present invention; Figure 5 Schematic structural view of the groove rod of the present invention; Figure 6 Schematic structural view of the trigger member of the present invention; Figure 7 Schematic structural view of the back-pushing member of the present invention; Figure 8 Front view of the controller of the present invention; Figure 9 For the present invention Figure 8 Enlarged schematic view at position B in
[0020] In the figure: 1. Grader; 101. Body; 102. Frame bucket; 103. Driver; 2. Controller; 21. Bottom plate; 211. Support frame; 22. Pressing plate; 221. Arc groove; 222. Concave shaft; 3. Back-pushing member; 31. Back-pushing rod; 311. Guide groove; 301. Inclined section; 302. Vertical section; 312. Sliding groove; 32. Strong spring; 33. Runner; 34. Round bar; 4. Pressing rod; 5. Connecting rod; 6. Limit bar; 61. Return spring; 7. Groove rod; 71. Straight rod; 711. Straight groove opening; 712. Through groove; 72. Round wheel; 721. Limit groove; 73. Return spring; 8. Trigger member; 81. Arc-shaped frame; 82. Arc-shaped spring rod; 83. Arc block; 9. Rotating shaft; 91. Thin plate; 10. Torsion spring; 11. Locking rod; 111. Straight shaft; 112. Inclined piece; 12. Sensor; 13. Anti-misoperation member; 131. Support block; 132. Return spring; 133. Limit block. Detailed implementation manners
[0021] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.
[0022] Example 1, refer to Figures 1 - 9, which is the first embodiment of the present invention, provides a throttle control device, including a manipulator 2. The manipulator 2 includes a bottom plate 21 and a pressing plate 22 rotatably connected to the bottom plate 21. A pushing member 3 is connected to the top of the bottom plate 21. A pressing rod 4 is hinged to the bottom of the pressing plate 22. A connecting rod 5 is rotatably connected to one side of the pressing rod 4. A limiting strip 6 is slidably connected to the outside of the connecting rod 5. A groove rod 7 is connected to the inside of the connecting rod 5. A triggering member 8 is provided at the top of the pushing member 3. A rotating shaft 9 is rotatably connected to the top of the bottom plate 21. A torsion spring 10 is connected between the bottom plate 21 and the pressing rod 4. A locking rod 11 is slidably connected to the top of the pushing member 3. A sensor 12 and an anti-misoperation member 13 are fixedly connected to the top of the bottom plate 21. The limiting strip 6 is used to limit the groove rod 7. The rotating shaft 9 is fixedly connected to the bottom of the pressing rod 4. One end of the rotating shaft 9 extends into the sensor 12. The groove rod 7 includes an initial state. When the groove rod 7 is in the initial state, it intersects with the pushing member 3. When the staff lifts their foot and the throttle control device gets stuck and cannot move back, that is, at this time the pressing rod 4 cannot move back, and thus the connecting rod 5, the limiting strip 6 and the groove rod 7 cannot move either. At this time, the working triggering member 8 will automatically rebound, and the triggering member 8 will squeeze and contact the limiting strip 6. When the limiting strip 6 contacts the triggering member 8, the limitation on the groove rod 7 is released, so that the pushing member 3 pushes the manipulator 2 to reset. At the same time, the rotating shaft 9 is forced to rotate back by the locking rod 11 to avoid jamming, ensuring the accurate reset action of the device.
[0023] Specifically, when the driver operates the throttle pedal normally and presses down the pressing plate 22, the pressing rod 4 rotates around the hinge point with the pressing plate 22, driving the connecting rod 5 to move. During the movement of the connecting rod 5, the groove rod 7 maintains a relatively stable position under the limiting action of the limiting strip 6. At the same time, at this time the groove rod 7 intersects with the pushing member 3, and thus the groove rod 7 is limited by the pushing member 3 at the same time, and the groove rod 7 also limits the pushing member 3. The triggering member 8 will also be compressed when the pressing plate 22 is pressed down. As the rotating shaft 9 rotates, the sensor 12 transmits the monitored rotation signal to the internal combustion engine, and the internal combustion engine adjusts the output power of the engine in real time accordingly to control the vehicle speed. It can be understood that the sensor 12 controls the rotation of the throttle motor crank by relying on the magnitude of the input signal received, and then controls the throttle size. When the rotating shaft 9 rotates, it will cause the change of the contact position in the sensor 12 to stably output the signal value.
[0024] Refer to Figures 2 - 5, the slot rod 7 includes a straight rod 71 slidably connected inside the connecting rod 5, round wheels 72 fixedly connected to both sides of the straight rod 71, and a return spring 73 connected between the connecting rod 5 and the straight rod 71. A straight slot 711 is provided on the straight rod 71, and one end of the straight rod 71 close to the pushing member 3 is a through slot 712, that is, one end of the straight slot 711 is open, so that the pushing member 3 can pass through the through slot 712, and then the pushing member 3 is separated from the straight rod 71. The round wheels 72 are located inside the connecting rod 5, and a limiting slot 721 is provided on the round wheels 72. The round wheels 72 on both sides of the straight rod 71 are located inside the connecting rod 5. When the straight rod 71 is in the initial state, the return spring 73 is in a stretched state. At the same time, at this time, the limiting strip 6 passes through the limiting slot 721, so that the straight rod 71 is limited and cannot move. Therefore, when the straight rod 71 is limited by the limiting strip 6, it is in the initial state. When the limiting of the straight rod 71 is released after the limiting strip 6 is pressed, the return spring 73 contracts and pulls the straight rod 71, so that the straight rod 71 leaves the initial state.
[0025] Refer to Figures 2 - 7 , the pushing member 3 includes a push rod 31 slidably connected to the top of the bottom plate 21, a strong spring 32 connected between the bottom plate 21 and the push rod 31, a rotating wheel 33 and a round bar 34 rotatably connected inside the push rod 31. The rotating wheel 33 is located above the round bar 34, and the vertical central axes of the rotating wheel 33 and the round bar 34 coincide.
[0026] Specifically, since the straight rod 71 blocks the push rod 31, the push rod 31 is limited, and the strong spring 32 is in a compressed state. After the limit of the push rod 31 is released, the strong spring 32 rebounds, so that the push rod 31 pushes the pressing plate 22 to reset. At the same time, during the upward pushing process of the pushing member 3, the locking rod 11 forces the rotating shaft 9 to rotate back. During this process, the sensor 12 continuously monitors the rotation of the rotating shaft 9. Once the rotating shaft 9 rotates back, making the vehicle no longer driven, the braking structure can be cooperated for braking.
[0027] Refer to Figures 3 - 9 , two support frames 211 are provided on the top of the bottom plate 21. A guiding slot 311 is provided on one side of the push rod 31 close to the locking rod 11. The guiding slot 311 is divided into an inclined section 301 and a vertical section 302. The vertical section 302 is located above the inclined section 301. Two sliding slots 312 are symmetrically provided on the push rod 31, and the support frames 211 are located inside the sliding slots 312.
[0028] Refer to Figures 2 - 6 , a thin sheet 91 is fixedly provided on the outside of the rotating shaft 9 close to the locking rod 11. When the rotating shaft 9 rotates, it will drive the thin sheet 91 to rotate towards the position of the locking rod 11. A straight shaft 111 is provided at the top of the locking rod 11, and an inclined sheet 112 is provided at the position of the locking rod 11 close to the thin sheet 91. The straight shaft 111 is located inside the vertical section 302.
[0029] Specifically, when the return push rod 31 moves upward, the inclined section 301 of the guiding groove 311 can guide the locking rod 11 to translate. That is, when the return push rod 31 moves upward, the straight shaft 111 located in the guiding groove 311 will be pressed, thereby causing the locking rod 11 to translate, making the inclined piece 112 of the locking rod 11 squeeze the thin piece 91, causing the thin piece 91 to be pressed and rotate, and making the rotating shaft 9 rotate and reset. In addition, two sliding grooves 312 are symmetrically formed on the return push rod 31, and the support frame 211 is located inside the sliding grooves 312. The inner walls of the sliding grooves 312 and the guiding groove 311 are smoothed. The support frame 211 supports and positions the return push rod 31 to ensure that the return push rod 31 can only move vertically up and down.
[0030] Referring to Figures 2 - 7 , a return spring 61 is connected between the limiting strip 6 and the connecting rod 5. When one end of the limiting strip 6 is located inside the limiting groove 721, the straight rod 71 is in the initial state. When the pressing plate 22 is stepped on by the operator, the pressing plate 22 rotates with the bottom plate 21 as the support. At this time, the pressing plate 22 also causes the pressing rod 4 to rotate around the rotating shaft 9. The pressing rod 4 will pull, and the limiting strip 6, the connecting rod 5 and the straight rod 71 move synchronously. The vertical central axes of the rotating wheel 33 and the round bar 34 coincide. At this time, the round bar 34 is located inside the straight groove opening 711, and at the same time, the rotating wheel 33 is tangent to the bottom of the straight rod 71, so that the straight rod 71 is always restricted by the rotating wheel 33 and the round bar 34 when being pulled, and the restriction point is between the rotating wheel 33 and the round bar 34, so as to ensure that the straight rod 71 is always located above the return push rod 31, and both the rotating wheel 33 and the round bar 34 can rotate, without hindering the translation of the straight rod 71, ensuring that the return push rod 31 will not be accidentally triggered and ensuring sufficient stability.
[0031] Referring to Figures 1 - 8 , an arc groove 221 is formed on the pressing plate 22. The trigger member 8 includes an arc-shaped frame 81 fixedly connected to the top of the bottom plate 21, an arc-shaped spring rod 82 connected inside the arc-shaped frame 81, and an arc block 83 fixedly connected to the outside of the arc-shaped spring rod 82. When the torsion spring 10 is not deformed, the top end of the arc-shaped frame 81 extends into the arc groove 221.
[0032] Referring to Figures 1 - 9 , the connection points of the arc-shaped frame 81 and the arc-shaped spring rod 82 with the bottom plate 21 and the pressing plate 22 are concentric. The adjacent surfaces of the arc block 83 and the return spring 61 are both arc surfaces. The elastic coefficient of the arc-shaped spring rod 82 is greater than that of the return spring 61. When the torsion spring 10 is not deformed, the arc block 83 never contacts the return spring 61, and there is a gap between the two at this time, avoiding the contact between the arc-shaped spring rod 82 and the torsion spring 10 due to the short time difference during their rebound and reset.
[0033] Specifically, the arc-shaped spring rod 82 is restricted by the arc-shaped frame 81. When the pressure plate 22 is pressed and rotated, since the top of the arc-shaped spring rod 82 is located in the arc groove 221 at this time, the arc-shaped spring rod 82 will also be pressed synchronously. It will contract at the circular edge position with the connection point of the bottom plate 21 and the pressure plate 22 as the center of the circle. And at this time, the pressure rod 4 will drive the connecting rod 5 and the limiting strip 6 to move synchronously. Furthermore, the arc block 83 outside the arc-shaped spring rod 82 will move as it rotates with the arc-shaped spring rod 82 and will not contact the limiting strip 6. When the throttle control device gets stuck or jammed, the torsion spring 10 and the pressure plate 22 cannot move back normally. At this time, the arc-shaped spring rod 82 will rebound under the action of its own elastic potential energy, driving the arc block 83 to move quickly. Since the limiting strip 6 is stopped and the elastic coefficient of the arc-shaped spring rod 82 is greater than that of the return spring 61, the arc block 83 will squeeze the arc surface of the limiting strip 6, causing the limiting strip 6 to translate. The limiting strip 6 moves out of the limiting groove 721. Therefore, the limiting strip 6 no longer acts on the straight rod 71. The straight rod 71 will be pulled by the return spring 73. The round bar 34 located inside the straight groove opening 711 will separate from the straight rod 71 at the position of the through groove 712. The straight rod 71 moves away from above the return push rod 31, thereby triggering the automatic reset mechanism to ensure that the throttle control device can be reset in time.
[0034] Referring to Figures 1 - 9 , the anti-misoperation member 13 reduces the misoperation of the operator during normal operation. A concave shaft 222 is provided on one side of the pressure plate 22. The concave shaft 222 and the connection point of the pressure plate 22 and the bottom plate 21 are concentric. The anti-misoperation member 13 includes a support block 131 fixedly connected to the bottom plate 21, a return spring 132 connected inside the support block 131, and a limiting block 133 fixedly connected to the return spring 132. The concave shaft 222 is located inside the support block 131.
[0035] Specifically, when the pressure plate 22 rotates, the concave shaft 222 will also rotate synchronously. And the limiting block 133 is located at the concave position of the concave shaft 222, so that when the pressure plate 22 is stepped on for the first time, it will be blocked by the return spring 132. At the same time, a collision sound can be generated when the concave shaft 222 separates from and engages with the limiting block 133, thereby reminding the staff and reducing the normal operation of the work affected by accidental triggering of the reset, improving the accuracy and stability of the operation.
[0036] Embodiment 2, referring to Figures 1 - 9 , which is the second embodiment of the present invention. It provides an underground internal combustion load-haul-dump machine, including a throttle control device, and also including a loader 1. The loader 1 includes a machine body 101, a frame bucket 102 fixedly connected to one side of the machine body 101, and a driver 103 fixedly connected to the other side of the machine body 101. The bottom plate 21 is fixedly connected inside the machine body 101.
[0037] The working principle of the present invention is as follows: When the driver normally operates the accelerator pedal to press down the pressing plate 22, the pressing plate 22 rotates around the rotation connection point with the bottom plate 21. The pressing plate 22 drives the pressing rod 4 hinged thereto to rotate around the rotating shaft 9 as the center, so that the rotating shaft 9 controls the vehicle speed through the sensor 12, and then pulls the connecting rod 5 to move. When the connecting rod 5 moves, it will drive the slot rod 7 and the limiting strip 6 as a whole to translate. As the pressing plate 22 is pressed down, the round bar 34 is located in the straight slot 711 at this time, and the runner 33 is tangent to the bottom of the straight rod 71, ensuring that the straight rod 71 is always above the return push rod 31 during the movement process. The arc-shaped spring rod 82 is also affected by the pressing, and contracts in the arc-shaped frame 81 with the connection point between the bottom plate 21 and the pressing plate 22 as the center. The arc block 83 and the limiting strip 6 move simultaneously, and thus they will not come into contact. At the same time, when the pressing plate 22 rotates, the concave shaft 222 on one side of it rotates synchronously. The limiting block 133 of the anti-misoperation member 13 is located at the sunken position of the concave shaft 222. When the pressing plate 22 is pressed for the first time, the operator can feel the resistance of the return spring 132; When the staff member lifts the foot, if the throttle control device gets stuck and the pressing plate 22 cannot move back, the pressing rod 4, the connecting rod 5, the limiting strip 6 and the slot rod 7 as a whole cannot move either. But at this time, the arc-shaped spring rod 82 rebounds under the action of its own elastic potential energy, driving the arc block 83 to move quickly. Since the elastic coefficient of the arc-shaped spring rod 82 is greater than that of the return spring 61 and the limiting strip 6 is in a stopped state, the arc block 83 will squeeze the arc surface of the limiting strip 6. Under the extrusion of the arc block 83, the limiting strip 6 squeezes the elastic force of the return spring 61 to translate, and one end of it moves out of the limiting slot 721, releasing the limitation on the straight rod 71. Under the contraction pulling force of the return spring 73, the straight rod 71 moves quickly in the connecting rod 5 and leaves the initial state. The round bar 34 located in the straight slot 711 separates from the straight rod 71 from the through slot 712 position, and the straight rod 71 leaves above the return push rod 31, and the limitation of the return push rod 31 is released. After the limitation of the return push rod 31 is released, the strong spring 32 rebounds quickly, pushing the return push rod 31 to move upward. When the return push rod 31 moves upward, the inclined section 301 of its guiding slot 311 guides the locking rod 11 to translate. The straight shaft 111 at the top of the locking rod 11 is pressed in the guiding slot 311, causing the locking rod 11 to translate. Its inclined piece 112 squeezes the thin piece 91 outside the rotating shaft 9, forcing the thin piece 91 to drive the rotating shaft 9 to rotate and reset, and at the same time generating a barrier to the thin piece 91, and the return push rod 31 pushes the pressing plate 22 to move back upward to achieve overall reset and locking. It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.
Claims
1. A throttle control device, comprising a manipulator (2), characterized in that: The manipulator (2) comprises a base plate (21) and a pressure plate (22) rotatably connected to the base plate (21); a push-back member (3) is connected to the top of the base plate (21); a pressure rod (4) is hinged at the bottom of the pressure plate (22); a connecting rod (5) is rotatably connected to one side of the pressure rod (4); the outside of the connecting rod (5) is slidably connected to a limit strip (6); the inside of the connecting rod (5) is connected to a groove rod (7); a trigger member (8) is provided on the top of the push-back member (3); the top of the base plate (21) is rotatably connected to a rotating shaft (9); the base plate (21) and the pressure plate (22) are rotatably connected to the pressure plate (21); A torsion spring (10) is connected between the pressure rods (4), the top of the push-back member (3) is slidably connected to a locking rod (11), the limit strip (6) is used to limit the slot rod (7), the rotating shaft (9) is fixedly connected to the bottom of the pressure rod (4), the slot rod (7) includes an initial state, the slot rod (7) intersects with the push-back member (3) when in the initial state, and the limit strip (6) releases the limit on the slot rod (7) when in contact with the trigger member (8), so that the push-back member (3) pushes the manipulator (2) to reset, and at the same time forces the rotating shaft (9) to rotate through the locking rod (11).
2. A throttle control device according to claim 1, characterized in that: The slot rod (7) comprises a straight rod (71) slidably connected to the inside of the connecting rod (5), round wheels (72) fixedly connected to both sides of the straight rod (71), and a return spring (73) connected between the connecting rod (5) and the straight rod (71); a straight slot (711) is provided on the straight rod (71); one end of the straight rod (71) close to the push-back member (3) is a through slot (712); the round wheel (72) is located inside the connecting rod (5); and a limiting slot (721) is provided on the round wheel (72).
3. A throttle control device according to claim 2, characterized in that: The push-back member (3) comprises a push-back rod (31) slidably connected to the top of the bottom plate (21), a strong spring (32) connected between the bottom plate (21) and the push-back rod (31), and a rotating wheel (33) and a round bar (34) rotatably connected inside the push-back rod (31), wherein the rotating wheel (33) is located above the round bar (34), and the vertical center axis of the rotating wheel (33) coincides with the vertical center axis of the round bar (34).
4. A throttle control device according to claim 3, characterized in that: Two support frames (211) are arranged on the top of the bottom plate (21); a guide groove (311) is provided on a side of the push-back rod (31) close to the locking rod (11); the guide groove (311) is divided into an oblique section (301) and a vertical section (302); the vertical section (302) is located above the oblique section (301); two sliding grooves (312) are symmetrically provided on the push-back rod (31); and the support frame (211) is located inside the sliding groove (312).
5. A throttle control device according to claim 1, characterized in that: A thin sheet (91) is fixedly arranged on the outside of the rotating shaft (9) near the locking rod (11), a straight shaft (111) is arranged on the top of the locking rod (11), an inclined sheet (112) is arranged on the locking rod (11) near the thin sheet (91), and the straight shaft (111) is located inside the vertical section (302).
6. A throttle control device according to claim 3, characterized in that: A return spring (61) is connected between the limit bar (6) and the connecting rod (5). When one end of the limit bar (6) is located inside the limit groove (721), the straight rod (71) is located in an initial state, and the round bar (34) is located inside the straight groove (711). At the same time, the rotating wheel (33) is tangent to the bottom of the straight rod (71).
7. A throttle control device according to claim 6, characterized in that: The pressure plate (22) is provided with an arc groove (221), and the trigger member (8) comprises an arc frame (81) fixedly connected to the top of the bottom plate (21), an arc spring rod (82) connected to the inside of the arc frame (81), and an arc block (83) fixedly connected to the outside of the arc spring rod (82); when the torsion spring (10) is not deformed, the top end of the arc frame (81) extends to the inside of the arc groove (221).
8. A throttle control device according to claim 7, characterized in that: The arc frame (81) and the arc spring rod (82) are concentric with the connection point of the bottom plate (21) and the pressure plate (22); the adjacent surfaces of the arc block (83) and the return spring (61) are both arc surfaces; the elastic coefficient of the arc spring rod (82) is greater than that of the return spring (61); and when the torsion spring (10) is not deformed, the arc block (83) is always out of contact with the return spring (61).
9. A throttle control device according to claim 1, characterized in that: The top of the bottom plate (21) is fixedly connected to a sensor (12) and an anti-false touch member (13); one end of the rotating shaft (9) extends to the inside of the sensor (12); a concave shaft (222) is provided on one side of the pressure plate (22); the concave shaft (222) and a connection point between the pressure plate (22) and the bottom plate (21) are concentric; the anti-false touch member (13) comprises a support block (131) fixedly connected to the bottom plate (21); a return spring (132) connected to the inside of the support block (131); and a limit block (133) fixedly connected to the return spring (132); the concave shaft (222) is located inside the support block (131).
10. An underground internal combustion scraper, characterized in that: The invention comprises the throttle operating device according to claim 1, and also comprises a shovel (1), wherein the shovel (1) comprises a machine body (101), a frame bucket (102) fixedly connected to one side of the machine body (101), and a driver (103) fixedly connected to the other side of the machine body (101), and the base plate (21) is fixedly connected to the inside of the machine body (101).