Elevator overspeed governor action speed detection stand

Abstract

The utility model discloses elevator speed governor action speed detection platform, including quick locking assembly, quick locking assembly includes concave strip and convex strip, the outer ring of main shaft rod four -around fixed installation concave strip, the outer ring of external connection axle four -around fixed connection convex strip, convex strip protruding end activity joint concave strip groove end, quick locking assembly still includes rectangular groove, dismounting spring, clamping block and clamping groove, the middle part of convex strip is seted up rectangular groove, and dismounting spring and clamping block are connected in rectangular groove, and clamping block is located above dismounting spring, and the middle part of concave strip is seted up clamping groove, and clamping block is connected in clamping groove. The utility model can guarantee the concentricity of main shaft rod and external connection axle through the accurate matching of geometric shape, reduce the eccentric problem of shafting caused by bolt hole error or uneven assembly, reduce additional radial force and vibration, make motor output speed more stable, thereby improve the precision of speed governor action speed detection.

Description

Technical Field

[0001] This utility model relates to the field of elevator speed governor detection technology, specifically an elevator speed governor operating speed detection platform. Background Technology

[0002] The speed governor is a key device in the elevator safety protection system. When the elevator's running speed exceeds a certain percentage (such as 115%) of the rated speed, the speed governor will be triggered and drive the safety clamp to stop the elevator via the wire rope. The testing platform simulates the elevator's running speed and drives the speed governor to rotate. When the speed reaches the set threshold, the triggering action of the speed governor is monitored to determine whether its action speed meets the specifications.

[0003] In existing speed testing platforms, the motor output shaft and the speed limiter shaft are usually secured with bolts. However, bolted connections require flanges or connecting plates to fix the two shafts. If there are machining errors in the bolt holes or uneven tightening during assembly, the axes of the two shafts may become misaligned. This concentricity deviation will cause additional radial force and vibration in the shaft system during testing, resulting in unstable motor output speed and affecting the accuracy of speed limiter operation speed testing. Therefore, a new structure is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide an elevator speed governor operating speed detection platform to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model is an elevator speed governor operating speed detection platform, comprising:

[0006] The detection assembly includes a workbench, a speed limiter housing, a speed limiter body, a main shaft, an external shaft, a motor, and a first hydraulic cylinder. The speed limiter housing is movably placed on the top of the workbench. The speed limiter body is movably connected to the speed limiter housing via the main shaft. One end of the external shaft is movably connected to the side of the main shaft. The other end of the external shaft is fixedly connected to the motor output end. One end of the first hydraulic cylinder is fixedly connected to the workbench, and the other end of the first hydraulic cylinder is fixedly connected to the motor.

[0007] A quick-locking assembly includes a concave strip and a convex strip. The concave strip is fixedly installed around the outer ring of the main shaft, and the convex strip is fixedly connected around the outer ring of the external shaft. The protruding end of the convex strip is movably engaged with the groove end of the concave strip.

[0008] Furthermore, the quick-locking component also includes a rectangular groove, a disassembly spring, a locking block, and a locking slot. The rectangular groove is formed in the middle of the protruding strip, and the disassembly spring and the locking block are movably connected in the rectangular groove. The locking block is located above the disassembly spring. The locking slot is formed through the middle of the concave strip, and the locking block is movably engaged in the locking slot.

[0009] Furthermore, the top of the card block is designed with a sloping structure.

[0010] Furthermore, the quick-locking component also includes a limiting groove and a limiting block. The rectangular groove has limiting grooves on both sides, the locking block is fixedly connected to both sides, and the limiting block is movably connected in the limiting groove.

[0011] Furthermore, the detection assembly also includes a second hydraulic cylinder and a clamping plate. One end of the second hydraulic cylinder is fixedly connected to both ends of the worktable, and the other end of the second hydraulic cylinder is fixedly connected to the clamping plate. The speed limiter housing is clamped and connected between the clamping plates.

[0012] Furthermore, it also includes a quick-release assembly, which includes an L-shaped plate, a T-shaped rod, and a top block. The L-shaped plate is fixedly connected to the concave strip, the T-shaped rod is movably inserted into the L-shaped plate, the bottom of the T-shaped rod is fixedly connected to the top block, and the top block is movably connected to a locking block.

[0013] Furthermore, the quick-release assembly also includes a limiting spring, with the limiting spring movably sleeved on the outer side of the T-shaped rod. There are a total of two limiting springs, located at the upper and lower ends of the L-shaped plate, respectively.

[0014] This utility model has the following beneficial effects:

[0015] This invention, by opening the first hydraulic cylinder, can drive the motor to move, thereby engaging the convex strip with the concave strip. At this time, the locking block in the convex strip, with the cooperation of the disassembly and assembly spring, can automatically lock into the locking groove on the concave strip, thereby achieving rapid locking between the external shaft and the main shaft. The above structure ensures the concentricity of the main shaft and the external shaft through precise matching of geometric shapes, reduces shaft eccentricity problems caused by bolt hole errors or uneven assembly, reduces additional radial force and vibration, and makes the motor output speed more stable, thereby improving the accuracy of speed limiter action speed detection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the overall design of this utility model;

[0018] Figure 2 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of the concave strip connection of this utility model;

[0020] Figure 4 This is a schematic diagram of the convex strip connection of this utility model;

[0021] Figure 5 This is a schematic diagram of the top block connection from the front view of this utility model;

[0022] Figure 6 This is a schematic diagram of the limiting spring connection of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 101. Workbench; 102. Speed ​​governor housing; 103. Speed ​​governor body; 104. Main spindle; 105. External shaft; 106. Motor; 107. First hydraulic cylinder; 108. Second hydraulic cylinder; 109. Clamping plate;

[0025] 201. Concave strip; 202. Convex strip; 203. Rectangular groove; 204. Removable spring; 205. Locking block; 206. Locking groove; 207. Limiting groove; 208. Limiting block;

[0026] 301. L-shaped plate; 302. T-shaped rod; 303. Top block; 304. Limiting spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Please see Figure 1-6 As shown, this utility model is an elevator speed governor operating speed detection platform, comprising:

[0030] The detection assembly includes a workbench 101, a speed limiter housing 102, a speed limiter body 103, a main spindle 104, an external shaft 105, a motor 106, and a first hydraulic cylinder 107. The speed limiter housing 102 is movably placed on the top of the workbench 101. The speed limiter body 103 is movably connected to the speed limiter housing 102 via the main spindle 104. One end of the external shaft 105 is movably connected to the side of the main spindle 104. The other end of the external shaft 105 is fixedly connected to the output end of the motor 106. One end of the first hydraulic cylinder 107 is fixedly connected to the workbench 101. The other end of the first hydraulic cylinder 107 is fixedly connected to the motor 106.

[0031] The quick-locking assembly includes a concave strip 201 and a convex strip 202. The concave strip 201 is fixedly installed around the outer ring of the main shaft 104, and the convex strip 202 is fixedly connected around the outer ring of the external shaft 105. The protruding end of the convex strip 202 is movably engaged with the groove end of the concave strip 201.

[0032] The speed limiter housing 102, speed limiter body 103, and main shaft 104 together form the speed limiter as a whole. The external shaft 105 provides a guarantee for the connection of the output end of the motor 106 to the main shaft 104. The motor 106 provides a guarantee for the rotation of the speed limiter body 103, thereby simulating speed. The first hydraulic cylinder 107 provides a guarantee for the movement of the motor 106 and the shaft 105. The protruding end of the convex strip 202 engages with the groove end of the concave strip 201, which provides a guarantee for the shaft 105 to drive the main shaft 104 and the speed limiter body 103 to rotate.

[0033] The quick-locking assembly also includes a rectangular groove 203, a disassembly spring 204, a locking block 205, and a locking slot 206. The rectangular groove 203 is opened in the middle of the protruding strip 202, and the disassembly spring 204 and the locking block 205 are movably connected in the rectangular groove 203. The locking block 205 is located above the disassembly spring 204. The locking slot 206 is opened through the middle of the concave strip 201, and the locking block 205 is movably engaged in the locking slot 206. The top of the locking block 205 is set with a sloping structure.

[0034] The rectangular slot 203 provides a guarantee for the movable connection of the disassembly spring 204 and the locking block 205. The disassembly spring 204 provides a guarantee for the locking block 205 to be inserted into the slot 206. The shape of the locking block 205 provides a guarantee for its easy insertion into the slot 206.

[0035] The quick-locking component also includes a limiting groove 207 and a limiting block 208. The rectangular groove 203 has limiting grooves 207 on both sides, the locking block 205 is fixedly connected to the limiting block 208 on both sides, and the limiting block 208 is movably connected in the limiting groove 207.

[0036] The limiting groove 207 and the limiting block 208 work together to limit the movement range of the locking block 205 and prevent it from detaching from the protrusion 202.

[0037] The detection assembly also includes a second hydraulic cylinder 108 and a clamping plate 109. The two ends of the worktable 101 are fixedly connected to one end of the second hydraulic cylinder 108, and the other end of the second hydraulic cylinder 108 is fixedly connected to the clamping plate 109. The clamping plates 109 clamp and connect the speed limiter housing 102.

[0038] The second hydraulic cylinder 108 is used to drive the clamping plates 109 at both ends to move, thereby clamping and fixing the speed limiter housing 102.

[0039] Working principle: The speed limiter housing 102, connected to the speed limiter body 103 and the main shaft 104, is placed on the worktable 101. Then, the second hydraulic cylinder 108 is opened, pushing the clamping plates 109 at both ends toward the speed limiter housing 102 until it is firmly clamped. Then, the first hydraulic cylinder 107 is opened, driving the motor 106 and the external shaft 105 to move. At this time, the protruding end of the convex strip 202 is inserted into the groove end of the concave strip 201. During the movement, when the locking block 205 is under pressure, it enters the rectangular groove 2 with the cooperation of its inclined surface. In step 03, the disassembly spring 204 is compressed. When the locking block 205 moves horizontally to the position of the locking groove 206, the disassembly spring 204 returns to its original position, pushing the locking block 205 into the locking groove 206, thus achieving a firm lock between the external shaft 105 and the main shaft 104. Then, the motor 106 is turned on, and with the cooperation of the external shaft 105 and the main shaft 104, the speed limiter body 103 is driven to rotate. Subsequently, the speed is detected by an external speed detection device. This step improves the accuracy of the speed limiter's operating speed detection.

[0040] Please see Figure 1-6 As shown, this embodiment, based on the above embodiment, further includes:

[0041] The quick-disassembly assembly includes an L-shaped plate 301, a T-shaped rod 302, and a top block 303. The L-shaped plate 301 is fixedly connected to the concave strip 201, the T-shaped rod 302 is movably inserted into the L-shaped plate 301, the bottom of the T-shaped rod 302 is fixedly connected to the top block 303, and the top block 303 is movably connected to the locking block 205.

[0042] The L-shaped plate 301 provides a guarantee for the movable connection of the T-shaped rod 302, which is used to push the top block 303 downward to push the locking block 205.

[0043] The quick-release assembly also includes a limiting spring 304. The limiting spring 304 is movably sleeved on the outside of the T-shaped rod 302. There are a total of two limiting springs 304, located at the upper and lower ends of the L-shaped plate 301 respectively.

[0044] The limiting spring 304 is designed to limit the movement of the top block 303, preventing it from wobbling when rotating, and thus preventing it from arbitrarily squeezing the locking block 205.

[0045] Working principle: When disassembly is required after inspection, first close the second hydraulic cylinder 108 to move the clamping plate 109 away from the speed limiter housing 102. Then press the T-shaped rod 302 to drive the top block 303 to press down on the locking block 205. When the locking block 205 is completely disengaged from the slot 206, the speed limiter housing 102 is pulled backward to disengage the main shaft 104 from the external shaft 105. At this time, the two limit springs 304 are compressed by compression. After inspection, this step can be completed by simply pressing the T-shaped rod 302 to achieve quick disassembly and separation without the need for external tools, greatly increasing the convenience of disassembly and separation. At the same time, the limit springs 304 can limit the top block 303 during this process to prevent it from sliding freely and causing adverse effects.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An elevator speed governor operating speed detection platform, characterized in that, include: The detection assembly includes a workbench (101), a speed limiter housing (102), a speed limiter body (103), a main shaft (104), an external shaft (105), a motor (106), and a first hydraulic cylinder (107). The speed limiter housing (102) is movably placed on the top of the workbench (101). The speed limiter body (103) is movably connected to the speed limiter housing (102) via the main shaft (104). One end of the external shaft (105) is movably connected to the side of the main shaft (104). The other end of the external shaft (105) is fixedly connected to the output end of the motor (106). One end of the first hydraulic cylinder (107) is fixedly connected to the workbench (101), and the other end of the first hydraulic cylinder (107) is fixedly connected to the motor (106). A quick-locking assembly includes a concave strip (201) and a convex strip (202). The concave strip (201) is fixedly installed around the outer ring of the main shaft (104), and the convex strip (202) is fixedly connected around the outer ring of the external shaft (105). The protruding end of the convex strip (202) is movably engaged with the groove end of the concave strip (201).

2. The elevator speed governor operating speed detection platform according to claim 1, characterized in that: The quick-locking assembly also includes a rectangular groove (203), a disassembly spring (204), a locking block (205), and a locking slot (206). The rectangular groove (203) is opened in the middle of the protruding strip (202). The disassembly spring (204) and the locking block (205) are movably connected in the rectangular groove (203). The locking block (205) is located above the disassembly spring (204). The locking slot (206) is opened through the middle of the concave strip (201). The locking block (205) is movably engaged in the locking slot (206).

3. The elevator speed governor operating speed detection platform according to claim 2, characterized in that: The top of the card block (205) is set with a sloping structure.

4. The elevator speed governor operating speed detection platform according to claim 2, characterized in that: The quick-locking component also includes a limiting groove (207) and a limiting block (208). The limiting groove (207) is opened on both sides of the rectangular groove (203). The limiting block (208) is fixedly connected to both sides of the locking block (205). The limiting block (208) is movably connected in the limiting groove (207).

5. The elevator speed governor operating speed detection platform according to claim 1, characterized in that: The detection assembly also includes a second hydraulic cylinder (108) and a clamping plate (109). The two ends of the worktable (101) are fixedly connected to one end of the second hydraulic cylinder (108), and the other end of the second hydraulic cylinder (108) is fixedly connected to the clamping plate (109). The clamping plates (109) clamp and connect the speed limiter housing (102).

6. The elevator speed governor operating speed detection platform according to claim 2, characterized in that: It also includes a quick-release assembly, which includes an L-shaped plate (301), a T-shaped rod (302), and a top block (303). The L-shaped plate (301) is fixedly connected to the recessed strip (201), the T-shaped rod (302) is movably inserted into the L-shaped plate (301), the bottom of the T-shaped rod (302) is fixedly connected to the top block (303), and the top block (303) is movably connected to the locking block (205).

7. The elevator speed governor operating speed detection platform according to claim 6, characterized in that: The quick disassembly assembly also includes a limiting spring (304), which is movably sleeved on the outside of the T-shaped rod (302). There are a total of two limiting springs (304), located at the upper and lower ends of the L-shaped plate (301) respectively.

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