Auxiliary tool for lining plate of jaw crusher
By combining a graduated ruler and an auxiliary positioning rod, the problem of complex installation of jaw crusher liners was solved, enabling rapid and accurate positioning and simplified installation, thus improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-17
AI Technical Summary
The installation and removal process of existing jaw crusher liners is complex, time-consuming and inefficient, and the traditional screw fixing method is complicated and consumes a lot of manpower.
Using a combination of graduated rulers, square handles, and auxiliary positioning rods, the tool achieves rapid and accurate positioning and installation of the liner through the rigid engagement of the positioning reference protrusion with the positioning groove, the hook-shaped claws, and the fixation of detachable connectors.
It enables rapid and accurate positioning and installation of the lining plates, simplifies the installation process, improves work efficiency, and reduces labor costs.
Smart Images

Figure CN223997772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an auxiliary tool for jaw crusher liners, belonging to the technical field of jaw crusher. Background Technology
[0002] Currently, the liners on the market are basically fixed to the crushers with screws. This structure is complicated to install and requires a lot of manpower. Using a screwless or screwless installation process can better meet customer needs and greatly reduce the workload. In addition, the installation and disassembly of the liners are complicated. When disassembling, it takes a lot of time and the work efficiency is low. Utility Model Content
[0003] In order to solve the above-mentioned problems in the existing technology, this utility model provides an auxiliary tool for jaw crusher liners, which can achieve quick alignment and installation.
[0004] The technical solution of this utility model is as follows:
[0005] An auxiliary tool for jaw crusher liners includes a graduated scale, a square handle, and an auxiliary positioning rod. At least two positioning blocks are provided on the mounting surface of the jaw crusher jaw plate, and a positioning groove matching the positioning blocks is provided on the back of the crusher liner. One end of the graduated scale has a positioning reference protrusion for alignment with the positioning groove of the jaw crusher liner. The other end of the graduated scale and the square handle are fixedly connected by a detachable connector. The auxiliary positioning rod hooks onto the positioning blocks to calibrate the installation position of the graduated scale, and the liner offset is calibrated by measuring the scale.
[0006] The device includes a main frame, threaded holes on both sides of the main frame, and a slot at the top of the main frame. The detachable connector includes a plug block and a locking bolt. The plug block is fixed to the bottom of the scale and is inserted into the slot of the square handle. The scale and the square handle are fixedly connected by the locking bolt passing through the threaded hole on the side wall of the plug block and the slot.
[0007] The auxiliary positioning rod includes a vertical section and a horizontal section. The square handle has a side positioning hole on its side. The vertical section is detachably inserted into the side positioning hole. The end of the horizontal section is provided with a hook-shaped claw that matches the positioning block. The horizontal section of the auxiliary positioning rod hooks the positioning block through the hook-shaped claw.
[0008] The vertical section of the auxiliary positioning rod is a telescopic structure, including an inner rod and an outer sleeve fitted on the outside of the inner rod. The inner rod and the outer sleeve are fixed together by locking screws on the side wall.
[0009] The outer surface of the main frame of the square handle is provided with anti-slip texture.
[0010] The scale ruler has a sliding groove extending along its length on its back side. A movable measuring slider is embedded in the sliding groove. The movable measuring slider is fixed at any position in the sliding groove by a slider locking bolt. The movable measuring slider has auxiliary scale lines aligned with the scale ruler.
[0011] This utility model has the following beneficial effects:
[0012] This invention achieves rapid and accurate positioning of the liner installation position and direct calibration of the offset by using a rigid engagement between the positioning reference protrusion at the end of the scale and the liner positioning groove, as well as the hook-shaped claw of the auxiliary positioning rod to lock the jaw plate positioning block. The vertical insertion structure of the plug-in block and the square handle's plug-in groove, along with the fixing method of the locking bolt, ensures a rigid connection between the scale and the handle, achieving stability of the overall tool structure and meeting the requirements for disassembly and maintenance. Furthermore, the vertical extension and retraction adjustment of the auxiliary positioning rod and the auxiliary scale lines of the movable measuring slider within the sliding groove cover installation scenarios with positioning blocks of different sizes, achieving adaptive expansion of the measurement range and multi-point error verification. Attached Figure Description
[0013] Figure 1 This is a front view of the present utility model;
[0014] Figure 2 This is a side view of the present invention;
[0015] Figure 3 This is a partial half-sectional view of the present invention;
[0016] Figure 4 This is a schematic diagram of the movable measuring slider of this utility model.
[0017] The reference numerals in the figure are as follows:
[0018] 1. Scale; 2. Square handle; 4. Detachable connector; 5. Auxiliary positioning rod; 12. Sliding groove; 13. Movable measuring slider; 14. Slider locking bolt; 21. Main frame; 23. Insertion groove; 24. Side positioning hole; 41. Insertion block; 42. Locking bolt; 51. Vertical section; 52. Horizontal section; 53. Hook-shaped claw; 511. Inner rod; 512. Outer tube. Detailed Implementation
[0019] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0020] Please see Figures 1 to 4 The utility model provides a technical solution:
[0021] An auxiliary tool for jaw crusher liners includes a graduated scale 1, a square handle 2, and an auxiliary positioning rod 5. At least two positioning blocks are provided on the mounting surface of the jaw crusher jaw plate, and a positioning groove matching the positioning blocks is provided on the back of the crusher liner. One end of the graduated scale 1 has a positioning reference protrusion for alignment with the positioning groove of the jaw crusher liner. The other end of the graduated scale 1 is fixedly connected to the square handle 2 via a detachable connector 4. The outer surface of the main frame 21 of the square handle 2 has anti-slip textures. The specially designed anti-slip surface texture ensures the safety of the square handle 2 when gripped. The auxiliary positioning rod 5 hooks onto the positioning blocks to calibrate the installation position of the graduated scale 1 and calibrates the liner offset using the measurement scale of the graduated scale 1. Through the cooperation between the positioning reference protrusion and the liner positioning groove, and the structure of the auxiliary positioning rod 5, rapid and accurate positioning of the measurement reference can be achieved.
[0022] It also includes a main frame 21, fixing bolt mounting holes 22 on both sides of the main frame 21, and a plug-in groove 23 on the top of the main frame 21; the detachable connector 4 includes a plug-in block 41 and a locking bolt 42. The plug-in block 41 is fixed to the bottom of the scale 1 and is inserted into the plug-in groove 23 of the square handle 2. The scale 1 and the square handle 2 are fixedly connected by the locking bolt 42 passing through the threaded hole on the side wall of the plug-in block 41 and the plug-in groove 23; the scale assembly can be quickly disassembled and the angle adjusted by the guiding fit between the plug-in block 41 and the plug-in groove 23 and the fixing method of the locking bolt 42; as an option, a pressure sensing module can be set at the bottom of the plug-in groove 23 to indicate the locking status through sound and light.
[0023] The auxiliary positioning rod 5 includes a vertical section 51 and a horizontal section 52. The square handle 2 has a side positioning hole 24 on its side. The vertical section 51 can be detachably inserted into the side positioning hole 24. The end of the horizontal section 52 is provided with a hook-shaped claw 53 that matches the positioning block. The horizontal section 52 of the auxiliary positioning rod 5 hooks the positioning block through the hook-shaped claw 53.
[0024] The vertical section 51 of the auxiliary positioning rod 5 is a telescopic structure, including an inner rod 511 and an outer sleeve 512 sleeved on the outside of the inner rod 511. The inner rod 511 and the outer sleeve 512 are fixed by locking screws on the side wall.
[0025] The back of the scale 1 is provided with a sliding groove 12 extending along the length direction. A movable measuring slider 13 is embedded in the sliding groove 12. The movable measuring slider 13 is fixed at any position in the sliding groove 12 by a slider locking bolt 14. The movable measuring slider 13 is provided with auxiliary scale lines aligned with the scale of the scale 1.
[0026] Specifically, the bottom of the scale 1 has a T-shaped insertion block 41 that inserts into the T-shaped insertion slot 23 at the top of the square handle 2. It is fixed by a locking bolt 42 that passes vertically through the threaded hole on the side wall of the insertion block 41 and the insertion slot 23. The main frame 21 of the square handle 2 has mounting holes for fixing bolts on both sides. Two fixing bolts pass through the mounting holes 22 to fix the square handle 2 in the preset threaded hole of the jaw crusher. The vertical section 51 of the auxiliary positioning rod 5 is inserted into the side positioning hole 24 of the square handle 2, and the hook-shaped claw 53 at the end of the horizontal section 52 is used to hook the positioning block. The sliding groove 12 on the back of the scale 1 has a movable measuring slider 13 embedded in it. The slider is fixed in position by the slider locking bolt 14, and the auxiliary scale line on the slider is aligned with the main scale. The anti-slip texture on the outer surface of the square handle 2 is an axial groove array to assist hand operation.
[0027] The working principle of the above-mentioned jaw crusher liner auxiliary tool is as follows:
[0028] First, fix the square handle 2 onto the jaw crusher. Insert the insertion block 41 of the scale 1 into the insertion slot 23 of the square handle 2 and lock it with the locking bolt 42, so that the positioning reference protrusion at the end of the scale 1 is aligned with the positioning slot of the jaw plate. Insert the vertical section 51 of the auxiliary positioning rod 5 into the side positioning hole 24 of the square handle 2, and hook the hook-shaped claw 53 at the end of the horizontal section 52 onto the positioning block of the jaw crusher liner to achieve relative position calibration between the scale 1 and the positioning block. If it is necessary to adapt to different sized positioning blocks, the locking screw of the auxiliary positioning rod 5 can be loosened and the inner rod 511 and outer sleeve 512 can be extended and retracted to adjust the length. By sliding the movable measuring slider 13 on the back of the scale 1 to the edge of the liner, the offset between the auxiliary scale line and the main scale can be read to complete the measurement of the liner installation position error. When disassembling, loosen the locking bolt 42 to separate the scale 1 and the square handle 2, and the tool can be retrieved.
[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A jaw crusher liner aid tool, characterized by: The jaw crusher jaw plate mounting surface is provided with at least two positioning blocks, and the crusher lining plate back surface is provided with a positioning groove matched with the positioning block; one end of the scale ruler (1) is provided with a positioning reference protrusion, which is used for aligning with the jaw crusher lining plate positioning groove, the other end of the scale ruler (1) and the square handle (2) are fixedly connected through a detachable connecting piece (4), and the auxiliary positioning rod (5) hooks the positioning block, so that the installation position of the scale ruler (1) is calibrated, and the offset of the lining plate is calibrated through the measurement scale of the scale ruler (1).
2. A tool for assisting in the removal of a jaw crusher liner as claimed in claim 1, characterised in that: The detachable connecting piece (4) includes a plug-in block (41) and a locking bolt (42), the plug-in block (41) is fixed to the bottom of the scale ruler (1), the plug-in block (41) is inserted into the plug-in slot (23) of the square handle (2), and the locking bolt (42) penetrates the threaded holes in the side walls of the plug-in block (41) and the plug-in slot (23) to realize the fixed connection between the scale ruler (1) and the square handle (2).
3. A tool for assisting in the removal of a jaw crusher liner as claimed in claim 2, characterised in that: The auxiliary positioning rod (5) includes a vertical section (51) and a horizontal section (52), the side edge of the square handle (2) is provided with a side edge positioning hole (24), the vertical section (51) is detachably plugged into the side edge positioning hole (24), and the end of the horizontal section (52) is provided with a hook-shaped clamping jaw (53) matched with the positioning block; the horizontal section (52) of the auxiliary positioning rod (5) hooks the positioning block through the hook-shaped clamping jaw (53).
4. A tool for assisting in the removal of a jaw crusher liner as claimed in claim 3, characterised in that: The vertical section (51) of the auxiliary positioning rod (5) is a telescopic structure, including an inner rod (511) and an outer sleeve (512) sleeved outside the inner rod (511), and the inner rod (511) and the outer sleeve (512) are fixed through locking screws in the side walls.
5. A tool for assisting in the removal of a jaw crusher liner as claimed in claim 4, characterised in that: The outer surface of the main body frame (21) of the square handle (2) is provided with an anti-skid pattern.
6. A jaw crusher liner assist tool as claimed in claim 1, characterised in that: The back surface of the scale ruler (1) is provided with a sliding groove (12) extending in the length direction, a movable measuring slide block (13) is embedded in the sliding groove (12), the movable measuring slide block (13) is fixed at any position of the sliding groove (12) through a slide block locking bolt (14), and the movable measuring slide block (13) is provided with an auxiliary scale line aligned with the scale of the scale ruler (1).